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From: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
To: shuah@kernel.org, skhan@linuxfoundation.org,
	linux-kselftest@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	tony.luck@intel.com, reinette.chatre@intel.com,
	babu.moger@amd.com, james.morse@arm.com,
	ravi.v.shankar@intel.com, fenghua.yu@intel.com, x86@kernel.org,
	linux-kernel@vger.kernel, dan.carpenter@oracle.com,
	dcb314@hotmail.com,
	Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Subject: [PATCH V2 14/19] selftests/resctrl: Skip the test if requested resctrl feature is not supported
Date: Mon, 18 May 2020 15:08:34 -0700	[thread overview]
Message-ID: <485f834d4f1188056b306263d800bffbc0c43430.1589835155.git.sai.praneeth.prakhya@intel.com> (raw)
In-Reply-To: <cover.1589835155.git.sai.praneeth.prakhya@intel.com>

Presently, if a requested resctrl feature is not supported by H/W or is
disabled by user through kernel command line, the test suite treats it as
an error and hence would print something like "not ok MBA: schemata
change". But, not supporting a feature isn't a test error and hence
shouldn't printed as a failure.

So, instead of treating it as an error, use the SKIP directive of TAP
protocol and print it as below i.e. don't report it as test failure.

Sample o/p if CAT isn't supported:
"ok CAT # SKIP Hardware does not support CAT or CAT is disabled"

Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
---
 tools/testing/selftests/resctrl/cat_test.c    |  3 ---
 tools/testing/selftests/resctrl/cmt_test.c    |  3 ---
 tools/testing/selftests/resctrl/mba_test.c    |  3 ---
 tools/testing/selftests/resctrl/mbm_test.c    |  3 ---
 .../testing/selftests/resctrl/resctrl_tests.c | 19 +++++++++++++++++++
 5 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 1bce84e23783..a18a37ce626c 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -132,9 +132,6 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type)
 	if (ret)
 		return ret;
 
-	if (!validate_resctrl_feature_request("cat"))
-		return -1;
-
 	/* Get default cbm mask for L3/L2 cache */
 	ret = get_cbm_mask(cache_type);
 	if (ret)
diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c
index 282ba7fcf17c..119ae65abec7 100644
--- a/tools/testing/selftests/resctrl/cmt_test.c
+++ b/tools/testing/selftests/resctrl/cmt_test.c
@@ -122,9 +122,6 @@ int cmt_resctrl_val(int cpu_no, int n, char **benchmark_cmd)
 	if (ret)
 		return ret;
 
-	if (!validate_resctrl_feature_request("cmt"))
-		return -1;
-
 	ret = get_cbm_mask("L3");
 	if (ret)
 		return ret;
diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
index ba0234d4829e..6f09d46a5424 100644
--- a/tools/testing/selftests/resctrl/mba_test.c
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -156,9 +156,6 @@ int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd)
 
 	remove(RESULT_FILE_NAME);
 
-	if (!validate_resctrl_feature_request("mba"))
-		return -1;
-
 	ret = resctrl_val(benchmark_cmd, &param);
 	if (ret)
 		return ret;
diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
index ca610c3ebc8c..cb3113cb3b10 100644
--- a/tools/testing/selftests/resctrl/mbm_test.c
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -129,9 +129,6 @@ int mbm_bw_change(int span, int cpu_no, char *bw_report, char **benchmark_cmd)
 
 	remove(RESULT_FILE_NAME);
 
-	if (!validate_resctrl_feature_request("mbm"))
-		return -1;
-
 	ret = resctrl_val(benchmark_cmd, &param);
 	if (ret)
 		return ret;
diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index fb7703413be7..d45ae004ed77 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -170,6 +170,10 @@ int main(int argc, char **argv)
 
 	if (!is_amd && mbm_test) {
 		printf("# Starting MBM BW change ...\n");
+		if (!validate_resctrl_feature_request("mbm")) {
+			printf("ok MBM # SKIP Hardware does not support MBM or MBM is disabled\n");
+			goto test_mba;
+		}
 		if (!has_ben)
 			sprintf(benchmark_cmd[5], "%s", "mba");
 		res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
@@ -178,8 +182,13 @@ int main(int argc, char **argv)
 		tests_run++;
 	}
 
