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, 2018-2021 Intel Corporation
   4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
   5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
   6  */
   7 #include <linux/completion.h>
   8 #include <linux/dma-mapping.h>
   9 #include <linux/firmware.h>
  10 #include <linux/module.h>
  11 #include <linux/vmalloc.h>
  12
  13 #include "iwl-drv.h"
  14 #include "iwl-csr.h"
  15 #include "iwl-debug.h"
  16 #include "iwl-trans.h"
  17 #include "iwl-op-mode.h"
  18 #include "iwl-agn-hw.h"
  19 #include "fw/img.h"
  20 #include "iwl-dbg-tlv.h"
  21 #include "iwl-config.h"
  22 #include "iwl-modparams.h"
  23 #include "fw/api/alive.h"
  24 #include "fw/api/mac.h"
  25
  26 /******************************************************************************
  27  *
  28  * module boiler plate
  29  *
  30  ******************************************************************************/
  31
  32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  34 MODULE_LICENSE("GPL");
  35
  36 #ifdef CONFIG_IWLWIFI_DEBUGFS
  37 static struct dentry *iwl_dbgfs_root;
  38 #endif
  39
  40 /**
  41  * struct iwl_drv - drv common data
  42  * @list: list of drv structures using this opmode
  43  * @fw: the iwl_fw structure
  44  * @op_mode: the running op_mode
  45  * @trans: transport layer
  46  * @dev: for debug prints only
  47  * @fw_index: firmware revision to try loading
  48  * @firmware_name: composite filename of ucode file to load
  49  * @request_firmware_complete: the firmware has been obtained from user space
  50  * @dbgfs_drv: debugfs root directory entry
  51  * @dbgfs_trans: debugfs transport directory entry
  52  * @dbgfs_op_mode: debugfs op_mode directory entry
  53  */
  54 struct iwl_drv {
  55         struct list_head list;
  56         struct iwl_fw fw;
  57
  58         struct iwl_op_mode *op_mode;
  59         struct iwl_trans *trans;
  60         struct device *dev;
  61
  62         int fw_index;                   /* firmware we're trying to load */
  63         char firmware_name[64];         /* name of firmware file to load */
  64
  65         struct completion request_firmware_complete;
  66
  67 #ifdef CONFIG_IWLWIFI_DEBUGFS
  68         struct dentry *dbgfs_drv;
  69         struct dentry *dbgfs_trans;
  70         struct dentry *dbgfs_op_mode;
  71 #endif
  72 };
  73
  74 enum {
  75         DVM_OP_MODE,
  76         MVM_OP_MODE,
  77 };
  78
  79 /* Protects the table contents, i.e. the ops pointer & drv list */
  80 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
  81 static struct iwlwifi_opmode_table {
  82         const char *name;                       /* name: iwldvm, iwlmvm, etc */
  83         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
  84         struct list_head drv;           /* list of devices using this op_mode */
  85 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
  86         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
  87         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
  88 };
  89
  90 #define IWL_DEFAULT_SCAN_CHANNELS 40
  91
  92 /*
  93  * struct fw_sec: Just for the image parsing process.
  94  * For the fw storage we are using struct fw_desc.
  95  */
  96 struct fw_sec {
  97         const void *data;               /* the sec data */
  98         size_t size;                    /* section size */
  99         u32 offset;                     /* offset of writing in the device */
 100 };
 101
 102 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 103 {
 104         vfree(desc->data);
 105         desc->data = NULL;
 106         desc->len = 0;
 107 }
 108
 109 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 110 {
 111         int i;
 112         for (i = 0; i < img->num_sec; i++)
 113                 iwl_free_fw_desc(drv, &img->sec[i]);
 114         kfree(img->sec);
 115 }
 116
 117 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 118 {
 119         int i;
 120
 121         kfree(drv->fw.dbg.dest_tlv);
 122         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
 123                 kfree(drv->fw.dbg.conf_tlv[i]);
 124         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
 125                 kfree(drv->fw.dbg.trigger_tlv[i]);
 126         kfree(drv->fw.dbg.mem_tlv);
 127         kfree(drv->fw.iml);
 128         kfree(drv->fw.ucode_capa.cmd_versions);
 129         kfree(drv->fw.phy_integration_ver);
 130         kfree(drv->trans->dbg.pc_data);
 131
 132         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 133                 iwl_free_fw_img(drv, drv->fw.img + i);
 134
 135         /* clear the data for the aborted load case */
 136         memset(&drv->fw, 0, sizeof(drv->fw));
 137 }
 138
 139 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 140                              struct fw_sec *sec)
 141 {
 142         void *data;
 143
 144         desc->data = NULL;
 145
 146         if (!sec || !sec->size)
 147                 return -EINVAL;
 148
 149         data = vmalloc(sec->size);
 150         if (!data)
 151                 return -ENOMEM;
 152
 153         desc->len = sec->size;
 154         desc->offset = sec->offset;
 155         memcpy(data, sec->data, desc->len);
 156         desc->data = data;
 157
 158         return 0;
 159 }
 160
 161 static inline char iwl_drv_get_step(int step)
 162 {
 163         if (step == SILICON_Z_STEP)
 164                 return 'z';
 165         return 'a' + step;
 166 }
 167
 168 const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
 169 {
 170         char mac_step, rf_step;
 171         const char *rf, *cdb;
 172
 173         if (trans->cfg->fw_name_pre)
 174                 return trans->cfg->fw_name_pre;
 175
 176         if (WARN_ON(!trans->cfg->fw_name_mac))
 177                 return "unconfigured-";
 178
 179         mac_step = iwl_drv_get_step(trans->hw_rev_step);
 180
 181         switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
 182         case IWL_CFG_RF_TYPE_HR1:
 183         case IWL_CFG_RF_TYPE_HR2:
 184                 rf = "hr";
 185                 break;
 186         case IWL_CFG_RF_TYPE_GF:
 187                 rf = "gf";
 188                 break;
 189         case IWL_CFG_RF_TYPE_MR:
 190                 rf = "mr";
 191                 break;
 192         case IWL_CFG_RF_TYPE_MS:
 193                 rf = "ms";
 194                 break;
 195         case IWL_CFG_RF_TYPE_FM:
 196                 rf = "fm";
 197                 break;
 198         case IWL_CFG_RF_TYPE_WH:
 199                 rf = "wh";
 200                 break;
 201         default:
 202                 return "unknown-rf-";
 203         }
 204
 205         cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
 206
 207         rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
 208
 209         scnprintf(buf, FW_NAME_PRE_BUFSIZE,
 210                   "iwlwifi-%s-%c0-%s%s-%c0",
 211                   trans->cfg->fw_name_mac, mac_step,
 212                   rf, cdb, rf_step);
 213
 214         return buf;
 215 }
 216 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
 217
 218 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 219                                 void *context);
 220
 221 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 222 {
 223         const struct iwl_cfg *cfg = drv->trans->cfg;
 224         char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
 225         const char *fw_name_pre;
 226
 227         if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 228             (drv->trans->hw_rev_step != SILICON_B_STEP &&
 229              drv->trans->hw_rev_step != SILICON_C_STEP)) {
 230                 IWL_ERR(drv,
 231                         "Only HW steps B and C are currently supported (0x%0x)\n",
 232                         drv->trans->hw_rev);
 233                 return -EINVAL;
 234         }
 235
 236         fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
 237
 238         if (first)
 239                 drv->fw_index = cfg->ucode_api_max;
 240         else
 241                 drv->fw_index--;
 242
 243         if (drv->fw_index < cfg->ucode_api_min) {
 244                 IWL_ERR(drv, "no suitable firmware found!\n");
 245
 246                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 247                         IWL_ERR(drv, "%s%d is required\n", fw_name_pre,
 248                                 cfg->ucode_api_max);
 249                 } else {
 250                         IWL_ERR(drv, "minimum version required: %s%d\n",
 251                                 fw_name_pre, cfg->ucode_api_min);
 252                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 253                                 fw_name_pre, cfg->ucode_api_max);
 254                 }
 255
 256                 IWL_ERR(drv,
 257                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 258                 return -ENOENT;
 259         }
 260
 261         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%d.ucode",
 262                  fw_name_pre, drv->fw_index);
 263
 264         IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
 265                           drv->firmware_name);
 266
 267         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 268                                        drv->trans->dev,
 269                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 270 }
 271
 272 struct fw_img_parsing {
 273         struct fw_sec *sec;
 274         int sec_counter;
 275 };
 276
 277 /*
 278  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 279  */
 280 struct fw_sec_parsing {
 281         __le32 offset;
 282         const u8 data[];
 283 } __packed;
 284
 285 /**
 286  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 287  *
 288  * @ucode_type: the uCode to which the following default calib relates.
