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: NShannon Nelson <shannon.nelson@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_adminq.c

@@ -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);

drivers/net/ethernet/intel/i40evf/i40e_adminq.c

@@ -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);