netdev - Re: mv88e6321, dual cpu port

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Date:   Tue, 24 Jan 2023 08:21:35 +0100 (CET)
From:   Angelo Dureghello <angelo@...nel-space.org>
To:     Andrew Lunn <andrew@...n.ch>
cc:     Vladimir Oltean <olteanv@...il.com>, netdev@...r.kernel.org
Subject: Re: mv88e6321, dual cpu port


Hi Andrew and Vladimir,

On Mon, 23 Jan 2023, Andrew Lunn wrote:

>> I don't know what this means:
>>
>> | I am now trying this way on mv88e6321,
>> | - one vlan using dsa kernel driver,
>> | - other vlan using dsdt userspace driver.
>>
>> specifically what is "dsdt userspace driver".
>
> I think DSDT is Marvells vendor crap code.
>
Yes, i have seen someone succeeding using it, why do you think it's 
crap ?

> Having two drivers for the same hardware is a recipe for disaster.
>
>  Andrew
>

What i need is something as

         eth0 ->  vlan1 -> port5(rmii)  ->  port 0,1,2
         eth1 ->  vlan2 -> port6(rgmii) ->  port 3,4

The custom board i have here is already designed in this way
(2 fixed-link mac-to-mac connecitons) and trying my best to have
the above layout working.

If you have any suggestion on how to proceed, really appreciated.

Thanks,
angelo