netdev - Re: [PATCH net-next 06/12] net: mscc: ocelot: adjust MTU on the CPU port in NPI mode

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Date:   Tue, 12 Nov 2019 13:32:57 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>, jakub.kicinski@...ronome.com,
        davem@...emloft.net, alexandre.belloni@...tlin.com
Cc:     andrew@...n.ch, vivien.didelot@...il.com,
        joergen.andreasen@...rochip.com, allan.nielsen@...rochip.com,
        horatiu.vultur@...rochip.com, claudiu.manoil@....com,
        netdev@...r.kernel.org, Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH net-next 06/12] net: mscc: ocelot: adjust MTU on the CPU
 port in NPI mode

On 11/12/19 4:44 AM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> When using the NPI port, the DSA tag is passed through Ethernet, so the
> switch's MAC needs to accept it as it comes from the DSA master. Increase
> the MTU on the external CPU port to account for the length of the
> injection header.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian