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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-06 14:45:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-06 14:45:08 -0700
commitaae3dbb4776e7916b6cd442d00159bea27a695c1 (patch)
treed074c5d783a81e7e2e084b1eba77f57459da7e37 /net/switchdev/switchdev.c
parentec3604c7a5aae8953545b0d05495357009a960e5 (diff)
parent66bed8465a808400eb14562510e26c8818082cb8 (diff)
downloadlwn-aae3dbb4776e7916b6cd442d00159bea27a695c1.tar.gz
lwn-aae3dbb4776e7916b6cd442d00159bea27a695c1.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: 1) Support ipv6 checksum offload in sunvnet driver, from Shannon Nelson. 2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric Dumazet. 3) Allow generic XDP to work on virtual devices, from John Fastabend. 4) Add bpf device maps and XDP_REDIRECT, which can be used to build arbitrary switching frameworks using XDP. From John Fastabend. 5) Remove UFO offloads from the tree, gave us little other than bugs. 6) Remove the IPSEC flow cache, from Florian Westphal. 7) Support ipv6 route offload in mlxsw driver. 8) Support VF representors in bnxt_en, from Sathya Perla. 9) Add support for forward error correction modes to ethtool, from Vidya Sagar Ravipati. 10) Add time filter for packet scheduler action dumping, from Jamal Hadi Salim. 11) Extend the zerocopy sendmsg() used by virtio and tap to regular sockets via MSG_ZEROCOPY. From Willem de Bruijn. 12) Significantly rework value tracking in the BPF verifier, from Edward Cree. 13) Add new jump instructions to eBPF, from Daniel Borkmann. 14) Rework rtnetlink plumbing so that operations can be run without taking the RTNL semaphore. From Florian Westphal. 15) Support XDP in tap driver, from Jason Wang. 16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal. 17) Add Huawei hinic ethernet driver. 18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan Delalande. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits) i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq i40e: avoid NVM acquire deadlock during NVM update drivers: net: xgene: Remove return statement from void function drivers: net: xgene: Configure tx/rx delay for ACPI drivers: net: xgene: Read tx/rx delay for ACPI rocker: fix kcalloc parameter order rds: Fix non-atomic operation on shared flag variable net: sched: don't use GFP_KERNEL under spin lock vhost_net: correctly check tx avail during rx busy polling net: mdio-mux: add mdio_mux parameter to mdio_mux_init() rxrpc: Make service connection lookup always check for retry net: stmmac: Delete dead code for MDIO registration gianfar: Fix Tx flow control deactivation cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6 cxgb4: Fix pause frame count in t4_get_port_stats cxgb4: fix memory leak tun: rename generic_xdp to skb_xdp tun: reserve extra headroom only when XDP is set net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping net: dsa: bcm_sf2: Advertise number of egress queues ...
Diffstat (limited to 'net/switchdev/switchdev.c')
-rw-r--r--net/switchdev/switchdev.c519
1 files changed, 0 insertions, 519 deletions
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 25dc67ef9d37..0531b41d1f2d 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -343,8 +343,6 @@ static size_t switchdev_obj_size(const struct switchdev_obj *obj)
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
return sizeof(struct switchdev_obj_port_vlan);
- case SWITCHDEV_OBJ_ID_PORT_FDB:
- return sizeof(struct switchdev_obj_port_fdb);
case SWITCHDEV_OBJ_ID_PORT_MDB:
return sizeof(struct switchdev_obj_port_mdb);
default:
@@ -534,43 +532,6 @@ int switchdev_port_obj_del(struct net_device *dev,
}
EXPORT_SYMBOL_GPL(switchdev_port_obj_del);
-/**
- * switchdev_port_obj_dump - Dump port objects
- *
- * @dev: port device
- * @id: object ID
- * @obj: object to dump
- * @cb: function to call with a filled object
- *
- * rtnl_lock must be held.
- */
-int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
- switchdev_obj_dump_cb_t *cb)
-{
- const struct switchdev_ops *ops = dev->switchdev_ops;
- struct net_device *lower_dev;
- struct list_head *iter;
- int err = -EOPNOTSUPP;
-
- ASSERT_RTNL();
-
- if (ops && ops->switchdev_port_obj_dump)
- return ops->switchdev_port_obj_dump(dev, obj, cb);
-
- /* Switch device port(s) may be stacked under
- * bond/team/vlan dev, so recurse down to dump objects on
- * first port at bottom of stack.
