n2rng_stat_t
n2rng_stat_t *dkp;
dkp = (n2rng_stat_t *)ksp->ks_data;
sizeof (n2rng_stat_t) / sizeof (kstat_named_t),
n2rng_stat_t *dkp = (n2rng_stat_t *)n2rng->n_ksp->ks_data;