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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 #define CRYPTODEV_NAME_NULL_PMD crypto_null
55 /**< Null crypto PMD device name */
56 #define CRYPTODEV_NAME_AESNI_MB_PMD crypto_aesni_mb
57 /**< AES-NI Multi buffer PMD device name */
58 #define CRYPTODEV_NAME_AESNI_GCM_PMD crypto_aesni_gcm
59 /**< AES-NI GCM PMD device name */
60 #define CRYPTODEV_NAME_OPENSSL_PMD crypto_openssl
61 /**< Open SSL Crypto PMD device name */
62 #define CRYPTODEV_NAME_QAT_SYM_PMD crypto_qat
63 /**< Intel QAT Symmetric Crypto PMD device name */
64 #define CRYPTODEV_NAME_SNOW3G_PMD crypto_snow3g
65 /**< SNOW 3G PMD device name */
66 #define CRYPTODEV_NAME_KASUMI_PMD crypto_kasumi
67 /**< KASUMI PMD device name */
68 #define CRYPTODEV_NAME_ZUC_PMD crypto_zuc
69 /**< KASUMI PMD device name */
70 #define CRYPTODEV_NAME_ARMV8_PMD crypto_armv8
71 /**< ARMv8 Crypto PMD device name */
72 #define CRYPTODEV_NAME_SCHEDULER_PMD crypto_scheduler
73 /**< Scheduler Crypto PMD device name */
74 #define CRYPTODEV_NAME_DPAA2_SEC_PMD cryptodev_dpaa2_sec_pmd
75 /**< NXP DPAA2 - SEC PMD device name */
77 /** Crypto device type */
78 enum rte_cryptodev_type {
79 RTE_CRYPTODEV_NULL_PMD = 1, /**< Null crypto PMD */
80 RTE_CRYPTODEV_AESNI_GCM_PMD, /**< AES-NI GCM PMD */
81 RTE_CRYPTODEV_AESNI_MB_PMD, /**< AES-NI multi buffer PMD */
82 RTE_CRYPTODEV_QAT_SYM_PMD, /**< QAT PMD Symmetric Crypto */
83 RTE_CRYPTODEV_SNOW3G_PMD, /**< SNOW 3G PMD */
84 RTE_CRYPTODEV_KASUMI_PMD, /**< KASUMI PMD */
85 RTE_CRYPTODEV_ZUC_PMD, /**< ZUC PMD */
86 RTE_CRYPTODEV_OPENSSL_PMD, /**< OpenSSL PMD */
87 RTE_CRYPTODEV_ARMV8_PMD, /**< ARMv8 crypto PMD */
88 RTE_CRYPTODEV_SCHEDULER_PMD, /**< Crypto Scheduler PMD */
89 RTE_CRYPTODEV_DPAA2_SEC_PMD, /**< NXP DPAA2 - SEC PMD */
92 extern const char **rte_cyptodev_names;
96 #define CDEV_LOG_ERR(...) \
97 RTE_LOG(ERR, CRYPTODEV, \
98 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
99 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
101 #define CDEV_PMD_LOG_ERR(dev, ...) \
102 RTE_LOG(ERR, CRYPTODEV, \
103 RTE_FMT("[%s] %s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
104 dev, __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
106 #ifdef RTE_LIBRTE_CRYPTODEV_DEBUG
107 #define CDEV_LOG_DEBUG(...) \
108 RTE_LOG(DEBUG, CRYPTODEV, \
109 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
110 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
112 #define CDEV_PMD_TRACE(...) \
113 RTE_LOG(DEBUG, CRYPTODEV, \
114 RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
115 dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))
118 #define CDEV_LOG_DEBUG(...) (void)0
119 #define CDEV_PMD_TRACE(...) (void)0
123 * Crypto parameters range description
125 struct rte_crypto_param_range {
126 uint16_t min; /**< minimum size */
127 uint16_t max; /**< maximum size */
129 /**< if a range of sizes are supported,
130 * this parameter is used to indicate
131 * increments in byte size that are supported
132 * between the minimum and maximum
137 * Symmetric Crypto Capability
139 struct rte_cryptodev_symmetric_capability {
140 enum rte_crypto_sym_xform_type xform_type;
141 /**< Transform type : Authentication / Cipher */
145 enum rte_crypto_auth_algorithm algo;
146 /**< authentication algorithm */
148 /**< algorithm block size */
149 struct rte_crypto_param_range key_size;
150 /**< auth key size range */
151 struct rte_crypto_param_range digest_size;
152 /**< digest size range */
153 struct rte_crypto_param_range aad_size;
154 /**< Additional authentication data size range */
156 /**< Symmetric Authentication transform capabilities */
158 enum rte_crypto_cipher_algorithm algo;
159 /**< cipher algorithm */
161 /**< algorithm block size */
162 struct rte_crypto_param_range key_size;
163 /**< cipher key size range */
164 struct rte_crypto_param_range iv_size;
165 /**< Initialisation vector data size range */
167 /**< Symmetric Cipher transform capabilities */
171 /** Structure used to capture a capability of a crypto device */
172 struct rte_cryptodev_capabilities {
173 enum rte_crypto_op_type op;
174 /**< Operation type */
178 struct rte_cryptodev_symmetric_capability sym;
179 /**< Symmetric operation capability parameters */
183 /** Structure used to describe crypto algorithms */
