Function test19

dpdk/app/test/test_lpm.c:1290–1343

* rte_lpm_rcu_qsbr_add positive and negative tests. * - Add RCU QSBR variable to LPM * - Add another RCU QSBR variable to LPM * - Check returns */

 *  - Check returns
 */
int32_t
test19(void)
{
	struct rte_lpm *lpm = NULL;
	struct rte_lpm_config config;
	size_t sz;
	struct rte_rcu_qsbr *qsv;
	struct rte_rcu_qsbr *qsv2;
	int32_t status;
	struct rte_lpm_rcu_config rcu_cfg = {0};

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

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

	/* Create RCU QSBR variable */
	sz = rte_rcu_qsbr_get_memsize(RTE_MAX_LCORE);
	qsv = (struct rte_rcu_qsbr *)rte_zmalloc_socket(NULL, sz,
					RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
	TEST_LPM_ASSERT(qsv != NULL);

	status = rte_rcu_qsbr_init(qsv, RTE_MAX_LCORE);
	TEST_LPM_ASSERT(status == 0);

	rcu_cfg.v = qsv;
	/* Invalid QSBR mode */
	rcu_cfg.mode = 2;
	status = rte_lpm_rcu_qsbr_add(lpm, &rcu_cfg);
	TEST_LPM_ASSERT(status != 0);

	rcu_cfg.mode = RTE_LPM_QSBR_MODE_DQ;
	/* Attach RCU QSBR to LPM table */
	status = rte_lpm_rcu_qsbr_add(lpm, &rcu_cfg);
	TEST_LPM_ASSERT(status == 0);

	/* Create and attach another RCU QSBR to LPM table */
	qsv2 = (struct rte_rcu_qsbr *)rte_zmalloc_socket(NULL, sz,
					RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
	TEST_LPM_ASSERT(qsv2 != NULL);

	rcu_cfg.v = qsv2;
	rcu_cfg.mode = RTE_LPM_QSBR_MODE_SYNC;
	status = rte_lpm_rcu_qsbr_add(lpm, &rcu_cfg);
	TEST_LPM_ASSERT(status != 0);

	rte_lpm_free(lpm);
	rte_free(qsv);
	rte_free(qsv2);

	return PASS;
}

/*
 * rte_lpm_rcu_qsbr_add DQ mode functional test.