 289  * @calib: default calibrations.
 290  */
 291 struct iwl_tlv_calib_data {
 292         __le32 ucode_type;
 293         struct iwl_tlv_calib_ctrl calib;
 294 } __packed;
 295
 296 struct iwl_firmware_pieces {
 297         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 298
 299         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 300         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 301
 302         /* FW debug data parsed for driver usage */
 303         bool dbg_dest_tlv_init;
 304         const u8 *dbg_dest_ver;
 305         union {
 306                 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 307                 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 308         };
 309         const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 310         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 311         const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 312         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 313         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 314         size_t n_mem_tlv;
 315 };
 316
 317 /*
 318  * These functions are just to extract uCode section data from the pieces
 319  * structure.
 320  */
 321 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 322                               enum iwl_ucode_type type,
 323                               int  sec)
 324 {
 325         return &pieces->img[type].sec[sec];
 326 }
 327
 328 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 329                            enum iwl_ucode_type type,
 330                            int sec)
 331 {
 332         struct fw_img_parsing *img = &pieces->img[type];
 333         struct fw_sec *sec_memory;
 334         int size = sec + 1;
 335         size_t alloc_size = sizeof(*img->sec) * size;
 336
 337         if (img->sec && img->sec_counter >= size)
 338                 return;
 339
 340         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 341         if (!sec_memory)
 342                 return;
 343
 344         img->sec = sec_memory;
 345         img->sec_counter = size;
 346 }
 347
 348 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 349                          enum iwl_ucode_type type,
 350                          int sec,
 351                          const void *data)
 352 {
 353         alloc_sec_data(pieces, type, sec);
 354
 355         pieces->img[type].sec[sec].data = data;
 356 }
 357
 358 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 359                          enum iwl_ucode_type type,
 360                          int sec,
 361                          size_t size)
 362 {
 363         alloc_sec_data(pieces, type, sec);
 364
 365         pieces->img[type].sec[sec].size = size;
 366 }
 367
 368 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 369                            enum iwl_ucode_type type,
 370                            int sec)
 371 {
 372         return pieces->img[type].sec[sec].size;
 373 }
 374
 375 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 376                            enum iwl_ucode_type type,
 377                            int sec,
 378                            u32 offset)
 379 {
 380         alloc_sec_data(pieces, type, sec);
 381
 382         pieces->img[type].sec[sec].offset = offset;
 383 }
 384
 385 /*
 386  * Gets uCode section from tlv.
 387  */
 388 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 389                                const void *data, enum iwl_ucode_type type,
 390                                int size)
 391 {
 392         struct fw_img_parsing *img;
 393         struct fw_sec *sec;
 394         const struct fw_sec_parsing *sec_parse;
 395         size_t alloc_size;
 396
 397         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 398                 return -1;
 399
 400         sec_parse = (const struct fw_sec_parsing *)data;
 401
 402         img = &pieces->img[type];
 403
 404         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 405         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 406         if (!sec)
 407                 return -ENOMEM;
 408         img->sec = sec;
 409
 410         sec = &img->sec[img->sec_counter];
 411
 412         sec->offset = le32_to_cpu(sec_parse->offset);
 413         sec->data = sec_parse->data;
 414         sec->size = size - sizeof(sec_parse->offset);
 415
 416         ++img->sec_counter;
 417
 418         return 0;
 419 }
 420
 421 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 422 {
 423         const struct iwl_tlv_calib_data *def_calib =
 424                                         (const struct iwl_tlv_calib_data *)data;
 425         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 426         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 427                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 428                         ucode_type);
 429                 return -EINVAL;
 430         }
 431         drv->fw.default_calib[ucode_type].flow_trigger =
 432                 def_calib->calib.flow_trigger;
 433         drv->fw.default_calib[ucode_type].event_trigger =
 434                 def_calib->calib.event_trigger;
 435
 436         return 0;
 437 }
 438
 439 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 440                                     struct iwl_ucode_capabilities *capa)
 441 {
 442         const struct iwl_ucode_api *ucode_api = (const void *)data;
 443         u32 api_index = le32_to_cpu(ucode_api->api_index);
 444         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 445         int i;
 446
 447         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 448                 IWL_WARN(drv,
 449                          "api flags index %d larger than supported by driver\n",
 450                          api_index);
 451                 return;
 452         }
 453
 454         for (i = 0; i < 32; i++) {
 455                 if (api_flags & BIT(i))
 456                         __set_bit(i + 32 * api_index, capa->_api);
 457         }
 458 }
 459
 460 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 461                                        struct iwl_ucode_capabilities *capa)
 462 {
 463         const struct iwl_ucode_capa *ucode_capa = (const void *)data;
 464         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 465         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 466         int i;
 467
 468         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 469                 IWL_WARN(drv,
 470                          "capa flags index %d larger than supported by driver\n",
 471                          api_index);
 472                 return;
 473         }
 474
 475         for (i = 0; i < 32; i++) {
 476                 if (api_flags & BIT(i))
 477                         __set_bit(i + 32 * api_index, capa->_capa);
 478         }
 479 }
 480
 481 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
 482 {
 483         const char *name = drv->firmware_name;
 484
 485         if (strncmp(name, "iwlwifi-", 8) == 0)
 486                 name += 8;
 487
 488         return name;
 489 }
 490
 491 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 492                                     const struct firmware *ucode_raw,
 493                                     struct iwl_firmware_pieces *pieces)
 494 {
 495         const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
 496         u32 api_ver, hdr_size, build;
 497         char buildstr[25];
 498         const u8 *src;
 499
 500         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 501         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 502
 503         switch (api_ver) {
 504         default:
 505                 hdr_size = 28;
 506                 if (ucode_raw->size < hdr_size) {
 507                         IWL_ERR(drv, "File size too small!\n");
 508                         return -EINVAL;
 509                 }
 510                 build = le32_to_cpu(ucode->u.v2.build);
 511                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 512                              le32_to_cpu(ucode->u.v2.inst_size));
 513                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 514                              le32_to_cpu(ucode->u.v2.data_size));
 515                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 516                              le32_to_cpu(ucode->u.v2.init_size));
 517                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 518                              le32_to_cpu(ucode->u.v2.init_data_size));
 519                 src = ucode->u.v2.data;
 520                 break;
 521         case 0:
 522         case 1:
 523         case 2:
 524                 hdr_size = 24;
 525                 if (ucode_raw->size < hdr_size) {
 526                         IWL_ERR(drv, "File size too small!\n");
 527                         return -EINVAL;
 528                 }
 529                 build = 0;
 530                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 531                              le32_to_cpu(ucode->u.v1.inst_size));
 532                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 533                              le32_to_cpu(ucode->u.v1.data_size));
 534                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 535                              le32_to_cpu(ucode->u.v1.init_size));
 536                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 537                              le32_to_cpu(ucode->u.v1.init_data_size));
 538                 src = ucode->u.v1.data;
 539                 break;
 540         }
 541
 542         if (build)
 543                 sprintf(buildstr, " build %u", build);
 544         else
 545                 buildstr[0] = '\0';
 546
 547         snprintf(drv->fw.fw_version,
 548                  sizeof(drv->fw.fw_version),
 549                  "%u.%u.%u.%u%s %s",
 550                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 551                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 552                  IWL_UCODE_API(drv->fw.ucode_ver),
 553                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 554                  buildstr, iwl_reduced_fw_name(drv));
 555
 556         /* Verify size of file vs. image size info in file's header */
 557
 558         if (ucode_raw->size != hdr_size +
 559             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 560             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 561             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 562             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 563
 564                 IWL_ERR(drv,
 565                         "uCode file size %d does not match expected size\n",
 566                         (int)ucode_raw->size);
 567                 return -EINVAL;
 568         }
 569
 570
 571         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 572         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 573         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 574                        IWLAGN_RTC_INST_LOWER_BOUND);
 575         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 576         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 577         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 578                        IWLAGN_RTC_DATA_LOWER_BOUND);
 579         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 580         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 581         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 582                        IWLAGN_RTC_INST_LOWER_BOUND);
