From patchwork Mon Jun 22 13:21:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Magnus Karlsson X-Patchwork-Id: 1314368 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 49r96Q1m7Lz9sDX for ; Mon, 22 Jun 2020 23:21:34 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728255AbgFVNVc (ORCPT ); Mon, 22 Jun 2020 09:21:32 -0400 Received: from mga09.intel.com ([134.134.136.24]:27253 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728100AbgFVNVc (ORCPT ); Mon, 22 Jun 2020 09:21:32 -0400 IronPort-SDR: m+54dLw1hTXgT5gdCfb8CRxDrLQnw+fo6KaUdTFas1f0Hfnrux8+KPa2g3WAin1cEqFpEA7oXi SXSEpC+si9Sg== X-IronPort-AV: E=McAfee;i="6000,8403,9659"; a="145265627" X-IronPort-AV: E=Sophos;i="5.75,266,1589266800"; d="scan'208";a="145265627" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2020 06:21:31 -0700 IronPort-SDR: +faZkv575xRaTaIYiSbzI2FbIhmWuiugNq5gCXMwHgI3vfq2nuDqe05sLrJTuCIzybd0n32mtM SSS6Xy/451Pw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,266,1589266800"; d="scan'208";a="422628508" Received: from juergenr-mobl.ger.corp.intel.com (HELO localhost.localdomain) ([10.252.33.83]) by orsmga004.jf.intel.com with ESMTP; 22 Jun 2020 06:21:29 -0700 From: Magnus Karlsson To: magnus.karlsson@intel.com, bjorn.topel@intel.com, intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com Cc: maciej.fijalkowski@intel.com, maciejromanfijalkowski@gmail.com, netdev@vger.kernel.org Subject: [PATCH net-next 0/2] i40e: improve AF_XDP performance Date: Mon, 22 Jun 2020 15:21:21 +0200 Message-Id: <1592832083-23249-1-git-send-email-magnus.karlsson@intel.com> X-Mailer: git-send-email 2.7.4 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This small series improves AF_XDP performance for the i40e NIC. The first patch optimizes the Tx completion path for AF_XDP and the second one removes a division in the data path for the normal SKB path, XDP as well as AF_XDP. Overall, the throughput of the l2fwd application in xpdsock improves with around 4% on my machine. This patch has been applied against commit 29a720c1042f ("Merge branch 'Marvell-mvpp2-improvements'") Thanks: Magnus Magnus Karlsson (2): i40e: optimize AF_XDP Tx completion path i40e: eliminate division in napi_poll data path drivers/net/ethernet/intel/i40e/i40e_txrx.c | 15 +++++++++---- drivers/net/ethernet/intel/i40e/i40e_txrx.h | 1 + drivers/net/ethernet/intel/i40e/i40e_xsk.c | 34 ++++++++++++++++------------- 3 files changed, 31 insertions(+), 19 deletions(-) --- 2.7.4