cryptodev_raw_data_path.c

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/*
 *------------------------------------------------------------------
 * 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/ipsec/ipsec.h>
#include <vpp/app/version.h>

#include <dpdk/buffer.h>
#include <dpdk/device/dpdk.h>
#include <dpdk/device/dpdk_priv.h>
#undef always_inline
#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>

#include "cryptodev.h"

#if CLIB_DEBUG > 0
#define always_inline static inline
#else
#define always_inline static inline __attribute__ ((__always_inline__))
#endif

static_always_inline u64
compute_ofs_linked_alg (vnet_crypto_async_frame_elt_t *fe, i16 *min_ofs,
                        u32 *max_end)
{
  union rte_crypto_sym_ofs ofs;
  u32 crypto_end = fe->crypto_start_offset + fe->crypto_total_length;
  u32 integ_end =
    fe->integ_start_offset + fe->crypto_total_length + fe->integ_length_adj;

  *min_ofs = clib_min (fe->crypto_start_offset, fe->integ_start_offset);
  *max_end = clib_max (crypto_end, integ_end);

  ofs.ofs.cipher.head = fe->crypto_start_offset - *min_ofs;
  ofs.ofs.cipher.tail = *max_end - crypto_end;
  ofs.ofs.auth.head = fe->integ_start_offset - *min_ofs;
  ofs.ofs.auth.tail = *max_end - integ_end;

  return ofs.raw;
}

static_always_inline int
cryptodev_frame_build_sgl (vlib_main_t *vm, enum rte_iova_mode iova_mode,
                           struct rte_crypto_vec *data_vec, u16 *n_seg,
                           vlib_buffer_t *b, u32 size)
{
  struct rte_crypto_vec *vec = data_vec + 1;
  if (vlib_buffer_chain_linearize (vm, b) > CRYPTODEV_MAX_N_SGL)
    return -1;

  while ((b->flags & VLIB_BUFFER_NEXT_PRESENT) && size)
    {
      u32 len;
      b = vlib_get_buffer (vm, b->next_buffer);
      len = clib_min (b->current_length, size);
      vec->base = (void *) vlib_buffer_get_current (b);
      if (iova_mode == RTE_IOVA_VA)
        vec->iova = pointer_to_uword (vec->base);
      else
        vec->iova = vlib_buffer_get_current_pa (vm, b);
      vec->len = len;
      size -= len;
      vec++;
      *n_seg += 1;
    }

  if (size)
    return -1;

  return 0;
}

static_always_inline void
cryptodev_reset_ctx (cryptodev_engine_thread_t *cet)
{
  union rte_cryptodev_session_ctx sess_ctx;

  ASSERT (cet->reset_sess != 0);

  sess_ctx.crypto_sess = cet->reset_sess;

  rte_cryptodev_configure_raw_dp_ctx (cet->cryptodev_id, cet->cryptodev_q,
                                      cet->ctx, RTE_CRYPTO_OP_WITH_SESSION,
                                      sess_ctx, 0);
}

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)
{
  cryptodev_main_t *cmt = &cryptodev_main;
  cryptodev_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
  vnet_crypto_async_frame_elt_t *fe;
  vlib_buffer_t **b;
  struct rte_crypto_vec vec[CRYPTODEV_MAX_N_SGL];
  struct rte_crypto_va_iova_ptr iv_vec, digest_vec;
  u32 n_elts;
  u32 last_key_index = ~0;
  i16 min_ofs;
  u32 max_end;
  u8 is_update = 0;
  int status;

  n_elts = frame->n_elts;

  if (PREDICT_FALSE (CRYPTODEV_MAX_INFLIGHT - cet->inflight < n_elts))
    {
      cryptodev_mark_frame_err_status (frame,
                                       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
      return -1;
    }

  vlib_get_buffers (vm, frame->buffer_indices, cet->b, frame->n_elts);

  b = cet->b;
  fe = frame->elts;

  while (n_elts)
    {
      union rte_crypto_sym_ofs cofs;
      u16 n_seg = 1;

      if (n_elts > 2)
        {
          CLIB_PREFETCH (&fe[1], CLIB_CACHE_LINE_BYTES, LOAD);
          CLIB_PREFETCH (&fe[2], CLIB_CACHE_LINE_BYTES, LOAD);
          vlib_prefetch_buffer_header (b[1], LOAD);
          vlib_prefetch_buffer_header (b[2], LOAD);
        }

      if (PREDICT_FALSE (last_key_index != fe->key_index))
        {
          cryptodev_key_t *key = vec_elt_at_index (cmt->keys, fe->key_index);
          union rte_cryptodev_session_ctx sess_ctx;

          if (PREDICT_FALSE (key->keys[vm->numa_node][op_type] == 0))
            {
              status = cryptodev_session_create (vm, fe->key_index, 0);
              if (PREDICT_FALSE (status < 0))
                goto error_exit;
            }

