From a9828ec6bc0b7e19a65f7e13daa8bd35a926a753 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 1 Oct 2009 11:33:03 +0000 Subject: ethtool: Remove support for obsolete string query operations The in-tree implementations have all been converted to get_sset_count(). Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/ethtool.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 15e4eb713694..aa0dcb3833d1 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -495,10 +495,6 @@ struct ethtool_ops { u32 (*get_priv_flags)(struct net_device *); int (*set_priv_flags)(struct net_device *, u32); int (*get_sset_count)(struct net_device *, int); - - /* the following hooks are obsolete */ - int (*self_test_count)(struct net_device *);/* use get_sset_count */ - int (*get_stats_count)(struct net_device *);/* use get_sset_count */ int (*get_rxnfc)(struct net_device *, struct ethtool_rxnfc *, void *); int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *); int (*flash_device)(struct net_device *, struct ethtool_flash *); -- cgit v1.2.3 From 977750076d98c7ff6cbda51858bb5a5894a9d9ab Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 2 Oct 2009 06:56:41 +0000 Subject: af_packet: add interframe drop cmsg (v6) Add Ancilliary data to better represent loss information I've had a few requests recently to provide more detail regarding frame loss during an AF_PACKET packet capture session. Specifically the requestors want to see where in a packet sequence frames were lost, i.e. they want to see that 40 frames were lost between frames 302 and 303 in a packet capture file. In order to do this we need: 1) The kernel to export this data to user space 2) The applications to make use of it This patch addresses item (1). It does this by doing the following: A) Anytime we drop a frame for which we would increment po->stats.tp_drops, we also no increment a stats called po->stats.tp_gap. B) Every time we successfully enqueue a frame to sk_receive_queue, we record the value of po->stats.tp_gap in skb->mark. skb->cb would nominally be the place to record this, but since all the space there is used up, we're overloading skb->mark. Its safe to do since any enqueued packet is guaranteed to be unshared at this point, and skb->mark isn't used for anything else in the rx path to the application. After we record tp_gap in the skb, we zero po->stats.tp_gap. This allows us to keep a counter of the number of frames lost between any two enqueued packets C) When the application goes to dequeue a frame from the packet socket, we look at skb->mark for that frame. If it is non-zero, we add a cmsg chunk to the msghdr of level SOL_PACKET and type PACKET_GAPDATA. Its a 32 bit integer that represents the number of frames lost between this packet and the last previous frame received. Note there is a chance that if there is frame loss after a receive, and then the socket is closed, some gap data might be lost. This is covered by the use of the PACKET_AUXDATA socket option, which gives total loss data. With a bit of math, the final gap can be determined that way. I've tested this patch myself, and it works well. Signed-off-by: Neil Horman Signed-off-by: Eric Dumazet include/linux/if_packet.h | 2 ++ net/packet/af_packet.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) Signed-off-by: David S. Miller --- include/linux/if_packet.h | 2 ++ net/packet/af_packet.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) (limited to 'include/linux') diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h index dea7d6b7cf98..e5d200f53fc3 100644 --- a/include/linux/if_packet.h +++ b/include/linux/if_packet.h @@ -48,11 +48,13 @@ struct sockaddr_ll #define PACKET_RESERVE 12 #define PACKET_TX_RING 13 #define PACKET_LOSS 14 +#define PACKET_GAPDATA 15 struct tpacket_stats { unsigned int tp_packets; unsigned int tp_drops; + unsigned int tp_gap; }; struct tpacket_auxdata diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index d7ecca0a0c07..d398a9bf6903 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -523,6 +523,31 @@ static inline unsigned int run_filter(struct sk_buff *skb, struct sock *sk, return res; } +/* + * If we've lost frames since the last time we queued one to the + * sk_receive_queue, we need to record it here. + * This must be called under the protection of the socket lock + * to prevent racing with other softirqs and user space + */ +static inline void record_packet_gap(struct sk_buff *skb, + struct packet_sock *po) +{ + /* + * We overload the mark field here, since we're about + * to enqueue to a receive queue and no body else will + * use this field at this point + */ + skb->mark = po->stats.tp_gap; + po->stats.tp_gap = 0; + return; + +} + +static inline __u32 check_packet_gap(struct sk_buff *skb) +{ + return skb->mark; +} + /* This function makes lazy skb cloning in hope that most of packets are discarded by BPF. @@ -626,6 +651,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_packets++; + record_packet_gap(skb, po); __skb_queue_tail(&sk->sk_receive_queue, skb); spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_ready(sk, skb->len); @@ -634,6 +660,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, drop_n_acct: spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_drops++; + po->stats.tp_gap++; spin_unlock(&sk->sk_receive_queue.lock); drop_n_restore: @@ -811,6 +838,7 @@ drop: ring_is_full: po->stats.tp_drops++; + po->stats.tp_gap++; spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_ready(sk, 0); @@ -1418,6 +1446,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, struct sk_buff *skb; int copied, err; struct sockaddr_ll *sll; + __u32 gap; err = -EINVAL; if (flags & ~(MSG_PEEK|MSG_DONTWAIT|MSG_TRUNC|MSG_CMSG_COMPAT)) @@ -1496,6 +1525,10 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux); } + gap = check_packet_gap(skb); + if (gap) + put_cmsg(msg, SOL_PACKET, PACKET_GAPDATA, sizeof(__u32), &gap); + /* * Free or return the buffer as appropriate. Again this * hides all the races and re-entrancy issues from us. -- cgit v1.2.3 From e1e499eef2200c2a7120c9ebf297d48b195cf887 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Fri, 2 Oct 2009 05:15:25 +0000 Subject: usbnet: Use wwan%d interface name for mobile broadband devices Add support for usbnet based devices like CDC-Ether to indicate that they are actually mobile broadband devices. In that case use wwan%d as default interface name. Signed-off-by: Marcel Holtmann Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 20 ++++++++++++++------ drivers/net/usb/usbnet.c | 3 +++ include/linux/usb/usbnet.h | 1 + 3 files changed, 18 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 4a6aff579403..71e65fc10e6f 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -420,6 +420,14 @@ static const struct driver_info cdc_info = { .status = cdc_status, }; +static const struct driver_info mbm_info = { + .description = "Mobile Broadband Network Device", + .flags = FLAG_WWAN, + .bind = cdc_bind, + .unbind = usbnet_cdc_unbind, + .status = cdc_status, +}; + /*-------------------------------------------------------------------------*/ @@ -532,32 +540,32 @@ static const struct usb_device_id products [] = { /* Ericsson F3507g */ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1900, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { /* Ericsson F3507g ver. 2 */ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1902, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { /* Ericsson F3607gw */ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1904, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { /* Ericsson F3307 */ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1906, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { /* Toshiba F3507g */ USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { /* Dell F3507g */ USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8147, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, + .driver_info = (unsigned long) &mbm_info, }, { }, // END }; diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index ca5ca5ae061d..8124cf16259f 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1295,6 +1295,9 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) /* WLAN devices should always be named "wlan%d" */ if ((dev->driver_info->flags & FLAG_WLAN) != 0) strcpy(net->name, "wlan%d"); + /* WWAN devices should always be named "wwan%d" */ + if ((dev->driver_info->flags & FLAG_WWAN) != 0) + strcpy(net->name, "wwan%d"); /* maybe the remote can't receive an Ethernet MTU */ if (net->mtu > (dev->hard_mtu - net->hard_header_len)) diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index f81473052059..86c31b753266 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -90,6 +90,7 @@ struct driver_info { #define FLAG_WLAN 0x0080 /* use "wlan%d" names */ #define FLAG_AVOID_UNLINK_URBS 0x0100 /* don't unlink urbs at usbnet_stop() */ #define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */ +#define FLAG_WWAN 0x0400 /* use "wwan%d" names */ /* init device ... can sleep, or cause probe() failure */ -- cgit v1.2.3 From 7ffbe3fdace0bdfcdab8dc6c77506feda0871f79 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 2 Oct 2009 05:15:27 +0000 Subject: net: introduce NETDEV_POST_INIT notifier For various purposes including a wireless extensions bugfix, we need to hook into the netdev creation before before netdev_register_kobject(). This will also ease doing the dev type assignment that Marcel was working on for cfg80211 drivers w/o touching them all. Signed-off-by: Johannes Berg Signed-off-by: Marcel Holtmann Signed-off-by: David S. Miller --- include/linux/notifier.h | 1 + net/core/dev.c | 6 ++++++ 2 files changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 44428d247dbe..29714b8441b1 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -201,6 +201,7 @@ static inline int notifier_to_errno(int ret) #define NETDEV_PRE_UP 0x000D #define NETDEV_BONDING_OLDTYPE 0x000E #define NETDEV_BONDING_NEWTYPE 0x000F +#define NETDEV_POST_INIT 0x0010 #define SYS_DOWN 0x0001 /* Notify of system down */ #define SYS_RESTART SYS_DOWN diff --git a/net/core/dev.c b/net/core/dev.c index b8f74cfb1bfd..a74c8fd69556 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4836,6 +4836,12 @@ int register_netdevice(struct net_device *dev) dev->features |= NETIF_F_GSO; netdev_initialize_kobject(dev); + + ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev); + ret = notifier_to_errno(ret); + if (ret) + goto err_uninit; + ret = netdev_register_kobject(dev); if (ret) goto err_uninit; -- cgit v1.2.3 From ee5e81f00051b5c373c8de16e3604fd6d3be699e Mon Sep 17 00:00:00 2001 From: Ilia K Date: Wed, 16 Sep 2009 05:53:07 +0000 Subject: add vif using local interface index instead of IP When routing daemon wants to enable forwarding of multicast traffic it performs something like: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = 0, .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_addr = ip, /* <--- ip address of physical interface, e.g. eth0 */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); This leads (in the kernel) to calling vif_add() function call which search the (physical) device using assigned IP address: dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); The current API (struct vifctl) does not allow to specify an interface other way than using it's IP, and if there are more than a single interface with specified IP only the first one will be found. The attached patch (against 2.6.30.4) allows to specify an interface by its index, instead of IP address: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = VIFF_USE_IFINDEX, /* NEW */ .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_ifindex = if_nametoindex("eth0"), /* NEW */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); Signed-off-by: Ilia K. === modified file 'include/linux/mroute.h' Signed-off-by: David S. Miller --- include/linux/mroute.h | 13 +++++++++---- net/ipv4/ipmr.c | 12 +++++++++++- 2 files changed, 20 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mroute.h b/include/linux/mroute.h index 08bc776d05e2..d5f69151f692 100644 --- a/include/linux/mroute.h +++ b/include/linux/mroute.h @@ -59,13 +59,18 @@ struct vifctl { unsigned char vifc_flags; /* VIFF_ flags */ unsigned char vifc_threshold; /* ttl limit */ unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ - struct in_addr vifc_lcl_addr; /* Our address */ + union { + struct in_addr vifc_lcl_addr; /* Local interface address */ + int vifc_lcl_ifindex; /* Local interface index */ + }; struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ }; -#define VIFF_TUNNEL 0x1 /* IPIP tunnel */ -#define VIFF_SRCRT 0x2 /* NI */ -#define VIFF_REGISTER 0x4 /* register vif */ +#define VIFF_TUNNEL 0x1 /* IPIP tunnel */ +#define VIFF_SRCRT 0x2 /* NI */ +#define VIFF_REGISTER 0x4 /* register vif */ +#define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of + vifc_lcl_addr to find an interface */ /* * Cache manipulation structures for mrouted and PIMd diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 630a56df7b47..c757f0b4b74c 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -469,8 +469,18 @@ static int vif_add(struct net *net, struct vifctl *vifc, int mrtsock) return err; } break; + + case VIFF_USE_IFINDEX: case 0: - dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); + if (vifc->vifc_flags == VIFF_USE_IFINDEX) { + dev = dev_get_by_index(net, vifc->vifc_lcl_ifindex); + if (dev && dev->ip_ptr == NULL) { + dev_put(dev); + return -EADDRNOTAVAIL; + } + } else + dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); + if (!dev) return -EADDRNOTAVAIL; err = dev_set_allmulti(dev, 1); -- cgit v1.2.3 From fa857afcf77da669eb6b7031ec07ad14b912c307 Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki / 吉藤英明 Date: Tue, 22 Sep 2009 23:43:14 +0000 Subject: ipv6 sit: 6rd (IPv6 Rapid Deployment) Support. IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly deploy IPv6 unicast service to IPv4 sites to which it provides customer premise equipment. Like 6to4, it utilizes stateless IPv6 in IPv4 encapsulation in order to transit IPv4-only network infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6 prefix of its own in place of the fixed 6to4 prefix. With this option enabled, the SIT driver offers 6rd functionality by providing additional ioctl API to configure the IPv6 Prefix for in stead of static 2002::/16 for 6to4. Original patch was done by Alexandre Cassen based on old Internet-Draft. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/if_tunnel.h | 11 ++++ include/net/ipip.h | 13 +++++ net/ipv6/Kconfig | 19 +++++++ net/ipv6/sit.c | 124 +++++++++++++++++++++++++++++++++++++++++++--- 4 files changed, 159 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h index 5a9aae4adb44..c53c8e016940 100644 --- a/include/linux/if_tunnel.h +++ b/include/linux/if_tunnel.h @@ -15,6 +15,10 @@ #define SIOCADDPRL (SIOCDEVPRIVATE + 5) #define SIOCDELPRL (SIOCDEVPRIVATE + 6) #define SIOCCHGPRL (SIOCDEVPRIVATE + 7) +#define SIOCGET6RD (SIOCDEVPRIVATE + 8) +#define SIOCADD6RD (SIOCDEVPRIVATE + 9) +#define SIOCDEL6RD (SIOCDEVPRIVATE + 10) +#define SIOCCHG6RD (SIOCDEVPRIVATE + 11) #define GRE_CSUM __cpu_to_be16(0x8000) #define GRE_ROUTING __cpu_to_be16(0x4000) @@ -51,6 +55,13 @@ struct ip_tunnel_prl { /* PRL flags */ #define PRL_DEFAULT 0x0001 +struct ip_tunnel_6rd { + struct in6_addr prefix; + __be32 relay_prefix; + __u16 prefixlen; + __u16 relay_prefixlen; +}; + enum { IFLA_GRE_UNSPEC, diff --git a/include/net/ipip.h b/include/net/ipip.h index 0159221a8509..86f1c8bd040c 100644 --- a/include/net/ipip.h +++ b/include/net/ipip.h @@ -7,6 +7,15 @@ /* Keep error state on tunnel for 30 sec */ #define IPTUNNEL_ERR_TIMEO (30*HZ) +/* 6rd prefix/relay information */ +struct ip_tunnel_6rd_parm +{ + struct in6_addr prefix; + __be32 relay_prefix; + u16 prefixlen; + u16 relay_prefixlen; +}; + struct ip_tunnel { struct ip_tunnel *next; @@ -23,6 +32,10 @@ struct ip_tunnel struct ip_tunnel_parm parms; + /* for SIT */ +#ifdef CONFIG_IPV6_SIT_6RD + struct ip_tunnel_6rd_parm ip6rd; +#endif struct ip_tunnel_prl_entry *prl; /* potential router list */ unsigned int prl_count; /* # of entries in PRL */ }; diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index ead6c7a42f44..f56199827452 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -170,6 +170,25 @@ config IPV6_SIT Saying M here will produce a module called sit. If unsure, say Y. +config IPV6_SIT_6RD + bool "IPv6: IPv6 Rapid Development (6RD) (EXPERIMENTAL)" + depends on IPV6_SIT && EXPERIMENTAL + default n + ---help--- + IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon + mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly + deploy IPv6 unicast service to IPv4 sites to which it provides + customer premise equipment. Like 6to4, it utilizes stateless IPv6 in + IPv4 encapsulation in order to transit IPv4-only network + infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6 + prefix of its own in place of the fixed 6to4 prefix. + + With this option enabled, the SIT driver offers 6rd functionality by + providing additional ioctl API to configure the IPv6 Prefix for in + stead of static 2002::/16 for 6to4. + + If unsure, say N. + config IPV6_NDISC_NODETYPE bool diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 99da272951dc..6955654262a5 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -161,6 +161,21 @@ static void ipip6_tunnel_link(struct sit_net *sitn, struct ip_tunnel *t) write_unlock_bh(&ipip6_lock); } +static void ipip6_tunnel_clone_6rd(struct ip_tunnel *t, struct sit_net *sitn) +{ +#ifdef CONFIG_IPV6_SIT_6RD + if (t->dev == sitn->fb_tunnel_dev) { + ipv6_addr_set(&t->ip6rd.prefix, htonl(0x20020000), 0, 0, 0); + t->ip6rd.relay_prefix = 0; + t->ip6rd.prefixlen = 16; + t->ip6rd.relay_prefixlen = 0; + } else { + struct ip_tunnel *t0 = netdev_priv(sitn->fb_tunnel_dev); + memcpy(&t->ip6rd, &t0->ip6rd, sizeof(t->ip6rd)); + } +#endif +} + static struct ip_tunnel * ipip6_tunnel_locate(struct net *net, struct ip_tunnel_parm *parms, int create) { @@ -213,6 +228,8 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct net *net, dev_hold(dev); + ipip6_tunnel_clone_6rd(t, sitn); + ipip6_tunnel_link(sitn, nt); return nt; @@ -532,17 +549,41 @@ out: return 0; } -/* Returns the embedded IPv4 address if the IPv6 address - comes from 6to4 (RFC 3056) addr space */ - -static inline __be32 try_6to4(struct in6_addr *v6dst) +/* + * Returns the embedded IPv4 address if the IPv6 address + * comes from 6rd / 6to4 (RFC 3056) addr space. + */ +static inline +__be32 try_6rd(struct in6_addr *v6dst, struct ip_tunnel *tunnel) { __be32 dst = 0; +#ifdef CONFIG_IPV6_SIT_6RD + if (ipv6_prefix_equal(v6dst, &tunnel->ip6rd.prefix, + tunnel->ip6rd.prefixlen)) { + unsigned pbw0, pbi0; + int pbi1; + u32 d; + + pbw0 = tunnel->ip6rd.prefixlen >> 5; + pbi0 = tunnel->ip6rd.prefixlen & 0x1f; + + d = (ntohl(tunnel->ip6rd.prefix.s6_addr32[pbw0]) << pbi0) >> + tunnel->ip6rd.relay_prefixlen; + + pbi1 = pbi0 - tunnel->ip6rd.relay_prefixlen; + if (pbi1 > 0) + d |= ntohl(tunnel->ip6rd.prefix.s6_addr32[pbw0 + 1]) >> + (32 - pbi1); + + dst = tunnel->ip6rd.relay_prefix | htonl(d); + } +#else if (v6dst->s6_addr16[0] == htons(0x2002)) { /* 6to4 v6 addr has 16 bits prefix, 32 v4addr, 16 SLA, ... */ memcpy(&dst, &v6dst->s6_addr16[1], 4); } +#endif return dst; } @@ -596,7 +637,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, } if (!dst) - dst = try_6to4(&iph6->daddr); + dst = try_6rd(&iph6->daddr, tunnel); if (!dst) { struct neighbour *neigh = NULL; @@ -786,9 +827,15 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) struct ip_tunnel *t; struct net *net = dev_net(dev); struct sit_net *sitn = net_generic(net, sit_net_id); +#ifdef CONFIG_IPV6_SIT_6RD + struct ip_tunnel_6rd ip6rd; +#endif switch (cmd) { case SIOCGETTUNNEL: +#ifdef CONFIG_IPV6_SIT_6RD + case SIOCGET6RD: +#endif t = NULL; if (dev == sitn->fb_tunnel_dev) { if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p))) { @@ -799,9 +846,25 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) } if (t == NULL) t = netdev_priv(dev); - memcpy(&p, &t->parms, sizeof(p)); - if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof(p))) - err = -EFAULT; + + err = -EFAULT; + if (cmd == SIOCGETTUNNEL) { + memcpy(&p, &t->parms, sizeof(p)); + if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, + sizeof(p))) + goto done; +#ifdef CONFIG_IPV6_SIT_6RD + } else { + ipv6_addr_copy(&ip6rd.prefix, &t->ip6rd.prefix); + ip6rd.relay_prefix = t->ip6rd.relay_prefix; + ip6rd.prefixlen = t->ip6rd.prefixlen; + ip6rd.relay_prefixlen = t->ip6rd.relay_prefixlen; + if (copy_to_user(ifr->ifr_ifru.ifru_data, &ip6rd, + sizeof(ip6rd))) + goto done; +#endif + } + err = 0; break; case SIOCADDTUNNEL: @@ -922,6 +985,51 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) netdev_state_change(dev); break; +#ifdef CONFIG_IPV6_SIT_6RD + case SIOCADD6RD: + case SIOCCHG6RD: + case SIOCDEL6RD: + err = -EPERM; + if (!capable(CAP_NET_ADMIN)) + goto done; + + err = -EFAULT; + if (copy_from_user(&ip6rd, ifr->ifr_ifru.ifru_data, + sizeof(ip6rd))) + goto done; + + t = netdev_priv(dev); + + if (cmd != SIOCDEL6RD) { + struct in6_addr prefix; + __be32 relay_prefix; + + err = -EINVAL; + if (ip6rd.relay_prefixlen > 32 || + ip6rd.prefixlen + (32 - ip6rd.relay_prefixlen) > 64) + goto done; + + ipv6_addr_prefix(&prefix, &ip6rd.prefix, + ip6rd.prefixlen); + if (!ipv6_addr_equal(&prefix, &ip6rd.prefix)) + goto done; + relay_prefix = ip6rd.relay_prefix & + htonl(0xffffffffUL << + (32 - ip6rd.relay_prefixlen)); + if (relay_prefix != ip6rd.relay_prefix) + goto done; + + ipv6_addr_copy(&t->ip6rd.prefix, &prefix); + t->ip6rd.relay_prefix = relay_prefix; + t->ip6rd.prefixlen = ip6rd.prefixlen; + t->ip6rd.relay_prefixlen = ip6rd.relay_prefixlen; + } else + ipip6_tunnel_clone_6rd(t, sitn); + + err = 0; + break; +#endif + default: err = -EINVAL; } -- cgit v1.2.3 From d73d3a8cb4723e161589864741d8528d70b350eb Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 5 Oct 2009 10:59:58 +0000 Subject: ethtool: Add reset operation After updating firmware stored in flash, users may wish to reset the relevant hardware and start the new firmware immediately. This should not be completely automatic as it may be disruptive. A selective reset may also be useful for debugging or diagnostics. This adds a separate reset operation which takes flags indicating the components to be reset. Drivers are allowed to reset only a subset of those requested, and must indicate the actual subset. This allows the use of generic component masks and some future expansion. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- include/linux/ethtool.h | 32 ++++++++++++++++++++++++++++++++ net/core/ethtool.c | 23 +++++++++++++++++++++++ 2 files changed, 55 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index aa0dcb3833d1..eb1a48da2d43 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -498,6 +498,7 @@ struct ethtool_ops { int (*get_rxnfc)(struct net_device *, struct ethtool_rxnfc *, void *); int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *); int (*flash_device)(struct net_device *, struct ethtool_flash *); + int (*reset)(struct net_device *, u32 *); }; #endif /* __KERNEL__ */ @@ -555,6 +556,7 @@ struct ethtool_ops { #define ETHTOOL_SRXCLSRLDEL 0x00000031 /* Delete RX classification rule */ #define ETHTOOL_SRXCLSRLINS 0x00000032 /* Insert RX classification rule */ #define ETHTOOL_FLASHDEV 0x00000033 /* Flash firmware to device */ +#define ETHTOOL_RESET 0x00000034 /* Reset hardware */ /* compatibility with older code */ #define SPARC_ETH_GSET ETHTOOL_GSET @@ -685,4 +687,34 @@ struct ethtool_ops { #define RX_CLS_FLOW_DISC 0xffffffffffffffffULL +/* Reset flags */ +/* The reset() operation must clear the flags for the components which + * were actually reset. On successful return, the flags indicate the + * components which were not reset, either because they do not exist + * in the hardware or because they cannot be reset independently. The + * driver must never reset any components that were not requested. + */ +enum ethtool_reset_flags { + /* These flags represent components dedicated to the interface + * the command is addressed to. Shift any flag left by + * ETH_RESET_SHARED_SHIFT to reset a shared component of the + * same type. + */ + ETH_RESET_MGMT = 1 << 0, /* Management processor */ + ETH_RESET_IRQ = 1 << 1, /* Interrupt requester */ + ETH_RESET_DMA = 1 << 2, /* DMA engine */ + ETH_RESET_FILTER = 1 << 3, /* Filtering/flow direction */ + ETH_RESET_OFFLOAD = 1 << 4, /* Protocol offload */ + ETH_RESET_MAC = 1 << 5, /* Media access controller */ + ETH_RESET_PHY = 1 << 6, /* Transceiver/PHY */ + ETH_RESET_RAM = 1 << 7, /* RAM shared between + * multiple components */ + + ETH_RESET_DEDICATED = 0x0000ffff, /* All components dedicated to + * this interface */ + ETH_RESET_ALL = 0xffffffff, /* All components used by this + * interface, even if shared */ +}; +#define ETH_RESET_SHARED_SHIFT 16 + #endif /* _LINUX_ETHTOOL_H */ diff --git a/net/core/ethtool.c b/net/core/ethtool.c index e1951084b973..d8aee584e8d1 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -302,6 +302,26 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) return ret; } +static int ethtool_reset(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_value reset; + int ret; + + if (!dev->ethtool_ops->reset) + return -EOPNOTSUPP; + + if (copy_from_user(&reset, useraddr, sizeof(reset))) + return -EFAULT; + + ret = dev->ethtool_ops->reset(dev, &reset.data); + if (ret) + return ret; + + if (copy_to_user(useraddr, &reset, sizeof(reset))) + return -EFAULT; + return 0; +} + static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) { struct ethtool_wolinfo wol = { ETHTOOL_GWOL }; @@ -1089,6 +1109,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_FLASHDEV: rc = ethtool_flash_device(dev, useraddr); break; + case ETHTOOL_RESET: + rc = ethtool_reset(dev, useraddr); + break; default: rc = -EOPNOTSUPP; } -- cgit v1.2.3 From f7734fdf61ec6bb848e0bafc1fb8bad2c124bb50 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Fri, 2 Oct 2009 11:39:15 +0000 Subject: make TLLAO option for NA packets configurable On Friday 02 October 2009 20:53:51 you wrote: > This is good although I would have shortened the name. Ah, I knew I forgot something :) Here is v4. tavi >From 24d96d825b9fa832b22878cc6c990d5711968734 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Fri, 2 Oct 2009 00:51:15 +0300 Subject: [PATCH] ipv6: new sysctl for sending TLLAO with unicast NAs Neighbor advertisements responding to unicast neighbor solicitations did not include the target link-layer address option. This patch adds a new sysctl option (disabled by default) which controls whether this option should be sent even with unicast NAs. The need for this arose because certain routers expect the TLLAO in some situations even as a response to unicast NS packets. Moreover, RFC 2461 recommends sending this to avoid a race condition (section 4.4, Target link-layer address) Signed-off-by: Cosmin Ratiu Signed-off-by: Octavian Purdila Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 18 ++++++++++++++++++ include/linux/ipv6.h | 1 + net/ipv6/addrconf.c | 8 ++++++++ net/ipv6/ndisc.c | 1 + 4 files changed, 28 insertions(+) (limited to 'include/linux') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index fbe427a6580c..a0e134dd2523 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1086,6 +1086,24 @@ accept_dad - INTEGER 2: Enable DAD, and disable IPv6 operation if MAC-based duplicate link-local address has been found. +force_tllao - BOOLEAN + Enable sending the target link-layer address option even when + responding to a unicast neighbor solicitation. + Default: FALSE + + Quoting from RFC 2461, section 4.4, Target link-layer address: + + "The option MUST be included for multicast solicitations in order to + avoid infinite Neighbor Solicitation "recursion" when the peer node + does not have a cache entry to return a Neighbor Advertisements + message. When responding to unicast solicitations, the option can be + omitted since the sender of the solicitation has the correct link- + layer address; otherwise it would not have be able to send the unicast + solicitation in the first place. However, including the link-layer + address in this case adds little overhead and eliminates a potential + race condition where the sender deletes the cached link-layer address + prior to receiving a response to a previous solicitation." + icmp/*: ratelimit - INTEGER Limit the maximal rates for sending ICMPv6 packets. diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index c662efa68289..ae74ede1abe7 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -167,6 +167,7 @@ struct ipv6_devconf { #endif __s32 disable_ipv6; __s32 accept_dad; + __s32 force_tllao; void *sysctl; }; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 1fd0a3d775d2..bdcee6981c60 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4352,6 +4352,14 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "force_tllao", + .data = &ipv6_devconf.force_tllao, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { .ctl_name = 0, /* sentinel */ } diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index f74e4e2cdd06..3507cfe1e7a2 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -598,6 +598,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, icmp6h.icmp6_solicited = solicited; icmp6h.icmp6_override = override; + inc_opt |= ifp->idev->cnf.force_tllao; __ndisc_send(dev, neigh, daddr, src_addr, &icmp6h, solicited_addr, inc_opt ? ND_OPT_TARGET_LL_ADDR : 0); -- cgit v1.2.3 From 32953543221cfe2bf0a24205fab225e5b8ed81a0 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 5 Oct 2009 06:01:03 +0000 Subject: dcb: data center bridging ops should be r/o The data center bridging ops structure can be const Signed-off-by: Stephen Hemminger Acked-by: Peter P Waskiewicz Jr Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe.h | 2 +- drivers/net/ixgbe/ixgbe_dcb_nl.c | 2 +- include/linux/netdevice.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index 385be6016667..28f32da794dd 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -397,7 +397,7 @@ enum ixgbe_boards { extern struct ixgbe_info ixgbe_82598_info; extern struct ixgbe_info ixgbe_82599_info; #ifdef CONFIG_IXGBE_DCB -extern struct dcbnl_rtnl_ops dcbnl_ops; +extern const struct dcbnl_rtnl_ops dcbnl_ops; extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max); diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c index a6bc1ef28f92..3c7a79a7d7c6 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c @@ -563,7 +563,7 @@ static u8 ixgbe_dcbnl_setapp(struct net_device *netdev, return rval; } -struct dcbnl_rtnl_ops dcbnl_ops = { +const struct dcbnl_rtnl_ops dcbnl_ops = { .getstate = ixgbe_dcbnl_get_state, .setstate = ixgbe_dcbnl_set_state, .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr, diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 94958c109761..b332eefebb1b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -909,7 +909,7 @@ struct net_device #ifdef CONFIG_DCB /* Data Center Bridging netlink ops */ - struct dcbnl_rtnl_ops *dcbnl_ops; + const struct dcbnl_rtnl_ops *dcbnl_ops; #endif #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) -- cgit v1.2.3 From 7c89606e24cdabaceb8ca9b3c7ab866c6bcc9e38 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Thu, 24 Sep 2009 12:21:01 +0200 Subject: nl80211: report age of scan results Linux keeps scan results up to 15 seconds. This can be a problem for fast moving clients: they get back stale data. But if the kernel reports the age of the BSS items, then user-space can simply weed out old entries by itself. Signed-off-by: Holger Schurig Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/linux/nl80211.h | 2 ++ net/wireless/nl80211.c | 2 ++ 2 files changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index a8d71ed43a0e..50afca3dcff1 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -1277,6 +1277,7 @@ enum nl80211_channel_type { * @NL80211_BSS_SIGNAL_UNSPEC: signal strength of the probe response/beacon * in unspecified units, scaled to 0..100 (u8) * @NL80211_BSS_STATUS: status, if this BSS is "used" + * @NL80211_BSS_SEEN_MS_AGO: age of this BSS entry in ms * @__NL80211_BSS_AFTER_LAST: internal * @NL80211_BSS_MAX: highest BSS attribute */ @@ -1291,6 +1292,7 @@ enum nl80211_bss { NL80211_BSS_SIGNAL_MBM, NL80211_BSS_SIGNAL_UNSPEC, NL80211_BSS_STATUS, + NL80211_BSS_SEEN_MS_AGO, /* keep last */ __NL80211_BSS_AFTER_LAST, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index eddab097435c..e0ecc9f153d4 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3105,6 +3105,8 @@ static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); + NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, + jiffies_to_msecs(jiffies - intbss->ts)); switch (rdev->wiphy.signal_type) { case CFG80211_SIGNAL_TYPE_MBM: -- cgit v1.2.3 From 125a77ed9fbd21d1277f53e9ed6b39ad3d34e613 Mon Sep 17 00:00:00 2001 From: Brian Haley Date: Wed, 7 Oct 2009 13:57:10 -0700 Subject: IPv6: Fix 6RD build error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix build error introduced in commit fa857afcf - ipv6 sit: 6rd (IPv6 Rapid Deployment) Support. Struct in6_addr is the issue. I'm only seeing this on x86_64 systems, not on 32-bit with same IPv6 config options, so it could be there's a missing forward declaration somewhere, but including the correct header file fixes the problem too. CC [M] net/ipv6/ip6_tunnel.o In file included from net/ipv6/ip6_tunnel.c:31: include/linux/if_tunnel.h:59: error: field ‘prefix’ has incomplete type make[2]: *** [net/ipv6/ip6_tunnel.o] Error 1 make[1]: *** [net/ipv6] Error 2 Signed-off-by: Brian Haley Signed-off-by: David S. Miller --- include/linux/if_tunnel.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h index c53c8e016940..8d76cb4c86fa 100644 --- a/include/linux/if_tunnel.h +++ b/include/linux/if_tunnel.h @@ -5,6 +5,7 @@ #ifdef __KERNEL__ #include +#include #endif #define SIOCGETTUNNEL (SIOCDEVPRIVATE + 0) -- cgit v1.2.3 From f86dcc5aa8c7908f2c287e7a211228df599e3e71 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 7 Oct 2009 00:37:59 +0000 Subject: udp: dynamically size hash tables at boot time UDP_HTABLE_SIZE was initialy defined to 128, which is a bit small for several setups. 4000 active UDP sockets -> 32 sockets per chain in average. An incoming frame has to lookup all sockets to find best match, so long chains hurt latency. Instead of a fixed size hash table that cant be perfect for every needs, let UDP stack choose its table size at boot time like tcp/ip route, using alloc_large_system_hash() helper Add an optional boot parameter, uhash_entries=x so that an admin can force a size between 256 and 65536 if needed, like thash_entries and rhash_entries. dmesg logs two new lines : [ 0.647039] UDP hash table entries: 512 (order: 0, 4096 bytes) [ 0.647099] UDP Lite hash table entries: 512 (order: 0, 4096 bytes) Maximal size on 64bit arches would be 65536 slots, ie 1 MBytes for non debugging spinlocks. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- Documentation/kernel-parameters.txt | 3 ++ include/linux/udp.h | 6 +-- include/net/udp.h | 13 ++++-- net/ipv4/udp.c | 91 +++++++++++++++++++++++++++---------- net/ipv4/udplite.c | 4 +- net/ipv6/udp.c | 6 +-- 6 files changed, 87 insertions(+), 36 deletions(-) (limited to 'include/linux') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 6fa7292947e5..02df20be7764 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2589,6 +2589,9 @@ and is between 256 and 4096 characters. It is defined in the file uart6850= [HW,OSS] Format: , + uhash_entries= [KNL,NET] + Set number of hash buckets for UDP/UDP-Lite connections + uhci-hcd.ignore_oc= [USB] Ignore overcurrent events (default N). Some badly-designed motherboards generate lots of diff --git a/include/linux/udp.h b/include/linux/udp.h index 0cf5c4c0ec81..832361e3e596 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -45,11 +45,11 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb) return (struct udphdr *)skb_transport_header(skb); } -#define UDP_HTABLE_SIZE 128 +#define UDP_HTABLE_SIZE_MIN (CONFIG_BASE_SMALL ? 128 : 256) -static inline int udp_hashfn(struct net *net, const unsigned num) +static inline int udp_hashfn(struct net *net, unsigned num, unsigned mask) { - return (num + net_hash_mix(net)) & (UDP_HTABLE_SIZE - 1); + return (num + net_hash_mix(net)) & mask; } struct udp_sock { diff --git a/include/net/udp.h b/include/net/udp.h index f98abd2ce709..22aa2e7eb1d7 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -54,12 +54,19 @@ struct udp_hslot { struct hlist_nulls_head head; spinlock_t lock; } __attribute__((aligned(2 * sizeof(long)))); + struct udp_table { - struct udp_hslot hash[UDP_HTABLE_SIZE]; + struct udp_hslot *hash; + unsigned int mask; + unsigned int log; }; extern struct udp_table udp_table; -extern void udp_table_init(struct udp_table *); - +extern void udp_table_init(struct udp_table *, const char *); +static inline struct udp_hslot *udp_hashslot(struct udp_table *table, + struct net *net, unsigned num) +{ + return &table->hash[udp_hashfn(net, num, table->mask)]; +} /* Note: this must match 'valbool' in sock_setsockopt */ #define UDP_CSUM_NOXMIT 1 diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 6ec6a8a4a224..194bcdc6d9fc 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -106,7 +106,7 @@ #include #include "udp_impl.h" -struct udp_table udp_table; +struct udp_table udp_table __read_mostly; EXPORT_SYMBOL(udp_table); int sysctl_udp_mem[3] __read_mostly; @@ -121,14 +121,16 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min); atomic_t udp_memory_allocated; EXPORT_SYMBOL(udp_memory_allocated); -#define PORTS_PER_CHAIN (65536 / UDP_HTABLE_SIZE) +#define MAX_UDP_PORTS 65536 +#define PORTS_PER_CHAIN (MAX_UDP_PORTS / UDP_HTABLE_SIZE_MIN) static int udp_lib_lport_inuse(struct net *net, __u16 num, const struct udp_hslot *hslot, unsigned long *bitmap, struct sock *sk, int (*saddr_comp)(const struct sock *sk1, - const struct sock *sk2)) + const struct sock *sk2), + unsigned int log) { struct sock *sk2; struct hlist_nulls_node *node; @@ -142,8 +144,7 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num, || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && (*saddr_comp)(sk, sk2)) { if (bitmap) - __set_bit(sk2->sk_hash / UDP_HTABLE_SIZE, - bitmap); + __set_bit(sk2->sk_hash >> log, bitmap); else return 1; } @@ -180,13 +181,15 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, /* * force rand to be an odd multiple of UDP_HTABLE_SIZE */ - rand = (rand | 1) * UDP_HTABLE_SIZE; - for (last = first + UDP_HTABLE_SIZE; first != last; first++) { - hslot = &udptable->hash[udp_hashfn(net, first)]; + rand = (rand | 1) * (udptable->mask + 1); + for (last = first + udptable->mask + 1; + first != last; + first++) { + hslot = udp_hashslot(udptable, net, first); bitmap_zero(bitmap, PORTS_PER_CHAIN); spin_lock_bh(&hslot->lock); udp_lib_lport_inuse(net, snum, hslot, bitmap, sk, - saddr_comp); + saddr_comp, udptable->log); snum = first; /* @@ -196,7 +199,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, */ do { if (low <= snum && snum <= high && - !test_bit(snum / UDP_HTABLE_SIZE, bitmap)) + !test_bit(snum >> udptable->log, bitmap)) goto found; snum += rand; } while (snum != first); @@ -204,9 +207,10 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, } goto fail; } else { - hslot = &udptable->hash[udp_hashfn(net, snum)]; + hslot = udp_hashslot(udptable, net, snum); spin_lock_bh(&hslot->lock); - if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp)) + if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, + saddr_comp, 0)) goto fail_unlock; } found: @@ -283,7 +287,7 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, struct sock *sk, *result; struct hlist_nulls_node *node; unsigned short hnum = ntohs(dport); - unsigned int hash = udp_hashfn(net, hnum); + unsigned int hash = udp_hashfn(net, hnum, udptable->mask); struct udp_hslot *hslot = &udptable->hash[hash]; int score, badness; @@ -1013,8 +1017,8 @@ void udp_lib_unhash(struct sock *sk) { if (sk_hashed(sk)) { struct udp_table *udptable = sk->sk_prot->h.udp_table; - unsigned int hash = udp_hashfn(sock_net(sk), sk->sk_hash); - struct udp_hslot *hslot = &udptable->hash[hash]; + struct udp_hslot *hslot = udp_hashslot(udptable, sock_net(sk), + sk->sk_hash); spin_lock_bh(&hslot->lock); if (sk_nulls_del_node_init_rcu(sk)) { @@ -1169,7 +1173,7 @@ static int __udp4_lib_mcast_deliver(struct net *net, struct sk_buff *skb, struct udp_table *udptable) { struct sock *sk; - struct udp_hslot *hslot = &udptable->hash[udp_hashfn(net, ntohs(uh->dest))]; + struct udp_hslot *hslot = udp_hashslot(udptable, net, ntohs(uh->dest)); int dif; spin_lock(&hslot->lock); @@ -1609,9 +1613,14 @@ static struct sock *udp_get_first(struct seq_file *seq, int start) struct udp_iter_state *state = seq->private; struct net *net = seq_file_net(seq); - for (state->bucket = start; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) { + for (state->bucket = start; state->bucket <= state->udp_table->mask; + ++state->bucket) { struct hlist_nulls_node *node; struct udp_hslot *hslot = &state->udp_table->hash[state->bucket]; + + if (hlist_nulls_empty(&hslot->head)) + continue; + spin_lock_bh(&hslot->lock); sk_nulls_for_each(sk, node, &hslot->head) { if (!net_eq(sock_net(sk), net)) @@ -1636,7 +1645,7 @@ static struct sock *udp_get_next(struct seq_file *seq, struct sock *sk) } while (sk && (!net_eq(sock_net(sk), net) || sk->sk_family != state->family)); if (!sk) { - if (state->bucket < UDP_HTABLE_SIZE) + if (state->bucket <= state->udp_table->mask) spin_unlock_bh(&state->udp_table->hash[state->bucket].lock); return udp_get_first(seq, state->bucket + 1); } @@ -1656,7 +1665,7 @@ static struct sock *udp_get_idx(struct seq_file *seq, loff_t pos) static void *udp_seq_start(struct seq_file *seq, loff_t *pos) { struct udp_iter_state *state = seq->private; - state->bucket = UDP_HTABLE_SIZE; + state->bucket = MAX_UDP_PORTS; return *pos ? udp_get_idx(seq, *pos-1) : SEQ_START_TOKEN; } @@ -1678,7 +1687,7 @@ static void udp_seq_stop(struct seq_file *seq, void *v) { struct udp_iter_state *state = seq->private; - if (state->bucket < UDP_HTABLE_SIZE) + if (state->bucket <= state->udp_table->mask) spin_unlock_bh(&state->udp_table->hash[state->bucket].lock); } @@ -1738,7 +1747,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, __u16 destp = ntohs(inet->dport); __u16 srcp = ntohs(inet->sport); - seq_printf(f, "%4d: %08X:%04X %08X:%04X" + seq_printf(f, "%5d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n", bucket, src, srcp, dest, destp, sp->sk_state, sk_wmem_alloc_get(sp), @@ -1804,11 +1813,43 @@ void udp4_proc_exit(void) } #endif /* CONFIG_PROC_FS */ -void __init udp_table_init(struct udp_table *table) +static __initdata unsigned long uhash_entries; +static int __init set_uhash_entries(char *str) { - int i; + if (!str) + return 0; + uhash_entries = simple_strtoul(str, &str, 0); + if (uhash_entries && uhash_entries < UDP_HTABLE_SIZE_MIN) + uhash_entries = UDP_HTABLE_SIZE_MIN; + return 1; +} +__setup("uhash_entries=", set_uhash_entries); - for (i = 0; i < UDP_HTABLE_SIZE; i++) { +void __init udp_table_init(struct udp_table *table, const char *name) +{ + unsigned int i; + + if (!CONFIG_BASE_SMALL) + table->hash = alloc_large_system_hash(name, + sizeof(struct udp_hslot), + uhash_entries, + 21, /* one slot per 2 MB */ + 0, + &table->log, + &table->mask, + 64 * 1024); + /* + * Make sure hash table has the minimum size + */ + if (CONFIG_BASE_SMALL || table->mask < UDP_HTABLE_SIZE_MIN - 1) { + table->hash = kmalloc(UDP_HTABLE_SIZE_MIN * + sizeof(struct udp_hslot), GFP_KERNEL); + if (!table->hash) + panic(name); + table->log = ilog2(UDP_HTABLE_SIZE_MIN); + table->mask = UDP_HTABLE_SIZE_MIN - 1; + } + for (i = 0; i <= table->mask; i++) { INIT_HLIST_NULLS_HEAD(&table->hash[i].head, i); spin_lock_init(&table->hash[i].lock); } @@ -1818,7 +1859,7 @@ void __init udp_init(void) { unsigned long nr_pages, limit; - udp_table_init(&udp_table); + udp_table_init(&udp_table, "UDP"); /* Set the pressure threshold up by the same strategy of TCP. It is a * fraction of global memory that is up to 1/2 at 256 MB, decreasing * toward zero with the amount of memory, with a floor of 128 pages. diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c index 95248d7f75ec..470c504b9554 100644 --- a/net/ipv4/udplite.c +++ b/net/ipv4/udplite.c @@ -12,7 +12,7 @@ */ #include "udp_impl.h" -struct udp_table udplite_table; +struct udp_table udplite_table __read_mostly; EXPORT_SYMBOL(udplite_table); static int udplite_rcv(struct sk_buff *skb) @@ -110,7 +110,7 @@ static inline int udplite4_proc_init(void) void __init udplite4_register(void) { - udp_table_init(&udplite_table); + udp_table_init(&udplite_table, "UDP-Lite"); if (proto_register(&udplite_prot, 1)) goto out_register_err; diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index c6a303ec834c..ff778c172ef2 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -132,7 +132,7 @@ static struct sock *__udp6_lib_lookup(struct net *net, struct sock *sk, *result; struct hlist_nulls_node *node; unsigned short hnum = ntohs(dport); - unsigned int hash = udp_hashfn(net, hnum); + unsigned int hash = udp_hashfn(net, hnum, udptable->mask); struct udp_hslot *hslot = &udptable->hash[hash]; int score, badness; @@ -452,7 +452,7 @@ static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb, { struct sock *sk, *sk2; const struct udphdr *uh = udp_hdr(skb); - struct udp_hslot *hslot = &udptable->hash[udp_hashfn(net, ntohs(uh->dest))]; + struct udp_hslot *hslot = udp_hashslot(udptable, net, ntohs(uh->dest)); int dif; spin_lock(&hslot->lock); @@ -1197,7 +1197,7 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket destp = ntohs(inet->dport); srcp = ntohs(inet->sport); seq_printf(seq, - "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " + "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", bucket, src->s6_addr32[0], src->s6_addr32[1], -- cgit v1.2.3 From 3758bf25db8caeec667e4e56e030da0ec3060529 Mon Sep 17 00:00:00 2001 From: Anant Gole Date: Wed, 7 Oct 2009 02:59:47 +0000 Subject: can: add TI CAN (HECC) driver TI HECC (High End CAN Controller) module is found on many TI devices. It has 32 hardware mailboxes with full implementation of CAN protocol 2.0B with bus speeds up to 1Mbps. Specifications of the module are available on TI web Signed-off-by: Anant Gole Signed-off-by: David S. Miller --- drivers/net/can/Kconfig | 7 + drivers/net/can/Makefile | 1 + drivers/net/can/ti_hecc.c | 1006 ++++++++++++++++++++++++++++++++++ include/linux/can/platform/ti_hecc.h | 40 ++ 4 files changed, 1054 insertions(+) create mode 100644 drivers/net/can/ti_hecc.c create mode 100644 include/linux/can/platform/ti_hecc.h (limited to 'include/linux') diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index df32c109b7ac..26d77cc0ded7 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -95,6 +95,13 @@ config CAN_AT91 ---help--- This is a driver for the SoC CAN controller in Atmel's AT91SAM9263. +config CAN_TI_HECC + depends on CAN_DEV && ARCH_OMAP3 + tristate "TI High End CAN Controller" + ---help--- + Driver for TI HECC (High End CAN Controller) module found on many + TI devices. The device specifications are available from www.ti.com + config CAN_DEBUG_DEVICES bool "CAN devices debugging messages" depends on CAN diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile index 0dea62721f2f..31f4ab5df28b 100644 --- a/drivers/net/can/Makefile +++ b/drivers/net/can/Makefile @@ -11,5 +11,6 @@ obj-y += usb/ obj-$(CONFIG_CAN_SJA1000) += sja1000/ obj-$(CONFIG_CAN_AT91) += at91_can.o +obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c new file mode 100644 index 000000000000..814e6c5c6386 --- /dev/null +++ b/drivers/net/can/ti_hecc.c @@ -0,0 +1,1006 @@ +/* + * TI HECC (CAN) device driver + * + * This driver supports TI's HECC (High End CAN Controller module) and the + * specs for the same is available at + * + * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed as is WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +/* + * Your platform definitions should specify module ram offsets and interrupt + * number to use as follows: + * + * static struct ti_hecc_platform_data am3517_evm_hecc_pdata = { + * .scc_hecc_offset = 0, + * .scc_ram_offset = 0x3000, + * .hecc_ram_offset = 0x3000, + * .mbx_offset = 0x2000, + * .int_line = 0, + * .revision = 1, + * }; + * + * Please see include/can/platform/ti_hecc.h for description of above fields + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#define DRV_NAME "ti_hecc" +#define HECC_MODULE_VERSION "0.7" +MODULE_VERSION(HECC_MODULE_VERSION); +#define DRV_DESC "TI High End CAN Controller Driver " HECC_MODULE_VERSION + +/* TX / RX Mailbox Configuration */ +#define HECC_MAX_MAILBOXES 32 /* hardware mailboxes - do not change */ +#define MAX_TX_PRIO 0x3F /* hardware value - do not change */ + +/* + * Important Note: TX mailbox configuration + * TX mailboxes should be restricted to the number of SKB buffers to avoid + * maintaining SKB buffers separately. TX mailboxes should be a power of 2 + * for the mailbox logic to work. Top mailbox numbers are reserved for RX + * and lower mailboxes for TX. + * + * HECC_MAX_TX_MBOX HECC_MB_TX_SHIFT + * 4 (default) 2 + * 8 3 + * 16 4 + */ +#define HECC_MB_TX_SHIFT 2 /* as per table above */ +#define HECC_MAX_TX_MBOX BIT(HECC_MB_TX_SHIFT) + +#if (HECC_MAX_TX_MBOX > CAN_ECHO_SKB_MAX) +#error "HECC: MAX TX mailboxes should be equal or less than CAN_ECHO_SKB_MAX" +#endif + +#define HECC_TX_PRIO_SHIFT (HECC_MB_TX_SHIFT) +#define HECC_TX_PRIO_MASK (MAX_TX_PRIO << HECC_MB_TX_SHIFT) +#define HECC_TX_MB_MASK (HECC_MAX_TX_MBOX - 1) +#define HECC_TX_MASK ((HECC_MAX_TX_MBOX - 1) | HECC_TX_PRIO_MASK) +#define HECC_TX_MBOX_MASK (~(BIT(HECC_MAX_TX_MBOX) - 1)) +#define HECC_DEF_NAPI_WEIGHT HECC_MAX_RX_MBOX + +/* + * Important Note: RX mailbox configuration + * RX mailboxes are further logically split into two - main and buffer + * mailboxes. The goal is to get all packets into main mailboxes as + * driven by mailbox number and receive priority (higher to lower) and + * buffer mailboxes are used to receive pkts while main mailboxes are being + * processed. This ensures in-order packet reception. + * + * Here are the recommended values for buffer mailbox. Note that RX mailboxes + * start after TX mailboxes: + * + * HECC_MAX_RX_MBOX HECC_RX_BUFFER_MBOX No of buffer mailboxes + * 28 12 8 + * 16 20 4 + */ + +#define HECC_MAX_RX_MBOX (HECC_MAX_MAILBOXES - HECC_MAX_TX_MBOX) +#define HECC_RX_BUFFER_MBOX 12 /* as per table above */ +#define HECC_RX_FIRST_MBOX (HECC_MAX_MAILBOXES - 1) +#define HECC_RX_HIGH_MBOX_MASK (~(BIT(HECC_RX_BUFFER_MBOX) - 1)) + +/* TI HECC module registers */ +#define HECC_CANME 0x0 /* Mailbox enable */ +#define HECC_CANMD 0x4 /* Mailbox direction */ +#define HECC_CANTRS 0x8 /* Transmit request set */ +#define HECC_CANTRR 0xC /* Transmit request */ +#define HECC_CANTA 0x10 /* Transmission acknowledge */ +#define HECC_CANAA 0x14 /* Abort acknowledge */ +#define HECC_CANRMP 0x18 /* Receive message pending */ +#define HECC_CANRML 0x1C /* Remote message lost */ +#define HECC_CANRFP 0x20 /* Remote frame pending */ +#define HECC_CANGAM 0x24 /* SECC only:Global acceptance mask */ +#define HECC_CANMC 0x28 /* Master control */ +#define HECC_CANBTC 0x2C /* Bit timing configuration */ +#define HECC_CANES 0x30 /* Error and status */ +#define HECC_CANTEC 0x34 /* Transmit error counter */ +#define HECC_CANREC 0x38 /* Receive error counter */ +#define HECC_CANGIF0 0x3C /* Global interrupt flag 0 */ +#define HECC_CANGIM 0x40 /* Global interrupt mask */ +#define HECC_CANGIF1 0x44 /* Global interrupt flag 1 */ +#define HECC_CANMIM 0x48 /* Mailbox interrupt mask */ +#define HECC_CANMIL 0x4C /* Mailbox interrupt level */ +#define HECC_CANOPC 0x50 /* Overwrite protection control */ +#define HECC_CANTIOC 0x54 /* Transmit I/O control */ +#define HECC_CANRIOC 0x58 /* Receive I/O control */ +#define HECC_CANLNT 0x5C /* HECC only: Local network time */ +#define HECC_CANTOC 0x60 /* HECC only: Time-out control */ +#define HECC_CANTOS 0x64 /* HECC only: Time-out status */ +#define HECC_CANTIOCE 0x68 /* SCC only:Enhanced TX I/O control */ +#define HECC_CANRIOCE 0x6C /* SCC only:Enhanced RX I/O control */ + +/* Mailbox registers */ +#define HECC_CANMID 0x0 +#define HECC_CANMCF 0x4 +#define HECC_CANMDL 0x8 +#define HECC_CANMDH 0xC + +#define HECC_SET_REG 0xFFFFFFFF +#define HECC_CANID_MASK 0x3FF /* 18 bits mask for extended id's */ +#define HECC_CCE_WAIT_COUNT 100 /* Wait for ~1 sec for CCE bit */ + +#define HECC_CANMC_SCM BIT(13) /* SCC compat mode */ +#define HECC_CANMC_CCR BIT(12) /* Change config request */ +#define HECC_CANMC_PDR BIT(11) /* Local Power down - for sleep mode */ +#define HECC_CANMC_ABO BIT(7) /* Auto Bus On */ +#define HECC_CANMC_STM BIT(6) /* Self test mode - loopback */ +#define HECC_CANMC_SRES BIT(5) /* Software reset */ + +#define HECC_CANTIOC_EN BIT(3) /* Enable CAN TX I/O pin */ +#define HECC_CANRIOC_EN BIT(3) /* Enable CAN RX I/O pin */ + +#define HECC_CANMID_IDE BIT(31) /* Extended frame format */ +#define HECC_CANMID_AME BIT(30) /* Acceptance mask enable */ +#define HECC_CANMID_AAM BIT(29) /* Auto answer mode */ + +#define HECC_CANES_FE BIT(24) /* form error */ +#define HECC_CANES_BE BIT(23) /* bit error */ +#define HECC_CANES_SA1 BIT(22) /* stuck at dominant error */ +#define HECC_CANES_CRCE BIT(21) /* CRC error */ +#define HECC_CANES_SE BIT(20) /* stuff bit error */ +#define HECC_CANES_ACKE BIT(19) /* ack error */ +#define HECC_CANES_BO BIT(18) /* Bus off status */ +#define HECC_CANES_EP BIT(17) /* Error passive status */ +#define HECC_CANES_EW BIT(16) /* Error warning status */ +#define HECC_CANES_SMA BIT(5) /* suspend mode ack */ +#define HECC_CANES_CCE BIT(4) /* Change config enabled */ +#define HECC_CANES_PDA BIT(3) /* Power down mode ack */ + +#define HECC_CANBTC_SAM BIT(7) /* sample points */ + +#define HECC_BUS_ERROR (HECC_CANES_FE | HECC_CANES_BE |\ + HECC_CANES_CRCE | HECC_CANES_SE |\ + HECC_CANES_ACKE) + +#define HECC_CANMCF_RTR BIT(4) /* Remote transmit request */ + +#define HECC_CANGIF_MAIF BIT(17) /* Message alarm interrupt */ +#define HECC_CANGIF_TCOIF BIT(16) /* Timer counter overflow int */ +#define HECC_CANGIF_GMIF BIT(15) /* Global mailbox interrupt */ +#define HECC_CANGIF_AAIF BIT(14) /* Abort ack interrupt */ +#define HECC_CANGIF_WDIF BIT(13) /* Write denied interrupt */ +#define HECC_CANGIF_WUIF BIT(12) /* Wake up interrupt */ +#define HECC_CANGIF_RMLIF BIT(11) /* Receive message lost interrupt */ +#define HECC_CANGIF_BOIF BIT(10) /* Bus off interrupt */ +#define HECC_CANGIF_EPIF BIT(9) /* Error passive interrupt */ +#define HECC_CANGIF_WLIF BIT(8) /* Warning level interrupt */ +#define HECC_CANGIF_MBOX_MASK 0x1F /* Mailbox number mask */ +#define HECC_CANGIM_I1EN BIT(1) /* Int line 1 enable */ +#define HECC_CANGIM_I0EN BIT(0) /* Int line 0 enable */ +#define HECC_CANGIM_DEF_MASK 0x700 /* only busoff/warning/passive */ +#define HECC_CANGIM_SIL BIT(2) /* system interrupts to int line 1 */ + +/* CAN Bittiming constants as per HECC specs */ +static struct can_bittiming_const ti_hecc_bittiming_const = { + .name = DRV_NAME, + .tseg1_min = 1, + .tseg1_max = 16, + .tseg2_min = 1, + .tseg2_max = 8, + .sjw_max = 4, + .brp_min = 1, + .brp_max = 256, + .brp_inc = 1, +}; + +struct ti_hecc_priv { + struct can_priv can; /* MUST be first member/field */ + struct napi_struct napi; + struct net_device *ndev; + struct clk *clk; + void __iomem *base; + u32 scc_ram_offset; + u32 hecc_ram_offset; + u32 mbx_offset; + u32 int_line; + spinlock_t mbx_lock; /* CANME register needs protection */ + u32 tx_head; + u32 tx_tail; + u32 rx_next; +}; + +static inline int get_tx_head_mb(struct ti_hecc_priv *priv) +{ + return priv->tx_head & HECC_TX_MB_MASK; +} + +static inline int get_tx_tail_mb(struct ti_hecc_priv *priv) +{ + return priv->tx_tail & HECC_TX_MB_MASK; +} + +static inline int get_tx_head_prio(struct ti_hecc_priv *priv) +{ + return (priv->tx_head >> HECC_TX_PRIO_SHIFT) & MAX_TX_PRIO; +} + +static inline void hecc_write_lam(struct ti_hecc_priv *priv, u32 mbxno, u32 val) +{ + __raw_writel(val, priv->base + priv->hecc_ram_offset + mbxno * 4); +} + +static inline void hecc_write_mbx(struct ti_hecc_priv *priv, u32 mbxno, + u32 reg, u32 val) +{ + __raw_writel(val, priv->base + priv->mbx_offset + mbxno * 0x10 + + reg); +} + +static inline u32 hecc_read_mbx(struct ti_hecc_priv *priv, u32 mbxno, u32 reg) +{ + return __raw_readl(priv->base + priv->mbx_offset + mbxno * 0x10 + + reg); +} + +static inline void hecc_write(struct ti_hecc_priv *priv, u32 reg, u32 val) +{ + __raw_writel(val, priv->base + reg); +} + +static inline u32 hecc_read(struct ti_hecc_priv *priv, int reg) +{ + return __raw_readl(priv->base + reg); +} + +static inline void hecc_set_bit(struct ti_hecc_priv *priv, int reg, + u32 bit_mask) +{ + hecc_write(priv, reg, hecc_read(priv, reg) | bit_mask); +} + +static inline void hecc_clear_bit(struct ti_hecc_priv *priv, int reg, + u32 bit_mask) +{ + hecc_write(priv, reg, hecc_read(priv, reg) & ~bit_mask); +} + +static inline u32 hecc_get_bit(struct ti_hecc_priv *priv, int reg, u32 bit_mask) +{ + return (hecc_read(priv, reg) & bit_mask) ? 1 : 0; +} + +static int ti_hecc_get_state(const struct net_device *ndev, + enum can_state *state) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + + *state = priv->can.state; + return 0; +} + +static int ti_hecc_set_btc(struct ti_hecc_priv *priv) +{ + struct can_bittiming *bit_timing = &priv->can.bittiming; + u32 can_btc; + + can_btc = (bit_timing->phase_seg2 - 1) & 0x7; + can_btc |= ((bit_timing->phase_seg1 + bit_timing->prop_seg - 1) + & 0xF) << 3; + if (priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) { + if (bit_timing->brp > 4) + can_btc |= HECC_CANBTC_SAM; + else + dev_warn(priv->ndev->dev.parent, "WARN: Triple" \ + "sampling not set due to h/w limitations"); + } + can_btc |= ((bit_timing->sjw - 1) & 0x3) << 8; + can_btc |= ((bit_timing->brp - 1) & 0xFF) << 16; + + /* ERM being set to 0 by default meaning resync at falling edge */ + + hecc_write(priv, HECC_CANBTC, can_btc); + dev_info(priv->ndev->dev.parent, "setting CANBTC=%#x\n", can_btc); + + return 0; +} + +static void ti_hecc_reset(struct net_device *ndev) +{ + u32 cnt; + struct ti_hecc_priv *priv = netdev_priv(ndev); + + dev_dbg(ndev->dev.parent, "resetting hecc ...\n"); + hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_SRES); + + /* Set change control request and wait till enabled */ + hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_CCR); + + /* + * INFO: It has been observed that at times CCE bit may not be + * set and hw seems to be ok even if this bit is not set so + * timing out with a timing of 1ms to respect the specs + */ + cnt = HECC_CCE_WAIT_COUNT; + while (!hecc_get_bit(priv, HECC_CANES, HECC_CANES_CCE) && cnt != 0) { + --cnt; + udelay(10); + } + + /* + * Note: On HECC, BTC can be programmed only in initialization mode, so + * it is expected that the can bittiming parameters are set via ip + * utility before the device is opened + */ + ti_hecc_set_btc(priv); + + /* Clear CCR (and CANMC register) and wait for CCE = 0 enable */ + hecc_write(priv, HECC_CANMC, 0); + + /* + * INFO: CAN net stack handles bus off and hence disabling auto-bus-on + * hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_ABO); + */ + + /* + * INFO: It has been observed that at times CCE bit may not be + * set and hw seems to be ok even if this bit is not set so + */ + cnt = HECC_CCE_WAIT_COUNT; + while (hecc_get_bit(priv, HECC_CANES, HECC_CANES_CCE) && cnt != 0) { + --cnt; + udelay(10); + } + + /* Enable TX and RX I/O Control pins */ + hecc_write(priv, HECC_CANTIOC, HECC_CANTIOC_EN); + hecc_write(priv, HECC_CANRIOC, HECC_CANRIOC_EN); + + /* Clear registers for clean operation */ + hecc_write(priv, HECC_CANTA, HECC_SET_REG); + hecc_write(priv, HECC_CANRMP, HECC_SET_REG); + hecc_write(priv, HECC_CANGIF0, HECC_SET_REG); + hecc_write(priv, HECC_CANGIF1, HECC_SET_REG); + hecc_write(priv, HECC_CANME, 0); + hecc_write(priv, HECC_CANMD, 0); + + /* SCC compat mode NOT supported (and not needed too) */ + hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_SCM); +} + +static void ti_hecc_start(struct net_device *ndev) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + u32 cnt, mbxno, mbx_mask; + + /* put HECC in initialization mode and set btc */ + ti_hecc_reset(ndev); + + priv->tx_head = priv->tx_tail = HECC_TX_MASK; + priv->rx_next = HECC_RX_FIRST_MBOX; + + /* Enable local and global acceptance mask registers */ + hecc_write(priv, HECC_CANGAM, HECC_SET_REG); + + /* Prepare configured mailboxes to receive messages */ + for (cnt = 0; cnt < HECC_MAX_RX_MBOX; cnt++) { + mbxno = HECC_MAX_MAILBOXES - 1 - cnt; + mbx_mask = BIT(mbxno); + hecc_clear_bit(priv, HECC_CANME, mbx_mask); + hecc_write_mbx(priv, mbxno, HECC_CANMID, HECC_CANMID_AME); + hecc_write_lam(priv, mbxno, HECC_SET_REG); + hecc_set_bit(priv, HECC_CANMD, mbx_mask); + hecc_set_bit(priv, HECC_CANME, mbx_mask); + hecc_set_bit(priv, HECC_CANMIM, mbx_mask); + } + + /* Prevent message over-write & Enable interrupts */ + hecc_write(priv, HECC_CANOPC, HECC_SET_REG); + if (priv->int_line) { + hecc_write(priv, HECC_CANMIL, HECC_SET_REG); + hecc_write(priv, HECC_CANGIM, HECC_CANGIM_DEF_MASK | + HECC_CANGIM_I1EN | HECC_CANGIM_SIL); + } else { + hecc_write(priv, HECC_CANMIL, 0); + hecc_write(priv, HECC_CANGIM, + HECC_CANGIM_DEF_MASK | HECC_CANGIM_I0EN); + } + priv->can.state = CAN_STATE_ERROR_ACTIVE; +} + +static void ti_hecc_stop(struct net_device *ndev) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + + /* Disable interrupts and disable mailboxes */ + hecc_write(priv, HECC_CANGIM, 0); + hecc_write(priv, HECC_CANMIM, 0); + hecc_write(priv, HECC_CANME, 0); + priv->can.state = CAN_STATE_STOPPED; +} + +static int ti_hecc_do_set_mode(struct net_device *ndev, enum can_mode mode) +{ + int ret = 0; + + switch (mode) { + case CAN_MODE_START: + ti_hecc_start(ndev); + netif_wake_queue(ndev); + break; + default: + ret = -EOPNOTSUPP; + break; + } + + return ret; +} + +/* + * ti_hecc_xmit: HECC Transmit + * + * The transmit mailboxes start from 0 to HECC_MAX_TX_MBOX. In HECC the + * priority of the mailbox for tranmission is dependent upon priority setting + * field in mailbox registers. The mailbox with highest value in priority field + * is transmitted first. Only when two mailboxes have the same value in + * priority field the highest numbered mailbox is transmitted first. + * + * To utilize the HECC priority feature as described above we start with the + * highest numbered mailbox with highest priority level and move on to the next + * mailbox with the same priority level and so on. Once we loop through all the + * transmit mailboxes we choose the next priority level (lower) and so on + * until we reach the lowest priority level on the lowest numbered mailbox + * when we stop transmission until all mailboxes are transmitted and then + * restart at highest numbered mailbox with highest priority. + * + * Two counters (head and tail) are used to track the next mailbox to transmit + * and to track the echo buffer for already transmitted mailbox. The queue + * is stopped when all the mailboxes are busy or when there is a priority + * value roll-over happens. + */ +static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + struct can_frame *cf = (struct can_frame *)skb->data; + u32 mbxno, mbx_mask, data; + unsigned long flags; + + mbxno = get_tx_head_mb(priv); + mbx_mask = BIT(mbxno); + spin_lock_irqsave(&priv->mbx_lock, flags); + if (unlikely(hecc_read(priv, HECC_CANME) & mbx_mask)) { + spin_unlock_irqrestore(&priv->mbx_lock, flags); + netif_stop_queue(ndev); + dev_err(priv->ndev->dev.parent, + "BUG: TX mbx not ready tx_head=%08X, tx_tail=%08X\n", + priv->tx_head, priv->tx_tail); + return NETDEV_TX_BUSY; + } + spin_unlock_irqrestore(&priv->mbx_lock, flags); + + /* Prepare mailbox for transmission */ + data = min_t(u8, cf->can_dlc, 8); + if (cf->can_id & CAN_RTR_FLAG) /* Remote transmission request */ + data |= HECC_CANMCF_RTR; + data |= get_tx_head_prio(priv) << 8; + hecc_write_mbx(priv, mbxno, HECC_CANMCF, data); + + if (cf->can_id & CAN_EFF_FLAG) /* Extended frame format */ + data = (cf->can_id & CAN_EFF_MASK) | HECC_CANMID_IDE; + else /* Standard frame format */ + data = (cf->can_id & CAN_SFF_MASK) << 18; + hecc_write_mbx(priv, mbxno, HECC_CANMID, data); + hecc_write_mbx(priv, mbxno, HECC_CANMDL, + be32_to_cpu(*(u32 *)(cf->data))); + if (cf->can_dlc > 4) + hecc_write_mbx(priv, mbxno, HECC_CANMDH, + be32_to_cpu(*(u32 *)(cf->data + 4))); + else + *(u32 *)(cf->data + 4) = 0; + can_put_echo_skb(skb, ndev, mbxno); + + spin_lock_irqsave(&priv->mbx_lock, flags); + --priv->tx_head; + if ((hecc_read(priv, HECC_CANME) & BIT(get_tx_head_mb(priv))) || + (priv->tx_head & HECC_TX_MASK) == HECC_TX_MASK) { + netif_stop_queue(ndev); + } + hecc_set_bit(priv, HECC_CANME, mbx_mask); + spin_unlock_irqrestore(&priv->mbx_lock, flags); + + hecc_clear_bit(priv, HECC_CANMD, mbx_mask); + hecc_set_bit(priv, HECC_CANMIM, mbx_mask); + hecc_write(priv, HECC_CANTRS, mbx_mask); + + return NETDEV_TX_OK; +} + +static int ti_hecc_rx_pkt(struct ti_hecc_priv *priv, int mbxno) +{ + struct net_device_stats *stats = &priv->ndev->stats; + struct can_frame *cf; + struct sk_buff *skb; + u32 data, mbx_mask; + unsigned long flags; + + skb = netdev_alloc_skb(priv->ndev, sizeof(struct can_frame)); + if (!skb) { + if (printk_ratelimit()) + dev_err(priv->ndev->dev.parent, + "ti_hecc_rx_pkt: netdev_alloc_skb() failed\n"); + return -ENOMEM; + } + skb->protocol = __constant_htons(ETH_P_CAN); + skb->ip_summed = CHECKSUM_UNNECESSARY; + + mbx_mask = BIT(mbxno); + cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); + data = hecc_read_mbx(priv, mbxno, HECC_CANMID); + if (data & HECC_CANMID_IDE) + cf->can_id = (data & CAN_EFF_MASK) | CAN_EFF_FLAG; + else + cf->can_id = (data >> 18) & CAN_SFF_MASK; + data = hecc_read_mbx(priv, mbxno, HECC_CANMCF); + if (data & HECC_CANMCF_RTR) + cf->can_id |= CAN_RTR_FLAG; + cf->can_dlc = data & 0xF; + data = hecc_read_mbx(priv, mbxno, HECC_CANMDL); + *(u32 *)(cf->data) = cpu_to_be32(data); + if (cf->can_dlc > 4) { + data = hecc_read_mbx(priv, mbxno, HECC_CANMDH); + *(u32 *)(cf->data + 4) = cpu_to_be32(data); + } else { + *(u32 *)(cf->data + 4) = 0; + } + spin_lock_irqsave(&priv->mbx_lock, flags); + hecc_clear_bit(priv, HECC_CANME, mbx_mask); + hecc_write(priv, HECC_CANRMP, mbx_mask); + /* enable mailbox only if it is part of rx buffer mailboxes */ + if (priv->rx_next < HECC_RX_BUFFER_MBOX) + hecc_set_bit(priv, HECC_CANME, mbx_mask); + spin_unlock_irqrestore(&priv->mbx_lock, flags); + + stats->rx_bytes += cf->can_dlc; + netif_receive_skb(skb); + stats->rx_packets++; + + return 0; +} + +/* + * ti_hecc_rx_poll - HECC receive pkts + * + * The receive mailboxes start from highest numbered mailbox till last xmit + * mailbox. On CAN frame reception the hardware places the data into highest + * numbered mailbox that matches the CAN ID filter. Since all receive mailboxes + * have same filtering (ALL CAN frames) packets will arrive in the highest + * available RX mailbox and we need to ensure in-order packet reception. + * + * To ensure the packets are received in the right order we logically divide + * the RX mailboxes into main and buffer mailboxes. Packets are received as per + * mailbox priotity (higher to lower) in the main bank and once it is full we + * disable further reception into main mailboxes. While the main mailboxes are + * processed in NAPI, further packets are received in buffer mailboxes. + * + * We maintain a RX next mailbox counter to process packets and once all main + * mailboxe packets are passed to the upper stack we enable all of them but + * continue to process packets received in buffer mailboxes. With each packet + * received from buffer mailbox we enable it immediately so as to handle the + * overflow from higher mailboxes. + */ +static int ti_hecc_rx_poll(struct napi_struct *napi, int quota) +{ + struct net_device *ndev = napi->dev; + struct ti_hecc_priv *priv = netdev_priv(ndev); + u32 num_pkts = 0; + u32 mbx_mask; + unsigned long pending_pkts, flags; + + if (!netif_running(ndev)) + return 0; + + while ((pending_pkts = hecc_read(priv, HECC_CANRMP)) && + num_pkts < quota) { + mbx_mask = BIT(priv->rx_next); /* next rx mailbox to process */ + if (mbx_mask & pending_pkts) { + if (ti_hecc_rx_pkt(priv, priv->rx_next) < 0) + return num_pkts; + ++num_pkts; + } else if (priv->rx_next > HECC_RX_BUFFER_MBOX) { + break; /* pkt not received yet */ + } + --priv->rx_next; + if (priv->rx_next == HECC_RX_BUFFER_MBOX) { + /* enable high bank mailboxes */ + spin_lock_irqsave(&priv->mbx_lock, flags); + mbx_mask = hecc_read(priv, HECC_CANME); + mbx_mask |= HECC_RX_HIGH_MBOX_MASK; + hecc_write(priv, HECC_CANME, mbx_mask); + spin_unlock_irqrestore(&priv->mbx_lock, flags); + } else if (priv->rx_next == HECC_MAX_TX_MBOX - 1) { + priv->rx_next = HECC_RX_FIRST_MBOX; + break; + } + } + + /* Enable packet interrupt if all pkts are handled */ + if (hecc_read(priv, HECC_CANRMP) == 0) { + napi_complete(napi); + /* Re-enable RX mailbox interrupts */ + mbx_mask = hecc_read(priv, HECC_CANMIM); + mbx_mask |= HECC_TX_MBOX_MASK; + hecc_write(priv, HECC_CANMIM, mbx_mask); + } + + return num_pkts; +} + +static int ti_hecc_error(struct net_device *ndev, int int_status, + int err_status) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + struct net_device_stats *stats = &ndev->stats; + struct can_frame *cf; + struct sk_buff *skb; + + /* propogate the error condition to the can stack */ + skb = netdev_alloc_skb(ndev, sizeof(struct can_frame)); + if (!skb) { + if (printk_ratelimit()) + dev_err(priv->ndev->dev.parent, + "ti_hecc_error: netdev_alloc_skb() failed\n"); + return -ENOMEM; + } + skb->protocol = __constant_htons(ETH_P_CAN); + skb->ip_summed = CHECKSUM_UNNECESSARY; + cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); + memset(cf, 0, sizeof(struct can_frame)); + cf->can_id = CAN_ERR_FLAG; + cf->can_dlc = CAN_ERR_DLC; + + if (int_status & HECC_CANGIF_WLIF) { /* warning level int */ + if ((int_status & HECC_CANGIF_BOIF) == 0) { + priv->can.state = CAN_STATE_ERROR_WARNING; + ++priv->can.can_stats.error_warning; + cf->can_id |= CAN_ERR_CRTL; + if (hecc_read(priv, HECC_CANTEC) > 96) + cf->data[1] |= CAN_ERR_CRTL_TX_WARNING; + if (hecc_read(priv, HECC_CANREC) > 96) + cf->data[1] |= CAN_ERR_CRTL_RX_WARNING; + } + hecc_set_bit(priv, HECC_CANES, HECC_CANES_EW); + dev_dbg(priv->ndev->dev.parent, "Error Warning interrupt\n"); + hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR); + } + + if (int_status & HECC_CANGIF_EPIF) { /* error passive int */ + if ((int_status & HECC_CANGIF_BOIF) == 0) { + priv->can.state = CAN_STATE_ERROR_PASSIVE; + ++priv->can.can_stats.error_passive; + cf->can_id |= CAN_ERR_CRTL; + if (hecc_read(priv, HECC_CANTEC) > 127) + cf->data[1] |= CAN_ERR_CRTL_TX_PASSIVE; + if (hecc_read(priv, HECC_CANREC) > 127) + cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE; + } + hecc_set_bit(priv, HECC_CANES, HECC_CANES_EP); + dev_dbg(priv->ndev->dev.parent, "Error passive interrupt\n"); + hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR); + } + + /* + * Need to check busoff condition in error status register too to + * ensure warning interrupts don't hog the system + */ + if ((int_status & HECC_CANGIF_BOIF) || (err_status & HECC_CANES_BO)) { + priv->can.state = CAN_STATE_BUS_OFF; + cf->can_id |= CAN_ERR_BUSOFF; + hecc_set_bit(priv, HECC_CANES, HECC_CANES_BO); + hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR); + /* Disable all interrupts in bus-off to avoid int hog */ + hecc_write(priv, HECC_CANGIM, 0); + can_bus_off(ndev); + } + + if (err_status & HECC_BUS_ERROR) { + ++priv->can.can_stats.bus_error; + cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_PROT; + cf->data[2] |= CAN_ERR_PROT_UNSPEC; + if (err_status & HECC_CANES_FE) { + hecc_set_bit(priv, HECC_CANES, HECC_CANES_FE); + cf->data[2] |= CAN_ERR_PROT_FORM; + } + if (err_status & HECC_CANES_BE) { + hecc_set_bit(priv, HECC_CANES, HECC_CANES_BE); + cf->data[2] |= CAN_ERR_PROT_BIT; + } + if (err_status & HECC_CANES_SE) { + hecc_set_bit(priv, HECC_CANES, HECC_CANES_SE); + cf->data[2] |= CAN_ERR_PROT_STUFF; + } + if (err_status & HECC_CANES_CRCE) { + hecc_set_bit(priv, HECC_CANES, HECC_CANES_CRCE); + cf->data[2] |= CAN_ERR_PROT_LOC_CRC_SEQ | + CAN_ERR_PROT_LOC_CRC_DEL; + } + if (err_status & HECC_CANES_ACKE) { + hecc_set_bit(priv, HECC_CANES, HECC_CANES_ACKE); + cf->data[2] |= CAN_ERR_PROT_LOC_ACK | + CAN_ERR_PROT_LOC_ACK_DEL; + } + } + + netif_receive_skb(skb); + stats->rx_packets++; + stats->rx_bytes += cf->can_dlc; + return 0; +} + +static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id) +{ + struct net_device *ndev = (struct net_device *)dev_id; + struct ti_hecc_priv *priv = netdev_priv(ndev); + struct net_device_stats *stats = &ndev->stats; + u32 mbxno, mbx_mask, int_status, err_status; + unsigned long ack, flags; + + int_status = hecc_read(priv, + (priv->int_line) ? HECC_CANGIF1 : HECC_CANGIF0); + + if (!int_status) + return IRQ_NONE; + + err_status = hecc_read(priv, HECC_CANES); + if (err_status & (HECC_BUS_ERROR | HECC_CANES_BO | + HECC_CANES_EP | HECC_CANES_EW)) + ti_hecc_error(ndev, int_status, err_status); + + if (int_status & HECC_CANGIF_GMIF) { + while (priv->tx_tail - priv->tx_head > 0) { + mbxno = get_tx_tail_mb(priv); + mbx_mask = BIT(mbxno); + if (!(mbx_mask & hecc_read(priv, HECC_CANTA))) + break; + hecc_clear_bit(priv, HECC_CANMIM, mbx_mask); + hecc_write(priv, HECC_CANTA, mbx_mask); + spin_lock_irqsave(&priv->mbx_lock, flags); + hecc_clear_bit(priv, HECC_CANME, mbx_mask); + spin_unlock_irqrestore(&priv->mbx_lock, flags); + stats->tx_bytes += hecc_read_mbx(priv, mbxno, + HECC_CANMCF) & 0xF; + stats->tx_packets++; + can_get_echo_skb(ndev, mbxno); + --priv->tx_tail; + } + + /* restart queue if wrap-up or if queue stalled on last pkt */ + if (((priv->tx_head == priv->tx_tail) && + ((priv->tx_head & HECC_TX_MASK) != HECC_TX_MASK)) || + (((priv->tx_tail & HECC_TX_MASK) == HECC_TX_MASK) && + ((priv->tx_head & HECC_TX_MASK) == HECC_TX_MASK))) + netif_wake_queue(ndev); + + /* Disable RX mailbox interrupts and let NAPI reenable them */ + if (hecc_read(priv, HECC_CANRMP)) { + ack = hecc_read(priv, HECC_CANMIM); + ack &= BIT(HECC_MAX_TX_MBOX) - 1; + hecc_write(priv, HECC_CANMIM, ack); + napi_schedule(&priv->napi); + } + } + + /* clear all interrupt conditions - read back to avoid spurious ints */ + if (priv->int_line) { + hecc_write(priv, HECC_CANGIF1, HECC_SET_REG); + int_status = hecc_read(priv, HECC_CANGIF1); + } else { + hecc_write(priv, HECC_CANGIF0, HECC_SET_REG); + int_status = hecc_read(priv, HECC_CANGIF0); + } + + return IRQ_HANDLED; +} + +static int ti_hecc_open(struct net_device *ndev) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + int err; + + err = request_irq(ndev->irq, ti_hecc_interrupt, IRQF_SHARED, + ndev->name, ndev); + if (err) { + dev_err(ndev->dev.parent, "error requesting interrupt\n"); + return err; + } + + /* Open common can device */ + err = open_candev(ndev); + if (err) { + dev_err(ndev->dev.parent, "open_candev() failed %d\n", err); + free_irq(ndev->irq, ndev); + return err; + } + + clk_enable(priv->clk); + ti_hecc_start(ndev); + napi_enable(&priv->napi); + netif_start_queue(ndev); + + return 0; +} + +static int ti_hecc_close(struct net_device *ndev) +{ + struct ti_hecc_priv *priv = netdev_priv(ndev); + + netif_stop_queue(ndev); + napi_disable(&priv->napi); + ti_hecc_stop(ndev); + free_irq(ndev->irq, ndev); + clk_disable(priv->clk); + close_candev(ndev); + + return 0; +} + +static const struct net_device_ops ti_hecc_netdev_ops = { + .ndo_open = ti_hecc_open, + .ndo_stop = ti_hecc_close, + .ndo_start_xmit = ti_hecc_xmit, +}; + +static int ti_hecc_probe(struct platform_device *pdev) +{ + struct net_device *ndev = (struct net_device *)0; + struct ti_hecc_priv *priv; + struct ti_hecc_platform_data *pdata; + struct resource *mem, *irq; + void __iomem *addr; + int err = -ENODEV; + + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, "No platform data\n"); + goto probe_exit; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "No mem resources\n"); + goto probe_exit; + } + irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq) { + dev_err(&pdev->dev, "No irq resource\n"); + goto probe_exit; + } + if (!request_mem_region(mem->start, resource_size(mem), pdev->name)) { + dev_err(&pdev->dev, "HECC region already claimed\n"); + err = -EBUSY; + goto probe_exit; + } + addr = ioremap(mem->start, resource_size(mem)); + if (!addr) { + dev_err(&pdev->dev, "ioremap failed\n"); + err = -ENOMEM; + goto probe_exit_free_region; + } + + ndev = alloc_candev(sizeof(struct ti_hecc_priv)); + if (!ndev) { + dev_err(&pdev->dev, "alloc_candev failed\n"); + err = -ENOMEM; + goto probe_exit_iounmap; + } + + priv = netdev_priv(ndev); + priv->ndev = ndev; + priv->base = addr; + priv->scc_ram_offset = pdata->scc_ram_offset; + priv->hecc_ram_offset = pdata->hecc_ram_offset; + priv->mbx_offset = pdata->mbx_offset; + priv->int_line = pdata->int_line; + + priv->can.bittiming_const = &ti_hecc_bittiming_const; + priv->can.do_set_mode = ti_hecc_do_set_mode; + priv->can.do_get_state = ti_hecc_get_state; + + ndev->irq = irq->start; + ndev->flags |= IFF_ECHO; + platform_set_drvdata(pdev, ndev); + SET_NETDEV_DEV(ndev, &pdev->dev); + ndev->netdev_ops = &ti_hecc_netdev_ops; + + priv->clk = clk_get(&pdev->dev, "hecc_ck"); + if (IS_ERR(priv->clk)) { + dev_err(&pdev->dev, "No clock available\n"); + err = PTR_ERR(priv->clk); + priv->clk = NULL; + goto probe_exit_candev; + } + priv->can.clock.freq = clk_get_rate(priv->clk); + netif_napi_add(ndev, &priv->napi, ti_hecc_rx_poll, + HECC_DEF_NAPI_WEIGHT); + + err = register_candev(ndev); + if (err) { + dev_err(&pdev->dev, "register_candev() failed\n"); + goto probe_exit_clk; + } + dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%u)\n", + priv->base, (u32) ndev->irq); + + return 0; + +probe_exit_clk: + clk_put(priv->clk); +probe_exit_candev: + free_candev(ndev); +probe_exit_iounmap: + iounmap(addr); +probe_exit_free_region: + release_mem_region(mem->start, resource_size(mem)); +probe_exit: + return err; +} + +static int __devexit ti_hecc_remove(struct platform_device *pdev) +{ + struct resource *res; + struct net_device *ndev = platform_get_drvdata(pdev); + struct ti_hecc_priv *priv = netdev_priv(ndev); + + clk_put(priv->clk); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + iounmap(priv->base); + release_mem_region(res->start, resource_size(res)); + unregister_candev(ndev); + free_candev(ndev); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +/* TI HECC netdevice driver: platform driver structure */ +static struct platform_driver ti_hecc_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, + .probe = ti_hecc_probe, + .remove = __devexit_p(ti_hecc_remove), +}; + +static int __init ti_hecc_init_driver(void) +{ + printk(KERN_INFO DRV_DESC "\n"); + return platform_driver_register(&ti_hecc_driver); +} +module_init(ti_hecc_init_driver); + +static void __exit ti_hecc_exit_driver(void) +{ + printk(KERN_INFO DRV_DESC " unloaded\n"); + platform_driver_unregister(&ti_hecc_driver); +} +module_exit(ti_hecc_exit_driver); + +MODULE_AUTHOR("Anant Gole "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION(DRV_DESC); diff --git a/include/linux/can/platform/ti_hecc.h b/include/linux/can/platform/ti_hecc.h new file mode 100644 index 000000000000..4688c7bb1bd1 --- /dev/null +++ b/include/linux/can/platform/ti_hecc.h @@ -0,0 +1,40 @@ +/* + * TI HECC (High End CAN Controller) driver platform header + * + * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed as is WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +/** + * struct hecc_platform_data - HECC Platform Data + * + * @scc_hecc_offset: mostly 0 - should really never change + * @scc_ram_offset: SCC RAM offset + * @hecc_ram_offset: HECC RAM offset + * @mbx_offset: Mailbox RAM offset + * @int_line: Interrupt line to use - 0 or 1 + * @version: version for future use + * + * Platform data structure to get all platform specific settings. + * this structure also accounts the fact that the IP may have different + * RAM and mailbox offsets for different SOC's + */ +struct ti_hecc_platform_data { + u32 scc_hecc_offset; + u32 scc_ram_offset; + u32 hecc_ram_offset; + u32 mbx_offset; + u32 int_line; + u32 version; +}; + + -- cgit v1.2.3 From e0e6f55d298af03ab88bfe8455b671d29d78f426 Mon Sep 17 00:00:00 2001 From: Jin Dongming Date: Thu, 8 Oct 2009 22:44:47 -0700 Subject: ipv6: Fix the size overflow of addrconf_sysctl array (This patch fixes bug of commit f7734fdf61ec6bb848e0bafc1fb8bad2c124bb50 title "make TLLAO option for NA packets configurable") When the IPV6 conf is used, the function sysctl_set_parent is called and the array addrconf_sysctl is used as a parameter of the function. The above patch added new conf "force_tllao" into the array addrconf_sysctl, but the size of the array was not modified, the static allocated size is DEVCONF_MAX + 1 but the real size is DEVCONF_MAX + 2, so the problem is that the function sysctl_set_parent accessed wrong address. I got the following information. Call Trace: [] sysctl_set_parent+0x29/0x3e [] sysctl_set_parent+0x29/0x3e [] sysctl_set_parent+0x29/0x3e [] sysctl_set_parent+0x29/0x3e [] sysctl_set_parent+0x29/0x3e [] __register_sysctl_paths+0xde/0x272 [] ? __kmalloc_track_caller+0x16e/0x180 [] ? __addrconf_sysctl_register+0xc5/0x144 [ipv6] [] register_net_sysctl_table+0x48/0x4b [] __addrconf_sysctl_register+0xf7/0x144 [ipv6] [] addrconf_init_net+0xd4/0x104 [ipv6] [] setup_net+0x35/0x82 [] copy_net_ns+0x76/0xe0 [] create_new_namespaces+0xf0/0x16e [] copy_namespaces+0x65/0x9f [] copy_process+0xb2c/0x12c3 [] do_fork+0x14b/0x2d2 [] ? up_read+0xe/0x10 [] ? do_page_fault+0x27a/0x2aa [] sys_clone+0x28/0x2a [] stub_clone+0x13/0x20 [] ? system_call_fastpath+0x16/0x1b And the information of IPV6 in .config is as following. IPV6 in .config: CONFIG_IPV6=m CONFIG_IPV6_PRIVACY=y CONFIG_IPV6_ROUTER_PREF=y CONFIG_IPV6_ROUTE_INFO=y CONFIG_IPV6_OPTIMISTIC_DAD=y CONFIG_IPV6_MIP6=m CONFIG_IPV6_SIT=m # CONFIG_IPV6_SIT_6RD is not set CONFIG_IPV6_NDISC_NODETYPE=y CONFIG_IPV6_TUNNEL=m CONFIG_IPV6_MULTIPLE_TABLES=y CONFIG_IPV6_SUBTREES=y CONFIG_IPV6_MROUTE=y CONFIG_IPV6_PIMSM_V2=y # CONFIG_IP_VS_IPV6 is not set CONFIG_NF_CONNTRACK_IPV6=m CONFIG_IP6_NF_MATCH_IPV6HEADER=m I confirmed this patch fixes this problem. Signed-off-by: Jin Dongming Signed-off-by: David S. Miller --- include/linux/ipv6.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index ae74ede1abe7..56404251248c 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -208,6 +208,7 @@ enum { DEVCONF_MC_FORWARDING, DEVCONF_DISABLE_IPV6, DEVCONF_ACCEPT_DAD, + DEVCONF_FORCE_TLLAO, DEVCONF_MAX }; -- cgit v1.2.3 From d5e63bded6e819ca77ee1a1d97c783a31f6caf30 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 12 Oct 2009 03:00:31 -0700 Subject: Revert "af_packet: add interframe drop cmsg (v6)" This reverts commit 977750076d98c7ff6cbda51858bb5a5894a9d9ab. Neil is reimplementing this generically, outside of AF_PACKET. Signed-off-by: David S. Miller --- include/linux/if_packet.h | 2 -- net/packet/af_packet.c | 33 --------------------------------- 2 files changed, 35 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h index e5d200f53fc3..dea7d6b7cf98 100644 --- a/include/linux/if_packet.h +++ b/include/linux/if_packet.h @@ -48,13 +48,11 @@ struct sockaddr_ll #define PACKET_RESERVE 12 #define PACKET_TX_RING 13 #define PACKET_LOSS 14 -#define PACKET_GAPDATA 15 struct tpacket_stats { unsigned int tp_packets; unsigned int tp_drops; - unsigned int tp_gap; }; struct tpacket_auxdata diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 70073a0dea5d..f87ed4803c11 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -524,31 +524,6 @@ static inline unsigned int run_filter(struct sk_buff *skb, struct sock *sk, return res; } -/* - * If we've lost frames since the last time we queued one to the - * sk_receive_queue, we need to record it here. - * This must be called under the protection of the socket lock - * to prevent racing with other softirqs and user space - */ -static inline void record_packet_gap(struct sk_buff *skb, - struct packet_sock *po) -{ - /* - * We overload the mark field here, since we're about - * to enqueue to a receive queue and no body else will - * use this field at this point - */ - skb->mark = po->stats.tp_gap; - po->stats.tp_gap = 0; - return; - -} - -static inline __u32 check_packet_gap(struct sk_buff *skb) -{ - return skb->mark; -} - /* This function makes lazy skb cloning in hope that most of packets are discarded by BPF. @@ -652,7 +627,6 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_packets++; - record_packet_gap(skb, po); __skb_queue_tail(&sk->sk_receive_queue, skb); spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_ready(sk, skb->len); @@ -661,7 +635,6 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, drop_n_acct: spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_drops++; - po->stats.tp_gap++; spin_unlock(&sk->sk_receive_queue.lock); drop_n_restore: @@ -839,7 +812,6 @@ drop: ring_is_full: po->stats.tp_drops++; - po->stats.tp_gap++; spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_ready(sk, 0); @@ -1449,7 +1421,6 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, struct sk_buff *skb; int copied, err; struct sockaddr_ll *sll; - __u32 gap; err = -EINVAL; if (flags & ~(MSG_PEEK|MSG_DONTWAIT|MSG_TRUNC|MSG_CMSG_COMPAT)) @@ -1528,10 +1499,6 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux); } - gap = check_packet_gap(skb); - if (gap) - put_cmsg(msg, SOL_PACKET, PACKET_GAPDATA, sizeof(__u32), &gap); - /* * Free or return the buffer as appropriate. Again this * hides all the races and re-entrancy issues from us. -- cgit v1.2.3 From 3b885787ea4112eaa80945999ea0901bf742707f Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 12 Oct 2009 13:26:31 -0700 Subject: net: Generalize socket rx gap / receive queue overflow cmsg Create a new socket level option to report number of queue overflows Recently I augmented the AF_PACKET protocol to report the number of frames lost on the socket receive queue between any two enqueued frames. This value was exported via a SOL_PACKET level cmsg. AFter I completed that work it was requested that this feature be generalized so that any datagram oriented socket could make use of this option. As such I've created this patch, It creates a new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue overflowed between any two given frames. It also augments the AF_PACKET protocol to take advantage of this new feature (as it previously did not touch sk->sk_drops, which this patch uses to record the overflow count). Tested successfully by me. Notes: 1) Unlike my previous patch, this patch simply records the sk_drops value, which is not a number of drops between packets, but rather a total number of drops. Deltas must be computed in user space. 2) While this patch currently works with datagram oriented protocols, it will also be accepted by non-datagram oriented protocols. I'm not sure if thats agreeable to everyone, but my argument in favor of doing so is that, for those protocols which aren't applicable to this option, sk_drops will always be zero, and reporting no drops on a receive queue that isn't used for those non-participating protocols seems reasonable to me. This also saves us having to code in a per-protocol opt in mechanism. 3) This applies cleanly to net-next assuming that commit 977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted Signed-off-by: Neil Horman Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- arch/alpha/include/asm/socket.h | 2 ++ arch/arm/include/asm/socket.h | 2 ++ arch/avr32/include/asm/socket.h | 2 ++ arch/cris/include/asm/socket.h | 2 ++ arch/frv/include/asm/socket.h | 2 ++ arch/h8300/include/asm/socket.h | 2 ++ arch/ia64/include/asm/socket.h | 2 ++ arch/m32r/include/asm/socket.h | 2 ++ arch/m68k/include/asm/socket.h | 2 ++ arch/mips/include/asm/socket.h | 2 ++ arch/mn10300/include/asm/socket.h | 2 ++ arch/parisc/include/asm/socket.h | 2 ++ arch/powerpc/include/asm/socket.h | 2 ++ arch/s390/include/asm/socket.h | 2 ++ arch/sparc/include/asm/socket.h | 2 ++ arch/xtensa/include/asm/socket.h | 2 ++ include/asm-generic/socket.h | 1 + include/linux/skbuff.h | 6 ++++-- include/net/sock.h | 3 +++ net/atm/common.c | 2 +- net/bluetooth/af_bluetooth.c | 2 +- net/bluetooth/rfcomm/sock.c | 2 +- net/can/bcm.c | 2 +- net/can/raw.c | 2 +- net/core/sock.c | 17 ++++++++++++++++- net/ieee802154/dgram.c | 2 +- net/ieee802154/raw.c | 2 +- net/ipv4/raw.c | 2 +- net/ipv4/udp.c | 2 +- net/ipv6/raw.c | 2 +- net/ipv6/udp.c | 2 +- net/key/af_key.c | 2 +- net/packet/af_packet.c | 7 +++---- net/rxrpc/ar-recvmsg.c | 2 +- net/sctp/socket.c | 2 +- net/socket.c | 15 +++++++++++++++ 36 files changed, 88 insertions(+), 21 deletions(-) (limited to 'include/linux') diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h index 26773e3246e2..06edfefc3373 100644 --- a/arch/alpha/include/asm/socket.h +++ b/arch/alpha/include/asm/socket.h @@ -67,6 +67,8 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_RXQ_OVFL 40 + /* O_NONBLOCK clashes with the bits used for socket types. Therefore we * have to define SOCK_NONBLOCK to a different value here. */ diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h index 92ac61d294fd..90ffd04b8e74 100644 --- a/arch/arm/include/asm/socket.h +++ b/arch/arm/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h index fe863f9794d5..c8d1fae49476 100644 --- a/arch/avr32/include/asm/socket.h +++ b/arch/avr32/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* __ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h index 45ec49bdb7b1..1a4a61909ca8 100644 --- a/arch/cris/include/asm/socket.h +++ b/arch/cris/include/asm/socket.h @@ -62,6 +62,8 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h index 2dea726095c2..a6b26880c1ec 100644 --- a/arch/frv/include/asm/socket.h +++ b/arch/frv/include/asm/socket.h @@ -60,5 +60,7 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h index 1547f01c8e22..04c0f4596eb5 100644 --- a/arch/h8300/include/asm/socket.h +++ b/arch/h8300/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h index 0b0d5ff062e5..51427eaa51ba 100644 --- a/arch/ia64/include/asm/socket.h +++ b/arch/ia64/include/asm/socket.h @@ -69,4 +69,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h index 3390a864f224..469787c30098 100644 --- a/arch/m32r/include/asm/socket.h +++ b/arch/m32r/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h index eee01cce921b..9bf49c87d954 100644 --- a/arch/m68k/include/asm/socket.h +++ b/arch/m68k/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h index ae05accd9fe4..9de5190f2487 100644 --- a/arch/mips/include/asm/socket.h +++ b/arch/mips/include/asm/socket.h @@ -80,6 +80,8 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_RXQ_OVFL 40 + #ifdef __KERNEL__ /** sock_type - Socket types diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h index 4df75af29d76..4e60c4281288 100644 --- a/arch/mn10300/include/asm/socket.h +++ b/arch/mn10300/include/asm/socket.h @@ -60,4 +60,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h index 960b1e5d8e16..225b7d6a1a0a 100644 --- a/arch/parisc/include/asm/socket.h +++ b/arch/parisc/include/asm/socket.h @@ -59,6 +59,8 @@ #define SO_TIMESTAMPING 0x4020 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_RXQ_OVFL 0x4021 + /* O_NONBLOCK clashes with the bits used for socket types. Therefore we * have to define SOCK_NONBLOCK to a different value here. */ diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h index 3ab8b3e6feb0..866f7606da68 100644 --- a/arch/powerpc/include/asm/socket.h +++ b/arch/powerpc/include/asm/socket.h @@ -67,4 +67,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h index e42df89a0b85..fdff1e995c73 100644 --- a/arch/s390/include/asm/socket.h +++ b/arch/s390/include/asm/socket.h @@ -68,4 +68,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h index 3a5ae3d12088..9d3fefcff2f5 100644 --- a/arch/sparc/include/asm/socket.h +++ b/arch/sparc/include/asm/socket.h @@ -56,6 +56,8 @@ #define SO_TIMESTAMPING 0x0023 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_RXQ_OVFL 0x0024 + /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 0x5001 #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h index beb3a6bdb61d..cbdf2ffaacff 100644 --- a/arch/xtensa/include/asm/socket.h +++ b/arch/xtensa/include/asm/socket.h @@ -71,4 +71,6 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 + #endif /* _XTENSA_SOCKET_H */ diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h index 538991cef6f0..9a6115e7cf63 100644 --- a/include/asm-generic/socket.h +++ b/include/asm-generic/socket.h @@ -63,4 +63,5 @@ #define SO_PROTOCOL 38 #define SO_DOMAIN 39 +#define SO_RXQ_OVFL 40 #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index df7b23ac66e6..8c866b5cb97b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -389,8 +389,10 @@ struct sk_buff { #ifdef CONFIG_NETWORK_SECMARK __u32 secmark; #endif - - __u32 mark; + union { + __u32 mark; + __u32 dropcount; + }; __u16 vlan_tci; diff --git a/include/net/sock.h b/include/net/sock.h index 98398bdec57d..10669b01eeab 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -505,6 +505,7 @@ enum sock_flags { SOCK_TIMESTAMPING_RAW_HARDWARE, /* %SOF_TIMESTAMPING_RAW_HARDWARE */ SOCK_TIMESTAMPING_SYS_HARDWARE, /* %SOF_TIMESTAMPING_SYS_HARDWARE */ SOCK_FASYNC, /* fasync() active */ + SOCK_RXQ_OVFL, }; static inline void sock_copy_flags(struct sock *nsk, struct sock *osk) @@ -1493,6 +1494,8 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) sk->sk_stamp = kt; } +extern void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb); + /** * sock_tx_timestamp - checks whether the outgoing packet is to be time stamped * @msg: outgoing packet diff --git a/net/atm/common.c b/net/atm/common.c index 950bd16d2383..d61e051e0a3f 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -496,7 +496,7 @@ int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, error = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); if (error) return error; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); pr_debug("RcvM %d -= %d\n", atomic_read(&sk->sk_rmem_alloc), skb->truesize); atm_return(vcc, skb->truesize); skb_free_datagram(sk, skb); diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 1f6e49c1cde8..399e59c9c6cb 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -257,7 +257,7 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, skb_reset_transport_header(skb); err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); if (err == 0) - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); skb_free_datagram(sk, skb); diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index c70786503850..d3bfc1b0afb1 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -703,7 +703,7 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock, copied += chunk; size -= chunk; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (!