1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 HiSilicon Limited. */
4 #include <crypto/aes.h>
5 #include <crypto/algapi.h>
6 #include <crypto/authenc.h>
7 #include <crypto/des.h>
8 #include <crypto/hash.h>
9 #include <crypto/internal/aead.h>
10 #include <crypto/sha.h>
11 #include <crypto/skcipher.h>
12 #include <crypto/xts.h>
13 #include <linux/crypto.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/idr.h>
18 #include "sec_crypto.h"
20 #define SEC_PRIORITY 4001
21 #define SEC_XTS_MIN_KEY_SIZE (2 * AES_MIN_KEY_SIZE)
22 #define SEC_XTS_MAX_KEY_SIZE (2 * AES_MAX_KEY_SIZE)
23 #define SEC_DES3_2KEY_SIZE (2 * DES_KEY_SIZE)
24 #define SEC_DES3_3KEY_SIZE (3 * DES_KEY_SIZE)
26 /* SEC sqe(bd) bit operational relative MACRO */
27 #define SEC_DE_OFFSET 1
28 #define SEC_CIPHER_OFFSET 4
29 #define SEC_SCENE_OFFSET 3
30 #define SEC_DST_SGL_OFFSET 2
31 #define SEC_SRC_SGL_OFFSET 7
32 #define SEC_CKEY_OFFSET 9
33 #define SEC_CMODE_OFFSET 12
34 #define SEC_AKEY_OFFSET 5
35 #define SEC_AEAD_ALG_OFFSET 11
36 #define SEC_AUTH_OFFSET 6
38 #define SEC_FLAG_OFFSET 7
39 #define SEC_FLAG_MASK 0x0780
40 #define SEC_TYPE_MASK 0x0F
41 #define SEC_DONE_MASK 0x0001
43 #define SEC_TOTAL_IV_SZ (SEC_IV_SIZE * QM_Q_DEPTH)
44 #define SEC_SGL_SGE_NR 128
45 #define SEC_CIPHER_AUTH 0xfe
46 #define SEC_AUTH_CIPHER 0x1
47 #define SEC_MAX_MAC_LEN 64
48 #define SEC_MAX_AAD_LEN 65535
49 #define SEC_TOTAL_MAC_SZ (SEC_MAX_MAC_LEN * QM_Q_DEPTH)
51 #define SEC_PBUF_SZ 512
52 #define SEC_PBUF_IV_OFFSET SEC_PBUF_SZ
53 #define SEC_PBUF_MAC_OFFSET (SEC_PBUF_SZ + SEC_IV_SIZE)
54 #define SEC_PBUF_PKG (SEC_PBUF_SZ + SEC_IV_SIZE + \
56 #define SEC_PBUF_NUM (PAGE_SIZE / SEC_PBUF_PKG)
57 #define SEC_PBUF_PAGE_NUM (QM_Q_DEPTH / SEC_PBUF_NUM)
58 #define SEC_PBUF_LEFT_SZ (SEC_PBUF_PKG * (QM_Q_DEPTH - \
59 SEC_PBUF_PAGE_NUM * SEC_PBUF_NUM))
60 #define SEC_TOTAL_PBUF_SZ (PAGE_SIZE * SEC_PBUF_PAGE_NUM + \
63 #define SEC_SQE_LEN_RATE 4
64 #define SEC_SQE_CFLAG 2
65 #define SEC_SQE_AEAD_FLAG 3
66 #define SEC_SQE_DONE 0x1
68 /* Get an en/de-cipher queue cyclically to balance load over queues of TFM */
69 static inline int sec_alloc_queue_id(struct sec_ctx *ctx, struct sec_req *req)
71 if (req->c_req.encrypt)
72 return (u32)atomic_inc_return(&ctx->enc_qcyclic) %
75 return (u32)atomic_inc_return(&ctx->dec_qcyclic) % ctx->hlf_q_num +
79 static inline void sec_free_queue_id(struct sec_ctx *ctx, struct sec_req *req)
81 if (req->c_req.encrypt)
82 atomic_dec(&ctx->enc_qcyclic);
84 atomic_dec(&ctx->dec_qcyclic);
87 static int sec_alloc_req_id(struct sec_req *req, struct sec_qp_ctx *qp_ctx)
91 spin_lock_bh(&qp_ctx->req_lock);
93 req_id = idr_alloc_cyclic(&qp_ctx->req_idr, NULL,
94 0, QM_Q_DEPTH, GFP_ATOMIC);
95 spin_unlock_bh(&qp_ctx->req_lock);
96 if (unlikely(req_id < 0)) {
97 dev_err(req->ctx->dev, "alloc req id fail!\n");
101 req->qp_ctx = qp_ctx;
102 qp_ctx->req_list[req_id] = req;
106 static void sec_free_req_id(struct sec_req *req)
108 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
109 int req_id = req->req_id;
111 if (unlikely(req_id < 0 || req_id >= QM_Q_DEPTH)) {
112 dev_err(req->ctx->dev, "free request id invalid!\n");
116 qp_ctx->req_list[req_id] = NULL;
119 spin_lock_bh(&qp_ctx->req_lock);
120 idr_remove(&qp_ctx->req_idr, req_id);
121 spin_unlock_bh(&qp_ctx->req_lock);
124 static int sec_aead_verify(struct sec_req *req)
126 struct aead_request *aead_req = req->aead_req.aead_req;
127 struct crypto_aead *tfm = crypto_aead_reqtfm(aead_req);
128 size_t authsize = crypto_aead_authsize(tfm);
129 u8 *mac_out = req->aead_req.out_mac;
130 u8 *mac = mac_out + SEC_MAX_MAC_LEN;
131 struct scatterlist *sgl = aead_req->src;
134 sz = sg_pcopy_to_buffer(sgl, sg_nents(sgl), mac, authsize,
135 aead_req->cryptlen + aead_req->assoclen -
137 if (unlikely(sz != authsize || memcmp(mac_out, mac, sz))) {
138 dev_err(req->ctx->dev, "aead verify failure!\n");
145 static void sec_req_cb(struct hisi_qp *qp, void *resp)
147 struct sec_qp_ctx *qp_ctx = qp->qp_ctx;
148 struct sec_dfx *dfx = &qp_ctx->ctx->sec->debug.dfx;
149 struct sec_sqe *bd = resp;
156 type = bd->type_cipher_auth & SEC_TYPE_MASK;
157 if (unlikely(type != SEC_BD_TYPE2)) {
158 atomic64_inc(&dfx->err_bd_cnt);
159 pr_err("err bd type [%d]\n", type);
163 req = qp_ctx->req_list[le16_to_cpu(bd->type2.tag)];
164 if (unlikely(!req)) {
165 atomic64_inc(&dfx->invalid_req_cnt);
166 atomic_inc(&qp->qp_status.used);
169 req->err_type = bd->type2.error_type;
171 done = le16_to_cpu(bd->type2.done_flag) & SEC_DONE_MASK;
172 flag = (le16_to_cpu(bd->type2.done_flag) &
173 SEC_FLAG_MASK) >> SEC_FLAG_OFFSET;
174 if (unlikely(req->err_type || done != SEC_SQE_DONE ||
175 (ctx->alg_type == SEC_SKCIPHER && flag != SEC_SQE_CFLAG) ||
176 (ctx->alg_type == SEC_AEAD && flag != SEC_SQE_AEAD_FLAG))) {
177 dev_err_ratelimited(ctx->dev,
178 "err_type[%d],done[%d],flag[%d]\n",
179 req->err_type, done, flag);
181 atomic64_inc(&dfx->done_flag_cnt);
