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324429d7 HS |
1 | /* |
2 | * This file is part of the Chelsio T6 Crypto driver for Linux. | |
3 | * | |
4 | * Copyright (c) 2003-2016 Chelsio Communications, Inc. All rights reserved. | |
5 | * | |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | * | |
34 | * Written and Maintained by: | |
35 | * Manoj Malviya (manojmalviya@chelsio.com) | |
36 | * Atul Gupta (atul.gupta@chelsio.com) | |
37 | * Jitendra Lulla (jlulla@chelsio.com) | |
38 | * Yeshaswi M R Gowda (yeshaswi@chelsio.com) | |
39 | * Harsh Jain (harsh@chelsio.com) | |
40 | */ | |
41 | ||
42 | #define pr_fmt(fmt) "chcr:" fmt | |
43 | ||
44 | #include <linux/kernel.h> | |
45 | #include <linux/module.h> | |
46 | #include <linux/crypto.h> | |
47 | #include <linux/cryptohash.h> | |
48 | #include <linux/skbuff.h> | |
49 | #include <linux/rtnetlink.h> | |
50 | #include <linux/highmem.h> | |
51 | #include <linux/scatterlist.h> | |
52 | ||
53 | #include <crypto/aes.h> | |
54 | #include <crypto/algapi.h> | |
55 | #include <crypto/hash.h> | |
8f6acb7f | 56 | #include <crypto/gcm.h> |
324429d7 | 57 | #include <crypto/sha.h> |
2debd332 | 58 | #include <crypto/authenc.h> |
b8fd1f41 HJ |
59 | #include <crypto/ctr.h> |
60 | #include <crypto/gf128mul.h> | |
2debd332 HJ |
61 | #include <crypto/internal/aead.h> |
62 | #include <crypto/null.h> | |
63 | #include <crypto/internal/skcipher.h> | |
64 | #include <crypto/aead.h> | |
65 | #include <crypto/scatterwalk.h> | |
324429d7 HS |
66 | #include <crypto/internal/hash.h> |
67 | ||
68 | #include "t4fw_api.h" | |
69 | #include "t4_msg.h" | |
70 | #include "chcr_core.h" | |
71 | #include "chcr_algo.h" | |
72 | #include "chcr_crypto.h" | |
73 | ||
2f47d580 HJ |
74 | #define IV AES_BLOCK_SIZE |
75 | ||
8579e076 CIK |
76 | static unsigned int sgl_ent_len[] = { |
77 | 0, 0, 16, 24, 40, 48, 64, 72, 88, | |
78 | 96, 112, 120, 136, 144, 160, 168, 184, | |
79 | 192, 208, 216, 232, 240, 256, 264, 280, | |
80 | 288, 304, 312, 328, 336, 352, 360, 376 | |
81 | }; | |
6dad4e8a | 82 | |
8579e076 CIK |
83 | static unsigned int dsgl_ent_len[] = { |
84 | 0, 32, 32, 48, 48, 64, 64, 80, 80, | |
85 | 112, 112, 128, 128, 144, 144, 160, 160, | |
86 | 192, 192, 208, 208, 224, 224, 240, 240, | |
87 | 272, 272, 288, 288, 304, 304, 320, 320 | |
88 | }; | |
6dad4e8a AG |
89 | |
90 | static u32 round_constant[11] = { | |
91 | 0x01000000, 0x02000000, 0x04000000, 0x08000000, | |
92 | 0x10000000, 0x20000000, 0x40000000, 0x80000000, | |
93 | 0x1B000000, 0x36000000, 0x6C000000 | |
94 | }; | |
95 | ||
7cea6d3e | 96 | static int chcr_handle_cipher_resp(struct skcipher_request *req, |
6dad4e8a AG |
97 | unsigned char *input, int err); |
98 | ||
2debd332 HJ |
99 | static inline struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx) |
100 | { | |
101 | return ctx->crypto_ctx->aeadctx; | |
102 | } | |
103 | ||
324429d7 HS |
104 | static inline struct ablk_ctx *ABLK_CTX(struct chcr_context *ctx) |
105 | { | |
106 | return ctx->crypto_ctx->ablkctx; | |
107 | } | |
108 | ||
109 | static inline struct hmac_ctx *HMAC_CTX(struct chcr_context *ctx) | |
110 | { | |
111 | return ctx->crypto_ctx->hmacctx; | |
112 | } | |
113 | ||
2debd332 HJ |
114 | static inline struct chcr_gcm_ctx *GCM_CTX(struct chcr_aead_ctx *gctx) |
115 | { | |
116 | return gctx->ctx->gcm; | |
117 | } | |
118 | ||
119 | static inline struct chcr_authenc_ctx *AUTHENC_CTX(struct chcr_aead_ctx *gctx) | |
120 | { | |
121 | return gctx->ctx->authenc; | |
122 | } | |
123 | ||
324429d7 HS |
124 | static inline struct uld_ctx *ULD_CTX(struct chcr_context *ctx) |
125 | { | |
fef4912b | 126 | return container_of(ctx->dev, struct uld_ctx, dev); |
324429d7 HS |
127 | } |
128 | ||
129 | static inline int is_ofld_imm(const struct sk_buff *skb) | |
130 | { | |
2f47d580 | 131 | return (skb->len <= SGE_MAX_WR_LEN); |
324429d7 HS |
132 | } |
133 | ||
5110e655 HJ |
134 | static inline void chcr_init_hctx_per_wr(struct chcr_ahash_req_ctx *reqctx) |
135 | { | |
136 | memset(&reqctx->hctx_wr, 0, sizeof(struct chcr_hctx_per_wr)); | |
137 | } | |
138 | ||
2f47d580 HJ |
139 | static int sg_nents_xlen(struct scatterlist *sg, unsigned int reqlen, |
140 | unsigned int entlen, | |
141 | unsigned int skip) | |
2956f36c HJ |
142 | { |
143 | int nents = 0; | |
144 | unsigned int less; | |
2f47d580 | 145 | unsigned int skip_len = 0; |
2956f36c | 146 | |
2f47d580 HJ |
147 | while (sg && skip) { |
148 | if (sg_dma_len(sg) <= skip) { | |
149 | skip -= sg_dma_len(sg); | |
150 | skip_len = 0; | |
151 | sg = sg_next(sg); | |
152 | } else { | |
153 | skip_len = skip; | |
154 | skip = 0; | |
155 | } | |
2956f36c HJ |
156 | } |
157 | ||
2f47d580 HJ |
158 | while (sg && reqlen) { |
159 | less = min(reqlen, sg_dma_len(sg) - skip_len); | |
160 | nents += DIV_ROUND_UP(less, entlen); | |
161 | reqlen -= less; | |
162 | skip_len = 0; | |
163 | sg = sg_next(sg); | |
164 | } | |
2956f36c HJ |
165 | return nents; |
166 | } | |
167 | ||
6dad4e8a | 168 | static inline int get_aead_subtype(struct crypto_aead *aead) |
2f47d580 | 169 | { |
6dad4e8a AG |
170 | struct aead_alg *alg = crypto_aead_alg(aead); |
171 | struct chcr_alg_template *chcr_crypto_alg = | |
172 | container_of(alg, struct chcr_alg_template, alg.aead); | |
173 | return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK; | |
2f47d580 | 174 | } |
2f47d580 | 175 | |
6dad4e8a | 176 | void chcr_verify_tag(struct aead_request *req, u8 *input, int *err) |
2debd332 HJ |
177 | { |
178 | u8 temp[SHA512_DIGEST_SIZE]; | |
179 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
180 | int authsize = crypto_aead_authsize(tfm); | |
181 | struct cpl_fw6_pld *fw6_pld; | |
182 | int cmp = 0; | |
183 | ||
184 | fw6_pld = (struct cpl_fw6_pld *)input; | |
185 | if ((get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) || | |
186 | (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_GCM)) { | |
d600fc8a | 187 | cmp = crypto_memneq(&fw6_pld->data[2], (fw6_pld + 1), authsize); |
2debd332 HJ |
188 | } else { |
189 | ||
190 | sg_pcopy_to_buffer(req->src, sg_nents(req->src), temp, | |
191 | authsize, req->assoclen + | |
192 | req->cryptlen - authsize); | |
d600fc8a | 193 | cmp = crypto_memneq(temp, (fw6_pld + 1), authsize); |
2debd332 HJ |
194 | } |
195 | if (cmp) | |
196 | *err = -EBADMSG; | |
197 | else | |
198 | *err = 0; | |
199 | } | |
200 | ||
fef4912b HJ |
201 | static int chcr_inc_wrcount(struct chcr_dev *dev) |
202 | { | |
fef4912b | 203 | if (dev->state == CHCR_DETACH) |
33ddc108 AG |
204 | return 1; |
205 | atomic_inc(&dev->inflight); | |
206 | return 0; | |
fef4912b HJ |
207 | } |
208 | ||
209 | static inline void chcr_dec_wrcount(struct chcr_dev *dev) | |
210 | { | |
211 | atomic_dec(&dev->inflight); | |
212 | } | |
213 | ||
f31ba0f9 | 214 | static inline int chcr_handle_aead_resp(struct aead_request *req, |
6dad4e8a AG |
215 | unsigned char *input, |
216 | int err) | |
217 | { | |
218 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
fef4912b HJ |
219 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); |
220 | struct chcr_dev *dev = a_ctx(tfm)->dev; | |
6dad4e8a | 221 | |
4262c98a | 222 | chcr_aead_common_exit(req); |
6dad4e8a AG |
223 | if (reqctx->verify == VERIFY_SW) { |
224 | chcr_verify_tag(req, input, &err); | |
225 | reqctx->verify = VERIFY_HW; | |
226 | } | |
fef4912b | 227 | chcr_dec_wrcount(dev); |
6dad4e8a | 228 | req->base.complete(&req->base, err); |
f31ba0f9 HJ |
229 | |
230 | return err; | |
6dad4e8a AG |
231 | } |
232 | ||
2f47d580 | 233 | static void get_aes_decrypt_key(unsigned char *dec_key, |
39f91a34 HJ |
234 | const unsigned char *key, |
235 | unsigned int keylength) | |
236 | { | |
237 | u32 temp; | |
238 | u32 w_ring[MAX_NK]; | |
239 | int i, j, k; | |
240 | u8 nr, nk; | |
241 | ||
242 | switch (keylength) { | |
243 | case AES_KEYLENGTH_128BIT: | |
244 | nk = KEYLENGTH_4BYTES; | |
245 | nr = NUMBER_OF_ROUNDS_10; | |
246 | break; | |
247 | case AES_KEYLENGTH_192BIT: | |
248 | nk = KEYLENGTH_6BYTES; | |
249 | nr = NUMBER_OF_ROUNDS_12; | |
250 | break; | |
251 | case AES_KEYLENGTH_256BIT: | |
252 | nk = KEYLENGTH_8BYTES; | |
253 | nr = NUMBER_OF_ROUNDS_14; | |
254 | break; | |
255 | default: | |
256 | return; | |
257 | } | |
258 | for (i = 0; i < nk; i++) | |
259 | w_ring[i] = be32_to_cpu(*(u32 *)&key[4 * i]); | |
260 | ||
261 | i = 0; | |
262 | temp = w_ring[nk - 1]; | |
263 | while (i + nk < (nr + 1) * 4) { | |
264 | if (!(i % nk)) { | |
265 | /* RotWord(temp) */ | |
266 | temp = (temp << 8) | (temp >> 24); | |
267 | temp = aes_ks_subword(temp); | |
268 | temp ^= round_constant[i / nk]; | |
269 | } else if (nk == 8 && (i % 4 == 0)) { | |
270 | temp = aes_ks_subword(temp); | |
271 | } | |
272 | w_ring[i % nk] ^= temp; | |
273 | temp = w_ring[i % nk]; | |
274 | i++; | |
275 | } | |
276 | i--; | |
277 | for (k = 0, j = i % nk; k < nk; k++) { | |
278 | *((u32 *)dec_key + k) = htonl(w_ring[j]); | |
279 | j--; | |
280 | if (j < 0) | |
281 | j += nk; | |
282 | } | |
283 | } | |
284 | ||
e7922729 | 285 | static struct crypto_shash *chcr_alloc_shash(unsigned int ds) |
324429d7 | 286 | { |
ec1bca94 | 287 | struct crypto_shash *base_hash = ERR_PTR(-EINVAL); |
324429d7 HS |
288 | |
289 | switch (ds) { | |
290 | case SHA1_DIGEST_SIZE: | |
e7922729 | 291 | base_hash = crypto_alloc_shash("sha1", 0, 0); |
324429d7 HS |
292 | break; |
293 | case SHA224_DIGEST_SIZE: | |
e7922729 | 294 | base_hash = crypto_alloc_shash("sha224", 0, 0); |
324429d7 HS |
295 | break; |
296 | case SHA256_DIGEST_SIZE: | |
e7922729 | 297 | base_hash = crypto_alloc_shash("sha256", 0, 0); |
324429d7 HS |
298 | break; |
299 | case SHA384_DIGEST_SIZE: | |
e7922729 | 300 | base_hash = crypto_alloc_shash("sha384", 0, 0); |
324429d7 HS |
301 | break; |
302 | case SHA512_DIGEST_SIZE: | |
e7922729 | 303 | base_hash = crypto_alloc_shash("sha512", 0, 0); |
324429d7 HS |
304 | break; |
305 | } | |
324429d7 | 306 | |
e7922729 | 307 | return base_hash; |
324429d7 HS |
308 | } |
309 | ||
310 | static int chcr_compute_partial_hash(struct shash_desc *desc, | |
311 | char *iopad, char *result_hash, | |
312 | int digest_size) | |
313 | { | |
314 | struct sha1_state sha1_st; | |
315 | struct sha256_state sha256_st; | |
316 | struct sha512_state sha512_st; | |
317 | int error; | |
318 | ||
319 | if (digest_size == SHA1_DIGEST_SIZE) { | |
320 | error = crypto_shash_init(desc) ?: | |
321 | crypto_shash_update(desc, iopad, SHA1_BLOCK_SIZE) ?: | |
322 | crypto_shash_export(desc, (void *)&sha1_st); | |
323 | memcpy(result_hash, sha1_st.state, SHA1_DIGEST_SIZE); | |
324 | } else if (digest_size == SHA224_DIGEST_SIZE) { | |
325 | error = crypto_shash_init(desc) ?: | |
326 | crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?: | |
327 | crypto_shash_export(desc, (void *)&sha256_st); | |
328 | memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE); | |
329 | ||
330 | } else if (digest_size == SHA256_DIGEST_SIZE) { | |
331 | error = crypto_shash_init(desc) ?: | |
332 | crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?: | |
333 | crypto_shash_export(desc, (void *)&sha256_st); | |
334 | memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE); | |
335 | ||
336 | } else if (digest_size == SHA384_DIGEST_SIZE) { | |
337 | error = crypto_shash_init(desc) ?: | |
338 | crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?: | |
339 | crypto_shash_export(desc, (void *)&sha512_st); | |
340 | memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE); | |
341 | ||
342 | } else if (digest_size == SHA512_DIGEST_SIZE) { | |
343 | error = crypto_shash_init(desc) ?: | |
344 | crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?: | |
345 | crypto_shash_export(desc, (void *)&sha512_st); | |
346 | memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE); | |
347 | } else { | |
348 | error = -EINVAL; | |
349 | pr_err("Unknown digest size %d\n", digest_size); | |
350 | } | |
351 | return error; | |
352 | } | |
353 | ||
354 | static void chcr_change_order(char *buf, int ds) | |
355 | { | |
356 | int i; | |
357 | ||
358 | if (ds == SHA512_DIGEST_SIZE) { | |
359 | for (i = 0; i < (ds / sizeof(u64)); i++) | |
360 | *((__be64 *)buf + i) = | |
361 | cpu_to_be64(*((u64 *)buf + i)); | |
362 | } else { | |
363 | for (i = 0; i < (ds / sizeof(u32)); i++) | |
364 | *((__be32 *)buf + i) = | |
365 | cpu_to_be32(*((u32 *)buf + i)); | |
366 | } | |
367 | } | |
368 | ||
369 | static inline int is_hmac(struct crypto_tfm *tfm) | |
370 | { | |
371 | struct crypto_alg *alg = tfm->__crt_alg; | |
372 | struct chcr_alg_template *chcr_crypto_alg = | |
373 | container_of(__crypto_ahash_alg(alg), struct chcr_alg_template, | |
374 | alg.hash); | |
5c86a8ff | 375 | if (chcr_crypto_alg->type == CRYPTO_ALG_TYPE_HMAC) |
324429d7 HS |
376 | return 1; |
377 | return 0; | |
378 | } | |
379 | ||
2f47d580 HJ |
380 | static inline void dsgl_walk_init(struct dsgl_walk *walk, |
381 | struct cpl_rx_phys_dsgl *dsgl) | |
324429d7 | 382 | { |
2f47d580 HJ |
383 | walk->dsgl = dsgl; |
384 | walk->nents = 0; | |
385 | walk->to = (struct phys_sge_pairs *)(dsgl + 1); | |
386 | } | |
387 | ||
add92a81 HJ |
388 | static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid, |
389 | int pci_chan_id) | |
2f47d580 HJ |
390 | { |
391 | struct cpl_rx_phys_dsgl *phys_cpl; | |
392 | ||
393 | phys_cpl = walk->dsgl; | |
324429d7 HS |
394 | |
395 | phys_cpl->op_to_tid = htonl(CPL_RX_PHYS_DSGL_OPCODE_V(CPL_RX_PHYS_DSGL) | |
396 | | CPL_RX_PHYS_DSGL_ISRDMA_V(0)); | |
2f47d580 HJ |
397 | phys_cpl->pcirlxorder_to_noofsgentr = |
398 | htonl(CPL_RX_PHYS_DSGL_PCIRLXORDER_V(0) | | |
399 | CPL_RX_PHYS_DSGL_PCINOSNOOP_V(0) | | |
400 | CPL_RX_PHYS_DSGL_PCITPHNTENB_V(0) | | |
401 | CPL_RX_PHYS_DSGL_PCITPHNT_V(0) | | |
402 | CPL_RX_PHYS_DSGL_DCAID_V(0) | | |
403 | CPL_RX_PHYS_DSGL_NOOFSGENTR_V(walk->nents)); | |
404 | phys_cpl->rss_hdr_int.opcode = CPL_RX_PHYS_ADDR; | |
405 | phys_cpl->rss_hdr_int.qid = htons(qid); | |
406 | phys_cpl->rss_hdr_int.hash_val = 0; | |
add92a81 | 407 | phys_cpl->rss_hdr_int.channel = pci_chan_id; |
2f47d580 HJ |
408 | } |
409 | ||
410 | static inline void dsgl_walk_add_page(struct dsgl_walk *walk, | |
411 | size_t size, | |
c4f6d44d | 412 | dma_addr_t addr) |
2f47d580 HJ |
413 | { |
414 | int j; | |
415 | ||
416 | if (!size) | |
417 | return; | |
418 | j = walk->nents; | |
419 | walk->to->len[j % 8] = htons(size); | |
c4f6d44d | 420 | walk->to->addr[j % 8] = cpu_to_be64(addr); |
2f47d580 HJ |
421 | j++; |
422 | if ((j % 8) == 0) | |
423 | walk->to++; | |
424 | walk->nents = j; | |
425 | } | |
426 | ||
427 | static void dsgl_walk_add_sg(struct dsgl_walk *walk, | |
428 | struct scatterlist *sg, | |
429 | unsigned int slen, | |
430 | unsigned int skip) | |
431 | { | |
432 | int skip_len = 0; | |
433 | unsigned int left_size = slen, len = 0; | |
434 | unsigned int j = walk->nents; | |
435 | int offset, ent_len; | |
436 | ||
437 | if (!slen) | |
438 | return; | |
439 | while (sg && skip) { | |
440 | if (sg_dma_len(sg) <= skip) { | |
441 | skip -= sg_dma_len(sg); | |
442 | skip_len = 0; | |
443 | sg = sg_next(sg); | |
444 | } else { | |
445 | skip_len = skip; | |
446 | skip = 0; | |
447 | } | |
448 | } | |
449 | ||
2956f36c | 450 | while (left_size && sg) { |
2f47d580 | 451 | len = min_t(u32, left_size, sg_dma_len(sg) - skip_len); |
2956f36c HJ |
452 | offset = 0; |
453 | while (len) { | |
2f47d580 HJ |
454 | ent_len = min_t(u32, len, CHCR_DST_SG_SIZE); |
455 | walk->to->len[j % 8] = htons(ent_len); | |
456 | walk->to->addr[j % 8] = cpu_to_be64(sg_dma_address(sg) + | |
457 | offset + skip_len); | |
2956f36c HJ |
458 | offset += ent_len; |
459 | len -= ent_len; | |
460 | j++; | |
461 | if ((j % 8) == 0) | |
2f47d580 | 462 | walk->to++; |
2956f36c | 463 | } |
2f47d580 HJ |
464 | walk->last_sg = sg; |
465 | walk->last_sg_len = min_t(u32, left_size, sg_dma_len(sg) - | |
466 | skip_len) + skip_len; | |
467 | left_size -= min_t(u32, left_size, sg_dma_len(sg) - skip_len); | |
468 | skip_len = 0; | |
2956f36c HJ |
469 | sg = sg_next(sg); |
470 | } | |
2f47d580 HJ |
471 | walk->nents = j; |
472 | } | |
473 | ||
474 | static inline void ulptx_walk_init(struct ulptx_walk *walk, | |
475 | struct ulptx_sgl *ulp) | |
476 | { | |
477 | walk->sgl = ulp; | |
478 | walk->nents = 0; | |
479 | walk->pair_idx = 0; | |
480 | walk->pair = ulp->sge; | |
481 | walk->last_sg = NULL; | |
482 | walk->last_sg_len = 0; | |
483 | } | |
484 | ||
485 | static inline void ulptx_walk_end(struct ulptx_walk *walk) | |
486 | { | |
487 | walk->sgl->cmd_nsge = htonl(ULPTX_CMD_V(ULP_TX_SC_DSGL) | | |
488 | ULPTX_NSGE_V(walk->nents)); | |
489 | } | |
2956f36c | 490 | |
2f47d580 HJ |
491 | |
492 | static inline void ulptx_walk_add_page(struct ulptx_walk *walk, | |
493 | size_t size, | |
c4f6d44d | 494 | dma_addr_t addr) |
2f47d580 HJ |
495 | { |
496 | if (!size) | |
497 | return; | |
498 | ||
499 | if (walk->nents == 0) { | |
500 | walk->sgl->len0 = cpu_to_be32(size); | |
c4f6d44d | 501 | walk->sgl->addr0 = cpu_to_be64(addr); |
2f47d580 | 502 | } else { |
c4f6d44d | 503 | walk->pair->addr[walk->pair_idx] = cpu_to_be64(addr); |
2f47d580 HJ |
504 | walk->pair->len[walk->pair_idx] = cpu_to_be32(size); |
505 | walk->pair_idx = !walk->pair_idx; | |
506 | if (!walk->pair_idx) | |
507 | walk->pair++; | |
508 | } | |
509 | walk->nents++; | |
324429d7 HS |
510 | } |
511 | ||
2f47d580 | 512 | static void ulptx_walk_add_sg(struct ulptx_walk *walk, |
adf1ca61 | 513 | struct scatterlist *sg, |
2f47d580 HJ |
514 | unsigned int len, |
515 | unsigned int skip) | |
324429d7 | 516 | { |
2f47d580 HJ |
517 | int small; |
518 | int skip_len = 0; | |
519 | unsigned int sgmin; | |
324429d7 | 520 | |
2f47d580 HJ |
521 | if (!len) |
522 | return; | |
2f47d580 HJ |
523 | while (sg && skip) { |
524 | if (sg_dma_len(sg) <= skip) { | |
525 | skip -= sg_dma_len(sg); | |
526 | skip_len = 0; | |
527 | sg = sg_next(sg); | |
528 | } else { | |
529 | skip_len = skip; | |
530 | skip = 0; | |
531 | } | |
532 | } | |
8daa32b9 HJ |
533 | WARN(!sg, "SG should not be null here\n"); |
534 | if (sg && (walk->nents == 0)) { | |
2f47d580 HJ |
535 | small = min_t(unsigned int, sg_dma_len(sg) - skip_len, len); |
536 | sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE); | |
537 | walk->sgl->len0 = cpu_to_be32(sgmin); | |
538 | walk->sgl->addr0 = cpu_to_be64(sg_dma_address(sg) + skip_len); | |
539 | walk->nents++; | |
540 | len -= sgmin; | |
541 | walk->last_sg = sg; | |
542 | walk->last_sg_len = sgmin + skip_len; | |
543 | skip_len += sgmin; | |
544 | if (sg_dma_len(sg) == skip_len) { | |
545 | sg = sg_next(sg); | |
546 | skip_len = 0; | |
547 | } | |
548 | } | |
549 | ||
550 | while (sg && len) { | |
551 | small = min(sg_dma_len(sg) - skip_len, len); | |
552 | sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE); | |
553 | walk->pair->len[walk->pair_idx] = cpu_to_be32(sgmin); | |
554 | walk->pair->addr[walk->pair_idx] = | |
555 | cpu_to_be64(sg_dma_address(sg) + skip_len); | |
556 | walk->pair_idx = !walk->pair_idx; | |
557 | walk->nents++; | |
558 | if (!walk->pair_idx) | |
559 | walk->pair++; | |
560 | len -= sgmin; | |
561 | skip_len += sgmin; | |
562 | walk->last_sg = sg; | |
563 | walk->last_sg_len = skip_len; | |
564 | if (sg_dma_len(sg) == skip_len) { | |
565 | sg = sg_next(sg); | |
566 | skip_len = 0; | |
567 | } | |
324429d7 | 568 | } |
324429d7 HS |
569 | } |
570 | ||
7cea6d3e | 571 | static inline int get_cryptoalg_subtype(struct crypto_skcipher *tfm) |
324429d7 | 572 | { |
7cea6d3e | 573 | struct skcipher_alg *alg = crypto_skcipher_alg(tfm); |
324429d7 | 574 | struct chcr_alg_template *chcr_crypto_alg = |
7cea6d3e | 575 | container_of(alg, struct chcr_alg_template, alg.skcipher); |
324429d7 HS |
576 | |
577 | return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK; | |
578 | } | |
579 | ||
b8fd1f41 HJ |
580 | static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx) |
581 | { | |
582 | struct adapter *adap = netdev2adap(dev); | |
583 | struct sge_uld_txq_info *txq_info = | |
584 | adap->sge.uld_txq_info[CXGB4_TX_CRYPTO]; | |
585 | struct sge_uld_txq *txq; | |
586 | int ret = 0; | |
587 | ||
588 | local_bh_disable(); | |
589 | txq = &txq_info->uldtxq[idx]; | |
590 | spin_lock(&txq->sendq.lock); | |
591 | if (txq->full) | |
592 | ret = -1; | |
593 | spin_unlock(&txq->sendq.lock); | |
594 | local_bh_enable(); | |
595 | return ret; | |
596 | } | |
597 | ||
324429d7 HS |
598 | static int generate_copy_rrkey(struct ablk_ctx *ablkctx, |
599 | struct _key_ctx *key_ctx) | |
600 | { | |
601 | if (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) { | |
cc1b156d | 602 | memcpy(key_ctx->key, ablkctx->rrkey, ablkctx->enckey_len); |
324429d7 HS |
603 | } else { |
604 | memcpy(key_ctx->key, | |
605 | ablkctx->key + (ablkctx->enckey_len >> 1), | |
606 | ablkctx->enckey_len >> 1); | |
cc1b156d HJ |
607 | memcpy(key_ctx->key + (ablkctx->enckey_len >> 1), |
608 | ablkctx->rrkey, ablkctx->enckey_len >> 1); | |
324429d7 HS |
609 | } |
610 | return 0; | |
611 | } | |
5110e655 HJ |
612 | |
613 | static int chcr_hash_ent_in_wr(struct scatterlist *src, | |
614 | unsigned int minsg, | |
615 | unsigned int space, | |
616 | unsigned int srcskip) | |
617 | { | |
618 | int srclen = 0; | |
619 | int srcsg = minsg; | |
620 | int soffset = 0, sless; | |
621 | ||
622 | if (sg_dma_len(src) == srcskip) { | |
623 | src = sg_next(src); | |
624 | srcskip = 0; | |
625 | } | |
626 | while (src && space > (sgl_ent_len[srcsg + 1])) { | |
627 | sless = min_t(unsigned int, sg_dma_len(src) - soffset - srcskip, | |
628 | CHCR_SRC_SG_SIZE); | |
629 | srclen += sless; | |
630 | soffset += sless; | |
631 | srcsg++; | |
632 | if (sg_dma_len(src) == (soffset + srcskip)) { | |
633 | src = sg_next(src); | |
634 | soffset = 0; | |
635 | srcskip = 0; | |
636 | } | |
637 | } | |
638 | return srclen; | |
639 | } | |
640 | ||
b8fd1f41 HJ |
641 | static int chcr_sg_ent_in_wr(struct scatterlist *src, |
642 | struct scatterlist *dst, | |
643 | unsigned int minsg, | |
2f47d580 HJ |
644 | unsigned int space, |
645 | unsigned int srcskip, | |
646 | unsigned int dstskip) | |
b8fd1f41 HJ |
647 | { |
648 | int srclen = 0, dstlen = 0; | |
2f47d580 | 649 | int srcsg = minsg, dstsg = minsg; |
1d693cf6 | 650 | int offset = 0, soffset = 0, less, sless = 0; |
b8fd1f41 | 651 | |
2f47d580 HJ |
652 | if (sg_dma_len(src) == srcskip) { |
653 | src = sg_next(src); | |
654 | srcskip = 0; | |
655 | } | |
2f47d580 HJ |
656 | if (sg_dma_len(dst) == dstskip) { |
657 | dst = sg_next(dst); | |
658 | dstskip = 0; | |
659 | } | |
660 | ||
661 | while (src && dst && | |
b8fd1f41 | 662 | space > (sgl_ent_len[srcsg + 1] + dsgl_ent_len[dstsg])) { |
1d693cf6 HJ |
663 | sless = min_t(unsigned int, sg_dma_len(src) - srcskip - soffset, |
664 | CHCR_SRC_SG_SIZE); | |
