Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b00f70b0 authored by Jason Wang's avatar Jason Wang Committed by David S. Miller
Browse files

virtio-net: unbreak csumed packets for XDP_PASS 



We drop csumed packet when do XDP for packets. This breaks
XDP_PASS when GUEST_CSUM is supported. Fix this by allowing csum flag
to be set. With this patch, simple TCP works for XDP_PASS.

Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Acked-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1830f893

drivers/net/virtio_net.c

+2 −2
Original line number Diff line number Diff line
@@ -440,7 +440,7 @@ static struct sk_buff *receive_big(struct net_device *dev, 
		struct virtio_net_hdr_mrg_rxbuf *hdr = buf;

		u32 act;



		if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))

		if (unlikely(hdr->hdr.gso_type))

			goto err_xdp;

		act = do_xdp_prog(vi, rq, xdp_prog, page, 0, len);

		switch (act) {
@@ -572,7 +572,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, 
		 * the receive path after XDP is loaded. In practice I

		 * was not able to create this condition.

		 */

		if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))

		if (unlikely(hdr->hdr.gso_type))

			goto err_xdp;



		act = do_xdp_prog(vi, rq, xdp_prog, xdp_page, offset, len);