netdev - Re: [PATCH] sky2: enable rx/tx in sky2_phy

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Message-ID: <20100712084854.7e4f2e4d@nehalam>
Date:	Mon, 12 Jul 2010 08:48:54 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Brandon Philips <brandon@...p.org>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	Mike McCormack <mikem@...g3k.org>
Subject: Re: [PATCH] sky2: enable rx/tx in sky2_phy_reinit()

On Mon, 12 Jul 2010 04:04:10 -0700
Brandon Philips <brandon@...p.org> wrote:

> On 10:00 Wed 23 Jun 2010, Brandon Philips wrote:
> > While testing this I just noticed that if I turn off speed autoneg the
> > interface stops sending packets until I turn off pause autoneg too.
> > 
> > To illustrate start pinging some machine and run this:
> > 
> >  $ ethtool --change eth0 speed 100 duplex full autoneg off
> >  # At this point the ping stops
> > 
> >  $ ethtool -A eth0 autoneg off
> >  # Ping starts up again
> > 
> > When I tried capturing packets nothing was coming from the device.
> > 
> > 0ea065e52eb6a0f029b5fa5ed2f142be1b66a153 implemeneted the behaviour of
> > having seperate pause and speed ethtool controls for sky2. Reverting
> > this (see quick ugly revert below) obviously fixes the issue.
> > 
> > Any ideas on how to fix this in a proper way though?

No quick ideas; try doing walkthrough with debugging to see what PHY
interrupt status is.
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