/*
*------------------------------------------------------------------
* 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>
#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>
#if CLIB_DEBUG > 0
#define always_inline static inline
#else
#define always_inline static inline __attribute__ ((__always_inline__))
#endif
#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))
/* 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;
enum rte_iova_mode iova_mode;
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;
}
static_always_inline rte_iova_t
cryptodev_get_iova (clib_pmalloc_main_t * pm, enum rte_iova_mode mode,
void *data)
{
u64 index;
if (mode == RTE_IOVA_VA)
return (rte_iova_t) pointer_to_uword (data);
index = clib_pmalloc_get_page_index (pm, data);
return pointer_to_uword (data) - pm->lookup_table[index];
}
static_always_inline void
cryptodev_validate_mbuf_chain (vlib_main_t * vm, struct rte_mbuf *mb,
vlib_buffer_t * b)
{
struct rte_mbuf *first_mb = mb, *last_mb = mb; /**< last mbuf */
/* when input node is not dpdk, mbuf data len is not initialized, for
* single buffer it is not a problem since the data length is written
* into cryptodev operation. For chained buffer a reference data length
* has to be computed through vlib_buffer.
*
* even when input node is dpdk, it is possible chained vlib_buffers
* are updated (either added or removed a buffer) but not not mbuf fields.
* we have to re-link every mbuf in the chain.
*/
u16 data_len = b->current_length + (b->data + b->current_data -
rte_pktmbuf_mtod (mb, u8 *));
first_mb->nb_segs = 1;
first_mb->pkt_len = first_mb->data_len = data_len;
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];
}
}
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;
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_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;
u32 last_key_index;
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;
key = pool_elt_at_index (cmt->keys, fe->key_index);
last_key_index = fe->key_index;
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_src->data_off = VLIB_BUFFER_PRE_DATA_SIZE;
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))
{
sop->m_src->data_off += 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;
sop->auth.digest.phys_addr = cryptodev_get_iova (pm, cmt->iova_mode,
fe->digest);
if (PREDICT_FALSE (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS))
cryptodev_validate_mbuf_chain (vm, sop->m_src, b);
else
/* for input nodes that are not dpdk-input, it is possible the mbuf
* was updated before as one of the chained mbufs. Setting nb_segs
* to 1 here to prevent the cryptodev PMD to access potentially
* invalid m_src->next pointers.
*/
sop->m_src->nb_segs = 1;
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;
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_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;
u32 last_key_index;
u8 sess_aad_len;
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;
key = pool_elt_at_index (cmt->keys, fe->key_index);
last_key_index = 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);
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)
{
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;
sop->aead.digest.phys_addr = cryptodev_get_iova (pm, cmt->iova_mode,
fe->tag);
if (PREDICT_FALSE (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS))
cryptodev_validate_mbuf_chain (vm, sop->m_src, b);
else
/* for input nodes that are not dpdk-input, it is possible the mbuf
* was updated before as one of the chained mbufs. Setting nb_segs
* to 1 here to prevent the cryptodev PMD to access potentially
* invalid m_src->next pointers.
*/
sop->m_src->nb_segs = 1;
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, u32 * nb_elts_processed,
u32 * enqueue_thread_idx)
{
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);
*nb_elts_processed = frame->n_elts;
*enqueue_thread_idx = frame->enqueue_thread_index;
return frame;
}
/* *INDENT-OFF* */
static_always_inline int
cryptodev_enqueue_gcm_aad_8_enc (vlib_main_t * vm,
vnet_crypto_async_frame_t * frame)
{
return cryptodev_frame_gcm_enqueue (vm, frame,
CRYPTODEV_OP_TYPE_ENCRYPT, 8);
}
static_always_inline int
cryptodev_enqueue_gcm_aad_12_enc (vlib_main_t * vm,
vnet_crypto_async_frame_t * frame)
{
return cryptodev_frame_gcm_enqueue (vm, frame,
CRYPTODEV_OP_TYPE_ENCRYPT, 12);
}
static_always_inline int
cryptodev_enqueue_gcm_aad_8_dec (vlib_main_t * vm,
vnet_crypto_async_frame_t * frame)
{
return cryptodev_frame_gcm_enqueue (vm, frame,
CRYPTODEV_OP_TYPE_DECRYPT, 8);
}
static_always_inline int
cryptodev_enqueue_gcm_aad_12_dec (vlib_main_t * vm,
vnet_crypto_async_frame_t * frame)
{
return cryptodev_frame_gcm_enqueue (vm, frame,
CRYPTODEV_OP_TYPE_DECRYPT, 12);
}
static_always_inline int
cryptodev_enqueue_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_enqueue_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);
}
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_cmp (void *v1, void *v2)
{
cryptodev_inst_t *a1 = v1;
cryptodev_inst_t *a2 = v2;
if (a1->q_id > a2->q_id)
return 1;
if (a1->q_id < a2->q_id)
return -1;
return 0;
}
static int
cryptodev_probe (vlib_main_t *vm, u32 n_workers)
{
cryptodev_main_t *cmt = &cryptodev_main;
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;
}
vec_sort_with_function(cmt->cryptodev_inst, cryptodev_cmp);
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;
u64 n_cop_elts;
u32 eidx;
u32 i;
u8 *name = 0;
clib_error_t *error;
struct rte_crypto_op_pool_private *priv;
cmt->iova_mode = rte_eal_iova_mode ();
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 ((u64)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%c", numa, 0);
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%c", numa, 0);
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%c", numa, 0);
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%c", i, 0);
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_gcm_aad_##f##_enc,\
cryptodev_frame_dequeue); \
vnet_crypto_register_async_handler \
(vm, eidx, VNET_CRYPTO_OP_##a##_TAG##e##_AAD##f##_DEC, \
cryptodev_enqueue_gcm_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_linked_alg_enc, \
cryptodev_frame_dequeue); \
vnet_crypto_register_async_handler \
(vm, eidx, VNET_CRYPTO_OP_##a##_##c##_TAG##d##_DEC, \
cryptodev_enqueue_linked_alg_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:
*/