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Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt...
[linux-2.6-block.git] / drivers / crypto / chelsio / chcr_algo.c
CommitLineData
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		 76static 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		 83static 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
90static u32 round_constant[11] = {
91 0x01000000, 0x02000000, 0x04000000, 0x08000000,
92 0x10000000, 0x20000000, 0x40000000, 0x80000000,
93 0x1B000000, 0x36000000, 0x6C000000
94};
95
96static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
97 unsigned char *input, int err);
98
2debd332
HJ		 99static inline struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx)
100{
101 return ctx->crypto_ctx->aeadctx;
102}
103
324429d7
HS		 104static inline struct ablk_ctx *ABLK_CTX(struct chcr_context *ctx)
105{
106 return ctx->crypto_ctx->ablkctx;
107}
108
109static inline struct hmac_ctx *HMAC_CTX(struct chcr_context *ctx)
110{
111 return ctx->crypto_ctx->hmacctx;
112}
113
2debd332
HJ		 114static inline struct chcr_gcm_ctx *GCM_CTX(struct chcr_aead_ctx *gctx)
115{
116 return gctx->ctx->gcm;
117}
118
119static inline struct chcr_authenc_ctx *AUTHENC_CTX(struct chcr_aead_ctx *gctx)
120{
121 return gctx->ctx->authenc;
122}
123
324429d7
HS		 124static 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
129static 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		 134static 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		 139static 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 168static 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 176void 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		 201static int chcr_inc_wrcount(struct chcr_dev *dev)
202{
203 int err = 0;
204
205 spin_lock_bh(&dev->lock_chcr_dev);
206 if (dev->state == CHCR_DETACH)
207 err = 1;
208 else
209 atomic_inc(&dev->inflight);
210
211 spin_unlock_bh(&dev->lock_chcr_dev);
212
213 return err;
214}
215
216static inline void chcr_dec_wrcount(struct chcr_dev *dev)
217{
218 atomic_dec(&dev->inflight);
219}
220
f31ba0f9 221static inline int chcr_handle_aead_resp(struct aead_request *req,
6dad4e8a
AG		 222 unsigned char *input,
223 int err)
224{
225 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
fef4912b
HJ		 226 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
227 struct chcr_dev *dev = a_ctx(tfm)->dev;
6dad4e8a 228
4262c98a 229 chcr_aead_common_exit(req);
6dad4e8a
AG		 230 if (reqctx->verify == VERIFY_SW) {
231 chcr_verify_tag(req, input, &err);
232 reqctx->verify = VERIFY_HW;
233 }
fef4912b 234 chcr_dec_wrcount(dev);
6dad4e8a 235 req->base.complete(&req->base, err);
f31ba0f9
HJ		 236
237 return err;
6dad4e8a
AG		 238}
239
2f47d580 240static void get_aes_decrypt_key(unsigned char *dec_key,
39f91a34
HJ		 241 const unsigned char *key,
242 unsigned int keylength)
243{
244 u32 temp;
245 u32 w_ring[MAX_NK];
246 int i, j, k;
247 u8 nr, nk;
248
249 switch (keylength) {
250 case AES_KEYLENGTH_128BIT:
251 nk = KEYLENGTH_4BYTES;
252 nr = NUMBER_OF_ROUNDS_10;
253 break;
254 case AES_KEYLENGTH_192BIT:
255 nk = KEYLENGTH_6BYTES;
256 nr = NUMBER_OF_ROUNDS_12;
257 break;
258 case AES_KEYLENGTH_256BIT:
259 nk = KEYLENGTH_8BYTES;
260 nr = NUMBER_OF_ROUNDS_14;
261 break;
262 default:
263 return;
264 }
265 for (i = 0; i < nk; i++)
266 w_ring[i] = be32_to_cpu(*(u32 *)&key[4 * i]);
267
268 i = 0;
269 temp = w_ring[nk - 1];
270 while (i + nk < (nr + 1) * 4) {
271 if (!(i % nk)) {
272 /* RotWord(temp) */
273 temp = (temp << 8) | (temp >> 24);
274 temp = aes_ks_subword(temp);
275 temp ^= round_constant[i / nk];
276 } else if (nk == 8 && (i % 4 == 0)) {
277 temp = aes_ks_subword(temp);
278 }
279 w_ring[i % nk] ^= temp;
280 temp = w_ring[i % nk];
281 i++;
282 }
283 i--;
284 for (k = 0, j = i % nk; k < nk; k++) {
285 *((u32 *)dec_key + k) = htonl(w_ring[j]);
286 j--;
287 if (j < 0)
288 j += nk;
289 }
290}
291
e7922729 292static struct crypto_shash *chcr_alloc_shash(unsigned int ds)
324429d7 293{
ec1bca94 294 struct crypto_shash *base_hash = ERR_PTR(-EINVAL);
324429d7
HS		 295
296 switch (ds) {
297 case SHA1_DIGEST_SIZE:
e7922729 298 base_hash = crypto_alloc_shash("sha1", 0, 0);
324429d7
HS		 299 break;
300 case SHA224_DIGEST_SIZE:
e7922729 301 base_hash = crypto_alloc_shash("sha224", 0, 0);
324429d7
HS		 302 break;
303 case SHA256_DIGEST_SIZE:
e7922729 304 base_hash = crypto_alloc_shash("sha256", 0, 0);
324429d7
HS		 305 break;
306 case SHA384_DIGEST_SIZE:
e7922729 307 base_hash = crypto_alloc_shash("sha384", 0, 0);
324429d7
HS		 308 break;
309 case SHA512_DIGEST_SIZE:
e7922729 310 base_hash = crypto_alloc_shash("sha512", 0, 0);
324429d7
HS		 311 break;
312 }
324429d7 313
e7922729 314 return base_hash;
324429d7
HS		 315}
316
317static int chcr_compute_partial_hash(struct shash_desc *desc,
318 char *iopad, char *result_hash,
319 int digest_size)
320{
321 struct sha1_state sha1_st;
322 struct sha256_state sha256_st;
323 struct sha512_state sha512_st;
324 int error;
325
326 if (digest_size == SHA1_DIGEST_SIZE) {
327 error = crypto_shash_init(desc) ?:
328 crypto_shash_update(desc, iopad, SHA1_BLOCK_SIZE) ?:
329 crypto_shash_export(desc, (void *)&sha1_st);
330 memcpy(result_hash, sha1_st.state, SHA1_DIGEST_SIZE);
331 } else if (digest_size == SHA224_DIGEST_SIZE) {
332 error = crypto_shash_init(desc) ?:
333 crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?:
334 crypto_shash_export(desc, (void *)&sha256_st);
335 memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE);
336
337 } else if (digest_size == SHA256_DIGEST_SIZE) {
338 error = crypto_shash_init(desc) ?:
339 crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?:
340 crypto_shash_export(desc, (void *)&sha256_st);
341 memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE);
342
343 } else if (digest_size == SHA384_DIGEST_SIZE) {
344 error = crypto_shash_init(desc) ?:
345 crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?:
346 crypto_shash_export(desc, (void *)&sha512_st);
347 memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE);
348
349 } else if (digest_size == SHA512_DIGEST_SIZE) {
350 error = crypto_shash_init(desc) ?:
351 crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?:
352 crypto_shash_export(desc, (void *)&sha512_st);
353 memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE);
354 } else {
355 error = -EINVAL;
356 pr_err("Unknown digest size %d\n", digest_size);
357 }
358 return error;
359}
360
361static void chcr_change_order(char *buf, int ds)
362{
363 int i;
364
365 if (ds == SHA512_DIGEST_SIZE) {
366 for (i = 0; i < (ds / sizeof(u64)); i++)
367 *((__be64 *)buf + i) =
368 cpu_to_be64(*((u64 *)buf + i));
369 } else {
370 for (i = 0; i < (ds / sizeof(u32)); i++)
371 *((__be32 *)buf + i) =
372 cpu_to_be32(*((u32 *)buf + i));
373 }
374}
375
376static inline int is_hmac(struct crypto_tfm *tfm)
377{
378 struct crypto_alg *alg = tfm->__crt_alg;
379 struct chcr_alg_template *chcr_crypto_alg =
380 container_of(__crypto_ahash_alg(alg), struct chcr_alg_template,
381 alg.hash);
5c86a8ff 382 if (chcr_crypto_alg->type == CRYPTO_ALG_TYPE_HMAC)
324429d7
HS		 383 return 1;
384 return 0;
385}
386
2f47d580
HJ		 387static inline void dsgl_walk_init(struct dsgl_walk *walk,
388 struct cpl_rx_phys_dsgl *dsgl)
324429d7 389{
2f47d580
HJ		 390 walk->dsgl = dsgl;
391 walk->nents = 0;
392 walk->to = (struct phys_sge_pairs *)(dsgl + 1);
393}
394
add92a81
HJ		 395static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid,
396 int pci_chan_id)
2f47d580
HJ		 397{
398 struct cpl_rx_phys_dsgl *phys_cpl;
399
400 phys_cpl = walk->dsgl;
324429d7
HS		 401
402 phys_cpl->op_to_tid = htonl(CPL_RX_PHYS_DSGL_OPCODE_V(CPL_RX_PHYS_DSGL)
403 | CPL_RX_PHYS_DSGL_ISRDMA_V(0));
2f47d580
HJ		 404 phys_cpl->pcirlxorder_to_noofsgentr =
405 htonl(CPL_RX_PHYS_DSGL_PCIRLXORDER_V(0) |
406 CPL_RX_PHYS_DSGL_PCINOSNOOP_V(0) |
407 CPL_RX_PHYS_DSGL_PCITPHNTENB_V(0) |
408 CPL_RX_PHYS_DSGL_PCITPHNT_V(0) |
409 CPL_RX_PHYS_DSGL_DCAID_V(0) |
410 CPL_RX_PHYS_DSGL_NOOFSGENTR_V(walk->nents));
411 phys_cpl->rss_hdr_int.opcode = CPL_RX_PHYS_ADDR;
412 phys_cpl->rss_hdr_int.qid = htons(qid);
413 phys_cpl->rss_hdr_int.hash_val = 0;
add92a81 414 phys_cpl->rss_hdr_int.channel = pci_chan_id;
2f47d580
HJ		 415}
416
417static inline void dsgl_walk_add_page(struct dsgl_walk *walk,
418 size_t size,
c4f6d44d 419 dma_addr_t addr)
2f47d580
HJ		 420{
421 int j;
422
423 if (!size)
424 return;
425 j = walk->nents;
426 walk->to->len[j % 8] = htons(size);
c4f6d44d 427 walk->to->addr[j % 8] = cpu_to_be64(addr);
2f47d580
HJ		 428 j++;
429 if ((j % 8) == 0)
430 walk->to++;
431 walk->nents = j;
432}
433
434static void dsgl_walk_add_sg(struct dsgl_walk *walk,
435 struct scatterlist *sg,
436 unsigned int slen,
437 unsigned int skip)
438{
439 int skip_len = 0;
440 unsigned int left_size = slen, len = 0;
441 unsigned int j = walk->nents;
442 int offset, ent_len;
443
444 if (!slen)
445 return;
446 while (sg && skip) {
447 if (sg_dma_len(sg) <= skip) {
448 skip -= sg_dma_len(sg);
449 skip_len = 0;
450 sg = sg_next(sg);
451 } else {
452 skip_len = skip;
453 skip = 0;
454 }
455 }
456
2956f36c 457 while (left_size && sg) {
2f47d580 458 len = min_t(u32, left_size, sg_dma_len(sg) - skip_len);
2956f36c
HJ		 459 offset = 0;
460 while (len) {
2f47d580
HJ		 461 ent_len = min_t(u32, len, CHCR_DST_SG_SIZE);
462 walk->to->len[j % 8] = htons(ent_len);
463 walk->to->addr[j % 8] = cpu_to_be64(sg_dma_address(sg) +
464 offset + skip_len);
2956f36c
HJ		 465 offset += ent_len;
466 len -= ent_len;
467 j++;
468 if ((j % 8) == 0)
2f47d580 469 walk->to++;
2956f36c 470 }
2f47d580
HJ		 471 walk->last_sg = sg;
472 walk->last_sg_len = min_t(u32, left_size, sg_dma_len(sg) -
473 skip_len) + skip_len;
474 left_size -= min_t(u32, left_size, sg_dma_len(sg) - skip_len);
475 skip_len = 0;
2956f36c
HJ		 476 sg = sg_next(sg);
477 }
2f47d580
HJ		 478 walk->nents = j;
479}
480
481static inline void ulptx_walk_init(struct ulptx_walk *walk,
482 struct ulptx_sgl *ulp)
483{
484 walk->sgl = ulp;
485 walk->nents = 0;
486 walk->pair_idx = 0;
487 walk->pair = ulp->sge;
488 walk->last_sg = NULL;
489 walk->last_sg_len = 0;
490}
491
492static inline void ulptx_walk_end(struct ulptx_walk *walk)
493{
494 walk->sgl->cmd_nsge = htonl(ULPTX_CMD_V(ULP_TX_SC_DSGL) |
495 ULPTX_NSGE_V(walk->nents));
496}
2956f36c 497
2f47d580
HJ		 498
499static inline void ulptx_walk_add_page(struct ulptx_walk *walk,
500 size_t size,
c4f6d44d 501 dma_addr_t addr)
2f47d580
HJ		 502{
503 if (!size)
504 return;
505
506 if (walk->nents == 0) {
507 walk->sgl->len0 = cpu_to_be32(size);
c4f6d44d 508 walk->sgl->addr0 = cpu_to_be64(addr);
2f47d580 509 } else {
c4f6d44d 510 walk->pair->addr[walk->pair_idx] = cpu_to_be64(addr);
2f47d580
HJ		 511 walk->pair->len[walk->pair_idx] = cpu_to_be32(size);
512 walk->pair_idx = !walk->pair_idx;
513 if (!walk->pair_idx)
514 walk->pair++;
515 }
516 walk->nents++;
324429d7
HS		 517}
518
2f47d580 519static void ulptx_walk_add_sg(struct ulptx_walk *walk,
adf1ca61 520 struct scatterlist *sg,
2f47d580
HJ		 521 unsigned int len,
522 unsigned int skip)
324429d7 523{
2f47d580
HJ		 524 int small;
525 int skip_len = 0;
526 unsigned int sgmin;
324429d7 527
2f47d580
HJ		 528 if (!len)
529 return;
2f47d580
HJ		 530 while (sg && skip) {
531 if (sg_dma_len(sg) <= skip) {
532 skip -= sg_dma_len(sg);
533 skip_len = 0;
534 sg = sg_next(sg);
535 } else {
536 skip_len = skip;
537 skip = 0;
538 }
539 }
8daa32b9
HJ		 540 WARN(!sg, "SG should not be null here\n");
541 if (sg && (walk->nents == 0)) {
2f47d580
HJ		 542 small = min_t(unsigned int, sg_dma_len(sg) - skip_len, len);
543 sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
544 walk->sgl->len0 = cpu_to_be32(sgmin);
545 walk->sgl->addr0 = cpu_to_be64(sg_dma_address(sg) + skip_len);
546 walk->nents++;
547 len -= sgmin;
548 walk->last_sg = sg;
549 walk->last_sg_len = sgmin + skip_len;
550 skip_len += sgmin;
551 if (sg_dma_len(sg) == skip_len) {
552 sg = sg_next(sg);
553 skip_len = 0;
554 }
555 }
556
557 while (sg && len) {
558 small = min(sg_dma_len(sg) - skip_len, len);
559 sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
560 walk->pair->len[walk->pair_idx] = cpu_to_be32(sgmin);
561 walk->pair->addr[walk->pair_idx] =
562 cpu_to_be64(sg_dma_address(sg) + skip_len);
563 walk->pair_idx = !walk->pair_idx;
564 walk->nents++;
565 if (!walk->pair_idx)
566 walk->pair++;
567 len -= sgmin;
568 skip_len += sgmin;
569 walk->last_sg = sg;
570 walk->last_sg_len = skip_len;
571 if (sg_dma_len(sg) == skip_len) {
572 sg = sg_next(sg);
573 skip_len = 0;
574 }
324429d7 575 }
324429d7
HS		 576}
577
578static inline int get_cryptoalg_subtype(struct crypto_tfm *tfm)
579{
580 struct crypto_alg *alg = tfm->__crt_alg;
581 struct chcr_alg_template *chcr_crypto_alg =
582 container_of(alg, struct chcr_alg_template, alg.crypto);
583
584 return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK;
585}
586
b8fd1f41
HJ		 587static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
588{
589 struct adapter *adap = netdev2adap(dev);
590 struct sge_uld_txq_info *txq_info =
591 adap->sge.uld_txq_info[CXGB4_TX_CRYPTO];
592 struct sge_uld_txq *txq;
593 int ret = 0;
594
595 local_bh_disable();
596 txq = &txq_info->uldtxq[idx];
597 spin_lock(&txq->sendq.lock);
598 if (txq->full)
599 ret = -1;
600 spin_unlock(&txq->sendq.lock);
601 local_bh_enable();
602 return ret;
603}
604
324429d7
HS		 605static int generate_copy_rrkey(struct ablk_ctx *ablkctx,
606 struct _key_ctx *key_ctx)
607{
608 if (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) {
cc1b156d 609 memcpy(key_ctx->key, ablkctx->rrkey, ablkctx->enckey_len);
324429d7
HS		 610 } else {
611 memcpy(key_ctx->key,
612 ablkctx->key + (ablkctx->enckey_len >> 1),
613 ablkctx->enckey_len >> 1);
cc1b156d
HJ		 614 memcpy(key_ctx->key + (ablkctx->enckey_len >> 1),
615 ablkctx->rrkey, ablkctx->enckey_len >> 1);
324429d7
HS		 616 }
617 return 0;
618}
5110e655
HJ		 619
620static int chcr_hash_ent_in_wr(struct scatterlist *src,
621 unsigned int minsg,
622 unsigned int space,
623 unsigned int srcskip)
624{
625 int srclen = 0;
626 int srcsg = minsg;
627 int soffset = 0, sless;
628
629 if (sg_dma_len(src) == srcskip) {
630 src = sg_next(src);
631 srcskip = 0;
632 }
633 while (src && space > (sgl_ent_len[srcsg + 1])) {
634 sless = min_t(unsigned int, sg_dma_len(src) - soffset - srcskip,
635 CHCR_SRC_SG_SIZE);
636 srclen += sless;
637 soffset += sless;
638 srcsg++;
639 if (sg_dma_len(src) == (soffset + srcskip)) {
640 src = sg_next(src);
641 soffset = 0;
642 srcskip = 0;
643 }
644 }
645 return srclen;
646}
647
b8fd1f41
HJ		 648static int chcr_sg_ent_in_wr(struct scatterlist *src,
649 struct scatterlist *dst,
650 unsigned int minsg,
2f47d580
HJ		 651 unsigned int space,
652 unsigned int srcskip,
653 unsigned int dstskip)
b8fd1f41
HJ		 654{
655 int srclen = 0, dstlen = 0;
2f47d580 656 int srcsg = minsg, dstsg = minsg;
1d693cf6 657 int offset = 0, soffset = 0, less, sless = 0;
b8fd1f41 658
2f47d580
HJ		 659 if (sg_dma_len(src) == srcskip) {
660 src = sg_next(src);
661 srcskip = 0;
662 }
2f47d580
HJ		 663 if (sg_dma_len(dst) == dstskip) {
664 dst = sg_next(dst);
665 dstskip = 0;
666 }
667
668 while (src && dst &&
b8fd1f41 669 space > (sgl_ent_len[srcsg + 1] + dsgl_ent_len[dstsg])) {
1d693cf6
HJ		 670 sless = min_t(unsigned int, sg_dma_len(src) - srcskip - soffset,
671 CHCR_SRC_SG_SIZE);
672 srclen += sless;
b8fd1f41 673 srcsg++;
2956f36c 674 offset = 0;
b8fd1f41
HJ		 675 while (dst && ((dstsg + 1) <= MAX_DSGL_ENT) &&
676 space > (sgl_ent_len[srcsg] + dsgl_ent_len[dstsg + 1])) {
677 if (srclen <= dstlen)
678 break;
2f47d580 679 less = min_t(unsigned int, sg_dma_len(dst) - offset -
db6deea4 680 dstskip, CHCR_DST_SG_SIZE);
2956f36c
HJ		 681 dstlen += less;
682 offset += less;
1d693cf6 683 if ((offset + dstskip) == sg_dma_len(dst)) {
2956f36c
HJ		 684 dst = sg_next(dst);
685 offset = 0;
686 }
b8fd1f41 687 dstsg++;
2f47d580 688 dstskip = 0;
b8fd1f41 689 }
1d693cf6
HJ		 690 soffset += sless;
691 if ((soffset + srcskip) == sg_dma_len(src)) {
692 src = sg_next(src);
693 srcskip = 0;
694 soffset = 0;
695 }
696
b8fd1f41 697 }
b8fd1f41
HJ		 698 return min(srclen, dstlen);
699}
700
28874f26 701static int chcr_cipher_fallback(struct crypto_sync_skcipher *cipher,
b8fd1f41
HJ		 702 u32 flags,
703 struct scatterlist *src,
704 struct scatterlist *dst,
705 unsigned int nbytes,
706 u8 *iv,
707 unsigned short op_type)
708{
709 int err;
710
28874f26 711 SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, cipher);
6faa0f57 712
28874f26 713 skcipher_request_set_sync_tfm(subreq, cipher);
b8fd1f41
HJ		 714 skcipher_request_set_callback(subreq, flags, NULL, NULL);
715 skcipher_request_set_crypt(subreq, src, dst,
716 nbytes, iv);
717
718 err = op_type ? crypto_skcipher_decrypt(subreq) :
719 crypto_skcipher_encrypt(subreq);
720 skcipher_request_zero(subreq);
721
722 return err;
324429d7 723
b8fd1f41 724}
324429d7 725static inline void create_wreq(struct chcr_context *ctx,
358961d1 726 struct chcr_wr *chcr_req,
2f47d580
HJ		 727 struct crypto_async_request *req,
728 unsigned int imm,
570265bf 729 int hash_sz,
2f47d580 730 unsigned int len16,
2512a624
HJ		 731 unsigned int sc_len,
732 unsigned int lcb)
324429d7
HS		 733{
734 struct uld_ctx *u_ctx = ULD_CTX(ctx);
72a56ca9 735 int qid = u_ctx->lldi.rxq_ids[ctx->rx_qidx];
324429d7 736
324429d7 737
570265bf 738 chcr_req->wreq.op_to_cctx_size = FILL_WR_OP_CCTX_SIZE;
358961d1 739 chcr_req->wreq.pld_size_hash_size =
570265bf 740 htonl(FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(hash_sz));
358961d1 741 chcr_req->wreq.len16_pkd =
2f47d580 742 htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(len16, 16)));
358961d1
HJ		 743 chcr_req->wreq.cookie = cpu_to_be64((uintptr_t)req);
744 chcr_req->wreq.rx_chid_to_rx_q_id =
d5a4dfbd 745 FILL_WR_RX_Q_ID(ctx->tx_chan_id, qid,
570265bf 746 !!lcb, ctx->tx_qidx);
324429d7 747
add92a81 748 chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(ctx->tx_chan_id,
8a13449f 749 qid);
2f47d580
HJ		 750 chcr_req->ulptx.len = htonl((DIV_ROUND_UP(len16, 16) -
751 ((sizeof(chcr_req->wreq)) >> 4)));
324429d7 752
2f47d580 753 chcr_req->sc_imm.cmd_more = FILL_CMD_MORE(!imm);
358961d1 754 chcr_req->sc_imm.len = cpu_to_be32(sizeof(struct cpl_tx_sec_pdu) +
2f47d580 755 sizeof(chcr_req->key_ctx) + sc_len);
324429d7
HS		 756}
757
758/**
759 * create_cipher_wr - form the WR for cipher operations
760 * @req: cipher req.
