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Tom Lendacky63b94502013-11-12 11:46:16 -06001/*
2 * AMD Cryptographic Coprocessor (CCP) driver
3 *
Gary R Hook58ea8ab2016-04-18 09:21:44 -05004 * Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
Tom Lendacky63b94502013-11-12 11:46:16 -06005 *
6 * Author: Tom Lendacky <thomas.lendacky@amd.com>
Gary R Hook58ea8ab2016-04-18 09:21:44 -05007 * Author: Gary R Hook <gary.hook@amd.com>
Tom Lendacky63b94502013-11-12 11:46:16 -06008 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#ifndef __CPP_H__
15#define __CPP_H__
16
17#include <linux/scatterlist.h>
18#include <linux/workqueue.h>
19#include <linux/list.h>
20#include <crypto/aes.h>
21#include <crypto/sha.h>
22
23
24struct ccp_device;
25struct ccp_cmd;
26
Tom Lendackydb34cf92014-01-06 13:34:29 -060027#if defined(CONFIG_CRYPTO_DEV_CCP_DD) || \
28 defined(CONFIG_CRYPTO_DEV_CCP_DD_MODULE)
29
Tom Lendacky63b94502013-11-12 11:46:16 -060030/**
Tom Lendackyc9f21cb2014-09-05 10:31:09 -050031 * ccp_present - check if a CCP device is present
32 *
33 * Returns zero if a CCP device is present, -ENODEV otherwise.
34 */
35int ccp_present(void);
36
Gary R Hookc7019c42016-03-01 13:49:15 -060037#define CCP_VSIZE 16
38#define CCP_VMASK ((unsigned int)((1 << CCP_VSIZE) - 1))
39#define CCP_VERSION(v, r) ((unsigned int)((v << CCP_VSIZE) \
40 | (r & CCP_VMASK)))
41
42/**
43 * ccp_version - get the version of the CCP
44 *
45 * Returns a positive version number, or zero if no CCP
46 */
47unsigned int ccp_version(void);
48
Tom Lendackyc9f21cb2014-09-05 10:31:09 -050049/**
Tom Lendacky63b94502013-11-12 11:46:16 -060050 * ccp_enqueue_cmd - queue an operation for processing by the CCP
51 *
52 * @cmd: ccp_cmd struct to be processed
53 *
54 * Refer to the ccp_cmd struct below for required fields.
55 *
56 * Queue a cmd to be processed by the CCP. If queueing the cmd
57 * would exceed the defined length of the cmd queue the cmd will
58 * only be queued if the CCP_CMD_MAY_BACKLOG flag is set and will
59 * result in a return code of -EBUSY.
60 *
61 * The callback routine specified in the ccp_cmd struct will be
62 * called to notify the caller of completion (if the cmd was not
63 * backlogged) or advancement out of the backlog. If the cmd has
64 * advanced out of the backlog the "err" value of the callback
65 * will be -EINPROGRESS. Any other "err" value during callback is
66 * the result of the operation.
67 *
68 * The cmd has been successfully queued if:
69 * the return code is -EINPROGRESS or
70 * the return code is -EBUSY and CCP_CMD_MAY_BACKLOG flag is set
71 */
72int ccp_enqueue_cmd(struct ccp_cmd *cmd);
73
Tom Lendackydb34cf92014-01-06 13:34:29 -060074#else /* CONFIG_CRYPTO_DEV_CCP_DD is not enabled */
75
Tom Lendackyc9f21cb2014-09-05 10:31:09 -050076static inline int ccp_present(void)
77{
78 return -ENODEV;
79}
80
Gary R Hookc7019c42016-03-01 13:49:15 -060081static inline unsigned int ccp_version(void)
82{
83 return 0;
84}
85
Tom Lendackydb34cf92014-01-06 13:34:29 -060086static inline int ccp_enqueue_cmd(struct ccp_cmd *cmd)
87{
88 return -ENODEV;
89}
90
91#endif /* CONFIG_CRYPTO_DEV_CCP_DD */
92
Tom Lendacky63b94502013-11-12 11:46:16 -060093
94/***** AES engine *****/
95/**
96 * ccp_aes_type - AES key size
97 *
98 * @CCP_AES_TYPE_128: 128-bit key
99 * @CCP_AES_TYPE_192: 192-bit key
100 * @CCP_AES_TYPE_256: 256-bit key
101 */
102enum ccp_aes_type {
103 CCP_AES_TYPE_128 = 0,
104 CCP_AES_TYPE_192,
105 CCP_AES_TYPE_256,
106 CCP_AES_TYPE__LAST,
107};
108
109/**
110 * ccp_aes_mode - AES operation mode
111 *
112 * @CCP_AES_MODE_ECB: ECB mode
113 * @CCP_AES_MODE_CBC: CBC mode
114 * @CCP_AES_MODE_OFB: OFB mode
115 * @CCP_AES_MODE_CFB: CFB mode
