Re: [PATCH 1/2] net: ethernet: ti: cpts: convert to use kthread_worker

[Grygorii Strashko]

Hi Richard,

On 07/22/2017 12:29 AM, Richard Cochran wrote:
> On Fri, Jul 21, 2017 at 06:49:42PM -0500, Grygorii Strashko wrote:
>> There could be significant delay in CPTS work schedule under high system
>> load and on -RT which could cause CPTS misbehavior due to internal counter
>> overflow. Usage of own kthread_worker allows to avoid such kind of issues
>> and makes it possible to tune priority of CPTS kthread_worker thread on -RT
>> (thread name "cpts").
> 
> I have also seen excessive delays in the time stamp work from the
> dp83640 under certain loads.  Can we please implement this time stamp
> kthread_worker in the PHC subsystem?  That way, the facility can be
> used by other drivers without code duplication.

Below if pure TBD/RFC version of patch which add kthread worker to PTP core.
I'm sending it to get you opinion about implementation in general, before 
continue with more changes. Pls, take a look if you have time?
- are you ok with names (API, callbacks, ptp structs members)?

I can prepare, update and resend proper patches tom if feedback is positive.
I also can convert dp83640 driver to use new feature, but I can't test it.