drivers/net/wireless/intel/iwlwifi/iwl-drv.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2005-2014, 2018-2023 Intel Corporation
   4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
   5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
   6  */
   7 #include <linux/completion.h>
   8 #include <linux/dma-mapping.h>
   9 #include <linux/firmware.h>
  10 #include <linux/module.h>
  11 #include <linux/vmalloc.h>
  12
  13 #include "iwl-drv.h"
  14 #include "iwl-csr.h"
  15 #include "iwl-debug.h"
  16 #include "iwl-trans.h"
  17 #include "iwl-op-mode.h"
  18 #include "iwl-agn-hw.h"
  19 #include "fw/img.h"
  20 #include "iwl-dbg-tlv.h"
  21 #include "iwl-config.h"
  22 #include "iwl-modparams.h"
  23 #include "fw/api/alive.h"
  24 #include "fw/api/mac.h"
  25
  26 /******************************************************************************
  27  *
  28  * module boiler plate
  29  *
  30  ******************************************************************************/
  31
  32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  34 MODULE_LICENSE("GPL");
  35
  36 #ifdef CONFIG_IWLWIFI_DEBUGFS
  37 static struct dentry *iwl_dbgfs_root;
  38 #endif
  39
  40 /**
  41  * struct iwl_drv - drv common data
  42  * @list: list of drv structures using this opmode
  43  * @fw: the iwl_fw structure
  44  * @op_mode: the running op_mode
  45  * @trans: transport layer
  46  * @dev: for debug prints only
  47  * @fw_index: firmware revision to try loading
  48  * @firmware_name: composite filename of ucode file to load
  49  * @request_firmware_complete: the firmware has been obtained from user space
  50  * @dbgfs_drv: debugfs root directory entry
  51  * @dbgfs_trans: debugfs transport directory entry
  52  * @dbgfs_op_mode: debugfs op_mode directory entry
  53  */
  54 struct iwl_drv {
  55         struct list_head list;
  56         struct iwl_fw fw;
  57
  58         struct iwl_op_mode *op_mode;
  59         struct iwl_trans *trans;
  60         struct device *dev;
  61
  62         int fw_index;                   /* firmware we're trying to load */
  63         char firmware_name[64];         /* name of firmware file to load */
  64
  65         struct completion request_firmware_complete;
  66
  67 #ifdef CONFIG_IWLWIFI_DEBUGFS
  68         struct dentry *dbgfs_drv;
  69         struct dentry *dbgfs_trans;
  70         struct dentry *dbgfs_op_mode;
  71 #endif
  72 };
  73
  74 enum {
  75         DVM_OP_MODE,
  76         MVM_OP_MODE,
  77 };
  78
  79 /* Protects the table contents, i.e. the ops pointer & drv list */
  80 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
  81 static struct iwlwifi_opmode_table {
  82         const char *name;                       /* name: iwldvm, iwlmvm, etc */
  83         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
  84         struct list_head drv;           /* list of devices using this op_mode */
  85 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
  86         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
  87         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
  88 };
  89
  90 #define IWL_DEFAULT_SCAN_CHANNELS 40
  91
  92 /*
  93  * struct fw_sec: Just for the image parsing process.
  94  * For the fw storage we are using struct fw_desc.
  95  */
  96 struct fw_sec {
  97         const void *data;               /* the sec data */
  98         size_t size;                    /* section size */
  99         u32 offset;                     /* offset of writing in the device */
 100 };
 101
 102 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 103 {
 104         vfree(desc->data);
 105         desc->data = NULL;
 106         desc->len = 0;
 107 }
 108
 109 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 110 {
 111         int i;
 112         for (i = 0; i < img->num_sec; i++)
 113                 iwl_free_fw_desc(drv, &img->sec[i]);
 114         kfree(img->sec);
 115 }
 116
 117 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 118 {
 119         int i;
 120
 121         kfree(drv->fw.dbg.dest_tlv);
 122         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
 123                 kfree(drv->fw.dbg.conf_tlv[i]);
 124         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
 125                 kfree(drv->fw.dbg.trigger_tlv[i]);
 126         kfree(drv->fw.dbg.mem_tlv);
 127         kfree(drv->fw.iml);
 128         kfree(drv->fw.ucode_capa.cmd_versions);
 129         kfree(drv->fw.phy_integration_ver);
 130         kfree(drv->trans->dbg.pc_data);
 131
 132         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 133                 iwl_free_fw_img(drv, drv->fw.img + i);
 134
 135         /* clear the data for the aborted load case */
 136         memset(&drv->fw, 0, sizeof(drv->fw));
 137 }
 138
 139 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 140                              struct fw_sec *sec)
 141 {
 142         void *data;
 143
 144         desc->data = NULL;
 145
 146         if (!sec || !sec->size)
 147                 return -EINVAL;
 148
 149         data = vmalloc(sec->size);
 150         if (!data)
 151                 return -ENOMEM;
 152
 153         desc->len = sec->size;
 154         desc->offset = sec->offset;
 155         memcpy(data, sec->data, desc->len);
 156         desc->data = data;
 157
 158         return 0;
 159 }
 160
 161 static inline char iwl_drv_get_step(int step)
 162 {
 163         if (step == SILICON_Z_STEP)
 164                 return 'z';
 165         if (step == SILICON_TC_STEP)
 166                 return 'a';
 167         return 'a' + step;
 168 }
 169
 170 const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
 171 {
 172         char mac_step, rf_step;
 173         const char *rf, *cdb;
 174
 175         if (trans->cfg->fw_name_pre)
 176                 return trans->cfg->fw_name_pre;
 177
 178         if (WARN_ON(!trans->cfg->fw_name_mac))
 179                 return "unconfigured";
 180
 181         mac_step = iwl_drv_get_step(trans->hw_rev_step);
 182
 183         rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
 184
 185         switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
 186         case IWL_CFG_RF_TYPE_HR1:
 187         case IWL_CFG_RF_TYPE_HR2:
 188                 rf = "hr";
 189                 break;
 190         case IWL_CFG_RF_TYPE_GF:
 191                 rf = "gf";
 192                 break;
 193         case IWL_CFG_RF_TYPE_MR:
 194                 rf = "mr";
 195                 break;
 196         case IWL_CFG_RF_TYPE_MS:
 197                 rf = "ms";
 198                 break;
 199         case IWL_CFG_RF_TYPE_FM:
 200                 rf = "fm";
 201                 break;
 202         case IWL_CFG_RF_TYPE_WH:
 203                 if (SILICON_Z_STEP ==
 204                     CSR_HW_RFID_STEP(trans->hw_rf_id)) {
 205                         rf = "whtc";
 206                         rf_step = 'a';
 207                 } else {
 208                         rf = "wh";
 209                 }
 210                 break;
 211         default:
 212                 return "unknown-rf";
 213         }
 214
 215         cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
 216
 217         scnprintf(buf, FW_NAME_PRE_BUFSIZE,
 218                   "iwlwifi-%s-%c0-%s%s-%c0",
 219                   trans->cfg->fw_name_mac, mac_step,
 220                   rf, cdb, rf_step);
 221
 222         return buf;
 223 }
 224 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
 225
 226 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 227                                 void *context);
 228
 229 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 230 {
 231         const struct iwl_cfg *cfg = drv->trans->cfg;
 232         char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
 233         const char *fw_name_pre;
 234
 235         if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 236             (drv->trans->hw_rev_step != SILICON_B_STEP &&
 237              drv->trans->hw_rev_step != SILICON_C_STEP)) {
 238                 IWL_ERR(drv,
 239                         "Only HW steps B and C are currently supported (0x%0x)\n",
 240                         drv->trans->hw_rev);
 241                 return -EINVAL;
 242         }
 243
 244         fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
 245
 246         if (first)
 247                 drv->fw_index = cfg->ucode_api_max;
 248         else
 249                 drv->fw_index--;
 250
 251         if (drv->fw_index < cfg->ucode_api_min) {
 252                 IWL_ERR(drv, "no suitable firmware found!\n");
 253
 254                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 255                         IWL_ERR(drv, "%s-%d is required\n", fw_name_pre,
 256                                 cfg->ucode_api_max);
 257                 } else {
 258                         IWL_ERR(drv, "minimum version required: %s-%d\n",
 259                                 fw_name_pre, cfg->ucode_api_min);
 260                         IWL_ERR(drv, "maximum version supported: %s-%d\n",
 261                                 fw_name_pre, cfg->ucode_api_max);
 262                 }
 263
 264                 IWL_ERR(drv,
 265                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 266                 return -ENOENT;
 267         }
 268
 269         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s-%d.ucode",
 270                  fw_name_pre, drv->fw_index);
 271
 272         IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
 273                           drv->firmware_name);
 274
 275         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 276                                        drv->trans->dev,
 277                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 278 }
 279
 280 struct fw_img_parsing {
 281         struct fw_sec *sec;
 282         int sec_counter;
 283 };
 284
 285 /*
 286  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 287  */
 288 struct fw_sec_parsing {
 289         __le32 offset;
 290         const u8 data[];
 291 } __packed;
 292
 293 /**
 294  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 295  *
 296  * @ucode_type: the uCode to which the following default calib relates.