(flags & MSG_PEEK)) { atomic_sub(chunk, &sk->sk_rmem_alloc); diff --git a/net/can/bcm.c b/net/can/bcm.c index 597da4f8f888..2f47039c79dd 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1534,7 +1534,7 @@ static int bcm_recvmsg(struct kiocb *iocb, struct socket *sock, return err; } - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (msg->msg_name) { msg->msg_namelen = sizeof(struct sockaddr_can); diff --git a/net/can/raw.c b/net/can/raw.c index b5e897922d32..962fc9f1d0c7 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -702,7 +702,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct socket *sock, return err; } - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (msg->msg_name) { msg->msg_namelen = sizeof(struct sockaddr_can); diff --git a/net/core/sock.c b/net/core/sock.c index 7626b6aacd68..43ca2c995393 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -276,6 +276,8 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) { int err = 0; int skb_len; + unsigned long flags; + struct sk_buff_head *list = &sk->sk_receive_queue; /* Cast sk->rcvbuf to unsigned... It's pointless, but reduces number of warnings when compiling with -W --ANK @@ -305,7 +307,10 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) */ skb_len = skb->len; - skb_queue_tail(&sk->sk_receive_queue, skb); + spin_lock_irqsave(&list->lock, flags); + skb->dropcount = atomic_read(&sk->sk_drops); + __skb_queue_tail(list, skb); + spin_unlock_irqrestore(&list->lock, flags); if (!sock_flag(sk, SOCK_DEAD)) sk->sk_data_ready(sk, skb_len); @@ -702,6 +707,12 @@ set_rcvbuf: /* We implement the SO_SNDLOWAT etc to not be settable (1003.1g 5.3) */ + case SO_RXQ_OVFL: + if (valbool) + sock_set_flag(sk, SOCK_RXQ_OVFL); + else + sock_reset_flag(sk, SOCK_RXQ_OVFL); + break; default: ret = -ENOPROTOOPT; break; @@ -901,6 +912,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_mark; break; + case SO_RXQ_OVFL: + v.val = !!sock_flag(sk, SOCK_RXQ_OVFL); + break; + default: return -ENOPROTOOPT; } diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index a413b1bf4465..25ad956a39d8 100644 --- a/net/ieee802154/dgram.c +++ b/net/ieee802154/dgram.c @@ -303,7 +303,7 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk, if (err) goto done; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (flags & MSG_TRUNC) copied = skb->len; diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c index 30e74eee07d6..769c8d138fc3 100644 --- a/net/ieee802154/raw.c +++ b/net/ieee802154/raw.c @@ -191,7 +191,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (err) goto done; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (flags & MSG_TRUNC) copied = skb->len; diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 757c9171e7c2..f18172b07611 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -682,7 +682,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (err) goto done; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); /* Copy the address. */ if (sin) { diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 194bcdc6d9fc..71e5353b30c8 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -955,7 +955,7 @@ try_again: UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INDATAGRAMS, is_udplite); - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); /* Copy the address. */ if (sin) { diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 4f24570b0869..d8375bc7f2d5 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -497,7 +497,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, sin6->sin6_scope_id = IP6CB(skb)->iif; } - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (np->rxopt.all) datagram_recv_ctl(sk, msg, skb); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index ff778c172ef2..1f8e2afa4490 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -252,7 +252,7 @@ try_again: UDP_MIB_INDATAGRAMS, is_udplite); } - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); /* Copy the address. */ if (msg->msg_name) { diff --git a/net/key/af_key.c b/net/key/af_key.c index c078ae6e975b..472f6594184a 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3606,7 +3606,7 @@ static int pfkey_recvmsg(struct kiocb *kiocb, if (err) goto out_free; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); err = (flags & MSG_TRUNC) ? skb->len : copied; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index f87ed4803c11..bf3a2954cd4d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -627,15 +627,14 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_packets++; + skb->dropcount = atomic_read(&sk->sk_drops); __skb_queue_tail(&sk->sk_receive_queue, skb); spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_ready(sk, skb->len); return 0; drop_n_acct: - spin_lock(&sk->sk_receive_queue.lock); - po->stats.tp_drops++; - spin_unlock(&sk->sk_receive_queue.lock); + po->stats.tp_drops = atomic_inc_return(&sk->sk_drops); drop_n_restore: if (skb_head != skb->data && skb_shared(skb)) { @@ -1478,7 +1477,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, if (err) goto out_free; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (msg->msg_name) memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa, diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c index a39bf97f8830..60c2b94e6b54 100644 --- a/net/rxrpc/ar-recvmsg.c +++ b/net/rxrpc/ar-recvmsg.c @@ -146,7 +146,7 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock, memcpy(msg->msg_name, &call->conn->trans->peer->srx, sizeof(call->conn->trans->peer->srx)); - sock_recv_timestamp(msg, &rx->sk, skb); + sock_recv_ts_and_drops(msg, &rx->sk, skb); } /* receive the message */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index c8d05758661d..0970e92c6acd 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1958,7 +1958,7 @@ SCTP_STATIC int sctp_recvmsg(struct kiocb *iocb, struct sock *sk, if (err) goto out_free; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); if (sctp_ulpevent_is_notification(event)) { msg->msg_flags |= MSG_NOTIFICATION; sp->pf->event_msgname(event, msg->msg_name, addr_len); diff --git a/net/socket.c b/net/socket.c index 954f3381cc8a..807935693846 100644 --- a/net/socket.c +++ b/net/socket.c @@ -668,6 +668,21 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, EXPORT_SYMBOL_GPL(__sock_recv_timestamp); +inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) +{ + if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && skb->dropcount) + put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL, + sizeof(__u32), &skb->dropcount); +} + +void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, + struct sk_buff *skb) +{ + sock_recv_timestamp(msg, sk, skb); + sock_recv_drops(msg, sk, skb); +} +EXPORT_SYMBOL_GPL(sock_recv_ts_and_drops); + static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags) { -- cgit v1.2.3 From a2e2725541fad72416326798c2d7fa4dafb7d337 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 12 Oct 2009 23:40:10 -0700 Subject: net: Introduce recvmmsg socket syscall MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Meaning receive multiple messages, reducing the number of syscalls and net stack entry/exit operations. Next patches will introduce mechanisms where protocols that want to optimize this operation will provide an unlocked_recvmsg operation. This takes into account comments made by: . Paul Moore: sock_recvmsg is called only for the first datagram, sock_recvmsg_nosec is used for the rest. . Caitlin Bestler: recvmmsg now has a struct timespec timeout, that works in the same fashion as the ppoll one. If the underlying protocol returns a datagram with MSG_OOB set, this will make recvmmsg return right away with as many datagrams (+ the OOB one) it has received so far. . Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen datagrams and then recvmsg returns an error, recvmmsg will return the successfully received datagrams, store the error and return it in the next call. This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg, where we will be able to acquire the lock only at batch start and end, not at every underlying recvmsg call. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- arch/alpha/kernel/systbls.S | 1 + arch/arm/kernel/calls.S | 1 + arch/avr32/kernel/syscall_table.S | 1 + arch/blackfin/mach-common/entry.S | 1 + arch/ia64/kernel/entry.S | 1 + arch/microblaze/kernel/syscall_table.S | 1 + arch/mips/kernel/scall32-o32.S | 1 + arch/mips/kernel/scall64-64.S | 1 + arch/mips/kernel/scall64-n32.S | 1 + arch/mips/kernel/scall64-o32.S | 1 + arch/sh/kernel/syscalls_64.S | 1 + arch/sparc/kernel/systbls_32.S | 2 +- arch/sparc/kernel/systbls_64.S | 4 +- arch/x86/ia32/ia32entry.S | 1 + arch/x86/include/asm/unistd_32.h | 3 +- arch/x86/include/asm/unistd_64.h | 2 + arch/x86/kernel/syscall_table_32.S | 1 + arch/xtensa/include/asm/unistd.h | 4 +- include/linux/net.h | 1 + include/linux/socket.h | 10 ++ include/linux/syscalls.h | 4 + include/net/compat.h | 8 ++ kernel/sys_ni.c | 2 + net/compat.c | 33 ++++- net/socket.c | 225 +++++++++++++++++++++++++++------ 25 files changed, 261 insertions(+), 50 deletions(-) (limited to 'include/linux') diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index 95c9aef1c106..cda6b8b3d573 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -497,6 +497,7 @@ sys_call_table: .quad sys_signalfd .quad sys_ni_syscall .quad sys_eventfd + .quad sys_recvmmsg .size sys_call_table, . - sys_call_table .type sys_call_table, @object diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index fafce1b5c69f..f58c1156e779 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -374,6 +374,7 @@ CALL(sys_pwritev) CALL(sys_rt_tgsigqueueinfo) CALL(sys_perf_event_open) +/* 365 */ CALL(sys_recvmmsg) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S index 7ee0057613b3..e76bad16b0f0 100644 --- a/arch/avr32/kernel/syscall_table.S +++ b/arch/avr32/kernel/syscall_table.S @@ -295,4 +295,5 @@ sys_call_table: .long sys_signalfd .long sys_ni_syscall /* 280, was sys_timerfd */ .long sys_eventfd + .long sys_recvmmsg .long sys_ni_syscall /* r8 is saturated at nr_syscalls */ diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 1e7cac23e25f..48692724b74c 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -1621,6 +1621,7 @@ ENTRY(_sys_call_table) .long _sys_pwritev .long _sys_rt_tgsigqueueinfo .long _sys_perf_event_open + .long _sys_recvmmsg /* 370 */ .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index d0e7d37017b4..d75b872ca4dc 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1806,6 +1806,7 @@ sys_call_table: data8 sys_preadv data8 sys_pwritev // 1320 data8 sys_rt_tgsigqueueinfo + data8 sys_recvmmsg .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index ecec19155135..c1ab1dc10898 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -371,3 +371,4 @@ ENTRY(sys_call_table) .long sys_ni_syscall .long sys_rt_tgsigqueueinfo /* 365 */ .long sys_perf_event_open + .long sys_recvmmsg diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index fd2a9bb620d6..17202bbe843f 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -583,6 +583,7 @@ einval: li v0, -ENOSYS sys sys_rt_tgsigqueueinfo 4 sys sys_perf_event_open 5 sys sys_accept4 4 + sys sys_recvmmsg 5 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 18bf7f32c5e4..a8a6c596eb04 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -420,4 +420,5 @@ sys_call_table: PTR sys_rt_tgsigqueueinfo PTR sys_perf_event_open PTR sys_accept4 + PTR sys_recvmmsg .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 6ebc07976694..5154e64f7cfe 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -418,4 +418,5 @@ EXPORT(sysn32_call_table) PTR compat_sys_rt_tgsigqueueinfo /* 5295 */ PTR sys_perf_event_open PTR sys_accept4 + PTR compat_sys_recvmmsg .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 9bbf9775e0bd..d0eff53d7cb9 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -538,4 +538,5 @@ sys_call_table: PTR compat_sys_rt_tgsigqueueinfo PTR sys_perf_event_open PTR sys_accept4 + PTR compat_sys_recvmmsg .size sys_call_table,.-sys_call_table diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S index 5bfde6c77498..07d2aaea9ae8 100644 --- a/arch/sh/kernel/syscalls_64.S +++ b/arch/sh/kernel/syscalls_64.S @@ -391,3 +391,4 @@ sys_call_table: .long sys_pwritev .long sys_rt_tgsigqueueinfo .long sys_perf_event_open + .long sys_recvmmsg /* 365 */ diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 0f1658d37490..ceb1530f8aa6 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -82,5 +82,5 @@ sys_call_table: /*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate /*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv -/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open +/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 009825f6e73c..f37bef747e60 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -83,7 +83,7 @@ sys_call_table32: /*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv - .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open + .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg #endif /* CONFIG_COMPAT */ @@ -158,4 +158,4 @@ sys_call_table: /*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv - .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open + .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 74619c4f9fda..11a6c79d5f46 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -832,4 +832,5 @@ ia32_sys_call_table: .quad compat_sys_pwritev .quad compat_sys_rt_tgsigqueueinfo /* 335 */ .quad sys_perf_event_open + .quad compat_sys_recvmmsg ia32_syscall_end: diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h index 6fb3c209a7e3..3baf379fa840 100644 --- a/arch/x86/include/asm/unistd_32.h +++ b/arch/x86/include/asm/unistd_32.h @@ -342,10 +342,11 @@ #define __NR_pwritev 334 #define __NR_rt_tgsigqueueinfo 335 #define __NR_perf_event_open 336 +#define __NR_recvmmsg 337 #ifdef __KERNEL__ -#define NR_syscalls 337 +#define NR_syscalls 338 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index 8d3ad0adbc68..4843f7ba754a 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -661,6 +661,8 @@ __SYSCALL(__NR_pwritev, sys_pwritev) __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo) #define __NR_perf_event_open 298 __SYSCALL(__NR_perf_event_open, sys_perf_event_open) +#define __NR_recvmmsg 299 +__SYSCALL(__NR_recvmmsg, sys_recvmmsg) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 0157cd26d7cc..70c2125d55b9 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -336,3 +336,4 @@ ENTRY(sys_call_table) .long sys_pwritev .long sys_rt_tgsigqueueinfo /* 335 */ .long sys_perf_event_open + .long sys_recvmmsg diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h index c092c8fbb2cf..4e55dc763021 100644 --- a/arch/xtensa/include/asm/unistd.h +++ b/arch/xtensa/include/asm/unistd.h @@ -681,8 +681,10 @@ __SYSCALL(304, sys_signalfd, 3) __SYSCALL(305, sys_ni_syscall, 0) #define __NR_eventfd 306 __SYSCALL(306, sys_eventfd, 1) +#define __NR_recvmmsg 307 +__SYSCALL(307, sys_recvmmsg, 5) -#define __NR_syscall_count 307 +#define __NR_syscall_count 308 /* * sysxtensa syscall handler diff --git a/include/linux/net.h b/include/linux/net.h index 529a0931711d..b42bb60fe92f 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -41,6 +41,7 @@ #define SYS_SENDMSG 16 /* sys_sendmsg(2) */ #define SYS_RECVMSG 17 /* sys_recvmsg(2) */ #define SYS_ACCEPT4 18 /* sys_accept4(2) */ +#define SYS_RECVMMSG 19 /* sys_recvmmsg(2) */ typedef enum { SS_FREE = 0, /* not allocated */ diff --git a/include/linux/socket.h b/include/linux/socket.h index 3273a0c5043b..59966f12990c 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -65,6 +65,12 @@ struct msghdr { unsigned msg_flags; }; +/* For recvmmsg/sendmmsg */ +struct mmsghdr { + struct msghdr msg_hdr; + unsigned msg_len; +}; + /* * POSIX 1003.1g - ancillary data object information * Ancillary data consits of a sequence of pairs of @@ -312,6 +318,10 @@ extern int move_addr_to_user(struct sockaddr *kaddr, int klen, void __user *uadd extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr *kaddr); extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); +struct timespec; + +extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, + unsigned int flags, struct timespec *timeout); #endif #endif /* not kernel and not glibc */ #endif /* _LINUX_SOCKET_H */ diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index a990ace1a838..714f063a3e6d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -25,6 +25,7 @@ struct linux_dirent64; struct list_head; struct msgbuf; struct msghdr; +struct mmsghdr; struct msqid_ds; struct new_utsname; struct nfsctl_arg; @@ -677,6 +678,9 @@ asmlinkage long sys_recv(int, void __user *, size_t, unsigned); asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *); asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags); +asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, + unsigned int vlen, unsigned flags, + struct timespec __user *timeout); asmlinkage long sys_socket(int, int, int); asmlinkage long sys_socketpair(int, int, int, int __user *); asmlinkage long sys_socketcall(int call, unsigned long __user *args); diff --git a/include/net/compat.h b/include/net/compat.h index 7c3002832d05..9679f05e9896 100644 --- a/include/net/compat.h +++ b/include/net/compat.h @@ -18,6 +18,11 @@ struct compat_msghdr { compat_uint_t msg_flags; }; +struct compat_mmsghdr { + struct compat_msghdr msg_hdr; + compat_uint_t msg_len; +}; + struct compat_cmsghdr { compat_size_t cmsg_len; compat_int_t cmsg_level; @@ -35,6 +40,9 @@ extern int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *); extern int verify_compat_iovec(struct msghdr *, struct iovec *, struct sockaddr *, int); extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsigned); extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned); +extern asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *, + unsigned, unsigned, + struct timespec __user *); extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *); extern int put_cmsg_compat(struct msghdr*, int, int, int, void *); diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index e06d0b8d1951..f050ba85d420 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -48,8 +48,10 @@ cond_syscall(sys_shutdown); cond_syscall(sys_sendmsg); cond_syscall(compat_sys_sendmsg); cond_syscall(sys_recvmsg); +cond_syscall(sys_recvmmsg); cond_syscall(compat_sys_recvmsg); cond_syscall(compat_sys_recvfrom); +cond_syscall(compat_sys_recvmmsg); cond_syscall(sys_socketcall); cond_syscall(sys_futex); cond_syscall(compat_sys_futex); diff --git a/net/compat.c b/net/compat.c index a407c3addbae..e13f5256fd20 100644 --- a/net/compat.c +++ b/net/compat.c @@ -727,10 +727,10 @@ EXPORT_SYMBOL(compat_mc_getsockopt); /* Argument list sizes for compat_sys_socketcall */ #define AL(x) ((x) * sizeof(u32)) -static unsigned char nas[19]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), +static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), AL(3),AL(3),AL(4),AL(4),AL(4),AL(6), AL(6),AL(2),AL(5),AL(5),AL(3),AL(3), - AL(4)}; + AL(4),AL(5)}; #undef AL asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags) @@ -755,13 +755,36 @@ asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len, return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen); } +asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, + unsigned vlen, unsigned int flags, + struct timespec __user *timeout) +{ + int datagrams; + struct timespec ktspec; + struct compat_timespec __user *utspec = + (struct compat_timespec __user *)timeout; + + if (get_user(ktspec.tv_sec, &utspec->tv_sec) || + get_user(ktspec.tv_nsec, &utspec->tv_nsec)) + return -EFAULT; + + datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, + flags | MSG_CMSG_COMPAT, &ktspec); + if (datagrams > 0 && + (put_user(ktspec.tv_sec, &utspec->tv_sec) || + put_user(ktspec.tv_nsec, &utspec->tv_nsec))) + datagrams = -EFAULT; + + return datagrams; +} + asmlinkage long compat_sys_socketcall(int call, u32 __user *args) { int ret; u32 a[6]; u32 a0, a1; - if (call < SYS_SOCKET || call > SYS_ACCEPT4) + if (call < SYS_SOCKET || call > SYS_RECVMMSG) return -EINVAL; if (copy_from_user(a, args, nas[call])) return -EFAULT; @@ -823,6 +846,10 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args) case SYS_RECVMSG: ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]); break; + case SYS_RECVMMSG: + ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3], + compat_ptr(a[4])); + break; case SYS_ACCEPT4: ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]); break; diff --git a/net/socket.c b/net/socket.c index 807935693846..9dff31c9b799 100644 --- a/net/socket.c +++ b/net/socket.c @@ -683,10 +683,9 @@ void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, } EXPORT_SYMBOL_GPL(sock_recv_ts_and_drops); -static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, size_t size, int flags) +static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t size, int flags) { - int err; struct sock_iocb *si = kiocb_to_siocb(iocb); si->sock = sock; @@ -695,13 +694,17 @@ static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, si->size = size; si->flags = flags; - err = security_socket_recvmsg(sock, msg, size, flags); - if (err) - return err; - return sock->ops->recvmsg(iocb, sock, msg, size, flags); } +static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t size, int flags) +{ + int err = security_socket_recvmsg(sock, msg, size, flags); + + return err ?: __sock_recvmsg_nosec(iocb, sock, msg, size, flags); +} + int sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags) { @@ -717,6 +720,21 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg, return ret; } +static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, + size_t size, int flags) +{ + struct kiocb iocb; + struct sock_iocb siocb; + int ret; + + init_sync_kiocb(&iocb, NULL); + iocb.private = &siocb; + ret = __sock_recvmsg_nosec(&iocb, sock, msg, size, flags); + if (-EIOCBQUEUED == ret) + ret = wait_on_sync_kiocb(&iocb); + return ret; +} + int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size, int flags) { @@ -1983,22 +2001,15 @@ out: return err; } -/* - * BSD recvmsg interface - */ - -SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, - unsigned int, flags) +static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, + struct msghdr *msg_sys, unsigned flags, int nosec) { struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; - struct socket *sock; struct iovec iovstack[UIO_FASTIOV]; struct iovec *iov = iovstack; - struct msghdr msg_sys; unsigned long cmsg_ptr; int err, iov_size, total_len, len; - int fput_needed; /* kernel mode address */ struct sockaddr_storage addr; @@ -2008,27 +2019,23 @@ SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, int __user *uaddr_len; if (MSG_CMSG_COMPAT & flags) { - if (get_compat_msghdr(&msg_sys, msg_compat)) + if (get_compat_msghdr(msg_sys, msg_compat)) return -EFAULT; } - else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr))) + else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr))) return -EFAULT; - sock = sockfd_lookup_light(fd, &err, &fput_needed); - if (!sock) - goto out; - err = -EMSGSIZE; - if (msg_sys.msg_iovlen > UIO_MAXIOV) - goto out_put; + if (msg_sys->msg_iovlen > UIO_MAXIOV) + goto out; /* Check whether to allocate the iovec area */ err = -ENOMEM; - iov_size = msg_sys.msg_iovlen * sizeof(struct iovec); - if (msg_sys.msg_iovlen > UIO_FASTIOV) { + iov_size = msg_sys->msg_iovlen * sizeof(struct iovec); + if (msg_sys->msg_iovlen > UIO_FASTIOV) { iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL); if (!iov) - goto out_put; + goto out; } /* @@ -2036,46 +2043,47 @@ SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, * kernel msghdr to use the kernel address space) */ - uaddr = (__force void __user *)msg_sys.msg_name; + uaddr = (__force void __user *)msg_sys->msg_name; uaddr_len = COMPAT_NAMELEN(msg); if (MSG_CMSG_COMPAT & flags) { - err = verify_compat_iovec(&msg_sys, iov, + err = verify_compat_iovec(msg_sys, iov, (struct sockaddr *)&addr, VERIFY_WRITE); } else - err = verify_iovec(&msg_sys, iov, + err = verify_iovec(msg_sys, iov, (struct sockaddr *)&addr, VERIFY_WRITE); if (err < 0) goto out_freeiov; total_len = err; - cmsg_ptr = (unsigned long)msg_sys.msg_control; - msg_sys.msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT); + cmsg_ptr = (unsigned long)msg_sys->msg_control; + msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT); if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; - err = sock_recvmsg(sock, &msg_sys, total_len, flags); + err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys, + total_len, flags); if (err < 0) goto out_freeiov; len = err; if (uaddr != NULL) { err = move_addr_to_user((struct sockaddr *)&addr, - msg_sys.msg_namelen, uaddr, + msg_sys->msg_namelen, uaddr, uaddr_len); if (err < 0) goto out_freeiov; } - err = __put_user((msg_sys.msg_flags & ~MSG_CMSG_COMPAT), + err = __put_user((msg_sys->msg_flags & ~MSG_CMSG_COMPAT), COMPAT_FLAGS(msg)); if (err) goto out_freeiov; if (MSG_CMSG_COMPAT & flags) - err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr, + err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, &msg_compat->msg_controllen); else - err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr, + err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, &msg->msg_controllen); if (err) goto out_freeiov; @@ -2084,21 +2092,150 @@ SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, out_freeiov: if (iov != iovstack) sock_kfree_s(sock->sk, iov, iov_size); -out_put: +out: + return err; +} + +/* + * BSD recvmsg interface + */ + +SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, + unsigned int, flags) +{ + int fput_needed, err; + struct msghdr msg_sys; + struct socket *sock = sockfd_lookup_light(fd, &err, &fput_needed); + + if (!sock) + goto out; + + err = __sys_recvmsg(sock, msg, &msg_sys, flags, 0); + fput_light(sock->file, fput_needed); out: return err; } -#ifdef __ARCH_WANT_SYS_SOCKETCALL +/* + * Linux recvmmsg interface + */ + +int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, + unsigned int flags, struct timespec *timeout) +{ + int fput_needed, err, datagrams; + struct socket *sock; + struct mmsghdr __user *entry; + struct msghdr msg_sys; + struct timespec end_time; + + if (timeout && + poll_select_set_timeout(&end_time, timeout->tv_sec, + timeout->tv_nsec)) + return -EINVAL; + + datagrams = 0; + + sock = sockfd_lookup_light(fd, &err, &fput_needed); + if (!sock) + return err; + + err = sock_error(sock->sk); + if (err) + goto out_put; + + entry = mmsg; + + while (datagrams < vlen) { + /* + * No need to ask LSM for more than the first datagram. + */ + err = __sys_recvmsg(sock, (struct msghdr __user *)entry, + &msg_sys, flags, datagrams); + if (err < 0) + break; + err = put_user(err, &entry->msg_len); + if (err) + break; + ++entry; + ++datagrams; + + if (timeout) { + ktime_get_ts(timeout); + *timeout = timespec_sub(end_time, *timeout); + if (timeout->tv_sec < 0) { + timeout->tv_sec = timeout->tv_nsec = 0; + break; + } + + /* Timeout, return less than vlen datagrams */ + if (timeout->tv_nsec == 0 && timeout->tv_sec == 0) + break; + } + + /* Out of band data, return right away */ + if (msg_sys.msg_flags & MSG_OOB) + break; + } + +out_put: + fput_light(sock->file, fput_needed); + if (err == 0) + return datagrams; + + if (datagrams != 0) { + /* + * We may return less entries than requested (vlen) if the + * sock is non block and there aren't enough datagrams... + */ + if (err != -EAGAIN) { + /* + * ... or if recvmsg returns an error after we + * received some datagrams, where we record the + * error to return on the next call or if the + * app asks about it using getsockopt(SO_ERROR). + */ + sock->sk->sk_err = -err; + } + + return datagrams; + } + + return err; +} + +SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg, + unsigned int, vlen, unsigned int, flags, + struct timespec __user *, timeout) +{ + int datagrams; + struct timespec timeout_sys; + + if (!timeout) + return __sys_recvmmsg(fd, mmsg, vlen, flags, NULL); + + if (copy_from_user(&timeout_sys, timeout, sizeof(timeout_sys))) + return -EFAULT; + + datagrams = __sys_recvmmsg(fd, mmsg, vlen, flags, &timeout_sys); + + if (datagrams > 0 && + copy_to_user(timeout, &timeout_sys, sizeof(timeout_sys))) + datagrams = -EFAULT; + + return datagrams; +} + +#ifdef __ARCH_WANT_SYS_SOCKETCALL /* Argument list sizes for sys_socketcall */ #define AL(x) ((x) * sizeof(unsigned long)) -static const unsigned char nargs[19]={ +static const unsigned char nargs[20] = { AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), AL(3),AL(3),AL(4),AL(4),AL(4),AL(6), AL(6),AL(2),AL(5),AL(5),AL(3),AL(3), - AL(4) + AL(4),AL(5) }; #undef AL @@ -2118,7 +2255,7 @@ SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) int err; unsigned int len; - if (call < 1 || call > SYS_ACCEPT4) + if (call < 1 || call > SYS_RECVMMSG) return -EINVAL; len = nargs[call]; @@ -2196,6 +2333,10 @@ SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) case SYS_RECVMSG: err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]); break; + case SYS_RECVMMSG: + err = sys_recvmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3], + (struct timespec __user *)a[4]); + break; case SYS_ACCEPT4: err = sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], a[3]); -- cgit v1.2.3 From 61321bbd6235ca9a40ba3bc249e8906cc66233c3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 7 Oct 2009 17:11:23 +0000 Subject: net: Add netdev_alloc_skb_ip_align() helper Instead of hardcoding NET_IP_ALIGN stuff in various network drivers, we can add a helper around netdev_alloc_skb() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/skbuff.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 8c866b5cb97b..0c68fbd6faac 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1491,6 +1491,16 @@ static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev, return __netdev_alloc_skb(dev, length, GFP_ATOMIC); } +static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev, + unsigned int length) +{ + struct sk_buff *skb = netdev_alloc_skb(dev, length + NET_IP_ALIGN); + + if (NET_IP_ALIGN && skb) + skb_reserve(skb, NET_IP_ALIGN); + return skb; +} + extern struct page *__netdev_alloc_page(struct net_device *dev, gfp_t gfp_mask); /** -- cgit v1.2.3 From a6e4bc5304033e434fabccabb230b8e9ff55d76f Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Thu, 8 Oct 2009 22:17:11 +0000 Subject: can: make the number of echo skb's configurable This patch allows the CAN controller driver to define the number of echo skb's used for the local loopback (echo), as suggested by Kurt Van Dijck, with the function: struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); The CAN drivers have been adapted accordingly. For the ems_usb driver, as suggested by Sebastian Haas, the number of echo skb's has been increased to 10, which improves the transmission performance a lot. Signed-off-by: Wolfgang Grandegger Signed-off-by: Kurt Van Dijck Signed-off-by: David S. Miller --- drivers/net/can/at91_can.c | 2 +- drivers/net/can/dev.c | 32 ++++++++++++++++++++++++++------ drivers/net/can/sja1000/sja1000.c | 3 ++- drivers/net/can/sja1000/sja1000.h | 2 ++ drivers/net/can/ti_hecc.c | 6 +----- drivers/net/can/usb/ems_usb.c | 4 ++-- include/linux/can/dev.h | 16 ++++++++-------- 7 files changed, 42 insertions(+), 23 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index f67ae285a35a..b13fd9114130 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -1087,7 +1087,7 @@ static int __init at91_can_probe(struct platform_device *pdev) goto exit_release; } - dev = alloc_candev(sizeof(struct at91_priv)); + dev = alloc_candev(sizeof(struct at91_priv), AT91_MB_TX_NUM); if (!dev) { err = -ENOMEM; goto exit_iounmap; diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index f0b9a1e1db46..39b99f57c265 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -245,7 +245,7 @@ static void can_flush_echo_skb(struct net_device *dev) struct net_device_stats *stats = &dev->stats; int i; - for (i = 0; i < CAN_ECHO_SKB_MAX; i++) { + for (i = 0; i < priv->echo_skb_max; i++) { if (priv->echo_skb[i]) { kfree_skb(priv->echo_skb[i]); priv->echo_skb[i] = NULL; @@ -262,10 +262,13 @@ static void can_flush_echo_skb(struct net_device *dev) * of the device driver. The driver must protect access to * priv->echo_skb, if necessary. */ -void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, int idx) +void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, + unsigned int idx) { struct can_priv *priv = netdev_priv(dev); + BUG_ON(idx >= priv->echo_skb_max); + /* check flag whether this packet has to be looped back */ if (!(dev->flags & IFF_ECHO) || skb->pkt_type != PACKET_LOOPBACK) { kfree_skb(skb); @@ -311,10 +314,12 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb); * is handled in the device driver. The driver must protect * access to priv->echo_skb, if necessary. */ -void can_get_echo_skb(struct net_device *dev, int idx) +void can_get_echo_skb(struct net_device *dev, unsigned int idx) { struct can_priv *priv = netdev_priv(dev); + BUG_ON(idx >= priv->echo_skb_max); + if (priv->echo_skb[idx]) { netif_rx(priv->echo_skb[idx]); priv->echo_skb[idx] = NULL; @@ -327,10 +332,12 @@ EXPORT_SYMBOL_GPL(can_get_echo_skb); * * The function is typically called when TX failed. */ -void can_free_echo_skb(struct net_device *dev, int idx) +void can_free_echo_skb(struct net_device *dev, unsigned int idx) { struct can_priv *priv = netdev_priv(dev); + BUG_ON(idx >= priv->echo_skb_max); + if (priv->echo_skb[idx]) { kfree_skb(priv->echo_skb[idx]); priv->echo_skb[idx] = NULL; @@ -445,17 +452,30 @@ static void can_setup(struct net_device *dev) /* * Allocate and setup space for the CAN network device */ -struct net_device *alloc_candev(int sizeof_priv) +struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max) { struct net_device *dev; struct can_priv *priv; + int size; - dev = alloc_netdev(sizeof_priv, "can%d", can_setup); + if (echo_skb_max) + size = ALIGN(sizeof_priv, sizeof(struct sk_buff *)) + + echo_skb_max * sizeof(struct sk_buff *); + else + size = sizeof_priv; + + dev = alloc_netdev(size, "can%d", can_setup); if (!dev) return NULL; priv = netdev_priv(dev); + if (echo_skb_max) { + priv->echo_skb_max = echo_skb_max; + priv->echo_skb = (void *)priv + + ALIGN(sizeof_priv, sizeof(struct sk_buff *)); + } + priv->state = CAN_STATE_STOPPED; init_timer(&priv->restart_timer); diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 16d2ecd2a3b7..96d8be4253f8 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -565,7 +565,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv) struct net_device *dev; struct sja1000_priv *priv; - dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv); + dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv, + SJA1000_ECHO_SKB_MAX); if (!dev) return NULL; diff --git a/drivers/net/can/sja1000/sja1000.h b/drivers/net/can/sja1000/sja1000.h index 302d2c763ad7..97a622b9302f 100644 --- a/drivers/net/can/sja1000/sja1000.h +++ b/drivers/net/can/sja1000/sja1000.h @@ -50,6 +50,8 @@ #include #include +#define SJA1000_ECHO_SKB_MAX 1 /* the SJA1000 has one TX buffer object */ + #define SJA1000_MAX_IRQ 20 /* max. number of interrupts handled in ISR */ /* SJA1000 registers - manual section 6.4 (Pelican Mode) */ diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 814e6c5c6386..23a7128e4eb7 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -74,10 +74,6 @@ MODULE_VERSION(HECC_MODULE_VERSION); #define HECC_MB_TX_SHIFT 2 /* as per table above */ #define HECC_MAX_TX_MBOX BIT(HECC_MB_TX_SHIFT) -#if (HECC_MAX_TX_MBOX > CAN_ECHO_SKB_MAX) -#error "HECC: MAX TX mailboxes should be equal or less than CAN_ECHO_SKB_MAX" -#endif - #define HECC_TX_PRIO_SHIFT (HECC_MB_TX_SHIFT) #define HECC_TX_PRIO_MASK (MAX_TX_PRIO << HECC_MB_TX_SHIFT) #define HECC_TX_MB_MASK (HECC_MAX_TX_MBOX - 1) @@ -902,7 +898,7 @@ static int ti_hecc_probe(struct platform_device *pdev) goto probe_exit_free_region; } - ndev = alloc_candev(sizeof(struct ti_hecc_priv)); + ndev = alloc_candev(sizeof(struct ti_hecc_priv), HECC_MAX_TX_MBOX); if (!ndev) { dev_err(&pdev->dev, "alloc_candev failed\n"); err = -ENOMEM; diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 9012e0abc626..a65f56a9cd3d 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -232,7 +232,7 @@ MODULE_DEVICE_TABLE(usb, ems_usb_table); #define INTR_IN_BUFFER_SIZE 4 #define MAX_RX_URBS 10 -#define MAX_TX_URBS CAN_ECHO_SKB_MAX +#define MAX_TX_URBS 10 struct ems_usb; @@ -1012,7 +1012,7 @@ static int ems_usb_probe(struct usb_interface *intf, struct ems_usb *dev; int i, err = -ENOMEM; - netdev = alloc_candev(sizeof(struct ems_usb)); + netdev = alloc_candev(sizeof(struct ems_usb), MAX_TX_URBS); if (!netdev) { dev_err(netdev->dev.parent, "Couldn't alloc candev\n"); return -ENOMEM; diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 5824b20b5fcb..1d3f7f00e3af 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -29,8 +29,6 @@ enum can_mode { /* * CAN common private data */ -#define CAN_ECHO_SKB_MAX 4 - struct can_priv { struct can_device_stats can_stats; @@ -44,15 +42,16 @@ struct can_priv { int restart_ms; struct timer_list restart_timer; - struct sk_buff *echo_skb[CAN_ECHO_SKB_MAX]; - int (*do_set_bittiming)(struct net_device *dev); int (*do_set_mode)(struct net_device *dev, enum can_mode mode); int (*do_get_state)(const struct net_device *dev, enum can_state *state); + + unsigned int echo_skb_max; + struct sk_buff **echo_skb; }; -struct net_device *alloc_candev(int sizeof_priv); +struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); void free_candev(struct net_device *dev); int open_candev(struct net_device *dev); @@ -64,8 +63,9 @@ void unregister_candev(struct net_device *dev); int can_restart_now(struct net_device *dev); void can_bus_off(struct net_device *dev); -void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, int idx); -void can_get_echo_skb(struct net_device *dev, int idx); -void can_free_echo_skb(struct net_device *dev, int idx); +void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, + unsigned int idx); +void can_get_echo_skb(struct net_device *dev, unsigned int idx); +void can_free_echo_skb(struct net_device *dev, unsigned int idx); #endif /* CAN_DEV_H */ -- cgit v1.2.3 From aace495933a981274b6491d71b915165a61defdc Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Tue, 13 Oct 2009 07:25:49 +0000 Subject: net: smsc911x: allow platform_data to specify mac address Extend the driver to accept a MAC address specified in platform_data. Signed-off-by: Manuel Lauss Signed-off-by: David S. Miller --- drivers/net/smsc911x.c | 3 +++ include/linux/smsc911x.h | 1 + 2 files changed, 4 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c index ccdd196f5297..6a9f51d1d9f2 100644 --- a/drivers/net/smsc911x.c +++ b/drivers/net/smsc911x.c @@ -2071,6 +2071,9 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) if (is_valid_ether_addr(dev->dev_addr)) { smsc911x_set_hw_mac_address(pdata, dev->dev_addr); SMSC_TRACE(PROBE, "MAC Address is specified by configuration"); + } else if (is_valid_ether_addr(pdata->config.mac)) { + memcpy(dev->dev_addr, pdata->config.mac, 6); + SMSC_TRACE(PROBE, "MAC Address specified by platform data"); } else { /* Try reading mac address from device. if EEPROM is present * it will already have been set */ diff --git a/include/linux/smsc911x.h b/include/linux/smsc911x.h index 5241e4fb4eca..7144e8aa1e41 100644 --- a/include/linux/smsc911x.h +++ b/include/linux/smsc911x.h @@ -30,6 +30,7 @@ struct smsc911x_platform_config { unsigned int irq_type; unsigned int flags; phy_interface_t phy_interface; + unsigned char mac[6]; }; /* Constants for platform_device irq polarity configuration */ -- cgit v1.2.3 From c720c7e8383aff1cb219bddf474ed89d850336e3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 15 Oct 2009 06:30:45 +0000 Subject: inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/pppol2tp.c | 22 ++++---- fs/ocfs2/cluster/netdebug.c | 8 +-- include/linux/ipv6.h | 2 +- include/net/inet6_hashtables.h | 4 +- include/net/inet_hashtables.h | 12 ++--- include/net/inet_sock.h | 36 ++++++------- include/net/inet_timewait_sock.h | 2 +- include/net/ip.h | 12 ++--- net/dccp/ipv4.c | 40 ++++++++------- net/dccp/ipv6.c | 27 +++++----- net/dccp/output.c | 4 +- net/dccp/probe.c | 13 ++--- net/dccp/proto.c | 4 +- net/ipv4/af_inet.c | 62 +++++++++++------------ net/ipv4/datagram.c | 18 +++---- net/ipv4/inet_connection_sock.c | 20 ++++---- net/ipv4/inet_diag.c | 26 +++++----- net/ipv4/inet_hashtables.c | 34 +++++++------ net/ipv4/inet_timewait_sock.c | 12 ++--- net/ipv4/ip_input.c | 2 +- net/ipv4/ip_output.c | 15 +++--- net/ipv4/ip_sockglue.c | 8 +-- net/ipv4/ipmr.c | 2 +- net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 8 +-- net/ipv4/raw.c | 30 +++++------ net/ipv4/tcp.c | 4 +- net/ipv4/tcp_ipv4.c | 70 +++++++++++++------------- net/ipv4/tcp_output.c | 4 +- net/ipv4/tcp_probe.c | 11 ++-- net/ipv4/tcp_timer.c | 8 +-- net/ipv4/udp.c | 51 ++++++++++--------- net/ipv6/af_inet6.c | 28 +++++------ net/ipv6/datagram.c | 15 +++--- net/ipv6/inet6_connection_sock.c | 6 +-- net/ipv6/inet6_hashtables.c | 12 ++--- net/ipv6/ip6mr.c | 2 +- net/ipv6/ipv6_sockglue.c | 6 +-- net/ipv6/raw.c | 30 +++++------ net/ipv6/syncookies.c | 2 +- net/ipv6/tcp_ipv6.c | 32 ++++++------ net/ipv6/udp.c | 24 ++++----- net/netfilter/xt_socket.c | 2 +- net/rds/tcp_listen.c | 8 +-- net/sctp/protocol.c | 8 +-- net/sctp/socket.c | 30 +++++------ net/sunrpc/svcsock.c | 8 +-- security/lsm_audit.c | 12 ++--- 47 files changed, 408 insertions(+), 388 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 5910df60c93e..849cc9c62c2a 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -516,7 +516,7 @@ static inline int pppol2tp_verify_udp_checksum(struct sock *sk, return 0; inet = inet_sk(sk); - psum = csum_tcpudp_nofold(inet->saddr, inet->daddr, ulen, + psum = csum_tcpudp_nofold(inet->inet_saddr, inet->inet_daddr, ulen, IPPROTO_UDP, 0); if ((skb->ip_summed == CHECKSUM_COMPLETE) && @@ -949,8 +949,8 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh inet = inet_sk(sk_tun); udp_len = hdr_len + sizeof(ppph) + total_len; uh = (struct udphdr *) skb->data; - uh->source = inet->sport; - uh->dest = inet->dport; + uh->source = inet->inet_sport; + uh->dest = inet->inet_dport; uh->len = htons(udp_len); uh->check = 0; skb_put(skb, sizeof(struct udphdr)); @@ -978,7 +978,8 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh else if (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM)) { skb->ip_summed = CHECKSUM_COMPLETE; csum = skb_checksum(skb, 0, udp_len, 0); - uh->check = csum_tcpudp_magic(inet->saddr, inet->daddr, + uh->check = csum_tcpudp_magic(inet->inet_saddr, + inet->inet_daddr, udp_len, IPPROTO_UDP, csum); if (uh->check == 0) uh->check = CSUM_MANGLED_0; @@ -986,7 +987,8 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh skb->ip_summed = CHECKSUM_PARTIAL; skb->csum_start = skb_transport_header(skb) - skb->head; skb->csum_offset = offsetof(struct udphdr, check); - uh->check = ~csum_tcpudp_magic(inet->saddr, inet->daddr, + uh->check = ~csum_tcpudp_magic(inet->inet_saddr, + inet->inet_daddr, udp_len, IPPROTO_UDP, 0); } @@ -1136,8 +1138,8 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) __skb_push(skb, sizeof(*uh)); skb_reset_transport_header(skb); uh = udp_hdr(skb); - uh->source = inet->sport; - uh->dest = inet->dport; + uh->source = inet->inet_sport; + uh->dest = inet->inet_dport; uh->len = htons(udp_len); uh->check = 0; @@ -1181,7 +1183,8 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) else if (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM)) { skb->ip_summed = CHECKSUM_COMPLETE; csum = skb_checksum(skb, 0, udp_len, 0); - uh->check = csum_tcpudp_magic(inet->saddr, inet->daddr, + uh->check = csum_tcpudp_magic(inet->inet_saddr, + inet->inet_daddr, udp_len, IPPROTO_UDP, csum); if (uh->check == 0) uh->check = CSUM_MANGLED_0; @@ -1189,7 +1192,8 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) skb->ip_summed = CHECKSUM_PARTIAL; skb->csum_start = skb_transport_header(skb) - skb->head; skb->csum_offset = offsetof(struct udphdr, check); - uh->check = ~csum_tcpudp_magic(inet->saddr, inet->daddr, + uh->check = ~csum_tcpudp_magic(inet->inet_saddr, + inet->inet_daddr, udp_len, IPPROTO_UDP, 0); } diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c index da794bc07a6c..a3f150e52b02 100644 --- a/fs/ocfs2/cluster/netdebug.c +++ b/fs/ocfs2/cluster/netdebug.c @@ -294,10 +294,10 @@ static int sc_seq_show(struct seq_file *seq, void *v) if (sc->sc_sock) { inet = inet_sk(sc->sc_sock->sk); /* the stack's structs aren't sparse endian clean */ - saddr = (__force __be32)inet->saddr; - daddr = (__force __be32)inet->daddr; - sport = (__force __be16)inet->sport; - dport = (__force __be16)inet->dport; + saddr = (__force __be32)inet->inet_saddr; + daddr = (__force __be32)inet->inet_daddr; + sport = (__force __be16)inet->inet_sport; + dport = (__force __be16)inet->inet_dport; } /* XXX sigh, inet-> doesn't have sparse annotation so any diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 56404251248c..e0cc9a7db2b5 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -505,7 +505,7 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk) #define INET6_MATCH(__sk, __net, __hash, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) && sock_net((__sk)) == (__net) && \ - ((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \ + ((*((__portpair *)&(inet_sk(__sk)->inet_dport))) == (__ports)) && \ ((__sk)->sk_family == AF_INET6) && \ ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \ ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \ diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h index 22c73a77cd99..92838d3a1ab7 100644 --- a/include/net/inet6_hashtables.h +++ b/include/net/inet6_hashtables.h @@ -46,8 +46,8 @@ static inline int inet6_sk_ehashfn(const struct sock *sk) const struct ipv6_pinfo *np = inet6_sk(sk); const struct in6_addr *laddr = &np->rcv_saddr; const struct in6_addr *faddr = &np->daddr; - const __u16 lport = inet->num; - const __be16 fport = inet->dport; + const __u16 lport = inet->inet_num; + const __be16 fport = inet->inet_dport; struct net *net = sock_net(sk); return inet6_ehashfn(net, laddr, lport, faddr, fport); diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index 5f11c4a0daca..5b698b3b463d 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -241,7 +241,7 @@ static inline int inet_lhashfn(struct net *net, const unsigned short num) static inline int inet_sk_listen_hashfn(const struct sock *sk) { - return inet_lhashfn(sock_net(sk), inet_sk(sk)->num); + return inet_lhashfn(sock_net(sk), inet_sk(sk)->inet_num); } /* Caller must disable local BH processing. */ @@ -301,8 +301,8 @@ typedef __u64 __bitwise __addrpair; #endif /* __BIG_ENDIAN */ #define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) && net_eq(sock_net(__sk), (__net)) && \ - ((*((__addrpair *)&(inet_sk(__sk)->daddr))) == (__cookie)) && \ - ((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \ + ((*((__addrpair *)&(inet_sk(__sk)->inet_daddr))) == (__cookie)) && \ + ((*((__portpair *)&(inet_sk(__sk)->inet_dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) #define INET_TW_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) && net_eq(sock_net(__sk), (__net)) && \ @@ -313,9 +313,9 @@ typedef __u64 __bitwise __addrpair; #define INET_ADDR_COOKIE(__name, __saddr, __daddr) #define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif) \ (((__sk)->sk_hash == (__hash)) && net_eq(sock_net(__sk), (__net)) && \ - (inet_sk(__sk)->daddr == (__saddr)) && \ - (inet_sk(__sk)->rcv_saddr == (__daddr)) && \ - ((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \ + (inet_sk(__sk)->inet_daddr == (__saddr)) && \ + (inet_sk(__sk)->inet_rcv_saddr == (__daddr)) && \ + ((*((__portpair *)&(inet_sk(__sk)->inet_dport))) == (__ports)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) #define INET_TW_MATCH(__sk, __net, __hash,__cookie, __saddr, __daddr, __ports, __dif) \ (((__sk)->sk_hash == (__hash)) && net_eq(sock_net(__sk), (__net)) && \ diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index 47004f35cc7e..bd4c53f75ac0 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -93,14 +93,14 @@ struct rtable; * * @sk - ancestor class * @pinet6 - pointer to IPv6 control block - * @daddr - Foreign IPv4 addr - * @rcv_saddr - Bound local IPv4 addr - * @dport - Destination port - * @num - Local port - * @saddr - Sending source + * @inet_daddr - Foreign IPv4 addr + * @inet_rcv_saddr - Bound local IPv4 addr + * @inet_dport - Destination port + * @inet_num - Local port + * @inet_saddr - Sending source * @uc_ttl - Unicast TTL - * @sport - Source port - * @id - ID counter for DF pkts + * @inet_sport - Source port + * @inet_id - ID counter for DF pkts * @tos - TOS * @mc_ttl - Multicasting TTL * @is_icsk - is this an inet_connection_sock? @@ -115,16 +115,16 @@ struct inet_sock { struct ipv6_pinfo *pinet6; #endif /* Socket demultiplex comparisons on incoming packets. */ - __be32 daddr; - __be32 rcv_saddr; - __be16 dport; - __u16 num; - __be32 saddr; + __be32 inet_daddr; + __be32 inet_rcv_saddr; + __be16 inet_dport; + __u16 inet_num; + __be32 inet_saddr; __s16 uc_ttl; __u16 cmsg_flags; struct ip_options *opt; - __be16 sport; - __u16 id; + __be16 inet_sport; + __u16 inet_id; __u8 tos; __u8 mc_ttl; __u8 pmtudisc; @@ -190,10 +190,10 @@ static inline unsigned int inet_ehashfn(struct net *net, static inline int inet_sk_ehashfn(const struct sock *sk) { const struct inet_sock *inet = inet_sk(sk); - const __be32 laddr = inet->rcv_saddr; - const __u16 lport = inet->num; - const __be32 faddr = inet->daddr; - const __be16 fport = inet->dport; + const __be32 laddr = inet->inet_rcv_saddr; + const __u16 lport = inet->inet_num; + const __be32 faddr = inet->inet_daddr; + const __be16 fport = inet->inet_dport; struct net *net = sock_net(sk); return inet_ehashfn(net, laddr, lport, faddr, fport); diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index b63b80fac567..37f3aea074a5 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -194,7 +194,7 @@ static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk) static inline __be32 inet_rcv_saddr(const struct sock *sk) { return likely(sk->sk_state != TCP_TIME_WAIT) ? - inet_sk(sk)->rcv_saddr : inet_twsk(sk)->tw_rcv_saddr; + inet_sk(sk)->inet_rcv_saddr : inet_twsk(sk)->tw_rcv_saddr; } extern void inet_twsk_put(struct inet_timewait_sock *tw); diff --git a/include/net/ip.h b/include/net/ip.h index 2f47e5482b55..376adf47764e 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -240,8 +240,8 @@ static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, str * does not change, they drop every other packet in * a TCP stream using header compression. */ - iph->id = (sk && inet_sk(sk)->daddr) ? - htons(inet_sk(sk)->id++) : 0; + iph->id = (sk && inet_sk(sk)->inet_daddr) ? + htons(inet_sk(sk)->inet_id++) : 0; } else __ip_select_ident(iph, dst, 0); } @@ -249,9 +249,9 @@ static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, str static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst, struct sock *sk, int more) { if (iph->frag_off & htons(IP_DF)) { - if (sk && inet_sk(sk)->daddr) { - iph->id = htons(inet_sk(sk)->id); - inet_sk(sk)->id += 1 + more; + if (sk && inet_sk(sk)->inet_daddr) { + iph->id = htons(inet_sk(sk)->inet_id); + inet_sk(sk)->inet_id += 1 + more; } else iph->id = 0; } else @@ -317,7 +317,7 @@ static inline void ip_ib_mc_map(__be32 naddr, const unsigned char *broadcast, ch static __inline__ void inet_reset_saddr(struct sock *sk) { - inet_sk(sk)->rcv_saddr = inet_sk(sk)->saddr = 0; + inet_sk(sk)->inet_rcv_saddr = inet_sk(sk)->inet_saddr = 0; #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) if (sk->sk_family == PF_INET6) { struct ipv6_pinfo *np = inet6_sk(sk); diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 7302e1498d46..00028d4b09d9 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -62,10 +62,10 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) nexthop = inet->opt->faddr; } - tmp = ip_route_connect(&rt, nexthop, inet->saddr, + tmp = ip_route_connect(&rt, nexthop, inet->inet_saddr, RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, IPPROTO_DCCP, - inet->sport, usin->sin_port, sk, 1); + inet->inet_sport, usin->sin_port, sk, 1); if (tmp < 0) return tmp; @@ -77,12 +77,12 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (inet->opt == NULL || !inet->opt->srr) daddr = rt->rt_dst; - if (inet->saddr == 0) - inet->saddr = rt->rt_src; - inet->rcv_saddr = inet->saddr; + if (inet->inet_saddr == 0) + inet->inet_saddr = rt->rt_src; + inet->inet_rcv_saddr = inet->inet_saddr; - inet->dport = usin->sin_port; - inet->daddr = daddr; + inet->inet_dport = usin->sin_port; + inet->inet_daddr = daddr; inet_csk(sk)->icsk_ext_hdr_len = 0; if (inet->opt != NULL) @@ -98,17 +98,19 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (err != 0) goto failure; - err = ip_route_newports(&rt, IPPROTO_DCCP, inet->sport, inet->dport, - sk); + err = ip_route_newports(&rt, IPPROTO_DCCP, inet->inet_sport, + inet->inet_dport, sk); if (err != 0) goto failure; /* OK, now commit destination to socket. */ sk_setup_caps(sk, &rt->u.dst); - dp->dccps_iss = secure_dccp_sequence_number(inet->saddr, inet->daddr, - inet->sport, inet->dport); - inet->id = dp->dccps_iss ^ jiffies; + dp->dccps_iss = secure_dccp_sequence_number(inet->inet_saddr, + inet->inet_daddr, + inet->inet_sport, + inet->inet_dport); + inet->inet_id = dp->dccps_iss ^ jiffies; err = dccp_connect(sk); rt = NULL; @@ -123,7 +125,7 @@ failure: dccp_set_state(sk, DCCP_CLOSED); ip_rt_put(rt); sk->sk_route_caps = 0; - inet->dport = 0; + inet->inet_dport = 0; goto out; } @@ -352,7 +354,9 @@ void dccp_v4_send_check(struct sock *sk, int unused, struct sk_buff *skb) struct dccp_hdr *dh = dccp_hdr(skb); dccp_csum_outgoing(skb); - dh->dccph_checksum = dccp_v4_csum_finish(skb, inet->saddr, inet->daddr); + dh->dccph_checksum = dccp_v4_csum_finish(skb, + inet->inet_saddr, + inet->inet_daddr); } EXPORT_SYMBOL_GPL(dccp_v4_send_check); @@ -393,14 +397,14 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb, newinet = inet_sk(newsk); ireq = inet_rsk(req); - newinet->daddr = ireq->rmt_addr; - newinet->rcv_saddr = ireq->loc_addr; - newinet->saddr = ireq->loc_addr; + newinet->inet_daddr = ireq->rmt_addr; + newinet->inet_rcv_saddr = ireq->loc_addr; + newinet->inet_saddr = ireq->loc_addr; newinet->opt = ireq->opt; ireq->opt = NULL; newinet->mc_index = inet_iif(skb); newinet->mc_ttl = ip_hdr(skb)->ttl; - newinet->id = jiffies; + newinet->inet_id = jiffies; dccp_sync_mss(newsk, dst_mtu(dst)); diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index a2afb553d8b3..6d89f9f7d5d8 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -158,8 +158,8 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, ipv6_addr_copy(&fl.fl6_dst, &np->daddr); ipv6_addr_copy(&fl.fl6_src, &np->saddr); fl.oif = sk->sk_bound_dev_if; - fl.fl_ip_dport = inet->dport; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_dport = inet->inet_dport; + fl.fl_ip_sport = inet->inet_sport; security_sk_classify_flow(sk, &fl); err = ip6_dst_lookup(sk, &dst, &fl); @@ -510,9 +510,9 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, memcpy(newnp, np, sizeof(struct ipv6_pinfo)); - ipv6_addr_set_v4mapped(newinet->daddr, &newnp->daddr); + ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr); - ipv6_addr_set_v4mapped(newinet->saddr, &newnp->saddr); + ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr); ipv6_addr_copy(&newnp->rcv_saddr, &newnp->saddr); @@ -640,7 +640,8 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, dccp_sync_mss(newsk, dst_mtu(dst)); - newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6; + newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6; + newinet->inet_rcv_saddr = LOOPBACK4_IPV6; __inet6_hash(newsk); __inet_inherit_port(sk, newsk); @@ -968,10 +969,9 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, icsk->icsk_af_ops = &dccp_ipv6_af_ops; sk->sk_backlog_rcv = dccp_v6_do_rcv; goto failure; - } else { - ipv6_addr_set_v4mapped(inet->saddr, &np->saddr); - ipv6_addr_set_v4mapped(inet->rcv_saddr, &np->rcv_saddr); } + ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr); + ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &np->rcv_saddr); return err; } @@ -984,7 +984,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, ipv6_addr_copy(&fl.fl6_src, saddr ? saddr : &np->saddr); fl.oif = sk->sk_bound_dev_if; fl.fl_ip_dport = usin->sin6_port; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_sport = inet->inet_sport; security_sk_classify_flow(sk, &fl); if (np->opt != NULL && np->opt->srcrt != NULL) { @@ -1017,7 +1017,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, /* set the source address */ ipv6_addr_copy(&np->saddr, saddr); - inet->rcv_saddr = LOOPBACK4_IPV6; + inet->inet_rcv_saddr = LOOPBACK4_IPV6; __ip6_dst_store(sk, dst, NULL, NULL); @@ -1026,7 +1026,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, icsk->icsk_ext_hdr_len = (np->opt->opt_flen + np->opt->opt_nflen); - inet->dport = usin->sin6_port; + inet->inet_dport = usin->sin6_port; dccp_set_state(sk, DCCP_REQUESTING); err = inet6_hash_connect(&dccp_death_row, sk); @@ -1035,7 +1035,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32, np->daddr.s6_addr32, - inet->sport, inet->dport); + inet->inet_sport, + inet->inet_dport); err = dccp_connect(sk); if (err) goto late_failure; @@ -1046,7 +1047,7 @@ late_failure: dccp_set_state(sk, DCCP_CLOSED); __sk_dst_reset(sk); failure: - inet->dport = 0; + inet->inet_dport = 0; sk->sk_route_caps = 0; return err; } diff --git a/net/dccp/output.c b/net/dccp/output.c index c96119fda688..d6bb753bf6ad 100644 --- a/net/dccp/output.c +++ b/net/dccp/output.c @@ -99,8 +99,8 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb) /* Build DCCP header and checksum it. */ dh = dccp_zeroed_hdr(skb, dccp_header_size); dh->dccph_type = dcb->dccpd_type; - dh->dccph_sport = inet->sport; - dh->dccph_dport = inet->dport; + dh->dccph_sport = inet->inet_sport; + dh->dccph_dport = inet->inet_dport; dh->dccph_doff = (dccp_header_size + dcb->dccpd_opt_len) / 4; dh->dccph_ccval = dcb->dccpd_ccval; dh->dccph_cscov = dp->dccps_pcslen; diff --git a/net/dccp/probe.c b/net/dccp/probe.c index 5e6ec8b9b7b6..dc328425fa20 100644 --- a/net/dccp/probe.c +++ b/net/dccp/probe.c @@ -80,19 +80,20 @@ static int jdccp_sendmsg(struct kiocb *iocb, struct sock *sk, if (ccid_get_current_tx_ccid(dccp_sk(sk)) == DCCPC_CCID3) hc = ccid3_hc_tx_sk(sk); - if (port == 0 || ntohs(inet->dport) == port || - ntohs(inet->sport) == port) { + if (port == 0 || ntohs(inet->inet_dport) == port || + ntohs(inet->inet_sport) == port) { if (hc) printl("%pI4:%u %pI4:%u %d %d %d %d %u %llu %llu %d\n", - &inet->saddr, ntohs(inet->sport), - &inet->daddr, ntohs(inet->dport), size, + &inet->inet_saddr, ntohs(inet->inet_sport), + &inet->inet_daddr, ntohs(inet->inet_dport), size, hc->tx_s, hc->tx_rtt, hc->tx_p, hc->tx_x_calc, hc->tx_x_recv >> 6, hc->tx_x >> 6, hc->tx_t_ipi); else printl("%pI4:%u %pI4:%u %d\n", - &inet->saddr, ntohs(inet->sport), - &inet->daddr, ntohs(inet->dport), size); + &inet->inet_saddr, ntohs(inet->inet_sport), + &inet->inet_daddr, ntohs(inet->inet_dport), + size); } jprobe_return(); diff --git a/net/dccp/proto.c b/net/dccp/proto.c index ecb203fff501..671cd1413d59 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -278,7 +278,7 @@ int dccp_disconnect(struct sock *sk, int flags) sk->sk_send_head = NULL; } - inet->dport = 0; + inet->inet_dport = 0; if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK)) inet_reset_saddr(sk); @@ -290,7 +290,7 @@ int dccp_disconnect(struct sock *sk, int flags) inet_csk_delack_init(sk); __sk_dst_reset(sk); - WARN_ON(inet->num && !icsk->icsk_bind_hash); + WARN_ON(inet->inet_num && !icsk->icsk_bind_hash); sk->sk_error_report(sk); return err; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 1deff48b122e..04a14b1600ac 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -174,12 +174,12 @@ static int inet_autobind(struct sock *sk) /* We may need to bind the socket. */ lock_sock(sk); inet = inet_sk(sk); - if (!inet->num) { + if (!inet->inet_num) { if (sk->sk_prot->get_port(sk, 0)) { release_sock(sk); return -EAGAIN; } - inet->sport = htons(inet->num); + inet->inet_sport = htons(inet->inet_num); } release_sock(sk); return 0; @@ -354,7 +354,7 @@ lookup_protocol: inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0; if (SOCK_RAW == sock->type) { - inet->num = protocol; + inet->inet_num = protocol; if (IPPROTO_RAW == protocol) inet->hdrincl = 1; } @@ -364,7 +364,7 @@ lookup_protocol: else inet->pmtudisc = IP_PMTUDISC_WANT; - inet->id = 0; + inet->inet_id = 0; sock_init_data(sock, sk); @@ -381,13 +381,13 @@ lookup_protocol: sk_refcnt_debug_inc(sk); - if (inet->num) { + if (inet->inet_num) { /* It assumes that any protocol which allows * the user to assign a number at socket * creation time automatically * shares. */ - inet->sport = htons(inet->num); + inet->inet_sport = htons(inet->inet_num); /* Add to protocol hash chains. */ sk->sk_prot->hash(sk); } @@ -494,27 +494,27 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) /* Check these errors (active socket, double bind). */ err = -EINVAL; - if (sk->sk_state != TCP_CLOSE || inet->num) + if (sk->sk_state != TCP_CLOSE || inet->inet_num) goto out_release_sock; - inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr; + inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr; if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) - inet->saddr = 0; /* Use device */ + inet->inet_saddr = 0; /* Use device */ /* Make sure we are allowed to bind here. */ if (sk->sk_prot->get_port(sk, snum)) { - inet->saddr = inet->rcv_saddr = 0; + inet->inet_saddr = inet->inet_rcv_saddr = 0; err = -EADDRINUSE; goto out_release_sock; } - if (inet->rcv_saddr) + if (inet->inet_rcv_saddr) sk->sk_userlocks |= SOCK_BINDADDR_LOCK; if (snum) sk->sk_userlocks |= SOCK_BINDPORT_LOCK; - inet->sport = htons(inet->num); - inet->daddr = 0; - inet->dport = 0; + inet->inet_sport = htons(inet->inet_num); + inet->inet_daddr = 0; + inet->inet_dport = 0; sk_dst_reset(sk); err = 0; out_release_sock: @@ -532,7 +532,7 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr * uaddr, if (uaddr->sa_family == AF_UNSPEC) return sk->sk_prot->disconnect(sk, flags); - if (!inet_sk(sk)->num && inet_autobind(sk)) + if (!inet_sk(sk)->inet_num && inet_autobind(sk)) return -EAGAIN; return sk->sk_prot->connect(sk, (struct sockaddr *)uaddr, addr_len); } @@ -689,17 +689,17 @@ int inet_getname(struct socket *sock, struct sockaddr *uaddr, sin->sin_family = AF_INET; if (peer) { - if (!inet->dport || + if (!inet->inet_dport || (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)) && peer == 1)) return -ENOTCONN; - sin->sin_port = inet->dport; - sin->sin_addr.s_addr = inet->daddr; + sin->sin_port = inet->inet_dport; + sin->sin_addr.s_addr = inet->inet_daddr; } else { - __be32 addr = inet->rcv_saddr; + __be32 addr = inet->inet_rcv_saddr; if (!addr) - addr = inet->saddr; - sin->sin_port = inet->sport; + addr = inet->inet_saddr; + sin->sin_port = inet->inet_sport; sin->sin_addr.s_addr = addr; } memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); @@ -714,7 +714,7 @@ int inet_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, struct sock *sk = sock->sk; /* We may need to bind the socket. */ - if (!inet_sk(sk)->num && inet_autobind(sk)) + if (!inet_sk(sk)->inet_num && inet_autobind(sk)) return -EAGAIN; return sk->sk_prot->sendmsg(iocb, sk, msg, size); @@ -728,7 +728,7 @@ static ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset, struct sock *sk = sock->sk; /* We may need to bind the socket. */ - if (!inet_sk(sk)->num && inet_autobind(sk)) + if (!inet_sk(sk)->inet_num && inet_autobind(sk)) return -EAGAIN; if (sk->sk_prot->sendpage) @@ -1059,9 +1059,9 @@ static int inet_sk_reselect_saddr(struct sock *sk) struct inet_sock *inet = inet_sk(sk); int err; struct rtable *rt; - __be32 old_saddr = inet->saddr; + __be32 old_saddr = inet->inet_saddr; __be32 new_saddr; - __be32 daddr = inet->daddr; + __be32 daddr = inet->inet_daddr; if (inet->opt && inet->opt->srr) daddr = inet->opt->faddr; @@ -1071,7 +1071,7 @@ static int inet_sk_reselect_saddr(struct sock *sk) RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, sk->sk_protocol, - inet->sport, inet->dport, sk, 0); + inet->inet_sport, inet->inet_dport, sk, 0); if (err) return err; @@ -1087,7 +1087,7 @@ static int inet_sk_reselect_saddr(struct sock *sk) __func__, &old_saddr, &new_saddr); } - inet->saddr = inet->rcv_saddr = new_saddr; + inet->inet_saddr = inet->inet_rcv_saddr = new_saddr; /* * XXX The only one ugly spot where we need to @@ -1113,7 +1113,7 @@ int inet_sk_rebuild_header(struct sock *sk) return 0; /* Reroute. */ - daddr = inet->daddr; + daddr = inet->inet_daddr; if (inet->opt && inet->opt->srr) daddr = inet->opt->faddr; { @@ -1123,7 +1123,7 @@ int inet_sk_rebuild_header(struct sock *sk) .nl_u = { .ip4_u = { .daddr = daddr, - .saddr = inet->saddr, + .saddr = inet->inet_saddr, .tos = RT_CONN_FLAGS(sk), }, }, @@ -1131,8 +1131,8 @@ int inet_sk_rebuild_header(struct sock *sk) .flags = inet_sk_flowi_flags(sk), .uli_u = { .ports = { - .sport = inet->sport, - .dport = inet->dport, + .sport = inet->inet_sport, + .dport = inet->inet_dport, }, }, }; diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c index 5e6c5a0f3fde..fb2465811b48 100644 --- a/net/ipv4/datagram.c +++ b/net/ipv4/datagram.c @@ -39,7 +39,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) sk_dst_reset(sk); oif = sk->sk_bound_dev_if; - saddr = inet->saddr; + saddr = inet->inet_saddr; if (ipv4_is_multicast(usin->sin_addr.s_addr)) { if (!oif) oif = inet->mc_index; @@ -49,7 +49,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) err = ip_route_connect(&rt, usin->sin_addr.s_addr, saddr, RT_CONN_FLAGS(sk), oif, sk->sk_protocol, - inet->sport, usin->sin_port, sk, 1); + inet->inet_sport, usin->sin_port, sk, 1); if (err) { if (err == -ENETUNREACH) IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); @@ -60,14 +60,14 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) ip_rt_put(rt); return -EACCES; } - if (!inet->saddr) - inet->saddr = rt->rt_src; /* Update source address */ - if (!inet->rcv_saddr) - inet->rcv_saddr = rt->rt_src; - inet->daddr = rt->rt_dst; - inet->dport = usin->sin_port; + if (!inet->inet_saddr) + inet->inet_saddr = rt->rt_src; /* Update source address */ + if (!inet->inet_rcv_saddr) + inet->inet_rcv_saddr = rt->rt_src; + inet->inet_daddr = rt->rt_dst; + inet->inet_dport = usin->sin_port; sk->sk_state = TCP_ESTABLISHED; - inet->id = jiffies; + inet->inet_id = jiffies; sk_dst_set(sk, &rt->u.dst); return(0); diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 9139e8f6fdb1..f6a0af759932 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -368,7 +368,7 @@ struct dst_entry *inet_csk_route_req(struct sock *sk, .proto = sk->sk_protocol, .flags = inet_sk_flowi_flags(sk), .uli_u = { .ports = - { .sport = inet_sk(sk)->sport, + { .sport = inet_sk(sk)->inet_sport, .dport = ireq->rmt_port } } }; struct net *net = sock_net(sk); @@ -547,9 +547,9 @@ struct sock *inet_csk_clone(struct sock *sk, const struct request_sock *req, newsk->sk_state = TCP_SYN_RECV; newicsk->icsk_bind_hash = NULL; - inet_sk(newsk)->dport = inet_rsk(req)->rmt_port; - inet_sk(newsk)->num = ntohs(inet_rsk(req)->loc_port); - inet_sk(newsk)->sport = inet_rsk(req)->loc_port; + inet_sk(newsk)->inet_dport = inet_rsk(req)->rmt_port; + inet_sk(newsk)->inet_num = ntohs(inet_rsk(req)->loc_port); + inet_sk(newsk)->inet_sport = inet_rsk(req)->loc_port; newsk->sk_write_space = sk_stream_write_space; newicsk->icsk_retransmits = 0; @@ -580,8 +580,8 @@ void inet_csk_destroy_sock(struct sock *sk) /* It cannot be in hash table! */ WARN_ON(!sk_unhashed(sk)); - /* If it has not 0 inet_sk(sk)->num, it must be bound */ - WARN_ON(inet_sk(sk)->num && !inet_csk(sk)->icsk_bind_hash); + /* If it has not 0 inet_sk(sk)->inet_num, it must be bound */ + WARN_ON(inet_sk(sk)->inet_num && !inet_csk(sk)->icsk_bind_hash); sk->sk_prot->destroy(sk); @@ -616,8 +616,8 @@ int inet_csk_listen_start(struct sock *sk, const int nr_table_entries) * after validation is complete. */ sk->sk_state = TCP_LISTEN; - if (!sk->sk_prot->get_port(sk, inet->num)) { - inet->sport = htons(inet->num); + if (!sk->sk_prot->get_port(sk, inet->inet_num)) { + inet->inet_sport = htons(inet->inet_num); sk_dst_reset(sk); sk->sk_prot->hash(sk); @@ -693,8 +693,8 @@ void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr) const struct inet_sock *inet = inet_sk(sk); sin->sin_family = AF_INET; - sin->sin_addr.s_addr = inet->daddr; - sin->sin_port = inet->dport; + sin->sin_addr.s_addr = inet->inet_daddr; + sin->sin_port = inet->inet_dport; } EXPORT_SYMBOL_GPL(inet_csk_addr2sockaddr); diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index cb73fdefba91..bdb78dd180ce 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -116,10 +116,10 @@ static int inet_csk_diag_fill(struct sock *sk, r->id.idiag_cookie[0] = (u32)(unsigned long)sk; r->id.idiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1); - r->id.idiag_sport = inet->sport; - r->id.idiag_dport = inet->dport; - r->id.idiag_src[0] = inet->rcv_saddr; - r->id.idiag_dst[0] = inet->daddr; + r->id.idiag_sport = inet->inet_sport; + r->id.idiag_dport = inet->inet_dport; + r->id.idiag_src[0] = inet->inet_rcv_saddr; + r->id.idiag_dst[0] = inet->inet_daddr; #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) if (r->idiag_family == AF_INET6) { @@ -504,11 +504,11 @@ static int inet_csk_diag_dump(struct sock *sk, } else #endif { - entry.saddr = &inet->rcv_saddr; - entry.daddr = &inet->daddr; + entry.saddr = &inet->inet_rcv_saddr; + entry.daddr = &inet->inet_daddr; } - entry.sport = inet->num; - entry.dport = ntohs(inet->dport); + entry.sport = inet->inet_num; + entry.dport = ntohs(inet->inet_dport); entry.userlocks = sk->sk_userlocks; if (!inet_diag_bc_run(RTA_DATA(bc), RTA_PAYLOAD(bc), &entry)) @@ -584,7 +584,7 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk, if (tmo < 0) tmo = 0; - r->id.idiag_sport = inet->sport; + r->id.idiag_sport = inet->inet_sport; r->id.idiag_dport = ireq->rmt_port; r->id.idiag_src[0] = ireq->loc_addr; r->id.idiag_dst[0] = ireq->rmt_addr; @@ -639,7 +639,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk, if (cb->nlh->nlmsg_len > 4 + NLMSG_SPACE(sizeof(*r))) { bc = (struct rtattr *)(r + 1); - entry.sport = inet->num; + entry.sport = inet->inet_num; entry.userlocks = sk->sk_userlocks; } @@ -732,7 +732,7 @@ static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb) continue; } - if (r->id.idiag_sport != inet->sport && + if (r->id.idiag_sport != inet->inet_sport && r->id.idiag_sport) goto next_listen; @@ -797,10 +797,10 @@ skip_listen_ht: goto next_normal; if (!(r->idiag_states & (1 << sk->sk_state))) goto next_normal; - if (r->id.idiag_sport != inet->sport && + if (r->id.idiag_sport != inet->inet_sport && r->id.idiag_sport) goto next_normal; - if (r->id.idiag_dport != inet->dport && + if (r->id.idiag_dport != inet->inet_dport && r->id.idiag_dport) goto next_normal; if (inet_csk_diag_dump(sk, skb, cb) < 0) { diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index a45aaf3d48b1..47ad7aab51e3 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -64,7 +64,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, atomic_inc(&hashinfo->bsockets); - inet_sk(sk)->num = snum; + inet_sk(sk)->inet_num = snum; sk_add_bind_node(sk, &tb->owners); tb->num_owners++; inet_csk(sk)->icsk_bind_hash = tb; @@ -76,7 +76,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, static void __inet_put_port(struct sock *sk) { struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; - const int bhash = inet_bhashfn(sock_net(sk), inet_sk(sk)->num, + const int bhash = inet_bhashfn(sock_net(sk), inet_sk(sk)->inet_num, hashinfo->bhash_size); struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash]; struct inet_bind_bucket *tb; @@ -88,7 +88,7 @@ static void __inet_put_port(struct sock *sk) __sk_del_bind_node(sk); tb->num_owners--; inet_csk(sk)->icsk_bind_hash = NULL; - inet_sk(sk)->num = 0; + inet_sk(sk)->inet_num = 0; inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb); spin_unlock(&head->lock); } @@ -105,7 +105,7 @@ EXPORT_SYMBOL(inet_put_port); void __inet_inherit_port(struct sock *sk, struct sock *child) { struct inet_hashinfo *table = sk->sk_prot->h.hashinfo; - const int bhash = inet_bhashfn(sock_net(sk), inet_sk(child)->num, + const int bhash = inet_bhashfn(sock_net(sk), inet_sk(child)->inet_num, table->bhash_size); struct inet_bind_hashbucket *head = &table->bhash[bhash]; struct inet_bind_bucket *tb; @@ -126,9 +126,9 @@ static inline int compute_score(struct sock *sk, struct net *net, int score = -1; struct inet_sock *inet = inet_sk(sk); - if (net_eq(sock_net(sk), net) && inet->num == hnum && + if (net_eq(sock_net(sk), net) && inet->inet_num == hnum && !ipv6_only_sock(sk)) { - __be32 rcv_saddr = inet->rcv_saddr; + __be32 rcv_saddr = inet->inet_rcv_saddr; score = sk->sk_family == PF_INET ? 1 : 0; if (rcv_saddr) { if (rcv_saddr != daddr) @@ -273,13 +273,14 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row, { struct inet_hashinfo *hinfo = death_row->hashinfo; struct inet_sock *inet = inet_sk(sk); - __be32 daddr = inet->rcv_saddr; - __be32 saddr = inet->daddr; + __be32 daddr = inet->inet_rcv_saddr; + __be32 saddr = inet->inet_daddr; int dif = sk->sk_bound_dev_if; INET_ADDR_COOKIE(acookie, saddr, daddr) - const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport); + const __portpair ports = INET_COMBINED_PORTS(inet->inet_dport, lport); struct net *net = sock_net(sk); - unsigned int hash = inet_ehashfn(net, daddr, lport, saddr, inet->dport); + unsigned int hash = inet_ehashfn(net, daddr, lport, + saddr, inet->inet_dport); struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash); spinlock_t *lock = inet_ehash_lockp(hinfo, hash); struct sock *sk2; @@ -312,8 +313,8 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row, unique: /* Must record num and sport now. Otherwise we will see * in hash table socket with a funny identity. */ - inet->num = lport; - inet->sport = htons(lport); + inet->inet_num = lport; + inet->inet_sport = htons(lport); sk->sk_hash = hash; WARN_ON(!sk_unhashed(sk)); __sk_nulls_add_node_rcu(sk, &head->chain); @@ -341,8 +342,9 @@ not_unique: static inline u32 inet_sk_port_offset(const struct sock *sk) { const struct inet_sock *inet = inet_sk(sk); - return secure_ipv4_port_ephemeral(inet->rcv_saddr, inet->daddr, - inet->dport); + return secure_ipv4_port_ephemeral(inet->inet_rcv_saddr, + inet->inet_daddr, + inet->inet_dport); } void __inet_hash_nolisten(struct sock *sk) @@ -424,7 +426,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, void (*hash)(struct sock *sk)) { struct inet_hashinfo *hinfo = death_row->hashinfo; - const unsigned short snum = inet_sk(sk)->num; + const unsigned short snum = inet_sk(sk)->inet_num; struct inet_bind_hashbucket *head; struct inet_bind_bucket *tb; int ret; @@ -485,7 +487,7 @@ ok: /* Head lock still held and bh's disabled */ inet_bind_hash(sk, tb, port); if (sk_unhashed(sk)) { - inet_sk(sk)->sport = htons(port); + inet_sk(sk)->inet_sport = htons(port); hash(sk); } spin_unlock(&head->lock); diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 2fe571155b22..1f5d508bb18b 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -86,7 +86,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, Note, that any socket with inet->num != 0 MUST be bound in binding cache, even if it is closed. */ - bhead = &hashinfo->bhash[inet_bhashfn(twsk_net(tw), inet->num, + bhead = &hashinfo->bhash[inet_bhashfn(twsk_net(tw), inet->inet_num, hashinfo->bhash_size)]; spin_lock(&bhead->lock); tw->tw_tb = icsk->icsk_bind_hash; @@ -124,14 +124,14 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat kmemcheck_annotate_bitfield(tw, flags); /* Give us an identity. */ - tw->tw_daddr = inet->daddr; - tw->tw_rcv_saddr = inet->rcv_saddr; + tw->tw_daddr = inet->inet_daddr; + tw->tw_rcv_saddr = inet->inet_rcv_saddr; tw->tw_bound_dev_if = sk->sk_bound_dev_if; - tw->tw_num = inet->num; + tw->tw_num = inet->inet_num; tw->tw_state = TCP_TIME_WAIT; tw->tw_substate = state; - tw->tw_sport = inet->sport; - tw->tw_dport = inet->dport; + tw->tw_sport = inet->inet_sport; + tw->tw_dport = inet->inet_dport; tw->tw_family = sk->sk_family; tw->tw_reuse = sk->sk_reuse; tw->tw_hash = sk->sk_hash; diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 6c98b43badf4..fdf51badc8e5 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -161,7 +161,7 @@ int ip_call_ra_chain(struct sk_buff *skb) /* If socket is bound to an interface, only report * the packet if it came from that interface. */ - if (sk && inet_sk(sk)->num == protocol && + if (sk && inet_sk(sk)->inet_num == protocol && (!sk->sk_bound_dev_if || sk->sk_bound_dev_if == dev->ifindex) && sock_net(sk) == dev_net(dev)) { diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index f9895180f481..322b40864ac0 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -329,7 +329,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok) __be32 daddr; /* Use correct destination address if we have options. */ - daddr = inet->daddr; + daddr = inet->inet_daddr; if(opt && opt->srr) daddr = opt->faddr; @@ -338,13 +338,13 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok) .mark = sk->sk_mark, .nl_u = { .ip4_u = { .daddr = daddr, - .saddr = inet->saddr, + .saddr = inet->inet_saddr, .tos = RT_CONN_FLAGS(sk) } }, .proto = sk->sk_protocol, .flags = inet_sk_flowi_flags(sk), .uli_u = { .ports = - { .sport = inet->sport, - .dport = inet->dport } } }; + { .sport = inet->inet_sport, + .dport = inet->inet_dport } } }; /* If this fails, retransmit mechanism of transport layer will * keep trying until route appears or the connection times @@ -379,7 +379,7 @@ packet_routed: if (opt && opt->optlen) { iph->ihl += opt->optlen >> 2; - ip_options_build(skb, opt, inet->daddr, rt, 0); + ip_options_build(skb, opt, inet->inet_daddr, rt, 0); } ip_select_ident_more(iph, &rt->u.dst, sk, @@ -846,7 +846,8 @@ int ip_append_data(struct sock *sk, maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen; if (inet->cork.length + length > 0xFFFF - fragheaderlen) { - ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport, mtu-exthdrlen); + ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport, + mtu-exthdrlen); return -EMSGSIZE; } @@ -1100,7 +1101,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page, maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen; if (inet->cork.length + size > 0xFFFF - fragheaderlen) { - ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport, mtu); + ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport, mtu); return -EMSGSIZE; } diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 0c0b6e363a20..c602d985fe14 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -245,7 +245,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, { struct ip_ra_chain *ra, *new_ra, **rap; - if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num == IPPROTO_RAW) + if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num == IPPROTO_RAW) return -EINVAL; new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL; @@ -492,7 +492,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, if (sk->sk_family == PF_INET || (!((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) && - inet->daddr != LOOPBACK4_IPV6)) { + inet->inet_daddr != LOOPBACK4_IPV6)) { #endif if (inet->opt) icsk->icsk_ext_hdr_len -= inet->opt->optlen; @@ -1181,8 +1181,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, if (inet->cmsg_flags & IP_CMSG_PKTINFO) { struct in_pktinfo info; - info.ipi_addr.s_addr = inet->rcv_saddr; - info.ipi_spec_dst.s_addr = inet->rcv_saddr; + info.ipi_addr.s_addr = inet->inet_rcv_saddr; + info.ipi_spec_dst.s_addr = inet->inet_rcv_saddr; info.ipi_ifindex = inet->mc_index; put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info); } diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index c757f0b4b74c..694974502ea6 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -956,7 +956,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi switch (optname) { case MRT_INIT: if (sk->sk_type != SOCK_RAW || - inet_sk(sk)->num != IPPROTO_IGMP) + inet_sk(sk)->inet_num != IPPROTO_IGMP) return -EOPNOTSUPP; if (optlen != sizeof(int)) return -ENOPROTOOPT; diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index aa95bb82ee6c..9cd423ffafa8 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -255,10 +255,10 @@ getorigdst(struct sock *sk, int optval, void __user *user, int *len) struct nf_conntrack_tuple tuple; memset(&tuple, 0, sizeof(tuple)); - tuple.src.u3.ip = inet->rcv_saddr; - tuple.src.u.tcp.port = inet->sport; - tuple.dst.u3.ip = inet->daddr; - tuple.dst.u.tcp.port = inet->dport; + tuple.src.u3.ip = inet->inet_rcv_saddr; + tuple.src.u.tcp.port = inet->inet_sport; + tuple.dst.u3.ip = inet->inet_daddr; + tuple.dst.u.tcp.port = inet->inet_dport; tuple.src.l3num = PF_INET; tuple.dst.protonum = sk->sk_protocol; diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 39e2a6b8752c..9ef8c0829a77 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -87,7 +87,7 @@ void raw_hash_sk(struct sock *sk) struct raw_hashinfo *h = sk->sk_prot->h.raw_hash; struct hlist_head *head; - head = &h->ht[inet_sk(sk)->num & (RAW_HTABLE_SIZE - 1)]; + head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)]; write_lock_bh(&h->lock); sk_add_node(sk, head); @@ -115,9 +115,9 @@ static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk, sk_for_each_from(sk, node) { struct inet_sock *inet = inet_sk(sk); - if (net_eq(sock_net(sk), net) && inet->num == num && - !(inet->daddr && inet->daddr != raddr) && - !(inet->rcv_saddr && inet->rcv_saddr != laddr) && + if (net_eq(sock_net(sk), net) && inet->inet_num == num && + !(inet->inet_daddr && inet->inet_daddr != raddr) && + !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) && !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)) goto found; /* gotcha */ } @@ -326,7 +326,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, int err; if (length > rt->u.dst.dev->mtu) { - ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport, + ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport, rt->u.dst.dev->mtu); return -EMSGSIZE; } @@ -489,10 +489,10 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, err = -EDESTADDRREQ; if (sk->sk_state != TCP_ESTABLISHED) goto out; - daddr = inet->daddr; + daddr = inet->inet_daddr; } - ipc.addr = inet->saddr; + ipc.addr = inet->inet_saddr; ipc.opt = NULL; ipc.shtx.flags = 0; ipc.oif = sk->sk_bound_dev_if; @@ -634,9 +634,9 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; - inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr; + inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr; if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) - inet->saddr = 0; /* Use device */ + inet->inet_saddr = 0; /* Use device */ sk_dst_reset(sk); ret = 0; out: return ret; @@ -706,7 +706,7 @@ static int raw_init(struct sock *sk) { struct raw_sock *rp = raw_sk(sk); - if (inet_sk(sk)->num == IPPROTO_ICMP) + if (inet_sk(sk)->inet_num == IPPROTO_ICMP) memset(&rp->filter, 0, sizeof(rp->filter)); return 0; } @@ -743,7 +743,7 @@ static int do_raw_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { if (optname == ICMP_FILTER) { - if (inet_sk(sk)->num != IPPROTO_ICMP) + if (inet_sk(sk)->inet_num != IPPROTO_ICMP) return -EOPNOTSUPP; else return raw_seticmpfilter(sk, optval, optlen); @@ -773,7 +773,7 @@ static int do_raw_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { if (optname == ICMP_FILTER) { - if (inet_sk(sk)->num != IPPROTO_ICMP) + if (inet_sk(sk)->inet_num != IPPROTO_ICMP) return -EOPNOTSUPP; else return raw_geticmpfilter(sk, optval, optlen); @@ -932,10 +932,10 @@ EXPORT_SYMBOL_GPL(raw_seq_stop); static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) { struct inet_sock *inet = inet_sk(sp); - __be32 dest = inet->daddr, - src = inet->rcv_saddr; + __be32 dest = inet->inet_daddr, + src = inet->inet_rcv_saddr; __u16 destp = 0, - srcp = inet->num; + srcp = inet->inet_num; seq_printf(seq, "%4d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index cf13726259cd..206a291dff03 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1998,7 +1998,7 @@ int tcp_disconnect(struct sock *sk, int flags) __skb_queue_purge(&sk->sk_async_wait_queue); #endif - inet->dport = 0; + inet->inet_dport = 0; if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK)) inet_reset_saddr(sk); @@ -2022,7 +2022,7 @@ int tcp_disconnect(struct sock *sk, int flags) memset(&tp->rx_opt, 0, sizeof(tp->rx_opt)); __sk_dst_reset(sk); - WARN_ON(inet->num && !icsk->icsk_bind_hash); + WARN_ON(inet->inet_num && !icsk->icsk_bind_hash); sk->sk_error_report(sk); return err; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 99718703d040..a4a3390a5287 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -165,10 +165,10 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) nexthop = inet->opt->faddr; } - tmp = ip_route_connect(&rt, nexthop, inet->saddr, + tmp = ip_route_connect(&rt, nexthop, inet->inet_saddr, RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, IPPROTO_TCP, - inet->sport, usin->sin_port, sk, 1); + inet->inet_sport, usin->sin_port, sk, 1); if (tmp < 0) { if (tmp == -ENETUNREACH) IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); @@ -183,11 +183,11 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (!inet->opt || !inet->opt->srr) daddr = rt->rt_dst; - if (!inet->saddr) - inet->saddr = rt->rt_src; - inet->rcv_saddr = inet->saddr; + if (!inet->inet_saddr) + inet->inet_saddr = rt->rt_src; + inet->inet_rcv_saddr = inet->inet_saddr; - if (tp->rx_opt.ts_recent_stamp && inet->daddr != daddr) { + if (tp->rx_opt.ts_recent_stamp && inet->inet_daddr != daddr) { /* Reset inherited state */ tp->rx_opt.ts_recent = 0; tp->rx_opt.ts_recent_stamp = 0; @@ -210,8 +210,8 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) } } - inet->dport = usin->sin_port; - inet->daddr = daddr; + inet->inet_dport = usin->sin_port; + inet->inet_daddr = daddr; inet_csk(sk)->icsk_ext_hdr_len = 0; if (inet->opt) @@ -230,7 +230,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) goto failure; err = ip_route_newports(&rt, IPPROTO_TCP, - inet->sport, inet->dport, sk); + inet->inet_sport, inet->inet_dport, sk); if (err) goto failure; @@ -239,12 +239,12 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) sk_setup_caps(sk, &rt->u.dst); if (!tp->write_seq) - tp->write_seq = secure_tcp_sequence_number(inet->saddr, - inet->daddr, - inet->sport, + tp->write_seq = secure_tcp_sequence_number(inet->inet_saddr, + inet->inet_daddr, + inet->inet_sport, usin->sin_port); - inet->id = tp->write_seq ^ jiffies; + inet->inet_id = tp->write_seq ^ jiffies; err = tcp_connect(sk); rt = NULL; @@ -261,7 +261,7 @@ failure: tcp_set_state(sk, TCP_CLOSE); ip_rt_put(rt); sk->sk_route_caps = 0; - inet->dport = 0; + inet->inet_dport = 0; return err; } @@ -520,12 +520,13 @@ void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb) struct tcphdr *th = tcp_hdr(skb); if (skb->ip_summed == CHECKSUM_PARTIAL) { - th->check = ~tcp_v4_check(len, inet->saddr, - inet->daddr, 0); + th->check = ~tcp_v4_check(len, inet->inet_saddr, + inet->inet_daddr, 0); skb->csum_start = skb_transport_header(skb) - skb->head; skb->csum_offset = offsetof(struct tcphdr, check); } else { - th->check = tcp_v4_check(len, inet->saddr, inet->daddr, + th->check = tcp_v4_check(len, inet->inet_saddr, + inet->inet_daddr, csum_partial(th, th->doff << 2, skb->csum)); @@ -848,7 +849,7 @@ static struct tcp_md5sig_key * struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk, struct sock *addr_sk) { - return tcp_v4_md5_do_lookup(sk, inet_sk(addr_sk)->daddr); + return tcp_v4_md5_do_lookup(sk, inet_sk(addr_sk)->inet_daddr); } EXPORT_SYMBOL(tcp_v4_md5_lookup); @@ -923,7 +924,7 @@ EXPORT_SYMBOL(tcp_v4_md5_do_add); static int tcp_v4_md5_add_func(struct sock *sk, struct sock *addr_sk, u8 *newkey, u8 newkeylen) { - return tcp_v4_md5_do_add(sk, inet_sk(addr_sk)->daddr, + return tcp_v4_md5_do_add(sk, inet_sk(addr_sk)->inet_daddr, newkey, newkeylen); } @@ -1089,8 +1090,8 @@ int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, __be32 saddr, daddr; if (sk) { - saddr = inet_sk(sk)->saddr; - daddr = inet_sk(sk)->daddr; + saddr = inet_sk(sk)->inet_saddr; + daddr = inet_sk(sk)->inet_daddr; } else if (req) { saddr = inet_rsk(req)->loc_addr; daddr = inet_rsk(req)->rmt_addr; @@ -1380,9 +1381,9 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newtp = tcp_sk(newsk); newinet = inet_sk(newsk); ireq = inet_rsk(req); - newinet->daddr = ireq->rmt_addr; - newinet->rcv_saddr = ireq->loc_addr; - newinet->saddr = ireq->loc_addr; + newinet->inet_daddr = ireq->rmt_addr; + newinet->inet_rcv_saddr = ireq->loc_addr; + newinet->inet_saddr = ireq->loc_addr; newinet->opt = ireq->opt; ireq->opt = NULL; newinet->mc_index = inet_iif(skb); @@ -1390,7 +1391,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, inet_csk(newsk)->icsk_ext_hdr_len = 0; if (newinet->opt) inet_csk(newsk)->icsk_ext_hdr_len = newinet->opt->optlen; - newinet->id = newtp->write_seq ^ jiffies; + newinet->inet_id = newtp->write_seq ^ jiffies; tcp_mtup_init(newsk); tcp_sync_mss(newsk, dst_mtu(dst)); @@ -1403,7 +1404,8 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, #ifdef CONFIG_TCP_MD5SIG /* Copy over the MD5 key from the original socket */ - if ((key = tcp_v4_md5_do_lookup(sk, newinet->daddr)) != NULL) { + key = tcp_v4_md5_do_lookup(sk, newinet->inet_daddr); + if (key != NULL) { /* * We're using one, so create a matching key * on the newsk structure. If we fail to get @@ -1412,7 +1414,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, */ char *newkey = kmemdup(key->key, key->keylen, GFP_ATOMIC); if (newkey != NULL) - tcp_v4_md5_do_add(newsk, newinet->daddr, + tcp_v4_md5_do_add(newsk, newinet->inet_daddr, newkey, key->keylen); newsk->sk_route_caps &= ~NETIF_F_GSO_MASK; } @@ -1711,8 +1713,8 @@ int tcp_v4_remember_stamp(struct sock *sk) struct inet_peer *peer = NULL; int release_it = 0; - if (!rt || rt->rt_dst != inet->daddr) { - peer = inet_getpeer(inet->daddr, 1); + if (!rt || rt->rt_dst != inet->inet_daddr) { + peer = inet_getpeer(inet->inet_daddr, 1); release_it = 1; } else { if (!rt->peer) @@ -2225,7 +2227,7 @@ static void get_openreq4(struct sock *sk, struct request_sock *req, " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %p%n", i, ireq->loc_addr, - ntohs(inet_sk(sk)->sport), + ntohs(inet_sk(sk)->inet_sport), ireq->rmt_addr, ntohs(ireq->rmt_port), TCP_SYN_RECV, @@ -2248,10 +2250,10 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) struct tcp_sock *tp = tcp_sk(sk); const struct inet_connection_sock *icsk = inet_csk(sk); struct inet_sock *inet = inet_sk(sk); - __be32 dest = inet->daddr; - __be32 src = inet->rcv_saddr; - __u16 destp = ntohs(inet->dport); - __u16 srcp = ntohs(inet->sport); + __be32 dest = inet->inet_daddr; + __be32 src = inet->inet_rcv_saddr; + __u16 destp = ntohs(inet->inet_dport); + __u16 srcp = ntohs(inet->inet_sport); if (icsk->icsk_pending == ICSK_TIME_RETRANS) { timer_active = 1; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index fcd278a7080e..2e2eb74ac4cc 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -661,8 +661,8 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, /* Build TCP header and checksum it. */ th = tcp_hdr(skb); - th->source = inet->sport; - th->dest = inet->dport; + th->source = inet->inet_sport; + th->dest = inet->inet_dport; th->seq = htonl(tcb->seq); th->ack_seq = htonl(tp->rcv_nxt); *(((__be16 *)th) + 6) = htons(((tcp_header_size >> 2) << 12) | diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c index 59f5b5e7c566..7a3cc2ffad84 100644 --- a/net/ipv4/tcp_probe.c +++ b/net/ipv4/tcp_probe.c @@ -94,7 +94,8 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb, const struct inet_sock *inet = inet_sk(sk); /* Only update if port matches */ - if ((port == 0 || ntohs(inet->dport) == port || ntohs(inet->sport) == port) + if ((port == 0 || ntohs(inet->inet_dport) == port || + ntohs(inet->inet_sport) == port) && (full || tp->snd_cwnd != tcp_probe.lastcwnd)) { spin_lock(&tcp_probe.lock); @@ -103,10 +104,10 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb, struct tcp_log *p = tcp_probe.log + tcp_probe.head; p->tstamp = ktime_get(); - p->saddr = inet->saddr; - p->sport = inet->sport; - p->daddr = inet->daddr; - p->dport = inet->dport; + p->saddr = inet->inet_saddr; + p->sport = inet->inet_sport; + p->daddr = inet->inet_daddr; + p->dport = inet->inet_dport; p->length = skb->len; p->snd_nxt = tp->snd_nxt; p->snd_una = tp->snd_una; diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index cdb2ca7684d4..6e8996cb79d0 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -303,15 +303,15 @@ void tcp_retransmit_timer(struct sock *sk) struct inet_sock *inet = inet_sk(sk); if (sk->sk_family == AF_INET) { LIMIT_NETDEBUG(KERN_DEBUG "TCP: Peer %pI4:%u/%u unexpectedly shrunk window %u:%u (repaired)\n", - &inet->daddr, ntohs(inet->dport), - inet->num, tp->snd_una, tp->snd_nxt); + &inet->inet_daddr, ntohs(inet->inet_dport), + inet->inet_num, tp->snd_una, tp->snd_nxt); } #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) else if (sk->sk_family == AF_INET6) { struct ipv6_pinfo *np = inet6_sk(sk); LIMIT_NETDEBUG(KERN_DEBUG "TCP: Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n", - &np->daddr, ntohs(inet->dport), - inet->num, tp->snd_una, tp->snd_nxt); + &np->daddr, ntohs(inet->inet_dport), + inet->inet_num, tp->snd_una, tp->snd_nxt); } #endif #endif diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 45a8a7e374d8..ec5c7a720c0c 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -214,7 +214,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, goto fail_unlock; } found: - inet_sk(sk)->num = snum; + inet_sk(sk)->inet_num = snum; sk->sk_hash = snum; if (sk_unhashed(sk)) { sk_nulls_add_node_rcu(sk, &hslot->head); @@ -233,8 +233,8 @@ static int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2) struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2); return (!ipv6_only_sock(sk2) && - (!inet1->rcv_saddr || !inet2->rcv_saddr || - inet1->rcv_saddr == inet2->rcv_saddr)); + (!inet1->inet_rcv_saddr || !inet2->inet_rcv_saddr || + inet1->inet_rcv_saddr == inet2->inet_rcv_saddr)); } int udp_v4_get_port(struct sock *sk, unsigned short snum) @@ -253,18 +253,18 @@ static inline int compute_score(struct sock *sk, struct net *net, __be32 saddr, struct inet_sock *inet = inet_sk(sk); score = (sk->sk_family == PF_INET ? 1 : 0); - if (inet->rcv_saddr) { - if (inet->rcv_saddr != daddr) + if (inet->inet_rcv_saddr) { + if (inet->inet_rcv_saddr != daddr) return -1; score += 2; } - if (inet->daddr) { - if (inet->daddr != saddr) + if (inet->inet_daddr) { + if (inet->inet_daddr != saddr) return -1; score += 2; } - if (inet->dport) { - if (inet->dport != sport) + if (inet->inet_dport) { + if (inet->inet_dport != sport) return -1; score += 2; } @@ -360,9 +360,10 @@ static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk, if (!net_eq(sock_net(s), net) || s->sk_hash != hnum || - (inet->daddr && inet->daddr != rmt_addr) || - (inet->dport != rmt_port && inet->dport) || - (inet->rcv_saddr && inet->rcv_saddr != loc_addr) || + (inet->inet_daddr && inet->inet_daddr != rmt_addr) || + (inet->inet_dport != rmt_port && inet->inet_dport) || + (inet->inet_rcv_saddr && + inet->inet_rcv_saddr != loc_addr) || ipv6_only_sock(s) || (s->sk_bound_dev_if && s->sk_bound_dev_if != dif)) continue; @@ -646,14 +647,14 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, } else { if (sk->sk_state != TCP_ESTABLISHED) return -EDESTADDRREQ; - daddr = inet->daddr; - dport = inet->dport; + daddr = inet->inet_daddr; + dport = inet->inet_dport; /* Open fast path for connected socket. Route will not be used, if at least one option is set. */ connected = 1; } - ipc.addr = inet->saddr; + ipc.addr = inet->inet_saddr; ipc.oif = sk->sk_bound_dev_if; err = sock_tx_timestamp(msg, sk, &ipc.shtx); @@ -708,7 +709,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, .proto = sk->sk_protocol, .flags = inet_sk_flowi_flags(sk), .uli_u = { .ports = - { .sport = inet->sport, + { .sport = inet->inet_sport, .dport = dport } } }; struct net *net = sock_net(sk); @@ -752,7 +753,7 @@ back_from_confirm: inet->cork.fl.fl4_dst = daddr; inet->cork.fl.fl_ip_dport = dport; inet->cork.fl.fl4_src = saddr; - inet->cork.fl.fl_ip_sport = inet->sport; + inet->cork.fl.fl_ip_sport = inet->inet_sport; up->pending = AF_INET; do_append_data: @@ -1029,15 +1030,15 @@ int udp_disconnect(struct sock *sk, int flags) */ sk->sk_state = TCP_CLOSE; - inet->daddr = 0; - inet->dport = 0; + inet->inet_daddr = 0; + inet->inet_dport = 0; sk->sk_bound_dev_if = 0; if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK)) inet_reset_saddr(sk); if (!