From patchwork Mon Oct 22 11:00:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Laatz X-Patchwork-Id: 47113 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E98344F94; Mon, 22 Oct 2018 13:00:02 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id DB7984CA9 for ; Mon, 22 Oct 2018 13:00:00 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 03:59:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,412,1534834800"; d="scan'208";a="267735193" Received: from silpixa00397517.ir.intel.com (HELO silpixa00397517.ger.corp.intel.com) ([10.237.222.54]) by orsmga005.jf.intel.com with ESMTP; 22 Oct 2018 03:59:57 -0700 From: Kevin Laatz To: dev@dpdk.org Cc: harry.van.haaren@intel.com, stephen@networkplumber.org, gaetan.rivet@6wind.com, shreyansh.jain@nxp.com, thomas@monjalon.net, mattias.ronnblom@ericsson.com, bruce.richardson@intel.com, Kevin Laatz Date: Mon, 22 Oct 2018 12:00:01 +0100 Message-Id: <20181022110014.82153-1-kevin.laatz@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20181016155802.2067-1-kevin.laatz@intel.com> References: <20181016155802.2067-1-kevin.laatz@intel.com> Subject: [dpdk-dev] [PATCH v6 00/13] introduce telemetry library X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patchset introduces a Telemetry library for DPDK Service Assurance. This library provides an easy way to query DPDK Ethdev metrics. The telemetry library provides a method for a service assurance component to retrieve metrics from a DPDK packet forwarding application. Communicating from the service assurance component to DPDK is done using a UNIX domain socket, passing a JSON formatted string. A reply is sent (again a JSON formatted string) of the current DPDK metrics. The telemetry component makes use of the existing rte_metrics library to query values. The values to be transmitted via the telemetry infrastructure must be present in the Metrics library. Currently the ethdev values are pushed to the metrics library, and the queried from there there is an open question on how applications would like this to occur. Currently only ethdev to metrics functionality is implemented, however other subsystems like crypto, eventdev, keepalive etc can use similar mechanisms. Exposing DPDK Telemetry via a socket interface enables service assurance agents like collectd to consume data from DPDK. This is vital for monitoring, fault-detection, and error reporting. A collectd plugin has been created to interact with the DPDK Telemetry component, showing how it can be used in practice. The collectd plugin will be upstreamed to collectd at a later stage. A small python script is provided in ./usertools/telemetry_client.py to quick-start using DPDK Telemetry. Note: Despite opterr being set to 0, --telemetry said to be 'unrecognized' as a startup print. This is a cosmetic issue and will be addressed in the future. --- v2: - Reworked telemetry as part of EAL instead of using vdev (Gaetan) - Refactored rte_telemetry_command (Gaetan) - Added MAINTAINERS file entry (Stephen) - Updated docs to reflect vdev to eal rework - Removed collectd patch from patchset (Thomas) - General code clean up from v1 feedback v3: - Reworked registering with eal and moved to rte_param (Gaetan) - Added BSD implementation for rte_param (Gaetan) - Updated the paths to align with the new runtime file location (Mattias) - Fixed pointer checks to align with the coding style 1.8.1 (Mattias) - Added missing decref's and close's (Mattias) - Fixed runtime issue in Meson (was not recognising flag due to linking) - More general clean up v4: - Added Doxygen comments for rte_param.h (Thomas) - Made eal_get_runtime_dir a public function to use outside of EAL (Thomas) - Reworked telemetry to get path using rte_eal_get_runtime_dir (Thomas) - Fixed checkpatch coding style error v5: - Moved the BUF_SIZE define to fix build (Harry) - Set default config for telemetry to 'n' (Harry) - Improved Doxygen comments (Thomas) - Cleaned up rte_param struct (Thomas) v6: - Renamed rte_param to rte_option (Thomas) - Moved internal functions to eal_private.h (Gaetan) - Added fail check for pthread_attr_init() (Mattias) - Changed socket implementation to SOCK_SEQPACKET (Mattias) - Added check to avoid option duplicates (Gaetan) - Removed telemetry specifics from Doxygen comment (Gaetan) - General Doxygen clean-up (Thomas) - General code clean-up Ciara Power, Brian Archbold and Kevin Laatz (10): telemetry: initial telemetry infrastructure telemetry: add initial connection socket telemetry: add client feature and sockets telemetry: add parser for client socket messages telemetry: update metrics before sending stats telemetry: format json response when sending stats telemetry: add tests for telemetry api telemetry: add ability to disable selftest doc: add telemetry documentation usertools: add client python script for telemetry Kevin Laatz (3): eal: add option register infrastructure eal: make get runtime dir function public build: add dependency on telemetry to apps in meson MAINTAINERS | 5 + app/meson.build | 4 +- app/pdump/meson.build | 2 +- app/proc-info/meson.build | 2 +- app/test-bbdev/meson.build | 2 +- app/test-crypto-perf/meson.build | 2 +- app/test-pmd/meson.build | 2 +- config/common_base | 5 + config/meson.build | 3 + doc/guides/howto/index.rst | 1 + doc/guides/howto/telemetry.rst | 85 + lib/Makefile | 2 + lib/librte_eal/bsdapp/eal/Makefile | 1 + lib/librte_eal/bsdapp/eal/eal.c | 16 +- lib/librte_eal/common/Makefile | 1 + lib/librte_eal/common/eal_filesystem.h | 15 +- lib/librte_eal/common/eal_private.h | 21 + lib/librte_eal/common/include/rte_eal.h | 9 + lib/librte_eal/common/include/rte_option.h | 63 + lib/librte_eal/common/meson.build | 2 + lib/librte_eal/common/rte_option.c | 54 + lib/librte_eal/linuxapp/eal/Makefile | 1 + lib/librte_eal/linuxapp/eal/eal.c | 16 +- lib/librte_eal/rte_eal_version.map | 2 + lib/librte_telemetry/Makefile | 30 + lib/librte_telemetry/meson.build | 9 + lib/librte_telemetry/rte_telemetry.c | 1816 +++++++++++++++++++++ lib/librte_telemetry/rte_telemetry.h | 48 + lib/librte_telemetry/rte_telemetry_internal.h | 81 + lib/librte_telemetry/rte_telemetry_parser.c | 586 +++++++ lib/librte_telemetry/rte_telemetry_parser.h | 13 + lib/librte_telemetry/rte_telemetry_parser_test.c | 534 ++++++ lib/librte_telemetry/rte_telemetry_parser_test.h | 39 + lib/librte_telemetry/rte_telemetry_socket_tests.h | 36 + lib/librte_telemetry/rte_telemetry_version.map | 7 + lib/meson.build | 3 +- meson.build | 1 + mk/rte.app.mk | 1 + usertools/dpdk-telemetry-client.py | 116 ++ 39 files changed, 3617 insertions(+), 19 deletions(-) create mode 100644 doc/guides/howto/telemetry.rst create mode 100644 lib/librte_eal/common/include/rte_option.h create mode 100644 lib/librte_eal/common/rte_option.c create mode 100644 lib/librte_telemetry/Makefile create mode 100644 lib/librte_telemetry/meson.build create mode 100644 lib/librte_telemetry/rte_telemetry.c create mode 100644 lib/librte_telemetry/rte_telemetry.h create mode 100644 lib/librte_telemetry/rte_telemetry_internal.h create mode 100644 lib/librte_telemetry/rte_telemetry_parser.c create mode 100644 lib/librte_telemetry/rte_telemetry_parser.h create mode 100644 lib/librte_telemetry/rte_telemetry_parser_test.c create mode 100644 lib/librte_telemetry/rte_telemetry_parser_test.h create mode 100644 lib/librte_telemetry/rte_telemetry_socket_tests.h create mode 100644 lib/librte_telemetry/rte_telemetry_version.map create mode 100644 usertools/dpdk-telemetry-client.py