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rte_cryptodev.h(3) DPDK rte_cryptodev.h(3)

rte_cryptodev.h

#include <rte_compat.h>
#include 'rte_kvargs.h'
#include 'rte_crypto.h'
#include <rte_common.h>
#include <rte_rcu_qsbr.h>
#include 'rte_cryptodev_trace_fp.h'
#include 'rte_cryptodev_core.h'


struct rte_crypto_param_range
struct rte_cryptodev_symmetric_capability
struct rte_cryptodev_asymmetric_xform_capability
struct rte_cryptodev_asymmetric_capability
struct rte_cryptodev_capabilities
struct rte_cryptodev_sym_capability_idx
struct rte_cryptodev_asym_capability_idx
struct rte_cryptodev_info
struct rte_cryptodev_qp_conf
struct rte_cryptodev_stats
struct rte_cryptodev_config
struct rte_cryptodev_cb
union rte_cryptodev_session_ctx
struct rte_crypto_raw_dp_ctx


#define rte_crypto_op_ctod_offset(c, t, o) ((t)((char *)(c) + (o)))
#define rte_crypto_op_ctophys_offset(c, o) (rte_iova_t)((c)->phys_addr + (o))
#define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_512_BYTES RTE_BIT32(0)
#define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() { RTE_CRYPTO_OP_TYPE_UNDEFINED }
#define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
#define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
#define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
#define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
#define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
#define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
#define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
#define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
#define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
#define RTE_CRYPTODEV_FF_IN_PLACE_SGL (1ULL << 9)
#define RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT (1ULL << 10)
#define RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT (1ULL << 11)
#define RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT (1ULL << 12)
#define RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT (1ULL << 13)
#define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 14)
#define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 15)
#define RTE_CRYPTODEV_FF_SECURITY (1ULL << 16)
#define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP (1ULL << 17)
#define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT (1ULL << 18)
#define RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED (1ULL << 19)
#define RTE_CRYPTODEV_FF_ASYM_SESSIONLESS (1ULL << 20)
#define RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO (1ULL << 21)
#define RTE_CRYPTODEV_FF_SYM_SESSIONLESS (1ULL << 22)
#define RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA (1ULL << 23)
#define RTE_CRYPTODEV_FF_SYM_RAW_DP (1ULL << 24)
#define RTE_CRYPTODEV_FF_CIPHER_MULTIPLE_DATA_UNITS (1ULL << 25)
#define RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY (1ULL << 26)
#define RTE_CRYPTODEV_FF_SECURITY_INNER_CSUM (1ULL << 27)
#define RTE_CRYPTODEV_FF_SECURITY_RX_INJECT (1ULL << 28)
#define RTE_CRYPTODEV_FF_MLDSA_SIGN_PREHASH (1ULL << 29)
#define RTE_CRYPTODEV_QP_PRIORITY_HIGHEST 0
#define RTE_CRYPTODEV_QP_PRIORITY_NORMAL 128
#define RTE_CRYPTODEV_QP_PRIORITY_LOWEST 255
#define RTE_CRYPTODEV_NAME_MAX_LEN (64)


typedef uint16_t(* rte_cryptodev_callback_fn) (uint16_t dev_id, uint16_t qp_id, struct rte_crypto_op **ops, uint16_t nb_ops, void *user_param)
typedef void(* rte_cryptodev_cb_fn) (uint8_t dev_id, enum rte_cryptodev_event_type event, void *cb_arg)
typedef uint32_t(* cryptodev_sym_raw_enqueue_burst_t) (void *qp, uint8_t *drv_ctx, struct rte_crypto_sym_vec *vec, union rte_crypto_sym_ofs ofs, void *user_data[], int *enqueue_status)
typedef int(* cryptodev_sym_raw_enqueue_t) (void *qp, uint8_t *drv_ctx, struct rte_crypto_vec *data_vec, uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs, struct rte_crypto_va_iova_ptr *iv, struct rte_crypto_va_iova_ptr *digest, struct rte_crypto_va_iova_ptr *aad_or_auth_iv, void *user_data)
typedef int(* cryptodev_sym_raw_operation_done_t) (void *qp, uint8_t *drv_ctx, uint32_t n)
typedef uint32_t(* rte_cryptodev_raw_get_dequeue_count_t) (void *user_data)
typedef void(* rte_cryptodev_raw_post_dequeue_t) (void *user_data, uint32_t index, uint8_t is_op_success)
typedef uint32_t(* cryptodev_sym_raw_dequeue_burst_t) (void *qp, uint8_t *drv_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, int *dequeue_status)
typedef void *(* cryptodev_sym_raw_dequeue_t) (void *qp, uint8_t *drv_ctx, int *dequeue_status, enum rte_crypto_op_status *op_status)


enum rte_cryptodev_event_type { RTE_CRYPTODEV_EVENT_UNKNOWN, RTE_CRYPTODEV_EVENT_ERROR, RTE_CRYPTODEV_EVENT_MAX }


