3 * Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
15 * * Neither the name of Intel Corporation nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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>
53 #define CRYPTODEV_NAME_NULL_PMD crypto_null
54 /**< Null crypto PMD device name */
55 #define CRYPTODEV_NAME_AESNI_MB_PMD crypto_aesni_mb
56 /**< AES-NI Multi buffer PMD device name */
57 #define CRYPTODEV_NAME_AESNI_GCM_PMD crypto_aesni_gcm
58 /**< AES-NI GCM PMD device name */
59 #define CRYPTODEV_NAME_OPENSSL_PMD crypto_openssl
60 /**< Open SSL Crypto PMD device name */
61 #define CRYPTODEV_NAME_QAT_SYM_PMD crypto_qat
62 /**< Intel QAT Symmetric Crypto PMD device name */
63 #define CRYPTODEV_NAME_SNOW3G_PMD crypto_snow3g
64 /**< SNOW 3G PMD device name */
65 #define CRYPTODEV_NAME_KASUMI_PMD crypto_kasumi
66 /**< KASUMI PMD device name */
67 #define CRYPTODEV_NAME_ZUC_PMD crypto_zuc
68 /**< KASUMI PMD device name */
69 #define CRYPTODEV_NAME_ARMV8_PMD crypto_armv8
70 /**< ARMv8 Crypto PMD device name */
71 #define CRYPTODEV_NAME_SCHEDULER_PMD crypto_scheduler
72 /**< Scheduler Crypto PMD device name */
74 /** Crypto device type */
75 enum rte_cryptodev_type {
76 RTE_CRYPTODEV_NULL_PMD = 1, /**< Null crypto PMD */
77 RTE_CRYPTODEV_AESNI_GCM_PMD, /**< AES-NI GCM PMD */
78 RTE_CRYPTODEV_AESNI_MB_PMD, /**< AES-NI multi buffer PMD */
79 RTE_CRYPTODEV_QAT_SYM_PMD, /**< QAT PMD Symmetric Crypto */
80 RTE_CRYPTODEV_SNOW3G_PMD, /**< SNOW 3G PMD */
81 RTE_CRYPTODEV_KASUMI_PMD, /**< KASUMI PMD */
82 RTE_CRYPTODEV_ZUC_PMD, /**< ZUC PMD */
83 RTE_CRYPTODEV_OPENSSL_PMD, /**< OpenSSL PMD */
84 RTE_CRYPTODEV_ARMV8_PMD, /**< ARMv8 crypto PMD */
85 RTE_CRYPTODEV_SCHEDULER_PMD, /**< Crypto Scheduler PMD */
88 extern const char **rte_cyptodev_names;
92 #define CDEV_LOG_ERR(...) \
93 RTE_LOG(ERR, CRYPTODEV, \
94 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
95 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
97 #define CDEV_PMD_LOG_ERR(dev, ...) \
98 RTE_LOG(ERR, CRYPTODEV, \
99 RTE_FMT("[%s] %s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
100 dev, __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
102 #ifdef RTE_LIBRTE_CRYPTODEV_DEBUG
103 #define CDEV_LOG_DEBUG(...) \
104 RTE_LOG(DEBUG, CRYPTODEV, \
105 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
106 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
108 #define CDEV_PMD_TRACE(...) \
109 RTE_LOG(DEBUG, CRYPTODEV, \
110 RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
111 dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))
114 #define CDEV_LOG_DEBUG(...) (void)0
115 #define CDEV_PMD_TRACE(...) (void)0
119 * Symmetric Crypto Capability
121 struct rte_cryptodev_symmetric_capability {
122 enum rte_crypto_sym_xform_type xform_type;
123 /**< Transform type : Authentication / Cipher */
127 enum rte_crypto_auth_algorithm algo;
128 /**< authentication algorithm */
130 /**< algorithm block size */
132 uint16_t min; /**< minimum key size */
133 uint16_t max; /**< maximum key size */
135 /**< if a range of sizes are supported,
136 * this parameter is used to indicate
137 * increments in byte size that are supported
138 * between the minimum and maximum */
140 /**< auth key size range */
142 uint16_t min; /**< minimum digest size */
143 uint16_t max; /**< maximum digest size */
145 /**< if a range of sizes are supported,
146 * this parameter is used to indicate
147 * increments in byte size that are supported
148 * between the minimum and maximum */
150 /**< digest size range */
152 uint16_t min; /**< minimum aad size */
153 uint16_t max; /**< maximum aad size */
155 /**< if a range of sizes are supported,
156 * this parameter is used to indicate
157 * increments in byte size that are supported
158 * between the minimum and maximum */
160 /**< Additional authentication data size range */
162 /**< Symmetric Authentication transform capabilities */
164 enum rte_crypto_cipher_algorithm algo;
165 /**< cipher algorithm */
167 /**< algorithm block size */
169 uint16_t min; /**< minimum key size */
170 uint16_t max; /**< maximum key size */
172 /**< if a range of sizes are supported,
173 * this parameter is used to indicate
174 * increments in byte size that are supported
175 * between the minimum and maximum */
177 /**< cipher key size range */
179 uint16_t min; /**< minimum iv size */
180 uint16_t max; /**< maximum iv size */
182 /**< if a range of sizes are supported,
183 * this parameter is used to indicate
184 * increments in byte size that are supported
185 * between the minimum and maximum */
187 /**< Initialisation vector data size range */
189 /**< Symmetric Cipher transform capabilities */
