linux-kernel - Re: [PATCH v3 net-next 14/24] net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch

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Date:   Sat, 13 Apr 2019 17:42:45 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     f.fainelli@...il.com, vivien.didelot@...il.com,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, georg.waibel@...sor-technik.de
Subject: Re: [PATCH v3 net-next 14/24] net: dsa: Introduce driver for NXP
 SJA1105 5-port L2 switch

On Sat, Apr 13, 2019 at 04:28:12AM +0300, Vladimir Oltean wrote:
> At this moment the following is supported:
> * Link state management through phylib
> * Autonomous L2 forwarding managed through iproute2 bridge commands. The
>   switch ports are initialized in a mode where they can only talk to the
>   CPU port. However, IP termination must be done currently through the
>   master netdevice.

Please could you explain that last sentence in more detail. Normally
the master device is just a dumb pipe. Nothing, except tcpdump,
uses it.

Thanks

     Andrew