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(seliicwb00002.seli.gic.ericsson.se [10.156.25.100]) by seliicinfr00049.seli.gic.ericsson.se (Postfix) with ESMTP id D82F9380061; Mon, 4 Sep 2023 15:09:00 +0200 (CEST) From: =?UTF-8?q?Mattias=20R=C3=B6nnblom?= To: CC: Jerin Jacob , , , , Peter Nilsson , Heng Wang , "Naga Harish K S V" , Pavan Nikhilesh , Gujjar Abhinandan S , Erik Gabriel Carrillo , Shijith Thotton , "Hemant Agrawal" , Sachin Saxena , Liang Ma , Peter Mccarthy , Zhirun Yan , =?UTF-8?q?Mattias=20R=C3=B6nnblom?= Subject: [PATCH v3 2/3] test: add dispatcher test suite Date: Mon, 4 Sep 2023 15:03:12 +0200 Message-ID: <20230904130313.327809-3-mattias.ronnblom@ericsson.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230904130313.327809-1-mattias.ronnblom@ericsson.com> References: <20230616074041.159675-2-mattias.ronnblom@ericsson.com> <20230904130313.327809-1-mattias.ronnblom@ericsson.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM1PEPF000252DC:EE_|GVXPR07MB9678:EE_ X-MS-Office365-Filtering-Correlation-Id: 618181e7-ff80-41a4-598f-08dbad481c31 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:192.176.1.74; CTRY:SE; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:oa.msg.ericsson.com; PTR:office365.se.ericsson.net; CAT:NONE; SFS:(13230031)(4636009)(39860400002)(346002)(136003)(376002)(396003)(451199024)(1800799009)(82310400011)(186009)(46966006)(36840700001)(40470700004)(30864003)(7416002)(41300700001)(8936002)(40480700001)(83380400001)(66574015)(478600001)(6916009)(6666004)(2906002)(70586007)(70206006)(5660300002)(4326008)(8676002)(54906003)(316002)(107886003)(2616005)(1076003)(40460700003)(26005)(36860700001)(336012)(6266002)(356005)(36756003)(7636003)(82740400003)(82960400001)(47076005)(86362001); DIR:OUT; SFP:1101; X-OriginatorOrg: ericsson.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Sep 2023 13:09:02.4366 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 618181e7-ff80-41a4-598f-08dbad481c31 X-MS-Exchange-CrossTenant-Id: 92e84ceb-fbfd-47ab-be52-080c6b87953f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=92e84ceb-fbfd-47ab-be52-080c6b87953f; Ip=[192.176.1.74]; Helo=[oa.msg.ericsson.com] X-MS-Exchange-CrossTenant-AuthSource: AM1PEPF000252DC.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GVXPR07MB9678 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add unit tests for the dispatcher. -- PATCH v3: o Adapt the test suite to dispatcher API name changes. PATCH v2: o Test finalize callback functionality. o Test handler and finalizer count upper limits. o Add statistics reset test. o Make sure dispatcher supply the proper event dev id and port id back to the application. PATCH: o Extend test to cover often-used handler optimization feature. RFC v4: o Adapt to non-const events in process function prototype. Signed-off-by: Mattias Rönnblom --- MAINTAINERS | 1 + app/test/meson.build | 1 + app/test/test_dispatcher.c | 1054 ++++++++++++++++++++++++++++++++++++ 3 files changed, 1056 insertions(+) create mode 100644 app/test/test_dispatcher.c diff --git a/MAINTAINERS b/MAINTAINERS index 6704cd5b2c..43890cad0e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1729,6 +1729,7 @@ F: lib/node/ Dispatcher - EXPERIMENTAL M: Mattias Rönnblom F: lib/dispatcher/ +F: app/test/test_dispatcher.c Test Applications ----------------- diff --git a/app/test/meson.build b/app/test/meson.build index 05bae9216d..3303c73817 100644 --- a/app/test/meson.build +++ b/app/test/meson.build @@ -55,6 +55,7 @@ source_file_deps = { 'test_cycles.c': [], 'test_debug.c': [], 'test_devargs.c': ['kvargs'], + 'test_dispatcher.c': ['dispatcher'], 'test_distributor.c': ['distributor'], 'test_distributor_perf.c': ['distributor'], 'test_dmadev.c': ['dmadev', 'bus_vdev'], diff --git a/app/test/test_dispatcher.c b/app/test/test_dispatcher.c new file mode 100644 index 0000000000..b64103c48e --- /dev/null +++ b/app/test/test_dispatcher.c @@ -0,0 +1,1054 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2023 Ericsson AB + */ + +#include "test.h" + +#include + +#include +#include +#include +#include +#include + +#define NUM_WORKERS 3 + +#define NUM_PORTS (NUM_WORKERS + 1) +#define WORKER_PORT_ID(worker_idx) (worker_idx) +#define DRIVER_PORT_ID (NUM_PORTS - 1) + +#define NUM_SERVICE_CORES NUM_WORKERS + +/* Eventdev */ +#define NUM_QUEUES 8 +#define LAST_QUEUE_ID (NUM_QUEUES - 1) +#define MAX_EVENTS 4096 +#define NEW_EVENT_THRESHOLD (MAX_EVENTS / 2) +#define DEQUEUE_BURST_SIZE 32 +#define ENQUEUE_BURST_SIZE 32 + +#define NUM_EVENTS 10000000 +#define NUM_FLOWS 16 + +#define DSW_VDEV "event_dsw0" + +struct app_queue { + uint8_t queue_id; + uint64_t sn[NUM_FLOWS]; + int dispatcher_reg_id; +}; + +struct cb_count { + uint8_t expected_event_dev_id; + uint8_t expected_event_port_id[RTE_MAX_LCORE]; + atomic_int count; +}; + +struct test_app { + uint8_t event_dev_id; + uint8_t dispatcher_id; + uint32_t dispatcher_service_id; + + unsigned int service_lcores[NUM_SERVICE_CORES]; + + int never_match_reg_id; + uint64_t never_match_count; + struct cb_count never_process_count; + + struct app_queue queues[NUM_QUEUES]; + + int finalize_reg_id; + struct cb_count finalize_count; + + bool running; + + atomic_int completed_events; + atomic_int errors; +}; + +#define RETURN_ON_ERROR(rc) \ + do { \ + if (rc != TEST_SUCCESS) \ + return rc; \ + } while (0) + +static struct test_app * +test_app_create(void) +{ + int i; + struct test_app *app; + + app = calloc(1, sizeof(struct test_app)); + + if (app == NULL) + return NULL; + + for (i = 0; i < NUM_QUEUES; i++) + app->queues[i].queue_id = i; + + return app; +} + +static void +test_app_free(struct test_app *app) +{ + free(app); +} + +static int +test_app_create_vdev(struct test_app *app) +{ + int rc; + + rc = rte_vdev_init(DSW_VDEV, NULL); + if (rc < 0) + return TEST_SKIPPED; + + rc = rte_event_dev_get_dev_id(DSW_VDEV); + + app->event_dev_id = (uint8_t)rc; + + return TEST_SUCCESS; +} + +static int +test_app_destroy_vdev(struct test_app *app) +{ + int rc; + + rc = rte_event_dev_close(app->event_dev_id); + TEST_ASSERT_SUCCESS(rc, "Error while closing event device"); + + rc = rte_vdev_uninit(DSW_VDEV); + TEST_ASSERT_SUCCESS(rc, "Error while uninitializing virtual device"); + + return TEST_SUCCESS; +} + +static int +test_app_setup_event_dev(struct test_app *app) +{ + int rc; + int i; + + rc = test_app_create_vdev(app); + if (rc < 0) + return rc; + + struct rte_event_dev_config config = { + .nb_event_queues = NUM_QUEUES, + .nb_event_ports = NUM_PORTS, + .nb_events_limit = MAX_EVENTS, + .nb_event_queue_flows = 64, + .nb_event_port_dequeue_depth = DEQUEUE_BURST_SIZE, + .nb_event_port_enqueue_depth = ENQUEUE_BURST_SIZE + }; + + rc = rte_event_dev_configure(app->event_dev_id, &config); + + TEST_ASSERT_SUCCESS(rc, "Unable to configure event device"); + + struct rte_event_queue_conf queue_config = { + .