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{ "id": 71743, "url": "http://patchwork.dpdk.org/api/covers/71743/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/cover.1592500565.git.anatoly.burakov@intel.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.1592500565.git.anatoly.burakov@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/cover.1592500565.git.anatoly.burakov@intel.com", "date": "2020-06-18T17:18:22", "name": "[v2,0/7] Add interrupt-only mode to l3fwd-power", "submitter": { "id": 4, "url": "http://patchwork.dpdk.org/api/people/4/?format=api", "name": "Anatoly Burakov", "email": "anatoly.burakov@intel.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/cover.1592500565.git.anatoly.burakov@intel.com/mbox/", "series": [ { "id": 10507, "url": "http://patchwork.dpdk.org/api/series/10507/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=10507", "date": "2020-06-18T17:18:24", "name": "Add interrupt-only mode to l3fwd-power", "version": 2, "mbox": "http://patchwork.dpdk.org/series/10507/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/71743/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 80085A04F1;\n\tThu, 18 Jun 2020 19:19:04 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 6D0101BFE4;\n\tThu, 18 Jun 2020 19:18:52 +0200 (CEST)", "from mga02.intel.com (mga02.intel.com [134.134.136.20])\n by dpdk.org (Postfix) with ESMTP id 9260A1BFB5\n for <dev@dpdk.org>; Thu, 18 Jun 2020 19:18:47 +0200 (CEST)", "from fmsmga004.fm.intel.com ([10.253.24.48])\n by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 18 Jun 2020 10:18:45 -0700", "from silpixa00399498.ir.intel.com (HELO\n silpixa00399498.ger.corp.intel.com) ([10.237.222.52])\n by fmsmga004.fm.intel.com with ESMTP; 18 Jun 2020 10:18:28 -0700" ], "IronPort-SDR": [ "\n OqAycdu7aJ9K9ekKgl3mPp0J1kzlSg1YooRqmQH9j7aGA6l3N8RoSXcf7N2IGi8MFyJ0A14vTm\n mM6dFIBx+isg==", "\n aIX84iS3ryB9FwwdEEO7nzGZ409rpMrrW4WjubGMoHZnriu4MT9yObsfuenZ+K1o6fbPjj6BcY\n scI0URsWtTxg==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6000,8403,9656\"; a=\"131064091\"", "E=Sophos;i=\"5.75,251,1589266800\"; d=\"scan'208\";a=\"131064091\"", "E=Sophos;i=\"5.75,251,1589266800\"; d=\"scan'208\";a=\"299768409\"" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "From": "Anatoly Burakov <anatoly.burakov@intel.com>", "To": "dev@dpdk.org", "Cc": "david.hunt@intel.com, reshma.pattan@intel.com, hkalra@marvell.com,\n jerinjacobk@gmail.com, yinan.wang@intel.com", "Date": "Thu, 18 Jun 2020 18:18:22 +0100", "Message-Id": "<cover.1592500565.git.anatoly.burakov@intel.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<cover.1590656906.git.anatoly.burakov@intel.com>", "References": "<cover.1590656906.git.anatoly.burakov@intel.com>", "Subject": "[dpdk-dev] [PATCH v2 0/7] Add interrupt-only mode to l3fwd-power", "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": "Since 20.05, l3fwd-power has become much more stringent about\nwhether it allows initialization without initializing the\nlibrte_power library with it. This means that while previously\nthe app could have been used to test RX interrupts functionality\neven if the app itself was in a half-working state, it is now\nno longer possible to do so.\n\nTo address this use case, we're adding an interrupt-only mode\nthat does not rely on librte_power or telemetry. This enables\nusing l3fwd-power in environments where librte_power is not\nexpected to work (such as inside a VM or on non-IA\narchitectures). The RX/TX path is basically copy paste from\nlegacy RX/TX path but with librte_power bits taken out.\n\nThere seem to be two opposing schools of thought on whether we\nshould have more or less examples. This patchset goes in the\n\"less\" direction where we add a new mode to an existing app,\nrather than creating a new one like it could be argued it\ndeserves.\n\nv2:\n- Add API to probe support for a specific power env\n- Add autodetection for the default mode\n- Add ability to request legacy mode specifically\n- Fix some code style issues\n\nAnatoly Burakov (7):\n l3fwd-power: disable interrupts by default\n l3fwd-power: only allow supported power library envs\n l3fwd-power: code style and flow fixes\n l3fwd-power: add support for requesting legacy mode\n l3fwd-power: add interrupt-only mode\n power: add API to probe support for a specific env\n l3fwd-power: add auto-selection of default mode\n\n examples/l3fwd-power/main.c | 267 ++++++++++++++++++++++--\n lib/librte_power/Makefile | 1 +\n lib/librte_power/guest_channel.c | 26 +++\n lib/librte_power/guest_channel.h | 12 ++\n lib/librte_power/meson.build | 3 +-\n lib/librte_power/power_acpi_cpufreq.c | 7 +\n lib/librte_power/power_acpi_cpufreq.h | 10 +\n lib/librte_power/power_common.c | 52 +++++\n lib/librte_power/power_common.h | 3 +\n lib/librte_power/power_kvm_vm.c | 5 +\n lib/librte_power/power_kvm_vm.h | 10 +\n lib/librte_power/power_pstate_cpufreq.c | 7 +\n lib/librte_power/power_pstate_cpufreq.h | 10 +\n lib/librte_power/rte_power.c | 17 ++\n lib/librte_power/rte_power.h | 18 ++\n lib/librte_power/rte_power_version.map | 1 +\n 16 files changed, 429 insertions(+), 20 deletions(-)\n create mode 100644 lib/librte_power/power_common.c" }