[PATCH v2 1/2] selftests/thermel/intel: conform the test to TAP output

[PATCH v2 1/2] selftests/thermel/intel: conform the test to TAP output

[Muhammad Usama Anjum]

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@collabora.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

[PATCH v2 2/2] selftests/thermel/intel: conform the test to TAP output

[Muhammad Usama Anjum]

Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.

The test has infinite loop to read the value of status_str. Break the
loop after getting the value once and finish the test.

Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
---
Changes since v1:
- Use ksft_exit_fail_perror if read() returns error
- Break the infinite loop after printing status_str
---
 .../intel/power_floor/power_floor_test.c      | 70 ++++++++-----------
 1 file changed, 30 insertions(+), 40 deletions(-)

diff --git a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.c b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.c
index 0326b39a11b91..c06b275acd36b 100644
--- a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.c
+++ b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.c
@@ -9,6 +9,7 @@
 #include <fcntl.h>
 #include <poll.h>
 #include <signal.h>
+#include "../../../kselftest.h"
 
 #define POWER_FLOOR_ENABLE_ATTRIBUTE "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_enable"
 #define POWER_FLOOR_STATUS_ATTRIBUTE  "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_status"
@@ -20,17 +21,13 @@ void power_floor_exit(int signum)
 	/* Disable feature via sysfs knob */
 
 	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
-	if (fd < 0) {
-		perror("Unable to open power floor enable file\n");
-		exit(1);
-	}
+	if (fd < 0)
+		ksft_exit_fail_perror("Unable to open power floor enable file");
 
-	if (write(fd, "0\n", 2) < 0) {
-		perror("Can' disable power floor notifications\n");
-		exit(1);
-	}
+	if (write(fd, "0\n", 2) < 0)
+		ksft_exit_fail_perror("Can' disable power floor notifications");
 
-	printf("Disabled power floor notifications\n");
+	ksft_print_msg("Disabled power floor notifications\n");
 
 	close(fd);
 }
@@ -41,6 +38,9 @@ int main(int argc, char **argv)
 	char status_str[3];
 	int fd, ret;
 
+	ksft_print_header();
+	ksft_set_plan(1);
+
 	if (signal(SIGINT, power_floor_exit) == SIG_IGN)
 		signal(SIGINT, SIG_IGN);
 	if (signal(SIGHUP, power_floor_exit) == SIG_IGN)
@@ -50,59 +50,49 @@ int main(int argc, char **argv)
 
 	/* Enable feature via sysfs knob */
 	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
-	if (fd < 0) {
-		perror("Unable to open power floor enable file\n");
-		exit(1);
-	}
+	if (fd < 0)
+		ksft_exit_fail_perror("Unable to open power floor enable file");
 
-	if (write(fd, "1\n", 2) < 0) {
-		perror("Can' enable power floor notifications\n");
-		exit(1);
-	}
+	if (write(fd, "1\n", 2) < 0)
+		ksft_exit_fail_perror("Can' enable power floor notifications");
 
 	close(fd);
 
-	printf("Enabled power floor notifications\n");
+	ksft_print_msg("Enabled power floor notifications\n");
 
 	while (1) {
 		fd = open(POWER_FLOOR_STATUS_ATTRIBUTE, O_RDONLY);
-		if (fd < 0) {
-			perror("Unable to power floor status file\n");
-			exit(1);
-		}
+		if (fd < 0)
+			ksft_exit_fail_perror("Unable to power floor status 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\n");
 
-		if (read(fd, status_str, sizeof(status_str)) < 0) {
-			fprintf(stderr, "Failed to read from:%s\n",
-			POWER_FLOOR_STATUS_ATTRIBUTE);
-			exit(1);
-		}
+		if (read(fd, status_str, sizeof(status_str)) < 0)
+			ksft_exit_fail_perror("Failed to read from: power_floor_status");
 
 		ufd.fd = fd;
 		ufd.events = POLLPRI;
 
 		ret = poll(&ufd, 1, -1);
 		if (ret < 0) {
-			perror("poll error");
-			exit(1);
+			ksft_exit_fail_msg("Poll error\n");
 		} 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_msg("Failed to set pointer to beginning\n");
 
 			if (read(fd, status_str, sizeof(status_str)) < 0)
-				exit(0);
+				ksft_exit_fail_perror("Failed to read");
 
