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{ "id": 41586, "url": "http://patchwork.dpdk.org/api/covers/41586/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/cover.1530031921.git.gaetan.rivet@6wind.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": "<cover.1530031921.git.gaetan.rivet@6wind.com>", "list_archive_url": "https://inbox.dpdk.org/dev/cover.1530031921.git.gaetan.rivet@6wind.com", "date": "2018-06-26T16:56:03", "name": "[v8,00/21] Device querying", "submitter": { "id": 269, "url": "http://patchwork.dpdk.org/api/people/269/?format=api", "name": "Gaëtan Rivet", "email": "gaetan.rivet@6wind.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/cover.1530031921.git.gaetan.rivet@6wind.com/mbox/", "series": [ { "id": 249, "url": "http://patchwork.dpdk.org/api/series/249/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=249", "date": "2018-06-26T16:56:03", "name": "Device querying", "version": 8, "mbox": "http://patchwork.dpdk.org/series/249/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/41586/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 96C911BDE0;\n\tTue, 26 Jun 2018 18:56:48 +0200 (CEST)", "from mail-wr0-f193.google.com (mail-wr0-f193.google.com\n\t[209.85.128.193]) by dpdk.org (Postfix) with ESMTP id 5BCB91BDDE\n\tfor <dev@dpdk.org>; Tue, 26 Jun 2018 18:56:47 +0200 (CEST)", "by mail-wr0-f193.google.com with SMTP id c13-v6so8019867wrq.2\n\tfor <dev@dpdk.org>; Tue, 26 Jun 2018 09:56:47 -0700 (PDT)", "from bidouze.dev.6wind.com. (host.78.145.23.62.rev.coltfrance.com.\n\t[62.23.145.78]) by smtp.gmail.com with ESMTPSA id\n\tp5-v6sm2680880wre.83.2018.06.26.09.56.45\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tTue, 26 Jun 2018 09:56:45 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=6wind-com.20150623.gappssmtp.com; s=20150623;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=n81ySnrENv3bBVJgCIv8h3DnTXL+P+NJKQQ+oTJclaU=;\n\tb=ZdWgXXPOzmALqvaTMofJRoQXZHCRPdr3IQCPJrwpuhNfFwPsIeCw44jpe//dt5qJlY\n\tNVpf1QHnErMmwiquowPamFED6MwgqporlfYAyugsyBevOFwQbpoIaQJPVDTC5ZmKxxEo\n\t4mg5OZeNrnwx7C53uH8bmfljjzXauRmCP09GJ+H6cwMNGA8rmGLTOI6tZCGo2aZHiRrw\n\tJQBPNJSvqBmROM/4007mEfCOepum5s+ro1bPjc0P1akDueiuFr8Jsa/G1S+dhVn0UcpA\n\tSked+vH4auqVgsYnet3tks+Sk1TDCQJ7ORJODW/oBsdI7oh1mplpl7xLmkXyrvCQ4bMb\n\tlWTw==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=n81ySnrENv3bBVJgCIv8h3DnTXL+P+NJKQQ+oTJclaU=;\n\tb=gKb+LonTFh6KaLPMhw2gEXRoNGBvRZ5qxbsQZoXhLIf0Tx1Zj5gCSq+rsWFs/0zRpA\n\t6URMijFY9rf5DS0zKh8ualc8YfWOrSN99DYAR4xwDNEvY0xDrq8IT3niSkkmFJ+Rn1m4\n\tdZ09QcaYhK2D/i5UDsDUjAwEvDcJs/G91rE4ssskkk7Gu+kvH+ndkbrgvCES/YMix7g1\n\t99y5B7krJeQT2/rHA1Afil1+P6dlfTgtWmgtrgp++aN6BIs9xHiEJj8RSM972eXS/nRf\n\tqBQNMUlOb0LCTwx4gWOVre7U0Zfcskxuj6gMkVPIsCR2h5UgUux3eWrH3rv0lXsITtlg\n\twlwQ==", "X-Gm-Message-State": "APt69E0zWC95rU4MmGYZe/l35jAsCV/DEgTgjc0rdU+dcr2g3OmccTcT\n\t1exigA/eYVcKMb0AVuhIPlhyWcC1", "X-Google-Smtp-Source": "AAOMgpegI+iQyHPo9qWLkn+LcS03ecDAxKc9ut0WhJ/Fk09BqA5BtIKdU46AmdHANg3QQaJ4gyEGGQ==", "X-Received": "by 2002:adf:bd89:: with SMTP id\n\tl9-v6mr2228519wrh.266.1530032206490; \n\tTue, 26 Jun 2018 09:56:46 -0700 (PDT)", "From": "Gaetan Rivet <gaetan.rivet@6wind.com>", "To": "dev@dpdk.org", "Cc": "Gaetan Rivet <gaetan.rivet@6wind.com>,\n\tNeil Horman <nhorman@tuxdriver.com>, \n\tKeith Wiles <keith.wiles@intel.com>, Matan Azrad <matan@mellanox.com>,\n\tShreyansh Jain <shreyansh.jain@nxp.com>", "Date": "Tue, 26 Jun 2018 18:56:03 +0200", "Message-Id": "<cover.1530031921.git.gaetan.rivet@6wind.com>", "X-Mailer": "git-send-email 2.11.0", "In-Reply-To": "<cover.1521124599.git.gaetan.rivet@6wind.com>", "References": "<cover.1521124599.git.gaetan.rivet@6wind.com>", "Subject": "[dpdk-dev] [PATCH v8 00/21] Device querying", "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\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "This patchset introduces a new EAL API for querying devices,\nfiltered by arbitrary properties.