184 if (ctx->alg_type == SEC_AEAD && !req->c_req.encrypt)
185 err = sec_aead_verify(req);
187 atomic64_inc(&dfx->recv_cnt);
189 ctx->req_op->buf_unmap(ctx, req);
191 ctx->req_op->callback(ctx, req, err);
194 static int sec_bd_send(struct sec_ctx *ctx, struct sec_req *req)
196 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
199 if (ctx->fake_req_limit <=
200 atomic_read(&qp_ctx->qp->qp_status.used) &&
201 !(req->flag & CRYPTO_TFM_REQ_MAY_BACKLOG))
204 spin_lock_bh(&qp_ctx->req_lock);
205 ret = hisi_qp_send(qp_ctx->qp, &req->sec_sqe);
207 if (ctx->fake_req_limit <=
208 atomic_read(&qp_ctx->qp->qp_status.used) && !ret) {
209 list_add_tail(&req->backlog_head, &qp_ctx->backlog);
210 atomic64_inc(&ctx->sec->debug.dfx.send_cnt);
211 atomic64_inc(&ctx->sec->debug.dfx.send_busy_cnt);
212 spin_unlock_bh(&qp_ctx->req_lock);
215 spin_unlock_bh(&qp_ctx->req_lock);
217 if (unlikely(ret == -EBUSY))
222 atomic64_inc(&ctx->sec->debug.dfx.send_cnt);
228 /* Get DMA memory resources */
229 static int sec_alloc_civ_resource(struct device *dev, struct sec_alg_res *res)
233 res->c_ivin = dma_alloc_coherent(dev, SEC_TOTAL_IV_SZ,
234 &res->c_ivin_dma, GFP_KERNEL);
238 for (i = 1; i < QM_Q_DEPTH; i++) {
239 res[i].c_ivin_dma = res->c_ivin_dma + i * SEC_IV_SIZE;
240 res[i].c_ivin = res->c_ivin + i * SEC_IV_SIZE;
246 static void sec_free_civ_resource(struct device *dev, struct sec_alg_res *res)
249 dma_free_coherent(dev, SEC_TOTAL_IV_SZ,
250 res->c_ivin, res->c_ivin_dma);
253 static int sec_alloc_mac_resource(struct device *dev, struct sec_alg_res *res)
257 res->out_mac = dma_alloc_coherent(dev, SEC_TOTAL_MAC_SZ << 1,
258 &res->out_mac_dma, GFP_KERNEL);
262 for (i = 1; i < QM_Q_DEPTH; i++) {
263 res[i].out_mac_dma = res->out_mac_dma +
264 i * (SEC_MAX_MAC_LEN << 1);
265 res[i].out_mac = res->out_mac + i * (SEC_MAX_MAC_LEN << 1);
271 static void sec_free_mac_resource(struct device *dev, struct sec_alg_res *res)
274 dma_free_coherent(dev, SEC_TOTAL_MAC_SZ << 1,
275 res->out_mac, res->out_mac_dma);
278 static void sec_free_pbuf_resource(struct device *dev, struct sec_alg_res *res)
281 dma_free_coherent(dev, SEC_TOTAL_PBUF_SZ,
282 res->pbuf, res->pbuf_dma);
286 * To improve performance, pbuffer is used for
287 * small packets (< 512Bytes) as IOMMU translation using.
289 static int sec_alloc_pbuf_resource(struct device *dev, struct sec_alg_res *res)
291 int pbuf_page_offset;
294 res->pbuf = dma_alloc_coherent(dev, SEC_TOTAL_PBUF_SZ,
295 &res->pbuf_dma, GFP_KERNEL);
300 * SEC_PBUF_PKG contains data pbuf, iv and
301 * out_mac : <SEC_PBUF|SEC_IV|SEC_MAC>
302 * Every PAGE contains six SEC_PBUF_PKG
303 * The sec_qp_ctx contains QM_Q_DEPTH numbers of SEC_PBUF_PKG
304 * So we need SEC_PBUF_PAGE_NUM numbers of PAGE
305 * for the SEC_TOTAL_PBUF_SZ
307 for (i = 0; i <= SEC_PBUF_PAGE_NUM; i++) {
308 pbuf_page_offset = PAGE_SIZE * i;
309 for (j = 0; j < SEC_PBUF_NUM; j++) {
310 k = i * SEC_PBUF_NUM + j;
313 res[k].pbuf = res->pbuf +
314 j * SEC_PBUF_PKG + pbuf_page_offset;
315 res[k].pbuf_dma = res->pbuf_dma +
316 j * SEC_PBUF_PKG + pbuf_page_offset;
322 static int sec_alg_resource_alloc(struct sec_ctx *ctx,
323 struct sec_qp_ctx *qp_ctx)
325 struct sec_alg_res *res = qp_ctx->res;
326 struct device *dev = ctx->dev;
329 ret = sec_alloc_civ_resource(dev, res);
333 if (ctx->alg_type == SEC_AEAD) {
334 ret = sec_alloc_mac_resource(dev, res);
338 if (ctx->pbuf_supported) {
339 ret = sec_alloc_pbuf_resource(dev, res);
341 dev_err(dev, "fail to alloc pbuf dma resource!\n");
342 goto alloc_pbuf_fail;
348 if (ctx->alg_type == SEC_AEAD)
349 sec_free_mac_resource(dev, qp_ctx->res);
351 sec_free_civ_resource(dev, res);
356 static void sec_alg_resource_free(struct sec_ctx *ctx,
357 struct sec_qp_ctx *qp_ctx)
359 struct device *dev = ctx->dev;
361 sec_free_civ_resource(dev, qp_ctx->res);
363 if (ctx->pbuf_supported)
364 sec_free_pbuf_resource(dev, qp_ctx->res);
365 if (ctx->alg_type == SEC_AEAD)
366 sec_free_mac_resource(dev, qp_ctx->res);
369 static int sec_create_qp_ctx(struct hisi_qm *qm, struct sec_ctx *ctx,
370 int qp_ctx_id, int alg_type)
372 struct device *dev = ctx->dev;
373 struct sec_qp_ctx *qp_ctx;
377 qp_ctx = &ctx->qp_ctx[qp_ctx_id];
378 qp = ctx->qps[qp_ctx_id];
381 qp->req_cb = sec_req_cb;
385 spin_lock_init(&qp_ctx->req_lock);
386 idr_init(&qp_ctx->req_idr);
387 INIT_LIST_HEAD(&qp_ctx->backlog);
389 qp_ctx->c_in_pool = hisi_acc_create_sgl_pool(dev, QM_Q_DEPTH,
391 if (IS_ERR(qp_ctx->c_in_pool)) {
392 dev_err(dev, "fail to create sgl pool for input!\n");
393 goto err_destroy_idr;
396 qp_ctx->c_out_pool = hisi_acc_create_sgl_pool(dev, QM_Q_DEPTH,
398 if (IS_ERR(qp_ctx->c_out_pool)) {
399 dev_err(dev, "fail to create sgl pool for output!\n");
400 goto err_free_c_in_pool;
403 ret = sec_alg_resource_alloc(ctx, qp_ctx);
405 goto err_free_c_out_pool;
407 ret = hisi_qm_start_qp(qp, 0);
414 sec_alg_resource_free(ctx, qp_ctx);
