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{ "id": 914, "url": "http://patchwork.dpdk.org/api/covers/914/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/20240506082721.120666-1-mattias.ronnblom@ericsson.com/", "project": { "id": 1, "url": "http://patchwork.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": "<20240506082721.120666-1-mattias.ronnblom@ericsson.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20240506082721.120666-1-mattias.ronnblom@ericsson.com", "date": "2024-05-06T08:27:15", "name": "[RFC,v6,0/6] Lcore variables", "submitter": { "id": 1077, "url": "http://patchwork.dpdk.org/api/people/1077/?format=api", "name": "Mattias Rönnblom", "email": "mattias.ronnblom@ericsson.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/20240506082721.120666-1-mattias.ronnblom@ericsson.com/mbox/", "series": [ { "id": 31884, "url": "http://patchwork.dpdk.org/api/series/31884/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=31884", "date": "2024-05-06T08:27:15", "name": "Lcore variables", "version": 6, "mbox": "http://patchwork.dpdk.org/series/31884/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/914/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "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])\n\tby inbox.dpdk.org (Postfix) with ESMTP id D4B4743FC4;\n\tMon, 6 May 2024 10:38:23 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 53417402B9;\n\tMon, 6 May 2024 10:38:23 +0200 (CEST)", "from EUR04-VI1-obe.outbound.protection.outlook.com\n (mail-vi1eur04on2075.outbound.protection.outlook.com [40.107.8.75])\n by mails.dpdk.org (Postfix) with ESMTP id 4EB8240270\n for <dev@dpdk.org>; Mon, 6 May 2024 10:38:22 +0200 (CEST)", "from AM0P190CA0023.EURP190.PROD.OUTLOOK.COM (2603:10a6:208:190::33)\n by DB8PR07MB6410.eurprd07.prod.outlook.com (2603:10a6:10:13b::13)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7544.41; Mon, 6 May\n 2024 08:38:21 +0000", "from AMS0EPF000001AD.eurprd05.prod.outlook.com\n (2603:10a6:208:190:cafe::c3) by AM0P190CA0023.outlook.office365.com\n (2603:10a6:208:190::33) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7544.39 via Frontend\n Transport; Mon, 6 May 2024 08:38:20 +0000", "from oa.msg.ericsson.com (192.176.1.74) by\n AMS0EPF000001AD.mail.protection.outlook.com (10.167.16.153) with Microsoft\n SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.20.7544.18 via Frontend Transport; Mon, 6 May 2024 08:38:20 +0000", "from seliicinfr00050.seli.gic.ericsson.se (153.88.142.248) by\n smtp-central.internal.ericsson.com (100.87.178.64) with Microsoft SMTP Server\n id 15.2.1544.9; Mon, 6 May 2024 10:38:20 +0200", "from breslau.. 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helo=oa.msg.ericsson.com; pr=C", "From": "=?utf-8?q?Mattias_R=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>", "To": "<dev@dpdk.org>", "CC": "<hofors@lysator.liu.se>,\n =?utf-8?q?Morten_Br=C3=B8rup?= <mb@smartsharesystems.com>,\n Stephen Hemminger <stephen@networkplumber.org>,\n Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>, =?utf-8?q?Mattias_R?=\n\t=?utf-8?q?=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>", "Subject": "[RFC v6 0/6] Lcore variables", "Date": "Mon, 6 May 2024 10:27:15 +0200", "Message-ID": "<20240506082721.120666-1-mattias.ronnblom@ericsson.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20240228100928.524277-2-mattias.ronnblom@ericsson.com>", "References": "<20240228100928.524277-2-mattias.ronnblom@ericsson.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "AMS0EPF000001AD:EE_|DB8PR07MB6410:EE_", "X-MS-Office365-Filtering-Correlation-Id": "f63da6bc-c4da-4afa-2da7-08dc6da7e2a6", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230031|82310400017|36860700004|1800799015|376005;", "X-Microsoft-Antispam-Message-Info": "=?utf-8?q?VoCbhDMqyWmTHEBgeWQ7z04AnCbbBmH?=\n\t=?utf-8?q?LDOy64s21Z1WuTCBsgXOGxYh8l7MJGO8OkpFmvVw8ZQoSUFC0zqDhbusXCXSAIYQO?=\n\t=?utf-8?q?i9zvzVcO/e++ZlRDYT0THVLlyCYsjz/qMLphutUfza3vV6L+GOguIq1ISa+dyph2B?=\n\t=?utf-8?q?oy7I/ZDVKaFUoW24Dkn/V7zQWGctKfaSPWB365SKSzomrRr60r9Vh5sAd5NRWGLlv?=\n\t=?utf-8?q?s4xHRsZ8a+CLdB8l54OF9/gwIBe/x4N3TwViAGIM8hMs89TUilvTX0QdyT+xlnGSq?=\n\t=?utf-8?q?8Y3OcT0KGVSlAIXL9GN4sLGpDto/G6dFKTaCdUc0v3qJpbzHwSQ7inekwmFENflW+?=\n\t=?utf-8?q?/0oZVctaGsecDjmjz1touyuNZoEsJyqj6XvDLCwEtzUomkzXlsTHdjz/gRCqaGt12?