virtio-net: alloc big buffers also when guest can receive UFO
[ Upstream commit 0e7ede80d929ff0f830c44a543daa1acd590c749 ]
We should alloc big buffers also when guest can receive UFO
packets to let the big packets fit into guest rx buffer.
Fixes 5c5167515d
(virtio-net: Allow UFO feature to be set and advertised.)
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1597,7 +1597,8 @@ static int virtnet_probe(struct virtio_device *vdev)
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/* If we can receive ANY GSO packets, we must allocate large ones. */
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if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) ||
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virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) ||
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virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN))
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virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN) ||
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virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_UFO))
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vi->big_packets = true;
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if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
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