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| author | Scott Feldman <sfeldma@gmail.com> | 2015-06-14 18:33:11 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-16 00:08:49 (GMT) |
| commit | b4ad7baa01970d2c5096fbbcb0c593e199c6f18b (patch) | |
| tree | 62322b92940372483784bbb5981b9c3d27af9cff /Documentation/networking | |
| parent | 023033b1ec821951795d982a81cb942b879d276e (diff) | |
| download | linux-b4ad7baa01970d2c5096fbbcb0c593e199c6f18b.tar.xz | |
bridge: del external_learned fdbs from device on flush or ageout
We need to delete from offload the device externally learnded fdbs when any
one of these events happen:
1) Bridge ages out fdb. (When bridge is doing ageing vs. device doing
ageing. If device is doing ageing, it would send SWITCHDEV_FDB_DEL
directly).
2) STP state change flushes fdbs on port.
3) User uses sysfs interface to flush fdbs from bridge or bridge port:
echo 1 >/sys/class/net/BR_DEV/bridge/flush
echo 1 >/sys/class/net/BR_PORT/brport/flush
4) Offload driver send event SWITCHDEV_FDB_DEL to delete fdb entry.
For rocker, we can now get called to delete fdb entry in wait and nowait
contexts, so set NOWAIT flag when deleting fdb entry.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/switchdev.txt | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt index da82cd7..c5d7ade 100644 --- a/Documentation/networking/switchdev.txt +++ b/Documentation/networking/switchdev.txt @@ -251,15 +251,8 @@ out stale FDB entries. To keep an FDB entry "alive", the driver should refresh the FDB entry by calling call_switchdev_notifiers(SWITCHDEV_FDB_ADD, ...). The notification will reset the FDB entry's last-used time to now. The driver should rate limit refresh notifications, for example, no more than once a -second. If the FDB entry expires, ndo_fdb_del is called to remove entry from -the device. XXX: this last part isn't currently correct: ndo_fdb_del isn't -called, so the stale entry remains in device...this need to get fixed. - -FDB Flush -^^^^^^^^^ - -XXX: Unimplemented. Need to support FDB flush by bridge driver for port and -remove both static and learned FDB entries. +second. If the FDB entry expires, fdb_delete is called to remove entry from +the device. STP State Change on Port ^^^^^^^^^^^^^^^^^^^^^^^^ |