(sk->sk_userlocks & SOCK_BINDPORT_LOCK)) { sk->sk_prot->unhash(sk); - inet->sport = 0; + inet->inet_sport = 0; } sk_dst_reset(sk); return 0; @@ -1053,7 +1054,7 @@ void udp_lib_unhash(struct sock *sk) spin_lock_bh(&hslot->lock); if (sk_nulls_del_node_init_rcu(sk)) { - inet_sk(sk)->num = 0; + inet_sk(sk)->inet_num = 0; sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); } spin_unlock_bh(&hslot->lock); @@ -1752,10 +1753,10 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, int bucket, int *len) { struct inet_sock *inet = inet_sk(sp); - __be32 dest = inet->daddr; - __be32 src = inet->rcv_saddr; - __u16 destp = ntohs(inet->dport); - __u16 srcp = ntohs(inet->sport); + __be32 dest = inet->inet_daddr; + __be32 src = inet->inet_rcv_saddr; + __u16 destp = ntohs(inet->inet_dport); + __u16 srcp = ntohs(inet->inet_sport); seq_printf(f, "%5d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n", diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 94216519873c..b6d058818673 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -185,7 +185,7 @@ lookup_protocol: inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0; if (SOCK_RAW == sock->type) { - inet->num = protocol; + inet->inet_num = protocol; if (IPPROTO_RAW == protocol) inet->hdrincl = 1; } @@ -228,12 +228,12 @@ lookup_protocol: */ sk_refcnt_debug_inc(sk); - if (inet->num) { + if (inet->inet_num) { /* It assumes that any protocol which allows * the user to assign a number at socket * creation time automatically shares. */ - inet->sport = htons(inet->num); + inet->inet_sport = htons(inet->inet_num); sk->sk_prot->hash(sk); } if (sk->sk_prot->init) { @@ -281,7 +281,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) lock_sock(sk); /* Check these errors (active socket, double bind). */ - if (sk->sk_state != TCP_CLOSE || inet->num) { + if (sk->sk_state != TCP_CLOSE || inet->inet_num) { err = -EINVAL; goto out; } @@ -353,8 +353,8 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) } } - inet->rcv_saddr = v4addr; - inet->saddr = v4addr; + inet->inet_rcv_saddr = v4addr; + inet->inet_saddr = v4addr; ipv6_addr_copy(&np->rcv_saddr, &addr->sin6_addr); @@ -375,9 +375,9 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) } if (snum) sk->sk_userlocks |= SOCK_BINDPORT_LOCK; - inet->sport = htons(inet->num); - inet->dport = 0; - inet->daddr = 0; + inet->inet_sport = htons(inet->inet_num); + inet->inet_dport = 0; + inet->inet_daddr = 0; out: release_sock(sk); return err; @@ -441,12 +441,12 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr, sin->sin6_flowinfo = 0; sin->sin6_scope_id = 0; if (peer) { - if (!inet->dport) + if (!inet->inet_dport) return -ENOTCONN; if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)) && peer == 1) return -ENOTCONN; - sin->sin6_port = inet->dport; + sin->sin6_port = inet->inet_dport; ipv6_addr_copy(&sin->sin6_addr, &np->daddr); if (np->sndflow) sin->sin6_flowinfo = np->flow_label; @@ -456,7 +456,7 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr, else ipv6_addr_copy(&sin->sin6_addr, &np->rcv_saddr); - sin->sin6_port = inet->sport; + sin->sin6_port = inet->inet_sport; } if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL) sin->sin6_scope_id = sk->sk_bound_dev_if; @@ -655,8 +655,8 @@ int inet6_sk_rebuild_header(struct sock *sk) fl.fl6_flowlabel = np->flow_label; fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; - fl.fl_ip_dport = inet->dport; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_dport = inet->inet_dport; + fl.fl_ip_sport = inet->inet_sport; security_sk_classify_flow(sk, &fl); if (np->opt && np->opt->srcrt) { diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index dbfec7147aa5..9f70452a69e7 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -98,13 +98,14 @@ ipv4_connected: if (err) goto out; - ipv6_addr_set_v4mapped(inet->daddr, &np->daddr); + ipv6_addr_set_v4mapped(inet->inet_daddr, &np->daddr); if (ipv6_addr_any(&np->saddr)) - ipv6_addr_set_v4mapped(inet->saddr, &np->saddr); + ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr); if (ipv6_addr_any(&np->rcv_saddr)) - ipv6_addr_set_v4mapped(inet->rcv_saddr, &np->rcv_saddr); + ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, + &np->rcv_saddr); goto out; } @@ -133,7 +134,7 @@ ipv4_connected: ipv6_addr_copy(&np->daddr, daddr); np->flow_label = fl.fl6_flowlabel; - inet->dport = usin->sin6_port; + inet->inet_dport = usin->sin6_port; /* * Check for a route to destination an obtain the @@ -145,8 +146,8 @@ ipv4_connected: ipv6_addr_copy(&fl.fl6_src, &np->saddr); fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; - fl.fl_ip_dport = inet->dport; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_dport = inet->inet_dport; + fl.fl_ip_sport = inet->inet_sport; if (!fl.oif && (addr_type&IPV6_ADDR_MULTICAST)) fl.oif = np->mcast_oif; @@ -188,7 +189,7 @@ ipv4_connected: if (ipv6_addr_any(&np->rcv_saddr)) { ipv6_addr_copy(&np->rcv_saddr, &fl.fl6_src); - inet->rcv_saddr = LOOPBACK4_IPV6; + inet->inet_rcv_saddr = LOOPBACK4_IPV6; } ip6_dst_store(sk, dst, diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index a9f4a21b31ea..19dceef4fcca 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -132,7 +132,7 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr) sin6->sin6_family = AF_INET6; ipv6_addr_copy(&sin6->sin6_addr, &np->daddr); - sin6->sin6_port = inet_sk(sk)->dport; + sin6->sin6_port = inet_sk(sk)->inet_dport; /* We do not store received flowlabel for TCP */ sin6->sin6_flowinfo = 0; sin6->sin6_scope_id = 0; @@ -195,8 +195,8 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok) IP6_ECN_flow_xmit(sk, fl.fl6_flowlabel); fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; - fl.fl_ip_sport = inet->sport; - fl.fl_ip_dport = inet->dport; + fl.fl_ip_sport = inet->inet_sport; + fl.fl_ip_dport = inet->inet_dport; security_sk_classify_flow(sk, &fl); if (np->opt && np->opt->srcrt) { diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c index 874aed86e1a2..00c6a3e6cddf 100644 --- a/net/ipv6/inet6_hashtables.c +++ b/net/ipv6/inet6_hashtables.c @@ -125,7 +125,7 @@ static int inline compute_score(struct sock *sk, struct net *net, { int score = -1; - if (net_eq(sock_net(sk), net) && inet_sk(sk)->num == hnum && + if (net_eq(sock_net(sk), net) && inet_sk(sk)->inet_num == hnum && sk->sk_family == PF_INET6) { const struct ipv6_pinfo *np = inet6_sk(sk); @@ -214,10 +214,10 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, const struct in6_addr *daddr = &np->rcv_saddr; const struct in6_addr *saddr = &np->daddr; const int dif = sk->sk_bound_dev_if; - const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport); + const __portpair ports = INET_COMBINED_PORTS(inet->inet_dport, lport); struct net *net = sock_net(sk); const unsigned int hash = inet6_ehashfn(net, daddr, lport, saddr, - inet->dport); + inet->inet_dport); struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash); spinlock_t *lock = inet_ehash_lockp(hinfo, hash); struct sock *sk2; @@ -248,8 +248,8 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row, unique: /* Must record num and sport now. Otherwise we will see * in hash table socket with a funny identity. */ - inet->num = lport; - inet->sport = htons(lport); + inet->inet_num = lport; + inet->inet_sport = htons(lport); WARN_ON(!sk_unhashed(sk)); __sk_nulls_add_node_rcu(sk, &head->chain); sk->sk_hash = hash; @@ -279,7 +279,7 @@ static inline u32 inet6_sk_port_offset(const struct sock *sk) const struct ipv6_pinfo *np = inet6_sk(sk); return secure_ipv6_port_ephemeral(np->rcv_saddr.s6_addr32, np->daddr.s6_addr32, - inet->dport); + inet->inet_dport); } int inet6_hash_connect(struct inet_timewait_death_row *death_row, diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 716153941fc4..85849b4f5a36 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -1297,7 +1297,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns switch (optname) { case MRT6_INIT: if (sk->sk_type != SOCK_RAW || - inet_sk(sk)->num != IPPROTO_ICMPV6) + inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; if (optlen < sizeof(int)) return -EINVAL; diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index dc0f7366073d..39e10ac88019 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -64,7 +64,7 @@ int ip6_ra_control(struct sock *sk, int sel) struct ip6_ra_chain *ra, *new_ra, **rap; /* RA packet may be delivered ONLY to IPPROTO_RAW socket */ - if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW) + if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num != IPPROTO_RAW) return -ENOPROTOOPT; new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL; @@ -106,7 +106,7 @@ struct ipv6_txoptions *ipv6_update_options(struct sock *sk, if (inet_sk(sk)->is_icsk) { if (opt && !((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) && - inet_sk(sk)->daddr != LOOPBACK4_IPV6) { + inet_sk(sk)->inet_daddr != LOOPBACK4_IPV6) { struct inet_connection_sock *icsk = inet_csk(sk); icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen; icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie); @@ -234,7 +234,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, case IPV6_V6ONLY: if (optlen < sizeof(int) || - inet_sk(sk)->num) + inet_sk(sk)->inet_num) goto e_inval; np->ipv6only = valbool; retv = 0; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index fd737efed96c..52ed7d7f9dab 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -72,7 +72,7 @@ static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk, int is_multicast = ipv6_addr_is_multicast(loc_addr); sk_for_each_from(sk, node) - if (inet_sk(sk)->num == num) { + if (inet_sk(sk)->inet_num == num) { struct ipv6_pinfo *np = inet6_sk(sk); if (!net_eq(sock_net(sk), net)) @@ -298,7 +298,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) dev_put(dev); } - inet->rcv_saddr = inet->saddr = v4addr; + inet->inet_rcv_saddr = inet->inet_saddr = v4addr; ipv6_addr_copy(&np->rcv_saddr, &addr->sin6_addr); if (!(addr_type & IPV6_ADDR_MULTICAST)) ipv6_addr_copy(&np->saddr, &addr->sin6_addr); @@ -415,14 +415,14 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) skb_network_header_len(skb)); if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, - skb->len, inet->num, skb->csum)) + skb->len, inet->inet_num, skb->csum)) skb->ip_summed = CHECKSUM_UNNECESSARY; } if (!skb_csum_unnecessary(skb)) skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, skb->len, - inet->num, 0)); + inet->inet_num, 0)); if (inet->hdrincl) { if (skb_checksum_complete(skb)) { @@ -765,8 +765,8 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, proto = ntohs(sin6->sin6_port); if (!proto) - proto = inet->num; - else if (proto != inet->num) + proto = inet->inet_num; + else if (proto != inet->inet_num) return(-EINVAL); if (proto > 255) @@ -799,7 +799,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, if (sk->sk_state != TCP_ESTABLISHED) return -EDESTADDRREQ; - proto = inet->num; + proto = inet->inet_num; daddr = &np->daddr; fl.fl6_flowlabel = np->flow_label; } @@ -966,7 +966,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_CHECKSUM: - if (inet_sk(sk)->num == IPPROTO_ICMPV6 && + if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 && level == IPPROTO_IPV6) { /* * RFC3542 tells that IPV6_CHECKSUM socket @@ -1006,7 +1006,7 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname, break; case SOL_ICMPV6: - if (inet_sk(sk)->num != IPPROTO_ICMPV6) + if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_seticmpfilter(sk, level, optname, optval, optlen); @@ -1029,7 +1029,7 @@ static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname, case SOL_RAW: break; case SOL_ICMPV6: - if (inet_sk(sk)->num != IPPROTO_ICMPV6) + if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_seticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: @@ -1086,7 +1086,7 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname, break; case SOL_ICMPV6: - if (inet_sk(sk)->num != IPPROTO_ICMPV6) + if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_geticmpfilter(sk, level, optname, optval, optlen); @@ -1109,7 +1109,7 @@ static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname, case SOL_RAW: break; case SOL_ICMPV6: - if (inet_sk(sk)->num != IPPROTO_ICMPV6) + if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_geticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: @@ -1156,7 +1156,7 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg) static void rawv6_close(struct sock *sk, long timeout) { - if (inet_sk(sk)->num == IPPROTO_RAW) + if (inet_sk(sk)->inet_num == IPPROTO_RAW) ip6_ra_control(sk, -1); ip6mr_sk_done(sk); sk_common_release(sk); @@ -1175,7 +1175,7 @@ static int rawv6_init_sk(struct sock *sk) { struct raw6_sock *rp = raw6_sk(sk); - switch (inet_sk(sk)->num) { + switch (inet_sk(sk)->inet_num) { case IPPROTO_ICMPV6: rp->checksum = 1; rp->offset = 2; @@ -1225,7 +1225,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) dest = &np->daddr; src = &np->rcv_saddr; destp = 0; - srcp = inet_sk(sp)->num; + srcp = inet_sk(sp)->inet_num; seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index cbe55e5d9f96..c46da533888a 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -254,7 +254,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; fl.fl_ip_dport = inet_rsk(req)->rmt_port; - fl.fl_ip_sport = inet_sk(sk)->sport; + fl.fl_ip_sport = inet_sk(sk)->inet_sport; security_req_classify_flow(req, &fl); if (ip6_dst_lookup(sk, &dst, &fl)) goto out_free; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 451763059142..c54ec3615ded 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -226,8 +226,9 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, #endif goto failure; } else { - ipv6_addr_set_v4mapped(inet->saddr, &np->saddr); - ipv6_addr_set_v4mapped(inet->rcv_saddr, &np->rcv_saddr); + ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr); + ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, + &np->rcv_saddr); } return err; @@ -243,7 +244,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; fl.fl_ip_dport = usin->sin6_port; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_sport = inet->inet_sport; if (np->opt && np->opt->srcrt) { struct rt0_hdr *rt0 = (struct rt0_hdr *)np->opt->srcrt; @@ -275,7 +276,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, /* set the source address */ ipv6_addr_copy(&np->saddr, saddr); - inet->rcv_saddr = LOOPBACK4_IPV6; + inet->inet_rcv_saddr = LOOPBACK4_IPV6; sk->sk_gso_type = SKB_GSO_TCPV6; __ip6_dst_store(sk, dst, NULL, NULL); @@ -287,7 +288,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, tp->rx_opt.mss_clamp = IPV6_MIN_MTU - sizeof(struct tcphdr) - sizeof(struct ipv6hdr); - inet->dport = usin->sin6_port; + inet->inet_dport = usin->sin6_port; tcp_set_state(sk, TCP_SYN_SENT); err = inet6_hash_connect(&tcp_death_row, sk); @@ -297,8 +298,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, if (!tp->write_seq) tp->write_seq = secure_tcpv6_sequence_number(np->saddr.s6_addr32, np->daddr.s6_addr32, - inet->sport, - inet->dport); + inet->inet_sport, + inet->inet_dport); err = tcp_connect(sk); if (err) @@ -310,7 +311,7 @@ late_failure: tcp_set_state(sk, TCP_CLOSE); __sk_dst_reset(sk); failure: - inet->dport = 0; + inet->inet_dport = 0; sk->sk_route_caps = 0; return err; } @@ -383,8 +384,8 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, ipv6_addr_copy(&fl.fl6_src, &np->saddr); fl.oif = sk->sk_bound_dev_if; fl.mark = sk->sk_mark; - fl.fl_ip_dport = inet->dport; - fl.fl_ip_sport = inet->sport; + fl.fl_ip_dport = inet->inet_dport; + fl.fl_ip_sport = inet->inet_sport; security_skb_classify_flow(skb, &fl); if ((err = ip6_dst_lookup(sk, &dst, &fl))) { @@ -1291,9 +1292,9 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, memcpy(newnp, np, sizeof(struct ipv6_pinfo)); - ipv6_addr_set_v4mapped(newinet->daddr, &newnp->daddr); + ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr); - ipv6_addr_set_v4mapped(newinet->saddr, &newnp->saddr); + ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr); ipv6_addr_copy(&newnp->rcv_saddr, &newnp->saddr); @@ -1431,7 +1432,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newtp->advmss = dst_metric(dst, RTAX_ADVMSS); tcp_initialize_rcv_mss(newsk); - newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6; + newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6; + newinet->inet_rcv_saddr = LOOPBACK4_IPV6; #ifdef CONFIG_TCP_MD5SIG /* Copy over the MD5 key from the original socket */ @@ -1931,8 +1933,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) dest = &np->daddr; src = &np->rcv_saddr; - destp = ntohs(inet->dport); - srcp = ntohs(inet->sport); + destp = ntohs(inet->inet_dport); + srcp = ntohs(inet->inet_sport); if (icsk->icsk_pending == ICSK_TIME_RETRANS) { timer_active = 1; diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index b86425b7ea22..829d300a6f35 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -53,7 +53,7 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) { const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr; const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2); - __be32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr; + __be32 sk1_rcv_saddr = inet_sk(sk)->inet_rcv_saddr; __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2); int sk_ipv6only = ipv6_only_sock(sk); int sk2_ipv6only = inet_v6_ipv6only(sk2); @@ -63,8 +63,8 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) /* if both are mapped, treat as IPv4 */ if (addr_type == IPV6_ADDR_MAPPED && addr_type2 == IPV6_ADDR_MAPPED) return (!sk2_ipv6only && - (!sk_rcv_saddr || !sk2_rcv_saddr || - sk_rcv_saddr == sk2_rcv_saddr)); + (!sk1_rcv_saddr || !sk2_rcv_saddr || + sk1_rcv_saddr == sk2_rcv_saddr)); if (addr_type2 == IPV6_ADDR_ANY && !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED)) @@ -100,8 +100,8 @@ static inline int compute_score(struct sock *sk, struct net *net, struct inet_sock *inet = inet_sk(sk); score = 0; - if (inet->dport) { - if (inet->dport != sport) + if (inet->inet_dport) { + if (inet->inet_dport != sport) return -1; score++; } @@ -417,8 +417,8 @@ static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk, if (s->sk_hash == num && s->sk_family == PF_INET6) { struct ipv6_pinfo *np = inet6_sk(s); - if (inet->dport) { - if (inet->dport != rmt_port) + if (inet->inet_dport) { + if (inet->inet_dport != rmt_port) continue; } if (!ipv6_addr_any(&np->daddr) && @@ -792,7 +792,7 @@ int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk, if (ipv6_addr_v4mapped(daddr)) { struct sockaddr_in sin; sin.sin_family = AF_INET; - sin.sin_port = sin6 ? sin6->sin6_port : inet->dport; + sin.sin_port = sin6 ? sin6->sin6_port : inet->inet_dport; sin.sin_addr.s_addr = daddr->s6_addr32[3]; msg->msg_name = &sin; msg->msg_namelen = sizeof(sin); @@ -865,7 +865,7 @@ do_udp_sendmsg: if (sk->sk_state != TCP_ESTABLISHED) return -EDESTADDRREQ; - fl.fl_ip_dport = inet->dport; + fl.fl_ip_dport = inet->inet_dport; daddr = &np->daddr; fl.fl6_flowlabel = np->flow_label; connected = 1; @@ -911,7 +911,7 @@ do_udp_sendmsg: fl.fl6_dst.s6_addr[15] = 0x1; /* :: means loopback (BSD'ism) */ if (ipv6_addr_any(&fl.fl6_src) && !ipv6_addr_any(&np->saddr)) ipv6_addr_copy(&fl.fl6_src, &np->saddr); - fl.fl_ip_sport = inet->sport; + fl.fl_ip_sport = inet->inet_sport; /* merge ip6_build_xmit from ip6_output */ if (opt && opt->srcrt) { @@ -1192,8 +1192,8 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket dest = &np->daddr; src = &np->rcv_saddr; - destp = ntohs(inet->dport); - srcp = ntohs(inet->sport); + destp = ntohs(inet->inet_dport); + srcp = ntohs(inet->inet_sport); seq_printf(seq, "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c index ebf00ad5b194..362afbd60a96 100644 --- a/net/netfilter/xt_socket.c +++ b/net/netfilter/xt_socket.c @@ -149,7 +149,7 @@ socket_match(const struct sk_buff *skb, const struct xt_match_param *par, /* Ignore sockets listening on INADDR_ANY */ wildcard = (sk->sk_state != TCP_TIME_WAIT && - inet_sk(sk)->rcv_saddr == 0); + inet_sk(sk)->inet_rcv_saddr == 0); /* Ignore non-transparent sockets, if XT_SOCKET_TRANSPARENT is used */ diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c index 24b743eb0b1b..45474a436862 100644 --- a/net/rds/tcp_listen.c +++ b/net/rds/tcp_listen.c @@ -67,11 +67,11 @@ static int rds_tcp_accept_one(struct socket *sock) inet = inet_sk(new_sock->sk); rdsdebug("accepted tcp %u.%u.%u.%u:%u -> %u.%u.%u.%u:%u\n", - NIPQUAD(inet->saddr), ntohs(inet->sport), - NIPQUAD(inet->daddr), ntohs(inet->dport)); + NIPQUAD(inet->inet_saddr), ntohs(inet->inet_sport), + NIPQUAD(inet->inet_daddr), ntohs(inet->inet_dport)); - conn = rds_conn_create(inet->saddr, inet->daddr, &rds_tcp_transport, - GFP_KERNEL); + conn = rds_conn_create(inet->inet_saddr, inet->inet_daddr, + &rds_tcp_transport, GFP_KERNEL); if (IS_ERR(conn)) { ret = PTR_ERR(conn); goto out; diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 612dc878e05c..d9f4cc2c7869 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -296,19 +296,19 @@ static void sctp_v4_from_sk(union sctp_addr *addr, struct sock *sk) { addr->v4.sin_family = AF_INET; addr->v4.sin_port = 0; - addr->v4.sin_addr.s_addr = inet_sk(sk)->rcv_saddr; + addr->v4.sin_addr.s_addr = inet_sk(sk)->inet_rcv_saddr; } /* Initialize sk->sk_rcv_saddr from sctp_addr. */ static void sctp_v4_to_sk_saddr(union sctp_addr *addr, struct sock *sk) { - inet_sk(sk)->rcv_saddr = addr->v4.sin_addr.s_addr; + inet_sk(sk)->inet_rcv_saddr = addr->v4.sin_addr.s_addr; } /* Initialize sk->sk_daddr from sctp_addr. */ static void sctp_v4_to_sk_daddr(union sctp_addr *addr, struct sock *sk) { - inet_sk(sk)->daddr = addr->v4.sin_addr.s_addr; + inet_sk(sk)->inet_daddr = addr->v4.sin_addr.s_addr; } /* Initialize a sctp_addr from an address parameter. */ @@ -598,7 +598,7 @@ static struct sock *sctp_v4_create_accept_sk(struct sock *sk, newinet = inet_sk(newsk); - newinet->daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr; + newinet->inet_daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr; sk_refcnt_debug_inc(newsk); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 0970e92c6acd..4085db99033d 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -394,7 +394,7 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len) /* Refresh ephemeral port. */ if (!bp->port) - bp->port = inet_sk(sk)->num; + bp->port = inet_sk(sk)->inet_num; /* Add the address to the bind address list. * Use GFP_ATOMIC since BHs will be disabled. @@ -403,7 +403,7 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len) /* Copy back into socket for getsockname() use. */ if (!ret) { - inet_sk(sk)->sport = htons(inet_sk(sk)->num); + inet_sk(sk)->inet_sport = htons(inet_sk(sk)->inet_num); af->to_sk_saddr(addr, sk); } @@ -1115,7 +1115,7 @@ static int __sctp_connect(struct sock* sk, } /* Initialize sk's dport and daddr for getpeername() */ - inet_sk(sk)->dport = htons(asoc->peer.port); + inet_sk(sk)->inet_dport = htons(asoc->peer.port); af = sctp_get_af_specific(sa_addr->sa.sa_family); af->to_sk_daddr(sa_addr, sk); sk->sk_err = 0; @@ -5851,7 +5851,7 @@ pp_not_found: */ success: if (!sctp_sk(sk)->bind_hash) { - inet_sk(sk)->num = snum; + inet_sk(sk)->inet_num = snum; sk_add_bind_node(sk, &pp->owner); sctp_sk(sk)->bind_hash = pp; } @@ -5923,7 +5923,7 @@ SCTP_STATIC int sctp_listen_start(struct sock *sk, int backlog) if (sctp_autobind(sk)) return -EAGAIN; } else { - if (sctp_get_port(sk, inet_sk(sk)->num)) { + if (sctp_get_port(sk, inet_sk(sk)->inet_num)) { sk->sk_state = SCTP_SS_CLOSED; return -EADDRINUSE; } @@ -6094,14 +6094,14 @@ static void sctp_bucket_destroy(struct sctp_bind_bucket *pp) static inline void __sctp_put_port(struct sock *sk) { struct sctp_bind_hashbucket *head = - &sctp_port_hashtable[sctp_phashfn(inet_sk(sk)->num)]; + &sctp_port_hashtable[sctp_phashfn(inet_sk(sk)->inet_num)]; struct sctp_bind_bucket *pp; sctp_spin_lock(&head->lock); pp = sctp_sk(sk)->bind_hash; __sk_del_bind_node(sk); sctp_sk(sk)->bind_hash = NULL; - inet_sk(sk)->num = 0; + inet_sk(sk)->inet_num = 0; sctp_bucket_destroy(pp); sctp_spin_unlock(&head->lock); } @@ -6128,7 +6128,7 @@ static int sctp_autobind(struct sock *sk) /* Initialize a local sockaddr structure to INADDR_ANY. */ af = sctp_sk(sk)->pf->af; - port = htons(inet_sk(sk)->num); + port = htons(inet_sk(sk)->inet_num); af->inaddr_any(&autoaddr, port); return sctp_do_bind(sk, &autoaddr, af->sockaddr_len); @@ -6697,12 +6697,12 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk, /* Initialize sk's sport, dport, rcv_saddr and daddr for * getsockname() and getpeername() */ - newinet->sport = inet->sport; - newinet->saddr = inet->saddr; - newinet->rcv_saddr = inet->rcv_saddr; - newinet->dport = htons(asoc->peer.port); + newinet->inet_sport = inet->inet_sport; + newinet->inet_saddr = inet->inet_saddr; + newinet->inet_rcv_saddr = inet->inet_rcv_saddr; + newinet->inet_dport = htons(asoc->peer.port); newinet->pmtudisc = inet->pmtudisc; - newinet->id = asoc->next_tsn ^ jiffies; + newinet->inet_id = asoc->next_tsn ^ jiffies; newinet->uc_ttl = inet->uc_ttl; newinet->mc_loop = 1; @@ -6741,13 +6741,13 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, newsp->hmac = NULL; /* Hook this new socket in to the bind_hash list. */ - head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->num)]; + head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->inet_num)]; sctp_local_bh_disable(); sctp_spin_lock(&head->lock); pp = sctp_sk(oldsk)->bind_hash; sk_add_bind_node(newsk, &pp->owner); sctp_sk(newsk)->bind_hash = pp; - inet_sk(newsk)->num = inet_sk(oldsk)->num; + inet_sk(newsk)->inet_num = inet_sk(oldsk)->inet_num; sctp_spin_unlock(&head->lock); sctp_local_bh_enable(); diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index ccc5e83cae5d..c2a17876defd 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -272,14 +272,14 @@ static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining) case PF_INET: len = snprintf(buf, remaining, "ipv4 %s %pI4 %d\n", proto_name, - &inet_sk(sk)->rcv_saddr, - inet_sk(sk)->num); + &inet_sk(sk)->inet_rcv_saddr, + inet_sk(sk)->inet_num); break; case PF_INET6: len = snprintf(buf, remaining, "ipv6 %s %pI6 %d\n", proto_name, &inet6_sk(sk)->rcv_saddr, - inet_sk(sk)->num); + inet_sk(sk)->inet_num); break; default: len = snprintf(buf, remaining, "*unknown-%d*\n", @@ -1311,7 +1311,7 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv, /* Register socket with portmapper */ if (*errp >= 0 && pmap_register) *errp = svc_register(serv, inet->sk_family, inet->sk_protocol, - ntohs(inet_sk(inet)->sport)); + ntohs(inet_sk(inet)->inet_sport)); if (*errp < 0) { kfree(svsk); diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 3bb90b6f1dd3..e04566a2c4e5 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -273,11 +273,11 @@ static void dump_common_audit_data(struct audit_buffer *ab, case AF_INET: { struct inet_sock *inet = inet_sk(sk); - print_ipv4_addr(ab, inet->rcv_saddr, - inet->sport, + print_ipv4_addr(ab, inet->inet_rcv_saddr, + inet->inet_sport, "laddr", "lport"); - print_ipv4_addr(ab, inet->daddr, - inet->dport, + print_ipv4_addr(ab, inet->inet_daddr, + inet->inet_dport, "faddr", "fport"); break; } @@ -286,10 +286,10 @@ static void dump_common_audit_data(struct audit_buffer *ab, struct ipv6_pinfo *inet6 = inet6_sk(sk); print_ipv6_addr(ab, &inet6->rcv_saddr, - inet->sport, + inet->inet_sport, "laddr", "lport"); print_ipv6_addr(ab, &inet6->daddr, - inet->dport, + inet->inet_dport, "faddr", "fport"); break; } -- cgit v1.2.3 From 4c2b1a11646bf74e2926ce8b13a21884adc1e05c Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Wed, 2 Sep 2009 15:36:05 -0700 Subject: wimax: allow specifying debug levels as command line option Add "debug" module options to all the wimax modules (including drivers) so that the debug levels can be set upon kernel boot or module load time. This is needed as currently there was a limitation where the debug levels could only be set when a device was succesfully enumerated. This made it difficult to debug issues that made a device not probe properly. Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/driver.c | 10 ++++++ drivers/net/wimax/i2400m/sdio.c | 10 ++++++ drivers/net/wimax/i2400m/usb.c | 9 +++++ include/linux/wimax/debug.h | 72 +++++++++++++++++++++++++++++++++++++++ net/wimax/stack.c | 11 ++++++ 5 files changed, 112 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index 7ba00de5dd9b..e3b2c246cad7 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -90,6 +90,14 @@ MODULE_PARM_DESC(power_save_disabled, "False by default (so the device is told to do power " "saving)."); +static char i2400m_debug_params[128]; +module_param_string(debug, i2400m_debug_params, sizeof(i2400m_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); + /** * i2400m_queue_work - schedule work on a i2400m's queue * @@ -794,6 +802,8 @@ size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); static int __init i2400m_driver_init(void) { + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400m_debug_params, + "i2400m.debug"); return 0; } module_init(i2400m_driver_init); diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index 7c1b843b63e9..2d2cc5ac6d86 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -71,6 +71,14 @@ static int ioe_timeout = 2; module_param(ioe_timeout, int, 0); +static char i2400ms_debug_params[128]; +module_param_string(debug, i2400ms_debug_params, sizeof(i2400ms_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); + /* Our firmware file name list */ static const char *i2400ms_bus_fw_names[] = { #define I2400MS_FW_FILE_NAME "i2400m-fw-sdio-1.3.sbcf" @@ -559,6 +567,8 @@ struct sdio_driver i2400m_sdio_driver = { static int __init i2400ms_driver_init(void) { + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400ms_debug_params, + "i2400m_sdio.debug"); return sdio_register_driver(&i2400m_sdio_driver); } module_init(i2400ms_driver_init); diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index a5879e21bbf3..063422290a43 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -71,6 +71,13 @@ #define D_SUBMODULE usb #include "usb-debug-levels.h" +static char i2400mu_debug_params[128]; +module_param_string(debug, i2400mu_debug_params, sizeof(i2400mu_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); /* Our firmware file name */ static const char *i2400mu_bus_fw_names[] = { @@ -633,6 +640,8 @@ struct usb_driver i2400mu_driver = { static int __init i2400mu_driver_init(void) { + d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400mu_debug_params, + "i2400m_usb.debug"); return usb_register(&i2400mu_driver); } module_init(i2400mu_driver_init); diff --git a/include/linux/wimax/debug.h b/include/linux/wimax/debug.h index c703e0340423..db8096e88533 100644 --- a/include/linux/wimax/debug.h +++ b/include/linux/wimax/debug.h @@ -450,4 +450,76 @@ do { \ }) +static inline +void d_submodule_set(struct d_level *d_level, size_t d_level_size, + const char *submodule, u8 level, const char *tag) +{ + struct d_level *itr, *top; + int index = -1; + + for (itr = d_level, top = itr + d_level_size; itr < top; itr++) { + index++; + if (itr->name == NULL) { + printk(KERN_ERR "%s: itr->name NULL?? (%p, #%d)\n", + tag, itr, index); + continue; + } + if (!strcmp(itr->name, submodule)) { + itr->level = level; + return; + } + } + printk(KERN_ERR "%s: unknown submodule %s\n", tag, submodule); +} + + +/** + * d_parse_params - Parse a string with debug parameters from the + * command line + * + * @d_level: level structure (D_LEVEL) + * @d_level_size: number of items in the level structure + * (D_LEVEL_SIZE). + * @_params: string with the parameters; this is a space (not tab!) + * separated list of NAME:VALUE, where value is the debug level + * and NAME is the name of the submodule. + * @tag: string for error messages (example: MODULE.ARGNAME). + */ +static inline +void d_parse_params(struct d_level *d_level, size_t d_level_size, + const char *_params, const char *tag) +{ + char submodule[130], *params, *params_orig, *token, *colon; + unsigned level, tokens; + + if (_params == NULL) + return; + params_orig = kstrdup(_params, GFP_KERNEL); + params = params_orig; + while (1) { + token = strsep(¶ms, " "); + if (token == NULL) + break; + if (*token == '\0') /* eat joint spaces */ + continue; + /* kernel's sscanf %s eats until whitespace, so we + * replace : by \n so it doesn't get eaten later by + * strsep */ + colon = strchr(token, ':'); + if (colon != NULL) + *colon = '\n'; + tokens = sscanf(token, "%s\n%u", submodule, &level); + if (colon != NULL) + *colon = ':'; /* set back, for error messages */ + if (tokens == 2) + d_submodule_set(d_level, d_level_size, + submodule, level, tag); + else + printk(KERN_ERR "%s: can't parse '%s' as a " + "SUBMODULE:LEVEL (%d tokens)\n", + tag, token, tokens); + } + kfree(params_orig); +} + #endif /* #ifndef __debug__h__ */ diff --git a/net/wimax/stack.c b/net/wimax/stack.c index 79fb7d7c640f..c8866412f830 100644 --- a/net/wimax/stack.c +++ b/net/wimax/stack.c @@ -60,6 +60,14 @@ #define D_SUBMODULE stack #include "debug-levels.h" +static char wimax_debug_params[128]; +module_param_string(debug, wimax_debug_params, sizeof(wimax_debug_params), + 0644); +MODULE_PARM_DESC(debug, + "String of space-separated NAME:VALUE pairs, where NAMEs " + "are the different debug submodules and VALUE are the " + "initial debug value to set."); + /* * Authoritative source for the RE_STATE_CHANGE attribute policy * @@ -562,6 +570,9 @@ int __init wimax_subsys_init(void) int result, cnt; d_fnstart(4, NULL, "()\n"); + d_parse_params(D_LEVEL, D_LEVEL_SIZE, wimax_debug_params, + "wimax.debug"); + snprintf(wimax_gnl_family.name, sizeof(wimax_gnl_family.name), "WiMAX"); result = genl_register_family(&wimax_gnl_family); -- cgit v1.2.3 From 32742e6158657f19ad31653705bef56d983508e7 Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Thu, 3 Sep 2009 15:56:40 -0700 Subject: wimax/i2400m: decide properly if using signed vs non-signed firmware loading The i2400m based devices can boot two main types of firmware images: signed and non-signed. Signed images have signature data included that must match that of a certificate stored in the device. Currently the code is making the decission on what type of firmware load (signed vs non-signed) is going to be loaded based on a hardcoded decission in __i2400m_ack_verify(), based on the barker the device sent upon boot. This is not flexible enough as future hardware will emit more barkers; thus the bit has to be set in a place where there is better knowledge of what is going on. This will be done in follow-up commits -- however this patch paves the way for it. So the querying of the mode is packed into i2400m_boot_is_signed(); the main changes are just using i2400m_boot_is_signed() to determine the method to follow and setting i2400m->sboot in i2400m_is_boot_barker(). The modifications in i2400m_dnload_init() and i2400m_dnload_finalize() are just reorganizing the order of the if blocks and thus look larger than they really are. Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/fw.c | 35 +++++++++++++++++++++-------------- include/linux/wimax/i2400m.h | 10 ---------- 2 files changed, 21 insertions(+), 24 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 92d4d605dc2d..c962a8d8df7e 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -508,6 +508,17 @@ error_send: } +/* + * Indicate if the device emitted a reboot barker that indicates + * "signed boot" + */ +static +unsigned i2400m_boot_is_signed(struct i2400m *i2400m) +{ + return likely(i2400m->sboot); +} + + /* * Do the final steps of uploading firmware * @@ -529,7 +540,7 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, d_fnstart(3, dev, "offset %zu\n", offset); cmd = (void *) bcf + offset; - if (i2400m->sboot == 0) { + if (i2400m_boot_is_signed(i2400m) == 0) { struct i2400m_bootrom_header jump_ack; d_printf(1, dev, "unsecure boot, jumping to 0x%08x\n", le32_to_cpu(cmd->target_addr)); @@ -846,28 +857,24 @@ int i2400m_dnload_init(struct i2400m *i2400m, const struct i2400m_bcf_hdr *bcf) { int result; struct device *dev = i2400m_dev(i2400m); - u32 module_id = le32_to_cpu(bcf->module_id); - if (i2400m->sboot == 0 - && (module_id & I2400M_BCF_MOD_ID_POKES) == 0) { - /* non-signed boot process without pokes */ - result = i2400m_dnload_init_nonsigned(i2400m); + if (i2400m_boot_is_signed(i2400m)) { + d_printf(1, dev, "signed boot\n"); + result = i2400m_dnload_init_signed(i2400m, bcf); if (result == -ERESTARTSYS) return result; if (result < 0) - dev_err(dev, "fw %s: non-signed download " + dev_err(dev, "firmware %s: signed boot download " "initialization failed: %d\n", i2400m->fw_name, result); - } else if (i2400m->sboot == 0 - && (module_id & I2400M_BCF_MOD_ID_POKES)) { - /* non-signed boot process with pokes, nothing to do */ - result = 0; - } else { /* signed boot process */ - result = i2400m_dnload_init_signed(i2400m, bcf); + } else { + /* non-signed boot process without pokes */ + d_printf(1, dev, "non-signed boot\n"); + result = i2400m_dnload_init_nonsigned(i2400m); if (result == -ERESTARTSYS) return result; if (result < 0) - dev_err(dev, "fw %s: signed boot download " + dev_err(dev, "firmware %s: non-signed download " "initialization failed: %d\n", i2400m->fw_name, result); } diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h index 433693ef2bb0..d6e2a3595682 100644 --- a/include/linux/wimax/i2400m.h +++ b/include/linux/wimax/i2400m.h @@ -168,16 +168,6 @@ enum i2400m_brh { }; -/* Constants for bcf->module_id */ -enum i2400m_bcf_mod_id { - /* Firmware file carries its own pokes -- pokes are a set of - * magical values that have to be written in certain memory - * addresses to get the device up and ready for firmware - * download when it is in non-signed boot mode. */ - I2400M_BCF_MOD_ID_POKES = 0x000000001, -}; - - /** * i2400m_bootrom_header - Header for a boot-mode command * -- cgit v1.2.3 From 923d708fed9d47c7b4d67694500d766337663e29 Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Fri, 4 Sep 2009 14:50:59 -0700 Subject: wimax/i2400m: fix reboot echo/ack barker deadlock The i2400m based devices can get in a sort of a deadlock some times; when they boot, they send a reboot "barker" (a magic number) and then the driver has to echo that same barker to ack reception (echo/ack). Then the device does a final ack by sending an ACK barker. The first time this happens, we don't know ahead of time with barker the device is going to send, as different device models and SKUs will send different barker depending on the EEPROM programming. If the device has sent the barker before the driver has been able to read it, the driver looses, as it doesn't know which barker it has to echo/ack back. With older devices, we tried a couple of combinations and that always worked; but now, with adding support for more, in which we have an unlimited number of new barkers, that is not an option. So we rework said case so that when the device gets stuck, we just cycle through all the known types until one forces the device to send an ack. Otherwise, the driver gives up and aborts. Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/fw.c | 63 ++++++++++++++++++++++++++++++++++--------- include/linux/wimax/i2400m.h | 2 +- 2 files changed, 52 insertions(+), 13 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 55fe011a9633..eef236d85af3 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -812,7 +812,7 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * * @i2400m: device descriptor * @flags: - * I2400M_BRI_SOFT: a reboot notification has been seen + * I2400M_BRI_SOFT: a reboot barker has been seen * already, so don't wait for it. * * I2400M_BRI_NO_REBOOT: Don't send a reboot command, but wait @@ -829,8 +829,9 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * main phases to this: * * a. (1) send a reboot command and (2) get a reboot barker - * b. (1) ack the reboot sending a reboot barker and (2) getting an - * ack barker in return + * + * b. (1) echo/ack the reboot sending the reboot barker back and (2) + * getting an ack barker in return * * We want to skip (a) in some cases [soft]. The state machine is * horrible, but it is basically: on each phase, send what has to be @@ -838,6 +839,16 @@ int i2400m_dnload_finalize(struct i2400m *i2400m, * have to backtrack and retry, so we keep a max tries counter for * that. * + * It sucks because we don't know ahead of time which is going to be + * the reboot barker (the device might send different ones depending + * on its EEPROM config) and once the device reboots and waits for the + * echo/ack reboot barker being sent back, it doesn't understand + * anything else. So we can be left at the point where we don't know + * what to send to it -- cold reset and bus reset seem to have little + * effect. So the function iterates (in this case) through all the + * known barkers and tries them all until an ACK is + * received. Otherwise, it gives up. + * * If we get a timeout after sending a warm reset, we do it again. */ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) @@ -848,6 +859,7 @@ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) struct i2400m_bootrom_header ack; int count = i2400m->bus_bm_retries; int ack_timeout_cnt = 1; + unsigned i; BUILD_BUG_ON(sizeof(*cmd) != sizeof(i2400m_barker_db[0].data)); BUILD_BUG_ON(sizeof(ack) != sizeof(i2400m_ACK_BARKER)); @@ -858,6 +870,7 @@ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags) if (flags & I2400M_BRI_SOFT) goto do_reboot_ack; do_reboot: + ack_timeout_cnt = 1; if (--count < 0) goto error_timeout; d_printf(4, dev, "device reboot: reboot command [%d # left]\n", @@ -869,22 +882,47 @@ do_reboot: flags &= ~I2400M_BRI_NO_REBOOT; switch (result) { case -ERESTARTSYS: + /* + * at this point, i2400m_bm_cmd(), through + * __i2400m_bm_ack_process(), has updated + * i2400m->barker and we are good to go. + */ d_printf(4, dev, "device reboot: got reboot barker\n"); break; case -EISCONN: /* we don't know how it got here...but we follow it */ d_printf(4, dev, "device reboot: got ack barker - whatever\n"); goto do_reboot; - case -ETIMEDOUT: /* device has timed out, we might be in boot - * mode already and expecting an ack, let's try - * that */ - if (i2400m->barker == NULL) { - dev_info(dev, "warm reset timed out, unknown barker " - "type, rebooting\n"); - goto do_reboot; - } else { - dev_info(dev, "warm reset timed out, trying an ack\n"); + case -ETIMEDOUT: + /* + * Device has timed out, we might be in boot mode + * already and expecting an ack; if we don't know what + * the barker is, we just send them all. Cold reset + * and bus reset don't work. Beats me. + */ + if (i2400m->barker != NULL) { + dev_err(dev, "device boot: reboot barker timed out, " + "trying (set) %08x echo/ack\n", + le32_to_cpu(i2400m->barker->data[0])); goto do_reboot_ack; } + for (i = 0; i < i2400m_barker_db_used; i++) { + struct i2400m_barker_db *barker = &i2400m_barker_db[i]; + memcpy(cmd, barker->data, sizeof(barker->data)); + result = i2400m_bm_cmd(i2400m, cmd, sizeof(*cmd), + &ack, sizeof(ack), + I2400M_BM_CMD_RAW); + if (result == -EISCONN) { + dev_warn(dev, "device boot: got ack barker " + "after sending echo/ack barker " + "#%d/%08x; rebooting j.i.c.\n", + i, le32_to_cpu(barker->data[0])); + flags &= ~I2400M_BRI_NO_REBOOT; + goto do_reboot; + } + } + dev_err(dev, "device boot: tried all the echo/acks, could " + "not get device to respond; giving up"); + result = -ESHUTDOWN; case -EPROTO: case -ESHUTDOWN: /* dev is gone */ case -EINTR: /* user cancelled */ @@ -892,6 +930,7 @@ do_reboot: default: dev_err(dev, "device reboot: error %d while waiting " "for reboot barker - rebooting\n", result); + d_dump(1, dev, &ack, result); goto do_reboot; } /* At this point we ack back with 4 REBOOT barkers and expect diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h index d6e2a3595682..fd5af05083cb 100644 --- a/include/linux/wimax/i2400m.h +++ b/include/linux/wimax/i2400m.h @@ -138,7 +138,7 @@ struct i2400m_bcf_hdr { __le32 module_id; __le32 module_vendor; __le32 date; /* BCD YYYMMDD */ - __le32 size; + __le32 size; /* in dwords */ __le32 key_size; /* in dwords */ __le32 modulus_size; /* in dwords */ __le32 exponent_size; /* in dwords */ -- cgit v1.2.3 From f8fc3295570115267ce1ce901f362d13d194aefc Mon Sep 17 00:00:00 2001 From: Cindy H Kao Date: Fri, 4 Sep 2009 17:38:46 -0700 Subject: wimax/iwmc3200: add new sdio device ID to support iwmc3200 2.5GHz sku Different sdio device IDs are designated to support different intel wimax silicon sku. The new macro SDIO_DEVICE_ID_IWMC3200_WIMAX_2G5(0x1407) is added to support iwmc3200 2.5GHz sku. The existing SDIO_DEVICE_ID_IWMC3200_WIMAX(0x1402) is for iwmc3200 general sku. Signed-off-by: Cindy H Kao Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/sdio.c | 2 ++ include/linux/mmc/sdio_ids.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index 2d2cc5ac6d86..de158ee0c32c 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -550,6 +550,8 @@ const struct sdio_device_id i2400ms_sdio_ids[] = { /* Intel: i2400m WiMAX (iwmc3200) over SDIO */ { SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, + SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX_2G5) }, { /* end: all zeroes */ }, }; MODULE_DEVICE_TABLE(sdio, i2400ms_sdio_ids); diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h index 2dbfb5a05994..33b2ea09a4ad 100644 --- a/include/linux/mmc/sdio_ids.h +++ b/include/linux/mmc/sdio_ids.h @@ -28,6 +28,7 @@ #define SDIO_DEVICE_ID_INTEL_IWMC3200TOP 0x1404 #define SDIO_DEVICE_ID_INTEL_IWMC3200GPS 0x1405 #define SDIO_DEVICE_ID_INTEL_IWMC3200BT 0x1406 +#define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX_2G5 0x1407 #define SDIO_VENDOR_ID_MARVELL 0x02df #define SDIO_DEVICE_ID_MARVELL_LIBERTAS 0x9103 -- cgit v1.2.3 From 7329012e673231dee9a21567cfb9881f5ea462ba Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Wed, 12 Aug 2009 11:29:46 -0700 Subject: wimax/i6x50: add Intel WiFi/WiMAX Link 6050 Series support Add support for the WiMAX device in the Intel WiFi/WiMAX Link 6050 Series; this involves: - adding the device ID to bind to and an endpoint mapping for the driver to use. - at probe() time, some things are set depending on the device id: + the list of firmware names to try + mapping of endpoints Signed-off-by: Dirk Brandewie Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/fw.c | 3 +++ drivers/net/wimax/i2400m/i2400m-usb.h | 3 +++ drivers/net/wimax/i2400m/usb.c | 26 +++++++++++++++++++------- include/linux/wimax/i2400m.h | 1 + 4 files changed, 26 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 84a39c30c3d3..5719f4a4080f 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -277,6 +277,9 @@ int i2400m_barker_db_known_barkers(void) result = i2400m_barker_db_add(I2400M_SBOOT_BARKER); if (result < 0) goto error_add; + result = i2400m_barker_db_add(I2400M_SBOOT_BARKER_6050); + if (result < 0) + goto error_add; error_add: return result; } diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h index f73a067e0668..5cc0f279417e 100644 --- a/drivers/net/wimax/i2400m/i2400m-usb.h +++ b/drivers/net/wimax/i2400m/i2400m-usb.h @@ -148,6 +148,9 @@ enum { I2400MU_MAX_NOTIFICATION_LEN = 256, I2400MU_BLK_SIZE = 16, I2400MU_PL_SIZE_MAX = 0x3EFF, + + /* Device IDs */ + USB_DEVICE_ID_I6050 = 0x0186, }; diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index 063422290a43..77d08d928274 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -80,11 +80,16 @@ MODULE_PARM_DESC(debug, "initial debug value to set."); /* Our firmware file name */ -static const char *i2400mu_bus_fw_names[] = { +static const char *i2400mu_bus_fw_names_5x50[] = { #define I2400MU_FW_FILE_NAME_v1_4 "i2400m-fw-usb-1.4.sbcf" I2400MU_FW_FILE_NAME_v1_4, -#define I2400MU_FW_FILE_NAME_v1_3 "i2400m-fw-usb-1.3.sbcf" - I2400MU_FW_FILE_NAME_v1_3, + NULL, +}; + + +static const char *i2400mu_bus_fw_names_6050[] = { +#define I6050U_FW_FILE_NAME_v1_5 "i6050-fw-usb-1.5.sbcf" + I6050U_FW_FILE_NAME_v1_5, NULL, }; @@ -418,10 +423,16 @@ int i2400mu_probe(struct usb_interface *iface, i2400m->bus_bm_retries = I2400M_USB_BOOT_RETRIES; i2400m->bus_bm_cmd_send = i2400mu_bus_bm_cmd_send; i2400m->bus_bm_wait_for_ack = i2400mu_bus_bm_wait_for_ack; - i2400m->bus_fw_names = i2400mu_bus_fw_names; i2400m->bus_bm_mac_addr_impaired = 0; - { + if (id->idProduct == USB_DEVICE_ID_I6050) { + i2400m->bus_fw_names = i2400mu_bus_fw_names_6050; + i2400mu->endpoint_cfg.bulk_out = 0; + i2400mu->endpoint_cfg.notification = 3; + i2400mu->endpoint_cfg.reset_cold = 2; + i2400mu->endpoint_cfg.bulk_in = 1; + } else { + i2400m->bus_fw_names = i2400mu_bus_fw_names_5x50; i2400mu->endpoint_cfg.bulk_out = 0; i2400mu->endpoint_cfg.notification = 1; i2400mu->endpoint_cfg.reset_cold = 2; @@ -614,6 +625,7 @@ out: static struct usb_device_id i2400mu_id_table[] = { + { USB_DEVICE(0x8086, USB_DEVICE_ID_I6050) }, { USB_DEVICE(0x8086, 0x0181) }, { USB_DEVICE(0x8086, 0x1403) }, { USB_DEVICE(0x8086, 0x1405) }, @@ -656,7 +668,7 @@ void __exit i2400mu_driver_exit(void) module_exit(i2400mu_driver_exit); MODULE_AUTHOR("Intel Corporation "); -MODULE_DESCRIPTION("Intel 2400M WiMAX networking for USB"); +MODULE_DESCRIPTION("Driver for USB based Intel Wireless WiMAX Connection 2400M " + "(5x50 & 6050)"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE(I2400MU_FW_FILE_NAME_v1_4); -MODULE_FIRMWARE(I2400MU_FW_FILE_NAME_v1_3); diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h index fd5af05083cb..62d356153565 100644 --- a/include/linux/wimax/i2400m.h +++ b/include/linux/wimax/i2400m.h @@ -266,6 +266,7 @@ enum { I2400M_WARM_RESET_BARKER = 0x50f750f7, I2400M_NBOOT_BARKER = 0xdeadbeef, I2400M_SBOOT_BARKER = 0x0ff1c1a1, + I2400M_SBOOT_BARKER_6050 = 0x80000001, I2400M_ACK_BARKER = 0xfeedbabe, I2400M_D2H_MSG_BARKER = 0xbeefbabe, }; -- cgit v1.2.3 From 7e75f93eda027d9f9e0203ee6ffd210ea92e98f3 Mon Sep 17 00:00:00 2001 From: jamal Date: Mon, 19 Oct 2009 02:17:56 +0000 Subject: pkt_sched: ingress socket filter by mark Allow bpf to set a filter to drop packets that dont match a specific mark Signed-off-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- include/linux/filter.h | 3 ++- net/core/filter.c | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/filter.h b/include/linux/filter.h index 1354aaf6abbe..909193e25395 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -123,7 +123,8 @@ struct sock_fprog /* Required for SO_ATTACH_FILTER. */ #define SKF_AD_IFINDEX 8 #define SKF_AD_NLATTR 12 #define SKF_AD_NLATTR_NEST 16 -#define SKF_AD_MAX 20 +#define SKF_AD_MARK 20 +#define SKF_AD_MAX 24 #define SKF_NET_OFF (-0x100000) #define SKF_LL_OFF (-0x200000) diff --git a/net/core/filter.c b/net/core/filter.c index d1d779ca096d..e3987e1d4839 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -303,6 +303,9 @@ load_b: case SKF_AD_IFINDEX: A = skb->dev->ifindex; continue; + case SKF_AD_MARK: + A = skb->mark; + continue; case SKF_AD_NLATTR: { struct nlattr *nla; -- cgit v1.2.3 From 7b6856a0296a8f187bb88ba31fa83a08abba7966 Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Tue, 20 Oct 2009 00:08:01 -0700 Subject: can: provide library functions for skb allocation This patch makes the private functions alloc_can_skb() and alloc_can_err_skb() of the at91_can driver public and adapts all drivers to use these. While making the patch I realized, that the skb's are *not* setup consistently. It's now done as shown below: skb->protocol = htons(ETH_P_CAN); skb->pkt_type = PACKET_BROADCAST; skb->ip_summed = CHECKSUM_UNNECESSARY; *cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); memset(*cf, 0, sizeof(struct can_frame)); The frame is zeroed out to avoid uninitialized data to be passed to user space. Some drivers or library code did not set "pkt_type" or "ip_summed". Also, "__constant_htons()" should not be used for runtime invocations, as pointed out by David Miller. Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller --- drivers/net/can/at91_can.c | 32 ----------------------------- drivers/net/can/dev.c | 42 ++++++++++++++++++++++++++++++++------- drivers/net/can/sja1000/sja1000.c | 12 ++--------- drivers/net/can/ti_hecc.c | 17 ++++------------ drivers/net/can/usb/ems_usb.c | 16 ++------------- include/linux/can/dev.h | 4 ++++ 6 files changed, 47 insertions(+), 76 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index b13fd9114130..cbe3fce53e3b 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -221,38 +221,6 @@ static inline void set_mb_mode(const struct at91_priv *priv, unsigned int mb, set_mb_mode_prio(priv, mb, mode, 0); } -static struct sk_buff *alloc_can_skb(struct net_device *dev, - struct can_frame **cf) -{ - struct sk_buff *skb; - - skb = netdev_alloc_skb(dev, sizeof(struct can_frame)); - if (unlikely(!skb)) - return NULL; - - skb->protocol = htons(ETH_P_CAN); - skb->ip_summed = CHECKSUM_UNNECESSARY; - *cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - - return skb; -} - -static struct sk_buff *alloc_can_err_skb(struct net_device *dev, - struct can_frame **cf) -{ - struct sk_buff *skb; - - skb = alloc_can_skb(dev, cf); - if (unlikely(!skb)) - return NULL; - - memset(*cf, 0, sizeof(struct can_frame)); - (*cf)->can_id = CAN_ERR_FLAG; - (*cf)->can_dlc = CAN_ERR_DLC; - - return skb; -} - /* * Swtich transceiver on or off */ diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 39b99f57c265..c3db111d2ff5 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -366,17 +366,12 @@ void can_restart(unsigned long data) can_flush_echo_skb(dev); /* send restart message upstream */ - skb = dev_alloc_skb(sizeof(struct can_frame)); + skb = alloc_can_err_skb(dev, &cf); if (skb == NULL) { err = -ENOMEM; goto restart; } - skb->dev = dev; - skb->protocol = htons(ETH_P_CAN); - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); - cf->can_id = CAN_ERR_FLAG | CAN_ERR_RESTARTED; - cf->can_dlc = CAN_ERR_DLC; + cf->can_id |= CAN_ERR_RESTARTED; netif_rx(skb); @@ -449,6 +444,39 @@ static void can_setup(struct net_device *dev) dev->features = NETIF_F_NO_CSUM; } +struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf) +{ + struct sk_buff *skb; + + skb = netdev_alloc_skb(dev, sizeof(struct can_frame)); + if (unlikely(!skb)) + return NULL; + + skb->protocol = htons(ETH_P_CAN); + skb->pkt_type = PACKET_BROADCAST; + skb->ip_summed = CHECKSUM_UNNECESSARY; + *cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); + memset(*cf, 0, sizeof(struct can_frame)); + + return skb; +} +EXPORT_SYMBOL_GPL(alloc_can_skb); + +struct sk_buff *alloc_can_err_skb(struct net_device *dev, struct can_frame **cf) +{ + struct sk_buff *skb; + + skb = alloc_can_skb(dev, cf); + if (unlikely(!skb)) + return NULL; + + (*cf)->can_id = CAN_ERR_FLAG; + (*cf)->can_dlc = CAN_ERR_DLC; + + return skb; +} +EXPORT_SYMBOL_GPL(alloc_can_err_skb); + /* * Allocate and setup space for the CAN network device */ diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 96d8be4253f8..1a9c5958bbd7 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -296,11 +296,9 @@ static void sja1000_rx(struct net_device *dev) uint8_t dlc; int i; - skb = dev_alloc_skb(sizeof(struct can_frame)); + skb = alloc_can_skb(dev, &cf); if (skb == NULL) return; - skb->dev = dev; - skb->protocol = htons(ETH_P_CAN); fi = priv->read_reg(priv, REG_FI); dlc = fi & 0x0F; @@ -351,15 +349,9 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) enum can_state state = priv->can.state; uint8_t ecc, alc; - skb = dev_alloc_skb(sizeof(struct can_frame)); + skb = alloc_can_err_skb(dev, &cf); if (skb == NULL) return -ENOMEM; - skb->dev = dev; - skb->protocol = htons(ETH_P_CAN); - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); - cf->can_id = CAN_ERR_FLAG; - cf->can_dlc = CAN_ERR_DLC; if (isrc & IRQ_DOI) { /* data overrun interrupt */ diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 23a7128e4eb7..07e8016b17ec 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -535,18 +535,15 @@ static int ti_hecc_rx_pkt(struct ti_hecc_priv *priv, int mbxno) u32 data, mbx_mask; unsigned long flags; - skb = netdev_alloc_skb(priv->ndev, sizeof(struct can_frame)); + skb = alloc_can_skb(priv->ndev, &cf); if (!skb) { if (printk_ratelimit()) dev_err(priv->ndev->dev.parent, - "ti_hecc_rx_pkt: netdev_alloc_skb() failed\n"); + "ti_hecc_rx_pkt: alloc_can_skb() failed\n"); return -ENOMEM; } - skb->protocol = __constant_htons(ETH_P_CAN); - skb->ip_summed = CHECKSUM_UNNECESSARY; mbx_mask = BIT(mbxno); - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); data = hecc_read_mbx(priv, mbxno, HECC_CANMID); if (data & HECC_CANMID_IDE) cf->can_id = (data & CAN_EFF_MASK) | CAN_EFF_FLAG; @@ -656,19 +653,13 @@ static int ti_hecc_error(struct net_device *ndev, int int_status, struct sk_buff *skb; /* propogate the error condition to the can stack */ - skb = netdev_alloc_skb(ndev, sizeof(struct can_frame)); + skb = alloc_can_err_skb(ndev, &cf); if (!skb) { if (printk_ratelimit()) dev_err(priv->ndev->dev.parent, - "ti_hecc_error: netdev_alloc_skb() failed\n"); + "ti_hecc_error: alloc_can_err_skb() failed\n"); return -ENOMEM; } - skb->protocol = __constant_htons(ETH_P_CAN); - skb->ip_summed = CHECKSUM_UNNECESSARY; - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); - cf->can_id = CAN_ERR_FLAG; - cf->can_dlc = CAN_ERR_DLC; if (int_status & HECC_CANGIF_WLIF) { /* warning level int */ if ((int_status & HECC_CANGIF_BOIF) == 0) { diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index a65f56a9cd3d..3685f3e42d12 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -311,14 +311,10 @@ static void ems_usb_rx_can_msg(struct ems_usb *dev, struct ems_cpc_msg *msg) int i; struct net_device_stats *stats = &dev->netdev->stats; - skb = netdev_alloc_skb(dev->netdev, sizeof(struct can_frame)); + skb = alloc_can_skb(dev->netdev, &cf); if (skb == NULL) return; - skb->protocol = htons(ETH_P_CAN); - - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - cf->can_id = msg->msg.can_msg.id; cf->can_dlc = min_t(u8, msg->msg.can_msg.length, 8); @@ -346,18 +342,10 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) struct sk_buff *skb; struct net_device_stats *stats = &dev->netdev->stats; - skb = netdev_alloc_skb(dev->netdev, sizeof(struct can_frame)); + skb = alloc_can_err_skb(dev->netdev, &cf); if (skb == NULL) return; - skb->protocol = htons(ETH_P_CAN); - - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); - - cf->can_id = CAN_ERR_FLAG; - cf->can_dlc = CAN_ERR_DLC; - if (msg->type == CPC_MSG_TYPE_CAN_STATE) { u8 state = msg->msg.can_state; diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 1d3f7f00e3af..1ed2a5cc03f5 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -68,4 +68,8 @@ void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, void can_get_echo_skb(struct net_device *dev, unsigned int idx); void can_free_echo_skb(struct net_device *dev, unsigned int idx); +struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf); +struct sk_buff *alloc_can_err_skb(struct net_device *dev, + struct can_frame **cf); + #endif /* CAN_DEV_H */ -- cgit v1.2.3 From d19742fb1c68e6db83b76e06dea5a374c99e104f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 20 Oct 2009 01:06:22 -0700 Subject: filter: Add SKF_AD_QUEUE instruction It can help being able to filter packets on their queue_mapping. If filter performance is not good, we could add a "numqueue" field in struct packet_type, so that netif_nit_deliver() and other functions can directly ignore packets with not expected queue number. Lets experiment this simple filter extension first. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/filter.h | 3 ++- net/core/filter.c | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/filter.h b/include/linux/filter.h index 909193e25395..bb3b4352978a 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -124,7 +124,8 @@ struct sock_fprog /* Required for SO_ATTACH_FILTER. */ #define SKF_AD_NLATTR 12 #define SKF_AD_NLATTR_NEST 16 #define SKF_AD_MARK 20 -#define SKF_AD_MAX 24 +#define SKF_AD_QUEUE 24 +#define SKF_AD_MAX 28 #define SKF_NET_OFF (-0x100000) #define SKF_LL_OFF (-0x200000) diff --git a/net/core/filter.c b/net/core/filter.c index e3987e1d4839..08db7b9143a3 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -306,6 +306,9 @@ load_b: case SKF_AD_MARK: A = skb->mark; continue; + case SKF_AD_QUEUE: + A = skb->queue_mapping; + continue; case SKF_AD_NLATTR: { struct nlattr *nla; -- cgit v1.2.3 From 1c55d62e77fa16cdace417834fc7b8a421a1877f Mon Sep 17 00:00:00 2001 From: jamal Date: Thu, 15 Oct 2009 03:09:18 +0000 Subject: pkt_sched: skbedit add support for setting mark This adds support for setting the skb mark. Signed-off-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- include/linux/tc_act/tc_skbedit.h | 2 ++ include/net/tc_act/tc_skbedit.h | 2 ++ net/sched/act_skbedit.c | 17 ++++++++++++++++- 3 files changed, 20 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/tc_act/tc_skbedit.h b/include/linux/tc_act/tc_skbedit.h index a14e461a7af7..7a2e910a5f08 100644 --- a/include/linux/tc_act/tc_skbedit.h +++ b/include/linux/tc_act/tc_skbedit.h @@ -26,6 +26,7 @@ #define SKBEDIT_F_PRIORITY 0x1 #define SKBEDIT_F_QUEUE_MAPPING 0x2 +#define SKBEDIT_F_MARK 0x4 struct tc_skbedit { tc_gen; @@ -37,6 +38,7 @@ enum { TCA_SKBEDIT_PARMS, TCA_SKBEDIT_PRIORITY, TCA_SKBEDIT_QUEUE_MAPPING, + TCA_SKBEDIT_MARK, __TCA_SKBEDIT_MAX }; #define TCA_SKBEDIT_MAX (__TCA_SKBEDIT_MAX - 1) diff --git a/include/net/tc_act/tc_skbedit.h b/include/net/tc_act/tc_skbedit.h index 6abb3ed3ebf7..e103fe02f375 100644 --- a/include/net/tc_act/tc_skbedit.h +++ b/include/net/tc_act/tc_skbedit.h @@ -26,7 +26,9 @@ struct tcf_skbedit { struct tcf_common common; u32 flags; u32 priority; + u32 mark; u16 queue_mapping; + /* XXX: 16-bit pad here? */ }; #define to_skbedit(pc) \ container_of(pc, struct tcf_skbedit, common) diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c index 4ab916b8074b..e9607fe55b58 100644 --- a/net/sched/act_skbedit.c +++ b/net/sched/act_skbedit.c @@ -54,6 +54,8 @@ static int tcf_skbedit(struct sk_buff *skb, struct tc_action *a, if (d->flags & SKBEDIT_F_QUEUE_MAPPING && skb->dev->real_num_tx_queues > d->queue_mapping) skb_set_queue_mapping(skb, d->queue_mapping); + if (d->flags & SKBEDIT_F_MARK) + skb->mark = d->mark; spin_unlock(&d->tcf_lock); return d->tcf_action; @@ -63,6 +65,7 @@ static const struct nla_policy skbedit_policy[TCA_SKBEDIT_MAX + 1] = { [TCA_SKBEDIT_PARMS] = { .len = sizeof(struct tc_skbedit) }, [TCA_SKBEDIT_PRIORITY] = { .len = sizeof(u32) }, [TCA_SKBEDIT_QUEUE_MAPPING] = { .len = sizeof(u16) }, + [TCA_SKBEDIT_MARK] = { .len = sizeof(u32) }, }; static int tcf_skbedit_init(struct nlattr *nla, struct nlattr *est, @@ -72,7 +75,7 @@ static int tcf_skbedit_init(struct nlattr *nla, struct nlattr *est, struct tc_skbedit *parm; struct tcf_skbedit *d; struct tcf_common *pc; - u32 flags = 0, *priority = NULL; + u32 flags = 0, *priority = NULL, *mark = NULL; u16 *queue_mapping = NULL; int ret = 0, err; @@ -95,6 +98,12 @@ static int tcf_skbedit_init(struct nlattr *nla, struct nlattr *est, flags |= SKBEDIT_F_QUEUE_MAPPING; queue_mapping = nla_data(tb[TCA_SKBEDIT_QUEUE_MAPPING]); } + + if (tb[TCA_SKBEDIT_MARK] != NULL) { + flags |= SKBEDIT_F_MARK; + mark = nla_data(tb[TCA_SKBEDIT_MARK]); + } + if (!flags) return -EINVAL; @@ -124,6 +133,9 @@ static int tcf_skbedit_init(struct nlattr *nla, struct nlattr *est, d->priority = *priority; if (flags & SKBEDIT_F_QUEUE_MAPPING) d->queue_mapping = *queue_mapping; + if (flags & SKBEDIT_F_MARK) + d->mark = *mark; + d->tcf_action = parm->action; spin_unlock_bh(&d->tcf_lock); @@ -161,6 +173,9 @@ static inline int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a, if (d->flags & SKBEDIT_F_QUEUE_MAPPING) NLA_PUT(skb, TCA_SKBEDIT_QUEUE_MAPPING, sizeof(d->queue_mapping), &d->queue_mapping); + if (d->flags & SKBEDIT_F_MARK) + NLA_PUT(skb, TCA_SKBEDIT_MARK, sizeof(d->mark), + &d->mark); t.install = jiffies_to_clock_t(jiffies - d->tcf_tm.install); t.lastuse = jiffies_to_clock_t(jiffies - d->tcf_tm.lastuse); t.expires = jiffies_to_clock_t(d->tcf_tm.expires); -- cgit v1.2.3 From 05423b241311c9380b7280179295bac7794281b6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 26 Oct 2009 18:40:35 -0700 Subject: vlan: allow null VLAN ID to be used We currently use a 16 bit field (vlan_tci) to store VLAN ID/PRIO on a skb. Null value is used as a special value, meaning vlan tagging not enabled. This forbids use of null vlan ID. As pointed by David, some drivers use the 3 high order bits (PRIO) As VLAN ID is 12 bits, we can use the remaining bit (CFI) as a flag, and allow null VLAN ID. In case future code really wants to use VLAN_CFI_MASK, we'll have to use a bit outside of vlan_tci. #define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */ #define VLAN_PRIO_SHIFT 13 #define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */ #define VLAN_TAG_PRESENT VLAN_CFI_MASK #define VLAN_VID_MASK 0x0fff /* VLAN Identifier */ Reported-by: Gertjan Hofman Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 14 +++++++++----- net/8021q/vlan.h | 2 +- net/8021q/vlan_dev.c | 2 +- net/core/dev.c | 2 +- net/packet/af_packet.c | 5 +++-- 5 files changed, 15 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 7ff9af1d0f05..8898cbebcf34 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -63,7 +63,11 @@ static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb) return (struct vlan_ethhdr *)skb_mac_header(skb); } -#define VLAN_VID_MASK 0xfff +#define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */ +#define VLAN_PRIO_SHIFT 13 +#define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */ +#define VLAN_TAG_PRESENT VLAN_CFI_MASK +#define VLAN_VID_MASK 0x0fff /* VLAN Identifier */ /* found in socket.c */ extern void vlan_ioctl_set(int (*hook)(struct net *, void __user *)); @@ -105,8 +109,8 @@ static inline void vlan_group_set_device(struct vlan_group *vg, array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; } -#define vlan_tx_tag_present(__skb) ((__skb)->vlan_tci) -#define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci) +#define vlan_tx_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) +#define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) extern struct net_device *vlan_dev_real_dev(const struct net_device *dev); @@ -231,7 +235,7 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci) static inline struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb, u16 vlan_tci) { - skb->vlan_tci = vlan_tci; + skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci; return skb; } @@ -284,7 +288,7 @@ static inline int __vlan_hwaccel_get_tag(const struct sk_buff *skb, u16 *vlan_tci) { if (vlan_tx_tag_present(skb)) { - *vlan_tci = skb->vlan_tci; + *vlan_tci = vlan_tx_tag_get(skb); return 0; } else { *vlan_tci = 0; diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h index 82570bc2a180..4ade5edf1033 100644 --- a/net/8021q/vlan.h +++ b/net/8021q/vlan.h @@ -89,7 +89,7 @@ static inline u32 vlan_get_ingress_priority(struct net_device *dev, { struct vlan_dev_info *vip = vlan_dev_info(dev); - return vip->ingress_priority_map[(vlan_tci >> 13) & 0x7]; + return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; } #ifdef CONFIG_VLAN_8021Q_GVRP diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 4198ec5c8abc..e3701977f58d 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -393,7 +393,7 @@ int vlan_dev_set_egress_priority(const struct net_device *dev, struct vlan_dev_info *vlan = vlan_dev_info(dev); struct vlan_priority_tci_mapping *mp = NULL; struct vlan_priority_tci_mapping *np; - u32 vlan_qos = (vlan_prio << 13) & 0xE000; + u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK; /* See if a priority mapping exists.. */ mp = vlan->egress_priority_map[skb_prio & 0xF]; diff --git a/net/core/dev.c b/net/core/dev.c index e7bada1d5ed9..950c13fa60d2 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2300,7 +2300,7 @@ int netif_receive_skb(struct sk_buff *skb) if (!skb->tstamp.tv64) net_timestamp(skb); - if (skb->vlan_tci && vlan_hwaccel_do_receive(skb)) + if (vlan_tx_tag_present(skb) && vlan_hwaccel_do_receive(skb)) return NET_RX_SUCCESS; /* if we've gotten here through NAPI, check netpoll */ diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index ff752c606413..33e68f20ec61 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -79,6 +79,7 @@ #include #include #include +#include #ifdef CONFIG_INET #include @@ -766,7 +767,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, getnstimeofday(&ts); h.h2->tp_sec = ts.tv_sec; h.h2->tp_nsec = ts.tv_nsec; - h.h2->tp_vlan_tci = skb->vlan_tci; + h.h2->tp_vlan_tci = vlan_tx_tag_get(skb); hdrlen = sizeof(*h.h2); break; default: @@ -1493,7 +1494,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, aux.tp_snaplen = skb->len; aux.tp_mac = 0; aux.tp_net = skb_network_offset(skb); - aux.tp_vlan_tci = skb->vlan_tci; + aux.tp_vlan_tci = vlan_tx_tag_get(skb); put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux); } -- cgit v1.2.3 From 8b45499ccb8a93cd68b1a8766786c2f8ea991ae2 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Fri, 9 Oct 2009 20:32:10 +0200 Subject: ssb: Put host pointers into a union This slightly shrinks the structure. Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- drivers/ssb/driver_pcicore.c | 4 ++-- include/linux/ssb/ssb.h | 20 ++++++++++++-------- 2 files changed, 14 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c index 538c570df337..f1dcd7969a5c 100644 --- a/drivers/ssb/driver_pcicore.c +++ b/drivers/ssb/driver_pcicore.c @@ -551,13 +551,13 @@ int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, might_sleep_if(pdev->id.coreid != SSB_DEV_PCI); /* Enable interrupts for this device. */ - if (bus->host_pci && - ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) { + if ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE)) { u32 coremask; /* Calculate the "coremask" for the device. */ coremask = (1 << dev->core_index); + SSB_WARN_ON(bus->bustype != SSB_BUSTYPE_PCI); err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp); if (err) goto out; diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h index 3d0a9ff24f01..24f988547361 100644 --- a/include/linux/ssb/ssb.h +++ b/include/linux/ssb/ssb.h @@ -269,7 +269,8 @@ struct ssb_bus { const struct ssb_bus_ops *ops; - /* The core in the basic address register window. (PCI bus only) */ + /* The core currently mapped into the MMIO window. + * Not valid on all host-buses. So don't use outside of SSB. */ struct ssb_device *mapped_device; union { /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */ @@ -281,14 +282,17 @@ struct ssb_bus { * On PCMCIA-host busses this is used to protect the whole MMIO access. */ spinlock_t bar_lock; - /* The bus this backplane is running on. */ + /* The host-bus this backplane is running on. */ enum ssb_bustype bustype; - /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */ - struct pci_dev *host_pci; - /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */ - struct pcmcia_device *host_pcmcia; - /* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */ - struct sdio_func *host_sdio; + /* Pointers to the host-bus. Check bustype before using any of these pointers. */ + union { + /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */ + struct pci_dev *host_pci; + /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */ + struct pcmcia_device *host_pcmcia; + /* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */ + struct sdio_func *host_sdio; + }; /* See enum ssb_quirks */ unsigned int quirks; -- cgit v1.2.3 From 44a0873d52282f24b1894c58c0f157e0f626ddc9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Oct 2009 07:03:04 +0000 Subject: net: Introduce unregister_netdevice_queue() This patchs adds an unreg_list anchor to struct net_device, and introduces an unregister_netdevice_queue() function, able to queue a net_device to a list instead of immediately unregister it. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 9 ++++++++- net/core/dev.c | 20 +++++++++++++------- 2 files changed, 21 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 83800091a31a..0ded0a4768a0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -683,6 +683,7 @@ struct net_device struct list_head dev_list; struct list_head napi_list; + struct list_head unreg_list; /* Net device features */ unsigned long features; @@ -1116,7 +1117,13 @@ extern int dev_close(struct net_device *dev); extern void dev_disable_lro(struct net_device *dev); extern int dev_queue_xmit(struct sk_buff *skb); extern int register_netdevice(struct net_device *dev); -extern void unregister_netdevice(struct net_device *dev); +extern void unregister_netdevice_queue(struct net_device *dev, + struct list_head *head); +static inline void unregister_netdevice(struct net_device *dev) +{ + unregister_netdevice_queue(dev, NULL); +} + extern void free_netdev(struct net_device *dev); extern void synchronize_net(void); extern int register_netdevice_notifier(struct notifier_block *nb); diff --git a/net/core/dev.c b/net/core/dev.c index 950c13fa60d2..ff94e2b8df7f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5245,25 +5245,31 @@ void synchronize_net(void) EXPORT_SYMBOL(synchronize_net); /** - * unregister_netdevice - remove device from the kernel + * unregister_netdevice_queue - remove device from the kernel * @dev: device - * + * @head: list + * This function shuts down a device interface and removes it * from the kernel tables. + * If head not NULL, device is queued to be unregistered later. * * Callers must hold the rtnl semaphore. You may want * unregister_netdev() instead of this. */ -void unregister_netdevice(struct net_device *dev) +void unregister_netdevice_queue(struct net_device *dev, struct list_head *head) { ASSERT_RTNL(); - rollback_registered(dev); - /* Finish processing unregister after unlock */ - net_set_todo(dev); + if (head) { + list_add_tail(&dev->unreg_list, head); + } else { + rollback_registered(dev); + /* Finish processing unregister after unlock */ + net_set_todo(dev); + } } -EXPORT_SYMBOL(unregister_netdevice); +EXPORT_SYMBOL(unregister_netdevice_queue); /** * unregister_netdev - remove device from the kernel -- cgit v1.2.3 From 9b5e383c11b08784eb0087617f880077982ef769 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Oct 2009 07:04:19 +0000 Subject: net: Introduce unregister_netdevice_many() Introduce rollback_registered_many() and unregister_netdevice_many() rollback_registered_many() is able to perform necessary steps at device dismantle time, factorizing two expensive synchronize_net() calls. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + net/core/dev.c | 97 +++++++++++++++++++++++++++++++---------------- 2 files changed, 66 insertions(+), 32 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0ded0a4768a0..e7c227d7cb98 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1119,6 +1119,7 @@ extern int dev_queue_xmit(struct sk_buff *skb); extern int register_netdevice(struct net_device *dev); extern void unregister_netdevice_queue(struct net_device *dev, struct list_head *head); +extern void unregister_netdevice_many(struct list_head *head); static inline void unregister_netdevice(struct net_device *dev) { unregister_netdevice_queue(dev, NULL); diff --git a/net/core/dev.c b/net/core/dev.c index ff94e2b8df7f..04d3e3014020 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4637,59 +4637,76 @@ static void net_set_todo(struct net_device *dev) list_add_tail(&dev->todo_list, &net_todo_list); } -static void rollback_registered(struct net_device *dev) +static void rollback_registered_many(struct list_head *head) { + struct net_device *dev; + BUG_ON(dev_boot_phase); ASSERT_RTNL(); - /* Some devices call without registering for initialization unwind. */ - if (dev->reg_state == NETREG_UNINITIALIZED) { - printk(KERN_DEBUG "unregister_netdevice: device %s/%p never " - "was registered\n", dev->name, dev); + list_for_each_entry(dev, head, unreg_list) { + /* Some devices call without registering + * for initialization unwind. + */ + if (dev->reg_state == NETREG_UNINITIALIZED) { + pr_debug("unregister_netdevice: device %s/%p never " + "was registered\n", dev->name, dev); - WARN_ON(1); - return; - } + WARN_ON(1); + return; + } - BUG_ON(dev->reg_state != NETREG_REGISTERED); + BUG_ON(dev->reg_state != NETREG_REGISTERED); - /* If device is running, close it first. */ - dev_close(dev); + /* If device is running, close it first. */ + dev_close(dev); - /* And unlink it from device chain. */ - unlist_netdevice(dev); + /* And unlink it from device chain. */ + unlist_netdevice(dev); - dev->reg_state = NETREG_UNREGISTERING; + dev->reg_state = NETREG_UNREGISTERING; + } synchronize_net(); - /* Shutdown queueing discipline. */ - dev_shutdown(dev); + list_for_each_entry(dev, head, unreg_list) { + /* Shutdown queueing discipline. */ + dev_shutdown(dev); - /* Notify protocols, that we are about to destroy - this device. They should clean all the things. - */ - call_netdevice_notifiers(NETDEV_UNREGISTER, dev); + /* Notify protocols, that we are about to destroy + this device. They should clean all the things. + */ + call_netdevice_notifiers(NETDEV_UNREGISTER, dev); - /* - * Flush the unicast and multicast chains - */ - dev_unicast_flush(dev); - dev_addr_discard(dev); + /* + * Flush the unicast and multicast chains + */ + dev_unicast_flush(dev); + dev_addr_discard(dev); - if (dev->netdev_ops->ndo_uninit) - dev->netdev_ops->ndo_uninit(dev); + if (dev->netdev_ops->ndo_uninit) + dev->netdev_ops->ndo_uninit(dev); - /* Notifier chain MUST detach us from master device. */ - WARN_ON(dev->master); + /* Notifier chain MUST detach us from master device. */ + WARN_ON(dev->master); - /* Remove entries from kobject tree */ - netdev_unregister_kobject(dev); + /* Remove entries from kobject tree */ + netdev_unregister_kobject(dev); + } synchronize_net(); - dev_put(dev); + list_for_each_entry(dev, head, unreg_list) + dev_put(dev); +} + +static void rollback_registered(struct net_device *dev) +{ + LIST_HEAD(single); + + list_add(&dev->unreg_list, &single); + rollback_registered_many(&single); } static void __netdev_init_queue_locks_one(struct net_device *dev, @@ -5271,6 +5288,22 @@ void unregister_netdevice_queue(struct net_device *dev, struct list_head *head) } EXPORT_SYMBOL(unregister_netdevice_queue); +/** + * unregister_netdevice_many - unregister many devices + * @head: list of devices + * + */ +void unregister_netdevice_many(struct list_head *head) +{ + struct net_device *dev; + + if (!list_empty(head)) { + rollback_registered_many(head); + list_for_each_entry(dev, head, unreg_list) + net_set_todo(dev); + } +} + /** * unregister_netdev - remove device from the kernel * @dev: device -- cgit v1.2.3 From 63c8099d90096db56ee1c66c31f05d4fcfbc1c69 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Oct 2009 07:06:49 +0000 Subject: vlan: Optimize multiple unregistration Use unregister_netdevice_many() to speedup master device unregister. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 1 + net/8021q/vlan.c | 49 +++++++++++++++++++++++++++++++++---------------- net/core/dev.c | 1 + 3 files changed, 35 insertions(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 8898cbebcf34..71a4870c09a9 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -85,6 +85,7 @@ struct vlan_group { * the vlan is attached to. */ unsigned int nr_vlans; + int killall; struct hlist_node hlist; /* linked list */ struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS]; struct rcu_head rcu; diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 6b5c9dddaa72..511afe72af31 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -159,11 +159,12 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) if (real_dev->features & NETIF_F_HW_VLAN_FILTER) ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id); - vlan_group_set_device(grp, vlan_id, NULL); grp->nr_vlans--; - synchronize_net(); - + if (!grp->killall) { + vlan_group_set_device(grp, vlan_id, NULL); + synchronize_net(); + } unregister_netdevice_queue(dev, head); /* If the group is now empty, kill off the group. */ @@ -183,6 +184,34 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) dev_put(real_dev); } +void unregister_vlan_dev_alls(struct vlan_group *grp) +{ + LIST_HEAD(list); + int i; + struct net_device *vlandev; + struct vlan_group save; + + memcpy(&save, grp, sizeof(save)); + memset(&grp->vlan_devices_arrays, 0, sizeof(grp->vlan_devices_arrays)); + grp->killall = 1; + + synchronize_net(); + + /* Delete all VLANs for this dev. */ + for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { + vlandev = vlan_group_get_device(&save, i); + if (!vlandev) + continue; + + unregister_vlan_dev(vlandev, &list); + if (grp->nr_vlans == 0) + break; + } + unregister_netdevice_many(&list); + for (i = 0; i < VLAN_GROUP_ARRAY_SPLIT_PARTS; i++) + kfree(save.vlan_devices_arrays[i]); +} + static void vlan_transfer_operstate(const struct net_device *dev, struct net_device *vlandev) { @@ -524,19 +553,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, break; case NETDEV_UNREGISTER: - /* Delete all VLANs for this dev. */ - for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { - vlandev = vlan_group_get_device(grp, i); - if (!vlandev) - continue; - - /* unregistration of last vlan destroys group, abort - * afterwards */ - if (grp->nr_vlans == 1) - i = VLAN_GROUP_ARRAY_LEN; - - unregister_vlan_dev(vlandev, NULL); - } + unregister_vlan_dev_alls(grp); break; } diff --git a/net/core/dev.c b/net/core/dev.c index 4513dfd5718e..09551cc143a9 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5303,6 +5303,7 @@ void unregister_netdevice_many(struct list_head *head) net_set_todo(dev); } } +EXPORT_SYMBOL(unregister_netdevice_many); /** * unregister_netdev - remove device from the kernel -- cgit v1.2.3 From df5c79452f26f2a3d0883a213102515cfeb7aae9 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Wed, 28 Oct 2009 18:24:35 +0000 Subject: net: Add ndo_fcoe_get_wwn to net_device_ops Add ndo_fcoe_get_wwn so Fiber Channel over Ethernet (FCoE) can make use of the provided World Wide Port Name (WWPN) and World Wide Node Name (WWNN) from the underlying network interface driver. Signed-off-by: Yi Zou Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- include/linux/netdevice.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e7c227d7cb98..656110a46e96 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -635,6 +635,10 @@ struct net_device_ops { unsigned int sgc); int (*ndo_fcoe_ddp_done)(struct net_device *dev, u16 xid); +#define NETDEV_FCOE_WWNN 0 +#define NETDEV_FCOE_WWPN 1 + int (*ndo_fcoe_get_wwn)(struct net_device *dev, + u64 *wwn, int type); #endif }; -- cgit v1.2.3 From 1aba721eba1d84a2defce45b950272cee1e6c72a Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Wed, 28 Oct 2009 04:15:24 +0000 Subject: Add the no SACK route option feature Implement querying and acting upon the no sack bit in the features field. Signed-off-by: Gilad Ben-Yossef Sigend-off-by: Ori Finkelman Sigend-off-by: Yony Amit Signed-off-by: David S. Miller --- include/linux/rtnetlink.h | 2 +- net/ipv4/tcp_input.c | 3 ++- net/ipv4/tcp_output.c | 4 +++- 3 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index adf2068d12b5..9c802a6b04d3 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -377,7 +377,7 @@ enum #define RTAX_MAX (__RTAX_MAX - 1) #define RTAX_FEATURE_ECN 0x00000001 -#define RTAX_FEATURE_SACK 0x00000002 +#define RTAX_FEATURE_NO_SACK 0x00000002 #define RTAX_FEATURE_TIMESTAMP 0x00000004 #define RTAX_FEATURE_ALLFRAG 0x00000008 diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index c7625005486d..5fb25f977451 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3763,7 +3763,8 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx, break; case TCPOPT_SACK_PERM: if (opsize == TCPOLEN_SACK_PERM && th->syn && - !estab && sysctl_tcp_sack) { + !estab && sysctl_tcp_sack && + !dst_feature(dst, RTAX_FEATURE_NO_SACK)) { opt_rx->sack_ok = 1; tcp_sack_reset(opt_rx); } diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 2e2eb74ac4cc..b35802af3c4c 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -464,6 +464,7 @@ static unsigned tcp_syn_options(struct sock *sk, struct sk_buff *skb, struct tcp_md5sig_key **md5) { struct tcp_sock *tp = tcp_sk(sk); unsigned size = 0; + struct dst_entry *dst = __sk_dst_get(sk); #ifdef CONFIG_TCP_MD5SIG *md5 = tp->af_specific->md5_lookup(sk, sk); @@ -498,7 +499,8 @@ static unsigned tcp_syn_options(struct sock *sk, struct sk_buff *skb, opts->options |= OPTION_WSCALE; size += TCPOLEN_WSCALE_ALIGNED; } - if (likely(sysctl_tcp_sack)) { + if (likely(sysctl_tcp_sack && + !dst_feature(dst, RTAX_FEATURE_NO_SACK))) { opts->options |= OPTION_SACK_ADVERTISE; if (unlikely(!(OPTION_TS & opts->options))) size += TCPOLEN_SACKPERM_ALIGNED; -- cgit v1.2.3 From cda42ebd67ee5fdf09d7057b5a4584d36fe8a335 Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Wed, 28 Oct 2009 04:15:25 +0000 Subject: Allow disabling TCP timestamp options per route Implement querying and acting upon the no timestamp bit in the feature field. Signed-off-by: Gilad Ben-Yossef Sigend-off-by: Ori Finkelman Sigend-off-by: Yony Amit Signed-off-by: David S. Miller --- include/linux/rtnetlink.h | 2 +- net/ipv4/tcp_input.c | 3 ++- net/ipv4/tcp_output.c | 8 ++++++-- 3 files changed, 9 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 9c802a6b04d3..2ab8c758b46c 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -378,7 +378,7 @@ enum #define RTAX_FEATURE_ECN 0x00000001 #define RTAX_FEATURE_NO_SACK 0x00000002 -#define RTAX_FEATURE_TIMESTAMP 0x00000004 +#define RTAX_FEATURE_NO_TSTAMP 0x00000004 #define RTAX_FEATURE_ALLFRAG 0x00000008 struct rta_session diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 5fb25f977451..6097491aa9fc 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3755,7 +3755,8 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx, case TCPOPT_TIMESTAMP: if ((opsize == TCPOLEN_TIMESTAMP) && ((estab && opt_rx->tstamp_ok) || - (!estab && sysctl_tcp_timestamps))) { + (!estab && sysctl_tcp_timestamps && + !dst_feature(dst, RTAX_FEATURE_NO_TSTAMP)))) { opt_rx->saw_tstamp = 1; opt_rx->rcv_tsval = get_unaligned_be32(ptr); opt_rx->rcv_tsecr = get_unaligned_be32(ptr + 4); diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index b35802af3c4c..8819eba8ebb8 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -488,7 +488,9 @@ static unsigned tcp_syn_options(struct sock *sk, struct sk_buff *skb, opts->mss = tcp_advertise_mss(sk); size += TCPOLEN_MSS_ALIGNED; - if (likely(sysctl_tcp_timestamps && *md5 == NULL)) { + if (likely(sysctl_tcp_timestamps && + !dst_feature(dst, RTAX_FEATURE_NO_TSTAMP) && + *md5 == NULL)) { opts->options |= OPTION_TS; opts->tsval = TCP_SKB_CB(skb)->when; opts->tsecr = tp->rx_opt.ts_recent; @@ -2317,7 +2319,9 @@ static void tcp_connect_init(struct sock *sk) * See tcp_input.c:tcp_rcv_state_process case TCP_SYN_SENT. */ tp->tcp_header_len = sizeof(struct tcphdr) + - (sysctl_tcp_timestamps ? TCPOLEN_TSTAMP_ALIGNED : 0); + (sysctl_tcp_timestamps && + (!dst_feature(dst, RTAX_FEATURE_NO_TSTAMP) ? + TCPOLEN_TSTAMP_ALIGNED : 0)); #ifdef CONFIG_TCP_MD5SIG if (tp->af_specific->md5_lookup(sk, sk) != NULL) -- cgit v1.2.3 From 345cda2fd695534be5a4494f1b59da9daed33663 Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Wed, 28 Oct 2009 04:15:26 +0000 Subject: Allow to turn off TCP window scale opt per route Add and use no window scale bit in the features field. Note that this is not the same as setting a window scale of 0 as would happen with window limit on route. Signed-off-by: Gilad Ben-Yossef Sigend-off-by: Ori Finkelman Sigend-off-by: Yony Amit Signed-off-by: David S. Miller --- include/linux/rtnetlink.h | 1 + net/ipv4/tcp_input.c | 3 ++- net/ipv4/tcp_output.c | 6 ++++-- 3 files changed, 7 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 2ab8c758b46c..6784b342cbbf 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -380,6 +380,7 @@ enum #define RTAX_FEATURE_NO_SACK 0x00000002 #define RTAX_FEATURE_NO_TSTAMP 0x00000004 #define RTAX_FEATURE_ALLFRAG 0x00000008 +#define RTAX_FEATURE_NO_WSCALE 0x00000010 struct rta_session { diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 6097491aa9fc..393c56921dcb 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3739,7 +3739,8 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx, break; case TCPOPT_WINDOW: if (opsize == TCPOLEN_WINDOW && th->syn && - !estab && sysctl_tcp_window_scaling) { + !estab && sysctl_tcp_window_scaling && + !dst_feature(dst, RTAX_FEATURE_NO_WSCALE)) { __u8 snd_wscale = *(__u8 *)ptr; opt_rx->wscale_ok = 1; if (snd_wscale > 14) { diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 8819eba8ebb8..616c686ca253 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -496,7 +496,8 @@ static unsigned tcp_syn_options(struct sock *sk, struct sk_buff *skb, opts->tsecr = tp->rx_opt.ts_recent; size += TCPOLEN_TSTAMP_ALIGNED; } - if (likely(sysctl_tcp_window_scaling)) { + if (likely(sysctl_tcp_window_scaling && + !dst_feature(dst, RTAX_FEATURE_NO_WSCALE))) { opts->ws = tp->rx_opt.rcv_wscale; opts->options |= OPTION_WSCALE; size += TCPOLEN_WSCALE_ALIGNED; @@ -2347,7 +2348,8 @@ static void tcp_connect_init(struct sock *sk) tp->advmss - (tp->rx_opt.ts_recent_stamp ? tp->tcp_header_len - sizeof(struct tcphdr) : 0), &tp->rcv_wnd, &tp->window_clamp, - sysctl_tcp_window_scaling, + (sysctl_tcp_window_scaling && + !dst_feature(dst, RTAX_FEATURE_NO_WSCALE)), &rcv_wscale); tp->rx_opt.rcv_wscale = rcv_wscale; -- cgit v1.2.3 From dc343475ed062e13fc260acccaab91d7d80fd5b2 Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Wed, 28 Oct 2009 04:15:27 +0000 Subject: Allow disabling of DSACK TCP option per route Add and use no DSCAK bit in the features field. Signed-off-by: Gilad Ben-Yossef Sigend-off-by: Ori Finkelman Sigend-off-by: Yony Amit Signed-off-by: David S. Miller --- include/linux/rtnetlink.h | 1 + net/ipv4/tcp_input.c | 8 ++++++-- 2 files changed, 7 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 6784b342cbbf..e78b60cd65a4 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -381,6 +381,7 @@ enum #define RTAX_FEATURE_NO_TSTAMP 0x00000004 #define RTAX_FEATURE_ALLFRAG 0x00000008 #define RTAX_FEATURE_NO_WSCALE 0x00000010 +#define RTAX_FEATURE_NO_DSACK 0x00000020 struct rta_session { diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 393c56921dcb..ba0eab65fe80 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -4080,8 +4080,10 @@ static inline int tcp_sack_extend(struct tcp_sack_block *sp, u32 seq, static void tcp_dsack_set(struct sock *sk, u32 seq, u32 end_seq) { struct tcp_sock *tp = tcp_sk(sk); + struct dst_entry *dst = __sk_dst_get(sk); - if (tcp_is_sack(tp) && sysctl_tcp_dsack) { + if (tcp_is_sack(tp) && sysctl_tcp_dsack && + !dst_feature(dst, RTAX_FEATURE_NO_DSACK)) { int mib_idx; if (before(seq, tp->rcv_nxt)) @@ -4110,13 +4112,15 @@ static void tcp_dsack_extend(struct sock *sk, u32 seq, u32 end_seq) static void tcp_send_dupack(struct sock *sk, struct sk_buff *skb) { struct tcp_sock *tp = tcp_sk(sk); + struct dst_entry *dst = __sk_dst_get(sk); if (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq && before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) { NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKLOST); tcp_enter_quickack_mode(sk); - if (tcp_is_sack(tp) && sysctl_tcp_dsack) { + if (tcp_is_sack(tp) && sysctl_tcp_dsack && + !dst_feature(dst, RTAX_FEATURE_NO_DSACK)) { u32 end_seq = TCP_SKB_CB(skb)->end_seq; if (after(TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt)) -- cgit v1.2.3 From fb699dfd426a189fe33b91586c15176a75c8aed0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 19 Oct 2009 19:18:49 +0000 Subject: net: Introduce dev_get_by_index_rcu() Some workloads hit dev_base_lock rwlock pretty hard. We can use RCU lookups to avoid touching this rwlock. netdevices are already freed after a RCU grace period, so this patch adds no penalty at device dismantle time. dev_ifname() converted to dev_get_by_index_rcu() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + net/core/dev.c | 48 +++++++++++++++++++++++++++++++++++++---------- 2 files changed, 39 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 656110a46e96..ffc3106cc037 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1139,6 +1139,7 @@ extern void netdev_resync_ops(struct net_device *dev); extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev); extern struct net_device *dev_get_by_index(struct net *net, int ifindex); extern struct net_device *__dev_get_by_index(struct net *net, int ifindex); +extern struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex); extern int dev_restart(struct net_device *dev); #ifdef CONFIG_NETPOLL_TRAP extern int netpoll_trap(void); diff --git a/net/core/dev.c b/net/core/dev.c index 09551cc143a9..68a1bb68b5a8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -214,12 +214,15 @@ static int list_netdevice(struct net_device *dev) write_lock_bh(&dev_base_lock); list_add_tail(&dev->dev_list, &net->dev_base_head); hlist_add_head(&dev->name_hlist, dev_name_hash(net, dev->name)); - hlist_add_head(&dev->index_hlist, dev_index_hash(net, dev->ifindex)); + hlist_add_head_rcu(&dev->index_hlist, + dev_index_hash(net, dev->ifindex)); write_unlock_bh(&dev_base_lock); return 0; } -/* Device list removal */ +/* Device list removal + * caller must respect a RCU grace period before freeing/reusing dev + */ static void unlist_netdevice(struct net_device *dev) { ASSERT_RTNL(); @@ -228,7 +231,7 @@ static void unlist_netdevice(struct net_device *dev) write_lock_bh(&dev_base_lock); list_del(&dev->dev_list); hlist_del(&dev->name_hlist); - hlist_del(&dev->index_hlist); + hlist_del_rcu(&dev->index_hlist); write_unlock_bh(&dev_base_lock); } @@ -646,6 +649,31 @@ struct net_device *__dev_get_by_index(struct net *net, int ifindex) } EXPORT_SYMBOL(__dev_get_by_index); +/** + * dev_get_by_index_rcu - find a device by its ifindex + * @net: the applicable net namespace + * @ifindex: index of device + * + * Search for an interface by index. Returns %NULL if the device + * is not found or a pointer to the device. The device has not + * had its reference counter increased so the caller must be careful + * about locking. The caller must hold RCU lock. + */ + +struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex) +{ + struct hlist_node *p; + struct net_device *dev; + struct hlist_head *head = dev_index_hash(net, ifindex); + + hlist_for_each_entry_rcu(dev, p, head, index_hlist) + if (dev->ifindex == ifindex) + return dev; + + return NULL; +} +EXPORT_SYMBOL(dev_get_by_index_rcu); + /** * dev_get_by_index - find a device by its ifindex @@ -662,11 +690,11 @@ struct net_device *dev_get_by_index(struct net *net, int ifindex) { struct net_device *dev; - read_lock(&dev_base_lock); - dev = __dev_get_by_index(net, ifindex); + rcu_read_lock(); + dev = dev_get_by_index_rcu(net, ifindex); if (dev) dev_hold(dev); - read_unlock(&dev_base_lock); + rcu_read_unlock(); return dev; } EXPORT_SYMBOL(dev_get_by_index); @@ -2939,15 +2967,15 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg) if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) return -EFAULT; - read_lock(&dev_base_lock); - dev = __dev_get_by_index(net, ifr.ifr_ifindex); + rcu_read_lock(); + dev = dev_get_by_index_rcu(net, ifr.ifr_ifindex); if (!dev) { - read_unlock(&dev_base_lock); + rcu_read_unlock(); return -ENODEV; } strcpy(ifr.ifr_name, dev->name); - read_unlock(&dev_base_lock); + rcu_read_unlock(); if (copy_to_user(arg, &ifr, sizeof(struct ifreq))) return -EFAULT; -- cgit v1.2.3 From 38bfd8f5bec496e8e0db8849e01c99a33479418a Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Thu, 29 Oct 2009 02:59:18 -0700 Subject: net,socket: introduce DECLARE_SOCKADDR helper to catch overflow at build time proto_ops->getname implies copying protocol specific data into storage unit (particulary to __kernel_sockaddr_storage). So when we implement new protocol support we should keep such a detail in mind (which is easy to forget about). Lets introduce DECLARE_SOCKADDR helper which check if storage unit is not overfowed at build time. Eventually inet_getname is switched to use DECLARE_SOCKADDR (to show example of usage). Signed-off-by: Cyrill Gorcunov Signed-off-by: David S. Miller --- include/linux/net.h | 3 +++ include/linux/socket.h | 3 +++ net/ipv4/af_inet.c | 2 +- 3 files changed, 7 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/net.h b/include/linux/net.h index b42bb60fe92f..4da9d571b053 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -199,6 +199,9 @@ struct proto_ops { struct pipe_inode_info *pipe, size_t len, unsigned int flags); }; +#define DECLARE_SOCKADDR(type, dst, src) \ + type dst = ({ __sockaddr_check_size(sizeof(*dst)); (type) src; }) + struct net_proto_family { int family; int (*create)(struct net *net, struct socket *sock, int protocol); diff --git a/include/linux/socket.h b/include/linux/socket.h index 59966f12990c..7b3aae2052a6 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -24,6 +24,9 @@ struct __kernel_sockaddr_storage { #include /* pid_t */ #include /* __user */ +#define __sockaddr_check_size(size) \ + BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage))) + #ifdef __KERNEL__ # ifdef CONFIG_PROC_FS struct seq_file; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 04a14b1600ac..538e84d0bcba 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -685,7 +685,7 @@ int inet_getname(struct socket *sock, struct sockaddr *uaddr, { struct sock *sk = sock->sk; struct inet_sock *inet = inet_sk(sk); - struct sockaddr_in *sin = (struct sockaddr_in *)uaddr; + DECLARE_SOCKADDR(struct sockaddr_in *, sin, uaddr); sin->sin_family = AF_INET; if (peer) { -- cgit v1.2.3 From 5b252f0c2f98df21fadf0f6cf189b87a0b938228 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 29 Oct 2009 07:17:09 +0000 Subject: gro: Name the GRO result enumeration type This clarifies which return and parameter types are GRO result codes and not RX result codes. Signed-off-by: Ben Hutchings Acked-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/netdevice.h | 10 ++++++---- net/8021q/vlan_core.c | 5 +++-- net/core/dev.c | 19 ++++++++++++++----- 3 files changed, 23 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ffc3106cc037..6e777efe149e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -348,13 +348,14 @@ enum NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ }; -enum { +enum gro_result { GRO_MERGED, GRO_MERGED_FREE, GRO_HELD, GRO_NORMAL, GRO_DROP, }; +typedef enum gro_result gro_result_t; extern void __napi_schedule(struct napi_struct *n); @@ -1480,16 +1481,17 @@ extern int netif_rx_ni(struct sk_buff *skb); #define HAVE_NETIF_RECEIVE_SKB 1 extern int netif_receive_skb(struct sk_buff *skb); extern void napi_gro_flush(struct napi_struct *napi); -extern int dev_gro_receive(struct napi_struct *napi, +extern gro_result_t dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb); -extern int napi_skb_finish(int ret, struct sk_buff *skb); +extern int napi_skb_finish(gro_result_t ret, struct sk_buff *skb); extern int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb); extern void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb); extern struct sk_buff * napi_get_frags(struct napi_struct *napi); extern int napi_frags_finish(struct napi_struct *napi, - struct sk_buff *skb, int ret); + struct sk_buff *skb, + gro_result_t ret); extern struct sk_buff * napi_frags_skb(struct napi_struct *napi); extern int napi_gro_frags(struct napi_struct *napi); diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 7f7de1a04de6..47a80d65c3b7 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -74,8 +74,9 @@ u16 vlan_dev_vlan_id(const struct net_device *dev) } EXPORT_SYMBOL(vlan_dev_vlan_id); -static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp, - unsigned int vlan_tci, struct sk_buff *skb) +static gro_result_t +vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci, struct sk_buff *skb) { struct sk_buff *p; diff --git a/net/core/dev.c b/net/core/dev.c index 68a1bb68b5a8..1dc13744684c 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2476,7 +2476,7 @@ void napi_gro_flush(struct napi_struct *napi) } EXPORT_SYMBOL(napi_gro_flush); -int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) +enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { struct sk_buff **pp = NULL; struct packet_type *ptype; @@ -2484,7 +2484,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK]; int same_flow; int mac_len; - int ret; + enum gro_result ret; if (!