/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2015-2020 Intel Corporation
 */

#include <sys/queue.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdint.h>
#include <inttypes.h>

#include <rte_log.h>
#include <rte_debug.h>
#include <rte_dev.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_memzone.h>
#include <rte_eal.h>
#include <rte_common.h>
#include <rte_mempool.h>
#include <rte_malloc.h>
#include <rte_errno.h>
#include <rte_spinlock.h>
#include <rte_string_fns.h>
#include <rte_telemetry.h>

#include "rte_crypto.h"
#include "rte_cryptodev.h"
#include "cryptodev_pmd.h"
#include "rte_cryptodev_trace.h"

static uint8_t nb_drivers;

static struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];

struct rte_cryptodev *rte_cryptodevs = rte_crypto_devices;

static struct rte_cryptodev_global cryptodev_globals = {
                .devs                   = rte_crypto_devices,
                .data                   = { NULL },
                .nb_devs                = 0
};

/* Public fastpath APIs. */
struct rte_crypto_fp_ops rte_crypto_fp_ops[RTE_CRYPTO_MAX_DEVS];

/* spinlock for crypto device callbacks */
static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;

/**
 * The user application callback description.
 *
 * It contains callback address to be registered by user application,
 * the pointer to the parameters for callback, and the event type.
 */
struct rte_cryptodev_callback {
        TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
        rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
        void *cb_arg;                           /**< Parameter for callback */
        enum rte_cryptodev_event_type event;    /**< Interrupt event type */
        uint32_t active;                        /**< Callback is executing */
};

/**
 * The crypto cipher algorithm strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_cipher_algorithm_strings[] = {
        [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
        [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
        [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",

        [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
        [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
        [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
        [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
        [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
        [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",

        [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",

        [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
        [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",

        [RTE_CRYPTO_CIPHER_NULL]        = "null",

        [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
        [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
        [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
};

/**
 * The crypto cipher operation strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_cipher_operation_strings[] = {
                [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
                [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
};

/**
 * The crypto auth algorithm strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_auth_algorithm_strings[] = {
        [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
        [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
        [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
        [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",

        [RTE_CRYPTO_AUTH_MD5]           = "md5",
        [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",

        [RTE_CRYPTO_AUTH_NULL]          = "null",

        [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
        [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",

        [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
        [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
        [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
        [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
        [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
        [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
        [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
        [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",

        [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
        [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
        [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
};

/**
 * The crypto AEAD algorithm strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_aead_algorithm_strings[] = {
        [RTE_CRYPTO_AEAD_AES_CCM]       = "aes-ccm",
        [RTE_CRYPTO_AEAD_AES_GCM]       = "aes-gcm",
        [RTE_CRYPTO_AEAD_CHACHA20_POLY1305] = "chacha20-poly1305"
};

/**
 * The crypto AEAD operation strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_aead_operation_strings[] = {
        [RTE_CRYPTO_AEAD_OP_ENCRYPT]    = "encrypt",
        [RTE_CRYPTO_AEAD_OP_DECRYPT]    = "decrypt"
};

/**
 * Asymmetric crypto transform operation strings identifiers.
 */
const char *rte_crypto_asym_xform_strings[] = {
        [RTE_CRYPTO_ASYM_XFORM_NONE]    = "none",
        [RTE_CRYPTO_ASYM_XFORM_RSA]     = "rsa",
        [RTE_CRYPTO_ASYM_XFORM_MODEX]   = "modexp",
        [RTE_CRYPTO_ASYM_XFORM_MODINV]  = "modinv",
        [RTE_CRYPTO_ASYM_XFORM_DH]      = "dh",
        [RTE_CRYPTO_ASYM_XFORM_DSA]     = "dsa",
        [RTE_CRYPTO_ASYM_XFORM_ECDSA]   = "ecdsa",
        [RTE_CRYPTO_ASYM_XFORM_ECPM]    = "ecpm",
};

/**
 * Asymmetric crypto operation strings identifiers.
 */
const char *rte_crypto_asym_op_strings[] = {
        [RTE_CRYPTO_ASYM_OP_ENCRYPT]    = "encrypt",
        [RTE_CRYPTO_ASYM_OP_DECRYPT]    = "decrypt",
        [RTE_CRYPTO_ASYM_OP_SIGN]       = "sign",
        [RTE_CRYPTO_ASYM_OP_VERIFY]     = "verify"
};

/**
 * Asymmetric crypto key exchange operation strings identifiers.
 */
const char *rte_crypto_asym_ke_strings[] = {
        [RTE_CRYPTO_ASYM_KE_PRIV_KEY_GENERATE] = "priv_key_generate",
        [RTE_CRYPTO_ASYM_KE_PUB_KEY_GENERATE] = "pub_key_generate",
        [RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE] = "sharedsecret_compute",
        [RTE_CRYPTO_ASYM_KE_PUB_KEY_VERIFY] = "pub_ec_key_verify"
};

/**
 * The private data structure stored in the sym session mempool private data.
 */
struct rte_cryptodev_sym_session_pool_private_data {
        uint16_t nb_drivers;
        /**< number of elements in sess_data array */
        uint16_t user_data_sz;
        /**< session user data will be placed after sess_data */
};

/**
 * The private data structure stored in the asym session mempool private data.
 */
struct rte_cryptodev_asym_session_pool_private_data {
        uint16_t max_priv_session_sz;
        /**< Size of private session data used when creating mempool */
        uint16_t user_data_sz;
        /**< Session user data will be placed after sess_private_data */
};

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

        for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
                if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
                        *algo_enum = (enum rte_crypto_cipher_algorithm) i;
                        return 0;
                }
        }

        /* Invalid string */
        return -1;
}

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

        for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
                if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
                        *algo_enum = (enum rte_crypto_auth_algorithm) i;
                        return 0;
                }
        }

        /* Invalid string */
        return -1;
}

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

        for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
                if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
                        *algo_enum = (enum rte_crypto_aead_algorithm) i;
                        return 0;
                }
        }

        /* Invalid string */
        return -1;
}

int
rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
                const char *xform_string)
{
        unsigned int i;

        for (i = 1; i < RTE_DIM(rte_crypto_asym_xform_strings); i++) {
                if (strcmp(xform_string,
                        rte_crypto_asym_xform_strings[i]) == 0) {
                        *xform_enum = (enum rte_crypto_asym_xform_type) i;
                        return 0;
                }
        }

        /* Invalid string */
        return -1;
}

/**
 * The crypto auth operation strings identifiers.
 * It could be used in application command line.
 */
const char *
rte_crypto_auth_operation_strings[] = {
                [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
                [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
};

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_capabilities *capability;
        struct rte_cryptodev_info dev_info;
        int i = 0;

        rte_cryptodev_info_get(dev_id, &dev_info);

        while ((capability = &dev_info.capabilities[i++])->op !=
                        RTE_CRYPTO_OP_TYPE_UNDEFINED) {
                if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
                        continue;

                if (capability->sym.xform_type != idx->type)
                        continue;

                if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
                        capability->sym.auth.algo == idx->algo.auth)
                        return &capability->sym;

                if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
                        capability->sym.cipher.algo == idx->algo.cipher)
                        return &capability->sym;

                if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
                                capability->sym.aead.algo == idx->algo.aead)
                        return &capability->sym;
        }

        return NULL;
}

static int
param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
{
        unsigned int next_size;

        /* Check lower/upper bounds */
        if (size < range->min)
                return -1;

        if (size > range->max)
                return -1;

        /* If range is actually only one value, size is correct */
        if (range->increment == 0)
                return 0;

        /* Check if value is one of the supported sizes */
        for (next_size = range->min; next_size <= range->max;
                        next_size += range->increment)
                if (size == next_size)
                        return 0;

        return -1;
}

const struct rte_cryptodev_asymmetric_xform_capability *
rte_cryptodev_asym_capability_get(uint8_t dev_id,
                const struct rte_cryptodev_asym_capability_idx *idx)
{
        const struct rte_cryptodev_capabilities *capability;
        struct rte_cryptodev_info dev_info;
        unsigned int i = 0;

        memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
        rte_cryptodev_info_get(dev_id, &dev_info);

        while ((capability = &dev_info.capabilities[i++])->op !=
                        RTE_CRYPTO_OP_TYPE_UNDEFINED) {
                if (capability->op != RTE_CRYPTO_OP_TYPE_ASYMMETRIC)
                        continue;

                if (capability->asym.xform_capa.xform_type == idx->type)
                        return &capability->asym.xform_capa;
        }
        return NULL;
};

int
rte_cryptodev_sym_capability_check_cipher(
                const struct rte_cryptodev_symmetric_capability *capability,
                uint16_t key_size, uint16_t iv_size)
{
        if (param_range_check(key_size, &capability->cipher.key_size) != 0)
                return -1;

        if (param_range_check(iv_size, &capability->cipher.iv_size) != 0)
                return -1;

