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32 #ifndef _RTE_CRYPTODEV_H_
33 #define _RTE_CRYPTODEV_H_
36 * @file rte_cryptodev.h
38 * RTE Cryptographic Device APIs
40 * Defines RTE Crypto Device APIs for the provisioning of cipher and
41 * authentication operations.
48 #include "rte_kvargs.h"
49 #include "rte_crypto.h"
51 #include <rte_common.h>
54 extern const char **rte_cyptodev_names;
58 #define CDEV_LOG_ERR(...) \
59 RTE_LOG(ERR, CRYPTODEV, \
60 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
61 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
63 #define CDEV_PMD_LOG_ERR(dev, ...) \
64 RTE_LOG(ERR, CRYPTODEV, \
65 RTE_FMT("[%s] %s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
66 dev, __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
68 #ifdef RTE_LIBRTE_CRYPTODEV_DEBUG
69 #define CDEV_LOG_DEBUG(...) \
70 RTE_LOG(DEBUG, CRYPTODEV, \
71 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
72 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
74 #define CDEV_PMD_TRACE(...) \
75 RTE_LOG(DEBUG, CRYPTODEV, \
76 RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
77 dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))
80 #define CDEV_LOG_DEBUG(...) (void)0
81 #define CDEV_PMD_TRACE(...) (void)0
87 * A macro that points to an offset from the start
88 * of the crypto operation structure (rte_crypto_op)
90 * The returned pointer is cast to type t.
93 * The crypto operation.
95 * The offset from the start of the crypto operation.
97 * The type to cast the result into.
99 #define rte_crypto_op_ctod_offset(c, t, o) \
100 ((t)((char *)(c) + (o)))
103 * A macro that returns the physical address that points
104 * to an offset from the start of the crypto operation
108 * The crypto operation.
110 * The offset from the start of the crypto operation
111 * to calculate address from.
113 #define rte_crypto_op_ctophys_offset(c, o) \
114 (phys_addr_t)((c)->phys_addr + (o))
117 * Crypto parameters range description
119 struct rte_crypto_param_range {
120 uint16_t min; /**< minimum size */
121 uint16_t max; /**< maximum size */
123 /**< if a range of sizes are supported,
124 * this parameter is used to indicate
125 * increments in byte size that are supported
126 * between the minimum and maximum
131 * Symmetric Crypto Capability
133 struct rte_cryptodev_symmetric_capability {
134 enum rte_crypto_sym_xform_type xform_type;
135 /**< Transform type : Authentication / Cipher / AEAD */
139 enum rte_crypto_auth_algorithm algo;
140 /**< authentication algorithm */
142 /**< algorithm block size */
143 struct rte_crypto_param_range key_size;
144 /**< auth key size range */
145 struct rte_crypto_param_range digest_size;
146 /**< digest size range */
147 struct rte_crypto_param_range aad_size;
148 /**< Additional authentication data size range */
149 struct rte_crypto_param_range iv_size;
150 /**< Initialisation vector data size range */
152 /**< Symmetric Authentication transform capabilities */
154 enum rte_crypto_cipher_algorithm algo;
155 /**< cipher algorithm */
157 /**< algorithm block size */
158 struct rte_crypto_param_range key_size;
159 /**< cipher key size range */
160 struct rte_crypto_param_range iv_size;
161 /**< Initialisation vector data size range */
163 /**< Symmetric Cipher transform capabilities */
165 enum rte_crypto_aead_algorithm algo;
166 /**< AEAD algorithm */
168 /**< algorithm block size */
169 struct rte_crypto_param_range key_size;
170 /**< AEAD key size range */
171 struct rte_crypto_param_range digest_size;
172 /**< digest size range */
173 struct rte_crypto_param_range aad_size;
174 /**< Additional authentication data size range */
175 struct rte_crypto_param_range iv_size;
176 /**< Initialisation vector data size range */
181 /** Structure used to capture a capability of a crypto device */
182 struct rte_cryptodev_capabilities {
183 enum rte_crypto_op_type op;
184 /**< Operation type */
188 struct rte_cryptodev_symmetric_capability sym;
189 /**< Symmetric operation capability parameters */
193 /** Structure used to describe crypto algorithms */
194 struct rte_cryptodev_sym_capability_idx {
195 enum rte_crypto_sym_xform_type type;
197 enum rte_crypto_cipher_algorithm cipher;
198 enum rte_crypto_auth_algorithm auth;
199 enum rte_crypto_aead_algorithm aead;
204 * Provide capabilities available for defined device and algorithm
206 * @param dev_id The identifier of the device.
