[v6,bpf-next,4/6] virtio-net: support IFF_TX_SKB_NO_LINEAR
diff mbox series

Message ID 20210216172640.374487-5-alobakin@pm.me
State New, archived
Headers show
Series
  • xsk: build skb by page (aka generic zerocopy xmit)
Related show

Commit Message

Alexander Lobakin Feb. 16, 2021, 5:27 p.m. UTC
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>

Virtio net supports the case where the skb linear space is empty, so add
priv_flags.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
---
 drivers/net/virtio_net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ba8e63792549..f2ff6c3906c1 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2972,7 +2972,8 @@  static int virtnet_probe(struct virtio_device *vdev)
 		return -ENOMEM;
 
 	/* Set up network device as normal. */
-	dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
+	dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE |
+			   IFF_TX_SKB_NO_LINEAR;
 	dev->netdev_ops = &virtnet_netdev;
 	dev->features = NETIF_F_HIGHDMA;