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)
105 #define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_1_MEGABYTES RTE_BIT32(2)
108 * Symmetric Crypto Capability
110 struct rte_cryptodev_symmetric_capability {
111 enum rte_crypto_sym_xform_type xform_type;
112 /**< Transform type : Authentication / Cipher / AEAD */
116 enum rte_crypto_auth_algorithm algo;
117 /**< authentication algorithm */
119 /**< algorithm block size */
120 struct rte_crypto_param_range key_size;
121 /**< auth key size range */
122 struct rte_crypto_param_range digest_size;
123 /**< digest size range */
124 struct rte_crypto_param_range aad_size;
125 /**< Additional authentication data size range */
126 struct rte_crypto_param_range iv_size;
127 /**< Initialisation vector data size range */
129 /**< Symmetric Authentication transform capabilities */
131 enum rte_crypto_cipher_algorithm algo;
132 /**< cipher algorithm */
134 /**< algorithm block size */
135 struct rte_crypto_param_range key_size;
136 /**< cipher key size range */
137 struct rte_crypto_param_range iv_size;
138 /**< Initialisation vector data size range */
139 uint32_t dataunit_set;
141 * Supported data-unit lengths:
142 * RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_* bits
143 * or 0 for lengths defined in the algorithm standard.
146 /**< Symmetric Cipher transform capabilities */
148 enum rte_crypto_aead_algorithm algo;
149 /**< AEAD algorithm */
151 /**< algorithm block size */
152 struct rte_crypto_param_range key_size;
153 /**< AEAD key size range */
154 struct rte_crypto_param_range digest_size;
155 /**< digest size range */
156 struct rte_crypto_param_range aad_size;
157 /**< Additional authentication data size range */
158 struct rte_crypto_param_range iv_size;
159 /**< Initialisation vector data size range */
165 * Asymmetric Xform Crypto Capability
168 struct rte_cryptodev_asymmetric_xform_capability {
169 enum rte_crypto_asym_xform_type xform_type;
170 /**< Transform type: RSA/MODEXP/DH/DSA/MODINV */
173 /**< bitmask for supported rte_crypto_asym_op_type */
177 struct rte_crypto_param_range modlen;
178 /**< Range of modulus length supported by modulus based xform.
179 * Value 0 mean implementation default
185 * Asymmetric Crypto Capability
188 struct rte_cryptodev_asymmetric_capability {
189 struct rte_cryptodev_asymmetric_xform_capability xform_capa;
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 */
202 struct rte_cryptodev_asymmetric_capability asym;
203 /**< Asymmetric operation capability parameters */
207 /** Structure used to describe crypto algorithms */
208 struct rte_cryptodev_sym_capability_idx {
209 enum rte_crypto_sym_xform_type type;
211 enum rte_crypto_cipher_algorithm cipher;
212 enum rte_crypto_auth_algorithm auth;
213 enum rte_crypto_aead_algorithm aead;
218 * Structure used to describe asymmetric crypto xforms
219 * Each xform maps to one asym algorithm.
222 struct rte_cryptodev_asym_capability_idx {
223 enum rte_crypto_asym_xform_type type;
224 /**< Asymmetric xform (algo) type */
228 * Provide capabilities available for defined device and algorithm
230 * @param dev_id The identifier of the device.
231 * @param idx Description of crypto algorithms.
234 * - Return description of the symmetric crypto capability if exist.
235 * - Return NULL if the capability not exist.
237 const struct rte_cryptodev_symmetric_capability *
238 rte_cryptodev_sym_capability_get(uint8_t dev_id,
239 const struct rte_cryptodev_sym_capability_idx *idx);
242 * Provide capabilities available for defined device and xform
244 * @param dev_id The identifier of the device.
245 * @param idx Description of asym crypto xform.
248 * - Return description of the asymmetric crypto capability if exist.
249 * - Return NULL if the capability not exist.
252 const struct rte_cryptodev_asymmetric_xform_capability *
253 rte_cryptodev_asym_capability_get(uint8_t dev_id,
254 const struct rte_cryptodev_asym_capability_idx *idx);
257 * Check if key size and initial vector are supported
258 * in crypto cipher capability
260 * @param capability Description of the symmetric crypto capability.
261 * @param key_size Cipher key size.
262 * @param iv_size Cipher initial vector size.
265 * - Return 0 if the parameters are in range of the capability.
266 * - Return -1 if the parameters are out of range of the capability.
269 rte_cryptodev_sym_capability_check_cipher(
270 const struct rte_cryptodev_symmetric_capability *capability,
271 uint16_t key_size, uint16_t iv_size);
274 * Check if key size and initial vector are supported
275 * in crypto auth capability
277 * @param capability Description of the symmetric crypto capability.
278 * @param key_size Auth key size.
279 * @param digest_size Auth digest size.
280 * @param iv_size Auth initial vector size.
283 * - Return 0 if the parameters are in range of the capability.
284 * - Return -1 if the parameters are out of range of the capability.
287 rte_cryptodev_sym_capability_check_auth(
288 const struct rte_cryptodev_symmetric_capability *capability,
289 uint16_t key_size, uint16_t digest_size, uint16_t iv_size);
292 * Check if key, digest, AAD and initial vector sizes are supported
293 * in crypto AEAD capability
295 * @param capability Description of the symmetric crypto capability.
296 * @param key_size AEAD key size.
297 * @param digest_size AEAD digest size.
298 * @param aad_size AEAD AAD size.
299 * @param iv_size AEAD IV size.
302 * - Return 0 if the parameters are in range of the capability.
303 * - Return -1 if the parameters are out of range of the capability.
306 rte_cryptodev_sym_capability_check_aead(
307 const struct rte_cryptodev_symmetric_capability *capability,
308 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
312 * Check if op type is supported
314 * @param capability Description of the asymmetric crypto capability.
315 * @param op_type op type
318 * - Return 1 if the op type is supported
319 * - Return 0 if unsupported
323 rte_cryptodev_asym_xform_capability_check_optype(
324 const struct rte_cryptodev_asymmetric_xform_capability *capability,
325 enum rte_crypto_asym_op_type op_type);
328 * Check if modulus length is in supported range
330 * @param capability Description of the asymmetric crypto capability.
331 * @param modlen modulus length.
334 * - Return 0 if the parameters are in range of the capability.
335 * - Return -1 if the parameters are out of range of the capability.