 297  * @calib: default calibrations.
 298  */
 299 struct iwl_tlv_calib_data {
 300         __le32 ucode_type;
 301         struct iwl_tlv_calib_ctrl calib;
 302 } __packed;
 303
 304 struct iwl_firmware_pieces {
 305         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 306
 307         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 308         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 309
 310         /* FW debug data parsed for driver usage */
 311         bool dbg_dest_tlv_init;
 312         const u8 *dbg_dest_ver;
 313         union {
 314                 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 315                 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 316         };
 317         const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 318         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 319         const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 320         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 321         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 322         size_t n_mem_tlv;
 323 };
 324
 325 /*
 326  * These functions are just to extract uCode section data from the pieces
 327  * structure.
 328  */
 329 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 330                               enum iwl_ucode_type type,
 331                               int  sec)
 332 {
 333         return &pieces->img[type].sec[sec];
 334 }
 335
 336 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 337                            enum iwl_ucode_type type,
 338                            int sec)
 339 {
 340         struct fw_img_parsing *img = &pieces->img[type];
 341         struct fw_sec *sec_memory;
 342         int size = sec + 1;
 343         size_t alloc_size = sizeof(*img->sec) * size;
 344
 345         if (img->sec && img->sec_counter >= size)
 346                 return;
 347
 348         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 349         if (!sec_memory)
 350                 return;
 351
 352         img->sec = sec_memory;
 353         img->sec_counter = size;
 354 }
 355
 356 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 357                          enum iwl_ucode_type type,
 358                          int sec,
 359                          const void *data)
 360 {
 361         alloc_sec_data(pieces, type, sec);
 362
 363         pieces->img[type].sec[sec].data = data;
 364 }
 365
 366 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 367                          enum iwl_ucode_type type,
 368                          int sec,
 369                          size_t size)
 370 {
 371         alloc_sec_data(pieces, type, sec);
 372
 373         pieces->img[type].sec[sec].size = size;
 374 }
 375
 376 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 377                            enum iwl_ucode_type type,
 378                            int sec)
 379 {
 380         return pieces->img[type].sec[sec].size;
 381 }
 382
 383 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 384                            enum iwl_ucode_type type,
 385                            int sec,
 386                            u32 offset)
 387 {
 388         alloc_sec_data(pieces, type, sec);
 389
 390         pieces->img[type].sec[sec].offset = offset;
 391 }
 392
 393 /*
 394  * Gets uCode section from tlv.
 395  */
 396 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 397                                const void *data, enum iwl_ucode_type type,
 398                                int size)
 399 {
 400         struct fw_img_parsing *img;
 401         struct fw_sec *sec;
 402         const struct fw_sec_parsing *sec_parse;
 403         size_t alloc_size;
 404
 405         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 406                 return -1;
 407
 408         sec_parse = (const struct fw_sec_parsing *)data;
 409
 410         img = &pieces->img[type];
 411
 412         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 413         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 414         if (!sec)
 415                 return -ENOMEM;
 416         img->sec = sec;
 417
 418         sec = &img->sec[img->sec_counter];
 419
 420         sec->offset = le32_to_cpu(sec_parse->offset);
 421         sec->data = sec_parse->data;
 422         sec->size = size - sizeof(sec_parse->offset);
 423
 424         ++img->sec_counter;
 425
 426         return 0;
 427 }
 428
 429 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 430 {
 431         const struct iwl_tlv_calib_data *def_calib =
 432                                         (const struct iwl_tlv_calib_data *)data;
 433         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 434         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 435                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 436                         ucode_type);
 437                 return -EINVAL;
 438         }
 439         drv->fw.default_calib[ucode_type].flow_trigger =
 440                 def_calib->calib.flow_trigger;
 441         drv->fw.default_calib[ucode_type].event_trigger =
 442                 def_calib->calib.event_trigger;
 443
 444         return 0;
 445 }
 446
 447 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 448                                     struct iwl_ucode_capabilities *capa)
 449 {
 450         const struct iwl_ucode_api *ucode_api = (const void *)data;
 451         u32 api_index = le32_to_cpu(ucode_api->api_index);
 452         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 453         int i;
 454
 455         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 456                 IWL_WARN(drv,
 457                          "api flags index %d larger than supported by driver\n",
 458                          api_index);
 459                 return;
 460         }
 461
 462         for (i = 0; i < 32; i++) {
 463                 if (api_flags & BIT(i))
 464                         __set_bit(i + 32 * api_index, capa->_api);
 465         }
 466 }
 467
 468 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 469                                        struct iwl_ucode_capabilities *capa)
 470 {
 471         const struct iwl_ucode_capa *ucode_capa = (const void *)data;
 472         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 473         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 474         int i;
 475
 476         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 477                 IWL_WARN(drv,
 478                          "capa flags index %d larger than supported by driver\n",
 479                          api_index);
 480                 return;
 481         }
 482
 483         for (i = 0; i < 32; i++) {
 484                 if (api_flags & BIT(i))
 485                         __set_bit(i + 32 * api_index, capa->_capa);
 486         }
 487 }
 488
 489 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
 490 {
 491         const char *name = drv->firmware_name;
 492
 493         if (strncmp(name, "iwlwifi-", 8) == 0)
 494                 name += 8;
 495
 496         return name;
 497 }
 498
 499 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 500                                     const struct firmware *ucode_raw,
 501                                     struct iwl_firmware_pieces *pieces)
 502 {
 503         const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
 504         u32 api_ver, hdr_size, build;
 505         char buildstr[25];
 506         const u8 *src;
 507
 508         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 509         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 510
 511         switch (api_ver) {
 512         default:
 513                 hdr_size = 28;
 514                 if (ucode_raw->size < hdr_size) {
 515                         IWL_ERR(drv, "File size too small!\n");
 516                         return -EINVAL;
 517                 }
 518                 build = le32_to_cpu(ucode->u.v2.build);
 519                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 520                              le32_to_cpu(ucode->u.v2.inst_size));
 521                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 522                              le32_to_cpu(ucode->u.v2.data_size));
 523                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 524                              le32_to_cpu(ucode->u.v2.init_size));
 525                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 526                              le32_to_cpu(ucode->u.v2.init_data_size));
 527                 src = ucode->u.v2.data;
 528                 break;
 529         case 0:
 530         case 1:
 531         case 2:
 532                 hdr_size = 24;
 533                 if (ucode_raw->size < hdr_size) {
 534                         IWL_ERR(drv, "File size too small!\n");
 535                         return -EINVAL;
 536                 }
 537                 build = 0;
 538                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 539                              le32_to_cpu(ucode->u.v1.inst_size));
 540                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 541                              le32_to_cpu(ucode->u.v1.data_size));
 542                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 543                              le32_to_cpu(ucode->u.v1.init_size));
 544                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 545                              le32_to_cpu(ucode->u.v1.init_data_size));
 546                 src = ucode->u.v1.data;
 547                 break;
 548         }
 549
 550         if (build)
 551                 sprintf(buildstr, " build %u", build);
 552         else
 553                 buildstr[0] = '\0';
 554
 555         snprintf(drv->fw.fw_version,
 556                  sizeof(drv->fw.fw_version),
 557                  "%u.%u.%u.%u%s %s",
 558                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 559                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 560                  IWL_UCODE_API(drv->fw.ucode_ver),
 561                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 562                  buildstr, iwl_reduced_fw_name(drv));
 563
 564         /* Verify size of file vs. image size info in file's header */
 565
 566         if (ucode_raw->size != hdr_size +
 567             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 568             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 569             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 570             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 571
 572                 IWL_ERR(drv,
 573                         "uCode file size %d does not match expected size\n",
 574                         (int)ucode_raw->size);
 575                 return -EINVAL;
 576         }
 577
 578
 579         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 580         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 581         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 582                        IWLAGN_RTC_INST_LOWER_BOUND);
 583         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 584         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 585         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 586                        IWLAGN_RTC_DATA_LOWER_BOUND);
 587         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 588         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 589         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 590                        IWLAGN_RTC_INST_LOWER_BOUND);
