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i40e/i40evf: clear aq bah-bal on shutdown 

Clear the AQ BAH and BAL registers on a clean shutdown to help make sure
all is tidy when the driver is done.

Change-ID: I393e92680247daa52a8e00bab183213672d73578
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Shannon Nelson 2014-06-04 20:41:22 +00:00 committed by Jeff Kirsher
parent 87dc346433
commit 4346940b96
2 changed files with 8 additions and 0 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_adminq.c
View File

@ -489,6 +489,8 @@ static i40e_status i40e_shutdown_asq(struct i40e_hw *hw)
wr32(hw, hw->aq.asq.head, 0);
wr32(hw, hw->aq.asq.tail, 0);
wr32(hw, hw->aq.asq.len, 0);
wr32(hw, hw->aq.asq.bal, 0);
wr32(hw, hw->aq.asq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.asq_mutex);
@ -520,6 +522,8 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw)
wr32(hw, hw->aq.arq.head, 0);
wr32(hw, hw->aq.arq.tail, 0);
wr32(hw, hw->aq.arq.len, 0);
wr32(hw, hw->aq.arq.bal, 0);
wr32(hw, hw->aq.arq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.arq_mutex);

4
drivers/net/ethernet/intel/i40evf/i40e_adminq.c
View File

@ -487,6 +487,8 @@ static i40e_status i40e_shutdown_asq(struct i40e_hw *hw)
wr32(hw, hw->aq.asq.head, 0);
wr32(hw, hw->aq.asq.tail, 0);
wr32(hw, hw->aq.asq.len, 0);
wr32(hw, hw->aq.asq.bal, 0);
wr32(hw, hw->aq.asq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.asq_mutex);
@ -518,6 +520,8 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw)
wr32(hw, hw->aq.arq.head, 0);
wr32(hw, hw->aq.arq.tail, 0);
wr32(hw, hw->aq.arq.len, 0);
wr32(hw, hw->aq.arq.bal, 0);
wr32(hw, hw->aq.arq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.arq_mutex);