665 | srclen += sless; | |
b8fd1f41 | 666 | srcsg++; |
2956f36c | 667 | offset = 0; |
b8fd1f41 HJ |
668 | while (dst && ((dstsg + 1) <= MAX_DSGL_ENT) && |
669 | space > (sgl_ent_len[srcsg] + dsgl_ent_len[dstsg + 1])) { | |
670 | if (srclen <= dstlen) | |
671 | break; | |
2f47d580 | 672 | less = min_t(unsigned int, sg_dma_len(dst) - offset - |
db6deea4 | 673 | dstskip, CHCR_DST_SG_SIZE); |
2956f36c HJ |
674 | dstlen += less; |
675 | offset += less; | |
1d693cf6 | 676 | if ((offset + dstskip) == sg_dma_len(dst)) { |
2956f36c HJ |
677 | dst = sg_next(dst); |
678 | offset = 0; | |
679 | } | |
b8fd1f41 | 680 | dstsg++; |
2f47d580 | 681 | dstskip = 0; |
b8fd1f41 | 682 | } |
1d693cf6 HJ |
683 | soffset += sless; |
684 | if ((soffset + srcskip) == sg_dma_len(src)) { | |
685 | src = sg_next(src); | |
686 | srcskip = 0; | |
687 | soffset = 0; | |
688 | } | |
689 | ||
b8fd1f41 | 690 | } |
b8fd1f41 HJ |
691 | return min(srclen, dstlen); |
692 | } | |
693 | ||
28874f26 | 694 | static int chcr_cipher_fallback(struct crypto_sync_skcipher *cipher, |
b8fd1f41 HJ |
695 | u32 flags, |
696 | struct scatterlist *src, | |
697 | struct scatterlist *dst, | |
698 | unsigned int nbytes, | |
699 | u8 *iv, | |
700 | unsigned short op_type) | |
701 | { | |
702 | int err; | |
703 | ||
28874f26 | 704 | SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, cipher); |
6faa0f57 | 705 | |
28874f26 | 706 | skcipher_request_set_sync_tfm(subreq, cipher); |
b8fd1f41 HJ |
707 | skcipher_request_set_callback(subreq, flags, NULL, NULL); |
708 | skcipher_request_set_crypt(subreq, src, dst, | |
709 | nbytes, iv); | |
710 | ||
711 | err = op_type ? crypto_skcipher_decrypt(subreq) : | |
712 | crypto_skcipher_encrypt(subreq); | |
713 | skcipher_request_zero(subreq); | |
714 | ||
715 | return err; | |
324429d7 | 716 | |
b8fd1f41 | 717 | } |
567be3a5 AS |
718 | |
719 | static inline int get_qidxs(struct crypto_async_request *req, | |
720 | unsigned int *txqidx, unsigned int *rxqidx) | |
721 | { | |
722 | struct crypto_tfm *tfm = req->tfm; | |
723 | int ret = 0; | |
724 | ||
725 | switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) { | |
726 | case CRYPTO_ALG_TYPE_AEAD: | |
727 | { | |
728 | struct aead_request *aead_req = | |
729 | container_of(req, struct aead_request, base); | |
730 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(aead_req); | |
731 | *txqidx = reqctx->txqidx; | |
732 | *rxqidx = reqctx->rxqidx; | |
733 | break; | |
734 | } | |
735 | case CRYPTO_ALG_TYPE_SKCIPHER: | |
736 | { | |
737 | struct skcipher_request *sk_req = | |
738 | container_of(req, struct skcipher_request, base); | |
739 | struct chcr_skcipher_req_ctx *reqctx = | |
740 | skcipher_request_ctx(sk_req); | |
741 | *txqidx = reqctx->txqidx; | |
742 | *rxqidx = reqctx->rxqidx; | |
743 | break; | |
744 | } | |
745 | case CRYPTO_ALG_TYPE_AHASH: | |
746 | { | |
747 | struct ahash_request *ahash_req = | |
748 | container_of(req, struct ahash_request, base); | |
749 | struct chcr_ahash_req_ctx *reqctx = | |
750 | ahash_request_ctx(ahash_req); | |
751 | *txqidx = reqctx->txqidx; | |
752 | *rxqidx = reqctx->rxqidx; | |
753 | break; | |
754 | } | |
755 | default: | |
756 | ret = -EINVAL; | |
757 | /* should never get here */ | |
758 | BUG(); | |
759 | break; | |
760 | } | |
761 | return ret; | |
762 | } | |
763 | ||
324429d7 | 764 | static inline void create_wreq(struct chcr_context *ctx, |
358961d1 | 765 | struct chcr_wr *chcr_req, |
2f47d580 HJ |
766 | struct crypto_async_request *req, |
767 | unsigned int imm, | |
570265bf | 768 | int hash_sz, |
2f47d580 | 769 | unsigned int len16, |
2512a624 HJ |
770 | unsigned int sc_len, |
771 | unsigned int lcb) | |
324429d7 HS |
772 | { |
773 | struct uld_ctx *u_ctx = ULD_CTX(ctx); | |
567be3a5 AS |
774 | unsigned int tx_channel_id, rx_channel_id; |
775 | unsigned int txqidx = 0, rxqidx = 0; | |
776 | unsigned int qid, fid; | |
777 | ||
778 | get_qidxs(req, &txqidx, &rxqidx); | |
779 | qid = u_ctx->lldi.rxq_ids[rxqidx]; | |
780 | fid = u_ctx->lldi.rxq_ids[0]; | |
781 | tx_channel_id = txqidx / ctx->txq_perchan; | |
782 | rx_channel_id = rxqidx / ctx->rxq_perchan; | |
324429d7 | 783 | |
324429d7 | 784 | |
570265bf | 785 | chcr_req->wreq.op_to_cctx_size = FILL_WR_OP_CCTX_SIZE; |
358961d1 | 786 | chcr_req->wreq.pld_size_hash_size = |
570265bf | 787 | htonl(FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(hash_sz)); |
358961d1 | 788 | chcr_req->wreq.len16_pkd = |
2f47d580 | 789 | htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(len16, 16))); |
358961d1 | 790 | chcr_req->wreq.cookie = cpu_to_be64((uintptr_t)req); |
567be3a5 AS |
791 | chcr_req->wreq.rx_chid_to_rx_q_id = FILL_WR_RX_Q_ID(rx_channel_id, qid, |
792 | !!lcb, txqidx); | |
324429d7 | 793 | |
567be3a5 | 794 | chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(tx_channel_id, fid); |
2f47d580 | 795 | chcr_req->ulptx.len = htonl((DIV_ROUND_UP(len16, 16) - |
567be3a5 | 796 | ((sizeof(chcr_req->wreq)) >> 4))); |
2f47d580 | 797 | chcr_req->sc_imm.cmd_more = FILL_CMD_MORE(!imm); |
358961d1 | 798 | chcr_req->sc_imm.len = cpu_to_be32(sizeof(struct cpl_tx_sec_pdu) + |
2f47d580 | 799 | sizeof(chcr_req->key_ctx) + sc_len); |
324429d7 HS |
800 | } |
801 | ||
802 | /** | |
803 | * create_cipher_wr - form the WR for cipher operations | |
804 | * @req: cipher req. | |
805 | * @ctx: crypto driver context of the request. | |
806 | * @qid: ingress qid where response of this WR should be received. | |
807 | * @op_type: encryption or decryption | |
808 | */ | |
b8fd1f41 | 809 | static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam) |
324429d7 | 810 | { |
7cea6d3e | 811 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req); |
567be3a5 AS |
812 | struct chcr_context *ctx = c_ctx(tfm); |
813 | struct ablk_ctx *ablkctx = ABLK_CTX(ctx); | |
324429d7 | 814 | struct sk_buff *skb = NULL; |
358961d1 | 815 | struct chcr_wr *chcr_req; |
324429d7 | 816 | struct cpl_rx_phys_dsgl *phys_cpl; |
2f47d580 | 817 | struct ulptx_sgl *ulptx; |
7cea6d3e AB |
818 | struct chcr_skcipher_req_ctx *reqctx = |
819 | skcipher_request_ctx(wrparam->req); | |
2f47d580 | 820 | unsigned int temp = 0, transhdr_len, dst_size; |
b8fd1f41 | 821 | int error; |
2956f36c | 822 | int nents; |
2f47d580 | 823 | unsigned int kctx_len; |
b8fd1f41 HJ |
824 | gfp_t flags = wrparam->req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? |
825 | GFP_KERNEL : GFP_ATOMIC; | |
567be3a5 AS |
826 | struct adapter *adap = padap(ctx->dev); |
827 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; | |
324429d7 | 828 | |
2f47d580 HJ |
829 | nents = sg_nents_xlen(reqctx->dstsg, wrparam->bytes, CHCR_DST_SG_SIZE, |
830 | reqctx->dst_ofst); | |
335bcc4a | 831 | dst_size = get_space_for_phys_dsgl(nents); |
125d01ca | 832 | kctx_len = roundup(ablkctx->enckey_len, 16); |
2f47d580 HJ |
833 | transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size); |
834 | nents = sg_nents_xlen(reqctx->srcsg, wrparam->bytes, | |
835 | CHCR_SRC_SG_SIZE, reqctx->src_ofst); | |
335bcc4a HJ |
836 | temp = reqctx->imm ? roundup(wrparam->bytes, 16) : |
837 | (sgl_len(nents) * 8); | |
2f47d580 | 838 | transhdr_len += temp; |
125d01ca | 839 | transhdr_len = roundup(transhdr_len, 16); |
2f47d580 | 840 | skb = alloc_skb(SGE_MAX_WR_LEN, flags); |
b8fd1f41 HJ |
841 | if (!skb) { |
842 | error = -ENOMEM; | |
843 | goto err; | |
844 | } | |
de77b966 | 845 | chcr_req = __skb_put_zero(skb, transhdr_len); |
358961d1 | 846 | chcr_req->sec_cpl.op_ivinsrtofst = |
567be3a5 | 847 | FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1); |
358961d1 | 848 | |
2f47d580 | 849 | chcr_req->sec_cpl.pldlen = htonl(IV + wrparam->bytes); |
358961d1 | 850 | chcr_req->sec_cpl.aadstart_cipherstop_hi = |
2f47d580 | 851 | FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, IV + 1, 0); |
358961d1 HJ |
852 | |
853 | chcr_req->sec_cpl.cipherstop_lo_authinsert = | |
854 | FILL_SEC_CPL_AUTHINSERT(0, 0, 0, 0); | |
b8fd1f41 | 855 | chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, 0, |
324429d7 | 856 | ablkctx->ciph_mode, |
2f47d580 | 857 | 0, 0, IV >> 1); |
358961d1 | 858 | chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 0, |
335bcc4a | 859 | 0, 1, dst_size); |
324429d7 | 860 | |
358961d1 | 861 | chcr_req->key_ctx.ctx_hdr = ablkctx->key_ctx_hdr; |
b8fd1f41 | 862 | if ((reqctx->op == CHCR_DECRYPT_OP) && |
7cea6d3e | 863 | (!(get_cryptoalg_subtype(tfm) == |
b8fd1f41 | 864 | CRYPTO_ALG_SUB_TYPE_CTR)) && |
7cea6d3e | 865 | (!(get_cryptoalg_subtype(tfm) == |
b8fd1f41 | 866 | CRYPTO_ALG_SUB_TYPE_CTR_RFC3686))) { |
358961d1 | 867 | generate_copy_rrkey(ablkctx, &chcr_req->key_ctx); |
324429d7 | 868 | } else { |
b8fd1f41 HJ |
869 | if ((ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) || |
870 | (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CTR)) { | |
358961d1 HJ |
871 | memcpy(chcr_req->key_ctx.key, ablkctx->key, |
872 | ablkctx->enckey_len); | |
324429d7 | 873 | } else { |
358961d1 | 874 | memcpy(chcr_req->key_ctx.key, ablkctx->key + |
324429d7 HS |
875 | (ablkctx->enckey_len >> 1), |
876 | ablkctx->enckey_len >> 1); | |
358961d1 | 877 | memcpy(chcr_req->key_ctx.key + |
324429d7 HS |
878 | (ablkctx->enckey_len >> 1), |
879 | ablkctx->key, | |
880 | ablkctx->enckey_len >> 1); | |
881 | } | |
882 | } | |
358961d1 | 883 | phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len); |
2f47d580 HJ |
884 | ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size); |
885 | chcr_add_cipher_src_ent(wrparam->req, ulptx, wrparam); | |
886 | chcr_add_cipher_dst_ent(wrparam->req, phys_cpl, wrparam, wrparam->qid); | |
324429d7 | 887 | |
ee0863ba | 888 | atomic_inc(&adap->chcr_stats.cipher_rqst); |
335bcc4a HJ |
889 | temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + kctx_len + IV |
890 | + (reqctx->imm ? (wrparam->bytes) : 0); | |
2f47d580 HJ |
891 | create_wreq(c_ctx(tfm), chcr_req, &(wrparam->req->base), reqctx->imm, 0, |
892 | transhdr_len, temp, | |
2512a624 | 893 | ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC); |
5c86a8ff | 894 | reqctx->skb = skb; |
5fb78dba HJ |
895 | |
896 | if (reqctx->op && (ablkctx->ciph_mode == | |
897 | CHCR_SCMD_CIPHER_MODE_AES_CBC)) | |
898 | sg_pcopy_to_buffer(wrparam->req->src, | |
7cea6d3e | 899 | sg_nents(wrparam->req->src), wrparam->req->iv, 16, |
5fb78dba HJ |
900 | reqctx->processed + wrparam->bytes - AES_BLOCK_SIZE); |
901 | ||
324429d7 | 902 | return skb; |
b8fd1f41 HJ |
903 | err: |
904 | return ERR_PTR(error); | |
905 | } | |
906 | ||
907 | static inline int chcr_keyctx_ck_size(unsigned int keylen) | |
908 | { | |
909 | int ck_size = 0; | |
910 | ||
911 | if (keylen == AES_KEYSIZE_128) | |
912 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128; | |
913 | else if (keylen == AES_KEYSIZE_192) | |
914 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192; | |
915 | else if (keylen == AES_KEYSIZE_256) | |
916 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256; | |
917 | else | |
918 | ck_size = 0; | |
919 | ||
920 | return ck_size; | |
921 | } | |
7cea6d3e | 922 | static int chcr_cipher_fallback_setkey(struct crypto_skcipher *cipher, |
b8fd1f41 HJ |
923 | const u8 *key, |
924 | unsigned int keylen) | |
925 | { | |
2f47d580 | 926 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher)); |
b8fd1f41 | 927 | |
28874f26 KC |
928 | crypto_sync_skcipher_clear_flags(ablkctx->sw_cipher, |
929 | CRYPTO_TFM_REQ_MASK); | |
930 | crypto_sync_skcipher_set_flags(ablkctx->sw_cipher, | |
931 | cipher->base.crt_flags & CRYPTO_TFM_REQ_MASK); | |
af5034e8 | 932 | return crypto_sync_skcipher_setkey(ablkctx->sw_cipher, key, keylen); |
324429d7 HS |
933 | } |
934 | ||
7cea6d3e | 935 | static int chcr_aes_cbc_setkey(struct crypto_skcipher *cipher, |
b8fd1f41 | 936 | const u8 *key, |
324429d7 HS |
937 | unsigned int keylen) |
938 | { | |
2f47d580 | 939 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher)); |
324429d7 HS |
940 | unsigned int ck_size, context_size; |
941 | u16 alignment = 0; | |
b8fd1f41 | 942 | int err; |
324429d7 | 943 | |
b8fd1f41 HJ |
944 | err = chcr_cipher_fallback_setkey(cipher, key, keylen); |
945 | if (err) | |
324429d7 | 946 | goto badkey_err; |
b8fd1f41 HJ |
947 | |
948 | ck_size = chcr_keyctx_ck_size(keylen); | |
949 | alignment = ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192 ? 8 : 0; | |
cc1b156d HJ |
950 | memcpy(ablkctx->key, key, keylen); |
951 | ablkctx->enckey_len = keylen; | |
952 | get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, keylen << 3); | |
324429d7 HS |
953 | context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + |
954 | keylen + alignment) >> 4; | |
955 | ||
956 | ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, | |
957 | 0, 0, context_size); | |
958 | ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CBC; | |
959 | return 0; | |
960 | badkey_err: | |
324429d7 | 961 | ablkctx->enckey_len = 0; |
b8fd1f41 HJ |
962 | |
963 | return err; | |
324429d7 HS |
964 | } |
965 | ||
7cea6d3e | 966 | static int chcr_aes_ctr_setkey(struct crypto_skcipher *cipher, |
b8fd1f41 HJ |
967 | const u8 *key, |
968 | unsigned int keylen) | |
324429d7 | 969 | { |
2f47d580 | 970 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher)); |
b8fd1f41 HJ |
971 | unsigned int ck_size, context_size; |
972 | u16 alignment = 0; | |
973 | int err; | |
974 | ||
975 | err = chcr_cipher_fallback_setkey(cipher, key, keylen); | |
976 | if (err) | |
977 | goto badkey_err; | |
978 | ck_size = chcr_keyctx_ck_size(keylen); | |
979 | alignment = (ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192) ? 8 : 0; | |
980 | memcpy(ablkctx->key, key, keylen); | |
981 | ablkctx->enckey_len = keylen; | |
982 | context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + | |
983 | keylen + alignment) >> 4; | |
984 | ||
985 | ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, | |
986 | 0, 0, context_size); | |
987 | ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CTR; | |
988 | ||
989 | return 0; | |
990 | badkey_err: | |
b8fd1f41 HJ |
991 | ablkctx->enckey_len = 0; |
992 | ||
993 | return err; | |
994 | } | |
995 | ||
7cea6d3e | 996 | static int chcr_aes_rfc3686_setkey(struct crypto_skcipher *cipher, |
b8fd1f41 HJ |
997 | const u8 *key, |
998 | unsigned int keylen) | |
999 | { | |
2f47d580 | 1000 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher)); |
b8fd1f41 HJ |
1001 | unsigned int ck_size, context_size; |
1002 | u16 alignment = 0; | |
1003 | int err; | |
1004 | ||
1005 | if (keylen < CTR_RFC3686_NONCE_SIZE) | |
1006 | return -EINVAL; | |
1007 | memcpy(ablkctx->nonce, key + (keylen - CTR_RFC3686_NONCE_SIZE), | |
1008 | CTR_RFC3686_NONCE_SIZE); | |
1009 | ||
1010 | keylen -= CTR_RFC3686_NONCE_SIZE; | |
1011 | err = chcr_cipher_fallback_setkey(cipher, key, keylen); | |
1012 | if (err) | |
1013 | goto badkey_err; | |
1014 | ||
1015 | ck_size = chcr_keyctx_ck_size(keylen); | |
1016 | alignment = (ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192) ? 8 : 0; | |
1017 | memcpy(ablkctx->key, key, keylen); | |
1018 | ablkctx->enckey_len = keylen; | |
1019 | context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + | |
1020 | keylen + alignment) >> 4; | |
1021 | ||
1022 | ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, | |
1023 | 0, 0, context_size); | |
1024 | ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CTR; | |
1025 | ||
1026 | return 0; | |
1027 | badkey_err: | |
b8fd1f41 HJ |
1028 | ablkctx->enckey_len = 0; |
1029 | ||
1030 | return err; | |
1031 | } | |
1032 | static void ctr_add_iv(u8 *dstiv, u8 *srciv, u32 add) | |
1033 | { | |
1034 | unsigned int size = AES_BLOCK_SIZE; | |
1035 | __be32 *b = (__be32 *)(dstiv + size); | |
1036 | u32 c, prev; | |
1037 | ||
1038 | memcpy(dstiv, srciv, AES_BLOCK_SIZE); | |
1039 | for (; size >= 4; size -= 4) { | |
1040 | prev = be32_to_cpu(*--b); | |
1041 | c = prev + add; | |
1042 | *b = cpu_to_be32(c); | |
1043 | if (prev < c) | |
1044 | break; | |
1045 | add = 1; | |
1046 | } | |
1047 | ||
1048 | } | |
1049 | ||
1050 | static unsigned int adjust_ctr_overflow(u8 *iv, u32 bytes) | |
1051 | { | |
1052 | __be32 *b = (__be32 *)(iv + AES_BLOCK_SIZE); | |
1053 | u64 c; | |
1054 | u32 temp = be32_to_cpu(*--b); | |
1055 | ||
1056 | temp = ~temp; | |
1057 | c = (u64)temp + 1; // No of block can processed withou overflow | |
1058 | if ((bytes / AES_BLOCK_SIZE) > c) | |
1059 | bytes = c * AES_BLOCK_SIZE; | |
1060 | return bytes; | |
1061 | } | |
1062 | ||
7cea6d3e | 1063 | static int chcr_update_tweak(struct skcipher_request *req, u8 *iv, |
209897d5 | 1064 | u32 isfinal) |
b8fd1f41 | 1065 | { |
7cea6d3e | 1066 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
2f47d580 | 1067 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm)); |
7cea6d3e | 1068 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
571c47ab | 1069 | struct crypto_aes_ctx aes; |
b8fd1f41 HJ |
1070 | int ret, i; |
1071 | u8 *key; | |
1072 | unsigned int keylen; | |
de1a00ac HJ |
1073 | int round = reqctx->last_req_len / AES_BLOCK_SIZE; |
1074 | int round8 = round / 8; | |
b8fd1f41 | 1075 | |
de1a00ac | 1076 | memcpy(iv, reqctx->iv, AES_BLOCK_SIZE); |
b8fd1f41 | 1077 | |
b8fd1f41 HJ |
1078 | keylen = ablkctx->enckey_len / 2; |
1079 | key = ablkctx->key + keylen; | |
571c47ab | 1080 | ret = aes_expandkey(&aes, key, keylen); |
b8fd1f41 | 1081 | if (ret) |
571c47ab AB |
1082 | return ret; |
1083 | aes_encrypt(&aes, iv, iv); | |
de1a00ac HJ |
1084 | for (i = 0; i < round8; i++) |
1085 | gf128mul_x8_ble((le128 *)iv, (le128 *)iv); | |
1086 | ||
1087 | for (i = 0; i < (round % 8); i++) | |
b8fd1f41 HJ |
1088 | gf128mul_x_ble((le128 *)iv, (le128 *)iv); |
1089 | ||
209897d5 | 1090 | if (!isfinal) |
571c47ab AB |
1091 | aes_decrypt(&aes, iv, iv); |
1092 | ||
1093 | memzero_explicit(&aes, sizeof(aes)); | |
1094 | return 0; | |
b8fd1f41 HJ |
1095 | } |
1096 | ||
7cea6d3e | 1097 | static int chcr_update_cipher_iv(struct skcipher_request *req, |
b8fd1f41 HJ |
1098 | struct cpl_fw6_pld *fw6_pld, u8 *iv) |
1099 | { | |
7cea6d3e AB |
1100 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
1101 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); | |
1102 | int subtype = get_cryptoalg_subtype(tfm); | |
ab677ff4 | 1103 | int ret = 0; |
324429d7 | 1104 | |
b8fd1f41 | 1105 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR) |
7cea6d3e | 1106 | ctr_add_iv(iv, req->iv, (reqctx->processed / |
b8fd1f41 HJ |
1107 | AES_BLOCK_SIZE)); |
1108 | else if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_RFC3686) | |
1109 | *(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE + | |
1110 | CTR_RFC3686_IV_SIZE) = cpu_to_be32((reqctx->processed / | |
1111 | AES_BLOCK_SIZE) + 1); | |
1112 | else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS) | |
209897d5 | 1113 | ret = chcr_update_tweak(req, iv, 0); |
b8fd1f41 HJ |
1114 | else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) { |
1115 | if (reqctx->op) | |
5fb78dba | 1116 | /*Updated before sending last WR*/ |
7cea6d3e | 1117 | memcpy(iv, req->iv, AES_BLOCK_SIZE); |
b8fd1f41 HJ |
1118 | else |
1119 | memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE); | |
1120 | } | |
1121 | ||
324429d7 | 1122 | return ret; |
b8fd1f41 | 1123 | |
324429d7 HS |
1124 | } |
1125 | ||
b8fd1f41 HJ |
1126 | /* We need separate function for final iv because in rfc3686 Initial counter |
1127 | * starts from 1 and buffer size of iv is 8 byte only which remains constant | |
1128 | * for subsequent update requests | |
1129 | */ | |
1130 | ||
7cea6d3e | 1131 | static int chcr_final_cipher_iv(struct skcipher_request *req, |
b8fd1f41 HJ |
1132 | struct cpl_fw6_pld *fw6_pld, u8 *iv) |
1133 | { | |
7cea6d3e AB |
1134 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
1135 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); | |
1136 | int subtype = get_cryptoalg_subtype(tfm); | |
b8fd1f41 HJ |
1137 | int ret = 0; |
1138 | ||
1139 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR) | |
7cea6d3e | 1140 | ctr_add_iv(iv, req->iv, DIV_ROUND_UP(reqctx->processed, |
0a4491d3 | 1141 | AES_BLOCK_SIZE)); |
bed44d0c AS |
1142 | else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS) { |
1143 | if (!reqctx->partial_req) | |
1144 | memcpy(iv, reqctx->iv, AES_BLOCK_SIZE); | |
1145 | else | |
1146 | ret = chcr_update_tweak(req, iv, 1); | |
1147 | } | |
b8fd1f41 | 1148 | else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) { |
5fb78dba HJ |
1149 | /*Already updated for Decrypt*/ |
1150 | if (!reqctx->op) | |
b8fd1f41 HJ |
1151 | memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE); |
1152 | ||
1153 | } | |
1154 | return ret; | |
1155 | ||
1156 | } | |
1157 | ||
7cea6d3e | 1158 | static int chcr_handle_cipher_resp(struct skcipher_request *req, |
b8fd1f41 | 1159 | unsigned char *input, int err) |
324429d7 | 1160 | { |
7cea6d3e | 1161 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
1c502e2e | 1162 | struct chcr_context *ctx = c_ctx(tfm); |
2f47d580 HJ |
1163 | struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); |
1164 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm)); | |
324429d7 | 1165 | struct sk_buff *skb; |
b8fd1f41 | 1166 | struct cpl_fw6_pld *fw6_pld = (struct cpl_fw6_pld *)input; |
7cea6d3e | 1167 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
567be3a5 | 1168 | struct cipher_wr_param wrparam; |
fef4912b | 1169 | struct chcr_dev *dev = c_ctx(tfm)->dev; |
b8fd1f41 HJ |
1170 | int bytes; |
1171 | ||
b8fd1f41 | 1172 | if (err) |
2f47d580 | 1173 | goto unmap; |
7cea6d3e | 1174 | if (req->cryptlen == reqctx->processed) { |
2f47d580 HJ |
1175 | chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, |
1176 | req); | |
7cea6d3e | 1177 | err = chcr_final_cipher_iv(req, fw6_pld, req->iv); |
b8fd1f41 HJ |
1178 | goto complete; |
1179 | } | |
1180 | ||
2f47d580 | 1181 | if (!reqctx->imm) { |
335bcc4a | 1182 | bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 0, |
5110e655 | 1183 | CIP_SPACE_LEFT(ablkctx->enckey_len), |
2f47d580 | 1184 | reqctx->src_ofst, reqctx->dst_ofst); |
7cea6d3e AB |
1185 | if ((bytes + reqctx->processed) >= req->cryptlen) |
1186 | bytes = req->cryptlen - reqctx->processed; | |
db6deea4 | 1187 | else |
125d01ca | 1188 | bytes = rounddown(bytes, 16); |
2f47d580 HJ |
1189 | } else { |
1190 | /*CTR mode counter overfloa*/ | |
7cea6d3e | 1191 | bytes = req->cryptlen - reqctx->processed; |
2f47d580 | 1192 | } |
b8fd1f41 HJ |
1193 | err = chcr_update_cipher_iv(req, fw6_pld, reqctx->iv); |
1194 | if (err) | |
2f47d580 | 1195 | goto unmap; |
b8fd1f41 HJ |
1196 | |
1197 | if (unlikely(bytes == 0)) { | |
2f47d580 HJ |
1198 | chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, |
1199 | req); | |
b8fd1f41 HJ |
1200 | err = chcr_cipher_fallback(ablkctx->sw_cipher, |