const struct rte_cryptodev_symmetric_capability * rte_cryptodev_sym_capability_get (uint8_t dev_id, const struct rte_cryptodev_sym_capability_idx *idx)
const struct rte_cryptodev_asymmetric_xform_capability * rte_cryptodev_asym_capability_get (uint8_t dev_id, const struct rte_cryptodev_asym_capability_idx *idx)
int rte_cryptodev_sym_capability_check_cipher (const struct rte_cryptodev_symmetric_capability *capability, uint16_t key_size, uint16_t iv_size)
int rte_cryptodev_sym_capability_check_auth (const struct rte_cryptodev_symmetric_capability *capability, uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
int rte_cryptodev_sym_capability_check_aead (const struct rte_cryptodev_symmetric_capability *capability, uint16_t key_size, uint16_t digest_size, uint16_t aad_size, uint16_t iv_size)
int rte_cryptodev_asym_xform_capability_check_optype (const struct rte_cryptodev_asymmetric_xform_capability *capability, enum rte_crypto_asym_op_type op_type)
int rte_cryptodev_asym_xform_capability_check_modlen (const struct rte_cryptodev_asymmetric_xform_capability *capability, uint16_t modlen)
bool rte_cryptodev_asym_xform_capability_check_hash (const struct rte_cryptodev_asymmetric_xform_capability *capability, enum rte_crypto_auth_algorithm hash)
__rte_experimental int rte_cryptodev_asym_xform_capability_check_opcap (const struct rte_cryptodev_asymmetric_xform_capability *capability, enum rte_crypto_asym_op_type op_type, uint8_t cap)
int rte_cryptodev_get_cipher_algo_enum (enum rte_crypto_cipher_algorithm *algo_enum, const char *algo_string)
int rte_cryptodev_get_auth_algo_enum (enum rte_crypto_auth_algorithm *algo_enum, const char *algo_string)
int rte_cryptodev_get_aead_algo_enum (enum rte_crypto_aead_algorithm *algo_enum, const char *algo_string)
int rte_cryptodev_asym_get_xform_enum (enum rte_crypto_asym_xform_type *xform_enum, const char *xform_string)
__rte_experimental const char * rte_cryptodev_get_cipher_algo_string (enum rte_crypto_cipher_algorithm algo_enum)
__rte_experimental const char * rte_cryptodev_get_auth_algo_string (enum rte_crypto_auth_algorithm algo_enum)
__rte_experimental const char * rte_cryptodev_get_aead_algo_string (enum rte_crypto_aead_algorithm algo_enum)
__rte_experimental const char * rte_cryptodev_asym_get_xform_string (enum rte_crypto_asym_xform_type xform_enum)
const char * rte_cryptodev_get_feature_name (uint64_t flag)
int rte_cryptodev_get_dev_id (const char *name)
const char * rte_cryptodev_name_get (uint8_t dev_id)
uint8_t rte_cryptodev_count (void)
uint8_t rte_cryptodev_device_count_by_driver (uint8_t driver_id)
uint8_t rte_cryptodev_devices_get (const char *driver_name, uint8_t *devices, uint8_t nb_devices)
int rte_cryptodev_configure (uint8_t dev_id, struct rte_cryptodev_config *config)
int rte_cryptodev_start (uint8_t dev_id)
void rte_cryptodev_stop (uint8_t dev_id)
int rte_cryptodev_close (uint8_t dev_id)
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)
__rte_experimental int rte_cryptodev_queue_pair_reset (uint8_t dev_id, uint16_t queue_pair_id, const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
int rte_cryptodev_get_qp_status (uint8_t dev_id, uint16_t queue_pair_id)
uint16_t rte_cryptodev_queue_pair_count (uint8_t dev_id)
int rte_cryptodev_stats_get (uint8_t dev_id, struct rte_cryptodev_stats *stats)
void rte_cryptodev_stats_reset (uint8_t dev_id)
void rte_cryptodev_info_get (uint8_t dev_id, struct rte_cryptodev_info *dev_info)
int rte_cryptodev_callback_register (uint8_t dev_id, enum rte_cryptodev_event_type event, rte_cryptodev_cb_fn cb_fn, void *cb_arg)
int rte_cryptodev_callback_unregister (uint8_t dev_id, enum rte_cryptodev_event_type event, rte_cryptodev_cb_fn cb_fn, void *cb_arg)
__rte_experimental int rte_cryptodev_queue_pair_event_error_query (uint8_t dev_id, uint16_t qp_id)
RTE_TAILQ_HEAD (rte_cryptodev_cb_list, rte_cryptodev_callback)
void * rte_cryptodev_get_sec_ctx (uint8_t dev_id)
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 priv_size, int socket_id)
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)
void * rte_cryptodev_sym_session_create (uint8_t dev_id, struct rte_crypto_sym_xform *xforms, struct rte_mempool *mp)
int rte_cryptodev_asym_session_create (uint8_t dev_id, struct rte_crypto_asym_xform *xforms, struct rte_mempool *mp, void **session)
int rte_cryptodev_sym_session_free (uint8_t dev_id, void *sess)
int rte_cryptodev_asym_session_free (uint8_t dev_id, void *sess)
unsigned int rte_cryptodev_asym_get_header_session_size (void)
unsigned int rte_cryptodev_sym_get_private_session_size (uint8_t dev_id)
unsigned int rte_cryptodev_asym_get_private_session_size (uint8_t dev_id)
unsigned int rte_cryptodev_is_valid_dev (uint8_t dev_id)
int rte_cryptodev_driver_id_get (const char *name)
const char * rte_cryptodev_driver_name_get (uint8_t driver_id)
int rte_cryptodev_sym_session_set_user_data (void *sess, void *data, uint16_t size)
static uint64_t rte_cryptodev_sym_session_opaque_data_get (void *sess)
static void rte_cryptodev_sym_session_opaque_data_set (void *sess, uint64_t opaque)
void * rte_cryptodev_sym_session_get_user_data (void *sess)
int rte_cryptodev_asym_session_set_user_data (void *sess, void *data, uint16_t size)
void * rte_cryptodev_asym_session_get_user_data (void *sess)
uint32_t rte_cryptodev_sym_cpu_crypto_process (uint8_t dev_id, void *sess, union rte_crypto_sym_ofs ofs, struct rte_crypto_sym_vec *vec)
int rte_cryptodev_get_raw_dp_ctx_size (uint8_t dev_id)
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)
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)
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)
static __rte_experimental __rte_always_inline int rte_cryptodev_raw_enqueue (struct rte_crypto_raw_dp_ctx *ctx, struct rte_crypto_vec *data_vec, uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs, struct rte_crypto_va_iova_ptr *iv, struct rte_crypto_va_iova_ptr *digest, struct rte_crypto_va_iova_ptr *aad_or_auth_iv, void *user_data)
int rte_cryptodev_raw_enqueue_done (struct rte_crypto_raw_dp_ctx *ctx, uint32_t 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, int *dequeue_status)
static __rte_experimental __rte_always_inline void * rte_cryptodev_raw_dequeue (struct rte_crypto_raw_dp_ctx *ctx, int *dequeue_status, enum rte_crypto_op_status *op_status)
int rte_cryptodev_raw_dequeue_done (struct rte_crypto_raw_dp_ctx *ctx, uint32_t n)
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)
int rte_cryptodev_remove_enq_callback (uint8_t dev_id, uint16_t qp_id, struct rte_cryptodev_cb *cb)
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)
int rte_cryptodev_remove_deq_callback (uint8_t dev_id, uint16_t qp_id, struct rte_cryptodev_cb *cb)
static uint16_t rte_cryptodev_dequeue_burst (uint8_t dev_id, uint16_t qp_id, struct rte_crypto_op **ops, uint16_t nb_ops)
static uint16_t rte_cryptodev_enqueue_burst (uint8_t dev_id, uint16_t qp_id, struct rte_crypto_op **ops, uint16_t nb_ops)
static __rte_experimental int rte_cryptodev_qp_depth_used (uint8_t dev_id, uint16_t qp_id)

RTE Cryptographic Device APIs

Defines RTE Crypto Device APIs for the provisioning of cipher and authentication operations.

