Re: [PATCH 3/6] net: ethernet: ti: cpts: add support of cpts HW_TS_PUSH

From: Richard Cochran
Date: Fri Dec 09 2016 - 03:50:49 EST

On Thu, Dec 08, 2016 at 01:04:11PM -0600, Grygorii Strashko wrote:
> huh. Seems this is not really good idea, because MISC Irq will be
> triggered for *any* CPTS event and there is no way to enable it just for

So what? That is not a problem.

> So, this doesn't work will with current code for RX/TX timestamping
> (which uses polling mode).

Why doesn't it work?

> + runtime overhead in net RX/TX caused by
> triggering more interrupts.

This is not relevant. Without HW_TS_PUSH, there is no need for
enabling the interrupt simply because we don't need it. Now, with
HW_TS_PUSH, we do need it.

> May be, overflow check/polling timeout can be made configurable (module parameter).

No, it should just work without any user space fiddling.

I getting a bit tired of your half-baked implementations of the
ancillary clock functions. Either do it right, or just leave it