[v8,bpf-next,3/5] virtio-net: support IFF_TX_SKB_NO_LINEAR
diff mbox series

Message ID 20210218204908.5455-4-alobakin@pm.me
State New, archived
Headers show
Series
  • xsk: build skb by page (aka generic zerocopy xmit)
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Commit Message

Alexander Lobakin Feb. 18, 2021, 8:50 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>
Acked-by: John Fastabend <john.fastabend@gmail.com>
---
 drivers/net/virtio_net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--
2.30.1

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;