193 /** Structure used to capture a capability of a crypto device */
194 struct rte_cryptodev_capabilities {
195 enum rte_crypto_op_type op;
196 /**< Operation type */
200 struct rte_cryptodev_symmetric_capability sym;
201 /**< Symmetric operation capability parameters */
205 /** Macro used at end of crypto PMD list */
206 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
207 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
211 * Crypto device supported feature flags
214 * New features flags should be added to the end of the list
216 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
218 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
219 /**< Symmetric crypto operations are supported */
220 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
221 /**< Asymmetric crypto operations are supported */
222 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
223 /**< Chaining symmetric crypto operations are supported */
224 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
225 /**< Utilises CPU SIMD SSE instructions */
226 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
227 /**< Utilises CPU SIMD AVX instructions */
228 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
229 /**< Utilises CPU SIMD AVX2 instructions */
230 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
231 /**< Utilises CPU AES-NI instructions */
232 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
233 /**< Operations are off-loaded to an external hardware accelerator */
234 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
235 /**< Utilises CPU SIMD AVX512 instructions */
236 #define RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER (1ULL << 9)
237 /**< Scatter-gather mbufs are supported */
238 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 10)
239 /**< Utilises CPU NEON instructions */
240 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 11)
241 /**< Utilises ARM CPU Cryptographic Extensions */
246 * Get the name of a crypto device feature flag
248 * @param flag The mask describing the flag.
251 * The name of this flag, or NULL if it's not a valid feature flag.
255 rte_cryptodev_get_feature_name(uint64_t flag);
257 /** Crypto device information */
258 struct rte_cryptodev_info {
259 const char *driver_name; /**< Driver name. */
260 enum rte_cryptodev_type dev_type; /**< Device type */
261 struct rte_pci_device *pci_dev; /**< PCI information. */
263 uint64_t feature_flags; /**< Feature flags */
265 const struct rte_cryptodev_capabilities *capabilities;
266 /**< Array of devices supported capabilities */
268 unsigned max_nb_queue_pairs;
269 /**< Maximum number of queues pairs supported by device. */
272 unsigned max_nb_sessions;
273 /**< Maximum number of sessions supported by device. */
277 #define RTE_CRYPTODEV_DETACHED (0)
278 #define RTE_CRYPTODEV_ATTACHED (1)
280 /** Definitions of Crypto device event types */
281 enum rte_cryptodev_event_type {
282 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
283 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
284 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
287 /** Crypto device queue pair configuration structure. */
288 struct rte_cryptodev_qp_conf {
289 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
293 * Typedef for application callback function to be registered by application
294 * software for notification of device events
296 * @param dev_id Crypto device identifier
297 * @param event Crypto device event to register for notification of.
298 * @param cb_arg User specified parameter to be passed as to passed to
299 * users callback function.
301 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
302 enum rte_cryptodev_event_type event, void *cb_arg);
305 /** Crypto Device statistics */
306 struct rte_cryptodev_stats {
307 uint64_t enqueued_count;
308 /**< Count of all operations enqueued */
309 uint64_t dequeued_count;
310 /**< Count of all operations dequeued */
312 uint64_t enqueue_err_count;
313 /**< Total error count on operations enqueued */
314 uint64_t dequeue_err_count;
315 /**< Total error count on operations dequeued */
318 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
319 /**< Max length of name of crypto PMD */
320 #define RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS 8
321 #define RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS 2048
325 * Initialisation parameters for virtual crypto devices
327 struct rte_crypto_vdev_init_params {
328 unsigned max_nb_queue_pairs;
329 unsigned max_nb_sessions;
331 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
335 * Parse virtual device initialisation parameters input arguments
338 * @params params Initialisation parameters with defaults set.
