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Commit 8db24af7 authored by Vlad Yasevich's avatar Vlad Yasevich Committed by David S. Miller
Browse files

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: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e028e4b8

net/bridge/br_fdb.c

+56 −0
Original line number Diff line number Diff line
@@ -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);

		}

	}

}

net/bridge/br_private.h

+2 −0
Original line number Diff line number Diff line
@@ -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);