diff mbox series

[v3,6/7] selftests/resctrl: Fix feature checks

Message ID 20230929112039.7488-7-ilpo.jarvinen@linux.intel.com
State Accepted
Commit 06035f019422ba17e85c11e70d6d8bdbe9fa1afd
Headers show
Series selftests/resctrl: Fixes to failing tests | expand

Commit Message

Ilpo Järvinen Sept. 29, 2023, 11:20 a.m. UTC
The MBA and CMT tests expect support of other features to be able to
run.

When platform only supports MBA but not MBM, MBA test will fail with:
Failed to open total bw file: No such file or directory

When platform only supports CMT but not CAT, CMT test will fail with:
Failed to open bit mask file '/sys/fs/resctrl/info/L3/cbm_mask': No such file or directory

It leads to the test reporting test fail (even if no test was run at
all).

Extend feature checks to cover these two conditions to show these tests
were skipped rather than failed.

Fixes: ee0415681eb6 ("selftests/resctrl: Use resctrl/info for feature detection")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> # selftests/resctrl: Refactor feature check to use resource and feature name
---
 tools/testing/selftests/resctrl/resctrl_tests.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index 7836bf0655fe..063fc3e50e48 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -130,7 +130,9 @@  static void run_mba_test(const char * const *benchmark_cmd, int cpu_no)
 		return;
 	}
 
-	if (!validate_resctrl_feature_request("MB", NULL) || (get_vendor() != ARCH_INTEL)) {
+	if (!validate_resctrl_feature_request("MB", NULL) ||
+	    !validate_resctrl_feature_request("L3_MON", "mbm_local_bytes") ||
+	    (get_vendor() != ARCH_INTEL)) {
 		ksft_test_result_skip("Hardware does not support MBA or MBA is disabled\n");
 		goto cleanup;
 	}
@@ -153,7 +155,8 @@  static void run_cmt_test(const char * const *benchmark_cmd, int cpu_no)
 		return;
 	}
 
-	if (!validate_resctrl_feature_request("L3_MON", "llc_occupancy")) {
+	if (!validate_resctrl_feature_request("L3_MON", "llc_occupancy") ||
+	    !validate_resctrl_feature_request("L3", NULL)) {
 		ksft_test_result_skip("Hardware does not support CMT or CMT is disabled\n");
 		goto cleanup;
 	}