 591         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 592         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 593         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 594                        IWLAGN_RTC_DATA_LOWER_BOUND);
 595         return 0;
 596 }
 597
 598 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
 599                                      enum iwl_ucode_tlv_type tlv_type,
 600                                      const void *tlv_data, u32 tlv_len)
 601 {
 602         const struct iwl_fw_dump_exclude *fw = tlv_data;
 603         struct iwl_dump_exclude *excl;
 604
 605         if (tlv_len < sizeof(*fw))
 606                 return;
 607
 608         if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
 609                 excl = &drv->fw.dump_excl[0];
 610
 611                 /* second time we find this, it's for WoWLAN */
 612                 if (excl->addr)
 613                         excl = &drv->fw.dump_excl_wowlan[0];
 614         } else if (fw_has_capa(&drv->fw.ucode_capa,
 615                                IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
 616                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
 617                 excl = &drv->fw.dump_excl[0];
 618         } else {
 619                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
 620                 excl = &drv->fw.dump_excl_wowlan[0];
 621         }
 622
 623         if (excl->addr)
 624                 excl++;
 625
 626         if (excl->addr) {
 627                 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
 628                 return;
 629         }
 630
 631         excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
 632         excl->size = le32_to_cpu(fw->size);
 633 }
 634
 635 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
 636                                             const struct iwl_ucode_tlv *tlv)
 637 {
 638         const struct iwl_fw_ini_region_tlv *region;
 639         u32 length = le32_to_cpu(tlv->length);
 640         u32 addr;
 641
 642         if (length < offsetof(typeof(*region), special_mem) +
 643                      sizeof(region->special_mem))
 644                 return;
 645
 646         region = (const void *)tlv->data;
 647         addr = le32_to_cpu(region->special_mem.base_addr);
 648         addr += le32_to_cpu(region->special_mem.offset);
 649         addr &= ~FW_ADDR_CACHE_CONTROL;
 650
 651         if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
 652                 return;
 653
 654         switch (region->sub_type) {
 655         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
 656                 drv->trans->dbg.umac_error_event_table = addr;
 657                 drv->trans->dbg.error_event_table_tlv_status |=
 658                         IWL_ERROR_EVENT_TABLE_UMAC;
 659                 break;
 660         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
 661                 drv->trans->dbg.lmac_error_event_table[0] = addr;
 662                 drv->trans->dbg.error_event_table_tlv_status |=
 663                         IWL_ERROR_EVENT_TABLE_LMAC1;
 664                 break;
 665         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
 666                 drv->trans->dbg.lmac_error_event_table[1] = addr;
 667                 drv->trans->dbg.error_event_table_tlv_status |=
 668                         IWL_ERROR_EVENT_TABLE_LMAC2;
 669                 break;
 670         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
 671                 drv->trans->dbg.tcm_error_event_table[0] = addr;
 672                 drv->trans->dbg.error_event_table_tlv_status |=
 673                         IWL_ERROR_EVENT_TABLE_TCM1;
 674                 break;
 675         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
 676                 drv->trans->dbg.tcm_error_event_table[1] = addr;
 677                 drv->trans->dbg.error_event_table_tlv_status |=
 678                         IWL_ERROR_EVENT_TABLE_TCM2;
 679                 break;
 680         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
 681                 drv->trans->dbg.rcm_error_event_table[0] = addr;
 682                 drv->trans->dbg.error_event_table_tlv_status |=
 683                         IWL_ERROR_EVENT_TABLE_RCM1;
 684                 break;
 685         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
 686                 drv->trans->dbg.rcm_error_event_table[1] = addr;
 687                 drv->trans->dbg.error_event_table_tlv_status |=
 688                         IWL_ERROR_EVENT_TABLE_RCM2;
 689                 break;
 690         default:
 691                 break;
 692         }
 693 }
 694
 695 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 696                                 const struct firmware *ucode_raw,
 697                                 struct iwl_firmware_pieces *pieces,
 698                                 struct iwl_ucode_capabilities *capa,
 699                                 bool *usniffer_images)
 700 {
 701         const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
 702         const struct iwl_ucode_tlv *tlv;
 703         size_t len = ucode_raw->size;
 704         const u8 *data;
 705         u32 tlv_len;
 706         u32 usniffer_img;
 707         enum iwl_ucode_tlv_type tlv_type;
 708         const u8 *tlv_data;
 709         char buildstr[25];
 710         u32 build, paging_mem_size;
 711         int num_of_cpus;
 712         bool usniffer_req = false;
 713
 714         if (len < sizeof(*ucode)) {
 715                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 716                 return -EINVAL;
 717         }
 718
 719         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 720                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 721                         le32_to_cpu(ucode->magic));
 722                 return -EINVAL;
 723         }
 724
 725         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 726         memcpy(drv->fw.human_readable, ucode->human_readable,
 727                sizeof(drv->fw.human_readable));
 728         build = le32_to_cpu(ucode->build);
 729
 730         if (build)
 731                 sprintf(buildstr, " build %u", build);
 732         else
 733                 buildstr[0] = '\0';
 734
 735         snprintf(drv->fw.fw_version,
 736                  sizeof(drv->fw.fw_version),
 737                  "%u.%u.%u.%u%s %s",
 738                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 739                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 740                  IWL_UCODE_API(drv->fw.ucode_ver),
 741                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 742                  buildstr, iwl_reduced_fw_name(drv));
 743
 744         data = ucode->data;
 745
 746         len -= sizeof(*ucode);
 747
 748         while (len >= sizeof(*tlv)) {
 749                 len -= sizeof(*tlv);
 750
 751                 tlv = (const void *)data;
 752                 tlv_len = le32_to_cpu(tlv->length);
 753                 tlv_type = le32_to_cpu(tlv->type);
 754                 tlv_data = tlv->data;
 755
 756                 if (len < tlv_len) {
 757                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 758                                 len, tlv_len);
 759                         return -EINVAL;
 760                 }
 761                 len -= ALIGN(tlv_len, 4);
 762                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 763
 764                 switch (tlv_type) {
 765                 case IWL_UCODE_TLV_INST:
 766                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 767                                      IWL_UCODE_SECTION_INST, tlv_data);
 768                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 769                                      IWL_UCODE_SECTION_INST, tlv_len);
 770                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 771                                        IWL_UCODE_SECTION_INST,
 772                                        IWLAGN_RTC_INST_LOWER_BOUND);
 773                         break;
 774                 case IWL_UCODE_TLV_DATA:
 775                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 776                                      IWL_UCODE_SECTION_DATA, tlv_data);
 777                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 778                                      IWL_UCODE_SECTION_DATA, tlv_len);
 779                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 780                                        IWL_UCODE_SECTION_DATA,
 781                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 782                         break;
 783                 case IWL_UCODE_TLV_INIT:
 784                         set_sec_data(pieces, IWL_UCODE_INIT,
 785                                      IWL_UCODE_SECTION_INST, tlv_data);
 786                         set_sec_size(pieces, IWL_UCODE_INIT,
 787                                      IWL_UCODE_SECTION_INST, tlv_len);
 788                         set_sec_offset(pieces, IWL_UCODE_INIT,
 789                                        IWL_UCODE_SECTION_INST,
 790                                        IWLAGN_RTC_INST_LOWER_BOUND);
 791                         break;
 792                 case IWL_UCODE_TLV_INIT_DATA:
 793                         set_sec_data(pieces, IWL_UCODE_INIT,
 794                                      IWL_UCODE_SECTION_DATA, tlv_data);
 795                         set_sec_size(pieces, IWL_UCODE_INIT,
 796                                      IWL_UCODE_SECTION_DATA, tlv_len);
 797                         set_sec_offset(pieces, IWL_UCODE_INIT,
 798                                        IWL_UCODE_SECTION_DATA,
 799                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 800                         break;
 801                 case IWL_UCODE_TLV_BOOT:
 802                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 803                         break;
 804                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 805                         if (tlv_len != sizeof(u32))
 806                                 goto invalid_tlv_len;
 807                         capa->max_probe_length =
 808                                         le32_to_cpup((const __le32 *)tlv_data);
 809                         break;
 810                 case IWL_UCODE_TLV_PAN:
 811                         if (tlv_len)
 812                                 goto invalid_tlv_len;
 813                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 814                         break;
 815                 case IWL_UCODE_TLV_FLAGS:
 816                         /* must be at least one u32 */
 817                         if (tlv_len < sizeof(u32))
 818                                 goto invalid_tlv_len;
 819                         /* and a proper number of u32s */
 820                         if (tlv_len % sizeof(u32))
 821                                 goto invalid_tlv_len;
 822                         /*
 823                          * This driver only reads the first u32 as
 824                          * right now no more features are defined,
 825                          * if that changes then either the driver
 826                          * will not work with the new firmware, or
 827                          * it'll not take advantage of new features.
