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authorJason Wang <jasowang@redhat.com>2013-05-21 20:03:58 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-23 00:10:59 -0700
commite4166625edfd2d808ddda00c7e7e901f4f3b8cc0 (patch)
tree29849509c02ed394462c19c6e6b7a1eb41bdcacf /drivers/net
parent35f079ebbc860dcd1cca70890c9c8d59c1145525 (diff)
downloadop-kernel-dev-e4166625edfd2d808ddda00c7e7e901f4f3b8cc0.zip
op-kernel-dev-e4166625edfd2d808ddda00c7e7e901f4f3b8cc0.tar.gz
virtio_net: enable napi for all possible queues during open
Commit 55257d72bd1c51f25106350f4983ec19f62ed1fa (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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/virtio_net.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 655bb25..c9e0038 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -636,10 +636,11 @@ 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++) {
- /* 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);
+ 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);
virtnet_napi_enable(&vi->rq[i]);
}
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