netdev - Re: [PATCH] fec: use interrupt for MDIO completion indication

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Message-ID: <20100715040956.GA7690@jasper.tkos.co.il>
Date:	Thu, 15 Jul 2010 07:09:56 +0300
From:	Baruch Siach <baruch@...s.co.il>
To:	Bryan Wu <bryan.wu@...onical.com>
Cc:	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	Greg Ungerer <gerg@...inux.org>,
	Wolfram Sang <w.sang@...gutronix.de>
Subject: Re: [PATCH] fec: use interrupt for MDIO completion indication

Hi Bryan,

On Thu, Jul 15, 2010 at 11:31:56AM +0800, Bryan Wu wrote:
> Thanks for this patch, we tested on our i.MX51 board with Ubuntu. It works 
> fine.
> 
> Wolfram, you can pick up this, too. -;)

Dave has already applied this patch to his net-next tree.

baruch

> On 07/12/2010 03:12 PM, Baruch Siach wrote:
> > With the move to phylib (commit e6b043d) I was seeing sporadic "MDIO write
> > timeout" messages. Measure of the actual time spent showed latency times of
> > more than 1600us.
> > 
> > This patch uses the MII event indication of the FEC hardware to detect
> > completion of MDIO transactions.
> > 
> > Signed-off-by: Baruch Siach <baruch@...s.co.il>
> > ---
> >  drivers/net/fec.c |   55 ++++++++++++++++++++++++----------------------------
> >  1 files changed, 25 insertions(+), 30 deletions(-)
> > 

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