kernel/linux.git/tools/testing/selftests/ptp, branch v6.6.131

testptp: Add option to open PHC in readonly mode

2026-01-30T09:27:30+00:00

[ Upstream commit 76868642e42795353106197abf9c607ad80f4c9e ] PTP Hardware Clocks no longer require WRITE permission to perform readonly operations, such as listing device capabilities or listening to EXTTS events once they have been enabled by a process with WRITE permissions. Add '-r' option to testptp to open the PHC in readonly mode instead of the default read-write mode. Skip enabling EXTTS if readonly mode is requested. Acked-by: Richard Cochran Reviewed-by: Vadim Fedorenko Signed-off-by: Wojtek Wasko Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

selftest/ptp: update ptp selftest to exercise the gettimex options

2026-01-30T09:27:30+00:00

[ Upstream commit 3d07b691ee707c00afaf365440975e81bb96cd9b ] With the inclusion of commit c259acab839e ("ptp/ioctl: support MONOTONIC{,_RAW} timestamps for PTP_SYS_OFFSET_EXTENDED") clock_gettime() now allows retrieval of pre/post timestamps for CLOCK_MONOTONIC and CLOCK_MONOTONIC_RAW timebases along with the previously supported CLOCK_REALTIME. This patch adds a command line option 'y' to the testptp program to choose one of the allowed timebases [realtime aka system, monotonic, and monotonic-raw). Signed-off-by: Mahesh Bandewar Cc: Shuah Khan Acked-by: Richard Cochran Link: https://patch.msgid.link/20241003101506.769418-1-maheshb@google.com Signed-off-by: Jakub Kicinski Stable-dep-of: 76868642e427 ("testptp: Add option to open PHC in readonly mode") Signed-off-by: Sasha Levin

ptp: add testptp mask test

2026-01-30T09:27:30+00:00

[ Upstream commit 26285e689c6cd2cf3849568c83b2ebe53f467143 ] Add option to test timestamp event queue mask manipulation in testptp. Option -F allows the user to specify a single channel that will be applied on the mask filter via IOCTL. The test program will maintain the file open until user input is received. This allows checking the effect of the IOCTL in debugfs. eg: Console 1: ``` Channel 12 exclusively enabled. Check on debugfs. Press any key to continue ``` Console 2: ``` 0x00000000 0x00000001 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 ``` Signed-off-by: Xabier Marquiegui Suggested-by: Richard Cochran Suggested-by: Vinicius Costa Gomes Signed-off-by: David S. Miller Stable-dep-of: 76868642e427 ("testptp: Add option to open PHC in readonly mode") Signed-off-by: Sasha Levin

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