fill_lba_for_scsi_rw
rc = fill_lba_for_scsi_rw(softs, OS_GET_CDBP(rcb), l);
static int fill_lba_for_scsi_rw(pqisrc_softstate_t *softs, uint8_t *cdb, aio_req_locator_t *l);
rc = fill_lba_for_scsi_rw(softs, rcb->cdbp , &loc);