1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Crypto acceleration support for Rockchip RK3288
4  *
5  * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd
6  *
7  * Author: Zain Wang <zain.wang@rock-chips.com>
8  *
9  * Some ideas are from marvell-cesa.c and s5p-sss.c driver.
10  */
11 #include <linux/device.h>
12 #include "rk3288_crypto.h"
13 
14 #define RK_CRYPTO_DEC			BIT(0)
15 
16 static void rk_crypto_complete(struct crypto_async_request *base, int err)
17 {
18 	if (base->complete)
19 		base->complete(base, err);
20 }
21 
22 static int rk_handle_req(struct rk_crypto_info *dev,
23 			 struct skcipher_request *req)
24 {
25 	if (!IS_ALIGNED(req->cryptlen, dev->align_size))
26 		return -EINVAL;
27 	else
28 		return dev->enqueue(dev, &req->base);
29 }
30 
31 static int rk_aes_setkey(struct crypto_skcipher *cipher,
32 			 const u8 *key, unsigned int keylen)
33 {
34 	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
35 	struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
36 
37 	if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 &&
38 	    keylen != AES_KEYSIZE_256)
39 		return -EINVAL;
40 	ctx->keylen = keylen;
41 	memcpy_toio(ctx->dev->reg + RK_CRYPTO_AES_KEY_0, key, keylen);
42 	return 0;
43 }
44 
45 static int rk_des_setkey(struct crypto_skcipher *cipher,
46 			 const u8 *key, unsigned int keylen)
47 {
48 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
49 	int err;
50 
51 	err = verify_skcipher_des_key(cipher, key);
52 	if (err)
53 		return err;
54 
55 	ctx->keylen = keylen;
56 	memcpy_toio(ctx->dev->reg + RK_CRYPTO_TDES_KEY1_0, key, keylen);
57 	return 0;
58 }
59 
60 static int rk_tdes_setkey(struct crypto_skcipher *cipher,
61 			  const u8 *key, unsigned int keylen)
62 {
63 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
64 	int err;
65 
66 	err = verify_skcipher_des3_key(cipher, key);
67 	if (err)
68 		return err;
69 
70 	ctx->keylen = keylen;
71 	memcpy_toio(ctx->dev->reg + RK_CRYPTO_TDES_KEY1_0, key, keylen);
72 	return 0;
73 }
74 
75 static int rk_aes_ecb_encrypt(struct skcipher_request *req)
76 {
77 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
78 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
79 	struct rk_crypto_info *dev = ctx->dev;
80 
81 	ctx->mode = RK_CRYPTO_AES_ECB_MODE;
82 	return rk_handle_req(dev, req);
83 }
84 
85 static int rk_aes_ecb_decrypt(struct skcipher_request *req)
86 {
87 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
88 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
89 	struct rk_crypto_info *dev = ctx->dev;
90 
91 	ctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC;
92 	return rk_handle_req(dev, req);
93 }
94 
95 static int rk_aes_cbc_encrypt(struct skcipher_request *req)
96 {
97 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
98 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
99 	struct rk_crypto_info *dev = ctx->dev;
100 
101 	ctx->mode = RK_CRYPTO_AES_CBC_MODE;
102 	return rk_handle_req(dev, req);
103 }
104 
105 static int rk_aes_cbc_decrypt(struct skcipher_request *req)
106 {
107 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
108 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
109 	struct rk_crypto_info *dev = ctx->dev;
110 
111 	ctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC;
112 	return rk_handle_req(dev, req);
113 }
114 
115 static int rk_des_ecb_encrypt(struct skcipher_request *req)
116 {
117 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
118 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
119 	struct rk_crypto_info *dev = ctx->dev;
120 
121 	ctx->mode = 0;
122 	return rk_handle_req(dev, req);
123 }
124 
125 static int rk_des_ecb_decrypt(struct skcipher_request *req)
126 {
127 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
128 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
129 	struct rk_crypto_info *dev = ctx->dev;
130 
131 	ctx->mode = RK_CRYPTO_DEC;
132 	return rk_handle_req(dev, req);
133 }
134 
135 static int rk_des_cbc_encrypt(struct skcipher_request *req)
136 {
137 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
138 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
139 	struct rk_crypto_info *dev = ctx->dev;
140 
141 	ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC;
142 	return rk_handle_req(dev, req);
