Re: [PATCH net-next v3 06/11] net: ethernet: ti: cpts: move tx timestamp processing to ptp worker only

From: Grygorii Strashko
Date: Thu Mar 26 2020 - 16:17:12 EST




On 26/03/2020 16:29, Richard Cochran wrote:
On Fri, Mar 20, 2020 at 09:42:39PM +0200, Grygorii Strashko wrote:
Now the tx timestamp processing happens from different contexts - softirq
and thread/PTP worker. Enabling IRQ will add one more hard_irq context.
This makes over all defered TX timestamp processing and locking
overcomplicated. Move tx timestamp processing to PTP worker always instead.

napi_rx->cpts_tx_timestamp
if ptp_packet then
push to txq
ptp_schedule_worker()

do_aux_work->cpts_overflow_check
cpts_process_events()

Since cpts_overflow_check() is performing new functions, consider
renaming it to match.

It's still performs overflow check

static long cpts_overflow_check(struct ptp_clock_info *ptp)
{
...

mutex_lock(&cpts->ptp_clk_mutex);

cpts_update_cur_time(cpts, -1, NULL);
^^^ here
ns = timecounter_read(&cpts->tc);


cpts_process_events(cpts);

What name would you suggest?

Thank you.

--
Best regards,
grygorii