scsipi_lookup_periph_locked
periph = scsipi_lookup_periph_locked(chan, target, 0);
periph = scsipi_lookup_periph_locked(chan, xm->xm_target, lun);
periph = scsipi_lookup_periph_locked(chan, xm->xm_target, lun);
periph = scsipi_lookup_periph_locked(chan, target, lun);
periph = scsipi_lookup_periph_locked(chan, mo->mo_target, minlun);
periph = scsipi_lookup_periph_locked(chan, target, lun);
periph = scsipi_lookup_periph_locked(chan, ctarget, clun);
KASSERT(scsipi_lookup_periph_locked(chan, ctarget, clun) == NULL);
struct scsipi_periph *scsipi_lookup_periph_locked(struct scsipi_channel *,