From patchwork Mon Oct 11 07:55:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liguzinski, WojciechX" X-Patchwork-Id: 100981 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0123BA034F; Mon, 11 Oct 2021 09:55:59 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7F1E340E0F; Mon, 11 Oct 2021 09:55:59 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id 01D2C40142 for ; Mon, 11 Oct 2021 09:55:57 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10133"; a="207626856" X-IronPort-AV: E=Sophos;i="5.85,364,1624345200"; d="scan'208";a="207626856" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2021 00:55:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,364,1624345200"; d="scan'208";a="441341298" Received: from silpixa00400629.ir.intel.com ([10.237.213.30]) by orsmga003.jf.intel.com with ESMTP; 11 Oct 2021 00:55:44 -0700 From: "Liguzinski, WojciechX" To: dev@dpdk.org, jasvinder.singh@intel.com, cristian.dumitrescu@intel.com Cc: megha.ajmera@intel.com Date: Mon, 11 Oct 2021 07:55:36 +0000 Message-Id: <20211011075541.1182775-1-wojciechx.liguzinski@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210923094533.939757-1-wojciechx.liguzinski@intel.com> References: <20210923094533.939757-1-wojciechx.liguzinski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v9 0/5] 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 (5): sched: add PIE based congestion management example/qos_sched: add PIE support example/ip_pipeline: add PIE support doc/guides/prog_guide: added PIE app/test: add tests for PIE app/test/autotest_data.py | 18 + app/test/meson.build | 4 + app/test/test_pie.c | 1065 ++++++++++++++++++ config/rte_config.h | 1 - doc/guides/prog_guide/glossary.rst | 3 + doc/guides/prog_guide/qos_framework.rst | 60 +- doc/guides/prog_guide/traffic_management.rst | 13 +- 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 | 86 ++ lib/sched/rte_pie.h | 398 +++++++ lib/sched/rte_sched.c | 228 ++-- lib/sched/rte_sched.h | 53 +- lib/sched/version.map | 3 + 19 files changed, 2050 insertions(+), 190 deletions(-) create mode 100644 app/test/test_pie.c create mode 100644 lib/sched/rte_pie.c create mode 100644 lib/sched/rte_pie.h