1201 | req->base.flags, | |
2f47d580 HJ |
1202 | req->src, |
1203 | req->dst, | |
7cea6d3e AB |
1204 | req->cryptlen, |
1205 | req->iv, | |
b8fd1f41 HJ |
1206 | reqctx->op); |
1207 | goto complete; | |
1208 | } | |
1209 | ||
7cea6d3e | 1210 | if (get_cryptoalg_subtype(tfm) == |
b8fd1f41 HJ |
1211 | CRYPTO_ALG_SUB_TYPE_CTR) |
1212 | bytes = adjust_ctr_overflow(reqctx->iv, bytes); | |
567be3a5 | 1213 | wrparam.qid = u_ctx->lldi.rxq_ids[reqctx->rxqidx]; |
b8fd1f41 HJ |
1214 | wrparam.req = req; |
1215 | wrparam.bytes = bytes; | |
1216 | skb = create_cipher_wr(&wrparam); | |
1217 | if (IS_ERR(skb)) { | |
1218 | pr_err("chcr : %s : Failed to form WR. No memory\n", __func__); | |
1219 | err = PTR_ERR(skb); | |
2f47d580 | 1220 | goto unmap; |
b8fd1f41 HJ |
1221 | } |
1222 | skb->dev = u_ctx->lldi.ports[0]; | |
567be3a5 | 1223 | set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx); |
b8fd1f41 | 1224 | chcr_send_wr(skb); |
2f47d580 HJ |
1225 | reqctx->last_req_len = bytes; |
1226 | reqctx->processed += bytes; | |
1c502e2e AS |
1227 | if (get_cryptoalg_subtype(tfm) == |
1228 | CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == | |
1229 | CRYPTO_TFM_REQ_MAY_SLEEP ) { | |
1230 | complete(&ctx->cbc_aes_aio_done); | |
1231 | } | |
b8fd1f41 | 1232 | return 0; |
2f47d580 HJ |
1233 | unmap: |
1234 | chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req); | |
b8fd1f41 | 1235 | complete: |
1c502e2e AS |
1236 | if (get_cryptoalg_subtype(tfm) == |
1237 | CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == | |
1238 | CRYPTO_TFM_REQ_MAY_SLEEP ) { | |
1239 | complete(&ctx->cbc_aes_aio_done); | |
1240 | } | |
fef4912b | 1241 | chcr_dec_wrcount(dev); |
b8fd1f41 HJ |
1242 | req->base.complete(&req->base, err); |
1243 | return err; | |
1244 | } | |
1245 | ||
7cea6d3e | 1246 | static int process_cipher(struct skcipher_request *req, |
b8fd1f41 HJ |
1247 | unsigned short qid, |
1248 | struct sk_buff **skb, | |
1249 | unsigned short op_type) | |
1250 | { | |
7cea6d3e AB |
1251 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
1252 | unsigned int ivsize = crypto_skcipher_ivsize(tfm); | |
1253 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); | |
2f47d580 | 1254 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm)); |
b8fd1f41 | 1255 | struct cipher_wr_param wrparam; |
2956f36c | 1256 | int bytes, err = -EINVAL; |
b8fd1f41 | 1257 | |
b8fd1f41 | 1258 | reqctx->processed = 0; |
bed44d0c | 1259 | reqctx->partial_req = 0; |
7cea6d3e | 1260 | if (!req->iv) |
b8fd1f41 HJ |
1261 | goto error; |
1262 | if ((ablkctx->enckey_len == 0) || (ivsize > AES_BLOCK_SIZE) || | |
7cea6d3e AB |
1263 | (req->cryptlen == 0) || |
1264 | (req->cryptlen % crypto_skcipher_blocksize(tfm))) { | |
b8fd1f41 | 1265 | pr_err("AES: Invalid value of Key Len %d nbytes %d IV Len %d\n", |
7cea6d3e | 1266 | ablkctx->enckey_len, req->cryptlen, ivsize); |
b8fd1f41 HJ |
1267 | goto error; |
1268 | } | |
fef4912b HJ |
1269 | |
1270 | err = chcr_cipher_dma_map(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req); | |
1271 | if (err) | |
1272 | goto error; | |
7cea6d3e | 1273 | if (req->cryptlen < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) + |
2f47d580 HJ |
1274 | AES_MIN_KEY_SIZE + |
1275 | sizeof(struct cpl_rx_phys_dsgl) + | |
1276 | /*Min dsgl size*/ | |
1277 | 32))) { | |
1278 | /* Can be sent as Imm*/ | |
1279 | unsigned int dnents = 0, transhdr_len, phys_dsgl, kctx_len; | |
1280 | ||
7cea6d3e | 1281 | dnents = sg_nents_xlen(req->dst, req->cryptlen, |
2f47d580 | 1282 | CHCR_DST_SG_SIZE, 0); |
2f47d580 | 1283 | phys_dsgl = get_space_for_phys_dsgl(dnents); |
125d01ca | 1284 | kctx_len = roundup(ablkctx->enckey_len, 16); |
2f47d580 | 1285 | transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl); |
7cea6d3e | 1286 | reqctx->imm = (transhdr_len + IV + req->cryptlen) <= |
2f47d580 | 1287 | SGE_MAX_WR_LEN; |
7cea6d3e | 1288 | bytes = IV + req->cryptlen; |
2f47d580 HJ |
1289 | |
1290 | } else { | |
1291 | reqctx->imm = 0; | |
1292 | } | |
1293 | ||
1294 | if (!reqctx->imm) { | |
335bcc4a | 1295 | bytes = chcr_sg_ent_in_wr(req->src, req->dst, 0, |
5110e655 | 1296 | CIP_SPACE_LEFT(ablkctx->enckey_len), |
2f47d580 | 1297 | 0, 0); |
7cea6d3e AB |
1298 | if ((bytes + reqctx->processed) >= req->cryptlen) |
1299 | bytes = req->cryptlen - reqctx->processed; | |
db6deea4 | 1300 | else |
125d01ca | 1301 | bytes = rounddown(bytes, 16); |
2f47d580 | 1302 | } else { |
7cea6d3e | 1303 | bytes = req->cryptlen; |
2f47d580 | 1304 | } |
7cea6d3e | 1305 | if (get_cryptoalg_subtype(tfm) == |
db6deea4 | 1306 | CRYPTO_ALG_SUB_TYPE_CTR) { |
7cea6d3e | 1307 | bytes = adjust_ctr_overflow(req->iv, bytes); |
b8fd1f41 | 1308 | } |
7cea6d3e | 1309 | if (get_cryptoalg_subtype(tfm) == |
b8fd1f41 HJ |
1310 | CRYPTO_ALG_SUB_TYPE_CTR_RFC3686) { |
1311 | memcpy(reqctx->iv, ablkctx->nonce, CTR_RFC3686_NONCE_SIZE); | |
7cea6d3e | 1312 | memcpy(reqctx->iv + CTR_RFC3686_NONCE_SIZE, req->iv, |
b8fd1f41 HJ |
1313 | CTR_RFC3686_IV_SIZE); |
1314 | ||
1315 | /* initialize counter portion of counter block */ | |
1316 | *(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE + | |
1317 | CTR_RFC3686_IV_SIZE) = cpu_to_be32(1); | |
1318 | ||
1319 | } else { | |
1320 | ||
7cea6d3e | 1321 | memcpy(reqctx->iv, req->iv, IV); |
b8fd1f41 HJ |
1322 | } |
1323 | if (unlikely(bytes == 0)) { | |
2f47d580 HJ |
1324 | chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, |
1325 | req); | |
b8fd1f41 HJ |
1326 | err = chcr_cipher_fallback(ablkctx->sw_cipher, |
1327 | req->base.flags, | |
1328 | req->src, | |
1329 | req->dst, | |
7cea6d3e | 1330 | req->cryptlen, |
7ffb9118 | 1331 | reqctx->iv, |
b8fd1f41 HJ |
1332 | op_type); |
1333 | goto error; | |
1334 | } | |
b8fd1f41 | 1335 | reqctx->op = op_type; |
2f47d580 HJ |
1336 | reqctx->srcsg = req->src; |
1337 | reqctx->dstsg = req->dst; | |
1338 | reqctx->src_ofst = 0; | |
1339 | reqctx->dst_ofst = 0; | |
b8fd1f41 HJ |
1340 | wrparam.qid = qid; |
1341 | wrparam.req = req; | |
1342 | wrparam.bytes = bytes; | |
1343 | *skb = create_cipher_wr(&wrparam); | |
1344 | if (IS_ERR(*skb)) { | |
1345 | err = PTR_ERR(*skb); | |
2f47d580 | 1346 | goto unmap; |
b8fd1f41 | 1347 | } |
2f47d580 HJ |
1348 | reqctx->processed = bytes; |
1349 | reqctx->last_req_len = bytes; | |
bed44d0c | 1350 | reqctx->partial_req = !!(req->cryptlen - reqctx->processed); |
b8fd1f41 HJ |
1351 | |
1352 | return 0; | |
2f47d580 HJ |
1353 | unmap: |
1354 | chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req); | |
b8fd1f41 HJ |
1355 | error: |
1356 | return err; | |
1357 | } | |
1358 | ||
7cea6d3e | 1359 | static int chcr_aes_encrypt(struct skcipher_request *req) |
b8fd1f41 | 1360 | { |
7cea6d3e | 1361 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
bed44d0c | 1362 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
fef4912b | 1363 | struct chcr_dev *dev = c_ctx(tfm)->dev; |
b8fd1f41 | 1364 | struct sk_buff *skb = NULL; |
567be3a5 | 1365 | int err; |
2f47d580 | 1366 | struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); |
567be3a5 AS |
1367 | struct chcr_context *ctx = c_ctx(tfm); |
1368 | unsigned int cpu; | |
1369 | ||
1370 | cpu = get_cpu(); | |
1371 | reqctx->txqidx = cpu % ctx->ntxq; | |
1372 | reqctx->rxqidx = cpu % ctx->nrxq; | |
1373 | put_cpu(); | |
324429d7 | 1374 | |
fef4912b HJ |
1375 | err = chcr_inc_wrcount(dev); |
1376 | if (err) | |
1377 | return -ENXIO; | |
324429d7 | 1378 | if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], |
567be3a5 AS |
1379 | reqctx->txqidx) && |
1380 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) { | |
fef4912b HJ |
1381 | err = -ENOSPC; |
1382 | goto error; | |
324429d7 HS |
1383 | } |
1384 | ||
567be3a5 | 1385 | err = process_cipher(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx], |
2f47d580 | 1386 | &skb, CHCR_ENCRYPT_OP); |
b8fd1f41 HJ |
1387 | if (err || !skb) |
1388 | return err; | |
324429d7 | 1389 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1390 | set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx); |
324429d7 | 1391 | chcr_send_wr(skb); |
1c502e2e AS |
1392 | if (get_cryptoalg_subtype(tfm) == |
1393 | CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == | |
1394 | CRYPTO_TFM_REQ_MAY_SLEEP ) { | |
bed44d0c | 1395 | reqctx->partial_req = 1; |
1c502e2e AS |
1396 | wait_for_completion(&ctx->cbc_aes_aio_done); |
1397 | } | |
567be3a5 | 1398 | return -EINPROGRESS; |
fef4912b HJ |
1399 | error: |
1400 | chcr_dec_wrcount(dev); | |
1401 | return err; | |
324429d7 HS |
1402 | } |
1403 | ||
7cea6d3e | 1404 | static int chcr_aes_decrypt(struct skcipher_request *req) |
324429d7 | 1405 | { |
7cea6d3e | 1406 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
567be3a5 | 1407 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
2f47d580 | 1408 | struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); |
fef4912b | 1409 | struct chcr_dev *dev = c_ctx(tfm)->dev; |
b8fd1f41 | 1410 | struct sk_buff *skb = NULL; |
567be3a5 AS |
1411 | int err; |
1412 | struct chcr_context *ctx = c_ctx(tfm); | |
1413 | unsigned int cpu; | |
1414 | ||
1415 | cpu = get_cpu(); | |
1416 | reqctx->txqidx = cpu % ctx->ntxq; | |
1417 | reqctx->rxqidx = cpu % ctx->nrxq; | |
1418 | put_cpu(); | |
324429d7 | 1419 | |
fef4912b HJ |
1420 | err = chcr_inc_wrcount(dev); |
1421 | if (err) | |
1422 | return -ENXIO; | |
1423 | ||
324429d7 | 1424 | if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], |
567be3a5 AS |
1425 | reqctx->txqidx) && |
1426 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) | |
6faa0f57 | 1427 | return -ENOSPC; |
567be3a5 | 1428 | err = process_cipher(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx], |
fc6176a2 | 1429 | &skb, CHCR_DECRYPT_OP); |
b8fd1f41 HJ |
1430 | if (err || !skb) |
1431 | return err; | |
324429d7 | 1432 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1433 | set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx); |
324429d7 | 1434 | chcr_send_wr(skb); |
567be3a5 | 1435 | return -EINPROGRESS; |
324429d7 | 1436 | } |
324429d7 HS |
1437 | static int chcr_device_init(struct chcr_context *ctx) |
1438 | { | |
14c19b17 | 1439 | struct uld_ctx *u_ctx = NULL; |
567be3a5 AS |
1440 | int txq_perchan, ntxq; |
1441 | int err = 0, rxq_perchan; | |
324429d7 | 1442 | |
324429d7 | 1443 | if (!ctx->dev) { |
14c19b17 HJ |
1444 | u_ctx = assign_chcr_device(); |
1445 | if (!u_ctx) { | |
324429d7 HS |
1446 | pr_err("chcr device assignment fails\n"); |
1447 | goto out; | |
1448 | } | |
fef4912b | 1449 | ctx->dev = &u_ctx->dev; |
a1c6fd43 | 1450 | ntxq = u_ctx->lldi.ntxq; |
324429d7 | 1451 | rxq_perchan = u_ctx->lldi.nrxq / u_ctx->lldi.nchan; |
72a56ca9 | 1452 | txq_perchan = ntxq / u_ctx->lldi.nchan; |
567be3a5 AS |
1453 | ctx->ntxq = ntxq; |
1454 | ctx->nrxq = u_ctx->lldi.nrxq; | |
1455 | ctx->rxq_perchan = rxq_perchan; | |
1456 | ctx->txq_perchan = txq_perchan; | |
324429d7 HS |
1457 | } |
1458 | out: | |
1459 | return err; | |
1460 | } | |
1461 | ||
7cea6d3e | 1462 | static int chcr_init_tfm(struct crypto_skcipher *tfm) |
324429d7 | 1463 | { |
7cea6d3e AB |
1464 | struct skcipher_alg *alg = crypto_skcipher_alg(tfm); |
1465 | struct chcr_context *ctx = crypto_skcipher_ctx(tfm); | |
b8fd1f41 HJ |
1466 | struct ablk_ctx *ablkctx = ABLK_CTX(ctx); |
1467 | ||
7cea6d3e | 1468 | ablkctx->sw_cipher = crypto_alloc_sync_skcipher(alg->base.cra_name, 0, |
28874f26 | 1469 | CRYPTO_ALG_NEED_FALLBACK); |
b8fd1f41 | 1470 | if (IS_ERR(ablkctx->sw_cipher)) { |
7cea6d3e | 1471 | pr_err("failed to allocate fallback for %s\n", alg->base.cra_name); |
b8fd1f41 HJ |
1472 | return PTR_ERR(ablkctx->sw_cipher); |
1473 | } | |
1c502e2e | 1474 | init_completion(&ctx->cbc_aes_aio_done); |
7cea6d3e AB |
1475 | crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx)); |
1476 | ||
1477 | return chcr_device_init(ctx); | |
324429d7 HS |
1478 | } |
1479 | ||
7cea6d3e | 1480 | static int chcr_rfc3686_init(struct crypto_skcipher *tfm) |
b8fd1f41 | 1481 | { |
7cea6d3e AB |
1482 | struct skcipher_alg *alg = crypto_skcipher_alg(tfm); |
1483 | struct chcr_context *ctx = crypto_skcipher_ctx(tfm); | |
b8fd1f41 HJ |
1484 | struct ablk_ctx *ablkctx = ABLK_CTX(ctx); |
1485 | ||
1486 | /*RFC3686 initialises IV counter value to 1, rfc3686(ctr(aes)) | |
1487 | * cannot be used as fallback in chcr_handle_cipher_response | |
1488 | */ | |
28874f26 KC |
1489 | ablkctx->sw_cipher = crypto_alloc_sync_skcipher("ctr(aes)", 0, |
1490 | CRYPTO_ALG_NEED_FALLBACK); | |
b8fd1f41 | 1491 | if (IS_ERR(ablkctx->sw_cipher)) { |
7cea6d3e | 1492 | pr_err("failed to allocate fallback for %s\n", alg->base.cra_name); |
b8fd1f41 HJ |
1493 | return PTR_ERR(ablkctx->sw_cipher); |
1494 | } | |
7cea6d3e AB |
1495 | crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx)); |
1496 | return chcr_device_init(ctx); | |
b8fd1f41 HJ |
1497 | } |
1498 | ||
1499 | ||
7cea6d3e | 1500 | static void chcr_exit_tfm(struct crypto_skcipher *tfm) |
b8fd1f41 | 1501 | { |
7cea6d3e | 1502 | struct chcr_context *ctx = crypto_skcipher_ctx(tfm); |
b8fd1f41 HJ |
1503 | struct ablk_ctx *ablkctx = ABLK_CTX(ctx); |
1504 | ||
28874f26 | 1505 | crypto_free_sync_skcipher(ablkctx->sw_cipher); |
b8fd1f41 HJ |
1506 | } |
1507 | ||
324429d7 HS |
1508 | static int get_alg_config(struct algo_param *params, |
1509 | unsigned int auth_size) | |
1510 | { | |
1511 | switch (auth_size) { | |
1512 | case SHA1_DIGEST_SIZE: | |
1513 | params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_160; | |
1514 | params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA1; | |
1515 | params->result_size = SHA1_DIGEST_SIZE; | |
1516 | break; | |
1517 | case SHA224_DIGEST_SIZE: | |
1518 | params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256; | |
1519 | params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA224; | |
1520 | params->result_size = SHA256_DIGEST_SIZE; | |
1521 | break; | |
1522 | case SHA256_DIGEST_SIZE: | |
1523 | params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256; | |
1524 | params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA256; | |
1525 | params->result_size = SHA256_DIGEST_SIZE; | |
1526 | break; | |
1527 | case SHA384_DIGEST_SIZE: | |
1528 | params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512; | |
1529 | params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_384; | |
1530 | params->result_size = SHA512_DIGEST_SIZE; | |
1531 | break; | |
1532 | case SHA512_DIGEST_SIZE: | |
1533 | params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512; | |
1534 | params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_512; | |
1535 | params->result_size = SHA512_DIGEST_SIZE; | |
1536 | break; | |
1537 | default: | |
1538 | pr_err("chcr : ERROR, unsupported digest size\n"); | |
1539 | return -EINVAL; | |
1540 | } | |
1541 | return 0; | |
1542 | } | |
1543 | ||
e7922729 | 1544 | static inline void chcr_free_shash(struct crypto_shash *base_hash) |
324429d7 | 1545 | { |
e7922729 | 1546 | crypto_free_shash(base_hash); |
324429d7 HS |
1547 | } |
1548 | ||
1549 | /** | |
358961d1 | 1550 | * create_hash_wr - Create hash work request |
324429d7 HS |
1551 | * @req - Cipher req base |
1552 | */ | |
358961d1 | 1553 | static struct sk_buff *create_hash_wr(struct ahash_request *req, |
2debd332 | 1554 | struct hash_wr_param *param) |
324429d7 HS |
1555 | { |
1556 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
1557 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); | |
567be3a5 AS |
1558 | struct chcr_context *ctx = h_ctx(tfm); |
1559 | struct hmac_ctx *hmacctx = HMAC_CTX(ctx); | |
324429d7 | 1560 | struct sk_buff *skb = NULL; |
567be3a5 | 1561 | struct uld_ctx *u_ctx = ULD_CTX(ctx); |
358961d1 | 1562 | struct chcr_wr *chcr_req; |
2f47d580 | 1563 | struct ulptx_sgl *ulptx; |
5110e655 HJ |
1564 | unsigned int nents = 0, transhdr_len; |
1565 | unsigned int temp = 0; | |
358961d1 HJ |
1566 | gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : |
1567 | GFP_ATOMIC; | |
2f47d580 HJ |
1568 | struct adapter *adap = padap(h_ctx(tfm)->dev); |
1569 | int error = 0; | |
567be3a5 | 1570 | unsigned int rx_channel_id = req_ctx->rxqidx / ctx->rxq_perchan; |
324429d7 | 1571 | |
5110e655 HJ |
1572 | transhdr_len = HASH_TRANSHDR_SIZE(param->kctx_len); |
1573 | req_ctx->hctx_wr.imm = (transhdr_len + param->bfr_len + | |
1574 | param->sg_len) <= SGE_MAX_WR_LEN; | |
1575 | nents = sg_nents_xlen(req_ctx->hctx_wr.srcsg, param->sg_len, | |
1576 | CHCR_SRC_SG_SIZE, req_ctx->hctx_wr.src_ofst); | |
2f47d580 | 1577 | nents += param->bfr_len ? 1 : 0; |
5110e655 HJ |
1578 | transhdr_len += req_ctx->hctx_wr.imm ? roundup(param->bfr_len + |
1579 | param->sg_len, 16) : (sgl_len(nents) * 8); | |
125d01ca | 1580 | transhdr_len = roundup(transhdr_len, 16); |
2f47d580 | 1581 | |
5110e655 | 1582 | skb = alloc_skb(transhdr_len, flags); |
324429d7 | 1583 | if (!skb) |
2f47d580 | 1584 | return ERR_PTR(-ENOMEM); |
de77b966 | 1585 | chcr_req = __skb_put_zero(skb, transhdr_len); |
324429d7 | 1586 | |
358961d1 | 1587 | chcr_req->sec_cpl.op_ivinsrtofst = |
567be3a5 AS |
1588 | FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 0); |
1589 | ||
358961d1 | 1590 | chcr_req->sec_cpl.pldlen = htonl(param->bfr_len + param->sg_len); |
324429d7 | 1591 | |
358961d1 | 1592 | chcr_req->sec_cpl.aadstart_cipherstop_hi = |
324429d7 | 1593 | FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, 0, 0); |
358961d1 | 1594 | chcr_req->sec_cpl.cipherstop_lo_authinsert = |
324429d7 | 1595 | FILL_SEC_CPL_AUTHINSERT(0, 1, 0, 0); |
358961d1 | 1596 | chcr_req->sec_cpl.seqno_numivs = |
324429d7 | 1597 | FILL_SEC_CPL_SCMD0_SEQNO(0, 0, 0, param->alg_prm.auth_mode, |
358961d1 | 1598 | param->opad_needed, 0); |
324429d7 | 1599 | |
358961d1 | 1600 | chcr_req->sec_cpl.ivgen_hdrlen = |
324429d7 HS |
1601 | FILL_SEC_CPL_IVGEN_HDRLEN(param->last, param->more, 0, 1, 0, 0); |
1602 | ||
358961d1 HJ |
1603 | memcpy(chcr_req->key_ctx.key, req_ctx->partial_hash, |
1604 | param->alg_prm.result_size); | |
324429d7 HS |
1605 | |
1606 | if (param->opad_needed) | |
358961d1 HJ |
1607 | memcpy(chcr_req->key_ctx.key + |
1608 | ((param->alg_prm.result_size <= 32) ? 32 : | |
1609 | CHCR_HASH_MAX_DIGEST_SIZE), | |
324429d7 HS |
1610 | hmacctx->opad, param->alg_prm.result_size); |
1611 | ||
358961d1 | 1612 | chcr_req->key_ctx.ctx_hdr = FILL_KEY_CTX_HDR(CHCR_KEYCTX_NO_KEY, |
324429d7 HS |
1613 | param->alg_prm.mk_size, 0, |
1614 | param->opad_needed, | |
5110e655 | 1615 | ((param->kctx_len + |
358961d1 HJ |
1616 | sizeof(chcr_req->key_ctx)) >> 4)); |
1617 | chcr_req->sec_cpl.scmd1 = cpu_to_be64((u64)param->scmd1); | |
5110e655 | 1618 | ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + param->kctx_len + |
2f47d580 HJ |
1619 | DUMMY_BYTES); |
1620 | if (param->bfr_len != 0) { | |
5110e655 HJ |
1621 | req_ctx->hctx_wr.dma_addr = |
1622 | dma_map_single(&u_ctx->lldi.pdev->dev, req_ctx->reqbfr, | |
1623 | param->bfr_len, DMA_TO_DEVICE); | |
2f47d580 | 1624 | if (dma_mapping_error(&u_ctx->lldi.pdev->dev, |
5110e655 | 1625 | req_ctx->hctx_wr. dma_addr)) { |
2f47d580 HJ |
1626 | error = -ENOMEM; |
1627 | goto err; | |
1628 | } | |
5110e655 | 1629 | req_ctx->hctx_wr.dma_len = param->bfr_len; |
2f47d580 | 1630 | } else { |
5110e655 | 1631 | req_ctx->hctx_wr.dma_addr = 0; |
2f47d580 HJ |
1632 | } |
1633 | chcr_add_hash_src_ent(req, ulptx, param); | |
1634 | /* Request upto max wr size */ | |
5110e655 HJ |
1635 | temp = param->kctx_len + DUMMY_BYTES + (req_ctx->hctx_wr.imm ? |
1636 | (param->sg_len + param->bfr_len) : 0); | |
ee0863ba | 1637 | atomic_inc(&adap->chcr_stats.digest_rqst); |
5110e655 HJ |
1638 | create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->hctx_wr.imm, |
1639 | param->hash_size, transhdr_len, | |
2f47d580 | 1640 | temp, 0); |
5110e655 | 1641 | req_ctx->hctx_wr.skb = skb; |
324429d7 | 1642 | return skb; |
2f47d580 HJ |
1643 | err: |
1644 | kfree_skb(skb); | |
1645 | return ERR_PTR(error); | |
324429d7 HS |
1646 | } |
1647 | ||
1648 | static int chcr_ahash_update(struct ahash_request *req) | |
1649 | { | |
1650 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
1651 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); | |
567be3a5 AS |
1652 | struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm)); |
1653 | struct chcr_context *ctx = h_ctx(rtfm); | |
fef4912b | 1654 | struct chcr_dev *dev = h_ctx(rtfm)->dev; |
324429d7 HS |
1655 | struct sk_buff *skb; |
1656 | u8 remainder = 0, bs; | |
1657 | unsigned int nbytes = req->nbytes; | |
1658 | struct hash_wr_param params; | |
567be3a5 AS |
1659 | int error; |
1660 | unsigned int cpu; | |
1661 | ||
1662 | cpu = get_cpu(); | |
1663 | req_ctx->txqidx = cpu % ctx->ntxq; | |
1664 | req_ctx->rxqidx = cpu % ctx->nrxq; | |
1665 | put_cpu(); | |
324429d7 HS |
1666 | |
1667 | bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); | |
324429d7 | 1668 | |
44fce12a HJ |
1669 | if (nbytes + req_ctx->reqlen >= bs) { |
1670 | remainder = (nbytes + req_ctx->reqlen) % bs; | |
1671 | nbytes = nbytes + req_ctx->reqlen - remainder; | |
324429d7 | 1672 | } else { |
44fce12a HJ |
1673 | sg_pcopy_to_buffer(req->src, sg_nents(req->src), req_ctx->reqbfr |
1674 | + req_ctx->reqlen, nbytes, 0); | |
1675 | req_ctx->reqlen += nbytes; | |
324429d7 HS |
1676 | return 0; |
1677 | } | |
fef4912b HJ |
1678 | error = chcr_inc_wrcount(dev); |
1679 | if (error) | |
1680 | return -ENXIO; | |
1681 | /* Detach state for CHCR means lldi or padap is freed. Increasing | |
1682 | * inflight count for dev guarantees that lldi and padap is valid | |
1683 | */ | |
1684 | if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], | |
567be3a5 AS |
1685 | req_ctx->txqidx) && |
1686 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) { | |
fef4912b HJ |
1687 | error = -ENOSPC; |
1688 | goto err; | |
fef4912b HJ |
1689 | } |
1690 | ||
5110e655 | 1691 | chcr_init_hctx_per_wr(req_ctx); |
2f47d580 | 1692 | error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); |
fef4912b HJ |
1693 | if (error) { |
1694 | error = -ENOMEM; | |
1695 | goto err; | |
1696 | } | |
5110e655 HJ |
1697 | get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); |
1698 | params.kctx_len = roundup(params.alg_prm.result_size, 16); | |
1699 | params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, | |
1700 | HASH_SPACE_LEFT(params.kctx_len), 0); | |
1701 | if (params.sg_len > req->nbytes) | |
1702 | params.sg_len = req->nbytes; | |
1703 | params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) - | |
1704 | req_ctx->reqlen; | |
324429d7 HS |
1705 | params.opad_needed = 0; |
1706 | params.more = 1; | |
1707 | params.last = 0; | |
44fce12a | 1708 | params.bfr_len = req_ctx->reqlen; |
324429d7 | 1709 | params.scmd1 = 0; |
5110e655 HJ |
1710 | req_ctx->hctx_wr.srcsg = req->src; |
1711 | ||
