netdev - RE: SMSC 8720a/MDIO/PHY help.

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Message-ID: <9AC3F0E75060224C8BBC5BA2DDC8853A1FA8E8D4@EXV1.corp.adtran.com>
Date:	Wed, 13 Apr 2011 16:38:40 -0500
From:	ANDY KENNEDY <ANDY.KENNEDY@...ran.com>
To:	<michael@...sch.at>, <netdev@...r.kernel.org>
Subject: RE: SMSC 8720a/MDIO/PHY help.

> -----Original Message-----
> From: Michael Riesch [mailto:michael@...sch.at]
> Sent: Wednesday, April 13, 2011 4:19 PM
> To: netdev@...r.kernel.org
> Cc: ANDY KENNEDY
> Subject: Re: SMSC 8720a/MDIO/PHY help.
> 
> 
> > If you have an idea of something for me to try, I'd love to
> entertain
> > it.
> 
> I am rather new to PHYLIB, but these are my ideas:
> 
>  1) make sure phy_connect is executed (AFIAK called by MDIO bus
> driver)

Going through the phy.txt doc under Documentation/networking:
PHY Abstraction Layer
(Updated 2008-04-08)
though it may be a bit out-of-date, I did see what you are talking about.  What I'm hung up on at the moment is the behavior of adjust_link().  It appears that I only need to start the queues, though I don’t know.

> 
>  2) maybe you need to call phy_start / phy_stop (AFAIK from the PHY
> driver's open / close function)

Currently, when I do this I only get the call to adjust_link() over and over again.

> 
> HTH,
> Michael

Thanks for the help!

Andy