static void cmd_help(void)
{
printf("usage: resctrl_tests [-h] [-b \"benchmark_cmd [options]\"] [-t test list] [-n no_of_bits]\n");
- printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CMT");
- printf("\t default benchmark is builtin fill_buf\n");
+ printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CMT\n");
+ printf("\t default benchmark is builtin fill_buf\n");
printf("\t-t test list: run tests specified in the test list, ");
printf("e.g. -t mbm, mba, cmt, cat\n");
printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n");
cat_test_cleanup();
}
+static void run_mbm_test(bool has_ben, char **benchmark_cmd, int span,
+ int cpu_no, char *bw_report)
+{
+ int res;
+
+ ksft_print_msg("Starting MBM BW change ...\n");
+
+ if (!validate_resctrl_feature_request(MBM_STR)) {
+ ksft_test_result_skip("Hardware does not support MBM or MBM is disabled\n");
+ return;
+ }
+
+ if (!has_ben)
+ sprintf(benchmark_cmd[5], "%s", MBA_STR);
+ res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
+ ksft_test_result(!res, "MBM: bw change\n");
+ mbm_test_cleanup();
+}
+
+static void run_mba_test(bool has_ben, char **benchmark_cmd, int span,
+ int cpu_no, char *bw_report)
+{
+ int res;
+
+ ksft_print_msg("Starting MBA Schemata change ...\n");
+
+ if (!validate_resctrl_feature_request(MBA_STR)) {
+ ksft_test_result_skip("Hardware does not support MBA or MBA is disabled\n");
+ return;
+ }
+
+ if (!has_ben)
+ sprintf(benchmark_cmd[1], "%d", span);
+ res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
+ ksft_test_result(!res, "MBA: schemata change\n");
+ mba_test_cleanup();
+}
+
+static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no)
+{
+ int res;
+
+ ksft_print_msg("Starting CMT test ...\n");
+ if (!validate_resctrl_feature_request(CMT_STR)) {
+ ksft_test_result_skip("Hardware does not support CMT or CMT is disabled\n");
+ return;
+ }
+
+ if (!has_ben)
+ sprintf(benchmark_cmd[5], "%s", CMT_STR);
+ res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd);
+ ksft_test_result(!res, "CMT: test\n");
+ cmt_test_cleanup();
+}
+
+static void run_cat_test(int cpu_no, int no_of_bits)
+{
+ int res;
+
+ ksft_print_msg("Starting CAT test ...\n");
+
+ if (!validate_resctrl_feature_request(CAT_STR)) {
+ ksft_test_result_skip("Hardware does not support CAT or CAT is disabled\n");
+ return;
+ }
+
+ res = cat_perf_miss_val(cpu_no, no_of_bits, "L3");
+ ksft_test_result(!res, "CAT: test\n");
+ cat_test_cleanup();
+}
+
int main(int argc, char **argv)
{
bool has_ben = false, mbm_test = true, mba_test = true, cmt_test = true;
- int res, c, cpu_no = 1, span = 250, argc_new = argc, i, no_of_bits = 5;
+ int c, cpu_no = 1, span = 250, argc_new = argc, i, no_of_bits = 0;
char *benchmark_cmd[BENCHMARK_ARGS], bw_report[64], bm_type[64];
char benchmark_cmd_area[BENCHMARK_ARGS][BENCHMARK_ARG_SIZE];
- int ben_ind, ben_count;
+ int ben_ind, ben_count, tests = 0;
bool cat_test = true;
for (i = 0; i < argc; i++) {
while (token) {
if (!strncmp(token, MBM_STR, sizeof(MBM_STR))) {
mbm_test = true;
+ tests++;
} else if (!strncmp(token, MBA_STR, sizeof(MBA_STR))) {
mba_test = true;
+ tests++;
} else if (!strncmp(token, CMT_STR, sizeof(CMT_STR))) {
cmt_test = true;
+ tests++;
} else if (!strncmp(token, CAT_STR, sizeof(CAT_STR))) {
cat_test = true;
+ tests++;
} else {
printf("invalid argument\n");
break;
case 'n':
no_of_bits = atoi(optarg);
+ if (no_of_bits <= 0) {
+ printf("Bail out! invalid argument for no_of_bits\n");
+ return -1;
+ }
break;
case 'h':
cmd_help();
}
}
- printf("TAP version 13\n");
+ ksft_print_header();
/*
* Typically we need root privileges, because:
* 2. We execute perf commands
*/
if (geteuid() != 0)
- printf("# WARNING: not running as root, tests may fail.\n");
+ return ksft_exit_fail_msg("Not running as root, abort testing.\n");
/* Detect AMD vendor */
detect_amd();
sprintf(bw_report, "reads");
sprintf(bm_type, "fill_buf");
- check_resctrlfs_support();
+ if (!check_resctrlfs_support())
+ return ksft_exit_fail_msg("resctrl FS does not exist\n");
+
filter_dmesg();
- if (!is_amd && mbm_test) {
- printf("# Starting MBM BW change ...\n");
- if (!has_ben)
- sprintf(benchmark_cmd[5], "%s", MBA_STR);
- res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
- printf("%sok MBM: bw change\n", res ? "not " : "");
- mbm_test_cleanup();
- tests_run++;
- }
+ ksft_set_plan(tests ? : 4);
- if (!is_amd && mba_test) {
- printf("# Starting MBA Schemata change ...\n");
- if (!has_ben)
- sprintf(benchmark_cmd[1], "%d", span);
- res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
- printf("%sok MBA: schemata change\n", res ? "not " : "");
- mba_test_cleanup();
- tests_run++;
- }
+ if (!is_amd && mbm_test)
+ run_mbm_test(has_ben, benchmark_cmd, span, cpu_no, bw_report);
- if (cmt_test) {
- printf("# Starting CMT test ...\n");
- if (!has_ben)
- sprintf(benchmark_cmd[5], "%s", CMT_STR);
- res = cmt_resctrl_val(cpu_no, no_of_bits, benchmark_cmd);
- printf("%sok CMT: test\n", res ? "not " : "");
- cmt_test_cleanup();
- tests_run++;
- }
+ if (!is_amd && mba_test)
+ run_mba_test(has_ben, benchmark_cmd, span, cpu_no, bw_report);
- if (cat_test) {
- printf("# Starting CAT test ...\n");
- res = cat_perf_miss_val(cpu_no, no_of_bits, "L3");
- printf("%sok CAT: test\n", res ? "not " : "");
- tests_run++;
- cat_test_cleanup();
- }
+ if (cmt_test)
+ run_cmt_test(has_ben, benchmark_cmd, cpu_no);
- printf("1..%d\n", tests_run);
+ if (cat_test)
+ run_cat_test(cpu_no, no_of_bits);
- return 0;
+ return ksft_exit_pass();
}
projects / linux-2.6-microblaze.git / blobdiff