diff options
| author | Jason Wang <jasowang@redhat.com> | 2014-07-23 16:33:54 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-23 15:12:01 -0700 |
| commit | 2ffa75988fff39741e60141ce4a349e2419b41e6 (patch) | |
| tree | 514ca37970b5808e9a1a2f0fbdf40397a4761eba /drivers/net/virtio_net.c | |
| parent | 96b3bff4c94cebc97726dc7f019cfc7ba3ced2e1 (diff) | |
virtio-net: introduce virtnet_receive()
Move common receive logic to a new helper virtnet_receive(). It will
also be used by rx busy polling method.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/virtio_net.c')
| -rw-r--r-- | drivers/net/virtio_net.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 7d9f84a91f37..b647d0d5c00e 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -725,15 +725,12 @@ static void refill_work(struct work_struct *work) } } -static int virtnet_poll(struct napi_struct *napi, int budget) +static int virtnet_receive(struct receive_queue *rq, int budget) { - struct receive_queue *rq = - container_of(napi, struct receive_queue, napi); struct virtnet_info *vi = rq->vq->vdev->priv; + unsigned int len, received = 0; void *buf; - unsigned int r, len, received = 0; -again: while (received < budget && (buf = virtqueue_get_buf(rq->vq, &len)) != NULL) { receive_buf(rq, buf, len); @@ -745,6 +742,18 @@ again: schedule_delayed_work(&vi->refill, 0); } + return received; +} + +static int virtnet_poll(struct napi_struct *napi, int budget) +{ + struct receive_queue *rq = + container_of(napi, struct receive_queue, napi); + unsigned int r, received = 0; + +again: + received += virtnet_receive(rq, budget - received); + /* Out of packets? */ if (received < budget) { r = virtqueue_enable_cb_prepare(rq->vq); |