\n\nThe following elements are introduced to this end:\n\n * A new object, \"rte_class\", is used to describe\n the device class abstraction layer (eth, crypto, ...).\n\n * Both rte_bus and rte_class now offer a way to\n list their devices and filter the result\n using locally defined properties.\n\n * The rte_dev API now has an rte_dev_iterator, which\n is the way for the user to define the device filter\n and iterate upon the resulting set.\n\nAs an example, the \"eth\" device class is implemented.\n\nAdditionally, the device filters for\n\n + rte_bus_pci\n + rte_bus_vdev\n + rte_class_eth\n\nare implemented and can be used with some\nproperties each, to show how to extend those.\n\nSome example of filters:\n\n \"bus=pci/class=eth\"\n \"bus=pci\"\n \"class=eth\"\n \"class=eth,name=net_ring0\"\n \"bus=pci,id=00:00.0\"\n \"bus=vdev,driver=net_ring\"\n\n---\n\nv2:\n\n * Reworked the dev_iterate callback to simplify\n its implementation.\n\n Now dev_iterate implementation do not need to learn\n about the intricacies of the rte_dev_iterator.\n The rte_dev_iterator is managed purely by the\n rte_dev_iterator_next function. Buses and classes then\n do not have to care about settings things right.\n\n Additionally, dev_iterate implementations do not\n have to sanitize their dev string anymore, they\n are prepared by the rte_dev layer prior, which also\n reduces the number of dynamic allocations.\n\nv3:\n\n * Introduced central constructor priority list.\n * Removed lightweight kvarg parsing utility,\n using librte_kvargs instead.\n * Reversed dependencies of librte_kvargs and\n librte_eal.\n * Fixed a few bugs.\n * @Bruce: I have noted the request for meson support.\n I will install it and attempt it once the bulk of the work is done.\n\nv4:\n\n * Fixed a few bugs, added relevant acks,\n fixed some typos.\n * Made each matching functions actually check for a proper\n list of accepted properties.\n * rte_kvargs now includes rte_eal directly and keeps rte_log.\n * added generic string comparison function to rte_kvargs,\n as some kind of comparison should probably be shared by many layers.\n\nv5:\n\n * Rebased on master\n * Use strcspn instead of custom function.\n * Introduce private generic rte_eth_dev iterator.\n This could be generalized to other iterators\n (port_next, owner_id-aware, etc).\n * Attempted to support meson.build.\n Got lost in the implicit variables declared\n when inversing dependencies between kvargs and EAL.\n Removed anything related to meson.\n * Postponed genericization of work from\n device query to device declaration.\n Much bigger than anticipated, will let this\n part get in first and iterate over it.\n\nv6:\n\n * Rebased on master\n * Introduce RTE_PRIORITY_LAST, to explicitly set\n the lowest constructor priority.\n * Fix copyright notice for eth_privage.* files.\n\nv7:\n\n * Rebased on master\n * Fix rte_kvargs_strcmp return value.\n * Fix layer parsing error\n devstr \"bus=pci/onemorelayer\" now tells\n that the additional layer is not recognized.