143 }
144 
145 static int rk_des_cbc_decrypt(struct skcipher_request *req)
146 {
147 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
148 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
149 	struct rk_crypto_info *dev = ctx->dev;
150 
151 	ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC;
152 	return rk_handle_req(dev, req);
153 }
154 
155 static int rk_des3_ede_ecb_encrypt(struct skcipher_request *req)
156 {
157 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
158 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
159 	struct rk_crypto_info *dev = ctx->dev;
160 
161 	ctx->mode = RK_CRYPTO_TDES_SELECT;
162 	return rk_handle_req(dev, req);
163 }
164 
165 static int rk_des3_ede_ecb_decrypt(struct skcipher_request *req)
166 {
167 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
168 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
169 	struct rk_crypto_info *dev = ctx->dev;
170 
171 	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC;
172 	return rk_handle_req(dev, req);
173 }
174 
175 static int rk_des3_ede_cbc_encrypt(struct skcipher_request *req)
176 {
177 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
178 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
179 	struct rk_crypto_info *dev = ctx->dev;
180 
181 	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC;
182 	return rk_handle_req(dev, req);
183 }
184 
185 static int rk_des3_ede_cbc_decrypt(struct skcipher_request *req)
186 {
187 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
188 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
189 	struct rk_crypto_info *dev = ctx->dev;
190 
191 	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC |
192 		    RK_CRYPTO_DEC;
193 	return rk_handle_req(dev, req);
194 }
195 
196 static void rk_ablk_hw_init(struct rk_crypto_info *dev)
197 {
198 	struct skcipher_request *req =
199 		skcipher_request_cast(dev->async_req);
200 	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
201 	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
202 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
203 	u32 ivsize, block, conf_reg = 0;
204 
205 	block = crypto_tfm_alg_blocksize(tfm);
206 	ivsize = crypto_skcipher_ivsize(cipher);
207 
208 	if (block == DES_BLOCK_SIZE) {
209 		ctx->mode |= RK_CRYPTO_TDES_FIFO_MODE |
210 			     RK_CRYPTO_TDES_BYTESWAP_KEY |
211 			     RK_CRYPTO_TDES_BYTESWAP_IV;
212 		CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, ctx->mode);
213 		memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, req->iv, ivsize);
214 		conf_reg = RK_CRYPTO_DESSEL;
215 	} else {
216 		ctx->mode |= RK_CRYPTO_AES_FIFO_MODE |
217 			     RK_CRYPTO_AES_KEY_CHANGE |
218 			     RK_CRYPTO_AES_BYTESWAP_KEY |
219 			     RK_CRYPTO_AES_BYTESWAP_IV;
220 		if (ctx->keylen == AES_KEYSIZE_192)
221 			ctx->mode |= RK_CRYPTO_AES_192BIT_key;
222 		else if (ctx->keylen == AES_KEYSIZE_256)
223 			ctx->mode |= RK_CRYPTO_AES_256BIT_key;
224 		CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, ctx->mode);
225 		memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, req->iv, ivsize);
226 	}
227 	conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO |
228 		    RK_CRYPTO_BYTESWAP_BRFIFO;
229 	CRYPTO_WRITE(dev, RK_CRYPTO_CONF, conf_reg);
230 	CRYPTO_WRITE(dev, RK_CRYPTO_INTENA,
231 		     RK_CRYPTO_BCDMA_ERR_ENA | RK_CRYPTO_BCDMA_DONE_ENA);
232 }
233 
234 static void crypto_dma_start(struct rk_crypto_info *dev)
235 {
236 	CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAS, dev->addr_in);
237 	CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAL, dev->count / 4);
238 	CRYPTO_WRITE(dev, RK_CRYPTO_BTDMAS, dev->addr_out);
239 	CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_BLOCK_START |
240 		     _SBF(RK_CRYPTO_BLOCK_START, 16));
241 }
242 
243 static int rk_set_data_start(struct rk_crypto_info *dev)
244 {
245 	int err;
246 	struct skcipher_request *req =
247 		skcipher_request_cast(dev->async_req);
248 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
249 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
250 	u32 ivsize = crypto_skcipher_ivsize(tfm);
251 	u8 *src_last_blk = page_address(sg_page(dev->sg_src)) +
252 		dev->sg_src->offset + dev->sg_src->length - ivsize;
253 
254 	/* Store the iv that need to be updated in chain mode.
