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32 #ifndef _RTE_CRYPTODEV_PMD_H_
33 #define _RTE_CRYPTODEV_PMD_H_
39 * These API are from crypto PMD only and user applications should not call
50 #include <rte_malloc.h>
52 #include <rte_mempool.h>
54 #include <rte_common.h>
56 #include "rte_crypto.h"
57 #include "rte_cryptodev.h"
59 /** Global structure used for maintaining state of allocated crypto devices */
60 struct rte_cryptodev_global {
61 struct rte_cryptodev *devs; /**< Device information array */
62 struct rte_cryptodev_data *data[RTE_CRYPTO_MAX_DEVS];
63 /**< Device private data */
64 uint8_t nb_devs; /**< Number of devices found */
65 uint8_t max_devs; /**< Max number of devices */
68 /** pointer to global crypto devices data structure. */
69 extern struct rte_cryptodev_global *rte_cryptodev_globals;
72 * Get the rte_cryptodev structure device pointer for the device. Assumes a
75 * @param dev_id Device ID value to select the device structure.
78 * - The rte_cryptodev structure pointer for the given device ID.
80 struct rte_cryptodev *
81 rte_cryptodev_pmd_get_dev(uint8_t dev_id);
84 * Get the rte_cryptodev structure device pointer for the named device.
86 * @param name device name to select the device structure.
89 * - The rte_cryptodev structure pointer for the given device ID.
91 struct rte_cryptodev *
92 rte_cryptodev_pmd_get_named_dev(const char *name);
95 * Validate if the crypto device index is valid attached crypto device.
97 * @param dev_id Crypto device index.
100 * - If the device index is valid (1) or not (0).
103 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id);
106 * The pool of rte_cryptodev structures.
108 extern struct rte_cryptodev *rte_cryptodevs;
112 * Definitions of all functions exported by a driver through the
113 * the generic structure of type *crypto_dev_ops* supplied in the
114 * *rte_cryptodev* structure associated with a device.
118 * Function used to configure device.
120 * @param dev Crypto device pointer
121 * config Crypto device configurations
123 * @return Returns 0 on success
125 typedef int (*cryptodev_configure_t)(struct rte_cryptodev *dev,
126 struct rte_cryptodev_config *config);
129 * Function used to start a configured device.
131 * @param dev Crypto device pointer
133 * @return Returns 0 on success
135 typedef int (*cryptodev_start_t)(struct rte_cryptodev *dev);
138 * Function used to stop a configured device.
140 * @param dev Crypto device pointer
142 typedef void (*cryptodev_stop_t)(struct rte_cryptodev *dev);
145 * Function used to close a configured device.
147 * @param dev Crypto device pointer
150 * - EAGAIN if can't close as device is busy
152 typedef int (*cryptodev_close_t)(struct rte_cryptodev *dev);
156 * Function used to get statistics of a device.
158 * @param dev Crypto device pointer
159 * @param stats Pointer to crypto device stats structure to populate
161 typedef void (*cryptodev_stats_get_t)(struct rte_cryptodev *dev,
162 struct rte_cryptodev_stats *stats);
166 * Function used to reset statistics of a device.
168 * @param dev Crypto device pointer
170 typedef void (*cryptodev_stats_reset_t)(struct rte_cryptodev *dev);
174 * Function used to get specific information of a device.
176 * @param dev Crypto device pointer
178 typedef void (*cryptodev_info_get_t)(struct rte_cryptodev *dev,
179 struct rte_cryptodev_info *dev_info);
182 * Start queue pair of a device.
184 * @param dev Crypto device pointer
185 * @param qp_id Queue Pair Index
187 * @return Returns 0 on success.
189 typedef int (*cryptodev_queue_pair_start_t)(struct rte_cryptodev *dev,
193 * Stop queue pair of a device.
195 * @param dev Crypto device pointer
196 * @param qp_id Queue Pair Index
198 * @return Returns 0 on success.
200 typedef int (*cryptodev_queue_pair_stop_t)(struct rte_cryptodev *dev,
204 * Setup a queue pair for a device.
206 * @param dev Crypto device pointer
207 * @param qp_id Queue Pair Index
208 * @param qp_conf Queue configuration structure
209 * @param socket_id Socket Index
210 * @param session_pool Pointer to device session mempool
212 * @return Returns 0 on success.
214 typedef int (*cryptodev_queue_pair_setup_t)(struct rte_cryptodev *dev,
215 uint16_t qp_id, const struct rte_cryptodev_qp_conf *qp_conf,
216 int socket_id, struct rte_mempool *session_pool);
219 * Release memory resources allocated by given queue pair.
221 * @param dev Crypto device pointer
222 * @param qp_id Queue Pair Index
226 * - EAGAIN if can't close as device is busy
228 typedef int (*cryptodev_queue_pair_release_t)(struct rte_cryptodev *dev,
232 * Get number of available queue pairs of a device.
234 * @param dev Crypto device pointer
236 * @return Returns number of queue pairs on success.
238 typedef uint32_t (*cryptodev_queue_pair_count_t)(struct rte_cryptodev *dev);
241 * Create a session mempool to allocate sessions from
243 * @param dev Crypto device pointer
244 * @param nb_objs number of sessions objects in mempool
245 * @param obj_cache l-core object cache size, see *rte_ring_create*
246 * @param socket_id Socket Id to allocate mempool on.
