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{ "id": 893, "url": "https://patches.dpdk.org/api/covers/893/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20240426155125.125910-1-stephen@networkplumber.org/", "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": "<20240426155125.125910-1-stephen@networkplumber.org>", "list_archive_url": "https://inbox.dpdk.org/dev/20240426155125.125910-1-stephen@networkplumber.org", "date": "2024-04-26T15:48:50", "name": "[v9,0/9] net/tap: fix RSS (BPF) support", "submitter": { "id": 27, "url": "https://patches.dpdk.org/api/people/27/?format=api", "name": "Stephen Hemminger", "email": "stephen@networkplumber.org" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20240426155125.125910-1-stephen@networkplumber.org/mbox/", "series": [ { "id": 31834, "url": "https://patches.dpdk.org/api/series/31834/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=31834", "date": "2024-04-26T15:48:50", "name": "net/tap: fix RSS (BPF) support", "version": 9, "mbox": "https://patches.dpdk.org/series/31834/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/893/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 DD8B943B8D;\n\tFri, 26 Apr 2024 17:51:36 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id B1AD243EC8;\n\tFri, 26 Apr 2024 17:51:36 +0200 (CEST)", "from mail-pj1-f46.google.com (mail-pj1-f46.google.com\n [209.85.216.46]) by mails.dpdk.org (Postfix) with ESMTP id CD40443D7A\n for <dev@dpdk.org>; Fri, 26 Apr 2024 17:51:35 +0200 (CEST)", "by mail-pj1-f46.google.com with SMTP id\n 98e67ed59e1d1-2a2d82537efso1635844a91.2\n for <dev@dpdk.org>; Fri, 26 Apr 2024 08:51:35 -0700 (PDT)", "from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226])\n by smtp.gmail.com with ESMTPSA id\n ns5-20020a17090b250500b002a5f44353d2sm16770978pjb.7.2024.04.26.08.51.34\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Fri, 26 Apr 2024 08:51:34 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1714146695;\n x=1714751495; darn=dpdk.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=c7jwmEplM5nMKQmNUWD+ZVwc3v97wSKR3t4XyoZQ0OM=;\n b=TiEO8Jddd4TaVw9dzVrgzmTB39l8QYk1mHsTIFKtBWWL1f+SuZyICMoGY9cbsj0PnS\n pxZp6bt9j8s93JbAvvZOeBwybx50KibApBe1aJeUOGnGdvJ1b3mfDFjgi+NOKQ2uMVTH\n o8hqcmDRI2WLRDA10ae4WqtCjUyxcxkigFpKlHAUsXFMiqBLg5XEUhDkPY3eCwlwfzkF\n 71TyZJOFTDc8V+d3rphzhTkID13SNzXL9bvDHP6risRLVbu78Ex675IZuLeQdeihbwkI\n qeFRUp1ZHERkwTxa8cVLvGUOMq/1cSaPiw7aS/S2UnzYqN4RD2zA52JfrRaOXd509/6g\n mBqQ==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20230601; t=1714146695; x=1714751495;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc\n :subject:date:message-id:reply-to;\n bh=c7jwmEplM5nMKQmNUWD+ZVwc3v97wSKR3t4XyoZQ0OM=;\n b=VWLFnjcp3dV3cOsz1sDDyqf5T2ygJzTIqbw4hGm6wqp2kPggC5iZDKB9/V7sVgBzMp\n 06jBA5z3itCRhHZgp4mV8t5Kh8VLGAaUHz4EVsl38+1q+S10J3JriQy6EaFIT7thCQEP\n JjSB7s/3r9Lxgba46v0Pf7+hwjpyBoO99NuP+AGAds/GCwm4lxfjX6zsrvtigrpcxMhs\n ihuFmLMA/hzAZ6fYFcf8I3+nDBTvSSg498pS6BOtfnfNb1tfLmaf5KzVcfD1oCF2MYSp\n pOobkTn2IGIwWryT8BcON9yzxTj/eWRtXUihSiEDH6QUPGqZ5Sa0AIIM0TKyRciUuN7Y\n AmjQ==", "X-Gm-Message-State": "AOJu0YyLgtC/s+ZmxUAIZOqn1lQOFXXWFtkVMpp7zTCyNSWO+GpJeN2w\n 3otv8ijpEQUcGjJMjS08td4eaE0+sADyefmg3I5puEZRsVBRheQ/Or6+Tbb1s0WC33DBLuiU9H/\n ht9w=", "X-Google-Smtp-Source": "\n