1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2016 Intel Corporation.
5 #ifndef _RTE_CRYPTODEV_PMD_H_
6 #define _RTE_CRYPTODEV_PMD_H_
12 * These API are from crypto PMD only and user applications should not call
22 #include <rte_config.h>
24 #include <rte_malloc.h>
26 #include <rte_mempool.h>
28 #include <rte_common.h>
30 #include "rte_crypto.h"
31 #include "rte_cryptodev.h"
34 #define RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS 8
36 #define RTE_CRYPTODEV_PMD_NAME_ARG ("name")
37 #define RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG ("max_nb_queue_pairs")
38 #define RTE_CRYPTODEV_PMD_SOCKET_ID_ARG ("socket_id")
41 static const char * const cryptodev_pmd_valid_params[] = {
42 RTE_CRYPTODEV_PMD_NAME_ARG,
43 RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG,
44 RTE_CRYPTODEV_PMD_SOCKET_ID_ARG
49 * Initialisation parameters for crypto devices
51 struct rte_cryptodev_pmd_init_params {
52 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
53 size_t private_data_size;
55 unsigned int max_nb_queue_pairs;
58 /** Global structure used for maintaining state of allocated crypto devices */
59 struct rte_cryptodev_global {
60 struct rte_cryptodev *devs; /**< Device information array */
61 struct rte_cryptodev_data *data[RTE_CRYPTO_MAX_DEVS];
62 /**< Device private data */
63 uint8_t nb_devs; /**< Number of devices found */
64 uint8_t max_devs; /**< Max number of devices */
67 /* Cryptodev driver, containing the driver ID */
68 struct cryptodev_driver {
69 TAILQ_ENTRY(cryptodev_driver) next; /**< Next in list. */
70 const struct rte_driver *driver;
75 * Get the rte_cryptodev structure device pointer for the device. Assumes a
78 * @param dev_id Device ID value to select the device structure.
81 * - The rte_cryptodev structure pointer for the given device ID.
83 struct rte_cryptodev *
84 rte_cryptodev_pmd_get_dev(uint8_t dev_id);
87 * Get the rte_cryptodev structure device pointer for the named device.
89 * @param name device name to select the device structure.
92 * - The rte_cryptodev structure pointer for the given device ID.
94 struct rte_cryptodev *
95 rte_cryptodev_pmd_get_named_dev(const char *name);
98 * Validate if the crypto device index is valid attached crypto device.
100 * @param dev_id Crypto device index.
103 * - If the device index is valid (1) or not (0).
106 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id);
109 * The pool of rte_cryptodev structures.
111 extern struct rte_cryptodev *rte_cryptodevs;
115 * Definitions of all functions exported by a driver through the
116 * the generic structure of type *crypto_dev_ops* supplied in the
117 * *rte_cryptodev* structure associated with a device.
121 * Function used to configure device.
123 * @param dev Crypto device pointer
124 * config Crypto device configurations
126 * @return Returns 0 on success
128 typedef int (*cryptodev_configure_t)(struct rte_cryptodev *dev,
129 struct rte_cryptodev_config *config);
132 * Function used to start a configured device.
134 * @param dev Crypto device pointer
136 * @return Returns 0 on success
138 typedef int (*cryptodev_start_t)(struct rte_cryptodev *dev);
141 * Function used to stop a configured device.
143 * @param dev Crypto device pointer
145 typedef void (*cryptodev_stop_t)(struct rte_cryptodev *dev);
148 * Function used to close a configured device.
150 * @param dev Crypto device pointer
153 * - EAGAIN if can't close as device is busy
155 typedef int (*cryptodev_close_t)(struct rte_cryptodev *dev);
159 * Function used to get statistics of a device.
161 * @param dev Crypto device pointer
162 * @param stats Pointer to crypto device stats structure to populate
164 typedef void (*cryptodev_stats_get_t)(struct rte_cryptodev *dev,
165 struct rte_cryptodev_stats *stats);
169 * Function used to reset statistics of a device.
171 * @param dev Crypto device pointer
173 typedef void (*cryptodev_stats_reset_t)(struct rte_cryptodev *dev);
177 * Function used to get specific information of a device.
179 * @param dev Crypto device pointer
181 typedef void (*cryptodev_info_get_t)(struct rte_cryptodev *dev,
182 struct rte_cryptodev_info *dev_info);
185 * Setup a queue pair for a device.
187 * @param dev Crypto device pointer
188 * @param qp_id Queue Pair Index
189 * @param qp_conf Queue configuration structure
190 * @param socket_id Socket Index
192 * @return Returns 0 on success.