116 * @CCP_AES_MODE_CTR: CTR mode
117 * @CCP_AES_MODE_CMAC: CMAC mode
118 */
119enum ccp_aes_mode {
120 CCP_AES_MODE_ECB = 0,
121 CCP_AES_MODE_CBC,
122 CCP_AES_MODE_OFB,
123 CCP_AES_MODE_CFB,
124 CCP_AES_MODE_CTR,
125 CCP_AES_MODE_CMAC,
126 CCP_AES_MODE__LAST,
127};
128
129/**
130 * ccp_aes_mode - AES operation mode
131 *
132 * @CCP_AES_ACTION_DECRYPT: AES decrypt operation
133 * @CCP_AES_ACTION_ENCRYPT: AES encrypt operation
134 */
135enum ccp_aes_action {
136 CCP_AES_ACTION_DECRYPT = 0,
137 CCP_AES_ACTION_ENCRYPT,
138 CCP_AES_ACTION__LAST,
139};
140
141/**
142 * struct ccp_aes_engine - CCP AES operation
143 * @type: AES operation key size
144 * @mode: AES operation mode
145 * @action: AES operation (decrypt/encrypt)
146 * @key: key to be used for this AES operation
147 * @key_len: length in bytes of key
148 * @iv: IV to be used for this AES operation
149 * @iv_len: length in bytes of iv
150 * @src: data to be used for this operation
151 * @dst: data produced by this operation
152 * @src_len: length in bytes of data used for this operation
153 * @cmac_final: indicates final operation when running in CMAC mode
154 * @cmac_key: K1/K2 key used in final CMAC operation
155 * @cmac_key_len: length in bytes of cmac_key
156 *
157 * Variables required to be set when calling ccp_enqueue_cmd():
158 * - type, mode, action, key, key_len, src, dst, src_len
159 * - iv, iv_len for any mode other than ECB
160 * - cmac_final for CMAC mode
161 * - cmac_key, cmac_key_len for CMAC mode if cmac_final is non-zero
162 *
163 * The iv variable is used as both input and output. On completion of the
164 * AES operation the new IV overwrites the old IV.
165 */
166struct ccp_aes_engine {
167 enum ccp_aes_type type;
168 enum ccp_aes_mode mode;
169 enum ccp_aes_action action;
170
171 struct scatterlist *key;
172 u32 key_len; /* In bytes */
173
174 struct scatterlist *iv;
175 u32 iv_len; /* In bytes */
176
177 struct scatterlist *src, *dst;
Tom Lendacky81a59f02014-01-06 13:34:17 -0600178 u64 src_len; /* In bytes */
Tom Lendacky63b94502013-11-12 11:46:16 -0600179
180 u32 cmac_final; /* Indicates final cmac cmd */
181 struct scatterlist *cmac_key; /* K1/K2 cmac key required for
182 * final cmac cmd */
183 u32 cmac_key_len; /* In bytes */
184};
185
186/***** XTS-AES engine *****/
187/**
188 * ccp_xts_aes_unit_size - XTS unit size
189 *
190 * @CCP_XTS_AES_UNIT_SIZE_16: Unit size of 16 bytes
191 * @CCP_XTS_AES_UNIT_SIZE_512: Unit size of 512 bytes
192 * @CCP_XTS_AES_UNIT_SIZE_1024: Unit size of 1024 bytes
193 * @CCP_XTS_AES_UNIT_SIZE_2048: Unit size of 2048 bytes
194 * @CCP_XTS_AES_UNIT_SIZE_4096: Unit size of 4096 bytes
195 */
196enum ccp_xts_aes_unit_size {
197 CCP_XTS_AES_UNIT_SIZE_16 = 0,
198 CCP_XTS_AES_UNIT_SIZE_512,
199 CCP_XTS_AES_UNIT_SIZE_1024,
200 CCP_XTS_AES_UNIT_SIZE_2048,
201 CCP_XTS_AES_UNIT_SIZE_4096,
202 CCP_XTS_AES_UNIT_SIZE__LAST,
203};
204
205/**
206 * struct ccp_xts_aes_engine - CCP XTS AES operation
207 * @action: AES operation (decrypt/encrypt)
208 * @unit_size: unit size of the XTS operation
209 * @key: key to be used for this XTS AES operation
210 * @key_len: length in bytes of key
211 * @iv: IV to be used for this XTS AES operation
212 * @iv_len: length in bytes of iv
213 * @src: data to be used for this operation
214 * @dst: data produced by this operation
215 * @src_len: length in bytes of data used for this operation
216 * @final: indicates final XTS operation
217 *
218 * Variables required to be set when calling ccp_enqueue_cmd():
219 * - action, unit_size, key, key_len, iv, iv_len, src, dst, src_len, final
220 *
221 * The iv variable is used as both input and output. On completion of the
222 * AES operation the new IV overwrites the old IV.
