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>
27 extern const char **rte_cyptodev_names;
31 #define CDEV_LOG_ERR(...) \
32 RTE_LOG(ERR, CRYPTODEV, \
33 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
34 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
36 #define CDEV_LOG_INFO(...) \
37 RTE_LOG(INFO, CRYPTODEV, \
38 RTE_FMT(RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
39 RTE_FMT_TAIL(__VA_ARGS__,)))
41 #define CDEV_LOG_DEBUG(...) \
42 RTE_LOG(DEBUG, CRYPTODEV, \
43 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
44 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
46 #define CDEV_PMD_TRACE(...) \
47 RTE_LOG(DEBUG, CRYPTODEV, \
48 RTE_FMT("[%s] %s: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
49 dev, __func__, RTE_FMT_TAIL(__VA_ARGS__,)))
52 * A macro that points to an offset from the start
53 * of the crypto operation structure (rte_crypto_op)
55 * The returned pointer is cast to type t.
58 * The crypto operation.
60 * The offset from the start of the crypto operation.
62 * The type to cast the result into.
64 #define rte_crypto_op_ctod_offset(c, t, o) \
65 ((t)((char *)(c) + (o)))
68 * A macro that returns the physical address that points
69 * to an offset from the start of the crypto operation
73 * The crypto operation.
75 * The offset from the start of the crypto operation
76 * to calculate address from.
78 #define rte_crypto_op_ctophys_offset(c, o) \
79 (rte_iova_t)((c)->phys_addr + (o))
82 * Crypto parameters range description
84 struct rte_crypto_param_range {
85 uint16_t min; /**< minimum size */
86 uint16_t max; /**< maximum size */
88 /**< if a range of sizes are supported,
89 * this parameter is used to indicate
90 * increments in byte size that are supported
91 * between the minimum and maximum
96 * Symmetric Crypto Capability
98 struct rte_cryptodev_symmetric_capability {
99 enum rte_crypto_sym_xform_type xform_type;
100 /**< Transform type : Authentication / Cipher / AEAD */
104 enum rte_crypto_auth_algorithm algo;
105 /**< authentication algorithm */
107 /**< algorithm block size */
108 struct rte_crypto_param_range key_size;
109 /**< auth key size range */
110 struct rte_crypto_param_range digest_size;
111 /**< digest size range */
112 struct rte_crypto_param_range aad_size;
113 /**< Additional authentication data size range */
114 struct rte_crypto_param_range iv_size;
115 /**< Initialisation vector data size range */
117 /**< Symmetric Authentication transform capabilities */
119 enum rte_crypto_cipher_algorithm algo;
120 /**< cipher algorithm */
122 /**< algorithm block size */
123 struct rte_crypto_param_range key_size;
124 /**< cipher key size range */
125 struct rte_crypto_param_range iv_size;
126 /**< Initialisation vector data size range */
128 /**< Symmetric Cipher transform capabilities */
130 enum rte_crypto_aead_algorithm algo;
131 /**< AEAD algorithm */
133 /**< algorithm block size */
134 struct rte_crypto_param_range key_size;
135 /**< AEAD key size range */
136 struct rte_crypto_param_range digest_size;
137 /**< digest size range */
138 struct rte_crypto_param_range aad_size;
139 /**< Additional authentication data size range */
140 struct rte_crypto_param_range iv_size;
141 /**< Initialisation vector data size range */
147 * Asymmetric Xform Crypto Capability
150 struct rte_cryptodev_asymmetric_xform_capability {
151 enum rte_crypto_asym_xform_type xform_type;
152 /**< Transform type: RSA/MODEXP/DH/DSA/MODINV */
155 /**< bitmask for supported rte_crypto_asym_op_type */
159 struct rte_crypto_param_range modlen;
160 /**< Range of modulus length supported by modulus based xform.
161 * Value 0 mean implementation default
167 * Asymmetric Crypto Capability
170 struct rte_cryptodev_asymmetric_capability {
171 struct rte_cryptodev_asymmetric_xform_capability xform_capa;
175 /** Structure used to capture a capability of a crypto device */
176 struct rte_cryptodev_capabilities {
177 enum rte_crypto_op_type op;
178 /**< Operation type */
182 struct rte_cryptodev_symmetric_capability sym;
183 /**< Symmetric operation capability parameters */
184 struct rte_cryptodev_asymmetric_capability asym;
185 /**< Asymmetric operation capability parameters */
189 /** Structure used to describe crypto algorithms */
190 struct rte_cryptodev_sym_capability_idx {
191 enum rte_crypto_sym_xform_type type;
193 enum rte_crypto_cipher_algorithm cipher;
194 enum rte_crypto_auth_algorithm auth;
195 enum rte_crypto_aead_algorithm aead;
200 * Structure used to describe asymmetric crypto xforms
201 * Each xform maps to one asym algorithm.
204 struct rte_cryptodev_asym_capability_idx {
205 enum rte_crypto_asym_xform_type type;
206 /**< Asymmetric xform (algo) type */
210 * Provide capabilities available for defined device and algorithm
212 * @param dev_id The identifier of the device.
213 * @param idx Description of crypto algorithms.
216 * - Return description of the symmetric crypto capability if exist.
217 * - Return NULL if the capability not exist.
219 const struct rte_cryptodev_symmetric_capability *
220 rte_cryptodev_sym_capability_get(uint8_t dev_id,
221 const struct rte_cryptodev_sym_capability_idx *idx);
224 * Provide capabilities available for defined device and xform
226 * @param dev_id The identifier of the device.
227 * @param idx Description of asym crypto xform.
230 * - Return description of the asymmetric crypto capability if exist.
231 * - Return NULL if the capability not exist.
234 const struct rte_cryptodev_asymmetric_xform_capability *
235 rte_cryptodev_asym_capability_get(uint8_t dev_id,
236 const struct rte_cryptodev_asym_capability_idx *idx);
239 * Check if key size and initial vector are supported
240 * in crypto cipher capability
242 * @param capability Description of the symmetric crypto capability.
243 * @param key_size Cipher key size.
244 * @param iv_size Cipher initial vector size.
247 * - Return 0 if the parameters are in range of the capability.
248 * - Return -1 if the parameters are out of range of the capability.
251 rte_cryptodev_sym_capability_check_cipher(
252 const struct rte_cryptodev_symmetric_capability *capability,
253 uint16_t key_size, uint16_t iv_size);
256 * Check if key size and initial vector are supported
257 * in crypto auth capability
259 * @param capability Description of the symmetric crypto capability.
260 * @param key_size Auth key size.
261 * @param digest_size Auth digest size.
262 * @param iv_size Auth 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_auth(
270 const struct rte_cryptodev_symmetric_capability *capability,
271 uint16_t key_size, uint16_t digest_size, uint16_t iv_size);
274 * Check if key, digest, AAD and initial vector sizes are supported
275 * in crypto AEAD capability
277 * @param capability Description of the symmetric crypto capability.
278 * @param key_size AEAD key size.
279 * @param digest_size AEAD digest size.
280 * @param aad_size AEAD AAD size.
281 * @param iv_size AEAD IV size.
284 * - Return 0 if the parameters are in range of the capability.
285 * - Return -1 if the parameters are out of range of the capability.
288 rte_cryptodev_sym_capability_check_aead(
289 const struct rte_cryptodev_symmetric_capability *capability,
290 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
294 * Check if op type is supported
296 * @param capability Description of the asymmetric crypto capability.
297 * @param op_type op type
300 * - Return 1 if the op type is supported
301 * - Return 0 if unsupported
305 rte_cryptodev_asym_xform_capability_check_optype(
306 const struct rte_cryptodev_asymmetric_xform_capability *capability,
307 enum rte_crypto_asym_op_type op_type);
310 * Check if modulus length is in supported range
312 * @param capability Description of the asymmetric crypto capability.
313 * @param modlen modulus length.
316 * - Return 0 if the parameters are in range of the capability.
317 * - Return -1 if the parameters are out of range of the capability.
321 rte_cryptodev_asym_xform_capability_check_modlen(
322 const struct rte_cryptodev_asymmetric_xform_capability *capability,
326 * Provide the cipher algorithm enum, given an algorithm string
328 * @param algo_enum A pointer to the cipher algorithm
330 * @param algo_string Authentication algo string
333 * - Return -1 if string is not valid
334 * - Return 0 is the string is valid
337 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
338 const char *algo_string);
341 * Provide the authentication algorithm enum, given an algorithm string
343 * @param algo_enum A pointer to the authentication algorithm
345 * @param algo_string Authentication algo string
348 * - Return -1 if string is not valid
349 * - Return 0 is the string is valid
352 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
353 const char *algo_string);
356 * Provide the AEAD algorithm enum, given an algorithm string
358 * @param algo_enum A pointer to the AEAD algorithm
360 * @param algo_string AEAD algorithm string
363 * - Return -1 if string is not valid
364 * - Return 0 is the string is valid
367 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
368 const char *algo_string);
371 * Provide the Asymmetric xform enum, given an xform string
373 * @param xform_enum A pointer to the xform type
375 * @param xform_string xform string
378 * - Return -1 if string is not valid
379 * - Return 0 if the string is valid
383 rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
384 const char *xform_string);
387 /** Macro used at end of crypto PMD list */
388 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
389 { RTE_CRYPTO_OP_TYPE_UNDEFINED }
393 * Crypto device supported feature flags
396 * New features flags should be added to the end of the list
398 * Keep these flags synchronised with rte_cryptodev_get_feature_name()
400 #define RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO (1ULL << 0)
401 /**< Symmetric crypto operations are supported */
402 #define RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO (1ULL << 1)
403 /**< Asymmetric crypto operations are supported */
404 #define RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING (1ULL << 2)
405 /**< Chaining symmetric crypto operations are supported */
406 #define RTE_CRYPTODEV_FF_CPU_SSE (1ULL << 3)
407 /**< Utilises CPU SIMD SSE instructions */
408 #define RTE_CRYPTODEV_FF_CPU_AVX (1ULL << 4)
409 /**< Utilises CPU SIMD AVX instructions */
410 #define RTE_CRYPTODEV_FF_CPU_AVX2 (1ULL << 5)
411 /**< Utilises CPU SIMD AVX2 instructions */
412 #define RTE_CRYPTODEV_FF_CPU_AESNI (1ULL << 6)
413 /**< Utilises CPU AES-NI instructions */
414 #define RTE_CRYPTODEV_FF_HW_ACCELERATED (1ULL << 7)
415 /**< Operations are off-loaded to an
416 * external hardware accelerator
418 #define RTE_CRYPTODEV_FF_CPU_AVX512 (1ULL << 8)
419 /**< Utilises CPU SIMD AVX512 instructions */
420 #define RTE_CRYPTODEV_FF_IN_PLACE_SGL (1ULL << 9)
421 /**< In-place Scatter-gather (SGL) buffers, with multiple segments,
424 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT (1ULL << 10)
425 /**< Out-of-place Scatter-gather (SGL) buffers are
426 * supported in input and output
428 #define RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT (1ULL << 11)
429 /**< Out-of-place Scatter-gather (SGL) buffers are supported
430 * in input, combined with linear buffers (LB), with a
431 * single segment in output
433 #define RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT (1ULL << 12)
434 /**< Out-of-place Scatter-gather (SGL) buffers are supported
435 * in output, combined with linear buffers (LB) in input
437 #define RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT (1ULL << 13)
438 /**< Out-of-place linear buffers (LB) are supported in input and output */
439 #define RTE_CRYPTODEV_FF_CPU_NEON (1ULL << 14)
440 /**< Utilises CPU NEON instructions */
441 #define RTE_CRYPTODEV_FF_CPU_ARM_CE (1ULL << 15)
442 /**< Utilises ARM CPU Cryptographic Extensions */
443 #define RTE_CRYPTODEV_FF_SECURITY (1ULL << 16)
444 /**< Support Security Protocol Processing */
445 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP (1ULL << 17)
446 /**< Support RSA Private Key OP with exponent */
447 #define RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT (1ULL << 18)
448 /**< Support RSA Private Key OP with CRT (quintuple) Keys */
449 #define RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED (1ULL << 19)
450 /**< Support encrypted-digest operations where digest is appended to data */
451 #define RTE_CRYPTODEV_FF_ASYM_SESSIONLESS (1ULL << 20)
452 /**< Support asymmetric session-less operations */
453 #define RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO (1ULL << 21)
454 /**< Support symmetric cpu-crypto processing */
458 * Get the name of a crypto device feature flag
460 * @param flag The mask describing the flag.
463 * The name of this flag, or NULL if it's not a valid feature flag.
