linux-kernel - Re: [net-next: PATCH 09/12] Documentation: ACPI: DSD: introduce DSA description

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Message-ID: <YrGoXXBgHvyifny3@smile.fi.intel.com>
Date:   Tue, 21 Jun 2022 14:15:41 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     Marcin Wojtas <mw@...ihalf.com>, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, netdev@...r.kernel.org,
        rafael@...nel.org, lenb@...nel.org, andrew@...n.ch,
        vivien.didelot@...il.com, f.fainelli@...il.com, olteanv@...il.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, linux@...linux.org.uk, hkallweit1@...il.com,
        gjb@...ihalf.com, jaz@...ihalf.com, tn@...ihalf.com,
        Samer.El-Haj-Mahmoud@....com, upstream@...ihalf.com
Subject: Re: [net-next: PATCH 09/12] Documentation: ACPI: DSD: introduce DSA
 description

On Tue, Jun 21, 2022 at 10:45:56AM +0100, Sudeep Holla wrote:
> On Mon, Jun 20, 2022 at 05:02:22PM +0200, Marcin Wojtas wrote:
> > Describe the Distributed Switch Architecture (DSA) - compliant
> > MDIO devices. In ACPI world they are represented as children
> > of the MDIO busses, which are responsible for their enumeration
> > based on the standard _ADR fields and description in _DSD objects
> > under device properties UUID [1].
> > 
> > [1] http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf

> Why is this document part of Linux code base ?

It's fine, but your are right with your latter questions.

> How will the other OSes be aware of this ?

Should be a standard somewhere.

> I assume there was some repository to maintain such DSDs so that it
> is accessible for other OSes. I am not agreeing or disagreeing on the
> change itself, but I am concerned about this present in the kernel
> code.

I dunno we have a such, but the closest I may imagine is MIPI standardization,
that we have at least for cameras and sound.

I would suggest to go and work with MIPI for network / DSA / etc area, so
everybody else will be aware of the standard.

-- 
With Best Regards,
Andy Shevchenko