 828                          */
 829                         capa->flags = le32_to_cpup((const __le32 *)tlv_data);
 830                         break;
 831                 case IWL_UCODE_TLV_API_CHANGES_SET:
 832                         if (tlv_len != sizeof(struct iwl_ucode_api))
 833                                 goto invalid_tlv_len;
 834                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 835                         break;
 836                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 837                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 838                                 goto invalid_tlv_len;
 839                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 840                         break;
 841                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 842                         if (tlv_len != sizeof(u32))
 843                                 goto invalid_tlv_len;
 844                         pieces->init_evtlog_ptr =
 845                                         le32_to_cpup((const __le32 *)tlv_data);
 846                         break;
 847                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 848                         if (tlv_len != sizeof(u32))
 849                                 goto invalid_tlv_len;
 850                         pieces->init_evtlog_size =
 851                                         le32_to_cpup((const __le32 *)tlv_data);
 852                         break;
 853                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 854                         if (tlv_len != sizeof(u32))
 855                                 goto invalid_tlv_len;
 856                         pieces->init_errlog_ptr =
 857                                         le32_to_cpup((const __le32 *)tlv_data);
 858                         break;
 859                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 860                         if (tlv_len != sizeof(u32))
 861                                 goto invalid_tlv_len;
 862                         pieces->inst_evtlog_ptr =
 863                                         le32_to_cpup((const __le32 *)tlv_data);
 864                         break;
 865                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 866                         if (tlv_len != sizeof(u32))
 867                                 goto invalid_tlv_len;
 868                         pieces->inst_evtlog_size =
 869                                         le32_to_cpup((const __le32 *)tlv_data);
 870                         break;
 871                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 872                         if (tlv_len != sizeof(u32))
 873                                 goto invalid_tlv_len;
 874                         pieces->inst_errlog_ptr =
 875                                         le32_to_cpup((const __le32 *)tlv_data);
 876                         break;
 877                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 878                         if (tlv_len)
 879                                 goto invalid_tlv_len;
 880                         drv->fw.enhance_sensitivity_table = true;
 881                         break;
 882                 case IWL_UCODE_TLV_WOWLAN_INST:
 883                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 884                                      IWL_UCODE_SECTION_INST, tlv_data);
 885                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 886                                      IWL_UCODE_SECTION_INST, tlv_len);
 887                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 888                                        IWL_UCODE_SECTION_INST,
 889                                        IWLAGN_RTC_INST_LOWER_BOUND);
 890                         break;
 891                 case IWL_UCODE_TLV_WOWLAN_DATA:
 892                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 893                                      IWL_UCODE_SECTION_DATA, tlv_data);
 894                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 895                                      IWL_UCODE_SECTION_DATA, tlv_len);
 896                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 897                                        IWL_UCODE_SECTION_DATA,
 898                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 899                         break;
 900                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 901                         if (tlv_len != sizeof(u32))
 902                                 goto invalid_tlv_len;
 903                         capa->standard_phy_calibration_size =
 904                                         le32_to_cpup((const __le32 *)tlv_data);
 905                         break;
 906                 case IWL_UCODE_TLV_SEC_RT:
 907                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 908                                             tlv_len);
 909                         drv->fw.type = IWL_FW_MVM;
 910                         break;
 911                 case IWL_UCODE_TLV_SEC_INIT:
 912                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 913                                             tlv_len);
 914                         drv->fw.type = IWL_FW_MVM;
 915                         break;
 916                 case IWL_UCODE_TLV_SEC_WOWLAN:
 917                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 918                                             tlv_len);
 919                         drv->fw.type = IWL_FW_MVM;
 920                         break;
 921                 case IWL_UCODE_TLV_DEF_CALIB:
 922                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 923                                 goto invalid_tlv_len;
 924                         if (iwl_set_default_calib(drv, tlv_data))
 925                                 goto tlv_error;
 926                         break;
 927                 case IWL_UCODE_TLV_PHY_SKU:
 928                         if (tlv_len != sizeof(u32))
 929                                 goto invalid_tlv_len;
 930                         drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
 931                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 932                                                 FW_PHY_CFG_TX_CHAIN) >>
 933                                                 FW_PHY_CFG_TX_CHAIN_POS;
 934                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 935                                                 FW_PHY_CFG_RX_CHAIN) >>
 936                                                 FW_PHY_CFG_RX_CHAIN_POS;
 937                         break;
 938                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 939                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 940                                             tlv_len);
 941                         drv->fw.type = IWL_FW_MVM;
 942                         break;
 943                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 944                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 945                                             tlv_len);
 946                         drv->fw.type = IWL_FW_MVM;
 947                         break;
 948                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 949                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 950                                             tlv_len);
 951                         drv->fw.type = IWL_FW_MVM;
 952                         break;
 953                 case IWL_UCODE_TLV_NUM_OF_CPU:
 954                         if (tlv_len != sizeof(u32))
 955                                 goto invalid_tlv_len;
 956                         num_of_cpus =
 957                                 le32_to_cpup((const __le32 *)tlv_data);
 958
 959                         if (num_of_cpus == 2) {
 960                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 961                                         true;
 962                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 963                                         true;
 964                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 965                                         true;
 966                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 967                                 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
 968                                 return -EINVAL;
 969                         }
 970                         break;
 971                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 972                         if (tlv_len != sizeof(u32))
 973                                 goto invalid_tlv_len;
 974                         capa->n_scan_channels =
 975                                 le32_to_cpup((const __le32 *)tlv_data);
 976                         break;
 977                 case IWL_UCODE_TLV_FW_VERSION: {
 978                         const __le32 *ptr = (const void *)tlv_data;
 979                         u32 major, minor;
 980                         u8 local_comp;
 981
 982                         if (tlv_len != sizeof(u32) * 3)
 983                                 goto invalid_tlv_len;
 984
 985                         major = le32_to_cpup(ptr++);
 986                         minor = le32_to_cpup(ptr++);
 987                         local_comp = le32_to_cpup(ptr);
 988
 989                         if (major >= 35)
 990                                 snprintf(drv->fw.fw_version,
 991                                          sizeof(drv->fw.fw_version),
 992                                         "%u.%08x.%u %s", major, minor,
 993                                         local_comp, iwl_reduced_fw_name(drv));
 994                         else
 995                                 snprintf(drv->fw.fw_version,
 996                                          sizeof(drv->fw.fw_version),
 997                                         "%u.%u.%u %s", major, minor,
 998                                         local_comp, iwl_reduced_fw_name(drv));
 999                         break;
1000                         }
1001                 case IWL_UCODE_TLV_FW_DBG_DEST: {
1002                         const struct iwl_fw_dbg_dest_tlv *dest = NULL;
1003                         const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
1004                         u8 mon_mode;
1005
1006                         pieces->dbg_dest_ver = (const u8 *)tlv_data;
1007                         if (*pieces->dbg_dest_ver == 1) {
1008                                 dest = (const void *)tlv_data;
1009                         } else if (*pieces->dbg_dest_ver == 0) {
1010                                 dest_v1 = (const void *)tlv_data;
1011                         } else {
1012                                 IWL_ERR(drv,
1013                                         "The version is %d, and it is invalid\n",
1014                                         *pieces->dbg_dest_ver);
1015                                 break;
1016                         }
1017
1018                         if (pieces->dbg_dest_tlv_init) {
1019                                 IWL_ERR(drv,
1020                                         "dbg destination ignored, already exists\n");
1021                                 break;
1022                         }
1023
1024                         pieces->dbg_dest_tlv_init = true;
1025
1026                         if (dest_v1) {
1027                                 pieces->dbg_dest_tlv_v1 = dest_v1;
1028                                 mon_mode = dest_v1->monitor_mode;
1029                         } else {
1030                                 pieces->dbg_dest_tlv = dest;
1031                                 mon_mode = dest->monitor_mode;
1032                         }
1033
1034                         IWL_INFO(drv, "Found debug destination: %s\n",
1035                                  get_fw_dbg_mode_string(mon_mode));
1036
1037                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
1038                                 tlv_len -
1039                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1040                                          reg_ops) :
