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Commit 26d7178f authored by Shannon Nelson's avatar Shannon Nelson Committed by Jeff Kirsher
Browse files

i40e: clear AQ head and tail registers 



During admin queue shutdown clear some more registers
explicitly.

Change-Id: Ifb235c691e1c55e76bf66e0642207f464153d05a
Signed-off-by: default avatarShannon Nelson <shannon.nelson@intel.com>
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: default avatarKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 5807822f

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

+14 −4
Original line number Diff line number Diff line
@@ -466,10 +466,15 @@ static i40e_status i40e_shutdown_asq(struct i40e_hw *hw) 
		return I40E_ERR_NOT_READY;



	/* Stop firmware AdminQ processing */

	if (hw->mac.type == I40E_MAC_VF)

	if (hw->mac.type == I40E_MAC_VF) {

		wr32(hw, I40E_VF_ATQLEN1, 0);

	else

		wr32(hw, I40E_VF_ATQH1, 0);

		wr32(hw, I40E_VF_ATQT1, 0);

	} else {

		wr32(hw, I40E_PF_ATQLEN, 0);

		wr32(hw, I40E_PF_ATQH, 0);

		wr32(hw, I40E_PF_ATQT, 0);

	}



	/* make sure lock is available */

	mutex_lock(&hw->aq.asq_mutex);
@@ -500,10 +505,15 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw) 
		return I40E_ERR_NOT_READY;



	/* Stop firmware AdminQ processing */

	if (hw->mac.type == I40E_MAC_VF)

	if (hw->mac.type == I40E_MAC_VF) {

		wr32(hw, I40E_VF_ARQLEN1, 0);

	else

		wr32(hw, I40E_VF_ARQH1, 0);

		wr32(hw, I40E_VF_ARQT1, 0);

	} else {

		wr32(hw, I40E_PF_ARQLEN, 0);

		wr32(hw, I40E_PF_ARQH, 0);

		wr32(hw, I40E_PF_ARQT, 0);

	}



	/* make sure lock is available */

	mutex_lock(&hw->aq.arq_mutex);