AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1 | /* |
| 2 | * QTI Crypto Engine driver. |
| 3 | * |
| 4 | * Copyright (c) 2012-2017, The Linux Foundation. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 and |
| 8 | * only version 2 as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | #define pr_fmt(fmt) "QCE50: %s: " fmt, __func__ |
| 16 | |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/mod_devicetable.h> |
| 21 | #include <linux/device.h> |
| 22 | #include <linux/clk.h> |
| 23 | #include <linux/err.h> |
| 24 | #include <linux/dma-mapping.h> |
| 25 | #include <linux/io.h> |
| 26 | #include <linux/platform_device.h> |
| 27 | #include <linux/spinlock.h> |
| 28 | #include <linux/delay.h> |
| 29 | #include <linux/crypto.h> |
| 30 | #include <linux/bitops.h> |
AnilKumar Chimata | 9abc7e4 | 2017-04-07 16:27:29 -0700 | [diff] [blame] | 31 | #include <linux/clk/qcom.h> |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 32 | #include <linux/qcrypto.h> |
| 33 | #include <crypto/hash.h> |
| 34 | #include <crypto/sha.h> |
| 35 | #include <soc/qcom/socinfo.h> |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 36 | #include <asm/dma-iommu.h> |
| 37 | #include <linux/iommu.h> |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 38 | |
| 39 | #include "qce.h" |
| 40 | #include "qce50.h" |
| 41 | #include "qcryptohw_50.h" |
| 42 | #include "qce_ota.h" |
| 43 | |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 44 | #define CRYPTO_SMMU_IOVA_START 0x10000000 |
| 45 | #define CRYPTO_SMMU_IOVA_SIZE 0x40000000 |
| 46 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 47 | #define CRYPTO_CONFIG_RESET 0xE01EF |
| 48 | #define MAX_SPS_DESC_FIFO_SIZE 0xfff0 |
| 49 | #define QCE_MAX_NUM_DSCR 0x200 |
| 50 | #define QCE_SECTOR_SIZE 0x200 |
| 51 | #define CE_CLK_100MHZ 100000000 |
| 52 | #define CE_CLK_DIV 1000000 |
| 53 | |
| 54 | #define CRYPTO_CORE_MAJOR_VER_NUM 0x05 |
| 55 | #define CRYPTO_CORE_MINOR_VER_NUM 0x03 |
| 56 | #define CRYPTO_CORE_STEP_VER_NUM 0x1 |
| 57 | |
| 58 | #define CRYPTO_REQ_USER_PAT 0xdead0000 |
| 59 | |
| 60 | static DEFINE_MUTEX(bam_register_lock); |
| 61 | static DEFINE_MUTEX(qce_iomap_mutex); |
| 62 | |
| 63 | struct bam_registration_info { |
| 64 | struct list_head qlist; |
| 65 | unsigned long handle; |
| 66 | uint32_t cnt; |
| 67 | uint32_t bam_mem; |
| 68 | void __iomem *bam_iobase; |
| 69 | bool support_cmd_dscr; |
| 70 | }; |
| 71 | static LIST_HEAD(qce50_bam_list); |
| 72 | |
| 73 | /* Used to determine the mode */ |
| 74 | #define MAX_BUNCH_MODE_REQ 2 |
| 75 | /* Max number of request supported */ |
| 76 | #define MAX_QCE_BAM_REQ 8 |
| 77 | /* Interrupt flag will be set for every SET_INTR_AT_REQ request */ |
| 78 | #define SET_INTR_AT_REQ (MAX_QCE_BAM_REQ / 2) |
| 79 | /* To create extra request space to hold dummy request */ |
| 80 | #define MAX_QCE_BAM_REQ_WITH_DUMMY_REQ (MAX_QCE_BAM_REQ + 1) |
| 81 | /* Allocate the memory for MAX_QCE_BAM_REQ + 1 (for dummy request) */ |
| 82 | #define MAX_QCE_ALLOC_BAM_REQ MAX_QCE_BAM_REQ_WITH_DUMMY_REQ |
| 83 | /* QCE driver modes */ |
| 84 | #define IN_INTERRUPT_MODE 0 |
| 85 | #define IN_BUNCH_MODE 1 |
| 86 | /* Dummy request data length */ |
| 87 | #define DUMMY_REQ_DATA_LEN 64 |
| 88 | /* Delay timer to expire when in bunch mode */ |
| 89 | #define DELAY_IN_JIFFIES 5 |
| 90 | /* Index to point the dummy request */ |
| 91 | #define DUMMY_REQ_INDEX MAX_QCE_BAM_REQ |
| 92 | |
| 93 | #define TOTAL_IOVEC_SPACE_PER_PIPE (QCE_MAX_NUM_DSCR * sizeof(struct sps_iovec)) |
| 94 | |
| 95 | enum qce_owner { |
| 96 | QCE_OWNER_NONE = 0, |
| 97 | QCE_OWNER_CLIENT = 1, |
| 98 | QCE_OWNER_TIMEOUT = 2 |
| 99 | }; |
| 100 | |
| 101 | struct dummy_request { |
| 102 | struct qce_sha_req sreq; |
| 103 | struct scatterlist sg; |
| 104 | struct ahash_request areq; |
| 105 | }; |
| 106 | |
| 107 | /* |
| 108 | * CE HW device structure. |
| 109 | * Each engine has an instance of the structure. |
| 110 | * Each engine can only handle one crypto operation at one time. It is up to |
| 111 | * the sw above to ensure single threading of operation on an engine. |
| 112 | */ |
| 113 | struct qce_device { |
| 114 | struct device *pdev; /* Handle to platform_device structure */ |
| 115 | struct bam_registration_info *pbam; |
| 116 | |
| 117 | unsigned char *coh_vmem; /* Allocated coherent virtual memory */ |
| 118 | dma_addr_t coh_pmem; /* Allocated coherent physical memory */ |
| 119 | int memsize; /* Memory allocated */ |
| 120 | unsigned char *iovec_vmem; /* Allocate iovec virtual memory */ |
| 121 | int iovec_memsize; /* Memory allocated */ |
| 122 | uint32_t bam_mem; /* bam physical address, from DT */ |
| 123 | uint32_t bam_mem_size; /* bam io size, from DT */ |
| 124 | int is_shared; /* CE HW is shared */ |
| 125 | bool support_cmd_dscr; |
| 126 | bool support_hw_key; |
| 127 | bool support_clk_mgmt_sus_res; |
| 128 | bool support_only_core_src_clk; |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 129 | bool request_bw_before_clk; |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 130 | |
| 131 | void __iomem *iobase; /* Virtual io base of CE HW */ |
| 132 | unsigned int phy_iobase; /* Physical io base of CE HW */ |
| 133 | |
| 134 | struct clk *ce_core_src_clk; /* Handle to CE src clk*/ |
| 135 | struct clk *ce_core_clk; /* Handle to CE clk */ |
| 136 | struct clk *ce_clk; /* Handle to CE clk */ |
| 137 | struct clk *ce_bus_clk; /* Handle to CE AXI clk*/ |
| 138 | bool no_get_around; |
| 139 | bool no_ccm_mac_status_get_around; |
| 140 | unsigned int ce_opp_freq_hz; |
| 141 | bool use_sw_aes_cbc_ecb_ctr_algo; |
| 142 | bool use_sw_aead_algo; |
| 143 | bool use_sw_aes_xts_algo; |
| 144 | bool use_sw_ahash_algo; |
| 145 | bool use_sw_hmac_algo; |
| 146 | bool use_sw_aes_ccm_algo; |
| 147 | uint32_t engines_avail; |
| 148 | struct qce_ce_cfg_reg_setting reg; |
| 149 | struct ce_bam_info ce_bam_info; |
| 150 | struct ce_request_info ce_request_info[MAX_QCE_ALLOC_BAM_REQ]; |
| 151 | unsigned int ce_request_index; |
| 152 | enum qce_owner owner; |
| 153 | atomic_t no_of_queued_req; |
| 154 | struct timer_list timer; |
| 155 | struct dummy_request dummyreq; |
| 156 | unsigned int mode; |
| 157 | unsigned int intr_cadence; |
| 158 | unsigned int dev_no; |
| 159 | struct qce_driver_stats qce_stats; |
| 160 | atomic_t bunch_cmd_seq; |
| 161 | atomic_t last_intr_seq; |
| 162 | bool cadence_flag; |
| 163 | uint8_t *dummyreq_in_buf; |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 164 | struct dma_iommu_mapping *smmu_mapping; |
| 165 | bool bypass_s1_smmu; |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 166 | }; |
| 167 | |
| 168 | static void print_notify_debug(struct sps_event_notify *notify); |
| 169 | static void _sps_producer_callback(struct sps_event_notify *notify); |
| 170 | static int qce_dummy_req(struct qce_device *pce_dev); |
| 171 | |
| 172 | static int _qce50_disp_stats; |
| 173 | |
| 174 | /* Standard initialization vector for SHA-1, source: FIPS 180-2 */ |
| 175 | static uint32_t _std_init_vector_sha1[] = { |
| 176 | 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 |
| 177 | }; |
| 178 | |
| 179 | /* Standard initialization vector for SHA-256, source: FIPS 180-2 */ |
| 180 | static uint32_t _std_init_vector_sha256[] = { |
| 181 | 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, |
| 182 | 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 |
| 183 | }; |
| 184 | |
| 185 | static void _byte_stream_to_net_words(uint32_t *iv, unsigned char *b, |
| 186 | unsigned int len) |
| 187 | { |
| 188 | unsigned int n; |
| 189 | |
| 190 | n = len / sizeof(uint32_t); |
| 191 | for (; n > 0; n--) { |
| 192 | *iv = ((*b << 24) & 0xff000000) | |
| 193 | (((*(b+1)) << 16) & 0xff0000) | |
| 194 | (((*(b+2)) << 8) & 0xff00) | |
| 195 | (*(b+3) & 0xff); |
| 196 | b += sizeof(uint32_t); |
| 197 | iv++; |
| 198 | } |
| 199 | |
| 200 | n = len % sizeof(uint32_t); |
| 201 | if (n == 3) { |
| 202 | *iv = ((*b << 24) & 0xff000000) | |
| 203 | (((*(b+1)) << 16) & 0xff0000) | |
| 204 | (((*(b+2)) << 8) & 0xff00); |
| 205 | } else if (n == 2) { |
| 206 | *iv = ((*b << 24) & 0xff000000) | |
| 207 | (((*(b+1)) << 16) & 0xff0000); |
| 208 | } else if (n == 1) { |
| 209 | *iv = ((*b << 24) & 0xff000000); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | static void _byte_stream_swap_to_net_words(uint32_t *iv, unsigned char *b, |
| 214 | unsigned int len) |
| 215 | { |
| 216 | unsigned int i, j; |
| 217 | unsigned char swap_iv[AES_IV_LENGTH]; |
| 218 | |
| 219 | memset(swap_iv, 0, AES_IV_LENGTH); |
| 220 | for (i = (AES_IV_LENGTH-len), j = len-1; i < AES_IV_LENGTH; i++, j--) |
| 221 | swap_iv[i] = b[j]; |
| 222 | _byte_stream_to_net_words(iv, swap_iv, AES_IV_LENGTH); |
| 223 | } |
| 224 | |
| 225 | static int count_sg(struct scatterlist *sg, int nbytes) |
| 226 | { |
| 227 | int i; |
| 228 | |
| 229 | for (i = 0; nbytes > 0; i++, sg = sg_next(sg)) |
| 230 | nbytes -= sg->length; |
| 231 | return i; |
| 232 | } |
| 233 | |
| 234 | static int qce_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, |
| 235 | enum dma_data_direction direction) |
| 236 | { |
| 237 | int i; |
| 238 | |
| 239 | for (i = 0; i < nents; ++i) { |
| 240 | dma_map_sg(dev, sg, 1, direction); |
| 241 | sg = sg_next(sg); |
| 242 | } |
| 243 | |
| 244 | return nents; |
| 245 | } |
| 246 | |
| 247 | static int qce_dma_unmap_sg(struct device *dev, struct scatterlist *sg, |
| 248 | int nents, enum dma_data_direction direction) |
| 249 | { |
| 250 | int i; |
| 251 | |
| 252 | for (i = 0; i < nents; ++i) { |
| 253 | dma_unmap_sg(dev, sg, 1, direction); |
| 254 | sg = sg_next(sg); |
| 255 | } |
| 256 | |
| 257 | return nents; |
| 258 | } |
| 259 | |
| 260 | static int _probe_ce_engine(struct qce_device *pce_dev) |
| 261 | { |
| 262 | unsigned int rev; |
| 263 | unsigned int maj_rev, min_rev, step_rev; |
| 264 | |
| 265 | rev = readl_relaxed(pce_dev->iobase + CRYPTO_VERSION_REG); |
| 266 | /* |
| 267 | * Ensure previous instructions (setting the GO register) |
| 268 | * was completed before checking the version. |
| 269 | */ |
| 270 | mb(); |
| 271 | maj_rev = (rev & CRYPTO_CORE_MAJOR_REV_MASK) >> CRYPTO_CORE_MAJOR_REV; |
| 272 | min_rev = (rev & CRYPTO_CORE_MINOR_REV_MASK) >> CRYPTO_CORE_MINOR_REV; |
| 273 | step_rev = (rev & CRYPTO_CORE_STEP_REV_MASK) >> CRYPTO_CORE_STEP_REV; |
| 274 | |
| 275 | if (maj_rev != CRYPTO_CORE_MAJOR_VER_NUM) { |
| 276 | pr_err("Unsupported QTI crypto device at 0x%x, rev %d.%d.%d\n", |
| 277 | pce_dev->phy_iobase, maj_rev, min_rev, step_rev); |
| 278 | return -EIO; |
| 279 | } |
| 280 | |
| 281 | /* |
| 282 | * The majority of crypto HW bugs have been fixed in 5.3.0 and |
| 283 | * above. That allows a single sps transfer of consumer |
| 284 | * pipe, and a single sps transfer of producer pipe |
| 285 | * for a crypto request. no_get_around flag indicates this. |
| 286 | * |
| 287 | * In 5.3.1, the CCM MAC_FAILED in result dump issue is |
| 288 | * fixed. no_ccm_mac_status_get_around flag indicates this. |
| 289 | */ |
| 290 | pce_dev->no_get_around = (min_rev >= |
| 291 | CRYPTO_CORE_MINOR_VER_NUM) ? true : false; |
| 292 | if (min_rev > CRYPTO_CORE_MINOR_VER_NUM) |
| 293 | pce_dev->no_ccm_mac_status_get_around = true; |
| 294 | else if ((min_rev == CRYPTO_CORE_MINOR_VER_NUM) && |
| 295 | (step_rev >= CRYPTO_CORE_STEP_VER_NUM)) |
| 296 | pce_dev->no_ccm_mac_status_get_around = true; |
| 297 | else |
| 298 | pce_dev->no_ccm_mac_status_get_around = false; |
| 299 | |
| 300 | pce_dev->ce_bam_info.minor_version = min_rev; |
| 301 | |
| 302 | pce_dev->engines_avail = readl_relaxed(pce_dev->iobase + |
| 303 | CRYPTO_ENGINES_AVAIL); |
| 304 | dev_info(pce_dev->pdev, "QTI Crypto %d.%d.%d device found @0x%x\n", |
| 305 | maj_rev, min_rev, step_rev, pce_dev->phy_iobase); |
| 306 | |
| 307 | pce_dev->ce_bam_info.ce_burst_size = MAX_CE_BAM_BURST_SIZE; |
| 308 | |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 309 | dev_info(pce_dev->pdev, "CE device = %#x IO base, CE = %pK Consumer (IN) PIPE %d,\nProducer (OUT) PIPE %d IO base BAM = %pK\nBAM IRQ %d Engines Availability = %#x\n", |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 310 | pce_dev->ce_bam_info.ce_device, pce_dev->iobase, |
| 311 | pce_dev->ce_bam_info.dest_pipe_index, |
| 312 | pce_dev->ce_bam_info.src_pipe_index, |
| 313 | pce_dev->ce_bam_info.bam_iobase, |
| 314 | pce_dev->ce_bam_info.bam_irq, pce_dev->engines_avail); |
| 315 | return 0; |
| 316 | }; |
| 317 | |
| 318 | static struct qce_cmdlist_info *_ce_get_hash_cmdlistinfo( |
| 319 | struct qce_device *pce_dev, |
| 320 | int req_info, struct qce_sha_req *sreq) |
| 321 | { |
| 322 | struct ce_sps_data *pce_sps_data; |
| 323 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 324 | |
| 325 | pce_sps_data = &pce_dev->ce_request_info[req_info].ce_sps; |
| 326 | cmdlistptr = &pce_sps_data->cmdlistptr; |
| 327 | switch (sreq->alg) { |
| 328 | case QCE_HASH_SHA1: |
| 329 | return &cmdlistptr->auth_sha1; |
| 330 | case QCE_HASH_SHA256: |
| 331 | return &cmdlistptr->auth_sha256; |
| 332 | case QCE_HASH_SHA1_HMAC: |
| 333 | return &cmdlistptr->auth_sha1_hmac; |
| 334 | case QCE_HASH_SHA256_HMAC: |
| 335 | return &cmdlistptr->auth_sha256_hmac; |
| 336 | case QCE_HASH_AES_CMAC: |
| 337 | if (sreq->authklen == AES128_KEY_SIZE) |
| 338 | return &cmdlistptr->auth_aes_128_cmac; |
| 339 | return &cmdlistptr->auth_aes_256_cmac; |
| 340 | default: |
| 341 | return NULL; |
| 342 | } |
| 343 | return NULL; |
| 344 | } |
| 345 | |
| 346 | static int _ce_setup_hash(struct qce_device *pce_dev, |
| 347 | struct qce_sha_req *sreq, |
| 348 | struct qce_cmdlist_info *cmdlistinfo) |
| 349 | { |
| 350 | uint32_t auth32[SHA256_DIGEST_SIZE / sizeof(uint32_t)]; |
| 351 | uint32_t diglen; |
| 352 | int i; |
| 353 | uint32_t mackey32[SHA_HMAC_KEY_SIZE/sizeof(uint32_t)] = { |
| 354 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 355 | bool sha1 = false; |
| 356 | struct sps_command_element *pce = NULL; |
| 357 | bool use_hw_key = false; |
| 358 | bool use_pipe_key = false; |
| 359 | uint32_t authk_size_in_word = sreq->authklen/sizeof(uint32_t); |
| 360 | uint32_t auth_cfg; |
| 361 | |
| 362 | if ((sreq->alg == QCE_HASH_SHA1_HMAC) || |
| 363 | (sreq->alg == QCE_HASH_SHA256_HMAC) || |
| 364 | (sreq->alg == QCE_HASH_AES_CMAC)) { |
| 365 | |
| 366 | |
| 367 | /* no more check for null key. use flag */ |
| 368 | if ((sreq->flags & QCRYPTO_CTX_USE_HW_KEY) |
| 369 | == QCRYPTO_CTX_USE_HW_KEY) |
| 370 | use_hw_key = true; |
| 371 | else if ((sreq->flags & QCRYPTO_CTX_USE_PIPE_KEY) == |
| 372 | QCRYPTO_CTX_USE_PIPE_KEY) |
| 373 | use_pipe_key = true; |
| 374 | pce = cmdlistinfo->go_proc; |
| 375 | if (use_hw_key == true) { |
| 376 | pce->addr = (uint32_t)(CRYPTO_GOPROC_QC_KEY_REG + |
| 377 | pce_dev->phy_iobase); |
| 378 | } else { |
| 379 | pce->addr = (uint32_t)(CRYPTO_GOPROC_REG + |
| 380 | pce_dev->phy_iobase); |
| 381 | pce = cmdlistinfo->auth_key; |
| 382 | if (use_pipe_key == false) { |
| 383 | _byte_stream_to_net_words(mackey32, |
| 384 | sreq->authkey, |
| 385 | sreq->authklen); |
| 386 | for (i = 0; i < authk_size_in_word; i++, pce++) |
| 387 | pce->data = mackey32[i]; |
| 388 | } |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | if (sreq->alg == QCE_HASH_AES_CMAC) |
| 393 | goto go_proc; |
| 394 | |
| 395 | /* if not the last, the size has to be on the block boundary */ |
| 396 | if (sreq->last_blk == 0 && (sreq->size % SHA256_BLOCK_SIZE)) |
| 397 | return -EIO; |
| 398 | |
| 399 | switch (sreq->alg) { |
| 400 | case QCE_HASH_SHA1: |
| 401 | case QCE_HASH_SHA1_HMAC: |
| 402 | diglen = SHA1_DIGEST_SIZE; |
| 403 | sha1 = true; |
| 404 | break; |
| 405 | case QCE_HASH_SHA256: |
| 406 | case QCE_HASH_SHA256_HMAC: |
| 407 | diglen = SHA256_DIGEST_SIZE; |
| 408 | break; |
| 409 | default: |
| 410 | return -EINVAL; |
| 411 | } |
| 412 | |
| 413 | /* write 20/32 bytes, 5/8 words into auth_iv for SHA1/SHA256 */ |
| 414 | if (sreq->first_blk) { |
| 415 | if (sha1) { |
| 416 | for (i = 0; i < 5; i++) |
| 417 | auth32[i] = _std_init_vector_sha1[i]; |
| 418 | } else { |
| 419 | for (i = 0; i < 8; i++) |
| 420 | auth32[i] = _std_init_vector_sha256[i]; |
| 421 | } |
| 422 | } else { |
| 423 | _byte_stream_to_net_words(auth32, sreq->digest, diglen); |
| 424 | } |
| 425 | |
| 426 | pce = cmdlistinfo->auth_iv; |
| 427 | for (i = 0; i < 5; i++, pce++) |
| 428 | pce->data = auth32[i]; |
| 429 | |
| 430 | if ((sreq->alg == QCE_HASH_SHA256) || |
| 431 | (sreq->alg == QCE_HASH_SHA256_HMAC)) { |
| 432 | for (i = 5; i < 8; i++, pce++) |
| 433 | pce->data = auth32[i]; |
| 434 | } |
| 435 | |
| 436 | /* write auth_bytecnt 0/1, start with 0 */ |
| 437 | pce = cmdlistinfo->auth_bytecount; |
| 438 | for (i = 0; i < 2; i++, pce++) |
| 439 | pce->data = sreq->auth_data[i]; |
| 440 | |
| 441 | /* Set/reset last bit in CFG register */ |
| 442 | pce = cmdlistinfo->auth_seg_cfg; |
| 443 | auth_cfg = pce->data & ~(1 << CRYPTO_LAST | |
| 444 | 1 << CRYPTO_FIRST | |
| 445 | 1 << CRYPTO_USE_PIPE_KEY_AUTH | |
| 446 | 1 << CRYPTO_USE_HW_KEY_AUTH); |
| 447 | if (sreq->last_blk) |
| 448 | auth_cfg |= 1 << CRYPTO_LAST; |
| 449 | if (sreq->first_blk) |
| 450 | auth_cfg |= 1 << CRYPTO_FIRST; |
| 451 | if (use_hw_key) |
| 452 | auth_cfg |= 1 << CRYPTO_USE_HW_KEY_AUTH; |
| 453 | if (use_pipe_key) |
| 454 | auth_cfg |= 1 << CRYPTO_USE_PIPE_KEY_AUTH; |
| 455 | pce->data = auth_cfg; |
| 456 | go_proc: |
| 457 | /* write auth seg size */ |
| 458 | pce = cmdlistinfo->auth_seg_size; |
| 459 | pce->data = sreq->size; |
| 460 | |
| 461 | pce = cmdlistinfo->encr_seg_cfg; |
| 462 | pce->data = 0; |
| 463 | |
| 464 | /* write auth seg size start*/ |
| 465 | pce = cmdlistinfo->auth_seg_start; |
| 466 | pce->data = 0; |
| 467 | |
| 468 | /* write seg size */ |
| 469 | pce = cmdlistinfo->seg_size; |
| 470 | |
| 471 | /* always ensure there is input data. ZLT does not work for bam-ndp */ |
| 472 | if (sreq->size) |
| 473 | pce->data = sreq->size; |
| 474 | else |
| 475 | pce->data = pce_dev->ce_bam_info.ce_burst_size; |
| 476 | |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | static struct qce_cmdlist_info *_ce_get_aead_cmdlistinfo( |
| 481 | struct qce_device *pce_dev, |
| 482 | int req_info, struct qce_req *creq) |
| 483 | { |
| 484 | struct ce_sps_data *pce_sps_data; |
| 485 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 486 | |
| 487 | pce_sps_data = &pce_dev->ce_request_info[req_info].ce_sps; |
| 488 | cmdlistptr = &pce_sps_data->cmdlistptr; |
| 489 | switch (creq->alg) { |
| 490 | case CIPHER_ALG_DES: |
| 491 | switch (creq->mode) { |
| 492 | case QCE_MODE_CBC: |
| 493 | if (creq->auth_alg == QCE_HASH_SHA1_HMAC) |
| 494 | return &cmdlistptr->aead_hmac_sha1_cbc_des; |
| 495 | else if (creq->auth_alg == QCE_HASH_SHA256_HMAC) |
| 496 | return &cmdlistptr->aead_hmac_sha256_cbc_des; |
| 497 | else |
| 498 | return NULL; |
| 499 | break; |
| 500 | default: |
| 501 | return NULL; |
| 502 | } |
| 503 | break; |
| 504 | case CIPHER_ALG_3DES: |
| 505 | switch (creq->mode) { |
| 506 | case QCE_MODE_CBC: |
| 507 | if (creq->auth_alg == QCE_HASH_SHA1_HMAC) |
| 508 | return &cmdlistptr->aead_hmac_sha1_cbc_3des; |
| 509 | else if (creq->auth_alg == QCE_HASH_SHA256_HMAC) |
| 510 | return &cmdlistptr->aead_hmac_sha256_cbc_3des; |
| 511 | else |
| 512 | return NULL; |
| 513 | break; |
| 514 | default: |
| 515 | return NULL; |
| 516 | } |
| 517 | break; |
| 518 | case CIPHER_ALG_AES: |
| 519 | switch (creq->mode) { |
| 520 | case QCE_MODE_CBC: |
| 521 | if (creq->encklen == AES128_KEY_SIZE) { |
| 522 | if (creq->auth_alg == QCE_HASH_SHA1_HMAC) |
| 523 | return &cmdlistptr-> |
| 524 | aead_hmac_sha1_cbc_aes_128; |
| 525 | else if (creq->auth_alg == |
| 526 | QCE_HASH_SHA256_HMAC) |
| 527 | return &cmdlistptr-> |
| 528 | aead_hmac_sha256_cbc_aes_128; |
| 529 | else |
| 530 | return NULL; |
| 531 | } else if (creq->encklen == AES256_KEY_SIZE) { |
| 532 | if (creq->auth_alg == QCE_HASH_SHA1_HMAC) |
| 533 | return &cmdlistptr-> |
| 534 | aead_hmac_sha1_cbc_aes_256; |
| 535 | else if (creq->auth_alg == |
| 536 | QCE_HASH_SHA256_HMAC) |
| 537 | return &cmdlistptr-> |
| 538 | aead_hmac_sha256_cbc_aes_256; |
| 539 | else |
| 540 | return NULL; |
| 541 | } else |
| 542 | return NULL; |
| 543 | break; |
| 544 | default: |
| 545 | return NULL; |
| 546 | } |
| 547 | break; |
| 548 | |
| 549 | default: |
| 550 | return NULL; |
| 551 | } |
| 552 | return NULL; |
| 553 | } |
| 554 | |
| 555 | static int _ce_setup_aead(struct qce_device *pce_dev, struct qce_req *q_req, |
| 556 | uint32_t totallen_in, uint32_t coffset, |
| 557 | struct qce_cmdlist_info *cmdlistinfo) |
| 558 | { |
| 559 | int32_t authk_size_in_word = SHA_HMAC_KEY_SIZE/sizeof(uint32_t); |
| 560 | int i; |
| 561 | uint32_t mackey32[SHA_HMAC_KEY_SIZE/sizeof(uint32_t)] = {0}; |
| 562 | struct sps_command_element *pce; |
| 563 | uint32_t a_cfg; |
| 564 | uint32_t enckey32[(MAX_CIPHER_KEY_SIZE*2)/sizeof(uint32_t)] = {0}; |
| 565 | uint32_t enciv32[MAX_IV_LENGTH/sizeof(uint32_t)] = {0}; |
| 566 | uint32_t enck_size_in_word = 0; |
| 567 | uint32_t enciv_in_word; |
| 568 | uint32_t key_size; |
| 569 | uint32_t encr_cfg = 0; |
| 570 | uint32_t ivsize = q_req->ivsize; |
| 571 | |
| 572 | key_size = q_req->encklen; |
| 573 | enck_size_in_word = key_size/sizeof(uint32_t); |
| 574 | |
| 575 | switch (q_req->alg) { |
| 576 | case CIPHER_ALG_DES: |
| 577 | enciv_in_word = 2; |
| 578 | break; |
| 579 | case CIPHER_ALG_3DES: |
| 580 | enciv_in_word = 2; |
| 581 | break; |
| 582 | case CIPHER_ALG_AES: |
| 583 | if ((key_size != AES128_KEY_SIZE) && |
| 584 | (key_size != AES256_KEY_SIZE)) |
| 585 | return -EINVAL; |
| 586 | enciv_in_word = 4; |
| 587 | break; |
| 588 | default: |
| 589 | return -EINVAL; |
| 590 | } |
| 591 | |
| 592 | /* only support cbc mode */ |
| 593 | if (q_req->mode != QCE_MODE_CBC) |
| 594 | return -EINVAL; |
| 595 | |
| 596 | _byte_stream_to_net_words(enciv32, q_req->iv, ivsize); |
| 597 | pce = cmdlistinfo->encr_cntr_iv; |
| 598 | for (i = 0; i < enciv_in_word; i++, pce++) |
| 599 | pce->data = enciv32[i]; |
| 600 | |
| 601 | /* |
| 602 | * write encr key |
| 603 | * do not use hw key or pipe key |
| 604 | */ |
| 605 | _byte_stream_to_net_words(enckey32, q_req->enckey, key_size); |
| 606 | pce = cmdlistinfo->encr_key; |
| 607 | for (i = 0; i < enck_size_in_word; i++, pce++) |
| 608 | pce->data = enckey32[i]; |
| 609 | |
| 610 | /* write encr seg cfg */ |
| 611 | pce = cmdlistinfo->encr_seg_cfg; |
| 612 | encr_cfg = pce->data; |
| 613 | if (q_req->dir == QCE_ENCRYPT) |
| 614 | encr_cfg |= (1 << CRYPTO_ENCODE); |
| 615 | else |
| 616 | encr_cfg &= ~(1 << CRYPTO_ENCODE); |
| 617 | pce->data = encr_cfg; |
| 618 | |
| 619 | /* we only support sha1-hmac and sha256-hmac at this point */ |
| 620 | _byte_stream_to_net_words(mackey32, q_req->authkey, |
| 621 | q_req->authklen); |
| 622 | pce = cmdlistinfo->auth_key; |
| 623 | for (i = 0; i < authk_size_in_word; i++, pce++) |
| 624 | pce->data = mackey32[i]; |
| 625 | pce = cmdlistinfo->auth_iv; |
| 626 | |
| 627 | if (q_req->auth_alg == QCE_HASH_SHA1_HMAC) |
| 628 | for (i = 0; i < 5; i++, pce++) |
| 629 | pce->data = _std_init_vector_sha1[i]; |
| 630 | else |
| 631 | for (i = 0; i < 8; i++, pce++) |
| 632 | pce->data = _std_init_vector_sha256[i]; |
| 633 | |
| 634 | /* write auth_bytecnt 0/1, start with 0 */ |
| 635 | pce = cmdlistinfo->auth_bytecount; |
| 636 | for (i = 0; i < 2; i++, pce++) |
| 637 | pce->data = 0; |
| 638 | |
| 639 | pce = cmdlistinfo->auth_seg_cfg; |
| 640 | a_cfg = pce->data; |
| 641 | a_cfg &= ~(CRYPTO_AUTH_POS_MASK); |
| 642 | if (q_req->dir == QCE_ENCRYPT) |
| 643 | a_cfg |= (CRYPTO_AUTH_POS_AFTER << CRYPTO_AUTH_POS); |
| 644 | else |
| 645 | a_cfg |= (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 646 | pce->data = a_cfg; |
| 647 | |
| 648 | /* write auth seg size */ |
| 649 | pce = cmdlistinfo->auth_seg_size; |
| 650 | pce->data = totallen_in; |
| 651 | |
| 652 | /* write auth seg size start*/ |
| 653 | pce = cmdlistinfo->auth_seg_start; |
| 654 | pce->data = 0; |
| 655 | |
| 656 | /* write seg size */ |
| 657 | pce = cmdlistinfo->seg_size; |
| 658 | pce->data = totallen_in; |
| 659 | |
| 660 | /* write encr seg size */ |
| 661 | pce = cmdlistinfo->encr_seg_size; |
| 662 | pce->data = q_req->cryptlen; |
| 663 | |
| 664 | /* write encr seg start */ |
| 665 | pce = cmdlistinfo->encr_seg_start; |
| 666 | pce->data = (coffset & 0xffff); |
| 667 | |
| 668 | return 0; |
| 669 | |
| 670 | } |
| 671 | |
| 672 | static struct qce_cmdlist_info *_ce_get_cipher_cmdlistinfo( |
| 673 | struct qce_device *pce_dev, |
| 674 | int req_info, struct qce_req *creq) |
| 675 | { |
| 676 | struct ce_request_info *preq_info; |
| 677 | struct ce_sps_data *pce_sps_data; |
| 678 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 679 | |
| 680 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 681 | pce_sps_data = &preq_info->ce_sps; |
| 682 | cmdlistptr = &pce_sps_data->cmdlistptr; |
| 683 | if (creq->alg != CIPHER_ALG_AES) { |
| 684 | switch (creq->alg) { |
| 685 | case CIPHER_ALG_DES: |
| 686 | if (creq->mode == QCE_MODE_ECB) |
| 687 | return &cmdlistptr->cipher_des_ecb; |
| 688 | return &cmdlistptr->cipher_des_cbc; |
| 689 | case CIPHER_ALG_3DES: |
| 690 | if (creq->mode == QCE_MODE_ECB) |
| 691 | return &cmdlistptr->cipher_3des_ecb; |
| 692 | return &cmdlistptr->cipher_3des_cbc; |
| 693 | default: |
| 694 | return NULL; |
| 695 | } |
| 696 | } else { |
| 697 | switch (creq->mode) { |
| 698 | case QCE_MODE_ECB: |
| 699 | if (creq->encklen == AES128_KEY_SIZE) |
| 700 | return &cmdlistptr->cipher_aes_128_ecb; |
| 701 | return &cmdlistptr->cipher_aes_256_ecb; |
| 702 | case QCE_MODE_CBC: |
| 703 | case QCE_MODE_CTR: |
| 704 | if (creq->encklen == AES128_KEY_SIZE) |
| 705 | return &cmdlistptr->cipher_aes_128_cbc_ctr; |
| 706 | return &cmdlistptr->cipher_aes_256_cbc_ctr; |
| 707 | case QCE_MODE_XTS: |
| 708 | if (creq->encklen/2 == AES128_KEY_SIZE) |
| 709 | return &cmdlistptr->cipher_aes_128_xts; |
| 710 | return &cmdlistptr->cipher_aes_256_xts; |
| 711 | case QCE_MODE_CCM: |
| 712 | if (creq->encklen == AES128_KEY_SIZE) |
| 713 | return &cmdlistptr->aead_aes_128_ccm; |
| 714 | return &cmdlistptr->aead_aes_256_ccm; |
| 715 | default: |
| 716 | return NULL; |
| 717 | } |
| 718 | } |
| 719 | return NULL; |
| 720 | } |
| 721 | |
| 722 | static int _ce_setup_cipher(struct qce_device *pce_dev, struct qce_req *creq, |
| 723 | uint32_t totallen_in, uint32_t coffset, |
| 724 | struct qce_cmdlist_info *cmdlistinfo) |
| 725 | { |
| 726 | uint32_t enckey32[(MAX_CIPHER_KEY_SIZE * 2)/sizeof(uint32_t)] = { |
| 727 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 728 | uint32_t enciv32[MAX_IV_LENGTH / sizeof(uint32_t)] = { |
| 729 | 0, 0, 0, 0}; |
| 730 | uint32_t enck_size_in_word = 0; |
| 731 | uint32_t key_size; |
| 732 | bool use_hw_key = false; |
| 733 | bool use_pipe_key = false; |
| 734 | uint32_t encr_cfg = 0; |
| 735 | uint32_t ivsize = creq->ivsize; |
| 736 | int i; |
| 737 | struct sps_command_element *pce = NULL; |
| 738 | |
| 739 | if (creq->mode == QCE_MODE_XTS) |
| 740 | key_size = creq->encklen/2; |
| 741 | else |
| 742 | key_size = creq->encklen; |
| 743 | |
| 744 | pce = cmdlistinfo->go_proc; |
| 745 | if ((creq->flags & QCRYPTO_CTX_USE_HW_KEY) == QCRYPTO_CTX_USE_HW_KEY) { |
| 746 | use_hw_key = true; |
| 747 | } else { |
| 748 | if ((creq->flags & QCRYPTO_CTX_USE_PIPE_KEY) == |
| 749 | QCRYPTO_CTX_USE_PIPE_KEY) |
| 750 | use_pipe_key = true; |
| 751 | } |
| 752 | pce = cmdlistinfo->go_proc; |
| 753 | if (use_hw_key == true) |
| 754 | pce->addr = (uint32_t)(CRYPTO_GOPROC_QC_KEY_REG + |
| 755 | pce_dev->phy_iobase); |
| 756 | else |
| 757 | pce->addr = (uint32_t)(CRYPTO_GOPROC_REG + |
| 758 | pce_dev->phy_iobase); |
| 759 | if ((use_pipe_key == false) && (use_hw_key == false)) { |
| 760 | _byte_stream_to_net_words(enckey32, creq->enckey, key_size); |
| 761 | enck_size_in_word = key_size/sizeof(uint32_t); |
| 762 | } |
| 763 | |
| 764 | if ((creq->op == QCE_REQ_AEAD) && (creq->mode == QCE_MODE_CCM)) { |
| 765 | uint32_t authklen32 = creq->encklen/sizeof(uint32_t); |
| 766 | uint32_t noncelen32 = MAX_NONCE/sizeof(uint32_t); |
| 767 | uint32_t nonce32[MAX_NONCE/sizeof(uint32_t)] = {0, 0, 0, 0}; |
| 768 | uint32_t auth_cfg = 0; |
| 769 | |
| 770 | /* write nonce */ |
| 771 | _byte_stream_to_net_words(nonce32, creq->nonce, MAX_NONCE); |
| 772 | pce = cmdlistinfo->auth_nonce_info; |
| 773 | for (i = 0; i < noncelen32; i++, pce++) |
| 774 | pce->data = nonce32[i]; |
| 775 | |
| 776 | if (creq->authklen == AES128_KEY_SIZE) |
| 777 | auth_cfg = pce_dev->reg.auth_cfg_aes_ccm_128; |
| 778 | else { |
| 779 | if (creq->authklen == AES256_KEY_SIZE) |
| 780 | auth_cfg = pce_dev->reg.auth_cfg_aes_ccm_256; |
| 781 | } |
| 782 | if (creq->dir == QCE_ENCRYPT) |
| 783 | auth_cfg |= (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 784 | else |
| 785 | auth_cfg |= (CRYPTO_AUTH_POS_AFTER << CRYPTO_AUTH_POS); |
| 786 | auth_cfg |= ((creq->authsize - 1) << CRYPTO_AUTH_SIZE); |
| 787 | |
| 788 | if (use_hw_key == true) { |
| 789 | auth_cfg |= (1 << CRYPTO_USE_HW_KEY_AUTH); |
| 790 | } else { |
| 791 | auth_cfg &= ~(1 << CRYPTO_USE_HW_KEY_AUTH); |
| 792 | /* write auth key */ |
| 793 | pce = cmdlistinfo->auth_key; |
| 794 | for (i = 0; i < authklen32; i++, pce++) |
| 795 | pce->data = enckey32[i]; |
| 796 | } |
| 797 | |
| 798 | pce = cmdlistinfo->auth_seg_cfg; |
| 799 | pce->data = auth_cfg; |
| 800 | |
| 801 | pce = cmdlistinfo->auth_seg_size; |
| 802 | if (creq->dir == QCE_ENCRYPT) |
| 803 | pce->data = totallen_in; |
| 804 | else |
| 805 | pce->data = totallen_in - creq->authsize; |
| 806 | pce = cmdlistinfo->auth_seg_start; |
| 807 | pce->data = 0; |
| 808 | } else { |
| 809 | if (creq->op != QCE_REQ_AEAD) { |
| 810 | pce = cmdlistinfo->auth_seg_cfg; |
| 811 | pce->data = 0; |
| 812 | } |
| 813 | } |
| 814 | switch (creq->mode) { |
| 815 | case QCE_MODE_ECB: |
| 816 | if (key_size == AES128_KEY_SIZE) |
| 817 | encr_cfg = pce_dev->reg.encr_cfg_aes_ecb_128; |
| 818 | else |
| 819 | encr_cfg = pce_dev->reg.encr_cfg_aes_ecb_256; |
| 820 | break; |
| 821 | case QCE_MODE_CBC: |
| 822 | if (key_size == AES128_KEY_SIZE) |