1712 | params.hash_size = params.alg_prm.result_size; | |
324429d7 | 1713 | req_ctx->data_len += params.sg_len + params.bfr_len; |
358961d1 | 1714 | skb = create_hash_wr(req, ¶ms); |
2f47d580 HJ |
1715 | if (IS_ERR(skb)) { |
1716 | error = PTR_ERR(skb); | |
1717 | goto unmap; | |
1718 | } | |
324429d7 | 1719 | |
5110e655 | 1720 | req_ctx->hctx_wr.processed += params.sg_len; |
44fce12a | 1721 | if (remainder) { |
44fce12a | 1722 | /* Swap buffers */ |
abfa2b37 | 1723 | swap(req_ctx->reqbfr, req_ctx->skbfr); |
324429d7 | 1724 | sg_pcopy_to_buffer(req->src, sg_nents(req->src), |
44fce12a | 1725 | req_ctx->reqbfr, remainder, req->nbytes - |
324429d7 | 1726 | remainder); |
44fce12a HJ |
1727 | } |
1728 | req_ctx->reqlen = remainder; | |
324429d7 | 1729 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1730 | set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx); |
324429d7 | 1731 | chcr_send_wr(skb); |
567be3a5 | 1732 | return -EINPROGRESS; |
2f47d580 HJ |
1733 | unmap: |
1734 | chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); | |
fef4912b HJ |
1735 | err: |
1736 | chcr_dec_wrcount(dev); | |
2f47d580 | 1737 | return error; |
324429d7 HS |
1738 | } |
1739 | ||
1740 | static void create_last_hash_block(char *bfr_ptr, unsigned int bs, u64 scmd1) | |
1741 | { | |
1742 | memset(bfr_ptr, 0, bs); | |
1743 | *bfr_ptr = 0x80; | |
1744 | if (bs == 64) | |
1745 | *(__be64 *)(bfr_ptr + 56) = cpu_to_be64(scmd1 << 3); | |
1746 | else | |
1747 | *(__be64 *)(bfr_ptr + 120) = cpu_to_be64(scmd1 << 3); | |
1748 | } | |
1749 | ||
1750 | static int chcr_ahash_final(struct ahash_request *req) | |
1751 | { | |
1752 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
1753 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); | |
fef4912b | 1754 | struct chcr_dev *dev = h_ctx(rtfm)->dev; |
324429d7 HS |
1755 | struct hash_wr_param params; |
1756 | struct sk_buff *skb; | |
567be3a5 AS |
1757 | struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm)); |
1758 | struct chcr_context *ctx = h_ctx(rtfm); | |
324429d7 | 1759 | u8 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); |
fef4912b | 1760 | int error = -EINVAL; |
567be3a5 AS |
1761 | unsigned int cpu; |
1762 | ||
1763 | cpu = get_cpu(); | |
1764 | req_ctx->txqidx = cpu % ctx->ntxq; | |
1765 | req_ctx->rxqidx = cpu % ctx->nrxq; | |
1766 | put_cpu(); | |
fef4912b HJ |
1767 | |
1768 | error = chcr_inc_wrcount(dev); | |
1769 | if (error) | |
1770 | return -ENXIO; | |
324429d7 | 1771 | |
5110e655 | 1772 | chcr_init_hctx_per_wr(req_ctx); |
324429d7 HS |
1773 | if (is_hmac(crypto_ahash_tfm(rtfm))) |
1774 | params.opad_needed = 1; | |
1775 | else | |
1776 | params.opad_needed = 0; | |
1777 | params.sg_len = 0; | |
5110e655 | 1778 | req_ctx->hctx_wr.isfinal = 1; |
324429d7 | 1779 | get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); |
5110e655 HJ |
1780 | params.kctx_len = roundup(params.alg_prm.result_size, 16); |
1781 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
1782 | params.opad_needed = 1; | |
1783 | params.kctx_len *= 2; | |
1784 | } else { | |
1785 | params.opad_needed = 0; | |
1786 | } | |
1787 | ||
1788 | req_ctx->hctx_wr.result = 1; | |
44fce12a | 1789 | params.bfr_len = req_ctx->reqlen; |
324429d7 | 1790 | req_ctx->data_len += params.bfr_len + params.sg_len; |
5110e655 | 1791 | req_ctx->hctx_wr.srcsg = req->src; |
44fce12a HJ |
1792 | if (req_ctx->reqlen == 0) { |
1793 | create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len); | |
324429d7 HS |
1794 | params.last = 0; |
1795 | params.more = 1; | |
1796 | params.scmd1 = 0; | |
1797 | params.bfr_len = bs; | |
1798 | ||
1799 | } else { | |
1800 | params.scmd1 = req_ctx->data_len; | |
1801 | params.last = 1; | |
1802 | params.more = 0; | |
1803 | } | |
5110e655 | 1804 | params.hash_size = crypto_ahash_digestsize(rtfm); |
358961d1 | 1805 | skb = create_hash_wr(req, ¶ms); |
fef4912b HJ |
1806 | if (IS_ERR(skb)) { |
1807 | error = PTR_ERR(skb); | |
1808 | goto err; | |
1809 | } | |
5110e655 | 1810 | req_ctx->reqlen = 0; |
324429d7 | 1811 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1812 | set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx); |
324429d7 HS |
1813 | chcr_send_wr(skb); |
1814 | return -EINPROGRESS; | |
fef4912b HJ |
1815 | err: |
1816 | chcr_dec_wrcount(dev); | |
1817 | return error; | |
324429d7 HS |
1818 | } |
1819 | ||
1820 | static int chcr_ahash_finup(struct ahash_request *req) | |
1821 | { | |
1822 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
1823 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); | |
fef4912b | 1824 | struct chcr_dev *dev = h_ctx(rtfm)->dev; |
567be3a5 AS |
1825 | struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm)); |
1826 | struct chcr_context *ctx = h_ctx(rtfm); | |
324429d7 HS |
1827 | struct sk_buff *skb; |
1828 | struct hash_wr_param params; | |
1829 | u8 bs; | |
567be3a5 AS |
1830 | int error; |
1831 | unsigned int cpu; | |
1832 | ||
1833 | cpu = get_cpu(); | |
1834 | req_ctx->txqidx = cpu % ctx->ntxq; | |
1835 | req_ctx->rxqidx = cpu % ctx->nrxq; | |
1836 | put_cpu(); | |
324429d7 HS |
1837 | |
1838 | bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); | |
fef4912b HJ |
1839 | error = chcr_inc_wrcount(dev); |
1840 | if (error) | |
1841 | return -ENXIO; | |
324429d7 HS |
1842 | |
1843 | if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], | |
567be3a5 AS |
1844 | req_ctx->txqidx) && |
1845 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) { | |
fef4912b HJ |
1846 | error = -ENOSPC; |
1847 | goto err; | |
324429d7 | 1848 | } |
5110e655 HJ |
1849 | chcr_init_hctx_per_wr(req_ctx); |
1850 | error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); | |
fef4912b HJ |
1851 | if (error) { |
1852 | error = -ENOMEM; | |
1853 | goto err; | |
1854 | } | |
324429d7 | 1855 | |
5110e655 HJ |
1856 | get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); |
1857 | params.kctx_len = roundup(params.alg_prm.result_size, 16); | |
1858 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
1859 | params.kctx_len *= 2; | |
324429d7 | 1860 | params.opad_needed = 1; |
5110e655 | 1861 | } else { |
324429d7 | 1862 | params.opad_needed = 0; |
5110e655 | 1863 | } |
324429d7 | 1864 | |
5110e655 HJ |
1865 | params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, |
1866 | HASH_SPACE_LEFT(params.kctx_len), 0); | |
1867 | if (params.sg_len < req->nbytes) { | |
1868 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
1869 | params.kctx_len /= 2; | |
1870 | params.opad_needed = 0; | |
1871 | } | |
1872 | params.last = 0; | |
1873 | params.more = 1; | |
1874 | params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) | |
1875 | - req_ctx->reqlen; | |
1876 | params.hash_size = params.alg_prm.result_size; | |
1877 | params.scmd1 = 0; | |
1878 | } else { | |
1879 | params.last = 1; | |
1880 | params.more = 0; | |
1881 | params.sg_len = req->nbytes; | |
1882 | params.hash_size = crypto_ahash_digestsize(rtfm); | |
1883 | params.scmd1 = req_ctx->data_len + req_ctx->reqlen + | |
1884 | params.sg_len; | |
1885 | } | |
44fce12a | 1886 | params.bfr_len = req_ctx->reqlen; |
324429d7 | 1887 | req_ctx->data_len += params.bfr_len + params.sg_len; |
5110e655 HJ |
1888 | req_ctx->hctx_wr.result = 1; |
1889 | req_ctx->hctx_wr.srcsg = req->src; | |
44fce12a HJ |
1890 | if ((req_ctx->reqlen + req->nbytes) == 0) { |
1891 | create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len); | |
324429d7 HS |
1892 | params.last = 0; |
1893 | params.more = 1; | |
1894 | params.scmd1 = 0; | |
1895 | params.bfr_len = bs; | |
324429d7 | 1896 | } |
358961d1 | 1897 | skb = create_hash_wr(req, ¶ms); |
2f47d580 HJ |
1898 | if (IS_ERR(skb)) { |
1899 | error = PTR_ERR(skb); | |
1900 | goto unmap; | |
1901 | } | |
5110e655 HJ |
1902 | req_ctx->reqlen = 0; |
1903 | req_ctx->hctx_wr.processed += params.sg_len; | |
324429d7 | 1904 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1905 | set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx); |
324429d7 | 1906 | chcr_send_wr(skb); |
567be3a5 | 1907 | return -EINPROGRESS; |
2f47d580 HJ |
1908 | unmap: |
1909 | chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); | |
fef4912b HJ |
1910 | err: |
1911 | chcr_dec_wrcount(dev); | |
2f47d580 | 1912 | return error; |
324429d7 HS |
1913 | } |
1914 | ||
1915 | static int chcr_ahash_digest(struct ahash_request *req) | |
1916 | { | |
1917 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
1918 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); | |
fef4912b | 1919 | struct chcr_dev *dev = h_ctx(rtfm)->dev; |
567be3a5 AS |
1920 | struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm)); |
1921 | struct chcr_context *ctx = h_ctx(rtfm); | |
324429d7 HS |
1922 | struct sk_buff *skb; |
1923 | struct hash_wr_param params; | |
1924 | u8 bs; | |
567be3a5 AS |
1925 | int error; |
1926 | unsigned int cpu; | |
1927 | ||
1928 | cpu = get_cpu(); | |
1929 | req_ctx->txqidx = cpu % ctx->ntxq; | |
1930 | req_ctx->rxqidx = cpu % ctx->nrxq; | |
1931 | put_cpu(); | |
324429d7 HS |
1932 | |
1933 | rtfm->init(req); | |
1934 | bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); | |
fef4912b HJ |
1935 | error = chcr_inc_wrcount(dev); |
1936 | if (error) | |
1937 | return -ENXIO; | |
324429d7 | 1938 | |
324429d7 | 1939 | if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], |
567be3a5 AS |
1940 | req_ctx->txqidx) && |
1941 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) { | |
fef4912b HJ |
1942 | error = -ENOSPC; |
1943 | goto err; | |
324429d7 HS |
1944 | } |
1945 | ||
5110e655 | 1946 | chcr_init_hctx_per_wr(req_ctx); |
2f47d580 | 1947 | error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); |
fef4912b HJ |
1948 | if (error) { |
1949 | error = -ENOMEM; | |
1950 | goto err; | |
1951 | } | |
324429d7 | 1952 | |
324429d7 | 1953 | get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); |
5110e655 HJ |
1954 | params.kctx_len = roundup(params.alg_prm.result_size, 16); |
1955 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
1956 | params.kctx_len *= 2; | |
1957 | params.opad_needed = 1; | |
1958 | } else { | |
1959 | params.opad_needed = 0; | |
1960 | } | |
1961 | params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, | |
1962 | HASH_SPACE_LEFT(params.kctx_len), 0); | |
1963 | if (params.sg_len < req->nbytes) { | |
1964 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
1965 | params.kctx_len /= 2; | |
1966 | params.opad_needed = 0; | |
1967 | } | |
1968 | params.last = 0; | |
1969 | params.more = 1; | |
1970 | params.scmd1 = 0; | |
1971 | params.sg_len = rounddown(params.sg_len, bs); | |
1972 | params.hash_size = params.alg_prm.result_size; | |
1973 | } else { | |
1974 | params.sg_len = req->nbytes; | |
1975 | params.hash_size = crypto_ahash_digestsize(rtfm); | |
1976 | params.last = 1; | |
1977 | params.more = 0; | |
1978 | params.scmd1 = req->nbytes + req_ctx->data_len; | |
1979 | ||
1980 | } | |
1981 | params.bfr_len = 0; | |
1982 | req_ctx->hctx_wr.result = 1; | |
1983 | req_ctx->hctx_wr.srcsg = req->src; | |
324429d7 HS |
1984 | req_ctx->data_len += params.bfr_len + params.sg_len; |
1985 | ||
44fce12a HJ |
1986 | if (req->nbytes == 0) { |
1987 | create_last_hash_block(req_ctx->reqbfr, bs, 0); | |
324429d7 HS |
1988 | params.more = 1; |
1989 | params.bfr_len = bs; | |
1990 | } | |
1991 | ||
358961d1 | 1992 | skb = create_hash_wr(req, ¶ms); |
2f47d580 HJ |
1993 | if (IS_ERR(skb)) { |
1994 | error = PTR_ERR(skb); | |
1995 | goto unmap; | |
1996 | } | |
5110e655 | 1997 | req_ctx->hctx_wr.processed += params.sg_len; |
324429d7 | 1998 | skb->dev = u_ctx->lldi.ports[0]; |
567be3a5 | 1999 | set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx); |
324429d7 | 2000 | chcr_send_wr(skb); |
567be3a5 | 2001 | return -EINPROGRESS; |
2f47d580 HJ |
2002 | unmap: |
2003 | chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); | |
fef4912b HJ |
2004 | err: |
2005 | chcr_dec_wrcount(dev); | |
2f47d580 | 2006 | return error; |
324429d7 HS |
2007 | } |
2008 | ||
6f76672b HJ |
2009 | static int chcr_ahash_continue(struct ahash_request *req) |
2010 | { | |
2011 | struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); | |
2012 | struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr; | |
2013 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); | |
567be3a5 AS |
2014 | struct chcr_context *ctx = h_ctx(rtfm); |
2015 | struct uld_ctx *u_ctx = ULD_CTX(ctx); | |
6f76672b HJ |
2016 | struct sk_buff *skb; |
2017 | struct hash_wr_param params; | |
2018 | u8 bs; | |
2019 | int error; | |
567be3a5 AS |
2020 | unsigned int cpu; |
2021 | ||
2022 | cpu = get_cpu(); | |
2023 | reqctx->txqidx = cpu % ctx->ntxq; | |
2024 | reqctx->rxqidx = cpu % ctx->nrxq; | |
2025 | put_cpu(); | |
6f76672b HJ |
2026 | |
2027 | bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); | |
6f76672b HJ |
2028 | get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); |
2029 | params.kctx_len = roundup(params.alg_prm.result_size, 16); | |
2030 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
2031 | params.kctx_len *= 2; | |
2032 | params.opad_needed = 1; | |
2033 | } else { | |
2034 | params.opad_needed = 0; | |
2035 | } | |
2036 | params.sg_len = chcr_hash_ent_in_wr(hctx_wr->srcsg, 0, | |
2037 | HASH_SPACE_LEFT(params.kctx_len), | |
2038 | hctx_wr->src_ofst); | |
2039 | if ((params.sg_len + hctx_wr->processed) > req->nbytes) | |
2040 | params.sg_len = req->nbytes - hctx_wr->processed; | |
2041 | if (!hctx_wr->result || | |
2042 | ((params.sg_len + hctx_wr->processed) < req->nbytes)) { | |
2043 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
2044 | params.kctx_len /= 2; | |
2045 | params.opad_needed = 0; | |
2046 | } | |
2047 | params.last = 0; | |
2048 | params.more = 1; | |
2049 | params.sg_len = rounddown(params.sg_len, bs); | |
2050 | params.hash_size = params.alg_prm.result_size; | |
2051 | params.scmd1 = 0; | |
2052 | } else { | |
2053 | params.last = 1; | |
2054 | params.more = 0; | |
2055 | params.hash_size = crypto_ahash_digestsize(rtfm); | |
2056 | params.scmd1 = reqctx->data_len + params.sg_len; | |
2057 | } | |
2058 | params.bfr_len = 0; | |
2059 | reqctx->data_len += params.sg_len; | |
2060 | skb = create_hash_wr(req, ¶ms); | |
2061 | if (IS_ERR(skb)) { | |
2062 | error = PTR_ERR(skb); | |
2063 | goto err; | |
2064 | } | |
2065 | hctx_wr->processed += params.sg_len; | |
2066 | skb->dev = u_ctx->lldi.ports[0]; | |
567be3a5 | 2067 | set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx); |
6f76672b HJ |
2068 | chcr_send_wr(skb); |
2069 | return 0; | |
2070 | err: | |
2071 | return error; | |
2072 | } | |
2073 | ||
2074 | static inline void chcr_handle_ahash_resp(struct ahash_request *req, | |
2075 | unsigned char *input, | |
2076 | int err) | |
2077 | { | |
2078 | struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); | |
2079 | struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr; | |
2080 | int digestsize, updated_digestsize; | |
2081 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); | |
2082 | struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm)); | |
fef4912b | 2083 | struct chcr_dev *dev = h_ctx(tfm)->dev; |
6f76672b HJ |
2084 | |
2085 | if (input == NULL) | |
2086 | goto out; | |
2087 | digestsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req)); | |
2088 | updated_digestsize = digestsize; | |
2089 | if (digestsize == SHA224_DIGEST_SIZE) | |
2090 | updated_digestsize = SHA256_DIGEST_SIZE; | |
2091 | else if (digestsize == SHA384_DIGEST_SIZE) | |
2092 | updated_digestsize = SHA512_DIGEST_SIZE; | |
2093 | ||
2094 | if (hctx_wr->dma_addr) { | |
2095 | dma_unmap_single(&u_ctx->lldi.pdev->dev, hctx_wr->dma_addr, | |
2096 | hctx_wr->dma_len, DMA_TO_DEVICE); | |
2097 | hctx_wr->dma_addr = 0; | |
2098 | } | |
2099 | if (hctx_wr->isfinal || ((hctx_wr->processed + reqctx->reqlen) == | |
2100 | req->nbytes)) { | |
2101 | if (hctx_wr->result == 1) { | |
2102 | hctx_wr->result = 0; | |
2103 | memcpy(req->result, input + sizeof(struct cpl_fw6_pld), | |
2104 | digestsize); | |
2105 | } else { | |
2106 | memcpy(reqctx->partial_hash, | |
2107 | input + sizeof(struct cpl_fw6_pld), | |
2108 | updated_digestsize); | |
2109 | ||
2110 | } | |
2111 | goto unmap; | |
2112 | } | |
2113 | memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld), | |
2114 | updated_digestsize); | |
2115 | ||
2116 | err = chcr_ahash_continue(req); | |
2117 | if (err) | |
2118 | goto unmap; | |
2119 | return; | |
2120 | unmap: | |
2121 | if (hctx_wr->is_sg_map) | |
2122 | chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); | |
2123 | ||
2124 | ||
2125 | out: | |
fef4912b | 2126 | chcr_dec_wrcount(dev); |
6f76672b HJ |
2127 | req->base.complete(&req->base, err); |
2128 | } | |
2129 | ||
2130 | /* | |
2131 | * chcr_handle_resp - Unmap the DMA buffers associated with the request | |
2132 | * @req: crypto request | |
2133 | */ | |
2134 | int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input, | |
2135 | int err) | |
2136 | { | |
2137 | struct crypto_tfm *tfm = req->tfm; | |
2138 | struct chcr_context *ctx = crypto_tfm_ctx(tfm); | |
2139 | struct adapter *adap = padap(ctx->dev); | |
2140 | ||
2141 | switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) { | |
2142 | case CRYPTO_ALG_TYPE_AEAD: | |
f31ba0f9 | 2143 | err = chcr_handle_aead_resp(aead_request_cast(req), input, err); |
6f76672b HJ |
2144 | break; |
2145 | ||
7cea6d3e AB |
2146 | case CRYPTO_ALG_TYPE_SKCIPHER: |
2147 | chcr_handle_cipher_resp(skcipher_request_cast(req), | |
6f76672b HJ |
2148 | input, err); |
2149 | break; | |
6f76672b HJ |
2150 | case CRYPTO_ALG_TYPE_AHASH: |
2151 | chcr_handle_ahash_resp(ahash_request_cast(req), input, err); | |
2152 | } | |
2153 | atomic_inc(&adap->chcr_stats.complete); | |
2154 | return err; | |
2155 | } | |
324429d7 HS |
2156 | static int chcr_ahash_export(struct ahash_request *areq, void *out) |
2157 | { | |
2158 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); | |
2159 | struct chcr_ahash_req_ctx *state = out; | |
2160 | ||
44fce12a | 2161 | state->reqlen = req_ctx->reqlen; |
324429d7 | 2162 | state->data_len = req_ctx->data_len; |
44fce12a | 2163 | memcpy(state->bfr1, req_ctx->reqbfr, req_ctx->reqlen); |
324429d7 HS |
2164 | memcpy(state->partial_hash, req_ctx->partial_hash, |
2165 | CHCR_HASH_MAX_DIGEST_SIZE); | |
5110e655 | 2166 | chcr_init_hctx_per_wr(state); |
fc6176a2 | 2167 | return 0; |
324429d7 HS |
2168 | } |
2169 | ||
2170 | static int chcr_ahash_import(struct ahash_request *areq, const void *in) | |
2171 | { | |
2172 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); | |
2173 | struct chcr_ahash_req_ctx *state = (struct chcr_ahash_req_ctx *)in; | |
2174 | ||
44fce12a | 2175 | req_ctx->reqlen = state->reqlen; |
324429d7 | 2176 | req_ctx->data_len = state->data_len; |
44fce12a HJ |
2177 | req_ctx->reqbfr = req_ctx->bfr1; |
2178 | req_ctx->skbfr = req_ctx->bfr2; | |
2179 | memcpy(req_ctx->bfr1, state->bfr1, CHCR_HASH_MAX_BLOCK_SIZE_128); | |
324429d7 HS |
2180 | memcpy(req_ctx->partial_hash, state->partial_hash, |
2181 | CHCR_HASH_MAX_DIGEST_SIZE); | |
5110e655 | 2182 | chcr_init_hctx_per_wr(req_ctx); |
324429d7 HS |
2183 | return 0; |
2184 | } | |
2185 | ||
2186 | static int chcr_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, | |
2187 | unsigned int keylen) | |
2188 | { | |
2f47d580 | 2189 | struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm)); |
324429d7 HS |
2190 | unsigned int digestsize = crypto_ahash_digestsize(tfm); |
2191 | unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); | |
2192 | unsigned int i, err = 0, updated_digestsize; | |
2193 | ||
e7922729 HJ |
2194 | SHASH_DESC_ON_STACK(shash, hmacctx->base_hash); |
2195 | ||
2196 | /* use the key to calculate the ipad and opad. ipad will sent with the | |
324429d7 HS |
2197 | * first request's data. opad will be sent with the final hash result |
2198 | * ipad in hmacctx->ipad and opad in hmacctx->opad location | |
2199 | */ | |
e7922729 | 2200 | shash->tfm = hmacctx->base_hash; |
324429d7 | 2201 | if (keylen > bs) { |
e7922729 | 2202 | err = crypto_shash_digest(shash, key, keylen, |
324429d7 HS |
2203 | hmacctx->ipad); |
2204 | if (err) | |
2205 | goto out; | |
2206 | keylen = digestsize; | |
2207 | } else { | |
2208 | memcpy(hmacctx->ipad, key, keylen); | |
2209 | } | |
2210 | memset(hmacctx->ipad + keylen, 0, bs - keylen); | |
2211 | memcpy(hmacctx->opad, hmacctx->ipad, bs); | |
2212 | ||
2213 | for (i = 0; i < bs / sizeof(int); i++) { | |
2214 | *((unsigned int *)(&hmacctx->ipad) + i) ^= IPAD_DATA; | |
2215 | *((unsigned int *)(&hmacctx->opad) + i) ^= OPAD_DATA; | |
2216 | } | |
2217 | ||
2218 | updated_digestsize = digestsize; | |
2219 | if (digestsize == SHA224_DIGEST_SIZE) | |
2220 | updated_digestsize = SHA256_DIGEST_SIZE; | |
2221 | else if (digestsize == SHA384_DIGEST_SIZE) | |
2222 | updated_digestsize = SHA512_DIGEST_SIZE; | |
e7922729 | 2223 | err = chcr_compute_partial_hash(shash, hmacctx->ipad, |
324429d7 HS |
2224 | hmacctx->ipad, digestsize); |
2225 | if (err) | |
2226 | goto out; | |
2227 | chcr_change_order(hmacctx->ipad, updated_digestsize); | |
2228 | ||
e7922729 | 2229 | err = chcr_compute_partial_hash(shash, hmacctx->opad, |
324429d7 HS |
2230 | hmacctx->opad, digestsize); |
2231 | if (err) | |
2232 | goto out; | |
2233 | chcr_change_order(hmacctx->opad, updated_digestsize); | |
2234 | out: | |
2235 | return err; | |
2236 | } | |
2237 | ||
7cea6d3e | 2238 | static int chcr_aes_xts_setkey(struct crypto_skcipher *cipher, const u8 *key, |
324429d7 HS |
2239 | unsigned int key_len) |
2240 | { | |
2f47d580 | 2241 | struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher)); |
324429d7 | 2242 | unsigned short context_size = 0; |
b8fd1f41 | 2243 | int err; |
324429d7 | 2244 | |
b8fd1f41 HJ |
2245 | err = chcr_cipher_fallback_setkey(cipher, key, key_len); |
2246 | if (err) | |
2247 | goto badkey_err; | |
cc1b156d HJ |
2248 | |
2249 | memcpy(ablkctx->key, key, key_len); | |
2250 | ablkctx->enckey_len = key_len; | |
2251 | get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, key_len << 2); | |
2252 | context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + key_len) >> 4; | |
2253 | ablkctx->key_ctx_hdr = | |
2254 | FILL_KEY_CTX_HDR((key_len == AES_KEYSIZE_256) ? | |
2255 | CHCR_KEYCTX_CIPHER_KEY_SIZE_128 : | |
2256 | CHCR_KEYCTX_CIPHER_KEY_SIZE_256, | |
2257 | CHCR_KEYCTX_NO_KEY, 1, | |
2258 | 0, context_size); | |
2259 | ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_XTS; | |
2260 | return 0; | |
b8fd1f41 | 2261 | badkey_err: |
b8fd1f41 HJ |
2262 | ablkctx->enckey_len = 0; |
2263 | ||
2264 | return err; | |
324429d7 HS |
2265 | } |
2266 | ||
2267 | static int chcr_sha_init(struct ahash_request *areq) | |