-			printf("power floor status: %s\n", status_str);
+			ksft_print_msg("power floor status: %s\n", status_str);
+			break;
 		}
 
 		close(fd);
 	}
+
+	ksft_test_result_pass("Successfully read\n");
+	ksft_finished();
 }
-- 
2.39.2

Re: [PATCH v2 1/2] selftests/thermel/intel: conform the test to TAP output

[srinivas pandruvada]

On Tue, 2024-07-02 at 15:12 +0500, Muhammad Usama Anjum wrote:
> 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
infinite

>  loop to read the value of index_str. Break the loop
> after successfully reading the value once and finished the test.
> 
That is not correct. This loops till SIGINT | SIGTERM | SIGHUP

Anyway this comment is not relevant for what you are doing here.

> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>


Thanks,
Srinivas

> ---
> 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_t
> est.c
> b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_t
> est.c
> index 217c3a641c537..0e5f07efc8a2b 100644
> ---
> a/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_t
> est.c
> +++
> b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_t
> est.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_m
> s"
>  #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();
>  }

Re: [PATCH v2 2/2] selftests/thermel/intel: conform the test to TAP output

[srinivas pandruvada]

On Tue, 2024-07-02 at 15:12 +0500, Muhammad Usama Anjum wrote:
> Conform the layout, informational and status messages to TAP. No
> functional change is intended other than the layout of output
> messages.
> 
Not true. You did functional change by adding a break in the loop.
The purpose here to wait for these message continuously till ctrl-c or
similar.

> The test has infinite loop to read the value of status_str. Break the
> loop after getting the value once and finish the test.
> 
No, that is not the purpose.

> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
> ---
> Changes since v1:
> - Use ksft_exit_fail_perror if read() returns error
> - Break the infinite loop after printing status_str
> ---
>  .../intel/power_floor/power_floor_test.c      | 70 ++++++++---------
> --
>  1 file changed, 30 insertions(+), 40 deletions(-)
> 
> diff --git
> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> index 0326b39a11b91..c06b275acd36b 100644
> ---
> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> +++
> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> @@ -9,6 +9,7 @@
>  #include <fcntl.h>
>  #include <poll.h>
>  #include <signal.h>
> +#include "../../../kselftest.h"
>  
>  #define POWER_FLOOR_ENABLE_ATTRIBUTE
> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_enable"
>  #define POWER_FLOOR_STATUS_ATTRIBUTE 
> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_status"
> @@ -20,17 +21,13 @@ void power_floor_exit(int signum)
>  	/* Disable feature via sysfs knob */
>  
>  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> -	if (fd < 0) {
> -		perror("Unable to open power floor enable file\n");
> -		exit(1);
> -	}
> +	if (fd < 0)
> +		ksft_exit_fail_perror("Unable to open power floor
> enable file");
>  
> -	if (write(fd, "0\n", 2) < 0) {
> -		perror("Can' disable power floor notifications\n");
> -		exit(1);
> -	}
> +	if (write(fd, "0\n", 2) < 0)
> +		ksft_exit_fail_perror("Can' disable power floor
> notifications");
>  
> -	printf("Disabled power floor notifications\n");
> +	ksft_print_msg("Disabled power floor notifications\n");
>  
>  	close(fd);
>  }
> @@ -41,6 +38,9 @@ int main(int argc, char **argv)
>  	char status_str[3];
>  	int fd, ret;
>  
> +	ksft_print_header();
> +	ksft_set_plan(1);
> +
>  	if (signal(SIGINT, power_floor_exit) == SIG_IGN)
>  		signal(SIGINT, SIG_IGN);
>  	if (signal(SIGHUP, power_floor_exit) == SIG_IGN)
> @@ -50,59 +50,49 @@ int main(int argc, char **argv)
>  
>  	/* Enable feature via sysfs knob */
>  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> -	if (fd < 0) {
> -		perror("Unable to open power floor enable file\n");
> -		exit(1);
> -	}
> +	if (fd < 0)
> +		ksft_exit_fail_perror("Unable to open power floor
> enable file");
>  
> -	if (write(fd, "1\n", 2) < 0) {
> -		perror("Can' enable power floor notifications\n");
> -		exit(1);
> -	}
> +	if (write(fd, "1\n", 2) < 0)
> +		ksft_exit_fail_perror("Can' enable power floor
> notifications");
>  
>  	close(fd);
>  
> -	printf("Enabled power floor notifications\n");
> +	ksft_print_msg("Enabled power floor notifications\n");
>  
>  	while (1) {
>  		fd = open(POWER_FLOOR_STATUS_ATTRIBUTE, O_RDONLY);
> -		if (fd < 0) {
> -			perror("Unable to power floor status
> file\n");
> -			exit(1);
> -		}
> +		if (fd < 0)
> +			ksft_exit_fail_perror("Unable to power floor
> status 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\n");
>  
> -		if (read(fd, status_str, sizeof(status_str)) < 0) {
> -			fprintf(stderr, "Failed to read from:%s\n",
> -			POWER_FLOOR_STATUS_ATTRIBUTE);
> -			exit(1);
> -		}
> +		if (read(fd, status_str, sizeof(status_str)) < 0)
> +			ksft_exit_fail_perror("Failed to read from:
> power_floor_status");
>  
>  		ufd.fd = fd;
>  		ufd.events = POLLPRI;
>  
>  		ret = poll(&ufd, 1, -1);
>  		if (ret < 0) {
> -			perror("poll error");
> -			exit(1);
> +			ksft_exit_fail_msg("Poll error\n");
>  		} 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_msg("Failed to set
> pointer to beginning\n");
>  
>  			if (read(fd, status_str, sizeof(status_str))
> < 0)
> -				exit(0);
> +				ksft_exit_fail_perror("Failed to
> read");
>  
> -			printf("power floor status: %s\n",
> status_str);
> +			ksft_print_msg("power floor status: %s\n",
> status_str);
> +			break;
>  		}
>  
>  		close(fd);
>  	}
> +
> +	ksft_test_result_pass("Successfully read\n");
> +	ksft_finished();
>  }