 583         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 584         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 585         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 586                        IWLAGN_RTC_DATA_LOWER_BOUND);
 587         return 0;
 588 }
 589
 590 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
 591                                      enum iwl_ucode_tlv_type tlv_type,
 592                                      const void *tlv_data, u32 tlv_len)
 593 {
 594         const struct iwl_fw_dump_exclude *fw = tlv_data;
 595         struct iwl_dump_exclude *excl;
 596
 597         if (tlv_len < sizeof(*fw))
 598                 return;
 599
 600         if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
 601                 excl = &drv->fw.dump_excl[0];
 602
 603                 /* second time we find this, it's for WoWLAN */
 604                 if (excl->addr)
 605                         excl = &drv->fw.dump_excl_wowlan[0];
 606         } else if (fw_has_capa(&drv->fw.ucode_capa,
 607                                IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
 608                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
 609                 excl = &drv->fw.dump_excl[0];
 610         } else {
 611                 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
 612                 excl = &drv->fw.dump_excl_wowlan[0];
 613         }
 614
 615         if (excl->addr)
 616                 excl++;
 617
 618         if (excl->addr) {
 619                 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
 620                 return;
 621         }
 622
 623         excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
 624         excl->size = le32_to_cpu(fw->size);
 625 }
 626
 627 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
 628                                             const struct iwl_ucode_tlv *tlv)
 629 {
 630         const struct iwl_fw_ini_region_tlv *region;
 631         u32 length = le32_to_cpu(tlv->length);
 632         u32 addr;
 633
 634         if (length < offsetof(typeof(*region), special_mem) +
 635                      sizeof(region->special_mem))
 636                 return;
 637
 638         region = (const void *)tlv->data;
 639         addr = le32_to_cpu(region->special_mem.base_addr);
 640         addr += le32_to_cpu(region->special_mem.offset);
 641         addr &= ~FW_ADDR_CACHE_CONTROL;
 642
 643         if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
 644                 return;
 645
 646         switch (region->sub_type) {
 647         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
 648                 drv->trans->dbg.umac_error_event_table = addr;
 649                 drv->trans->dbg.error_event_table_tlv_status |=
 650                         IWL_ERROR_EVENT_TABLE_UMAC;
 651                 break;
 652         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
 653                 drv->trans->dbg.lmac_error_event_table[0] = addr;
 654                 drv->trans->dbg.error_event_table_tlv_status |=
 655                         IWL_ERROR_EVENT_TABLE_LMAC1;
 656                 break;
 657         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
 658                 drv->trans->dbg.lmac_error_event_table[1] = addr;
 659                 drv->trans->dbg.error_event_table_tlv_status |=
 660                         IWL_ERROR_EVENT_TABLE_LMAC2;
 661                 break;
 662         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
 663                 drv->trans->dbg.tcm_error_event_table[0] = addr;
 664                 drv->trans->dbg.error_event_table_tlv_status |=
 665                         IWL_ERROR_EVENT_TABLE_TCM1;
 666                 break;
 667         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
 668                 drv->trans->dbg.tcm_error_event_table[1] = addr;
 669                 drv->trans->dbg.error_event_table_tlv_status |=
 670                         IWL_ERROR_EVENT_TABLE_TCM2;
 671                 break;
 672         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
 673                 drv->trans->dbg.rcm_error_event_table[0] = addr;
 674                 drv->trans->dbg.error_event_table_tlv_status |=
 675                         IWL_ERROR_EVENT_TABLE_RCM1;
 676                 break;
 677         case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
 678                 drv->trans->dbg.rcm_error_event_table[1] = addr;
 679                 drv->trans->dbg.error_event_table_tlv_status |=
 680                         IWL_ERROR_EVENT_TABLE_RCM2;
 681                 break;
 682         default:
 683                 break;
 684         }
 685 }
 686
 687 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 688                                 const struct firmware *ucode_raw,
 689                                 struct iwl_firmware_pieces *pieces,
 690                                 struct iwl_ucode_capabilities *capa,
 691                                 bool *usniffer_images)
 692 {
 693         const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
 694         const struct iwl_ucode_tlv *tlv;
 695         size_t len = ucode_raw->size;
 696         const u8 *data;
 697         u32 tlv_len;
 698         u32 usniffer_img;
 699         enum iwl_ucode_tlv_type tlv_type;
 700         const u8 *tlv_data;
 701         char buildstr[25];
 702         u32 build, paging_mem_size;
 703         int num_of_cpus;
 704         bool usniffer_req = false;
 705
 706         if (len < sizeof(*ucode)) {
 707                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 708                 return -EINVAL;
 709         }
 710
 711         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 712                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 713                         le32_to_cpu(ucode->magic));
 714                 return -EINVAL;
 715         }
 716
 717         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 718         memcpy(drv->fw.human_readable, ucode->human_readable,
 719                sizeof(drv->fw.human_readable));
 720         build = le32_to_cpu(ucode->build);
 721
 722         if (build)
 723                 sprintf(buildstr, " build %u", build);
 724         else
 725                 buildstr[0] = '\0';
 726
 727         snprintf(drv->fw.fw_version,
 728                  sizeof(drv->fw.fw_version),
 729                  "%u.%u.%u.%u%s %s",
 730                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 731                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 732                  IWL_UCODE_API(drv->fw.ucode_ver),
 733                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 734                  buildstr, iwl_reduced_fw_name(drv));
 735
 736         data = ucode->data;
 737
 738         len -= sizeof(*ucode);
 739
 740         while (len >= sizeof(*tlv)) {
 741                 len -= sizeof(*tlv);
 742
 743                 tlv = (const void *)data;
 744                 tlv_len = le32_to_cpu(tlv->length);
 745                 tlv_type = le32_to_cpu(tlv->type);
 746                 tlv_data = tlv->data;
 747
 748                 if (len < tlv_len) {
 749                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 750                                 len, tlv_len);
 751                         return -EINVAL;
 752                 }
 753                 len -= ALIGN(tlv_len, 4);
 754                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 755
 756                 switch (tlv_type) {
 757                 case IWL_UCODE_TLV_INST:
 758                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 759                                      IWL_UCODE_SECTION_INST, tlv_data);
 760                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 761                                      IWL_UCODE_SECTION_INST, tlv_len);
 762                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 763                                        IWL_UCODE_SECTION_INST,
 764                                        IWLAGN_RTC_INST_LOWER_BOUND);
 765                         break;
 766                 case IWL_UCODE_TLV_DATA:
 767                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 768                                      IWL_UCODE_SECTION_DATA, tlv_data);
 769                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 770                                      IWL_UCODE_SECTION_DATA, tlv_len);
 771                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 772                                        IWL_UCODE_SECTION_DATA,
 773                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 774                         break;
 775                 case IWL_UCODE_TLV_INIT:
 776                         set_sec_data(pieces, IWL_UCODE_INIT,
 777                                      IWL_UCODE_SECTION_INST, tlv_data);
 778                         set_sec_size(pieces, IWL_UCODE_INIT,
 779                                      IWL_UCODE_SECTION_INST, tlv_len);
 780                         set_sec_offset(pieces, IWL_UCODE_INIT,
 781                                        IWL_UCODE_SECTION_INST,
 782                                        IWLAGN_RTC_INST_LOWER_BOUND);
 783                         break;
 784                 case IWL_UCODE_TLV_INIT_DATA:
 785                         set_sec_data(pieces, IWL_UCODE_INIT,
 786                                      IWL_UCODE_SECTION_DATA, tlv_data);
 787                         set_sec_size(pieces, IWL_UCODE_INIT,
 788                                      IWL_UCODE_SECTION_DATA, tlv_len);
 789                         set_sec_offset(pieces, IWL_UCODE_INIT,
 790                                        IWL_UCODE_SECTION_DATA,
 791                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 792                         break;
 793                 case IWL_UCODE_TLV_BOOT:
 794                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 795                         break;
 796                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 797                         if (tlv_len != sizeof(u32))
 798                                 goto invalid_tlv_len;
 799                         capa->max_probe_length =
 800                                         le32_to_cpup((const __le32 *)tlv_data);
 801                         break;
 802                 case IWL_UCODE_TLV_PAN:
 803                         if (tlv_len)
 804                                 goto invalid_tlv_len;
 805                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 806                         break;
 807                 case IWL_UCODE_TLV_FLAGS:
 808                         /* must be at least one u32 */
 809                         if (tlv_len < sizeof(u32))
 810                                 goto invalid_tlv_len;
 811                         /* and a proper number of u32s */
 812                         if (tlv_len % sizeof(u32))
 813                                 goto invalid_tlv_len;
 814                         /*
 815                          * This driver only reads the first u32 as
 816                          * right now no more features are defined,
 817                          * if that changes then either the driver
 818                          * will not work with the new firmware, or
 819                          * it'll not take advantage of new features.