339 rte_cryptodev_asym_xform_capability_check_modlen(
340 const struct rte_cryptodev_asymmetric_xform_capability *capability,
344 * Provide the cipher algorithm enum, given an algorithm string
346 * @param algo_enum A pointer to the cipher algorithm
348 * @param algo_string Authentication algo string
351 * - Return -1 if string is not valid
352 * - Return 0 is the string is valid
355 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
356 const char *algo_string);
359 * Provide the authentication algorithm enum, given an algorithm string
361 * @param algo_enum A pointer to the authentication algorithm
363 * @param algo_string Authentication algo string
366 * - Return -1 if string is not valid
367 * - Return 0 is the string is valid
370 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
371 const char *algo_string);
374 * Provide the AEAD algorithm enum, given an algorithm string
376 * @param algo_enum A pointer to the AEAD algorithm
378 * @param algo_string AEAD algorithm string
381 * - Return -1 if string is not valid
382 * - Return 0 is the string is valid
385 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
386 const char *algo_string);
389 * Provide the Asymmetric xform enum, given an xform string
391 * @param xform_enum A pointer to the xform type
393 * @param xform_string xform string
396 * - Return -1 if string is not valid
397 * - Return 0 if the string is valid
401 rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
402 const char *xform_string);
405 /** Macro used at end of crypto PMD list */
406 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
407 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
411 * Crypto device supported feature flags
414 * New features flags should be added to the end of the list
416 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
418 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
419 /**< Symmetric crypto operations are supported */
420 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
421 /**< Asymmetric crypto operations are supported */
422 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
423 /**< Chaining symmetric crypto operations are supported */
424 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
425 /**< Utilises CPU SIMD SSE instructions */
426 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
427 /**< Utilises CPU SIMD AVX instructions */
428 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
429 /**< Utilises CPU SIMD AVX2 instructions */
430 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
431 /**< Utilises CPU AES-NI instructions */
432 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
433 /**< Operations are off-loaded to an
434 * external hardware accelerator
436 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
437 /**< Utilises CPU SIMD AVX512 instructions */
438 #define RTE_CRYPTODEV_FF_IN_PLACE_SGL (1ULL << 9)
439 /**< In-place Scatter-gather (SGL) buffers, with multiple segments,
442 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT (1ULL << 10)
443 /**< Out-of-place Scatter-gather (SGL) buffers are
444 * supported in input and output
446 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT (1ULL << 11)
447 /**< Out-of-place Scatter-gather (SGL) buffers are supported
448 * in input, combined with linear buffers (LB), with a
449 * single segment in output
451 #define RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT (1ULL << 12)
452 /**< Out-of-place Scatter-gather (SGL) buffers are supported
453 * in output, combined with linear buffers (LB) in input
455 #define RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT (1ULL << 13)
456 /**< Out-of-place linear buffers (LB) are supported in input and output */
457 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 14)
458 /**< Utilises CPU NEON instructions */
459 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 15)
460 /**< Utilises ARM CPU Cryptographic Extensions */
461 #define RTE_CRYPTODEV_FF_SECURITY (1ULL << 16)
462 /**< Support Security Protocol Processing */
463 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP (1ULL << 17)
464 /**< Support RSA Private Key OP with exponent */
465 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT (1ULL << 18)
466 /**< Support RSA Private Key OP with CRT (quintuple) Keys */
467 #define RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED (1ULL << 19)
468 /**< Support encrypted-digest operations where digest is appended to data */
469 #define RTE_CRYPTODEV_FF_ASYM_SESSIONLESS (1ULL << 20)
470 /**< Support asymmetric session-less operations */
471 #define RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO (1ULL << 21)
472 /**< Support symmetric cpu-crypto processing */
473 #define RTE_CRYPTODEV_FF_SYM_SESSIONLESS (1ULL << 22)
474 /**< Support symmetric session-less operations */
475 #define RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA (1ULL << 23)
476 /**< Support operations on data which is not byte aligned */
477 #define RTE_CRYPTODEV_FF_SYM_RAW_DP (1ULL << 24)
478 /**< Support accelerator specific symmetric raw data-path APIs */
479 #define RTE_CRYPTODEV_FF_CIPHER_MULTIPLE_DATA_UNITS (1ULL << 25)
480 /**< Support operations on multiple data-units message */
481 #define RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY (1ULL << 26)
482 /**< Support wrapped key in cipher xform */
483 #define RTE_CRYPTODEV_FF_SECURITY_INNER_CSUM (1ULL << 27)
484 /**< Support inner checksum computation/verification */
487 * Get the name of a crypto device feature flag
489 * @param flag The mask describing the flag.
492 * The name of this flag, or NULL if it's not a valid feature flag.
496 rte_cryptodev_get_feature_name(uint64_t flag);
498 /** Crypto device information */
499 struct rte_cryptodev_info {
500 const char *driver_name; /**< Driver name. */
501 uint8_t driver_id; /**< Driver identifier */
502 struct rte_device *device; /**< Generic device information. */
504 uint64_t feature_flags;
505 /**< Feature flags exposes HW/SW features for the given device */
507 const struct rte_cryptodev_capabilities *capabilities;
508 /**< Array of devices supported capabilities */
510 unsigned max_nb_queue_pairs;
511 /**< Maximum number of queues pairs supported by device. */
513 uint16_t min_mbuf_headroom_req;
514 /**< Minimum mbuf headroom required by device */
516 uint16_t min_mbuf_tailroom_req;
517 /**< Minimum mbuf tailroom required by device */
520 unsigned max_nb_sessions;
521 /**< Maximum number of sessions supported by device.
522 * If 0, the device does not have any limitation in
523 * number of sessions that can be used.
528 #define RTE_CRYPTODEV_DETACHED (0)
529 #define RTE_CRYPTODEV_ATTACHED (1)
531 /** Definitions of Crypto device event types */
532 enum rte_cryptodev_event_type {
533 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
534 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
535 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
538 /** Crypto device queue pair configuration structure. */
539 struct rte_cryptodev_qp_conf {
540 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
541 struct rte_mempool *mp_session;
542 /**< The mempool for creating session in sessionless mode */
543 struct rte_mempool *mp_session_private;
544 /**< The mempool for creating sess private data in sessionless mode */
548 * Function type used for processing crypto ops when enqueue/dequeue burst is
551 * The callback function is called on enqueue/dequeue burst immediately.
553 * @param dev_id The identifier of the device.
554 * @param qp_id The index of the queue pair on which ops are
555 * enqueued/dequeued. The value must be in the
556 * range [0, nb_queue_pairs - 1] previously
557 * supplied to *rte_cryptodev_configure*.
558 * @param ops The address of an array of *nb_ops* pointers
559 * to *rte_crypto_op* structures which contain
560 * the crypto operations to be processed.
561 * @param nb_ops The number of operations to process.
562 * @param user_param The arbitrary user parameter passed in by the
563 * application when the callback was originally
565 * @return The number of ops to be enqueued to the
568 typedef uint16_t (*rte_cryptodev_callback_fn)(uint16_t dev_id, uint16_t qp_id,
569 struct rte_crypto_op **ops, uint16_t nb_ops, void *user_param);
572 * Typedef for application callback function to be registered by application
573 * software for notification of device events
575 * @param dev_id Crypto device identifier
576 * @param event Crypto device event to register for notification of.
577 * @param cb_arg User specified parameter to be passed as to passed to
578 * users callback function.