184 struct rte_cryptodev_sym_capability_idx {
185 enum rte_crypto_sym_xform_type type;
187 enum rte_crypto_cipher_algorithm cipher;
188 enum rte_crypto_auth_algorithm auth;
193 * Provide capabilities available for defined device and algorithm
195 * @param dev_id The identifier of the device.
196 * @param idx Description of crypto algorithms.
199 * - Return description of the symmetric crypto capability if exist.
200 * - Return NULL if the capability not exist.
202 const struct rte_cryptodev_symmetric_capability *
203 rte_cryptodev_sym_capability_get(uint8_t dev_id,
204 const struct rte_cryptodev_sym_capability_idx *idx);
207 * Check if key size and initial vector are supported
208 * in crypto cipher capability
210 * @param capability Description of the symmetric crypto capability.
211 * @param key_size Cipher key size.
212 * @param iv_size Cipher initial vector size.
215 * - Return 0 if the parameters are in range of the capability.
216 * - Return -1 if the parameters are out of range of the capability.
219 rte_cryptodev_sym_capability_check_cipher(
220 const struct rte_cryptodev_symmetric_capability *capability,
221 uint16_t key_size, uint16_t iv_size);
224 * Check if key size and initial vector are supported
225 * in crypto auth capability
227 * @param capability Description of the symmetric crypto capability.
228 * @param key_size Auth key size.
229 * @param digest_size Auth digest size.
230 * @param aad_size Auth aad size.
233 * - Return 0 if the parameters are in range of the capability.
234 * - Return -1 if the parameters are out of range of the capability.
237 rte_cryptodev_sym_capability_check_auth(
238 const struct rte_cryptodev_symmetric_capability *capability,
239 uint16_t key_size, uint16_t digest_size, uint16_t aad_size);
242 * Provide the cipher algorithm enum, given an algorithm string
244 * @param algo_enum A pointer to the cipher algorithm
246 * @param algo_string Authentication algo string
249 * - Return -1 if string is not valid
250 * - Return 0 is the string is valid
253 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
254 const char *algo_string);
257 * Provide the authentication algorithm enum, given an algorithm string
259 * @param algo_enum A pointer to the authentication algorithm
261 * @param algo_string Authentication algo string
264 * - Return -1 if string is not valid
265 * - Return 0 is the string is valid
268 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
269 const char *algo_string);
271 /** Macro used at end of crypto PMD list */
272 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
273 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
277 * Crypto device supported feature flags
280 * New features flags should be added to the end of the list
282 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
284 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
285 /**< Symmetric crypto operations are supported */
286 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
287 /**< Asymmetric crypto operations are supported */
288 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
289 /**< Chaining symmetric crypto operations are supported */
290 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
291 /**< Utilises CPU SIMD SSE instructions */
292 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
293 /**< Utilises CPU SIMD AVX instructions */
294 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
295 /**< Utilises CPU SIMD AVX2 instructions */
296 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
297 /**< Utilises CPU AES-NI instructions */
298 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
299 /**< Operations are off-loaded to an external hardware accelerator */
300 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
301 /**< Utilises CPU SIMD AVX512 instructions */
302 #define RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER (1ULL << 9)
303 /**< Scatter-gather mbufs are supported */
304 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 10)
305 /**< Utilises CPU NEON instructions */
306 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 11)
307 /**< Utilises ARM CPU Cryptographic Extensions */
311 * Get the name of a crypto device feature flag
313 * @param flag The mask describing the flag.
