From: Vladislav Yasevich <vyasev...@gmail.com> Date: Fri, 5 May 2017 16:17:41 -0400
> Vlan devices, like all other software devices, enable > NETIF_F_HW_CSUM feature. However, unlike all the othe other > software devices, vlans will switch to using IP|IPV6_CSUM > features, if the underlying devices uses them. In these situations, > checksum offload features on the vlan device can't be controlled > via ethtool. > > This patch makes vlans keep HW_CSUM feature if the underlying > device supports checksum offloading. This makes vlan devices > behave like other software devices, and restores control to the > user. > > A side-effect is that some offload settings (typically UFO) > may be enabled on the vlan device while being disabled on the HW. > However, the GSO code will correctly process the packets. This > actually results in slightly better raw throughput. > > Signed-off-by: Vladislav Yasevich <vyase...@redhat.com> > --- > V2: posted the right patch. Applied, thanks.
