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, 2018-2020 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_AUTHOR(DRV_AUTHOR);
  35 MODULE_LICENSE("GPL");
  36
  37 #ifdef CONFIG_IWLWIFI_DEBUGFS
  38 static struct dentry *iwl_dbgfs_root;
  39 #endif
  40
  41 /**
  42  * struct iwl_drv - drv common data
  43  * @list: list of drv structures using this opmode
  44  * @fw: the iwl_fw structure
  45  * @op_mode: the running op_mode
  46  * @trans: transport layer
  47  * @dev: for debug prints only
  48  * @fw_index: firmware revision to try loading
  49  * @firmware_name: composite filename of ucode file to load
  50  * @request_firmware_complete: the firmware has been obtained from user space
  51  * @dbgfs_drv: debugfs root directory entry
  52  * @dbgfs_trans: debugfs transport directory entry
  53  * @dbgfs_op_mode: debugfs op_mode directory entry
  54  */
  55 struct iwl_drv {
  56         struct list_head list;
  57         struct iwl_fw fw;
  58
  59         struct iwl_op_mode *op_mode;
  60         struct iwl_trans *trans;
  61         struct device *dev;
  62
  63         int fw_index;                   /* firmware we're trying to load */
  64         char firmware_name[64];         /* name of firmware file to load */
  65
  66         struct completion request_firmware_complete;
  67
  68 #ifdef CONFIG_IWLWIFI_DEBUGFS
  69         struct dentry *dbgfs_drv;
  70         struct dentry *dbgfs_trans;
  71         struct dentry *dbgfs_op_mode;
  72 #endif
  73 };
  74
  75 enum {
  76         DVM_OP_MODE,
  77         MVM_OP_MODE,
  78 };
  79
  80 /* Protects the table contents, i.e. the ops pointer & drv list */
  81 static struct mutex iwlwifi_opmode_table_mtx;
  82 static struct iwlwifi_opmode_table {
  83         const char *name;                       /* name: iwldvm, iwlmvm, etc */
  84         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
  85         struct list_head drv;           /* list of devices using this op_mode */
  86 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
  87         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
  88         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
  89 };
  90
  91 #define IWL_DEFAULT_SCAN_CHANNELS 40
  92
  93 /*
  94  * struct fw_sec: Just for the image parsing process.
  95  * For the fw storage we are using struct fw_desc.
  96  */
  97 struct fw_sec {
  98         const void *data;               /* the sec data */
  99         size_t size;                    /* section size */
 100         u32 offset;                     /* offset of writing in the device */
 101 };
 102
 103 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 104 {
 105         vfree(desc->data);
 106         desc->data = NULL;
 107         desc->len = 0;
 108 }
 109
 110 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 111 {
 112         int i;
 113         for (i = 0; i < img->num_sec; i++)
 114                 iwl_free_fw_desc(drv, &img->sec[i]);
 115         kfree(img->sec);
 116 }
 117
 118 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 119 {
 120         int i;
 121
 122         kfree(drv->fw.dbg.dest_tlv);
 123         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
 124                 kfree(drv->fw.dbg.conf_tlv[i]);
 125         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
 126                 kfree(drv->fw.dbg.trigger_tlv[i]);
 127         kfree(drv->fw.dbg.mem_tlv);
 128         kfree(drv->fw.iml);
 129         kfree(drv->fw.ucode_capa.cmd_versions);
 130
 131         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 132                 iwl_free_fw_img(drv, drv->fw.img + i);
 133 }
 134
 135 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 136                              struct fw_sec *sec)
 137 {
 138         void *data;
 139
 140         desc->data = NULL;
 141
 142         if (!sec || !sec->size)
 143                 return -EINVAL;
 144
 145         data = vmalloc(sec->size);
 146         if (!data)
 147                 return -ENOMEM;
 148
 149         desc->len = sec->size;
 150         desc->offset = sec->offset;
 151         memcpy(data, sec->data, desc->len);
 152         desc->data = data;
 153
 154         return 0;
 155 }
 156
 157 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 158                                 void *context);
 159
 160 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 161 {
 162         const struct iwl_cfg *cfg = drv->trans->cfg;
 163         char tag[8];
 164
 165         if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 166             (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
 167              CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
 168                 IWL_ERR(drv,
 169                         "Only HW steps B and C are currently supported (0x%0x)\n",
 170                         drv->trans->hw_rev);
 171                 return -EINVAL;
 172         }
 173
 174         if (first) {
 175                 drv->fw_index = cfg->ucode_api_max;
 176                 sprintf(tag, "%d", drv->fw_index);
 177         } else {
 178                 drv->fw_index--;
 179                 sprintf(tag, "%d", drv->fw_index);
 180         }
 181
 182         if (drv->fw_index < cfg->ucode_api_min) {
 183                 IWL_ERR(drv, "no suitable firmware found!\n");
 184
 185                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 186                         IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
 187                                 cfg->ucode_api_max);
 188                 } else {
 189                         IWL_ERR(drv, "minimum version required: %s%d\n",
 190                                 cfg->fw_name_pre, cfg->ucode_api_min);
 191                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 192                                 cfg->fw_name_pre, cfg->ucode_api_max);
 193                 }
 194
 195                 IWL_ERR(drv,
 196                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 197                 return -ENOENT;
 198         }
 199
 200         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 201                  cfg->fw_name_pre, tag);
 202
 203         IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
 204                           drv->firmware_name);
 205
 206         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 207                                        drv->trans->dev,
 208                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 209 }
 210
 211 struct fw_img_parsing {
 212         struct fw_sec *sec;
 213         int sec_counter;
 214 };
 215
 216 /*
 217  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 218  */
 219 struct fw_sec_parsing {
 220         __le32 offset;
 221         const u8 data[];
 222 } __packed;
 223
 224 /**
 225  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 226  *
 227  * @ucode_type: the uCode to which the following default calib relates.
 228  * @calib: default calibrations.
 229  */
 230 struct iwl_tlv_calib_data {
 231         __le32 ucode_type;
 232         struct iwl_tlv_calib_ctrl calib;
 233 } __packed;
 234
 235 struct iwl_firmware_pieces {
 236         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 237
 238         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 239         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 240
 241         /* FW debug data parsed for driver usage */
 242         bool dbg_dest_tlv_init;
 243         u8 *dbg_dest_ver;
 244         union {
 245                 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 246                 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 247         };
 248         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 249         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 250         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 251         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 252         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 253         size_t n_mem_tlv;
 254 };
 255
 256 /*
 257  * These functions are just to extract uCode section data from the pieces
 258  * structure.