207 * @param idx Description of crypto algorithms.
210 * - Return description of the symmetric crypto capability if exist.
211 * - Return NULL if the capability not exist.
213 const struct rte_cryptodev_symmetric_capability *
214 rte_cryptodev_sym_capability_get(uint8_t dev_id,
215 const struct rte_cryptodev_sym_capability_idx *idx);
218 * Check if key size and initial vector are supported
219 * in crypto cipher capability
221 * @param capability Description of the symmetric crypto capability.
222 * @param key_size Cipher key size.
223 * @param iv_size Cipher initial vector size.
226 * - Return 0 if the parameters are in range of the capability.
227 * - Return -1 if the parameters are out of range of the capability.
230 rte_cryptodev_sym_capability_check_cipher(
231 const struct rte_cryptodev_symmetric_capability *capability,
232 uint16_t key_size, uint16_t iv_size);
235 * Check if key size and initial vector are supported
236 * in crypto auth capability
238 * @param capability Description of the symmetric crypto capability.
239 * @param key_size Auth key size.
240 * @param digest_size Auth digest size.
241 * @param aad_size Auth aad size.
242 * @param iv_size Auth initial vector size.
245 * - Return 0 if the parameters are in range of the capability.
246 * - Return -1 if the parameters are out of range of the capability.
249 rte_cryptodev_sym_capability_check_auth(
250 const struct rte_cryptodev_symmetric_capability *capability,
251 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
255 * Check if key, digest, AAD and initial vector sizes are supported
256 * in crypto AEAD capability
258 * @param capability Description of the symmetric crypto capability.
259 * @param key_size AEAD key size.
260 * @param digest_size AEAD digest size.
261 * @param aad_size AEAD AAD size.
262 * @param iv_size AEAD IV size.
265 * - Return 0 if the parameters are in range of the capability.
266 * - Return -1 if the parameters are out of range of the capability.
269 rte_cryptodev_sym_capability_check_aead(
270 const struct rte_cryptodev_symmetric_capability *capability,
271 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
275 * Provide the cipher algorithm enum, given an algorithm string
277 * @param algo_enum A pointer to the cipher algorithm
279 * @param algo_string Authentication algo string
282 * - Return -1 if string is not valid
283 * - Return 0 is the string is valid
286 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
287 const char *algo_string);
290 * Provide the authentication algorithm enum, given an algorithm string
292 * @param algo_enum A pointer to the authentication algorithm
294 * @param algo_string Authentication algo string
297 * - Return -1 if string is not valid
298 * - Return 0 is the string is valid
301 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
302 const char *algo_string);
305 * Provide the AEAD algorithm enum, given an algorithm string
307 * @param algo_enum A pointer to the AEAD algorithm
309 * @param algo_string AEAD algorithm string
312 * - Return -1 if string is not valid
313 * - Return 0 is the string is valid
316 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
317 const char *algo_string);
319 /** Macro used at end of crypto PMD list */
320 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
321 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
325 * Crypto device supported feature flags
328 * New features flags should be added to the end of the list
330 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
332 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
333 /**< Symmetric crypto operations are supported */
334 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
335 /**< Asymmetric crypto operations are supported */
336 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
337 /**< Chaining symmetric crypto operations are supported */
338 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
339 /**< Utilises CPU SIMD SSE instructions */
340 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
341 /**< Utilises CPU SIMD AVX instructions */
342 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
343 /**< Utilises CPU SIMD AVX2 instructions */
344 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
345 /**< Utilises CPU AES-NI instructions */
346 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
347 /**< Operations are off-loaded to an external hardware accelerator */
348 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
349 /**< Utilises CPU SIMD AVX512 instructions */
350 #define RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER (1ULL << 9)
351 /**< Scatter-gather mbufs are supported */
352 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 10)
353 /**< Utilises CPU NEON instructions */
354 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 11)
355 /**< Utilises ARM CPU Cryptographic Extensions */
359 * Get the name of a crypto device feature flag
361 * @param flag The mask describing the flag.
364 * The name of this flag, or NULL if it's not a valid feature flag.
