crypto: introduce async crypto infra

Type: feature

Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Signed-off-by: Dariusz Kazimierski <dariuszx.kazimierski@intel.com>
Signed-off-by: Piotr Kleski <piotrx.kleski@intel.com>
Change-Id: I4c3fcccf55c36842b7b48aed260fef2802b5c54b

5 files changed, 1435 insertions, 9 deletions

diff --git a/src/plugins/dpdk/CMakeLists.txt b/src/plugins/dpdk/CMakeLists.txt
index af8c80d8fa3..e51d66b5866 100644
--- a/src/plugins/dpdk/CMakeLists.txt
+++ b/src/plugins/dpdk/CMakeLists.txt
@@ -130,6 +130,7 @@ add_vpp_plugin(dpdk
   ipsec/esp_decrypt.c
   ipsec/esp_encrypt.c
   ipsec/ipsec.c
+  cryptodev/cryptodev.c
 
   MULTIARCH_SOURCES
   buffer.c
diff --git a/src/plugins/dpdk/cryptodev/cryptodev.c b/src/plugins/dpdk/cryptodev/cryptodev.c
new file mode 100644
index 00000000000..0506ab8373b
--- /dev/null
+++ b/src/plugins/dpdk/cryptodev/cryptodev.c
@@ -0,0 +1,1377 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2020 Intel and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#include <vlib/vlib.h>
+#include <vnet/plugin/plugin.h>
+#include <vnet/crypto/crypto.h>
+#include <vnet/vnet.h>
+#include <vpp/app/version.h>
+
+#include <dpdk/buffer.h>
+#include <dpdk/device/dpdk.h>
+#include <dpdk/device/dpdk_priv.h>
+#include <rte_bus_vdev.h>
+#include <rte_cryptodev.h>
+#include <rte_crypto_sym.h>
+#include <rte_crypto.h>
+#include <rte_cryptodev_pmd.h>
+#include <rte_config.h>
+
+#define CRYPTODEV_NB_CRYPTO_OPS 1024
+#define CRYPTODEV_NB_SESSION    10240
+#define CRYPTODEV_DEF_DRIVE	crypto_aesni_mb
+
+#define CRYPTODEV_IV_OFFSET (offsetof (cryptodev_op_t, iv))
+#define CRYPTODEV_AAD_OFFSET (offsetof (cryptodev_op_t, aad))
+#define CRYPTODEV_DIGEST_OFFSET (offsetof (cryptodev_op_t, digest))
+
+/* VNET_CRYPTO_ALGO, TYPE, DPDK_CRYPTO_ALGO, IV_LEN, TAG_LEN, AAD_LEN */
+#define foreach_vnet_aead_crypto_conversion \
+  _(AES_128_GCM, AEAD, AES_GCM, 12, 16, 8)  \
+  _(AES_128_GCM, AEAD, AES_GCM, 12, 16, 12) \
+  _(AES_192_GCM, AEAD, AES_GCM, 12, 16, 8)  \
+  _(AES_192_GCM, AEAD, AES_GCM, 12, 16, 12) \
+  _(AES_256_GCM, AEAD, AES_GCM, 12, 16, 8)  \
+  _(AES_256_GCM, AEAD, AES_GCM, 12, 16, 12)
+
+/**
+ * crypto (alg, cryptodev_alg), hash (alg, digest-size)
+ **/
+#define foreach_cryptodev_link_async_alg	\
+  _ (AES_128_CBC, AES_CBC, SHA1, 12)		\
+  _ (AES_192_CBC, AES_CBC, SHA1, 12)		\
+  _ (AES_256_CBC, AES_CBC, SHA1, 12)		\
+  _ (AES_128_CBC, AES_CBC, SHA224, 14)		\
+  _ (AES_192_CBC, AES_CBC, SHA224, 14)		\
+  _ (AES_256_CBC, AES_CBC, SHA224, 14)		\
+  _ (AES_128_CBC, AES_CBC, SHA256, 16)		\
+  _ (AES_192_CBC, AES_CBC, SHA256, 16)		\
+  _ (AES_256_CBC, AES_CBC, SHA256, 16)		\
+  _ (AES_128_CBC, AES_CBC, SHA384, 24)		\
+  _ (AES_192_CBC, AES_CBC, SHA384, 24)		\
+  _ (AES_256_CBC, AES_CBC, SHA384, 24)		\
+  _ (AES_128_CBC, AES_CBC, SHA512, 32)		\
+  _ (AES_192_CBC, AES_CBC, SHA512, 32)		\
+  _ (AES_256_CBC, AES_CBC, SHA512, 32)
+
+#define foreach_vnet_crypto_status_conversion \
+  _(SUCCESS, COMPLETED)                       \
+  _(NOT_PROCESSED, WORK_IN_PROGRESS)          \
+  _(AUTH_FAILED, FAIL_BAD_HMAC)               \
+  _(INVALID_SESSION, FAIL_ENGINE_ERR)         \
+  _(INVALID_ARGS, FAIL_ENGINE_ERR)            \
+  _(ERROR, FAIL_ENGINE_ERR)
+
+static const vnet_crypto_op_status_t cryptodev_status_conversion[] = {
+#define _(a, b) VNET_CRYPTO_OP_STATUS_##b,
+  foreach_vnet_crypto_status_conversion
+#undef _
+};
+
+typedef struct
+{
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+  struct rte_crypto_op op;
+  struct rte_crypto_sym_op sop;
+  u8 iv[16];
+  u8 aad[16];
+  vnet_crypto_async_frame_t *frame;
+  u32 n_elts;
+} cryptodev_op_t;
+
+typedef enum
+{
+  CRYPTODEV_OP_TYPE_ENCRYPT = 0,
+  CRYPTODEV_OP_TYPE_DECRYPT,
+  CRYPTODEV_N_OP_TYPES,
+} cryptodev_op_type_t;
+
+typedef struct
+{
+  struct rte_cryptodev_sym_session *keys[CRYPTODEV_N_OP_TYPES];
+} cryptodev_key_t;
+
+typedef struct
+{
+  u32 dev_id;
+  u32 q_id;
+  char *desc;
+} cryptodev_inst_t;
+
+typedef struct
+{
+  struct rte_mempool *cop_pool;
+  struct rte_mempool *sess_pool;
+  struct rte_mempool *sess_priv_pool;
+} cryptodev_numa_data_t;
+
+typedef struct
+{
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+  u16 cryptodev_id;
+  u16 cryptodev_q;
+  u32 inflight;
+  cryptodev_op_t **cops;
+  struct rte_ring *ring;
+} cryptodev_engine_thread_t;
+
+typedef struct
+{
+  cryptodev_numa_data_t *per_numa_data;
+  cryptodev_key_t *keys;
+  cryptodev_engine_thread_t *per_thread_data;
+  cryptodev_inst_t *cryptodev_inst;
+  clib_bitmap_t *active_cdev_inst_mask;
+  clib_spinlock_t tlock;
+} cryptodev_main_t;
+
+cryptodev_main_t cryptodev_main;
+
+static int
+prepare_aead_xform (struct rte_crypto_sym_xform *xform,
+		    cryptodev_op_type_t op_type,
+		    const vnet_crypto_key_t * key, u32 aad_len)
+{
+  struct rte_crypto_aead_xform *aead_xform = &xform->aead;
+  memset (xform, 0, sizeof (*xform));
+  xform->type = RTE_CRYPTO_SYM_XFORM_AEAD;
+  xform->next = 0;
+
+  if (key->alg != VNET_CRYPTO_ALG_AES_128_GCM &&
+      key->alg != VNET_CRYPTO_ALG_AES_192_GCM &&
+      key->alg != VNET_CRYPTO_ALG_AES_256_GCM)
+    return -1;
+
+  aead_xform->algo = RTE_CRYPTO_AEAD_AES_GCM;
+  aead_xform->op = (op_type == CRYPTODEV_OP_TYPE_ENCRYPT) ?
