From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Wed, 19 Oct 2011 07:41:58 +0000 (+0000)
Subject: ixgbe: Fix link issues caused by a reset while interface is down
X-Git-Tag: v3.2-rc1~68^2~4^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=232ef6bc451de2bc17c22fd116838cd89b94e1c1;p=pandora-kernel.git

ixgbe: Fix link issues caused by a reset while interface is down

Interface fails to obtain link on 82599 SFP in the following scenario:

1. Set advertised speed to GB:
ethtool -s eth0 advertise 0x20

2. Bring interface down
ip link set eth0 down

3. Issue any command that leads to a reset:
ethtool -t eth0

4. Bring link back up:
ip link set eth0 up

Following patch makes sure that the driver flaps the Tx laser every time
ixgbe_start_hw() is called, and not only when the speed is set.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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