416 hisi_acc_free_sgl_pool(dev, qp_ctx->c_out_pool);
418 hisi_acc_free_sgl_pool(dev, qp_ctx->c_in_pool);
420 idr_destroy(&qp_ctx->req_idr);
425 static void sec_release_qp_ctx(struct sec_ctx *ctx,
426 struct sec_qp_ctx *qp_ctx)
428 struct device *dev = ctx->dev;
430 hisi_qm_stop_qp(qp_ctx->qp);
431 sec_alg_resource_free(ctx, qp_ctx);
433 hisi_acc_free_sgl_pool(dev, qp_ctx->c_out_pool);
434 hisi_acc_free_sgl_pool(dev, qp_ctx->c_in_pool);
436 idr_destroy(&qp_ctx->req_idr);
439 static int sec_ctx_base_init(struct sec_ctx *ctx)
444 ctx->qps = sec_create_qps();
446 pr_err("Can not create sec qps!\n");
450 sec = container_of(ctx->qps[0]->qm, struct sec_dev, qm);
452 ctx->dev = &sec->qm.pdev->dev;
453 ctx->hlf_q_num = sec->ctx_q_num >> 1;
455 ctx->pbuf_supported = ctx->sec->iommu_used;
457 /* Half of queue depth is taken as fake requests limit in the queue. */
458 ctx->fake_req_limit = QM_Q_DEPTH >> 1;
459 ctx->qp_ctx = kcalloc(sec->ctx_q_num, sizeof(struct sec_qp_ctx),
463 goto err_destroy_qps;
466 for (i = 0; i < sec->ctx_q_num; i++) {
467 ret = sec_create_qp_ctx(&sec->qm, ctx, i, 0);
469 goto err_sec_release_qp_ctx;
474 err_sec_release_qp_ctx:
475 for (i = i - 1; i >= 0; i--)
476 sec_release_qp_ctx(ctx, &ctx->qp_ctx[i]);
479 sec_destroy_qps(ctx->qps, sec->ctx_q_num);
483 static void sec_ctx_base_uninit(struct sec_ctx *ctx)
487 for (i = 0; i < ctx->sec->ctx_q_num; i++)
488 sec_release_qp_ctx(ctx, &ctx->qp_ctx[i]);
490 sec_destroy_qps(ctx->qps, ctx->sec->ctx_q_num);
494 static int sec_cipher_init(struct sec_ctx *ctx)
496 struct sec_cipher_ctx *c_ctx = &ctx->c_ctx;
498 c_ctx->c_key = dma_alloc_coherent(ctx->dev, SEC_MAX_KEY_SIZE,
499 &c_ctx->c_key_dma, GFP_KERNEL);
506 static void sec_cipher_uninit(struct sec_ctx *ctx)
508 struct sec_cipher_ctx *c_ctx = &ctx->c_ctx;
510 memzero_explicit(c_ctx->c_key, SEC_MAX_KEY_SIZE);
511 dma_free_coherent(ctx->dev, SEC_MAX_KEY_SIZE,
512 c_ctx->c_key, c_ctx->c_key_dma);
515 static int sec_auth_init(struct sec_ctx *ctx)
517 struct sec_auth_ctx *a_ctx = &ctx->a_ctx;
519 a_ctx->a_key = dma_alloc_coherent(ctx->dev, SEC_MAX_AKEY_SIZE,
520 &a_ctx->a_key_dma, GFP_KERNEL);
527 static void sec_auth_uninit(struct sec_ctx *ctx)
529 struct sec_auth_ctx *a_ctx = &ctx->a_ctx;
531 memzero_explicit(a_ctx->a_key, SEC_MAX_AKEY_SIZE);
532 dma_free_coherent(ctx->dev, SEC_MAX_AKEY_SIZE,
533 a_ctx->a_key, a_ctx->a_key_dma);
536 static int sec_skcipher_init(struct crypto_skcipher *tfm)
538 struct sec_ctx *ctx = crypto_skcipher_ctx(tfm);
541 ctx->alg_type = SEC_SKCIPHER;
542 crypto_skcipher_set_reqsize(tfm, sizeof(struct sec_req));
543 ctx->c_ctx.ivsize = crypto_skcipher_ivsize(tfm);
544 if (ctx->c_ctx.ivsize > SEC_IV_SIZE) {
545 pr_err("get error skcipher iv size!\n");
549 ret = sec_ctx_base_init(ctx);
553 ret = sec_cipher_init(ctx);
555 goto err_cipher_init;
559 sec_ctx_base_uninit(ctx);
564 static void sec_skcipher_uninit(struct crypto_skcipher *tfm)
566 struct sec_ctx *ctx = crypto_skcipher_ctx(tfm);
568 sec_cipher_uninit(ctx);
569 sec_ctx_base_uninit(ctx);
572 static int sec_skcipher_3des_setkey(struct sec_cipher_ctx *c_ctx,
574 const enum sec_cmode c_mode)
577 case SEC_DES3_2KEY_SIZE:
578 c_ctx->c_key_len = SEC_CKEY_3DES_2KEY;
580 case SEC_DES3_3KEY_SIZE:
581 c_ctx->c_key_len = SEC_CKEY_3DES_3KEY;
590 static int sec_skcipher_aes_sm4_setkey(struct sec_cipher_ctx *c_ctx,
592 const enum sec_cmode c_mode)
594 if (c_mode == SEC_CMODE_XTS) {
596 case SEC_XTS_MIN_KEY_SIZE:
597 c_ctx->c_key_len = SEC_CKEY_128BIT;
599 case SEC_XTS_MAX_KEY_SIZE:
600 c_ctx->c_key_len = SEC_CKEY_256BIT;
603 pr_err("hisi_sec2: xts mode key error!\n");
608 case AES_KEYSIZE_128:
609 c_ctx->c_key_len = SEC_CKEY_128BIT;
611 case AES_KEYSIZE_192:
612 c_ctx->c_key_len = SEC_CKEY_192BIT;
614 case AES_KEYSIZE_256:
615 c_ctx->c_key_len = SEC_CKEY_256BIT;
618 pr_err("hisi_sec2: aes key error!\n");
626 static int sec_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
627 const u32 keylen, const enum sec_calg c_alg,
628 const enum sec_cmode c_mode)
630 struct sec_ctx *ctx = crypto_skcipher_ctx(tfm);
631 struct sec_cipher_ctx *c_ctx = &ctx->c_ctx;
632 struct device *dev = ctx->dev;
635 if (c_mode == SEC_CMODE_XTS) {
636 ret = xts_verify_key(tfm, key, keylen);
638 dev_err(dev, "xts mode key err!\n");
643 c_ctx->c_alg = c_alg;
644 c_ctx->c_mode = c_mode;
648 ret = sec_skcipher_3des_setkey(c_ctx, keylen, c_mode);
652 ret = sec_skcipher_aes_sm4_setkey(c_ctx, keylen, c_mode);
659 dev_err(dev, "set sec key err!\n");
663 memcpy(c_ctx->c_key, key, keylen);
668 #define GEN_SEC_SETKEY_FUNC(name, c_alg, c_mode) \
669 static int sec_setkey_##name(struct crypto_skcipher *tfm, const u8 *key,\
672 return sec_skcipher_setkey(tfm, key, keylen, c_alg, c_mode); \
675 GEN_SEC_SETKEY_FUNC(aes_ecb, SEC_CALG_AES, SEC_CMODE_ECB)
676 GEN_SEC_SETKEY_FUNC(aes_cbc, SEC_CALG_AES, SEC_CMODE_CBC)
677 GEN_SEC_SETKEY_FUNC(aes_xts, SEC_CALG_AES, SEC_CMODE_XTS)
