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Date: Thu, 20 Mar 2014 17:10:55 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, 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> Subject: [PATCH 3.4 04/35] virtio-net: alloc big buffers also when guest can receive UFO 3.4-stable 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: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1084,7 +1084,8 @@ static int virtnet_probe(struct virtio_d /* 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)) -- 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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