467 rte_cryptodev_get_feature_name(uint64_t flag);
469 /** Crypto device information */
470 struct rte_cryptodev_info {
471 const char *driver_name; /**< Driver name. */
472 uint8_t driver_id; /**< Driver identifier */
473 struct rte_device *device; /**< Generic device information. */
475 uint64_t feature_flags;
476 /**< Feature flags exposes HW/SW features for the given device */
478 const struct rte_cryptodev_capabilities *capabilities;
479 /**< Array of devices supported capabilities */
481 unsigned max_nb_queue_pairs;
482 /**< Maximum number of queues pairs supported by device. */
484 uint16_t min_mbuf_headroom_req;
485 /**< Minimum mbuf headroom required by device */
487 uint16_t min_mbuf_tailroom_req;
488 /**< Minimum mbuf tailroom required by device */
491 unsigned max_nb_sessions;
492 /**< Maximum number of sessions supported by device.
493 * If 0, the device does not have any limitation in
494 * number of sessions that can be used.
499 #define RTE_CRYPTODEV_DETACHED (0)
500 #define RTE_CRYPTODEV_ATTACHED (1)
502 /** Definitions of Crypto device event types */
503 enum rte_cryptodev_event_type {
504 RTE_CRYPTODEV_EVENT_UNKNOWN, /**< unknown event type */
505 RTE_CRYPTODEV_EVENT_ERROR, /**< error interrupt event */
506 RTE_CRYPTODEV_EVENT_MAX /**< max value of this enum */
509 /** Crypto device queue pair configuration structure. */
510 struct rte_cryptodev_qp_conf {
511 uint32_t nb_descriptors; /**< Number of descriptors per queue pair */
512 struct rte_mempool *mp_session;
513 /**< The mempool for creating session in sessionless mode */
514 struct rte_mempool *mp_session_private;
515 /**< The mempool for creating sess private data in sessionless mode */
519 * Typedef for application callback function to be registered by application
520 * software for notification of device events
522 * @param dev_id Crypto device identifier
523 * @param event Crypto device event to register for notification of.
524 * @param cb_arg User specified parameter to be passed as to passed to
525 * users callback function.
527 typedef void (*rte_cryptodev_cb_fn)(uint8_t dev_id,
528 enum rte_cryptodev_event_type event, void *cb_arg);
531 /** Crypto Device statistics */
532 struct rte_cryptodev_stats {
533 uint64_t enqueued_count;
534 /**< Count of all operations enqueued */
535 uint64_t dequeued_count;
536 /**< Count of all operations dequeued */
538 uint64_t enqueue_err_count;
539 /**< Total error count on operations enqueued */
540 uint64_t dequeue_err_count;
541 /**< Total error count on operations dequeued */
544 #define RTE_CRYPTODEV_NAME_MAX_LEN (64)
545 /**< Max length of name of crypto PMD */
548 * Get the device identifier for the named crypto device.
550 * @param name device name to select the device structure.
553 * - Returns crypto device identifier on success.
554 * - Return -1 on failure to find named crypto device.
557 rte_cryptodev_get_dev_id(const char *name);
560 * Get the crypto device name given a device identifier.
563 * The identifier of the device
566 * - Returns crypto device name.
567 * - Returns NULL if crypto device is not present.
570 rte_cryptodev_name_get(uint8_t dev_id);
573 * Get the total number of crypto devices that have been successfully
577 * - The total number of usable crypto devices.
580 rte_cryptodev_count(void);
583 * Get number of crypto device defined type.
585 * @param driver_id driver identifier.
588 * Returns number of crypto device.
591 rte_cryptodev_device_count_by_driver(uint8_t driver_id);
594 * Get number and identifiers of attached crypto devices that
595 * use the same crypto driver.
597 * @param driver_name driver name.
598 * @param devices output devices identifiers.
599 * @param nb_devices maximal number of devices.
602 * Returns number of attached crypto device.
605 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
608 * Return the NUMA socket to which a device is connected
611 * The identifier of the device
613 * The NUMA socket id to which the device is connected or
614 * a default of zero if the socket could not be determined.
615 * -1 if returned is the dev_id value is out of range.
618 rte_cryptodev_socket_id(uint8_t dev_id);
620 /** Crypto device configuration structure */
621 struct rte_cryptodev_config {
622 int socket_id; /**< Socket to allocate resources on */
623 uint16_t nb_queue_pairs;
624 /**< Number of queue pairs to configure on device */
626 /**< Feature flags to be disabled. Only the following features are
627 * allowed to be disabled,
628 * - RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO
629 * - RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO
630 * - RTE_CRYTPODEV_FF_SECURITY
635 * Configure a device.
637 * This function must be invoked first before any other function in the
638 * API. This function can also be re-invoked when a device is in the
641 * @param dev_id The identifier of the device to configure.
