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virtio-net: correctly enable multiqueue 

Commit 4490001029 ("virtio-net: enable
multiqueue by default") blindly set the affinity instead of queues
during probe which can cause a mismatch of #queues between guest and
host. This patch fixes it by setting queues.

Reported-by: Theodore Ts'o <tytso@mit.edu>
Tested-by: Theodore Ts'o <tytso@mit.edu>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Fixes: 49000102901 ("virtio-net: enable multiqueue by default")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jason Wang 2016-12-13 14:23:05 +08:00 committed by David S. Miller
parent 8fa3b6f939
commit a220871be6
1 changed files with 3 additions and 1 deletions
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4
drivers/net/virtio_net.c
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@ -1930,7 +1930,9 @@ static int virtnet_probe(struct virtio_device *vdev)
goto free_unregister_netdev;
}
virtnet_set_affinity(vi);
rtnl_lock();
virtnet_set_queues(vi, vi->curr_queue_pairs);
rtnl_unlock();
/* Assume link up if device can't report link status,
otherwise get link status from config. */