 820                          */
 821                         capa->flags = le32_to_cpup((const __le32 *)tlv_data);
 822                         break;
 823                 case IWL_UCODE_TLV_API_CHANGES_SET:
 824                         if (tlv_len != sizeof(struct iwl_ucode_api))
 825                                 goto invalid_tlv_len;
 826                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 827                         break;
 828                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 829                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 830                                 goto invalid_tlv_len;
 831                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 832                         break;
 833                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 834                         if (tlv_len != sizeof(u32))
 835                                 goto invalid_tlv_len;
 836                         pieces->init_evtlog_ptr =
 837                                         le32_to_cpup((const __le32 *)tlv_data);
 838                         break;
 839                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 840                         if (tlv_len != sizeof(u32))
 841                                 goto invalid_tlv_len;
 842                         pieces->init_evtlog_size =
 843                                         le32_to_cpup((const __le32 *)tlv_data);
 844                         break;
 845                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 846                         if (tlv_len != sizeof(u32))
 847                                 goto invalid_tlv_len;
 848                         pieces->init_errlog_ptr =
 849                                         le32_to_cpup((const __le32 *)tlv_data);
 850                         break;
 851                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 852                         if (tlv_len != sizeof(u32))
 853                                 goto invalid_tlv_len;
 854                         pieces->inst_evtlog_ptr =
 855                                         le32_to_cpup((const __le32 *)tlv_data);
 856                         break;
 857                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 858                         if (tlv_len != sizeof(u32))
 859                                 goto invalid_tlv_len;
 860                         pieces->inst_evtlog_size =
 861                                         le32_to_cpup((const __le32 *)tlv_data);
 862                         break;
 863                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 864                         if (tlv_len != sizeof(u32))
 865                                 goto invalid_tlv_len;
 866                         pieces->inst_errlog_ptr =
 867                                         le32_to_cpup((const __le32 *)tlv_data);
 868                         break;
 869                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 870                         if (tlv_len)
 871                                 goto invalid_tlv_len;
 872                         drv->fw.enhance_sensitivity_table = true;
 873                         break;
 874                 case IWL_UCODE_TLV_WOWLAN_INST:
 875                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 876                                      IWL_UCODE_SECTION_INST, tlv_data);
 877                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 878                                      IWL_UCODE_SECTION_INST, tlv_len);
 879                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 880                                        IWL_UCODE_SECTION_INST,
 881                                        IWLAGN_RTC_INST_LOWER_BOUND);
 882                         break;
 883                 case IWL_UCODE_TLV_WOWLAN_DATA:
 884                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 885                                      IWL_UCODE_SECTION_DATA, tlv_data);
 886                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 887                                      IWL_UCODE_SECTION_DATA, tlv_len);
 888                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 889                                        IWL_UCODE_SECTION_DATA,
 890                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 891                         break;
 892                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 893                         if (tlv_len != sizeof(u32))
 894                                 goto invalid_tlv_len;
 895                         capa->standard_phy_calibration_size =
 896                                         le32_to_cpup((const __le32 *)tlv_data);
 897                         break;
 898                 case IWL_UCODE_TLV_SEC_RT:
 899                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 900                                             tlv_len);
 901                         drv->fw.type = IWL_FW_MVM;
 902                         break;
 903                 case IWL_UCODE_TLV_SEC_INIT:
 904                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 905                                             tlv_len);
 906                         drv->fw.type = IWL_FW_MVM;
 907                         break;
 908                 case IWL_UCODE_TLV_SEC_WOWLAN:
 909                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 910                                             tlv_len);
 911                         drv->fw.type = IWL_FW_MVM;
 912                         break;
 913                 case IWL_UCODE_TLV_DEF_CALIB:
 914                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 915                                 goto invalid_tlv_len;
 916                         if (iwl_set_default_calib(drv, tlv_data))
 917                                 goto tlv_error;
 918                         break;
 919                 case IWL_UCODE_TLV_PHY_SKU:
 920                         if (tlv_len != sizeof(u32))
 921                                 goto invalid_tlv_len;
 922                         drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
 923                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 924                                                 FW_PHY_CFG_TX_CHAIN) >>
 925                                                 FW_PHY_CFG_TX_CHAIN_POS;
 926                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 927                                                 FW_PHY_CFG_RX_CHAIN) >>
 928                                                 FW_PHY_CFG_RX_CHAIN_POS;
 929                         break;
 930                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 931                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 932                                             tlv_len);
 933                         drv->fw.type = IWL_FW_MVM;
 934                         break;
 935                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 936                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 937                                             tlv_len);
 938                         drv->fw.type = IWL_FW_MVM;
 939                         break;
 940                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 941                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 942                                             tlv_len);
 943                         drv->fw.type = IWL_FW_MVM;
 944                         break;
 945                 case IWL_UCODE_TLV_NUM_OF_CPU:
 946                         if (tlv_len != sizeof(u32))
 947                                 goto invalid_tlv_len;
 948                         num_of_cpus =
 949                                 le32_to_cpup((const __le32 *)tlv_data);
 950
 951                         if (num_of_cpus == 2) {
 952                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 953                                         true;
 954                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 955                                         true;
 956                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 957                                         true;
 958                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 959                                 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
 960                                 return -EINVAL;
 961                         }
 962                         break;
 963                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 964                         if (tlv_len != sizeof(u32))
 965                                 goto invalid_tlv_len;
 966                         capa->n_scan_channels =
 967                                 le32_to_cpup((const __le32 *)tlv_data);
 968                         break;
 969                 case IWL_UCODE_TLV_FW_VERSION: {
 970                         const __le32 *ptr = (const void *)tlv_data;
 971                         u32 major, minor;
 972                         u8 local_comp;
 973
 974                         if (tlv_len != sizeof(u32) * 3)
 975                                 goto invalid_tlv_len;
 976
 977                         major = le32_to_cpup(ptr++);
 978                         minor = le32_to_cpup(ptr++);
 979                         local_comp = le32_to_cpup(ptr);
 980
 981                         if (major >= 35)
 982                                 snprintf(drv->fw.fw_version,
 983                                          sizeof(drv->fw.fw_version),
 984                                         "%u.%08x.%u %s", major, minor,
 985                                         local_comp, iwl_reduced_fw_name(drv));
 986                         else
 987                                 snprintf(drv->fw.fw_version,
 988                                          sizeof(drv->fw.fw_version),
 989                                         "%u.%u.%u %s", major, minor,
 990                                         local_comp, iwl_reduced_fw_name(drv));
 991                         break;
 992                         }
 993                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 994                         const struct iwl_fw_dbg_dest_tlv *dest = NULL;
 995                         const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
 996                         u8 mon_mode;
 997
 998                         pieces->dbg_dest_ver = (const u8 *)tlv_data;
 999                         if (*pieces->dbg_dest_ver == 1) {
1000                                 dest = (const void *)tlv_data;
1001                         } else if (*pieces->dbg_dest_ver == 0) {
1002                                 dest_v1 = (const void *)tlv_data;
1003                         } else {
1004                                 IWL_ERR(drv,
1005                                         "The version is %d, and it is invalid\n",
1006                                         *pieces->dbg_dest_ver);
1007                                 break;
1008                         }
1009
1010                         if (pieces->dbg_dest_tlv_init) {
1011                                 IWL_ERR(drv,
1012                                         "dbg destination ignored, already exists\n");
1013                                 break;
1014                         }
1015
1016                         pieces->dbg_dest_tlv_init = true;
1017
1018                         if (dest_v1) {
1019                                 pieces->dbg_dest_tlv_v1 = dest_v1;
1020                                 mon_mode = dest_v1->monitor_mode;
1021                         } else {
1022                                 pieces->dbg_dest_tlv = dest;
1023                                 mon_mode = dest->monitor_mode;
1024                         }
1025
1026                         IWL_INFO(drv, "Found debug destination: %s\n",
1027                                  get_fw_dbg_mode_string(mon_mode));
1028
1029                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
