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ixgbe: prevent link checks while resetting 

It some situations the driver sets __IXGBE_RESETTING and then
__IXGBE_DOWN flags. It is possible a link check may sneak in
between.

This patch adds check for both flags.
The idea is to reduce register reads while the PHY is resetting.

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>
This commit is contained in:
Emil Tantilov 2011-08-27 07:18:37 +00:00 committed by Jeff Kirsher
parent 8ce9d6c725
commit 7edebf9a6a
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -5978,7 +5978,8 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter)
{ {
/* if interface is down do nothing */ /* if interface is down do nothing */
if (test_bit(__IXGBE_DOWN, &adapter->state)) if (test_bit(__IXGBE_DOWN, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return; return;
ixgbe_watchdog_update_link(adapter); ixgbe_watchdog_update_link(adapter);