From patchwork Thu Dec 5 17:31:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Power, Ciara" X-Patchwork-Id: 63607 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id C4B15A04F2; Thu, 5 Dec 2019 18:34:59 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 90F051BFAE; Thu, 5 Dec 2019 18:34:20 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 1564C1BF94 for ; Thu, 5 Dec 2019 18:34:14 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Dec 2019 09:34:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,282,1571727600"; d="scan'208";a="223711855" Received: from silpixa00399953.ir.intel.com (HELO silpixa00399953.ger.corp.intel.com) ([10.237.222.53]) by orsmga002.jf.intel.com with ESMTP; 05 Dec 2019 09:34:13 -0800 From: Ciara Power To: dev@dpdk.org Cc: Ciara Power , Bruce Richardson Date: Thu, 5 Dec 2019 17:31:27 +0000 Message-Id: <20191205173128.64543-6-ciara.power@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191205173128.64543-1-ciara.power@intel.com> References: <20191205173128.64543-1-ciara.power@intel.com> Subject: [dpdk-dev] [RFC 5/6] rawdev: add callback support for process-info 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" The rawdev library now registers commands with process_info, and implements the corresponding callback functions. These allow a list of rawdev devices and stats for a rawdev port to be queried. Signed-off-by: Bruce Richardson Signed-off-by: Ciara Power --- lib/librte_rawdev/Makefile | 3 +- lib/librte_rawdev/meson.build | 1 + lib/librte_rawdev/rte_rawdev.c | 82 ++++++++++++++++++++++++++++++++++ 3 files changed, 85 insertions(+), 1 deletion(-) diff --git a/lib/librte_rawdev/Makefile b/lib/librte_rawdev/Makefile index 7dd1197dc..6e1d4ea05 100644 --- a/lib/librte_rawdev/Makefile +++ b/lib/librte_rawdev/Makefile @@ -9,7 +9,8 @@ LIB = librte_rawdev.a # build flags CFLAGS += -O3 CFLAGS += $(WERROR_FLAGS) -LDLIBS += -lrte_eal +CFLAGS += -DALLOW_EXPERIMENTAL_API +LDLIBS += -lrte_eal -lrte_process_info # library source files SRCS-y += rte_rawdev.c diff --git a/lib/librte_rawdev/meson.build b/lib/librte_rawdev/meson.build index a20fbdc04..dcd37ad49 100644 --- a/lib/librte_rawdev/meson.build +++ b/lib/librte_rawdev/meson.build @@ -1,5 +1,6 @@ # SPDX-License-Identifier: BSD-3-Clause # Copyright(c) 2018 Intel Corporation +allow_experimental_apis = true sources = files('rte_rawdev.c') headers = files('rte_rawdev.h', 'rte_rawdev_pmd.h') diff --git a/lib/librte_rawdev/rte_rawdev.c b/lib/librte_rawdev/rte_rawdev.c index b6f1e1c77..477e12af6 100644 --- a/lib/librte_rawdev/rte_rawdev.c +++ b/lib/librte_rawdev/rte_rawdev.c @@ -29,6 +29,7 @@ #include #include #include +#include #include "rte_rawdev.h" #include "rte_rawdev_pmd.h" @@ -544,9 +545,90 @@ rte_rawdev_pmd_release(struct rte_rawdev *rawdev) return 0; } +static int +handle_dev_list(const char *cmd __rte_unused, + const char *params __rte_unused, + char *buffer, int buf_len) +{ + int used = 0; + int i; + + used = strlcpy(buffer, "[", buf_len); + for (i = 0; i < rawdev_globals.nb_devs; i++) + if (rte_rawdevices[i].attached == RTE_RAWDEV_ATTACHED) + used += snprintf(buffer + used, buf_len - used, "%d,", + rte_rawdevices[i].dev_id); + + buffer[used - 1] = ']'; + return used; +} + +static int +handle_dev_stats(const char *cmd __rte_unused, + const char *params, + char *buffer, int buf_len) +{ + uint64_t *rawdev_xstats; + struct rte_rawdev_xstats_name *xstat_names; + int dev_id, num_xstats, i, ret; + int used = 0; + unsigned int *ids; + + if (params == NULL || strlen(params) == 0 || !isdigit(*params)) + return -1; + + dev_id = atoi(params); + if (!rte_rawdev_pmd_is_valid_dev(dev_id)) + return -1; + + used = strlcpy(buffer, "{", buf_len); + + num_xstats = xstats_get_count(dev_id); + if (num_xstats < 0) + return -1; + + /* use one malloc for names, stats and ids */ + rawdev_xstats = malloc((sizeof(uint64_t) + + sizeof(struct rte_rawdev_xstats_name) + + sizeof(unsigned int)) * num_xstats); + if (rawdev_xstats == NULL) + return -1; + xstat_names = (void *)&rawdev_xstats[num_xstats]; + ids = (void *)&xstat_names[num_xstats]; + + ret = rte_rawdev_xstats_names_get(dev_id, xstat_names, num_xstats); + if (ret < 0 || ret > num_xstats) { + free(rawdev_xstats); + return -1; + } + + for (i = 0; i < num_xstats; i++) + ids[i] = i; + + ret = rte_rawdev_xstats_get(dev_id, ids, rawdev_xstats, num_xstats); + if (ret < 0 || ret > num_xstats) { + free(rawdev_xstats); + return -1; + } + + for (i = 0; i < num_xstats; i++) { + ret = snprintf(buffer + used, buf_len - used, "\"%s\":%"PRIu64",", + xstat_names[i].name, rawdev_xstats[i]); + if (ret + used >= buf_len) + break; + used += ret; + } + + buffer[used - 1] = '}'; + free(rawdev_xstats); + return used; +} + RTE_INIT(librawdev_init_log) { librawdev_logtype = rte_log_register("lib.rawdev"); if (librawdev_logtype >= 0) rte_log_set_level(librawdev_logtype, RTE_LOG_INFO); + rte_process_info_register("/rawdev:list", handle_dev_list); + rte_process_info_register("/rawdev:stats", handle_dev_stats); }