580 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
581 enum rte_cryptodev_event_type event, void *cb_arg);
584 /** Crypto Device statistics */
585 struct rte_cryptodev_stats {
586 uint64_t enqueued_count;
587 /**< Count of all operations enqueued */
588 uint64_t dequeued_count;
589 /**< Count of all operations dequeued */
591 uint64_t enqueue_err_count;
592 /**< Total error count on operations enqueued */
593 uint64_t dequeue_err_count;
594 /**< Total error count on operations dequeued */
597 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
598 /**< Max length of name of crypto PMD */
601 * Get the device identifier for the named crypto device.
603 * @param name device name to select the device structure.
606 * - Returns crypto device identifier on success.
607 * - Return -1 on failure to find named crypto device.
610 rte_cryptodev_get_dev_id(const char *name);
613 * Get the crypto device name given a device identifier.
616 * The identifier of the device
619 * - Returns crypto device name.
620 * - Returns NULL if crypto device is not present.
623 rte_cryptodev_name_get(uint8_t dev_id);
626 * Get the total number of crypto devices that have been successfully
630 * - The total number of usable crypto devices.
633 rte_cryptodev_count(void);
636 * Get number of crypto device defined type.
638 * @param driver_id driver identifier.
641 * Returns number of crypto device.
644 rte_cryptodev_device_count_by_driver(uint8_t driver_id);
647 * Get number and identifiers of attached crypto devices that
648 * use the same crypto driver.
650 * @param driver_name driver name.
651 * @param devices output devices identifiers.
652 * @param nb_devices maximal number of devices.
655 * Returns number of attached crypto device.
658 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
661 * Return the NUMA socket to which a device is connected
664 * The identifier of the device
666 * The NUMA socket id to which the device is connected or
667 * a default of zero if the socket could not be determined.
668 * -1 if returned is the dev_id value is out of range.
671 rte_cryptodev_socket_id(uint8_t dev_id);
673 /** Crypto device configuration structure */
674 struct rte_cryptodev_config {
675 int socket_id; /**< Socket to allocate resources on */
676 uint16_t nb_queue_pairs;
677 /**< Number of queue pairs to configure on device */
679 /**< Feature flags to be disabled. Only the following features are
680 * allowed to be disabled,
681 * - RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO
682 * - RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO
683 * - RTE_CRYTPODEV_FF_SECURITY
688 * Configure a device.
690 * This function must be invoked first before any other function in the
691 * API. This function can also be re-invoked when a device is in the
694 * @param dev_id The identifier of the device to configure.
695 * @param config The crypto device configuration structure.
698 * - 0: Success, device configured.
699 * - <0: Error code returned by the driver configuration function.
702 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
707 * The device start step is the last one and consists of setting the configured
708 * offload features and in starting the transmit and the receive units of the
710 * On success, all basic functions exported by the API (link status,
711 * receive/transmit, and so on) can be invoked.
714 * The identifier of the device.
716 * - 0: Success, device started.
717 * - <0: Error code of the driver device start function.
720 rte_cryptodev_start(uint8_t dev_id);
723 * Stop an device. The device can be restarted with a call to
724 * rte_cryptodev_start()
726 * @param dev_id The identifier of the device.
729 rte_cryptodev_stop(uint8_t dev_id);
732 * Close an device. The device cannot be restarted!
734 * @param dev_id The identifier of the device.
737 * - 0 on successfully closing device
738 * - <0 on failure to close device
741 rte_cryptodev_close(uint8_t dev_id);
744 * Allocate and set up a receive queue pair for a device.
747 * @param dev_id The identifier of the device.
748 * @param queue_pair_id The index of the queue pairs to set up. The
749 * value must be in the range [0, nb_queue_pair
750 * - 1] previously supplied to
751 * rte_cryptodev_configure().
752 * @param qp_conf The pointer to the configuration data to be
753 * used for the queue pair.
754 * @param socket_id The *socket_id* argument is the socket
755 * identifier in case of NUMA. The value can be
756 * *SOCKET_ID_ANY* if there is no NUMA constraint
757 * for the DMA memory allocated for the receive
761 * - 0: Success, queue pair correctly set up.
762 * - <0: Queue pair configuration failed
765 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
766 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
769 * Get the status of queue pairs setup on a specific crypto device
771 * @param dev_id Crypto device identifier.
772 * @param queue_pair_id The index of the queue pairs to set up. The
773 * value must be in the range [0, nb_queue_pair
774 * - 1] previously supplied to
775 * rte_cryptodev_configure().
777 * - 0: qp was not configured
778 * - 1: qp was configured
779 * - -EINVAL: device was not configured
783 rte_cryptodev_get_qp_status(uint8_t dev_id, uint16_t queue_pair_id);
786 * Get the number of queue pairs on a specific crypto device
788 * @param dev_id Crypto device identifier.
790 * - The number of configured queue pairs.
793 rte_cryptodev_queue_pair_count(uint8_t dev_id);
797 * Retrieve the general I/O statistics of a device.
799 * @param dev_id The identifier of the device.
800 * @param stats A pointer to a structure of type
801 * *rte_cryptodev_stats* to be filled with the
802 * values of device counters.
804 * - Zero if successful.
805 * - Non-zero otherwise.
808 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
811 * Reset the general I/O statistics of a device.
813 * @param dev_id The identifier of the device.
816 rte_cryptodev_stats_reset(uint8_t dev_id);
819 * Retrieve the contextual information of a device.
821 * @param dev_id The identifier of the device.
822 * @param dev_info A pointer to a structure of type
823 * *rte_cryptodev_info* to be filled with the
824 * contextual information of the device.
826 * @note The capabilities field of dev_info is set to point to the first
827 * element of an array of struct rte_cryptodev_capabilities. The element after
828 * the last valid element has it's op field set to
829 * RTE_CRYPTO_OP_TYPE_UNDEFINED.
832 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
836 * Register a callback function for specific device id.
838 * @param dev_id Device id.
839 * @param event Event interested.
840 * @param cb_fn User supplied callback function to be called.
841 * @param cb_arg Pointer to the parameters for the registered
845 * - On success, zero.
846 * - On failure, a negative value.
849 rte_cryptodev_callback_register(uint8_t dev_id,
850 enum rte_cryptodev_event_type event,
851 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
854 * Unregister a callback function for specific device id.
856 * @param dev_id The device identifier.
857 * @param event Event interested.
858 * @param cb_fn User supplied callback function to be called.
859 * @param cb_arg Pointer to the parameters for the registered
863 * - On success, zero.
864 * - On failure, a negative value.
867 rte_cryptodev_callback_unregister(uint8_t dev_id,
868 enum rte_cryptodev_event_type event,
869 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
871 struct rte_cryptodev_callback;
873 /** Structure to keep track of registered callbacks */
874 RTE_TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
877 * Structure used to hold information about the callbacks to be called for a
878 * queue pair on enqueue/dequeue.
880 struct rte_cryptodev_cb {
881 struct rte_cryptodev_cb *next;
882 /**< Pointer to next callback */
883 rte_cryptodev_callback_fn fn;
884 /**< Pointer to callback function */
886 /**< Pointer to argument */
891 * Structure used to hold information about the RCU for a queue pair.
