i_ddi_intr_get_supported_nintrs
if (*nintrsp = i_ddi_intr_get_supported_nintrs(dip, type))
if ((nintrs = i_ddi_intr_get_supported_nintrs(dip, type)) == 0) {
nintrs = i_ddi_intr_get_supported_nintrs(dip, type);
uint_t i_ddi_intr_get_supported_nintrs(dev_info_t *dip, int intr_type);