Linux Ethernet Bridging - Jul 2015 - [Bridge] [PATCH net-next 0/4] Stacked vlan TSO for virtual devices

Basically virtual devices do not need to segment double tagged packets.
This patch set adds TSO feature for double tagged packets to several
virtual devices, which can be realized by simply setting
.ndo_features_check to passthru_features_check.

Toshiaki Makita (4):
  macvlan: Don't segment multiple tagged packets on macvlan device
  veth: Don't segment multiple tagged packets on veth device
  bridge: Don't segment multiple tagged packets on bridge device
  tuntap: Don't segment multiple tagged packets on tap device

 drivers/net/macvlan.c  | 1 +
 drivers/net/tun.c      | 1 +
 drivers/net/veth.c     | 1 +
 net/bridge/br_device.c | 1 +
 4 files changed, 4 insertions(+)

-- 
1.8.1.2

Bridge devices don't need to segment multiple tagged packets since thier
ports can segment them.

Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
---
 net/bridge/br_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 4ff77a1..0aa8f5c 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -339,6 +339,7 @@ static const struct net_device_ops br_netdev_ops = {
 	.ndo_bridge_getlink	 = br_getlink,
 	.ndo_bridge_setlink	 = br_setlink,
 	.ndo_bridge_dellink	 = br_dellink,
+	.ndo_features_check	 = passthru_features_check,
 };
 
 static void br_dev_free(struct net_device *dev)
-- 
1.8.1.2

From: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
Date: Fri, 31 Jul 2015 15:03:23 +0900
> Basically virtual devices do not need to segment double tagged packets.
> This patch set adds TSO feature for double tagged packets to several
> virtual devices, which can be realized by simply setting
> .ndo_features_check to passthru_features_check.
Series applied, thank you.