893 struct rte_cryptodev_cb_rcu {
894 struct rte_cryptodev_cb *next;
895 /**< Pointer to next callback */
896 struct rte_rcu_qsbr *qsbr;
897 /**< RCU QSBR variable per queue pair */
901 rte_cryptodev_get_sec_ctx(uint8_t dev_id);
903 /** Cryptodev symmetric crypto session
904 * Each session is derived from a fixed xform chain. Therefore each session
905 * has a fixed algo, key, op-type, digest_len etc.
907 struct rte_cryptodev_sym_session {
908 uint64_t opaque_data;
909 /**< Can be used for external metadata */
911 /**< number of elements in sess_data array */
912 uint16_t user_data_sz;
913 /**< session user data will be placed after sess_data */
914 __extension__ struct {
918 /**< Driver specific session material, variable size */
922 * Create a symmetric session mempool.
925 * The unique mempool name.
927 * The number of elements in the mempool.
929 * The size of the element. This value will be ignored if it is smaller than
930 * the minimum session header size required for the system. For the user who
931 * want to use the same mempool for sym session and session private data it
932 * can be the maximum value of all existing devices' private data and session
935 * The number of per-lcore cache elements
937 * The private data size of each session.
939 * The *socket_id* argument is the socket identifier in the case of
940 * NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
941 * constraint for the reserved zone.
944 * - On success return size of the session
945 * - On failure returns 0
949 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
950 uint32_t elt_size, uint32_t cache_size, uint16_t priv_size,
954 * Create an asymmetric session mempool.
957 * The unique mempool name.
959 * The number of elements in the mempool.
961 * The number of per-lcore cache elements
962 * @param user_data_size
963 * The size of user data to be placed after session private data.
965 * The *socket_id* argument is the socket identifier in the case of
966 * NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
967 * constraint for the reserved zone.
970 * - On success return mempool
971 * - On failure returns NULL
975 rte_cryptodev_asym_session_pool_create(const char *name, uint32_t nb_elts,
976 uint32_t cache_size, uint16_t user_data_size, int socket_id);
979 * Create symmetric crypto session header (generic with no private data)
981 * @param mempool Symmetric session mempool to allocate session
984 * - On success return pointer to sym-session
985 * - On failure returns NULL
987 struct rte_cryptodev_sym_session *
988 rte_cryptodev_sym_session_create(struct rte_mempool *mempool);
991 * Create and initialise an asymmetric crypto session structure.
992 * Calls the PMD to configure the private session data.
994 * @param dev_id ID of device that we want the session to be used on
995 * @param xforms Asymmetric crypto transform operations to apply on flow
996 * processed with this session
997 * @param mp mempool to allocate asymmetric session
1000 * - On success return pointer to asym-session
1001 * - On failure returns NULL
1005 rte_cryptodev_asym_session_create(uint8_t dev_id,
1006 struct rte_crypto_asym_xform *xforms, struct rte_mempool *mp);
1009 * Frees symmetric crypto session header, after checking that all
1010 * the device private data has been freed, returning it
1011 * to its original mempool.
1013 * @param sess Session header to be freed.
1016 * - 0 if successful.
1017 * - -EINVAL if session is NULL.
1018 * - -EBUSY if not all device private data has been freed.
1021 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);
1024 * Clears and frees asymmetric crypto session header and private data,
1025 * returning it to its original mempool.
1027 * @param dev_id ID of device that uses the asymmetric session.
1028 * @param sess Session header to be freed.
1031 * - 0 if successful.
1032 * - -EINVAL if device is invalid or session is NULL.
1036 rte_cryptodev_asym_session_free(uint8_t dev_id, void *sess);
1039 * Fill out private data for the device id, based on its device type.
1041 * @param dev_id ID of device that we want the session to be used on
1042 * @param sess Session where the private data will be attached to
1043 * @param xforms Symmetric crypto transform operations to apply on flow
1044 * processed with this session
1045 * @param mempool Mempool where the private data is allocated.
1048 * - On success, zero.
1049 * - -EINVAL if input parameters are invalid.
1050 * - -ENOTSUP if crypto device does not support the crypto transform or
1051 * does not support symmetric operations.
1052 * - -ENOMEM if the private session could not be allocated.
1055 rte_cryptodev_sym_session_init(uint8_t dev_id,
1056 struct rte_cryptodev_sym_session *sess,
1057 struct rte_crypto_sym_xform *xforms,
1058 struct rte_mempool *mempool);
1061 * Frees private data for the device id, based on its device type,
1062 * returning it to its mempool. It is the application's responsibility
1063 * to ensure that private session data is not cleared while there are
1064 * still in-flight operations using it.
1066 * @param dev_id ID of device that uses the session.
1067 * @param sess Session containing the reference to the private data
1070 * - 0 if successful.
1071 * - -EINVAL if device is invalid or session is NULL.
1072 * - -ENOTSUP if crypto device does not support symmetric operations.
1075 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1076 struct rte_cryptodev_sym_session *sess);
1079 * Get the size of the header session, for all registered drivers excluding
1080 * the user data size.
1083 * Size of the symmetric header session.
1086 rte_cryptodev_sym_get_header_session_size(void);
1089 * Get the size of the header session from created session.
1092 * The sym cryptodev session pointer
1095 * - If sess is not NULL, return the size of the header session including
1096 * the private data size defined within sess.
1097 * - If sess is NULL, return 0.
1101 rte_cryptodev_sym_get_existing_header_session_size(
1102 struct rte_cryptodev_sym_session *sess);
1105 * Get the size of the asymmetric session header.
1108 * Size of the asymmetric header session.
1112 rte_cryptodev_asym_get_header_session_size(void);
1115 * Get the size of the private symmetric session data
1118 * @param dev_id The device identifier.
1121 * - Size of the private data, if successful
1122 * - 0 if device is invalid or does not have private
1126 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id);
1129 * Get the size of the private data for asymmetric session
1132 * @param dev_id The device identifier.
1135 * - Size of the asymmetric private data, if successful
1136 * - 0 if device is invalid or does not have private session
1140 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id);
1143 * Validate if the crypto device index is valid attached crypto device.
1145 * @param dev_id Crypto device index.
1148 * - If the device index is valid (1) or not (0).
1151 rte_cryptodev_is_valid_dev(uint8_t dev_id);
1154 * Provide driver identifier.
1157 * The pointer to a driver name.
1159 * The driver type identifier or -1 if no driver found
1161 int rte_cryptodev_driver_id_get(const char *name);
1164 * Provide driver name.
1167 * The driver identifier.
1169 * The driver name or null if no driver found
1171 const char *rte_cryptodev_driver_name_get(uint8_t driver_id);
1174 * Store user data in a session.
1176 * @param sess Session pointer allocated by
1177 * *rte_cryptodev_sym_session_create*.
1178 * @param data Pointer to the user data.
1179 * @param size Size of the user data.
1182 * - On success, zero.
1183 * - On failure, a negative value.