223 */
224struct ccp_xts_aes_engine {
225 enum ccp_aes_action action;
226 enum ccp_xts_aes_unit_size unit_size;
227
228 struct scatterlist *key;
229 u32 key_len; /* In bytes */
230
231 struct scatterlist *iv;
232 u32 iv_len; /* In bytes */
233
234 struct scatterlist *src, *dst;
Tom Lendacky81a59f02014-01-06 13:34:17 -0600235 u64 src_len; /* In bytes */
Tom Lendacky63b94502013-11-12 11:46:16 -0600236
237 u32 final;
238};
239
240/***** SHA engine *****/
241#define CCP_SHA_BLOCKSIZE SHA256_BLOCK_SIZE
242#define CCP_SHA_CTXSIZE SHA256_DIGEST_SIZE
243
244/**
245 * ccp_sha_type - type of SHA operation
246 *
247 * @CCP_SHA_TYPE_1: SHA-1 operation
248 * @CCP_SHA_TYPE_224: SHA-224 operation
249 * @CCP_SHA_TYPE_256: SHA-256 operation
250 */
251enum ccp_sha_type {
252 CCP_SHA_TYPE_1 = 1,
253 CCP_SHA_TYPE_224,
254 CCP_SHA_TYPE_256,
255 CCP_SHA_TYPE__LAST,
256};
257
258/**
259 * struct ccp_sha_engine - CCP SHA operation
260 * @type: Type of SHA operation
261 * @ctx: current hash value
262 * @ctx_len: length in bytes of hash value
263 * @src: data to be used for this operation
264 * @src_len: length in bytes of data used for this operation
Tom Lendackyc11baa02014-01-24 16:18:02 -0600265 * @opad: data to be used for final HMAC operation
266 * @opad_len: length in bytes of data used for final HMAC operation
267 * @first: indicates first SHA operation
Tom Lendacky63b94502013-11-12 11:46:16 -0600268 * @final: indicates final SHA operation
269 * @msg_bits: total length of the message in bits used in final SHA operation
270 *
271 * Variables required to be set when calling ccp_enqueue_cmd():
272 * - type, ctx, ctx_len, src, src_len, final
273 * - msg_bits if final is non-zero
274 *
275 * The ctx variable is used as both input and output. On completion of the
276 * SHA operation the new hash value overwrites the old hash value.