Re: [PATCH v2 2/2] selftests/thermel/intel: conform the test to TAP output

[Muhammad Usama Anjum]

On 7/3/24 9:40 AM, srinivas pandruvada wrote:
> On Tue, 2024-07-02 at 15:12 +0500, Muhammad Usama Anjum wrote:
>> Conform the layout, informational and status messages to TAP. No
>> functional change is intended other than the layout of output
>> messages.
>>
> Not true. You did functional change by adding a break in the loop.
> The purpose here to wait for these message continuously till ctrl-c or
> similar.
I'll correct the description.

> 
>> The test has infinite loop to read the value of status_str. Break the
>> loop after getting the value once and finish the test.
>>
> No, that is not the purpose.
We want to finish the test after some iterations as in CIs we cannot abort
the test by sending signals. Would 10 or 100 iterations be enough for this
test? Or it is the kind of test which wouldn't get events until some other
process is using the same driver files?

> 
>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
>> ---
>> Changes since v1:
>> - Use ksft_exit_fail_perror if read() returns error
>> - Break the infinite loop after printing status_str
>> ---
>>  .../intel/power_floor/power_floor_test.c      | 70 ++++++++---------
>> --
>>  1 file changed, 30 insertions(+), 40 deletions(-)
>>
>> diff --git
>> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
>> c
>> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
>> c
>> index 0326b39a11b91..c06b275acd36b 100644
>> ---
>> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
>> c
>> +++
>> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
>> c
>> @@ -9,6 +9,7 @@
>>  #include <fcntl.h>
>>  #include <poll.h>
>>  #include <signal.h>
>> +#include "../../../kselftest.h"
>>  
>>  #define POWER_FLOOR_ENABLE_ATTRIBUTE
>> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_enable"
>>  #define POWER_FLOOR_STATUS_ATTRIBUTE 
>> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_status"
>> @@ -20,17 +21,13 @@ void power_floor_exit(int signum)
>>  	/* Disable feature via sysfs knob */
>>  
>>  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
>> -	if (fd < 0) {
>> -		perror("Unable to open power floor enable file\n");
>> -		exit(1);
>> -	}
>> +	if (fd < 0)
>> +		ksft_exit_fail_perror("Unable to open power floor
>> enable file");
>>  
>> -	if (write(fd, "0\n", 2) < 0) {
>> -		perror("Can' disable power floor notifications\n");
>> -		exit(1);
>> -	}
>> +	if (write(fd, "0\n", 2) < 0)
>> +		ksft_exit_fail_perror("Can' disable power floor
>> notifications");
>>  
>> -	printf("Disabled power floor notifications\n");
>> +	ksft_print_msg("Disabled power floor notifications\n");
>>  
>>  	close(fd);
>>  }
>> @@ -41,6 +38,9 @@ int main(int argc, char **argv)
>>  	char status_str[3];
>>  	int fd, ret;
>>  
>> +	ksft_print_header();
>> +	ksft_set_plan(1);
>> +
>>  	if (signal(SIGINT, power_floor_exit) == SIG_IGN)
>>  		signal(SIGINT, SIG_IGN);
>>  	if (signal(SIGHUP, power_floor_exit) == SIG_IGN)
>> @@ -50,59 +50,49 @@ int main(int argc, char **argv)
>>  
>>  	/* Enable feature via sysfs knob */
>>  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
