rte_cryptodev_pmd.h

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/*-
 *
 *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
 *
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 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
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 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#ifndef _RTE_CRYPTODEV_PMD_H_
#define _RTE_CRYPTODEV_PMD_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <string.h>

#include <rte_dev.h>
#include <rte_pci.h>
#include <rte_malloc.h>
#include <rte_mbuf.h>
#include <rte_mempool.h>
#include <rte_log.h>

#include "rte_crypto.h"
#include "rte_cryptodev.h"


#ifdef RTE_LIBRTE_CRYPTODEV_DEBUG
#define RTE_PMD_DEBUG_TRACE(...) \
        rte_pmd_debug_trace(__func__, __VA_ARGS__)
#else
#define RTE_PMD_DEBUG_TRACE(fmt, args...)
#endif

struct rte_cryptodev_session {
        struct {
                uint8_t dev_id;
                enum rte_cryptodev_type type;
                struct rte_mempool *mp;
        } __rte_aligned(8);

        char _private[0];
};

struct rte_cryptodev_driver;

typedef int (*cryptodev_init_t)(struct rte_cryptodev_driver *drv,
                struct rte_cryptodev *dev);

typedef int (*cryptodev_uninit_t)(const struct rte_cryptodev_driver  *drv,
                                struct rte_cryptodev *dev);

struct rte_cryptodev_driver {
        struct rte_pci_driver pci_drv;  
        unsigned dev_private_size;      
        cryptodev_init_t cryptodev_init;        
        cryptodev_uninit_t cryptodev_uninit;    
};


struct rte_cryptodev_global {
        struct rte_cryptodev *devs;     
        struct rte_cryptodev_data *data[RTE_CRYPTO_MAX_DEVS];
        uint8_t nb_devs;                
        uint8_t max_devs;               
};

extern struct rte_cryptodev_global *rte_cryptodev_globals;

static inline struct rte_cryptodev *
rte_cryptodev_pmd_get_dev(uint8_t dev_id)
{
        return &rte_cryptodev_globals->devs[dev_id];
}

static inline struct rte_cryptodev *
rte_cryptodev_pmd_get_named_dev(const char *name)
{
        struct rte_cryptodev *dev;
        unsigned i;

        if (name == NULL)
                return NULL;

        for (i = 0, dev = &rte_cryptodev_globals->devs[i];
                        i < rte_cryptodev_globals->max_devs; i++) {
                if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
                                (strcmp(dev->data->name, name) == 0))
                        return dev;
        }

        return NULL;
}

static inline unsigned
rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
{
        struct rte_cryptodev *dev = NULL;

        if (dev_id >= rte_cryptodev_globals->nb_devs)
                return 0;

        dev = rte_cryptodev_pmd_get_dev(dev_id);
        if (dev->attached != RTE_CRYPTODEV_ATTACHED)
                return 0;
        else
                return 1;
}

extern struct rte_cryptodev *rte_cryptodevs;


typedef int (*cryptodev_configure_t)(struct rte_cryptodev *dev);

typedef int (*cryptodev_start_t)(struct rte_cryptodev *dev);

typedef void (*cryptodev_stop_t)(struct rte_cryptodev *dev);

typedef int (*cryptodev_close_t)(struct rte_cryptodev *dev);


typedef void (*cryptodev_stats_get_t)(struct rte_cryptodev *dev,
                                struct rte_cryptodev_stats *stats);


typedef void (*cryptodev_stats_reset_t)(struct rte_cryptodev *dev);


typedef void (*cryptodev_info_get_t)(struct rte_cryptodev *dev,
                                struct rte_cryptodev_info *dev_info);

typedef int (*cryptodev_queue_pair_start_t)(struct rte_cryptodev *dev,
                                uint16_t qp_id);

typedef int (*cryptodev_queue_pair_stop_t)(struct rte_cryptodev *dev,
                                uint16_t qp_id);

typedef int (*cryptodev_queue_pair_setup_t)(struct rte_cryptodev *dev,
                uint16_t qp_id, const struct rte_cryptodev_qp_conf *qp_conf,
                int socket_id);

typedef int (*cryptodev_queue_pair_release_t)(struct rte_cryptodev *dev,
                uint16_t qp_id);

typedef uint32_t (*cryptodev_queue_pair_count_t)(struct rte_cryptodev *dev);

typedef int (*cryptodev_sym_create_session_pool_t)(
                struct rte_cryptodev *dev, unsigned nb_objs,
                unsigned obj_cache_size, int socket_id);


typedef unsigned (*cryptodev_sym_get_session_private_size_t)(
                struct rte_cryptodev *dev);

typedef void (*cryptodev_sym_initialize_session_t)(struct rte_mempool *mempool,
                void *session_private);

typedef void * (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev,
                struct rte_crypto_sym_xform *xform, void *session_private);

typedef void (*cryptodev_sym_free_session_t)(struct rte_cryptodev *dev,
                void *session_private);


struct rte_cryptodev_ops {
        cryptodev_configure_t dev_configure;    
        cryptodev_start_t dev_start;            
        cryptodev_stop_t dev_stop;              
        cryptodev_close_t dev_close;            
        cryptodev_info_get_t dev_infos_get;     
        cryptodev_stats_get_t stats_get;
        cryptodev_stats_reset_t stats_reset;
        cryptodev_queue_pair_setup_t queue_pair_setup;
        cryptodev_queue_pair_release_t queue_pair_release;
        cryptodev_queue_pair_start_t queue_pair_start;
        cryptodev_queue_pair_stop_t queue_pair_stop;
        cryptodev_queue_pair_count_t queue_pair_count;
        cryptodev_sym_get_session_private_size_t session_get_size;
        cryptodev_sym_initialize_session_t session_initialize;
        cryptodev_sym_configure_session_t session_configure;
        cryptodev_sym_free_session_t session_clear;
};


struct rte_cryptodev *
rte_cryptodev_pmd_allocate(const char *name, enum pmd_type type, int socket_id);

struct rte_cryptodev *
rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
                int socket_id);


extern int
rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev);


extern int
rte_cryptodev_pmd_driver_register(struct rte_cryptodev_driver *crypto_drv,
                enum pmd_type type);

void rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
                                enum rte_cryptodev_event_type event);


#ifdef __cplusplus
}
#endif

#endif /* _RTE_CRYPTODEV_PMD_H_ */