This is a note to let you know that I've just added the patch titled
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
virtio-net-enable-tso-checksum-offloads-for-q-in-q-vlans.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed May 31 09:13:34 JST 2017
From: Vlad Yasevich <vyasevich@xxxxxxxxx>
Date: Tue, 23 May 2017 13:38:43 -0400
Subject: virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
From: Vlad Yasevich <vyasevich@xxxxxxxxx>
[ 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@xxxxxxxxxx>
Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Signed-off-by: Vladislav Yasevich <vyasevic@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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)
Patches currently in stable-queue which might be from vyasevich@xxxxxxxxx are
queue-4.9/vlan-fix-tcp-checksum-offloads-in-q-in-q-vlans.patch
queue-4.9/be2net-fix-offload-features-for-q-in-q-packets.patch
queue-4.9/virtio-net-enable-tso-checksum-offloads-for-q-in-q-vlans.patch
queue-4.9/sctp-fix-icmp-processing-if-skb-is-non-linear.patch