[dpdk-dev] [PATCH v3 4/7] app/crypto-perf: overwrite mbuf when verifying

[Pablo de Lara <pablo.de.lara.guarch@intel.com>]

When running the verify test, mbufs in the pool were
populated with the test vector loaded from a file.
To avoid limiting the number of operations to the pool size,
mbufs will be rewritten with the test vector, before
linking them to the crypto operations.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 app/test-crypto-perf/cperf_options_parsing.c |  7 ------
 app/test-crypto-perf/cperf_test_verify.c     | 35 ++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 7 deletions(-)

diff --git a/app/test-crypto-perf/cperf_options_parsing.c b/app/test-crypto-perf/cperf_options_parsing.c
index d372691..89f86a2 100644
--- a/app/test-crypto-perf/cperf_options_parsing.c
+++ b/app/test-crypto-perf/cperf_options_parsing.c
@@ -944,13 +944,6 @@ cperf_options_check(struct cperf_options *options)
 	}
 
 	if (options->test == CPERF_TEST_TYPE_VERIFY &&
-			options->total_ops > options->pool_sz) {
-		RTE_LOG(ERR, USER1, "Total number of ops must be less than or"
-				" equal to the pool size.\n");
-		return -EINVAL;
-	}
-
-	if (options->test == CPERF_TEST_TYPE_VERIFY &&
 			(options->inc_buffer_size != 0 ||
 			options->buffer_size_count > 1)) {
 		RTE_LOG(ERR, USER1, "Only one buffer size is allowed when "
diff --git a/app/test-crypto-perf/cperf_test_verify.c b/app/test-crypto-perf/cperf_test_verify.c
index ba9621b..dbfa661 100644
--- a/app/test-crypto-perf/cperf_test_verify.c
+++ b/app/test-crypto-perf/cperf_test_verify.c
@@ -187,6 +187,34 @@ cperf_mbuf_create(struct rte_mempool *mempool,
 	return NULL;
 }
 
+static void
+cperf_mbuf_set(struct rte_mbuf *mbuf,
+		const struct cperf_options *options,
+		const struct cperf_test_vector *test_vector)
+{
+	uint32_t segment_sz = options->segment_sz;
+	uint8_t *mbuf_data;
+	uint8_t *test_data =
+			(options->cipher_op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) ?
+					test_vector->plaintext.data :
+					test_vector->ciphertext.data;
+	uint32_t remaining_bytes = options->max_buffer_size;
+
+	while (remaining_bytes) {
+		mbuf_data = rte_pktmbuf_mtod(mbuf, uint8_t *);
+
+		if (remaining_bytes <= segment_sz) {
+			memcpy(mbuf_data, test_data, remaining_bytes);
+			return;
+		}
+
+		memcpy(mbuf_data, test_data, segment_sz);
+		remaining_bytes -= segment_sz;
+		test_data += segment_sz;
+		mbuf = mbuf->next;
+	}
+}
+
 void *
 cperf_verify_test_constructor(struct rte_mempool *sess_mp,
 		uint8_t dev_id, uint16_t qp_id,
@@ -469,6 +497,13 @@ cperf_verify_test_runner(void *test_ctx)
 				ops_needed, ctx->sess, ctx->options,
 				ctx->test_vector, iv_offset);
 
+
+		/* Populate the mbuf with the test vector, for verification */
+		for (i = 0; i < ops_needed; i++)
+			cperf_mbuf_set(ops[i]->sym->m_src,
+					ctx->options,
+					ctx->test_vector);
+
 #ifdef CPERF_LINEARIZATION_ENABLE
 		if (linearize) {
 			/* PMD doesn't support scatter-gather and source buffer
-- 
2.9.4