>> -	if (fd < 0) {
>> -		perror("Unable to open power floor enable file\n");
>> -		exit(1);
>> -	}
>> +	if (fd < 0)
>> +		ksft_exit_fail_perror("Unable to open power floor
>> enable file");
>>  
>> -	if (write(fd, "1\n", 2) < 0) {
>> -		perror("Can' enable power floor notifications\n");
>> -		exit(1);
>> -	}
>> +	if (write(fd, "1\n", 2) < 0)
>> +		ksft_exit_fail_perror("Can' enable power floor
>> notifications");
>>  
>>  	close(fd);
>>  
>> -	printf("Enabled power floor notifications\n");
>> +	ksft_print_msg("Enabled power floor notifications\n");
>>  
>>  	while (1) {
>>  		fd = open(POWER_FLOOR_STATUS_ATTRIBUTE, O_RDONLY);
>> -		if (fd < 0) {
>> -			perror("Unable to power floor status
>> file\n");
>> -			exit(1);
>> -		}
>> +		if (fd < 0)
>> +			ksft_exit_fail_perror("Unable to power floor
>> status 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\n");
>>  
>> -		if (read(fd, status_str, sizeof(status_str)) < 0) {
>> -			fprintf(stderr, "Failed to read from:%s\n",
>> -			POWER_FLOOR_STATUS_ATTRIBUTE);
>> -			exit(1);
>> -		}
>> +		if (read(fd, status_str, sizeof(status_str)) < 0)
>> +			ksft_exit_fail_perror("Failed to read from:
>> power_floor_status");
>>  
>>  		ufd.fd = fd;
>>  		ufd.events = POLLPRI;
>>  
>>  		ret = poll(&ufd, 1, -1);
>>  		if (ret < 0) {
>> -			perror("poll error");
>> -			exit(1);
>> +			ksft_exit_fail_msg("Poll error\n");
>>  		} 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_msg("Failed to set
>> pointer to beginning\n");
>>  
>>  			if (read(fd, status_str, sizeof(status_str))
>> < 0)
>> -				exit(0);
>> +				ksft_exit_fail_perror("Failed to
>> read");
>>  
>> -			printf("power floor status: %s\n",
>> status_str);
>> +			ksft_print_msg("power floor status: %s\n",
>> status_str);
>> +			break;
>>  		}
>>  
>>  		close(fd);
>>  	}
>> +
>> +	ksft_test_result_pass("Successfully read\n");
>> +	ksft_finished();
>>  }
> 
> 

-- 
BR,
Muhammad Usama Anjum

Re: [PATCH v2 2/2] selftests/thermel/intel: conform the test to TAP output

[srinivas pandruvada]

On Wed, 2024-07-03 at 11:19 +0500, Muhammad Usama Anjum wrote:
> On 7/3/24 9:40 AM, srinivas pandruvada wrote:
> > On Tue, 2024-07-02 at 15:12 +0500, Muhammad Usama Anjum wrote:
> > > Conform the layout, informational and status messages to TAP. No
> > > functional change is intended other than the layout of output
> > > messages.
> > > 
> > Not true. You did functional change by adding a break in the loop.
> > The purpose here to wait for these message continuously till ctrl-c
> > or
> > similar.
> I'll correct the description.
> 
> > 
> > > The test has infinite loop to read the value of status_str. Break
> > > the
> > > loop after getting the value once and finish the test.
> > > 
> > No, that is not the purpose.
> We want to finish the test after some iterations as in CIs we cannot
> abort
> the test by sending signals. Would 10 or 100 iterations be enough for
> this
> test? Or it is the kind of test which wouldn't get events until some
> other
> process is using the same driver files?
> 
You generate events, you need to do workload and reduce power limit to
trigger. Otherwise these are rare events.

