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

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Date:	Mon, 20 Nov 2006 12:15:24 -0800
From:	Stephen Hemminger <shemminger@...l.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Arnd Bergmann <arnd@...db.de>, Chris Snook <csnook@...hat.com>,
	Jay Cliburn <jacliburn@...lsouth.net>, 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 14:35:10 -0500
Jeff Garzik <jeff@...zik.org> wrote:

> Stephen Hemminger wrote:
> > 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.
> 
> 
> That's not true at all.  drivers/net/mii.c uses caller-provided locking 
> in all cases, and there is nothing that prevents the common code from 
> being called when the interface is down.
> 
> You are probably thinking about all the netif_running() checks found in 
> the drivers, particularly in the ->begin() hook.
> 
> 	Jeff
> 
> 

Yeah it is a driver specific thing. All users of mii seem to block changes so
I thought it was in base code.


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