[dpdk-dev] [PATCH] app/test: fix aad padding size in SGL operation

[Arek Kusztal]

This commit fixes unnecessary padding of aad for GCM using
scatter-gather list

Fixes: b71990ffa7e4 ("app/test: add SGL tests to cryptodev QAT suite")

Signed-off-by: Arek Kusztal <arkadiuszx.kusz...@intel.com>
---
 app/test/test_cryptodev.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
index ba6bbb5..3eaf1b7 100644
--- a/app/test/test_cryptodev.c
+++ b/app/test/test_cryptodev.c
@@ -5983,7 +5983,7 @@ create_gcm_operation_SGL(enum rte_crypto_cipher_operation 
op,
        const unsigned int iv_len = tdata->iv.len;
        const unsigned int aad_len = tdata->aad.len;
 
-       unsigned int iv_pad_len = 0, aad_buffer_len = 0;
+       unsigned int iv_pad_len = 0;
 
        /* Generate Crypto op data structure */
        ut_params->op = rte_crypto_op_alloc(ts_params->op_mpool,
@@ -6023,17 +6023,15 @@ create_gcm_operation_SGL(enum 
rte_crypto_cipher_operation op,
 
        rte_memcpy(sym_op->cipher.iv.data, tdata->iv.data, iv_pad_len);
 
-       aad_buffer_len = ALIGN_POW2_ROUNDUP(aad_len, 16);
-
        sym_op->auth.aad.data = (uint8_t *)rte_pktmbuf_prepend(
-                       ut_params->ibuf, aad_buffer_len);
+                       ut_params->ibuf, aad_len);
        TEST_ASSERT_NOT_NULL(sym_op->auth.aad.data,
                        "no room to prepend aad");
        sym_op->auth.aad.phys_addr = rte_pktmbuf_mtophys(
                        ut_params->ibuf);
        sym_op->auth.aad.length = aad_len;
 
-       memset(sym_op->auth.aad.data, 0, aad_buffer_len);
+       memset(sym_op->auth.aad.data, 0, aad_len);
        rte_memcpy(sym_op->auth.aad.data, tdata->aad.data, aad_len);
 
        TEST_HEXDUMP(stdout, "iv:", sym_op->cipher.iv.data, iv_pad_len);
@@ -6041,9 +6039,9 @@ create_gcm_operation_SGL(enum rte_crypto_cipher_operation 
op,
                        sym_op->auth.aad.data, aad_len);
 
        sym_op->cipher.data.length = tdata->plaintext.len;
-       sym_op->cipher.data.offset = aad_buffer_len + iv_pad_len;
+       sym_op->cipher.data.offset = aad_len + iv_pad_len;
 
-       sym_op->auth.data.offset = aad_buffer_len + iv_pad_len;
+       sym_op->auth.data.offset = aad_len + iv_pad_len;
        sym_op->auth.data.length = tdata->plaintext.len;
 
        return 0;
-- 
2.1.0