679 GEN_SEC_SETKEY_FUNC(3des_ecb, SEC_CALG_3DES, SEC_CMODE_ECB)
680 GEN_SEC_SETKEY_FUNC(3des_cbc, SEC_CALG_3DES, SEC_CMODE_CBC)
682 GEN_SEC_SETKEY_FUNC(sm4_xts, SEC_CALG_SM4, SEC_CMODE_XTS)
683 GEN_SEC_SETKEY_FUNC(sm4_cbc, SEC_CALG_SM4, SEC_CMODE_CBC)
685 static int sec_cipher_pbuf_map(struct sec_ctx *ctx, struct sec_req *req,
686 struct scatterlist *src)
688 struct aead_request *aead_req = req->aead_req.aead_req;
689 struct sec_cipher_req *c_req = &req->c_req;
690 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
691 struct device *dev = ctx->dev;
692 int copy_size, pbuf_length;
693 int req_id = req->req_id;
695 if (ctx->alg_type == SEC_AEAD)
696 copy_size = aead_req->cryptlen + aead_req->assoclen;
698 copy_size = c_req->c_len;
700 pbuf_length = sg_copy_to_buffer(src, sg_nents(src),
701 qp_ctx->res[req_id].pbuf,
703 if (unlikely(pbuf_length != copy_size)) {
704 dev_err(dev, "copy src data to pbuf error!\n");
708 c_req->c_in_dma = qp_ctx->res[req_id].pbuf_dma;
710 if (!c_req->c_in_dma) {
711 dev_err(dev, "fail to set pbuffer address!\n");
715 c_req->c_out_dma = c_req->c_in_dma;
720 static void sec_cipher_pbuf_unmap(struct sec_ctx *ctx, struct sec_req *req,
721 struct scatterlist *dst)
723 struct aead_request *aead_req = req->aead_req.aead_req;
724 struct sec_cipher_req *c_req = &req->c_req;
725 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
726 struct device *dev = ctx->dev;
727 int copy_size, pbuf_length;
728 int req_id = req->req_id;
730 if (ctx->alg_type == SEC_AEAD)
731 copy_size = c_req->c_len + aead_req->assoclen;
733 copy_size = c_req->c_len;
735 pbuf_length = sg_copy_from_buffer(dst, sg_nents(dst),
736 qp_ctx->res[req_id].pbuf,
738 if (unlikely(pbuf_length != copy_size))
739 dev_err(dev, "copy pbuf data to dst error!\n");
743 static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
744 struct scatterlist *src, struct scatterlist *dst)
746 struct sec_cipher_req *c_req = &req->c_req;
747 struct sec_aead_req *a_req = &req->aead_req;
748 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
749 struct sec_alg_res *res = &qp_ctx->res[req->req_id];
750 struct device *dev = ctx->dev;
754 ret = sec_cipher_pbuf_map(ctx, req, src);
755 c_req->c_ivin = res->pbuf + SEC_PBUF_IV_OFFSET;
756 c_req->c_ivin_dma = res->pbuf_dma + SEC_PBUF_IV_OFFSET;
757 if (ctx->alg_type == SEC_AEAD) {
758 a_req->out_mac = res->pbuf + SEC_PBUF_MAC_OFFSET;
759 a_req->out_mac_dma = res->pbuf_dma +
765 c_req->c_ivin = res->c_ivin;
766 c_req->c_ivin_dma = res->c_ivin_dma;
767 if (ctx->alg_type == SEC_AEAD) {
768 a_req->out_mac = res->out_mac;
769 a_req->out_mac_dma = res->out_mac_dma;
772 c_req->c_in = hisi_acc_sg_buf_map_to_hw_sgl(dev, src,
777 if (IS_ERR(c_req->c_in)) {
778 dev_err(dev, "fail to dma map input sgl buffers!\n");
779 return PTR_ERR(c_req->c_in);
783 c_req->c_out = c_req->c_in;
784 c_req->c_out_dma = c_req->c_in_dma;
786 c_req->c_out = hisi_acc_sg_buf_map_to_hw_sgl(dev, dst,
791 if (IS_ERR(c_req->c_out)) {
792 dev_err(dev, "fail to dma map output sgl buffers!\n");
793 hisi_acc_sg_buf_unmap(dev, src, c_req->c_in);
794 return PTR_ERR(c_req->c_out);
801 static void sec_cipher_unmap(struct sec_ctx *ctx, struct sec_req *req,
802 struct scatterlist *src, struct scatterlist *dst)
804 struct sec_cipher_req *c_req = &req->c_req;
805 struct device *dev = ctx->dev;
808 sec_cipher_pbuf_unmap(ctx, req, dst);
811 hisi_acc_sg_buf_unmap(dev, src, c_req->c_in);
813 hisi_acc_sg_buf_unmap(dev, dst, c_req->c_out);
817 static int sec_skcipher_sgl_map(struct sec_ctx *ctx, struct sec_req *req)
819 struct skcipher_request *sq = req->c_req.sk_req;
821 return sec_cipher_map(ctx, req, sq->src, sq->dst);
824 static void sec_skcipher_sgl_unmap(struct sec_ctx *ctx, struct sec_req *req)
826 struct skcipher_request *sq = req->c_req.sk_req;
828 sec_cipher_unmap(ctx, req, sq->src, sq->dst);
831 static int sec_aead_aes_set_key(struct sec_cipher_ctx *c_ctx,
832 struct crypto_authenc_keys *keys)
834 switch (keys->enckeylen) {
835 case AES_KEYSIZE_128:
836 c_ctx->c_key_len = SEC_CKEY_128BIT;
838 case AES_KEYSIZE_192:
839 c_ctx->c_key_len = SEC_CKEY_192BIT;
841 case AES_KEYSIZE_256:
842 c_ctx->c_key_len = SEC_CKEY_256BIT;
845 pr_err("hisi_sec2: aead aes key error!\n");
848 memcpy(c_ctx->c_key, keys->enckey, keys->enckeylen);
853 static int sec_aead_auth_set_key(struct sec_auth_ctx *ctx,
854 struct crypto_authenc_keys *keys)
856 struct crypto_shash *hash_tfm = ctx->hash_tfm;
859 if (!keys->authkeylen) {
860 pr_err("hisi_sec2: aead auth key error!\n");
864 blocksize = crypto_shash_blocksize(hash_tfm);
865 if (keys->authkeylen > blocksize) {
866 ret = crypto_shash_tfm_digest(hash_tfm, keys->authkey,
867 keys->authkeylen, ctx->a_key);
869 pr_err("hisi_sec2: aead auth digest error!\n");
872 ctx->a_key_len = blocksize;
874 memcpy(ctx->a_key, keys->authkey, keys->authkeylen);
875 ctx->a_key_len = keys->authkeylen;
