1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2020 Intel Corporation.
5 #ifndef _RTE_CRYPTODEV_H_
6 #define _RTE_CRYPTODEV_H_
9 * @file rte_cryptodev.h
11 * RTE Cryptographic Device APIs
13 * Defines RTE Crypto Device APIs for the provisioning of cipher and
14 * authentication operations.
21 #include "rte_kvargs.h"
22 #include "rte_crypto.h"
24 #include <rte_common.h>
25 #include <rte_config.h>
26 #include <rte_rcu_qsbr.h>
28 #include "rte_cryptodev_trace_fp.h"
30 extern const char **rte_cyptodev_names;
34 #define CDEV_LOG_ERR(...) \
35 RTE_LOG(ERR, CRYPTODEV, \
36 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
37 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
39 #define CDEV_LOG_INFO(...) \
40 RTE_LOG(INFO, CRYPTODEV, \
41 RTE_FMT(RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
42 RTE_FMT_TAIL(__VA_ARGS__,)))
44 #define CDEV_LOG_DEBUG(...) \
45 RTE_LOG(DEBUG, CRYPTODEV, \
46 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
47 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
49 #define CDEV_PMD_TRACE(...) \
50 RTE_LOG(DEBUG, CRYPTODEV, \
51 RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
52 dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))
55 * A macro that points to an offset from the start
56 * of the crypto operation structure (rte_crypto_op)
58 * The returned pointer is cast to type t.
61 * The crypto operation.
63 * The offset from the start of the crypto operation.
65 * The type to cast the result into.
67 #define rte_crypto_op_ctod_offset(c, t, o) \
68 ((t)((char *)(c) + (o)))
71 * A macro that returns the physical address that points
72 * to an offset from the start of the crypto operation
76 * The crypto operation.
78 * The offset from the start of the crypto operation
79 * to calculate address from.
81 #define rte_crypto_op_ctophys_offset(c, o) \
82 (rte_iova_t)((c)->phys_addr + (o))
85 * Crypto parameters range description
87 struct rte_crypto_param_range {
88 uint16_t min; /**< minimum size */
89 uint16_t max; /**< maximum size */
91 /**< if a range of sizes are supported,
92 * this parameter is used to indicate
93 * increments in byte size that are supported
94 * between the minimum and maximum
99 * Data-unit supported lengths of cipher algorithms.
100 * A bit can represent any set of data-unit sizes
101 * (single size, multiple size, range, etc).
103 #define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_512_BYTES RTE_BIT32(0)
104 #define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_4096_BYTES RTE_BIT32(1)
107 * Symmetric Crypto Capability
109 struct rte_cryptodev_symmetric_capability {
110 enum rte_crypto_sym_xform_type xform_type;
111 /**< Transform type : Authentication / Cipher / AEAD */
115 enum rte_crypto_auth_algorithm algo;
116 /**< authentication algorithm */
118 /**< algorithm block size */
119 struct rte_crypto_param_range key_size;
120 /**< auth key size range */
121 struct rte_crypto_param_range digest_size;
122 /**< digest size range */
123 struct rte_crypto_param_range aad_size;
124 /**< Additional authentication data size range */
125 struct rte_crypto_param_range iv_size;
126 /**< Initialisation vector data size range */
128 /**< Symmetric Authentication transform capabilities */
130 enum rte_crypto_cipher_algorithm algo;
131 /**< cipher algorithm */
133 /**< algorithm block size */
134 struct rte_crypto_param_range key_size;
135 /**< cipher key size range */
136 struct rte_crypto_param_range iv_size;
137 /**< Initialisation vector data size range */
138 uint32_t dataunit_set;
140 * Supported data-unit lengths:
141 * RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_* bits
142 * or 0 for lengths defined in the algorithm standard.
145 /**< Symmetric Cipher transform capabilities */
147 enum rte_crypto_aead_algorithm algo;
148 /**< AEAD algorithm */
150 /**< algorithm block size */
151 struct rte_crypto_param_range key_size;
152 /**< AEAD key size range */
153 struct rte_crypto_param_range digest_size;
154 /**< digest size range */
155 struct rte_crypto_param_range aad_size;
156 /**< Additional authentication data size range */
157 struct rte_crypto_param_range iv_size;
158 /**< Initialisation vector data size range */
164 * Asymmetric Xform Crypto Capability
167 struct rte_cryptodev_asymmetric_xform_capability {
168 enum rte_crypto_asym_xform_type xform_type;
169 /**< Transform type: RSA/MODEXP/DH/DSA/MODINV */
172 /**< bitmask for supported rte_crypto_asym_op_type */
176 struct rte_crypto_param_range modlen;
177 /**< Range of modulus length supported by modulus based xform.
178 * Value 0 mean implementation default
184 * Asymmetric Crypto Capability
187 struct rte_cryptodev_asymmetric_capability {
188 struct rte_cryptodev_asymmetric_xform_capability xform_capa;
192 /** Structure used to capture a capability of a crypto device */
193 struct rte_cryptodev_capabilities {
194 enum rte_crypto_op_type op;
195 /**< Operation type */
199 struct rte_cryptodev_symmetric_capability sym;
200 /**< Symmetric operation capability parameters */
201 struct rte_cryptodev_asymmetric_capability asym;
202 /**< Asymmetric operation capability parameters */
206 /** Structure used to describe crypto algorithms */
207 struct rte_cryptodev_sym_capability_idx {
208 enum rte_crypto_sym_xform_type type;
210 enum rte_crypto_cipher_algorithm cipher;
211 enum rte_crypto_auth_algorithm auth;
212 enum rte_crypto_aead_algorithm aead;
217 * Structure used to describe asymmetric crypto xforms
218 * Each xform maps to one asym algorithm.
221 struct rte_cryptodev_asym_capability_idx {
222 enum rte_crypto_asym_xform_type type;
223 /**< Asymmetric xform (algo) type */
227 * Provide capabilities available for defined device and algorithm
229 * @param dev_id The identifier of the device.
230 * @param idx Description of crypto algorithms.
233 * - Return description of the symmetric crypto capability if exist.
234 * - Return NULL if the capability not exist.
236 const struct rte_cryptodev_symmetric_capability *
237 rte_cryptodev_sym_capability_get(uint8_t dev_id,
238 const struct rte_cryptodev_sym_capability_idx *idx);
241 * Provide capabilities available for defined device and xform
243 * @param dev_id The identifier of the device.
244 * @param idx Description of asym crypto xform.
247 * - Return description of the asymmetric crypto capability if exist.
248 * - Return NULL if the capability not exist.
251 const struct rte_cryptodev_asymmetric_xform_capability *
252 rte_cryptodev_asym_capability_get(uint8_t dev_id,
253 const struct rte_cryptodev_asym_capability_idx *idx);
256 * Check if key size and initial vector are supported
257 * in crypto cipher capability
259 * @param capability Description of the symmetric crypto capability.
260 * @param key_size Cipher key size.
261 * @param iv_size Cipher initial vector size.
264 * - Return 0 if the parameters are in range of the capability.
265 * - Return -1 if the parameters are out of range of the capability.
268 rte_cryptodev_sym_capability_check_cipher(
269 const struct rte_cryptodev_symmetric_capability *capability,
270 uint16_t key_size, uint16_t iv_size);
273 * Check if key size and initial vector are supported
274 * in crypto auth capability
276 * @param capability Description of the symmetric crypto capability.
277 * @param key_size Auth key size.
278 * @param digest_size Auth digest size.
279 * @param iv_size Auth initial vector size.