761 * @ctx: crypto driver context of the request.
762 * @qid: ingress qid where response of this WR should be received.
763 * @op_type: encryption or decryption
764 */
b8fd1f41 765static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
324429d7 766{
b8fd1f41 767 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req);
2f47d580 768 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
324429d7 769 struct sk_buff *skb = NULL;
358961d1 770 struct chcr_wr *chcr_req;
324429d7 771 struct cpl_rx_phys_dsgl *phys_cpl;
2f47d580 772 struct ulptx_sgl *ulptx;
b8fd1f41
HJ		 773 struct chcr_blkcipher_req_ctx *reqctx =
774 ablkcipher_request_ctx(wrparam->req);
2f47d580 775 unsigned int temp = 0, transhdr_len, dst_size;
b8fd1f41 776 int error;
2956f36c 777 int nents;
2f47d580 778 unsigned int kctx_len;
b8fd1f41
HJ		 779 gfp_t flags = wrparam->req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
780 GFP_KERNEL : GFP_ATOMIC;
2f47d580 781 struct adapter *adap = padap(c_ctx(tfm)->dev);
324429d7 782
2f47d580
HJ		 783 nents = sg_nents_xlen(reqctx->dstsg, wrparam->bytes, CHCR_DST_SG_SIZE,
784 reqctx->dst_ofst);
335bcc4a 785 dst_size = get_space_for_phys_dsgl(nents);
125d01ca 786 kctx_len = roundup(ablkctx->enckey_len, 16);
2f47d580
HJ		 787 transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
788 nents = sg_nents_xlen(reqctx->srcsg, wrparam->bytes,
789 CHCR_SRC_SG_SIZE, reqctx->src_ofst);
335bcc4a
HJ		 790 temp = reqctx->imm ? roundup(wrparam->bytes, 16) :
791 (sgl_len(nents) * 8);
2f47d580 792 transhdr_len += temp;
125d01ca 793 transhdr_len = roundup(transhdr_len, 16);
2f47d580 794 skb = alloc_skb(SGE_MAX_WR_LEN, flags);
b8fd1f41
HJ		 795 if (!skb) {
796 error = -ENOMEM;
797 goto err;
798 }
de77b966 799 chcr_req = __skb_put_zero(skb, transhdr_len);
358961d1 800 chcr_req->sec_cpl.op_ivinsrtofst =
d5a4dfbd 801 FILL_SEC_CPL_OP_IVINSR(c_ctx(tfm)->tx_chan_id, 2, 1);
358961d1 802
2f47d580 803 chcr_req->sec_cpl.pldlen = htonl(IV + wrparam->bytes);
358961d1 804 chcr_req->sec_cpl.aadstart_cipherstop_hi =
2f47d580 805 FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, IV + 1, 0);
358961d1
HJ		 806
807 chcr_req->sec_cpl.cipherstop_lo_authinsert =
808 FILL_SEC_CPL_AUTHINSERT(0, 0, 0, 0);
b8fd1f41 809 chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, 0,
324429d7 810 ablkctx->ciph_mode,
2f47d580 811 0, 0, IV >> 1);
358961d1 812 chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 0,
335bcc4a 813 0, 1, dst_size);
324429d7 814
358961d1 815 chcr_req->key_ctx.ctx_hdr = ablkctx->key_ctx_hdr;
b8fd1f41
HJ		 816 if ((reqctx->op == CHCR_DECRYPT_OP) &&
817 (!(get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
818 CRYPTO_ALG_SUB_TYPE_CTR)) &&
819 (!(get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
820 CRYPTO_ALG_SUB_TYPE_CTR_RFC3686))) {
358961d1 821 generate_copy_rrkey(ablkctx, &chcr_req->key_ctx);
324429d7 822 } else {
b8fd1f41
HJ		 823 if ((ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) ||
824 (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CTR)) {
358961d1
HJ		 825 memcpy(chcr_req->key_ctx.key, ablkctx->key,
826 ablkctx->enckey_len);
324429d7 827 } else {
358961d1 828 memcpy(chcr_req->key_ctx.key, ablkctx->key +
324429d7
HS		 829 (ablkctx->enckey_len >> 1),
830 ablkctx->enckey_len >> 1);
358961d1 831 memcpy(chcr_req->key_ctx.key +
324429d7
HS		 832 (ablkctx->enckey_len >> 1),
833 ablkctx->key,
834 ablkctx->enckey_len >> 1);
835 }
836 }
358961d1 837 phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
2f47d580
HJ		 838 ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
839 chcr_add_cipher_src_ent(wrparam->req, ulptx, wrparam);
840 chcr_add_cipher_dst_ent(wrparam->req, phys_cpl, wrparam, wrparam->qid);
324429d7 841
ee0863ba 842 atomic_inc(&adap->chcr_stats.cipher_rqst);
335bcc4a
HJ		 843 temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + kctx_len + IV
844 + (reqctx->imm ? (wrparam->bytes) : 0);
2f47d580
HJ		 845 create_wreq(c_ctx(tfm), chcr_req, &(wrparam->req->base), reqctx->imm, 0,
846 transhdr_len, temp,
2512a624 847 ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC);
5c86a8ff 848 reqctx->skb = skb;
5fb78dba
HJ		 849
850 if (reqctx->op && (ablkctx->ciph_mode ==
851 CHCR_SCMD_CIPHER_MODE_AES_CBC))
852 sg_pcopy_to_buffer(wrparam->req->src,
853 sg_nents(wrparam->req->src), wrparam->req->info, 16,
854 reqctx->processed + wrparam->bytes - AES_BLOCK_SIZE);
855
324429d7 856 return skb;
b8fd1f41
HJ		 857err:
858 return ERR_PTR(error);
859}
860
861static inline int chcr_keyctx_ck_size(unsigned int keylen)
862{
863 int ck_size = 0;
864
865 if (keylen == AES_KEYSIZE_128)
866 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
867 else if (keylen == AES_KEYSIZE_192)
868 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
869 else if (keylen == AES_KEYSIZE_256)
870 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
871 else
872 ck_size = 0;
873
874 return ck_size;
875}
876static int chcr_cipher_fallback_setkey(struct crypto_ablkcipher *cipher,
877 const u8 *key,
878 unsigned int keylen)
879{
880 struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
2f47d580 881 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
b8fd1f41
HJ		 882 int err = 0;
883
28874f26
KC		 884 crypto_sync_skcipher_clear_flags(ablkctx->sw_cipher,
885 CRYPTO_TFM_REQ_MASK);
886 crypto_sync_skcipher_set_flags(ablkctx->sw_cipher,
887 cipher->base.crt_flags & CRYPTO_TFM_REQ_MASK);
888 err = crypto_sync_skcipher_setkey(ablkctx->sw_cipher, key, keylen);
b8fd1f41
HJ		 889 tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
890 tfm->crt_flags |=
28874f26 891 crypto_sync_skcipher_get_flags(ablkctx->sw_cipher) &
b8fd1f41
HJ		 892 CRYPTO_TFM_RES_MASK;
893 return err;
324429d7
HS		 894}
895
b8fd1f41
HJ		 896static int chcr_aes_cbc_setkey(struct crypto_ablkcipher *cipher,
897 const u8 *key,
324429d7
HS		 898 unsigned int keylen)
899{
2f47d580 900 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
324429d7
HS		 901 unsigned int ck_size, context_size;
902 u16 alignment = 0;
b8fd1f41 903 int err;
324429d7 904
b8fd1f41
HJ		 905 err = chcr_cipher_fallback_setkey(cipher, key, keylen);
906 if (err)
324429d7 907 goto badkey_err;
b8fd1f41
HJ		 908
909 ck_size = chcr_keyctx_ck_size(keylen);
910 alignment = ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192 ? 8 : 0;
cc1b156d
HJ		 911 memcpy(ablkctx->key, key, keylen);
912 ablkctx->enckey_len = keylen;
913 get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, keylen << 3);
324429d7
HS		 914 context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD +
915 keylen + alignment) >> 4;
916
917 ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY,
918 0, 0, context_size);
919 ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CBC;
920 return 0;
921badkey_err:
b8fd1f41 922 crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
324429d7 923 ablkctx->enckey_len = 0;
b8fd1f41
HJ		 924
925 return err;
324429d7
HS		 926}
927
b8fd1f41
HJ		 928static int chcr_aes_ctr_setkey(struct crypto_ablkcipher *cipher,
929 const u8 *key,
930 unsigned int keylen)
324429d7 931{
2f47d580 932 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
b8fd1f41
HJ		 933 unsigned int ck_size, context_size;
934 u16 alignment = 0;
935 int err;
936
937 err = chcr_cipher_fallback_setkey(cipher, key, keylen);
938 if (err)
939 goto badkey_err;
940 ck_size = chcr_keyctx_ck_size(keylen);
941 alignment = (ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192) ? 8 : 0;
942 memcpy(ablkctx->key, key, keylen);
943 ablkctx->enckey_len = keylen;
944 context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD +
945 keylen + alignment) >> 4;
946
947 ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY,
948 0, 0, context_size);
949 ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CTR;
950
951 return 0;
952badkey_err:
953 crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
954 ablkctx->enckey_len = 0;
955
956 return err;
957}
958
959static int chcr_aes_rfc3686_setkey(struct crypto_ablkcipher *cipher,
960 const u8 *key,
961 unsigned int keylen)
962{
2f47d580 963 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
b8fd1f41
HJ		 964 unsigned int ck_size, context_size;
965 u16 alignment = 0;
966 int err;
967
968 if (keylen < CTR_RFC3686_NONCE_SIZE)
969 return -EINVAL;
970 memcpy(ablkctx->nonce, key + (keylen - CTR_RFC3686_NONCE_SIZE),
971 CTR_RFC3686_NONCE_SIZE);
972
973 keylen -= CTR_RFC3686_NONCE_SIZE;
974 err = chcr_cipher_fallback_setkey(cipher, key, keylen);
975 if (err)
976 goto badkey_err;
977
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;
990badkey_err:
991 crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
992 ablkctx->enckey_len = 0;
993
994 return err;
995}
996static void ctr_add_iv(u8 *dstiv, u8 *srciv, u32 add)
997{
998 unsigned int size = AES_BLOCK_SIZE;
999 __be32 *b = (__be32 *)(dstiv + size);
1000 u32 c, prev;
1001
1002 memcpy(dstiv, srciv, AES_BLOCK_SIZE);
1003 for (; size >= 4; size -= 4) {
1004 prev = be32_to_cpu(*--b);
1005 c = prev + add;
1006 *b = cpu_to_be32(c);
1007 if (prev < c)
1008 break;
1009 add = 1;
1010 }
1011
1012}
1013
1014static unsigned int adjust_ctr_overflow(u8 *iv, u32 bytes)
1015{
1016 __be32 *b = (__be32 *)(iv + AES_BLOCK_SIZE);
1017 u64 c;
1018 u32 temp = be32_to_cpu(*--b);
1019
1020 temp = ~temp;
1021 c = (u64)temp + 1; // No of block can processed withou overflow
1022 if ((bytes / AES_BLOCK_SIZE) > c)
1023 bytes = c * AES_BLOCK_SIZE;
1024 return bytes;
1025}
1026
209897d5
HJ		 1027static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv,
1028 u32 isfinal)
b8fd1f41
HJ		 1029{
1030 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
2f47d580 1031 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
b8fd1f41
HJ		 1032 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
1033 struct crypto_cipher *cipher;
1034 int ret, i;
1035 u8 *key;
1036 unsigned int keylen;
de1a00ac
HJ		 1037 int round = reqctx->last_req_len / AES_BLOCK_SIZE;
1038 int round8 = round / 8;
b8fd1f41 1039
d3f1d2f7 1040 cipher = ablkctx->aes_generic;
de1a00ac 1041 memcpy(iv, reqctx->iv, AES_BLOCK_SIZE);
b8fd1f41 1042
b8fd1f41
HJ		 1043 keylen = ablkctx->enckey_len / 2;
1044 key = ablkctx->key + keylen;
1045 ret = crypto_cipher_setkey(cipher, key, keylen);
1046 if (ret)
d3f1d2f7 1047 goto out;
335bcc4a 1048 crypto_cipher_encrypt_one(cipher, iv, iv);
de1a00ac
HJ		 1049 for (i = 0; i < round8; i++)
1050 gf128mul_x8_ble((le128 *)iv, (le128 *)iv);
1051
1052 for (i = 0; i < (round % 8); i++)
b8fd1f41
HJ		 1053 gf128mul_x_ble((le128 *)iv, (le128 *)iv);
1054
209897d5
HJ		 1055 if (!isfinal)
1056 crypto_cipher_decrypt_one(cipher, iv, iv);
b8fd1f41
HJ		 1057out:
1058 return ret;
1059}
1060
1061static int chcr_update_cipher_iv(struct ablkcipher_request *req,
1062 struct cpl_fw6_pld *fw6_pld, u8 *iv)
1063{
1064 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
1065 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
1066 int subtype = get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm));
ab677ff4 1067 int ret = 0;
324429d7 1068
b8fd1f41
HJ		 1069 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
1070 ctr_add_iv(iv, req->info, (reqctx->processed /
1071 AES_BLOCK_SIZE));
1072 else if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_RFC3686)
1073 *(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE +
1074 CTR_RFC3686_IV_SIZE) = cpu_to_be32((reqctx->processed /
1075 AES_BLOCK_SIZE) + 1);
1076 else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS)
209897d5 1077 ret = chcr_update_tweak(req, iv, 0);
b8fd1f41
HJ		 1078 else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) {
1079 if (reqctx->op)
5fb78dba
HJ		 1080 /*Updated before sending last WR*/
1081 memcpy(iv, req->info, AES_BLOCK_SIZE);
b8fd1f41
HJ		 1082 else
1083 memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE);
1084 }
1085
324429d7 1086 return ret;
b8fd1f41 1087
324429d7
HS		 1088}
1089
b8fd1f41
HJ		 1090/* We need separate function for final iv because in rfc3686 Initial counter
1091 * starts from 1 and buffer size of iv is 8 byte only which remains constant
1092 * for subsequent update requests
1093 */
1094
1095static int chcr_final_cipher_iv(struct ablkcipher_request *req,
1096 struct cpl_fw6_pld *fw6_pld, u8 *iv)
1097{
1098 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
1099 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
1100 int subtype = get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm));
1101 int ret = 0;
1102
1103 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
1104 ctr_add_iv(iv, req->info, (reqctx->processed /
1105 AES_BLOCK_SIZE));
1106 else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS)
209897d5 1107 ret = chcr_update_tweak(req, iv, 1);
b8fd1f41 1108 else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) {
5fb78dba
HJ		 1109 /*Already updated for Decrypt*/
1110 if (!reqctx->op)
b8fd1f41
HJ		 1111 memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE);
1112
1113 }
1114 return ret;
1115
1116}
1117
b8fd1f41
HJ		 1118static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
1119 unsigned char *input, int err)
324429d7
HS		 1120{
1121 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
2f47d580
HJ		 1122 struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
1123 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
324429d7 1124 struct sk_buff *skb;
b8fd1f41
HJ		 1125 struct cpl_fw6_pld *fw6_pld = (struct cpl_fw6_pld *)input;
1126 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
1127 struct cipher_wr_param wrparam;
fef4912b 1128 struct chcr_dev *dev = c_ctx(tfm)->dev;
b8fd1f41
HJ		 1129 int bytes;
1130
b8fd1f41 1131 if (err)
2f47d580 1132 goto unmap;
b8fd1f41 1133 if (req->nbytes == reqctx->processed) {
2f47d580
HJ		 1134 chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
1135 req);
b8fd1f41
HJ		 1136 err = chcr_final_cipher_iv(req, fw6_pld, req->info);
1137 goto complete;
1138 }
1139
2f47d580 1140 if (!reqctx->imm) {
335bcc4a 1141 bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 0,
5110e655 1142 CIP_SPACE_LEFT(ablkctx->enckey_len),
2f47d580 1143 reqctx->src_ofst, reqctx->dst_ofst);
db6deea4
HJ		 1144 if ((bytes + reqctx->processed) >= req->nbytes)
1145 bytes = req->nbytes - reqctx->processed;
1146 else
125d01ca 1147 bytes = rounddown(bytes, 16);
2f47d580
HJ		 1148 } else {
1149 /*CTR mode counter overfloa*/
1150 bytes = req->nbytes - reqctx->processed;
1151 }
b8fd1f41
HJ		 1152 err = chcr_update_cipher_iv(req, fw6_pld, reqctx->iv);
1153 if (err)
2f47d580 1154 goto unmap;
b8fd1f41
HJ		 1155
1156 if (unlikely(bytes == 0)) {
2f47d580
HJ		 1157 chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
1158 req);
b8fd1f41
HJ		 1159 err = chcr_cipher_fallback(ablkctx->sw_cipher,
1160 req->base.flags,
2f47d580
HJ		 1161 req->src,
1162 req->dst,
1163 req->nbytes,
1164 req->info,
b8fd1f41
HJ		 1165 reqctx->op);
1166 goto complete;
1167 }
1168
1169 if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
1170 CRYPTO_ALG_SUB_TYPE_CTR)
1171 bytes = adjust_ctr_overflow(reqctx->iv, bytes);
2f47d580 1172 wrparam.qid = u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx];
b8fd1f41
HJ		 1173 wrparam.req = req;
1174 wrparam.bytes = bytes;
1175 skb = create_cipher_wr(&wrparam);
1176 if (IS_ERR(skb)) {
1177 pr_err("chcr : %s : Failed to form WR. No memory\n", __func__);
1178 err = PTR_ERR(skb);
2f47d580 1179 goto unmap;
b8fd1f41
HJ		 1180 }
1181 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1182 set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
b8fd1f41 1183 chcr_send_wr(skb);
2f47d580
HJ		 1184 reqctx->last_req_len = bytes;
1185 reqctx->processed += bytes;
b8fd1f41 1186 return 0;
2f47d580
HJ		 1187unmap:
1188 chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
b8fd1f41 1189complete:
fef4912b 1190 chcr_dec_wrcount(dev);
b8fd1f41
HJ		 1191 req->base.complete(&req->base, err);
1192 return err;
1193}
1194
1195static int process_cipher(struct ablkcipher_request *req,
1196 unsigned short qid,
1197 struct sk_buff **skb,
1198 unsigned short op_type)
1199{
1200 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
1201 unsigned int ivsize = crypto_ablkcipher_ivsize(tfm);
1202 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
2f47d580 1203 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
b8fd1f41 1204 struct cipher_wr_param wrparam;
2956f36c 1205 int bytes, err = -EINVAL;
b8fd1f41 1206
b8fd1f41
HJ		 1207 reqctx->processed = 0;
1208 if (!req->info)
1209 goto error;
1210 if ((ablkctx->enckey_len == 0) || (ivsize > AES_BLOCK_SIZE) ||
1211 (req->nbytes == 0) ||
1212 (req->nbytes % crypto_ablkcipher_blocksize(tfm))) {
1213 pr_err("AES: Invalid value of Key Len %d nbytes %d IV Len %d\n",
1214 ablkctx->enckey_len, req->nbytes, ivsize);
1215 goto error;
1216 }
fef4912b
HJ		 1217
1218 err = chcr_cipher_dma_map(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
1219 if (err)
1220 goto error;
2f47d580
HJ		 1221 if (req->nbytes < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) +
1222 AES_MIN_KEY_SIZE +
1223 sizeof(struct cpl_rx_phys_dsgl) +
1224 /*Min dsgl size*/
1225 32))) {
1226 /* Can be sent as Imm*/
1227 unsigned int dnents = 0, transhdr_len, phys_dsgl, kctx_len;
1228
1229 dnents = sg_nents_xlen(req->dst, req->nbytes,
1230 CHCR_DST_SG_SIZE, 0);
2f47d580 1231 phys_dsgl = get_space_for_phys_dsgl(dnents);
125d01ca 1232 kctx_len = roundup(ablkctx->enckey_len, 16);
2f47d580
HJ		 1233 transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
1234 reqctx->imm = (transhdr_len + IV + req->nbytes) <=
1235 SGE_MAX_WR_LEN;
1236 bytes = IV + req->nbytes;
1237
1238 } else {
1239 reqctx->imm = 0;
1240 }
1241
1242 if (!reqctx->imm) {
335bcc4a 1243 bytes = chcr_sg_ent_in_wr(req->src, req->dst, 0,
5110e655 1244 CIP_SPACE_LEFT(ablkctx->enckey_len),
2f47d580 1245 0, 0);
db6deea4
HJ		 1246 if ((bytes + reqctx->processed) >= req->nbytes)
1247 bytes = req->nbytes - reqctx->processed;
1248 else
125d01ca 1249 bytes = rounddown(bytes, 16);
2f47d580 1250 } else {
b8fd1f41 1251 bytes = req->nbytes;
2f47d580 1252 }
b8fd1f41 1253 if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
db6deea4 1254 CRYPTO_ALG_SUB_TYPE_CTR) {
b8fd1f41
HJ		 1255 bytes = adjust_ctr_overflow(req->info, bytes);
1256 }
1257 if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
1258 CRYPTO_ALG_SUB_TYPE_CTR_RFC3686) {
1259 memcpy(reqctx->iv, ablkctx->nonce, CTR_RFC3686_NONCE_SIZE);
1260 memcpy(reqctx->iv + CTR_RFC3686_NONCE_SIZE, req->info,
1261 CTR_RFC3686_IV_SIZE);
1262
1263 /* initialize counter portion of counter block */
1264 *(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE +
1265 CTR_RFC3686_IV_SIZE) = cpu_to_be32(1);
1266
1267 } else {
1268
2f47d580 1269 memcpy(reqctx->iv, req->info, IV);
b8fd1f41
HJ		 1270 }
1271 if (unlikely(bytes == 0)) {
2f47d580
HJ		 1272 chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
1273 req);
b8fd1f41
HJ		 1274 err = chcr_cipher_fallback(ablkctx->sw_cipher,
1275 req->base.flags,
1276 req->src,
1277 req->dst,
1278 req->nbytes,
7ffb9118 1279 reqctx->iv,
b8fd1f41
HJ		 1280 op_type);
1281 goto error;
1282 }
b8fd1f41 1283 reqctx->op = op_type;
2f47d580
HJ		 1284 reqctx->srcsg = req->src;
1285 reqctx->dstsg = req->dst;
1286 reqctx->src_ofst = 0;
1287 reqctx->dst_ofst = 0;
b8fd1f41
HJ		 1288 wrparam.qid = qid;
1289 wrparam.req = req;
1290 wrparam.bytes = bytes;
1291 *skb = create_cipher_wr(&wrparam);
1292 if (IS_ERR(*skb)) {
1293 err = PTR_ERR(*skb);
2f47d580 1294 goto unmap;
b8fd1f41 1295 }
2f47d580
HJ		 1296 reqctx->processed = bytes;
1297 reqctx->last_req_len = bytes;
b8fd1f41
HJ		 1298
1299 return 0;
2f47d580
HJ		 1300unmap:
1301 chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
b8fd1f41
HJ		 1302error:
1303 return err;
1304}
1305
1306static int chcr_aes_encrypt(struct ablkcipher_request *req)
1307{
1308 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
fef4912b 1309 struct chcr_dev *dev = c_ctx(tfm)->dev;
b8fd1f41 1310 struct sk_buff *skb = NULL;
6faa0f57 1311 int err, isfull = 0;
2f47d580 1312 struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
324429d7 1313
fef4912b
HJ		 1314 err = chcr_inc_wrcount(dev);
1315 if (err)
1316 return -ENXIO;
324429d7 1317 if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
2f47d580 1318 c_ctx(tfm)->tx_qidx))) {
6faa0f57 1319 isfull = 1;
fef4912b
HJ		 1320 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
1321 err = -ENOSPC;
1322 goto error;
1323 }
324429d7
HS		 1324 }
1325
2f47d580
HJ		 1326 err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx],
1327 &skb, CHCR_ENCRYPT_OP);
b8fd1f41
HJ		 1328 if (err || !skb)
1329 return err;
324429d7 1330 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1331 set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
324429d7 1332 chcr_send_wr(skb);
6faa0f57 1333 return isfull ? -EBUSY : -EINPROGRESS;
fef4912b
HJ		 1334error:
1335 chcr_dec_wrcount(dev);
1336 return err;
324429d7
HS		 1337}
1338
1339static int chcr_aes_decrypt(struct ablkcipher_request *req)
1340{
1341 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
2f47d580 1342 struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
fef4912b 1343 struct chcr_dev *dev = c_ctx(tfm)->dev;
b8fd1f41 1344 struct sk_buff *skb = NULL;
6faa0f57 1345 int err, isfull = 0;
324429d7 1346
fef4912b
HJ		 1347 err = chcr_inc_wrcount(dev);
1348 if (err)
1349 return -ENXIO;
1350
324429d7 1351 if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
2f47d580 1352 c_ctx(tfm)->tx_qidx))) {
6faa0f57 1353 isfull = 1;
324429d7 1354 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
6faa0f57 1355 return -ENOSPC;
324429d7
HS		 1356 }
1357
fc6176a2
CIK		 1358 err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx],
1359 &skb, CHCR_DECRYPT_OP);
b8fd1f41
HJ		 1360 if (err || !skb)
1361 return err;
324429d7 1362 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1363 set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
324429d7 1364 chcr_send_wr(skb);
6faa0f57 1365 return isfull ? -EBUSY : -EINPROGRESS;
324429d7
HS		 1366}
1367
1368static int chcr_device_init(struct chcr_context *ctx)
1369{
14c19b17 1370 struct uld_ctx *u_ctx = NULL;
72a56ca9 1371 struct adapter *adap;
324429d7 1372 unsigned int id;
72a56ca9 1373 int txq_perchan, txq_idx, ntxq;
324429d7
HS		 1374 int err = 0, rxq_perchan, rxq_idx;
1375
1376 id = smp_processor_id();
1377 if (!ctx->dev) {
14c19b17
HJ		 1378 u_ctx = assign_chcr_device();
1379 if (!u_ctx) {
fef4912b 1380 err = -ENXIO;
324429d7
HS		 1381 pr_err("chcr device assignment fails\n");
1382 goto out;
1383 }
fef4912b 1384 ctx->dev = &u_ctx->dev;
72a56ca9 1385 adap = padap(ctx->dev);
a1c6fd43 1386 ntxq = u_ctx->lldi.ntxq;
324429d7 1387 rxq_perchan = u_ctx->lldi.nrxq / u_ctx->lldi.nchan;
72a56ca9 1388 txq_perchan = ntxq / u_ctx->lldi.nchan;
324429d7 1389 spin_lock(&ctx->dev->lock_chcr_dev);
add92a81 1390 ctx->tx_chan_id = ctx->dev->tx_channel_id;
ab677ff4 1391 ctx->dev->tx_channel_id = !ctx->dev->tx_channel_id;
324429d7 1392 spin_unlock(&ctx->dev->lock_chcr_dev);
add92a81
HJ		 1393 rxq_idx = ctx->tx_chan_id * rxq_perchan;
1394 rxq_idx += id % rxq_perchan;
1395 txq_idx = ctx->tx_chan_id * txq_perchan;
1396 txq_idx += id % txq_perchan;
1397 ctx->rx_qidx = rxq_idx;
1398 ctx->tx_qidx = txq_idx;
1399 /* Channel Id used by SGE to forward packet to Host.
