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Message-Id: <20240702101259.1251377-1-usama.anjum@collabora.com>
Date: Tue, 2 Jul 2024 15:12:52 +0500
From: Muhammad Usama Anjum <usama.anjum@...labora.com>
To: srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
Shuah Khan <shuah@...nel.org>,
Muhammad Usama Anjum <usama.anjum@...labora.com>
Cc: kernel@...labora.com,
linux-kselftest@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] selftests/thermel/intel: conform the test to TAP output
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
The test has infitie loop to read the value of index_str. Break the loop
after successfully reading the value once and finished the test.
Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
---
Changes since v1:
- Use ksft_exit_fail_perror if read() returns error
- Break the infinite loop after printing index_str
---
.../intel/workload_hint/workload_hint_test.c | 103 ++++++++----------
1 file changed, 43 insertions(+), 60 deletions(-)
diff --git a/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
index 217c3a641c537..0e5f07efc8a2b 100644
--- a/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
+++ b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
@@ -9,6 +9,7 @@
#include <fcntl.h>
#include <poll.h>
#include <signal.h>
+#include "../../../kselftest.h"
#define WORKLOAD_NOTIFICATION_DELAY_ATTRIBUTE "/sys/bus/pci/devices/0000:00:04.0/workload_hint/notification_delay_ms"
#define WORKLOAD_ENABLE_ATTRIBUTE "/sys/bus/pci/devices/0000:00:04.0/workload_hint/workload_hint_enable"
@@ -31,17 +32,13 @@ void workload_hint_exit(int signum)
/* Disable feature via sysfs knob */
fd = open(WORKLOAD_ENABLE_ATTRIBUTE, O_RDWR);
- if (fd < 0) {
- perror("Unable to open workload type feature enable file\n");
- exit(1);
- }
+ if (fd < 0)
+ ksft_exit_fail_perror("Unable to open workload type feature enable file");
- if (write(fd, "0\n", 2) < 0) {
- perror("Can' disable workload hints\n");
- exit(1);
- }
+ if (write(fd, "0\n", 2) < 0)
+ ksft_exit_fail_perror("Can' disable workload hints");
- printf("Disabled workload type prediction\n");
+ ksft_print_msg("Disabled workload type prediction\n");
close(fd);
}
@@ -54,32 +51,27 @@ int main(int argc, char **argv)
char delay_str[64];
int delay = 0;
- printf("Usage: workload_hint_test [notification delay in milli seconds]\n");
+ ksft_print_header();
+ ksft_set_plan(1);
+
+ ksft_print_msg("Usage: workload_hint_test [notification delay in milli seconds]\n");
if (argc > 1) {
ret = sscanf(argv[1], "%d", &delay);
- if (ret < 0) {
- printf("Invalid delay\n");
- exit(1);
- }
+ if (ret < 0)
+ ksft_exit_fail_perror("Invalid delay");
- printf("Setting notification delay to %d ms\n", delay);
+ ksft_print_msg("Setting notification delay to %d ms\n", delay);
if (delay < 0)
- exit(1);
-
- sprintf(delay_str, "%s\n", argv[1]);
+ ksft_exit_fail_msg("delay can never be negative\n");
sprintf(delay_str, "%s\n", argv[1]);
fd = open(WORKLOAD_NOTIFICATION_DELAY_ATTRIBUTE, O_RDWR);
- if (fd < 0) {
- perror("Unable to open workload notification delay\n");
- exit(1);
- }
+ if (fd < 0)
+ ksft_exit_fail_perror("Unable to open workload notification delay");
- if (write(fd, delay_str, strlen(delay_str)) < 0) {
- perror("Can't set delay\n");
- exit(1);
- }
+ if (write(fd, delay_str, strlen(delay_str)) < 0)
+ ksft_exit_fail_perror("Can't set delay");
close(fd);
}
@@ -93,65 +85,56 @@ int main(int argc, char **argv)
/* Enable feature via sysfs knob */
fd = open(WORKLOAD_ENABLE_ATTRIBUTE, O_RDWR);
- if (fd < 0) {
- perror("Unable to open workload type feature enable file\n");
- exit(1);
- }
+ if (fd < 0)
+ ksft_exit_fail_perror("Unable to open workload type feature enable file");
- if (write(fd, "1\n", 2) < 0) {
- perror("Can' enable workload hints\n");
- exit(1);
- }
+ if (write(fd, "1\n", 2) < 0)
+ ksft_exit_fail_perror("Can' enable workload hints");
close(fd);
- printf("Enabled workload type prediction\n");
+ ksft_print_msg("Enabled workload type prediction\n");
while (1) {
fd = open(WORKLOAD_TYPE_INDEX_ATTRIBUTE, O_RDONLY);
- if (fd < 0) {
- perror("Unable to open workload type file\n");
- exit(1);
- }
+ if (fd < 0)
+ ksft_exit_fail_perror("Unable to open workload type file");
- if ((lseek(fd, 0L, SEEK_SET)) < 0) {
- fprintf(stderr, "Failed to set pointer to beginning\n");
- exit(1);
- }
+ if ((lseek(fd, 0L, SEEK_SET)) < 0)
+ ksft_exit_fail_perror("Failed to set pointer to beginning");
- if (read(fd, index_str, sizeof(index_str)) < 0) {
- fprintf(stderr, "Failed to read from:%s\n",
- WORKLOAD_TYPE_INDEX_ATTRIBUTE);
- exit(1);
- }
+ if (read(fd, index_str, sizeof(index_str)) < 0)
+ ksft_exit_fail_perror("Failed to read from: workload_type_index");
ufd.fd = fd;
ufd.events = POLLPRI;
ret = poll(&ufd, 1, -1);
if (ret < 0) {
- perror("poll error");
- exit(1);
+ ksft_exit_fail_perror("poll error");
} else if (ret == 0) {
- printf("Poll Timeout\n");
+ ksft_print_msg("Poll Timeout\n");
} else {
- if ((lseek(fd, 0L, SEEK_SET)) < 0) {
- fprintf(stderr, "Failed to set pointer to beginning\n");
- exit(1);
- }
+ if ((lseek(fd, 0L, SEEK_SET)) < 0)
+ ksft_exit_fail_perror("Failed to set pointer to beginning");
if (read(fd, index_str, sizeof(index_str)) < 0)
- exit(0);
+ ksft_exit_fail_perror("Failed to read");
ret = sscanf(index_str, "%d", &index);
if (ret < 0)
+ ksft_exit_fail_msg("Read negative value unexpectedly\n");
+ if (index > WORKLOAD_TYPE_MAX_INDEX) {
+ ksft_print_msg("Invalid workload type index\n");
+ } else {
+ ksft_print_msg("workload type:%s\n", workload_types[index]);
break;
- if (index > WORKLOAD_TYPE_MAX_INDEX)
- printf("Invalid workload type index\n");
- else
- printf("workload type:%s\n", workload_types[index]);
+ }
}
close(fd);
}
+
+ ksft_test_result_pass("Successfully read\n");
+ ksft_finished();
}
--
2.39.2
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