rte_cryptodev.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2015-2017 Intel Corporation.
 */

#ifndef _RTE_CRYPTODEV_H_
#define _RTE_CRYPTODEV_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "rte_kvargs.h"
#include "rte_crypto.h"
#include "rte_dev.h"
#include <rte_common.h>
#include <rte_config.h>

extern const char **rte_cyptodev_names;

/* Logging Macros */

#define CDEV_LOG_ERR(...) \
        RTE_LOG(ERR, CRYPTODEV, \
                RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
                        __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))

#define CDEV_LOG_INFO(...) \
        RTE_LOG(INFO, CRYPTODEV, \
                RTE_FMT(RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
                        RTE_FMT_TAIL(__VA_ARGS__,)))

#define CDEV_LOG_DEBUG(...) \
        RTE_LOG(DEBUG, CRYPTODEV, \
                RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
                        __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))

#define CDEV_PMD_TRACE(...) \
        RTE_LOG(DEBUG, CRYPTODEV, \
                RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
                        dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))

#define rte_crypto_op_ctod_offset(c, t, o)      \
        ((t)((char *)(c) + (o)))

#define rte_crypto_op_ctophys_offset(c, o)      \
        (rte_iova_t)((c)->phys_addr + (o))

struct rte_crypto_param_range {
        uint16_t min;   
        uint16_t max;   
        uint16_t increment;
};

struct rte_cryptodev_symmetric_capability {
        enum rte_crypto_sym_xform_type xform_type;
        RTE_STD_C11
        union {
                struct {
                        enum rte_crypto_auth_algorithm algo;
                        uint16_t block_size;
                        struct rte_crypto_param_range key_size;
                        struct rte_crypto_param_range digest_size;
                        struct rte_crypto_param_range aad_size;
                        struct rte_crypto_param_range iv_size;
                } auth;
                struct {
                        enum rte_crypto_cipher_algorithm algo;
                        uint16_t block_size;
                        struct rte_crypto_param_range key_size;
                        struct rte_crypto_param_range iv_size;
                } cipher;
                struct {
                        enum rte_crypto_aead_algorithm algo;
                        uint16_t block_size;
                        struct rte_crypto_param_range key_size;
                        struct rte_crypto_param_range digest_size;
                        struct rte_crypto_param_range aad_size;
                        struct rte_crypto_param_range iv_size;
                } aead;
        };
};

struct rte_cryptodev_asymmetric_xform_capability {
        enum rte_crypto_asym_xform_type xform_type;
        uint32_t op_types;
        __extension__
        union {
                struct rte_crypto_param_range modlen;
        };
};

struct rte_cryptodev_asymmetric_capability {
        struct rte_cryptodev_asymmetric_xform_capability xform_capa;
};


struct rte_cryptodev_capabilities {
        enum rte_crypto_op_type op;
        RTE_STD_C11
        union {
                struct rte_cryptodev_symmetric_capability sym;
                struct rte_cryptodev_asymmetric_capability asym;
        };
};

struct rte_cryptodev_sym_capability_idx {
        enum rte_crypto_sym_xform_type type;
        union {
                enum rte_crypto_cipher_algorithm cipher;
                enum rte_crypto_auth_algorithm auth;
                enum rte_crypto_aead_algorithm aead;
        } algo;
};

struct rte_cryptodev_asym_capability_idx {
        enum rte_crypto_asym_xform_type type;
};

const struct rte_cryptodev_symmetric_capability *
rte_cryptodev_sym_capability_get(uint8_t dev_id,
                const struct rte_cryptodev_sym_capability_idx *idx);

const struct rte_cryptodev_asymmetric_xform_capability * __rte_experimental
rte_cryptodev_asym_capability_get(uint8_t dev_id,
                const struct rte_cryptodev_asym_capability_idx *idx);

int
rte_cryptodev_sym_capability_check_cipher(
                const struct rte_cryptodev_symmetric_capability *capability,
                uint16_t key_size, uint16_t iv_size);

int
rte_cryptodev_sym_capability_check_auth(
                const struct rte_cryptodev_symmetric_capability *capability,
                uint16_t key_size, uint16_t digest_size, uint16_t iv_size);

int
rte_cryptodev_sym_capability_check_aead(
                const struct rte_cryptodev_symmetric_capability *capability,
                uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
                uint16_t iv_size);

int __rte_experimental
rte_cryptodev_asym_xform_capability_check_optype(
        const struct rte_cryptodev_asymmetric_xform_capability *capability,
                enum rte_crypto_asym_op_type op_type);

int __rte_experimental
rte_cryptodev_asym_xform_capability_check_modlen(
        const struct rte_cryptodev_asymmetric_xform_capability *capability,
                uint16_t modlen);

int
rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
                const char *algo_string);

int
rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
                const char *algo_string);

int
rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
                const char *algo_string);

int __rte_experimental
rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
                const char *xform_string);


