kernel/linux.git/tools/testing/selftests/ptp, branch v6.12.98

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

2026-07-04T11:43:24+00:00

This reverts commit 6b2176a5c99b33f3c4acc04faadaa9c75da7b163, which in turn reverts commit fa361565a7275cc43c6ca1abec9ec4fcc9ec51f1, which is commit 3d07b691ee707c00afaf365440975e81bb96cd9b upstream. The reason for the original revert was that struct ptp_sys_offset_extended does not contain the field clock_id in 6.12.y. However the claim was false: 6.12.y does in fact contain the field. Reapply therefore the original patch. Signed-off-by: Petr Machata Signed-off-by: Greg Kroah-Hartman

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

2026-06-19T11:42:39+00:00

This reverts commit fa361565a7275cc43c6ca1abec9ec4fcc9ec51f1, which is commit 3d07b691ee707c00afaf365440975e81bb96cd9b upstream. The cited commit allows testptp to set a configurable clock_id. That is done via a PTP_SYS_OFFSET_EXTENDED ioctl call, whose argument is struct ptp_sys_offset_extended, where the clock_id is set. However, this Linux version does not support the ptp_sys_offset_extended.clockid field, and the test case cannot be built against this tree's own UAPI headers. The reverted commit was introduced to resolve a missing dependency of commit c6dc458227a3 ("testptp: Add option to open PHC in readonly mode"), which is 76868642e427 upstream. My suspicion is that the only conflict between the two is the getopt string, and there is otherwise no direct dependency between the two. This patch therefore reverts the cited commit, with hand-resolving the getopt string to include 'r' (as introduced by c6dc458227a3), but not 'y' (introduced by 06954f715deb). Reported-by: Yong Wang Signed-off-by: Petr Machata Signed-off-by: Greg Kroah-Hartman

testptp: Add option to open PHC in readonly mode

2026-01-30T09:28:37+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

2026-01-30T09:28:37+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

2023-10-15T19:07:52+00:00

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

ptp: add debugfs interface to see applied channel masks

2023-10-15T19:07:52+00:00

Use debugfs to be able to view channel mask applied to every timestamp event queue. Every time the device is opened, a new entry is created in `$DEBUGFS_MOUNTPOINT/ptpN/$INSTANCE_ADDRESS/mask`. The mask value can be viewed grouped in 32bit decimal values using cat, or converted to hexadecimal with the included `ptpchmaskfmt.sh` script. 32 bit values are listed from least significant to most significant. Signed-off-by: Xabier Marquiegui Suggested-by: Vinicius Costa Gomes Signed-off-by: David S. Miller

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