netdev - Re: [PATCH net-next RFC 0/3] net: dsa: realtek: drop custom slave MII

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Date:   Wed, 29 Jun 2022 13:49:49 -0300
From:   Luiz Angelo Daros de Luca <luizluca@...il.com>
To:     Arınç ÜNAL <arinc.unal@...nc9.com>
Cc:     "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alvin Šipraga <alsi@...g-olufsen.dk>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>, krzk+dt@...nel.org
Subject: Re: [PATCH net-next RFC 0/3] net: dsa: realtek: drop custom slave MII

Em qua., 29 de jun. de 2022 às 09:30, Arınç ÜNAL
<arinc.unal@...nc9.com> escreveu:
>
> On 29.06.2022 06:54, Luiz Angelo Daros de Luca wrote:
> > The last patch cleans all the deprecated code while keeping the kernel
> > messages. However, if there is no "mdio" node but there is a node with
> > the old compatible stings "realtek,smi-mdio", it will show an error. It
> > should still work but it will use polling instead of interruptions.
> >
> > My idea, if accepted, is to submit patches 1 and 2 now. After a
> > reasonable period, submit patch 3.
> >
> > I don't have an SMI-connected device and I'm asking for testers. It
> > would be nice to test the first 2 patches with:
>
> I'd love to test this on an Asus RT-AC88U which has got the
> smi-connected RTL8365MB switch but modifying the OpenWrt SDK to build
> for latest kernels is a really painful process. I know it's not related
> to this patch series but, does anyone know a more efficient way of
> building the kernel with rootfs with sufficent userspace tools? Like, am
> I supposed to use Buildroot, Yocto?

Hello Arinç,

You can backport those patches to mostly any device already using
rtl8365mb. The code it changes is mostly the same since the files
migrated to the realtek directory. However, you do need to backport
fe7324b932 (which is also easily applicable). I believe only the last
patch will conflict as some new functions were added to the
dsa_switch_ops that is being removed.

Regards,

Luiz