\n\nv8:\n\n * Rebased on master\n * Cleaned kvargs use: introduced\n a new parser function, that simplifies\n using the library for DPDK devargs.\n * Refactored devargs parsing in a single\n function within rte_devargs.\n This function is useful both for rte_dev\n parsing its iterator, and for rte_devargs\n parsing --dev parameters (not yet implemented).\n * A few small bugfixes.\n\nGaetan Rivet (21):\n devargs: add non-variadic parsing function\n kvargs: build before EAL\n kvargs: introduce a more flexible parsing function\n eal: introduce dtor macros\n eal: introduce device class abstraction\n eal/class: register destructor\n devargs: add function to parse device layers\n eal/dev: add device iterator interface\n eal/class: add device iteration\n eal/bus: add device iteration\n eal/dev: implement device iteration initialization\n eal/dev: implement device iteration\n kvargs: add generic string matching callback\n bus/pci: implement device iteration and comparison\n bus/pci: add device matching field id\n bus/vdev: implement device iteration\n bus/vdev: add device matching field driver\n ethdev: add private generic device iterator\n ethdev: register ether layer as a class\n ethdev: add device matching field name\n app/testpmd: add show device command\n\n app/test-pmd/cmdline.c | 51 +++++++\n doc/guides/testpmd_app_ug/testpmd_funcs.rst | 24 +++\n drivers/bus/pci/Makefile | 3 +-\n drivers/bus/pci/pci_common.c | 3 +-\n drivers/bus/pci/pci_params.c | 78 ++++++++++\n drivers/bus/pci/private.h | 25 +++\n drivers/bus/vdev/Makefile | 3 +-\n drivers/bus/vdev/vdev.c | 10 +-\n drivers/bus/vdev/vdev_params.c | 62 ++++++++\n drivers/bus/vdev/vdev_private.h | 26 ++++\n drivers/net/failsafe/failsafe_args.c | 2 +-\n drivers/net/failsafe/failsafe_eal.c | 2 +-\n lib/Makefile | 5 +-\n lib/librte_eal/bsdapp/eal/Makefile | 2 +\n lib/librte_eal/common/Makefile | 2 +-\n lib/librte_eal/common/eal_common_class.c | 62 ++++++++\n lib/librte_eal/common/eal_common_dev.c | 227 +++++++++++++++++++++++++++-\n lib/librte_eal/common/eal_common_devargs.c | 186 +++++++++++++++++++++--\n lib/librte_eal/common/eal_private.h | 27 ++++\n lib/librte_eal/common/include/rte_bus.h | 1 +\n lib/librte_eal/common/include/rte_class.h | 127 ++++++++++++++++\n lib/librte_eal/common/include/rte_common.h | 24 +++\n lib/librte_eal/common/include/rte_dev.h | 97 ++++++++++++\n lib/librte_eal/common/include/rte_devargs.h | 53 ++++++-\n lib/librte_eal/linuxapp/eal/Makefile | 2 +\n lib/librte_eal/rte_eal_version.map | 5 +\n lib/librte_ethdev/Makefile | 4 +-\n lib/librte_ethdev/eth_private.c | 31 ++++\n lib/librte_ethdev/eth_private.h | 26 ++++\n lib/librte_ethdev/rte_class_eth.c | 86 +++++++++++\n lib/librte_ethdev/rte_ethdev.c | 2 +-\n lib/librte_kvargs/Makefile | 2 +-\n lib/librte_kvargs/rte_kvargs.c | 35 +++++\n lib/librte_kvargs/rte_kvargs.h | 58 +++++++\n lib/librte_kvargs/rte_kvargs_version.map | 8 +\n 35 files changed, 1328 insertions(+), 33 deletions(-)\n create mode 100644 drivers/bus/pci/pci_params.c\n create mode 100644 drivers/bus/vdev/vdev_params.c\n create mode 100644 drivers/bus/vdev/vdev_private.h\n create mode 100644 lib/librte_eal/common/eal_common_class.c\n create mode 100644 lib/librte_eal/common/include/rte_class.h\n create mode 100644 lib/librte_ethdev/eth_private.c\n create mode 100644 lib/librte_ethdev/eth_private.h\n create mode 100644 lib/librte_ethdev/rte_class_eth.c" }