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bridge: switchdev: Allow clearing FDB entry offload indication

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Currently, an FDB entry only ceases being offloaded when it is deleted.
This changes with VxLAN encapsulation.

Devices capable of performing VxLAN encapsulation usually have only one
FDB table, unlike the software data path which has two - one in the
bridge driver and another in the VxLAN driver.

Therefore, bridge FDB entries pointing to a VxLAN device are only
offloaded if there is a corresponding entry in the VxLAN FDB.

Allow clearing the offload indication in case the corresponding entry
was deleted from the VxLAN FDB.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel
2018-10-17 08:53:29 +00:00
committed by David S. Miller
parent 045a5a9914
commit e9ba0fbc7d
8 changed files with 20 additions and 13 deletions
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4
net/bridge/br_fdb.c
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@@ -1152,7 +1152,7 @@ int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
}
void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p,
const unsigned char *addr, u16 vid)
const unsigned char *addr, u16 vid, bool offloaded)
{
struct net_bridge_fdb_entry *fdb;
@@ -1160,7 +1160,7 @@ void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p,
fdb = br_fdb_find(br, addr, vid);
if (fdb)
fdb->offloaded = 1;
fdb->offloaded = offloaded;
spin_unlock_bh(&br->hash_lock);
}