netdev - Re: [net-2.6 PATCH 2/3] ixgbe: disable tx engine before disabling tx laser

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Message-Id: <20100629.231513.176662990.davem@davemloft.net>
Date:	Tue, 29 Jun 2010 23:15:13 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com,
	john.r.fastabend@...el.com, peter.p.waskiewicz.jr@...el.com
Subject: Re: [net-2.6 PATCH 2/3] ixgbe: disable tx engine before disabling
 tx laser

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Tue, 29 Jun 2010 21:28:36 -0700

> From: John Fastabend <john.r.fastabend@...el.com>
> 
> Disabling the tx laser while receiving DMA requests
> can hang the device.  After this occurs the device
> is in a bad state. The GPIO bit never clears when
> PCI master access is disabled and a reboot is required
> to get the device in a good state again.
> 
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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