277 */
278struct ccp_sha_engine {
279 enum ccp_sha_type type;
280
281 struct scatterlist *ctx;
282 u32 ctx_len; /* In bytes */
283
284 struct scatterlist *src;
Tom Lendacky81a59f02014-01-06 13:34:17 -0600285 u64 src_len; /* In bytes */
Tom Lendacky63b94502013-11-12 11:46:16 -0600286
Tom Lendackyc11baa02014-01-24 16:18:02 -0600287 struct scatterlist *opad;
288 u32 opad_len; /* In bytes */
289
290 u32 first; /* Indicates first sha cmd */
Tom Lendacky63b94502013-11-12 11:46:16 -0600291 u32 final; /* Indicates final sha cmd */
292 u64 msg_bits; /* Message length in bits required for
293 * final sha cmd */
294};
295
296/***** RSA engine *****/
297/**
298 * struct ccp_rsa_engine - CCP RSA operation
299 * @key_size: length in bits of RSA key
300 * @exp: RSA exponent
301 * @exp_len: length in bytes of exponent
302 * @mod: RSA modulus
303 * @mod_len: length in bytes of modulus
304 * @src: data to be used for this operation
305 * @dst: data produced by this operation
306 * @src_len: length in bytes of data used for this operation
307 *
308 * Variables required to be set when calling ccp_enqueue_cmd():
309 * - key_size, exp, exp_len, mod, mod_len, src, dst, src_len
310 */
311struct ccp_rsa_engine {
312 u32 key_size; /* In bits */
313
314 struct scatterlist *exp;
315 u32 exp_len; /* In bytes */
316
317 struct scatterlist *mod;
318 u32 mod_len; /* In bytes */
319
320 struct scatterlist *src, *dst;
321 u32 src_len; /* In bytes */
322};
323
324/***** Passthru engine *****/
325/**
326 * ccp_passthru_bitwise - type of bitwise passthru operation
327 *
328 * @CCP_PASSTHRU_BITWISE_NOOP: no bitwise operation performed
329 * @CCP_PASSTHRU_BITWISE_AND: perform bitwise AND of src with mask
330 * @CCP_PASSTHRU_BITWISE_OR: perform bitwise OR of src with mask
331 * @CCP_PASSTHRU_BITWISE_XOR: perform bitwise XOR of src with mask
332 * @CCP_PASSTHRU_BITWISE_MASK: overwrite with mask
333 */
334enum ccp_passthru_bitwise {
335 CCP_PASSTHRU_BITWISE_NOOP = 0,
336 CCP_PASSTHRU_BITWISE_AND,
337 CCP_PASSTHRU_BITWISE_OR,
338 CCP_PASSTHRU_BITWISE_XOR,
339 CCP_PASSTHRU_BITWISE_MASK,
340 CCP_PASSTHRU_BITWISE__LAST,
341};
342
343/**
344 * ccp_passthru_byteswap - type of byteswap passthru operation
345 *
346 * @CCP_PASSTHRU_BYTESWAP_NOOP: no byte swapping performed
347 * @CCP_PASSTHRU_BYTESWAP_32BIT: swap bytes within 32-bit words
348 * @CCP_PASSTHRU_BYTESWAP_256BIT: swap bytes within 256-bit words
349 */
350enum ccp_passthru_byteswap {
351 CCP_PASSTHRU_BYTESWAP_NOOP = 0,
352 CCP_PASSTHRU_BYTESWAP_32BIT,
353 CCP_PASSTHRU_BYTESWAP_256BIT,
354 CCP_PASSTHRU_BYTESWAP__LAST,
355};
356
357/**
358 * struct ccp_passthru_engine - CCP pass-through operation
359 * @bit_mod: bitwise operation to perform
360 * @byte_swap: byteswap operation to perform
361 * @mask: mask to be applied to data
362 * @mask_len: length in bytes of mask
363 * @src: data to be used for this operation
364 * @dst: data produced by this operation
365 * @src_len: length in bytes of data used for this operation
366 * @final: indicate final pass-through operation
367 *
368 * Variables required to be set when calling ccp_enqueue_cmd():
369 * - bit_mod, byte_swap, src, dst, src_len
370 * - mask, mask_len if bit_mod is not CCP_PASSTHRU_BITWISE_NOOP
371 */
372struct ccp_passthru_engine {
373 enum ccp_passthru_bitwise bit_mod;
374 enum ccp_passthru_byteswap byte_swap;
375
376 struct scatterlist *mask;
377 u32 mask_len; /* In bytes */
378
379 struct scatterlist *src, *dst;
Tom Lendacky81a59f02014-01-06 13:34:17 -0600380 u64 src_len; /* In bytes */
Tom Lendacky63b94502013-11-12 11:46:16 -0600381
382 u32 final;
383};
384
Gary R Hook58ea8ab2016-04-18 09:21:44 -0500385/**
