linux-kernel - Re: [PATCH net-next 1/6] ether: add EtherType for proprietary Realtek protocols

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Date:   Tue, 12 Oct 2021 16:09:50 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Alvin Šipraga <alvin@...s.dk>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        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>,
        Rob Herring <robh+dt@...nel.org>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Alvin Šipraga <alsi@...g-olufsen.dk>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 1/6] ether: add EtherType for proprietary
 Realtek protocols

On Tue, Oct 12, 2021 at 02:35:50PM +0200, Alvin Šipraga wrote:
> From: Alvin Šipraga <alsi@...g-olufsen.dk>
> 
> Add a new EtherType ETH_P_REALTEK to the if_ether.h uapi header. The
> EtherType 0x8899 is used in a number of different protocols from Realtek
> Semiconductor Corp [1], so no general assumptions should be made when
> trying to decode such packets. Observed protocols include:
> 
>   0x1 - Realtek Remote Control protocol [2]
>   0x2 - Echo protocol [2]
>   0x3 - Loop detection protocol [2]
>   0x4 - RTL8365MB 4- and 8-byte switch CPU tag protocols [3]
>   0x9 - RTL8306 switch CPU tag protocol [4]
>   0xA - RTL8366RB switch CPU tag protocol [4]
> 
> [1] https://lore.kernel.org/netdev/CACRpkdYQthFgjwVzHyK3DeYUOdcYyWmdjDPG=Rf9B3VrJ12Rzg@mail.gmail.com/
> [2] https://www.wireshark.org/lists/ethereal-dev/200409/msg00090.html
> [3] https://lore.kernel.org/netdev/20210822193145.1312668-4-alvin@pqrs.dk/
> [4] https://lore.kernel.org/netdev/20200708122537.1341307-2-linus.walleij@linaro.org/
> 
> Suggested-by: Andrew Lunn <andrew@...n.ch>
> Signed-off-by: Alvin Šipraga <alsi@...g-olufsen.dk>
> ---

Reviewed-by: Vladimir Oltean <olteanv@...il.com>