282 * - Return 0 if the parameters are in range of the capability.
283 * - Return -1 if the parameters are out of range of the capability.
286 rte_cryptodev_sym_capability_check_auth(
287 const struct rte_cryptodev_symmetric_capability *capability,
288 uint16_t key_size, uint16_t digest_size, uint16_t iv_size);
291 * Check if key, digest, AAD and initial vector sizes are supported
292 * in crypto AEAD capability
294 * @param capability Description of the symmetric crypto capability.
295 * @param key_size AEAD key size.
296 * @param digest_size AEAD digest size.
297 * @param aad_size AEAD AAD size.
298 * @param iv_size AEAD IV size.
301 * - Return 0 if the parameters are in range of the capability.
302 * - Return -1 if the parameters are out of range of the capability.
305 rte_cryptodev_sym_capability_check_aead(
306 const struct rte_cryptodev_symmetric_capability *capability,
307 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
311 * Check if op type is supported
313 * @param capability Description of the asymmetric crypto capability.
314 * @param op_type op type
317 * - Return 1 if the op type is supported
318 * - Return 0 if unsupported
322 rte_cryptodev_asym_xform_capability_check_optype(
323 const struct rte_cryptodev_asymmetric_xform_capability *capability,
324 enum rte_crypto_asym_op_type op_type);
327 * Check if modulus length is in supported range
329 * @param capability Description of the asymmetric crypto capability.
330 * @param modlen modulus length.
333 * - Return 0 if the parameters are in range of the capability.
334 * - Return -1 if the parameters are out of range of the capability.
338 rte_cryptodev_asym_xform_capability_check_modlen(
339 const struct rte_cryptodev_asymmetric_xform_capability *capability,
343 * Provide the cipher algorithm enum, given an algorithm string
345 * @param algo_enum A pointer to the cipher algorithm
347 * @param algo_string Authentication algo string
350 * - Return -1 if string is not valid
351 * - Return 0 is the string is valid
354 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
355 const char *algo_string);
358 * Provide the authentication algorithm enum, given an algorithm string
360 * @param algo_enum A pointer to the authentication algorithm
362 * @param algo_string Authentication algo string
365 * - Return -1 if string is not valid
366 * - Return 0 is the string is valid
369 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
370 const char *algo_string);
373 * Provide the AEAD algorithm enum, given an algorithm string
375 * @param algo_enum A pointer to the AEAD algorithm
377 * @param algo_string AEAD algorithm string
380 * - Return -1 if string is not valid
381 * - Return 0 is the string is valid
384 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
385 const char *algo_string);
388 * Provide the Asymmetric xform enum, given an xform string
390 * @param xform_enum A pointer to the xform type
392 * @param xform_string xform string
395 * - Return -1 if string is not valid
396 * - Return 0 if the string is valid
400 rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
401 const char *xform_string);
404 /** Macro used at end of crypto PMD list */
405 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
406 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
410 * Crypto device supported feature flags
413 * New features flags should be added to the end of the list
415 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
417 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
418 /**< Symmetric crypto operations are supported */
419 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
420 /**< Asymmetric crypto operations are supported */
421 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
422 /**< Chaining symmetric crypto operations are supported */
423 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
424 /**< Utilises CPU SIMD SSE instructions */
425 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
426 /**< Utilises CPU SIMD AVX instructions */
427 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
428 /**< Utilises CPU SIMD AVX2 instructions */
429 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
430 /**< Utilises CPU AES-NI instructions */
431 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
432 /**< Operations are off-loaded to an
433 * external hardware accelerator
435 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
436 /**< Utilises CPU SIMD AVX512 instructions */
437 #define RTE_CRYPTODEV_FF_IN_PLACE_SGL (1ULL << 9)
438 /**< In-place Scatter-gather (SGL) buffers, with multiple segments,
441 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT (1ULL << 10)
442 /**< Out-of-place Scatter-gather (SGL) buffers are
443 * supported in input and output
445 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT (1ULL << 11)
446 /**< Out-of-place Scatter-gather (SGL) buffers are supported
447 * in input, combined with linear buffers (LB), with a
448 * single segment in output
450 #define RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT (1ULL << 12)
451 /**< Out-of-place Scatter-gather (SGL) buffers are supported
452 * in output, combined with linear buffers (LB) in input
454 #define RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT (1ULL << 13)
455 /**< Out-of-place linear buffers (LB) are supported in input and output */
456 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 14)
457 /**< Utilises CPU NEON instructions */
458 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 15)
459 /**< Utilises ARM CPU Cryptographic Extensions */
460 #define RTE_CRYPTODEV_FF_SECURITY (1ULL << 16)
461 /**< Support Security Protocol Processing */
462 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP (1ULL << 17)
463 /**< Support RSA Private Key OP with exponent */
464 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT (1ULL << 18)
465 /**< Support RSA Private Key OP with CRT (quintuple) Keys */
466 #define RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED (1ULL << 19)
467 /**< Support encrypted-digest operations where digest is appended to data */
468 #define RTE_CRYPTODEV_FF_ASYM_SESSIONLESS (1ULL << 20)
469 /**< Support asymmetric session-less operations */
470 #define RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO (1ULL << 21)
471 /**< Support symmetric cpu-crypto processing */
472 #define RTE_CRYPTODEV_FF_SYM_SESSIONLESS (1ULL << 22)
473 /**< Support symmetric session-less operations */
474 #define RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA (1ULL << 23)
475 /**< Support operations on data which is not byte aligned */
476 #define RTE_CRYPTODEV_FF_SYM_RAW_DP (1ULL << 24)
477 /**< Support accelerator specific symmetric raw data-path APIs */
478 #define RTE_CRYPTODEV_FF_CIPHER_MULTIPLE_DATA_UNITS (1ULL << 25)
479 /**< Support operations on multiple data-units message */
480 #define RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY (1ULL << 26)
481 /**< Support wrapped key in cipher xform */
484 * Get the name of a crypto device feature flag
486 * @param flag The mask describing the flag.
489 * The name of this flag, or NULL if it's not a valid feature flag.
493 rte_cryptodev_get_feature_name(uint64_t flag);
495 /** Crypto device information */
496 struct rte_cryptodev_info {
497 const char *driver_name; /**< Driver name. */
498 uint8_t driver_id; /**< Driver identifier */
499 struct rte_device *device; /**< Generic device information. */
501 uint64_t feature_flags;
502 /**< Feature flags exposes HW/SW features for the given device */
504 const struct rte_cryptodev_capabilities *capabilities;
505 /**< Array of devices supported capabilities */
507 unsigned max_nb_queue_pairs;
508 /**< Maximum number of queues pairs supported by device. */
510 uint16_t min_mbuf_headroom_req;
511 /**< Minimum mbuf headroom required by device */
513 uint16_t min_mbuf_tailroom_req;
514 /**< Minimum mbuf tailroom required by device */
517 unsigned max_nb_sessions;
518 /**< Maximum number of sessions supported by device.
519 * If 0, the device does not have any limitation in
520 * number of sessions that can be used.
525 #define RTE_CRYPTODEV_DETACHED (0)
526 #define RTE_CRYPTODEV_ATTACHED (1)
528 /** Definitions of Crypto device event types */
529 enum rte_cryptodev_event_type {
530 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
531 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
532 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
535 /** Crypto device queue pair configuration structure. */
536 struct rte_cryptodev_qp_conf {
537 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
538 struct rte_mempool *mp_session;
539 /**< The mempool for creating session in sessionless mode */
540 struct rte_mempool *mp_session_private;
541 /**< The mempool for creating sess private data in sessionless mode */
545 * Function type used for processing crypto ops when enqueue/dequeue burst is
548 * The callback function is called on enqueue/dequeue burst immediately.
