From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D5E0BA0547; Mon, 21 Jun 2021 09:35:37 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4F3EC41168; Mon, 21 Jun 2021 09:35:37 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id C6BAB40040 for <dev@dpdk.org>; Mon, 21 Jun 2021 09:35:35 +0200 (CEST) IronPort-SDR: sl/pWt2bWs5AVwqXJezROSb/zIjPbnijmpwtpanTJphCMkDqm7QOBGQed17H3RoVxt1kAyL/Sw 4ouhHWdsBGHg== X-IronPort-AV: E=McAfee;i="6200,9189,10021"; a="206614861" X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="206614861" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2021 00:35:22 -0700 IronPort-SDR: G1+RHt//B85V+mKmq4vmc2gOaH+q1rxxbDp55wog8nIcC1axriThBPnOMxGmI0YhWaoif9Jgh+ KMCiV0vvVv2Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="453794318" Received: from silpixa00400629.ir.intel.com ([10.237.214.62]) by fmsmga008.fm.intel.com with ESMTP; 21 Jun 2021 00:35:21 -0700 From: "Liguzinski, WojciechX" <wojciechx.liguzinski@intel.com> To: dev@dpdk.org, jasvinder.singh@intel.com, cristian.dumitrescu@intel.com Cc: savinay.dharmappa@intel.com, megha.ajmera@intel.com Date: Mon, 21 Jun 2021 08:35:03 +0100 Message-Id: <20210621073506.96017-1-wojciechx.liguzinski@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210615090200.56824-1-wojciechx.liguzinski@intel.com> References: <20210615090200.56824-1-wojciechx.liguzinski@intel.com> Subject: [dpdk-dev] [RFC PATCH v3 0/3] Add PIE support for HQoS library X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> DPDK sched library is equipped with mechanism that secures it from the bufferbloat problem which is a situation when excess buffers in the network cause high latency and latency variation. Currently, it supports RED for active queue management (which is designed to control the queue length but it does not control latency directly and is now being obsoleted). However, more advanced queue management is required to address this problem and provide desirable quality of service to users. This solution (RFC) proposes usage of new algorithm called "PIE" (Proportional Integral controller Enhanced) that can effectively and directly control queuing latency to address the bufferbloat problem. The implementation of mentioned functionality includes modification of existing and adding a new set of data structures to the library, adding PIE related APIs. This affects structures in public API/ABI. That is why deprecation notice is going to be prepared and sent. Liguzinski, WojciechX (3): sched: add PIE based congestion management example/qos_sched: add PIE support example/ip_pipeline: add PIE support config/rte_config.h | 1 - drivers/net/softnic/rte_eth_softnic_tm.c | 6 +- examples/ip_pipeline/tmgr.c | 6 +- examples/qos_sched/app_thread.c | 1 - examples/qos_sched/cfg_file.c | 82 ++++- examples/qos_sched/init.c | 7 +- examples/qos_sched/profile.cfg | 196 ++++++++---- lib/sched/meson.build | 10 +- lib/sched/rte_pie.c | 78 +++++ lib/sched/rte_pie.h | 388 +++++++++++++++++++++++ lib/sched/rte_sched.c | 229 +++++++++---- lib/sched/rte_sched.h | 53 +++- 12 files changed, 876 insertions(+), 181 deletions(-) create mode 100644 lib/sched/rte_pie.c create mode 100644 lib/sched/rte_pie.h -- 2.17.1