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         drv->trans->dbg.pc_data = NULL;
 132
 133         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 134                 iwl_free_fw_img(drv, drv->fw.img + i);
 135
 136         /* clear the data for the aborted load case */
 137         memset(&drv->fw, 0, sizeof(drv->fw));
 138 }
 139
 140 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 141                              struct fw_sec *sec)
 142 {
 143         void *data;
 144
 145         desc->data = NULL;
 146
 147         if (!sec || !sec->size)
 148                 return -EINVAL;
 149
 150         data = vmalloc(sec->size);
 151         if (!data)
 152                 return -ENOMEM;
 153
 154         desc->len = sec->size;
 155         desc->offset = sec->offset;
 156         memcpy(data, sec->data, desc->len);
 157         desc->data = data;
 158
 159         return 0;
 160 }
 161
 162 static inline char iwl_drv_get_step(int step)
 163 {
 164         if (step == SILICON_Z_STEP)
 165                 return 'z';
 166         if (step == SILICON_TC_STEP)
 167                 return 'a';
 168         return 'a' + step;
 169 }
 170
 171 const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
 172 {
 173         char mac_step, rf_step;
 174         const char *rf, *cdb;
 175
 176         if (trans->cfg->fw_name_pre)
 177                 return trans->cfg->fw_name_pre;
 178
 179         if (WARN_ON(!trans->cfg->fw_name_mac))
 180                 return "unconfigured";
 181
 182         mac_step = iwl_drv_get_step(trans->hw_rev_step);
 183
 184         rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
 185
 186         switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
 187         case IWL_CFG_RF_TYPE_HR1:
 188         case IWL_CFG_RF_TYPE_HR2:
 189                 rf = "hr";
 190                 break;
 191         case IWL_CFG_RF_TYPE_GF:
 192                 rf = "gf";
 193                 break;
 194         case IWL_CFG_RF_TYPE_MR:
 195                 rf = "mr";
 196                 break;
 197         case IWL_CFG_RF_TYPE_MS:
 198                 rf = "ms";
 199                 break;
 200         case IWL_CFG_RF_TYPE_FM:
 201                 rf = "fm";
 202                 break;
 203         case IWL_CFG_RF_TYPE_WH:
 204                 if (SILICON_Z_STEP ==
 205                     CSR_HW_RFID_STEP(trans->hw_rf_id)) {
 206                         rf = "whtc";
 207                         rf_step = 'a';
 208                 } else {
 209                         rf = "wh";
 210                 }
 211                 break;
 212         default:
 213                 return "unknown-rf";
 214         }
 215
 216         cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
 217
 218         scnprintf(buf, FW_NAME_PRE_BUFSIZE,
 219                   "iwlwifi-%s-%c0-%s%s-%c0",
 220                   trans->cfg->fw_name_mac, mac_step,
 221                   rf, cdb, rf_step);
 222
 223         return buf;
 224 }
 225 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
 226
 227 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 228                                 void *context);
 229
 230 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 231 {
 232         const struct iwl_cfg *cfg = drv->trans->cfg;
 233         char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
 234         const char *fw_name_pre;
 235
 236         if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 237             (drv->trans->hw_rev_step != SILICON_B_STEP &&
 238              drv->trans->hw_rev_step != SILICON_C_STEP)) {
 239                 IWL_ERR(drv,
 240                         "Only HW steps B and C are currently supported (0x%0x)\n",
 241                         drv->trans->hw_rev);
 242                 return -EINVAL;
 243         }
 244
 245         fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
 246
 247         if (first)
 248                 drv->fw_index = cfg->ucode_api_max;
 249         else
 250                 drv->fw_index--;
 251
 252         if (drv->fw_index < cfg->ucode_api_min) {
 253                 IWL_ERR(drv, "no suitable firmware found!\n");
 254
 255                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 256                         IWL_ERR(drv, "%s-%d is required\n", fw_name_pre,
 257                                 cfg->ucode_api_max);
 258                 } else {
 259                         IWL_ERR(drv, "minimum version required: %s-%d\n",
 260                                 fw_name_pre, cfg->ucode_api_min);
 261                         IWL_ERR(drv, "maximum version supported: %s-%d\n",
 262                                 fw_name_pre, cfg->ucode_api_max);
 263                 }
 264
 265                 IWL_ERR(drv,
 266                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 267                 return -ENOENT;
 268         }
 269
 270         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s-%d.ucode",
 271                  fw_name_pre, drv->fw_index);
 272
 273         IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
 274                           drv->firmware_name);
 275
 276         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 277                                        drv->trans->dev,
 278                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 279 }
 280
 281 struct fw_img_parsing {
 282         struct fw_sec *sec;
 283         int sec_counter;
 284 };
 285
 286 /*
 287  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 288  */
 289 struct fw_sec_parsing {
 290         __le32 offset;
 291         const u8 data[];
 292 } __packed;
 293
 294 /**
 295  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 296  *
 297  * @ucode_type: the uCode to which the following default calib relates.
 298  * @calib: default calibrations.
 299  */
 300 struct iwl_tlv_calib_data {
 301         __le32 ucode_type;
 302         struct iwl_tlv_calib_ctrl calib;
 303 } __packed;
 304
 305 struct iwl_firmware_pieces {
 306         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 307
 308         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 309         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 310
 311         /* FW debug data parsed for driver usage */
 312         bool dbg_dest_tlv_init;
 313         const u8 *dbg_dest_ver;
 314         union {
 315                 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 316                 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 317         };
 318         const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 319         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 320         const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 321         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 322         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 323         size_t n_mem_tlv;
 324 };
 325
 326 /*
 327  * These functions are just to extract uCode section data from the pieces
 328  * structure.
 329  */
 330 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 331                               enum iwl_ucode_type type,
 332                               int  sec)
 333 {
 334         return &pieces->img[type].sec[sec];
 335 }
 336
 337 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 338                            enum iwl_ucode_type type,
 339                            int sec)
 340 {
 341         struct fw_img_parsing *img = &pieces->img[type];
 342         struct fw_sec *sec_memory;
 343         int size = sec + 1;
 344         size_t alloc_size = sizeof(*img->sec) * size;
 345
 346         if (img->sec && img->sec_counter >= size)
 347                 return;
 348
 349         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 350         if (!sec_memory)
 351                 return;
 352
 353         img->sec = sec_memory;
 354         img->sec_counter = size;
 355 }
 356
 357 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 358                          enum iwl_ucode_type type,
 359                          int sec,
 360                          const void *data)
 361 {
 362         alloc_sec_data(pieces, type, sec);
 363
 364         pieces->img[type].sec[sec].data = data;
 365 }
 366
 367 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 368                          enum iwl_ucode_type type,
 369                          int sec,
 370                          size_t size)
 371 {
 372         alloc_sec_data(pieces, type, sec);
 373
 374         pieces->img[type].sec[sec].size = size;
 375 }
 376
 377 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 378                            enum iwl_ucode_type type,
 379                            int sec)
 380 {
 381         return pieces->img[type].sec[sec].size;
 382 }
 383
 384 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 385                            enum iwl_ucode_type type,
 386                            int sec,
 387                            u32 offset)
 388 {
 389         alloc_sec_data(pieces, type, sec);
 390
 391         pieces->img[type].sec[sec].offset = offset;
 392 }
 393
 394 /*
 395  * Gets uCode section from tlv.
