[dpdk-dev] [PATCH] crypto/qat: fix NULL cipher algo for non 8-byte multiple

[Fiona Trahe]

NULL cipher algo of 4-byte multiple and other sizes caused firmware hang
due to use of wrong mode. Changed from ECB mode to CTR mode to fix.

Fixes: 98f060891615 ("crypto/qat: add symmetric session file")
cc: sta...@dpdk.org

Signed-off-by: Fiona Trahe <fiona.tr...@intel.com>
---
 drivers/crypto/qat/qat_sym_session.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/qat/qat_sym_session.c 
b/drivers/crypto/qat/qat_sym_session.c
index 5cc86f554..f66175d03 100644
--- a/drivers/crypto/qat/qat_sym_session.c
+++ b/drivers/crypto/qat/qat_sym_session.c
@@ -242,7 +242,8 @@ qat_sym_session_configure_cipher(struct rte_cryptodev *dev,
                session->qat_mode = ICP_QAT_HW_CIPHER_ECB_MODE;
                break;
        case RTE_CRYPTO_CIPHER_NULL:
-               session->qat_mode = ICP_QAT_HW_CIPHER_ECB_MODE;
+               session->qat_cipher_alg = ICP_QAT_HW_CIPHER_ALGO_NULL;
+               session->qat_mode = ICP_QAT_HW_CIPHER_CTR_MODE;
                break;
        case RTE_CRYPTO_CIPHER_KASUMI_F8:
                if (qat_sym_validate_kasumi_key(cipher_xform->key.length,
-- 
2.13.6