1187 rte_cryptodev_sym_session_set_user_data(
1188 struct rte_cryptodev_sym_session *sess,
1193 * Get user data stored in a session.
1195 * @param sess Session pointer allocated by
1196 * *rte_cryptodev_sym_session_create*.
1199 * - On success return pointer to user data.
1200 * - On failure returns NULL.
1204 rte_cryptodev_sym_session_get_user_data(
1205 struct rte_cryptodev_sym_session *sess);
1208 * Store user data in an asymmetric session.
1210 * @param sess Session pointer allocated by
1211 * *rte_cryptodev_asym_session_create*.
1212 * @param data Pointer to the user data.
1213 * @param size Size of the user data.
1216 * - On success, zero.
1217 * - -EINVAL if the session pointer is invalid.
1218 * - -ENOMEM if the available user data size is smaller than the size parameter.
1222 rte_cryptodev_asym_session_set_user_data(void *sess, void *data, uint16_t size);
1225 * Get user data stored in an asymmetric session.
1227 * @param sess Session pointer allocated by
1228 * *rte_cryptodev_asym_session_create*.
1231 * - On success return pointer to user data.
1232 * - On failure returns NULL.
1236 rte_cryptodev_asym_session_get_user_data(void *sess);
1239 * Perform actual crypto processing (encrypt/digest or auth/decrypt)
1240 * on user provided data.
1242 * @param dev_id The device identifier.
1243 * @param sess Cryptodev session structure
1244 * @param ofs Start and stop offsets for auth and cipher operations
1245 * @param vec Vectorized operation descriptor
1248 * - Returns number of successfully processed packets.
1252 rte_cryptodev_sym_cpu_crypto_process(uint8_t dev_id,
1253 struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs ofs,
1254 struct rte_crypto_sym_vec *vec);
1257 * Get the size of the raw data-path context buffer.
1259 * @param dev_id The device identifier.
1262 * - If the device supports raw data-path APIs, return the context size.
1263 * - If the device does not support the APIs, return -1.
1267 rte_cryptodev_get_raw_dp_ctx_size(uint8_t dev_id);
1270 * Union of different crypto session types, including session-less xform
1273 union rte_cryptodev_session_ctx {
1274 struct rte_cryptodev_sym_session *crypto_sess;
1275 struct rte_crypto_sym_xform *xform;
1276 struct rte_security_session *sec_sess;
1280 * Enqueue a vectorized operation descriptor into the device queue but the
1281 * driver may or may not start processing until rte_cryptodev_raw_enqueue_done()
1284 * @param qp Driver specific queue pair data.
1285 * @param drv_ctx Driver specific context data.
1286 * @param vec Vectorized operation descriptor.
1287 * @param ofs Start and stop offsets for auth and cipher
1289 * @param user_data The array of user data for dequeue later.
1290 * @param enqueue_status Driver written value to specify the
1291 * enqueue status. Possible values:
1292 * - 1: The number of operations returned are
1293 * enqueued successfully.
1294 * - 0: The number of operations returned are
1295 * cached into the queue but are not processed
1296 * until rte_cryptodev_raw_enqueue_done() is
1298 * - negative integer: Error occurred.
1300 * - The number of operations in the descriptor successfully enqueued or
1301 * cached into the queue but not enqueued yet, depends on the
1302 * "enqueue_status" value.
1304 typedef uint32_t (*cryptodev_sym_raw_enqueue_burst_t)(
1305 void *qp, uint8_t *drv_ctx, struct rte_crypto_sym_vec *vec,
1306 union rte_crypto_sym_ofs ofs, void *user_data[], int *enqueue_status);
1309 * Enqueue single raw data vector into the device queue but the driver may or
1310 * may not start processing until rte_cryptodev_raw_enqueue_done() is called.
1312 * @param qp Driver specific queue pair data.
1313 * @param drv_ctx Driver specific context data.
1314 * @param data_vec The buffer data vector.
1315 * @param n_data_vecs Number of buffer data vectors.
1316 * @param ofs Start and stop offsets for auth and cipher
1318 * @param iv IV virtual and IOVA addresses
1319 * @param digest digest virtual and IOVA addresses
1320 * @param aad_or_auth_iv AAD or auth IV virtual and IOVA addresses,
1321 * depends on the algorithm used.
1322 * @param user_data The user data.
1324 * - 1: The data vector is enqueued successfully.
1325 * - 0: The data vector is cached into the queue but is not processed
1326 * until rte_cryptodev_raw_enqueue_done() is called.
1327 * - negative integer: failure.
1329 typedef int (*cryptodev_sym_raw_enqueue_t)(
1330 void *qp, uint8_t *drv_ctx, struct rte_crypto_vec *data_vec,
1331 uint16_t n_data_vecs, union rte_crypto_sym_ofs ofs,
1332 struct rte_crypto_va_iova_ptr *iv,
1333 struct rte_crypto_va_iova_ptr *digest,
1334 struct rte_crypto_va_iova_ptr *aad_or_auth_iv,
1338 * Inform the cryptodev queue pair to start processing or finish dequeuing all
1339 * enqueued/dequeued operations.
1341 * @param qp Driver specific queue pair data.
1342 * @param drv_ctx Driver specific context data.
1343 * @param n The total number of processed operations.
1345 * - On success return 0.
1346 * - On failure return negative integer.
1348 typedef int (*cryptodev_sym_raw_operation_done_t)(void *qp, uint8_t *drv_ctx,
1352 * Typedef that the user provided for the driver to get the dequeue count.
1353 * The function may return a fixed number or the number parsed from the user
1354 * data stored in the first processed operation.
1356 * @param user_data Dequeued user data.
1358 * - The number of operations to be dequeued.
1360 typedef uint32_t (*rte_cryptodev_raw_get_dequeue_count_t)(void *user_data);
1363 * Typedef that the user provided to deal with post dequeue operation, such
1364 * as filling status.
1366 * @param user_data Dequeued user data.
1367 * @param index Index number of the processed descriptor.
1368 * @param is_op_success Operation status provided by the driver.
1370 typedef void (*rte_cryptodev_raw_post_dequeue_t)(void *user_data,
1371 uint32_t index, uint8_t is_op_success);
1374 * Dequeue a burst of symmetric crypto processing.
1376 * @param qp Driver specific queue pair data.
1377 * @param drv_ctx Driver specific context data.
1378 * @param get_dequeue_count User provided callback function to
1379 * obtain dequeue operation count.
1380 * @param max_nb_to_dequeue When get_dequeue_count is NULL this
1381 * value is used to pass the maximum
1382 * number of operations to be dequeued.
1383 * @param post_dequeue User provided callback function to
1384 * post-process a dequeued operation.
1385 * @param out_user_data User data pointer array to be retrieve
1386 * from device queue. In case of
1387 * *is_user_data_array* is set there
1388 * should be enough room to store all
1390 * @param is_user_data_array Set 1 if every dequeued user data will
1391 * be written into out_user_data array.
1392 * Set 0 if only the first user data will
1393 * be written into out_user_data array.
