On 05/22/2013 01:22 PM, Jason Wang wrote:
> Commit 55257d72bd1c51f25106350f4983ec19f62ed1fa (virtio-net: fill only rx
> queues which are being used) forgets to enable napi for new enabled queues which
> breaks the multiqueue receiving. This patch fixes it.
>
> Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
> ---
> drivers/net/virtio_net.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index 2d6abac..9b2f59f 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -914,9 +914,11 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs)
> queue_pairs);
> return -EINVAL;
> } else {
> - for (i = vi->curr_queue_pairs; i < queue_pairs; i++)
> + for (i = vi->curr_queue_pairs; i < queue_pairs; i++) {
> if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
> schedule_delayed_work(&vi->refill, 0);
> + virtnet_napi_enable(&vi->rq[i]);
> + }
> vi->curr_queue_pairs = queue_pairs;
> }
>
A bug were found in this patch, will send a new version.
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