[dpdk-dev] [PATCH v2 2/2] test/service: add test for service active on two lcores

[Andrew Rybchenko <arybchenko@solarflare.com>]

From: Igor Romanov <igor.romanov@oktetlabs.ru>

The test checks that the service may be active API works
when there are two cores: a non-service lcore and a service one.

The API notes to take care when checking the status of a running
service, but the test setup allows for a safe usage in that case.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
 app/test/test_service_cores.c | 50 +++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/app/test/test_service_cores.c b/app/test/test_service_cores.c
index 981e212130..80dc80ff9c 100644
--- a/app/test/test_service_cores.c
+++ b/app/test/test_service_cores.c
@@ -910,6 +910,55 @@ service_may_be_active(void)
 	return unregister_all();
 }
 
+/* check service may be active when service is running on a second lcore */
+static int
+service_active_two_cores(void)
+{
+	const uint32_t sid = 0;
+	int i;
+
+	uint32_t lcore = rte_get_next_lcore(/* start core */ -1,
+					    /* skip master */ 1,
+					    /* wrap */ 0);
+	uint32_t slcore = rte_get_next_lcore(/* start core */ lcore,
+					     /* skip master */ 1,
+					     /* wrap */ 0);
+
+	/* start the service on the second available lcore */
+	TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 1),
+			"Starting valid service failed");
+	TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore),
+			"Add service core failed when not in use before");
+	TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore, 1),
+			"Enabling valid service on valid core failed");
+	TEST_ASSERT_EQUAL(0, rte_service_lcore_start(slcore),
+			"Service core start after add failed");
+
+	/* ensures core really is running the service function */
+	TEST_ASSERT_EQUAL(1, service_lcore_running_check(),
+			"Service core expected to poll service but it didn't");
+
+	/* ensures that service may be active reports running state */
+	TEST_ASSERT_EQUAL(1, rte_service_may_be_active(sid),
+			"Service may be active did not report running state");
+
+	/* stop the service */
+	TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
+			"Error: Service stop returned non-zero");
+
+	/* give the service 100ms to stop running */
+	for (i = 0; i < 100; i++) {
+		if (!rte_service_may_be_active(sid))
+			break;
+		rte_delay_ms(SERVICE_DELAY);
+	}
+
+	TEST_ASSERT_EQUAL(0, rte_service_may_be_active(sid),
+			  "Error: Service not stopped after 100ms");
+
+	return unregister_all();
+}
+
 static struct unit_test_suite service_tests  = {
 	.suite_name = "service core test suite",
 	.setup = testsuite_setup,
@@ -931,6 +980,7 @@ static struct unit_test_suite service_tests  = {
 		TEST_CASE_ST(dummy_register, NULL, service_app_lcore_mt_safe),
 		TEST_CASE_ST(dummy_register, NULL, service_app_lcore_mt_unsafe),
 		TEST_CASE_ST(dummy_register, NULL, service_may_be_active),
+		TEST_CASE_ST(dummy_register, NULL, service_active_two_cores),
 		TEST_CASES_END() /**< NULL terminate unit test array */
 	}
 };
-- 
2.17.1