1400 * Same value should be used in cpl_fw6_pld RSS_CH field
1401 * by FW. Driver programs PCI channel ID to be used in fw
1402 * at the time of queue allocation with value "pi->tx_chan"
1403 */
1404 ctx->pci_chan_id = txq_idx / txq_perchan;
324429d7
HS		 1405 }
1406out:
1407 return err;
1408}
1409
1410static int chcr_cra_init(struct crypto_tfm *tfm)
1411{
b8fd1f41
HJ		 1412 struct crypto_alg *alg = tfm->__crt_alg;
1413 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
1414 struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
1415
28874f26
KC		 1416 ablkctx->sw_cipher = crypto_alloc_sync_skcipher(alg->cra_name, 0,
1417 CRYPTO_ALG_NEED_FALLBACK);
b8fd1f41
HJ		 1418 if (IS_ERR(ablkctx->sw_cipher)) {
1419 pr_err("failed to allocate fallback for %s\n", alg->cra_name);
1420 return PTR_ERR(ablkctx->sw_cipher);
1421 }
d3f1d2f7
HJ		 1422
1423 if (get_cryptoalg_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_XTS) {
1424 /* To update tweak*/
1425 ablkctx->aes_generic = crypto_alloc_cipher("aes-generic", 0, 0);
1426 if (IS_ERR(ablkctx->aes_generic)) {
1427 pr_err("failed to allocate aes cipher for tweak\n");
1428 return PTR_ERR(ablkctx->aes_generic);
1429 }
1430 } else
1431 ablkctx->aes_generic = NULL;
1432
324429d7
HS		 1433 tfm->crt_ablkcipher.reqsize = sizeof(struct chcr_blkcipher_req_ctx);
1434 return chcr_device_init(crypto_tfm_ctx(tfm));
1435}
1436
b8fd1f41
HJ		 1437static int chcr_rfc3686_init(struct crypto_tfm *tfm)
1438{
1439 struct crypto_alg *alg = tfm->__crt_alg;
1440 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
1441 struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
1442
1443 /*RFC3686 initialises IV counter value to 1, rfc3686(ctr(aes))
1444 * cannot be used as fallback in chcr_handle_cipher_response
1445 */
28874f26
KC		 1446 ablkctx->sw_cipher = crypto_alloc_sync_skcipher("ctr(aes)", 0,
1447 CRYPTO_ALG_NEED_FALLBACK);
b8fd1f41
HJ		 1448 if (IS_ERR(ablkctx->sw_cipher)) {
1449 pr_err("failed to allocate fallback for %s\n", alg->cra_name);
1450 return PTR_ERR(ablkctx->sw_cipher);
1451 }
1452 tfm->crt_ablkcipher.reqsize = sizeof(struct chcr_blkcipher_req_ctx);
1453 return chcr_device_init(crypto_tfm_ctx(tfm));
1454}
1455
1456
1457static void chcr_cra_exit(struct crypto_tfm *tfm)
1458{
1459 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
1460 struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
1461
28874f26 1462 crypto_free_sync_skcipher(ablkctx->sw_cipher);
d3f1d2f7
HJ		 1463 if (ablkctx->aes_generic)
1464 crypto_free_cipher(ablkctx->aes_generic);
b8fd1f41
HJ		 1465}
1466
324429d7
HS		 1467static int get_alg_config(struct algo_param *params,
1468 unsigned int auth_size)
1469{
1470 switch (auth_size) {
1471 case SHA1_DIGEST_SIZE:
1472 params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_160;
1473 params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA1;
1474 params->result_size = SHA1_DIGEST_SIZE;
1475 break;
1476 case SHA224_DIGEST_SIZE:
1477 params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
1478 params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA224;
1479 params->result_size = SHA256_DIGEST_SIZE;
1480 break;
1481 case SHA256_DIGEST_SIZE:
1482 params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
1483 params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA256;
1484 params->result_size = SHA256_DIGEST_SIZE;
1485 break;
1486 case SHA384_DIGEST_SIZE:
1487 params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512;
1488 params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_384;
1489 params->result_size = SHA512_DIGEST_SIZE;
1490 break;
1491 case SHA512_DIGEST_SIZE:
1492 params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512;
1493 params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_512;
1494 params->result_size = SHA512_DIGEST_SIZE;
1495 break;
1496 default:
1497 pr_err("chcr : ERROR, unsupported digest size\n");
1498 return -EINVAL;
1499 }
1500 return 0;
1501}
1502
e7922729 1503static inline void chcr_free_shash(struct crypto_shash *base_hash)
324429d7 1504{
e7922729 1505 crypto_free_shash(base_hash);
324429d7
HS		 1506}
1507
1508/**
358961d1 1509 * create_hash_wr - Create hash work request
324429d7
HS		 1510 * @req - Cipher req base
1511 */
358961d1 1512static struct sk_buff *create_hash_wr(struct ahash_request *req,
2debd332 1513 struct hash_wr_param *param)
324429d7
HS		 1514{
1515 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
1516 struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
2f47d580 1517 struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm));
324429d7 1518 struct sk_buff *skb = NULL;
2f47d580 1519 struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm));
358961d1 1520 struct chcr_wr *chcr_req;
2f47d580 1521 struct ulptx_sgl *ulptx;
5110e655
HJ		 1522 unsigned int nents = 0, transhdr_len;
1523 unsigned int temp = 0;
358961d1
HJ		 1524 gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
1525 GFP_ATOMIC;
2f47d580
HJ		 1526 struct adapter *adap = padap(h_ctx(tfm)->dev);
1527 int error = 0;
324429d7 1528
5110e655
HJ		 1529 transhdr_len = HASH_TRANSHDR_SIZE(param->kctx_len);
1530 req_ctx->hctx_wr.imm = (transhdr_len + param->bfr_len +
1531 param->sg_len) <= SGE_MAX_WR_LEN;
1532 nents = sg_nents_xlen(req_ctx->hctx_wr.srcsg, param->sg_len,
1533 CHCR_SRC_SG_SIZE, req_ctx->hctx_wr.src_ofst);
2f47d580 1534 nents += param->bfr_len ? 1 : 0;
5110e655
HJ		 1535 transhdr_len += req_ctx->hctx_wr.imm ? roundup(param->bfr_len +
1536 param->sg_len, 16) : (sgl_len(nents) * 8);
125d01ca 1537 transhdr_len = roundup(transhdr_len, 16);
2f47d580 1538
5110e655 1539 skb = alloc_skb(transhdr_len, flags);
324429d7 1540 if (!skb)
2f47d580 1541 return ERR_PTR(-ENOMEM);
de77b966 1542 chcr_req = __skb_put_zero(skb, transhdr_len);
324429d7 1543
358961d1 1544 chcr_req->sec_cpl.op_ivinsrtofst =
d5a4dfbd 1545 FILL_SEC_CPL_OP_IVINSR(h_ctx(tfm)->tx_chan_id, 2, 0);
358961d1 1546 chcr_req->sec_cpl.pldlen = htonl(param->bfr_len + param->sg_len);
324429d7 1547
358961d1 1548 chcr_req->sec_cpl.aadstart_cipherstop_hi =
324429d7 1549 FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, 0, 0);
358961d1 1550 chcr_req->sec_cpl.cipherstop_lo_authinsert =
324429d7 1551 FILL_SEC_CPL_AUTHINSERT(0, 1, 0, 0);
358961d1 1552 chcr_req->sec_cpl.seqno_numivs =
324429d7 1553 FILL_SEC_CPL_SCMD0_SEQNO(0, 0, 0, param->alg_prm.auth_mode,
358961d1 1554 param->opad_needed, 0);
324429d7 1555
358961d1 1556 chcr_req->sec_cpl.ivgen_hdrlen =
324429d7
HS		 1557 FILL_SEC_CPL_IVGEN_HDRLEN(param->last, param->more, 0, 1, 0, 0);
1558
358961d1
HJ		 1559 memcpy(chcr_req->key_ctx.key, req_ctx->partial_hash,
1560 param->alg_prm.result_size);
324429d7
HS		 1561
1562 if (param->opad_needed)
358961d1
HJ		 1563 memcpy(chcr_req->key_ctx.key +
1564 ((param->alg_prm.result_size <= 32) ? 32 :
1565 CHCR_HASH_MAX_DIGEST_SIZE),
324429d7
HS		 1566 hmacctx->opad, param->alg_prm.result_size);
1567
358961d1 1568 chcr_req->key_ctx.ctx_hdr = FILL_KEY_CTX_HDR(CHCR_KEYCTX_NO_KEY,
324429d7
HS		 1569 param->alg_prm.mk_size, 0,
1570 param->opad_needed,
5110e655 1571 ((param->kctx_len +
358961d1
HJ		 1572 sizeof(chcr_req->key_ctx)) >> 4));
1573 chcr_req->sec_cpl.scmd1 = cpu_to_be64((u64)param->scmd1);
5110e655 1574 ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + param->kctx_len +
2f47d580
HJ		 1575 DUMMY_BYTES);
1576 if (param->bfr_len != 0) {
5110e655
HJ		 1577 req_ctx->hctx_wr.dma_addr =
1578 dma_map_single(&u_ctx->lldi.pdev->dev, req_ctx->reqbfr,
1579 param->bfr_len, DMA_TO_DEVICE);
2f47d580 1580 if (dma_mapping_error(&u_ctx->lldi.pdev->dev,
5110e655 1581 req_ctx->hctx_wr. dma_addr)) {
2f47d580
HJ		 1582 error = -ENOMEM;
1583 goto err;
1584 }
5110e655 1585 req_ctx->hctx_wr.dma_len = param->bfr_len;
2f47d580 1586 } else {
5110e655 1587 req_ctx->hctx_wr.dma_addr = 0;
2f47d580
HJ		 1588 }
1589 chcr_add_hash_src_ent(req, ulptx, param);
1590 /* Request upto max wr size */
5110e655
HJ		 1591 temp = param->kctx_len + DUMMY_BYTES + (req_ctx->hctx_wr.imm ?
