cryptodev: move IV parameters to session

[dpdk.git] / drivers / crypto / aesni_gcm / aesni_gcm_pmd.c

diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
index 61be723..f775829 100644 (file)
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
@@ -104,6 +104,17 @@ aesni_gcm_set_session_parameters(struct aesni_gcm_session *sess,
                return -EINVAL;
        }
 
+       /* Set IV parameters */
+       sess->iv.offset = cipher_xform->cipher.iv.offset;
+       sess->iv.length = cipher_xform->cipher.iv.length;
+
+       /* IV check */
+       if (sess->iv.length != 16 && sess->iv.length != 12 &&
+                       sess->iv.length != 0) {
+               GCM_LOG_ERR("Wrong IV length");
+               return -EINVAL;
+       }
+
        /* Select Crypto operation */
        if (cipher_xform->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT &&
                        auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE)
@@ -221,20 +232,13 @@ process_gcm_crypto_op(struct rte_crypto_op *op,
 
        src = rte_pktmbuf_mtod_offset(m_src, uint8_t *, offset);
 
-       /* sanity checks */
-       if (sym_op->cipher.iv.length != 16 && sym_op->cipher.iv.length != 12 &&
-                       sym_op->cipher.iv.length != 0) {
-               GCM_LOG_ERR("iv");
-               return -1;
-       }
-
        iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
-                               sym_op->cipher.iv.offset);
+                               session->iv.offset);
        /*
         * GCM working in 12B IV mode => 16B pre-counter block we need
         * to set BE LSB to 1, driver expects that 16B is allocated
         */
-       if (sym_op->cipher.iv.length == 12) {
+       if (session->iv.length == 12) {
                uint32_t *iv_padd = (uint32_t *)&(iv_ptr[12]);
                *iv_padd = rte_bswap32(1);
        }