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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-09 09:38:59 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-09 09:38:59 -0800
commit99b48cff405333afe26ac603b37639c410a48e5d (patch)
tree31b427930317b1596ca6070585f66a108b722580 /include
parent200d018eff4be3a1fb9823441cfcebb7de86a677 (diff)
parentd3dcc077bf88806201093f86325ec656e4dbfbce (diff)
downloadlwn-99b48cff405333afe26ac603b37639c410a48e5d.tar.gz
lwn-99b48cff405333afe26ac603b37639c410a48e5d.zip
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NETLINK]: Put {IFA,IFLA}_{RTA,PAYLOAD} macros back for userspace. [NET_SCHED] sch_htb: turn intermediate classes into leaves [NET_SCHED] sch_cbq: deactivating when grafting, purging etc. [XFRM]: Fix XFRMGRP_REPORT to use correct multicast group. [NET]: Force a cache line split in hh_cache in SMP. [NETPOLL]: make arp replies through netpoll use mac address of sender [NETLINK]: Restore API compatibility of address and neighbour bits [AX.25]: Fix default address and broadcast address initialization. [AX.25]: Constify ax25 utility functions [BNX2]: Add an error check. [NET]: Convert hh_lock to seqlock.
Diffstat (limited to 'include')
-rw-r--r--include/linux/if_addr.h6
-rw-r--r--include/linux/if_link.h6
-rw-r--r--include/linux/netdevice.h11
-rw-r--r--include/linux/rtnetlink.h2
-rw-r--r--include/linux/xfrm.h2
-rw-r--r--include/net/ax25.h20
-rw-r--r--include/net/neighbour.h18
7 files changed, 53 insertions, 12 deletions
diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h
index dbe8f6120a40..d557e4ce9b6b 100644
--- a/include/linux/if_addr.h
+++ b/include/linux/if_addr.h
@@ -52,4 +52,10 @@ struct ifa_cacheinfo
__u32 tstamp; /* updated timestamp, hundredths of seconds */
};
+/* backwards compatibility for userspace */
+#ifndef __KERNEL__
+#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
+#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
+#endif
+
#endif
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index e963a077e6f5..35ed3b5467f3 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -82,6 +82,12 @@ enum
#define IFLA_MAX (__IFLA_MAX - 1)
+/* backwards compatibility for userspace */
+#ifndef __KERNEL__
+#define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
+#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
+#endif
+
/* ifi_flags.
IFF_* flags.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c57088f575a3..6be767c76b37 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -193,13 +193,20 @@ struct hh_cache
{
struct hh_cache *hh_next; /* Next entry */
atomic_t hh_refcnt; /* number of users */
- __be16 hh_type; /* protocol identifier, f.e ETH_P_IP
+/*
+ * We want hh_output, hh_len, hh_lock and hh_data be a in a separate
+ * cache line on SMP.
+ * They are mostly read, but hh_refcnt may be changed quite frequently,
+ * incurring cache line ping pongs.
+ */
+ __be16 hh_type ____cacheline_aligned_in_smp;
+ /* protocol identifier, f.e ETH_P_IP
* NOTE: For VLANs, this will be the
* encapuslated type. --BLG
*/
u16 hh_len; /* length of header */
int (*hh_output)(struct sk_buff *skb);
- rwlock_t hh_lock;
+ seqlock_t hh_lock;
/* cached hardware header; allow for machine alignment needs. */
#define HH_DATA_MOD 16
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 493297acdae8..4a629ea70cc4 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -3,6 +3,8 @@
#include <linux/netlink.h>
#include <linux/if_link.h>
+#include <linux/if_addr.h>
+#include <linux/neighbour.h>
/****
* Routing/neighbour discovery messages.
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 088ba8113f7e..9529ea1ae392 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -357,7 +357,7 @@ struct xfrm_user_report {
#define XFRMGRP_EXPIRE 2
#define XFRMGRP_SA 4
#define XFRMGRP_POLICY 8
-#define XFRMGRP_REPORT 0x10
+#define XFRMGRP_REPORT 0x20
#endif
enum xfrm_nlgroups {
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 69374cd1a857..e1d116f11923 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -282,15 +282,17 @@ extern void ax25_fillin_cb(ax25_cb *, ax25_dev *);
extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
/* ax25_addr.c */
-extern ax25_address null_ax25_address;
-extern char *ax2asc(char *buf, ax25_address *);
-extern void asc2ax(ax25_address *addr, char *callsign);
-extern int ax25cmp(ax25_address *, ax25_address *);
-extern int ax25digicmp(ax25_digi *, ax25_digi *);
-extern unsigned char *ax25_addr_parse(unsigned char *, int, ax25_address *, ax25_address *, ax25_digi *, int *, int *);
-extern int ax25_addr_build(unsigned char *, ax25_address *, ax25_address *, ax25_digi *, int, int);
-extern int ax25_addr_size(ax25_digi *);
-extern void ax25_digi_invert(ax25_digi *, ax25_digi *);
+extern const ax25_address ax25_bcast;
+extern const ax25_address ax25_defaddr;
+extern const ax25_address null_ax25_address;
+extern int ax25cmp(const ax25_address *, const ax25_address *);
+extern int ax25digicmp(const ax25_digi *, const ax25_digi *);
+extern const unsigned char *ax25_addr_parse(const unsigned char *, int,
+ ax25_address *, ax25_address *, ax25_digi *, int *, int *);
+extern int ax25_addr_build(unsigned char *, const ax25_address *,
+ const ax25_address *, const ax25_digi *, int, int);
+extern int ax25_addr_size(const ax25_digi *);
+extern void ax25_digi_invert(const ax25_digi *, ax25_digi *);
/* ax25_dev.c */
extern ax25_dev *ax25_dev_list;
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 23967031ddb7..3725b93c52f3 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -309,6 +309,24 @@ static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
return 0;
}
+static inline int neigh_hh_output(struct hh_cache *hh, struct sk_buff *skb)
+{
+ unsigned seq;
+ int hh_len;
+
+ do {
+ int hh_alen;
+
+ seq = read_seqbegin(&hh->hh_lock);
+ hh_len = hh->hh_len;
+ hh_alen = HH_DATA_ALIGN(hh_len);
+ memcpy(skb->data - hh_alen, hh->hh_data, hh_alen);
+ } while (read_seqretry(&hh->hh_lock, seq));
+
+ skb_push(skb, hh_len);
+ return hh->hh_output(skb);
+}
+
static inline struct neighbour *
__neigh_lookup(struct neigh_table *tbl, const void *pkey, struct net_device *dev, int creat)
{