ixgbe: Fix link issues caused by a reset while interface is down
authorEmil Tantilov <emil.s.tantilov@intel.com>
Wed, 19 Oct 2011 07:41:58 +0000 (07:41 +0000)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Wed, 2 Nov 2011 23:55:15 +0000 (16:55 -0700)
commit232ef6bc451de2bc17c22fd116838cd89b94e1c1
tree88fe56de1620255842b800431544e54c8c15cf6c
parentd5a0e3640c05b7d07c548f9f8f986dbb87cfad98
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>
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c