249 * - On success returns a pointer to a rte_mempool
250 * - On failure returns a NULL pointer
252 typedef int (*cryptodev_sym_create_session_pool_t)(
253 struct rte_cryptodev *dev, unsigned nb_objs,
254 unsigned obj_cache_size, int socket_id);
258 * Get the size of a cryptodev session
260 * @param dev Crypto device pointer
263 * - On success returns the size of the session structure for device
264 * - On failure returns 0
266 typedef unsigned (*cryptodev_sym_get_session_private_size_t)(
267 struct rte_cryptodev *dev);
270 * Configure a Crypto session on a device.
272 * @param dev Crypto device pointer
273 * @param xform Single or chain of crypto xforms
274 * @param priv_sess Pointer to cryptodev's private session structure
275 * @param mp Mempool where the private session is allocated
278 * - Returns 0 if private session structure have been created successfully.
279 * - Returns -1 on failure.
281 typedef int (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev,
282 struct rte_crypto_sym_xform *xform,
283 struct rte_cryptodev_sym_session *session,
284 struct rte_mempool *mp);
287 * Free driver private session data.
289 * @param dev Crypto device pointer
290 * @param sess Cryptodev session structure
292 typedef void (*cryptodev_sym_free_session_t)(struct rte_cryptodev *dev,
293 struct rte_cryptodev_sym_session *sess);
296 * Optional API for drivers to attach sessions with queue pair.
297 * @param dev Crypto device pointer
298 * @param qp_id queue pair id for attaching session
299 * @param priv_sess Pointer to cryptodev's private session structure
301 * - Return 0 on success
303 typedef int (*cryptodev_sym_queue_pair_attach_session_t)(
304 struct rte_cryptodev *dev,
306 void *session_private);
309 * Optional API for drivers to detach sessions from queue pair.
310 * @param dev Crypto device pointer
311 * @param qp_id queue pair id for detaching session
312 * @param priv_sess Pointer to cryptodev's private session structure
314 * - Return 0 on success
316 typedef int (*cryptodev_sym_queue_pair_detach_session_t)(
317 struct rte_cryptodev *dev,
319 void *session_private);
321 /** Crypto device operations function pointer table */
322 struct rte_cryptodev_ops {
323 cryptodev_configure_t dev_configure; /**< Configure device. */
324 cryptodev_start_t dev_start; /**< Start device. */
325 cryptodev_stop_t dev_stop; /**< Stop device. */
326 cryptodev_close_t dev_close; /**< Close device. */
328 cryptodev_info_get_t dev_infos_get; /**< Get device info. */
330 cryptodev_stats_get_t stats_get;
331 /**< Get device statistics. */
332 cryptodev_stats_reset_t stats_reset;
333 /**< Reset device statistics. */
335 cryptodev_queue_pair_setup_t queue_pair_setup;
336 /**< Set up a device queue pair. */
337 cryptodev_queue_pair_release_t queue_pair_release;
338 /**< Release a queue pair. */
339 cryptodev_queue_pair_start_t queue_pair_start;
340 /**< Start a queue pair. */
341 cryptodev_queue_pair_stop_t queue_pair_stop;
342 /**< Stop a queue pair. */
343 cryptodev_queue_pair_count_t queue_pair_count;
344 /**< Get count of the queue pairs. */
346 cryptodev_sym_get_session_private_size_t session_get_size;
347 /**< Return private session. */
348 cryptodev_sym_configure_session_t session_configure;
349 /**< Configure a Crypto session. */
350 cryptodev_sym_free_session_t session_clear;
351 /**< Clear a Crypto sessions private data. */
352 cryptodev_sym_queue_pair_attach_session_t qp_attach_session;
353 /**< Attach session to queue pair. */
354 cryptodev_sym_queue_pair_attach_session_t qp_detach_session;
355 /**< Detach session from queue pair. */
360 * Function for internal use by dummy drivers primarily, e.g. ring-based
362 * Allocates a new cryptodev slot for an crypto device and returns the pointer
363 * to that slot for the driver to use.
365 * @param name Unique identifier name for each device
366 * @param socket_id Socket to allocate resources on.
368 * - Slot in the rte_dev_devices array for a new device;
370 struct rte_cryptodev *
371 rte_cryptodev_pmd_allocate(const char *name, int socket_id);
374 * Function for internal use by dummy drivers primarily, e.g. ring-based
376 * Release the specified cryptodev device.
379 * The *cryptodev* pointer is the address of the *rte_cryptodev* structure.
381 * - 0 on success, negative on error
384 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev);
387 * Executes all the user application registered callbacks for the specific
390 * @param dev Pointer to cryptodev struct
391 * @param event Crypto device interrupt event type.
396 void rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
397 enum rte_cryptodev_event_type event);
401 * Create unique device name
404 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix);
407 get_session_private_data(const struct rte_cryptodev_sym_session *sess,
409 return sess->sess_private_data[driver_id];
413 set_session_private_data(struct rte_cryptodev_sym_session *sess,
414 uint8_t driver_id, void *private_data)
416 sess->sess_private_data[driver_id] = private_data;
423 #endif /* _RTE_CRYPTODEV_PMD_H_ */