Commit 2ffa7598 authored by Jason Wang's avatar Jason Wang Committed by David S. Miller

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: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 96b3bff4
......@@ -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);
......
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