Thomas Gleixner | 09c434b | 2019-05-19 13:08:20 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2 | /* n2_core.c: Niagara2 Stream Processing Unit (SPU) crypto support. |
| 3 | * |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 4 | * Copyright (C) 2010, 2011 David S. Miller <davem@davemloft.net> |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 8 | |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/of.h> |
| 12 | #include <linux/of_device.h> |
| 13 | #include <linux/cpumask.h> |
| 14 | #include <linux/slab.h> |
| 15 | #include <linux/interrupt.h> |
| 16 | #include <linux/crypto.h> |
| 17 | #include <crypto/md5.h> |
| 18 | #include <crypto/sha.h> |
| 19 | #include <crypto/aes.h> |
Ard Biesheuvel | d4b90db | 2019-08-15 12:00:58 +0300 | [diff] [blame] | 20 | #include <crypto/internal/des.h> |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 21 | #include <linux/mutex.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/sched.h> |
| 24 | |
| 25 | #include <crypto/internal/hash.h> |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 26 | #include <crypto/internal/skcipher.h> |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 27 | #include <crypto/scatterwalk.h> |
| 28 | #include <crypto/algapi.h> |
| 29 | |
| 30 | #include <asm/hypervisor.h> |
| 31 | #include <asm/mdesc.h> |
| 32 | |
| 33 | #include "n2_core.h" |
| 34 | |
| 35 | #define DRV_MODULE_NAME "n2_crypto" |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 36 | #define DRV_MODULE_VERSION "0.2" |
| 37 | #define DRV_MODULE_RELDATE "July 28, 2011" |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 38 | |
LABBE Corentin | 5082687 | 2015-10-14 21:15:13 +0200 | [diff] [blame] | 39 | static const char version[] = |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 40 | DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; |
| 41 | |
| 42 | MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); |
| 43 | MODULE_DESCRIPTION("Niagara2 Crypto driver"); |
| 44 | MODULE_LICENSE("GPL"); |
| 45 | MODULE_VERSION(DRV_MODULE_VERSION); |
| 46 | |
David S. Miller | 1080362 | 2012-09-15 09:06:30 -0700 | [diff] [blame] | 47 | #define N2_CRA_PRIORITY 200 |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 48 | |
| 49 | static DEFINE_MUTEX(spu_lock); |
| 50 | |
| 51 | struct spu_queue { |
| 52 | cpumask_t sharing; |
| 53 | unsigned long qhandle; |
| 54 | |
| 55 | spinlock_t lock; |
| 56 | u8 q_type; |
| 57 | void *q; |
| 58 | unsigned long head; |
| 59 | unsigned long tail; |
| 60 | struct list_head jobs; |
| 61 | |
| 62 | unsigned long devino; |
| 63 | |
| 64 | char irq_name[32]; |
| 65 | unsigned int irq; |
| 66 | |
| 67 | struct list_head list; |
| 68 | }; |
| 69 | |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 70 | struct spu_qreg { |
| 71 | struct spu_queue *queue; |
| 72 | unsigned long type; |
| 73 | }; |
| 74 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 75 | static struct spu_queue **cpu_to_cwq; |
| 76 | static struct spu_queue **cpu_to_mau; |
| 77 | |
| 78 | static unsigned long spu_next_offset(struct spu_queue *q, unsigned long off) |
| 79 | { |
| 80 | if (q->q_type == HV_NCS_QTYPE_MAU) { |
| 81 | off += MAU_ENTRY_SIZE; |
| 82 | if (off == (MAU_ENTRY_SIZE * MAU_NUM_ENTRIES)) |
| 83 | off = 0; |
| 84 | } else { |
| 85 | off += CWQ_ENTRY_SIZE; |
| 86 | if (off == (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES)) |
| 87 | off = 0; |
| 88 | } |
| 89 | return off; |
| 90 | } |
| 91 | |
| 92 | struct n2_request_common { |
| 93 | struct list_head entry; |
| 94 | unsigned int offset; |
| 95 | }; |
| 96 | #define OFFSET_NOT_RUNNING (~(unsigned int)0) |
| 97 | |
| 98 | /* An async job request records the final tail value it used in |
| 99 | * n2_request_common->offset, test to see if that offset is in |
| 100 | * the range old_head, new_head, inclusive. |
| 101 | */ |
| 102 | static inline bool job_finished(struct spu_queue *q, unsigned int offset, |
| 103 | unsigned long old_head, unsigned long new_head) |
| 104 | { |
| 105 | if (old_head <= new_head) { |
| 106 | if (offset > old_head && offset <= new_head) |
| 107 | return true; |
| 108 | } else { |
| 109 | if (offset > old_head || offset <= new_head) |
| 110 | return true; |
| 111 | } |
| 112 | return false; |
| 113 | } |
| 114 | |
| 115 | /* When the HEAD marker is unequal to the actual HEAD, we get |
| 116 | * a virtual device INO interrupt. We should process the |
| 117 | * completed CWQ entries and adjust the HEAD marker to clear |
| 118 | * the IRQ. |
| 119 | */ |
| 120 | static irqreturn_t cwq_intr(int irq, void *dev_id) |
| 121 | { |
| 122 | unsigned long off, new_head, hv_ret; |
| 123 | struct spu_queue *q = dev_id; |
| 124 | |
| 125 | pr_err("CPU[%d]: Got CWQ interrupt for qhdl[%lx]\n", |
| 126 | smp_processor_id(), q->qhandle); |
| 127 | |
| 128 | spin_lock(&q->lock); |
| 129 | |
| 130 | hv_ret = sun4v_ncs_gethead(q->qhandle, &new_head); |
| 131 | |
| 132 | pr_err("CPU[%d]: CWQ gethead[%lx] hv_ret[%lu]\n", |
| 133 | smp_processor_id(), new_head, hv_ret); |
| 134 | |
| 135 | for (off = q->head; off != new_head; off = spu_next_offset(q, off)) { |
| 136 | /* XXX ... XXX */ |
| 137 | } |
| 138 | |
| 139 | hv_ret = sun4v_ncs_sethead_marker(q->qhandle, new_head); |
| 140 | if (hv_ret == HV_EOK) |
| 141 | q->head = new_head; |
| 142 | |
| 143 | spin_unlock(&q->lock); |
| 144 | |
| 145 | return IRQ_HANDLED; |
| 146 | } |
| 147 | |
| 148 | static irqreturn_t mau_intr(int irq, void *dev_id) |
| 149 | { |
| 150 | struct spu_queue *q = dev_id; |
| 151 | unsigned long head, hv_ret; |
| 152 | |
| 153 | spin_lock(&q->lock); |
| 154 | |
| 155 | pr_err("CPU[%d]: Got MAU interrupt for qhdl[%lx]\n", |
| 156 | smp_processor_id(), q->qhandle); |
| 157 | |
| 158 | hv_ret = sun4v_ncs_gethead(q->qhandle, &head); |
| 159 | |
| 160 | pr_err("CPU[%d]: MAU gethead[%lx] hv_ret[%lu]\n", |
| 161 | smp_processor_id(), head, hv_ret); |
| 162 | |
| 163 | sun4v_ncs_sethead_marker(q->qhandle, head); |
| 164 | |
| 165 | spin_unlock(&q->lock); |
| 166 | |
| 167 | return IRQ_HANDLED; |
| 168 | } |
| 169 | |
| 170 | static void *spu_queue_next(struct spu_queue *q, void *cur) |
| 171 | { |
| 172 | return q->q + spu_next_offset(q, cur - q->q); |
| 173 | } |
| 174 | |
| 175 | static int spu_queue_num_free(struct spu_queue *q) |
| 176 | { |
| 177 | unsigned long head = q->head; |
| 178 | unsigned long tail = q->tail; |
| 179 | unsigned long end = (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES); |
| 180 | unsigned long diff; |
| 181 | |
| 182 | if (head > tail) |
| 183 | diff = head - tail; |
| 184 | else |
| 185 | diff = (end - tail) + head; |
| 186 | |
| 187 | return (diff / CWQ_ENTRY_SIZE) - 1; |
| 188 | } |
| 189 | |
| 190 | static void *spu_queue_alloc(struct spu_queue *q, int num_entries) |
| 191 | { |
| 192 | int avail = spu_queue_num_free(q); |
| 193 | |
| 194 | if (avail >= num_entries) |
| 195 | return q->q + q->tail; |
| 196 | |
| 197 | return NULL; |
| 198 | } |
| 199 | |
| 200 | static unsigned long spu_queue_submit(struct spu_queue *q, void *last) |
| 201 | { |
| 202 | unsigned long hv_ret, new_tail; |
| 203 | |
| 204 | new_tail = spu_next_offset(q, last - q->q); |
| 205 | |
| 206 | hv_ret = sun4v_ncs_settail(q->qhandle, new_tail); |
| 207 | if (hv_ret == HV_EOK) |
| 208 | q->tail = new_tail; |
| 209 | return hv_ret; |
| 210 | } |
| 211 | |
| 212 | static u64 control_word_base(unsigned int len, unsigned int hmac_key_len, |
| 213 | int enc_type, int auth_type, |
| 214 | unsigned int hash_len, |
| 215 | bool sfas, bool sob, bool eob, bool encrypt, |
| 216 | int opcode) |
| 217 | { |
| 218 | u64 word = (len - 1) & CONTROL_LEN; |
| 219 | |
| 220 | word |= ((u64) opcode << CONTROL_OPCODE_SHIFT); |
| 221 | word |= ((u64) enc_type << CONTROL_ENC_TYPE_SHIFT); |
| 222 | word |= ((u64) auth_type << CONTROL_AUTH_TYPE_SHIFT); |
| 223 | if (sfas) |
| 224 | word |= CONTROL_STORE_FINAL_AUTH_STATE; |
| 225 | if (sob) |
| 226 | word |= CONTROL_START_OF_BLOCK; |
| 227 | if (eob) |
| 228 | word |= CONTROL_END_OF_BLOCK; |
| 229 | if (encrypt) |
| 230 | word |= CONTROL_ENCRYPT; |
| 231 | if (hmac_key_len) |
| 232 | word |= ((u64) (hmac_key_len - 1)) << CONTROL_HMAC_KEY_LEN_SHIFT; |
| 233 | if (hash_len) |
| 234 | word |= ((u64) (hash_len - 1)) << CONTROL_HASH_LEN_SHIFT; |
| 235 | |
| 236 | return word; |
| 237 | } |
| 238 | |
| 239 | #if 0 |
| 240 | static inline bool n2_should_run_async(struct spu_queue *qp, int this_len) |
| 241 | { |
| 242 | if (this_len >= 64 || |
| 243 | qp->head != qp->tail) |
| 244 | return true; |
| 245 | return false; |
| 246 | } |
| 247 | #endif |
| 248 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 249 | struct n2_ahash_alg { |
| 250 | struct list_head entry; |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 251 | const u8 *hash_zero; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 252 | const u32 *hash_init; |
| 253 | u8 hw_op_hashsz; |
| 254 | u8 digest_size; |
| 255 | u8 auth_type; |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 256 | u8 hmac_type; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 257 | struct ahash_alg alg; |
| 258 | }; |
| 259 | |
| 260 | static inline struct n2_ahash_alg *n2_ahash_alg(struct crypto_tfm *tfm) |
| 261 | { |
| 262 | struct crypto_alg *alg = tfm->__crt_alg; |
| 263 | struct ahash_alg *ahash_alg; |
| 264 | |
| 265 | ahash_alg = container_of(alg, struct ahash_alg, halg.base); |
| 266 | |
| 267 | return container_of(ahash_alg, struct n2_ahash_alg, alg); |
| 268 | } |
| 269 | |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 270 | struct n2_hmac_alg { |
| 271 | const char *child_alg; |
| 272 | struct n2_ahash_alg derived; |
| 273 | }; |
| 274 | |
| 275 | static inline struct n2_hmac_alg *n2_hmac_alg(struct crypto_tfm *tfm) |
| 276 | { |
| 277 | struct crypto_alg *alg = tfm->__crt_alg; |
| 278 | struct ahash_alg *ahash_alg; |
| 279 | |
| 280 | ahash_alg = container_of(alg, struct ahash_alg, halg.base); |
| 281 | |
| 282 | return container_of(ahash_alg, struct n2_hmac_alg, derived.alg); |
| 283 | } |
| 284 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 285 | struct n2_hash_ctx { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 286 | struct crypto_ahash *fallback_tfm; |
| 287 | }; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 288 | |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 289 | #define N2_HASH_KEY_MAX 32 /* HW limit for all HMAC requests */ |
| 290 | |
| 291 | struct n2_hmac_ctx { |
| 292 | struct n2_hash_ctx base; |
| 293 | |
| 294 | struct crypto_shash *child_shash; |
| 295 | |
| 296 | int hash_key_len; |
| 297 | unsigned char hash_key[N2_HASH_KEY_MAX]; |
| 298 | }; |
| 299 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 300 | struct n2_hash_req_ctx { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 301 | union { |
| 302 | struct md5_state md5; |
| 303 | struct sha1_state sha1; |
| 304 | struct sha256_state sha256; |
| 305 | } u; |
| 306 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 307 | struct ahash_request fallback_req; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 308 | }; |
| 309 | |
| 310 | static int n2_hash_async_init(struct ahash_request *req) |
| 311 | { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 312 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 313 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
| 314 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
| 315 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 316 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 317 | rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 318 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 319 | return crypto_ahash_init(&rctx->fallback_req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static int n2_hash_async_update(struct ahash_request *req) |
| 323 | { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 324 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 325 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