 259  */
 260 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 261                               enum iwl_ucode_type type,
 262                               int  sec)
 263 {
 264         return &pieces->img[type].sec[sec];
 265 }
 266
 267 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 268                            enum iwl_ucode_type type,
 269                            int sec)
 270 {
 271         struct fw_img_parsing *img = &pieces->img[type];
 272         struct fw_sec *sec_memory;
 273         int size = sec + 1;
 274         size_t alloc_size = sizeof(*img->sec) * size;
 275
 276         if (img->sec && img->sec_counter >= size)
 277                 return;
 278
 279         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 280         if (!sec_memory)
 281                 return;
 282
 283         img->sec = sec_memory;
 284         img->sec_counter = size;
 285 }
 286
 287 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 288                          enum iwl_ucode_type type,
 289                          int sec,
 290                          const void *data)
 291 {
 292         alloc_sec_data(pieces, type, sec);
 293
 294         pieces->img[type].sec[sec].data = data;
 295 }
 296
 297 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 298                          enum iwl_ucode_type type,
 299                          int sec,
 300                          size_t size)
 301 {
 302         alloc_sec_data(pieces, type, sec);
 303
 304         pieces->img[type].sec[sec].size = size;
 305 }
 306
 307 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 308                            enum iwl_ucode_type type,
 309                            int sec)
 310 {
 311         return pieces->img[type].sec[sec].size;
 312 }
 313
 314 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 315                            enum iwl_ucode_type type,
 316                            int sec,
 317                            u32 offset)
 318 {
 319         alloc_sec_data(pieces, type, sec);
 320
 321         pieces->img[type].sec[sec].offset = offset;
 322 }
 323
 324 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 325 {
 326         int i, j;
 327         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 328         struct iwl_fw_cipher_scheme *fwcs;
 329
 330         if (len < sizeof(*l) ||
 331             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 332                 return -EINVAL;
 333
 334         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 335                 fwcs = &l->cs[j];
 336
 337                 /* we skip schemes with zero cipher suite selector */
 338                 if (!fwcs->cipher)
 339                         continue;
 340
 341                 fw->cs[j++] = *fwcs;
 342         }
 343
 344         return 0;
 345 }
 346
 347 /*
 348  * Gets uCode section from tlv.
 349  */
 350 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 351                                const void *data, enum iwl_ucode_type type,
 352                                int size)
 353 {
 354         struct fw_img_parsing *img;
 355         struct fw_sec *sec;
 356         struct fw_sec_parsing *sec_parse;
 357         size_t alloc_size;
 358
 359         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 360                 return -1;
 361
 362         sec_parse = (struct fw_sec_parsing *)data;
 363
 364         img = &pieces->img[type];
 365
 366         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 367         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 368         if (!sec)
 369                 return -ENOMEM;
 370         img->sec = sec;
 371
 372         sec = &img->sec[img->sec_counter];
 373
 374         sec->offset = le32_to_cpu(sec_parse->offset);
 375         sec->data = sec_parse->data;
 376         sec->size = size - sizeof(sec_parse->offset);
 377
 378         ++img->sec_counter;
 379
 380         return 0;
 381 }
 382
 383 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 384 {
 385         struct iwl_tlv_calib_data *def_calib =
 386                                         (struct iwl_tlv_calib_data *)data;
 387         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 388         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 389                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 390                         ucode_type);
 391                 return -EINVAL;
 392         }
 393         drv->fw.default_calib[ucode_type].flow_trigger =
 394                 def_calib->calib.flow_trigger;
 395         drv->fw.default_calib[ucode_type].event_trigger =
 396                 def_calib->calib.event_trigger;
 397
 398         return 0;
 399 }
 400
 401 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 402                                     struct iwl_ucode_capabilities *capa)
 403 {
 404         const struct iwl_ucode_api *ucode_api = (void *)data;
 405         u32 api_index = le32_to_cpu(ucode_api->api_index);
 406         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 407         int i;
 408
 409         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 410                 IWL_WARN(drv,
 411                          "api flags index %d larger than supported by driver\n",
 412                          api_index);
 413                 return;
 414         }
 415
 416         for (i = 0; i < 32; i++) {
 417                 if (api_flags & BIT(i))
 418                         __set_bit(i + 32 * api_index, capa->_api);
 419         }
 420 }
 421
 422 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 423                                        struct iwl_ucode_capabilities *capa)
 424 {
 425         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 426         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 427         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 428         int i;
 429
 430         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 431                 IWL_WARN(drv,
 432                          "capa flags index %d larger than supported by driver\n",
 433                          api_index);
 434                 return;
 435         }
 436
 437         for (i = 0; i < 32; i++) {
 438                 if (api_flags & BIT(i))
 439                         __set_bit(i + 32 * api_index, capa->_capa);
 440         }
 441 }
 442
 443 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
 444 {
 445         const char *name = drv->firmware_name;
 446
 447         if (strncmp(name, "iwlwifi-", 8) == 0)
 448                 name += 8;
 449
 450         return name;
 451 }
 452
 453 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 454                                     const struct firmware *ucode_raw,
 455                                     struct iwl_firmware_pieces *pieces)
 456 {
 457         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 458         u32 api_ver, hdr_size, build;
 459         char buildstr[25];
 460         const u8 *src;
 461
 462         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 463         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 464
 465         switch (api_ver) {
 466         default:
 467                 hdr_size = 28;
 468                 if (ucode_raw->size < hdr_size) {
 469                         IWL_ERR(drv, "File size too small!\n");
 470                         return -EINVAL;
 471                 }
 472                 build = le32_to_cpu(ucode->u.v2.build);
 473                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 474                              le32_to_cpu(ucode->u.v2.inst_size));
 475                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 476                              le32_to_cpu(ucode->u.v2.data_size));
 477                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 478                              le32_to_cpu(ucode->u.v2.init_size));
 479                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 480                              le32_to_cpu(ucode->u.v2.init_data_size));
 481                 src = ucode->u.v2.data;
 482                 break;
 483         case 0:
 484         case 1:
 485         case 2:
 486                 hdr_size = 24;
 487                 if (ucode_raw->size < hdr_size) {
 488                         IWL_ERR(drv, "File size too small!\n");
 489                         return -EINVAL;
 490                 }
 491                 build = 0;
 492                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 493                              le32_to_cpu(ucode->u.v1.inst_size));
 494                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 495                              le32_to_cpu(ucode->u.v1.data_size));
 496                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 497                              le32_to_cpu(ucode->u.v1.init_size));
 498                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 499                              le32_to_cpu(ucode->u.v1.init_data_size));
 500                 src = ucode->u.v1.data;
 501                 break;
 502         }
