htobe64
*(int64_t *)xdr->xdr_idx = htobe64(*lp);
*(uint64_t *)xdr->xdr_idx = htobe64(*lp);
be->vbe_version = htobe64(be->vbe_version);
sc->nvstore.eui64 = htobe64(strtoull(value, NULL, 0));
msg.dm_count = htobe64(count);
extern uint64_t htobe64(uint64_t);
test64 = htobe64(val64);