crypto/snow3g: define IV and digest length constants

In order to avoid using magic numbers, macros for
the IV and digest lengths for Snow3G have been added.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>

diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd.c b/drivers/crypto/snow3g/rte_snow3g_pmd.c
index f3e0e66..8bbee8a 100644 (file)
--- a/drivers/crypto/snow3g/rte_snow3g_pmd.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd.c
@@ -42,6 +42,8 @@
 
 #include "rte_snow3g_pmd_private.h"
 
+#define SNOW3G_IV_LENGTH 16
+#define SNOW3G_DIGEST_LENGTH 4
 #define SNOW3G_MAX_BURST 8
 #define BYTE_LEN 8
 
@@ -198,7 +200,7 @@ process_snow3g_cipher_op(struct rte_crypto_op **ops,
 
        for (i = 0; i < num_ops; i++) {
                /* Sanity checks. */
-               if (ops[i]->sym->cipher.iv.length != 16) {
+               if (unlikely(ops[i]->sym->cipher.iv.length != SNOW3G_IV_LENGTH)) {
                        ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
                        SNOW3G_LOG_ERR("iv");
                        break;
@@ -243,13 +245,13 @@ process_snow3g_hash_op(struct rte_crypto_op **ops,
        uint32_t length_in_bits;
 
        for (i = 0; i < num_ops; i++) {
-               if (ops[i]->sym->auth.aad.length != 16) {
+               if (unlikely(ops[i]->sym->auth.aad.length != SNOW3G_IV_LENGTH)) {
                        ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
                        SNOW3G_LOG_ERR("aad");
                        break;
                }
 
-               if (ops[i]->sym->auth.digest.length != 4) {
+               if (unlikely(ops[i]->sym->auth.digest.length != SNOW3G_DIGEST_LENGTH)) {
                        ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
                        SNOW3G_LOG_ERR("digest");
                        break;