- */
-
- netdev_for_each_lower_dev(dev, lower_dev, iter) {
- err = switchdev_port_obj_dump(lower_dev, obj, cb);
- break;
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_obj_dump);
-
static ATOMIC_NOTIFIER_HEAD(switchdev_notif_chain);
/**
@@ -613,486 +574,6 @@ int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
}
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
-struct switchdev_vlan_dump {
- struct switchdev_obj_port_vlan vlan;
- struct sk_buff *skb;
- u32 filter_mask;
- u16 flags;
- u16 begin;
- u16 end;
-};
-
-static int switchdev_port_vlan_dump_put(struct switchdev_vlan_dump *dump)
-{
- struct bridge_vlan_info vinfo;
-
- vinfo.flags = dump->flags;
-
- if (dump->begin == 0 && dump->end == 0) {
- return 0;
- } else if (dump->begin == dump->end) {
- vinfo.vid = dump->begin;
- if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
- sizeof(vinfo), &vinfo))
- return -EMSGSIZE;
- } else {
- vinfo.vid = dump->begin;
- vinfo.flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN;
- if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
- sizeof(vinfo), &vinfo))
- return -EMSGSIZE;
- vinfo.vid = dump->end;
- vinfo.flags &= ~BRIDGE_VLAN_INFO_RANGE_BEGIN;
- vinfo.flags |= BRIDGE_VLAN_INFO_RANGE_END;
- if (nla_put(dump->skb, IFLA_BRIDGE_VLAN_INFO,
- sizeof(vinfo), &vinfo))
- return -EMSGSIZE;
- }
-
- return 0;
-}
-
-static int switchdev_port_vlan_dump_cb(struct switchdev_obj *obj)
-{
- struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
- struct switchdev_vlan_dump *dump =
- container_of(vlan, struct switchdev_vlan_dump, vlan);
- int err = 0;
-
- if (vlan->vid_begin > vlan->vid_end)
- return -EINVAL;
-
- if (dump->filter_mask & RTEXT_FILTER_BRVLAN) {
- dump->flags = vlan->flags;
- for (dump->begin = dump->end = vlan->vid_begin;
- dump->begin <= vlan->vid_end;
- dump->begin++, dump->end++) {
- err = switchdev_port_vlan_dump_put(dump);
- if (err)
- return err;
- }
- } else if (dump->filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) {
- if (dump->begin > vlan->vid_begin &&
- dump->begin >= vlan->vid_end) {
- if ((dump->begin - 1) == vlan->vid_end &&
- dump->flags == vlan->flags) {
- /* prepend */
- dump->begin = vlan->vid_begin;
- } else {
- err = switchdev_port_vlan_dump_put(dump);
- dump->flags = vlan->flags;
- dump->begin = vlan->vid_begin;
- dump->end = vlan->vid_end;
- }
- } else if (dump->end <= vlan->vid_begin &&
- dump->end < vlan->vid_end) {
- if ((dump->end + 1) == vlan->vid_begin &&
- dump->flags == vlan->flags) {
- /* append */
- dump->end = vlan->vid_end;
- } else {
- err = switchdev_port_vlan_dump_put(dump);
- dump->flags = vlan->flags;
- dump->begin = vlan->vid_begin;
- dump->end = vlan->vid_end;
- }
- } else {
- err = -EINVAL;
- }
- }
-
- return err;
-}
-
-static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
- u32 filter_mask)
-{
- struct switchdev_vlan_dump dump = {
- .vlan.obj.orig_dev = dev,
- .vlan.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
- .skb = skb,
- .filter_mask = filter_mask,
- };
- int err = 0;
-
- if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
- (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
- err = switchdev_port_obj_dump(dev, &dump.vlan.obj,
- switchdev_port_vlan_dump_cb);
- if (err)
- goto err_out;
- if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
- /* last one */
- err = switchdev_port_vlan_dump_put(&dump);
- }
-
-err_out:
- return err == -EOPNOTSUPP ? 0 : err;
-}
-
-/**
- * switchdev_port_bridge_getlink - Get bridge port attributes
- *
- * @dev: port device
- *
- * Called for SELF on rtnl_bridge_getlink to get bridge port
- * attributes.
