Patch "virtio-net: enable TSO/checksum offloads for Q-in-Q vlans" has been added to the 4.9-stable tree
Subsystems (3)
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 <[email protected]> know about it.
Quoted 1 line
From foo@baz Wed May 31 09:13:34 JST 2017
From: Vlad Yasevich <[email protected]>
Date: Tue, 23 May 2017 13:38:43 -0400
Subject: virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
From: Vlad Yasevich <[email protected]>
[ 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.
--- drivers/net/virtio_net.c | 1 + 1 file changed, 1 insertion(+)
drivers/net/virtio_net.c +1 -0
@@ -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 [email protected] 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