drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

   1 /******************************************************************************
   2  *
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   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  11  * Copyright(c) 2018        Intel Corporation
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of version 2 of the GNU General Public License as
  15  * published by the Free Software Foundation.
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  30  *
  31  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  32  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  33  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  34  * Copyright(c) 2018        Intel Corporation
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  49  *    from this software without specific prior written permission.
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  51  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  52  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  53  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  54  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  55  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  61  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62  *
  63  *****************************************************************************/
  64 #include <linux/vmalloc.h>
  65 #include <linux/ieee80211.h>
  66 #include <linux/netdevice.h>
  67
  68 #include "mvm.h"
  69 #include "sta.h"
  70 #include "iwl-io.h"
  71 #include "debugfs.h"
  72 #include "iwl-modparams.h"
  73 #include "fw/error-dump.h"
  74
  75 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
  76                                           char __user *user_buf,
  77                                           size_t count, loff_t *ppos)
  78 {
  79         struct iwl_mvm *mvm = file->private_data;
  80         char buf[16];
  81         int pos, budget;
  82
  83         if (!iwl_mvm_is_ctdp_supported(mvm))
  84                 return -EOPNOTSUPP;
  85
  86         if (!iwl_mvm_firmware_running(mvm) ||
  87             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
  88                 return -EIO;
  89
  90         mutex_lock(&mvm->mutex);
  91         budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
  92         mutex_unlock(&mvm->mutex);
  93
  94         if (budget < 0)
  95                 return budget;
  96
  97         pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
  98
  99         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 100 }
 101
 102 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
 103                                          size_t count, loff_t *ppos)
 104 {
 105         int ret;
 106
 107         if (!iwl_mvm_is_ctdp_supported(mvm))
 108                 return -EOPNOTSUPP;
 109
 110         if (!iwl_mvm_firmware_running(mvm) ||
 111             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 112                 return -EIO;
 113
 114         mutex_lock(&mvm->mutex);
 115         ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
 116         mutex_unlock(&mvm->mutex);
 117
 118         return ret ?: count;
 119 }
 120
 121 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
 122                                             size_t count, loff_t *ppos)
 123 {
 124         if (!iwl_mvm_firmware_running(mvm) ||
 125             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 126                 return -EIO;
 127
 128         iwl_mvm_enter_ctkill(mvm);
 129
 130         return count;
 131 }
 132
 133 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
 134                                         size_t count, loff_t *ppos)
 135 {
 136         int ret;
 137         u32 flush_arg;
 138
 139         if (!iwl_mvm_firmware_running(mvm) ||
 140             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 141                 return -EIO;
 142
 143         if (kstrtou32(buf, 0, &flush_arg))
 144                 return -EINVAL;
 145
 146         if (iwl_mvm_has_new_tx_api(mvm)) {
 147                 IWL_DEBUG_TX_QUEUES(mvm,
 148                                     "FLUSHING all tids queues on sta_id = %d\n",
 149                                     flush_arg);
 150                 mutex_lock(&mvm->mutex);
 151                 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFF, 0) ? : count;
 152                 mutex_unlock(&mvm->mutex);
 153                 return ret;
 154         }
 155
 156         IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
 157                             flush_arg);
 158
 159         mutex_lock(&mvm->mutex);
 160         ret =  iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count;
 161         mutex_unlock(&mvm->mutex);
 162
 163         return ret;
 164 }
 165
 166 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
 167                                          size_t count, loff_t *ppos)
 168 {
 169         struct iwl_mvm_sta *mvmsta;
 170         int sta_id, drain, ret;
 171
 172         if (!iwl_mvm_firmware_running(mvm) ||
 173             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 174                 return -EIO;
 175
 176         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 177                 return -EINVAL;
 178         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 179                 return -EINVAL;
 180         if (drain < 0 || drain > 1)
 181                 return -EINVAL;
 182
 183         mutex_lock(&mvm->mutex);
 184
 185         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 186
 187         if (!mvmsta)
 188                 ret = -ENOENT;
 189         else
