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authorVlad Yasevich <vyasevich@gmail.com>2017-05-23 13:38:43 -0400
committerDavid S. Miller <davem@davemloft.net>2017-05-24 16:27:14 -0400
commit2836b4f224d4fd7d1a2b23c3eecaf0f0ae199a74 (patch)
tree2b342f50dd0d585ce34c08e68cd6d1fcd4ddae40 /drivers/net/virtio_net.c
parentbe2net: Fix offload features for Q-in-Q packets (diff)
downloadlinux-dev-2836b4f224d4fd7d1a2b23c3eecaf0f0ae199a74.tar.xz
linux-dev-2836b4f224d4fd7d1a2b23c3eecaf0f0ae199a74.zip
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
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>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9320d96a1632..3e9246cc49c3 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1989,6 +1989,7 @@ static const struct net_device_ops virtnet_netdev = {
.ndo_poll_controller = virtnet_netpoll,
#endif
.ndo_xdp = virtnet_xdp,
+ .ndo_features_check = passthru_features_check,
};
static void virtnet_config_changed_work(struct work_struct *work)