Definition in file rte_cryptodev.h.

A macro that points to an offset from the start of the crypto operation structure (rte_crypto_op)

The returned pointer is cast to type t.

Parameters

c The crypto operation.
o The offset from the start of the crypto operation.
t The type to cast the result into.

Definition at line 64 of file rte_cryptodev.h.

A macro that returns the physical address that points to an offset from the start of the crypto operation (rte_crypto_op)

Parameters

c The crypto operation.
o The offset from the start of the crypto operation to calculate address from.

Definition at line 78 of file rte_cryptodev.h.

Data-unit supported lengths of cipher algorithms. A bit can represent any set of data-unit sizes (single size, multiple size, range, etc).

Definition at line 100 of file rte_cryptodev.h.

Macro used at end of crypto PMD list

Definition at line 508 of file rte_cryptodev.h.

Crypto device supported feature flags

Note: New features flags should be added to the end of the list

Keep these flags synchronised with rte_cryptodev_get_feature_name() Symmetric crypto operations are supported

Definition at line 521 of file rte_cryptodev.h.

Asymmetric crypto operations are supported

Definition at line 523 of file rte_cryptodev.h.

Chaining symmetric crypto operations are supported

Definition at line 525 of file rte_cryptodev.h.

Utilises CPU SIMD SSE instructions

Definition at line 527 of file rte_cryptodev.h.

Utilises CPU SIMD AVX instructions

Definition at line 529 of file rte_cryptodev.h.

Utilises CPU SIMD AVX2 instructions

Definition at line 531 of file rte_cryptodev.h.

Utilises CPU AES-NI instructions

Definition at line 533 of file rte_cryptodev.h.

Operations are off-loaded to an external hardware accelerator

Definition at line 537 of file rte_cryptodev.h.

Utilises CPU SIMD AVX512 instructions

Definition at line 539 of file rte_cryptodev.h.

In-place Scatter-gather (SGL) buffers, with multiple segments, are supported

Definition at line 543 of file rte_cryptodev.h.

Out-of-place Scatter-gather (SGL) buffers are supported in input and output

Definition at line 547 of file rte_cryptodev.h.

Out-of-place Scatter-gather (SGL) buffers are supported in input, combined with linear buffers (LB), with a single segment in output

Definition at line 552 of file rte_cryptodev.h.

Out-of-place Scatter-gather (SGL) buffers are supported in output, combined with linear buffers (LB) in input

Definition at line 556 of file rte_cryptodev.h.

Out-of-place linear buffers (LB) are supported in input and output

Definition at line 558 of file rte_cryptodev.h.

Utilises CPU NEON instructions

Definition at line 560 of file rte_cryptodev.h.

Utilises ARM CPU Cryptographic Extensions

Definition at line 562 of file rte_cryptodev.h.

Support Security Protocol Processing

Definition at line 564 of file rte_cryptodev.h.

Support RSA Private Key OP with exponent

Definition at line 566 of file rte_cryptodev.h.

Support RSA Private Key OP with CRT (quintuple) Keys

Definition at line 568 of file rte_cryptodev.h.

Support encrypted-digest operations where digest is appended to data

Definition at line 570 of file rte_cryptodev.h.

Support asymmetric session-less operations

Definition at line 572 of file rte_cryptodev.h.

Support symmetric cpu-crypto processing

Definition at line 574 of file rte_cryptodev.h.

Support symmetric session-less operations

Definition at line 576 of file rte_cryptodev.h.

Support operations on data which is not byte aligned

Definition at line 578 of file rte_cryptodev.h.

Support accelerator specific symmetric raw data-path APIs

Definition at line 580 of file rte_cryptodev.h.

Support operations on multiple data-units message

Definition at line 582 of file rte_cryptodev.h.

Support wrapped key in cipher xform

Definition at line 584 of file rte_cryptodev.h.

Support inner checksum computation/verification

Definition at line 586 of file rte_cryptodev.h.

Support Rx injection after security processing

Definition at line 588 of file rte_cryptodev.h.

Support Pre Hash ML-DSA Signature Generation

Definition at line 590 of file rte_cryptodev.h.

Highest priority of a cryptodev queue pair

See also

rte_cryptodev_queue_pair_setup(), rte_cryptodev_enqueue_burst()

Definition at line 649 of file rte_cryptodev.h.

Normal priority of a cryptodev queue pair

See also

rte_cryptodev_queue_pair_setup(), rte_cryptodev_enqueue_burst()

Definition at line 653 of file rte_cryptodev.h.

Lowest priority of a cryptodev queue pair

See also

rte_cryptodev_queue_pair_setup(), rte_cryptodev_enqueue_burst()

Definition at line 657 of file rte_cryptodev.h.

Max length of name of crypto PMD

Definition at line 727 of file rte_cryptodev.h.

typedef uint16_t(* rte_cryptodev_callback_fn) (uint16_t dev_id, uint16_t qp_id, struct rte_crypto_op **ops, uint16_t nb_ops, void *user_param)

Function type used for processing crypto ops when enqueue/dequeue burst is called.

The callback function is called on enqueue/dequeue burst immediately.

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair on which ops are enqueued/dequeued. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
ops The address of an array of nb_ops pointers to rte_crypto_op structures which contain the crypto operations to be processed.
nb_ops The number of operations to process.
user_param The arbitrary user parameter passed in by the application when the callback was originally registered.

Returns

The number of ops to be enqueued to the crypto device.

Definition at line 697 of file rte_cryptodev.h.

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

Typedef for application callback function to be registered by application software for notification of device events

Parameters

dev_id Crypto device identifier
event Crypto device event to register for notification of.
cb_arg User specified parameter to be passed as to passed to users callback function.

