Subject: Re: [PATCH net-next] net: bridge: add per-port group_fwd_mask with less restrictions

From: Stephen Hemminger <[email-masked]>
Date: Fri, 29 Sep 2017 08:14:20 -0700

On Wed, 27 Sep 2017 16:12:44 +0300
Nikolay Aleksandrov <[email-masked]> wrote:

> We need to be able to transparently forward most link-local frames via
> tunnels (e.g. vxlan, qinq). Currently the bridge's group_fwd_mask has a
> mask which restricts the forwarding of STP and LACP, but we need to be able
> to forward these over tunnels and control that forwarding on a per-port
> basis thus add a new per-port group_fwd_mask option which only disallows
> mac pause frames to be forwarded (they're always dropped anyway).
> The patch does not change the current default situation - all of the others
> are still restricted unless configured for forwarding.
> We have successfully tested this patch with LACP and STP forwarding over
> VxLAN and qinq tunnels.
> 
> Signed-off-by: Nikolay Aleksandrov <[email-masked]>

LACP is fine, but STP must not be forwarded if STP in user or kernel
mode is enabled.

Please update this patch or revert it.