2268 | { | |
2269 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); | |
2270 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); | |
2271 | int digestsize = crypto_ahash_digestsize(tfm); | |
2272 | ||
2273 | req_ctx->data_len = 0; | |
44fce12a HJ |
2274 | req_ctx->reqlen = 0; |
2275 | req_ctx->reqbfr = req_ctx->bfr1; | |
2276 | req_ctx->skbfr = req_ctx->bfr2; | |
324429d7 | 2277 | copy_hash_init_values(req_ctx->partial_hash, digestsize); |
5110e655 | 2278 | |
324429d7 HS |
2279 | return 0; |
2280 | } | |
2281 | ||
2282 | static int chcr_sha_cra_init(struct crypto_tfm *tfm) | |
2283 | { | |
2284 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), | |
2285 | sizeof(struct chcr_ahash_req_ctx)); | |
2286 | return chcr_device_init(crypto_tfm_ctx(tfm)); | |
2287 | } | |
2288 | ||
2289 | static int chcr_hmac_init(struct ahash_request *areq) | |
2290 | { | |
2291 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); | |
2292 | struct crypto_ahash *rtfm = crypto_ahash_reqtfm(areq); | |
2f47d580 | 2293 | struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(rtfm)); |
324429d7 HS |
2294 | unsigned int digestsize = crypto_ahash_digestsize(rtfm); |
2295 | unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); | |
2296 | ||
2297 | chcr_sha_init(areq); | |
2298 | req_ctx->data_len = bs; | |
2299 | if (is_hmac(crypto_ahash_tfm(rtfm))) { | |
2300 | if (digestsize == SHA224_DIGEST_SIZE) | |
2301 | memcpy(req_ctx->partial_hash, hmacctx->ipad, | |
2302 | SHA256_DIGEST_SIZE); | |
2303 | else if (digestsize == SHA384_DIGEST_SIZE) | |
2304 | memcpy(req_ctx->partial_hash, hmacctx->ipad, | |
2305 | SHA512_DIGEST_SIZE); | |
2306 | else | |
2307 | memcpy(req_ctx->partial_hash, hmacctx->ipad, | |
2308 | digestsize); | |
2309 | } | |
2310 | return 0; | |
2311 | } | |
2312 | ||
2313 | static int chcr_hmac_cra_init(struct crypto_tfm *tfm) | |
2314 | { | |
2315 | struct chcr_context *ctx = crypto_tfm_ctx(tfm); | |
2316 | struct hmac_ctx *hmacctx = HMAC_CTX(ctx); | |
2317 | unsigned int digestsize = | |
2318 | crypto_ahash_digestsize(__crypto_ahash_cast(tfm)); | |
2319 | ||
2320 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), | |
2321 | sizeof(struct chcr_ahash_req_ctx)); | |
e7922729 HJ |
2322 | hmacctx->base_hash = chcr_alloc_shash(digestsize); |
2323 | if (IS_ERR(hmacctx->base_hash)) | |
2324 | return PTR_ERR(hmacctx->base_hash); | |
324429d7 HS |
2325 | return chcr_device_init(crypto_tfm_ctx(tfm)); |
2326 | } | |
2327 | ||
324429d7 HS |
2328 | static void chcr_hmac_cra_exit(struct crypto_tfm *tfm) |
2329 | { | |
2330 | struct chcr_context *ctx = crypto_tfm_ctx(tfm); | |
2331 | struct hmac_ctx *hmacctx = HMAC_CTX(ctx); | |
2332 | ||
e7922729 HJ |
2333 | if (hmacctx->base_hash) { |
2334 | chcr_free_shash(hmacctx->base_hash); | |
2335 | hmacctx->base_hash = NULL; | |
324429d7 HS |
2336 | } |
2337 | } | |
2338 | ||
4262c98a HJ |
2339 | inline void chcr_aead_common_exit(struct aead_request *req) |
2340 | { | |
2341 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2342 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2343 | struct uld_ctx *u_ctx = ULD_CTX(a_ctx(tfm)); | |
2344 | ||
2345 | chcr_aead_dma_unmap(&u_ctx->lldi.pdev->dev, req, reqctx->op); | |
2346 | } | |
2347 | ||
2348 | static int chcr_aead_common_init(struct aead_request *req) | |
2debd332 | 2349 | { |
2f47d580 HJ |
2350 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); |
2351 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); | |
2352 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2f47d580 | 2353 | unsigned int authsize = crypto_aead_authsize(tfm); |
4262c98a | 2354 | int error = -EINVAL; |
2debd332 | 2355 | |
2f47d580 HJ |
2356 | /* validate key size */ |
2357 | if (aeadctx->enckey_len == 0) | |
2358 | goto err; | |
4262c98a | 2359 | if (reqctx->op && req->cryptlen < authsize) |
2f47d580 | 2360 | goto err; |
4262c98a HJ |
2361 | if (reqctx->b0_len) |
2362 | reqctx->scratch_pad = reqctx->iv + IV; | |
2363 | else | |
2364 | reqctx->scratch_pad = NULL; | |
2365 | ||
2f47d580 | 2366 | error = chcr_aead_dma_map(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req, |
4262c98a | 2367 | reqctx->op); |
2f47d580 HJ |
2368 | if (error) { |
2369 | error = -ENOMEM; | |
2370 | goto err; | |
2371 | } | |
1f479e4c | 2372 | |
2f47d580 HJ |
2373 | return 0; |
2374 | err: | |
2375 | return error; | |
2debd332 | 2376 | } |
2f47d580 HJ |
2377 | |
2378 | static int chcr_aead_need_fallback(struct aead_request *req, int dst_nents, | |
0e93708d HJ |
2379 | int aadmax, int wrlen, |
2380 | unsigned short op_type) | |
2381 | { | |
2382 | unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req)); | |
2383 | ||
2384 | if (((req->cryptlen - (op_type ? authsize : 0)) == 0) || | |
2f47d580 | 2385 | dst_nents > MAX_DSGL_ENT || |
0e93708d | 2386 | (req->assoclen > aadmax) || |
2f47d580 | 2387 | (wrlen > SGE_MAX_WR_LEN)) |
0e93708d HJ |
2388 | return 1; |
2389 | return 0; | |
2390 | } | |
2debd332 | 2391 | |
0e93708d HJ |
2392 | static int chcr_aead_fallback(struct aead_request *req, unsigned short op_type) |
2393 | { | |
2394 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2f47d580 | 2395 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
0e93708d HJ |
2396 | struct aead_request *subreq = aead_request_ctx(req); |
2397 | ||
2398 | aead_request_set_tfm(subreq, aeadctx->sw_cipher); | |
2399 | aead_request_set_callback(subreq, req->base.flags, | |
2400 | req->base.complete, req->base.data); | |
4262c98a | 2401 | aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen, |
0e93708d | 2402 | req->iv); |
fc6176a2 | 2403 | aead_request_set_ad(subreq, req->assoclen); |
0e93708d HJ |
2404 | return op_type ? crypto_aead_decrypt(subreq) : |
2405 | crypto_aead_encrypt(subreq); | |
2406 | } | |
2debd332 HJ |
2407 | |
2408 | static struct sk_buff *create_authenc_wr(struct aead_request *req, | |
2409 | unsigned short qid, | |
4262c98a | 2410 | int size) |
2debd332 HJ |
2411 | { |
2412 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
567be3a5 AS |
2413 | struct chcr_context *ctx = a_ctx(tfm); |
2414 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx); | |
2debd332 HJ |
2415 | struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx); |
2416 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2417 | struct sk_buff *skb = NULL; | |
2418 | struct chcr_wr *chcr_req; | |
2419 | struct cpl_rx_phys_dsgl *phys_cpl; | |
2f47d580 HJ |
2420 | struct ulptx_sgl *ulptx; |
2421 | unsigned int transhdr_len; | |
3d64bd67 | 2422 | unsigned int dst_size = 0, temp, subtype = get_aead_subtype(tfm); |
1f479e4c | 2423 | unsigned int kctx_len = 0, dnents, snents; |
2debd332 | 2424 | unsigned int authsize = crypto_aead_authsize(tfm); |
2f47d580 | 2425 | int error = -EINVAL; |
1f479e4c | 2426 | u8 *ivptr; |
2debd332 HJ |
2427 | int null = 0; |
2428 | gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : | |
2429 | GFP_ATOMIC; | |
567be3a5 AS |
2430 | struct adapter *adap = padap(ctx->dev); |
2431 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; | |
2debd332 | 2432 | |
2f47d580 HJ |
2433 | if (req->cryptlen == 0) |
2434 | return NULL; | |
2debd332 | 2435 | |
4262c98a HJ |
2436 | reqctx->b0_len = 0; |
2437 | error = chcr_aead_common_init(req); | |
2438 | if (error) | |
2439 | return ERR_PTR(error); | |
2440 | ||
3d64bd67 | 2441 | if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL || |
4262c98a | 2442 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) { |
2debd332 | 2443 | null = 1; |
2debd332 | 2444 | } |
1f479e4c HJ |
2445 | dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen + |
2446 | (reqctx->op ? -authsize : authsize), CHCR_DST_SG_SIZE, 0); | |
5abc8db0 | 2447 | dnents += MIN_AUTH_SG; // For IV |
1f479e4c HJ |
2448 | snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen, |
2449 | CHCR_SRC_SG_SIZE, 0); | |
2f47d580 | 2450 | dst_size = get_space_for_phys_dsgl(dnents); |
ff462ddf | 2451 | kctx_len = (KEY_CONTEXT_CTX_LEN_G(ntohl(aeadctx->key_ctx_hdr)) << 4) |
2debd332 HJ |
2452 | - sizeof(chcr_req->key_ctx); |
2453 | transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size); | |
1f479e4c | 2454 | reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) < |
2f47d580 | 2455 | SGE_MAX_WR_LEN; |
1f479e4c HJ |
2456 | temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16) |
2457 | : (sgl_len(snents) * 8); | |
2f47d580 | 2458 | transhdr_len += temp; |
125d01ca | 2459 | transhdr_len = roundup(transhdr_len, 16); |
2f47d580 HJ |
2460 | |
2461 | if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE, | |
4262c98a | 2462 | transhdr_len, reqctx->op)) { |
ee0863ba | 2463 | atomic_inc(&adap->chcr_stats.fallback); |
4262c98a HJ |
2464 | chcr_aead_common_exit(req); |
2465 | return ERR_PTR(chcr_aead_fallback(req, reqctx->op)); | |
0e93708d | 2466 | } |
1f479e4c | 2467 | skb = alloc_skb(transhdr_len, flags); |
5fe8c711 HJ |
2468 | if (!skb) { |
2469 | error = -ENOMEM; | |
2debd332 | 2470 | goto err; |
5fe8c711 | 2471 | } |
2debd332 | 2472 | |
de77b966 | 2473 | chcr_req = __skb_put_zero(skb, transhdr_len); |
2debd332 | 2474 | |
4262c98a | 2475 | temp = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize; |
2debd332 HJ |
2476 | |
2477 | /* | |
2478 | * Input order is AAD,IV and Payload. where IV should be included as | |
2479 | * the part of authdata. All other fields should be filled according | |
2480 | * to the hardware spec | |
2481 | */ | |
2482 | chcr_req->sec_cpl.op_ivinsrtofst = | |
567be3a5 | 2483 | FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1); |
1f479e4c | 2484 | chcr_req->sec_cpl.pldlen = htonl(req->assoclen + IV + req->cryptlen); |
2debd332 | 2485 | chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI( |
1f479e4c HJ |
2486 | null ? 0 : 1 + IV, |
2487 | null ? 0 : IV + req->assoclen, | |
2488 | req->assoclen + IV + 1, | |
2f47d580 | 2489 | (temp & 0x1F0) >> 4); |
2debd332 | 2490 | chcr_req->sec_cpl.cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT( |
2f47d580 | 2491 | temp & 0xF, |
1f479e4c | 2492 | null ? 0 : req->assoclen + IV + 1, |
2f47d580 | 2493 | temp, temp); |
3d64bd67 HJ |
2494 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL || |
2495 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA) | |
2496 | temp = CHCR_SCMD_CIPHER_MODE_AES_CTR; | |
2497 | else | |
2498 | temp = CHCR_SCMD_CIPHER_MODE_AES_CBC; | |
4262c98a HJ |
2499 | chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, |
2500 | (reqctx->op == CHCR_ENCRYPT_OP) ? 1 : 0, | |
3d64bd67 | 2501 | temp, |
2debd332 | 2502 | actx->auth_mode, aeadctx->hmac_ctrl, |
2f47d580 | 2503 | IV >> 1); |
2debd332 | 2504 | chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, |
2f47d580 | 2505 | 0, 0, dst_size); |
2debd332 HJ |
2506 | |
2507 | chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr; | |
4262c98a | 2508 | if (reqctx->op == CHCR_ENCRYPT_OP || |
3d64bd67 HJ |
2509 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA || |
2510 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) | |
2debd332 HJ |
2511 | memcpy(chcr_req->key_ctx.key, aeadctx->key, |
2512 | aeadctx->enckey_len); | |
2513 | else | |
2514 | memcpy(chcr_req->key_ctx.key, actx->dec_rrkey, | |
2515 | aeadctx->enckey_len); | |
2516 | ||
125d01ca HJ |
2517 | memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16), |
2518 | actx->h_iopad, kctx_len - roundup(aeadctx->enckey_len, 16)); | |
1f479e4c HJ |
2519 | phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len); |
2520 | ivptr = (u8 *)(phys_cpl + 1) + dst_size; | |
2521 | ulptx = (struct ulptx_sgl *)(ivptr + IV); | |
3d64bd67 HJ |
2522 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA || |
2523 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) { | |
1f479e4c HJ |
2524 | memcpy(ivptr, aeadctx->nonce, CTR_RFC3686_NONCE_SIZE); |
2525 | memcpy(ivptr + CTR_RFC3686_NONCE_SIZE, req->iv, | |
3d64bd67 | 2526 | CTR_RFC3686_IV_SIZE); |
1f479e4c | 2527 | *(__be32 *)(ivptr + CTR_RFC3686_NONCE_SIZE + |
3d64bd67 HJ |
2528 | CTR_RFC3686_IV_SIZE) = cpu_to_be32(1); |
2529 | } else { | |
1f479e4c | 2530 | memcpy(ivptr, req->iv, IV); |
3d64bd67 | 2531 | } |
1f479e4c HJ |
2532 | chcr_add_aead_dst_ent(req, phys_cpl, qid); |
2533 | chcr_add_aead_src_ent(req, ulptx); | |
ee0863ba | 2534 | atomic_inc(&adap->chcr_stats.cipher_rqst); |
1f479e4c HJ |
2535 | temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV + |
2536 | kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0); | |
2f47d580 HJ |
2537 | create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size, |
2538 | transhdr_len, temp, 0); | |
2debd332 | 2539 | reqctx->skb = skb; |
2debd332 HJ |
2540 | |
2541 | return skb; | |
2debd332 | 2542 | err: |
4262c98a | 2543 | chcr_aead_common_exit(req); |
2f47d580 | 2544 | |
5fe8c711 | 2545 | return ERR_PTR(error); |
2debd332 HJ |
2546 | } |
2547 | ||
6dad4e8a AG |
2548 | int chcr_aead_dma_map(struct device *dev, |
2549 | struct aead_request *req, | |
2550 | unsigned short op_type) | |
2f47d580 HJ |
2551 | { |
2552 | int error; | |
2553 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2554 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2555 | unsigned int authsize = crypto_aead_authsize(tfm); | |
2556 | int dst_size; | |
2557 | ||
2558 | dst_size = req->assoclen + req->cryptlen + (op_type ? | |
2559 | -authsize : authsize); | |
2560 | if (!req->cryptlen || !dst_size) | |
2561 | return 0; | |
4262c98a | 2562 | reqctx->iv_dma = dma_map_single(dev, reqctx->iv, (IV + reqctx->b0_len), |
2f47d580 HJ |
2563 | DMA_BIDIRECTIONAL); |
2564 | if (dma_mapping_error(dev, reqctx->iv_dma)) | |
2565 | return -ENOMEM; | |
4262c98a HJ |
2566 | if (reqctx->b0_len) |
2567 | reqctx->b0_dma = reqctx->iv_dma + IV; | |
2568 | else | |
2569 | reqctx->b0_dma = 0; | |
2f47d580 | 2570 | if (req->src == req->dst) { |
9195189e AS |
2571 | error = dma_map_sg(dev, req->src, |
2572 | sg_nents_for_len(req->src, dst_size), | |
2573 | DMA_BIDIRECTIONAL); | |
2f47d580 HJ |
2574 | if (!error) |
2575 | goto err; | |
2576 | } else { | |
2577 | error = dma_map_sg(dev, req->src, sg_nents(req->src), | |
2578 | DMA_TO_DEVICE); | |
2579 | if (!error) | |
2580 | goto err; | |
2581 | error = dma_map_sg(dev, req->dst, sg_nents(req->dst), | |
2582 | DMA_FROM_DEVICE); | |
2583 | if (!error) { | |
2584 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2585 | DMA_TO_DEVICE); | |
2586 | goto err; | |
2587 | } | |
2588 | } | |
2589 | ||
2590 | return 0; | |
2591 | err: | |
2592 | dma_unmap_single(dev, reqctx->iv_dma, IV, DMA_BIDIRECTIONAL); | |
2593 | return -ENOMEM; | |
2594 | } | |
2595 | ||
6dad4e8a AG |
2596 | void chcr_aead_dma_unmap(struct device *dev, |
2597 | struct aead_request *req, | |
2598 | unsigned short op_type) | |
2f47d580 HJ |
2599 | { |
2600 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2601 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2602 | unsigned int authsize = crypto_aead_authsize(tfm); | |
2603 | int dst_size; | |
2604 | ||
2605 | dst_size = req->assoclen + req->cryptlen + (op_type ? | |
2606 | -authsize : authsize); | |
2607 | if (!req->cryptlen || !dst_size) | |
2608 | return; | |
2609 | ||
4262c98a | 2610 | dma_unmap_single(dev, reqctx->iv_dma, (IV + reqctx->b0_len), |
2f47d580 HJ |
2611 | DMA_BIDIRECTIONAL); |
2612 | if (req->src == req->dst) { | |
2613 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2614 | DMA_BIDIRECTIONAL); | |
2615 | } else { | |
2616 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2617 | DMA_TO_DEVICE); | |
2618 | dma_unmap_sg(dev, req->dst, sg_nents(req->dst), | |
2619 | DMA_FROM_DEVICE); | |
2620 | } | |
2621 | } | |
2622 | ||
6dad4e8a | 2623 | void chcr_add_aead_src_ent(struct aead_request *req, |
1f479e4c | 2624 | struct ulptx_sgl *ulptx) |
2f47d580 HJ |
2625 | { |
2626 | struct ulptx_walk ulp_walk; | |
2627 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2628 | ||
2629 | if (reqctx->imm) { | |
2630 | u8 *buf = (u8 *)ulptx; | |
2631 | ||
4262c98a | 2632 | if (reqctx->b0_len) { |
2f47d580 HJ |
2633 | memcpy(buf, reqctx->scratch_pad, reqctx->b0_len); |
2634 | buf += reqctx->b0_len; | |
2635 | } | |
2636 | sg_pcopy_to_buffer(req->src, sg_nents(req->src), | |
1f479e4c | 2637 | buf, req->cryptlen + req->assoclen, 0); |
2f47d580 HJ |
2638 | } else { |
2639 | ulptx_walk_init(&ulp_walk, ulptx); | |
4262c98a | 2640 | if (reqctx->b0_len) |
2f47d580 | 2641 | ulptx_walk_add_page(&ulp_walk, reqctx->b0_len, |
c4f6d44d | 2642 | reqctx->b0_dma); |
1f479e4c HJ |
2643 | ulptx_walk_add_sg(&ulp_walk, req->src, req->cryptlen + |
2644 | req->assoclen, 0); | |
2f47d580 HJ |
2645 | ulptx_walk_end(&ulp_walk); |
2646 | } | |
2647 | } | |
2648 | ||
6dad4e8a AG |
2649 | void chcr_add_aead_dst_ent(struct aead_request *req, |
2650 | struct cpl_rx_phys_dsgl *phys_cpl, | |
6dad4e8a | 2651 | unsigned short qid) |
2f47d580 HJ |
2652 | { |
2653 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2654 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2655 | struct dsgl_walk dsgl_walk; | |
2656 | unsigned int authsize = crypto_aead_authsize(tfm); | |
add92a81 | 2657 | struct chcr_context *ctx = a_ctx(tfm); |
2f47d580 | 2658 | u32 temp; |
567be3a5 | 2659 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; |
2f47d580 HJ |
2660 | |
2661 | dsgl_walk_init(&dsgl_walk, phys_cpl); | |
c4f6d44d | 2662 | dsgl_walk_add_page(&dsgl_walk, IV + reqctx->b0_len, reqctx->iv_dma); |
1f479e4c HJ |
2663 | temp = req->assoclen + req->cryptlen + |
2664 | (reqctx->op ? -authsize : authsize); | |
2665 | dsgl_walk_add_sg(&dsgl_walk, req->dst, temp, 0); | |
567be3a5 | 2666 | dsgl_walk_end(&dsgl_walk, qid, rx_channel_id); |
2f47d580 HJ |
2667 | } |
2668 | ||
7cea6d3e | 2669 | void chcr_add_cipher_src_ent(struct skcipher_request *req, |
335bcc4a | 2670 | void *ulptx, |
6dad4e8a | 2671 | struct cipher_wr_param *wrparam) |
2f47d580 HJ |
2672 | { |
2673 | struct ulptx_walk ulp_walk; | |
7cea6d3e | 2674 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
335bcc4a | 2675 | u8 *buf = ulptx; |
2f47d580 | 2676 | |
335bcc4a HJ |
2677 | memcpy(buf, reqctx->iv, IV); |
2678 | buf += IV; | |
2f47d580 | 2679 | if (reqctx->imm) { |
2f47d580 HJ |
2680 | sg_pcopy_to_buffer(req->src, sg_nents(req->src), |
2681 | buf, wrparam->bytes, reqctx->processed); | |
2682 | } else { | |
335bcc4a | 2683 | ulptx_walk_init(&ulp_walk, (struct ulptx_sgl *)buf); |
2f47d580 HJ |
2684 | ulptx_walk_add_sg(&ulp_walk, reqctx->srcsg, wrparam->bytes, |
2685 | reqctx->src_ofst); | |
2686 | reqctx->srcsg = ulp_walk.last_sg; | |
2687 | reqctx->src_ofst = ulp_walk.last_sg_len; | |
2688 | ulptx_walk_end(&ulp_walk); | |
2689 | } | |
2690 | } | |
2691 | ||
7cea6d3e | 2692 | void chcr_add_cipher_dst_ent(struct skcipher_request *req, |
6dad4e8a AG |
2693 | struct cpl_rx_phys_dsgl *phys_cpl, |
2694 | struct cipher_wr_param *wrparam, | |
2695 | unsigned short qid) | |
2f47d580 | 2696 | { |
7cea6d3e AB |
2697 | struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req); |
2698 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req); | |
add92a81 | 2699 | struct chcr_context *ctx = c_ctx(tfm); |
2f47d580 | 2700 | struct dsgl_walk dsgl_walk; |
567be3a5 | 2701 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; |
2f47d580 HJ |
2702 | |
2703 | dsgl_walk_init(&dsgl_walk, phys_cpl); | |
2f47d580 HJ |
2704 | dsgl_walk_add_sg(&dsgl_walk, reqctx->dstsg, wrparam->bytes, |
2705 | reqctx->dst_ofst); | |
2706 | reqctx->dstsg = dsgl_walk.last_sg; | |
2707 | reqctx->dst_ofst = dsgl_walk.last_sg_len; | |
567be3a5 | 2708 | dsgl_walk_end(&dsgl_walk, qid, rx_channel_id); |
2f47d580 HJ |
2709 | } |
2710 | ||
6dad4e8a AG |
2711 | void chcr_add_hash_src_ent(struct ahash_request *req, |
2712 | struct ulptx_sgl *ulptx, | |
2713 | struct hash_wr_param *param) | |
2f47d580 HJ |
2714 | { |
2715 | struct ulptx_walk ulp_walk; | |
2716 | struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); | |
2717 | ||
5110e655 | 2718 | if (reqctx->hctx_wr.imm) { |
2f47d580 HJ |
2719 | u8 *buf = (u8 *)ulptx; |
2720 | ||
2721 | if (param->bfr_len) { | |
2722 | memcpy(buf, reqctx->reqbfr, param->bfr_len); | |
2723 | buf += param->bfr_len; | |
2724 | } | |
5110e655 HJ |
2725 | |
2726 | sg_pcopy_to_buffer(reqctx->hctx_wr.srcsg, | |
2727 | sg_nents(reqctx->hctx_wr.srcsg), buf, | |
2728 | param->sg_len, 0); | |
2f47d580 HJ |
2729 | } else { |
2730 | ulptx_walk_init(&ulp_walk, ulptx); | |
2731 | if (param->bfr_len) | |
2732 | ulptx_walk_add_page(&ulp_walk, param->bfr_len, | |
c4f6d44d | 2733 | reqctx->hctx_wr.dma_addr); |
5110e655 HJ |
2734 | ulptx_walk_add_sg(&ulp_walk, reqctx->hctx_wr.srcsg, |
2735 | param->sg_len, reqctx->hctx_wr.src_ofst); | |
2736 | reqctx->hctx_wr.srcsg = ulp_walk.last_sg; | |
2737 | reqctx->hctx_wr.src_ofst = ulp_walk.last_sg_len; | |
db6deea4 | 2738 | ulptx_walk_end(&ulp_walk); |
2f47d580 HJ |
2739 | } |
2740 | } | |
2741 | ||
6dad4e8a AG |
2742 | int chcr_hash_dma_map(struct device *dev, |
2743 | struct ahash_request *req) | |
2f47d580 HJ |
2744 | { |
2745 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
2746 | int error = 0; | |
2747 | ||
2748 | if (!req->nbytes) | |
2749 | return 0; | |
2750 | error = dma_map_sg(dev, req->src, sg_nents(req->src), | |
2751 | DMA_TO_DEVICE); | |
2752 | if (!error) | |
7814f552 | 2753 | return -ENOMEM; |
5110e655 | 2754 | req_ctx->hctx_wr.is_sg_map = 1; |
2f47d580 HJ |
2755 | return 0; |
2756 | } | |
2757 | ||
6dad4e8a AG |
2758 | void chcr_hash_dma_unmap(struct device *dev, |
2759 | struct ahash_request *req) | |
2f47d580 HJ |
2760 | { |
2761 | struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); | |
2762 | ||
2763 | if (!req->nbytes) | |
2764 | return; | |
2765 | ||
2766 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2767 | DMA_TO_DEVICE); | |
5110e655 | 2768 | req_ctx->hctx_wr.is_sg_map = 0; |
2f47d580 HJ |
2769 | |
2770 | } | |
2771 | ||
6dad4e8a | 2772 | int chcr_cipher_dma_map(struct device *dev, |
7cea6d3e | 2773 | struct skcipher_request *req) |
2f47d580 HJ |
2774 | { |
2775 | int error; | |
2f47d580 HJ |
2776 | |
2777 | if (req->src == req->dst) { | |
2778 | error = dma_map_sg(dev, req->src, sg_nents(req->src), | |
2779 | DMA_BIDIRECTIONAL); | |
2780 | if (!error) | |
2781 | goto err; | |
2782 | } else { | |
2783 | error = dma_map_sg(dev, req->src, sg_nents(req->src), | |
2784 | DMA_TO_DEVICE); | |
2785 | if (!error) | |
2786 | goto err; | |
2787 | error = dma_map_sg(dev, req->dst, sg_nents(req->dst), | |
2788 | DMA_FROM_DEVICE); | |
2789 | if (!error) { | |
2790 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2791 | DMA_TO_DEVICE); | |
2792 | goto err; | |
2793 | } | |
2794 | } | |
2795 | ||
2796 | return 0; | |
2797 | err: | |
2f47d580 HJ |
2798 | return -ENOMEM; |
2799 | } | |
6dad4e8a AG |
2800 | |
2801 | void chcr_cipher_dma_unmap(struct device *dev, | |
