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zebra: Slow down fpm_process_queue

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When the fpm_process_queue has run out of space
but has written to the fpm output buffer, schedule
it to wake up immediately, as that the write will go out
pretty much immediately, since it was scheduled first.
If the fpm_process_queue has not written to the output
buffer then delay the processing by 10 milliseconds to
allow a possibly backed up write processing to have a
chance to complete it's work.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2024-10-10 20:08:32 -04:00
parent 963792e8c5
commit 8aa97a439f
1 changed files with 6 additions and 2 deletions
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8
zebra/dplane_fpm_nl.c
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@ -1512,8 +1512,12 @@ static void fpm_process_queue(struct event *t)
/* Re-schedule if we ran out of buffer space */
if (no_bufs) {
event_add_event(fnc->fthread->master, fpm_process_queue, fnc, 0,
&fnc->t_dequeue);
if (processed_contexts)
event_add_event(fnc->fthread->master, fpm_process_queue, fnc, 0,
&fnc->t_dequeue);
else
event_add_timer_msec(fnc->fthread->master, fpm_process_queue, fnc, 10,
&fnc->t_dequeue);
event_add_timer(fnc->fthread->master, fpm_process_wedged, fnc,
DPLANE_FPM_NL_WEDGIE_TIME, &fnc->t_wedged);
} else