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33 #ifndef _RTE_CRYPTO_H_
34 #define _RTE_CRYPTO_H_
39 * RTE Cryptography Common Definitions
49 #include <rte_memory.h>
50 #include <rte_mempool.h>
52 #include "rte_crypto_sym.h"
54 /** Crypto operation types */
55 enum rte_crypto_op_type {
56 RTE_CRYPTO_OP_TYPE_UNDEFINED,
57 /**< Undefined operation type */
58 RTE_CRYPTO_OP_TYPE_SYMMETRIC,
59 /**< Symmetric operation */
62 /** Status of crypto operation */
63 enum rte_crypto_op_status {
64 RTE_CRYPTO_OP_STATUS_SUCCESS,
65 /**< Operation completed successfully */
66 RTE_CRYPTO_OP_STATUS_NOT_PROCESSED,
67 /**< Operation has not yet been processed by a crypto device */
68 RTE_CRYPTO_OP_STATUS_ENQUEUED,
69 /**< Operation is enqueued on device */
70 RTE_CRYPTO_OP_STATUS_AUTH_FAILED,
71 /**< Authentication verification failed */
72 RTE_CRYPTO_OP_STATUS_INVALID_SESSION,
74 * Symmetric operation failed due to invalid session arguments, or if
75 * in session-less mode, failed to allocate private operation material.
77 RTE_CRYPTO_OP_STATUS_INVALID_ARGS,
78 /**< Operation failed due to invalid arguments in request */
79 RTE_CRYPTO_OP_STATUS_ERROR,
80 /**< Error handling operation */
84 * Cryptographic Operation.
86 * This structure contains data relating to performing cryptographic
87 * operations. This operation structure is used to contain any operation which
88 * is supported by the cryptodev API, PMDs should check the type parameter to
89 * verify that the operation is a support function of the device. Crypto
90 * operations are enqueued and dequeued in crypto PMDs using the
91 * rte_cryptodev_enqueue_burst() / rte_cryptodev_dequeue_burst() .
93 struct rte_crypto_op {
94 enum rte_crypto_op_type type;
95 /**< operation type */
97 enum rte_crypto_op_status status;
99 * operation status - this is reset to
100 * RTE_CRYPTO_OP_STATUS_NOT_PROCESSED on allocation from mempool and
101 * will be set to RTE_CRYPTO_OP_STATUS_SUCCESS after crypto operation
102 * is successfully processed by a crypto PMD
105 struct rte_mempool *mempool;
106 /**< crypto operation mempool which operation is allocated from */
108 phys_addr_t phys_addr;
109 /**< physical address of crypto operation */
112 /**< Opaque pointer for user data */
115 struct rte_crypto_sym_op *sym;
116 /**< Symmetric operation parameters */
117 }; /**< operation specific parameters */
118 } __rte_cache_aligned;
121 * Reset the fields of a crypto operation to their default values.
123 * @param op The crypto operation to be reset.
124 * @param type The crypto operation type.
127 __rte_crypto_op_reset(struct rte_crypto_op *op, enum rte_crypto_op_type type)
130 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
133 case RTE_CRYPTO_OP_TYPE_SYMMETRIC:
134 /** Symmetric operation structure starts after the end of the
135 * rte_crypto_op structure.
137 op->sym = (struct rte_crypto_sym_op *)(op + 1);
140 __rte_crypto_sym_op_reset(op->sym);
146 op->opaque_data = NULL;
150 * Private data structure belonging to a crypto symmetric operation pool.
152 struct rte_crypto_op_pool_private {
153 enum rte_crypto_op_type type;
154 /**< Crypto op pool type operation. */
156 /**< Size of private area in each crypto operation. */
161 * Returns the size of private data allocated with each rte_crypto_op object by
164 * @param mempool rte_crypto_op mempool
166 * @return private data size
168 static inline uint16_t
169 __rte_crypto_op_get_priv_data_size(struct rte_mempool *mempool)
171 struct rte_crypto_op_pool_private *priv =
172 (struct rte_crypto_op_pool_private *) rte_mempool_get_priv(mempool);
174 return priv->priv_size;
179 * Creates a crypto operation pool
181 * @param name pool name
182 * @param type crypto operation type, use
183 * RTE_CRYPTO_OP_TYPE_UNDEFINED for a pool which
184 * supports all operation types
185 * @param nb_elts number of elements in pool
186 * @param cache_size Number of elements to cache on lcore, see
187 * *rte_mempool_create* for further details about
189 * @param priv_size Size of private data to allocate with each
191 * @param socket_id Socket to allocate memory on
194 * - On success pointer to mempool
197 extern struct rte_mempool *
198 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
199 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
203 * Bulk allocate raw element from mempool and return as crypto operations
205 * @param mempool crypto operation mempool.
206 * @param type crypto operation type.