 190                 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
 191
 192         mutex_unlock(&mvm->mutex);
 193
 194         return ret;
 195 }
 196
 197 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 198                                    size_t count, loff_t *ppos)
 199 {
 200         struct iwl_mvm *mvm = file->private_data;
 201         const struct fw_img *img;
 202         unsigned int ofs, len;
 203         size_t ret;
 204         u8 *ptr;
 205
 206         if (!iwl_mvm_firmware_running(mvm))
 207                 return -EINVAL;
 208
 209         /* default is to dump the entire data segment */
 210         img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
 211         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 212         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 213
 214         if (mvm->dbgfs_sram_len) {
 215                 ofs = mvm->dbgfs_sram_offset;
 216                 len = mvm->dbgfs_sram_len;
 217         }
 218
 219         ptr = kzalloc(len, GFP_KERNEL);
 220         if (!ptr)
 221                 return -ENOMEM;
 222
 223         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 224
 225         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 226
 227         kfree(ptr);
 228
 229         return ret;
 230 }
 231
 232 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 233                                     size_t count, loff_t *ppos)
 234 {
 235         const struct fw_img *img;
 236         u32 offset, len;
 237         u32 img_offset, img_len;
 238
 239         if (!iwl_mvm_firmware_running(mvm))
 240                 return -EINVAL;
 241
 242         img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
 243         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 244         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 245
 246         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 247                 if ((offset & 0x3) || (len & 0x3))
 248                         return -EINVAL;
 249
 250                 if (offset + len > img_offset + img_len)
 251                         return -EINVAL;
 252
 253                 mvm->dbgfs_sram_offset = offset;
 254                 mvm->dbgfs_sram_len = len;
 255         } else {
 256                 mvm->dbgfs_sram_offset = 0;
 257                 mvm->dbgfs_sram_len = 0;
 258         }
 259
 260         return count;
 261 }
 262
 263 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
 264                                                   char __user *user_buf,
 265                                                   size_t count, loff_t *ppos)
 266 {
 267         struct iwl_mvm *mvm = file->private_data;
 268         char buf[16];
 269         int pos;
 270
 271         if (!mvm->temperature_test)
 272                 pos = scnprintf(buf , sizeof(buf), "disabled\n");
 273         else
 274                 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
 275
 276         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 277 }
 278
 279 /*
 280  * Set NIC Temperature
 281  * Cause the driver to ignore the actual NIC temperature reported by the FW
 282  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
 283  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
 284  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
 285  */
 286 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
 287                                                    char *buf, size_t count,
 288                                                    loff_t *ppos)
 289 {
 290         int temperature;
 291
 292         if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
 293                 return -EIO;
 294
 295         if (kstrtoint(buf, 10, &temperature))
 296                 return -EINVAL;
 297         /* not a legal temperature */
 298         if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
 299              temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
 300             temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
 301                 return -EINVAL;
 302
 303         mutex_lock(&mvm->mutex);
 304         if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
 305                 if (!mvm->temperature_test)
 306                         goto out;
 307
 308                 mvm->temperature_test = false;
 309                 /* Since we can't read the temp while awake, just set
 310                  * it to zero until we get the next RX stats from the
 311                  * firmware.
 312                  */
 313                 mvm->temperature = 0;
 314         } else {
 315                 mvm->temperature_test = true;
 316                 mvm->temperature = temperature;
 317         }
 318         IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
 319                        mvm->temperature_test ? "En" : "Dis" ,
 320                        mvm->temperature);
 321         /* handle the temperature change */
 322         iwl_mvm_tt_handler(mvm);
 323
 324 out:
 325         mutex_unlock(&mvm->mutex);
 326
 327         return count;
 328 }
 329
 330 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
 331                                        char __user *user_buf,
 332                                        size_t count, loff_t *ppos)
 333 {
 334         struct iwl_mvm *mvm = file->private_data;
 335         char buf[16];
 336         int pos, ret;
 337         s32 temp;
 338
 339         if (!iwl_mvm_firmware_running(mvm))
 340                 return -EIO;
 341
 342         mutex_lock(&mvm->mutex);
 343         ret = iwl_mvm_get_temp(mvm, &temp);
 344         mutex_unlock(&mvm->mutex);
 345
 346         if (ret)
 347                 return -EIO;
 348