1394 * @param n_success Driver written value to specific the
1395 * total successful operations count.
1396 * @param dequeue_status Driver written value to specify the
1397 * dequeue status. Possible values:
1398 * - 1: Successfully dequeued the number
1399 * of operations returned. The user
1400 * data previously set during enqueue
1401 * is stored in the "out_user_data".
1402 * - 0: The number of operations returned
1403 * are completed and the user data is
1404 * stored in the "out_user_data", but
1405 * they are not freed from the queue
1407 * rte_cryptodev_raw_dequeue_done()
1409 * - negative integer: Error occurred.
1411 * - The number of operations dequeued or completed but not freed from the
1412 * queue, depends on "dequeue_status" value.
1414 typedef uint32_t (*cryptodev_sym_raw_dequeue_burst_t)(void *qp,
1416 rte_cryptodev_raw_get_dequeue_count_t get_dequeue_count,
1417 uint32_t max_nb_to_dequeue,
1418 rte_cryptodev_raw_post_dequeue_t post_dequeue,
1419 void **out_user_data, uint8_t is_user_data_array,
1420 uint32_t *n_success, int *dequeue_status);
1423 * Dequeue a symmetric crypto processing.
1425 * @param qp Driver specific queue pair data.
1426 * @param drv_ctx Driver specific context data.
1427 * @param dequeue_status Driver written value to specify the
1428 * dequeue status. Possible values:
1429 * - 1: Successfully dequeued a operation.
1430 * The user data is returned.
1431 * - 0: The first operation in the queue
1432 * is completed and the user data
1433 * previously set during enqueue is
1434 * returned, but it is not freed from
1436 * rte_cryptodev_raw_dequeue_done() is
1438 * - negative integer: Error occurred.
1439 * @param op_status Driver written value to specify
1442 * - The user data pointer retrieved from device queue or NULL if no
1443 * operation is ready for dequeue.
1445 typedef void * (*cryptodev_sym_raw_dequeue_t)(
1446 void *qp, uint8_t *drv_ctx, int *dequeue_status,
1447 enum rte_crypto_op_status *op_status);
1450 * Context data for raw data-path API crypto process. The buffer of this
1451 * structure is to be allocated by the user application with the size equal
1452 * or bigger than rte_cryptodev_get_raw_dp_ctx_size() returned value.
1454 struct rte_crypto_raw_dp_ctx {
1457 cryptodev_sym_raw_enqueue_t enqueue;
1458 cryptodev_sym_raw_enqueue_burst_t enqueue_burst;
1459 cryptodev_sym_raw_operation_done_t enqueue_done;
1460 cryptodev_sym_raw_dequeue_t dequeue;
1461 cryptodev_sym_raw_dequeue_burst_t dequeue_burst;
1462 cryptodev_sym_raw_operation_done_t dequeue_done;
1464 /* Driver specific context data */
1465 __extension__ uint8_t drv_ctx_data[];
1469 * Configure raw data-path context data.
1472 * After the context data is configured, the user should call
1473 * rte_cryptodev_raw_attach_session() before using it in
1474 * rte_cryptodev_raw_enqueue/dequeue function call.
1476 * @param dev_id The device identifier.
1477 * @param qp_id The index of the queue pair from which to
1478 * retrieve processed packets. The value must be
1479 * in the range [0, nb_queue_pair - 1] previously
1480 * supplied to rte_cryptodev_configure().
1481 * @param ctx The raw data-path context data.
1482 * @param sess_type session type.
1483 * @param session_ctx Session context data.
1484 * @param is_update Set 0 if it is to initialize the ctx.
1485 * Set 1 if ctx is initialized and only to update
1486 * session context data.
1488 * - On success return 0.
1489 * - On failure return negative integer.
1493 rte_cryptodev_configure_raw_dp_ctx(uint8_t dev_id, uint16_t qp_id,
1494 struct rte_crypto_raw_dp_ctx *ctx,
1495 enum rte_crypto_op_sess_type sess_type,
1496 union rte_cryptodev_session_ctx session_ctx,
1500 * Enqueue a vectorized operation descriptor into the device queue but the
1501 * driver may or may not start processing until rte_cryptodev_raw_enqueue_done()
1504 * @param ctx The initialized raw data-path context data.
1505 * @param vec Vectorized operation descriptor.
1506 * @param ofs Start and stop offsets for auth and cipher
1508 * @param user_data The array of user data for dequeue later.
1509 * @param enqueue_status Driver written value to specify the
1510 * enqueue status. Possible values:
1511 * - 1: The number of operations returned are
1512 * enqueued successfully.
1513 * - 0: The number of operations returned are
1514 * cached into the queue but are not processed
1515 * until rte_cryptodev_raw_enqueue_done() is
1517 * - negative integer: Error occurred.
1519 * - The number of operations in the descriptor successfully enqueued or
1520 * cached into the queue but not enqueued yet, depends on the
1521 * "enqueue_status" value.
1525 rte_cryptodev_raw_enqueue_burst(struct rte_crypto_raw_dp_ctx *ctx,
1526 struct rte_crypto_sym_vec *vec, union rte_crypto_sym_ofs ofs,
1527 void **user_data, int *enqueue_status);
1530 * Enqueue single raw data vector into the device queue but the driver may or
1531 * may not start processing until rte_cryptodev_raw_enqueue_done() is called.
1533 * @param ctx The initialized raw data-path context data.
1534 * @param data_vec The buffer data vector.
1535 * @param n_data_vecs Number of buffer data vectors.
1536 * @param ofs Start and stop offsets for auth and cipher
1538 * @param iv IV virtual and IOVA addresses
1539 * @param digest digest virtual and IOVA addresses
1540 * @param aad_or_auth_iv AAD or auth IV virtual and IOVA addresses,
1541 * depends on the algorithm used.
1542 * @param user_data The user data.
1544 * - 1: The data vector is enqueued successfully.
1545 * - 0: The data vector is cached into the queue but is not processed
1546 * until rte_cryptodev_raw_enqueue_done() is called.
1547 * - negative integer: failure.
1550 static __rte_always_inline int
1551 rte_cryptodev_raw_enqueue(struct rte_crypto_raw_dp_ctx *ctx,
1552 struct rte_crypto_vec *data_vec, uint16_t n_data_vecs,
1553 union rte_crypto_sym_ofs ofs,
1554 struct rte_crypto_va_iova_ptr *iv,
1555 struct rte_crypto_va_iova_ptr *digest,
1556 struct rte_crypto_va_iova_ptr *aad_or_auth_iv,
1559 return (*ctx->enqueue)(ctx->qp_data, ctx->drv_ctx_data, data_vec,
1560 n_data_vecs, ofs, iv, digest, aad_or_auth_iv, user_data);
1564 * Start processing all enqueued operations from last
1565 * rte_cryptodev_configure_raw_dp_ctx() call.
1567 * @param ctx The initialized raw data-path context data.
1568 * @param n The number of operations cached.
1570 * - On success return 0.