| 823 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_128; |
| 824 | else |
| 825 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_256; |
| 826 | break; |
| 827 | case QCE_MODE_XTS: |
| 828 | if (key_size == AES128_KEY_SIZE) |
| 829 | encr_cfg = pce_dev->reg.encr_cfg_aes_xts_128; |
| 830 | else |
| 831 | encr_cfg = pce_dev->reg.encr_cfg_aes_xts_256; |
| 832 | break; |
| 833 | case QCE_MODE_CCM: |
| 834 | if (key_size == AES128_KEY_SIZE) |
| 835 | encr_cfg = pce_dev->reg.encr_cfg_aes_ccm_128; |
| 836 | else |
| 837 | encr_cfg = pce_dev->reg.encr_cfg_aes_ccm_256; |
| 838 | encr_cfg |= (CRYPTO_ENCR_MODE_CCM << CRYPTO_ENCR_MODE) | |
| 839 | (CRYPTO_LAST_CCM_XFR << CRYPTO_LAST_CCM); |
| 840 | break; |
| 841 | case QCE_MODE_CTR: |
| 842 | default: |
| 843 | if (key_size == AES128_KEY_SIZE) |
| 844 | encr_cfg = pce_dev->reg.encr_cfg_aes_ctr_128; |
| 845 | else |
| 846 | encr_cfg = pce_dev->reg.encr_cfg_aes_ctr_256; |
| 847 | break; |
| 848 | } |
| 849 | |
| 850 | switch (creq->alg) { |
| 851 | case CIPHER_ALG_DES: |
| 852 | if (creq->mode != QCE_MODE_ECB) { |
| 853 | _byte_stream_to_net_words(enciv32, creq->iv, ivsize); |
| 854 | pce = cmdlistinfo->encr_cntr_iv; |
| 855 | pce->data = enciv32[0]; |
| 856 | pce++; |
| 857 | pce->data = enciv32[1]; |
| 858 | } |
| 859 | if (use_hw_key == false) { |
| 860 | pce = cmdlistinfo->encr_key; |
| 861 | pce->data = enckey32[0]; |
| 862 | pce++; |
| 863 | pce->data = enckey32[1]; |
| 864 | } |
| 865 | break; |
| 866 | case CIPHER_ALG_3DES: |
| 867 | if (creq->mode != QCE_MODE_ECB) { |
| 868 | _byte_stream_to_net_words(enciv32, creq->iv, ivsize); |
| 869 | pce = cmdlistinfo->encr_cntr_iv; |
| 870 | pce->data = enciv32[0]; |
| 871 | pce++; |
| 872 | pce->data = enciv32[1]; |
| 873 | } |
| 874 | if (use_hw_key == false) { |
| 875 | /* write encr key */ |
| 876 | pce = cmdlistinfo->encr_key; |
| 877 | for (i = 0; i < 6; i++, pce++) |
| 878 | pce->data = enckey32[i]; |
| 879 | } |
| 880 | break; |
| 881 | case CIPHER_ALG_AES: |
| 882 | default: |
| 883 | if (creq->mode == QCE_MODE_XTS) { |
| 884 | uint32_t xtskey32[MAX_CIPHER_KEY_SIZE/sizeof(uint32_t)] |
| 885 | = {0, 0, 0, 0, 0, 0, 0, 0}; |
| 886 | uint32_t xtsklen = |
| 887 | creq->encklen/(2 * sizeof(uint32_t)); |
| 888 | |
| 889 | if ((use_hw_key == false) && (use_pipe_key == false)) { |
| 890 | _byte_stream_to_net_words(xtskey32, |
| 891 | (creq->enckey + creq->encklen/2), |
| 892 | creq->encklen/2); |
| 893 | /* write xts encr key */ |
| 894 | pce = cmdlistinfo->encr_xts_key; |
| 895 | for (i = 0; i < xtsklen; i++, pce++) |
| 896 | pce->data = xtskey32[i]; |
| 897 | } |
| 898 | /* write xts du size */ |
| 899 | pce = cmdlistinfo->encr_xts_du_size; |
| 900 | switch (creq->flags & QCRYPTO_CTX_XTS_MASK) { |
| 901 | case QCRYPTO_CTX_XTS_DU_SIZE_512B: |
| 902 | pce->data = min((unsigned int)QCE_SECTOR_SIZE, |
| 903 | creq->cryptlen); |
| 904 | break; |
| 905 | case QCRYPTO_CTX_XTS_DU_SIZE_1KB: |
| 906 | pce->data = |
| 907 | min((unsigned int)QCE_SECTOR_SIZE * 2, |
| 908 | creq->cryptlen); |
| 909 | break; |
| 910 | default: |
| 911 | pce->data = creq->cryptlen; |
| 912 | break; |
| 913 | } |
| 914 | } |
| 915 | if (creq->mode != QCE_MODE_ECB) { |
| 916 | if (creq->mode == QCE_MODE_XTS) |
| 917 | _byte_stream_swap_to_net_words(enciv32, |
| 918 | creq->iv, ivsize); |
| 919 | else |
| 920 | _byte_stream_to_net_words(enciv32, creq->iv, |
| 921 | ivsize); |
| 922 | /* write encr cntr iv */ |
| 923 | pce = cmdlistinfo->encr_cntr_iv; |
| 924 | for (i = 0; i < 4; i++, pce++) |
| 925 | pce->data = enciv32[i]; |
| 926 | |
| 927 | if (creq->mode == QCE_MODE_CCM) { |
| 928 | /* write cntr iv for ccm */ |
| 929 | pce = cmdlistinfo->encr_ccm_cntr_iv; |
| 930 | for (i = 0; i < 4; i++, pce++) |
| 931 | pce->data = enciv32[i]; |
| 932 | /* update cntr_iv[3] by one */ |
| 933 | pce = cmdlistinfo->encr_cntr_iv; |
| 934 | pce += 3; |
| 935 | pce->data += 1; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | if (creq->op == QCE_REQ_ABLK_CIPHER_NO_KEY) { |
| 940 | encr_cfg |= (CRYPTO_ENCR_KEY_SZ_AES128 << |
| 941 | CRYPTO_ENCR_KEY_SZ); |
| 942 | } else { |
| 943 | if (use_hw_key == false) { |
| 944 | /* write encr key */ |
| 945 | pce = cmdlistinfo->encr_key; |
| 946 | for (i = 0; i < enck_size_in_word; i++, pce++) |
| 947 | pce->data = enckey32[i]; |
| 948 | } |
| 949 | } /* else of if (creq->op == QCE_REQ_ABLK_CIPHER_NO_KEY) */ |
| 950 | break; |
| 951 | } /* end of switch (creq->mode) */ |
| 952 | |
| 953 | if (use_pipe_key) |
| 954 | encr_cfg |= (CRYPTO_USE_PIPE_KEY_ENCR_ENABLED |
| 955 | << CRYPTO_USE_PIPE_KEY_ENCR); |
| 956 | |
| 957 | /* write encr seg cfg */ |
| 958 | pce = cmdlistinfo->encr_seg_cfg; |
| 959 | if ((creq->alg == CIPHER_ALG_DES) || (creq->alg == CIPHER_ALG_3DES)) { |
| 960 | if (creq->dir == QCE_ENCRYPT) |
| 961 | pce->data |= (1 << CRYPTO_ENCODE); |
| 962 | else |
| 963 | pce->data &= ~(1 << CRYPTO_ENCODE); |
| 964 | encr_cfg = pce->data; |
| 965 | } else { |
| 966 | encr_cfg |= |
| 967 | ((creq->dir == QCE_ENCRYPT) ? 1 : 0) << CRYPTO_ENCODE; |
| 968 | } |
| 969 | if (use_hw_key == true) |
| 970 | encr_cfg |= (CRYPTO_USE_HW_KEY << CRYPTO_USE_HW_KEY_ENCR); |
| 971 | else |
| 972 | encr_cfg &= ~(CRYPTO_USE_HW_KEY << CRYPTO_USE_HW_KEY_ENCR); |
| 973 | pce->data = encr_cfg; |
| 974 | |
| 975 | /* write encr seg size */ |
| 976 | pce = cmdlistinfo->encr_seg_size; |
| 977 | if ((creq->mode == QCE_MODE_CCM) && (creq->dir == QCE_DECRYPT)) |
| 978 | pce->data = (creq->cryptlen + creq->authsize); |
| 979 | else |
| 980 | pce->data = creq->cryptlen; |
| 981 | |
| 982 | /* write encr seg start */ |
| 983 | pce = cmdlistinfo->encr_seg_start; |
| 984 | pce->data = (coffset & 0xffff); |
| 985 | |
| 986 | /* write seg size */ |
| 987 | pce = cmdlistinfo->seg_size; |
| 988 | pce->data = totallen_in; |
| 989 | |
| 990 | return 0; |
| 991 | }; |
| 992 | |
| 993 | static int _ce_f9_setup(struct qce_device *pce_dev, struct qce_f9_req *req, |
| 994 | struct qce_cmdlist_info *cmdlistinfo) |
| 995 | { |
| 996 | uint32_t ikey32[OTA_KEY_SIZE/sizeof(uint32_t)]; |
| 997 | uint32_t key_size_in_word = OTA_KEY_SIZE/sizeof(uint32_t); |
| 998 | uint32_t cfg; |
| 999 | struct sps_command_element *pce; |
| 1000 | int i; |
| 1001 | |
| 1002 | switch (req->algorithm) { |
| 1003 | case QCE_OTA_ALGO_KASUMI: |
| 1004 | cfg = pce_dev->reg.auth_cfg_kasumi; |
| 1005 | break; |
| 1006 | case QCE_OTA_ALGO_SNOW3G: |
| 1007 | default: |
| 1008 | cfg = pce_dev->reg.auth_cfg_snow3g; |
| 1009 | break; |
| 1010 | }; |
| 1011 | |
| 1012 | /* write key in CRYPTO_AUTH_IV0-3_REG */ |
| 1013 | _byte_stream_to_net_words(ikey32, &req->ikey[0], OTA_KEY_SIZE); |
| 1014 | pce = cmdlistinfo->auth_iv; |
| 1015 | for (i = 0; i < key_size_in_word; i++, pce++) |
| 1016 | pce->data = ikey32[i]; |
| 1017 | |
| 1018 | /* write last bits in CRYPTO_AUTH_IV4_REG */ |
| 1019 | pce->data = req->last_bits; |
| 1020 | |
| 1021 | /* write fresh to CRYPTO_AUTH_BYTECNT0_REG */ |
| 1022 | pce = cmdlistinfo->auth_bytecount; |
| 1023 | pce->data = req->fresh; |
| 1024 | |
| 1025 | /* write count-i to CRYPTO_AUTH_BYTECNT1_REG */ |
| 1026 | pce++; |
| 1027 | pce->data = req->count_i; |
| 1028 | |
| 1029 | /* write auth seg cfg */ |
| 1030 | pce = cmdlistinfo->auth_seg_cfg; |
| 1031 | if (req->direction == QCE_OTA_DIR_DOWNLINK) |
| 1032 | cfg |= BIT(CRYPTO_F9_DIRECTION); |
| 1033 | pce->data = cfg; |
| 1034 | |
| 1035 | /* write auth seg size */ |
| 1036 | pce = cmdlistinfo->auth_seg_size; |
| 1037 | pce->data = req->msize; |
| 1038 | |
| 1039 | /* write auth seg start*/ |
| 1040 | pce = cmdlistinfo->auth_seg_start; |
| 1041 | pce->data = 0; |
| 1042 | |
| 1043 | /* write seg size */ |
| 1044 | pce = cmdlistinfo->seg_size; |
| 1045 | pce->data = req->msize; |
| 1046 | |
| 1047 | |
| 1048 | /* write go */ |
| 1049 | pce = cmdlistinfo->go_proc; |
| 1050 | pce->addr = (uint32_t)(CRYPTO_GOPROC_REG + pce_dev->phy_iobase); |
| 1051 | return 0; |
| 1052 | } |
| 1053 | |
| 1054 | static int _ce_f8_setup(struct qce_device *pce_dev, struct qce_f8_req *req, |
| 1055 | bool key_stream_mode, uint16_t npkts, uint16_t cipher_offset, |
| 1056 | uint16_t cipher_size, |
| 1057 | struct qce_cmdlist_info *cmdlistinfo) |
| 1058 | { |
| 1059 | uint32_t ckey32[OTA_KEY_SIZE/sizeof(uint32_t)]; |
| 1060 | uint32_t key_size_in_word = OTA_KEY_SIZE/sizeof(uint32_t); |
| 1061 | uint32_t cfg; |
| 1062 | struct sps_command_element *pce; |
| 1063 | int i; |
| 1064 | |
| 1065 | switch (req->algorithm) { |
| 1066 | case QCE_OTA_ALGO_KASUMI: |
| 1067 | cfg = pce_dev->reg.encr_cfg_kasumi; |
| 1068 | break; |
| 1069 | case QCE_OTA_ALGO_SNOW3G: |
| 1070 | default: |
| 1071 | cfg = pce_dev->reg.encr_cfg_snow3g; |
| 1072 | break; |
| 1073 | }; |
| 1074 | /* write key */ |
| 1075 | _byte_stream_to_net_words(ckey32, &req->ckey[0], OTA_KEY_SIZE); |
| 1076 | pce = cmdlistinfo->encr_key; |
| 1077 | for (i = 0; i < key_size_in_word; i++, pce++) |
| 1078 | pce->data = ckey32[i]; |
| 1079 | |
| 1080 | /* write encr seg cfg */ |
| 1081 | pce = cmdlistinfo->encr_seg_cfg; |
| 1082 | if (key_stream_mode) |
| 1083 | cfg |= BIT(CRYPTO_F8_KEYSTREAM_ENABLE); |
| 1084 | if (req->direction == QCE_OTA_DIR_DOWNLINK) |
| 1085 | cfg |= BIT(CRYPTO_F8_DIRECTION); |
| 1086 | pce->data = cfg; |
| 1087 | |
| 1088 | /* write encr seg start */ |
| 1089 | pce = cmdlistinfo->encr_seg_start; |
| 1090 | pce->data = (cipher_offset & 0xffff); |
| 1091 | |
| 1092 | /* write encr seg size */ |
| 1093 | pce = cmdlistinfo->encr_seg_size; |
| 1094 | pce->data = cipher_size; |
| 1095 | |
| 1096 | /* write seg size */ |
| 1097 | pce = cmdlistinfo->seg_size; |
| 1098 | pce->data = req->data_len; |
| 1099 | |
| 1100 | /* write cntr0_iv0 for countC */ |
| 1101 | pce = cmdlistinfo->encr_cntr_iv; |
| 1102 | pce->data = req->count_c; |
| 1103 | /* write cntr1_iv1 for nPkts, and bearer */ |
| 1104 | pce++; |
| 1105 | if (npkts == 1) |
| 1106 | npkts = 0; |
| 1107 | pce->data = req->bearer << CRYPTO_CNTR1_IV1_REG_F8_BEARER | |
| 1108 | npkts << CRYPTO_CNTR1_IV1_REG_F8_PKT_CNT; |
| 1109 | |
| 1110 | /* write go */ |
| 1111 | pce = cmdlistinfo->go_proc; |
| 1112 | pce->addr = (uint32_t)(CRYPTO_GOPROC_REG + pce_dev->phy_iobase); |
| 1113 | |
| 1114 | return 0; |
| 1115 | } |
| 1116 | |
| 1117 | static void _qce_dump_descr_fifos(struct qce_device *pce_dev, int req_info) |
| 1118 | { |
| 1119 | int i, j, ents; |
| 1120 | struct ce_sps_data *pce_sps_data; |
| 1121 | struct sps_iovec *iovec; |
| 1122 | uint32_t cmd_flags = SPS_IOVEC_FLAG_CMD; |
| 1123 | |
| 1124 | pce_sps_data = &pce_dev->ce_request_info[req_info].ce_sps; |
| 1125 | iovec = pce_sps_data->in_transfer.iovec; |
| 1126 | pr_info("==============================================\n"); |
| 1127 | pr_info("CONSUMER (TX/IN/DEST) PIPE DESCRIPTOR\n"); |
| 1128 | pr_info("==============================================\n"); |
| 1129 | for (i = 0; i < pce_sps_data->in_transfer.iovec_count; i++) { |
| 1130 | pr_info(" [%d] addr=0x%x size=0x%x flags=0x%x\n", i, |
| 1131 | iovec->addr, iovec->size, iovec->flags); |
| 1132 | if (iovec->flags & cmd_flags) { |
| 1133 | struct sps_command_element *pced; |
| 1134 | |
| 1135 | pced = (struct sps_command_element *) |
| 1136 | (GET_VIRT_ADDR(iovec->addr)); |
| 1137 | ents = iovec->size/(sizeof(struct sps_command_element)); |
| 1138 | for (j = 0; j < ents; j++) { |
| 1139 | pr_info(" [%d] [0x%x] 0x%x\n", j, |
| 1140 | pced->addr, pced->data); |
| 1141 | pced++; |
| 1142 | } |
| 1143 | } |
| 1144 | iovec++; |
| 1145 | } |
| 1146 | |
| 1147 | pr_info("==============================================\n"); |
| 1148 | pr_info("PRODUCER (RX/OUT/SRC) PIPE DESCRIPTOR\n"); |
| 1149 | pr_info("==============================================\n"); |
| 1150 | iovec = pce_sps_data->out_transfer.iovec; |
| 1151 | for (i = 0; i < pce_sps_data->out_transfer.iovec_count; i++) { |
| 1152 | pr_info(" [%d] addr=0x%x size=0x%x flags=0x%x\n", i, |
| 1153 | iovec->addr, iovec->size, iovec->flags); |
| 1154 | iovec++; |
| 1155 | } |
| 1156 | } |
| 1157 | |
| 1158 | #ifdef QCE_DEBUG |
| 1159 | |
| 1160 | static void _qce_dump_descr_fifos_dbg(struct qce_device *pce_dev, int req_info) |
| 1161 | { |
| 1162 | _qce_dump_descr_fifos(pce_dev, req_info); |
| 1163 | } |
| 1164 | |
| 1165 | #define QCE_WRITE_REG(val, addr) \ |
| 1166 | { \ |
mohamed sunfeer | c6b8e6d | 2017-06-29 15:13:34 +0530 | [diff] [blame] | 1167 | pr_info(" [0x%pK] 0x%x\n", addr, (uint32_t)val); \ |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1168 | writel_relaxed(val, addr); \ |
| 1169 | } |
| 1170 | |
| 1171 | #else |
| 1172 | |
| 1173 | static void _qce_dump_descr_fifos_dbg(struct qce_device *pce_dev, int req_info) |
| 1174 | { |
| 1175 | } |
| 1176 | |
| 1177 | #define QCE_WRITE_REG(val, addr) \ |
| 1178 | writel_relaxed(val, addr) |
| 1179 | |
| 1180 | #endif |
| 1181 | |
| 1182 | static int _ce_setup_hash_direct(struct qce_device *pce_dev, |
| 1183 | struct qce_sha_req *sreq) |
| 1184 | { |
| 1185 | uint32_t auth32[SHA256_DIGEST_SIZE / sizeof(uint32_t)]; |
| 1186 | uint32_t diglen; |
| 1187 | bool use_hw_key = false; |
| 1188 | bool use_pipe_key = false; |
| 1189 | int i; |
| 1190 | uint32_t mackey32[SHA_HMAC_KEY_SIZE/sizeof(uint32_t)] = { |
| 1191 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 1192 | uint32_t authk_size_in_word = sreq->authklen/sizeof(uint32_t); |
| 1193 | bool sha1 = false; |
| 1194 | uint32_t auth_cfg = 0; |
| 1195 | |
| 1196 | /* clear status */ |
| 1197 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_STATUS_REG); |
| 1198 | |
| 1199 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_be, (pce_dev->iobase + |
| 1200 | CRYPTO_CONFIG_REG)); |
| 1201 | /* |
| 1202 | * Ensure previous instructions (setting the CONFIG register) |
| 1203 | * was completed before issuing starting to set other config register |
| 1204 | * This is to ensure the configurations are done in correct endian-ness |
| 1205 | * as set in the CONFIG registers |
| 1206 | */ |
| 1207 | mb(); |
| 1208 | |
| 1209 | if (sreq->alg == QCE_HASH_AES_CMAC) { |
| 1210 | /* write seg_cfg */ |
| 1211 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_CFG_REG); |
| 1212 | /* write seg_cfg */ |
| 1213 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_ENCR_SEG_CFG_REG); |
| 1214 | /* write seg_cfg */ |
| 1215 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_ENCR_SEG_SIZE_REG); |
| 1216 | |
| 1217 | /* Clear auth_ivn, auth_keyn registers */ |
| 1218 | for (i = 0; i < 16; i++) { |
| 1219 | QCE_WRITE_REG(0, (pce_dev->iobase + |
| 1220 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)))); |
| 1221 | QCE_WRITE_REG(0, (pce_dev->iobase + |
| 1222 | (CRYPTO_AUTH_KEY0_REG + i*sizeof(uint32_t)))); |
| 1223 | } |
| 1224 | /* write auth_bytecnt 0/1/2/3, start with 0 */ |
| 1225 | for (i = 0; i < 4; i++) |
| 1226 | QCE_WRITE_REG(0, pce_dev->iobase + |
| 1227 | CRYPTO_AUTH_BYTECNT0_REG + |
| 1228 | i * sizeof(uint32_t)); |
| 1229 | |
| 1230 | if (sreq->authklen == AES128_KEY_SIZE) |
| 1231 | auth_cfg = pce_dev->reg.auth_cfg_cmac_128; |
| 1232 | else |
| 1233 | auth_cfg = pce_dev->reg.auth_cfg_cmac_256; |
| 1234 | } |
| 1235 | |
| 1236 | if ((sreq->alg == QCE_HASH_SHA1_HMAC) || |
| 1237 | (sreq->alg == QCE_HASH_SHA256_HMAC) || |
| 1238 | (sreq->alg == QCE_HASH_AES_CMAC)) { |
| 1239 | |
| 1240 | _byte_stream_to_net_words(mackey32, sreq->authkey, |
| 1241 | sreq->authklen); |
| 1242 | |
| 1243 | /* no more check for null key. use flag to check*/ |
| 1244 | |
| 1245 | if ((sreq->flags & QCRYPTO_CTX_USE_HW_KEY) == |
| 1246 | QCRYPTO_CTX_USE_HW_KEY) { |
| 1247 | use_hw_key = true; |
| 1248 | } else if ((sreq->flags & QCRYPTO_CTX_USE_PIPE_KEY) == |
| 1249 | QCRYPTO_CTX_USE_PIPE_KEY) { |
| 1250 | use_pipe_key = true; |
| 1251 | } else { |
| 1252 | /* setup key */ |
| 1253 | for (i = 0; i < authk_size_in_word; i++) |
| 1254 | QCE_WRITE_REG(mackey32[i], (pce_dev->iobase + |
| 1255 | (CRYPTO_AUTH_KEY0_REG + |
| 1256 | i*sizeof(uint32_t)))); |
| 1257 | } |
| 1258 | } |
| 1259 | |
| 1260 | if (sreq->alg == QCE_HASH_AES_CMAC) |
| 1261 | goto go_proc; |
| 1262 | |
| 1263 | /* if not the last, the size has to be on the block boundary */ |
| 1264 | if (sreq->last_blk == 0 && (sreq->size % SHA256_BLOCK_SIZE)) |
| 1265 | return -EIO; |
| 1266 | |
| 1267 | switch (sreq->alg) { |
| 1268 | case QCE_HASH_SHA1: |
| 1269 | auth_cfg = pce_dev->reg.auth_cfg_sha1; |
| 1270 | diglen = SHA1_DIGEST_SIZE; |
| 1271 | sha1 = true; |
| 1272 | break; |
| 1273 | case QCE_HASH_SHA1_HMAC: |
| 1274 | auth_cfg = pce_dev->reg.auth_cfg_hmac_sha1; |
| 1275 | diglen = SHA1_DIGEST_SIZE; |
| 1276 | sha1 = true; |
| 1277 | break; |
| 1278 | case QCE_HASH_SHA256: |
| 1279 | auth_cfg = pce_dev->reg.auth_cfg_sha256; |
| 1280 | diglen = SHA256_DIGEST_SIZE; |
| 1281 | break; |
| 1282 | case QCE_HASH_SHA256_HMAC: |
| 1283 | auth_cfg = pce_dev->reg.auth_cfg_hmac_sha256; |
| 1284 | diglen = SHA256_DIGEST_SIZE; |
| 1285 | break; |
| 1286 | default: |
| 1287 | return -EINVAL; |
| 1288 | } |
| 1289 | |
| 1290 | /* write 20/32 bytes, 5/8 words into auth_iv for SHA1/SHA256 */ |
| 1291 | if (sreq->first_blk) { |
| 1292 | if (sha1) { |
| 1293 | for (i = 0; i < 5; i++) |
| 1294 | auth32[i] = _std_init_vector_sha1[i]; |
| 1295 | } else { |
| 1296 | for (i = 0; i < 8; i++) |
| 1297 | auth32[i] = _std_init_vector_sha256[i]; |
| 1298 | } |
| 1299 | } else { |
| 1300 | _byte_stream_to_net_words(auth32, sreq->digest, diglen); |
| 1301 | } |
| 1302 | |
| 1303 | /* Set auth_ivn, auth_keyn registers */ |
| 1304 | for (i = 0; i < 5; i++) |
| 1305 | QCE_WRITE_REG(auth32[i], (pce_dev->iobase + |
| 1306 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)))); |
| 1307 | |
| 1308 | if ((sreq->alg == QCE_HASH_SHA256) || |
| 1309 | (sreq->alg == QCE_HASH_SHA256_HMAC)) { |
| 1310 | for (i = 5; i < 8; i++) |
| 1311 | QCE_WRITE_REG(auth32[i], (pce_dev->iobase + |
| 1312 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)))); |
| 1313 | } |
| 1314 | |
| 1315 | |
| 1316 | /* write auth_bytecnt 0/1/2/3, start with 0 */ |
| 1317 | for (i = 0; i < 2; i++) |
| 1318 | QCE_WRITE_REG(sreq->auth_data[i], pce_dev->iobase + |
| 1319 | CRYPTO_AUTH_BYTECNT0_REG + |
| 1320 | i * sizeof(uint32_t)); |
| 1321 | |
| 1322 | /* Set/reset last bit in CFG register */ |
| 1323 | if (sreq->last_blk) |
| 1324 | auth_cfg |= 1 << CRYPTO_LAST; |
| 1325 | else |
| 1326 | auth_cfg &= ~(1 << CRYPTO_LAST); |
| 1327 | if (sreq->first_blk) |
| 1328 | auth_cfg |= 1 << CRYPTO_FIRST; |
| 1329 | else |
| 1330 | auth_cfg &= ~(1 << CRYPTO_FIRST); |
| 1331 | if (use_hw_key) |
| 1332 | auth_cfg |= 1 << CRYPTO_USE_HW_KEY_AUTH; |
| 1333 | if (use_pipe_key) |
| 1334 | auth_cfg |= 1 << CRYPTO_USE_PIPE_KEY_AUTH; |
| 1335 | go_proc: |
| 1336 | /* write seg_cfg */ |
| 1337 | QCE_WRITE_REG(auth_cfg, pce_dev->iobase + CRYPTO_AUTH_SEG_CFG_REG); |
| 1338 | /* write auth seg_size */ |
| 1339 | QCE_WRITE_REG(sreq->size, pce_dev->iobase + CRYPTO_AUTH_SEG_SIZE_REG); |
| 1340 | |
| 1341 | /* write auth_seg_start */ |
| 1342 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_START_REG); |
| 1343 | |
| 1344 | /* reset encr seg_cfg */ |
| 1345 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_ENCR_SEG_CFG_REG); |
| 1346 | |
| 1347 | /* write seg_size */ |
| 1348 | QCE_WRITE_REG(sreq->size, pce_dev->iobase + CRYPTO_SEG_SIZE_REG); |
| 1349 | |
| 1350 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase + |
| 1351 | CRYPTO_CONFIG_REG)); |
| 1352 | /* issue go to crypto */ |
| 1353 | if (use_hw_key == false) { |
| 1354 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 1355 | (1 << CRYPTO_CLR_CNTXT)), |
| 1356 | pce_dev->iobase + CRYPTO_GOPROC_REG); |
| 1357 | } else { |
| 1358 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)), |
| 1359 | pce_dev->iobase + CRYPTO_GOPROC_QC_KEY_REG); |
| 1360 | } |
| 1361 | /* |
| 1362 | * Ensure previous instructions (setting the GO register) |
| 1363 | * was completed before issuing a DMA transfer request |
| 1364 | */ |
| 1365 | mb(); |
| 1366 | return 0; |
| 1367 | } |
| 1368 | |
| 1369 | static int _ce_setup_aead_direct(struct qce_device *pce_dev, |
| 1370 | struct qce_req *q_req, uint32_t totallen_in, uint32_t coffset) |
| 1371 | { |
| 1372 | int32_t authk_size_in_word = SHA_HMAC_KEY_SIZE/sizeof(uint32_t); |
| 1373 | int i; |
| 1374 | uint32_t mackey32[SHA_HMAC_KEY_SIZE/sizeof(uint32_t)] = {0}; |
| 1375 | uint32_t a_cfg; |
| 1376 | uint32_t enckey32[(MAX_CIPHER_KEY_SIZE*2)/sizeof(uint32_t)] = {0}; |
| 1377 | uint32_t enciv32[MAX_IV_LENGTH/sizeof(uint32_t)] = {0}; |
| 1378 | uint32_t enck_size_in_word = 0; |
| 1379 | uint32_t enciv_in_word; |
| 1380 | uint32_t key_size; |
| 1381 | uint32_t ivsize = q_req->ivsize; |
| 1382 | uint32_t encr_cfg; |
| 1383 | |
| 1384 | |
| 1385 | /* clear status */ |
| 1386 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_STATUS_REG); |
| 1387 | |
| 1388 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_be, (pce_dev->iobase + |
| 1389 | CRYPTO_CONFIG_REG)); |
| 1390 | /* |
| 1391 | * Ensure previous instructions (setting the CONFIG register) |
| 1392 | * was completed before issuing starting to set other config register |
| 1393 | * This is to ensure the configurations are done in correct endian-ness |
| 1394 | * as set in the CONFIG registers |
| 1395 | */ |
| 1396 | mb(); |
| 1397 | |
| 1398 | key_size = q_req->encklen; |
| 1399 | enck_size_in_word = key_size/sizeof(uint32_t); |
| 1400 | |
| 1401 | switch (q_req->alg) { |
| 1402 | |
| 1403 | case CIPHER_ALG_DES: |
| 1404 | |
| 1405 | switch (q_req->mode) { |
| 1406 | case QCE_MODE_CBC: |
| 1407 | encr_cfg = pce_dev->reg.encr_cfg_des_cbc; |
| 1408 | break; |
| 1409 | default: |
| 1410 | return -EINVAL; |
| 1411 | } |
| 1412 | |
| 1413 | enciv_in_word = 2; |
| 1414 | break; |
| 1415 | |
| 1416 | case CIPHER_ALG_3DES: |
| 1417 | |
| 1418 | switch (q_req->mode) { |
| 1419 | case QCE_MODE_CBC: |
| 1420 | encr_cfg = pce_dev->reg.encr_cfg_3des_cbc; |
| 1421 | break; |
| 1422 | default: |
| 1423 | return -EINVAL; |
| 1424 | } |
| 1425 | |
| 1426 | enciv_in_word = 2; |
| 1427 | |
| 1428 | break; |
| 1429 | |
| 1430 | case CIPHER_ALG_AES: |
| 1431 | |
| 1432 | switch (q_req->mode) { |
| 1433 | case QCE_MODE_CBC: |
| 1434 | if (key_size == AES128_KEY_SIZE) |
| 1435 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_128; |
| 1436 | else if (key_size == AES256_KEY_SIZE) |
| 1437 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_256; |
| 1438 | else |
| 1439 | return -EINVAL; |
| 1440 | break; |
| 1441 | default: |
| 1442 | return -EINVAL; |
| 1443 | } |
| 1444 | |
| 1445 | enciv_in_word = 4; |
| 1446 | break; |
| 1447 | |
| 1448 | default: |
| 1449 | return -EINVAL; |
| 1450 | } |
| 1451 | |
| 1452 | |
| 1453 | |
| 1454 | |
| 1455 | /* write CNTR0_IV0_REG */ |
| 1456 | if (q_req->mode != QCE_MODE_ECB) { |
| 1457 | _byte_stream_to_net_words(enciv32, q_req->iv, ivsize); |
| 1458 | for (i = 0; i < enciv_in_word; i++) |
| 1459 | QCE_WRITE_REG(enciv32[i], pce_dev->iobase + |
| 1460 | (CRYPTO_CNTR0_IV0_REG + i * sizeof(uint32_t))); |
| 1461 | } |
| 1462 | |
| 1463 | /* |
| 1464 | * write encr key |
| 1465 | * do not use hw key or pipe key |
| 1466 | */ |
| 1467 | _byte_stream_to_net_words(enckey32, q_req->enckey, key_size); |
| 1468 | for (i = 0; i < enck_size_in_word; i++) |
| 1469 | QCE_WRITE_REG(enckey32[i], pce_dev->iobase + |
| 1470 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t))); |
| 1471 | |
| 1472 | /* write encr seg cfg */ |
| 1473 | if (q_req->dir == QCE_ENCRYPT) |
| 1474 | encr_cfg |= (1 << CRYPTO_ENCODE); |
| 1475 | QCE_WRITE_REG(encr_cfg, pce_dev->iobase + CRYPTO_ENCR_SEG_CFG_REG); |
| 1476 | |
| 1477 | /* we only support sha1-hmac and sha256-hmac at this point */ |
| 1478 | _byte_stream_to_net_words(mackey32, q_req->authkey, |
| 1479 | q_req->authklen); |
| 1480 | for (i = 0; i < authk_size_in_word; i++) |
| 1481 | QCE_WRITE_REG(mackey32[i], pce_dev->iobase + |
| 1482 | (CRYPTO_AUTH_KEY0_REG + i * sizeof(uint32_t))); |
| 1483 | |
| 1484 | if (q_req->auth_alg == QCE_HASH_SHA1_HMAC) { |
| 1485 | for (i = 0; i < 5; i++) |
| 1486 | QCE_WRITE_REG(_std_init_vector_sha1[i], |
| 1487 | pce_dev->iobase + |
| 1488 | (CRYPTO_AUTH_IV0_REG + i * sizeof(uint32_t))); |
| 1489 | } else { |
| 1490 | for (i = 0; i < 8; i++) |
| 1491 | QCE_WRITE_REG(_std_init_vector_sha256[i], |
| 1492 | pce_dev->iobase + |
| 1493 | (CRYPTO_AUTH_IV0_REG + i * sizeof(uint32_t))); |
| 1494 | } |
| 1495 | |
| 1496 | /* write auth_bytecnt 0/1, start with 0 */ |
| 1497 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_BYTECNT0_REG); |
| 1498 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_BYTECNT1_REG); |
| 1499 | |
| 1500 | /* write encr seg size */ |
| 1501 | QCE_WRITE_REG(q_req->cryptlen, pce_dev->iobase + |
| 1502 | CRYPTO_ENCR_SEG_SIZE_REG); |
| 1503 | |
| 1504 | /* write encr start */ |
| 1505 | QCE_WRITE_REG(coffset & 0xffff, pce_dev->iobase + |
| 1506 | CRYPTO_ENCR_SEG_START_REG); |
| 1507 | |
| 1508 | if (q_req->auth_alg == QCE_HASH_SHA1_HMAC) |
| 1509 | a_cfg = pce_dev->reg.auth_cfg_aead_sha1_hmac; |
| 1510 | else |
| 1511 | a_cfg = pce_dev->reg.auth_cfg_aead_sha256_hmac; |
| 1512 | |
| 1513 | if (q_req->dir == QCE_ENCRYPT) |
| 1514 | a_cfg |= (CRYPTO_AUTH_POS_AFTER << CRYPTO_AUTH_POS); |
| 1515 | else |
| 1516 | a_cfg |= (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 1517 | |
| 1518 | /* write auth seg_cfg */ |
| 1519 | QCE_WRITE_REG(a_cfg, pce_dev->iobase + CRYPTO_AUTH_SEG_CFG_REG); |
| 1520 | |
| 1521 | /* write auth seg_size */ |
| 1522 | QCE_WRITE_REG(totallen_in, pce_dev->iobase + CRYPTO_AUTH_SEG_SIZE_REG); |
| 1523 | |
| 1524 | /* write auth_seg_start */ |
| 1525 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_START_REG); |
| 1526 | |
| 1527 | |
| 1528 | /* write seg_size */ |
| 1529 | QCE_WRITE_REG(totallen_in, pce_dev->iobase + CRYPTO_SEG_SIZE_REG); |
| 1530 | |
| 1531 | |
| 1532 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase + |
| 1533 | |
| 1534 | CRYPTO_CONFIG_REG)); |
| 1535 | /* issue go to crypto */ |
| 1536 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 1537 | (1 << CRYPTO_CLR_CNTXT)), |
| 1538 | pce_dev->iobase + CRYPTO_GOPROC_REG); |
| 1539 | /* |
| 1540 | * Ensure previous instructions (setting the GO register) |
| 1541 | * was completed before issuing a DMA transfer request |
| 1542 | */ |
| 1543 | mb(); |
| 1544 | return 0; |
| 1545 | }; |
| 1546 | |
| 1547 | static int _ce_setup_cipher_direct(struct qce_device *pce_dev, |
| 1548 | struct qce_req *creq, uint32_t totallen_in, uint32_t coffset) |
| 1549 | { |
| 1550 | uint32_t enckey32[(MAX_CIPHER_KEY_SIZE * 2)/sizeof(uint32_t)] = { |
| 1551 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 1552 | uint32_t enciv32[MAX_IV_LENGTH / sizeof(uint32_t)] = { |
| 1553 | 0, 0, 0, 0}; |
| 1554 | uint32_t enck_size_in_word = 0; |
| 1555 | uint32_t key_size; |
| 1556 | bool use_hw_key = false; |
| 1557 | bool use_pipe_key = false; |
| 1558 | uint32_t encr_cfg = 0; |
| 1559 | uint32_t ivsize = creq->ivsize; |
| 1560 | int i; |
| 1561 | |
| 1562 | /* clear status */ |
| 1563 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_STATUS_REG); |
| 1564 | |
| 1565 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_be, (pce_dev->iobase + |
| 1566 | CRYPTO_CONFIG_REG)); |
| 1567 | /* |
| 1568 | * Ensure previous instructions (setting the CONFIG register) |
| 1569 | * was completed before issuing starting to set other config register |
| 1570 | * This is to ensure the configurations are done in correct endian-ness |
| 1571 | * as set in the CONFIG registers |
| 1572 | */ |
| 1573 | mb(); |
| 1574 | |
| 1575 | if (creq->mode == QCE_MODE_XTS) |
| 1576 | key_size = creq->encklen/2; |
| 1577 | else |
| 1578 | key_size = creq->encklen; |
| 1579 | |
| 1580 | if ((creq->flags & QCRYPTO_CTX_USE_HW_KEY) == QCRYPTO_CTX_USE_HW_KEY) { |
| 1581 | use_hw_key = true; |
| 1582 | } else { |
| 1583 | if ((creq->flags & QCRYPTO_CTX_USE_PIPE_KEY) == |
| 1584 | QCRYPTO_CTX_USE_PIPE_KEY) |
| 1585 | use_pipe_key = true; |
| 1586 | } |
| 1587 | if ((use_pipe_key == false) && (use_hw_key == false)) { |
| 1588 | _byte_stream_to_net_words(enckey32, creq->enckey, key_size); |
| 1589 | enck_size_in_word = key_size/sizeof(uint32_t); |
| 1590 | } |
| 1591 | if ((creq->op == QCE_REQ_AEAD) && (creq->mode == QCE_MODE_CCM)) { |
| 1592 | uint32_t authklen32 = creq->encklen/sizeof(uint32_t); |
| 1593 | uint32_t noncelen32 = MAX_NONCE/sizeof(uint32_t); |
| 1594 | uint32_t nonce32[MAX_NONCE/sizeof(uint32_t)] = {0, 0, 0, 0}; |
| 1595 | uint32_t auth_cfg = 0; |
| 1596 | |
| 1597 | /* Clear auth_ivn, auth_keyn registers */ |
| 1598 | for (i = 0; i < 16; i++) { |
| 1599 | QCE_WRITE_REG(0, (pce_dev->iobase + |
| 1600 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)))); |
| 1601 | QCE_WRITE_REG(0, (pce_dev->iobase + |
| 1602 | (CRYPTO_AUTH_KEY0_REG + i*sizeof(uint32_t)))); |
| 1603 | } |
| 1604 | /* write auth_bytecnt 0/1/2/3, start with 0 */ |
| 1605 | for (i = 0; i < 4; i++) |
| 1606 | QCE_WRITE_REG(0, pce_dev->iobase + |
| 1607 | CRYPTO_AUTH_BYTECNT0_REG + |
| 1608 | i * sizeof(uint32_t)); |
| 1609 | /* write nonce */ |
| 1610 | _byte_stream_to_net_words(nonce32, creq->nonce, MAX_NONCE); |
| 1611 | for (i = 0; i < noncelen32; i++) |
| 1612 | QCE_WRITE_REG(nonce32[i], pce_dev->iobase + |
| 1613 | CRYPTO_AUTH_INFO_NONCE0_REG + |
| 1614 | (i*sizeof(uint32_t))); |
| 1615 | |
| 1616 | if (creq->authklen == AES128_KEY_SIZE) |
| 1617 | auth_cfg = pce_dev->reg.auth_cfg_aes_ccm_128; |
| 1618 | else { |
| 1619 | if (creq->authklen == AES256_KEY_SIZE) |
| 1620 | auth_cfg = pce_dev->reg.auth_cfg_aes_ccm_256; |
| 1621 | } |
| 1622 | if (creq->dir == QCE_ENCRYPT) |
| 1623 | auth_cfg |= (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 1624 | else |
| 1625 | auth_cfg |= (CRYPTO_AUTH_POS_AFTER << CRYPTO_AUTH_POS); |
| 1626 | auth_cfg |= ((creq->authsize - 1) << CRYPTO_AUTH_SIZE); |
| 1627 | |
| 1628 | if (use_hw_key == true) { |
| 1629 | auth_cfg |= (1 << CRYPTO_USE_HW_KEY_AUTH); |
| 1630 | } else { |
| 1631 | auth_cfg &= ~(1 << CRYPTO_USE_HW_KEY_AUTH); |
| 1632 | /* write auth key */ |
| 1633 | for (i = 0; i < authklen32; i++) |
| 1634 | QCE_WRITE_REG(enckey32[i], pce_dev->iobase + |