(skb->dev->features & NETIF_F_GRO)) goto normal; @@ -2568,7 +2568,8 @@ normal: } EXPORT_SYMBOL(dev_gro_receive); -static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) +static gro_result_t +__napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { struct sk_buff *p; @@ -2585,7 +2586,7 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) return dev_gro_receive(napi, skb); } -int napi_skb_finish(int ret, struct sk_buff *skb) +int napi_skb_finish(gro_result_t ret, struct sk_buff *skb) { int err = NET_RX_SUCCESS; @@ -2600,6 +2601,10 @@ int napi_skb_finish(int ret, struct sk_buff *skb) case GRO_MERGED_FREE: kfree_skb(skb); break; + + case GRO_HELD: + case GRO_MERGED: + break; } return err; @@ -2652,7 +2657,8 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi) } EXPORT_SYMBOL(napi_get_frags); -int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret) +int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, + gro_result_t ret) { int err = NET_RX_SUCCESS; @@ -2674,6 +2680,9 @@ int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret) case GRO_MERGED_FREE: napi_reuse_skb(napi, skb); break; + + case GRO_MERGED: + break; } return err; -- cgit v1.2.3 From c7c4b3b6e976b95facbb723951bdcd554a3530a4 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 29 Oct 2009 21:36:53 -0700 Subject: gro: Change all receive functions to return GRO result codes This will allow drivers to adjust their receive path dynamically based on whether GRO is being applied successfully. Currently all in-tree callers ignore the return values of these functions and do not need to be changed. Signed-off-by: Ben Hutchings Acked-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 25 ++++++++++++++----------- include/linux/netdevice.h | 8 ++++---- net/8021q/vlan_core.c | 16 +++++++++------- net/core/dev.c | 38 +++++++++++++++----------------------- 4 files changed, 42 insertions(+), 45 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 71a4870c09a9..153f6b9e722c 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -120,10 +120,12 @@ extern u16 vlan_dev_vlan_id(const struct net_device *dev); extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, u16 vlan_tci, int polling); extern int vlan_hwaccel_do_receive(struct sk_buff *skb); -extern int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, - unsigned int vlan_tci, struct sk_buff *skb); -extern int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp, - unsigned int vlan_tci); +extern gro_result_t +vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci, struct sk_buff *skb); +extern gro_result_t +vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci); #else static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev) @@ -150,17 +152,18 @@ static inline int vlan_hwaccel_do_receive(struct sk_buff *skb) return 0; } -static inline int vlan_gro_receive(struct napi_struct *napi, - struct vlan_group *grp, - unsigned int vlan_tci, struct sk_buff *skb) +static inline gro_result_t +vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci, struct sk_buff *skb) { - return NET_RX_DROP; + return GRO_DROP; } -static inline int vlan_gro_frags(struct napi_struct *napi, - struct vlan_group *grp, unsigned int vlan_tci) +static inline gro_result_t +vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci) { - return NET_RX_DROP; + return GRO_DROP; } #endif diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 6e777efe149e..193b637889f9 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1483,17 +1483,17 @@ extern int netif_receive_skb(struct sk_buff *skb); extern void napi_gro_flush(struct napi_struct *napi); extern gro_result_t dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb); -extern int napi_skb_finish(gro_result_t ret, struct sk_buff *skb); -extern int napi_gro_receive(struct napi_struct *napi, +extern gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb); +extern gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb); extern void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb); extern struct sk_buff * napi_get_frags(struct napi_struct *napi); -extern int napi_frags_finish(struct napi_struct *napi, +extern gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, gro_result_t ret); extern struct sk_buff * napi_frags_skb(struct napi_struct *napi); -extern int napi_gro_frags(struct napi_struct *napi); +extern gro_result_t napi_gro_frags(struct napi_struct *napi); static inline void napi_free_frags(struct napi_struct *napi) { diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 47a80d65c3b7..8d5ca2ac4f8d 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -102,11 +102,12 @@ drop: return GRO_DROP; } -int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, - unsigned int vlan_tci, struct sk_buff *skb) +gro_result_t vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci, struct sk_buff *skb) { if (netpoll_rx_on(skb)) - return vlan_hwaccel_receive_skb(skb, grp, vlan_tci); + return vlan_hwaccel_receive_skb(skb, grp, vlan_tci) + ? GRO_DROP : GRO_NORMAL; skb_gro_reset_offset(skb); @@ -114,17 +115,18 @@ int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp, } EXPORT_SYMBOL(vlan_gro_receive); -int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp, - unsigned int vlan_tci) +gro_result_t vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp, + unsigned int vlan_tci) { struct sk_buff *skb = napi_frags_skb(napi); if (!skb) - return NET_RX_DROP; + return GRO_DROP; if (netpoll_rx_on(skb)) { skb->protocol = eth_type_trans(skb, skb->dev); - return vlan_hwaccel_receive_skb(skb, grp, vlan_tci); + return vlan_hwaccel_receive_skb(skb, grp, vlan_tci) + ? GRO_DROP : GRO_NORMAL; } return napi_frags_finish(napi, skb, diff --git a/net/core/dev.c b/net/core/dev.c index 1dc13744684c..631cc40da197 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2586,18 +2586,15 @@ __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) return dev_gro_receive(napi, skb); } -int napi_skb_finish(gro_result_t ret, struct sk_buff *skb) +gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb) { - int err = NET_RX_SUCCESS; - switch (ret) { case GRO_NORMAL: - return netif_receive_skb(skb); + if (netif_receive_skb(skb)) + ret = GRO_DROP; + break; case GRO_DROP: - err = NET_RX_DROP; - /* fall through */ - case GRO_MERGED_FREE: kfree_skb(skb); break; @@ -2607,7 +2604,7 @@ int napi_skb_finish(gro_result_t ret, struct sk_buff *skb) break; } - return err; + return ret; } EXPORT_SYMBOL(napi_skb_finish); @@ -2627,7 +2624,7 @@ void skb_gro_reset_offset(struct sk_buff *skb) } EXPORT_SYMBOL(skb_gro_reset_offset); -int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) +gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { skb_gro_reset_offset(skb); @@ -2657,26 +2654,21 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi) } EXPORT_SYMBOL(napi_get_frags); -int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, - gro_result_t ret) +gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, + gro_result_t ret) { - int err = NET_RX_SUCCESS; - switch (ret) { case GRO_NORMAL: case GRO_HELD: skb->protocol = eth_type_trans(skb, napi->dev); - if (ret == GRO_NORMAL) - return netif_receive_skb(skb); - - skb_gro_pull(skb, -ETH_HLEN); + if (ret == GRO_HELD) + skb_gro_pull(skb, -ETH_HLEN); + else if (netif_receive_skb(skb)) + ret = GRO_DROP; break; case GRO_DROP: - err = NET_RX_DROP; - /* fall through */ - case GRO_MERGED_FREE: napi_reuse_skb(napi, skb); break; @@ -2685,7 +2677,7 @@ int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, break; } - return err; + return ret; } EXPORT_SYMBOL(napi_frags_finish); @@ -2726,12 +2718,12 @@ out: } EXPORT_SYMBOL(napi_frags_skb); -int napi_gro_frags(struct napi_struct *napi) +gro_result_t napi_gro_frags(struct napi_struct *napi) { struct sk_buff *skb = napi_frags_skb(napi); if (!skb) - return NET_RX_DROP; + return GRO_DROP; return napi_frags_finish(napi, skb, __napi_gro_receive(napi, skb)); } -- cgit v1.2.3 From 0c509a6c9393b27a8c5a01acd4a72616206cfc24 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 29 Oct 2009 14:18:21 +0000 Subject: net: Allow devices to specify a device specific sysfs group. This isn't beautifully abstracted, but it is simple, simplifies uses and so far is only needed for the bonding driver. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller --- include/linux/netdevice.h | 4 ++-- net/core/net-sysfs.c | 5 ++++- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 193b637889f9..e5ece8dceaad 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -900,8 +900,8 @@ struct net_device /* class/net/name entry */ struct device dev; - /* space for optional statistics and wireless sysfs groups */ - const struct attribute_group *sysfs_groups[3]; + /* space for optional device, statistics, and wireless sysfs groups */ + const struct attribute_group *sysfs_groups[4]; /* rtnetlink link ops */ const struct rtnl_link_ops *rtnl_link_ops; diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 89de182353b0..157645c0da73 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -544,8 +544,11 @@ int netdev_register_kobject(struct net_device *net) dev_set_name(dev, "%s", net->name); #ifdef CONFIG_SYSFS - *groups++ = &netstat_group; + /* Allow for a device specific group */ + if (*groups) + groups++; + *groups++ = &netstat_group; #ifdef CONFIG_WIRELESS_EXT_SYSFS if (net->ieee80211_ptr) *groups++ = &wireless_group; -- cgit v1.2.3 From 22403def134e2c1017cb04ae9129a38e841b2d8c Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 30 Oct 2009 12:55:03 +0100 Subject: mac80211: also drop qos-nullfunc frames silently We drop nullfunc frames, but not qos-nullfunc frames, even though those could be used for PS state control as well. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 12 +++++++++++- net/mac80211/rx.c | 15 ++++++++++----- 2 files changed, 21 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 52e15e079c61..0aa831467493 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -472,7 +472,7 @@ static inline int ieee80211_is_cfendack(__le16 fc) } /** - * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC + * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame * @fc: frame control bytes in little-endian byteorder */ static inline int ieee80211_is_nullfunc(__le16 fc) @@ -481,6 +481,16 @@ static inline int ieee80211_is_nullfunc(__le16 fc) cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); } +/** + * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_qos_nullfunc(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); +} + struct ieee80211s_hdr { u8 flags; u8 ttl; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index f862399f7ce1..51cb8bc3af81 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -886,12 +886,17 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) } } - /* Drop data::nullfunc frames silently, since they are used only to - * control station power saving mode. */ - if (ieee80211_is_nullfunc(hdr->frame_control)) { + /* + * Drop (qos-)data::nullfunc frames silently, since they + * are used only to control station power saving mode. + */ + if (ieee80211_is_nullfunc(hdr->frame_control) || + ieee80211_is_qos_nullfunc(hdr->frame_control)) { I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc); - /* Update counter and free packet here to avoid counting this - * as a dropped packed. */ + /* + * Update counter and free packet here to avoid + * counting this as a dropped packed. + */ sta->rx_packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; -- cgit v1.2.3 From 244546f0d3101c5441f5b14cfe8a79d62679eaea Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Fri, 30 Oct 2009 08:54:53 +0000 Subject: RDS: Add GET_MR_FOR_DEST sockopt RDS currently supports a GET_MR sockopt to establish a memory region (MR) for a chunk of memory. However, the fastreg method ties a MR to a particular destination. The GET_MR_FOR_DEST sockopt allows the remote machine to be specified, and thus support for fastreg (aka FRWRs). Note that this patch does *not* do all of this - it simply implements the new sockopt in terms of the old one, so applications can begin to use the new sockopt in preparation for cutover to FRWRs. Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- include/linux/rds.h | 8 ++++++++ net/rds/af_rds.c | 3 +++ net/rds/rdma.c | 24 ++++++++++++++++++++++++ net/rds/rdma.h | 1 + 4 files changed, 36 insertions(+) (limited to 'include/linux') diff --git a/include/linux/rds.h b/include/linux/rds.h index 89d46e1afbb1..cab4994c2f63 100644 --- a/include/linux/rds.h +++ b/include/linux/rds.h @@ -56,6 +56,7 @@ /* deprecated: RDS_BARRIER 4 */ #define RDS_RECVERR 5 #define RDS_CONG_MONITOR 6 +#define RDS_GET_MR_FOR_DEST 7 /* * Control message types for SOL_RDS. @@ -224,6 +225,13 @@ struct rds_get_mr_args { uint64_t flags; }; +struct rds_get_mr_for_dest_args { + struct sockaddr_storage dest_addr; + struct rds_iovec vec; + u_int64_t cookie_addr; + uint64_t flags; +}; + struct rds_free_mr_args { rds_rdma_cookie_t cookie; u_int64_t flags; diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index a202e5b36079..2b978dc6e75d 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -265,6 +265,9 @@ static int rds_setsockopt(struct socket *sock, int level, int optname, case RDS_GET_MR: ret = rds_get_mr(rs, optval, optlen); break; + case RDS_GET_MR_FOR_DEST: + ret = rds_get_mr_for_dest(rs, optval, optlen); + break; case RDS_FREE_MR: ret = rds_free_mr(rs, optval, optlen); break; diff --git a/net/rds/rdma.c b/net/rds/rdma.c index 8dc83d2caa58..971b5a668458 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -317,6 +317,30 @@ int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen) return __rds_rdma_map(rs, &args, NULL, NULL); } +int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) +{ + struct rds_get_mr_for_dest_args args; + struct rds_get_mr_args new_args; + + if (optlen != sizeof(struct rds_get_mr_for_dest_args)) + return -EINVAL; + + if (copy_from_user(&args, (struct rds_get_mr_for_dest_args __user *)optval, + sizeof(struct rds_get_mr_for_dest_args))) + return -EFAULT; + + /* + * Initially, just behave like get_mr(). + * TODO: Implement get_mr as wrapper around this + * and deprecate it. + */ + new_args.vec = args.vec; + new_args.cookie_addr = args.cookie_addr; + new_args.flags = args.flags; + + return __rds_rdma_map(rs, &new_args, NULL, NULL); +} + /* * Free the MR indicated by the given R_Key */ diff --git a/net/rds/rdma.h b/net/rds/rdma.h index 425512098b0b..909c39835a5d 100644 --- a/net/rds/rdma.h +++ b/net/rds/rdma.h @@ -61,6 +61,7 @@ static inline u32 rds_rdma_cookie_offset(rds_rdma_cookie_t cookie) } int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen); +int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen); int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen); void rds_rdma_drop_keys(struct rds_sock *rs); int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, -- cgit v1.2.3 From 72c9528bab94cc052d00ce241b8e85f5d71e45f0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 30 Oct 2009 07:11:27 +0000 Subject: net: Introduce dev_get_by_name_rcu() Some workloads hit dev_base_lock rwlock pretty hard. We can use RCU lookups to avoid touching this rwlock (and avoid touching netdevice refcount) netdevices are already freed after a RCU grace period, so this patch adds no penalty at device dismantle time. However, it adds a synchronize_rcu() call in dev_change_name() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + net/core/dev.c | 49 ++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 41 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e5ece8dceaad..bcf1083857fc 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1115,6 +1115,7 @@ extern void __dev_remove_pack(struct packet_type *pt); extern struct net_device *dev_get_by_flags(struct net *net, unsigned short flags, unsigned short mask); extern struct net_device *dev_get_by_name(struct net *net, const char *name); +extern struct net_device *dev_get_by_name_rcu(struct net *net, const char *name); extern struct net_device *__dev_get_by_name(struct net *net, const char *name); extern int dev_alloc_name(struct net_device *dev, const char *name); extern int dev_open(struct net_device *dev); diff --git a/net/core/dev.c b/net/core/dev.c index 94f42a15fff1..f54d8b8a434b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -213,7 +213,7 @@ static int list_netdevice(struct net_device *dev) write_lock_bh(&dev_base_lock); list_add_tail(&dev->dev_list, &net->dev_base_head); - hlist_add_head(&dev->name_hlist, dev_name_hash(net, dev->name)); + hlist_add_head_rcu(&dev->name_hlist, dev_name_hash(net, dev->name)); hlist_add_head_rcu(&dev->index_hlist, dev_index_hash(net, dev->ifindex)); write_unlock_bh(&dev_base_lock); @@ -230,7 +230,7 @@ static void unlist_netdevice(struct net_device *dev) /* Unlink dev from the device chain */ write_lock_bh(&dev_base_lock); list_del(&dev->dev_list); - hlist_del(&dev->name_hlist); + hlist_del_rcu(&dev->name_hlist); hlist_del_rcu(&dev->index_hlist); write_unlock_bh(&dev_base_lock); } @@ -598,6 +598,32 @@ struct net_device *__dev_get_by_name(struct net *net, const char *name) } EXPORT_SYMBOL(__dev_get_by_name); +/** + * dev_get_by_name_rcu - find a device by its name + * @net: the applicable net namespace + * @name: name to find + * + * Find an interface by name. + * If the name is found a pointer to the device is returned. + * If the name is not found then %NULL is returned. + * The reference counters are not incremented so the caller must be + * careful with locks. The caller must hold RCU lock. + */ + +struct net_device *dev_get_by_name_rcu(struct net *net, const char *name) +{ + struct hlist_node *p; + struct net_device *dev; + struct hlist_head *head = dev_name_hash(net, name); + + hlist_for_each_entry_rcu(dev, p, head, name_hlist) + if (!strncmp(dev->name, name, IFNAMSIZ)) + return dev; + + return NULL; +} +EXPORT_SYMBOL(dev_get_by_name_rcu); + /** * dev_get_by_name - find a device by its name * @net: the applicable net namespace @@ -614,11 +640,11 @@ struct net_device *dev_get_by_name(struct net *net, const char *name) { struct net_device *dev; - read_lock(&dev_base_lock); - dev = __dev_get_by_name(net, name); + rcu_read_lock(); + dev = dev_get_by_name_rcu(net, name); if (dev) dev_hold(dev); - read_unlock(&dev_base_lock); + rcu_read_unlock(); return dev; } EXPORT_SYMBOL(dev_get_by_name); @@ -960,7 +986,12 @@ rollback: write_lock_bh(&dev_base_lock); hlist_del(&dev->name_hlist); - hlist_add_head(&dev->name_hlist, dev_name_hash(net, dev->name)); + write_unlock_bh(&dev_base_lock); + + synchronize_rcu(); + + write_lock_bh(&dev_base_lock); + hlist_add_head_rcu(&dev->name_hlist, dev_name_hash(net, dev->name)); write_unlock_bh(&dev_base_lock); ret = call_netdevice_notifiers(NETDEV_CHANGENAME, dev); @@ -1062,9 +1093,9 @@ void dev_load(struct net *net, const char *name) { struct net_device *dev; - read_lock(&dev_base_lock); - dev = __dev_get_by_name(net, name); - read_unlock(&dev_base_lock); + rcu_read_lock(); + dev = dev_get_by_name_rcu(net, name); + rcu_read_unlock(); if (!dev && capable(CAP_NET_ADMIN)) request_module("%s", name); -- cgit v1.2.3 From 8649f13d2d810406da444a6101906041b796fbde Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 2 Nov 2009 14:30:00 +0000 Subject: broadcom: Consolidate dev_flags definitions This patch moves all the dev_flags enumerations outside the broadcom.c file to include/linux/brcmphy.h. The existing flags were not used yet and have been re-enumerated to avoid conflicts. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/phy/broadcom.c | 11 +---------- include/linux/brcmphy.h | 17 +++++++++++------ 2 files changed, 12 insertions(+), 16 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 1a2b2f2a273a..ace0ccc87a00 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -16,6 +16,7 @@ #include #include +#include #define PHY_ID_BCM50610 0x0143bd60 #define PHY_ID_BCM50610M 0x0143bd70 @@ -138,16 +139,6 @@ #define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */ #define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */ -/* - * Device flags for PHYs that can be configured for different operating - * modes. - */ -#define PHY_BCM_FLAGS_VALID 0x80000000 -#define PHY_BCM_FLAGS_INTF_XAUI 0x00000020 -#define PHY_BCM_FLAGS_INTF_SGMII 0x00000010 -#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002 -#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001 - /*****************************************************************************/ /* Fast Ethernet Transceiver definitions. */ diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index 9b64b6d67873..daa1480fcf49 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -1,6 +1,11 @@ -#define PHY_BRCM_WIRESPEED_ENABLE 0x00000001 -#define PHY_BRCM_AUTO_PWRDWN_ENABLE 0x00000002 -#define PHY_BRCM_APD_CLK125_ENABLE 0x00000004 -#define PHY_BRCM_STD_IBND_DISABLE 0x00000008 -#define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00000010 -#define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00000020 +#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001 +#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002 +#define PHY_BCM_FLAGS_INTF_SGMII 0x00000010 +#define PHY_BCM_FLAGS_INTF_XAUI 0x00000020 +#define PHY_BRCM_WIRESPEED_ENABLE 0x00000100 +#define PHY_BRCM_AUTO_PWRDWN_ENABLE 0x00000200 +#define PHY_BRCM_APD_CLK125_ENABLE 0x00000400 +#define PHY_BRCM_STD_IBND_DISABLE 0x00000800 +#define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000 +#define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 +#define PHY_BCM_FLAGS_VALID 0x80000000 -- cgit v1.2.3 From 63a14ce449dd6d647de2725809159eb072b2c44f Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 2 Nov 2009 14:30:40 +0000 Subject: tg3 / broadcom: Add PHY_BRCM_CLEAR_RGMII_MODE flag Broadcom 50610M parts changed the default definitions of the RGMII mode shadow register. The 5785 needs the RGMII mode selection bits [4:3] cleared. The default value of the remaining bits in this register are zero. Rather than unnecessarily burn an extra bit in the dev_flags member in an attempt to enumerate all possible combinations, this patch take a more course grained approach and labels the option as "clear all bits". Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/phy/broadcom.c | 6 ++++++ drivers/net/tg3.c | 1 + include/linux/brcmphy.h | 1 + 3 files changed, 8 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index ace0ccc87a00..5d2a2e90aba8 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -105,6 +105,7 @@ #define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4) /* LED1 / ~LINKSPD[1] selector */ #define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0) +#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */ #define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */ #define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */ #define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */ @@ -330,6 +331,11 @@ static int bcm54xx_config_init(struct phy_device *phydev) if (err < 0) return err; + if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || + BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && + (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE)) + bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0); + bcm54xx_phydsp_config(phydev); return 0; diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 0aecd07d3f6b..e7128f6ae2d8 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1100,6 +1100,7 @@ static int tg3_mdio_init(struct tg3 *tp) break; case TG3_PHY_ID_BCM50610: case TG3_PHY_ID_BCM50610M: + phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE; if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE; if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN) diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index daa1480fcf49..6e7ffcee9c80 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -8,4 +8,5 @@ #define PHY_BRCM_STD_IBND_DISABLE 0x00000800 #define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000 #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 +#define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 #define PHY_BCM_FLAGS_VALID 0x80000000 -- cgit v1.2.3 From 32e5a8d651c0dbb02bf82ca954206282e44c4b11 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 2 Nov 2009 14:31:39 +0000 Subject: tg3 / broadcom: Add code to disable rxc refclk The 5785 does not use the RXC reference clock. Turning it off is desirable as it saves power. By default, the 50610 enables the RXC reference clock and the 50610M disables it. Presumably this is one of the reasons why the hardware architect chose one over the other. Adding a "rx reference clock disable" flag is not the ideal way to describe the option, as it would force the MAC using a 50610M to set the flag. Ideally we want the flags to represent opt-in behavior that deviates from hardware defaults. Furthermore, the lack of a "disable" flag implies that the requester wants the rx reference clock enabled, which doesn't necessarily follow. By presenting the option as a passive statement (rx reference clock unused) rather than a command, I hope to convey an opt-in option to disable the rx reference clock that falls back to hardware defaults if not set. A secondary benefit of this is that it keeps the intelligence about phy defaults in the broadcom module where it belongs and allows the broadcom module more latitude should a bug arise. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/phy/broadcom.c | 43 +++++++++++++++++++++++++++++++++++++++++++ drivers/net/tg3.c | 3 ++- include/linux/brcmphy.h | 2 +- 3 files changed, 46 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index bddf4a42ae68..74914335f72c 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -25,6 +25,9 @@ #define BRCM_PHY_MODEL(phydev) \ ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask) +#define BRCM_PHY_REV(phydev) \ + ((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask)) + #define MII_BCM54XX_ECR 0x10 /* BCM54xx extended control register */ #define MII_BCM54XX_ECR_IM 0x1000 /* Interrupt mask */ @@ -95,11 +98,16 @@ #define BCM_LED_SRC_OFF 0xe /* Tied high */ #define BCM_LED_SRC_ON 0xf /* Tied low */ + /* * BCM5482: Shadow registers * Shadow values go into bits [14:10] of register 0x1c to select a shadow * register to access. */ +/* 00101: Spare Control Register 3 */ +#define BCM54XX_SHD_SCR3 0x05 +#define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001 + #define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */ /* LED3 / ~LINKSPD[2] selector */ #define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4) @@ -112,6 +120,7 @@ #define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */ #define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */ + /* * EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17) */ @@ -309,6 +318,37 @@ error: return err ? err : err2; } +static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) +{ + u32 val, orig; + + /* Abort if we are using an untested phy. */ + if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 || + BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M) + return; + + val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_SCR3); + if (val < 0) + return; + + orig = val; + + if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) { + if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || + BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && + BRCM_PHY_REV(phydev) >= 0x3) { + /* Here, bit 0 _disables_ CLK125 when set */ + val |= BCM54XX_SHD_SCR3_DEF_CLK125; + } else { + /* Here, bit 0 _enables_ CLK125 when set */ + val &= ~BCM54XX_SHD_SCR3_DEF_CLK125; + } + } + + if (orig != val) + bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val); +} + static int bcm54xx_config_init(struct phy_device *phydev) { int reg, err; @@ -336,6 +376,9 @@ static int bcm54xx_config_init(struct phy_device *phydev) (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE)) bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0); + if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) + bcm54xx_adjust_rxrefclk(phydev); + bcm54xx_phydsp_config(phydev); return 0; diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 592b5bf09e40..369ddba95821 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1100,7 +1100,8 @@ static int tg3_mdio_init(struct tg3 *tp) break; case TG3_PHY_ID_BCM50610: case TG3_PHY_ID_BCM50610M: - phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE; + phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE | + PHY_BRCM_RX_REFCLK_UNUSED; if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE; if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN) diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index 6e7ffcee9c80..59432278ded2 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -4,7 +4,7 @@ #define PHY_BCM_FLAGS_INTF_XAUI 0x00000020 #define PHY_BRCM_WIRESPEED_ENABLE 0x00000100 #define PHY_BRCM_AUTO_PWRDWN_ENABLE 0x00000200 -#define PHY_BRCM_APD_CLK125_ENABLE 0x00000400 +#define PHY_BRCM_RX_REFCLK_UNUSED 0x00000400 #define PHY_BRCM_STD_IBND_DISABLE 0x00000800 #define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000 #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 -- cgit v1.2.3 From 52fae0837153e86e4dabaf5df517a0b8b7a20bd7 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 2 Nov 2009 14:32:38 +0000 Subject: tg3 / broadcom: Optionally disable TXC if no link This patch adds code to disable the TXC and RXC reference clocks if link is not available. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/phy/broadcom.c | 5 +++++ drivers/net/tg3.c | 1 + include/linux/brcmphy.h | 1 + 3 files changed, 7 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 7b10495fe8fb..f63c96a4ecb4 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -108,6 +108,7 @@ #define BCM54XX_SHD_SCR3 0x05 #define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001 #define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002 +#define BCM54XX_SHD_SCR3_TRDDAPD 0x0004 /* 01010: Auto Power-Down */ #define BCM54XX_SHD_APD 0x0a @@ -362,6 +363,9 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) else val |= BCM54XX_SHD_SCR3_DLLAPD_DIS; + if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) + val |= BCM54XX_SHD_SCR3_TRDDAPD; + if (orig != val) bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val); @@ -409,6 +413,7 @@ static int bcm54xx_config_init(struct phy_device *phydev) bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0); if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) || + (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) bcm54xx_adjust_rxrefclk(phydev); diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index f74bf91e78cc..50bb53de5ebd 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1103,6 +1103,7 @@ static int tg3_mdio_init(struct tg3 *tp) case TG3_PHY_ID_BCM50610M: phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE | PHY_BRCM_RX_REFCLK_UNUSED | + PHY_BRCM_DIS_TXCRXC_NOENRGY | PHY_BRCM_AUTO_PWRDWN_ENABLE; if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE; diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index 59432278ded2..2b31b91f5871 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -9,4 +9,5 @@ #define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000 #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 #define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 +#define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000 #define PHY_BCM_FLAGS_VALID 0x80000000 -- cgit v1.2.3 From 7a8b3372e29ff58ebdf94def26703afabd287f11 Mon Sep 17 00:00:00 2001 From: Sandeep Gopalpet Date: Mon, 2 Nov 2009 07:03:40 +0000 Subject: gianfar: Basic Support for programming hash rules This patch provides basic hash rules programming via the ethtool interface. Signed-off-by: Sandeep Gopalpet Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 73 +++++++++++++ drivers/net/gianfar.h | 93 +++++++++++++++++ drivers/net/gianfar_ethtool.c | 236 ++++++++++++++++++++++++++++++++++++++++++ include/linux/ethtool.h | 2 + 4 files changed, 404 insertions(+) (limited to 'include/linux') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index dc9fba09b17c..086d40dd526d 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -431,6 +431,9 @@ static const struct net_device_ops gfar_netdev_ops = { #endif }; +unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; +unsigned int ftp_rqfcr[MAX_FILER_IDX + 1]; + void lock_rx_qs(struct gfar_private *priv) { int i = 0x0; @@ -766,6 +769,73 @@ static unsigned int reverse_bitmap(unsigned int bit_map, unsigned int max_qs) } return new_bit_map; } + +u32 cluster_entry_per_class(struct gfar_private *priv, u32 rqfar, u32 class) +{ + u32 rqfpr = FPR_FILER_MASK; + u32 rqfcr = 0x0; + + rqfar--; + rqfcr = RQFCR_CLE | RQFCR_PID_MASK | RQFCR_CMP_EXACT; + ftp_rqfpr[rqfar] = rqfpr; + ftp_rqfcr[rqfar] = rqfcr; + gfar_write_filer(priv, rqfar, rqfcr, rqfpr); + + rqfar--; + rqfcr = RQFCR_CMP_NOMATCH; + ftp_rqfpr[rqfar] = rqfpr; + ftp_rqfcr[rqfar] = rqfcr; + gfar_write_filer(priv, rqfar, rqfcr, rqfpr); + + rqfar--; + rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND; + rqfpr = class; + ftp_rqfcr[rqfar] = rqfcr; + ftp_rqfpr[rqfar] = rqfpr; + gfar_write_filer(priv, rqfar, rqfcr, rqfpr); + + rqfar--; + rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_MASK | RQFCR_AND; + rqfpr = class; + ftp_rqfcr[rqfar] = rqfcr; + ftp_rqfpr[rqfar] = rqfpr; + gfar_write_filer(priv, rqfar, rqfcr, rqfpr); + + return rqfar; +} + +static void gfar_init_filer_table(struct gfar_private *priv) +{ + int i = 0x0; + u32 rqfar = MAX_FILER_IDX; + u32 rqfcr = 0x0; + u32 rqfpr = FPR_FILER_MASK; + + /* Default rule */ + rqfcr = RQFCR_CMP_MATCH; + ftp_rqfcr[rqfar] = rqfcr; + ftp_rqfpr[rqfar] = rqfpr; + gfar_write_filer(priv, rqfar, rqfcr, rqfpr); + + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6); + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_UDP); + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_TCP); + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4); + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_UDP); + rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_TCP); + + /* cur_filer_idx indicated the fisrt non-masked rule */ + priv->cur_filer_idx = rqfar; + + /* Rest are masked rules */ + rqfcr = RQFCR_CMP_NOMATCH; + for (i = 0; i < rqfar; i++) { + ftp_rqfcr[i] = rqfcr; + ftp_rqfpr[i] = rqfpr; + gfar_write_filer(priv, i, rqfcr, rqfpr); + } +} + /* Set up the ethernet device structure, private data, * and anything else we need before we start */ static int gfar_probe(struct of_device *ofdev, @@ -1005,6 +1075,9 @@ static int gfar_probe(struct of_device *ofdev, priv->gfargrp[i].int_name_tx[len_devname] = '\0'; } + /* Initialize the filer table */ + gfar_init_filer_table(priv); + /* Create all the sysfs files */ gfar_init_sysfs(dev); diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index a2c1f963cdd6..44b63daa7ff3 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -381,6 +381,84 @@ extern const char gfar_driver_version[]; #define BD_LFLAG(flags) ((flags) << 16) #define BD_LENGTH_MASK 0x0000ffff +#define CLASS_CODE_UNRECOG 0x00 +#define CLASS_CODE_DUMMY1 0x01 +#define CLASS_CODE_ETHERTYPE1 0x02 +#define CLASS_CODE_ETHERTYPE2 0x03 +#define CLASS_CODE_USER_PROG1 0x04 +#define CLASS_CODE_USER_PROG2 0x05 +#define CLASS_CODE_USER_PROG3 0x06 +#define CLASS_CODE_USER_PROG4 0x07 +#define CLASS_CODE_TCP_IPV4 0x08 +#define CLASS_CODE_UDP_IPV4 0x09 +#define CLASS_CODE_AH_ESP_IPV4 0x0a +#define CLASS_CODE_SCTP_IPV4 0x0b +#define CLASS_CODE_TCP_IPV6 0x0c +#define CLASS_CODE_UDP_IPV6 0x0d +#define CLASS_CODE_AH_ESP_IPV6 0x0e +#define CLASS_CODE_SCTP_IPV6 0x0f + +#define FPR_FILER_MASK 0xFFFFFFFF +#define MAX_FILER_IDX 0xFF + +/* RQFCR register bits */ +#define RQFCR_GPI 0x80000000 +#define RQFCR_HASHTBL_Q 0x00000000 +#define RQFCR_HASHTBL_0 0x00020000 +#define RQFCR_HASHTBL_1 0x00040000 +#define RQFCR_HASHTBL_2 0x00060000 +#define RQFCR_HASHTBL_3 0x00080000 +#define RQFCR_HASH 0x00010000 +#define RQFCR_CLE 0x00000200 +#define RQFCR_RJE 0x00000100 +#define RQFCR_AND 0x00000080 +#define RQFCR_CMP_EXACT 0x00000000 +#define RQFCR_CMP_MATCH 0x00000020 +#define RQFCR_CMP_NOEXACT 0x00000040 +#define RQFCR_CMP_NOMATCH 0x00000060 + +/* RQFCR PID values */ +#define RQFCR_PID_MASK 0x00000000 +#define RQFCR_PID_PARSE 0x00000001 +#define RQFCR_PID_ARB 0x00000002 +#define RQFCR_PID_DAH 0x00000003 +#define RQFCR_PID_DAL 0x00000004 +#define RQFCR_PID_SAH 0x00000005 +#define RQFCR_PID_SAL 0x00000006 +#define RQFCR_PID_ETY 0x00000007 +#define RQFCR_PID_VID 0x00000008 +#define RQFCR_PID_PRI 0x00000009 +#define RQFCR_PID_TOS 0x0000000A +#define RQFCR_PID_L4P 0x0000000B +#define RQFCR_PID_DIA 0x0000000C +#define RQFCR_PID_SIA 0x0000000D +#define RQFCR_PID_DPT 0x0000000E +#define RQFCR_PID_SPT 0x0000000F + +/* RQFPR when PID is 0x0001 */ +#define RQFPR_HDR_GE_512 0x00200000 +#define RQFPR_LERR 0x00100000 +#define RQFPR_RAR 0x00080000 +#define RQFPR_RARQ 0x00040000 +#define RQFPR_AR 0x00020000 +#define RQFPR_ARQ 0x00010000 +#define RQFPR_EBC 0x00008000 +#define RQFPR_VLN 0x00004000 +#define RQFPR_CFI 0x00002000 +#define RQFPR_JUM 0x00001000 +#define RQFPR_IPF 0x00000800 +#define RQFPR_FIF 0x00000400 +#define RQFPR_IPV4 0x00000200 +#define RQFPR_IPV6 0x00000100 +#define RQFPR_ICC 0x00000080 +#define RQFPR_ICV 0x00000040 +#define RQFPR_TCP 0x00000020 +#define RQFPR_UDP 0x00000010 +#define RQFPR_TUC 0x00000008 +#define RQFPR_TUV 0x00000004 +#define RQFPR_PER 0x00000002 +#define RQFPR_EER 0x00000001 + /* TxBD status field bits */ #define TXBD_READY 0x8000 #define TXBD_PADCRC 0x4000 @@ -959,6 +1037,8 @@ struct gfar_private { unsigned int rx_stash_size; unsigned int rx_stash_index; + u32 cur_filer_idx; + struct sk_buff_head rx_recycle; struct vlan_group *vlgrp; @@ -1002,6 +1082,9 @@ struct gfar_private { struct gfar_extra_stats extra_stats; }; +extern unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; +extern unsigned int ftp_rqfcr[MAX_FILER_IDX + 1]; + static inline u32 gfar_read(volatile unsigned __iomem *addr) { u32 val; @@ -1014,6 +1097,16 @@ static inline void gfar_write(volatile unsigned __iomem *addr, u32 val) out_be32(addr, val); } +static inline void gfar_write_filer(struct gfar_private *priv, + unsigned int far, unsigned int fcr, unsigned int fpr) +{ + struct gfar __iomem *regs = priv->gfargrp[0].regs; + + gfar_write(®s->rqfar, far); + gfar_write(®s->rqfcr, fcr); + gfar_write(®s->rqfpr, fpr); +} + extern void lock_rx_qs(struct gfar_private *priv); extern void lock_tx_qs(struct gfar_private *priv); extern void unlock_rx_qs(struct gfar_private *priv); diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c index 562f6c20f591..1010367695e4 100644 --- a/drivers/net/gianfar_ethtool.c +++ b/drivers/net/gianfar_ethtool.c @@ -645,6 +645,241 @@ static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) } #endif +static int gfar_ethflow_to_class(int flow_type, u64 *class) +{ + switch (flow_type) { + case TCP_V4_FLOW: + *class = CLASS_CODE_TCP_IPV4; + break; + case UDP_V4_FLOW: + *class = CLASS_CODE_UDP_IPV4; + break; + case AH_V4_FLOW: + case ESP_V4_FLOW: + *class = CLASS_CODE_AH_ESP_IPV4; + break; + case SCTP_V4_FLOW: + *class = CLASS_CODE_SCTP_IPV4; + break; + case TCP_V6_FLOW: + *class = CLASS_CODE_TCP_IPV6; + break; + case UDP_V6_FLOW: + *class = CLASS_CODE_UDP_IPV6; + break; + case AH_V6_FLOW: + case ESP_V6_FLOW: + *class = CLASS_CODE_AH_ESP_IPV6; + break; + case SCTP_V6_FLOW: + *class = CLASS_CODE_SCTP_IPV6; + break; + default: + return 0; + } + + return 1; +} + +static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) +{ + u32 fcr = 0x0, fpr = FPR_FILER_MASK; + + if (ethflow & RXH_L2DA) { + fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH | + RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + + fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH | + RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_VLAN) { + fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_IP_SRC) { + fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & (RXH_IP_DST)) { + fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L3_PROTO) { + fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L4_B_0_1) { + fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L4_B_2_3) { + fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + ftp_rqfpr[priv->cur_filer_idx] = fpr; + ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } +} + +static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class) +{ + unsigned int last_rule_idx = priv->cur_filer_idx; + unsigned int cmp_rqfpr; + unsigned int local_rqfpr[MAX_FILER_IDX + 1]; + unsigned int local_rqfcr[MAX_FILER_IDX + 1]; + int i = 0x0, k = 0x0; + int j = MAX_FILER_IDX, l = 0x0; + + switch (class) { + case TCP_V4_FLOW: + cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; + break; + case UDP_V4_FLOW: + cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; + break; + case TCP_V6_FLOW: + cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; + break; + case UDP_V6_FLOW: + cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; + break; + case IPV4_FLOW: + cmp_rqfpr = RQFPR_IPV4; + case IPV6_FLOW: + cmp_rqfpr = RQFPR_IPV6; + break; + default: + printk(KERN_ERR "Right now this class is not supported\n"); + return 0; + } + + for (i = 0; i < MAX_FILER_IDX + 1; i++) { + local_rqfpr[j] = ftp_rqfpr[i]; + local_rqfcr[j] = ftp_rqfcr[i]; + j--; + if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE | + RQFCR_CLE |RQFCR_AND)) && + (ftp_rqfpr[i] == cmp_rqfpr)) + break; + } + + if (i == MAX_FILER_IDX + 1) { + printk(KERN_ERR "No parse rule found, "); + printk(KERN_ERR "can't create hash rules\n"); + return 0; + } + + /* If a match was found, then it begins the starting of a cluster rule + * if it was already programmed, we need to overwrite these rules + */ + for (l = i+1; l < MAX_FILER_IDX; l++) { + if ((ftp_rqfcr[l] & RQFCR_CLE) && + !(ftp_rqfcr[l] & RQFCR_AND)) { + ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | + RQFCR_HASHTBL_0 | RQFCR_PID_MASK; + ftp_rqfpr[l] = FPR_FILER_MASK; + gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]); + break; + } + + if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND)) + continue; + else { + local_rqfpr[j] = ftp_rqfpr[l]; + local_rqfcr[j] = ftp_rqfcr[l]; + j--; + } + } + + priv->cur_filer_idx = l - 1; + last_rule_idx = l; + + /* hash rules */ + ethflow_to_filer_rules(priv, ethflow); + + /* Write back the popped out rules again */ + for (k = j+1; k < MAX_FILER_IDX; k++) { + ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; + ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; + gfar_write_filer(priv, priv->cur_filer_idx, + local_rqfcr[k], local_rqfpr[k]); + if (!priv->cur_filer_idx) + break; + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + return 1; +} + +static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd) +{ + u64 class; + + if (!gfar_ethflow_to_class(cmd->flow_type, &class)) + return -EINVAL; + + if (class < CLASS_CODE_USER_PROG1 || + class > CLASS_CODE_SCTP_IPV6) + return -EINVAL; + + /* write the filer rules here */ + if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) + return -1; + + return 0; +} + +static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) +{ + struct gfar_private *priv = netdev_priv(dev); + int ret = 0; + + switch(cmd->cmd) { + case ETHTOOL_SRXFH: + ret = gfar_set_hash_opts(priv, cmd); + break; + default: + ret = -EINVAL; + } + + return ret; +} + const struct ethtool_ops gfar_ethtool_ops = { .get_settings = gfar_gsettings, .set_settings = gfar_ssettings, @@ -670,4 +905,5 @@ const struct ethtool_ops gfar_ethtool_ops = { .get_wol = gfar_get_wol, .set_wol = gfar_set_wol, #endif + .set_rxnfc = gfar_set_nfc, }; diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index eb1a48da2d43..edd03b79e8f8 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -674,6 +674,8 @@ struct ethtool_ops { #define AH_V6_FLOW 0x0b #define ESP_V6_FLOW 0x0c #define IP_USER_FLOW 0x0d +#define IPV4_FLOW 0x10 +#define IPV6_FLOW 0x11 /* L3-L4 network traffic flow hash options */ #define RXH_L2DA (1 << 1) -- cgit v1.2.3 From c6d14c84566d6b70ad9dc1618db0dec87cca9300 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 4 Nov 2009 05:43:23 -0800 Subject: net: Introduce for_each_netdev_rcu() iterator Adds RCU management to the list of netdevices. Convert some for_each_netdev() users to RCU version, if it can avoid read_lock-ing dev_base_lock Ie: read_lock(&dev_base_loack); for_each_netdev(net, dev) some_action(); read_unlock(&dev_base_lock); becomes : rcu_read_lock(); for_each_netdev_rcu(net, dev) some_action(); rcu_read_unlock(); Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ net/core/dev.c | 30 ++++++++++++++++-------------- net/decnet/af_decnet.c | 6 +++--- net/decnet/dn_fib.c | 6 +++--- net/decnet/dn_route.c | 6 +++--- net/ipv4/devinet.c | 30 +++++++++++------------------- net/ipv6/addrconf.c | 20 +++++++------------- net/ipv6/anycast.c | 6 +++--- net/netrom/nr_route.c | 15 ++++++++------- net/rose/rose_route.c | 18 +++++++++--------- net/sctp/protocol.c | 6 +++--- 11 files changed, 68 insertions(+), 77 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index bcf1083857fc..5077de028317 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1081,6 +1081,8 @@ extern rwlock_t dev_base_lock; /* Device list lock */ #define for_each_netdev(net, d) \ list_for_each_entry(d, &(net)->dev_base_head, dev_list) +#define for_each_netdev_rcu(net, d) \ + list_for_each_entry_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_safe(net, d, n) \ list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue(net, d) \ diff --git a/net/core/dev.c b/net/core/dev.c index 76a1502efe67..bf629ac08b87 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -175,7 +175,7 @@ static struct list_head ptype_all __read_mostly; /* Taps */ * The @dev_base_head list is protected by @dev_base_lock and the rtnl * semaphore. * - * Pure readers hold dev_base_lock for reading. + * Pure readers hold dev_base_lock for reading, or rcu_read_lock() * * Writers must hold the rtnl semaphore while they loop through the * dev_base_head list, and hold dev_base_lock for writing when they do the @@ -212,7 +212,7 @@ static int list_netdevice(struct net_device *dev) ASSERT_RTNL(); write_lock_bh(&dev_base_lock); - list_add_tail(&dev->dev_list, &net->dev_base_head); + list_add_tail_rcu(&dev->dev_list, &net->dev_base_head); hlist_add_head_rcu(&dev->name_hlist, dev_name_hash(net, dev->name)); hlist_add_head_rcu(&dev->index_hlist, dev_index_hash(net, dev->ifindex)); @@ -229,7 +229,7 @@ static void unlist_netdevice(struct net_device *dev) /* Unlink dev from the device chain */ write_lock_bh(&dev_base_lock); - list_del(&dev->dev_list); + list_del_rcu(&dev->dev_list); hlist_del_rcu(&dev->name_hlist); hlist_del_rcu(&dev->index_hlist); write_unlock_bh(&dev_base_lock); @@ -799,15 +799,15 @@ struct net_device *dev_get_by_flags(struct net *net, unsigned short if_flags, struct net_device *dev, *ret; ret = NULL; - read_lock(&dev_base_lock); - for_each_netdev(net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(net, dev) { if (((dev->flags ^ if_flags) & mask) == 0) { dev_hold(dev); ret = dev; break; } } - read_unlock(&dev_base_lock); + rcu_read_unlock(); return ret; } EXPORT_SYMBOL(dev_get_by_flags); @@ -3077,18 +3077,18 @@ static int dev_ifconf(struct net *net, char __user *arg) * in detail. */ void *dev_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(dev_base_lock) + __acquires(RCU) { struct net *net = seq_file_net(seq); loff_t off; struct net_device *dev; - read_lock(&dev_base_lock); + rcu_read_lock(); if (!*pos) return SEQ_START_TOKEN; off = 1; - for_each_netdev(net, dev) + for_each_netdev_rcu(net, dev) if (off++ == *pos) return dev; @@ -3097,16 +3097,18 @@ void *dev_seq_start(struct seq_file *seq, loff_t *pos) void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct net *net = seq_file_net(seq); + struct net_device *dev = (v == SEQ_START_TOKEN) ? + first_net_device(seq_file_net(seq)) : + next_net_device((struct net_device *)v); + ++*pos; - return v == SEQ_START_TOKEN ? - first_net_device(net) : next_net_device((struct net_device *)v); + return rcu_dereference(dev); } void dev_seq_stop(struct seq_file *seq, void *v) - __releases(dev_base_lock) + __releases(RCU) { - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev) diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 664965c87e16..2e355841ca99 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -749,9 +749,9 @@ static int dn_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) if (!(saddr->sdn_flags & SDF_WILD)) { if (le16_to_cpu(saddr->sdn_nodeaddrl)) { - read_lock(&dev_base_lock); + rcu_read_lock(); ldev = NULL; - for_each_netdev(&init_net, dev) { + for_each_netdev_rcu(&init_net, dev) { if (!dev->dn_ptr) continue; if (dn_dev_islocal(dev, dn_saddr2dn(saddr))) { @@ -759,7 +759,7 @@ static int dn_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) break; } } - read_unlock(&dev_base_lock); + rcu_read_unlock(); if (ldev == NULL) return -EADDRNOTAVAIL; } diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c index 27ea2e9b080a..fd641f65e092 100644 --- a/net/decnet/dn_fib.c +++ b/net/decnet/dn_fib.c @@ -607,8 +607,8 @@ static void dn_fib_del_ifaddr(struct dn_ifaddr *ifa) ASSERT_RTNL(); /* Scan device list */ - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { dn_db = dev->dn_ptr; if (dn_db == NULL) continue; @@ -619,7 +619,7 @@ static void dn_fib_del_ifaddr(struct dn_ifaddr *ifa) } } } - read_unlock(&dev_base_lock); + rcu_read_unlock(); if (found_it == 0) { fib_magic(RTM_DELROUTE, RTN_LOCAL, ifa->ifa_local, 16, ifa); diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c index 57662cabaf9b..860286a3921b 100644 --- a/net/decnet/dn_route.c +++ b/net/decnet/dn_route.c @@ -908,8 +908,8 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old dev_put(dev_out); goto out; } - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { if (!dev->dn_ptr) continue; if (!dn_dev_islocal(dev, oldflp->fld_src)) @@ -922,7 +922,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old dev_out = dev; break; } - read_unlock(&dev_base_lock); + rcu_read_unlock(); if (dev_out == NULL) goto out; dev_hold(dev_out); diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index ccccaae50b20..8aa7a134c1f1 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -876,19 +876,16 @@ __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope) if (!addr) addr = ifa->ifa_local; } endfor_ifa(in_dev); -no_in_dev: - rcu_read_unlock(); +no_in_dev: if (addr) - goto out; + goto out_unlock; /* Not loopback addresses on loopback should be preferred in this case. It is importnat that lo is the first interface in dev_base list. */ - read_lock(&dev_base_lock); - rcu_read_lock(); - for_each_netdev(net, dev) { + for_each_netdev_rcu(net, dev) { if ((in_dev = __in_dev_get_rcu(dev)) == NULL) continue; @@ -896,12 +893,11 @@ no_in_dev: if (ifa->ifa_scope != RT_SCOPE_LINK && ifa->ifa_scope <= scope) { addr = ifa->ifa_local; - goto out_unlock_both; + goto out_unlock; } } endfor_ifa(in_dev); } -out_unlock_both: - read_unlock(&dev_base_lock); +out_unlock: rcu_read_unlock(); out: return addr; @@ -962,9 +958,8 @@ __be32 inet_confirm_addr(struct in_device *in_dev, return confirm_addr_indev(in_dev, dst, local, scope); net = dev_net(in_dev->dev); - read_lock(&dev_base_lock); rcu_read_lock(); - for_each_netdev(net, dev) { + for_each_netdev_rcu(net, dev) { if ((in_dev = __in_dev_get_rcu(dev))) { addr = confirm_addr_indev(in_dev, dst, local, scope); if (addr) @@ -972,7 +967,6 @@ __be32 inet_confirm_addr(struct in_device *in_dev, } } rcu_read_unlock(); - read_unlock(&dev_base_lock); return addr; } @@ -1240,18 +1234,18 @@ static void devinet_copy_dflt_conf(struct net *net, int i) { struct net_device *dev; - read_lock(&dev_base_lock); - for_each_netdev(net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(net, dev) { struct in_device *in_dev; - rcu_read_lock(); + in_dev = __in_dev_get_rcu(dev); if (in_dev && !test_bit(i, in_dev->cnf.state)) in_dev->cnf.data[i] = net->ipv4.devconf_dflt->data[i]; - rcu_read_unlock(); } - read_unlock(&dev_base_lock); + rcu_read_unlock(); } +/* called with RTNL locked */ static void inet_forward_change(struct net *net) { struct net_device *dev; @@ -1260,7 +1254,6 @@ static void inet_forward_change(struct net *net) IPV4_DEVCONF_ALL(net, ACCEPT_REDIRECTS) = !on; IPV4_DEVCONF_DFLT(net, FORWARDING) = on; - read_lock(&dev_base_lock); for_each_netdev(net, dev) { struct in_device *in_dev; if (on) @@ -1271,7 +1264,6 @@ static void inet_forward_change(struct net *net) IN_DEV_CONF_SET(in_dev, FORWARDING, on); rcu_read_unlock(); } - read_unlock(&dev_base_lock); } static int devinet_conf_proc(ctl_table *ctl, int write, diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 918648409612..024bba30de21 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -481,9 +481,8 @@ static void addrconf_forward_change(struct net *net, __s32 newf) struct net_device *dev; struct inet6_dev *idev; - read_lock(&dev_base_lock); - for_each_netdev(net, dev) { - rcu_read_lock(); + rcu_read_lock(); + for_each_netdev_rcu(net, dev) { idev = __in6_dev_get(dev); if (idev) { int changed = (!idev->cnf.forwarding) ^ (!newf); @@ -491,9 +490,8 @@ static void addrconf_forward_change(struct net *net, __s32 newf) if (changed) dev_forward_change(idev); } - rcu_read_unlock(); } - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old) @@ -1137,10 +1135,9 @@ int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev, hiscore->rule = -1; hiscore->ifa = NULL; - read_lock(&dev_base_lock); rcu_read_lock(); - for_each_netdev(net, dev) { + for_each_netdev_rcu(net, dev) { struct inet6_dev *idev; /* Candidate Source Address (section 4) @@ -1235,7 +1232,6 @@ try_nextdev: read_unlock_bh(&idev->lock); } rcu_read_unlock(); - read_unlock(&dev_base_lock); if (!hiscore->ifa) return -EADDRNOTAVAIL; @@ -4052,9 +4048,8 @@ static void addrconf_disable_change(struct net *net, __s32 newf) struct net_device *dev; struct inet6_dev *idev; - read_lock(&dev_base_lock); - for_each_netdev(net, dev) { - rcu_read_lock(); + rcu_read_lock(); + for_each_netdev_rcu(net, dev) { idev = __in6_dev_get(dev); if (idev) { int changed = (!idev->cnf.disable_ipv6) ^ (!newf); @@ -4062,9 +4057,8 @@ static void addrconf_disable_change(struct net *net, __s32 newf) if (changed) dev_disable_change(idev); } - rcu_read_unlock(); } - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old) diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index 1ae58bec1de0..2f00ca83f049 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -404,13 +404,13 @@ int ipv6_chk_acast_addr(struct net *net, struct net_device *dev, if (dev) return ipv6_chk_acast_dev(dev, addr); - read_lock(&dev_base_lock); - for_each_netdev(net, dev) + rcu_read_lock(); + for_each_netdev_rcu(net, dev) if (ipv6_chk_acast_dev(dev, addr)) { found = 1; break; } - read_unlock(&dev_base_lock); + rcu_read_unlock(); return found; } diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index 4eb1ac9a7679..aacba76070fc 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -597,15 +597,15 @@ struct net_device *nr_dev_first(void) { struct net_device *dev, *first = NULL; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { if ((dev->flags & IFF_UP) && dev->type == ARPHRD_NETROM) if (first == NULL || strncmp(dev->name, first->name, 3) < 0) first = dev; } if (first) dev_hold(first); - read_unlock(&dev_base_lock); + rcu_read_unlock(); return first; } @@ -617,16 +617,17 @@ struct net_device *nr_dev_get(ax25_address *addr) { struct net_device *dev; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { - if ((dev->flags & IFF_UP) && dev->type == ARPHRD_NETROM && ax25cmp(addr, (ax25_address *)dev->dev_addr) == 0) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { + if ((dev->flags & IFF_UP) && dev->type == ARPHRD_NETROM && + ax25cmp(addr, (ax25_address *)dev->dev_addr) == 0) { dev_hold(dev); goto out; } } dev = NULL; out: - read_unlock(&dev_base_lock); + rcu_read_unlock(); return dev; } diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c index 9478d9b3d977..d936226916f2 100644 --- a/net/rose/rose_route.c +++ b/net/rose/rose_route.c @@ -600,13 +600,13 @@ struct net_device *rose_dev_first(void) { struct net_device *dev, *first = NULL; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE) if (first == NULL || strncmp(dev->name, first->name, 3) < 0) first = dev; } - read_unlock(&dev_base_lock); + rcu_read_unlock(); return first; } @@ -618,8 +618,8 @@ struct net_device *rose_dev_get(rose_address *addr) { struct net_device *dev; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0) { dev_hold(dev); goto out; @@ -627,7 +627,7 @@ struct net_device *rose_dev_get(rose_address *addr) } dev = NULL; out: - read_unlock(&dev_base_lock); + rcu_read_unlock(); return dev; } @@ -635,14 +635,14 @@ static int rose_dev_exists(rose_address *addr) { struct net_device *dev; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0) goto out; } dev = NULL; out: - read_unlock(&dev_base_lock); + rcu_read_unlock(); return dev != NULL; } diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index d9f4cc2c7869..fe44c57101de 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -205,14 +205,14 @@ static void sctp_get_local_addr_list(void) struct list_head *pos; struct sctp_af *af; - read_lock(&dev_base_lock); - for_each_netdev(&init_net, dev) { + rcu_read_lock(); + for_each_netdev_rcu(&init_net, dev) { __list_for_each(pos, &sctp_address_families) { af = list_entry(pos, struct sctp_af, list); af->copy_addrlist(&sctp_local_addr_list, dev); } } - read_unlock(&dev_base_lock); + rcu_read_unlock(); } /* Free the existing local addresses. */ -- cgit v1.2.3 From d94d9fee9fa4e66a0b91640a694b8b10177075b3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 4 Nov 2009 09:50:58 -0800 Subject: net: cleanup include/linux This cleanup patch puts struct/union/enum opening braces, in first line to ease grep games. struct something { becomes : struct something { Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/dn.h | 9 +- include/linux/errqueue.h | 6 +- include/linux/fib_rules.h | 9 +- include/linux/filter.h | 6 +- include/linux/gen_stats.h | 15 ++-- include/linux/if.h | 15 ++-- include/linux/if_addr.h | 9 +- include/linux/if_addrlabel.h | 6 +- include/linux/if_arcnet.h | 18 ++-- include/linux/if_arp.h | 3 +- include/linux/if_bonding.h | 3 +- include/linux/if_bridge.h | 9 +- include/linux/if_ec.h | 12 +-- include/linux/if_fddi.h | 22 ++--- include/linux/if_hippi.h | 15 ++-- include/linux/if_link.h | 27 ++---- include/linux/if_packet.h | 27 ++---- include/linux/if_plip.h | 3 +- include/linux/if_pppol2tp.h | 3 +- include/linux/if_tunnel.h | 6 +- include/linux/igmp.h | 15 ++-- include/linux/in.h | 18 ++-- include/linux/in6.h | 9 +- include/linux/inetdevice.h | 9 +- include/linux/ip_vs.h | 3 +- include/linux/mroute.h | 18 ++-- include/linux/mroute6.h | 15 ++-- include/linux/neighbour.h | 18 ++-- include/linux/netdevice.h | 30 +++---- include/linux/netfilter.h | 6 +- include/linux/netfilter/nf_conntrack_common.h | 6 +- include/linux/netfilter/nf_conntrack_ftp.h | 3 +- include/linux/netfilter/nf_conntrack_sctp.h | 3 +- include/linux/netfilter/nf_conntrack_tcp.h | 3 +- include/linux/netfilter/nfnetlink.h | 6 +- include/linux/netfilter/nfnetlink_compat.h | 3 +- include/linux/netfilter/x_tables.h | 45 ++++------ include/linux/netfilter/xt_connbytes.h | 3 +- include/linux/netfilter/xt_esp.h | 3 +- include/linux/netfilter/xt_multiport.h | 9 +- include/linux/netfilter/xt_policy.h | 18 ++-- include/linux/netfilter/xt_state.h | 3 +- include/linux/netfilter/xt_string.h | 3 +- include/linux/netfilter/xt_tcpudp.h | 6 +- include/linux/netfilter_arp/arp_tables.h | 21 ++--- include/linux/netfilter_bridge/ebt_802_3.h | 3 +- include/linux/netfilter_bridge/ebt_among.h | 9 +- include/linux/netfilter_bridge/ebt_arpreply.h | 3 +- include/linux/netfilter_bridge/ebt_ip.h | 3 +- include/linux/netfilter_bridge/ebt_ip6.h | 3 +- include/linux/netfilter_bridge/ebt_limit.h | 3 +- include/linux/netfilter_bridge/ebt_log.h | 3 +- include/linux/netfilter_bridge/ebt_mark_m.h | 3 +- include/linux/netfilter_bridge/ebt_mark_t.h | 3 +- include/linux/netfilter_bridge/ebt_nat.h | 3 +- include/linux/netfilter_bridge/ebt_pkttype.h | 3 +- include/linux/netfilter_bridge/ebt_redirect.h | 3 +- include/linux/netfilter_bridge/ebt_stp.h | 6 +- include/linux/netfilter_bridge/ebtables.h | 39 +++------ include/linux/netfilter_ipv4/ip_tables.h | 27 ++---- include/linux/netfilter_ipv4/ipt_SAME.h | 3 +- include/linux/netfilter_ipv4/ipt_ah.h | 3 +- include/linux/netfilter_ipv6/ip6_tables.h | 27 ++---- include/linux/netfilter_ipv6/ip6t_ah.h | 3 +- include/linux/netfilter_ipv6/ip6t_frag.h | 3 +- include/linux/netfilter_ipv6/ip6t_ipv6header.h | 3 +- include/linux/netfilter_ipv6/ip6t_mh.h | 3 +- include/linux/netfilter_ipv6/ip6t_opts.h | 3 +- include/linux/netfilter_ipv6/ip6t_rt.h | 3 +- include/linux/netlink.h | 24 ++---- include/linux/pkt_cls.h | 84 +++++++------------ include/linux/pkt_sched.h | 111 +++++++++---------------- include/linux/route.h | 3 +- include/linux/rtnetlink.h | 57 +++++-------- include/linux/skbuff.h | 3 +- include/linux/tc_act/tc_defact.h | 6 +- include/linux/tc_act/tc_gact.h | 9 +- include/linux/tc_act/tc_ipt.h | 3 +- include/linux/tc_act/tc_mirred.h | 6 +- include/linux/tc_act/tc_nat.h | 6 +- include/linux/tc_act/tc_pedit.h | 9 +- include/linux/tc_ematch/tc_em_cmp.h | 6 +- include/linux/tc_ematch/tc_em_meta.h | 15 ++-- include/linux/tc_ematch/tc_em_nbyte.h | 3 +- include/linux/tc_ematch/tc_em_text.h | 3 +- include/linux/tcp.h | 6 +- include/linux/xfrm.h | 27 ++---- 87 files changed, 351 insertions(+), 694 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dn.h b/include/linux/dn.h index fe9990823193..9c50445462d9 100644 --- a/include/linux/dn.h +++ b/include/linux/dn.h @@ -71,14 +71,12 @@ /* Structures */ -struct dn_naddr -{ +struct dn_naddr { __le16 a_len; __u8 a_addr[DN_MAXADDL]; /* Two bytes little endian */ }; -struct sockaddr_dn -{ +struct sockaddr_dn { __u16 sdn_family; __u8 sdn_flags; __u8 sdn_objnum; @@ -101,8 +99,7 @@ struct optdata_dn { __u8 opt_data[16]; /* User data */ }; -struct accessdata_dn -{ +struct accessdata_dn { __u8 acc_accl; __u8 acc_acc[DN_MAXACCL]; __u8 acc_passl; diff --git a/include/linux/errqueue.h b/include/linux/errqueue.h index ec12cc74366f..034072cea853 100644 --- a/include/linux/errqueue.h +++ b/include/linux/errqueue.h @@ -3,8 +3,7 @@ #include -struct sock_extended_err -{ +struct sock_extended_err { __u32 ee_errno; __u8 ee_origin; __u8 ee_type; @@ -31,8 +30,7 @@ struct sock_extended_err #define SKB_EXT_ERR(skb) ((struct sock_exterr_skb *) ((skb)->cb)) -struct sock_exterr_skb -{ +struct sock_exterr_skb { union { struct inet_skb_parm h4; #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h index 87b606b63f1e..c7e5b700bb91 100644 --- a/include/linux/fib_rules.h +++ b/include/linux/fib_rules.h @@ -13,8 +13,7 @@ /* try to find source address in routing lookups */ #define FIB_RULE_FIND_SADDR 0x00010000 -struct fib_rule_hdr -{ +struct fib_rule_hdr { __u8 family; __u8 dst_len; __u8 src_len; @@ -28,8 +27,7 @@ struct fib_rule_hdr __u32 flags; }; -enum -{ +enum { FRA_UNSPEC, FRA_DST, /* destination address */ FRA_SRC, /* source address */ @@ -52,8 +50,7 @@ enum #define FRA_MAX (__FRA_MAX - 1) -enum -{ +enum { FR_ACT_UNSPEC, FR_ACT_TO_TBL, /* Pass to fixed table */ FR_ACT_GOTO, /* Jump to another rule */ diff --git a/include/linux/filter.h b/include/linux/filter.h index bb3b4352978a..29a0e3db9f43 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -23,16 +23,14 @@ * the BPF code definitions which need to match so you can share filters */ -struct sock_filter /* Filter block */ -{ +struct sock_filter { /* Filter block */ __u16 code; /* Actual filter code */ __u8 jt; /* Jump true */ __u8 jf; /* Jump false */ __u32 k; /* Generic multiuse field */ }; -struct sock_fprog /* Required for SO_ATTACH_FILTER. */ -{ +struct sock_fprog { /* Required for SO_ATTACH_FILTER. */ unsigned short len; /* Number of filter blocks */ struct sock_filter __user *filter; }; diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h index 710e901085d0..552c8a0a12d1 100644 --- a/include/linux/gen_stats.h +++ b/include/linux/gen_stats.h @@ -18,13 +18,11 @@ enum { * @bytes: number of seen bytes * @packets: number of seen packets */ -struct gnet_stats_basic -{ +struct gnet_stats_basic { __u64 bytes; __u32 packets; }; -struct gnet_stats_basic_packed -{ +struct gnet_stats_basic_packed { __u64 bytes; __u32 packets; } __attribute__ ((packed)); @@ -34,8 +32,7 @@ struct gnet_stats_basic_packed * @bps: current byte rate * @pps: current packet rate */ -struct gnet_stats_rate_est -{ +struct gnet_stats_rate_est { __u32 bps; __u32 pps; }; @@ -48,8 +45,7 @@ struct gnet_stats_rate_est * @requeues: number of requeues * @overlimits: number of enqueues over the limit */ -struct gnet_stats_queue -{ +struct gnet_stats_queue { __u32 qlen; __u32 backlog; __u32 drops; @@ -62,8 +58,7 @@ struct gnet_stats_queue * @interval: sampling period * @ewma_log: the log of measurement window weight */ -struct gnet_estimator -{ +struct gnet_estimator { signed char interval; unsigned char ewma_log; }; diff --git a/include/linux/if.h b/include/linux/if.h index b9a6229f3be7..3b2a46bf8f8d 100644 --- a/include/linux/if.h +++ b/include/linux/if.h @@ -125,8 +125,7 @@ enum { * being very small might be worth keeping for clean configuration. */ -struct ifmap -{ +struct ifmap { unsigned long mem_start; unsigned long mem_end; unsigned short base_addr; @@ -136,8 +135,7 @@ struct ifmap /* 3 bytes spare */ }; -struct if_settings -{ +struct if_settings { unsigned int type; /* Type of physical device or protocol */ unsigned int size; /* Size of the data allocated by the caller */ union { @@ -161,8 +159,7 @@ struct if_settings * remainder may be interface specific. */ -struct ifreq -{ +struct ifreq { #define IFHWADDRLEN 6 union { @@ -211,11 +208,9 @@ struct ifreq * must know all networks accessible). */ -struct ifconf -{ +struct ifconf { int ifc_len; /* size of buffer */ - union - { + union { char __user *ifcu_buf; struct ifreq __user *ifcu_req; } ifc_ifcu; diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h index fd9740466757..23357ab81a77 100644 --- a/include/linux/if_addr.h +++ b/include/linux/if_addr.h @@ -4,8 +4,7 @@ #include #include -struct ifaddrmsg -{ +struct ifaddrmsg { __u8 ifa_family; __u8 ifa_prefixlen; /* The prefix length */ __u8 ifa_flags; /* Flags */ @@ -20,8 +19,7 @@ struct ifaddrmsg * but for point-to-point IFA_ADDRESS is DESTINATION address, * local address is supplied in IFA_LOCAL attribute. */ -enum -{ +enum { IFA_UNSPEC, IFA_ADDRESS, IFA_LOCAL, @@ -47,8 +45,7 @@ enum #define IFA_F_TENTATIVE 0x40 #define IFA_F_PERMANENT 0x80 -struct ifa_cacheinfo -{ +struct ifa_cacheinfo { __u32 ifa_prefered; __u32 ifa_valid; __u32 cstamp; /* created timestamp, hundredths of seconds */ diff --git a/include/linux/if_addrlabel.h b/include/linux/if_addrlabel.h index 89571f65d6de..54580c298187 100644 --- a/include/linux/if_addrlabel.h +++ b/include/linux/if_addrlabel.h @@ -12,8 +12,7 @@ #include -struct ifaddrlblmsg -{ +struct ifaddrlblmsg { __u8 ifal_family; /* Address family */ __u8 __ifal_reserved; /* Reserved */ __u8 ifal_prefixlen; /* Prefix length */ @@ -22,8 +21,7 @@ struct ifaddrlblmsg __u32 ifal_seq; /* sequence number */ }; -enum -{ +enum { IFAL_ADDRESS = 1, IFAL_LABEL = 2, __IFAL_MAX diff --git a/include/linux/if_arcnet.h b/include/linux/if_arcnet.h index 0835debab115..46e34bd0e783 100644 --- a/include/linux/if_arcnet.h +++ b/include/linux/if_arcnet.h @@ -56,8 +56,7 @@ /* * The RFC1201-specific components of an arcnet packet header. */ -struct arc_rfc1201 -{ +struct arc_rfc1201 { __u8 proto; /* protocol ID field - varies */ __u8 split_flag; /* for use with split packets */ __be16 sequence; /* sequence number */ @@ -69,8 +68,7 @@ struct arc_rfc1201 /* * The RFC1051-specific components. */ -struct arc_rfc1051 -{ +struct arc_rfc1051 { __u8 proto; /* ARC_P_RFC1051_ARP/RFC1051_IP */ __u8 payload[0]; /* 507 bytes */ }; @@ -81,8 +79,7 @@ struct arc_rfc1051 * The ethernet-encap-specific components. We have a real ethernet header * and some data. */ -struct arc_eth_encap -{ +struct arc_eth_encap { __u8 proto; /* Always ARC_P_ETHER */ struct ethhdr eth; /* standard ethernet header (yuck!) */ __u8 payload[0]; /* 493 bytes */ @@ -90,8 +87,7 @@ struct arc_eth_encap #define ETH_ENCAP_HDR_SIZE 14 -struct arc_cap -{ +struct arc_cap { __u8 proto; __u8 cookie[sizeof(int)]; /* Actually NOT sent over the network */ union { @@ -108,8 +104,7 @@ struct arc_cap * the _end_ of the 512-byte buffer. We hide this complexity inside the * driver. */ -struct arc_hardware -{ +struct arc_hardware { __u8 source, /* source ARCnet - filled in automagically */ dest, /* destination ARCnet - 0 for broadcast */ offset[2]; /* offset bytes (some weird semantics) */ @@ -120,8 +115,7 @@ struct arc_hardware * This is an ARCnet frame header, as seen by the kernel (and userspace, * when you do a raw packet capture). */ -struct archdr -{ +struct archdr { /* hardware requirements */ struct arc_hardware hard; diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h index 282eb37e2dec..e80b7f88f7c6 100644 --- a/include/linux/if_arp.h +++ b/include/linux/if_arp.h @@ -133,8 +133,7 @@ struct arpreq_old { * This structure defines an ethernet arp header. */ -struct arphdr -{ +struct arphdr { __be16 ar_hrd; /* format of hardware address */ __be16 ar_pro; /* format of protocol address */ unsigned char ar_hln; /* length of hardware address */ diff --git a/include/linux/if_bonding.h b/include/linux/if_bonding.h index 65c2d247068b..cd525fae3c98 100644 --- a/include/linux/if_bonding.h +++ b/include/linux/if_bonding.h @@ -94,8 +94,7 @@ typedef struct ifbond { __s32 miimon; } ifbond; -typedef struct ifslave -{ +typedef struct ifslave { __s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */ char slave_name[IFNAMSIZ]; __s8 link; diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index 6badb3e2c4e4..938b7e81df95 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -49,8 +49,7 @@ #define BR_STATE_FORWARDING 3 #define BR_STATE_BLOCKING 4 -struct __bridge_info -{ +struct __bridge_info { __u64 designated_root; __u64 bridge_id; __u32 root_path_cost; @@ -72,8 +71,7 @@ struct __bridge_info __u32 gc_timer_value; }; -struct __port_info -{ +struct __port_info { __u64 designated_root; __u64 designated_bridge; __u16 port_id; @@ -89,8 +87,7 @@ struct __port_info __u32 hold_timer_value; }; -struct __fdb_entry -{ +struct __fdb_entry { __u8 mac_addr[6]; __u8 port_no; __u8 is_local; diff --git a/include/linux/if_ec.h b/include/linux/if_ec.h index e7499aa79783..d85f9f48129f 100644 --- a/include/linux/if_ec.h +++ b/include/linux/if_ec.h @@ -5,14 +5,12 @@ /* User visible stuff. Glibc provides its own but libc5 folk will use these */ -struct ec_addr -{ +struct ec_addr { unsigned char station; /* Station number. */ unsigned char net; /* Network number. */ }; -struct sockaddr_ec -{ +struct sockaddr_ec { unsigned short sec_family; unsigned char port; /* Port number. */ unsigned char cb; /* Control/flag byte. */ @@ -37,8 +35,7 @@ struct sockaddr_ec #define EC_HLEN 6 /* This is what an Econet frame looks like on the wire. */ -struct ec_framehdr -{ +struct ec_framehdr { unsigned char dst_stn; unsigned char dst_net; unsigned char src_stn; @@ -62,8 +59,7 @@ static inline struct econet_sock *ec_sk(const struct sock *sk) return (struct econet_sock *)sk; } -struct ec_device -{ +struct ec_device { unsigned char station, net; /* Econet protocol address */ }; diff --git a/include/linux/if_fddi.h b/include/linux/if_fddi.h index 45de1046dbbf..5459c5c09930 100644 --- a/include/linux/if_fddi.h +++ b/include/linux/if_fddi.h @@ -63,36 +63,32 @@ #define FDDI_UI_CMD 0x03 /* Define 802.2 Type 1 header */ -struct fddi_8022_1_hdr - { +struct fddi_8022_1_hdr { __u8 dsap; /* destination service access point */ __u8 ssap; /* source service access point */ __u8 ctrl; /* control byte #1 */ - } __attribute__ ((packed)); +} __attribute__ ((packed)); /* Define 802.2 Type 2 header */ -struct fddi_8022_2_hdr - { +struct fddi_8022_2_hdr { __u8 dsap; /* destination service access point */ __u8 ssap; /* source service access point */ __u8 ctrl_1; /* control byte #1 */ __u8 ctrl_2; /* control byte #2 */ - } __attribute__ ((packed)); +} __attribute__ ((packed)); /* Define 802.2 SNAP header */ #define FDDI_K_OUI_LEN 3 -struct fddi_snap_hdr - { +struct fddi_snap_hdr { __u8 dsap; /* always 0xAA */ __u8 ssap; /* always 0xAA */ __u8 ctrl; /* always 0x03 */ __u8 oui[FDDI_K_OUI_LEN]; /* organizational universal id */ __be16 ethertype; /* packet type ID field */ - } __attribute__ ((packed)); +} __attribute__ ((packed)); /* Define FDDI LLC frame header */ -struct fddihdr - { +struct fddihdr { __u8 fc; /* frame control */ __u8 daddr[FDDI_K_ALEN]; /* destination address */ __u8 saddr[FDDI_K_ALEN]; /* source address */ @@ -102,7 +98,7 @@ struct fddihdr struct fddi_8022_2_hdr llc_8022_2; struct fddi_snap_hdr llc_snap; } hdr; - } __attribute__ ((packed)); +} __attribute__ ((packed)); #ifdef __KERNEL__ #include @@ -197,7 +193,7 @@ struct fddi_statistics { __u32 port_pc_withhold[2]; __u32 port_ler_flag[2]; __u32 port_hardware_present[2]; - }; +}; #endif /* __KERNEL__ */ #endif /* _LINUX_IF_FDDI_H */ diff --git a/include/linux/if_hippi.h b/include/linux/if_hippi.h index 4a7c9940b080..8d038eb8db5c 100644 --- a/include/linux/if_hippi.h +++ b/include/linux/if_hippi.h @@ -51,8 +51,7 @@ * HIPPI statistics collection data. */ -struct hipnet_statistics -{ +struct hipnet_statistics { int rx_packets; /* total packets received */ int tx_packets; /* total packets transmitted */ int rx_errors; /* bad packets received */ @@ -77,8 +76,7 @@ struct hipnet_statistics }; -struct hippi_fp_hdr -{ +struct hippi_fp_hdr { #if 0 __u8 ulp; /* must contain 4 */ #if defined (__BIG_ENDIAN_BITFIELD) @@ -108,8 +106,7 @@ struct hippi_fp_hdr __be32 d2_size; } __attribute__ ((packed)); -struct hippi_le_hdr -{ +struct hippi_le_hdr { #if defined (__BIG_ENDIAN_BITFIELD) __u8 fc:3; __u8 double_wide:1; @@ -139,8 +136,7 @@ struct hippi_le_hdr * Looks like the dsap and ssap fields have been swapped by mistake in * RFC 2067 "IP over HIPPI". */ -struct hippi_snap_hdr -{ +struct hippi_snap_hdr { __u8 dsap; /* always 0xAA */ __u8 ssap; /* always 0xAA */ __u8 ctrl; /* always 0x03 */ @@ -148,8 +144,7 @@ struct hippi_snap_hdr __be16 ethertype; /* packet type ID field */ } __attribute__ ((packed)); -struct hippi_hdr -{ +struct hippi_hdr { struct hippi_fp_hdr fp; struct hippi_le_hdr le; struct hippi_snap_hdr snap; diff --git a/include/linux/if_link.h b/include/linux/if_link.h index 176c5182c515..1d3b2425f661 100644 --- a/include/linux/if_link.h +++ b/include/linux/if_link.h @@ -5,8 +5,7 @@ #include /* The struct should be in sync with struct net_device_stats */ -struct rtnl_link_stats -{ +struct rtnl_link_stats { __u32 rx_packets; /* total packets received */ __u32 tx_packets; /* total packets transmitted */ __u32 rx_bytes; /* total bytes received */ @@ -39,8 +38,7 @@ struct rtnl_link_stats }; /* The struct should be in sync with struct ifmap */ -struct rtnl_link_ifmap -{ +struct rtnl_link_ifmap { __u64 mem_start; __u64 mem_end; __u64 base_addr; @@ -49,8 +47,7 @@ struct rtnl_link_ifmap __u8 port; }; -enum -{ +enum { IFLA_UNSPEC, IFLA_ADDRESS, IFLA_BROADCAST, @@ -123,8 +120,7 @@ enum */ /* Subtype attributes for IFLA_PROTINFO */ -enum -{ +enum { IFLA_INET6_UNSPEC, IFLA_INET6_FLAGS, /* link flags */ IFLA_INET6_CONF, /* sysctl parameters */ @@ -137,16 +133,14 @@ enum #define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1) -struct ifla_cacheinfo -{ +struct ifla_cacheinfo { __u32 max_reasm_len; __u32 tstamp; /* ipv6InterfaceTable updated timestamp */ __u32 reachable_time; __u32 retrans_time; }; -enum -{ +enum { IFLA_INFO_UNSPEC, IFLA_INFO_KIND, IFLA_INFO_DATA, @@ -158,8 +152,7 @@ enum /* VLAN section */ -enum -{ +enum { IFLA_VLAN_UNSPEC, IFLA_VLAN_ID, IFLA_VLAN_FLAGS, @@ -175,8 +168,7 @@ struct ifla_vlan_flags { __u32 mask; }; -enum -{ +enum { IFLA_VLAN_QOS_UNSPEC, IFLA_VLAN_QOS_MAPPING, __IFLA_VLAN_QOS_MAX @@ -184,8 +176,7 @@ enum #define IFLA_VLAN_QOS_MAX (__IFLA_VLAN_QOS_MAX - 1) -struct ifla_vlan_qos_mapping -{ +struct ifla_vlan_qos_mapping { __u32 from; __u32 to; }; diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h index dea7d6b7cf98..4021d47cc437 100644 --- a/include/linux/if_packet.h +++ b/include/linux/if_packet.h @@ -3,15 +3,13 @@ #include -struct sockaddr_pkt -{ +struct sockaddr_pkt { unsigned short spkt_family; unsigned char spkt_device[14]; __be16 spkt_protocol; }; -struct sockaddr_ll -{ +struct sockaddr_ll { unsigned short sll_family; __be16 sll_protocol; int sll_ifindex; @@ -49,14 +47,12 @@ struct sockaddr_ll #define PACKET_TX_RING 13 #define PACKET_LOSS 14 -struct tpacket_stats -{ +struct tpacket_stats { unsigned int tp_packets; unsigned int tp_drops; }; -struct tpacket_auxdata -{ +struct tpacket_auxdata { __u32 tp_status; __u32 tp_len; __u32 tp_snaplen; @@ -78,8 +74,7 @@ struct tpacket_auxdata #define TP_STATUS_SENDING 0x2 #define TP_STATUS_WRONG_FORMAT 0x4 -struct tpacket_hdr -{ +struct tpacket_hdr { unsigned long tp_status; unsigned int tp_len; unsigned int tp_snaplen; @@ -93,8 +88,7 @@ struct tpacket_hdr #define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1)) #define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll)) -struct tpacket2_hdr -{ +struct tpacket2_hdr { __u32 tp_status; __u32 tp_len; __u32 tp_snaplen; @@ -107,8 +101,7 @@ struct tpacket2_hdr #define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll)) -enum tpacket_versions -{ +enum tpacket_versions { TPACKET_V1, TPACKET_V2, }; @@ -126,16 +119,14 @@ enum tpacket_versions - Pad to align to TPACKET_ALIGNMENT=16 */ -struct tpacket_req -{ +struct tpacket_req { unsigned int tp_block_size; /* Minimal size of contiguous block */ unsigned int tp_block_nr; /* Number of blocks */ unsigned int tp_frame_size; /* Size of frame */ unsigned int tp_frame_nr; /* Total number of frames */ }; -struct packet_mreq -{ +struct packet_mreq { int mr_ifindex; unsigned short mr_type; unsigned short mr_alen; diff --git a/include/linux/if_plip.h b/include/linux/if_plip.h index 153a649915a2..6298c7e88b2b 100644 --- a/include/linux/if_plip.h +++ b/include/linux/if_plip.h @@ -15,8 +15,7 @@ #define SIOCDEVPLIP SIOCDEVPRIVATE -struct plipconf -{ +struct plipconf { unsigned short pcmd; unsigned long nibble; unsigned long trigger; diff --git a/include/linux/if_pppol2tp.h b/include/linux/if_pppol2tp.h index 3a14b088c8ec..c58baea4a25b 100644 --- a/include/linux/if_pppol2tp.h +++ b/include/linux/if_pppol2tp.h @@ -24,8 +24,7 @@ /* Structure used to connect() the socket to a particular tunnel UDP * socket. */ -struct pppol2tp_addr -{ +struct pppol2tp_addr { __kernel_pid_t pid; /* pid that owns the fd. * 0 => current */ int fd; /* FD of UDP socket to use */ diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h index 8d76cb4c86fa..1822d635be6b 100644 --- a/include/linux/if_tunnel.h +++ b/include/linux/if_tunnel.h @@ -30,8 +30,7 @@ #define GRE_FLAGS __cpu_to_be16(0x00F8) #define GRE_VERSION __cpu_to_be16(0x0007) -struct ip_tunnel_parm -{ +struct ip_tunnel_parm { char name[IFNAMSIZ]; int link; __be16 i_flags; @@ -63,8 +62,7 @@ struct ip_tunnel_6rd { __u16 relay_prefixlen; }; -enum -{ +enum { IFLA_GRE_UNSPEC, IFLA_GRE_LINK, IFLA_GRE_IFLAGS, diff --git a/include/linux/igmp.h b/include/linux/igmp.h index fe158e0e20e6..724c27e5d173 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -27,8 +27,7 @@ * Header in on cable format */ -struct igmphdr -{ +struct igmphdr { __u8 type; __u8 code; /* For newer IGMP */ __sum16 csum; @@ -151,8 +150,7 @@ static inline struct igmpv3_query * extern int sysctl_igmp_max_memberships; extern int sysctl_igmp_max_msf; -struct ip_sf_socklist -{ +struct ip_sf_socklist { unsigned int sl_max; unsigned int sl_count; __be32 sl_addr[0]; @@ -167,16 +165,14 @@ struct ip_sf_socklist this list never used in fast path code */ -struct ip_mc_socklist -{ +struct ip_mc_socklist { struct ip_mc_socklist *next; struct ip_mreqn multi; unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ struct ip_sf_socklist *sflist; }; -struct ip_sf_list -{ +struct ip_sf_list { struct ip_sf_list *sf_next; __be32 sf_inaddr; unsigned long sf_count[2]; /* include/exclude counts */ @@ -185,8 +181,7 @@ struct ip_sf_list unsigned char sf_crcount; /* retrans. left to send */ }; -struct ip_mc_list -{ +struct ip_mc_list { struct in_device *interface; __be32 multiaddr; struct ip_sf_list *sources; diff --git a/include/linux/in.h b/include/linux/in.h index cf196da04ec9..b615649db129 100644 --- a/include/linux/in.h +++ b/include/linux/in.h @@ -118,14 +118,12 @@ struct in_addr { /* Request struct for multicast socket ops */ -struct ip_mreq -{ +struct ip_mreq { struct in_addr imr_multiaddr; /* IP multicast address of group */ struct in_addr imr_interface; /* local IP address of interface */ }; -struct ip_mreqn -{ +struct ip_mreqn { struct in_addr imr_multiaddr; /* IP multicast address of group */ struct in_addr imr_address; /* local IP address of interface */ int imr_ifindex; /* Interface index */ @@ -149,21 +147,18 @@ struct ip_msfilter { (sizeof(struct ip_msfilter) - sizeof(__u32) \ + (numsrc) * sizeof(__u32)) -struct group_req -{ +struct group_req { __u32 gr_interface; /* interface index */ struct __kernel_sockaddr_storage gr_group; /* group address */ }; -struct group_source_req -{ +struct group_source_req { __u32 gsr_interface; /* interface index */ struct __kernel_sockaddr_storage gsr_group; /* group address */ struct __kernel_sockaddr_storage gsr_source; /* source address */ }; -struct group_filter -{ +struct group_filter { __u32 gf_interface; /* interface index */ struct __kernel_sockaddr_storage gf_group; /* multicast address */ __u32 gf_fmode; /* filter mode */ @@ -175,8 +170,7 @@ struct group_filter (sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \ + (numsrc) * sizeof(struct __kernel_sockaddr_storage)) -struct in_pktinfo -{ +struct in_pktinfo { int ipi_ifindex; struct in_addr ipi_spec_dst; struct in_addr ipi_addr; diff --git a/include/linux/in6.h b/include/linux/in6.h index 718bf21c5754..dfa29168e6ab 100644 --- a/include/linux/in6.h +++ b/include/linux/in6.h @@ -27,10 +27,8 @@ * IPv6 address structure */ -struct in6_addr -{ - union - { +struct in6_addr { + union { __u8 u6_addr8[16]; __be16 u6_addr16[8]; __be32 u6_addr32[4]; @@ -75,8 +73,7 @@ struct ipv6_mreq { #define ipv6mr_acaddr ipv6mr_multiaddr -struct in6_flowlabel_req -{ +struct in6_flowlabel_req { struct in6_addr flr_dst; __be32 flr_label; __u8 flr_action; diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index ad27c7da8798..eecfa559bfb4 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -10,15 +10,13 @@ #include #include -struct ipv4_devconf -{ +struct ipv4_devconf { void *sysctl; int data[__NET_IPV4_CONF_MAX - 1]; DECLARE_BITMAP(state, __NET_IPV4_CONF_MAX - 1); }; -struct in_device -{ +struct in_device { struct net_device *dev; atomic_t refcnt; int dead; @@ -110,8 +108,7 @@ static inline void ipv4_devconf_setall(struct in_device *in_dev) #define IN_DEV_ARP_IGNORE(in_dev) IN_DEV_MAXCONF((in_dev), ARP_IGNORE) #define IN_DEV_ARP_NOTIFY(in_dev) IN_DEV_MAXCONF((in_dev), ARP_NOTIFY) -struct in_ifaddr -{ +struct in_ifaddr { struct in_ifaddr *ifa_next; struct in_device *ifa_dev; struct rcu_head rcu_head; diff --git a/include/linux/ip_vs.h b/include/linux/ip_vs.h index 148265e63e8d..dfc170362842 100644 --- a/include/linux/ip_vs.h +++ b/include/linux/ip_vs.h @@ -127,8 +127,7 @@ struct ip_vs_dest_user { /* * IPVS statistics object (for user space) */ -struct ip_vs_stats_user -{ +struct ip_vs_stats_user { __u32 conns; /* connections scheduled */ __u32 inpkts; /* incoming packets */ __u32 outpkts; /* outgoing packets */ diff --git a/include/linux/mroute.h b/include/linux/mroute.h index d5f69151f692..c5f3d53548e2 100644 --- a/include/linux/mroute.h +++ b/include/linux/mroute.h @@ -76,8 +76,7 @@ struct vifctl { * Cache manipulation structures for mrouted and PIMd */ -struct mfcctl -{ +struct mfcctl { struct in_addr mfcc_origin; /* Origin of mcast */ struct in_addr mfcc_mcastgrp; /* Group in question */ vifi_t mfcc_parent; /* Where it arrived */ @@ -92,8 +91,7 @@ struct mfcctl * Group count retrieval for mrouted */ -struct sioc_sg_req -{ +struct sioc_sg_req { struct in_addr src; struct in_addr grp; unsigned long pktcnt; @@ -105,8 +103,7 @@ struct sioc_sg_req * To get vif packet counts */ -struct sioc_vif_req -{ +struct sioc_vif_req { vifi_t vifi; /* Which iface */ unsigned long icount; /* In packets */ unsigned long ocount; /* Out packets */ @@ -119,8 +116,7 @@ struct sioc_vif_req * data. Magically happens to be like an IP packet as per the original */ -struct igmpmsg -{ +struct igmpmsg { __u32 unused1,unused2; unsigned char im_msgtype; /* What is this */ unsigned char im_mbz; /* Must be zero */ @@ -181,8 +177,7 @@ static inline int ip_mr_init(void) } #endif -struct vif_device -{ +struct vif_device { struct net_device *dev; /* Device we are using */ unsigned long bytes_in,bytes_out; unsigned long pkt_in,pkt_out; /* Statistics */ @@ -195,8 +190,7 @@ struct vif_device #define VIFF_STATIC 0x8000 -struct mfc_cache -{ +struct mfc_cache { struct mfc_cache *next; /* Next entry on cache line */ #ifdef CONFIG_NET_NS struct net *mfc_net; diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h index b191865a6ca3..2caa1a8e525d 100644 --- a/include/linux/mroute6.h +++ b/include/linux/mroute6.h @@ -75,8 +75,7 @@ struct mif6ctl { * Cache manipulation structures for mrouted and PIMd */ -struct mf6cctl -{ +struct mf6cctl { struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ mifi_t mf6cc_parent; /* Where it arrived */ @@ -87,8 +86,7 @@ struct mf6cctl * Group count retrieval for pim6sd */ -struct sioc_sg_req6 -{ +struct sioc_sg_req6 { struct sockaddr_in6 src; struct sockaddr_in6 grp; unsigned long pktcnt; @@ -100,8 +98,7 @@ struct sioc_sg_req6 * To get vif packet counts */ -struct sioc_mif_req6 -{ +struct sioc_mif_req6 { mifi_t mifi; /* Which iface */ unsigned long icount; /* In packets */ unsigned long ocount; /* Out packets */ @@ -172,8 +169,7 @@ static inline void ip6_mr_cleanup(void) } #endif -struct mif_device -{ +struct mif_device { struct net_device *dev; /* Device we are using */ unsigned long bytes_in,bytes_out; unsigned long pkt_in,pkt_out; /* Statistics */ @@ -185,8 +181,7 @@ struct mif_device #define VIFF_STATIC 0x8000 -struct mfc6_cache -{ +struct mfc6_cache { struct mfc6_cache *next; /* Next entry on cache line */ #ifdef CONFIG_NET_NS struct net *mfc6_net; diff --git a/include/linux/neighbour.h b/include/linux/neighbour.h index 12c9de138451..a7003b7a695d 100644 --- a/include/linux/neighbour.h +++ b/include/linux/neighbour.h @@ -4,8 +4,7 @@ #include #include -struct ndmsg -{ +struct ndmsg { __u8 ndm_family; __u8 ndm_pad1; __u16 ndm_pad2; @@ -15,8 +14,7 @@ struct ndmsg __u8 ndm_type; }; -enum -{ +enum { NDA_UNSPEC, NDA_DST, NDA_LLADDR, @@ -56,8 +54,7 @@ enum NUD_PERMANENT is also cannot be deleted by garbage collectors. */ -struct nda_cacheinfo -{ +struct nda_cacheinfo { __u32 ndm_confirmed; __u32 ndm_used; __u32 ndm_updated; @@ -89,8 +86,7 @@ struct nda_cacheinfo * device. ****/ -struct ndt_stats -{ +struct ndt_stats { __u64 ndts_allocs; __u64 ndts_destroys; __u64 ndts_hash_grows; @@ -124,15 +120,13 @@ enum { }; #define NDTPA_MAX (__NDTPA_MAX - 1) -struct ndtmsg -{ +struct ndtmsg { __u8 ndtm_family; __u8 ndtm_pad1; __u16 ndtm_pad2; }; -struct ndt_config -{ +struct ndt_config { __u16 ndtc_key_len; __u16 ndtc_entry_size; __u32 ndtc_entries; diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 5077de028317..465add6c43e3 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -125,8 +125,7 @@ typedef enum netdev_tx netdev_tx_t; * with byte counters. */ -struct net_device_stats -{ +struct net_device_stats { unsigned long rx_packets; /* total packets received */ unsigned long tx_packets; /* total packets transmitted */ unsigned long rx_bytes; /* total bytes received */ @@ -179,8 +178,7 @@ struct neighbour; struct neigh_parms; struct sk_buff; -struct netif_rx_stats -{ +struct netif_rx_stats { unsigned total; unsigned dropped; unsigned time_squeeze; @@ -189,8 +187,7 @@ struct netif_rx_stats DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat); -struct dev_addr_list -{ +struct dev_addr_list { struct dev_addr_list *next; u8 da_addr[MAX_ADDR_LEN]; u8 da_addrlen; @@ -227,8 +224,7 @@ struct netdev_hw_addr_list { int count; }; -struct hh_cache -{ +struct hh_cache { struct hh_cache *hh_next; /* Next entry */ atomic_t hh_refcnt; /* number of users */ /* @@ -291,8 +287,7 @@ struct header_ops { * code. */ -enum netdev_state_t -{ +enum netdev_state_t { __LINK_STATE_START, __LINK_STATE_PRESENT, __LINK_STATE_NOCARRIER, @@ -341,8 +336,7 @@ struct napi_struct { struct sk_buff *skb; }; -enum -{ +enum { NAPI_STATE_SCHED, /* Poll is scheduled */ NAPI_STATE_DISABLE, /* Disable pending */ NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ @@ -458,8 +452,7 @@ static inline void napi_synchronize(const struct napi_struct *n) # define napi_synchronize(n) barrier() #endif -enum netdev_queue_state_t -{ +enum netdev_queue_state_t { __QUEUE_STATE_XOFF, __QUEUE_STATE_FROZEN, }; @@ -653,8 +646,7 @@ struct net_device_ops { * moves out. */ -struct net_device -{ +struct net_device { /* * This is the first field of the "visible" part of this structure @@ -1229,8 +1221,7 @@ static inline int unregister_gifconf(unsigned int family) * Incoming packets are placed on per-cpu queues so that * no locking is needed. */ -struct softnet_data -{ +struct softnet_data { struct Qdisc *output_queue; struct sk_buff_head input_pkt_queue; struct list_head poll_list; @@ -1627,7 +1618,8 @@ static inline int netif_dormant(const struct net_device *dev) * * Check if carrier is operational */ -static inline int netif_oper_up(const struct net_device *dev) { +static inline int netif_oper_up(const struct net_device *dev) +{ return (dev->operstate == IF_OPER_UP || dev->operstate == IF_OPER_UNKNOWN /* backward compat */); } diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 6132b5e6d9d3..48c54960773c 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -93,8 +93,7 @@ typedef unsigned int nf_hookfn(unsigned int hooknum, const struct net_device *out, int (*okfn)(struct sk_buff *)); -struct nf_hook_ops -{ +struct nf_hook_ops { struct list_head list; /* User fills in from here down. */ @@ -106,8 +105,7 @@ struct nf_hook_ops int priority; }; -struct nf_sockopt_ops -{ +struct nf_sockopt_ops { struct list_head list; u_int8_t pf; diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h index a8248ee422b7..a374787ed9b0 100644 --- a/include/linux/netfilter/nf_conntrack_common.h +++ b/include/linux/netfilter/nf_conntrack_common.h @@ -3,8 +3,7 @@ /* Connection state tracking for netfilter. This is separated from, but required by, the NAT layer; it can also be used by an iptables extension. */ -enum ip_conntrack_info -{ +enum ip_conntrack_info { /* Part of an established connection (either direction). */ IP_CT_ESTABLISHED, @@ -76,8 +75,7 @@ enum ip_conntrack_status { }; #ifdef __KERNEL__ -struct ip_conntrack_stat -{ +struct ip_conntrack_stat { unsigned int searched; unsigned int found; unsigned int new; diff --git a/include/linux/netfilter/nf_conntrack_ftp.h b/include/linux/netfilter/nf_conntrack_ftp.h index 47727d7546ea..3e3aa08980c3 100644 --- a/include/linux/netfilter/nf_conntrack_ftp.h +++ b/include/linux/netfilter/nf_conntrack_ftp.h @@ -3,8 +3,7 @@ /* FTP tracking. */ /* This enum is exposed to userspace */ -enum nf_ct_ftp_type -{ +enum nf_ct_ftp_type { /* PORT command from client */ NF_CT_FTP_PORT, /* PASV response from server */ diff --git a/include/linux/netfilter/nf_conntrack_sctp.h b/include/linux/netfilter/nf_conntrack_sctp.h index 768f78c4ac53..ceeefe6681b5 100644 --- a/include/linux/netfilter/nf_conntrack_sctp.h +++ b/include/linux/netfilter/nf_conntrack_sctp.h @@ -16,8 +16,7 @@ enum sctp_conntrack { SCTP_CONNTRACK_MAX }; -struct ip_ct_sctp -{ +struct ip_ct_sctp { enum sctp_conntrack state; __be32 