+    RTE_CRYPTO_AEAD_OP_ENCRYPT : RTE_CRYPTO_AEAD_OP_DECRYPT;
+  aead_xform->aad_length = aad_len;
+  aead_xform->digest_length = 16;
+  aead_xform->iv.offset = CRYPTODEV_IV_OFFSET;
+  aead_xform->iv.length = 12;
+  aead_xform->key.data = key->data;
+  aead_xform->key.length = vec_len (key->data);
+
+  return 0;
+}
+
+static int
+prepare_linked_xform (struct rte_crypto_sym_xform *xforms,
+		      cryptodev_op_type_t op_type,
+		      const vnet_crypto_key_t * key)
+{
+  struct rte_crypto_sym_xform *xform_cipher, *xform_auth;
+  vnet_crypto_key_t *key_cipher, *key_auth;
+  enum rte_crypto_cipher_algorithm cipher_algo = ~0;
+  enum rte_crypto_auth_algorithm auth_algo = ~0;
+  u32 digest_len = ~0;
+
+  key_cipher = vnet_crypto_get_key (key->index_crypto);
+  key_auth = vnet_crypto_get_key (key->index_integ);
+  if (!key_cipher || !key_auth)
+    return -1;
+
+  if (op_type == CRYPTODEV_OP_TYPE_ENCRYPT)
+    {
+      xform_cipher = xforms;
+      xform_auth = xforms + 1;
+      xform_cipher->cipher.op = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
+      xform_auth->auth.op = RTE_CRYPTO_AUTH_OP_GENERATE;
+    }
+  else
+    {
+      xform_cipher = xforms + 1;
+      xform_auth = xforms;
+      xform_cipher->cipher.op = RTE_CRYPTO_CIPHER_OP_DECRYPT;
+      xform_auth->auth.op = RTE_CRYPTO_AUTH_OP_VERIFY;
+    }
+
+  xform_cipher->type = RTE_CRYPTO_SYM_XFORM_CIPHER;
+  xform_auth->type = RTE_CRYPTO_SYM_XFORM_AUTH;
+  xforms->next = xforms + 1;
+
+  switch (key->async_alg)
+    {
+#define _(a, b, c, d) \
+  case VNET_CRYPTO_ALG_##a##_##c##_TAG##d:\
+    cipher_algo = RTE_CRYPTO_CIPHER_##b; \
+    auth_algo = RTE_CRYPTO_AUTH_##c##_HMAC; \
+    digest_len = d; \
+    break;
+
+      foreach_cryptodev_link_async_alg
+#undef _
+    default:
+      return -1;
+    }
+
+  xform_cipher->cipher.algo = cipher_algo;
+  xform_cipher->cipher.key.data = key_cipher->data;
+  xform_cipher->cipher.key.length = vec_len (key_cipher->data);
+  xform_cipher->cipher.iv.length = 16;
+  xform_cipher->cipher.iv.offset = CRYPTODEV_IV_OFFSET;
+
+  xform_auth->auth.algo = auth_algo;
+  xform_auth->auth.digest_length = digest_len;
+  xform_auth->auth.key.data = key_auth->data;
+  xform_auth->auth.key.length = vec_len (key_auth->data);
+
+  return 0;
+}
+
+static int
+cryptodev_session_create (vnet_crypto_key_t * const key,
+			  struct rte_mempool *sess_priv_pool,
+			  cryptodev_key_t * session_pair, u32 aad_len)
+{
+  struct rte_crypto_sym_xform xforms_enc[2] = { {0} };
+  struct rte_crypto_sym_xform xforms_dec[2] = { {0} };
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_inst_t *dev_inst;
+  struct rte_cryptodev *cdev;
+  int ret;
+  uint8_t dev_id = 0;
+
+  if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
+    ret = prepare_linked_xform (xforms_enc, CRYPTODEV_OP_TYPE_ENCRYPT, key);
+  else
+    ret = prepare_aead_xform (xforms_enc, CRYPTODEV_OP_TYPE_ENCRYPT, key,
+			      aad_len);
+  if (ret)
+    return 0;
+
+  if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
+    prepare_linked_xform (xforms_dec, CRYPTODEV_OP_TYPE_DECRYPT, key);
+  else
+    prepare_aead_xform (xforms_dec, CRYPTODEV_OP_TYPE_DECRYPT, key, aad_len);
+
+  vec_foreach (dev_inst, cmt->cryptodev_inst)
+  {
+    dev_id = dev_inst->dev_id;
+    cdev = rte_cryptodev_pmd_get_dev (dev_id);
+
+    /* if the session is already configured for the driver type, avoid
+       configuring it again to increase the session data's refcnt */
+    if (session_pair->keys[0]->sess_data[cdev->driver_id].data &&
+	session_pair->keys[1]->sess_data[cdev->driver_id].data)
+      continue;
+
+    ret = rte_cryptodev_sym_session_init (dev_id, session_pair->keys[0],
+					  xforms_enc, sess_priv_pool);
+    ret = rte_cryptodev_sym_session_init (dev_id, session_pair->keys[1],
+					  xforms_dec, sess_priv_pool);
+    if (ret < 0)
+      return ret;
+  }
+  session_pair->keys[0]->opaque_data = aad_len;
+  session_pair->keys[1]->opaque_data = aad_len;
+
+  return 0;
+}
+
+static void
+cryptodev_session_del (struct rte_cryptodev_sym_session *sess)
+{
+  u32 n_devs, i;
+
+  if (sess == NULL)
+    return;
+
+  n_devs = rte_cryptodev_count ();
+
+  for (i = 0; i < n_devs; i++)
+    rte_cryptodev_sym_session_clear (i, sess);
+
+  rte_cryptodev_sym_session_free (sess);
+}
+
+static int
+cryptodev_check_supported_vnet_alg (vnet_crypto_key_t * key)
+{
+  vnet_crypto_alg_t alg;
+  if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
+    return 0;
+
+  alg = key->alg;
+
+#define _(a, b, c, d, e, f)	\
+  if (alg == VNET_CRYPTO_ALG_##a) \
+    return 0;
+
+  foreach_vnet_aead_crypto_conversion
+#undef _
+    return -1;
+}
+
+static_always_inline void
+cryptodev_sess_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop,
+			vnet_crypto_key_index_t idx, u32 aad_len)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa_data;
+  vnet_crypto_key_t *key = vnet_crypto_get_key (idx);
+  struct rte_mempool *sess_pool, *sess_priv_pool;
+  cryptodev_key_t *ckey = 0;
+  int ret = 0;
+
+  if (kop == VNET_CRYPTO_KEY_OP_DEL)
+    {
+      if (idx >= vec_len (cmt->keys))
+	return;
+
+      ckey = pool_elt_at_index (cmt->keys, idx);
+      cryptodev_session_del (ckey->keys[0]);
+      cryptodev_session_del (ckey->keys[1]);
+      ckey->keys[0] = 0;
+      ckey->keys[1] = 0;
+      pool_put (cmt->keys, ckey);
+      return;
+    }
+  else if (kop == VNET_CRYPTO_KEY_OP_MODIFY)
+    {
+      if (idx >= vec_len (cmt->keys))
+	return;
+
+      ckey = pool_elt_at_index (cmt->keys, idx);
+
+      cryptodev_session_del (ckey->keys[0]);
+      cryptodev_session_del (ckey->keys[1]);
+      ckey->keys[0] = 0;
+      ckey->keys[1] = 0;
+    }
+  else				/* create key */
+    pool_get_zero (cmt->keys, ckey);
+
+  /* do not create session for unsupported alg */
+  if (cryptodev_check_supported_vnet_alg (key))