642 * @param config The crypto device configuration structure.
645 * - 0: Success, device configured.
646 * - <0: Error code returned by the driver configuration function.
649 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
654 * The device start step is the last one and consists of setting the configured
655 * offload features and in starting the transmit and the receive units of the
657 * On success, all basic functions exported by the API (link status,
658 * receive/transmit, and so on) can be invoked.
661 * The identifier of the device.
663 * - 0: Success, device started.
664 * - <0: Error code of the driver device start function.
667 rte_cryptodev_start(uint8_t dev_id);
670 * Stop an device. The device can be restarted with a call to
671 * rte_cryptodev_start()
673 * @param dev_id The identifier of the device.
676 rte_cryptodev_stop(uint8_t dev_id);
679 * Close an device. The device cannot be restarted!
681 * @param dev_id The identifier of the device.
684 * - 0 on successfully closing device
685 * - <0 on failure to close device
688 rte_cryptodev_close(uint8_t dev_id);
691 * Allocate and set up a receive queue pair for a device.
694 * @param dev_id The identifier of the device.
695 * @param queue_pair_id The index of the queue pairs to set up. The
696 * value must be in the range [0, nb_queue_pair
697 * - 1] previously supplied to
698 * rte_cryptodev_configure().
699 * @param qp_conf The pointer to the configuration data to be
700 * used for the queue pair.
701 * @param socket_id The *socket_id* argument is the socket
702 * identifier in case of NUMA. The value can be
703 * *SOCKET_ID_ANY* if there is no NUMA constraint
704 * for the DMA memory allocated for the receive
708 * - 0: Success, queue pair correctly set up.
709 * - <0: Queue pair configuration failed
712 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
713 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
716 * Get the number of queue pairs on a specific crypto device
718 * @param dev_id Crypto device identifier.
720 * - The number of configured queue pairs.
723 rte_cryptodev_queue_pair_count(uint8_t dev_id);
727 * Retrieve the general I/O statistics of a device.
729 * @param dev_id The identifier of the device.
730 * @param stats A pointer to a structure of type
731 * *rte_cryptodev_stats* to be filled with the
732 * values of device counters.
734 * - Zero if successful.
735 * - Non-zero otherwise.
738 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats);
741 * Reset the general I/O statistics of a device.
743 * @param dev_id The identifier of the device.
746 rte_cryptodev_stats_reset(uint8_t dev_id);
749 * Retrieve the contextual information of a device.
751 * @param dev_id The identifier of the device.
752 * @param dev_info A pointer to a structure of type
753 * *rte_cryptodev_info* to be filled with the
754 * contextual information of the device.
756 * @note The capabilities field of dev_info is set to point to the first
757 * element of an array of struct rte_cryptodev_capabilities. The element after
758 * the last valid element has it's op field set to
759 * RTE_CRYPTO_OP_TYPE_UNDEFINED.
762 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info);
766 * Register a callback function for specific device id.
768 * @param dev_id Device id.
769 * @param event Event interested.
770 * @param cb_fn User supplied callback function to be called.
771 * @param cb_arg Pointer to the parameters for the registered
775 * - On success, zero.
776 * - On failure, a negative value.
779 rte_cryptodev_callback_register(uint8_t dev_id,
780 enum rte_cryptodev_event_type event,
781 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
784 * Unregister a callback function for specific device id.
786 * @param dev_id The device identifier.
787 * @param event Event interested.
788 * @param cb_fn User supplied callback function to be called.
789 * @param cb_arg Pointer to the parameters for the registered
793 * - On success, zero.
794 * - On failure, a negative value.