207 * @param ops Array to place allocated crypto operations
208 * @param nb_ops Number of crypto operations to allocate
211 * - On success returns number of ops allocated
214 __rte_crypto_op_raw_bulk_alloc(struct rte_mempool *mempool,
215 enum rte_crypto_op_type type,
216 struct rte_crypto_op **ops, uint16_t nb_ops)
218 struct rte_crypto_op_pool_private *priv;
220 priv = (struct rte_crypto_op_pool_private *) rte_mempool_get_priv(mempool);
221 if (unlikely(priv->type != type &&
222 priv->type != RTE_CRYPTO_OP_TYPE_UNDEFINED))
225 if (rte_mempool_get_bulk(mempool, (void **)ops, nb_ops) == 0)
232 * Allocate a crypto operation from a mempool with default parameters set
234 * @param mempool crypto operation mempool
235 * @param type operation type to allocate
238 * - On success returns a valid rte_crypto_op structure
239 * - On failure returns NULL
241 static inline struct rte_crypto_op *
242 rte_crypto_op_alloc(struct rte_mempool *mempool, enum rte_crypto_op_type type)
244 struct rte_crypto_op *op = NULL;
247 retval = __rte_crypto_op_raw_bulk_alloc(mempool, type, &op, 1);
248 if (unlikely(retval != 1))
251 __rte_crypto_op_reset(op, type);
258 * Bulk allocate crypto operations from a mempool with default parameters set
260 * @param mempool crypto operation mempool
261 * @param type operation type to allocate
262 * @param ops Array to place allocated crypto operations
263 * @param nb_ops Number of crypto operations to allocate
266 * - On success returns a valid rte_crypto_op structure
267 * - On failure returns NULL
270 static inline unsigned
271 rte_crypto_op_bulk_alloc(struct rte_mempool *mempool,
272 enum rte_crypto_op_type type,
273 struct rte_crypto_op **ops, uint16_t nb_ops)
277 if (unlikely(__rte_crypto_op_raw_bulk_alloc(mempool, type, ops, nb_ops)
281 for (i = 0; i < nb_ops; i++)
282 __rte_crypto_op_reset(ops[i], type);
290 * Returns a pointer to the private data of a crypto operation if
291 * that operation has enough capacity for requested size.
293 * @param op crypto operation.
294 * @param size size of space requested in private data.
297 * - if sufficient space available returns pointer to start of private data
298 * - if insufficient space returns NULL
301 __rte_crypto_op_get_priv_data(struct rte_crypto_op *op, uint32_t size)
305 if (likely(op->mempool != NULL)) {
306 priv_size = __rte_crypto_op_get_priv_data_size(op->mempool);
308 if (likely(priv_size >= size))
309 return (void *)((uint8_t *)(op + 1) +
310 sizeof(struct rte_crypto_sym_op));
317 * free crypto operation structure
318 * If operation has been allocate from a rte_mempool, then the operation will
319 * be returned to the mempool.
321 * @param op symmetric crypto operation
324 rte_crypto_op_free(struct rte_crypto_op *op)
326 if (op != NULL && op->mempool != NULL)
327 rte_mempool_put(op->mempool, op);
331 * Allocate a symmetric crypto operation in the private data of an mbuf.
333 * @param m mbuf which is associated with the crypto operation, the
334 * operation will be allocated in the private data of that
338 * - On success returns a pointer to the crypto operation.
339 * - On failure returns NULL.
341 static inline struct rte_crypto_op *
342 rte_crypto_sym_op_alloc_from_mbuf_priv_data(struct rte_mbuf *m)
344 if (unlikely(m == NULL))
348 * check that the mbuf's private data size is sufficient to contain a
351 if (unlikely(m->priv_size < (sizeof(struct rte_crypto_op) +
352 sizeof(struct rte_crypto_sym_op))))
355 /* private data starts immediately after the mbuf header in the mbuf. */
356 struct rte_crypto_op *op = (struct rte_crypto_op *)(m + 1);
358 __rte_crypto_op_reset(op, RTE_CRYPTO_OP_TYPE_SYMMETRIC);
367 * Allocate space for symmetric crypto xforms in the private data space of the
368 * crypto operation. This also defaults the crypto xform type and configures
369 * the chaining of the xforms in the crypto operation
372 * - On success returns pointer to first crypto xform in crypto operations chain
373 * - On failure returns NULL
375 static inline struct rte_crypto_sym_xform *
376 rte_crypto_op_sym_xforms_alloc(struct rte_crypto_op *op, uint8_t nb_xforms)
381 if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC))
384 size = sizeof(struct rte_crypto_sym_xform) * nb_xforms;
386 priv_data = __rte_crypto_op_get_priv_data(op, size);
387 if (priv_data == NULL)
390 return __rte_crypto_sym_op_sym_xforms_alloc(op->sym, priv_data,
396 * Attach a session to a crypto operation
398 * @param op crypto operation, must be of type symmetric
399 * @param sess cryptodev session
402 rte_crypto_op_attach_sym_session(struct rte_crypto_op *op,
403 struct rte_cryptodev_sym_session *sess)
405 if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC))
408 return __rte_crypto_sym_op_attach_sym_session(op->sym, sess);
415 #endif /* _RTE_CRYPTO_H_ */