cryptodev: pass IV as offset

[dpdk.git] / examples / l2fwd-crypto / main.c

diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 779b4fb..c810b48 100644 (file)
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2015-2017 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -89,6 +89,10 @@ enum cdev_type {
 #define MAX_PKT_BURST 32
 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 
+#define MAXIMUM_IV_LENGTH      16
+#define IV_OFFSET              (sizeof(struct rte_crypto_op) + \
+                               sizeof(struct rte_crypto_sym_op))
+
 /*
  * Configurable number of RX/TX ring descriptors
  */
@@ -480,8 +484,12 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
        }
 
        if (cparams->do_cipher) {
-               op->sym->cipher.iv.data = cparams->iv.data;
-               op->sym->cipher.iv.phys_addr = cparams->iv.phys_addr;
+               uint8_t *iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
+                                                       IV_OFFSET);
+               /* Copy IV at the end of the crypto operation */
+               rte_memcpy(iv_ptr, cparams->iv.data, cparams->iv.length);
+
+               op->sym->cipher.iv.offset = IV_OFFSET;
                op->sym->cipher.iv.length = cparams->iv.length;
 
                /* For wireless algorithms, offset/length must be in bits */
@@ -690,7 +698,6 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
                if (port_cparams[i].do_cipher) {
                        port_cparams[i].iv.data = options->iv.data;
                        port_cparams[i].iv.length = options->iv.length;
-                       port_cparams[i].iv.phys_addr = options->iv.phys_addr;
                        if (!options->iv_param)
                                generate_random_key(port_cparams[i].iv.data,
                                                port_cparams[i].iv.length);
@@ -1950,7 +1957,6 @@ reserve_key_memory(struct l2fwd_crypto_options *options)
        options->iv.data = rte_malloc("iv", MAX_KEY_SIZE, 0);
        if (options->iv.data == NULL)
                rte_exit(EXIT_FAILURE, "Failed to allocate memory for IV");
-       options->iv.phys_addr = rte_malloc_virt2phy(options->iv.data);
 
        options->aad.data = rte_malloc("aad", MAX_KEY_SIZE, 0);
        if (options->aad.data == NULL)
@@ -1993,7 +1999,7 @@ main(int argc, char **argv)
 
        /* create crypto op pool */
        l2fwd_crypto_op_pool = rte_crypto_op_pool_create("crypto_op_pool",
-                       RTE_CRYPTO_OP_TYPE_SYMMETRIC, NB_MBUF, 128, 0,
+                       RTE_CRYPTO_OP_TYPE_SYMMETRIC, NB_MBUF, 128, MAXIMUM_IV_LENGTH,
                        rte_socket_id());
        if (l2fwd_crypto_op_pool == NULL)
                rte_exit(EXIT_FAILURE, "Cannot create crypto op pool\n");