From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 83589A04DD; Fri, 23 Oct 2020 19:31:22 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1EB0C5B38; Fri, 23 Oct 2020 19:31:21 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id E5A435AB5 for ; Fri, 23 Oct 2020 19:31:19 +0200 (CEST) IronPort-SDR: JoCOLJN1j4KEukV6lc0367ZteUUcXOhpnDWeDGL/T+1FwOpvYwHedElH/YDBY2ucnpO8gDsmtP jUcfmkK1Ejkw== X-IronPort-AV: E=McAfee;i="6000,8403,9782"; a="147566405" X-IronPort-AV: E=Sophos;i="5.77,409,1596524400"; d="scan'208";a="147566405" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2020 10:31:18 -0700 IronPort-SDR: iQaI7x6O9f1oZc7lyCEYuVXUTXAPa+3Wpn2rtHNwEsxBjPD9EG7cz1lRxSjrKV8jJPrIxPOw2H FjP0AWuxv83g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,409,1596524400"; d="scan'208";a="333376016" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga002.jf.intel.com with ESMTP; 23 Oct 2020 10:31:16 -0700 Received: from sivswdev09.ir.intel.com (sivswdev09.ir.intel.com [10.237.217.48]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 09NHVFuw017063; Fri, 23 Oct 2020 18:31:15 +0100 Received: from sivswdev09.ir.intel.com (localhost [127.0.0.1]) by sivswdev09.ir.intel.com with ESMTP id 09NHVFkq016546; Fri, 23 Oct 2020 18:31:15 +0100 Received: (from lma25@localhost) by sivswdev09.ir.intel.com with LOCAL id 09NHVF09016542; Fri, 23 Oct 2020 18:31:15 +0100 From: Liang Ma To: dev@dpdk.org Cc: konstantin.ananyev@intel.com, david.hunt@intel.com, jerinjacobk@gmail.com, thomas@monjalon.net, timothy.mcdaniel@intel.com, gage.eads@intel.com, Liang Ma , Anatoly Burakov Date: Fri, 23 Oct 2020 18:30:54 +0100 Message-Id: <1603474254-16451-1-git-send-email-liang.j.ma@intel.com> X-Mailer: git-send-email 1.7.7.4 In-Reply-To: References: Subject: [dpdk-dev] [PATCH v8 09/10] examples/l3fwd-power: enable PMD power mgmt 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" Add PMD power management feature support to l3fwd-power sample app. Signed-off-by: Liang Ma Signed-off-by: Anatoly Burakov Acked-by: David Hunt --- Notes: v8: - Add return status check for queue enable v6: - Fixed typos in documentation --- .../sample_app_ug/l3_forward_power_man.rst | 13 ++++++ examples/l3fwd-power/main.c | 46 ++++++++++++++++++- 2 files changed, 58 insertions(+), 1 deletion(-) diff --git a/doc/guides/sample_app_ug/l3_forward_power_man.rst b/doc/guides/sample_app_ug/l3_forward_power_man.rst index d7e1dc5813..b10ebe662e 100644 --- a/doc/guides/sample_app_ug/l3_forward_power_man.rst +++ b/doc/guides/sample_app_ug/l3_forward_power_man.rst @@ -109,6 +109,8 @@ where, * --telemetry: Telemetry mode. +* --pmd-mgmt: PMD power management mode. + See :doc:`l3_forward` for details. The L3fwd-power example reuses the L3fwd command line options. @@ -455,3 +457,14 @@ reference cycles and accordingly busy rate is set to either 0% or The new stats ``empty_poll`` , ``full_poll`` and ``busy_percent`` can be viewed by running the script ``/usertools/dpdk-telemetry-client.py`` and selecting the menu option ``Send for global Metrics``. + +PMD power management Mode +------------------------- + +The PMD power management mode support for ``l3fwd-power`` is a standalone mode, in this mode +``l3fwd-power`` does simple l3fwding along with enable the power saving scheme on specific +port/queue/lcore. Main purpose for