881 static int sec_aead_setkey(struct crypto_aead *tfm, const u8 *key,
882 const u32 keylen, const enum sec_hash_alg a_alg,
883 const enum sec_calg c_alg,
884 const enum sec_mac_len mac_len,
885 const enum sec_cmode c_mode)
887 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
888 struct sec_cipher_ctx *c_ctx = &ctx->c_ctx;
889 struct device *dev = ctx->dev;
890 struct crypto_authenc_keys keys;
893 ctx->a_ctx.a_alg = a_alg;
894 ctx->c_ctx.c_alg = c_alg;
895 ctx->a_ctx.mac_len = mac_len;
896 c_ctx->c_mode = c_mode;
898 if (crypto_authenc_extractkeys(&keys, key, keylen))
901 ret = sec_aead_aes_set_key(c_ctx, &keys);
903 dev_err(dev, "set sec cipher key err!\n");
907 ret = sec_aead_auth_set_key(&ctx->a_ctx, &keys);
909 dev_err(dev, "set sec auth key err!\n");
915 memzero_explicit(&keys, sizeof(struct crypto_authenc_keys));
921 #define GEN_SEC_AEAD_SETKEY_FUNC(name, aalg, calg, maclen, cmode) \
922 static int sec_setkey_##name(struct crypto_aead *tfm, const u8 *key, \
925 return sec_aead_setkey(tfm, key, keylen, aalg, calg, maclen, cmode);\
928 GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha1, SEC_A_HMAC_SHA1,
929 SEC_CALG_AES, SEC_HMAC_SHA1_MAC, SEC_CMODE_CBC)
930 GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha256, SEC_A_HMAC_SHA256,
931 SEC_CALG_AES, SEC_HMAC_SHA256_MAC, SEC_CMODE_CBC)
932 GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha512, SEC_A_HMAC_SHA512,
933 SEC_CALG_AES, SEC_HMAC_SHA512_MAC, SEC_CMODE_CBC)
935 static int sec_aead_sgl_map(struct sec_ctx *ctx, struct sec_req *req)
937 struct aead_request *aq = req->aead_req.aead_req;
939 return sec_cipher_map(ctx, req, aq->src, aq->dst);
942 static void sec_aead_sgl_unmap(struct sec_ctx *ctx, struct sec_req *req)
944 struct aead_request *aq = req->aead_req.aead_req;
946 sec_cipher_unmap(ctx, req, aq->src, aq->dst);
949 static int sec_request_transfer(struct sec_ctx *ctx, struct sec_req *req)
953 ret = ctx->req_op->buf_map(ctx, req);
957 ctx->req_op->do_transfer(ctx, req);
959 ret = ctx->req_op->bd_fill(ctx, req);
966 ctx->req_op->buf_unmap(ctx, req);
971 static void sec_request_untransfer(struct sec_ctx *ctx, struct sec_req *req)
973 ctx->req_op->buf_unmap(ctx, req);
976 static void sec_skcipher_copy_iv(struct sec_ctx *ctx, struct sec_req *req)
978 struct skcipher_request *sk_req = req->c_req.sk_req;
979 struct sec_cipher_req *c_req = &req->c_req;
981 memcpy(c_req->c_ivin, sk_req->iv, ctx->c_ctx.ivsize);
984 static int sec_skcipher_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
986 struct sec_cipher_ctx *c_ctx = &ctx->c_ctx;
987 struct sec_cipher_req *c_req = &req->c_req;
988 struct sec_sqe *sec_sqe = &req->sec_sqe;
989 u8 scene, sa_type, da_type;
993 memset(sec_sqe, 0, sizeof(struct sec_sqe));
995 sec_sqe->type2.c_key_addr = cpu_to_le64(c_ctx->c_key_dma);
996 sec_sqe->type2.c_ivin_addr = cpu_to_le64(c_req->c_ivin_dma);
997 sec_sqe->type2.data_src_addr = cpu_to_le64(c_req->c_in_dma);
998 sec_sqe->type2.data_dst_addr = cpu_to_le64(c_req->c_out_dma);
1000 sec_sqe->type2.icvw_kmode |= cpu_to_le16(((u16)c_ctx->c_mode) <<
1002 sec_sqe->type2.c_alg = c_ctx->c_alg;
1003 sec_sqe->type2.icvw_kmode |= cpu_to_le16(((u16)c_ctx->c_key_len) <<
1006 bd_type = SEC_BD_TYPE2;
1008 cipher = SEC_CIPHER_ENC << SEC_CIPHER_OFFSET;
1010 cipher = SEC_CIPHER_DEC << SEC_CIPHER_OFFSET;
1011 sec_sqe->type_cipher_auth = bd_type | cipher;
1014 sa_type = SEC_PBUF << SEC_SRC_SGL_OFFSET;
1016 sa_type = SEC_SGL << SEC_SRC_SGL_OFFSET;
1017 scene = SEC_COMM_SCENE << SEC_SCENE_OFFSET;
1018 if (c_req->c_in_dma != c_req->c_out_dma)
1019 de = 0x1 << SEC_DE_OFFSET;
1021 sec_sqe->sds_sa_type = (de | scene | sa_type);
1023 /* Just set DST address type */
1025 da_type = SEC_PBUF << SEC_DST_SGL_OFFSET;
1027 da_type = SEC_SGL << SEC_DST_SGL_OFFSET;
1028 sec_sqe->sdm_addr_type |= da_type;
1030 sec_sqe->type2.clen_ivhlen |= cpu_to_le32(c_req->c_len);
1031 sec_sqe->type2.tag = cpu_to_le16((u16)req->req_id);
1036 static void sec_update_iv(struct sec_req *req, enum sec_alg_type alg_type)
1038 struct aead_request *aead_req = req->aead_req.aead_req;
1039 struct skcipher_request *sk_req = req->c_req.sk_req;
1040 u32 iv_size = req->ctx->c_ctx.ivsize;
1041 struct scatterlist *sgl;
1042 unsigned int cryptlen;
1046 if (req->c_req.encrypt)
1047 sgl = alg_type == SEC_SKCIPHER ? sk_req->dst : aead_req->dst;
1049 sgl = alg_type == SEC_SKCIPHER ? sk_req->src : aead_req->src;
1051 if (alg_type == SEC_SKCIPHER) {
1053 cryptlen = sk_req->cryptlen;
1056 cryptlen = aead_req->cryptlen;
1059 sz = sg_pcopy_to_buffer(sgl, sg_nents(sgl), iv, iv_size,
1060 cryptlen - iv_size);
1061 if (unlikely(sz != iv_size))
1062 dev_err(req->ctx->dev, "copy output iv error!\n");
1065 static struct sec_req *sec_back_req_clear(struct sec_ctx *ctx,
1066 struct sec_qp_ctx *qp_ctx)
1068 struct sec_req *backlog_req = NULL;
1070 spin_lock_bh(&qp_ctx->req_lock);
1071 if (ctx->fake_req_limit >=
1072 atomic_read(&qp_ctx->qp->qp_status.used) &&
