Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 30/94] virtio-net: enable TSO/checksum offloads for Q-in-Q vlans | Date | Mon, 5 Jun 2017 18:17:06 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Vlad Yasevich <vyasevich@gmail.com>
[ Upstream commit 2836b4f224d4fd7d1a2b23c3eecaf0f0ae199a74 ]
Since virtio does not provide it's own ndo_features_check handler, TSO, and now checksum offload, are disabled for stacked vlans. Re-enable the support and let the host take care of it. This restores/improves Guest-to-Guest performance over Q-in-Q vlans.
Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/virtio_net.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1456,6 +1456,7 @@ static const struct net_device_ops virtn #ifdef CONFIG_NET_RX_BUSY_POLL .ndo_busy_poll = virtnet_busy_poll, #endif + .ndo_features_check = passthru_features_check, }; static void virtnet_config_changed_work(struct work_struct *work)
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