vtag[IP_CT_DIR_MAX]; diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h index 4352feed2377..f6d97f64d7a0 100644 --- a/include/linux/netfilter/nf_conntrack_tcp.h +++ b/include/linux/netfilter/nf_conntrack_tcp.h @@ -55,8 +55,7 @@ struct ip_ct_tcp_state { u_int8_t flags; /* per direction options */ }; -struct ip_ct_tcp -{ +struct ip_ct_tcp { struct ip_ct_tcp_state seen[2]; /* connection parameters per direction */ u_int8_t state; /* state of the connection (enum tcp_conntrack) */ /* For detecting stale connections */ diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h index 9f00da287f2c..49d321f3ccd2 100644 --- a/include/linux/netfilter/nfnetlink.h +++ b/include/linux/netfilter/nfnetlink.h @@ -55,8 +55,7 @@ struct nfgenmsg { #include #include -struct nfnl_callback -{ +struct nfnl_callback { int (*call)(struct sock *nl, struct sk_buff *skb, const struct nlmsghdr *nlh, const struct nlattr * const cda[]); @@ -64,8 +63,7 @@ struct nfnl_callback const u_int16_t attr_count; /* number of nlattr's */ }; -struct nfnetlink_subsystem -{ +struct nfnetlink_subsystem { const char *name; __u8 subsys_id; /* nfnetlink subsystem ID */ __u8 cb_count; /* number of callbacks */ diff --git a/include/linux/netfilter/nfnetlink_compat.h b/include/linux/netfilter/nfnetlink_compat.h index eda55cabceec..ffb95036bbd4 100644 --- a/include/linux/netfilter/nfnetlink_compat.h +++ b/include/linux/netfilter/nfnetlink_compat.h @@ -21,8 +21,7 @@ * ! nfnetlink use the same attributes methods. - J. Schulist. */ -struct nfattr -{ +struct nfattr { __u16 nfa_len; __u16 nfa_type; /* we use 15 bits for the type, and the highest * bit to indicate whether the payload is nested */ diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h index 812cb153cabb..378f27ae7772 100644 --- a/include/linux/netfilter/x_tables.h +++ b/include/linux/netfilter/x_tables.h @@ -6,8 +6,7 @@ #define XT_FUNCTION_MAXNAMELEN 30 #define XT_TABLE_MAXNAMELEN 32 -struct xt_entry_match -{ +struct xt_entry_match { union { struct { __u16 match_size; @@ -31,8 +30,7 @@ struct xt_entry_match unsigned char data[0]; }; -struct xt_entry_target -{ +struct xt_entry_target { union { struct { __u16 target_size; @@ -64,16 +62,14 @@ struct xt_entry_target }, \ } -struct xt_standard_target -{ +struct xt_standard_target { struct xt_entry_target target; int verdict; }; /* The argument to IPT_SO_GET_REVISION_*. Returns highest revision * kernel supports, if >= revision. */ -struct xt_get_revision -{ +struct xt_get_revision { char name[XT_FUNCTION_MAXNAMELEN-1]; __u8 revision; @@ -90,8 +86,7 @@ struct xt_get_revision * ip6t_entry and arpt_entry. This sucks, and it is a hack. It will be my * personal pleasure to remove it -HW */ -struct _xt_align -{ +struct _xt_align { __u8 u8; __u16 u16; __u32 u32; @@ -109,14 +104,12 @@ struct _xt_align #define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0) #define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0) -struct xt_counters -{ +struct xt_counters { __u64 pcnt, bcnt; /* Packet and byte counters */ }; /* The argument to IPT_SO_ADD_COUNTERS. */ -struct xt_counters_info -{ +struct xt_counters_info { /* Which table. */ char name[XT_TABLE_MAXNAMELEN]; @@ -269,8 +262,7 @@ struct xt_tgdtor_param { u_int8_t family; }; -struct xt_match -{ +struct xt_match { struct list_head list; const char name[XT_FUNCTION_MAXNAMELEN-1]; @@ -310,8 +302,7 @@ struct xt_match }; /* Registration hooks for targets. */ -struct xt_target -{ +struct xt_target { struct list_head list; const char name[XT_FUNCTION_MAXNAMELEN-1]; @@ -349,8 +340,7 @@ struct xt_target }; /* Furniture shopping... */ -struct xt_table -{ +struct xt_table { struct list_head list; /* What hooks you will enter on */ @@ -371,8 +361,7 @@ struct xt_table #include /* The table itself */ -struct xt_table_info -{ +struct xt_table_info { /* Size per table */ unsigned int size; /* Number of entries: FIXME. --RR */ @@ -528,8 +517,7 @@ static inline unsigned long ifname_compare_aligned(const char *_a, #ifdef CONFIG_COMPAT #include -struct compat_xt_entry_match -{ +struct compat_xt_entry_match { union { struct { u_int16_t match_size; @@ -545,8 +533,7 @@ struct compat_xt_entry_match unsigned char data[0]; }; -struct compat_xt_entry_target -{ +struct compat_xt_entry_target { union { struct { u_int16_t target_size; @@ -566,8 +553,7 @@ struct compat_xt_entry_target * need to change whole approach in order to calculate align as function of * current task alignment */ -struct compat_xt_counters -{ +struct compat_xt_counters { #if defined(CONFIG_X86_64) || defined(CONFIG_IA64) u_int32_t cnt[4]; #else @@ -575,8 +561,7 @@ struct compat_xt_counters #endif }; -struct compat_xt_counters_info -{ +struct compat_xt_counters_info { char name[XT_TABLE_MAXNAMELEN]; compat_uint_t num_counters; struct compat_xt_counters counters[0]; diff --git a/include/linux/netfilter/xt_connbytes.h b/include/linux/netfilter/xt_connbytes.h index 52bd6153b996..92fcbb0d193e 100644 --- a/include/linux/netfilter/xt_connbytes.h +++ b/include/linux/netfilter/xt_connbytes.h @@ -15,8 +15,7 @@ enum xt_connbytes_direction { XT_CONNBYTES_DIR_BOTH, }; -struct xt_connbytes_info -{ +struct xt_connbytes_info { struct { aligned_u64 from; /* count to be matched */ aligned_u64 to; /* count to be matched */ diff --git a/include/linux/netfilter/xt_esp.h b/include/linux/netfilter/xt_esp.h index ef6fa4747d0a..ee6882408000 100644 --- a/include/linux/netfilter/xt_esp.h +++ b/include/linux/netfilter/xt_esp.h @@ -3,8 +3,7 @@ #include -struct xt_esp -{ +struct xt_esp { __u32 spis[2]; /* Security Parameter Index */ __u8 invflags; /* Inverse flags */ }; diff --git a/include/linux/netfilter/xt_multiport.h b/include/linux/netfilter/xt_multiport.h index 185db499fcbc..5b7e72dfffc5 100644 --- a/include/linux/netfilter/xt_multiport.h +++ b/include/linux/netfilter/xt_multiport.h @@ -3,8 +3,7 @@ #include -enum xt_multiport_flags -{ +enum xt_multiport_flags { XT_MULTIPORT_SOURCE, XT_MULTIPORT_DESTINATION, XT_MULTIPORT_EITHER @@ -13,15 +12,13 @@ enum xt_multiport_flags #define XT_MULTI_PORTS 15 /* Must fit inside union xt_matchinfo: 16 bytes */ -struct xt_multiport -{ +struct xt_multiport { __u8 flags; /* Type of comparison */ __u8 count; /* Number of ports */ __u16 ports[XT_MULTI_PORTS]; /* Ports */ }; -struct xt_multiport_v1 -{ +struct xt_multiport_v1 { __u8 flags; /* Type of comparison */ __u8 count; /* Number of ports */ __u16 ports[XT_MULTI_PORTS]; /* Ports */ diff --git a/include/linux/netfilter/xt_policy.h b/include/linux/netfilter/xt_policy.h index 7bb64e7c853d..be8ead05c316 100644 --- a/include/linux/netfilter/xt_policy.h +++ b/include/linux/netfilter/xt_policy.h @@ -5,22 +5,19 @@ #define XT_POLICY_MAX_ELEM 4 -enum xt_policy_flags -{ +enum xt_policy_flags { XT_POLICY_MATCH_IN = 0x1, XT_POLICY_MATCH_OUT = 0x2, XT_POLICY_MATCH_NONE = 0x4, XT_POLICY_MATCH_STRICT = 0x8, }; -enum xt_policy_modes -{ +enum xt_policy_modes { XT_POLICY_MODE_TRANSPORT, XT_POLICY_MODE_TUNNEL }; -struct xt_policy_spec -{ +struct xt_policy_spec { __u8 saddr:1, daddr:1, proto:1, @@ -30,15 +27,13 @@ struct xt_policy_spec }; #ifndef __KERNEL__ -union xt_policy_addr -{ +union xt_policy_addr { struct in_addr a4; struct in6_addr a6; }; #endif -struct xt_policy_elem -{ +struct xt_policy_elem { union { #ifdef __KERNEL__ struct { @@ -65,8 +60,7 @@ struct xt_policy_elem struct xt_policy_spec invert; }; -struct xt_policy_info -{ +struct xt_policy_info { struct xt_policy_elem pol[XT_POLICY_MAX_ELEM]; __u16 flags; __u16 len; diff --git a/include/linux/netfilter/xt_state.h b/include/linux/netfilter/xt_state.h index c06f32edee07..7b32de886613 100644 --- a/include/linux/netfilter/xt_state.h +++ b/include/linux/netfilter/xt_state.h @@ -6,8 +6,7 @@ #define XT_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 1)) -struct xt_state_info -{ +struct xt_state_info { unsigned int statemask; }; #endif /*_XT_STATE_H*/ diff --git a/include/linux/netfilter/xt_string.h b/include/linux/netfilter/xt_string.h index ecbb95fc89ed..235347c02eab 100644 --- a/include/linux/netfilter/xt_string.h +++ b/include/linux/netfilter/xt_string.h @@ -11,8 +11,7 @@ enum { XT_STRING_FLAG_IGNORECASE = 0x02 }; -struct xt_string_info -{ +struct xt_string_info { __u16 from_offset; __u16 to_offset; char algo[XT_STRING_MAX_ALGO_NAME_SIZE]; diff --git a/include/linux/netfilter/xt_tcpudp.h b/include/linux/netfilter/xt_tcpudp.h index a490a0bc1d29..38aa7b399021 100644 --- a/include/linux/netfilter/xt_tcpudp.h +++ b/include/linux/netfilter/xt_tcpudp.h @@ -4,8 +4,7 @@ #include /* TCP matching stuff */ -struct xt_tcp -{ +struct xt_tcp { __u16 spts[2]; /* Source port range. */ __u16 dpts[2]; /* Destination port range. */ __u8 option; /* TCP Option iff non-zero*/ @@ -22,8 +21,7 @@ struct xt_tcp #define XT_TCP_INV_MASK 0x0F /* All possible flags. */ /* UDP matching stuff */ -struct xt_udp -{ +struct xt_udp { __u16 spts[2]; /* Source port range. */ __u16 dpts[2]; /* Destination port range. */ __u8 invflags; /* Inverse flags */ diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h index 6fe3e6aa10db..f2336523a9df 100644 --- a/include/linux/netfilter_arp/arp_tables.h +++ b/include/linux/netfilter_arp/arp_tables.h @@ -132,8 +132,7 @@ struct arpt_entry #define ARPT_RETURN XT_RETURN /* The argument to ARPT_SO_GET_INFO */ -struct arpt_getinfo -{ +struct arpt_getinfo { /* Which table: caller fills this in. */ char name[ARPT_TABLE_MAXNAMELEN]; @@ -155,8 +154,7 @@ struct arpt_getinfo }; /* The argument to ARPT_SO_SET_REPLACE. */ -struct arpt_replace -{ +struct arpt_replace { /* Which table. */ char name[ARPT_TABLE_MAXNAMELEN]; @@ -191,8 +189,7 @@ struct arpt_replace #define arpt_counters xt_counters /* The argument to ARPT_SO_GET_ENTRIES. */ -struct arpt_get_entries -{ +struct arpt_get_entries { /* Which table: user fills this in. */ char name[ARPT_TABLE_MAXNAMELEN]; @@ -224,20 +221,17 @@ static __inline__ struct arpt_entry_target *arpt_get_target(struct arpt_entry *e #ifdef __KERNEL__ /* Standard entry. */ -struct arpt_standard -{ +struct arpt_standard { struct arpt_entry entry; struct arpt_standard_target target; }; -struct arpt_error_target -{ +struct arpt_error_target { struct arpt_entry_target target; char errorname[ARPT_FUNCTION_MAXNAMELEN]; }; -struct arpt_error -{ +struct arpt_error { struct arpt_entry entry; struct arpt_error_target target; }; @@ -279,8 +273,7 @@ extern unsigned int arpt_do_table(struct sk_buff *skb, #ifdef CONFIG_COMPAT #include -struct compat_arpt_entry -{ +struct compat_arpt_entry { struct arpt_arp arp; u_int16_t target_offset; u_int16_t next_offset; diff --git a/include/linux/netfilter_bridge/ebt_802_3.h b/include/linux/netfilter_bridge/ebt_802_3.h index a11b0c2017fd..c73ef0b18bdc 100644 --- a/include/linux/netfilter_bridge/ebt_802_3.h +++ b/include/linux/netfilter_bridge/ebt_802_3.h @@ -58,8 +58,7 @@ static inline struct ebt_802_3_hdr *ebt_802_3_hdr(const struct sk_buff *skb) } #endif -struct ebt_802_3_info -{ +struct ebt_802_3_info { uint8_t sap; __be16 type; uint8_t bitmask; diff --git a/include/linux/netfilter_bridge/ebt_among.h b/include/linux/netfilter_bridge/ebt_among.h index 7654069233ca..0009558609a7 100644 --- a/include/linux/netfilter_bridge/ebt_among.h +++ b/include/linux/netfilter_bridge/ebt_among.h @@ -29,14 +29,12 @@ * Yes, it is a memory overhead, but in 2003 AD, who cares? */ -struct ebt_mac_wormhash_tuple -{ +struct ebt_mac_wormhash_tuple { uint32_t cmp[2]; __be32 ip; }; -struct ebt_mac_wormhash -{ +struct ebt_mac_wormhash { int table[257]; int poolsize; struct ebt_mac_wormhash_tuple pool[0]; @@ -45,8 +43,7 @@ struct ebt_mac_wormhash #define ebt_mac_wormhash_size(x) ((x) ? sizeof(struct ebt_mac_wormhash) \ + (x)->poolsize * sizeof(struct ebt_mac_wormhash_tuple) : 0) -struct ebt_among_info -{ +struct ebt_among_info { int wh_dst_ofs; int wh_src_ofs; int bitmask; diff --git a/include/linux/netfilter_bridge/ebt_arpreply.h b/include/linux/netfilter_bridge/ebt_arpreply.h index 96a8339960e0..7e77896e1fbf 100644 --- a/include/linux/netfilter_bridge/ebt_arpreply.h +++ b/include/linux/netfilter_bridge/ebt_arpreply.h @@ -1,8 +1,7 @@ #ifndef __LINUX_BRIDGE_EBT_ARPREPLY_H #define __LINUX_BRIDGE_EBT_ARPREPLY_H -struct ebt_arpreply_info -{ +struct ebt_arpreply_info { unsigned char mac[ETH_ALEN]; int target; }; diff --git a/include/linux/netfilter_bridge/ebt_ip.h b/include/linux/netfilter_bridge/ebt_ip.h index d6847475bf2e..6a708fb92241 100644 --- a/include/linux/netfilter_bridge/ebt_ip.h +++ b/include/linux/netfilter_bridge/ebt_ip.h @@ -26,8 +26,7 @@ #define EBT_IP_MATCH "ip" /* the same values are used for the invflags */ -struct ebt_ip_info -{ +struct ebt_ip_info { __be32 saddr; __be32 daddr; __be32 smsk; diff --git a/include/linux/netfilter_bridge/ebt_ip6.h b/include/linux/netfilter_bridge/ebt_ip6.h index 2273c3ae33ca..e5de98701519 100644 --- a/include/linux/netfilter_bridge/ebt_ip6.h +++ b/include/linux/netfilter_bridge/ebt_ip6.h @@ -23,8 +23,7 @@ #define EBT_IP6_MATCH "ip6" /* the same values are used for the invflags */ -struct ebt_ip6_info -{ +struct ebt_ip6_info { struct in6_addr saddr; struct in6_addr daddr; struct in6_addr smsk; diff --git a/include/linux/netfilter_bridge/ebt_limit.h b/include/linux/netfilter_bridge/ebt_limit.h index d8b65000afe4..4bf76b751676 100644 --- a/include/linux/netfilter_bridge/ebt_limit.h +++ b/include/linux/netfilter_bridge/ebt_limit.h @@ -9,8 +9,7 @@ /* 1/10,000 sec period => max of 10,000/sec. Min rate is then 429490 seconds, or one every 59 hours. */ -struct ebt_limit_info -{ +struct ebt_limit_info { u_int32_t avg; /* Average secs between packets * scale */ u_int32_t burst; /* Period multiplier for upper limit. */ diff --git a/include/linux/netfilter_bridge/ebt_log.h b/include/linux/netfilter_bridge/ebt_log.h index b76e653157e5..cc2cdfb764bc 100644 --- a/include/linux/netfilter_bridge/ebt_log.h +++ b/include/linux/netfilter_bridge/ebt_log.h @@ -9,8 +9,7 @@ #define EBT_LOG_PREFIX_SIZE 30 #define EBT_LOG_WATCHER "log" -struct ebt_log_info -{ +struct ebt_log_info { uint8_t loglevel; uint8_t prefix[EBT_LOG_PREFIX_SIZE]; uint32_t bitmask; diff --git a/include/linux/netfilter_bridge/ebt_mark_m.h b/include/linux/netfilter_bridge/ebt_mark_m.h index 301524ff1065..9ceb10ec0ed6 100644 --- a/include/linux/netfilter_bridge/ebt_mark_m.h +++ b/include/linux/netfilter_bridge/ebt_mark_m.h @@ -4,8 +4,7 @@ #define EBT_MARK_AND 0x01 #define EBT_MARK_OR 0x02 #define EBT_MARK_MASK (EBT_MARK_AND | EBT_MARK_OR) -struct ebt_mark_m_info -{ +struct ebt_mark_m_info { unsigned long mark, mask; uint8_t invert; uint8_t bitmask; diff --git a/include/linux/netfilter_bridge/ebt_mark_t.h b/include/linux/netfilter_bridge/ebt_mark_t.h index 6270f6f33693..7d5a268a4311 100644 --- a/include/linux/netfilter_bridge/ebt_mark_t.h +++ b/include/linux/netfilter_bridge/ebt_mark_t.h @@ -13,8 +13,7 @@ #define MARK_AND_VALUE (0xffffffd0) #define MARK_XOR_VALUE (0xffffffc0) -struct ebt_mark_t_info -{ +struct ebt_mark_t_info { unsigned long mark; /* EBT_ACCEPT, EBT_DROP, EBT_CONTINUE or EBT_RETURN */ int target; diff --git a/include/linux/netfilter_bridge/ebt_nat.h b/include/linux/netfilter_bridge/ebt_nat.h index 435b886a51aa..5e74e3b03bd6 100644 --- a/include/linux/netfilter_bridge/ebt_nat.h +++ b/include/linux/netfilter_bridge/ebt_nat.h @@ -2,8 +2,7 @@ #define __LINUX_BRIDGE_EBT_NAT_H #define NAT_ARP_BIT (0x00000010) -struct ebt_nat_info -{ +struct ebt_nat_info { unsigned char mac[ETH_ALEN]; /* EBT_ACCEPT, EBT_DROP, EBT_CONTINUE or EBT_RETURN */ int target; diff --git a/include/linux/netfilter_bridge/ebt_pkttype.h b/include/linux/netfilter_bridge/ebt_pkttype.h index 0d64bbb29c66..51a799840931 100644 --- a/include/linux/netfilter_bridge/ebt_pkttype.h +++ b/include/linux/netfilter_bridge/ebt_pkttype.h @@ -1,8 +1,7 @@ #ifndef __LINUX_BRIDGE_EBT_PKTTYPE_H #define __LINUX_BRIDGE_EBT_PKTTYPE_H -struct ebt_pkttype_info -{ +struct ebt_pkttype_info { uint8_t pkt_type; uint8_t invert; }; diff --git a/include/linux/netfilter_bridge/ebt_redirect.h b/include/linux/netfilter_bridge/ebt_redirect.h index 5c67990fce39..dd9622ce8488 100644 --- a/include/linux/netfilter_bridge/ebt_redirect.h +++ b/include/linux/netfilter_bridge/ebt_redirect.h @@ -1,8 +1,7 @@ #ifndef __LINUX_BRIDGE_EBT_REDIRECT_H #define __LINUX_BRIDGE_EBT_REDIRECT_H -struct ebt_redirect_info -{ +struct ebt_redirect_info { /* EBT_ACCEPT, EBT_DROP, EBT_CONTINUE or EBT_RETURN */ int target; }; diff --git a/include/linux/netfilter_bridge/ebt_stp.h b/include/linux/netfilter_bridge/ebt_stp.h index e5fd67850f4d..e503a0aa2728 100644 --- a/include/linux/netfilter_bridge/ebt_stp.h +++ b/include/linux/netfilter_bridge/ebt_stp.h @@ -20,8 +20,7 @@ #define EBT_STP_MATCH "stp" -struct ebt_stp_config_info -{ +struct ebt_stp_config_info { uint8_t flags; uint16_t root_priol, root_priou; char root_addr[6], root_addrmsk[6]; @@ -35,8 +34,7 @@ struct ebt_stp_config_info uint16_t forward_delayl, forward_delayu; }; -struct ebt_stp_info -{ +struct ebt_stp_info { uint8_t type; struct ebt_stp_config_info config; uint16_t bitmask; diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h index ea281e6a2048..3cc40c131cc3 100644 --- a/include/linux/netfilter_bridge/ebtables.h +++ b/include/linux/netfilter_bridge/ebtables.h @@ -34,14 +34,12 @@ struct xt_match; struct xt_target; -struct ebt_counter -{ +struct ebt_counter { uint64_t pcnt; uint64_t bcnt; }; -struct ebt_replace -{ +struct ebt_replace { char name[EBT_TABLE_MAXNAMELEN]; unsigned int valid_hooks; /* nr of rules in the table */ @@ -57,8 +55,7 @@ struct ebt_replace char __user *entries; }; -struct ebt_replace_kernel -{ +struct ebt_replace_kernel { char name[EBT_TABLE_MAXNAMELEN]; unsigned int valid_hooks; /* nr of rules in the table */ @@ -120,8 +117,7 @@ struct ebt_entries { #define EBT_INV_MASK (EBT_IPROTO | EBT_IIN | EBT_IOUT | EBT_ILOGICALIN \ | EBT_ILOGICALOUT | EBT_ISOURCE | EBT_IDEST) -struct ebt_entry_match -{ +struct ebt_entry_match { union { char name[EBT_FUNCTION_MAXNAMELEN]; struct xt_match *match; @@ -131,8 +127,7 @@ struct ebt_entry_match unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); }; -struct ebt_entry_watcher -{ +struct ebt_entry_watcher { union { char name[EBT_FUNCTION_MAXNAMELEN]; struct xt_target *watcher; @@ -142,8 +137,7 @@ struct ebt_entry_watcher unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); }; -struct ebt_entry_target -{ +struct ebt_entry_target { union { char name[EBT_FUNCTION_MAXNAMELEN]; struct xt_target *target; @@ -154,8 +148,7 @@ struct ebt_entry_target }; #define EBT_STANDARD_TARGET "standard" -struct ebt_standard_target -{ +struct ebt_standard_target { struct ebt_entry_target target; int verdict; }; @@ -206,8 +199,7 @@ struct ebt_entry { #define EBT_MATCH 0 #define EBT_NOMATCH 1 -struct ebt_match -{ +struct ebt_match { struct list_head list; const char name[EBT_FUNCTION_MAXNAMELEN]; bool (*match)(const struct sk_buff *skb, const struct net_device *in, @@ -224,8 +216,7 @@ struct ebt_match struct module *me; }; -struct ebt_watcher -{ +struct ebt_watcher { struct list_head list; const char name[EBT_FUNCTION_MAXNAMELEN]; unsigned int (*target)(struct sk_buff *skb, @@ -242,8 +233,7 @@ struct ebt_watcher struct module *me; }; -struct ebt_target -{ +struct ebt_target { struct list_head list; const char name[EBT_FUNCTION_MAXNAMELEN]; /* returns one of the standard EBT_* verdicts */ @@ -262,15 +252,13 @@ struct ebt_target }; /* used for jumping from and into user defined chains (udc) */ -struct ebt_chainstack -{ +struct ebt_chainstack { struct ebt_entries *chaininfo; /* pointer to chain data */ struct ebt_entry *e; /* pointer to entry data */ unsigned int n; /* n'th entry */ }; -struct ebt_table_info -{ +struct ebt_table_info { /* total size of the entries */ unsigned int entries_size; unsigned int nentries; @@ -282,8 +270,7 @@ struct ebt_table_info struct ebt_counter counters[0] ____cacheline_aligned; }; -struct ebt_table -{ +struct ebt_table { struct list_head list; char name[EBT_TABLE_MAXNAMELEN]; struct ebt_replace_kernel *table; diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h index 61fafc868a7b..27b3f5807305 100644 --- a/include/linux/netfilter_ipv4/ip_tables.h +++ b/include/linux/netfilter_ipv4/ip_tables.h @@ -76,8 +76,7 @@ struct ipt_ip { /* This structure defines each of the firewall rules. Consists of 3 parts which are 1) general IP header stuff 2) match specific stuff 3) the target to perform if the rule matches */ -struct ipt_entry -{ +struct ipt_entry { struct ipt_ip ip; /* Mark with fields that we care about. */ @@ -135,8 +134,7 @@ struct ipt_entry #define IPT_UDP_INV_MASK XT_UDP_INV_MASK /* ICMP matching stuff */ -struct ipt_icmp -{ +struct ipt_icmp { u_int8_t type; /* type to match */ u_int8_t code[2]; /* range of code */ u_int8_t invflags; /* Inverse flags */ @@ -146,8 +144,7 @@ struct ipt_icmp #define IPT_ICMP_INV 0x01 /* Invert the sense of type/code test */ /* The argument to IPT_SO_GET_INFO */ -struct ipt_getinfo -{ +struct ipt_getinfo { /* Which table: caller fills this in. */ char name[IPT_TABLE_MAXNAMELEN]; @@ -169,8 +166,7 @@ struct ipt_getinfo }; /* The argument to IPT_SO_SET_REPLACE. */ -struct ipt_replace -{ +struct ipt_replace { /* Which table. */ char name[IPT_TABLE_MAXNAMELEN]; @@ -204,8 +200,7 @@ struct ipt_replace #define ipt_counters_info xt_counters_info /* The argument to IPT_SO_GET_ENTRIES. */ -struct ipt_get_entries -{ +struct ipt_get_entries { /* Which table: user fills this in. */ char name[IPT_TABLE_MAXNAMELEN]; @@ -250,20 +245,17 @@ extern struct xt_table *ipt_register_table(struct net *net, extern void ipt_unregister_table(struct xt_table *table); /* Standard entry. */ -struct ipt_standard -{ +struct ipt_standard { struct ipt_entry entry; struct ipt_standard_target target; }; -struct ipt_error_target -{ +struct ipt_error_target { struct ipt_entry_target target; char errorname[IPT_FUNCTION_MAXNAMELEN]; }; -struct ipt_error -{ +struct ipt_error { struct ipt_entry entry; struct ipt_error_target target; }; @@ -301,8 +293,7 @@ extern unsigned int ipt_do_table(struct sk_buff *skb, #ifdef CONFIG_COMPAT #include -struct compat_ipt_entry -{ +struct compat_ipt_entry { struct ipt_ip ip; compat_uint_t nfcache; u_int16_t target_offset; diff --git a/include/linux/netfilter_ipv4/ipt_SAME.h b/include/linux/netfilter_ipv4/ipt_SAME.h index be6e682a85ec..2529660c5b38 100644 --- a/include/linux/netfilter_ipv4/ipt_SAME.h +++ b/include/linux/netfilter_ipv4/ipt_SAME.h @@ -5,8 +5,7 @@ #define IPT_SAME_NODST 0x01 -struct ipt_same_info -{ +struct ipt_same_info { unsigned char info; u_int32_t rangesize; u_int32_t ipnum; diff --git a/include/linux/netfilter_ipv4/ipt_ah.h b/include/linux/netfilter_ipv4/ipt_ah.h index 7b9a2ac7adb9..2e555b4d05e3 100644 --- a/include/linux/netfilter_ipv4/ipt_ah.h +++ b/include/linux/netfilter_ipv4/ipt_ah.h @@ -1,8 +1,7 @@ #ifndef _IPT_AH_H #define _IPT_AH_H -struct ipt_ah -{ +struct ipt_ah { u_int32_t spis[2]; /* Security Parameter Index */ u_int8_t invflags; /* Inverse flags */ }; diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index a64e1451ac38..b31050d20ae4 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -88,8 +88,7 @@ struct ip6t_ip6 { /* This structure defines each of the firewall rules. Consists of 3 parts which are 1) general IP header stuff 2) match specific stuff 3) the target to perform if the rule matches */ -struct ip6t_entry -{ +struct ip6t_entry { struct ip6t_ip6 ipv6; /* Mark with fields that we care about. */ @@ -111,20 +110,17 @@ struct ip6t_entry }; /* Standard entry */ -struct ip6t_standard -{ +struct ip6t_standard { struct ip6t_entry entry; struct ip6t_standard_target target; }; -struct ip6t_error_target -{ +struct ip6t_error_target { struct ip6t_entry_target target; char errorname[IP6T_FUNCTION_MAXNAMELEN]; }; -struct ip6t_error -{ +struct ip6t_error { struct ip6t_entry entry; struct ip6t_error_target target; }; @@ -195,8 +191,7 @@ struct ip6t_error #define IP6T_UDP_INV_MASK XT_UDP_INV_MASK /* ICMP matching stuff */ -struct ip6t_icmp -{ +struct ip6t_icmp { u_int8_t type; /* type to match */ u_int8_t code[2]; /* range of code */ u_int8_t invflags; /* Inverse flags */ @@ -206,8 +201,7 @@ struct ip6t_icmp #define IP6T_ICMP_INV 0x01 /* Invert the sense of type/code test */ /* The argument to IP6T_SO_GET_INFO */ -struct ip6t_getinfo -{ +struct ip6t_getinfo { /* Which table: caller fills this in. */ char name[IP6T_TABLE_MAXNAMELEN]; @@ -229,8 +223,7 @@ struct ip6t_getinfo }; /* The argument to IP6T_SO_SET_REPLACE. */ -struct ip6t_replace -{ +struct ip6t_replace { /* Which table. */ char name[IP6T_TABLE_MAXNAMELEN]; @@ -264,8 +257,7 @@ struct ip6t_replace #define ip6t_counters_info xt_counters_info /* The argument to IP6T_SO_GET_ENTRIES. */ -struct ip6t_get_entries -{ +struct ip6t_get_entries { /* Which table: user fills this in. */ char name[IP6T_TABLE_MAXNAMELEN]; @@ -330,8 +322,7 @@ extern int ip6_masked_addrcmp(const struct in6_addr *addr1, #ifdef CONFIG_COMPAT #include -struct compat_ip6t_entry -{ +struct compat_ip6t_entry { struct ip6t_ip6 ipv6; compat_uint_t nfcache; u_int16_t target_offset; diff --git a/include/linux/netfilter_ipv6/ip6t_ah.h b/include/linux/netfilter_ipv6/ip6t_ah.h index 8531879eb464..17a745cfb2c7 100644 --- a/include/linux/netfilter_ipv6/ip6t_ah.h +++ b/include/linux/netfilter_ipv6/ip6t_ah.h @@ -1,8 +1,7 @@ #ifndef _IP6T_AH_H #define _IP6T_AH_H -struct ip6t_ah -{ +struct ip6t_ah { u_int32_t spis[2]; /* Security Parameter Index */ u_int32_t hdrlen; /* Header Length */ u_int8_t hdrres; /* Test of the Reserved Filed */ diff --git a/include/linux/netfilter_ipv6/ip6t_frag.h b/include/linux/netfilter_ipv6/ip6t_frag.h index 66070a0d6dfc..3724d0850920 100644 --- a/include/linux/netfilter_ipv6/ip6t_frag.h +++ b/include/linux/netfilter_ipv6/ip6t_frag.h @@ -1,8 +1,7 @@ #ifndef _IP6T_FRAG_H #define _IP6T_FRAG_H -struct ip6t_frag -{ +struct ip6t_frag { u_int32_t ids[2]; /* Security Parameter Index */ u_int32_t hdrlen; /* Header Length */ u_int8_t flags; /* */ diff --git a/include/linux/netfilter_ipv6/ip6t_ipv6header.h b/include/linux/netfilter_ipv6/ip6t_ipv6header.h index 51c53fc9c44a..01dfd445596a 100644 --- a/include/linux/netfilter_ipv6/ip6t_ipv6header.h +++ b/include/linux/netfilter_ipv6/ip6t_ipv6header.h @@ -8,8 +8,7 @@ on whether they contain certain headers */ #ifndef __IPV6HEADER_H #define __IPV6HEADER_H -struct ip6t_ipv6header_info -{ +struct ip6t_ipv6header_info { u_int8_t matchflags; u_int8_t invflags; u_int8_t modeflag; diff --git a/include/linux/netfilter_ipv6/ip6t_mh.h b/include/linux/netfilter_ipv6/ip6t_mh.h index b9ca9a5f74d0..18549bca2d1f 100644 --- a/include/linux/netfilter_ipv6/ip6t_mh.h +++ b/include/linux/netfilter_ipv6/ip6t_mh.h @@ -2,8 +2,7 @@ #define _IP6T_MH_H /* MH matching stuff */ -struct ip6t_mh -{ +struct ip6t_mh { u_int8_t types[2]; /* MH type range */ u_int8_t invflags; /* Inverse flags */ }; diff --git a/include/linux/netfilter_ipv6/ip6t_opts.h b/include/linux/netfilter_ipv6/ip6t_opts.h index a07e36380ae8..62d89bcd9f9c 100644 --- a/include/linux/netfilter_ipv6/ip6t_opts.h +++ b/include/linux/netfilter_ipv6/ip6t_opts.h @@ -3,8 +3,7 @@ #define IP6T_OPTS_OPTSNR 16 -struct ip6t_opts -{ +struct ip6t_opts { u_int32_t hdrlen; /* Header Length */ u_int8_t flags; /* */ u_int8_t invflags; /* Inverse flags */ diff --git a/include/linux/netfilter_ipv6/ip6t_rt.h b/include/linux/netfilter_ipv6/ip6t_rt.h index 52156023e8db..ab91bfd2cd00 100644 --- a/include/linux/netfilter_ipv6/ip6t_rt.h +++ b/include/linux/netfilter_ipv6/ip6t_rt.h @@ -5,8 +5,7 @@ #define IP6T_RT_HOPS 16 -struct ip6t_rt -{ +struct ip6t_rt { u_int32_t rt_type; /* Routing Type */ u_int32_t segsleft[2]; /* Segments Left */ u_int32_t hdrlen; /* Header Length */ diff --git a/include/linux/netlink.h b/include/linux/netlink.h index ab5d3126831f..fde27c017326 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -29,16 +29,14 @@ struct net; -struct sockaddr_nl -{ +struct sockaddr_nl { sa_family_t nl_family; /* AF_NETLINK */ unsigned short nl_pad; /* zero */ __u32 nl_pid; /* port ID */ __u32 nl_groups; /* multicast groups mask */ }; -struct nlmsghdr -{ +struct nlmsghdr { __u32 nlmsg_len; /* Length of message including header */ __u16 nlmsg_type; /* Message content */ __u16 nlmsg_flags; /* Additional flags */ @@ -94,8 +92,7 @@ struct nlmsghdr #define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */ -struct nlmsgerr -{ +struct nlmsgerr { int error; struct nlmsghdr msg; }; @@ -106,8 +103,7 @@ struct nlmsgerr #define NETLINK_BROADCAST_ERROR 4 #define NETLINK_NO_ENOBUFS 5 -struct nl_pktinfo -{ +struct nl_pktinfo { __u32 group; }; @@ -127,8 +123,7 @@ enum { * <-------------- nlattr->nla_len --------------> */ -struct nlattr -{ +struct nlattr { __u16 nla_len; __u16 nla_type; }; @@ -161,8 +156,7 @@ static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb) return (struct nlmsghdr *)skb->data; } -struct netlink_skb_parms -{ +struct netlink_skb_parms { struct ucred creds; /* Skb credentials */ __u32 pid; __u32 dst_group; @@ -220,8 +214,7 @@ int netlink_sendskb(struct sock *sk, struct sk_buff *skb); #define NLMSG_DEFAULT_SIZE (NLMSG_GOODSIZE - NLMSG_HDRLEN) -struct netlink_callback -{ +struct netlink_callback { struct sk_buff *skb; const struct nlmsghdr *nlh; int (*dump)(struct sk_buff * skb, @@ -231,8 +224,7 @@ struct netlink_callback long args[6]; }; -struct netlink_notify -{ +struct netlink_notify { struct net *net; int pid; int protocol; diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h index 3c842edff388..7f6ba8658abe 100644 --- a/include/linux/pkt_cls.h +++ b/include/linux/pkt_cls.h @@ -75,8 +75,7 @@ bits 9,10,11: redirect counter - redirect TTL. Loop avoidance #define SET_TC_AT(v,n) ((V_TC_AT(n)) | (v & ~M_TC_AT)) /* Action attributes */ -enum -{ +enum { TCA_ACT_UNSPEC, TCA_ACT_KIND, TCA_ACT_OPTIONS, @@ -108,8 +107,7 @@ enum #define TC_ACT_JUMP 0x10000000 /* Action type identifiers*/ -enum -{ +enum { TCA_ID_UNSPEC=0, TCA_ID_POLICE=1, /* other actions go here */ @@ -118,8 +116,7 @@ enum #define TCA_ID_MAX __TCA_ID_MAX -struct tc_police -{ +struct tc_police { __u32 index; int action; #define TC_POLICE_UNSPEC TC_ACT_UNSPEC @@ -138,15 +135,13 @@ struct tc_police __u32 capab; }; -struct tcf_t -{ +struct tcf_t { __u64 install; __u64 lastuse; __u64 expires; }; -struct tc_cnt -{ +struct tc_cnt { int refcnt; int bindcnt; }; @@ -158,8 +153,7 @@ struct tc_cnt int refcnt; \ int bindcnt -enum -{ +enum { TCA_POLICE_UNSPEC, TCA_POLICE_TBF, TCA_POLICE_RATE, @@ -182,8 +176,7 @@ enum #define TC_U32_UNSPEC 0 #define TC_U32_ROOT (0xFFF00000) -enum -{ +enum { TCA_U32_UNSPEC, TCA_U32_CLASSID, TCA_U32_HASH, @@ -200,16 +193,14 @@ enum #define TCA_U32_MAX (__TCA_U32_MAX - 1) -struct tc_u32_key -{ +struct tc_u32_key { __be32 mask; __be32 val; int off; int offmask; }; -struct tc_u32_sel -{ +struct tc_u32_sel { unsigned char flags; unsigned char offshift; unsigned char nkeys; @@ -223,15 +214,13 @@ struct tc_u32_sel struct tc_u32_key keys[0]; }; -struct tc_u32_mark -{ +struct tc_u32_mark { __u32 val; __u32 mask; __u32 success; }; -struct tc_u32_pcnt -{ +struct tc_u32_pcnt { __u64 rcnt; __u64 rhit; __u64 kcnts[0]; @@ -249,8 +238,7 @@ struct tc_u32_pcnt /* RSVP filter */ -enum -{ +enum { TCA_RSVP_UNSPEC, TCA_RSVP_CLASSID, TCA_RSVP_DST, @@ -263,15 +251,13 @@ enum #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 ) -struct tc_rsvp_gpi -{ +struct tc_rsvp_gpi { __u32 key; __u32 mask; int offset; }; -struct tc_rsvp_pinfo -{ +struct tc_rsvp_pinfo { struct tc_rsvp_gpi dpi; struct tc_rsvp_gpi spi; __u8 protocol; @@ -282,8 +268,7 @@ struct tc_rsvp_pinfo /* ROUTE filter */ -enum -{ +enum { TCA_ROUTE4_UNSPEC, TCA_ROUTE4_CLASSID, TCA_ROUTE4_TO, @@ -299,8 +284,7 @@ enum /* FW filter */ -enum -{ +enum { TCA_FW_UNSPEC, TCA_FW_CLASSID, TCA_FW_POLICE, @@ -314,8 +298,7 @@ enum /* TC index filter */ -enum -{ +enum { TCA_TCINDEX_UNSPEC, TCA_TCINDEX_HASH, TCA_TCINDEX_MASK, @@ -331,8 +314,7 @@ enum /* Flow filter */ -enum -{ +enum { FLOW_KEY_SRC, FLOW_KEY_DST, FLOW_KEY_PROTO, @@ -355,14 +337,12 @@ enum #define FLOW_KEY_MAX (__FLOW_KEY_MAX - 1) -enum -{ +enum { FLOW_MODE_MAP, FLOW_MODE_HASH, }; -enum -{ +enum { TCA_FLOW_UNSPEC, TCA_FLOW_KEYS, TCA_FLOW_MODE, @@ -383,8 +363,7 @@ enum /* Basic filter */ -enum -{ +enum { TCA_BASIC_UNSPEC, TCA_BASIC_CLASSID, TCA_BASIC_EMATCHES, @@ -398,8 +377,7 @@ enum /* Cgroup classifier */ -enum -{ +enum { TCA_CGROUP_UNSPEC, TCA_CGROUP_ACT, TCA_CGROUP_POLICE, @@ -411,14 +389,12 @@ enum /* Extended Matches */ -struct tcf_ematch_tree_hdr -{ +struct tcf_ematch_tree_hdr { __u16 nmatches; __u16 progid; }; -enum -{ +enum { TCA_EMATCH_TREE_UNSPEC, TCA_EMATCH_TREE_HDR, TCA_EMATCH_TREE_LIST, @@ -426,8 +402,7 @@ enum }; #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) -struct tcf_ematch_hdr -{ +struct tcf_ematch_hdr { __u16 matchid; __u16 kind; __u16 flags; @@ -457,8 +432,7 @@ struct tcf_ematch_hdr #define TCF_EM_REL_MASK 3 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) -enum -{ +enum { TCF_LAYER_LINK, TCF_LAYER_NETWORK, TCF_LAYER_TRANSPORT, @@ -479,13 +453,11 @@ enum #define TCF_EM_VLAN 6 #define TCF_EM_MAX 6 -enum -{ +enum { TCF_EM_PROG_TC }; -enum -{ +enum { TCF_EM_OPND_EQ, TCF_EM_OPND_GT, TCF_EM_OPND_LT diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h index d51a2b3e221e..2cfa4bc8dea6 100644 --- a/include/linux/pkt_sched.h +++ b/include/linux/pkt_sched.h @@ -29,8 +29,7 @@ Particular schedulers may have also their private records. */ -struct tc_stats -{ +struct tc_stats { __u64 bytes; /* NUmber of enqueues bytes */ __u32 packets; /* Number of enqueued packets */ __u32 drops; /* Packets dropped because of lack of resources */ @@ -42,8 +41,7 @@ struct tc_stats __u32 backlog; }; -struct tc_estimator -{ +struct tc_estimator { signed char interval; unsigned char ewma_log; }; @@ -75,8 +73,7 @@ struct tc_estimator #define TC_H_ROOT (0xFFFFFFFFU) #define TC_H_INGRESS (0xFFFFFFF1U) -struct tc_ratespec -{ +struct tc_ratespec { unsigned char cell_log; unsigned char __reserved; unsigned short overhead; @@ -109,8 +106,7 @@ enum { /* FIFO section */ -struct tc_fifo_qopt -{ +struct tc_fifo_qopt { __u32 limit; /* Queue length: bytes for bfifo, packets for pfifo */ }; @@ -119,8 +115,7 @@ struct tc_fifo_qopt #define TCQ_PRIO_BANDS 16 #define TCQ_MIN_PRIO_BANDS 2 -struct tc_prio_qopt -{ +struct tc_prio_qopt { int bands; /* Number of bands */ __u8 priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */ }; @@ -134,8 +129,7 @@ struct tc_multiq_qopt { /* TBF section */ -struct tc_tbf_qopt -{ +struct tc_tbf_qopt { struct tc_ratespec rate; struct tc_ratespec peakrate; __u32 limit; @@ -143,8 +137,7 @@ struct tc_tbf_qopt __u32 mtu; }; -enum -{ +enum { TCA_TBF_UNSPEC, TCA_TBF_PARMS, TCA_TBF_RTAB, @@ -161,8 +154,7 @@ enum /* SFQ section */ -struct tc_sfq_qopt -{ +struct tc_sfq_qopt { unsigned quantum; /* Bytes per round allocated to flow */ int perturb_period; /* Period of hash perturbation */ __u32 limit; /* Maximal packets in queue */ @@ -170,8 +162,7 @@ struct tc_sfq_qopt unsigned flows; /* Maximal number of flows */ }; -struct tc_sfq_xstats -{ +struct tc_sfq_xstats { __s32 allot; }; @@ -186,8 +177,7 @@ struct tc_sfq_xstats /* RED section */ -enum -{ +enum { TCA_RED_UNSPEC, TCA_RED_PARMS, TCA_RED_STAB, @@ -196,8 +186,7 @@ enum #define TCA_RED_MAX (__TCA_RED_MAX - 1) -struct tc_red_qopt -{ +struct tc_red_qopt { __u32 limit; /* HARD maximal queue length (bytes) */ __u32 qth_min; /* Min average length threshold (bytes) */ __u32 qth_max; /* Max average length threshold (bytes) */ @@ -209,8 +198,7 @@ struct tc_red_qopt #define TC_RED_HARDDROP 2 }; -struct tc_red_xstats -{ +struct tc_red_xstats { __u32 early; /* Early drops */ __u32 pdrop; /* Drops due to queue limits */ __u32 other; /* Drops due to drop() calls */ @@ -221,8 +209,7 @@ struct tc_red_xstats #define MAX_DPs 16 -enum -{ +enum { TCA_GRED_UNSPEC, TCA_GRED_PARMS, TCA_GRED_STAB, @@ -232,8 +219,7 @@ enum #define TCA_GRED_MAX (__TCA_GRED_MAX - 1) -struct tc_gred_qopt -{ +struct tc_gred_qopt { __u32 limit; /* HARD maximal queue length (bytes) */ __u32 qth_min; /* Min average length threshold (bytes) */ __u32 qth_max; /* Max average length threshold (bytes) */ @@ -253,8 +239,7 @@ struct tc_gred_qopt }; /* gred setup */ -struct tc_gred_sopt -{ +struct tc_gred_sopt { __u32 DPs; __u32 def_DP; __u8 grio; @@ -267,8 +252,7 @@ struct tc_gred_sopt #define TC_HTB_MAXDEPTH 8 #define TC_HTB_PROTOVER 3 /* the same as HTB and TC's major */ -struct tc_htb_opt -{ +struct tc_htb_opt { struct tc_ratespec rate; struct tc_ratespec ceil; __u32 buffer; @@ -277,8 +261,7 @@ struct tc_htb_opt __u32 level; /* out only */ __u32 prio; }; -struct tc_htb_glob -{ +struct tc_htb_glob { __u32 version; /* to match HTB/TC */ __u32 rate2quantum; /* bps->quantum divisor */ __u32 defcls; /* default class number */ @@ -287,8 +270,7 @@ struct tc_htb_glob /* stats */ __u32 direct_pkts; /* count of non shapped packets */ }; -enum -{ +enum { TCA_HTB_UNSPEC, TCA_HTB_PARMS, TCA_HTB_INIT, @@ -299,8 +281,7 @@ enum #define TCA_HTB_MAX (__TCA_HTB_MAX - 1) -struct tc_htb_xstats -{ +struct tc_htb_xstats { __u32 lends; __u32 borrows; __u32 giants; /* too big packets (rate will not be accurate) */ @@ -310,28 +291,24 @@ struct tc_htb_xstats /* HFSC section */ -struct tc_hfsc_qopt -{ +struct tc_hfsc_qopt { __u16 defcls; /* default class */ }; -struct tc_service_curve -{ +struct tc_service_curve { __u32 m1; /* slope of the first segment in bps */ __u32 d; /* x-projection of the first segment in us */ __u32 m2; /* slope of the second segment in bps */ }; -struct tc_hfsc_stats -{ +struct tc_hfsc_stats { __u64 work; /* total work done */ __u64 rtwork; /* work done by real-time criteria */ __u32 period; /* current period */ __u32 level; /* class level in hierarchy */ }; -enum -{ +enum { TCA_HFSC_UNSPEC, TCA_HFSC_RSC, TCA_HFSC_FSC, @@ -348,8 +325,7 @@ enum #define TC_CBQ_MAXLEVEL 8 #define TC_CBQ_DEF_EWMA 5 -struct tc_cbq_lssopt -{ +struct tc_cbq_lssopt { unsigned char change; unsigned char flags; #define TCF_CBQ_LSS_BOUNDED 1 @@ -368,8 +344,7 @@ struct tc_cbq_lssopt __u32 avpkt; }; -struct tc_cbq_wrropt -{ +struct tc_cbq_wrropt { unsigned char flags; unsigned char priority; unsigned char cpriority; @@ -378,8 +353,7 @@ struct tc_cbq_wrropt __u32 weight; }; -struct tc_cbq_ovl -{ +struct tc_cbq_ovl { unsigned char strategy; #define TC_CBQ_OVL_CLASSIC 0 #define TC_CBQ_OVL_DELAY 1 @@ -391,30 +365,26 @@ struct tc_cbq_ovl __u32 penalty; }; -struct tc_cbq_police -{ +struct tc_cbq_police { unsigned char police; unsigned char __res1; unsigned short __res2; }; -struct tc_cbq_fopt -{ +struct tc_cbq_fopt { __u32 split; __u32 defmap; __u32 defchange; }; -struct tc_cbq_xstats -{ +struct tc_cbq_xstats { __u32 borrows; __u32 overactions; __s32 avgidle; __s32 undertime; }; -enum -{ +enum { TCA_CBQ_UNSPEC, TCA_CBQ_LSSOPT, TCA_CBQ_WRROPT, @@ -459,8 +429,7 @@ enum { /* Network emulator */ -enum -{ +enum { TCA_NETEM_UNSPEC, TCA_NETEM_CORR, TCA_NETEM_DELAY_DIST, @@ -471,8 +440,7 @@ enum #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1) -struct tc_netem_qopt -{ +struct tc_netem_qopt { __u32 latency; /* added delay (us) */ __u32 limit; /* fifo limit (packets) */ __u32 loss; /* random packet loss (0=none ~0=100%) */ @@ -481,21 +449,18 @@ struct tc_netem_qopt __u32 jitter; /* random jitter in latency (us) */ }; -struct tc_netem_corr -{ +struct tc_netem_corr { __u32 delay_corr; /* delay correlation */ __u32 loss_corr; /* packet loss correlation */ __u32 dup_corr; /* duplicate correlation */ }; -struct tc_netem_reorder -{ +struct tc_netem_reorder { __u32 probability; __u32 correlation; }; -struct tc_netem_corrupt -{ +struct tc_netem_corrupt { __u32 probability; __u32 correlation; }; @@ -504,8 +469,7 @@ struct tc_netem_corrupt /* DRR */ -enum -{ +enum { TCA_DRR_UNSPEC, TCA_DRR_QUANTUM, __TCA_DRR_MAX @@ -513,8 +477,7 @@ enum #define TCA_DRR_MAX (__TCA_DRR_MAX - 1) -struct tc_drr_stats -{ +struct tc_drr_stats { __u32 deficit; }; diff --git a/include/linux/route.h b/include/linux/route.h index f7ed35d5e653..6600708311c8 100644 --- a/include/linux/route.h +++ b/include/linux/route.h @@ -27,8 +27,7 @@ #include /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ -struct rtentry -{ +struct rtentry { unsigned long rt_pad1; struct sockaddr rt_dst; /* target address */ struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index e78b60cd65a4..14fc906ed602 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -127,8 +127,7 @@ enum { with attribute type. */ -struct rtattr -{ +struct rtattr { unsigned short rta_len; unsigned short rta_type; }; @@ -154,8 +153,7 @@ struct rtattr * Definitions used in routing table administration. ****/ -struct rtmsg -{ +struct rtmsg { unsigned char rtm_family; unsigned char rtm_dst_len; unsigned char rtm_src_len; @@ -171,8 +169,7 @@ struct rtmsg /* rtm_type */ -enum -{ +enum { RTN_UNSPEC, RTN_UNICAST, /* Gateway or direct route */ RTN_LOCAL, /* Accept locally */ @@ -230,8 +227,7 @@ enum could be assigned a value between UNIVERSE and LINK. */ -enum rt_scope_t -{ +enum rt_scope_t { RT_SCOPE_UNIVERSE=0, /* User defined values */ RT_SCOPE_SITE=200, @@ -249,8 +245,7 @@ enum rt_scope_t /* Reserved table identifiers */ -enum rt_class_t -{ +enum rt_class_t { RT_TABLE_UNSPEC=0, /* User defined values */ RT_TABLE_COMPAT=252, @@ -263,8 +258,7 @@ enum rt_class_t /* Routing message attributes */ -enum rtattr_type_t -{ +enum rtattr_type_t { RTA_UNSPEC, RTA_DST, RTA_SRC, @@ -298,8 +292,7 @@ enum rtattr_type_t * and rtt for different paths from multipath. */ -struct rtnexthop -{ +struct rtnexthop { unsigned short rtnh_len; unsigned char rtnh_flags; unsigned char rtnh_hops; @@ -325,8 +318,7 @@ struct rtnexthop /* RTM_CACHEINFO */ -struct rta_cacheinfo -{ +struct rta_cacheinfo { __u32 rta_clntref; __u32 rta_lastuse; __s32 rta_expires; @@ -341,8 +333,7 @@ struct rta_cacheinfo /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ -enum -{ +enum { RTAX_UNSPEC, #define RTAX_UNSPEC RTAX_UNSPEC RTAX_LOCK, @@ -383,8 +374,7 @@ enum #define RTAX_FEATURE_NO_WSCALE 0x00000010 #define RTAX_FEATURE_NO_DSACK 0x00000020 -struct rta_session -{ +struct rta_session { __u8 proto; __u8 pad1; __u16 pad2; @@ -409,8 +399,7 @@ struct rta_session * General form of address family dependent message. ****/ -struct rtgenmsg -{ +struct rtgenmsg { unsigned char rtgen_family; }; @@ -423,8 +412,7 @@ struct rtgenmsg * on network protocol. */ -struct ifinfomsg -{ +struct ifinfomsg { unsigned char ifi_family; unsigned char __ifi_pad; unsigned short ifi_type; /* ARPHRD_* */ @@ -437,8 +425,7 @@ struct ifinfomsg * prefix information ****/ -struct prefixmsg -{ +struct prefixmsg { unsigned char prefix_family; unsigned char prefix_pad1; unsigned short prefix_pad2; @@ -459,8 +446,7 @@ enum #define PREFIX_MAX (__PREFIX_MAX - 1) -struct prefix_cacheinfo -{ +struct prefix_cacheinfo { __u32 preferred_time; __u32 valid_time; }; @@ -470,8 +456,7 @@ struct prefix_cacheinfo * Traffic control messages. ****/ -struct tcmsg -{ +struct tcmsg { unsigned char tcm_family; unsigned char tcm__pad1; unsigned short tcm__pad2; @@ -481,8 +466,7 @@ struct tcmsg __u32 tcm_info; }; -enum -{ +enum { TCA_UNSPEC, TCA_KIND, TCA_OPTIONS, @@ -504,8 +488,7 @@ enum * Neighbor Discovery userland options ****/ -struct nduseroptmsg -{ +struct nduseroptmsg { unsigned char nduseropt_family; unsigned char nduseropt_pad1; unsigned short nduseropt_opts_len; /* Total length of options */ @@ -517,8 +500,7 @@ struct nduseroptmsg /* Followed by one or more ND options */ }; -enum -{ +enum { NDUSEROPT_UNSPEC, NDUSEROPT_SRCADDR, __NDUSEROPT_MAX @@ -600,8 +582,7 @@ enum rtnetlink_groups { #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) /* TC action piece */ -struct tcamsg -{ +struct tcamsg { unsigned char tca_family; unsigned char tca__pad1; unsigned short tca__pad2; diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 0c68fbd6faac..d0448c5d1ffc 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -491,8 +491,7 @@ extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb, int len,int odd, struct sk_buff *skb), void *from, int length); -struct skb_seq_state -{ +struct skb_seq_state { __u32 lower_offset; __u32 upper_offset; __u32 frag_idx; diff --git a/include/linux/tc_act/tc_defact.h b/include/linux/tc_act/tc_defact.h index 964f473af0f0..6f65d07c7ce2 100644 --- a/include/linux/tc_act/tc_defact.h +++ b/include/linux/tc_act/tc_defact.h @@ -3,13 +3,11 @@ #include -struct tc_defact -{ +struct tc_defact { tc_gen; }; -enum -{ +enum { TCA_DEF_UNSPEC, TCA_DEF_TM, TCA_DEF_PARMS, diff --git a/include/linux/tc_act/tc_gact.h b/include/linux/tc_act/tc_gact.h index e895c0a39629..f7bf94eed510 100644 --- a/include/linux/tc_act/tc_gact.h +++ b/include/linux/tc_act/tc_gact.h @@ -5,14 +5,12 @@ #include #define TCA_ACT_GACT 5 -struct tc_gact -{ +struct tc_gact { tc_gen; }; -struct tc_gact_p -{ +struct tc_gact_p { #define PGACT_NONE 0 #define PGACT_NETRAND 1 #define PGACT_DETERM 2 @@ -22,8 +20,7 @@ struct tc_gact_p int paction; }; -enum -{ +enum { TCA_GACT_UNSPEC, TCA_GACT_TM, TCA_GACT_PARMS, diff --git a/include/linux/tc_act/tc_ipt.h b/include/linux/tc_act/tc_ipt.h index 4b6f7b6c7a79..a2335563d21f 100644 --- a/include/linux/tc_act/tc_ipt.h +++ b/include/linux/tc_act/tc_ipt.h @@ -5,8 +5,7 @@ #define TCA_ACT_IPT 6 -enum -{ +enum { TCA_IPT_UNSPEC, TCA_IPT_TABLE, TCA_IPT_HOOK, diff --git a/include/linux/tc_act/tc_mirred.h b/include/linux/tc_act/tc_mirred.h index 0a99ab60d610..7561750e8fd6 100644 --- a/include/linux/tc_act/tc_mirred.h +++ b/include/linux/tc_act/tc_mirred.h @@ -10,15 +10,13 @@ #define TCA_INGRESS_REDIR 3 /* packet redirect to INGRESS*/ #define TCA_INGRESS_MIRROR 4 /* mirror packet to INGRESS */ -struct tc_mirred -{ +struct tc_mirred { tc_gen; int eaction; /* one of IN/EGRESS_MIRROR/REDIR */ __u32 ifindex; /* ifindex of egress port */ }; -enum -{ +enum { TCA_MIRRED_UNSPEC, TCA_MIRRED_TM, TCA_MIRRED_PARMS, diff --git a/include/linux/tc_act/tc_nat.h b/include/linux/tc_act/tc_nat.h index e7cf31e8ba79..6663aeba0b9a 100644 --- a/include/linux/tc_act/tc_nat.h +++ b/include/linux/tc_act/tc_nat.h @@ -6,8 +6,7 @@ #define TCA_ACT_NAT 9 -enum -{ +enum { TCA_NAT_UNSPEC, TCA_NAT_PARMS, TCA_NAT_TM, @@ -17,8 +16,7 @@ enum #define TCA_NAT_FLAG_EGRESS 1 -struct tc_nat -{ +struct tc_nat { tc_gen; __be32 old_addr; __be32 new_addr; diff --git a/include/linux/tc_act/tc_pedit.h b/include/linux/tc_act/tc_pedit.h index 54ce9064115a..716cfabcd5b2 100644 --- a/include/linux/tc_act/tc_pedit.h +++ b/include/linux/tc_act/tc_pedit.h @@ -6,8 +6,7 @@ #define TCA_ACT_PEDIT 7 -enum -{ +enum { TCA_PEDIT_UNSPEC, TCA_PEDIT_TM, TCA_PEDIT_PARMS, @@ -15,8 +14,7 @@ enum }; #define TCA_PEDIT_MAX (__TCA_PEDIT_MAX - 1) -struct tc_pedit_key -{ +struct tc_pedit_key { __u32 mask; /* AND */ __u32 val; /*XOR */ __u32 off; /*offset */ @@ -25,8 +23,7 @@ struct tc_pedit_key __u32 shift; }; -struct tc_pedit_sel -{ +struct tc_pedit_sel { tc_gen; unsigned char nkeys; unsigned char flags; diff --git a/include/linux/tc_ematch/tc_em_cmp.h b/include/linux/tc_ematch/tc_em_cmp.h index 38e7f7b25ec2..f34bb1bae083 100644 --- a/include/linux/tc_ematch/tc_em_cmp.h +++ b/include/linux/tc_ematch/tc_em_cmp.h @@ -4,8 +4,7 @@ #include #include -struct tcf_em_cmp -{ +struct tcf_em_cmp { __u32 val; __u32 mask; __u16 off; @@ -15,8 +14,7 @@ struct tcf_em_cmp __u8 opnd:4; }; -enum -{ +enum { TCF_EM_ALIGN_U8 = 1, TCF_EM_ALIGN_U16 = 2, TCF_EM_ALIGN_U32 = 4 diff --git a/include/linux/tc_ematch/tc_em_meta.h b/include/linux/tc_ematch/tc_em_meta.h index dcfb733fa1f6..0864206ec1a3 100644 --- a/include/linux/tc_ematch/tc_em_meta.h +++ b/include/linux/tc_ematch/tc_em_meta.h @@ -4,8 +4,7 @@ #include #include -enum -{ +enum { TCA_EM_META_UNSPEC, TCA_EM_META_HDR, TCA_EM_META_LVALUE, @@ -14,8 +13,7 @@ enum }; #define TCA_EM_META_MAX (__TCA_EM_META_MAX - 1) -struct tcf_meta_val -{ +struct tcf_meta_val { __u16 kind; __u8 shift; __u8 op; @@ -26,16 +24,14 @@ struct tcf_meta_val #define TCF_META_ID_MASK 0x7ff #define TCF_META_ID(kind) ((kind) & TCF_META_ID_MASK) -enum -{ +enum { TCF_META_TYPE_VAR, TCF_META_TYPE_INT, __TCF_META_TYPE_MAX }; #define TCF_META_TYPE_MAX (__TCF_META_TYPE_MAX - 1) -enum -{ +enum { TCF_META_ID_VALUE, TCF_META_ID_RANDOM, TCF_META_ID_LOADAVG_0, @@ -87,8 +83,7 @@ enum }; #define TCF_META_ID_MAX (__TCF_META_ID_MAX - 1) -struct tcf_meta_hdr -{ +struct tcf_meta_hdr { struct tcf_meta_val left; struct tcf_meta_val right; }; diff --git a/include/linux/tc_ematch/tc_em_nbyte.h b/include/linux/tc_ematch/tc_em_nbyte.h index 9ed8c2e58488..7172cfb999c1 100644 --- a/include/linux/tc_ematch/tc_em_nbyte.h +++ b/include/linux/tc_ematch/tc_em_nbyte.h @@ -4,8 +4,7 @@ #include #include -struct tcf_em_nbyte -{ +struct tcf_em_nbyte { __u16 off; __u16 len:12; __u8 layer:4; diff --git a/include/linux/tc_ematch/tc_em_text.h b/include/linux/tc_ematch/tc_em_text.h index d12a73a225fc..5aac4045ba88 100644 --- a/include/linux/tc_ematch/tc_em_text.h +++ b/include/linux/tc_ematch/tc_em_text.h @@ -6,8 +6,7 @@ #define TC_EM_TEXT_ALGOSIZ 16 -struct tcf_em_text -{ +struct tcf_em_text { char algo[TC_EM_TEXT_ALGOSIZ]; __u16 from_offset; __u16 to_offset; diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 61723a7c21fe..eeecb8547a2a 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -102,8 +102,7 @@ enum { #define TCPI_OPT_WSCALE 4 #define TCPI_OPT_ECN 8 -enum tcp_ca_state -{ +enum tcp_ca_state { TCP_CA_Open = 0, #define TCPF_CA_Open (1< Date: Thu, 5 Nov 2009 20:44:37 -0800 Subject: net: drop capability from protocol definitions struct can_proto had a capability field which wasn't ever used. It is dropped entirely. struct inet_protosw had a capability field which can be more clearly expressed in the code by just checking if sock->type = SOCK_RAW. Signed-off-by: Eric Paris Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- include/linux/can/core.h | 2 -- include/net/protocol.h | 4 ---- net/can/af_can.c | 5 ----- net/can/bcm.c | 1 - net/can/raw.c | 1 - net/dccp/ipv4.c | 1 - net/dccp/ipv6.c | 1 - net/ipv4/af_inet.c | 5 +---- net/ipv4/udplite.c | 1 - net/ipv6/af_inet6.c | 2 +- net/ipv6/raw.c | 1 - net/ipv6/tcp_ipv6.c | 1 - net/ipv6/udp.c | 1 - net/ipv6/udplite.c | 1 - net/sctp/ipv6.c | 2 -- net/sctp/protocol.c | 2 -- 16 files changed, 2 insertions(+), 29 deletions(-) (limited to 'include/linux') diff --git a/include/linux/can/core.h b/include/linux/can/core.h index 25085cbadcfc..6c507bea275f 100644 --- a/include/linux/can/core.h +++ b/include/linux/can/core.h @@ -32,14 +32,12 @@ * struct can_proto - CAN protocol structure * @type: type argument in socket() syscall, e.g. SOCK_DGRAM. * @protocol: protocol number in socket() syscall. - * @capability: capability needed to open the socket, or -1 for no restriction. * @ops: pointer to struct proto_ops for sock->ops. * @prot: pointer to struct proto structure. */ struct can_proto { int type; int protocol; - int capability; struct proto_ops *ops; struct proto *prot; }; diff --git a/include/net/protocol.h b/include/net/protocol.h index 89932d45da59..f1effdd3c265 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -82,10 +82,6 @@ struct inet_protosw { struct proto *prot; const struct proto_ops *ops; - int capability; /* Which (if any) capability do - * we need to use this socket - * interface? - */ char no_check; /* checksum on rcv/xmit/none? */ unsigned char flags; /* See INET_PROTOSW_* below. */ }; diff --git a/net/can/af_can.c b/net/can/af_can.c index 3f2eb27e1ffb..9c0426dc3184 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -160,11 +160,6 @@ static int can_create(struct net *net, struct socket *sock, int protocol) goto errout; } - if (cp->capability >= 0 && !capable(cp->capability)) { - err = -EPERM; - goto errout; - } - sock->ops = cp->ops; sk = sk_alloc(net, PF_CAN, GFP_KERNEL, cp->prot); diff --git a/net/can/bcm.c b/net/can/bcm.c index 2f47039c79dd..67b5433db13b 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1576,7 +1576,6 @@ static struct proto bcm_proto __read_mostly = { static struct can_proto bcm_can_proto __read_mostly = { .type = SOCK_DGRAM, .protocol = CAN_BCM, - .capability = -1, .ops = &bcm_ops, .prot = &bcm_proto, }; diff --git a/net/can/raw.c b/net/can/raw.c index 6e77db58b9e6..abca920440b5 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -742,7 +742,6 @@ static struct proto raw_proto __read_mostly = { static struct can_proto raw_can_proto __read_mostly = { .type = SOCK_RAW, .protocol = CAN_RAW, - .capability = -1, .ops = &raw_ops, .prot = &raw_proto, }; diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 00028d4b09d9..2423a0866733 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -991,7 +991,6 @@ static struct inet_protosw dccp_v4_protosw = { .protocol = IPPROTO_DCCP, .prot = &dccp_v4_prot, .ops = &inet_dccp_ops, - .capability = -1, .no_check = 0, .flags = INET_PROTOSW_ICSK, }; diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 6d89f9f7d5d8..50ea91a77705 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1185,7 +1185,6 @@ static struct inet_protosw dccp_v6_protosw = { .protocol = IPPROTO_DCCP, .prot = &dccp_v6_prot, .ops = &inet6_dccp_ops, - .capability = -1, .flags = INET_PROTOSW_ICSK, }; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 538e84d0bcba..180ec4c94919 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -325,7 +325,7 @@ lookup_protocol: } err = -EPERM; - if (answer->capability > 0 && !capable(answer->capability)) + if (sock->type == SOCK_RAW && !capable(CAP_NET_RAW)) goto out_rcu_unlock; err = -EAFNOSUPPORT; @@ -947,7 +947,6 @@ static struct inet_protosw inetsw_array[] = .protocol = IPPROTO_TCP, .prot = &tcp_prot, .ops = &inet_stream_ops, - .capability = -1, .no_check = 0, .flags = INET_PROTOSW_PERMANENT | INET_PROTOSW_ICSK, @@ -958,7 +957,6 @@ static struct inet_protosw inetsw_array[] = .protocol = IPPROTO_UDP, .prot = &udp_prot, .ops = &inet_dgram_ops, - .capability = -1, .no_check = UDP_CSUM_DEFAULT, .flags = INET_PROTOSW_PERMANENT, }, @@ -969,7 +967,6 @@ static struct inet_protosw inetsw_array[] = .protocol = IPPROTO_IP, /* wild card */ .prot = &raw_prot, .ops = &inet_sockraw_ops, - .capability = CAP_NET_RAW, .no_check = UDP_CSUM_DEFAULT, .flags = INET_PROTOSW_REUSE, } diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c index 470c504b9554..66f79513f4a5 100644 --- a/net/ipv4/udplite.c +++ b/net/ipv4/udplite.c @@ -64,7 +64,6 @@ static struct inet_protosw udplite4_protosw = { .protocol = IPPROTO_UDPLITE, .prot = &udplite_prot, .ops = &inet_dgram_ops, - .capability = -1, .no_check = 0, /* must checksum (RFC 3828) */ .flags = INET_PROTOSW_PERMANENT, }; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 9105b25defe5..1b3889356599 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -158,7 +158,7 @@ lookup_protocol: } err = -EPERM; - if (answer->capability > 0 && !capable(answer->capability)) + if (sock->type == SOCK_RAW && !capable(CAP_NET_RAW)) goto out_rcu_unlock; sock->ops = answer->ops; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index cb834ab7f071..818ef21ba76d 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1336,7 +1336,6 @@ static struct inet_protosw rawv6_protosw = { .protocol = IPPROTO_IP, /* wild card */ .prot = &rawv6_prot, .ops = &inet6_sockraw_ops, - .capability = CAP_NET_RAW, .no_check = UDP_CSUM_DEFAULT, .flags = INET_PROTOSW_REUSE, }; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 34925f089e07..696a22f034e8 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -2112,7 +2112,6 @@ static struct inet_protosw tcpv6_protosw = { .protocol = IPPROTO_TCP, .prot = &tcpv6_prot, .ops = &inet6_stream_ops, - .capability = -1, .no_check = 0, .flags = INET_PROTOSW_PERMANENT | INET_PROTOSW_ICSK, diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index d3b59d73f507..bbe2f3e445fc 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1286,7 +1286,6 @@ static struct inet_protosw udpv6_protosw = { .protocol = IPPROTO_UDP, .prot = &udpv6_prot, .ops = &inet6_dgram_ops, - .capability =-1, .no_check = UDP_CSUM_DEFAULT, .flags = INET_PROTOSW_PERMANENT, }; diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c index d737a27ee010..6ea6938919e6 100644 --- a/net/ipv6/udplite.c +++ b/net/ipv6/udplite.c @@ -62,7 +62,6 @@ static struct inet_protosw udplite6_protosw = { .protocol = IPPROTO_UDPLITE, .prot = &udplitev6_prot, .ops = &inet6_dgram_ops, - .capability = -1, .no_check = 0, .flags = INET_PROTOSW_PERMANENT, }; diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index bb280e60e00a..bacd6a7318be 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -930,7 +930,6 @@ static struct inet_protosw sctpv6_seqpacket_protosw = { .protocol = IPPROTO_SCTP, .prot = &sctpv6_prot, .ops = &inet6_seqpacket_ops, - .capability = -1, .no_check = 0, .flags = SCTP_PROTOSW_FLAG }; @@ -939,7 +938,6 @@ static struct inet_protosw sctpv6_stream_protosw = { .protocol = IPPROTO_SCTP, .prot = &sctpv6_prot, .ops = &inet6_seqpacket_ops, - .capability = -1, .no_check = 0, .flags = SCTP_PROTOSW_FLAG, }; diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index fe44c57101de..08ef203d36ac 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -909,7 +909,6 @@ static struct inet_protosw sctp_seqpacket_protosw = { .protocol = IPPROTO_SCTP, .prot = &sctp_prot, .ops = &inet_seqpacket_ops, - .capability = -1, .no_check = 0, .flags = SCTP_PROTOSW_FLAG }; @@ -918,7 +917,6 @@ static struct inet_protosw sctp_stream_protosw = { .protocol = IPPROTO_SCTP, .prot = &sctp_prot, .ops = &inet_seqpacket_ops, - .capability = -1, .no_check = 0, .flags = SCTP_PROTOSW_FLAG }; -- cgit v1.2.3 From 3f378b684453f2a028eda463ce383370545d9cc9 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 5 Nov 2009 22:18:14 -0800 Subject: net: pass kern to net_proto_family create function The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- drivers/isdn/mISDN/socket.c | 2 +- drivers/net/pppox.c | 3 ++- include/linux/net.h | 3 ++- net/appletalk/ddp.c | 3 ++- net/atm/pvc.c | 3 ++- net/atm/svc.c | 7 ++++--- net/ax25/af_ax25.c | 3 ++- net/bluetooth/af_bluetooth.c | 5 +++-- net/bluetooth/bnep/sock.c | 3 ++- net/bluetooth/cmtp/sock.c | 3 ++- net/bluetooth/hci_sock.c | 3 ++- net/bluetooth/hidp/sock.c | 3 ++- net/bluetooth/l2cap.c | 3 ++- net/bluetooth/rfcomm/sock.c | 3 ++- net/bluetooth/sco.c | 3 ++- net/can/af_can.c | 3 ++- net/decnet/af_decnet.c | 3 ++- net/econet/af_econet.c | 3 ++- net/ieee802154/af_ieee802154.c | 2 +- net/ipv4/af_inet.c | 3 ++- net/ipv6/af_inet6.c | 3 ++- net/ipx/af_ipx.c | 3 ++- net/irda/af_irda.c | 7 ++++--- net/iucv/af_iucv.c | 3 ++- net/key/af_key.c | 3 ++- net/llc/af_llc.c | 5 ++++- net/netlink/af_netlink.c | 3 ++- net/netrom/af_netrom.c | 3 ++- net/packet/af_packet.c | 3 ++- net/phonet/af_phonet.c | 3 ++- net/rds/af_rds.c | 3 ++- net/rose/af_rose.c | 3 ++- net/rxrpc/af_rxrpc.c | 3 ++- net/socket.c | 2 +- net/tipc/socket.c | 6 ++++-- net/unix/af_unix.c | 3 ++- net/x25/af_x25.c | 3 ++- 37 files changed, 80 insertions(+), 43 deletions(-) (limited to 'include/linux') diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 28182ed8dea1..fcfe17a19a61 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -779,7 +779,7 @@ base_sock_create(struct net *net, struct socket *sock, int protocol) } static int -mISDN_sock_create(struct net *net, struct socket *sock, int proto) +mISDN_sock_create(struct net *net, struct socket *sock, int proto, int kern) { int err = -EPROTONOSUPPORT; diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c index c14ee24c05a8..ac806b27c658 100644 --- a/drivers/net/pppox.c +++ b/drivers/net/pppox.c @@ -104,7 +104,8 @@ int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) EXPORT_SYMBOL(pppox_ioctl); -static int pppox_create(struct net *net, struct socket *sock, int protocol) +static int pppox_create(struct net *net, struct socket *sock, int protocol, + int kern) { int rc = -EPROTOTYPE; diff --git a/include/linux/net.h b/include/linux/net.h index 4da9d571b053..70ee3c310f15 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -204,7 +204,8 @@ struct proto_ops { struct net_proto_family { int family; - int (*create)(struct net *net, struct socket *sock, int protocol); + int (*create)(struct net *net, struct socket *sock, + int protocol, int kern); struct module *owner; }; diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index abe38014b7fd..4b0ce2e2b46e 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1021,7 +1021,8 @@ static struct proto ddp_proto = { * Create a socket. Initialise the socket, blank the addresses * set the state. */ -static int atalk_create(struct net *net, struct socket *sock, int protocol) +static int atalk_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; int rc = -ESOCKTNOSUPPORT; diff --git a/net/atm/pvc.c b/net/atm/pvc.c index a6e1fdbae87f..8d74e62b0d79 100644 --- a/net/atm/pvc.c +++ b/net/atm/pvc.c @@ -127,7 +127,8 @@ static const struct proto_ops pvc_proto_ops = { }; -static int pvc_create(struct net *net, struct socket *sock,int protocol) +static int pvc_create(struct net *net, struct socket *sock, int protocol, + int kern) { if (net != &init_net) return -EAFNOSUPPORT; diff --git a/net/atm/svc.c b/net/atm/svc.c index 819354233318..c7395070ee78 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -25,7 +25,7 @@ #include "signaling.h" #include "addr.h" -static int svc_create(struct net *net, struct socket *sock,int protocol); +static int svc_create(struct net *net, struct socket *sock, int protocol, int kern); /* * Note: since all this is still nicely synchronized with the signaling demon, @@ -330,7 +330,7 @@ static int svc_accept(struct socket *sock,struct socket *newsock,int flags) lock_sock(sk); - error = svc_create(sock_net(sk), newsock,0); + error = svc_create(sock_net(sk), newsock, 0, 0); if (error) goto out; @@ -650,7 +650,8 @@ static const struct proto_ops svc_proto_ops = { }; -static int svc_create(struct net *net, struct socket *sock,int protocol) +static int svc_create(struct net *net, struct socket *sock, int protocol, + int kern) { int error; diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index f1e998b2796e..d6ddfa4c4471 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -799,7 +799,8 @@ static struct proto ax25_proto = { .obj_size = sizeof(struct sock), }; -static int ax25_create(struct net *net, struct socket *sock, int protocol) +static int ax25_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; ax25_cb *ax25; diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 399e59c9c6cb..087cc51f5927 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -126,7 +126,8 @@ int bt_sock_unregister(int proto) } EXPORT_SYMBOL(bt_sock_unregister); -static int bt_sock_create(struct net *net, struct socket *sock, int proto) +static int bt_sock_create(struct net *net, struct socket *sock, int proto, + int kern) { int err; @@ -144,7 +145,7 @@ static int bt_sock_create(struct net *net, struct socket *sock, int proto) read_lock(&bt_proto_lock); if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) { - err = bt_proto[proto]->create(net, sock, proto); + err = bt_proto[proto]->create(net, sock, proto, kern); bt_sock_reclassify_lock(sock, proto); module_put(bt_proto[proto]->owner); } diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c index 0a2c5460bb48..2ff6ac7b2ed4 100644 --- a/net/bluetooth/bnep/sock.c +++ b/net/bluetooth/bnep/sock.c @@ -195,7 +195,8 @@ static struct proto bnep_proto = { .obj_size = sizeof(struct bt_sock) }; -static int bnep_sock_create(struct net *net, struct socket *sock, int protocol) +static int bnep_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c index de7c8040bc56..978cc3a718ad 100644 --- a/net/bluetooth/cmtp/sock.c +++ b/net/bluetooth/cmtp/sock.c @@ -190,7 +190,8 @@ static struct proto cmtp_proto = { .obj_size = sizeof(struct bt_sock) }; -static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol) +static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index e7395f231989..1ca5c7ca9bd4 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -621,7 +621,8 @@ static struct proto hci_sk_proto = { .obj_size = sizeof(struct hci_pinfo) }; -static int hci_sock_create(struct net *net, struct socket *sock, int protocol) +static int hci_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c index 4beb6a7a2953..9cfef68b9fec 100644 --- a/net/bluetooth/hidp/sock.c +++ b/net/bluetooth/hidp/sock.c @@ -241,7 +241,8 @@ static struct proto hidp_proto = { .obj_size = sizeof(struct bt_sock) }; -static int hidp_sock_create(struct net *net, struct socket *sock, int protocol) +static int hidp_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index d65101d92ee5..365ae161d702 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -819,7 +819,8 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p return sk; } -static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol) +static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index d3bfc1b0afb1..4b5968dda673 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -323,7 +323,8 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int return sk; } -static int rfcomm_sock_create(struct net *net, struct socket *sock, int protocol) +static int rfcomm_sock_create(struct net *net, struct socket *sock, + int protocol, int kern) { struct sock *sk; diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 694a65541b73..dd8f6ec57dce 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -430,7 +430,8 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int pro return sk; } -static int sco_sock_create(struct net *net, struct socket *sock, int protocol) +static int sco_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/can/af_can.c b/net/can/af_can.c index 9c0426dc3184..833bd838edc6 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -114,7 +114,8 @@ static void can_sock_destruct(struct sock *sk) skb_queue_purge(&sk->sk_receive_queue); } -static int can_create(struct net *net, struct socket *sock, int protocol) +static int can_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct can_proto *cp; diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 2e355841ca99..9ade3a6de954 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -675,7 +675,8 @@ char *dn_addr2asc(__u16 addr, char *buf) -static int dn_create(struct net *net, struct socket *sock, int protocol) +static int dn_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index 5e9426a11c3e..596679803de5 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -605,7 +605,8 @@ static struct proto econet_proto = { * Create an Econet socket */ -static int econet_create(struct net *net, struct socket *sock, int protocol) +static int econet_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct econet_sock *eo; diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c index 309348fba72b..de6e34d2a7f8 100644 --- a/net/ieee802154/af_ieee802154.c +++ b/net/ieee802154/af_ieee802154.c @@ -234,7 +234,7 @@ static const struct proto_ops ieee802154_dgram_ops = { * set the state. */ static int ieee802154_create(struct net *net, struct socket *sock, - int protocol) + int protocol, int kern) { struct sock *sk; int rc; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 180ec4c94919..5c7e42c02afb 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -262,7 +262,8 @@ static inline int inet_netns_ok(struct net *net, int protocol) * Create an inet socket. */ -static int inet_create(struct net *net, struct socket *sock, int protocol) +static int inet_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct inet_protosw *answer; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 1b3889356599..45ed5e05ab32 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -95,7 +95,8 @@ static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk) return (struct ipv6_pinfo *)(((u8 *)sk) + offset); } -static int inet6_create(struct net *net, struct socket *sock, int protocol) +static int inet6_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct inet_sock *inet; struct ipv6_pinfo *np; diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index 6481ee4bdf72..96d193a24415 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1352,7 +1352,8 @@ static struct proto ipx_proto = { .obj_size = sizeof(struct ipx_sock), }; -static int ipx_create(struct net *net, struct socket *sock, int protocol) +static int ipx_create(struct net *net, struct socket *sock, int protocol, + int kern) { int rc = -ESOCKTNOSUPPORT; struct sock *sk; diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index 9429e4002bca..e73a0016c0aa 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -61,7 +61,7 @@ #include -static int irda_create(struct net *net, struct socket *sock, int protocol); +static int irda_create(struct net *net, struct socket *sock, int protocol, int kern); static const struct proto_ops irda_stream_ops; static const struct proto_ops irda_seqpacket_ops; @@ -839,7 +839,7 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags) IRDA_DEBUG(2, "%s()\n", __func__); - err = irda_create(sock_net(sk), newsock, sk->sk_protocol); + err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0); if (err) return err; @@ -1062,7 +1062,8 @@ static struct proto irda_proto = { * Create IrDA socket * */ -static int irda_create(struct net *net, struct socket *sock, int protocol) +static int irda_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct irda_sock *self; diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 3aebabb158a8..1e428863574f 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -481,7 +481,8 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio) } /* Create an IUCV socket */ -static int iucv_sock_create(struct net *net, struct socket *sock, int protocol) +static int iucv_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/key/af_key.c b/net/key/af_key.c index 472f6594184a..86b2c22d0918 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -177,7 +177,8 @@ static struct proto key_proto = { .obj_size = sizeof(struct pfkey_sock), }; -static int pfkey_create(struct net *net, struct socket *sock, int protocol) +static int pfkey_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id); struct sock *sk; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 4866b4fb0c27..5266c286b260 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -140,14 +140,17 @@ static struct proto llc_proto = { /** * llc_ui_create - alloc and init a new llc_ui socket + * @net: network namespace (must be default network) * @sock: Socket to initialize and attach allocated sk to. * @protocol: Unused. + * @kern: on behalf of kernel or userspace * * Allocate and initialize a new llc_ui socket, validate the user wants a * socket type we have available. * Returns 0 upon success, negative upon failure. */ -static int llc_ui_create(struct net *net, struct socket *sock, int protocol) +static int llc_ui_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; int rc = -ESOCKTNOSUPPORT; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 0cd2d8829313..aea805c98da3 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -428,7 +428,8 @@ static int __netlink_create(struct net *net, struct socket *sock, return 0; } -static int netlink_create(struct net *net, struct socket *sock, int protocol) +static int netlink_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct module *module = NULL; struct mutex *cb_mutex; diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 281fa597cae5..4bdd5697f63b 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -425,7 +425,8 @@ static struct proto nr_proto = { .obj_size = sizeof(struct nr_sock), }; -static int nr_create(struct net *net, struct socket *sock, int protocol) +static int nr_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct nr_sock *nr; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 91d246d34780..3304caa65347 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1344,7 +1344,8 @@ static struct proto packet_proto = { * Create a packet of type SOCK_PACKET. */ -static int packet_create(struct net *net, struct socket *sock, int protocol) +static int packet_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct packet_sock *po; diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 66737aa995ea..3bd1be6b26f0 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -60,7 +60,8 @@ static inline void phonet_proto_put(struct phonet_protocol *pp) /* protocol family functions */ -static int pn_socket_create(struct net *net, struct socket *sock, int protocol) +static int pn_socket_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct pn_sock *pn; diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index 2b978dc6e75d..e25d8d5ce8df 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -410,7 +410,8 @@ static int __rds_create(struct socket *sock, struct sock *sk, int protocol) return 0; } -static int rds_create(struct net *net, struct socket *sock, int protocol) +static int rds_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index c17734c2ce89..4de4287fec37 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -512,7 +512,8 @@ static struct proto rose_proto = { .obj_size = sizeof(struct rose_sock), }; -static int rose_create(struct net *net, struct socket *sock, int protocol) +static int rose_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct rose_sock *rose; diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 6817c9781ef3..f978d02a248a 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -608,7 +608,8 @@ static unsigned int rxrpc_poll(struct file *file, struct socket *sock, /* * create an RxRPC socket */ -static int rxrpc_create(struct net *net, struct socket *sock, int protocol) +static int rxrpc_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct rxrpc_sock *rx; struct sock *sk; diff --git a/net/socket.c b/net/socket.c index 9dff31c9b799..4f3e0f0c156b 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1252,7 +1252,7 @@ static int __sock_create(struct net *net, int family, int type, int protocol, /* Now protected by module ref count */ rcu_read_unlock(); - err = pf->create(net, sock, protocol); + err = pf->create(net, sock, protocol, kern); if (err < 0) goto out_module_put; diff --git a/net/tipc/socket.c b/net/tipc/socket.c index e6d9abf7440e..d00c2119faf3 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -177,6 +177,7 @@ static void reject_rx_queue(struct sock *sk) * @net: network namespace (must be default network) * @sock: pre-allocated socket structure * @protocol: protocol indicator (must be 0) + * @kern: caused by kernel or by userspace? * * This routine creates additional data structures used by the TIPC socket, * initializes them, and links them together. @@ -184,7 +185,8 @@ static void reject_rx_queue(struct sock *sk) * Returns 0 on success, errno otherwise */ -static int tipc_create(struct net *net, struct socket *sock, int protocol) +static int tipc_create(struct net *net, struct socket *sock, int protocol, + int kern) { const struct proto_ops *ops; socket_state state; @@ -1528,7 +1530,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) buf = skb_peek(&sk->sk_receive_queue); - res = tipc_create(sock_net(sock->sk), new_sock, 0); + res = tipc_create(sock_net(sock->sk), new_sock, 0, 0); if (!res) { struct sock *new_sk = new_sock->sk; struct tipc_sock *new_tsock = tipc_sk(new_sk); diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 3291902f0b88..178d3af2a605 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -621,7 +621,8 @@ out: return sk; } -static int unix_create(struct net *net, struct socket *sock, int protocol) +static int unix_create(struct net *net, struct socket *sock, int protocol, + int kern) { if (protocol && protocol != PF_UNIX) return -EPROTONOSUPPORT; diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index e19d811788a5..38e235f61e27 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -501,7 +501,8 @@ out: return sk; } -static int x25_create(struct net *net, struct socket *sock, int protocol) +static int x25_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct x25_sock *x25; -- cgit v1.2.3 From 1eaa9d03d3ee9156c8c405b006ce892ae28290ad Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Tue, 15 Sep 2009 17:04:44 +0400 Subject: ieee802154: add LIST_PHY command support Add nl802154 command to get information about PHY's present in the system. Signed-off-by: Dmitry Eremin-Solenikov --- include/linux/nl802154.h | 4 + net/ieee802154/Makefile | 2 +- net/ieee802154/netlink.c | 4 + net/ieee802154/nl-phy.c | 188 +++++++++++++++++++++++++++++++++++++++++++++ net/ieee802154/nl_policy.c | 2 + 5 files changed, 199 insertions(+), 1 deletion(-) create mode 100644 net/ieee802154/nl-phy.c (limited to 'include/linux') diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h index b7d9435d5a9f..275fd94f4727 100644 --- a/include/linux/nl802154.h +++ b/include/linux/nl802154.h @@ -65,6 +65,9 @@ enum { IEEE802154_ATTR_SEC, IEEE802154_ATTR_PAGE, + IEEE802154_ATTR_CHANNEL_PAGE_LIST, + + IEEE802154_ATTR_PHY_NAME, __IEEE802154_ATTR_MAX, }; @@ -114,6 +117,7 @@ enum { IEEE802154_RX_ENABLE_CONF, /* Not supported yet */ IEEE802154_LIST_IFACE, + IEEE802154_LIST_PHY, __IEEE802154_CMD_MAX, }; diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile index 69af9f6a404b..ce2d33582859 100644 --- a/net/ieee802154/Makefile +++ b/net/ieee802154/Makefile @@ -1,5 +1,5 @@ obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o -ieee802154-y := netlink.o nl-mac.o nl_policy.o wpan-class.o +ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o wpan-class.o af_802154-y := af_ieee802154.o raw.o dgram.o ccflags-y += -Wall -DDEBUG diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c index 5b738ec7d9f1..8a221737f75c 100644 --- a/net/ieee802154/netlink.c +++ b/net/ieee802154/netlink.c @@ -87,6 +87,10 @@ int __init ieee802154_nl_init(void) if (rc) goto fail; + rc = nl802154_phy_register(); + if (rc) + goto fail; + return 0; fail: diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c new file mode 100644 index 000000000000..b7af722eb784 --- /dev/null +++ b/net/ieee802154/nl-phy.c @@ -0,0 +1,188 @@ +/* + * Netlink inteface for IEEE 802.15.4 stack + * + * Copyright 2007, 2008 Siemens AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Written by: + * Sergey Lapin + * Dmitry Eremin-Solenikov + * Maxim Osipov + */ + +#include +#include +#include +#include +#include + +#include "ieee802154.h" + +static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 pid, + u32 seq, int flags, struct wpan_phy *phy) +{ + void *hdr; + int i, pages = 0; + uint32_t *buf = kzalloc(32 * sizeof(uint32_t), GFP_KERNEL); + + pr_debug("%s\n", __func__); + + if (!buf) + goto out; + + hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, + IEEE802154_LIST_PHY); + if (!hdr) + goto out; + + mutex_lock(&phy->pib_lock); + NLA_PUT_STRING(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)); + + NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, phy->current_page); + NLA_PUT_U8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel); + for (i = 0; i < 32; i++) { + if (phy->channels_supported[i]) + buf[pages++] = phy->channels_supported[i] | (i << 27); + } + if (pages) + NLA_PUT(msg, IEEE802154_ATTR_CHANNEL_PAGE_LIST, + pages * sizeof(uint32_t), buf); + + mutex_unlock(&phy->pib_lock); + return genlmsg_end(msg, hdr); + +nla_put_failure: + mutex_unlock(&phy->pib_lock); + genlmsg_cancel(msg, hdr); +out: + kfree(buf); + return -EMSGSIZE; +} + +static int ieee802154_list_phy(struct sk_buff *skb, + struct genl_info *info) +{ + /* Request for interface name, index, type, IEEE address, + PAN Id, short address */ + struct sk_buff *msg; + struct wpan_phy *phy; + const char *name; + int rc = -ENOBUFS; + + pr_debug("%s\n", __func__); + + if (!info->attrs[IEEE802154_ATTR_PHY_NAME]) + return -EINVAL; + + name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); + if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') + return -EINVAL; /* phy name should be null-terminated */ + + + phy = wpan_phy_find(name); + if (!phy) + return -ENODEV; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + goto out_dev; + + rc = ieee802154_nl_fill_phy(msg, info->snd_pid, info->snd_seq, + 0, phy); + if (rc < 0) + goto out_free; + + wpan_phy_put(phy); + + return genlmsg_reply(msg, info); +out_free: + nlmsg_free(msg); +out_dev: + wpan_phy_put(phy); + return rc; + +} + +struct dump_phy_data { + struct sk_buff *skb; + struct netlink_callback *cb; + int idx, s_idx; +}; + +static int ieee802154_dump_phy_iter(struct wpan_phy *phy, void *_data) +{ + int rc; + struct dump_phy_data *data = _data; + + pr_debug("%s\n", __func__); + + if (data->idx++ < data->s_idx) + return 0; + + rc = ieee802154_nl_fill_phy(data->skb, + NETLINK_CB(data->cb->skb).pid, + data->cb->nlh->nlmsg_seq, + NLM_F_MULTI, + phy); + + if (rc < 0) { + data->idx--; + return rc; + } + + return 0; +} + +static int ieee802154_dump_phy(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct dump_phy_data data = { + .cb = cb, + .skb = skb, + .s_idx = cb->args[0], + .idx = 0, + }; + + pr_debug("%s\n", __func__); + + wpan_phy_for_each(ieee802154_dump_phy_iter, &data); + + cb->args[0] = data.idx; + + return skb->len; +} + +static struct genl_ops ieee802154_phy_ops[] = { + IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy, + ieee802154_dump_phy), +}; + +/* + * No need to unregister as family unregistration will do it. + */ +int nl802154_phy_register(void) +{ + int i; + int rc; + + for (i = 0; i < ARRAY_SIZE(ieee802154_phy_ops); i++) { + rc = genl_register_ops(&nl802154_family, + &ieee802154_phy_ops[i]); + if (rc) + return rc; + } + + return 0; +} diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c index 2363ebee02e7..6adda4d46f95 100644 --- a/net/ieee802154/nl_policy.c +++ b/net/ieee802154/nl_policy.c @@ -27,6 +27,7 @@ const struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = { [IEEE802154_ATTR_DEV_NAME] = { .type = NLA_STRING, }, [IEEE802154_ATTR_DEV_INDEX] = { .type = NLA_U32, }, + [IEEE802154_ATTR_PHY_NAME] = { .type = NLA_STRING, }, [IEEE802154_ATTR_STATUS] = { .type = NLA_U8, }, [IEEE802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, @@ -50,5 +51,6 @@ const struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = { [IEEE802154_ATTR_CHANNELS] = { .type = NLA_U32, }, [IEEE802154_ATTR_DURATION] = { .type = NLA_U8, }, [IEEE802154_ATTR_ED_LIST] = { .len = 27 }, + [IEEE802154_ATTR_CHANNEL_PAGE_LIST] = { .len = 32 * 4, }, }; -- cgit v1.2.3 From bb1cafb8fc414d6dbe933f888df6540c2ef02101 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 5 Nov 2009 16:56:23 +0300 Subject: ieee802154: add support for creation/removal of logic interfaces Add support for two more NL802154 commands: ADD_IFACE and DEL_IFACE, thus allowing creation and removal of logic WPAN interfaces on the top of wpan-phy. Signed-off-by: Dmitry Eremin-Solenikov --- include/linux/nl802154.h | 2 + include/net/wpan-phy.h | 4 ++ net/ieee802154/nl-phy.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 162 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h index 275fd94f4727..33d9f5175109 100644 --- a/include/linux/nl802154.h +++ b/include/linux/nl802154.h @@ -118,6 +118,8 @@ enum { IEEE802154_LIST_IFACE, IEEE802154_LIST_PHY, + IEEE802154_ADD_IFACE, + IEEE802154_DEL_IFACE, __IEEE802154_CMD_MAX, }; diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h index a65e98509fbc..85926231c07a 100644 --- a/include/net/wpan-phy.h +++ b/include/net/wpan-phy.h @@ -41,6 +41,10 @@ struct wpan_phy { struct device dev; int idx; + struct net_device *(*add_iface)(struct wpan_phy *phy, + const char *name); + void (*del_iface)(struct wpan_phy *phy, struct net_device *dev); + char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); }; diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c index b7af722eb784..199a2d9d12f9 100644 --- a/net/ieee802154/nl-phy.c +++ b/net/ieee802154/nl-phy.c @@ -26,6 +26,9 @@ #include #include #include +#include +#include +#include /* for rtnl_{un,}lock */ #include #include "ieee802154.h" @@ -164,9 +167,162 @@ static int ieee802154_dump_phy(struct sk_buff *skb, return skb->len; } +static int ieee802154_add_iface(struct sk_buff *skb, + struct genl_info *info) +{ + struct sk_buff *msg; + struct wpan_phy *phy; + const char *name; + const char *devname; + int rc = -ENOBUFS; + struct net_device *dev; + + pr_debug("%s\n", __func__); + + if (!info->attrs[IEEE802154_ATTR_PHY_NAME]) + return -EINVAL; + + name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); + if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') + return -EINVAL; /* phy name should be null-terminated */ + + if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { + devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); + if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] + != '\0') + return -EINVAL; /* phy name should be null-terminated */ + } else { + devname = "wpan%d"; + } + + if (strlen(devname) >= IFNAMSIZ) + return -ENAMETOOLONG; + + phy = wpan_phy_find(name); + if (!phy) + return -ENODEV; + + msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE); + if (!msg) + goto out_dev; + + if (!phy->add_iface) { + rc = -EINVAL; + goto nla_put_failure; + } + + dev = phy->add_iface(phy, devname); + if (IS_ERR(dev)) { + rc = PTR_ERR(dev); + goto nla_put_failure; + } + + NLA_PUT_STRING(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)); + NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); + + dev_put(dev); + + wpan_phy_put(phy); + + return ieee802154_nl_reply(msg, info); + +nla_put_failure: + nlmsg_free(msg); +out_dev: + wpan_phy_put(phy); + return rc; +} + +static int ieee802154_del_iface(struct sk_buff *skb, + struct genl_info *info) +{ + struct sk_buff *msg; + struct wpan_phy *phy; + const char *name; + int rc; + struct net_device *dev; + + pr_debug("%s\n", __func__); + + if (!info->attrs[IEEE802154_ATTR_DEV_NAME]) + return -EINVAL; + + name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); + if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') + return -EINVAL; /* name should be null-terminated */ + + dev = dev_get_by_name(genl_info_net(info), name); + if (!dev) + return -ENODEV; + + phy = ieee802154_mlme_ops(dev)->get_phy(dev); + BUG_ON(!phy); + + rc = -EINVAL; + /* phy name is optional, but should be checked if it's given */ + if (info->attrs[IEEE802154_ATTR_PHY_NAME]) { + struct wpan_phy *phy2; + + const char *pname = + nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); + if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] + != '\0') + /* name should be null-terminated */ + goto out_dev; + + phy2 = wpan_phy_find(pname); + if (!phy2) + goto out_dev; + + if (phy != phy2) { + wpan_phy_put(phy2); + goto out_dev; + } + } + + rc = -ENOBUFS; + + msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE); + if (!msg) + goto out_dev; + + if (!phy->del_iface) { + rc = -EINVAL; + goto nla_put_failure; + } + + rtnl_lock(); + phy->del_iface(phy, dev); + + /* We don't have device anymore */ + dev_put(dev); + dev = NULL; + + rtnl_unlock(); + + + NLA_PUT_STRING(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)); + NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, name); + + wpan_phy_put(phy); + + return ieee802154_nl_reply(msg, info); + +nla_put_failure: + nlmsg_free(msg); +out_dev: + wpan_phy_put(phy); + if (dev) + dev_put(dev); + + return rc; +} + static struct genl_ops ieee802154_phy_ops[] = { IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy, ieee802154_dump_phy), + IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface), + IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface), }; /* -- cgit v1.2.3 From 2dceba14ef0e62738d58777a1bd4018130d47a74 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 6 Nov 2009 08:09:03 +0000 Subject: compat: add struct compat_ifreq etc to compat.h In order to move socket ioctl conversion code into multiple places in the socket code, we need a common defintion of the data structures it uses. Also change the name from ifreq32 to compat_ifreq to follow the naming convention for compat.h Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- include/linux/compat.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'include/linux') diff --git a/include/linux/compat.h b/include/linux/compat.h index af931ee43dd8..8311d2e29632 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -10,6 +10,8 @@ #include #include /* for HZ */ #include +#include +#include #include #include @@ -154,6 +156,43 @@ typedef struct compat_sigevent { } _sigev_un; } compat_sigevent_t; +struct compat_ifmap { + compat_ulong_t mem_start; + compat_ulong_t mem_end; + unsigned short base_addr; + unsigned char irq; + unsigned char dma; + unsigned char port; +}; + +struct compat_ifreq { +#define IFHWADDRLEN 6 +#define IFNAMSIZ 16 + union { + char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + } ifr_ifrn; + union { + struct sockaddr ifru_addr; + struct sockaddr ifru_dstaddr; + struct sockaddr ifru_broadaddr; + struct sockaddr ifru_netmask; + struct sockaddr ifru_hwaddr; + short ifru_flags; + compat_int_t ifru_ivalue; + compat_int_t ifru_mtu; + struct compat_ifmap ifru_map; + char ifru_slave[IFNAMSIZ]; /* Just fits the size */ + char ifru_newname[IFNAMSIZ]; + compat_caddr_t ifru_data; + /* XXXX? ifru_settings should be here */ + } ifr_ifru; +}; + +struct compat_ifconf { + compat_int_t ifc_len; /* size of buffer */ + compat_caddr_t ifcbuf; +}; + struct compat_robust_list { compat_uptr_t next; }; -- cgit v1.2.3 From b622d97a63ad4ce890b625c62acd1bb894592e63 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 6 Nov 2009 20:46:52 -0800 Subject: net: compat: No need to define IFHWADDRLEN and IFNAMSIZ twice. It's defined colloqually in linux/if.h and linux/compat.h includes that. Signed-off-by: David S. Miller --- include/linux/compat.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/compat.h b/include/linux/compat.h index 8311d2e29632..224c7a896172 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -166,8 +166,6 @@ struct compat_ifmap { }; struct compat_ifreq { -#define IFHWADDRLEN 6 -#define IFNAMSIZ 16 union { char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ } ifr_ifrn; -- cgit v1.2.3 From b215c57dcc847b15693899d26aa0ee4669dacefb Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 5 Nov 2009 04:37:30 +0000 Subject: net: kill proto_ops wrapper All users of wrapped proto_ops are now gone, so we can safely remove the wrappers as well. Cc: David S. Miller Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- include/linux/net.h | 83 ----------------------------------------------------- 1 file changed, 83 deletions(-) (limited to 'include/linux') diff --git a/include/linux/net.h b/include/linux/net.h index 70ee3c310f15..6ce87663551c 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -268,89 +268,6 @@ extern int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg); extern int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how); -#ifndef CONFIG_SMP -#define SOCKOPS_WRAPPED(name) name -#define SOCKOPS_WRAP(name, fam) -#else - -#define SOCKOPS_WRAPPED(name) __unlocked_##name - -#define SOCKCALL_WRAP(name, call, parms, args) \ -static int __lock_##name##_##call parms \ -{ \ - int ret; \ - lock_kernel(); \ - ret = __unlocked_##name##_ops.call args ;\ - unlock_kernel(); \ - return ret; \ -} - -#define SOCKCALL_UWRAP(name, call, parms, args) \ -static unsigned int __lock_##name##_##call parms \ -{ \ - int ret; \ - lock_kernel(); \ - ret = __unlocked_##name##_ops.call args ;\ - unlock_kernel(); \ - return ret; \ -} - - -#define SOCKOPS_WRAP(name, fam) \ -SOCKCALL_WRAP(name, release, (struct socket *sock), (sock)) \ -SOCKCALL_WRAP(name, bind, (struct socket *sock, struct sockaddr *uaddr, int addr_len), \ - (sock, uaddr, addr_len)) \ -SOCKCALL_WRAP(name, connect, (struct socket *sock, struct sockaddr * uaddr, \ - int addr_len, int flags), \ - (sock, uaddr, addr_len, flags)) \ -SOCKCALL_WRAP(name, socketpair, (struct socket *sock1, struct socket *sock2), \ - (sock1, sock2)) \ -SOCKCALL_WRAP(name, accept, (struct socket *sock, struct socket *newsock, \ - int flags), (sock, newsock, flags)) \ -SOCKCALL_WRAP(name, getname, (struct socket *sock, struct sockaddr *uaddr, \ - int *addr_len, int peer), (sock, uaddr, addr_len, peer)) \ -SOCKCALL_UWRAP(name, poll, (struct file *file, struct socket *sock, struct poll_table_struct *wait), \ - (file, sock, wait)) \ -SOCKCALL_WRAP(name, ioctl, (struct socket *sock, unsigned int cmd, \ - unsigned long arg), (sock, cmd, arg)) \ -SOCKCALL_WRAP(name, compat_ioctl, (struct socket *sock, unsigned int cmd, \ - unsigned long arg), (sock, cmd, arg)) \ -SOCKCALL_WRAP(name, listen, (struct socket *sock, int len), (sock, len)) \ -SOCKCALL_WRAP(name, shutdown, (struct socket *sock, int flags), (sock, flags)) \ -SOCKCALL_WRAP(name, setsockopt, (struct socket *sock, int level, int optname, \ - char __user *optval, unsigned int optlen), (sock, level, optname, optval, optlen)) \ -SOCKCALL_WRAP(name, getsockopt, (struct socket *sock, int level, int optname, \ - char __user *optval, int __user *optlen), (sock, level, optname, optval, optlen)) \ -SOCKCALL_WRAP(name, sendmsg, (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len), \ - (iocb, sock, m, len)) \ -SOCKCALL_WRAP(name, recvmsg, (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len, int flags), \ - (iocb, sock, m, len, flags)) \ -SOCKCALL_WRAP(name, mmap, (struct file *file, struct socket *sock, struct vm_area_struct *vma), \ - (file, sock, vma)) \ - \ -static const struct proto_ops name##_ops = { \ - .family = fam, \ - .owner = THIS_MODULE, \ - .release = __lock_##name##_release, \ - .bind = __lock_##name##_bind, \ - .connect = __lock_##name##_connect, \ - .socketpair = __lock_##name##_socketpair, \ - .accept = __lock_##name##_accept, \ - .getname = __lock_##name##_getname, \ - .poll = __lock_##name##_poll, \ - .ioctl = __lock_##name##_ioctl, \ - .compat_ioctl = __lock_##name##_compat_ioctl, \ - .listen = __lock_##name##_listen, \ - .shutdown = __lock_##name##_shutdown, \ - .setsockopt = __lock_##name##_setsockopt, \ - .getsockopt = __lock_##name##_getsockopt, \ - .sendmsg = __lock_##name##_sendmsg, \ - .recvmsg = __lock_##name##_recvmsg, \ - .mmap = __lock_##name##_mmap, \ -}; - -#endif - #define MODULE_ALIAS_NETPROTO(proto) \ MODULE_ALIAS("net-pf-" __stringify(proto)) -- cgit v1.2.3 From e0000163e30eeb112b41486ea113fd54f64e1f17 Mon Sep 17 00:00:00 2001 From: Christian Pellegrin Date: Mon, 2 Nov 2009 23:07:00 +0000 Subject: can: Driver for the Microchip MCP251x SPI CAN controllers Signed-off-by: Christian Pellegrin Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller --- drivers/net/can/Kconfig | 6 + drivers/net/can/Makefile | 1 + drivers/net/can/mcp251x.c | 1164 ++++++++++++++++++++++++++++++++++ include/linux/can/platform/mcp251x.h | 36 ++ 4 files changed, 1207 insertions(+) create mode 100644 drivers/net/can/mcp251x.c create mode 100644 include/linux/can/platform/mcp251x.h (limited to 'include/linux') diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index 26d77cc0ded7..b819cc2a429e 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -102,6 +102,12 @@ config CAN_TI_HECC Driver for TI HECC (High End CAN Controller) module found on many TI devices. The device specifications are available from www.ti.com +config CAN_MCP251X + tristate "Microchip MCP251x SPI CAN controllers" + depends on CAN_DEV && SPI + ---help--- + Driver for the Microchip MCP251x SPI CAN controllers. + config CAN_DEBUG_DEVICES bool "CAN devices debugging messages" depends on CAN diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile index 31f4ab5df28b..14891817ea5b 100644 --- a/drivers/net/can/Makefile +++ b/drivers/net/can/Makefile @@ -12,5 +12,6 @@ obj-y += usb/ obj-$(CONFIG_CAN_SJA1000) += sja1000/ obj-$(CONFIG_CAN_AT91) += at91_can.o obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o +obj-$(CONFIG_CAN_MCP251X) += mcp251x.o ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c new file mode 100644 index 000000000000..8f48f4b50b7c --- /dev/null +++ b/drivers/net/can/mcp251x.c @@ -0,0 +1,1164 @@ +/* + * CAN bus driver for Microchip 251x CAN Controller with SPI Interface + * + * MCP2510 support and bug fixes by Christian Pellegrin + * + * + * Copyright 2009 Christian Pellegrin EVOL S.r.l. + * + * Copyright 2007 Raymarine UK, Ltd. All Rights Reserved. + * Written under contract by: + * Chris Elston, Katalix Systems, Ltd. + * + * Based on Microchip MCP251x CAN controller driver written by + * David Vrabel, Copyright 2006 Arcom Control Systems Ltd. + * + * Based on CAN bus driver for the CCAN controller written by + * - Sascha Hauer, Marc Kleine-Budde, Pengutronix + * - Simon Kallweit, intefo AG + * Copyright 2007 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License + * as published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + * + * Your platform definition file should specify something like: + * + * static struct mcp251x_platform_data mcp251x_info = { + * .oscillator_frequency = 8000000, + * .board_specific_setup = &mcp251x_setup, + * .model = CAN_MCP251X_MCP2510, + * .power_enable = mcp251x_power_enable, + * .transceiver_enable = NULL, + * }; + * + * static struct spi_board_info spi_board_info[] = { + * { + * .modalias = "mcp251x", + * .platform_data = &mcp251x_info, + * .irq = IRQ_EINT13, + * .max_speed_hz = 2*1000*1000, + * .chip_select = 2, + * }, + * }; + * + * Please see mcp251x.h for a description of the fields in + * struct mcp251x_platform_data. