+#else
+
+always_inline index_t
+ip4_fib_forwarding_lookup (u32 fib_index,
+ const ip4_address_t * addr)
+{
+ ip4_mtrie_leaf_t leaf;
+ ip4_mtrie_8_t * mtrie;
+
+ mtrie = &ip4_fib_get(fib_index)->mtrie;
+
+ leaf = ip4_mtrie_8_lookup_step_one (mtrie, addr);
+ leaf = ip4_mtrie_8_lookup_step (leaf, addr, 1);
+ leaf = ip4_mtrie_8_lookup_step (leaf, addr, 2);
+ leaf = ip4_mtrie_8_lookup_step (leaf, addr, 3);
+
+ return (ip4_mtrie_leaf_get_adj_index(leaf));
+}
+
+static_always_inline void
+ip4_fib_forwarding_lookup_x2 (u32 fib_index0,
+ u32 fib_index1,
+ const ip4_address_t * addr0,
+ const ip4_address_t * addr1,
+ index_t *lb0,
+ index_t *lb1)
+{
+ ip4_mtrie_leaf_t leaf[2];
+ ip4_mtrie_8_t * mtrie[2];
+
+ mtrie[0] = &ip4_fib_get(fib_index0)->mtrie;
+ mtrie[1] = &ip4_fib_get(fib_index1)->mtrie;
+
+ leaf[0] = ip4_mtrie_8_lookup_step_one (mtrie[0], addr0);
+ leaf[1] = ip4_mtrie_8_lookup_step_one (mtrie[1], addr1);
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 1);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 1);
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 2);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 2);
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 3);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 3);
+
+ *lb0 = ip4_mtrie_leaf_get_adj_index(leaf[0]);
+ *lb1 = ip4_mtrie_leaf_get_adj_index(leaf[1]);
+}
+
+static_always_inline void
+ip4_fib_forwarding_lookup_x4 (u32 fib_index0,
+ u32 fib_index1,
+ u32 fib_index2,
+ u32 fib_index3,
+ const ip4_address_t * addr0,
+ const ip4_address_t * addr1,
+ const ip4_address_t * addr2,
+ const ip4_address_t * addr3,
+ index_t *lb0,
+ index_t *lb1,
+ index_t *lb2,
+ index_t *lb3)
+{
+ ip4_mtrie_leaf_t leaf[4];
+ ip4_mtrie_8_t * mtrie[4];
+
+ mtrie[0] = &ip4_fib_get(fib_index0)->mtrie;
+ mtrie[1] = &ip4_fib_get(fib_index1)->mtrie;
+ mtrie[2] = &ip4_fib_get(fib_index2)->mtrie;
+ mtrie[3] = &ip4_fib_get(fib_index3)->mtrie;
+
+ leaf[0] = ip4_mtrie_8_lookup_step_one (mtrie[0], addr0);
+ leaf[1] = ip4_mtrie_8_lookup_step_one (mtrie[1], addr1);
+ leaf[2] = ip4_mtrie_8_lookup_step_one (mtrie[2], addr2);
+ leaf[3] = ip4_mtrie_8_lookup_step_one (mtrie[3], addr3);
+
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 1);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 1);
+ leaf[2] = ip4_mtrie_8_lookup_step (leaf[2], addr2, 1);
+ leaf[3] = ip4_mtrie_8_lookup_step (leaf[3], addr3, 1);
+
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 2);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 2);
+ leaf[2] = ip4_mtrie_8_lookup_step (leaf[2], addr2, 2);
+ leaf[3] = ip4_mtrie_8_lookup_step (leaf[3], addr3, 2);
+
+ leaf[0] = ip4_mtrie_8_lookup_step (leaf[0], addr0, 3);
+ leaf[1] = ip4_mtrie_8_lookup_step (leaf[1], addr1, 3);
+ leaf[2] = ip4_mtrie_8_lookup_step (leaf[2], addr2, 3);
+ leaf[3] = ip4_mtrie_8_lookup_step (leaf[3], addr3, 3);
+
+ *lb0 = ip4_mtrie_leaf_get_adj_index(leaf[0]);
+ *lb1 = ip4_mtrie_leaf_get_adj_index(leaf[1]);
+ *lb2 = ip4_mtrie_leaf_get_adj_index(leaf[2]);
+ *lb3 = ip4_mtrie_leaf_get_adj_index(leaf[3]);
+}
+
+#endif
+