4 * Copyright(c) 2016 Intel Corporation. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
16 * * Neither the name of Intel Corporation nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include <rte_common.h>
34 #include <rte_config.h>
35 #include <rte_hexdump.h>
36 #include <rte_cryptodev.h>
37 #include <rte_cryptodev_pmd.h>
39 #include <rte_malloc.h>
40 #include <rte_cpuflags.h>
42 #include "rte_zuc_pmd_private.h"
44 #define ZUC_DIGEST_LENGTH 4
45 #define ZUC_MAX_BURST 8
49 * Global static parameter used to create a unique name for each ZUC
52 static unsigned unique_name_id
;
55 create_unique_device_name(char *name
, size_t size
)
62 ret
= snprintf(name
, size
, "%s_%u", RTE_STR(CRYPTODEV_NAME_ZUC_PMD
),
69 /** Get xform chain order. */
70 static enum zuc_operation
71 zuc_get_mode(const struct rte_crypto_sym_xform
*xform
)
74 return ZUC_OP_NOT_SUPPORTED
;
77 if (xform
->next
->next
!= NULL
)
78 return ZUC_OP_NOT_SUPPORTED
;
80 if (xform
->type
== RTE_CRYPTO_SYM_XFORM_AUTH
) {
81 if (xform
->next
== NULL
)
82 return ZUC_OP_ONLY_AUTH
;
83 else if (xform
->next
->type
== RTE_CRYPTO_SYM_XFORM_CIPHER
)
84 return ZUC_OP_AUTH_CIPHER
;
86 return ZUC_OP_NOT_SUPPORTED
;
89 if (xform
->type
== RTE_CRYPTO_SYM_XFORM_CIPHER
) {
90 if (xform
->next
== NULL
)
91 return ZUC_OP_ONLY_CIPHER
;
92 else if (xform
->next
->type
== RTE_CRYPTO_SYM_XFORM_AUTH
)
93 return ZUC_OP_CIPHER_AUTH
;
95 return ZUC_OP_NOT_SUPPORTED
;
98 return ZUC_OP_NOT_SUPPORTED
;
102 /** Parse crypto xform chain and set private session parameters. */
104 zuc_set_session_parameters(struct zuc_session
*sess
,
105 const struct rte_crypto_sym_xform
*xform
)
107 const struct rte_crypto_sym_xform
*auth_xform
= NULL
;
108 const struct rte_crypto_sym_xform
*cipher_xform
= NULL
;
109 enum zuc_operation mode
;
111 /* Select Crypto operation - hash then cipher / cipher then hash */
112 mode
= zuc_get_mode(xform
);
115 case ZUC_OP_CIPHER_AUTH
:
116 auth_xform
= xform
->next
;
119 case ZUC_OP_ONLY_CIPHER
:
120 cipher_xform
= xform
;
122 case ZUC_OP_AUTH_CIPHER
:
123 cipher_xform
= xform
->next
;
125 case ZUC_OP_ONLY_AUTH
:
128 case ZUC_OP_NOT_SUPPORTED
:
130 ZUC_LOG_ERR("Unsupported operation chain order parameter");
135 /* Only ZUC EEA3 supported */
136 if (cipher_xform
->cipher
.algo
!= RTE_CRYPTO_CIPHER_ZUC_EEA3
)
139 memcpy(sess
->pKey_cipher
, xform
->cipher
.key
.data
, ZUC_IV_KEY_LENGTH
);
143 /* Only ZUC EIA3 supported */
144 if (auth_xform
->auth
.algo
!= RTE_CRYPTO_AUTH_ZUC_EIA3
)
146 sess
->auth_op
= auth_xform
->auth
.op
;
148 memcpy(sess
->pKey_hash
, xform
->auth
.key
.data
, ZUC_IV_KEY_LENGTH
);
157 /** Get ZUC session. */
158 static struct zuc_session
*
159 zuc_get_session(struct zuc_qp
*qp
, struct rte_crypto_op
*op
)
161 struct zuc_session
*sess
;
163 if (op
->sym
->sess_type
== RTE_CRYPTO_SYM_OP_WITH_SESSION
) {
164 if (unlikely(op
->sym
->session
->dev_type
!=
165 RTE_CRYPTODEV_ZUC_PMD
))
168 sess
= (struct zuc_session
*)op
->sym
->session
->_private
;
170 struct rte_cryptodev_session
*c_sess
= NULL
;
