rte_vhost_crypto.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2017-2018 Intel Corporation
 */

#ifndef _VHOST_CRYPTO_H_
#define _VHOST_CRYPTO_H_

#include <stdint.h>

#include <rte_compat.h>

/* pre-declare structs to avoid including full headers */
struct rte_mempool;
struct rte_crypto_op;

#define VHOST_CRYPTO_MBUF_POOL_SIZE     (8192)
#define VHOST_CRYPTO_MAX_BURST_SIZE     (64)
#define VHOST_CRYPTO_MAX_DATA_SIZE      (4096)
#define VHOST_CRYPTO_SESSION_MAP_ENTRIES    (1024) 
#define VIRTIO_CRYPTO_MAX_NUM_BURST_VQS     (64)
#define VHOST_CRYPTO_MAX_IV_LEN         (32)
#define VHOST_CRYPTO_MAX_N_DESC         (32)

enum rte_vhost_crypto_zero_copy {
    RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE = 0,
    RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE = 1,
    RTE_VHOST_CRYPTO_MAX_ZERO_COPY_OPTIONS
};

__rte_experimental
int
rte_vhost_crypto_driver_start(const char *path);

__rte_experimental
int
rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
        struct rte_mempool *sess_pool,
        struct rte_mempool *sess_priv_pool,
        int socket_id);

__rte_experimental
int
rte_vhost_crypto_free(int vid);

__rte_experimental
int
rte_vhost_crypto_set_zero_copy(int vid, enum rte_vhost_crypto_zero_copy option);

__rte_experimental
uint16_t
rte_vhost_crypto_fetch_requests(int vid, uint32_t qid,
        struct rte_crypto_op **ops, uint16_t nb_ops);
__rte_experimental
uint16_t
rte_vhost_crypto_finalize_requests(struct rte_crypto_op **ops,
        uint16_t nb_ops, int *callfds, uint16_t *nb_callfds);

#endif