| 326 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
| 327 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 328 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 329 | rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
| 330 | rctx->fallback_req.nbytes = req->nbytes; |
| 331 | rctx->fallback_req.src = req->src; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 332 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 333 | return crypto_ahash_update(&rctx->fallback_req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | static int n2_hash_async_final(struct ahash_request *req) |
| 337 | { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 338 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 339 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
| 340 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
| 341 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 342 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 343 | rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
| 344 | rctx->fallback_req.result = req->result; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 345 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 346 | return crypto_ahash_final(&rctx->fallback_req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | static int n2_hash_async_finup(struct ahash_request *req) |
| 350 | { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 351 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 352 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
| 353 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
| 354 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 355 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 356 | rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
| 357 | rctx->fallback_req.nbytes = req->nbytes; |
| 358 | rctx->fallback_req.src = req->src; |
| 359 | rctx->fallback_req.result = req->result; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 360 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 361 | return crypto_ahash_finup(&rctx->fallback_req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 362 | } |
| 363 | |
Kamil Konieczny | 378fe6f | 2018-01-18 19:34:01 +0100 | [diff] [blame] | 364 | static int n2_hash_async_noimport(struct ahash_request *req, const void *in) |
| 365 | { |
| 366 | return -ENOSYS; |
| 367 | } |
| 368 | |
| 369 | static int n2_hash_async_noexport(struct ahash_request *req, void *out) |
| 370 | { |
| 371 | return -ENOSYS; |
| 372 | } |
| 373 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 374 | static int n2_hash_cra_init(struct crypto_tfm *tfm) |
| 375 | { |
Marek Vasut | 5837af0 | 2014-05-14 11:41:01 +0200 | [diff] [blame] | 376 | const char *fallback_driver_name = crypto_tfm_alg_name(tfm); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 377 | struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); |
| 378 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); |
| 379 | struct crypto_ahash *fallback_tfm; |
| 380 | int err; |
| 381 | |
| 382 | fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, |
| 383 | CRYPTO_ALG_NEED_FALLBACK); |
| 384 | if (IS_ERR(fallback_tfm)) { |
Kefeng Wang | cacc594 | 2019-10-18 11:18:29 +0800 | [diff] [blame] | 385 | pr_warn("Fallback driver '%s' could not be loaded!\n", |
| 386 | fallback_driver_name); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 387 | err = PTR_ERR(fallback_tfm); |
| 388 | goto out; |
| 389 | } |
| 390 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 391 | crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + |
| 392 | crypto_ahash_reqsize(fallback_tfm))); |
| 393 | |
| 394 | ctx->fallback_tfm = fallback_tfm; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 395 | return 0; |
| 396 | |
| 397 | out: |
| 398 | return err; |
| 399 | } |
| 400 | |
| 401 | static void n2_hash_cra_exit(struct crypto_tfm *tfm) |
| 402 | { |
| 403 | struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); |
| 404 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); |
| 405 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 406 | crypto_free_ahash(ctx->fallback_tfm); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 407 | } |
| 408 | |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 409 | static int n2_hmac_cra_init(struct crypto_tfm *tfm) |
| 410 | { |
Marek Vasut | 5837af0 | 2014-05-14 11:41:01 +0200 | [diff] [blame] | 411 | const char *fallback_driver_name = crypto_tfm_alg_name(tfm); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 412 | struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); |
| 413 | struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); |
| 414 | struct n2_hmac_alg *n2alg = n2_hmac_alg(tfm); |
| 415 | struct crypto_ahash *fallback_tfm; |
| 416 | struct crypto_shash *child_shash; |
| 417 | int err; |
| 418 | |
| 419 | fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, |
| 420 | CRYPTO_ALG_NEED_FALLBACK); |
| 421 | if (IS_ERR(fallback_tfm)) { |
Kefeng Wang | cacc594 | 2019-10-18 11:18:29 +0800 | [diff] [blame] | 422 | pr_warn("Fallback driver '%s' could not be loaded!\n", |
| 423 | fallback_driver_name); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 424 | err = PTR_ERR(fallback_tfm); |
| 425 | goto out; |
| 426 | } |
| 427 | |
| 428 | child_shash = crypto_alloc_shash(n2alg->child_alg, 0, 0); |
| 429 | if (IS_ERR(child_shash)) { |
Kefeng Wang | cacc594 | 2019-10-18 11:18:29 +0800 | [diff] [blame] | 430 | pr_warn("Child shash '%s' could not be loaded!\n", |
| 431 | n2alg->child_alg); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 432 | err = PTR_ERR(child_shash); |
| 433 | goto out_free_fallback; |
| 434 | } |
| 435 | |
| 436 | crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + |
| 437 | crypto_ahash_reqsize(fallback_tfm))); |
| 438 | |
| 439 | ctx->child_shash = child_shash; |
| 440 | ctx->base.fallback_tfm = fallback_tfm; |
| 441 | return 0; |
| 442 | |
| 443 | out_free_fallback: |
| 444 | crypto_free_ahash(fallback_tfm); |
| 445 | |
| 446 | out: |
| 447 | return err; |
| 448 | } |
| 449 | |
| 450 | static void n2_hmac_cra_exit(struct crypto_tfm *tfm) |
| 451 | { |
| 452 | struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); |
| 453 | struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); |
| 454 | |
| 455 | crypto_free_ahash(ctx->base.fallback_tfm); |
| 456 | crypto_free_shash(ctx->child_shash); |
| 457 | } |
| 458 | |
| 459 | static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 460 | unsigned int keylen) |
| 461 | { |
| 462 | struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); |
| 463 | struct crypto_shash *child_shash = ctx->child_shash; |
| 464 | struct crypto_ahash *fallback_tfm; |
Behan Webster | ce1f3e47 | 2014-04-04 18:18:00 -0300 | [diff] [blame] | 465 | SHASH_DESC_ON_STACK(shash, child_shash); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 466 | int err, bs, ds; |
| 467 | |
| 468 | fallback_tfm = ctx->base.fallback_tfm; |
| 469 | err = crypto_ahash_setkey(fallback_tfm, key, keylen); |
| 470 | if (err) |
| 471 | return err; |
| 472 | |
Behan Webster | ce1f3e47 | 2014-04-04 18:18:00 -0300 | [diff] [blame] | 473 | shash->tfm = child_shash; |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 474 | |
| 475 | bs = crypto_shash_blocksize(child_shash); |
| 476 | ds = crypto_shash_digestsize(child_shash); |
| 477 | BUG_ON(ds > N2_HASH_KEY_MAX); |
| 478 | if (keylen > bs) { |
Behan Webster | ce1f3e47 | 2014-04-04 18:18:00 -0300 | [diff] [blame] | 479 | err = crypto_shash_digest(shash, key, keylen, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 480 | ctx->hash_key); |
| 481 | if (err) |
| 482 | return err; |
| 483 | keylen = ds; |
| 484 | } else if (keylen <= N2_HASH_KEY_MAX) |
| 485 | memcpy(ctx->hash_key, key, keylen); |
| 486 | |
| 487 | ctx->hash_key_len = keylen; |
| 488 | |
| 489 | return err; |
| 490 | } |
| 491 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 492 | static unsigned long wait_for_tail(struct spu_queue *qp) |
| 493 | { |
| 494 | unsigned long head, hv_ret; |
| 495 | |
| 496 | do { |
| 497 | hv_ret = sun4v_ncs_gethead(qp->qhandle, &head); |
| 498 | if (hv_ret != HV_EOK) { |
| 499 | pr_err("Hypervisor error on gethead\n"); |
| 500 | break; |
| 501 | } |
| 502 | if (head == qp->tail) { |
| 503 | qp->head = head; |
| 504 | break; |
| 505 | } |
| 506 | } while (1); |
| 507 | return hv_ret; |
| 508 | } |
| 509 | |
| 510 | static unsigned long submit_and_wait_for_tail(struct spu_queue *qp, |
| 511 | struct cwq_initial_entry *ent) |
| 512 | { |
| 513 | unsigned long hv_ret = spu_queue_submit(qp, ent); |
| 514 | |
| 515 | if (hv_ret == HV_EOK) |
| 516 | hv_ret = wait_for_tail(qp); |
| 517 | |
| 518 | return hv_ret; |
| 519 | } |
| 520 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 521 | static int n2_do_async_digest(struct ahash_request *req, |
| 522 | unsigned int auth_type, unsigned int digest_size, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 523 | unsigned int result_size, void *hash_loc, |
| 524 | unsigned long auth_key, unsigned int auth_key_len) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 525 | { |
| 526 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 527 | struct cwq_initial_entry *ent; |
| 528 | struct crypto_hash_walk walk; |
| 529 | struct spu_queue *qp; |
| 530 | unsigned long flags; |
| 531 | int err = -ENODEV; |
| 532 | int nbytes, cpu; |
| 533 | |
| 534 | /* The total effective length of the operation may not |
| 535 | * exceed 2^16. |
| 536 | */ |
| 537 | if (unlikely(req->nbytes > (1 << 16))) { |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 538 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 65a23d6 | 2010-05-22 01:11:03 -0700 | [diff] [blame] | 539 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 540 | |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 541 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 542 | rctx->fallback_req.base.flags = |
| 543 | req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
| 544 | rctx->fallback_req.nbytes = req->nbytes; |
| 545 | rctx->fallback_req.src = req->src; |
| 546 | rctx->fallback_req.result = req->result; |
| 547 | |
| 548 | return crypto_ahash_digest(&rctx->fallback_req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 549 | } |
| 550 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 551 | nbytes = crypto_hash_walk_first(req, &walk); |
| 552 | |
| 553 | cpu = get_cpu(); |
| 554 | qp = cpu_to_cwq[cpu]; |
| 555 | if (!qp) |
| 556 | goto out; |
| 557 | |
| 558 | spin_lock_irqsave(&qp->lock, flags); |
| 559 | |
| 560 | /* XXX can do better, improve this later by doing a by-hand scatterlist |
| 561 | * XXX walk, etc. |
| 562 | */ |
| 563 | ent = qp->q + qp->tail; |
| 564 | |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 565 | ent->control = control_word_base(nbytes, auth_key_len, 0, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 566 | auth_type, digest_size, |
| 567 | false, true, false, false, |
| 568 | OPCODE_INPLACE_BIT | |
| 569 | OPCODE_AUTH_MAC); |
| 570 | ent->src_addr = __pa(walk.data); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 571 | ent->auth_key_addr = auth_key; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 572 | ent->auth_iv_addr = __pa(hash_loc); |
| 573 | ent->final_auth_state_addr = 0UL; |
| 574 | ent->enc_key_addr = 0UL; |
| 575 | ent->enc_iv_addr = 0UL; |
| 576 | ent->dest_addr = __pa(hash_loc); |
| 577 | |
| 578 | nbytes = crypto_hash_walk_done(&walk, 0); |
| 579 | while (nbytes > 0) { |
| 580 | ent = spu_queue_next(qp, ent); |
| 581 | |
| 582 | ent->control = (nbytes - 1); |
| 583 | ent->src_addr = __pa(walk.data); |
| 584 | ent->auth_key_addr = 0UL; |
| 585 | ent->auth_iv_addr = 0UL; |
| 586 | ent->final_auth_state_addr = 0UL; |
| 587 | ent->enc_key_addr = 0UL; |
| 588 | ent->enc_iv_addr = 0UL; |
| 589 | ent->dest_addr = 0UL; |
