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authorVlad Yasevich <vyasevic@redhat.com>2014-05-16 09:59:17 -0400
committerDavid S. Miller <davem@davemloft.net>2014-05-16 17:06:33 -0400
commit8db24af71b31690a30ad371b35936fa10e547ee7 (patch)
tree174363a474eba5c02f24a6fb865a5b337eb5be6b /net
parente028e4b8dc93be7bc3ff9e0b94cb68d7f104883b (diff)
bridge: Add functionality to sync static fdb entries to hw
Add code that allows static fdb entires to be synced to the hw list for a specified port. This will be used later to program ports that can function in non-promiscuous mode. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/bridge/br_fdb.c56
-rw-r--r--net/bridge/br_private.h2
2 files changed, 58 insertions, 0 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 9203d5a1943..fe124e59a34 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -874,3 +874,59 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
out:
return err;
}
+
+int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p)
+{
+ struct net_bridge_fdb_entry *fdb, *tmp;
+ int i;
+ int err;
+
+ ASSERT_RTNL();
+
+ for (i = 0; i < BR_HASH_SIZE; i++) {
+ hlist_for_each_entry(fdb, &br->hash[i], hlist) {
+ /* We only care for static entries */
+ if (!fdb->is_static)
+ continue;
+
+ err = dev_uc_add(p->dev, fdb->addr.addr);
+ if (err)
+ goto rollback;
+ }
+ }
+ return 0;
+
+rollback:
+ for (i = 0; i < BR_HASH_SIZE; i++) {
+ hlist_for_each_entry(tmp, &br->hash[i], hlist) {
+ /* If we reached the fdb that failed, we can stop */
+ if (tmp == fdb)
+ break;
+
+ /* We only care for static entries */
+ if (!tmp->is_static)
+ continue;
+
+ dev_uc_del(p->dev, tmp->addr.addr);
+ }
+ }
+ return err;
+}
+
+void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p)
+{
+ struct net_bridge_fdb_entry *fdb;
+ int i;
+
+ ASSERT_RTNL();
+
+ for (i = 0; i < BR_HASH_SIZE; i++) {
+ hlist_for_each_entry_rcu(fdb, &br->hash[i], hlist) {
+ /* We only care for static entries */
+ if (!fdb->is_static)
+ continue;
+
+ dev_uc_del(p->dev, fdb->addr.addr);
+ }
+ }
+}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 5ce3191438d..c0a804b5ff0 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -399,6 +399,8 @@ int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
const unsigned char *addr, u16 nlh_flags);
int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
struct net_device *dev, int idx);
+int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
+void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p);
/* br_forward.c */
void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);