Definition at line 709 of file rte_cryptodev.h.

typedef uint32_t(* cryptodev_sym_raw_enqueue_burst_t) (void *qp, uint8_t *drv_ctx, struct rte_crypto_sym_vec *vec, union rte_crypto_sym_ofs ofs, void *user_data[], int *enqueue_status)

Enqueue a vectorized operation descriptor into the device queue but the driver may or may not start processing until rte_cryptodev_raw_enqueue_done() is called.

Parameters

qp Driver specific queue pair data.
drv_ctx Driver specific context data.
vec Vectorized operation descriptor.
ofs Start and stop offsets for auth and cipher operations.
user_data The array of user data for dequeue later.
enqueue_status Driver written value to specify the enqueue status. Possible values:
  • 1: The number of operations returned are enqueued successfully.
  • 0: The number of operations returned are cached into the queue but are not processed until rte_cryptodev_raw_enqueue_done() is called.
  • negative integer: Error occurred.

Returns

•
The number of operations in the descriptor successfully enqueued or cached into the queue but not enqueued yet, depends on the 'enqueue_status' value.

Definition at line 1452 of file rte_cryptodev.h.

typedef int(* cryptodev_sym_raw_enqueue_t) (void *qp, uint8_t *drv_ctx, struct rte_crypto_vec *data_vec, uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs, struct rte_crypto_va_iova_ptr *iv, struct rte_crypto_va_iova_ptr *digest, struct rte_crypto_va_iova_ptr *aad_or_auth_iv, void *user_data)

Enqueue single raw data vector into the device queue but the driver may or may not start processing until rte_cryptodev_raw_enqueue_done() is called.

Parameters

qp Driver specific queue pair data.
drv_ctx Driver specific context data.
data_vec The buffer data vector.
n_data_vecs Number of buffer data vectors.
ofs Start and stop offsets for auth and cipher operations.
iv IV virtual and IOVA addresses
digest digest virtual and IOVA addresses
aad_or_auth_iv AAD or auth IV virtual and IOVA addresses, depends on the algorithm used.
user_data The user data.

Returns

  • 1: The data vector is enqueued successfully.
  • 0: The data vector is cached into the queue but is not processed until rte_cryptodev_raw_enqueue_done() is called.
  • negative integer: failure.

Definition at line 1477 of file rte_cryptodev.h.

typedef int(* cryptodev_sym_raw_operation_done_t) (void *qp, uint8_t *drv_ctx, uint32_t n)

Inform the cryptodev queue pair to start processing or finish dequeuing all enqueued/dequeued operations.

Parameters

qp Driver specific queue pair data.
drv_ctx Driver specific context data.
n The total number of processed operations.

Returns

  • On success return 0.
  • On failure return negative integer.

Definition at line 1496 of file rte_cryptodev.h.

typedef uint32_t(* rte_cryptodev_raw_get_dequeue_count_t) (void *user_data)

Typedef that the user provided for the driver to get the dequeue count. The function may return a fixed number or the number parsed from the user data stored in the first processed operation.

Parameters

user_data Dequeued user data.

Returns

•
The number of operations to be dequeued.

Definition at line 1508 of file rte_cryptodev.h.

typedef void(* rte_cryptodev_raw_post_dequeue_t) (void *user_data, uint32_t index, uint8_t is_op_success)

Typedef that the user provided to deal with post dequeue operation, such as filling status.

Parameters

user_data Dequeued user data.
index Index number of the processed descriptor.
is_op_success Operation status provided by the driver.

Definition at line 1518 of file rte_cryptodev.h.

typedef uint32_t(* cryptodev_sym_raw_dequeue_burst_t) (void *qp, uint8_t *drv_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, int *dequeue_status)

Dequeue a burst of symmetric crypto processing.

Parameters

qp Driver specific queue pair data.
drv_ctx Driver specific context data.
get_dequeue_count User provided callback function to obtain dequeue operation count.
max_nb_to_dequeue When get_dequeue_count is NULL this value is used to pass the maximum number of operations to be dequeued.
post_dequeue User provided callback function to post-process a dequeued operation.
out_user_data User data pointer array to be retrieve from device queue. In case of is_user_data_array is set there should be enough room to store all user data.
is_user_data_array Set 1 if every dequeued user data will be written into out_user_data array. Set 0 if only the first user data will be written into out_user_data array.
n_success Driver written value to specific the total successful operations count.
dequeue_status Driver written value to specify the dequeue status. Possible values:
  • 1: Successfully dequeued the number of operations returned. The user data previously set during enqueue is stored in the 'out_user_data'.
  • 0: The number of operations returned are completed and the user data is stored in the 'out_user_data', but they are not freed from the queue until rte_cryptodev_raw_dequeue_done() is called.
  • negative integer: Error occurred.

Returns

•
The number of operations dequeued or completed but not freed from the queue, depends on 'dequeue_status' value.

Definition at line 1562 of file rte_cryptodev.h.

typedef void *(* cryptodev_sym_raw_dequeue_t) (void *qp, uint8_t *drv_ctx, int *dequeue_status, enum rte_crypto_op_status *op_status)

Dequeue a symmetric crypto processing.

Parameters

qp Driver specific queue pair data.
drv_ctx Driver specific context data.
dequeue_status Driver written value to specify the dequeue status. Possible values:
  • 1: Successfully dequeued a operation. The user data is returned.
  • 0: The first operation in the queue is completed and the user data previously set during enqueue is returned, but it is not freed from the queue until rte_cryptodev_raw_dequeue_done() is called.
  • negative integer: Error occurred.

op_status Driver written value to specify operation status.

Returns

•
The user data pointer retrieved from device queue or NULL if no operation is ready for dequeue.

Definition at line 1593 of file rte_cryptodev.h.

Definitions of Crypto device event types

Enumerator

unknown event type
error interrupt event
max value of this enum

Definition at line 639 of file rte_cryptodev.h.

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

Provide capabilities available for defined device and algorithm

Parameters

dev_id The identifier of the device.
idx Description of crypto algorithms.

Returns

  • Return description of the symmetric crypto capability if exist.
  • Return NULL if the capability not exist.

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

Provide capabilities available for defined device and xform

Parameters

dev_id The identifier of the device.
idx Description of asym crypto xform.

Returns

  • Return description of the asymmetric crypto capability if exist.
  • Return NULL if the capability not exist.