 503
 504         if (build)
 505                 sprintf(buildstr, " build %u", build);
 506         else
 507                 buildstr[0] = '\0';
 508
 509         snprintf(drv->fw.fw_version,
 510                  sizeof(drv->fw.fw_version),
 511                  "%u.%u.%u.%u%s %s",
 512                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 513                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 514                  IWL_UCODE_API(drv->fw.ucode_ver),
 515                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 516                  buildstr, iwl_reduced_fw_name(drv));
 517
 518         /* Verify size of file vs. image size info in file's header */
 519
 520         if (ucode_raw->size != hdr_size +
 521             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 522             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 523             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 524             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 525
 526                 IWL_ERR(drv,
 527                         "uCode file size %d does not match expected size\n",
 528                         (int)ucode_raw->size);
 529                 return -EINVAL;
 530         }
 531
 532
 533         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 534         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 535         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 536                        IWLAGN_RTC_INST_LOWER_BOUND);
 537         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 538         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 539         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 540                        IWLAGN_RTC_DATA_LOWER_BOUND);
 541         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 542         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 543         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 544                        IWLAGN_RTC_INST_LOWER_BOUND);
 545         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 546         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 547         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 548                        IWLAGN_RTC_DATA_LOWER_BOUND);
 549         return 0;
 550 }
 551
 552 #define FW_ADDR_CACHE_CONTROL 0xC0000000
 553
 554 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 555                                 const struct firmware *ucode_raw,
 556                                 struct iwl_firmware_pieces *pieces,
 557                                 struct iwl_ucode_capabilities *capa,
 558                                 bool *usniffer_images)
 559 {
 560         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 561         struct iwl_ucode_tlv *tlv;
 562         size_t len = ucode_raw->size;
 563         const u8 *data;
 564         u32 tlv_len;
 565         u32 usniffer_img;
 566         enum iwl_ucode_tlv_type tlv_type;
 567         const u8 *tlv_data;
 568         char buildstr[25];
 569         u32 build, paging_mem_size;
 570         int num_of_cpus;
 571         bool usniffer_req = false;
 572
 573         if (len < sizeof(*ucode)) {
 574                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 575                 return -EINVAL;
 576         }
 577
 578         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 579                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 580                         le32_to_cpu(ucode->magic));
 581                 return -EINVAL;
 582         }
 583
 584         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 585         memcpy(drv->fw.human_readable, ucode->human_readable,
 586                sizeof(drv->fw.human_readable));
 587         build = le32_to_cpu(ucode->build);
 588
 589         if (build)
 590                 sprintf(buildstr, " build %u", build);
 591         else
 592                 buildstr[0] = '\0';
 593
 594         snprintf(drv->fw.fw_version,
 595                  sizeof(drv->fw.fw_version),
 596                  "%u.%u.%u.%u%s %s",
 597                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 598                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 599                  IWL_UCODE_API(drv->fw.ucode_ver),
 600                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 601                  buildstr, iwl_reduced_fw_name(drv));
 602
 603         data = ucode->data;
 604
 605         len -= sizeof(*ucode);
 606
 607         while (len >= sizeof(*tlv)) {
 608                 len -= sizeof(*tlv);
 609                 tlv = (void *)data;
 610
 611                 tlv_len = le32_to_cpu(tlv->length);
 612                 tlv_type = le32_to_cpu(tlv->type);
 613                 tlv_data = tlv->data;
 614
 615                 if (len < tlv_len) {
 616                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 617                                 len, tlv_len);
 618                         return -EINVAL;
 619                 }
 620                 len -= ALIGN(tlv_len, 4);
 621                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 622
 623                 switch (tlv_type) {
 624                 case IWL_UCODE_TLV_INST:
 625                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 626                                      IWL_UCODE_SECTION_INST, tlv_data);
 627                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 628                                      IWL_UCODE_SECTION_INST, tlv_len);
 629                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 630                                        IWL_UCODE_SECTION_INST,
 631                                        IWLAGN_RTC_INST_LOWER_BOUND);
 632                         break;
 633                 case IWL_UCODE_TLV_DATA:
 634                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 635                                      IWL_UCODE_SECTION_DATA, tlv_data);
 636                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 637                                      IWL_UCODE_SECTION_DATA, tlv_len);
 638                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 639                                        IWL_UCODE_SECTION_DATA,
 640                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 641                         break;
 642                 case IWL_UCODE_TLV_INIT:
 643                         set_sec_data(pieces, IWL_UCODE_INIT,
 644                                      IWL_UCODE_SECTION_INST, tlv_data);
 645                         set_sec_size(pieces, IWL_UCODE_INIT,
 646                                      IWL_UCODE_SECTION_INST, tlv_len);
 647                         set_sec_offset(pieces, IWL_UCODE_INIT,
 648                                        IWL_UCODE_SECTION_INST,
 649                                        IWLAGN_RTC_INST_LOWER_BOUND);
 650                         break;
 651                 case IWL_UCODE_TLV_INIT_DATA:
 652                         set_sec_data(pieces, IWL_UCODE_INIT,
 653                                      IWL_UCODE_SECTION_DATA, tlv_data);
 654                         set_sec_size(pieces, IWL_UCODE_INIT,
 655                                      IWL_UCODE_SECTION_DATA, tlv_len);
 656                         set_sec_offset(pieces, IWL_UCODE_INIT,
 657                                        IWL_UCODE_SECTION_DATA,
 658                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 659                         break;
 660                 case IWL_UCODE_TLV_BOOT:
 661                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 662                         break;
 663                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 664                         if (tlv_len != sizeof(u32))
 665                                 goto invalid_tlv_len;
 666                         capa->max_probe_length =
 667                                         le32_to_cpup((__le32 *)tlv_data);
 668                         break;
 669                 case IWL_UCODE_TLV_PAN:
 670                         if (tlv_len)
 671                                 goto invalid_tlv_len;
 672                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 673                         break;
 674                 case IWL_UCODE_TLV_FLAGS:
 675                         /* must be at least one u32 */
 676                         if (tlv_len < sizeof(u32))
 677                                 goto invalid_tlv_len;
 678                         /* and a proper number of u32s */
 679                         if (tlv_len % sizeof(u32))
 680                                 goto invalid_tlv_len;
 681                         /*
 682                          * This driver only reads the first u32 as
 683                          * right now no more features are defined,
 684                          * if that changes then either the driver
 685                          * will not work with the new firmware, or
 686                          * it'll not take advantage of new features.
