rte_compressdev.h

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

#ifndef _RTE_COMPRESSDEV_H_
#define _RTE_COMPRESSDEV_H_

#ifdef __cplusplus
extern "C" {
#endif


#include "rte_comp.h"

struct rte_param_log2_range {
    uint8_t min;    
    uint8_t max;    
    uint8_t increment;
};

struct rte_compressdev_capabilities {
    enum rte_comp_algorithm algo;
    /* Compression algorithm */
    uint64_t comp_feature_flags;
    struct rte_param_log2_range window_size;
};

#define RTE_COMP_END_OF_CAPABILITIES_LIST() \
    { RTE_COMP_ALGO_UNSPECIFIED }

const struct rte_compressdev_capabilities *
rte_compressdev_capability_get(uint8_t dev_id,
            enum rte_comp_algorithm algo);

#define RTE_COMPDEV_FF_HW_ACCELERATED       (1ULL << 0)

#define RTE_COMPDEV_FF_CPU_SSE          (1ULL << 1)

#define RTE_COMPDEV_FF_CPU_AVX          (1ULL << 2)

#define RTE_COMPDEV_FF_CPU_AVX2         (1ULL << 3)

#define RTE_COMPDEV_FF_CPU_AVX512       (1ULL << 4)

#define RTE_COMPDEV_FF_CPU_NEON         (1ULL << 5)

#define RTE_COMPDEV_FF_OP_DONE_IN_DEQUEUE   (1ULL << 6)

const char *
rte_compressdev_get_feature_name(uint64_t flag);

struct rte_compressdev_info {
    const char *driver_name;        
    uint64_t feature_flags;         
    const struct rte_compressdev_capabilities *capabilities;
    uint16_t max_nb_queue_pairs;
};

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


int
rte_compressdev_get_dev_id(const char *name);

const char *
rte_compressdev_name_get(uint8_t dev_id);

uint8_t
rte_compressdev_count(void);

uint8_t
rte_compressdev_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
 *   Compress device identifier
 * @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.
 */
int
rte_compressdev_socket_id(uint8_t dev_id);

struct rte_compressdev_config {
    int socket_id;
    uint16_t nb_queue_pairs;
    uint16_t max_nb_priv_xforms;
    uint16_t max_nb_streams;
};

int
rte_compressdev_configure(uint8_t dev_id,
            struct rte_compressdev_config *config);

int
rte_compressdev_start(uint8_t dev_id);

void
rte_compressdev_stop(uint8_t dev_id);

int
rte_compressdev_close(uint8_t dev_id);

int
rte_compressdev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
        uint32_t max_inflight_ops, int socket_id);

uint16_t
rte_compressdev_queue_pair_count(uint8_t dev_id);


int
rte_compressdev_stats_get(uint8_t dev_id, struct rte_compressdev_stats *stats);

void
rte_compressdev_stats_reset(uint8_t dev_id);

void
rte_compressdev_info_get(uint8_t dev_id, struct rte_compressdev_info *dev_info);

uint16_t
rte_compressdev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
        struct rte_comp_op **ops, uint16_t nb_ops);

uint16_t
rte_compressdev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
        struct rte_comp_op **ops, uint16_t nb_ops);

int
rte_compressdev_stream_create(uint8_t dev_id,
        const struct rte_comp_xform *xform,
        void **stream);

int
rte_compressdev_stream_free(uint8_t dev_id, void *stream);

int
rte_compressdev_private_xform_create(uint8_t dev_id,
        const struct rte_comp_xform *xform,
        void **private_xform);

int
rte_compressdev_private_xform_free(uint8_t dev_id, void *private_xform);

#ifdef __cplusplus
}
#endif

#endif /* _RTE_COMPRESSDEV_H_ */