+test_mba:
 	if (!is_amd && mba_test) {
 		printf("# Starting MBA Schemata change ...\n");
+		if (!validate_resctrl_feature_request("mba")) {
+			printf("ok MBA # SKIP Hardware does not support MBA or MBA is disabled\n");
+			goto test_cmt;
+		}
 		if (!has_ben)
 			sprintf(benchmark_cmd[1], "%d", span);
 		res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
@@ -188,8 +197,13 @@ int main(int argc, char **argv)
 		tests_run++;
 	}
 
+test_cmt:
 	if (cmt_test) {
 		printf("# Starting CMT test ...\n");
+		if (!validate_resctrl_feature_request("cmt")) {
+			printf("ok CMT # SKIP Hardware does not support CMT or CMT is disabled\n");
+			goto test_cat;
+		}
 		if (!has_ben)
 			sprintf(benchmark_cmd[5], "%s", "cmt");
 		res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd);
@@ -198,8 +212,13 @@ int main(int argc, char **argv)
 		tests_run++;
 	}
 
+test_cat:
 	if (cat_test) {
 		printf("# Starting CAT test ...\n");
+		if (!validate_resctrl_feature_request("cat")) {
+			printf("ok CAT # SKIP Hardware does not support CAT or CAT is disabled\n");
+			goto out;
+		}
 		res = cat_perf_miss_val(cpu_no, no_of_bits, "L3");
 		printf("%sok CAT: test\n", res ? "not " : "");
 		tests_run++;
-- 
2.19.1


  parent reply	other threads:[~2020-05-18 22:14 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 22:08 [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 01/19] selftests/resctrl: Rename CQM test as CMT test Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 02/19] selftests/resctrl: Fix typo Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 03/19] selftests/resctrl: Fix typo in help text Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 04/19] selftests/resctrl: Declare global variables as extern Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 05/19] selftests/resctrl: Return if resctrl file system is not supported Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 06/19] selftests/resctrl: Check for resctrl mount point only if resctrl FS is supported Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 07/19] selftests/resctrl: Use resctrl/info for feature detection Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 08/19] selftests/resctrl: Ensure sibling CPU is not same as original CPU Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 09/19] selftests/resctrl: Fix missing options "-n" and "-p" Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 10/19] selftests/resctrl: Fix MBA/MBM results reporting format Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 11/19] selftests/resctrl: Abort running tests if not root user Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 12/19] selftests/resctrl: Enable gcc checks to detect buffer overflows Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 13/19] selftests/resctrl: Dynamically select buffer size for CAT test Sai Praneeth Prakhya
2020-05-18 22:08 ` Sai Praneeth Prakhya [this message]
2020-05-20 23:46   ` [PATCH V2 14/19] selftests/resctrl: Skip the test if requested resctrl feature is not supported Reinette Chatre
2020-05-21 17:12     ` Prakhya, Sai Praneeth
2020-05-18 22:08 ` [PATCH V2 15/19] selftests/resctrl: Change return type of umount_resctrlfs() to void Sai Praneeth Prakhya
2020-05-20 23:52   ` Reinette Chatre
2020-05-21 17:19     ` Prakhya, Sai Praneeth
2020-05-21 18:15       ` Reinette Chatre
2020-05-18 22:08 ` [PATCH V2 16/19] selftests/resctrl: Umount resctrl FS only if mounted Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 17/19] selftests/resctrl: Unmount resctrl FS after running all tests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 18/19] selftests/resctrl: Fix incorrect parsing of iMC counters Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 19/19] selftests/resctrl: Fix checking for < 0 for unsigned values Sai Praneeth Prakhya
2020-05-21 16:12 ` [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Reinette Chatre
2020-05-21 17:28   ` Prakhya, Sai Praneeth

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