 396  */
 397 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 398                                const void *data, enum iwl_ucode_type type,
 399                                int size)
 400 {
 401         struct fw_img_parsing *img;
 402         struct fw_sec *sec;
 403         const struct fw_sec_parsing *sec_parse;
 404         size_t alloc_size;
 405
 406         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 407                 return -1;
 408
 409         sec_parse = (const struct fw_sec_parsing *)data;
 410
 411         img = &pieces->img[type];
 412
 413         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 414         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 415         if (!sec)
 416                 return -ENOMEM;
 417         img->sec = sec;
 418
 419         sec = &img->sec[img->sec_counter];
 420
 421         sec->offset = le32_to_cpu(sec_parse->offset);
 422         sec->data = sec_parse->data;
 423         sec->size = size - sizeof(sec_parse->offset);
 424
 425         ++img->sec_counter;
 426
 427         return 0;
 428 }
 429
 430 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 431 {
 432         const struct iwl_tlv_calib_data *def_calib =
 433                                         (const struct iwl_tlv_calib_data *)data;
 434         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 435         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 436                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 437                         ucode_type);
 438                 return -EINVAL;
 439         }
 440         drv->fw.default_calib[ucode_type].flow_trigger =
 441                 def_calib->calib.flow_trigger;
 442         drv->fw.default_calib[ucode_type].event_trigger =
 443                 def_calib->calib.event_trigger;
 444
 445         return 0;
 446 }
 447
 448 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 449                                     struct iwl_ucode_capabilities *capa)
 450 {
 451         const struct iwl_ucode_api *ucode_api = (const void *)data;
 452         u32 api_index = le32_to_cpu(ucode_api->api_index);
 453         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 454         int i;
 455
 456         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 457                 IWL_WARN(drv,
 458                          "api flags index %d larger than supported by driver\n",
 459                          api_index);
 460                 return;
 461         }
 462
 463         for (i = 0; i < 32; i++) {
 464                 if (api_flags & BIT(i))
 465                         __set_bit(i + 32 * api_index, capa->_api);
 466         }
 467 }
 468
 469 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 470                                        struct iwl_ucode_capabilities *capa)
 471 {
 472         const struct iwl_ucode_capa *ucode_capa = (const void *)data;
 473         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 474         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 475         int i;
 476
 477         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 478                 IWL_WARN(drv,
 479                          "capa flags index %d larger than supported by driver\n",
 480                          api_index);
 481                 return;
 482         }
 483
 484         for (i = 0; i < 32; i++) {
 485                 if (api_flags & BIT(i))
 486                         __set_bit(i + 32 * api_index, capa->_capa);
 487         }
 488 }
 489
 490 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
 491 {
 492         const char *name = drv->firmware_name;
 493
 494         if (strncmp(name, "iwlwifi-", 8) == 0)
 495                 name += 8;
 496
 497         return name;
 498 }
 499
 500 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 501                                     const struct firmware *ucode_raw,
 502                                     struct iwl_firmware_pieces *pieces)
 503 {
 504         const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
 505         u32 api_ver, hdr_size, build;
 506         char buildstr[25];
 507         const u8 *src;
 508
 509         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 510         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 511
 512         switch (api_ver) {
 513         default:
 514                 hdr_size = 28;
 515                 if (ucode_raw->size < hdr_size) {
 516                         IWL_ERR(drv, "File size too small!\n");
 517                         return -EINVAL;
 518                 }
 519                 build = le32_to_cpu(ucode->u.v2.build);
 520                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 521                              le32_to_cpu(ucode->u.v2.inst_size));
 522                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 523                              le32_to_cpu(ucode->u.v2.data_size));
 524                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 525                              le32_to_cpu(ucode->u.v2.init_size));
 526                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 527                              le32_to_cpu(ucode->u.v2.init_data_size));
 528                 src = ucode->u.v2.data;
 529                 break;
 530         case 0:
 531         case 1:
 532         case 2:
 533                 hdr_size = 24;
 534                 if (ucode_raw->size < hdr_size) {
 535                         IWL_ERR(drv, "File size too small!\n");
 536                         return -EINVAL;
 537                 }
 538                 build = 0;
 539                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 540                              le32_to_cpu(ucode->u.v1.inst_size));
 541                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 542                              le32_to_cpu(ucode->u.v1.data_size));
 543                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 544                              le32_to_cpu(ucode->u.v1.init_size));
 545                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 546                              le32_to_cpu(ucode->u.v1.init_data_size));
 547                 src = ucode->u.v1.data;
 548                 break;
 549         }
 550
 551         if (build)
 552                 sprintf(buildstr, " build %u", build);
 553         else
 554                 buildstr[0] = '\0';
 555
 556         snprintf(drv->fw.fw_version,
 557                  sizeof(drv->fw.fw_version),
 558                  "%u.%u.%u.%u%s %s",
 559                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 560                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 561                  IWL_UCODE_API(drv->fw.ucode_ver),
 562                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 563                  buildstr, iwl_reduced_fw_name(drv));
 564
 565         /* Verify size of file vs. image size info in file's header */
 566
 567         if (ucode_raw->size != hdr_size +
 568             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 569             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 570             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 571             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 572
 573                 IWL_ERR(drv,
 574                         "uCode file size %d does not match expected size\n",
 575                         (int)ucode_raw->size);
 576                 return -EINVAL;
 577         }
 578
 579
 580         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 581         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 582         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 583                        IWLAGN_RTC_INST_LOWER_BOUND);
 584         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 585         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 586         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 587                        IWLAGN_RTC_DATA_LOWER_BOUND);
 588         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 589         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 590         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 591                        IWLAGN_RTC_INST_LOWER_BOUND);
 592         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 593         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 594         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 595                        IWLAGN_RTC_DATA_LOWER_BOUND);
 596         return 0;
 597 }
 598
 599 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
 600                                      enum iwl_ucode_tlv_type tlv_type,
 601                                      const void *tlv_data, u32 tlv_len)
 602 {
 603         const struct iwl_fw_dump_exclude *fw = tlv_data;
 604         struct iwl_dump_exclude *excl;
 605
 606         if (tlv_len < sizeof(*fw))
 607                 return;
 608
 609         if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
 610                 excl = &drv->fw.dump_excl[0];
 611
 612                 /* second time we find this, it's for WoWLAN */
 613                 if (excl->addr)
 614                         excl = &drv->fw.dump_excl_wowlan[0];
 615         } else if (fw_has_capa(&drv->fw.ucode_capa,
 616                                IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
 617                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
 618                 excl = &drv->fw.dump_excl[0];
 619         } else {
 620                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
 621                 excl = &drv->fw.dump_excl_wowlan[0];
 622         }
 623
 624         if (excl->addr)
 625                 excl++;
 626
 627         if (excl->addr) {
 628                 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
