app/crypto-perf: fix crypto operation resubmission

This patch fixes the crypto operation resubmission problem in crypto
perferformance test. Originally, when needed crypto ops amount is
smaller than the enqueued crypto ops in the last round, one or more
processed crypto operations will be re-enqueued.

Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")
Cc: stable@dpdk.org
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

diff --git a/app/test-crypto-perf/cperf_test_throughput.c b/app/test-crypto-perf/cperf_test_throughput.c
index 70ec4ff..61b27ea 100644 (file)
--- a/app/test-crypto-perf/cperf_test_throughput.c
+++ b/app/test-crypto-perf/cperf_test_throughput.c
@@ -348,6 +348,19 @@ cperf_throughput_test_runner(void *test_ctx)
                                        ops_needed, ctx->sess, ctx->options,
                                        ctx->test_vector);
 
+                       /**
+                        * 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);
+                       }
+
 #ifdef CPERF_LINEARIZATION_ENABLE
                        if (linearize) {
                                /* PMD doesn't support scatter-gather and source buffer