        return 0;
}

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)
{
        if (param_range_check(key_size, &capability->auth.key_size) != 0)
                return -1;

        if (param_range_check(digest_size, &capability->auth.digest_size) != 0)
                return -1;

        if (param_range_check(iv_size, &capability->auth.iv_size) != 0)
                return -1;

        return 0;
}

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)
{
        if (param_range_check(key_size, &capability->aead.key_size) != 0)
                return -1;

        if (param_range_check(digest_size, &capability->aead.digest_size) != 0)
                return -1;

        if (param_range_check(aad_size, &capability->aead.aad_size) != 0)
                return -1;

        if (param_range_check(iv_size, &capability->aead.iv_size) != 0)
                return -1;

        return 0;
}
int
rte_cryptodev_asym_xform_capability_check_optype(
        const struct rte_cryptodev_asymmetric_xform_capability *capability,
        enum rte_crypto_asym_op_type op_type)
{
        if (capability->op_types & (1 << op_type))
                return 1;

        return 0;
}

int
rte_cryptodev_asym_xform_capability_check_modlen(
        const struct rte_cryptodev_asymmetric_xform_capability *capability,
        uint16_t modlen)
{
        /* no need to check for limits, if min or max = 0 */
        if (capability->modlen.min != 0) {
                if (modlen < capability->modlen.min)
                        return -1;
        }

        if (capability->modlen.max != 0) {
                if (modlen > capability->modlen.max)
                        return -1;
        }

        /* in any case, check if given modlen is module increment */
        if (capability->modlen.increment != 0) {
                if (modlen % (capability->modlen.increment))
                        return -1;
        }

        return 0;
}

/* spinlock for crypto device enq callbacks */
static rte_spinlock_t rte_cryptodev_callback_lock = RTE_SPINLOCK_INITIALIZER;

static void
cryptodev_cb_cleanup(struct rte_cryptodev *dev)
{
        struct rte_cryptodev_cb_rcu *list;
        struct rte_cryptodev_cb *cb, *next;
        uint16_t qp_id;

        if (dev->enq_cbs == NULL && dev->deq_cbs == NULL)
                return;

        for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
                list = &dev->enq_cbs[qp_id];
                cb = list->next;
                while (cb != NULL) {
                        next = cb->next;
                        rte_free(cb);
                        cb = next;
                }

                rte_free(list->qsbr);
        }

        for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
                list = &dev->deq_cbs[qp_id];
                cb = list->next;
                while (cb != NULL) {
                        next = cb->next;
                        rte_free(cb);
                        cb = next;
                }

                rte_free(list->qsbr);
        }

        rte_free(dev->enq_cbs);
        dev->enq_cbs = NULL;
        rte_free(dev->deq_cbs);
        dev->deq_cbs = NULL;
}

static int
cryptodev_cb_init(struct rte_cryptodev *dev)
{
        struct rte_cryptodev_cb_rcu *list;
        struct rte_rcu_qsbr *qsbr;
        uint16_t qp_id;
        size_t size;

        /* Max thread set to 1, as one DP thread accessing a queue-pair */
        const uint32_t max_threads = 1;

        dev->enq_cbs = rte_zmalloc(NULL,
                                   sizeof(struct rte_cryptodev_cb_rcu) *
                                   dev->data->nb_queue_pairs, 0);
        if (dev->enq_cbs == NULL) {
                CDEV_LOG_ERR("Failed to allocate memory for enq callbacks");
                return -ENOMEM;
        }

        dev->deq_cbs = rte_zmalloc(NULL,
                                   sizeof(struct rte_cryptodev_cb_rcu) *
                                   dev->data->nb_queue_pairs, 0);
        if (dev->deq_cbs == NULL) {
                CDEV_LOG_ERR("Failed to allocate memory for deq callbacks");
                rte_free(dev->enq_cbs);
                return -ENOMEM;
        }

        /* Create RCU QSBR variable */
        size = rte_rcu_qsbr_get_memsize(max_threads);

        for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
                list = &dev->enq_cbs[qp_id];
                qsbr = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
                if (qsbr == NULL) {
                        CDEV_LOG_ERR("Failed to allocate memory for RCU on "
                                "queue_pair_id=%d", qp_id);
                        goto cb_init_err;
                }

                if (rte_rcu_qsbr_init(qsbr, max_threads)) {
                        CDEV_LOG_ERR("Failed to initialize for RCU on "
                                "queue_pair_id=%d", qp_id);
                        goto cb_init_err;
                }

                list->qsbr = qsbr;
        }

        for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
                list = &dev->deq_cbs[qp_id];
                qsbr = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
                if (qsbr == NULL) {
                        CDEV_LOG_ERR("Failed to allocate memory for RCU on "
                                "queue_pair_id=%d", qp_id);
                        goto cb_init_err;
                }

                if (rte_rcu_qsbr_init(qsbr, max_threads)) {
                        CDEV_LOG_ERR("Failed to initialize for RCU on "
                                "queue_pair_id=%d", qp_id);
                        goto cb_init_err;
                }

                list->qsbr = qsbr;
        }

        return 0;

cb_init_err:
        cryptodev_cb_cleanup(dev);
        return -ENOMEM;
}

const char *
rte_cryptodev_get_feature_name(uint64_t flag)
{
        switch (flag) {
        case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
                return "SYMMETRIC_CRYPTO";
        case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
                return "ASYMMETRIC_CRYPTO";
        case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
                return "SYM_OPERATION_CHAINING";
        case RTE_CRYPTODEV_FF_CPU_SSE:
                return "CPU_SSE";
        case RTE_CRYPTODEV_FF_CPU_AVX:
                return "CPU_AVX";
        case RTE_CRYPTODEV_FF_CPU_AVX2:
                return "CPU_AVX2";
        case RTE_CRYPTODEV_FF_CPU_AVX512:
                return "CPU_AVX512";
        case RTE_CRYPTODEV_FF_CPU_AESNI:
                return "CPU_AESNI";
        case RTE_CRYPTODEV_FF_HW_ACCELERATED:
                return "HW_ACCELERATED";
        case RTE_CRYPTODEV_FF_IN_PLACE_SGL:
                return "IN_PLACE_SGL";
        case RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT:
                return "OOP_SGL_IN_SGL_OUT";
        case RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT:
                return "OOP_SGL_IN_LB_OUT";
        case RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT:
                return "OOP_LB_IN_SGL_OUT";
        case RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT:
                return "OOP_LB_IN_LB_OUT";
        case RTE_CRYPTODEV_FF_CPU_NEON:
                return "CPU_NEON";
        case RTE_CRYPTODEV_FF_CPU_ARM_CE:
                return "CPU_ARM_CE";
        case RTE_CRYPTODEV_FF_SECURITY:
                return "SECURITY_PROTOCOL";
        case RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP:
                return "RSA_PRIV_OP_KEY_EXP";
        case RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT:
                return "RSA_PRIV_OP_KEY_QT";
        case RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED:
                return "DIGEST_ENCRYPTED";
        case RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO:
                return "SYM_CPU_CRYPTO";
        case RTE_CRYPTODEV_FF_ASYM_SESSIONLESS:
                return "ASYM_SESSIONLESS";
        case RTE_CRYPTODEV_FF_SYM_SESSIONLESS:
                return "SYM_SESSIONLESS";
        case RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA:
                return "NON_BYTE_ALIGNED_DATA";
        case RTE_CRYPTODEV_FF_CIPHER_MULTIPLE_DATA_UNITS:
                return "CIPHER_MULTIPLE_DATA_UNITS";
        case RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY:
                return "CIPHER_WRAPPED_KEY";
        default:
                return NULL;
        }
}

struct rte_cryptodev *
rte_cryptodev_pmd_get_dev(uint8_t dev_id)
{
        return &cryptodev_globals.devs[dev_id];
}

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

        if (name == NULL)
                return NULL;

        for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
                dev = &cryptodev_globals.devs[i];

                if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
                                (strcmp(dev->data->name, name) == 0))
                        return dev;
        }

        return NULL;
}

static inline uint8_t
rte_cryptodev_is_valid_device_data(uint8_t dev_id)
{
        if (dev_id >= RTE_CRYPTO_MAX_DEVS ||
                        rte_crypto_devices[dev_id].data == NULL)
                return 0;

        return 1;
}

unsigned int
rte_cryptodev_is_valid_dev(uint8_t dev_id)
{
        struct rte_cryptodev *dev = NULL;

        if (!rte_cryptodev_is_valid_device_data(dev_id))
                return 0;

