diff options
Diffstat (limited to 'drivers/net/vxlan.c')
-rw-r--r-- | drivers/net/vxlan.c | 73 |
1 files changed, 72 insertions, 1 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index b50705a50686..03ba1b56ba6d 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3923,18 +3923,89 @@ out: spin_unlock_bh(&vxlan->hash_lock); } +static int +vxlan_fdb_external_learn_add(struct net_device *dev, + struct switchdev_notifier_vxlan_fdb_info *fdb_info) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + int err; + + spin_lock_bh(&vxlan->hash_lock); + err = vxlan_fdb_update(vxlan, fdb_info->eth_addr, &fdb_info->remote_ip, + NUD_REACHABLE, + NLM_F_CREATE | NLM_F_REPLACE, + fdb_info->remote_port, + fdb_info->vni, + fdb_info->remote_vni, + fdb_info->remote_ifindex, + NTF_USE | NTF_SELF | NTF_EXT_LEARNED, + false); + spin_unlock_bh(&vxlan->hash_lock); + + return err; +} + +static int +vxlan_fdb_external_learn_del(struct net_device *dev, + struct switchdev_notifier_vxlan_fdb_info *fdb_info) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + struct vxlan_fdb *f; + int err = 0; + + spin_lock_bh(&vxlan->hash_lock); + + f = vxlan_find_mac(vxlan, fdb_info->eth_addr, fdb_info->vni); + if (!f) + err = -ENOENT; + else if (f->flags & NTF_EXT_LEARNED) + err = __vxlan_fdb_delete(vxlan, fdb_info->eth_addr, + fdb_info->remote_ip, + fdb_info->remote_port, + fdb_info->vni, + fdb_info->remote_vni, + fdb_info->remote_ifindex, + false); + + spin_unlock_bh(&vxlan->hash_lock); + + return err; +} + static int vxlan_switchdev_event(struct notifier_block *unused, unsigned long event, void *ptr) { struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct switchdev_notifier_vxlan_fdb_info *fdb_info; + int err = 0; switch (event) { case SWITCHDEV_VXLAN_FDB_OFFLOADED: vxlan_fdb_offloaded_set(dev, ptr); break; + case SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE: + fdb_info = ptr; + err = vxlan_fdb_external_learn_add(dev, fdb_info); + if (err) { + err = notifier_from_errno(err); + break; + } + fdb_info->offloaded = true; + vxlan_fdb_offloaded_set(dev, fdb_info); + break; + case SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE: + fdb_info = ptr; + err = vxlan_fdb_external_learn_del(dev, fdb_info); + if (err) { + err = notifier_from_errno(err); + break; + } + fdb_info->offloaded = false; + vxlan_fdb_offloaded_set(dev, fdb_info); + break; } - return 0; + return err; } static struct notifier_block vxlan_switchdev_notifier_block __read_mostly = { |