          /* Borrow a created session to reset session ctx, based on a valid
           * assumption that the session reset won't happen until first valid
           * packet is processed */
          if (PREDICT_FALSE (cet->reset_sess == 0))
            cet->reset_sess = key->keys[vm->numa_node][op_type];

          sess_ctx.crypto_sess = key->keys[vm->numa_node][op_type];

          status = rte_cryptodev_configure_raw_dp_ctx (
            cet->cryptodev_id, cet->cryptodev_q, cet->ctx,
            RTE_CRYPTO_OP_WITH_SESSION, sess_ctx, is_update);
          if (PREDICT_FALSE (status < 0))
            goto error_exit;

          last_key_index = fe->key_index;
          is_update = 1;
        }

      cofs.raw = compute_ofs_linked_alg (fe, &min_ofs, &max_end);

      vec->len = max_end - min_ofs;
      if (cmt->iova_mode == RTE_IOVA_VA)
        {
          vec[0].base = (void *) (b[0]->data + min_ofs);
          vec[0].iova = pointer_to_uword (b[0]->data) + min_ofs;
          iv_vec.va = (void *) fe->iv;
          iv_vec.iova = pointer_to_uword (fe->iv);
          digest_vec.va = (void *) fe->tag;
          digest_vec.iova = pointer_to_uword (fe->tag);
        }
      else
        {
          vec[0].base = (void *) (b[0]->data + min_ofs);
          vec[0].iova = vlib_buffer_get_pa (vm, b[0]) + min_ofs;
          iv_vec.va = (void *) fe->iv;
          iv_vec.iova = vlib_physmem_get_pa (vm, fe->iv);
          digest_vec.va = (void *) fe->tag;
          digest_vec.iova = vlib_physmem_get_pa (vm, fe->digest);
        }

      if (PREDICT_FALSE (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS))
        {
          vec[0].len = b[0]->current_data + b[0]->current_length - min_ofs;
          if (cryptodev_frame_build_sgl (vm, cmt->iova_mode, vec, &n_seg, b[0],
                                         max_end - min_ofs - vec->len) < 0)
            goto error_exit;
        }

      status = rte_cryptodev_raw_enqueue (cet->ctx, vec, n_seg, cofs, &iv_vec,
                                          &digest_vec, 0, (void *) frame);
      if (PREDICT_FALSE (status < 0))
        goto error_exit;

      b++;
      fe++;
      n_elts--;
    }

  status = rte_cryptodev_raw_enqueue_done (cet->ctx, frame->n_elts);
  if (PREDICT_FALSE (status < 0))
    {
      cryptodev_reset_ctx (cet);
      return -1;
    }

  cet->inflight += frame->n_elts;
  return 0;

error_exit:
  cryptodev_mark_frame_err_status (frame,
                                   VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
  cryptodev_reset_ctx (cet);
  return -1;
}

static_always_inline int
cryptodev_raw_aead_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_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
  vnet_crypto_async_frame_elt_t *fe;
  vlib_buffer_t **b;
  u32 n_elts;
  union rte_crypto_sym_ofs cofs;
  struct rte_crypto_vec vec[CRYPTODEV_MAX_N_SGL];
  struct rte_crypto_va_iova_ptr iv_vec, digest_vec, aad_vec;
  u32 last_key_index = ~0;
  u8 is_update = 0;
  int status;

  n_elts = frame->n_elts;

  if (PREDICT_FALSE (CRYPTODEV_MAX_INFLIGHT - cet->inflight < n_elts))
    {
      cryptodev_mark_frame_err_status (frame,
                                       VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
      return -1;
    }

  vlib_get_buffers (vm, frame->buffer_indices, cet->b, frame->n_elts);

  fe = frame->elts;
  b = cet->b;
  cofs.raw = 0;

  while (n_elts)
    {
      u32 aad_offset = ((cet->aad_index++) & CRYPTODEV_AAD_MASK) << 4;
      u16 n_seg = 1;

