linux-kernel - Re: [PATCH 3/4] atl1: Main C file for Attansic L1 driver

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Date:	Mon, 20 Nov 2006 10:02:02 -0800
From:	Stephen Hemminger <shemminger@...l.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Chris Snook <csnook@...hat.com>,
	Jay Cliburn <jacliburn@...lsouth.net>, jeff@...zik.org,
	romieu@...zoreil.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] atl1: Main C file for Attansic L1 driver

On Mon, 20 Nov 2006 13:21:59 +0100
Arnd Bergmann <arnd@...db.de> wrote:

> On Monday 20 November 2006 07:12, Chris Snook wrote:
> > > 
> > > Any reason why you can't use generic_mii_ioctl?
> > 
> > I decided to mostly leave this code alone, in the hope that we could 
> > just rip out MII support entirely and nobody would mind.  What do you think?
> > 
> 
> Normally, I think you should just implement mdio_read/mdio_write functions
> and then use all the helpers from drivers/net/mii.c to implement mii_ioctl
> and other functions like ethtool_gset.
> 
> 	Arnd <><
> 

Using common MII code is good, but one problem with the existing MII code is that
it doesn't work when device is down. This makes it impossible to set speed/duplex
before device comes up.

-- 
Stephen Hemminger <shemminger@...l.org>
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