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


int
rte_cryptodev_get_dev_id(const char *name)
{
        unsigned i;

        if (name == NULL)
                return -1;

        for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
                if (!rte_cryptodev_is_valid_device_data(i))
                        continue;
                if ((strcmp(cryptodev_globals.devs[i].data->name, name)
                                == 0) &&
                                (cryptodev_globals.devs[i].attached ==
                                                RTE_CRYPTODEV_ATTACHED))
                        return i;
        }

        return -1;
}

uint8_t
rte_cryptodev_count(void)
{
        return cryptodev_globals.nb_devs;
}

uint8_t
rte_cryptodev_device_count_by_driver(uint8_t driver_id)
{
        uint8_t i, dev_count = 0;

        for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++)
                if (cryptodev_globals.devs[i].driver_id == driver_id &&
                        cryptodev_globals.devs[i].attached ==
                                        RTE_CRYPTODEV_ATTACHED)
                        dev_count++;

        return dev_count;
}

uint8_t
rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
        uint8_t nb_devices)
{
        uint8_t i, count = 0;
        struct rte_cryptodev *devs = cryptodev_globals.devs;

        for (i = 0; i < RTE_CRYPTO_MAX_DEVS && count < nb_devices; i++) {
                if (!rte_cryptodev_is_valid_device_data(i))
                        continue;

                if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
                        int cmp;

                        cmp = strncmp(devs[i].device->driver->name,
                                        driver_name,
                                        strlen(driver_name) + 1);

                        if (cmp == 0)
                                devices[count++] = devs[i].data->dev_id;
                }
        }

        return count;
}

void *
rte_cryptodev_get_sec_ctx(uint8_t dev_id)
{
        if (dev_id < RTE_CRYPTO_MAX_DEVS &&
                        (rte_crypto_devices[dev_id].feature_flags &
                        RTE_CRYPTODEV_FF_SECURITY))
                return rte_crypto_devices[dev_id].security_ctx;

        return NULL;
}

int
rte_cryptodev_socket_id(uint8_t dev_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id))
                return -1;

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        return dev->data->socket_id;
}

static inline int
rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
                int socket_id)
{
        char mz_name[RTE_MEMZONE_NAMESIZE];
        const struct rte_memzone *mz;
        int n;

        /* generate memzone name */
        n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
        if (n >= (int)sizeof(mz_name))
                return -EINVAL;

        if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
                mz = rte_memzone_reserve(mz_name,
                                sizeof(struct rte_cryptodev_data),
                                socket_id, 0);
                CDEV_LOG_DEBUG("PRIMARY:reserved memzone for %s (%p)",
                                mz_name, mz);
        } else {
                mz = rte_memzone_lookup(mz_name);
                CDEV_LOG_DEBUG("SECONDARY:looked up memzone for %s (%p)",
                                mz_name, mz);
        }

        if (mz == NULL)
                return -ENOMEM;

        *data = mz->addr;
        if (rte_eal_process_type() == RTE_PROC_PRIMARY)
                memset(*data, 0, sizeof(struct rte_cryptodev_data));

        return 0;
}

static inline int
rte_cryptodev_data_free(uint8_t dev_id, struct rte_cryptodev_data **data)
{
        char mz_name[RTE_MEMZONE_NAMESIZE];
        const struct rte_memzone *mz;
        int n;

        /* generate memzone name */
        n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
        if (n >= (int)sizeof(mz_name))
                return -EINVAL;

        mz = rte_memzone_lookup(mz_name);
        if (mz == NULL)
                return -ENOMEM;

        RTE_ASSERT(*data == mz->addr);
        *data = NULL;

        if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
                CDEV_LOG_DEBUG("PRIMARY:free memzone of %s (%p)",
                                mz_name, mz);
                return rte_memzone_free(mz);
        } else {
                CDEV_LOG_DEBUG("SECONDARY:don't free memzone of %s (%p)",
                                mz_name, mz);
        }

        return 0;
}

static uint8_t
rte_cryptodev_find_free_device_index(void)
{
        uint8_t dev_id;

        for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
                if (rte_crypto_devices[dev_id].attached ==
                                RTE_CRYPTODEV_DETACHED)
                        return dev_id;
        }
        return RTE_CRYPTO_MAX_DEVS;
}

struct rte_cryptodev *
rte_cryptodev_pmd_allocate(const char *name, int socket_id)
{
        struct rte_cryptodev *cryptodev;
        uint8_t dev_id;

        if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
                CDEV_LOG_ERR("Crypto device with name %s already "
                                "allocated!", name);
                return NULL;
        }

        dev_id = rte_cryptodev_find_free_device_index();
        if (dev_id == RTE_CRYPTO_MAX_DEVS) {
                CDEV_LOG_ERR("Reached maximum number of crypto devices");
                return NULL;
        }

        cryptodev = rte_cryptodev_pmd_get_dev(dev_id);

        if (cryptodev->data == NULL) {
                struct rte_cryptodev_data **cryptodev_data =
                                &cryptodev_globals.data[dev_id];

                int retval = rte_cryptodev_data_alloc(dev_id, cryptodev_data,
                                socket_id);

                if (retval < 0 || *cryptodev_data == NULL)
                        return NULL;

                cryptodev->data = *cryptodev_data;

                if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
                        strlcpy(cryptodev->data->name, name,
                                RTE_CRYPTODEV_NAME_MAX_LEN);

                        cryptodev->data->dev_id = dev_id;
                        cryptodev->data->socket_id = socket_id;
                        cryptodev->data->dev_started = 0;
                        CDEV_LOG_DEBUG("PRIMARY:init data");
                }

                CDEV_LOG_DEBUG("Data for %s: dev_id %d, socket %d, started %d",
                                cryptodev->data->name,
                                cryptodev->data->dev_id,
                                cryptodev->data->socket_id,
                                cryptodev->data->dev_started);

                /* init user callbacks */
                TAILQ_INIT(&(cryptodev->link_intr_cbs));

                cryptodev->attached = RTE_CRYPTODEV_ATTACHED;

                cryptodev_globals.nb_devs++;
        }

        return cryptodev;
}

int
rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
{
        int ret;
        uint8_t dev_id;

        if (cryptodev == NULL)
                return -EINVAL;

        dev_id = cryptodev->data->dev_id;

        cryptodev_fp_ops_reset(rte_crypto_fp_ops + dev_id);

        /* Close device only if device operations have been set */
        if (cryptodev->dev_ops) {
                ret = rte_cryptodev_close(dev_id);
                if (ret < 0)
                        return ret;
        }

        ret = rte_cryptodev_data_free(dev_id, &cryptodev_globals.data[dev_id]);
        if (ret < 0)
                return ret;

        cryptodev->attached = RTE_CRYPTODEV_DETACHED;
        cryptodev_globals.nb_devs--;
        return 0;
}

uint16_t
rte_cryptodev_queue_pair_count(uint8_t dev_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_device_data(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return 0;
        }

        dev = &rte_crypto_devices[dev_id];
        return dev->data->nb_queue_pairs;
}

static int
rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
                int socket_id)
{
        struct rte_cryptodev_info dev_info;
        void **qp;
        unsigned i;

        if ((dev == NULL) || (nb_qpairs < 1)) {
                CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
                                                        dev, nb_qpairs);
                return -EINVAL;
        }

        CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
                        nb_qpairs, dev->data->dev_id);

        memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
        (*dev->dev_ops->dev_infos_get)(dev, &dev_info);

        if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
                CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
                                nb_qpairs, dev->data->dev_id);
            return -EINVAL;
        }

        if (dev->data->queue_pairs == NULL) { /* first time configuration */
                dev->data->queue_pairs = rte_zmalloc_socket(
                                "cryptodev->queue_pairs",
                                sizeof(dev->data->queue_pairs[0]) *
                                dev_info.max_nb_queue_pairs,
                                RTE_CACHE_LINE_SIZE, socket_id);

                if (dev->data->queue_pairs == NULL) {
                        dev->data->nb_queue_pairs = 0;
                        CDEV_LOG_ERR("failed to get memory for qp meta data, "
                                                        "nb_queues %u",

                                                        nb_qpairs);
                        return -(ENOMEM);
                }
        } else { /* re-configure */
                int ret;
                uint16_t old_nb_queues = dev->data->nb_queue_pairs;

                qp = dev->data->queue_pairs;

                RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
                                -ENOTSUP);

                for (i = nb_qpairs; i < old_nb_queues; i++) {
                        ret = (*dev->dev_ops->queue_pair_release)(dev, i);
                        if (ret < 0)
                                return ret;
                        qp[i] = NULL;
                }

        }
        dev->data->nb_queue_pairs = nb_qpairs;
        return 0;
}

int
rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
{
        struct rte_cryptodev *dev;
        int diag;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];

        if (dev->data->dev_started) {
                CDEV_LOG_ERR(
                    "device %d must be stopped to allow configuration", dev_id);
                return -EBUSY;
        }

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);

        rte_spinlock_lock(&rte_cryptodev_callback_lock);
        cryptodev_cb_cleanup(dev);
        rte_spinlock_unlock(&rte_cryptodev_callback_lock);