+    return;
+
+  numa_data = vec_elt_at_index (cmt->per_numa_data, vm->numa_node);
+  sess_pool = numa_data->sess_pool;
+  sess_priv_pool = numa_data->sess_priv_pool;
+
+  ckey->keys[0] = rte_cryptodev_sym_session_create (sess_pool);
+  if (!ckey->keys[0])
+    {
+      ret = -1;
+      goto clear_key;
+    }
+
+  ckey->keys[1] = rte_cryptodev_sym_session_create (sess_pool);
+  if (!ckey->keys[1])
+    {
+      ret = -1;
+      goto clear_key;
+    }
+
+  ret = cryptodev_session_create (key, sess_priv_pool, ckey, aad_len);
+
+clear_key:
+  if (ret != 0)
+    {
+      cryptodev_session_del (ckey->keys[0]);
+      cryptodev_session_del (ckey->keys[1]);
+      memset (ckey, 0, sizeof (*ckey));
+      pool_put (cmt->keys, ckey);
+    }
+}
+
+/*static*/ void
+cryptodev_key_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop,
+		       vnet_crypto_key_index_t idx)
+{
+  cryptodev_sess_handler (vm, kop, idx, 8);
+}
+
+static_always_inline void
+cryptodev_mark_frame_err_status (vnet_crypto_async_frame_t * f,
+				 vnet_crypto_op_status_t s)
+{
+  u32 n_elts = f->n_elts, i;
+
+  for (i = 0; i < n_elts; i++)
+    f->elts[i].status = s;
+  f->state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
+}
+
+/* when vlib_buffer in chain is adjusted mbuf is not adjusted along, this
+ * function does that */
+static_always_inline rte_iova_t
+cryptodev_validate_mbuf_chain (vlib_main_t * vm, struct rte_mbuf *mb,
+			       vlib_buffer_t * b, u8 * digest)
+{
+  rte_iova_t digest_iova = 0;
+  struct rte_mbuf *first_mb = mb, *last_mb = mb; /**< last mbuf */
+
+  first_mb->nb_segs = 1;
+
+  while (b->flags & VLIB_BUFFER_NEXT_PRESENT)
+    {
+      b = vlib_get_buffer (vm, b->next_buffer);
+      mb = rte_mbuf_from_vlib_buffer (b);
+      if (PREDICT_FALSE ((b->flags & VLIB_BUFFER_EXT_HDR_VALID) == 0))
+	rte_pktmbuf_reset (mb);
+      last_mb->next = mb;
+      last_mb = mb;
+      mb->data_len = b->current_length;
+      mb->pkt_len = b->current_length;
+      mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data;
+      first_mb->nb_segs++;
+      if (PREDICT_FALSE (b->ref_count > 1))
+	mb->pool =
+	  dpdk_no_cache_mempool_by_buffer_pool_index[b->buffer_pool_index];
+
+      if (b->data <= digest &&
+	  b->data + b->current_data + b->current_length > digest)
+	digest_iova = rte_pktmbuf_iova (mb) + digest -
+	  rte_pktmbuf_mtod (mb, u8 *);
+    }
+
+  return digest_iova;
+}
+
+static_always_inline int
+cryptodev_frame_linked_algs_enqueue (vlib_main_t * vm,
+				     vnet_crypto_async_frame_t * frame,
+				     cryptodev_op_type_t op_type,
+				     u32 digest_len)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa = cmt->per_numa_data + vm->numa_node;
+  cryptodev_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
+  vnet_crypto_async_frame_elt_t *fe;
+  cryptodev_op_t **cop;
+  u32 *bi;
+  u32 n_enqueue, n_elts;
+  cryptodev_key_t *key = 0;
+  u32 last_key_index = ~0;
+
+  if (PREDICT_FALSE (frame == 0 || frame->n_elts == 0))
+    return -1;
+  n_elts = frame->n_elts;
+
+  if (PREDICT_FALSE (CRYPTODEV_NB_CRYPTO_OPS - cet->inflight < n_elts))
+    {
+      cryptodev_mark_frame_err_status (frame,
+				       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
+      return -1;
+    }
+
+  if (PREDICT_FALSE (rte_mempool_get_bulk (numa->cop_pool,
+					   (void **) cet->cops, n_elts) < 0))
+    {
+      cryptodev_mark_frame_err_status (frame,
+				       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
+      return -1;
+    }
+
+  cop = cet->cops;
+  fe = frame->elts;
+  bi = frame->buffer_indices;
+  cop[0]->frame = frame;
+  cop[0]->n_elts = n_elts;
+
+  while (n_elts)
+    {
+      vlib_buffer_t *b = vlib_get_buffer (vm, bi[0]);
+      struct rte_crypto_sym_op *sop = &cop[0]->sop;
+      i16 crypto_offset = fe->crypto_start_offset;
+      i16 integ_offset = fe->integ_start_offset;
+      u32 offset_diff = crypto_offset - integ_offset;
+
+      if (n_elts > 2)
+	{
+	  CLIB_PREFETCH (cop[1], CLIB_CACHE_LINE_BYTES * 3, STORE);
+	  CLIB_PREFETCH (cop[2], CLIB_CACHE_LINE_BYTES * 3, STORE);
+	  CLIB_PREFETCH (&fe[1], CLIB_CACHE_LINE_BYTES, LOAD);
+	  CLIB_PREFETCH (&fe[2], CLIB_CACHE_LINE_BYTES, LOAD);
+	}
+      if (last_key_index != fe->key_index)
+	{
+	  key = pool_elt_at_index (cmt->keys, fe->key_index);
+	  last_key_index = fe->key_index;
+	}
+
+      sop->m_src = rte_mbuf_from_vlib_buffer (b);
+      sop->m_dst = 0;
+      /* mbuf prepend happens in the tx, but vlib_buffer happens in the nodes,
+       * so we have to manually adjust mbuf data_off here so cryptodev can
+       * correctly compute the data pointer. The prepend here will be later
+       * rewritten by tx. */
+      if (PREDICT_TRUE (fe->integ_start_offset < 0))
+	{
+	  rte_pktmbuf_prepend (sop->m_src, -fe->integ_start_offset);
+	  integ_offset = 0;
+	  crypto_offset = offset_diff;
+	}
+      sop->session = key->keys[op_type];
+      sop->cipher.data.offset = crypto_offset;
+      sop->cipher.data.length = fe->crypto_total_length;
+      sop->auth.data.offset = integ_offset;
+      sop->auth.data.length = fe->crypto_total_length + fe->integ_length_adj;
+      sop->auth.digest.data = fe->digest;
+      if (PREDICT_TRUE (!(fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)))
+	sop->auth.digest.phys_addr = rte_pktmbuf_iova (sop->m_src) +
+	  fe->digest - rte_pktmbuf_mtod (sop->m_src, u8 *);
+      else
+	sop->auth.digest.phys_addr =
+	  cryptodev_validate_mbuf_chain (vm, sop->m_src, b, fe->digest);
+      clib_memcpy_fast (cop[0]->iv, fe->iv, 16);
+      cop++;
+      bi++;
+      fe++;
+      n_elts--;
+    }
+
+  n_enqueue = rte_cryptodev_enqueue_burst (cet->cryptodev_id,
+					   cet->cryptodev_q,
+					   (struct rte_crypto_op **)
+					   cet->cops, frame->n_elts);
+  ASSERT (n_enqueue == frame->n_elts);