 687                          */
 688                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 689                         break;
 690                 case IWL_UCODE_TLV_API_CHANGES_SET:
 691                         if (tlv_len != sizeof(struct iwl_ucode_api))
 692                                 goto invalid_tlv_len;
 693                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 694                         break;
 695                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 696                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 697                                 goto invalid_tlv_len;
 698                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 699                         break;
 700                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 701                         if (tlv_len != sizeof(u32))
 702                                 goto invalid_tlv_len;
 703                         pieces->init_evtlog_ptr =
 704                                         le32_to_cpup((__le32 *)tlv_data);
 705                         break;
 706                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 707                         if (tlv_len != sizeof(u32))
 708                                 goto invalid_tlv_len;
 709                         pieces->init_evtlog_size =
 710                                         le32_to_cpup((__le32 *)tlv_data);
 711                         break;
 712                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 713                         if (tlv_len != sizeof(u32))
 714                                 goto invalid_tlv_len;
 715                         pieces->init_errlog_ptr =
 716                                         le32_to_cpup((__le32 *)tlv_data);
 717                         break;
 718                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 719                         if (tlv_len != sizeof(u32))
 720                                 goto invalid_tlv_len;
 721                         pieces->inst_evtlog_ptr =
 722                                         le32_to_cpup((__le32 *)tlv_data);
 723                         break;
 724                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 725                         if (tlv_len != sizeof(u32))
 726                                 goto invalid_tlv_len;
 727                         pieces->inst_evtlog_size =
 728                                         le32_to_cpup((__le32 *)tlv_data);
 729                         break;
 730                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 731                         if (tlv_len != sizeof(u32))
 732                                 goto invalid_tlv_len;
 733                         pieces->inst_errlog_ptr =
 734                                         le32_to_cpup((__le32 *)tlv_data);
 735                         break;
 736                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 737                         if (tlv_len)
 738                                 goto invalid_tlv_len;
 739                         drv->fw.enhance_sensitivity_table = true;
 740                         break;
 741                 case IWL_UCODE_TLV_WOWLAN_INST:
 742                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 743                                      IWL_UCODE_SECTION_INST, tlv_data);
 744                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 745                                      IWL_UCODE_SECTION_INST, tlv_len);
 746                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 747                                        IWL_UCODE_SECTION_INST,
 748                                        IWLAGN_RTC_INST_LOWER_BOUND);
 749                         break;
 750                 case IWL_UCODE_TLV_WOWLAN_DATA:
 751                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 752                                      IWL_UCODE_SECTION_DATA, tlv_data);
 753                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 754                                      IWL_UCODE_SECTION_DATA, tlv_len);
 755                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 756                                        IWL_UCODE_SECTION_DATA,
 757                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 758                         break;
 759                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 760                         if (tlv_len != sizeof(u32))
 761                                 goto invalid_tlv_len;
 762                         capa->standard_phy_calibration_size =
 763                                         le32_to_cpup((__le32 *)tlv_data);
 764                         break;
 765                 case IWL_UCODE_TLV_SEC_RT:
 766                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 767                                             tlv_len);
 768                         drv->fw.type = IWL_FW_MVM;
 769                         break;
 770                 case IWL_UCODE_TLV_SEC_INIT:
 771                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 772                                             tlv_len);
 773                         drv->fw.type = IWL_FW_MVM;
 774                         break;
 775                 case IWL_UCODE_TLV_SEC_WOWLAN:
 776                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 777                                             tlv_len);
 778                         drv->fw.type = IWL_FW_MVM;
 779                         break;
 780                 case IWL_UCODE_TLV_DEF_CALIB:
 781                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 782                                 goto invalid_tlv_len;
 783                         if (iwl_set_default_calib(drv, tlv_data))
 784                                 goto tlv_error;
 785                         break;
 786                 case IWL_UCODE_TLV_PHY_SKU:
 787                         if (tlv_len != sizeof(u32))
 788                                 goto invalid_tlv_len;
 789                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 790                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 791                                                 FW_PHY_CFG_TX_CHAIN) >>
 792                                                 FW_PHY_CFG_TX_CHAIN_POS;
 793                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 794                                                 FW_PHY_CFG_RX_CHAIN) >>
 795                                                 FW_PHY_CFG_RX_CHAIN_POS;
 796                         break;
 797                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 798                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 799                                             tlv_len);
 800                         drv->fw.type = IWL_FW_MVM;
 801                         break;
 802                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 803                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 804                                             tlv_len);
 805                         drv->fw.type = IWL_FW_MVM;
 806                         break;
 807                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 808                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 809                                             tlv_len);
 810                         drv->fw.type = IWL_FW_MVM;
 811                         break;
 812                 case IWL_UCODE_TLV_NUM_OF_CPU:
 813                         if (tlv_len != sizeof(u32))
 814                                 goto invalid_tlv_len;
 815                         num_of_cpus =
 816                                 le32_to_cpup((__le32 *)tlv_data);
 817
 818                         if (num_of_cpus == 2) {
 819                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 820                                         true;
 821                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 822                                         true;
 823                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 824                                         true;
 825                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 826                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 827                                 return -EINVAL;
 828                         }
 829                         break;
 830                 case IWL_UCODE_TLV_CSCHEME:
 831                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 832                                 goto invalid_tlv_len;
 833                         break;
 834                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 835                         if (tlv_len != sizeof(u32))
 836                                 goto invalid_tlv_len;
 837                         capa->n_scan_channels =
 838                                 le32_to_cpup((__le32 *)tlv_data);
 839                         break;
 840                 case IWL_UCODE_TLV_FW_VERSION: {
 841                         __le32 *ptr = (void *)tlv_data;
 842                         u32 major, minor;
 843                         u8 local_comp;
 844
 845                         if (tlv_len != sizeof(u32) * 3)
 846                                 goto invalid_tlv_len;
 847
 848                         major = le32_to_cpup(ptr++);
 849                         minor = le32_to_cpup(ptr++);
 850                         local_comp = le32_to_cpup(ptr);
 851
 852                         if (major >= 35)
 853                                 snprintf(drv->fw.fw_version,
 854                                          sizeof(drv->fw.fw_version),
 855                                         "%u.%08x.%u %s", major, minor,
 856                                         local_comp, iwl_reduced_fw_name(drv));
 857                         else
 858                                 snprintf(drv->fw.fw_version,
 859                                          sizeof(drv->fw.fw_version),
 860                                         "%u.%u.%u %s", major, minor,
 861                                         local_comp, iwl_reduced_fw_name(drv));
 862                         break;
 863                         }
 864                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 865                         struct iwl_fw_dbg_dest_tlv *dest = NULL;
 866                         struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
 867                         u8 mon_mode;
 868
 869                         pieces->dbg_dest_ver = (u8 *)tlv_data;
 870                         if (*pieces->dbg_dest_ver == 1) {
 871                                 dest = (void *)tlv_data;
 872                         } else if (*pieces->dbg_dest_ver == 0) {
 873                                 dest_v1 = (void *)tlv_data;
 874                         } else {
 875                                 IWL_ERR(drv,
 876                                         "The version is %d, and it is invalid\n",
 877                                         *pieces->dbg_dest_ver);
 878                                 break;
 879                         }
 880
 881                         if (pieces->dbg_dest_tlv_init) {