 629                 return;
 630         }
 631
 632         excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
 633         excl->size = le32_to_cpu(fw->size);
 634 }
 635
 636 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
 637                                             const struct iwl_ucode_tlv *tlv)
 638 {
 639         const struct iwl_fw_ini_region_tlv *region;
 640         u32 length = le32_to_cpu(tlv->length);
 641         u32 addr;
 642
 643         if (length < offsetof(typeof(*region), special_mem) +
 644                      sizeof(region->special_mem))
 645                 return;
 646
 647         region = (const void *)tlv->data;
 648         addr = le32_to_cpu(region->special_mem.base_addr);
 649         addr += le32_to_cpu(region->special_mem.offset);
 650         addr &= ~FW_ADDR_CACHE_CONTROL;
 651
 652         if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
 653                 return;
 654
 655         switch (region->sub_type) {
 656         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
 657                 drv->trans->dbg.umac_error_event_table = addr;
 658                 drv->trans->dbg.error_event_table_tlv_status |=
 659                         IWL_ERROR_EVENT_TABLE_UMAC;
 660                 break;
 661         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
 662                 drv->trans->dbg.lmac_error_event_table[0] = addr;
 663                 drv->trans->dbg.error_event_table_tlv_status |=
 664                         IWL_ERROR_EVENT_TABLE_LMAC1;
 665                 break;
 666         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
 667                 drv->trans->dbg.lmac_error_event_table[1] = addr;
 668                 drv->trans->dbg.error_event_table_tlv_status |=
 669                         IWL_ERROR_EVENT_TABLE_LMAC2;
 670                 break;
 671         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
 672                 drv->trans->dbg.tcm_error_event_table[0] = addr;
 673                 drv->trans->dbg.error_event_table_tlv_status |=
 674                         IWL_ERROR_EVENT_TABLE_TCM1;
 675                 break;
 676         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
 677                 drv->trans->dbg.tcm_error_event_table[1] = addr;
 678                 drv->trans->dbg.error_event_table_tlv_status |=
 679                         IWL_ERROR_EVENT_TABLE_TCM2;
 680                 break;
 681         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
 682                 drv->trans->dbg.rcm_error_event_table[0] = addr;
 683                 drv->trans->dbg.error_event_table_tlv_status |=
 684                         IWL_ERROR_EVENT_TABLE_RCM1;
 685                 break;
 686         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
 687                 drv->trans->dbg.rcm_error_event_table[1] = addr;
 688                 drv->trans->dbg.error_event_table_tlv_status |=
 689                         IWL_ERROR_EVENT_TABLE_RCM2;
 690                 break;
 691         default:
 692                 break;
 693         }
 694 }
 695
 696 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 697                                 const struct firmware *ucode_raw,
 698                                 struct iwl_firmware_pieces *pieces,
 699                                 struct iwl_ucode_capabilities *capa,
 700                                 bool *usniffer_images)
 701 {
 702         const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
 703         const struct iwl_ucode_tlv *tlv;
 704         size_t len = ucode_raw->size;
 705         const u8 *data;
 706         u32 tlv_len;
 707         u32 usniffer_img;
 708         enum iwl_ucode_tlv_type tlv_type;
 709         const u8 *tlv_data;
 710         char buildstr[25];
 711         u32 build, paging_mem_size;
 712         int num_of_cpus;
 713         bool usniffer_req = false;
 714
 715         if (len < sizeof(*ucode)) {
 716                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 717                 return -EINVAL;
 718         }
 719
 720         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 721                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 722                         le32_to_cpu(ucode->magic));
 723                 return -EINVAL;
 724         }
 725
 726         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 727         memcpy(drv->fw.human_readable, ucode->human_readable,
 728                sizeof(drv->fw.human_readable));
 729         build = le32_to_cpu(ucode->build);
 730
 731         if (build)
 732                 sprintf(buildstr, " build %u", build);
 733         else
 734                 buildstr[0] = '\0';
 735
 736         snprintf(drv->fw.fw_version,
 737                  sizeof(drv->fw.fw_version),
 738                  "%u.%u.%u.%u%s %s",
 739                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 740                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 741                  IWL_UCODE_API(drv->fw.ucode_ver),
 742                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 743                  buildstr, iwl_reduced_fw_name(drv));
 744
 745         data = ucode->data;
 746
 747         len -= sizeof(*ucode);
 748
 749         while (len >= sizeof(*tlv)) {
 750                 len -= sizeof(*tlv);
 751
 752                 tlv = (const void *)data;
 753                 tlv_len = le32_to_cpu(tlv->length);
 754                 tlv_type = le32_to_cpu(tlv->type);
 755                 tlv_data = tlv->data;
 756
 757                 if (len < tlv_len) {
 758                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 759                                 len, tlv_len);
 760                         return -EINVAL;
 761                 }
 762                 len -= ALIGN(tlv_len, 4);
 763                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 764
 765                 switch (tlv_type) {
 766                 case IWL_UCODE_TLV_INST:
 767                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 768                                      IWL_UCODE_SECTION_INST, tlv_data);
 769                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 770                                      IWL_UCODE_SECTION_INST, tlv_len);
 771                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 772                                        IWL_UCODE_SECTION_INST,
 773                                        IWLAGN_RTC_INST_LOWER_BOUND);
 774                         break;
 775                 case IWL_UCODE_TLV_DATA:
 776                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 777                                      IWL_UCODE_SECTION_DATA, tlv_data);
 778                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 779                                      IWL_UCODE_SECTION_DATA, tlv_len);
 780                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 781                                        IWL_UCODE_SECTION_DATA,
 782                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 783                         break;
 784                 case IWL_UCODE_TLV_INIT:
 785                         set_sec_data(pieces, IWL_UCODE_INIT,
 786                                      IWL_UCODE_SECTION_INST, tlv_data);
 787                         set_sec_size(pieces, IWL_UCODE_INIT,
 788                                      IWL_UCODE_SECTION_INST, tlv_len);
 789                         set_sec_offset(pieces, IWL_UCODE_INIT,
 790                                        IWL_UCODE_SECTION_INST,
 791                                        IWLAGN_RTC_INST_LOWER_BOUND);
 792                         break;
 793                 case IWL_UCODE_TLV_INIT_DATA:
 794                         set_sec_data(pieces, IWL_UCODE_INIT,
 795                                      IWL_UCODE_SECTION_DATA, tlv_data);
 796                         set_sec_size(pieces, IWL_UCODE_INIT,
 797                                      IWL_UCODE_SECTION_DATA, tlv_len);
 798                         set_sec_offset(pieces, IWL_UCODE_INIT,
 799                                        IWL_UCODE_SECTION_DATA,
 800                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 801                         break;
 802                 case IWL_UCODE_TLV_BOOT:
 803                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 804                         break;
 805                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 806                         if (tlv_len != sizeof(u32))
 807                                 goto invalid_tlv_len;
 808                         capa->max_probe_length =
 809                                         le32_to_cpup((const __le32 *)tlv_data);
 810                         break;
 811                 case IWL_UCODE_TLV_PAN:
 812                         if (tlv_len)
 813                                 goto invalid_tlv_len;
 814                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 815                         break;
 816                 case IWL_UCODE_TLV_FLAGS:
 817                         /* must be at least one u32 */
 818                         if (tlv_len < sizeof(u32))
 819                                 goto invalid_tlv_len;
 820                         /* and a proper number of u32s */
 821                         if (tlv_len % sizeof(u32))
 822                                 goto invalid_tlv_len;
 823                         /*
 824                          * This driver only reads the first u32 as
 825                          * right now no more features are defined,
 826                          * if that changes then either the driver
 827                          * will not work with the new firmware, or
 828                          * it'll not take advantage of new features.