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, + .schedule_type = RTE_SCHED_TYPE_ATOMIC, + .nb_atomic_flows = 64 + }; + + for (i = 0; i < NUM_QUEUES; i++) { + uint8_t queue_id = i; + + rc = rte_event_queue_setup(app->event_dev_id, queue_id, + &queue_config); + + TEST_ASSERT_SUCCESS(rc, "Unable to setup queue %d", queue_id); + } + + struct rte_event_port_conf port_config = { + .new_event_threshold = NEW_EVENT_THRESHOLD, + .dequeue_depth = DEQUEUE_BURST_SIZE, + .enqueue_depth = ENQUEUE_BURST_SIZE + }; + + for (i = 0; i < NUM_PORTS; i++) { + uint8_t event_port_id = i; + + rc = rte_event_port_setup(app->event_dev_id, event_port_id, + &port_config); + TEST_ASSERT_SUCCESS(rc, "Failed to create event port %d", + event_port_id); + + if (event_port_id == DRIVER_PORT_ID) + continue; + + rc = rte_event_port_link(app->event_dev_id, event_port_id, + NULL, NULL, 0); + + TEST_ASSERT_EQUAL(rc, NUM_QUEUES, "Failed to link port %d", + event_port_id); + } + + return TEST_SUCCESS; +} + +static int +test_app_teardown_event_dev(struct test_app *app) +{ + return test_app_destroy_vdev(app); +} + +static int +test_app_start_event_dev(struct test_app *app) +{ + int rc; + + rc = rte_event_dev_start(app->event_dev_id); + TEST_ASSERT_SUCCESS(rc, "Unable to start event device"); + + return TEST_SUCCESS; +} + +static void +test_app_stop_event_dev(struct test_app *app) +{ + rte_event_dev_stop(app->event_dev_id); +} + +static int +test_app_create_dispatcher(struct test_app *app) +{ + int rc; + + app->dispatcher_id = rte_rand_max(256); + + rc = rte_dispatcher_create(app->dispatcher_id, app->event_dev_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to create event dispatcher"); + + rc = rte_dispatcher_service_id_get(app->dispatcher_id, + &app->dispatcher_service_id); + TEST_ASSERT_SUCCESS(rc, "Unable to get event dispatcher service ID"); + + rc = rte_service_set_stats_enable(app->dispatcher_service_id, 1); + + TEST_ASSERT_SUCCESS(rc, "Unable to enable event dispatcher service " + "stats"); + + rc = rte_service_runstate_set(app->dispatcher_service_id, 1); + TEST_ASSERT_SUCCESS(rc, "Error disabling dispatcher service"); + + return TEST_SUCCESS; +} + +static int +test_app_free_dispatcher(struct test_app *app) +{ + int rc; + + rc = rte_service_runstate_set(app->dispatcher_service_id, 0); + TEST_ASSERT_SUCCESS(rc, "Error disabling dispatcher service"); + + rte_dispatcher_free(app->dispatcher_id); + + return TEST_SUCCESS; +} + +static int +test_app_bind_ports(struct test_app *app) +{ + int i; + + app->never_process_count.expected_event_dev_id = + app->event_dev_id; + app->finalize_count.expected_event_dev_id = + app->event_dev_id; + + for (i = 0; i < NUM_WORKERS; i++) { + unsigned int lcore_id = app->service_lcores[i]; + uint8_t port_id = WORKER_PORT_ID(i); + + int rc = rte_dispatcher_bind_port_to_lcore( + app->dispatcher_id, port_id, DEQUEUE_BURST_SIZE, 0, + lcore_id + ); + + TEST_ASSERT_SUCCESS(rc, "Unable to bind event device port %d " + "to lcore %d", port_id, lcore_id); + + app->never_process_count.expected_event_port_id[lcore_id] = + port_id; + app->finalize_count.expected_event_port_id[lcore_id] = port_id; + } + + + return TEST_SUCCESS; +} + +static int +test_app_unbind_ports(struct test_app *app) +{ + int i; + + for (i = 0; i < NUM_WORKERS; i++) { + unsigned int lcore_id = app->service_lcores[i]; + + int rc = rte_dispatcher_unbind_port_from_lcore( + app->dispatcher_id, + WORKER_PORT_ID(i), + lcore_id + ); + + TEST_ASSERT_SUCCESS(rc, "Unable to unbind