 882                                 IWL_ERR(drv,
 883                                         "dbg destination ignored, already exists\n");
 884                                 break;
 885                         }
 886
 887                         pieces->dbg_dest_tlv_init = true;
 888
 889                         if (dest_v1) {
 890                                 pieces->dbg_dest_tlv_v1 = dest_v1;
 891                                 mon_mode = dest_v1->monitor_mode;
 892                         } else {
 893                                 pieces->dbg_dest_tlv = dest;
 894                                 mon_mode = dest->monitor_mode;
 895                         }
 896
 897                         IWL_INFO(drv, "Found debug destination: %s\n",
 898                                  get_fw_dbg_mode_string(mon_mode));
 899
 900                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
 901                                 tlv_len -
 902                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
 903                                          reg_ops) :
 904                                 tlv_len -
 905                                 offsetof(struct iwl_fw_dbg_dest_tlv,
 906                                          reg_ops);
 907
 908                         drv->fw.dbg.n_dest_reg /=
 909                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
 910
 911                         break;
 912                         }
 913                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 914                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 915
 916                         if (!pieces->dbg_dest_tlv_init) {
 917                                 IWL_ERR(drv,
 918                                         "Ignore dbg config %d - no destination configured\n",
 919                                         conf->id);
 920                                 break;
 921                         }
 922
 923                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
 924                                 IWL_ERR(drv,
 925                                         "Skip unknown configuration: %d\n",
 926                                         conf->id);
 927                                 break;
 928                         }
 929
 930                         if (pieces->dbg_conf_tlv[conf->id]) {
 931                                 IWL_ERR(drv,
 932                                         "Ignore duplicate dbg config %d\n",
 933                                         conf->id);
 934                                 break;
 935                         }
 936
 937                         if (conf->usniffer)
 938                                 usniffer_req = true;
 939
 940                         IWL_INFO(drv, "Found debug configuration: %d\n",
 941                                  conf->id);
 942
 943                         pieces->dbg_conf_tlv[conf->id] = conf;
 944                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 945                         break;
 946                         }
 947                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 948                         struct iwl_fw_dbg_trigger_tlv *trigger =
 949                                 (void *)tlv_data;
 950                         u32 trigger_id = le32_to_cpu(trigger->id);
 951
 952                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
 953                                 IWL_ERR(drv,
 954                                         "Skip unknown trigger: %u\n",
 955                                         trigger->id);
 956                                 break;
 957                         }
 958
 959                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 960                                 IWL_ERR(drv,
 961                                         "Ignore duplicate dbg trigger %u\n",
 962                                         trigger->id);
 963                                 break;
 964                         }
 965
 966                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 967
 968                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 969                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 970                         break;
 971                         }
 972                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
 973                         if (tlv_len != sizeof(u32)) {
 974                                 IWL_ERR(drv,
 975                                         "dbg lst mask size incorrect, skip\n");
 976                                 break;
 977                         }
 978
 979                         drv->fw.dbg.dump_mask =
 980                                 le32_to_cpup((__le32 *)tlv_data);
 981                         break;
 982                         }
 983                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 984                         *usniffer_images = true;
 985                         iwl_store_ucode_sec(pieces, tlv_data,
 986                                             IWL_UCODE_REGULAR_USNIFFER,
 987                                             tlv_len);
 988                         break;
 989                 case IWL_UCODE_TLV_PAGING:
 990                         if (tlv_len != sizeof(u32))
 991                                 goto invalid_tlv_len;
 992                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
 993
 994                         IWL_DEBUG_FW(drv,
 995                                      "Paging: paging enabled (size = %u bytes)\n",
 996                                      paging_mem_size);
 997
 998                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
 999                                 IWL_ERR(drv,
1000                                         "Paging: driver supports up to %lu bytes for paging image\n",
1001                                         MAX_PAGING_IMAGE_SIZE);
1002                                 return -EINVAL;
1003                         }
1004
1005                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1006                                 IWL_ERR(drv,
1007                                         "Paging: image isn't multiple %lu\n",
1008                                         FW_PAGING_SIZE);
1009                                 return -EINVAL;
1010                         }
1011
1012                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1013                                 paging_mem_size;
1014                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1015                         drv->fw.img[usniffer_img].paging_mem_size =
1016                                 paging_mem_size;
1017                         break;
1018                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1019                         /* ignored */
1020                         break;
1021                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1022                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1023                                 (void *)tlv_data;
1024                         size_t size;
1025                         struct iwl_fw_dbg_mem_seg_tlv *n;
1026
1027                         if (tlv_len != (sizeof(*dbg_mem)))
1028                                 goto invalid_tlv_len;
1029
1030                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1031                                        dbg_mem->data_type);
1032
1033                         size = sizeof(*pieces->dbg_mem_tlv) *
1034                                (pieces->n_mem_tlv + 1);
1035                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1036                         if (!n)
1037                                 return -ENOMEM;
1038                         pieces->dbg_mem_tlv = n;
1039                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1040                         pieces->n_mem_tlv++;
1041                         break;
1042                         }
1043                 case IWL_UCODE_TLV_IML: {
1044                         drv->fw.iml_len = tlv_len;
1045                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1046                         if (!drv->fw.iml)
1047                                 return -ENOMEM;
1048                         break;
1049                         }
1050                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1051                         struct {
1052                                 __le32 buf_addr;
1053                                 __le32 buf_size;
1054                         } *recov_info = (void *)tlv_data;
1055
1056                         if (tlv_len != sizeof(*recov_info))
1057                                 goto invalid_tlv_len;
1058                         capa->error_log_addr =
1059                                 le32_to_cpu(recov_info->buf_addr);
1060                         capa->error_log_size =
1061                                 le32_to_cpu(recov_info->buf_size);
1062                         }
1063                         break;
1064                 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1065                         struct {
1066                                 u8 version[32];
1067                                 u8 sha1[20];
1068                         } *fseq_ver = (void *)tlv_data;
1069
1070                         if (tlv_len != sizeof(*fseq_ver))
1071                                 goto invalid_tlv_len;
1072                         IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1073                                  fseq_ver->version);
1074                         }
1075                         break;
1076                 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1077                         if (tlv_len != sizeof(u32))
1078                                 goto invalid_tlv_len;
1079                         if (le32_to_cpup((__le32 *)tlv_data) >
1080                             IWL_MVM_STATION_COUNT_MAX) {
1081                                 IWL_ERR(drv,
1082                                         "%d is an invalid number of station\n",
1083                                         le32_to_cpup((__le32 *)tlv_data));
1084                                 goto tlv_error;
1085                         }
1086                         capa->num_stations =
1087                                 le32_to_cpup((__le32 *)tlv_data);
1088                         break;
1089                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1090                         struct iwl_umac_debug_addrs *dbg_ptrs =
1091                                 (void *)tlv_data;
1092
1093                         if (tlv_len != sizeof(*dbg_ptrs))
1094                                 goto invalid_tlv_len;
1095                         if (drv->trans->trans_cfg->device_family <
1096                             IWL_DEVICE_FAMILY_22000)
1097                                 break;
1098                         drv->trans->dbg.umac_error_event_table =
1099                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1100                                 ~FW_ADDR_CACHE_CONTROL;
1101                         drv->trans->dbg.error_event_table_tlv_status |=