| 590 | |
| 591 | nbytes = crypto_hash_walk_done(&walk, 0); |
| 592 | } |
| 593 | ent->control |= CONTROL_END_OF_BLOCK; |
| 594 | |
| 595 | if (submit_and_wait_for_tail(qp, ent) != HV_EOK) |
| 596 | err = -EINVAL; |
| 597 | else |
| 598 | err = 0; |
| 599 | |
| 600 | spin_unlock_irqrestore(&qp->lock, flags); |
| 601 | |
| 602 | if (!err) |
| 603 | memcpy(req->result, hash_loc, result_size); |
| 604 | out: |
| 605 | put_cpu(); |
| 606 | |
| 607 | return err; |
| 608 | } |
| 609 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 610 | static int n2_hash_async_digest(struct ahash_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 611 | { |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 612 | struct n2_ahash_alg *n2alg = n2_ahash_alg(req->base.tfm); |
David S. Miller | c9aa55e | 2010-05-22 01:09:04 -0700 | [diff] [blame] | 613 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 614 | int ds; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 615 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 616 | ds = n2alg->digest_size; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 617 | if (unlikely(req->nbytes == 0)) { |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 618 | memcpy(req->result, n2alg->hash_zero, ds); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 619 | return 0; |
| 620 | } |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 621 | memcpy(&rctx->u, n2alg->hash_init, n2alg->hw_op_hashsz); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 622 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 623 | return n2_do_async_digest(req, n2alg->auth_type, |
| 624 | n2alg->hw_op_hashsz, ds, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 625 | &rctx->u, 0UL, 0); |
| 626 | } |
| 627 | |
| 628 | static int n2_hmac_async_digest(struct ahash_request *req) |
| 629 | { |
| 630 | struct n2_hmac_alg *n2alg = n2_hmac_alg(req->base.tfm); |
| 631 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
| 632 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
| 633 | struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); |
| 634 | int ds; |
| 635 | |
| 636 | ds = n2alg->derived.digest_size; |
| 637 | if (unlikely(req->nbytes == 0) || |
| 638 | unlikely(ctx->hash_key_len > N2_HASH_KEY_MAX)) { |
| 639 | struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); |
| 640 | struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
| 641 | |
| 642 | ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); |
| 643 | rctx->fallback_req.base.flags = |
| 644 | req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; |
| 645 | rctx->fallback_req.nbytes = req->nbytes; |
| 646 | rctx->fallback_req.src = req->src; |
| 647 | rctx->fallback_req.result = req->result; |
| 648 | |
| 649 | return crypto_ahash_digest(&rctx->fallback_req); |
| 650 | } |
| 651 | memcpy(&rctx->u, n2alg->derived.hash_init, |
| 652 | n2alg->derived.hw_op_hashsz); |
| 653 | |
| 654 | return n2_do_async_digest(req, n2alg->derived.hmac_type, |
| 655 | n2alg->derived.hw_op_hashsz, ds, |
| 656 | &rctx->u, |
| 657 | __pa(&ctx->hash_key), |
| 658 | ctx->hash_key_len); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 659 | } |
| 660 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 661 | struct n2_skcipher_context { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 662 | int key_len; |
| 663 | int enc_type; |
| 664 | union { |
| 665 | u8 aes[AES_MAX_KEY_SIZE]; |
| 666 | u8 des[DES_KEY_SIZE]; |
| 667 | u8 des3[3 * DES_KEY_SIZE]; |
| 668 | u8 arc4[258]; /* S-box, X, Y */ |
| 669 | } key; |
| 670 | }; |
| 671 | |
| 672 | #define N2_CHUNK_ARR_LEN 16 |
| 673 | |
| 674 | struct n2_crypto_chunk { |
| 675 | struct list_head entry; |
| 676 | unsigned long iv_paddr : 44; |
| 677 | unsigned long arr_len : 20; |
| 678 | unsigned long dest_paddr; |
| 679 | unsigned long dest_final; |
| 680 | struct { |
| 681 | unsigned long src_paddr : 44; |
| 682 | unsigned long src_len : 20; |
| 683 | } arr[N2_CHUNK_ARR_LEN]; |
| 684 | }; |
| 685 | |
| 686 | struct n2_request_context { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 687 | struct skcipher_walk walk; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 688 | struct list_head chunk_list; |
| 689 | struct n2_crypto_chunk chunk; |
| 690 | u8 temp_iv[16]; |
| 691 | }; |
| 692 | |
| 693 | /* The SPU allows some level of flexibility for partial cipher blocks |
| 694 | * being specified in a descriptor. |
| 695 | * |
| 696 | * It merely requires that every descriptor's length field is at least |
| 697 | * as large as the cipher block size. This means that a cipher block |
| 698 | * can span at most 2 descriptors. However, this does not allow a |
| 699 | * partial block to span into the final descriptor as that would |
| 700 | * violate the rule (since every descriptor's length must be at lest |
| 701 | * the block size). So, for example, assuming an 8 byte block size: |
| 702 | * |
| 703 | * 0xe --> 0xa --> 0x8 |
| 704 | * |
| 705 | * is a valid length sequence, whereas: |
| 706 | * |
| 707 | * 0xe --> 0xb --> 0x7 |
| 708 | * |
| 709 | * is not a valid sequence. |
| 710 | */ |
| 711 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 712 | struct n2_skcipher_alg { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 713 | struct list_head entry; |
| 714 | u8 enc_type; |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 715 | struct skcipher_alg skcipher; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 716 | }; |
| 717 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 718 | static inline struct n2_skcipher_alg *n2_skcipher_alg(struct crypto_skcipher *tfm) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 719 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 720 | struct skcipher_alg *alg = crypto_skcipher_alg(tfm); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 721 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 722 | return container_of(alg, struct n2_skcipher_alg, skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 723 | } |
| 724 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 725 | struct n2_skcipher_request_context { |
| 726 | struct skcipher_walk walk; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 727 | }; |
| 728 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 729 | static int n2_aes_setkey(struct crypto_skcipher *skcipher, const u8 *key, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 730 | unsigned int keylen) |
| 731 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 732 | struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); |
| 733 | struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); |
| 734 | struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 735 | |
| 736 | ctx->enc_type = (n2alg->enc_type & ENC_TYPE_CHAINING_MASK); |
| 737 | |
| 738 | switch (keylen) { |
| 739 | case AES_KEYSIZE_128: |
| 740 | ctx->enc_type |= ENC_TYPE_ALG_AES128; |
| 741 | break; |
| 742 | case AES_KEYSIZE_192: |
| 743 | ctx->enc_type |= ENC_TYPE_ALG_AES192; |
| 744 | break; |
| 745 | case AES_KEYSIZE_256: |
| 746 | ctx->enc_type |= ENC_TYPE_ALG_AES256; |
| 747 | break; |
| 748 | default: |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 749 | return -EINVAL; |
| 750 | } |
| 751 | |
| 752 | ctx->key_len = keylen; |
| 753 | memcpy(ctx->key.aes, key, keylen); |
| 754 | return 0; |
| 755 | } |
| 756 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 757 | static int n2_des_setkey(struct crypto_skcipher *skcipher, const u8 *key, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 758 | unsigned int keylen) |
| 759 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 760 | struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); |
| 761 | struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); |
| 762 | struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 763 | int err; |
| 764 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 765 | err = verify_skcipher_des_key(skcipher, key); |
Ard Biesheuvel | d4b90db | 2019-08-15 12:00:58 +0300 | [diff] [blame] | 766 | if (err) |
| 767 | return err; |
| 768 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 769 | ctx->enc_type = n2alg->enc_type; |
| 770 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 771 | ctx->key_len = keylen; |
| 772 | memcpy(ctx->key.des, key, keylen); |
| 773 | return 0; |
| 774 | } |
| 775 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 776 | static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 777 | unsigned int keylen) |
| 778 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 779 | struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); |
| 780 | struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); |
| 781 | struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); |
Herbert Xu | e4fffa5 | 2019-04-11 16:51:13 +0800 | [diff] [blame] | 782 | int err; |
| 783 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 784 | err = verify_skcipher_des3_key(skcipher, key); |
Ard Biesheuvel | d4b90db | 2019-08-15 12:00:58 +0300 | [diff] [blame] | 785 | if (err) |
Herbert Xu | e4fffa5 | 2019-04-11 16:51:13 +0800 | [diff] [blame] | 786 | return err; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 787 | |
| 788 | ctx->enc_type = n2alg->enc_type; |
| 789 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 790 | ctx->key_len = keylen; |
| 791 | memcpy(ctx->key.des3, key, keylen); |
| 792 | return 0; |
| 793 | } |
| 794 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 795 | static int n2_arc4_setkey(struct crypto_skcipher *skcipher, const u8 *key, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 796 | unsigned int keylen) |
| 797 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 798 | struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); |
| 799 | struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); |
| 800 | struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 801 | u8 *s = ctx->key.arc4; |
| 802 | u8 *x = s + 256; |
| 803 | u8 *y = x + 1; |
| 804 | int i, j, k; |
| 805 | |
| 806 | ctx->enc_type = n2alg->enc_type; |
| 807 | |
| 808 | j = k = 0; |
| 809 | *x = 0; |
| 810 | *y = 0; |
| 811 | for (i = 0; i < 256; i++) |
| 812 | s[i] = i; |
| 813 | for (i = 0; i < 256; i++) { |
| 814 | u8 a = s[i]; |
| 815 | j = (j + key[k] + a) & 0xff; |
| 816 | s[i] = s[j]; |
| 817 | s[j] = a; |
| 818 | if (++k >= keylen) |
| 819 | k = 0; |
| 820 | } |
| 821 | |
| 822 | return 0; |
| 823 | } |
| 824 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 825 | static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 826 | { |
| 827 | int this_len = nbytes; |
| 828 | |
| 829 | this_len -= (nbytes & (block_size - 1)); |
| 830 | return this_len > (1 << 16) ? (1 << 16) : this_len; |
| 831 | } |
| 832 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 833 | static int __n2_crypt_chunk(struct crypto_skcipher *skcipher, |
| 834 | struct n2_crypto_chunk *cp, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 835 | struct spu_queue *qp, bool encrypt) |
| 836 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 837 | struct n2_skcipher_context *ctx = crypto_skcipher_ctx(skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 838 | struct cwq_initial_entry *ent; |
| 839 | bool in_place; |
| 840 | int i; |
| 841 | |
| 842 | ent = spu_queue_alloc(qp, cp->arr_len); |
| 843 | if (!ent) { |
| 844 | pr_info("queue_alloc() of %d fails\n", |
| 845 | cp->arr_len); |
| 846 | return -EBUSY; |
| 847 | } |
| 848 | |
| 849 | in_place = (cp->dest_paddr == cp->arr[0].src_paddr); |
| 850 | |
| 851 | ent->control = control_word_base(cp->arr[0].src_len, |
| 852 | 0, ctx->enc_type, 0, 0, |
| 853 | false, true, false, encrypt, |
| 854 | OPCODE_ENCRYPT | |
| 855 | (in_place ? OPCODE_INPLACE_BIT : 0)); |
| 856 | ent->src_addr = cp->arr[0].src_paddr; |
| 857 | ent->auth_key_addr = 0UL; |
| 858 | ent->auth_iv_addr = 0UL; |
| 859 | ent->final_auth_state_addr = 0UL; |