      if (n_elts > 1)
        {
          CLIB_PREFETCH (&fe[1], CLIB_CACHE_LINE_BYTES, LOAD);
          vlib_prefetch_buffer_header (b[1], LOAD);
        }

      if (PREDICT_FALSE (last_key_index != fe->key_index))
        {
          cryptodev_key_t *key = vec_elt_at_index (cmt->keys, fe->key_index);
          union rte_cryptodev_session_ctx sess_ctx;

          if (PREDICT_FALSE (key->keys[vm->numa_node][op_type] == 0))
            {
              status = cryptodev_session_create (vm, fe->key_index, aad_len);
              if (PREDICT_FALSE (status < 0))
                goto error_exit;
            }

          if (PREDICT_FALSE (
                (u8) key->keys[vm->numa_node][op_type]->opaque_data !=
                aad_len))
            {
              cryptodev_sess_handler (vm, VNET_CRYPTO_KEY_OP_DEL,
                                      fe->key_index, aad_len);
              status = cryptodev_session_create (vm, fe->key_index, aad_len);
              if (PREDICT_FALSE (status < 0))
                goto error_exit;
            }

          /* Borrow a created session to reset session ctx, based on a valid
           * assumption that the session reset won't happen until first valid
           * packet is processed */

          if (PREDICT_FALSE (cet->reset_sess == 0))
            cet->reset_sess = key->keys[vm->numa_node][op_type];

          sess_ctx.crypto_sess = key->keys[vm->numa_node][op_type];

          status = rte_cryptodev_configure_raw_dp_ctx (
            cet->cryptodev_id, cet->cryptodev_q, cet->ctx,
            RTE_CRYPTO_OP_WITH_SESSION, sess_ctx, is_update);
          if (PREDICT_FALSE (status < 0))
            goto error_exit;

          last_key_index = fe->key_index;
          is_update = 1;
        }

      if (cmt->iova_mode == RTE_IOVA_VA)
        {
          vec[0].base = (void *) (b[0]->data + fe->crypto_start_offset);
          vec[0].iova = pointer_to_uword (vec[0].base);
          vec[0].len = fe->crypto_total_length;
          iv_vec.va = (void *) fe->iv;
          iv_vec.iova = pointer_to_uword (fe->iv);
          digest_vec.va = (void *) fe->tag;
          digest_vec.iova = pointer_to_uword (fe->tag);
          aad_vec.va = (void *) (cet->aad_buf + aad_offset);
          aad_vec.iova = cet->aad_phy_addr + aad_offset;
        }
      else
        {
          vec[0].base = (void *) (b[0]->data + fe->crypto_start_offset);
          vec[0].iova =
            vlib_buffer_get_pa (vm, b[0]) + fe->crypto_start_offset;
          vec[0].len = fe->crypto_total_length;
          iv_vec.va = (void *) fe->iv;
          iv_vec.iova = vlib_physmem_get_pa (vm, fe->iv);
          aad_vec.va = (void *) (cet->aad_buf + aad_offset);
          aad_vec.iova = cet->aad_phy_addr + aad_offset;
          digest_vec.va = (void *) fe->tag;
          digest_vec.iova = vlib_physmem_get_pa (vm, fe->tag);
        }

      if (aad_len == 8)
        *(u64 *) (cet->aad_buf + aad_offset) = *(u64 *) fe->aad;
      else
        {
          /* aad_len == 12 */
          *(u64 *) (cet->aad_buf + aad_offset) = *(u64 *) fe->aad;
          *(u32 *) (cet->aad_buf + aad_offset + 8) = *(u32 *) (fe->aad + 8);
        }

      if (PREDICT_FALSE (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS))
        {
          vec[0].len = b[0]->current_data + b[0]->current_length -
                       fe->crypto_start_offset;
          status =
            cryptodev_frame_build_sgl (vm, cmt->iova_mode, vec, &n_seg, b[0],
                                       fe->crypto_total_length - vec[0].len);
          if (status < 0)
            goto error_exit;
        }

      status =
        rte_cryptodev_raw_enqueue (cet->ctx, vec, n_seg, cofs, &iv_vec,
                                   &digest_vec, &aad_vec, (void *) frame);
      if (PREDICT_FALSE (status < 0))
        goto error_exit;

      fe++;
      b++;
      n_elts--;
    }

  status = rte_cryptodev_raw_enqueue_done (cet->ctx, frame->n_elts);
  if (PREDICT_FALSE (status < 0))
    goto error_exit;