1102                                 IWL_ERROR_EVENT_TABLE_UMAC;
1103                         break;
1104                         }
1105                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1106                         struct iwl_lmac_debug_addrs *dbg_ptrs =
1107                                 (void *)tlv_data;
1108
1109                         if (tlv_len != sizeof(*dbg_ptrs))
1110                                 goto invalid_tlv_len;
1111                         if (drv->trans->trans_cfg->device_family <
1112                             IWL_DEVICE_FAMILY_22000)
1113                                 break;
1114                         drv->trans->dbg.lmac_error_event_table[0] =
1115                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1116                                 ~FW_ADDR_CACHE_CONTROL;
1117                         drv->trans->dbg.error_event_table_tlv_status |=
1118                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1119                         break;
1120                         }
1121                 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1122                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1123                 case IWL_UCODE_TLV_TYPE_HCMD:
1124                 case IWL_UCODE_TLV_TYPE_REGIONS:
1125                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1126                         if (iwlwifi_mod_params.enable_ini)
1127                                 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1128                         break;
1129                 case IWL_UCODE_TLV_CMD_VERSIONS:
1130                         if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1131                                 IWL_ERR(drv,
1132                                         "Invalid length for command versions: %u\n",
1133                                         tlv_len);
1134                                 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1135                                 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1136                         }
1137                         if (WARN_ON(capa->cmd_versions))
1138                                 return -EINVAL;
1139                         capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1140                                                      GFP_KERNEL);
1141                         if (!capa->cmd_versions)
1142                                 return -ENOMEM;
1143                         capa->n_cmd_versions =
1144                                 tlv_len / sizeof(struct iwl_fw_cmd_version);
1145                         break;
1146                 default:
1147                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1148                         break;
1149                 }
1150         }
1151
1152         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1153             usniffer_req && !*usniffer_images) {
1154                 IWL_ERR(drv,
1155                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1156                 return -EINVAL;
1157         }
1158
1159         if (len) {
1160                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1161                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1162                 return -EINVAL;
1163         }
1164
1165         return 0;
1166
1167  invalid_tlv_len:
1168         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1169  tlv_error:
1170         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1171
1172         return -EINVAL;
1173 }
1174
1175 static int iwl_alloc_ucode(struct iwl_drv *drv,
1176                            struct iwl_firmware_pieces *pieces,
1177                            enum iwl_ucode_type type)
1178 {
1179         int i;
1180         struct fw_desc *sec;
1181
1182         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1183         if (!sec)
1184                 return -ENOMEM;
1185         drv->fw.img[type].sec = sec;
1186         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1187
1188         for (i = 0; i < pieces->img[type].sec_counter; i++)
1189                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1190                         return -ENOMEM;
1191
1192         return 0;
1193 }
1194
1195 static int validate_sec_sizes(struct iwl_drv *drv,
1196                               struct iwl_firmware_pieces *pieces,
1197                               const struct iwl_cfg *cfg)
1198 {
1199         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1200                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1201                              IWL_UCODE_SECTION_INST));
1202         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1203                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1204                              IWL_UCODE_SECTION_DATA));
1205         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1206                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1207         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1208                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1209
1210         /* Verify that uCode images will fit in card's SRAM. */
1211         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1212             cfg->max_inst_size) {
1213                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1214                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1215                                      IWL_UCODE_SECTION_INST));
1216                 return -1;
1217         }
1218
1219         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1220             cfg->max_data_size) {
1221                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1222                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1223                                      IWL_UCODE_SECTION_DATA));
1224                 return -1;
1225         }
1226
1227         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1228              cfg->max_inst_size) {
1229                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1230                         get_sec_size(pieces, IWL_UCODE_INIT,
1231                                      IWL_UCODE_SECTION_INST));
1232                 return -1;
1233         }
1234
1235         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1236             cfg->max_data_size) {
1237                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1238                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1239                                      IWL_UCODE_SECTION_DATA));
1240                 return -1;
1241         }
1242         return 0;
1243 }
1244
1245 static struct iwl_op_mode *
1246 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1247 {
1248         const struct iwl_op_mode_ops *ops = op->ops;
1249         struct dentry *dbgfs_dir = NULL;
1250         struct iwl_op_mode *op_mode = NULL;
1251
1252 #ifdef CONFIG_IWLWIFI_DEBUGFS
1253         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1254                                                 drv->dbgfs_drv);
1255         dbgfs_dir = drv->dbgfs_op_mode;
1256 #endif
1257
1258         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1259
1260 #ifdef CONFIG_IWLWIFI_DEBUGFS
1261         if (!op_mode) {
1262                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1263                 drv->dbgfs_op_mode = NULL;
1264         }
1265 #endif
1266
1267         return op_mode;
1268 }
1269
1270 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1271 {
1272         /* op_mode can be NULL if its start failed */
1273         if (drv->op_mode) {
1274                 iwl_op_mode_stop(drv->op_mode);
1275                 drv->op_mode = NULL;
1276
1277 #ifdef CONFIG_IWLWIFI_DEBUGFS
1278                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1279                 drv->dbgfs_op_mode = NULL;
1280 #endif
1281         }
1282 }
1283
1284 /*
1285  * iwl_req_fw_callback - callback when firmware was loaded
1286  *
1287  * If loaded successfully, copies the firmware into buffers
1288  * for the card to fetch (via DMA).
1289  */
1290 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1291 {
1292         struct iwl_drv *drv = context;
1293         struct iwl_fw *fw = &drv->fw;
1294         struct iwl_ucode_header *ucode;
1295         struct iwlwifi_opmode_table *op;
1296         int err;
1297         struct iwl_firmware_pieces *pieces;
1298         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1299         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1300         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1301         u32 api_ver;
1302         int i;
1303         bool load_module = false;
1304         bool usniffer_images = false;
1305
1306         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1307         fw->ucode_capa.standard_phy_calibration_size =
1308                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1309         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1310         fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1311         /* dump all fw memory areas by default */
1312         fw->dbg.dump_mask = 0xffffffff;
1313
1314         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1315         if (!pieces)
1316                 goto out_free_fw;
1317
1318         if (!ucode_raw)
1319                 goto try_again;
1320
1321         IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1322                           drv->firmware_name, ucode_raw->size);
1323
1324         /* Make sure that we got at least the API version number */
1325         if (ucode_raw->size < 4) {
1326                 IWL_ERR(drv, "File size way too small!\n");
1327                 goto try_again;
1328         }
1329
1330         /* Data from ucode file:  header followed by uCode images */
1331         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1332
1333         if (ucode->ver)
1334                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1335         else
1336                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1337                                              &fw->ucode_capa, &usniffer_images);
1338
1339         if (err)
1340                 goto try_again;
1341
1342         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1343                 api_ver = drv->fw.ucode_ver;
1344         else
1345                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1346
1347         /*
1348          * api_ver should match the api version forming part of the
1349          * firmware filename ... but we don't check for that and only rely
1350          * on the API version read from firmware header from here on forward
1351          */
1352         if (api_ver < api_min || api_ver > api_max) {
1353                 IWL_ERR(drv,
1354                         "Driver unable to support your firmware API. "
1355                         "Driver supports v%u, firmware is v%u.\n",
1356                         api_max, api_ver);
1357                 goto try_again;
1358         }
1359
1360         /*
1361          * In mvm uCode there is no difference between data and instructions
1362          * sections.
