V_sphashtbl
#define SPHASH_HASH(id) &V_sphashtbl[SPHASH_HASHVAL(id)]
V_sphashtbl = hashinit(SPHASH_NHASH, M_IPSEC_SP, &V_sphash_mask);
LIST_INIT(&V_sphashtbl[i]);
hashdestroy(V_sphashtbl, M_IPSEC_SP, V_sphash_mask);