| 860 | ent->enc_key_addr = __pa(&ctx->key); |
| 861 | ent->enc_iv_addr = cp->iv_paddr; |
| 862 | ent->dest_addr = (in_place ? 0UL : cp->dest_paddr); |
| 863 | |
| 864 | for (i = 1; i < cp->arr_len; i++) { |
| 865 | ent = spu_queue_next(qp, ent); |
| 866 | |
| 867 | ent->control = cp->arr[i].src_len - 1; |
| 868 | ent->src_addr = cp->arr[i].src_paddr; |
| 869 | ent->auth_key_addr = 0UL; |
| 870 | ent->auth_iv_addr = 0UL; |
| 871 | ent->final_auth_state_addr = 0UL; |
| 872 | ent->enc_key_addr = 0UL; |
| 873 | ent->enc_iv_addr = 0UL; |
| 874 | ent->dest_addr = 0UL; |
| 875 | } |
| 876 | ent->control |= CONTROL_END_OF_BLOCK; |
| 877 | |
| 878 | return (spu_queue_submit(qp, ent) != HV_EOK) ? -EINVAL : 0; |
| 879 | } |
| 880 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 881 | static int n2_compute_chunks(struct skcipher_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 882 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 883 | struct n2_request_context *rctx = skcipher_request_ctx(req); |
| 884 | struct skcipher_walk *walk = &rctx->walk; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 885 | struct n2_crypto_chunk *chunk; |
| 886 | unsigned long dest_prev; |
| 887 | unsigned int tot_len; |
| 888 | bool prev_in_place; |
| 889 | int err, nbytes; |
| 890 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 891 | err = skcipher_walk_async(walk, req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 892 | if (err) |
| 893 | return err; |
| 894 | |
| 895 | INIT_LIST_HEAD(&rctx->chunk_list); |
| 896 | |
| 897 | chunk = &rctx->chunk; |
| 898 | INIT_LIST_HEAD(&chunk->entry); |
| 899 | |
| 900 | chunk->iv_paddr = 0UL; |
| 901 | chunk->arr_len = 0; |
| 902 | chunk->dest_paddr = 0UL; |
| 903 | |
| 904 | prev_in_place = false; |
| 905 | dest_prev = ~0UL; |
| 906 | tot_len = 0; |
| 907 | |
| 908 | while ((nbytes = walk->nbytes) != 0) { |
| 909 | unsigned long dest_paddr, src_paddr; |
| 910 | bool in_place; |
| 911 | int this_len; |
| 912 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 913 | src_paddr = (page_to_phys(walk->src.phys.page) + |
| 914 | walk->src.phys.offset); |
| 915 | dest_paddr = (page_to_phys(walk->dst.phys.page) + |
| 916 | walk->dst.phys.offset); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 917 | in_place = (src_paddr == dest_paddr); |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 918 | this_len = skcipher_descriptor_len(nbytes, walk->blocksize); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 919 | |
| 920 | if (chunk->arr_len != 0) { |
| 921 | if (in_place != prev_in_place || |
| 922 | (!prev_in_place && |
| 923 | dest_paddr != dest_prev) || |
| 924 | chunk->arr_len == N2_CHUNK_ARR_LEN || |
| 925 | tot_len + this_len > (1 << 16)) { |
| 926 | chunk->dest_final = dest_prev; |
| 927 | list_add_tail(&chunk->entry, |
| 928 | &rctx->chunk_list); |
| 929 | chunk = kzalloc(sizeof(*chunk), GFP_ATOMIC); |
| 930 | if (!chunk) { |
| 931 | err = -ENOMEM; |
| 932 | break; |
| 933 | } |
| 934 | INIT_LIST_HEAD(&chunk->entry); |
| 935 | } |
| 936 | } |
| 937 | if (chunk->arr_len == 0) { |
| 938 | chunk->dest_paddr = dest_paddr; |
| 939 | tot_len = 0; |
| 940 | } |
| 941 | chunk->arr[chunk->arr_len].src_paddr = src_paddr; |
| 942 | chunk->arr[chunk->arr_len].src_len = this_len; |
| 943 | chunk->arr_len++; |
| 944 | |
| 945 | dest_prev = dest_paddr + this_len; |
| 946 | prev_in_place = in_place; |
| 947 | tot_len += this_len; |
| 948 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 949 | err = skcipher_walk_done(walk, nbytes - this_len); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 950 | if (err) |
| 951 | break; |
| 952 | } |
| 953 | if (!err && chunk->arr_len != 0) { |
| 954 | chunk->dest_final = dest_prev; |
| 955 | list_add_tail(&chunk->entry, &rctx->chunk_list); |
| 956 | } |
| 957 | |
| 958 | return err; |
| 959 | } |
| 960 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 961 | static void n2_chunk_complete(struct skcipher_request *req, void *final_iv) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 962 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 963 | struct n2_request_context *rctx = skcipher_request_ctx(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 964 | struct n2_crypto_chunk *c, *tmp; |
| 965 | |
| 966 | if (final_iv) |
| 967 | memcpy(rctx->walk.iv, final_iv, rctx->walk.blocksize); |
| 968 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 969 | list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { |
| 970 | list_del(&c->entry); |
| 971 | if (unlikely(c != &rctx->chunk)) |
| 972 | kfree(c); |
| 973 | } |
| 974 | |
| 975 | } |
| 976 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 977 | static int n2_do_ecb(struct skcipher_request *req, bool encrypt) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 978 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 979 | struct n2_request_context *rctx = skcipher_request_ctx(req); |
| 980 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 981 | int err = n2_compute_chunks(req); |
| 982 | struct n2_crypto_chunk *c, *tmp; |
| 983 | unsigned long flags, hv_ret; |
| 984 | struct spu_queue *qp; |
| 985 | |
| 986 | if (err) |
| 987 | return err; |
| 988 | |
| 989 | qp = cpu_to_cwq[get_cpu()]; |
| 990 | err = -ENODEV; |
| 991 | if (!qp) |
| 992 | goto out; |
| 993 | |
| 994 | spin_lock_irqsave(&qp->lock, flags); |
| 995 | |
| 996 | list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { |
| 997 | err = __n2_crypt_chunk(tfm, c, qp, encrypt); |
| 998 | if (err) |
| 999 | break; |
| 1000 | list_del(&c->entry); |
| 1001 | if (unlikely(c != &rctx->chunk)) |
| 1002 | kfree(c); |
| 1003 | } |
| 1004 | if (!err) { |
| 1005 | hv_ret = wait_for_tail(qp); |
| 1006 | if (hv_ret != HV_EOK) |
| 1007 | err = -EINVAL; |
| 1008 | } |
| 1009 | |
| 1010 | spin_unlock_irqrestore(&qp->lock, flags); |
| 1011 | |
Thomas Meyer | e27303b | 2011-08-15 15:20:19 +0800 | [diff] [blame] | 1012 | out: |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1013 | put_cpu(); |
| 1014 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1015 | n2_chunk_complete(req, NULL); |
| 1016 | return err; |
| 1017 | } |
| 1018 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1019 | static int n2_encrypt_ecb(struct skcipher_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1020 | { |
| 1021 | return n2_do_ecb(req, true); |
| 1022 | } |
| 1023 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1024 | static int n2_decrypt_ecb(struct skcipher_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1025 | { |
| 1026 | return n2_do_ecb(req, false); |
| 1027 | } |
| 1028 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1029 | static int n2_do_chaining(struct skcipher_request *req, bool encrypt) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1030 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1031 | struct n2_request_context *rctx = skcipher_request_ctx(req); |
| 1032 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1033 | unsigned long flags, hv_ret, iv_paddr; |
| 1034 | int err = n2_compute_chunks(req); |
| 1035 | struct n2_crypto_chunk *c, *tmp; |
| 1036 | struct spu_queue *qp; |
| 1037 | void *final_iv_addr; |
| 1038 | |
| 1039 | final_iv_addr = NULL; |
| 1040 | |
| 1041 | if (err) |
| 1042 | return err; |
| 1043 | |
| 1044 | qp = cpu_to_cwq[get_cpu()]; |
| 1045 | err = -ENODEV; |
| 1046 | if (!qp) |
| 1047 | goto out; |
| 1048 | |
| 1049 | spin_lock_irqsave(&qp->lock, flags); |
| 1050 | |
| 1051 | if (encrypt) { |
| 1052 | iv_paddr = __pa(rctx->walk.iv); |
| 1053 | list_for_each_entry_safe(c, tmp, &rctx->chunk_list, |
| 1054 | entry) { |
| 1055 | c->iv_paddr = iv_paddr; |
| 1056 | err = __n2_crypt_chunk(tfm, c, qp, true); |
| 1057 | if (err) |
| 1058 | break; |
| 1059 | iv_paddr = c->dest_final - rctx->walk.blocksize; |
| 1060 | list_del(&c->entry); |
| 1061 | if (unlikely(c != &rctx->chunk)) |
| 1062 | kfree(c); |
| 1063 | } |
| 1064 | final_iv_addr = __va(iv_paddr); |
| 1065 | } else { |
| 1066 | list_for_each_entry_safe_reverse(c, tmp, &rctx->chunk_list, |
| 1067 | entry) { |
| 1068 | if (c == &rctx->chunk) { |
| 1069 | iv_paddr = __pa(rctx->walk.iv); |
| 1070 | } else { |
| 1071 | iv_paddr = (tmp->arr[tmp->arr_len-1].src_paddr + |
| 1072 | tmp->arr[tmp->arr_len-1].src_len - |
| 1073 | rctx->walk.blocksize); |
| 1074 | } |
| 1075 | if (!final_iv_addr) { |
| 1076 | unsigned long pa; |
| 1077 | |
| 1078 | pa = (c->arr[c->arr_len-1].src_paddr + |
| 1079 | c->arr[c->arr_len-1].src_len - |
| 1080 | rctx->walk.blocksize); |
| 1081 | final_iv_addr = rctx->temp_iv; |
| 1082 | memcpy(rctx->temp_iv, __va(pa), |
| 1083 | rctx->walk.blocksize); |
| 1084 | } |
| 1085 | c->iv_paddr = iv_paddr; |
| 1086 | err = __n2_crypt_chunk(tfm, c, qp, false); |
| 1087 | if (err) |
| 1088 | break; |
| 1089 | list_del(&c->entry); |
| 1090 | if (unlikely(c != &rctx->chunk)) |
| 1091 | kfree(c); |
| 1092 | } |
| 1093 | } |
| 1094 | if (!err) { |
| 1095 | hv_ret = wait_for_tail(qp); |
| 1096 | if (hv_ret != HV_EOK) |
| 1097 | err = -EINVAL; |
| 1098 | } |
| 1099 | |
| 1100 | spin_unlock_irqrestore(&qp->lock, flags); |
| 1101 | |
Thomas Meyer | e27303b | 2011-08-15 15:20:19 +0800 | [diff] [blame] | 1102 | out: |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1103 | put_cpu(); |
| 1104 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1105 | n2_chunk_complete(req, err ? NULL : final_iv_addr); |
| 1106 | return err; |
| 1107 | } |
| 1108 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1109 | static int n2_encrypt_chaining(struct skcipher_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1110 | { |
| 1111 | return n2_do_chaining(req, true); |
| 1112 | } |
| 1113 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1114 | static int n2_decrypt_chaining(struct skcipher_request *req) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1115 | { |
| 1116 | return n2_do_chaining(req, false); |
| 1117 | } |
| 1118 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1119 | struct n2_skcipher_tmpl { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1120 | const char *name; |
| 1121 | const char *drv_name; |
| 1122 | u8 block_size; |
| 1123 | u8 enc_type; |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1124 | struct skcipher_alg skcipher; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1125 | }; |
| 1126 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1127 | static const struct n2_skcipher_tmpl skcipher_tmpls[] = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1128 | /* ARC4: only ECB is supported (chaining bits ignored) */ |
| 1129 | { .name = "ecb(arc4)", |
| 1130 | .drv_name = "ecb-arc4", |
| 1131 | .block_size = 1, |
| 1132 | .enc_type = (ENC_TYPE_ALG_RC4_STREAM | |
| 1133 | ENC_TYPE_CHAINING_ECB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1134 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1135 | .min_keysize = 1, |
| 1136 | .max_keysize = 256, |
| 1137 | .setkey = n2_arc4_setkey, |
| 1138 | .encrypt = n2_encrypt_ecb, |
| 1139 | .decrypt = n2_decrypt_ecb, |
| 1140 | }, |
| 1141 | }, |
| 1142 | |
| 1143 | /* DES: ECB CBC and CFB are supported */ |
| 1144 | { .name = "ecb(des)", |
| 1145 | .drv_name = "ecb-des", |
| 1146 | .block_size = DES_BLOCK_SIZE, |
| 1147 | .enc_type = (ENC_TYPE_ALG_DES | |
| 1148 | ENC_TYPE_CHAINING_ECB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1149 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1150 | .min_keysize = DES_KEY_SIZE, |
| 1151 | .max_keysize = DES_KEY_SIZE, |
| 1152 | .setkey = n2_des_setkey, |
| 1153 | .encrypt = n2_encrypt_ecb, |
| 1154 | .decrypt = n2_decrypt_ecb, |
| 1155 | }, |
| 1156 | }, |
| 1157 | { .name = "cbc(des)", |
| 1158 | .drv_name = "cbc-des", |
| 1159 | .block_size = DES_BLOCK_SIZE, |
| 1160 | .enc_type = (ENC_TYPE_ALG_DES | |
| 1161 | ENC_TYPE_CHAINING_CBC), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1162 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1163 | .ivsize = DES_BLOCK_SIZE, |
