virtio-net: support multi-buffer xdp

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Driver can pass the skb to stack by build_skb_from_xdp_buff().

Driver forwards multi-buffer packets using the send queue
when XDP_TX and XDP_REDIRECT, and clears the reference of multi
pages when XDP_DROP.

Signed-off-by: Heng Qi <hengqi@linux.alibaba.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Heng Qi 2023-01-14 16:22:29 +08:00 • committed by David S. Miller

parent 18117a842a

commit fab89bafa9

1 changed files with 10 additions and 55 deletions

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drivers/net/virtio_net.c

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