ill_zerocopy_capab_t
ill_zerocopy_capab_t *ill_zerocopy_capab; /* Zero-copy capabilities */
ill_zerocopy_capab_t **ill_zerocopy_capab;
ill_zerocopy_capab = (ill_zerocopy_capab_t **)&ill->ill_zerocopy_capab;
kmem_zalloc(sizeof (ill_zerocopy_capab_t),
sizeof (ill_zerocopy_capab_t));