316 * The name of this flag, or NULL if it's not a valid feature flag.
320 rte_cryptodev_get_feature_name(uint64_t flag);
322 /** Crypto device information */
323 struct rte_cryptodev_info {
324 const char *driver_name; /**< Driver name. */
325 enum rte_cryptodev_type dev_type; /**< Device type */
326 struct rte_pci_device *pci_dev; /**< PCI information. */
328 uint64_t feature_flags; /**< Feature flags */
330 const struct rte_cryptodev_capabilities *capabilities;
331 /**< Array of devices supported capabilities */
333 unsigned max_nb_queue_pairs;
334 /**< Maximum number of queues pairs supported by device. */
337 unsigned max_nb_sessions;
338 /**< Maximum number of sessions supported by device. */
339 unsigned int max_nb_sessions_per_qp;
340 /**< Maximum number of sessions per queue pair.
341 * Default 0 for infinite sessions
346 #define RTE_CRYPTODEV_DETACHED (0)
347 #define RTE_CRYPTODEV_ATTACHED (1)
349 /** Definitions of Crypto device event types */
350 enum rte_cryptodev_event_type {
351 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
352 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
353 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
356 /** Crypto device queue pair configuration structure. */
357 struct rte_cryptodev_qp_conf {
358 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
362 * Typedef for application callback function to be registered by application
363 * software for notification of device events
365 * @param dev_id Crypto device identifier
366 * @param event Crypto device event to register for notification of.
367 * @param cb_arg User specified parameter to be passed as to passed to
368 * users callback function.
370 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
371 enum rte_cryptodev_event_type event, void *cb_arg);
374 /** Crypto Device statistics */
375 struct rte_cryptodev_stats {
376 uint64_t enqueued_count;
377 /**< Count of all operations enqueued */
378 uint64_t dequeued_count;
379 /**< Count of all operations dequeued */
381 uint64_t enqueue_err_count;
382 /**< Total error count on operations enqueued */
383 uint64_t dequeue_err_count;
384 /**< Total error count on operations dequeued */
387 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
388 /**< Max length of name of crypto PMD */
391 * Create a virtual crypto device
393 * @param name Cryptodev PMD name of device to be created.
394 * @param args Options arguments for device.
397 * - On successful creation of the cryptodev the device index is returned,
398 * which will be between 0 and rte_cryptodev_count().
399 * - In the case of a failure, returns -1.
402 rte_cryptodev_create_vdev(const char *name, const char *args);
405 * Get the device identifier for the named crypto device.
407 * @param name device name to select the device structure.
410 * - Returns crypto device identifier on success.
411 * - Return -1 on failure to find named crypto device.
414 rte_cryptodev_get_dev_id(const char *name);
417 * Get the total number of crypto devices that have been successfully
421 * - The total number of usable crypto devices.
424 rte_cryptodev_count(void);
427 * Get number of crypto device defined type.
429 * @param type type of device.
432 * Returns number of crypto device.
435 rte_cryptodev_count_devtype(enum rte_cryptodev_type type);
438 * Get number and identifiers of attached crypto devices that
439 * use the same crypto driver.
441 * @param driver_name driver name.
442 * @param devices output devices identifiers.
443 * @param nb_devices maximal number of devices.
446 * Returns number of attached crypto device.
449 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
452 * Return the NUMA socket to which a device is connected
455 * The identifier of the device
457 * The NUMA socket id to which the device is connected or
458 * a default of zero if the socket could not be determined.
459 * -1 if returned is the dev_id value is out of range.
462 rte_cryptodev_socket_id(uint8_t dev_id);
464 /** Crypto device configuration structure */
465 struct rte_cryptodev_config {
466 int socket_id; /**< Socket to allocate resources on */
467 uint16_t nb_queue_pairs;
468 /**< Number of queue pairs to configure on device */
471 uint32_t nb_objs; /**< Number of objects in mempool */
472 uint32_t cache_size; /**< l-core object cache size */
473 } session_mp; /**< Session mempool configuration */
477 * Configure a device.