1041                                 tlv_len -
1042                                 offsetof(struct iwl_fw_dbg_dest_tlv,
1043                                          reg_ops);
1044
1045                         drv->fw.dbg.n_dest_reg /=
1046                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1047
1048                         break;
1049                         }
1050                 case IWL_UCODE_TLV_FW_DBG_CONF: {
1051                         const struct iwl_fw_dbg_conf_tlv *conf =
1052                                 (const void *)tlv_data;
1053
1054                         if (!pieces->dbg_dest_tlv_init) {
1055                                 IWL_ERR(drv,
1056                                         "Ignore dbg config %d - no destination configured\n",
1057                                         conf->id);
1058                                 break;
1059                         }
1060
1061                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1062                                 IWL_ERR(drv,
1063                                         "Skip unknown configuration: %d\n",
1064                                         conf->id);
1065                                 break;
1066                         }
1067
1068                         if (pieces->dbg_conf_tlv[conf->id]) {
1069                                 IWL_ERR(drv,
1070                                         "Ignore duplicate dbg config %d\n",
1071                                         conf->id);
1072                                 break;
1073                         }
1074
1075                         if (conf->usniffer)
1076                                 usniffer_req = true;
1077
1078                         IWL_INFO(drv, "Found debug configuration: %d\n",
1079                                  conf->id);
1080
1081                         pieces->dbg_conf_tlv[conf->id] = conf;
1082                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1083                         break;
1084                         }
1085                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1086                         const struct iwl_fw_dbg_trigger_tlv *trigger =
1087                                 (const void *)tlv_data;
1088                         u32 trigger_id = le32_to_cpu(trigger->id);
1089
1090                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1091                                 IWL_ERR(drv,
1092                                         "Skip unknown trigger: %u\n",
1093                                         trigger->id);
1094                                 break;
1095                         }
1096
1097                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1098                                 IWL_ERR(drv,
1099                                         "Ignore duplicate dbg trigger %u\n",
1100                                         trigger->id);
1101                                 break;
1102                         }
1103
1104                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1105
1106                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1107                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1108                         break;
1109                         }
1110                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1111                         if (tlv_len != sizeof(u32)) {
1112                                 IWL_ERR(drv,
1113                                         "dbg lst mask size incorrect, skip\n");
1114                                 break;
1115                         }
1116
1117                         drv->fw.dbg.dump_mask =
1118                                 le32_to_cpup((const __le32 *)tlv_data);
1119                         break;
1120                         }
1121                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1122                         *usniffer_images = true;
1123                         iwl_store_ucode_sec(pieces, tlv_data,
1124                                             IWL_UCODE_REGULAR_USNIFFER,
1125                                             tlv_len);
1126                         break;
1127                 case IWL_UCODE_TLV_PAGING:
1128                         if (tlv_len != sizeof(u32))
1129                                 goto invalid_tlv_len;
1130                         paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1131
1132                         IWL_DEBUG_FW(drv,
1133                                      "Paging: paging enabled (size = %u bytes)\n",
1134                                      paging_mem_size);
1135
1136                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1137                                 IWL_ERR(drv,
1138                                         "Paging: driver supports up to %lu bytes for paging image\n",
1139                                         MAX_PAGING_IMAGE_SIZE);
1140                                 return -EINVAL;
1141                         }
1142
1143                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1144                                 IWL_ERR(drv,
1145                                         "Paging: image isn't multiple %lu\n",
1146                                         FW_PAGING_SIZE);
1147                                 return -EINVAL;
1148                         }
1149
1150                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1151                                 paging_mem_size;
1152                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1153                         drv->fw.img[usniffer_img].paging_mem_size =
1154                                 paging_mem_size;
1155                         break;
1156                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1157                         /* ignored */
1158                         break;
1159                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1160                         const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1161                                 (const void *)tlv_data;
1162                         size_t size;
1163                         struct iwl_fw_dbg_mem_seg_tlv *n;
1164
1165                         if (tlv_len != (sizeof(*dbg_mem)))
1166                                 goto invalid_tlv_len;
1167
1168                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1169                                        dbg_mem->data_type);
1170
1171                         size = sizeof(*pieces->dbg_mem_tlv) *
1172                                (pieces->n_mem_tlv + 1);
1173                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1174                         if (!n)
1175                                 return -ENOMEM;
1176                         pieces->dbg_mem_tlv = n;
1177                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1178                         pieces->n_mem_tlv++;
1179                         break;
1180                         }
1181                 case IWL_UCODE_TLV_IML: {
1182                         drv->fw.iml_len = tlv_len;
1183                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1184                         if (!drv->fw.iml)
1185                                 return -ENOMEM;
1186                         break;
1187                         }
1188                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1189                         const struct {
1190                                 __le32 buf_addr;
1191                                 __le32 buf_size;
1192                         } *recov_info = (const void *)tlv_data;
1193
1194                         if (tlv_len != sizeof(*recov_info))
1195                                 goto invalid_tlv_len;
1196                         capa->error_log_addr =
1197                                 le32_to_cpu(recov_info->buf_addr);
1198                         capa->error_log_size =
1199                                 le32_to_cpu(recov_info->buf_size);
1200                         }
1201                         break;
1202                 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1203                         const struct {
1204                                 u8 version[32];
1205                                 u8 sha1[20];
1206                         } *fseq_ver = (const void *)tlv_data;
1207
1208                         if (tlv_len != sizeof(*fseq_ver))
1209                                 goto invalid_tlv_len;
1210                         IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1211                                  fseq_ver->version);
1212                         }
1213                         break;
1214                 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1215                         if (tlv_len != sizeof(u32))
1216                                 goto invalid_tlv_len;
1217                         if (le32_to_cpup((const __le32 *)tlv_data) >
1218                             IWL_MVM_STATION_COUNT_MAX) {
1219                                 IWL_ERR(drv,
1220                                         "%d is an invalid number of station\n",
1221                                         le32_to_cpup((const __le32 *)tlv_data));
1222                                 goto tlv_error;
1223                         }
1224                         capa->num_stations =
1225                                 le32_to_cpup((const __le32 *)tlv_data);
1226                         break;
1227                 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1228                         if (tlv_len != sizeof(u32))
1229                                 goto invalid_tlv_len;
1230                         capa->num_beacons =
1231                                 le32_to_cpup((const __le32 *)tlv_data);
1232                         break;
1233                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1234                         const struct iwl_umac_debug_addrs *dbg_ptrs =
1235                                 (const void *)tlv_data;
1236
1237                         if (tlv_len != sizeof(*dbg_ptrs))
1238                                 goto invalid_tlv_len;
1239                         if (drv->trans->trans_cfg->device_family <
1240                             IWL_DEVICE_FAMILY_22000)
1241                                 break;
1242                         drv->trans->dbg.umac_error_event_table =
1243                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1244                                 ~FW_ADDR_CACHE_CONTROL;
1245                         drv->trans->dbg.error_event_table_tlv_status |=
1246                                 IWL_ERROR_EVENT_TABLE_UMAC;
1247                         break;
1248                         }
1249                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1250                         const struct iwl_lmac_debug_addrs *dbg_ptrs =
1251                                 (const void *)tlv_data;
1252
1253                         if (tlv_len != sizeof(*dbg_ptrs))
1254                                 goto invalid_tlv_len;
1255                         if (drv->trans->trans_cfg->device_family <
1256                             IWL_DEVICE_FAMILY_22000)
1257                                 break;
1258                         drv->trans->dbg.lmac_error_event_table[0] =
1259                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1260                                 ~FW_ADDR_CACHE_CONTROL;
1261                         drv->trans->dbg.error_event_table_tlv_status |=
1262                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1263                         break;
1264                         }
1265                 case IWL_UCODE_TLV_TYPE_REGIONS:
1266                         iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1267                         fallthrough;
1268                 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1269                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1270                 case IWL_UCODE_TLV_TYPE_HCMD:
1271                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1272                 case IWL_UCODE_TLV_TYPE_CONF_SET:
1273                         if (iwlwifi_mod_params.enable_ini)