 829                          */
 830                         capa->flags = le32_to_cpup((const __le32 *)tlv_data);
 831                         break;
 832                 case IWL_UCODE_TLV_API_CHANGES_SET:
 833                         if (tlv_len != sizeof(struct iwl_ucode_api))
 834                                 goto invalid_tlv_len;
 835                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 836                         break;
 837                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 838                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 839                                 goto invalid_tlv_len;
 840                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 841                         break;
 842                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 843                         if (tlv_len != sizeof(u32))
 844                                 goto invalid_tlv_len;
 845                         pieces->init_evtlog_ptr =
 846                                         le32_to_cpup((const __le32 *)tlv_data);
 847                         break;
 848                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 849                         if (tlv_len != sizeof(u32))
 850                                 goto invalid_tlv_len;
 851                         pieces->init_evtlog_size =
 852                                         le32_to_cpup((const __le32 *)tlv_data);
 853                         break;
 854                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 855                         if (tlv_len != sizeof(u32))
 856                                 goto invalid_tlv_len;
 857                         pieces->init_errlog_ptr =
 858                                         le32_to_cpup((const __le32 *)tlv_data);
 859                         break;
 860                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 861                         if (tlv_len != sizeof(u32))
 862                                 goto invalid_tlv_len;
 863                         pieces->inst_evtlog_ptr =
 864                                         le32_to_cpup((const __le32 *)tlv_data);
 865                         break;
 866                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 867                         if (tlv_len != sizeof(u32))
 868                                 goto invalid_tlv_len;
 869                         pieces->inst_evtlog_size =
 870                                         le32_to_cpup((const __le32 *)tlv_data);
 871                         break;
 872                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 873                         if (tlv_len != sizeof(u32))
 874                                 goto invalid_tlv_len;
 875                         pieces->inst_errlog_ptr =
 876                                         le32_to_cpup((const __le32 *)tlv_data);
 877                         break;
 878                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 879                         if (tlv_len)
 880                                 goto invalid_tlv_len;
 881                         drv->fw.enhance_sensitivity_table = true;
 882                         break;
 883                 case IWL_UCODE_TLV_WOWLAN_INST:
 884                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 885                                      IWL_UCODE_SECTION_INST, tlv_data);
 886                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 887                                      IWL_UCODE_SECTION_INST, tlv_len);
 888                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 889                                        IWL_UCODE_SECTION_INST,
 890                                        IWLAGN_RTC_INST_LOWER_BOUND);
 891                         break;
 892                 case IWL_UCODE_TLV_WOWLAN_DATA:
 893                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 894                                      IWL_UCODE_SECTION_DATA, tlv_data);
 895                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 896                                      IWL_UCODE_SECTION_DATA, tlv_len);
 897                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 898                                        IWL_UCODE_SECTION_DATA,
 899                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 900                         break;
 901                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 902                         if (tlv_len != sizeof(u32))
 903                                 goto invalid_tlv_len;
 904                         capa->standard_phy_calibration_size =
 905                                         le32_to_cpup((const __le32 *)tlv_data);
 906                         break;
 907                 case IWL_UCODE_TLV_SEC_RT:
 908                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 909                                             tlv_len);
 910                         drv->fw.type = IWL_FW_MVM;
 911                         break;
 912                 case IWL_UCODE_TLV_SEC_INIT:
 913                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 914                                             tlv_len);
 915                         drv->fw.type = IWL_FW_MVM;
 916                         break;
 917                 case IWL_UCODE_TLV_SEC_WOWLAN:
 918                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 919                                             tlv_len);
 920                         drv->fw.type = IWL_FW_MVM;
 921                         break;
 922                 case IWL_UCODE_TLV_DEF_CALIB:
 923                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 924                                 goto invalid_tlv_len;
 925                         if (iwl_set_default_calib(drv, tlv_data))
 926                                 goto tlv_error;
 927                         break;
 928                 case IWL_UCODE_TLV_PHY_SKU:
 929                         if (tlv_len != sizeof(u32))
 930                                 goto invalid_tlv_len;
 931                         drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
 932                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 933                                                 FW_PHY_CFG_TX_CHAIN) >>
 934                                                 FW_PHY_CFG_TX_CHAIN_POS;
 935                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 936                                                 FW_PHY_CFG_RX_CHAIN) >>
 937                                                 FW_PHY_CFG_RX_CHAIN_POS;
 938                         break;
 939                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 940                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 941                                             tlv_len);
 942                         drv->fw.type = IWL_FW_MVM;
 943                         break;
 944                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 945                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 946                                             tlv_len);
 947                         drv->fw.type = IWL_FW_MVM;
 948                         break;
 949                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 950                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 951                                             tlv_len);
 952                         drv->fw.type = IWL_FW_MVM;
 953                         break;
 954                 case IWL_UCODE_TLV_NUM_OF_CPU:
 955                         if (tlv_len != sizeof(u32))
 956                                 goto invalid_tlv_len;
 957                         num_of_cpus =
 958                                 le32_to_cpup((const __le32 *)tlv_data);
 959
 960                         if (num_of_cpus == 2) {
 961                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 962                                         true;
 963                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 964                                         true;
 965                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 966                                         true;
 967                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 968                                 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
 969                                 return -EINVAL;
 970                         }
 971                         break;
 972                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 973                         if (tlv_len != sizeof(u32))
 974                                 goto invalid_tlv_len;
 975                         capa->n_scan_channels =
 976                                 le32_to_cpup((const __le32 *)tlv_data);
 977                         break;
 978                 case IWL_UCODE_TLV_FW_VERSION: {
 979                         const __le32 *ptr = (const void *)tlv_data;
 980                         u32 major, minor;
 981                         u8 local_comp;
 982
 983                         if (tlv_len != sizeof(u32) * 3)
 984                                 goto invalid_tlv_len;
 985
 986                         major = le32_to_cpup(ptr++);
 987                         minor = le32_to_cpup(ptr++);
 988                         local_comp = le32_to_cpup(ptr);
 989
 990                         if (major >= 35)
 991                                 snprintf(drv->fw.fw_version,
 992                                          sizeof(drv->fw.fw_version),
 993                                         "%u.%08x.%u %s", major, minor,
 994                                         local_comp, iwl_reduced_fw_name(drv));
 995                         else
 996                                 snprintf(drv->fw.fw_version,
 997                                          sizeof(drv->fw.fw_version),
 998                                         "%u.%u.%u %s", major, minor,
 999                                         local_comp, iwl_reduced_fw_name(drv));
1000                         break;
1001                         }
1002                 case IWL_UCODE_TLV_FW_DBG_DEST: {
1003                         const struct iwl_fw_dbg_dest_tlv *dest = NULL;
1004                         const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
1005                         u8 mon_mode;
1006
1007                         pieces->dbg_dest_ver = (const u8 *)tlv_data;
1008                         if (*pieces->dbg_dest_ver == 1) {
1009                                 dest = (const void *)tlv_data;
1010                         } else if (*pieces->dbg_dest_ver == 0) {
1011                                 dest_v1 = (const void *)tlv_data;
1012                         } else {
1013                                 IWL_ERR(drv,
1014                                         "The version is %d, and it is invalid\n",
1015                                         *pieces->dbg_dest_ver);
1016                                 break;
1017                         }
1018
1019                         if (pieces->dbg_dest_tlv_init) {
1020                                 IWL_ERR(drv,
1021                                         "dbg destination ignored, already exists\n");
1022                                 break;
1023                         }
1024
1025                         pieces->dbg_dest_tlv_init = true;
1026
1027                         if (dest_v1) {
1028                                 pieces->dbg_dest_tlv_v1 = dest_v1;
1029                                 mon_mode = dest_v1->monitor_mode;
1030                         } else {
1031                                 pieces->dbg_dest_tlv = dest;
1032                                 mon_mode = dest->monitor_mode;
1033                         }
1034
1035                         IWL_INFO(drv, "Found debug destination: %s\n",
1036                                  get_fw_dbg_mode_string(mon_mode));
1037
1038                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
1039                                 tlv_len -
1040                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1041                                          reg_ops) :