7cea6d3e | 2802 | struct skcipher_request *req) |
2f47d580 | 2803 | { |
2f47d580 HJ |
2804 | if (req->src == req->dst) { |
2805 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2806 | DMA_BIDIRECTIONAL); | |
2807 | } else { | |
2808 | dma_unmap_sg(dev, req->src, sg_nents(req->src), | |
2809 | DMA_TO_DEVICE); | |
2810 | dma_unmap_sg(dev, req->dst, sg_nents(req->dst), | |
2811 | DMA_FROM_DEVICE); | |
2812 | } | |
2813 | } | |
2814 | ||
2debd332 HJ |
2815 | static int set_msg_len(u8 *block, unsigned int msglen, int csize) |
2816 | { | |
2817 | __be32 data; | |
2818 | ||
2819 | memset(block, 0, csize); | |
2820 | block += csize; | |
2821 | ||
2822 | if (csize >= 4) | |
2823 | csize = 4; | |
2824 | else if (msglen > (unsigned int)(1 << (8 * csize))) | |
2825 | return -EOVERFLOW; | |
2826 | ||
2827 | data = cpu_to_be32(msglen); | |
2828 | memcpy(block - csize, (u8 *)&data + 4 - csize, csize); | |
2829 | ||
2830 | return 0; | |
2831 | } | |
2832 | ||
66af86d9 | 2833 | static int generate_b0(struct aead_request *req, u8 *ivptr, |
2debd332 HJ |
2834 | unsigned short op_type) |
2835 | { | |
2836 | unsigned int l, lp, m; | |
2837 | int rc; | |
2838 | struct crypto_aead *aead = crypto_aead_reqtfm(req); | |
2839 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2840 | u8 *b0 = reqctx->scratch_pad; | |
2841 | ||
2842 | m = crypto_aead_authsize(aead); | |
2843 | ||
1f479e4c | 2844 | memcpy(b0, ivptr, 16); |
2debd332 HJ |
2845 | |
2846 | lp = b0[0]; | |
2847 | l = lp + 1; | |
2848 | ||
2849 | /* set m, bits 3-5 */ | |
2850 | *b0 |= (8 * ((m - 2) / 2)); | |
2851 | ||
2852 | /* set adata, bit 6, if associated data is used */ | |
2853 | if (req->assoclen) | |
2854 | *b0 |= 64; | |
2855 | rc = set_msg_len(b0 + 16 - l, | |
2856 | (op_type == CHCR_DECRYPT_OP) ? | |
2857 | req->cryptlen - m : req->cryptlen, l); | |
66af86d9 Y |
2858 | |
2859 | return rc; | |
2debd332 HJ |
2860 | } |
2861 | ||
2862 | static inline int crypto_ccm_check_iv(const u8 *iv) | |
2863 | { | |
2864 | /* 2 <= L <= 8, so 1 <= L' <= 7. */ | |
2865 | if (iv[0] < 1 || iv[0] > 7) | |
2866 | return -EINVAL; | |
2867 | ||
2868 | return 0; | |
2869 | } | |
2870 | ||
2871 | static int ccm_format_packet(struct aead_request *req, | |
1f479e4c | 2872 | u8 *ivptr, |
2debd332 | 2873 | unsigned int sub_type, |
4262c98a HJ |
2874 | unsigned short op_type, |
2875 | unsigned int assoclen) | |
2debd332 HJ |
2876 | { |
2877 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
1f479e4c HJ |
2878 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); |
2879 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); | |
2debd332 HJ |
2880 | int rc = 0; |
2881 | ||
2debd332 | 2882 | if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) { |
1f479e4c HJ |
2883 | ivptr[0] = 3; |
2884 | memcpy(ivptr + 1, &aeadctx->salt[0], 3); | |
2885 | memcpy(ivptr + 4, req->iv, 8); | |
2886 | memset(ivptr + 12, 0, 4); | |
2debd332 | 2887 | } else { |
1f479e4c | 2888 | memcpy(ivptr, req->iv, 16); |
2debd332 | 2889 | } |
4262c98a HJ |
2890 | if (assoclen) |
2891 | *((unsigned short *)(reqctx->scratch_pad + 16)) = | |
2892 | htons(assoclen); | |
2893 | ||
66af86d9 | 2894 | rc = generate_b0(req, ivptr, op_type); |
2debd332 | 2895 | /* zero the ctr value */ |
1f479e4c | 2896 | memset(ivptr + 15 - ivptr[0], 0, ivptr[0] + 1); |
2debd332 HJ |
2897 | return rc; |
2898 | } | |
2899 | ||
2900 | static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl, | |
2901 | unsigned int dst_size, | |
2902 | struct aead_request *req, | |
2f47d580 | 2903 | unsigned short op_type) |
2debd332 HJ |
2904 | { |
2905 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
567be3a5 AS |
2906 | struct chcr_context *ctx = a_ctx(tfm); |
2907 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx); | |
2908 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
2debd332 HJ |
2909 | unsigned int cipher_mode = CHCR_SCMD_CIPHER_MODE_AES_CCM; |
2910 | unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC; | |
567be3a5 | 2911 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; |
2debd332 HJ |
2912 | unsigned int ccm_xtra; |
2913 | unsigned char tag_offset = 0, auth_offset = 0; | |
2debd332 HJ |
2914 | unsigned int assoclen; |
2915 | ||
2916 | if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) | |
2917 | assoclen = req->assoclen - 8; | |
2918 | else | |
2919 | assoclen = req->assoclen; | |
2920 | ccm_xtra = CCM_B0_SIZE + | |
2921 | ((assoclen) ? CCM_AAD_FIELD_SIZE : 0); | |
2922 | ||
2923 | auth_offset = req->cryptlen ? | |
1f479e4c | 2924 | (req->assoclen + IV + 1 + ccm_xtra) : 0; |
2debd332 HJ |
2925 | if (op_type == CHCR_DECRYPT_OP) { |
2926 | if (crypto_aead_authsize(tfm) != req->cryptlen) | |
2927 | tag_offset = crypto_aead_authsize(tfm); | |
2928 | else | |
2929 | auth_offset = 0; | |
2930 | } | |
2931 | ||
567be3a5 | 2932 | sec_cpl->op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1); |
2debd332 | 2933 | sec_cpl->pldlen = |
1f479e4c | 2934 | htonl(req->assoclen + IV + req->cryptlen + ccm_xtra); |
2debd332 HJ |
2935 | /* For CCM there wil be b0 always. So AAD start will be 1 always */ |
2936 | sec_cpl->aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI( | |
1f479e4c HJ |
2937 | 1 + IV, IV + assoclen + ccm_xtra, |
2938 | req->assoclen + IV + 1 + ccm_xtra, 0); | |
2debd332 HJ |
2939 | |
2940 | sec_cpl->cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(0, | |
2941 | auth_offset, tag_offset, | |
2942 | (op_type == CHCR_ENCRYPT_OP) ? 0 : | |
2943 | crypto_aead_authsize(tfm)); | |
2944 | sec_cpl->seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(op_type, | |
2945 | (op_type == CHCR_ENCRYPT_OP) ? 0 : 1, | |
0a7bd30c | 2946 | cipher_mode, mac_mode, |
2f47d580 | 2947 | aeadctx->hmac_ctrl, IV >> 1); |
2debd332 HJ |
2948 | |
2949 | sec_cpl->ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, 0, | |
2f47d580 | 2950 | 0, dst_size); |
2debd332 HJ |
2951 | } |
2952 | ||
1efb892b CIK |
2953 | static int aead_ccm_validate_input(unsigned short op_type, |
2954 | struct aead_request *req, | |
2955 | struct chcr_aead_ctx *aeadctx, | |
2956 | unsigned int sub_type) | |
2debd332 HJ |
2957 | { |
2958 | if (sub_type != CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) { | |
2959 | if (crypto_ccm_check_iv(req->iv)) { | |
2960 | pr_err("CCM: IV check fails\n"); | |
2961 | return -EINVAL; | |
2962 | } | |
2963 | } else { | |
2964 | if (req->assoclen != 16 && req->assoclen != 20) { | |
2965 | pr_err("RFC4309: Invalid AAD length %d\n", | |
2966 | req->assoclen); | |
2967 | return -EINVAL; | |
2968 | } | |
2969 | } | |
2debd332 HJ |
2970 | return 0; |
2971 | } | |
2972 | ||
2debd332 HJ |
2973 | static struct sk_buff *create_aead_ccm_wr(struct aead_request *req, |
2974 | unsigned short qid, | |
4262c98a | 2975 | int size) |
2debd332 HJ |
2976 | { |
2977 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
2f47d580 | 2978 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
2979 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); |
2980 | struct sk_buff *skb = NULL; | |
2981 | struct chcr_wr *chcr_req; | |
2982 | struct cpl_rx_phys_dsgl *phys_cpl; | |
2f47d580 HJ |
2983 | struct ulptx_sgl *ulptx; |
2984 | unsigned int transhdr_len; | |
1f479e4c | 2985 | unsigned int dst_size = 0, kctx_len, dnents, temp, snents; |
2f47d580 | 2986 | unsigned int sub_type, assoclen = req->assoclen; |
2debd332 | 2987 | unsigned int authsize = crypto_aead_authsize(tfm); |
2f47d580 | 2988 | int error = -EINVAL; |
1f479e4c | 2989 | u8 *ivptr; |
2debd332 HJ |
2990 | gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : |
2991 | GFP_ATOMIC; | |
2f47d580 | 2992 | struct adapter *adap = padap(a_ctx(tfm)->dev); |
2debd332 | 2993 | |
2f47d580 HJ |
2994 | sub_type = get_aead_subtype(tfm); |
2995 | if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) | |
2996 | assoclen -= 8; | |
4262c98a HJ |
2997 | reqctx->b0_len = CCM_B0_SIZE + (assoclen ? CCM_AAD_FIELD_SIZE : 0); |
2998 | error = chcr_aead_common_init(req); | |
2f47d580 HJ |
2999 | if (error) |
3000 | return ERR_PTR(error); | |
0e93708d | 3001 | |
4262c98a | 3002 | error = aead_ccm_validate_input(reqctx->op, req, aeadctx, sub_type); |
5fe8c711 | 3003 | if (error) |
2debd332 | 3004 | goto err; |
1f479e4c | 3005 | dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen |
4262c98a | 3006 | + (reqctx->op ? -authsize : authsize), |
1f479e4c | 3007 | CHCR_DST_SG_SIZE, 0); |
e1a018e6 | 3008 | dnents += MIN_CCM_SG; // For IV and B0 |
2f47d580 | 3009 | dst_size = get_space_for_phys_dsgl(dnents); |
1f479e4c HJ |
3010 | snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen, |
3011 | CHCR_SRC_SG_SIZE, 0); | |
3012 | snents += MIN_CCM_SG; //For B0 | |
125d01ca | 3013 | kctx_len = roundup(aeadctx->enckey_len, 16) * 2; |
2debd332 | 3014 | transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size); |
1f479e4c | 3015 | reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen + |
2f47d580 | 3016 | reqctx->b0_len) <= SGE_MAX_WR_LEN; |
1f479e4c | 3017 | temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen + |
125d01ca | 3018 | reqctx->b0_len, 16) : |
1f479e4c | 3019 | (sgl_len(snents) * 8); |
2f47d580 | 3020 | transhdr_len += temp; |
125d01ca | 3021 | transhdr_len = roundup(transhdr_len, 16); |
2f47d580 HJ |
3022 | |
3023 | if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE - | |
1f479e4c | 3024 | reqctx->b0_len, transhdr_len, reqctx->op)) { |
ee0863ba | 3025 | atomic_inc(&adap->chcr_stats.fallback); |
4262c98a HJ |
3026 | chcr_aead_common_exit(req); |
3027 | return ERR_PTR(chcr_aead_fallback(req, reqctx->op)); | |
0e93708d | 3028 | } |
1f479e4c | 3029 | skb = alloc_skb(transhdr_len, flags); |
2debd332 | 3030 | |
5fe8c711 HJ |
3031 | if (!skb) { |
3032 | error = -ENOMEM; | |
2debd332 | 3033 | goto err; |
5fe8c711 | 3034 | } |
2debd332 | 3035 | |
1f479e4c | 3036 | chcr_req = __skb_put_zero(skb, transhdr_len); |
2debd332 | 3037 | |
4262c98a | 3038 | fill_sec_cpl_for_aead(&chcr_req->sec_cpl, dst_size, req, reqctx->op); |
2debd332 HJ |
3039 | |
3040 | chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr; | |
3041 | memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len); | |
125d01ca HJ |
3042 | memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16), |
3043 | aeadctx->key, aeadctx->enckey_len); | |
2debd332 HJ |
3044 | |
3045 | phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len); | |
1f479e4c HJ |
3046 | ivptr = (u8 *)(phys_cpl + 1) + dst_size; |
3047 | ulptx = (struct ulptx_sgl *)(ivptr + IV); | |
3048 | error = ccm_format_packet(req, ivptr, sub_type, reqctx->op, assoclen); | |
5fe8c711 | 3049 | if (error) |
2debd332 | 3050 | goto dstmap_fail; |
1f479e4c HJ |
3051 | chcr_add_aead_dst_ent(req, phys_cpl, qid); |
3052 | chcr_add_aead_src_ent(req, ulptx); | |
2debd332 | 3053 | |
ee0863ba | 3054 | atomic_inc(&adap->chcr_stats.aead_rqst); |
1f479e4c HJ |
3055 | temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV + |
3056 | kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen + | |
2f47d580 HJ |
3057 | reqctx->b0_len) : 0); |
3058 | create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, 0, | |
3059 | transhdr_len, temp, 0); | |
2debd332 | 3060 | reqctx->skb = skb; |
2f47d580 | 3061 | |
2debd332 HJ |
3062 | return skb; |
3063 | dstmap_fail: | |
3064 | kfree_skb(skb); | |
2debd332 | 3065 | err: |
4262c98a | 3066 | chcr_aead_common_exit(req); |
5fe8c711 | 3067 | return ERR_PTR(error); |
2debd332 HJ |
3068 | } |
3069 | ||
3070 | static struct sk_buff *create_gcm_wr(struct aead_request *req, | |
3071 | unsigned short qid, | |
4262c98a | 3072 | int size) |
2debd332 HJ |
3073 | { |
3074 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
567be3a5 AS |
3075 | struct chcr_context *ctx = a_ctx(tfm); |
3076 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx); | |
2debd332 HJ |
3077 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); |
3078 | struct sk_buff *skb = NULL; | |
3079 | struct chcr_wr *chcr_req; | |
3080 | struct cpl_rx_phys_dsgl *phys_cpl; | |
2f47d580 | 3081 | struct ulptx_sgl *ulptx; |
1f479e4c | 3082 | unsigned int transhdr_len, dnents = 0, snents; |
2f47d580 | 3083 | unsigned int dst_size = 0, temp = 0, kctx_len, assoclen = req->assoclen; |
2debd332 | 3084 | unsigned int authsize = crypto_aead_authsize(tfm); |
2f47d580 | 3085 | int error = -EINVAL; |
1f479e4c | 3086 | u8 *ivptr; |
2debd332 HJ |
3087 | gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : |
3088 | GFP_ATOMIC; | |
567be3a5 AS |
3089 | struct adapter *adap = padap(ctx->dev); |
3090 | unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan; | |
2debd332 | 3091 | |
2f47d580 HJ |
3092 | if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) |
3093 | assoclen = req->assoclen - 8; | |
2debd332 | 3094 | |
4262c98a HJ |
3095 | reqctx->b0_len = 0; |
3096 | error = chcr_aead_common_init(req); | |
e1a018e6 HJ |
3097 | if (error) |
3098 | return ERR_PTR(error); | |
1f479e4c | 3099 | dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen + |
4262c98a | 3100 | (reqctx->op ? -authsize : authsize), |
1f479e4c HJ |
3101 | CHCR_DST_SG_SIZE, 0); |
3102 | snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen, | |
3103 | CHCR_SRC_SG_SIZE, 0); | |
e1a018e6 | 3104 | dnents += MIN_GCM_SG; // For IV |
2f47d580 | 3105 | dst_size = get_space_for_phys_dsgl(dnents); |
125d01ca | 3106 | kctx_len = roundup(aeadctx->enckey_len, 16) + AEAD_H_SIZE; |
2debd332 | 3107 | transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size); |
1f479e4c | 3108 | reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) <= |
2f47d580 | 3109 | SGE_MAX_WR_LEN; |
1f479e4c HJ |
3110 | temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16) : |
3111 | (sgl_len(snents) * 8); | |
2f47d580 | 3112 | transhdr_len += temp; |
125d01ca | 3113 | transhdr_len = roundup(transhdr_len, 16); |
2f47d580 | 3114 | if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE, |
4262c98a HJ |
3115 | transhdr_len, reqctx->op)) { |
3116 | ||
ee0863ba | 3117 | atomic_inc(&adap->chcr_stats.fallback); |
4262c98a HJ |
3118 | chcr_aead_common_exit(req); |
3119 | return ERR_PTR(chcr_aead_fallback(req, reqctx->op)); | |
0e93708d | 3120 | } |
1f479e4c | 3121 | skb = alloc_skb(transhdr_len, flags); |
5fe8c711 HJ |
3122 | if (!skb) { |
3123 | error = -ENOMEM; | |
2debd332 | 3124 | goto err; |
5fe8c711 | 3125 | } |
2debd332 | 3126 | |
de77b966 | 3127 | chcr_req = __skb_put_zero(skb, transhdr_len); |
2debd332 | 3128 | |
2f47d580 | 3129 | //Offset of tag from end |
4262c98a | 3130 | temp = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize; |
2debd332 | 3131 | chcr_req->sec_cpl.op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR( |
567be3a5 | 3132 | rx_channel_id, 2, 1); |
0e93708d | 3133 | chcr_req->sec_cpl.pldlen = |
1f479e4c | 3134 | htonl(req->assoclen + IV + req->cryptlen); |
2debd332 | 3135 | chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI( |
1f479e4c HJ |
3136 | assoclen ? 1 + IV : 0, |
3137 | assoclen ? IV + assoclen : 0, | |
3138 | req->assoclen + IV + 1, 0); | |
e1a018e6 | 3139 | chcr_req->sec_cpl.cipherstop_lo_authinsert = |
1f479e4c | 3140 | FILL_SEC_CPL_AUTHINSERT(0, req->assoclen + IV + 1, |
2f47d580 | 3141 | temp, temp); |
e1a018e6 | 3142 | chcr_req->sec_cpl.seqno_numivs = |
4262c98a | 3143 | FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, (reqctx->op == |
2debd332 HJ |
3144 | CHCR_ENCRYPT_OP) ? 1 : 0, |
3145 | CHCR_SCMD_CIPHER_MODE_AES_GCM, | |
0a7bd30c | 3146 | CHCR_SCMD_AUTH_MODE_GHASH, |
2f47d580 | 3147 | aeadctx->hmac_ctrl, IV >> 1); |
2debd332 | 3148 | chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, |
2f47d580 | 3149 | 0, 0, dst_size); |
2debd332 HJ |
3150 | chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr; |
3151 | memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len); | |
125d01ca HJ |
3152 | memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16), |
3153 | GCM_CTX(aeadctx)->ghash_h, AEAD_H_SIZE); | |
2debd332 | 3154 | |
1f479e4c HJ |
3155 | phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len); |
3156 | ivptr = (u8 *)(phys_cpl + 1) + dst_size; | |
2debd332 HJ |
3157 | /* prepare a 16 byte iv */ |
3158 | /* S A L T | IV | 0x00000001 */ | |
3159 | if (get_aead_subtype(tfm) == | |
3160 | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) { | |
1f479e4c HJ |
3161 | memcpy(ivptr, aeadctx->salt, 4); |
3162 | memcpy(ivptr + 4, req->iv, GCM_RFC4106_IV_SIZE); | |
2debd332 | 3163 | } else { |
1f479e4c | 3164 | memcpy(ivptr, req->iv, GCM_AES_IV_SIZE); |
2debd332 | 3165 | } |
1f479e4c | 3166 | *((unsigned int *)(ivptr + 12)) = htonl(0x01); |
2debd332 | 3167 | |
1f479e4c | 3168 | ulptx = (struct ulptx_sgl *)(ivptr + 16); |
2debd332 | 3169 | |
1f479e4c HJ |
3170 | chcr_add_aead_dst_ent(req, phys_cpl, qid); |
3171 | chcr_add_aead_src_ent(req, ulptx); | |
ee0863ba | 3172 | atomic_inc(&adap->chcr_stats.aead_rqst); |
1f479e4c HJ |
3173 | temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV + |
3174 | kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0); | |
2f47d580 HJ |
3175 | create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size, |
3176 | transhdr_len, temp, reqctx->verify); | |
2debd332 | 3177 | reqctx->skb = skb; |
2debd332 HJ |
3178 | return skb; |
3179 | ||
2debd332 | 3180 | err: |
4262c98a | 3181 | chcr_aead_common_exit(req); |
5fe8c711 | 3182 | return ERR_PTR(error); |
2debd332 HJ |
3183 | } |
3184 | ||
3185 | ||
3186 | ||
3187 | static int chcr_aead_cra_init(struct crypto_aead *tfm) | |
3188 | { | |
2f47d580 | 3189 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
0e93708d HJ |
3190 | struct aead_alg *alg = crypto_aead_alg(tfm); |
3191 | ||
3192 | aeadctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0, | |
5fe8c711 HJ |
3193 | CRYPTO_ALG_NEED_FALLBACK | |
3194 | CRYPTO_ALG_ASYNC); | |
0e93708d HJ |
3195 | if (IS_ERR(aeadctx->sw_cipher)) |
3196 | return PTR_ERR(aeadctx->sw_cipher); | |
3197 | crypto_aead_set_reqsize(tfm, max(sizeof(struct chcr_aead_reqctx), | |
3198 | sizeof(struct aead_request) + | |
3199 | crypto_aead_reqsize(aeadctx->sw_cipher))); | |
2f47d580 | 3200 | return chcr_device_init(a_ctx(tfm)); |
2debd332 HJ |
3201 | } |
3202 | ||
3203 | static void chcr_aead_cra_exit(struct crypto_aead *tfm) | |
3204 | { | |
2f47d580 | 3205 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
0e93708d | 3206 | |
0e93708d | 3207 | crypto_free_aead(aeadctx->sw_cipher); |
2debd332 HJ |
3208 | } |
3209 | ||
3210 | static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm, | |
3211 | unsigned int authsize) | |
3212 | { | |
2f47d580 | 3213 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
3214 | |
3215 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NOP; | |
3216 | aeadctx->mayverify = VERIFY_HW; | |
0e93708d | 3217 | return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize); |
2debd332 HJ |
3218 | } |
3219 | static int chcr_authenc_setauthsize(struct crypto_aead *tfm, | |
3220 | unsigned int authsize) | |
3221 | { | |
2f47d580 | 3222 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
3223 | u32 maxauth = crypto_aead_maxauthsize(tfm); |
3224 | ||
3225 | /*SHA1 authsize in ipsec is 12 instead of 10 i.e maxauthsize / 2 is not | |
3226 | * true for sha1. authsize == 12 condition should be before | |
3227 | * authsize == (maxauth >> 1) | |
3228 | */ | |
3229 | if (authsize == ICV_4) { | |
3230 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1; | |
3231 | aeadctx->mayverify = VERIFY_HW; | |
3232 | } else if (authsize == ICV_6) { | |
3233 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2; | |
3234 | aeadctx->mayverify = VERIFY_HW; | |
3235 | } else if (authsize == ICV_10) { | |
3236 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366; | |
3237 | aeadctx->mayverify = VERIFY_HW; | |
3238 | } else if (authsize == ICV_12) { | |
3239 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT; | |
3240 | aeadctx->mayverify = VERIFY_HW; | |
3241 | } else if (authsize == ICV_14) { | |
3242 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3; | |
3243 | aeadctx->mayverify = VERIFY_HW; | |
3244 | } else if (authsize == (maxauth >> 1)) { | |
3245 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2; | |
3246 | aeadctx->mayverify = VERIFY_HW; | |
3247 | } else if (authsize == maxauth) { | |
3248 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3249 | aeadctx->mayverify = VERIFY_HW; | |
3250 | } else { | |
3251 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3252 | aeadctx->mayverify = VERIFY_SW; | |
3253 | } | |
0e93708d | 3254 | return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize); |
2debd332 HJ |
3255 | } |
3256 | ||
3257 | ||
3258 | static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize) | |
3259 | { | |
2f47d580 | 3260 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
3261 | |
3262 | switch (authsize) { | |
3263 | case ICV_4: | |
3264 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1; | |
3265 | aeadctx->mayverify = VERIFY_HW; | |
3266 | break; | |
3267 | case ICV_8: | |
3268 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2; | |
3269 | aeadctx->mayverify = VERIFY_HW; | |
3270 | break; | |
3271 | case ICV_12: | |
fc6176a2 CIK |
3272 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT; |
3273 | aeadctx->mayverify = VERIFY_HW; | |
2debd332 HJ |
3274 | break; |
3275 | case ICV_14: | |
fc6176a2 CIK |
3276 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3; |
3277 | aeadctx->mayverify = VERIFY_HW; | |
2debd332 HJ |
3278 | break; |
3279 | case ICV_16: | |
3280 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3281 | aeadctx->mayverify = VERIFY_HW; | |
3282 | break; | |
3283 | case ICV_13: | |
3284 | case ICV_15: | |
3285 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3286 | aeadctx->mayverify = VERIFY_SW; | |
3287 | break; | |
3288 | default: | |
2debd332 HJ |
3289 | return -EINVAL; |
3290 | } | |
0e93708d | 3291 | return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize); |
2debd332 HJ |
3292 | } |
3293 | ||
3294 | static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm, | |
3295 | unsigned int authsize) | |
3296 | { | |
2f47d580 | 3297 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
3298 | |
3299 | switch (authsize) { | |
3300 | case ICV_8: | |
3301 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2; | |
3302 | aeadctx->mayverify = VERIFY_HW; | |
3303 | break; | |
3304 | case ICV_12: | |
3305 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT; | |
3306 | aeadctx->mayverify = VERIFY_HW; | |
3307 | break; | |
3308 | case ICV_16: | |
3309 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3310 | aeadctx->mayverify = VERIFY_HW; | |
3311 | break; | |
3312 | default: | |
2debd332 HJ |
3313 | return -EINVAL; |
3314 | } | |