368 rte_cryptodev_get_feature_name(uint64_t flag);
370 /** Crypto device information */
371 struct rte_cryptodev_info {
372 const char *driver_name; /**< Driver name. */
373 uint8_t driver_id; /**< Driver identifier */
374 struct rte_pci_device *pci_dev; /**< PCI information. */
376 uint64_t feature_flags; /**< Feature flags */
378 const struct rte_cryptodev_capabilities *capabilities;
379 /**< Array of devices supported capabilities */
381 unsigned max_nb_queue_pairs;
382 /**< Maximum number of queues pairs supported by device. */
385 unsigned max_nb_sessions;
386 /**< Maximum number of sessions supported by device. */
387 unsigned int max_nb_sessions_per_qp;
388 /**< Maximum number of sessions per queue pair.
389 * Default 0 for infinite sessions
394 #define RTE_CRYPTODEV_DETACHED (0)
395 #define RTE_CRYPTODEV_ATTACHED (1)
397 /** Definitions of Crypto device event types */
398 enum rte_cryptodev_event_type {
399 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
400 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
401 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
404 /** Crypto device queue pair configuration structure. */
405 struct rte_cryptodev_qp_conf {
406 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
410 * Typedef for application callback function to be registered by application
411 * software for notification of device events
413 * @param dev_id Crypto device identifier
414 * @param event Crypto device event to register for notification of.
415 * @param cb_arg User specified parameter to be passed as to passed to
416 * users callback function.
418 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
419 enum rte_cryptodev_event_type event, void *cb_arg);
422 /** Crypto Device statistics */
423 struct rte_cryptodev_stats {
424 uint64_t enqueued_count;
425 /**< Count of all operations enqueued */
426 uint64_t dequeued_count;
427 /**< Count of all operations dequeued */
429 uint64_t enqueue_err_count;
430 /**< Total error count on operations enqueued */
431 uint64_t dequeue_err_count;
432 /**< Total error count on operations dequeued */
435 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
436 /**< Max length of name of crypto PMD */
439 * Create a virtual crypto device
441 * @param name Cryptodev PMD name of device to be created.
442 * @param args Options arguments for device.
445 * - On successful creation of the cryptodev the device index is returned,
446 * which will be between 0 and rte_cryptodev_count().
447 * - In the case of a failure, returns -1.
450 rte_cryptodev_create_vdev(const char *name, const char *args);
453 * Get the device identifier for the named crypto device.
455 * @param name device name to select the device structure.
458 * - Returns crypto device identifier on success.
459 * - Return -1 on failure to find named crypto device.
462 rte_cryptodev_get_dev_id(const char *name);
465 * Get the total number of crypto devices that have been successfully
469 * - The total number of usable crypto devices.
472 rte_cryptodev_count(void);
475 * Get number of crypto device defined type.
477 * @param driver_id driver identifier.
480 * Returns number of crypto device.
483 rte_cryptodev_device_count_by_driver(uint8_t driver_id);
486 * Get number and identifiers of attached crypto devices that
487 * use the same crypto driver.
489 * @param driver_name driver name.
490 * @param devices output devices identifiers.
491 * @param nb_devices maximal number of devices.
494 * Returns number of attached crypto device.
497 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
500 * Return the NUMA socket to which a device is connected
503 * The identifier of the device
505 * The NUMA socket id to which the device is connected or
506 * a default of zero if the socket could not be determined.
507 * -1 if returned is the dev_id value is out of range.
510 rte_cryptodev_socket_id(uint8_t dev_id);
512 /** Crypto device configuration structure */
513 struct rte_cryptodev_config {
514 int socket_id; /**< Socket to allocate resources on */
515 uint16_t nb_queue_pairs;
516 /**< Number of queue pairs to configure on device */
519 uint32_t nb_objs; /**< Number of objects in mempool */
520 uint32_t cache_size; /**< l-core object cache size */
521 } session_mp; /**< Session mempool configuration */
525 * Configure a device.
527 * This function must be invoked first before any other function in the
528 * API. This function can also be re-invoked when a device is in the
531 * @param dev_id The identifier of the device to configure.
532 * @param config The crypto device configuration structure.
535 * - 0: Success, device configured.
536 * - <0: Error code returned by the driver configuration function.
539 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
544 * The device start step is the last one and consists of setting the configured
545 * offload features and in starting the transmit and the receive units of the
547 * On success, all basic functions exported by the API (link status,
548 * receive/transmit, and so on) can be invoked.
551 * The identifier of the device.
553 * - 0: Success, device started.
554 * - <0: Error code of the driver device start function.
557 rte_cryptodev_start(uint8_t dev_id);
560 * Stop an device. The device can be restarted with a call to
561 * rte_cryptodev_start()
563 * @param dev_id The identifier of the device.
566 rte_cryptodev_stop(uint8_t dev_id);
569 * Close an device. The device cannot be restarted!
571 * @param dev_id The identifier of the device.
574 * - 0 on successfully closing device
575 * - <0 on failure to close device
578 rte_cryptodev_close(uint8_t dev_id);
581 * Allocate and set up a receive queue pair for a device.
584 * @param dev_id The identifier of the device.
585 * @param queue_pair_id The index of the queue pairs to set up. The
586 * value must be in the range [0, nb_queue_pair
587 * - 1] previously supplied to
588 * rte_cryptodev_configure().
589 * @param qp_conf The pointer to the configuration data to be
590 * used for the queue pair. NULL value is
591 * allowed, in which case default configuration
593 * @param socket_id The *socket_id* argument is the socket
594 * identifier in case of NUMA. The value can be
595 * *SOCKET_ID_ANY* if there is no NUMA constraint
596 * for the DMA memory allocated for the receive
600 * - 0: Success, queue pair correctly set up.
601 * - <0: Queue pair configuration failed
604 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
605 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
608 * Start a specified queue pair of a device. It is used
609 * when deferred_start flag of the specified queue is true.
611 * @param dev_id The identifier of the device
612 * @param queue_pair_id The index of the queue pair to start. The value
613 * must be in the range [0, nb_queue_pair - 1]
614 * previously supplied to
615 * rte_crypto_dev_configure().
617 * - 0: Success, the transmit queue is correctly set up.
618 * - -EINVAL: The dev_id or the queue_id out of range.
619 * - -ENOTSUP: The function not supported in PMD driver.
622 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id);
625 * Stop specified queue pair of a device
627 * @param dev_id The identifier of the device
628 * @param queue_pair_id The index of the queue pair to stop. The value
629 * must be in the range [0, nb_queue_pair - 1]
630 * previously supplied to
631 * rte_cryptodev_configure().
633 * - 0: Success, the transmit queue is correctly set up.
634 * - -EINVAL: The dev_id or the queue_id out of range.
635 * - -ENOTSUP: The function not supported in PMD driver.
638 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id);
641 * Get the number of queue pairs on a specific crypto device
643 * @param dev_id Crypto device identifier.
645 * - The number of configured queue pairs.
648 rte_cryptodev_queue_pair_count(uint8_t dev_id);
652 * Retrieve the general I/O statistics of a device.
654 * @param dev_id The identifier of the device.
655 * @param stats A pointer to a structure of type
656 * *rte_cryptodev_stats* to be filled with the
657 * values of device counters.
659 * - Zero if successful.
660 * - Non-zero otherwise.
663 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
666 * Reset the general I/O statistics of a device.
668 * @param dev_id The identifier of the device.
671 rte_cryptodev_stats_reset(uint8_t dev_id);
674 * Retrieve the contextual information of a device.
676 * @param dev_id The identifier of the device.
677 * @param dev_info A pointer to a structure of type
678 * *rte_cryptodev_info* to be filled with the
679 * contextual information of the device.
682 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
686 * Register a callback function for specific device id.
688 * @param dev_id Device id.
689 * @param event Event interested.
690 * @param cb_fn User supplied callback function to be called.
691 * @param cb_arg Pointer to the parameters for the registered
695 * - On success, zero.
696 * - On failure, a negative value.
699 rte_cryptodev_callback_register(uint8_t dev_id,
700 enum rte_cryptodev_event_type event,
701 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
704 * Unregister a callback function for specific device id.
706 * @param dev_id The device identifier.
707 * @param event Event interested.
708 * @param cb_fn User supplied callback function to be called.
709 * @param cb_arg Pointer to the parameters for the registered
713 * - On success, zero.
714 * - On failure, a negative value.
