BNXT_HI_TIMER_SHIFT
WRITE_ONCE(ptp->old_time, ptp->current_time >> BNXT_HI_TIMER_SHIFT);
WRITE_ONCE(ptp->old_time, ptp->current_time >> BNXT_HI_TIMER_SHIFT);
WRITE_ONCE(ptp->old_time, ptp->current_time >> BNXT_HI_TIMER_SHIFT);
time = (u64)READ_ONCE(ptp->old_time) << BNXT_HI_TIMER_SHIFT;