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[net-next,v2,0/9] ptp .adjphase cleanups

Message ID 20230523205440.326934-1-rrameshbabu@nvidia.com (mailing list archive)
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Series ptp .adjphase cleanups | expand

Message

Rahul Rameshbabu May 23, 2023, 8:54 p.m. UTC 
The goal of this patch series is to improve documentation of .adjphase, add
a new callback .getmaxphase to enable advertising the max phase offset a
device PHC can support, and support invoking .adjphase from the testptp
kselftest.

Changes:
  v2->v1:
    * Removes arbitrary rule that the PHC servo must restore the frequency
      to the value used in the last .adjfine call if any other PHC
      operation is used after a .adjphase operation.
    * Removes a macro introduced in v1 for adding PTP sysfs device
      attribute nodes using a callback for populating the data.

Link: https://lore.kernel.org/netdev/20230120160609.19160723@kernel.org/
Link: https://lore.kernel.org/netdev/20230510205306.136766-1-rrameshbabu@nvidia.com/
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Richard Cochran <richardcochran@gmail.com>

Rahul Rameshbabu (9):
  ptp: Clarify ptp_clock_info .adjphase expects an internal servo to be
    used
  docs: ptp.rst: Add information about NVIDIA Mellanox devices
  testptp: Remove magic numbers related to nanosecond to second
    conversion
  testptp: Add support for testing ptp_clock_info .adjphase callback
  ptp: Add .getmaxphase callback to ptp_clock_info
  net/mlx5: Add .getmaxphase ptp_clock_info callback
  ptp: ptp_clockmatrix: Add .getmaxphase ptp_clock_info callback
  ptp: idt82p33: Add .getmaxphase ptp_clock_info callback
  ptp: ocp: Add .getmaxphase ptp_clock_info callback

 Documentation/driver-api/ptp.rst              | 29 +++++++++++++++
 .../ethernet/mellanox/mlx5/core/lib/clock.c   | 31 ++++++++--------
 drivers/ptp/ptp_chardev.c                     |  5 ++-
 drivers/ptp/ptp_clock.c                       |  4 +++
 drivers/ptp/ptp_clockmatrix.c                 | 36 +++++++++----------
 drivers/ptp/ptp_clockmatrix.h                 |  2 +-
 drivers/ptp/ptp_idt82p33.c                    | 18 +++++-----
 drivers/ptp/ptp_idt82p33.h                    |  4 +--
 drivers/ptp/ptp_ocp.c                         |  7 ++++
 drivers/ptp/ptp_sysfs.c                       | 12 +++++++
 include/linux/ptp_clock_kernel.h              | 11 ++++--
 include/uapi/linux/ptp_clock.h                |  3 +-
 tools/testing/selftests/ptp/testptp.c         | 29 ++++++++++++---
 13 files changed, 135 insertions(+), 56 deletions(-)