550 * @param dev_id The identifier of the device.
551 * @param qp_id The index of the queue pair on which ops are
552 * enqueued/dequeued. The value must be in the
553 * range [0, nb_queue_pairs - 1] previously
554 * supplied to *rte_cryptodev_configure*.
555 * @param ops The address of an array of *nb_ops* pointers
556 * to *rte_crypto_op* structures which contain
557 * the crypto operations to be processed.
558 * @param nb_ops The number of operations to process.
559 * @param user_param The arbitrary user parameter passed in by the
560 * application when the callback was originally
562 * @return The number of ops to be enqueued to the
565 typedef uint16_t (*rte_cryptodev_callback_fn)(uint16_t dev_id, uint16_t qp_id,
566 struct rte_crypto_op **ops, uint16_t nb_ops, void *user_param);
569 * Typedef for application callback function to be registered by application
570 * software for notification of device events
572 * @param dev_id Crypto device identifier
573 * @param event Crypto device event to register for notification of.
574 * @param cb_arg User specified parameter to be passed as to passed to
575 * users callback function.
577 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
578 enum rte_cryptodev_event_type event, void *cb_arg);
581 /** Crypto Device statistics */
582 struct rte_cryptodev_stats {
583 uint64_t enqueued_count;
584 /**< Count of all operations enqueued */
585 uint64_t dequeued_count;
586 /**< Count of all operations dequeued */
588 uint64_t enqueue_err_count;
589 /**< Total error count on operations enqueued */
590 uint64_t dequeue_err_count;
591 /**< Total error count on operations dequeued */
594 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
595 /**< Max length of name of crypto PMD */
598 * Get the device identifier for the named crypto device.
600 * @param name device name to select the device structure.
603 * - Returns crypto device identifier on success.
604 * - Return -1 on failure to find named crypto device.
607 rte_cryptodev_get_dev_id(const char *name);
610 * Get the crypto device name given a device identifier.
613 * The identifier of the device
616 * - Returns crypto device name.
617 * - Returns NULL if crypto device is not present.
620 rte_cryptodev_name_get(uint8_t dev_id);
623 * Get the total number of crypto devices that have been successfully
627 * - The total number of usable crypto devices.
630 rte_cryptodev_count(void);
633 * Get number of crypto device defined type.
635 * @param driver_id driver identifier.
638 * Returns number of crypto device.
641 rte_cryptodev_device_count_by_driver(uint8_t driver_id);
644 * Get number and identifiers of attached crypto devices that
645 * use the same crypto driver.
647 * @param driver_name driver name.
648 * @param devices output devices identifiers.
649 * @param nb_devices maximal number of devices.
652 * Returns number of attached crypto device.
655 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
658 * Return the NUMA socket to which a device is connected
661 * The identifier of the device
663 * The NUMA socket id to which the device is connected or
664 * a default of zero if the socket could not be determined.
665 * -1 if returned is the dev_id value is out of range.
668 rte_cryptodev_socket_id(uint8_t dev_id);
670 /** Crypto device configuration structure */
671 struct rte_cryptodev_config {
672 int socket_id; /**< Socket to allocate resources on */
673 uint16_t nb_queue_pairs;
674 /**< Number of queue pairs to configure on device */
676 /**< Feature flags to be disabled. Only the following features are
677 * allowed to be disabled,
678 * - RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO
679 * - RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO
680 * - RTE_CRYTPODEV_FF_SECURITY
685 * Configure a device.
687 * This function must be invoked first before any other function in the
688 * API. This function can also be re-invoked when a device is in the
691 * @param dev_id The identifier of the device to configure.
692 * @param config The crypto device configuration structure.
695 * - 0: Success, device configured.
696 * - <0: Error code returned by the driver configuration function.
699 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
704 * The device start step is the last one and consists of setting the configured
705 * offload features and in starting the transmit and the receive units of the
707 * On success, all basic functions exported by the API (link status,
708 * receive/transmit, and so on) can be invoked.
711 * The identifier of the device.
713 * - 0: Success, device started.
714 * - <0: Error code of the driver device start function.
717 rte_cryptodev_start(uint8_t dev_id);
720 * Stop an device. The device can be restarted with a call to
721 * rte_cryptodev_start()
723 * @param dev_id The identifier of the device.
726 rte_cryptodev_stop(uint8_t dev_id);
729 * Close an device. The device cannot be restarted!
731 * @param dev_id The identifier of the device.
734 * - 0 on successfully closing device
735 * - <0 on failure to close device
738 rte_cryptodev_close(uint8_t dev_id);
741 * Allocate and set up a receive queue pair for a device.
744 * @param dev_id The identifier of the device.
745 * @param queue_pair_id The index of the queue pairs to set up. The
746 * value must be in the range [0, nb_queue_pair
747 * - 1] previously supplied to
748 * rte_cryptodev_configure().
749 * @param qp_conf The pointer to the configuration data to be
750 * used for the queue pair.
751 * @param socket_id The *socket_id* argument is the socket
752 * identifier in case of NUMA. The value can be
753 * *SOCKET_ID_ANY* if there is no NUMA constraint
754 * for the DMA memory allocated for the receive
758 * - 0: Success, queue pair correctly set up.
759 * - <0: Queue pair configuration failed
762 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
763 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
766 * Get the status of queue pairs setup on a specific crypto device
768 * @param dev_id Crypto device identifier.
769 * @param queue_pair_id The index of the queue pairs to set up. The
770 * value must be in the range [0, nb_queue_pair
771 * - 1] previously supplied to
772 * rte_cryptodev_configure().
774 * - 0: qp was not configured
775 * - 1: qp was configured
776 * - -EINVAL: device was not configured
780 rte_cryptodev_get_qp_status(uint8_t dev_id, uint16_t queue_pair_id);
783 * Get the number of queue pairs on a specific crypto device
785 * @param dev_id Crypto device identifier.
787 * - The number of configured queue pairs.
790 rte_cryptodev_queue_pair_count(uint8_t dev_id);
794 * Retrieve the general I/O statistics of a device.
796 * @param dev_id The identifier of the device.
797 * @param stats A pointer to a structure of type
798 * *rte_cryptodev_stats* to be filled with the
799 * values of device counters.
801 * - Zero if successful.
802 * - Non-zero otherwise.
805 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
808 * Reset the general I/O statistics of a device.
810 * @param dev_id The identifier of the device.
813 rte_cryptodev_stats_reset(uint8_t dev_id);
816 * Retrieve the contextual information of a device.
818 * @param dev_id The identifier of the device.
819 * @param dev_info A pointer to a structure of type
820 * *rte_cryptodev_info* to be filled with the
821 * contextual information of the device.
823 * @note The capabilities field of dev_info is set to point to the first
824 * element of an array of struct rte_cryptodev_capabilities. The element after
825 * the last valid element has it's op field set to
826 * RTE_CRYPTO_OP_TYPE_UNDEFINED.
829 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
833 * Register a callback function for specific device id.
835 * @param dev_id Device id.
836 * @param event Event interested.
837 * @param cb_fn User supplied callback function to be called.
838 * @param cb_arg Pointer to the parameters for the registered
842 * - On success, zero.
843 * - On failure, a negative value.