  cet->inflight += frame->n_elts;

  return 0;

error_exit:
  cryptodev_mark_frame_err_status (frame,
                                   VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR);
  cryptodev_reset_ctx (cet);
  return -1;
}

static_always_inline u32
cryptodev_get_frame_n_elts (void *frame)
{
  vnet_crypto_async_frame_t *f = (vnet_crypto_async_frame_t *) frame;
  return f->n_elts;
}

static_always_inline void
cryptodev_post_dequeue (void *frame, u32 index, u8 is_op_success)
{
  vnet_crypto_async_frame_t *f = (vnet_crypto_async_frame_t *) frame;

  f->elts[index].status = is_op_success ? VNET_CRYPTO_OP_STATUS_COMPLETED :
                                          VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
}

#define GET_RING_OBJ(r, pos, f)                                               \
  do                                                                          \
    {                                                                         \
      vnet_crypto_async_frame_t **ring = (void *) &r[1];                      \
      f = ring[(r->cons.head + pos) & r->mask];                               \
    }                                                                         \
  while (0)

static_always_inline vnet_crypto_async_frame_t *
cryptodev_raw_dequeue (vlib_main_t *vm, u32 *nb_elts_processed,
                       u32 *enqueue_thread_idx)
{
  cryptodev_main_t *cmt = &cryptodev_main;
  cryptodev_engine_thread_t *cet = cmt->per_thread_data + vm->thread_index;
  vnet_crypto_async_frame_t *frame, *frame_ret = 0;
  u32 n_deq, n_success;
  u32 n_cached_frame = rte_ring_count (cet->cached_frame), n_room_left;
  u8 no_job_to_deq = 0;
  u16 inflight = cet->inflight;
  int dequeue_status;

  n_room_left = CRYPTODEV_DEQ_CACHE_SZ - n_cached_frame - 1;

  if (n_cached_frame)
    {
      u32 i;
      for (i = 0; i < n_cached_frame; i++)
        {
          vnet_crypto_async_frame_t *f;
          void *f_ret;
          enum rte_crypto_op_status op_status;
          u8 n_left, err, j;

          GET_RING_OBJ (cet->cached_frame, i, f);

          if (i < n_cached_frame - 2)
            {
              vnet_crypto_async_frame_t *f1, *f2;
              GET_RING_OBJ (cet->cached_frame, i + 1, f1);
              GET_RING_OBJ (cet->cached_frame, i + 2, f2);
              CLIB_PREFETCH (f1, CLIB_CACHE_LINE_BYTES, LOAD);
              CLIB_PREFETCH (f2, CLIB_CACHE_LINE_BYTES, LOAD);
            }

          n_left = f->state & 0x7f;
          err = f->state & 0x80;

          for (j = f->n_elts - n_left; j < f->n_elts && inflight; j++)
            {
              int ret;
              f_ret = rte_cryptodev_raw_dequeue (cet->ctx, &ret, &op_status);

              if (!f_ret)
                break;

              switch (op_status)
                {
                case RTE_CRYPTO_OP_STATUS_SUCCESS:
                  f->elts[j].status = VNET_CRYPTO_OP_STATUS_COMPLETED;
                  break;
                default:
                  f->elts[j].status = VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR;
                  err |= 1 << 7;
                }

              inflight--;
            }

          if (j == f->n_elts)
            {
              if (i == 0)
                {
                  frame_ret = f;
                  f->state = err ? VNET_CRYPTO_FRAME_STATE_ELT_ERROR :
                                   VNET_CRYPTO_FRAME_STATE_SUCCESS;
                }
              else
                {
                  f->state = f->n_elts - j;
                  f->state |= err;
                }
              if (inflight)
                continue;
            }

          /* to here f is not completed dequeued and no more job can be
           * dequeued
           */
          f->state = f->n_elts - j;
          f->state |= err;
          no_job_to_deq = 1;
          break;
        }

      if (frame_ret)
        {
          rte_ring_sc_dequeue (cet->cached_frame, (void **) &frame_ret);
          n_room_left++;
        }
    }