717 rte_cryptodev_callback_unregister(uint8_t dev_id,
718 enum rte_cryptodev_event_type event,
719 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
722 typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
723 struct rte_crypto_op **ops, uint16_t nb_ops);
724 /**< Dequeue processed packets from queue pair of a device. */
726 typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
727 struct rte_crypto_op **ops, uint16_t nb_ops);
728 /**< Enqueue packets for processing on queue pair of a device. */
733 struct rte_cryptodev_callback;
735 /** Structure to keep track of registered callbacks */
736 TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
738 /** The data structure associated with each crypto device. */
739 struct rte_cryptodev {
740 dequeue_pkt_burst_t dequeue_burst;
741 /**< Pointer to PMD receive function. */
742 enqueue_pkt_burst_t enqueue_burst;
743 /**< Pointer to PMD transmit function. */
745 struct rte_cryptodev_data *data;
746 /**< Pointer to device data */
747 struct rte_cryptodev_ops *dev_ops;
748 /**< Functions exported by PMD */
749 uint64_t feature_flags;
750 /**< Supported features */
751 struct rte_device *device;
752 /**< Backing device */
755 /**< Crypto driver identifier*/
757 struct rte_cryptodev_cb_list link_intr_cbs;
758 /**< User application callback for interrupts if present */
761 uint8_t attached : 1;
762 /**< Flag indicating the device is attached */
763 } __rte_cache_aligned;
767 * The data part, with no function pointers, associated with each device.
769 * This structure is safe to place in shared memory to be common among
770 * different processes in a multi-process configuration.
772 struct rte_cryptodev_data {
774 /**< Device ID for this instance */
776 /**< Socket ID where memory is allocated */
777 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
778 /**< Unique identifier name */
781 uint8_t dev_started : 1;
782 /**< Device state: STARTED(1)/STOPPED(0) */
784 struct rte_mempool *session_pool;
785 /**< Session memory pool */
787 /**< Array of pointers to queue pairs. */
788 uint16_t nb_queue_pairs;
789 /**< Number of device queue pairs. */
792 /**< PMD-specific private data */
793 } __rte_cache_aligned;
795 extern struct rte_cryptodev *rte_cryptodevs;
798 * Dequeue a burst of processed crypto operations from a queue on the crypto
799 * device. The dequeued operation are stored in *rte_crypto_op* structures
800 * whose pointers are supplied in the *ops* array.
802 * The rte_cryptodev_dequeue_burst() function returns the number of ops
803 * actually dequeued, which is the number of *rte_crypto_op* data structures
804 * effectively supplied into the *ops* array.
806 * A return value equal to *nb_ops* indicates that the queue contained
807 * at least *nb_ops* operations, and this is likely to signify that other
808 * processed operations remain in the devices output queue. Applications
809 * implementing a "retrieve as many processed operations as possible" policy
810 * can check this specific case and keep invoking the
811 * rte_cryptodev_dequeue_burst() function until a value less than
812 * *nb_ops* is returned.
814 * The rte_cryptodev_dequeue_burst() function does not provide any error
815 * notification to avoid the corresponding overhead.
817 * @param dev_id The symmetric crypto device identifier
818 * @param qp_id The index of the queue pair from which to
819 * retrieve processed packets. The value must be
820 * in the range [0, nb_queue_pair - 1] previously
821 * supplied to rte_cryptodev_configure().
822 * @param ops The address of an array of pointers to
823 * *rte_crypto_op* structures that must be
824 * large enough to store *nb_ops* pointers in it.
825 * @param nb_ops The maximum number of operations to dequeue.
828 * - The number of operations actually dequeued, which is the number
829 * of pointers to *rte_crypto_op* structures effectively supplied to the
832 static inline uint16_t
833 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
834 struct rte_crypto_op **ops, uint16_t nb_ops)
836 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
838 nb_ops = (*dev->dequeue_burst)
839 (dev->data->queue_pairs[qp_id], ops, nb_ops);
845 * Enqueue a burst of operations for processing on a crypto device.
847 * The rte_cryptodev_enqueue_burst() function is invoked to place
848 * crypto operations on the queue *qp_id* of the device designated by
851 * The *nb_ops* parameter is the number of operations to process which are
852 * supplied in the *ops* array of *rte_crypto_op* structures.
854 * The rte_cryptodev_enqueue_burst() function returns the number of
855 * operations it actually enqueued for processing. A return value equal to
856 * *nb_ops* means that all packets have been enqueued.
858 * @param dev_id The identifier of the device.