+  cet->inflight += n_enqueue;
+
+  return 0;
+}
+
+static_always_inline int
+cryptodev_frame_gcm_enqueue (vlib_main_t * vm,
+			     vnet_crypto_async_frame_t * frame,
+			     cryptodev_op_type_t op_type, u8 aad_len)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa = cmt->per_numa_data + vm->numa_node;
+  cryptodev_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
+  vnet_crypto_async_frame_elt_t *fe;
+  cryptodev_op_t **cop;
+  u32 *bi;
+  u32 n_enqueue = 0, n_elts;
+  cryptodev_key_t *key = 0;
+  u32 last_key_index = ~0;
+
+  if (PREDICT_FALSE (frame == 0 || frame->n_elts == 0))
+    return -1;
+  n_elts = frame->n_elts;
+
+  if (PREDICT_FALSE (CRYPTODEV_NB_CRYPTO_OPS - cet->inflight < n_elts))
+    {
+      cryptodev_mark_frame_err_status (frame,
+				       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
+      return -1;
+    }
+
+  if (PREDICT_FALSE (rte_mempool_get_bulk (numa->cop_pool,
+					   (void **) cet->cops, n_elts) < 0))
+    {
+      cryptodev_mark_frame_err_status (frame,
+				       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
+      return -1;
+    }
+
+  cop = cet->cops;
+  fe = frame->elts;
+  bi = frame->buffer_indices;
+  cop[0]->frame = frame;
+  cop[0]->n_elts = n_elts;
+  frame->state = VNET_CRYPTO_OP_STATUS_COMPLETED;
+
+  while (n_elts)
+    {
+      vlib_buffer_t *b = vlib_get_buffer (vm, bi[0]);
+      struct rte_crypto_sym_op *sop = &cop[0]->sop;
+      u16 crypto_offset = fe->crypto_start_offset;
+
+      if (n_elts > 2)
+	{
+	  CLIB_PREFETCH (cop[1], CLIB_CACHE_LINE_BYTES * 3, STORE);
+	  CLIB_PREFETCH (cop[2], CLIB_CACHE_LINE_BYTES * 3, STORE);
+	  CLIB_PREFETCH (&fe[1], CLIB_CACHE_LINE_BYTES, LOAD);
+	  CLIB_PREFETCH (&fe[2], CLIB_CACHE_LINE_BYTES, LOAD);
+	}
+      if (last_key_index != fe->key_index)
+	{
+	  u8 sess_aad_len;
+	  key = pool_elt_at_index (cmt->keys, fe->key_index);
+	  sess_aad_len = (u8) key->keys[op_type]->opaque_data;
+	  if (PREDICT_FALSE (sess_aad_len != aad_len))
+	    {
+	      cryptodev_sess_handler (vm, VNET_CRYPTO_KEY_OP_MODIFY,
+				      fe->key_index, aad_len);
+	    }
+	  last_key_index = fe->key_index;
+	}
+
+      sop->m_src = rte_mbuf_from_vlib_buffer (b);
+      sop->m_dst = 0;
+      /* mbuf prepend happens in the tx, but vlib_buffer happens in the nodes,
+       * so we have to manually adjust mbuf data_off here so cryptodev can
+       * correctly compute the data pointer. The prepend here will be later
+       * rewritten by tx. */
+      if (PREDICT_FALSE (fe->crypto_start_offset < 0))
+	{
+	  rte_pktmbuf_prepend (sop->m_src, -fe->crypto_start_offset);
+	  crypto_offset = 0;
+	}
+
+      sop->session = key->keys[op_type];
+      sop->aead.aad.data = cop[0]->aad;
+      sop->aead.aad.phys_addr = cop[0]->op.phys_addr + CRYPTODEV_AAD_OFFSET;
+      sop->aead.data.length = fe->crypto_total_length;
+      sop->aead.data.offset = crypto_offset;
+      sop->aead.digest.data = fe->tag;
+      if (PREDICT_TRUE (!(fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)))
+	sop->aead.digest.phys_addr = rte_pktmbuf_iova (sop->m_src) +
+	  fe->tag - rte_pktmbuf_mtod (sop->m_src, u8 *);
+      else
+	sop->aead.digest.phys_addr =
+	  cryptodev_validate_mbuf_chain (vm, sop->m_src, b, fe->tag);
+      clib_memcpy_fast (cop[0]->iv, fe->iv, 12);
+      clib_memcpy_fast (cop[0]->aad, fe->aad, aad_len);
+      cop++;
+      bi++;
+      fe++;
+      n_elts--;
+    }
+
+  n_enqueue = rte_cryptodev_enqueue_burst (cet->cryptodev_id,
+					   cet->cryptodev_q,
+					   (struct rte_crypto_op **)
+					   cet->cops, frame->n_elts);
+  ASSERT (n_enqueue == frame->n_elts);
+  cet->inflight += n_enqueue;
+
+  return 0;
+}
+
+static_always_inline cryptodev_op_t *
+cryptodev_get_ring_head (struct rte_ring * ring)
+{
+  cryptodev_op_t **r = (void *) &ring[1];
+  return r[ring->cons.head & ring->mask];
+}
+
+static_always_inline vnet_crypto_async_frame_t *
+cryptodev_frame_dequeue (vlib_main_t * vm)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa = cmt->per_numa_data + vm->numa_node;
+  cryptodev_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
+  cryptodev_op_t *cop0, **cop = cet->cops;
+  vnet_crypto_async_frame_elt_t *fe;
+  vnet_crypto_async_frame_t *frame;
+  u32 n_elts, n_completed_ops = rte_ring_count (cet->ring);
+  u32 ss0 = 0, ss1 = 0, ss2 = 0, ss3 = 0;	/* sum of status */
+
+  if (cet->inflight)
+    {
+      n_elts = clib_min (CRYPTODEV_NB_CRYPTO_OPS - n_completed_ops,
+			 VNET_CRYPTO_FRAME_SIZE);
+      n_elts = rte_cryptodev_dequeue_burst
+	(cet->cryptodev_id, cet->cryptodev_q,
+	 (struct rte_crypto_op **) cet->cops, n_elts);
+      cet->inflight -= n_elts;
+      n_completed_ops += n_elts;
+
+      rte_ring_sp_enqueue_burst (cet->ring, (void *) cet->cops, n_elts, NULL);
+    }
+
+  if (PREDICT_FALSE (n_completed_ops == 0))
+    return 0;
+
+  cop0 = cryptodev_get_ring_head (cet->ring);
+  /* not a single frame is finished */
+  if (PREDICT_FALSE (cop0->n_elts > rte_ring_count (cet->ring)))
+    return 0;
+
+  frame = cop0->frame;
+  n_elts = cop0->n_elts;
+  n_elts = rte_ring_sc_dequeue_bulk (cet->ring, (void **) cet->cops,
+				     n_elts, 0);
+  fe = frame->elts;
+
+  while (n_elts > 4)
+    {
+      ss0 |= fe[0].status = cryptodev_status_conversion[cop[0]->op.status];
+      ss1 |= fe[1].status = cryptodev_status_conversion[cop[1]->op.status];
+      ss2 |= fe[2].status = cryptodev_status_conversion[cop[2]->op.status];
+      ss3 |= fe[3].status = cryptodev_status_conversion[cop[3]->op.status];
+
+      cop += 4;
+      fe += 4;
+      n_elts -= 4;
+    }
+
+  while (n_elts)
+    {
+      ss0 |= fe[0].status = cryptodev_status_conversion[cop[0]->op.status];
+      fe++;
+      cop++;
+      n_elts--;
+    }
+
+  frame->state = (ss0 | ss1 | ss2 | ss3) == VNET_CRYPTO_OP_STATUS_COMPLETED ?
