From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72E18C43A1D for ; Thu, 12 Jul 2018 11:57:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35D50213A2 for ; Thu, 12 Jul 2018 11:57:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 35D50213A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726946AbeGLMD4 (ORCPT ); Thu, 12 Jul 2018 08:03:56 -0400 Received: from mail.bootlin.com ([62.4.15.54]:57950 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726650AbeGLMD4 (ORCPT ); Thu, 12 Jul 2018 08:03:56 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 030AE20731; Thu, 12 Jul 2018 13:54:42 +0200 (CEST) Received: from mc-bl-xps13.lan (AAubervilliers-681-1-12-56.w90-88.abo.wanadoo.fr [90.88.133.56]) by mail.bootlin.com (Postfix) with ESMTPSA id AA061206A6; Thu, 12 Jul 2018 13:54:41 +0200 (CEST) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Antoine Tenart , thomas.petazzoni@bootlin.com, gregory.clement@bootlin.com, miquel.raynal@bootlin.com, nadavh@marvell.com, stefanc@marvell.com, ymarkman@marvell.com, mw@semihalf.com Subject: [PATCH net-next 00/18] net: mvpp2: add RSS support Date: Thu, 12 Jul 2018 13:54:09 +0200 Message-Id: <20180712115427.27375-1-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds support for RSS on PPv2. There already was some code to handle the RSS tables, but the driver was missing all the classification steps required to actually use these tables. RSS is used through the classifier, using at least 2 lookups : - One using the C2 engine, a TCAM engine that match the packet based on some header extracted fields, assigns the default rx queue for that packet and tag it for RSS - One using the C3Hx engine, which computes the hash that's used to perform the lookup in the RSS table. Since RSS spreads the load across CPUs, we need to make sure that packets from the same flow are always assigned the same rx queue, to prevent re-ordering. This series therefore adds a classification step based on the Header Parser, that separate ingress traffic into 52 flows, based on some L2, L3 and L4 parameters. Patches 1 and 2 fix some header issues, from the driver splitting Patches 3 to 7 make sure the correct receive queue setup is used for RSS Patches 8 to 14 deal with the way we handle the RSS tables Patch 15 implement basic classifier configuration, by using it to assign the default receive queue Patch 16 implement the ingress traffic splitting into multiple flows Patch 17 adds RSS support, by using the needed classification steps Patch 18 adds the required ethtool ops to configure the flow hash parameters This was tested on MacchiatoBin, giving some nice performance improvements using ip forwarding (going from 5Gbps to 9.6Gbps total throughput). RSS is disabled by default. Antoine Tenart (3): net: mvpp2: fix a typo in the RSS code net: mvpp2: RSS indirection table support net: mvpp2: improve the distribution of packets on CPUs when using RSS Maxime Chevallier (14): net: mvpp2: fix include guards in mvpp2_prs.h net: mvpp2: define the number of RSS entries per table in mvpp2.h net: mvpp2: make sure we use single queue mode on PPv2.1 net: mvpp2: make multi queue mode the default mode net: mvpp2: fix hardcoded number of rx queues net: mvpp2: use only one rx queue per port per CPU net: mvpp2: fix RSS register definitions net: mvpp2: use one RSS table per port net: mvpp2: make sure we don't spread load on disabled CPUs net: mvpp2: rename per-port RSS init function net: mvpp2: use classifier to assign default rx queue net: mvpp2: split ingress traffic into multiple flows net: mvpp2: add an RSS classification step for each flow net: mvpp2: allow setting RSS flow hash parameters with ethtool Yan Markman (1): net: mvpp2: use RSS only when using multi-queue mode drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 52 +- drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c | 929 +++++++++++++++++++++++- drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h | 177 ++++- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 127 +++- drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c | 35 + drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h | 18 +- 6 files changed, 1307 insertions(+), 31 deletions(-) -- 2.11.0