From patchwork Wed Jul 22 21:31:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 1334194 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BBpZW5BB9z9sR4 for ; Thu, 23 Jul 2020 07:32:03 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733010AbgGVVcC (ORCPT ); Wed, 22 Jul 2020 17:32:02 -0400 Received: from mga18.intel.com ([134.134.136.126]:4536 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726452AbgGVVcB (ORCPT ); Wed, 22 Jul 2020 17:32:01 -0400 IronPort-SDR: TtonXkqq7LUUIVwCtzSxxZPx5RfFHiuoGW24Nif9PLXlWJXsaXcL2T07oRMMoGsXtZ+YGA1Ccj mAvSJcRak3qw== X-IronPort-AV: E=McAfee;i="6000,8403,9690"; a="137926755" X-IronPort-AV: E=Sophos;i="5.75,383,1589266800"; d="scan'208";a="137926755" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jul 2020 14:32:00 -0700 IronPort-SDR: DGV/iFIhk/bnBhhop5j4OM4IxjjT5lwNB30u4mFjb2By6Mh3SkNkjWgSW5gLDw1+8KGZxgz36L tBeD3/IaIlew== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,383,1589266800"; d="scan'208";a="284361349" Received: from jtkirshe-desk1.jf.intel.com ([134.134.177.86]) by orsmga003.jf.intel.com with ESMTP; 22 Jul 2020 14:31:59 -0700 From: Tony Nguyen To: davem@davemloft.net Cc: Sasha Neftin , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, jeffrey.t.kirsher@intel.com, anthony.l.nguyen@intel.com, Aaron Brown Subject: [net-next 2/8] igc: Add Receive Descriptor Minimum Threshold Count Date: Wed, 22 Jul 2020 14:31:44 -0700 Message-Id: <20200722213150.383393-3-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200722213150.383393-1-anthony.l.nguyen@intel.com> References: <20200722213150.383393-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Sasha Neftin This register counts the number of events where the number of descriptors in one of the Rx queues was lower than the threshold defined for this queue. Signed-off-by: Sasha Neftin Tested-by: Aaron Brown Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/igc/igc_mac.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/igc/igc_mac.c b/drivers/net/ethernet/intel/igc/igc_mac.c index 2d9ca3e1bdde..3a618e69514e 100644 --- a/drivers/net/ethernet/intel/igc/igc_mac.c +++ b/drivers/net/ethernet/intel/igc/igc_mac.c @@ -308,6 +308,7 @@ void igc_clear_hw_cntrs_base(struct igc_hw *hw) rd32(IGC_TLPIC); rd32(IGC_RLPIC); rd32(IGC_HGPTC); + rd32(IGC_RXDMTC); rd32(IGC_HGORCL); rd32(IGC_HGORCH); rd32(IGC_HGOTCL);