 349         pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
 350
 351         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 352 }
 353
 354 #ifdef CONFIG_ACPI
 355 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
 356                                               char __user *user_buf,
 357                                               size_t count, loff_t *ppos)
 358 {
 359         struct iwl_mvm *mvm = file->private_data;
 360         char buf[256];
 361         int pos = 0;
 362         int bufsz = sizeof(buf);
 363         int tbl_idx;
 364         u8 *value;
 365
 366         if (!iwl_mvm_firmware_running(mvm))
 367                 return -EIO;
 368
 369         mutex_lock(&mvm->mutex);
 370         tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
 371         if (tbl_idx < 0) {
 372                 mutex_unlock(&mvm->mutex);
 373                 return tbl_idx;
 374         }
 375
 376         if (!tbl_idx) {
 377                 pos = scnprintf(buf, bufsz,
 378                                 "SAR geographic profile disabled\n");
 379         } else {
 380                 value = &mvm->geo_profiles[tbl_idx - 1].values[0];
 381
 382                 pos += scnprintf(buf + pos, bufsz - pos,
 383                                  "Use geographic profile %d\n", tbl_idx);
 384                 pos += scnprintf(buf + pos, bufsz - pos,
 385                                  "2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
 386                                  value[1], value[2], value[0]);
 387                 pos += scnprintf(buf + pos, bufsz - pos,
 388                                  "5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
 389                                  value[4], value[5], value[3]);
 390         }
 391         mutex_unlock(&mvm->mutex);
 392
 393         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 394 }
 395 #endif
 396
 397 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 398                                        size_t count, loff_t *ppos)
 399 {
 400         struct iwl_mvm *mvm = file->private_data;
 401         struct ieee80211_sta *sta;
 402         char buf[400];
 403         int i, pos = 0, bufsz = sizeof(buf);
 404
 405         mutex_lock(&mvm->mutex);
 406
 407         for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
 408                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 409                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 410                                                 lockdep_is_held(&mvm->mutex));
 411                 if (!sta)
 412                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 413                 else if (IS_ERR(sta))
 414                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 415                                          PTR_ERR(sta));
 416                 else
 417                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 418                                          sta->addr);
 419         }
 420
 421         mutex_unlock(&mvm->mutex);
 422
 423         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 424 }
 425
 426 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
 427                                       size_t count, loff_t *ppos)
 428 {
 429         struct ieee80211_sta *sta = file->private_data;
 430         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 431         struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
 432         struct iwl_mvm *mvm = lq_sta->pers.drv;
 433         static const size_t bufsz = 2048;
 434         char *buff;
 435         int desc = 0;
 436         ssize_t ret;
 437
 438         buff = kmalloc(bufsz, GFP_KERNEL);
 439         if (!buff)
 440                 return -ENOMEM;
 441
 442         mutex_lock(&mvm->mutex);
 443
 444         desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
 445                           lq_sta->pers.sta_id);
 446         desc += scnprintf(buff + desc, bufsz - desc,
 447                           "fixed rate 0x%X\n",
 448                           lq_sta->pers.dbg_fixed_rate);
 449         desc += scnprintf(buff + desc, bufsz - desc,
 450                           "A-MPDU size limit %d\n",
 451                           lq_sta->pers.dbg_agg_frame_count_lim);
 452         desc += scnprintf(buff + desc, bufsz - desc,
 453                           "valid_tx_ant %s%s%s\n",
 454                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
 455                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "",
 456                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : "");
 457         desc += scnprintf(buff + desc, bufsz - desc,
 458                           "last tx rate=0x%X ",
 459                           lq_sta->last_rate_n_flags);
 460
 461         desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
 462                                      lq_sta->last_rate_n_flags);
 463         mutex_unlock(&mvm->mutex);
 464
 465         ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
 466         kfree(buff);
 467         return ret;
 468 }
 469
 470 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 471                                                 char __user *user_buf,
 472                                                 size_t count, loff_t *ppos)
 473 {
 474         struct iwl_mvm *mvm = file->private_data;
 475         char buf[64];
 476         int bufsz = sizeof(buf);
 477         int pos = 0;
 478
 479         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 480                          mvm->disable_power_off);
 481         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 482                          mvm->disable_power_off_d3);
