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Date: Mon, 12 May 2014 02:33:43 +0200 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Rusty Russell <rusty@...tcorp.com.au>, "Michael S. Tsirkin" <mst@...hat.com>, Sridhar Samudrala <sri@...ibm.com>, Jason Wang <jasowang@...hat.com>, "David S. Miller" <davem@...emloft.net>, Willy Tarreau <w@....eu> Subject: [ 103/143] virtio-net: alloc big buffers also when guest can receive UFO 2.6.32-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Jason Wang <jasowang@...hat.com> [ 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 5c5167515d80f78f6bb538492c423adcae31ad65 (virtio-net: Allow UFO feature to be set and advertised.) Cc: Rusty Russell <rusty@...tcorp.com.au> Cc: Michael S. Tsirkin <mst@...hat.com> Cc: Sridhar Samudrala <sri@...ibm.com> Signed-off-by: Jason Wang <jasowang@...hat.com> Acked-by: Michael S. Tsirkin <mst@...hat.com> Acked-by: Rusty Russell <rusty@...tcorp.com.au> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Willy Tarreau <w@....eu> --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index bf6d850..97a56f0 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -904,7 +904,8 @@ static int virtnet_probe(struct virtio_device *vdev) /* If we can receive ANY GSO packets, we must allocate large ones. */ if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) - || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN)) + || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN) + || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_UFO)) vi->big_packets = true; if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF)) -- 1.7.12.2.21.g234cd45.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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