194 typedef int (*cryptodev_queue_pair_setup_t)(struct rte_cryptodev *dev,
195 uint16_t qp_id, const struct rte_cryptodev_qp_conf *qp_conf,
199 * Release memory resources allocated by given queue pair.
201 * @param dev Crypto device pointer
202 * @param qp_id Queue Pair Index
206 * - EAGAIN if can't close as device is busy
208 typedef int (*cryptodev_queue_pair_release_t)(struct rte_cryptodev *dev,
212 * Get number of available queue pairs of a device.
214 * @param dev Crypto device pointer
216 * @return Returns number of queue pairs on success.
218 typedef uint32_t (*cryptodev_queue_pair_count_t)(struct rte_cryptodev *dev);
221 * Create a session mempool to allocate sessions from
223 * @param dev Crypto device pointer
224 * @param nb_objs number of sessions objects in mempool
225 * @param obj_cache l-core object cache size, see *rte_ring_create*
226 * @param socket_id Socket Id to allocate mempool on.
229 * - On success returns a pointer to a rte_mempool
230 * - On failure returns a NULL pointer
232 typedef int (*cryptodev_sym_create_session_pool_t)(
233 struct rte_cryptodev *dev, unsigned nb_objs,
234 unsigned obj_cache_size, int socket_id);
238 * Get the size of a cryptodev session
240 * @param dev Crypto device pointer
243 * - On success returns the size of the session structure for device
244 * - On failure returns 0
246 typedef unsigned (*cryptodev_sym_get_session_private_size_t)(
247 struct rte_cryptodev *dev);
249 * Get the size of a asymmetric cryptodev session
251 * @param dev Crypto device pointer
254 * - On success returns the size of the session structure for device
255 * - On failure returns 0
257 typedef unsigned int (*cryptodev_asym_get_session_private_size_t)(
258 struct rte_cryptodev *dev);
261 * Configure a Crypto session on a device.
263 * @param dev Crypto device pointer
264 * @param xform Single or chain of crypto xforms
265 * @param priv_sess Pointer to cryptodev's private session structure
266 * @param mp Mempool where the private session is allocated
269 * - Returns 0 if private session structure have been created successfully.
270 * - Returns -EINVAL if input parameters are invalid.
271 * - Returns -ENOTSUP if crypto device does not support the crypto transform.
272 * - Returns -ENOMEM if the private session could not be allocated.
274 typedef int (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev,
275 struct rte_crypto_sym_xform *xform,
276 struct rte_cryptodev_sym_session *session,
277 struct rte_mempool *mp);
279 * Configure a Crypto asymmetric session on a device.
281 * @param dev Crypto device pointer
282 * @param xform Single or chain of crypto xforms
283 * @param priv_sess Pointer to cryptodev's private session structure
284 * @param mp Mempool where the private session is allocated
287 * - Returns 0 if private session structure have been created successfully.
288 * - Returns -EINVAL if input parameters are invalid.
289 * - Returns -ENOTSUP if crypto device does not support the crypto transform.
290 * - Returns -ENOMEM if the private session could not be allocated.
292 typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev *dev,
293 struct rte_crypto_asym_xform *xform,
294 struct rte_cryptodev_asym_session *session,
295 struct rte_mempool *mp);
297 * Free driver private session data.
299 * @param dev Crypto device pointer
300 * @param sess Cryptodev session structure
302 typedef void (*cryptodev_sym_free_session_t)(struct rte_cryptodev *dev,
303 struct rte_cryptodev_sym_session *sess);
305 * Free asymmetric session private data.