255 	 * And update the IV buffer to contain the next IV for decryption mode.
256 	 */
257 	if (ctx->mode & RK_CRYPTO_DEC) {
258 		memcpy(ctx->iv, src_last_blk, ivsize);
259 		sg_pcopy_to_buffer(dev->first, dev->src_nents, req->iv,
260 				   ivsize, dev->total - ivsize);
261 	}
262 
263 	err = dev->load_data(dev, dev->sg_src, dev->sg_dst);
264 	if (!err)
265 		crypto_dma_start(dev);
266 	return err;
267 }
268 
269 static int rk_ablk_start(struct rk_crypto_info *dev)
270 {
271 	struct skcipher_request *req =
272 		skcipher_request_cast(dev->async_req);
273 	unsigned long flags;
274 	int err = 0;
275 
276 	dev->left_bytes = req->cryptlen;
277 	dev->total = req->cryptlen;
278 	dev->sg_src = req->src;
279 	dev->first = req->src;
280 	dev->src_nents = sg_nents(req->src);
281 	dev->sg_dst = req->dst;
282 	dev->dst_nents = sg_nents(req->dst);
283 	dev->aligned = 1;
284 
285 	spin_lock_irqsave(&dev->lock, flags);
286 	rk_ablk_hw_init(dev);
287 	err = rk_set_data_start(dev);
288 	spin_unlock_irqrestore(&dev->lock, flags);
289 	return err;
290 }
291 
292 static void rk_iv_copyback(struct rk_crypto_info *dev)
293 {
294 	struct skcipher_request *req =
295 		skcipher_request_cast(dev->async_req);
296 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
297 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
298 	u32 ivsize = crypto_skcipher_ivsize(tfm);
299 
300 	/* Update the IV buffer to contain the next IV for encryption mode. */
301 	if (!(ctx->mode & RK_CRYPTO_DEC)) {
302 		if (dev->aligned) {
303 			memcpy(req->iv, sg_virt(dev->sg_dst) +
304 				dev->sg_dst->length - ivsize, ivsize);
305 		} else {
306 			memcpy(req->iv, dev->addr_vir +
307 				dev->count - ivsize, ivsize);
308 		}
309 	}
310 }
311 
312 static void rk_update_iv(struct rk_crypto_info *dev)
313 {
314 	struct skcipher_request *req =
315 		skcipher_request_cast(dev->async_req);
316 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
317 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
318 	u32 ivsize = crypto_skcipher_ivsize(tfm);
319 	u8 *new_iv = NULL;
320 
321 	if (ctx->mode & RK_CRYPTO_DEC) {
322 		new_iv = ctx->iv;
323 	} else {
324 		new_iv = page_address(sg_page(dev->sg_dst)) +
325 			 dev->sg_dst->offset + dev->sg_dst->length - ivsize;
326 	}
327 
328 	if (ivsize == DES_BLOCK_SIZE)
329 		memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, new_iv, ivsize);
330 	else if (ivsize == AES_BLOCK_SIZE)
331 		memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, new_iv, ivsize);
332 }
333 
334 /* return:
335  *	true	some err was occurred
336  *	fault	no err, continue
337  */
338 static int rk_ablk_rx(struct rk_crypto_info *dev)
339 {
340 	int err = 0;
341 	struct skcipher_request *req =
342 		skcipher_request_cast(dev->async_req);
343 
344 	dev->unload_data(dev);
345 	if (!dev->aligned) {
346 		if (!sg_pcopy_from_buffer(req->dst, dev->dst_nents,
347 					  dev->addr_vir, dev->count,
348 					  dev->total - dev->left_bytes -
349 					  dev->count)) {
350 			err = -EINVAL;
351 			goto out_rx;
