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authorMark Rustad <mark.d.rustad@intel.com>2014-01-15 06:53:11 +0400
committerDavid S. Miller <davem@davemloft.net>2014-01-15 06:59:17 +0400
commit09f40aeddd77ad07093516b267ae7b4aebcc57bb (patch)
treea3e170fa31c9397af6a228f26ee25c6bd09caccf /drivers
parente1f7dedceb6b540f53a5dbe4730abcbbdb04efd5 (diff)
downloadlinux-09f40aeddd77ad07093516b267ae7b4aebcc57bb.tar.xz
ixgbe: Indicate removal state explicitly
Add a bit, __IXGBE_REMOVING, to indicate that the module is being removed. The __IXGBE_DOWN bit had been overloaded for this purpose, but that leads to trouble. A few places now check both __IXGBE_DOWN and __IXGBE_REMOVE. Notably, setting either bit will prevent service task execution. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h1
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c12
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 49531cd18987..19d27749212e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -798,6 +798,7 @@ enum ixgbe_state_t {
__IXGBE_TESTING,
__IXGBE_RESETTING,
__IXGBE_DOWN,
+ __IXGBE_REMOVING,
__IXGBE_SERVICE_SCHED,
__IXGBE_IN_SFP_INIT,
__IXGBE_PTP_RUNNING,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 5bcc870f8367..bf7d177b9579 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -278,6 +278,7 @@ static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter,
static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter)
{
if (!test_bit(__IXGBE_DOWN, &adapter->state) &&
+ !test_bit(__IXGBE_REMOVING, &adapter->state) &&
!test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state))
schedule_work(&adapter->service_task);
}
@@ -5874,8 +5875,9 @@ static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter)
u64 eics = 0;
int i;
- /* If we're down or resetting, just bail */
+ /* If we're down, removing or resetting, just bail */
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
+ test_bit(__IXGBE_REMOVING, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return;
@@ -6122,8 +6124,9 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
**/
static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter)
{
- /* if interface is down do nothing */
+ /* if interface is down, removing or resetting, do nothing */
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
+ test_bit(__IXGBE_REMOVING, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return;
@@ -6341,8 +6344,9 @@ static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED;
- /* If we're already down or resetting, just bail */
+ /* If we're already down, removing or resetting, just bail */
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
+ test_bit(__IXGBE_REMOVING, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return;
@@ -8210,7 +8214,7 @@ static void ixgbe_remove(struct pci_dev *pdev)
ixgbe_dbg_adapter_exit(adapter);
- set_bit(__IXGBE_DOWN, &adapter->state);
+ set_bit(__IXGBE_REMOVING, &adapter->state);
cancel_work_sync(&adapter->service_task);