479 * This function must be invoked first before any other function in the
480 * API. This function can also be re-invoked when a device is in the
483 * @param dev_id The identifier of the device to configure.
484 * @param config The crypto device configuration structure.
487 * - 0: Success, device configured.
488 * - <0: Error code returned by the driver configuration function.
491 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
496 * The device start step is the last one and consists of setting the configured
497 * offload features and in starting the transmit and the receive units of the
499 * On success, all basic functions exported by the API (link status,
500 * receive/transmit, and so on) can be invoked.
503 * The identifier of the device.
505 * - 0: Success, device started.
506 * - <0: Error code of the driver device start function.
509 rte_cryptodev_start(uint8_t dev_id);
512 * Stop an device. The device can be restarted with a call to
513 * rte_cryptodev_start()
515 * @param dev_id The identifier of the device.
518 rte_cryptodev_stop(uint8_t dev_id);
521 * Close an device. The device cannot be restarted!
523 * @param dev_id The identifier of the device.
526 * - 0 on successfully closing device
527 * - <0 on failure to close device
530 rte_cryptodev_close(uint8_t dev_id);
533 * Allocate and set up a receive queue pair for a device.
536 * @param dev_id The identifier of the device.
537 * @param queue_pair_id The index of the queue pairs to set up. The
538 * value must be in the range [0, nb_queue_pair
539 * - 1] previously supplied to
540 * rte_cryptodev_configure().
541 * @param qp_conf The pointer to the configuration data to be
542 * used for the queue pair. NULL value is
543 * allowed, in which case default configuration
545 * @param socket_id The *socket_id* argument is the socket
546 * identifier in case of NUMA. The value can be
547 * *SOCKET_ID_ANY* if there is no NUMA constraint
548 * for the DMA memory allocated for the receive
552 * - 0: Success, queue pair correctly set up.
553 * - <0: Queue pair configuration failed
556 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
557 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
560 * Start a specified queue pair of a device. It is used
561 * when deferred_start flag of the specified queue is true.
563 * @param dev_id The identifier of the device
564 * @param queue_pair_id The index of the queue pair to start. The value
565 * must be in the range [0, nb_queue_pair - 1]
566 * previously supplied to
567 * rte_crypto_dev_configure().
569 * - 0: Success, the transmit queue is correctly set up.
570 * - -EINVAL: The dev_id or the queue_id out of range.
571 * - -ENOTSUP: The function not supported in PMD driver.
574 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id);
577 * Stop specified queue pair of a device
579 * @param dev_id The identifier of the device
580 * @param queue_pair_id The index of the queue pair to stop. The value
581 * must be in the range [0, nb_queue_pair - 1]
582 * previously supplied to
583 * rte_cryptodev_configure().
585 * - 0: Success, the transmit queue is correctly set up.
586 * - -EINVAL: The dev_id or the queue_id out of range.
587 * - -ENOTSUP: The function not supported in PMD driver.
590 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id);
593 * Get the number of queue pairs on a specific crypto device
595 * @param dev_id Crypto device identifier.
597 * - The number of configured queue pairs.
600 rte_cryptodev_queue_pair_count(uint8_t dev_id);
604 * Retrieve the general I/O statistics of a device.
606 * @param dev_id The identifier of the device.
607 * @param stats A pointer to a structure of type
608 * *rte_cryptodev_stats* to be filled with the
609 * values of device counters.
611 * - Zero if successful.
612 * - Non-zero otherwise.
615 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
618 * Reset the general I/O statistics of a device.
620 * @param dev_id The identifier of the device.
623 rte_cryptodev_stats_reset(uint8_t dev_id);
626 * Retrieve the contextual information of a device.
628 * @param dev_id The identifier of the device.
629 * @param dev_info A pointer to a structure of type
630 * *rte_cryptodev_info* to be filled with the
631 * contextual information of the device.
634 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
638 * Register a callback function for specific device id.
640 * @param dev_id Device id.
641 * @param event Event interested.