- */
-int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
- struct net_device *dev, u32 filter_mask,
- int nlflags)
-{
- struct switchdev_attr attr = {
- .orig_dev = dev,
- .id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
- };
- u16 mode = BRIDGE_MODE_UNDEF;
- u32 mask = BR_LEARNING | BR_LEARNING_SYNC | BR_FLOOD;
- int err;
-
- if (!netif_is_bridge_port(dev))
- return -EOPNOTSUPP;
-
- err = switchdev_port_attr_get(dev, &attr);
- if (err && err != -EOPNOTSUPP)
- return err;
-
- return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
- attr.u.brport_flags, mask, nlflags,
- filter_mask, switchdev_port_vlan_fill);
-}
-EXPORT_SYMBOL_GPL(switchdev_port_bridge_getlink);
-
-static int switchdev_port_br_setflag(struct net_device *dev,
- struct nlattr *nlattr,
- unsigned long brport_flag)
-{
- struct switchdev_attr attr = {
- .orig_dev = dev,
- .id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
- };
- u8 flag = nla_get_u8(nlattr);
- int err;
-
- err = switchdev_port_attr_get(dev, &attr);
- if (err)
- return err;
-
- if (flag)
- attr.u.brport_flags |= brport_flag;
- else
- attr.u.brport_flags &= ~brport_flag;
-
- return switchdev_port_attr_set(dev, &attr);
-}
-
-static const struct nla_policy
-switchdev_port_bridge_policy[IFLA_BRPORT_MAX + 1] = {
- [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
- [IFLA_BRPORT_COST] = { .type = NLA_U32 },
- [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
- [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
- [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
- [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
- [IFLA_BRPORT_FAST_LEAVE] = { .type = NLA_U8 },
- [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
- [IFLA_BRPORT_LEARNING_SYNC] = { .type = NLA_U8 },
- [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
-};
-
-static int switchdev_port_br_setlink_protinfo(struct net_device *dev,
- struct nlattr *protinfo)
-{
- struct nlattr *attr;
- int rem;
- int err;
-
- err = nla_validate_nested(protinfo, IFLA_BRPORT_MAX,
- switchdev_port_bridge_policy, NULL);
- if (err)
- return err;
-
- nla_for_each_nested(attr, protinfo, rem) {
- switch (nla_type(attr)) {
- case IFLA_BRPORT_LEARNING:
- err = switchdev_port_br_setflag(dev, attr,
- BR_LEARNING);
- break;
- case IFLA_BRPORT_LEARNING_SYNC:
- err = switchdev_port_br_setflag(dev, attr,
- BR_LEARNING_SYNC);
- break;
- case IFLA_BRPORT_UNICAST_FLOOD:
- err = switchdev_port_br_setflag(dev, attr, BR_FLOOD);
- break;
- default:
- err = -EOPNOTSUPP;
- break;
- }
- if (err)
- return err;
- }
-
- return 0;
-}
-
-static int switchdev_port_br_afspec(struct net_device *dev,
- struct nlattr *afspec,
- int (*f)(struct net_device *dev,
- const struct switchdev_obj *obj))
-{
- struct nlattr *attr;
- struct bridge_vlan_info *vinfo;
- struct switchdev_obj_port_vlan vlan = {
- .obj.orig_dev = dev,
- .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
- };
- int rem;
- int err;
-
- nla_for_each_nested(attr, afspec, rem) {
- if (nla_type(attr) != IFLA_BRIDGE_VLAN_INFO)
- continue;
- if (nla_len(attr) != sizeof(struct bridge_vlan_info))
- return -EINVAL;
- vinfo = nla_data(attr);
- if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
- return -EINVAL;
- vlan.flags = vinfo->flags;
- if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
- if (vlan.vid_begin)
- return -EINVAL;
- vlan.vid_begin = vinfo->vid;
- /* don't allow range of pvids */
- if (vlan.flags & BRIDGE_VLAN_INFO_PVID)
- return -EINVAL;
- } else if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END) {
- if (!vlan.vid_begin)
- return -EINVAL;
- vlan.vid_end = vinfo->vid;
- if (vlan.vid_end <= vlan.vid_begin)
- return -EINVAL;
- err = f(dev, &vlan.obj);
- if (err)
- return err;
- vlan.vid_begin = 0;
- } else {
- if (vlan.vid_begin)
- return -EINVAL;
- vlan.vid_begin = vinfo->vid;
- vlan.vid_end = vinfo->vid;
- err = f(dev, &vlan.obj);
- if (err)
- return err;
- vlan.vid_begin = 0;
- }
- }
-
- return 0;
-}
-
-/**
- * switchdev_port_bridge_setlink - Set bridge port attributes
- *
- * @dev: port device
- * @nlh: netlink header
- * @flags: netlink flags
- *
- * Called for SELF on rtnl_bridge_setlink to set bridge port
- * attributes.
- */
-int switchdev_port_bridge_setlink(struct net_device *dev,
- struct nlmsghdr *nlh, u16 flags)
-{
- struct nlattr *protinfo;
- struct nlattr *afspec;
- int err = 0;
-
- if (!netif_is_bridge_port(dev))
- return -EOPNOTSUPP;
-
- protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
- IFLA_PROTINFO);
- if (protinfo) {
- err = switchdev_port_br_setlink_protinfo(dev, protinfo);
- if (err)
- return err;
- }
-
- afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
- IFLA_AF_SPEC);
- if (afspec)
- err = switchdev_port_br_afspec(dev, afspec,
- switchdev_port_obj_add);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_bridge_setlink);
-
-/**
- * switchdev_port_bridge_dellink - Set bridge port attributes
- *
- * @dev: port device
- * @nlh: netlink header
- * @flags: netlink flags
- *
- * Called for SELF on rtnl_bridge_dellink to set bridge port
- * attributes.