1363          */
1364         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1365                                                          drv->trans->cfg))
1366                 goto try_again;
1367
1368         /* Allocate ucode buffers for card's bus-master loading ... */
1369
1370         /* Runtime instructions and 2 copies of data:
1371          * 1) unmodified from disk
1372          * 2) backup cache for save/restore during power-downs
1373          */
1374         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1375                 if (iwl_alloc_ucode(drv, pieces, i))
1376                         goto out_free_fw;
1377
1378         if (pieces->dbg_dest_tlv_init) {
1379                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1380                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1381                         drv->fw.dbg.n_dest_reg;
1382
1383                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1384
1385                 if (!drv->fw.dbg.dest_tlv)
1386                         goto out_free_fw;
1387
1388                 if (*pieces->dbg_dest_ver == 0) {
1389                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1390                                dbg_dest_size);
1391                 } else {
1392                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1393                                 drv->fw.dbg.dest_tlv;
1394
1395                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1396                         dest_tlv->monitor_mode =
1397                                 pieces->dbg_dest_tlv->monitor_mode;
1398                         dest_tlv->size_power =
1399                                 pieces->dbg_dest_tlv->size_power;
1400                         dest_tlv->wrap_count =
1401                                 pieces->dbg_dest_tlv->wrap_count;
1402                         dest_tlv->write_ptr_reg =
1403                                 pieces->dbg_dest_tlv->write_ptr_reg;
1404                         dest_tlv->base_shift =
1405                                 pieces->dbg_dest_tlv->base_shift;
1406                         memcpy(dest_tlv->reg_ops,
1407                                pieces->dbg_dest_tlv->reg_ops,
1408                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1409                                drv->fw.dbg.n_dest_reg);
1410
1411                         /* In version 1 of the destination tlv, which is
1412                          * relevant for internal buffer exclusively,
1413                          * the base address is part of given with the length
1414                          * of the buffer, and the size shift is give instead of
1415                          * end shift. We now store these values in base_reg,
1416                          * and end shift, and when dumping the data we'll
1417                          * manipulate it for extracting both the length and
1418                          * base address */
1419                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1420                         dest_tlv->end_shift =
1421                                 pieces->dbg_dest_tlv->size_shift;
1422                 }
1423         }
1424
1425         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1426                 if (pieces->dbg_conf_tlv[i]) {
1427                         drv->fw.dbg.conf_tlv[i] =
1428                                 kmemdup(pieces->dbg_conf_tlv[i],
1429                                         pieces->dbg_conf_tlv_len[i],
1430                                         GFP_KERNEL);
1431                         if (!drv->fw.dbg.conf_tlv[i])
1432                                 goto out_free_fw;
1433                 }
1434         }
1435
1436         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1437
1438         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1439                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1440         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1441         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1442                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1443         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1444                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1445         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1446                 sizeof(struct iwl_fw_dbg_trigger_stats);
1447         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1448                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1449         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1450                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1451         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1452                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1453         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1454                 sizeof(struct iwl_fw_dbg_trigger_ba);
1455         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1456                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1457
1458         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1459                 if (pieces->dbg_trigger_tlv[i]) {
1460                         /*
1461                          * If the trigger isn't long enough, WARN and exit.
1462                          * Someone is trying to debug something and he won't
1463                          * be able to catch the bug he is trying to chase.
1464                          * We'd better be noisy to be sure he knows what's
1465                          * going on.
1466                          */
1467                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1468                                     (trigger_tlv_sz[i] +
1469                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1470                                 goto out_free_fw;
1471                         drv->fw.dbg.trigger_tlv_len[i] =
1472                                 pieces->dbg_trigger_tlv_len[i];
1473                         drv->fw.dbg.trigger_tlv[i] =
1474                                 kmemdup(pieces->dbg_trigger_tlv[i],
1475                                         drv->fw.dbg.trigger_tlv_len[i],
1476                                         GFP_KERNEL);
1477                         if (!drv->fw.dbg.trigger_tlv[i])
1478                                 goto out_free_fw;
1479                 }
1480         }
1481
1482         /* Now that we can no longer fail, copy information */
1483
1484         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1485         pieces->dbg_mem_tlv = NULL;
1486         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1487
1488         /*
1489          * The (size - 16) / 12 formula is based on the information recorded
1490          * for each event, which is of mode 1 (including timestamp) for all
1491          * new microcodes that include this information.
1492          */
1493         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1494         if (pieces->init_evtlog_size)
1495                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1496         else
1497                 fw->init_evtlog_size =
1498                         drv->trans->trans_cfg->base_params->max_event_log_size;
1499         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1500         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1501         if (pieces->inst_evtlog_size)
1502                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1503         else
1504                 fw->inst_evtlog_size =
1505                         drv->trans->trans_cfg->base_params->max_event_log_size;
1506         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1507
1508         /*
1509          * figure out the offset of chain noise reset and gain commands
1510          * base on the size of standard phy calibration commands table size
1511          */
1512         if (fw->ucode_capa.standard_phy_calibration_size >
1513             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1514                 fw->ucode_capa.standard_phy_calibration_size =
1515                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1516
1517         /* We have our copies now, allow OS release its copies */
1518         release_firmware(ucode_raw);
1519
1520         mutex_lock(&iwlwifi_opmode_table_mtx);
1521         switch (fw->type) {
1522         case IWL_FW_DVM:
1523                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1524                 break;
1525         default:
1526                 WARN(1, "Invalid fw type %d\n", fw->type);
1527                 fallthrough;
1528         case IWL_FW_MVM:
1529                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1530                 break;
1531         }
1532
1533         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1534                  drv->fw.fw_version, op->name);
1535
1536         iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1537
1538         /* add this device to the list of devices using this op_mode */
1539         list_add_tail(&drv->list, &op->drv);
1540
1541         if (op->ops) {
1542                 drv->op_mode = _iwl_op_mode_start(drv, op);
1543
1544                 if (!drv->op_mode) {
1545                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1546                         goto out_unbind;
1547                 }
1548         } else {
1549                 load_module = true;
1550         }
1551         mutex_unlock(&iwlwifi_opmode_table_mtx);
1552
1553         /*
1554          * Complete the firmware request last so that
1555          * a driver unbind (stop) doesn't run while we
1556          * are doing the start() above.
1557          */
1558         complete(&drv->request_firmware_complete);
1559
1560         /*
1561          * Load the module last so we don't block anything
1562          * else from proceeding if the module fails to load
1563          * or hangs loading.