386 * struct ccp_passthru_nomap_engine - CCP pass-through operation
387 * without performing DMA mapping
388 * @bit_mod: bitwise operation to perform
389 * @byte_swap: byteswap operation to perform
390 * @mask: mask to be applied to data
391 * @mask_len: length in bytes of mask
392 * @src: data to be used for this operation
393 * @dst: data produced by this operation
394 * @src_len: length in bytes of data used for this operation
395 * @final: indicate final pass-through operation
396 *
397 * Variables required to be set when calling ccp_enqueue_cmd():
398 * - bit_mod, byte_swap, src, dst, src_len
399 * - mask, mask_len if bit_mod is not CCP_PASSTHRU_BITWISE_NOOP
400 */
401struct ccp_passthru_nomap_engine {
402 enum ccp_passthru_bitwise bit_mod;
403 enum ccp_passthru_byteswap byte_swap;
404
405 dma_addr_t mask;
406 u32 mask_len; /* In bytes */
407
408 dma_addr_t src_dma, dst_dma;
409 u64 src_len; /* In bytes */
410
411 u32 final;
412};
413
Tom Lendacky63b94502013-11-12 11:46:16 -0600414/***** ECC engine *****/
415#define CCP_ECC_MODULUS_BYTES 48 /* 384-bits */
416#define CCP_ECC_MAX_OPERANDS 6
417#define CCP_ECC_MAX_OUTPUTS 3
418
419/**
420 * ccp_ecc_function - type of ECC function
421 *
422 * @CCP_ECC_FUNCTION_MMUL_384BIT: 384-bit modular multiplication
423 * @CCP_ECC_FUNCTION_MADD_384BIT: 384-bit modular addition
424 * @CCP_ECC_FUNCTION_MINV_384BIT: 384-bit multiplicative inverse
425 * @CCP_ECC_FUNCTION_PADD_384BIT: 384-bit point addition
426 * @CCP_ECC_FUNCTION_PMUL_384BIT: 384-bit point multiplication
427 * @CCP_ECC_FUNCTION_PDBL_384BIT: 384-bit point doubling
428 */
429enum ccp_ecc_function {
430 CCP_ECC_FUNCTION_MMUL_384BIT = 0,
431 CCP_ECC_FUNCTION_MADD_384BIT,
432 CCP_ECC_FUNCTION_MINV_384BIT,
433 CCP_ECC_FUNCTION_PADD_384BIT,
434 CCP_ECC_FUNCTION_PMUL_384BIT,
435 CCP_ECC_FUNCTION_PDBL_384BIT,
436};
437
438/**
439 * struct ccp_ecc_modular_math - CCP ECC modular math parameters
440 * @operand_1: first operand for the modular math operation
441 * @operand_1_len: length of the first operand
442 * @operand_2: second operand for the modular math operation
443 * (not used for CCP_ECC_FUNCTION_MINV_384BIT)
444 * @operand_2_len: length of the second operand
445 * (not used for CCP_ECC_FUNCTION_MINV_384BIT)
446 * @result: result of the modular math operation
447 * @result_len: length of the supplied result buffer
448 */
449struct ccp_ecc_modular_math {
450 struct scatterlist *operand_1;
451 unsigned int operand_1_len; /* In bytes */
452
453 struct scatterlist *operand_2;
454 unsigned int operand_2_len; /* In bytes */
455
456 struct scatterlist *result;
457 unsigned int result_len; /* In bytes */
458};
459
460/**
461 * struct ccp_ecc_point - CCP ECC point definition
462 * @x: the x coordinate of the ECC point
463 * @x_len: the length of the x coordinate
464 * @y: the y coordinate of the ECC point
465 * @y_len: the length of the y coordinate
466 */
467struct ccp_ecc_point {
468 struct scatterlist *x;
469 unsigned int x_len; /* In bytes */
470
471 struct scatterlist *y;
472 unsigned int y_len; /* In bytes */
473};
474
475/**
476 * struct ccp_ecc_point_math - CCP ECC point math parameters
477 * @point_1: the first point of the ECC point math operation
478 * @point_2: the second point of the ECC point math operation
479 * (only used for CCP_ECC_FUNCTION_PADD_384BIT)
480 * @domain_a: the a parameter of the ECC curve
481 * @domain_a_len: the length of the a parameter
482 * @scalar: the scalar parameter for the point match operation
483 * (only used for CCP_ECC_FUNCTION_PMUL_384BIT)
484 * @scalar_len: the length of the scalar parameter