846 rte_cryptodev_callback_register(uint8_t dev_id,
847 enum rte_cryptodev_event_type event,
848 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
851 * Unregister a callback function for specific device id.
853 * @param dev_id The device identifier.
854 * @param event Event interested.
855 * @param cb_fn User supplied callback function to be called.
856 * @param cb_arg Pointer to the parameters for the registered
860 * - On success, zero.
861 * - On failure, a negative value.
864 rte_cryptodev_callback_unregister(uint8_t dev_id,
865 enum rte_cryptodev_event_type event,
866 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
868 typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
869 struct rte_crypto_op **ops, uint16_t nb_ops);
870 /**< Dequeue processed packets from queue pair of a device. */
872 typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
873 struct rte_crypto_op **ops, uint16_t nb_ops);
874 /**< Enqueue packets for processing on queue pair of a device. */
879 struct rte_cryptodev_callback;
881 /** Structure to keep track of registered callbacks */
882 TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
885 * Structure used to hold information about the callbacks to be called for a
886 * queue pair on enqueue/dequeue.
888 struct rte_cryptodev_cb {
889 struct rte_cryptodev_cb *next;
890 /**< Pointer to next callback */
891 rte_cryptodev_callback_fn fn;
892 /**< Pointer to callback function */
894 /**< Pointer to argument */
899 * Structure used to hold information about the RCU for a queue pair.
901 struct rte_cryptodev_cb_rcu {
902 struct rte_cryptodev_cb *next;
903 /**< Pointer to next callback */
904 struct rte_rcu_qsbr *qsbr;
905 /**< RCU QSBR variable per queue pair */
908 /** The data structure associated with each crypto device. */
909 struct rte_cryptodev {
910 dequeue_pkt_burst_t dequeue_burst;
911 /**< Pointer to PMD receive function. */
912 enqueue_pkt_burst_t enqueue_burst;
913 /**< Pointer to PMD transmit function. */
915 struct rte_cryptodev_data *data;
916 /**< Pointer to device data */
917 struct rte_cryptodev_ops *dev_ops;
918 /**< Functions exported by PMD */
919 uint64_t feature_flags;
920 /**< Feature flags exposes HW/SW features for the given device */
921 struct rte_device *device;
922 /**< Backing device */
925 /**< Crypto driver identifier*/
927 struct rte_cryptodev_cb_list link_intr_cbs;
928 /**< User application callback for interrupts if present */
931 /**< Context for security ops */
934 uint8_t attached : 1;
935 /**< Flag indicating the device is attached */
937 struct rte_cryptodev_cb_rcu *enq_cbs;
938 /**< User application callback for pre enqueue processing */
940 struct rte_cryptodev_cb_rcu *deq_cbs;
941 /**< User application callback for post dequeue processing */
942 } __rte_cache_aligned;
945 rte_cryptodev_get_sec_ctx(uint8_t dev_id);
949 * The data part, with no function pointers, associated with each device.
951 * This structure is safe to place in shared memory to be common among
952 * different processes in a multi-process configuration.
954 struct rte_cryptodev_data {
956 /**< Device ID for this instance */
958 /**< Socket ID where memory is allocated */
959 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
960 /**< Unique identifier name */
963 uint8_t dev_started : 1;
964 /**< Device state: STARTED(1)/STOPPED(0) */
966 struct rte_mempool *session_pool;
967 /**< Session memory pool */
969 /**< Array of pointers to queue pairs. */
970 uint16_t nb_queue_pairs;
971 /**< Number of device queue pairs. */
974 /**< PMD-specific private data */
975 } __rte_cache_aligned;
977 extern struct rte_cryptodev *rte_cryptodevs;
980 * Dequeue a burst of processed crypto operations from a queue on the crypto
981 * device. The dequeued operation are stored in *rte_crypto_op* structures
982 * whose pointers are supplied in the *ops* array.
984 * The rte_cryptodev_dequeue_burst() function returns the number of ops
985 * actually dequeued, which is the number of *rte_crypto_op* data structures
986 * effectively supplied into the *ops* array.
988 * A return value equal to *nb_ops* indicates that the queue contained
989 * at least *nb_ops* operations, and this is likely to signify that other
990 * processed operations remain in the devices output queue. Applications
991 * implementing a "retrieve as many processed operations as possible" policy
992 * can check this specific case and keep invoking the
993 * rte_cryptodev_dequeue_burst() function until a value less than
994 * *nb_ops* is returned.
996 * The rte_cryptodev_dequeue_burst() function does not provide any error
997 * notification to avoid the corresponding overhead.
999 * @param dev_id The symmetric crypto device identifier
1000 * @param qp_id The index of the queue pair from which to
1001 * retrieve processed packets. The value must be
1002 * in the range [0, nb_queue_pair - 1] previously
1003 * supplied to rte_cryptodev_configure().
1004 * @param ops The address of an array of pointers to
1005 * *rte_crypto_op* structures that must be
1006 * large enough to store *nb_ops* pointers in it.
1007 * @param nb_ops The maximum number of operations to dequeue.
1010 * - The number of operations actually dequeued, which is the number
1011 * of pointers to *rte_crypto_op* structures effectively supplied to the
1014 static inline uint16_t
1015 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
1016 struct rte_crypto_op **ops, uint16_t nb_ops)
1018 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
1020 rte_cryptodev_trace_dequeue_burst(dev_id, qp_id, (void **)ops, nb_ops);
1021 nb_ops = (*dev->dequeue_burst)
1022 (dev->data->queue_pairs[qp_id], ops, nb_ops);
1023 #ifdef RTE_CRYPTO_CALLBACKS
1024 if (unlikely(dev->deq_cbs != NULL)) {
1025 struct rte_cryptodev_cb_rcu *list;
1026 struct rte_cryptodev_cb *cb;
1028 /* __ATOMIC_RELEASE memory order was used when the
1029 * call back was inserted into the list.
1030 * Since there is a clear dependency between loading
1031 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is
1034 list = &dev->deq_cbs[qp_id];
1035 rte_rcu_qsbr_thread_online(list->qsbr, 0);
1036 cb = __atomic_load_n(&list->next, __ATOMIC_RELAXED);
1038 while (cb != NULL) {
1039 nb_ops = cb->fn(dev_id, qp_id, ops, nb_ops,
1044 rte_rcu_qsbr_thread_offline(list->qsbr, 0);
1051 * Enqueue a burst of operations for processing on a crypto device.
1053 * The rte_cryptodev_enqueue_burst() function is invoked to place
1054 * crypto operations on the queue *qp_id* of the device designated by
1057 * The *nb_ops* parameter is the number of operations to process which are
1058 * supplied in the *ops* array of *rte_crypto_op* structures.
1060 * The rte_cryptodev_enqueue_burst() function returns the number of
1061 * operations it actually enqueued for processing. A return value equal to
1062 * *nb_ops* means that all packets have been enqueued.
1064 * @param dev_id The identifier of the device.
1065 * @param qp_id The index of the queue pair which packets are
1066 * to be enqueued for processing. The value
1067 * must be in the range [0, nb_queue_pairs - 1]
1068 * previously supplied to
1069 * *rte_cryptodev_configure*.
1070 * @param ops The address of an array of *nb_ops* pointers
1071 * to *rte_crypto_op* structures which contain
1072 * the crypto operations to be processed.
1073 * @param nb_ops The number of operations to process.
1076 * The number of operations actually enqueued on the crypto device. The return
1077 * value can be less than the value of the *nb_ops* parameter when the
1078 * crypto devices queue is full or if invalid parameters are specified in
1079 * a *rte_crypto_op*.