1030                                 tlv_len -
1031                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1032                                          reg_ops) :
1033                                 tlv_len -
1034                                 offsetof(struct iwl_fw_dbg_dest_tlv,
1035                                          reg_ops);
1036
1037                         drv->fw.dbg.n_dest_reg /=
1038                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1039
1040                         break;
1041                         }
1042                 case IWL_UCODE_TLV_FW_DBG_CONF: {
1043                         const struct iwl_fw_dbg_conf_tlv *conf =
1044                                 (const void *)tlv_data;
1045
1046                         if (!pieces->dbg_dest_tlv_init) {
1047                                 IWL_ERR(drv,
1048                                         "Ignore dbg config %d - no destination configured\n",
1049                                         conf->id);
1050                                 break;
1051                         }
1052
1053                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1054                                 IWL_ERR(drv,
1055                                         "Skip unknown configuration: %d\n",
1056                                         conf->id);
1057                                 break;
1058                         }
1059
1060                         if (pieces->dbg_conf_tlv[conf->id]) {
1061                                 IWL_ERR(drv,
1062                                         "Ignore duplicate dbg config %d\n",
1063                                         conf->id);
1064                                 break;
1065                         }
1066
1067                         if (conf->usniffer)
1068                                 usniffer_req = true;
1069
1070                         IWL_INFO(drv, "Found debug configuration: %d\n",
1071                                  conf->id);
1072
1073                         pieces->dbg_conf_tlv[conf->id] = conf;
1074                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1075                         break;
1076                         }
1077                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1078                         const struct iwl_fw_dbg_trigger_tlv *trigger =
1079                                 (const void *)tlv_data;
1080                         u32 trigger_id = le32_to_cpu(trigger->id);
1081
1082                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1083                                 IWL_ERR(drv,
1084                                         "Skip unknown trigger: %u\n",
1085                                         trigger->id);
1086                                 break;
1087                         }
1088
1089                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1090                                 IWL_ERR(drv,
1091                                         "Ignore duplicate dbg trigger %u\n",
1092                                         trigger->id);
1093                                 break;
1094                         }
1095
1096                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1097
1098                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1099                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1100                         break;
1101                         }
1102                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1103                         if (tlv_len != sizeof(u32)) {
1104                                 IWL_ERR(drv,
1105                                         "dbg lst mask size incorrect, skip\n");
1106                                 break;
1107                         }
1108
1109                         drv->fw.dbg.dump_mask =
1110                                 le32_to_cpup((const __le32 *)tlv_data);
1111                         break;
1112                         }
1113                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1114                         *usniffer_images = true;
1115                         iwl_store_ucode_sec(pieces, tlv_data,
1116                                             IWL_UCODE_REGULAR_USNIFFER,
1117                                             tlv_len);
1118                         break;
1119                 case IWL_UCODE_TLV_PAGING:
1120                         if (tlv_len != sizeof(u32))
1121                                 goto invalid_tlv_len;
1122                         paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1123
1124                         IWL_DEBUG_FW(drv,
1125                                      "Paging: paging enabled (size = %u bytes)\n",
1126                                      paging_mem_size);
1127
1128                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1129                                 IWL_ERR(drv,
1130                                         "Paging: driver supports up to %lu bytes for paging image\n",
1131                                         MAX_PAGING_IMAGE_SIZE);
1132                                 return -EINVAL;
1133                         }
1134
1135                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1136                                 IWL_ERR(drv,
1137                                         "Paging: image isn't multiple %lu\n",
1138                                         FW_PAGING_SIZE);
1139                                 return -EINVAL;
1140                         }
1141
1142                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1143                                 paging_mem_size;
1144                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1145                         drv->fw.img[usniffer_img].paging_mem_size =
1146                                 paging_mem_size;
1147                         break;
1148                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1149                         /* ignored */
1150                         break;
1151                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1152                         const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1153                                 (const void *)tlv_data;
1154                         size_t size;
1155                         struct iwl_fw_dbg_mem_seg_tlv *n;
1156
1157                         if (tlv_len != (sizeof(*dbg_mem)))
1158                                 goto invalid_tlv_len;
1159
1160                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1161                                        dbg_mem->data_type);
1162
1163                         size = sizeof(*pieces->dbg_mem_tlv) *
1164                                (pieces->n_mem_tlv + 1);
1165                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1166                         if (!n)
1167                                 return -ENOMEM;
1168                         pieces->dbg_mem_tlv = n;
1169                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1170                         pieces->n_mem_tlv++;
1171                         break;
1172                         }
1173                 case IWL_UCODE_TLV_IML: {
1174                         drv->fw.iml_len = tlv_len;
1175                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1176                         if (!drv->fw.iml)
1177                                 return -ENOMEM;
1178                         break;
1179                         }
1180                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1181                         const struct {
1182                                 __le32 buf_addr;
1183                                 __le32 buf_size;
1184                         } *recov_info = (const void *)tlv_data;
1185
1186                         if (tlv_len != sizeof(*recov_info))
1187                                 goto invalid_tlv_len;
1188                         capa->error_log_addr =
1189                                 le32_to_cpu(recov_info->buf_addr);
1190                         capa->error_log_size =
1191                                 le32_to_cpu(recov_info->buf_size);
1192                         }
1193                         break;
1194                 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1195                         const struct {
1196                                 u8 version[32];
1197                                 u8 sha1[20];
1198                         } *fseq_ver = (const void *)tlv_data;
1199
1200                         if (tlv_len != sizeof(*fseq_ver))
1201                                 goto invalid_tlv_len;
1202                         IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1203                                  fseq_ver->version);
1204                         }
1205                         break;
1206                 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1207                         if (tlv_len != sizeof(u32))
1208                                 goto invalid_tlv_len;
1209                         if (le32_to_cpup((const __le32 *)tlv_data) >
1210                             IWL_MVM_STATION_COUNT_MAX) {
1211                                 IWL_ERR(drv,
1212                                         "%d is an invalid number of station\n",
1213                                         le32_to_cpup((const __le32 *)tlv_data));
1214                                 goto tlv_error;
1215                         }
1216                         capa->num_stations =
1217                                 le32_to_cpup((const __le32 *)tlv_data);
1218                         break;
1219                 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1220                         if (tlv_len != sizeof(u32))
1221                                 goto invalid_tlv_len;
1222                         capa->num_beacons =
1223                                 le32_to_cpup((const __le32 *)tlv_data);
1224                         break;
1225                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1226                         const struct iwl_umac_debug_addrs *dbg_ptrs =
1227                                 (const void *)tlv_data;
1228
1229                         if (tlv_len != sizeof(*dbg_ptrs))
1230                                 goto invalid_tlv_len;
1231                         if (drv->trans->trans_cfg->device_family <
1232                             IWL_DEVICE_FAMILY_22000)
1233                                 break;
1234                         drv->trans->dbg.umac_error_event_table =
1235                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1236                                 ~FW_ADDR_CACHE_CONTROL;
1237                         drv->trans->dbg.error_event_table_tlv_status |=
1238                                 IWL_ERROR_EVENT_TABLE_UMAC;
1239                         break;
1240                         }
1241                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1242                         const struct iwl_lmac_debug_addrs *dbg_ptrs =
1243                                 (const void *)tlv_data;
1244
1245                         if (tlv_len != sizeof(*dbg_ptrs))
1246                                 goto invalid_tlv_len;
1247                         if (drv->trans->trans_cfg->device_family <
1248                             IWL_DEVICE_FAMILY_22000)
1249                                 break;
1250                         drv->trans->dbg.lmac_error_event_table[0] =
1251                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1252                                 ~FW_ADDR_CACHE_CONTROL;
1253                         drv->trans->dbg.error_event_table_tlv_status |=
1254                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1255                         break;
1256                         }
1257                 case IWL_UCODE_TLV_TYPE_REGIONS:
1258                         iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1259                         fallthrough;