| 1164 | .min_keysize = DES_KEY_SIZE, |
| 1165 | .max_keysize = DES_KEY_SIZE, |
| 1166 | .setkey = n2_des_setkey, |
| 1167 | .encrypt = n2_encrypt_chaining, |
| 1168 | .decrypt = n2_decrypt_chaining, |
| 1169 | }, |
| 1170 | }, |
| 1171 | { .name = "cfb(des)", |
| 1172 | .drv_name = "cfb-des", |
| 1173 | .block_size = DES_BLOCK_SIZE, |
| 1174 | .enc_type = (ENC_TYPE_ALG_DES | |
| 1175 | ENC_TYPE_CHAINING_CFB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1176 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1177 | .min_keysize = DES_KEY_SIZE, |
| 1178 | .max_keysize = DES_KEY_SIZE, |
| 1179 | .setkey = n2_des_setkey, |
| 1180 | .encrypt = n2_encrypt_chaining, |
| 1181 | .decrypt = n2_decrypt_chaining, |
| 1182 | }, |
| 1183 | }, |
| 1184 | |
| 1185 | /* 3DES: ECB CBC and CFB are supported */ |
| 1186 | { .name = "ecb(des3_ede)", |
| 1187 | .drv_name = "ecb-3des", |
| 1188 | .block_size = DES_BLOCK_SIZE, |
| 1189 | .enc_type = (ENC_TYPE_ALG_3DES | |
| 1190 | ENC_TYPE_CHAINING_ECB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1191 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1192 | .min_keysize = 3 * DES_KEY_SIZE, |
| 1193 | .max_keysize = 3 * DES_KEY_SIZE, |
| 1194 | .setkey = n2_3des_setkey, |
| 1195 | .encrypt = n2_encrypt_ecb, |
| 1196 | .decrypt = n2_decrypt_ecb, |
| 1197 | }, |
| 1198 | }, |
| 1199 | { .name = "cbc(des3_ede)", |
| 1200 | .drv_name = "cbc-3des", |
| 1201 | .block_size = DES_BLOCK_SIZE, |
| 1202 | .enc_type = (ENC_TYPE_ALG_3DES | |
| 1203 | ENC_TYPE_CHAINING_CBC), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1204 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1205 | .ivsize = DES_BLOCK_SIZE, |
| 1206 | .min_keysize = 3 * DES_KEY_SIZE, |
| 1207 | .max_keysize = 3 * DES_KEY_SIZE, |
| 1208 | .setkey = n2_3des_setkey, |
| 1209 | .encrypt = n2_encrypt_chaining, |
| 1210 | .decrypt = n2_decrypt_chaining, |
| 1211 | }, |
| 1212 | }, |
| 1213 | { .name = "cfb(des3_ede)", |
| 1214 | .drv_name = "cfb-3des", |
| 1215 | .block_size = DES_BLOCK_SIZE, |
| 1216 | .enc_type = (ENC_TYPE_ALG_3DES | |
| 1217 | ENC_TYPE_CHAINING_CFB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1218 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1219 | .min_keysize = 3 * DES_KEY_SIZE, |
| 1220 | .max_keysize = 3 * DES_KEY_SIZE, |
| 1221 | .setkey = n2_3des_setkey, |
| 1222 | .encrypt = n2_encrypt_chaining, |
| 1223 | .decrypt = n2_decrypt_chaining, |
| 1224 | }, |
| 1225 | }, |
| 1226 | /* AES: ECB CBC and CTR are supported */ |
| 1227 | { .name = "ecb(aes)", |
| 1228 | .drv_name = "ecb-aes", |
| 1229 | .block_size = AES_BLOCK_SIZE, |
| 1230 | .enc_type = (ENC_TYPE_ALG_AES128 | |
| 1231 | ENC_TYPE_CHAINING_ECB), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1232 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1233 | .min_keysize = AES_MIN_KEY_SIZE, |
| 1234 | .max_keysize = AES_MAX_KEY_SIZE, |
| 1235 | .setkey = n2_aes_setkey, |
| 1236 | .encrypt = n2_encrypt_ecb, |
| 1237 | .decrypt = n2_decrypt_ecb, |
| 1238 | }, |
| 1239 | }, |
| 1240 | { .name = "cbc(aes)", |
| 1241 | .drv_name = "cbc-aes", |
| 1242 | .block_size = AES_BLOCK_SIZE, |
| 1243 | .enc_type = (ENC_TYPE_ALG_AES128 | |
| 1244 | ENC_TYPE_CHAINING_CBC), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1245 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1246 | .ivsize = AES_BLOCK_SIZE, |
| 1247 | .min_keysize = AES_MIN_KEY_SIZE, |
| 1248 | .max_keysize = AES_MAX_KEY_SIZE, |
| 1249 | .setkey = n2_aes_setkey, |
| 1250 | .encrypt = n2_encrypt_chaining, |
| 1251 | .decrypt = n2_decrypt_chaining, |
| 1252 | }, |
| 1253 | }, |
| 1254 | { .name = "ctr(aes)", |
| 1255 | .drv_name = "ctr-aes", |
| 1256 | .block_size = AES_BLOCK_SIZE, |
| 1257 | .enc_type = (ENC_TYPE_ALG_AES128 | |
| 1258 | ENC_TYPE_CHAINING_COUNTER), |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1259 | .skcipher = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1260 | .ivsize = AES_BLOCK_SIZE, |
| 1261 | .min_keysize = AES_MIN_KEY_SIZE, |
| 1262 | .max_keysize = AES_MAX_KEY_SIZE, |
| 1263 | .setkey = n2_aes_setkey, |
| 1264 | .encrypt = n2_encrypt_chaining, |
| 1265 | .decrypt = n2_encrypt_chaining, |
| 1266 | }, |
| 1267 | }, |
| 1268 | |
| 1269 | }; |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1270 | #define NUM_CIPHER_TMPLS ARRAY_SIZE(skcipher_tmpls) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1271 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1272 | static LIST_HEAD(skcipher_algs); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1273 | |
| 1274 | struct n2_hash_tmpl { |
| 1275 | const char *name; |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 1276 | const u8 *hash_zero; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1277 | const u32 *hash_init; |
| 1278 | u8 hw_op_hashsz; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1279 | u8 digest_size; |
| 1280 | u8 block_size; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1281 | u8 auth_type; |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1282 | u8 hmac_type; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1283 | }; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1284 | |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1285 | static const u32 n2_md5_init[MD5_HASH_WORDS] = { |
LABBE Corentin | d0bb9ee | 2015-05-17 12:54:16 +0200 | [diff] [blame] | 1286 | cpu_to_le32(MD5_H0), |
| 1287 | cpu_to_le32(MD5_H1), |
| 1288 | cpu_to_le32(MD5_H2), |
| 1289 | cpu_to_le32(MD5_H3), |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1290 | }; |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1291 | static const u32 n2_sha1_init[SHA1_DIGEST_SIZE / 4] = { |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1292 | SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4, |
| 1293 | }; |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1294 | static const u32 n2_sha256_init[SHA256_DIGEST_SIZE / 4] = { |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1295 | SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3, |
| 1296 | SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7, |
| 1297 | }; |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1298 | static const u32 n2_sha224_init[SHA256_DIGEST_SIZE / 4] = { |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1299 | SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3, |
| 1300 | SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7, |
| 1301 | }; |
| 1302 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1303 | static const struct n2_hash_tmpl hash_tmpls[] = { |
| 1304 | { .name = "md5", |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 1305 | .hash_zero = md5_zero_message_hash, |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1306 | .hash_init = n2_md5_init, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1307 | .auth_type = AUTH_TYPE_MD5, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1308 | .hmac_type = AUTH_TYPE_HMAC_MD5, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1309 | .hw_op_hashsz = MD5_DIGEST_SIZE, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1310 | .digest_size = MD5_DIGEST_SIZE, |
| 1311 | .block_size = MD5_HMAC_BLOCK_SIZE }, |
| 1312 | { .name = "sha1", |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 1313 | .hash_zero = sha1_zero_message_hash, |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1314 | .hash_init = n2_sha1_init, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1315 | .auth_type = AUTH_TYPE_SHA1, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1316 | .hmac_type = AUTH_TYPE_HMAC_SHA1, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1317 | .hw_op_hashsz = SHA1_DIGEST_SIZE, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1318 | .digest_size = SHA1_DIGEST_SIZE, |
| 1319 | .block_size = SHA1_BLOCK_SIZE }, |
| 1320 | { .name = "sha256", |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 1321 | .hash_zero = sha256_zero_message_hash, |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1322 | .hash_init = n2_sha256_init, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1323 | .auth_type = AUTH_TYPE_SHA256, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1324 | .hmac_type = AUTH_TYPE_HMAC_SHA256, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1325 | .hw_op_hashsz = SHA256_DIGEST_SIZE, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1326 | .digest_size = SHA256_DIGEST_SIZE, |
| 1327 | .block_size = SHA256_BLOCK_SIZE }, |
| 1328 | { .name = "sha224", |
LABBE Corentin | 8054b80 | 2015-12-17 13:45:40 +0100 | [diff] [blame] | 1329 | .hash_zero = sha224_zero_message_hash, |
Hans de Goede | 527aa89 | 2019-09-01 22:35:30 +0200 | [diff] [blame] | 1330 | .hash_init = n2_sha224_init, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1331 | .auth_type = AUTH_TYPE_SHA256, |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1332 | .hmac_type = AUTH_TYPE_RESERVED, |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1333 | .hw_op_hashsz = SHA256_DIGEST_SIZE, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1334 | .digest_size = SHA224_DIGEST_SIZE, |
| 1335 | .block_size = SHA224_BLOCK_SIZE }, |
| 1336 | }; |
| 1337 | #define NUM_HASH_TMPLS ARRAY_SIZE(hash_tmpls) |
| 1338 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1339 | static LIST_HEAD(ahash_algs); |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1340 | static LIST_HEAD(hmac_algs); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1341 | |
| 1342 | static int algs_registered; |
| 1343 | |
| 1344 | static void __n2_unregister_algs(void) |
| 1345 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1346 | struct n2_skcipher_alg *skcipher, *skcipher_tmp; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1347 | struct n2_ahash_alg *alg, *alg_tmp; |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1348 | struct n2_hmac_alg *hmac, *hmac_tmp; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1349 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1350 | list_for_each_entry_safe(skcipher, skcipher_tmp, &skcipher_algs, entry) { |
| 1351 | crypto_unregister_skcipher(&skcipher->skcipher); |
| 1352 | list_del(&skcipher->entry); |
| 1353 | kfree(skcipher); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1354 | } |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1355 | list_for_each_entry_safe(hmac, hmac_tmp, &hmac_algs, derived.entry) { |
| 1356 | crypto_unregister_ahash(&hmac->derived.alg); |
| 1357 | list_del(&hmac->derived.entry); |
| 1358 | kfree(hmac); |
| 1359 | } |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1360 | list_for_each_entry_safe(alg, alg_tmp, &ahash_algs, entry) { |
| 1361 | crypto_unregister_ahash(&alg->alg); |
| 1362 | list_del(&alg->entry); |
| 1363 | kfree(alg); |
| 1364 | } |
| 1365 | } |
| 1366 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1367 | static int n2_skcipher_init_tfm(struct crypto_skcipher *tfm) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1368 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1369 | crypto_skcipher_set_reqsize(tfm, sizeof(struct n2_request_context)); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1370 | return 0; |
| 1371 | } |
| 1372 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1373 | static int __n2_register_one_skcipher(const struct n2_skcipher_tmpl *tmpl) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1374 | { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1375 | struct n2_skcipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); |
| 1376 | struct skcipher_alg *alg; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1377 | int err; |
| 1378 | |
| 1379 | if (!p) |
| 1380 | return -ENOMEM; |
| 1381 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1382 | alg = &p->skcipher; |
| 1383 | *alg = tmpl->skcipher; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1384 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1385 | snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); |