1073 !list_empty(&qp_ctx->backlog)) {
1074 backlog_req = list_first_entry(&qp_ctx->backlog,
1075 typeof(*backlog_req), backlog_head);
1076 list_del(&backlog_req->backlog_head);
1078 spin_unlock_bh(&qp_ctx->req_lock);
1083 static void sec_skcipher_callback(struct sec_ctx *ctx, struct sec_req *req,
1086 struct skcipher_request *sk_req = req->c_req.sk_req;
1087 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
1088 struct skcipher_request *backlog_sk_req;
1089 struct sec_req *backlog_req;
1091 sec_free_req_id(req);
1093 /* IV output at encrypto of CBC mode */
1094 if (!err && ctx->c_ctx.c_mode == SEC_CMODE_CBC && req->c_req.encrypt)
1095 sec_update_iv(req, SEC_SKCIPHER);
1098 backlog_req = sec_back_req_clear(ctx, qp_ctx);
1102 backlog_sk_req = backlog_req->c_req.sk_req;
1103 backlog_sk_req->base.complete(&backlog_sk_req->base,
1105 atomic64_inc(&ctx->sec->debug.dfx.recv_busy_cnt);
1109 sk_req->base.complete(&sk_req->base, err);
1112 static void sec_aead_copy_iv(struct sec_ctx *ctx, struct sec_req *req)
1114 struct aead_request *aead_req = req->aead_req.aead_req;
1115 struct sec_cipher_req *c_req = &req->c_req;
1117 memcpy(c_req->c_ivin, aead_req->iv, ctx->c_ctx.ivsize);
1120 static void sec_auth_bd_fill_ex(struct sec_auth_ctx *ctx, int dir,
1121 struct sec_req *req, struct sec_sqe *sec_sqe)
1123 struct sec_aead_req *a_req = &req->aead_req;
1124 struct sec_cipher_req *c_req = &req->c_req;
1125 struct aead_request *aq = a_req->aead_req;
1127 sec_sqe->type2.a_key_addr = cpu_to_le64(ctx->a_key_dma);
1129 sec_sqe->type2.mac_key_alg =
1130 cpu_to_le32(ctx->mac_len / SEC_SQE_LEN_RATE);
1132 sec_sqe->type2.mac_key_alg |=
1133 cpu_to_le32((u32)((ctx->a_key_len) /
1134 SEC_SQE_LEN_RATE) << SEC_AKEY_OFFSET);
1136 sec_sqe->type2.mac_key_alg |=
1137 cpu_to_le32((u32)(ctx->a_alg) << SEC_AEAD_ALG_OFFSET);
1139 sec_sqe->type_cipher_auth |= SEC_AUTH_TYPE1 << SEC_AUTH_OFFSET;
1142 sec_sqe->sds_sa_type &= SEC_CIPHER_AUTH;
1144 sec_sqe->sds_sa_type |= SEC_AUTH_CIPHER;
1146 sec_sqe->type2.alen_ivllen = cpu_to_le32(c_req->c_len + aq->assoclen);
1148 sec_sqe->type2.cipher_src_offset = cpu_to_le16((u16)aq->assoclen);
1150 sec_sqe->type2.mac_addr = cpu_to_le64(a_req->out_mac_dma);
1153 static int sec_aead_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
1155 struct sec_auth_ctx *auth_ctx = &ctx->a_ctx;
1156 struct sec_sqe *sec_sqe = &req->sec_sqe;
1159 ret = sec_skcipher_bd_fill(ctx, req);
1160 if (unlikely(ret)) {
1161 dev_err(ctx->dev, "skcipher bd fill is error!\n");
1165 sec_auth_bd_fill_ex(auth_ctx, req->c_req.encrypt, req, sec_sqe);
1170 static void sec_aead_callback(struct sec_ctx *c, struct sec_req *req, int err)
1172 struct aead_request *a_req = req->aead_req.aead_req;
1173 struct crypto_aead *tfm = crypto_aead_reqtfm(a_req);
1174 struct sec_aead_req *aead_req = &req->aead_req;
1175 struct sec_cipher_req *c_req = &req->c_req;
1176 size_t authsize = crypto_aead_authsize(tfm);
1177 struct sec_qp_ctx *qp_ctx = req->qp_ctx;
1178 struct aead_request *backlog_aead_req;
1179 struct sec_req *backlog_req;
1182 if (!err && c->c_ctx.c_mode == SEC_CMODE_CBC && c_req->encrypt)
1183 sec_update_iv(req, SEC_AEAD);
1185 /* Copy output mac */
1186 if (!err && c_req->encrypt) {
1187 struct scatterlist *sgl = a_req->dst;
1189 sz = sg_pcopy_from_buffer(sgl, sg_nents(sgl),
1191 authsize, a_req->cryptlen +
1194 if (unlikely(sz != authsize)) {
1195 dev_err(c->dev, "copy out mac err!\n");
1200 sec_free_req_id(req);
1203 backlog_req = sec_back_req_clear(c, qp_ctx);
1207 backlog_aead_req = backlog_req->aead_req.aead_req;
1208 backlog_aead_req->base.complete(&backlog_aead_req->base,
1210 atomic64_inc(&c->sec->debug.dfx.recv_busy_cnt);
1213 a_req->base.complete(&a_req->base, err);
1216 static void sec_request_uninit(struct sec_ctx *ctx, struct sec_req *req)
1218 sec_free_req_id(req);
1219 sec_free_queue_id(ctx, req);
1222 static int sec_request_init(struct sec_ctx *ctx, struct sec_req *req)
1224 struct sec_qp_ctx *qp_ctx;
1227 /* To load balance */
1228 queue_id = sec_alloc_queue_id(ctx, req);
1229 qp_ctx = &ctx->qp_ctx[queue_id];
1231 req->req_id = sec_alloc_req_id(req, qp_ctx);
1232 if (unlikely(req->req_id < 0)) {
1233 sec_free_queue_id(ctx, req);
1240 static int sec_process(struct sec_ctx *ctx, struct sec_req *req)
1242 struct sec_cipher_req *c_req = &req->c_req;
1245 ret = sec_request_init(ctx, req);
1249 ret = sec_request_transfer(ctx, req);
1251 goto err_uninit_req;
1253 /* Output IV as decrypto */
1254 if (ctx->c_ctx.c_mode == SEC_CMODE_CBC && !req->c_req.encrypt)
1255 sec_update_iv(req, ctx->alg_type);
1257 ret = ctx->req_op->bd_send(ctx, req);
1258 if (unlikely((ret != -EBUSY && ret != -EINPROGRESS) ||
1259 (ret == -EBUSY && !(req->flag & CRYPTO_TFM_REQ_MAY_BACKLOG)))) {
1260 dev_err_ratelimited(ctx->dev, "send sec request failed!\n");
1267 /* As failing, restore the IV from user */
