linux-kernel - Re: [PATCH RFC] Update documentation for KSZ DSA drivers so that new drivers can be added

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Message-ID: <20170908215336.GD27428@amd>
Date:   Fri, 8 Sep 2017 23:53:36 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tristram.Ha@...rochip.com
Cc:     andrew@...n.ch, muvarov@...il.com, nathan.leigh.conrad@...il.com,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Woojung.Huh@...rochip.com
Subject: Re: [PATCH RFC] Update documentation for KSZ DSA drivers so that new
 drivers can be added

Hi!

> There will be 5 drivers to support these devices:
> 
> ksz9477.c - KSZ9893/KSZ9897/KSZ9567/KSZ9566/KSZ9477
> ksz8795.c - KSZ8795/KSZ8795/KSZ8765
> ksz8895.c - KSZ8895/KSZ8864

Could we see the 8895 driver, please?

> Out of topic I have a question to ask the community regarding the DSA
> port creation:
> 
> Port 1 can be specified using the reg parameter specifying 0; port 2, 1;
> and so on.  The KSZ8794 is a variant of KSZ8795 with port 4 disabled.
> So
> lan1 = 0, lan2 = 1, lan3 = 2, cpu = 4.
> But our company Marketing does not want to promote that fact but treat
> KSZ8794 as a distinct product.
> So
> lan1 = 0, lan2 = 1, lan3 = 2, cpu = 3.
> Is this okay to hide this information inside the driver?  This is manageable
> for KSZ8794 but for KSZ8864 the first port is disabled:
> lan1 = 1, lan2 = 2, lan3 = 3, cpu = 4.
> 
> I am not sure whether DSA has or will have a way to display the port
> mapping to regular users.

Kernel is not a place to play marketing games, and people reading the
kernel sources are not targets of your marketing department.

Please let us just see the underlying hardware, as is.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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