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* SPI interface instruction set */ +#define INSTRUCTION_WRITE 0x02 +#define INSTRUCTION_READ 0x03 +#define INSTRUCTION_BIT_MODIFY 0x05 +#define INSTRUCTION_LOAD_TXB(n) (0x40 + 2 * (n)) +#define INSTRUCTION_READ_RXB(n) (((n) == 0) ? 0x90 : 0x94) +#define INSTRUCTION_RESET 0xC0 + +/* MPC251x registers */ +#define CANSTAT 0x0e +#define CANCTRL 0x0f +# define CANCTRL_REQOP_MASK 0xe0 +# define CANCTRL_REQOP_CONF 0x80 +# define CANCTRL_REQOP_LISTEN_ONLY 0x60 +# define CANCTRL_REQOP_LOOPBACK 0x40 +# define CANCTRL_REQOP_SLEEP 0x20 +# define CANCTRL_REQOP_NORMAL 0x00 +# define CANCTRL_OSM 0x08 +# define CANCTRL_ABAT 0x10 +#define TEC 0x1c +#define REC 0x1d +#define CNF1 0x2a +# define CNF1_SJW_SHIFT 6 +#define CNF2 0x29 +# define CNF2_BTLMODE 0x80 +# define CNF2_SAM 0x40 +# define CNF2_PS1_SHIFT 3 +#define CNF3 0x28 +# define CNF3_SOF 0x08 +# define CNF3_WAKFIL 0x04 +# define CNF3_PHSEG2_MASK 0x07 +#define CANINTE 0x2b +# define CANINTE_MERRE 0x80 +# define CANINTE_WAKIE 0x40 +# define CANINTE_ERRIE 0x20 +# define CANINTE_TX2IE 0x10 +# define CANINTE_TX1IE 0x08 +# define CANINTE_TX0IE 0x04 +# define CANINTE_RX1IE 0x02 +# define CANINTE_RX0IE 0x01 +#define CANINTF 0x2c +# define CANINTF_MERRF 0x80 +# define CANINTF_WAKIF 0x40 +# define CANINTF_ERRIF 0x20 +# define CANINTF_TX2IF 0x10 +# define CANINTF_TX1IF 0x08 +# define CANINTF_TX0IF 0x04 +# define CANINTF_RX1IF 0x02 +# define CANINTF_RX0IF 0x01 +#define EFLG 0x2d +# define EFLG_EWARN 0x01 +# define EFLG_RXWAR 0x02 +# define EFLG_TXWAR 0x04 +# define EFLG_RXEP 0x08 +# define EFLG_TXEP 0x10 +# define EFLG_TXBO 0x20 +# define EFLG_RX0OVR 0x40 +# define EFLG_RX1OVR 0x80 +#define TXBCTRL(n) (((n) * 0x10) + 0x30 + TXBCTRL_OFF) +# define TXBCTRL_ABTF 0x40 +# define TXBCTRL_MLOA 0x20 +# define TXBCTRL_TXERR 0x10 +# define TXBCTRL_TXREQ 0x08 +#define TXBSIDH(n) (((n) * 0x10) + 0x30 + TXBSIDH_OFF) +# define SIDH_SHIFT 3 +#define TXBSIDL(n) (((n) * 0x10) + 0x30 + TXBSIDL_OFF) +# define SIDL_SID_MASK 7 +# define SIDL_SID_SHIFT 5 +# define SIDL_EXIDE_SHIFT 3 +# define SIDL_EID_SHIFT 16 +# define SIDL_EID_MASK 3 +#define TXBEID8(n) (((n) * 0x10) + 0x30 + TXBEID8_OFF) +#define TXBEID0(n) (((n) * 0x10) + 0x30 + TXBEID0_OFF) +#define TXBDLC(n) (((n) * 0x10) + 0x30 + TXBDLC_OFF) +# define DLC_RTR_SHIFT 6 +#define TXBCTRL_OFF 0 +#define TXBSIDH_OFF 1 +#define TXBSIDL_OFF 2 +#define TXBEID8_OFF 3 +#define TXBEID0_OFF 4 +#define TXBDLC_OFF 5 +#define TXBDAT_OFF 6 +#define RXBCTRL(n) (((n) * 0x10) + 0x60 + RXBCTRL_OFF) +# define RXBCTRL_BUKT 0x04 +# define RXBCTRL_RXM0 0x20 +# define RXBCTRL_RXM1 0x40 +#define RXBSIDH(n) (((n) * 0x10) + 0x60 + RXBSIDH_OFF) +# define RXBSIDH_SHIFT 3 +#define RXBSIDL(n) (((n) * 0x10) + 0x60 + RXBSIDL_OFF) +# define RXBSIDL_IDE 0x08 +# define RXBSIDL_EID 3 +# define RXBSIDL_SHIFT 5 +#define RXBEID8(n) (((n) * 0x10) + 0x60 + RXBEID8_OFF) +#define RXBEID0(n) (((n) * 0x10) + 0x60 + RXBEID0_OFF) +#define RXBDLC(n) (((n) * 0x10) + 0x60 + RXBDLC_OFF) +# define RXBDLC_LEN_MASK 0x0f +# define RXBDLC_RTR 0x40 +#define RXBCTRL_OFF 0 +#define RXBSIDH_OFF 1 +#define RXBSIDL_OFF 2 +#define RXBEID8_OFF 3 +#define RXBEID0_OFF 4 +#define RXBDLC_OFF 5 +#define RXBDAT_OFF 6 + +#define GET_BYTE(val, byte) \ + (((val) >> ((byte) * 8)) & 0xff) +#define SET_BYTE(val, byte) \ + (((val) & 0xff) << ((byte) * 8)) + +/* + * Buffer size required for the largest SPI transfer (i.e., reading a + * frame) + */ +#define CAN_FRAME_MAX_DATA_LEN 8 +#define SPI_TRANSFER_BUF_LEN (6 + CAN_FRAME_MAX_DATA_LEN) +#define CAN_FRAME_MAX_BITS 128 + +#define TX_ECHO_SKB_MAX 1 + +#define DEVICE_NAME "mcp251x" + +static int mcp251x_enable_dma; /* Enable SPI DMA. Default: 0 (Off) */ +module_param(mcp251x_enable_dma, int, S_IRUGO); +MODULE_PARM_DESC(mcp251x_enable_dma, "Enable SPI DMA. Default: 0 (Off)"); + +static struct can_bittiming_const mcp251x_bittiming_const = { + .name = DEVICE_NAME, + .tseg1_min = 3, + .tseg1_max = 16, + .tseg2_min = 2, + .tseg2_max = 8, + .sjw_max = 4, + .brp_min = 1, + .brp_max = 64, + .brp_inc = 1, +}; + +struct mcp251x_priv { + struct can_priv can; + struct net_device *net; + struct spi_device *spi; + + struct mutex spi_lock; /* SPI buffer lock */ + u8 *spi_tx_buf; + u8 *spi_rx_buf; + dma_addr_t spi_tx_dma; + dma_addr_t spi_rx_dma; + + struct sk_buff *tx_skb; + int tx_len; + struct workqueue_struct *wq; + struct work_struct tx_work; + struct work_struct irq_work; + struct completion awake; + int wake; + int force_quit; + int after_suspend; +#define AFTER_SUSPEND_UP 1 +#define AFTER_SUSPEND_DOWN 2 +#define AFTER_SUSPEND_POWER 4 +#define AFTER_SUSPEND_RESTART 8 + int restart_tx; +}; + +static void mcp251x_clean(struct net_device *net) +{ + struct mcp251x_priv *priv = netdev_priv(net); + + net->stats.tx_errors++; + if (priv->tx_skb) + dev_kfree_skb(priv->tx_skb); + if (priv->tx_len) + can_free_echo_skb(priv->net, 0); + priv->tx_skb = NULL; + priv->tx_len = 0; +} + +/* + * Note about handling of error return of mcp251x_spi_trans: accessing + * registers via SPI is not really different conceptually than using + * normal I/O assembler instructions, although it's much more + * complicated from a practical POV. So it's not advisable to always + * check the return value of this function. Imagine that every + * read{b,l}, write{b,l} and friends would be bracketed in "if ( < 0) + * error();", it would be a great mess (well there are some situation + * when exception handling C++ like could be useful after all). So we + * just check that transfers are OK at the beginning of our + * conversation with the chip and to avoid doing really nasty things + * (like injecting bogus packets in the network stack). + */ +static int mcp251x_spi_trans(struct spi_device *spi, int len) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + struct spi_transfer t = { + .tx_buf = priv->spi_tx_buf, + .rx_buf = priv->spi_rx_buf, + .len = len, + .cs_change = 0, + }; + struct spi_message m; + int ret; + + spi_message_init(&m); + + if (mcp251x_enable_dma) { + t.tx_dma = priv->spi_tx_dma; + t.rx_dma = priv->spi_rx_dma; + m.is_dma_mapped = 1; + } + + spi_message_add_tail(&t, &m); + + ret = spi_sync(spi, &m); + if (ret) + dev_err(&spi->dev, "spi transfer failed: ret = %d\n", ret); + return ret; +} + +static u8 mcp251x_read_reg(struct spi_device *spi, uint8_t reg) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + u8 val = 0; + + mutex_lock(&priv->spi_lock); + + priv->spi_tx_buf[0] = INSTRUCTION_READ; + priv->spi_tx_buf[1] = reg; + + mcp251x_spi_trans(spi, 3); + val = priv->spi_rx_buf[2]; + + mutex_unlock(&priv->spi_lock); + + return val; +} + +static void mcp251x_write_reg(struct spi_device *spi, u8 reg, uint8_t val) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + + mutex_lock(&priv->spi_lock); + + priv->spi_tx_buf[0] = INSTRUCTION_WRITE; + priv->spi_tx_buf[1] = reg; + priv->spi_tx_buf[2] = val; + + mcp251x_spi_trans(spi, 3); + + mutex_unlock(&priv->spi_lock); +} + +static void mcp251x_write_bits(struct spi_device *spi, u8 reg, + u8 mask, uint8_t val) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + + mutex_lock(&priv->spi_lock); + + priv->spi_tx_buf[0] = INSTRUCTION_BIT_MODIFY; + priv->spi_tx_buf[1] = reg; + priv->spi_tx_buf[2] = mask; + priv->spi_tx_buf[3] = val; + + mcp251x_spi_trans(spi, 4); + + mutex_unlock(&priv->spi_lock); +} + +static void mcp251x_hw_tx_frame(struct spi_device *spi, u8 *buf, + int len, int tx_buf_idx) +{ + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + + if (pdata->model == CAN_MCP251X_MCP2510) { + int i; + + for (i = 1; i < TXBDAT_OFF + len; i++) + mcp251x_write_reg(spi, TXBCTRL(tx_buf_idx) + i, + buf[i]); + } else { + mutex_lock(&priv->spi_lock); + memcpy(priv->spi_tx_buf, buf, TXBDAT_OFF + len); + mcp251x_spi_trans(spi, TXBDAT_OFF + len); + mutex_unlock(&priv->spi_lock); + } +} + +static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame, + int tx_buf_idx) +{ + u32 sid, eid, exide, rtr; + u8 buf[SPI_TRANSFER_BUF_LEN]; + + exide = (frame->can_id & CAN_EFF_FLAG) ? 1 : 0; /* Extended ID Enable */ + if (exide) + sid = (frame->can_id & CAN_EFF_MASK) >> 18; + else + sid = frame->can_id & CAN_SFF_MASK; /* Standard ID */ + eid = frame->can_id & CAN_EFF_MASK; /* Extended ID */ + rtr = (frame->can_id & CAN_RTR_FLAG) ? 1 : 0; /* Remote transmission */ + + buf[TXBCTRL_OFF] = INSTRUCTION_LOAD_TXB(tx_buf_idx); + buf[TXBSIDH_OFF] = sid >> SIDH_SHIFT; + buf[TXBSIDL_OFF] = ((sid & SIDL_SID_MASK) << SIDL_SID_SHIFT) | + (exide << SIDL_EXIDE_SHIFT) | + ((eid >> SIDL_EID_SHIFT) & SIDL_EID_MASK); + buf[TXBEID8_OFF] = GET_BYTE(eid, 1); + buf[TXBEID0_OFF] = GET_BYTE(eid, 0); + buf[TXBDLC_OFF] = (rtr << DLC_RTR_SHIFT) | frame->can_dlc; + memcpy(buf + TXBDAT_OFF, frame->data, frame->can_dlc); + mcp251x_hw_tx_frame(spi, buf, frame->can_dlc, tx_buf_idx); + mcp251x_write_reg(spi, TXBCTRL(tx_buf_idx), TXBCTRL_TXREQ); +} + +static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf, + int buf_idx) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + + if (pdata->model == CAN_MCP251X_MCP2510) { + int i, len; + + for (i = 1; i < RXBDAT_OFF; i++) + buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i); + len = buf[RXBDLC_OFF] & RXBDLC_LEN_MASK; + if (len > 8) + len = 8; + for (; i < (RXBDAT_OFF + len); i++) + buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i); + } else { + mutex_lock(&priv->spi_lock); + + priv->spi_tx_buf[RXBCTRL_OFF] = INSTRUCTION_READ_RXB(buf_idx); + mcp251x_spi_trans(spi, SPI_TRANSFER_BUF_LEN); + memcpy(buf, priv->spi_rx_buf, SPI_TRANSFER_BUF_LEN); + + mutex_unlock(&priv->spi_lock); + } +} + +static void mcp251x_hw_rx(struct spi_device *spi, int buf_idx) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + struct sk_buff *skb; + struct can_frame *frame; + u8 buf[SPI_TRANSFER_BUF_LEN]; + + skb = alloc_can_skb(priv->net, &frame); + if (!skb) { + dev_err(&spi->dev, "cannot allocate RX skb\n"); + priv->net->stats.rx_dropped++; + return; + } + + mcp251x_hw_rx_frame(spi, buf, buf_idx); + if (buf[RXBSIDL_OFF] & RXBSIDL_IDE) { + /* Extended ID format */ + frame->can_id = CAN_EFF_FLAG; + frame->can_id |= + /* Extended ID part */ + SET_BYTE(buf[RXBSIDL_OFF] & RXBSIDL_EID, 2) | + SET_BYTE(buf[RXBEID8_OFF], 1) | + SET_BYTE(buf[RXBEID0_OFF], 0) | + /* Standard ID part */ + (((buf[RXBSIDH_OFF] << RXBSIDH_SHIFT) | + (buf[RXBSIDL_OFF] >> RXBSIDL_SHIFT)) << 18); + /* Remote transmission request */ + if (buf[RXBDLC_OFF] & RXBDLC_RTR) + frame->can_id |= CAN_RTR_FLAG; + } else { + /* Standard ID format */ + frame->can_id = + (buf[RXBSIDH_OFF] << RXBSIDH_SHIFT) | + (buf[RXBSIDL_OFF] >> RXBSIDL_SHIFT); + } + /* Data length */ + frame->can_dlc = buf[RXBDLC_OFF] & RXBDLC_LEN_MASK; + if (frame->can_dlc > 8) { + dev_warn(&spi->dev, "invalid frame recevied\n"); + priv->net->stats.rx_errors++; + dev_kfree_skb(skb); + return; + } + memcpy(frame->data, buf + RXBDAT_OFF, frame->can_dlc); + + priv->net->stats.rx_packets++; + priv->net->stats.rx_bytes += frame->can_dlc; + netif_rx(skb); +} + +static void mcp251x_hw_sleep(struct spi_device *spi) +{ + mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_SLEEP); +} + +static void mcp251x_hw_wakeup(struct spi_device *spi) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + + priv->wake = 1; + + /* Can only wake up by generating a wake-up interrupt. */ + mcp251x_write_bits(spi, CANINTE, CANINTE_WAKIE, CANINTE_WAKIE); + mcp251x_write_bits(spi, CANINTF, CANINTF_WAKIF, CANINTF_WAKIF); + + /* Wait until the device is awake */ + if (!wait_for_completion_timeout(&priv->awake, HZ)) + dev_err(&spi->dev, "MCP251x didn't wake-up\n"); +} + +static netdev_tx_t mcp251x_hard_start_xmit(struct sk_buff *skb, + struct net_device *net) +{ + struct mcp251x_priv *priv = netdev_priv(net); + struct spi_device *spi = priv->spi; + + if (priv->tx_skb || priv->tx_len) { + dev_warn(&spi->dev, "hard_xmit called while tx busy\n"); + netif_stop_queue(net); + return NETDEV_TX_BUSY; + } + + if (skb->len != sizeof(struct can_frame)) { + dev_err(&spi->dev, "dropping packet - bad length\n"); + dev_kfree_skb(skb); + net->stats.tx_dropped++; + return NETDEV_TX_OK; + } + + netif_stop_queue(net); + priv->tx_skb = skb; + net->trans_start = jiffies; + queue_work(priv->wq, &priv->tx_work); + + return NETDEV_TX_OK; +} + +static int mcp251x_do_set_mode(struct net_device *net, enum can_mode mode) +{ + struct mcp251x_priv *priv = netdev_priv(net); + + switch (mode) { + case CAN_MODE_START: + /* We have to delay work since SPI I/O may sleep */ + priv->can.state = CAN_STATE_ERROR_ACTIVE; + priv->restart_tx = 1; + if (priv->can.restart_ms == 0) + priv->after_suspend = AFTER_SUSPEND_RESTART; + queue_work(priv->wq, &priv->irq_work); + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static void mcp251x_set_normal_mode(struct spi_device *spi) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + unsigned long timeout; + + /* Enable interrupts */ + mcp251x_write_reg(spi, CANINTE, + CANINTE_ERRIE | CANINTE_TX2IE | CANINTE_TX1IE | + CANINTE_TX0IE | CANINTE_RX1IE | CANINTE_RX0IE | + CANINTF_MERRF); + + if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) { + /* Put device into loopback mode */ + mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_LOOPBACK); + } else { + /* Put device into normal mode */ + mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_NORMAL); + + /* Wait for the device to enter normal mode */ + timeout = jiffies + HZ; + while (mcp251x_read_reg(spi, CANSTAT) & CANCTRL_REQOP_MASK) { + schedule(); + if (time_after(jiffies, timeout)) { + dev_err(&spi->dev, "MCP251x didn't" + " enter in normal mode\n"); + return; + } + } + } + priv->can.state = CAN_STATE_ERROR_ACTIVE; +} + +static int mcp251x_do_set_bittiming(struct net_device *net) +{ + struct mcp251x_priv *priv = netdev_priv(net); + struct can_bittiming *bt = &priv->can.bittiming; + struct spi_device *spi = priv->spi; + + mcp251x_write_reg(spi, CNF1, ((bt->sjw - 1) << CNF1_SJW_SHIFT) | + (bt->brp - 1)); + mcp251x_write_reg(spi, CNF2, CNF2_BTLMODE | + (priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES ? + CNF2_SAM : 0) | + ((bt->phase_seg1 - 1) << CNF2_PS1_SHIFT) | + (bt->prop_seg - 1)); + mcp251x_write_bits(spi, CNF3, CNF3_PHSEG2_MASK, + (bt->phase_seg2 - 1)); + dev_info(&spi->dev, "CNF: 0x%02x 0x%02x 0x%02x\n", + mcp251x_read_reg(spi, CNF1), + mcp251x_read_reg(spi, CNF2), + mcp251x_read_reg(spi, CNF3)); + + return 0; +} + +static int mcp251x_setup(struct net_device *net, struct mcp251x_priv *priv, + struct spi_device *spi) +{ + int ret; + + ret = open_candev(net); + if (ret) { + dev_err(&spi->dev, "unable to set initial baudrate!\n"); + return ret; + } + + /* Enable RX0->RX1 buffer roll over and disable filters */ + mcp251x_write_bits(spi, RXBCTRL(0), + RXBCTRL_BUKT | RXBCTRL_RXM0 | RXBCTRL_RXM1, + RXBCTRL_BUKT | RXBCTRL_RXM0 | RXBCTRL_RXM1); + mcp251x_write_bits(spi, RXBCTRL(1), + RXBCTRL_RXM0 | RXBCTRL_RXM1, + RXBCTRL_RXM0 | RXBCTRL_RXM1); + return 0; +} + +static void mcp251x_hw_reset(struct spi_device *spi) +{ + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + int ret; + + mutex_lock(&priv->spi_lock); + + priv->spi_tx_buf[0] = INSTRUCTION_RESET; + + ret = spi_write(spi, priv->spi_tx_buf, 1); + + mutex_unlock(&priv->spi_lock); + + if (ret) + dev_err(&spi->dev, "reset failed: ret = %d\n", ret); + /* Wait for reset to finish */ + mdelay(10); +} + +static int mcp251x_hw_probe(struct spi_device *spi) +{ + int st1, st2; + + mcp251x_hw_reset(spi); + + /* + * Please note that these are "magic values" based on after + * reset defaults taken from data sheet which allows us to see + * if we really have a chip on the bus (we avoid common all + * zeroes or all ones situations) + */ + st1 = mcp251x_read_reg(spi, CANSTAT) & 0xEE; + st2 = mcp251x_read_reg(spi, CANCTRL) & 0x17; + + dev_dbg(&spi->dev, "CANSTAT 0x%02x CANCTRL 0x%02x\n", st1, st2); + + /* Check for power up default values */ + return (st1 == 0x80 && st2 == 0x07) ? 1 : 0; +} + +static irqreturn_t mcp251x_can_isr(int irq, void *dev_id) +{ + struct net_device *net = (struct net_device *)dev_id; + struct mcp251x_priv *priv = netdev_priv(net); + + /* Schedule bottom half */ + if (!work_pending(&priv->irq_work)) + queue_work(priv->wq, &priv->irq_work); + + return IRQ_HANDLED; +} + +static int mcp251x_open(struct net_device *net) +{ + struct mcp251x_priv *priv = netdev_priv(net); + struct spi_device *spi = priv->spi; + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + int ret; + + if (pdata->transceiver_enable) + pdata->transceiver_enable(1); + + priv->force_quit = 0; + priv->tx_skb = NULL; + priv->tx_len = 0; + + ret = request_irq(spi->irq, mcp251x_can_isr, + IRQF_TRIGGER_FALLING, DEVICE_NAME, net); + if (ret) { + dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq); + if (pdata->transceiver_enable) + pdata->transceiver_enable(0); + return ret; + } + + mcp251x_hw_wakeup(spi); + mcp251x_hw_reset(spi); + ret = mcp251x_setup(net, priv, spi); + if (ret) { + free_irq(spi->irq, net); + if (pdata->transceiver_enable) + pdata->transceiver_enable(0); + return ret; + } + mcp251x_set_normal_mode(spi); + netif_wake_queue(net); + + return 0; +} + +static int mcp251x_stop(struct net_device *net) +{ + struct mcp251x_priv *priv = netdev_priv(net); + struct spi_device *spi = priv->spi; + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + + close_candev(net); + + /* Disable and clear pending interrupts */ + mcp251x_write_reg(spi, CANINTE, 0x00); + mcp251x_write_reg(spi, CANINTF, 0x00); + + priv->force_quit = 1; + free_irq(spi->irq, net); + flush_workqueue(priv->wq); + + mcp251x_write_reg(spi, TXBCTRL(0), 0); + if (priv->tx_skb || priv->tx_len) + mcp251x_clean(net); + + mcp251x_hw_sleep(spi); + + if (pdata->transceiver_enable) + pdata->transceiver_enable(0); + + priv->can.state = CAN_STATE_STOPPED; + + return 0; +} + +static void mcp251x_tx_work_handler(struct work_struct *ws) +{ + struct mcp251x_priv *priv = container_of(ws, struct mcp251x_priv, + tx_work); + struct spi_device *spi = priv->spi; + struct net_device *net = priv->net; + struct can_frame *frame; + + if (priv->tx_skb) { + frame = (struct can_frame *)priv->tx_skb->data; + + if (priv->can.state == CAN_STATE_BUS_OFF) { + mcp251x_clean(net); + netif_wake_queue(net); + return; + } + if (frame->can_dlc > CAN_FRAME_MAX_DATA_LEN) + frame->can_dlc = CAN_FRAME_MAX_DATA_LEN; + mcp251x_hw_tx(spi, frame, 0); + priv->tx_len = 1 + frame->can_dlc; + can_put_echo_skb(priv->tx_skb, net, 0); + priv->tx_skb = NULL; + } +} + +static void mcp251x_irq_work_handler(struct work_struct *ws) +{ + struct mcp251x_priv *priv = container_of(ws, struct mcp251x_priv, + irq_work); + struct spi_device *spi = priv->spi; + struct net_device *net = priv->net; + u8 txbnctrl; + u8 intf; + enum can_state new_state; + + if (priv->after_suspend) { + mdelay(10); + mcp251x_hw_reset(spi); + mcp251x_setup(net, priv, spi); + if (priv->after_suspend & AFTER_SUSPEND_RESTART) { + mcp251x_set_normal_mode(spi); + } else if (priv->after_suspend & AFTER_SUSPEND_UP) { + netif_device_attach(net); + /* Clean since we lost tx buffer */ + if (priv->tx_skb || priv->tx_len) { + mcp251x_clean(net); + netif_wake_queue(net); + } + mcp251x_set_normal_mode(spi); + } else { + mcp251x_hw_sleep(spi); + } + priv->after_suspend = 0; + } + + if (priv->can.restart_ms == 0 && priv->can.state == CAN_STATE_BUS_OFF) + return; + + while (!priv->force_quit && !freezing(current)) { + u8 eflag = mcp251x_read_reg(spi, EFLG); + int can_id = 0, data1 = 0; + + mcp251x_write_reg(spi, EFLG, 0x00); + + if (priv->restart_tx) { + priv->restart_tx = 0; + mcp251x_write_reg(spi, TXBCTRL(0), 0); + if (priv->tx_skb || priv->tx_len) + mcp251x_clean(net); + netif_wake_queue(net); + can_id |= CAN_ERR_RESTARTED; + } + + if (priv->wake) { + /* Wait whilst the device wakes up */ + mdelay(10); + priv->wake = 0; + } + + intf = mcp251x_read_reg(spi, CANINTF); + mcp251x_write_bits(spi, CANINTF, intf, 0x00); + + /* Update can state */ + if (eflag & EFLG_TXBO) { + new_state = CAN_STATE_BUS_OFF; + can_id |= CAN_ERR_BUSOFF; + } else if (eflag & EFLG_TXEP) { + new_state = CAN_STATE_ERROR_PASSIVE; + can_id |= CAN_ERR_CRTL; + data1 |= CAN_ERR_CRTL_TX_PASSIVE; + } else if (eflag & EFLG_RXEP) { + new_state = CAN_STATE_ERROR_PASSIVE; + can_id |= CAN_ERR_CRTL; + data1 |= CAN_ERR_CRTL_RX_PASSIVE; + } else if (eflag & EFLG_TXWAR) { + new_state = CAN_STATE_ERROR_WARNING; + can_id |= CAN_ERR_CRTL; + data1 |= CAN_ERR_CRTL_TX_WARNING; + } else if (eflag & EFLG_RXWAR) { + new_state = CAN_STATE_ERROR_WARNING; + can_id |= CAN_ERR_CRTL; + data1 |= CAN_ERR_CRTL_RX_WARNING; + } else { + new_state = CAN_STATE_ERROR_ACTIVE; + } + + /* Update can state statistics */ + switch (priv->can.state) { + case CAN_STATE_ERROR_ACTIVE: + if (new_state >= CAN_STATE_ERROR_WARNING && + new_state <= CAN_STATE_BUS_OFF) + priv->can.can_stats.error_warning++; + case CAN_STATE_ERROR_WARNING: /* fallthrough */ + if (new_state >= CAN_STATE_ERROR_PASSIVE && + new_state <= CAN_STATE_BUS_OFF) + priv->can.can_stats.error_passive++; + break; + default: + break; + } + priv->can.state = new_state; + + if ((intf & CANINTF_ERRIF) || (can_id & CAN_ERR_RESTARTED)) { + struct sk_buff *skb; + struct can_frame *frame; + + /* Create error frame */ + skb = alloc_can_err_skb(net, &frame); + if (skb) { + /* Set error frame flags based on bus state */ + frame->can_id = can_id; + frame->data[1] = data1; + + /* Update net stats for overflows */ + if (eflag & (EFLG_RX0OVR | EFLG_RX1OVR)) { + if (eflag & EFLG_RX0OVR) + net->stats.rx_over_errors++; + if (eflag & EFLG_RX1OVR) + net->stats.rx_over_errors++; + frame->can_id |= CAN_ERR_CRTL; + frame->data[1] |= + CAN_ERR_CRTL_RX_OVERFLOW; + } + + netif_rx(skb); + } else { + dev_info(&spi->dev, + "cannot allocate error skb\n"); + } + } + + if (priv->can.state == CAN_STATE_BUS_OFF) { + if (priv->can.restart_ms == 0) { + can_bus_off(net); + mcp251x_hw_sleep(spi); + return; + } + } + + if (intf == 0) + break; + + if (intf & CANINTF_WAKIF) + complete(&priv->awake); + + if (intf & CANINTF_MERRF) { + /* If there are pending Tx buffers, restart queue */ + txbnctrl = mcp251x_read_reg(spi, TXBCTRL(0)); + if (!(txbnctrl & TXBCTRL_TXREQ)) { + if (priv->tx_skb || priv->tx_len) + mcp251x_clean(net); + netif_wake_queue(net); + } + } + + if (intf & (CANINTF_TX2IF | CANINTF_TX1IF | CANINTF_TX0IF)) { + net->stats.tx_packets++; + net->stats.tx_bytes += priv->tx_len - 1; + if (priv->tx_len) { + can_get_echo_skb(net, 0); + priv->tx_len = 0; + } + netif_wake_queue(net); + } + + if (intf & CANINTF_RX0IF) + mcp251x_hw_rx(spi, 0); + + if (intf & CANINTF_RX1IF) + mcp251x_hw_rx(spi, 1); + } +} + +static const struct net_device_ops mcp251x_netdev_ops = { + .ndo_open = mcp251x_open, + .ndo_stop = mcp251x_stop, + .ndo_start_xmit = mcp251x_hard_start_xmit, +}; + +static int __devinit mcp251x_can_probe(struct spi_device *spi) +{ + struct net_device *net; + struct mcp251x_priv *priv; + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + int ret = -ENODEV; + + if (!pdata) + /* Platform data is required for osc freq */ + goto error_out; + + /* Allocate can/net device */ + net = alloc_candev(sizeof(struct mcp251x_priv), TX_ECHO_SKB_MAX); + if (!net) { + ret = -ENOMEM; + goto error_alloc; + } + + net->netdev_ops = &mcp251x_netdev_ops; + net->flags |= IFF_ECHO; + + priv = netdev_priv(net); + priv->can.bittiming_const = &mcp251x_bittiming_const; + priv->can.do_set_mode = mcp251x_do_set_mode; + priv->can.clock.freq = pdata->oscillator_frequency / 2; + priv->can.do_set_bittiming = mcp251x_do_set_bittiming; + priv->net = net; + dev_set_drvdata(&spi->dev, priv); + + priv->spi = spi; + mutex_init(&priv->spi_lock); + + /* If requested, allocate DMA buffers */ + if (mcp251x_enable_dma) { + spi->dev.coherent_dma_mask = ~0; + + /* + * Minimum coherent DMA allocation is PAGE_SIZE, so allocate + * that much and share it between Tx and Rx DMA buffers. + */ + priv->spi_tx_buf = dma_alloc_coherent(&spi->dev, + PAGE_SIZE, + &priv->spi_tx_dma, + GFP_DMA); + + if (priv->spi_tx_buf) { + priv->spi_rx_buf = (u8 *)(priv->spi_tx_buf + + (PAGE_SIZE / 2)); + priv->spi_rx_dma = (dma_addr_t)(priv->spi_tx_dma + + (PAGE_SIZE / 2)); + } else { + /* Fall back to non-DMA */ + mcp251x_enable_dma = 0; + } + } + + /* Allocate non-DMA buffers */ + if (!mcp251x_enable_dma) { + priv->spi_tx_buf = kmalloc(SPI_TRANSFER_BUF_LEN, GFP_KERNEL); + if (!priv->spi_tx_buf) { + ret = -ENOMEM; + goto error_tx_buf; + } + priv->spi_rx_buf = kmalloc(SPI_TRANSFER_BUF_LEN, GFP_KERNEL); + if (!priv->spi_tx_buf) { + ret = -ENOMEM; + goto error_rx_buf; + } + } + + if (pdata->power_enable) + pdata->power_enable(1); + + /* Call out to platform specific setup */ + if (pdata->board_specific_setup) + pdata->board_specific_setup(spi); + + SET_NETDEV_DEV(net, &spi->dev); + + priv->wq = create_freezeable_workqueue("mcp251x_wq"); + + INIT_WORK(&priv->tx_work, mcp251x_tx_work_handler); + INIT_WORK(&priv->irq_work, mcp251x_irq_work_handler); + + init_completion(&priv->awake); + + /* Configure the SPI bus */ + spi->mode = SPI_MODE_0; + spi->bits_per_word = 8; + spi_setup(spi); + + if (!mcp251x_hw_probe(spi)) { + dev_info(&spi->dev, "Probe failed\n"); + goto error_probe; + } + mcp251x_hw_sleep(spi); + + if (pdata->transceiver_enable) + pdata->transceiver_enable(0); + + ret = register_candev(net); + if (!ret) { + dev_info(&spi->dev, "probed\n"); + return ret; + } +error_probe: + if (!mcp251x_enable_dma) + kfree(priv->spi_rx_buf); +error_rx_buf: + if (!mcp251x_enable_dma) + kfree(priv->spi_tx_buf); +error_tx_buf: + free_candev(net); + if (mcp251x_enable_dma) + dma_free_coherent(&spi->dev, PAGE_SIZE, + priv->spi_tx_buf, priv->spi_tx_dma); +error_alloc: + if (pdata->power_enable) + pdata->power_enable(0); + dev_err(&spi->dev, "probe failed\n"); +error_out: + return ret; +} + +static int __devexit mcp251x_can_remove(struct spi_device *spi) +{ + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + struct net_device *net = priv->net; + + unregister_candev(net); + free_candev(net); + + priv->force_quit = 1; + flush_workqueue(priv->wq); + destroy_workqueue(priv->wq); + + if (mcp251x_enable_dma) { + dma_free_coherent(&spi->dev, PAGE_SIZE, + priv->spi_tx_buf, priv->spi_tx_dma); + } else { + kfree(priv->spi_tx_buf); + kfree(priv->spi_rx_buf); + } + + if (pdata->power_enable) + pdata->power_enable(0); + + return 0; +} + +#ifdef CONFIG_PM +static int mcp251x_can_suspend(struct spi_device *spi, pm_message_t state) +{ + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + struct net_device *net = priv->net; + + if (netif_running(net)) { + netif_device_detach(net); + + mcp251x_hw_sleep(spi); + if (pdata->transceiver_enable) + pdata->transceiver_enable(0); + priv->after_suspend = AFTER_SUSPEND_UP; + } else { + priv->after_suspend = AFTER_SUSPEND_DOWN; + } + + if (pdata->power_enable) { + pdata->power_enable(0); + priv->after_suspend |= AFTER_SUSPEND_POWER; + } + + return 0; +} + +static int mcp251x_can_resume(struct spi_device *spi) +{ + struct mcp251x_platform_data *pdata = spi->dev.platform_data; + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); + + if (priv->after_suspend & AFTER_SUSPEND_POWER) { + pdata->power_enable(1); + queue_work(priv->wq, &priv->irq_work); + } else { + if (priv->after_suspend & AFTER_SUSPEND_UP) { + if (pdata->transceiver_enable) + pdata->transceiver_enable(1); + queue_work(priv->wq, &priv->irq_work); + } else { + priv->after_suspend = 0; + } + } + return 0; +} +#else +#define mcp251x_can_suspend NULL +#define mcp251x_can_resume NULL +#endif + +static struct spi_driver mcp251x_can_driver = { + .driver = { + .name = DEVICE_NAME, + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = mcp251x_can_probe, + .remove = __devexit_p(mcp251x_can_remove), + .suspend = mcp251x_can_suspend, + .resume = mcp251x_can_resume, +}; + +static int __init mcp251x_can_init(void) +{ + return spi_register_driver(&mcp251x_can_driver); +} + +static void __exit mcp251x_can_exit(void) +{ + spi_unregister_driver(&mcp251x_can_driver); +} + +module_init(mcp251x_can_init); +module_exit(mcp251x_can_exit); + +MODULE_AUTHOR("Chris Elston , " + "Christian Pellegrin "); +MODULE_DESCRIPTION("Microchip 251x CAN driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h new file mode 100644 index 000000000000..1448177d86d5 --- /dev/null +++ b/include/linux/can/platform/mcp251x.h @@ -0,0 +1,36 @@ +#ifndef __CAN_PLATFORM_MCP251X_H__ +#define __CAN_PLATFORM_MCP251X_H__ + +/* + * + * CAN bus driver for Microchip 251x CAN Controller with SPI Interface + * + */ + +#include + +/** + * struct mcp251x_platform_data - MCP251X SPI CAN controller platform data + * @oscillator_frequency: - oscillator frequency in Hz + * @model: - actual type of chip + * @board_specific_setup: - called before probing the chip (power,reset) + * @transceiver_enable: - called to power on/off the transceiver + * @power_enable: - called to power on/off the mcp *and* the + * transceiver + * + * Please note that you should define power_enable or transceiver_enable or + * none of them. Defining both of them is no use. + * + */ + +struct mcp251x_platform_data { + unsigned long oscillator_frequency; + int model; +#define CAN_MCP251X_MCP2510 0 +#define CAN_MCP251X_MCP2515 1 + int (*board_specific_setup)(struct spi_device *spi); + int (*transceiver_enable)(int enable); + int (*power_enable) (int enable); +}; + +#endif /* __CAN_PLATFORM_MCP251X_H__ */ -- cgit v1.2.3 From d4cada4ae1c012815f95fa507eb86a0ae9d607d7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 8 Nov 2009 10:17:30 +0000 Subject: udp: split sk_hash into two u16 hashes Union sk_hash with two u16 hashes for udp (no extra memory taken) One 16 bits hash on (local port) value (the previous udp 'hash') One 16 bits hash on (local address, local port) values, initialized but not yet used. This second hash is using jenkin hash for better distribution. Because the 'port' is xored later, a partial hash is performed on local address + net_hash_mix(net) Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/udp.h | 2 ++ include/net/sock.h | 6 +++++- net/ipv4/udp.c | 25 +++++++++++++++++++------ net/ipv6/udp.c | 27 +++++++++++++++++++++++++-- 4 files changed, 51 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/udp.h b/include/linux/udp.h index 832361e3e596..5b4b5274e683 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -55,6 +55,8 @@ static inline int udp_hashfn(struct net *net, unsigned num, unsigned mask) struct udp_sock { /* inet_sock has to be the first member */ struct inet_sock inet; +#define udp_port_hash inet.sk.__sk_common.skc_u16hashes[0] +#define udp_portaddr_hash inet.sk.__sk_common.skc_u16hashes[1] int pending; /* Any pending frames ? */ unsigned int corkflag; /* Cork is required */ __u16 encap_type; /* Is this an Encapsulation socket? */ diff --git a/include/net/sock.h b/include/net/sock.h index 55de3bd719a5..827366b62680 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -109,6 +109,7 @@ struct net; * @skc_refcnt: reference count * @skc_tx_queue_mapping: tx queue number for this connection * @skc_hash: hash value used with various protocol lookup tables + * @skc_u16hashes: two u16 hash values used by UDP lookup tables * @skc_family: network address family * @skc_state: Connection state * @skc_reuse: %SO_REUSEADDR setting @@ -131,7 +132,10 @@ struct sock_common { atomic_t skc_refcnt; int skc_tx_queue_mapping; - unsigned int skc_hash; + union { + unsigned int skc_hash; + __u16 skc_u16hashes[2]; + }; unsigned short skc_family; volatile unsigned char skc_state; unsigned char skc_reuse; diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index ffc837643a04..af72de1c8690 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -138,13 +138,14 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num, sk_nulls_for_each(sk2, node, &hslot->head) if (net_eq(sock_net(sk2), net) && sk2 != sk && - (bitmap || sk2->sk_hash == num) && + (bitmap || udp_sk(sk2)->udp_port_hash == num) && (!sk2->sk_reuse || !sk->sk_reuse) && (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && (*saddr_comp)(sk, sk2)) { if (bitmap) - __set_bit(sk2->sk_hash >> log, bitmap); + __set_bit(udp_sk(sk2)->udp_port_hash >> log, + bitmap); else return 1; } @@ -215,7 +216,8 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, } found: inet_sk(sk)->inet_num = snum; - sk->sk_hash = snum; + udp_sk(sk)->udp_port_hash = snum; + udp_sk(sk)->udp_portaddr_hash ^= snum; if (sk_unhashed(sk)) { sk_nulls_add_node_rcu(sk, &hslot->head); hslot->count++; @@ -238,8 +240,19 @@ static int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2) inet1->inet_rcv_saddr == inet2->inet_rcv_saddr)); } +static unsigned int udp4_portaddr_hash(struct net *net, __be32 saddr, + unsigned int port) +{ + return jhash_1word(saddr, net_hash_mix(net)) ^ port; +} + int udp_v4_get_port(struct sock *sk, unsigned short snum) { + /* precompute partial secondary hash */ + udp_sk(sk)->udp_portaddr_hash = + udp4_portaddr_hash(sock_net(sk), + inet_sk(sk)->inet_rcv_saddr, + 0); return udp_lib_get_port(sk, snum, ipv4_rcv_saddr_equal); } @@ -249,7 +262,7 @@ static inline int compute_score(struct sock *sk, struct net *net, __be32 saddr, { int score = -1; - if (net_eq(sock_net(sk), net) && sk->sk_hash == hnum && + if (net_eq(sock_net(sk), net) && udp_sk(sk)->udp_port_hash == hnum && !ipv6_only_sock(sk)) { struct inet_sock *inet = inet_sk(sk); @@ -360,7 +373,7 @@ static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk, struct inet_sock *inet = inet_sk(s); if (!net_eq(sock_net(s), net) || - s->sk_hash != hnum || + udp_sk(s)->udp_port_hash != hnum || (inet->inet_daddr && inet->inet_daddr != rmt_addr) || (inet->inet_dport != rmt_port && inet->inet_dport) || (inet->inet_rcv_saddr && @@ -1050,7 +1063,7 @@ void udp_lib_unhash(struct sock *sk) if (sk_hashed(sk)) { struct udp_table *udptable = sk->sk_prot->h.udp_table; struct udp_hslot *hslot = udp_hashslot(udptable, sock_net(sk), - sk->sk_hash); + udp_sk(sk)->udp_port_hash); spin_lock_bh(&hslot->lock); if (sk_nulls_del_node_init_rcu(sk)) { diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 5bc7cdbf030a..1e5fadd997b7 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -81,8 +81,30 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) return 0; } +static unsigned int udp6_portaddr_hash(struct net *net, + const struct in6_addr *addr6, + unsigned int port) +{ + unsigned int hash, mix = net_hash_mix(net); + + if (ipv6_addr_any(addr6)) + hash = jhash_1word(0, mix); + else if (ipv6_addr_type(addr6) == IPV6_ADDR_MAPPED) + hash = jhash_1word(addr6->s6_addr32[3], mix); + else + hash = jhash2(addr6->s6_addr32, 4, mix); + + return hash ^ port; +} + + int udp_v6_get_port(struct sock *sk, unsigned short snum) { + /* precompute partial secondary hash */ + udp_sk(sk)->udp_portaddr_hash = + udp6_portaddr_hash(sock_net(sk), + &inet6_sk(sk)->rcv_saddr, + 0); return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal); } @@ -94,7 +116,7 @@ static inline int compute_score(struct sock *sk, struct net *net, { int score = -1; - if (net_eq(sock_net(sk), net) && sk->sk_hash == hnum && + if (net_eq(sock_net(sk), net) && udp_sk(sk)->udp_port_hash == hnum && sk->sk_family == PF_INET6) { struct ipv6_pinfo *np = inet6_sk(sk); struct inet_sock *inet = inet_sk(sk); @@ -415,7 +437,8 @@ static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk, if (!net_eq(sock_net(s), net)) continue; - if (s->sk_hash == num && s->sk_family == PF_INET6) { + if (udp_sk(s)->udp_port_hash == num && + s->sk_family == PF_INET6) { struct ipv6_pinfo *np = inet6_sk(s); if (inet->inet_dport) { if (inet->inet_dport != rmt_port) -- cgit v1.2.3 From 512615b6b843ff3ff5ad583f34c39b3f302f5f26 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 8 Nov 2009 10:17:58 +0000 Subject: udp: secondary hash on (local port, local address) Extends udp_table to contain a secondary hash table. socket anchor for this second hash is free, because UDP doesnt use skc_bind_node : We define an union to hold both skc_bind_node & a new hlist_nulls_node udp_portaddr_node udp_lib_get_port() inserts sockets into second hash chain (additional cost of one atomic op) udp_lib_unhash() deletes socket from second hash chain (additional cost of one atomic op) Note : No spinlock lockdep annotation is needed, because lock for the secondary hash chain is always get after lock for primary hash chain. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/udp.h | 1 + include/net/sock.h | 8 ++++++-- include/net/udp.h | 22 ++++++++++++++++++++-- net/ipv4/udp.c | 31 ++++++++++++++++++++++++++----- 4 files changed, 53 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/udp.h b/include/linux/udp.h index 5b4b5274e683..59f0ddf2d284 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -57,6 +57,7 @@ struct udp_sock { struct inet_sock inet; #define udp_port_hash inet.sk.__sk_common.skc_u16hashes[0] #define udp_portaddr_hash inet.sk.__sk_common.skc_u16hashes[1] +#define udp_portaddr_node inet.sk.__sk_common.skc_portaddr_node int pending; /* Any pending frames ? */ unsigned int corkflag; /* Cork is required */ __u16 encap_type; /* Is this an Encapsulation socket? */ diff --git a/include/net/sock.h b/include/net/sock.h index 827366b62680..3f1a4804bb3f 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -105,7 +105,7 @@ struct net; /** * struct sock_common - minimal network layer representation of sockets * @skc_node: main hash linkage for various protocol lookup tables - * @skc_nulls_node: main hash linkage for UDP/UDP-Lite protocol + * @skc_nulls_node: main hash linkage for TCP/UDP/UDP-Lite protocol * @skc_refcnt: reference count * @skc_tx_queue_mapping: tx queue number for this connection * @skc_hash: hash value used with various protocol lookup tables @@ -115,6 +115,7 @@ struct net; * @skc_reuse: %SO_REUSEADDR setting * @skc_bound_dev_if: bound device index if != 0 * @skc_bind_node: bind hash linkage for various protocol lookup tables + * @skc_portaddr_node: second hash linkage for UDP/UDP-Lite protocol * @skc_prot: protocol handlers inside a network family * @skc_net: reference to the network namespace of this socket * @@ -140,7 +141,10 @@ struct sock_common { volatile unsigned char skc_state; unsigned char skc_reuse; int skc_bound_dev_if; - struct hlist_node skc_bind_node; + union { + struct hlist_node skc_bind_node; + struct hlist_nulls_node skc_portaddr_node; + }; struct proto *skc_prot; #ifdef CONFIG_NET_NS struct net *skc_net; diff --git a/include/net/udp.h b/include/net/udp.h index 9167281e47dc..af41850f742a 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -63,10 +63,19 @@ struct udp_hslot { spinlock_t lock; } __attribute__((aligned(2 * sizeof(long)))); +/** + * struct udp_table - UDP table + * + * @hash: hash table, sockets are hashed on (local port) + * @hash2: hash table, sockets are hashed on (local port, local address) + * @mask: number of slots in hash tables, minus 1 + * @log: log2(number of slots in hash table) + */ struct udp_table { struct udp_hslot *hash; - unsigned int mask; - unsigned int log; + struct udp_hslot *hash2; + unsigned int mask; + unsigned int log; }; extern struct udp_table udp_table; extern void udp_table_init(struct udp_table *, const char *); @@ -75,6 +84,15 @@ static inline struct udp_hslot *udp_hashslot(struct udp_table *table, { return &table->hash[udp_hashfn(net, num, table->mask)]; } +/* + * For secondary hash, net_hash_mix() is performed before calling + * udp_hashslot2(), this explains difference with udp_hashslot() + */ +static inline struct udp_hslot *udp_hashslot2(struct udp_table *table, + unsigned int hash) +{ + return &table->hash2[hash & table->mask]; +} /* Note: this must match 'valbool' in sock_setsockopt */ #define UDP_CSUM_NOXMIT 1 diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index af72de1c8690..5f04216f35ce 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -163,7 +163,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, int (*saddr_comp)(const struct sock *sk1, const struct sock *sk2)) { - struct udp_hslot *hslot; + struct udp_hslot *hslot, *hslot2; struct udp_table *udptable = sk->sk_prot->h.udp_table; int error = 1; struct net *net = sock_net(sk); @@ -222,6 +222,13 @@ found: sk_nulls_add_node_rcu(sk, &hslot->head); hslot->count++; sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + + hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash); + spin_lock(&hslot2->lock); + hlist_nulls_add_head_rcu(&udp_sk(sk)->udp_portaddr_node, + &hslot2->head); + hslot2->count++; + spin_unlock(&hslot2->lock); } error = 0; fail_unlock: @@ -1062,14 +1069,22 @@ void udp_lib_unhash(struct sock *sk) { if (sk_hashed(sk)) { struct udp_table *udptable = sk->sk_prot->h.udp_table; - struct udp_hslot *hslot = udp_hashslot(udptable, sock_net(sk), - udp_sk(sk)->udp_port_hash); + struct udp_hslot *hslot, *hslot2; + + hslot = udp_hashslot(udptable, sock_net(sk), + udp_sk(sk)->udp_port_hash); + hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash); spin_lock_bh(&hslot->lock); if (sk_nulls_del_node_init_rcu(sk)) { hslot->count--; inet_sk(sk)->inet_num = 0; sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); + + spin_lock(&hslot2->lock); + hlist_nulls_del_init_rcu(&udp_sk(sk)->udp_portaddr_node); + hslot2->count--; + spin_unlock(&hslot2->lock); } spin_unlock_bh(&hslot->lock); } @@ -1857,7 +1872,7 @@ void __init udp_table_init(struct udp_table *table, const char *name) if (!CONFIG_BASE_SMALL) table->hash = alloc_large_system_hash(name, - sizeof(struct udp_hslot), + 2 * sizeof(struct udp_hslot), uhash_entries, 21, /* one slot per 2 MB */ 0, @@ -1869,17 +1884,23 @@ void __init udp_table_init(struct udp_table *table, const char *name) */ if (CONFIG_BASE_SMALL || table->mask < UDP_HTABLE_SIZE_MIN - 1) { table->hash = kmalloc(UDP_HTABLE_SIZE_MIN * - sizeof(struct udp_hslot), GFP_KERNEL); + 2 * sizeof(struct udp_hslot), GFP_KERNEL); if (!table->hash) panic(name); table->log = ilog2(UDP_HTABLE_SIZE_MIN); table->mask = UDP_HTABLE_SIZE_MIN - 1; } + table->hash2 = table->hash + (table->mask + 1); for (i = 0; i <= table->mask; i++) { INIT_HLIST_NULLS_HEAD(&table->hash[i].head, i); table->hash[i].count = 0; spin_lock_init(&table->hash[i].lock); } + for (i = 0; i <= table->mask; i++) { + INIT_HLIST_NULLS_HEAD(&table->hash2[i].head, i); + table->hash2[i].count = 0; + spin_lock_init(&table->hash2[i].lock); + } } void __init udp_init(void) -- cgit v1.2.3 From 7a50a240c495478179f01c9df4bd75e39cff79c7 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 8 Nov 2009 20:57:03 -0800 Subject: net/compat_ioctl: support SIOCWANDEV This adds compat_ioctl support for SIOCWANDEV, which has always been missing. The definition of struct compat_ifreq was missing an ifru_settings fields that is needed to support SIOCWANDEV, so add that and clean up the whitespace damage in the struct definition. Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- include/linux/compat.h | 41 ++++++++++++++++++++++++----------------- net/socket.c | 23 +++++++++++++++++++++++ 2 files changed, 47 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/compat.h b/include/linux/compat.h index 224c7a896172..ef68119a4fd2 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -165,25 +165,32 @@ struct compat_ifmap { unsigned char port; }; +struct compat_if_settings +{ + unsigned int type; /* Type of physical device or protocol */ + unsigned int size; /* Size of the data allocated by the caller */ + compat_uptr_t ifs_ifsu; /* union of pointers */ +}; + struct compat_ifreq { - union { - char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ - } ifr_ifrn; - union { - struct sockaddr ifru_addr; - struct sockaddr ifru_dstaddr; - struct sockaddr ifru_broadaddr; - struct sockaddr ifru_netmask; - struct sockaddr ifru_hwaddr; - short ifru_flags; - compat_int_t ifru_ivalue; - compat_int_t ifru_mtu; - struct compat_ifmap ifru_map; - char ifru_slave[IFNAMSIZ]; /* Just fits the size */ + union { + char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + } ifr_ifrn; + union { + struct sockaddr ifru_addr; + struct sockaddr ifru_dstaddr; + struct sockaddr ifru_broadaddr; + struct sockaddr ifru_netmask; + struct sockaddr ifru_hwaddr; + short ifru_flags; + compat_int_t ifru_ivalue; + compat_int_t ifru_mtu; + struct compat_ifmap ifru_map; + char ifru_slave[IFNAMSIZ]; /* Just fits the size */ char ifru_newname[IFNAMSIZ]; - compat_caddr_t ifru_data; - /* XXXX? ifru_settings should be here */ - } ifr_ifru; + compat_caddr_t ifru_data; + struct compat_if_settings ifru_settings; + } ifr_ifru; }; struct compat_ifconf { diff --git a/net/socket.c b/net/socket.c index 224e7f73fdf0..befd9f5b1620 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2627,6 +2627,27 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) return dev_ioctl(net, SIOCETHTOOL, ifr); } +static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32) +{ + void __user *uptr; + compat_uptr_t uptr32; + struct ifreq __user *uifr; + + uifr = compat_alloc_user_space(sizeof (*uifr)); + if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq))) + return -EFAULT; + + if (get_user(uptr32, &uifr32->ifr_settings.ifs_ifsu)) + return -EFAULT; + + uptr = compat_ptr(uptr32); + + if (put_user(uptr, &uifr->ifr_settings.ifs_ifsu.raw_hdlc)) + return -EFAULT; + + return dev_ioctl(net, SIOCWANDEV, uifr); +} + static int bond_ioctl(struct net *net, unsigned int cmd, struct compat_ifreq __user *ifr32) { @@ -3058,6 +3079,8 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, return dev_ifconf(net, argp); case SIOCETHTOOL: return ethtool_ioctl(net, argp); + case SIOCWANDEV: + return compat_siocwandev(net, argp); case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: -- cgit v1.2.3 From 30fff9231fad757c061285e347b33c5149c2c2e4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 9 Nov 2009 05:26:33 +0000 Subject: udp: bind() optimisation UDP bind() can be O(N^2) in some pathological cases. Thanks to secondary hash tables, we can make it O(N) Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/udp.h | 6 +++++ include/net/udp.h | 3 ++- net/ipv4/udp.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++------ net/ipv6/udp.c | 14 +++++----- 4 files changed, 80 insertions(+), 16 deletions(-) (limited to 'include/linux') diff --git a/include/linux/udp.h b/include/linux/udp.h index 59f0ddf2d284..03f72a2ba028 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -88,6 +88,12 @@ static inline struct udp_sock *udp_sk(const struct sock *sk) return (struct udp_sock *)sk; } +#define udp_portaddr_for_each_entry(__sk, node, list) \ + hlist_nulls_for_each_entry(__sk, node, list, __sk_common.skc_portaddr_node) + +#define udp_portaddr_for_each_entry_rcu(__sk, node, list) \ + hlist_nulls_for_each_entry_rcu(__sk, node, list, __sk_common.skc_portaddr_node) + #define IS_UDPLITE(__sk) (udp_sk(__sk)->pcflag) #endif diff --git a/include/net/udp.h b/include/net/udp.h index af41850f742a..5348d80b25bb 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -158,7 +158,8 @@ static inline void udp_lib_close(struct sock *sk, long timeout) } extern int udp_lib_get_port(struct sock *sk, unsigned short snum, - int (*)(const struct sock*,const struct sock*)); + int (*)(const struct sock *,const struct sock *), + unsigned int hash2_nulladdr); /* net/ipv4/udp.c */ extern int udp_get_port(struct sock *sk, unsigned short snum, diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index d73e9170536b..1eaf57567ebf 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -152,16 +152,49 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num, return 0; } +/* + * Note: we still hold spinlock of primary hash chain, so no other writer + * can insert/delete a socket with local_port == num + */ +static int udp_lib_lport_inuse2(struct net *net, __u16 num, + struct udp_hslot *hslot2, + struct sock *sk, + int (*saddr_comp)(const struct sock *sk1, + const struct sock *sk2)) +{ + struct sock *sk2; + struct hlist_nulls_node *node; + int res = 0; + + spin_lock(&hslot2->lock); + udp_portaddr_for_each_entry(sk2, node, &hslot2->head) + if (net_eq(sock_net(sk2), net) && + sk2 != sk && + (udp_sk(sk2)->udp_port_hash == num) && + (!sk2->sk_reuse || !sk->sk_reuse) && + (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if + || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && + (*saddr_comp)(sk, sk2)) { + res = 1; + break; + } + spin_unlock(&hslot2->lock); + return res; +} + /** * udp_lib_get_port - UDP/-Lite port lookup for IPv4 and IPv6 * * @sk: socket struct in question * @snum: port number to look up * @saddr_comp: AF-dependent comparison of bound local IP addresses + * @hash2_nulladdr: AF-dependant hash value in secondary hash chains, + * with NULL address */ int udp_lib_get_port(struct sock *sk, unsigned short snum, int (*saddr_comp)(const struct sock *sk1, - const struct sock *sk2)) + const struct sock *sk2), + unsigned int hash2_nulladdr) { struct udp_hslot *hslot, *hslot2; struct udp_table *udptable = sk->sk_prot->h.udp_table; @@ -210,6 +243,30 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, } else { hslot = udp_hashslot(udptable, net, snum); spin_lock_bh(&hslot->lock); + if (hslot->count > 10) { + int exist; + unsigned int slot2 = udp_sk(sk)->udp_portaddr_hash ^ snum; + + slot2 &= udptable->mask; + hash2_nulladdr &= udptable->mask; + + hslot2 = udp_hashslot2(udptable, slot2); + if (hslot->count < hslot2->count) + goto scan_primary_hash; + + exist = udp_lib_lport_inuse2(net, snum, hslot2, + sk, saddr_comp); + if (!exist && (hash2_nulladdr != slot2)) { + hslot2 = udp_hashslot2(udptable, hash2_nulladdr); + exist = udp_lib_lport_inuse2(net, snum, hslot2, + sk, saddr_comp); + } + if (exist) + goto fail_unlock; + else + goto found; + } +scan_primary_hash: if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp, 0)) goto fail_unlock; @@ -255,12 +312,14 @@ static unsigned int udp4_portaddr_hash(struct net *net, __be32 saddr, int udp_v4_get_port(struct sock *sk, unsigned short snum) { + unsigned int hash2_nulladdr = + udp4_portaddr_hash(sock_net(sk), INADDR_ANY, snum); + unsigned int hash2_partial = + udp4_portaddr_hash(sock_net(sk), inet_sk(sk)->inet_rcv_saddr, 0); + /* precompute partial secondary hash */ - udp_sk(sk)->udp_portaddr_hash = - udp4_portaddr_hash(sock_net(sk), - inet_sk(sk)->inet_rcv_saddr, - 0); - return udp_lib_get_port(sk, snum, ipv4_rcv_saddr_equal); + udp_sk(sk)->udp_portaddr_hash = hash2_partial; + return udp_lib_get_port(sk, snum, ipv4_rcv_saddr_equal, hash2_nulladdr); } static inline int compute_score(struct sock *sk, struct net *net, __be32 saddr, @@ -336,8 +395,6 @@ static inline int compute_score2(struct sock *sk, struct net *net, return score; } -#define udp_portaddr_for_each_entry_rcu(__sk, node, list) \ - hlist_nulls_for_each_entry_rcu(__sk, node, list, __sk_common.skc_portaddr_node) /* called with read_rcu_lock() */ static struct sock *udp4_lib_lookup2(struct net *net, diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 2915e1dad726..f4c85b200051 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -100,12 +100,14 @@ static unsigned int udp6_portaddr_hash(struct net *net, int udp_v6_get_port(struct sock *sk, unsigned short snum) { + unsigned int hash2_nulladdr = + udp6_portaddr_hash(sock_net(sk), &in6addr_any, snum); + unsigned int hash2_partial = + udp6_portaddr_hash(sock_net(sk), &inet6_sk(sk)->rcv_saddr, 0); + /* precompute partial secondary hash */ - udp_sk(sk)->udp_portaddr_hash = - udp6_portaddr_hash(sock_net(sk), - &inet6_sk(sk)->rcv_saddr, - 0); - return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal); + udp_sk(sk)->udp_portaddr_hash = hash2_partial; + return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal, hash2_nulladdr); } static inline int compute_score(struct sock *sk, struct net *net, @@ -181,8 +183,6 @@ static inline int compute_score2(struct sock *sk, struct net *net, return score; } -#define udp_portaddr_for_each_entry_rcu(__sk, node, list) \ - hlist_nulls_for_each_entry_rcu(__sk, node, list, __sk_common.skc_portaddr_node) /* called with read_rcu_lock() */ static struct sock *udp6_lib_lookup2(struct net *net, -- cgit v1.2.3 From 37e8273cd30592d3a82bcb70cbb1bdc4eaeb6b71 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 4 Nov 2009 15:29:52 +0000 Subject: usbnet: Set link down initially for drivers that update link state Some usbnet drivers update link state while others do not due to hardware limitations. Add a flag to distinguish those that do, and set the link down initially for their devices. This is intended to fix this bug: http://bugs.debian.org/444043 Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/usb/asix.c | 12 ++++++------ drivers/net/usb/cdc_ether.c | 2 +- drivers/net/usb/dm9601.c | 2 +- drivers/net/usb/usbnet.c | 4 +++- include/linux/usb/usbnet.h | 1 + 5 files changed, 12 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 6ce7f775bb74..1bef39a60a62 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -1327,7 +1327,7 @@ static const struct driver_info ax8817x_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; @@ -1337,7 +1337,7 @@ static const struct driver_info dlink_dub_e100_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x009f9d9f, }; @@ -1347,7 +1347,7 @@ static const struct driver_info netgear_fa120_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x00130103, }; @@ -1357,7 +1357,7 @@ static const struct driver_info hawking_uf200_info = { .status = asix_status, .link_reset = ax88172_link_reset, .reset = ax88172_link_reset, - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .data = 0x001f1d1f, }; @@ -1367,7 +1367,7 @@ static const struct driver_info ax88772_info = { .status = asix_status, .link_reset = ax88772_link_reset, .reset = ax88772_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR, .rx_fixup = asix_rx_fixup, .tx_fixup = asix_tx_fixup, }; @@ -1378,7 +1378,7 @@ static const struct driver_info ax88178_info = { .status = asix_status, .link_reset = ax88178_link_reset, .reset = ax88178_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR, .rx_fixup = asix_rx_fixup, .tx_fixup = asix_tx_fixup, }; diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 71d7ff3de99f..7ec24c9b2535 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -413,7 +413,7 @@ static int cdc_bind(struct usbnet *dev, struct usb_interface *intf) static const struct driver_info cdc_info = { .description = "CDC Ethernet Device", - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, // .check_connect = cdc_check_connect, .bind = cdc_bind, .unbind = usbnet_cdc_unbind, diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index a2b30a10064f..3d406f9b2f29 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -611,7 +611,7 @@ static int dm9601_link_reset(struct usbnet *dev) static const struct driver_info dm9601_info = { .description = "Davicom DM9601 USB Ethernet", - .flags = FLAG_ETHER, + .flags = FLAG_ETHER | FLAG_LINK_INTR, .bind = dm9601_bind, .rx_fixup = dm9601_rx_fixup, .tx_fixup = dm9601_tx_fixup, diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 378da8c938fe..04f3f289e87c 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1352,9 +1352,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) // ok, it's ready to go. usb_set_intfdata (udev, dev); - // start as if the link is up netif_device_attach (net); + if (dev->driver_info->flags & FLAG_LINK_INTR) + netif_carrier_off(net); + return 0; out3: diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 86c31b753266..8c84881f8478 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -92,6 +92,7 @@ struct driver_info { #define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */ #define FLAG_WWAN 0x0400 /* use "wwan%d" names */ +#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */ /* init device ... can sleep, or cause probe() failure */ int (*bind)(struct usbnet *, struct usb_interface *); -- cgit v1.2.3 From 254245d23396aca1f9100d500163d7bd6019ab6f Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 10 Nov 2009 07:54:47 +0000 Subject: netdev: add netdev_continue_rcu This adds an RCU macro for continuing search, useful for some network devices like vlan. Signed-off-by: Stephen Hemminger Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ include/linux/rculist.h | 14 ++++++++++++++ 2 files changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 465add6c43e3..083b5989cecb 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1079,6 +1079,8 @@ extern rwlock_t dev_base_lock; /* Device list lock */ list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue(net, d) \ list_for_each_entry_continue(d, &(net)->dev_base_head, dev_list) +#define for_each_netdev_continue_rcu(net, d) \ + list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list) #define net_device_entry(lh) list_entry(lh, struct net_device, dev_list) static inline struct net_device *next_net_device(struct net_device *dev) diff --git a/include/linux/rculist.h b/include/linux/rculist.h index 5710f43bbc9e..1bf0f708c4fc 100644 --- a/include/linux/rculist.h +++ b/include/linux/rculist.h @@ -261,6 +261,20 @@ static inline void list_splice_init_rcu(struct list_head *list, prefetch((pos)->next), (pos) != (head); \ (pos) = rcu_dereference((pos)->next)) +/** + * list_for_each_entry_continue_rcu - continue iteration over list of given type + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Continue to iterate over list of given type, continuing after + * the current position. + */ +#define list_for_each_entry_continue_rcu(pos, head, member) \ + for (pos = list_entry_rcu(pos->member.next, typeof(*pos), member); \ + prefetch(pos->member.next), &pos->member != (head); \ + pos = list_entry_rcu(pos->member.next, typeof(*pos), member)) + /** * hlist_del_rcu - deletes entry from hash list without re-initialization * @n: the element to delete from the hash list. -- cgit v1.2.3 From 3491707a070c1183c709516b2f876f798c7a9a84 Mon Sep 17 00:00:00 2001 From: Rui Paulo Date: Mon, 9 Nov 2009 23:46:39 +0000 Subject: mac80211: update meshconf IE This updates the Mesh Configuration IE according to the latest draft (3.03). Notable changes include the simplified protocol IDs. Signed-off-by: Rui Paulo Signed-off-by: Javier Cardona Reviewed-by: Andrey Yurovsky Tested-by: Brian Cavagnolo Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 2 +- net/mac80211/ieee80211_i.h | 10 +++---- net/mac80211/mesh.c | 69 +++++++++++++++++++--------------------------- 3 files changed, 35 insertions(+), 46 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 0aa831467493..50c684db33c7 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -115,7 +115,7 @@ #define IEEE80211_MAX_SSID_LEN 32 #define IEEE80211_MAX_MESH_ID_LEN 32 -#define IEEE80211_MESH_CONFIG_LEN 24 +#define IEEE80211_MESH_CONFIG_LEN 7 #define IEEE80211_QOS_CTL_LEN 2 #define IEEE80211_QOS_CTL_TID_MASK 0x000F diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 1ef767366b77..1f4f88a8f80c 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -361,15 +361,15 @@ struct ieee80211_if_mesh { u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; size_t mesh_id_len; /* Active Path Selection Protocol Identifier */ - u8 mesh_pp_id[4]; + u8 mesh_pp_id; /* Active Path Selection Metric Identifier */ - u8 mesh_pm_id[4]; + u8 mesh_pm_id; /* Congestion Control Mode Identifier */ - u8 mesh_cc_id[4]; + u8 mesh_cc_id; /* Synchronization Protocol Identifier */ - u8 mesh_sp_id[4]; + u8 mesh_sp_id; /* Authentication Protocol Identifier */ - u8 mesh_auth_id[4]; + u8 mesh_auth_id; /* Local mesh Destination Sequence Number */ u32 dsn; /* Last used PREQ ID */ diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 9a733890eb47..a49a3374acb1 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -15,14 +15,14 @@ #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ) #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ) -#define PP_OFFSET 1 /* Path Selection Protocol */ -#define PM_OFFSET 5 /* Path Selection Metric */ -#define CC_OFFSET 9 /* Congestion Control Mode */ -#define SP_OFFSET 13 /* Synchronization Protocol */ -#define AUTH_OFFSET 17 /* Authentication Protocol */ -#define CAPAB_OFFSET 22 -#define CAPAB_ACCEPT_PLINKS 0x80 -#define CAPAB_FORWARDING 0x10 +#define MESHCONF_PP_OFFSET 0 /* Path Selection Protocol */ +#define MESHCONF_PM_OFFSET 1 /* Path Selection Metric */ +#define MESHCONF_CC_OFFSET 2 /* Congestion Control Mode */ +#define MESHCONF_SP_OFFSET 3 /* Synchronization Protocol */ +#define MESHCONF_AUTH_OFFSET 4 /* Authentication Protocol */ +#define MESHCONF_CAPAB_OFFSET 6 +#define MESHCONF_CAPAB_ACCEPT_PLINKS 0x01 +#define MESHCONF_CAPAB_FORWARDING 0x08 #define TMR_RUNNING_HK 0 #define TMR_RUNNING_MP 1 @@ -85,11 +85,12 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat */ if (ifmsh->mesh_id_len == ie->mesh_id_len && memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && - memcmp(ifmsh->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 && - memcmp(ifmsh->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 && - memcmp(ifmsh->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0 && - memcmp(ifmsh->mesh_sp_id, ie->mesh_config + SP_OFFSET, 4) == 0 && - memcmp(ifmsh->mesh_auth_id, ie->mesh_config + AUTH_OFFSET, 4) == 0) + (ifmsh->mesh_pp_id == *(ie->mesh_config + MESHCONF_PP_OFFSET))&& + (ifmsh->mesh_pm_id == *(ie->mesh_config + MESHCONF_PM_OFFSET))&& + (ifmsh->mesh_cc_id == *(ie->mesh_config + MESHCONF_CC_OFFSET))&& + (ifmsh->mesh_sp_id == *(ie->mesh_config + MESHCONF_SP_OFFSET))&& + (ifmsh->mesh_auth_id == *(ie->mesh_config + + MESHCONF_AUTH_OFFSET))) return true; return false; @@ -102,7 +103,8 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat */ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) { - return (*(ie->mesh_config + CAPAB_OFFSET) & CAPAB_ACCEPT_PLINKS) != 0; + return (*(ie->mesh_config + MESHCONF_CAPAB_OFFSET) & + MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; } /** @@ -128,18 +130,11 @@ void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata) void mesh_ids_set_default(struct ieee80211_if_mesh *sta) { - u8 oui[3] = {0x00, 0x0F, 0xAC}; - - memcpy(sta->mesh_pp_id, oui, sizeof(oui)); - memcpy(sta->mesh_pm_id, oui, sizeof(oui)); - memcpy(sta->mesh_cc_id, oui, sizeof(oui)); - memcpy(sta->mesh_sp_id, oui, sizeof(oui)); - memcpy(sta->mesh_auth_id, oui, sizeof(oui)); - sta->mesh_pp_id[sizeof(oui)] = 0; - sta->mesh_pm_id[sizeof(oui)] = 0; - sta->mesh_cc_id[sizeof(oui)] = 0xff; - sta->mesh_sp_id[sizeof(oui)] = 0xff; - sta->mesh_auth_id[sizeof(oui)] = 0x0; + sta->mesh_pp_id = 0; /* HWMP */ + sta->mesh_pm_id = 0; /* Airtime */ + sta->mesh_cc_id = 0; /* Disabled */ + sta->mesh_sp_id = 0; /* Neighbor Offset */ + sta->mesh_auth_id = 0; /* Disabled */ } int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) @@ -260,28 +255,21 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) pos = skb_put(skb, 2 + IEEE80211_MESH_CONFIG_LEN); *pos++ = WLAN_EID_MESH_CONFIG; *pos++ = IEEE80211_MESH_CONFIG_LEN; - /* Version */ - *pos++ = 1; /* Active path selection protocol ID */ - memcpy(pos, sdata->u.mesh.mesh_pp_id, 4); - pos += 4; + *pos++ = sdata->u.mesh.mesh_pp_id; /* Active path selection metric ID */ - memcpy(pos, sdata->u.mesh.mesh_pm_id, 4); - pos += 4; + *pos++ = sdata->u.mesh.mesh_pm_id; /* Congestion control mode identifier */ - memcpy(pos, sdata->u.mesh.mesh_cc_id, 4); - pos += 4; + *pos++ = sdata->u.mesh.mesh_cc_id; /* Synchronization protocol identifier */ - memcpy(pos, sdata->u.mesh.mesh_sp_id, 4); - pos += 4; + *pos++ = sdata->u.mesh.mesh_sp_id; /* Authentication Protocol identifier */ - memcpy(pos, sdata->u.mesh.mesh_auth_id, 4); - pos += 4; + *pos++ = sdata->u.mesh.mesh_auth_id; /* Mesh Formation Info */ memset(pos, 0x00, 1); @@ -289,8 +277,9 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) /* Mesh capability */ sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata); - *pos = CAPAB_FORWARDING; - *pos++ |= sdata->u.mesh.accepting_plinks ? CAPAB_ACCEPT_PLINKS : 0x00; + *pos = MESHCONF_CAPAB_FORWARDING; + *pos++ |= sdata->u.mesh.accepting_plinks ? + MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00; *pos++ = 0x00; return; -- cgit v1.2.3 From 8b787643ca0a5130c647109d77fe512f89cfa611 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 10 Nov 2009 18:53:10 +0100 Subject: nl80211: add a parameter for using 4-address frames on virtual interfaces Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- include/linux/nl80211.h | 4 ++++ include/net/cfg80211.h | 2 ++ net/wireless/nl80211.c | 11 +++++++++++ 3 files changed, 17 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 50afca3dcff1..203adef972cf 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -584,6 +584,8 @@ enum nl80211_commands { * changed then the list changed and the dump should be repeated * completely from scratch. * + * @NL80211_ATTR_4ADDR: Use 4-address frames on a virtual interface + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -714,6 +716,8 @@ enum nl80211_attrs { NL80211_ATTR_PID, + NL80211_ATTR_4ADDR, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index ff67865de231..1ee41e4a92e2 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -206,10 +206,12 @@ struct ieee80211_supported_band { * struct vif_params - describes virtual interface parameters * @mesh_id: mesh ID to use * @mesh_id_len: length of the mesh ID + * @use_4addr: use 4-address frames */ struct vif_params { u8 *mesh_id; int mesh_id_len; + int use_4addr; }; /** diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 8ed62b6c172b..8c8e4eae6a17 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -138,6 +138,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, [NL80211_ATTR_PID] = { .type = NLA_U32 }, + [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, }; /* policy for the attributes */ @@ -987,6 +988,13 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) change = true; } + if (info->attrs[NL80211_ATTR_4ADDR]) { + params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); + change = true; + } else { + params.use_4addr = -1; + } + if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { if (ntype != NL80211_IFTYPE_MONITOR) { err = -EINVAL; @@ -1053,6 +1061,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); } + if (info->attrs[NL80211_ATTR_4ADDR]) + params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); + err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, &flags); -- cgit v1.2.3 From 572a9d7b6fc7f20f573664063324c086be310c42 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Tue, 10 Nov 2009 06:14:14 +0000 Subject: net: allow to propagate errors through ->ndo_hard_start_xmit() Currently the ->ndo_hard_start_xmit() callbacks are only permitted to return one of the NETDEV_TX codes. This prevents any kind of error propagation for virtual devices, like queue congestion of the underlying device in case of layered devices, or unreachability in case of tunnels. This patches changes the NET_XMIT codes to avoid clashes with the NETDEV_TX codes and changes the two callers of dev_hard_start_xmit() to expect either errno codes, NET_XMIT codes or NETDEV_TX codes as return value. In case of qdisc_restart(), all non NETDEV_TX codes are mapped to NETDEV_TX_OK since no error propagation is possible when using qdiscs. In case of dev_queue_xmit(), the error is propagated upwards. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netdevice.h | 43 ++++++++++++++++++++++++++++++++----------- net/core/dev.c | 32 ++++++++++++++++++++++++++------ net/sched/sch_generic.c | 9 ++++++++- 3 files changed, 66 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 083b5989cecb..8b266390b9e2 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -63,27 +63,48 @@ struct wireless_dev; #define HAVE_FREE_NETDEV /* free_netdev() */ #define HAVE_NETDEV_PRIV /* netdev_priv() */ -#define NET_XMIT_SUCCESS 0 -#define NET_XMIT_DROP 1 /* skb dropped */ -#define NET_XMIT_CN 2 /* congestion notification */ -#define NET_XMIT_POLICED 3 /* skb is shot by police */ -#define NET_XMIT_MASK 0xFFFF /* qdisc flags in net/sch_generic.h */ +/* + * Transmit return codes: transmit return codes originate from three different + * namespaces: + * + * - qdisc return codes + * - driver transmit return codes + * - errno values + * + * Drivers are allowed to return any one of those in their hard_start_xmit() + * function. Real network devices commonly used with qdiscs should only return + * the driver transmit return codes though - when qdiscs are used, the actual + * transmission happens asynchronously, so the value is not propagated to + * higher layers. Virtual network devices transmit synchronously, in this case + * the driver transmit return codes are consumed by dev_queue_xmit(), all + * others are propagated to higher layers. + */ + +/* qdisc ->enqueue() return codes. */ +#define NET_XMIT_SUCCESS 0x00 +#define NET_XMIT_DROP 0x10 /* skb dropped */ +#define NET_XMIT_CN 0x20 /* congestion notification */ +#define NET_XMIT_POLICED 0x30 /* skb is shot by police */ +#define NET_XMIT_MASK 0xf0 /* qdisc flags in net/sch_generic.h */ /* Backlog congestion levels */ -#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ -#define NET_RX_DROP 1 /* packet dropped */ +#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ +#define NET_RX_DROP 1 /* packet dropped */ /* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It * indicates that the device will soon be dropping packets, or already drops * some packets of the same priority; prompting us to send less aggressively. */ -#define net_xmit_eval(e) ((e) == NET_XMIT_CN? 0 : (e)) +#define net_xmit_eval(e) ((e) == NET_XMIT_CN ? 0 : (e)) #define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0) /* Driver transmit return codes */ +#define NETDEV_TX_MASK 0xf + enum netdev_tx { - NETDEV_TX_OK = 0, /* driver took care of packet */ - NETDEV_TX_BUSY, /* driver tx path was busy*/ - NETDEV_TX_LOCKED = -1, /* driver tx lock was already taken */ + __NETDEV_TX_MIN = INT_MIN, /* make sure enum is signed */ + NETDEV_TX_OK = 0, /* driver took care of packet */ + NETDEV_TX_BUSY = 1, /* driver tx path was busy*/ + NETDEV_TX_LOCKED = 2, /* driver tx lock was already taken */ }; typedef enum netdev_tx netdev_tx_t; diff --git a/net/core/dev.c b/net/core/dev.c index ad8e320ceba7..548340b57296 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1757,7 +1757,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq) { const struct net_device_ops *ops = dev->netdev_ops; - int rc; + int rc = NETDEV_TX_OK; if (likely(!skb->next)) { if (!list_empty(&ptype_all)) @@ -1805,6 +1805,8 @@ gso: nskb->next = NULL; rc = ops->ndo_start_xmit(nskb, dev); if (unlikely(rc != NETDEV_TX_OK)) { + if (rc & ~NETDEV_TX_MASK) + goto out_kfree_gso_skb; nskb->next = skb->next; skb->next = nskb; return rc; @@ -1814,11 +1816,12 @@ gso: return NETDEV_TX_BUSY; } while (skb->next); - skb->destructor = DEV_GSO_CB(skb)->destructor; - +out_kfree_gso_skb: + if (likely(skb->next == NULL)) + skb->destructor = DEV_GSO_CB(skb)->destructor; out_kfree_skb: kfree_skb(skb); - return NETDEV_TX_OK; + return rc; } static u32 skb_tx_hashrnd; @@ -1906,6 +1909,23 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, return rc; } +static inline bool dev_xmit_complete(int rc) +{ + /* successful transmission */ + if (rc == NETDEV_TX_OK) + return true; + + /* error while transmitting, driver consumed skb */ + if (rc < 0) + return true; + + /* error while queueing to a different device, driver consumed skb */ + if (rc & NET_XMIT_MASK) + return true; + + return false; +} + /** * dev_queue_xmit - transmit a buffer * @skb: buffer to transmit @@ -2003,8 +2023,8 @@ gso: HARD_TX_LOCK(dev, txq, cpu); if (!netif_tx_queue_stopped(txq)) { - rc = NET_XMIT_SUCCESS; - if (!dev_hard_start_xmit(skb, dev, txq)) { + rc = dev_hard_start_xmit(skb, dev, txq); + if (dev_xmit_complete(rc)) { HARD_TX_UNLOCK(dev, txq); goto out; } diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 4ae6aa562f2b..b13821ad2fb6 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -120,8 +120,15 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q, HARD_TX_LOCK(dev, txq, smp_processor_id()); if (!netif_tx_queue_stopped(txq) && - !netif_tx_queue_frozen(txq)) + !netif_tx_queue_frozen(txq)) { ret = dev_hard_start_xmit(skb, dev, txq); + + /* an error implies that the skb was consumed */ + if (ret < 0) + ret = NETDEV_TX_OK; + /* all NET_XMIT codes map to NETDEV_TX_OK */ + ret &= ~NET_XMIT_MASK; + } HARD_TX_UNLOCK(dev, txq); spin_lock(root_lock); -- cgit v1.2.3 From 90a5e16992fa6105f7ebf3f29f5cf5feb1bbf7dc Mon Sep 17 00:00:00 2001 From: Rui Paulo Date: Wed, 11 Nov 2009 00:01:31 +0000 Subject: mac80211: implement RANN processing and forwarding Process the RANN (Root Annoucement) Frame and try to find the HWMP root station by sending a PREQ. Signed-off-by: Rui Paulo Signed-off-by: Javier Cardona Reviewed-by: Andrey Yurovsky Tested-by: Brian Cavagnolo Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 15 +++++++++ net/mac80211/ieee80211_i.h | 1 + net/mac80211/mesh_hwmp.c | 79 +++++++++++++++++++++++++++++++++++++++++----- net/mac80211/util.c | 4 +++ 4 files changed, 91 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 50c684db33c7..49b1abd2fe97 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -554,6 +554,20 @@ struct ieee80211_tim_ie { u8 virtual_map[1]; } __attribute__ ((packed)); +/** + * struct ieee80211_rann_ie + * + * This structure refers to "Root Announcement information element" + */ +struct ieee80211_rann_ie { + u8 rann_flags; + u8 rann_hopcount; + u8 rann_ttl; + u8 rann_addr[6]; + u32 rann_seq; + u32 rann_metric; +} __attribute__ ((packed)); + #define WLAN_SA_QUERY_TR_ID_LEN 2 struct ieee80211_mgmt { @@ -1070,6 +1084,7 @@ enum ieee80211_eid { WLAN_EID_PREQ = 68, WLAN_EID_PREP = 69, WLAN_EID_PERR = 70, + WLAN_EID_RANN = 49, /* compatible with FreeBSD */ /* 802.11h */ WLAN_EID_PWR_CONSTRAINT = 32, WLAN_EID_PWR_CAPABILITY = 33, diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 19b0c128d940..2a7d3d4067e1 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -804,6 +804,7 @@ struct ieee802_11_elems { u8 *preq; u8 *prep; u8 *perr; + struct ieee80211_rann_ie *rann; u8 *ch_switch_elem; u8 *country_elem; u8 *pwr_constr_elem; diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index db1a33098a88..7b9dd87cf9f2 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -28,6 +28,8 @@ /* Reply and forward */ #define MP_F_RF 0x2 +static void mesh_queue_preq(struct mesh_path *, u8); + static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae) { if (ae) @@ -81,7 +83,8 @@ static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae) enum mpath_frame_type { MPATH_PREQ = 0, MPATH_PREP, - MPATH_PERR + MPATH_PERR, + MPATH_RANN }; static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, @@ -109,7 +112,8 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, memcpy(mgmt->da, da, ETH_ALEN); memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - /* BSSID is left zeroed, wildcard value */ + /* BSSID == SA */ + memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); mgmt->u.action.category = MESH_PATH_SEL_CATEGORY; mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION; @@ -126,6 +130,12 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_PREP; break; + case MPATH_RANN: + mhwmp_dbg("sending RANN from %pM\n", orig_addr); + ie_len = sizeof(struct ieee80211_rann_ie); + pos = skb_put(skb, 2 + ie_len); + *pos++ = WLAN_EID_RANN; + break; default: kfree_skb(skb); return -ENOTSUPP; @@ -143,8 +153,10 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, pos += ETH_ALEN; memcpy(pos, &orig_dsn, 4); pos += 4; - memcpy(pos, &lifetime, 4); - pos += 4; + if (action != MPATH_RANN) { + memcpy(pos, &lifetime, 4); + pos += 4; + } memcpy(pos, &metric, 4); pos += 4; if (action == MPATH_PREQ) { @@ -152,9 +164,11 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, *pos++ = 1; *pos++ = dst_flags; } - memcpy(pos, dst, ETH_ALEN); - pos += ETH_ALEN; - memcpy(pos, &dst_dsn, 4); + if (action != MPATH_RANN) { + memcpy(pos, dst, ETH_ALEN); + pos += ETH_ALEN; + memcpy(pos, &dst_dsn, 4); + } ieee80211_tx_skb(sdata, skb, 1); return 0; @@ -610,6 +624,54 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); } +static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, + struct ieee80211_rann_ie *rann) +{ + struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + struct mesh_path *mpath; + u8 *ta; + u8 ttl, flags, hopcount; + u8 *orig_addr; + u32 orig_dsn, metric; + + ta = mgmt->sa; + ttl = rann->rann_ttl; + if (ttl <= 1) { + ifmsh->mshstats.dropped_frames_ttl++; + return; + } + ttl--; + flags = rann->rann_flags; + orig_addr = rann->rann_addr; + orig_dsn = rann->rann_seq; + hopcount = rann->rann_hopcount; + metric = rann->rann_metric; + mhwmp_dbg("received RANN from %pM\n", orig_addr); + + rcu_read_lock(); + mpath = mesh_path_lookup(orig_addr, sdata); + if (!mpath) { + mesh_path_add(orig_addr, sdata); + mpath = mesh_path_lookup(orig_addr, sdata); + if (!mpath) { + rcu_read_unlock(); + sdata->u.mesh.mshstats.dropped_frames_no_route++; + return; + } + mesh_queue_preq(mpath, + PREQ_Q_F_START | PREQ_Q_F_REFRESH); + } + if (mpath->dsn < orig_dsn) { + mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr, + cpu_to_le32(orig_dsn), + 0, NULL, 0, sdata->dev->broadcast, + hopcount, ttl, 0, cpu_to_le32(metric), + 0, sdata); + mpath->dsn = orig_dsn; + } + rcu_read_unlock(); +} void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata, @@ -654,7 +716,8 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata, return; hwmp_perr_frame_process(sdata, mgmt, elems.perr); } - + if (elems.rann) + hwmp_rann_frame_process(sdata, mgmt, elems.rann); } /** diff --git a/net/mac80211/util.c b/net/mac80211/util.c index aedbaaa067e6..da86e1592f8c 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -685,6 +685,10 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, elems->perr = pos; elems->perr_len = elen; break; + case WLAN_EID_RANN: + if (elen >= sizeof(struct ieee80211_rann_ie)) + elems->rann = (void *)pos; + break; case WLAN_EID_CHANNEL_SWITCH: elems->ch_switch_elem = pos; elems->ch_switch_elem_len = elen; -- cgit v1.2.3 From d19b3bf6384e66ac6e11a61ee31ed2cfe149f4d8 Mon Sep 17 00:00:00 2001 From: Rui Paulo Date: Mon, 9 Nov 2009 23:46:55 +0000 Subject: mac80211: replace "destination" with "target" to follow the spec Resulting object files have the same MD5 as before. Signed-off-by: Rui Paulo Signed-off-by: Javier Cardona Reviewed-by: Andrey Yurovsky Tested-by: Brian Cavagnolo Signed-off-by: John W. Linville --- include/linux/nl80211.h | 8 +- include/net/cfg80211.h | 8 +- net/mac80211/cfg.c | 8 +- net/mac80211/ieee80211_i.h | 10 +- net/mac80211/mesh.c | 2 +- net/mac80211/mesh.h | 10 +- net/mac80211/mesh_hwmp.c | 221 ++++++++++++++++++++++---------------------- net/mac80211/mesh_pathtbl.c | 12 +-- net/wireless/nl80211.c | 6 +- 9 files changed, 144 insertions(+), 141 deletions(-) (limited to 'include/linux') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 203adef972cf..7a0bd6ea6f63 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -899,14 +899,14 @@ enum nl80211_sta_info { * * @NL80211_MPATH_FLAG_ACTIVE: the mesh path is active * @NL80211_MPATH_FLAG_RESOLVING: the mesh path discovery process is running - * @NL80211_MPATH_FLAG_DSN_VALID: the mesh path contains a valid DSN + * @NL80211_MPATH_FLAG_SN_VALID: the mesh path contains a valid SN * @NL80211_MPATH_FLAG_FIXED: the mesh path has been manually set * @NL80211_MPATH_FLAG_RESOLVED: the mesh path discovery process succeeded */ enum nl80211_mpath_flags { NL80211_MPATH_FLAG_ACTIVE = 1<<0, NL80211_MPATH_FLAG_RESOLVING = 1<<1, - NL80211_MPATH_FLAG_DSN_VALID = 1<<2, + NL80211_MPATH_FLAG_SN_VALID = 1<<2, NL80211_MPATH_FLAG_FIXED = 1<<3, NL80211_MPATH_FLAG_RESOLVED = 1<<4, }; @@ -919,7 +919,7 @@ enum nl80211_mpath_flags { * * @__NL80211_MPATH_INFO_INVALID: attribute number 0 is reserved * @NL80211_ATTR_MPATH_FRAME_QLEN: number of queued frames for this destination - * @NL80211_ATTR_MPATH_DSN: destination sequence number + * @NL80211_ATTR_MPATH_SN: destination sequence number * @NL80211_ATTR_MPATH_METRIC: metric (cost) of this mesh path * @NL80211_ATTR_MPATH_EXPTIME: expiration time for the path, in msec from now * @NL80211_ATTR_MPATH_FLAGS: mesh path flags, enumerated in @@ -930,7 +930,7 @@ enum nl80211_mpath_flags { enum nl80211_mpath_info { __NL80211_MPATH_INFO_INVALID, NL80211_MPATH_INFO_FRAME_QLEN, - NL80211_MPATH_INFO_DSN, + NL80211_MPATH_INFO_SN, NL80211_MPATH_INFO_METRIC, NL80211_MPATH_INFO_EXPTIME, NL80211_MPATH_INFO_FLAGS, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 1ee41e4a92e2..7d0ae9c18286 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -420,7 +420,7 @@ enum monitor_flags { * in during get_station() or dump_station(). * * MPATH_INFO_FRAME_QLEN: @frame_qlen filled - * MPATH_INFO_DSN: @dsn filled + * MPATH_INFO_SN: @sn filled * MPATH_INFO_METRIC: @metric filled * MPATH_INFO_EXPTIME: @exptime filled * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled @@ -429,7 +429,7 @@ enum monitor_flags { */ enum mpath_info_flags { MPATH_INFO_FRAME_QLEN = BIT(0), - MPATH_INFO_DSN = BIT(1), + MPATH_INFO_SN = BIT(1), MPATH_INFO_METRIC = BIT(2), MPATH_INFO_EXPTIME = BIT(3), MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), @@ -444,7 +444,7 @@ enum mpath_info_flags { * * @filled: bitfield of flags from &enum mpath_info_flags * @frame_qlen: number of queued frames for this destination - * @dsn: destination sequence number + * @sn: target sequence number * @metric: metric (cost) of this mesh path * @exptime: expiration time for the mesh path from now, in msecs * @flags: mesh path flags @@ -458,7 +458,7 @@ enum mpath_info_flags { struct mpath_info { u32 filled; u32 frame_qlen; - u32 dsn; + u32 sn; u32 metric; u32 exptime; u32 discovery_timeout; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 576b86f81d1b..81053587e72b 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -935,7 +935,7 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, pinfo->generation = mesh_paths_generation; pinfo->filled = MPATH_INFO_FRAME_QLEN | - MPATH_INFO_DSN | + MPATH_INFO_SN | MPATH_INFO_METRIC | MPATH_INFO_EXPTIME | MPATH_INFO_DISCOVERY_TIMEOUT | @@ -943,7 +943,7 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, MPATH_INFO_FLAGS; pinfo->frame_qlen = mpath->frame_queue.qlen; - pinfo->dsn = mpath->dsn; + pinfo->sn = mpath->sn; pinfo->metric = mpath->metric; if (time_before(jiffies, mpath->exp_time)) pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); @@ -955,8 +955,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; if (mpath->flags & MESH_PATH_RESOLVING) pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; - if (mpath->flags & MESH_PATH_DSN_VALID) - pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID; + if (mpath->flags & MESH_PATH_SN_VALID) + pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; if (mpath->flags & MESH_PATH_FIXED) pinfo->flags |= NL80211_MPATH_FLAG_FIXED; if (mpath->flags & MESH_PATH_RESOLVING) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 2a7d3d4067e1..fb54ddb9b27d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -373,14 +373,14 @@ struct ieee80211_if_mesh { u8 mesh_sp_id; /* Authentication Protocol Identifier */ u8 mesh_auth_id; - /* Local mesh Destination Sequence Number */ - u32 dsn; + /* Local mesh Sequence Number */ + u32 sn; /* Last used PREQ ID */ u32 preq_id; atomic_t mpaths; - /* Timestamp of last DSN update */ - unsigned long last_dsn_update; - /* Timestamp of last DSN sent */ + /* Timestamp of last SN update */ + unsigned long last_sn_update; + /* Timestamp of last SN sent */ unsigned long last_preq; struct mesh_rmc *rmc; spinlock_t mesh_preq_queue_lock; diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 222a31338390..0f3e1147ec4f 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -672,7 +672,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) MESH_MIN_DISCOVERY_TIMEOUT; ifmsh->accepting_plinks = true; ifmsh->preq_id = 0; - ifmsh->dsn = 0; + ifmsh->sn = 0; atomic_set(&ifmsh->mpaths, 0); mesh_rmc_init(sdata); ifmsh->last_preq = jiffies; diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 1d534c702406..ee687add3927 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -26,7 +26,7 @@ * * @MESH_PATH_ACTIVE: the mesh path can be used for forwarding * @MESH_PATH_RESOLVING: the discovery process is running for this mesh path - * @MESH_PATH_DSN_VALID: the mesh path contains a valid destination sequence + * @MESH_PATH_SN_VALID: the mesh path contains a valid destination sequence * number * @MESH_PATH_FIXED: the mesh path has been manually set and should not be * modified @@ -38,7 +38,7 @@ enum mesh_path_flags { MESH_PATH_ACTIVE = BIT(0), MESH_PATH_RESOLVING = BIT(1), - MESH_PATH_DSN_VALID = BIT(2), + MESH_PATH_SN_VALID = BIT(2), MESH_PATH_FIXED = BIT(3), MESH_PATH_RESOLVED = BIT(4), }; @@ -70,7 +70,7 @@ enum mesh_deferred_task_flags { * @timer: mesh path discovery timer * @frame_queue: pending queue for frames sent to this destination while the * path is unresolved - * @dsn: destination sequence number of the destination + * @sn: target sequence number * @metric: current metric to this destination * @hop_count: hops to destination * @exp_time: in jiffies, when the path will expire or when it expired @@ -94,7 +94,7 @@ struct mesh_path { struct timer_list timer; struct sk_buff_head frame_queue; struct rcu_head rcu; - u32 dsn; + u32 sn; u32 metric; u8 hop_count; unsigned long exp_time; @@ -280,7 +280,7 @@ void mesh_mpp_table_grow(void); u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, struct mesh_table *tbl); /* Mesh paths */ -int mesh_path_error_tx(u8 ttl, u8 *dest, __le32 dest_dsn, __le16 dest_rcode, +int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, __le16 target_rcode, u8 *ra, struct ieee80211_sub_if_data *sdata); void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta); void mesh_path_flush_pending(struct mesh_path *mpath); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 7d36f3a741a5..f03a27dfd616 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -56,33 +56,33 @@ static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae) #define PREQ_IE_TTL(x) (*(x + 2)) #define PREQ_IE_PREQ_ID(x) u32_field_get(x, 3, 0) #define PREQ_IE_ORIG_ADDR(x) (x + 7) -#define PREQ_IE_ORIG_DSN(x) u32_field_get(x, 13, 0); +#define PREQ_IE_ORIG_SN(x) u32_field_get(x, 13, 0); #define PREQ_IE_LIFETIME(x) u32_field_get(x, 17, AE_F_SET(x)); #define PREQ_IE_METRIC(x) u32_field_get(x, 21, AE_F_SET(x)); -#define PREQ_IE_DST_F(x) (*(AE_F_SET(x) ? x + 32 : x + 26)) -#define PREQ_IE_DST_ADDR(x) (AE_F_SET(x) ? x + 33 : x + 27) -#define PREQ_IE_DST_DSN(x) u32_field_get(x, 33, AE_F_SET(x)); +#define PREQ_IE_TARGET_F(x) (*(AE_F_SET(x) ? x + 32 : x + 26)) +#define PREQ_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 33 : x + 27) +#define PREQ_IE_TARGET_SN(x) u32_field_get(x, 33, AE_F_SET(x)); #define PREP_IE_FLAGS(x) PREQ_IE_FLAGS(x) #define PREP_IE_HOPCOUNT(x) PREQ_IE_HOPCOUNT(x) #define PREP_IE_TTL(x) PREQ_IE_TTL(x) #define PREP_IE_ORIG_ADDR(x) (x + 3) -#define PREP_IE_ORIG_DSN(x) u32_field_get(x, 9, 0); +#define PREP_IE_ORIG_SN(x) u32_field_get(x, 9, 0); #define PREP_IE_LIFETIME(x) u32_field_get(x, 13, AE_F_SET(x)); #define PREP_IE_METRIC(x) u32_field_get(x, 17, AE_F_SET(x)); -#define PREP_IE_DST_ADDR(x) (AE_F_SET(x) ? x + 27 : x + 21) -#define PREP_IE_DST_DSN(x) u32_field_get(x, 27, AE_F_SET(x)); +#define PREP_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 27 : x + 21) +#define PREP_IE_TARGET_SN(x) u32_field_get(x, 27, AE_F_SET(x)); #define PERR_IE_TTL(x) (*(x)) -#define PERR_IE_DST_FLAGS(x) (*(x + 2)) -#define PERR_IE_DST_ADDR(x) (x + 3) -#define PERR_IE_DST_DSN(x) u32_field_get(x, 9, 0); -#define PERR_IE_DST_RCODE(x) u16_field_get(x, 13, 0); +#define PERR_IE_TARGET_FLAGS(x) (*(x + 2)) +#define PERR_IE_TARGET_ADDR(x) (x + 3) +#define PERR_IE_TARGET_SN(x) u32_field_get(x, 9, 0); +#define PERR_IE_TARGET_RCODE(x) u16_field_get(x, 13, 0); #define MSEC_TO_TU(x) (x*1000/1024) -#define DSN_GT(x, y) ((long) (y) - (long) (x) < 0) -#define DSN_LT(x, y) ((long) (x) - (long) (y) < 0) +#define SN_GT(x, y) ((long) (y) - (long) (x) < 0) +#define SN_LT(x, y) ((long) (x) - (long) (y) < 0) #define net_traversal_jiffies(s) \ msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime) @@ -102,9 +102,10 @@ enum mpath_frame_type { }; static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, - u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst, - __le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime, - __le32 metric, __le32 preq_id, struct ieee80211_sub_if_data *sdata) + u8 *orig_addr, __le32 orig_sn, u8 target_flags, u8 *target, + __le32 target_sn, u8 *da, u8 hop_count, u8 ttl,__le32 lifetime, + __le32 metric, __le32 preq_id, + struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400); @@ -133,13 +134,13 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, switch (action) { case MPATH_PREQ: - mhwmp_dbg("sending PREQ to %pM\n", dst); + mhwmp_dbg("sending PREQ to %pM\n", target); ie_len = 37; pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_PREQ; break; case MPATH_PREP: - mhwmp_dbg("sending PREP to %pM\n", dst); + mhwmp_dbg("sending PREP to %pM\n", target); ie_len = 31; pos = skb_put(skb, 2 + ie_len); *pos++ = WLAN_EID_PREP; @@ -165,7 +166,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, } memcpy(pos, orig_addr, ETH_ALEN); pos += ETH_ALEN; - memcpy(pos, &orig_dsn, 4); + memcpy(pos, &orig_sn, 4); pos += 4; if (action != MPATH_RANN) { memcpy(pos, &lifetime, 4); @@ -176,12 +177,12 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, if (action == MPATH_PREQ) { /* destination count */ *pos++ = 1; - *pos++ = dst_flags; + *pos++ = target_flags; } if (action != MPATH_RANN) { - memcpy(pos, dst, ETH_ALEN); + memcpy(pos, target, ETH_ALEN); pos += ETH_ALEN; - memcpy(pos, &dst_dsn, 4); + memcpy(pos, &target_sn, 4); } ieee80211_tx_skb(sdata, skb, 1); @@ -191,12 +192,14 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, /** * mesh_send_path error - Sends a PERR mesh management frame * - * @dst: broken destination - * @dst_dsn: dsn of the broken destination + * @target: broken destination + * @target_sn: SN of the broken destination + * @target_rcode: reason code for this PERR * @ra: node this frame is addressed to */ -int mesh_path_error_tx(u8 ttl, u8 *dst, __le32 dst_dsn, __le16 dst_rcode, - u8 *ra, struct ieee80211_sub_if_data *sdata) +int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, + __le16 target_rcode, u8 *ra, + struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400); @@ -234,16 +237,16 @@ int mesh_path_error_tx(u8 ttl, u8 *dst, __le32 dst_dsn, __le16 dst_rcode, * bit 2 is set if we have a reason code */ *pos = 0; - if (!dst_dsn) + if (!target_sn) *pos |= MP_F_USN; - if (dst_rcode) + if (target_rcode) *pos |= MP_F_RCODE; pos++; - memcpy(pos, dst, ETH_ALEN); + memcpy(pos, target, ETH_ALEN); pos += ETH_ALEN; - memcpy(pos, &dst_dsn, 4); + memcpy(pos, &target_sn, 4); pos += 4; - memcpy(pos, &dst_rcode, 2); + memcpy(pos, &target_rcode, 2); ieee80211_tx_skb(sdata, skb, 1); return 0; @@ -324,7 +327,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, struct sta_info *sta; bool fresh_info; u8 *orig_addr, *ta; - u32 orig_dsn, orig_metric; + u32 orig_sn, orig_metric; unsigned long orig_lifetime, exp_time; u32 last_hop_metric, new_metric; bool process = true; @@ -343,7 +346,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, switch (action) { case MPATH_PREQ: orig_addr = PREQ_IE_ORIG_ADDR(hwmp_ie); - orig_dsn = PREQ_IE_ORIG_DSN(hwmp_ie); + orig_sn = PREQ_IE_ORIG_SN(hwmp_ie); orig_lifetime = PREQ_IE_LIFETIME(hwmp_ie); orig_metric = PREQ_IE_METRIC(hwmp_ie); break; @@ -356,7 +359,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, * information from both PREQ and PREP frames. */ orig_addr = PREP_IE_ORIG_ADDR(hwmp_ie); - orig_dsn = PREP_IE_ORIG_DSN(hwmp_ie); + orig_sn = PREP_IE_ORIG_SN(hwmp_ie); orig_lifetime = PREP_IE_LIFETIME(hwmp_ie); orig_metric = PREP_IE_METRIC(hwmp_ie); break; @@ -382,9 +385,9 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, if (mpath->flags & MESH_PATH_FIXED) fresh_info = false; else if ((mpath->flags & MESH_PATH_ACTIVE) && - (mpath->flags & MESH_PATH_DSN_VALID)) { - if (DSN_GT(mpath->dsn, orig_dsn) || - (mpath->dsn == orig_dsn && + (mpath->flags & MESH_PATH_SN_VALID)) { + if (SN_GT(mpath->sn, orig_sn) || + (mpath->sn == orig_sn && action == MPATH_PREQ && new_metric > mpath->metric)) { process = false; @@ -403,9 +406,9 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, if (fresh_info) { mesh_path_assign_nexthop(mpath, sta); - mpath->flags |= MESH_PATH_DSN_VALID; + mpath->flags |= MESH_PATH_SN_VALID; mpath->metric = new_metric; - mpath->dsn = orig_dsn; + mpath->sn = orig_sn; mpath->exp_time = time_after(mpath->exp_time, exp_time) ? mpath->exp_time : exp_time; mesh_path_activate(mpath); @@ -444,7 +447,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, if (fresh_info) { mesh_path_assign_nexthop(mpath, sta); - mpath->flags &= ~MESH_PATH_DSN_VALID; + mpath->flags &= ~MESH_PATH_SN_VALID; mpath->metric = last_hop_metric; mpath->exp_time = time_after(mpath->exp_time, exp_time) ? mpath->exp_time : exp_time; @@ -466,47 +469,47 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct mesh_path *mpath; - u8 *dst_addr, *orig_addr; - u8 dst_flags, ttl; - u32 orig_dsn, dst_dsn, lifetime; + u8 *target_addr, *orig_addr; + u8 target_flags, ttl; + u32 orig_sn, target_sn, lifetime; bool reply = false; bool forward = true; - /* Update destination DSN, if present */ - dst_addr = PREQ_IE_DST_ADDR(preq_elem); + /* Update target SN, if present */ + target_addr = PREQ_IE_TARGET_ADDR(preq_elem); orig_addr = PREQ_IE_ORIG_ADDR(preq_elem); - dst_dsn = PREQ_IE_DST_DSN(preq_elem); - orig_dsn = PREQ_IE_ORIG_DSN(preq_elem); - dst_flags = PREQ_IE_DST_F(preq_elem); + target_sn = PREQ_IE_TARGET_SN(preq_elem); + orig_sn = PREQ_IE_ORIG_SN(preq_elem); + target_flags = PREQ_IE_TARGET_F(preq_elem); mhwmp_dbg("received PREQ from %pM\n", orig_addr); - if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) { + if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) { mhwmp_dbg("PREQ is for us\n"); forward = false; reply = true; metric = 0; - if (time_after(jiffies, ifmsh->last_dsn_update + + if (time_after(jiffies, ifmsh->last_sn_update + net_traversal_jiffies(sdata)) || - time_before(jiffies, ifmsh->last_dsn_update)) { - dst_dsn = ++ifmsh->dsn; - ifmsh->last_dsn_update = jiffies; + time_before(jiffies, ifmsh->last_sn_update)) { + target_sn = ++ifmsh->sn; + ifmsh->last_sn_update = jiffies; } } else { rcu_read_lock(); - mpath = mesh_path_lookup(dst_addr, sdata); + mpath = mesh_path_lookup(target_addr, sdata); if (mpath) { - if ((!(mpath->flags & MESH_PATH_DSN_VALID)) || - DSN_LT(mpath->dsn, dst_dsn)) { - mpath->dsn = dst_dsn; - mpath->flags |= MESH_PATH_DSN_VALID; - } else if ((!(dst_flags & MP_F_DO)) && + if ((!(mpath->flags & MESH_PATH_SN_VALID)) || + SN_LT(mpath->sn, target_sn)) { + mpath->sn = target_sn; + mpath->flags |= MESH_PATH_SN_VALID; + } else if ((!