event device port %d " + "from lcore %d", WORKER_PORT_ID(i), + lcore_id); + } + + return TEST_SUCCESS; +} + +static bool +match_queue(const struct rte_event *event, void *cb_data) +{ + uintptr_t queue_id = (uintptr_t)cb_data; + + return event->queue_id == queue_id; +} + +static int +test_app_get_worker_index(struct test_app *app, unsigned int lcore_id) +{ + int i; + + for (i = 0; i < NUM_SERVICE_CORES; i++) + if (app->service_lcores[i] == lcore_id) + return i; + + return -1; +} + +static int +test_app_get_worker_port(struct test_app *app, unsigned int lcore_id) +{ + int worker; + + worker = test_app_get_worker_index(app, lcore_id); + + if (worker < 0) + return -1; + + return WORKER_PORT_ID(worker); +} + +static void +test_app_queue_note_error(struct test_app *app) +{ + atomic_fetch_add_explicit(&app->errors, 1, memory_order_relaxed); +} + +static void +test_app_process_queue(uint8_t p_event_dev_id, uint8_t p_event_port_id, + struct rte_event *in_events, uint16_t num, + void *cb_data) +{ + struct app_queue *app_queue = cb_data; + struct test_app *app = container_of(app_queue, struct test_app, + queues[app_queue->queue_id]); + unsigned int lcore_id = rte_lcore_id(); + bool intermediate_queue = app_queue->queue_id != LAST_QUEUE_ID; + int event_port_id; + uint16_t i; + struct rte_event out_events[num]; + + event_port_id = test_app_get_worker_port(app, lcore_id); + + if (event_port_id < 0 || p_event_dev_id != app->event_dev_id || + p_event_port_id != event_port_id) { + test_app_queue_note_error(app); + return; + } + + for (i = 0; i < num; i++) { + const struct rte_event *in_event = &in_events[i]; + struct rte_event *out_event = &out_events[i]; + uint64_t sn = in_event->u64; + uint64_t expected_sn; + + if (in_event->queue_id != app_queue->queue_id) { + test_app_queue_note_error(app); + return; + } + + expected_sn = app_queue->sn[in_event->flow_id]++; + + if (expected_sn != sn) { + test_app_queue_note_error(app); + return; + } + + if (intermediate_queue) + *out_event = (struct rte_event) { + .queue_id = in_event->queue_id + 1, + .flow_id = in_event->flow_id, + .sched_type = RTE_SCHED_TYPE_ATOMIC, + .op = RTE_EVENT_OP_FORWARD, + .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, + .u64 = sn + }; + } + + if (intermediate_queue) { + uint16_t n = 0; + + do { + n += rte_event_enqueue_forward_burst(p_event_dev_id, + p_event_port_id, + out_events + n, + num - n); + } while (n != num); + } else + atomic_fetch_add_explicit(&app->completed_events, num, + memory_order_relaxed); +} + +static bool +never_match(const struct rte_event *event __rte_unused, void *cb_data) +{ + uint64_t *count = cb_data; + + (*count)++; + + return false; +} + +static void +test_app_never_process(uint8_t event_dev_id, + uint8_t event_port_id, + struct rte_event *in_events __rte_unused, + uint16_t num, void *cb_data) +{ + struct cb_count *count = cb_data; + unsigned int lcore_id = rte_lcore_id(); + + if (event_dev_id == count->expected_event_dev_id && + event_port_id == count->expected_event_port_id[lcore_id]) + atomic_fetch_add_explicit(&count->count, num, + memory_order_relaxed); +} + +static void +finalize(uint8_t event_dev_id, uint8_t event_port_id, void *cb_data) +{ + struct cb_count *count = cb_data; + unsigned int lcore_id = rte_lcore_id(); + + if (event_dev_id == count->expected_event_dev_id && + event_port_id == count->expected_event_port_id[lcore_id]) + atomic_fetch_add_explicit(&count->count, 