Commit c67f5db8 authored Mar 17, 2016 by Paolo Abeni Committed by Michael S. Tsirkin Mar 17, 2016

virtio_net: replace netdev_alloc_skb_ip_align() with napi_alloc_skb()



This gives small but noticeable rx performance improvement (2-3%)
and will allow exploiting future napi improvement.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

parent 03088137

drivers/net/virtio_net.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -256,7 +256,7 @@ static struct sk_buff page_to_skb(struct virtnet_info vi,
		p = page_address(page) + offset;

		/* copy small packet so we can reuse these pages for small data */
		skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
		skb = napi_alloc_skb(&rq->napi, GOOD_COPY_LEN);
		if (unlikely(!skb))
		return NULL;