797 rte_cryptodev_callback_unregister(uint8_t dev_id,
798 enum rte_cryptodev_event_type event,
799 rte_cryptodev_cb_fn cb_fn, void *cb_arg);
802 typedef uint16_t (*dequeue_pkt_burst_t)(void *qp,
803 struct rte_crypto_op **ops, uint16_t nb_ops);
804 /**< Dequeue processed packets from queue pair of a device. */
806 typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
807 struct rte_crypto_op **ops, uint16_t nb_ops);
808 /**< Enqueue packets for processing on queue pair of a device. */
813 struct rte_cryptodev_callback;
815 /** Structure to keep track of registered callbacks */
816 TAILQ_HEAD(rte_cryptodev_cb_list, rte_cryptodev_callback);
818 /** The data structure associated with each crypto device. */
819 struct rte_cryptodev {
820 dequeue_pkt_burst_t dequeue_burst;
821 /**< Pointer to PMD receive function. */
822 enqueue_pkt_burst_t enqueue_burst;
823 /**< Pointer to PMD transmit function. */
825 struct rte_cryptodev_data *data;
826 /**< Pointer to device data */
827 struct rte_cryptodev_ops *dev_ops;
828 /**< Functions exported by PMD */
829 uint64_t feature_flags;
830 /**< Feature flags exposes HW/SW features for the given device */
831 struct rte_device *device;
832 /**< Backing device */
835 /**< Crypto driver identifier*/
837 struct rte_cryptodev_cb_list link_intr_cbs;
838 /**< User application callback for interrupts if present */
841 /**< Context for security ops */
844 uint8_t attached : 1;
845 /**< Flag indicating the device is attached */
846 } __rte_cache_aligned;
849 rte_cryptodev_get_sec_ctx(uint8_t dev_id);
853 * The data part, with no function pointers, associated with each device.
855 * This structure is safe to place in shared memory to be common among
856 * different processes in a multi-process configuration.
858 struct rte_cryptodev_data {
860 /**< Device ID for this instance */
862 /**< Socket ID where memory is allocated */
863 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
864 /**< Unique identifier name */
867 uint8_t dev_started : 1;
868 /**< Device state: STARTED(1)/STOPPED(0) */
870 struct rte_mempool *session_pool;
871 /**< Session memory pool */
873 /**< Array of pointers to queue pairs. */
874 uint16_t nb_queue_pairs;
875 /**< Number of device queue pairs. */
878 /**< PMD-specific private data */
879 } __rte_cache_aligned;
881 extern struct rte_cryptodev *rte_cryptodevs;
884 * Dequeue a burst of processed crypto operations from a queue on the crypto
885 * device. The dequeued operation are stored in *rte_crypto_op* structures
886 * whose pointers are supplied in the *ops* array.
888 * The rte_cryptodev_dequeue_burst() function returns the number of ops
889 * actually dequeued, which is the number of *rte_crypto_op* data structures
890 * effectively supplied into the *ops* array.
892 * A return value equal to *nb_ops* indicates that the queue contained
893 * at least *nb_ops* operations, and this is likely to signify that other
894 * processed operations remain in the devices output queue. Applications
895 * implementing a "retrieve as many processed operations as possible" policy
896 * can check this specific case and keep invoking the
897 * rte_cryptodev_dequeue_burst() function until a value less than
898 * *nb_ops* is returned.
900 * The rte_cryptodev_dequeue_burst() function does not provide any error
901 * notification to avoid the corresponding overhead.
903 * @param dev_id The symmetric crypto device identifier
904 * @param qp_id The index of the queue pair from which to
905 * retrieve processed packets. The value must be
906 * in the range [0, nb_queue_pair - 1] previously
907 * supplied to rte_cryptodev_configure().
908 * @param ops The address of an array of pointers to
909 * *rte_crypto_op* structures that must be
910 * large enough to store *nb_ops* pointers in it.
911 * @param nb_ops The maximum number of operations to dequeue.
914 * - The number of operations actually dequeued, which is the number
915 * of pointers to *rte_crypto_op* structures effectively supplied to the
918 static inline uint16_t
919 rte_cryptodev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
920 struct rte_crypto_op **ops, uint16_t nb_ops)
922 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
924 nb_ops = (*dev->dequeue_burst)
925 (dev->data->queue_pairs[qp_id], ops, nb_ops);
931 * Enqueue a burst of operations for processing on a crypto device.
933 * The rte_cryptodev_enqueue_burst() function is invoked to place
934 * crypto operations on the queue *qp_id* of the device designated by
937 * The *nb_ops* parameter is the number of operations to process which are
938 * supplied in the *ops* array of *rte_crypto_op* structures.
940 * The rte_cryptodev_enqueue_burst() function returns the number of
941 * operations it actually enqueued for processing. A return value equal to
942 * *nb_ops* means that all packets have been enqueued.
944 * @param dev_id The identifier of the device.
945 * @param qp_id The index of the queue pair which packets are
946 * to be enqueued for processing. The value
947 * must be in the range [0, nb_queue_pairs - 1]
948 * previously supplied to
949 * *rte_cryptodev_configure*.