642 * @param cb_fn User supplied callback function to be called.
643 * @param cb_arg Pointer to the parameters for the registered
647 * - On success, zero.
648 * - On failure, a negative value.
651 rte_cryptodev_callback_register(uint8_t dev_id,
652 enum rte_cryptodev_event_type event,
653 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
656 * Unregister a callback function for specific device id.
658 * @param dev_id The device identifier.
659 * @param event Event interested.
660 * @param cb_fn User supplied callback function to be called.
661 * @param cb_arg Pointer to the parameters for the registered
665 * - On success, zero.
666 * - On failure, a negative value.
669 rte_cryptodev_callback_unregister(uint8_t dev_id,
670 enum rte_cryptodev_event_type event,
671 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
674 typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
675 struct rte_crypto_op **ops, uint16_t nb_ops);
676 /**< Dequeue processed packets from queue pair of a device. */
678 typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
679 struct rte_crypto_op **ops, uint16_t nb_ops);
680 /**< Enqueue packets for processing on queue pair of a device. */
685 struct rte_cryptodev_callback;
687 /** Structure to keep track of registered callbacks */
688 TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
690 /** The data structure associated with each crypto device. */
691 struct rte_cryptodev {
692 dequeue_pkt_burst_t dequeue_burst;
693 /**< Pointer to PMD receive function. */
694 enqueue_pkt_burst_t enqueue_burst;
695 /**< Pointer to PMD transmit function. */
697 struct rte_cryptodev_data *data;
698 /**< Pointer to device data */
699 struct rte_cryptodev_ops *dev_ops;
700 /**< Functions exported by PMD */
701 uint64_t feature_flags;
702 /**< Supported features */
703 struct rte_device *device;
704 /**< Backing device */
706 enum rte_cryptodev_type dev_type;
707 /**< Crypto device type */
709 struct rte_cryptodev_cb_list link_intr_cbs;
710 /**< User application callback for interrupts if present */
713 uint8_t attached : 1;
714 /**< Flag indicating the device is attached */
715 } __rte_cache_aligned;
719 * The data part, with no function pointers, associated with each device.
721 * This structure is safe to place in shared memory to be common among
722 * different processes in a multi-process configuration.
724 struct rte_cryptodev_data {
726 /**< Device ID for this instance */
728 /**< Socket ID where memory is allocated */
729 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
730 /**< Unique identifier name */
733 uint8_t dev_started : 1;
734 /**< Device state: STARTED(1)/STOPPED(0) */
736 struct rte_mempool *session_pool;
737 /**< Session memory pool */
739 /**< Array of pointers to queue pairs. */
740 uint16_t nb_queue_pairs;
741 /**< Number of device queue pairs. */
744 /**< PMD-specific private data */
745 } __rte_cache_aligned;
747 extern struct rte_cryptodev *rte_cryptodevs;
750 * Dequeue a burst of processed crypto operations from a queue on the crypto
751 * device. The dequeued operation are stored in *rte_crypto_op* structures
752 * whose pointers are supplied in the *ops* array.
754 * The rte_cryptodev_dequeue_burst() function returns the number of ops
755 * actually dequeued, which is the number of *rte_crypto_op* data structures
756 * effectively supplied into the *ops* array.
758 * A return value equal to *nb_ops* indicates that the queue contained
759 * at least *nb_ops* operations, and this is likely to signify that other
760 * processed operations remain in the devices output queue. Applications
761 * implementing a "retrieve as many processed operations as possible" policy
762 * can check this specific case and keep invoking the
763 * rte_cryptodev_dequeue_burst() function until a value less than
764 * *nb_ops* is returned.
766 * The rte_cryptodev_dequeue_burst() function does not provide any error
767 * notification to avoid the corresponding overhead.
769 * @param dev_id The symmetric crypto device identifier
770 * @param qp_id The index of the queue pair from which to
771 * retrieve processed packets. The value must be
772 * in the range [0, nb_queue_pair - 1] previously
773 * supplied to rte_cryptodev_configure().
774 * @param ops The address of an array of pointers to
775 * *rte_crypto_op* structures that must be
776 * large enough to store *nb_ops* pointers in it.
777 * @param nb_ops The maximum number of operations to dequeue.
