netdev - Re: [RFC PATCH 0/4] net: dsa: link aggregation support

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Message-ID: <87r1pjvh82.fsf@waldekranz.com>
Date:   Tue, 27 Oct 2020 16:09:01 +0100
From:   Tobias Waldekranz <tobias@...dekranz.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     vivien.didelot@...il.com, f.fainelli@...il.com, olteanv@...il.com,
        netdev@...r.kernel.org
Subject: Re: [RFC PATCH 0/4] net: dsa: link aggregation support

On Tue, Oct 27, 2020 at 15:00, Andrew Lunn <andrew@...n.ch> wrote:
>> (mv88e6xxx) What is the policy regarding the use of DSA vs. EDSA?  It
>> seems like all chips capable of doing EDSA are using that, except for
>> the Peridot.
>
> Hi Tobias
>
> Marvell removed the ability to use EDSA, in the way we do in Linux
> DSA, on Peridot. One of the configuration bits is gone. So i had to
> use DSA.  It could be i just don't understand how to configure
> Peridot, and EDSA could be used, but i never figured it out.
>
> I will get back to your other questions.
>
>   Andrew

Hi Andrew,

Very interesting! Which bit is that?

Looking at the datasheets for Agate and Peridot side-by-side, the
sections named "Ether Type DSA Tag" seem to be identical.

Thanks,
Tobias