From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next 04/15] i40e: avoid unnecessary register read Date: Mon, 6 Jan 2014 04:30:25 -0800 Message-ID: <1389011436-18424-5-git-send-email-jeffrey.t.kirsher@intel.com> References: <1389011436-18424-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Mitch Williams , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com, Jesse Brandeburg , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga09.intel.com ([134.134.136.24]:44283 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751345AbaAFMak (ORCPT ); Mon, 6 Jan 2014 07:30:40 -0500 In-Reply-To: <1389011436-18424-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Mitch Williams We don't need to read the base VF id. It's already stashed in the HW struct. Change-Id: Ib81e2f76fc40b12c966e014a856b481912cafefc Signed-off-by: Mitch Williams Signed-off-by: Jesse Brandeburg Tested-by: Sibai Li Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 2c042a26..bed6022 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -600,8 +600,7 @@ static int i40e_quiesce_vf_pci(struct i40e_vf *vf) int vf_abs_id, i; u32 reg; - reg = rd32(hw, I40E_PF_VT_PFALLOC); - vf_abs_id = vf->vf_id + (reg & I40E_PF_VT_PFALLOC_FIRSTVF_MASK); + vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; wr32(hw, I40E_PF_PCI_CIAA, VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); -- 1.8.3.1