1081 static inline uint16_t
1082 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
1083 struct rte_crypto_op **ops, uint16_t nb_ops)
1085 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
1087 #ifdef RTE_CRYPTO_CALLBACKS
1088 if (unlikely(dev->enq_cbs != NULL)) {
1089 struct rte_cryptodev_cb_rcu *list;
1090 struct rte_cryptodev_cb *cb;
1092 /* __ATOMIC_RELEASE memory order was used when the
1093 * call back was inserted into the list.
1094 * Since there is a clear dependency between loading
1095 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is
1098 list = &dev->enq_cbs[qp_id];
1099 rte_rcu_qsbr_thread_online(list->qsbr, 0);
1100 cb = __atomic_load_n(&list->next, __ATOMIC_RELAXED);
1102 while (cb != NULL) {
1103 nb_ops = cb->fn(dev_id, qp_id, ops, nb_ops,
1108 rte_rcu_qsbr_thread_offline(list->qsbr, 0);
1112 rte_cryptodev_trace_enqueue_burst(dev_id, qp_id, (void **)ops, nb_ops);
1113 return (*dev->enqueue_burst)(
1114 dev->data->queue_pairs[qp_id], ops, nb_ops);
1118 /** Cryptodev symmetric crypto session
1119 * Each session is derived from a fixed xform chain. Therefore each session
1120 * has a fixed algo, key, op-type, digest_len etc.
1122 struct rte_cryptodev_sym_session {
1123 uint64_t opaque_data;
1124 /**< Can be used for external metadata */
1125 uint16_t nb_drivers;
1126 /**< number of elements in sess_data array */
1127 uint16_t user_data_sz;
1128 /**< session user data will be placed after sess_data */
1129 __extension__ struct {
1133 /**< Driver specific session material, variable size */
1136 /** Cryptodev asymmetric crypto session */
1137 struct rte_cryptodev_asym_session {
1138 __extension__ void *sess_private_data[0];
1139 /**< Private asymmetric session material */
1143 * Create a symmetric session mempool.
1146 * The unique mempool name.
1148 * The number of elements in the mempool.
1150 * The size of the element. This value will be ignored if it is smaller than
1151 * the minimum session header size required for the system. For the user who
1152 * want to use the same mempool for sym session and session private data it
1153 * can be the maximum value of all existing devices' private data and session
1156 * The number of per-lcore cache elements
1158 * The private data size of each session.
1160 * The *socket_id* argument is the socket identifier in the case of
1161 * NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
1162 * constraint for the reserved zone.
1165 * - On success return size of the session
1166 * - On failure returns 0
1169 struct rte_mempool *
1170 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
1171 uint32_t elt_size, uint32_t cache_size, uint16_t priv_size,
1175 * Create symmetric crypto session header (generic with no private data)
1177 * @param mempool Symmetric session mempool to allocate session
1180 * - On success return pointer to sym-session
1181 * - On failure returns NULL
1183 struct rte_cryptodev_sym_session *
1184 rte_cryptodev_sym_session_create(struct rte_mempool *mempool);
1187 * Create asymmetric crypto session header (generic with no private data)
1189 * @param mempool mempool to allocate asymmetric session
1192 * - On success return pointer to asym-session
1193 * - On failure returns NULL
1196 struct rte_cryptodev_asym_session *
1197 rte_cryptodev_asym_session_create(struct rte_mempool *mempool);
1200 * Frees symmetric crypto session header, after checking that all
1201 * the device private data has been freed, returning it
1202 * to its original mempool.
1204 * @param sess Session header to be freed.
1207 * - 0 if successful.
1208 * - -EINVAL if session is NULL.
1209 * - -EBUSY if not all device private data has been freed.
1212 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);
1215 * Frees asymmetric crypto session header, after checking that all
1216 * the device private data has been freed, returning it
1217 * to its original mempool.
1219 * @param sess Session header to be freed.
1222 * - 0 if successful.
1223 * - -EINVAL if session is NULL.
1224 * - -EBUSY if not all device private data has been freed.
1228 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess);
1231 * Fill out private data for the device id, based on its device type.
1233 * @param dev_id ID of device that we want the session to be used on
1234 * @param sess Session where the private data will be attached to
1235 * @param xforms Symmetric crypto transform operations to apply on flow
1236 * processed with this session
1237 * @param mempool Mempool where the private data is allocated.
1240 * - On success, zero.
1241 * - -EINVAL if input parameters are invalid.
1242 * - -ENOTSUP if crypto device does not support the crypto transform or
1243 * does not support symmetric operations.
1244 * - -ENOMEM if the private session could not be allocated.
1247 rte_cryptodev_sym_session_init(uint8_t dev_id,
1248 struct rte_cryptodev_sym_session *sess,
1249 struct rte_crypto_sym_xform *xforms,
1250 struct rte_mempool *mempool);
1253 * Initialize asymmetric session on a device with specific asymmetric xform
1255 * @param dev_id ID of device that we want the session to be used on
1256 * @param sess Session to be set up on a device
1257 * @param xforms Asymmetric crypto transform operations to apply on flow
1258 * processed with this session
1259 * @param mempool Mempool to be used for internal allocation.
1262 * - On success, zero.
1263 * - -EINVAL if input parameters are invalid.
1264 * - -ENOTSUP if crypto device does not support the crypto transform.
1265 * - -ENOMEM if the private session could not be allocated.
1269 rte_cryptodev_asym_session_init(uint8_t dev_id,
1270 struct rte_cryptodev_asym_session *sess,
1271 struct rte_crypto_asym_xform *xforms,
1272 struct rte_mempool *mempool);
1275 * Frees private data for the device id, based on its device type,
1276 * returning it to its mempool. It is the application's responsibility
1277 * to ensure that private session data is not cleared while there are
1278 * still in-flight operations using it.
1280 * @param dev_id ID of device that uses the session.
1281 * @param sess Session containing the reference to the private data
1284 * - 0 if successful.
1285 * - -EINVAL if device is invalid or session is NULL.
1286 * - -ENOTSUP if crypto device does not support symmetric operations.
1289 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1290 struct rte_cryptodev_sym_session *sess);
1293 * Frees resources held by asymmetric session during rte_cryptodev_session_init
1295 * @param dev_id ID of device that uses the asymmetric session.
1296 * @param sess Asymmetric session setup on device using
1297 * rte_cryptodev_session_init
1299 * - 0 if successful.
1300 * - -EINVAL if device is invalid or session is NULL.
1304 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1305 struct rte_cryptodev_asym_session *sess);
1308 * Get the size of the header session, for all registered drivers excluding
1309 * the user data size.
1312 * Size of the symmetric header session.
1315 rte_cryptodev_sym_get_header_session_size(void);
1318 * Get the size of the header session from created session.
1321 * The sym cryptodev session pointer
1324 * - If sess is not NULL, return the size of the header session including
1325 * the private data size defined within sess.
1326 * - If sess is NULL, return 0.
1330 rte_cryptodev_sym_get_existing_header_session_size(
1331 struct rte_cryptodev_sym_session *sess);
1334 * Get the size of the asymmetric session header, for all registered drivers.
1337 * Size of the asymmetric header session.
1341 rte_cryptodev_asym_get_header_session_size(void);
1344 * Get the size of the private symmetric session data
1347 * @param dev_id The device identifier.
1350 * - Size of the private data, if successful
1351 * - 0 if device is invalid or does not have private
1355 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id);
1358 * Get the size of the private data for asymmetric session
1361 * @param dev_id The device identifier.