- */
-int switchdev_port_bridge_dellink(struct net_device *dev,
- struct nlmsghdr *nlh, u16 flags)
-{
- struct nlattr *afspec;
-
- if (!netif_is_bridge_port(dev))
- return -EOPNOTSUPP;
-
- afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
- IFLA_AF_SPEC);
- if (afspec)
- return switchdev_port_br_afspec(dev, afspec,
- switchdev_port_obj_del);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_bridge_dellink);
-
-/**
- * switchdev_port_fdb_add - Add FDB (MAC/VLAN) entry to port
- *
- * @ndmsg: netlink hdr
- * @nlattr: netlink attributes
- * @dev: port device
- * @addr: MAC address to add
- * @vid: VLAN to add
- *
- * Add FDB entry to switch device.
- */
-int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
- struct net_device *dev, const unsigned char *addr,
- u16 vid, u16 nlm_flags)
-{
- struct switchdev_obj_port_fdb fdb = {
- .obj.orig_dev = dev,
- .obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
- .vid = vid,
- };
-
- ether_addr_copy(fdb.addr, addr);
- return switchdev_port_obj_add(dev, &fdb.obj);
-}
-EXPORT_SYMBOL_GPL(switchdev_port_fdb_add);
-
-/**
- * switchdev_port_fdb_del - Delete FDB (MAC/VLAN) entry from port
- *
- * @ndmsg: netlink hdr
- * @nlattr: netlink attributes
- * @dev: port device
- * @addr: MAC address to delete
- * @vid: VLAN to delete
- *
- * Delete FDB entry from switch device.
- */
-int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
- struct net_device *dev, const unsigned char *addr,
- u16 vid)
-{
- struct switchdev_obj_port_fdb fdb = {
- .obj.orig_dev = dev,
- .obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
- .vid = vid,
- };
-
- ether_addr_copy(fdb.addr, addr);
- return switchdev_port_obj_del(dev, &fdb.obj);
-}
-EXPORT_SYMBOL_GPL(switchdev_port_fdb_del);
-
-struct switchdev_fdb_dump {
- struct switchdev_obj_port_fdb fdb;
- struct net_device *dev;
- struct sk_buff *skb;
- struct netlink_callback *cb;
- int idx;
-};
-
-static int switchdev_port_fdb_dump_cb(struct switchdev_obj *obj)
-{
- struct switchdev_obj_port_fdb *fdb = SWITCHDEV_OBJ_PORT_FDB(obj);
- struct switchdev_fdb_dump *dump =
- container_of(fdb, struct switchdev_fdb_dump, fdb);
- u32 portid = NETLINK_CB(dump->cb->skb).portid;
- u32 seq = dump->cb->nlh->nlmsg_seq;
- struct nlmsghdr *nlh;
- struct ndmsg *ndm;
-
- if (dump->idx < dump->cb->args[2])
- goto skip;
-
- nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
- sizeof(*ndm), NLM_F_MULTI);
- if (!nlh)
- return -EMSGSIZE;
-
- ndm = nlmsg_data(nlh);
- ndm->ndm_family = AF_BRIDGE;
- ndm->ndm_pad1 = 0;
- ndm->ndm_pad2 = 0;
- ndm->ndm_flags = NTF_SELF;
- ndm->ndm_type = 0;
- ndm->ndm_ifindex = dump->dev->ifindex;
- ndm->ndm_state = fdb->ndm_state;
-
- if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, fdb->addr))
- goto nla_put_failure;
-
- if (fdb->vid && nla_put_u16(dump->skb, NDA_VLAN, fdb->vid))
- goto nla_put_failure;
-
- nlmsg_end(dump->skb, nlh);
-
-skip:
- dump->idx++;
- return 0;
-
-nla_put_failure:
- nlmsg_cancel(dump->skb, nlh);
- return -EMSGSIZE;
-}
-
-/**
- * switchdev_port_fdb_dump - Dump port FDB (MAC/VLAN) entries
- *
- * @skb: netlink skb
- * @cb: netlink callback
- * @dev: port device
- * @filter_dev: filter device
- * @idx:
- *
- * Dump FDB entries from switch device.
- */
-int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
- struct net_device *dev,
- struct net_device *filter_dev, int *idx)
-{
- struct switchdev_fdb_dump dump = {
- .fdb.obj.orig_dev = dev,
- .fdb.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
- .dev = dev,
- .skb = skb,
- .cb = cb,
- .idx = *idx,
- };
- int err;
-
- err = switchdev_port_obj_dump(dev, &dump.fdb.obj,
- switchdev_port_fdb_dump_cb);
- *idx = dump.idx;
- return err;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_fdb_dump);
-
bool switchdev_port_same_parent_id(struct net_device *a,
struct net_device *b)
{