this mode is to demonstrate how to use the PMD power management API. + +.. code-block:: console + + ./build/examples/dpdk-l3fwd-power -l 1-3 -- --pmd-mgmt -p 0x0f --config="(0,0,2),(0,1,3)" diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c index a48d75f68f..aafa415f0b 100644 --- a/examples/l3fwd-power/main.c +++ b/examples/l3fwd-power/main.c @@ -47,6 +47,7 @@ #include #include #include +#include #include "perf_core.h" #include "main.h" @@ -199,7 +200,8 @@ enum appmode { APP_MODE_LEGACY, APP_MODE_EMPTY_POLL, APP_MODE_TELEMETRY, - APP_MODE_INTERRUPT + APP_MODE_INTERRUPT, + APP_MODE_PMD_MGMT }; enum appmode app_mode; @@ -1750,6 +1752,7 @@ parse_ep_config(const char *q_arg) #define CMD_LINE_OPT_EMPTY_POLL "empty-poll" #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only" #define CMD_LINE_OPT_TELEMETRY "telemetry" +#define CMD_LINE_OPT_PMD_MGMT "pmd-mgmt" /* Parse the argument given in the command line of the application */ static int @@ -1771,6 +1774,7 @@ parse_args(int argc, char **argv) {CMD_LINE_OPT_LEGACY, 0, 0, 0}, {CMD_LINE_OPT_TELEMETRY, 0, 0, 0}, {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0}, + {CMD_LINE_OPT_PMD_MGMT, 0, 0, 0}, {NULL, 0, 0, 0} }; @@ -1881,6 +1885,16 @@ parse_args(int argc, char **argv) printf("telemetry mode is enabled\n"); } + if (!strncmp(lgopts[option_index].name, + CMD_LINE_OPT_PMD_MGMT, + sizeof(CMD_LINE_OPT_PMD_MGMT))) { + if (app_mode != APP_MODE_DEFAULT) { + printf(" power mgmt mode is mutually exclusive with other modes\n"); + return -1; + } + app_mode = APP_MODE_PMD_MGMT; + printf("PMD power mgmt mode is enabled\n"); + } if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_INTERRUPT_ONLY, sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) { @@ -2437,6 +2451,8 @@ mode_to_str(enum appmode mode) return "telemetry"; case APP_MODE_INTERRUPT: return "interrupt-only"; + case APP_MODE_PMD_MGMT: + return "pmd mgmt"; default: return "invalid"; } @@ -2705,6 +2721,17 @@ main(int argc, char **argv) } else if (!check_ptype(portid)) rte_exit(EXIT_FAILURE, "PMD can not provide needed ptypes\n"); + if (app_mode == APP_MODE_PMD_MGMT) { + ret = rte_power_pmd_mgmt_queue_enable(lcore_id, + portid, queueid, + RTE_POWER_MGMT_TYPE_SCALE); + + if (ret < 0) + rte_exit(EXIT_FAILURE, + "rte_power_pmd_mgmt enable: err=%d, " + "port=%d\n", ret, portid); + + } } } @@ -2790,6 +2817,9 @@ main(int argc, char **argv) SKIP_MAIN); } else if (app_mode == APP_MODE_INTERRUPT) { rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN); + } else if (app_mode == APP_MODE_PMD_MGMT) { + rte_eal_mp_remote_launch(main_telemetry_loop, NULL, + CALL_MAIN); } if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY) @@ -2816,6 +2846,20 @@ main(int argc, char **argv) if (app_mode == APP_MODE_EMPTY_POLL) rte_power_empty_poll_stat_free(); + if (app_mode == APP_MODE_PMD_MGMT) { + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + qconf = &lcore_conf[lcore_id]; + for (queue = 0; queue < qconf->n_rx_queue; ++queue) { + portid = qconf->rx_queue_list[queue].port_id; + queueid = qconf->rx_queue_list[queue].queue_id; + rte_power_pmd_mgmt_queue_disable(lcore_id, + portid, queueid); + } + } + } + if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) && deinit_power_library()) rte_exit(EXIT_FAILURE, "deinit_power_library failed\n"); -- 2.17.1