Check if key size and initial vector are supported in crypto cipher capability

Parameters

capability Description of the symmetric crypto capability.
key_size Cipher key size.
iv_size Cipher initial vector size.

Returns

  • Return 0 if the parameters are in range of the capability.
  • Return -1 if the parameters are out of range of the capability.

Check if key size and initial vector are supported in crypto auth capability

Parameters

capability Description of the symmetric crypto capability.
key_size Auth key size.
digest_size Auth digest size.
iv_size Auth initial vector size.

Returns

  • Return 0 if the parameters are in range of the capability.
  • Return -1 if the parameters are out of range of the capability.

Check if key, digest, AAD and initial vector sizes are supported in crypto AEAD capability

Parameters

capability Description of the symmetric crypto capability.
key_size AEAD key size.
digest_size AEAD digest size.
aad_size AEAD AAD size.
iv_size AEAD IV size.

Returns

  • Return 0 if the parameters are in range of the capability.
  • Return -1 if the parameters are out of range of the capability.

Check if op type is supported

Parameters

capability Description of the asymmetric crypto capability.
op_type op type

Returns

  • Return 1 if the op type is supported
  • Return 0 if unsupported

Check if modulus length is in supported range

Parameters

capability Description of the asymmetric crypto capability.
modlen modulus length.

Returns

  • Return 0 if the parameters are in range of the capability.
  • Return -1 if the parameters are out of range of the capability.

Check if hash algorithm is supported.

Parameters

capability Asymmetric crypto capability.
hash Hash algorithm.

Returns

  • Return true if the hash algorithm is supported.
  • Return false if the hash algorithm is not supported.

Warning

EXPERIMENTAL: this API may change without prior notice.

Check if op capability is supported

Parameters

capability Description of the asymmetric crypto capability.
op_type op type
cap op capability

Returns

  • Return 1 if the op capability is supported
  • Return 0 if unsupported

Provide the cipher algorithm enum, given an algorithm string

Parameters

algo_enum A pointer to the cipher algorithm enum to be filled
algo_string Authentication algo string

Returns

  • Return -1 if string is not valid
  • Return 0 is the string is valid

Provide the authentication algorithm enum, given an algorithm string

Parameters

algo_enum A pointer to the authentication algorithm enum to be filled
algo_string Authentication algo string

Returns

  • Return -1 if string is not valid
  • Return 0 is the string is valid

Provide the AEAD algorithm enum, given an algorithm string

Parameters

algo_enum A pointer to the AEAD algorithm enum to be filled
algo_string AEAD algorithm string

Returns

  • Return -1 if string is not valid
  • Return 0 is the string is valid

Provide the Asymmetric xform enum, given an xform string

Parameters

xform_enum A pointer to the xform type enum to be filled
xform_string xform string

Returns

  • Return -1 if string is not valid
  • Return 0 if the string is valid

Provide the cipher algorithm string, given an algorithm enum.

Parameters

algo_enum cipher algorithm enum

Returns

  • Return NULL if enum is not valid
  • Return algo_string corresponding to enum

Provide the authentication algorithm string, given an algorithm enum.

Parameters

algo_enum auth algorithm enum

Returns

  • Return NULL if enum is not valid
  • Return algo_string corresponding to enum

Provide the AEAD algorithm string, given an algorithm enum.

Parameters

algo_enum AEAD algorithm enum

Returns

  • Return NULL if enum is not valid
  • Return algo_string corresponding to enum

Provide the Asymmetric xform string, given an xform enum.

Parameters

xform_enum xform type enum

Returns

  • Return NULL, if enum is not valid.
  • Return xform string, for valid enum.

Get the name of a crypto device feature flag

Parameters

flag The mask describing the flag.

Returns

The name of this flag, or NULL if it's not a valid feature flag.

Get the device identifier for the named crypto device.

Parameters

name device name to select the device structure.

Returns

  • Returns crypto device identifier on success.
  • Return -1 on failure to find named crypto device.

Get the crypto device name given a device identifier.

Parameters

dev_id The identifier of the device

Returns

  • Returns crypto device name.
  • Returns NULL if crypto device is not present.

Get the total number of crypto devices that have been successfully initialised.

Returns

•
The total number of usable crypto devices.

Get number of crypto device defined type.

Parameters

driver_id driver identifier.

Returns

Returns number of crypto device.

Get number and identifiers of attached crypto devices that use the same crypto driver.

Parameters

driver_name driver name.
devices output devices identifiers.
nb_devices maximal number of devices.

Returns

Returns number of attached crypto device.

Configure a device.

This function must be invoked first before any other function in the API. This function can also be re-invoked when a device is in the stopped state.

Parameters

dev_id The identifier of the device to configure.
config The crypto device configuration structure.

Returns

  • 0: Success, device configured.
  • <0: Error code returned by the driver configuration function.

Start an device.

The device start step is the last one and consists of setting the configured offload features and in starting the transmit and the receive units of the device. On success, all basic functions exported by the API (link status, receive/transmit, and so on) can be invoked.

Parameters

dev_id The identifier of the device.

Returns

  • 0: Success, device started.
  • <0: Error code of the driver device start function.

Stop an device. The device can be restarted with a call to rte_cryptodev_start()

Parameters

dev_id The identifier of the device.

Close an device. The device cannot be restarted!

Parameters

dev_id The identifier of the device.

Returns

  • 0 on successfully closing device
  • <0 on failure to close device

Allocate and set up a receive queue pair for a device.

Parameters

dev_id The identifier of the device.
queue_pair_id The index of the queue pairs to set up. The value must be in the range [0, nb_queue_pair
•
1] previously supplied to rte_cryptodev_configure().

qp_conf The pointer to the configuration data to be used for the queue pair.
socket_id The socket_id argument is the socket identifier in case of NUMA. The value can be SOCKET_ID_ANY if there is no NUMA constraint for the DMA memory allocated for the receive queue pair.

Returns

  • 0: Success, queue pair correctly set up.
  • <0: Queue pair configuration failed

Warning

EXPERIMENTAL: this API may change without prior notice.

Reset a queue pair for a device. The caller of this API must ensure that, there are no enqueues to the queue and there are no pending/inflight packets in the queue when the API is called. The API can reconfigure the queue pair when the queue pair configuration data is provided.

