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IPoIB: Rejoin all multicast groups after a port event

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When ipoib_ib_dev_flush() is called because of a port event, the
driver needs to rejoin all multicast groups, since the flush will call
ipoib_mcast_dev_flush() (via ipoib_ib_dev_down()).  Otherwise no
(non-broadcast) multicast groups will be rejoined until the networking
core calls ->set_multicast_list again, and so multicast reception will
be broken for potentially a long time.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Eli Cohen 2006-09-22 15:22:56 -07:00 committed by Roland Dreier
parent d0df6d6d45
commit 5ccd025553
1 changed files with 3 additions and 1 deletions
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4
drivers/infiniband/ulp/ipoib/ipoib_ib.c
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@ -631,8 +631,10 @@ void ipoib_ib_dev_flush(void *_dev)
* The device could have been brought down between the start and when
* we get here, don't bring it back up if it's not configured up
*/
if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) {
ipoib_ib_dev_up(dev);
ipoib_mcast_restart_task(dev);
}
mutex_lock(&priv->vlan_mutex);