1268 if (ctx->c_ctx.c_mode == SEC_CMODE_CBC && !req->c_req.encrypt) {
1269 if (ctx->alg_type == SEC_SKCIPHER)
1270 memcpy(req->c_req.sk_req->iv, c_req->c_ivin,
1273 memcpy(req->aead_req.aead_req->iv, c_req->c_ivin,
1277 sec_request_untransfer(ctx, req);
1279 sec_request_uninit(ctx, req);
1284 static const struct sec_req_op sec_skcipher_req_ops = {
1285 .buf_map = sec_skcipher_sgl_map,
1286 .buf_unmap = sec_skcipher_sgl_unmap,
1287 .do_transfer = sec_skcipher_copy_iv,
1288 .bd_fill = sec_skcipher_bd_fill,
1289 .bd_send = sec_bd_send,
1290 .callback = sec_skcipher_callback,
1291 .process = sec_process,
1294 static const struct sec_req_op sec_aead_req_ops = {
1295 .buf_map = sec_aead_sgl_map,
1296 .buf_unmap = sec_aead_sgl_unmap,
1297 .do_transfer = sec_aead_copy_iv,
1298 .bd_fill = sec_aead_bd_fill,
1299 .bd_send = sec_bd_send,
1300 .callback = sec_aead_callback,
1301 .process = sec_process,
1304 static int sec_skcipher_ctx_init(struct crypto_skcipher *tfm)
1306 struct sec_ctx *ctx = crypto_skcipher_ctx(tfm);
1308 ctx->req_op = &sec_skcipher_req_ops;
1310 return sec_skcipher_init(tfm);
1313 static void sec_skcipher_ctx_exit(struct crypto_skcipher *tfm)
1315 sec_skcipher_uninit(tfm);
1318 static int sec_aead_init(struct crypto_aead *tfm)
1320 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
1323 crypto_aead_set_reqsize(tfm, sizeof(struct sec_req));
1324 ctx->alg_type = SEC_AEAD;
1325 ctx->c_ctx.ivsize = crypto_aead_ivsize(tfm);
1326 if (ctx->c_ctx.ivsize > SEC_IV_SIZE) {
1327 dev_err(ctx->dev, "get error aead iv size!\n");
1331 ctx->req_op = &sec_aead_req_ops;
1332 ret = sec_ctx_base_init(ctx);
1336 ret = sec_auth_init(ctx);
1340 ret = sec_cipher_init(ctx);
1342 goto err_cipher_init;
1347 sec_auth_uninit(ctx);
1349 sec_ctx_base_uninit(ctx);
1354 static void sec_aead_exit(struct crypto_aead *tfm)
1356 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
1358 sec_cipher_uninit(ctx);
1359 sec_auth_uninit(ctx);
1360 sec_ctx_base_uninit(ctx);
1363 static int sec_aead_ctx_init(struct crypto_aead *tfm, const char *hash_name)
1365 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
1366 struct sec_auth_ctx *auth_ctx = &ctx->a_ctx;
1369 ret = sec_aead_init(tfm);
1371 pr_err("hisi_sec2: aead init error!\n");
1375 auth_ctx->hash_tfm = crypto_alloc_shash(hash_name, 0, 0);
1376 if (IS_ERR(auth_ctx->hash_tfm)) {
1377 dev_err(ctx->dev, "aead alloc shash error!\n");
1379 return PTR_ERR(auth_ctx->hash_tfm);
1385 static void sec_aead_ctx_exit(struct crypto_aead *tfm)
1387 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
1389 crypto_free_shash(ctx->a_ctx.hash_tfm);
1393 static int sec_aead_sha1_ctx_init(struct crypto_aead *tfm)
1395 return sec_aead_ctx_init(tfm, "sha1");
1398 static int sec_aead_sha256_ctx_init(struct crypto_aead *tfm)
1400 return sec_aead_ctx_init(tfm, "sha256");
1403 static int sec_aead_sha512_ctx_init(struct crypto_aead *tfm)
1405 return sec_aead_ctx_init(tfm, "sha512");
1408 static int sec_skcipher_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
1410 struct skcipher_request *sk_req = sreq->c_req.sk_req;
1411 struct device *dev = ctx->dev;
1412 u8 c_alg = ctx->c_ctx.c_alg;
1414 if (unlikely(!sk_req->src || !sk_req->dst)) {
1415 dev_err(dev, "skcipher input param error!\n");
1418 sreq->c_req.c_len = sk_req->cryptlen;
1420 if (ctx->pbuf_supported && sk_req->cryptlen <= SEC_PBUF_SZ)
1421 sreq->use_pbuf = true;
1423 sreq->use_pbuf = false;
1425 if (c_alg == SEC_CALG_3DES) {
1426 if (unlikely(sk_req->cryptlen & (DES3_EDE_BLOCK_SIZE - 1))) {
1427 dev_err(dev, "skcipher 3des input length error!\n");
1431 } else if (c_alg == SEC_CALG_AES || c_alg == SEC_CALG_SM4) {
1432 if (unlikely(sk_req->cryptlen & (AES_BLOCK_SIZE - 1))) {
1433 dev_err(dev, "skcipher aes input length error!\n");
1439 dev_err(dev, "skcipher algorithm error!\n");
1443 static int sec_skcipher_crypto(struct skcipher_request *sk_req, bool encrypt)
1445 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(sk_req);
1446 struct sec_req *req = skcipher_request_ctx(sk_req);
1447 struct sec_ctx *ctx = crypto_skcipher_ctx(tfm);
1450 if (!sk_req->cryptlen)
1453 req->flag = sk_req->base.flags;
1454 req->c_req.sk_req = sk_req;
1455 req->c_req.encrypt = encrypt;
1458 ret = sec_skcipher_param_check(ctx, req);
1462 return ctx->req_op->process(ctx, req);
1465 static int sec_skcipher_encrypt(struct skcipher_request *sk_req)
1467 return sec_skcipher_crypto(sk_req, true);
1470 static int sec_skcipher_decrypt(struct skcipher_request *sk_req)
1472 return sec_skcipher_crypto(sk_req, false);
1475 #define SEC_SKCIPHER_GEN_ALG(sec_cra_name, sec_set_key, sec_min_key_size, \
1476 sec_max_key_size, ctx_init, ctx_exit, blk_size, iv_size)\
1479 .cra_name = sec_cra_name,\
1480 .cra_driver_name = "hisi_sec_"sec_cra_name,\
1481 .cra_priority = SEC_PRIORITY,\
1482 .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,\
1483 .cra_blocksize = blk_size,\