485 * (only used for CCP_ECC_FUNCTION_PMUL_384BIT)
486 * @result: the point resulting from the point math operation
487 */
488struct ccp_ecc_point_math {
489 struct ccp_ecc_point point_1;
490 struct ccp_ecc_point point_2;
491
492 struct scatterlist *domain_a;
493 unsigned int domain_a_len; /* In bytes */
494
495 struct scatterlist *scalar;
496 unsigned int scalar_len; /* In bytes */
497
498 struct ccp_ecc_point result;
499};
500
501/**
502 * struct ccp_ecc_engine - CCP ECC operation
503 * @function: ECC function to perform
504 * @mod: ECC modulus
505 * @mod_len: length in bytes of modulus
506 * @mm: module math parameters
507 * @pm: point math parameters
508 * @ecc_result: result of the ECC operation
509 *
510 * Variables required to be set when calling ccp_enqueue_cmd():
511 * - function, mod, mod_len
512 * - operand, operand_len, operand_count, output, output_len, output_count
513 * - ecc_result
514 */
515struct ccp_ecc_engine {
516 enum ccp_ecc_function function;
517
518 struct scatterlist *mod;
519 u32 mod_len; /* In bytes */
520
521 union {
522 struct ccp_ecc_modular_math mm;
523 struct ccp_ecc_point_math pm;
524 } u;
525
526 u16 ecc_result;
527};
528
529
530/**
531 * ccp_engine - CCP operation identifiers
532 *
533 * @CCP_ENGINE_AES: AES operation
534 * @CCP_ENGINE_XTS_AES: 128-bit XTS AES operation
535 * @CCP_ENGINE_RSVD1: unused
536 * @CCP_ENGINE_SHA: SHA operation
537 * @CCP_ENGINE_RSA: RSA operation
538 * @CCP_ENGINE_PASSTHRU: pass-through operation
539 * @CCP_ENGINE_ZLIB_DECOMPRESS: unused
540 * @CCP_ENGINE_ECC: ECC operation
541 */
542enum ccp_engine {
543 CCP_ENGINE_AES = 0,
544 CCP_ENGINE_XTS_AES_128,
545 CCP_ENGINE_RSVD1,
546 CCP_ENGINE_SHA,
547 CCP_ENGINE_RSA,
548 CCP_ENGINE_PASSTHRU,
549 CCP_ENGINE_ZLIB_DECOMPRESS,
550 CCP_ENGINE_ECC,
551 CCP_ENGINE__LAST,
552};
553
554/* Flag values for flags member of ccp_cmd */
Gary R Hook58ea8ab2016-04-18 09:21:44 -0500555#define CCP_CMD_MAY_BACKLOG 0x00000001
556#define CCP_CMD_PASSTHRU_NO_DMA_MAP 0x00000002
Tom Lendacky63b94502013-11-12 11:46:16 -0600557
558/**
559 * struct ccp_cmd - CPP operation request
560 * @entry: list element (ccp driver use only)
561 * @work: work element used for callbacks (ccp driver use only)
562 * @ccp: CCP device to be run on (ccp driver use only)
563 * @ret: operation return code (ccp driver use only)
564 * @flags: cmd processing flags
565 * @engine: CCP operation to perform
566 * @engine_error: CCP engine return code
567 * @u: engine specific structures, refer to specific engine struct below
568 * @callback: operation completion callback function
569 * @data: parameter value to be supplied to the callback function
570 *
571 * Variables required to be set when calling ccp_enqueue_cmd():
572 * - engine, callback
573 * - See the operation structures below for what is required for each
574 * operation.
575 */
576struct ccp_cmd {
577 /* The list_head, work_struct, ccp and ret variables are for use
578 * by the CCP driver only.
579 */
580 struct list_head entry;
581 struct work_struct work;
582 struct ccp_device *ccp;
583 int ret;
584
585 u32 flags;
586
587 enum ccp_engine engine;
588 u32 engine_error;
589
590 union {
591 struct ccp_aes_engine aes;
592 struct ccp_xts_aes_engine xts;
593 struct ccp_sha_engine sha;
594 struct ccp_rsa_engine rsa;
595 struct ccp_passthru_engine passthru;
Gary R Hook58ea8ab2016-04-18 09:21:44 -0500596 struct ccp_passthru_nomap_engine passthru_nomap;
Tom Lendacky63b94502013-11-12 11:46:16 -0600597 struct ccp_ecc_engine ecc;
598 } u;
599
600 /* Completion callback support */
601 void (*callback)(void *data, int err);
602 void *data;
603};
604
605#endif