  /* no point to dequeue further */
  if (!inflight || no_job_to_deq || !n_room_left)
    goto end_deq;

  n_deq = rte_cryptodev_raw_dequeue_burst (
    cet->ctx, cryptodev_get_frame_n_elts, cryptodev_post_dequeue,
    (void **) &frame, 0, &n_success, &dequeue_status);
  if (!n_deq)
    goto end_deq;

  inflight -= n_deq;
  no_job_to_deq = n_deq < frame->n_elts;
  /* we have to cache the frame */
  if (frame_ret || n_cached_frame || no_job_to_deq)
    {
      frame->state = frame->n_elts - n_deq;
      frame->state |= ((n_success < n_deq) << 7);
      rte_ring_sp_enqueue (cet->cached_frame, (void *) frame);
      n_room_left--;
    }
  else
    {
      frame->state = n_success == frame->n_elts ?
                       VNET_CRYPTO_FRAME_STATE_SUCCESS :
                       VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
      frame_ret = frame;
    }

  /* see if we can dequeue more */
  while (inflight && n_room_left && !no_job_to_deq)
    {
      n_deq = rte_cryptodev_raw_dequeue_burst (
        cet->ctx, cryptodev_get_frame_n_elts, cryptodev_post_dequeue,
        (void **) &frame, 0, &n_success, &dequeue_status);
      if (!n_deq)
        break;
      inflight -= n_deq;
      no_job_to_deq = n_deq < frame->n_elts;
      frame->state = frame->n_elts - n_deq;
      frame->state |= ((n_success < n_deq) << 7);
      rte_ring_sp_enqueue (cet->cached_frame, (void *) frame);
      n_room_left--;
    }

end_deq:
  if (inflight < cet->inflight)
    {
      int res =
        rte_cryptodev_raw_dequeue_done (cet->ctx, cet->inflight - inflight);
      ASSERT (res == 0);
      cet->inflight = inflight;
    }

  if (frame_ret)
    {
      *nb_elts_processed = frame_ret->n_elts;
      *enqueue_thread_idx = frame_ret->enqueue_thread_index;
    }

  return frame_ret;
}

static_always_inline int
cryptodev_raw_enq_aead_aad_8_enc (vlib_main_t *vm,
                                  vnet_crypto_async_frame_t *frame)
{
  return cryptodev_raw_aead_enqueue (vm, frame, CRYPTODEV_OP_TYPE_ENCRYPT, 8);
}
static_always_inline int
cryptodev_raw_enq_aead_aad_12_enc (vlib_main_t *vm,
                                   vnet_crypto_async_frame_t *frame)
{
  return cryptodev_raw_aead_enqueue (vm, frame, CRYPTODEV_OP_TYPE_ENCRYPT, 12);
}

static_always_inline int
cryptodev_raw_enq_aead_aad_8_dec (vlib_main_t *vm,
                                  vnet_crypto_async_frame_t *frame)
{
  return cryptodev_raw_aead_enqueue (vm, frame, CRYPTODEV_OP_TYPE_DECRYPT, 8);
}
static_always_inline int
cryptodev_raw_enq_aead_aad_12_dec (vlib_main_t *vm,
                                   vnet_crypto_async_frame_t *frame)
{
  return cryptodev_raw_aead_enqueue (vm, frame, CRYPTODEV_OP_TYPE_DECRYPT, 12);
}

static_always_inline int
cryptodev_raw_enq_linked_alg_enc (vlib_main_t *vm,
                                  vnet_crypto_async_frame_t *frame)
{
  return cryptodev_frame_linked_algs_enqueue (vm, frame,
                                              CRYPTODEV_OP_TYPE_ENCRYPT);
}

static_always_inline int
cryptodev_raw_enq_linked_alg_dec (vlib_main_t *vm,
                                  vnet_crypto_async_frame_t *frame)
{
  return cryptodev_frame_linked_algs_enqueue (vm, frame,
                                              CRYPTODEV_OP_TYPE_DECRYPT);
}

clib_error_t *
cryptodev_register_raw_hdl (vlib_main_t *vm, u32 eidx)
{
  cryptodev_main_t *cmt = &cryptodev_main;
  cryptodev_engine_thread_t *cet;
  cryptodev_inst_t *cinst;
  struct rte_cryptodev_info info;
  struct rte_cryptodev_sym_capability_idx cap_auth_idx;
  struct rte_cryptodev_sym_capability_idx cap_cipher_idx;
  struct rte_cryptodev_sym_capability_idx cap_aead_idx;
  u32 support_raw_api = 1, max_ctx_size = 0;
  clib_error_t *error = 0;

  vec_foreach (cinst, cmt->cryptodev_inst)
    {
      u32 ctx_size;
      rte_cryptodev_info_get (cinst->dev_id, &info);
      if (!(info.feature_flags & RTE_CRYPTODEV_FF_SYM_RAW_DP))
        {
          support_raw_api = 0;
          break;
        }

