From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 81295A0C41; Tue, 7 Sep 2021 09:33:42 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 45B18410ED; Tue, 7 Sep 2021 09:33:42 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by mails.dpdk.org (Postfix) with ESMTP id 795FF410EC for ; Tue, 7 Sep 2021 09:33:40 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10099"; a="216965117" X-IronPort-AV: E=Sophos;i="5.85,274,1624345200"; d="scan'208";a="216965117" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2021 00:33:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,274,1624345200"; d="scan'208";a="692338859" Received: from silpixa00400629.ir.intel.com ([10.237.213.30]) by fmsmga006.fm.intel.com with ESMTP; 07 Sep 2021 00:33:38 -0700 From: "Liguzinski, WojciechX" To: dev@dpdk.org, jasvinder.singh@intel.com, cristian.dumitrescu@intel.com Cc: megha.ajmera@intel.com Date: Tue, 7 Sep 2021 07:33:23 +0000 Message-Id: <20210907073328.1498973-1-wojciechx.liguzinski@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210705080421.18736-1-wojciechx.liguzinski@intel.com> References: <20210705080421.18736-1-wojciechx.liguzinski@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [RFC PATCH v5 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 (3): 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 | 1076 ++++++++++++++++++ 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, 2061 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 -- 2.25.1