| 1386 | snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name); |
| 1387 | alg->base.cra_priority = N2_CRA_PRIORITY; |
| 1388 | alg->base.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC; |
| 1389 | alg->base.cra_blocksize = tmpl->block_size; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1390 | p->enc_type = tmpl->enc_type; |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1391 | alg->base.cra_ctxsize = sizeof(struct n2_skcipher_context); |
| 1392 | alg->base.cra_module = THIS_MODULE; |
| 1393 | alg->init = n2_skcipher_init_tfm; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1394 | |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1395 | list_add(&p->entry, &skcipher_algs); |
| 1396 | err = crypto_register_skcipher(alg); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1397 | if (err) { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1398 | pr_err("%s alg registration failed\n", alg->base.cra_name); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1399 | list_del(&p->entry); |
| 1400 | kfree(p); |
David S. Miller | 3851110 | 2010-05-19 23:16:05 -0700 | [diff] [blame] | 1401 | } else { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1402 | pr_info("%s alg registered\n", alg->base.cra_name); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1403 | } |
| 1404 | return err; |
| 1405 | } |
| 1406 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1407 | static int __n2_register_one_hmac(struct n2_ahash_alg *n2ahash) |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1408 | { |
| 1409 | struct n2_hmac_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); |
| 1410 | struct ahash_alg *ahash; |
| 1411 | struct crypto_alg *base; |
| 1412 | int err; |
| 1413 | |
| 1414 | if (!p) |
| 1415 | return -ENOMEM; |
| 1416 | |
| 1417 | p->child_alg = n2ahash->alg.halg.base.cra_name; |
| 1418 | memcpy(&p->derived, n2ahash, sizeof(struct n2_ahash_alg)); |
| 1419 | INIT_LIST_HEAD(&p->derived.entry); |
| 1420 | |
| 1421 | ahash = &p->derived.alg; |
| 1422 | ahash->digest = n2_hmac_async_digest; |
| 1423 | ahash->setkey = n2_hmac_async_setkey; |
| 1424 | |
| 1425 | base = &ahash->halg.base; |
| 1426 | snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)", p->child_alg); |
| 1427 | snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "hmac-%s-n2", p->child_alg); |
| 1428 | |
| 1429 | base->cra_ctxsize = sizeof(struct n2_hmac_ctx); |
| 1430 | base->cra_init = n2_hmac_cra_init; |
| 1431 | base->cra_exit = n2_hmac_cra_exit; |
| 1432 | |
| 1433 | list_add(&p->derived.entry, &hmac_algs); |
| 1434 | err = crypto_register_ahash(ahash); |
| 1435 | if (err) { |
| 1436 | pr_err("%s alg registration failed\n", base->cra_name); |
| 1437 | list_del(&p->derived.entry); |
| 1438 | kfree(p); |
| 1439 | } else { |
| 1440 | pr_info("%s alg registered\n", base->cra_name); |
| 1441 | } |
| 1442 | return err; |
| 1443 | } |
| 1444 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1445 | static int __n2_register_one_ahash(const struct n2_hash_tmpl *tmpl) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1446 | { |
| 1447 | struct n2_ahash_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); |
| 1448 | struct hash_alg_common *halg; |
| 1449 | struct crypto_alg *base; |
| 1450 | struct ahash_alg *ahash; |
| 1451 | int err; |
| 1452 | |
| 1453 | if (!p) |
| 1454 | return -ENOMEM; |
| 1455 | |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1456 | p->hash_zero = tmpl->hash_zero; |
| 1457 | p->hash_init = tmpl->hash_init; |
| 1458 | p->auth_type = tmpl->auth_type; |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1459 | p->hmac_type = tmpl->hmac_type; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1460 | p->hw_op_hashsz = tmpl->hw_op_hashsz; |
| 1461 | p->digest_size = tmpl->digest_size; |
| 1462 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1463 | ahash = &p->alg; |
| 1464 | ahash->init = n2_hash_async_init; |
| 1465 | ahash->update = n2_hash_async_update; |
| 1466 | ahash->final = n2_hash_async_final; |
| 1467 | ahash->finup = n2_hash_async_finup; |
David S. Miller | 3a2c034 | 2010-05-22 02:45:56 -0700 | [diff] [blame] | 1468 | ahash->digest = n2_hash_async_digest; |
Kamil Konieczny | 378fe6f | 2018-01-18 19:34:01 +0100 | [diff] [blame] | 1469 | ahash->export = n2_hash_async_noexport; |
| 1470 | ahash->import = n2_hash_async_noimport; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1471 | |
| 1472 | halg = &ahash->halg; |
| 1473 | halg->digestsize = tmpl->digest_size; |
| 1474 | |
| 1475 | base = &halg->base; |
| 1476 | snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); |
| 1477 | snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->name); |
| 1478 | base->cra_priority = N2_CRA_PRIORITY; |
Eric Biggers | 6a38f622 | 2018-06-30 15:16:12 -0700 | [diff] [blame] | 1479 | base->cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | |
Nikos Mavrogiannopoulos | d912bb7 | 2011-11-01 13:39:56 +0100 | [diff] [blame] | 1480 | CRYPTO_ALG_NEED_FALLBACK; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1481 | base->cra_blocksize = tmpl->block_size; |
| 1482 | base->cra_ctxsize = sizeof(struct n2_hash_ctx); |
| 1483 | base->cra_module = THIS_MODULE; |
| 1484 | base->cra_init = n2_hash_cra_init; |
| 1485 | base->cra_exit = n2_hash_cra_exit; |
| 1486 | |
| 1487 | list_add(&p->entry, &ahash_algs); |
| 1488 | err = crypto_register_ahash(ahash); |
| 1489 | if (err) { |
David S. Miller | 3851110 | 2010-05-19 23:16:05 -0700 | [diff] [blame] | 1490 | pr_err("%s alg registration failed\n", base->cra_name); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1491 | list_del(&p->entry); |
| 1492 | kfree(p); |
David S. Miller | 3851110 | 2010-05-19 23:16:05 -0700 | [diff] [blame] | 1493 | } else { |
| 1494 | pr_info("%s alg registered\n", base->cra_name); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1495 | } |
David S. Miller | dc4ccfd | 2010-05-22 22:53:09 -0700 | [diff] [blame] | 1496 | if (!err && p->hmac_type != AUTH_TYPE_RESERVED) |
| 1497 | err = __n2_register_one_hmac(p); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1498 | return err; |
| 1499 | } |
| 1500 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1501 | static int n2_register_algs(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1502 | { |
| 1503 | int i, err = 0; |
| 1504 | |
| 1505 | mutex_lock(&spu_lock); |
| 1506 | if (algs_registered++) |
| 1507 | goto out; |
| 1508 | |
| 1509 | for (i = 0; i < NUM_HASH_TMPLS; i++) { |
| 1510 | err = __n2_register_one_ahash(&hash_tmpls[i]); |
| 1511 | if (err) { |
| 1512 | __n2_unregister_algs(); |
| 1513 | goto out; |
| 1514 | } |
| 1515 | } |
| 1516 | for (i = 0; i < NUM_CIPHER_TMPLS; i++) { |
Ard Biesheuvel | 23a6564 | 2019-11-09 18:09:47 +0100 | [diff] [blame] | 1517 | err = __n2_register_one_skcipher(&skcipher_tmpls[i]); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1518 | if (err) { |
| 1519 | __n2_unregister_algs(); |
| 1520 | goto out; |
| 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | out: |
| 1525 | mutex_unlock(&spu_lock); |
| 1526 | return err; |
| 1527 | } |
| 1528 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1529 | static void n2_unregister_algs(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1530 | { |
| 1531 | mutex_lock(&spu_lock); |
| 1532 | if (!--algs_registered) |
| 1533 | __n2_unregister_algs(); |
| 1534 | mutex_unlock(&spu_lock); |
| 1535 | } |
| 1536 | |
| 1537 | /* To map CWQ queues to interrupt sources, the hypervisor API provides |
| 1538 | * a devino. This isn't very useful to us because all of the |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1539 | * interrupts listed in the device_node have been translated to |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1540 | * Linux virtual IRQ cookie numbers. |
| 1541 | * |
| 1542 | * So we have to back-translate, going through the 'intr' and 'ino' |
| 1543 | * property tables of the n2cp MDESC node, matching it with the OF |
| 1544 | * 'interrupts' property entries, in order to to figure out which |
| 1545 | * devino goes to which already-translated IRQ. |
| 1546 | */ |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1547 | static int find_devino_index(struct platform_device *dev, struct spu_mdesc_info *ip, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1548 | unsigned long dev_ino) |
| 1549 | { |
| 1550 | const unsigned int *dev_intrs; |
| 1551 | unsigned int intr; |
| 1552 | int i; |
| 1553 | |
| 1554 | for (i = 0; i < ip->num_intrs; i++) { |
| 1555 | if (ip->ino_table[i].ino == dev_ino) |
| 1556 | break; |
| 1557 | } |
| 1558 | if (i == ip->num_intrs) |
| 1559 | return -ENODEV; |
| 1560 | |
| 1561 | intr = ip->ino_table[i].intr; |
| 1562 | |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 1563 | dev_intrs = of_get_property(dev->dev.of_node, "interrupts", NULL); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1564 | if (!dev_intrs) |
| 1565 | return -ENODEV; |
| 1566 | |
Grant Likely | 19e4875 | 2010-08-08 00:23:26 -0600 | [diff] [blame] | 1567 | for (i = 0; i < dev->archdata.num_irqs; i++) { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1568 | if (dev_intrs[i] == intr) |
| 1569 | return i; |
| 1570 | } |
| 1571 | |
| 1572 | return -ENODEV; |
| 1573 | } |
| 1574 | |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1575 | static int spu_map_ino(struct platform_device *dev, struct spu_mdesc_info *ip, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1576 | const char *irq_name, struct spu_queue *p, |
| 1577 | irq_handler_t handler) |
| 1578 | { |
| 1579 | unsigned long herr; |
| 1580 | int index; |
| 1581 | |
| 1582 | herr = sun4v_ncs_qhandle_to_devino(p->qhandle, &p->devino); |
| 1583 | if (herr) |
| 1584 | return -EINVAL; |
| 1585 | |
| 1586 | index = find_devino_index(dev, ip, p->devino); |
| 1587 | if (index < 0) |
| 1588 | return index; |
| 1589 | |
Grant Likely | 19e4875 | 2010-08-08 00:23:26 -0600 | [diff] [blame] | 1590 | p->irq = dev->archdata.irqs[index]; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1591 | |
| 1592 | sprintf(p->irq_name, "%s-%d", irq_name, index); |
| 1593 | |
Theodore Ts'o | 9751bfd | 2012-07-17 13:42:34 -0400 | [diff] [blame] | 1594 | return request_irq(p->irq, handler, 0, p->irq_name, p); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1595 | } |
| 1596 | |
| 1597 | static struct kmem_cache *queue_cache[2]; |
| 1598 | |
| 1599 | static void *new_queue(unsigned long q_type) |
| 1600 | { |
| 1601 | return kmem_cache_zalloc(queue_cache[q_type - 1], GFP_KERNEL); |
| 1602 | } |
| 1603 | |
| 1604 | static void free_queue(void *p, unsigned long q_type) |
| 1605 | { |
Amitoj Kaur Chawla | 150f6d4 | 2016-03-18 19:08:48 +0530 | [diff] [blame] | 1606 | kmem_cache_free(queue_cache[q_type - 1], p); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1607 | } |
| 1608 | |
| 1609 | static int queue_cache_init(void) |
| 1610 | { |
| 1611 | if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) |
| 1612 | queue_cache[HV_NCS_QTYPE_MAU - 1] = |
David S. Miller | 527b952 | 2010-05-22 00:50:12 -0700 | [diff] [blame] | 1613 | kmem_cache_create("mau_queue", |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1614 | (MAU_NUM_ENTRIES * |
| 1615 | MAU_ENTRY_SIZE), |
| 1616 | MAU_ENTRY_SIZE, 0, NULL); |
| 1617 | if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) |
| 1618 | return -ENOMEM; |
| 1619 | |
| 1620 | if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) |
| 1621 | queue_cache[HV_NCS_QTYPE_CWQ - 1] = |
| 1622 | kmem_cache_create("cwq_queue", |
| 1623 | (CWQ_NUM_ENTRIES * |
| 1624 | CWQ_ENTRY_SIZE), |
| 1625 | CWQ_ENTRY_SIZE, 0, NULL); |
| 1626 | if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) { |
| 1627 | kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); |