307 * @param dev Crypto device pointer
308 * @param sess Cryptodev session structure
310 typedef void (*cryptodev_asym_free_session_t)(struct rte_cryptodev *dev,
311 struct rte_cryptodev_asym_session *sess);
313 /** Crypto device operations function pointer table */
314 struct rte_cryptodev_ops {
315 cryptodev_configure_t dev_configure; /**< Configure device. */
316 cryptodev_start_t dev_start; /**< Start device. */
317 cryptodev_stop_t dev_stop; /**< Stop device. */
318 cryptodev_close_t dev_close; /**< Close device. */
320 cryptodev_info_get_t dev_infos_get; /**< Get device info. */
322 cryptodev_stats_get_t stats_get;
323 /**< Get device statistics. */
324 cryptodev_stats_reset_t stats_reset;
325 /**< Reset device statistics. */
327 cryptodev_queue_pair_setup_t queue_pair_setup;
328 /**< Set up a device queue pair. */
329 cryptodev_queue_pair_release_t queue_pair_release;
330 /**< Release a queue pair. */
331 cryptodev_queue_pair_count_t queue_pair_count;
332 /**< Get count of the queue pairs. */
334 cryptodev_sym_get_session_private_size_t sym_session_get_size;
335 /**< Return private session. */
336 cryptodev_asym_get_session_private_size_t asym_session_get_size;
337 /**< Return asym session private size. */
338 cryptodev_sym_configure_session_t sym_session_configure;
339 /**< Configure a Crypto session. */
340 cryptodev_asym_configure_session_t asym_session_configure;
341 /**< Configure asymmetric Crypto session. */
342 cryptodev_sym_free_session_t sym_session_clear;
343 /**< Clear a Crypto sessions private data. */
344 cryptodev_asym_free_session_t asym_session_clear;
345 /**< Clear a Crypto sessions private data. */
350 * Function for internal use by dummy drivers primarily, e.g. ring-based
352 * Allocates a new cryptodev slot for an crypto device and returns the pointer
353 * to that slot for the driver to use.
355 * @param name Unique identifier name for each device
356 * @param socket_id Socket to allocate resources on.
358 * - Slot in the rte_dev_devices array for a new device;
360 struct rte_cryptodev *
361 rte_cryptodev_pmd_allocate(const char *name, int socket_id);
364 * Function for internal use by dummy drivers primarily, e.g. ring-based
366 * Release the specified cryptodev device.
369 * The *cryptodev* pointer is the address of the *rte_cryptodev* structure.
371 * - 0 on success, negative on error
374 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev);
380 * PMD assist function to parse initialisation arguments for crypto driver
381 * when creating a new crypto PMD device instance.
383 * PMD driver should set default values for that PMD before calling function,
384 * these default values will be over-written with successfully parsed values
387 * @param params parsed PMD initialisation parameters
388 * @param args input argument string to parse
395 rte_cryptodev_pmd_parse_input_args(
396 struct rte_cryptodev_pmd_init_params *params,
402 * PMD assist function to provide boiler plate code for crypto driver to create
403 * and allocate resources for a new crypto PMD device instance.
405 * @param name crypto device name.
406 * @param device base device instance
407 * @param params PMD initialisation parameters
410 * - crypto device instance on success
411 * - NULL on creation failure
413 struct rte_cryptodev *
414 rte_cryptodev_pmd_create(const char *name,
415 struct rte_device *device,
416 struct rte_cryptodev_pmd_init_params *params);
421 * PMD assist function to provide boiler plate code for crypto driver to
422 * destroy and free resources associated with a crypto PMD device instance.
424 * @param cryptodev crypto device handle.
431 rte_cryptodev_pmd_destroy(struct rte_cryptodev *cryptodev);
434 * Executes all the user application registered callbacks for the specific
437 * @param dev Pointer to cryptodev struct
438 * @param event Crypto device interrupt event type.
443 void rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
444 enum rte_cryptodev_event_type event);
448 * Create unique device name
451 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix);
455 * Allocate Cryptodev driver.
458 * Pointer to cryptodev_driver.
460 * Pointer to rte_driver.
463 * The driver type identifier
465 uint8_t rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
466 const struct rte_driver *drv);
469 #define RTE_PMD_REGISTER_CRYPTO_DRIVER(crypto_drv, drv, driver_id)\
470 RTE_INIT(init_ ##driver_id)\
472 driver_id = rte_cryptodev_allocate_driver(&crypto_drv, &(drv));\
476 get_sym_session_private_data(const struct rte_cryptodev_sym_session *sess,
478 if (unlikely(sess->nb_drivers <= driver_id))
481 return sess->sess_data[driver_id].data;
485 set_sym_session_private_data(struct rte_cryptodev_sym_session *sess,
486 uint8_t driver_id, void *private_data)
488 if (unlikely(sess->nb_drivers <= driver_id)) {
489 CDEV_LOG_ERR("Set private data for driver %u not allowed\n",
494 sess->sess_data[driver_id].data = private_data;
498 get_asym_session_private_data(const struct rte_cryptodev_asym_session *sess,
500 return sess->sess_private_data[driver_id];
504 set_asym_session_private_data(struct rte_cryptodev_asym_session *sess,
505 uint8_t driver_id, void *private_data)
507 sess->sess_private_data[driver_id] = private_data;
514 #endif /* _RTE_CRYPTODEV_PMD_H_ */