netdev - [PATCH net 0/2] Fix Ocelot VLAN regressions introduced by FDB isolation

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Date:   Fri, 22 Apr 2022 02:01:03 +0300
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com
Subject: [PATCH net 0/2] Fix Ocelot VLAN regressions introduced by FDB isolation

There are 2 regressions in the VLAN handling code of the ocelot/felix
DSA driver which can be seen when running the bridge_vlan_aware.sh
selftest. These manifest in the form of valid VLAN configurations being
rejected by the driver with incorrect extack messages.

First regression occurs when we attempt to install an egress-untagged
bridge VLAN to a bridge port that was brought up *while* it was under a
bridge (not before).

The second regression occurs when a port leaves a VLAN-aware bridge and
then re-joins it.

Both issues can be traced back to the recent commit which added VLAN
based FDB isolation in the ocelot driver.

Vladimir Oltean (2):
  net: mscc: ocelot: ignore VID 0 added by 8021q module
  net: mscc: ocelot: don't add VID 0 to ocelot->vlans when leaving
    VLAN-aware bridge

 drivers/net/ethernet/mscc/ocelot.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

-- 
2.25.1