Add positive and negative tests for API rte_lpm_rcu_qsbr_add.
Also test LPM library behavior when RCU QSBR is enabled.
Signed-off-by: Ruifeng Wang <ruifeng.w...@arm.com>
Reviewed-by: Gavin Hu <gavin...@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
---
app/test/test_lpm.c | 153 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 152 insertions(+), 1 deletion(-)
diff --git a/app/test/test_lpm.c b/app/test/test_lpm.c
index e969fe051..cfd372395 100644
--- a/app/test/test_lpm.c
+++ b/app/test/test_lpm.c
@@ -8,6 +8,7 @@
#include <rte_ip.h>
#include <rte_lpm.h>
+#include <rte_malloc.h>
#include "test.h"
#include "test_xmmt_ops.h"
@@ -40,6 +41,8 @@ static int32_t test15(void);
static int32_t test16(void);
static int32_t test17(void);
static int32_t test18(void);
+static int32_t test19(void);
+static int32_t test20(void);
rte_lpm_test tests[] = {
/* Test Cases */
@@ -61,7 +64,9 @@ rte_lpm_test tests[] = {
test15,
test16,
test17,
- test18
+ test18,
+ test19,
+ test20
};
#define NUM_LPM_TESTS (sizeof(tests)/sizeof(tests[0]))
@@ -1266,6 +1271,152 @@ test18(void)
return PASS;
}
+/*
+ * rte_lpm_rcu_qsbr_add positive and negative tests.
+ * - Add RCU QSBR variable to LPM
+ * - Add another RCU QSBR variable to LPM
+ * - Check LPM attached RCU QSBR variable and FIFO queue
+ */
+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;
+
+ 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);
+
+ /* Attach RCU QSBR to LPM table */
+ status = rte_lpm_rcu_qsbr_add(lpm, qsv);
+ 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);
+
+ status = rte_lpm_rcu_qsbr_add(lpm, qsv2);
+ TEST_LPM_ASSERT(status != 0);
+
+ TEST_LPM_ASSERT(lpm->qsv == qsv);
+ TEST_LPM_ASSERT(lpm->qs_fifo != NULL);
+
+ rte_lpm_free(lpm);
+ rte_free(qsv);
+ rte_free(qsv2);
+
+ return PASS;
+}
+
+/*
+ * rte_lpm_rcu_qsbr_add functional test.
+ * - Create LPM which supports 1 tbl8 group at max
+ * - Add RCU QSBR variable to LPM
+ * - Add a rule with depth=28 (> 24)
+ * - Register a reader thread (not a real thread)
+ * - Reader lookup existing rule
+ * - Writer delete the rule
+ * - Reader lookup the rule
+ * - Writer re-add the rule (no available tbl8 group)
+ * - Reader report quiescent state and unregister
+ * - Writer re-add the rule
+ * - Reader lookup the rule
+ */
+int32_t
+test20(void)
+{
+ struct rte_lpm *lpm = NULL;
+ struct rte_lpm_config config;
+ size_t sz;
+ struct rte_rcu_qsbr *qsv;
+ int32_t status;
+ uint32_t ip, next_hop, next_hop_return;
+ uint8_t depth;
+
+ config.max_rules = MAX_RULES;
+ config.number_tbl8s = 1;
+ 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(1);
+ 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, 1);
+ TEST_LPM_ASSERT(status == 0);
+
+ /* Attach RCU QSBR to LPM table */
+ status = rte_lpm_rcu_qsbr_add(lpm, qsv);
+ TEST_LPM_ASSERT(status == 0);
+
+ ip = RTE_IPV4(192, 18, 100, 100);
+ depth = 28;
+ next_hop = 1;
+ status = rte_lpm_add(lpm, ip, depth, next_hop);
+ TEST_LPM_ASSERT(status == 0);
+ TEST_LPM_ASSERT(lpm->tbl24[ip>>8].valid_group);
+
+ /* Register pseudo reader */
+ status = rte_rcu_qsbr_thread_register(qsv, 0);
+ TEST_LPM_ASSERT(status == 0);
+ rte_rcu_qsbr_thread_online(qsv, 0);
+
+ status = rte_lpm_lookup(lpm, ip, &next_hop_return);
+ TEST_LPM_ASSERT(status == 0);
+ TEST_LPM_ASSERT(next_hop_return == next_hop);
+
+ /* Writer update */
+ status = rte_lpm_delete(lpm, ip, depth);
+ TEST_LPM_ASSERT(status == 0);
+ TEST_LPM_ASSERT(!lpm->tbl24[ip>>8].valid);
+
+ status = rte_lpm_lookup(lpm, ip, &next_hop_return);
+ TEST_LPM_ASSERT(status != 0);
+
+ status = rte_lpm_add(lpm, ip, depth, next_hop);
+ TEST_LPM_ASSERT(status != 0);
+
+ /* Reader quiescent */
+ rte_rcu_qsbr_quiescent(qsv, 0);
+
+ status = rte_lpm_add(lpm, ip, depth, next_hop);
+ TEST_LPM_ASSERT(status == 0);
+
+ rte_rcu_qsbr_thread_offline(qsv, 0);
+ status = rte_rcu_qsbr_thread_unregister(qsv, 0);
+ TEST_LPM_ASSERT(status == 0);
+
+ status = rte_lpm_lookup(lpm, ip, &next_hop_return);
+ TEST_LPM_ASSERT(status == 0);
+ TEST_LPM_ASSERT(next_hop_return == next_hop);
+
+ rte_lpm_free(lpm);
+ rte_free(qsv);
+
+ return PASS;
+}
+
/*
* Do all unit tests.
*/
--
2.17.1