1260                 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1261                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1262                 case IWL_UCODE_TLV_TYPE_HCMD:
1263                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1264                 case IWL_UCODE_TLV_TYPE_CONF_SET:
1265                         if (iwlwifi_mod_params.enable_ini)
1266                                 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1267                         break;
1268                 case IWL_UCODE_TLV_CMD_VERSIONS:
1269                         if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1270                                 IWL_ERR(drv,
1271                                         "Invalid length for command versions: %u\n",
1272                                         tlv_len);
1273                                 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1274                                 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1275                         }
1276                         if (WARN_ON(capa->cmd_versions))
1277                                 return -EINVAL;
1278                         capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1279                                                      GFP_KERNEL);
1280                         if (!capa->cmd_versions)
1281                                 return -ENOMEM;
1282                         capa->n_cmd_versions =
1283                                 tlv_len / sizeof(struct iwl_fw_cmd_version);
1284                         break;
1285                 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1286                         if (drv->fw.phy_integration_ver) {
1287                                 IWL_ERR(drv,
1288                                         "phy integration str ignored, already exists\n");
1289                                 break;
1290                         }
1291
1292                         drv->fw.phy_integration_ver =
1293                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1294                         if (!drv->fw.phy_integration_ver)
1295                                 return -ENOMEM;
1296                         drv->fw.phy_integration_ver_len = tlv_len;
1297                         break;
1298                 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1299                 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1300                         iwl_drv_set_dump_exclude(drv, tlv_type,
1301                                                  tlv_data, tlv_len);
1302                         break;
1303                 case IWL_UCODE_TLV_CURRENT_PC:
1304                         if (tlv_len < sizeof(struct iwl_pc_data))
1305                                 goto invalid_tlv_len;
1306                         drv->trans->dbg.num_pc =
1307                                 tlv_len / sizeof(struct iwl_pc_data);
1308                         drv->trans->dbg.pc_data =
1309                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1310                         break;
1311                 default:
1312                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1313                         break;
1314                 }
1315         }
1316
1317         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1318             usniffer_req && !*usniffer_images) {
1319                 IWL_ERR(drv,
1320                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1321                 return -EINVAL;
1322         }
1323
1324         if (len) {
1325                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1326                 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1327                 return -EINVAL;
1328         }
1329
1330         return 0;
1331
1332  invalid_tlv_len:
1333         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1334  tlv_error:
1335         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1336
1337         return -EINVAL;
1338 }
1339
1340 static int iwl_alloc_ucode(struct iwl_drv *drv,
1341                            struct iwl_firmware_pieces *pieces,
1342                            enum iwl_ucode_type type)
1343 {
1344         int i;
1345         struct fw_desc *sec;
1346
1347         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1348         if (!sec)
1349                 return -ENOMEM;
1350         drv->fw.img[type].sec = sec;
1351         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1352
1353         for (i = 0; i < pieces->img[type].sec_counter; i++)
1354                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1355                         return -ENOMEM;
1356
1357         return 0;
1358 }
1359
1360 static int validate_sec_sizes(struct iwl_drv *drv,
1361                               struct iwl_firmware_pieces *pieces,
1362                               const struct iwl_cfg *cfg)
1363 {
1364         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1365                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1366                              IWL_UCODE_SECTION_INST));
1367         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1368                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1369                              IWL_UCODE_SECTION_DATA));
1370         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1371                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1372         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1373                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1374
1375         /* Verify that uCode images will fit in card's SRAM. */
1376         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1377             cfg->max_inst_size) {
1378                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1379                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1380                                      IWL_UCODE_SECTION_INST));
1381                 return -1;
1382         }
1383
1384         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1385             cfg->max_data_size) {
1386                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1387                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1388                                      IWL_UCODE_SECTION_DATA));
1389                 return -1;
1390         }
1391
1392         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1393              cfg->max_inst_size) {
1394                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1395                         get_sec_size(pieces, IWL_UCODE_INIT,
1396                                      IWL_UCODE_SECTION_INST));
1397                 return -1;
1398         }
1399
1400         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1401             cfg->max_data_size) {
1402                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1403                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1404                                      IWL_UCODE_SECTION_DATA));
1405                 return -1;
1406         }
1407         return 0;
1408 }
1409
1410 static struct iwl_op_mode *
1411 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1412 {
1413         const struct iwl_op_mode_ops *ops = op->ops;
1414         struct dentry *dbgfs_dir = NULL;
1415         struct iwl_op_mode *op_mode = NULL;
1416         int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1417
1418         for (retry = 0; retry <= max_retry; retry++) {
1419
1420 #ifdef CONFIG_IWLWIFI_DEBUGFS
1421                 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1422                                                         drv->dbgfs_drv);
1423                 dbgfs_dir = drv->dbgfs_op_mode;
1424 #endif
1425
1426                 op_mode = ops->start(drv->trans, drv->trans->cfg,
1427                                      &drv->fw, dbgfs_dir);
1428
1429                 if (op_mode)
1430                         return op_mode;
1431
1432                 IWL_ERR(drv, "retry init count %d\n", retry);
1433
1434 #ifdef CONFIG_IWLWIFI_DEBUGFS
1435                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1436                 drv->dbgfs_op_mode = NULL;
1437 #endif
1438         }
1439
1440         return NULL;
1441 }
1442
1443 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1444 {
1445         /* op_mode can be NULL if its start failed */
1446         if (drv->op_mode) {
1447                 iwl_op_mode_stop(drv->op_mode);
1448                 drv->op_mode = NULL;
1449
1450 #ifdef CONFIG_IWLWIFI_DEBUGFS
1451                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1452                 drv->dbgfs_op_mode = NULL;
1453 #endif
1454         }
1455 }
1456
1457 /*
1458  * iwl_req_fw_callback - callback when firmware was loaded
1459  *
1460  * If loaded successfully, copies the firmware into buffers
1461  * for the card to fetch (via DMA).
1462  */
1463 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1464 {
1465         struct iwl_drv *drv = context;
1466         struct iwl_fw *fw = &drv->fw;
1467         const struct iwl_ucode_header *ucode;
1468         struct iwlwifi_opmode_table *op;
1469         int err;
1470         struct iwl_firmware_pieces *pieces;
1471         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1472         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1473         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1474         u32 api_ver;
1475         int i;
1476         bool load_module = false;
1477         bool usniffer_images = false;
1478         bool failure = true;
1479
1480         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1481         fw->ucode_capa.standard_phy_calibration_size =
1482                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1483         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1484         fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1485         fw->ucode_capa.num_beacons = 1;
1486         /* dump all fw memory areas by default */
1487         fw->dbg.dump_mask = 0xffffffff;
1488
1489         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1490         if (!pieces)
1491                 goto out_free_fw;
1492
1493         if (!ucode_raw)
1494                 goto try_again;
1495
1496         IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1497                           drv->firmware_name, ucode_raw->size);
1498
1499         /* Make sure that we got at least the API version number */
1500         if (ucode_raw->size < 4) {
1501                 IWL_ERR(drv, "File size way too small!\n");
1502                 goto try_again;
1503         }
1504
1505         /* Data from ucode file:  header followed by uCode images */
1506         ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1507
1508         if (ucode->ver)
1509                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1510         else
1511                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1512                                              &fw->ucode_capa, &usniffer_images);
1513
1514         if (err)
1515                 goto try_again;
1516
1517         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1518                 api_ver = drv->fw.ucode_ver;
1519         else
1520                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1521
1522         /*
1523          * api_ver should match the api version forming part of the
1524          * firmware filename ... but we don't check for that and only rely
1525          * on the API version read from firmware header from here on forward
1526          */
1527         if (api_ver < api_min || api_ver > api_max) {
1528                 IWL_ERR(drv,
1529                         "Driver unable to support your firmware API. "
1530                         "Driver supports v%u, firmware is v%u.\n",
1531                         api_max, api_ver);
1532                 goto try_again;
1533         }
1534
1535         /*
1536          * In mvm uCode there is no difference between data and instructions
1537          * sections.