1364 * - Size of the asymmetric private data, if successful
1365 * - 0 if device is invalid or does not have private session
1369 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id);
1372 * Validate if the crypto device index is valid attached crypto device.
1374 * @param dev_id Crypto device index.
1377 * - If the device index is valid (1) or not (0).
1380 rte_cryptodev_is_valid_dev(uint8_t dev_id);
1383 * Provide driver identifier.
1386 * The pointer to a driver name.
1388 * The driver type identifier or -1 if no driver found
1390 int rte_cryptodev_driver_id_get(const char *name);
1393 * Provide driver name.
1396 * The driver identifier.
1398 * The driver name or null if no driver found
1400 const char *rte_cryptodev_driver_name_get(uint8_t driver_id);
1403 * Store user data in a session.
1405 * @param sess Session pointer allocated by
1406 * *rte_cryptodev_sym_session_create*.
1407 * @param data Pointer to the user data.
1408 * @param size Size of the user data.
1411 * - On success, zero.
1412 * - On failure, a negative value.
1416 rte_cryptodev_sym_session_set_user_data(
1417 struct rte_cryptodev_sym_session *sess,
1422 * Get user data stored in a session.
1424 * @param sess Session pointer allocated by
1425 * *rte_cryptodev_sym_session_create*.
1428 * - On success return pointer to user data.
1429 * - On failure returns NULL.
1433 rte_cryptodev_sym_session_get_user_data(
1434 struct rte_cryptodev_sym_session *sess);
1437 * Perform actual crypto processing (encrypt/digest or auth/decrypt)
1438 * on user provided data.
1440 * @param dev_id The device identifier.
1441 * @param sess Cryptodev session structure
1442 * @param ofs Start and stop offsets for auth and cipher operations
1443 * @param vec Vectorized operation descriptor
1446 * - Returns number of successfully processed packets.
1450 rte_cryptodev_sym_cpu_crypto_process(uint8_t dev_id,
1451 struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs ofs,
1452 struct rte_crypto_sym_vec *vec);
1455 * Get the size of the raw data-path context buffer.
1457 * @param dev_id The device identifier.
1460 * - If the device supports raw data-path APIs, return the context size.
1461 * - If the device does not support the APIs, return -1.
1465 rte_cryptodev_get_raw_dp_ctx_size(uint8_t dev_id);
1468 * Union of different crypto session types, including session-less xform
1471 union rte_cryptodev_session_ctx {
1472 struct rte_cryptodev_sym_session *crypto_sess;
1473 struct rte_crypto_sym_xform *xform;
1474 struct rte_security_session *sec_sess;
1478 * Enqueue a vectorized operation descriptor into the device queue but the
1479 * driver may or may not start processing until rte_cryptodev_raw_enqueue_done()
1482 * @param qp Driver specific queue pair data.
1483 * @param drv_ctx Driver specific context data.
1484 * @param vec Vectorized operation descriptor.
1485 * @param ofs Start and stop offsets for auth and cipher
1487 * @param user_data The array of user data for dequeue later.
1488 * @param enqueue_status Driver written value to specify the
1489 * enqueue status. Possible values:
1490 * - 1: The number of operations returned are
1491 * enqueued successfully.
1492 * - 0: The number of operations returned are
1493 * cached into the queue but are not processed
1494 * until rte_cryptodev_raw_enqueue_done() is
1496 * - negative integer: Error occurred.
1498 * - The number of operations in the descriptor successfully enqueued or
1499 * cached into the queue but not enqueued yet, depends on the
1500 * "enqueue_status" value.
1502 typedef uint32_t (*cryptodev_sym_raw_enqueue_burst_t)(
1503 void *qp, uint8_t *drv_ctx, struct rte_crypto_sym_vec *vec,
1504 union rte_crypto_sym_ofs ofs, void *user_data[], int *enqueue_status);
1507 * Enqueue single raw data vector into the device queue but the driver may or
1508 * may not start processing until rte_cryptodev_raw_enqueue_done() is called.
1510 * @param qp Driver specific queue pair data.
1511 * @param drv_ctx Driver specific context data.
1512 * @param data_vec The buffer data vector.
1513 * @param n_data_vecs Number of buffer data vectors.
1514 * @param ofs Start and stop offsets for auth and cipher
1516 * @param iv IV virtual and IOVA addresses
1517 * @param digest digest virtual and IOVA addresses
1518 * @param aad_or_auth_iv AAD or auth IV virtual and IOVA addresses,
1519 * depends on the algorithm used.
1520 * @param user_data The user data.
1522 * - 1: The data vector is enqueued successfully.
1523 * - 0: The data vector is cached into the queue but is not processed
1524 * until rte_cryptodev_raw_enqueue_done() is called.
1525 * - negative integer: failure.
1527 typedef int (*cryptodev_sym_raw_enqueue_t)(
1528 void *qp, uint8_t *drv_ctx, struct rte_crypto_vec *data_vec,
1529 uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs,
1530 struct rte_crypto_va_iova_ptr *iv,
1531 struct rte_crypto_va_iova_ptr *digest,
1532 struct rte_crypto_va_iova_ptr *aad_or_auth_iv,
1536 * Inform the cryptodev queue pair to start processing or finish dequeuing all
1537 * enqueued/dequeued operations.
1539 * @param qp Driver specific queue pair data.
1540 * @param drv_ctx Driver specific context data.
1541 * @param n The total number of processed operations.
1543 * - On success return 0.
1544 * - On failure return negative integer.
1546 typedef int (*cryptodev_sym_raw_operation_done_t)(void *qp, uint8_t *drv_ctx,
1550 * Typedef that the user provided for the driver to get the dequeue count.
1551 * The function may return a fixed number or the number parsed from the user
1552 * data stored in the first processed operation.
1554 * @param user_data Dequeued user data.
1556 * - The number of operations to be dequeued.
1558 typedef uint32_t (*rte_cryptodev_raw_get_dequeue_count_t)(void *user_data);
1561 * Typedef that the user provided to deal with post dequeue operation, such
1562 * as filling status.
1564 * @param user_data Dequeued user data.
1565 * @param index Index number of the processed descriptor.
1566 * @param is_op_success Operation status provided by the driver.
1568 typedef void (*rte_cryptodev_raw_post_dequeue_t)(void *user_data,
1569 uint32_t index, uint8_t is_op_success);
1572 * Dequeue a burst of symmetric crypto processing.
1574 * @param qp Driver specific queue pair data.
1575 * @param drv_ctx Driver specific context data.
1576 * @param get_dequeue_count User provided callback function to
1577 * obtain dequeue operation count.
1578 * @param max_nb_to_dequeue When get_dequeue_count is NULL this
1579 * value is used to pass the maximum
1580 * number of operations to be dequeued.
1581 * @param post_dequeue User provided callback function to
1582 * post-process a dequeued operation.
1583 * @param out_user_data User data pointer array to be retrieve
1584 * from device queue. In case of
1585 * *is_user_data_array* is set there
1586 * should be enough room to store all
1588 * @param is_user_data_array Set 1 if every dequeued user data will
1589 * be written into out_user_data array.
1590 * Set 0 if only the first user data will
1591 * be written into out_user_data array.
1592 * @param n_success Driver written value to specific the
1593 * total successful operations count.
1594 * @param dequeue_status Driver written value to specify the
1595 * dequeue status. Possible values:
1596 * - 1: Successfully dequeued the number
1597 * of operations returned. The user
1598 * data previously set during enqueue
1599 * is stored in the "out_user_data".