| 1635 | CRYPTO_AUTH_KEY0_REG + (i*sizeof(uint32_t))); |
| 1636 | } |
| 1637 | QCE_WRITE_REG(auth_cfg, pce_dev->iobase + |
| 1638 | CRYPTO_AUTH_SEG_CFG_REG); |
| 1639 | if (creq->dir == QCE_ENCRYPT) { |
| 1640 | QCE_WRITE_REG(totallen_in, pce_dev->iobase + |
| 1641 | CRYPTO_AUTH_SEG_SIZE_REG); |
| 1642 | } else { |
| 1643 | QCE_WRITE_REG((totallen_in - creq->authsize), |
| 1644 | pce_dev->iobase + CRYPTO_AUTH_SEG_SIZE_REG); |
| 1645 | } |
| 1646 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_START_REG); |
| 1647 | } else { |
| 1648 | if (creq->op != QCE_REQ_AEAD) |
| 1649 | QCE_WRITE_REG(0, pce_dev->iobase + |
| 1650 | CRYPTO_AUTH_SEG_CFG_REG); |
| 1651 | } |
| 1652 | /* |
| 1653 | * Ensure previous instructions (write to all AUTH registers) |
| 1654 | * was completed before accessing a register that is not in |
| 1655 | * in the same 1K range. |
| 1656 | */ |
| 1657 | mb(); |
| 1658 | switch (creq->mode) { |
| 1659 | case QCE_MODE_ECB: |
| 1660 | if (key_size == AES128_KEY_SIZE) |
| 1661 | encr_cfg = pce_dev->reg.encr_cfg_aes_ecb_128; |
| 1662 | else |
| 1663 | encr_cfg = pce_dev->reg.encr_cfg_aes_ecb_256; |
| 1664 | break; |
| 1665 | case QCE_MODE_CBC: |
| 1666 | if (key_size == AES128_KEY_SIZE) |
| 1667 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_128; |
| 1668 | else |
| 1669 | encr_cfg = pce_dev->reg.encr_cfg_aes_cbc_256; |
| 1670 | break; |
| 1671 | case QCE_MODE_XTS: |
| 1672 | if (key_size == AES128_KEY_SIZE) |
| 1673 | encr_cfg = pce_dev->reg.encr_cfg_aes_xts_128; |
| 1674 | else |
| 1675 | encr_cfg = pce_dev->reg.encr_cfg_aes_xts_256; |
| 1676 | break; |
| 1677 | case QCE_MODE_CCM: |
| 1678 | if (key_size == AES128_KEY_SIZE) |
| 1679 | encr_cfg = pce_dev->reg.encr_cfg_aes_ccm_128; |
| 1680 | else |
| 1681 | encr_cfg = pce_dev->reg.encr_cfg_aes_ccm_256; |
| 1682 | break; |
| 1683 | case QCE_MODE_CTR: |
| 1684 | default: |
| 1685 | if (key_size == AES128_KEY_SIZE) |
| 1686 | encr_cfg = pce_dev->reg.encr_cfg_aes_ctr_128; |
| 1687 | else |
| 1688 | encr_cfg = pce_dev->reg.encr_cfg_aes_ctr_256; |
| 1689 | break; |
| 1690 | } |
| 1691 | |
| 1692 | switch (creq->alg) { |
| 1693 | case CIPHER_ALG_DES: |
| 1694 | if (creq->mode != QCE_MODE_ECB) { |
| 1695 | encr_cfg = pce_dev->reg.encr_cfg_des_cbc; |
| 1696 | _byte_stream_to_net_words(enciv32, creq->iv, ivsize); |
| 1697 | QCE_WRITE_REG(enciv32[0], pce_dev->iobase + |
| 1698 | CRYPTO_CNTR0_IV0_REG); |
| 1699 | QCE_WRITE_REG(enciv32[1], pce_dev->iobase + |
| 1700 | CRYPTO_CNTR1_IV1_REG); |
| 1701 | } else { |
| 1702 | encr_cfg = pce_dev->reg.encr_cfg_des_ecb; |
| 1703 | } |
| 1704 | if (use_hw_key == false) { |
| 1705 | QCE_WRITE_REG(enckey32[0], pce_dev->iobase + |
| 1706 | CRYPTO_ENCR_KEY0_REG); |
| 1707 | QCE_WRITE_REG(enckey32[1], pce_dev->iobase + |
| 1708 | CRYPTO_ENCR_KEY1_REG); |
| 1709 | } |
| 1710 | break; |
| 1711 | case CIPHER_ALG_3DES: |
| 1712 | if (creq->mode != QCE_MODE_ECB) { |
| 1713 | _byte_stream_to_net_words(enciv32, creq->iv, ivsize); |
| 1714 | QCE_WRITE_REG(enciv32[0], pce_dev->iobase + |
| 1715 | CRYPTO_CNTR0_IV0_REG); |
| 1716 | QCE_WRITE_REG(enciv32[1], pce_dev->iobase + |
| 1717 | CRYPTO_CNTR1_IV1_REG); |
| 1718 | encr_cfg = pce_dev->reg.encr_cfg_3des_cbc; |
| 1719 | } else { |
| 1720 | encr_cfg = pce_dev->reg.encr_cfg_3des_ecb; |
| 1721 | } |
| 1722 | if (use_hw_key == false) { |
| 1723 | /* write encr key */ |
| 1724 | for (i = 0; i < 6; i++) |
| 1725 | QCE_WRITE_REG(enckey32[0], (pce_dev->iobase + |
| 1726 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)))); |
| 1727 | } |
| 1728 | break; |
| 1729 | case CIPHER_ALG_AES: |
| 1730 | default: |
| 1731 | if (creq->mode == QCE_MODE_XTS) { |
| 1732 | uint32_t xtskey32[MAX_CIPHER_KEY_SIZE/sizeof(uint32_t)] |
| 1733 | = {0, 0, 0, 0, 0, 0, 0, 0}; |
| 1734 | uint32_t xtsklen = |
| 1735 | creq->encklen/(2 * sizeof(uint32_t)); |
| 1736 | |
| 1737 | if ((use_hw_key == false) && (use_pipe_key == false)) { |
| 1738 | _byte_stream_to_net_words(xtskey32, |
| 1739 | (creq->enckey + creq->encklen/2), |
| 1740 | creq->encklen/2); |
| 1741 | /* write xts encr key */ |
| 1742 | for (i = 0; i < xtsklen; i++) |
| 1743 | QCE_WRITE_REG(xtskey32[i], |
| 1744 | pce_dev->iobase + |
| 1745 | CRYPTO_ENCR_XTS_KEY0_REG + |
| 1746 | (i * sizeof(uint32_t))); |
| 1747 | } |
| 1748 | /* write xts du size */ |
| 1749 | switch (creq->flags & QCRYPTO_CTX_XTS_MASK) { |
| 1750 | case QCRYPTO_CTX_XTS_DU_SIZE_512B: |
| 1751 | QCE_WRITE_REG( |
| 1752 | min((uint32_t)QCE_SECTOR_SIZE, |
| 1753 | creq->cryptlen), pce_dev->iobase + |
| 1754 | CRYPTO_ENCR_XTS_DU_SIZE_REG); |
| 1755 | break; |
| 1756 | case QCRYPTO_CTX_XTS_DU_SIZE_1KB: |
| 1757 | QCE_WRITE_REG( |
| 1758 | min((uint32_t)(QCE_SECTOR_SIZE * 2), |
| 1759 | creq->cryptlen), pce_dev->iobase + |
| 1760 | CRYPTO_ENCR_XTS_DU_SIZE_REG); |
| 1761 | break; |
| 1762 | default: |
| 1763 | QCE_WRITE_REG(creq->cryptlen, |
| 1764 | pce_dev->iobase + |
| 1765 | CRYPTO_ENCR_XTS_DU_SIZE_REG); |
| 1766 | break; |
| 1767 | } |
| 1768 | } |
| 1769 | if (creq->mode != QCE_MODE_ECB) { |
| 1770 | if (creq->mode == QCE_MODE_XTS) |
| 1771 | _byte_stream_swap_to_net_words(enciv32, |
| 1772 | creq->iv, ivsize); |
| 1773 | else |
| 1774 | _byte_stream_to_net_words(enciv32, creq->iv, |
| 1775 | ivsize); |
| 1776 | |
| 1777 | /* write encr cntr iv */ |
| 1778 | for (i = 0; i <= 3; i++) |
| 1779 | QCE_WRITE_REG(enciv32[i], pce_dev->iobase + |
| 1780 | CRYPTO_CNTR0_IV0_REG + |
| 1781 | (i * sizeof(uint32_t))); |
| 1782 | |
| 1783 | if (creq->mode == QCE_MODE_CCM) { |
| 1784 | /* write cntr iv for ccm */ |
| 1785 | for (i = 0; i <= 3; i++) |
| 1786 | QCE_WRITE_REG(enciv32[i], |
| 1787 | pce_dev->iobase + |
| 1788 | CRYPTO_ENCR_CCM_INT_CNTR0_REG + |
| 1789 | (i * sizeof(uint32_t))); |
| 1790 | /* update cntr_iv[3] by one */ |
| 1791 | QCE_WRITE_REG((enciv32[3] + 1), |
| 1792 | pce_dev->iobase + |
| 1793 | CRYPTO_CNTR0_IV0_REG + |
| 1794 | (3 * sizeof(uint32_t))); |
| 1795 | } |
| 1796 | } |
| 1797 | |
| 1798 | if (creq->op == QCE_REQ_ABLK_CIPHER_NO_KEY) { |
| 1799 | encr_cfg |= (CRYPTO_ENCR_KEY_SZ_AES128 << |
| 1800 | CRYPTO_ENCR_KEY_SZ); |
| 1801 | } else { |
| 1802 | if ((use_hw_key == false) && (use_pipe_key == false)) { |
| 1803 | for (i = 0; i < enck_size_in_word; i++) |
| 1804 | QCE_WRITE_REG(enckey32[i], |
| 1805 | pce_dev->iobase + |
| 1806 | CRYPTO_ENCR_KEY0_REG + |
| 1807 | (i * sizeof(uint32_t))); |
| 1808 | } |
| 1809 | } /* else of if (creq->op == QCE_REQ_ABLK_CIPHER_NO_KEY) */ |
| 1810 | break; |
| 1811 | } /* end of switch (creq->mode) */ |
| 1812 | |
| 1813 | if (use_pipe_key) |
| 1814 | encr_cfg |= (CRYPTO_USE_PIPE_KEY_ENCR_ENABLED |
| 1815 | << CRYPTO_USE_PIPE_KEY_ENCR); |
| 1816 | |
| 1817 | /* write encr seg cfg */ |
| 1818 | encr_cfg |= ((creq->dir == QCE_ENCRYPT) ? 1 : 0) << CRYPTO_ENCODE; |
| 1819 | if (use_hw_key == true) |
| 1820 | encr_cfg |= (CRYPTO_USE_HW_KEY << CRYPTO_USE_HW_KEY_ENCR); |
| 1821 | else |
| 1822 | encr_cfg &= ~(CRYPTO_USE_HW_KEY << CRYPTO_USE_HW_KEY_ENCR); |
| 1823 | /* write encr seg cfg */ |
| 1824 | QCE_WRITE_REG(encr_cfg, pce_dev->iobase + CRYPTO_ENCR_SEG_CFG_REG); |
| 1825 | |
| 1826 | /* write encr seg size */ |
| 1827 | if ((creq->mode == QCE_MODE_CCM) && (creq->dir == QCE_DECRYPT)) { |
| 1828 | QCE_WRITE_REG((creq->cryptlen + creq->authsize), |
| 1829 | pce_dev->iobase + CRYPTO_ENCR_SEG_SIZE_REG); |
| 1830 | } else { |
| 1831 | QCE_WRITE_REG(creq->cryptlen, |
| 1832 | pce_dev->iobase + CRYPTO_ENCR_SEG_SIZE_REG); |
| 1833 | } |
| 1834 | |
| 1835 | /* write encr seg start */ |
| 1836 | QCE_WRITE_REG((coffset & 0xffff), |
| 1837 | pce_dev->iobase + CRYPTO_ENCR_SEG_START_REG); |
| 1838 | |
| 1839 | /* write encr counter mask */ |
| 1840 | QCE_WRITE_REG(0xffffffff, |
| 1841 | pce_dev->iobase + CRYPTO_CNTR_MASK_REG); |
| 1842 | QCE_WRITE_REG(0xffffffff, |
| 1843 | pce_dev->iobase + CRYPTO_CNTR_MASK_REG0); |
| 1844 | QCE_WRITE_REG(0xffffffff, |
| 1845 | pce_dev->iobase + CRYPTO_CNTR_MASK_REG1); |
| 1846 | QCE_WRITE_REG(0xffffffff, |
| 1847 | pce_dev->iobase + CRYPTO_CNTR_MASK_REG2); |
| 1848 | |
| 1849 | /* write seg size */ |
| 1850 | QCE_WRITE_REG(totallen_in, pce_dev->iobase + CRYPTO_SEG_SIZE_REG); |
| 1851 | |
| 1852 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase + |
| 1853 | CRYPTO_CONFIG_REG)); |
| 1854 | /* issue go to crypto */ |
| 1855 | if (use_hw_key == false) { |
| 1856 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 1857 | (1 << CRYPTO_CLR_CNTXT)), |
| 1858 | pce_dev->iobase + CRYPTO_GOPROC_REG); |
| 1859 | } else { |
| 1860 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)), |
| 1861 | pce_dev->iobase + CRYPTO_GOPROC_QC_KEY_REG); |
| 1862 | } |
| 1863 | /* |
| 1864 | * Ensure previous instructions (setting the GO register) |
| 1865 | * was completed before issuing a DMA transfer request |
| 1866 | */ |
| 1867 | mb(); |
| 1868 | return 0; |
| 1869 | }; |
| 1870 | |
| 1871 | static int _ce_f9_setup_direct(struct qce_device *pce_dev, |
| 1872 | struct qce_f9_req *req) |
| 1873 | { |
| 1874 | uint32_t ikey32[OTA_KEY_SIZE/sizeof(uint32_t)]; |
| 1875 | uint32_t key_size_in_word = OTA_KEY_SIZE/sizeof(uint32_t); |
| 1876 | uint32_t auth_cfg; |
| 1877 | int i; |
| 1878 | |
| 1879 | switch (req->algorithm) { |
| 1880 | case QCE_OTA_ALGO_KASUMI: |
| 1881 | auth_cfg = pce_dev->reg.auth_cfg_kasumi; |
| 1882 | break; |
| 1883 | case QCE_OTA_ALGO_SNOW3G: |
| 1884 | default: |
| 1885 | auth_cfg = pce_dev->reg.auth_cfg_snow3g; |
| 1886 | break; |
| 1887 | }; |
| 1888 | |
| 1889 | /* clear status */ |
| 1890 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_STATUS_REG); |
| 1891 | |
| 1892 | /* set big endian configuration */ |
| 1893 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_be, (pce_dev->iobase + |
| 1894 | CRYPTO_CONFIG_REG)); |
| 1895 | /* |
| 1896 | * Ensure previous instructions (setting the CONFIG register) |
| 1897 | * was completed before issuing starting to set other config register |
| 1898 | * This is to ensure the configurations are done in correct endian-ness |
| 1899 | * as set in the CONFIG registers |
| 1900 | */ |
| 1901 | mb(); |
| 1902 | |
| 1903 | /* write enc_seg_cfg */ |
| 1904 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_ENCR_SEG_CFG_REG); |
| 1905 | |
| 1906 | /* write ecn_seg_size */ |
| 1907 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_ENCR_SEG_SIZE_REG); |
| 1908 | |
| 1909 | /* write key in CRYPTO_AUTH_IV0-3_REG */ |
| 1910 | _byte_stream_to_net_words(ikey32, &req->ikey[0], OTA_KEY_SIZE); |
| 1911 | for (i = 0; i < key_size_in_word; i++) |
| 1912 | QCE_WRITE_REG(ikey32[i], (pce_dev->iobase + |
| 1913 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)))); |
| 1914 | |
| 1915 | /* write last bits in CRYPTO_AUTH_IV4_REG */ |
| 1916 | QCE_WRITE_REG(req->last_bits, (pce_dev->iobase + |
| 1917 | CRYPTO_AUTH_IV4_REG)); |
| 1918 | |
| 1919 | /* write fresh to CRYPTO_AUTH_BYTECNT0_REG */ |
| 1920 | QCE_WRITE_REG(req->fresh, (pce_dev->iobase + |
| 1921 | CRYPTO_AUTH_BYTECNT0_REG)); |
| 1922 | |
| 1923 | /* write count-i to CRYPTO_AUTH_BYTECNT1_REG */ |
| 1924 | QCE_WRITE_REG(req->count_i, (pce_dev->iobase + |
| 1925 | CRYPTO_AUTH_BYTECNT1_REG)); |
| 1926 | |
| 1927 | /* write auth seg cfg */ |
| 1928 | if (req->direction == QCE_OTA_DIR_DOWNLINK) |
| 1929 | auth_cfg |= BIT(CRYPTO_F9_DIRECTION); |
| 1930 | QCE_WRITE_REG(auth_cfg, pce_dev->iobase + CRYPTO_AUTH_SEG_CFG_REG); |
| 1931 | |
| 1932 | /* write auth seg size */ |
| 1933 | QCE_WRITE_REG(req->msize, pce_dev->iobase + CRYPTO_AUTH_SEG_SIZE_REG); |
| 1934 | |
| 1935 | /* write auth seg start*/ |
| 1936 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_START_REG); |
| 1937 | |
| 1938 | /* write seg size */ |
| 1939 | QCE_WRITE_REG(req->msize, pce_dev->iobase + CRYPTO_SEG_SIZE_REG); |
| 1940 | |
| 1941 | /* set little endian configuration before go*/ |
| 1942 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase + |
| 1943 | CRYPTO_CONFIG_REG)); |
| 1944 | /* write go */ |
| 1945 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 1946 | (1 << CRYPTO_CLR_CNTXT)), |
| 1947 | pce_dev->iobase + CRYPTO_GOPROC_REG); |
| 1948 | /* |
| 1949 | * Ensure previous instructions (setting the GO register) |
| 1950 | * was completed before issuing a DMA transfer request |
| 1951 | */ |
| 1952 | mb(); |
| 1953 | return 0; |
| 1954 | } |
| 1955 | |
| 1956 | static int _ce_f8_setup_direct(struct qce_device *pce_dev, |
| 1957 | struct qce_f8_req *req, bool key_stream_mode, |
| 1958 | uint16_t npkts, uint16_t cipher_offset, uint16_t cipher_size) |
| 1959 | { |
| 1960 | int i = 0; |
| 1961 | uint32_t encr_cfg = 0; |
| 1962 | uint32_t ckey32[OTA_KEY_SIZE/sizeof(uint32_t)]; |
| 1963 | uint32_t key_size_in_word = OTA_KEY_SIZE/sizeof(uint32_t); |
| 1964 | |
| 1965 | switch (req->algorithm) { |
| 1966 | case QCE_OTA_ALGO_KASUMI: |
| 1967 | encr_cfg = pce_dev->reg.encr_cfg_kasumi; |
| 1968 | break; |
| 1969 | case QCE_OTA_ALGO_SNOW3G: |
| 1970 | default: |
| 1971 | encr_cfg = pce_dev->reg.encr_cfg_snow3g; |
| 1972 | break; |
| 1973 | }; |
| 1974 | /* clear status */ |
| 1975 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_STATUS_REG); |
| 1976 | /* set big endian configuration */ |
| 1977 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_be, (pce_dev->iobase + |
| 1978 | CRYPTO_CONFIG_REG)); |
| 1979 | /* write auth seg configuration */ |
| 1980 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_CFG_REG); |
| 1981 | /* write auth seg size */ |
| 1982 | QCE_WRITE_REG(0, pce_dev->iobase + CRYPTO_AUTH_SEG_SIZE_REG); |
| 1983 | |
| 1984 | /* write key */ |
| 1985 | _byte_stream_to_net_words(ckey32, &req->ckey[0], OTA_KEY_SIZE); |
| 1986 | |
| 1987 | for (i = 0; i < key_size_in_word; i++) |
| 1988 | QCE_WRITE_REG(ckey32[i], (pce_dev->iobase + |
| 1989 | (CRYPTO_ENCR_KEY0_REG + i*sizeof(uint32_t)))); |
| 1990 | /* write encr seg cfg */ |
| 1991 | if (key_stream_mode) |
| 1992 | encr_cfg |= BIT(CRYPTO_F8_KEYSTREAM_ENABLE); |
| 1993 | if (req->direction == QCE_OTA_DIR_DOWNLINK) |
| 1994 | encr_cfg |= BIT(CRYPTO_F8_DIRECTION); |
| 1995 | QCE_WRITE_REG(encr_cfg, pce_dev->iobase + |
| 1996 | CRYPTO_ENCR_SEG_CFG_REG); |
| 1997 | |
| 1998 | /* write encr seg start */ |
| 1999 | QCE_WRITE_REG((cipher_offset & 0xffff), pce_dev->iobase + |
| 2000 | CRYPTO_ENCR_SEG_START_REG); |
| 2001 | /* write encr seg size */ |
| 2002 | QCE_WRITE_REG(cipher_size, pce_dev->iobase + |
| 2003 | CRYPTO_ENCR_SEG_SIZE_REG); |
| 2004 | |
| 2005 | /* write seg size */ |
| 2006 | QCE_WRITE_REG(req->data_len, pce_dev->iobase + |
| 2007 | CRYPTO_SEG_SIZE_REG); |
| 2008 | |
| 2009 | /* write cntr0_iv0 for countC */ |
| 2010 | QCE_WRITE_REG(req->count_c, pce_dev->iobase + |
| 2011 | CRYPTO_CNTR0_IV0_REG); |
| 2012 | /* write cntr1_iv1 for nPkts, and bearer */ |
| 2013 | if (npkts == 1) |
| 2014 | npkts = 0; |
| 2015 | QCE_WRITE_REG(req->bearer << CRYPTO_CNTR1_IV1_REG_F8_BEARER | |
| 2016 | npkts << CRYPTO_CNTR1_IV1_REG_F8_PKT_CNT, |
| 2017 | pce_dev->iobase + CRYPTO_CNTR1_IV1_REG); |
| 2018 | |
| 2019 | /* set little endian configuration before go*/ |
| 2020 | QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase + |
| 2021 | CRYPTO_CONFIG_REG)); |
| 2022 | /* write go */ |
| 2023 | QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 2024 | (1 << CRYPTO_CLR_CNTXT)), |
| 2025 | pce_dev->iobase + CRYPTO_GOPROC_REG); |
| 2026 | /* |
| 2027 | * Ensure previous instructions (setting the GO register) |
| 2028 | * was completed before issuing a DMA transfer request |
| 2029 | */ |
| 2030 | mb(); |
| 2031 | return 0; |
| 2032 | } |
| 2033 | |
| 2034 | |
| 2035 | static int _qce_unlock_other_pipes(struct qce_device *pce_dev, int req_info) |
| 2036 | { |
| 2037 | int rc = 0; |
| 2038 | struct ce_sps_data *pce_sps_data = &pce_dev->ce_request_info |
| 2039 | [req_info].ce_sps; |
| 2040 | |
| 2041 | if (pce_dev->no_get_around || pce_dev->support_cmd_dscr == false) |
| 2042 | return rc; |
| 2043 | |
| 2044 | rc = sps_transfer_one(pce_dev->ce_bam_info.consumer.pipe, |
| 2045 | GET_PHYS_ADDR(pce_sps_data-> |
| 2046 | cmdlistptr.unlock_all_pipes.cmdlist), |
| 2047 | 0, NULL, (SPS_IOVEC_FLAG_CMD | SPS_IOVEC_FLAG_UNLOCK)); |
| 2048 | if (rc) { |
| 2049 | pr_err("sps_xfr_one() fail rc=%d", rc); |
| 2050 | rc = -EINVAL; |
| 2051 | } |
| 2052 | return rc; |
| 2053 | } |
| 2054 | |
| 2055 | static inline void qce_free_req_info(struct qce_device *pce_dev, int req_info, |
| 2056 | bool is_complete); |
| 2057 | |
| 2058 | static int _aead_complete(struct qce_device *pce_dev, int req_info) |
| 2059 | { |
| 2060 | struct aead_request *areq; |
| 2061 | unsigned char mac[SHA256_DIGEST_SIZE]; |
| 2062 | uint32_t ccm_fail_status = 0; |
| 2063 | uint32_t result_dump_status; |
| 2064 | int32_t result_status = 0; |
| 2065 | struct ce_request_info *preq_info; |
| 2066 | struct ce_sps_data *pce_sps_data; |
| 2067 | qce_comp_func_ptr_t qce_callback; |
| 2068 | |
| 2069 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 2070 | pce_sps_data = &preq_info->ce_sps; |
| 2071 | qce_callback = preq_info->qce_cb; |
| 2072 | areq = (struct aead_request *) preq_info->areq; |
| 2073 | if (areq->src != areq->dst) { |
| 2074 | qce_dma_unmap_sg(pce_dev->pdev, areq->dst, preq_info->dst_nents, |
| 2075 | DMA_FROM_DEVICE); |
| 2076 | } |
| 2077 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 2078 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 2079 | DMA_TO_DEVICE); |
| 2080 | |
| 2081 | if (preq_info->asg) |
| 2082 | qce_dma_unmap_sg(pce_dev->pdev, preq_info->asg, |
| 2083 | preq_info->assoc_nents, DMA_TO_DEVICE); |
| 2084 | /* check MAC */ |
| 2085 | memcpy(mac, (char *)(&pce_sps_data->result->auth_iv[0]), |
| 2086 | SHA256_DIGEST_SIZE); |
| 2087 | |
| 2088 | /* read status before unlock */ |
| 2089 | if (preq_info->dir == QCE_DECRYPT) { |
| 2090 | if (pce_dev->no_get_around) |
| 2091 | if (pce_dev->no_ccm_mac_status_get_around) |
| 2092 | ccm_fail_status = be32_to_cpu(pce_sps_data-> |
| 2093 | result->status); |
| 2094 | else |
| 2095 | ccm_fail_status = be32_to_cpu(pce_sps_data-> |
| 2096 | result_null->status); |
| 2097 | else |
| 2098 | ccm_fail_status = readl_relaxed(pce_dev->iobase + |
| 2099 | CRYPTO_STATUS_REG); |
| 2100 | } |
| 2101 | if (_qce_unlock_other_pipes(pce_dev, req_info)) { |
| 2102 | qce_free_req_info(pce_dev, req_info, true); |
| 2103 | qce_callback(areq, mac, NULL, -ENXIO); |
| 2104 | return -ENXIO; |
| 2105 | } |
| 2106 | result_dump_status = be32_to_cpu(pce_sps_data->result->status); |
| 2107 | pce_sps_data->result->status = 0; |
| 2108 | |
| 2109 | if (result_dump_status & ((1 << CRYPTO_SW_ERR) | (1 << CRYPTO_AXI_ERR) |
| 2110 | | (1 << CRYPTO_HSD_ERR))) { |
| 2111 | pr_err("aead operation error. Status %x\n", result_dump_status); |
| 2112 | result_status = -ENXIO; |
| 2113 | } else if (pce_sps_data->consumer_status | |
| 2114 | pce_sps_data->producer_status) { |
| 2115 | pr_err("aead sps operation error. sps status %x %x\n", |
| 2116 | pce_sps_data->consumer_status, |
| 2117 | pce_sps_data->producer_status); |
| 2118 | result_status = -ENXIO; |
| 2119 | } |
| 2120 | |
| 2121 | if (preq_info->mode == QCE_MODE_CCM) { |
| 2122 | /* |
| 2123 | * Not from result dump, instead, use the status we just |
| 2124 | * read of device for MAC_FAILED. |
| 2125 | */ |
| 2126 | if (result_status == 0 && (preq_info->dir == QCE_DECRYPT) && |
| 2127 | (ccm_fail_status & (1 << CRYPTO_MAC_FAILED))) |
| 2128 | result_status = -EBADMSG; |
| 2129 | qce_free_req_info(pce_dev, req_info, true); |
| 2130 | qce_callback(areq, mac, NULL, result_status); |
| 2131 | |
| 2132 | } else { |
| 2133 | uint32_t ivsize = 0; |
| 2134 | struct crypto_aead *aead; |
| 2135 | unsigned char iv[NUM_OF_CRYPTO_CNTR_IV_REG * CRYPTO_REG_SIZE]; |
| 2136 | |
| 2137 | aead = crypto_aead_reqtfm(areq); |
| 2138 | ivsize = crypto_aead_ivsize(aead); |
| 2139 | memcpy(iv, (char *)(pce_sps_data->result->encr_cntr_iv), |
| 2140 | sizeof(iv)); |
| 2141 | qce_free_req_info(pce_dev, req_info, true); |
| 2142 | qce_callback(areq, mac, iv, result_status); |
| 2143 | |
| 2144 | } |
| 2145 | return 0; |
| 2146 | }; |
| 2147 | |
| 2148 | static int _sha_complete(struct qce_device *pce_dev, int req_info) |
| 2149 | { |
| 2150 | struct ahash_request *areq; |
| 2151 | unsigned char digest[SHA256_DIGEST_SIZE]; |
| 2152 | uint32_t bytecount32[2]; |
| 2153 | int32_t result_status = 0; |
| 2154 | uint32_t result_dump_status; |
| 2155 | struct ce_request_info *preq_info; |
| 2156 | struct ce_sps_data *pce_sps_data; |
| 2157 | qce_comp_func_ptr_t qce_callback; |
| 2158 | |
| 2159 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 2160 | pce_sps_data = &preq_info->ce_sps; |
| 2161 | qce_callback = preq_info->qce_cb; |
| 2162 | areq = (struct ahash_request *) preq_info->areq; |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 2163 | if (!areq) { |
| 2164 | pr_err("sha operation error. areq is NULL\n"); |
| 2165 | return -ENXIO; |
| 2166 | } |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2167 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 2168 | DMA_TO_DEVICE); |
| 2169 | memcpy(digest, (char *)(&pce_sps_data->result->auth_iv[0]), |
| 2170 | SHA256_DIGEST_SIZE); |
| 2171 | _byte_stream_to_net_words(bytecount32, |
| 2172 | (unsigned char *)pce_sps_data->result->auth_byte_count, |
| 2173 | 2 * CRYPTO_REG_SIZE); |
| 2174 | |
| 2175 | if (_qce_unlock_other_pipes(pce_dev, req_info)) { |
| 2176 | qce_free_req_info(pce_dev, req_info, true); |
| 2177 | qce_callback(areq, digest, (char *)bytecount32, |
| 2178 | -ENXIO); |
| 2179 | return -ENXIO; |
| 2180 | } |
| 2181 | |
| 2182 | result_dump_status = be32_to_cpu(pce_sps_data->result->status); |
| 2183 | pce_sps_data->result->status = 0; |
| 2184 | if (result_dump_status & ((1 << CRYPTO_SW_ERR) | (1 << CRYPTO_AXI_ERR) |
| 2185 | | (1 << CRYPTO_HSD_ERR))) { |
| 2186 | |
| 2187 | pr_err("sha operation error. Status %x\n", result_dump_status); |
| 2188 | result_status = -ENXIO; |
| 2189 | } else if (pce_sps_data->consumer_status) { |
| 2190 | pr_err("sha sps operation error. sps status %x\n", |
| 2191 | pce_sps_data->consumer_status); |
| 2192 | result_status = -ENXIO; |
| 2193 | } |
| 2194 | qce_free_req_info(pce_dev, req_info, true); |
| 2195 | qce_callback(areq, digest, (char *)bytecount32, result_status); |
| 2196 | return 0; |
| 2197 | } |
| 2198 | |
| 2199 | static int _f9_complete(struct qce_device *pce_dev, int req_info) |
| 2200 | { |
| 2201 | uint32_t mac_i; |
| 2202 | int32_t result_status = 0; |
| 2203 | uint32_t result_dump_status; |
| 2204 | struct ce_request_info *preq_info; |
| 2205 | struct ce_sps_data *pce_sps_data; |
| 2206 | qce_comp_func_ptr_t qce_callback; |
| 2207 | void *areq; |
| 2208 | |
| 2209 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 2210 | pce_sps_data = &preq_info->ce_sps; |
| 2211 | qce_callback = preq_info->qce_cb; |
| 2212 | areq = preq_info->areq; |
| 2213 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_src, |
| 2214 | preq_info->ota_size, DMA_TO_DEVICE); |
| 2215 | _byte_stream_to_net_words(&mac_i, |
| 2216 | (char *)(&pce_sps_data->result->auth_iv[0]), |
| 2217 | CRYPTO_REG_SIZE); |
| 2218 | |
| 2219 | if (_qce_unlock_other_pipes(pce_dev, req_info)) { |
| 2220 | qce_free_req_info(pce_dev, req_info, true); |
| 2221 | qce_callback(areq, NULL, NULL, -ENXIO); |
| 2222 | return -ENXIO; |
| 2223 | } |
| 2224 | |
| 2225 | result_dump_status = be32_to_cpu(pce_sps_data->result->status); |
| 2226 | pce_sps_data->result->status = 0; |
| 2227 | if (result_dump_status & ((1 << CRYPTO_SW_ERR) | (1 << CRYPTO_AXI_ERR) |
| 2228 | | (1 << CRYPTO_HSD_ERR))) { |
| 2229 | pr_err("f9 operation error. Status %x\n", result_dump_status); |
| 2230 | result_status = -ENXIO; |
| 2231 | } else if (pce_sps_data->consumer_status | |
| 2232 | pce_sps_data->producer_status) { |
| 2233 | pr_err("f9 sps operation error. sps status %x %x\n", |
| 2234 | pce_sps_data->consumer_status, |
| 2235 | pce_sps_data->producer_status); |
| 2236 | result_status = -ENXIO; |
| 2237 | } |
| 2238 | qce_free_req_info(pce_dev, req_info, true); |
| 2239 | qce_callback(areq, (char *)&mac_i, NULL, result_status); |
| 2240 | |
| 2241 | return 0; |
| 2242 | } |
| 2243 | |
| 2244 | static int _ablk_cipher_complete(struct qce_device *pce_dev, int req_info) |
| 2245 | { |
| 2246 | struct ablkcipher_request *areq; |
| 2247 | unsigned char iv[NUM_OF_CRYPTO_CNTR_IV_REG * CRYPTO_REG_SIZE]; |
| 2248 | int32_t result_status = 0; |
| 2249 | uint32_t result_dump_status; |
| 2250 | struct ce_request_info *preq_info; |
| 2251 | struct ce_sps_data *pce_sps_data; |
| 2252 | qce_comp_func_ptr_t qce_callback; |
| 2253 | |
| 2254 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 2255 | pce_sps_data = &preq_info->ce_sps; |
| 2256 | qce_callback = preq_info->qce_cb; |
| 2257 | areq = (struct ablkcipher_request *) preq_info->areq; |
| 2258 | if (areq->src != areq->dst) { |
| 2259 | qce_dma_unmap_sg(pce_dev->pdev, areq->dst, |
| 2260 | preq_info->dst_nents, DMA_FROM_DEVICE); |
| 2261 | } |
| 2262 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 2263 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 2264 | DMA_TO_DEVICE); |
| 2265 | |
| 2266 | if (_qce_unlock_other_pipes(pce_dev, req_info)) { |
| 2267 | qce_free_req_info(pce_dev, req_info, true); |
| 2268 | qce_callback(areq, NULL, NULL, -ENXIO); |
| 2269 | return -ENXIO; |
| 2270 | } |
| 2271 | result_dump_status = be32_to_cpu(pce_sps_data->result->status); |
| 2272 | pce_sps_data->result->status = 0; |
| 2273 | |
| 2274 | if (result_dump_status & ((1 << CRYPTO_SW_ERR) | (1 << CRYPTO_AXI_ERR) |
| 2275 | | (1 << CRYPTO_HSD_ERR))) { |
| 2276 | pr_err("ablk_cipher operation error. Status %x\n", |
| 2277 | result_dump_status); |
| 2278 | result_status = -ENXIO; |
| 2279 | } else if (pce_sps_data->consumer_status | |
| 2280 | pce_sps_data->producer_status) { |
| 2281 | pr_err("ablk_cipher sps operation error. sps status %x %x\n", |
| 2282 | pce_sps_data->consumer_status, |
| 2283 | pce_sps_data->producer_status); |
| 2284 | result_status = -ENXIO; |
| 2285 | } |
| 2286 | |
| 2287 | if (preq_info->mode == QCE_MODE_ECB) { |
| 2288 | qce_free_req_info(pce_dev, req_info, true); |
| 2289 | qce_callback(areq, NULL, NULL, pce_sps_data->consumer_status | |
| 2290 | result_status); |
| 2291 | } else { |
| 2292 | if (pce_dev->ce_bam_info.minor_version == 0) { |
| 2293 | if (preq_info->mode == QCE_MODE_CBC) { |
| 2294 | if (preq_info->dir == QCE_DECRYPT) |
| 2295 | memcpy(iv, (char *)preq_info->dec_iv, |
| 2296 | sizeof(iv)); |
| 2297 | else |
| 2298 | memcpy(iv, (unsigned char *) |
| 2299 | (sg_virt(areq->src) + |
| 2300 | areq->src->length - 16), |
| 2301 | sizeof(iv)); |
| 2302 | } |
| 2303 | if ((preq_info->mode == QCE_MODE_CTR) || |
| 2304 | (preq_info->mode == QCE_MODE_XTS)) { |
| 2305 | uint32_t num_blk = 0; |
| 2306 | uint32_t cntr_iv3 = 0; |
| 2307 | unsigned long long cntr_iv64 = 0; |
| 2308 | unsigned char *b = (unsigned char *)(&cntr_iv3); |
| 2309 | |
| 2310 | memcpy(iv, areq->info, sizeof(iv)); |
| 2311 | if (preq_info->mode != QCE_MODE_XTS) |
| 2312 | num_blk = areq->nbytes/16; |
| 2313 | else |
| 2314 | num_blk = 1; |
| 2315 | cntr_iv3 = ((*(iv + 12) << 24) & 0xff000000) | |
| 2316 | (((*(iv + 13)) << 16) & 0xff0000) | |
| 2317 | (((*(iv + 14)) << 8) & 0xff00) | |
| 2318 | (*(iv + 15) & 0xff); |
| 2319 | cntr_iv64 = |
| 2320 | (((unsigned long long)cntr_iv3 & |
| 2321 | 0xFFFFFFFFULL) + |
| 2322 | (unsigned long long)num_blk) % |
| 2323 | (unsigned long long)(0x100000000ULL); |
| 2324 | |
| 2325 | cntr_iv3 = (u32)(cntr_iv64 & 0xFFFFFFFF); |
| 2326 | *(iv + 15) = (char)(*b); |
| 2327 | *(iv + 14) = (char)(*(b + 1)); |
| 2328 | *(iv + 13) = (char)(*(b + 2)); |
| 2329 | *(iv + 12) = (char)(*(b + 3)); |
| 2330 | } |
| 2331 | } else { |
| 2332 | memcpy(iv, |
| 2333 | (char *)(pce_sps_data->result->encr_cntr_iv), |
| 2334 | sizeof(iv)); |
| 2335 | } |
| 2336 | qce_free_req_info(pce_dev, req_info, true); |
| 2337 | qce_callback(areq, NULL, iv, result_status); |
| 2338 | } |
| 2339 | return 0; |
| 2340 | } |
| 2341 | |
| 2342 | static int _f8_complete(struct qce_device *pce_dev, int req_info) |
| 2343 | { |
| 2344 | int32_t result_status = 0; |
| 2345 | uint32_t result_dump_status; |
| 2346 | uint32_t result_dump_status2; |
| 2347 | struct ce_request_info *preq_info; |
| 2348 | struct ce_sps_data *pce_sps_data; |
| 2349 | qce_comp_func_ptr_t qce_callback; |
| 2350 | void *areq; |
| 2351 | |
| 2352 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 2353 | pce_sps_data = &preq_info->ce_sps; |
| 2354 | qce_callback = preq_info->qce_cb; |
| 2355 | areq = preq_info->areq; |
| 2356 | if (preq_info->phy_ota_dst) |
| 2357 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_dst, |
| 2358 | preq_info->ota_size, DMA_FROM_DEVICE); |
| 2359 | if (preq_info->phy_ota_src) |
| 2360 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_src, |
| 2361 | preq_info->ota_size, (preq_info->phy_ota_dst) ? |
| 2362 | DMA_TO_DEVICE : DMA_BIDIRECTIONAL); |
| 2363 | |
| 2364 | if (_qce_unlock_other_pipes(pce_dev, req_info)) { |
| 2365 | qce_free_req_info(pce_dev, req_info, true); |
| 2366 | qce_callback(areq, NULL, NULL, -ENXIO); |
| 2367 | return -ENXIO; |
| 2368 | } |
| 2369 | result_dump_status = be32_to_cpu(pce_sps_data->result->status); |
| 2370 | result_dump_status2 = be32_to_cpu(pce_sps_data->result->status2); |
| 2371 | |
| 2372 | if ((result_dump_status & ((1 << CRYPTO_SW_ERR) | (1 << CRYPTO_AXI_ERR) |
| 2373 | | (1 << CRYPTO_HSD_ERR)))) { |
| 2374 | pr_err( |
| 2375 | "f8 oper error. Dump Sta %x Sta2 %x req %d\n", |
| 2376 | result_dump_status, result_dump_status2, req_info); |
| 2377 | result_status = -ENXIO; |
| 2378 | } else if (pce_sps_data->consumer_status | |
| 2379 | pce_sps_data->producer_status) { |
| 2380 | pr_err("f8 sps operation error. sps status %x %x\n", |
| 2381 | pce_sps_data->consumer_status, |
| 2382 | pce_sps_data->producer_status); |
| 2383 | result_status = -ENXIO; |
| 2384 | } |
| 2385 | pce_sps_data->result->status = 0; |
| 2386 | pce_sps_data->result->status2 = 0; |
| 2387 | qce_free_req_info(pce_dev, req_info, true); |
| 2388 | qce_callback(areq, NULL, NULL, result_status); |
| 2389 | return 0; |
| 2390 | } |
| 2391 | |
