NPF_ADDR_SLOTS
for (unsigned i = 0; i < NPF_ADDR_SLOTS; i++) {
KASSERT(aidx < NPF_ADDR_SLOTS);
npf_tblent_t ** t_elements[NPF_ADDR_SLOTS];
unsigned t_allocated[NPF_ADDR_SLOTS];
unsigned t_used[NPF_ADDR_SLOTS];