[PATCH v6 2/3] net/ice: add frequency adjustment support for PTP

[Ferruh Yigit]

On 10/11/2024 9:02 AM, Bruce Richardson wrote:
> On Fri, Oct 11, 2024 at 06:34:06AM +0000, Mingjin Ye wrote:
>> Add ice support for new ethdev API to adjust frequency for IEEE1588
>> PTP. Also, this patch reworks code for converting software update
>> to hardware update.
>>
>> Signed-off-by: Simei Su <simei.su at intel.com>
>> Signed-off-by: Mingjin Ye <mingjinx.ye at intel.com>
>> ---
>>  doc/guides/nics/ice.rst      |  16 ++++
>>  drivers/net/ice/ice_ethdev.c | 176 ++++++++++++++++++++++++++---------
>>  drivers/net/ice/ice_ethdev.h |   5 +-
>>  drivers/net/ice/ice_rxtx.c   |   4 +-
>>  4 files changed, 153 insertions(+), 48 deletions(-)
>>
>> diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
>> index ae975d19ad..061c8c7a20 100644
>> --- a/doc/guides/nics/ice.rst
>> +++ b/doc/guides/nics/ice.rst
>> @@ -328,6 +328,22 @@ Forward Error Correction (FEC)
>>  
>>  Supports get/set FEC mode and get FEC capability.
>>  
>> +Time Synchronisation
>> +~~~~~~~~~~~~~~~~~~~~
>> +
>> +The system operator can run a PTP (Precision Time Protocol) client application
>> +to synchronise the time on the network card (and optionally the time on the
>> +system) to the PTP master.
>> +
>> +ICE PMD supports PTP client applications that use the DPDK IEEE1588 API to
>> +communicate with the PTP master clock. Note that PTP client application needs
>> +to run on PF and add the ``--force-max-simd-bitwidth=64`` startup parameter to
>> +disable vector mode.
>> +
>> +.. code-block:: console
>> +
>> +    examples/dpdk-ptpclient -c f -n 3 -a 0000:ec:00.1 --force-max-simd-bitwidth=64 -- -T 1 -p 0x1 -c 1
>> +
> 
> It's a pity that the vector disabling doesn't happen automatically
> somewhere and that we have to ask the user to pass in the flag. Maybe see
> if that can be improved for RC2 or next release?
> 
> Anyway, for this patch:
> 
> Acked-by: Bruce Richardson <bruce.richardson at intel.com>
> 

Applied to dpdk-next-net/main, thanks.