| 2392 | static void _qce_sps_iovec_count_init(struct qce_device *pce_dev, int req_info) |
| 2393 | { |
| 2394 | struct ce_sps_data *pce_sps_data = &pce_dev->ce_request_info[req_info] |
| 2395 | .ce_sps; |
| 2396 | pce_sps_data->in_transfer.iovec_count = 0; |
| 2397 | pce_sps_data->out_transfer.iovec_count = 0; |
| 2398 | } |
| 2399 | |
| 2400 | static void _qce_set_flag(struct sps_transfer *sps_bam_pipe, uint32_t flag) |
| 2401 | { |
| 2402 | struct sps_iovec *iovec; |
| 2403 | |
| 2404 | if (sps_bam_pipe->iovec_count == 0) |
| 2405 | return; |
| 2406 | iovec = sps_bam_pipe->iovec + (sps_bam_pipe->iovec_count - 1); |
| 2407 | iovec->flags |= flag; |
| 2408 | } |
| 2409 | |
| 2410 | static int _qce_sps_add_data(dma_addr_t paddr, uint32_t len, |
| 2411 | struct sps_transfer *sps_bam_pipe) |
| 2412 | { |
| 2413 | struct sps_iovec *iovec = sps_bam_pipe->iovec + |
| 2414 | sps_bam_pipe->iovec_count; |
| 2415 | uint32_t data_cnt; |
| 2416 | |
| 2417 | while (len > 0) { |
| 2418 | if (sps_bam_pipe->iovec_count == QCE_MAX_NUM_DSCR) { |
| 2419 | pr_err("Num of descrptor %d exceed max (%d)", |
| 2420 | sps_bam_pipe->iovec_count, |
| 2421 | (uint32_t)QCE_MAX_NUM_DSCR); |
| 2422 | return -ENOMEM; |
| 2423 | } |
| 2424 | if (len > SPS_MAX_PKT_SIZE) |
| 2425 | data_cnt = SPS_MAX_PKT_SIZE; |
| 2426 | else |
| 2427 | data_cnt = len; |
| 2428 | iovec->size = data_cnt; |
| 2429 | iovec->addr = SPS_GET_LOWER_ADDR(paddr); |
| 2430 | iovec->flags = SPS_GET_UPPER_ADDR(paddr); |
| 2431 | sps_bam_pipe->iovec_count++; |
| 2432 | iovec++; |
| 2433 | paddr += data_cnt; |
| 2434 | len -= data_cnt; |
| 2435 | } |
| 2436 | return 0; |
| 2437 | } |
| 2438 | |
| 2439 | static int _qce_sps_add_sg_data(struct qce_device *pce_dev, |
| 2440 | struct scatterlist *sg_src, uint32_t nbytes, |
| 2441 | struct sps_transfer *sps_bam_pipe) |
| 2442 | { |
| 2443 | uint32_t data_cnt, len; |
| 2444 | dma_addr_t addr; |
| 2445 | struct sps_iovec *iovec = sps_bam_pipe->iovec + |
| 2446 | sps_bam_pipe->iovec_count; |
| 2447 | |
| 2448 | while (nbytes > 0) { |
| 2449 | len = min(nbytes, sg_dma_len(sg_src)); |
| 2450 | nbytes -= len; |
| 2451 | addr = sg_dma_address(sg_src); |
| 2452 | if (pce_dev->ce_bam_info.minor_version == 0) |
| 2453 | len = ALIGN(len, pce_dev->ce_bam_info.ce_burst_size); |
| 2454 | while (len > 0) { |
| 2455 | if (sps_bam_pipe->iovec_count == QCE_MAX_NUM_DSCR) { |
| 2456 | pr_err("Num of descrptor %d exceed max (%d)", |
| 2457 | sps_bam_pipe->iovec_count, |
| 2458 | (uint32_t)QCE_MAX_NUM_DSCR); |
| 2459 | return -ENOMEM; |
| 2460 | } |
| 2461 | if (len > SPS_MAX_PKT_SIZE) { |
| 2462 | data_cnt = SPS_MAX_PKT_SIZE; |
| 2463 | iovec->size = data_cnt; |
| 2464 | iovec->addr = SPS_GET_LOWER_ADDR(addr); |
| 2465 | iovec->flags = SPS_GET_UPPER_ADDR(addr); |
| 2466 | } else { |
| 2467 | data_cnt = len; |
| 2468 | iovec->size = data_cnt; |
| 2469 | iovec->addr = SPS_GET_LOWER_ADDR(addr); |
| 2470 | iovec->flags = SPS_GET_UPPER_ADDR(addr); |
| 2471 | } |
| 2472 | iovec++; |
| 2473 | sps_bam_pipe->iovec_count++; |
| 2474 | addr += data_cnt; |
| 2475 | len -= data_cnt; |
| 2476 | } |
| 2477 | sg_src = sg_next(sg_src); |
| 2478 | } |
| 2479 | return 0; |
| 2480 | } |
| 2481 | |
| 2482 | static int _qce_sps_add_sg_data_off(struct qce_device *pce_dev, |
| 2483 | struct scatterlist *sg_src, uint32_t nbytes, uint32_t off, |
| 2484 | struct sps_transfer *sps_bam_pipe) |
| 2485 | { |
| 2486 | uint32_t data_cnt, len; |
| 2487 | dma_addr_t addr; |
| 2488 | struct sps_iovec *iovec = sps_bam_pipe->iovec + |
| 2489 | sps_bam_pipe->iovec_count; |
| 2490 | unsigned int res_within_sg; |
| 2491 | |
| 2492 | if (!sg_src) |
| 2493 | return -ENOENT; |
| 2494 | res_within_sg = sg_dma_len(sg_src); |
| 2495 | |
| 2496 | while (off > 0) { |
| 2497 | if (!sg_src) { |
| 2498 | pr_err("broken sg list off %d nbytes %d\n", |
| 2499 | off, nbytes); |
| 2500 | return -ENOENT; |
| 2501 | } |
| 2502 | len = sg_dma_len(sg_src); |
| 2503 | if (off < len) { |
| 2504 | res_within_sg = len - off; |
| 2505 | break; |
| 2506 | } |
| 2507 | off -= len; |
| 2508 | sg_src = sg_next(sg_src); |
| 2509 | if (sg_src) |
| 2510 | res_within_sg = sg_dma_len(sg_src); |
| 2511 | } |
| 2512 | while (nbytes > 0 && sg_src) { |
| 2513 | len = min(nbytes, res_within_sg); |
| 2514 | nbytes -= len; |
| 2515 | addr = sg_dma_address(sg_src) + off; |
| 2516 | if (pce_dev->ce_bam_info.minor_version == 0) |
| 2517 | len = ALIGN(len, pce_dev->ce_bam_info.ce_burst_size); |
| 2518 | while (len > 0) { |
| 2519 | if (sps_bam_pipe->iovec_count == QCE_MAX_NUM_DSCR) { |
| 2520 | pr_err("Num of descrptor %d exceed max (%d)", |
| 2521 | sps_bam_pipe->iovec_count, |
| 2522 | (uint32_t)QCE_MAX_NUM_DSCR); |
| 2523 | return -ENOMEM; |
| 2524 | } |
| 2525 | if (len > SPS_MAX_PKT_SIZE) { |
| 2526 | data_cnt = SPS_MAX_PKT_SIZE; |
| 2527 | iovec->size = data_cnt; |
| 2528 | iovec->addr = SPS_GET_LOWER_ADDR(addr); |
| 2529 | iovec->flags = SPS_GET_UPPER_ADDR(addr); |
| 2530 | } else { |
| 2531 | data_cnt = len; |
| 2532 | iovec->size = data_cnt; |
| 2533 | iovec->addr = SPS_GET_LOWER_ADDR(addr); |
| 2534 | iovec->flags = SPS_GET_UPPER_ADDR(addr); |
| 2535 | } |
| 2536 | iovec++; |
| 2537 | sps_bam_pipe->iovec_count++; |
| 2538 | addr += data_cnt; |
| 2539 | len -= data_cnt; |
| 2540 | } |
| 2541 | if (nbytes) { |
| 2542 | sg_src = sg_next(sg_src); |
| 2543 | if (!sg_src) { |
| 2544 | pr_err("more data bytes %d\n", nbytes); |
| 2545 | return -ENOMEM; |
| 2546 | } |
| 2547 | res_within_sg = sg_dma_len(sg_src); |
| 2548 | off = 0; |
| 2549 | } |
| 2550 | } |
| 2551 | return 0; |
| 2552 | } |
| 2553 | |
| 2554 | static int _qce_sps_add_cmd(struct qce_device *pce_dev, uint32_t flag, |
| 2555 | struct qce_cmdlist_info *cmdptr, |
| 2556 | struct sps_transfer *sps_bam_pipe) |
| 2557 | { |
| 2558 | dma_addr_t paddr = GET_PHYS_ADDR(cmdptr->cmdlist); |
| 2559 | struct sps_iovec *iovec = sps_bam_pipe->iovec + |
| 2560 | sps_bam_pipe->iovec_count; |
| 2561 | iovec->size = cmdptr->size; |
| 2562 | iovec->addr = SPS_GET_LOWER_ADDR(paddr); |
| 2563 | iovec->flags = SPS_GET_UPPER_ADDR(paddr) | SPS_IOVEC_FLAG_CMD | flag; |
| 2564 | sps_bam_pipe->iovec_count++; |
| 2565 | if (sps_bam_pipe->iovec_count >= QCE_MAX_NUM_DSCR) { |
| 2566 | pr_err("Num of descrptor %d exceed max (%d)", |
| 2567 | sps_bam_pipe->iovec_count, (uint32_t)QCE_MAX_NUM_DSCR); |
| 2568 | return -ENOMEM; |
| 2569 | } |
| 2570 | return 0; |
| 2571 | } |
| 2572 | |
| 2573 | static int _qce_sps_transfer(struct qce_device *pce_dev, int req_info) |
| 2574 | { |
| 2575 | int rc = 0; |
| 2576 | struct ce_sps_data *pce_sps_data; |
| 2577 | |
| 2578 | pce_sps_data = &pce_dev->ce_request_info[req_info].ce_sps; |
| 2579 | pce_sps_data->out_transfer.user = |
| 2580 | (void *)((uintptr_t)(CRYPTO_REQ_USER_PAT | |
| 2581 | (unsigned int) req_info)); |
| 2582 | pce_sps_data->in_transfer.user = |
| 2583 | (void *)((uintptr_t)(CRYPTO_REQ_USER_PAT | |
| 2584 | (unsigned int) req_info)); |
| 2585 | _qce_dump_descr_fifos_dbg(pce_dev, req_info); |
| 2586 | |
| 2587 | if (pce_sps_data->in_transfer.iovec_count) { |
| 2588 | rc = sps_transfer(pce_dev->ce_bam_info.consumer.pipe, |
| 2589 | &pce_sps_data->in_transfer); |
| 2590 | if (rc) { |
| 2591 | pr_err("sps_xfr() fail (consumer pipe=0x%lx) rc = %d\n", |
| 2592 | (uintptr_t)pce_dev->ce_bam_info.consumer.pipe, |
| 2593 | rc); |
| 2594 | goto ret; |
| 2595 | } |
| 2596 | } |
| 2597 | rc = sps_transfer(pce_dev->ce_bam_info.producer.pipe, |
| 2598 | &pce_sps_data->out_transfer); |
| 2599 | if (rc) |
| 2600 | pr_err("sps_xfr() fail (producer pipe=0x%lx) rc = %d\n", |
| 2601 | (uintptr_t)pce_dev->ce_bam_info.producer.pipe, rc); |
| 2602 | ret: |
| 2603 | if (rc) |
| 2604 | _qce_dump_descr_fifos(pce_dev, req_info); |
| 2605 | return rc; |
| 2606 | } |
| 2607 | |
| 2608 | /** |
| 2609 | * Allocate and Connect a CE peripheral's SPS endpoint |
| 2610 | * |
| 2611 | * This function allocates endpoint context and |
| 2612 | * connect it with memory endpoint by calling |
| 2613 | * appropriate SPS driver APIs. |
| 2614 | * |
| 2615 | * Also registers a SPS callback function with |
| 2616 | * SPS driver |
| 2617 | * |
| 2618 | * This function should only be called once typically |
| 2619 | * during driver probe. |
| 2620 | * |
| 2621 | * @pce_dev - Pointer to qce_device structure |
| 2622 | * @ep - Pointer to sps endpoint data structure |
| 2623 | * @is_produce - 1 means Producer endpoint |
| 2624 | * 0 means Consumer endpoint |
| 2625 | * |
| 2626 | * @return - 0 if successful else negative value. |
| 2627 | * |
| 2628 | */ |
| 2629 | static int qce_sps_init_ep_conn(struct qce_device *pce_dev, |
| 2630 | struct qce_sps_ep_conn_data *ep, |
| 2631 | bool is_producer) |
| 2632 | { |
| 2633 | int rc = 0; |
| 2634 | struct sps_pipe *sps_pipe_info; |
| 2635 | struct sps_connect *sps_connect_info = &ep->connect; |
| 2636 | struct sps_register_event *sps_event = &ep->event; |
| 2637 | |
| 2638 | /* Allocate endpoint context */ |
| 2639 | sps_pipe_info = sps_alloc_endpoint(); |
| 2640 | if (!sps_pipe_info) { |
| 2641 | pr_err("sps_alloc_endpoint() failed!!! is_producer=%d", |
| 2642 | is_producer); |
| 2643 | rc = -ENOMEM; |
| 2644 | goto out; |
| 2645 | } |
| 2646 | /* Now save the sps pipe handle */ |
| 2647 | ep->pipe = sps_pipe_info; |
| 2648 | |
| 2649 | /* Get default connection configuration for an endpoint */ |
| 2650 | rc = sps_get_config(sps_pipe_info, sps_connect_info); |
| 2651 | if (rc) { |
| 2652 | pr_err("sps_get_config() fail pipe_handle=0x%lx, rc = %d\n", |
| 2653 | (uintptr_t)sps_pipe_info, rc); |
| 2654 | goto get_config_err; |
| 2655 | } |
| 2656 | |
| 2657 | /* Modify the default connection configuration */ |
| 2658 | if (is_producer) { |
| 2659 | /* |
| 2660 | * For CE producer transfer, source should be |
| 2661 | * CE peripheral where as destination should |
| 2662 | * be system memory. |
| 2663 | */ |
| 2664 | sps_connect_info->source = pce_dev->ce_bam_info.bam_handle; |
| 2665 | sps_connect_info->destination = SPS_DEV_HANDLE_MEM; |
| 2666 | /* Producer pipe will handle this connection */ |
| 2667 | sps_connect_info->mode = SPS_MODE_SRC; |
| 2668 | sps_connect_info->options = |
| 2669 | SPS_O_AUTO_ENABLE | SPS_O_DESC_DONE; |
| 2670 | } else { |
| 2671 | /* For CE consumer transfer, source should be |
| 2672 | * system memory where as destination should |
| 2673 | * CE peripheral |
| 2674 | */ |
| 2675 | sps_connect_info->source = SPS_DEV_HANDLE_MEM; |
| 2676 | sps_connect_info->destination = pce_dev->ce_bam_info.bam_handle; |
| 2677 | sps_connect_info->mode = SPS_MODE_DEST; |
| 2678 | sps_connect_info->options = |
| 2679 | SPS_O_AUTO_ENABLE; |
| 2680 | } |
| 2681 | |
| 2682 | /* Producer pipe index */ |
| 2683 | sps_connect_info->src_pipe_index = |
| 2684 | pce_dev->ce_bam_info.src_pipe_index; |
| 2685 | /* Consumer pipe index */ |
| 2686 | sps_connect_info->dest_pipe_index = |
| 2687 | pce_dev->ce_bam_info.dest_pipe_index; |
| 2688 | /* Set pipe group */ |
| 2689 | sps_connect_info->lock_group = pce_dev->ce_bam_info.pipe_pair_index; |
| 2690 | sps_connect_info->event_thresh = 0x10; |
| 2691 | /* |
| 2692 | * Max. no of scatter/gather buffers that can |
| 2693 | * be passed by block layer = 32 (NR_SG). |
| 2694 | * Each BAM descritor needs 64 bits (8 bytes). |
| 2695 | * One BAM descriptor is required per buffer transfer. |
| 2696 | * So we would require total 256 (32 * 8) bytes of descriptor FIFO. |
| 2697 | * But due to HW limitation we need to allocate atleast one extra |
| 2698 | * descriptor memory (256 bytes + 8 bytes). But in order to be |
| 2699 | * in power of 2, we are allocating 512 bytes of memory. |
| 2700 | */ |
| 2701 | sps_connect_info->desc.size = QCE_MAX_NUM_DSCR * MAX_QCE_ALLOC_BAM_REQ * |
| 2702 | sizeof(struct sps_iovec); |
| 2703 | if (sps_connect_info->desc.size > MAX_SPS_DESC_FIFO_SIZE) |
| 2704 | sps_connect_info->desc.size = MAX_SPS_DESC_FIFO_SIZE; |
| 2705 | sps_connect_info->desc.base = dma_alloc_coherent(pce_dev->pdev, |
| 2706 | sps_connect_info->desc.size, |
| 2707 | &sps_connect_info->desc.phys_base, |
| 2708 | GFP_KERNEL); |
| 2709 | if (sps_connect_info->desc.base == NULL) { |
| 2710 | rc = -ENOMEM; |
| 2711 | pr_err("Can not allocate coherent memory for sps data\n"); |
| 2712 | goto get_config_err; |
| 2713 | } |
| 2714 | |
| 2715 | memset(sps_connect_info->desc.base, 0x00, sps_connect_info->desc.size); |
| 2716 | |
| 2717 | /* Establish connection between peripheral and memory endpoint */ |
| 2718 | rc = sps_connect(sps_pipe_info, sps_connect_info); |
| 2719 | if (rc) { |
| 2720 | pr_err("sps_connect() fail pipe_handle=0x%lx, rc = %d\n", |
| 2721 | (uintptr_t)sps_pipe_info, rc); |
| 2722 | goto sps_connect_err; |
| 2723 | } |
| 2724 | |
| 2725 | sps_event->mode = SPS_TRIGGER_CALLBACK; |
| 2726 | sps_event->xfer_done = NULL; |
| 2727 | sps_event->user = (void *)pce_dev; |
| 2728 | if (is_producer) { |
| 2729 | sps_event->options = SPS_O_EOT | SPS_O_DESC_DONE; |
| 2730 | sps_event->callback = _sps_producer_callback; |
| 2731 | rc = sps_register_event(ep->pipe, sps_event); |
| 2732 | if (rc) { |
| 2733 | pr_err("Producer callback registration failed rc=%d\n", |
| 2734 | rc); |
| 2735 | goto sps_connect_err; |
| 2736 | } |
| 2737 | } else { |
| 2738 | sps_event->options = SPS_O_EOT; |
| 2739 | sps_event->callback = NULL; |
| 2740 | } |
| 2741 | |
mohamed sunfeer | c6b8e6d | 2017-06-29 15:13:34 +0530 | [diff] [blame] | 2742 | pr_debug("success, %s : pipe_handle=0x%lx, desc fifo base (phy) = 0x%pK\n", |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2743 | is_producer ? "PRODUCER(RX/OUT)" : "CONSUMER(TX/IN)", |
| 2744 | (uintptr_t)sps_pipe_info, &sps_connect_info->desc.phys_base); |
| 2745 | goto out; |
| 2746 | |
| 2747 | sps_connect_err: |
| 2748 | dma_free_coherent(pce_dev->pdev, |
| 2749 | sps_connect_info->desc.size, |
| 2750 | sps_connect_info->desc.base, |
| 2751 | sps_connect_info->desc.phys_base); |
| 2752 | get_config_err: |
| 2753 | sps_free_endpoint(sps_pipe_info); |
| 2754 | out: |
| 2755 | return rc; |
| 2756 | } |
| 2757 | |
| 2758 | /** |
| 2759 | * Disconnect and Deallocate a CE peripheral's SPS endpoint |
| 2760 | * |
| 2761 | * This function disconnect endpoint and deallocates |
| 2762 | * endpoint context. |
| 2763 | * |
| 2764 | * This function should only be called once typically |
| 2765 | * during driver remove. |
| 2766 | * |
| 2767 | * @pce_dev - Pointer to qce_device structure |
| 2768 | * @ep - Pointer to sps endpoint data structure |
| 2769 | * |
| 2770 | */ |
| 2771 | static void qce_sps_exit_ep_conn(struct qce_device *pce_dev, |
| 2772 | struct qce_sps_ep_conn_data *ep) |
| 2773 | { |
| 2774 | struct sps_pipe *sps_pipe_info = ep->pipe; |
| 2775 | struct sps_connect *sps_connect_info = &ep->connect; |
| 2776 | |
| 2777 | sps_disconnect(sps_pipe_info); |
| 2778 | dma_free_coherent(pce_dev->pdev, |
| 2779 | sps_connect_info->desc.size, |
| 2780 | sps_connect_info->desc.base, |
| 2781 | sps_connect_info->desc.phys_base); |
| 2782 | sps_free_endpoint(sps_pipe_info); |
| 2783 | } |
| 2784 | |
| 2785 | static void qce_sps_release_bam(struct qce_device *pce_dev) |
| 2786 | { |
| 2787 | struct bam_registration_info *pbam; |
| 2788 | |
| 2789 | mutex_lock(&bam_register_lock); |
| 2790 | pbam = pce_dev->pbam; |
| 2791 | if (pbam == NULL) |
| 2792 | goto ret; |
| 2793 | |
| 2794 | pbam->cnt--; |
| 2795 | if (pbam->cnt > 0) |
| 2796 | goto ret; |
| 2797 | |
| 2798 | if (pce_dev->ce_bam_info.bam_handle) { |
| 2799 | sps_deregister_bam_device(pce_dev->ce_bam_info.bam_handle); |
| 2800 | |
| 2801 | pr_debug("deregister bam handle 0x%lx\n", |
| 2802 | pce_dev->ce_bam_info.bam_handle); |
| 2803 | pce_dev->ce_bam_info.bam_handle = 0; |
| 2804 | } |
| 2805 | iounmap(pbam->bam_iobase); |
| 2806 | pr_debug("delete bam 0x%x\n", pbam->bam_mem); |
| 2807 | list_del(&pbam->qlist); |
| 2808 | kfree(pbam); |
| 2809 | |
| 2810 | ret: |
| 2811 | pce_dev->pbam = NULL; |
| 2812 | mutex_unlock(&bam_register_lock); |
| 2813 | } |
| 2814 | |
| 2815 | static int qce_sps_get_bam(struct qce_device *pce_dev) |
| 2816 | { |
| 2817 | int rc = 0; |
| 2818 | struct sps_bam_props bam = {0}; |
| 2819 | struct bam_registration_info *pbam = NULL; |
| 2820 | struct bam_registration_info *p; |
| 2821 | uint32_t bam_cfg = 0; |
| 2822 | |
| 2823 | |
| 2824 | mutex_lock(&bam_register_lock); |
| 2825 | |
| 2826 | list_for_each_entry(p, &qce50_bam_list, qlist) { |
| 2827 | if (p->bam_mem == pce_dev->bam_mem) { |
| 2828 | pbam = p; /* found */ |
| 2829 | break; |
| 2830 | } |
| 2831 | } |
| 2832 | |
| 2833 | if (pbam) { |
| 2834 | pr_debug("found bam 0x%x\n", pbam->bam_mem); |
| 2835 | pbam->cnt++; |
| 2836 | pce_dev->ce_bam_info.bam_handle = pbam->handle; |
| 2837 | pce_dev->ce_bam_info.bam_mem = pbam->bam_mem; |
| 2838 | pce_dev->ce_bam_info.bam_iobase = pbam->bam_iobase; |
| 2839 | pce_dev->pbam = pbam; |
| 2840 | pce_dev->support_cmd_dscr = pbam->support_cmd_dscr; |
| 2841 | goto ret; |
| 2842 | } |
| 2843 | |
| 2844 | pbam = kzalloc(sizeof(struct bam_registration_info), GFP_KERNEL); |
| 2845 | if (!pbam) { |
| 2846 | rc = -ENOMEM; |
| 2847 | goto ret; |
| 2848 | } |
| 2849 | pbam->cnt = 1; |
| 2850 | pbam->bam_mem = pce_dev->bam_mem; |
| 2851 | pbam->bam_iobase = ioremap_nocache(pce_dev->bam_mem, |
| 2852 | pce_dev->bam_mem_size); |
| 2853 | if (!pbam->bam_iobase) { |
| 2854 | kfree(pbam); |
| 2855 | rc = -ENOMEM; |
| 2856 | pr_err("Can not map BAM io memory\n"); |
| 2857 | goto ret; |
| 2858 | } |
| 2859 | pce_dev->ce_bam_info.bam_mem = pbam->bam_mem; |
| 2860 | pce_dev->ce_bam_info.bam_iobase = pbam->bam_iobase; |
| 2861 | pbam->handle = 0; |
| 2862 | pr_debug("allocate bam 0x%x\n", pbam->bam_mem); |
| 2863 | bam_cfg = readl_relaxed(pce_dev->ce_bam_info.bam_iobase + |
| 2864 | CRYPTO_BAM_CNFG_BITS_REG); |
| 2865 | pbam->support_cmd_dscr = (bam_cfg & CRYPTO_BAM_CD_ENABLE_MASK) ? |
| 2866 | true : false; |
| 2867 | if (pbam->support_cmd_dscr == false) { |
| 2868 | pr_info("qce50 don't support command descriptor. bam_cfg%x\n", |
| 2869 | bam_cfg); |
| 2870 | pce_dev->no_get_around = false; |
| 2871 | } |
| 2872 | pce_dev->support_cmd_dscr = pbam->support_cmd_dscr; |
| 2873 | |
| 2874 | bam.phys_addr = pce_dev->ce_bam_info.bam_mem; |
| 2875 | bam.virt_addr = pce_dev->ce_bam_info.bam_iobase; |
| 2876 | |
| 2877 | /* |
| 2878 | * This event thresold value is only significant for BAM-to-BAM |
| 2879 | * transfer. It's ignored for BAM-to-System mode transfer. |
| 2880 | */ |
| 2881 | bam.event_threshold = 0x10; /* Pipe event threshold */ |
| 2882 | /* |
| 2883 | * This threshold controls when the BAM publish |
| 2884 | * the descriptor size on the sideband interface. |
| 2885 | * SPS HW will only be used when |
| 2886 | * data transfer size > 64 bytes. |
| 2887 | */ |
| 2888 | bam.summing_threshold = 64; |
| 2889 | /* SPS driver wll handle the crypto BAM IRQ */ |
| 2890 | bam.irq = (u32)pce_dev->ce_bam_info.bam_irq; |
| 2891 | /* |
| 2892 | * Set flag to indicate BAM global device control is managed |
| 2893 | * remotely. |
| 2894 | */ |
| 2895 | if ((pce_dev->support_cmd_dscr == false) || (pce_dev->is_shared)) |
| 2896 | bam.manage = SPS_BAM_MGR_DEVICE_REMOTE; |
| 2897 | else |
| 2898 | bam.manage = SPS_BAM_MGR_LOCAL; |
| 2899 | |
| 2900 | bam.ee = pce_dev->ce_bam_info.bam_ee; |
| 2901 | bam.ipc_loglevel = QCE_BAM_DEFAULT_IPC_LOGLVL; |
| 2902 | bam.options |= SPS_BAM_CACHED_WP; |
| 2903 | pr_debug("bam physical base=0x%lx\n", (uintptr_t)bam.phys_addr); |
mohamed sunfeer | c6b8e6d | 2017-06-29 15:13:34 +0530 | [diff] [blame] | 2904 | pr_debug("bam virtual base=0x%pK\n", bam.virt_addr); |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2905 | |
| 2906 | /* Register CE Peripheral BAM device to SPS driver */ |
| 2907 | rc = sps_register_bam_device(&bam, &pbam->handle); |
| 2908 | if (rc) { |
| 2909 | pr_err("sps_register_bam_device() failed! err=%d", rc); |
| 2910 | rc = -EIO; |
| 2911 | iounmap(pbam->bam_iobase); |
| 2912 | kfree(pbam); |
| 2913 | goto ret; |
| 2914 | } |
| 2915 | |
| 2916 | pce_dev->pbam = pbam; |
| 2917 | list_add_tail(&pbam->qlist, &qce50_bam_list); |
| 2918 | pce_dev->ce_bam_info.bam_handle = pbam->handle; |
| 2919 | |
| 2920 | ret: |
| 2921 | mutex_unlock(&bam_register_lock); |
| 2922 | |
| 2923 | return rc; |
| 2924 | } |
| 2925 | /** |
| 2926 | * Initialize SPS HW connected with CE core |
| 2927 | * |
| 2928 | * This function register BAM HW resources with |
| 2929 | * SPS driver and then initialize 2 SPS endpoints |
| 2930 | * |
| 2931 | * This function should only be called once typically |
| 2932 | * during driver probe. |
| 2933 | * |
| 2934 | * @pce_dev - Pointer to qce_device structure |
| 2935 | * |
| 2936 | * @return - 0 if successful else negative value. |
| 2937 | * |
| 2938 | */ |
| 2939 | static int qce_sps_init(struct qce_device *pce_dev) |
| 2940 | { |
| 2941 | int rc = 0; |
| 2942 | |
| 2943 | rc = qce_sps_get_bam(pce_dev); |
| 2944 | if (rc) |
| 2945 | return rc; |
| 2946 | pr_debug("BAM device registered. bam_handle=0x%lx\n", |
| 2947 | pce_dev->ce_bam_info.bam_handle); |
| 2948 | |
| 2949 | rc = qce_sps_init_ep_conn(pce_dev, |
| 2950 | &pce_dev->ce_bam_info.producer, true); |
| 2951 | if (rc) |
| 2952 | goto sps_connect_producer_err; |
| 2953 | rc = qce_sps_init_ep_conn(pce_dev, |
| 2954 | &pce_dev->ce_bam_info.consumer, false); |
| 2955 | if (rc) |
| 2956 | goto sps_connect_consumer_err; |
| 2957 | |
| 2958 | pr_info(" QTI MSM CE-BAM at 0x%016llx irq %d\n", |
| 2959 | (unsigned long long)pce_dev->ce_bam_info.bam_mem, |
| 2960 | (unsigned int)pce_dev->ce_bam_info.bam_irq); |
| 2961 | return rc; |
| 2962 | |
| 2963 | sps_connect_consumer_err: |
| 2964 | qce_sps_exit_ep_conn(pce_dev, &pce_dev->ce_bam_info.producer); |
| 2965 | sps_connect_producer_err: |
| 2966 | qce_sps_release_bam(pce_dev); |
| 2967 | return rc; |
| 2968 | } |
| 2969 | |
| 2970 | static inline int qce_alloc_req_info(struct qce_device *pce_dev) |
| 2971 | { |
| 2972 | int i; |
| 2973 | int request_index = pce_dev->ce_request_index; |
| 2974 | |
| 2975 | for (i = 0; i < MAX_QCE_BAM_REQ; i++) { |
| 2976 | request_index++; |
| 2977 | if (request_index >= MAX_QCE_BAM_REQ) |
| 2978 | request_index = 0; |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 2979 | if (atomic_xchg(&pce_dev->ce_request_info[request_index]. |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2980 | in_use, true) == false) { |
| 2981 | pce_dev->ce_request_index = request_index; |
| 2982 | return request_index; |
| 2983 | } |
| 2984 | } |
| 2985 | pr_warn("pcedev %d no reqs available no_of_queued_req %d\n", |
| 2986 | pce_dev->dev_no, atomic_read( |
| 2987 | &pce_dev->no_of_queued_req)); |
| 2988 | return -EBUSY; |
| 2989 | } |
| 2990 | |
| 2991 | static inline void qce_free_req_info(struct qce_device *pce_dev, int req_info, |
| 2992 | bool is_complete) |
| 2993 | { |
| 2994 | pce_dev->ce_request_info[req_info].xfer_type = QCE_XFER_TYPE_LAST; |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 2995 | if (atomic_xchg(&pce_dev->ce_request_info[req_info].in_use, |
| 2996 | false) == true) { |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2997 | if (req_info < MAX_QCE_BAM_REQ && is_complete) |
| 2998 | atomic_dec(&pce_dev->no_of_queued_req); |
| 2999 | } else |
| 3000 | pr_warn("request info %d free already\n", req_info); |
| 3001 | } |
| 3002 | |
| 3003 | static void print_notify_debug(struct sps_event_notify *notify) |
| 3004 | { |
| 3005 | phys_addr_t addr = |
| 3006 | DESC_FULL_ADDR((phys_addr_t) notify->data.transfer.iovec.flags, |
| 3007 | notify->data.transfer.iovec.addr); |
mohamed sunfeer | c6b8e6d | 2017-06-29 15:13:34 +0530 | [diff] [blame] | 3008 | pr_debug("sps ev_id=%d, addr=0x%pa, size=0x%x, flags=0x%x user=0x%pK\n", |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3009 | notify->event_id, &addr, |
| 3010 | notify->data.transfer.iovec.size, |
| 3011 | notify->data.transfer.iovec.flags, |
| 3012 | notify->data.transfer.user); |
| 3013 | } |
| 3014 | |
| 3015 | static void _qce_req_complete(struct qce_device *pce_dev, unsigned int req_info) |
| 3016 | { |
| 3017 | struct ce_request_info *preq_info; |
| 3018 | |
| 3019 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 3020 | |
| 3021 | switch (preq_info->xfer_type) { |
| 3022 | case QCE_XFER_CIPHERING: |
| 3023 | _ablk_cipher_complete(pce_dev, req_info); |
| 3024 | break; |
| 3025 | case QCE_XFER_HASHING: |
| 3026 | _sha_complete(pce_dev, req_info); |
| 3027 | break; |
| 3028 | case QCE_XFER_AEAD: |
| 3029 | _aead_complete(pce_dev, req_info); |
| 3030 | break; |
| 3031 | case QCE_XFER_F8: |
| 3032 | _f8_complete(pce_dev, req_info); |
| 3033 | break; |
| 3034 | case QCE_XFER_F9: |
| 3035 | _f9_complete(pce_dev, req_info); |
| 3036 | break; |
| 3037 | default: |
| 3038 | qce_free_req_info(pce_dev, req_info, true); |
| 3039 | break; |
| 3040 | } |
| 3041 | } |
| 3042 | |
| 3043 | static void qce_multireq_timeout(unsigned long data) |
| 3044 | { |
| 3045 | struct qce_device *pce_dev = (struct qce_device *)data; |
| 3046 | int ret = 0; |
| 3047 | int last_seq; |
| 3048 | unsigned long flags; |
| 3049 | |
| 3050 | last_seq = atomic_read(&pce_dev->bunch_cmd_seq); |
| 3051 | if (last_seq == 0 || |
| 3052 | last_seq != atomic_read(&pce_dev->last_intr_seq)) { |
| 3053 | atomic_set(&pce_dev->last_intr_seq, last_seq); |
| 3054 | mod_timer(&(pce_dev->timer), (jiffies + DELAY_IN_JIFFIES)); |
| 3055 | return; |
| 3056 | } |
| 3057 | /* last bunch mode command time out */ |
| 3058 | |
| 3059 | /* |
| 3060 | * From here to dummy request finish sps request and set owner back |
| 3061 | * to none, we disable interrupt. |
| 3062 | * So it won't get preempted or interrupted. If bam inerrupts happen |
| 3063 | * between, and completion callback gets called from BAM, a new |
| 3064 | * request may be issued by the client driver. Deadlock may happen. |
| 3065 | */ |
| 3066 | local_irq_save(flags); |
| 3067 | if (cmpxchg(&pce_dev->owner, QCE_OWNER_NONE, QCE_OWNER_TIMEOUT) |
| 3068 | != QCE_OWNER_NONE) { |
| 3069 | local_irq_restore(flags); |
| 3070 | mod_timer(&(pce_dev->timer), (jiffies + DELAY_IN_JIFFIES)); |
| 3071 | return; |
| 3072 | } |
| 3073 | |
| 3074 | ret = qce_dummy_req(pce_dev); |
| 3075 | if (ret) |
| 3076 | pr_warn("pcedev %d: Failed to insert dummy req\n", |
| 3077 | pce_dev->dev_no); |
| 3078 | cmpxchg(&pce_dev->owner, QCE_OWNER_TIMEOUT, QCE_OWNER_NONE); |
| 3079 | pce_dev->mode = IN_INTERRUPT_MODE; |
| 3080 | local_irq_restore(flags); |
| 3081 | |
| 3082 | del_timer(&(pce_dev->timer)); |
| 3083 | pce_dev->qce_stats.no_of_timeouts++; |
| 3084 | pr_debug("pcedev %d mode switch to INTR\n", pce_dev->dev_no); |
| 3085 | } |
| 3086 | |
| 3087 | void qce_get_driver_stats(void *handle) |
| 3088 | { |
| 3089 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 3090 | |
| 3091 | if (!_qce50_disp_stats) |
| 3092 | return; |
| 3093 | pr_info("Engine %d timeout occuured %d\n", pce_dev->dev_no, |
| 3094 | pce_dev->qce_stats.no_of_timeouts); |
| 3095 | pr_info("Engine %d dummy request inserted %d\n", pce_dev->dev_no, |
| 3096 | pce_dev->qce_stats.no_of_dummy_reqs); |
| 3097 | if (pce_dev->mode) |
| 3098 | pr_info("Engine %d is in BUNCH MODE\n", pce_dev->dev_no); |
| 3099 | else |
| 3100 | pr_info("Engine %d is in INTERRUPT MODE\n", pce_dev->dev_no); |
| 3101 | pr_info("Engine %d outstanding request %d\n", pce_dev->dev_no, |
| 3102 | atomic_read(&pce_dev->no_of_queued_req)); |
| 3103 | } |
| 3104 | EXPORT_SYMBOL(qce_get_driver_stats); |
| 3105 | |
| 3106 | void qce_clear_driver_stats(void *handle) |
| 3107 | { |
| 3108 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 3109 | |
| 3110 | pce_dev->qce_stats.no_of_timeouts = 0; |
| 3111 | pce_dev->qce_stats.no_of_dummy_reqs = 0; |
| 3112 | } |
| 3113 | EXPORT_SYMBOL(qce_clear_driver_stats); |
| 3114 | |
| 3115 | static void _sps_producer_callback(struct sps_event_notify *notify) |
| 3116 | { |
| 3117 | struct qce_device *pce_dev = (struct qce_device *) |
| 3118 | ((struct sps_event_notify *)notify)->user; |
| 3119 | int rc = 0; |
| 3120 | unsigned int req_info; |
| 3121 | struct ce_sps_data *pce_sps_data; |
| 3122 | struct ce_request_info *preq_info; |
| 3123 | |
| 3124 | print_notify_debug(notify); |
| 3125 | |
| 3126 | req_info = (unsigned int)((uintptr_t)notify->data.transfer.user); |
| 3127 | if ((req_info & 0xffff0000) != CRYPTO_REQ_USER_PAT) { |
| 3128 | pr_warn("request information %d out of range\n", req_info); |
| 3129 | return; |
| 3130 | } |
| 3131 | |
| 3132 | req_info = req_info & 0x00ff; |
| 3133 | if (req_info < 0 || req_info >= MAX_QCE_ALLOC_BAM_REQ) { |
| 3134 | pr_warn("request information %d out of range\n", req_info); |
| 3135 | return; |
| 3136 | } |
| 3137 | |
| 3138 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 3139 | |
| 3140 | pce_sps_data = &preq_info->ce_sps; |
| 3141 | if ((preq_info->xfer_type == QCE_XFER_CIPHERING || |
| 3142 | preq_info->xfer_type == QCE_XFER_AEAD) && |
| 3143 | pce_sps_data->producer_state == QCE_PIPE_STATE_IDLE) { |
| 3144 | pce_sps_data->producer_state = QCE_PIPE_STATE_COMP; |
| 3145 | pce_sps_data->out_transfer.iovec_count = 0; |
| 3146 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 3147 | CRYPTO_RESULT_DUMP_SIZE, |
| 3148 | &pce_sps_data->out_transfer); |
| 3149 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 3150 | SPS_IOVEC_FLAG_INT); |
| 3151 | rc = sps_transfer(pce_dev->ce_bam_info.producer.pipe, |
| 3152 | &pce_sps_data->out_transfer); |
| 3153 | if (rc) { |
| 3154 | pr_err("sps_xfr() fail (producer pipe=0x%lx) rc = %d\n", |
| 3155 | (uintptr_t)pce_dev->ce_bam_info.producer.pipe, |
| 3156 | rc); |
| 3157 | } |
| 3158 | return; |
| 3159 | } |
| 3160 | |
| 3161 | _qce_req_complete(pce_dev, req_info); |
| 3162 | } |
| 3163 | |
| 3164 | /** |
| 3165 | * De-initialize SPS HW connected with CE core |
| 3166 | * |
| 3167 | * This function deinitialize SPS endpoints and then |
| 3168 | * deregisters BAM resources from SPS driver. |
| 3169 | * |
| 3170 | * This function should only be called once typically |
| 3171 | * during driver remove. |
| 3172 | * |
| 3173 | * @pce_dev - Pointer to qce_device structure |
| 3174 | * |
| 3175 | */ |
| 3176 | static void qce_sps_exit(struct qce_device *pce_dev) |