1274                                 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1275                         break;
1276                 case IWL_UCODE_TLV_CMD_VERSIONS:
1277                         if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1278                                 IWL_ERR(drv,
1279                                         "Invalid length for command versions: %u\n",
1280                                         tlv_len);
1281                                 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1282                                 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1283                         }
1284                         if (WARN_ON(capa->cmd_versions))
1285                                 return -EINVAL;
1286                         capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1287                                                      GFP_KERNEL);
1288                         if (!capa->cmd_versions)
1289                                 return -ENOMEM;
1290                         capa->n_cmd_versions =
1291                                 tlv_len / sizeof(struct iwl_fw_cmd_version);
1292                         break;
1293                 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1294                         if (drv->fw.phy_integration_ver) {
1295                                 IWL_ERR(drv,
1296                                         "phy integration str ignored, already exists\n");
1297                                 break;
1298                         }
1299
1300                         drv->fw.phy_integration_ver =
1301                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1302                         if (!drv->fw.phy_integration_ver)
1303                                 return -ENOMEM;
1304                         drv->fw.phy_integration_ver_len = tlv_len;
1305                         break;
1306                 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1307                 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1308                         iwl_drv_set_dump_exclude(drv, tlv_type,
1309                                                  tlv_data, tlv_len);
1310                         break;
1311                 case IWL_UCODE_TLV_CURRENT_PC:
1312                         if (tlv_len < sizeof(struct iwl_pc_data))
1313                                 goto invalid_tlv_len;
1314                         drv->trans->dbg.pc_data =
1315                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1316                         if (!drv->trans->dbg.pc_data)
1317                                 return -ENOMEM;
1318                         drv->trans->dbg.num_pc =
1319                                 tlv_len / sizeof(struct iwl_pc_data);
1320                         break;
1321                 default:
1322                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1323                         break;
1324                 }
1325         }
1326
1327         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1328             usniffer_req && !*usniffer_images) {
1329                 IWL_ERR(drv,
1330                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1331                 return -EINVAL;
1332         }
1333
1334         if (len) {
1335                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1336                 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1337                 return -EINVAL;
1338         }
1339
1340         return 0;
1341
1342  invalid_tlv_len:
1343         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1344  tlv_error:
1345         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1346
1347         return -EINVAL;
1348 }
1349
1350 static int iwl_alloc_ucode(struct iwl_drv *drv,
1351                            struct iwl_firmware_pieces *pieces,
1352                            enum iwl_ucode_type type)
1353 {
1354         int i;
1355         struct fw_desc *sec;
1356
1357         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1358         if (!sec)
1359                 return -ENOMEM;
1360         drv->fw.img[type].sec = sec;
1361         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1362
1363         for (i = 0; i < pieces->img[type].sec_counter; i++)
1364                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1365                         return -ENOMEM;
1366
1367         return 0;
1368 }
1369
1370 static int validate_sec_sizes(struct iwl_drv *drv,
1371                               struct iwl_firmware_pieces *pieces,
1372                               const struct iwl_cfg *cfg)
1373 {
1374         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1375                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1376                              IWL_UCODE_SECTION_INST));
1377         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1378                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1379                              IWL_UCODE_SECTION_DATA));
1380         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1381                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1382         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1383                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1384
1385         /* Verify that uCode images will fit in card's SRAM. */
1386         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1387             cfg->max_inst_size) {
1388                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1389                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1390                                      IWL_UCODE_SECTION_INST));
1391                 return -1;
1392         }
1393
1394         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1395             cfg->max_data_size) {
1396                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1397                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1398                                      IWL_UCODE_SECTION_DATA));
1399                 return -1;
1400         }
1401
1402         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1403              cfg->max_inst_size) {
1404                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1405                         get_sec_size(pieces, IWL_UCODE_INIT,
1406                                      IWL_UCODE_SECTION_INST));
1407                 return -1;
1408         }
1409
1410         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1411             cfg->max_data_size) {
1412                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1413                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1414                                      IWL_UCODE_SECTION_DATA));
1415                 return -1;
1416         }
1417         return 0;
1418 }
1419
1420 static struct iwl_op_mode *
1421 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1422 {
1423         const struct iwl_op_mode_ops *ops = op->ops;
1424         struct dentry *dbgfs_dir = NULL;
1425         struct iwl_op_mode *op_mode = NULL;
1426         int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1427
1428         /* also protects start/stop from racing against each other */
1429         lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1430
1431         for (retry = 0; retry <= max_retry; retry++) {
1432
1433 #ifdef CONFIG_IWLWIFI_DEBUGFS
1434                 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1435                                                         drv->dbgfs_drv);
1436                 dbgfs_dir = drv->dbgfs_op_mode;
1437 #endif
1438
1439                 op_mode = ops->start(drv->trans, drv->trans->cfg,
1440                                      &drv->fw, dbgfs_dir);
1441
1442                 if (op_mode)
1443                         return op_mode;
1444
1445                 if (test_bit(STATUS_TRANS_DEAD, &drv->trans->status))
1446                         break;
1447
1448                 IWL_ERR(drv, "retry init count %d\n", retry);
1449
1450 #ifdef CONFIG_IWLWIFI_DEBUGFS
1451                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1452                 drv->dbgfs_op_mode = NULL;
1453 #endif
1454         }
1455
1456         return NULL;
1457 }
1458
1459 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1460 {
1461         /* also protects start/stop from racing against each other */
1462         lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1463
1464         /* op_mode can be NULL if its start failed */
1465         if (drv->op_mode) {
1466                 iwl_op_mode_stop(drv->op_mode);
1467                 drv->op_mode = NULL;
1468
1469 #ifdef CONFIG_IWLWIFI_DEBUGFS
1470                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1471                 drv->dbgfs_op_mode = NULL;
1472 #endif
1473         }
1474 }
1475
1476 /*
1477  * iwl_req_fw_callback - callback when firmware was loaded
1478  *
1479  * If loaded successfully, copies the firmware into buffers
1480  * for the card to fetch (via DMA).
1481  */
1482 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1483 {
1484         struct iwl_drv *drv = context;
1485         struct iwl_fw *fw = &drv->fw;
1486         const struct iwl_ucode_header *ucode;
1487         struct iwlwifi_opmode_table *op;
1488         int err;
1489         struct iwl_firmware_pieces *pieces;
1490         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1491         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1492         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1493         u32 api_ver;
1494         int i;
1495         bool load_module = false;
1496         bool usniffer_images = false;
1497         bool failure = true;
1498
1499         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1500         fw->ucode_capa.standard_phy_calibration_size =
1501                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1502         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1503         fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1504         fw->ucode_capa.num_beacons = 1;
1505         /* dump all fw memory areas by default */
1506         fw->dbg.dump_mask = 0xffffffff;
1507
1508         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1509         if (!pieces)
1510                 goto out_free_fw;
1511
1512         if (!ucode_raw)
1513                 goto try_again;
1514
1515         IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1516                           drv->firmware_name, ucode_raw->size);
1517
1518         /* Make sure that we got at least the API version number */
1519         if (ucode_raw->size < 4) {
1520                 IWL_ERR(drv, "File size way too small!\n");
1521                 goto try_again;
1522         }
1523
1524         /* Data from ucode file:  header followed by uCode images */
1525         ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1526
1527         if (ucode->ver)
1528                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1529         else
1530                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1531                                              &fw->ucode_capa, &usniffer_images);
1532
1533         if (err)
1534                 goto try_again;
1535
1536         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1537                 api_ver = drv->fw.ucode_ver;
1538         else
1539                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1540
1541         /*
1542          * api_ver should match the api version forming part of the
1543          * firmware filename ... but we don't check for that and only rely
1544          * on the API version read from firmware header from here on forward
1545          */
1546         if (api_ver < api_min || api_ver > api_max) {
1547                 IWL_ERR(drv,
1548                         "Driver unable to support your firmware API. "
1549                         "Driver supports v%u, firmware is v%u.\n",
1550                         api_max, api_ver);
1551                 goto try_again;
1552         }
1553
1554         /*
1555          * In mvm uCode there is no difference between data and instructions
1556          * sections.
