[dpdk-dev] [dpdk-dev v1] test/crypto: maxlen calculation update

[Kai Ji <kai.ji@intel.com>]

Update the calculation of the max length needed when converting mbuf to
data vec in partial digest test case. This update make sure the enough
vec buffers are allocated for the appended digest in sgl op for QAT raw
datapath api.

Fixes: 4868f6591c6f ("test/crypto: add cases for raw datapath API")
Cc: roy.fan.zhang@intel.com

Signed-off-by: Kai Ji <kai.ji@intel.com>
---
 app/test/test_cryptodev.c | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
index 16d770a17f..ea46911648 100644
--- a/app/test/test_cryptodev.c
+++ b/app/test/test_cryptodev.c
@@ -167,6 +167,10 @@ post_process_raw_dp_op(void *user_data,	uint32_t index __rte_unused,
 			RTE_CRYPTO_OP_STATUS_ERROR;
 }
 
+static struct crypto_testsuite_params testsuite_params = { NULL };
+struct crypto_testsuite_params *p_testsuite_params = &testsuite_params;
+static struct crypto_unittest_params unittest_params;
+
 void
 process_sym_raw_dp_op(uint8_t dev_id, uint16_t qp_id,
 		struct rte_crypto_op *op, uint8_t is_cipher, uint8_t is_auth,
@@ -181,6 +185,7 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t qp_id,
 	struct rte_crypto_sgl sgl;
 	uint32_t max_len;
 	union rte_cryptodev_session_ctx sess;
+	uint64_t auth_end_iova;
 	uint32_t count = 0;
 	struct rte_crypto_raw_dp_ctx *ctx;
 	uint32_t cipher_offset = 0, cipher_len = 0, auth_offset = 0,
@@ -190,6 +195,9 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t qp_id,
 	int ctx_service_size;
 	int32_t status = 0;
 	int enqueue_status, dequeue_status;
+	struct crypto_unittest_params *ut_params = &unittest_params;
+	/* oop is not supported in raw hw dp api*/
+	int is_sgl = sop->m_src->nb_segs > 1;
 
 	ctx_service_size = rte_cryptodev_get_raw_dp_ctx_size(dev_id);
 	if (ctx_service_size < 0) {
@@ -255,6 +263,29 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t qp_id,
 		digest.va = (void *)sop->auth.digest.data;
 		digest.iova = sop->auth.digest.phys_addr;
 
+		if (is_sgl) {
+			uint32_t remaining_off = auth_offset + auth_len;
+			struct rte_mbuf *sgl_buf = sop->m_src;
+
+			while (remaining_off >= rte_pktmbuf_data_len(sgl_buf)
+					&& sgl_buf->next != NULL) {
+				remaining_off -= rte_pktmbuf_data_len(sgl_buf);
+				sgl_buf = sgl_buf->next;
+			}
+
+			auth_end_iova = (uint64_t)rte_pktmbuf_iova_offset(
+				sgl_buf, remaining_off);
+		} else {
+			/* oop is not supported in raw hw dp api */
+			auth_end_iova = rte_pktmbuf_iova(op->sym->m_src) +
+							 auth_offset + auth_len;
+		}
+		/* Then check if digest-encrypted conditions are met */
+		if ((auth_offset + auth_len < cipher_offset + cipher_len) &&
+				(digest.iova == auth_end_iova) && is_sgl)
+			max_len = RTE_MAX(max_len, auth_offset + auth_len +
+				ut_params->auth_xform.auth.digest_length);
+
 	} else if (is_cipher) {
 		cipher_offset = sop->cipher.data.offset;
 		cipher_len = sop->cipher.data.length;
@@ -477,10 +508,6 @@ process_crypto_request(uint8_t dev_id, struct rte_crypto_op *op)
 	return op;
 }
 
-static struct crypto_testsuite_params testsuite_params = { NULL };
-struct crypto_testsuite_params *p_testsuite_params = &testsuite_params;
-static struct crypto_unittest_params unittest_params;
-
 static int
 testsuite_setup(void)
 {
-- 
2.17.1