1592 (param->sg_len + param->bfr_len) : 0);
ee0863ba 1593 atomic_inc(&adap->chcr_stats.digest_rqst);
5110e655
HJ		 1594 create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->hctx_wr.imm,
1595 param->hash_size, transhdr_len,
2f47d580 1596 temp, 0);
5110e655 1597 req_ctx->hctx_wr.skb = skb;
324429d7 1598 return skb;
2f47d580
HJ		 1599err:
1600 kfree_skb(skb);
1601 return ERR_PTR(error);
324429d7
HS		 1602}
1603
1604static int chcr_ahash_update(struct ahash_request *req)
1605{
1606 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
1607 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
324429d7 1608 struct uld_ctx *u_ctx = NULL;
fef4912b 1609 struct chcr_dev *dev = h_ctx(rtfm)->dev;
324429d7
HS		 1610 struct sk_buff *skb;
1611 u8 remainder = 0, bs;
1612 unsigned int nbytes = req->nbytes;
1613 struct hash_wr_param params;
6faa0f57 1614 int error, isfull = 0;
324429d7
HS		 1615
1616 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
2f47d580 1617 u_ctx = ULD_CTX(h_ctx(rtfm));
324429d7 1618
44fce12a
HJ		 1619 if (nbytes + req_ctx->reqlen >= bs) {
1620 remainder = (nbytes + req_ctx->reqlen) % bs;
1621 nbytes = nbytes + req_ctx->reqlen - remainder;
324429d7 1622 } else {
44fce12a
HJ		 1623 sg_pcopy_to_buffer(req->src, sg_nents(req->src), req_ctx->reqbfr
1624 + req_ctx->reqlen, nbytes, 0);
1625 req_ctx->reqlen += nbytes;
324429d7
HS		 1626 return 0;
1627 }
fef4912b
HJ		 1628 error = chcr_inc_wrcount(dev);
1629 if (error)
1630 return -ENXIO;
1631 /* Detach state for CHCR means lldi or padap is freed. Increasing
1632 * inflight count for dev guarantees that lldi and padap is valid
1633 */
1634 if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
1635 h_ctx(rtfm)->tx_qidx))) {
1636 isfull = 1;
1637 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
1638 error = -ENOSPC;
1639 goto err;
1640 }
1641 }
1642
5110e655 1643 chcr_init_hctx_per_wr(req_ctx);
2f47d580 1644 error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1645 if (error) {
1646 error = -ENOMEM;
1647 goto err;
1648 }
5110e655
HJ		 1649 get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
1650 params.kctx_len = roundup(params.alg_prm.result_size, 16);
1651 params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
1652 HASH_SPACE_LEFT(params.kctx_len), 0);
1653 if (params.sg_len > req->nbytes)
1654 params.sg_len = req->nbytes;
1655 params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) -
1656 req_ctx->reqlen;
324429d7
HS		 1657 params.opad_needed = 0;
1658 params.more = 1;
1659 params.last = 0;
44fce12a 1660 params.bfr_len = req_ctx->reqlen;
324429d7 1661 params.scmd1 = 0;
5110e655
HJ		 1662 req_ctx->hctx_wr.srcsg = req->src;
1663
1664 params.hash_size = params.alg_prm.result_size;
324429d7 1665 req_ctx->data_len += params.sg_len + params.bfr_len;
358961d1 1666 skb = create_hash_wr(req, &params);
2f47d580
HJ		 1667 if (IS_ERR(skb)) {
1668 error = PTR_ERR(skb);
1669 goto unmap;
1670 }
324429d7 1671
5110e655 1672 req_ctx->hctx_wr.processed += params.sg_len;
44fce12a 1673 if (remainder) {
44fce12a 1674 /* Swap buffers */
abfa2b37 1675 swap(req_ctx->reqbfr, req_ctx->skbfr);
324429d7 1676 sg_pcopy_to_buffer(req->src, sg_nents(req->src),
44fce12a 1677 req_ctx->reqbfr, remainder, req->nbytes -
324429d7 1678 remainder);
44fce12a
HJ		 1679 }
1680 req_ctx->reqlen = remainder;
324429d7 1681 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1682 set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
324429d7
HS		 1683 chcr_send_wr(skb);
1684
6faa0f57 1685 return isfull ? -EBUSY : -EINPROGRESS;
2f47d580
HJ		 1686unmap:
1687 chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1688err:
1689 chcr_dec_wrcount(dev);
2f47d580 1690 return error;
324429d7
HS		 1691}
1692
1693static void create_last_hash_block(char *bfr_ptr, unsigned int bs, u64 scmd1)
1694{
1695 memset(bfr_ptr, 0, bs);
1696 *bfr_ptr = 0x80;
1697 if (bs == 64)
1698 *(__be64 *)(bfr_ptr + 56) = cpu_to_be64(scmd1 << 3);
1699 else
1700 *(__be64 *)(bfr_ptr + 120) = cpu_to_be64(scmd1 << 3);
1701}
1702
1703static int chcr_ahash_final(struct ahash_request *req)
1704{
1705 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
1706 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
fef4912b 1707 struct chcr_dev *dev = h_ctx(rtfm)->dev;
324429d7
HS		 1708 struct hash_wr_param params;
1709 struct sk_buff *skb;
1710 struct uld_ctx *u_ctx = NULL;
1711 u8 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
fef4912b
HJ		 1712 int error = -EINVAL;
1713
1714 error = chcr_inc_wrcount(dev);
1715 if (error)
1716 return -ENXIO;
324429d7 1717
5110e655 1718 chcr_init_hctx_per_wr(req_ctx);
2f47d580 1719 u_ctx = ULD_CTX(h_ctx(rtfm));
324429d7
HS		 1720 if (is_hmac(crypto_ahash_tfm(rtfm)))
1721 params.opad_needed = 1;
1722 else
1723 params.opad_needed = 0;
1724 params.sg_len = 0;
5110e655 1725 req_ctx->hctx_wr.isfinal = 1;
324429d7 1726 get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
5110e655
HJ		 1727 params.kctx_len = roundup(params.alg_prm.result_size, 16);
1728 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1729 params.opad_needed = 1;
1730 params.kctx_len *= 2;
1731 } else {
1732 params.opad_needed = 0;
1733 }
1734
1735 req_ctx->hctx_wr.result = 1;
44fce12a 1736 params.bfr_len = req_ctx->reqlen;
324429d7 1737 req_ctx->data_len += params.bfr_len + params.sg_len;
5110e655 1738 req_ctx->hctx_wr.srcsg = req->src;
44fce12a
HJ		 1739 if (req_ctx->reqlen == 0) {
1740 create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len);
324429d7
HS		 1741 params.last = 0;
1742 params.more = 1;
1743 params.scmd1 = 0;
1744 params.bfr_len = bs;
1745
1746 } else {
1747 params.scmd1 = req_ctx->data_len;
1748 params.last = 1;
1749 params.more = 0;
1750 }
5110e655 1751 params.hash_size = crypto_ahash_digestsize(rtfm);
358961d1 1752 skb = create_hash_wr(req, &params);
fef4912b
HJ		 1753 if (IS_ERR(skb)) {
1754 error = PTR_ERR(skb);
1755 goto err;
1756 }
5110e655 1757 req_ctx->reqlen = 0;
324429d7 1758 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1759 set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
324429d7
HS		 1760 chcr_send_wr(skb);
1761 return -EINPROGRESS;
fef4912b
HJ		 1762err:
1763 chcr_dec_wrcount(dev);
1764 return error;
324429d7
HS		 1765}
1766
1767static int chcr_ahash_finup(struct ahash_request *req)
1768{
1769 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
1770 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
fef4912b 1771 struct chcr_dev *dev = h_ctx(rtfm)->dev;
324429d7
HS		 1772 struct uld_ctx *u_ctx = NULL;
1773 struct sk_buff *skb;
1774 struct hash_wr_param params;
1775 u8 bs;
6faa0f57 1776 int error, isfull = 0;
324429d7
HS		 1777
1778 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
2f47d580 1779 u_ctx = ULD_CTX(h_ctx(rtfm));
fef4912b
HJ		 1780 error = chcr_inc_wrcount(dev);
1781 if (error)
1782 return -ENXIO;
324429d7
HS		 1783
1784 if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
2f47d580 1785 h_ctx(rtfm)->tx_qidx))) {
6faa0f57 1786 isfull = 1;
fef4912b
HJ		 1787 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
1788 error = -ENOSPC;
1789 goto err;
1790 }
324429d7 1791 }
5110e655
HJ		 1792 chcr_init_hctx_per_wr(req_ctx);
1793 error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1794 if (error) {
1795 error = -ENOMEM;
1796 goto err;
1797 }
324429d7 1798
5110e655
HJ		 1799 get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
1800 params.kctx_len = roundup(params.alg_prm.result_size, 16);
1801 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1802 params.kctx_len *= 2;
324429d7 1803 params.opad_needed = 1;
5110e655 1804 } else {
324429d7 1805 params.opad_needed = 0;
5110e655 1806 }
324429d7 1807
5110e655
HJ		 1808 params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
1809 HASH_SPACE_LEFT(params.kctx_len), 0);
1810 if (params.sg_len < req->nbytes) {
1811 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1812 params.kctx_len /= 2;
1813 params.opad_needed = 0;
1814 }
1815 params.last = 0;
1816 params.more = 1;
1817 params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs)
1818 - req_ctx->reqlen;
1819 params.hash_size = params.alg_prm.result_size;
1820 params.scmd1 = 0;
1821 } else {
1822 params.last = 1;
1823 params.more = 0;
1824 params.sg_len = req->nbytes;
1825 params.hash_size = crypto_ahash_digestsize(rtfm);
1826 params.scmd1 = req_ctx->data_len + req_ctx->reqlen +
1827 params.sg_len;
1828 }
44fce12a 1829 params.bfr_len = req_ctx->reqlen;
324429d7 1830 req_ctx->data_len += params.bfr_len + params.sg_len;
5110e655
HJ		 1831 req_ctx->hctx_wr.result = 1;
1832 req_ctx->hctx_wr.srcsg = req->src;
44fce12a
HJ		 1833 if ((req_ctx->reqlen + req->nbytes) == 0) {
1834 create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len);
324429d7
HS		 1835 params.last = 0;
1836 params.more = 1;
1837 params.scmd1 = 0;
1838 params.bfr_len = bs;
324429d7 1839 }
358961d1 1840 skb = create_hash_wr(req, &params);
2f47d580
HJ		 1841 if (IS_ERR(skb)) {
1842 error = PTR_ERR(skb);
1843 goto unmap;
1844 }
5110e655
HJ		 1845 req_ctx->reqlen = 0;
1846 req_ctx->hctx_wr.processed += params.sg_len;
324429d7 1847 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1848 set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
324429d7
HS		 1849 chcr_send_wr(skb);
1850
6faa0f57 1851 return isfull ? -EBUSY : -EINPROGRESS;
2f47d580
HJ		 1852unmap:
1853 chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1854err:
1855 chcr_dec_wrcount(dev);
2f47d580 1856 return error;
324429d7
HS		 1857}
1858
1859static int chcr_ahash_digest(struct ahash_request *req)
1860{
1861 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
1862 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
fef4912b 1863 struct chcr_dev *dev = h_ctx(rtfm)->dev;
324429d7
HS		 1864 struct uld_ctx *u_ctx = NULL;
1865 struct sk_buff *skb;
1866 struct hash_wr_param params;
1867 u8 bs;
6faa0f57 1868 int error, isfull = 0;
324429d7
HS		 1869
1870 rtfm->init(req);
1871 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
fef4912b
HJ		 1872 error = chcr_inc_wrcount(dev);
1873 if (error)
1874 return -ENXIO;
324429d7 1875
2f47d580 1876 u_ctx = ULD_CTX(h_ctx(rtfm));
324429d7 1877 if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
2f47d580 1878 h_ctx(rtfm)->tx_qidx))) {
6faa0f57 1879 isfull = 1;
fef4912b
HJ		 1880 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
1881 error = -ENOSPC;
1882 goto err;
1883 }
324429d7
HS		 1884 }
1885
5110e655 1886 chcr_init_hctx_per_wr(req_ctx);
2f47d580 1887 error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1888 if (error) {
1889 error = -ENOMEM;
1890 goto err;
1891 }
324429d7 1892
324429d7 1893 get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
5110e655
HJ		 1894 params.kctx_len = roundup(params.alg_prm.result_size, 16);
1895 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1896 params.kctx_len *= 2;
1897 params.opad_needed = 1;
1898 } else {
1899 params.opad_needed = 0;
1900 }
1901 params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
1902 HASH_SPACE_LEFT(params.kctx_len), 0);
1903 if (params.sg_len < req->nbytes) {
1904 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1905 params.kctx_len /= 2;
1906 params.opad_needed = 0;
1907 }
1908 params.last = 0;
1909 params.more = 1;
1910 params.scmd1 = 0;
1911 params.sg_len = rounddown(params.sg_len, bs);
1912 params.hash_size = params.alg_prm.result_size;
1913 } else {
1914 params.sg_len = req->nbytes;
1915 params.hash_size = crypto_ahash_digestsize(rtfm);
1916 params.last = 1;
1917 params.more = 0;
1918 params.scmd1 = req->nbytes + req_ctx->data_len;
1919
1920 }
1921 params.bfr_len = 0;
1922 req_ctx->hctx_wr.result = 1;
1923 req_ctx->hctx_wr.srcsg = req->src;
324429d7
HS		 1924 req_ctx->data_len += params.bfr_len + params.sg_len;
1925
44fce12a
HJ		 1926 if (req->nbytes == 0) {
1927 create_last_hash_block(req_ctx->reqbfr, bs, 0);
324429d7
HS		 1928 params.more = 1;
1929 params.bfr_len = bs;
1930 }
1931
358961d1 1932 skb = create_hash_wr(req, &params);
2f47d580
HJ		 1933 if (IS_ERR(skb)) {
1934 error = PTR_ERR(skb);
1935 goto unmap;
1936 }
5110e655 1937 req_ctx->hctx_wr.processed += params.sg_len;
324429d7 1938 skb->dev = u_ctx->lldi.ports[0];
2f47d580 1939 set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
324429d7 1940 chcr_send_wr(skb);
6faa0f57 1941 return isfull ? -EBUSY : -EINPROGRESS;
2f47d580
HJ		 1942unmap:
1943 chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
fef4912b
HJ		 1944err:
1945 chcr_dec_wrcount(dev);
2f47d580 1946 return error;
324429d7
HS		 1947}
1948
6f76672b
HJ		 1949static int chcr_ahash_continue(struct ahash_request *req)
1950{
1951 struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
1952 struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr;
1953 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
1954 struct uld_ctx *u_ctx = NULL;
1955 struct sk_buff *skb;
1956 struct hash_wr_param params;
1957 u8 bs;
1958 int error;
1959
1960 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
1961 u_ctx = ULD_CTX(h_ctx(rtfm));
6f76672b
HJ		 1962 get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
1963 params.kctx_len = roundup(params.alg_prm.result_size, 16);
1964 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1965 params.kctx_len *= 2;
1966 params.opad_needed = 1;
1967 } else {
1968 params.opad_needed = 0;
1969 }
1970 params.sg_len = chcr_hash_ent_in_wr(hctx_wr->srcsg, 0,
1971 HASH_SPACE_LEFT(params.kctx_len),
1972 hctx_wr->src_ofst);
1973 if ((params.sg_len + hctx_wr->processed) > req->nbytes)
1974 params.sg_len = req->nbytes - hctx_wr->processed;
1975 if (!hctx_wr->result ||
1976 ((params.sg_len + hctx_wr->processed) < req->nbytes)) {
1977 if (is_hmac(crypto_ahash_tfm(rtfm))) {
1978 params.kctx_len /= 2;
1979 params.opad_needed = 0;
1980 }
1981 params.last = 0;
1982 params.more = 1;
1983 params.sg_len = rounddown(params.sg_len, bs);
1984 params.hash_size = params.alg_prm.result_size;
1985 params.scmd1 = 0;
1986 } else {
1987 params.last = 1;
1988 params.more = 0;
1989 params.hash_size = crypto_ahash_digestsize(rtfm);
1990 params.scmd1 = reqctx->data_len + params.sg_len;
1991 }
1992 params.bfr_len = 0;
1993 reqctx->data_len += params.sg_len;
1994 skb = create_hash_wr(req, &params);
1995 if (IS_ERR(skb)) {
1996 error = PTR_ERR(skb);
1997 goto err;
1998 }
1999 hctx_wr->processed += params.sg_len;
2000 skb->dev = u_ctx->lldi.ports[0];
2001 set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
2002 chcr_send_wr(skb);
2003 return 0;
2004err:
2005 return error;
2006}
2007
2008static inline void chcr_handle_ahash_resp(struct ahash_request *req,
2009 unsigned char *input,
2010 int err)
2011{
2012 struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
2013 struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr;
2014 int digestsize, updated_digestsize;
2015 struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
2016 struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm));
fef4912b 2017 struct chcr_dev *dev = h_ctx(tfm)->dev;
6f76672b
HJ		 2018
2019 if (input == NULL)
2020 goto out;
2021 digestsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
2022 updated_digestsize = digestsize;
2023 if (digestsize == SHA224_DIGEST_SIZE)
2024 updated_digestsize = SHA256_DIGEST_SIZE;
2025 else if (digestsize == SHA384_DIGEST_SIZE)
2026 updated_digestsize = SHA512_DIGEST_SIZE;
2027
2028 if (hctx_wr->dma_addr) {
2029 dma_unmap_single(&u_ctx->lldi.pdev->dev, hctx_wr->dma_addr,
2030 hctx_wr->dma_len, DMA_TO_DEVICE);
2031 hctx_wr->dma_addr = 0;
2032 }
2033 if (hctx_wr->isfinal || ((hctx_wr->processed + reqctx->reqlen) ==
2034 req->nbytes)) {
2035 if (hctx_wr->result == 1) {
2036 hctx_wr->result = 0;
2037 memcpy(req->result, input + sizeof(struct cpl_fw6_pld),
2038 digestsize);
2039 } else {
2040 memcpy(reqctx->partial_hash,
2041 input + sizeof(struct cpl_fw6_pld),
2042 updated_digestsize);
2043
2044 }
2045 goto unmap;
2046 }
2047 memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld),
2048 updated_digestsize);
2049
2050 err = chcr_ahash_continue(req);
2051 if (err)
2052 goto unmap;
2053 return;
2054unmap:
2055 if (hctx_wr->is_sg_map)
2056 chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
2057
2058
2059out:
fef4912b 2060 chcr_dec_wrcount(dev);
6f76672b
HJ		 2061 req->base.complete(&req->base, err);
2062}
2063
2064/*
2065 * chcr_handle_resp - Unmap the DMA buffers associated with the request
2066 * @req: crypto request
2067 */
2068int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
2069 int err)
2070{
2071 struct crypto_tfm *tfm = req->tfm;
2072 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
2073 struct adapter *adap = padap(ctx->dev);
2074
2075 switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
2076 case CRYPTO_ALG_TYPE_AEAD:
f31ba0f9 2077 err = chcr_handle_aead_resp(aead_request_cast(req), input, err);
6f76672b
HJ		 2078 break;
2079
2080 case CRYPTO_ALG_TYPE_ABLKCIPHER:
f31ba0f9 2081 chcr_handle_cipher_resp(ablkcipher_request_cast(req),
6f76672b
HJ		 2082 input, err);
2083 break;
6f76672b
HJ		 2084 case CRYPTO_ALG_TYPE_AHASH:
2085 chcr_handle_ahash_resp(ahash_request_cast(req), input, err);
2086 }
2087 atomic_inc(&adap->chcr_stats.complete);
2088 return err;
2089}
324429d7
HS		 2090static int chcr_ahash_export(struct ahash_request *areq, void *out)
2091{
2092 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2093 struct chcr_ahash_req_ctx *state = out;
2094
44fce12a 2095 state->reqlen = req_ctx->reqlen;
324429d7 2096 state->data_len = req_ctx->data_len;
44fce12a 2097 memcpy(state->bfr1, req_ctx->reqbfr, req_ctx->reqlen);
324429d7
HS		 2098 memcpy(state->partial_hash, req_ctx->partial_hash,
2099 CHCR_HASH_MAX_DIGEST_SIZE);
5110e655 2100 chcr_init_hctx_per_wr(state);
fc6176a2 2101 return 0;
324429d7
HS		 2102}
2103
2104static int chcr_ahash_import(struct ahash_request *areq, const void *in)
2105{
2106 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2107 struct chcr_ahash_req_ctx *state = (struct chcr_ahash_req_ctx *)in;
2108
44fce12a 2109 req_ctx->reqlen = state->reqlen;
324429d7 2110 req_ctx->data_len = state->data_len;
44fce12a
HJ		 2111 req_ctx->reqbfr = req_ctx->bfr1;
2112 req_ctx->skbfr = req_ctx->bfr2;
2113 memcpy(req_ctx->bfr1, state->bfr1, CHCR_HASH_MAX_BLOCK_SIZE_128);
324429d7
HS		 2114 memcpy(req_ctx->partial_hash, state->partial_hash,
2115 CHCR_HASH_MAX_DIGEST_SIZE);
5110e655 2116 chcr_init_hctx_per_wr(req_ctx);
324429d7
HS		 2117 return 0;
2118}
2119
2120static int chcr_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
2121 unsigned int keylen)
2122{
2f47d580 2123 struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm));
324429d7
HS		 2124 unsigned int digestsize = crypto_ahash_digestsize(tfm);
2125 unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
2126 unsigned int i, err = 0, updated_digestsize;
2127
e7922729
HJ		 2128 SHASH_DESC_ON_STACK(shash, hmacctx->base_hash);
2129
2130 /* use the key to calculate the ipad and opad. ipad will sent with the
324429d7
HS		 2131 * first request's data. opad will be sent with the final hash result
2132 * ipad in hmacctx->ipad and opad in hmacctx->opad location
2133 */
e7922729
HJ		 2134 shash->tfm = hmacctx->base_hash;
2135 shash->flags = crypto_shash_get_flags(hmacctx->base_hash);
324429d7 2136 if (keylen > bs) {
e7922729 2137 err = crypto_shash_digest(shash, key, keylen,
324429d7
HS		 2138 hmacctx->ipad);
2139 if (err)
2140 goto out;
2141 keylen = digestsize;
2142 } else {
2143 memcpy(hmacctx->ipad, key, keylen);
2144 }
2145 memset(hmacctx->ipad + keylen, 0, bs - keylen);
2146 memcpy(hmacctx->opad, hmacctx->ipad, bs);
2147
2148 for (i = 0; i < bs / sizeof(int); i++) {
2149 *((unsigned int *)(&hmacctx->ipad) + i) ^= IPAD_DATA;
2150 *((unsigned int *)(&hmacctx->opad) + i) ^= OPAD_DATA;
2151 }
2152
2153 updated_digestsize = digestsize;
2154 if (digestsize == SHA224_DIGEST_SIZE)
2155 updated_digestsize = SHA256_DIGEST_SIZE;
2156 else if (digestsize == SHA384_DIGEST_SIZE)
2157 updated_digestsize = SHA512_DIGEST_SIZE;
e7922729 2158 err = chcr_compute_partial_hash(shash, hmacctx->ipad,
324429d7
HS		 2159 hmacctx->ipad, digestsize);
2160 if (err)
2161 goto out;
2162 chcr_change_order(hmacctx->ipad, updated_digestsize);
2163
e7922729 2164 err = chcr_compute_partial_hash(shash, hmacctx->opad,
324429d7
HS		 2165 hmacctx->opad, digestsize);
2166 if (err)
2167 goto out;
2168 chcr_change_order(hmacctx->opad, updated_digestsize);
2169out:
2170 return err;
2171}
2172
b8fd1f41 2173static int chcr_aes_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
324429d7
HS		 2174 unsigned int key_len)
2175{
2f47d580 2176 struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
324429d7 2177 unsigned short context_size = 0;
b8fd1f41 2178 int err;
324429d7 2179
b8fd1f41
HJ		 2180 err = chcr_cipher_fallback_setkey(cipher, key, key_len);
2181 if (err)
2182 goto badkey_err;
cc1b156d
HJ		 2183
2184 memcpy(ablkctx->key, key, key_len);
2185 ablkctx->enckey_len = key_len;
2186 get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, key_len << 2);
2187 context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + key_len) >> 4;
