[dpdk-dev] [PATCH v2 8/8] test/crypto: do not allocate extra memory for digest

[Pablo de Lara]

Now that PMDs do not need extra space in the mbuf
to store temporarily the digest when verifying
an authentication tag, it is not required to allocate
more memory in the mbufs passed to cryptodev.

Signed-off-by: Pablo de Lara <pablo.de.lara.gua...@intel.com>
---
 test/test/test_cryptodev_blockcipher.c | 29 ++---------------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/test/test/test_cryptodev_blockcipher.c 
b/test/test/test_cryptodev_blockcipher.c
index 6089af4..f8222bd 100644
--- a/test/test/test_cryptodev_blockcipher.c
+++ b/test/test/test_cryptodev_blockcipher.c
@@ -452,25 +452,13 @@ test_blockcipher_one_case(const struct 
blockcipher_test_case *t,
        if (t->feature_mask & BLOCKCIPHER_TEST_FEATURE_OOP) {
                struct rte_mbuf *mbuf;
                uint8_t value;
-               uint32_t head_unchanged_len = 0, changed_len = 0;
+               uint32_t head_unchanged_len, changed_len = 0;
                uint32_t i;
 
                mbuf = sym_op->m_src;
-               if (t->op_mask & BLOCKCIPHER_TEST_OP_AUTH_VERIFY) {
-                       /* white-box test: PMDs use some of the
-                        * tailroom as temp storage in verify case
-                        */
-                       head_unchanged_len = rte_pktmbuf_headroom(mbuf)
-                                       + rte_pktmbuf_data_len(mbuf);
-                       changed_len = digest_len;
-               } else {
-                       head_unchanged_len = mbuf->buf_len;
-                       changed_len = 0;
-               }
+               head_unchanged_len = mbuf->buf_len;
 
                for (i = 0; i < mbuf->buf_len; i++) {
-                       if (i == head_unchanged_len)
-                               i += changed_len;
                        value = *((uint8_t *)(mbuf->buf_addr)+i);
                        if (value != tmp_src_buf[i]) {
                                snprintf(test_msg, BLOCKCIPHER_TEST_MSG_LEN,
@@ -531,19 +519,6 @@ test_blockcipher_one_case(const struct 
blockcipher_test_case *t,
                if (t->op_mask & BLOCKCIPHER_TEST_OP_AUTH_GEN)
                        changed_len += digest_len;
 
-               if (t->op_mask & BLOCKCIPHER_TEST_OP_AUTH_VERIFY) {
-                       /* white-box test: PMDs use some of the
-                        * tailroom as temp storage in verify case
-                        */
-                       if (t->op_mask & BLOCKCIPHER_TEST_OP_CIPHER) {
-                               /* This is simplified, not checking digest*/
-                               changed_len += digest_len*2;
-                       } else {
-                               head_unchanged_len += digest_len;
-                               changed_len += digest_len;
-                       }
-               }
-
                for (i = 0; i < mbuf->buf_len; i++) {
                        if (i == head_unchanged_len)
                                i += changed_len;
-- 
2.9.4