+    VNET_CRYPTO_FRAME_STATE_SUCCESS : VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
+
+  rte_mempool_put_bulk (numa->cop_pool, (void **) cet->cops, frame->n_elts);
+
+  return frame;
+}
+
+/* *INDENT-OFF* */
+
+#define _(a, b, c, d, e, f) \
+static_always_inline int \
+cryptodev_enqueue_##a##_AAD##f##_enc (vlib_main_t * vm, \
+				      vnet_crypto_async_frame_t * frame) \
+{ \
+  return cryptodev_frame_gcm_enqueue (vm, frame, \
+				      CRYPTODEV_OP_TYPE_ENCRYPT, f); \
+} \
+static_always_inline int \
+cryptodev_enqueue_##a##_AAD##f##_dec (vlib_main_t * vm, \
+				      vnet_crypto_async_frame_t * frame) \
+{ \
+  return cryptodev_frame_gcm_enqueue (vm, frame, \
+				      CRYPTODEV_OP_TYPE_DECRYPT, f); \
+}
+
+foreach_vnet_aead_crypto_conversion
+#undef _
+
+#define _(a, b, c, d) \
+static_always_inline int \
+cryptodev_enqueue_##a##_##c##_TAG##d##_enc (vlib_main_t * vm, \
+				      vnet_crypto_async_frame_t * frame) \
+{ \
+  return cryptodev_frame_linked_algs_enqueue (vm, frame, \
+					      CRYPTODEV_OP_TYPE_ENCRYPT, d); \
+} \
+static_always_inline int \
+cryptodev_enqueue_##a##_##c##_TAG##d##_dec (vlib_main_t * vm, \
+				      vnet_crypto_async_frame_t * frame) \
+{ \
+  return cryptodev_frame_linked_algs_enqueue (vm, frame, \
+					      CRYPTODEV_OP_TYPE_DECRYPT, d); \
+}
+
+foreach_cryptodev_link_async_alg
+#undef _
+
+typedef enum
+{
+  CRYPTODEV_RESOURCE_ASSIGN_AUTO = 0,
+  CRYPTODEV_RESOURCE_ASSIGN_UPDATE,
+} cryptodev_resource_assign_op_t;
+
+/**
+ *  assign a cryptodev resource to a worker.
+ *  @param cet: the worker thread data
+ *  @param cryptodev_inst_index: if op is "ASSIGN_AUTO" this param is ignored.
+ *  @param op: the assignment method.
+ *  @return: 0 if successfully, negative number otherwise.
+ **/
+static_always_inline int
+cryptodev_assign_resource (cryptodev_engine_thread_t * cet,
+			   u32 cryptodev_inst_index,
+			   cryptodev_resource_assign_op_t op)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_inst_t *cinst = 0;
+  uword idx;
+
+  /* assign resource is only allowed when no inflight op is in the queue */
+  if (cet->inflight)
+    return -EBUSY;
+
+  switch (op)
+    {
+    case CRYPTODEV_RESOURCE_ASSIGN_AUTO:
+      if (clib_bitmap_count_set_bits (cmt->active_cdev_inst_mask) >=
+	  vec_len (cmt->cryptodev_inst))
+	return -1;
+
+      clib_spinlock_lock (&cmt->tlock);
+      idx = clib_bitmap_first_clear (cmt->active_cdev_inst_mask);
+      clib_bitmap_set (cmt->active_cdev_inst_mask, idx, 1);
+      cinst = vec_elt_at_index (cmt->cryptodev_inst, idx);
+      cet->cryptodev_id = cinst->dev_id;
+      cet->cryptodev_q = cinst->q_id;
+      clib_spinlock_unlock (&cmt->tlock);
+      break;
+    case CRYPTODEV_RESOURCE_ASSIGN_UPDATE:
+      /* assigning a used cryptodev resource is not allowed */
+      if (clib_bitmap_get (cmt->active_cdev_inst_mask, cryptodev_inst_index)
+	  == 1)
+	return -EBUSY;
+      vec_foreach_index (idx, cmt->cryptodev_inst)
+      {
+	cinst = cmt->cryptodev_inst + idx;
+	if (cinst->dev_id == cet->cryptodev_id &&
+	    cinst->q_id == cet->cryptodev_q)
+	  break;
+      }
+      /* invalid existing worker resource assignment */
+      if (idx == vec_len (cmt->cryptodev_inst))
+	return -EINVAL;
+      clib_spinlock_lock (&cmt->tlock);
+      clib_bitmap_set_no_check (cmt->active_cdev_inst_mask, idx, 0);
+      clib_bitmap_set_no_check (cmt->active_cdev_inst_mask,
+				cryptodev_inst_index, 1);
+      cinst = cmt->cryptodev_inst + cryptodev_inst_index;
+      cet->cryptodev_id = cinst->dev_id;
+      cet->cryptodev_q = cinst->q_id;
+      clib_spinlock_unlock (&cmt->tlock);
+      break;
+    default:
+      return -EINVAL;
+    }
+  return 0;
+}
+
+static u8 *
+format_cryptodev_inst (u8 * s, va_list * args)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  u32 inst = va_arg (*args, u32);
+  cryptodev_inst_t *cit = cmt->cryptodev_inst + inst;
+  u32 thread_index = 0;
+  struct rte_cryptodev_info info;
+
+  rte_cryptodev_info_get (cit->dev_id, &info);
+  s = format (s, "%-25s%-10u", info.device->name, cit->q_id);
+
+  vec_foreach_index (thread_index, cmt->per_thread_data)
+  {
+    cryptodev_engine_thread_t *cet = cmt->per_thread_data + thread_index;
+    if (vlib_num_workers () > 0 && thread_index == 0)
+      continue;
+
+    if (cet->cryptodev_id == cit->dev_id && cet->cryptodev_q == cit->q_id)
+      {
+	s = format (s, "%u (%v)\n", thread_index,
+		    vlib_worker_threads[thread_index].name);
+	break;
+      }
+  }
+
+  if (thread_index == vec_len (cmt->per_thread_data))
+    s = format (s, "%s\n", "free");
+
+  return s;
+}
+
+static clib_error_t *
+cryptodev_show_assignment_fn (vlib_main_t * vm, unformat_input_t * input,
+			      vlib_cli_command_t * cmd)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  u32 inst;
+
+  vlib_cli_output (vm, "%-5s%-25s%-10s%s\n", "No.", "Name", "Queue-id",