1557          */
1558         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1559                                                          drv->trans->cfg))
1560                 goto try_again;
1561
1562         /* Allocate ucode buffers for card's bus-master loading ... */
1563
1564         /* Runtime instructions and 2 copies of data:
1565          * 1) unmodified from disk
1566          * 2) backup cache for save/restore during power-downs
1567          */
1568         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1569                 if (iwl_alloc_ucode(drv, pieces, i))
1570                         goto out_free_fw;
1571
1572         if (pieces->dbg_dest_tlv_init) {
1573                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1574                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1575                         drv->fw.dbg.n_dest_reg;
1576
1577                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1578
1579                 if (!drv->fw.dbg.dest_tlv)
1580                         goto out_free_fw;
1581
1582                 if (*pieces->dbg_dest_ver == 0) {
1583                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1584                                dbg_dest_size);
1585                 } else {
1586                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1587                                 drv->fw.dbg.dest_tlv;
1588
1589                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1590                         dest_tlv->monitor_mode =
1591                                 pieces->dbg_dest_tlv->monitor_mode;
1592                         dest_tlv->size_power =
1593                                 pieces->dbg_dest_tlv->size_power;
1594                         dest_tlv->wrap_count =
1595                                 pieces->dbg_dest_tlv->wrap_count;
1596                         dest_tlv->write_ptr_reg =
1597                                 pieces->dbg_dest_tlv->write_ptr_reg;
1598                         dest_tlv->base_shift =
1599                                 pieces->dbg_dest_tlv->base_shift;
1600                         memcpy(dest_tlv->reg_ops,
1601                                pieces->dbg_dest_tlv->reg_ops,
1602                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1603                                drv->fw.dbg.n_dest_reg);
1604
1605                         /* In version 1 of the destination tlv, which is
1606                          * relevant for internal buffer exclusively,
1607                          * the base address is part of given with the length
1608                          * of the buffer, and the size shift is give instead of
1609                          * end shift. We now store these values in base_reg,
1610                          * and end shift, and when dumping the data we'll
1611                          * manipulate it for extracting both the length and
1612                          * base address */
1613                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1614                         dest_tlv->end_shift =
1615                                 pieces->dbg_dest_tlv->size_shift;
1616                 }
1617         }
1618
1619         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1620                 if (pieces->dbg_conf_tlv[i]) {
1621                         drv->fw.dbg.conf_tlv[i] =
1622                                 kmemdup(pieces->dbg_conf_tlv[i],
1623                                         pieces->dbg_conf_tlv_len[i],
1624                                         GFP_KERNEL);
1625                         if (!drv->fw.dbg.conf_tlv[i])
1626                                 goto out_free_fw;
1627                 }
1628         }
1629
1630         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1631
1632         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1633                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1634         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1635         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1636                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1637         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1638                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1639         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1640                 sizeof(struct iwl_fw_dbg_trigger_stats);
1641         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1642                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1643         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1644                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1645         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1646                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1647         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1648                 sizeof(struct iwl_fw_dbg_trigger_ba);
1649         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1650                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1651
1652         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1653                 if (pieces->dbg_trigger_tlv[i]) {
1654                         /*
1655                          * If the trigger isn't long enough, WARN and exit.
1656                          * Someone is trying to debug something and he won't
1657                          * be able to catch the bug he is trying to chase.
1658                          * We'd better be noisy to be sure he knows what's
1659                          * going on.
1660                          */
1661                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1662                                     (trigger_tlv_sz[i] +
1663                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1664                                 goto out_free_fw;
1665                         drv->fw.dbg.trigger_tlv_len[i] =
1666                                 pieces->dbg_trigger_tlv_len[i];
1667                         drv->fw.dbg.trigger_tlv[i] =
1668                                 kmemdup(pieces->dbg_trigger_tlv[i],
1669                                         drv->fw.dbg.trigger_tlv_len[i],
1670                                         GFP_KERNEL);
1671                         if (!drv->fw.dbg.trigger_tlv[i])
1672                                 goto out_free_fw;
1673                 }
1674         }
1675
1676         /* Now that we can no longer fail, copy information */
1677
1678         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1679         pieces->dbg_mem_tlv = NULL;
1680         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1681
1682         /*
1683          * The (size - 16) / 12 formula is based on the information recorded
1684          * for each event, which is of mode 1 (including timestamp) for all
1685          * new microcodes that include this information.
1686          */
1687         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1688         if (pieces->init_evtlog_size)
1689                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1690         else
1691                 fw->init_evtlog_size =
1692                         drv->trans->trans_cfg->base_params->max_event_log_size;
1693         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1694         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1695         if (pieces->inst_evtlog_size)
1696                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1697         else
1698                 fw->inst_evtlog_size =
1699                         drv->trans->trans_cfg->base_params->max_event_log_size;
1700         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1701
1702         /*
1703          * figure out the offset of chain noise reset and gain commands
1704          * base on the size of standard phy calibration commands table size
1705          */
1706         if (fw->ucode_capa.standard_phy_calibration_size >
1707             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1708                 fw->ucode_capa.standard_phy_calibration_size =
1709                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1710
1711         /* We have our copies now, allow OS release its copies */
1712         release_firmware(ucode_raw);
1713
1714         iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1715
1716         mutex_lock(&iwlwifi_opmode_table_mtx);
1717         switch (fw->type) {
1718         case IWL_FW_DVM:
1719                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1720                 break;
1721         default:
1722                 WARN(1, "Invalid fw type %d\n", fw->type);
1723                 fallthrough;
1724         case IWL_FW_MVM:
1725                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1726                 break;
1727         }
1728
1729         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1730                  drv->fw.fw_version, op->name);
1731
1732         /* add this device to the list of devices using this op_mode */
1733         list_add_tail(&drv->list, &op->drv);
1734
1735         if (op->ops) {
1736                 drv->op_mode = _iwl_op_mode_start(drv, op);
1737
1738                 if (!drv->op_mode) {
1739                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1740                         goto out_unbind;
1741                 }
1742         } else {
1743                 load_module = true;
1744         }
1745         mutex_unlock(&iwlwifi_opmode_table_mtx);
1746
1747         complete(&drv->request_firmware_complete);
1748
1749         /*
1750          * Load the module last so we don't block anything
1751          * else from proceeding if the module fails to load
1752          * or hangs loading.