172 if (rte_mempool_get(qp
->sess_mp
, (void **)&c_sess
))
175 sess
= (struct zuc_session
*)c_sess
->_private
;
177 if (unlikely(zuc_set_session_parameters(sess
,
178 op
->sym
->xform
) != 0))
185 /** Encrypt/decrypt mbufs with same cipher key. */
187 process_zuc_cipher_op(struct rte_crypto_op
**ops
,
188 struct zuc_session
*session
,
192 uint8_t processed_ops
= 0;
193 uint8_t *src
[ZUC_MAX_BURST
], *dst
[ZUC_MAX_BURST
];
194 uint8_t *IV
[ZUC_MAX_BURST
];
195 uint32_t num_bytes
[ZUC_MAX_BURST
];
196 uint8_t *cipher_keys
[ZUC_MAX_BURST
];
198 for (i
= 0; i
< num_ops
; i
++) {
200 if (unlikely(ops
[i
]->sym
->cipher
.iv
.length
!= ZUC_IV_KEY_LENGTH
)) {
201 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_INVALID_ARGS
;
206 if (((ops
[i
]->sym
->cipher
.data
.length
% BYTE_LEN
) != 0)
207 || ((ops
[i
]->sym
->cipher
.data
.offset
209 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_INVALID_ARGS
;
210 ZUC_LOG_ERR("Data Length or offset");
214 src
[i
] = rte_pktmbuf_mtod(ops
[i
]->sym
->m_src
, uint8_t *) +
215 (ops
[i
]->sym
->cipher
.data
.offset
>> 3);
216 dst
[i
] = ops
[i
]->sym
->m_dst
?
217 rte_pktmbuf_mtod(ops
[i
]->sym
->m_dst
, uint8_t *) +
218 (ops
[i
]->sym
->cipher
.data
.offset
>> 3) :
219 rte_pktmbuf_mtod(ops
[i
]->sym
->m_src
, uint8_t *) +
220 (ops
[i
]->sym
->cipher
.data
.offset
>> 3);
221 IV
[i
] = ops
[i
]->sym
->cipher
.iv
.data
;
222 num_bytes
[i
] = ops
[i
]->sym
->cipher
.data
.length
>> 3;
224 cipher_keys
[i
] = session
->pKey_cipher
;
229 sso_zuc_eea3_n_buffer(cipher_keys
, IV
, src
, dst
,
230 num_bytes
, processed_ops
);
232 return processed_ops
;
235 /** Generate/verify hash from mbufs with same hash key. */
237 process_zuc_hash_op(struct rte_crypto_op
**ops
,
238 struct zuc_session
*session
,
242 uint8_t processed_ops
= 0;
245 uint32_t length_in_bits
;
247 for (i
= 0; i
< num_ops
; i
++) {
248 if (unlikely(ops
[i
]->sym
->auth
.aad
.length
!= ZUC_IV_KEY_LENGTH
)) {
249 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_INVALID_ARGS
;
254 if (unlikely(ops
[i
]->sym
->auth
.digest
.length
!= ZUC_DIGEST_LENGTH
)) {
255 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_INVALID_ARGS
;
256 ZUC_LOG_ERR("digest");
260 /* Data must be byte aligned */
261 if ((ops
[i
]->sym
->auth
.data
.offset
% BYTE_LEN
) != 0) {
262 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_INVALID_ARGS
;
263 ZUC_LOG_ERR("Offset");
267 length_in_bits
= ops
[i
]->sym
->auth
.data
.length
;
269 src
= rte_pktmbuf_mtod(ops
[i
]->sym
->m_src
, uint8_t *) +
270 (ops
[i
]->sym
->auth
.data
.offset
>> 3);
272 if (session
->auth_op
== RTE_CRYPTO_AUTH_OP_VERIFY
) {
273 dst
= (uint32_t *)rte_pktmbuf_append(ops
[i
]->sym
->m_src
,
274 ops
[i
]->sym
->auth
.digest
.length
);
276 sso_zuc_eia3_1_buffer(session
->pKey_hash
,
277 ops
[i
]->sym
->auth
.aad
.data
, src
,
278 length_in_bits
, dst
);
280 if (memcmp(dst
, ops
[i
]->sym
->auth
.digest
.data
,
281 ops
[i
]->sym
->auth
.digest
.length
) != 0)
282 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_AUTH_FAILED
;