780 * - The number of operations actually dequeued, which is the number
781 * of pointers to *rte_crypto_op* structures effectively supplied to the
784 static inline uint16_t
785 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
786 struct rte_crypto_op **ops, uint16_t nb_ops)
788 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
790 nb_ops = (*dev->dequeue_burst)
791 (dev->data->queue_pairs[qp_id], ops, nb_ops);
797 * Enqueue a burst of operations for processing on a crypto device.
799 * The rte_cryptodev_enqueue_burst() function is invoked to place
800 * crypto operations on the queue *qp_id* of the device designated by
803 * The *nb_ops* parameter is the number of operations to process which are
804 * supplied in the *ops* array of *rte_crypto_op* structures.
806 * The rte_cryptodev_enqueue_burst() function returns the number of
807 * operations it actually enqueued for processing. A return value equal to
808 * *nb_ops* means that all packets have been enqueued.
810 * @param dev_id The identifier of the device.
811 * @param qp_id The index of the queue pair which packets are
812 * to be enqueued for processing. The value
813 * must be in the range [0, nb_queue_pairs - 1]
814 * previously supplied to
815 * *rte_cryptodev_configure*.
816 * @param ops The address of an array of *nb_ops* pointers
817 * to *rte_crypto_op* structures which contain
818 * the crypto operations to be processed.
819 * @param nb_ops The number of operations to process.
822 * The number of operations actually enqueued on the crypto device. The return
823 * value can be less than the value of the *nb_ops* parameter when the
824 * crypto devices queue is full or if invalid parameters are specified in
827 static inline uint16_t
828 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
829 struct rte_crypto_op **ops, uint16_t nb_ops)
831 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
833 return (*dev->enqueue_burst)(
834 dev->data->queue_pairs[qp_id], ops, nb_ops);
838 /** Cryptodev symmetric crypto session */
839 struct rte_cryptodev_sym_session {
844 enum rte_cryptodev_type dev_type;
845 /** Crypto Device type session created on */
846 struct rte_mempool *mp;
847 /**< Mempool session allocated from */
849 /**< Public symmetric session details */
851 __extension__ char _private[0];
852 /**< Private session material */
857 * Initialise a session for symmetric cryptographic operations.
859 * This function is used by the client to initialize immutable
860 * parameters of symmetric cryptographic operation.
861 * To perform the operation the rte_cryptodev_enqueue_burst function is
862 * used. Each mbuf should contain a reference to the session
863 * pointer returned from this function contained within it's crypto_op if a
864 * session-based operation is being provisioned. Memory to contain the session
865 * information is allocated from within mempool managed by the cryptodev.
867 * The rte_cryptodev_session_free must be called to free allocated
868 * memory when the session is no longer required.
870 * @param dev_id The device identifier.
871 * @param xform Crypto transform chain.
875 * Pointer to the created session or NULL
877 extern struct rte_cryptodev_sym_session *
878 rte_cryptodev_sym_session_create(uint8_t dev_id,
879 struct rte_crypto_sym_xform *xform);
882 * Free the memory associated with a previously allocated session.
884 * @param dev_id The device identifier.
885 * @param session Session pointer previously allocated by
886 * *rte_cryptodev_sym_session_create*.
889 * NULL on successful freeing of session.
890 * Session pointer on failure to free session.
892 extern struct rte_cryptodev_sym_session *
893 rte_cryptodev_sym_session_free(uint8_t dev_id,
894 struct rte_cryptodev_sym_session *session);
897 * Attach queue pair with sym session.
899 * @param qp_id Queue pair to which session will be attached.
900 * @param session Session pointer previously allocated by
901 * *rte_cryptodev_sym_session_create*.
904 * - On success, zero.
905 * - On failure, a negative value.
908 rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id,
909 struct rte_cryptodev_sym_session *session);
912 * Detach queue pair with sym session.
914 * @param qp_id Queue pair to which session is attached.
915 * @param session Session pointer previously allocated by
916 * *rte_cryptodev_sym_session_create*.
919 * - On success, zero.
920 * - On failure, a negative value.
923 rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id,
924 struct rte_cryptodev_sym_session *session);
931 #endif /* _RTE_CRYPTODEV_H_ */