339 * @params input_args Command line arguments
342 * 0 on successful parse
343 * <0 on failure to parse
346 rte_cryptodev_parse_vdev_init_params(
347 struct rte_crypto_vdev_init_params *params,
348 const char *input_args);
351 * Create a virtual crypto device
353 * @param name Cryptodev PMD name of device to be created.
354 * @param args Options arguments for device.
357 * - On successful creation of the cryptodev the device index is returned,
358 * which will be between 0 and rte_cryptodev_count().
359 * - In the case of a failure, returns -1.
362 rte_cryptodev_create_vdev(const char *name, const char *args);
365 * Get the device identifier for the named crypto device.
367 * @param name device name to select the device structure.
370 * - Returns crypto device identifier on success.
371 * - Return -1 on failure to find named crypto device.
374 rte_cryptodev_get_dev_id(const char *name);
377 * Get the total number of crypto devices that have been successfully
381 * - The total number of usable crypto devices.
384 rte_cryptodev_count(void);
387 rte_cryptodev_count_devtype(enum rte_cryptodev_type type);
389 * Return the NUMA socket to which a device is connected
392 * The identifier of the device
394 * The NUMA socket id to which the device is connected or
395 * a default of zero if the socket could not be determined.
396 * -1 if returned is the dev_id value is out of range.
399 rte_cryptodev_socket_id(uint8_t dev_id);
401 /** Crypto device configuration structure */
402 struct rte_cryptodev_config {
403 int socket_id; /**< Socket to allocate resources on */
404 uint16_t nb_queue_pairs;
405 /**< Number of queue pairs to configure on device */
408 uint32_t nb_objs; /**< Number of objects in mempool */
409 uint32_t cache_size; /**< l-core object cache size */
410 } session_mp; /**< Session mempool configuration */
414 * Configure a device.
416 * This function must be invoked first before any other function in the
417 * API. This function can also be re-invoked when a device is in the
420 * @param dev_id The identifier of the device to configure.
421 * @param config The crypto device configuration structure.
424 * - 0: Success, device configured.
425 * - <0: Error code returned by the driver configuration function.
428 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
433 * The device start step is the last one and consists of setting the configured
434 * offload features and in starting the transmit and the receive units of the
436 * On success, all basic functions exported by the API (link status,
437 * receive/transmit, and so on) can be invoked.
440 * The identifier of the device.
442 * - 0: Success, device started.
443 * - <0: Error code of the driver device start function.
446 rte_cryptodev_start(uint8_t dev_id);
449 * Stop an device. The device can be restarted with a call to
450 * rte_cryptodev_start()
452 * @param dev_id The identifier of the device.
455 rte_cryptodev_stop(uint8_t dev_id);
458 * Close an device. The device cannot be restarted!
460 * @param dev_id The identifier of the device.
463 * - 0 on successfully closing device
464 * - <0 on failure to close device
467 rte_cryptodev_close(uint8_t dev_id);
470 * Allocate and set up a receive queue pair for a device.
473 * @param dev_id The identifier of the device.
474 * @param queue_pair_id The index of the queue pairs to set up. The
475 * value must be in the range [0, nb_queue_pair
476 * - 1] previously supplied to
477 * rte_cryptodev_configure().
478 * @param qp_conf The pointer to the configuration data to be
479 * used for the queue pair. NULL value is
480 * allowed, in which case default configuration
482 * @param socket_id The *socket_id* argument is the socket
483 * identifier in case of NUMA. The value can be
484 * *SOCKET_ID_ANY* if there is no NUMA constraint
485 * for the DMA memory allocated for the receive
489 * - 0: Success, queue pair correctly set up.
490 * - <0: Queue pair configuration failed
493 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
494 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
497 * Start a specified queue pair of a device. It is used
498 * when deferred_start flag of the specified queue is true.
500 * @param dev_id The identifier of the device
501 * @param queue_pair_id The index of the queue pair to start. The value
502 * must be in the range [0, nb_queue_pair - 1]
503 * previously supplied to
504 * rte_crypto_dev_configure().
506 * - 0: Success, the transmit queue is correctly set up.
507 * - -EINVAL: The dev_id or the queue_id out of range.
508 * - -ENOTSUP: The function not supported in PMD driver.
511 rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id);
514 * Stop specified queue pair of a device
516 * @param dev_id The identifier of the device
517 * @param queue_pair_id The index of the queue pair to stop. The value
518 * must be in the range [0, nb_queue_pair - 1]
519 * previously supplied to
520 * rte_cryptodev_configure().
