[dpdk-dev] [PATCH 1/6] app/crypto-perf: set AAD after the crypto operation

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

Instead of prepending the AAD (Additional Authenticated Data)
in the mbuf, it is easier to set after the crypto operation,
as it is a read-only value, like the IV, and then it is not
restricted to the size of the mbuf headroom.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 app/test-crypto-perf/cperf_ops.c             | 16 ++++++++++++----
 app/test-crypto-perf/cperf_test_latency.c    | 16 ++++------------
 app/test-crypto-perf/cperf_test_throughput.c | 15 +++------------
 app/test-crypto-perf/cperf_test_verify.c     | 20 ++++++--------------
 4 files changed, 25 insertions(+), 42 deletions(-)

diff --git a/app/test-crypto-perf/cperf_ops.c b/app/test-crypto-perf/cperf_ops.c
index 88fb972..5be20d9 100644
--- a/app/test-crypto-perf/cperf_ops.c
+++ b/app/test-crypto-perf/cperf_ops.c
@@ -307,6 +307,8 @@ cperf_set_ops_aead(struct rte_crypto_op **ops,
 		uint16_t iv_offset)
 {
 	uint16_t i;
+	uint16_t aad_offset = iv_offset +
+			RTE_ALIGN_CEIL(test_vector->aead_iv.length, 16);
 
 	for (i = 0; i < nb_ops; i++) {
 		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
@@ -318,11 +320,12 @@ cperf_set_ops_aead(struct rte_crypto_op **ops,
 
 		/* AEAD parameters */
 		sym_op->aead.data.length = options->test_buffer_size;
-		sym_op->aead.data.offset =
-				RTE_ALIGN_CEIL(options->aead_aad_sz, 16);
+		sym_op->aead.data.offset = 0;
 
-		sym_op->aead.aad.data = rte_pktmbuf_mtod(bufs_in[i], uint8_t *);
-		sym_op->aead.aad.phys_addr = rte_pktmbuf_mtophys(bufs_in[i]);
+		sym_op->aead.aad.data = rte_crypto_op_ctod_offset(ops[i],
+					uint8_t *, aad_offset);
+		sym_op->aead.aad.phys_addr = rte_crypto_op_ctophys_offset(ops[i],
+					aad_offset);
 
 		if (options->aead_op == RTE_CRYPTO_AEAD_OP_DECRYPT) {
 			sym_op->aead.digest.data = test_vector->digest.data;
@@ -360,6 +363,11 @@ cperf_set_ops_aead(struct rte_crypto_op **ops,
 
 			memcpy(iv_ptr, test_vector->aead_iv.data,
 					test_vector->aead_iv.length);
+
+			/* Copy AAD after the IV */
+			memcpy(ops[i]->sym->aead.aad.data,
+				test_vector->aad.data,
+				test_vector->aad.length);
 		}
 	}
 
diff --git a/app/test-crypto-perf/cperf_test_latency.c b/app/test-crypto-perf/cperf_test_latency.c
index 58b21ab..2a46af9 100644
--- a/app/test-crypto-perf/cperf_test_latency.c
+++ b/app/test-crypto-perf/cperf_test_latency.c
@@ -174,16 +174,6 @@ cperf_mbuf_create(struct rte_mempool *mempool,
 			goto error;
 	}
 
-	if (options->op_type == CPERF_AEAD) {
-		uint8_t *aead = (uint8_t *)rte_pktmbuf_prepend(mbuf,
-			RTE_ALIGN_CEIL(options->aead_aad_sz, 16));
-
-		if (aead == NULL)
-			goto error;
-
-		memcpy(aead, test_vector->aad.data, test_vector->aad.length);
-	}
-
 	return mbuf;
 error:
 	if (mbuf != NULL)
@@ -289,10 +279,12 @@ cperf_latency_test_constructor(struct rte_mempool *sess_mp,
 	snprintf(pool_name, sizeof(pool_name), "cperf_op_pool_cdev_%d",
 			dev_id);
 