950 * @param ops The address of an array of *nb_ops* pointers
951 * to *rte_crypto_op* structures which contain
952 * the crypto operations to be processed.
953 * @param nb_ops The number of operations to process.
956 * The number of operations actually enqueued on the crypto device. The return
957 * value can be less than the value of the *nb_ops* parameter when the
958 * crypto devices queue is full or if invalid parameters are specified in
961 static inline uint16_t
962 rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
963 struct rte_crypto_op **ops, uint16_t nb_ops)
965 struct rte_cryptodev *dev = &rte_cryptodevs[dev_id];
967 return (*dev->enqueue_burst)(
968 dev->data->queue_pairs[qp_id], ops, nb_ops);
972 /** Cryptodev symmetric crypto session
973 * Each session is derived from a fixed xform chain. Therefore each session
974 * has a fixed algo, key, op-type, digest_len etc.
976 struct rte_cryptodev_sym_session {
977 uint64_t opaque_data;
978 /**< Can be used for external metadata */
980 /**< number of elements in sess_data array */
981 uint16_t user_data_sz;
982 /**< session user data will be placed after sess_data */
983 __extension__ struct {
987 /**< Driver specific session material, variable size */
990 /** Cryptodev asymmetric crypto session */
991 struct rte_cryptodev_asym_session {
992 __extension__ void *sess_private_data[0];
993 /**< Private asymmetric session material */
997 * Create a symmetric session mempool.
1000 * The unique mempool name.
1002 * The number of elements in the mempool.
1004 * The size of the element. This value will be ignored if it is smaller than
1005 * the minimum session header size required for the system. For the user who
1006 * want to use the same mempool for sym session and session private data it
1007 * can be the maximum value of all existing devices' private data and session
1010 * The number of per-lcore cache elements
1012 * The private data size of each session.
1014 * The *socket_id* argument is the socket identifier in the case of
1015 * NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
1016 * constraint for the reserved zone.
1019 * - On success return size of the session
1020 * - On failure returns 0
1023 struct rte_mempool *
1024 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
1025 uint32_t elt_size, uint32_t cache_size, uint16_t priv_size,
1029 * Create symmetric crypto session header (generic with no private data)
1031 * @param mempool Symmetric session mempool to allocate session
1034 * - On success return pointer to sym-session
1035 * - On failure returns NULL
1037 struct rte_cryptodev_sym_session *
1038 rte_cryptodev_sym_session_create(struct rte_mempool *mempool);
1041 * Create asymmetric crypto session header (generic with no private data)
1043 * @param mempool mempool to allocate asymmetric session
1046 * - On success return pointer to asym-session
1047 * - On failure returns NULL
1050 struct rte_cryptodev_asym_session *
1051 rte_cryptodev_asym_session_create(struct rte_mempool *mempool);
1054 * Frees symmetric crypto session header, after checking that all
1055 * the device private data has been freed, returning it
1056 * to its original mempool.
1058 * @param sess Session header to be freed.
1061 * - 0 if successful.
1062 * - -EINVAL if session is NULL.
1063 * - -EBUSY if not all device private data has been freed.
1066 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);
1069 * Frees asymmetric crypto session header, after checking that all
1070 * the device private data has been freed, returning it
1071 * to its original mempool.
1073 * @param sess Session header to be freed.
1076 * - 0 if successful.
1077 * - -EINVAL if session is NULL.
1078 * - -EBUSY if not all device private data has been freed.
1082 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess);
1085 * Fill out private data for the device id, based on its device type.
1087 * @param dev_id ID of device that we want the session to be used on
1088 * @param sess Session where the private data will be attached to
1089 * @param xforms Symmetric crypto transform operations to apply on flow
1090 * processed with this session
1091 * @param mempool Mempool where the private data is allocated.
1094 * - On success, zero.
1095 * - -EINVAL if input parameters are invalid.
1096 * - -ENOTSUP if crypto device does not support the crypto transform or
1097 * does not support symmetric operations.
1098 * - -ENOMEM if the private session could not be allocated.
1101 rte_cryptodev_sym_session_init(uint8_t dev_id,
1102 struct rte_cryptodev_sym_session *sess,
1103 struct rte_crypto_sym_xform *xforms,
1104 struct rte_mempool *mempool);
1107 * Initialize asymmetric session on a device with specific asymmetric xform
1109 * @param dev_id ID of device that we want the session to be used on
1110 * @param sess Session to be set up on a device
1111 * @param xforms Asymmetric crypto transform operations to apply on flow
1112 * processed with this session
1113 * @param mempool Mempool to be used for internal allocation.