522 * - 0: Success, the transmit queue is correctly set up.
523 * - -EINVAL: The dev_id or the queue_id out of range.
524 * - -ENOTSUP: The function not supported in PMD driver.
527 rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id);
530 * Get the number of queue pairs on a specific crypto device
532 * @param dev_id Crypto device identifier.
534 * - The number of configured queue pairs.
537 rte_cryptodev_queue_pair_count(uint8_t dev_id);
541 * Retrieve the general I/O statistics of a device.
543 * @param dev_id The identifier of the device.
544 * @param stats A pointer to a structure of type
545 * *rte_cryptodev_stats* to be filled with the
546 * values of device counters.
548 * - Zero if successful.
549 * - Non-zero otherwise.
552 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
555 * Reset the general I/O statistics of a device.
557 * @param dev_id The identifier of the device.
560 rte_cryptodev_stats_reset(uint8_t dev_id);
563 * Retrieve the contextual information of a device.
565 * @param dev_id The identifier of the device.
566 * @param dev_info A pointer to a structure of type
567 * *rte_cryptodev_info* to be filled with the
568 * contextual information of the device.
571 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
575 * Register a callback function for specific device id.
577 * @param dev_id Device id.
578 * @param event Event interested.
579 * @param cb_fn User supplied callback function to be called.
580 * @param cb_arg Pointer to the parameters for the registered
584 * - On success, zero.
585 * - On failure, a negative value.
588 rte_cryptodev_callback_register(uint8_t dev_id,
589 enum rte_cryptodev_event_type event,
590 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
593 * Unregister a callback function for specific device id.
595 * @param dev_id The device identifier.
596 * @param event Event interested.
597 * @param cb_fn User supplied callback function to be called.
598 * @param cb_arg Pointer to the parameters for the registered
602 * - On success, zero.
603 * - On failure, a negative value.
606 rte_cryptodev_callback_unregister(uint8_t dev_id,
607 enum rte_cryptodev_event_type event,
608 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
611 typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
612 struct rte_crypto_op **ops, uint16_t nb_ops);
613 /**< Dequeue processed packets from queue pair of a device. */
615 typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
616 struct rte_crypto_op **ops, uint16_t nb_ops);
617 /**< Enqueue packets for processing on queue pair of a device. */
622 struct rte_cryptodev_callback;
624 /** Structure to keep track of registered callbacks */
625 TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
627 /** The data structure associated with each crypto device. */
628 struct rte_cryptodev {
629 dequeue_pkt_burst_t dequeue_burst;
630 /**< Pointer to PMD receive function. */
631 enqueue_pkt_burst_t enqueue_burst;
632 /**< Pointer to PMD transmit function. */
634 const struct rte_cryptodev_driver *driver;
635 /**< Driver for this device */
636 struct rte_cryptodev_data *data;
637 /**< Pointer to device data */
638 struct rte_cryptodev_ops *dev_ops;
639 /**< Functions exported by PMD */
640 uint64_t feature_flags;
641 /**< Supported features */
642 struct rte_device *device;
643 /**< Backing device */
645 enum rte_cryptodev_type dev_type;
646 /**< Crypto device type */
648 struct rte_cryptodev_cb_list link_intr_cbs;
649 /**< User application callback for interrupts if present */
652 uint8_t attached : 1;
653 /**< Flag indicating the device is attached */
654 } __rte_cache_aligned;
658 * The data part, with no function pointers, associated with each device.
660 * This structure is safe to place in shared memory to be common among
661 * different processes in a multi-process configuration.
663 struct rte_cryptodev_data {
665 /**< Device ID for this instance */
667 /**< Socket ID where memory is allocated */
668 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
669 /**< Unique identifier name */
672 uint8_t dev_started : 1;
673 /**< Device state: STARTED(1)/STOPPED(0) */
675 struct rte_mempool *session_pool;
676 /**< Session memory pool */
678 /**< Array of pointers to queue pairs. */
679 uint16_t nb_queue_pairs;
680 /**< Number of device queue pairs. */
683 /**< PMD-specific private data */
684 } __rte_cache_aligned;
686 extern struct rte_cryptodev *rte_cryptodevs;
689 * Dequeue a burst of processed crypto operations from a queue on the crypto
690 * device. The dequeued operation are stored in *rte_crypto_op* structures
691 * whose pointers are supplied in the *ops* array.
693 * The rte_cryptodev_dequeue_burst() function returns the number of ops
694 * actually dequeued, which is the number of *rte_crypto_op* data structures
695 * effectively supplied into the *ops* array.