+		   "Assigned-to");
+  if (vec_len (cmt->cryptodev_inst) == 0)
+    {
+      vlib_cli_output (vm, "(nil)\n");
+      return 0;
+    }
+
+  vec_foreach_index (inst, cmt->cryptodev_inst)
+    vlib_cli_output (vm, "%-5u%U", inst, format_cryptodev_inst, inst);
+
+  return 0;
+}
+
+VLIB_CLI_COMMAND (show_cryptodev_assignment, static) = {
+    .path = "show cryptodev assignment",
+    .short_help = "show cryptodev assignment",
+    .function = cryptodev_show_assignment_fn,
+};
+
+static clib_error_t *
+cryptodev_set_assignment_fn (vlib_main_t * vm, unformat_input_t * input,
+			     vlib_cli_command_t * cmd)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_engine_thread_t *cet;
+  unformat_input_t _line_input, *line_input = &_line_input;
+  u32 thread_index, inst_index;
+  u32 thread_present = 0, inst_present = 0;
+  clib_error_t *error = 0;
+  int ret;
+
+  /* Get a line of input. */
+  if (!unformat_user (input, unformat_line_input, line_input))
+    return 0;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (line_input, "thread %u", &thread_index))
+	thread_present = 1;
+      else if (unformat (line_input, "resource %u", &inst_index))
+	inst_present = 1;
+      else
+	{
+	  error = clib_error_return (0, "unknown input `%U'",
+				     format_unformat_error, line_input);
+	  return error;
+	}
+    }
+
+  if (!thread_present || !inst_present)
+    {
+      error = clib_error_return (0, "mandatory argument(s) missing");
+      return error;
+    }
+
+  if (thread_index == 0 && vlib_num_workers () > 0)
+    {
+      error =
+	clib_error_return (0, "assign crypto resource for master thread");
+      return error;
+    }
+
+  if (thread_index > vec_len (cmt->per_thread_data) ||
+      inst_index > vec_len (cmt->cryptodev_inst))
+    {
+      error = clib_error_return (0, "wrong thread id or resource id");
+      return error;
+    }
+
+  cet = cmt->per_thread_data + thread_index;
+  ret = cryptodev_assign_resource (cet, inst_index,
+				   CRYPTODEV_RESOURCE_ASSIGN_UPDATE);
+  if (ret)
+    {
+      error = clib_error_return (0, "cryptodev_assign_resource returned %i",
+				 ret);
+      return error;
+    }
+
+  return 0;
+}
+
+VLIB_CLI_COMMAND (set_cryptodev_assignment, static) = {
+    .path = "set cryptodev assignment",
+    .short_help = "set cryptodev assignment thread <thread_index> "
+	"resource <inst_index>",
+    .function = cryptodev_set_assignment_fn,
+};
+
+static int
+check_cryptodev_alg_support (u32 dev_id)
+{
+  const struct rte_cryptodev_symmetric_capability *cap;
+  struct rte_cryptodev_sym_capability_idx cap_idx;
+
+#define _(a, b, c, d, e, f) \
+  cap_idx.type = RTE_CRYPTO_SYM_XFORM_##b; \
+  cap_idx.algo.aead = RTE_CRYPTO_##b##_##c; \
+  cap = rte_cryptodev_sym_capability_get (dev_id, &cap_idx); \
+  if (!cap) \
+    return -RTE_CRYPTO_##b##_##c; \
+  else \
+    { \
+      if (cap->aead.digest_size.min > e || cap->aead.digest_size.max < e) \
+	return -RTE_CRYPTO_##b##_##c; \
+      if (cap->aead.aad_size.min > f || cap->aead.aad_size.max < f) \
+	return -RTE_CRYPTO_##b##_##c; \
+      if (cap->aead.iv_size.min > d || cap->aead.iv_size.max < d) \
+	return -RTE_CRYPTO_##b##_##c; \
+    }
+
+  foreach_vnet_aead_crypto_conversion
+#undef _
+
+#define _(a, b, c, d) \
+  cap_idx.type = RTE_CRYPTO_SYM_XFORM_CIPHER; \
+  cap_idx.algo.cipher = RTE_CRYPTO_CIPHER_##b; \
+  cap = rte_cryptodev_sym_capability_get (dev_id, &cap_idx); \
+  if (!cap) \
+    return -RTE_CRYPTO_CIPHER_##b; \
+  cap_idx.type = RTE_CRYPTO_SYM_XFORM_AUTH; \
+  cap_idx.algo.auth = RTE_CRYPTO_AUTH_##c##_HMAC; \
+  cap = rte_cryptodev_sym_capability_get (dev_id, &cap_idx); \
+  if (!cap) \
+    return -RTE_CRYPTO_AUTH_##c;
+
+  foreach_cryptodev_link_async_alg
+#undef _
+    return 0;
+}
+
+static u32
+cryptodev_count_queue (u32 numa)
+{
+  struct rte_cryptodev_info info;
+  u32 n_cryptodev = rte_cryptodev_count ();
+  u32 i, q_count = 0;
+
+  for (i = 0; i < n_cryptodev; i++)
+    {
+      rte_cryptodev_info_get (i, &info);
+      if (rte_cryptodev_socket_id (i) != numa)
+	{
+	  clib_warning ("DPDK crypto resource %s is in different numa node "
+	      "as %u, ignored", info.device->name, numa);
+	  continue;
+	}
+      q_count += info.max_nb_queue_pairs;
+    }
+
+  return q_count;
+}
+
+static int
+cryptodev_configure (vlib_main_t *vm, uint32_t cryptodev_id)
+{
+  struct rte_cryptodev_info info;
+  struct rte_cryptodev *cdev;
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa_data = vec_elt_at_index (cmt->per_numa_data,
+						       vm->numa_node);
+  u32 i;
+  int ret;
+
+  cdev = rte_cryptodev_pmd_get_dev (cryptodev_id);
+  rte_cryptodev_info_get (cryptodev_id, &info);
+
+  ret = check_cryptodev_alg_support (cryptodev_id);
+  if (ret != 0)
+    return ret;
+
+  /** If the device is already started, we reuse it, otherwise configure
+   *  both the device and queue pair.
