core_ticks_per_usec
return (ticks << adap->params.tp.dack_re) / core_ticks_per_usec(adap);
unsigned int core_ticks_per_usec(const struct adapter *adap);
idma->idma_1s_thresh = core_ticks_per_usec(adapter) * 1000000; /* 1s */
*ipg = (10000 * v) / core_ticks_per_usec(adap);