netdev - Re: [net-2.6 PATCH] ixgbe: Fix 82599 multispeed fiber link issues due to Tx laser flapping

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Date:	Thu, 18 Mar 2010 22:14:36 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com,
	mallikarjuna.chilakala@...el.com
Subject: Re: [net-2.6 PATCH] ixgbe: Fix 82599 multispeed fiber link issues
 due to Tx laser flapping

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Thu, 18 Mar 2010 17:34:52 -0700

> From: Mallikarjuna R Chilakala <mallikarjuna.chilakala@...el.com>
> 
> Fix 82599 link issues during driver load and unload test using multi-speed
> 10G & 1G fiber modules. When connected back to back sometime 82599 multispeed
> fiber modules would link at 1G speed instead of 10G highest speed, due to a
> race condition in autotry process involving Tx laser flapping. Move autotry
> autoneg-37 tx laser flapping process from multispeed module init setup
> to driver unload. This will alert the link partner to restart its
> autotry process when it tries to establish the link with the link partner
> 
> Signed-off-by:  Mallikarjuna R Chilakala <mallikarjuna.chilakala@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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