diff options
Diffstat (limited to 'net/bridge/br_switchdev.c')
| -rw-r--r-- | net/bridge/br_switchdev.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c index 6bf518d78f02..8a45b1cfe06f 100644 --- a/net/bridge/br_switchdev.c +++ b/net/bridge/br_switchdev.c @@ -270,6 +270,60 @@ static void nbp_switchdev_del(struct net_bridge_port *p) } } +static int br_fdb_replay_one(struct net_bridge *br, struct notifier_block *nb, + const struct net_bridge_fdb_entry *fdb, + unsigned long action, const void *ctx) +{ + const struct net_bridge_port *p = READ_ONCE(fdb->dst); + struct switchdev_notifier_fdb_info item; + int err; + + item.addr = fdb->key.addr.addr; + item.vid = fdb->key.vlan_id; + item.added_by_user = test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags); + item.offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags); + item.is_local = test_bit(BR_FDB_LOCAL, &fdb->flags); + item.info.dev = (!p || item.is_local) ? br->dev : p->dev; + item.info.ctx = ctx; + + err = nb->notifier_call(nb, action, &item); + return notifier_to_errno(err); +} + +static int br_fdb_replay(const struct net_device *br_dev, const void *ctx, + bool adding, struct notifier_block *nb) +{ + struct net_bridge_fdb_entry *fdb; + struct net_bridge *br; + unsigned long action; + int err = 0; + + if (!nb) + return 0; + + if (!netif_is_bridge_master(br_dev)) + return -EINVAL; + + br = netdev_priv(br_dev); + + if (adding) + action = SWITCHDEV_FDB_ADD_TO_DEVICE; + else + action = SWITCHDEV_FDB_DEL_TO_DEVICE; + + rcu_read_lock(); + + hlist_for_each_entry_rcu(fdb, &br->fdb_list, fdb_node) { + err = br_fdb_replay_one(br, nb, fdb, action, ctx); + if (err) + break; + } + + rcu_read_unlock(); + + return err; +} + static int nbp_switchdev_sync_objs(struct net_bridge_port *p, const void *ctx, struct notifier_block *atomic_nb, struct notifier_block *blocking_nb, |