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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
Download patch file Download diff file Expand all files Collapse all files

9
net/bridge/br_switchdev.c
View file

@ -103,7 +103,7 @@ int br_switchdev_set_port_flag(struct net_bridge_port *p,
static void
br_switchdev_fdb_call_notifiers(bool adding, const unsigned char *mac,
u16 vid, struct net_device *dev,
bool added_by_user)
bool added_by_user, bool offloaded)
{
struct switchdev_notifier_fdb_info info;
unsigned long notifier_type;
@ -111,6 +111,7 @@ br_switchdev_fdb_call_notifiers(bool adding, const unsigned char *mac,
info.addr = mac;
info.vid = vid;
info.added_by_user = added_by_user;
info.offloaded = offloaded;
notifier_type = adding ? SWITCHDEV_FDB_ADD_TO_DEVICE : SWITCHDEV_FDB_DEL_TO_DEVICE;
call_switchdev_notifiers(notifier_type, dev, &info.info);
}
@ -126,13 +127,15 @@ br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type)
br_switchdev_fdb_call_notifiers(false, fdb->key.addr.addr,
fdb->key.vlan_id,
fdb->dst->dev,
fdb->added_by_user);
fdb->added_by_user,
fdb->offloaded);
break;
case RTM_NEWNEIGH:
br_switchdev_fdb_call_notifiers(true, fdb->key.addr.addr,
fdb->key.vlan_id,
fdb->dst->dev,
fdb->added_by_user);
fdb->added_by_user,
fdb->offloaded);
break;
}
}