1, + memory_order_relaxed); +} + +static int +test_app_register_callbacks(struct test_app *app) +{ + int i; + + app->never_match_reg_id = + rte_dispatcher_register(app->dispatcher_id, never_match, + &app->never_match_count, + test_app_never_process, + &app->never_process_count); + + TEST_ASSERT(app->never_match_reg_id >= 0, "Unable to register " + "never-match handler"); + + for (i = 0; i < NUM_QUEUES; i++) { + struct app_queue *app_queue = &app->queues[i]; + uintptr_t queue_id = app_queue->queue_id; + int reg_id; + + reg_id = rte_dispatcher_register(app->dispatcher_id, + match_queue, (void *)queue_id, + test_app_process_queue, + app_queue); + + TEST_ASSERT(reg_id >= 0, "Unable to register consumer " + "callback for queue %d", i); + + app_queue->dispatcher_reg_id = reg_id; + } + + app->finalize_reg_id = + rte_dispatcher_finalize_register(app->dispatcher_id, + finalize, + &app->finalize_count); + TEST_ASSERT_SUCCESS(app->finalize_reg_id, "Error registering " + "finalize callback"); + + return TEST_SUCCESS; +} + +static int +test_app_unregister_callback(struct test_app *app, uint8_t queue_id) +{ + int reg_id = app->queues[queue_id].dispatcher_reg_id; + int rc; + + if (reg_id < 0) /* unregistered already */ + return 0; + + rc = rte_dispatcher_unregister(app->dispatcher_id, reg_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to unregister consumer " + "callback for queue %d", queue_id); + + app->queues[queue_id].dispatcher_reg_id = -1; + + return TEST_SUCCESS; +} + +static int +test_app_unregister_callbacks(struct test_app *app) +{ + int i; + int rc; + + if (app->never_match_reg_id >= 0) { + rc = rte_dispatcher_unregister(app->dispatcher_id, + app->never_match_reg_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to unregister never-match " + "handler"); + app->never_match_reg_id = -1; + } + + for (i = 0; i < NUM_QUEUES; i++) { + rc = test_app_unregister_callback(app, i); + RETURN_ON_ERROR(rc); + } + + if (app->finalize_reg_id >= 0) { + rc = rte_dispatcher_finalize_unregister( + app->dispatcher_id, app->finalize_reg_id + ); + app->finalize_reg_id = -1; + } + + return TEST_SUCCESS; +} + +static int +test_app_start_dispatcher(struct test_app *app) +{ + int rc; + + rc = rte_dispatcher_start(app->dispatcher_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to start the event dispatcher"); + + return TEST_SUCCESS; +} + +static int +test_app_stop_dispatcher(struct test_app *app) +{ + int rc; + + rc = rte_dispatcher_stop(app->dispatcher_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to stop the event dispatcher"); + + return TEST_SUCCESS; +} + +static int +test_app_reset_dispatcher_stats(struct test_app *app) +{ + int rc; + struct rte_dispatcher_stats stats; + + rc = rte_dispatcher_stats_reset(app->dispatcher_id); + + TEST_ASSERT_SUCCESS(rc, "Unable to reset event dispatcher statistics"); + + rc = rte_dispatcher_stats_get(app->dispatcher_id, &stats); + + TEST_ASSERT_SUCCESS(rc, "Unable to retrieve event dispatcher " + "statistics"); + + TEST_ASSERT_EQUAL(stats.poll_count, 0, "Poll count not zero"); + TEST_ASSERT_EQUAL(stats.ev_batch_count, 0, "Batch count not zero"); + TEST_ASSERT_EQUAL(stats.ev_dispatch_count, 0, "Dispatch count " + "not zero"); + TEST_ASSERT_EQUAL(stats.ev_drop_count, 0, "Drop count not zero"); + + return TEST_SUCCESS; +} + +static int +test_app_setup_service_core(struct test_app *app, unsigned int lcore_id) +{ + int rc; + + rc = rte_service_lcore_add(lcore_id); + TEST_ASSERT_SUCCESS(rc, "Unable