#define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
        { RTE_CRYPTO_OP_TYPE_UNDEFINED }


#define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO               (1ULL << 0)

#define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO              (1ULL << 1)

#define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING         (1ULL << 2)

#define RTE_CRYPTODEV_FF_CPU_SSE                        (1ULL << 3)

#define RTE_CRYPTODEV_FF_CPU_AVX                        (1ULL << 4)

#define RTE_CRYPTODEV_FF_CPU_AVX2                       (1ULL << 5)

#define RTE_CRYPTODEV_FF_CPU_AESNI                      (1ULL << 6)

#define RTE_CRYPTODEV_FF_HW_ACCELERATED                 (1ULL << 7)

#define RTE_CRYPTODEV_FF_CPU_AVX512                     (1ULL << 8)

#define RTE_CRYPTODEV_FF_IN_PLACE_SGL                   (1ULL << 9)

#define RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT             (1ULL << 10)

#define RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT              (1ULL << 11)

#define RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT              (1ULL << 12)

#define RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT               (1ULL << 13)

#define RTE_CRYPTODEV_FF_CPU_NEON                       (1ULL << 14)

#define RTE_CRYPTODEV_FF_CPU_ARM_CE                     (1ULL << 15)

#define RTE_CRYPTODEV_FF_SECURITY                       (1ULL << 16)

#define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP            (1ULL << 17)

#define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT             (1ULL << 18)

extern const char *
rte_cryptodev_get_feature_name(uint64_t flag);

struct rte_cryptodev_info {
        const char *driver_name;        
        uint8_t driver_id;              
        struct rte_device *device;      
        uint64_t feature_flags;
        const struct rte_cryptodev_capabilities *capabilities;
        unsigned max_nb_queue_pairs;
        uint16_t min_mbuf_headroom_req;
        uint16_t min_mbuf_tailroom_req;
        struct {
                unsigned max_nb_sessions;
        } sym;
};

#define RTE_CRYPTODEV_DETACHED  (0)
#define RTE_CRYPTODEV_ATTACHED  (1)

enum rte_cryptodev_event_type {
        RTE_CRYPTODEV_EVENT_UNKNOWN,    
        RTE_CRYPTODEV_EVENT_ERROR,      
        RTE_CRYPTODEV_EVENT_MAX         
};

struct rte_cryptodev_qp_conf {
        uint32_t nb_descriptors; 
        struct rte_mempool *mp_session;
        struct rte_mempool *mp_session_private;
};

typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
                enum rte_cryptodev_event_type event, void *cb_arg);


struct rte_cryptodev_stats {
        uint64_t enqueued_count;
        uint64_t dequeued_count;
        uint64_t enqueue_err_count;
        uint64_t dequeue_err_count;
};

#define RTE_CRYPTODEV_NAME_MAX_LEN      (64)

extern int
rte_cryptodev_get_dev_id(const char *name);

extern const char *
rte_cryptodev_name_get(uint8_t dev_id);

extern uint8_t
rte_cryptodev_count(void);

extern uint8_t
rte_cryptodev_device_count_by_driver(uint8_t driver_id);

uint8_t
rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
                uint8_t nb_devices);
/*
 * Return the NUMA socket to which a device is connected
 *
 * @param dev_id
 *   The identifier of the device
 * @return
 *   The NUMA socket id to which the device is connected or
 *   a default of zero if the socket could not be determined.
 *   -1 if returned is the dev_id value is out of range.
 */
extern int
rte_cryptodev_socket_id(uint8_t dev_id);

struct rte_cryptodev_config {
        int socket_id;                  
        uint16_t nb_queue_pairs;
};

extern int
rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);

extern int
rte_cryptodev_start(uint8_t dev_id);

extern void
rte_cryptodev_stop(uint8_t dev_id);

extern int
rte_cryptodev_close(uint8_t dev_id);

extern int
rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
                const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);

extern uint16_t
rte_cryptodev_queue_pair_count(uint8_t dev_id);


extern int
rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);

extern void
rte_cryptodev_stats_reset(uint8_t dev_id);

extern void
rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);


extern int
rte_cryptodev_callback_register(uint8_t dev_id,
                enum rte_cryptodev_event_type event,
                rte_cryptodev_cb_fn cb_fn, void *cb_arg);

extern int
rte_cryptodev_callback_unregister(uint8_t dev_id,
                enum rte_cryptodev_event_type event,
                rte_cryptodev_cb_fn cb_fn, void *cb_arg);


typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
                struct rte_crypto_op **ops,     uint16_t nb_ops);
typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
                struct rte_crypto_op **ops,     uint16_t nb_ops);
struct rte_cryptodev_callback;

TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);

struct rte_cryptodev {
        dequeue_pkt_burst_t dequeue_burst;
        enqueue_pkt_burst_t enqueue_burst;
        struct rte_cryptodev_data *data;
        struct rte_cryptodev_ops *dev_ops;
        uint64_t feature_flags;
        struct rte_device *device;
        uint8_t driver_id;
        struct rte_cryptodev_cb_list link_intr_cbs;
        void *security_ctx;
        __extension__
        uint8_t attached : 1;
} __rte_cache_aligned;

void *
rte_cryptodev_get_sec_ctx(uint8_t dev_id);

struct rte_cryptodev_data {
        uint8_t dev_id;
        uint8_t socket_id;
        char name[RTE_CRYPTODEV_NAME_MAX_LEN];
        __extension__
        uint8_t dev_started : 1;
        struct rte_mempool *session_pool;
        void **queue_pairs;
        uint16_t nb_queue_pairs;
        void *dev_private;
} __rte_cache_aligned;

extern struct rte_cryptodev *rte_cryptodevs;
static inline uint16_t
rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
                struct rte_crypto_op **ops, uint16_t nb_ops)
{
        struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];

        nb_ops = (*dev->dequeue_burst)
                        (dev->data->queue_pairs[qp_id], ops, nb_ops);

        return nb_ops;
}

static inline uint16_t
rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
                struct rte_crypto_op **ops, uint16_t nb_ops)
{
        struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];

        return (*dev->enqueue_burst)(
                        dev->data->queue_pairs[qp_id], ops, nb_ops);
}


struct rte_cryptodev_sym_session {
        uint64_t opaque_data;
        uint16_t nb_drivers;
        uint16_t user_data_sz;
        __extension__ struct {
                void *data;
                uint16_t refcnt;
        } sess_data[0];
};

struct rte_cryptodev_asym_session {
        __extension__ void *sess_private_data[0];
};

struct rte_mempool * __rte_experimental
rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
        uint32_t elt_size, uint32_t cache_size, uint16_t priv_size,
        int socket_id);

struct rte_cryptodev_sym_session *
rte_cryptodev_sym_session_create(struct rte_mempool *mempool);

struct rte_cryptodev_asym_session * __rte_experimental
rte_cryptodev_asym_session_create(struct rte_mempool *mempool);

int
rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);

int __rte_experimental
rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess);

int
rte_cryptodev_sym_session_init(uint8_t dev_id,
                        struct rte_cryptodev_sym_session *sess,
                        struct rte_crypto_sym_xform *xforms,
                        struct rte_mempool *mempool);

int __rte_experimental
rte_cryptodev_asym_session_init(uint8_t dev_id,
                        struct rte_cryptodev_asym_session *sess,
                        struct rte_crypto_asym_xform *xforms,
                        struct rte_mempool *mempool);

int
rte_cryptodev_sym_session_clear(uint8_t dev_id,
                        struct rte_cryptodev_sym_session *sess);

int __rte_experimental
rte_cryptodev_asym_session_clear(uint8_t dev_id,
                        struct rte_cryptodev_asym_session *sess);

unsigned int
rte_cryptodev_sym_get_header_session_size(void);

unsigned int __rte_experimental
rte_cryptodev_sym_get_existing_header_session_size(
                struct rte_cryptodev_sym_session *sess);

unsigned int __rte_experimental
rte_cryptodev_asym_get_header_session_size(void);

unsigned int
rte_cryptodev_sym_get_private_session_size(uint8_t dev_id);

unsigned int __rte_experimental
rte_cryptodev_asym_get_private_session_size(uint8_t dev_id);

int rte_cryptodev_driver_id_get(const char *name);

const char *rte_cryptodev_driver_name_get(uint8_t driver_id);

int __rte_experimental
rte_cryptodev_sym_session_set_user_data(
                                        struct rte_cryptodev_sym_session *sess,
                                        void *data,
                                        uint16_t size);

void * __rte_experimental
rte_cryptodev_sym_session_get_user_data(
                                        struct rte_cryptodev_sym_session *sess);

#ifdef __cplusplus
}
#endif

#endif /* _RTE_CRYPTODEV_H_ */