859 * @param qp_id The index of the queue pair which packets are
860 * to be enqueued for processing. The value
861 * must be in the range [0, nb_queue_pairs - 1]
862 * previously supplied to
863 * *rte_cryptodev_configure*.
864 * @param ops The address of an array of *nb_ops* pointers
865 * to *rte_crypto_op* structures which contain
866 * the crypto operations to be processed.
867 * @param nb_ops The number of operations to process.
870 * The number of operations actually enqueued on the crypto device. The return
871 * value can be less than the value of the *nb_ops* parameter when the
872 * crypto devices queue is full or if invalid parameters are specified in
875 static inline uint16_t
876 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
877 struct rte_crypto_op **ops, uint16_t nb_ops)
879 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
881 return (*dev->enqueue_burst)(
882 dev->data->queue_pairs[qp_id], ops, nb_ops);
886 /** Cryptodev symmetric crypto session */
887 struct rte_cryptodev_sym_session {
893 /** Crypto driver identifier session created on */
894 struct rte_mempool *mp;
895 /**< Mempool session allocated from */
897 /**< Public symmetric session details */
899 __extension__ char _private[0];
900 /**< Private session material */
905 * Initialise a session for symmetric cryptographic operations.
907 * This function is used by the client to initialize immutable
908 * parameters of symmetric cryptographic operation.
909 * To perform the operation the rte_cryptodev_enqueue_burst function is
910 * used. Each mbuf should contain a reference to the session
911 * pointer returned from this function contained within it's crypto_op if a
912 * session-based operation is being provisioned. Memory to contain the session
913 * information is allocated from within mempool managed by the cryptodev.
915 * The rte_cryptodev_session_free must be called to free allocated
916 * memory when the session is no longer required.
918 * @param dev_id The device identifier.
919 * @param xform Crypto transform chain.
923 * Pointer to the created session or NULL
925 extern struct rte_cryptodev_sym_session *
926 rte_cryptodev_sym_session_create(uint8_t dev_id,
927 struct rte_crypto_sym_xform *xform);
930 * Free the memory associated with a previously allocated session.
932 * @param dev_id The device identifier.
933 * @param session Session pointer previously allocated by
934 * *rte_cryptodev_sym_session_create*.
937 * NULL on successful freeing of session.
938 * Session pointer on failure to free session.
940 extern struct rte_cryptodev_sym_session *
941 rte_cryptodev_sym_session_free(uint8_t dev_id,
942 struct rte_cryptodev_sym_session *session);
945 * Get the size of the private session data for a device.
947 * @param dev_id The device identifier.
950 * - Size of the private data, if successful
951 * - 0 if device is invalid or does not have private session
954 rte_cryptodev_get_private_session_size(uint8_t dev_id);
957 * Attach queue pair with sym session.
959 * @param qp_id Queue pair to which session will be attached.
960 * @param session Session pointer previously allocated by
961 * *rte_cryptodev_sym_session_create*.
964 * - On success, zero.
965 * - On failure, a negative value.
968 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
969 struct rte_cryptodev_sym_session *session);
972 * Detach queue pair with sym session.
974 * @param qp_id Queue pair to which session is attached.
975 * @param session Session pointer previously allocated by
976 * *rte_cryptodev_sym_session_create*.
979 * - On success, zero.
980 * - On failure, a negative value.
983 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
984 struct rte_cryptodev_sym_session *session);
987 * Provide driver identifier.
990 * The pointer to a driver name.
992 * The driver type identifier or -1 if no driver found
994 int rte_cryptodev_driver_id_get(const char *name);
997 * Provide driver name.
1000 * The driver identifier.
1002 * The driver name or null if no driver found
1004 const char *rte_cryptodev_driver_name_get(uint8_t driver_id);
1008 * Allocate Cryptodev driver.
1011 * Pointer to rte_driver.
1013 * The driver type identifier
1015 uint8_t rte_cryptodev_allocate_driver(const struct rte_driver *driver);
1018 #define RTE_PMD_REGISTER_CRYPTO_DRIVER(drv, driver_id)\
1019 RTE_INIT(init_ ##driver_id);\
1020 static void init_ ##driver_id(void)\
1022 driver_id = rte_cryptodev_allocate_driver(&(drv).driver);\
1030 #endif /* _RTE_CRYPTODEV_H_ */