[PATCH v2] app/test-crypto-perf: add missed resubmission fix

[Suanming Mou <suanmingm@nvidia.com>]

Currently, after enqueue_burst, there may be ops_unused ops
left for next round enqueue. And in next round preparation,
only ops_needed ops will be added. But if in the final round
the left ops is less than ops_needed, there will be invalid
ops between the new needed ops and previous unused ops. The
previous unused ops should be moved front after the needed
ops.

In the commit[1], an resubmission fix was added to throughput
test, and the fix was missed for verify.

This commit adds the missed resubmission fix for verify.

[1]
commit 44e2980b70d1 ("app/crypto-perf: fix crypto operation resubmission")

Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")

Cc: stable@dpdk.org

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>

Acked-by: Anoob Joseph <anoobj@marvell.com>
---

v2: code-style update.

---
 app/test-crypto-perf/cperf_test_verify.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/app/test-crypto-perf/cperf_test_verify.c b/app/test-crypto-perf/cperf_test_verify.c
index 2b0d3f142b..10172a53a0 100644
--- a/app/test-crypto-perf/cperf_test_verify.c
+++ b/app/test-crypto-perf/cperf_test_verify.c
@@ -275,7 +275,6 @@ cperf_verify_test_runner(void *test_ctx)
 				ops_needed, ctx->sess, ctx->options,
 				ctx->test_vector, iv_offset, &imix_idx, NULL);
 
-
 		/* Populate the mbuf with the test vector, for verification */
 		for (i = 0; i < ops_needed; i++)
 			cperf_mbuf_set(ops[i]->sym->m_src,
@@ -293,6 +292,17 @@ cperf_verify_test_runner(void *test_ctx)
 		}
 #endif /* CPERF_LINEARIZATION_ENABLE */
 
+		/**
+		 * When ops_needed is smaller than ops_enqd, the
+		 * unused ops need to be moved to the front for
+		 * next round use.
+		 */
+		if (unlikely(ops_enqd > ops_needed)) {
+			size_t nb_b_to_mov = ops_unused * sizeof(struct rte_crypto_op *);
+
+			memmove(&ops[ops_needed], &ops[ops_enqd], nb_b_to_mov);
+		}
+
 		/* Enqueue burst of ops on crypto device */
 		ops_enqd = rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id,
 				ops, burst_size);
-- 
2.34.1