 483
 484         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 485 }
 486
 487 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 488                                                  size_t count, loff_t *ppos)
 489 {
 490         int ret, val;
 491
 492         if (!iwl_mvm_firmware_running(mvm))
 493                 return -EIO;
 494
 495         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 496                 if (sscanf(buf + 21, "%d", &val) != 1)
 497                         return -EINVAL;
 498                 mvm->disable_power_off = val;
 499         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 500                 if (sscanf(buf + 21, "%d", &val) != 1)
 501                         return -EINVAL;
 502                 mvm->disable_power_off_d3 = val;
 503         } else {
 504                 return -EINVAL;
 505         }
 506
 507         mutex_lock(&mvm->mutex);
 508         ret = iwl_mvm_power_update_device(mvm);
 509         mutex_unlock(&mvm->mutex);
 510
 511         return ret ?: count;
 512 }
 513
 514 static
 515 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
 516                            int pos, int bufsz)
 517 {
 518         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 519
 520         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 521         BT_MBOX_PRINT(0, LE_PROF1, false);
 522         BT_MBOX_PRINT(0, LE_PROF2, false);
 523         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 524         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 525         BT_MBOX_PRINT(0, INBAND_S, false);
 526         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 527         BT_MBOX_PRINT(0, LE_SCAN, false);
 528         BT_MBOX_PRINT(0, LE_ADV, false);
 529         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 530         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 531
 532         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 533
 534         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 535         BT_MBOX_PRINT(1, IP_SR, false);
 536         BT_MBOX_PRINT(1, LE_MSTR, false);
 537         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 538         BT_MBOX_PRINT(1, MSG_TYPE, false);
 539         BT_MBOX_PRINT(1, SSN, true);
 540
 541         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 542
 543         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 544         BT_MBOX_PRINT(2, PAG, false);
 545         BT_MBOX_PRINT(2, INQUIRY, false);
 546         BT_MBOX_PRINT(2, CONN, false);
 547         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 548         BT_MBOX_PRINT(2, DISC, false);
 549         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 550         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 551         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 552         BT_MBOX_PRINT(2, SCO_DURATION, true);
 553
 554         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 555
 556         BT_MBOX_PRINT(3, SCO_STATE, false);
 557         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 558         BT_MBOX_PRINT(3, A2DP_STATE, false);
 559         BT_MBOX_PRINT(3, A2DP_SRC, false);
 560         BT_MBOX_PRINT(3, ACL_STATE, false);
 561         BT_MBOX_PRINT(3, MSTR_STATE, false);
 562         BT_MBOX_PRINT(3, OBX_STATE, false);
 563         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 564         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 565         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 566         BT_MBOX_PRINT(3, INBAND_P, false);
 567         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 568         BT_MBOX_PRINT(3, SSN_2, false);
 569         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 570
 571         return pos;
 572 }
 573
 574 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 575                                        size_t count, loff_t *ppos)
 576 {
 577         struct iwl_mvm *mvm = file->private_data;
 578         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 579         char *buf;
 580         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 581
 582         buf = kmalloc(bufsz, GFP_KERNEL);
 583         if (!buf)
 584                 return -ENOMEM;
 585
 586         mutex_lock(&mvm->mutex);
 587
 588         pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
 589
 590         pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
 591                          notif->bt_ci_compliance);
 592         pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
 593                          le32_to_cpu(notif->primary_ch_lut));
 594         pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
 595                          le32_to_cpu(notif->secondary_ch_lut));
 596         pos += scnprintf(buf + pos,
 597                          bufsz - pos, "bt_activity_grading = %d\n",
 598                          le32_to_cpu(notif->bt_activity_grading));
 599         pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
 600                          notif->rrc_status & 0xF);
 601         pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
 602                          notif->ttc_status & 0xF);
 603
 604         pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
 605                          IWL_MVM_BT_COEX_SYNC2SCO);
 606         pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
 607                          IWL_MVM_BT_COEX_MPLUT);
 608
 609         mutex_unlock(&mvm->mutex);
 610
 611         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 612         kfree(buf);
 613
 614         return ret;
 615 }
 616 #undef BT_MBOX_PRINT
 617