Parameters

dev_id The identifier of the device.
queue_pair_id The index of the queue pairs to set up. The value must be in the range [0, nb_queue_pair - 1] previously supplied to rte_cryptodev_configure().
qp_conf The pointer to configuration data to be used for the queue pair. It should be NULL, if the API is called from an interrupt context.
socket_id The socket_id argument is the socket identifier in case of NUMA. The value can be SOCKET_ID_ANY if there is no NUMA constraint for the DMA memory allocated for the queue pair.

Returns

  • 0: Queue pair is reset successfully.
  • ENOTSUP: If the operation is not supported by the PMD.
  • <0: Queue pair reset failed

Get the status of queue pairs setup on a specific crypto device

Parameters

dev_id Crypto device identifier.
queue_pair_id The index of the queue pairs to set up. The value must be in the range [0, nb_queue_pair
•
1] previously supplied to rte_cryptodev_configure().

Returns

  • 0: qp was not configured
  • 1: qp was configured
  • -EINVAL: device was not configured

Get the number of queue pairs on a specific crypto device

Parameters

dev_id Crypto device identifier.

Returns

•
The number of configured queue pairs.

Retrieve the general I/O statistics of a device.

Parameters

dev_id The identifier of the device.
stats A pointer to a structure of type rte_cryptodev_stats to be filled with the values of device counters.

Returns

  • Zero if successful.
  • Non-zero otherwise.

Reset the general I/O statistics of a device.

Parameters

dev_id The identifier of the device.

Retrieve the contextual information of a device.

Parameters

dev_id The identifier of the device.
dev_info A pointer to a structure of type rte_cryptodev_info to be filled with the contextual information of the device.

Note

The capabilities field of dev_info is set to point to the first element of an array of struct rte_cryptodev_capabilities. The element after the last valid element has it's op field set to RTE_CRYPTO_OP_TYPE_UNDEFINED.

Register a callback function for specific device id.

Parameters

dev_id Device id.
event Event interested.
cb_fn User supplied callback function to be called.
cb_arg Pointer to the parameters for the registered callback.

Returns

  • On success, zero.
  • On failure, a negative value.

Unregister a callback function for specific device id.

Parameters

dev_id The device identifier.
event Event interested.
cb_fn User supplied callback function to be called.
cb_arg Pointer to the parameters for the registered callback.

Returns

  • On success, zero.
  • On failure, a negative value.

Warning

EXPERIMENTAL: this API may change without prior notice.

Query a cryptodev queue pair if there are pending RTE_CRYPTODEV_EVENT_ERROR events.

Parameters

dev_id The device identifier.
qp_id Queue pair index to be queried.

Returns

  • 1 if requested queue has a pending event.
  • 0 if no pending event is found.
  • a negative value on failure

Structure to keep track of registered callbacks

Get the security context for the cryptodev.

Parameters

dev_id The device identifier.

Returns

  • NULL on error.
  • Pointer to security context on success.

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 priv_size, int socket_id)

Create a symmetric session mempool.

Parameters

name The unique mempool name.
nb_elts The number of elements in the mempool.
elt_size The size of the element. This should be the size of the cryptodev PMD session private data obtained through rte_cryptodev_sym_get_private_session_size() function call. For the user who wants to use the same mempool for heterogeneous PMDs this value should be the maximum value of their private session sizes. Please note the created mempool will have bigger elt size than this value as necessary session header and the possible padding are filled into each elt.
cache_size The number of per-lcore cache elements
priv_size The private data size of each session.
socket_id The socket_id argument is the socket identifier in the case of NUMA. The value can be SOCKET_ID_ANY if there is no NUMA constraint for the reserved zone.

Returns

  • On success returns the created session mempool pointer
  • On failure returns NULL

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)

Create an asymmetric session mempool.

Parameters

name The unique mempool name.
nb_elts The number of elements in the mempool.
cache_size The number of per-lcore cache elements
user_data_size The size of user data to be placed after session private data.
socket_id The socket_id argument is the socket identifier in the case of NUMA. The value can be SOCKET_ID_ANY if there is no NUMA constraint for the reserved zone.

Returns

  • On success return mempool
  • On failure returns NULL

Create symmetric crypto session and fill out private data for the device id, based on its device type.

Parameters

dev_id ID of device that we want the session to be used on
xforms Symmetric crypto transform operations to apply on flow processed with this session
mp Mempool to allocate symmetric session objects from

Returns

  • On success return pointer to sym-session.
  • On failure returns NULL and rte_errno is set to the error code:
•
EINVAL on invalid arguments.
•
ENOMEM on memory error for session allocation.
•
ENOTSUP if device doesn't support session configuration.

Create and initialise an asymmetric crypto session structure. Calls the PMD to configure the private session data.

Parameters

dev_id ID of device that we want the session to be used on
xforms Asymmetric crypto transform operations to apply on flow processed with this session
mp mempool to allocate asymmetric session objects from
session void ** for session to be used

Returns

  • 0 on success.
  • -EINVAL on invalid arguments.
  • -ENOMEM on memory error for session allocation.
  • -ENOTSUP if device doesn't support session configuration.

Frees session for the device id and returning it to its mempool. It is the application's responsibility to ensure that the session is not still in-flight operations using it.

Parameters

dev_id ID of device that uses the session.
sess Session header to be freed.

Returns

  • 0 if successful.
  • -EINVAL if session is NULL or the mismatched device ids.

Clears and frees asymmetric crypto session header and private data, returning it to its original mempool.

Parameters

dev_id ID of device that uses the asymmetric session.
sess Session header to be freed.

Returns

  • 0 if successful.
  • -EINVAL if device is invalid or session is NULL.

Get the size of the asymmetric session header.

Returns

Size of the asymmetric header session.

Get the size of the private symmetric session data for a device.

Parameters

dev_id The device identifier.

Returns

  • Size of the private data, if successful
  • 0 if device is invalid or does not have private symmetric session

Get the size of the private data for asymmetric session on device

Parameters

dev_id The device identifier.

Returns

  • Size of the asymmetric private data, if successful
  • 0 if device is invalid or does not have private session

Validate if the crypto device index is valid attached crypto device.

Parameters

dev_id Crypto device index.

Returns

•
If the device index is valid (1) or not (0).

Provide driver identifier.

Parameters

name The pointer to a driver name.