1571 * - On failure return negative integer.
1575 rte_cryptodev_raw_enqueue_done(struct rte_crypto_raw_dp_ctx *ctx,
1579 * Dequeue a burst of symmetric crypto processing.
1581 * @param ctx The initialized raw data-path context
1583 * @param get_dequeue_count User provided callback function to
1584 * obtain dequeue operation count.
1585 * @param max_nb_to_dequeue When get_dequeue_count is NULL this
1586 * value is used to pass the maximum
1587 * number of operations to be dequeued.
1588 * @param post_dequeue User provided callback function to
1589 * post-process a dequeued operation.
1590 * @param out_user_data User data pointer array to be retrieve
1591 * from device queue. In case of
1592 * *is_user_data_array* is set there
1593 * should be enough room to store all
1595 * @param is_user_data_array Set 1 if every dequeued user data will
1596 * be written into out_user_data array.
1597 * Set 0 if only the first user data will
1598 * be written into out_user_data array.
1599 * @param n_success Driver written value to specific the
1600 * total successful operations count.
1601 * @param dequeue_status Driver written value to specify the
1602 * dequeue status. Possible values:
1603 * - 1: Successfully dequeued the number
1604 * of operations returned. The user
1605 * data previously set during enqueue
1606 * is stored in the "out_user_data".
1607 * - 0: The number of operations returned
1608 * are completed and the user data is
1609 * stored in the "out_user_data", but
1610 * they are not freed from the queue
1612 * rte_cryptodev_raw_dequeue_done()
1614 * - negative integer: Error occurred.
1616 * - The number of operations dequeued or completed but not freed from the
1617 * queue, depends on "dequeue_status" value.
1621 rte_cryptodev_raw_dequeue_burst(struct rte_crypto_raw_dp_ctx *ctx,
1622 rte_cryptodev_raw_get_dequeue_count_t get_dequeue_count,
1623 uint32_t max_nb_to_dequeue,
1624 rte_cryptodev_raw_post_dequeue_t post_dequeue,
1625 void **out_user_data, uint8_t is_user_data_array,
1626 uint32_t *n_success, int *dequeue_status);
1629 * Dequeue a symmetric crypto processing.
1631 * @param ctx The initialized raw data-path context
1633 * @param dequeue_status Driver written value to specify the
1634 * dequeue status. Possible values:
1635 * - 1: Successfully dequeued a operation.
1636 * The user data is returned.
1637 * - 0: The first operation in the queue
1638 * is completed and the user data
1639 * previously set during enqueue is
1640 * returned, but it is not freed from
1642 * rte_cryptodev_raw_dequeue_done() is
1644 * - negative integer: Error occurred.
1645 * @param op_status Driver written value to specify
1648 * - The user data pointer retrieved from device queue or NULL if no
1649 * operation is ready for dequeue.
1652 static __rte_always_inline void *
1653 rte_cryptodev_raw_dequeue(struct rte_crypto_raw_dp_ctx *ctx,
1654 int *dequeue_status, enum rte_crypto_op_status *op_status)
1656 return (*ctx->dequeue)(ctx->qp_data, ctx->drv_ctx_data, dequeue_status,
1661 * Inform the queue pair dequeue operations is finished.
1663 * @param ctx The initialized raw data-path context data.
1664 * @param n The number of operations.
1666 * - On success return 0.
1667 * - On failure return negative integer.
1671 rte_cryptodev_raw_dequeue_done(struct rte_crypto_raw_dp_ctx *ctx,
1675 * Add a user callback for a given crypto device and queue pair which will be
1676 * called on crypto ops enqueue.
1678 * This API configures a function to be called for each burst of crypto ops
1679 * received on a given crypto device queue pair. The return value is a pointer
1680 * that can be used later to remove the callback using
1681 * rte_cryptodev_remove_enq_callback().
1683 * Callbacks registered by application would not survive
1684 * rte_cryptodev_configure() as it reinitializes the callback list.
1685 * It is user responsibility to remove all installed callbacks before
1686 * calling rte_cryptodev_configure() to avoid possible memory leakage.
1687 * Application is expected to call add API after rte_cryptodev_configure().
1689 * Multiple functions can be registered per queue pair & they are called
1690 * in the order they were added. The API does not restrict on maximum number
1693 * @param dev_id The identifier of the device.
1694 * @param qp_id The index of the queue pair on which ops are
1695 * to be enqueued for processing. The value
1696 * must be in the range [0, nb_queue_pairs - 1]
1697 * previously supplied to
1698 * *rte_cryptodev_configure*.
1699 * @param cb_fn The callback function
1700 * @param cb_arg A generic pointer parameter which will be passed
1701 * to each invocation of the callback function on
1702 * this crypto device and queue pair.
1705 * - NULL on error & rte_errno will contain the error code.
1706 * - On success, a pointer value which can later be used to remove the
1711 struct rte_cryptodev_cb *
1712 rte_cryptodev_add_enq_callback(uint8_t dev_id,
1714 rte_cryptodev_callback_fn cb_fn,
1718 * Remove a user callback function for given crypto device and queue pair.
1720 * This function is used to remove enqueue callbacks that were added to a
1721 * crypto device queue pair using rte_cryptodev_add_enq_callback().
1725 * @param dev_id The identifier of the device.
1726 * @param qp_id The index of the queue pair on which ops are
1727 * to be enqueued. The value must be in the
1728 * range [0, nb_queue_pairs - 1] previously
1729 * supplied to *rte_cryptodev_configure*.
1730 * @param cb Pointer to user supplied callback created via
1731 * rte_cryptodev_add_enq_callback().
1734 * - 0: Success. Callback was removed.
1735 * - <0: The dev_id or the qp_id is out of range, or the callback
1736 * is NULL or not found for the crypto device queue pair.
1740 int rte_cryptodev_remove_enq_callback(uint8_t dev_id,
1742 struct rte_cryptodev_cb *cb);
1745 * Add a user callback for a given crypto device and queue pair which will be
1746 * called on crypto ops dequeue.
1748 * This API configures a function to be called for each burst of crypto ops
1749 * received on a given crypto device queue pair. The return value is a pointer
1750 * that can be used later to remove the callback using
1751 * rte_cryptodev_remove_deq_callback().
1753 * Callbacks registered by application would not survive
1754 * rte_cryptodev_configure() as it reinitializes the callback list.
1755 * It is user responsibility to remove all installed callbacks before
1756 * calling rte_cryptodev_configure() to avoid possible memory leakage.
1757 * Application is expected to call add API after rte_cryptodev_configure().
1759 * Multiple functions can be registered per queue pair & they are called
1760 * in the order they were added. The API does not restrict on maximum number
1763 * @param dev_id The identifier of the device.
1764 * @param qp_id The index of the queue pair on which ops are
1765 * to be dequeued. The value must be in the
1766 * range [0, nb_queue_pairs - 1] previously
1767 * supplied to *rte_cryptodev_configure*.