1042                                 tlv_len -
1043                                 offsetof(struct iwl_fw_dbg_dest_tlv,
1044                                          reg_ops);
1045
1046                         drv->fw.dbg.n_dest_reg /=
1047                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1048
1049                         break;
1050                         }
1051                 case IWL_UCODE_TLV_FW_DBG_CONF: {
1052                         const struct iwl_fw_dbg_conf_tlv *conf =
1053                                 (const void *)tlv_data;
1054
1055                         if (!pieces->dbg_dest_tlv_init) {
1056                                 IWL_ERR(drv,
1057                                         "Ignore dbg config %d - no destination configured\n",
1058                                         conf->id);
1059                                 break;
1060                         }
1061
1062                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1063                                 IWL_ERR(drv,
1064                                         "Skip unknown configuration: %d\n",
1065                                         conf->id);
1066                                 break;
1067                         }
1068
1069                         if (pieces->dbg_conf_tlv[conf->id]) {
1070                                 IWL_ERR(drv,
1071                                         "Ignore duplicate dbg config %d\n",
1072                                         conf->id);
1073                                 break;
1074                         }
1075
1076                         if (conf->usniffer)
1077                                 usniffer_req = true;
1078
1079                         IWL_INFO(drv, "Found debug configuration: %d\n",
1080                                  conf->id);
1081
1082                         pieces->dbg_conf_tlv[conf->id] = conf;
1083                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1084                         break;
1085                         }
1086                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1087                         const struct iwl_fw_dbg_trigger_tlv *trigger =
1088                                 (const void *)tlv_data;
1089                         u32 trigger_id = le32_to_cpu(trigger->id);
1090
1091                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1092                                 IWL_ERR(drv,
1093                                         "Skip unknown trigger: %u\n",
1094                                         trigger->id);
1095                                 break;
1096                         }
1097
1098                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1099                                 IWL_ERR(drv,
1100                                         "Ignore duplicate dbg trigger %u\n",
1101                                         trigger->id);
1102                                 break;
1103                         }
1104
1105                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1106
1107                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1108                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1109                         break;
1110                         }
1111                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1112                         if (tlv_len != sizeof(u32)) {
1113                                 IWL_ERR(drv,
1114                                         "dbg lst mask size incorrect, skip\n");
1115                                 break;
1116                         }
1117
1118                         drv->fw.dbg.dump_mask =
1119                                 le32_to_cpup((const __le32 *)tlv_data);
1120                         break;
1121                         }
1122                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1123                         *usniffer_images = true;
1124                         iwl_store_ucode_sec(pieces, tlv_data,
1125                                             IWL_UCODE_REGULAR_USNIFFER,
1126                                             tlv_len);
1127                         break;
1128                 case IWL_UCODE_TLV_PAGING:
1129                         if (tlv_len != sizeof(u32))
1130                                 goto invalid_tlv_len;
1131                         paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1132
1133                         IWL_DEBUG_FW(drv,
1134                                      "Paging: paging enabled (size = %u bytes)\n",
1135                                      paging_mem_size);
1136
1137                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1138                                 IWL_ERR(drv,
1139                                         "Paging: driver supports up to %lu bytes for paging image\n",
1140                                         MAX_PAGING_IMAGE_SIZE);
1141                                 return -EINVAL;
1142                         }
1143
1144                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1145                                 IWL_ERR(drv,
1146                                         "Paging: image isn't multiple %lu\n",
1147                                         FW_PAGING_SIZE);
1148                                 return -EINVAL;
1149                         }
1150
1151                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1152                                 paging_mem_size;
1153                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1154                         drv->fw.img[usniffer_img].paging_mem_size =
1155                                 paging_mem_size;
1156                         break;
1157                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1158                         /* ignored */
1159                         break;
1160                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1161                         const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1162                                 (const void *)tlv_data;
1163                         size_t size;
1164                         struct iwl_fw_dbg_mem_seg_tlv *n;
1165
1166                         if (tlv_len != (sizeof(*dbg_mem)))
1167                                 goto invalid_tlv_len;
1168
1169                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1170                                        dbg_mem->data_type);
1171
1172                         size = sizeof(*pieces->dbg_mem_tlv) *
1173                                (pieces->n_mem_tlv + 1);
1174                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1175                         if (!n)
1176                                 return -ENOMEM;
1177                         pieces->dbg_mem_tlv = n;
1178                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1179                         pieces->n_mem_tlv++;
1180                         break;
1181                         }
1182                 case IWL_UCODE_TLV_IML: {
1183                         drv->fw.iml_len = tlv_len;
1184                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1185                         if (!drv->fw.iml)
1186                                 return -ENOMEM;
1187                         break;
1188                         }
1189                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1190                         const struct {
1191                                 __le32 buf_addr;
1192                                 __le32 buf_size;
1193                         } *recov_info = (const void *)tlv_data;
1194
1195                         if (tlv_len != sizeof(*recov_info))
1196                                 goto invalid_tlv_len;
1197                         capa->error_log_addr =
1198                                 le32_to_cpu(recov_info->buf_addr);
1199                         capa->error_log_size =
1200                                 le32_to_cpu(recov_info->buf_size);
1201                         }
1202                         break;
1203                 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1204                         const struct {
1205                                 u8 version[32];
1206                                 u8 sha1[20];
1207                         } *fseq_ver = (const void *)tlv_data;
1208
1209                         if (tlv_len != sizeof(*fseq_ver))
1210                                 goto invalid_tlv_len;
1211                         IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1212                                  fseq_ver->version);
1213                         }
1214                         break;
1215                 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1216                         if (tlv_len != sizeof(u32))
1217                                 goto invalid_tlv_len;
1218                         if (le32_to_cpup((const __le32 *)tlv_data) >
1219                             IWL_MVM_STATION_COUNT_MAX) {
1220                                 IWL_ERR(drv,
1221                                         "%d is an invalid number of station\n",
1222                                         le32_to_cpup((const __le32 *)tlv_data));
1223                                 goto tlv_error;
1224                         }
1225                         capa->num_stations =
1226                                 le32_to_cpup((const __le32 *)tlv_data);
1227                         break;
1228                 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1229                         if (tlv_len != sizeof(u32))
1230                                 goto invalid_tlv_len;
1231                         capa->num_beacons =
1232                                 le32_to_cpup((const __le32 *)tlv_data);
1233                         break;
1234                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1235                         const struct iwl_umac_debug_addrs *dbg_ptrs =
1236                                 (const void *)tlv_data;
1237
1238                         if (tlv_len != sizeof(*dbg_ptrs))
1239                                 goto invalid_tlv_len;
1240                         if (drv->trans->trans_cfg->device_family <
1241                             IWL_DEVICE_FAMILY_22000)
1242                                 break;
1243                         drv->trans->dbg.umac_error_event_table =
1244                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1245                                 ~FW_ADDR_CACHE_CONTROL;
1246                         drv->trans->dbg.error_event_table_tlv_status |=
1247                                 IWL_ERROR_EVENT_TABLE_UMAC;
1248                         break;
1249                         }
1250                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1251                         const struct iwl_lmac_debug_addrs *dbg_ptrs =
1252                                 (const void *)tlv_data;
1253
1254                         if (tlv_len != sizeof(*dbg_ptrs))
1255                                 goto invalid_tlv_len;
1256                         if (drv->trans->trans_cfg->device_family <
1257                             IWL_DEVICE_FAMILY_22000)
1258                                 break;
1259                         drv->trans->dbg.lmac_error_event_table[0] =
1260                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1261                                 ~FW_ADDR_CACHE_CONTROL;
1262                         drv->trans->dbg.error_event_table_tlv_status |=
1263                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1264                         break;
1265                         }
1266                 case IWL_UCODE_TLV_TYPE_REGIONS:
1267                         iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1268                         fallthrough;
1269                 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1270                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1271                 case IWL_UCODE_TLV_TYPE_HCMD:
1272                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1273                 case IWL_UCODE_TLV_TYPE_CONF_SET:
1274                         if (iwlwifi_mod_params.enable_ini)