2188 ablkctx->key_ctx_hdr =
2189 FILL_KEY_CTX_HDR((key_len == AES_KEYSIZE_256) ?
2190 CHCR_KEYCTX_CIPHER_KEY_SIZE_128 :
2191 CHCR_KEYCTX_CIPHER_KEY_SIZE_256,
2192 CHCR_KEYCTX_NO_KEY, 1,
2193 0, context_size);
2194 ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_XTS;
2195 return 0;
b8fd1f41
HJ		 2196badkey_err:
2197 crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
2198 ablkctx->enckey_len = 0;
2199
2200 return err;
324429d7
HS		 2201}
2202
2203static int chcr_sha_init(struct ahash_request *areq)
2204{
2205 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2206 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
2207 int digestsize = crypto_ahash_digestsize(tfm);
2208
2209 req_ctx->data_len = 0;
44fce12a
HJ		 2210 req_ctx->reqlen = 0;
2211 req_ctx->reqbfr = req_ctx->bfr1;
2212 req_ctx->skbfr = req_ctx->bfr2;
324429d7 2213 copy_hash_init_values(req_ctx->partial_hash, digestsize);
5110e655 2214
324429d7
HS		 2215 return 0;
2216}
2217
2218static int chcr_sha_cra_init(struct crypto_tfm *tfm)
2219{
2220 crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
2221 sizeof(struct chcr_ahash_req_ctx));
2222 return chcr_device_init(crypto_tfm_ctx(tfm));
2223}
2224
2225static int chcr_hmac_init(struct ahash_request *areq)
2226{
2227 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2228 struct crypto_ahash *rtfm = crypto_ahash_reqtfm(areq);
2f47d580 2229 struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(rtfm));
324429d7
HS		 2230 unsigned int digestsize = crypto_ahash_digestsize(rtfm);
2231 unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
2232
2233 chcr_sha_init(areq);
2234 req_ctx->data_len = bs;
2235 if (is_hmac(crypto_ahash_tfm(rtfm))) {
2236 if (digestsize == SHA224_DIGEST_SIZE)
2237 memcpy(req_ctx->partial_hash, hmacctx->ipad,
2238 SHA256_DIGEST_SIZE);
2239 else if (digestsize == SHA384_DIGEST_SIZE)
2240 memcpy(req_ctx->partial_hash, hmacctx->ipad,
2241 SHA512_DIGEST_SIZE);
2242 else
2243 memcpy(req_ctx->partial_hash, hmacctx->ipad,
2244 digestsize);
2245 }
2246 return 0;
2247}
2248
2249static int chcr_hmac_cra_init(struct crypto_tfm *tfm)
2250{
2251 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
2252 struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
2253 unsigned int digestsize =
2254 crypto_ahash_digestsize(__crypto_ahash_cast(tfm));
2255
2256 crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
2257 sizeof(struct chcr_ahash_req_ctx));
e7922729
HJ		 2258 hmacctx->base_hash = chcr_alloc_shash(digestsize);
2259 if (IS_ERR(hmacctx->base_hash))
2260 return PTR_ERR(hmacctx->base_hash);
324429d7
HS		 2261 return chcr_device_init(crypto_tfm_ctx(tfm));
2262}
2263
324429d7
HS		 2264static void chcr_hmac_cra_exit(struct crypto_tfm *tfm)
2265{
2266 struct chcr_context *ctx = crypto_tfm_ctx(tfm);
2267 struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
2268
e7922729
HJ		 2269 if (hmacctx->base_hash) {
2270 chcr_free_shash(hmacctx->base_hash);
2271 hmacctx->base_hash = NULL;
324429d7
HS		 2272 }
2273}
2274
4262c98a
HJ		 2275inline void chcr_aead_common_exit(struct aead_request *req)
2276{
2277 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2278 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2279 struct uld_ctx *u_ctx = ULD_CTX(a_ctx(tfm));
2280
2281 chcr_aead_dma_unmap(&u_ctx->lldi.pdev->dev, req, reqctx->op);
2282}
2283
2284static int chcr_aead_common_init(struct aead_request *req)
2debd332 2285{
2f47d580
HJ		 2286 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2287 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2288 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2f47d580 2289 unsigned int authsize = crypto_aead_authsize(tfm);
4262c98a 2290 int error = -EINVAL;
2debd332 2291
2f47d580
HJ		 2292 /* validate key size */
2293 if (aeadctx->enckey_len == 0)
2294 goto err;
4262c98a 2295 if (reqctx->op && req->cryptlen < authsize)
2f47d580 2296 goto err;
4262c98a
HJ		 2297 if (reqctx->b0_len)
2298 reqctx->scratch_pad = reqctx->iv + IV;
2299 else
2300 reqctx->scratch_pad = NULL;
2301
2f47d580 2302 error = chcr_aead_dma_map(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
4262c98a 2303 reqctx->op);
2f47d580
HJ		 2304 if (error) {
2305 error = -ENOMEM;
2306 goto err;
2307 }
1f479e4c 2308
2f47d580
HJ		 2309 return 0;
2310err:
2311 return error;
2debd332 2312}
2f47d580
HJ		 2313
2314static int chcr_aead_need_fallback(struct aead_request *req, int dst_nents,
0e93708d
HJ		 2315 int aadmax, int wrlen,
2316 unsigned short op_type)
2317{
2318 unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
2319
2320 if (((req->cryptlen - (op_type ? authsize : 0)) == 0) ||
2f47d580 2321 dst_nents > MAX_DSGL_ENT ||
0e93708d 2322 (req->assoclen > aadmax) ||
2f47d580 2323 (wrlen > SGE_MAX_WR_LEN))
0e93708d
HJ		 2324 return 1;
2325 return 0;
2326}
2debd332 2327
0e93708d
HJ		 2328static int chcr_aead_fallback(struct aead_request *req, unsigned short op_type)
2329{
2330 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 2331 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
0e93708d
HJ		 2332 struct aead_request *subreq = aead_request_ctx(req);
2333
2334 aead_request_set_tfm(subreq, aeadctx->sw_cipher);
2335 aead_request_set_callback(subreq, req->base.flags,
2336 req->base.complete, req->base.data);
4262c98a 2337 aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
0e93708d 2338 req->iv);
fc6176a2 2339 aead_request_set_ad(subreq, req->assoclen);
0e93708d
HJ		 2340 return op_type ? crypto_aead_decrypt(subreq) :
2341 crypto_aead_encrypt(subreq);
2342}
2debd332
HJ		 2343
2344static struct sk_buff *create_authenc_wr(struct aead_request *req,
2345 unsigned short qid,
4262c98a 2346 int size)
2debd332
HJ		 2347{
2348 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 2349 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 2350 struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
2351 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2352 struct sk_buff *skb = NULL;
2353 struct chcr_wr *chcr_req;
2354 struct cpl_rx_phys_dsgl *phys_cpl;
2f47d580
HJ		 2355 struct ulptx_sgl *ulptx;
2356 unsigned int transhdr_len;
3d64bd67 2357 unsigned int dst_size = 0, temp, subtype = get_aead_subtype(tfm);
1f479e4c 2358 unsigned int kctx_len = 0, dnents, snents;
2debd332 2359 unsigned int authsize = crypto_aead_authsize(tfm);
2f47d580 2360 int error = -EINVAL;
1f479e4c 2361 u8 *ivptr;
2debd332
HJ		 2362 int null = 0;
2363 gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
2364 GFP_ATOMIC;
2f47d580 2365 struct adapter *adap = padap(a_ctx(tfm)->dev);
2debd332 2366
2f47d580
HJ		 2367 if (req->cryptlen == 0)
2368 return NULL;
2debd332 2369
4262c98a
HJ		 2370 reqctx->b0_len = 0;
2371 error = chcr_aead_common_init(req);
2372 if (error)
2373 return ERR_PTR(error);
2374
3d64bd67 2375 if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL ||
4262c98a 2376 subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
2debd332 2377 null = 1;
2debd332 2378 }
1f479e4c
HJ		 2379 dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen +
2380 (reqctx->op ? -authsize : authsize), CHCR_DST_SG_SIZE, 0);
5abc8db0 2381 dnents += MIN_AUTH_SG; // For IV
1f479e4c
HJ		 2382 snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
2383 CHCR_SRC_SG_SIZE, 0);
2f47d580 2384 dst_size = get_space_for_phys_dsgl(dnents);
2debd332
HJ		 2385 kctx_len = (ntohl(KEY_CONTEXT_CTX_LEN_V(aeadctx->key_ctx_hdr)) << 4)
2386 - sizeof(chcr_req->key_ctx);
2387 transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
1f479e4c 2388 reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) <
2f47d580 2389 SGE_MAX_WR_LEN;
1f479e4c
HJ		 2390 temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16)
2391 : (sgl_len(snents) * 8);
2f47d580 2392 transhdr_len += temp;
125d01ca 2393 transhdr_len = roundup(transhdr_len, 16);
2f47d580
HJ		 2394
2395 if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
4262c98a 2396 transhdr_len, reqctx->op)) {
ee0863ba 2397 atomic_inc(&adap->chcr_stats.fallback);
4262c98a
HJ		 2398 chcr_aead_common_exit(req);
2399 return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
0e93708d 2400 }
1f479e4c 2401 skb = alloc_skb(transhdr_len, flags);
5fe8c711
HJ		 2402 if (!skb) {
2403 error = -ENOMEM;
2debd332 2404 goto err;
5fe8c711 2405 }
2debd332 2406
de77b966 2407 chcr_req = __skb_put_zero(skb, transhdr_len);
2debd332 2408
4262c98a 2409 temp = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize;
2debd332
HJ		 2410
2411 /*
2412 * Input order is AAD,IV and Payload. where IV should be included as
2413 * the part of authdata. All other fields should be filled according
2414 * to the hardware spec
2415 */
2416 chcr_req->sec_cpl.op_ivinsrtofst =
d5a4dfbd 2417 FILL_SEC_CPL_OP_IVINSR(a_ctx(tfm)->tx_chan_id, 2, 1);
1f479e4c 2418 chcr_req->sec_cpl.pldlen = htonl(req->assoclen + IV + req->cryptlen);
2debd332 2419 chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
1f479e4c
HJ		 2420 null ? 0 : 1 + IV,
2421 null ? 0 : IV + req->assoclen,
2422 req->assoclen + IV + 1,
2f47d580 2423 (temp & 0x1F0) >> 4);
2debd332 2424 chcr_req->sec_cpl.cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(
2f47d580 2425 temp & 0xF,
1f479e4c 2426 null ? 0 : req->assoclen + IV + 1,
2f47d580 2427 temp, temp);
3d64bd67
HJ		 2428 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL ||
2429 subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA)
2430 temp = CHCR_SCMD_CIPHER_MODE_AES_CTR;
2431 else
2432 temp = CHCR_SCMD_CIPHER_MODE_AES_CBC;
4262c98a
HJ		 2433 chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op,
2434 (reqctx->op == CHCR_ENCRYPT_OP) ? 1 : 0,
3d64bd67 2435 temp,
2debd332 2436 actx->auth_mode, aeadctx->hmac_ctrl,
2f47d580 2437 IV >> 1);
2debd332 2438 chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
2f47d580 2439 0, 0, dst_size);
2debd332
HJ		 2440
2441 chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
4262c98a 2442 if (reqctx->op == CHCR_ENCRYPT_OP ||
3d64bd67
HJ		 2443 subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
2444 subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL)
2debd332
HJ		 2445 memcpy(chcr_req->key_ctx.key, aeadctx->key,
2446 aeadctx->enckey_len);
2447 else
2448 memcpy(chcr_req->key_ctx.key, actx->dec_rrkey,
2449 aeadctx->enckey_len);
2450
125d01ca
HJ		 2451 memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
2452 actx->h_iopad, kctx_len - roundup(aeadctx->enckey_len, 16));
1f479e4c
HJ		 2453 phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
2454 ivptr = (u8 *)(phys_cpl + 1) + dst_size;
2455 ulptx = (struct ulptx_sgl *)(ivptr + IV);
3d64bd67
HJ		 2456 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
2457 subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
1f479e4c
HJ		 2458 memcpy(ivptr, aeadctx->nonce, CTR_RFC3686_NONCE_SIZE);
2459 memcpy(ivptr + CTR_RFC3686_NONCE_SIZE, req->iv,
3d64bd67 2460 CTR_RFC3686_IV_SIZE);
1f479e4c 2461 *(__be32 *)(ivptr + CTR_RFC3686_NONCE_SIZE +
3d64bd67
HJ		 2462 CTR_RFC3686_IV_SIZE) = cpu_to_be32(1);
2463 } else {
1f479e4c 2464 memcpy(ivptr, req->iv, IV);
3d64bd67 2465 }
1f479e4c
HJ		 2466 chcr_add_aead_dst_ent(req, phys_cpl, qid);
2467 chcr_add_aead_src_ent(req, ulptx);
ee0863ba 2468 atomic_inc(&adap->chcr_stats.cipher_rqst);
1f479e4c
HJ		 2469 temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
2470 kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0);
2f47d580
HJ		 2471 create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
2472 transhdr_len, temp, 0);
2debd332 2473 reqctx->skb = skb;
2debd332
HJ		 2474
2475 return skb;
2debd332 2476err:
4262c98a 2477 chcr_aead_common_exit(req);
2f47d580 2478
5fe8c711 2479 return ERR_PTR(error);
2debd332
HJ		 2480}
2481
6dad4e8a
AG		 2482int chcr_aead_dma_map(struct device *dev,
2483 struct aead_request *req,
2484 unsigned short op_type)
2f47d580
HJ		 2485{
2486 int error;
2487 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2488 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2489 unsigned int authsize = crypto_aead_authsize(tfm);
2490 int dst_size;
2491
2492 dst_size = req->assoclen + req->cryptlen + (op_type ?
2493 -authsize : authsize);
2494 if (!req->cryptlen || !dst_size)
2495 return 0;
4262c98a 2496 reqctx->iv_dma = dma_map_single(dev, reqctx->iv, (IV + reqctx->b0_len),
2f47d580
HJ		 2497 DMA_BIDIRECTIONAL);
2498 if (dma_mapping_error(dev, reqctx->iv_dma))
2499 return -ENOMEM;
4262c98a
HJ		 2500 if (reqctx->b0_len)
2501 reqctx->b0_dma = reqctx->iv_dma + IV;
2502 else
2503 reqctx->b0_dma = 0;
2f47d580
HJ		 2504 if (req->src == req->dst) {
2505 error = dma_map_sg(dev, req->src, sg_nents(req->src),
2506 DMA_BIDIRECTIONAL);
2507 if (!error)
2508 goto err;
2509 } else {
2510 error = dma_map_sg(dev, req->src, sg_nents(req->src),
2511 DMA_TO_DEVICE);
2512 if (!error)
2513 goto err;
2514 error = dma_map_sg(dev, req->dst, sg_nents(req->dst),
2515 DMA_FROM_DEVICE);
2516 if (!error) {
2517 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2518 DMA_TO_DEVICE);
2519 goto err;
2520 }
2521 }
2522
2523 return 0;
2524err:
2525 dma_unmap_single(dev, reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
2526 return -ENOMEM;
2527}
2528
6dad4e8a
AG		 2529void chcr_aead_dma_unmap(struct device *dev,
2530 struct aead_request *req,
2531 unsigned short op_type)
2f47d580
HJ		 2532{
2533 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2534 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2535 unsigned int authsize = crypto_aead_authsize(tfm);
2536 int dst_size;
2537
2538 dst_size = req->assoclen + req->cryptlen + (op_type ?
2539 -authsize : authsize);
2540 if (!req->cryptlen || !dst_size)
2541 return;
2542
4262c98a 2543 dma_unmap_single(dev, reqctx->iv_dma, (IV + reqctx->b0_len),
2f47d580
HJ		 2544 DMA_BIDIRECTIONAL);
2545 if (req->src == req->dst) {
2546 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2547 DMA_BIDIRECTIONAL);
2548 } else {
2549 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2550 DMA_TO_DEVICE);
2551 dma_unmap_sg(dev, req->dst, sg_nents(req->dst),
2552 DMA_FROM_DEVICE);
2553 }
2554}
2555
6dad4e8a 2556void chcr_add_aead_src_ent(struct aead_request *req,
1f479e4c 2557 struct ulptx_sgl *ulptx)
2f47d580
HJ		 2558{
2559 struct ulptx_walk ulp_walk;
2560 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2561
2562 if (reqctx->imm) {
2563 u8 *buf = (u8 *)ulptx;
2564
4262c98a 2565 if (reqctx->b0_len) {
2f47d580
HJ		 2566 memcpy(buf, reqctx->scratch_pad, reqctx->b0_len);
2567 buf += reqctx->b0_len;
2568 }
2569 sg_pcopy_to_buffer(req->src, sg_nents(req->src),
1f479e4c 2570 buf, req->cryptlen + req->assoclen, 0);
2f47d580
HJ		 2571 } else {
2572 ulptx_walk_init(&ulp_walk, ulptx);
4262c98a 2573 if (reqctx->b0_len)
2f47d580 2574 ulptx_walk_add_page(&ulp_walk, reqctx->b0_len,
c4f6d44d 2575 reqctx->b0_dma);
1f479e4c
HJ		 2576 ulptx_walk_add_sg(&ulp_walk, req->src, req->cryptlen +
2577 req->assoclen, 0);
2f47d580
HJ		 2578 ulptx_walk_end(&ulp_walk);
2579 }
2580}
2581
6dad4e8a
AG		 2582void chcr_add_aead_dst_ent(struct aead_request *req,
2583 struct cpl_rx_phys_dsgl *phys_cpl,
6dad4e8a 2584 unsigned short qid)
2f47d580
HJ		 2585{
2586 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2587 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2588 struct dsgl_walk dsgl_walk;
2589 unsigned int authsize = crypto_aead_authsize(tfm);
add92a81 2590 struct chcr_context *ctx = a_ctx(tfm);
2f47d580
HJ		 2591 u32 temp;
2592
2593 dsgl_walk_init(&dsgl_walk, phys_cpl);
c4f6d44d 2594 dsgl_walk_add_page(&dsgl_walk, IV + reqctx->b0_len, reqctx->iv_dma);
1f479e4c
HJ		 2595 temp = req->assoclen + req->cryptlen +
2596 (reqctx->op ? -authsize : authsize);
2597 dsgl_walk_add_sg(&dsgl_walk, req->dst, temp, 0);
add92a81 2598 dsgl_walk_end(&dsgl_walk, qid, ctx->pci_chan_id);
2f47d580
HJ		 2599}
2600
6dad4e8a 2601void chcr_add_cipher_src_ent(struct ablkcipher_request *req,
335bcc4a 2602 void *ulptx,
6dad4e8a 2603 struct cipher_wr_param *wrparam)
2f47d580
HJ		 2604{
2605 struct ulptx_walk ulp_walk;
2606 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
335bcc4a 2607 u8 *buf = ulptx;
2f47d580 2608
335bcc4a
HJ		 2609 memcpy(buf, reqctx->iv, IV);
2610 buf += IV;
2f47d580 2611 if (reqctx->imm) {
2f47d580
HJ		 2612 sg_pcopy_to_buffer(req->src, sg_nents(req->src),
2613 buf, wrparam->bytes, reqctx->processed);
2614 } else {
335bcc4a 2615 ulptx_walk_init(&ulp_walk, (struct ulptx_sgl *)buf);
2f47d580
HJ		 2616 ulptx_walk_add_sg(&ulp_walk, reqctx->srcsg, wrparam->bytes,
2617 reqctx->src_ofst);
2618 reqctx->srcsg = ulp_walk.last_sg;
2619 reqctx->src_ofst = ulp_walk.last_sg_len;
2620 ulptx_walk_end(&ulp_walk);
2621 }
2622}
2623
6dad4e8a
AG		 2624void chcr_add_cipher_dst_ent(struct ablkcipher_request *req,
2625 struct cpl_rx_phys_dsgl *phys_cpl,
2626 struct cipher_wr_param *wrparam,
2627 unsigned short qid)
2f47d580
HJ		 2628{
2629 struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
add92a81
HJ		 2630 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req);
2631 struct chcr_context *ctx = c_ctx(tfm);
2f47d580
HJ		 2632 struct dsgl_walk dsgl_walk;
2633
2634 dsgl_walk_init(&dsgl_walk, phys_cpl);
2f47d580
HJ		 2635 dsgl_walk_add_sg(&dsgl_walk, reqctx->dstsg, wrparam->bytes,
2636 reqctx->dst_ofst);
2637 reqctx->dstsg = dsgl_walk.last_sg;
2638 reqctx->dst_ofst = dsgl_walk.last_sg_len;
2639
add92a81 2640 dsgl_walk_end(&dsgl_walk, qid, ctx->pci_chan_id);
2f47d580
HJ		 2641}
2642
6dad4e8a
AG		 2643void chcr_add_hash_src_ent(struct ahash_request *req,
2644 struct ulptx_sgl *ulptx,
2645 struct hash_wr_param *param)
2f47d580
HJ		 2646{
2647 struct ulptx_walk ulp_walk;
2648 struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
2649
5110e655 2650 if (reqctx->hctx_wr.imm) {
2f47d580
HJ		 2651 u8 *buf = (u8 *)ulptx;
2652
2653 if (param->bfr_len) {
2654 memcpy(buf, reqctx->reqbfr, param->bfr_len);
2655 buf += param->bfr_len;
2656 }
5110e655
HJ		 2657
2658 sg_pcopy_to_buffer(reqctx->hctx_wr.srcsg,
2659 sg_nents(reqctx->hctx_wr.srcsg), buf,
2660 param->sg_len, 0);
2f47d580
HJ		 2661 } else {
2662 ulptx_walk_init(&ulp_walk, ulptx);
2663 if (param->bfr_len)
2664 ulptx_walk_add_page(&ulp_walk, param->bfr_len,
c4f6d44d 2665 reqctx->hctx_wr.dma_addr);
5110e655
HJ		 2666 ulptx_walk_add_sg(&ulp_walk, reqctx->hctx_wr.srcsg,
2667 param->sg_len, reqctx->hctx_wr.src_ofst);
2668 reqctx->hctx_wr.srcsg = ulp_walk.last_sg;
2669 reqctx->hctx_wr.src_ofst = ulp_walk.last_sg_len;
db6deea4 2670 ulptx_walk_end(&ulp_walk);
2f47d580
HJ		 2671 }
2672}
2673
6dad4e8a
AG		 2674int chcr_hash_dma_map(struct device *dev,
2675 struct ahash_request *req)
2f47d580
HJ		 2676{
2677 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
2678 int error = 0;
2679
2680 if (!req->nbytes)
2681 return 0;
2682 error = dma_map_sg(dev, req->src, sg_nents(req->src),
2683 DMA_TO_DEVICE);
2684 if (!error)
7814f552 2685 return -ENOMEM;
5110e655 2686 req_ctx->hctx_wr.is_sg_map = 1;
2f47d580
HJ		 2687 return 0;
2688}
2689
6dad4e8a
AG		 2690void chcr_hash_dma_unmap(struct device *dev,
2691 struct ahash_request *req)
2f47d580
HJ		 2692{
2693 struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
2694
2695 if (!req->nbytes)
2696 return;
2697
2698 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2699 DMA_TO_DEVICE);
5110e655 2700 req_ctx->hctx_wr.is_sg_map = 0;
2f47d580
HJ		 2701
2702}
2703
6dad4e8a
AG		 2704int chcr_cipher_dma_map(struct device *dev,
2705 struct ablkcipher_request *req)
2f47d580
HJ		 2706{
2707 int error;
2f47d580
HJ		 2708
2709 if (req->src == req->dst) {
2710 error = dma_map_sg(dev, req->src, sg_nents(req->src),
2711 DMA_BIDIRECTIONAL);
2712 if (!error)
2713 goto err;
2714 } else {
2715 error = dma_map_sg(dev, req->src, sg_nents(req->src),
2716 DMA_TO_DEVICE);
2717 if (!error)
2718 goto err;
2719 error = dma_map_sg(dev, req->dst, sg_nents(req->dst),
2720 DMA_FROM_DEVICE);
2721 if (!error) {
2722 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2723 DMA_TO_DEVICE);
2724 goto err;
2725 }
2726 }
2727
2728 return 0;
2729err:
2f47d580
HJ		 2730 return -ENOMEM;
2731}
6dad4e8a
AG		 2732
2733void chcr_cipher_dma_unmap(struct device *dev,
2734 struct ablkcipher_request *req)
2f47d580 2735{
2f47d580
HJ		 2736 if (req->src == req->dst) {
2737 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2738 DMA_BIDIRECTIONAL);
2739 } else {
2740 dma_unmap_sg(dev, req->src, sg_nents(req->src),
2741 DMA_TO_DEVICE);
2742 dma_unmap_sg(dev, req->dst, sg_nents(req->dst),
2743 DMA_FROM_DEVICE);
2744 }
2745}
2746
2debd332
HJ		 2747static int set_msg_len(u8 *block, unsigned int msglen, int csize)
2748{
2749 __be32 data;
2750
2751 memset(block, 0, csize);
2752 block += csize;
2753
2754 if (csize >= 4)
2755 csize = 4;
2756 else if (msglen > (unsigned int)(1 << (8 * csize)))
2757 return -EOVERFLOW;
2758
2759 data = cpu_to_be32(msglen);
2760 memcpy(block - csize, (u8 *)&data + 4 - csize, csize);
2761
2762 return 0;
2763}
2764
1f479e4c 2765static void generate_b0(struct aead_request *req, u8 *ivptr,
2debd332
HJ		 2766 unsigned short op_type)
2767{
2768 unsigned int l, lp, m;
2769 int rc;
2770 struct crypto_aead *aead = crypto_aead_reqtfm(req);
2771 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2772 u8 *b0 = reqctx->scratch_pad;
2773
2774 m = crypto_aead_authsize(aead);
2775
1f479e4c 2776 memcpy(b0, ivptr, 16);
2debd332
HJ		 2777
2778 lp = b0[0];
2779 l = lp + 1;
2780
2781 /* set m, bits 3-5 */
2782 *b0 |= (8 * ((m - 2) / 2));
2783
2784 /* set adata, bit 6, if associated data is used */
2785 if (req->assoclen)
2786 *b0 |= 64;
2787 rc = set_msg_len(b0 + 16 - l,
2788 (op_type == CHCR_DECRYPT_OP) ?
