From patchwork Tue Jul 1 11:34:59 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 366066 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B99841400F1 for ; Tue, 1 Jul 2014 21:35:22 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757805AbaGALfR (ORCPT ); Tue, 1 Jul 2014 07:35:17 -0400 Received: from mga02.intel.com ([134.134.136.20]:7330 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756629AbaGALfP (ORCPT ); Tue, 1 Jul 2014 07:35:15 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 01 Jul 2014 04:35:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,581,1400050800"; d="scan'208";a="537091329" Received: from unknown (HELO jtkirshe-mobl.amr.corp.intel.com) ([10.255.12.189]) by orsmga001.jf.intel.com with ESMTP; 01 Jul 2014 04:35:13 -0700 From: Jeff Kirsher To: davem@davemloft.net Cc: Shannon Nelson , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com, Jeff Kirsher Subject: [net-next 02/14] i40e/i40evf: clear aq bah-bal on shutdown Date: Tue, 1 Jul 2014 04:34:59 -0700 Message-Id: <1404214511-26868-3-git-send-email-jeffrey.t.kirsher@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1404214511-26868-1-git-send-email-jeffrey.t.kirsher@intel.com> References: <1404214511-26868-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Shannon Nelson 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 Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_adminq.c | 4 ++++ drivers/net/ethernet/intel/i40evf/i40e_adminq.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c index 87f1d8b..a8244a5 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c +++ b/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); diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c index 79a30dd..c277763 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c +++ b/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);