[v1] ptp: add control over HW timestamp latch point

[RFC PATCH 0/2] ptp: add control over HW timestamp latch point

Arkadiusz Kubalewski posted 2 patches 1 month, 3 weeks ago

Diff against v1 v2 v3
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There is a newer version of this series

drivers/net/ethernet/intel/ice/ice_ptp.c    | 48 +++++++++++++++++++
drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 52 +++++++++++++++++++++
drivers/net/ethernet/intel/ice/ice_ptp_hw.h |  3 +-
drivers/ptp/ptp_sysfs.c                     | 44 +++++++++++++++++
include/linux/ptp_clock_kernel.h            | 26 +++++++++++
5 files changed, 172 insertions(+), 1 deletion(-)

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[RFC PATCH 0/2] ptp: add control over HW timestamp latch point

Posted by Arkadiusz Kubalewski 1 month, 3 weeks ago

HW support of PTP/timesync solutions in network PHY chips can be
achieved with two different approaches, the timestamp maybe latched
either in the beginning or after the Start of Frame Delimiter (SFD) [1].

Allow ptp device drivers to provide user with control over the timestamp
latch point.

Arkadiusz Kubalewski (2):
  ptp: add control over HW timestamp latch point
  ice: ptp: add control over HW timestamp latch point

 drivers/net/ethernet/intel/ice/ice_ptp.c    | 48 +++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 52 +++++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h |  3 +-
 drivers/ptp/ptp_sysfs.c                     | 44 +++++++++++++++++
 include/linux/ptp_clock_kernel.h            | 26 +++++++++++
 5 files changed, 172 insertions(+), 1 deletion(-)

-- 
2.38.1

Re: [RFC PATCH 0/2] ptp: add control over HW timestamp latch point

Posted by Richard Cochran 1 month, 3 weeks ago

On Thu, Oct 03, 2024 at 11:37:52PM +0200, Arkadiusz Kubalewski wrote:
> HW support of PTP/timesync solutions in network PHY chips can be
> achieved with two different approaches, the timestamp maybe latched
> either in the beginning or after the Start of Frame Delimiter (SFD) [1].
> 
> Allow ptp device drivers to provide user with control over the timestamp
> latch point.

This looks okay to me.

Sorry for the late reply, but I'm travelling untill Oct 11 and may not
response to messages right away.

Thanks,
Richard

RE: [RFC PATCH 0/2] ptp: add control over HW timestamp latch point

Posted by Kubalewski, Arkadiusz 1 month, 2 weeks ago

>From: Richard Cochran <richardcochran@gmail.com>
>Sent: Monday, October 7, 2024 6:07 PM
>
>On Thu, Oct 03, 2024 at 11:37:52PM +0200, Arkadiusz Kubalewski wrote:
>> HW support of PTP/timesync solutions in network PHY chips can be
>> achieved with two different approaches, the timestamp maybe latched
>> either in the beginning or after the Start of Frame Delimiter (SFD) [1].
>>
>> Allow ptp device drivers to provide user with control over the
>> timestamp latch point.
>
>This looks okay to me.
>
>Sorry for the late reply, but I'm travelling untill Oct 11 and may not
>response to messages right away.
>
>Thanks,
>Richard

Hi Richard,

Not a problem.
Great to hear that it looks good for you, I will prepare proper patches soon.

Thank you!
Arkadiusz