        /* Setup new number of queue pairs and reconfigure device. */
        diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
                        config->socket_id);
        if (diag != 0) {
                CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
                                dev_id, diag);
                return diag;
        }

        rte_spinlock_lock(&rte_cryptodev_callback_lock);
        diag = cryptodev_cb_init(dev);
        rte_spinlock_unlock(&rte_cryptodev_callback_lock);
        if (diag) {
                CDEV_LOG_ERR("Callback init failed for dev_id=%d", dev_id);
                return diag;
        }

        rte_cryptodev_trace_configure(dev_id, config);
        return (*dev->dev_ops->dev_configure)(dev, config);
}

int
rte_cryptodev_start(uint8_t dev_id)
{
        struct rte_cryptodev *dev;
        int diag;

        CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);

        if (dev->data->dev_started != 0) {
                CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
                        dev_id);
                return 0;
        }

        diag = (*dev->dev_ops->dev_start)(dev);
        /* expose selection of PMD fast-path functions */
        cryptodev_fp_ops_set(rte_crypto_fp_ops + dev_id, dev);

        rte_cryptodev_trace_start(dev_id, diag);
        if (diag == 0)
                dev->data->dev_started = 1;
        else
                return diag;

        return 0;
}

void
rte_cryptodev_stop(uint8_t dev_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return;
        }

        dev = &rte_crypto_devices[dev_id];

        RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);

        if (dev->data->dev_started == 0) {
                CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
                        dev_id);
                return;
        }

        /* point fast-path functions to dummy ones */
        cryptodev_fp_ops_reset(rte_crypto_fp_ops + dev_id);

        (*dev->dev_ops->dev_stop)(dev);
        rte_cryptodev_trace_stop(dev_id);
        dev->data->dev_started = 0;
}

int
rte_cryptodev_close(uint8_t dev_id)
{
        struct rte_cryptodev *dev;
        int retval;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -1;
        }

        dev = &rte_crypto_devices[dev_id];

        /* Device must be stopped before it can be closed */
        if (dev->data->dev_started == 1) {
                CDEV_LOG_ERR("Device %u must be stopped before closing",
                                dev_id);
                return -EBUSY;
        }

        /* We can't close the device if there are outstanding sessions in use */
        if (dev->data->session_pool != NULL) {
                if (!rte_mempool_full(dev->data->session_pool)) {
                        CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
                                        "has sessions still in use, free "
                                        "all sessions before calling close",
                                        (unsigned)dev_id);
                        return -EBUSY;
                }
        }

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
        retval = (*dev->dev_ops->dev_close)(dev);
        rte_cryptodev_trace_close(dev_id, retval);

        if (retval < 0)
                return retval;

        return 0;
}

int
rte_cryptodev_get_qp_status(uint8_t dev_id, uint16_t queue_pair_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];
        if (queue_pair_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
                return -EINVAL;
        }
        void **qps = dev->data->queue_pairs;

        if (qps[queue_pair_id]) {
                CDEV_LOG_DEBUG("qp %d on dev %d is initialised",
                        queue_pair_id, dev_id);
                return 1;
        }

        CDEV_LOG_DEBUG("qp %d on dev %d is not initialised",
                queue_pair_id, dev_id);

        return 0;
}

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)

{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];
        if (queue_pair_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
                return -EINVAL;
        }

        if (!qp_conf) {
                CDEV_LOG_ERR("qp_conf cannot be NULL\n");
                return -EINVAL;
        }

        if ((qp_conf->mp_session && !qp_conf->mp_session_private) ||
                        (!qp_conf->mp_session && qp_conf->mp_session_private)) {
                CDEV_LOG_ERR("Invalid mempools\n");
                return -EINVAL;
        }

        if (qp_conf->mp_session) {
                struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
                uint32_t obj_size = qp_conf->mp_session->elt_size;
                uint32_t obj_priv_size = qp_conf->mp_session_private->elt_size;
                struct rte_cryptodev_sym_session s = {0};

                pool_priv = rte_mempool_get_priv(qp_conf->mp_session);
                if (!pool_priv || qp_conf->mp_session->private_data_size <
                                sizeof(*pool_priv)) {
                        CDEV_LOG_ERR("Invalid mempool\n");
                        return -EINVAL;
                }

                s.nb_drivers = pool_priv->nb_drivers;
                s.user_data_sz = pool_priv->user_data_sz;

                if ((rte_cryptodev_sym_get_existing_header_session_size(&s) >
                        obj_size) || (s.nb_drivers <= dev->driver_id) ||
                        rte_cryptodev_sym_get_private_session_size(dev_id) >
                                obj_priv_size) {
                        CDEV_LOG_ERR("Invalid mempool\n");
                        return -EINVAL;
                }
        }

        if (dev->data->dev_started) {
                CDEV_LOG_ERR(
                    "device %d must be stopped to allow configuration", dev_id);
                return -EBUSY;
        }

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);

        rte_cryptodev_trace_queue_pair_setup(dev_id, queue_pair_id, qp_conf);
        return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
                        socket_id);
}

struct rte_cryptodev_cb *
rte_cryptodev_add_enq_callback(uint8_t dev_id,
                               uint16_t qp_id,
                               rte_cryptodev_callback_fn cb_fn,
                               void *cb_arg)
{
        struct rte_cryptodev *dev;
        struct rte_cryptodev_cb_rcu *list;
        struct rte_cryptodev_cb *cb, *tail;

        if (!cb_fn) {
                CDEV_LOG_ERR("Callback is NULL on dev_id=%d", dev_id);
                rte_errno = EINVAL;
                return NULL;
        }

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                rte_errno = ENODEV;
                return NULL;
        }

        dev = &rte_crypto_devices[dev_id];
        if (qp_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", qp_id);
                rte_errno = ENODEV;
                return NULL;
        }

        cb = rte_zmalloc(NULL, sizeof(*cb), 0);
        if (cb == NULL) {
                CDEV_LOG_ERR("Failed to allocate memory for callback on "
                             "dev=%d, queue_pair_id=%d", dev_id, qp_id);
                rte_errno = ENOMEM;
                return NULL;
        }

        rte_spinlock_lock(&rte_cryptodev_callback_lock);

        cb->fn = cb_fn;
        cb->arg = cb_arg;

        /* Add the callbacks in fifo order. */
        list = &dev->enq_cbs[qp_id];
        tail = list->next;

        if (tail) {
                while (tail->next)
                        tail = tail->next;
                /* Stores to cb->fn and cb->param should complete before
                 * cb is visible to data plane.
                 */
                __atomic_store_n(&tail->next, cb, __ATOMIC_RELEASE);
        } else {
                /* Stores to cb->fn and cb->param should complete before
                 * cb is visible to data plane.
                 */
                __atomic_store_n(&list->next, cb, __ATOMIC_RELEASE);
        }

        rte_spinlock_unlock(&rte_cryptodev_callback_lock);

        return cb;
}

int
rte_cryptodev_remove_enq_callback(uint8_t dev_id,
                                  uint16_t qp_id,
                                  struct rte_cryptodev_cb *cb)
{
        struct rte_cryptodev *dev;
        struct rte_cryptodev_cb **prev_cb, *curr_cb;
        struct rte_cryptodev_cb_rcu *list;
        int ret;

        ret = -EINVAL;

        if (!cb) {
                CDEV_LOG_ERR("Callback is NULL");
                return -EINVAL;
        }

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                return -ENODEV;
        }

        dev = &rte_crypto_devices[dev_id];
        if (qp_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", qp_id);
                return -ENODEV;
        }

        rte_spinlock_lock(&rte_cryptodev_callback_lock);
        if (dev->enq_cbs == NULL) {
                CDEV_LOG_ERR("Callback not initialized");
                goto cb_err;
        }

        list = &dev->enq_cbs[qp_id];
        if (list == NULL) {
                CDEV_LOG_ERR("Callback list is NULL");
                goto cb_err;
        }

        if (list->qsbr == NULL) {
                CDEV_LOG_ERR("Rcu qsbr is NULL");
                goto cb_err;
        }

        prev_cb = &list->next;
        for (; *prev_cb != NULL; prev_cb = &curr_cb->next) {
                curr_cb = *prev_cb;
                if (curr_cb == cb) {
                        /* Remove the user cb from the callback list. */
                        __atomic_store_n(prev_cb, curr_cb->next,
                                __ATOMIC_RELAXED);
                        ret = 0;
                        break;
                }
        }

        if (!ret) {
                /* Call sync with invalid thread id as this is part of
                 * control plane API
                 */
                rte_rcu_qsbr_synchronize(list->qsbr, RTE_QSBR_THRID_INVALID);
                rte_free(cb);
        }

cb_err:
        rte_spinlock_unlock(&rte_cryptodev_callback_lock);
        return ret;
}

struct rte_cryptodev_cb *
rte_cryptodev_add_deq_callback(uint8_t dev_id,
                               uint16_t qp_id,
                               rte_cryptodev_callback_fn cb_fn,
                               void *cb_arg)
{
        struct rte_cryptodev *dev;
        struct rte_cryptodev_cb_rcu *list;
        struct rte_cryptodev_cb *cb, *tail;

        if (!cb_fn) {
                CDEV_LOG_ERR("Callback is NULL on dev_id=%d", dev_id);
                rte_errno = EINVAL;
                return NULL;
        }