352 		}
353 	}
354 	if (dev->left_bytes) {
355 		rk_update_iv(dev);
356 		if (dev->aligned) {
357 			if (sg_is_last(dev->sg_src)) {
358 				dev_err(dev->dev, "[%s:%d] Lack of data\n",
359 					__func__, __LINE__);
360 				err = -ENOMEM;
361 				goto out_rx;
362 			}
363 			dev->sg_src = sg_next(dev->sg_src);
364 			dev->sg_dst = sg_next(dev->sg_dst);
365 		}
366 		err = rk_set_data_start(dev);
367 	} else {
368 		rk_iv_copyback(dev);
369 		/* here show the calculation is over without any err */
370 		dev->complete(dev->async_req, 0);
371 		tasklet_schedule(&dev->queue_task);
372 	}
373 out_rx:
374 	return err;
375 }
376 
377 static int rk_ablk_init_tfm(struct crypto_skcipher *tfm)
378 {
379 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
380 	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
381 	struct rk_crypto_tmp *algt;
382 
383 	algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
384 
385 	ctx->dev = algt->dev;
386 	ctx->dev->align_size = crypto_tfm_alg_alignmask(crypto_skcipher_tfm(tfm)) + 1;
387 	ctx->dev->start = rk_ablk_start;
388 	ctx->dev->update = rk_ablk_rx;
389 	ctx->dev->complete = rk_crypto_complete;
390 	ctx->dev->addr_vir = (char *)__get_free_page(GFP_KERNEL);
391 
392 	return ctx->dev->addr_vir ? ctx->dev->enable_clk(ctx->dev) : -ENOMEM;
393 }
394 
395 static void rk_ablk_exit_tfm(struct crypto_skcipher *tfm)
396 {
397 	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
398 
399 	free_page((unsigned long)ctx->dev->addr_vir);
400 	ctx->dev->disable_clk(ctx->dev);
401 }
402 
403 struct rk_crypto_tmp rk_ecb_aes_alg = {
404 	.type = ALG_TYPE_CIPHER,
405 	.alg.skcipher = {
406 		.base.cra_name		= "ecb(aes)",
407 		.base.cra_driver_name	= "ecb-aes-rk",
408 		.base.cra_priority	= 300,
409 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
410 		.base.cra_blocksize	= AES_BLOCK_SIZE,
411 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
412 		.base.cra_alignmask	= 0x0f,
413 		.base.cra_module	= THIS_MODULE,
414 
415 		.init			= rk_ablk_init_tfm,
416 		.exit			= rk_ablk_exit_tfm,
417 		.min_keysize		= AES_MIN_KEY_SIZE,
418 		.max_keysize		= AES_MAX_KEY_SIZE,
419 		.setkey			= rk_aes_setkey,
420 		.encrypt		= rk_aes_ecb_encrypt,
421 		.decrypt		= rk_aes_ecb_decrypt,
422 	}
423 };
424 
425 struct rk_crypto_tmp rk_cbc_aes_alg = {
426 	.type = ALG_TYPE_CIPHER,
427 	.alg.skcipher = {
428 		.base.cra_name		= "cbc(aes)",
429 		.base.cra_driver_name	= "cbc-aes-rk",
430 		.base.cra_priority	= 300,
431 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
432 		.base.cra_blocksize	= AES_BLOCK_SIZE,
433 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
434 		.base.cra_alignmask	= 0x0f,
435 		.base.cra_module	= THIS_MODULE,
436 
437 		.init			= rk_ablk_init_tfm,
438 		.exit			= rk_ablk_exit_tfm,
439 		.min_keysize		= AES_MIN_KEY_SIZE,
440 		.max_keysize		= AES_MAX_KEY_SIZE,
441 		.ivsize			= AES_BLOCK_SIZE,
442 		.setkey			= rk_aes_setkey,
443 		.encrypt		= rk_aes_cbc_encrypt,
444 		.decrypt		= rk_aes_cbc_decrypt,
445 	}
446 };
447 