Returns

The driver type identifier or -1 if no driver found

Provide driver name.

Parameters

driver_id The driver identifier.

Returns

The driver name or null if no driver found

Store user data in a session.

Parameters

sess Session pointer allocated by rte_cryptodev_sym_session_create.
data Pointer to the user data.
size Size of the user data.

Returns

  • On success, zero.
  • On failure, a negative value.

Get opaque data from session handle

Definition at line 1310 of file rte_cryptodev.h.

Set opaque data in session handle

Definition at line 1319 of file rte_cryptodev.h.

Get user data stored in a session.

Parameters

sess Session pointer allocated by rte_cryptodev_sym_session_create.

Returns

  • On success return pointer to user data.
  • On failure returns NULL.

Store user data in an asymmetric session.

Parameters

sess Session pointer allocated by rte_cryptodev_asym_session_create.
data Pointer to the user data.
size Size of the user data.

Returns

  • On success, zero.
  • -EINVAL if the session pointer is invalid.
  • -ENOMEM if the available user data size is smaller than the size parameter.

Get user data stored in an asymmetric session.

Parameters

sess Session pointer allocated by rte_cryptodev_asym_session_create.

Returns

  • On success return pointer to user data.
  • On failure returns NULL.

Perform actual crypto processing (encrypt/digest or auth/decrypt) on user provided data.

Parameters

dev_id The device identifier.
sess Cryptodev session structure
ofs Start and stop offsets for auth and cipher operations
vec Vectorized operation descriptor

Returns

•
Returns number of successfully processed packets.

Get the size of the raw data-path context buffer.

Parameters

dev_id The device identifier.

Returns

  • If the device supports raw data-path APIs, return the context size.
  • If the device does not support the APIs, return -1.

Set session event meta data

Parameters

dev_id The device identifier.
sess Crypto or security session.
op_type Operation type.
sess_type Session type.
ev_mdata Pointer to the event crypto meta data (aka union rte_event_crypto_metadata)
size Size of ev_mdata.

Returns

  • On success, zero.
  • On failure, a negative value.

Configure raw data-path context data.

Parameters

dev_id The device identifier.
qp_id The index of the queue pair from which to retrieve processed packets. The value must be in the range [0, nb_queue_pair - 1] previously supplied to rte_cryptodev_configure().
ctx The raw data-path context data.
sess_type Session type.
session_ctx Session context data.
is_update Set 0 if it is to initialize the ctx. Set 1 if ctx is initialized and only to update session context data.

Returns

  • On success return 0.
  • On failure return negative integer.
•
-EINVAL if input parameters are invalid.
•
-ENOTSUP if crypto device does not support raw DP operations with the provided session.

Enqueue a vectorized operation descriptor into the device queue but the driver may or may not start processing until rte_cryptodev_raw_enqueue_done() is called.

Parameters

ctx The initialized raw data-path context data.
vec Vectorized operation descriptor.
ofs Start and stop offsets for auth and cipher operations.
user_data The array of user data for dequeue later.
enqueue_status Driver written value to specify the enqueue status. Possible values:
  • 1: The number of operations returned are enqueued successfully.
  • 0: The number of operations returned are cached into the queue but are not processed until rte_cryptodev_raw_enqueue_done() is called.
  • negative integer: Error occurred.

Returns

•
The number of operations in the descriptor successfully enqueued or cached into the queue but not enqueued yet, depends on the 'enqueue_status' value.

static __rte_experimental __rte_always_inline int rte_cryptodev_raw_enqueue (struct rte_crypto_raw_dp_ctx * ctx, struct rte_crypto_vec * data_vec, uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs, struct rte_crypto_va_iova_ptr * iv, struct rte_crypto_va_iova_ptr * digest, struct rte_crypto_va_iova_ptr * aad_or_auth_iv, void * user_data) [static]

Enqueue single raw data vector into the device queue but the driver may or may not start processing until rte_cryptodev_raw_enqueue_done() is called.

Parameters

ctx The initialized raw data-path context data.
data_vec The buffer data vector.
n_data_vecs Number of buffer data vectors.
ofs Start and stop offsets for auth and cipher operations.
iv IV virtual and IOVA addresses
digest digest virtual and IOVA addresses
aad_or_auth_iv AAD or auth IV virtual and IOVA addresses, depends on the algorithm used.
user_data The user data.

Returns

  • 1: The data vector is enqueued successfully.
  • 0: The data vector is cached into the queue but is not processed until rte_cryptodev_raw_enqueue_done() is called.
  • negative integer: failure.

Definition at line 1695 of file rte_cryptodev.h.

Start processing all enqueued operations from last rte_cryptodev_configure_raw_dp_ctx() call.

Parameters

ctx The initialized raw data-path context data.
n The number of operations cached.

Returns

  • On success return 0.
  • On failure return negative integer.

Dequeue a burst of symmetric crypto processing.

Parameters

ctx The initialized raw data-path context data.
get_dequeue_count User provided callback function to obtain dequeue operation count.
max_nb_to_dequeue When get_dequeue_count is NULL this value is used to pass the maximum number of operations to be dequeued.
post_dequeue User provided callback function to post-process a dequeued operation.
out_user_data User data pointer array to be retrieve from device queue. In case of is_user_data_array is set there should be enough room to store all user data.
is_user_data_array Set 1 if every dequeued user data will be written into out_user_data array. Set 0 if only the first user data will be written into out_user_data array.
n_success Driver written value to specific the total successful operations count.
dequeue_status Driver written value to specify the dequeue status. Possible values:
  • 1: Successfully dequeued the number of operations returned. The user data previously set during enqueue is stored in the 'out_user_data'.
  • 0: The number of operations returned are completed and the user data is stored in the 'out_user_data', but they are not freed from the queue until rte_cryptodev_raw_dequeue_done() is called.
  • negative integer: Error occurred.

Returns

•
The number of operations dequeued or completed but not freed from the queue, depends on 'dequeue_status' value.

static __rte_experimental __rte_always_inline void * rte_cryptodev_raw_dequeue (struct rte_crypto_raw_dp_ctx * ctx, int * dequeue_status, enum rte_crypto_op_status * op_status) [static]

Dequeue a symmetric crypto processing.