| 3177 | { |
| 3178 | qce_sps_exit_ep_conn(pce_dev, &pce_dev->ce_bam_info.consumer); |
| 3179 | qce_sps_exit_ep_conn(pce_dev, &pce_dev->ce_bam_info.producer); |
| 3180 | qce_sps_release_bam(pce_dev); |
| 3181 | } |
| 3182 | |
| 3183 | static void qce_add_cmd_element(struct qce_device *pdev, |
| 3184 | struct sps_command_element **cmd_ptr, u32 addr, |
| 3185 | u32 data, struct sps_command_element **populate) |
| 3186 | { |
| 3187 | (*cmd_ptr)->addr = (uint32_t)(addr + pdev->phy_iobase); |
| 3188 | (*cmd_ptr)->command = 0; |
| 3189 | (*cmd_ptr)->data = data; |
| 3190 | (*cmd_ptr)->mask = 0xFFFFFFFF; |
| 3191 | (*cmd_ptr)->reserved = 0; |
| 3192 | if (populate != NULL) |
| 3193 | *populate = *cmd_ptr; |
| 3194 | (*cmd_ptr)++; |
| 3195 | } |
| 3196 | |
| 3197 | static int _setup_cipher_aes_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 3198 | unsigned char **pvaddr, enum qce_cipher_mode_enum mode, |
| 3199 | bool key_128) |
| 3200 | { |
| 3201 | struct sps_command_element *ce_vaddr; |
| 3202 | uintptr_t ce_vaddr_start; |
| 3203 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 3204 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3205 | int i = 0; |
| 3206 | uint32_t encr_cfg = 0; |
| 3207 | uint32_t key_reg = 0; |
| 3208 | uint32_t xts_key_reg = 0; |
| 3209 | uint32_t iv_reg = 0; |
| 3210 | |
| 3211 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 3212 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3213 | pdev->ce_bam_info.ce_burst_size); |
| 3214 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3215 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3216 | /* |
| 3217 | * Designate chunks of the allocated memory to various |
| 3218 | * command list pointers related to AES cipher operations defined |
| 3219 | * in ce_cmdlistptrs_ops structure. |
| 3220 | */ |
| 3221 | switch (mode) { |
| 3222 | case QCE_MODE_CBC: |
| 3223 | case QCE_MODE_CTR: |
| 3224 | if (key_128 == true) { |
| 3225 | cmdlistptr->cipher_aes_128_cbc_ctr.cmdlist = |
| 3226 | (uintptr_t)ce_vaddr; |
| 3227 | pcl_info = &(cmdlistptr->cipher_aes_128_cbc_ctr); |
| 3228 | if (mode == QCE_MODE_CBC) |
| 3229 | encr_cfg = pdev->reg.encr_cfg_aes_cbc_128; |
| 3230 | else |
| 3231 | encr_cfg = pdev->reg.encr_cfg_aes_ctr_128; |
| 3232 | iv_reg = 4; |
| 3233 | key_reg = 4; |
| 3234 | xts_key_reg = 0; |
| 3235 | } else { |
| 3236 | cmdlistptr->cipher_aes_256_cbc_ctr.cmdlist = |
| 3237 | (uintptr_t)ce_vaddr; |
| 3238 | pcl_info = &(cmdlistptr->cipher_aes_256_cbc_ctr); |
| 3239 | |
| 3240 | if (mode == QCE_MODE_CBC) |
| 3241 | encr_cfg = pdev->reg.encr_cfg_aes_cbc_256; |
| 3242 | else |
| 3243 | encr_cfg = pdev->reg.encr_cfg_aes_ctr_256; |
| 3244 | iv_reg = 4; |
| 3245 | key_reg = 8; |
| 3246 | xts_key_reg = 0; |
| 3247 | } |
| 3248 | break; |
| 3249 | case QCE_MODE_ECB: |
| 3250 | if (key_128 == true) { |
| 3251 | cmdlistptr->cipher_aes_128_ecb.cmdlist = |
| 3252 | (uintptr_t)ce_vaddr; |
| 3253 | pcl_info = &(cmdlistptr->cipher_aes_128_ecb); |
| 3254 | |
| 3255 | encr_cfg = pdev->reg.encr_cfg_aes_ecb_128; |
| 3256 | iv_reg = 0; |
| 3257 | key_reg = 4; |
| 3258 | xts_key_reg = 0; |
| 3259 | } else { |
| 3260 | cmdlistptr->cipher_aes_256_ecb.cmdlist = |
| 3261 | (uintptr_t)ce_vaddr; |
| 3262 | pcl_info = &(cmdlistptr->cipher_aes_256_ecb); |
| 3263 | |
| 3264 | encr_cfg = pdev->reg.encr_cfg_aes_ecb_256; |
| 3265 | iv_reg = 0; |
| 3266 | key_reg = 8; |
| 3267 | xts_key_reg = 0; |
| 3268 | } |
| 3269 | break; |
| 3270 | case QCE_MODE_XTS: |
| 3271 | if (key_128 == true) { |
| 3272 | cmdlistptr->cipher_aes_128_xts.cmdlist = |
| 3273 | (uintptr_t)ce_vaddr; |
| 3274 | pcl_info = &(cmdlistptr->cipher_aes_128_xts); |
| 3275 | |
| 3276 | encr_cfg = pdev->reg.encr_cfg_aes_xts_128; |
| 3277 | iv_reg = 4; |
| 3278 | key_reg = 4; |
| 3279 | xts_key_reg = 4; |
| 3280 | } else { |
| 3281 | cmdlistptr->cipher_aes_256_xts.cmdlist = |
| 3282 | (uintptr_t)ce_vaddr; |
| 3283 | pcl_info = &(cmdlistptr->cipher_aes_256_xts); |
| 3284 | |
| 3285 | encr_cfg = pdev->reg.encr_cfg_aes_xts_256; |
| 3286 | iv_reg = 4; |
| 3287 | key_reg = 8; |
| 3288 | xts_key_reg = 8; |
| 3289 | } |
| 3290 | break; |
| 3291 | default: |
| 3292 | pr_err("Unknown mode of operation %d received, exiting now\n", |
| 3293 | mode); |
| 3294 | return -EINVAL; |
| 3295 | break; |
| 3296 | } |
| 3297 | |
| 3298 | /* clear status register */ |
| 3299 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, NULL); |
| 3300 | |
| 3301 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3302 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3303 | |
| 3304 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 3305 | &pcl_info->seg_size); |
| 3306 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, encr_cfg, |
| 3307 | &pcl_info->encr_seg_cfg); |
| 3308 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 3309 | &pcl_info->encr_seg_size); |
| 3310 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3311 | &pcl_info->encr_seg_start); |
| 3312 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG, |
| 3313 | (uint32_t)0xffffffff, &pcl_info->encr_mask); |
| 3314 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG0, |
| 3315 | (uint32_t)0xffffffff, NULL); |
| 3316 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG1, |
| 3317 | (uint32_t)0xffffffff, NULL); |
| 3318 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG2, |
| 3319 | (uint32_t)0xffffffff, NULL); |
| 3320 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, 0, |
| 3321 | &pcl_info->auth_seg_cfg); |
| 3322 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_KEY0_REG, 0, |
| 3323 | &pcl_info->encr_key); |
| 3324 | for (i = 1; i < key_reg; i++) |
| 3325 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3326 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)), |
| 3327 | 0, NULL); |
| 3328 | if (xts_key_reg) { |
| 3329 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_XTS_KEY0_REG, |
| 3330 | 0, &pcl_info->encr_xts_key); |
| 3331 | for (i = 1; i < xts_key_reg; i++) |
| 3332 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3333 | (CRYPTO_ENCR_XTS_KEY0_REG + |
| 3334 | i * sizeof(uint32_t)), 0, NULL); |
| 3335 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3336 | CRYPTO_ENCR_XTS_DU_SIZE_REG, 0, |
| 3337 | &pcl_info->encr_xts_du_size); |
| 3338 | } |
| 3339 | if (iv_reg) { |
| 3340 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR0_IV0_REG, 0, |
| 3341 | &pcl_info->encr_cntr_iv); |
| 3342 | for (i = 1; i < iv_reg; i++) |
| 3343 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3344 | (CRYPTO_CNTR0_IV0_REG + i * sizeof(uint32_t)), |
| 3345 | 0, NULL); |
| 3346 | } |
| 3347 | /* Add dummy to align size to burst-size multiple */ |
| 3348 | if (mode == QCE_MODE_XTS) { |
| 3349 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, |
| 3350 | 0, &pcl_info->auth_seg_size); |
| 3351 | } else { |
| 3352 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, |
| 3353 | 0, &pcl_info->auth_seg_size); |
| 3354 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, |
| 3355 | 0, &pcl_info->auth_seg_size); |
| 3356 | } |
| 3357 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3358 | pdev->reg.crypto_cfg_le, NULL); |
| 3359 | |
| 3360 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 3361 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 3362 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 3363 | |
| 3364 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 3365 | *pvaddr = (unsigned char *) ce_vaddr; |
| 3366 | |
| 3367 | return 0; |
| 3368 | } |
| 3369 | |
| 3370 | static int _setup_cipher_des_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 3371 | unsigned char **pvaddr, enum qce_cipher_alg_enum alg, |
| 3372 | bool mode_cbc) |
| 3373 | { |
| 3374 | |
| 3375 | struct sps_command_element *ce_vaddr; |
| 3376 | uintptr_t ce_vaddr_start; |
| 3377 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 3378 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3379 | int i = 0; |
| 3380 | uint32_t encr_cfg = 0; |
| 3381 | uint32_t key_reg = 0; |
| 3382 | uint32_t iv_reg = 0; |
| 3383 | |
| 3384 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 3385 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3386 | pdev->ce_bam_info.ce_burst_size); |
| 3387 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3388 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3389 | |
| 3390 | /* |
| 3391 | * Designate chunks of the allocated memory to various |
| 3392 | * command list pointers related to cipher operations defined |
| 3393 | * in ce_cmdlistptrs_ops structure. |
| 3394 | */ |
| 3395 | switch (alg) { |
| 3396 | case CIPHER_ALG_DES: |
| 3397 | if (mode_cbc) { |
| 3398 | cmdlistptr->cipher_des_cbc.cmdlist = |
| 3399 | (uintptr_t)ce_vaddr; |
| 3400 | pcl_info = &(cmdlistptr->cipher_des_cbc); |
| 3401 | |
| 3402 | |
| 3403 | encr_cfg = pdev->reg.encr_cfg_des_cbc; |
| 3404 | iv_reg = 2; |
| 3405 | key_reg = 2; |
| 3406 | } else { |
| 3407 | cmdlistptr->cipher_des_ecb.cmdlist = |
| 3408 | (uintptr_t)ce_vaddr; |
| 3409 | pcl_info = &(cmdlistptr->cipher_des_ecb); |
| 3410 | |
| 3411 | encr_cfg = pdev->reg.encr_cfg_des_ecb; |
| 3412 | iv_reg = 0; |
| 3413 | key_reg = 2; |
| 3414 | } |
| 3415 | break; |
| 3416 | case CIPHER_ALG_3DES: |
| 3417 | if (mode_cbc) { |
| 3418 | cmdlistptr->cipher_3des_cbc.cmdlist = |
| 3419 | (uintptr_t)ce_vaddr; |
| 3420 | pcl_info = &(cmdlistptr->cipher_3des_cbc); |
| 3421 | |
| 3422 | encr_cfg = pdev->reg.encr_cfg_3des_cbc; |
| 3423 | iv_reg = 2; |
| 3424 | key_reg = 6; |
| 3425 | } else { |
| 3426 | cmdlistptr->cipher_3des_ecb.cmdlist = |
| 3427 | (uintptr_t)ce_vaddr; |
| 3428 | pcl_info = &(cmdlistptr->cipher_3des_ecb); |
| 3429 | |
| 3430 | encr_cfg = pdev->reg.encr_cfg_3des_ecb; |
| 3431 | iv_reg = 0; |
| 3432 | key_reg = 6; |
| 3433 | } |
| 3434 | break; |
| 3435 | default: |
| 3436 | pr_err("Unknown algorithms %d received, exiting now\n", alg); |
| 3437 | return -EINVAL; |
| 3438 | break; |
| 3439 | } |
| 3440 | |
| 3441 | /* clear status register */ |
| 3442 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, NULL); |
| 3443 | |
| 3444 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3445 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3446 | |
| 3447 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 3448 | &pcl_info->seg_size); |
| 3449 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, encr_cfg, |
| 3450 | &pcl_info->encr_seg_cfg); |
| 3451 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 3452 | &pcl_info->encr_seg_size); |
| 3453 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3454 | &pcl_info->encr_seg_start); |
| 3455 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, 0, |
| 3456 | &pcl_info->auth_seg_cfg); |
| 3457 | |
| 3458 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_KEY0_REG, 0, |
| 3459 | &pcl_info->encr_key); |
| 3460 | for (i = 1; i < key_reg; i++) |
| 3461 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3462 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)), |
| 3463 | 0, NULL); |
| 3464 | if (iv_reg) { |
| 3465 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR0_IV0_REG, 0, |
| 3466 | &pcl_info->encr_cntr_iv); |
| 3467 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR1_IV1_REG, 0, |
| 3468 | NULL); |
| 3469 | } |
| 3470 | |
| 3471 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3472 | pdev->reg.crypto_cfg_le, NULL); |
| 3473 | |
| 3474 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 3475 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 3476 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 3477 | |
| 3478 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 3479 | *pvaddr = (unsigned char *) ce_vaddr; |
| 3480 | |
| 3481 | return 0; |
| 3482 | } |
| 3483 | |
| 3484 | static int _setup_cipher_null_cmdlistptrs(struct qce_device *pdev, |
| 3485 | int cri_index, unsigned char **pvaddr) |
| 3486 | { |
| 3487 | struct sps_command_element *ce_vaddr; |
| 3488 | uintptr_t ce_vaddr_start; |
| 3489 | struct qce_cmdlistptr_ops *cmdlistptr = &pdev->ce_request_info |
| 3490 | [cri_index].ce_sps.cmdlistptr; |
| 3491 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3492 | |
| 3493 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3494 | pdev->ce_bam_info.ce_burst_size); |
| 3495 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3496 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3497 | |
| 3498 | cmdlistptr->cipher_null.cmdlist = (uintptr_t)ce_vaddr; |
| 3499 | pcl_info = &(cmdlistptr->cipher_null); |
| 3500 | |
| 3501 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, |
| 3502 | pdev->ce_bam_info.ce_burst_size, NULL); |
| 3503 | |
| 3504 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, |
| 3505 | pdev->reg.encr_cfg_aes_ecb_128, NULL); |
| 3506 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 3507 | NULL); |
| 3508 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3509 | NULL); |
| 3510 | |
| 3511 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, |
| 3512 | 0, NULL); |
| 3513 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, |
| 3514 | 0, NULL); |
| 3515 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, 0, |
| 3516 | NULL); |
| 3517 | |
| 3518 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 3519 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 3520 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 3521 | |
| 3522 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 3523 | *pvaddr = (unsigned char *) ce_vaddr; |
| 3524 | return 0; |
| 3525 | } |
| 3526 | |
| 3527 | static int _setup_auth_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 3528 | unsigned char **pvaddr, enum qce_hash_alg_enum alg, |
| 3529 | bool key_128) |
| 3530 | { |
| 3531 | struct sps_command_element *ce_vaddr; |
| 3532 | uintptr_t ce_vaddr_start; |
| 3533 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 3534 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3535 | int i = 0; |
| 3536 | uint32_t key_reg = 0; |
| 3537 | uint32_t auth_cfg = 0; |
| 3538 | uint32_t iv_reg = 0; |
| 3539 | |
| 3540 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 3541 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3542 | pdev->ce_bam_info.ce_burst_size); |
| 3543 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3544 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3545 | |
| 3546 | /* |
| 3547 | * Designate chunks of the allocated memory to various |
| 3548 | * command list pointers related to authentication operations |
| 3549 | * defined in ce_cmdlistptrs_ops structure. |
| 3550 | */ |
| 3551 | switch (alg) { |
| 3552 | case QCE_HASH_SHA1: |
| 3553 | cmdlistptr->auth_sha1.cmdlist = (uintptr_t)ce_vaddr; |
| 3554 | pcl_info = &(cmdlistptr->auth_sha1); |
| 3555 | |
| 3556 | auth_cfg = pdev->reg.auth_cfg_sha1; |
| 3557 | iv_reg = 5; |
| 3558 | |
| 3559 | /* clear status register */ |
| 3560 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, |
| 3561 | 0, NULL); |
| 3562 | |
| 3563 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3564 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3565 | |
| 3566 | break; |
| 3567 | case QCE_HASH_SHA256: |
| 3568 | cmdlistptr->auth_sha256.cmdlist = (uintptr_t)ce_vaddr; |
| 3569 | pcl_info = &(cmdlistptr->auth_sha256); |
| 3570 | |
| 3571 | auth_cfg = pdev->reg.auth_cfg_sha256; |
| 3572 | iv_reg = 8; |
| 3573 | |
| 3574 | /* clear status register */ |
| 3575 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, |
| 3576 | 0, NULL); |
| 3577 | |
| 3578 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3579 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3580 | /* 1 dummy write */ |
| 3581 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, |
| 3582 | 0, NULL); |
| 3583 | break; |
| 3584 | case QCE_HASH_SHA1_HMAC: |
| 3585 | cmdlistptr->auth_sha1_hmac.cmdlist = (uintptr_t)ce_vaddr; |
| 3586 | pcl_info = &(cmdlistptr->auth_sha1_hmac); |
| 3587 | |
| 3588 | auth_cfg = pdev->reg.auth_cfg_hmac_sha1; |
| 3589 | key_reg = 16; |
| 3590 | iv_reg = 5; |
| 3591 | |
| 3592 | /* clear status register */ |
| 3593 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, |
| 3594 | 0, NULL); |
| 3595 | |
| 3596 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3597 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3598 | break; |
| 3599 | case QCE_HASH_SHA256_HMAC: |
| 3600 | cmdlistptr->auth_sha256_hmac.cmdlist = (uintptr_t)ce_vaddr; |
| 3601 | pcl_info = &(cmdlistptr->auth_sha256_hmac); |
| 3602 | |
| 3603 | auth_cfg = pdev->reg.auth_cfg_hmac_sha256; |
| 3604 | key_reg = 16; |
| 3605 | iv_reg = 8; |
| 3606 | |
| 3607 | /* clear status register */ |
| 3608 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, |
| 3609 | NULL); |
| 3610 | |
| 3611 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3612 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3613 | /* 1 dummy write */ |
| 3614 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, |
| 3615 | 0, NULL); |
| 3616 | break; |
| 3617 | case QCE_HASH_AES_CMAC: |
| 3618 | if (key_128 == true) { |
| 3619 | cmdlistptr->auth_aes_128_cmac.cmdlist = |
| 3620 | (uintptr_t)ce_vaddr; |
| 3621 | pcl_info = &(cmdlistptr->auth_aes_128_cmac); |
| 3622 | |
| 3623 | auth_cfg = pdev->reg.auth_cfg_cmac_128; |
| 3624 | key_reg = 4; |
| 3625 | } else { |
| 3626 | cmdlistptr->auth_aes_256_cmac.cmdlist = |
| 3627 | (uintptr_t)ce_vaddr; |
| 3628 | pcl_info = &(cmdlistptr->auth_aes_256_cmac); |
| 3629 | |
| 3630 | auth_cfg = pdev->reg.auth_cfg_cmac_256; |
| 3631 | key_reg = 8; |
| 3632 | } |
| 3633 | |
| 3634 | /* clear status register */ |
| 3635 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, |
| 3636 | NULL); |
| 3637 | |
| 3638 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3639 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3640 | /* 1 dummy write */ |
| 3641 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, |
| 3642 | 0, NULL); |
| 3643 | break; |
| 3644 | default: |
| 3645 | pr_err("Unknown algorithms %d received, exiting now\n", alg); |
| 3646 | return -EINVAL; |
| 3647 | break; |
| 3648 | } |
| 3649 | |
| 3650 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 3651 | &pcl_info->seg_size); |
| 3652 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, 0, |
| 3653 | &pcl_info->encr_seg_cfg); |
| 3654 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, |
| 3655 | auth_cfg, &pcl_info->auth_seg_cfg); |
| 3656 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, 0, |
| 3657 | &pcl_info->auth_seg_size); |
| 3658 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, 0, |
| 3659 | &pcl_info->auth_seg_start); |
| 3660 | |
| 3661 | if (alg == QCE_HASH_AES_CMAC) { |
| 3662 | /* reset auth iv, bytecount and key registers */ |
| 3663 | for (i = 0; i < 16; i++) |
| 3664 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3665 | (CRYPTO_AUTH_IV0_REG + i * sizeof(uint32_t)), |
| 3666 | 0, NULL); |
| 3667 | for (i = 0; i < 16; i++) |
| 3668 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3669 | (CRYPTO_AUTH_KEY0_REG + i*sizeof(uint32_t)), |
| 3670 | 0, NULL); |
| 3671 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT0_REG, |
| 3672 | 0, NULL); |
| 3673 | } else { |
| 3674 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_IV0_REG, 0, |
| 3675 | &pcl_info->auth_iv); |
| 3676 | for (i = 1; i < iv_reg; i++) |
| 3677 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3678 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)), |
| 3679 | 0, NULL); |
| 3680 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT0_REG, |
| 3681 | 0, &pcl_info->auth_bytecount); |
| 3682 | } |
| 3683 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT1_REG, 0, NULL); |
| 3684 | |
| 3685 | if (key_reg) { |
| 3686 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3687 | CRYPTO_AUTH_KEY0_REG, 0, &pcl_info->auth_key); |
| 3688 | for (i = 1; i < key_reg; i++) |
| 3689 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3690 | (CRYPTO_AUTH_KEY0_REG + i*sizeof(uint32_t)), |
| 3691 | 0, NULL); |
| 3692 | } |
| 3693 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3694 | pdev->reg.crypto_cfg_le, NULL); |
| 3695 | |
| 3696 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 3697 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 3698 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 3699 | |
| 3700 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 3701 | *pvaddr = (unsigned char *) ce_vaddr; |
| 3702 | |
| 3703 | return 0; |
| 3704 | } |
| 3705 | |
| 3706 | static int _setup_aead_cmdlistptrs(struct qce_device *pdev, |
| 3707 | int cri_index, |
| 3708 | unsigned char **pvaddr, |
| 3709 | uint32_t alg, |
| 3710 | uint32_t mode, |
| 3711 | uint32_t key_size, |
| 3712 | bool sha1) |
| 3713 | { |
| 3714 | struct sps_command_element *ce_vaddr; |
| 3715 | uintptr_t ce_vaddr_start; |
| 3716 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 3717 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3718 | uint32_t key_reg; |
| 3719 | uint32_t iv_reg; |
| 3720 | uint32_t i; |
| 3721 | uint32_t enciv_in_word; |
| 3722 | uint32_t encr_cfg; |
| 3723 | |
| 3724 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 3725 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3726 | pdev->ce_bam_info.ce_burst_size); |
| 3727 | |
| 3728 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3729 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3730 | |
| 3731 | switch (alg) { |
| 3732 | |
| 3733 | case CIPHER_ALG_DES: |
| 3734 | |
| 3735 | switch (mode) { |
| 3736 | |
| 3737 | case QCE_MODE_CBC: |
| 3738 | if (sha1) { |
| 3739 | cmdlistptr->aead_hmac_sha1_cbc_des.cmdlist = |
| 3740 | (uintptr_t)ce_vaddr; |
| 3741 | pcl_info = &(cmdlistptr-> |
| 3742 | aead_hmac_sha1_cbc_des); |
| 3743 | } else { |
| 3744 | cmdlistptr->aead_hmac_sha256_cbc_des.cmdlist = |
| 3745 | (uintptr_t)ce_vaddr; |
| 3746 | pcl_info = &(cmdlistptr-> |
| 3747 | aead_hmac_sha256_cbc_des); |
| 3748 | } |
| 3749 | encr_cfg = pdev->reg.encr_cfg_des_cbc; |
| 3750 | break; |
| 3751 | default: |
| 3752 | return -EINVAL; |
| 3753 | }; |
| 3754 | |
| 3755 | enciv_in_word = 2; |
| 3756 | |
| 3757 | break; |
| 3758 | |
| 3759 | case CIPHER_ALG_3DES: |
| 3760 | switch (mode) { |
| 3761 | |
| 3762 | case QCE_MODE_CBC: |
| 3763 | if (sha1) { |
| 3764 | cmdlistptr->aead_hmac_sha1_cbc_3des.cmdlist = |
| 3765 | (uintptr_t)ce_vaddr; |
| 3766 | pcl_info = &(cmdlistptr-> |
| 3767 | aead_hmac_sha1_cbc_3des); |
| 3768 | } else { |
| 3769 | cmdlistptr->aead_hmac_sha256_cbc_3des.cmdlist = |
| 3770 | (uintptr_t)ce_vaddr; |
| 3771 | pcl_info = &(cmdlistptr-> |
| 3772 | aead_hmac_sha256_cbc_3des); |
| 3773 | } |
| 3774 | encr_cfg = pdev->reg.encr_cfg_3des_cbc; |
| 3775 | break; |
| 3776 | default: |
| 3777 | return -EINVAL; |
| 3778 | }; |
| 3779 | |
| 3780 | enciv_in_word = 2; |
| 3781 | |
| 3782 | break; |
| 3783 | |
| 3784 | case CIPHER_ALG_AES: |
| 3785 | switch (mode) { |
| 3786 | |
| 3787 | case QCE_MODE_CBC: |
| 3788 | if (key_size == AES128_KEY_SIZE) { |
| 3789 | if (sha1) { |
| 3790 | cmdlistptr-> |
| 3791 | aead_hmac_sha1_cbc_aes_128. |
| 3792 | cmdlist = (uintptr_t)ce_vaddr; |
| 3793 | pcl_info = &(cmdlistptr-> |
| 3794 | aead_hmac_sha1_cbc_aes_128); |
| 3795 | } else { |
| 3796 | cmdlistptr-> |
| 3797 | aead_hmac_sha256_cbc_aes_128. |
| 3798 | cmdlist = (uintptr_t)ce_vaddr; |
| 3799 | pcl_info = &(cmdlistptr-> |
| 3800 | aead_hmac_sha256_cbc_aes_128); |
| 3801 | } |
| 3802 | encr_cfg = pdev->reg.encr_cfg_aes_cbc_128; |
| 3803 | } else if (key_size == AES256_KEY_SIZE) { |
| 3804 | if (sha1) { |
| 3805 | cmdlistptr-> |
| 3806 | aead_hmac_sha1_cbc_aes_256. |
| 3807 | cmdlist = (uintptr_t)ce_vaddr; |
| 3808 | pcl_info = &(cmdlistptr-> |
| 3809 | aead_hmac_sha1_cbc_aes_256); |
| 3810 | } else { |
| 3811 | cmdlistptr-> |
| 3812 | aead_hmac_sha256_cbc_aes_256. |
| 3813 | cmdlist = (uintptr_t)ce_vaddr; |
| 3814 | pcl_info = &(cmdlistptr-> |
| 3815 | aead_hmac_sha256_cbc_aes_256); |
| 3816 | } |
| 3817 | encr_cfg = pdev->reg.encr_cfg_aes_cbc_256; |
| 3818 | } else { |
| 3819 | return -EINVAL; |
| 3820 | } |
| 3821 | break; |
| 3822 | default: |
| 3823 | return -EINVAL; |
| 3824 | }; |
| 3825 | |
| 3826 | enciv_in_word = 4; |
| 3827 | |
| 3828 | break; |
| 3829 | |
| 3830 | default: |
| 3831 | return -EINVAL; |
| 3832 | }; |
| 3833 | |
| 3834 | |
| 3835 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, NULL); |
| 3836 | |
| 3837 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3838 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3839 | |
| 3840 | |
| 3841 | key_reg = key_size/sizeof(uint32_t); |
| 3842 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_KEY0_REG, 0, |
| 3843 | &pcl_info->encr_key); |
| 3844 | for (i = 1; i < key_reg; i++) |
| 3845 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3846 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)), |
| 3847 | 0, NULL); |
| 3848 | |
| 3849 | if (mode != QCE_MODE_ECB) { |
| 3850 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR0_IV0_REG, 0, |
| 3851 | &pcl_info->encr_cntr_iv); |
| 3852 | for (i = 1; i < enciv_in_word; i++) |
| 3853 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3854 | (CRYPTO_CNTR0_IV0_REG + i * sizeof(uint32_t)), |
| 3855 | 0, NULL); |
| 3856 | }; |
| 3857 | |
| 3858 | if (sha1) |
| 3859 | iv_reg = 5; |
| 3860 | else |
| 3861 | iv_reg = 8; |
| 3862 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_IV0_REG, 0, |
| 3863 | &pcl_info->auth_iv); |
| 3864 | for (i = 1; i < iv_reg; i++) |
| 3865 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3866 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)), |
| 3867 | 0, NULL); |
| 3868 | |
| 3869 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT0_REG, |
| 3870 | 0, &pcl_info->auth_bytecount); |
| 3871 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT1_REG, 0, NULL); |
| 3872 | |
| 3873 | key_reg = SHA_HMAC_KEY_SIZE/sizeof(uint32_t); |
| 3874 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_KEY0_REG, 0, |
| 3875 | &pcl_info->auth_key); |
| 3876 | for (i = 1; i < key_reg; i++) |
| 3877 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3878 | (CRYPTO_AUTH_KEY0_REG + i*sizeof(uint32_t)), 0, NULL); |
| 3879 | |
| 3880 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 3881 | &pcl_info->seg_size); |
| 3882 | |
| 3883 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, encr_cfg, |
| 3884 | &pcl_info->encr_seg_cfg); |
| 3885 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 3886 | &pcl_info->encr_seg_size); |
| 3887 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3888 | &pcl_info->encr_seg_start); |
| 3889 | |
| 3890 | if (sha1) |
| 3891 | qce_add_cmd_element( |
| 3892 | pdev, |
| 3893 | &ce_vaddr, |
| 3894 | CRYPTO_AUTH_SEG_CFG_REG, |
| 3895 | pdev->reg.auth_cfg_aead_sha1_hmac, |
| 3896 | &pcl_info->auth_seg_cfg); |
| 3897 | else |
| 3898 | qce_add_cmd_element( |
| 3899 | pdev, |
| 3900 | &ce_vaddr, |
| 3901 | CRYPTO_AUTH_SEG_CFG_REG, |
| 3902 | pdev->reg.auth_cfg_aead_sha256_hmac, |
| 3903 | &pcl_info->auth_seg_cfg); |
| 3904 | |
| 3905 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, 0, |
| 3906 | &pcl_info->auth_seg_size); |
| 3907 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, 0, |
| 3908 | &pcl_info->auth_seg_start); |
| 3909 | |
| 3910 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3911 | pdev->reg.crypto_cfg_le, NULL); |
| 3912 | |
| 3913 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 3914 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 3915 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 3916 | |
| 3917 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 3918 | *pvaddr = (unsigned char *) ce_vaddr; |
| 3919 | return 0; |
| 3920 | } |
| 3921 | |
| 3922 | static int _setup_aead_ccm_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 3923 | unsigned char **pvaddr, bool key_128) |
| 3924 | { |
| 3925 | struct sps_command_element *ce_vaddr; |
| 3926 | uintptr_t ce_vaddr_start; |
| 3927 | struct qce_cmdlistptr_ops *cmdlistptr = &pdev->ce_request_info |
| 3928 | [cri_index].ce_sps.cmdlistptr; |
| 3929 | struct qce_cmdlist_info *pcl_info = NULL; |
| 3930 | int i = 0; |
| 3931 | uint32_t encr_cfg = 0; |
| 3932 | uint32_t auth_cfg = 0; |
| 3933 | uint32_t key_reg = 0; |
| 3934 | |
| 3935 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 3936 | pdev->ce_bam_info.ce_burst_size); |
| 3937 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 3938 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 3939 | |
| 3940 | /* |
| 3941 | * Designate chunks of the allocated memory to various |
| 3942 | * command list pointers related to aead operations |
| 3943 | * defined in ce_cmdlistptrs_ops structure. |
| 3944 | */ |
| 3945 | if (key_128 == true) { |
| 3946 | cmdlistptr->aead_aes_128_ccm.cmdlist = |
| 3947 | (uintptr_t)ce_vaddr; |
| 3948 | pcl_info = &(cmdlistptr->aead_aes_128_ccm); |
| 3949 | |
| 3950 | auth_cfg = pdev->reg.auth_cfg_aes_ccm_128; |
| 3951 | encr_cfg = pdev->reg.encr_cfg_aes_ccm_128; |
| 3952 | key_reg = 4; |
| 3953 | } else { |
| 3954 | |
| 3955 | cmdlistptr->aead_aes_256_ccm.cmdlist = |
| 3956 | (uintptr_t)ce_vaddr; |
| 3957 | pcl_info = &(cmdlistptr->aead_aes_256_ccm); |
| 3958 | |
| 3959 | auth_cfg = pdev->reg.auth_cfg_aes_ccm_256; |
| 3960 | encr_cfg = pdev->reg.encr_cfg_aes_ccm_256; |
| 3961 | |
| 3962 | key_reg = 8; |
| 3963 | } |
| 3964 | |
| 3965 | /* clear status register */ |
| 3966 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, 0, NULL); |
| 3967 | |
| 3968 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 3969 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 3970 | |
| 3971 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, 0, NULL); |
| 3972 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3973 | NULL); |
| 3974 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 3975 | &pcl_info->seg_size); |
| 3976 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, |
| 3977 | encr_cfg, &pcl_info->encr_seg_cfg); |
| 3978 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 3979 | &pcl_info->encr_seg_size); |
| 3980 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 3981 | &pcl_info->encr_seg_start); |