Thanks,
Srinivas


> > 
> > > Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
> > > ---
> > > Changes since v1:
> > > - Use ksft_exit_fail_perror if read() returns error
> > > - Break the infinite loop after printing status_str
> > > ---
> > >  .../intel/power_floor/power_floor_test.c      | 70 ++++++++-----
> > > ----
> > > --
> > >  1 file changed, 30 insertions(+), 40 deletions(-)
> > > 
> > > diff --git
> > > a/tools/testing/selftests/thermal/intel/power_floor/power_floor_t
> > > est.
> > > c
> > > b/tools/testing/selftests/thermal/intel/power_floor/power_floor_t
> > > est.
> > > c
> > > index 0326b39a11b91..c06b275acd36b 100644
> > > ---
> > > a/tools/testing/selftests/thermal/intel/power_floor/power_floor_t
> > > est.
> > > c
> > > +++
> > > b/tools/testing/selftests/thermal/intel/power_floor/power_floor_t
> > > est.
> > > c
> > > @@ -9,6 +9,7 @@
> > >  #include <fcntl.h>
> > >  #include <poll.h>
> > >  #include <signal.h>
> > > +#include "../../../kselftest.h"
> > >  
> > >  #define POWER_FLOOR_ENABLE_ATTRIBUTE
> > > "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_enabl
> > > e"
> > >  #define POWER_FLOOR_STATUS_ATTRIBUTE 
> > > "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_statu
> > > s"
> > > @@ -20,17 +21,13 @@ void power_floor_exit(int signum)
> > >  	/* Disable feature via sysfs knob */
> > >  
> > >  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> > > -	if (fd < 0) {
> > > -		perror("Unable to open power floor enable
> > > file\n");
> > > -		exit(1);
> > > -	}
> > > +	if (fd < 0)
> > > +		ksft_exit_fail_perror("Unable to open power
> > > floor
> > > enable file");
> > >  
> > > -	if (write(fd, "0\n", 2) < 0) {
> > > -		perror("Can' disable power floor
> > > notifications\n");
> > > -		exit(1);
> > > -	}
> > > +	if (write(fd, "0\n", 2) < 0)
> > > +		ksft_exit_fail_perror("Can' disable power floor
> > > notifications");
> > >  
> > > -	printf("Disabled power floor notifications\n");
> > > +	ksft_print_msg("Disabled power floor notifications\n");
> > >  
> > >  	close(fd);
> > >  }
> > > @@ -41,6 +38,9 @@ int main(int argc, char **argv)
> > >  	char status_str[3];
> > >  	int fd, ret;
> > >  
> > > +	ksft_print_header();
> > > +	ksft_set_plan(1);
> > > +
> > >  	if (signal(SIGINT, power_floor_exit) == SIG_IGN)
> > >  		signal(SIGINT, SIG_IGN);
> > >  	if (signal(SIGHUP, power_floor_exit) == SIG_IGN)
> > > @@ -50,59 +50,49 @@ int main(int argc, char **argv)
> > >  
> > >  	/* Enable feature via sysfs knob */
> > >  	fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> > > -	if (fd < 0) {
> > > -		perror("Unable to open power floor enable
> > > file\n");
> > > -		exit(1);
> > > -	}
> > > +	if (fd < 0)
> > > +		ksft_exit_fail_perror("Unable to open power
> > > floor
> > > enable file");
> > >  
> > > -	if (write(fd, "1\n", 2) < 0) {
> > > -		perror("Can' enable power floor
> > > notifications\n");
> > > -		exit(1);
> > > -	}
> > > +	if (write(fd, "1\n", 2) < 0)
> > > +		ksft_exit_fail_perror("Can' enable power floor
> > > notifications");
> > >  
> > >  	close(fd);
> > >  
> > > -	printf("Enabled power floor notifications\n");
> > > +	ksft_print_msg("Enabled power floor notifications\n");
> > >  
> > >  	while (1) {
> > >  		fd = open(POWER_FLOOR_STATUS_ATTRIBUTE,
> > > O_RDONLY);
> > > -		if (fd < 0) {
> > > -			perror("Unable to power floor status
> > > file\n");
> > > -			exit(1);
> > > -		}
> > > +		if (fd < 0)
> > > +			ksft_exit_fail_perror("Unable to power
> > > floor
> > > status 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\n");
> > >  
> > > -		if (read(fd, status_str, sizeof(status_str)) <
> > > 0) {
> > > -			fprintf(stderr, "Failed to read
> > > from:%s\n",
> > > -			POWER_FLOOR_STATUS_ATTRIBUTE);
> > > -			exit(1);
> > > -		}
> > > +		if (read(fd, status_str, sizeof(status_str)) <
> > > 0)
> > > +			ksft_exit_fail_perror("Failed to read
> > > from:
> > > power_floor_status");
> > >  
> > >  		ufd.fd = fd;
> > >  		ufd.events = POLLPRI;
> > >  
> > >  		ret = poll(&ufd, 1, -1);
> > >  		if (ret < 0) {
> > > -			perror("poll error");
> > > -			exit(1);
> > > +			ksft_exit_fail_msg("Poll error\n");
> > >  		} 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_msg("Failed to
> > > set
> > > pointer to beginning\n");
> > >  
> > >  			if (read(fd, status_str,
> > > sizeof(status_str))
> > > < 0)
> > > -				exit(0);
> > > +				ksft_exit_fail_perror("Failed to
> > > read");
> > >  
> > > -			printf("power floor status: %s\n",
> > > status_str);
> > > +			ksft_print_msg("power floor status:
> > > %s\n",
> > > status_str);
> > > +			break;
> > >  		}
> > >  
> > >  		close(fd);
> > >  	}
> > > +
> > > +	ksft_test_result_pass("Successfully read\n");
> > > +	ksft_finished();
> > >  }
> > 
> > 
> 

