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{ "id": 79799, "url": "https://patches.dpdk.org/api/covers/79799/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20201006152733.52178-1-savinay.dharmappa@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20201006152733.52178-1-savinay.dharmappa@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20201006152733.52178-1-savinay.dharmappa@intel.com", "date": "2020-10-06T15:27:25", "name": "[v6,0/8] Enable dynamic config of subport bandwidth", "submitter": { "id": 1535, "url": "https://patches.dpdk.org/api/people/1535/?format=api", "name": "Savinay Dharmappa", "email": "savinay.dharmappa@intel.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20201006152733.52178-1-savinay.dharmappa@intel.com/mbox/", "series": [ { "id": 12722, "url": "https://patches.dpdk.org/api/series/12722/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=12722", "date": "2020-10-06T15:27:26", "name": "Enable dynamic config of subport bandwidth", "version": 6, "mbox": "https://patches.dpdk.org/series/12722/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/79799/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id E5382A04BB;\n\tTue, 6 Oct 2020 17:40:08 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 7E1E91BA5D;\n\tTue, 6 Oct 2020 17:39:54 +0200 (CEST)", "from mga18.intel.com (mga18.intel.com [134.134.136.126])\n by dpdk.org (Postfix) with ESMTP id 4FF471B9E0\n for <dev@dpdk.org>; Tue, 6 Oct 2020 17:39:48 +0200 (CEST)", "from orsmga004.jf.intel.com ([10.7.209.38])\n by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 06 Oct 2020 08:27:45 -0700", "from silpixa00400629.ir.intel.com ([10.237.214.112])\n by orsmga004.jf.intel.com with ESMTP; 06 Oct 2020 08:27:44 -0700" ], "IronPort-SDR": [ "\n w7qwfz5P6N92uUz1yrR6ao4LCRbGT7YEGtX0SfY9vj7FhXAXWDYIrZdDsKtReiLwF5KWdj2KDB\n YIQWXBaM5NTQ==", "\n xFY2TmcI6rW4fNBgU7mnIUArawOVSTsNAwjlPIUdycvn0vkL4UBwkp4yM6elQL7D0c0Hpy/LqM\n JdGCCrXj7lUA==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6000,8403,9765\"; a=\"152306142\"", "E=Sophos;i=\"5.77,343,1596524400\"; d=\"scan'208\";a=\"152306142\"", "E=Sophos;i=\"5.77,343,1596524400\"; d=\"scan'208\";a=\"460844455\"" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "From": "Savinay Dharmappa <savinay.dharmappa@intel.com>", "To": "cristian.dumitrescu@intel.com,\n\tjasvinder.singh@intel.com,\n\tdev@dpdk.org", "Cc": "savinay.dharmappa@intel.com", "Date": "Tue, 6 Oct 2020 16:27:25 +0100", "Message-Id": "<20201006152733.52178-1-savinay.dharmappa@intel.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20200930192434.47793-1-savinay.dharmappa@intel.com>", "References": "<20200930192434.47793-1-savinay.dharmappa@intel.com>", "Subject": "[dpdk-dev] [PATCH v6 0/8] Enable dynamic config of subport bandwidth", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <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>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "DPDK sched library allows runtime configuration of the pipe profiles to the\npipes of the subport once scheduler hierarchy is constructed. However, to\nchange the subport level bandwidth, existing hierarchy needs to be\ndismantled and whole process of building hierarchy under subport nodes\nneeds to be repeated which might result in router downtime. Furthermore,\ndue to lack of dynamic configuration of the subport bandwidth profile\nconfiguration (shaper and Traffic class rates), the user application\nis unable to dynamically re-distribute the excess-bandwidth of one subport\namong other subports in the scheduler hierarchy. Therefore, it is also not\npossible to adjust the subport bandwidth profile in sync with dynamic\nchanges in pipe profiles of subscribers who want to consume higher\nbandwidth opportunistically.\n\nThis patch series implements dynamic configuration of the subport bandwidth\nprofile to overcome the runtime situation when group of subscribers are not\nusing the allotted bandwidth and dynamic bandwidth re-distribution is\nneeded the without making any structural changes in the hierarchy.\n\nThe implementation work includes refactoring the existing api and\ndata structures defined for port and subport level, new APIs for\nadding subport level bandwidth profiles that can be used in runtime\n\nSavinay Dharmappa (8):\n sched: add support profile table\n sched: introduce subport profile add function\n sched: update subport rate dynamically\n example/qos_sched: update subport rate dynamically\n example/ip_pipeline: update subport rate dynamically\n drivers/softnic: update subport rate dynamically\n app/test_sched: update subport rate dynamically\n sched: remove redundant code\n\n app/test/test_sched.c | 15 +-\n doc/guides/rel_notes/deprecation.rst | 6 -\n doc/guides/rel_notes/release_20_11.rst | 2 +\n .../net/softnic/rte_eth_softnic_internals.h | 11 +-\n drivers/net/softnic/rte_eth_softnic_tm.c | 243 +++++--\n examples/ip_pipeline/cli.c | 68 +-\n examples/ip_pipeline/tmgr.c | 121 +++-\n examples/ip_pipeline/tmgr.h | 5 +-\n examples/qos_sched/cfg_file.c | 151 ++--\n examples/qos_sched/cfg_file.h | 4 +\n examples/qos_sched/init.c | 21 +-\n examples/qos_sched/main.h | 1 +\n examples/qos_sched/profile.cfg | 3 +\n lib/librte_sched/rte_sched.c | 678 ++++++++++++------\n lib/librte_sched/rte_sched.h | 73 +-\n lib/librte_sched/rte_sched_version.map | 2 +\n 16 files changed, 959 insertions(+), 445 deletions(-)" }