kernel/linux.git/tools/testing/selftests/ptp, branch v6.6.93

selftests/ptp: Add -X option for testing PTP_SYS_OFFSET_PRECISE

2023-07-28T09:59:40+00:00

The -X option was chosen because X looks like a cross, and the underlying callback is 'get cross timestamp'. Signed-off-by: Alex Maftei Signed-off-by: David S. Miller

selftests/ptp: Add -x option for testing PTP_SYS_OFFSET_EXTENDED

2023-07-28T09:59:40+00:00

The -x option (where 'x' stands for eXtended) takes an argument which represents the number of samples to request from the PTP device. The help message will display the maximum number of samples allowed. Providing an invalid argument will also display the maximum number of samples allowed. Signed-off-by: Alex Maftei Signed-off-by: David S. Miller

ptp: Add .getmaxphase callback to ptp_clock_info

2023-06-20T08:02:33+00:00

Enables advertisement of the maximum offset supported by the phase control functionality of PHCs. The callback is used to return an error if an offset not supported by the PHC is used in ADJ_OFFSET. The ioctls PTP_CLOCK_GETCAPS and PTP_CLOCK_GETCAPS2 now advertise the maximum offset a PHC's phase control functionality is capable of supporting. Introduce new sysfs node, max_phase_adjustment. Cc: Jakub Kicinski Cc: Shuah Khan Cc: Richard Cochran Cc: Maciek Machnikowski Signed-off-by: Rahul Rameshbabu Acked-by: Richard Cochran Signed-off-by: David S. Miller

testptp: Add support for testing ptp_clock_info .adjphase callback

2023-06-20T08:02:33+00:00

Invoke clock_adjtime syscall with tx.modes set with ADJ_OFFSET when testptp is invoked with a phase adjustment offset value. Support seconds and nanoseconds for the offset value. Cc: Jakub Kicinski Cc: Shuah Khan Cc: Richard Cochran Cc: Maciek Machnikowski Signed-off-by: Rahul Rameshbabu Acked-by: Richard Cochran Signed-off-by: David S. Miller

testptp: Remove magic numbers related to nanosecond to second conversion

2023-06-20T08:02:33+00:00

Use existing NSEC_PER_SEC declaration in place of hardcoded magic numbers. Cc: Jakub Kicinski Cc: Shuah Khan Cc: Richard Cochran Cc: Maciek Machnikowski Signed-off-by: Rahul Rameshbabu Acked-by: Richard Cochran Signed-off-by: David S. Miller

selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET

2023-06-15T22:07:23+00:00

Previously, timestamps were printed using "%lld.%u" which is incorrect for nanosecond values lower than 100,000,000 as they're fractional digits, therefore leading zeros are meaningful. This patch changes the format strings to "%lld.%09u" in order to add leading zeros to the nanosecond value. Fixes: 568ebc5985f5 ("ptp: add the PTP_SYS_OFFSET ioctl to the testptp program") Fixes: 4ec54f95736f ("ptp: Fix compiler warnings in the testptp utility") Fixes: 6ab0e475f1f3 ("Documentation: fix misc. warnings") Signed-off-by: Alex Maftei Acked-by: Richard Cochran Link: https://lore.kernel.org/r/20230615083404.57112-1-alex.maftei@amd.com Signed-off-by: Jakub Kicinski

selftests/ptp: Remove clean target from Makefile

2023-02-13T17:05:49+00:00

Fix the following build warn removing unnecessary clean target from the Makefile. lib.mk handles clean. Makefile:10: warning: overriding recipe for target clean ../lib.mk:124: warning: ignoring old recipe for target clean In addition, fix to use TEST_GEN_PROGS for generated test executables and TES_PROGS for the shell script. Ger rid of all target as lib.mk handles it. Signed-off-by: Shuah Khan

selftests: ptp: Fix incorrect kernel headers search path

2023-02-13T16:09:45+00:00

Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Cc: Ingo Molnar Cc: # 5.18+ Signed-off-by: Shuah Khan

testptp: add option to shift clock by nanoseconds

2022-02-23T01:03:40+00:00

Add option to shift the clock by a specified number of nanoseconds. The new argument -n will specify the number of nanoseconds to add to the ptp clock. Since the API doesn't support negative shifts those needs to be calculated by subtracting full seconds and adding a nanosecond offset. Signed-off-by: Maciek Machnikowski Acked-by: Richard Cochran Link: https://lore.kernel.org/r/20220221200637.125595-1-maciek@machnikowski.net Signed-off-by: Jakub Kicinski

testptp: set pin function before other requests

2022-01-06T01:08:58+00:00

When the -L option of the testptp utility is specified with other options (e.g. -p to enable PPS output), the user probably wants to apply it to the pin configured by the -L option. Reorder the code to set the pin function before other function requests to avoid confusing users. Signed-off-by: Miroslav Lichvar Reviewed-by: Vladimir Oltean Acked-by: Richard Cochran Link: https://lore.kernel.org/r/20220105152506.3256026-1-mlichvar@redhat.com Signed-off-by: Jakub Kicinski