1564          */
1565         if (load_module) {
1566                 request_module("%s", op->name);
1567 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1568                 if (err)
1569                         IWL_ERR(drv,
1570                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1571                                 op->name, err);
1572 #endif
1573         }
1574         goto free;
1575
1576  try_again:
1577         /* try next, if any */
1578         release_firmware(ucode_raw);
1579         if (iwl_request_firmware(drv, false))
1580                 goto out_unbind;
1581         goto free;
1582
1583  out_free_fw:
1584         release_firmware(ucode_raw);
1585  out_unbind:
1586         complete(&drv->request_firmware_complete);
1587         device_release_driver(drv->trans->dev);
1588  free:
1589         if (pieces) {
1590                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1591                         kfree(pieces->img[i].sec);
1592                 kfree(pieces->dbg_mem_tlv);
1593                 kfree(pieces);
1594         }
1595 }
1596
1597 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1598 {
1599         struct iwl_drv *drv;
1600         int ret;
1601
1602         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1603         if (!drv) {
1604                 ret = -ENOMEM;
1605                 goto err;
1606         }
1607
1608         drv->trans = trans;
1609         drv->dev = trans->dev;
1610
1611         init_completion(&drv->request_firmware_complete);
1612         INIT_LIST_HEAD(&drv->list);
1613
1614 #ifdef CONFIG_IWLWIFI_DEBUGFS
1615         /* Create the device debugfs entries. */
1616         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1617                                             iwl_dbgfs_root);
1618
1619         /* Create transport layer debugfs dir */
1620         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1621 #endif
1622
1623         drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1624
1625         ret = iwl_request_firmware(drv, true);
1626         if (ret) {
1627                 IWL_ERR(trans, "Couldn't request the fw\n");
1628                 goto err_fw;
1629         }
1630
1631         return drv;
1632
1633 err_fw:
1634 #ifdef CONFIG_IWLWIFI_DEBUGFS
1635         debugfs_remove_recursive(drv->dbgfs_drv);
1636         iwl_dbg_tlv_free(drv->trans);
1637 #endif
1638         kfree(drv);
1639 err:
1640         return ERR_PTR(ret);
1641 }
1642
1643 void iwl_drv_stop(struct iwl_drv *drv)
1644 {
1645         wait_for_completion(&drv->request_firmware_complete);
1646
1647         _iwl_op_mode_stop(drv);
1648
1649         iwl_dealloc_ucode(drv);
1650
1651         mutex_lock(&iwlwifi_opmode_table_mtx);
1652         /*
1653          * List is empty (this item wasn't added)
1654          * when firmware loading failed -- in that
1655          * case we can't remove it from any list.
1656          */
1657         if (!list_empty(&drv->list))
1658                 list_del(&drv->list);
1659         mutex_unlock(&iwlwifi_opmode_table_mtx);
1660
1661 #ifdef CONFIG_IWLWIFI_DEBUGFS
1662         drv->trans->ops->debugfs_cleanup(drv->trans);
1663
1664         debugfs_remove_recursive(drv->dbgfs_drv);
1665 #endif
1666
1667         iwl_dbg_tlv_free(drv->trans);
1668
1669         kfree(drv);
1670 }
1671
1672
1673 /* shared module parameters */
1674 struct iwl_mod_params iwlwifi_mod_params = {
1675         .fw_restart = true,
1676         .bt_coex_active = true,
1677         .power_level = IWL_POWER_INDEX_1,
1678         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1679         .enable_ini = true,
1680         /* the rest are 0 by default */
1681 };
1682 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1683
1684 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1685 {
1686         int i;
1687         struct iwl_drv *drv;
1688         struct iwlwifi_opmode_table *op;
1689
1690         mutex_lock(&iwlwifi_opmode_table_mtx);
1691         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1692                 op = &iwlwifi_opmode_table[i];
1693                 if (strcmp(op->name, name))
1694                         continue;
1695                 op->ops = ops;
1696                 /* TODO: need to handle exceptional case */
1697                 list_for_each_entry(drv, &op->drv, list)
1698                         drv->op_mode = _iwl_op_mode_start(drv, op);
1699
1700                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1701                 return 0;
1702         }
1703         mutex_unlock(&iwlwifi_opmode_table_mtx);
1704         return -EIO;
1705 }
1706 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1707
1708 void iwl_opmode_deregister(const char *name)
1709 {
1710         int i;
1711         struct iwl_drv *drv;
1712
1713         mutex_lock(&iwlwifi_opmode_table_mtx);
1714         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1715                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1716                         continue;
1717                 iwlwifi_opmode_table[i].ops = NULL;
1718
1719                 /* call the stop routine for all devices */
1720                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1721                         _iwl_op_mode_stop(drv);
1722
1723                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1724                 return;
1725         }
1726         mutex_unlock(&iwlwifi_opmode_table_mtx);
1727 }
1728 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1729
1730 static int __init iwl_drv_init(void)
1731 {
1732         int i, err;
1733
1734         mutex_init(&iwlwifi_opmode_table_mtx);
1735
1736         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1737                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1738
1739         pr_info(DRV_DESCRIPTION "\n");
1740
1741 #ifdef CONFIG_IWLWIFI_DEBUGFS
1742         /* Create the root of iwlwifi debugfs subsystem. */
1743         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1744 #endif
1745
1746         err = iwl_pci_register_driver();
1747         if (err)
1748                 goto cleanup_debugfs;
1749
1750         return 0;
1751
1752 cleanup_debugfs:
1753 #ifdef CONFIG_IWLWIFI_DEBUGFS
1754         debugfs_remove_recursive(iwl_dbgfs_root);
1755 #endif
1756         return err;
1757 }
1758 module_init(iwl_drv_init);
1759
1760 static void __exit iwl_drv_exit(void)
1761 {
1762         iwl_pci_unregister_driver();
1763
1764 #ifdef CONFIG_IWLWIFI_DEBUGFS
1765         debugfs_remove_recursive(iwl_dbgfs_root);
1766 #endif
1767 }
1768 module_exit(iwl_drv_exit);
1769
1770 #ifdef CONFIG_IWLWIFI_DEBUG
1771 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1772 MODULE_PARM_DESC(debug, "debug output mask");
1773 #endif
1774
1775 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1776 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1777 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1778 MODULE_PARM_DESC(11n_disable,
1779         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1780 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1781 MODULE_PARM_DESC(amsdu_size,
1782                  "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1783                  "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1784 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1785 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1786
1787 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1788 MODULE_PARM_DESC(nvm_file, "NVM file name");
1789
1790 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1791 MODULE_PARM_DESC(uapsd_disable,
1792                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1793 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1794                    bool, S_IRUGO | S_IWUSR);
1795 MODULE_PARM_DESC(enable_ini,
1796                  "Enable debug INI TLV FW debug infrastructure (default: true");
1797
1798 /*
1799  * set bt_coex_active to true, uCode will do kill/defer
1800  * every time the priority line is asserted (BT is sending signals on the
1801  * priority line in the PCIx).
1802  * set bt_coex_active to false, uCode will ignore the BT activity and
1803  * perform the normal operation
1804  *
1805  * User might experience transmit issue on some platform due to WiFi/BT
1806  * co-exist problem. The possible behaviors are:
1807  *   Able to scan and finding all the available AP
1808  *   Not able to associate with any AP
1809  * On those platforms, WiFi communication can be restored by set
1810  * "bt_coex_active" module parameter to "false"
1811  *
1812  * default: bt_coex_active = true (BT_COEX_ENABLE)
1813  */
1814 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1815                    bool, 0444);
1816 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1817
1818 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1819 MODULE_PARM_DESC(led_mode, "0=system default, "
1820                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1821
1822 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1823 MODULE_PARM_DESC(power_save,
1824                  "enable WiFi power management (default: disable)");
1825
1826 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1827 MODULE_PARM_DESC(power_level,
1828                  "default power save level (range from 1 - 5, default: 1)");
1829
1830 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1831 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1832
1833 module_param_named(remove_when_gone,
1834                    iwlwifi_mod_params.remove_when_gone, bool,
1835                    0444);
1836 MODULE_PARM_DESC(remove_when_gone,
1837                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1838
1839 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1840                    S_IRUGO);
1841 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");