1538          */
1539         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1540                                                          drv->trans->cfg))
1541                 goto try_again;
1542
1543         /* Allocate ucode buffers for card's bus-master loading ... */
1544
1545         /* Runtime instructions and 2 copies of data:
1546          * 1) unmodified from disk
1547          * 2) backup cache for save/restore during power-downs
1548          */
1549         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1550                 if (iwl_alloc_ucode(drv, pieces, i))
1551                         goto out_free_fw;
1552
1553         if (pieces->dbg_dest_tlv_init) {
1554                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1555                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1556                         drv->fw.dbg.n_dest_reg;
1557
1558                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1559
1560                 if (!drv->fw.dbg.dest_tlv)
1561                         goto out_free_fw;
1562
1563                 if (*pieces->dbg_dest_ver == 0) {
1564                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1565                                dbg_dest_size);
1566                 } else {
1567                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1568                                 drv->fw.dbg.dest_tlv;
1569
1570                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1571                         dest_tlv->monitor_mode =
1572                                 pieces->dbg_dest_tlv->monitor_mode;
1573                         dest_tlv->size_power =
1574                                 pieces->dbg_dest_tlv->size_power;
1575                         dest_tlv->wrap_count =
1576                                 pieces->dbg_dest_tlv->wrap_count;
1577                         dest_tlv->write_ptr_reg =
1578                                 pieces->dbg_dest_tlv->write_ptr_reg;
1579                         dest_tlv->base_shift =
1580                                 pieces->dbg_dest_tlv->base_shift;
1581                         memcpy(dest_tlv->reg_ops,
1582                                pieces->dbg_dest_tlv->reg_ops,
1583                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1584                                drv->fw.dbg.n_dest_reg);
1585
1586                         /* In version 1 of the destination tlv, which is
1587                          * relevant for internal buffer exclusively,
1588                          * the base address is part of given with the length
1589                          * of the buffer, and the size shift is give instead of
1590                          * end shift. We now store these values in base_reg,
1591                          * and end shift, and when dumping the data we'll
1592                          * manipulate it for extracting both the length and
1593                          * base address */
1594                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1595                         dest_tlv->end_shift =
1596                                 pieces->dbg_dest_tlv->size_shift;
1597                 }
1598         }
1599
1600         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1601                 if (pieces->dbg_conf_tlv[i]) {
1602                         drv->fw.dbg.conf_tlv[i] =
1603                                 kmemdup(pieces->dbg_conf_tlv[i],
1604                                         pieces->dbg_conf_tlv_len[i],
1605                                         GFP_KERNEL);
1606                         if (!drv->fw.dbg.conf_tlv[i])
1607                                 goto out_free_fw;
1608                 }
1609         }
1610
1611         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1612
1613         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1614                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1615         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1616         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1617                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1618         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1619                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1620         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1621                 sizeof(struct iwl_fw_dbg_trigger_stats);
1622         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1623                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1624         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1625                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1626         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1627                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1628         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1629                 sizeof(struct iwl_fw_dbg_trigger_ba);
1630         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1631                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1632
1633         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1634                 if (pieces->dbg_trigger_tlv[i]) {
1635                         /*
1636                          * If the trigger isn't long enough, WARN and exit.
1637                          * Someone is trying to debug something and he won't
1638                          * be able to catch the bug he is trying to chase.
1639                          * We'd better be noisy to be sure he knows what's
1640                          * going on.
1641                          */
1642                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1643                                     (trigger_tlv_sz[i] +
1644                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1645                                 goto out_free_fw;
1646                         drv->fw.dbg.trigger_tlv_len[i] =
1647                                 pieces->dbg_trigger_tlv_len[i];
1648                         drv->fw.dbg.trigger_tlv[i] =
1649                                 kmemdup(pieces->dbg_trigger_tlv[i],
1650                                         drv->fw.dbg.trigger_tlv_len[i],
1651                                         GFP_KERNEL);
1652                         if (!drv->fw.dbg.trigger_tlv[i])
1653                                 goto out_free_fw;
1654                 }
1655         }
1656
1657         /* Now that we can no longer fail, copy information */
1658
1659         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1660         pieces->dbg_mem_tlv = NULL;
1661         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1662
1663         /*
1664          * The (size - 16) / 12 formula is based on the information recorded
1665          * for each event, which is of mode 1 (including timestamp) for all
1666          * new microcodes that include this information.
1667          */
1668         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1669         if (pieces->init_evtlog_size)
1670                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1671         else
1672                 fw->init_evtlog_size =
1673                         drv->trans->trans_cfg->base_params->max_event_log_size;
1674         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1675         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1676         if (pieces->inst_evtlog_size)
1677                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1678         else
1679                 fw->inst_evtlog_size =
1680                         drv->trans->trans_cfg->base_params->max_event_log_size;
1681         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1682
1683         /*
1684          * figure out the offset of chain noise reset and gain commands
1685          * base on the size of standard phy calibration commands table size
1686          */
1687         if (fw->ucode_capa.standard_phy_calibration_size >
1688             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1689                 fw->ucode_capa.standard_phy_calibration_size =
1690                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1691
1692         /* We have our copies now, allow OS release its copies */
1693         release_firmware(ucode_raw);
1694
1695         iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1696
1697         mutex_lock(&iwlwifi_opmode_table_mtx);
1698         switch (fw->type) {
1699         case IWL_FW_DVM:
1700                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1701                 break;
1702         default:
1703                 WARN(1, "Invalid fw type %d\n", fw->type);
1704                 fallthrough;
1705         case IWL_FW_MVM:
1706                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1707                 break;
1708         }
1709
1710         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1711                  drv->fw.fw_version, op->name);
1712
1713         /* add this device to the list of devices using this op_mode */
1714         list_add_tail(&drv->list, &op->drv);
1715
1716         if (op->ops) {
1717                 drv->op_mode = _iwl_op_mode_start(drv, op);
1718
1719                 if (!drv->op_mode) {
1720                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1721                         goto out_unbind;
1722                 }
1723         } else {
1724                 load_module = true;
1725         }
1726         mutex_unlock(&iwlwifi_opmode_table_mtx);
1727
1728         /*
1729          * Complete the firmware request last so that
1730          * a driver unbind (stop) doesn't run while we
1731          * are doing the start() above.
1732          */
1733         complete(&drv->request_firmware_complete);
1734
1735         /*
1736          * Load the module last so we don't block anything
1737          * else from proceeding if the module fails to load
1738          * or hangs loading.