1753          */
1754         if (load_module)
1755                 request_module("%s", op->name);
1756         failure = false;
1757         goto free;
1758
1759  try_again:
1760         /* try next, if any */
1761         release_firmware(ucode_raw);
1762         if (iwl_request_firmware(drv, false))
1763                 goto out_unbind;
1764         goto free;
1765
1766  out_free_fw:
1767         release_firmware(ucode_raw);
1768  out_unbind:
1769         complete(&drv->request_firmware_complete);
1770         device_release_driver(drv->trans->dev);
1771         /* drv has just been freed by the release */
1772         failure = false;
1773  free:
1774         if (failure)
1775                 iwl_dealloc_ucode(drv);
1776
1777         if (pieces) {
1778                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1779                         kfree(pieces->img[i].sec);
1780                 kfree(pieces->dbg_mem_tlv);
1781                 kfree(pieces);
1782         }
1783 }
1784
1785 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1786 {
1787         struct iwl_drv *drv;
1788         int ret;
1789
1790         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1791         if (!drv) {
1792                 ret = -ENOMEM;
1793                 goto err;
1794         }
1795
1796         drv->trans = trans;
1797         drv->dev = trans->dev;
1798
1799         init_completion(&drv->request_firmware_complete);
1800         INIT_LIST_HEAD(&drv->list);
1801
1802 #ifdef CONFIG_IWLWIFI_DEBUGFS
1803         /* Create the device debugfs entries. */
1804         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1805                                             iwl_dbgfs_root);
1806
1807         /* Create transport layer debugfs dir */
1808         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1809 #endif
1810
1811         drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1812         if (iwlwifi_mod_params.enable_ini != ENABLE_INI) {
1813                 /* We have a non-default value in the module parameter,
1814                  * take its value
1815                  */
1816                 drv->trans->dbg.domains_bitmap &= 0xffff;
1817                 if (iwlwifi_mod_params.enable_ini != IWL_FW_INI_PRESET_DISABLE) {
1818                         if (iwlwifi_mod_params.enable_ini > ENABLE_INI) {
1819                                 IWL_ERR(trans,
1820                                         "invalid enable_ini module parameter value: max = %d, using 0 instead\n",
1821                                         ENABLE_INI);
1822                                 iwlwifi_mod_params.enable_ini = 0;
1823                         }
1824                         drv->trans->dbg.domains_bitmap =
1825                                 BIT(IWL_FW_DBG_DOMAIN_POS + iwlwifi_mod_params.enable_ini);
1826                 }
1827         }
1828
1829         ret = iwl_request_firmware(drv, true);
1830         if (ret) {
1831                 IWL_ERR(trans, "Couldn't request the fw\n");
1832                 goto err_fw;
1833         }
1834
1835         return drv;
1836
1837 err_fw:
1838 #ifdef CONFIG_IWLWIFI_DEBUGFS
1839         debugfs_remove_recursive(drv->dbgfs_drv);
1840         iwl_dbg_tlv_free(drv->trans);
1841 #endif
1842         kfree(drv);
1843 err:
1844         return ERR_PTR(ret);
1845 }
1846
1847 void iwl_drv_stop(struct iwl_drv *drv)
1848 {
1849         wait_for_completion(&drv->request_firmware_complete);
1850
1851         mutex_lock(&iwlwifi_opmode_table_mtx);
1852
1853         _iwl_op_mode_stop(drv);
1854
1855         iwl_dealloc_ucode(drv);
1856
1857         /*
1858          * List is empty (this item wasn't added)
1859          * when firmware loading failed -- in that
1860          * case we can't remove it from any list.
1861          */
1862         if (!list_empty(&drv->list))
1863                 list_del(&drv->list);
1864         mutex_unlock(&iwlwifi_opmode_table_mtx);
1865
1866 #ifdef CONFIG_IWLWIFI_DEBUGFS
1867         drv->trans->ops->debugfs_cleanup(drv->trans);
1868
1869         debugfs_remove_recursive(drv->dbgfs_drv);
1870 #endif
1871
1872         iwl_dbg_tlv_free(drv->trans);
1873
1874         kfree(drv);
1875 }
1876
1877 /* shared module parameters */
1878 struct iwl_mod_params iwlwifi_mod_params = {
1879         .fw_restart = true,
1880         .bt_coex_active = true,
1881         .power_level = IWL_POWER_INDEX_1,
1882         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1883         .enable_ini = ENABLE_INI,
1884         /* the rest are 0 by default */
1885 };
1886 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1887
1888 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1889 {
1890         int i;
1891         struct iwl_drv *drv;
1892         struct iwlwifi_opmode_table *op;
1893
1894         mutex_lock(&iwlwifi_opmode_table_mtx);
1895         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1896                 op = &iwlwifi_opmode_table[i];
1897                 if (strcmp(op->name, name))
1898                         continue;
1899                 op->ops = ops;
1900                 /* TODO: need to handle exceptional case */
1901                 list_for_each_entry(drv, &op->drv, list)
1902                         drv->op_mode = _iwl_op_mode_start(drv, op);
1903
1904                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1905                 return 0;
1906         }
1907         mutex_unlock(&iwlwifi_opmode_table_mtx);
1908         return -EIO;
1909 }
1910 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1911
1912 void iwl_opmode_deregister(const char *name)
1913 {
1914         int i;
1915         struct iwl_drv *drv;
1916
1917         mutex_lock(&iwlwifi_opmode_table_mtx);
1918         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1919                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1920                         continue;
1921                 iwlwifi_opmode_table[i].ops = NULL;
1922
1923                 /* call the stop routine for all devices */
1924                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1925                         _iwl_op_mode_stop(drv);
1926
1927                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1928                 return;
1929         }
1930         mutex_unlock(&iwlwifi_opmode_table_mtx);
1931 }
1932 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1933
1934 static int __init iwl_drv_init(void)
1935 {
1936         int i, err;
1937
1938         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1939                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1940
1941         pr_info(DRV_DESCRIPTION "\n");
1942
1943 #ifdef CONFIG_IWLWIFI_DEBUGFS
1944         /* Create the root of iwlwifi debugfs subsystem. */
1945         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1946 #endif
1947
1948         err = iwl_pci_register_driver();
1949         if (err)
1950                 goto cleanup_debugfs;
1951
1952         return 0;
1953
1954 cleanup_debugfs:
1955 #ifdef CONFIG_IWLWIFI_DEBUGFS
1956         debugfs_remove_recursive(iwl_dbgfs_root);
1957 #endif
1958         return err;
1959 }
1960 module_init(iwl_drv_init);
1961
1962 static void __exit iwl_drv_exit(void)
1963 {
1964         iwl_pci_unregister_driver();
1965
1966 #ifdef CONFIG_IWLWIFI_DEBUGFS
1967         debugfs_remove_recursive(iwl_dbgfs_root);
1968 #endif
1969 }
1970 module_exit(iwl_drv_exit);
1971
1972 #ifdef CONFIG_IWLWIFI_DEBUG
1973 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1974 MODULE_PARM_DESC(debug, "debug output mask");
1975 #endif
1976
1977 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1978 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1979 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1980 MODULE_PARM_DESC(11n_disable,
1981         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1982 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1983 MODULE_PARM_DESC(amsdu_size,
1984                  "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1985                  "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1986 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1987 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1988
1989 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1990 MODULE_PARM_DESC(nvm_file, "NVM file name");
1991
1992 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1993 MODULE_PARM_DESC(uapsd_disable,
1994                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1995
1996 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, uint, 0444);
1997 MODULE_PARM_DESC(enable_ini,
1998                  "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
1999                  "Debug INI TLV FW debug infrastructure (default: 16)");
2000
2001 /*
2002  * set bt_coex_active to true, uCode will do kill/defer
2003  * every time the priority line is asserted (BT is sending signals on the
2004  * priority line in the PCIx).
2005  * set bt_coex_active to false, uCode will ignore the BT activity and
2006  * perform the normal operation
2007  *
2008  * User might experience transmit issue on some platform due to WiFi/BT
2009  * co-exist problem. The possible behaviors are:
2010  *   Able to scan and finding all the available AP
2011  *   Not able to associate with any AP
2012  * On those platforms, WiFi communication can be restored by set
2013  * "bt_coex_active" module parameter to "false"
2014  *
2015  * default: bt_coex_active = true (BT_COEX_ENABLE)
2016  */
2017 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2018                    bool, 0444);
2019 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2020
2021 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2022 MODULE_PARM_DESC(led_mode, "0=system default, "
2023                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2024
2025 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2026 MODULE_PARM_DESC(power_save,
2027                  "enable WiFi power management (default: disable)");
2028
2029 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2030 MODULE_PARM_DESC(power_level,
2031                  "default power save level (range from 1 - 5, default: 1)");
2032
2033 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2034 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2035
2036 module_param_named(remove_when_gone,
2037                    iwlwifi_mod_params.remove_when_gone, bool,
2038                    0444);
2039 MODULE_PARM_DESC(remove_when_gone,
2040                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2041
2042 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2043                    S_IRUGO);
2044 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2045
2046 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2047 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");