+   **/
+  if (!cdev->data->dev_started)
+    {
+      struct rte_cryptodev_config cfg;
+
+      cfg.socket_id = vm->numa_node;
+      cfg.nb_queue_pairs = info.max_nb_queue_pairs;
+
+      rte_cryptodev_configure (cryptodev_id, &cfg);
+
+      for (i = 0; i < info.max_nb_queue_pairs; i++)
+	{
+	  struct rte_cryptodev_qp_conf qp_cfg;
+
+	  int ret;
+
+	  qp_cfg.mp_session = numa_data->sess_pool;
+	  qp_cfg.mp_session_private = numa_data->sess_priv_pool;
+	  qp_cfg.nb_descriptors = CRYPTODEV_NB_CRYPTO_OPS;
+
+	  ret = rte_cryptodev_queue_pair_setup (cryptodev_id, i, &qp_cfg,
+						vm->numa_node);
+	  if (ret)
+	    break;
+	}
+      if (i != info.max_nb_queue_pairs)
+	return -1;
+      /* start the device */
+      rte_cryptodev_start (i);
+    }
+
+  for (i = 0; i < info.max_nb_queue_pairs; i++)
+    {
+      cryptodev_inst_t *cdev_inst;
+      vec_add2(cmt->cryptodev_inst, cdev_inst, 1);
+      cdev_inst->desc = vec_new (char, strlen (info.device->name) + 10);
+      cdev_inst->dev_id = cryptodev_id;
+      cdev_inst->q_id = i;
+
+      snprintf (cdev_inst->desc, strlen (info.device->name) + 9,
+		"%s_q%u", info.device->name, i);
+    }
+
+  return 0;
+}
+
+static int
+cryptodev_create_device (vlib_main_t *vm, u32 n_queues)
+{
+  char name[RTE_CRYPTODEV_NAME_MAX_LEN], args[128];
+  u32 dev_id = 0;
+  int ret;
+
+  /* find an unused name to create the device */
+  while (dev_id < RTE_CRYPTO_MAX_DEVS)
+    {
+      snprintf (name, RTE_CRYPTODEV_NAME_MAX_LEN - 1, "%s%u",
+		RTE_STR (CRYPTODEV_DEF_DRIVE), dev_id);
+      if (rte_cryptodev_get_dev_id (name) < 0)
+	break;
+      dev_id++;
+    }
+
+  if (dev_id == RTE_CRYPTO_MAX_DEVS)
+    return -1;
+
+  snprintf (args, 127, "socket_id=%u,max_nb_queue_pairs=%u",
+	    vm->numa_node, n_queues);
+
+  ret = rte_vdev_init(name, args);
+  if (ret < 0)
+    return ret;
+
+  clib_warning ("Created cryptodev device %s (%s)", name, args);
+
+  return 0;
+}
+
+static int
+cryptodev_probe (vlib_main_t *vm, u32 n_workers)
+{
+  u32 n_queues = cryptodev_count_queue (vm->numa_node);
+  u32 i;
+  int ret;
+
+  /* create an AESNI_MB PMD so the service is available */
+  if (n_queues < n_workers)
+    {
+      u32 q_num = max_pow2 (n_workers - n_queues);
+      ret = cryptodev_create_device (vm, q_num);
+      if (ret < 0)
+	return ret;
+    }
+
+  for (i = 0; i < rte_cryptodev_count (); i++)
+    {
+      ret = cryptodev_configure (vm, i);
+      if (ret)
+	return ret;
+    }
+
+  return 0;
+}
+
+static int
+cryptodev_get_session_sz (vlib_main_t *vm, uint32_t n_workers)
+{
+  u32 sess_data_sz = 0, i;
+  int ret;
+
+  if (rte_cryptodev_count () == 0)
+    {
+      clib_warning ("No cryptodev device available, creating...");
+      ret = cryptodev_create_device (vm, max_pow2 (n_workers));
+      if (ret < 0)
+	{
+	  clib_warning ("Failed");
+	  return ret;
+	}
+    }
+
+  for (i = 0; i < rte_cryptodev_count (); i++)
+    {
+      u32 dev_sess_sz = rte_cryptodev_sym_get_private_session_size (i);
+
+      sess_data_sz = dev_sess_sz > sess_data_sz ? dev_sess_sz : sess_data_sz;
+    }
+
+  return sess_data_sz;
+}
+
+static void
+dpdk_disable_cryptodev_engine (vlib_main_t * vm)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  cryptodev_numa_data_t *numa_data;
+
+  vec_validate (cmt->per_numa_data, vm->numa_node);
+  numa_data = vec_elt_at_index (cmt->per_numa_data, vm->numa_node);
+
+  if (numa_data->sess_pool)
+    rte_mempool_free (numa_data->sess_pool);
+  if (numa_data->sess_priv_pool)
+    rte_mempool_free (numa_data->sess_priv_pool);
+  if (numa_data->cop_pool)
+    rte_mempool_free (numa_data->cop_pool);
+}
+
+static void
+crypto_op_init (struct rte_mempool *mempool,
+		void *_arg __attribute__ ((unused)),
+		void *_obj, unsigned i __attribute__ ((unused)))
+{
+  struct rte_crypto_op *op = _obj;
+
+  op->sess_type = RTE_CRYPTO_OP_WITH_SESSION;
+  op->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
+  op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
+  op->phys_addr = rte_mempool_virt2iova (_obj);
+  op->mempool = mempool;
+}
+
+
+clib_error_t *
+dpdk_cryptodev_init (vlib_main_t * vm)
+{
+  cryptodev_main_t *cmt = &cryptodev_main;
+  vlib_thread_main_t *tm = vlib_get_thread_main ();
+  cryptodev_engine_thread_t *ptd;
+  cryptodev_numa_data_t *numa_data;
+  struct rte_mempool *mp;
+  u32 skip_master = vlib_num_workers () > 0;
+  u32 n_workers = tm->n_vlib_mains - skip_master;
+  u32 numa = vm->numa_node;
+  i32 sess_sz;
+  u32 n_cop_elts;
+  u32 eidx;
+  u32 i;
+  u8 *name = 0;
+  clib_error_t *error;
+  struct rte_crypto_op_pool_private *priv;
+
+  sess_sz = cryptodev_get_session_sz(vm, n_workers);
+  if (sess_sz < 0)
+    {
+      error = clib_error_return (0, "Not enough cryptodevs");
+      return error;
+    }
+
+  /* A total of 4 times n_worker threads * frame size as crypto ops */
+  n_cop_elts = max_pow2 (n_workers * CRYPTODEV_NB_CRYPTO_OPS);
+
+  vec_validate (cmt->per_numa_data, vm->numa_node);
+  numa_data = vec_elt_at_index (cmt->per_numa_data, numa);
+
+  /* create session pool for the numa node */
+  name = format (0, "vcryptodev_sess_pool_%u", numa);
+  mp = rte_cryptodev_sym_session_pool_create ((char *) name,
+					      CRYPTODEV_NB_SESSION,
+					      0, 0, 0, numa);
+  if (!mp)
+    {
+      error = clib_error_return (0, "Not enough memory for mp %s", name);
+      goto err_handling;
+    }
+  vec_free (name);
+
+  numa_data->sess_pool = mp;
+
+  /* create session private pool for the numa node */
+  name = format (0, "cryptodev_sess_pool_%u", numa);
+  mp = rte_mempool_create ((char *) name, CRYPTODEV_NB_SESSION, sess_sz, 0,
+			   0, NULL, NULL, NULL, NULL, numa, 0);
+  if (!mp)
+    {
+      error = clib_error_return (0, "Not enough memory for mp %s", name);
+      vec_free (name);
+      goto err_handling;
+    }
+
+  vec_free (name);
+
+  numa_data->sess_priv_pool = mp;
+
+  /* create cryptodev op pool */
+  name = format (0, "cryptodev_op_pool_%u", numa);