2789 req->cryptlen - m : req->cryptlen, l);
2790}
2791
2792static inline int crypto_ccm_check_iv(const u8 *iv)
2793{
2794 /* 2 <= L <= 8, so 1 <= L' <= 7. */
2795 if (iv[0] < 1 || iv[0] > 7)
2796 return -EINVAL;
2797
2798 return 0;
2799}
2800
2801static int ccm_format_packet(struct aead_request *req,
1f479e4c 2802 u8 *ivptr,
2debd332 2803 unsigned int sub_type,
4262c98a
HJ		 2804 unsigned short op_type,
2805 unsigned int assoclen)
2debd332
HJ		 2806{
2807 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
1f479e4c
HJ		 2808 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2809 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 2810 int rc = 0;
2811
2debd332 2812 if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) {
1f479e4c
HJ		 2813 ivptr[0] = 3;
2814 memcpy(ivptr + 1, &aeadctx->salt[0], 3);
2815 memcpy(ivptr + 4, req->iv, 8);
2816 memset(ivptr + 12, 0, 4);
2debd332 2817 } else {
1f479e4c 2818 memcpy(ivptr, req->iv, 16);
2debd332 2819 }
4262c98a
HJ		 2820 if (assoclen)
2821 *((unsigned short *)(reqctx->scratch_pad + 16)) =
2822 htons(assoclen);
2823
1f479e4c 2824 generate_b0(req, ivptr, op_type);
2debd332 2825 /* zero the ctr value */
1f479e4c 2826 memset(ivptr + 15 - ivptr[0], 0, ivptr[0] + 1);
2debd332
HJ		 2827 return rc;
2828}
2829
2830static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
2831 unsigned int dst_size,
2832 struct aead_request *req,
2f47d580 2833 unsigned short op_type)
2debd332
HJ		 2834{
2835 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 2836 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 2837 unsigned int cipher_mode = CHCR_SCMD_CIPHER_MODE_AES_CCM;
2838 unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC;
d5a4dfbd 2839 unsigned int c_id = a_ctx(tfm)->tx_chan_id;
2debd332
HJ		 2840 unsigned int ccm_xtra;
2841 unsigned char tag_offset = 0, auth_offset = 0;
2debd332
HJ		 2842 unsigned int assoclen;
2843
2844 if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
2845 assoclen = req->assoclen - 8;
2846 else
2847 assoclen = req->assoclen;
2848 ccm_xtra = CCM_B0_SIZE +
2849 ((assoclen) ? CCM_AAD_FIELD_SIZE : 0);
2850
2851 auth_offset = req->cryptlen ?
1f479e4c 2852 (req->assoclen + IV + 1 + ccm_xtra) : 0;
2debd332
HJ		 2853 if (op_type == CHCR_DECRYPT_OP) {
2854 if (crypto_aead_authsize(tfm) != req->cryptlen)
2855 tag_offset = crypto_aead_authsize(tfm);
2856 else
2857 auth_offset = 0;
2858 }
2859
2860
2861 sec_cpl->op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(c_id,
1f479e4c 2862 2, 1);
2debd332 2863 sec_cpl->pldlen =
1f479e4c 2864 htonl(req->assoclen + IV + req->cryptlen + ccm_xtra);
2debd332
HJ		 2865 /* For CCM there wil be b0 always. So AAD start will be 1 always */
2866 sec_cpl->aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
1f479e4c
HJ		 2867 1 + IV, IV + assoclen + ccm_xtra,
2868 req->assoclen + IV + 1 + ccm_xtra, 0);
2debd332
HJ		 2869
2870 sec_cpl->cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(0,
2871 auth_offset, tag_offset,
2872 (op_type == CHCR_ENCRYPT_OP) ? 0 :
2873 crypto_aead_authsize(tfm));
2874 sec_cpl->seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(op_type,
2875 (op_type == CHCR_ENCRYPT_OP) ? 0 : 1,
0a7bd30c 2876 cipher_mode, mac_mode,
2f47d580 2877 aeadctx->hmac_ctrl, IV >> 1);
2debd332
HJ		 2878
2879 sec_cpl->ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, 0,
2f47d580 2880 0, dst_size);
2debd332
HJ		 2881}
2882
1efb892b
CIK		 2883static int aead_ccm_validate_input(unsigned short op_type,
2884 struct aead_request *req,
2885 struct chcr_aead_ctx *aeadctx,
2886 unsigned int sub_type)
2debd332
HJ		 2887{
2888 if (sub_type != CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) {
2889 if (crypto_ccm_check_iv(req->iv)) {
2890 pr_err("CCM: IV check fails\n");
2891 return -EINVAL;
2892 }
2893 } else {
2894 if (req->assoclen != 16 && req->assoclen != 20) {
2895 pr_err("RFC4309: Invalid AAD length %d\n",
2896 req->assoclen);
2897 return -EINVAL;
2898 }
2899 }
2debd332
HJ		 2900 return 0;
2901}
2902
2debd332
HJ		 2903static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
2904 unsigned short qid,
4262c98a 2905 int size)
2debd332
HJ		 2906{
2907 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 2908 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 2909 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
2910 struct sk_buff *skb = NULL;
2911 struct chcr_wr *chcr_req;
2912 struct cpl_rx_phys_dsgl *phys_cpl;
2f47d580
HJ		 2913 struct ulptx_sgl *ulptx;
2914 unsigned int transhdr_len;
1f479e4c 2915 unsigned int dst_size = 0, kctx_len, dnents, temp, snents;
2f47d580 2916 unsigned int sub_type, assoclen = req->assoclen;
2debd332 2917 unsigned int authsize = crypto_aead_authsize(tfm);
2f47d580 2918 int error = -EINVAL;
1f479e4c 2919 u8 *ivptr;
2debd332
HJ		 2920 gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
2921 GFP_ATOMIC;
2f47d580 2922 struct adapter *adap = padap(a_ctx(tfm)->dev);
2debd332 2923
2f47d580
HJ		 2924 sub_type = get_aead_subtype(tfm);
2925 if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
2926 assoclen -= 8;
4262c98a
HJ		 2927 reqctx->b0_len = CCM_B0_SIZE + (assoclen ? CCM_AAD_FIELD_SIZE : 0);
2928 error = chcr_aead_common_init(req);
2f47d580
HJ		 2929 if (error)
2930 return ERR_PTR(error);
0e93708d 2931
4262c98a 2932 error = aead_ccm_validate_input(reqctx->op, req, aeadctx, sub_type);
5fe8c711 2933 if (error)
2debd332 2934 goto err;
1f479e4c 2935 dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen
4262c98a 2936 + (reqctx->op ? -authsize : authsize),
1f479e4c 2937 CHCR_DST_SG_SIZE, 0);
e1a018e6 2938 dnents += MIN_CCM_SG; // For IV and B0
2f47d580 2939 dst_size = get_space_for_phys_dsgl(dnents);
1f479e4c
HJ		 2940 snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
2941 CHCR_SRC_SG_SIZE, 0);
2942 snents += MIN_CCM_SG; //For B0
125d01ca 2943 kctx_len = roundup(aeadctx->enckey_len, 16) * 2;
2debd332 2944 transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
1f479e4c 2945 reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen +
2f47d580 2946 reqctx->b0_len) <= SGE_MAX_WR_LEN;
1f479e4c 2947 temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen +
125d01ca 2948 reqctx->b0_len, 16) :
1f479e4c 2949 (sgl_len(snents) * 8);
2f47d580 2950 transhdr_len += temp;
125d01ca 2951 transhdr_len = roundup(transhdr_len, 16);
2f47d580
HJ		 2952
2953 if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE -
1f479e4c 2954 reqctx->b0_len, transhdr_len, reqctx->op)) {
ee0863ba 2955 atomic_inc(&adap->chcr_stats.fallback);
4262c98a
HJ		 2956 chcr_aead_common_exit(req);
2957 return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
0e93708d 2958 }
1f479e4c 2959 skb = alloc_skb(transhdr_len, flags);
2debd332 2960
5fe8c711
HJ		 2961 if (!skb) {
2962 error = -ENOMEM;
2debd332 2963 goto err;
5fe8c711 2964 }
2debd332 2965
1f479e4c 2966 chcr_req = __skb_put_zero(skb, transhdr_len);
2debd332 2967
4262c98a 2968 fill_sec_cpl_for_aead(&chcr_req->sec_cpl, dst_size, req, reqctx->op);
2debd332
HJ		 2969
2970 chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
2971 memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
125d01ca
HJ		 2972 memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
2973 aeadctx->key, aeadctx->enckey_len);
2debd332
HJ		 2974
2975 phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
1f479e4c
HJ		 2976 ivptr = (u8 *)(phys_cpl + 1) + dst_size;
2977 ulptx = (struct ulptx_sgl *)(ivptr + IV);
2978 error = ccm_format_packet(req, ivptr, sub_type, reqctx->op, assoclen);
5fe8c711 2979 if (error)
2debd332 2980 goto dstmap_fail;
1f479e4c
HJ		 2981 chcr_add_aead_dst_ent(req, phys_cpl, qid);
2982 chcr_add_aead_src_ent(req, ulptx);
2debd332 2983
ee0863ba 2984 atomic_inc(&adap->chcr_stats.aead_rqst);
1f479e4c
HJ		 2985 temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
2986 kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen +
2f47d580
HJ		 2987 reqctx->b0_len) : 0);
2988 create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, 0,
2989 transhdr_len, temp, 0);
2debd332 2990 reqctx->skb = skb;
2f47d580 2991
2debd332
HJ		 2992 return skb;
2993dstmap_fail:
2994 kfree_skb(skb);
2debd332 2995err:
4262c98a 2996 chcr_aead_common_exit(req);
5fe8c711 2997 return ERR_PTR(error);
2debd332
HJ		 2998}
2999
3000static struct sk_buff *create_gcm_wr(struct aead_request *req,
3001 unsigned short qid,
4262c98a 3002 int size)
2debd332
HJ		 3003{
3004 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 3005 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3006 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
3007 struct sk_buff *skb = NULL;
3008 struct chcr_wr *chcr_req;
3009 struct cpl_rx_phys_dsgl *phys_cpl;
2f47d580 3010 struct ulptx_sgl *ulptx;
1f479e4c 3011 unsigned int transhdr_len, dnents = 0, snents;
2f47d580 3012 unsigned int dst_size = 0, temp = 0, kctx_len, assoclen = req->assoclen;
2debd332 3013 unsigned int authsize = crypto_aead_authsize(tfm);
2f47d580 3014 int error = -EINVAL;
1f479e4c 3015 u8 *ivptr;
2debd332
HJ		 3016 gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
3017 GFP_ATOMIC;
2f47d580 3018 struct adapter *adap = padap(a_ctx(tfm)->dev);
2debd332 3019
2f47d580
HJ		 3020 if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106)
3021 assoclen = req->assoclen - 8;
2debd332 3022
4262c98a
HJ		 3023 reqctx->b0_len = 0;
3024 error = chcr_aead_common_init(req);
e1a018e6
HJ		 3025 if (error)
3026 return ERR_PTR(error);
1f479e4c 3027 dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen +
4262c98a 3028 (reqctx->op ? -authsize : authsize),
1f479e4c
HJ		 3029 CHCR_DST_SG_SIZE, 0);
3030 snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
3031 CHCR_SRC_SG_SIZE, 0);
e1a018e6 3032 dnents += MIN_GCM_SG; // For IV
2f47d580 3033 dst_size = get_space_for_phys_dsgl(dnents);
125d01ca 3034 kctx_len = roundup(aeadctx->enckey_len, 16) + AEAD_H_SIZE;
2debd332 3035 transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
1f479e4c 3036 reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) <=
2f47d580 3037 SGE_MAX_WR_LEN;
1f479e4c
HJ		 3038 temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16) :
3039 (sgl_len(snents) * 8);
2f47d580 3040 transhdr_len += temp;
125d01ca 3041 transhdr_len = roundup(transhdr_len, 16);
2f47d580 3042 if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
4262c98a
HJ		 3043 transhdr_len, reqctx->op)) {
3044
ee0863ba 3045 atomic_inc(&adap->chcr_stats.fallback);
4262c98a
HJ		 3046 chcr_aead_common_exit(req);
3047 return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
0e93708d 3048 }
1f479e4c 3049 skb = alloc_skb(transhdr_len, flags);
5fe8c711
HJ		 3050 if (!skb) {
3051 error = -ENOMEM;
2debd332 3052 goto err;
5fe8c711 3053 }
2debd332 3054
de77b966 3055 chcr_req = __skb_put_zero(skb, transhdr_len);
2debd332 3056
2f47d580 3057 //Offset of tag from end
4262c98a 3058 temp = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize;
2debd332 3059 chcr_req->sec_cpl.op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(
d5a4dfbd 3060 a_ctx(tfm)->tx_chan_id, 2, 1);
0e93708d 3061 chcr_req->sec_cpl.pldlen =
1f479e4c 3062 htonl(req->assoclen + IV + req->cryptlen);
2debd332 3063 chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
1f479e4c
HJ		 3064 assoclen ? 1 + IV : 0,
3065 assoclen ? IV + assoclen : 0,
3066 req->assoclen + IV + 1, 0);
e1a018e6 3067 chcr_req->sec_cpl.cipherstop_lo_authinsert =
1f479e4c 3068 FILL_SEC_CPL_AUTHINSERT(0, req->assoclen + IV + 1,
2f47d580 3069 temp, temp);
e1a018e6 3070 chcr_req->sec_cpl.seqno_numivs =
4262c98a 3071 FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, (reqctx->op ==
2debd332
HJ		 3072 CHCR_ENCRYPT_OP) ? 1 : 0,
3073 CHCR_SCMD_CIPHER_MODE_AES_GCM,
0a7bd30c 3074 CHCR_SCMD_AUTH_MODE_GHASH,
2f47d580 3075 aeadctx->hmac_ctrl, IV >> 1);
2debd332 3076 chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
2f47d580 3077 0, 0, dst_size);
2debd332
HJ		 3078 chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
3079 memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
125d01ca
HJ		 3080 memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
3081 GCM_CTX(aeadctx)->ghash_h, AEAD_H_SIZE);
2debd332 3082
1f479e4c
HJ		 3083 phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
3084 ivptr = (u8 *)(phys_cpl + 1) + dst_size;
2debd332
HJ		 3085 /* prepare a 16 byte iv */
3086 /* S A L T | IV | 0x00000001 */
3087 if (get_aead_subtype(tfm) ==
3088 CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) {
1f479e4c
HJ		 3089 memcpy(ivptr, aeadctx->salt, 4);
3090 memcpy(ivptr + 4, req->iv, GCM_RFC4106_IV_SIZE);
2debd332 3091 } else {
1f479e4c 3092 memcpy(ivptr, req->iv, GCM_AES_IV_SIZE);
2debd332 3093 }
1f479e4c 3094 *((unsigned int *)(ivptr + 12)) = htonl(0x01);
2debd332 3095
1f479e4c 3096 ulptx = (struct ulptx_sgl *)(ivptr + 16);
2debd332 3097
1f479e4c
HJ		 3098 chcr_add_aead_dst_ent(req, phys_cpl, qid);
3099 chcr_add_aead_src_ent(req, ulptx);
ee0863ba 3100 atomic_inc(&adap->chcr_stats.aead_rqst);
1f479e4c
HJ		 3101 temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
3102 kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0);
2f47d580
HJ		 3103 create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
3104 transhdr_len, temp, reqctx->verify);
2debd332 3105 reqctx->skb = skb;
2debd332
HJ		 3106 return skb;
3107
2debd332 3108err:
4262c98a 3109 chcr_aead_common_exit(req);
5fe8c711 3110 return ERR_PTR(error);
2debd332
HJ		 3111}
3112
3113
3114
3115static int chcr_aead_cra_init(struct crypto_aead *tfm)
3116{
2f47d580 3117 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
0e93708d
HJ		 3118 struct aead_alg *alg = crypto_aead_alg(tfm);
3119
3120 aeadctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0,
5fe8c711
HJ		 3121 CRYPTO_ALG_NEED_FALLBACK |
3122 CRYPTO_ALG_ASYNC);
0e93708d
HJ		 3123 if (IS_ERR(aeadctx->sw_cipher))
3124 return PTR_ERR(aeadctx->sw_cipher);
3125 crypto_aead_set_reqsize(tfm, max(sizeof(struct chcr_aead_reqctx),
3126 sizeof(struct aead_request) +
3127 crypto_aead_reqsize(aeadctx->sw_cipher)));
2f47d580 3128 return chcr_device_init(a_ctx(tfm));
2debd332
HJ		 3129}
3130
3131static void chcr_aead_cra_exit(struct crypto_aead *tfm)
3132{
2f47d580 3133 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
0e93708d 3134
0e93708d 3135 crypto_free_aead(aeadctx->sw_cipher);
2debd332
HJ		 3136}
3137
3138static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
3139 unsigned int authsize)
3140{
2f47d580 3141 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3142
3143 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NOP;
3144 aeadctx->mayverify = VERIFY_HW;
0e93708d 3145 return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
2debd332
HJ		 3146}
3147static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
3148 unsigned int authsize)
3149{
2f47d580 3150 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3151 u32 maxauth = crypto_aead_maxauthsize(tfm);
3152
3153 /*SHA1 authsize in ipsec is 12 instead of 10 i.e maxauthsize / 2 is not
3154 * true for sha1. authsize == 12 condition should be before
3155 * authsize == (maxauth >> 1)
3156 */
3157 if (authsize == ICV_4) {
3158 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
3159 aeadctx->mayverify = VERIFY_HW;
3160 } else if (authsize == ICV_6) {
3161 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2;
3162 aeadctx->mayverify = VERIFY_HW;
3163 } else if (authsize == ICV_10) {
3164 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366;
3165 aeadctx->mayverify = VERIFY_HW;
3166 } else if (authsize == ICV_12) {
3167 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
3168 aeadctx->mayverify = VERIFY_HW;
3169 } else if (authsize == ICV_14) {
3170 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
3171 aeadctx->mayverify = VERIFY_HW;
3172 } else if (authsize == (maxauth >> 1)) {
3173 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
3174 aeadctx->mayverify = VERIFY_HW;
3175 } else if (authsize == maxauth) {
3176 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3177 aeadctx->mayverify = VERIFY_HW;
3178 } else {
3179 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3180 aeadctx->mayverify = VERIFY_SW;
3181 }
0e93708d 3182 return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
2debd332
HJ		 3183}
3184
3185
3186static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
3187{
2f47d580 3188 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3189
3190 switch (authsize) {
3191 case ICV_4:
3192 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
3193 aeadctx->mayverify = VERIFY_HW;
3194 break;
3195 case ICV_8:
3196 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
3197 aeadctx->mayverify = VERIFY_HW;
3198 break;
3199 case ICV_12:
fc6176a2
CIK		 3200 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
3201 aeadctx->mayverify = VERIFY_HW;
2debd332
HJ		 3202 break;
3203 case ICV_14:
fc6176a2
CIK		 3204 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
3205 aeadctx->mayverify = VERIFY_HW;
2debd332
HJ		 3206 break;
3207 case ICV_16:
3208 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3209 aeadctx->mayverify = VERIFY_HW;
3210 break;
3211 case ICV_13:
3212 case ICV_15:
3213 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3214 aeadctx->mayverify = VERIFY_SW;
3215 break;
3216 default:
3217
3218 crypto_tfm_set_flags((struct crypto_tfm *) tfm,
3219 CRYPTO_TFM_RES_BAD_KEY_LEN);
3220 return -EINVAL;
3221 }
0e93708d 3222 return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
2debd332
HJ		 3223}
3224
3225static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
3226 unsigned int authsize)
3227{
2f47d580 3228 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3229
3230 switch (authsize) {
3231 case ICV_8:
3232 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
3233 aeadctx->mayverify = VERIFY_HW;
3234 break;
3235 case ICV_12:
3236 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
3237 aeadctx->mayverify = VERIFY_HW;
3238 break;
3239 case ICV_16:
3240 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3241 aeadctx->mayverify = VERIFY_HW;
3242 break;
3243 default:
3244 crypto_tfm_set_flags((struct crypto_tfm *)tfm,
3245 CRYPTO_TFM_RES_BAD_KEY_LEN);
3246 return -EINVAL;
3247 }
0e93708d 3248 return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
2debd332
HJ		 3249}
3250
3251static int chcr_ccm_setauthsize(struct crypto_aead *tfm,
3252 unsigned int authsize)
3253{
2f47d580 3254 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3255
3256 switch (authsize) {
3257 case ICV_4:
3258 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
3259 aeadctx->mayverify = VERIFY_HW;
3260 break;
3261 case ICV_6:
3262 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2;
3263 aeadctx->mayverify = VERIFY_HW;
3264 break;
3265 case ICV_8:
3266 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
3267 aeadctx->mayverify = VERIFY_HW;
3268 break;
3269 case ICV_10:
3270 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366;
3271 aeadctx->mayverify = VERIFY_HW;
3272 break;
3273 case ICV_12:
3274 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
3275 aeadctx->mayverify = VERIFY_HW;
3276 break;
3277 case ICV_14:
3278 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
3279 aeadctx->mayverify = VERIFY_HW;
3280 break;
3281 case ICV_16:
3282 aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
3283 aeadctx->mayverify = VERIFY_HW;
3284 break;
3285 default:
3286 crypto_tfm_set_flags((struct crypto_tfm *)tfm,
3287 CRYPTO_TFM_RES_BAD_KEY_LEN);
3288 return -EINVAL;
3289 }
0e93708d 3290 return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
2debd332
HJ		 3291}
3292
0e93708d 3293static int chcr_ccm_common_setkey(struct crypto_aead *aead,
2debd332
HJ		 3294 const u8 *key,
3295 unsigned int keylen)
3296{
2f47d580 3297 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
2debd332
HJ		 3298 unsigned char ck_size, mk_size;
3299 int key_ctx_size = 0;
3300
125d01ca 3301 key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) * 2;
2debd332 3302 if (keylen == AES_KEYSIZE_128) {
2debd332 3303 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
125d01ca 3304 mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_128;
2debd332
HJ		 3305 } else if (keylen == AES_KEYSIZE_192) {
3306 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
3307 mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_192;
3308 } else if (keylen == AES_KEYSIZE_256) {
3309 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
3310 mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
3311 } else {
3312 crypto_tfm_set_flags((struct crypto_tfm *)aead,
3313 CRYPTO_TFM_RES_BAD_KEY_LEN);
3314 aeadctx->enckey_len = 0;
3315 return -EINVAL;
3316 }
3317 aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, mk_size, 0, 0,
3318 key_ctx_size >> 4);
0e93708d
HJ		 3319 memcpy(aeadctx->key, key, keylen);
3320 aeadctx->enckey_len = keylen;
3321
2debd332
HJ		 3322 return 0;
3323}
3324
0e93708d
HJ		 3325static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
3326 const u8 *key,
3327 unsigned int keylen)
3328{
2f47d580 3329 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
0e93708d
HJ		 3330 int error;
3331
3332 crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
3333 crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
3334 CRYPTO_TFM_REQ_MASK);
3335 error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
3336 crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
3337 crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
3338 CRYPTO_TFM_RES_MASK);
3339 if (error)
3340 return error;
3341 return chcr_ccm_common_setkey(aead, key, keylen);
3342}
3343
2debd332
HJ		 3344static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
3345 unsigned int keylen)
3346{
2f47d580 3347 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
4dbeae42 3348 int error;
2debd332
HJ		 3349
3350 if (keylen < 3) {
3351 crypto_tfm_set_flags((struct crypto_tfm *)aead,
3352 CRYPTO_TFM_RES_BAD_KEY_LEN);
3353 aeadctx->enckey_len = 0;
3354 return -EINVAL;
3355 }
4dbeae42
HJ		 3356 crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
3357 crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
3358 CRYPTO_TFM_REQ_MASK);
3359 error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
3360 crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
3361 crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
3362 CRYPTO_TFM_RES_MASK);
3363 if (error)
3364 return error;
2debd332
HJ		 3365 keylen -= 3;
3366 memcpy(aeadctx->salt, key + keylen, 3);
0e93708d 3367 return chcr_ccm_common_setkey(aead, key, keylen);
2debd332
HJ		 3368}
3369
3370static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
3371 unsigned int keylen)
3372{
2f47d580 3373 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
2debd332 3374 struct chcr_gcm_ctx *gctx = GCM_CTX(aeadctx);
8356ea51 3375 struct crypto_cipher *cipher;
2debd332
HJ		 3376 unsigned int ck_size;
3377 int ret = 0, key_ctx_size = 0;
3378
0e93708d
HJ		 3379 aeadctx->enckey_len = 0;
3380 crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
3381 crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead)
3382 & CRYPTO_TFM_REQ_MASK);
3383 ret = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
3384 crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
3385 crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
3386 CRYPTO_TFM_RES_MASK);
3387 if (ret)
3388 goto out;
3389
7c2cf1c4
HJ		 3390 if (get_aead_subtype(aead) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 &&
3391 keylen > 3) {
2debd332
HJ		 3392 keylen -= 4; /* nonce/salt is present in the last 4 bytes */
3393 memcpy(aeadctx->salt, key + keylen, 4);
3394 }
3395 if (keylen == AES_KEYSIZE_128) {
3396 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
3397 } else if (keylen == AES_KEYSIZE_192) {
3398 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
3399 } else if (keylen == AES_KEYSIZE_256) {
3400 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
3401 } else {
3402 crypto_tfm_set_flags((struct crypto_tfm *)aead,
3403 CRYPTO_TFM_RES_BAD_KEY_LEN);
0e93708d 3404 pr_err("GCM: Invalid key length %d\n", keylen);
2debd332
HJ		 3405 ret = -EINVAL;
3406 goto out;
3407 }
3408
3409 memcpy(aeadctx->key, key, keylen);
3410 aeadctx->enckey_len = keylen;
125d01ca 3411 key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) +
2debd332 3412 AEAD_H_SIZE;
125d01ca 3413 aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size,
2debd332
HJ		 3414 CHCR_KEYCTX_MAC_KEY_SIZE_128,
3415 0, 0,
3416 key_ctx_size >> 4);
8356ea51
HJ		 3417 /* Calculate the H = CIPH(K, 0 repeated 16 times).