      ctx_size = rte_cryptodev_get_raw_dp_ctx_size (cinst->dev_id);
      max_ctx_size = clib_max (ctx_size, max_ctx_size);
    }

  if (!support_raw_api)
    return cryptodev_register_cop_hdl (vm, eidx);

  vec_foreach (cet, cmt->per_thread_data)
    {
      u32 thread_id = cet - cmt->per_thread_data;
      u32 numa = vlib_get_main_by_index (thread_id)->numa_node;
      u8 *name = format (0, "cache_frame_ring_%u_%u", numa, thread_id);

      cet->cached_frame =
        rte_ring_create ((char *) name, CRYPTODEV_DEQ_CACHE_SZ, numa,
                         RING_F_SC_DEQ | RING_F_SP_ENQ);

      cet->aad_buf = rte_zmalloc_socket (
        0, CRYPTODEV_NB_CRYPTO_OPS * CRYPTODEV_MAX_AAD_SIZE,
        CLIB_CACHE_LINE_BYTES, numa);
      if (cet->aad_buf == 0)
        {
          error = clib_error_return (0, "Failed to alloc aad buf");
          goto err_handling;
        }
      cet->aad_phy_addr = rte_malloc_virt2iova (cet->aad_buf);

      cet->ctx =
        rte_zmalloc_socket (0, max_ctx_size, CLIB_CACHE_LINE_BYTES, numa);
      if (!cet->ctx)
        {
          error = clib_error_return (0, "Failed to alloc raw dp ctx");
          goto err_handling;
        }

      if (cet->cached_frame == 0)
        {
          error = clib_error_return (0, "Failed to alloc frame ring %s", name);
          goto err_handling;
        }

      vec_free (name);
    }

/** INDENT-OFF **/
#define _(a, b, c, d, e, f, g)                                                \
  cap_aead_idx.type = RTE_CRYPTO_SYM_XFORM_AEAD;                              \
  cap_aead_idx.algo.aead = RTE_CRYPTO_##b##_##c;                              \
  if (cryptodev_check_cap_support (&cap_aead_idx, g, e, f))                   \
    {                                                                         \
      vnet_crypto_register_async_handler (                                    \
        vm, eidx, VNET_CRYPTO_OP_##a##_TAG##e##_AAD##f##_ENC,                 \
        cryptodev_raw_enq_aead_aad_##f##_enc, cryptodev_raw_dequeue);         \
      vnet_crypto_register_async_handler (                                    \
        vm, eidx, VNET_CRYPTO_OP_##a##_TAG##e##_AAD##f##_DEC,                 \
        cryptodev_raw_enq_aead_aad_##f##_dec, cryptodev_raw_dequeue);         \
    }
  foreach_vnet_aead_crypto_conversion
#undef _

#define _(a, b, c, d, e)                                                      \
  cap_auth_idx.type = RTE_CRYPTO_SYM_XFORM_AUTH;                              \
  cap_auth_idx.algo.auth = RTE_CRYPTO_AUTH_##d##_HMAC;                        \
  cap_cipher_idx.type = RTE_CRYPTO_SYM_XFORM_CIPHER;                          \
  cap_cipher_idx.algo.cipher = RTE_CRYPTO_CIPHER_##b;                         \
  if (cryptodev_check_cap_support (&cap_cipher_idx, c, -1, -1) &&             \
      cryptodev_check_cap_support (&cap_auth_idx, -1, e, -1))                 \
    {                                                                         \
      vnet_crypto_register_async_handler (                                    \
        vm, eidx, VNET_CRYPTO_OP_##a##_##d##_TAG##e##_ENC,                    \
        cryptodev_raw_enq_linked_alg_enc, cryptodev_raw_dequeue);             \
      vnet_crypto_register_async_handler (                                    \
        vm, eidx, VNET_CRYPTO_OP_##a##_##d##_TAG##e##_DEC,                    \
        cryptodev_raw_enq_linked_alg_dec, cryptodev_raw_dequeue);             \
    }
    foreach_cryptodev_link_async_alg
#undef _

      cmt->is_raw_api = 1;

  return 0;

err_handling:
  vec_foreach (cet, cmt->per_thread_data)
    {
      if (cet->cached_frame)
        rte_ring_free (cet->cached_frame);
    }

  return error;
}