From patchwork Thu Mar 5 16:46:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 446787 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 4E370140146 for ; Fri, 6 Mar 2015 03:47:34 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964822AbbCEQrX (ORCPT ); Thu, 5 Mar 2015 11:47:23 -0500 Received: from mga01.intel.com ([192.55.52.88]:41895 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757766AbbCEQqw (ORCPT ); Thu, 5 Mar 2015 11:46:52 -0500 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 05 Mar 2015 08:46:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,348,1422950400"; d="scan'208";a="687435529" Received: from dttran-mobl.amr.corp.intel.com (HELO jtkirshe-mobl.amr.corp.intel.com) ([10.254.99.184]) by fmsmga002.fm.intel.com with ESMTP; 05 Mar 2015 08:46:34 -0800 From: Jeff Kirsher To: davem@davemloft.net Cc: Greg Rose , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, jogreene@redhat.com, Jeff Kirsher Subject: [net-next 01/14] i40e: Fix NPAR Tx Scheduler init Date: Thu, 5 Mar 2015 08:46:19 -0800 Message-Id: <1425573992-30955-2-git-send-email-jeffrey.t.kirsher@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1425573992-30955-1-git-send-email-jeffrey.t.kirsher@intel.com> References: <1425573992-30955-1-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: Greg Rose Recent changes to the driver initialization have caused the BW configurations to not take effect. We use a BW configuration read and write back to "kick" the Tx scheduler into action. Change-ID: I94ab377c58d3a3986e3de62b6c199be3fd2ee5e6 Signed-off-by: Greg Rose Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 56bdaff..620dd23 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -7576,6 +7576,10 @@ static int i40e_sw_init(struct i40e_pf *pf) mutex_init(&pf->switch_mutex); + /* If NPAR is enabled nudge the Tx scheduler */ + if (pf->hw.func_caps.npar_enable && (!i40e_get_npar_bw_setting(pf))) + i40e_set_npar_bw_setting(pf); + sw_init_done: return err; }