Re: [RFC net-next PATCH 00/13] Add PCS core support

[Daniel Golle]

On Mon, Apr 07, 2025 at 07:21:38PM +0200, Christian Marangi (Ansuel) wrote:
> Il giorno lun 7 apr 2025 alle ore 19:00 Sean Anderson
> > I agree that a "cells" approach would require this, but
> >
> > - There are no in-tree examples of where this is necessary
> > - I think this would be easy to add when necessary
> >
> 
> There are no in-tree cause only now we are starting to support
> complex configuration with multiple PCS placed outside the MAC.
> 
> I feel it's better to define a standard API for them now before
> we permit even more MAC driver to implement custom property
> and have to address tons of workaround for compatibility.

Qualcomm's PCS driver will require offering multiple phylink_pcs by a
single device/of_node. So while it's true that there is currently no
in-tree user for that, that very user is already knocking on our doors.

See
https://patchwork.kernel.org/project/netdevbpf/list/?series=931658&state=*