to make lcore %d an event dispatcher " + "service core", lcore_id); + + rc = rte_service_map_lcore_set(app->dispatcher_service_id, lcore_id, 1); + TEST_ASSERT_SUCCESS(rc, "Unable to map event dispatcher service"); + + return TEST_SUCCESS; +} + +static int +test_app_setup_service_cores(struct test_app *app) +{ + int i; + int lcore_id = -1; + + for (i = 0; i < NUM_SERVICE_CORES; i++) { + lcore_id = rte_get_next_lcore(lcore_id, 1, 0); + + TEST_ASSERT(lcore_id != RTE_MAX_LCORE, + "Too few lcores. Needs at least %d worker lcores", + NUM_SERVICE_CORES); + + app->service_lcores[i] = lcore_id; + } + + for (i = 0; i < NUM_SERVICE_CORES; i++) { + int rc; + + rc = test_app_setup_service_core(app, app->service_lcores[i]); + + RETURN_ON_ERROR(rc); + } + + return TEST_SUCCESS; +} + +static int +test_app_teardown_service_core(struct test_app *app, unsigned int lcore_id) +{ + int rc; + + rc = rte_service_map_lcore_set(app->dispatcher_service_id, lcore_id, 0); + TEST_ASSERT_SUCCESS(rc, "Unable to unmap event dispatcher service"); + + rc = rte_service_lcore_del(lcore_id); + TEST_ASSERT_SUCCESS(rc, "Unable change role of service lcore %d", + lcore_id); + + return TEST_SUCCESS; +} + +static int +test_app_teardown_service_cores(struct test_app *app) +{ + int i; + + for (i = 0; i < NUM_SERVICE_CORES; i++) { + unsigned int lcore_id = app->service_lcores[i]; + int rc; + + rc = test_app_teardown_service_core(app, lcore_id); + + RETURN_ON_ERROR(rc); + } + + return TEST_SUCCESS; +} + +static int +test_app_start_service_cores(struct test_app *app) +{ + int i; + + for (i = 0; i < NUM_SERVICE_CORES; i++) { + unsigned int lcore_id = app->service_lcores[i]; + int rc; + + rc = rte_service_lcore_start(lcore_id); + TEST_ASSERT_SUCCESS(rc, "Unable to start service lcore %d", + lcore_id); + + RETURN_ON_ERROR(rc); + } + + return TEST_SUCCESS; +} + +static int +test_app_stop_service_cores(struct test_app *app) +{ + int i; + + for (i = 0; i < NUM_SERVICE_CORES; i++) { + unsigned int lcore_id = app->service_lcores[i]; + int rc; + + rc = rte_service_lcore_stop(lcore_id); + TEST_ASSERT_SUCCESS(rc, "Unable to stop service lcore %d", + lcore_id); + + RETURN_ON_ERROR(rc); + } + + return TEST_SUCCESS; +} + +static int +test_app_start(struct test_app *app) +{ + int rc; + + rc = test_app_start_event_dev(app); + RETURN_ON_ERROR(rc); + + rc = test_app_start_service_cores(app); + RETURN_ON_ERROR(rc); + + rc = test_app_start_dispatcher(app); + + app->running = true; + + return rc; +} + +static int +test_app_stop(struct test_app *app) +{ + int rc; + + rc = test_app_stop_dispatcher(app); + RETURN_ON_ERROR(rc); + + test_app_stop_service_cores(app); + RETURN_ON_ERROR(rc); + + test_app_stop_event_dev(app); + RETURN_ON_ERROR(rc); + + app->running = false; + + return TEST_SUCCESS; +} + +struct test_app *test_app; + +static int +test_setup(void) +{ + int rc; + + test_app = test_app_create(); + TEST_ASSERT(test_app != NULL, "Unable to allocate memory"); + + rc = test_app_setup_event_dev(test_app); + RETURN_ON_ERROR(rc); + + rc = test_app_create_dispatcher(test_app); + + rc = test_app_setup_service_cores(test_app); + RETURN_ON_ERROR(rc); + + rc = test_app_register_callbacks(test_app); + RETURN_ON_ERROR(rc); + + rc = test_app_bind_ports(test_app); + + return rc; +} + +static void test_teardown(void) +{ + if (test_app->running) + test_app_stop(test_app); + + test_app_teardown_service_cores(test_app); + + test_app_unregister_callbacks(test_app); + + test_app_unbind_ports(test_app); + + test_app_free_dispatcher(test_app); + + test_app_teardown_event_dev(test_app); + + test_app_free(test_app); + + test_app = NULL; +} + +static int +test_app_get_completed_events(struct test_app *app) +{ + return atomic_load_explicit(&app->completed_events, + memory_order_relaxed); +} + +static int +test_app_get_errors(struct test_app *app) +{ + return atomic_load_explicit(&app->errors, memory_order_relaxed); +} + +static int +test_basic(void) +{ + int rc; + int i; + + rc = test_app_start(test_app); + RETURN_ON_ERROR(rc); + + uint64_t sns[NUM_FLOWS] = { 0 }; + + for (i = 0; i < NUM_EVENTS;) { + struct rte_event events[ENQUEUE_BURST_SIZE]; + int left; + int batch_size; + int j; + uint16_t n = 0; + + batch_size = 1 + rte_rand_max(ENQUEUE_BURST_SIZE); + left = NUM_EVENTS - i; + + batch_size = RTE_MIN(left, batch_size); + + for (j = 0; j < batch_size; j++) { + struct rte_event *event = &events[j]; + uint64_t sn; + uint32_t flow_id; + + flow_id = rte_rand_max(NUM_FLOWS); + + sn = sns[flow_id]++; + + *event = (struct rte_event) { + .queue_id = 0, + .flow_id = flow_id, + .sched_type = RTE_SCHED_TYPE_ATOMIC, + .op = RTE_EVENT_OP_NEW, + .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, + .u64 = sn + }; + } + + while (n < batch_size) + n += rte_event_enqueue_new_burst(test_app->event_dev_id, + DRIVER_PORT_ID, + events + n, + batch_size - n); + + i += batch_size; + } + + while (test_app_get_completed_events(test_app) != NUM_EVENTS) + rte_event_maintain(test_app->event_dev_id, DRIVER_PORT_ID, 0); + + rc = test_app_get_errors(test_app); + TEST_ASSERT(rc == 0, "%d errors occurred", rc); + + rc = test_app_stop(test_app); + RETURN_ON_ERROR(rc); + + struct rte_dispatcher_stats stats; + rc = rte_dispatcher_stats_get(test_app->dispatcher_id, + &stats); + + TEST_ASSERT_EQUAL(stats.ev_drop_count, 0, "Drop count is not zero"); + TEST_ASSERT_EQUAL(stats.ev_dispatch_count, NUM_EVENTS * NUM_QUEUES, + "Invalid dispatch count"); + TEST_ASSERT(stats.poll_count > 0, "Poll count is zero"); + + TEST_ASSERT_EQUAL(test_app->never_process_count.count, 0, + "Never-match handler's process function has " + "been called"); + + int finalize_count = + atomic_load_explicit(&test_app->finalize_count.count, + memory_order_relaxed); + + TEST_ASSERT(finalize_count > 0, "Finalize count is zero"); + TEST_ASSERT(finalize_count <= (int)stats.ev_dispatch_count, + "Finalize count larger than event count"); + + TEST_ASSERT_EQUAL(finalize_count, (int)stats.ev_batch_count, + "%"PRIu64" batches dequeued, but finalize called %d " + "times", stats.ev_batch_count, finalize_count); + + /* + * The event dispatcher should call often-matching match functions + * more often, and thus this never-matching match function should + * be called relatively infrequently. + */ + TEST_ASSERT(test_app->never_match_count < + (stats.ev_dispatch_count / 4), + "Never-matching match function called suspiciously often"); + + rc = test_app_reset_dispatcher_stats(test_app); + RETURN_ON_ERROR(rc); + + return TEST_SUCCESS; +} + +static int +test_drop(void) +{ + int rc; + uint8_t unhandled_queue; + struct rte_dispatcher_stats stats; + + unhandled_queue = (uint8_t)rte_rand_max(NUM_QUEUES); + + rc = test_app_start(test_app); + RETURN_ON_ERROR(rc); + + rc = test_app_unregister_callback(test_app, unhandled_queue); + RETURN_ON_ERROR(rc); + + struct rte_event event = { + .queue_id = unhandled_queue, + .flow_id = 0, + .sched_type = RTE_SCHED_TYPE_ATOMIC, + .op = RTE_EVENT_OP_NEW, + .