+
+  mp = rte_mempool_create ((char *) name, n_cop_elts,
+			   sizeof (cryptodev_op_t), VLIB_FRAME_SIZE * 2,
+			   sizeof (struct rte_crypto_op_pool_private), NULL,
+			   NULL, crypto_op_init, NULL, numa, 0);
+  if (!mp)
+    {
+      error = clib_error_return (0, "Not enough memory for mp %s", name);
+      vec_free (name);
+      goto err_handling;
+    }
+
+  priv = rte_mempool_get_priv (mp);
+  priv->priv_size = sizeof (struct rte_crypto_op_pool_private);
+  priv->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
+  vec_free (name);
+  numa_data->cop_pool = mp;
+
+  /* probe all cryptodev devices and get queue info */
+  if (cryptodev_probe (vm, n_workers) < 0)
+    {
+      error = clib_error_return (0, "Failed to configure cryptodev");
+      goto err_handling;
+    }
+
+  clib_bitmap_vec_validate (cmt->active_cdev_inst_mask, tm->n_vlib_mains);
+  clib_spinlock_init (&cmt->tlock);
+
+  vec_validate_aligned(cmt->per_thread_data, tm->n_vlib_mains - 1,
+		       CLIB_CACHE_LINE_BYTES);
+  for (i = skip_master; i < tm->n_vlib_mains; i++)
+    {
+      ptd = cmt->per_thread_data + i;
+      cryptodev_assign_resource (ptd, 0, CRYPTODEV_RESOURCE_ASSIGN_AUTO);
+      name = format (0, "frames_ring_%u", i);
+      ptd->ring = rte_ring_create((char *) name, CRYPTODEV_NB_CRYPTO_OPS,
+                                  vm->numa_node, RING_F_SP_ENQ|RING_F_SC_DEQ);
+      if (!ptd->ring)
+	{
+	  error = clib_error_return (0, "Not enough memory for mp %s", name);
+	  vec_free (name);
+	  goto err_handling;
+	}
+      vec_validate (ptd->cops, VNET_CRYPTO_FRAME_SIZE - 1);
+      vec_free(name);
+    }
+
+  /* register handler */
+  eidx = vnet_crypto_register_engine (vm, "dpdk_cryptodev", 79,
+                                      "DPDK Cryptodev Engine");
+
+#define _(a, b, c, d, e, f) \
+  vnet_crypto_register_async_handler \
+    (vm, eidx, VNET_CRYPTO_OP_##a##_TAG##e##_AAD##f##_ENC, \
+	cryptodev_enqueue_##a##_AAD##f##_enc, \
+	cryptodev_frame_dequeue); \
+  vnet_crypto_register_async_handler \
+    (vm, eidx, VNET_CRYPTO_OP_##a##_TAG##e##_AAD##f##_DEC, \
+	cryptodev_enqueue_##a##_AAD##f##_dec, \
+	cryptodev_frame_dequeue);
+
+  foreach_vnet_aead_crypto_conversion
+#undef _
+
+#define _(a, b, c, d) \
+  vnet_crypto_register_async_handler \
+    (vm, eidx, VNET_CRYPTO_OP_##a##_##c##_TAG##d##_ENC, \
+	cryptodev_enqueue_##a##_##c##_TAG##d##_enc, \
+	cryptodev_frame_dequeue); \
+  vnet_crypto_register_async_handler \
+    (vm, eidx, VNET_CRYPTO_OP_##a##_##c##_TAG##d##_DEC, \
+	cryptodev_enqueue_##a##_##c##_TAG##d##_dec, \
+	cryptodev_frame_dequeue);
+
+    foreach_cryptodev_link_async_alg
+#undef _
+
+  vnet_crypto_register_key_handler (vm, eidx, cryptodev_key_handler);
+
+  return 0;
+
+err_handling:
+  dpdk_disable_cryptodev_engine (vm);
+
+  return error;
+}
+/* *INDENT-On* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/dpdk/cryptodev/cryptodev.h b/src/plugins/dpdk/cryptodev/cryptodev.h
new file mode 100644
index 00000000000..1f96aed1848
--- /dev/null
+++ b/src/plugins/dpdk/cryptodev/cryptodev.h
@@ -0,0 +1,25 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2019 Intel and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+#ifndef included_cryptodev_h
+#define included_cryptodev_h
+
+#include <vnet/crypto/crypto.h>
+
+clib_error_t *
+dpdk_cryptodev_init (vlib_main_t * vm);
+
+#endif
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index a9e73935a7d..ae50b7aa253 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -24,6 +24,7 @@
 #include <vnet/ethernet/ethernet.h>
 #include <dpdk/buffer.h>
 #include <dpdk/device/dpdk.h>
+#include <dpdk/cryptodev/cryptodev.h>
 #include <vlib/pci/pci.h>
 #include <vlib/vmbus/vmbus.h>
 
@@ -1608,6 +1609,10 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
   if (error)
     clib_error_report (error);
 
+  error = dpdk_cryptodev_init (vm);
+  if (error)
+    clib_error_report (error);
+
   tm->worker_thread_release = 1;
 
   f64 now = vlib_time_now (vm);
diff --git a/src/plugins/dpdk/ipsec/ipsec.c b/src/plugins/dpdk/ipsec/ipsec.c
index 8837756554f..ad638db65d4 100644
--- a/src/plugins/dpdk/ipsec/ipsec.c
+++ b/src/plugins/dpdk/ipsec/ipsec.c
@@ -991,6 +991,24 @@ crypto_disable (void)
   vec_free (dcm->auth_algs);
 }
 
+static clib_error_t *
+dpdk_ipsec_enable_disable (int is_enable)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  vlib_thread_main_t *tm = vlib_get_thread_main ();
+  vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "dpdk-crypto-input");
+  u32 skip_master = vlib_num_workers () > 0;
+  u32 n_mains = tm->n_vlib_mains;
+  u32 i;
+
+  ASSERT (node);
+  for (i = skip_master; i < n_mains; i++)
+    vlib_node_set_state (vlib_mains[i], node->index, is_enable != 0 ?
+			 VLIB_NODE_STATE_POLLING : VLIB_NODE_STATE_DISABLED);
+
+  return 0;
+}
+
 static uword
 dpdk_ipsec_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
 		    vlib_frame_t * f)
@@ -1000,7 +1018,7 @@ dpdk_ipsec_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
   vlib_thread_main_t *tm = vlib_get_thread_main ();
   crypto_worker_main_t *cwm;
   clib_error_t *error = NULL;
-  u32 i, skip_master, n_mains;
+  u32 skip_master, n_mains;
 
   n_mains = tm->n_vlib_mains;
   skip_master = vlib_num_workers () > 0;
@@ -1055,14 +1073,14 @@ dpdk_ipsec_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
 					"dpdk-esp6-decrypt",
 					"dpdk-esp6-decrypt",
 					dpdk_ipsec_check_support,
-					add_del_sa_session);
-  int rv = ipsec_select_esp_backend (im, idx);
-  ASSERT (rv == 0);
-
-  vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "dpdk-crypto-input");
-  ASSERT (node);
-  for (i = skip_master; i < n_mains; i++)
-    vlib_node_set_state (vlib_mains[i], node->index, VLIB_NODE_STATE_POLLING);
+					add_del_sa_session,
+					dpdk_ipsec_enable_disable);
+  int rv;
+  if (im->esp_current_backend == ~0)
+    {
+      rv = ipsec_select_esp_backend (im, idx);
+      ASSERT (rv == 0);
+    }
   return 0;
 }