mlx5: update timecounter at least twice per counter overflow

The timecounter needs to be updated at least once in half of the
cyclecounter interval to prevent timecounter_cyc2time() interpreting a
new timestamp as an old value and causing a backward jump.

This would be an issue if the timecounter multiplier was so small that
the update interval would not be limited by the 64-bit overflow in
multiplication.

Shorten the calculated interval to make sure the timecounter is updated
in time even when the system clock is slowed down by up to 10%, the
multiplier is increased by up to 10%, and the scheduled overflow check
is late by 15%.

Cc: Richard Cochran <[email protected]>
Cc: Ariel Levkovich <[email protected]>
Cc: Saeed Mahameed <[email protected]>
Signed-off-by: Miroslav Lichvar <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>

0 files changed, 0 insertions, 0 deletions