AGHT+IFS9bz3wbX8D9XPrF3bAV/4bloVtEVM8Db0bjOaC180ZSfSwOxLn7tOSUXHr0Y2FPrV8AcdPA==", "X-Received": "by 2002:a17:90a:5ac3:b0:2a2:97cd:9c94 with SMTP id\n n61-20020a17090a5ac300b002a297cd9c94mr3499582pji.40.1714146694744;\n Fri, 26 Apr 2024 08:51:34 -0700 (PDT)", "From": "Stephen Hemminger <stephen@networkplumber.org>", "To": "dev@dpdk.org", "Cc": "Stephen Hemminger <stephen@networkplumber.org>", "Subject": "[PATCH v9 0/9] net/tap: fix RSS (BPF) support", "Date": "Fri, 26 Apr 2024 08:48:50 -0700", "Message-ID": "<20240426155125.125910-1-stephen@networkplumber.org>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20240130034925.44869-1-stephen@networkplumber.org>", "References": "<20240130034925.44869-1-stephen@networkplumber.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "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": "The support of doing RSS for rte_flow_action was a cool idea\nbut it has been broken for several releases of DPDK as the\nkernel and BPF infrastructure changed.\n\nThis series cleans up the BPF program, implements several\nfeatures that were never completed in the original code\nand changes to use the current BPF toolchain.\n\nThe result should be easier to read and maintain. I do not\nintend to support backporting this to stable releases due\nto lack of demand and dealing with older distros.\n\nv9 - rebase and keep max queues at 16\n\nStephen Hemminger (9):\n net/tap: do not duplicate fd's\n net/tap: remove unused fields\n net/tap: validate and setup parameters for BPF RSS\n net/tap: do not build flow support if header is out of date\n net/tap: rewrite the RSS BPF program\n net/tap: use libbpf to load new BPF program\n net/tap: remove no longer used files\n doc: update documentation of TAP PMD\n net/tap: simplify the internal structure\n\n .gitignore | 3 -\n doc/guides/linux_gsg/sys_reqs.rst | 3 +\n doc/guides/nics/tap.rst | 274 ++--\n drivers/net/tap/bpf/Makefile | 19 -\n drivers/net/tap/bpf/README | 38 +\n drivers/net/tap/bpf/bpf_api.h | 276 ----\n drivers/net/tap/bpf/bpf_elf.h | 53 -\n drivers/net/tap/bpf/bpf_extract.py | 86 --\n drivers/net/tap/bpf/meson.build | 107 ++\n drivers/net/tap/bpf/tap_bpf_program.c | 255 ----\n drivers/net/tap/bpf/tap_rss.c | 267 ++++\n drivers/net/tap/meson.build | 42 +-\n drivers/net/tap/rte_eth_tap.c | 267 ++--\n drivers/net/tap/rte_eth_tap.h | 32 +-\n drivers/net/tap/tap_bpf.h | 121 --\n drivers/net/tap/tap_bpf_api.c | 190 ---\n drivers/net/tap/tap_bpf_insns.h | 1743 -------------------------\n drivers/net/tap/tap_flow.c | 559 +++-----\n drivers/net/tap/tap_flow.h | 17 +-\n drivers/net/tap/tap_intr.c | 7 +-\n drivers/net/tap/tap_rss.h | 21 +-\n drivers/net/tap/tap_tcmsgs.h | 4 +-\n 22 files changed, 833 insertions(+), 3551 deletions(-)\n delete mode 100644 drivers/net/tap/bpf/Makefile\n create mode 100644 drivers/net/tap/bpf/README\n delete mode 100644 drivers/net/tap/bpf/bpf_api.h\n delete mode 100644 drivers/net/tap/bpf/bpf_elf.h\n delete mode 100644 drivers/net/tap/bpf/bpf_extract.py\n create mode 100644 drivers/net/tap/bpf/meson.build\n delete mode 100644 drivers/net/tap/bpf/tap_bpf_program.c\n create mode 100644 drivers/net/tap/bpf/tap_rss.c\n delete mode 100644 drivers/net/tap/tap_bpf.h\n delete mode 100644 drivers/net/tap/tap_bpf_api.c\n delete mode 100644 drivers/net/tap/tap_bpf_insns.h" }