284 /* Trim area used for digest from mbuf. */
285 rte_pktmbuf_trim(ops
[i
]->sym
->m_src
,
286 ops
[i
]->sym
->auth
.digest
.length
);
288 dst
= (uint32_t *)ops
[i
]->sym
->auth
.digest
.data
;
290 sso_zuc_eia3_1_buffer(session
->pKey_hash
,
291 ops
[i
]->sym
->auth
.aad
.data
, src
,
292 length_in_bits
, dst
);
297 return processed_ops
;
300 /** Process a batch of crypto ops which shares the same session. */
302 process_ops(struct rte_crypto_op
**ops
, struct zuc_session
*session
,
303 struct zuc_qp
*qp
, uint8_t num_ops
,
304 uint16_t *accumulated_enqueued_ops
)
307 unsigned enqueued_ops
, processed_ops
;
309 switch (session
->op
) {
310 case ZUC_OP_ONLY_CIPHER
:
311 processed_ops
= process_zuc_cipher_op(ops
,
314 case ZUC_OP_ONLY_AUTH
:
315 processed_ops
= process_zuc_hash_op(ops
, session
,
318 case ZUC_OP_CIPHER_AUTH
:
319 processed_ops
= process_zuc_cipher_op(ops
, session
,
321 process_zuc_hash_op(ops
, session
, processed_ops
);
323 case ZUC_OP_AUTH_CIPHER
:
324 processed_ops
= process_zuc_hash_op(ops
, session
,
326 process_zuc_cipher_op(ops
, session
, processed_ops
);
329 /* Operation not supported. */
333 for (i
= 0; i
< num_ops
; i
++) {
335 * If there was no error/authentication failure,
336 * change status to successful.
338 if (ops
[i
]->status
== RTE_CRYPTO_OP_STATUS_NOT_PROCESSED
)
339 ops
[i
]->status
= RTE_CRYPTO_OP_STATUS_SUCCESS
;
340 /* Free session if a session-less crypto op. */
341 if (ops
[i
]->sym
->sess_type
== RTE_CRYPTO_SYM_OP_SESSIONLESS
) {
342 rte_mempool_put(qp
->sess_mp
, ops
[i
]->sym
->session
);
343 ops
[i
]->sym
->session
= NULL
;
347 enqueued_ops
= rte_ring_enqueue_burst(qp
->processed_ops
,
348 (void **)ops
, processed_ops
);
349 qp
->qp_stats
.enqueued_count
+= enqueued_ops
;
350 *accumulated_enqueued_ops
+= enqueued_ops
;
356 zuc_pmd_enqueue_burst(void *queue_pair
, struct rte_crypto_op
**ops
,
359 struct rte_crypto_op
*c_ops
[ZUC_MAX_BURST
];
360 struct rte_crypto_op
*curr_c_op
;
362 struct zuc_session
*prev_sess
= NULL
, *curr_sess
= NULL
;
363 struct zuc_qp
*qp
= queue_pair
;
365 uint8_t burst_size
= 0;
366 uint16_t enqueued_ops
= 0;
367 uint8_t processed_ops
;
369 for (i
= 0; i
< nb_ops
; i
++) {
372 /* Set status as enqueued (not processed yet) by default. */
373 curr_c_op
->status
= RTE_CRYPTO_OP_STATUS_NOT_PROCESSED
;
375 curr_sess
= zuc_get_session(qp
, curr_c_op
);
376 if (unlikely(curr_sess
== NULL
||
377 curr_sess
->op
== ZUC_OP_NOT_SUPPORTED
)) {
379 RTE_CRYPTO_OP_STATUS_INVALID_SESSION
;
383 /* Batch ops that share the same session. */
384 if (prev_sess
== NULL
) {
385 prev_sess
= curr_sess
;
386 c_ops
[burst_size
++] = curr_c_op
;
387 } else if (curr_sess
== prev_sess
) {
388 c_ops
[burst_size
++] = curr_c_op
;
390 * When there are enough ops to process in a batch,
391 * process them, and start a new batch.
393 if (burst_size
== ZUC_MAX_BURST
) {
394 processed_ops
= process_ops(c_ops
, prev_sess
,
395 qp
, burst_size
, &enqueued_ops
);
396 if (processed_ops
< burst_size
) {
406 * Different session, process the ops
407 * of the previous session.
