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Date:   Sat, 31 Jul 2021 03:25:55 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports

On Fri, Jul 30, 2021 at 10:07:06PM +0300, Vladimir Oltean wrote:
> > After enabling it, I noticed .port_fdb_{add,del} are called with VID=0
> > (which it does not use now) unless I turn on VLAN filtering. Is that
> > normal?
> 
> They are called with the VID from the learned packet.
> If the bridge is VLAN-unaware, the MAC SA is learned with VID 0.
> Generally, VID 0 is always used for VLAN-unaware bridging. You can
> privately translate VID 0 to whatever VLAN ID you use in VLAN-unaware
> mode.

Now the issue is PVID is always set to the bridge's vlan_default_pvid,
regardless of VLAN awareless.

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