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authorVlad Yasevich <vyasevich@gmail.com>2017-05-23 13:38:43 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-07 12:07:45 +0200
commit9e056584770b021eb82fe378c65c12e5f71f8e68 (patch)
tree8b5c1b11c01036245e17c851ac5672c3998993b4 /drivers
parent9c6cfd5811bd53c4ef1800b768397d38c4790fbf (diff)
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
[ 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>
Diffstat (limited to 'drivers')
-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 51fc0c33a62f..7ca99899972e 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1456,6 +1456,7 @@ static const struct net_device_ops virtnet_netdev = {
#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)