DPDK  21.11.0
examples/ip_pipeline/cryptodev.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Intel Corporation
*/
#include <stdlib.h>
#include <stdio.h>
#include <rte_cryptodev.h>
#include <rte_string_fns.h>
#include "cryptodev.h"
#define PIPELINE_CRYPTO_SESSION_CACHE_SIZE 128
static struct cryptodev_list cryptodev_list;
int
cryptodev_init(void)
{
TAILQ_INIT(&cryptodev_list);
return 0;
}
struct cryptodev *
cryptodev_find(const char *name)
{
struct cryptodev *cryptodev;
if (name == NULL)
return NULL;
TAILQ_FOREACH(cryptodev, &cryptodev_list, node)
if (strcmp(cryptodev->name, name) == 0)
return cryptodev;
return NULL;
}
struct cryptodev *
cryptodev_next(struct cryptodev *cryptodev)
{
return (cryptodev == NULL) ?
TAILQ_FIRST(&cryptodev_list) :
TAILQ_NEXT(cryptodev, node);
}
struct cryptodev *
cryptodev_create(const char *name, struct cryptodev_params *params)
{
struct rte_cryptodev_info dev_info;
struct rte_cryptodev_config dev_conf;
struct rte_cryptodev_qp_conf queue_conf;
struct cryptodev *cryptodev;
uint32_t dev_id, i;
uint32_t socket_id;
uint32_t cache_size;
char mp_name[NAME_SIZE];
int status;
/* Check input params */
if ((name == NULL) ||
cryptodev_find(name) ||
(params->n_queues == 0) ||
(params->queue_size == 0) ||
(params->session_pool_size == 0))
return NULL;
if (params->dev_name) {
status = rte_cryptodev_get_dev_id(params->dev_name);
if (status == -1)
return NULL;
dev_id = (uint32_t)status;
} else {
if (rte_cryptodev_is_valid_dev(params->dev_id) == 0)
return NULL;
dev_id = params->dev_id;
}
cache_size = (params->session_pool_size / 2 <
PIPELINE_CRYPTO_SESSION_CACHE_SIZE) ?
(params->session_pool_size / 2) :
PIPELINE_CRYPTO_SESSION_CACHE_SIZE;
socket_id = rte_cryptodev_socket_id(dev_id);
rte_cryptodev_info_get(dev_id, &dev_info);
if (dev_info.max_nb_queue_pairs < params->n_queues)
return NULL;
dev_conf.socket_id = socket_id;
dev_conf.nb_queue_pairs = params->n_queues;
dev_conf.ff_disable = 0;
status = rte_cryptodev_configure(dev_id, &dev_conf);
if (status < 0)
return NULL;
queue_conf.nb_descriptors = params->queue_size;
for (i = 0; i < params->n_queues; i++) {
status = rte_cryptodev_queue_pair_setup(dev_id, i,
&queue_conf, socket_id);
if (status < 0)
return NULL;
}
if (rte_cryptodev_start(dev_id) < 0)
return NULL;
cryptodev = calloc(1, sizeof(struct cryptodev));
if (cryptodev == NULL) {
return NULL;
}
strlcpy(cryptodev->name, name, sizeof(cryptodev->name));
cryptodev->dev_id = dev_id;
cryptodev->n_queues = params->n_queues;
snprintf(mp_name, NAME_SIZE, "%s_mp%u", name, dev_id);
cryptodev->mp_create = rte_cryptodev_sym_session_pool_create(
mp_name,
params->session_pool_size,
0,
cache_size,
0,
socket_id);
if (!cryptodev->mp_create)
goto error_exit;
snprintf(mp_name, NAME_SIZE, "%s_mp_priv%u", name, dev_id);
cryptodev->mp_init = rte_mempool_create(
NULL,
params->session_pool_size,
cache_size,
0,
NULL,
NULL,
NULL,
NULL,
socket_id,
0);
if (!cryptodev->mp_init)
goto error_exit;
TAILQ_INSERT_TAIL(&cryptodev_list, cryptodev, node);
return cryptodev;
error_exit:
if (cryptodev->mp_create)
rte_mempool_free(cryptodev->mp_create);
if (cryptodev->mp_init)
rte_mempool_free(cryptodev->mp_init);
free(cryptodev);
return NULL;
}