Re: [PATCH net 3/3] virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2017-05-18 15:06:35
On Thu, May 18, 2017 at 09:31:05AM -0400, Vladislav Yasevich wrote:
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. CC: "Michael S. Tsirkin" <mst@redhat.com> CC: Jason Wang <jasowang@redhat.com> CC: virtualization@lists.linux-foundation.org Signed-off-by: Vladislav Yasevich <redacted>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
quoted hunk ↗ jump to hunk
--- drivers/net/virtio_net.c | 1 + 1 file changed, 1 insertion(+)diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8324a5e..341fb96 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c@@ -2028,6 +2028,7 @@ 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)-- 2.7.4