448 struct rk_crypto_tmp rk_ecb_des_alg = {
449 	.type = ALG_TYPE_CIPHER,
450 	.alg.skcipher = {
451 		.base.cra_name		= "ecb(des)",
452 		.base.cra_driver_name	= "ecb-des-rk",
453 		.base.cra_priority	= 300,
454 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
455 		.base.cra_blocksize	= DES_BLOCK_SIZE,
456 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
457 		.base.cra_alignmask	= 0x07,
458 		.base.cra_module	= THIS_MODULE,
459 
460 		.init			= rk_ablk_init_tfm,
461 		.exit			= rk_ablk_exit_tfm,
462 		.min_keysize		= DES_KEY_SIZE,
463 		.max_keysize		= DES_KEY_SIZE,
464 		.setkey			= rk_des_setkey,
465 		.encrypt		= rk_des_ecb_encrypt,
466 		.decrypt		= rk_des_ecb_decrypt,
467 	}
468 };
469 
470 struct rk_crypto_tmp rk_cbc_des_alg = {
471 	.type = ALG_TYPE_CIPHER,
472 	.alg.skcipher = {
473 		.base.cra_name		= "cbc(des)",
474 		.base.cra_driver_name	= "cbc-des-rk",
475 		.base.cra_priority	= 300,
476 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
477 		.base.cra_blocksize	= DES_BLOCK_SIZE,
478 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
479 		.base.cra_alignmask	= 0x07,
480 		.base.cra_module	= THIS_MODULE,
481 
482 		.init			= rk_ablk_init_tfm,
483 		.exit			= rk_ablk_exit_tfm,
484 		.min_keysize		= DES_KEY_SIZE,
485 		.max_keysize		= DES_KEY_SIZE,
486 		.ivsize			= DES_BLOCK_SIZE,
487 		.setkey			= rk_des_setkey,
488 		.encrypt		= rk_des_cbc_encrypt,
489 		.decrypt		= rk_des_cbc_decrypt,
490 	}
491 };
492 
493 struct rk_crypto_tmp rk_ecb_des3_ede_alg = {
494 	.type = ALG_TYPE_CIPHER,
495 	.alg.skcipher = {
496 		.base.cra_name		= "ecb(des3_ede)",
497 		.base.cra_driver_name	= "ecb-des3-ede-rk",
498 		.base.cra_priority	= 300,
499 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
500 		.base.cra_blocksize	= DES_BLOCK_SIZE,
501 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
502 		.base.cra_alignmask	= 0x07,
503 		.base.cra_module	= THIS_MODULE,
504 
505 		.init			= rk_ablk_init_tfm,
506 		.exit			= rk_ablk_exit_tfm,
507 		.min_keysize		= DES3_EDE_KEY_SIZE,
508 		.max_keysize		= DES3_EDE_KEY_SIZE,
509 		.ivsize			= DES_BLOCK_SIZE,
510 		.setkey			= rk_tdes_setkey,
511 		.encrypt		= rk_des3_ede_ecb_encrypt,
512 		.decrypt		= rk_des3_ede_ecb_decrypt,
513 	}
514 };
515 
516 struct rk_crypto_tmp rk_cbc_des3_ede_alg = {
517 	.type = ALG_TYPE_CIPHER,
518 	.alg.skcipher = {
519 		.base.cra_name		= "cbc(des3_ede)",
520 		.base.cra_driver_name	= "cbc-des3-ede-rk",
521 		.base.cra_priority	= 300,
522 		.base.cra_flags		= CRYPTO_ALG_ASYNC,
523 		.base.cra_blocksize	= DES_BLOCK_SIZE,
524 		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
525 		.base.cra_alignmask	= 0x07,
526 		.base.cra_module	= THIS_MODULE,
527 
528 		.init			= rk_ablk_init_tfm,
529 		.exit			= rk_ablk_exit_tfm,
530 		.min_keysize		= DES3_EDE_KEY_SIZE,
531 		.max_keysize		= DES3_EDE_KEY_SIZE,
532 		.ivsize			= DES_BLOCK_SIZE,
533 		.setkey			= rk_tdes_setkey,
534 		.encrypt		= rk_des3_ede_cbc_encrypt,
535 		.decrypt		= rk_des3_ede_cbc_decrypt,
536 	}
537 };
538