| 3982 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG, |
| 3983 | (uint32_t)0xffffffff, &pcl_info->encr_mask); |
| 3984 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG0, |
| 3985 | (uint32_t)0xffffffff, NULL); |
| 3986 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG1, |
| 3987 | (uint32_t)0xffffffff, NULL); |
| 3988 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR_MASK_REG2, |
| 3989 | (uint32_t)0xffffffff, NULL); |
| 3990 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, |
| 3991 | auth_cfg, &pcl_info->auth_seg_cfg); |
| 3992 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, 0, |
| 3993 | &pcl_info->auth_seg_size); |
| 3994 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, 0, |
| 3995 | &pcl_info->auth_seg_start); |
| 3996 | /* reset auth iv, bytecount and key registers */ |
| 3997 | for (i = 0; i < 8; i++) |
| 3998 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 3999 | (CRYPTO_AUTH_IV0_REG + i * sizeof(uint32_t)), |
| 4000 | 0, NULL); |
| 4001 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT0_REG, |
| 4002 | 0, NULL); |
| 4003 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT1_REG, |
| 4004 | 0, NULL); |
| 4005 | for (i = 0; i < 16; i++) |
| 4006 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4007 | (CRYPTO_AUTH_KEY0_REG + i * sizeof(uint32_t)), |
| 4008 | 0, NULL); |
| 4009 | /* set auth key */ |
| 4010 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_KEY0_REG, 0, |
| 4011 | &pcl_info->auth_key); |
| 4012 | for (i = 1; i < key_reg; i++) |
| 4013 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4014 | (CRYPTO_AUTH_KEY0_REG + i * sizeof(uint32_t)), |
| 4015 | 0, NULL); |
| 4016 | /* set NONCE info */ |
| 4017 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_INFO_NONCE0_REG, 0, |
| 4018 | &pcl_info->auth_nonce_info); |
| 4019 | for (i = 1; i < 4; i++) |
| 4020 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4021 | (CRYPTO_AUTH_INFO_NONCE0_REG + |
| 4022 | i * sizeof(uint32_t)), 0, NULL); |
| 4023 | |
| 4024 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_KEY0_REG, 0, |
| 4025 | &pcl_info->encr_key); |
| 4026 | for (i = 1; i < key_reg; i++) |
| 4027 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4028 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)), |
| 4029 | 0, NULL); |
| 4030 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR0_IV0_REG, 0, |
| 4031 | &pcl_info->encr_cntr_iv); |
| 4032 | for (i = 1; i < 4; i++) |
| 4033 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4034 | (CRYPTO_CNTR0_IV0_REG + i * sizeof(uint32_t)), |
| 4035 | 0, NULL); |
| 4036 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_CCM_INT_CNTR0_REG, 0, |
| 4037 | &pcl_info->encr_ccm_cntr_iv); |
| 4038 | for (i = 1; i < 4; i++) |
| 4039 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4040 | (CRYPTO_ENCR_CCM_INT_CNTR0_REG + i * sizeof(uint32_t)), |
| 4041 | 0, NULL); |
| 4042 | |
| 4043 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4044 | pdev->reg.crypto_cfg_le, NULL); |
| 4045 | |
| 4046 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 4047 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 4048 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 4049 | |
| 4050 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 4051 | *pvaddr = (unsigned char *) ce_vaddr; |
| 4052 | |
| 4053 | return 0; |
| 4054 | } |
| 4055 | |
| 4056 | static int _setup_f8_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 4057 | unsigned char **pvaddr, enum qce_ota_algo_enum alg) |
| 4058 | { |
| 4059 | struct sps_command_element *ce_vaddr; |
| 4060 | uintptr_t ce_vaddr_start; |
| 4061 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 4062 | struct qce_cmdlist_info *pcl_info = NULL; |
| 4063 | int i = 0; |
| 4064 | uint32_t encr_cfg = 0; |
| 4065 | uint32_t key_reg = 4; |
| 4066 | |
| 4067 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 4068 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 4069 | pdev->ce_bam_info.ce_burst_size); |
| 4070 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 4071 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 4072 | |
| 4073 | /* |
| 4074 | * Designate chunks of the allocated memory to various |
| 4075 | * command list pointers related to f8 cipher algorithm defined |
| 4076 | * in ce_cmdlistptrs_ops structure. |
| 4077 | */ |
| 4078 | |
| 4079 | switch (alg) { |
| 4080 | case QCE_OTA_ALGO_KASUMI: |
| 4081 | cmdlistptr->f8_kasumi.cmdlist = (uintptr_t)ce_vaddr; |
| 4082 | pcl_info = &(cmdlistptr->f8_kasumi); |
| 4083 | encr_cfg = pdev->reg.encr_cfg_kasumi; |
| 4084 | break; |
| 4085 | |
| 4086 | case QCE_OTA_ALGO_SNOW3G: |
| 4087 | default: |
| 4088 | cmdlistptr->f8_snow3g.cmdlist = (uintptr_t)ce_vaddr; |
| 4089 | pcl_info = &(cmdlistptr->f8_snow3g); |
| 4090 | encr_cfg = pdev->reg.encr_cfg_snow3g; |
| 4091 | break; |
| 4092 | } |
| 4093 | /* clear status register */ |
| 4094 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, |
| 4095 | 0, NULL); |
| 4096 | /* set config to big endian */ |
| 4097 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4098 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 4099 | |
| 4100 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 4101 | &pcl_info->seg_size); |
| 4102 | |
| 4103 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, encr_cfg, |
| 4104 | &pcl_info->encr_seg_cfg); |
| 4105 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_SIZE_REG, 0, |
| 4106 | &pcl_info->encr_seg_size); |
| 4107 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_START_REG, 0, |
| 4108 | &pcl_info->encr_seg_start); |
| 4109 | |
| 4110 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, 0, |
| 4111 | &pcl_info->auth_seg_cfg); |
| 4112 | |
| 4113 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, |
| 4114 | 0, &pcl_info->auth_seg_size); |
| 4115 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, |
| 4116 | 0, &pcl_info->auth_seg_start); |
| 4117 | |
| 4118 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_KEY0_REG, 0, |
| 4119 | &pcl_info->encr_key); |
| 4120 | for (i = 1; i < key_reg; i++) |
| 4121 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4122 | (CRYPTO_ENCR_KEY0_REG + i * sizeof(uint32_t)), |
| 4123 | 0, NULL); |
| 4124 | |
| 4125 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR0_IV0_REG, 0, |
| 4126 | &pcl_info->encr_cntr_iv); |
| 4127 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CNTR1_IV1_REG, 0, |
| 4128 | NULL); |
| 4129 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4130 | pdev->reg.crypto_cfg_le, NULL); |
| 4131 | |
| 4132 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 4133 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 4134 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 4135 | |
| 4136 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 4137 | *pvaddr = (unsigned char *) ce_vaddr; |
| 4138 | |
| 4139 | return 0; |
| 4140 | } |
| 4141 | |
| 4142 | static int _setup_f9_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 4143 | unsigned char **pvaddr, enum qce_ota_algo_enum alg) |
| 4144 | { |
| 4145 | struct sps_command_element *ce_vaddr; |
| 4146 | uintptr_t ce_vaddr_start; |
| 4147 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 4148 | struct qce_cmdlist_info *pcl_info = NULL; |
| 4149 | int i = 0; |
| 4150 | uint32_t auth_cfg = 0; |
| 4151 | uint32_t iv_reg = 0; |
| 4152 | |
| 4153 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 4154 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 4155 | pdev->ce_bam_info.ce_burst_size); |
| 4156 | ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 4157 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 4158 | |
| 4159 | /* |
| 4160 | * Designate chunks of the allocated memory to various |
| 4161 | * command list pointers related to authentication operations |
| 4162 | * defined in ce_cmdlistptrs_ops structure. |
| 4163 | */ |
| 4164 | switch (alg) { |
| 4165 | case QCE_OTA_ALGO_KASUMI: |
| 4166 | cmdlistptr->f9_kasumi.cmdlist = (uintptr_t)ce_vaddr; |
| 4167 | pcl_info = &(cmdlistptr->f9_kasumi); |
| 4168 | auth_cfg = pdev->reg.auth_cfg_kasumi; |
| 4169 | break; |
| 4170 | |
| 4171 | case QCE_OTA_ALGO_SNOW3G: |
| 4172 | default: |
| 4173 | cmdlistptr->f9_snow3g.cmdlist = (uintptr_t)ce_vaddr; |
| 4174 | pcl_info = &(cmdlistptr->f9_snow3g); |
| 4175 | auth_cfg = pdev->reg.auth_cfg_snow3g; |
| 4176 | }; |
| 4177 | |
| 4178 | /* clear status register */ |
| 4179 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_STATUS_REG, |
| 4180 | 0, NULL); |
| 4181 | /* set config to big endian */ |
| 4182 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4183 | pdev->reg.crypto_cfg_be, &pcl_info->crypto_cfg); |
| 4184 | |
| 4185 | iv_reg = 5; |
| 4186 | |
| 4187 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_SEG_SIZE_REG, 0, |
| 4188 | &pcl_info->seg_size); |
| 4189 | |
| 4190 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_ENCR_SEG_CFG_REG, 0, |
| 4191 | &pcl_info->encr_seg_cfg); |
| 4192 | |
| 4193 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_CFG_REG, |
| 4194 | auth_cfg, &pcl_info->auth_seg_cfg); |
| 4195 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_SIZE_REG, 0, |
| 4196 | &pcl_info->auth_seg_size); |
| 4197 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_SEG_START_REG, 0, |
| 4198 | &pcl_info->auth_seg_start); |
| 4199 | |
| 4200 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_IV0_REG, 0, |
| 4201 | &pcl_info->auth_iv); |
| 4202 | for (i = 1; i < iv_reg; i++) { |
| 4203 | qce_add_cmd_element(pdev, &ce_vaddr, |
| 4204 | (CRYPTO_AUTH_IV0_REG + i*sizeof(uint32_t)), |
| 4205 | 0, NULL); |
| 4206 | } |
| 4207 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT0_REG, |
| 4208 | 0, &pcl_info->auth_bytecount); |
| 4209 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_AUTH_BYTECNT1_REG, 0, NULL); |
| 4210 | |
| 4211 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4212 | pdev->reg.crypto_cfg_le, NULL); |
| 4213 | |
| 4214 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG, |
| 4215 | ((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) | |
| 4216 | (1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc); |
| 4217 | |
| 4218 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 4219 | *pvaddr = (unsigned char *) ce_vaddr; |
| 4220 | |
| 4221 | return 0; |
| 4222 | } |
| 4223 | |
| 4224 | static int _setup_unlock_pipe_cmdlistptrs(struct qce_device *pdev, |
| 4225 | int cri_index, unsigned char **pvaddr) |
| 4226 | { |
| 4227 | struct sps_command_element *ce_vaddr; |
| 4228 | uintptr_t ce_vaddr_start = (uintptr_t)(*pvaddr); |
| 4229 | struct qce_cmdlistptr_ops *cmdlistptr; |
| 4230 | struct qce_cmdlist_info *pcl_info = NULL; |
| 4231 | |
| 4232 | cmdlistptr = &pdev->ce_request_info[cri_index].ce_sps.cmdlistptr; |
| 4233 | *pvaddr = (unsigned char *)ALIGN(((uintptr_t)(*pvaddr)), |
| 4234 | pdev->ce_bam_info.ce_burst_size); |
| 4235 | ce_vaddr = (struct sps_command_element *)(*pvaddr); |
| 4236 | cmdlistptr->unlock_all_pipes.cmdlist = (uintptr_t)ce_vaddr; |
| 4237 | pcl_info = &(cmdlistptr->unlock_all_pipes); |
| 4238 | |
| 4239 | /* |
| 4240 | * Designate chunks of the allocated memory to command list |
| 4241 | * to unlock pipes. |
| 4242 | */ |
| 4243 | qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_CONFIG_REG, |
| 4244 | CRYPTO_CONFIG_RESET, NULL); |
| 4245 | pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start; |
| 4246 | *pvaddr = (unsigned char *) ce_vaddr; |
| 4247 | |
| 4248 | return 0; |
| 4249 | } |
| 4250 | |
| 4251 | static int qce_setup_cmdlistptrs(struct qce_device *pdev, int cri_index, |
| 4252 | unsigned char **pvaddr) |
| 4253 | { |
| 4254 | struct sps_command_element *ce_vaddr = |
| 4255 | (struct sps_command_element *)(*pvaddr); |
| 4256 | /* |
| 4257 | * Designate chunks of the allocated memory to various |
| 4258 | * command list pointers related to operations defined |
| 4259 | * in ce_cmdlistptrs_ops structure. |
| 4260 | */ |
| 4261 | ce_vaddr = |
| 4262 | (struct sps_command_element *)ALIGN(((uintptr_t) ce_vaddr), |
| 4263 | pdev->ce_bam_info.ce_burst_size); |
| 4264 | *pvaddr = (unsigned char *) ce_vaddr; |
| 4265 | |
| 4266 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_CBC, |
| 4267 | true); |
| 4268 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_CTR, |
| 4269 | true); |
| 4270 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_ECB, |
| 4271 | true); |
| 4272 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_XTS, |
| 4273 | true); |
| 4274 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_CBC, |
| 4275 | false); |
| 4276 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_CTR, |
| 4277 | false); |
| 4278 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_ECB, |
| 4279 | false); |
| 4280 | _setup_cipher_aes_cmdlistptrs(pdev, cri_index, pvaddr, QCE_MODE_XTS, |
| 4281 | false); |
| 4282 | |
| 4283 | _setup_cipher_des_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_DES, |
| 4284 | true); |
| 4285 | _setup_cipher_des_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_DES, |
| 4286 | false); |
| 4287 | _setup_cipher_des_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_3DES, |
| 4288 | true); |
| 4289 | _setup_cipher_des_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_3DES, |
| 4290 | false); |
| 4291 | |
| 4292 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_SHA1, |
| 4293 | false); |
| 4294 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_SHA256, |
| 4295 | false); |
| 4296 | |
| 4297 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_SHA1_HMAC, |
| 4298 | false); |
| 4299 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_SHA256_HMAC, |
| 4300 | false); |
| 4301 | |
| 4302 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_AES_CMAC, |
| 4303 | true); |
| 4304 | _setup_auth_cmdlistptrs(pdev, cri_index, pvaddr, QCE_HASH_AES_CMAC, |
| 4305 | false); |
| 4306 | |
| 4307 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_DES, |
| 4308 | QCE_MODE_CBC, DES_KEY_SIZE, true); |
| 4309 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_3DES, |
| 4310 | QCE_MODE_CBC, DES3_EDE_KEY_SIZE, true); |
| 4311 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_AES, |
| 4312 | QCE_MODE_CBC, AES128_KEY_SIZE, true); |
| 4313 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_AES, |
| 4314 | QCE_MODE_CBC, AES256_KEY_SIZE, true); |
| 4315 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_DES, |
| 4316 | QCE_MODE_CBC, DES_KEY_SIZE, false); |
| 4317 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_3DES, |
| 4318 | QCE_MODE_CBC, DES3_EDE_KEY_SIZE, false); |
| 4319 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_AES, |
| 4320 | QCE_MODE_CBC, AES128_KEY_SIZE, false); |
| 4321 | _setup_aead_cmdlistptrs(pdev, cri_index, pvaddr, CIPHER_ALG_AES, |
| 4322 | QCE_MODE_CBC, AES256_KEY_SIZE, false); |
| 4323 | |
| 4324 | _setup_cipher_null_cmdlistptrs(pdev, cri_index, pvaddr); |
| 4325 | |
| 4326 | _setup_aead_ccm_cmdlistptrs(pdev, cri_index, pvaddr, true); |
| 4327 | _setup_aead_ccm_cmdlistptrs(pdev, cri_index, pvaddr, false); |
| 4328 | _setup_f8_cmdlistptrs(pdev, cri_index, pvaddr, QCE_OTA_ALGO_KASUMI); |
| 4329 | _setup_f8_cmdlistptrs(pdev, cri_index, pvaddr, QCE_OTA_ALGO_SNOW3G); |
| 4330 | _setup_f9_cmdlistptrs(pdev, cri_index, pvaddr, QCE_OTA_ALGO_KASUMI); |
| 4331 | _setup_f9_cmdlistptrs(pdev, cri_index, pvaddr, QCE_OTA_ALGO_SNOW3G); |
| 4332 | _setup_unlock_pipe_cmdlistptrs(pdev, cri_index, pvaddr); |
| 4333 | |
| 4334 | return 0; |
| 4335 | } |
| 4336 | |
| 4337 | static int qce_setup_ce_sps_data(struct qce_device *pce_dev) |
| 4338 | { |
| 4339 | unsigned char *vaddr; |
| 4340 | int i; |
| 4341 | unsigned char *iovec_vaddr; |
| 4342 | int iovec_memsize; |
| 4343 | |
| 4344 | vaddr = pce_dev->coh_vmem; |
| 4345 | vaddr = (unsigned char *)ALIGN(((uintptr_t)vaddr), |
| 4346 | pce_dev->ce_bam_info.ce_burst_size); |
| 4347 | iovec_vaddr = pce_dev->iovec_vmem; |
| 4348 | iovec_memsize = pce_dev->iovec_memsize; |
| 4349 | for (i = 0; i < MAX_QCE_ALLOC_BAM_REQ; i++) { |
| 4350 | /* Allow for 256 descriptor (cmd and data) entries per pipe */ |
| 4351 | pce_dev->ce_request_info[i].ce_sps.in_transfer.iovec = |
| 4352 | (struct sps_iovec *)iovec_vaddr; |
| 4353 | pce_dev->ce_request_info[i].ce_sps.in_transfer.iovec_phys = |
| 4354 | virt_to_phys(pce_dev->ce_request_info[i]. |
| 4355 | ce_sps.in_transfer.iovec); |
| 4356 | iovec_vaddr += TOTAL_IOVEC_SPACE_PER_PIPE; |
| 4357 | iovec_memsize -= TOTAL_IOVEC_SPACE_PER_PIPE; |
| 4358 | pce_dev->ce_request_info[i].ce_sps.out_transfer.iovec = |
| 4359 | (struct sps_iovec *)iovec_vaddr; |
| 4360 | pce_dev->ce_request_info[i].ce_sps.out_transfer.iovec_phys = |
| 4361 | virt_to_phys(pce_dev->ce_request_info[i]. |
| 4362 | ce_sps.out_transfer.iovec); |
| 4363 | iovec_vaddr += TOTAL_IOVEC_SPACE_PER_PIPE; |
| 4364 | iovec_memsize -= TOTAL_IOVEC_SPACE_PER_PIPE; |
| 4365 | if (pce_dev->support_cmd_dscr) |
| 4366 | qce_setup_cmdlistptrs(pce_dev, i, &vaddr); |
| 4367 | vaddr = (unsigned char *)ALIGN(((uintptr_t)vaddr), |
| 4368 | pce_dev->ce_bam_info.ce_burst_size); |
| 4369 | pce_dev->ce_request_info[i].ce_sps.result_dump = |
| 4370 | (uintptr_t)vaddr; |
| 4371 | pce_dev->ce_request_info[i].ce_sps.result_dump_phy = |
| 4372 | GET_PHYS_ADDR((uintptr_t)vaddr); |
| 4373 | pce_dev->ce_request_info[i].ce_sps.result = |
| 4374 | (struct ce_result_dump_format *)vaddr; |
| 4375 | vaddr += CRYPTO_RESULT_DUMP_SIZE; |
| 4376 | |
| 4377 | pce_dev->ce_request_info[i].ce_sps.result_dump_null = |
| 4378 | (uintptr_t)vaddr; |
| 4379 | pce_dev->ce_request_info[i].ce_sps.result_dump_null_phy = |
| 4380 | GET_PHYS_ADDR((uintptr_t)vaddr); |
| 4381 | pce_dev->ce_request_info[i].ce_sps.result_null = |
| 4382 | (struct ce_result_dump_format *)vaddr; |
| 4383 | vaddr += CRYPTO_RESULT_DUMP_SIZE; |
| 4384 | |
| 4385 | pce_dev->ce_request_info[i].ce_sps.ignore_buffer = |
| 4386 | (uintptr_t)vaddr; |
| 4387 | vaddr += pce_dev->ce_bam_info.ce_burst_size * 2; |
| 4388 | } |
| 4389 | if ((vaddr - pce_dev->coh_vmem) > pce_dev->memsize || |
| 4390 | iovec_memsize < 0) |
| 4391 | panic("qce50: Not enough coherent memory. Allocate %x , need %lx\n", |
| 4392 | pce_dev->memsize, (uintptr_t)vaddr - |
| 4393 | (uintptr_t)pce_dev->coh_vmem); |
| 4394 | return 0; |
| 4395 | } |
| 4396 | |
| 4397 | static int qce_init_ce_cfg_val(struct qce_device *pce_dev) |
| 4398 | { |
| 4399 | uint32_t beats = (pce_dev->ce_bam_info.ce_burst_size >> 3) - 1; |
| 4400 | uint32_t pipe_pair = pce_dev->ce_bam_info.pipe_pair_index; |
| 4401 | |
| 4402 | pce_dev->reg.crypto_cfg_be = (beats << CRYPTO_REQ_SIZE) | |
| 4403 | BIT(CRYPTO_MASK_DOUT_INTR) | BIT(CRYPTO_MASK_DIN_INTR) | |
| 4404 | BIT(CRYPTO_MASK_OP_DONE_INTR) | (0 << CRYPTO_HIGH_SPD_EN_N) | |
| 4405 | (pipe_pair << CRYPTO_PIPE_SET_SELECT); |
| 4406 | |
| 4407 | pce_dev->reg.crypto_cfg_le = |
| 4408 | (pce_dev->reg.crypto_cfg_be | CRYPTO_LITTLE_ENDIAN_MASK); |
| 4409 | |
| 4410 | /* Initialize encr_cfg register for AES alg */ |
| 4411 | pce_dev->reg.encr_cfg_aes_cbc_128 = |
| 4412 | (CRYPTO_ENCR_KEY_SZ_AES128 << CRYPTO_ENCR_KEY_SZ) | |
| 4413 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4414 | (CRYPTO_ENCR_MODE_CBC << CRYPTO_ENCR_MODE); |
| 4415 | |
| 4416 | pce_dev->reg.encr_cfg_aes_cbc_256 = |
| 4417 | (CRYPTO_ENCR_KEY_SZ_AES256 << CRYPTO_ENCR_KEY_SZ) | |
| 4418 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4419 | (CRYPTO_ENCR_MODE_CBC << CRYPTO_ENCR_MODE); |
| 4420 | |
| 4421 | pce_dev->reg.encr_cfg_aes_ctr_128 = |
| 4422 | (CRYPTO_ENCR_KEY_SZ_AES128 << CRYPTO_ENCR_KEY_SZ) | |
| 4423 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4424 | (CRYPTO_ENCR_MODE_CTR << CRYPTO_ENCR_MODE); |
| 4425 | |
| 4426 | pce_dev->reg.encr_cfg_aes_ctr_256 = |
| 4427 | (CRYPTO_ENCR_KEY_SZ_AES256 << CRYPTO_ENCR_KEY_SZ) | |
| 4428 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4429 | (CRYPTO_ENCR_MODE_CTR << CRYPTO_ENCR_MODE); |
| 4430 | |
| 4431 | pce_dev->reg.encr_cfg_aes_xts_128 = |
| 4432 | (CRYPTO_ENCR_KEY_SZ_AES128 << CRYPTO_ENCR_KEY_SZ) | |
| 4433 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4434 | (CRYPTO_ENCR_MODE_XTS << CRYPTO_ENCR_MODE); |
| 4435 | |
| 4436 | pce_dev->reg.encr_cfg_aes_xts_256 = |
| 4437 | (CRYPTO_ENCR_KEY_SZ_AES256 << CRYPTO_ENCR_KEY_SZ) | |
| 4438 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4439 | (CRYPTO_ENCR_MODE_XTS << CRYPTO_ENCR_MODE); |
| 4440 | |
| 4441 | pce_dev->reg.encr_cfg_aes_ecb_128 = |
| 4442 | (CRYPTO_ENCR_KEY_SZ_AES128 << CRYPTO_ENCR_KEY_SZ) | |
| 4443 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4444 | (CRYPTO_ENCR_MODE_ECB << CRYPTO_ENCR_MODE); |
| 4445 | |
| 4446 | pce_dev->reg.encr_cfg_aes_ecb_256 = |
| 4447 | (CRYPTO_ENCR_KEY_SZ_AES256 << CRYPTO_ENCR_KEY_SZ) | |
| 4448 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4449 | (CRYPTO_ENCR_MODE_ECB << CRYPTO_ENCR_MODE); |
| 4450 | |
| 4451 | pce_dev->reg.encr_cfg_aes_ccm_128 = |
| 4452 | (CRYPTO_ENCR_KEY_SZ_AES128 << CRYPTO_ENCR_KEY_SZ) | |
| 4453 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4454 | (CRYPTO_ENCR_MODE_CCM << CRYPTO_ENCR_MODE)| |
| 4455 | (CRYPTO_LAST_CCM_XFR << CRYPTO_LAST_CCM); |
| 4456 | |
| 4457 | pce_dev->reg.encr_cfg_aes_ccm_256 = |
| 4458 | (CRYPTO_ENCR_KEY_SZ_AES256 << CRYPTO_ENCR_KEY_SZ) | |
| 4459 | (CRYPTO_ENCR_ALG_AES << CRYPTO_ENCR_ALG) | |
| 4460 | (CRYPTO_ENCR_MODE_CCM << CRYPTO_ENCR_MODE) | |
| 4461 | (CRYPTO_LAST_CCM_XFR << CRYPTO_LAST_CCM); |
| 4462 | |
| 4463 | /* Initialize encr_cfg register for DES alg */ |
| 4464 | pce_dev->reg.encr_cfg_des_ecb = |
| 4465 | (CRYPTO_ENCR_KEY_SZ_DES << CRYPTO_ENCR_KEY_SZ) | |
| 4466 | (CRYPTO_ENCR_ALG_DES << CRYPTO_ENCR_ALG) | |
| 4467 | (CRYPTO_ENCR_MODE_ECB << CRYPTO_ENCR_MODE); |
| 4468 | |
| 4469 | pce_dev->reg.encr_cfg_des_cbc = |
| 4470 | (CRYPTO_ENCR_KEY_SZ_DES << CRYPTO_ENCR_KEY_SZ) | |
| 4471 | (CRYPTO_ENCR_ALG_DES << CRYPTO_ENCR_ALG) | |
| 4472 | (CRYPTO_ENCR_MODE_CBC << CRYPTO_ENCR_MODE); |
| 4473 | |
| 4474 | pce_dev->reg.encr_cfg_3des_ecb = |
| 4475 | (CRYPTO_ENCR_KEY_SZ_3DES << CRYPTO_ENCR_KEY_SZ) | |
| 4476 | (CRYPTO_ENCR_ALG_DES << CRYPTO_ENCR_ALG) | |
| 4477 | (CRYPTO_ENCR_MODE_ECB << CRYPTO_ENCR_MODE); |
| 4478 | |
| 4479 | pce_dev->reg.encr_cfg_3des_cbc = |
| 4480 | (CRYPTO_ENCR_KEY_SZ_3DES << CRYPTO_ENCR_KEY_SZ) | |
| 4481 | (CRYPTO_ENCR_ALG_DES << CRYPTO_ENCR_ALG) | |
| 4482 | (CRYPTO_ENCR_MODE_CBC << CRYPTO_ENCR_MODE); |
| 4483 | |
| 4484 | /* Initialize encr_cfg register for kasumi/snow3g alg */ |
| 4485 | pce_dev->reg.encr_cfg_kasumi = |
| 4486 | (CRYPTO_ENCR_ALG_KASUMI << CRYPTO_ENCR_ALG); |
| 4487 | |
| 4488 | pce_dev->reg.encr_cfg_snow3g = |
| 4489 | (CRYPTO_ENCR_ALG_SNOW_3G << CRYPTO_ENCR_ALG); |
| 4490 | |
| 4491 | /* Initialize auth_cfg register for CMAC alg */ |
| 4492 | pce_dev->reg.auth_cfg_cmac_128 = |
| 4493 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST) | |
| 4494 | (CRYPTO_AUTH_MODE_CMAC << CRYPTO_AUTH_MODE)| |
| 4495 | (CRYPTO_AUTH_SIZE_ENUM_16_BYTES << CRYPTO_AUTH_SIZE) | |
| 4496 | (CRYPTO_AUTH_ALG_AES << CRYPTO_AUTH_ALG) | |
| 4497 | (CRYPTO_AUTH_KEY_SZ_AES128 << CRYPTO_AUTH_KEY_SIZE); |
| 4498 | |
| 4499 | pce_dev->reg.auth_cfg_cmac_256 = |
| 4500 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST) | |
| 4501 | (CRYPTO_AUTH_MODE_CMAC << CRYPTO_AUTH_MODE)| |
| 4502 | (CRYPTO_AUTH_SIZE_ENUM_16_BYTES << CRYPTO_AUTH_SIZE) | |
| 4503 | (CRYPTO_AUTH_ALG_AES << CRYPTO_AUTH_ALG) | |
| 4504 | (CRYPTO_AUTH_KEY_SZ_AES256 << CRYPTO_AUTH_KEY_SIZE); |
| 4505 | |
| 4506 | /* Initialize auth_cfg register for HMAC alg */ |
| 4507 | pce_dev->reg.auth_cfg_hmac_sha1 = |
| 4508 | (CRYPTO_AUTH_MODE_HMAC << CRYPTO_AUTH_MODE)| |
| 4509 | (CRYPTO_AUTH_SIZE_SHA1 << CRYPTO_AUTH_SIZE) | |
| 4510 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4511 | (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 4512 | |
| 4513 | pce_dev->reg.auth_cfg_hmac_sha256 = |
| 4514 | (CRYPTO_AUTH_MODE_HMAC << CRYPTO_AUTH_MODE)| |
| 4515 | (CRYPTO_AUTH_SIZE_SHA256 << CRYPTO_AUTH_SIZE) | |
| 4516 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4517 | (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 4518 | |
| 4519 | /* Initialize auth_cfg register for SHA1/256 alg */ |
| 4520 | pce_dev->reg.auth_cfg_sha1 = |
| 4521 | (CRYPTO_AUTH_MODE_HASH << CRYPTO_AUTH_MODE)| |
| 4522 | (CRYPTO_AUTH_SIZE_SHA1 << CRYPTO_AUTH_SIZE) | |
| 4523 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4524 | (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 4525 | |
| 4526 | pce_dev->reg.auth_cfg_sha256 = |
| 4527 | (CRYPTO_AUTH_MODE_HASH << CRYPTO_AUTH_MODE)| |
| 4528 | (CRYPTO_AUTH_SIZE_SHA256 << CRYPTO_AUTH_SIZE) | |
| 4529 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4530 | (CRYPTO_AUTH_POS_BEFORE << CRYPTO_AUTH_POS); |
| 4531 | |
| 4532 | /* Initialize auth_cfg register for AEAD alg */ |
| 4533 | pce_dev->reg.auth_cfg_aead_sha1_hmac = |
| 4534 | (CRYPTO_AUTH_MODE_HMAC << CRYPTO_AUTH_MODE)| |
| 4535 | (CRYPTO_AUTH_SIZE_SHA1 << CRYPTO_AUTH_SIZE) | |
| 4536 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4537 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST); |
| 4538 | |
| 4539 | pce_dev->reg.auth_cfg_aead_sha256_hmac = |
| 4540 | (CRYPTO_AUTH_MODE_HMAC << CRYPTO_AUTH_MODE)| |
| 4541 | (CRYPTO_AUTH_SIZE_SHA256 << CRYPTO_AUTH_SIZE) | |
| 4542 | (CRYPTO_AUTH_ALG_SHA << CRYPTO_AUTH_ALG) | |
| 4543 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST); |
| 4544 | |
| 4545 | pce_dev->reg.auth_cfg_aes_ccm_128 = |
| 4546 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST) | |
| 4547 | (CRYPTO_AUTH_MODE_CCM << CRYPTO_AUTH_MODE)| |
| 4548 | (CRYPTO_AUTH_ALG_AES << CRYPTO_AUTH_ALG) | |
| 4549 | (CRYPTO_AUTH_KEY_SZ_AES128 << CRYPTO_AUTH_KEY_SIZE) | |
| 4550 | ((MAX_NONCE/sizeof(uint32_t)) << CRYPTO_AUTH_NONCE_NUM_WORDS); |
| 4551 | pce_dev->reg.auth_cfg_aes_ccm_128 &= ~(1 << CRYPTO_USE_HW_KEY_AUTH); |
| 4552 | |
| 4553 | pce_dev->reg.auth_cfg_aes_ccm_256 = |
| 4554 | (1 << CRYPTO_LAST) | (1 << CRYPTO_FIRST) | |
| 4555 | (CRYPTO_AUTH_MODE_CCM << CRYPTO_AUTH_MODE)| |
| 4556 | (CRYPTO_AUTH_ALG_AES << CRYPTO_AUTH_ALG) | |
| 4557 | (CRYPTO_AUTH_KEY_SZ_AES256 << CRYPTO_AUTH_KEY_SIZE) | |
| 4558 | ((MAX_NONCE/sizeof(uint32_t)) << CRYPTO_AUTH_NONCE_NUM_WORDS); |
| 4559 | pce_dev->reg.auth_cfg_aes_ccm_256 &= ~(1 << CRYPTO_USE_HW_KEY_AUTH); |
| 4560 | |
| 4561 | /* Initialize auth_cfg register for kasumi/snow3g */ |
| 4562 | pce_dev->reg.auth_cfg_kasumi = |
| 4563 | (CRYPTO_AUTH_ALG_KASUMI << CRYPTO_AUTH_ALG) | |
| 4564 | BIT(CRYPTO_FIRST) | BIT(CRYPTO_LAST); |
| 4565 | pce_dev->reg.auth_cfg_snow3g = |
| 4566 | (CRYPTO_AUTH_ALG_SNOW3G << CRYPTO_AUTH_ALG) | |
| 4567 | BIT(CRYPTO_FIRST) | BIT(CRYPTO_LAST); |
| 4568 | return 0; |
| 4569 | } |
| 4570 | |
| 4571 | static void _qce_ccm_get_around_input(struct qce_device *pce_dev, |
| 4572 | struct ce_request_info *preq_info, enum qce_cipher_dir_enum dir) |
| 4573 | { |
| 4574 | struct qce_cmdlist_info *cmdlistinfo; |
| 4575 | struct ce_sps_data *pce_sps_data; |
| 4576 | |
| 4577 | pce_sps_data = &preq_info->ce_sps; |
| 4578 | if ((dir == QCE_DECRYPT) && pce_dev->no_get_around && |
| 4579 | !(pce_dev->no_ccm_mac_status_get_around)) { |
| 4580 | cmdlistinfo = &pce_sps_data->cmdlistptr.cipher_null; |
| 4581 | _qce_sps_add_cmd(pce_dev, 0, cmdlistinfo, |
| 4582 | &pce_sps_data->in_transfer); |
| 4583 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->ignore_buffer), |
| 4584 | pce_dev->ce_bam_info.ce_burst_size, |
| 4585 | &pce_sps_data->in_transfer); |
| 4586 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 4587 | SPS_IOVEC_FLAG_EOT | SPS_IOVEC_FLAG_NWD); |
| 4588 | } |
| 4589 | } |
| 4590 | |
| 4591 | static void _qce_ccm_get_around_output(struct qce_device *pce_dev, |
| 4592 | struct ce_request_info *preq_info, enum qce_cipher_dir_enum dir) |
| 4593 | { |
| 4594 | struct ce_sps_data *pce_sps_data; |
| 4595 | |
| 4596 | pce_sps_data = &preq_info->ce_sps; |
| 4597 | |
| 4598 | if ((dir == QCE_DECRYPT) && pce_dev->no_get_around && |
| 4599 | !(pce_dev->no_ccm_mac_status_get_around)) { |
| 4600 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->ignore_buffer), |
| 4601 | pce_dev->ce_bam_info.ce_burst_size, |
| 4602 | &pce_sps_data->out_transfer); |
| 4603 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump_null), |
| 4604 | CRYPTO_RESULT_DUMP_SIZE, &pce_sps_data->out_transfer); |
| 4605 | } |
| 4606 | } |
| 4607 | |
| 4608 | /* QCE_DUMMY_REQ */ |
| 4609 | static void qce_dummy_complete(void *cookie, unsigned char *digest, |
| 4610 | unsigned char *authdata, int ret) |
| 4611 | { |
| 4612 | if (!cookie) |
| 4613 | pr_err("invalid cookie\n"); |
| 4614 | } |
| 4615 | |
| 4616 | static int qce_dummy_req(struct qce_device *pce_dev) |
| 4617 | { |
| 4618 | int ret = 0; |
| 4619 | |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 4620 | if (!(atomic_xchg(&pce_dev->ce_request_info[DUMMY_REQ_INDEX]. |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4621 | in_use, true) == false)) |
| 4622 | return -EBUSY; |
| 4623 | ret = qce_process_sha_req(pce_dev, NULL); |
| 4624 | pce_dev->qce_stats.no_of_dummy_reqs++; |
| 4625 | return ret; |
| 4626 | } |
| 4627 | |
| 4628 | static int select_mode(struct qce_device *pce_dev, |
| 4629 | struct ce_request_info *preq_info) |
| 4630 | { |
| 4631 | struct ce_sps_data *pce_sps_data = &preq_info->ce_sps; |
| 4632 | unsigned int no_of_queued_req; |
| 4633 | unsigned int cadence; |
| 4634 | |
| 4635 | if (!pce_dev->no_get_around) { |
| 4636 | _qce_set_flag(&pce_sps_data->out_transfer, SPS_IOVEC_FLAG_INT); |
| 4637 | return 0; |
| 4638 | } |
| 4639 | |
| 4640 | /* |
| 4641 | * claim ownership of device |
| 4642 | */ |
| 4643 | again: |
| 4644 | if (cmpxchg(&pce_dev->owner, QCE_OWNER_NONE, QCE_OWNER_CLIENT) |
| 4645 | != QCE_OWNER_NONE) { |
| 4646 | ndelay(40); |
| 4647 | goto again; |
| 4648 | } |
| 4649 | no_of_queued_req = atomic_inc_return(&pce_dev->no_of_queued_req); |
| 4650 | if (pce_dev->mode == IN_INTERRUPT_MODE) { |
| 4651 | if (no_of_queued_req >= MAX_BUNCH_MODE_REQ) { |
| 4652 | pce_dev->mode = IN_BUNCH_MODE; |
| 4653 | pr_debug("pcedev %d mode switch to BUNCH\n", |
| 4654 | pce_dev->dev_no); |