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                rte_errno = ENODEV;
                return NULL;
        }

        dev = &rte_crypto_devices[dev_id];
        if (qp_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", qp_id);
                rte_errno = ENODEV;
                return NULL;
        }

        cb = rte_zmalloc(NULL, sizeof(*cb), 0);
        if (cb == NULL) {
                CDEV_LOG_ERR("Failed to allocate memory for callback on "
                             "dev=%d, queue_pair_id=%d", dev_id, qp_id);
                rte_errno = ENOMEM;
                return NULL;
        }

        rte_spinlock_lock(&rte_cryptodev_callback_lock);

        cb->fn = cb_fn;
        cb->arg = cb_arg;

        /* Add the callbacks in fifo order. */
        list = &dev->deq_cbs[qp_id];
        tail = list->next;

        if (tail) {
                while (tail->next)
                        tail = tail->next;
                /* Stores to cb->fn and cb->param should complete before
                 * cb is visible to data plane.
                 */
                __atomic_store_n(&tail->next, cb, __ATOMIC_RELEASE);
        } else {
                /* Stores to cb->fn and cb->param should complete before
                 * cb is visible to data plane.
                 */
                __atomic_store_n(&list->next, cb, __ATOMIC_RELEASE);
        }

        rte_spinlock_unlock(&rte_cryptodev_callback_lock);

        return cb;
}

int
rte_cryptodev_remove_deq_callback(uint8_t dev_id,
                                  uint16_t qp_id,
                                  struct rte_cryptodev_cb *cb)
{
        struct rte_cryptodev *dev;
        struct rte_cryptodev_cb **prev_cb, *curr_cb;
        struct rte_cryptodev_cb_rcu *list;
        int ret;

        ret = -EINVAL;

        if (!cb) {
                CDEV_LOG_ERR("Callback is NULL");
                return -EINVAL;
        }

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                return -ENODEV;
        }

        dev = &rte_crypto_devices[dev_id];
        if (qp_id >= dev->data->nb_queue_pairs) {
                CDEV_LOG_ERR("Invalid queue_pair_id=%d", qp_id);
                return -ENODEV;
        }

        rte_spinlock_lock(&rte_cryptodev_callback_lock);
        if (dev->enq_cbs == NULL) {
                CDEV_LOG_ERR("Callback not initialized");
                goto cb_err;
        }

        list = &dev->deq_cbs[qp_id];
        if (list == NULL) {
                CDEV_LOG_ERR("Callback list is NULL");
                goto cb_err;
        }

        if (list->qsbr == NULL) {
                CDEV_LOG_ERR("Rcu qsbr is NULL");
                goto cb_err;
        }

        prev_cb = &list->next;
        for (; *prev_cb != NULL; prev_cb = &curr_cb->next) {
                curr_cb = *prev_cb;
                if (curr_cb == cb) {
                        /* Remove the user cb from the callback list. */
                        __atomic_store_n(prev_cb, curr_cb->next,
                                __ATOMIC_RELAXED);
                        ret = 0;
                        break;
                }
        }

        if (!ret) {
                /* Call sync with invalid thread id as this is part of
                 * control plane API
                 */
                rte_rcu_qsbr_synchronize(list->qsbr, RTE_QSBR_THRID_INVALID);
                rte_free(cb);
        }

cb_err:
        rte_spinlock_unlock(&rte_cryptodev_callback_lock);
        return ret;
}

int
rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                return -ENODEV;
        }

        if (stats == NULL) {
                CDEV_LOG_ERR("Invalid stats ptr");
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];
        memset(stats, 0, sizeof(*stats));

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
        (*dev->dev_ops->stats_get)(dev, stats);
        return 0;
}

void
rte_cryptodev_stats_reset(uint8_t dev_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return;
        }

        dev = &rte_crypto_devices[dev_id];

        RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
        (*dev->dev_ops->stats_reset)(dev);
}

void
rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                return;
        }

        dev = &rte_crypto_devices[dev_id];

        memset(dev_info, 0, sizeof(struct rte_cryptodev_info));

        RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
        (*dev->dev_ops->dev_infos_get)(dev, dev_info);

        dev_info->driver_name = dev->device->driver->name;
        dev_info->device = dev->device;
}

int
rte_cryptodev_callback_register(uint8_t dev_id,
                        enum rte_cryptodev_event_type event,
                        rte_cryptodev_cb_fn cb_fn, void *cb_arg)
{
        struct rte_cryptodev *dev;
        struct rte_cryptodev_callback *user_cb;

        if (!cb_fn)
                return -EINVAL;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];
        rte_spinlock_lock(&rte_cryptodev_cb_lock);

        TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
                if (user_cb->cb_fn == cb_fn &&
                        user_cb->cb_arg == cb_arg &&
                        user_cb->event == event) {
                        break;
                }
        }

        /* create a new callback. */
        if (user_cb == NULL) {
                user_cb = rte_zmalloc("INTR_USER_CALLBACK",
                                sizeof(struct rte_cryptodev_callback), 0);
                if (user_cb != NULL) {
                        user_cb->cb_fn = cb_fn;
                        user_cb->cb_arg = cb_arg;
                        user_cb->event = event;
                        TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
                }
        }

        rte_spinlock_unlock(&rte_cryptodev_cb_lock);
        return (user_cb == NULL) ? -ENOMEM : 0;
}

int
rte_cryptodev_callback_unregister(uint8_t dev_id,
                        enum rte_cryptodev_event_type event,
                        rte_cryptodev_cb_fn cb_fn, void *cb_arg)
{
        int ret;
        struct rte_cryptodev *dev;
        struct rte_cryptodev_callback *cb, *next;

        if (!cb_fn)
                return -EINVAL;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = &rte_crypto_devices[dev_id];
        rte_spinlock_lock(&rte_cryptodev_cb_lock);

        ret = 0;
        for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {

                next = TAILQ_NEXT(cb, next);

                if (cb->cb_fn != cb_fn || cb->event != event ||
                                (cb->cb_arg != (void *)-1 &&
                                cb->cb_arg != cb_arg))
                        continue;

                /*
                 * if this callback is not executing right now,
                 * then remove it.
                 */
                if (cb->active == 0) {
                        TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
                        rte_free(cb);
                } else {
                        ret = -EAGAIN;
                }
        }

        rte_spinlock_unlock(&rte_cryptodev_cb_lock);
        return ret;
}

void
rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
        enum rte_cryptodev_event_type event)
{
        struct rte_cryptodev_callback *cb_lst;
        struct rte_cryptodev_callback dev_cb;

        rte_spinlock_lock(&rte_cryptodev_cb_lock);
        TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
                if (cb_lst->cb_fn == NULL || cb_lst->event != event)
                        continue;
                dev_cb = *cb_lst;
                cb_lst->active = 1;
                rte_spinlock_unlock(&rte_cryptodev_cb_lock);
                dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
                                                dev_cb.cb_arg);
                rte_spinlock_lock(&rte_cryptodev_cb_lock);
                cb_lst->active = 0;
        }
        rte_spinlock_unlock(&rte_cryptodev_cb_lock);
}

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 *mp)
{
        struct rte_cryptodev *dev;
        uint32_t sess_priv_sz = rte_cryptodev_sym_get_private_session_size(
                        dev_id);
        uint8_t index;
        int ret;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (sess == NULL || xforms == NULL || dev == NULL || mp == NULL)
                return -EINVAL;

        if (mp->elt_size < sess_priv_sz)
                return -EINVAL;

        index = dev->driver_id;
        if (index >= sess->nb_drivers)
                return -EINVAL;