697 * A return value equal to *nb_ops* indicates that the queue contained
698 * at least *nb_ops* operations, and this is likely to signify that other
699 * processed operations remain in the devices output queue. Applications
700 * implementing a "retrieve as many processed operations as possible" policy
701 * can check this specific case and keep invoking the
702 * rte_cryptodev_dequeue_burst() function until a value less than
703 * *nb_ops* is returned.
705 * The rte_cryptodev_dequeue_burst() function does not provide any error
706 * notification to avoid the corresponding overhead.
708 * @param dev_id The symmetric crypto device identifier
709 * @param qp_id The index of the queue pair from which to
710 * retrieve processed packets. The value must be
711 * in the range [0, nb_queue_pair - 1] previously
712 * supplied to rte_cryptodev_configure().
713 * @param ops The address of an array of pointers to
714 * *rte_crypto_op* structures that must be
715 * large enough to store *nb_ops* pointers in it.
716 * @param nb_ops The maximum number of operations to dequeue.
719 * - The number of operations actually dequeued, which is the number
720 * of pointers to *rte_crypto_op* structures effectively supplied to the
723 static inline uint16_t
724 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
725 struct rte_crypto_op **ops, uint16_t nb_ops)
727 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
729 nb_ops = (*dev->dequeue_burst)
730 (dev->data->queue_pairs[qp_id], ops, nb_ops);
736 * Enqueue a burst of operations for processing on a crypto device.
738 * The rte_cryptodev_enqueue_burst() function is invoked to place
739 * crypto operations on the queue *qp_id* of the device designated by
742 * The *nb_ops* parameter is the number of operations to process which are
743 * supplied in the *ops* array of *rte_crypto_op* structures.
745 * The rte_cryptodev_enqueue_burst() function returns the number of
746 * operations it actually enqueued for processing. A return value equal to
747 * *nb_ops* means that all packets have been enqueued.
749 * @param dev_id The identifier of the device.
750 * @param qp_id The index of the queue pair which packets are
751 * to be enqueued for processing. The value
752 * must be in the range [0, nb_queue_pairs - 1]
753 * previously supplied to
754 * *rte_cryptodev_configure*.
755 * @param ops The address of an array of *nb_ops* pointers
756 * to *rte_crypto_op* structures which contain
757 * the crypto operations to be processed.
758 * @param nb_ops The number of operations to process.
761 * The number of operations actually enqueued on the crypto device. The return
762 * value can be less than the value of the *nb_ops* parameter when the
763 * crypto devices queue is full or if invalid parameters are specified in
766 static inline uint16_t
767 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
768 struct rte_crypto_op **ops, uint16_t nb_ops)
770 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
772 return (*dev->enqueue_burst)(
773 dev->data->queue_pairs[qp_id], ops, nb_ops);
777 /** Cryptodev symmetric crypto session */
778 struct rte_cryptodev_sym_session {
783 enum rte_cryptodev_type dev_type;
784 /** Crypto Device type session created on */
785 struct rte_mempool *mp;
786 /**< Mempool session allocated from */
788 /**< Public symmetric session details */
790 __extension__ char _private[0];
791 /**< Private session material */
796 * Initialise a session for symmetric cryptographic operations.
798 * This function is used by the client to initialize immutable
799 * parameters of symmetric cryptographic operation.
800 * To perform the operation the rte_cryptodev_enqueue_burst function is
801 * used. Each mbuf should contain a reference to the session
802 * pointer returned from this function contained within it's crypto_op if a
803 * session-based operation is being provisioned. Memory to contain the session
804 * information is allocated from within mempool managed by the cryptodev.
806 * The rte_cryptodev_session_free must be called to free allocated
807 * memory when the session is no longer required.
809 * @param dev_id The device identifier.
810 * @param xform Crypto transform chain.
814 * Pointer to the created session or NULL
816 extern struct rte_cryptodev_sym_session *
817 rte_cryptodev_sym_session_create(uint8_t dev_id,
818 struct rte_crypto_sym_xform *xform);
821 * Free the memory associated with a previously allocated session.
823 * @param dev_id The device identifier.
824 * @param session Session pointer previously allocated by
825 * *rte_cryptodev_sym_session_create*.
828 * NULL on successful freeing of session.
829 * Session pointer on failure to free session.
831 extern struct rte_cryptodev_sym_session *
832 rte_cryptodev_sym_session_free(uint8_t dev_id,
833 struct rte_cryptodev_sym_session *session);
840 #endif /* _RTE_CRYPTODEV_H_ */