-	uint16_t priv_size = sizeof(struct priv_op_data) +
+	uint16_t priv_size = RTE_ALIGN_CEIL(sizeof(struct priv_op_data) +
 			test_vector->cipher_iv.length +
 			test_vector->auth_iv.length +
-			test_vector->aead_iv.length;
+			test_vector->aead_iv.length, 16) +
+			RTE_ALIGN_CEIL(options->aead_aad_sz, 16);
+
 	ctx->crypto_op_pool = rte_crypto_op_pool_create(pool_name,
 			RTE_CRYPTO_OP_TYPE_SYMMETRIC, options->pool_sz,
 			512, priv_size, rte_socket_id());
diff --git a/app/test-crypto-perf/cperf_test_throughput.c b/app/test-crypto-perf/cperf_test_throughput.c
index 3bb1cb0..07aea6a 100644
--- a/app/test-crypto-perf/cperf_test_throughput.c
+++ b/app/test-crypto-perf/cperf_test_throughput.c
@@ -158,16 +158,6 @@ cperf_mbuf_create(struct rte_mempool *mempool,
 			goto error;
 	}
 
-	if (options->op_type == CPERF_AEAD) {
-		uint8_t *aead = (uint8_t *)rte_pktmbuf_prepend(mbuf,
-			RTE_ALIGN_CEIL(options->aead_aad_sz, 16));
-
-		if (aead == NULL)
-			goto error;
-
-		memcpy(aead, test_vector->aad.data, test_vector->aad.length);
-	}
-
 	return mbuf;
 error:
 	if (mbuf != NULL)
@@ -270,8 +260,9 @@ cperf_throughput_test_constructor(struct rte_mempool *sess_mp,
 	snprintf(pool_name, sizeof(pool_name), "cperf_op_pool_cdev_%d",
 			dev_id);
 
-	uint16_t priv_size = test_vector->cipher_iv.length +
-		test_vector->auth_iv.length + test_vector->aead_iv.length;
+	uint16_t priv_size = RTE_ALIGN_CEIL(test_vector->cipher_iv.length +
+		test_vector->auth_iv.length + test_vector->aead_iv.length, 16) +
+		RTE_ALIGN_CEIL(options->aead_aad_sz, 16);
 
 	ctx->crypto_op_pool = rte_crypto_op_pool_create(pool_name,
 			RTE_CRYPTO_OP_TYPE_SYMMETRIC, options->pool_sz,
diff --git a/app/test-crypto-perf/cperf_test_verify.c b/app/test-crypto-perf/cperf_test_verify.c
index a314646..bc07eb6 100644
--- a/app/test-crypto-perf/cperf_test_verify.c
+++ b/app/test-crypto-perf/cperf_test_verify.c
@@ -162,16 +162,6 @@ cperf_mbuf_create(struct rte_mempool *mempool,
 			goto error;
 	}
 
-	if (options->op_type == CPERF_AEAD) {
-		uint8_t *aead = (uint8_t *)rte_pktmbuf_prepend(mbuf,
-			RTE_ALIGN_CEIL(options->aead_aad_sz, 16));
-
-		if (aead == NULL)
-			goto error;
-
-		memcpy(aead, test_vector->aad.data, test_vector->aad.length);
-	}
-
 	return mbuf;
 error:
 	if (mbuf != NULL)
@@ -274,8 +264,10 @@ cperf_verify_test_constructor(struct rte_mempool *sess_mp,
 	snprintf(pool_name, sizeof(pool_name), "cperf_op_pool_cdev_%d",
 			dev_id);
 
-	uint16_t priv_size = test_vector->cipher_iv.length +
-		test_vector->auth_iv.length + test_vector->aead_iv.length;
+	uint16_t priv_size = RTE_ALIGN_CEIL(test_vector->cipher_iv.length +
+		test_vector->auth_iv.length + test_vector->aead_iv.length, 16) +
+		RTE_ALIGN_CEIL(options->aead_aad_sz, 16);
+
 	ctx->crypto_op_pool = rte_crypto_op_pool_create(pool_name,
 			RTE_CRYPTO_OP_TYPE_SYMMETRIC, options->pool_sz,
 			512, priv_size, rte_socket_id());
@@ -362,9 +354,9 @@ cperf_verify_op(struct rte_crypto_op *op,
 		break;
 	case CPERF_AEAD:
 		cipher = 1;
-		cipher_offset = vector->aad.length;
+		cipher_offset = 0;
 		auth = 1;
-		auth_offset = vector->aad.length + options->test_buffer_size;
+		auth_offset = options->test_buffer_size;
 		break;
 	}
 
-- 
2.9.4