(target_flags & MP_F_DO)) && (mpath->flags & MESH_PATH_ACTIVE)) { reply = true; metric = mpath->metric; - dst_dsn = mpath->dsn; - if (dst_flags & MP_F_RF) - dst_flags |= MP_F_DO; + target_sn = mpath->sn; + if (target_flags & MP_F_RF) + target_flags |= MP_F_DO; else forward = false; } @@ -519,9 +522,9 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, ttl = ifmsh->mshcfg.dot11MeshTTL; if (ttl != 0) { mhwmp_dbg("replying to the PREQ\n"); - mesh_path_sel_frame_tx(MPATH_PREP, 0, dst_addr, - cpu_to_le32(dst_dsn), 0, orig_addr, - cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl, + mesh_path_sel_frame_tx(MPATH_PREP, 0, target_addr, + cpu_to_le32(target_sn), 0, orig_addr, + cpu_to_le32(orig_sn), mgmt->sa, 0, ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), 0, sdata); } else @@ -544,8 +547,8 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, preq_id = PREQ_IE_PREQ_ID(preq_elem); hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1; mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr, - cpu_to_le32(orig_dsn), dst_flags, dst_addr, - cpu_to_le32(dst_dsn), sdata->dev->broadcast, + cpu_to_le32(orig_sn), target_flags, target_addr, + cpu_to_le32(target_sn), sdata->dev->broadcast, hopcount, ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), cpu_to_le32(preq_id), sdata); @@ -560,10 +563,10 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, u8 *prep_elem, u32 metric) { struct mesh_path *mpath; - u8 *dst_addr, *orig_addr; + u8 *target_addr, *orig_addr; u8 ttl, hopcount, flags; u8 next_hop[ETH_ALEN]; - u32 dst_dsn, orig_dsn, lifetime; + u32 target_sn, orig_sn, lifetime; mhwmp_dbg("received PREP from %pM\n", PREP_IE_ORIG_ADDR(prep_elem)); @@ -573,8 +576,8 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, * which corresponds with the originator of the PREQ which this PREP * replies */ - dst_addr = PREP_IE_DST_ADDR(prep_elem); - if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) + target_addr = PREP_IE_TARGET_ADDR(prep_elem); + if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) /* destination, no forwarding required */ return; @@ -585,7 +588,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, } rcu_read_lock(); - mpath = mesh_path_lookup(dst_addr, sdata); + mpath = mesh_path_lookup(target_addr, sdata); if (mpath) spin_lock_bh(&mpath->state_lock); else @@ -601,13 +604,13 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, lifetime = PREP_IE_LIFETIME(prep_elem); hopcount = PREP_IE_HOPCOUNT(prep_elem) + 1; orig_addr = PREP_IE_ORIG_ADDR(prep_elem); - dst_dsn = PREP_IE_DST_DSN(prep_elem); - orig_dsn = PREP_IE_ORIG_DSN(prep_elem); + target_sn = PREP_IE_TARGET_SN(prep_elem); + orig_sn = PREP_IE_ORIG_SN(prep_elem); mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr, - cpu_to_le32(orig_dsn), 0, dst_addr, - cpu_to_le32(dst_dsn), mpath->next_hop->sta.addr, hopcount, ttl, - cpu_to_le32(lifetime), cpu_to_le32(metric), + cpu_to_le32(orig_sn), 0, target_addr, + cpu_to_le32(target_sn), mpath->next_hop->sta.addr, hopcount, + ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), 0, sdata); rcu_read_unlock(); @@ -627,10 +630,10 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct mesh_path *mpath; u8 ttl; - u8 *ta, *dst_addr; - u8 dst_flags; - u32 dst_dsn; - u16 dst_rcode; + u8 *ta, *target_addr; + u8 target_flags; + u32 target_sn; + u16 target_rcode; ta = mgmt->sa; ttl = PERR_IE_TTL(perr_elem); @@ -639,24 +642,24 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata, return; } ttl--; - dst_flags = PERR_IE_DST_FLAGS(perr_elem); - dst_addr = PERR_IE_DST_ADDR(perr_elem); - dst_dsn = PERR_IE_DST_DSN(perr_elem); - dst_rcode = PERR_IE_DST_RCODE(perr_elem); + target_flags = PERR_IE_TARGET_FLAGS(perr_elem); + target_addr = PERR_IE_TARGET_ADDR(perr_elem); + target_sn = PERR_IE_TARGET_SN(perr_elem); + target_rcode = PERR_IE_TARGET_RCODE(perr_elem); rcu_read_lock(); - mpath = mesh_path_lookup(dst_addr, sdata); + mpath = mesh_path_lookup(target_addr, sdata); if (mpath) { spin_lock_bh(&mpath->state_lock); if (mpath->flags & MESH_PATH_ACTIVE && memcmp(ta, mpath->next_hop->sta.addr, ETH_ALEN) == 0 && - (!(mpath->flags & MESH_PATH_DSN_VALID) || - DSN_GT(dst_dsn, mpath->dsn))) { + (!(mpath->flags & MESH_PATH_SN_VALID) || + SN_GT(target_sn, mpath->sn))) { mpath->flags &= ~MESH_PATH_ACTIVE; - mpath->dsn = dst_dsn; + mpath->sn = target_sn; spin_unlock_bh(&mpath->state_lock); - mesh_path_error_tx(ttl, dst_addr, cpu_to_le32(dst_dsn), - cpu_to_le16(dst_rcode), + mesh_path_error_tx(ttl, target_addr, cpu_to_le32(target_sn), + cpu_to_le16(target_rcode), sdata->dev->broadcast, sdata); } else spin_unlock_bh(&mpath->state_lock); @@ -673,7 +676,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, u8 *ta; u8 ttl, flags, hopcount; u8 *orig_addr; - u32 orig_dsn, metric; + u32 orig_sn, metric; ta = mgmt->sa; ttl = rann->rann_ttl; @@ -684,7 +687,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, ttl--; flags = rann->rann_flags; orig_addr = rann->rann_addr; - orig_dsn = rann->rann_seq; + orig_sn = rann->rann_seq; hopcount = rann->rann_hopcount; hopcount++; metric = rann->rann_metric; @@ -703,14 +706,14 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata, mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH); } - if (mpath->dsn < orig_dsn) { + if (mpath->sn < orig_sn) { mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr, - cpu_to_le32(orig_dsn), + cpu_to_le32(orig_sn), 0, NULL, 0, sdata->dev->broadcast, hopcount, ttl, 0, cpu_to_le32(metric + mpath->metric), 0, sdata); - mpath->dsn = orig_dsn; + mpath->sn = orig_sn; } rcu_read_unlock(); } @@ -823,7 +826,7 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct mesh_preq_queue *preq_node; struct mesh_path *mpath; - u8 ttl, dst_flags; + u8 ttl, target_flags; u32 lifetime; spin_lock_bh(&ifmsh->mesh_preq_queue_lock); @@ -865,11 +868,11 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata) ifmsh->last_preq = jiffies; - if (time_after(jiffies, ifmsh->last_dsn_update + + if (time_after(jiffies, ifmsh->last_sn_update + net_traversal_jiffies(sdata)) || - time_before(jiffies, ifmsh->last_dsn_update)) { - ++ifmsh->dsn; - sdata->u.mesh.last_dsn_update = jiffies; + time_before(jiffies, ifmsh->last_sn_update)) { + ++ifmsh->sn; + sdata->u.mesh.last_sn_update = jiffies; } lifetime = default_lifetime(sdata); ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; @@ -880,14 +883,14 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata) } if (preq_node->flags & PREQ_Q_F_REFRESH) - dst_flags = MP_F_DO; + target_flags = MP_F_DO; else - dst_flags = MP_F_RF; + target_flags = MP_F_RF; spin_unlock_bh(&mpath->state_lock); mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->dev->dev_addr, - cpu_to_le32(ifmsh->dsn), dst_flags, mpath->dst, - cpu_to_le32(mpath->dsn), sdata->dev->broadcast, 0, + cpu_to_le32(ifmsh->sn), target_flags, mpath->dst, + cpu_to_le32(mpath->sn), sdata->dev->broadcast, 0, ttl, cpu_to_le32(lifetime), 0, cpu_to_le32(ifmsh->preq_id++), sdata); mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout); @@ -914,15 +917,15 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct sk_buff *skb_to_free = NULL; struct mesh_path *mpath; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u8 *dst_addr = hdr->addr3; + u8 *target_addr = hdr->addr3; int err = 0; rcu_read_lock(); - mpath = mesh_path_lookup(dst_addr, sdata); + mpath = mesh_path_lookup(target_addr, sdata); if (!mpath) { - mesh_path_add(dst_addr, sdata); - mpath = mesh_path_lookup(dst_addr, sdata); + mesh_path_add(target_addr, sdata); + mpath = mesh_path_lookup(target_addr, sdata); if (!mpath) { sdata->u.mesh.mshstats.dropped_frames_no_route++; err = -ENOSPC; diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 5d541235ca2f..2cebdf52b7bc 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -463,10 +463,10 @@ void mesh_plink_broken(struct sta_info *sta) mpath->flags & MESH_PATH_ACTIVE && !(mpath->flags & MESH_PATH_FIXED)) { mpath->flags &= ~MESH_PATH_ACTIVE; - ++mpath->dsn; + ++mpath->sn; spin_unlock_bh(&mpath->state_lock); mesh_path_error_tx(MESH_TTL, mpath->dst, - cpu_to_le32(mpath->dsn), + cpu_to_le32(mpath->sn), PERR_RCODE_DEST_UNREACH, sdata->dev->broadcast, sdata); } else @@ -602,7 +602,7 @@ void mesh_path_discard_frame(struct sk_buff *skb, { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct mesh_path *mpath; - u32 dsn = 0; + u32 sn = 0; if (memcmp(hdr->addr4, sdata->dev->dev_addr, ETH_ALEN) != 0) { u8 *ra, *da; @@ -611,8 +611,8 @@ void mesh_path_discard_frame(struct sk_buff *skb, ra = hdr->addr1; mpath = mesh_path_lookup(da, sdata); if (mpath) - dsn = ++mpath->dsn; - mesh_path_error_tx(MESH_TTL, skb->data, cpu_to_le32(dsn), + sn = ++mpath->sn; + mesh_path_error_tx(MESH_TTL, skb->data, cpu_to_le32(sn), PERR_RCODE_NO_ROUTE, ra, sdata); } @@ -648,7 +648,7 @@ void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop) { spin_lock_bh(&mpath->state_lock); mesh_path_assign_nexthop(mpath, next_hop); - mpath->dsn = 0xffff; + mpath->sn = 0xffff; mpath->metric = 0; mpath->hop_count = 0; mpath->exp_time = 0; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 8c8e4eae6a17..7c1999872503 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2116,9 +2116,9 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, if (pinfo->filled & MPATH_INFO_FRAME_QLEN) NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, pinfo->frame_qlen); - if (pinfo->filled & MPATH_INFO_DSN) - NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, - pinfo->dsn); + if (pinfo->filled & MPATH_INFO_SN) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, + pinfo->sn); if (pinfo->filled & MPATH_INFO_METRIC) NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, pinfo->metric); -- cgit v1.2.3 From 63c5723bc3af8d4e86984dd4ff0c78218de418d0 Mon Sep 17 00:00:00 2001 From: Rui Paulo Date: Mon, 9 Nov 2009 23:46:57 +0000 Subject: mac80211: add nl80211/cfg80211 handling of the new mesh root mode option. Signed-off-by: Rui Paulo Signed-off-by: Javier Cardona Reviewed-by: Andrey Yurovsky Tested-by: Brian Cavagnolo Signed-off-by: John W. Linville --- include/linux/nl80211.h | 3 +++ include/net/cfg80211.h | 1 + net/mac80211/cfg.c | 7 +++++++ net/mac80211/debugfs_netdev.c | 2 ++ net/mac80211/mesh.c | 13 +++++++++++++ net/mac80211/mesh.h | 1 + net/wireless/nl80211.c | 6 ++++++ 7 files changed, 33 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 7a0bd6ea6f63..d2f276de9abe 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -1200,6 +1200,8 @@ enum nl80211_mntr_flags { * @NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME: The interval of time (in TUs) * that it takes for an HWMP information element to propagate across the mesh * + * @NL80211_MESHCONF_ROOTMODE: whether root mode is enabled or not + * * @NL80211_MESHCONF_ATTR_MAX: highest possible mesh configuration attribute * * @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use @@ -1219,6 +1221,7 @@ enum nl80211_meshconf_params { NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, + NL80211_MESHCONF_HWMP_ROOTMODE, /* keep last */ __NL80211_MESHCONF_ATTR_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 7d0ae9c18286..0e4c51fc63e5 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -508,6 +508,7 @@ struct mesh_config { u32 dot11MeshHWMPactivePathTimeout; u16 dot11MeshHWMPpreqMinInterval; u16 dot11MeshHWMPnetDiameterTraversalTime; + u8 dot11MeshHWMPRootMode; }; /** diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 81053587e72b..7f18c8fa1880 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1029,7 +1029,10 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy, { struct mesh_config *conf; struct ieee80211_sub_if_data *sdata; + struct ieee80211_if_mesh *ifmsh; + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + ifmsh = &sdata->u.mesh; /* Set the config options which we are interested in setting */ conf = &(sdata->u.mesh.mshcfg); @@ -1064,6 +1067,10 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy, mask)) conf->dot11MeshHWMPnetDiameterTraversalTime = nconf->dot11MeshHWMPnetDiameterTraversalTime; + if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { + conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; + ieee80211_mesh_root_setup(ifmsh); + } return 0; } diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 8782264f49e7..472b2039906c 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -149,6 +149,8 @@ IEEE80211_IF_FILE(path_refresh_time, u.mesh.mshcfg.path_refresh_time, DEC); IEEE80211_IF_FILE(min_discovery_timeout, u.mesh.mshcfg.min_discovery_timeout, DEC); +IEEE80211_IF_FILE(dot11MeshHWMPRootMode, + u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); #endif diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 88dcfe3030b1..05955dc6b3d3 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -373,6 +373,17 @@ static void ieee80211_mesh_path_root_timer(unsigned long data) ieee80211_queue_work(&local->hw, &ifmsh->work); } +void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh) +{ + if (ifmsh->mshcfg.dot11MeshHWMPRootMode) + set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); + else { + clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags); + /* stop running timer */ + del_timer_sync(&ifmsh->mesh_path_root_timer); + } +} + /** * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame * @hdr: 802.11 frame header @@ -503,6 +514,7 @@ void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata) add_timer(&ifmsh->mesh_path_timer); if (test_and_clear_bit(TMR_RUNNING_MPR, &ifmsh->timers_running)) add_timer(&ifmsh->mesh_path_root_timer); + ieee80211_mesh_root_setup(ifmsh); } #endif @@ -512,6 +524,7 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); + ieee80211_mesh_root_setup(ifmsh); ieee80211_queue_work(&local->hw, &ifmsh->work); sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL; ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON | diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 00ee84258196..5ad6975bf28c 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -242,6 +242,7 @@ ieee80211_rx_result ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata); +void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh); /* Mesh paths */ int mesh_nexthop_lookup(struct sk_buff *skb, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7c1999872503..17bcad69428d 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2616,6 +2616,8 @@ static int nl80211_get_mesh_params(struct sk_buff *skb, cur_params.dot11MeshHWMPpreqMinInterval); NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, cur_params.dot11MeshHWMPnetDiameterTraversalTime); + NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, + cur_params.dot11MeshHWMPRootMode); nla_nest_end(msg, pinfoattr); genlmsg_end(msg, hdr); err = genlmsg_reply(msg, info); @@ -2726,6 +2728,10 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) dot11MeshHWMPnetDiameterTraversalTime, mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, nla_get_u16); + FILL_IN_MESH_PARAM_IF_SET(tb, cfg, + dot11MeshHWMPRootMode, mask, + NL80211_MESHCONF_HWMP_ROOTMODE, + nla_get_u8); /* Apply changes */ err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); -- cgit v1.2.3 From 61fa713c751683da915fa0c1aa502be85822c357 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Wed, 11 Nov 2009 12:25:40 +0100 Subject: cfg80211: return channel noise via survey API This patch implements the NL80211_CMD_GET_SURVEY command and an get_survey() ops that a driver can implement. The goal of this command is to allow a drivers to report channel survey data (e.g. channel noise, channel occupation). For now, only the mechanism to report back channel noise has been implemented. In future, there will either be a survey-trigger command --- or the existing scan-trigger command will be enhanced. This will allow user-space to request survey for arbitrary channels. Note: any driver that cannot report channel noise should not report any value at all, e.g. made-up -92 dBm. Signed-off-by: Holger Schurig Signed-off-by: John W. Linville --- include/linux/nl80211.h | 34 ++++++++++++++++ include/net/cfg80211.h | 34 ++++++++++++++++ net/wireless/nl80211.c | 105 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 173 insertions(+) (limited to 'include/linux') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index d2f276de9abe..45db17f81aa3 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -160,6 +160,11 @@ * @NL80211_CMD_SCAN_ABORTED: scan was aborted, for unspecified reasons, * partial scan results may be available * + * @NL80211_CMD_GET_SURVEY: get survey resuls, e.g. channel occupation + * or noise level + * @NL80211_CMD_NEW_SURVEY_RESULTS: survey data notification (as a reply to + * NL80211_CMD_GET_SURVEY and on the "scan" multicast group) + * * @NL80211_CMD_REG_CHANGE: indicates to userspace the regulatory domain * has been changed and provides details of the request information * that caused the change such as who initiated the regulatory request @@ -341,6 +346,9 @@ enum nl80211_commands { NL80211_CMD_SET_WIPHY_NETNS, + NL80211_CMD_GET_SURVEY, + NL80211_CMD_NEW_SURVEY_RESULTS, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ @@ -586,6 +594,10 @@ enum nl80211_commands { * * @NL80211_ATTR_4ADDR: Use 4-address frames on a virtual interface * + * @NL80211_ATTR_SURVEY_INFO: survey information about a channel, part of + * the survey response for %NL80211_CMD_GET_SURVEY, nested attribute + * containing info as possible, see &enum survey_info. + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -718,6 +730,8 @@ enum nl80211_attrs { NL80211_ATTR_4ADDR, + NL80211_ATTR_SURVEY_INFO, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -1120,6 +1134,26 @@ enum nl80211_reg_rule_flags { NL80211_RRF_NO_IBSS = 1<<8, }; +/** + * enum nl80211_survey_info - survey information + * + * These attribute types are used with %NL80211_ATTR_SURVEY_INFO + * when getting information about a survey. + * + * @__NL80211_SURVEY_INFO_INVALID: attribute number 0 is reserved + * @NL80211_SURVEY_INFO_FREQUENCY: center frequency of channel + * @NL80211_SURVEY_INFO_NOISE: noise level of channel (u8, dBm) + */ +enum nl80211_survey_info { + __NL80211_SURVEY_INFO_INVALID, + NL80211_SURVEY_INFO_FREQUENCY, + NL80211_SURVEY_INFO_NOISE, + + /* keep last */ + __NL80211_SURVEY_INFO_AFTER_LAST, + NL80211_SURVEY_INFO_MAX = __NL80211_SURVEY_INFO_AFTER_LAST - 1 +}; + /** * enum nl80211_mntr_flags - monitor configuration flags * diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 0e4c51fc63e5..21710fc17eaf 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -234,6 +234,35 @@ struct key_params { u32 cipher; }; +/** + * enum survey_info_flags - survey information flags + * + * Used by the driver to indicate which info in &struct survey_info + * it has filled in during the get_survey(). + */ +enum survey_info_flags { + SURVEY_INFO_NOISE_DBM = 1<<0, +}; + +/** + * struct survey_info - channel survey response + * + * Used by dump_survey() to report back per-channel survey information. + * + * @channel: the channel this survey record reports, mandatory + * @filled: bitflag of flags from &enum survey_info_flags + * @noise: channel noise in dBm. This and all following fields are + * optional + * + * This structure can later be expanded with things like + * channel duty cycle etc. + */ +struct survey_info { + struct ieee80211_channel *channel; + u32 filled; + s8 noise; +}; + /** * struct beacon_parameters - beacon parameters * @@ -944,6 +973,8 @@ struct cfg80211_bitrate_mask { * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting * functions to adjust rfkill hw state * + * @dump_survey: get site survey information. + * * @testmode_cmd: run a test mode command */ struct cfg80211_ops { @@ -1063,6 +1094,9 @@ struct cfg80211_ops { const u8 *peer, const struct cfg80211_bitrate_mask *mask); + int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, + int idx, struct survey_info *info); + /* some temporary stuff to finish wext */ int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, bool enabled, int timeout); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4dc139cdba5c..5c8b3bfada4b 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3245,6 +3245,106 @@ static int nl80211_dump_scan(struct sk_buff *skb, return err; } +static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, + int flags, struct net_device *dev, + struct survey_info *survey) +{ + void *hdr; + struct nlattr *infoattr; + + /* Survey without a channel doesn't make sense */ + if (!survey->channel) + return -EINVAL; + + hdr = nl80211hdr_put(msg, pid, seq, flags, + NL80211_CMD_NEW_SURVEY_RESULTS); + if (!hdr) + return -ENOMEM; + + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); + + infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); + if (!infoattr) + goto nla_put_failure; + + NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, + survey->channel->center_freq); + if (survey->filled & SURVEY_INFO_NOISE_DBM) + NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, + survey->noise); + + nla_nest_end(msg, infoattr); + + return genlmsg_end(msg, hdr); + + nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int nl80211_dump_survey(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct survey_info survey; + struct cfg80211_registered_device *dev; + struct net_device *netdev; + int ifidx = cb->args[0]; + int survey_idx = cb->args[1]; + int res; + + if (!ifidx) + ifidx = nl80211_get_ifidx(cb); + if (ifidx < 0) + return ifidx; + cb->args[0] = ifidx; + + rtnl_lock(); + + netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); + if (!netdev) { + res = -ENODEV; + goto out_rtnl; + } + + dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); + if (IS_ERR(dev)) { + res = PTR_ERR(dev); + goto out_rtnl; + } + + if (!dev->ops->dump_survey) { + res = -EOPNOTSUPP; + goto out_err; + } + + while (1) { + res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, + &survey); + if (res == -ENOENT) + break; + if (res) + goto out_err; + + if (nl80211_send_survey(skb, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + netdev, + &survey) < 0) + goto out; + survey_idx++; + } + + out: + cb->args[1] = survey_idx; + res = skb->len; + out_err: + cfg80211_unlock_rdev(dev); + out_rtnl: + rtnl_unlock(); + + return res; +} + static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) { return auth_type <= NL80211_AUTHTYPE_MAX; @@ -4322,6 +4422,11 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, }, + { + .cmd = NL80211_CMD_GET_SURVEY, + .policy = nl80211_policy, + .dumpit = nl80211_dump_survey, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { .name = "mlme", -- cgit v1.2.3 From bee7ca9ec03a26676ea2b1c28dc4039348eff3e1 Mon Sep 17 00:00:00 2001 From: William Allen Simpson Date: Tue, 10 Nov 2009 09:51:18 +0000 Subject: net: TCP_MSS_DEFAULT, TCP_MSS_DESIRED Define two symbols needed in both kernel and user space. Remove old (somewhat incorrect) kernel variant that wasn't used in most cases. Default should apply to both RMSS and SMSS (RFC2581). Replace numeric constants with defined symbols. Stand-alone patch, originally developed for TCPCT. Signed-off-by: William.Allen.Simpson@gmail.com Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/tcp.h | 6 ++++++ include/net/tcp.h | 3 --- net/ipv4/tcp_input.c | 4 ++-- net/ipv4/tcp_ipv4.c | 6 +++--- net/ipv4/tcp_minisocks.c | 2 +- net/ipv6/tcp_ipv6.c | 2 +- 6 files changed, 13 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index eeecb8547a2a..32d7d77b4a01 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -81,6 +81,12 @@ enum { TCP_DATA_OFFSET = __cpu_to_be32(0xF0000000) }; +/* + * TCP general constants + */ +#define TCP_MSS_DEFAULT 536U /* IPv4 (RFC1122, RFC2581) */ +#define TCP_MSS_DESIRED 1220U /* IPv6 (tunneled), EDNS0 (RFC3226) */ + /* TCP socket options */ #define TCP_NODELAY 1 /* Turn off Nagle's algorithm. */ #define TCP_MAXSEG 2 /* Limit MSS */ diff --git a/include/net/tcp.h b/include/net/tcp.h index bf20f88fd033..325bfcf5c934 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -62,9 +62,6 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo); /* Minimal accepted MSS. It is (60+60+8) - (20+20). */ #define TCP_MIN_MSS 88U -/* Minimal RCV_MSS. */ -#define TCP_MIN_RCVMSS 536U - /* The least MTU to use for probing */ #define TCP_BASE_MSS 512 diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index be0c5bf7bfca..cc306ac6eb51 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -140,7 +140,7 @@ static void tcp_measure_rcv_mss(struct sock *sk, const struct sk_buff *skb) * "len" is invariant segment length, including TCP header. */ len += skb->data - skb_transport_header(skb); - if (len >= TCP_MIN_RCVMSS + sizeof(struct tcphdr) || + if (len >= TCP_MSS_DEFAULT + sizeof(struct tcphdr) || /* If PSH is not set, packet should be * full sized, provided peer TCP is not badly broken. * This observation (if it is correct 8)) allows @@ -411,7 +411,7 @@ void tcp_initialize_rcv_mss(struct sock *sk) unsigned int hint = min_t(unsigned int, tp->advmss, tp->mss_cache); hint = min(hint, tp->rcv_wnd / 2); - hint = min(hint, TCP_MIN_RCVMSS); + hint = min(hint, TCP_MSS_DEFAULT); hint = max(hint, TCP_MIN_MSS); inet_csk(sk)->icsk_ack.rcv_mss = hint; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 657ae334f125..cf7f2086e6e0 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -217,7 +217,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (inet->opt) inet_csk(sk)->icsk_ext_hdr_len = inet->opt->optlen; - tp->rx_opt.mss_clamp = 536; + tp->rx_opt.mss_clamp = TCP_MSS_DEFAULT; /* Socket identity is still unknown (sport may be zero). * However we set state to SYN-SENT and not releasing socket @@ -1268,7 +1268,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) goto drop_and_free; tcp_clear_options(&tmp_opt); - tmp_opt.mss_clamp = 536; + tmp_opt.mss_clamp = TCP_MSS_DEFAULT; tmp_opt.user_mss = tcp_sk(sk)->rx_opt.user_mss; tcp_parse_options(skb, &tmp_opt, 0, dst); @@ -1815,7 +1815,7 @@ static int tcp_v4_init_sock(struct sock *sk) */ tp->snd_ssthresh = TCP_INFINITE_SSTHRESH; tp->snd_cwnd_clamp = ~0; - tp->mss_cache = 536; + tp->mss_cache = TCP_MSS_DEFAULT; tp->reordering = sysctl_tcp_reordering; icsk->icsk_ca_ops = &tcp_init_congestion_ops; diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index a9d34e224cb6..4be22280e6b3 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -476,7 +476,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, if (newtp->af_specific->md5_lookup(sk, newsk)) newtp->tcp_header_len += TCPOLEN_MD5SIG_ALIGNED; #endif - if (skb->len >= TCP_MIN_RCVMSS+newtp->tcp_header_len) + if (skb->len >= TCP_MSS_DEFAULT + newtp->tcp_header_len) newicsk->icsk_ack.last_seg_size = skb->len - newtp->tcp_header_len; newtp->rx_opt.mss_clamp = req->mss; TCP_ECN_openreq_child(newtp, req); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 696a22f034e8..de709091b26d 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1851,7 +1851,7 @@ static int tcp_v6_init_sock(struct sock *sk) */ tp->snd_ssthresh = TCP_INFINITE_SSTHRESH; tp->snd_cwnd_clamp = ~0; - tp->mss_cache = 536; + tp->mss_cache = TCP_MSS_DEFAULT; tp->reordering = sysctl_tcp_reordering; -- cgit v1.2.3 From ce81b76a39835a721cd168e0c0bcfe7132f1f66b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 11 Nov 2009 17:34:30 +0000 Subject: ipv6: use RCU to walk list of network devices No longer need read_lock(&dev_base_lock), use RCU instead. We also can avoid taking references on inet6_dev structs. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 10 ++++++++++ net/ipv6/anycast.c | 29 +++++++++++++-------------- net/ipv6/mcast.c | 51 +++++++++++++++++++++-------------------------- 3 files changed, 47 insertions(+), 43 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 8b266390b9e2..61425d0c6123 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1114,6 +1114,16 @@ static inline struct net_device *next_net_device(struct net_device *dev) return lh == &net->dev_base_head ? NULL : net_device_entry(lh); } +static inline struct net_device *next_net_device_rcu(struct net_device *dev) +{ + struct list_head *lh; + struct net *net; + + net = dev_net(dev); + lh = rcu_dereference(dev->dev_list.next); + return lh == &net->dev_base_head ? NULL : net_device_entry(lh); +} + static inline struct net_device *first_net_device(struct net *net) { return list_empty(&net->dev_base_head) ? NULL : diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index 2f00ca83f049..f1c74c8ef9de 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -431,9 +431,9 @@ static inline struct ifacaddr6 *ac6_get_first(struct seq_file *seq) struct net *net = seq_file_net(seq); state->idev = NULL; - for_each_netdev(net, state->dev) { + for_each_netdev_rcu(net, state->dev) { struct inet6_dev *idev; - idev = in6_dev_get(state->dev); + idev = __in6_dev_get(state->dev); if (!idev) continue; read_lock_bh(&idev->lock); @@ -443,7 +443,6 @@ static inline struct ifacaddr6 *ac6_get_first(struct seq_file *seq) break; } read_unlock_bh(&idev->lock); - in6_dev_put(idev); } return im; } @@ -454,16 +453,15 @@ static struct ifacaddr6 *ac6_get_next(struct seq_file *seq, struct ifacaddr6 *im im = im->aca_next; while (!im) { - if (likely(state->idev != NULL)) { + if (likely(state->idev != NULL)) read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); - } - state->dev = next_net_device(state->dev); + + state->dev = next_net_device_rcu(state->dev); if (!state->dev) { state->idev = NULL; break; } - state->idev = in6_dev_get(state->dev); + state->idev = __in6_dev_get(state->dev); if (!state->idev) continue; read_lock_bh(&state->idev->lock); @@ -482,29 +480,30 @@ static struct ifacaddr6 *ac6_get_idx(struct seq_file *seq, loff_t pos) } static void *ac6_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(dev_base_lock) + __acquires(RCU) { - read_lock(&dev_base_lock); + rcu_read_lock(); return ac6_get_idx(seq, *pos); } static void *ac6_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct ifacaddr6 *im; - im = ac6_get_next(seq, v); + struct ifacaddr6 *im = ac6_get_next(seq, v); + ++*pos; return im; } static void ac6_seq_stop(struct seq_file *seq, void *v) - __releases(dev_base_lock) + __releases(RCU) { struct ac6_iter_state *state = ac6_seq_private(seq); + if (likely(state->idev != NULL)) { read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); + state->idev = NULL; } - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static int ac6_seq_show(struct seq_file *seq, void *v) diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index f9fcf690bd5d..1f9c44442e65 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -2375,9 +2375,9 @@ static inline struct ifmcaddr6 *igmp6_mc_get_first(struct seq_file *seq) struct net *net = seq_file_net(seq); state->idev = NULL; - for_each_netdev(net, state->dev) { + for_each_netdev_rcu(net, state->dev) { struct inet6_dev *idev; - idev = in6_dev_get(state->dev); + idev = __in6_dev_get(state->dev); if (!idev) continue; read_lock_bh(&idev->lock); @@ -2387,7 +2387,6 @@ static inline struct ifmcaddr6 *igmp6_mc_get_first(struct seq_file *seq) break; } read_unlock_bh(&idev->lock); - in6_dev_put(idev); } return im; } @@ -2398,16 +2397,15 @@ static struct ifmcaddr6 *igmp6_mc_get_next(struct seq_file *seq, struct ifmcaddr im = im->next; while (!im) { - if (likely(state->idev != NULL)) { + if (likely(state->idev != NULL)) read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); - } - state->dev = next_net_device(state->dev); + + state->dev = next_net_device_rcu(state->dev); if (!state->dev) { state->idev = NULL; break; } - state->idev = in6_dev_get(state->dev); + state->idev = __in6_dev_get(state->dev); if (!state->idev) continue; read_lock_bh(&state->idev->lock); @@ -2426,31 +2424,31 @@ static struct ifmcaddr6 *igmp6_mc_get_idx(struct seq_file *seq, loff_t pos) } static void *igmp6_mc_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(dev_base_lock) + __acquires(RCU) { - read_lock(&dev_base_lock); + rcu_read_lock(); return igmp6_mc_get_idx(seq, *pos); } static void *igmp6_mc_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct ifmcaddr6 *im; - im = igmp6_mc_get_next(seq, v); + struct ifmcaddr6 *im = igmp6_mc_get_next(seq, v); + ++*pos; return im; } static void igmp6_mc_seq_stop(struct seq_file *seq, void *v) - __releases(dev_base_lock) + __releases(RCU) { struct igmp6_mc_iter_state *state = igmp6_mc_seq_private(seq); + if (likely(state->idev != NULL)) { read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); state->idev = NULL; } state->dev = NULL; - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static int igmp6_mc_seq_show(struct seq_file *seq, void *v) @@ -2507,9 +2505,9 @@ static inline struct ip6_sf_list *igmp6_mcf_get_first(struct seq_file *seq) state->idev = NULL; state->im = NULL; - for_each_netdev(net, state->dev) { + for_each_netdev_rcu(net, state->dev) { struct inet6_dev *idev; - idev = in6_dev_get(state->dev); + idev = __in6_dev_get(state->dev); if (unlikely(idev == NULL)) continue; read_lock_bh(&idev->lock); @@ -2525,7 +2523,6 @@ static inline struct ip6_sf_list *igmp6_mcf_get_first(struct seq_file *seq) spin_unlock_bh(&im->mca_lock); } read_unlock_bh(&idev->lock); - in6_dev_put(idev); } return psf; } @@ -2539,16 +2536,15 @@ static struct ip6_sf_list *igmp6_mcf_get_next(struct seq_file *seq, struct ip6_s spin_unlock_bh(&state->im->mca_lock); state->im = state->im->next; while (!state->im) { - if (likely(state->idev != NULL)) { + if (likely(state->idev != NULL)) read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); - } - state->dev = next_net_device(state->dev); + + state->dev = next_net_device_rcu(state->dev); if (!state->dev) { state->idev = NULL; goto out; } - state->idev = in6_dev_get(state->dev); + state->idev = __in6_dev_get(state->dev); if (!state->idev) continue; read_lock_bh(&state->idev->lock); @@ -2573,9 +2569,9 @@ static struct ip6_sf_list *igmp6_mcf_get_idx(struct seq_file *seq, loff_t pos) } static void *igmp6_mcf_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(dev_base_lock) + __acquires(RCU) { - read_lock(&dev_base_lock); + rcu_read_lock(); return *pos ? igmp6_mcf_get_idx(seq, *pos - 1) : SEQ_START_TOKEN; } @@ -2591,7 +2587,7 @@ static void *igmp6_mcf_seq_next(struct seq_file *seq, void *v, loff_t *pos) } static void igmp6_mcf_seq_stop(struct seq_file *seq, void *v) - __releases(dev_base_lock) + __releases(RCU) { struct igmp6_mcf_iter_state *state = igmp6_mcf_seq_private(seq); if (likely(state->im != NULL)) { @@ -2600,11 +2596,10 @@ static void igmp6_mcf_seq_stop(struct seq_file *seq, void *v) } if (likely(state->idev != NULL)) { read_unlock_bh(&state->idev->lock); - in6_dev_put(state->idev); state->idev = NULL; } state->dev = NULL; - read_unlock(&dev_base_lock); + rcu_read_unlock(); } static int igmp6_mcf_seq_show(struct seq_file *seq, void *v) -- cgit v1.2.3 From 9a1654ba0b50402a6bd03c7b0fe9b0200a5ea7b1 Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Sun, 15 Nov 2009 07:20:12 +0000 Subject: net: Optimize hard_start_xmit() return checking Recent changes in the TX error propagation require additional checking and masking of values returned from hard_start_xmit(), mainly to separate cases where skb was consumed. This aim can be simplified by changing the order of NETDEV_TX and NET_XMIT codes, because the latter are treated similarly to negative (ERRNO) values. After this change much simpler dev_xmit_complete() is also used in sch_direct_xmit(), so it is moved to netdevice.h. Additionally NET_RX definitions in netdevice.h are moved up from between TX codes to avoid confusion while reading the TX comment. Signed-off-by: Jarek Poplawski Signed-off-by: David S. Miller --- include/linux/netdevice.h | 42 ++++++++++++++++++++++++++++++------------ net/core/dev.c | 17 ----------------- net/sched/sch_generic.c | 23 +++++------------------ 3 files changed, 35 insertions(+), 47 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 61425d0c6123..7043f85e643d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -63,6 +63,10 @@ struct wireless_dev; #define HAVE_FREE_NETDEV /* free_netdev() */ #define HAVE_NETDEV_PRIV /* netdev_priv() */ +/* Backlog congestion levels */ +#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ +#define NET_RX_DROP 1 /* packet dropped */ + /* * Transmit return codes: transmit return codes originate from three different * namespaces: @@ -82,14 +86,10 @@ struct wireless_dev; /* qdisc ->enqueue() return codes. */ #define NET_XMIT_SUCCESS 0x00 -#define NET_XMIT_DROP 0x10 /* skb dropped */ -#define NET_XMIT_CN 0x20 /* congestion notification */ -#define NET_XMIT_POLICED 0x30 /* skb is shot by police */ -#define NET_XMIT_MASK 0xf0 /* qdisc flags in net/sch_generic.h */ - -/* Backlog congestion levels */ -#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ -#define NET_RX_DROP 1 /* packet dropped */ +#define NET_XMIT_DROP 0x01 /* skb dropped */ +#define NET_XMIT_CN 0x02 /* congestion notification */ +#define NET_XMIT_POLICED 0x03 /* skb is shot by police */ +#define NET_XMIT_MASK 0x0f /* qdisc flags in net/sch_generic.h */ /* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It * indicates that the device will soon be dropping packets, or already drops @@ -98,16 +98,34 @@ struct wireless_dev; #define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0) /* Driver transmit return codes */ -#define NETDEV_TX_MASK 0xf +#define NETDEV_TX_MASK 0xf0 enum netdev_tx { __NETDEV_TX_MIN = INT_MIN, /* make sure enum is signed */ - NETDEV_TX_OK = 0, /* driver took care of packet */ - NETDEV_TX_BUSY = 1, /* driver tx path was busy*/ - NETDEV_TX_LOCKED = 2, /* driver tx lock was already taken */ + NETDEV_TX_OK = 0x00, /* driver took care of packet */ + NETDEV_TX_BUSY = 0x10, /* driver tx path was busy*/ + NETDEV_TX_LOCKED = 0x20, /* driver tx lock was already taken */ }; typedef enum netdev_tx netdev_tx_t; +/* + * Current order: NETDEV_TX_MASK > NET_XMIT_MASK >= 0 is significant; + * hard_start_xmit() return < NET_XMIT_MASK means skb was consumed. + */ +static inline bool dev_xmit_complete(int rc) +{ + /* + * Positive cases with an skb consumed by a driver: + * - successful transmission (rc == NETDEV_TX_OK) + * - error while transmitting (rc < 0) + * - error while queueing to a different device (rc & NET_XMIT_MASK) + */ + if (likely(rc < NET_XMIT_MASK)) + return true; + + return false; +} + #endif #define MAX_ADDR_LEN 32 /* Largest hardware address length */ diff --git a/net/core/dev.c b/net/core/dev.c index 32045df1da5c..4b24d79414e3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1924,23 +1924,6 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, return rc; } -static inline bool dev_xmit_complete(int rc) -{ - /* successful transmission */ - if (rc == NETDEV_TX_OK) - return true; - - /* error while transmitting, driver consumed skb */ - if (rc < 0) - return true; - - /* error while queueing to a different device, driver consumed skb */ - if (rc & NET_XMIT_MASK) - return true; - - return false; -} - /** * dev_queue_xmit - transmit a buffer * @skb: buffer to transmit diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index b13821ad2fb6..5173c1e1b19c 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -119,39 +119,26 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q, spin_unlock(root_lock); HARD_TX_LOCK(dev, txq, smp_processor_id()); - if (!netif_tx_queue_stopped(txq) && - !netif_tx_queue_frozen(txq)) { + if (!netif_tx_queue_stopped(txq) && !netif_tx_queue_frozen(txq)) ret = dev_hard_start_xmit(skb, dev, txq); - /* an error implies that the skb was consumed */ - if (ret < 0) - ret = NETDEV_TX_OK; - /* all NET_XMIT codes map to NETDEV_TX_OK */ - ret &= ~NET_XMIT_MASK; - } HARD_TX_UNLOCK(dev, txq); spin_lock(root_lock); - switch (ret) { - case NETDEV_TX_OK: - /* Driver sent out skb successfully */ + if (dev_xmit_complete(ret)) { + /* Driver sent out skb successfully or skb was consumed */ ret = qdisc_qlen(q); - break; - - case NETDEV_TX_LOCKED: + } else if (ret == NETDEV_TX_LOCKED) { /* Driver try lock failed */ ret = handle_dev_cpu_collision(skb, txq, q); - break; - - default: + } else { /* Driver returned NETDEV_TX_BUSY - requeue skb */ if (unlikely (ret != NETDEV_TX_BUSY && net_ratelimit())) printk(KERN_WARNING "BUG %s code %d qlen %d\n", dev->name, ret, q->q.qlen); ret = dev_requeue_skb(skb, q); - break; } if (ret && (netif_tx_queue_stopped(txq) || -- cgit v1.2.3 From b9f5d52670c27e71f04c466aee77e3a2eeca8080 Mon Sep 17 00:00:00 2001 From: Marin Mitov Date: Fri, 13 Nov 2009 07:58:41 +0000 Subject: remove deprecated and not used: print_mac() The function print_mac in net/ethernet/eth.c is marked __deprecated and not used. Remove it. Signed-off-by: Marin Mitov Signed-off-by: David S. Miller --- include/linux/if_ether.h | 4 ---- net/ethernet/eth.c | 7 ------- 2 files changed, 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index 580b6004d00e..005e1525ab86 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -136,10 +136,6 @@ extern struct ctl_table ether_table[]; extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); -/* - * Display a 6 byte device address (MAC) in a readable format. - */ -extern char *print_mac(char *buf, const unsigned char *addr) __deprecated; #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" #define MAC_BUF_SIZE 18 #define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 5a883affecd3..dd3db88f8f0a 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -393,10 +393,3 @@ ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len) return ((ssize_t) l); } EXPORT_SYMBOL(sysfs_format_mac); - -char *print_mac(char *buf, const unsigned char *addr) -{ - _format_mac_addr(buf, MAC_BUF_SIZE, addr, ETH_ALEN); - return buf; -} -EXPORT_SYMBOL(print_mac); -- cgit v1.2.3 From c85e9d7739fc8d879c4293ea020760926d6f87cd Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Tue, 17 Nov 2009 10:16:32 -0500 Subject: znet: fix build failure from i82593.h relocation znet was including "wireless/i82593.h" (which is a bit wierd), and I missed that when I relocated i82593.h to drivers/staging/wavelan. Since I don't have ISA turned-on in my normal .config, I didn't see the build failures -- mea culpa! Signed-off-by: John W. Linville --- drivers/net/znet.c | 3 +- drivers/staging/wavelan/i82593.h | 229 --------------------------------- drivers/staging/wavelan/wavelan_cs.p.h | 2 +- include/linux/i82593.h | 229 +++++++++++++++++++++++++++++++++ 4 files changed, 231 insertions(+), 232 deletions(-) delete mode 100644 drivers/staging/wavelan/i82593.h create mode 100644 include/linux/i82593.h (limited to 'include/linux') diff --git a/drivers/net/znet.c b/drivers/net/znet.c index b42347333750..443c4eee28c1 100644 --- a/drivers/net/znet.c +++ b/drivers/net/znet.c @@ -103,8 +103,7 @@ #include #include -/* This include could be elsewhere, since it is not wireless specific */ -#include "wireless/i82593.h" +#include static char version[] __initdata = "znet.c:v1.02 9/23/94 becker@scyld.com\n"; diff --git a/drivers/staging/wavelan/i82593.h b/drivers/staging/wavelan/i82593.h deleted file mode 100644 index afac5c7a323d..000000000000 --- a/drivers/staging/wavelan/i82593.h +++ /dev/null @@ -1,229 +0,0 @@ -/* - * Definitions for Intel 82593 CSMA/CD Core LAN Controller - * The definitions are taken from the 1992 users manual with Intel - * order number 297125-001. - * - * /usr/src/pc/RCS/i82593.h,v 1.1 1996/07/17 15:23:12 root Exp - * - * Copyright 1994, Anders Klemets - * - * HISTORY - * i82593.h,v - * Revision 1.4 2005/11/4 09:15:00 baroniunas - * Modified copyright with permission of author as follows: - * - * "If I82539.H is the only file with my copyright statement - * that is included in the Source Forge project, then you have - * my approval to change the copyright statement to be a GPL - * license, in the way you proposed on October 10." - * - * Revision 1.1 1996/07/17 15:23:12 root - * Initial revision - * - * Revision 1.3 1995/04/05 15:13:58 adj - * Initial alpha release - * - * Revision 1.2 1994/06/16 23:57:31 klemets - * Mirrored all the fields in the configuration block. - * - * Revision 1.1 1994/06/02 20:25:34 klemets - * Initial revision - * - * - */ -#ifndef _I82593_H -#define _I82593_H - -/* Intel 82593 CSMA/CD Core LAN Controller */ - -/* Port 0 Command Register definitions */ - -/* Execution operations */ -#define OP0_NOP 0 /* CHNL = 0 */ -#define OP0_SWIT_TO_PORT_1 0 /* CHNL = 1 */ -#define OP0_IA_SETUP 1 -#define OP0_CONFIGURE 2 -#define OP0_MC_SETUP 3 -#define OP0_TRANSMIT 4 -#define OP0_TDR 5 -#define OP0_DUMP 6 -#define OP0_DIAGNOSE 7 -#define OP0_TRANSMIT_NO_CRC 9 -#define OP0_RETRANSMIT 12 -#define OP0_ABORT 13 -/* Reception operations */ -#define OP0_RCV_ENABLE 8 -#define OP0_RCV_DISABLE 10 -#define OP0_STOP_RCV 11 -/* Status pointer control operations */ -#define OP0_FIX_PTR 15 /* CHNL = 1 */ -#define OP0_RLS_PTR 15 /* CHNL = 0 */ -#define OP0_RESET 14 - -#define CR0_CHNL (1 << 4) /* 0=Channel 0, 1=Channel 1 */ -#define CR0_STATUS_0 0x00 -#define CR0_STATUS_1 0x20 -#define CR0_STATUS_2 0x40 -#define CR0_STATUS_3 0x60 -#define CR0_INT_ACK (1 << 7) /* 0=No ack, 1=acknowledge */ - -/* Port 0 Status Register definitions */ - -#define SR0_NO_RESULT 0 /* dummy */ -#define SR0_EVENT_MASK 0x0f -#define SR0_IA_SETUP_DONE 1 -#define SR0_CONFIGURE_DONE 2 -#define SR0_MC_SETUP_DONE 3 -#define SR0_TRANSMIT_DONE 4 -#define SR0_TDR_DONE 5 -#define SR0_DUMP_DONE 6 -#define SR0_DIAGNOSE_PASSED 7 -#define SR0_TRANSMIT_NO_CRC_DONE 9 -#define SR0_RETRANSMIT_DONE 12 -#define SR0_EXECUTION_ABORTED 13 -#define SR0_END_OF_FRAME 8 -#define SR0_RECEPTION_ABORTED 10 -#define SR0_DIAGNOSE_FAILED 15 -#define SR0_STOP_REG_HIT 11 - -#define SR0_CHNL (1 << 4) -#define SR0_EXECUTION (1 << 5) -#define SR0_RECEPTION (1 << 6) -#define SR0_INTERRUPT (1 << 7) -#define SR0_BOTH_RX_TX (SR0_EXECUTION | SR0_RECEPTION) - -#define SR3_EXEC_STATE_MASK 0x03 -#define SR3_EXEC_IDLE 0 -#define SR3_TX_ABORT_IN_PROGRESS 1 -#define SR3_EXEC_ACTIVE 2 -#define SR3_ABORT_IN_PROGRESS 3 -#define SR3_EXEC_CHNL (1 << 2) -#define SR3_STP_ON_NO_RSRC (1 << 3) -#define SR3_RCVING_NO_RSRC (1 << 4) -#define SR3_RCV_STATE_MASK 0x60 -#define SR3_RCV_IDLE 0x00 -#define SR3_RCV_READY 0x20 -#define SR3_RCV_ACTIVE 0x40 -#define SR3_RCV_STOP_IN_PROG 0x60 -#define SR3_RCV_CHNL (1 << 7) - -/* Port 1 Command Register definitions */ - -#define OP1_NOP 0 -#define OP1_SWIT_TO_PORT_0 1 -#define OP1_INT_DISABLE 2 -#define OP1_INT_ENABLE 3 -#define OP1_SET_TS 5 -#define OP1_RST_TS 7 -#define OP1_POWER_DOWN 8 -#define OP1_RESET_RING_MNGMT 11 -#define OP1_RESET 14 -#define OP1_SEL_RST 15 - -#define CR1_STATUS_4 0x00 -#define CR1_STATUS_5 0x20 -#define CR1_STATUS_6 0x40 -#define CR1_STOP_REG_UPDATE (1 << 7) - -/* Receive frame status bits */ - -#define RX_RCLD (1 << 0) -#define RX_IA_MATCH (1 << 1) -#define RX_NO_AD_MATCH (1 << 2) -#define RX_NO_SFD (1 << 3) -#define RX_SRT_FRM (1 << 7) -#define RX_OVRRUN (1 << 8) -#define RX_ALG_ERR (1 << 10) -#define RX_CRC_ERR (1 << 11) -#define RX_LEN_ERR (1 << 12) -#define RX_RCV_OK (1 << 13) -#define RX_TYP_LEN (1 << 15) - -/* Transmit status bits */ - -#define TX_NCOL_MASK 0x0f -#define TX_FRTL (1 << 4) -#define TX_MAX_COL (1 << 5) -#define TX_HRT_BEAT (1 << 6) -#define TX_DEFER (1 << 7) -#define TX_UND_RUN (1 << 8) -#define TX_LOST_CTS (1 << 9) -#define TX_LOST_CRS (1 << 10) -#define TX_LTCOL (1 << 11) -#define TX_OK (1 << 13) -#define TX_COLL (1 << 15) - -struct i82593_conf_block { - u_char fifo_limit : 4, - forgnesi : 1, - fifo_32 : 1, - d6mod : 1, - throttle_enb : 1; - u_char throttle : 6, - cntrxint : 1, - contin : 1; - u_char addr_len : 3, - acloc : 1, - preamb_len : 2, - loopback : 2; - u_char lin_prio : 3, - tbofstop : 1, - exp_prio : 3, - bof_met : 1; - u_char : 4, - ifrm_spc : 4; - u_char : 5, - slottim_low : 3; - u_char slottim_hi : 3, - : 1, - max_retr : 4; - u_char prmisc : 1, - bc_dis : 1, - : 1, - crs_1 : 1, - nocrc_ins : 1, - crc_1632 : 1, - : 1, - crs_cdt : 1; - u_char cs_filter : 3, - crs_src : 1, - cd_filter : 3, - : 1; - u_char : 2, - min_fr_len : 6; - u_char lng_typ : 1, - lng_fld : 1, - rxcrc_xf : 1, - artx : 1, - sarec : 1, - tx_jabber : 1, /* why is this called max_len in the manual? */ - hash_1 : 1, - lbpkpol : 1; - u_char : 6, - fdx : 1, - : 1; - u_char dummy_6 : 6, /* supposed to be ones */ - mult_ia : 1, - dis_bof : 1; - u_char dummy_1 : 1, /* supposed to be one */ - tx_ifs_retrig : 2, - mc_all : 1, - rcv_mon : 2, - frag_acpt : 1, - tstrttrs : 1; - u_char fretx : 1, - runt_eop : 1, - hw_sw_pin : 1, - big_endn : 1, - syncrqs : 1, - sttlen : 1, - tx_eop : 1, - rx_eop : 1; - u_char rbuf_size : 5, - rcvstop : 1, - : 2; -}; - -#define I82593_MAX_MULTICAST_ADDRESSES 128 /* Hardware hashed filter */ - -#endif /* _I82593_H */ diff --git a/drivers/staging/wavelan/wavelan_cs.p.h b/drivers/staging/wavelan/wavelan_cs.p.h index 81d91531c4f9..8fbfaa8a5a67 100644 --- a/drivers/staging/wavelan/wavelan_cs.p.h +++ b/drivers/staging/wavelan/wavelan_cs.p.h @@ -446,7 +446,7 @@ #include /* Wavelan declarations */ -#include "i82593.h" /* Definitions for the Intel chip */ +#include /* Definitions for the Intel chip */ #include "wavelan_cs.h" /* Others bits of the hardware */ diff --git a/include/linux/i82593.h b/include/linux/i82593.h new file mode 100644 index 000000000000..afac5c7a323d --- /dev/null +++ b/include/linux/i82593.h @@ -0,0 +1,229 @@ +/* + * Definitions for Intel 82593 CSMA/CD Core LAN Controller + * The definitions are taken from the 1992 users manual with Intel + * order number 297125-001. + * + * /usr/src/pc/RCS/i82593.h,v 1.1 1996/07/17 15:23:12 root Exp + * + * Copyright 1994, Anders Klemets + * + * HISTORY + * i82593.h,v + * Revision 1.4 2005/11/4 09:15:00 baroniunas + * Modified copyright with permission of author as follows: + * + * "If I82539.H is the only file with my copyright statement + * that is included in the Source Forge project, then you have + * my approval to change the copyright statement to be a GPL + * license, in the way you proposed on October 10." + * + * Revision 1.1 1996/07/17 15:23:12 root + * Initial revision + * + * Revision 1.3 1995/04/05 15:13:58 adj + * Initial alpha release + * + * Revision 1.2 1994/06/16 23:57:31 klemets + * Mirrored all the fields in the configuration block. + * + * Revision 1.1 1994/06/02 20:25:34 klemets + * Initial revision + * + * + */ +#ifndef _I82593_H +#define _I82593_H + +/* Intel 82593 CSMA/CD Core LAN Controller */ + +/* Port 0 Command Register definitions */ + +/* Execution operations */ +#define OP0_NOP 0 /* CHNL = 0 */ +#define OP0_SWIT_TO_PORT_1 0 /* CHNL = 1 */ +#define OP0_IA_SETUP 1 +#define OP0_CONFIGURE 2 +#define OP0_MC_SETUP 3 +#define OP0_TRANSMIT 4 +#define OP0_TDR 5 +#define OP0_DUMP 6 +#define OP0_DIAGNOSE 7 +#define OP0_TRANSMIT_NO_CRC 9 +#define OP0_RETRANSMIT 12 +#define OP0_ABORT 13 +/* Reception operations */ +#define OP0_RCV_ENABLE 8 +#define OP0_RCV_DISABLE 10 +#define OP0_STOP_RCV 11 +/* Status pointer control operations */ +#define OP0_FIX_PTR 15 /* CHNL = 1 */ +#define OP0_RLS_PTR 15 /* CHNL = 0 */ +#define OP0_RESET 14 + +#define CR0_CHNL (1 << 4) /* 0=Channel 0, 1=Channel 1 */ +#define CR0_STATUS_0 0x00 +#define CR0_STATUS_1 0x20 +#define CR0_STATUS_2 0x40 +#define CR0_STATUS_3 0x60 +#define CR0_INT_ACK (1 << 7) /* 0=No ack, 1=acknowledge */ + +/* Port 0 Status Register definitions */ + +#define SR0_NO_RESULT 0 /* dummy */ +#define SR0_EVENT_MASK 0x0f +#define SR0_IA_SETUP_DONE 1 +#define SR0_CONFIGURE_DONE 2 +#define SR0_MC_SETUP_DONE 3 +#define SR0_TRANSMIT_DONE 4 +#define SR0_TDR_DONE 5 +#define SR0_DUMP_DONE 6 +#define SR0_DIAGNOSE_PASSED 7 +#define SR0_TRANSMIT_NO_CRC_DONE 9 +#define SR0_RETRANSMIT_DONE 12 +#define SR0_EXECUTION_ABORTED 13 +#define SR0_END_OF_FRAME 8 +#define SR0_RECEPTION_ABORTED 10 +#define SR0_DIAGNOSE_FAILED 15 +#define SR0_STOP_REG_HIT 11 + +#define SR0_CHNL (1 << 4) +#define SR0_EXECUTION (1 << 5) +#define SR0_RECEPTION (1 << 6) +#define SR0_INTERRUPT (1 << 7) +#define SR0_BOTH_RX_TX (SR0_EXECUTION | SR0_RECEPTION) + +#define SR3_EXEC_STATE_MASK 0x03 +#define SR3_EXEC_IDLE 0 +#define SR3_TX_ABORT_IN_PROGRESS 1 +#define SR3_EXEC_ACTIVE 2 +#define SR3_ABORT_IN_PROGRESS 3 +#define SR3_EXEC_CHNL (1 << 2) +#define SR3_STP_ON_NO_RSRC (1 << 3) +#define SR3_RCVING_NO_RSRC (1 << 4) +#define SR3_RCV_STATE_MASK 0x60 +#define SR3_RCV_IDLE 0x00 +#define SR3_RCV_READY 0x20 +#define SR3_RCV_ACTIVE 0x40 +#define SR3_RCV_STOP_IN_PROG 0x60 +#define SR3_RCV_CHNL (1 << 7) + +/* Port 1 Command Register definitions */ + +#define OP1_NOP 0 +#define OP1_SWIT_TO_PORT_0 1 +#define OP1_INT_DISABLE 2 +#define OP1_INT_ENABLE 3 +#define OP1_SET_TS 5 +#define OP1_RST_TS 7 +#define OP1_POWER_DOWN 8 +#define OP1_RESET_RING_MNGMT 11 +#define OP1_RESET 14 +#define OP1_SEL_RST 15 + +#define CR1_STATUS_4 0x00 +#define CR1_STATUS_5 0x20 +#define CR1_STATUS_6 0x40 +#define CR1_STOP_REG_UPDATE (1 << 7) + +/* Receive frame status bits */ + +#define RX_RCLD (1 << 0) +#define RX_IA_MATCH (1 << 1) +#define RX_NO_AD_MATCH (1 << 2) +#define RX_NO_SFD (1 << 3) +#define RX_SRT_FRM (1 << 7) +#define RX_OVRRUN (1 << 8) +#define RX_ALG_ERR (1 << 10) +#define RX_CRC_ERR (1 << 11) +#define RX_LEN_ERR (1 << 12) +#define RX_RCV_OK (1 << 13) +#define RX_TYP_LEN (1 << 15) + +/* Transmit status bits */ + +#define TX_NCOL_MASK 0x0f +#define TX_FRTL (1 << 4) +#define TX_MAX_COL (1 << 5) +#define TX_HRT_BEAT (1 << 6) +#define TX_DEFER (1 << 7) +#define TX_UND_RUN (1 << 8) +#define TX_LOST_CTS (1 << 9) +#define TX_LOST_CRS (1 << 10) +#define TX_LTCOL (1 << 11) +#define TX_OK (1 << 13) +#define TX_COLL (1 << 15) + +struct i82593_conf_block { + u_char fifo_limit : 4, + forgnesi : 1, + fifo_32 : 1, + d6mod : 1, + throttle_enb : 1; + u_char throttle : 6, + cntrxint : 1, + contin : 1; + u_char addr_len : 3, + acloc : 1, + preamb_len : 2, + loopback : 2; + u_char lin_prio : 3, + tbofstop : 1, + exp_prio : 3, + bof_met : 1; + u_char : 4, + ifrm_spc : 4; + u_char : 5, + slottim_low : 3; + u_char slottim_hi : 3, + : 1, + max_retr : 4; + u_char prmisc : 1, + bc_dis : 1, + : 1, + crs_1 : 1, + nocrc_ins : 1, + crc_1632 : 1, + : 1, + crs_cdt : 1; + u_char cs_filter : 3, + crs_src : 1, + cd_filter : 3, + : 1; + u_char : 2, + min_fr_len : 6; + u_char lng_typ : 1, + lng_fld : 1, + rxcrc_xf : 1, + artx : 1, + sarec : 1, + tx_jabber : 1, /* why is this called max_len in the manual? */ + hash_1 : 1, + lbpkpol : 1; + u_char : 6, + fdx : 1, + : 1; + u_char dummy_6 : 6, /* supposed to be ones */ + mult_ia : 1, + dis_bof : 1; + u_char dummy_1 : 1, /* supposed to be one */ + tx_ifs_retrig : 2, + mc_all : 1, + rcv_mon : 2, + frag_acpt : 1, + tstrttrs : 1; + u_char fretx : 1, + runt_eop : 1, + hw_sw_pin : 1, + big_endn : 1, + syncrqs : 1, + sttlen : 1, + tx_eop : 1, + rx_eop : 1; + u_char rbuf_size : 5, + rcvstop : 1, + : 2; +}; + +#define I82593_MAX_MULTICAST_ADDRESSES 128 /* Hardware hashed filter */ + +#endif /* _I82593_H */ -- cgit v1.2.3 From d83345adf96bc13a5e360f4649a2e68ef968dec0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 16 Nov 2009 03:36:51 +0000 Subject: net: add dev_txq_stats_fold() helper Some drivers ndo_get_stats() method need to perform txqueue stats folding. Move folding from dev_get_stats() to a new dev_txq_stats_fold() function Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + net/core/dev.c | 48 ++++++++++++++++++++++++++++------------------- 2 files changed, 30 insertions(+), 19 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 7043f85e643d..c8fa4627de00 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1941,6 +1941,7 @@ extern void netdev_features_change(struct net_device *dev); extern void dev_load(struct net *net, const char *name); extern void dev_mcast_init(void); extern const struct net_device_stats *dev_get_stats(struct net_device *dev); +extern void dev_txq_stats_fold(const struct net_device *dev, struct net_device_stats *stats); extern int netdev_max_backlog; extern int weight_p; diff --git a/net/core/dev.c b/net/core/dev.c index d867522290b9..c3e0578d29d1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5168,6 +5168,32 @@ void netdev_run_todo(void) } } +/** + * dev_txq_stats_fold - fold tx_queues stats + * @dev: device to get statistics from + * @stats: struct net_device_stats to hold results + */ +void dev_txq_stats_fold(const struct net_device *dev, + struct net_device_stats *stats) +{ + unsigned long tx_bytes = 0, tx_packets = 0, tx_dropped = 0; + unsigned int i; + struct netdev_queue *txq; + + for (i = 0; i < dev->num_tx_queues; i++) { + txq = netdev_get_tx_queue(dev, i); + tx_bytes += txq->tx_bytes; + tx_packets += txq->tx_packets; + tx_dropped += txq->tx_dropped; + } + if (tx_bytes || tx_packets || tx_dropped) { + stats->tx_bytes = tx_bytes; + stats->tx_packets = tx_packets; + stats->tx_dropped = tx_dropped; + } +} +EXPORT_SYMBOL(dev_txq_stats_fold); + /** * dev_get_stats - get network device statistics * @dev: device to get statistics from @@ -5182,25 +5208,9 @@ const struct net_device_stats *dev_get_stats(struct net_device *dev) if (ops->ndo_get_stats) return ops->ndo_get_stats(dev); - else { - unsigned long tx_bytes = 0, tx_packets = 0, tx_dropped = 0; - struct net_device_stats *stats = &dev->stats; - unsigned int i; - struct netdev_queue *txq; - - for (i = 0; i < dev->num_tx_queues; i++) { - txq = netdev_get_tx_queue(dev, i); - tx_bytes += txq->tx_bytes; - tx_packets += txq->tx_packets; - tx_dropped += txq->tx_dropped; - } - if (tx_bytes || tx_packets || tx_dropped) { - stats->tx_bytes = tx_bytes; - stats->tx_packets = tx_packets; - stats->tx_dropped = tx_dropped; - } - return stats; - } + + dev_txq_stats_fold(dev, &dev->stats); + return &dev->stats; } EXPORT_SYMBOL(dev_get_stats); -- cgit v1.2.3 From 395264d509aec45149745843d9a737140a1ece16 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Mon, 16 Nov 2009 13:49:35 +0000 Subject: net: introduce NETDEV_UNREGISTER_PERNET This new event is called once for each unique net namespace in batched unregister operations (with the argument set to a random device from that namespace) and once per device in non-batched unregister operations. It allows us to factorize some device unregister work such as clearing the routing cache. Signed-off-by: Octavian Purdila Signed-off-by: David S. Miller --- include/linux/notifier.h | 1 + net/core/dev.c | 29 +++++++++++++++++++++++++++-- 2 files changed, 28 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 29714b8441b1..b0c3671d463c 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -202,6 +202,7 @@ static inline int notifier_to_errno(int ret) #define NETDEV_BONDING_OLDTYPE 0x000E #define NETDEV_BONDING_NEWTYPE 0x000F #define NETDEV_POST_INIT 0x0010 +#define NETDEV_UNREGISTER_PERNET 0x0011 #define SYS_DOWN 0x0001 /* Notify of system down */ #define SYS_RESTART SYS_DOWN diff --git a/net/core/dev.c b/net/core/dev.c index c3e0578d29d1..e25fe5d9343b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1344,6 +1344,7 @@ rollback: nb->notifier_call(nb, NETDEV_DOWN, dev); } nb->notifier_call(nb, NETDEV_UNREGISTER, dev); + nb->notifier_call(nb, NETDEV_UNREGISTER_PERNET, dev); } } @@ -4721,7 +4722,8 @@ static void net_set_todo(struct net_device *dev) static void rollback_registered_many(struct list_head *head) { - struct net_device *dev; + struct net_device *dev, *aux, *fdev; + LIST_HEAD(pernet_list); BUG_ON(dev_boot_phase); ASSERT_RTNL(); @@ -4779,8 +4781,24 @@ static void rollback_registered_many(struct list_head *head) synchronize_net(); - list_for_each_entry(dev, head, unreg_list) + list_for_each_entry_safe(dev, aux, head, unreg_list) { + int new_net = 1; + list_for_each_entry(fdev, &pernet_list, unreg_list) { + if (dev_net(dev) == dev_net(fdev)) { + new_net = 0; + dev_put(dev); + break; + } + } + if (new_net) + list_move(&dev->unreg_list, &pernet_list); + } + + list_for_each_entry_safe(dev, aux, &pernet_list, unreg_list) { + call_netdevice_notifiers(NETDEV_UNREGISTER_PERNET, dev); + list_move(&dev->unreg_list, head); dev_put(dev); + } } static void rollback_registered(struct net_device *dev) @@ -5074,6 +5092,8 @@ static void netdev_wait_allrefs(struct net_device *dev) /* Rebroadcast unregister notification */ call_netdevice_notifiers(NETDEV_UNREGISTER, dev); + /* don't resend NETDEV_UNREGISTER_PERNET, _PERNET users + * should have already handle it the first time */ if (test_bit(__LINK_STATE_LINKWATCH_PENDING, &dev->state)) { @@ -5385,6 +5405,10 @@ EXPORT_SYMBOL(unregister_netdevice_queue); * unregister_netdevice_many - unregister many devices * @head: list of devices * + * WARNING: Calling this modifies the given list + * (in rollback_registered_many). It may change the order of the elements + * in the list. However, you can assume it does not add or delete elements + * to/from the list. */ void unregister_netdevice_many(struct list_head *head) { @@ -5504,6 +5528,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char this device. They should clean all the things. */ call_netdevice_notifiers(NETDEV_UNREGISTER, dev); + call_netdevice_notifiers(NETDEV_UNREGISTER_PERNET, dev); /* * Flush the unicast and multicast chains -- cgit v1.2.3 From e014debecd3ee3832e6476b3a9c948edfcfd1250 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 17 Nov 2009 05:59:21 +0000 Subject: linkwatch: linkwatch_forget_dev() to speedup device dismantle MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Herbert Xu a écrit : > On Tue, Nov 17, 2009 at 04:26:04AM -0800, David Miller wrote: >> Really, the link watch stuff is just due for a redesign. I don't >> think a simple hack is going to cut it this time, sorry Eric :-) > > I have no objections against any redesigns, but since the only > caller of linkwatch_forget_dev runs in process context with the > RTNL, it could also legally emit those events. Thanks guys, here an updated version then, before linkwatch surgery ? In this version, I force the event to be sent synchronously. [PATCH net-next-2.6] linkwatch: linkwatch_forget_dev() to speedup device dismantle time ip link del eth3.103 ; time ip link del eth3.104 ; time ip link del eth3.105 real 0m0.266s user 0m0.000s sys 0m0.001s real 0m0.770s user 0m0.000s sys 0m0.000s real 0m1.022s user 0m0.000s sys 0m0.000s One problem of current schem in vlan dismantle phase is the holding of device done by following chain : vlan_dev_stop() -> netif_carrier_off(dev) -> linkwatch_fire_event(dev) -> dev_hold() ... And __linkwatch_run_queue() runs up to one second later... A generic fix to this problem is to add a linkwatch_forget_dev() method to unlink the device from the list of watched devices. dev->link_watch_next becomes dev->link_watch_list (and use a bit more memory), to be able to unlink device in O(1). After patch : time ip link del eth3.103 ; time ip link del eth3.104 ; time ip link del eth3.105 real 0m0.024s user 0m0.000s sys 0m0.000s real 0m0.032s user 0m0.000s sys 0m0.001s real 0m0.033s user 0m0.000s sys 0m0.000s Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 +- net/core/dev.c | 3 ++ net/core/link_watch.c | 94 ++++++++++++++++++++++++++++------------------- 3 files changed, 62 insertions(+), 38 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c8fa4627de00..97873e31661c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -896,7 +896,7 @@ struct net_device { /* device index hash chain */ struct hlist_node index_hlist; - struct net_device *link_watch_next; + struct list_head link_watch_list; /* register/unregister state machine */ enum { NETREG_UNINITIALIZED=0, @@ -1600,6 +1600,7 @@ static inline void dev_hold(struct net_device *dev) */ extern void linkwatch_fire_event(struct net_device *dev); +extern void linkwatch_forget_dev(struct net_device *dev); /** * netif_carrier_ok - test if carrier present diff --git a/net/core/dev.c b/net/core/dev.c index e25fe5d9343b..c128af708ebf 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5085,6 +5085,8 @@ static void netdev_wait_allrefs(struct net_device *dev) { unsigned long rebroadcast_time, warning_time; + linkwatch_forget_dev(dev); + rebroadcast_time = warning_time = jiffies; while (atomic_read(&dev->refcnt) != 0) { if (time_after(jiffies, rebroadcast_time + 1 * HZ)) { @@ -5311,6 +5313,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name, INIT_LIST_HEAD(&dev->napi_list); INIT_LIST_HEAD(&dev->unreg_list); + INIT_LIST_HEAD(&dev->link_watch_list); dev->priv_flags = IFF_XMIT_DST_RELEASE; setup(dev); strcpy(dev->name, name); diff --git a/net/core/link_watch.c b/net/core/link_watch.c index bf8f7af699d7..5910b555a54a 100644 --- a/net/core/link_watch.c +++ b/net/core/link_watch.c @@ -35,7 +35,7 @@ static unsigned long linkwatch_nextevent; static void linkwatch_event(struct work_struct *dummy); static DECLARE_DELAYED_WORK(linkwatch_work, linkwatch_event); -static struct net_device *lweventlist; +static LIST_HEAD(lweventlist); static DEFINE_SPINLOCK(lweventlist_lock); static unsigned char default_operstate(const struct net_device *dev) @@ -89,8 +89,10 @@ static void linkwatch_add_event(struct net_device *dev) unsigned long flags; spin_lock_irqsave(&lweventlist_lock, flags); - dev->link_watch_next = lweventlist; - lweventlist = dev; + if (list_empty(&dev->link_watch_list)) { + list_add_tail(&dev->link_watch_list, &lweventlist); + dev_hold(dev); + } spin_unlock_irqrestore(&lweventlist_lock, flags); } @@ -133,9 +135,35 @@ static void linkwatch_schedule_work(int urgent) } +static void linkwatch_do_dev(struct net_device *dev) +{ + /* + * Make sure the above read is complete since it can be + * rewritten as soon as we clear the bit below. + */ + smp_mb__before_clear_bit(); + + /* We are about to handle this device, + * so new events can be accepted + */ + clear_bit(__LINK_STATE_LINKWATCH_PENDING, &dev->state); + + rfc2863_policy(dev); + if (dev->flags & IFF_UP) { + if (netif_carrier_ok(dev)) + dev_activate(dev); + else + dev_deactivate(dev); + + netdev_state_change(dev); + } + dev_put(dev); +} + static void __linkwatch_run_queue(int urgent_only) { - struct net_device *next; + struct net_device *dev; + LIST_HEAD(wrk); /* * Limit the number of linkwatch events to one @@ -153,46 +181,40 @@ static void __linkwatch_run_queue(int urgent_only) clear_bit(LW_URGENT, &linkwatch_flags); spin_lock_irq(&lweventlist_lock); - next = lweventlist; - lweventlist = NULL; - spin_unlock_irq(&lweventlist_lock); + list_splice_init(&lweventlist, &wrk); - while (next) { - struct net_device *dev = next; + while (!list_empty(&wrk)) { - next = dev->link_watch_next; + dev = list_first_entry(&wrk, struct net_device, link_watch_list); + list_del_init(&dev->link_watch_list); if (urgent_only && !linkwatch_urgent_event(dev)) { - linkwatch_add_event(dev); + list_add_tail(&dev->link_watch_list, &lweventlist); continue; } - - /* - * Make sure the above read is complete since it can be - * rewritten as soon as we clear the bit below. - */ - smp_mb__before_clear_bit(); - - /* We are about to handle this device, - * so new events can be accepted - */ - clear_bit(__LINK_STATE_LINKWATCH_PENDING, &dev->state); - - rfc2863_policy(dev); - if (dev->flags & IFF_UP) { - if (netif_carrier_ok(dev)) - dev_activate(dev); - else - dev_deactivate(dev); - - netdev_state_change(dev); - } - - dev_put(dev); + spin_unlock_irq(&lweventlist_lock); + linkwatch_do_dev(dev); + spin_lock_irq(&lweventlist_lock); } - if (lweventlist) + if (!list_empty(&lweventlist)) linkwatch_schedule_work(0); + spin_unlock_irq(&lweventlist_lock); +} + +void linkwatch_forget_dev(struct net_device *dev) +{ + unsigned long flags; + int clean = 0; + + spin_lock_irqsave(&lweventlist_lock, flags); + if (!list_empty(&dev->link_watch_list)) { + list_del_init(&dev->link_watch_list); + clean = 1; + } + spin_unlock_irqrestore(&lweventlist_lock, flags); + if (clean) + linkwatch_do_dev(dev); } @@ -216,8 +238,6 @@ void linkwatch_fire_event(struct net_device *dev) bool urgent = linkwatch_urgent_event(dev); if (!test_and_set_bit(__LINK_STATE_LINKWATCH_PENDING, &dev->state)) { - dev_hold(dev); - linkwatch_add_event(dev); } else if (!urgent) return; -- cgit v1.2.3 From c95cf3d09adc9afe7816a13a920b6df36062a3fe Mon Sep 17 00:00:00 2001 From: David-John Willis Date: Tue, 17 Nov 2009 18:50:09 +0200 Subject: wl1251: add NVS in EEPROM support wl1251 supports also that NVS is stored in a separate EEPROM, add support for that. kvalo: use platform data instead Kconfig and use kernel style Signed-off-by: David-John Willis Signed-off-by: Kalle Valo Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1251.h | 1 + drivers/net/wireless/wl12xx/wl1251_boot.c | 20 +++++++++++++------- drivers/net/wireless/wl12xx/wl1251_reg.h | 6 ++++++ drivers/net/wireless/wl12xx/wl1251_spi.c | 2 ++ include/linux/spi/wl12xx.h | 1 + 5 files changed, 23 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/wireless/wl12xx/wl1251.h b/drivers/net/wireless/wl12xx/wl1251.h index a839466664f0..054533f7a124 100644 --- a/drivers/net/wireless/wl12xx/wl1251.h +++ b/drivers/net/wireless/wl12xx/wl1251.h @@ -269,6 +269,7 @@ struct wl1251 { void (*set_power)(bool enable); int irq; + bool use_eeprom; enum wl1251_state state; struct mutex mutex; diff --git a/drivers/net/wireless/wl12xx/wl1251_boot.c b/drivers/net/wireless/wl12xx/wl1251_boot.c index 5094f24ad034..2e733e7bdfd4 100644 --- a/drivers/net/wireless/wl12xx/wl1251_boot.c +++ b/drivers/net/wireless/wl12xx/wl1251_boot.c @@ -494,13 +494,19 @@ int wl1251_boot(struct wl1251 *wl) goto out; /* 2. start processing NVS file */ - ret = wl1251_boot_upload_nvs(wl); - if (ret < 0) - goto out; - - /* write firmware's last address (ie. it's length) to - * ACX_EEPROMLESS_IND_REG */ - wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len); + if (wl->use_eeprom) { + wl1251_reg_write32(wl, ACX_REG_EE_START, START_EEPROM_MGR); + msleep(4000); + wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, USE_EEPROM); + } else { + ret = wl1251_boot_upload_nvs(wl); + if (ret < 0) + goto out; + + /* write firmware's last address (ie. it's length) to + * ACX_EEPROMLESS_IND_REG */ + wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len); + } /* 6. read the EEPROM parameters */ tmp = wl1251_reg_read32(wl, SCR_PAD2); diff --git a/drivers/net/wireless/wl12xx/wl1251_reg.h b/drivers/net/wireless/wl12xx/wl1251_reg.h index 06e1bd94a739..0ca3b4326056 100644 --- a/drivers/net/wireless/wl12xx/wl1251_reg.h +++ b/drivers/net/wireless/wl12xx/wl1251_reg.h @@ -370,6 +370,7 @@ enum wl12xx_acx_int_reg { EEPROM location specified in the EE_ADDR register. The Wlan hardware hardware clears this bit automatically. *===============================================*/ +#define EE_CTL (REGISTERS_BASE + 0x2000) #define ACX_EE_CTL_REG EE_CTL #define EE_WRITE 0x00000001ul #define EE_READ 0x00000002ul @@ -380,6 +381,7 @@ enum wl12xx_acx_int_reg { This register specifies the address within the EEPROM from/to which to read/write data. ===============================================*/ +#define EE_ADDR (REGISTERS_BASE + 0x2008) #define ACX_EE_ADDR_REG EE_ADDR /*=============================================== @@ -389,8 +391,12 @@ enum wl12xx_acx_int_reg { data from the EEPROM or the write data to be written to the EEPROM. ===============================================*/ +#define EE_DATA (REGISTERS_BASE + 0x2004) #define ACX_EE_DATA_REG EE_DATA +#define EEPROM_ACCESS_TO 10000 /* timeout counter */ +#define START_EEPROM_MGR 0x00000001 + /*=============================================== EEPROM Base Address - 32bit RW ------------------------------------------ diff --git a/drivers/net/wireless/wl12xx/wl1251_spi.c b/drivers/net/wireless/wl12xx/wl1251_spi.c index 2cf8a2169d43..9cc8c323830f 100644 --- a/drivers/net/wireless/wl12xx/wl1251_spi.c +++ b/drivers/net/wireless/wl12xx/wl1251_spi.c @@ -270,6 +270,8 @@ static int __devinit wl1251_spi_probe(struct spi_device *spi) return -ENODEV; } + wl->use_eeprom = pdata->use_eeprom; + ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl); if (ret < 0) { wl1251_error("request_irq() failed: %d", ret); diff --git a/include/linux/spi/wl12xx.h b/include/linux/spi/wl12xx.h index 11430cab2aad..aed64ed3dc8a 100644 --- a/include/linux/spi/wl12xx.h +++ b/include/linux/spi/wl12xx.h @@ -26,6 +26,7 @@ struct wl12xx_platform_data { void (*set_power)(bool enable); + bool use_eeprom; }; #endif -- cgit v1.2.3 From 0878c3504f92f1bf063d0890a9960d4b9e6c4618 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Wed, 18 Nov 2009 16:48:00 +0100 Subject: rfkill: Add missing description for RFKILL_TYPE_GPS Signed-off-by: Marcel Holtmann Signed-off-by: Janakiram Sistla Signed-off-by: John W. Linville --- include/linux/rfkill.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h index 3392c59d2706..a75e9e566ce5 100644 --- a/include/linux/rfkill.h +++ b/include/linux/rfkill.h @@ -35,6 +35,7 @@ * @RFKILL_TYPE_UWB: switch is on a ultra wideband device. * @RFKILL_TYPE_WIMAX: switch is on a WiMAX device. * @RFKILL_TYPE_WWAN: switch is on a wireless WAN device. + * @RFKILL_TYPE_GPS: switch is on a GPS device. * @NUM_RFKILL_TYPES: number of defined rfkill types */ enum rfkill_type { -- cgit v1.2.3 From 875405a7793e9c35fab33819e7e5df7a98b6064c Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Wed, 18 Nov 2009 16:48:01 +0100 Subject: rfkill: Add constant for RFKILL_TYPE_FM radio devices Signed-off-by: Marcel Holtmann Signed-off-by: Janakiram Sistla Signed-off-by: John W. Linville --- include/linux/rfkill.h | 2 ++ net/rfkill/core.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h index a75e9e566ce5..97059d08a626 100644 --- a/include/linux/rfkill.h +++ b/include/linux/rfkill.h @@ -36,6 +36,7 @@ * @RFKILL_TYPE_WIMAX: switch is on a WiMAX device. * @RFKILL_TYPE_WWAN: switch is on a wireless WAN device. * @RFKILL_TYPE_GPS: switch is on a GPS device. + * @RFKILL_TYPE_FM: switch is on a FM radio device. * @NUM_RFKILL_TYPES: number of defined rfkill types */ enum rfkill_type { @@ -46,6 +47,7 @@ enum rfkill_type { RFKILL_TYPE_WIMAX, RFKILL_TYPE_WWAN, RFKILL_TYPE_GPS, + RFKILL_TYPE_FM, NUM_RFKILL_TYPES, }; diff --git a/net/rfkill/core.c b/net/rfkill/core.c index ba2efb960c60..09f4e161799b 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -592,11 +592,13 @@ static const char *rfkill_get_type_str(enum rfkill_type type) return "wwan"; case RFKILL_TYPE_GPS: return "gps"; + case RFKILL_TYPE_FM: + return "fm"; default: BUG(); } - BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_GPS + 1); + BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_FM + 1); } static ssize_t rfkill_type_show(struct device *dev, -- cgit v1.2.3 From 136cfa28615ccce0f9374811480e0b81c4191ea5 Mon Sep 17 00:00:00 2001 From: Rui Paulo Date: Wed, 18 Nov 2009 18:40:00 +0000 Subject: mac80211: use a structure to hold the mesh config information element Signed-off-by: Rui Paulo Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 16 +++++++++++++++- net/mac80211/ieee80211_i.h | 3 +-- net/mac80211/mesh.c | 23 ++++++++--------------- net/mac80211/util.c | 4 ++-- net/wireless/scan.c | 9 +++++---- 5 files changed, 31 insertions(+), 24 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 49b1abd2fe97..afa8e0ac27a7 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -115,7 +115,6 @@ #define IEEE80211_MAX_SSID_LEN 32 #define IEEE80211_MAX_MESH_ID_LEN 32 -#define IEEE80211_MESH_CONFIG_LEN 7 #define IEEE80211_QOS_CTL_LEN 2 #define IEEE80211_QOS_CTL_TID_MASK 0x000F @@ -554,6 +553,21 @@ struct ieee80211_tim_ie { u8 virtual_map[1]; } __attribute__ ((packed)); +/** + * struct ieee80211_meshconf_ie + * + * This structure refers to "Mesh Configuration information element" + */ +struct ieee80211_meshconf_ie { + u8 meshconf_psel; + u8 meshconf_pmetric; + u8 meshconf_congest; + u8 meshconf_synch; + u8 meshconf_auth; + u8 meshconf_form; + u8 meshconf_cap; +} __attribute__ ((packed)); + /** * struct ieee80211_rann_ie * diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 74e79935de0a..87d27f450a05 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -798,7 +798,7 @@ struct ieee802_11_elems { u8 *wmm_param; struct ieee80211_ht_cap *ht_cap_elem; struct ieee80211_ht_info *ht_info_elem; - u8 *mesh_config; + struct ieee80211_meshconf_ie *mesh_config; u8 *mesh_id; u8 *peer_link; u8 *preq; @@ -826,7 +826,6 @@ struct ieee802_11_elems { u8 ext_supp_rates_len; u8 wmm_info_len; u8 wmm_param_len; - u8 mesh_config_len; u8 mesh_id_len; u8 peer_link_len; u8 preq_len; diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 3a0683ba357b..51adb1115215 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -16,12 +16,6 @@ #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ) #define IEEE80211_MESH_RANN_INTERVAL (1 * HZ) -#define MESHCONF_PP_OFFSET 0 /* Path Selection Protocol */ -#define MESHCONF_PM_OFFSET 1 /* Path Selection Metric */ -#define MESHCONF_CC_OFFSET 2 /* Congestion Control Mode */ -#define MESHCONF_SP_OFFSET 3 /* Synchronization Protocol */ -#define MESHCONF_AUTH_OFFSET 4 /* Authentication Protocol */ -#define MESHCONF_CAPAB_OFFSET 6 #define MESHCONF_CAPAB_ACCEPT_PLINKS 0x01 #define MESHCONF_CAPAB_FORWARDING 0x08 @@ -87,12 +81,11 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat */ if (ifmsh->mesh_id_len == ie->mesh_id_len && memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && - (ifmsh->mesh_pp_id == *(ie->mesh_config + MESHCONF_PP_OFFSET))&& - (ifmsh->mesh_pm_id == *(ie->mesh_config + MESHCONF_PM_OFFSET))&& - (ifmsh->mesh_cc_id == *(ie->mesh_config + MESHCONF_CC_OFFSET))&& - (ifmsh->mesh_sp_id == *(ie->mesh_config + MESHCONF_SP_OFFSET))&& - (ifmsh->mesh_auth_id == *(ie->mesh_config + - MESHCONF_AUTH_OFFSET))) + (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && + (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && + (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && + (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && + (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)) return true; return false; @@ -105,7 +98,7 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat */ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie) { - return (*(ie->mesh_config + MESHCONF_CAPAB_OFFSET) & + return (ie->mesh_config->meshconf_cap & MESHCONF_CAPAB_ACCEPT_PLINKS) != 0; } @@ -262,9 +255,9 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) if (sdata->u.mesh.mesh_id_len) memcpy(pos, sdata->u.mesh.mesh_id, sdata->u.mesh.mesh_id_len); - pos = skb_put(skb, 2 + IEEE80211_MESH_CONFIG_LEN); + pos = skb_put(skb, 2 + sizeof(struct ieee80211_meshconf_ie)); *pos++ = WLAN_EID_MESH_CONFIG; - *pos++ = IEEE80211_MESH_CONFIG_LEN; + *pos++ = sizeof(struct ieee80211_meshconf_ie); /* Active path selection protocol ID */ *pos++ = sdata->u.mesh.mesh_pp_id; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 5ae1bf389849..2fb0432ac830 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -666,8 +666,8 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, elems->mesh_id_len = elen; break; case WLAN_EID_MESH_CONFIG: - elems->mesh_config = pos; - elems->mesh_config_len = elen; + if (elen >= sizeof(struct ieee80211_meshconf_ie)) + elems->mesh_config = (void *)pos; break; case WLAN_EID_PEER_LINK: elems->peer_link = pos; diff --git a/net/wireless/scan.c b/net/wireless/scan.c index e2d344ff6745..d03447d68cdd 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -217,7 +217,7 @@ static bool is_mesh(struct cfg80211_bss *a, a->len_information_elements); if (!ie) return false; - if (ie[1] != IEEE80211_MESH_CONFIG_LEN) + if (ie[1] != sizeof(struct ieee80211_meshconf_ie)) return false; /* @@ -225,7 +225,8 @@ static bool is_mesh(struct cfg80211_bss *a, * comparing since that may differ between stations taking * part in the same mesh. */ - return memcmp(ie + 2, meshcfg, IEEE80211_MESH_CONFIG_LEN - 2) == 0; + return memcmp(ie + 2, meshcfg, + sizeof(struct ieee80211_meshconf_ie) - 2) == 0; } static int cmp_bss(struct cfg80211_bss *a, @@ -399,7 +400,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, res->pub.information_elements, res->pub.len_information_elements); if (!meshid || !meshcfg || - meshcfg[1] != IEEE80211_MESH_CONFIG_LEN) { + meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) { /* bogus mesh */ kref_put(&res->ref, bss_release); return NULL; @@ -865,7 +866,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info, break; case WLAN_EID_MESH_CONFIG: ismesh = true; - if (ie[1] != IEEE80211_MESH_CONFIG_LEN) + if (ie[1] != sizeof(struct ieee80211_meshconf_ie)) break; buf = kmalloc(50, GFP_ATOMIC); if (!buf) -- cgit v1.2.3 From 386e50cc7d82b3799ea6f53267f04f123ae05afe Mon Sep 17 00:00:00 2001 From: Andrew Hendry Date: Wed, 18 Nov 2009 23:30:41 -0800 Subject: X25: Enable setting of cause and diagnostic fields Adds SIOCX25SCAUSEDIAG, allowing X.25 programs to set the cause and diagnostic fields. Normally used to indicate status upon closing connections. Signed-off-by: Andrew Hendry Signed-off-by: David S. Miller --- include/linux/x25.h | 1 + net/x25/af_x25.c | 12 ++++++++++++ net/x25/x25_subr.c | 6 ++++++ 3 files changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/x25.h b/include/linux/x25.h index d035e4e87d07..6450a7f12074 100644 --- a/include/linux/x25.h +++ b/include/linux/x25.h @@ -25,6 +25,7 @@ #define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9) #define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10) #define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11) +#define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12) /* * Values for {get,set}sockopt. diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index 39ce03e07d18..ac7dba46fa33 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -1471,6 +1471,17 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } + case SIOCX25SCAUSEDIAG: { + struct x25_causediag causediag; + rc = -EFAULT; + if (copy_from_user(&causediag, argp, sizeof(causediag))) + break; + x25->causediag = causediag; + rc = 0; + break; + + } + case SIOCX25SCUDMATCHLEN: { struct x25_subaddr sub_addr; rc = -EINVAL; @@ -1639,6 +1650,7 @@ static int compat_x25_ioctl(struct socket *sock, unsigned int cmd, case SIOCX25GCALLUSERDATA: case SIOCX25SCALLUSERDATA: case SIOCX25GCAUSEDIAG: + case SIOCX25SCAUSEDIAG: case SIOCX25SCUDMATCHLEN: case SIOCX25CALLACCPTAPPRV: case SIOCX25SENDCALLACCPT: diff --git a/net/x25/x25_subr.c b/net/x25/x25_subr.c index 511a5986af3e..352b32d216fc 100644 --- a/net/x25/x25_subr.c +++ b/net/x25/x25_subr.c @@ -225,6 +225,12 @@ void x25_write_internal(struct sock *sk, int frametype) break; case X25_CLEAR_REQUEST: + dptr = skb_put(skb, 3); + *dptr++ = frametype; + *dptr++ = x25->causediag.cause; + *dptr++ = x25->causediag.diagnostic; + break; + case X25_RESET_REQUEST: dptr = skb_put(skb, 3); *dptr++ = frametype; -- cgit v1.2.3 From ad4bb6f8883a13bb0f65b194dae36c62a02ac779 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 19 Nov 2009 00:56:30 +0100 Subject: cfg80211: disallow bridging managed/adhoc interfaces A number of people have tried to add a wireless interface (in managed mode) to a bridge and then complained that it doesn't work. It cannot work, however, because in 802.11 networks all packets need to be acknowledged and as such need to be sent to the right address. Promiscuous doesn't help here. The wireless address format used for these links has only space for three addresses, the * transmitter, which must be equal to the sender (origin) * receiver (on the wireless medium), which is the AP in the case of managed mode * the recipient (destination), which is on the APs local network segment In an IBSS, it is similar, but the receiver and recipient must match and the third address is used as the BSSID. To avoid such mistakes in the future, disallow adding a wireless interface to a bridge. Felix has recently added a four-address mode to the AP and client side that can be used (after negotiating that it is possible, which must happen out-of-band by setting up both sides) for bridging, so allow that case. Signed-off-by: Johannes Berg Acked-by: Stephen Hemminger Signed-off-by: John W. Linville --- include/linux/if.h | 1 + net/bridge/br_if.c | 4 ++++ net/wireless/core.c | 4 ++++ net/wireless/nl80211.c | 12 ++++++++---- net/wireless/util.c | 31 +++++++++++++++++++++++++++++++ 5 files changed, 48 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if.h b/include/linux/if.h index 3b2a46bf8f8d..3a9f410a296b 100644 --- a/include/linux/if.h +++ b/include/linux/if.h @@ -70,6 +70,7 @@ #define IFF_XMIT_DST_RELEASE 0x400 /* dev_hard_start_xmit() is allowed to * release skb->dst */ +#define IFF_DONT_BRIDGE 0x800 /* disallow bridging this ether dev */ #define IF_GET_IFACE 0x0001 /* for querying only */ #define IF_GET_PROTO 0x0002 diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index a6f74b2b9571..a2cbe61f6e65 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -390,6 +390,10 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) if (dev->br_port != NULL) return -EBUSY; + /* No bridging devices that dislike that (e.g. wireless) */ + if (dev->priv_flags & IFF_DONT_BRIDGE) + return -EOPNOTSUPP; + p = new_nbp(br, dev); if (IS_ERR(p)) return PTR_ERR(p); diff --git a/net/wireless/core.c b/net/wireless/core.c index e2cc6e7522dd..fc5e9b508607 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -697,6 +697,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, #endif if (!dev->ethtool_ops) dev->ethtool_ops = &cfg80211_ethtool_ops; + + if ((wdev->iftype == NL80211_IFTYPE_STATION || + wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr) + dev->priv_flags |= IFF_DONT_BRIDGE; break; case NETDEV_GOING_DOWN: switch (wdev->iftype) { diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b7b0f67b0c61..149539ade15e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -969,10 +969,14 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) } static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, - u8 use_4addr, enum nl80211_iftype iftype) + struct net_device *netdev, u8 use_4addr, + enum nl80211_iftype iftype) { - if (!use_4addr) + if (!use_4addr) { + if (netdev && netdev->br_port) + return -EBUSY; return 0; + } switch (iftype) { case NL80211_IFTYPE_AP_VLAN: @@ -1033,7 +1037,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); change = true; - err = nl80211_valid_4addr(rdev, params.use_4addr, ntype); + err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); if (err) goto unlock; } else { @@ -1111,7 +1115,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); - err = nl80211_valid_4addr(rdev, params.use_4addr, type); + err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); if (err) goto unlock; } diff --git a/net/wireless/util.c b/net/wireless/util.c index 17a7a4cfc617..59361fdcb5d0 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -658,6 +658,11 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, !(rdev->wiphy.interface_modes & (1 << ntype))) return -EOPNOTSUPP; + /* if it's part of a bridge, reject changing type to station/ibss */ + if (dev->br_port && (ntype == NL80211_IFTYPE_ADHOC || + ntype == NL80211_IFTYPE_STATION)) + return -EBUSY; + if (ntype != otype) { dev->ieee80211_ptr->use_4addr = false; @@ -687,5 +692,31 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, if (!err && params && params->use_4addr != -1) dev->ieee80211_ptr->use_4addr = params->use_4addr; + if (!err) { + dev->priv_flags &= ~IFF_DONT_BRIDGE; + switch (ntype) { + case NL80211_IFTYPE_STATION: + if (dev->ieee80211_ptr->use_4addr) + break; + /* fall through */ + case NL80211_IFTYPE_ADHOC: + dev->priv_flags |= IFF_DONT_BRIDGE; + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_WDS: + case NL80211_IFTYPE_MESH_POINT: + /* bridging OK */ + break; + case NL80211_IFTYPE_MONITOR: + /* monitor can't bridge anyway */ + break; + case NL80211_IFTYPE_UNSPECIFIED: + case __NL80211_IFTYPE_AFTER_LAST: + /* not happening */ + break; + } + } + return err; } -- cgit v1.2.3 From 8964be4a9a5ca8cab1219bb046db2f6d1936227c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 20 Nov 2009 15:35:04 -0800 Subject: net: rename skb->iif to skb->skb_iif To help grep games, rename iif to skb_iif Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/ieee802154/fakehard.c | 2 +- drivers/net/ifb.c | 6 +++--- include/linux/skbuff.h | 4 ++-- include/net/pkt_cls.h | 4 ++-- net/core/dev.c | 6 +++--- net/core/skbuff.c | 2 +- net/netlabel/netlabel_unlabeled.c | 2 +- net/sched/act_mirred.c | 2 +- net/sched/cls_flow.c | 2 +- security/selinux/hooks.c | 6 +++--- security/smack/smack_lsm.c | 4 ++-- 11 files changed, 20 insertions(+), 20 deletions(-) (limited to 'include/linux') diff --git a/drivers/ieee802154/fakehard.c b/drivers/ieee802154/fakehard.c index f877f13e3ab3..617549f30ef9 100644 --- a/drivers/ieee802154/fakehard.c +++ b/drivers/ieee802154/fakehard.c @@ -282,7 +282,7 @@ static int ieee802154_fake_close(struct net_device *dev) static netdev_tx_t ieee802154_fake_xmit(struct sk_buff *skb, struct net_device *dev) { - skb->iif = dev->ifindex; + skb->skb_iif = dev->ifindex; skb->dev = dev; dev->stats.tx_packets++; dev->stats.tx_bytes += skb->len; diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c index 69c25668dd63..f4081c0a2d9c 100644 --- a/drivers/net/ifb.c +++ b/drivers/net/ifb.c @@ -99,7 +99,7 @@ static void ri_tasklet(unsigned long dev) stats->tx_bytes +=skb->len; rcu_read_lock(); - skb->dev = dev_get_by_index_rcu(&init_net, skb->iif); + skb->dev = dev_get_by_index_rcu(&init_net, skb->skb_iif); if (!skb->dev) { rcu_read_unlock(); dev_kfree_skb(skb); @@ -107,7 +107,7 @@ static void ri_tasklet(unsigned long dev) break; } rcu_read_unlock(); - skb->iif = _dev->ifindex; + skb->skb_iif = _dev->ifindex; if (from & AT_EGRESS) { dp->st_rx_frm_egr++; @@ -172,7 +172,7 @@ static netdev_tx_t ifb_xmit(struct sk_buff *skb, struct net_device *dev) stats->rx_packets++; stats->rx_bytes+=skb->len; - if (!(from & (AT_INGRESS|AT_EGRESS)) || !skb->iif) { + if (!(from & (AT_INGRESS|AT_EGRESS)) || !skb->skb_iif) { dev_kfree_skb(skb); stats->rx_dropped++; return NETDEV_TX_OK; diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 63f47426977a..89eed8cdd318 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -299,7 +299,7 @@ typedef unsigned char *sk_buff_data_t; * @nfctinfo: Relationship of this skb to the connection * @nfct_reasm: netfilter conntrack re-assembly pointer * @nf_bridge: Saved data about a bridged frame - see br_netfilter.c - * @iif: ifindex of device we arrived on + * @skb_iif: ifindex of device we arrived on * @queue_mapping: Queue mapping for multiqueue devices * @tc_index: Traffic control index * @tc_verd: traffic control verdict @@ -366,7 +366,7 @@ struct sk_buff { struct nf_bridge_info *nf_bridge; #endif - int iif; + int skb_iif; #ifdef CONFIG_NET_SCHED __u16 tc_index; /* traffic control index */ #ifdef CONFIG_NET_CLS_ACT diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 3dd210d073ca..dd3031aed9d5 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -343,9 +343,9 @@ tcf_match_indev(struct sk_buff *skb, char *indev) struct net_device *dev; if (indev[0]) { - if (!skb->iif) + if (!skb->skb_iif) return 0; - dev = __dev_get_by_index(dev_net(skb->dev), skb->iif); + dev = __dev_get_by_index(dev_net(skb->dev), skb->skb_iif); if (!dev || strcmp(indev, dev->name)) return 0; } diff --git a/net/core/dev.c b/net/core/dev.c index 9977288583b8..09f3d6b9c0c8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2287,7 +2287,7 @@ static int ing_filter(struct sk_buff *skb) if (MAX_RED_LOOP < ttl++) { printk(KERN_WARNING "Redir loop detected Dropping packet (%d->%d)\n", - skb->iif, dev->ifindex); + skb->skb_iif, dev->ifindex); return TC_ACT_SHOT; } @@ -2395,8 +2395,8 @@ int netif_receive_skb(struct sk_buff *skb) if (netpoll_receive_skb(skb)) return NET_RX_DROP; - if (!skb->iif) - skb->iif = skb->dev->ifindex; + if (!skb->skb_iif) + skb->skb_iif = skb->dev->ifindex; null_or_orig = NULL; orig_dev = skb->dev; diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 739b8f4dd327..bfa3e7865a8c 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -549,7 +549,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old) #endif new->protocol = old->protocol; new->mark = old->mark; - new->iif = old->iif; + new->skb_iif = old->skb_iif; __nf_copy(new, old); #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \ defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE) diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 3dfe2bac8623..98ed22ee2ff4 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c @@ -1550,7 +1550,7 @@ int netlbl_unlabel_getattr(const struct sk_buff *skb, struct netlbl_unlhsh_iface *iface; rcu_read_lock(); - iface = netlbl_unlhsh_search_iface_def(skb->iif); + iface = netlbl_unlhsh_search_iface_def(skb->skb_iif); if (iface == NULL) goto unlabel_getattr_nolabel; switch (family) { diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 797479369881..d329170243cb 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -185,7 +185,7 @@ static int tcf_mirred(struct sk_buff *skb, struct tc_action *a, skb2->tc_verd = SET_TC_FROM(skb2->tc_verd, at); skb2->dev = dev; - skb2->iif = skb->dev->ifindex; + skb2->skb_iif = skb->dev->ifindex; dev_queue_xmit(skb2); err = 0; diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c index 9402a7fd3785..e054c62857e1 100644 --- a/net/sched/cls_flow.c +++ b/net/sched/cls_flow.c @@ -171,7 +171,7 @@ static u32 flow_get_proto_dst(const struct sk_buff *skb) static u32 flow_get_iif(const struct sk_buff *skb) { - return skb->iif; + return skb->skb_iif; } static u32 flow_get_priority(const struct sk_buff *skb) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index bb230d5d7085..83a4aada0b4c 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -4085,7 +4085,7 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb, char *addrp; COMMON_AUDIT_DATA_INIT(&ad, NET); - ad.u.net.netif = skb->iif; + ad.u.net.netif = skb->skb_iif; ad.u.net.family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); if (err) @@ -4147,7 +4147,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) return 0; COMMON_AUDIT_DATA_INIT(&ad, NET); - ad.u.net.netif = skb->iif; + ad.u.net.netif = skb->skb_iif; ad.u.net.family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); if (err) @@ -4159,7 +4159,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) err = selinux_skb_peerlbl_sid(skb, family, &peer_sid); if (err) return err; - err = selinux_inet_sys_rcv_skb(skb->iif, addrp, family, + err = selinux_inet_sys_rcv_skb(skb->skb_iif, addrp, family, peer_sid, &ad); if (err) { selinux_netlbl_err(skb, err, 0); diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index c33b6bb9b6dd..529c9ca65878 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -2602,7 +2602,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) #ifdef CONFIG_AUDIT smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); ad.a.u.net.family = sk->sk_family; - ad.a.u.net.netif = skb->iif; + ad.a.u.net.netif = skb->skb_iif; ipv4_skb_to_auditdata(skb, &ad.a, NULL); #endif /* @@ -2757,7 +2757,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, #ifdef CONFIG_AUDIT smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); ad.a.u.net.family = family; - ad.a.u.net.netif = skb->iif; + ad.a.u.net.netif = skb->skb_iif; ipv4_skb_to_auditdata(skb, &ad.a, NULL); #endif /* -- cgit v1.2.3 From c4832c7bbc3f7a4813347e871d7238651bf437d3 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Mon, 23 Nov 2009 10:34:39 +0100 Subject: netfilter: nf_ct_tcp: improve out-of-sync situation in TCP tracking Without this patch, if we receive a SYN packet from the client while the firewall is out-of-sync, we let it go through. Then, if we see the SYN/ACK reply coming from the server, we destroy the conntrack entry and drop the packet to trigger a new retransmission. Then, the retransmision from the client is used to start a new clean session. This patch improves the current handling. Basically, if we see an unexpected SYN packet, we annotate the TCP options. Then, if we see the reply SYN/ACK, this means that the firewall was indeed out-of-sync. Therefore, we set a clean new session from the existing entry based on the annotated values. This patch adds two new 8-bits fields that fit in a 16-bits gap of the ip_ct_tcp structure. This patch is particularly useful for conntrackd since the asynchronous nature of the state-synchronization allows to have backup nodes that are not perfect copies of the master. This helps to improve the recovery under some worst-case scenarios. I have tested this by creating lots of conntrack entries in wrong state: for ((i=1024;i<65535;i++)); do conntrack -I -p tcp -s 192.168.2.101 -d 192.168.2.2 --sport $i --dport 80 -t 800 --state ESTABLISHED -u ASSURED,SEEN_REPLY; done Then, I make some TCP connections: $ echo GET / | nc 192.168.2.2 80 The events show the result: [UPDATE] tcp 6 60 SYN_RECV src=192.168.2.101 dst=192.168.2.2 sport=33220 dport=80 src=192.168.2.2 dst=192.168.2.101 sport=80 dport=33220 [ASSURED] [UPDATE] tcp 6 432000 ESTABLISHED src=192.168.2.101 dst=192.168.2.2 sport=33220 dport=80 src=192.168.2.2 dst=192.168.2.101 sport=80 dport=33220 [ASSURED] [UPDATE] tcp 6 120 FIN_WAIT src=192.168.2.101 dst=192.168.2.2 sport=33220 dport=80 src=192.168.2.2 dst=192.168.2.101 sport=80 dport=33220 [ASSURED] [UPDATE] tcp 6 30 LAST_ACK src=192.168.2.101 dst=192.168.2.2 sport=33220 dport=80 src=192.168.2.2 dst=192.168.2.101 sport=80 dport=33220 [ASSURED] [UPDATE] tcp 6 120 TIME_WAIT src=192.168.2.101 dst=192.168.2.2 sport=33220 dport=80 src=192.168.2.2 dst=192.168.2.101 sport=80 dport=33220 [ASSURED] and tcpdump shows no retransmissions: 20:47:57.271951 IP 192.168.2.101.33221 > 192.168.2.2.www: S 435402517:435402517(0) win 5840 20:47:57.273538 IP 192.168.2.2.www > 192.168.2.101.33221: S 3509927945:3509927945(0) ack 435402518 win 5792 20:47:57.273608 IP 192.168.2.101.33221 > 192.168.2.2.www: . ack 3509927946 win 92 20:47:57.273693 IP 192.168.2.101.33221 > 192.168.2.2.www: P 435402518:435402524(6) ack 3509927946 win 92 20:47:57.275492 IP 192.168.2.2.www > 192.168.2.101.33221: . ack 435402524 win 362 20:47:57.276492 IP 192.168.2.2.www > 192.168.2.101.33221: P 3509927946:3509928082(136) ack 435402524 win 362 20:47:57.276515 IP 192.168.2.101.33221 > 192.168.2.2.www: . ack 3509928082 win 108 20:47:57.276521 IP 192.168.2.2.www > 192.168.2.101.33221: F 3509928082:3509928082(0) ack 435402524 win 362 20:47:57.277369 IP 192.168.2.101.33221 > 192.168.2.2.www: F 435402524:435402524(0) ack 3509928083 win 108 20:47:57.279491 IP 192.168.2.2.www > 192.168.2.101.33221: . ack 435402525 win 362 I also added a rule to log invalid packets, with no occurrences :-) . Signed-off-by: Pablo Neira Ayuso Acked-by: Jozsef Kadlecsik Signed-off-by: Patrick McHardy --- include/linux/netfilter/nf_conntrack_tcp.h | 3 ++ net/netfilter/nf_conntrack_proto_tcp.c | 51 ++++++++++++++++++++++++------ 2 files changed, 44 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h index 4352feed2377..ece22e94dcbf 100644 --- a/include/linux/netfilter/nf_conntrack_tcp.h +++ b/include/linux/netfilter/nf_conntrack_tcp.h @@ -67,6 +67,9 @@ struct ip_ct_tcp u_int32_t last_ack; /* Last sequence number seen in opposite dir */ u_int32_t last_end; /* Last seq + len */ u_int16_t last_win; /* Last window advertisement seen in dir */ + /* For SYN packets while we may be out-of-sync */ + u_int8_t last_wscale; /* Last window scaling factor seen */ + u_int8_t last_flags; /* Last flags set */ }; #endif /* __KERNEL__ */ diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 97a82ba75376..9cc6b5cb06af 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -908,23 +908,54 @@ static int tcp_packet(struct nf_conn *ct, /* b) This SYN/ACK acknowledges a SYN that we earlier * ignored as invalid. This means that the client and * the server are both in sync, while the firewall is - * not. We kill this session and block the SYN/ACK so - * that the client cannot but retransmit its SYN and - * thus initiate a clean new session. + * not. We get in sync from the previously annotated + * values. */ - spin_unlock_bh(&ct->lock); - if (LOG_INVALID(net, IPPROTO_TCP)) - nf_log_packet(pf, 0, skb, NULL, NULL, NULL, - "nf_ct_tcp: killing out of sync session "); - nf_ct_kill(ct); - return NF_DROP; + old_state = TCP_CONNTRACK_SYN_SENT; + new_state = TCP_CONNTRACK_SYN_RECV; + ct->proto.tcp.seen[ct->proto.tcp.last_dir].td_end = + ct->proto.tcp.last_end; + ct->proto.tcp.seen[ct->proto.tcp.last_dir].td_maxend = + ct->proto.tcp.last_end; + ct->proto.tcp.seen[ct->proto.tcp.last_dir].td_maxwin = + ct->proto.tcp.last_win == 0 ? + 1 : ct->proto.tcp.last_win; + ct->proto.tcp.seen[ct->proto.tcp.last_dir].td_scale = + ct->proto.tcp.last_wscale; + ct->proto.tcp.seen[ct->proto.tcp.last_dir].flags = + ct->proto.tcp.last_flags; + memset(&ct->proto.tcp.seen[dir], 0, + sizeof(struct ip_ct_tcp_state)); + break; } ct->proto.tcp.last_index = index; ct->proto.tcp.last_dir = dir; ct->proto.tcp.last_seq = ntohl(th->seq); ct->proto.tcp.last_end = segment_seq_plus_len(ntohl(th->seq), skb->len, dataoff, th); - + ct->proto.tcp.last_win = ntohs(th->window); + + /* a) This is a SYN in ORIGINAL. The client and the server + * may be in sync but we are not. In that case, we annotate + * the TCP options and let the packet go through. If it is a + * valid SYN packet, the server will reply with a SYN/ACK, and + * then we'll get in sync. Otherwise, the server ignores it. */ + if (index == TCP_SYN_SET && dir == IP_CT_DIR_ORIGINAL) { + struct ip_ct_tcp_state seen = {}; + + ct->proto.tcp.last_flags = + ct->proto.tcp.last_wscale = 0; + tcp_options(skb, dataoff, th, &seen); + if (seen.flags & IP_CT_TCP_FLAG_WINDOW_SCALE) { + ct->proto.tcp.last_flags |= + IP_CT_TCP_FLAG_WINDOW_SCALE; + ct->proto.tcp.last_wscale = seen.td_scale; + } + if (seen.flags & IP_CT_TCP_FLAG_SACK_PERM) { + ct->proto.tcp.last_flags |= + IP_CT_TCP_FLAG_SACK_PERM; + } + } spin_unlock_bh(&ct->lock); if (LOG_INVALID(net, IPPROTO_TCP)) nf_log_packet(pf, 0, skb, NULL, NULL, NULL, -- cgit v1.2.3 From 475cba4ec8ee6b427cc3567692e6f48dd483c069 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 23 Nov 2009 15:53:52 -0500 Subject: sctp: implement definition for SACK-IMMEDIATELY extension This patch implement the definition for SACK-IMMEDIATELY extension. Section 3. The I-bit in the DATA Chunk Header The following Figure 1 shows the extended DATA chunk. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type = 0 | Res |I|U|B|E| Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | TSN | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Stream Identifier | Stream Sequence Number | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Payload Protocol Identifier | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \ \ / User Data / \ \ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Figure 1 The only difference between the DATA chunk in Figure 1 and the DATA chunk defined in [RFC4960] is the addition of the I-bit in the flags field of the chunk header. Signed-off-by: Wei Yongjun Signed-off-by: Vlad Yasevich --- include/linux/sctp.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sctp.h b/include/linux/sctp.h index b464b9d3d242..c20d3ce673c0 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -242,6 +242,7 @@ enum { SCTP_DATA_FIRST_FRAG = 0x02, SCTP_DATA_NOT_FRAG = 0x03, SCTP_DATA_UNORDERED = 0x04, + SCTP_DATA_SACK_IMM = 0x08, }; enum { SCTP_DATA_FRAG_MASK = 0x03, }; -- cgit v1.2.3 From 4e242d1616781f9f1f0b01abf878700b259cd8b5 Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Wed, 25 Nov 2009 00:29:51 +0000 Subject: xfrm: Define new XFRM netlink auth attribute with specified truncation bits The new XFRMA_ALG_AUTH_TRUNC attribute taking a xfrm_algo_auth as argument allows the installation of authentication algorithms with a truncation length specified in userspace, i.e. SHA256 with 128 bit instead of 96 bit truncation. Signed-off-by: Martin Willi Signed-off-by: David S. Miller --- include/linux/xfrm.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h index 3246f0e66bcc..29e04beb1fc9 100644 --- a/include/linux/xfrm.h +++ b/include/linux/xfrm.h @@ -90,6 +90,13 @@ struct xfrm_algo { char alg_key[0]; }; +struct xfrm_algo_auth { + char alg_name[64]; + unsigned int alg_key_len; /* in bits */ + unsigned int alg_trunc_len; /* in bits */ + char alg_key[0]; +}; + struct xfrm_algo_aead { char alg_name[64]; unsigned int alg_key_len; /* in bits */ @@ -274,6 +281,7 @@ enum xfrm_attr_type_t { XFRMA_MIGRATE, XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */ XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */ + XFRMA_ALG_AUTH_TRUNC, /* struct xfrm_algo_auth */ __XFRMA_MAX #define XFRMA_MAX (__XFRMA_MAX - 1) -- cgit v1.2.3 From 445409602c09219767c06497c0dc2285eac244ed Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 26 Nov 2009 06:07:08 +0000 Subject: veth: move loopback logic to common location The veth driver contains code to forward an skb from the start_xmit function of one network device into the receive path of another device. Moving that code into a common location lets us reuse the code for direct forwarding of data between macvlan ports, and possibly in other drivers. Signed-off-by: Arnd Bergmann Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- drivers/net/veth.c | 17 +++-------------- include/linux/netdevice.h | 2 ++ net/core/dev.c | 40 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 45 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 2d657f2314cb..6c4b5a2d7877 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -155,8 +155,6 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) struct veth_net_stats *stats, *rcv_stats; int length, cpu; - skb_orphan(skb); - priv = netdev_priv(dev); rcv = priv->peer; rcv_priv = netdev_priv(rcv); @@ -168,20 +166,12 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) if (!(rcv->flags & IFF_UP)) goto tx_drop; - if (skb->len > (rcv->mtu + MTU_PAD)) - goto rx_drop; - - skb->tstamp.tv64 = 0; - skb->pkt_type = PACKET_HOST; - skb->protocol = eth_type_trans(skb, rcv); if (dev->features & NETIF_F_NO_CSUM) skb->ip_summed = rcv_priv->ip_summed; - skb->mark = 0; - secpath_reset(skb); - nf_reset(skb); - - length = skb->len; + length = skb->len + ETH_HLEN; + if (dev_forward_skb(rcv, skb) != NET_RX_SUCCESS) + goto rx_drop; stats->tx_bytes += length; stats->tx_packets++; @@ -189,7 +179,6 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) rcv_stats->rx_bytes += length; rcv_stats->rx_packets++; - netif_rx(skb); return NETDEV_TX_OK; tx_drop: diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 97873e31661c..9428793775a0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1562,6 +1562,8 @@ extern int dev_set_mac_address(struct net_device *, extern int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq); +extern int dev_forward_skb(struct net_device *dev, + struct sk_buff *skb); extern int netdev_budget; diff --git a/net/core/dev.c b/net/core/dev.c index e65af6041415..7775e8b48deb 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -105,6 +105,7 @@ #include #include #include +#include #include #include #include @@ -1419,6 +1420,45 @@ static inline void net_timestamp(struct sk_buff *skb) skb->tstamp.tv64 = 0; } +/** + * dev_forward_skb - loopback an skb to another netif + * + * @dev: destination network device + * @skb: buffer to forward + * + * return values: + * NET_RX_SUCCESS (no congestion) + * NET_RX_DROP (packet was dropped) + * + * dev_forward_skb can be used for injecting an skb from the + * start_xmit function of one device into the receive queue + * of another device. + * + * The receiving device may be in another namespace, so + * we have to clear all information in the skb that could + * impact namespace isolation. + */ +int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) +{ + skb_orphan(skb); + + if (!(dev->flags & IFF_UP)) + return NET_RX_DROP; + + if (skb->len > (dev->mtu + dev->hard_header_len)) + return NET_RX_DROP; + + skb_dst_drop(skb); + skb->tstamp.tv64 = 0; + skb->pkt_type = PACKET_HOST; + skb->protocol = eth_type_trans(skb, dev); + skb->mark = 0; + secpath_reset(skb); + nf_reset(skb); + return netif_rx(skb); +} +EXPORT_SYMBOL_GPL(dev_forward_skb); + /* * Support routine. Sends outgoing frames to any network * taps currently in use. -- cgit v1.2.3 From 27c0b1a850cdea6298f573d835782f3337be913c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 26 Nov 2009 06:07:11 +0000 Subject: macvlan: export macvlan mode through netlink In order to support all three modes of macvlan at runtime, extend the existing netlink protocol to allow choosing the mode per macvlan slave interface. This depends on a matching patch to iproute2 in order to become accessible in user land. Signed-off-by: Arnd Bergmann Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 56 +++++++++++++++++++++++++++++++++++++++++++------ include/linux/if_link.h | 15 +++++++++++++ 2 files changed, 65 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index d6bd84353f44..322112c7358a 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -33,12 +33,6 @@ #define MACVLAN_HASH_SIZE (1 << BITS_PER_BYTE) -enum macvlan_mode { - MACVLAN_MODE_PRIVATE = 1, - MACVLAN_MODE_VEPA = 2, - MACVLAN_MODE_BRIDGE = 4, -}; - struct macvlan_port { struct net_device *dev; struct hlist_head vlan_hash[MACVLAN_HASH_SIZE]; @@ -614,6 +608,17 @@ static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) return -EADDRNOTAVAIL; } + + if (data && data[IFLA_MACVLAN_MODE]) { + switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) { + case MACVLAN_MODE_PRIVATE: + case MACVLAN_MODE_VEPA: + case MACVLAN_MODE_BRIDGE: + break; + default: + return -EINVAL; + } + } return 0; } @@ -678,6 +683,10 @@ static int macvlan_newlink(struct net *src_net, struct net_device *dev, vlan->dev = dev; vlan->port = port; + vlan->mode = MACVLAN_MODE_VEPA; + if (data && data[IFLA_MACVLAN_MODE]) + vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); + err = register_netdevice(dev); if (err < 0) return err; @@ -699,6 +708,36 @@ static void macvlan_dellink(struct net_device *dev, struct list_head *head) macvlan_port_destroy(port->dev); } +static int macvlan_changelink(struct net_device *dev, + struct nlattr *tb[], struct nlattr *data[]) +{ + struct macvlan_dev *vlan = netdev_priv(dev); + if (data && data[IFLA_MACVLAN_MODE]) + vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]); + return 0; +} + +static size_t macvlan_get_size(const struct net_device *dev) +{ + return nla_total_size(4); +} + +static int macvlan_fill_info(struct sk_buff *skb, + const struct net_device *dev) +{ + struct macvlan_dev *vlan = netdev_priv(dev); + + NLA_PUT_U32(skb, IFLA_MACVLAN_MODE, vlan->mode); + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + +static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = { + [IFLA_MACVLAN_MODE] = { .type = NLA_U32 }, +}; + static struct rtnl_link_ops macvlan_link_ops __read_mostly = { .kind = "macvlan", .priv_size = sizeof(struct macvlan_dev), @@ -707,6 +746,11 @@ static struct rtnl_link_ops macvlan_link_ops __read_mostly = { .validate = macvlan_validate, .newlink = macvlan_newlink, .dellink = macvlan_dellink, + .maxtype = IFLA_MACVLAN_MAX, + .policy = macvlan_policy, + .changelink = macvlan_changelink, + .get_size = macvlan_get_size, + .fill_info = macvlan_fill_info, }; static int macvlan_device_event(struct notifier_block *unused, diff --git a/include/linux/if_link.h b/include/linux/if_link.h index 1d3b2425f661..6674791622ca 100644 --- a/include/linux/if_link.h +++ b/include/linux/if_link.h @@ -181,4 +181,19 @@ struct ifla_vlan_qos_mapping { __u32 to; }; +/* MACVLAN section */ +enum { + IFLA_MACVLAN_UNSPEC, + IFLA_MACVLAN_MODE, + __IFLA_MACVLAN_MAX, +}; + +#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1) + +enum macvlan_mode { + MACVLAN_MODE_PRIVATE = 1, /* don't talk to other macvlans */ + MACVLAN_MODE_VEPA = 2, /* talk to other ports through ext bridge */ + MACVLAN_MODE_BRIDGE = 4, /* talk to bridge ports directly */ +}; + #endif /* _LINUX_IF_LINK_H */ -- cgit v1.2.3 From 5e7565930524410f097f5b04f8aba663089a6ffc Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 25 Nov 2009 07:54:54 +0000 Subject: vlan: support "loose binding" to the underlying network device Currently the UP/DOWN state of VLANs is synchronized to the state of the underlying device, meaning all VLANs are set down once the underlying device is set down. This causes all routes to the VLAN devices to vanish. Add a flag to specify a "loose binding" mode, in which only the operstate is transfered, but the VLAN device state is independant. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 1 + net/8021q/vlan.c | 9 +++++++-- net/8021q/vlan_dev.c | 6 ++++-- net/8021q/vlan_netlink.c | 3 ++- 4 files changed, 14 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 153f6b9e722c..3d870fda8c4f 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -339,6 +339,7 @@ enum vlan_ioctl_cmds { enum vlan_flags { VLAN_FLAG_REORDER_HDR = 0x1, VLAN_FLAG_GVRP = 0x2, + VLAN_FLAG_LOOSE_BINDING = 0x4, }; enum vlan_name_types { diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 1483243edf14..225aa2fac0e3 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -431,6 +431,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, struct vlan_group *grp; int i, flgs; struct net_device *vlandev; + struct vlan_dev_info *vlan; LIST_HEAD(list); if (is_vlan_dev(dev)) @@ -507,7 +508,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, if (!(flgs & IFF_UP)) continue; - dev_change_flags(vlandev, flgs & ~IFF_UP); + vlan = vlan_dev_info(vlandev); + if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) + dev_change_flags(vlandev, flgs & ~IFF_UP); vlan_transfer_operstate(dev, vlandev); } break; @@ -523,7 +526,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, if (flgs & IFF_UP) continue; - dev_change_flags(vlandev, flgs | IFF_UP); + vlan = vlan_dev_info(vlandev); + if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) + dev_change_flags(vlandev, flgs | IFF_UP); vlan_transfer_operstate(dev, vlandev); } break; diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index de0dc6bacbe8..b7889782047e 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -431,7 +431,8 @@ int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask) struct vlan_dev_info *vlan = vlan_dev_info(dev); u32 old_flags = vlan->flags; - if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP)) + if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | + VLAN_FLAG_LOOSE_BINDING)) return -EINVAL; vlan->flags = (old_flags & ~mask) | (flags & mask); @@ -456,7 +457,8 @@ static int vlan_dev_open(struct net_device *dev) struct net_device *real_dev = vlan->real_dev; int err; - if (!(real_dev->flags & IFF_UP)) + if (!(real_dev->flags & IFF_UP) && + !(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) return -ENETDOWN; if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) { diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c index 3c9cf6a8e7fb..ddc105734af7 100644 --- a/net/8021q/vlan_netlink.c +++ b/net/8021q/vlan_netlink.c @@ -60,7 +60,8 @@ static int vlan_validate(struct nlattr *tb[], struct nlattr *data[]) if (data[IFLA_VLAN_FLAGS]) { flags = nla_data(data[IFLA_VLAN_FLAGS]); if ((flags->flags & flags->mask) & - ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP)) + ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | + VLAN_FLAG_LOOSE_BINDING)) return -EINVAL; } -- cgit v1.2.3 From 67fbb16be69d138a3b6645ec5395b487cb915c58 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 24 Nov 2009 23:59:15 +0100 Subject: nl80211: PMKSA caching support This is an interface to set, delete and flush PMKIDs through nl80211. Main users would be fullmac devices which firmwares are capable of generating the RSN IEs for the re-association requests, e.g. iwmc3200wifi. Signed-off-by: Samuel Ortiz Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 2 + include/linux/nl80211.h | 11 +++++ include/net/cfg80211.h | 28 +++++++++++ net/wireless/nl80211.c | 120 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 161 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index afa8e0ac27a7..d9724a28c0c2 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1266,6 +1266,8 @@ enum ieee80211_sa_query_action { #define WLAN_MAX_KEY_LEN 32 +#define WLAN_PMKID_LEN 16 + /** * ieee80211_get_qos_ctl - get pointer to qos control bytes * @hdr: the frame diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 45db17f81aa3..da8ea2e19273 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -349,6 +349,10 @@ enum nl80211_commands { NL80211_CMD_GET_SURVEY, NL80211_CMD_NEW_SURVEY_RESULTS, + NL80211_CMD_SET_PMKSA, + NL80211_CMD_DEL_PMKSA, + NL80211_CMD_FLUSH_PMKSA, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ @@ -598,6 +602,10 @@ enum nl80211_commands { * the survey response for %NL80211_CMD_GET_SURVEY, nested attribute * containing info as possible, see &enum survey_info. * + * @NL80211_ATTR_PMKID: PMK material for PMKSA caching. + * @NL80211_ATTR_MAX_NUM_PMKIDS: maximum number of PMKIDs a firmware can + * cache, a wiphy attribute. + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -732,6 +740,9 @@ enum nl80211_attrs { NL80211_ATTR_SURVEY_INFO, + NL80211_ATTR_PMKID, + NL80211_ATTR_MAX_NUM_PMKIDS, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index a6492e9bca97..0884b9a0f778 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -871,6 +871,19 @@ struct cfg80211_bitrate_mask { u32 fixed; /* fixed bitrate, 0 == not fixed */ u32 maxrate; /* in kbps, 0 == no limit */ }; +/** + * struct cfg80211_pmksa - PMK Security Association + * + * This structure is passed to the set/del_pmksa() method for PMKSA + * caching. + * + * @bssid: The AP's BSSID. + * @pmkid: The PMK material itself. + */ +struct cfg80211_pmksa { + u8 *bssid; + u8 *pmkid; +}; /** * struct cfg80211_ops - backend description for wireless configuration @@ -976,6 +989,13 @@ struct cfg80211_bitrate_mask { * @dump_survey: get site survey information. * * @testmode_cmd: run a test mode command + * + * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac + * devices running firmwares capable of generating the (re) association + * RSN IE. It allows for faster roaming between WPA2 BSSIDs. + * @del_pmksa: Delete a cached PMKID. + * @flush_pmksa: Flush all cached PMKIDs. + * */ struct cfg80211_ops { int (*suspend)(struct wiphy *wiphy); @@ -1097,6 +1117,12 @@ struct cfg80211_ops { int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, int idx, struct survey_info *info); + int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa); + int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa); + int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); + /* some temporary stuff to finish wext */ int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, bool enabled, int timeout); @@ -1195,6 +1221,8 @@ struct wiphy { char fw_version[ETHTOOL_BUSINFO_LEN]; u32 hw_version; + u8 max_num_pmkids; + /* If multiple wiphys are registered and you're handed e.g. * a regular netdev with assigned ieee80211_ptr, you won't * know whether it points to a wiphy your driver has registered diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 149539ade15e..a6028433e3a0 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -139,6 +139,8 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, [NL80211_ATTR_PID] = { .type = NLA_U32 }, [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, + [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, + .len = WLAN_PMKID_LEN }, }; /* policy for the attributes */ @@ -450,6 +452,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, sizeof(u32) * dev->wiphy.n_cipher_suites, dev->wiphy.cipher_suites); + NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, + dev->wiphy.max_num_pmkids); + nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); if (!nl_modes) goto nla_put_failure; @@ -561,6 +566,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, CMD(deauth, DEAUTHENTICATE); CMD(disassoc, DISASSOCIATE); CMD(join_ibss, JOIN_IBSS); + CMD(set_pmksa, SET_PMKSA); + CMD(del_pmksa, DEL_PMKSA); + CMD(flush_pmksa, FLUSH_PMKSA); if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { i++; NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); @@ -4221,6 +4229,99 @@ static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev; + int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_pmksa *pmksa) = NULL; + int err; + struct net_device *dev; + struct cfg80211_pmksa pmksa; + + memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + if (!info->attrs[NL80211_ATTR_PMKID]) + return -EINVAL; + + rtnl_lock(); + + err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); + if (err) + goto out_rtnl; + + pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); + pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { + err = -EOPNOTSUPP; + goto out; + } + + switch (info->genlhdr->cmd) { + case NL80211_CMD_SET_PMKSA: + rdev_ops = rdev->ops->set_pmksa; + break; + case NL80211_CMD_DEL_PMKSA: + rdev_ops = rdev->ops->del_pmksa; + break; + default: + WARN_ON(1); + break; + } + + if (!rdev_ops) { + err = -EOPNOTSUPP; + goto out; + } + + err = rdev_ops(&rdev->wiphy, dev, &pmksa); + + out: + cfg80211_unlock_rdev(rdev); + dev_put(dev); + out_rtnl: + rtnl_unlock(); + + return err; +} + +static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev; + int err; + struct net_device *dev; + + rtnl_lock(); + + err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); + if (err) + goto out_rtnl; + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { + err = -EOPNOTSUPP; + goto out; + } + + if (!rdev->ops->flush_pmksa) { + err = -EOPNOTSUPP; + goto out; + } + + err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); + + out: + cfg80211_unlock_rdev(rdev); + dev_put(dev); + out_rtnl: + rtnl_unlock(); + + return err; + +} + static struct genl_ops nl80211_ops[] = { { .cmd = NL80211_CMD_GET_WIPHY, @@ -4465,6 +4566,25 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .dumpit = nl80211_dump_survey, }, + { + .cmd = NL80211_CMD_SET_PMKSA, + .doit = nl80211_setdel_pmksa, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_DEL_PMKSA, + .doit = nl80211_setdel_pmksa, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_FLUSH_PMKSA, + .doit = nl80211_flush_pmksa, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + }; static struct genl_multicast_group nl80211_mlme_mcgrp = { .name = "mlme", -- cgit v1.2.3 From 5789d290cda6854b03986031df02b965572279df Mon Sep 17 00:00:00 2001 From: PJ Waskiewicz Date: Wed, 25 Nov 2009 00:11:30 +0000 Subject: ethtool: Add Direct Attach support to connector port reporting This patch allows a base driver to specify Direct Attach as the type of port through the ethtool interface. Signed-off-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- include/linux/ethtool.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index edd03b79e8f8..bcaa0e0a54d3 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -631,6 +631,8 @@ struct ethtool_ops { #define PORT_MII 0x02 #define PORT_FIBRE 0x03 #define PORT_BNC 0x04 +#define PORT_DA 0x05 +#define PORT_NONE 0xef #define PORT_OTHER 0xff /* Which transceiver to use. */ -- cgit v1.2.3 From a5ee155136b4a8f4ab0e4c9c064b661da475e298 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 29 Nov 2009 15:45:58 +0000 Subject: net: NETDEV_UNREGISTER_PERNET -> NETDEV_UNREGISTER_BATCH The motivation for an additional notifier in batched netdevice notification (rt_do_flush) only needs to be called once per batch not once per namespace. For further batching improvements I need a guarantee that the netdevices are unregistered in order allowing me to unregister an all of the network devices in a network namespace at the same time with the guarantee that the loopback device is really and truly unregistered last. Additionally it appears that we moved the route cache flush after the final synchronize_net, which seems wrong and there was no explanation. So I have restored the original location of the final synchronize_net. Cc: Octavian Purdila Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller --- include/linux/notifier.h | 2 +- include/net/route.h | 1 + net/core/dev.c | 36 +++++++++--------------------------- net/ipv4/fib_frontend.c | 4 +++- net/ipv4/route.c | 6 ++++++ 5 files changed, 20 insertions(+), 29 deletions(-) (limited to 'include/linux') diff --git a/include/linux/notifier.h b/include/linux/notifier.h index b0c3671d463c..fee6c2f68075 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -202,7 +202,7 @@ static inline int notifier_to_errno(int ret) #define NETDEV_BONDING_OLDTYPE 0x000E #define NETDEV_BONDING_NEWTYPE 0x000F #define NETDEV_POST_INIT 0x0010 -#define NETDEV_UNREGISTER_PERNET 0x0011 +#define NETDEV_UNREGISTER_BATCH 0x0011 #define SYS_DOWN 0x0001 /* Notify of system down */ #define SYS_RESTART SYS_DOWN diff --git a/include/net/route.h b/include/net/route.h index cfb4c071a136..bce6dd68d27b 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -108,6 +108,7 @@ extern int ip_rt_init(void); extern void ip_rt_redirect(__be32 old_gw, __be32 dst, __be32 new_gw, __be32 src, struct net_device *dev); extern void rt_cache_flush(struct net *net, int how); +extern void rt_cache_flush_batch(void); extern int __ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp); extern int ip_route_output_key(struct net *, struct rtable **, struct flowi *flp); extern int ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk, int flags); diff --git a/net/core/dev.c b/net/core/dev.c index 5d131c2f84cc..bb37ee1e0901 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1353,7 +1353,7 @@ rollback: nb->notifier_call(nb, NETDEV_DOWN, dev); } nb->notifier_call(nb, NETDEV_UNREGISTER, dev); - nb->notifier_call(nb, NETDEV_UNREGISTER_PERNET, dev); + nb->notifier_call(nb, NETDEV_UNREGISTER_BATCH, dev); } } @@ -4771,8 +4771,7 @@ static void net_set_todo(struct net_device *dev) static void rollback_registered_many(struct list_head *head) { - struct net_device *dev, *aux, *fdev; - LIST_HEAD(pernet_list); + struct net_device *dev; BUG_ON(dev_boot_phase); ASSERT_RTNL(); @@ -4828,26 +4827,14 @@ static void rollback_registered_many(struct list_head *head) netdev_unregister_kobject(dev); } - synchronize_net(); + /* Process any work delayed until the end of the batch */ + dev = list_entry(head->next, struct net_device, unreg_list); + call_netdevice_notifiers(NETDEV_UNREGISTER_BATCH, dev); - list_for_each_entry_safe(dev, aux, head, unreg_list) { - int new_net = 1; - list_for_each_entry(fdev, &pernet_list, unreg_list) { - if (net_eq(dev_net(dev), dev_net(fdev))) { - new_net = 0; - dev_put(dev); - break; - } - } - if (new_net) - list_move(&dev->unreg_list, &pernet_list); - } + synchronize_net(); - list_for_each_entry_safe(dev, aux, &pernet_list, unreg_list) { - call_netdevice_notifiers(NETDEV_UNREGISTER_PERNET, dev); - list_move(&dev->unreg_list, head); + list_for_each_entry(dev, head, unreg_list) dev_put(dev); - } } static void rollback_registered(struct net_device *dev) @@ -5129,7 +5116,7 @@ static void netdev_wait_allrefs(struct net_device *dev) /* Rebroadcast unregister notification */ call_netdevice_notifiers(NETDEV_UNREGISTER, dev); - /* don't resend NETDEV_UNREGISTER_PERNET, _PERNET users + /* don't resend NETDEV_UNREGISTER_BATCH, _BATCH users * should have already handle it the first time */ if (test_bit(__LINK_STATE_LINKWATCH_PENDING, @@ -5442,11 +5429,6 @@ EXPORT_SYMBOL(unregister_netdevice_queue); /** * unregister_netdevice_many - unregister many devices * @head: list of devices - * - * WARNING: Calling this modifies the given list - * (in rollback_registered_many). It may change the order of the elements - * in the list. However, you can assume it does not add or delete elements - * to/from the list. */ void unregister_netdevice_many(struct list_head *head) { @@ -5555,7 +5537,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char this device. They should clean all the things. */ call_netdevice_notifiers(NETDEV_UNREGISTER, dev); - call_netdevice_notifiers(NETDEV_UNREGISTER_PERNET, dev); + call_netdevice_notifiers(NETDEV_UNREGISTER_BATCH, dev); /* * Flush the unicast and multicast chains diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 6c1e56aef1f4..3b373a8b0473 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -959,9 +959,11 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo break; case NETDEV_CHANGEMTU: case NETDEV_CHANGE: - case NETDEV_UNREGISTER_PERNET: rt_cache_flush(dev_net(dev), 0); break; + case NETDEV_UNREGISTER_BATCH: + rt_cache_flush_batch(); + break; } return NOTIFY_DONE; } diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 9889fbd96487..90cdcfc32937 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -900,6 +900,12 @@ void rt_cache_flush(struct net *net, int delay) rt_do_flush(!in_softirq()); } +/* Flush previous cache invalidated entries from the cache */ +void rt_cache_flush_batch(void) +{ + rt_do_flush(!in_softirq()); +} + /* * We change rt_genid and let gc do the cleanup */ -- cgit v1.2.3 From dcbccbd4f1f6ad0f0e169d4b2e816e42bde06f82 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 29 Nov 2009 22:25:26 +0000 Subject: net: Implement for_each_netdev_reverse. I will need this shortly to implement network namespace shutdown batching. For sanity sake network devices should be removed in the reverse order they were created in. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9428793775a0..daf13d367498 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1112,6 +1112,8 @@ extern rwlock_t dev_base_lock; /* Device list lock */ #define for_each_netdev(net, d) \ list_for_each_entry(d, &(net)->dev_base_head, dev_list) +#define for_each_netdev_reverse(net, d) \ + list_for_each_entry_reverse(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_rcu(net, d) \ list_for_each_entry_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_safe(net, d, n) \ -- cgit v1.2.3 From c81c2d95449cd218c2022ce6014c52fef1eb1f66 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 2 Dec 2009 16:49:02 +0000 Subject: skbuff: remove skb_dma_map/unmap The two functions skb_dma_map/unmap are unsafe to use as they cause problems when packets are cloned and sent to multiple devices while a HW IOMMU is enabled. Due to this it is best to remove the code so it is not used by any other network driver maintainters. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- include/linux/skbuff.h | 8 ------- net/core/Makefile | 1 - net/core/skb_dma_map.c | 65 -------------------------------------------------- 3 files changed, 74 deletions(-) delete mode 100644 net/core/skb_dma_map.c (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 89eed8cdd318..ae836fded530 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -416,14 +416,6 @@ struct sk_buff { #include -#ifdef CONFIG_HAS_DMA -#include -extern int skb_dma_map(struct device *dev, struct sk_buff *skb, - enum dma_data_direction dir); -extern void skb_dma_unmap(struct device *dev, struct sk_buff *skb, - enum dma_data_direction dir); -#endif - static inline struct dst_entry *skb_dst(const struct sk_buff *skb) { return (struct dst_entry *)skb->_skb_dst; diff --git a/net/core/Makefile b/net/core/Makefile index 796f46eece5f..08791ac3e05a 100644 --- a/net/core/Makefile +++ b/net/core/Makefile @@ -6,7 +6,6 @@ obj-y := sock.o request_sock.o skbuff.o iovec.o datagram.o stream.o scm.o \ gen_stats.o gen_estimator.o net_namespace.o obj-$(CONFIG_SYSCTL) += sysctl_net_core.o -obj-$(CONFIG_HAS_DMA) += skb_dma_map.o obj-y += dev.o ethtool.o dev_mcast.o dst.o netevent.o \ neighbour.o rtnetlink.o utils.o link_watch.o filter.o diff --git a/net/core/skb_dma_map.c b/net/core/skb_dma_map.c deleted file mode 100644 index 79687dfd6957..000000000000 --- a/net/core/skb_dma_map.c +++ /dev/null @@ -1,65 +0,0 @@ -/* skb_dma_map.c: DMA mapping helpers for socket buffers. - * - * Copyright (C) David S. Miller - */ - -#include -#include -#include -#include - -int skb_dma_map(struct device *dev, struct sk_buff *skb, - enum dma_data_direction dir) -{ - struct skb_shared_info *sp = skb_shinfo(skb); - dma_addr_t map; - int i; - - map = dma_map_single(dev, skb->data, - skb_headlen(skb), dir); - if (dma_mapping_error(dev, map)) - goto out_err; - - sp->dma_head = map; - for (i = 0; i < sp->nr_frags; i++) { - skb_frag_t *fp = &sp->frags[i]; - - map = dma_map_page(dev, fp->page, fp->page_offset, - fp->size, dir); - if (dma_mapping_error(dev, map)) - goto unwind; - sp->dma_maps[i] = map; - } - - return 0; - -unwind: - while (--i >= 0) { - skb_frag_t *fp = &sp->frags[i]; - - dma_unmap_page(dev, sp->dma_maps[i], - fp->size, dir); - } - dma_unmap_single(dev, sp->dma_head, - skb_headlen(skb), dir); -out_err: - return -ENOMEM; -} -EXPORT_SYMBOL(skb_dma_map); - -void skb_dma_unmap(struct device *dev, struct sk_buff *skb, - enum dma_data_direction dir) -{ - struct skb_shared_info *sp = skb_shinfo(skb); - int i; - - dma_unmap_single(dev, sp->dma_head, - skb_headlen(skb), dir); - for (i = 0; i < sp->nr_frags; i++) { - skb_frag_t *fp = &sp->frags[i]; - - dma_unmap_page(dev, sp->dma_maps[i], - fp->size, dir); - } -} -EXPORT_SYMBOL(skb_dma_unmap); -- cgit v1.2.3 From da5c78c82629a167794436e4306b4cf1faddea90 Mon Sep 17 00:00:00 2001 From: William Allen Simpson Date: Wed, 2 Dec 2009 18:12:09 +0000 Subject: TCPCT part 1b: generate Responder Cookie secret Define (missing) hash message size for SHA1. Define hashing size constants specific to TCP cookies. Add new function: tcp_cookie_generator(). Maintain global secret values for tcp_cookie_generator(). This is a significantly revised implementation of earlier (15-year-old) Photuris [RFC-2522] code for the KA9Q cooperative multitasking platform. Linux RCU technique appears to be well-suited to this application, though neither of the circular queue items are freed. These functions will also be used in subsequent patches that implement additional features. Signed-off-by: William.Allen.Simpson@gmail.com Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/cryptohash.h | 1 + include/net/tcp.h | 8 +++ net/ipv4/tcp.c | 140 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h index c118b2ad9807..ec78a4bbe1d5 100644 --- a/include/linux/cryptohash.h +++ b/include/linux/cryptohash.h @@ -2,6 +2,7 @@ #define __CRYPTOHASH_H #define SHA_DIGEST_WORDS 5 +#define SHA_MESSAGE_BYTES (512 /*bits*/ / 8) #define SHA_WORKSPACE_WORDS 80 void sha_init(__u32 *buf); diff --git a/include/net/tcp.h b/include/net/tcp.h index ec183fda05d0..4a99a8e39121 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1478,6 +1478,14 @@ struct tcp_request_sock_ops { #endif }; +/* Using SHA1 for now, define some constants. + */ +#define COOKIE_DIGEST_WORDS (SHA_DIGEST_WORDS) +#define COOKIE_MESSAGE_WORDS (SHA_MESSAGE_BYTES / 4) +#define COOKIE_WORKSPACE_WORDS (COOKIE_DIGEST_WORDS + COOKIE_MESSAGE_WORDS) + +extern int tcp_cookie_generator(u32 *bakery); + extern void tcp_v4_init(void); extern void tcp_init(void); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 7d4648f8b3d3..ba03ac80435a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -264,6 +264,7 @@ #include #include #include +#include #include #include @@ -2848,6 +2849,135 @@ EXPORT_SYMBOL(tcp_md5_hash_key); #endif +/** + * Each Responder maintains up to two secret values concurrently for + * efficient secret rollover. Each secret value has 4 states: + * + * Generating. (tcp_secret_generating != tcp_secret_primary) + * Generates new Responder-Cookies, but not yet used for primary + * verification. This is a short-term state, typically lasting only + * one round trip time (RTT). + * + * Primary. (tcp_secret_generating == tcp_secret_primary) + * Used both for generation and primary verification. + * + * Retiring. (tcp_secret_retiring != tcp_secret_secondary) + * Used for verification, until the first failure that can be + * verified by the newer Generating secret. At that time, this + * cookie's state is changed to Secondary, and the Generating + * cookie's state is changed to Primary. This is a short-term state, + * typically lasting only one round trip time (RTT). + * + * Secondary. (tcp_secret_retiring == tcp_secret_secondary) + * Used for secondary verification, after primary verification + * failures. This state lasts no more than twice the Maximum Segment + * Lifetime (2MSL). Then, the secret is discarded. + */ +struct tcp_cookie_secret { + /* The secret is divided into two parts. The digest part is the + * equivalent of previously hashing a secret and saving the state, + * and serves as an initialization vector (IV). The message part + * serves as the trailing secret. + */ + u32 secrets[COOKIE_WORKSPACE_WORDS]; + unsigned long expires; +}; + +#define TCP_SECRET_1MSL (HZ * TCP_PAWS_MSL) +#define TCP_SECRET_2MSL (HZ * TCP_PAWS_MSL * 2) +#define TCP_SECRET_LIFE (HZ * 600) + +static struct tcp_cookie_secret tcp_secret_one; +static struct tcp_cookie_secret tcp_secret_two; + +/* Essentially a circular list, without dynamic allocation. */ +static struct tcp_cookie_secret *tcp_secret_generating; +static struct tcp_cookie_secret *tcp_secret_primary; +static struct tcp_cookie_secret *tcp_secret_retiring; +static struct tcp_cookie_secret *tcp_secret_secondary; + +static DEFINE_SPINLOCK(tcp_secret_locker); + +/* Select a pseudo-random word in the cookie workspace. + */ +static inline u32 tcp_cookie_work(const u32 *ws, const int n) +{ + return ws[COOKIE_DIGEST_WORDS + ((COOKIE_MESSAGE_WORDS-1) & ws[n])]; +} + +/* Fill bakery[COOKIE_WORKSPACE_WORDS] with generator, updating as needed. + * Called in softirq context. + * Returns: 0 for success. + */ +int tcp_cookie_generator(u32 *bakery) +{ + unsigned long jiffy = jiffies; + + if (unlikely(time_after_eq(jiffy, tcp_secret_generating->expires))) { + spin_lock_bh(&tcp_secret_locker); + if (!time_after_eq(jiffy, tcp_secret_generating->expires)) { + /* refreshed by another */ + memcpy(bakery, + &tcp_secret_generating->secrets[0], + COOKIE_WORKSPACE_WORDS); + } else { + /* still needs refreshing */ + get_random_bytes(bakery, COOKIE_WORKSPACE_WORDS); + + /* The first time, paranoia assumes that the + * randomization function isn't as strong. But, + * this secret initialization is delayed until + * the last possible moment (packet arrival). + * Although that time is observable, it is + * unpredictably variable. Mash in the most + * volatile clock bits available, and expire the + * secret extra quickly. + */ + if (unlikely(tcp_secret_primary->expires == + tcp_secret_secondary->expires)) { + struct timespec tv; + + getnstimeofday(&tv); + bakery[COOKIE_DIGEST_WORDS+0] ^= + (u32)tv.tv_nsec; + + tcp_secret_secondary->expires = jiffy + + TCP_SECRET_1MSL + + (0x0f & tcp_cookie_work(bakery, 0)); + } else { + tcp_secret_secondary->expires = jiffy + + TCP_SECRET_LIFE + + (0xff & tcp_cookie_work(bakery, 1)); + tcp_secret_primary->expires = jiffy + + TCP_SECRET_2MSL + + (0x1f & tcp_cookie_work(bakery, 2)); + } + memcpy(&tcp_secret_secondary->secrets[0], + bakery, COOKIE_WORKSPACE_WORDS); + + rcu_assign_pointer(tcp_secret_generating, + tcp_secret_secondary); + rcu_assign_pointer(tcp_secret_retiring, + tcp_secret_primary); + /* + * Neither call_rcu() nor synchronize_rcu() needed. + * Retiring data is not freed. It is replaced after + * further (locked) pointer updates, and a quiet time + * (minimum 1MSL, maximum LIFE - 2MSL). + */ + } + spin_unlock_bh(&tcp_secret_locker); + } else { + rcu_read_lock_bh(); + memcpy(bakery, + &rcu_dereference(tcp_secret_generating)->secrets[0], + COOKIE_WORKSPACE_WORDS); + rcu_read_unlock_bh(); + } + return 0; +} +EXPORT_SYMBOL(tcp_cookie_generator); + void tcp_done(struct sock *sk) { if (sk->sk_state == TCP_SYN_SENT || sk->sk_state == TCP_SYN_RECV) @@ -2882,6 +3012,7 @@ void __init tcp_init(void) struct sk_buff *skb = NULL; unsigned long nr_pages, limit; int order, i, max_share; + unsigned long jiffy = jiffies; BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb)); @@ -2975,6 +3106,15 @@ void __init tcp_init(void) tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size); tcp_register_congestion_control(&tcp_reno); + + memset(&tcp_secret_one.secrets[0], 0, sizeof(tcp_secret_one.secrets)); + memset(&tcp_secret_two.secrets[0], 0, sizeof(tcp_secret_two.secrets)); + tcp_secret_one.expires = jiffy; /* past due */ + tcp_secret_two.expires = jiffy; /* past due */ + tcp_secret_generating = &tcp_secret_one; + tcp_secret_primary = &tcp_secret_one; + tcp_secret_retiring = &tcp_secret_two; + tcp_secret_secondary = &tcp_secret_two; } EXPORT_SYMBOL(tcp_close); -- cgit v1.2.3 From 519855c508b9a17878c0977a3cdefc09b59b30df Mon Sep 17 00:00:00 2001 From: William Allen Simpson Date: Wed, 2 Dec 2009 18:14:19 +0000 Subject: TCPCT part 1c: sysctl_tcp_cookie_size, socket option TCP_COOKIE_TRANSACTIONS Define sysctl (tcp_cookie_size) to turn on and off the cookie option default globally, instead of a compiled configuration option. Define per socket option (TCP_COOKIE_TRANSACTIONS) for setting constant data values, retrieving variable cookie values, and other facilities. Move inline tcp_clear_options() unchanged from net/tcp.h to linux/tcp.h, near its corresponding struct tcp_options_received (prior to changes). This is a straightforward re-implementation of an earlier (year-old) patch that no longer applies cleanly, with permission of the original author (Adam Langley): http://thread.gmane.org/gmane.linux.network/102586 These functions will also be used in subsequent patches that implement additional features. Requires: net: TCP_MSS_DEFAULT, TCP_MSS_DESIRED Signed-off-by: William.Allen.Simpson@gmail.com Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 8 ++++++++ include/linux/tcp.h | 33 ++++++++++++++++++++++++++++++++- include/net/tcp.h | 6 +----- net/ipv4/sysctl_net_ipv4.c | 8 ++++++++ net/ipv4/tcp_output.c | 3 +++ 5 files changed, 52 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 554440af675c..989f5538b8dd 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -164,6 +164,14 @@ tcp_congestion_control - STRING additional choices may be available based on kernel configuration. Default is set as part of kernel configuration. +tcp_cookie_size - INTEGER + Default size of TCP Cookie Transactions (TCPCT) option, that may be + overridden on a per socket basis by the TCPCT socket option. + Values greater than the maximum (16) are interpreted as the maximum. + Values greater than zero and less than the minimum (8) are interpreted + as the minimum. Odd values are interpreted as the next even value. + Default: 0 (off). + tcp_dsack - BOOLEAN Allows TCP to send "duplicate" SACKs. diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 32d7d77b4a01..eaa3113b3786 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -102,7 +102,9 @@ enum { #define TCP_QUICKACK 12 /* Block/reenable quick acks */ #define TCP_CONGESTION 13 /* Congestion control algorithm */ #define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */ +#define TCP_COOKIE_TRANSACTIONS 15 /* TCP Cookie Transactions */ +/* for TCP_INFO socket option */ #define TCPI_OPT_TIMESTAMPS 1 #define TCPI_OPT_SACK 2 #define TCPI_OPT_WSCALE 4 @@ -174,6 +176,30 @@ struct tcp_md5sig { __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN]; /* key (binary) */ }; +/* for TCP_COOKIE_TRANSACTIONS (TCPCT) socket option */ +#define TCP_COOKIE_MIN 8 /* 64-bits */ +#define TCP_COOKIE_MAX 16 /* 128-bits */ +#define TCP_COOKIE_PAIR_SIZE (2*TCP_COOKIE_MAX) + +/* Flags for both getsockopt and setsockopt */ +#define TCP_COOKIE_IN_ALWAYS (1 << 0) /* Discard SYN without cookie */ +#define TCP_COOKIE_OUT_NEVER (1 << 1) /* Prohibit outgoing cookies, + * supercedes everything. */ + +/* Flags for getsockopt */ +#define TCP_S_DATA_IN (1 << 2) /* Was data received? */ +#define TCP_S_DATA_OUT (1 << 3) /* Was data sent? */ + +/* TCP_COOKIE_TRANSACTIONS data */ +struct tcp_cookie_transactions { + __u16 tcpct_flags; /* see above */ + __u8 __tcpct_pad1; /* zero */ + __u8 tcpct_cookie_desired; /* bytes */ + __u16 tcpct_s_data_desired; /* bytes of variable data */ + __u16 tcpct_used; /* bytes in value */ + __u8 tcpct_value[TCP_MSS_DEFAULT]; +}; + #ifdef __KERNEL__ #include @@ -227,6 +253,11 @@ struct tcp_options_received { u16 mss_clamp; /* Maximal mss, negotiated at connection setup */ }; +static inline void tcp_clear_options(struct tcp_options_received *rx_opt) +{ + rx_opt->tstamp_ok = rx_opt->sack_ok = rx_opt->wscale_ok = rx_opt->snd_wscale = 0; +} + /* This is the max number of SACKS that we'll generate and process. It's safe * to increse this, although since: * size = TCPOLEN_SACK_BASE_ALIGNED (4) + n * TCPOLEN_SACK_PERBLOCK (8) @@ -435,6 +466,6 @@ static inline struct tcp_timewait_sock *tcp_twsk(const struct sock *sk) return (struct tcp_timewait_sock *)sk; } -#endif +#endif /* __KERNEL__ */ #endif /* _LINUX_TCP_H */ diff --git a/include/net/tcp.h b/include/net/tcp.h index 4a99a8e39121..738b65f01e26 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -234,6 +234,7 @@ extern int sysctl_tcp_base_mss; extern int sysctl_tcp_workaround_signed_windows; extern int sysctl_tcp_slow_start_after_idle; extern int sysctl_tcp_max_ssthresh; +extern int sysctl_tcp_cookie_size; extern atomic_t tcp_memory_allocated; extern struct percpu_counter tcp_sockets_allocated; @@ -340,11 +341,6 @@ static inline void tcp_dec_quickack_mode(struct sock *sk, extern void tcp_enter_quickack_mode(struct sock *sk); -static inline void tcp_clear_options(struct tcp_options_received *rx_opt) -{ - rx_opt->tstamp_ok = rx_opt->sack_ok = rx_opt->wscale_ok = rx_opt->snd_wscale = 0; -} - #define TCP_ECN_OK 1 #define TCP_ECN_QUEUE_CWR 2 #define TCP_ECN_DEMAND_CWR 4 diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index c00323bae044..13f7ab6ad6a0 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -712,6 +712,14 @@ static struct ctl_table ipv4_table[] = { .mode = 0644, .proc_handler = proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "tcp_cookie_size", + .data = &sysctl_tcp_cookie_size, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { .ctl_name = CTL_UNNUMBERED, .procname = "udp_mem", diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index b8b25049f257..307f318fe931 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -59,6 +59,9 @@ int sysctl_tcp_base_mss __read_mostly = 512; /* By default, RFC2861 behavior. */ int sysctl_tcp_slow_start_after_idle __read_mostly = 1; +int sysctl_tcp_cookie_size __read_mostly = 0; /* TCP_COOKIE_MAX */ + + /* Account for new data that has been sent to the network. */ static void tcp_event_new_data_sent(struct sock *sk, struct sk_buff *skb) { -- cgit v1.2.3 From 435cf559f02ea3a3159eb316f97dc88bdebe9432 Mon Sep 17 00:00:00 2001 From: William Allen Simpson Date: Wed, 2 Dec 2009 18:17:05 +0000 Subject: TCPCT part 1d: define TCP cookie option, extend existing struct's Data structures are carefully composed to require minimal additions. For example, the struct tcp_options_received cookie_plus variable fits between existing 16-bit and 8-bit variables, requiring no additional space (taking alignment into consideration). There are no additions to tcp_request_sock, and only 1 pointer in tcp_sock. This is a significantly revised implementation of an earlier (year-old) patch that no longer applies cleanly, with permission of the original author (Adam Langley): http://thread.gmane.org/gmane.linux.network/102586 The principle difference is using a TCP option to carry the cookie nonce, instead of a user configured offset in the data. This is more flexible and less subject to user configuration error. Such a cookie option has been suggested for many years, and is also useful without SYN data, allowing several related concepts to use the same extension option. "Re: SYN floods (was: does history repeat itself?)", September 9, 1996. http://www.merit.net/mail.archives/nanog/1996-09/msg00235.html "Re: what a new TCP header might look like", May 12, 1998. ftp://ftp.isi.edu/end2end/end2end-interest-1998.mail These functions will also be used in subsequent patches that implement additional features. Requires: TCPCT part 1a: add request_values parameter for sending SYNACK TCPCT part 1b: generate Responder Cookie secret TCPCT part 1c: sysctl_tcp_cookie_size, socket option TCP_COOKIE_TRANSACTIONS Signed-off-by: William.Allen.Simpson@gmail.com Signed-off-by: David S. Miller --- include/linux/tcp.h | 29 +++++++++++++---- include/net/tcp.h | 83 ++++++++++++++++++++++++++++++++++++++++++++++++ net/ipv4/tcp_ipv4.c | 20 ++++++++++++ net/ipv4/tcp_minisocks.c | 46 ++++++++++++++++++++++----- net/ipv6/tcp_ipv6.c | 13 ++++++++ 5 files changed, 177 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index eaa3113b3786..7fee8a4df931 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -247,31 +247,38 @@ struct tcp_options_received { sack_ok : 4, /* SACK seen on SYN packet */ snd_wscale : 4, /* Window scaling received from sender */ rcv_wscale : 4; /* Window scaling to send to receiver */ -/* SACKs data */ + u8 cookie_plus:6, /* bytes in authenticator/cookie option */ + cookie_out_never:1, + cookie_in_always:1; u8 num_sacks; /* Number of SACK blocks */ - u16 user_mss; /* mss requested by user in ioctl */ + u16 user_mss; /* mss requested by user in ioctl */ u16 mss_clamp; /* Maximal mss, negotiated at connection setup */ }; static inline void tcp_clear_options(struct tcp_options_received *rx_opt) { - rx_opt->tstamp_ok = rx_opt->sack_ok = rx_opt->wscale_ok = rx_opt->snd_wscale = 0; + rx_opt->tstamp_ok = rx_opt->sack_ok = 0; + rx_opt->wscale_ok = rx_opt->snd_wscale = 0; + rx_opt->cookie_plus = 0; } /* This is the max number of SACKS that we'll generate and process. It's safe - * to increse this, although since: + * to increase this, although since: * size = TCPOLEN_SACK_BASE_ALIGNED (4) + n * TCPOLEN_SACK_PERBLOCK (8) * only four options will fit in a standard TCP header */ #define TCP_NUM_SACKS 4 +struct tcp_cookie_values; +struct tcp_request_sock_ops; + struct tcp_request_sock { struct inet_request_sock req; #ifdef CONFIG_TCP_MD5SIG /* Only used by TCP MD5 Signature so far. */ const struct tcp_request_sock_ops *af_specific; #endif - u32 rcv_isn; - u32 snt_isn; + u32 rcv_isn; + u32 snt_isn; }; static inline struct tcp_request_sock *tcp_rsk(const struct request_sock *req) @@ -441,6 +448,12 @@ struct tcp_sock { /* TCP MD5 Signature Option information */ struct tcp_md5sig_info *md5sig_info; #endif + + /* When the cookie options are generated and exchanged, then this + * object holds a reference to them (cookie_values->kref). Also + * contains related tcp_cookie_transactions fields. + */ + struct tcp_cookie_values *cookie_values; }; static inline struct tcp_sock *tcp_sk(const struct sock *sk) @@ -459,6 +472,10 @@ struct tcp_timewait_sock { u16 tw_md5_keylen; u8 tw_md5_key[TCP_MD5SIG_MAXKEYLEN]; #endif + /* Few sockets in timewait have cookies; in that case, then this + * object holds a reference to them (tw_cookie_values->kref). + */ + struct tcp_cookie_values *tw_cookie_values; }; static inline struct tcp_timewait_sock *tcp_twsk(const struct sock *sk) diff --git a/include/net/tcp.h b/include/net/tcp.h index 738b65f01e26..f9abd9becabd 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -164,6 +165,7 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo); #define TCPOPT_SACK 5 /* SACK Block */ #define TCPOPT_TIMESTAMP 8 /* Better RTT estimations/PAWS */ #define TCPOPT_MD5SIG 19 /* MD5 Signature (RFC2385) */ +#define TCPOPT_COOKIE 253 /* Cookie extension (experimental) */ /* * TCP option lengths @@ -174,6 +176,10 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo); #define TCPOLEN_SACK_PERM 2 #define TCPOLEN_TIMESTAMP 10 #define TCPOLEN_MD5SIG 18 +#define TCPOLEN_COOKIE_BASE 2 /* Cookie-less header extension */ +#define TCPOLEN_COOKIE_PAIR 3 /* Cookie pair header extension */ +#define TCPOLEN_COOKIE_MIN (TCPOLEN_COOKIE_BASE+TCP_COOKIE_MIN) +#define TCPOLEN_COOKIE_MAX (TCPOLEN_COOKIE_BASE+TCP_COOKIE_MAX) /* But this is what stacks really send out. */ #define TCPOLEN_TSTAMP_ALIGNED 12 @@ -1482,6 +1488,83 @@ struct tcp_request_sock_ops { extern int tcp_cookie_generator(u32 *bakery); +/** + * struct tcp_cookie_values - each socket needs extra space for the + * cookies, together with (optional) space for any SYN data. + * + * A tcp_sock contains a pointer to the current value, and this is + * cloned to the tcp_timewait_sock. + * + * @cookie_pair: variable data from the option exchange. + * + * @cookie_desired: user specified tcpct_cookie_desired. Zero + * indicates default (sysctl_tcp_cookie_size). + * After cookie sent, remembers size of cookie. + * Range 0, TCP_COOKIE_MIN to TCP_COOKIE_MAX. + * + * @s_data_desired: user specified tcpct_s_data_desired. When the + * constant payload is specified (@s_data_constant), + * holds its length instead. + * Range 0 to TCP_MSS_DESIRED. + * + * @s_data_payload: constant data that is to be included in the + * payload of SYN or SYNACK segments when the + * cookie option is present. + */ +struct tcp_cookie_values { + struct kref kref; + u8 cookie_pair[TCP_COOKIE_PAIR_SIZE]; + u8 cookie_pair_size; + u8 cookie_desired; + u16 s_data_desired:11, + s_data_constant:1, + s_data_in:1, + s_data_out:1, + s_data_unused:2; + u8 s_data_payload[0]; +}; + +static inline void tcp_cookie_values_release(struct kref *kref) +{ + kfree(container_of(kref, struct tcp_cookie_values, kref)); +} + +/* The length of constant payload data. Note that s_data_desired is + * overloaded, depending on s_data_constant: either the length of constant + * data (returned here) or the limit on variable data. + */ +static inline int tcp_s_data_size(const struct tcp_sock *tp) +{ + return (tp->cookie_values != NULL && tp->cookie_values->s_data_constant) + ? tp->cookie_values->s_data_desired + : 0; +} + +/** + * struct tcp_extend_values - tcp_ipv?.c to tcp_output.c workspace. + * + * As tcp_request_sock has already been extended in other places, the + * only remaining method is to pass stack values along as function + * parameters. These parameters are not needed after sending SYNACK. + * + * @cookie_bakery: cryptographic secret and message workspace. + * + * @cookie_plus: bytes in authenticator/cookie option, copied from + * struct tcp_options_received (above). + */ +struct tcp_extend_values { + struct request_values rv; + u32 cookie_bakery[COOKIE_WORKSPACE_WORDS]; + u8 cookie_plus:6, + cookie_out_never:1, + cookie_in_always:1; +}; + +static inline struct tcp_extend_values *tcp_xv(struct request_values *rvp) +{ + return (struct tcp_extend_values *)rvp; +} + extern void tcp_v4_init(void); extern void tcp_init(void); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 649a36d99c73..a2bcac9b388e 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1833,6 +1833,19 @@ static int tcp_v4_init_sock(struct sock *sk) tp->af_specific = &tcp_sock_ipv4_specific; #endif + /* TCP Cookie Transactions */ + if (sysctl_tcp_cookie_size > 0) { + /* Default, cookies without s_data_payload. */ + tp->cookie_values = + kzalloc(sizeof(*tp->cookie_values), + sk->sk_allocation); + if (tp->cookie_values != NULL) + kref_init(&tp->cookie_values->kref); + } + /* Presumed zeroed, in order of appearance: + * cookie_in_always, cookie_out_never, + * s_data_constant, s_data_in, s_data_out + */ sk->sk_sndbuf = sysctl_tcp_wmem[1]; sk->sk_rcvbuf = sysctl_tcp_rmem[1]; @@ -1886,6 +1899,13 @@ void tcp_v4_destroy_sock(struct sock *sk) sk->sk_sndmsg_page = NULL; } + /* TCP Cookie Transactions */ + if (tp->cookie_values != NULL) { + kref_put(&tp->cookie_values->kref, + tcp_cookie_values_release); + tp->cookie_values = NULL; + } + percpu_counter_dec(&tcp_sockets_allocated); } diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index d3f6bbfc76f0..96852af43ca7 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -383,14 +383,43 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, const struct inet_request_sock *ireq = inet_rsk(req); struct tcp_request_sock *treq = tcp_rsk(req); struct inet_connection_sock *newicsk = inet_csk(newsk); - struct tcp_sock *newtp; + struct tcp_sock *newtp = tcp_sk(newsk); + struct tcp_sock *oldtp = tcp_sk(sk); + struct tcp_cookie_values *oldcvp = oldtp->cookie_values; + + /* TCP Cookie Transactions require space for the cookie pair, + * as it differs for each connection. There is no need to + * copy any s_data_payload stored at the original socket. + * Failure will prevent resuming the connection. + * + * Presumed copied, in order of appearance: + * cookie_in_always, cookie_out_never + */ + if (oldcvp != NULL) { + struct tcp_cookie_values *newcvp = + kzalloc(sizeof(*newtp->cookie_values), + GFP_ATOMIC); + + if (newcvp != NULL) { + kref_init(&newcvp->kref); + newcvp->cookie_desired = + oldcvp->cookie_desired; + newtp->cookie_values = newcvp; + } else { + /* Not Yet Implemented */ + newtp->cookie_values = NULL; + } + } /* Now setup tcp_sock */ - newtp = tcp_sk(newsk); newtp->pred_flags = 0; - newtp->rcv_wup = newtp->copied_seq = newtp->rcv_nxt = treq->rcv_isn + 1; - newtp->snd_sml = newtp->snd_una = newtp->snd_nxt = treq->snt_isn + 1; - newtp->snd_up = treq->snt_isn + 1; + + newtp->rcv_wup = newtp->copied_seq = + newtp->rcv_nxt = treq->rcv_isn + 1; + + newtp->snd_sml = newtp->snd_una = + newtp->snd_nxt = newtp->snd_up = + treq->snt_isn + 1 + tcp_s_data_size(oldtp); tcp_prequeue_init(newtp); @@ -423,8 +452,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, tcp_set_ca_state(newsk, TCP_CA_Open); tcp_init_xmit_timers(newsk); skb_queue_head_init(&newtp->out_of_order_queue); - newtp->write_seq = treq->snt_isn + 1; - newtp->pushed_seq = newtp->write_seq; + newtp->write_seq = newtp->pushed_seq = + treq->snt_isn + 1 + tcp_s_data_size(oldtp); newtp->rx_opt.saw_tstamp = 0; @@ -590,7 +619,8 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb, * Invalid ACK: reset will be sent by listening socket */ if ((flg & TCP_FLAG_ACK) && - (TCP_SKB_CB(skb)->ack_seq != tcp_rsk(req)->snt_isn + 1)) + (TCP_SKB_CB(skb)->ack_seq != + tcp_rsk(req)->snt_isn + 1 + tcp_s_data_size(tcp_sk(sk)))) return sk; /* Also, it would be not so bad idea to check rcv_tsecr, which diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index da6e24416d75..f2ec38289a4a 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1864,6 +1864,19 @@ static int tcp_v6_init_sock(struct sock *sk) tp->af_specific = &tcp_sock_ipv6_specific; #endif + /* TCP Cookie Transactions */ + if (sysctl_tcp_cookie_size > 0) { + /* Default, cookies without s_data_payload. */ + tp->cookie_values = + kzalloc(sizeof(*tp->cookie_values), + sk->sk_allocation); + if (tp->cookie_values != NULL) + kref_init(&tp->cookie_values->kref); + } + /* Presumed zeroed, in order of appearance: + * cookie_in_always, cookie_out_never, + * s_data_constant, s_data_in, s_data_out + */ sk->sk_sndbuf = sysctl_tcp_wmem[1]; sk->sk_rcvbuf = sysctl_tcp_rmem[1]; -- cgit v1.2.3 From 491deb24bf5bf7124141287aaf02c3219783ceab Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 3 Dec 2009 01:25:54 +0000 Subject: net 02/05: fib_rules: rename ifindex/ifname/FRA_IFNAME to iifindex/iifname/FRA_IIFNAME commit 229e77eec406ad68662f18e49fda8b5d366768c5 Author: Patrick McHardy Date: Thu Dec 3 12:05:23 2009 +0100 net: fib_rules: rename ifindex/ifname/FRA_IFNAME to iifindex/iifname/FRA_IIFNAME The next patch will add oif classification, rename interface related members and attributes to reflect that they're used for iif classification. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/fib_rules.h | 6 ++++-- include/net/fib_rules.h | 6 +++--- net/core/fib_rules.c | 36 ++++++++++++++++++------------------ 3 files changed, 25 insertions(+), 23 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h index c7e5b700bb91..7e11bb2fa655 100644 --- a/include/linux/fib_rules.h +++ b/include/linux/fib_rules.h @@ -8,7 +8,8 @@ #define FIB_RULE_PERMANENT 0x00000001 #define FIB_RULE_INVERT 0x00000002 #define FIB_RULE_UNRESOLVED 0x00000004 -#define FIB_RULE_DEV_DETACHED 0x00000008 +#define FIB_RULE_IIF_DETACHED 0x00000008 +#define FIB_RULE_DEV_DETACHED FIB_RULE_IIF_DETACHED /* try to find source address in routing lookups */ #define FIB_RULE_FIND_SADDR 0x00010000 @@ -31,7 +32,8 @@ enum { FRA_UNSPEC, FRA_DST, /* destination address */ FRA_SRC, /* source address */ - FRA_IFNAME, /* interface name */ + FRA_IIFNAME, /* interface name */ +#define FRA_IFNAME FRA_IIFNAME FRA_GOTO, /* target to jump to (FR_ACT_GOTO) */ FRA_UNUSED2, FRA_PRIORITY, /* priority/preference */ diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h index 22fb323cd85e..62bebcb2a51c 100644 --- a/include/net/fib_rules.h +++ b/include/net/fib_rules.h @@ -10,7 +10,7 @@ struct fib_rule { struct list_head list; atomic_t refcnt; - int ifindex; + int iifindex; u32 mark; u32 mark_mask; u32 pref; @@ -19,7 +19,7 @@ struct fib_rule { u8 action; u32 target; struct fib_rule * ctarget; - char ifname[IFNAMSIZ]; + char iifname[IFNAMSIZ]; struct rcu_head rcu; struct net * fr_net; }; @@ -67,7 +67,7 @@ struct fib_rules_ops { }; #define FRA_GENERIC_POLICY \ - [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \ + [FRA_IIFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \ [FRA_PRIORITY] = { .type = NLA_U32 }, \ [FRA_FWMARK] = { .type = NLA_U32 }, \ [FRA_FWMASK] = { .type = NLA_U32 }, \ diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index bd309384f8b8..8e8028cdc87f 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -135,7 +135,7 @@ static int fib_rule_match(struct fib_rule *rule, struct fib_rules_ops *ops, { int ret = 0; - if (rule->ifindex && (rule->ifindex != fl->iif)) + if (rule->iifindex && (rule->iifindex != fl->iif)) goto out; if ((rule->mark ^ fl->mark) & rule->mark_mask) @@ -248,14 +248,14 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) if (tb[FRA_PRIORITY]) rule->pref = nla_get_u32(tb[FRA_PRIORITY]); - if (tb[FRA_IFNAME]) { + if (tb[FRA_IIFNAME]) { struct net_device *dev; - rule->ifindex = -1; - nla_strlcpy(rule->ifname, tb[FRA_IFNAME], IFNAMSIZ); - dev = __dev_get_by_name(net, rule->ifname); + rule->iifindex = -1; + nla_strlcpy(rule->iifname, tb[FRA_IIFNAME], IFNAMSIZ); + dev = __dev_get_by_name(net, rule->iifname); if (dev) - rule->ifindex = dev->ifindex; + rule->iifindex = dev->ifindex; } if (tb[FRA_FWMARK]) { @@ -388,8 +388,8 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) (rule->pref != nla_get_u32(tb[FRA_PRIORITY]))) continue; - if (tb[FRA_IFNAME] && - nla_strcmp(tb[FRA_IFNAME], rule->ifname)) + if (tb[FRA_IIFNAME] && + nla_strcmp(tb[FRA_IIFNAME], rule->iifname)) continue; if (tb[FRA_FWMARK] && @@ -447,7 +447,7 @@ static inline size_t fib_rule_nlmsg_size(struct fib_rules_ops *ops, struct fib_rule *rule) { size_t payload = NLMSG_ALIGN(sizeof(struct fib_rule_hdr)) - + nla_total_size(IFNAMSIZ) /* FRA_IFNAME */ + + nla_total_size(IFNAMSIZ) /* FRA_IIFNAME */ + nla_total_size(4) /* FRA_PRIORITY */ + nla_total_size(4) /* FRA_TABLE */ + nla_total_size(4) /* FRA_FWMARK */ @@ -481,11 +481,11 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, if (rule->action == FR_ACT_GOTO && rule->ctarget == NULL) frh->flags |= FIB_RULE_UNRESOLVED; - if (rule->ifname[0]) { - NLA_PUT_STRING(skb, FRA_IFNAME, rule->ifname); + if (rule->iifname[0]) { + NLA_PUT_STRING(skb, FRA_IIFNAME, rule->iifname); - if (rule->ifindex == -1) - frh->flags |= FIB_RULE_DEV_DETACHED; + if (rule->iifindex == -1) + frh->flags |= FIB_RULE_IIF_DETACHED; } if (rule->pref) @@ -600,9 +600,9 @@ static void attach_rules(struct list_head *rules, struct net_device *dev) struct fib_rule *rule; list_for_each_entry(rule, rules, list) { - if (rule->ifindex == -1 && - strcmp(dev->name, rule->ifname) == 0) - rule->ifindex = dev->ifindex; + if (rule->iifindex == -1 && + strcmp(dev->name, rule->iifname) == 0) + rule->iifindex = dev->ifindex; } } @@ -611,8 +611,8 @@ static void detach_rules(struct list_head *rules, struct net_device *dev) struct fib_rule *rule; list_for_each_entry(rule, rules, list) - if (rule->ifindex == dev->ifindex) - rule->ifindex = -1; + if (rule->iifindex == dev->ifindex) + rule->iifindex = -1; } -- cgit v1.2.3 From 1b038a5e60c7812f19818e8a5df96d029e49c38f Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 3 Dec 2009 01:25:56 +0000 Subject: net 03/05: fib_rules: add oif classification commit 68144d350f4f6c348659c825cde6a82b34c27a91 Author: Patrick McHardy Date: Thu Dec 3 12:05:25 2009 +0100 net: fib_rules: add oif classification Support routing table lookup based on the flow's oif. This is useful to classify packets originating from sockets bound to interfaces differently. The route cache already includes the oif and needs no changes. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/fib_rules.h | 2 ++ include/net/fib_rules.h | 3 +++ net/core/fib_rules.c | 33 ++++++++++++++++++++++++++++++++- 3 files changed, 37 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h index 7e11bb2fa655..51da65b68b85 100644 --- a/include/linux/fib_rules.h +++ b/include/linux/fib_rules.h @@ -10,6 +10,7 @@ #define FIB_RULE_UNRESOLVED 0x00000004 #define FIB_RULE_IIF_DETACHED 0x00000008 #define FIB_RULE_DEV_DETACHED FIB_RULE_IIF_DETACHED +#define FIB_RULE_OIF_DETACHED 0x00000010 /* try to find source address in routing lookups */ #define FIB_RULE_FIND_SADDR 0x00010000 @@ -47,6 +48,7 @@ enum { FRA_UNUSED8, FRA_TABLE, /* Extended table id */ FRA_FWMASK, /* mask for netfilter mark */ + FRA_OIFNAME, __FRA_MAX }; diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h index 62bebcb2a51c..d4e875a58f8b 100644 --- a/include/net/fib_rules.h +++ b/include/net/fib_rules.h @@ -11,6 +11,7 @@ struct fib_rule { struct list_head list; atomic_t refcnt; int iifindex; + int oifindex; u32 mark; u32 mark_mask; u32 pref; @@ -20,6 +21,7 @@ struct fib_rule { u32 target; struct fib_rule * ctarget; char iifname[IFNAMSIZ]; + char oifname[IFNAMSIZ]; struct rcu_head rcu; struct net * fr_net; }; @@ -68,6 +70,7 @@ struct fib_rules_ops { #define FRA_GENERIC_POLICY \ [FRA_IIFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \ + [FRA_OIFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \ [FRA_PRIORITY] = { .type = NLA_U32 }, \ [FRA_FWMARK] = { .type = NLA_U32 }, \ [FRA_FWMASK] = { .type = NLA_U32 }, \ diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 8e8028cdc87f..d1a70ad4b544 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -138,6 +138,9 @@ static int fib_rule_match(struct fib_rule *rule, struct fib_rules_ops *ops, if (rule->iifindex && (rule->iifindex != fl->iif)) goto out; + if (rule->oifindex && (rule->oifindex != fl->oif)) + goto out; + if ((rule->mark ^ fl->mark) & rule->mark_mask) goto out; @@ -258,6 +261,16 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) rule->iifindex = dev->ifindex; } + if (tb[FRA_OIFNAME]) { + struct net_device *dev; + + rule->oifindex = -1; + nla_strlcpy(rule->oifname, tb[FRA_OIFNAME], IFNAMSIZ); + dev = __dev_get_by_name(net, rule->oifname); + if (dev) + rule->oifindex = dev->ifindex; + } + if (tb[FRA_FWMARK]) { rule->mark = nla_get_u32(tb[FRA_FWMARK]); if (rule->mark) @@ -392,6 +405,10 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) nla_strcmp(tb[FRA_IIFNAME], rule->iifname)) continue; + if (tb[FRA_OIFNAME] && + nla_strcmp(tb[FRA_OIFNAME], rule->oifname)) + continue; + if (tb[FRA_FWMARK] && (rule->mark != nla_get_u32(tb[FRA_FWMARK]))) continue; @@ -448,6 +465,7 @@ static inline size_t fib_rule_nlmsg_size(struct fib_rules_ops *ops, { size_t payload = NLMSG_ALIGN(sizeof(struct fib_rule_hdr)) + nla_total_size(IFNAMSIZ) /* FRA_IIFNAME */ + + nla_total_size(IFNAMSIZ) /* FRA_OIFNAME */ + nla_total_size(4) /* FRA_PRIORITY */ + nla_total_size(4) /* FRA_TABLE */ + nla_total_size(4) /* FRA_FWMARK */ @@ -488,6 +506,13 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, frh->flags |= FIB_RULE_IIF_DETACHED; } + if (rule->oifname[0]) { + NLA_PUT_STRING(skb, FRA_OIFNAME, rule->oifname); + + if (rule->oifindex == -1) + frh->flags |= FIB_RULE_OIF_DETACHED; + } + if (rule->pref) NLA_PUT_U32(skb, FRA_PRIORITY, rule->pref); @@ -603,6 +628,9 @@ static void attach_rules(struct list_head *rules, struct net_device *dev) if (rule->iifindex == -1 && strcmp(dev->name, rule->iifname) == 0) rule->iifindex = dev->ifindex; + if (rule->oifindex == -1 && + strcmp(dev->name, rule->oifname) == 0) + rule->oifindex = dev->ifindex; } } @@ -610,9 +638,12 @@ static void detach_rules(struct list_head *rules, struct net_device *dev) { struct fib_rule *rule; - list_for_each_entry(rule, rules, list) + list_for_each_entry(rule, rules, list) { if (rule->iifindex == dev->ifindex) rule->iifindex = -1; + if (rule->oifindex == dev->ifindex) + rule->oifindex = -1; + } } -- cgit v1.2.3 From 8153a10c08f1312af563bb92532002e46d3f504a Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 3 Dec 2009 01:25:58 +0000 Subject: ipv4 05/05: add sysctl to accept packets with local source addresses commit 8ec1e0ebe26087bfc5c0394ada5feb5758014fc8 Author: Patrick McHardy Date: Thu Dec 3 12:16:35 2009 +0100 ipv4: add sysctl to accept packets with local source addresses Change fib_validate_source() to accept packets with a local source address when the "accept_local" sysctl is set for the incoming inet device. Combined with the previous patches, this allows to communicate between multiple local interfaces over the wire. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 6 ++++++ include/linux/inetdevice.h | 1 + include/linux/sysctl.h | 1 + kernel/sysctl_check.c | 1 + net/ipv4/devinet.c | 1 + net/ipv4/fib_frontend.c | 11 +++++++---- 6 files changed, 17 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 989f5538b8dd..006b39dec87d 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -731,6 +731,12 @@ accept_source_route - BOOLEAN default TRUE (router) FALSE (host) +accept_local - BOOLEAN + Accept packets with local source addresses. In combination with + suitable routing, this can be used to direct packets between two + local interfaces over the wire and have them accepted properly. + default FALSE + rp_filter - INTEGER 0 - No source validation. 1 - Strict mode as defined in RFC3704 Strict Reverse Path diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index eecfa559bfb4..699e85c01a4d 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -83,6 +83,7 @@ static inline void ipv4_devconf_setall(struct in_device *in_dev) #define IN_DEV_RPFILTER(in_dev) IN_DEV_MAXCONF((in_dev), RP_FILTER) #define IN_DEV_SOURCE_ROUTE(in_dev) IN_DEV_ANDCONF((in_dev), \ ACCEPT_SOURCE_ROUTE) +#define IN_DEV_ACCEPT_LOCAL(in_dev) IN_DEV_ORCONF((in_dev), ACCEPT_LOCAL) #define IN_DEV_BOOTP_RELAY(in_dev) IN_DEV_ANDCONF((in_dev), BOOTP_RELAY) #define IN_DEV_LOG_MARTIANS(in_dev) IN_DEV_ORCONF((in_dev), LOG_MARTIANS) diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 1e4743ee6831..9f047d73a216 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -490,6 +490,7 @@ enum NET_IPV4_CONF_PROMOTE_SECONDARIES=20, NET_IPV4_CONF_ARP_ACCEPT=21, NET_IPV4_CONF_ARP_NOTIFY=22, + NET_IPV4_CONF_ACCEPT_LOCAL=23, __NET_IPV4_CONF_MAX }; diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c index b6e7aaea4604..f1d676e4b368 100644 --- a/kernel/sysctl_check.c +++ b/kernel/sysctl_check.c @@ -220,6 +220,7 @@ static const struct trans_ctl_table trans_net_ipv4_conf_vars_table[] = { { NET_IPV4_CONF_PROMOTE_SECONDARIES, "promote_secondaries" }, { NET_IPV4_CONF_ARP_ACCEPT, "arp_accept" }, { NET_IPV4_CONF_ARP_NOTIFY, "arp_notify" }, + { NET_IPV4_CONF_ACCEPT_LOCAL, "accept_local" }, {} }; diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c100709d6ddf..e3126612fcbb 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1468,6 +1468,7 @@ static struct devinet_sysctl_table { DEVINET_SYSCTL_RW_ENTRY(SEND_REDIRECTS, "send_redirects"), DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE, "accept_source_route"), + DEVINET_SYSCTL_RW_ENTRY(ACCEPT_LOCAL, "accept_local"), DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"), DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"), DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"), diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 3b373a8b0473..3323168ee52d 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -241,16 +241,17 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, .iif = oif }; struct fib_result res; - int no_addr, rpf; + int no_addr, rpf, accept_local; int ret; struct net *net; - no_addr = rpf = 0; + no_addr = rpf = accept_local = 0; rcu_read_lock(); in_dev = __in_dev_get_rcu(dev); if (in_dev) { no_addr = in_dev->ifa_list == NULL; rpf = IN_DEV_RPFILTER(in_dev); + accept_local = IN_DEV_ACCEPT_LOCAL(in_dev); } rcu_read_unlock(); @@ -260,8 +261,10 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, net = dev_net(dev); if (fib_lookup(net, &fl, &res)) goto last_resort; - if (res.type != RTN_UNICAST) - goto e_inval_res; + if (res.type != RTN_UNICAST) { + if (res.type != RTN_LOCAL || !accept_local) + goto e_inval_res; + } *spec_dst = FIB_RES_PREFSRC(res); fib_combine_itag(itag, &res); #ifdef CONFIG_IP_ROUTE_MULTIPATH -- cgit v1.2.3 From 141518c95870228da4e050fbe31a8f0c9df82c72 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Thu, 3 Dec 2009 08:36:22 +0000 Subject: tg3: Add some VPD preprocessor constants This patch cleans up the VPD code by creating preprocessor definitions and using them in the place of hardcoded constants. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 15 ++++++++------- drivers/net/tg3.h | 10 ++++++++-- include/linux/ethtool.h | 3 ++- 3 files changed, 18 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 36f2e1b8cbb1..2576effca845 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -12433,7 +12433,7 @@ skip_phy_reset: static void __devinit tg3_read_partno(struct tg3 *tp) { - unsigned char vpd_data[256]; /* in little-endian format */ + unsigned char vpd_data[TG3_NVM_VPD_LEN]; /* in little-endian format */ unsigned int i; u32 magic; @@ -12442,14 +12442,14 @@ static void __devinit tg3_read_partno(struct tg3 *tp) goto out_not_found; if (magic == TG3_EEPROM_MAGIC) { - for (i = 0; i < 256; i += 4) { + for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) { u32 tmp; /* The data is in little-endian format in NVRAM. * Use the big-endian read routines to preserve * the byte order as it exists in NVRAM. */ - if (tg3_nvram_read_be32(tp, 0x100 + i, &tmp)) + if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp)) goto out_not_found; memcpy(&vpd_data[i], &tmp, sizeof(tmp)); @@ -12458,7 +12458,7 @@ static void __devinit tg3_read_partno(struct tg3 *tp) int vpd_cap; vpd_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_VPD); - for (i = 0; i < 256; i += 4) { + for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) { u32 tmp, j = 0; __le32 v; u16 tmp16; @@ -12483,7 +12483,7 @@ static void __devinit tg3_read_partno(struct tg3 *tp) } /* Now parse and find the part number. */ - for (i = 0; i < 254; ) { + for (i = 0; i < TG3_NVM_VPD_LEN - 2; ) { unsigned char val = vpd_data[i]; unsigned int block_end; @@ -12502,7 +12502,7 @@ static void __devinit tg3_read_partno(struct tg3 *tp) (vpd_data[i + 2] << 8))); i += 3; - if (block_end > 256) + if (block_end > TG3_NVM_VPD_LEN) goto out_not_found; while (i < (block_end - 2)) { @@ -12511,7 +12511,8 @@ static void __devinit tg3_read_partno(struct tg3 *tp) int partno_len = vpd_data[i + 2]; i += 3; - if (partno_len > 24 || (partno_len + i) > 256) + if (partno_len > TG3_BPN_SIZE || + (partno_len + i) > TG3_NVM_VPD_LEN) goto out_not_found; memcpy(tp->board_part_number, diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 6a2c31071caf..cd30889650f8 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -1821,6 +1821,11 @@ #define TG3_OTP_DEFAULT 0x286c1640 + +/* Hardware Legacy NVRAM layout */ +#define TG3_NVM_VPD_OFF 0x100 +#define TG3_NVM_VPD_LEN 256 + /* Hardware Selfboot NVRAM layout */ #define TG3_NVM_HWSB_CFG1 0x00000004 #define TG3_NVM_HWSB_CFG1_MAJMSK 0xf8000000 @@ -2893,8 +2898,9 @@ struct tg3 { u32 led_ctrl; u32 phy_otp; - char board_part_number[24]; -#define TG3_VER_SIZE 32 +#define TG3_BPN_SIZE 24 + char board_part_number[TG3_BPN_SIZE]; +#define TG3_VER_SIZE ETHTOOL_FWVERS_LEN char fw_ver[TG3_VER_SIZE]; u32 nic_sram_data_cfg; u32 pci_clock_ctrl; diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index bcaa0e0a54d3..ef4a2d84d922 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -49,13 +49,14 @@ static inline __u32 ethtool_cmd_speed(struct ethtool_cmd *ep) return (ep->speed_hi << 16) | ep->speed; } +#define ETHTOOL_FWVERS_LEN 32 #define ETHTOOL_BUSINFO_LEN 32 /* these strings are set to whatever the driver author decides... */ struct ethtool_drvinfo { __u32 cmd; char driver[32]; /* driver short name, "tulip", "eepro100" */ char version[32]; /* driver version string */ - char fw_version[32]; /* firmware version string, if applicable */ + char fw_version[ETHTOOL_FWVERS_LEN]; /* firmware version string */ char bus_info[ETHTOOL_BUSINFO_LEN]; /* Bus info for this IF. */ /* For PCI devices, use pci_name(pci_dev). */ char reserved1[32]; -- cgit v1.2.3 From 69ee472f2706371ca639de49b06df91615c07d8d Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 3 Dec 2009 15:31:18 -0800 Subject: usbnet & cdc-ether: Autosuspend for online devices Using remote wakeup and delayed transmission to allow online device to go into usb autosuspend. Minimal alternate support for devices that don't support remote wakeup. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 8 +++ drivers/net/usb/usbnet.c | 157 ++++++++++++++++++++++++++++++++++++-------- include/linux/usb/usbnet.h | 6 ++ 3 files changed, 142 insertions(+), 29 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 197912d9c04a..21e183a83b99 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -411,6 +411,12 @@ static int cdc_bind(struct usbnet *dev, struct usb_interface *intf) return 0; } +static int cdc_manage_power(struct usbnet *dev, int on) +{ + dev->intf->needs_remote_wakeup = on; + return 0; +} + static const struct driver_info cdc_info = { .description = "CDC Ethernet Device", .flags = FLAG_ETHER | FLAG_LINK_INTR, @@ -418,6 +424,7 @@ static const struct driver_info cdc_info = { .bind = cdc_bind, .unbind = usbnet_cdc_unbind, .status = cdc_status, + .manage_power = cdc_manage_power, }; static const struct driver_info mbm_info = { @@ -619,6 +626,7 @@ static struct usb_driver cdc_driver = { .suspend = usbnet_suspend, .resume = usbnet_resume, .reset_resume = usbnet_resume, + .supports_autosuspend = 1, }; diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 511e7bdc4573..035fab04c0a0 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -353,7 +353,8 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) if (netif_running (dev->net) && netif_device_present (dev->net) && - !test_bit (EVENT_RX_HALT, &dev->flags)) { + !test_bit (EVENT_RX_HALT, &dev->flags) && + !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) { case -EPIPE: usbnet_defer_kevent (dev, EVENT_RX_HALT); @@ -611,15 +612,39 @@ EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs); /*-------------------------------------------------------------------------*/ // precondition: never called in_interrupt +static void usbnet_terminate_urbs(struct usbnet *dev) +{ + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup); + DECLARE_WAITQUEUE(wait, current); + int temp; + + /* ensure there are no more active urbs */ + add_wait_queue(&unlink_wakeup, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + dev->wait = &unlink_wakeup; + temp = unlink_urbs(dev, &dev->txq) + + unlink_urbs(dev, &dev->rxq); + + /* maybe wait for deletions to finish. */ + while (!skb_queue_empty(&dev->rxq) + && !skb_queue_empty(&dev->txq) + && !skb_queue_empty(&dev->done)) { + schedule_timeout(UNLINK_TIMEOUT_MS); + set_current_state(TASK_UNINTERRUPTIBLE); + if (netif_msg_ifdown(dev)) + devdbg(dev, "waited for %d urb completions", + temp); + } + set_current_state(TASK_RUNNING); + dev->wait = NULL; + remove_wait_queue(&unlink_wakeup, &wait); +} int usbnet_stop (struct net_device *net) { struct usbnet *dev = netdev_priv(net); struct driver_info *info = dev->driver_info; - int temp; int retval; - DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup); - DECLARE_WAITQUEUE (wait, current); netif_stop_queue (net); @@ -641,25 +666,8 @@ int usbnet_stop (struct net_device *net) info->description); } - if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) { - /* ensure there are no more active urbs */ - add_wait_queue(&unlink_wakeup, &wait); - dev->wait = &unlink_wakeup; - temp = unlink_urbs(dev, &dev->txq) + - unlink_urbs(dev, &dev->rxq); - - /* maybe wait for deletions to finish. */ - while (!skb_queue_empty(&dev->rxq) && - !skb_queue_empty(&dev->txq) && - !skb_queue_empty(&dev->done)) { - msleep(UNLINK_TIMEOUT_MS); - if (netif_msg_ifdown(dev)) - devdbg(dev, "waited for %d urb completions", - temp); - } - dev->wait = NULL; - remove_wait_queue(&unlink_wakeup, &wait); - } + if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) + usbnet_terminate_urbs(dev); usb_kill_urb(dev->interrupt); @@ -672,7 +680,10 @@ int usbnet_stop (struct net_device *net) dev->flags = 0; del_timer_sync (&dev->delay); tasklet_kill (&dev->bh); - usb_autopm_put_interface(dev->intf); + if (info->manage_power) + info->manage_power(dev, 0); + else + usb_autopm_put_interface(dev->intf); return 0; } @@ -753,6 +764,12 @@ int usbnet_open (struct net_device *net) // delay posting reads until we're fully open tasklet_schedule (&dev->bh); + if (info->manage_power) { + retval = info->manage_power(dev, 1); + if (retval < 0) + goto done; + usb_autopm_put_interface(dev->intf); + } return retval; done: usb_autopm_put_interface(dev->intf); @@ -881,11 +898,16 @@ kevent (struct work_struct *work) /* usb_clear_halt() needs a thread context */ if (test_bit (EVENT_TX_HALT, &dev->flags)) { unlink_urbs (dev, &dev->txq); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto fail_pipe; status = usb_clear_halt (dev->udev, dev->out); + usb_autopm_put_interface(dev->intf); if (status < 0 && status != -EPIPE && status != -ESHUTDOWN) { if (netif_msg_tx_err (dev)) +fail_pipe: deverr (dev, "can't clear tx halt, status %d", status); } else { @@ -896,11 +918,16 @@ kevent (struct work_struct *work) } if (test_bit (EVENT_RX_HALT, &dev->flags)) { unlink_urbs (dev, &dev->rxq); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto fail_halt; status = usb_clear_halt (dev->udev, dev->in); + usb_autopm_put_interface(dev->intf); if (status < 0 && status != -EPIPE && status != -ESHUTDOWN) { if (netif_msg_rx_err (dev)) +fail_halt: deverr (dev, "can't clear rx halt, status %d", status); } else { @@ -919,7 +946,12 @@ kevent (struct work_struct *work) clear_bit (EVENT_RX_MEMORY, &dev->flags); if (urb != NULL) { clear_bit (EVENT_RX_MEMORY, &dev->flags); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto fail_lowmem; rx_submit (dev, urb, GFP_KERNEL); + usb_autopm_put_interface(dev->intf); +fail_lowmem: tasklet_schedule (&dev->bh); } } @@ -929,11 +961,18 @@ kevent (struct work_struct *work) int retval = 0; clear_bit (EVENT_LINK_RESET, &dev->flags); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto skip_reset; if(info->link_reset && (retval = info->link_reset(dev)) < 0) { + usb_autopm_put_interface(dev->intf); +skip_reset: devinfo(dev, "link reset failed (%d) usbnet usb-%s-%s, %s", retval, dev->udev->bus->bus_name, dev->udev->devpath, info->description); + } else { + usb_autopm_put_interface(dev->intf); } } @@ -971,6 +1010,7 @@ static void tx_complete (struct urb *urb) case -EPROTO: case -ETIME: case -EILSEQ: + usb_mark_last_busy(dev->udev); if (!timer_pending (&dev->delay)) { mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); @@ -987,6 +1027,7 @@ static void tx_complete (struct urb *urb) } } + usb_autopm_put_interface_async(dev->intf); urb->dev = NULL; entry->state = tx_done; defer_bh(dev, skb, &dev->txq); @@ -1057,14 +1098,34 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, } } - spin_lock_irqsave (&dev->txq.lock, flags); + spin_lock_irqsave(&dev->txq.lock, flags); + retval = usb_autopm_get_interface_async(dev->intf); + if (retval < 0) { + spin_unlock_irqrestore(&dev->txq.lock, flags); + goto drop; + } + +#ifdef CONFIG_PM + /* if this triggers the device is still a sleep */ + if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { + /* transmission will be done in resume */ + usb_anchor_urb(urb, &dev->deferred); + /* no use to process more packets */ + netif_stop_queue(net); + spin_unlock_irqrestore(&dev->txq.lock, flags); + devdbg(dev, "Delaying transmission for resumption"); + goto deferred; + } +#endif switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { case -EPIPE: netif_stop_queue (net); usbnet_defer_kevent (dev, EVENT_TX_HALT); + usb_autopm_put_interface_async(dev->intf); break; default: + usb_autopm_put_interface_async(dev->intf); if (netif_msg_tx_err (dev)) devdbg (dev, "tx: submit urb err %d", retval); break; @@ -1088,6 +1149,9 @@ drop: devdbg (dev, "> tx, len %d, type 0x%x", length, skb->protocol); } +#ifdef CONFIG_PM +deferred: +#endif return NETDEV_TX_OK; } EXPORT_SYMBOL_GPL(usbnet_start_xmit); @@ -1263,6 +1327,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) dev->bh.func = usbnet_bh; dev->bh.data = (unsigned long) dev; INIT_WORK (&dev->kevent, kevent); + init_usb_anchor(&dev->deferred); dev->delay.function = usbnet_bh; dev->delay.data = (unsigned long) dev; init_timer (&dev->delay); @@ -1382,13 +1447,23 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message) struct usbnet *dev = usb_get_intfdata(intf); if (!dev->suspend_count++) { + spin_lock_irq(&dev->txq.lock); + /* don't autosuspend while transmitting */ + if (dev->txq.qlen && (message.event & PM_EVENT_AUTO)) { + spin_unlock_irq(&dev->txq.lock); + return -EBUSY; + } else { + set_bit(EVENT_DEV_ASLEEP, &dev->flags); + spin_unlock_irq(&dev->txq.lock); + } /* * accelerate emptying of the rx and queues, to avoid * having everything error out. */ netif_device_detach (dev->net); - (void) unlink_urbs (dev, &dev->rxq); - (void) unlink_urbs (dev, &dev->txq); + usbnet_terminate_urbs(dev); + usb_kill_urb(dev->interrupt); + /* * reattach so runtime management can use and * wake the device @@ -1402,10 +1477,34 @@ EXPORT_SYMBOL_GPL(usbnet_suspend); int usbnet_resume (struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); + struct sk_buff *skb; + struct urb *res; + int retval; + + if (!--dev->suspend_count) { + spin_lock_irq(&dev->txq.lock); + while ((res = usb_get_from_anchor(&dev->deferred))) { + + printk(KERN_INFO"%s has delayed data\n", __func__); + skb = (struct sk_buff *)res->context; + retval = usb_submit_urb(res, GFP_ATOMIC); + if (retval < 0) { + dev_kfree_skb_any(skb); + usb_free_urb(res); + usb_autopm_put_interface_async(dev->intf); + } else { + dev->net->trans_start = jiffies; + __skb_queue_tail(&dev->txq, skb); + } + } - if (!--dev->suspend_count) + smp_mb(); + clear_bit(EVENT_DEV_ASLEEP, &dev->flags); + spin_unlock_irq(&dev->txq.lock); + if (!(dev->txq.qlen >= TX_QLEN(dev))) + netif_start_queue(dev->net); tasklet_schedule (&dev->bh); - + } return 0; } EXPORT_SYMBOL_GPL(usbnet_resume); diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 8c84881f8478..8ce61359bf73 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -55,6 +55,7 @@ struct usbnet { struct sk_buff_head done; struct sk_buff_head rxq_pause; struct urb *interrupt; + struct usb_anchor deferred; struct tasklet_struct bh; struct work_struct kevent; @@ -65,6 +66,8 @@ struct usbnet { # define EVENT_STS_SPLIT 3 # define EVENT_LINK_RESET 4 # define EVENT_RX_PAUSED 5 +# define EVENT_DEV_WAKING 6 +# define EVENT_DEV_ASLEEP 7 }; static inline struct usb_driver *driver_of(struct usb_interface *intf) @@ -109,6 +112,9 @@ struct driver_info { /* see if peer is connected ... can sleep */ int (*check_connect)(struct usbnet *); + /* (dis)activate runtime power management */ + int (*manage_power)(struct usbnet *, int); + /* for status polling */ void (*status)(struct usbnet *, struct urb *); -- cgit v1.2.3 From fc4a7489663250360cd40d5adf06a08d1c5d54df Mon Sep 17 00:00:00 2001 From: Patrick Mullaney Date: Thu, 3 Dec 2009 15:59:22 -0800 Subject: netdevice: provide common routine for macvlan and vlan operstate management Provide common routine for the transition of operational state for a leaf device during a root device transition. Signed-off-by: Patrick Mullaney Acked-by: Arnd Bergmann Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 24 +++--------------------- include/linux/netdevice.h | 3 +++ net/8021q/vlan.c | 29 ++++------------------------- net/core/dev.c | 27 +++++++++++++++++++++++++++ 4 files changed, 37 insertions(+), 46 deletions(-) (limited to 'include/linux') diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 93c3e6edf702..21a9c9ab4b34 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -582,25 +582,6 @@ static void macvlan_port_destroy(struct net_device *dev) kfree(port); } -static void macvlan_transfer_operstate(struct net_device *dev) -{ - struct macvlan_dev *vlan = netdev_priv(dev); - const struct net_device *lowerdev = vlan->lowerdev; - - if (lowerdev->operstate == IF_OPER_DORMANT) - netif_dormant_on(dev); - else - netif_dormant_off(dev); - - if (netif_carrier_ok(lowerdev)) { - if (!netif_carrier_ok(dev)) - netif_carrier_on(dev); - } else { - if (netif_carrier_ok(dev)) - netif_carrier_off(dev); - } -} - static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) { if (tb[IFLA_ADDRESS]) { @@ -693,7 +674,7 @@ static int macvlan_newlink(struct net *src_net, struct net_device *dev, return err; list_add_tail(&vlan->list, &port->vlans); - macvlan_transfer_operstate(dev); + netif_stacked_transfer_operstate(lowerdev, dev); return 0; } @@ -768,7 +749,8 @@ static int macvlan_device_event(struct notifier_block *unused, switch (event) { case NETDEV_CHANGE: list_for_each_entry(vlan, &port->vlans, list) - macvlan_transfer_operstate(vlan->dev); + netif_stacked_transfer_operstate(vlan->lowerdev, + vlan->dev); break; case NETDEV_FEAT_CHANGE: list_for_each_entry(vlan, &port->vlans, list) { diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index daf13d367498..a3fccc85b1a0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1981,6 +1981,9 @@ unsigned long netdev_increment_features(unsigned long all, unsigned long one, unsigned long mask); unsigned long netdev_fix_features(unsigned long features, const char *name); +void netif_stacked_transfer_operstate(const struct net_device *rootdev, + struct net_device *dev); + static inline int net_gso_ok(int features, int gso_type) { int feature = gso_type << NETIF_F_GSO_SHIFT; diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index ec3769295dac..33f90e7362cc 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -184,27 +184,6 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) dev_put(real_dev); } -static void vlan_transfer_operstate(const struct net_device *dev, - struct net_device *vlandev) -{ - /* Have to respect userspace enforced dormant state - * of real device, also must allow supplicant running - * on VLAN device - */ - if (dev->operstate == IF_OPER_DORMANT) - netif_dormant_on(vlandev); - else - netif_dormant_off(vlandev); - - if (netif_carrier_ok(dev)) { - if (!netif_carrier_ok(vlandev)) - netif_carrier_on(vlandev); - } else { - if (netif_carrier_ok(vlandev)) - netif_carrier_off(vlandev); - } -} - int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id) { const char *name = real_dev->name; @@ -262,7 +241,7 @@ int register_vlan_dev(struct net_device *dev) /* Account for reference in struct vlan_dev_info */ dev_hold(real_dev); - vlan_transfer_operstate(real_dev, dev); + netif_stacked_transfer_operstate(real_dev, dev); linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */ /* So, got the sucker initialized, now lets place @@ -453,7 +432,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, if (!vlandev) continue; - vlan_transfer_operstate(dev, vlandev); + netif_stacked_transfer_operstate(dev, vlandev); } break; @@ -511,7 +490,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, vlan = vlan_dev_info(vlandev); if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) dev_change_flags(vlandev, flgs & ~IFF_UP); - vlan_transfer_operstate(dev, vlandev); + netif_stacked_transfer_operstate(dev, vlandev); } break; @@ -529,7 +508,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, vlan = vlan_dev_info(vlandev); if (!(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) dev_change_flags(vlandev, flgs | IFF_UP); - vlan_transfer_operstate(dev, vlandev); + netif_stacked_transfer_operstate(dev, vlandev); } break; diff --git a/net/core/dev.c b/net/core/dev.c index 0913a08a87d6..c36a17aafcf3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4900,6 +4900,33 @@ unsigned long netdev_fix_features(unsigned long features, const char *name) } EXPORT_SYMBOL(netdev_fix_features); +/** + * netif_stacked_transfer_operstate - transfer operstate + * @rootdev: the root or lower level device to transfer state from + * @dev: the device to transfer operstate to + * + * Transfer operational state from root to device. This is normally + * called when a stacking relationship exists between the root + * device and the device(a leaf device). + */ +void netif_stacked_transfer_operstate(const struct net_device *rootdev, + struct net_device *dev) +{ + if (rootdev->operstate == IF_OPER_DORMANT) + netif_dormant_on(dev); + else + netif_dormant_off(dev); + + if (netif_carrier_ok(rootdev)) { + if (!netif_carrier_ok(dev)) + netif_carrier_on(dev); + } else { + if (netif_carrier_ok(dev)) + netif_carrier_off(dev); + } +} +EXPORT_SYMBOL(netif_stacked_transfer_operstate); + /** * register_netdevice - register a network device * @dev: device to register -- cgit v1.2.3