1275                                 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1276                         break;
1277                 case IWL_UCODE_TLV_CMD_VERSIONS:
1278                         if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1279                                 IWL_ERR(drv,
1280                                         "Invalid length for command versions: %u\n",
1281                                         tlv_len);
1282                                 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1283                                 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1284                         }
1285                         if (WARN_ON(capa->cmd_versions))
1286                                 return -EINVAL;
1287                         capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1288                                                      GFP_KERNEL);
1289                         if (!capa->cmd_versions)
1290                                 return -ENOMEM;
1291                         capa->n_cmd_versions =
1292                                 tlv_len / sizeof(struct iwl_fw_cmd_version);
1293                         break;
1294                 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1295                         if (drv->fw.phy_integration_ver) {
1296                                 IWL_ERR(drv,
1297                                         "phy integration str ignored, already exists\n");
1298                                 break;
1299                         }
1300
1301                         drv->fw.phy_integration_ver =
1302                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1303                         if (!drv->fw.phy_integration_ver)
1304                                 return -ENOMEM;
1305                         drv->fw.phy_integration_ver_len = tlv_len;
1306                         break;
1307                 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1308                 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1309                         iwl_drv_set_dump_exclude(drv, tlv_type,
1310                                                  tlv_data, tlv_len);
1311                         break;
1312                 case IWL_UCODE_TLV_CURRENT_PC:
1313                         if (tlv_len < sizeof(struct iwl_pc_data))
1314                                 goto invalid_tlv_len;
1315                         drv->trans->dbg.pc_data =
1316                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1317                         if (!drv->trans->dbg.pc_data)
1318                                 return -ENOMEM;
1319                         drv->trans->dbg.num_pc =
1320                                 tlv_len / sizeof(struct iwl_pc_data);
1321                         break;
1322                 default:
1323                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1324                         break;
1325                 }
1326         }
1327
1328         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1329             usniffer_req && !*usniffer_images) {
1330                 IWL_ERR(drv,
1331                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1332                 return -EINVAL;
1333         }
1334
1335         if (len) {
1336                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1337                 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1338                 return -EINVAL;
1339         }
1340
1341         return 0;
1342
1343  invalid_tlv_len:
1344         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1345  tlv_error:
1346         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1347
1348         return -EINVAL;
1349 }
1350
1351 static int iwl_alloc_ucode(struct iwl_drv *drv,
1352                            struct iwl_firmware_pieces *pieces,
1353                            enum iwl_ucode_type type)
1354 {
1355         int i;
1356         struct fw_desc *sec;
1357
1358         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1359         if (!sec)
1360                 return -ENOMEM;
1361         drv->fw.img[type].sec = sec;
1362         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1363
1364         for (i = 0; i < pieces->img[type].sec_counter; i++)
1365                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1366                         return -ENOMEM;
1367
1368         return 0;
1369 }
1370
1371 static int validate_sec_sizes(struct iwl_drv *drv,
1372                               struct iwl_firmware_pieces *pieces,
1373                               const struct iwl_cfg *cfg)
1374 {
1375         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1376                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1377                              IWL_UCODE_SECTION_INST));
1378         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1379                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1380                              IWL_UCODE_SECTION_DATA));
1381         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1382                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1383         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1384                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1385
1386         /* Verify that uCode images will fit in card's SRAM. */
1387         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1388             cfg->max_inst_size) {
1389                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1390                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1391                                      IWL_UCODE_SECTION_INST));
1392                 return -1;
1393         }
1394
1395         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1396             cfg->max_data_size) {
1397                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1398                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1399                                      IWL_UCODE_SECTION_DATA));
1400                 return -1;
1401         }
1402
1403         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1404              cfg->max_inst_size) {
1405                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1406                         get_sec_size(pieces, IWL_UCODE_INIT,
1407                                      IWL_UCODE_SECTION_INST));
1408                 return -1;
1409         }
1410
1411         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1412             cfg->max_data_size) {
1413                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1414                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1415                                      IWL_UCODE_SECTION_DATA));
1416                 return -1;
1417         }
1418         return 0;
1419 }
1420
1421 static struct iwl_op_mode *
1422 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1423 {
1424         const struct iwl_op_mode_ops *ops = op->ops;
1425         struct dentry *dbgfs_dir = NULL;
1426         struct iwl_op_mode *op_mode = NULL;
1427         int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1428
1429         /* also protects start/stop from racing against each other */
1430         lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1431
1432         for (retry = 0; retry <= max_retry; retry++) {
1433
1434 #ifdef CONFIG_IWLWIFI_DEBUGFS
1435                 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1436                                                         drv->dbgfs_drv);
1437                 dbgfs_dir = drv->dbgfs_op_mode;
1438 #endif
1439
1440                 op_mode = ops->start(drv->trans, drv->trans->cfg,
1441                                      &drv->fw, dbgfs_dir);
1442
1443                 if (op_mode)
1444                         return op_mode;
1445
1446                 if (test_bit(STATUS_TRANS_DEAD, &drv->trans->status))
1447                         break;
1448
1449                 IWL_ERR(drv, "retry init count %d\n", retry);
1450
1451 #ifdef CONFIG_IWLWIFI_DEBUGFS
1452                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1453                 drv->dbgfs_op_mode = NULL;
1454 #endif
1455         }
1456
1457         return NULL;
1458 }
1459
1460 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1461 {
1462         /* also protects start/stop from racing against each other */
1463         lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1464
1465         /* op_mode can be NULL if its start failed */
1466         if (drv->op_mode) {
1467                 iwl_op_mode_stop(drv->op_mode);
1468                 drv->op_mode = NULL;
1469
1470 #ifdef CONFIG_IWLWIFI_DEBUGFS
1471                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1472                 drv->dbgfs_op_mode = NULL;
1473 #endif
1474         }
1475 }
1476
1477 /*
1478  * iwl_req_fw_callback - callback when firmware was loaded
1479  *
1480  * If loaded successfully, copies the firmware into buffers
1481  * for the card to fetch (via DMA).
1482  */
1483 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1484 {
1485         struct iwl_drv *drv = context;
1486         struct iwl_fw *fw = &drv->fw;
1487         const struct iwl_ucode_header *ucode;
1488         struct iwlwifi_opmode_table *op;
1489         int err;
1490         struct iwl_firmware_pieces *pieces;
1491         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1492         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1493         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1494         u32 api_ver;
1495         int i;
1496         bool load_module = false;
1497         bool usniffer_images = false;
1498         bool failure = true;
1499
1500         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1501         fw->ucode_capa.standard_phy_calibration_size =
1502                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1503         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1504         fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1505         fw->ucode_capa.num_beacons = 1;
1506         /* dump all fw memory areas by default */
1507         fw->dbg.dump_mask = 0xffffffff;
1508
1509         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1510         if (!pieces)
1511                 goto out_free_fw;
1512
1513         if (!ucode_raw)
1514                 goto try_again;
1515
1516         IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1517                           drv->firmware_name, ucode_raw->size);
1518
1519         /* Make sure that we got at least the API version number */
1520         if (ucode_raw->size < 4) {
1521                 IWL_ERR(drv, "File size way too small!\n");
1522                 goto try_again;
1523         }
1524
1525         /* Data from ucode file:  header followed by uCode images */
1526         ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1527
1528         if (ucode->ver)
1529                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1530         else
1531                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1532                                              &fw->ucode_capa, &usniffer_images);
1533
1534         if (err)
1535                 goto try_again;
1536
1537         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1538                 api_ver = drv->fw.ucode_ver;
1539         else
1540                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1541
1542         /*
1543          * api_ver should match the api version forming part of the
1544          * firmware filename ... but we don't check for that and only rely
1545          * on the API version read from firmware header from here on forward
1546          */
1547         if (api_ver < api_min || api_ver > api_max) {
1548                 IWL_ERR(drv,
1549                         "Driver unable to support your firmware API. "
1550                         "Driver supports v%u, firmware is v%u.\n",
1551                         api_max, api_ver);
1552                 goto try_again;
1553         }
1554
1555         /*
1556          * In mvm uCode there is no difference between data and instructions
1557          * sections.