3418 * It will go in key context
2debd332 3419 */
8356ea51
HJ		 3420 cipher = crypto_alloc_cipher("aes-generic", 0, 0);
3421 if (IS_ERR(cipher)) {
2debd332
HJ		 3422 aeadctx->enckey_len = 0;
3423 ret = -ENOMEM;
3424 goto out;
3425 }
8356ea51
HJ		 3426
3427 ret = crypto_cipher_setkey(cipher, key, keylen);
2debd332
HJ		 3428 if (ret) {
3429 aeadctx->enckey_len = 0;
3430 goto out1;
3431 }
3432 memset(gctx->ghash_h, 0, AEAD_H_SIZE);
8356ea51 3433 crypto_cipher_encrypt_one(cipher, gctx->ghash_h, gctx->ghash_h);
2debd332
HJ		 3434
3435out1:
8356ea51 3436 crypto_free_cipher(cipher);
2debd332
HJ		 3437out:
3438 return ret;
3439}
3440
3441static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
3442 unsigned int keylen)
3443{
2f47d580 3444 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
2debd332
HJ		 3445 struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
3446 /* it contains auth and cipher key both*/
3447 struct crypto_authenc_keys keys;
3d64bd67 3448 unsigned int bs, subtype;
2debd332
HJ		 3449 unsigned int max_authsize = crypto_aead_alg(authenc)->maxauthsize;
3450 int err = 0, i, key_ctx_len = 0;
3451 unsigned char ck_size = 0;
3452 unsigned char pad[CHCR_HASH_MAX_BLOCK_SIZE_128] = { 0 };
ec1bca94 3453 struct crypto_shash *base_hash = ERR_PTR(-EINVAL);
2debd332
HJ		 3454 struct algo_param param;
3455 int align;
3456 u8 *o_ptr = NULL;
3457
0e93708d
HJ		 3458 crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
3459 crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
3460 & CRYPTO_TFM_REQ_MASK);
3461 err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
3462 crypto_aead_clear_flags(authenc, CRYPTO_TFM_RES_MASK);
3463 crypto_aead_set_flags(authenc, crypto_aead_get_flags(aeadctx->sw_cipher)
3464 & CRYPTO_TFM_RES_MASK);
3465 if (err)
3466 goto out;
3467
2debd332
HJ		 3468 if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
3469 crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
3470 goto out;
3471 }
3472
3473 if (get_alg_config(&param, max_authsize)) {
3474 pr_err("chcr : Unsupported digest size\n");
3475 goto out;
3476 }
3d64bd67
HJ		 3477 subtype = get_aead_subtype(authenc);
3478 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
3479 subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
3480 if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE)
3481 goto out;
3482 memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen
3483 - CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE);
3484 keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
3485 }
2debd332
HJ		 3486 if (keys.enckeylen == AES_KEYSIZE_128) {
3487 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
3488 } else if (keys.enckeylen == AES_KEYSIZE_192) {
3489 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
3490 } else if (keys.enckeylen == AES_KEYSIZE_256) {
3491 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
3492 } else {
3493 pr_err("chcr : Unsupported cipher key\n");
3494 goto out;
3495 }
3496
3497 /* Copy only encryption key. We use authkey to generate h(ipad) and
3498 * h(opad) so authkey is not needed again. authkeylen size have the
3499 * size of the hash digest size.
3500 */
3501 memcpy(aeadctx->key, keys.enckey, keys.enckeylen);
3502 aeadctx->enckey_len = keys.enckeylen;
3d64bd67
HJ		 3503 if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA ||
3504 subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) {
2debd332 3505
3d64bd67
HJ		 3506 get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key,
3507 aeadctx->enckey_len << 3);
3508 }
2debd332
HJ		 3509 base_hash = chcr_alloc_shash(max_authsize);
3510 if (IS_ERR(base_hash)) {
3511 pr_err("chcr : Base driver cannot be loaded\n");
0e93708d 3512 aeadctx->enckey_len = 0;
eb526531 3513 memzero_explicit(&keys, sizeof(keys));
0e93708d 3514 return -EINVAL;
324429d7 3515 }
2debd332
HJ		 3516 {
3517 SHASH_DESC_ON_STACK(shash, base_hash);
6faa0f57 3518
2debd332
HJ		 3519 shash->tfm = base_hash;
3520 shash->flags = crypto_shash_get_flags(base_hash);
3521 bs = crypto_shash_blocksize(base_hash);
3522 align = KEYCTX_ALIGN_PAD(max_authsize);
3523 o_ptr = actx->h_iopad + param.result_size + align;
3524
3525 if (keys.authkeylen > bs) {
3526 err = crypto_shash_digest(shash, keys.authkey,
3527 keys.authkeylen,
3528 o_ptr);
3529 if (err) {
3530 pr_err("chcr : Base driver cannot be loaded\n");
3531 goto out;
3532 }
3533 keys.authkeylen = max_authsize;
3534 } else
3535 memcpy(o_ptr, keys.authkey, keys.authkeylen);
3536
3537 /* Compute the ipad-digest*/
3538 memset(pad + keys.authkeylen, 0, bs - keys.authkeylen);
3539 memcpy(pad, o_ptr, keys.authkeylen);
3540 for (i = 0; i < bs >> 2; i++)
3541 *((unsigned int *)pad + i) ^= IPAD_DATA;
3542
3543 if (chcr_compute_partial_hash(shash, pad, actx->h_iopad,
3544 max_authsize))
3545 goto out;
3546 /* Compute the opad-digest */
3547 memset(pad + keys.authkeylen, 0, bs - keys.authkeylen);
3548 memcpy(pad, o_ptr, keys.authkeylen);
3549 for (i = 0; i < bs >> 2; i++)
3550 *((unsigned int *)pad + i) ^= OPAD_DATA;
3551
3552 if (chcr_compute_partial_hash(shash, pad, o_ptr, max_authsize))
3553 goto out;
3554
3555 /* convert the ipad and opad digest to network order */
3556 chcr_change_order(actx->h_iopad, param.result_size);
3557 chcr_change_order(o_ptr, param.result_size);
3558 key_ctx_len = sizeof(struct _key_ctx) +
125d01ca 3559 roundup(keys.enckeylen, 16) +
2debd332
HJ		 3560 (param.result_size + align) * 2;
3561 aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, param.mk_size,
3562 0, 1, key_ctx_len >> 4);
3563 actx->auth_mode = param.auth_mode;
3564 chcr_free_shash(base_hash);
3565
eb526531 3566 memzero_explicit(&keys, sizeof(keys));
2debd332
HJ		 3567 return 0;
3568 }
3569out:
3570 aeadctx->enckey_len = 0;
eb526531 3571 memzero_explicit(&keys, sizeof(keys));
ec1bca94 3572 if (!IS_ERR(base_hash))
2debd332
HJ		 3573 chcr_free_shash(base_hash);
3574 return -EINVAL;
324429d7
HS		 3575}
3576
2debd332
HJ		 3577static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc,
3578 const u8 *key, unsigned int keylen)
3579{
2f47d580 3580 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
2debd332
HJ		 3581 struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
3582 struct crypto_authenc_keys keys;
0e93708d 3583 int err;
2debd332 3584 /* it contains auth and cipher key both*/
3d64bd67 3585 unsigned int subtype;
2debd332
HJ		 3586 int key_ctx_len = 0;
3587 unsigned char ck_size = 0;
3588
0e93708d
HJ		 3589 crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
3590 crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
3591 & CRYPTO_TFM_REQ_MASK);
3592 err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
3593 crypto_aead_clear_flags(authenc, CRYPTO_TFM_RES_MASK);
3594 crypto_aead_set_flags(authenc, crypto_aead_get_flags(aeadctx->sw_cipher)
3595 & CRYPTO_TFM_RES_MASK);
3596 if (err)
3597 goto out;
3598
2debd332
HJ		 3599 if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
3600 crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
3601 goto out;
3602 }
3d64bd67
HJ		 3603 subtype = get_aead_subtype(authenc);
3604 if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
3605 subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
3606 if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE)
3607 goto out;
3608 memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen
3609 - CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE);
3610 keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
3611 }
2debd332
HJ		 3612 if (keys.enckeylen == AES_KEYSIZE_128) {
3613 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
3614 } else if (keys.enckeylen == AES_KEYSIZE_192) {
3615 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
3616 } else if (keys.enckeylen == AES_KEYSIZE_256) {
3617 ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
3618 } else {
3d64bd67 3619 pr_err("chcr : Unsupported cipher key %d\n", keys.enckeylen);
2debd332
HJ		 3620 goto out;
3621 }
3622 memcpy(aeadctx->key, keys.enckey, keys.enckeylen);
3623 aeadctx->enckey_len = keys.enckeylen;
3d64bd67
HJ		 3624 if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA ||
3625 subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) {
3626 get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key,
3627 aeadctx->enckey_len << 3);
3628 }
125d01ca 3629 key_ctx_len = sizeof(struct _key_ctx) + roundup(keys.enckeylen, 16);
2debd332
HJ		 3630
3631 aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, 0,
3632 0, key_ctx_len >> 4);
3633 actx->auth_mode = CHCR_SCMD_AUTH_MODE_NOP;
eb526531 3634 memzero_explicit(&keys, sizeof(keys));
2debd332
HJ		 3635 return 0;
3636out:
3637 aeadctx->enckey_len = 0;
eb526531 3638 memzero_explicit(&keys, sizeof(keys));
2debd332
HJ		 3639 return -EINVAL;
3640}
6dad4e8a
AG		 3641
3642static int chcr_aead_op(struct aead_request *req,
6dad4e8a
AG		 3643 int size,
3644 create_wr_t create_wr_fn)
3645{
3646 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
fef4912b 3647 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
6dad4e8a
AG		 3648 struct uld_ctx *u_ctx;
3649 struct sk_buff *skb;
6faa0f57 3650 int isfull = 0;
fef4912b 3651 struct chcr_dev *cdev;
6dad4e8a 3652
fef4912b
HJ		 3653 cdev = a_ctx(tfm)->dev;
3654 if (!cdev) {
6dad4e8a
AG		 3655 pr_err("chcr : %s : No crypto device.\n", __func__);
3656 return -ENXIO;
3657 }
fef4912b
HJ		 3658
3659 if (chcr_inc_wrcount(cdev)) {
3660 /* Detach state for CHCR means lldi or padap is freed.
3661 * We cannot increment fallback here.
3662 */
3663 return chcr_aead_fallback(req, reqctx->op);
3664 }
3665
6dad4e8a
AG		 3666 u_ctx = ULD_CTX(a_ctx(tfm));
3667 if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
3668 a_ctx(tfm)->tx_qidx)) {
6faa0f57 3669 isfull = 1;
fef4912b
HJ		 3670 if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
3671 chcr_dec_wrcount(cdev);
6faa0f57 3672 return -ENOSPC;
fef4912b 3673 }
6dad4e8a
AG		 3674 }
3675
3676 /* Form a WR from req */
4262c98a 3677 skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[a_ctx(tfm)->rx_qidx], size);
6dad4e8a 3678
fef4912b
HJ		 3679 if (IS_ERR(skb) || !skb) {
3680 chcr_dec_wrcount(cdev);
6dad4e8a 3681 return PTR_ERR(skb);
fef4912b 3682 }
6dad4e8a
AG		 3683
3684 skb->dev = u_ctx->lldi.ports[0];
3685 set_wr_txq(skb, CPL_PRIORITY_DATA, a_ctx(tfm)->tx_qidx);
3686 chcr_send_wr(skb);
6faa0f57 3687 return isfull ? -EBUSY : -EINPROGRESS;
6dad4e8a
AG		 3688}
3689
2debd332
HJ		 3690static int chcr_aead_encrypt(struct aead_request *req)
3691{
3692 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
3693 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
3694
3695 reqctx->verify = VERIFY_HW;
4262c98a 3696 reqctx->op = CHCR_ENCRYPT_OP;
2debd332
HJ		 3697
3698 switch (get_aead_subtype(tfm)) {
3d64bd67
HJ		 3699 case CRYPTO_ALG_SUB_TYPE_CTR_SHA:
3700 case CRYPTO_ALG_SUB_TYPE_CBC_SHA:
3701 case CRYPTO_ALG_SUB_TYPE_CBC_NULL:
3702 case CRYPTO_ALG_SUB_TYPE_CTR_NULL:
4262c98a 3703 return chcr_aead_op(req, 0, create_authenc_wr);
2debd332
HJ		 3704 case CRYPTO_ALG_SUB_TYPE_AEAD_CCM:
3705 case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309:
4262c98a 3706 return chcr_aead_op(req, 0, create_aead_ccm_wr);
2debd332 3707 default:
4262c98a 3708 return chcr_aead_op(req, 0, create_gcm_wr);
2debd332
HJ		 3709 }
3710}
3711
3712static int chcr_aead_decrypt(struct aead_request *req)
3713{
3714 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
2f47d580 3715 struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
2debd332
HJ		 3716 struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
3717 int size;
3718
3719 if (aeadctx->mayverify == VERIFY_SW) {
3720 size = crypto_aead_maxauthsize(tfm);
3721 reqctx->verify = VERIFY_SW;
3722 } else {
3723 size = 0;
3724 reqctx->verify = VERIFY_HW;
3725 }
4262c98a 3726 reqctx->op = CHCR_DECRYPT_OP;
2debd332 3727 switch (get_aead_subtype(tfm)) {
3d64bd67
HJ		 3728 case CRYPTO_ALG_SUB_TYPE_CBC_SHA:
3729 case CRYPTO_ALG_SUB_TYPE_CTR_SHA:
3730 case CRYPTO_ALG_SUB_TYPE_CBC_NULL:
3731 case CRYPTO_ALG_SUB_TYPE_CTR_NULL:
4262c98a 3732 return chcr_aead_op(req, size, create_authenc_wr);
2debd332
HJ		 3733 case CRYPTO_ALG_SUB_TYPE_AEAD_CCM:
3734 case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309:
4262c98a 3735 return chcr_aead_op(req, size, create_aead_ccm_wr);
2debd332 3736 default:
4262c98a 3737 return chcr_aead_op(req, size, create_gcm_wr);
2debd332
HJ		 3738 }
3739}
3740
324429d7
HS		 3741static struct chcr_alg_template driver_algs[] = {
3742 /* AES-CBC */
3743 {
b8fd1f41 3744 .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_CBC,
324429d7
HS		 3745 .is_registered = 0,
3746 .alg.crypto = {
3747 .cra_name = "cbc(aes)",
2debd332 3748 .cra_driver_name = "cbc-aes-chcr",
324429d7 3749 .cra_blocksize = AES_BLOCK_SIZE,
324429d7 3750 .cra_init = chcr_cra_init,
b8fd1f41 3751 .cra_exit = chcr_cra_exit,
324429d7
HS		 3752 .cra_u.ablkcipher = {
3753 .min_keysize = AES_MIN_KEY_SIZE,
3754 .max_keysize = AES_MAX_KEY_SIZE,
3755 .ivsize = AES_BLOCK_SIZE,
3756 .setkey = chcr_aes_cbc_setkey,
3757 .encrypt = chcr_aes_encrypt,
3758 .decrypt = chcr_aes_decrypt,
3759 }
3760 }
3761 },
3762 {
b8fd1f41 3763 .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_XTS,
324429d7
HS		 3764 .is_registered = 0,
3765 .alg.crypto = {
3766 .cra_name = "xts(aes)",
2debd332 3767 .cra_driver_name = "xts-aes-chcr",
324429d7 3768 .cra_blocksize = AES_BLOCK_SIZE,
324429d7
HS		 3769 .cra_init = chcr_cra_init,
3770 .cra_exit = NULL,
b8fd1f41 3771 .cra_u .ablkcipher = {
324429d7
HS		 3772 .min_keysize = 2 * AES_MIN_KEY_SIZE,
3773 .max_keysize = 2 * AES_MAX_KEY_SIZE,
3774 .ivsize = AES_BLOCK_SIZE,
3775 .setkey = chcr_aes_xts_setkey,
3776 .encrypt = chcr_aes_encrypt,
3777 .decrypt = chcr_aes_decrypt,
3778 }
3779 }
b8fd1f41
HJ		 3780 },
3781 {
3782 .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_CTR,
3783 .is_registered = 0,
3784 .alg.crypto = {
3785 .cra_name = "ctr(aes)",
3786 .cra_driver_name = "ctr-aes-chcr",
3787 .cra_blocksize = 1,
3788 .cra_init = chcr_cra_init,
3789 .cra_exit = chcr_cra_exit,
3790 .cra_u.ablkcipher = {
3791 .min_keysize = AES_MIN_KEY_SIZE,
3792 .max_keysize = AES_MAX_KEY_SIZE,
3793 .ivsize = AES_BLOCK_SIZE,
3794 .setkey = chcr_aes_ctr_setkey,
3795 .encrypt = chcr_aes_encrypt,
3796 .decrypt = chcr_aes_decrypt,
3797 }
3798 }
3799 },
3800 {
3801 .type = CRYPTO_ALG_TYPE_ABLKCIPHER |
3802 CRYPTO_ALG_SUB_TYPE_CTR_RFC3686,
3803 .is_registered = 0,
3804 .alg.crypto = {
3805 .cra_name = "rfc3686(ctr(aes))",
3806 .cra_driver_name = "rfc3686-ctr-aes-chcr",
3807 .cra_blocksize = 1,
3808 .cra_init = chcr_rfc3686_init,
3809 .cra_exit = chcr_cra_exit,
3810 .cra_u.ablkcipher = {
3811 .min_keysize = AES_MIN_KEY_SIZE +
3812 CTR_RFC3686_NONCE_SIZE,
3813 .max_keysize = AES_MAX_KEY_SIZE +
3814 CTR_RFC3686_NONCE_SIZE,
3815 .ivsize = CTR_RFC3686_IV_SIZE,
3816 .setkey = chcr_aes_rfc3686_setkey,
3817 .encrypt = chcr_aes_encrypt,
3818 .decrypt = chcr_aes_decrypt,
b8fd1f41 3819 }
324429d7
HS		 3820 }
3821 },
3822 /* SHA */
3823 {
3824 .type = CRYPTO_ALG_TYPE_AHASH,
3825 .is_registered = 0,
3826 .alg.hash = {
3827 .halg.digestsize = SHA1_DIGEST_SIZE,
3828 .halg.base = {
3829 .cra_name = "sha1",
3830 .cra_driver_name = "sha1-chcr",
3831 .cra_blocksize = SHA1_BLOCK_SIZE,
3832 }
3833 }
3834 },
3835 {
3836 .type = CRYPTO_ALG_TYPE_AHASH,
3837 .is_registered = 0,
3838 .alg.hash = {
3839 .halg.digestsize = SHA256_DIGEST_SIZE,
3840 .halg.base = {
3841 .cra_name = "sha256",
3842 .cra_driver_name = "sha256-chcr",
3843 .cra_blocksize = SHA256_BLOCK_SIZE,
3844 }
3845 }
3846 },
3847 {
3848 .type = CRYPTO_ALG_TYPE_AHASH,
3849 .is_registered = 0,
3850 .alg.hash = {
3851 .halg.digestsize = SHA224_DIGEST_SIZE,
3852 .halg.base = {
3853 .cra_name = "sha224",
3854 .cra_driver_name = "sha224-chcr",
3855 .cra_blocksize = SHA224_BLOCK_SIZE,
3856 }
3857 }
3858 },
3859 {
3860 .type = CRYPTO_ALG_TYPE_AHASH,
3861 .is_registered = 0,
3862 .alg.hash = {
3863 .halg.digestsize = SHA384_DIGEST_SIZE,
3864 .halg.base = {
3865 .cra_name = "sha384",
3866 .cra_driver_name = "sha384-chcr",
3867 .cra_blocksize = SHA384_BLOCK_SIZE,
3868 }
3869 }
3870 },
3871 {
3872 .type = CRYPTO_ALG_TYPE_AHASH,
3873 .is_registered = 0,
3874 .alg.hash = {
3875 .halg.digestsize = SHA512_DIGEST_SIZE,
3876 .halg.base = {
3877 .cra_name = "sha512",
3878 .cra_driver_name = "sha512-chcr",
3879 .cra_blocksize = SHA512_BLOCK_SIZE,
3880 }
3881 }
3882 },
3883 /* HMAC */
3884 {
3885 .type = CRYPTO_ALG_TYPE_HMAC,
3886 .is_registered = 0,
3887 .alg.hash = {
3888 .halg.digestsize = SHA1_DIGEST_SIZE,
3889 .halg.base = {
3890 .cra_name = "hmac(sha1)",
2debd332 3891 .cra_driver_name = "hmac-sha1-chcr",
324429d7
HS		 3892 .cra_blocksize = SHA1_BLOCK_SIZE,