1600 * - 0: The number of operations returned
1601 * are completed and the user data is
1602 * stored in the "out_user_data", but
1603 * they are not freed from the queue
1605 * rte_cryptodev_raw_dequeue_done()
1607 * - negative integer: Error occurred.
1609 * - The number of operations dequeued or completed but not freed from the
1610 * queue, depends on "dequeue_status" value.
1612 typedef uint32_t (*cryptodev_sym_raw_dequeue_burst_t)(void *qp,
1614 rte_cryptodev_raw_get_dequeue_count_t get_dequeue_count,
1615 uint32_t max_nb_to_dequeue,
1616 rte_cryptodev_raw_post_dequeue_t post_dequeue,
1617 void **out_user_data, uint8_t is_user_data_array,
1618 uint32_t *n_success, int *dequeue_status);
1621 * Dequeue a symmetric crypto processing.
1623 * @param qp Driver specific queue pair data.
1624 * @param drv_ctx Driver specific context data.
1625 * @param dequeue_status Driver written value to specify the
1626 * dequeue status. Possible values:
1627 * - 1: Successfully dequeued a operation.
1628 * The user data is returned.
1629 * - 0: The first operation in the queue
1630 * is completed and the user data
1631 * previously set during enqueue is
1632 * returned, but it is not freed from
1634 * rte_cryptodev_raw_dequeue_done() is
1636 * - negative integer: Error occurred.
1637 * @param op_status Driver written value to specify
1640 * - The user data pointer retrieved from device queue or NULL if no
1641 * operation is ready for dequeue.
1643 typedef void * (*cryptodev_sym_raw_dequeue_t)(
1644 void *qp, uint8_t *drv_ctx, int *dequeue_status,
1645 enum rte_crypto_op_status *op_status);
1648 * Context data for raw data-path API crypto process. The buffer of this
1649 * structure is to be allocated by the user application with the size equal
1650 * or bigger than rte_cryptodev_get_raw_dp_ctx_size() returned value.
1652 struct rte_crypto_raw_dp_ctx {
1655 cryptodev_sym_raw_enqueue_t enqueue;
1656 cryptodev_sym_raw_enqueue_burst_t enqueue_burst;
1657 cryptodev_sym_raw_operation_done_t enqueue_done;
1658 cryptodev_sym_raw_dequeue_t dequeue;
1659 cryptodev_sym_raw_dequeue_burst_t dequeue_burst;
1660 cryptodev_sym_raw_operation_done_t dequeue_done;
1662 /* Driver specific context data */
1663 __extension__ uint8_t drv_ctx_data[];
1667 * Configure raw data-path context data.
1670 * After the context data is configured, the user should call
1671 * rte_cryptodev_raw_attach_session() before using it in
1672 * rte_cryptodev_raw_enqueue/dequeue function call.
1674 * @param dev_id The device identifier.
1675 * @param qp_id The index of the queue pair from which to
1676 * retrieve processed packets. The value must be
1677 * in the range [0, nb_queue_pair - 1] previously
1678 * supplied to rte_cryptodev_configure().
1679 * @param ctx The raw data-path context data.
1680 * @param sess_type session type.
1681 * @param session_ctx Session context data.
1682 * @param is_update Set 0 if it is to initialize the ctx.
1683 * Set 1 if ctx is initialized and only to update
1684 * session context data.
1686 * - On success return 0.
1687 * - On failure return negative integer.
1691 rte_cryptodev_configure_raw_dp_ctx(uint8_t dev_id, uint16_t qp_id,
1692 struct rte_crypto_raw_dp_ctx *ctx,
1693 enum rte_crypto_op_sess_type sess_type,
1694 union rte_cryptodev_session_ctx session_ctx,
1698 * Enqueue a vectorized operation descriptor into the device queue but the
1699 * driver may or may not start processing until rte_cryptodev_raw_enqueue_done()
1702 * @param ctx The initialized raw data-path context data.
1703 * @param vec Vectorized operation descriptor.
1704 * @param ofs Start and stop offsets for auth and cipher
1706 * @param user_data The array of user data for dequeue later.
1707 * @param enqueue_status Driver written value to specify the
1708 * enqueue status. Possible values:
1709 * - 1: The number of operations returned are
1710 * enqueued successfully.
1711 * - 0: The number of operations returned are
1712 * cached into the queue but are not processed
1713 * until rte_cryptodev_raw_enqueue_done() is
1715 * - negative integer: Error occurred.
1717 * - The number of operations in the descriptor successfully enqueued or
1718 * cached into the queue but not enqueued yet, depends on the
1719 * "enqueue_status" value.
1723 rte_cryptodev_raw_enqueue_burst(struct rte_crypto_raw_dp_ctx *ctx,
1724 struct rte_crypto_sym_vec *vec, union rte_crypto_sym_ofs ofs,
1725 void **user_data, int *enqueue_status);
1728 * Enqueue single raw data vector into the device queue but the driver may or
1729 * may not start processing until rte_cryptodev_raw_enqueue_done() is called.
1731 * @param ctx The initialized raw data-path context data.
1732 * @param data_vec The buffer data vector.
1733 * @param n_data_vecs Number of buffer data vectors.
1734 * @param ofs Start and stop offsets for auth and cipher
1736 * @param iv IV virtual and IOVA addresses
1737 * @param digest digest virtual and IOVA addresses
1738 * @param aad_or_auth_iv AAD or auth IV virtual and IOVA addresses,
1739 * depends on the algorithm used.
1740 * @param user_data The user data.
1742 * - 1: The data vector is enqueued successfully.
1743 * - 0: The data vector is cached into the queue but is not processed
1744 * until rte_cryptodev_raw_enqueue_done() is called.
1745 * - negative integer: failure.
1748 static __rte_always_inline int
1749 rte_cryptodev_raw_enqueue(struct rte_crypto_raw_dp_ctx *ctx,
1750 struct rte_crypto_vec *data_vec, uint16_t n_data_vecs,
1751 union rte_crypto_sym_ofs ofs,
1752 struct rte_crypto_va_iova_ptr *iv,
1753 struct rte_crypto_va_iova_ptr *digest,
1754 struct rte_crypto_va_iova_ptr *aad_or_auth_iv,
1757 return (*ctx->enqueue)(ctx->qp_data, ctx->drv_ctx_data, data_vec,
1758 n_data_vecs, ofs, iv, digest, aad_or_auth_iv, user_data);
1762 * Start processing all enqueued operations from last
1763 * rte_cryptodev_configure_raw_dp_ctx() call.
1765 * @param ctx The initialized raw data-path context data.
1766 * @param n The number of operations cached.
1768 * - On success return 0.
1769 * - On failure return negative integer.
1773 rte_cryptodev_raw_enqueue_done(struct rte_crypto_raw_dp_ctx *ctx,
1777 * Dequeue a burst of symmetric crypto processing.
1779 * @param ctx The initialized raw data-path context
1781 * @param get_dequeue_count User provided callback function to
1782 * obtain dequeue operation count.
1783 * @param max_nb_to_dequeue When get_dequeue_count is NULL this
1784 * value is used to pass the maximum
1785 * number of operations to be dequeued.
1786 * @param post_dequeue User provided callback function to
1787 * post-process a dequeued operation.
1788 * @param out_user_data User data pointer array to be retrieve
1789 * from device queue. In case of
1790 * *is_user_data_array* is set there
1791 * should be enough room to store all
1793 * @param is_user_data_array Set 1 if every dequeued user data will
1794 * be written into out_user_data array.
