Commit e4166625 authored May 21, 2013 by Jason Wang Committed by David S. Miller May 23, 2013

virtio_net: enable napi for all possible queues during open



Commit 55257d72 (virtio-net: fill only rx
queues which are being used) only does the napi enabling during open for
curr_queue_pairs. This will break multiqueue receiving since napi of new queues
were still disabled after changing the number of queues.

This patch fixes this by enabling napi for all possible queues during open.

Cc: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 35f079eb

drivers/net/virtio_net.c

+5 −4

Original line number	Diff line number	Diff line
		@@ -636,7 +636,8 @@ static int virtnet_open(struct net_device *dev)
		struct virtnet_info *vi = netdev_priv(dev);
		int i;

		for (i = 0; i < vi->curr_queue_pairs; i++) {
		for (i = 0; i < vi->max_queue_pairs; i++) {
		if (i < vi->curr_queue_pairs)
		/* Make sure we have some buffers: if oom use wq. */
		if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
		schedule_delayed_work(&vi->refill, 0);