0e93708d | 3315 | return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize); |
2debd332 HJ |
3316 | } |
3317 | ||
3318 | static int chcr_ccm_setauthsize(struct crypto_aead *tfm, | |
3319 | unsigned int authsize) | |
3320 | { | |
2f47d580 | 3321 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm)); |
2debd332 HJ |
3322 | |
3323 | switch (authsize) { | |
3324 | case ICV_4: | |
3325 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1; | |
3326 | aeadctx->mayverify = VERIFY_HW; | |
3327 | break; | |
3328 | case ICV_6: | |
3329 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2; | |
3330 | aeadctx->mayverify = VERIFY_HW; | |
3331 | break; | |
3332 | case ICV_8: | |
3333 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2; | |
3334 | aeadctx->mayverify = VERIFY_HW; | |
3335 | break; | |
3336 | case ICV_10: | |
3337 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366; | |
3338 | aeadctx->mayverify = VERIFY_HW; | |
3339 | break; | |
3340 | case ICV_12: | |
3341 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT; | |
3342 | aeadctx->mayverify = VERIFY_HW; | |
3343 | break; | |
3344 | case ICV_14: | |
3345 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3; | |
3346 | aeadctx->mayverify = VERIFY_HW; | |
3347 | break; | |
3348 | case ICV_16: | |
3349 | aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC; | |
3350 | aeadctx->mayverify = VERIFY_HW; | |
3351 | break; | |
3352 | default: | |
2debd332 HJ |
3353 | return -EINVAL; |
3354 | } | |
0e93708d | 3355 | return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize); |
2debd332 HJ |
3356 | } |
3357 | ||
0e93708d | 3358 | static int chcr_ccm_common_setkey(struct crypto_aead *aead, |
2debd332 HJ |
3359 | const u8 *key, |
3360 | unsigned int keylen) | |
3361 | { | |
2f47d580 | 3362 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead)); |
2debd332 HJ |
3363 | unsigned char ck_size, mk_size; |
3364 | int key_ctx_size = 0; | |
3365 | ||
125d01ca | 3366 | key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) * 2; |
2debd332 | 3367 | if (keylen == AES_KEYSIZE_128) { |
2debd332 | 3368 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128; |
125d01ca | 3369 | mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_128; |
2debd332 HJ |
3370 | } else if (keylen == AES_KEYSIZE_192) { |
3371 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192; | |
3372 | mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_192; | |
3373 | } else if (keylen == AES_KEYSIZE_256) { | |
3374 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256; | |
3375 | mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256; | |
3376 | } else { | |
2debd332 HJ |
3377 | aeadctx->enckey_len = 0; |
3378 | return -EINVAL; | |
3379 | } | |
3380 | aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, mk_size, 0, 0, | |
3381 | key_ctx_size >> 4); | |
0e93708d HJ |
3382 | memcpy(aeadctx->key, key, keylen); |
3383 | aeadctx->enckey_len = keylen; | |
3384 | ||
2debd332 HJ |
3385 | return 0; |
3386 | } | |
3387 | ||
0e93708d HJ |
3388 | static int chcr_aead_ccm_setkey(struct crypto_aead *aead, |
3389 | const u8 *key, | |
3390 | unsigned int keylen) | |
3391 | { | |
2f47d580 | 3392 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead)); |
0e93708d HJ |
3393 | int error; |
3394 | ||
3395 | crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK); | |
3396 | crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) & | |
3397 | CRYPTO_TFM_REQ_MASK); | |
3398 | error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen); | |
0e93708d HJ |
3399 | if (error) |
3400 | return error; | |
3401 | return chcr_ccm_common_setkey(aead, key, keylen); | |
3402 | } | |
3403 | ||
2debd332 HJ |
3404 | static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key, |
3405 | unsigned int keylen) | |
3406 | { | |
2f47d580 | 3407 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead)); |
4dbeae42 | 3408 | int error; |
2debd332 HJ |
3409 | |
3410 | if (keylen < 3) { | |
2debd332 HJ |
3411 | aeadctx->enckey_len = 0; |
3412 | return -EINVAL; | |
3413 | } | |
4dbeae42 HJ |
3414 | crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK); |
3415 | crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) & | |
3416 | CRYPTO_TFM_REQ_MASK); | |
3417 | error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen); | |
4dbeae42 HJ |
3418 | if (error) |
3419 | return error; | |
2debd332 HJ |
3420 | keylen -= 3; |
3421 | memcpy(aeadctx->salt, key + keylen, 3); | |
0e93708d | 3422 | return chcr_ccm_common_setkey(aead, key, keylen); |
2debd332 HJ |
3423 | } |
3424 | ||
3425 | static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key, | |
3426 | unsigned int keylen) | |
3427 | { | |
2f47d580 | 3428 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead)); |
2debd332 | 3429 | struct chcr_gcm_ctx *gctx = GCM_CTX(aeadctx); |
2debd332 HJ |
3430 | unsigned int ck_size; |
3431 | int ret = 0, key_ctx_size = 0; | |
571c47ab | 3432 | struct crypto_aes_ctx aes; |
2debd332 | 3433 | |
0e93708d HJ |
3434 | aeadctx->enckey_len = 0; |
3435 | crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK); | |
3436 | crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) | |
3437 | & CRYPTO_TFM_REQ_MASK); | |
3438 | ret = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen); | |
0e93708d HJ |
3439 | if (ret) |
3440 | goto out; | |
3441 | ||
7c2cf1c4 HJ |
3442 | if (get_aead_subtype(aead) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 && |
3443 | keylen > 3) { | |
2debd332 HJ |
3444 | keylen -= 4; /* nonce/salt is present in the last 4 bytes */ |
3445 | memcpy(aeadctx->salt, key + keylen, 4); | |
3446 | } | |
3447 | if (keylen == AES_KEYSIZE_128) { | |
3448 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128; | |
3449 | } else if (keylen == AES_KEYSIZE_192) { | |
3450 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192; | |
3451 | } else if (keylen == AES_KEYSIZE_256) { | |
3452 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256; | |
3453 | } else { | |
0e93708d | 3454 | pr_err("GCM: Invalid key length %d\n", keylen); |
2debd332 HJ |
3455 | ret = -EINVAL; |
3456 | goto out; | |
3457 | } | |
3458 | ||
3459 | memcpy(aeadctx->key, key, keylen); | |
3460 | aeadctx->enckey_len = keylen; | |
125d01ca | 3461 | key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) + |
2debd332 | 3462 | AEAD_H_SIZE; |
125d01ca | 3463 | aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, |
2debd332 HJ |
3464 | CHCR_KEYCTX_MAC_KEY_SIZE_128, |
3465 | 0, 0, | |
3466 | key_ctx_size >> 4); | |
8356ea51 HJ |
3467 | /* Calculate the H = CIPH(K, 0 repeated 16 times). |
3468 | * It will go in key context | |
2debd332 | 3469 | */ |
571c47ab | 3470 | ret = aes_expandkey(&aes, key, keylen); |
2debd332 HJ |
3471 | if (ret) { |
3472 | aeadctx->enckey_len = 0; | |
571c47ab | 3473 | goto out; |
2debd332 HJ |
3474 | } |
3475 | memset(gctx->ghash_h, 0, AEAD_H_SIZE); | |
571c47ab AB |
3476 | aes_encrypt(&aes, gctx->ghash_h, gctx->ghash_h); |
3477 | memzero_explicit(&aes, sizeof(aes)); | |
2debd332 | 3478 | |
2debd332 HJ |
3479 | out: |
3480 | return ret; | |
3481 | } | |
3482 | ||
3483 | static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key, | |
3484 | unsigned int keylen) | |
3485 | { | |
2f47d580 | 3486 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc)); |
2debd332 HJ |
3487 | struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx); |
3488 | /* it contains auth and cipher key both*/ | |
3489 | struct crypto_authenc_keys keys; | |
3d64bd67 | 3490 | unsigned int bs, subtype; |
2debd332 HJ |
3491 | unsigned int max_authsize = crypto_aead_alg(authenc)->maxauthsize; |
3492 | int err = 0, i, key_ctx_len = 0; | |
3493 | unsigned char ck_size = 0; | |
3494 | unsigned char pad[CHCR_HASH_MAX_BLOCK_SIZE_128] = { 0 }; | |
ec1bca94 | 3495 | struct crypto_shash *base_hash = ERR_PTR(-EINVAL); |
2debd332 HJ |
3496 | struct algo_param param; |
3497 | int align; | |
3498 | u8 *o_ptr = NULL; | |
3499 | ||
0e93708d HJ |
3500 | crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK); |
3501 | crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc) | |
3502 | & CRYPTO_TFM_REQ_MASK); | |
3503 | err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen); | |
0e93708d HJ |
3504 | if (err) |
3505 | goto out; | |
3506 | ||
674f368a | 3507 | if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) |
2debd332 | 3508 | goto out; |
2debd332 HJ |
3509 | |
3510 | if (get_alg_config(¶m, max_authsize)) { | |
3511 | pr_err("chcr : Unsupported digest size\n"); | |
3512 | goto out; | |
3513 | } | |
3d64bd67 HJ |
3514 | subtype = get_aead_subtype(authenc); |
3515 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA || | |
3516 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) { | |
3517 | if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE) | |
3518 | goto out; | |
3519 | memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen | |
3520 | - CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE); | |
3521 | keys.enckeylen -= CTR_RFC3686_NONCE_SIZE; | |
3522 | } | |
2debd332 HJ |
3523 | if (keys.enckeylen == AES_KEYSIZE_128) { |
3524 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128; | |
3525 | } else if (keys.enckeylen == AES_KEYSIZE_192) { | |
3526 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192; | |
3527 | } else if (keys.enckeylen == AES_KEYSIZE_256) { | |
3528 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256; | |
3529 | } else { | |
3530 | pr_err("chcr : Unsupported cipher key\n"); | |
3531 | goto out; | |
3532 | } | |
3533 | ||
3534 | /* Copy only encryption key. We use authkey to generate h(ipad) and | |
3535 | * h(opad) so authkey is not needed again. authkeylen size have the | |
3536 | * size of the hash digest size. | |
3537 | */ | |
3538 | memcpy(aeadctx->key, keys.enckey, keys.enckeylen); | |
3539 | aeadctx->enckey_len = keys.enckeylen; | |
3d64bd67 HJ |
3540 | if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA || |
3541 | subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) { | |
2debd332 | 3542 | |
3d64bd67 HJ |
3543 | get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key, |
3544 | aeadctx->enckey_len << 3); | |
3545 | } | |
2debd332 HJ |
3546 | base_hash = chcr_alloc_shash(max_authsize); |
3547 | if (IS_ERR(base_hash)) { | |
3548 | pr_err("chcr : Base driver cannot be loaded\n"); | |
0e93708d | 3549 | aeadctx->enckey_len = 0; |
eb526531 | 3550 | memzero_explicit(&keys, sizeof(keys)); |
0e93708d | 3551 | return -EINVAL; |
324429d7 | 3552 | } |
2debd332 HJ |
3553 | { |
3554 | SHASH_DESC_ON_STACK(shash, base_hash); | |
6faa0f57 | 3555 | |
2debd332 | 3556 | shash->tfm = base_hash; |
2debd332 HJ |
3557 | bs = crypto_shash_blocksize(base_hash); |
3558 | align = KEYCTX_ALIGN_PAD(max_authsize); | |
3559 | o_ptr = actx->h_iopad + param.result_size + align; | |
3560 | ||
3561 | if (keys.authkeylen > bs) { | |
3562 | err = crypto_shash_digest(shash, keys.authkey, | |
3563 | keys.authkeylen, | |
3564 | o_ptr); | |
3565 | if (err) { | |
3566 | pr_err("chcr : Base driver cannot be loaded\n"); | |
3567 | goto out; | |
3568 | } | |
3569 | keys.authkeylen = max_authsize; | |
3570 | } else | |
3571 | memcpy(o_ptr, keys.authkey, keys.authkeylen); | |
3572 | ||
3573 | /* Compute the ipad-digest*/ | |
3574 | memset(pad + keys.authkeylen, 0, bs - keys.authkeylen); | |
3575 | memcpy(pad, o_ptr, keys.authkeylen); | |
3576 | for (i = 0; i < bs >> 2; i++) | |
3577 | *((unsigned int *)pad + i) ^= IPAD_DATA; | |
3578 | ||
3579 | if (chcr_compute_partial_hash(shash, pad, actx->h_iopad, | |
3580 | max_authsize)) | |
3581 | goto out; | |
3582 | /* Compute the opad-digest */ | |
3583 | memset(pad + keys.authkeylen, 0, bs - keys.authkeylen); | |
3584 | memcpy(pad, o_ptr, keys.authkeylen); | |
3585 | for (i = 0; i < bs >> 2; i++) | |
3586 | *((unsigned int *)pad + i) ^= OPAD_DATA; | |
3587 | ||
3588 | if (chcr_compute_partial_hash(shash, pad, o_ptr, max_authsize)) | |
3589 | goto out; | |
3590 | ||
3591 | /* convert the ipad and opad digest to network order */ | |
3592 | chcr_change_order(actx->h_iopad, param.result_size); | |
3593 | chcr_change_order(o_ptr, param.result_size); | |
3594 | key_ctx_len = sizeof(struct _key_ctx) + | |
125d01ca | 3595 | roundup(keys.enckeylen, 16) + |
2debd332 HJ |
3596 | (param.result_size + align) * 2; |
3597 | aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, param.mk_size, | |
3598 | 0, 1, key_ctx_len >> 4); | |
3599 | actx->auth_mode = param.auth_mode; | |
3600 | chcr_free_shash(base_hash); | |
3601 | ||
eb526531 | 3602 | memzero_explicit(&keys, sizeof(keys)); |
2debd332 HJ |
3603 | return 0; |
3604 | } | |
3605 | out: | |
3606 | aeadctx->enckey_len = 0; | |
eb526531 | 3607 | memzero_explicit(&keys, sizeof(keys)); |
ec1bca94 | 3608 | if (!IS_ERR(base_hash)) |
2debd332 HJ |
3609 | chcr_free_shash(base_hash); |
3610 | return -EINVAL; | |
324429d7 HS |
3611 | } |
3612 | ||
2debd332 HJ |
3613 | static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc, |
3614 | const u8 *key, unsigned int keylen) | |
3615 | { | |
2f47d580 | 3616 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc)); |
2debd332 HJ |
3617 | struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx); |
3618 | struct crypto_authenc_keys keys; | |
0e93708d | 3619 | int err; |
2debd332 | 3620 | /* it contains auth and cipher key both*/ |
3d64bd67 | 3621 | unsigned int subtype; |
2debd332 HJ |
3622 | int key_ctx_len = 0; |
3623 | unsigned char ck_size = 0; | |
3624 | ||
0e93708d HJ |
3625 | crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK); |
3626 | crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc) | |
3627 | & CRYPTO_TFM_REQ_MASK); | |
3628 | err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen); | |
0e93708d HJ |
3629 | if (err) |
3630 | goto out; | |
3631 | ||
674f368a | 3632 | if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) |
2debd332 | 3633 | goto out; |
674f368a | 3634 | |
3d64bd67 HJ |
3635 | subtype = get_aead_subtype(authenc); |
3636 | if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA || | |
3637 | subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) { | |
3638 | if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE) | |
3639 | goto out; | |
3640 | memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen | |
3641 | - CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE); | |
3642 | keys.enckeylen -= CTR_RFC3686_NONCE_SIZE; | |
3643 | } | |
2debd332 HJ |
3644 | if (keys.enckeylen == AES_KEYSIZE_128) { |
3645 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128; | |
3646 | } else if (keys.enckeylen == AES_KEYSIZE_192) { | |
3647 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192; | |
3648 | } else if (keys.enckeylen == AES_KEYSIZE_256) { | |
3649 | ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256; | |
3650 | } else { | |
3d64bd67 | 3651 | pr_err("chcr : Unsupported cipher key %d\n", keys.enckeylen); |
2debd332 HJ |
3652 | goto out; |
3653 | } | |
3654 | memcpy(aeadctx->key, keys.enckey, keys.enckeylen); | |
3655 | aeadctx->enckey_len = keys.enckeylen; | |
3d64bd67 HJ |
3656 | if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA || |
3657 | subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) { | |
3658 | get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key, | |
3659 | aeadctx->enckey_len << 3); | |
3660 | } | |
125d01ca | 3661 | key_ctx_len = sizeof(struct _key_ctx) + roundup(keys.enckeylen, 16); |
2debd332 HJ |
3662 | |
3663 | aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, 0, | |
3664 | 0, key_ctx_len >> 4); | |
3665 | actx->auth_mode = CHCR_SCMD_AUTH_MODE_NOP; | |
eb526531 | 3666 | memzero_explicit(&keys, sizeof(keys)); |
2debd332 HJ |
3667 | return 0; |
3668 | out: | |
3669 | aeadctx->enckey_len = 0; | |
eb526531 | 3670 | memzero_explicit(&keys, sizeof(keys)); |
2debd332 HJ |
3671 | return -EINVAL; |
3672 | } | |
6dad4e8a AG |
3673 | |
3674 | static int chcr_aead_op(struct aead_request *req, | |
6dad4e8a AG |
3675 | int size, |
3676 | create_wr_t create_wr_fn) | |
3677 | { | |
3678 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
fef4912b | 3679 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); |
567be3a5 AS |
3680 | struct chcr_context *ctx = a_ctx(tfm); |
3681 | struct uld_ctx *u_ctx = ULD_CTX(ctx); | |
6dad4e8a | 3682 | struct sk_buff *skb; |
fef4912b | 3683 | struct chcr_dev *cdev; |
6dad4e8a | 3684 | |
fef4912b HJ |
3685 | cdev = a_ctx(tfm)->dev; |
3686 | if (!cdev) { | |
6dad4e8a AG |
3687 | pr_err("chcr : %s : No crypto device.\n", __func__); |
3688 | return -ENXIO; | |
3689 | } | |
fef4912b HJ |
3690 | |
3691 | if (chcr_inc_wrcount(cdev)) { | |
3692 | /* Detach state for CHCR means lldi or padap is freed. | |
3693 | * We cannot increment fallback here. | |
3694 | */ | |
3695 | return chcr_aead_fallback(req, reqctx->op); | |
3696 | } | |
3697 | ||
6dad4e8a | 3698 | if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], |
567be3a5 AS |
3699 | reqctx->txqidx) && |
3700 | (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) { | |
fef4912b | 3701 | chcr_dec_wrcount(cdev); |
6faa0f57 | 3702 | return -ENOSPC; |
6dad4e8a AG |
3703 | } |
3704 | ||
3705 | /* Form a WR from req */ | |
567be3a5 | 3706 | skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx], size); |
6dad4e8a | 3707 | |
b04a27ca | 3708 | if (IS_ERR_OR_NULL(skb)) { |
fef4912b | 3709 | chcr_dec_wrcount(cdev); |
b04a27ca | 3710 | return PTR_ERR_OR_ZERO(skb); |
fef4912b | 3711 | } |
6dad4e8a AG |
3712 | |
3713 | skb->dev = u_ctx->lldi.ports[0]; | |
567be3a5 | 3714 | set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx); |
6dad4e8a | 3715 | chcr_send_wr(skb); |
567be3a5 | 3716 | return -EINPROGRESS; |
6dad4e8a AG |
3717 | } |
3718 | ||
2debd332 HJ |
3719 | static int chcr_aead_encrypt(struct aead_request *req) |
3720 | { | |
3721 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
3722 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); | |
567be3a5 AS |
3723 | struct chcr_context *ctx = a_ctx(tfm); |
3724 | unsigned int cpu; | |
3725 | ||
3726 | cpu = get_cpu(); | |
3727 | reqctx->txqidx = cpu % ctx->ntxq; | |
3728 | reqctx->rxqidx = cpu % ctx->nrxq; | |
3729 | put_cpu(); | |
2debd332 HJ |
3730 | |
3731 | reqctx->verify = VERIFY_HW; | |
4262c98a | 3732 | reqctx->op = CHCR_ENCRYPT_OP; |
2debd332 HJ |
3733 | |
3734 | switch (get_aead_subtype(tfm)) { | |
3d64bd67 HJ |
3735 | case CRYPTO_ALG_SUB_TYPE_CTR_SHA: |
3736 | case CRYPTO_ALG_SUB_TYPE_CBC_SHA: | |
3737 | case CRYPTO_ALG_SUB_TYPE_CBC_NULL: | |
3738 | case CRYPTO_ALG_SUB_TYPE_CTR_NULL: | |
4262c98a | 3739 | return chcr_aead_op(req, 0, create_authenc_wr); |
2debd332 HJ |
3740 | case CRYPTO_ALG_SUB_TYPE_AEAD_CCM: |
3741 | case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309: | |
4262c98a | 3742 | return chcr_aead_op(req, 0, create_aead_ccm_wr); |
2debd332 | 3743 | default: |
4262c98a | 3744 | return chcr_aead_op(req, 0, create_gcm_wr); |
2debd332 HJ |
3745 | } |
3746 | } | |
3747 | ||
3748 | static int chcr_aead_decrypt(struct aead_request *req) | |
3749 | { | |
3750 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
567be3a5 AS |
3751 | struct chcr_context *ctx = a_ctx(tfm); |
3752 | struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx); | |
2debd332 HJ |
3753 | struct chcr_aead_reqctx *reqctx = aead_request_ctx(req); |
3754 | int size; | |
567be3a5 AS |
3755 | unsigned int cpu; |
3756 | ||
3757 | cpu = get_cpu(); | |
3758 | reqctx->txqidx = cpu % ctx->ntxq; | |
3759 | reqctx->rxqidx = cpu % ctx->nrxq; | |
3760 | put_cpu(); | |
2debd332 HJ |
3761 | |
3762 | if (aeadctx->mayverify == VERIFY_SW) { | |
3763 | size = crypto_aead_maxauthsize(tfm); | |
3764 | reqctx->verify = VERIFY_SW; | |
3765 | } else { | |
3766 | size = 0; | |
3767 | reqctx->verify = VERIFY_HW; | |
3768 | } | |
4262c98a | 3769 | reqctx->op = CHCR_DECRYPT_OP; |
2debd332 | 3770 | switch (get_aead_subtype(tfm)) { |
3d64bd67 HJ |
3771 | case CRYPTO_ALG_SUB_TYPE_CBC_SHA: |
3772 | case CRYPTO_ALG_SUB_TYPE_CTR_SHA: | |
3773 | case CRYPTO_ALG_SUB_TYPE_CBC_NULL: | |
3774 | case CRYPTO_ALG_SUB_TYPE_CTR_NULL: | |
4262c98a | 3775 | return chcr_aead_op(req, size, create_authenc_wr); |
2debd332 HJ |
3776 | case CRYPTO_ALG_SUB_TYPE_AEAD_CCM: |
3777 | case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309: | |
4262c98a | 3778 | return chcr_aead_op(req, size, create_aead_ccm_wr); |
2debd332 | 3779 | default: |
4262c98a | 3780 | return chcr_aead_op(req, size, create_gcm_wr); |
2debd332 HJ |
3781 | } |
3782 | } | |
3783 | ||
324429d7 HS |
3784 | static struct chcr_alg_template driver_algs[] = { |
3785 | /* AES-CBC */ | |
3786 | { | |
7cea6d3e | 3787 | .type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CBC, |
324429d7 | 3788 | .is_registered = 0, |
7cea6d3e AB |
3789 | .alg.skcipher = { |
3790 | .base.cra_name = "cbc(aes)", | |
3791 | .base.cra_driver_name = "cbc-aes-chcr", | |
3792 | .base.cra_blocksize = AES_BLOCK_SIZE, | |
3793 | ||
3794 | .init = chcr_init_tfm, | |
3795 | .exit = chcr_exit_tfm, | |
3796 | .min_keysize = AES_MIN_KEY_SIZE, | |
3797 | .max_keysize = AES_MAX_KEY_SIZE, | |
3798 | .ivsize = AES_BLOCK_SIZE, | |
3799 | .setkey = chcr_aes_cbc_setkey, | |
3800 | .encrypt = chcr_aes_encrypt, | |
3801 | .decrypt = chcr_aes_decrypt, | |
324429d7 | 3802 | } |
324429d7 HS |
3803 | }, |
3804 | { | |
7cea6d3e | 3805 | .type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_XTS, |
324429d7 | 3806 | .is_registered = 0, |
7cea6d3e AB |
3807 | .alg.skcipher = { |
3808 | .base.cra_name = "xts(aes)", | |
3809 | .base.cra_driver_name = "xts-aes-chcr", | |
3810 | .base.cra_blocksize = AES_BLOCK_SIZE, | |
3811 | ||
3812 | .init = chcr_init_tfm, | |
3813 | .exit = chcr_exit_tfm, | |
3814 | .min_keysize = 2 * AES_MIN_KEY_SIZE, | |
3815 | .max_keysize = 2 * AES_MAX_KEY_SIZE, | |
3816 | .ivsize = AES_BLOCK_SIZE, | |
3817 | .setkey = chcr_aes_xts_setkey, | |
3818 | .encrypt = chcr_aes_encrypt, | |
3819 | .decrypt = chcr_aes_decrypt, | |
324429d7 | 3820 | } |
b8fd1f41 HJ |
3821 | }, |
3822 | { | |
7cea6d3e | 3823 | .type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CTR, |
b8fd1f41 | 3824 | .is_registered = 0, |
7cea6d3e AB |
3825 | .alg.skcipher = { |
3826 | .base.cra_name = "ctr(aes)", | |
3827 | .base.cra_driver_name = "ctr-aes-chcr", | |
3828 | .base.cra_blocksize = 1, | |
3829 | ||
3830 | .init = chcr_init_tfm, | |
3831 | .exit = chcr_exit_tfm, | |
3832 | .min_keysize = AES_MIN_KEY_SIZE, | |
3833 | .max_keysize = AES_MAX_KEY_SIZE, | |
3834 | .ivsize = AES_BLOCK_SIZE, | |
3835 | .setkey = chcr_aes_ctr_setkey, | |
3836 | .encrypt = chcr_aes_encrypt, | |
3837 | .decrypt = chcr_aes_decrypt, | |
b8fd1f41 HJ |
3838 | } |
3839 | }, | |
3840 | { | |
