[PATCH v2 04/14] crypto/dpaa2_sec: fix length for chain FD in raw sec driver

[Gagandeep Singh <g.singh@nxp.com>]

DPAA2 sec raw driver is calculating the wrong lengths while
creating the FD for chain.
This patch fixes lengths for chain FD.

Fixes: aa6ec1fd8443 ("crypto/dpaa2_sec: support authenc with raw buffer API")
Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 drivers/crypto/dpaa2_sec/dpaa2_sec_raw_dp.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_raw_dp.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_raw_dp.c
index 74f2045637..e68a4875dd 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_raw_dp.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_raw_dp.c
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2021 NXP
+ * Copyright 2021-2022 NXP
  */
 
 #include <cryptodev_pmd.h>
@@ -44,8 +44,8 @@ build_raw_dp_chain_fd(uint8_t *drv_ctx,
 	uint16_t auth_hdr_len = ofs.ofs.cipher.head -
 				ofs.ofs.auth.head;
 
-	uint16_t auth_tail_len = ofs.ofs.auth.tail;
-	uint32_t auth_only_len = (auth_tail_len << 16) | auth_hdr_len;
+	uint16_t auth_tail_len;
+	uint32_t auth_only_len;
 	int icv_len = sess->digest_length;
 	uint8_t *old_icv;
 	uint8_t *iv_ptr = iv->va;
@@ -55,6 +55,8 @@ build_raw_dp_chain_fd(uint8_t *drv_ctx,
 
 	cipher_len = data_len - ofs.ofs.cipher.head - ofs.ofs.cipher.tail;
 	auth_len = data_len - ofs.ofs.auth.head - ofs.ofs.auth.tail;
+	auth_tail_len = auth_len - cipher_len - auth_hdr_len;
+	auth_only_len = (auth_tail_len << 16) | auth_hdr_len;
 	/* first FLE entry used to store session ctxt */
 	fle = (struct qbman_fle *)rte_malloc(NULL,
 			FLE_SG_MEM_SIZE(2 * sgl->num),
@@ -104,6 +106,7 @@ build_raw_dp_chain_fd(uint8_t *drv_ctx,
 			DPAA2_SET_FLE_OFFSET(sge, 0);
 			sge->length = dest_sgl->vec[i].len;
 		}
+		sge->length -= ofs.ofs.cipher.tail;
 	} else {
 		/* Configure Output SGE for Encap/Decap */
 		DPAA2_SET_FLE_ADDR(sge, sgl->vec[0].iova);
@@ -117,6 +120,7 @@ build_raw_dp_chain_fd(uint8_t *drv_ctx,
 			DPAA2_SET_FLE_OFFSET(sge, 0);
 			sge->length = sgl->vec[i].len;
 		}
+		sge->length -= ofs.ofs.cipher.tail;
 	}
 
 	if (sess->dir == DIR_ENC) {
-- 
2.25.1