=\n\t=?utf-8?q?PaQE0O2AE6FhfLWsFT6JbOlSPjQPpkbS5yzv8ULLMrGoYs75kmib//9iTwP2i43kc?=\n\t=?utf-8?q?ABxPH+yBFbyjmz6KzK0dRAVrF90LbW6kHlvTmGZ9a3IF6Qgjkd9Nit0qlTWk4KAex?=\n\t=?utf-8?q?Rj8vQjWe9R3PHK+cQ75/sgJpROrwgg88R3qnD3wxBfM05NJvNIQsf8LJ1co134Lzv?=\n\t=?utf-8?q?LmmwqhM+0v/lJkskSvmQWAZkchq45p2jeBXZelQPCjbuUcRBmMWhwGmLypj6sxKJ9?=\n\t=?utf-8?q?jRpRH/t1Fl/IOSiUTbKuh/vJa7ZpKxPosJBu73gJnhXeij6uPiJQVhYIqke5offMp?=\n\t=?utf-8?q?ZHMhlrw5bylhtQ3WAa6SKUzewy+VyDB33OGaafFdxzJVx5MklKZHi+L/J6r/WdSs0?=\n\t=?utf-8?q?MXTGheP3BTzXFv/gKh4c3VFDrKqgy0seCZpUdIoqKmELwQXVlUmfsqujSEdRemS95?=\n\t=?utf-8?q?5eHYsAi2osLnKH0tyx9UlaarZkmLQc1ZdbJK1U8veRFthezfmAy4lnD1mF5Z5UhEk?=\n\t=?utf-8?q?ecVbzRoesA5/y4ueWwAdq9/y4CrTZN6cdo1fq8a4o1CqqaNyP2KBh1B7q9ox58YTP?=\n\t=?utf-8?q?pKQqIavMlhj1eh48DmNXSpleYS2AoS/iuOhIbpDkhiWOgRwH4JL9sYrRSDxZelXlM?=\n\t=?utf-8?q?xeac0Oee+aMBrLZbqDs6yyJ1g5zKHrlk/2cM17YW+WO5Nqf9qUgIunA8/PIi3xi2d?=\n\t=?utf-8?q?VARhRXVdc6c1sc+dPLWawkefH1cy44l6ByjMbUSqVLTMPEL3FfuT7prY8kC0i1IXq?=\n\t=?utf-8?q?kDMOZoV+aLs9ebVI/ol+l0LXTY8RASZTLz6MYLvl47GbNuxJbNamkytnhXmLOs1Np?=\n\t=?utf-8?q?h2AmfMTBA1DdF7JXtz/87qJ9FK2LD0NZCoFjvQdP1yb4H46e0YZ3hhyNuN+aqy3zh?=\n\t=?utf-8?q?H1HfdgACdpH2+vBtHVz+e5ENV+NUPp2/gjn63gtRntUo5EZ5kpG3JWbG5bJVybKu0?=\n\t=?utf-8?q?Lne+Xei2ahKN?=", "X-Forefront-Antispam-Report": "CIP:192.176.1.74; CTRY:SE; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:oa.msg.ericsson.com; PTR:office365.se.ericsson.net;\n CAT:NONE; SFS:(13230031)(82310400017)(36860700004)(1800799015)(376005);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "ericsson.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "06 May 2024 08:38:20.8650 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n f63da6bc-c4da-4afa-2da7-08dc6da7e2a6", "X-MS-Exchange-CrossTenant-Id": "92e84ceb-fbfd-47ab-be52-080c6b87953f", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=92e84ceb-fbfd-47ab-be52-080c6b87953f; Ip=[192.176.1.74];\n Helo=[oa.msg.ericsson.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n AMS0EPF000001AD.eurprd05.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DB8PR07MB6410", "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>,\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" }, "content": "This RFC presents a new API <rte_lcore_var.h> for static per-lcore id\ndata allocation.\n\nPlease refer to the <rte_lcore_var.h> API documentation for both a\nrationale for this new API, and a comparison to the alternatives\navailable.\n\nThe adoption of this API would affect many different DPDK modules, but\nthe author updated only a few, mostly to serve as examples in this\nRFC, and to iron out some, but surely not all, wrinkles in the API.\n\nThe question on how to best allocate static per-lcore memory has been\nup several times on the dev mailing list, for example in the thread on\n\"random: use per lcore state\" RFC by Stephen Hemminger.\n\nLcore variables are surely not the answer to all your per-lcore-data\nneeds, since it only allows for more-or-less static allocation. In the\nauthor's opinion, it does however provide a reasonably simple and\nclean and seemingly very much performant solution to a real problem.\n\nOne thing is unclear to the author is how this API relates to a\npotential future per-lcore dynamic allocator (e.g., a per-lcore heap).\n\nMattias Rönnblom (6):\n eal: add static per-lcore memory allocation facility\n eal: add lcore variable test suite\n random: keep PRNG state in lcore variable\n power: keep per-lcore state in lcore variable\n service: keep per-lcore state in lcore variable\n eal: keep per-lcore power intrinsics state in lcore variable\n\n app/test/meson.build | 1 +\n app/test/test_lcore_var.c | 432 ++++++++++++++++++++++++++\n config/rte_config.h | 1 +\n doc/api/doxy-api-index.md | 1 +\n lib/eal/common/eal_common_lcore_var.c | 69 ++++\n lib/eal/common/meson.build | 1 +\n lib/eal/common/rte_random.c | 28 +-\n lib/eal/common/rte_service.c | 115 +++----\n lib/eal/include/meson.build | 1 +\n lib/eal/include/rte_lcore_var.h | 384 +++++++++++++++++++++++\n lib/eal/version.map | 3 +\n lib/eal/x86/rte_power_intrinsics.c | 17 +-\n lib/power/rte_power_pmd_mgmt.c | 34 +-\n 13 files changed, 1000 insertions(+), 87 deletions(-)\n create mode 100644 app/test/test_lcore_var.c\n create mode 100644 lib/eal/common/eal_common_lcore_var.c\n create mode 100644 lib/eal/include/rte_lcore_var.h" }