1484 .cra_ctxsize = sizeof(struct sec_ctx),\
1485 .cra_module = THIS_MODULE,\
1489 .setkey = sec_set_key,\
1490 .decrypt = sec_skcipher_decrypt,\
1491 .encrypt = sec_skcipher_encrypt,\
1492 .min_keysize = sec_min_key_size,\
1493 .max_keysize = sec_max_key_size,\
1497 #define SEC_SKCIPHER_ALG(name, key_func, min_key_size, \
1498 max_key_size, blk_size, iv_size) \
1499 SEC_SKCIPHER_GEN_ALG(name, key_func, min_key_size, max_key_size, \
1500 sec_skcipher_ctx_init, sec_skcipher_ctx_exit, blk_size, iv_size)
1502 static struct skcipher_alg sec_skciphers[] = {
1503 SEC_SKCIPHER_ALG("ecb(aes)", sec_setkey_aes_ecb,
1504 AES_MIN_KEY_SIZE, AES_MAX_KEY_SIZE,
1507 SEC_SKCIPHER_ALG("cbc(aes)", sec_setkey_aes_cbc,
1508 AES_MIN_KEY_SIZE, AES_MAX_KEY_SIZE,
1509 AES_BLOCK_SIZE, AES_BLOCK_SIZE)
1511 SEC_SKCIPHER_ALG("xts(aes)", sec_setkey_aes_xts,
1512 SEC_XTS_MIN_KEY_SIZE, SEC_XTS_MAX_KEY_SIZE,
1513 AES_BLOCK_SIZE, AES_BLOCK_SIZE)
1515 SEC_SKCIPHER_ALG("ecb(des3_ede)", sec_setkey_3des_ecb,
1516 SEC_DES3_3KEY_SIZE, SEC_DES3_3KEY_SIZE,
1517 DES3_EDE_BLOCK_SIZE, 0)
1519 SEC_SKCIPHER_ALG("cbc(des3_ede)", sec_setkey_3des_cbc,
1520 SEC_DES3_3KEY_SIZE, SEC_DES3_3KEY_SIZE,
1521 DES3_EDE_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE)
1523 SEC_SKCIPHER_ALG("xts(sm4)", sec_setkey_sm4_xts,
1524 SEC_XTS_MIN_KEY_SIZE, SEC_XTS_MIN_KEY_SIZE,
1525 AES_BLOCK_SIZE, AES_BLOCK_SIZE)
1527 SEC_SKCIPHER_ALG("cbc(sm4)", sec_setkey_sm4_cbc,
1528 AES_MIN_KEY_SIZE, AES_MIN_KEY_SIZE,
1529 AES_BLOCK_SIZE, AES_BLOCK_SIZE)
1532 static int sec_aead_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
1534 struct aead_request *req = sreq->aead_req.aead_req;
1535 struct crypto_aead *tfm = crypto_aead_reqtfm(req);
1536 size_t authsize = crypto_aead_authsize(tfm);
1537 struct device *dev = ctx->dev;
1538 u8 c_alg = ctx->c_ctx.c_alg;
1540 if (unlikely(!req->src || !req->dst || !req->cryptlen ||
1541 req->assoclen > SEC_MAX_AAD_LEN)) {
1542 dev_err(dev, "aead input param error!\n");
1546 if (ctx->pbuf_supported && (req->cryptlen + req->assoclen) <=
1548 sreq->use_pbuf = true;
1550 sreq->use_pbuf = false;
1552 /* Support AES only */
1553 if (unlikely(c_alg != SEC_CALG_AES)) {
1554 dev_err(dev, "aead crypto alg error!\n");
1558 if (sreq->c_req.encrypt)
1559 sreq->c_req.c_len = req->cryptlen;
1561 sreq->c_req.c_len = req->cryptlen - authsize;
1563 if (unlikely(sreq->c_req.c_len & (AES_BLOCK_SIZE - 1))) {
1564 dev_err(dev, "aead crypto length error!\n");
1571 static int sec_aead_crypto(struct aead_request *a_req, bool encrypt)
1573 struct crypto_aead *tfm = crypto_aead_reqtfm(a_req);
1574 struct sec_req *req = aead_request_ctx(a_req);
1575 struct sec_ctx *ctx = crypto_aead_ctx(tfm);
1578 req->flag = a_req->base.flags;
1579 req->aead_req.aead_req = a_req;
1580 req->c_req.encrypt = encrypt;
1583 ret = sec_aead_param_check(ctx, req);
1587 return ctx->req_op->process(ctx, req);
1590 static int sec_aead_encrypt(struct aead_request *a_req)
1592 return sec_aead_crypto(a_req, true);
1595 static int sec_aead_decrypt(struct aead_request *a_req)
1597 return sec_aead_crypto(a_req, false);
1600 #define SEC_AEAD_GEN_ALG(sec_cra_name, sec_set_key, ctx_init,\
1601 ctx_exit, blk_size, iv_size, max_authsize)\
1604 .cra_name = sec_cra_name,\
1605 .cra_driver_name = "hisi_sec_"sec_cra_name,\
1606 .cra_priority = SEC_PRIORITY,\
1607 .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,\
1608 .cra_blocksize = blk_size,\
1609 .cra_ctxsize = sizeof(struct sec_ctx),\
1610 .cra_module = THIS_MODULE,\
1614 .setkey = sec_set_key,\
1615 .decrypt = sec_aead_decrypt,\
1616 .encrypt = sec_aead_encrypt,\
1618 .maxauthsize = max_authsize,\
1621 #define SEC_AEAD_ALG(algname, keyfunc, aead_init, blksize, ivsize, authsize)\
1622 SEC_AEAD_GEN_ALG(algname, keyfunc, aead_init,\
1623 sec_aead_ctx_exit, blksize, ivsize, authsize)
1625 static struct aead_alg sec_aeads[] = {
1626 SEC_AEAD_ALG("authenc(hmac(sha1),cbc(aes))",
1627 sec_setkey_aes_cbc_sha1, sec_aead_sha1_ctx_init,
1628 AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA1_DIGEST_SIZE),
1630 SEC_AEAD_ALG("authenc(hmac(sha256),cbc(aes))",
1631 sec_setkey_aes_cbc_sha256, sec_aead_sha256_ctx_init,
1632 AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA256_DIGEST_SIZE),
1634 SEC_AEAD_ALG("authenc(hmac(sha512),cbc(aes))",
1635 sec_setkey_aes_cbc_sha512, sec_aead_sha512_ctx_init,
1636 AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA512_DIGEST_SIZE),
1639 int sec_register_to_crypto(void)
1643 /* To avoid repeat register */
1644 ret = crypto_register_skciphers(sec_skciphers,
1645 ARRAY_SIZE(sec_skciphers));
1649 ret = crypto_register_aeads(sec_aeads, ARRAY_SIZE(sec_aeads));
1651 crypto_unregister_skciphers(sec_skciphers,
1652 ARRAY_SIZE(sec_skciphers));
1656 void sec_unregister_from_crypto(void)
1658 crypto_unregister_skciphers(sec_skciphers,
1659 ARRAY_SIZE(sec_skciphers));
1660 crypto_unregister_aeads(sec_aeads, ARRAY_SIZE(sec_aeads));