Jan Engelhardt | 203f450 | 2017-12-19 19:09:07 +0100 | [diff] [blame] | 1628 | queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1629 | return -ENOMEM; |
| 1630 | } |
| 1631 | return 0; |
| 1632 | } |
| 1633 | |
| 1634 | static void queue_cache_destroy(void) |
| 1635 | { |
| 1636 | kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); |
| 1637 | kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]); |
Jan Engelhardt | 203f450 | 2017-12-19 19:09:07 +0100 | [diff] [blame] | 1638 | queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; |
| 1639 | queue_cache[HV_NCS_QTYPE_CWQ - 1] = NULL; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1640 | } |
| 1641 | |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 1642 | static long spu_queue_register_workfn(void *arg) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1643 | { |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 1644 | struct spu_qreg *qr = arg; |
| 1645 | struct spu_queue *p = qr->queue; |
| 1646 | unsigned long q_type = qr->type; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1647 | unsigned long hv_ret; |
| 1648 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1649 | hv_ret = sun4v_ncs_qconf(q_type, __pa(p->q), |
| 1650 | CWQ_NUM_ENTRIES, &p->qhandle); |
| 1651 | if (!hv_ret) |
| 1652 | sun4v_ncs_sethead_marker(p->qhandle, 0); |
| 1653 | |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 1654 | return hv_ret ? -EINVAL : 0; |
| 1655 | } |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1656 | |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 1657 | static int spu_queue_register(struct spu_queue *p, unsigned long q_type) |
| 1658 | { |
| 1659 | int cpu = cpumask_any_and(&p->sharing, cpu_online_mask); |
| 1660 | struct spu_qreg qr = { .queue = p, .type = q_type }; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1661 | |
Thomas Gleixner | 73810a0 | 2017-04-13 10:20:23 +0200 | [diff] [blame] | 1662 | return work_on_cpu_safe(cpu, spu_queue_register_workfn, &qr); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1663 | } |
| 1664 | |
| 1665 | static int spu_queue_setup(struct spu_queue *p) |
| 1666 | { |
| 1667 | int err; |
| 1668 | |
| 1669 | p->q = new_queue(p->q_type); |
| 1670 | if (!p->q) |
| 1671 | return -ENOMEM; |
| 1672 | |
| 1673 | err = spu_queue_register(p, p->q_type); |
| 1674 | if (err) { |
| 1675 | free_queue(p->q, p->q_type); |
| 1676 | p->q = NULL; |
| 1677 | } |
| 1678 | |
| 1679 | return err; |
| 1680 | } |
| 1681 | |
| 1682 | static void spu_queue_destroy(struct spu_queue *p) |
| 1683 | { |
| 1684 | unsigned long hv_ret; |
| 1685 | |
| 1686 | if (!p->q) |
| 1687 | return; |
| 1688 | |
| 1689 | hv_ret = sun4v_ncs_qconf(p->q_type, p->qhandle, 0, &p->qhandle); |
| 1690 | |
| 1691 | if (!hv_ret) |
| 1692 | free_queue(p->q, p->q_type); |
| 1693 | } |
| 1694 | |
| 1695 | static void spu_list_destroy(struct list_head *list) |
| 1696 | { |
| 1697 | struct spu_queue *p, *n; |
| 1698 | |
| 1699 | list_for_each_entry_safe(p, n, list, list) { |
| 1700 | int i; |
| 1701 | |
| 1702 | for (i = 0; i < NR_CPUS; i++) { |
| 1703 | if (cpu_to_cwq[i] == p) |
| 1704 | cpu_to_cwq[i] = NULL; |
| 1705 | } |
| 1706 | |
| 1707 | if (p->irq) { |
| 1708 | free_irq(p->irq, p); |
| 1709 | p->irq = 0; |
| 1710 | } |
| 1711 | spu_queue_destroy(p); |
| 1712 | list_del(&p->list); |
| 1713 | kfree(p); |
| 1714 | } |
| 1715 | } |
| 1716 | |
| 1717 | /* Walk the backward arcs of a CWQ 'exec-unit' node, |
| 1718 | * gathering cpu membership information. |
| 1719 | */ |
| 1720 | static int spu_mdesc_walk_arcs(struct mdesc_handle *mdesc, |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1721 | struct platform_device *dev, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1722 | u64 node, struct spu_queue *p, |
| 1723 | struct spu_queue **table) |
| 1724 | { |
| 1725 | u64 arc; |
| 1726 | |
| 1727 | mdesc_for_each_arc(arc, mdesc, node, MDESC_ARC_TYPE_BACK) { |
| 1728 | u64 tgt = mdesc_arc_target(mdesc, arc); |
| 1729 | const char *name = mdesc_node_name(mdesc, tgt); |
| 1730 | const u64 *id; |
| 1731 | |
| 1732 | if (strcmp(name, "cpu")) |
| 1733 | continue; |
| 1734 | id = mdesc_get_property(mdesc, tgt, "id", NULL); |
| 1735 | if (table[*id] != NULL) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 1736 | dev_err(&dev->dev, "%pOF: SPU cpu slot already set.\n", |
| 1737 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1738 | return -EINVAL; |
| 1739 | } |
Rusty Russell | f9b531f | 2015-03-05 10:49:16 +1030 | [diff] [blame] | 1740 | cpumask_set_cpu(*id, &p->sharing); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1741 | table[*id] = p; |
| 1742 | } |
| 1743 | return 0; |
| 1744 | } |
| 1745 | |
| 1746 | /* Process an 'exec-unit' MDESC node of type 'cwq'. */ |
| 1747 | static int handle_exec_unit(struct spu_mdesc_info *ip, struct list_head *list, |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1748 | struct platform_device *dev, struct mdesc_handle *mdesc, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1749 | u64 node, const char *iname, unsigned long q_type, |
| 1750 | irq_handler_t handler, struct spu_queue **table) |
| 1751 | { |
| 1752 | struct spu_queue *p; |
| 1753 | int err; |
| 1754 | |
| 1755 | p = kzalloc(sizeof(struct spu_queue), GFP_KERNEL); |
| 1756 | if (!p) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 1757 | dev_err(&dev->dev, "%pOF: Could not allocate SPU queue.\n", |
| 1758 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1759 | return -ENOMEM; |
| 1760 | } |
| 1761 | |
Rusty Russell | f9b531f | 2015-03-05 10:49:16 +1030 | [diff] [blame] | 1762 | cpumask_clear(&p->sharing); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1763 | spin_lock_init(&p->lock); |
| 1764 | p->q_type = q_type; |
| 1765 | INIT_LIST_HEAD(&p->jobs); |
| 1766 | list_add(&p->list, list); |
| 1767 | |
| 1768 | err = spu_mdesc_walk_arcs(mdesc, dev, node, p, table); |
| 1769 | if (err) |
| 1770 | return err; |
| 1771 | |
| 1772 | err = spu_queue_setup(p); |
| 1773 | if (err) |
| 1774 | return err; |
| 1775 | |
| 1776 | return spu_map_ino(dev, ip, iname, p, handler); |
| 1777 | } |
| 1778 | |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1779 | static int spu_mdesc_scan(struct mdesc_handle *mdesc, struct platform_device *dev, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1780 | struct spu_mdesc_info *ip, struct list_head *list, |
| 1781 | const char *exec_name, unsigned long q_type, |
| 1782 | irq_handler_t handler, struct spu_queue **table) |
| 1783 | { |
| 1784 | int err = 0; |
| 1785 | u64 node; |
| 1786 | |
| 1787 | mdesc_for_each_node_by_name(mdesc, node, "exec-unit") { |
| 1788 | const char *type; |
| 1789 | |
| 1790 | type = mdesc_get_property(mdesc, node, "type", NULL); |
| 1791 | if (!type || strcmp(type, exec_name)) |
| 1792 | continue; |
| 1793 | |
| 1794 | err = handle_exec_unit(ip, list, dev, mdesc, node, |
| 1795 | exec_name, q_type, handler, table); |
| 1796 | if (err) { |
| 1797 | spu_list_destroy(list); |
| 1798 | break; |
| 1799 | } |
| 1800 | } |
| 1801 | |
| 1802 | return err; |
| 1803 | } |
| 1804 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1805 | static int get_irq_props(struct mdesc_handle *mdesc, u64 node, |
| 1806 | struct spu_mdesc_info *ip) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1807 | { |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 1808 | const u64 *ino; |
| 1809 | int ino_len; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1810 | int i; |
| 1811 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1812 | ino = mdesc_get_property(mdesc, node, "ino", &ino_len); |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 1813 | if (!ino) { |
| 1814 | printk("NO 'ino'\n"); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1815 | return -ENODEV; |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 1816 | } |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1817 | |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 1818 | ip->num_intrs = ino_len / sizeof(u64); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1819 | ip->ino_table = kzalloc((sizeof(struct ino_blob) * |
| 1820 | ip->num_intrs), |
| 1821 | GFP_KERNEL); |
| 1822 | if (!ip->ino_table) |
| 1823 | return -ENOMEM; |
| 1824 | |
| 1825 | for (i = 0; i < ip->num_intrs; i++) { |
| 1826 | struct ino_blob *b = &ip->ino_table[i]; |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 1827 | b->intr = i + 1; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1828 | b->ino = ino[i]; |
| 1829 | } |
| 1830 | |
| 1831 | return 0; |
| 1832 | } |
| 1833 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1834 | static int grab_mdesc_irq_props(struct mdesc_handle *mdesc, |
| 1835 | struct platform_device *dev, |
| 1836 | struct spu_mdesc_info *ip, |
| 1837 | const char *node_name) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1838 | { |
| 1839 | const unsigned int *reg; |
| 1840 | u64 node; |
| 1841 | |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 1842 | reg = of_get_property(dev->dev.of_node, "reg", NULL); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1843 | if (!reg) |
| 1844 | return -ENODEV; |
| 1845 | |
| 1846 | mdesc_for_each_node_by_name(mdesc, node, "virtual-device") { |
| 1847 | const char *name; |
| 1848 | const u64 *chdl; |
| 1849 | |
| 1850 | name = mdesc_get_property(mdesc, node, "name", NULL); |
| 1851 | if (!name || strcmp(name, node_name)) |
| 1852 | continue; |
| 1853 | chdl = mdesc_get_property(mdesc, node, "cfg-handle", NULL); |
| 1854 | if (!chdl || (*chdl != *reg)) |
| 1855 | continue; |
| 1856 | ip->cfg_handle = *chdl; |
| 1857 | return get_irq_props(mdesc, node, ip); |
| 1858 | } |
| 1859 | |
| 1860 | return -ENODEV; |
| 1861 | } |
| 1862 | |
| 1863 | static unsigned long n2_spu_hvapi_major; |
| 1864 | static unsigned long n2_spu_hvapi_minor; |
| 1865 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1866 | static int n2_spu_hvapi_register(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1867 | { |
| 1868 | int err; |
| 1869 | |
| 1870 | n2_spu_hvapi_major = 2; |
| 1871 | n2_spu_hvapi_minor = 0; |
| 1872 | |
| 1873 | err = sun4v_hvapi_register(HV_GRP_NCS, |
| 1874 | n2_spu_hvapi_major, |
| 1875 | &n2_spu_hvapi_minor); |
| 1876 | |
| 1877 | if (!err) |
| 1878 | pr_info("Registered NCS HVAPI version %lu.%lu\n", |
| 1879 | n2_spu_hvapi_major, |
| 1880 | n2_spu_hvapi_minor); |
| 1881 | |
| 1882 | return err; |
| 1883 | } |
| 1884 | |
| 1885 | static void n2_spu_hvapi_unregister(void) |
| 1886 | { |
| 1887 | sun4v_hvapi_unregister(HV_GRP_NCS); |
| 1888 | } |
| 1889 | |
| 1890 | static int global_ref; |
| 1891 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1892 | static int grab_global_resources(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1893 | { |
| 1894 | int err = 0; |
| 1895 | |
| 1896 | mutex_lock(&spu_lock); |
| 1897 | |
| 1898 | if (global_ref++) |
| 1899 | goto out; |
| 1900 | |
| 1901 | err = n2_spu_hvapi_register(); |
| 1902 | if (err) |
| 1903 | goto out; |
| 1904 | |
| 1905 | err = queue_cache_init(); |
| 1906 | if (err) |
| 1907 | goto out_hvapi_release; |
| 1908 | |
| 1909 | err = -ENOMEM; |
Kees Cook | 6396bb2 | 2018-06-12 14:03:40 -0700 | [diff] [blame] | 1910 | cpu_to_cwq = kcalloc(NR_CPUS, sizeof(struct spu_queue *), |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1911 | GFP_KERNEL); |
| 1912 | if (!cpu_to_cwq) |
| 1913 | goto out_queue_cache_destroy; |
| 1914 | |
Kees Cook | 6396bb2 | 2018-06-12 14:03:40 -0700 | [diff] [blame] | 1915 | cpu_to_mau = kcalloc(NR_CPUS, sizeof(struct spu_queue *), |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1916 | GFP_KERNEL); |
| 1917 | if (!cpu_to_mau) |
| 1918 | goto out_free_cwq_table; |
| 1919 | |
| 1920 | err = 0; |
| 1921 | |
| 1922 | out: |
| 1923 | if (err) |
| 1924 | global_ref--; |
| 1925 | mutex_unlock(&spu_lock); |
| 1926 | return err; |
| 1927 | |
| 1928 | out_free_cwq_table: |
| 1929 | kfree(cpu_to_cwq); |
| 1930 | cpu_to_cwq = NULL; |
| 1931 | |
| 1932 | out_queue_cache_destroy: |