1558          */
1559         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1560                                                          drv->trans->cfg))
1561                 goto try_again;
1562
1563         /* Allocate ucode buffers for card's bus-master loading ... */
1564
1565         /* Runtime instructions and 2 copies of data:
1566          * 1) unmodified from disk
1567          * 2) backup cache for save/restore during power-downs
1568          */
1569         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1570                 if (iwl_alloc_ucode(drv, pieces, i))
1571                         goto out_free_fw;
1572
1573         if (pieces->dbg_dest_tlv_init) {
1574                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1575                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1576                         drv->fw.dbg.n_dest_reg;
1577
1578                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1579
1580                 if (!drv->fw.dbg.dest_tlv)
1581                         goto out_free_fw;
1582
1583                 if (*pieces->dbg_dest_ver == 0) {
1584                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1585                                dbg_dest_size);
1586                 } else {
1587                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1588                                 drv->fw.dbg.dest_tlv;
1589
1590                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1591                         dest_tlv->monitor_mode =
1592                                 pieces->dbg_dest_tlv->monitor_mode;
1593                         dest_tlv->size_power =
1594                                 pieces->dbg_dest_tlv->size_power;
1595                         dest_tlv->wrap_count =
1596                                 pieces->dbg_dest_tlv->wrap_count;
1597                         dest_tlv->write_ptr_reg =
1598                                 pieces->dbg_dest_tlv->write_ptr_reg;
1599                         dest_tlv->base_shift =
1600                                 pieces->dbg_dest_tlv->base_shift;
1601                         memcpy(dest_tlv->reg_ops,
1602                                pieces->dbg_dest_tlv->reg_ops,
1603                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1604                                drv->fw.dbg.n_dest_reg);
1605
1606                         /* In version 1 of the destination tlv, which is
1607                          * relevant for internal buffer exclusively,
1608                          * the base address is part of given with the length
1609                          * of the buffer, and the size shift is give instead of
1610                          * end shift. We now store these values in base_reg,
1611                          * and end shift, and when dumping the data we'll
1612                          * manipulate it for extracting both the length and
1613                          * base address */
1614                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1615                         dest_tlv->end_shift =
1616                                 pieces->dbg_dest_tlv->size_shift;
1617                 }
1618         }
1619
1620         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1621                 if (pieces->dbg_conf_tlv[i]) {
1622                         drv->fw.dbg.conf_tlv[i] =
1623                                 kmemdup(pieces->dbg_conf_tlv[i],
1624                                         pieces->dbg_conf_tlv_len[i],
1625                                         GFP_KERNEL);
1626                         if (!drv->fw.dbg.conf_tlv[i])
1627                                 goto out_free_fw;
1628                 }
1629         }
1630
1631         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1632
1633         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1634                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1635         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1636         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1637                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1638         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1639                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1640         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1641                 sizeof(struct iwl_fw_dbg_trigger_stats);
1642         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1643                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1644         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1645                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1646         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1647                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1648         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1649                 sizeof(struct iwl_fw_dbg_trigger_ba);
1650         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1651                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1652
1653         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1654                 if (pieces->dbg_trigger_tlv[i]) {
1655                         /*
1656                          * If the trigger isn't long enough, WARN and exit.
1657                          * Someone is trying to debug something and he won't
1658                          * be able to catch the bug he is trying to chase.
1659                          * We'd better be noisy to be sure he knows what's
1660                          * going on.
1661                          */
1662                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1663                                     (trigger_tlv_sz[i] +
1664                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1665                                 goto out_free_fw;
1666                         drv->fw.dbg.trigger_tlv_len[i] =
1667                                 pieces->dbg_trigger_tlv_len[i];
1668                         drv->fw.dbg.trigger_tlv[i] =
1669                                 kmemdup(pieces->dbg_trigger_tlv[i],
1670                                         drv->fw.dbg.trigger_tlv_len[i],
1671                                         GFP_KERNEL);
1672                         if (!drv->fw.dbg.trigger_tlv[i])
1673                                 goto out_free_fw;
1674                 }
1675         }
1676
1677         /* Now that we can no longer fail, copy information */
1678
1679         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1680         pieces->dbg_mem_tlv = NULL;
1681         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1682
1683         /*
1684          * The (size - 16) / 12 formula is based on the information recorded
1685          * for each event, which is of mode 1 (including timestamp) for all
1686          * new microcodes that include this information.
1687          */
1688         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1689         if (pieces->init_evtlog_size)
1690                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1691         else
1692                 fw->init_evtlog_size =
1693                         drv->trans->trans_cfg->base_params->max_event_log_size;
1694         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1695         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1696         if (pieces->inst_evtlog_size)
1697                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1698         else
1699                 fw->inst_evtlog_size =
1700                         drv->trans->trans_cfg->base_params->max_event_log_size;
1701         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1702
1703         /*
1704          * figure out the offset of chain noise reset and gain commands
1705          * base on the size of standard phy calibration commands table size
1706          */
1707         if (fw->ucode_capa.standard_phy_calibration_size >
1708             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1709                 fw->ucode_capa.standard_phy_calibration_size =
1710                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1711
1712         /* We have our copies now, allow OS release its copies */
1713         release_firmware(ucode_raw);
1714
1715         iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1716
1717         mutex_lock(&iwlwifi_opmode_table_mtx);
1718         switch (fw->type) {
1719         case IWL_FW_DVM:
1720                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1721                 break;
1722         default:
1723                 WARN(1, "Invalid fw type %d\n", fw->type);
1724                 fallthrough;
1725         case IWL_FW_MVM:
1726                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1727                 break;
1728         }
1729
1730         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1731                  drv->fw.fw_version, op->name);
1732
1733         /* add this device to the list of devices using this op_mode */
1734         list_add_tail(&drv->list, &op->drv);
1735
1736         if (op->ops) {
1737                 drv->op_mode = _iwl_op_mode_start(drv, op);
1738
1739                 if (!drv->op_mode) {
1740                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1741                         goto out_unbind;
1742                 }
1743         } else {
1744                 load_module = true;
1745         }
1746         mutex_unlock(&iwlwifi_opmode_table_mtx);
1747
1748         complete(&drv->request_firmware_complete);
1749
1750         /*
1751          * Load the module last so we don't block anything
1752          * else from proceeding if the module fails to load
1753          * or hangs loading.