1739          */
1740         if (load_module)
1741                 request_module("%s", op->name);
1742         failure = false;
1743         goto free;
1744
1745  try_again:
1746         /* try next, if any */
1747         release_firmware(ucode_raw);
1748         if (iwl_request_firmware(drv, false))
1749                 goto out_unbind;
1750         goto free;
1751
1752  out_free_fw:
1753         release_firmware(ucode_raw);
1754  out_unbind:
1755         complete(&drv->request_firmware_complete);
1756         device_release_driver(drv->trans->dev);
1757         /* drv has just been freed by the release */
1758         failure = false;
1759  free:
1760         if (failure)
1761                 iwl_dealloc_ucode(drv);
1762
1763         if (pieces) {
1764                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1765                         kfree(pieces->img[i].sec);
1766                 kfree(pieces->dbg_mem_tlv);
1767                 kfree(pieces);
1768         }
1769 }
1770
1771 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1772 {
1773         struct iwl_drv *drv;
1774         int ret;
1775
1776         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1777         if (!drv) {
1778                 ret = -ENOMEM;
1779                 goto err;
1780         }
1781
1782         drv->trans = trans;
1783         drv->dev = trans->dev;
1784
1785         init_completion(&drv->request_firmware_complete);
1786         INIT_LIST_HEAD(&drv->list);
1787
1788 #ifdef CONFIG_IWLWIFI_DEBUGFS
1789         /* Create the device debugfs entries. */
1790         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1791                                             iwl_dbgfs_root);
1792
1793         /* Create transport layer debugfs dir */
1794         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1795 #endif
1796
1797         drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1798
1799         ret = iwl_request_firmware(drv, true);
1800         if (ret) {
1801                 IWL_ERR(trans, "Couldn't request the fw\n");
1802                 goto err_fw;
1803         }
1804
1805         return drv;
1806
1807 err_fw:
1808 #ifdef CONFIG_IWLWIFI_DEBUGFS
1809         debugfs_remove_recursive(drv->dbgfs_drv);
1810         iwl_dbg_tlv_free(drv->trans);
1811 #endif
1812         kfree(drv);
1813 err:
1814         return ERR_PTR(ret);
1815 }
1816
1817 void iwl_drv_stop(struct iwl_drv *drv)
1818 {
1819         wait_for_completion(&drv->request_firmware_complete);
1820
1821         _iwl_op_mode_stop(drv);
1822
1823         iwl_dealloc_ucode(drv);
1824
1825         mutex_lock(&iwlwifi_opmode_table_mtx);
1826         /*
1827          * List is empty (this item wasn't added)
1828          * when firmware loading failed -- in that
1829          * case we can't remove it from any list.
1830          */
1831         if (!list_empty(&drv->list))
1832                 list_del(&drv->list);
1833         mutex_unlock(&iwlwifi_opmode_table_mtx);
1834
1835 #ifdef CONFIG_IWLWIFI_DEBUGFS
1836         drv->trans->ops->debugfs_cleanup(drv->trans);
1837
1838         debugfs_remove_recursive(drv->dbgfs_drv);
1839 #endif
1840
1841         iwl_dbg_tlv_free(drv->trans);
1842
1843         kfree(drv);
1844 }
1845
1846 #define ENABLE_INI      (IWL_DBG_TLV_MAX_PRESET + 1)
1847
1848 /* shared module parameters */
1849 struct iwl_mod_params iwlwifi_mod_params = {
1850         .fw_restart = true,
1851         .bt_coex_active = true,
1852         .power_level = IWL_POWER_INDEX_1,
1853         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1854         .enable_ini = ENABLE_INI,
1855         /* the rest are 0 by default */
1856 };
1857 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1858
1859 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1860 {
1861         int i;
1862         struct iwl_drv *drv;
1863         struct iwlwifi_opmode_table *op;
1864
1865         mutex_lock(&iwlwifi_opmode_table_mtx);
1866         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1867                 op = &iwlwifi_opmode_table[i];
1868                 if (strcmp(op->name, name))
1869                         continue;
1870                 op->ops = ops;
1871                 /* TODO: need to handle exceptional case */
1872                 list_for_each_entry(drv, &op->drv, list)
1873                         drv->op_mode = _iwl_op_mode_start(drv, op);
1874
1875                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1876                 return 0;
1877         }
1878         mutex_unlock(&iwlwifi_opmode_table_mtx);
1879         return -EIO;
1880 }
1881 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1882
1883 void iwl_opmode_deregister(const char *name)
1884 {
1885         int i;
1886         struct iwl_drv *drv;
1887
1888         mutex_lock(&iwlwifi_opmode_table_mtx);
1889         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1890                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1891                         continue;
1892                 iwlwifi_opmode_table[i].ops = NULL;
1893
1894                 /* call the stop routine for all devices */
1895                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1896                         _iwl_op_mode_stop(drv);
1897
1898                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1899                 return;
1900         }
1901         mutex_unlock(&iwlwifi_opmode_table_mtx);
1902 }
1903 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1904
1905 static int __init iwl_drv_init(void)
1906 {
1907         int i, err;
1908
1909         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1910                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1911
1912         pr_info(DRV_DESCRIPTION "\n");
1913
1914 #ifdef CONFIG_IWLWIFI_DEBUGFS
1915         /* Create the root of iwlwifi debugfs subsystem. */
1916         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1917 #endif
1918
1919         err = iwl_pci_register_driver();
1920         if (err)
1921                 goto cleanup_debugfs;
1922
1923         return 0;
1924
1925 cleanup_debugfs:
1926 #ifdef CONFIG_IWLWIFI_DEBUGFS
1927         debugfs_remove_recursive(iwl_dbgfs_root);
1928 #endif
1929         return err;
1930 }
1931 module_init(iwl_drv_init);
1932
1933 static void __exit iwl_drv_exit(void)
1934 {
1935         iwl_pci_unregister_driver();
1936
1937 #ifdef CONFIG_IWLWIFI_DEBUGFS
1938         debugfs_remove_recursive(iwl_dbgfs_root);
1939 #endif
1940 }
1941 module_exit(iwl_drv_exit);
1942
1943 #ifdef CONFIG_IWLWIFI_DEBUG
1944 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1945 MODULE_PARM_DESC(debug, "debug output mask");
1946 #endif
1947
1948 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1949 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1950 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1951 MODULE_PARM_DESC(11n_disable,
1952         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1953 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1954 MODULE_PARM_DESC(amsdu_size,
1955                  "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1956                  "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1957 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1958 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1959
1960 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1961 MODULE_PARM_DESC(nvm_file, "NVM file name");
1962
1963 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1964 MODULE_PARM_DESC(uapsd_disable,
1965                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1966
1967 static int enable_ini_set(const char *arg, const struct kernel_param *kp)
1968 {
1969         int ret = 0;
1970         bool res;
1971         __u32 new_enable_ini;
1972
1973         /* in case the argument type is a number */
1974         ret = kstrtou32(arg, 0, &new_enable_ini);
1975         if (!ret) {
1976                 if (new_enable_ini > ENABLE_INI) {
1977                         pr_err("enable_ini cannot be %d, in range 0-16\n", new_enable_ini);
1978                         return -EINVAL;
1979                 }
1980                 goto out;
1981         }
1982
1983         /* in case the argument type is boolean */
1984         ret = kstrtobool(arg, &res);
1985         if (ret)
1986                 return ret;
1987         new_enable_ini = (res ? ENABLE_INI : 0);
1988
1989 out:
1990         iwlwifi_mod_params.enable_ini = new_enable_ini;
1991         return 0;
1992 }
1993
1994 static const struct kernel_param_ops enable_ini_ops = {
1995         .set = enable_ini_set
1996 };
1997
1998 module_param_cb(enable_ini, &enable_ini_ops, &iwlwifi_mod_params.enable_ini, 0644);
1999 MODULE_PARM_DESC(enable_ini,
2000                  "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
2001                  "Debug INI TLV FW debug infrastructure (default: 16)");
2002
2003 /*
2004  * set bt_coex_active to true, uCode will do kill/defer
2005  * every time the priority line is asserted (BT is sending signals on the
2006  * priority line in the PCIx).
2007  * set bt_coex_active to false, uCode will ignore the BT activity and
2008  * perform the normal operation
2009  *
2010  * User might experience transmit issue on some platform due to WiFi/BT
2011  * co-exist problem. The possible behaviors are:
2012  *   Able to scan and finding all the available AP
2013  *   Not able to associate with any AP
2014  * On those platforms, WiFi communication can be restored by set
2015  * "bt_coex_active" module parameter to "false"
2016  *
2017  * default: bt_coex_active = true (BT_COEX_ENABLE)
2018  */
2019 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2020                    bool, 0444);
2021 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2022
2023 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2024 MODULE_PARM_DESC(led_mode, "0=system default, "
2025                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2026
2027 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2028 MODULE_PARM_DESC(power_save,
2029                  "enable WiFi power management (default: disable)");
2030
2031 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2032 MODULE_PARM_DESC(power_level,
2033                  "default power save level (range from 1 - 5, default: 1)");
2034
2035 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2036 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2037
2038 module_param_named(remove_when_gone,
2039                    iwlwifi_mod_params.remove_when_gone, bool,
2040                    0444);
2041 MODULE_PARM_DESC(remove_when_gone,
2042                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2043
2044 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2045                    S_IRUGO);
2046 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2047
2048 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2049 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");