[PATCH v1 03/13] test/bbdev: add timeout for latency tests

[Hernan Vargas]

Add a timeout to force exit the latency tests in case dequeue never
happens.

Signed-off-by: Hernan Vargas <hernan.var...@intel.com>
---
 app/test-bbdev/test_bbdev_perf.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
index 1a8a6b9f82..14fe76eb64 100644
--- a/app/test-bbdev/test_bbdev_perf.c
+++ b/app/test-bbdev/test_bbdev_perf.c
@@ -26,6 +26,7 @@
 
 #define MAX_QUEUES RTE_MAX_LCORE
 #define TEST_REPETITIONS 100
+#define TIME_OUT_POLL 1e8
 #define WAIT_OFFLOAD_US 1000
 
 #ifdef RTE_BASEBAND_FPGA_LTE_FEC
@@ -4544,6 +4545,7 @@ latency_test_ldpc_dec(struct rte_mempool *mempool,
 
        for (i = 0, dequeued = 0; dequeued < num_to_process; ++i) {
                uint16_t enq = 0, deq = 0;
+               uint32_t time_out = 0;
                bool first_time = true;
                last_time = 0;
 
@@ -4595,7 +4597,8 @@ latency_test_ldpc_dec(struct rte_mempool *mempool,
                                last_time = rte_rdtsc_precise() - start_time;
                                first_time = false;
                        }
-               } while (unlikely(burst_sz != deq));
+                       time_out++;
+               } while ((burst_sz != deq) && (time_out < TIME_OUT_POLL));
 
                *max_time = RTE_MAX(*max_time, last_time);
                *min_time = RTE_MIN(*min_time, last_time);
@@ -4604,7 +4607,13 @@ latency_test_ldpc_dec(struct rte_mempool *mempool,
                if (extDdr)
                        retrieve_harq_ddr(dev_id, queue_id, ops_enq, burst_sz);
 
-               if (test_vector.op_type != RTE_BBDEV_OP_NONE) {
+               if (burst_sz != deq) {
+                       ret = TEST_FAILED;
+                       dequeued = num_to_process; /* Force exit */
+                       struct rte_bbdev_info info;
+                       rte_bbdev_info_get(dev_id, &info);
+                       TEST_ASSERT_SUCCESS(ret, "Dequeue timeout!");
+               } else if (test_vector.op_type != RTE_BBDEV_OP_NONE) {
                        ret = validate_ldpc_dec_op(ops_deq, burst_sz, ref_op,
                                        vector_mask);
                        TEST_ASSERT_SUCCESS(ret, "Validation failed!");
@@ -4630,6 +4639,7 @@ latency_test_enc(struct rte_mempool *mempool,
 
        for (i = 0, dequeued = 0; dequeued < num_to_process; ++i) {
                uint16_t enq = 0, deq = 0;
+               uint32_t time_out = 0;
                bool first_time = true;
                last_time = 0;
 
@@ -4665,13 +4675,19 @@ latency_test_enc(struct rte_mempool *mempool,
                                last_time += rte_rdtsc_precise() - start_time;
                                first_time = false;
                        }
-               } while (unlikely(burst_sz != deq));
+                       time_out++;
+               } while ((burst_sz != deq) && (time_out < TIME_OUT_POLL));
 
                *max_time = RTE_MAX(*max_time, last_time);
                *min_time = RTE_MIN(*min_time, last_time);
                *total_time += last_time;
-
-               if (test_vector.op_type != RTE_BBDEV_OP_NONE) {
+               if (burst_sz != deq) {
+                       ret = TEST_FAILED;
+                       dequeued = num_to_process; /* Force exit */
+                       struct rte_bbdev_info info;
+                       rte_bbdev_info_get(dev_id, &info);
+                       TEST_ASSERT_SUCCESS(ret, "Dequeue timeout!");
+               } else if (test_vector.op_type != RTE_BBDEV_OP_NONE) {
                        ret = validate_enc_op(ops_deq, burst_sz, ref_op);
                        TEST_ASSERT_SUCCESS(ret, "Validation failed!");
                }
-- 
2.37.1