@@ -362,6 +362,9 @@ service_lcore_attr_get(void)
"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");
+ /* Ensure service is not active before starting */
+ TEST_ASSERT_EQUAL(0, rte_service_lcore_may_be_active(slcore_id),
+ "Not-active service core reported as active");
TEST_ASSERT_EQUAL(0, rte_service_lcore_start(slcore_id),
"Starting service core failed");
@@ -382,7 +385,22 @@ service_lcore_attr_get(void)
lcore_attr_id, &lcore_attr_value),
"Invalid lcore attr didn't return -EINVAL");
- rte_service_lcore_stop(slcore_id);
+ /* Ensure service is active */
+ TEST_ASSERT_EQUAL(1, rte_service_lcore_may_be_active(slcore_id),
+ "Active service core reported as not-active");
+
+ TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(id, slcore_id, 0),
+ "Disabling valid service and core failed");
+ TEST_ASSERT_EQUAL(0, rte_service_lcore_stop(slcore_id),
+ "Failed to stop service lcore");
+
+ /* Wait until service lcore not active, or for 100x SERVICE_DELAY */
+ for (int i = 0; rte_service_lcore_may_be_active(slcore_id) == 1 &&
+ i < 100; i++)
+ rte_delay_ms(SERVICE_DELAY);
+
+ TEST_ASSERT_EQUAL(0, rte_service_lcore_may_be_active(slcore_id),
+ "Service lcore not stopped after waiting.");
TEST_ASSERT_EQUAL(0, rte_service_lcore_attr_reset_all(slcore_id),
"Valid lcore_attr_reset_all() didn't return success");
This commit fixes a potential race condition in the tests where the lcore running a service would increment a counter that was already reset by the test-suite thread. The resulting race-condition incremented value could cause CI failures, as indicated by DPDK's CI. This patch fixes the race-condition by making use of the added rte_service_lcore_active() API, which indicates when a service-core is no longer in the service-core polling loop. The unit test makes use of the above function to detect when all statistics increments are done in the service-core thread, and then the unit test continues finalizing and checking state. Fixes: f28f3594ded2 ("service: add attribute API") Reported-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com> Reviewed-by: Phil Yang <phil.yang@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> --- v4: - Update test to new _may_be_ style API (Honnappa) - Add reviewed by from ML v3: - Refactor while() to for() to simplify (Harry) - Use SERVICE_DELAY instead of magic const 1 (Phil) - Add Phil's reviewed by tag from ML v2: Thanks for discussion on v1, this v2 fixup for the CI including previous feedback on ML. --- app/test/test_service_cores.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)