[PATCH net-next] virtio_net: replace netdev_alloc_skb_ip_align() with napi_alloc_skb()
From: Paolo Abeni <pabeni@redhat.com>
Date: 2016-03-17 14:44:00
Also in:
virtualization
Subsystem:
networking drivers, the rest, virtio net driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, "Michael S. Tsirkin", Jason Wang
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> --- drivers/net/virtio_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index fb0eae4..49d84e5 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c@@ -260,7 +260,7 @@ 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;
--
1.8.3.1