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);

        if (sess->sess_data[index].refcnt == 0) {
                ret = dev->dev_ops->sym_session_configure(dev, xforms,
                                                        sess, mp);
                if (ret < 0) {
                        CDEV_LOG_ERR(
                                "dev_id %d failed to configure session details",
                                dev_id);
                        return ret;
                }
        }

        rte_cryptodev_trace_sym_session_init(dev_id, sess, xforms, mp);
        sess->sess_data[index].refcnt++;
        return 0;
}

struct rte_mempool *
rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
        uint32_t elt_size, uint32_t cache_size, uint16_t user_data_size,
        int socket_id)
{
        struct rte_mempool *mp;
        struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
        uint32_t obj_sz;

        obj_sz = rte_cryptodev_sym_get_header_session_size() + user_data_size;
        if (obj_sz > elt_size)
                CDEV_LOG_INFO("elt_size %u is expanded to %u\n", elt_size,
                                obj_sz);
        else
                obj_sz = elt_size;

        mp = rte_mempool_create(name, nb_elts, obj_sz, cache_size,
                        (uint32_t)(sizeof(*pool_priv)),
                        NULL, NULL, NULL, NULL,
                        socket_id, 0);
        if (mp == NULL) {
                CDEV_LOG_ERR("%s(name=%s) failed, rte_errno=%d\n",
                        __func__, name, rte_errno);
                return NULL;
        }

        pool_priv = rte_mempool_get_priv(mp);
        if (!pool_priv) {
                CDEV_LOG_ERR("%s(name=%s) failed to get private data\n",
                        __func__, name);
                rte_mempool_free(mp);
                return NULL;
        }

        pool_priv->nb_drivers = nb_drivers;
        pool_priv->user_data_sz = user_data_size;

        rte_cryptodev_trace_sym_session_pool_create(name, nb_elts,
                elt_size, cache_size, user_data_size, mp);
        return mp;
}

struct rte_mempool *
rte_cryptodev_asym_session_pool_create(const char *name, uint32_t nb_elts,
        uint32_t cache_size, uint16_t user_data_size, int socket_id)
{
        struct rte_mempool *mp;
        struct rte_cryptodev_asym_session_pool_private_data *pool_priv;
        uint32_t obj_sz, obj_sz_aligned;
        uint8_t dev_id;
        unsigned int priv_sz, max_priv_sz = 0;

        for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++)
                if (rte_cryptodev_is_valid_dev(dev_id)) {
                        priv_sz = rte_cryptodev_asym_get_private_session_size(dev_id);
                        if (priv_sz > max_priv_sz)
                                max_priv_sz = priv_sz;
                }
        if (max_priv_sz == 0) {
                CDEV_LOG_INFO("Could not set max private session size\n");
                return NULL;
        }

        obj_sz = rte_cryptodev_asym_get_header_session_size() + max_priv_sz +
                        user_data_size;
        obj_sz_aligned =  RTE_ALIGN_CEIL(obj_sz, RTE_CACHE_LINE_SIZE);

        mp = rte_mempool_create(name, nb_elts, obj_sz_aligned, cache_size,
                        (uint32_t)(sizeof(*pool_priv)),
                        NULL, NULL, NULL, NULL,
                        socket_id, 0);
        if (mp == NULL) {
                CDEV_LOG_ERR("%s(name=%s) failed, rte_errno=%d\n",
                        __func__, name, rte_errno);
                return NULL;
        }

        pool_priv = rte_mempool_get_priv(mp);
        if (!pool_priv) {
                CDEV_LOG_ERR("%s(name=%s) failed to get private data\n",
                        __func__, name);
                rte_mempool_free(mp);
                return NULL;
        }
        pool_priv->max_priv_session_sz = max_priv_sz;
        pool_priv->user_data_sz = user_data_size;

        rte_cryptodev_trace_asym_session_pool_create(name, nb_elts,
                user_data_size, cache_size, mp);
        return mp;
}

static unsigned int
rte_cryptodev_sym_session_data_size(struct rte_cryptodev_sym_session *sess)
{
        return (sizeof(sess->sess_data[0]) * sess->nb_drivers) +
                        sess->user_data_sz;
}

static uint8_t
rte_cryptodev_sym_is_valid_session_pool(struct rte_mempool *mp)
{
        struct rte_cryptodev_sym_session_pool_private_data *pool_priv;

        if (!mp)
                return 0;

        pool_priv = rte_mempool_get_priv(mp);

        if (!pool_priv || mp->private_data_size < sizeof(*pool_priv) ||
                        pool_priv->nb_drivers != nb_drivers ||
                        mp->elt_size <
                                rte_cryptodev_sym_get_header_session_size()
                                + pool_priv->user_data_sz)
                return 0;

        return 1;
}

struct rte_cryptodev_sym_session *
rte_cryptodev_sym_session_create(struct rte_mempool *mp)
{
        struct rte_cryptodev_sym_session *sess;
        struct rte_cryptodev_sym_session_pool_private_data *pool_priv;

        if (!rte_cryptodev_sym_is_valid_session_pool(mp)) {
                CDEV_LOG_ERR("Invalid mempool\n");
                return NULL;
        }

        pool_priv = rte_mempool_get_priv(mp);

        /* Allocate a session structure from the session pool */
        if (rte_mempool_get(mp, (void **)&sess)) {
                CDEV_LOG_ERR("couldn't get object from session mempool");
                return NULL;
        }

        sess->nb_drivers = pool_priv->nb_drivers;
        sess->user_data_sz = pool_priv->user_data_sz;
        sess->opaque_data = 0;

        /* Clear device session pointer.
         * Include the flag indicating presence of user data
         */
        memset(sess->sess_data, 0,
                        rte_cryptodev_sym_session_data_size(sess));

        rte_cryptodev_trace_sym_session_create(mp, sess);
        return sess;
}

int
rte_cryptodev_asym_session_create(uint8_t dev_id,
                struct rte_crypto_asym_xform *xforms, struct rte_mempool *mp,
                void **session)
{
        struct rte_cryptodev_asym_session *sess;
        uint32_t session_priv_data_sz;
        struct rte_cryptodev_asym_session_pool_private_data *pool_priv;
        unsigned int session_header_size =
                        rte_cryptodev_asym_get_header_session_size();
        struct rte_cryptodev *dev;
        int ret;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (dev == NULL)
                return -EINVAL;

        if (!mp) {
                CDEV_LOG_ERR("invalid mempool\n");
                return -EINVAL;
        }

        session_priv_data_sz = rte_cryptodev_asym_get_private_session_size(
                        dev_id);
        pool_priv = rte_mempool_get_priv(mp);

        if (pool_priv->max_priv_session_sz < session_priv_data_sz) {
                CDEV_LOG_DEBUG(
                        "The private session data size used when creating the mempool is smaller than this device's private session data.");
                return -EINVAL;
        }

        /* Verify if provided mempool can hold elements big enough. */
        if (mp->elt_size < session_header_size + session_priv_data_sz) {
                CDEV_LOG_ERR(
                        "mempool elements too small to hold session objects");
                return -EINVAL;
        }

        /* Allocate a session structure from the session pool */
        if (rte_mempool_get(mp, session)) {
                CDEV_LOG_ERR("couldn't get object from session mempool");
                return -ENOMEM;
        }

        sess = *session;
        sess->driver_id = dev->driver_id;
        sess->user_data_sz = pool_priv->user_data_sz;
        sess->max_priv_data_sz = pool_priv->max_priv_session_sz;

        /* Clear device session pointer.*/
        memset(sess->sess_private_data, 0, session_priv_data_sz + sess->user_data_sz);

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_configure, -ENOTSUP);

        if (sess->sess_private_data[0] == 0) {
                ret = dev->dev_ops->asym_session_configure(dev, xforms, sess);
                if (ret < 0) {
                        CDEV_LOG_ERR(
                                "dev_id %d failed to configure session details",
                                dev_id);
                        return ret;
                }
        }

        rte_cryptodev_trace_asym_session_create(dev_id, xforms, mp, sess);
        return 0;
}

int
rte_cryptodev_sym_session_clear(uint8_t dev_id,
                struct rte_cryptodev_sym_session *sess)
{
        struct rte_cryptodev *dev;
        uint8_t driver_id;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (dev == NULL || sess == NULL)
                return -EINVAL;

        driver_id = dev->driver_id;
        if (sess->sess_data[driver_id].refcnt == 0)
                return 0;
        if (--sess->sess_data[driver_id].refcnt != 0)
                return -EBUSY;

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);

        dev->dev_ops->sym_session_clear(dev, sess);

        rte_cryptodev_trace_sym_session_clear(dev_id, sess);
        return 0;
}

int
rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
{
        uint8_t i;
        struct rte_mempool *sess_mp;

        if (sess == NULL)
                return -EINVAL;

        /* Check that all device private data has been freed */
        for (i = 0; i < sess->nb_drivers; i++) {
                if (sess->sess_data[i].refcnt != 0)
                        return -EBUSY;
        }

        /* Return session to mempool */
        sess_mp = rte_mempool_from_obj(sess);
        rte_mempool_put(sess_mp, sess);

        rte_cryptodev_trace_sym_session_free(sess);
        return 0;
}

int
rte_cryptodev_asym_session_free(uint8_t dev_id, void *sess)
{
        struct rte_mempool *sess_mp;
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return -EINVAL;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (dev == NULL || sess == NULL)
                return -EINVAL;

        RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_clear, -ENOTSUP);

        dev->dev_ops->asym_session_clear(dev, sess);

        rte_free(((struct rte_cryptodev_asym_session *)sess)->event_mdata);

