On Thu, 25 Jan 2024, Maciej Wieczor-Retman wrote:
validate_resctrl_feature_request() is used to test both if a resource is present in the info directory, and if a passed monitoring feature is present in the mon_features file.
Refactor validate_resctrl_feature_request() into two smaller functions that each accomplish one check to give feature checking more granularity:
- Resource directory presence in the /sys/fs/resctrl/info directory.
- Feature name presence in the /sys/fs/resctrl/info/L3_MON/mon_features file.
Signed-off-by: Maciej Wieczor-Retman maciej.wieczor-retman@intel.com
Changelog v3:
- Move new function to a separate patch. (Reinette)
- Rewrite resctrl_mon_feature_exists() only for L3_MON.
Changelog v2:
- Add this patch.
tools/testing/selftests/resctrl/cmt_test.c | 4 +-- tools/testing/selftests/resctrl/mba_test.c | 4 +-- tools/testing/selftests/resctrl/mbm_test.c | 6 ++-- tools/testing/selftests/resctrl/resctrl.h | 3 +- tools/testing/selftests/resctrl/resctrlfs.c | 33 +++++++++++++-------- 5 files changed, 30 insertions(+), 20 deletions(-)
diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c index dd5ca343c469..428de9df81c8 100644 --- a/tools/testing/selftests/resctrl/cmt_test.c +++ b/tools/testing/selftests/resctrl/cmt_test.c @@ -169,8 +169,8 @@ static int cmt_run_test(const struct resctrl_test *test, const struct user_param static bool cmt_feature_check(const struct resctrl_test *test) {
- return test_resource_feature_check(test) &&
validate_resctrl_feature_request("L3_MON", "llc_occupancy");
- return resctrl_mon_feature_exists("llc_occupancy") &&
resctrl_resource_exists("L3");} struct resctrl_test cmt_test = { diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c index da256d2dbe5c..e22285b80e37 100644 --- a/tools/testing/selftests/resctrl/mba_test.c +++ b/tools/testing/selftests/resctrl/mba_test.c @@ -170,8 +170,8 @@ static int mba_run_test(const struct resctrl_test *test, const struct user_param static bool mba_feature_check(const struct resctrl_test *test) {
- return test_resource_feature_check(test) &&
validate_resctrl_feature_request("L3_MON", "mbm_local_bytes");
- return resctrl_resource_exists(test->resource) &&
I don't understand what's the advantage of converting away from test_resource_feature_check() in CMT and MBA case?
resctrl_mon_feature_exists("mbm_local_bytes");}
@@ -756,7 +765,7 @@ bool validate_resctrl_feature_request(const char *resource, const char *feature) bool test_resource_feature_check(const struct resctrl_test *test) {
- return validate_resctrl_feature_request(test->resource, NULL);
- return resctrl_resource_exists(test->resource);
...The replacement in MBA open coded test_resource_feature_check() 100% and CMT even replaces the test->resource with the string matching to what's in test->resource?