3893 }
3894 }
3895 },
3896 {
3897 .type = CRYPTO_ALG_TYPE_HMAC,
3898 .is_registered = 0,
3899 .alg.hash = {
3900 .halg.digestsize = SHA224_DIGEST_SIZE,
3901 .halg.base = {
3902 .cra_name = "hmac(sha224)",
2debd332 3903 .cra_driver_name = "hmac-sha224-chcr",
324429d7
HS		 3904 .cra_blocksize = SHA224_BLOCK_SIZE,
3905 }
3906 }
3907 },
3908 {
3909 .type = CRYPTO_ALG_TYPE_HMAC,
3910 .is_registered = 0,
3911 .alg.hash = {
3912 .halg.digestsize = SHA256_DIGEST_SIZE,
3913 .halg.base = {
3914 .cra_name = "hmac(sha256)",
2debd332 3915 .cra_driver_name = "hmac-sha256-chcr",
324429d7
HS		 3916 .cra_blocksize = SHA256_BLOCK_SIZE,
3917 }
3918 }
3919 },
3920 {
3921 .type = CRYPTO_ALG_TYPE_HMAC,
3922 .is_registered = 0,
3923 .alg.hash = {
3924 .halg.digestsize = SHA384_DIGEST_SIZE,
3925 .halg.base = {
3926 .cra_name = "hmac(sha384)",
2debd332 3927 .cra_driver_name = "hmac-sha384-chcr",
324429d7
HS		 3928 .cra_blocksize = SHA384_BLOCK_SIZE,
3929 }
3930 }
3931 },
3932 {
3933 .type = CRYPTO_ALG_TYPE_HMAC,
3934 .is_registered = 0,
3935 .alg.hash = {
3936 .halg.digestsize = SHA512_DIGEST_SIZE,
3937 .halg.base = {
3938 .cra_name = "hmac(sha512)",
2debd332 3939 .cra_driver_name = "hmac-sha512-chcr",
324429d7
HS		 3940 .cra_blocksize = SHA512_BLOCK_SIZE,
3941 }
3942 }
3943 },
2debd332
HJ		 3944 /* Add AEAD Algorithms */
3945 {
3946 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_GCM,
3947 .is_registered = 0,
3948 .alg.aead = {
3949 .base = {
3950 .cra_name = "gcm(aes)",
3951 .cra_driver_name = "gcm-aes-chcr",
3952 .cra_blocksize = 1,
e29abda5 3953 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 3954 .cra_ctxsize = sizeof(struct chcr_context) +
3955 sizeof(struct chcr_aead_ctx) +
3956 sizeof(struct chcr_gcm_ctx),
3957 },
8f6acb7f 3958 .ivsize = GCM_AES_IV_SIZE,
2debd332
HJ		 3959 .maxauthsize = GHASH_DIGEST_SIZE,
3960 .setkey = chcr_gcm_setkey,
3961 .setauthsize = chcr_gcm_setauthsize,
3962 }
3963 },
3964 {
3965 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106,
3966 .is_registered = 0,
3967 .alg.aead = {
3968 .base = {
3969 .cra_name = "rfc4106(gcm(aes))",
3970 .cra_driver_name = "rfc4106-gcm-aes-chcr",
3971 .cra_blocksize = 1,
e29abda5 3972 .cra_priority = CHCR_AEAD_PRIORITY + 1,
2debd332
HJ		 3973 .cra_ctxsize = sizeof(struct chcr_context) +
3974 sizeof(struct chcr_aead_ctx) +
3975 sizeof(struct chcr_gcm_ctx),
3976
3977 },
8f6acb7f 3978 .ivsize = GCM_RFC4106_IV_SIZE,
2debd332
HJ		 3979 .maxauthsize = GHASH_DIGEST_SIZE,
3980 .setkey = chcr_gcm_setkey,
3981 .setauthsize = chcr_4106_4309_setauthsize,
3982 }
3983 },
3984 {
3985 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_CCM,
3986 .is_registered = 0,
3987 .alg.aead = {
3988 .base = {
3989 .cra_name = "ccm(aes)",
3990 .cra_driver_name = "ccm-aes-chcr",
3991 .cra_blocksize = 1,
e29abda5 3992 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 3993 .cra_ctxsize = sizeof(struct chcr_context) +
3994 sizeof(struct chcr_aead_ctx),
3995
3996 },
3997 .ivsize = AES_BLOCK_SIZE,
3998 .maxauthsize = GHASH_DIGEST_SIZE,
3999 .setkey = chcr_aead_ccm_setkey,
4000 .setauthsize = chcr_ccm_setauthsize,
4001 }
4002 },
4003 {
4004 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309,
4005 .is_registered = 0,
4006 .alg.aead = {
4007 .base = {
4008 .cra_name = "rfc4309(ccm(aes))",
4009 .cra_driver_name = "rfc4309-ccm-aes-chcr",
4010 .cra_blocksize = 1,
e29abda5 4011 .cra_priority = CHCR_AEAD_PRIORITY + 1,
2debd332
HJ		 4012 .cra_ctxsize = sizeof(struct chcr_context) +
4013 sizeof(struct chcr_aead_ctx),
4014
4015 },
4016 .ivsize = 8,
4017 .maxauthsize = GHASH_DIGEST_SIZE,
4018 .setkey = chcr_aead_rfc4309_setkey,
4019 .setauthsize = chcr_4106_4309_setauthsize,
4020 }
4021 },
4022 {
3d64bd67 4023 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
2debd332
HJ		 4024 .is_registered = 0,
4025 .alg.aead = {
4026 .base = {
4027 .cra_name = "authenc(hmac(sha1),cbc(aes))",
4028 .cra_driver_name =
4029 "authenc-hmac-sha1-cbc-aes-chcr",
4030 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4031 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4032 .cra_ctxsize = sizeof(struct chcr_context) +
4033 sizeof(struct chcr_aead_ctx) +
4034 sizeof(struct chcr_authenc_ctx),
4035
4036 },
4037 .ivsize = AES_BLOCK_SIZE,
4038 .maxauthsize = SHA1_DIGEST_SIZE,
4039 .setkey = chcr_authenc_setkey,
4040 .setauthsize = chcr_authenc_setauthsize,
4041 }
4042 },
4043 {
3d64bd67 4044 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
2debd332
HJ		 4045 .is_registered = 0,
4046 .alg.aead = {
4047 .base = {
4048
4049 .cra_name = "authenc(hmac(sha256),cbc(aes))",
4050 .cra_driver_name =
4051 "authenc-hmac-sha256-cbc-aes-chcr",
4052 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4053 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4054 .cra_ctxsize = sizeof(struct chcr_context) +
4055 sizeof(struct chcr_aead_ctx) +
4056 sizeof(struct chcr_authenc_ctx),
4057
4058 },
4059 .ivsize = AES_BLOCK_SIZE,
4060 .maxauthsize = SHA256_DIGEST_SIZE,
4061 .setkey = chcr_authenc_setkey,
4062 .setauthsize = chcr_authenc_setauthsize,
4063 }
4064 },
4065 {
3d64bd67 4066 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
2debd332
HJ		 4067 .is_registered = 0,
4068 .alg.aead = {
4069 .base = {
4070 .cra_name = "authenc(hmac(sha224),cbc(aes))",
4071 .cra_driver_name =
4072 "authenc-hmac-sha224-cbc-aes-chcr",
4073 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4074 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4075 .cra_ctxsize = sizeof(struct chcr_context) +
4076 sizeof(struct chcr_aead_ctx) +
4077 sizeof(struct chcr_authenc_ctx),
4078 },
4079 .ivsize = AES_BLOCK_SIZE,
4080 .maxauthsize = SHA224_DIGEST_SIZE,
4081 .setkey = chcr_authenc_setkey,
4082 .setauthsize = chcr_authenc_setauthsize,
4083 }
4084 },
4085 {
3d64bd67 4086 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
2debd332
HJ		 4087 .is_registered = 0,
4088 .alg.aead = {
4089 .base = {
4090 .cra_name = "authenc(hmac(sha384),cbc(aes))",
4091 .cra_driver_name =
4092 "authenc-hmac-sha384-cbc-aes-chcr",
4093 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4094 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4095 .cra_ctxsize = sizeof(struct chcr_context) +
4096 sizeof(struct chcr_aead_ctx) +
4097 sizeof(struct chcr_authenc_ctx),
4098
4099 },
4100 .ivsize = AES_BLOCK_SIZE,
4101 .maxauthsize = SHA384_DIGEST_SIZE,
4102 .setkey = chcr_authenc_setkey,
4103 .setauthsize = chcr_authenc_setauthsize,
4104 }
4105 },
4106 {
3d64bd67 4107 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
2debd332
HJ		 4108 .is_registered = 0,
4109 .alg.aead = {
4110 .base = {
4111 .cra_name = "authenc(hmac(sha512),cbc(aes))",
4112 .cra_driver_name =
4113 "authenc-hmac-sha512-cbc-aes-chcr",
4114 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4115 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4116 .cra_ctxsize = sizeof(struct chcr_context) +
4117 sizeof(struct chcr_aead_ctx) +
4118 sizeof(struct chcr_authenc_ctx),
4119
4120 },
4121 .ivsize = AES_BLOCK_SIZE,
4122 .maxauthsize = SHA512_DIGEST_SIZE,
4123 .setkey = chcr_authenc_setkey,
4124 .setauthsize = chcr_authenc_setauthsize,
4125 }
4126 },
4127 {
3d64bd67 4128 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_NULL,
2debd332
HJ		 4129 .is_registered = 0,
4130 .alg.aead = {
4131 .base = {
4132 .cra_name = "authenc(digest_null,cbc(aes))",
4133 .cra_driver_name =
4134 "authenc-digest_null-cbc-aes-chcr",
4135 .cra_blocksize = AES_BLOCK_SIZE,
e29abda5 4136 .cra_priority = CHCR_AEAD_PRIORITY,
2debd332
HJ		 4137 .cra_ctxsize = sizeof(struct chcr_context) +
4138 sizeof(struct chcr_aead_ctx) +
4139 sizeof(struct chcr_authenc_ctx),
4140
4141 },
4142 .ivsize = AES_BLOCK_SIZE,
4143 .maxauthsize = 0,
4144 .setkey = chcr_aead_digest_null_setkey,
4145 .setauthsize = chcr_authenc_null_setauthsize,
4146 }
4147 },
3d64bd67
HJ		 4148 {
4149 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
4150 .is_registered = 0,
4151 .alg.aead = {
4152 .base = {
4153 .cra_name = "authenc(hmac(sha1),rfc3686(ctr(aes)))",
4154 .cra_driver_name =
4155 "authenc-hmac-sha1-rfc3686-ctr-aes-chcr",
4156 .cra_blocksize = 1,
4157 .cra_priority = CHCR_AEAD_PRIORITY,
4158 .cra_ctxsize = sizeof(struct chcr_context) +
4159 sizeof(struct chcr_aead_ctx) +
4160 sizeof(struct chcr_authenc_ctx),
4161
4162 },
4163 .ivsize = CTR_RFC3686_IV_SIZE,
4164 .maxauthsize = SHA1_DIGEST_SIZE,
4165 .setkey = chcr_authenc_setkey,
4166 .setauthsize = chcr_authenc_setauthsize,
4167 }
4168 },
4169 {
4170 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
4171 .is_registered = 0,
4172 .alg.aead = {
4173 .base = {
4174
4175 .cra_name = "authenc(hmac(sha256),rfc3686(ctr(aes)))",
4176 .cra_driver_name =
4177 "authenc-hmac-sha256-rfc3686-ctr-aes-chcr",
4178 .cra_blocksize = 1,
4179 .cra_priority = CHCR_AEAD_PRIORITY,
4180 .cra_ctxsize = sizeof(struct chcr_context) +
4181 sizeof(struct chcr_aead_ctx) +
4182 sizeof(struct chcr_authenc_ctx),
4183
4184 },
4185 .ivsize = CTR_RFC3686_IV_SIZE,
4186 .maxauthsize = SHA256_DIGEST_SIZE,
4187 .setkey = chcr_authenc_setkey,
4188 .setauthsize = chcr_authenc_setauthsize,
4189 }
4190 },
4191 {
4192 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
4193 .is_registered = 0,
4194 .alg.aead = {
4195 .base = {
4196 .cra_name = "authenc(hmac(sha224),rfc3686(ctr(aes)))",
4197 .cra_driver_name =
4198 "authenc-hmac-sha224-rfc3686-ctr-aes-chcr",
4199 .cra_blocksize = 1,
4200 .cra_priority = CHCR_AEAD_PRIORITY,
4201 .cra_ctxsize = sizeof(struct chcr_context) +
4202 sizeof(struct chcr_aead_ctx) +
4203 sizeof(struct chcr_authenc_ctx),
4204 },
4205 .ivsize = CTR_RFC3686_IV_SIZE,
4206 .maxauthsize = SHA224_DIGEST_SIZE,
4207 .setkey = chcr_authenc_setkey,
4208 .setauthsize = chcr_authenc_setauthsize,
4209 }
4210 },
4211 {
4212 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
4213 .is_registered = 0,
4214 .alg.aead = {
4215 .base = {
4216 .cra_name = "authenc(hmac(sha384),rfc3686(ctr(aes)))",
4217 .cra_driver_name =
4218 "authenc-hmac-sha384-rfc3686-ctr-aes-chcr",
4219 .cra_blocksize = 1,
4220 .cra_priority = CHCR_AEAD_PRIORITY,
4221 .cra_ctxsize = sizeof(struct chcr_context) +
4222 sizeof(struct chcr_aead_ctx) +
4223 sizeof(struct chcr_authenc_ctx),
4224
4225 },
4226 .ivsize = CTR_RFC3686_IV_SIZE,
4227 .maxauthsize = SHA384_DIGEST_SIZE,
4228 .setkey = chcr_authenc_setkey,
4229 .setauthsize = chcr_authenc_setauthsize,
4230 }
4231 },
4232 {
4233 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
4234 .is_registered = 0,
4235 .alg.aead = {
4236 .base = {
4237 .cra_name = "authenc(hmac(sha512),rfc3686(ctr(aes)))",
4238 .cra_driver_name =
4239 "authenc-hmac-sha512-rfc3686-ctr-aes-chcr",
4240 .cra_blocksize = 1,
4241 .cra_priority = CHCR_AEAD_PRIORITY,
4242 .cra_ctxsize = sizeof(struct chcr_context) +
4243 sizeof(struct chcr_aead_ctx) +
4244 sizeof(struct chcr_authenc_ctx),
4245
4246 },
4247 .ivsize = CTR_RFC3686_IV_SIZE,
4248 .maxauthsize = SHA512_DIGEST_SIZE,
4249 .setkey = chcr_authenc_setkey,
4250 .setauthsize = chcr_authenc_setauthsize,
4251 }
4252 },
4253 {
4254 .type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_NULL,
4255 .is_registered = 0,
4256 .alg.aead = {
4257 .base = {
4258 .cra_name = "authenc(digest_null,rfc3686(ctr(aes)))",
4259 .cra_driver_name =
4260 "authenc-digest_null-rfc3686-ctr-aes-chcr",
4261 .cra_blocksize = 1,
4262 .cra_priority = CHCR_AEAD_PRIORITY,
4263 .cra_ctxsize = sizeof(struct chcr_context) +
4264 sizeof(struct chcr_aead_ctx) +
4265 sizeof(struct chcr_authenc_ctx),
4266
4267 },
4268 .ivsize = CTR_RFC3686_IV_SIZE,
4269 .maxauthsize = 0,
4270 .setkey = chcr_aead_digest_null_setkey,
4271 .setauthsize = chcr_authenc_null_setauthsize,
4272 }
4273 },
324429d7
HS		 4274};
4275
4276/*
4277 * chcr_unregister_alg - Deregister crypto algorithms with
4278 * kernel framework.
4279 */
4280static int chcr_unregister_alg(void)
4281{
4282 int i;
4283
4284 for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
4285 switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
4286 case CRYPTO_ALG_TYPE_ABLKCIPHER:
4287 if (driver_algs[i].is_registered)
4288 crypto_unregister_alg(
4289 &driver_algs[i].alg.crypto);
4290 break;
2debd332
HJ		 4291 case CRYPTO_ALG_TYPE_AEAD:
4292 if (driver_algs[i].is_registered)
4293 crypto_unregister_aead(
4294 &driver_algs[i].alg.aead);
4295 break;
324429d7
HS		 4296 case CRYPTO_ALG_TYPE_AHASH:
4297 if (driver_algs[i].is_registered)
4298 crypto_unregister_ahash(
4299 &driver_algs[i].alg.hash);
4300 break;
4301 }
4302 driver_algs[i].is_registered = 0;
4303 }
4304 return 0;
4305}
4306
4307#define SZ_AHASH_CTX sizeof(struct chcr_context)
4308#define SZ_AHASH_H_CTX (sizeof(struct chcr_context) + sizeof(struct hmac_ctx))
4309#define SZ_AHASH_REQ_CTX sizeof(struct chcr_ahash_req_ctx)
324429d7
HS		 4310
4311/*
4312 * chcr_register_alg - Register crypto algorithms with kernel framework.
4313 */
4314static int chcr_register_alg(void)
4315{
4316 struct crypto_alg ai;
4317 struct ahash_alg *a_hash;
4318 int err = 0, i;
4319 char *name = NULL;
4320
4321 for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
4322 if (driver_algs[i].is_registered)
4323 continue;
4324 switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
4325 case CRYPTO_ALG_TYPE_ABLKCIPHER:
b8fd1f41
HJ		 4326 driver_algs[i].alg.crypto.cra_priority =
4327 CHCR_CRA_PRIORITY;
4328 driver_algs[i].alg.crypto.cra_module = THIS_MODULE;
4329 driver_algs[i].alg.crypto.cra_flags =
4330 CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC |
4331 CRYPTO_ALG_NEED_FALLBACK;
4332 driver_algs[i].alg.crypto.cra_ctxsize =
4333 sizeof(struct chcr_context) +
4334 sizeof(struct ablk_ctx);
4335 driver_algs[i].alg.crypto.cra_alignmask = 0;
4336 driver_algs[i].alg.crypto.cra_type =
4337 &crypto_ablkcipher_type;
324429d7
HS		 4338 err = crypto_register_alg(&driver_algs[i].alg.crypto);
4339 name = driver_algs[i].alg.crypto.cra_driver_name;
4340 break;
2debd332 4341 case CRYPTO_ALG_TYPE_AEAD:
2debd332 4342 driver_algs[i].alg.aead.base.cra_flags =
3f4a537a 4343 CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK;
2debd332
HJ		 4344 driver_algs[i].alg.aead.encrypt = chcr_aead_encrypt;
4345 driver_algs[i].alg.aead.decrypt = chcr_aead_decrypt;
4346 driver_algs[i].alg.aead.init = chcr_aead_cra_init;
4347 driver_algs[i].alg.aead.exit = chcr_aead_cra_exit;
4348 driver_algs[i].alg.aead.base.cra_module = THIS_MODULE;
4349 err = crypto_register_aead(&driver_algs[i].alg.aead);
4350 name = driver_algs[i].alg.aead.base.cra_driver_name;
4351 break;
324429d7
HS		 4352 case CRYPTO_ALG_TYPE_AHASH:
4353 a_hash = &driver_algs[i].alg.hash;
4354 a_hash->update = chcr_ahash_update;
4355 a_hash->final = chcr_ahash_final;
4356 a_hash->finup = chcr_ahash_finup;
4357 a_hash->digest = chcr_ahash_digest;
4358 a_hash->export = chcr_ahash_export;
4359 a_hash->import = chcr_ahash_import;
4360 a_hash->halg.statesize = SZ_AHASH_REQ_CTX;
4361 a_hash->halg.base.cra_priority = CHCR_CRA_PRIORITY;
4362 a_hash->halg.base.cra_module = THIS_MODULE;
6a38f622 4363 a_hash->halg.base.cra_flags = CRYPTO_ALG_ASYNC;
324429d7
HS		 4364 a_hash->halg.base.cra_alignmask = 0;
4365 a_hash->halg.base.cra_exit = NULL;
324429d7
HS		 4366
4367 if (driver_algs[i].type == CRYPTO_ALG_TYPE_HMAC) {
4368 a_hash->halg.base.cra_init = chcr_hmac_cra_init;
4369 a_hash->halg.base.cra_exit = chcr_hmac_cra_exit;
4370 a_hash->init = chcr_hmac_init;
4371 a_hash->setkey = chcr_ahash_setkey;
4372 a_hash->halg.base.cra_ctxsize = SZ_AHASH_H_CTX;
4373 } else {
4374 a_hash->init = chcr_sha_init;
4375 a_hash->halg.base.cra_ctxsize = SZ_AHASH_CTX;
4376 a_hash->halg.base.cra_init = chcr_sha_cra_init;
4377 }
4378 err = crypto_register_ahash(&driver_algs[i].alg.hash);
4379 ai = driver_algs[i].alg.hash.halg.base;
4380 name = ai.cra_driver_name;
4381 break;
4382 }
4383 if (err) {
4384 pr_err("chcr : %s : Algorithm registration failed\n",
4385 name);
4386 goto register_err;
4387 } else {
4388 driver_algs[i].is_registered = 1;
4389 }
4390 }
4391 return 0;
4392
4393register_err:
4394 chcr_unregister_alg();
4395 return err;
4396}
4397
4398/*
4399 * start_crypto - Register the crypto algorithms.
4400 * This should called once when the first device comesup. After this
4401 * kernel will start calling driver APIs for crypto operations.
4402 */
4403int start_crypto(void)
4404{
4405 return chcr_register_alg();
4406}
4407
4408/*
4409 * stop_crypto - Deregister all the crypto algorithms with kernel.
4410 * This should be called once when the last device goes down. After this
4411 * kernel will not call the driver API for crypto operations.
4412 */
4413int stop_crypto(void)
4414{
4415 chcr_unregister_alg();
4416 return 0;
4417}
Linux 6.x block layer and io_uring tree(s)