        /* Return session to mempool */
        sess_mp = rte_mempool_from_obj(sess);
        rte_mempool_put(sess_mp, sess);

        rte_cryptodev_trace_asym_session_free(dev_id, sess);
        return 0;
}

unsigned int
rte_cryptodev_sym_get_header_session_size(void)
{
        /*
         * Header contains pointers to the private data of all registered
         * drivers and all necessary information to ensure safely clear
         * or free al session.
         */
        struct rte_cryptodev_sym_session s = {0};

        s.nb_drivers = nb_drivers;

        return (unsigned int)(sizeof(s) +
                        rte_cryptodev_sym_session_data_size(&s));
}

unsigned int
rte_cryptodev_sym_get_existing_header_session_size(
                struct rte_cryptodev_sym_session *sess)
{
        if (!sess)
                return 0;
        else
                return (unsigned int)(sizeof(*sess) +
                                rte_cryptodev_sym_session_data_size(sess));
}

unsigned int
rte_cryptodev_asym_get_header_session_size(void)
{
        return sizeof(struct rte_cryptodev_asym_session);
}

unsigned int
rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
{
        struct rte_cryptodev *dev;
        unsigned int priv_sess_size;

        if (!rte_cryptodev_is_valid_dev(dev_id))
                return 0;

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (*dev->dev_ops->sym_session_get_size == NULL)
                return 0;

        priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);

        return priv_sess_size;
}

unsigned int
rte_cryptodev_asym_get_private_session_size(uint8_t dev_id)
{
        struct rte_cryptodev *dev;
        unsigned int priv_sess_size;

        if (!rte_cryptodev_is_valid_dev(dev_id))
                return 0;

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (*dev->dev_ops->asym_session_get_size == NULL)
                return 0;

        priv_sess_size = (*dev->dev_ops->asym_session_get_size)(dev);

        return priv_sess_size;
}

int
rte_cryptodev_sym_session_set_user_data(
                                        struct rte_cryptodev_sym_session *sess,
                                        void *data,
                                        uint16_t size)
{
        if (sess == NULL)
                return -EINVAL;

        if (sess->user_data_sz < size)
                return -ENOMEM;

        rte_memcpy(sess->sess_data + sess->nb_drivers, data, size);
        return 0;
}

void *
rte_cryptodev_sym_session_get_user_data(
                                        struct rte_cryptodev_sym_session *sess)
{
        if (sess == NULL || sess->user_data_sz == 0)
                return NULL;

        return (void *)(sess->sess_data + sess->nb_drivers);
}

int
rte_cryptodev_asym_session_set_user_data(void *session, void *data, uint16_t size)
{
        struct rte_cryptodev_asym_session *sess = session;
        if (sess == NULL)
                return -EINVAL;

        if (sess->user_data_sz < size)
                return -ENOMEM;

        rte_memcpy(sess->sess_private_data +
                        sess->max_priv_data_sz,
                        data, size);
        return 0;
}

void *
rte_cryptodev_asym_session_get_user_data(void *session)
{
        struct rte_cryptodev_asym_session *sess = session;
        if (sess == NULL || sess->user_data_sz == 0)
                return NULL;

        return (void *)(sess->sess_private_data +
                        sess->max_priv_data_sz);
}

static inline void
sym_crypto_fill_status(struct rte_crypto_sym_vec *vec, int32_t errnum)
{
        uint32_t i;
        for (i = 0; i < vec->num; i++)
                vec->status[i] = errnum;
}

uint32_t
rte_cryptodev_sym_cpu_crypto_process(uint8_t dev_id,
        struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs ofs,
        struct rte_crypto_sym_vec *vec)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_dev(dev_id)) {
                sym_crypto_fill_status(vec, EINVAL);
                return 0;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (*dev->dev_ops->sym_cpu_process == NULL ||
                !(dev->feature_flags & RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO)) {
                sym_crypto_fill_status(vec, ENOTSUP);
                return 0;
        }

        return dev->dev_ops->sym_cpu_process(dev, sess, ofs, vec);
}

int
rte_cryptodev_get_raw_dp_ctx_size(uint8_t dev_id)
{
        struct rte_cryptodev *dev;
        int32_t size = sizeof(struct rte_crypto_raw_dp_ctx);
        int32_t priv_size;

        if (!rte_cryptodev_is_valid_dev(dev_id))
                return -EINVAL;

        dev = rte_cryptodev_pmd_get_dev(dev_id);

        if (*dev->dev_ops->sym_get_raw_dp_ctx_size == NULL ||
                !(dev->feature_flags & RTE_CRYPTODEV_FF_SYM_RAW_DP)) {
                return -ENOTSUP;
        }

        priv_size = (*dev->dev_ops->sym_get_raw_dp_ctx_size)(dev);
        if (priv_size < 0)
                return -ENOTSUP;

        return RTE_ALIGN_CEIL((size + priv_size), 8);
}

int
rte_cryptodev_configure_raw_dp_ctx(uint8_t dev_id, uint16_t qp_id,
        struct rte_crypto_raw_dp_ctx *ctx,
        enum rte_crypto_op_sess_type sess_type,
        union rte_cryptodev_session_ctx session_ctx,
        uint8_t is_update)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_get_qp_status(dev_id, qp_id))
                return -EINVAL;

        dev = rte_cryptodev_pmd_get_dev(dev_id);
        if (!(dev->feature_flags & RTE_CRYPTODEV_FF_SYM_RAW_DP)
                        || dev->dev_ops->sym_configure_raw_dp_ctx == NULL)
                return -ENOTSUP;

        return (*dev->dev_ops->sym_configure_raw_dp_ctx)(dev, qp_id, ctx,
                        sess_type, session_ctx, is_update);
}

int
rte_cryptodev_session_event_mdata_set(uint8_t dev_id, void *sess,
        enum rte_crypto_op_type op_type,
        enum rte_crypto_op_sess_type sess_type,
        void *ev_mdata,
        uint16_t size)
{
        struct rte_cryptodev *dev;

        if (sess == NULL || ev_mdata == NULL)
                return -EINVAL;

        if (!rte_cryptodev_is_valid_dev(dev_id))
                goto skip_pmd_op;

        dev = rte_cryptodev_pmd_get_dev(dev_id);
        if (dev->dev_ops->session_ev_mdata_set == NULL)
                goto skip_pmd_op;

        return (*dev->dev_ops->session_ev_mdata_set)(dev, sess, op_type,
                        sess_type, ev_mdata);

skip_pmd_op:
        if (op_type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)
                return rte_cryptodev_sym_session_set_user_data(sess, ev_mdata,
                                size);
        else if (op_type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
                struct rte_cryptodev_asym_session *s = sess;

                if (s->event_mdata == NULL) {
                        s->event_mdata = rte_malloc(NULL, size, 0);
                        if (s->event_mdata == NULL)
                                return -ENOMEM;
                }
                rte_memcpy(s->event_mdata, ev_mdata, size);

                return 0;
        } else
                return -ENOTSUP;
}

uint32_t
rte_cryptodev_raw_enqueue_burst(struct rte_crypto_raw_dp_ctx *ctx,
        struct rte_crypto_sym_vec *vec, union rte_crypto_sym_ofs ofs,
        void **user_data, int *enqueue_status)
{
        return (*ctx->enqueue_burst)(ctx->qp_data, ctx->drv_ctx_data, vec,
                        ofs, user_data, enqueue_status);
}

int
rte_cryptodev_raw_enqueue_done(struct rte_crypto_raw_dp_ctx *ctx,
                uint32_t n)
{
        return (*ctx->enqueue_done)(ctx->qp_data, ctx->drv_ctx_data, n);
}

uint32_t
rte_cryptodev_raw_dequeue_burst(struct rte_crypto_raw_dp_ctx *ctx,
        rte_cryptodev_raw_get_dequeue_count_t get_dequeue_count,
        uint32_t max_nb_to_dequeue,
        rte_cryptodev_raw_post_dequeue_t post_dequeue,
        void **out_user_data, uint8_t is_user_data_array,
        uint32_t *n_success_jobs, int *status)
{
        return (*ctx->dequeue_burst)(ctx->qp_data, ctx->drv_ctx_data,
                get_dequeue_count, max_nb_to_dequeue, post_dequeue,
                out_user_data, is_user_data_array, n_success_jobs, status);
}

int
rte_cryptodev_raw_dequeue_done(struct rte_crypto_raw_dp_ctx *ctx,
                uint32_t n)
{
        return (*ctx->dequeue_done)(ctx->qp_data, ctx->drv_ctx_data, n);
}

/** Initialise rte_crypto_op mempool element */
static void
rte_crypto_op_init(struct rte_mempool *mempool,
                void *opaque_arg,
                void *_op_data,
                __rte_unused unsigned i)
{
        struct rte_crypto_op *op = _op_data;
        enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;

        memset(_op_data, 0, mempool->elt_size);

        __rte_crypto_op_reset(op, type);

        op->phys_addr = rte_mem_virt2iova(_op_data);
        op->mempool = mempool;
}


struct rte_mempool *
rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
                unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
                int socket_id)
{
        struct rte_crypto_op_pool_private *priv;

        unsigned elt_size = sizeof(struct rte_crypto_op) +
                        priv_size;

        if (type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
                elt_size += sizeof(struct rte_crypto_sym_op);
        } else if (type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
                elt_size += sizeof(struct rte_crypto_asym_op);
        } else if (type == RTE_CRYPTO_OP_TYPE_UNDEFINED) {
                elt_size += RTE_MAX(sizeof(struct rte_crypto_sym_op),
                                    sizeof(struct rte_crypto_asym_op));
        } else {
                CDEV_LOG_ERR("Invalid op_type\n");
                return NULL;
        }

