From patchwork Fri Jan 12 10:27:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Van Haaren, Harry" X-Patchwork-Id: 33652 X-Patchwork-Delegate: thomas@monjalon.net 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 DB0147286; Fri, 12 Jan 2018 11:27:46 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 54C733250 for ; Fri, 12 Jan 2018 11:27:45 +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 fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jan 2018 02:27:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,348,1511856000"; d="scan'208";a="26590537" Received: from silpixa00398672.ir.intel.com ([10.237.223.128]) by orsmga002.jf.intel.com with ESMTP; 12 Jan 2018 02:27:43 -0800 From: Harry van Haaren To: dev@dpdk.org Cc: thomas@monjalon.net, Harry van Haaren Date: Fri, 12 Jan 2018 10:27:16 +0000 Message-Id: <1515752838-56067-1-git-send-email-harry.van.haaren@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1507114491-144338-2-git-send-email-harry.van.haaren@intel.com> References: <1507114491-144338-2-git-send-email-harry.van.haaren@intel.com> Subject: [dpdk-dev] [PATCH v2 1/3] service: add attribute get function 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 commit adds a new function to the service API to allow the application to retrieve items about each individual service in the system. A unit test checks the return values of a variety of invalid and valid calls. Signed-off-by: Harry van Haaren --- v2: - Rebase on master, fix version.map conflicts --- lib/librte_eal/common/include/rte_service.h | 17 ++++++++ lib/librte_eal/common/rte_service.c | 18 +++++++++ lib/librte_eal/rte_eal_version.map | 1 + test/test/test_service_cores.c | 61 +++++++++++++++++++++++++++++ 4 files changed, 97 insertions(+) diff --git a/lib/librte_eal/common/include/rte_service.h b/lib/librte_eal/common/include/rte_service.h index 95def4c..4898e76 100644 --- a/lib/librte_eal/common/include/rte_service.h +++ b/lib/librte_eal/common/include/rte_service.h @@ -394,6 +394,23 @@ int32_t rte_service_lcore_count_services(uint32_t lcore); */ int32_t rte_service_dump(FILE *f, uint32_t id); +/** + * Returns the number of cycles that this service has consumed + */ +#define RTE_SERVICE_ATTR_CYCLES 0 + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Get an attribute from a service. + * + * @retval 0 Success, the attribute value has been written to *attr_value*. + * -EINVAL Invalid id, attr_id or attr_value was NULL. + */ +int32_t rte_service_attr_get(uint32_t id, uint32_t attr_id, + uint32_t *attr_value); + #ifdef __cplusplus } #endif diff --git a/lib/librte_eal/common/rte_service.c b/lib/librte_eal/common/rte_service.c index 1065392..63db475 100644 --- a/lib/librte_eal/common/rte_service.c +++ b/lib/librte_eal/common/rte_service.c @@ -682,6 +682,24 @@ rte_service_lcore_stop(uint32_t lcore) return 0; } +int32_t +rte_service_attr_get(uint32_t id, uint32_t attr_id, uint32_t *attr_value) +{ + struct rte_service_spec_impl *s; + SERVICE_VALID_GET_OR_ERR_RET(id, s, -EINVAL); + + if (!attr_value) + return -EINVAL; + + switch (attr_id) { + case RTE_SERVICE_ATTR_CYCLES: + *attr_value = s->cycles_spent; + return 0; + default: + return -EINVAL; + } +} + static void rte_service_dump_one(FILE *f, struct rte_service_spec_impl *s, uint64_t all_cycles, uint32_t reset) diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map index b3dc5a7..744de04 100644 --- a/lib/librte_eal/rte_eal_version.map +++ b/lib/librte_eal/rte_eal_version.map @@ -216,6 +216,7 @@ EXPERIMENTAL { rte_eal_devargs_remove; rte_eal_hotplug_add; rte_eal_hotplug_remove; + rte_service_attr_get; rte_service_component_register; rte_service_component_unregister; rte_service_component_runstate_set; diff --git a/test/test/test_service_cores.c b/test/test/test_service_cores.c index 2972a80..a0768c9 100644 --- a/test/test/test_service_cores.c +++ b/test/test/test_service_cores.c @@ -238,6 +238,66 @@ service_name(void) return unregister_all(); } +/* verify service attr get */ +static int +service_attr_get(void) +{ + struct rte_service_spec service; + memset(&service, 0, sizeof(struct rte_service_spec)); + service.callback = dummy_cb; + snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME); + service.capabilities |= RTE_SERVICE_CAP_MT_SAFE; + uint32_t id; + TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, &id), + "Register of service failed"); + rte_service_component_runstate_set(id, 1); + TEST_ASSERT_EQUAL(0, rte_service_runstate_set(id, 1), + "Error: Service start returned non-zero"); + rte_service_set_stats_enable(id, 1); + + uint32_t attr_id = UINT32_MAX; + uint32_t attr_value = 0xdead; + /* check error return values */ + TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(id, attr_id, + &attr_value), + "Invalid attr_id didn't return -EINVAL"); + + attr_id = RTE_SERVICE_ATTR_CYCLES; + TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(UINT32_MAX, attr_id, + &attr_value), + "Invalid service id didn't return -EINVAL"); + + TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(id, attr_id, NULL), + "Invalid attr_value pointer id didn't return -EINVAL"); + + /* check correct (zero) return value and correct value (zero) */ + TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_id, &attr_value), + "Valid attr_get() call didn't return success"); + TEST_ASSERT_EQUAL(0, attr_value, + "attr_get() call didn't set correct cycles (zero)"); + + /* Call service to increment cycle count */ + TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id), + "Service core add did not return zero"); + TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(id, slcore_id, 1), + "Enabling valid service and core failed"); + TEST_ASSERT_EQUAL(0, rte_service_lcore_start(slcore_id), + "Starting service core failed"); + + /* wait for the service lcore to run */ + rte_delay_ms(200); + + TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_id, &attr_value), + "Valid attr_get() call didn't return success"); + int cycles_gt_zero = attr_value > 0; + TEST_ASSERT_EQUAL(1, cycles_gt_zero, + "attr_get() failed to get cycles (expected > zero)"); + + rte_service_lcore_stop(slcore_id); + + return unregister_all(); +} + /* verify service dump */ static int service_dump(void) @@ -693,6 +753,7 @@ static struct unit_test_suite service_tests = { TEST_CASE_ST(dummy_register, NULL, service_name), TEST_CASE_ST(dummy_register, NULL, service_get_by_name), TEST_CASE_ST(dummy_register, NULL, service_dump), + TEST_CASE_ST(dummy_register, NULL, service_attr_get), TEST_CASE_ST(dummy_register, NULL, service_probe_capability), TEST_CASE_ST(dummy_register, NULL, service_start_stop), TEST_CASE_ST(dummy_register, NULL, service_lcore_add_del),