409 processed_ops
= process_ops(c_ops
, prev_sess
,
410 qp
, burst_size
, &enqueued_ops
);
411 if (processed_ops
< burst_size
) {
417 prev_sess
= curr_sess
;
419 c_ops
[burst_size
++] = curr_c_op
;
423 if (burst_size
!= 0) {
424 /* Process the crypto ops of the last session. */
425 processed_ops
= process_ops(c_ops
, prev_sess
,
426 qp
, burst_size
, &enqueued_ops
);
429 qp
->qp_stats
.enqueue_err_count
+= nb_ops
- enqueued_ops
;
434 zuc_pmd_dequeue_burst(void *queue_pair
,
435 struct rte_crypto_op
**c_ops
, uint16_t nb_ops
)
437 struct zuc_qp
*qp
= queue_pair
;
439 unsigned nb_dequeued
;
441 nb_dequeued
= rte_ring_dequeue_burst(qp
->processed_ops
,
442 (void **)c_ops
, nb_ops
);
443 qp
->qp_stats
.dequeued_count
+= nb_dequeued
;
448 static int cryptodev_zuc_remove(const char *name
);
451 cryptodev_zuc_create(const char *name
,
452 struct rte_crypto_vdev_init_params
*init_params
)
454 struct rte_cryptodev
*dev
;
455 char crypto_dev_name
[RTE_CRYPTODEV_NAME_MAX_LEN
];
456 struct zuc_private
*internals
;
457 uint64_t cpu_flags
= 0;
459 /* Check CPU for supported vector instruction set */
460 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1
))
461 cpu_flags
|= RTE_CRYPTODEV_FF_CPU_SSE
;
463 ZUC_LOG_ERR("Vector instructions are not supported by CPU");
468 /* Create a unique device name. */
469 if (create_unique_device_name(crypto_dev_name
,
470 RTE_CRYPTODEV_NAME_MAX_LEN
) != 0) {
471 ZUC_LOG_ERR("failed to create unique cryptodev name");
475 dev
= rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name
,
476 sizeof(struct zuc_private
), init_params
->socket_id
);
478 ZUC_LOG_ERR("failed to create cryptodev vdev");
482 dev
->dev_type
= RTE_CRYPTODEV_ZUC_PMD
;
483 dev
->dev_ops
= rte_zuc_pmd_ops
;
485 /* Register RX/TX burst functions for data path. */
486 dev
->dequeue_burst
= zuc_pmd_dequeue_burst
;
487 dev
->enqueue_burst
= zuc_pmd_enqueue_burst
;
489 dev
->feature_flags
= RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO
|
490 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING
|
493 internals
= dev
->data
->dev_private
;
495 internals
->max_nb_queue_pairs
= init_params
->max_nb_queue_pairs
;
496 internals
->max_nb_sessions
= init_params
->max_nb_sessions
;
500 ZUC_LOG_ERR("driver %s: cryptodev_zuc_create failed", name
);
502 cryptodev_zuc_remove(crypto_dev_name
);
507 cryptodev_zuc_probe(const char *name
,
508 const char *input_args
)
510 struct rte_crypto_vdev_init_params init_params
= {
511 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS
,
512 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS
,
516 rte_cryptodev_parse_vdev_init_params(&init_params
, input_args
);
518 RTE_LOG(INFO
, PMD
, "Initialising %s on NUMA node %d\n", name
,
519 init_params
.socket_id
);
520 RTE_LOG(INFO
, PMD
, " Max number of queue pairs = %d\n",
521 init_params
.max_nb_queue_pairs
);
522 RTE_LOG(INFO
, PMD
, " Max number of sessions = %d\n",
523 init_params
.max_nb_sessions
);
525 return cryptodev_zuc_create(name
, &init_params
);
529 cryptodev_zuc_remove(const char *name
)
534 RTE_LOG(INFO
, PMD
, "Closing ZUC crypto device %s"
535 " on numa socket %u\n",
536 name
, rte_socket_id());
541 static struct rte_vdev_driver cryptodev_zuc_pmd_drv
= {
542 .probe
= cryptodev_zuc_probe
,
543 .remove
= cryptodev_zuc_remove
546 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ZUC_PMD
, cryptodev_zuc_pmd_drv
);
547 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ZUC_PMD
,
548 "max_nb_queue_pairs=<int> "
549 "max_nb_sessions=<int> "