7cea6d3e | 3841 | .type = CRYPTO_ALG_TYPE_SKCIPHER | |
b8fd1f41 HJ |
3842 | CRYPTO_ALG_SUB_TYPE_CTR_RFC3686, |
3843 | .is_registered = 0, | |
7cea6d3e AB |
3844 | .alg.skcipher = { |
3845 | .base.cra_name = "rfc3686(ctr(aes))", | |
3846 | .base.cra_driver_name = "rfc3686-ctr-aes-chcr", | |
3847 | .base.cra_blocksize = 1, | |
3848 | ||
3849 | .init = chcr_rfc3686_init, | |
3850 | .exit = chcr_exit_tfm, | |
3851 | .min_keysize = AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, | |
3852 | .max_keysize = AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, | |
3853 | .ivsize = CTR_RFC3686_IV_SIZE, | |
3854 | .setkey = chcr_aes_rfc3686_setkey, | |
3855 | .encrypt = chcr_aes_encrypt, | |
3856 | .decrypt = chcr_aes_decrypt, | |
324429d7 HS |
3857 | } |
3858 | }, | |
3859 | /* SHA */ | |
3860 | { | |
3861 | .type = CRYPTO_ALG_TYPE_AHASH, | |
3862 | .is_registered = 0, | |
3863 | .alg.hash = { | |
3864 | .halg.digestsize = SHA1_DIGEST_SIZE, | |
3865 | .halg.base = { | |
3866 | .cra_name = "sha1", | |
3867 | .cra_driver_name = "sha1-chcr", | |
3868 | .cra_blocksize = SHA1_BLOCK_SIZE, | |
3869 | } | |
3870 | } | |
3871 | }, | |
3872 | { | |
3873 | .type = CRYPTO_ALG_TYPE_AHASH, | |
3874 | .is_registered = 0, | |
3875 | .alg.hash = { | |
3876 | .halg.digestsize = SHA256_DIGEST_SIZE, | |
3877 | .halg.base = { | |
3878 | .cra_name = "sha256", | |
3879 | .cra_driver_name = "sha256-chcr", | |
3880 | .cra_blocksize = SHA256_BLOCK_SIZE, | |
3881 | } | |
3882 | } | |
3883 | }, | |
3884 | { | |
3885 | .type = CRYPTO_ALG_TYPE_AHASH, | |
3886 | .is_registered = 0, | |
3887 | .alg.hash = { | |
3888 | .halg.digestsize = SHA224_DIGEST_SIZE, | |
3889 | .halg.base = { | |
3890 | .cra_name = "sha224", | |
3891 | .cra_driver_name = "sha224-chcr", | |
3892 | .cra_blocksize = SHA224_BLOCK_SIZE, | |
3893 | } | |
3894 | } | |
3895 | }, | |
3896 | { | |
3897 | .type = CRYPTO_ALG_TYPE_AHASH, | |
3898 | .is_registered = 0, | |
3899 | .alg.hash = { | |
3900 | .halg.digestsize = SHA384_DIGEST_SIZE, | |
3901 | .halg.base = { | |
3902 | .cra_name = "sha384", | |
3903 | .cra_driver_name = "sha384-chcr", | |
3904 | .cra_blocksize = SHA384_BLOCK_SIZE, | |
3905 | } | |
3906 | } | |
3907 | }, | |
3908 | { | |
3909 | .type = CRYPTO_ALG_TYPE_AHASH, | |
3910 | .is_registered = 0, | |
3911 | .alg.hash = { | |
3912 | .halg.digestsize = SHA512_DIGEST_SIZE, | |
3913 | .halg.base = { | |
3914 | .cra_name = "sha512", | |
3915 | .cra_driver_name = "sha512-chcr", | |
3916 | .cra_blocksize = SHA512_BLOCK_SIZE, | |
3917 | } | |
3918 | } | |
3919 | }, | |
3920 | /* HMAC */ | |
3921 | { | |
3922 | .type = CRYPTO_ALG_TYPE_HMAC, | |
3923 | .is_registered = 0, | |
3924 | .alg.hash = { | |
3925 | .halg.digestsize = SHA1_DIGEST_SIZE, | |
3926 | .halg.base = { | |
3927 | .cra_name = "hmac(sha1)", | |
2debd332 | 3928 | .cra_driver_name = "hmac-sha1-chcr", |
324429d7 HS |
3929 | .cra_blocksize = SHA1_BLOCK_SIZE, |
3930 | } | |
3931 | } | |
3932 | }, | |
3933 | { | |
3934 | .type = CRYPTO_ALG_TYPE_HMAC, | |
3935 | .is_registered = 0, | |
3936 | .alg.hash = { | |
3937 | .halg.digestsize = SHA224_DIGEST_SIZE, | |
3938 | .halg.base = { | |
3939 | .cra_name = "hmac(sha224)", | |
2debd332 | 3940 | .cra_driver_name = "hmac-sha224-chcr", |
324429d7 HS |
3941 | .cra_blocksize = SHA224_BLOCK_SIZE, |
3942 | } | |
3943 | } | |
3944 | }, | |
3945 | { | |
3946 | .type = CRYPTO_ALG_TYPE_HMAC, | |
3947 | .is_registered = 0, | |
3948 | .alg.hash = { | |
3949 | .halg.digestsize = SHA256_DIGEST_SIZE, | |
3950 | .halg.base = { | |
3951 | .cra_name = "hmac(sha256)", | |
2debd332 | 3952 | .cra_driver_name = "hmac-sha256-chcr", |
324429d7 HS |
3953 | .cra_blocksize = SHA256_BLOCK_SIZE, |
3954 | } | |
3955 | } | |
3956 | }, | |
3957 | { | |
3958 | .type = CRYPTO_ALG_TYPE_HMAC, | |
3959 | .is_registered = 0, | |
3960 | .alg.hash = { | |
3961 | .halg.digestsize = SHA384_DIGEST_SIZE, | |
3962 | .halg.base = { | |
3963 | .cra_name = "hmac(sha384)", | |
2debd332 | 3964 | .cra_driver_name = "hmac-sha384-chcr", |
324429d7 HS |
3965 | .cra_blocksize = SHA384_BLOCK_SIZE, |
3966 | } | |
3967 | } | |
3968 | }, | |
3969 | { | |
3970 | .type = CRYPTO_ALG_TYPE_HMAC, | |
3971 | .is_registered = 0, | |
3972 | .alg.hash = { | |
3973 | .halg.digestsize = SHA512_DIGEST_SIZE, | |
3974 | .halg.base = { | |
3975 | .cra_name = "hmac(sha512)", | |
2debd332 | 3976 | .cra_driver_name = "hmac-sha512-chcr", |
324429d7 HS |
3977 | .cra_blocksize = SHA512_BLOCK_SIZE, |
3978 | } | |
3979 | } | |
3980 | }, | |
2debd332 HJ |
3981 | /* Add AEAD Algorithms */ |
3982 | { | |
3983 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_GCM, | |
3984 | .is_registered = 0, | |
3985 | .alg.aead = { | |
3986 | .base = { | |
3987 | .cra_name = "gcm(aes)", | |
3988 | .cra_driver_name = "gcm-aes-chcr", | |
3989 | .cra_blocksize = 1, | |
e29abda5 | 3990 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
3991 | .cra_ctxsize = sizeof(struct chcr_context) + |
3992 | sizeof(struct chcr_aead_ctx) + | |
3993 | sizeof(struct chcr_gcm_ctx), | |
3994 | }, | |
8f6acb7f | 3995 | .ivsize = GCM_AES_IV_SIZE, |
2debd332 HJ |
3996 | .maxauthsize = GHASH_DIGEST_SIZE, |
3997 | .setkey = chcr_gcm_setkey, | |
3998 | .setauthsize = chcr_gcm_setauthsize, | |
3999 | } | |
4000 | }, | |
4001 | { | |
4002 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106, | |
4003 | .is_registered = 0, | |
4004 | .alg.aead = { | |
4005 | .base = { | |
4006 | .cra_name = "rfc4106(gcm(aes))", | |
4007 | .cra_driver_name = "rfc4106-gcm-aes-chcr", | |
4008 | .cra_blocksize = 1, | |
e29abda5 | 4009 | .cra_priority = CHCR_AEAD_PRIORITY + 1, |
2debd332 HJ |
4010 | .cra_ctxsize = sizeof(struct chcr_context) + |
4011 | sizeof(struct chcr_aead_ctx) + | |
4012 | sizeof(struct chcr_gcm_ctx), | |
4013 | ||
4014 | }, | |
8f6acb7f | 4015 | .ivsize = GCM_RFC4106_IV_SIZE, |
2debd332 HJ |
4016 | .maxauthsize = GHASH_DIGEST_SIZE, |
4017 | .setkey = chcr_gcm_setkey, | |
4018 | .setauthsize = chcr_4106_4309_setauthsize, | |
4019 | } | |
4020 | }, | |
4021 | { | |
4022 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_CCM, | |
4023 | .is_registered = 0, | |
4024 | .alg.aead = { | |
4025 | .base = { | |
4026 | .cra_name = "ccm(aes)", | |
4027 | .cra_driver_name = "ccm-aes-chcr", | |
4028 | .cra_blocksize = 1, | |
e29abda5 | 4029 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4030 | .cra_ctxsize = sizeof(struct chcr_context) + |
4031 | sizeof(struct chcr_aead_ctx), | |
4032 | ||
4033 | }, | |
4034 | .ivsize = AES_BLOCK_SIZE, | |
4035 | .maxauthsize = GHASH_DIGEST_SIZE, | |
4036 | .setkey = chcr_aead_ccm_setkey, | |
4037 | .setauthsize = chcr_ccm_setauthsize, | |
4038 | } | |
4039 | }, | |
4040 | { | |
4041 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309, | |
4042 | .is_registered = 0, | |
4043 | .alg.aead = { | |
4044 | .base = { | |
4045 | .cra_name = "rfc4309(ccm(aes))", | |
4046 | .cra_driver_name = "rfc4309-ccm-aes-chcr", | |
4047 | .cra_blocksize = 1, | |
e29abda5 | 4048 | .cra_priority = CHCR_AEAD_PRIORITY + 1, |
2debd332 HJ |
4049 | .cra_ctxsize = sizeof(struct chcr_context) + |
4050 | sizeof(struct chcr_aead_ctx), | |
4051 | ||
4052 | }, | |
4053 | .ivsize = 8, | |
4054 | .maxauthsize = GHASH_DIGEST_SIZE, | |
4055 | .setkey = chcr_aead_rfc4309_setkey, | |
4056 | .setauthsize = chcr_4106_4309_setauthsize, | |
4057 | } | |
4058 | }, | |
4059 | { | |
3d64bd67 | 4060 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA, |
2debd332 HJ |
4061 | .is_registered = 0, |
4062 | .alg.aead = { | |
4063 | .base = { | |
4064 | .cra_name = "authenc(hmac(sha1),cbc(aes))", | |
4065 | .cra_driver_name = | |
4066 | "authenc-hmac-sha1-cbc-aes-chcr", | |
4067 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4068 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4069 | .cra_ctxsize = sizeof(struct chcr_context) + |
4070 | sizeof(struct chcr_aead_ctx) + | |
4071 | sizeof(struct chcr_authenc_ctx), | |
4072 | ||
4073 | }, | |
4074 | .ivsize = AES_BLOCK_SIZE, | |
4075 | .maxauthsize = SHA1_DIGEST_SIZE, | |
4076 | .setkey = chcr_authenc_setkey, | |
4077 | .setauthsize = chcr_authenc_setauthsize, | |
4078 | } | |
4079 | }, | |
4080 | { | |
3d64bd67 | 4081 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA, |
2debd332 HJ |
4082 | .is_registered = 0, |
4083 | .alg.aead = { | |
4084 | .base = { | |
4085 | ||
4086 | .cra_name = "authenc(hmac(sha256),cbc(aes))", | |
4087 | .cra_driver_name = | |
4088 | "authenc-hmac-sha256-cbc-aes-chcr", | |
4089 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4090 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4091 | .cra_ctxsize = sizeof(struct chcr_context) + |
4092 | sizeof(struct chcr_aead_ctx) + | |
4093 | sizeof(struct chcr_authenc_ctx), | |
4094 | ||
4095 | }, | |
4096 | .ivsize = AES_BLOCK_SIZE, | |
4097 | .maxauthsize = SHA256_DIGEST_SIZE, | |
4098 | .setkey = chcr_authenc_setkey, | |
4099 | .setauthsize = chcr_authenc_setauthsize, | |
4100 | } | |
4101 | }, | |
4102 | { | |
3d64bd67 | 4103 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA, |
2debd332 HJ |
4104 | .is_registered = 0, |
4105 | .alg.aead = { | |
4106 | .base = { | |
4107 | .cra_name = "authenc(hmac(sha224),cbc(aes))", | |
4108 | .cra_driver_name = | |
4109 | "authenc-hmac-sha224-cbc-aes-chcr", | |
4110 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4111 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4112 | .cra_ctxsize = sizeof(struct chcr_context) + |
4113 | sizeof(struct chcr_aead_ctx) + | |
4114 | sizeof(struct chcr_authenc_ctx), | |
4115 | }, | |
4116 | .ivsize = AES_BLOCK_SIZE, | |
4117 | .maxauthsize = SHA224_DIGEST_SIZE, | |
4118 | .setkey = chcr_authenc_setkey, | |
4119 | .setauthsize = chcr_authenc_setauthsize, | |
4120 | } | |
4121 | }, | |
4122 | { | |
3d64bd67 | 4123 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA, |
2debd332 HJ |
4124 | .is_registered = 0, |
4125 | .alg.aead = { | |
4126 | .base = { | |
4127 | .cra_name = "authenc(hmac(sha384),cbc(aes))", | |
4128 | .cra_driver_name = | |
4129 | "authenc-hmac-sha384-cbc-aes-chcr", | |
4130 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4131 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4132 | .cra_ctxsize = sizeof(struct chcr_context) + |
4133 | sizeof(struct chcr_aead_ctx) + | |
4134 | sizeof(struct chcr_authenc_ctx), | |
4135 | ||
4136 | }, | |
4137 | .ivsize = AES_BLOCK_SIZE, | |
4138 | .maxauthsize = SHA384_DIGEST_SIZE, | |
4139 | .setkey = chcr_authenc_setkey, | |
4140 | .setauthsize = chcr_authenc_setauthsize, | |
4141 | } | |
4142 | }, | |
4143 | { | |
3d64bd67 | 4144 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA, |
2debd332 HJ |
4145 | .is_registered = 0, |
4146 | .alg.aead = { | |
4147 | .base = { | |
4148 | .cra_name = "authenc(hmac(sha512),cbc(aes))", | |
4149 | .cra_driver_name = | |
4150 | "authenc-hmac-sha512-cbc-aes-chcr", | |
4151 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4152 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4153 | .cra_ctxsize = sizeof(struct chcr_context) + |
4154 | sizeof(struct chcr_aead_ctx) + | |
4155 | sizeof(struct chcr_authenc_ctx), | |
4156 | ||
4157 | }, | |
4158 | .ivsize = AES_BLOCK_SIZE, | |
4159 | .maxauthsize = SHA512_DIGEST_SIZE, | |
4160 | .setkey = chcr_authenc_setkey, | |
4161 | .setauthsize = chcr_authenc_setauthsize, | |
4162 | } | |
4163 | }, | |
4164 | { | |
3d64bd67 | 4165 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_NULL, |
2debd332 HJ |
4166 | .is_registered = 0, |
4167 | .alg.aead = { | |
4168 | .base = { | |
4169 | .cra_name = "authenc(digest_null,cbc(aes))", | |
4170 | .cra_driver_name = | |
4171 | "authenc-digest_null-cbc-aes-chcr", | |
4172 | .cra_blocksize = AES_BLOCK_SIZE, | |
e29abda5 | 4173 | .cra_priority = CHCR_AEAD_PRIORITY, |
2debd332 HJ |
4174 | .cra_ctxsize = sizeof(struct chcr_context) + |
4175 | sizeof(struct chcr_aead_ctx) + | |
4176 | sizeof(struct chcr_authenc_ctx), | |
4177 | ||
4178 | }, | |
4179 | .ivsize = AES_BLOCK_SIZE, | |
4180 | .maxauthsize = 0, | |
4181 | .setkey = chcr_aead_digest_null_setkey, | |
4182 | .setauthsize = chcr_authenc_null_setauthsize, | |
4183 | } | |
4184 | }, | |
3d64bd67 HJ |
4185 | { |
4186 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA, | |
4187 | .is_registered = 0, | |
4188 | .alg.aead = { | |
4189 | .base = { | |
4190 | .cra_name = "authenc(hmac(sha1),rfc3686(ctr(aes)))", | |
4191 | .cra_driver_name = | |
4192 | "authenc-hmac-sha1-rfc3686-ctr-aes-chcr", | |
4193 | .cra_blocksize = 1, | |
4194 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4195 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4196 | sizeof(struct chcr_aead_ctx) + | |
4197 | sizeof(struct chcr_authenc_ctx), | |
4198 | ||
4199 | }, | |
4200 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4201 | .maxauthsize = SHA1_DIGEST_SIZE, | |
4202 | .setkey = chcr_authenc_setkey, | |
4203 | .setauthsize = chcr_authenc_setauthsize, | |
4204 | } | |
4205 | }, | |
4206 | { | |
4207 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA, | |
4208 | .is_registered = 0, | |
4209 | .alg.aead = { | |
4210 | .base = { | |
4211 | ||
4212 | .cra_name = "authenc(hmac(sha256),rfc3686(ctr(aes)))", | |
4213 | .cra_driver_name = | |
4214 | "authenc-hmac-sha256-rfc3686-ctr-aes-chcr", | |
4215 | .cra_blocksize = 1, | |
4216 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4217 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4218 | sizeof(struct chcr_aead_ctx) + | |
4219 | sizeof(struct chcr_authenc_ctx), | |
4220 | ||
4221 | }, | |
4222 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4223 | .maxauthsize = SHA256_DIGEST_SIZE, | |
4224 | .setkey = chcr_authenc_setkey, | |
4225 | .setauthsize = chcr_authenc_setauthsize, | |
4226 | } | |
4227 | }, | |
4228 | { | |
4229 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA, | |
4230 | .is_registered = 0, | |
4231 | .alg.aead = { | |
4232 | .base = { | |
4233 | .cra_name = "authenc(hmac(sha224),rfc3686(ctr(aes)))", | |
4234 | .cra_driver_name = | |
4235 | "authenc-hmac-sha224-rfc3686-ctr-aes-chcr", | |
4236 | .cra_blocksize = 1, | |
4237 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4238 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4239 | sizeof(struct chcr_aead_ctx) + | |
4240 | sizeof(struct chcr_authenc_ctx), | |
4241 | }, | |
4242 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4243 | .maxauthsize = SHA224_DIGEST_SIZE, | |
4244 | .setkey = chcr_authenc_setkey, | |
4245 | .setauthsize = chcr_authenc_setauthsize, | |
4246 | } | |
4247 | }, | |
4248 | { | |
4249 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA, | |
4250 | .is_registered = 0, | |
4251 | .alg.aead = { | |
4252 | .base = { | |
4253 | .cra_name = "authenc(hmac(sha384),rfc3686(ctr(aes)))", | |
4254 | .cra_driver_name = | |
4255 | "authenc-hmac-sha384-rfc3686-ctr-aes-chcr", | |
4256 | .cra_blocksize = 1, | |
4257 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4258 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4259 | sizeof(struct chcr_aead_ctx) + | |
4260 | sizeof(struct chcr_authenc_ctx), | |
4261 | ||
4262 | }, | |
4263 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4264 | .maxauthsize = SHA384_DIGEST_SIZE, | |
4265 | .setkey = chcr_authenc_setkey, | |
4266 | .setauthsize = chcr_authenc_setauthsize, | |
4267 | } | |
4268 | }, | |
4269 | { | |
4270 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA, | |
4271 | .is_registered = 0, | |
4272 | .alg.aead = { | |
4273 | .base = { | |
4274 | .cra_name = "authenc(hmac(sha512),rfc3686(ctr(aes)))", | |
4275 | .cra_driver_name = | |
4276 | "authenc-hmac-sha512-rfc3686-ctr-aes-chcr", | |
4277 | .cra_blocksize = 1, | |
4278 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4279 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4280 | sizeof(struct chcr_aead_ctx) + | |
4281 | sizeof(struct chcr_authenc_ctx), | |
4282 | ||
4283 | }, | |
4284 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4285 | .maxauthsize = SHA512_DIGEST_SIZE, | |
4286 | .setkey = chcr_authenc_setkey, | |
4287 | .setauthsize = chcr_authenc_setauthsize, | |
4288 | } | |
4289 | }, | |
4290 | { | |
4291 | .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_NULL, | |
4292 | .is_registered = 0, | |
4293 | .alg.aead = { | |
4294 | .base = { | |
4295 | .cra_name = "authenc(digest_null,rfc3686(ctr(aes)))", | |
4296 | .cra_driver_name = | |
4297 | "authenc-digest_null-rfc3686-ctr-aes-chcr", | |
4298 | .cra_blocksize = 1, | |
4299 | .cra_priority = CHCR_AEAD_PRIORITY, | |
4300 | .cra_ctxsize = sizeof(struct chcr_context) + | |
4301 | sizeof(struct chcr_aead_ctx) + | |
4302 | sizeof(struct chcr_authenc_ctx), | |
4303 | ||
4304 | }, | |
4305 | .ivsize = CTR_RFC3686_IV_SIZE, | |
4306 | .maxauthsize = 0, | |
4307 | .setkey = chcr_aead_digest_null_setkey, | |
4308 | .setauthsize = chcr_authenc_null_setauthsize, | |
4309 | } | |
4310 | }, | |
324429d7 HS |
4311 | }; |
4312 | ||
4313 | /* | |
4314 | * chcr_unregister_alg - Deregister crypto algorithms with | |
4315 | * kernel framework. | |
4316 | */ | |
4317 | static int chcr_unregister_alg(void) | |
4318 | { | |
4319 | int i; | |
4320 | ||
4321 | for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { | |
4322 | switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) { | |
7cea6d3e | 4323 | case CRYPTO_ALG_TYPE_SKCIPHER: |
324429d7 | 4324 | if (driver_algs[i].is_registered) |
7cea6d3e AB |
4325 | crypto_unregister_skcipher( |
4326 | &driver_algs[i].alg.skcipher); | |
324429d7 | 4327 | break; |
2debd332 HJ |
4328 | case CRYPTO_ALG_TYPE_AEAD: |
4329 | if (driver_algs[i].is_registered) | |
4330 | crypto_unregister_aead( | |
4331 | &driver_algs[i].alg.aead); | |
4332 | break; | |
324429d7 HS |
4333 | case CRYPTO_ALG_TYPE_AHASH: |
4334 | if (driver_algs[i].is_registered) | |
4335 | crypto_unregister_ahash( | |
4336 | &driver_algs[i].alg.hash); | |
4337 | break; | |
4338 | } | |
4339 | driver_algs[i].is_registered = 0; | |
4340 | } | |
4341 | return 0; | |
4342 | } | |
4343 | ||
4344 | #define SZ_AHASH_CTX sizeof(struct chcr_context) | |
4345 | #define SZ_AHASH_H_CTX (sizeof(struct chcr_context) + sizeof(struct hmac_ctx)) | |
4346 | #define SZ_AHASH_REQ_CTX sizeof(struct chcr_ahash_req_ctx) | |
324429d7 HS |
4347 | |
4348 | /* | |
4349 | * chcr_register_alg - Register crypto algorithms with kernel framework. | |
4350 | */ | |
4351 | static int chcr_register_alg(void) | |
4352 | { | |
4353 | struct crypto_alg ai; | |
4354 | struct ahash_alg *a_hash; | |
4355 | int err = 0, i; | |
4356 | char *name = NULL; | |
4357 | ||
4358 | for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { | |
4359 | if (driver_algs[i].is_registered) | |
4360 | continue; | |
4361 | switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) { | |
7cea6d3e AB |
4362 | case CRYPTO_ALG_TYPE_SKCIPHER: |
4363 | driver_algs[i].alg.skcipher.base.cra_priority = | |
b8fd1f41 | 4364 | CHCR_CRA_PRIORITY; |
7cea6d3e AB |
4365 | driver_algs[i].alg.skcipher.base.cra_module = THIS_MODULE; |
4366 | driver_algs[i].alg.skcipher.base.cra_flags = | |
4367 | CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC | | |
b8fd1f41 | 4368 | CRYPTO_ALG_NEED_FALLBACK; |
7cea6d3e | 4369 | driver_algs[i].alg.skcipher.base.cra_ctxsize = |
b8fd1f41 HJ |
4370 | sizeof(struct chcr_context) + |
4371 | sizeof(struct ablk_ctx); | |
7cea6d3e AB |
4372 | driver_algs[i].alg.skcipher.base.cra_alignmask = 0; |
4373 | ||
4374 | err = crypto_register_skcipher(&driver_algs[i].alg.skcipher); | |
4375 | name = driver_algs[i].alg.skcipher.base.cra_driver_name; | |
324429d7 | 4376 | break; |
2debd332 | 4377 | case CRYPTO_ALG_TYPE_AEAD: |
2debd332 | 4378 | driver_algs[i].alg.aead.base.cra_flags = |
3f4a537a | 4379 | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK; |
2debd332 HJ |
4380 | driver_algs[i].alg.aead.encrypt = chcr_aead_encrypt; |
4381 | driver_algs[i].alg.aead.decrypt = chcr_aead_decrypt; | |
4382 | driver_algs[i].alg.aead.init = chcr_aead_cra_init; | |
4383 | driver_algs[i].alg.aead.exit = chcr_aead_cra_exit; | |
4384 | driver_algs[i].alg.aead.base.cra_module = THIS_MODULE; | |
4385 | err = crypto_register_aead(&driver_algs[i].alg.aead); | |
4386 | name = driver_algs[i].alg.aead.base.cra_driver_name; | |
4387 | break; | |
324429d7 HS |
4388 | case CRYPTO_ALG_TYPE_AHASH: |
4389 | a_hash = &driver_algs[i].alg.hash; | |
4390 | a_hash->update = chcr_ahash_update; | |
4391 | a_hash->final = chcr_ahash_final; | |
4392 | a_hash->finup = chcr_ahash_finup; | |
4393 | a_hash->digest = chcr_ahash_digest; | |
4394 | a_hash->export = chcr_ahash_export; | |
4395 | a_hash->import = chcr_ahash_import; | |
4396 | a_hash->halg.statesize = SZ_AHASH_REQ_CTX; | |
4397 | a_hash->halg.base.cra_priority = CHCR_CRA_PRIORITY; | |
4398 | a_hash->halg.base.cra_module = THIS_MODULE; | |
6a38f622 | 4399 | a_hash->halg.base.cra_flags = CRYPTO_ALG_ASYNC; |
324429d7 HS |
4400 | a_hash->halg.base.cra_alignmask = 0; |
4401 | a_hash->halg.base.cra_exit = NULL; | |
324429d7 HS |
4402 | |
4403 | if (driver_algs[i].type == CRYPTO_ALG_TYPE_HMAC) { | |
4404 | a_hash->halg.base.cra_init = chcr_hmac_cra_init; | |
4405 | a_hash->halg.base.cra_exit = chcr_hmac_cra_exit; | |
4406 | a_hash->init = chcr_hmac_init; | |
4407 | a_hash->setkey = chcr_ahash_setkey; | |
4408 | a_hash->halg.base.cra_ctxsize = SZ_AHASH_H_CTX; | |
4409 | } else { | |
4410 | a_hash->init = chcr_sha_init; | |
4411 | a_hash->halg.base.cra_ctxsize = SZ_AHASH_CTX; | |
4412 | a_hash->halg.base.cra_init = chcr_sha_cra_init; | |
4413 | } | |
4414 | err = crypto_register_ahash(&driver_algs[i].alg.hash); | |
4415 | ai = driver_algs[i].alg.hash.halg.base; | |
4416 | name = ai.cra_driver_name; | |
4417 | break; | |
4418 | } | |
4419 | if (err) { | |
4420 | pr_err("chcr : %s : Algorithm registration failed\n", | |
4421 | name); | |
4422 | goto register_err; | |
4423 | } else { | |
4424 | driver_algs[i].is_registered = 1; | |
4425 | } | |
4426 | } | |
4427 | return 0; | |
4428 | ||
4429 | register_err: | |
4430 | chcr_unregister_alg(); | |
4431 | return err; | |
4432 | } | |
4433 | ||
4434 | /* | |
4435 | * start_crypto - Register the crypto algorithms. | |
4436 | * This should called once when the first device comesup. After this | |
4437 | * kernel will start calling driver APIs for crypto operations. | |
4438 | */ | |
4439 | int start_crypto(void) | |
4440 | { | |
4441 | return chcr_register_alg(); | |
4442 | } | |
4443 | ||
4444 | /* | |
4445 | * stop_crypto - Deregister all the crypto algorithms with kernel. | |
4446 | * This should be called once when the last device goes down. After this | |
4447 | * kernel will not call the driver API for crypto operations. | |
4448 | */ | |
4449 | int stop_crypto(void) | |
4450 | { | |
4451 | chcr_unregister_alg(); | |
4452 | return 0; | |
4453 | } |