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, + .u64 = 0 + }; + + do { + rc = rte_event_enqueue_burst(test_app->event_dev_id, + DRIVER_PORT_ID, &event, 1); + } while (rc == 0); + + do { + rc = rte_dispatcher_stats_get(test_app->dispatcher_id, + &stats); + RETURN_ON_ERROR(rc); + + rte_event_maintain(test_app->event_dev_id, DRIVER_PORT_ID, 0); + } while (stats.ev_drop_count == 0 && stats.ev_dispatch_count == 0); + + rc = test_app_stop(test_app); + RETURN_ON_ERROR(rc); + + TEST_ASSERT_EQUAL(stats.ev_drop_count, 1, "Drop count is not one"); + TEST_ASSERT_EQUAL(stats.ev_dispatch_count, 0, + "Dispatch count is not zero"); + TEST_ASSERT(stats.poll_count > 0, "Poll count is zero"); + + return TEST_SUCCESS; +} + +#define MORE_THAN_MAX_HANDLERS 1000 +#define MIN_HANDLERS 32 + +static int +test_many_handler_registrations(void) +{ + int rc; + int num_regs = 0; + int reg_ids[MORE_THAN_MAX_HANDLERS]; + int reg_id; + int i; + + rc = test_app_unregister_callbacks(test_app); + + RETURN_ON_ERROR(rc); + + for (i = 0; i < MORE_THAN_MAX_HANDLERS; i++) { + reg_id = rte_dispatcher_register(test_app->dispatcher_id, + never_match, NULL, + test_app_never_process, + NULL); + if (reg_id < 0) + break; + + reg_ids[num_regs++] = reg_id; + } + + TEST_ASSERT_EQUAL(reg_id, -ENOMEM, "Incorrect return code. Expected " + "%d but was %d", -ENOMEM, reg_id); + TEST_ASSERT(num_regs >= MIN_HANDLERS, "Registration failed already " + "after %d handler registrations.", num_regs); + + for (i = 0; i < num_regs; i++) { + rc = rte_dispatcher_unregister(test_app->dispatcher_id, + reg_ids[i]); + TEST_ASSERT_SUCCESS(rc, "Unable to unregister handler %d", + reg_ids[i]); + } + + return TEST_SUCCESS; +} + +static void +dummy_finalize(uint8_t event_dev_id __rte_unused, + uint8_t event_port_id __rte_unused, + void *cb_data __rte_unused) +{ +} + +#define MORE_THAN_MAX_FINALIZERS 1000 +#define MIN_FINALIZERS 16 + +static int +test_many_finalize_registrations(void) +{ + int rc; + int num_regs = 0; + int reg_ids[MORE_THAN_MAX_FINALIZERS]; + int reg_id; + int i; + + rc = test_app_unregister_callbacks(test_app); + + RETURN_ON_ERROR(rc); + + for (i = 0; i < MORE_THAN_MAX_FINALIZERS; i++) { + reg_id = rte_dispatcher_finalize_register( + test_app->dispatcher_id, dummy_finalize, NULL + ); + + if (reg_id < 0) + break; + + reg_ids[num_regs++] = reg_id; + } + + TEST_ASSERT_EQUAL(reg_id, -ENOMEM, "Incorrect return code. Expected " + "%d but was %d", -ENOMEM, reg_id); + TEST_ASSERT(num_regs >= MIN_FINALIZERS, "Finalize registration failed " + "already after %d registrations.", num_regs); + + for (i = 0; i < num_regs; i++) { + rc = rte_dispatcher_finalize_unregister( + test_app->dispatcher_id, reg_ids[i] + ); + TEST_ASSERT_SUCCESS(rc, "Unable to unregister finalizer %d", + reg_ids[i]); + } + + return TEST_SUCCESS; +} + +static struct unit_test_suite test_suite = { + .suite_name = "Event dispatcher test suite", + .unit_test_cases = { + TEST_CASE_ST(test_setup, test_teardown, test_basic), + TEST_CASE_ST(test_setup, test_teardown, test_drop), + TEST_CASE_ST(test_setup, test_teardown, + test_many_handler_registrations), + TEST_CASE_ST(test_setup, test_teardown, + test_many_finalize_registrations), + TEST_CASES_END() + } +}; + +static int +test_dispatcher(void) +{ + return unit_test_suite_runner(&test_suite); +} + +REGISTER_TEST_COMMAND(dispatcher_autotest, test_dispatcher); -- 2.34.1