| 1933 | queue_cache_destroy(); |
| 1934 | |
| 1935 | out_hvapi_release: |
| 1936 | n2_spu_hvapi_unregister(); |
| 1937 | goto out; |
| 1938 | } |
| 1939 | |
| 1940 | static void release_global_resources(void) |
| 1941 | { |
| 1942 | mutex_lock(&spu_lock); |
| 1943 | if (!--global_ref) { |
| 1944 | kfree(cpu_to_cwq); |
| 1945 | cpu_to_cwq = NULL; |
| 1946 | |
| 1947 | kfree(cpu_to_mau); |
| 1948 | cpu_to_mau = NULL; |
| 1949 | |
| 1950 | queue_cache_destroy(); |
| 1951 | n2_spu_hvapi_unregister(); |
| 1952 | } |
| 1953 | mutex_unlock(&spu_lock); |
| 1954 | } |
| 1955 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1956 | static struct n2_crypto *alloc_n2cp(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1957 | { |
| 1958 | struct n2_crypto *np = kzalloc(sizeof(struct n2_crypto), GFP_KERNEL); |
| 1959 | |
| 1960 | if (np) |
| 1961 | INIT_LIST_HEAD(&np->cwq_list); |
| 1962 | |
| 1963 | return np; |
| 1964 | } |
| 1965 | |
| 1966 | static void free_n2cp(struct n2_crypto *np) |
| 1967 | { |
Himanshu Jha | b8d3de8 | 2017-08-27 02:45:29 +0530 | [diff] [blame] | 1968 | kfree(np->cwq_info.ino_table); |
| 1969 | np->cwq_info.ino_table = NULL; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1970 | |
| 1971 | kfree(np); |
| 1972 | } |
| 1973 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1974 | static void n2_spu_driver_version(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1975 | { |
| 1976 | static int n2_spu_version_printed; |
| 1977 | |
| 1978 | if (n2_spu_version_printed++ == 0) |
| 1979 | pr_info("%s", version); |
| 1980 | } |
| 1981 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 1982 | static int n2_crypto_probe(struct platform_device *dev) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1983 | { |
| 1984 | struct mdesc_handle *mdesc; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1985 | struct n2_crypto *np; |
| 1986 | int err; |
| 1987 | |
| 1988 | n2_spu_driver_version(); |
| 1989 | |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 1990 | pr_info("Found N2CP at %pOF\n", dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1991 | |
| 1992 | np = alloc_n2cp(); |
| 1993 | if (!np) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 1994 | dev_err(&dev->dev, "%pOF: Unable to allocate n2cp.\n", |
| 1995 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 1996 | return -ENOMEM; |
| 1997 | } |
| 1998 | |
| 1999 | err = grab_global_resources(); |
| 2000 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2001 | dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", |
| 2002 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2003 | goto out_free_n2cp; |
| 2004 | } |
| 2005 | |
| 2006 | mdesc = mdesc_grab(); |
| 2007 | |
| 2008 | if (!mdesc) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2009 | dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", |
| 2010 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2011 | err = -ENODEV; |
| 2012 | goto out_free_global; |
| 2013 | } |
| 2014 | err = grab_mdesc_irq_props(mdesc, dev, &np->cwq_info, "n2cp"); |
| 2015 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2016 | dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", |
| 2017 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2018 | mdesc_release(mdesc); |
| 2019 | goto out_free_global; |
| 2020 | } |
| 2021 | |
| 2022 | err = spu_mdesc_scan(mdesc, dev, &np->cwq_info, &np->cwq_list, |
| 2023 | "cwq", HV_NCS_QTYPE_CWQ, cwq_intr, |
| 2024 | cpu_to_cwq); |
| 2025 | mdesc_release(mdesc); |
| 2026 | |
| 2027 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2028 | dev_err(&dev->dev, "%pOF: CWQ MDESC scan failed.\n", |
| 2029 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2030 | goto out_free_global; |
| 2031 | } |
| 2032 | |
| 2033 | err = n2_register_algs(); |
| 2034 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2035 | dev_err(&dev->dev, "%pOF: Unable to register algorithms.\n", |
| 2036 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2037 | goto out_free_spu_list; |
| 2038 | } |
| 2039 | |
| 2040 | dev_set_drvdata(&dev->dev, np); |
| 2041 | |
| 2042 | return 0; |
| 2043 | |
| 2044 | out_free_spu_list: |
| 2045 | spu_list_destroy(&np->cwq_list); |
| 2046 | |
| 2047 | out_free_global: |
| 2048 | release_global_resources(); |
| 2049 | |
| 2050 | out_free_n2cp: |
| 2051 | free_n2cp(np); |
| 2052 | |
| 2053 | return err; |
| 2054 | } |
| 2055 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2056 | static int n2_crypto_remove(struct platform_device *dev) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2057 | { |
| 2058 | struct n2_crypto *np = dev_get_drvdata(&dev->dev); |
| 2059 | |
| 2060 | n2_unregister_algs(); |
| 2061 | |
| 2062 | spu_list_destroy(&np->cwq_list); |
| 2063 | |
| 2064 | release_global_resources(); |
| 2065 | |
| 2066 | free_n2cp(np); |
| 2067 | |
| 2068 | return 0; |
| 2069 | } |
| 2070 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2071 | static struct n2_mau *alloc_ncp(void) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2072 | { |
| 2073 | struct n2_mau *mp = kzalloc(sizeof(struct n2_mau), GFP_KERNEL); |
| 2074 | |
| 2075 | if (mp) |
| 2076 | INIT_LIST_HEAD(&mp->mau_list); |
| 2077 | |
| 2078 | return mp; |
| 2079 | } |
| 2080 | |
| 2081 | static void free_ncp(struct n2_mau *mp) |
| 2082 | { |
Himanshu Jha | b8d3de8 | 2017-08-27 02:45:29 +0530 | [diff] [blame] | 2083 | kfree(mp->mau_info.ino_table); |
| 2084 | mp->mau_info.ino_table = NULL; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2085 | |
| 2086 | kfree(mp); |
| 2087 | } |
| 2088 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2089 | static int n2_mau_probe(struct platform_device *dev) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2090 | { |
| 2091 | struct mdesc_handle *mdesc; |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2092 | struct n2_mau *mp; |
| 2093 | int err; |
| 2094 | |
| 2095 | n2_spu_driver_version(); |
| 2096 | |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2097 | pr_info("Found NCP at %pOF\n", dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2098 | |
| 2099 | mp = alloc_ncp(); |
| 2100 | if (!mp) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2101 | dev_err(&dev->dev, "%pOF: Unable to allocate ncp.\n", |
| 2102 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2103 | return -ENOMEM; |
| 2104 | } |
| 2105 | |
| 2106 | err = grab_global_resources(); |
| 2107 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2108 | dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", |
| 2109 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2110 | goto out_free_ncp; |
| 2111 | } |
| 2112 | |
| 2113 | mdesc = mdesc_grab(); |
| 2114 | |
| 2115 | if (!mdesc) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2116 | dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", |
| 2117 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2118 | err = -ENODEV; |
| 2119 | goto out_free_global; |
| 2120 | } |
| 2121 | |
| 2122 | err = grab_mdesc_irq_props(mdesc, dev, &mp->mau_info, "ncp"); |
| 2123 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2124 | dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", |
| 2125 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2126 | mdesc_release(mdesc); |
| 2127 | goto out_free_global; |
| 2128 | } |
| 2129 | |
| 2130 | err = spu_mdesc_scan(mdesc, dev, &mp->mau_info, &mp->mau_list, |
| 2131 | "mau", HV_NCS_QTYPE_MAU, mau_intr, |
| 2132 | cpu_to_mau); |
| 2133 | mdesc_release(mdesc); |
| 2134 | |
| 2135 | if (err) { |
Rob Herring | b2e870f | 2017-07-18 16:42:56 -0500 | [diff] [blame] | 2136 | dev_err(&dev->dev, "%pOF: MAU MDESC scan failed.\n", |
| 2137 | dev->dev.of_node); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2138 | goto out_free_global; |
| 2139 | } |
| 2140 | |
| 2141 | dev_set_drvdata(&dev->dev, mp); |
| 2142 | |
| 2143 | return 0; |
| 2144 | |
| 2145 | out_free_global: |
| 2146 | release_global_resources(); |
| 2147 | |
| 2148 | out_free_ncp: |
| 2149 | free_ncp(mp); |
| 2150 | |
| 2151 | return err; |
| 2152 | } |
| 2153 | |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2154 | static int n2_mau_remove(struct platform_device *dev) |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2155 | { |
| 2156 | struct n2_mau *mp = dev_get_drvdata(&dev->dev); |
| 2157 | |
| 2158 | spu_list_destroy(&mp->mau_list); |
| 2159 | |
| 2160 | release_global_resources(); |
| 2161 | |
| 2162 | free_ncp(mp); |
| 2163 | |
| 2164 | return 0; |
| 2165 | } |
| 2166 | |
Arvind Yadav | 4914b90 | 2017-06-15 17:28:10 +0530 | [diff] [blame] | 2167 | static const struct of_device_id n2_crypto_match[] = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2168 | { |
| 2169 | .name = "n2cp", |
| 2170 | .compatible = "SUNW,n2-cwq", |
| 2171 | }, |
| 2172 | { |
| 2173 | .name = "n2cp", |
| 2174 | .compatible = "SUNW,vf-cwq", |
| 2175 | }, |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 2176 | { |
| 2177 | .name = "n2cp", |
| 2178 | .compatible = "SUNW,kt-cwq", |
| 2179 | }, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2180 | {}, |
| 2181 | }; |
| 2182 | |
| 2183 | MODULE_DEVICE_TABLE(of, n2_crypto_match); |
| 2184 | |
Grant Likely | 4ebb24f | 2011-02-22 20:01:33 -0700 | [diff] [blame] | 2185 | static struct platform_driver n2_crypto_driver = { |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 2186 | .driver = { |
| 2187 | .name = "n2cp", |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 2188 | .of_match_table = n2_crypto_match, |
| 2189 | }, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2190 | .probe = n2_crypto_probe, |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2191 | .remove = n2_crypto_remove, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2192 | }; |
| 2193 | |
Arvind Yadav | 4914b90 | 2017-06-15 17:28:10 +0530 | [diff] [blame] | 2194 | static const struct of_device_id n2_mau_match[] = { |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2195 | { |
| 2196 | .name = "ncp", |
| 2197 | .compatible = "SUNW,n2-mau", |
| 2198 | }, |
| 2199 | { |
| 2200 | .name = "ncp", |
| 2201 | .compatible = "SUNW,vf-mau", |
| 2202 | }, |
David S. Miller | eb7caf3 | 2011-07-28 01:30:07 -0700 | [diff] [blame] | 2203 | { |
| 2204 | .name = "ncp", |
| 2205 | .compatible = "SUNW,kt-mau", |
| 2206 | }, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2207 | {}, |
| 2208 | }; |
| 2209 | |
| 2210 | MODULE_DEVICE_TABLE(of, n2_mau_match); |
| 2211 | |
Grant Likely | 4ebb24f | 2011-02-22 20:01:33 -0700 | [diff] [blame] | 2212 | static struct platform_driver n2_mau_driver = { |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 2213 | .driver = { |
| 2214 | .name = "ncp", |
David S. Miller | ff6c734 | 2010-05-25 17:37:08 -0700 | [diff] [blame] | 2215 | .of_match_table = n2_mau_match, |
| 2216 | }, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2217 | .probe = n2_mau_probe, |
Greg Kroah-Hartman | 49cfe4d | 2012-12-21 13:14:09 -0800 | [diff] [blame] | 2218 | .remove = n2_mau_remove, |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2219 | }; |
| 2220 | |
Thierry Reding | a103a75 | 2015-12-02 17:16:36 +0100 | [diff] [blame] | 2221 | static struct platform_driver * const drivers[] = { |
| 2222 | &n2_crypto_driver, |
| 2223 | &n2_mau_driver, |
| 2224 | }; |
| 2225 | |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2226 | static int __init n2_init(void) |
| 2227 | { |
Thierry Reding | a103a75 | 2015-12-02 17:16:36 +0100 | [diff] [blame] | 2228 | return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2229 | } |
| 2230 | |
| 2231 | static void __exit n2_exit(void) |
| 2232 | { |
Thierry Reding | a103a75 | 2015-12-02 17:16:36 +0100 | [diff] [blame] | 2233 | platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); |
David S. Miller | 0a625fd2 | 2010-05-19 14:14:04 +1000 | [diff] [blame] | 2234 | } |
| 2235 | |
| 2236 | module_init(n2_init); |
| 2237 | module_exit(n2_exit); |