Re: [PATCH v2 1/2] selftests/thermel/intel: conform the test to TAP output

[Shuah Khan]

On 7/2/24 04:12, Muhammad Usama Anjum wrote:
> 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@collabora.com>
> ---
> Changes since v1:
> - Use ksft_exit_fail_perror if read() returns error
> - Break the infinite loop after printing index_str
> ---


Usama,

As I mentioned another TAP conversion patch from you  patch if the
following command gives you TAP, there is  no need to convert.

make -C tools/testing/tmp2 run_tests
make kselftest TARGETS=tmp2

kselftest framework lib.mk and runtests wrappers take care for
TAP. The reason to take care of this at framework level is to
avoid changes to individual tests. The wrapper keys off of
KSFT_* codes returned from tests.

Please don't send TAP conversion patches like this one. The output
from the commands will have duplicate messages. The reason tests
return

make -C tools/testing/tmp2 run_tests
make kselftest TARGETS=tmp2

thanks,
-- Shuah

Re: [PATCH v2 2/2] selftests/thermel/intel: conform the test to TAP output

[Shuah Khan]

On 7/2/24 04:12, Muhammad Usama Anjum wrote:
> Conform the layout, informational and status messages to TAP. No
> functional change is intended other than the layout of output messages.
> 
> The test has infinite loop to read the value of status_str. Break the
> loop after getting the value once and finish the test.
> 
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
> ---
> Changes since v1:
> - Use ksft_exit_fail_perror if read() returns error
> - Break the infinite loop after printing status_str
> ---

Usama,

As I mentioned another TAP conversion patch from you  patch if the
following command gives you TAP, there is  no need to convert.

make -C tools/testing/tmp2 run_tests
make kselftest TARGETS=tmp2

kselftest framework lib.mk and runtests wrappers take care for
TAP. The reason to take care of this at framework level is to
avoid changes to individual tests. The wrapper keys off of
KSFT_* codes returned from tests.

Please don't send TAP conversion patches like this one. The output
from the commands will have duplicate messages. The reason tests
return

make -C tools/testing/tmp2 run_tests
make kselftest TARGETS=tmp2

thanks,
-- Shuah