| 4655 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 4656 | SPS_IOVEC_FLAG_INT); |
| 4657 | pce_dev->intr_cadence = 0; |
| 4658 | atomic_set(&pce_dev->bunch_cmd_seq, 1); |
| 4659 | atomic_set(&pce_dev->last_intr_seq, 1); |
| 4660 | mod_timer(&(pce_dev->timer), |
| 4661 | (jiffies + DELAY_IN_JIFFIES)); |
| 4662 | } else { |
| 4663 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 4664 | SPS_IOVEC_FLAG_INT); |
| 4665 | } |
| 4666 | } else { |
| 4667 | pce_dev->intr_cadence++; |
| 4668 | cadence = (preq_info->req_len >> 7) + 1; |
| 4669 | if (cadence > SET_INTR_AT_REQ) |
| 4670 | cadence = SET_INTR_AT_REQ; |
| 4671 | if (pce_dev->intr_cadence < cadence || ((pce_dev->intr_cadence |
| 4672 | == cadence) && pce_dev->cadence_flag)) |
| 4673 | atomic_inc(&pce_dev->bunch_cmd_seq); |
| 4674 | else { |
| 4675 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 4676 | SPS_IOVEC_FLAG_INT); |
| 4677 | pce_dev->intr_cadence = 0; |
| 4678 | atomic_set(&pce_dev->bunch_cmd_seq, 0); |
| 4679 | atomic_set(&pce_dev->last_intr_seq, 0); |
| 4680 | pce_dev->cadence_flag = ~pce_dev->cadence_flag; |
| 4681 | } |
| 4682 | } |
| 4683 | |
| 4684 | return 0; |
| 4685 | } |
| 4686 | |
| 4687 | static int _qce_aead_ccm_req(void *handle, struct qce_req *q_req) |
| 4688 | { |
| 4689 | int rc = 0; |
| 4690 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 4691 | struct aead_request *areq = (struct aead_request *) q_req->areq; |
| 4692 | uint32_t authsize = q_req->authsize; |
| 4693 | uint32_t totallen_in, out_len; |
| 4694 | uint32_t hw_pad_out = 0; |
| 4695 | int ce_burst_size; |
| 4696 | struct qce_cmdlist_info *cmdlistinfo = NULL; |
| 4697 | int req_info = -1; |
| 4698 | struct ce_request_info *preq_info; |
| 4699 | struct ce_sps_data *pce_sps_data; |
| 4700 | |
| 4701 | req_info = qce_alloc_req_info(pce_dev); |
| 4702 | if (req_info < 0) |
| 4703 | return -EBUSY; |
| 4704 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 4705 | pce_sps_data = &preq_info->ce_sps; |
| 4706 | |
| 4707 | ce_burst_size = pce_dev->ce_bam_info.ce_burst_size; |
| 4708 | totallen_in = areq->cryptlen + q_req->assoclen; |
| 4709 | if (q_req->dir == QCE_ENCRYPT) { |
| 4710 | q_req->cryptlen = areq->cryptlen; |
| 4711 | out_len = areq->cryptlen + authsize; |
| 4712 | hw_pad_out = ALIGN(authsize, ce_burst_size) - authsize; |
| 4713 | } else { |
| 4714 | q_req->cryptlen = areq->cryptlen - authsize; |
| 4715 | out_len = q_req->cryptlen; |
| 4716 | hw_pad_out = authsize; |
| 4717 | } |
| 4718 | |
| 4719 | /* |
| 4720 | * For crypto 5.0 that has burst size alignment requirement |
| 4721 | * for data descritpor, |
| 4722 | * the agent above(qcrypto) prepares the src scatter list with |
| 4723 | * memory starting with associated data, followed by |
| 4724 | * data stream to be ciphered. |
| 4725 | * The destination scatter list is pointing to the same |
| 4726 | * data area as source. |
| 4727 | */ |
| 4728 | if (pce_dev->ce_bam_info.minor_version == 0) |
| 4729 | preq_info->src_nents = count_sg(areq->src, totallen_in); |
| 4730 | else |
| 4731 | preq_info->src_nents = count_sg(areq->src, areq->cryptlen + |
| 4732 | areq->assoclen); |
| 4733 | |
| 4734 | if (q_req->assoclen) { |
| 4735 | preq_info->assoc_nents = count_sg(q_req->asg, q_req->assoclen); |
| 4736 | |
| 4737 | /* formatted associated data input */ |
| 4738 | qce_dma_map_sg(pce_dev->pdev, q_req->asg, |
| 4739 | preq_info->assoc_nents, DMA_TO_DEVICE); |
| 4740 | preq_info->asg = q_req->asg; |
| 4741 | } else { |
| 4742 | preq_info->assoc_nents = 0; |
| 4743 | preq_info->asg = NULL; |
| 4744 | } |
| 4745 | /* cipher input */ |
| 4746 | qce_dma_map_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 4747 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 4748 | DMA_TO_DEVICE); |
| 4749 | /* cipher + mac output for encryption */ |
| 4750 | if (areq->src != areq->dst) { |
| 4751 | if (pce_dev->ce_bam_info.minor_version == 0) |
| 4752 | /* |
| 4753 | * The destination scatter list is pointing to the same |
| 4754 | * data area as src. |
| 4755 | * Note, the associated data will be pass-through |
| 4756 | * at the beginning of destination area. |
| 4757 | */ |
| 4758 | preq_info->dst_nents = count_sg(areq->dst, |
| 4759 | out_len + areq->assoclen); |
| 4760 | else |
| 4761 | preq_info->dst_nents = count_sg(areq->dst, out_len + |
| 4762 | areq->assoclen); |
| 4763 | |
| 4764 | qce_dma_map_sg(pce_dev->pdev, areq->dst, preq_info->dst_nents, |
| 4765 | DMA_FROM_DEVICE); |
| 4766 | } else { |
| 4767 | preq_info->dst_nents = preq_info->src_nents; |
| 4768 | } |
| 4769 | |
| 4770 | if (pce_dev->support_cmd_dscr) { |
| 4771 | cmdlistinfo = _ce_get_cipher_cmdlistinfo(pce_dev, req_info, |
| 4772 | q_req); |
| 4773 | if (cmdlistinfo == NULL) { |
| 4774 | pr_err("Unsupported cipher algorithm %d, mode %d\n", |
| 4775 | q_req->alg, q_req->mode); |
| 4776 | qce_free_req_info(pce_dev, req_info, false); |
| 4777 | return -EINVAL; |
| 4778 | } |
| 4779 | /* set up crypto device */ |
| 4780 | rc = _ce_setup_cipher(pce_dev, q_req, totallen_in, |
| 4781 | q_req->assoclen, cmdlistinfo); |
| 4782 | } else { |
| 4783 | /* set up crypto device */ |
| 4784 | rc = _ce_setup_cipher_direct(pce_dev, q_req, totallen_in, |
| 4785 | q_req->assoclen); |
| 4786 | } |
| 4787 | |
| 4788 | if (rc < 0) |
| 4789 | goto bad; |
| 4790 | |
| 4791 | preq_info->mode = q_req->mode; |
| 4792 | |
| 4793 | /* setup for callback, and issue command to bam */ |
| 4794 | preq_info->areq = q_req->areq; |
| 4795 | preq_info->qce_cb = q_req->qce_cb; |
| 4796 | preq_info->dir = q_req->dir; |
| 4797 | |
| 4798 | /* setup xfer type for producer callback handling */ |
| 4799 | preq_info->xfer_type = QCE_XFER_AEAD; |
| 4800 | preq_info->req_len = totallen_in; |
| 4801 | |
| 4802 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 4803 | |
| 4804 | if (pce_dev->support_cmd_dscr) |
| 4805 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 4806 | &pce_sps_data->in_transfer); |
| 4807 | |
| 4808 | if (pce_dev->ce_bam_info.minor_version == 0) { |
| 4809 | goto bad; |
| 4810 | } else { |
| 4811 | if (q_req->assoclen && (_qce_sps_add_sg_data( |
| 4812 | pce_dev, q_req->asg, q_req->assoclen, |
| 4813 | &pce_sps_data->in_transfer))) |
| 4814 | goto bad; |
| 4815 | if (_qce_sps_add_sg_data_off(pce_dev, areq->src, areq->cryptlen, |
| 4816 | areq->assoclen, |
| 4817 | &pce_sps_data->in_transfer)) |
| 4818 | goto bad; |
| 4819 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 4820 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 4821 | |
| 4822 | _qce_ccm_get_around_input(pce_dev, preq_info, q_req->dir); |
| 4823 | |
| 4824 | if (pce_dev->no_get_around) |
| 4825 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 4826 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 4827 | &pce_sps_data->in_transfer); |
| 4828 | |
| 4829 | /* Pass through to ignore associated data*/ |
| 4830 | if (_qce_sps_add_data( |
| 4831 | GET_PHYS_ADDR(pce_sps_data->ignore_buffer), |
| 4832 | q_req->assoclen, |
| 4833 | &pce_sps_data->out_transfer)) |
| 4834 | goto bad; |
| 4835 | if (_qce_sps_add_sg_data_off(pce_dev, areq->dst, out_len, |
| 4836 | areq->assoclen, |
| 4837 | &pce_sps_data->out_transfer)) |
| 4838 | goto bad; |
| 4839 | /* Pass through to ignore hw_pad (padding of the MAC data) */ |
| 4840 | if (_qce_sps_add_data( |
| 4841 | GET_PHYS_ADDR(pce_sps_data->ignore_buffer), |
| 4842 | hw_pad_out, &pce_sps_data->out_transfer)) |
| 4843 | goto bad; |
| 4844 | if (pce_dev->no_get_around || |
| 4845 | totallen_in <= SPS_MAX_PKT_SIZE) { |
| 4846 | if (_qce_sps_add_data( |
| 4847 | GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 4848 | CRYPTO_RESULT_DUMP_SIZE, |
| 4849 | &pce_sps_data->out_transfer)) |
| 4850 | goto bad; |
| 4851 | pce_sps_data->producer_state = QCE_PIPE_STATE_COMP; |
| 4852 | } else { |
| 4853 | pce_sps_data->producer_state = QCE_PIPE_STATE_IDLE; |
| 4854 | } |
| 4855 | |
| 4856 | _qce_ccm_get_around_output(pce_dev, preq_info, q_req->dir); |
| 4857 | |
| 4858 | select_mode(pce_dev, preq_info); |
| 4859 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 4860 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 4861 | } |
| 4862 | if (rc) |
| 4863 | goto bad; |
| 4864 | return 0; |
| 4865 | |
| 4866 | bad: |
| 4867 | if (preq_info->assoc_nents) { |
| 4868 | qce_dma_unmap_sg(pce_dev->pdev, q_req->asg, |
| 4869 | preq_info->assoc_nents, DMA_TO_DEVICE); |
| 4870 | } |
| 4871 | if (preq_info->src_nents) { |
| 4872 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 4873 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 4874 | DMA_TO_DEVICE); |
| 4875 | } |
| 4876 | if (areq->src != areq->dst) { |
| 4877 | qce_dma_unmap_sg(pce_dev->pdev, areq->dst, preq_info->dst_nents, |
| 4878 | DMA_FROM_DEVICE); |
| 4879 | } |
| 4880 | qce_free_req_info(pce_dev, req_info, false); |
| 4881 | return rc; |
| 4882 | } |
| 4883 | |
| 4884 | static int _qce_suspend(void *handle) |
| 4885 | { |
| 4886 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 4887 | struct sps_pipe *sps_pipe_info; |
| 4888 | |
| 4889 | if (handle == NULL) |
| 4890 | return -ENODEV; |
| 4891 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4892 | sps_pipe_info = pce_dev->ce_bam_info.consumer.pipe; |
| 4893 | sps_disconnect(sps_pipe_info); |
| 4894 | |
| 4895 | sps_pipe_info = pce_dev->ce_bam_info.producer.pipe; |
| 4896 | sps_disconnect(sps_pipe_info); |
| 4897 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4898 | return 0; |
| 4899 | } |
| 4900 | |
| 4901 | static int _qce_resume(void *handle) |
| 4902 | { |
| 4903 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 4904 | struct sps_pipe *sps_pipe_info; |
| 4905 | struct sps_connect *sps_connect_info; |
| 4906 | int rc; |
| 4907 | |
| 4908 | if (handle == NULL) |
| 4909 | return -ENODEV; |
| 4910 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4911 | sps_pipe_info = pce_dev->ce_bam_info.consumer.pipe; |
| 4912 | sps_connect_info = &pce_dev->ce_bam_info.consumer.connect; |
| 4913 | memset(sps_connect_info->desc.base, 0x00, sps_connect_info->desc.size); |
| 4914 | rc = sps_connect(sps_pipe_info, sps_connect_info); |
| 4915 | if (rc) { |
| 4916 | pr_err("sps_connect() fail pipe_handle=0x%lx, rc = %d\n", |
| 4917 | (uintptr_t)sps_pipe_info, rc); |
| 4918 | return rc; |
| 4919 | } |
| 4920 | sps_pipe_info = pce_dev->ce_bam_info.producer.pipe; |
| 4921 | sps_connect_info = &pce_dev->ce_bam_info.producer.connect; |
| 4922 | memset(sps_connect_info->desc.base, 0x00, sps_connect_info->desc.size); |
| 4923 | rc = sps_connect(sps_pipe_info, sps_connect_info); |
| 4924 | if (rc) |
| 4925 | pr_err("sps_connect() fail pipe_handle=0x%lx, rc = %d\n", |
| 4926 | (uintptr_t)sps_pipe_info, rc); |
| 4927 | |
| 4928 | rc = sps_register_event(sps_pipe_info, |
| 4929 | &pce_dev->ce_bam_info.producer.event); |
| 4930 | if (rc) |
| 4931 | pr_err("Producer callback registration failed rc = %d\n", rc); |
| 4932 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4933 | return rc; |
| 4934 | } |
| 4935 | |
| 4936 | struct qce_pm_table qce_pm_table = {_qce_suspend, _qce_resume}; |
| 4937 | EXPORT_SYMBOL(qce_pm_table); |
| 4938 | |
| 4939 | int qce_aead_req(void *handle, struct qce_req *q_req) |
| 4940 | { |
| 4941 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 4942 | struct aead_request *areq; |
| 4943 | uint32_t authsize; |
| 4944 | struct crypto_aead *aead; |
| 4945 | uint32_t ivsize; |
| 4946 | uint32_t totallen; |
| 4947 | int rc = 0; |
| 4948 | struct qce_cmdlist_info *cmdlistinfo = NULL; |
| 4949 | int req_info = -1; |
| 4950 | struct ce_sps_data *pce_sps_data; |
| 4951 | struct ce_request_info *preq_info; |
| 4952 | |
| 4953 | if (q_req->mode == QCE_MODE_CCM) |
| 4954 | return _qce_aead_ccm_req(handle, q_req); |
| 4955 | |
| 4956 | req_info = qce_alloc_req_info(pce_dev); |
| 4957 | if (req_info < 0) |
| 4958 | return -EBUSY; |
| 4959 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 4960 | pce_sps_data = &preq_info->ce_sps; |
| 4961 | areq = (struct aead_request *) q_req->areq; |
| 4962 | aead = crypto_aead_reqtfm(areq); |
| 4963 | ivsize = crypto_aead_ivsize(aead); |
| 4964 | q_req->ivsize = ivsize; |
| 4965 | authsize = q_req->authsize; |
| 4966 | if (q_req->dir == QCE_ENCRYPT) |
| 4967 | q_req->cryptlen = areq->cryptlen; |
| 4968 | else |
| 4969 | q_req->cryptlen = areq->cryptlen - authsize; |
| 4970 | |
| 4971 | if (q_req->cryptlen > UINT_MAX - areq->assoclen) { |
| 4972 | pr_err("Integer overflow on total aead req length.\n"); |
| 4973 | return -EINVAL; |
| 4974 | } |
| 4975 | |
| 4976 | totallen = q_req->cryptlen + areq->assoclen; |
| 4977 | |
| 4978 | if (pce_dev->support_cmd_dscr) { |
| 4979 | cmdlistinfo = _ce_get_aead_cmdlistinfo(pce_dev, |
| 4980 | req_info, q_req); |
| 4981 | if (cmdlistinfo == NULL) { |
| 4982 | pr_err("Unsupported aead ciphering algorithm %d, mode %d, ciphering key length %d, auth digest size %d\n", |
| 4983 | q_req->alg, q_req->mode, q_req->encklen, |
| 4984 | q_req->authsize); |
| 4985 | qce_free_req_info(pce_dev, req_info, false); |
| 4986 | return -EINVAL; |
| 4987 | } |
| 4988 | /* set up crypto device */ |
| 4989 | rc = _ce_setup_aead(pce_dev, q_req, totallen, |
| 4990 | areq->assoclen, cmdlistinfo); |
| 4991 | if (rc < 0) { |
| 4992 | qce_free_req_info(pce_dev, req_info, false); |
| 4993 | return -EINVAL; |
| 4994 | } |
| 4995 | } |
| 4996 | |
| 4997 | /* |
| 4998 | * For crypto 5.0 that has burst size alignment requirement |
| 4999 | * for data descritpor, |
| 5000 | * the agent above(qcrypto) prepares the src scatter list with |
| 5001 | * memory starting with associated data, followed by |
| 5002 | * iv, and data stream to be ciphered. |
| 5003 | */ |
| 5004 | preq_info->src_nents = count_sg(areq->src, totallen); |
| 5005 | |
| 5006 | |
| 5007 | /* cipher input */ |
| 5008 | qce_dma_map_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 5009 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 5010 | DMA_TO_DEVICE); |
| 5011 | /* cipher output for encryption */ |
| 5012 | if (areq->src != areq->dst) { |
| 5013 | preq_info->dst_nents = count_sg(areq->dst, totallen); |
| 5014 | |
| 5015 | qce_dma_map_sg(pce_dev->pdev, areq->dst, preq_info->dst_nents, |
| 5016 | DMA_FROM_DEVICE); |
| 5017 | } |
| 5018 | |
| 5019 | |
| 5020 | /* setup for callback, and issue command to bam */ |
| 5021 | preq_info->areq = q_req->areq; |
| 5022 | preq_info->qce_cb = q_req->qce_cb; |
| 5023 | preq_info->dir = q_req->dir; |
| 5024 | preq_info->asg = NULL; |
| 5025 | |
| 5026 | /* setup xfer type for producer callback handling */ |
| 5027 | preq_info->xfer_type = QCE_XFER_AEAD; |
| 5028 | preq_info->req_len = totallen; |
| 5029 | |
| 5030 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5031 | |
| 5032 | if (pce_dev->support_cmd_dscr) { |
| 5033 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5034 | &pce_sps_data->in_transfer); |
| 5035 | } else { |
| 5036 | rc = _ce_setup_aead_direct(pce_dev, q_req, totallen, |
| 5037 | areq->assoclen); |
| 5038 | if (rc) |
| 5039 | goto bad; |
| 5040 | } |
| 5041 | |
| 5042 | preq_info->mode = q_req->mode; |
| 5043 | |
| 5044 | if (pce_dev->ce_bam_info.minor_version == 0) { |
| 5045 | if (_qce_sps_add_sg_data(pce_dev, areq->src, totallen, |
| 5046 | &pce_sps_data->in_transfer)) |
| 5047 | goto bad; |
| 5048 | |
| 5049 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5050 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5051 | |
| 5052 | if (_qce_sps_add_sg_data(pce_dev, areq->dst, totallen, |
| 5053 | &pce_sps_data->out_transfer)) |
| 5054 | goto bad; |
| 5055 | if (totallen > SPS_MAX_PKT_SIZE) { |
| 5056 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 5057 | SPS_IOVEC_FLAG_INT); |
| 5058 | pce_sps_data->producer_state = QCE_PIPE_STATE_IDLE; |
| 5059 | } else { |
| 5060 | if (_qce_sps_add_data(GET_PHYS_ADDR( |
| 5061 | pce_sps_data->result_dump), |
| 5062 | CRYPTO_RESULT_DUMP_SIZE, |
| 5063 | &pce_sps_data->out_transfer)) |
| 5064 | goto bad; |
| 5065 | _qce_set_flag(&pce_sps_data->out_transfer, |
| 5066 | SPS_IOVEC_FLAG_INT); |
| 5067 | pce_sps_data->producer_state = QCE_PIPE_STATE_COMP; |
| 5068 | } |
| 5069 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5070 | } else { |
| 5071 | if (_qce_sps_add_sg_data(pce_dev, areq->src, totallen, |
| 5072 | &pce_sps_data->in_transfer)) |
| 5073 | goto bad; |
| 5074 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5075 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5076 | |
| 5077 | if (pce_dev->no_get_around) |
| 5078 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5079 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5080 | &pce_sps_data->in_transfer); |
| 5081 | |
| 5082 | if (_qce_sps_add_sg_data(pce_dev, areq->dst, totallen, |
| 5083 | &pce_sps_data->out_transfer)) |
| 5084 | goto bad; |
| 5085 | |
| 5086 | if (pce_dev->no_get_around || totallen <= SPS_MAX_PKT_SIZE) { |
| 5087 | if (_qce_sps_add_data( |
| 5088 | GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5089 | CRYPTO_RESULT_DUMP_SIZE, |
| 5090 | &pce_sps_data->out_transfer)) |
| 5091 | goto bad; |
| 5092 | pce_sps_data->producer_state = QCE_PIPE_STATE_COMP; |
| 5093 | } else { |
| 5094 | pce_sps_data->producer_state = QCE_PIPE_STATE_IDLE; |
| 5095 | } |
| 5096 | select_mode(pce_dev, preq_info); |
| 5097 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5098 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5099 | } |
| 5100 | if (rc) |
| 5101 | goto bad; |
| 5102 | return 0; |
| 5103 | |
| 5104 | bad: |
| 5105 | if (preq_info->src_nents) |
| 5106 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 5107 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 5108 | DMA_TO_DEVICE); |
| 5109 | if (areq->src != areq->dst) |
| 5110 | qce_dma_unmap_sg(pce_dev->pdev, areq->dst, preq_info->dst_nents, |
| 5111 | DMA_FROM_DEVICE); |
| 5112 | qce_free_req_info(pce_dev, req_info, false); |
| 5113 | |
| 5114 | return rc; |
| 5115 | } |
| 5116 | EXPORT_SYMBOL(qce_aead_req); |
| 5117 | |
| 5118 | int qce_ablk_cipher_req(void *handle, struct qce_req *c_req) |
| 5119 | { |
| 5120 | int rc = 0; |
| 5121 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5122 | struct ablkcipher_request *areq = (struct ablkcipher_request *) |
| 5123 | c_req->areq; |
| 5124 | struct qce_cmdlist_info *cmdlistinfo = NULL; |
| 5125 | int req_info = -1; |
| 5126 | struct ce_sps_data *pce_sps_data; |
| 5127 | struct ce_request_info *preq_info; |
| 5128 | |
| 5129 | req_info = qce_alloc_req_info(pce_dev); |
| 5130 | if (req_info < 0) |
| 5131 | return -EBUSY; |
| 5132 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 5133 | pce_sps_data = &preq_info->ce_sps; |
| 5134 | |
| 5135 | preq_info->src_nents = 0; |
| 5136 | preq_info->dst_nents = 0; |
| 5137 | |
| 5138 | /* cipher input */ |
| 5139 | preq_info->src_nents = count_sg(areq->src, areq->nbytes); |
| 5140 | |
| 5141 | qce_dma_map_sg(pce_dev->pdev, areq->src, preq_info->src_nents, |
| 5142 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : |
| 5143 | DMA_TO_DEVICE); |
| 5144 | /* cipher output */ |
| 5145 | if (areq->src != areq->dst) { |
| 5146 | preq_info->dst_nents = count_sg(areq->dst, areq->nbytes); |
| 5147 | qce_dma_map_sg(pce_dev->pdev, areq->dst, |
| 5148 | preq_info->dst_nents, DMA_FROM_DEVICE); |
| 5149 | } else { |
| 5150 | preq_info->dst_nents = preq_info->src_nents; |
| 5151 | } |
| 5152 | preq_info->dir = c_req->dir; |
| 5153 | if ((pce_dev->ce_bam_info.minor_version == 0) && |
| 5154 | (preq_info->dir == QCE_DECRYPT) && |
| 5155 | (c_req->mode == QCE_MODE_CBC)) { |
| 5156 | memcpy(preq_info->dec_iv, (unsigned char *) |
| 5157 | sg_virt(areq->src) + areq->src->length - 16, |
| 5158 | NUM_OF_CRYPTO_CNTR_IV_REG * CRYPTO_REG_SIZE); |
| 5159 | } |
| 5160 | |
| 5161 | /* set up crypto device */ |
| 5162 | if (pce_dev->support_cmd_dscr) { |
| 5163 | cmdlistinfo = _ce_get_cipher_cmdlistinfo(pce_dev, |
| 5164 | req_info, c_req); |
| 5165 | if (cmdlistinfo == NULL) { |
| 5166 | pr_err("Unsupported cipher algorithm %d, mode %d\n", |
| 5167 | c_req->alg, c_req->mode); |
| 5168 | qce_free_req_info(pce_dev, req_info, false); |
| 5169 | return -EINVAL; |
| 5170 | } |
| 5171 | rc = _ce_setup_cipher(pce_dev, c_req, areq->nbytes, 0, |
| 5172 | cmdlistinfo); |
| 5173 | } else { |
| 5174 | rc = _ce_setup_cipher_direct(pce_dev, c_req, areq->nbytes, 0); |
| 5175 | } |
| 5176 | if (rc < 0) |
| 5177 | goto bad; |
| 5178 | |
| 5179 | preq_info->mode = c_req->mode; |
| 5180 | |
| 5181 | /* setup for client callback, and issue command to BAM */ |
| 5182 | preq_info->areq = areq; |
| 5183 | preq_info->qce_cb = c_req->qce_cb; |
| 5184 | |
| 5185 | /* setup xfer type for producer callback handling */ |
| 5186 | preq_info->xfer_type = QCE_XFER_CIPHERING; |
| 5187 | preq_info->req_len = areq->nbytes; |
| 5188 | |
| 5189 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5190 | if (pce_dev->support_cmd_dscr) |
| 5191 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5192 | &pce_sps_data->in_transfer); |
| 5193 | if (_qce_sps_add_sg_data(pce_dev, areq->src, areq->nbytes, |
| 5194 | &pce_sps_data->in_transfer)) |
| 5195 | goto bad; |
| 5196 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5197 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5198 | |
| 5199 | if (pce_dev->no_get_around) |
| 5200 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5201 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5202 | &pce_sps_data->in_transfer); |
| 5203 | |
| 5204 | if (_qce_sps_add_sg_data(pce_dev, areq->dst, areq->nbytes, |
| 5205 | &pce_sps_data->out_transfer)) |
| 5206 | goto bad; |
| 5207 | if (pce_dev->no_get_around || areq->nbytes <= SPS_MAX_PKT_SIZE) { |
| 5208 | pce_sps_data->producer_state = QCE_PIPE_STATE_COMP; |
| 5209 | if (_qce_sps_add_data( |
| 5210 | GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5211 | CRYPTO_RESULT_DUMP_SIZE, |
| 5212 | &pce_sps_data->out_transfer)) |
| 5213 | goto bad; |
| 5214 | } else { |
| 5215 | pce_sps_data->producer_state = QCE_PIPE_STATE_IDLE; |
| 5216 | } |
| 5217 | |
| 5218 | select_mode(pce_dev, preq_info); |
| 5219 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5220 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5221 | if (rc) |
| 5222 | goto bad; |
| 5223 | |
| 5224 | return 0; |
| 5225 | bad: |
| 5226 | if (areq->src != areq->dst) { |
| 5227 | if (preq_info->dst_nents) { |
| 5228 | qce_dma_unmap_sg(pce_dev->pdev, areq->dst, |
| 5229 | preq_info->dst_nents, DMA_FROM_DEVICE); |
| 5230 | } |
| 5231 | } |
| 5232 | if (preq_info->src_nents) { |
| 5233 | qce_dma_unmap_sg(pce_dev->pdev, areq->src, |
| 5234 | preq_info->src_nents, |
| 5235 | (areq->src == areq->dst) ? |
| 5236 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| 5237 | } |
| 5238 | qce_free_req_info(pce_dev, req_info, false); |
| 5239 | return rc; |
| 5240 | } |
| 5241 | EXPORT_SYMBOL(qce_ablk_cipher_req); |
| 5242 | |
| 5243 | int qce_process_sha_req(void *handle, struct qce_sha_req *sreq) |
| 5244 | { |
| 5245 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5246 | int rc; |
| 5247 | |
| 5248 | struct ahash_request *areq; |
| 5249 | struct qce_cmdlist_info *cmdlistinfo = NULL; |
| 5250 | int req_info = -1; |
| 5251 | struct ce_sps_data *pce_sps_data; |
| 5252 | struct ce_request_info *preq_info; |
| 5253 | bool is_dummy = false; |
| 5254 | |
| 5255 | if (!sreq) { |
| 5256 | sreq = &(pce_dev->dummyreq.sreq); |
| 5257 | req_info = DUMMY_REQ_INDEX; |
| 5258 | is_dummy = true; |
| 5259 | } else { |
| 5260 | req_info = qce_alloc_req_info(pce_dev); |
| 5261 | if (req_info < 0) |
| 5262 | return -EBUSY; |
| 5263 | } |
| 5264 | |
| 5265 | areq = (struct ahash_request *)sreq->areq; |
| 5266 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 5267 | pce_sps_data = &preq_info->ce_sps; |
| 5268 | |
| 5269 | preq_info->src_nents = count_sg(sreq->src, sreq->size); |
| 5270 | qce_dma_map_sg(pce_dev->pdev, sreq->src, preq_info->src_nents, |
| 5271 | DMA_TO_DEVICE); |
| 5272 | |
| 5273 | if (pce_dev->support_cmd_dscr) { |
| 5274 | cmdlistinfo = _ce_get_hash_cmdlistinfo(pce_dev, req_info, sreq); |
| 5275 | if (cmdlistinfo == NULL) { |
| 5276 | pr_err("Unsupported hash algorithm %d\n", sreq->alg); |
| 5277 | qce_free_req_info(pce_dev, req_info, false); |
| 5278 | return -EINVAL; |
| 5279 | } |
| 5280 | rc = _ce_setup_hash(pce_dev, sreq, cmdlistinfo); |
| 5281 | } else { |
| 5282 | rc = _ce_setup_hash_direct(pce_dev, sreq); |
| 5283 | } |
| 5284 | if (rc < 0) |
| 5285 | goto bad; |
| 5286 | |
| 5287 | preq_info->areq = areq; |
| 5288 | preq_info->qce_cb = sreq->qce_cb; |
| 5289 | |
| 5290 | /* setup xfer type for producer callback handling */ |
| 5291 | preq_info->xfer_type = QCE_XFER_HASHING; |
| 5292 | preq_info->req_len = sreq->size; |
| 5293 | |
| 5294 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5295 | |
| 5296 | if (pce_dev->support_cmd_dscr) |
| 5297 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5298 | &pce_sps_data->in_transfer); |
| 5299 | if (_qce_sps_add_sg_data(pce_dev, areq->src, areq->nbytes, |
| 5300 | &pce_sps_data->in_transfer)) |
| 5301 | goto bad; |
| 5302 | |
| 5303 | /* always ensure there is input data. ZLT does not work for bam-ndp */ |
| 5304 | if (!areq->nbytes) |
| 5305 | _qce_sps_add_data( |
| 5306 | GET_PHYS_ADDR(pce_sps_data->ignore_buffer), |
| 5307 | pce_dev->ce_bam_info.ce_burst_size, |
| 5308 | &pce_sps_data->in_transfer); |
| 5309 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5310 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5311 | if (pce_dev->no_get_around) |
| 5312 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5313 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5314 | &pce_sps_data->in_transfer); |
| 5315 | |
| 5316 | if (_qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5317 | CRYPTO_RESULT_DUMP_SIZE, |
| 5318 | &pce_sps_data->out_transfer)) |
| 5319 | goto bad; |
| 5320 | |
| 5321 | if (is_dummy) { |
| 5322 | _qce_set_flag(&pce_sps_data->out_transfer, SPS_IOVEC_FLAG_INT); |
| 5323 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5324 | } else { |
| 5325 | select_mode(pce_dev, preq_info); |
| 5326 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5327 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5328 | } |
| 5329 | if (rc) |
| 5330 | goto bad; |
| 5331 | return 0; |
| 5332 | bad: |
| 5333 | if (preq_info->src_nents) { |
| 5334 | qce_dma_unmap_sg(pce_dev->pdev, sreq->src, |
| 5335 | preq_info->src_nents, DMA_TO_DEVICE); |
| 5336 | } |
| 5337 | qce_free_req_info(pce_dev, req_info, false); |
| 5338 | return rc; |
| 5339 | } |
| 5340 | EXPORT_SYMBOL(qce_process_sha_req); |
| 5341 | |
| 5342 | int qce_f8_req(void *handle, struct qce_f8_req *req, |
| 5343 | void *cookie, qce_comp_func_ptr_t qce_cb) |
| 5344 | { |
| 5345 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5346 | bool key_stream_mode; |
| 5347 | dma_addr_t dst; |
| 5348 | int rc; |
| 5349 | struct qce_cmdlist_info *cmdlistinfo; |
| 5350 | int req_info = -1; |
| 5351 | struct ce_request_info *preq_info; |
| 5352 | struct ce_sps_data *pce_sps_data; |
| 5353 | |
| 5354 | req_info = qce_alloc_req_info(pce_dev); |
| 5355 | if (req_info < 0) |
| 5356 | return -EBUSY; |
| 5357 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 5358 | pce_sps_data = &preq_info->ce_sps; |
| 5359 | |
| 5360 | switch (req->algorithm) { |
| 5361 | case QCE_OTA_ALGO_KASUMI: |
| 5362 | cmdlistinfo = &pce_sps_data->cmdlistptr.f8_kasumi; |
| 5363 | break; |
| 5364 | case QCE_OTA_ALGO_SNOW3G: |
| 5365 | cmdlistinfo = &pce_sps_data->cmdlistptr.f8_snow3g; |
| 5366 | break; |
| 5367 | default: |
| 5368 | qce_free_req_info(pce_dev, req_info, false); |
| 5369 | return -EINVAL; |
| 5370 | }; |
| 5371 | |
| 5372 | key_stream_mode = (req->data_in == NULL); |
| 5373 | |
| 5374 | /* don't support key stream mode */ |
| 5375 | |
| 5376 | if (key_stream_mode || (req->bearer >= QCE_OTA_MAX_BEARER)) { |
| 5377 | qce_free_req_info(pce_dev, req_info, false); |
| 5378 | return -EINVAL; |
| 5379 | } |
| 5380 | |
| 5381 | /* F8 cipher input */ |
| 5382 | preq_info->phy_ota_src = dma_map_single(pce_dev->pdev, |
| 5383 | req->data_in, req->data_len, |
| 5384 | (req->data_in == req->data_out) ? |
| 5385 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| 5386 | |
| 5387 | /* F8 cipher output */ |
| 5388 | if (req->data_in != req->data_out) { |
| 5389 | dst = dma_map_single(pce_dev->pdev, req->data_out, |
| 5390 | req->data_len, DMA_FROM_DEVICE); |
| 5391 | preq_info->phy_ota_dst = dst; |
| 5392 | } else { |
| 5393 | /* in place ciphering */ |
| 5394 | dst = preq_info->phy_ota_src; |
| 5395 | preq_info->phy_ota_dst = 0; |
| 5396 | } |
| 5397 | preq_info->ota_size = req->data_len; |
| 5398 | |
| 5399 | |
| 5400 | /* set up crypto device */ |
| 5401 | if (pce_dev->support_cmd_dscr) |
| 5402 | rc = _ce_f8_setup(pce_dev, req, key_stream_mode, 1, 0, |
| 5403 | req->data_len, cmdlistinfo); |
| 5404 | else |
| 5405 | rc = _ce_f8_setup_direct(pce_dev, req, key_stream_mode, 1, 0, |
| 5406 | req->data_len); |
| 5407 | if (rc < 0) |
| 5408 | goto bad; |
| 5409 | |
| 5410 | /* setup for callback, and issue command to sps */ |
| 5411 | preq_info->areq = cookie; |
| 5412 | preq_info->qce_cb = qce_cb; |
| 5413 | |
| 5414 | /* setup xfer type for producer callback handling */ |
| 5415 | preq_info->xfer_type = QCE_XFER_F8; |
| 5416 | preq_info->req_len = req->data_len; |
| 5417 | |
| 5418 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5419 | |
| 5420 | if (pce_dev->support_cmd_dscr) |
| 5421 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5422 | &pce_sps_data->in_transfer); |
| 5423 | |
| 5424 | _qce_sps_add_data((uint32_t)preq_info->phy_ota_src, req->data_len, |
| 5425 | &pce_sps_data->in_transfer); |
| 5426 | |
| 5427 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5428 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5429 | |
| 5430 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5431 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5432 | &pce_sps_data->in_transfer); |
| 5433 | |
| 5434 | _qce_sps_add_data((uint32_t)dst, req->data_len, |
| 5435 | &pce_sps_data->out_transfer); |
| 5436 | |
| 5437 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5438 | CRYPTO_RESULT_DUMP_SIZE, |
