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authorJason Wang <jasowang@redhat.com>2014-07-23 16:33:54 +0800
committerDavid S. Miller <davem@davemloft.net>2014-07-23 15:12:01 -0700
commit2ffa75988fff39741e60141ce4a349e2419b41e6 (patch)
tree514ca37970b5808e9a1a2f0fbdf40397a4761eba /drivers/net/virtio_net.c
parent96b3bff4c94cebc97726dc7f019cfc7ba3ced2e1 (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.c19
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);