1116 * - On success, zero.
1117 * - -EINVAL if input parameters are invalid.
1118 * - -ENOTSUP if crypto device does not support the crypto transform.
1119 * - -ENOMEM if the private session could not be allocated.
1123 rte_cryptodev_asym_session_init(uint8_t dev_id,
1124 struct rte_cryptodev_asym_session *sess,
1125 struct rte_crypto_asym_xform *xforms,
1126 struct rte_mempool *mempool);
1129 * Frees private data for the device id, based on its device type,
1130 * returning it to its mempool. It is the application's responsibility
1131 * to ensure that private session data is not cleared while there are
1132 * still in-flight operations using it.
1134 * @param dev_id ID of device that uses the session.
1135 * @param sess Session containing the reference to the private data
1138 * - 0 if successful.
1139 * - -EINVAL if device is invalid or session is NULL.
1140 * - -ENOTSUP if crypto device does not support symmetric operations.
1143 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1144 struct rte_cryptodev_sym_session *sess);
1147 * Frees resources held by asymmetric session during rte_cryptodev_session_init
1149 * @param dev_id ID of device that uses the asymmetric session.
1150 * @param sess Asymmetric session setup on device using
1151 * rte_cryptodev_session_init
1153 * - 0 if successful.
1154 * - -EINVAL if device is invalid or session is NULL.
1158 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1159 struct rte_cryptodev_asym_session *sess);
1162 * Get the size of the header session, for all registered drivers excluding
1163 * the user data size.
1166 * Size of the symmetric header session.
1169 rte_cryptodev_sym_get_header_session_size(void);
1172 * Get the size of the header session from created session.
1175 * The sym cryptodev session pointer
1178 * - If sess is not NULL, return the size of the header session including
1179 * the private data size defined within sess.
1180 * - If sess is NULL, return 0.
1184 rte_cryptodev_sym_get_existing_header_session_size(
1185 struct rte_cryptodev_sym_session *sess);
1188 * Get the size of the asymmetric session header, for all registered drivers.
1191 * Size of the asymmetric header session.
1195 rte_cryptodev_asym_get_header_session_size(void);
1198 * Get the size of the private symmetric session data
1201 * @param dev_id The device identifier.
1204 * - Size of the private data, if successful
1205 * - 0 if device is invalid or does not have private
1209 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id);
1212 * Get the size of the private data for asymmetric session
1215 * @param dev_id The device identifier.
1218 * - Size of the asymmetric private data, if successful
1219 * - 0 if device is invalid or does not have private session
1223 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id);
1226 * Provide driver identifier.
1229 * The pointer to a driver name.
1231 * The driver type identifier or -1 if no driver found
1233 int rte_cryptodev_driver_id_get(const char *name);
1236 * Provide driver name.
1239 * The driver identifier.
1241 * The driver name or null if no driver found
1243 const char *rte_cryptodev_driver_name_get(uint8_t driver_id);
1246 * Store user data in a session.
1248 * @param sess Session pointer allocated by
1249 * *rte_cryptodev_sym_session_create*.
1250 * @param data Pointer to the user data.
1251 * @param size Size of the user data.
1254 * - On success, zero.
1255 * - On failure, a negative value.
1259 rte_cryptodev_sym_session_set_user_data(
1260 struct rte_cryptodev_sym_session *sess,
1265 * Get user data stored in a session.
1267 * @param sess Session pointer allocated by
1268 * *rte_cryptodev_sym_session_create*.
1271 * - On success return pointer to user data.
1272 * - On failure returns NULL.
1276 rte_cryptodev_sym_session_get_user_data(
1277 struct rte_cryptodev_sym_session *sess);
1280 * Perform actual crypto processing (encrypt/digest or auth/decrypt)
1281 * on user provided data.
1283 * @param dev_id The device identifier.
1284 * @param sess Cryptodev session structure
1285 * @param ofs Start and stop offsets for auth and cipher operations
1286 * @param vec Vectorized operation descriptor
1289 * - Returns number of successfully processed packets.
1293 rte_cryptodev_sym_cpu_crypto_process(uint8_t dev_id,
1294 struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs ofs,
1295 struct rte_crypto_sym_vec *vec);
1301 #endif /* _RTE_CRYPTODEV_H_ */