1768 * @param cb_fn The callback function
1769 * @param cb_arg A generic pointer parameter which will be passed
1770 * to each invocation of the callback function on
1771 * this crypto device and queue pair.
1774 * - NULL on error & rte_errno will contain the error code.
1775 * - On success, a pointer value which can later be used to remove the
1780 struct rte_cryptodev_cb *
1781 rte_cryptodev_add_deq_callback(uint8_t dev_id,
1783 rte_cryptodev_callback_fn cb_fn,
1787 * Remove a user callback function for given crypto device and queue pair.
1789 * This function is used to remove dequeue callbacks that were added to a
1790 * crypto device queue pair using rte_cryptodev_add_deq_callback().
1794 * @param dev_id The identifier of the device.
1795 * @param qp_id The index of the queue pair on which ops are
1796 * to be dequeued. The value must be in the
1797 * range [0, nb_queue_pairs - 1] previously
1798 * supplied to *rte_cryptodev_configure*.
1799 * @param cb Pointer to user supplied callback created via
1800 * rte_cryptodev_add_deq_callback().
1803 * - 0: Success. Callback was removed.
1804 * - <0: The dev_id or the qp_id is out of range, or the callback
1805 * is NULL or not found for the crypto device queue pair.
1808 int rte_cryptodev_remove_deq_callback(uint8_t dev_id,
1810 struct rte_cryptodev_cb *cb);
1812 #include <rte_cryptodev_core.h>
1815 * Dequeue a burst of processed crypto operations from a queue on the crypto
1816 * device. The dequeued operation are stored in *rte_crypto_op* structures
1817 * whose pointers are supplied in the *ops* array.
1819 * The rte_cryptodev_dequeue_burst() function returns the number of ops
1820 * actually dequeued, which is the number of *rte_crypto_op* data structures
1821 * effectively supplied into the *ops* array.
1823 * A return value equal to *nb_ops* indicates that the queue contained
1824 * at least *nb_ops* operations, and this is likely to signify that other
1825 * processed operations remain in the devices output queue. Applications
1826 * implementing a "retrieve as many processed operations as possible" policy
1827 * can check this specific case and keep invoking the
1828 * rte_cryptodev_dequeue_burst() function until a value less than
1829 * *nb_ops* is returned.
1831 * The rte_cryptodev_dequeue_burst() function does not provide any error
1832 * notification to avoid the corresponding overhead.
1834 * @param dev_id The symmetric crypto device identifier
1835 * @param qp_id The index of the queue pair from which to
1836 * retrieve processed packets. The value must be
1837 * in the range [0, nb_queue_pair - 1] previously
1838 * supplied to rte_cryptodev_configure().
1839 * @param ops The address of an array of pointers to
1840 * *rte_crypto_op* structures that must be
1841 * large enough to store *nb_ops* pointers in it.
1842 * @param nb_ops The maximum number of operations to dequeue.
1845 * - The number of operations actually dequeued, which is the number
1846 * of pointers to *rte_crypto_op* structures effectively supplied to the
1849 static inline uint16_t
1850 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
1851 struct rte_crypto_op **ops, uint16_t nb_ops)
1853 const struct rte_crypto_fp_ops *fp_ops;
1856 rte_cryptodev_trace_dequeue_burst(dev_id, qp_id, (void **)ops, nb_ops);
1858 fp_ops = &rte_crypto_fp_ops[dev_id];
1859 qp = fp_ops->qp.data[qp_id];
1861 nb_ops = fp_ops->dequeue_burst(qp, ops, nb_ops);
1863 #ifdef RTE_CRYPTO_CALLBACKS
1864 if (unlikely(fp_ops->qp.deq_cb != NULL)) {
1865 struct rte_cryptodev_cb_rcu *list;
1866 struct rte_cryptodev_cb *cb;
1868 /* __ATOMIC_RELEASE memory order was used when the
1869 * call back was inserted into the list.
1870 * Since there is a clear dependency between loading
1871 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is
1874 list = &fp_ops->qp.deq_cb[qp_id];
1875 rte_rcu_qsbr_thread_online(list->qsbr, 0);
1876 cb = __atomic_load_n(&list->next, __ATOMIC_RELAXED);
1878 while (cb != NULL) {
1879 nb_ops = cb->fn(dev_id, qp_id, ops, nb_ops,
1884 rte_rcu_qsbr_thread_offline(list->qsbr, 0);
1891 * Enqueue a burst of operations for processing on a crypto device.
1893 * The rte_cryptodev_enqueue_burst() function is invoked to place
1894 * crypto operations on the queue *qp_id* of the device designated by
1897 * The *nb_ops* parameter is the number of operations to process which are
1898 * supplied in the *ops* array of *rte_crypto_op* structures.
1900 * The rte_cryptodev_enqueue_burst() function returns the number of
1901 * operations it actually enqueued for processing. A return value equal to
1902 * *nb_ops* means that all packets have been enqueued.
1904 * @param dev_id The identifier of the device.
1905 * @param qp_id The index of the queue pair which packets are
1906 * to be enqueued for processing. The value
1907 * must be in the range [0, nb_queue_pairs - 1]
1908 * previously supplied to
1909 * *rte_cryptodev_configure*.
1910 * @param ops The address of an array of *nb_ops* pointers
1911 * to *rte_crypto_op* structures which contain
1912 * the crypto operations to be processed.
1913 * @param nb_ops The number of operations to process.
1916 * The number of operations actually enqueued on the crypto device. The return
1917 * value can be less than the value of the *nb_ops* parameter when the
1918 * crypto devices queue is full or if invalid parameters are specified in
1919 * a *rte_crypto_op*.
1921 static inline uint16_t
1922 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
1923 struct rte_crypto_op **ops, uint16_t nb_ops)
1925 const struct rte_crypto_fp_ops *fp_ops;
1928 fp_ops = &rte_crypto_fp_ops[dev_id];
1929 qp = fp_ops->qp.data[qp_id];
1930 #ifdef RTE_CRYPTO_CALLBACKS
1931 if (unlikely(fp_ops->qp.enq_cb != NULL)) {
1932 struct rte_cryptodev_cb_rcu *list;
1933 struct rte_cryptodev_cb *cb;
1935 /* __ATOMIC_RELEASE memory order was used when the
1936 * call back was inserted into the list.
1937 * Since there is a clear dependency between loading
1938 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is
1941 list = &fp_ops->qp.enq_cb[qp_id];
1942 rte_rcu_qsbr_thread_online(list->qsbr, 0);
1943 cb = __atomic_load_n(&list->next, __ATOMIC_RELAXED);
1945 while (cb != NULL) {
1946 nb_ops = cb->fn(dev_id, qp_id, ops, nb_ops,
1951 rte_rcu_qsbr_thread_offline(list->qsbr, 0);
1955 rte_cryptodev_trace_enqueue_burst(dev_id, qp_id, (void **)ops, nb_ops);
1956 return fp_ops->enqueue_burst(qp, ops, nb_ops);
1965 #endif /* _RTE_CRYPTODEV_H_ */