[dpdk-dev] [PATCH v6 19/23] test: exercise event timer arm and expiry

[Erik Gabriel Carrillo]

Add a test that creates an event timer and detects the generation of a
timer expiry event being scheduled through the software event device.

Signed-off-by: Erik Gabriel Carrillo <erik.g.carrillo at intel.com>
---
 test/test/test_event_timer_adapter.c | 106 +++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)

diff --git a/test/test/test_event_timer_adapter.c b/test/test/test_event_timer_adapter.c
index 58cbaba..3a16cce 100644
--- a/test/test/test_event_timer_adapter.c
+++ b/test/test/test_event_timer_adapter.c
@@ -319,6 +319,111 @@ adapter_start_stop(void)
 	return TEST_SUCCESS;
 }
 
+#define BATCH_SIZE 16
+static int
+event_timer_expiry(void)
+{
+	uint16_t n;
+	uint32_t evdev_service_id, adapter_service_id;
+	int ret;
+	struct rte_event_timer_adapter *adapter = g_adapter;
+	struct rte_event_timer *evtim = NULL;
+	struct rte_event_timer *evtim2 = NULL;
+	struct rte_event evs[BATCH_SIZE];
+
+	TEST_ASSERT_SUCCESS(rte_event_dev_service_id_get(evdev,
+					&evdev_service_id), "Failed to get "
+					"event device service id");
+
+	TEST_ASSERT(rte_service_lcore_count() > 0, "Need one or more service "
+		    "cores to perform this test");
+
+	TEST_ASSERT_SUCCESS(rte_event_timer_adapter_service_id_get(g_adapter,
+					&adapter_service_id), "Failed to get "
+					"event timer adapter service id");
+
+	/* Could map using service_id, but just do default mapping */
+	ret = rte_service_start_with_defaults();
+	TEST_ASSERT_SUCCESS(ret, "Failed to start services");
+
+	if (rte_event_dev_start(evdev) < 0) {
+		printf("Failed to start event device\n");
+		return TEST_FAILED;
+	}
+
+	ret = rte_event_timer_adapter_start(adapter);
+	if (ret < 0) {
+		printf("Failed to start adapter\n");
+		return TEST_FAILED;
+	}
+
+	/* Set up an event timer */
+	rte_mempool_get(g_event_timer_pool, (void **)&evtim);
+	if (evtim == NULL) {
+		/* Failed to get an event timer object */
+		return TEST_FAILED;
+	}
+
+	rte_event_timer_init(evtim);
+
+	evtim->ev.event_ptr = evtim;
+	evtim->ev.queue_id = TEST_QUEUE_ID;
+	evtim->ev.sched_type = RTE_SCHED_TYPE_ATOMIC;
+	evtim->timeout_ticks = 30;  // expire in 3 sec
+
+	ret = rte_event_timer_arm_burst(adapter, &evtim, 1);
+	if (ret != 1) {
+		printf("Failed to arm event timer: %s\n",
+		       rte_strerror(rte_errno));
+		return TEST_FAILED;
+	}
+
+	rte_delay_ms(2999);
+
+	n = rte_event_dequeue_burst(evdev, TEST_PORT_ID, evs, RTE_DIM(evs), 0);
+	TEST_ASSERT_EQUAL(n, 0, "Dequeued unexpected timer expiry event");
+
+	/* Delay 1 more millisecond and run the services again - should let us
+	 * dequeue one event
+	 */
+	rte_delay_ms(1);
+
+	n = rte_event_dequeue_burst(evdev, TEST_PORT_ID, evs, RTE_DIM(evs), 0);
+	if (n == 0) {
+		printf("Failed to dequeue timer expiry event\n");
+		return TEST_FAILED;
+	}
+
+	if (n > 1) {
+		printf("Dequeued incorrect number (%d) of timer expiry "
+		       "events\n", n);
+		return TEST_FAILED;
+	}
+
+	if (evs[0].event_type != RTE_EVENT_TYPE_TIMER) {
+		printf("Dequeued unexpected type of event\n");
+		return TEST_FAILED;
+	}
+
+	/* Check that we recover the original event timer and then free it */
+	evtim2 = evs[0].event_ptr;
+	TEST_ASSERT_EQUAL(evtim, evtim2,
+			  "Failed to recover pointer to original event timer");
+	rte_mempool_put(g_event_timer_pool, evtim2);
+
+	ret = rte_event_timer_adapter_stop(adapter);
+	if (ret < 0) {
+		printf("Failed to stop event adapter\n");
+		return TEST_FAILED;
+	}
+
+	rte_event_dev_stop(evdev);
+
+	rte_service_lcore_reset_all();
+
+	return TEST_SUCCESS;
+}
+
 static struct unit_test_suite adapter_tests  = {
 	.suite_name = "event timer adapter test suite",
 	.setup = testsuite_setup,
@@ -326,6 +431,7 @@ static struct unit_test_suite adapter_tests  = {
 	.unit_test_cases = {
 		TEST_CASE(adapter_create_free),
 		TEST_CASE_ST(adapter_create, adapter_free, adapter_start_stop),
+		TEST_CASE_ST(adapter_create, adapter_free, event_timer_expiry),
 		TEST_CASES_END() /**< NULL terminate unit test array */
 	}
 };
-- 
2.6.4