1754          */
1755         if (load_module)
1756                 request_module("%s", op->name);
1757         failure = false;
1758         goto free;
1759
1760  try_again:
1761         /* try next, if any */
1762         release_firmware(ucode_raw);
1763         if (iwl_request_firmware(drv, false))
1764                 goto out_unbind;
1765         goto free;
1766
1767  out_free_fw:
1768         release_firmware(ucode_raw);
1769  out_unbind:
1770         complete(&drv->request_firmware_complete);
1771         device_release_driver(drv->trans->dev);
1772         /* drv has just been freed by the release */
1773         failure = false;
1774  free:
1775         if (failure)
1776                 iwl_dealloc_ucode(drv);
1777
1778         if (pieces) {
1779                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1780                         kfree(pieces->img[i].sec);
1781                 kfree(pieces->dbg_mem_tlv);
1782                 kfree(pieces);
1783         }
1784 }
1785
1786 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1787 {
1788         struct iwl_drv *drv;
1789         int ret;
1790
1791         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1792         if (!drv) {
1793                 ret = -ENOMEM;
1794                 goto err;
1795         }
1796
1797         drv->trans = trans;
1798         drv->dev = trans->dev;
1799
1800         init_completion(&drv->request_firmware_complete);
1801         INIT_LIST_HEAD(&drv->list);
1802
1803 #ifdef CONFIG_IWLWIFI_DEBUGFS
1804         /* Create the device debugfs entries. */
1805         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1806                                             iwl_dbgfs_root);
1807
1808         /* Create transport layer debugfs dir */
1809         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1810 #endif
1811
1812         drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1813         if (iwlwifi_mod_params.enable_ini != ENABLE_INI) {
1814                 /* We have a non-default value in the module parameter,
1815                  * take its value
1816                  */
1817                 drv->trans->dbg.domains_bitmap &= 0xffff;
1818                 if (iwlwifi_mod_params.enable_ini != IWL_FW_INI_PRESET_DISABLE) {
1819                         if (iwlwifi_mod_params.enable_ini > ENABLE_INI) {
1820                                 IWL_ERR(trans,
1821                                         "invalid enable_ini module parameter value: max = %d, using 0 instead\n",
1822                                         ENABLE_INI);
1823                                 iwlwifi_mod_params.enable_ini = 0;
1824                         }
1825                         drv->trans->dbg.domains_bitmap =
1826                                 BIT(IWL_FW_DBG_DOMAIN_POS + iwlwifi_mod_params.enable_ini);
1827                 }
1828         }
1829
1830         ret = iwl_request_firmware(drv, true);
1831         if (ret) {
1832                 IWL_ERR(trans, "Couldn't request the fw\n");
1833                 goto err_fw;
1834         }
1835
1836         return drv;
1837
1838 err_fw:
1839 #ifdef CONFIG_IWLWIFI_DEBUGFS
1840         debugfs_remove_recursive(drv->dbgfs_drv);
1841         iwl_dbg_tlv_free(drv->trans);
1842 #endif
1843         kfree(drv);
1844 err:
1845         return ERR_PTR(ret);
1846 }
1847
1848 void iwl_drv_stop(struct iwl_drv *drv)
1849 {
1850         wait_for_completion(&drv->request_firmware_complete);
1851
1852         mutex_lock(&iwlwifi_opmode_table_mtx);
1853
1854         _iwl_op_mode_stop(drv);
1855
1856         iwl_dealloc_ucode(drv);
1857
1858         /*
1859          * List is empty (this item wasn't added)
1860          * when firmware loading failed -- in that
1861          * case we can't remove it from any list.
1862          */
1863         if (!list_empty(&drv->list))
1864                 list_del(&drv->list);
1865         mutex_unlock(&iwlwifi_opmode_table_mtx);
1866
1867 #ifdef CONFIG_IWLWIFI_DEBUGFS
1868         drv->trans->ops->debugfs_cleanup(drv->trans);
1869
1870         debugfs_remove_recursive(drv->dbgfs_drv);
1871 #endif
1872
1873         iwl_dbg_tlv_free(drv->trans);
1874
1875         kfree(drv);
1876 }
1877
1878 /* shared module parameters */
1879 struct iwl_mod_params iwlwifi_mod_params = {
1880         .fw_restart = true,
1881         .bt_coex_active = true,
1882         .power_level = IWL_POWER_INDEX_1,
1883         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1884         .enable_ini = ENABLE_INI,
1885         /* the rest are 0 by default */
1886 };
1887 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1888
1889 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1890 {
1891         int i;
1892         struct iwl_drv *drv;
1893         struct iwlwifi_opmode_table *op;
1894
1895         mutex_lock(&iwlwifi_opmode_table_mtx);
1896         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1897                 op = &iwlwifi_opmode_table[i];
1898                 if (strcmp(op->name, name))
1899                         continue;
1900                 op->ops = ops;
1901                 /* TODO: need to handle exceptional case */
1902                 list_for_each_entry(drv, &op->drv, list)
1903                         drv->op_mode = _iwl_op_mode_start(drv, op);
1904
1905                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1906                 return 0;
1907         }
1908         mutex_unlock(&iwlwifi_opmode_table_mtx);
1909         return -EIO;
1910 }
1911 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1912
1913 void iwl_opmode_deregister(const char *name)
1914 {
1915         int i;
1916         struct iwl_drv *drv;
1917
1918         mutex_lock(&iwlwifi_opmode_table_mtx);
1919         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1920                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1921                         continue;
1922                 iwlwifi_opmode_table[i].ops = NULL;
1923
1924                 /* call the stop routine for all devices */
1925                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1926                         _iwl_op_mode_stop(drv);
1927
1928                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1929                 return;
1930         }
1931         mutex_unlock(&iwlwifi_opmode_table_mtx);
1932 }
1933 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1934
1935 static int __init iwl_drv_init(void)
1936 {
1937         int i, err;
1938
1939         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1940                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1941
1942         pr_info(DRV_DESCRIPTION "\n");
1943
1944 #ifdef CONFIG_IWLWIFI_DEBUGFS
1945         /* Create the root of iwlwifi debugfs subsystem. */
1946         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1947 #endif
1948
1949         err = iwl_pci_register_driver();
1950         if (err)
1951                 goto cleanup_debugfs;
1952
1953         return 0;
1954
1955 cleanup_debugfs:
1956 #ifdef CONFIG_IWLWIFI_DEBUGFS
1957         debugfs_remove_recursive(iwl_dbgfs_root);
1958 #endif
1959         return err;
1960 }
1961 module_init(iwl_drv_init);
1962
1963 static void __exit iwl_drv_exit(void)
1964 {
1965         iwl_pci_unregister_driver();
1966
1967 #ifdef CONFIG_IWLWIFI_DEBUGFS
1968         debugfs_remove_recursive(iwl_dbgfs_root);
1969 #endif
1970 }
1971 module_exit(iwl_drv_exit);
1972
1973 #ifdef CONFIG_IWLWIFI_DEBUG
1974 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1975 MODULE_PARM_DESC(debug, "debug output mask");
1976 #endif
1977
1978 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1979 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1980 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1981 MODULE_PARM_DESC(11n_disable,
1982         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1983 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1984 MODULE_PARM_DESC(amsdu_size,
1985                  "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1986                  "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1987 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1988 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1989
1990 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1991 MODULE_PARM_DESC(nvm_file, "NVM file name");
1992
1993 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1994 MODULE_PARM_DESC(uapsd_disable,
1995                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1996
1997 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, uint, 0444);
1998 MODULE_PARM_DESC(enable_ini,
1999                  "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
2000                  "Debug INI TLV FW debug infrastructure (default: 16)");
2001
2002 /*
2003  * set bt_coex_active to true, uCode will do kill/defer
2004  * every time the priority line is asserted (BT is sending signals on the
2005  * priority line in the PCIx).
2006  * set bt_coex_active to false, uCode will ignore the BT activity and
2007  * perform the normal operation
2008  *
2009  * User might experience transmit issue on some platform due to WiFi/BT
2010  * co-exist problem. The possible behaviors are:
2011  *   Able to scan and finding all the available AP
2012  *   Not able to associate with any AP
2013  * On those platforms, WiFi communication can be restored by set
2014  * "bt_coex_active" module parameter to "false"
2015  *
2016  * default: bt_coex_active = true (BT_COEX_ENABLE)
2017  */
2018 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2019                    bool, 0444);
2020 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2021
2022 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2023 MODULE_PARM_DESC(led_mode, "0=system default, "
2024                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2025
2026 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2027 MODULE_PARM_DESC(power_save,
2028                  "enable WiFi power management (default: disable)");
2029
2030 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2031 MODULE_PARM_DESC(power_level,
2032                  "default power save level (range from 1 - 5, default: 1)");
2033
2034 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2035 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2036
2037 module_param_named(remove_when_gone,
2038                    iwlwifi_mod_params.remove_when_gone, bool,
2039                    0444);
2040 MODULE_PARM_DESC(remove_when_gone,
2041                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2042
2043 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2044                    S_IRUGO);
2045 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2046
2047 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2048 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");