Parameters

ctx The initialized raw data-path context data.
dequeue_status Driver written value to specify the dequeue status. Possible values:
  • 1: Successfully dequeued a operation. The user data is returned.
  • 0: The first operation in the queue is completed and the user data previously set during enqueue is returned, but it is not freed from the queue until rte_cryptodev_raw_dequeue_done() is called.
  • negative integer: Error occurred.

op_status Driver written value to specify operation status.

Returns

•
The user data pointer retrieved from device queue or NULL if no operation is ready for dequeue.

Definition at line 1795 of file rte_cryptodev.h.

Inform the queue pair dequeue operations is finished.

Parameters

ctx The initialized raw data-path context data.
n The number of operations.

Returns

  • On success return 0.
  • On failure return negative integer.

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)

Add a user callback for a given crypto device and queue pair which will be called on crypto ops enqueue.

This API configures a function to be called for each burst of crypto ops received on a given crypto device queue pair. The return value is a pointer that can be used later to remove the callback using rte_cryptodev_remove_enq_callback().

Callbacks registered by application would not survive rte_cryptodev_configure() as it reinitializes the callback list. It is user responsibility to remove all installed callbacks before calling rte_cryptodev_configure() to avoid possible memory leakage. Application is expected to call add API after rte_cryptodev_configure().

Multiple functions can be registered per queue pair & they are called in the order they were added. The API does not restrict on maximum number of callbacks.

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair on which ops are to be enqueued for processing. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
cb_fn The callback function
cb_arg A generic pointer parameter which will be passed to each invocation of the callback function on this crypto device and queue pair.

Returns

  • NULL on error & rte_errno will contain the error code.
  • On success, a pointer value which can later be used to remove the callback.

Remove a user callback function for given crypto device and queue pair.

This function is used to remove enqueue callbacks that were added to a crypto device queue pair using rte_cryptodev_add_enq_callback().

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair on which ops are to be enqueued. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
cb Pointer to user supplied callback created via rte_cryptodev_add_enq_callback().

Returns

  • 0: Success. Callback was removed.
  • <0: The dev_id or the qp_id is out of range, or the callback is NULL or not found for the crypto device queue pair.

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)

Add a user callback for a given crypto device and queue pair which will be called on crypto ops dequeue.

This API configures a function to be called for each burst of crypto ops received on a given crypto device queue pair. The return value is a pointer that can be used later to remove the callback using rte_cryptodev_remove_deq_callback().

Callbacks registered by application would not survive rte_cryptodev_configure() as it reinitializes the callback list. It is user responsibility to remove all installed callbacks before calling rte_cryptodev_configure() to avoid possible memory leakage. Application is expected to call add API after rte_cryptodev_configure().

Multiple functions can be registered per queue pair & they are called in the order they were added. The API does not restrict on maximum number of callbacks.

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair on which ops are to be dequeued. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
cb_fn The callback function
cb_arg A generic pointer parameter which will be passed to each invocation of the callback function on this crypto device and queue pair.

Returns

  • NULL on error & rte_errno will contain the error code.
  • On success, a pointer value which can later be used to remove the callback.

Remove a user callback function for given crypto device and queue pair.

This function is used to remove dequeue callbacks that were added to a crypto device queue pair using rte_cryptodev_add_deq_callback().

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair on which ops are to be dequeued. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
cb Pointer to user supplied callback created via rte_cryptodev_add_deq_callback().

Returns

  • 0: Success. Callback was removed.
  • <0: The dev_id or the qp_id is out of range, or the callback is NULL or not found for the crypto device queue pair.

Dequeue a burst of processed crypto operations from a queue on the crypto device. The dequeued operation are stored in rte_crypto_op structures whose pointers are supplied in the ops array.

The rte_cryptodev_dequeue_burst() function returns the number of ops actually dequeued, which is the number of rte_crypto_op data structures effectively supplied into the ops array.

A return value equal to nb_ops indicates that the queue contained at least nb_ops operations, and this is likely to signify that other processed operations remain in the devices output queue. Applications implementing a 'retrieve as many processed operations as possible' policy can check this specific case and keep invoking the rte_cryptodev_dequeue_burst() function until a value less than nb_ops is returned.

The rte_cryptodev_dequeue_burst() function does not provide any error notification to avoid the corresponding overhead.

Parameters

dev_id The symmetric crypto device identifier
qp_id The index of the queue pair from which to retrieve processed packets. The value must be in the range [0, nb_queue_pair - 1] previously supplied to rte_cryptodev_configure().
ops The address of an array of pointers to rte_crypto_op structures that must be large enough to store nb_ops pointers in it.
nb_ops The maximum number of operations to dequeue.

Returns

•
The number of operations actually dequeued, which is the number of pointers to rte_crypto_op structures effectively supplied to the ops array.

Definition at line 1992 of file rte_cryptodev.h.

Enqueue a burst of operations for processing on a crypto device.

The rte_cryptodev_enqueue_burst() function is invoked to place crypto operations on the queue qp_id of the device designated by its dev_id.

The nb_ops parameter is the number of operations to process which are supplied in the ops array of rte_crypto_op structures.

The rte_cryptodev_enqueue_burst() function returns the number of operations it actually enqueued for processing. A return value equal to nb_ops means that all packets have been enqueued.

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair which packets are to be enqueued for processing. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.
ops The address of an array of nb_ops pointers to rte_crypto_op structures which contain the crypto operations to be processed.
nb_ops The number of operations to process.

Returns

The number of operations actually enqueued on the crypto device. The return value can be less than the value of the nb_ops parameter when the crypto devices queue is full or if invalid parameters are specified in a rte_crypto_op.

Definition at line 2064 of file rte_cryptodev.h.

Warning

EXPERIMENTAL: this API may change, or be removed, without prior notice

Get the number of used descriptors or depth of a cryptodev queue pair.

This function retrieves the number of used descriptors in a crypto queue. Applications can use this API in the fast path to inspect QP occupancy and take appropriate action.

Since it is a fast-path function, no check is performed on dev_id and qp_id. Caller must therefore ensure that the device is enabled and queue pair is setup.

Parameters

dev_id The identifier of the device.
qp_id The index of the queue pair for which used descriptor count is to be retrieved. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_cryptodev_configure.

Returns

The number of used descriptors on the specified queue pair, or:
•
(-ENOTSUP) if the device does not support this function.

Definition at line 2127 of file rte_cryptodev.h.

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