Subject: Re: [PATCH net-next v14 5/6] net: dsa: mv88e6xxx: Add support for mv88e6393x family of Marvell

From: Marek Behún <[email-masked]>
Date: Wed, 13 Jan 2021 04:56:53 +0100

On Tue, 12 Jan 2021 23:58:24 +0200
Vladimir Oltean <[email-masked]> wrote:

> On Tue, Jan 12, 2021 at 07:06:29PM +0100, Marek Behún wrote:
> > On Tue, 12 Jan 2021 16:29:09 +0000
> > Russell King - ARM Linux admin <[email-masked]> wrote:
> >   
> > > I'm seriously thinking about changing the phylink_validate() interface
> > > such that the question of which link _modes_ are supported no longer
> > > comes up with MAC drivers, but instead MAC drivers say what interface
> > > modes, speeds for each interface mode, duplexes for each speed are
> > > supported.  
> > 
> > BTW this would also solve the situation where DSA needs to know which
> > interface modes are supported on a particular port to know which modes
> > we can try on SFP connected to a DSA port.  
> 
> What do you mean here? What makes this specific to DSA?

https://www.spinics.net/lists/netdev/msg675899.html