Function test20

dpdk/app/test/test_lpm6.c:1234–1295

* Add two rules, lookup to hit the more specific one, lookup to hit the less * specific one delete the less specific rule and lookup previous values again; * add a more specific rule than the existing rule, lookup again */

 * add a more specific rule than the existing rule, lookup again
 */
int32_t
test20(void)
{
	struct rte_lpm6 *lpm = NULL;
	struct rte_lpm6_config config;
	uint8_t ip[16];
	uint8_t depth;
	uint32_t next_hop_add, next_hop_return;
	int32_t status = 0;

	config.max_rules = MAX_RULES;
	config.number_tbl8s = NUMBER_TBL8S;
	config.flags = 0;

	lpm = rte_lpm6_create(__func__, SOCKET_ID_ANY, &config);
	TEST_LPM_ASSERT(lpm != NULL);

	IPv6(ip, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
	depth = 24;
	next_hop_add = 100;

	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == 0);

	IPv6(ip, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10);
	depth = 128;
	next_hop_add = 101;

	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == 0);

	status = rte_lpm6_lookup(lpm, ip, &next_hop_return);
	TEST_LPM_ASSERT((status == 0) && (next_hop_return == next_hop_add));

	IPv6(ip, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
	next_hop_add = 100;

	status = rte_lpm6_lookup(lpm, ip, &next_hop_return);
	TEST_LPM_ASSERT((status == 0) && (next_hop_return == next_hop_add));

	IPv6(ip, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
	depth = 24;

	status = rte_lpm6_delete(lpm, ip, depth);
	TEST_LPM_ASSERT(status == 0);

	status = rte_lpm6_lookup(lpm, ip, &next_hop_return);
	TEST_LPM_ASSERT(status == -ENOENT);

	IPv6(ip, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10);
	depth = 128;

	status = rte_lpm6_delete(lpm, ip, depth);
	TEST_LPM_ASSERT(status == 0);

	status = rte_lpm6_lookup(lpm, ip, &next_hop_return);
	TEST_LPM_ASSERT(status == -ENOENT);