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{ "id": 849, "url": "http://patches.dpdk.org/api/covers/849/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20240408212438.414099-1-stephen@networkplumber.org/", "project": { "id": 1, "url": "http://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": "<20240408212438.414099-1-stephen@networkplumber.org>", "list_archive_url": "https://inbox.dpdk.org/dev/20240408212438.414099-1-stephen@networkplumber.org", "date": "2024-04-08T21:18:31", "name": "[v7,0/8] net/tap: cleanups and fix BPF support", "submitter": { "id": 27, "url": "http://patches.dpdk.org/api/people/27/?format=api", "name": "Stephen Hemminger", "email": "stephen@networkplumber.org" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20240408212438.414099-1-stephen@networkplumber.org/mbox/", "series": [ { "id": 31707, "url": "http://patches.dpdk.org/api/series/31707/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=31707", "date": "2024-04-08T21:18:31", "name": "net/tap: cleanups and fix BPF support", "version": 7, "mbox": "http://patches.dpdk.org/series/31707/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/849/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 4A84143DD2;\n\tMon, 8 Apr 2024 23:24:43 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id C610A402F0;\n\tMon, 8 Apr 2024 23:24:42 +0200 (CEST)", "from mail-oo1-f54.google.com (mail-oo1-f54.google.com\n [209.85.161.54]) by mails.dpdk.org (Postfix) with ESMTP id 88DCE402E3\n for <dev@dpdk.org>; Mon, 8 Apr 2024 23:24:41 +0200 (CEST)", "by mail-oo1-f54.google.com with SMTP id\n 006d021491bc7-5aa17c69cf7so1591735eaf.2\n for <dev@dpdk.org>; Mon, 08 Apr 2024 14:24:41 -0700 (PDT)", "from hermes.lan (204-195-96-226.wavecable.com. [204.195.96.226])\n by smtp.gmail.com with ESMTPSA id\n f16-20020a633810000000b005e43cce33f8sm6924725pga.88.2024.04.08.14.24.40\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Mon, 08 Apr 2024 14:24:40 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1712611480;\n x=1713216280; 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=25NEDq/Q42iw/VXwERY398ZNEvQSGAqcSJr0MEZDyrs=;\n b=xljf42mgiz4+h6ZijfwI2nckn/WV35r73z+RKAJY9eZj99kutTQHU+kuNknqLGJ7G4\n xIXrIkuxPNeM+dpIZpNbugQy7Y1p2n6v0w3wrSGLbT4ztEoFVfHPtt1pttOv4GbXYWep\n HUZnotrOrA/z5SpwhfpbPqxY9rcpmd3GMmx0IRtC6iLxcsGEABSmNMenAHyvHHlQoJVV\n tp4MzHlL/y6g02lnJQgzF52161I/bGTLVW9dL/mwQbPO3BJTdOIYIFiOdd9Dp+Re9uMh\n yOBJozBYCX09IQprDBCcbcRGSXefbCIdygKO14n/xZ2Oy/4PMvmp2cYSl5TU1bgHT9xs\n Nk6A==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20230601; t=1712611480; x=1713216280;\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=25NEDq/Q42iw/VXwERY398ZNEvQSGAqcSJr0MEZDyrs=;\n b=dQDdnknT0K6aeoetf9+Znx7sUAsrCqBoRshFCaEhVrjY0FRsNsnTdsicPNafNwFSjf\n zBI8h4mznENMh6+1amxJgResXFlJjo2m1qcPAPaUUXPXmmDSH6N4/gYWldlP0lcj4G7Y\n FjuY6GJDseSx45hghhvpJ3uWSYHkbBdB3wjFKMot+A3OLr15UeaD0+g/09jSIhvrdrGE\n 2tK1EzFvpWonX22rzowOaGlv25mRI8j05RZnzTDR6qaSlzbYJtdv5ZVM/u9J+ComX8V0\n 1Vf6VSDoWn5hUIcpbBonWQzPs5lcYjbLG2t181vWSB0p01VJ2XTcMAhRkU8YaTBXao+Z\n LS4Q==", "X-Gm-Message-State": "AOJu0YwP5q9bn7Cf9W6AK+i5zdTzsn2xuTeBuP3SxMzamaodEupC8zL7\n YdvPSRSOqMA4p9U7IeJrkNLXgID5ttQOsttygP1sSZoROMy45H25PfrbT6BW60Dj30zJKScwVTN\n 6Zh0=", "X-Google-Smtp-Source": "\n AGHT+IF5MCwOLo8EJ4ie+8cKoAbgqzo0UcFZMolNc6G7liYdntU5QpOO7RPHOp2BwXsFS/TG4SzNeg==", "X-Received": "by 2002:a05:6870:13ca:b0:22e:7ba2:ced4 with SMTP id\n 10-20020a05687013ca00b0022e7ba2ced4mr8696162oat.18.1712611480639;\n Mon, 08 Apr 2024 14:24:40 -0700 (PDT)", "From": "Stephen Hemminger <stephen@networkplumber.org>", "To": "dev@dpdk.org", "Cc": "Stephen Hemminger <stephen@networkplumber.org>", "Subject": "[PATCH v7 0/8] net/tap: cleanups and fix BPF support", "Date": "Mon, 8 Apr 2024 14:18:31 -0700", "Message-ID": "<20240408212438.414099-1-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.\n\nv7 - use BPF CO:RE to handle build vs runtime in skb offsets. \n - update documentation\n - workaround for older distributions where support for\n TC flower won't work. No flower == No flow support\n\nStephen Hemminger (8):\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\n .gitignore | 3 -\n doc/guides/linux_gsg/sys_reqs.rst | 3 +\n doc/guides/nics/tap.rst | 268 +---\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 | 109 ++\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 | 40 +-\n drivers/net/tap/rte_eth_tap.c | 225 ++--\n drivers/net/tap/rte_eth_tap.h | 20 +-\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 | 549 ++------\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, 786 insertions(+), 3528 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" }