        /* lookup mempool in case already allocated */
        struct rte_mempool *mp = rte_mempool_lookup(name);

        if (mp != NULL) {
                priv = (struct rte_crypto_op_pool_private *)
                                rte_mempool_get_priv(mp);

                if (mp->elt_size != elt_size ||
                                mp->cache_size < cache_size ||
                                mp->size < nb_elts ||
                                priv->priv_size <  priv_size) {
                        mp = NULL;
                        CDEV_LOG_ERR("Mempool %s already exists but with "
                                        "incompatible parameters", name);
                        return NULL;
                }
                return mp;
        }

        mp = rte_mempool_create(
                        name,
                        nb_elts,
                        elt_size,
                        cache_size,
                        sizeof(struct rte_crypto_op_pool_private),
                        NULL,
                        NULL,
                        rte_crypto_op_init,
                        &type,
                        socket_id,
                        0);

        if (mp == NULL) {
                CDEV_LOG_ERR("Failed to create mempool %s", name);
                return NULL;
        }

        priv = (struct rte_crypto_op_pool_private *)
                        rte_mempool_get_priv(mp);

        priv->priv_size = priv_size;
        priv->type = type;

        return mp;
}

int
rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
{
        struct rte_cryptodev *dev = NULL;
        uint32_t i = 0;

        if (name == NULL)
                return -EINVAL;

        for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
                int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
                                "%s_%u", dev_name_prefix, i);

                if (ret < 0)
                        return ret;

                dev = rte_cryptodev_pmd_get_named_dev(name);
                if (!dev)
                        return 0;
        }

        return -1;
}

TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);

static struct cryptodev_driver_list cryptodev_driver_list =
        TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);

int
rte_cryptodev_driver_id_get(const char *name)
{
        struct cryptodev_driver *driver;
        const char *driver_name;

        if (name == NULL) {
                RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
                return -1;
        }

        TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
                driver_name = driver->driver->name;
                if (strncmp(driver_name, name, strlen(driver_name) + 1) == 0)
                        return driver->id;
        }
        return -1;
}

const char *
rte_cryptodev_name_get(uint8_t dev_id)
{
        struct rte_cryptodev *dev;

        if (!rte_cryptodev_is_valid_device_data(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
                return NULL;
        }

        dev = rte_cryptodev_pmd_get_dev(dev_id);
        if (dev == NULL)
                return NULL;

        return dev->data->name;
}

const char *
rte_cryptodev_driver_name_get(uint8_t driver_id)
{
        struct cryptodev_driver *driver;

        TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
                if (driver->id == driver_id)
                        return driver->driver->name;
        return NULL;
}

uint8_t
rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
                const struct rte_driver *drv)
{
        crypto_drv->driver = drv;
        crypto_drv->id = nb_drivers;

        TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);

        return nb_drivers++;
}

RTE_INIT(cryptodev_init_fp_ops)
{
        uint32_t i;

        for (i = 0; i != RTE_DIM(rte_crypto_fp_ops); i++)
                cryptodev_fp_ops_reset(rte_crypto_fp_ops + i);
}

static int
cryptodev_handle_dev_list(const char *cmd __rte_unused,
                const char *params __rte_unused,
                struct rte_tel_data *d)
{
        int dev_id;

        if (rte_cryptodev_count() < 1)
                return -EINVAL;

        rte_tel_data_start_array(d, RTE_TEL_INT_VAL);
        for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++)
                if (rte_cryptodev_is_valid_dev(dev_id))
                        rte_tel_data_add_array_int(d, dev_id);

        return 0;
}

static int
cryptodev_handle_dev_info(const char *cmd __rte_unused,
                const char *params, struct rte_tel_data *d)
{
        struct rte_cryptodev_info cryptodev_info;
        int dev_id;
        char *end_param;

        if (params == NULL || strlen(params) == 0 || !isdigit(*params))
                return -EINVAL;

        dev_id = strtoul(params, &end_param, 0);
        if (*end_param != '\0')
                CDEV_LOG_ERR("Extra parameters passed to command, ignoring");
        if (!rte_cryptodev_is_valid_dev(dev_id))
                return -EINVAL;

        rte_cryptodev_info_get(dev_id, &cryptodev_info);

        rte_tel_data_start_dict(d);
        rte_tel_data_add_dict_string(d, "device_name",
                cryptodev_info.device->name);
        rte_tel_data_add_dict_int(d, "max_nb_queue_pairs",
                cryptodev_info.max_nb_queue_pairs);

        return 0;
}

#define ADD_DICT_STAT(s) rte_tel_data_add_dict_u64(d, #s, cryptodev_stats.s)

static int
cryptodev_handle_dev_stats(const char *cmd __rte_unused,
                const char *params,
                struct rte_tel_data *d)
{
        struct rte_cryptodev_stats cryptodev_stats;
        int dev_id, ret;
        char *end_param;

        if (params == NULL || strlen(params) == 0 || !isdigit(*params))
                return -EINVAL;

        dev_id = strtoul(params, &end_param, 0);
        if (*end_param != '\0')
                CDEV_LOG_ERR("Extra parameters passed to command, ignoring");
        if (!rte_cryptodev_is_valid_dev(dev_id))
                return -EINVAL;

        ret = rte_cryptodev_stats_get(dev_id, &cryptodev_stats);
        if (ret < 0)
                return ret;

        rte_tel_data_start_dict(d);
        ADD_DICT_STAT(enqueued_count);
        ADD_DICT_STAT(dequeued_count);
        ADD_DICT_STAT(enqueue_err_count);
        ADD_DICT_STAT(dequeue_err_count);

        return 0;
}

#define CRYPTO_CAPS_SZ                                             \
        (RTE_ALIGN_CEIL(sizeof(struct rte_cryptodev_capabilities), \
                                        sizeof(uint64_t)) /        \
         sizeof(uint64_t))

static int
crypto_caps_array(struct rte_tel_data *d,
                  const struct rte_cryptodev_capabilities *capabilities)
{
        const struct rte_cryptodev_capabilities *dev_caps;
        uint64_t caps_val[CRYPTO_CAPS_SZ];
        unsigned int i = 0, j;

        rte_tel_data_start_array(d, RTE_TEL_U64_VAL);

        while ((dev_caps = &capabilities[i++])->op !=
                        RTE_CRYPTO_OP_TYPE_UNDEFINED) {
                memset(&caps_val, 0, CRYPTO_CAPS_SZ * sizeof(caps_val[0]));
                rte_memcpy(caps_val, dev_caps, sizeof(capabilities[0]));
                for (j = 0; j < CRYPTO_CAPS_SZ; j++)
                        rte_tel_data_add_array_u64(d, caps_val[j]);
        }

        return i;
}

static int
cryptodev_handle_dev_caps(const char *cmd __rte_unused, const char *params,
                          struct rte_tel_data *d)
{
        struct rte_cryptodev_info dev_info;
        struct rte_tel_data *crypto_caps;
        int crypto_caps_n;
        char *end_param;
        int dev_id;

        if (!params || strlen(params) == 0 || !isdigit(*params))
                return -EINVAL;

        dev_id = strtoul(params, &end_param, 0);
        if (*end_param != '\0')
                CDEV_LOG_ERR("Extra parameters passed to command, ignoring");
        if (!rte_cryptodev_is_valid_dev(dev_id))
                return -EINVAL;

        rte_tel_data_start_dict(d);
        crypto_caps = rte_tel_data_alloc();
        if (!crypto_caps)
                return -ENOMEM;

        rte_cryptodev_info_get(dev_id, &dev_info);
        crypto_caps_n = crypto_caps_array(crypto_caps, dev_info.capabilities);
        rte_tel_data_add_dict_container(d, "crypto_caps", crypto_caps, 0);
        rte_tel_data_add_dict_int(d, "crypto_caps_n", crypto_caps_n);

        return 0;
}

RTE_INIT(cryptodev_init_telemetry)
{
        rte_telemetry_register_cmd("/cryptodev/info", cryptodev_handle_dev_info,
                        "Returns information for a cryptodev. Parameters: int dev_id");
        rte_telemetry_register_cmd("/cryptodev/list",
                        cryptodev_handle_dev_list,
                        "Returns list of available crypto devices by IDs. No parameters.");
        rte_telemetry_register_cmd("/cryptodev/stats",
                        cryptodev_handle_dev_stats,
                        "Returns the stats for a cryptodev. Parameters: int dev_id");
        rte_telemetry_register_cmd("/cryptodev/caps",
                        cryptodev_handle_dev_caps,
                        "Returns the capabilities for a cryptodev. Parameters: int dev_id");
}