1795 * Set 0 if only the first user data will
1796 * be written into out_user_data array.
1797 * @param n_success Driver written value to specific the
1798 * total successful operations count.
1799 * @param dequeue_status Driver written value to specify the
1800 * dequeue status. Possible values:
1801 * - 1: Successfully dequeued the number
1802 * of operations returned. The user
1803 * data previously set during enqueue
1804 * is stored in the "out_user_data".
1805 * - 0: The number of operations returned
1806 * are completed and the user data is
1807 * stored in the "out_user_data", but
1808 * they are not freed from the queue
1810 * rte_cryptodev_raw_dequeue_done()
1812 * - negative integer: Error occurred.
1814 * - The number of operations dequeued or completed but not freed from the
1815 * queue, depends on "dequeue_status" value.
1819 rte_cryptodev_raw_dequeue_burst(struct rte_crypto_raw_dp_ctx *ctx,
1820 rte_cryptodev_raw_get_dequeue_count_t get_dequeue_count,
1821 uint32_t max_nb_to_dequeue,
1822 rte_cryptodev_raw_post_dequeue_t post_dequeue,
1823 void **out_user_data, uint8_t is_user_data_array,
1824 uint32_t *n_success, int *dequeue_status);
1827 * Dequeue a symmetric crypto processing.
1829 * @param ctx The initialized raw data-path context
1831 * @param dequeue_status Driver written value to specify the
1832 * dequeue status. Possible values:
1833 * - 1: Successfully dequeued a operation.
1834 * The user data is returned.
1835 * - 0: The first operation in the queue
1836 * is completed and the user data
1837 * previously set during enqueue is
1838 * returned, but it is not freed from
1840 * rte_cryptodev_raw_dequeue_done() is
1842 * - negative integer: Error occurred.
1843 * @param op_status Driver written value to specify
1846 * - The user data pointer retrieved from device queue or NULL if no
1847 * operation is ready for dequeue.
1850 static __rte_always_inline void *
1851 rte_cryptodev_raw_dequeue(struct rte_crypto_raw_dp_ctx *ctx,
1852 int *dequeue_status, enum rte_crypto_op_status *op_status)
1854 return (*ctx->dequeue)(ctx->qp_data, ctx->drv_ctx_data, dequeue_status,
1859 * Inform the queue pair dequeue operations is finished.
1861 * @param ctx The initialized raw data-path context data.
1862 * @param n The number of operations.
1864 * - On success return 0.
1865 * - On failure return negative integer.
1869 rte_cryptodev_raw_dequeue_done(struct rte_crypto_raw_dp_ctx *ctx,
1873 * Add a user callback for a given crypto device and queue pair which will be
1874 * called on crypto ops enqueue.
1876 * This API configures a function to be called for each burst of crypto ops
1877 * received on a given crypto device queue pair. The return value is a pointer
1878 * that can be used later to remove the callback using
1879 * rte_cryptodev_remove_enq_callback().
1881 * Callbacks registered by application would not survive
1882 * rte_cryptodev_configure() as it reinitializes the callback list.
1883 * It is user responsibility to remove all installed callbacks before
1884 * calling rte_cryptodev_configure() to avoid possible memory leakage.
1885 * Application is expected to call add API after rte_cryptodev_configure().
1887 * Multiple functions can be registered per queue pair & they are called
1888 * in the order they were added. The API does not restrict on maximum number
1891 * @param dev_id The identifier of the device.
1892 * @param qp_id The index of the queue pair on which ops are
1893 * to be enqueued for processing. The value
1894 * must be in the range [0, nb_queue_pairs - 1]
1895 * previously supplied to
1896 * *rte_cryptodev_configure*.
1897 * @param cb_fn The callback function
1898 * @param cb_arg A generic pointer parameter which will be passed
1899 * to each invocation of the callback function on
1900 * this crypto device and queue pair.
1903 * - NULL on error & rte_errno will contain the error code.
1904 * - On success, a pointer value which can later be used to remove the
1909 struct rte_cryptodev_cb *
1910 rte_cryptodev_add_enq_callback(uint8_t dev_id,
1912 rte_cryptodev_callback_fn cb_fn,
1916 * Remove a user callback function for given crypto device and queue pair.
1918 * This function is used to remove enqueue callbacks that were added to a
1919 * crypto device queue pair using rte_cryptodev_add_enq_callback().
1923 * @param dev_id The identifier of the device.
1924 * @param qp_id The index of the queue pair on which ops are
1925 * to be enqueued. The value must be in the
1926 * range [0, nb_queue_pairs - 1] previously
1927 * supplied to *rte_cryptodev_configure*.
1928 * @param cb Pointer to user supplied callback created via
1929 * rte_cryptodev_add_enq_callback().
1932 * - 0: Success. Callback was removed.
1933 * - <0: The dev_id or the qp_id is out of range, or the callback
1934 * is NULL or not found for the crypto device queue pair.
1938 int rte_cryptodev_remove_enq_callback(uint8_t dev_id,
1940 struct rte_cryptodev_cb *cb);
1943 * Add a user callback for a given crypto device and queue pair which will be
1944 * called on crypto ops dequeue.
1946 * This API configures a function to be called for each burst of crypto ops
1947 * received on a given crypto device queue pair. The return value is a pointer
1948 * that can be used later to remove the callback using
1949 * rte_cryptodev_remove_deq_callback().
1951 * Callbacks registered by application would not survive
1952 * rte_cryptodev_configure() as it reinitializes the callback list.
1953 * It is user responsibility to remove all installed callbacks before
1954 * calling rte_cryptodev_configure() to avoid possible memory leakage.
1955 * Application is expected to call add API after rte_cryptodev_configure().
1957 * Multiple functions can be registered per queue pair & they are called
1958 * in the order they were added. The API does not restrict on maximum number
1961 * @param dev_id The identifier of the device.
1962 * @param qp_id The index of the queue pair on which ops are
1963 * to be dequeued. The value must be in the
1964 * range [0, nb_queue_pairs - 1] previously
1965 * supplied to *rte_cryptodev_configure*.
1966 * @param cb_fn The callback function
1967 * @param cb_arg A generic pointer parameter which will be passed
1968 * to each invocation of the callback function on
1969 * this crypto device and queue pair.
1972 * - NULL on error & rte_errno will contain the error code.
1973 * - On success, a pointer value which can later be used to remove the
1978 struct rte_cryptodev_cb *
1979 rte_cryptodev_add_deq_callback(uint8_t dev_id,
1981 rte_cryptodev_callback_fn cb_fn,
1985 * Remove a user callback function for given crypto device and queue pair.
1987 * This function is used to remove dequeue callbacks that were added to a
1988 * crypto device queue pair using rte_cryptodev_add_deq_callback().
1992 * @param dev_id The identifier of the device.
1993 * @param qp_id The index of the queue pair on which ops are
1994 * to be dequeued. The value must be in the
1995 * range [0, nb_queue_pairs - 1] previously
1996 * supplied to *rte_cryptodev_configure*.
1997 * @param cb Pointer to user supplied callback created via
1998 * rte_cryptodev_add_deq_callback().
2001 * - 0: Success. Callback was removed.
2002 * - <0: The dev_id or the qp_id is out of range, or the callback
2003 * is NULL or not found for the crypto device queue pair.
2006 int rte_cryptodev_remove_deq_callback(uint8_t dev_id,
2008 struct rte_cryptodev_cb *cb);
2014 #endif /* _RTE_CRYPTODEV_H_ */