| 5439 | &pce_sps_data->out_transfer); |
| 5440 | |
| 5441 | select_mode(pce_dev, preq_info); |
| 5442 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5443 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5444 | if (rc) |
| 5445 | goto bad; |
| 5446 | return 0; |
| 5447 | bad: |
| 5448 | if (preq_info->phy_ota_dst != 0) |
| 5449 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_dst, |
| 5450 | req->data_len, DMA_FROM_DEVICE); |
| 5451 | if (preq_info->phy_ota_src != 0) |
| 5452 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_src, |
| 5453 | req->data_len, |
| 5454 | (req->data_in == req->data_out) ? |
| 5455 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| 5456 | qce_free_req_info(pce_dev, req_info, false); |
| 5457 | return rc; |
| 5458 | } |
| 5459 | EXPORT_SYMBOL(qce_f8_req); |
| 5460 | |
| 5461 | int qce_f8_multi_pkt_req(void *handle, struct qce_f8_multi_pkt_req *mreq, |
| 5462 | void *cookie, qce_comp_func_ptr_t qce_cb) |
| 5463 | { |
| 5464 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5465 | uint16_t num_pkt = mreq->num_pkt; |
| 5466 | uint16_t cipher_start = mreq->cipher_start; |
| 5467 | uint16_t cipher_size = mreq->cipher_size; |
| 5468 | struct qce_f8_req *req = &mreq->qce_f8_req; |
| 5469 | uint32_t total; |
| 5470 | dma_addr_t dst = 0; |
| 5471 | int rc = 0; |
| 5472 | struct qce_cmdlist_info *cmdlistinfo; |
| 5473 | int req_info = -1; |
| 5474 | struct ce_request_info *preq_info; |
| 5475 | struct ce_sps_data *pce_sps_data; |
| 5476 | |
| 5477 | req_info = qce_alloc_req_info(pce_dev); |
| 5478 | if (req_info < 0) |
| 5479 | return -EBUSY; |
| 5480 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 5481 | pce_sps_data = &preq_info->ce_sps; |
| 5482 | |
| 5483 | switch (req->algorithm) { |
| 5484 | case QCE_OTA_ALGO_KASUMI: |
| 5485 | cmdlistinfo = &pce_sps_data->cmdlistptr.f8_kasumi; |
| 5486 | break; |
| 5487 | case QCE_OTA_ALGO_SNOW3G: |
| 5488 | cmdlistinfo = &pce_sps_data->cmdlistptr.f8_snow3g; |
| 5489 | break; |
| 5490 | default: |
| 5491 | qce_free_req_info(pce_dev, req_info, false); |
| 5492 | return -EINVAL; |
| 5493 | }; |
| 5494 | |
| 5495 | total = num_pkt * req->data_len; |
| 5496 | |
| 5497 | /* F8 cipher input */ |
| 5498 | preq_info->phy_ota_src = dma_map_single(pce_dev->pdev, |
| 5499 | req->data_in, total, |
| 5500 | (req->data_in == req->data_out) ? |
| 5501 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| 5502 | |
| 5503 | /* F8 cipher output */ |
| 5504 | if (req->data_in != req->data_out) { |
| 5505 | dst = dma_map_single(pce_dev->pdev, req->data_out, total, |
| 5506 | DMA_FROM_DEVICE); |
| 5507 | preq_info->phy_ota_dst = dst; |
| 5508 | } else { |
| 5509 | /* in place ciphering */ |
| 5510 | dst = preq_info->phy_ota_src; |
| 5511 | preq_info->phy_ota_dst = 0; |
| 5512 | } |
| 5513 | |
| 5514 | preq_info->ota_size = total; |
| 5515 | |
| 5516 | /* set up crypto device */ |
| 5517 | if (pce_dev->support_cmd_dscr) |
| 5518 | rc = _ce_f8_setup(pce_dev, req, false, num_pkt, cipher_start, |
| 5519 | cipher_size, cmdlistinfo); |
| 5520 | else |
| 5521 | rc = _ce_f8_setup_direct(pce_dev, req, false, num_pkt, |
| 5522 | cipher_start, cipher_size); |
| 5523 | if (rc) |
| 5524 | goto bad; |
| 5525 | |
| 5526 | /* setup for callback, and issue command to sps */ |
| 5527 | preq_info->areq = cookie; |
| 5528 | preq_info->qce_cb = qce_cb; |
| 5529 | |
| 5530 | /* setup xfer type for producer callback handling */ |
| 5531 | preq_info->xfer_type = QCE_XFER_F8; |
| 5532 | preq_info->req_len = total; |
| 5533 | |
| 5534 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5535 | |
| 5536 | if (pce_dev->support_cmd_dscr) |
| 5537 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5538 | &pce_sps_data->in_transfer); |
| 5539 | |
| 5540 | _qce_sps_add_data((uint32_t)preq_info->phy_ota_src, total, |
| 5541 | &pce_sps_data->in_transfer); |
| 5542 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5543 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5544 | |
| 5545 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5546 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5547 | &pce_sps_data->in_transfer); |
| 5548 | |
| 5549 | _qce_sps_add_data((uint32_t)dst, total, |
| 5550 | &pce_sps_data->out_transfer); |
| 5551 | |
| 5552 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5553 | CRYPTO_RESULT_DUMP_SIZE, |
| 5554 | &pce_sps_data->out_transfer); |
| 5555 | |
| 5556 | select_mode(pce_dev, preq_info); |
| 5557 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5558 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5559 | |
| 5560 | if (rc == 0) |
| 5561 | return 0; |
| 5562 | bad: |
| 5563 | if (preq_info->phy_ota_dst) |
| 5564 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_dst, total, |
| 5565 | DMA_FROM_DEVICE); |
| 5566 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_src, total, |
| 5567 | (req->data_in == req->data_out) ? |
| 5568 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| 5569 | qce_free_req_info(pce_dev, req_info, false); |
| 5570 | return rc; |
| 5571 | } |
| 5572 | EXPORT_SYMBOL(qce_f8_multi_pkt_req); |
| 5573 | |
| 5574 | int qce_f9_req(void *handle, struct qce_f9_req *req, void *cookie, |
| 5575 | qce_comp_func_ptr_t qce_cb) |
| 5576 | { |
| 5577 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5578 | int rc; |
| 5579 | struct qce_cmdlist_info *cmdlistinfo; |
| 5580 | int req_info = -1; |
| 5581 | struct ce_sps_data *pce_sps_data; |
| 5582 | struct ce_request_info *preq_info; |
| 5583 | |
| 5584 | req_info = qce_alloc_req_info(pce_dev); |
| 5585 | if (req_info < 0) |
| 5586 | return -EBUSY; |
| 5587 | preq_info = &pce_dev->ce_request_info[req_info]; |
| 5588 | pce_sps_data = &preq_info->ce_sps; |
| 5589 | switch (req->algorithm) { |
| 5590 | case QCE_OTA_ALGO_KASUMI: |
| 5591 | cmdlistinfo = &pce_sps_data->cmdlistptr.f9_kasumi; |
| 5592 | break; |
| 5593 | case QCE_OTA_ALGO_SNOW3G: |
| 5594 | cmdlistinfo = &pce_sps_data->cmdlistptr.f9_snow3g; |
| 5595 | break; |
| 5596 | default: |
| 5597 | qce_free_req_info(pce_dev, req_info, false); |
| 5598 | return -EINVAL; |
| 5599 | }; |
| 5600 | |
| 5601 | preq_info->phy_ota_src = dma_map_single(pce_dev->pdev, req->message, |
| 5602 | req->msize, DMA_TO_DEVICE); |
| 5603 | |
| 5604 | preq_info->ota_size = req->msize; |
| 5605 | |
| 5606 | if (pce_dev->support_cmd_dscr) |
| 5607 | rc = _ce_f9_setup(pce_dev, req, cmdlistinfo); |
| 5608 | else |
| 5609 | rc = _ce_f9_setup_direct(pce_dev, req); |
| 5610 | if (rc < 0) |
| 5611 | goto bad; |
| 5612 | |
| 5613 | /* setup for callback, and issue command to sps */ |
| 5614 | preq_info->areq = cookie; |
| 5615 | preq_info->qce_cb = qce_cb; |
| 5616 | |
| 5617 | /* setup xfer type for producer callback handling */ |
| 5618 | preq_info->xfer_type = QCE_XFER_F9; |
| 5619 | preq_info->req_len = req->msize; |
| 5620 | |
| 5621 | _qce_sps_iovec_count_init(pce_dev, req_info); |
| 5622 | if (pce_dev->support_cmd_dscr) |
| 5623 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_LOCK, cmdlistinfo, |
| 5624 | &pce_sps_data->in_transfer); |
| 5625 | _qce_sps_add_data((uint32_t)preq_info->phy_ota_src, req->msize, |
| 5626 | &pce_sps_data->in_transfer); |
| 5627 | _qce_set_flag(&pce_sps_data->in_transfer, |
| 5628 | SPS_IOVEC_FLAG_EOT|SPS_IOVEC_FLAG_NWD); |
| 5629 | |
| 5630 | _qce_sps_add_cmd(pce_dev, SPS_IOVEC_FLAG_UNLOCK, |
| 5631 | &pce_sps_data->cmdlistptr.unlock_all_pipes, |
| 5632 | &pce_sps_data->in_transfer); |
| 5633 | |
| 5634 | _qce_sps_add_data(GET_PHYS_ADDR(pce_sps_data->result_dump), |
| 5635 | CRYPTO_RESULT_DUMP_SIZE, |
| 5636 | &pce_sps_data->out_transfer); |
| 5637 | |
| 5638 | select_mode(pce_dev, preq_info); |
| 5639 | rc = _qce_sps_transfer(pce_dev, req_info); |
| 5640 | cmpxchg(&pce_dev->owner, QCE_OWNER_CLIENT, QCE_OWNER_NONE); |
| 5641 | if (rc) |
| 5642 | goto bad; |
| 5643 | return 0; |
| 5644 | bad: |
| 5645 | dma_unmap_single(pce_dev->pdev, preq_info->phy_ota_src, |
| 5646 | req->msize, DMA_TO_DEVICE); |
| 5647 | qce_free_req_info(pce_dev, req_info, false); |
| 5648 | return rc; |
| 5649 | } |
| 5650 | EXPORT_SYMBOL(qce_f9_req); |
| 5651 | |
| 5652 | static int __qce_get_device_tree_data(struct platform_device *pdev, |
| 5653 | struct qce_device *pce_dev) |
| 5654 | { |
| 5655 | struct resource *resource; |
| 5656 | int rc = 0; |
| 5657 | |
| 5658 | pce_dev->is_shared = of_property_read_bool((&pdev->dev)->of_node, |
| 5659 | "qcom,ce-hw-shared"); |
| 5660 | pce_dev->support_hw_key = of_property_read_bool((&pdev->dev)->of_node, |
| 5661 | "qcom,ce-hw-key"); |
| 5662 | |
| 5663 | pce_dev->use_sw_aes_cbc_ecb_ctr_algo = |
| 5664 | of_property_read_bool((&pdev->dev)->of_node, |
| 5665 | "qcom,use-sw-aes-cbc-ecb-ctr-algo"); |
| 5666 | pce_dev->use_sw_aead_algo = |
| 5667 | of_property_read_bool((&pdev->dev)->of_node, |
| 5668 | "qcom,use-sw-aead-algo"); |
| 5669 | pce_dev->use_sw_aes_xts_algo = |
| 5670 | of_property_read_bool((&pdev->dev)->of_node, |
| 5671 | "qcom,use-sw-aes-xts-algo"); |
| 5672 | pce_dev->use_sw_ahash_algo = |
| 5673 | of_property_read_bool((&pdev->dev)->of_node, |
| 5674 | "qcom,use-sw-ahash-algo"); |
| 5675 | pce_dev->use_sw_hmac_algo = |
| 5676 | of_property_read_bool((&pdev->dev)->of_node, |
| 5677 | "qcom,use-sw-hmac-algo"); |
| 5678 | pce_dev->use_sw_aes_ccm_algo = |
| 5679 | of_property_read_bool((&pdev->dev)->of_node, |
| 5680 | "qcom,use-sw-aes-ccm-algo"); |
| 5681 | pce_dev->support_clk_mgmt_sus_res = of_property_read_bool( |
| 5682 | (&pdev->dev)->of_node, "qcom,clk-mgmt-sus-res"); |
| 5683 | pce_dev->support_only_core_src_clk = of_property_read_bool( |
| 5684 | (&pdev->dev)->of_node, "qcom,support-core-clk-only"); |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 5685 | pce_dev->request_bw_before_clk = of_property_read_bool( |
| 5686 | (&pdev->dev)->of_node, "qcom,request-bw-before-clk"); |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5687 | |
| 5688 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 5689 | "qcom,bam-pipe-pair", |
| 5690 | &pce_dev->ce_bam_info.pipe_pair_index)) { |
| 5691 | pr_err("Fail to get bam pipe pair information.\n"); |
| 5692 | return -EINVAL; |
| 5693 | } |
| 5694 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 5695 | "qcom,ce-device", |
| 5696 | &pce_dev->ce_bam_info.ce_device)) { |
| 5697 | pr_err("Fail to get CE device information.\n"); |
| 5698 | return -EINVAL; |
| 5699 | } |
| 5700 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 5701 | "qcom,ce-hw-instance", |
| 5702 | &pce_dev->ce_bam_info.ce_hw_instance)) { |
| 5703 | pr_err("Fail to get CE hw instance information.\n"); |
| 5704 | return -EINVAL; |
| 5705 | } |
| 5706 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 5707 | "qcom,bam-ee", |
| 5708 | &pce_dev->ce_bam_info.bam_ee)) { |
| 5709 | pr_info("BAM Apps EE is not defined, setting to default 1\n"); |
| 5710 | pce_dev->ce_bam_info.bam_ee = 1; |
| 5711 | } |
| 5712 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 5713 | "qcom,ce-opp-freq", |
| 5714 | &pce_dev->ce_opp_freq_hz)) { |
| 5715 | pr_info("CE operating frequency is not defined, setting to default 100MHZ\n"); |
| 5716 | pce_dev->ce_opp_freq_hz = CE_CLK_100MHZ; |
| 5717 | } |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 5718 | |
| 5719 | if (of_property_read_bool((&pdev->dev)->of_node, "qcom,smmu-s1-bypass")) |
| 5720 | pce_dev->bypass_s1_smmu = true; |
| 5721 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5722 | pce_dev->ce_bam_info.dest_pipe_index = |
| 5723 | 2 * pce_dev->ce_bam_info.pipe_pair_index; |
| 5724 | pce_dev->ce_bam_info.src_pipe_index = |
| 5725 | pce_dev->ce_bam_info.dest_pipe_index + 1; |
| 5726 | |
| 5727 | resource = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 5728 | "crypto-base"); |
| 5729 | if (resource) { |
| 5730 | pce_dev->phy_iobase = resource->start; |
| 5731 | pce_dev->iobase = ioremap_nocache(resource->start, |
| 5732 | resource_size(resource)); |
| 5733 | if (!pce_dev->iobase) { |
| 5734 | pr_err("Can not map CRYPTO io memory\n"); |
| 5735 | return -ENOMEM; |
| 5736 | } |
| 5737 | } else { |
| 5738 | pr_err("CRYPTO HW mem unavailable.\n"); |
| 5739 | return -ENODEV; |
| 5740 | } |
| 5741 | |
| 5742 | resource = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| 5743 | "crypto-bam-base"); |
| 5744 | if (resource) { |
| 5745 | pce_dev->bam_mem = resource->start; |
| 5746 | pce_dev->bam_mem_size = resource_size(resource); |
| 5747 | } else { |
| 5748 | pr_err("CRYPTO BAM mem unavailable.\n"); |
| 5749 | rc = -ENODEV; |
| 5750 | goto err_getting_bam_info; |
| 5751 | } |
| 5752 | |
| 5753 | resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 5754 | if (resource) { |
| 5755 | pce_dev->ce_bam_info.bam_irq = resource->start; |
| 5756 | } else { |
| 5757 | pr_err("CRYPTO BAM IRQ unavailable.\n"); |
| 5758 | goto err_dev; |
| 5759 | } |
| 5760 | return rc; |
| 5761 | err_dev: |
| 5762 | if (pce_dev->ce_bam_info.bam_iobase) |
| 5763 | iounmap(pce_dev->ce_bam_info.bam_iobase); |
| 5764 | |
| 5765 | err_getting_bam_info: |
| 5766 | if (pce_dev->iobase) |
| 5767 | iounmap(pce_dev->iobase); |
| 5768 | |
| 5769 | return rc; |
| 5770 | } |
| 5771 | |
| 5772 | static int __qce_init_clk(struct qce_device *pce_dev) |
| 5773 | { |
| 5774 | int rc = 0; |
| 5775 | |
| 5776 | pce_dev->ce_core_src_clk = clk_get(pce_dev->pdev, "core_clk_src"); |
| 5777 | if (!IS_ERR(pce_dev->ce_core_src_clk)) { |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 5778 | if (pce_dev->request_bw_before_clk) |
| 5779 | goto skip_set_rate; |
| 5780 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5781 | rc = clk_set_rate(pce_dev->ce_core_src_clk, |
| 5782 | pce_dev->ce_opp_freq_hz); |
| 5783 | if (rc) { |
| 5784 | pr_err("Unable to set the core src clk @%uMhz.\n", |
| 5785 | pce_dev->ce_opp_freq_hz/CE_CLK_DIV); |
| 5786 | goto exit_put_core_src_clk; |
| 5787 | } |
| 5788 | } else { |
| 5789 | if (pce_dev->support_only_core_src_clk) { |
| 5790 | rc = PTR_ERR(pce_dev->ce_core_src_clk); |
| 5791 | pce_dev->ce_core_src_clk = NULL; |
| 5792 | pr_err("Unable to get CE core src clk\n"); |
| 5793 | return rc; |
| 5794 | } |
| 5795 | pr_warn("Unable to get CE core src clk, set to NULL\n"); |
| 5796 | pce_dev->ce_core_src_clk = NULL; |
| 5797 | } |
| 5798 | |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 5799 | skip_set_rate: |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5800 | if (pce_dev->support_only_core_src_clk) { |
| 5801 | pce_dev->ce_core_clk = NULL; |
| 5802 | pce_dev->ce_clk = NULL; |
| 5803 | pce_dev->ce_bus_clk = NULL; |
| 5804 | } else { |
| 5805 | pce_dev->ce_core_clk = clk_get(pce_dev->pdev, "core_clk"); |
| 5806 | if (IS_ERR(pce_dev->ce_core_clk)) { |
| 5807 | rc = PTR_ERR(pce_dev->ce_core_clk); |
| 5808 | pr_err("Unable to get CE core clk\n"); |
| 5809 | goto exit_put_core_src_clk; |
| 5810 | } |
| 5811 | pce_dev->ce_clk = clk_get(pce_dev->pdev, "iface_clk"); |
| 5812 | if (IS_ERR(pce_dev->ce_clk)) { |
| 5813 | rc = PTR_ERR(pce_dev->ce_clk); |
| 5814 | pr_err("Unable to get CE interface clk\n"); |
| 5815 | goto exit_put_core_clk; |
| 5816 | } |
| 5817 | |
| 5818 | pce_dev->ce_bus_clk = clk_get(pce_dev->pdev, "bus_clk"); |
| 5819 | if (IS_ERR(pce_dev->ce_bus_clk)) { |
| 5820 | rc = PTR_ERR(pce_dev->ce_bus_clk); |
| 5821 | pr_err("Unable to get CE BUS interface clk\n"); |
| 5822 | goto exit_put_iface_clk; |
| 5823 | } |
| 5824 | } |
| 5825 | return rc; |
| 5826 | |
| 5827 | exit_put_iface_clk: |
| 5828 | if (pce_dev->ce_clk) |
| 5829 | clk_put(pce_dev->ce_clk); |
| 5830 | exit_put_core_clk: |
| 5831 | if (pce_dev->ce_core_clk) |
| 5832 | clk_put(pce_dev->ce_core_clk); |
| 5833 | exit_put_core_src_clk: |
| 5834 | if (pce_dev->ce_core_src_clk) |
| 5835 | clk_put(pce_dev->ce_core_src_clk); |
| 5836 | pr_err("Unable to init CE clks, rc = %d\n", rc); |
| 5837 | return rc; |
| 5838 | } |
| 5839 | |
| 5840 | static void __qce_deinit_clk(struct qce_device *pce_dev) |
| 5841 | { |
| 5842 | if (pce_dev->ce_bus_clk) |
| 5843 | clk_put(pce_dev->ce_bus_clk); |
| 5844 | if (pce_dev->ce_clk) |
| 5845 | clk_put(pce_dev->ce_clk); |
| 5846 | if (pce_dev->ce_core_clk) |
| 5847 | clk_put(pce_dev->ce_core_clk); |
| 5848 | if (pce_dev->ce_core_src_clk) |
| 5849 | clk_put(pce_dev->ce_core_src_clk); |
| 5850 | } |
| 5851 | |
| 5852 | int qce_enable_clk(void *handle) |
| 5853 | { |
| 5854 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 5855 | int rc = 0; |
| 5856 | |
| 5857 | if (pce_dev->ce_core_src_clk) { |
| 5858 | rc = clk_prepare_enable(pce_dev->ce_core_src_clk); |
| 5859 | if (rc) { |
| 5860 | pr_err("Unable to enable/prepare CE core src clk\n"); |
| 5861 | return rc; |
| 5862 | } |
| 5863 | } |
| 5864 | |
| 5865 | if (pce_dev->support_only_core_src_clk) |
| 5866 | return rc; |
| 5867 | |
| 5868 | if (pce_dev->ce_core_clk) { |
| 5869 | rc = clk_prepare_enable(pce_dev->ce_core_clk); |
| 5870 | if (rc) { |
| 5871 | pr_err("Unable to enable/prepare CE core clk\n"); |
| 5872 | goto exit_disable_core_src_clk; |
| 5873 | } |
| 5874 | } |
| 5875 | |
| 5876 | if (pce_dev->ce_clk) { |
| 5877 | rc = clk_prepare_enable(pce_dev->ce_clk); |
| 5878 | if (rc) { |
| 5879 | pr_err("Unable to enable/prepare CE iface clk\n"); |
| 5880 | goto exit_disable_core_clk; |
| 5881 | } |
| 5882 | } |
| 5883 | |
| 5884 | if (pce_dev->ce_bus_clk) { |
| 5885 | rc = clk_prepare_enable(pce_dev->ce_bus_clk); |
| 5886 | if (rc) { |
| 5887 | pr_err("Unable to enable/prepare CE BUS clk\n"); |
| 5888 | goto exit_disable_ce_clk; |
| 5889 | } |
| 5890 | } |
| 5891 | return rc; |
| 5892 | |
| 5893 | exit_disable_ce_clk: |
| 5894 | if (pce_dev->ce_clk) |
| 5895 | clk_disable_unprepare(pce_dev->ce_clk); |
| 5896 | exit_disable_core_clk: |
| 5897 | if (pce_dev->ce_core_clk) |
| 5898 | clk_disable_unprepare(pce_dev->ce_core_clk); |
| 5899 | exit_disable_core_src_clk: |
| 5900 | if (pce_dev->ce_core_src_clk) |
| 5901 | clk_disable_unprepare(pce_dev->ce_core_src_clk); |
| 5902 | return rc; |
| 5903 | } |
| 5904 | EXPORT_SYMBOL(qce_enable_clk); |
| 5905 | |
| 5906 | int qce_disable_clk(void *handle) |
| 5907 | { |
| 5908 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 5909 | int rc = 0; |
| 5910 | |
| 5911 | if (pce_dev->ce_bus_clk) |
| 5912 | clk_disable_unprepare(pce_dev->ce_bus_clk); |
| 5913 | if (pce_dev->ce_clk) |
| 5914 | clk_disable_unprepare(pce_dev->ce_clk); |
| 5915 | if (pce_dev->ce_core_clk) |
| 5916 | clk_disable_unprepare(pce_dev->ce_core_clk); |
| 5917 | if (pce_dev->ce_core_src_clk) |
| 5918 | clk_disable_unprepare(pce_dev->ce_core_src_clk); |
| 5919 | |
| 5920 | return rc; |
| 5921 | } |
| 5922 | EXPORT_SYMBOL(qce_disable_clk); |
| 5923 | |
| 5924 | /* dummy req setup */ |
| 5925 | static int setup_dummy_req(struct qce_device *pce_dev) |
| 5926 | { |
| 5927 | char *input = |
| 5928 | "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqopqrpqrs"; |
| 5929 | int len = DUMMY_REQ_DATA_LEN; |
| 5930 | |
| 5931 | memcpy(pce_dev->dummyreq_in_buf, input, len); |
| 5932 | sg_set_buf(&pce_dev->dummyreq.sg, pce_dev->dummyreq_in_buf, len); |
| 5933 | sg_mark_end(&pce_dev->dummyreq.sg); |
| 5934 | |
| 5935 | pce_dev->dummyreq.sreq.alg = QCE_HASH_SHA1; |
| 5936 | pce_dev->dummyreq.sreq.qce_cb = qce_dummy_complete; |
| 5937 | pce_dev->dummyreq.sreq.src = &pce_dev->dummyreq.sg; |
| 5938 | pce_dev->dummyreq.sreq.auth_data[0] = 0; |
| 5939 | pce_dev->dummyreq.sreq.auth_data[1] = 0; |
| 5940 | pce_dev->dummyreq.sreq.auth_data[2] = 0; |
| 5941 | pce_dev->dummyreq.sreq.auth_data[3] = 0; |
| 5942 | pce_dev->dummyreq.sreq.first_blk = 1; |
| 5943 | pce_dev->dummyreq.sreq.last_blk = 1; |
| 5944 | pce_dev->dummyreq.sreq.size = len; |
| 5945 | pce_dev->dummyreq.sreq.areq = &pce_dev->dummyreq.areq; |
| 5946 | pce_dev->dummyreq.sreq.flags = 0; |
| 5947 | pce_dev->dummyreq.sreq.authkey = NULL; |
| 5948 | |
| 5949 | pce_dev->dummyreq.areq.src = pce_dev->dummyreq.sreq.src; |
| 5950 | pce_dev->dummyreq.areq.nbytes = pce_dev->dummyreq.sreq.size; |
| 5951 | |
| 5952 | return 0; |
| 5953 | } |
| 5954 | |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 5955 | static void qce_iommu_release_iomapping(struct qce_device *pce_dev) |
| 5956 | { |
| 5957 | if (pce_dev->smmu_mapping) |
| 5958 | arm_iommu_release_mapping(pce_dev->smmu_mapping); |
| 5959 | |
| 5960 | pce_dev->smmu_mapping = NULL; |
| 5961 | } |
| 5962 | |
| 5963 | static int qce_smmu_init(struct qce_device *pce_dev) |
| 5964 | { |
| 5965 | struct dma_iommu_mapping *mapping; |
| 5966 | int s1_bypass = 1; |
| 5967 | int ret = 0; |
| 5968 | |
| 5969 | mapping = arm_iommu_create_mapping(&platform_bus_type, |
| 5970 | CRYPTO_SMMU_IOVA_START, CRYPTO_SMMU_IOVA_SIZE); |
| 5971 | if (IS_ERR(mapping)) { |
| 5972 | ret = PTR_ERR(mapping); |
| 5973 | pr_err("Create mapping failed, err = %d\n", ret); |
| 5974 | return ret; |
| 5975 | } |
| 5976 | |
| 5977 | ret = iommu_domain_set_attr(mapping->domain, |
| 5978 | DOMAIN_ATTR_S1_BYPASS, &s1_bypass); |
| 5979 | if (ret < 0) { |
| 5980 | pr_err("Set s1_bypass attribute failed, err = %d\n", ret); |
| 5981 | goto ext_fail_set_attr; |
| 5982 | } |
| 5983 | |
| 5984 | ret = arm_iommu_attach_device(pce_dev->pdev, mapping); |
| 5985 | if (ret < 0) { |
| 5986 | pr_err("Attach device failed, err = %d\n", ret); |
| 5987 | goto ext_fail_set_attr; |
| 5988 | } |
| 5989 | pce_dev->smmu_mapping = mapping; |
| 5990 | return ret; |
| 5991 | |
| 5992 | ext_fail_set_attr: |
| 5993 | qce_iommu_release_iomapping(pce_dev); |
| 5994 | return ret; |
| 5995 | } |
| 5996 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5997 | /* crypto engine open function. */ |
| 5998 | void *qce_open(struct platform_device *pdev, int *rc) |
| 5999 | { |
| 6000 | struct qce_device *pce_dev; |
| 6001 | int i; |
| 6002 | static int pcedev_no = 1; |
| 6003 | |
| 6004 | pce_dev = kzalloc(sizeof(struct qce_device), GFP_KERNEL); |
| 6005 | if (!pce_dev) { |
| 6006 | *rc = -ENOMEM; |
| 6007 | pr_err("Can not allocate memory: %d\n", *rc); |
| 6008 | return NULL; |
| 6009 | } |
| 6010 | pce_dev->pdev = &pdev->dev; |
| 6011 | |
| 6012 | mutex_lock(&qce_iomap_mutex); |
| 6013 | if (pdev->dev.of_node) { |
| 6014 | *rc = __qce_get_device_tree_data(pdev, pce_dev); |
| 6015 | if (*rc) |
| 6016 | goto err_pce_dev; |
| 6017 | } else { |
| 6018 | *rc = -EINVAL; |
| 6019 | pr_err("Device Node not found.\n"); |
| 6020 | goto err_pce_dev; |
| 6021 | } |
| 6022 | |
| 6023 | for (i = 0; i < MAX_QCE_ALLOC_BAM_REQ; i++) |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 6024 | atomic_set(&pce_dev->ce_request_info[i].in_use, false); |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6025 | pce_dev->ce_request_index = 0; |
| 6026 | |
| 6027 | pce_dev->memsize = 10 * PAGE_SIZE * MAX_QCE_ALLOC_BAM_REQ; |
| 6028 | pce_dev->coh_vmem = dma_alloc_coherent(pce_dev->pdev, |
| 6029 | pce_dev->memsize, &pce_dev->coh_pmem, GFP_KERNEL); |
| 6030 | |
| 6031 | if (pce_dev->coh_vmem == NULL) { |
| 6032 | *rc = -ENOMEM; |
| 6033 | pr_err("Can not allocate coherent memory for sps data\n"); |
| 6034 | goto err_iobase; |
| 6035 | } |
| 6036 | |
| 6037 | pce_dev->iovec_memsize = TOTAL_IOVEC_SPACE_PER_PIPE * |
| 6038 | MAX_QCE_ALLOC_BAM_REQ * 2; |
| 6039 | pce_dev->iovec_vmem = kzalloc(pce_dev->iovec_memsize, GFP_KERNEL); |
| 6040 | if (pce_dev->iovec_vmem == NULL) |
| 6041 | goto err_mem; |
| 6042 | |
| 6043 | pce_dev->dummyreq_in_buf = kzalloc(DUMMY_REQ_DATA_LEN, GFP_KERNEL); |
| 6044 | if (pce_dev->dummyreq_in_buf == NULL) |
| 6045 | goto err_mem; |
| 6046 | |
| 6047 | *rc = __qce_init_clk(pce_dev); |
| 6048 | if (*rc) |
| 6049 | goto err_mem; |
| 6050 | *rc = qce_enable_clk(pce_dev); |
| 6051 | if (*rc) |
| 6052 | goto err_enable_clk; |
| 6053 | |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 6054 | if (pce_dev->bypass_s1_smmu) { |
| 6055 | if (qce_smmu_init(pce_dev)) { |
| 6056 | *rc = -EIO; |
| 6057 | goto err_smmu; |
| 6058 | } |
| 6059 | } |
| 6060 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6061 | if (_probe_ce_engine(pce_dev)) { |
| 6062 | *rc = -ENXIO; |
| 6063 | goto err; |
| 6064 | } |
| 6065 | *rc = 0; |
| 6066 | |
| 6067 | qce_init_ce_cfg_val(pce_dev); |
| 6068 | *rc = qce_sps_init(pce_dev); |
| 6069 | if (*rc) |
| 6070 | goto err; |
| 6071 | qce_setup_ce_sps_data(pce_dev); |
| 6072 | qce_disable_clk(pce_dev); |
| 6073 | setup_dummy_req(pce_dev); |
| 6074 | atomic_set(&pce_dev->no_of_queued_req, 0); |
| 6075 | pce_dev->mode = IN_INTERRUPT_MODE; |
| 6076 | init_timer(&(pce_dev->timer)); |
| 6077 | pce_dev->timer.function = qce_multireq_timeout; |
| 6078 | pce_dev->timer.data = (unsigned long)pce_dev; |
| 6079 | pce_dev->timer.expires = jiffies + DELAY_IN_JIFFIES; |
| 6080 | pce_dev->intr_cadence = 0; |
| 6081 | pce_dev->dev_no = pcedev_no; |
| 6082 | pcedev_no++; |
| 6083 | pce_dev->owner = QCE_OWNER_NONE; |
| 6084 | mutex_unlock(&qce_iomap_mutex); |
| 6085 | return pce_dev; |
| 6086 | err: |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 6087 | if (pce_dev->bypass_s1_smmu) |
| 6088 | qce_iommu_release_iomapping(pce_dev); |
| 6089 | err_smmu: |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6090 | qce_disable_clk(pce_dev); |
| 6091 | |
| 6092 | err_enable_clk: |
| 6093 | __qce_deinit_clk(pce_dev); |
| 6094 | |
| 6095 | err_mem: |
| 6096 | kfree(pce_dev->dummyreq_in_buf); |
| 6097 | kfree(pce_dev->iovec_vmem); |
| 6098 | if (pce_dev->coh_vmem) |
| 6099 | dma_free_coherent(pce_dev->pdev, pce_dev->memsize, |
| 6100 | pce_dev->coh_vmem, pce_dev->coh_pmem); |
| 6101 | err_iobase: |
| 6102 | if (pce_dev->iobase) |
| 6103 | iounmap(pce_dev->iobase); |
| 6104 | err_pce_dev: |
| 6105 | mutex_unlock(&qce_iomap_mutex); |
| 6106 | kfree(pce_dev); |
| 6107 | return NULL; |
| 6108 | } |
| 6109 | EXPORT_SYMBOL(qce_open); |
| 6110 | |
| 6111 | /* crypto engine close function. */ |
| 6112 | int qce_close(void *handle) |
| 6113 | { |
| 6114 | struct qce_device *pce_dev = (struct qce_device *) handle; |
| 6115 | |
| 6116 | if (handle == NULL) |
| 6117 | return -ENODEV; |
| 6118 | |
| 6119 | mutex_lock(&qce_iomap_mutex); |
| 6120 | qce_enable_clk(pce_dev); |
| 6121 | qce_sps_exit(pce_dev); |
| 6122 | |
| 6123 | if (pce_dev->iobase) |
| 6124 | iounmap(pce_dev->iobase); |
| 6125 | if (pce_dev->coh_vmem) |
| 6126 | dma_free_coherent(pce_dev->pdev, pce_dev->memsize, |
| 6127 | pce_dev->coh_vmem, pce_dev->coh_pmem); |
| 6128 | kfree(pce_dev->dummyreq_in_buf); |
| 6129 | kfree(pce_dev->iovec_vmem); |
| 6130 | |
AnilKumar Chimata | e9960e0 | 2017-07-26 18:31:37 +0530 | [diff] [blame] | 6131 | if (pce_dev->bypass_s1_smmu) |
| 6132 | qce_iommu_release_iomapping(pce_dev); |
| 6133 | |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6134 | qce_disable_clk(pce_dev); |
| 6135 | __qce_deinit_clk(pce_dev); |
| 6136 | mutex_unlock(&qce_iomap_mutex); |
| 6137 | kfree(handle); |
| 6138 | |
| 6139 | return 0; |
| 6140 | } |
| 6141 | EXPORT_SYMBOL(qce_close); |
| 6142 | |
| 6143 | #define OTA_SUPPORT_MASK (1 << CRYPTO_ENCR_SNOW3G_SEL |\ |
| 6144 | 1 << CRYPTO_ENCR_KASUMI_SEL |\ |
| 6145 | 1 << CRYPTO_AUTH_SNOW3G_SEL |\ |
| 6146 | 1 << CRYPTO_AUTH_KASUMI_SEL) |
| 6147 | |
| 6148 | int qce_hw_support(void *handle, struct ce_hw_support *ce_support) |
| 6149 | { |
| 6150 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 6151 | |
| 6152 | if (ce_support == NULL) |
| 6153 | return -EINVAL; |
| 6154 | |
| 6155 | ce_support->sha1_hmac_20 = false; |
| 6156 | ce_support->sha1_hmac = false; |
| 6157 | ce_support->sha256_hmac = false; |
| 6158 | ce_support->sha_hmac = true; |
| 6159 | ce_support->cmac = true; |
| 6160 | ce_support->aes_key_192 = false; |
| 6161 | ce_support->aes_xts = true; |
| 6162 | if ((pce_dev->engines_avail & OTA_SUPPORT_MASK) == OTA_SUPPORT_MASK) |
| 6163 | ce_support->ota = true; |
| 6164 | else |
| 6165 | ce_support->ota = false; |
| 6166 | ce_support->bam = true; |
| 6167 | ce_support->is_shared = (pce_dev->is_shared == 1) ? true : false; |
| 6168 | ce_support->hw_key = pce_dev->support_hw_key; |
| 6169 | ce_support->aes_ccm = true; |
| 6170 | ce_support->clk_mgmt_sus_res = pce_dev->support_clk_mgmt_sus_res; |
AnilKumar Chimata | 70cf177 | 2017-05-02 18:39:39 -0700 | [diff] [blame] | 6171 | ce_support->req_bw_before_clk = pce_dev->request_bw_before_clk; |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6172 | if (pce_dev->ce_bam_info.minor_version) |
| 6173 | ce_support->aligned_only = false; |
| 6174 | else |
| 6175 | ce_support->aligned_only = true; |
| 6176 | |
| 6177 | ce_support->use_sw_aes_cbc_ecb_ctr_algo = |
| 6178 | pce_dev->use_sw_aes_cbc_ecb_ctr_algo; |
| 6179 | ce_support->use_sw_aead_algo = |
| 6180 | pce_dev->use_sw_aead_algo; |
| 6181 | ce_support->use_sw_aes_xts_algo = |
| 6182 | pce_dev->use_sw_aes_xts_algo; |
| 6183 | ce_support->use_sw_ahash_algo = |
| 6184 | pce_dev->use_sw_ahash_algo; |
| 6185 | ce_support->use_sw_hmac_algo = |
| 6186 | pce_dev->use_sw_hmac_algo; |
| 6187 | ce_support->use_sw_aes_ccm_algo = |
| 6188 | pce_dev->use_sw_aes_ccm_algo; |
| 6189 | ce_support->ce_device = pce_dev->ce_bam_info.ce_device; |
| 6190 | ce_support->ce_hw_instance = pce_dev->ce_bam_info.ce_hw_instance; |
| 6191 | if (pce_dev->no_get_around) |
| 6192 | ce_support->max_request = MAX_QCE_BAM_REQ; |
| 6193 | else |
| 6194 | ce_support->max_request = 1; |
| 6195 | return 0; |
| 6196 | } |
| 6197 | EXPORT_SYMBOL(qce_hw_support); |
| 6198 | |
| 6199 | void qce_dump_req(void *handle) |
| 6200 | { |
| 6201 | int i; |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 6202 | bool req_in_use; |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6203 | struct qce_device *pce_dev = (struct qce_device *)handle; |
| 6204 | |
| 6205 | for (i = 0; i < MAX_QCE_BAM_REQ; i++) { |
Brahmaji K | ed6a1d4 | 2017-06-27 19:27:37 +0530 | [diff] [blame] | 6206 | req_in_use = atomic_read(&pce_dev->ce_request_info[i].in_use); |
| 6207 | pr_info("qce_dump_req %d %d\n", i, req_in_use); |
| 6208 | if (req_in_use == true) |
AnilKumar Chimata | e78789a | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6209 | _qce_dump_descr_fifos(pce_dev, i); |
| 6210 | } |
| 6211 | } |
| 6212 | EXPORT_SYMBOL(qce_dump_req); |
| 6213 | |
| 6214 | MODULE_LICENSE("GPL v2"); |
| 6215 | MODULE_DESCRIPTION("Crypto Engine driver"); |