 618 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 619                                      size_t count, loff_t *ppos)
 620 {
 621         struct iwl_mvm *mvm = file->private_data;
 622         struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 623         char buf[256];
 624         int bufsz = sizeof(buf);
 625         int pos = 0;
 626
 627         mutex_lock(&mvm->mutex);
 628
 629         pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
 630         pos += scnprintf(buf + pos, bufsz - pos,
 631                          "\tPrimary Channel Bitmap 0x%016llx\n",
 632                          le64_to_cpu(cmd->bt_primary_ci));
 633         pos += scnprintf(buf + pos, bufsz - pos,
 634                          "\tSecondary Channel Bitmap 0x%016llx\n",
 635                          le64_to_cpu(cmd->bt_secondary_ci));
 636
 637         mutex_unlock(&mvm->mutex);
 638
 639         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 640 }
 641
 642 static ssize_t
 643 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 644                            size_t count, loff_t *ppos)
 645 {
 646         u32 bt_tx_prio;
 647
 648         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 649                 return -EINVAL;
 650         if (bt_tx_prio > 4)
 651                 return -EINVAL;
 652
 653         mvm->bt_tx_prio = bt_tx_prio;
 654
 655         return count;
 656 }
 657
 658 static ssize_t
 659 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
 660                              size_t count, loff_t *ppos)
 661 {
 662         static const char * const modes_str[BT_FORCE_ANT_MAX] = {
 663                 [BT_FORCE_ANT_DIS] = "dis",
 664                 [BT_FORCE_ANT_AUTO] = "auto",
 665                 [BT_FORCE_ANT_BT] = "bt",
 666                 [BT_FORCE_ANT_WIFI] = "wifi",
 667         };
 668         int ret, bt_force_ant_mode;
 669
 670         ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
 671         if (ret < 0)
 672                 return ret;
 673
 674         bt_force_ant_mode = ret;
 675         ret = 0;
 676         mutex_lock(&mvm->mutex);
 677         if (mvm->bt_force_ant_mode == bt_force_ant_mode)
 678                 goto out;
 679
 680         mvm->bt_force_ant_mode = bt_force_ant_mode;
 681         IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
 682                        modes_str[mvm->bt_force_ant_mode]);
 683
 684         if (iwl_mvm_firmware_running(mvm))
 685                 ret = iwl_mvm_send_bt_init_conf(mvm);
 686         else
 687                 ret = 0;
 688
 689 out:
 690         mutex_unlock(&mvm->mutex);
 691         return ret ?: count;
 692 }
 693
 694 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
 695                                      size_t count, loff_t *ppos)
 696 {
 697         struct iwl_mvm *mvm = file->private_data;
 698         char *buff, *pos, *endpos;
 699         static const size_t bufsz = 1024;
 700         int ret;
 701
 702         buff = kmalloc(bufsz, GFP_KERNEL);
 703         if (!buff)
 704                 return -ENOMEM;
 705
 706         pos = buff;
 707         endpos = pos + bufsz;
 708
 709         pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
 710                          mvm->trans->cfg->fw_name_pre);
 711         pos += scnprintf(pos, endpos - pos, "FW: %s\n",
 712                          mvm->fwrt.fw->human_readable);
 713         pos += scnprintf(pos, endpos - pos, "Device: %s\n",
 714                          mvm->fwrt.trans->cfg->name);
 715         pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
 716                          mvm->fwrt.dev->bus->name);
 717
 718         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 719         kfree(buff);
 720
 721         return ret;
 722 }
 723
 724 #define PRINT_STATS_LE32(_struct, _memb)                                \
 725                          pos += scnprintf(buf + pos, bufsz - pos,       \
 726                                           fmt_table, #_memb,            \
 727                                           le32_to_cpu(_struct->_memb))
 728
 729 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 730                                           char __user *user_buf, size_t count,
 731                                           loff_t *ppos)
 732 {
 733         struct iwl_mvm *mvm = file->private_data;
 734         static const char *fmt_table = "\t%-30s %10u\n";
 735         static const char *fmt_header = "%-32s\n";
 736         int pos = 0;
 737         char *buf;
 738         int ret;
 739         size_t bufsz;
 740
 741         if (iwl_mvm_has_new_rx_stats_api(mvm))
 742                 bufsz = ((sizeof(struct mvm_statistics_rx) /
 743                           sizeof(__le32)) * 43) + (4 * 33) + 1;
 744         else
 745                 /* 43 = size of each data line; 33 = size of each header */
 746                 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
 747                           sizeof(__le32)) * 43) + (4 * 33) + 1;
 748
 749         buf = kzalloc(bufsz, GFP_KERNEL);
 750         if (!buf)
 751                 return -ENOMEM;
 752
 753         mutex_lock(&mvm->mutex);
 754
 755         if (iwl_mvm_firmware_running(mvm))
 756                 iwl_mvm_request_statistics(mvm, false);
 757
 758         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 759                          "Statistics_Rx - OFDM");
 760         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 761                 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
 762
 763                 PRINT_STATS_LE32(ofdm, ina_cnt);
 764                 PRINT_STATS_LE32(ofdm, fina_cnt);
 765                 PRINT_STATS_LE32(ofdm, plcp_err);
 766                 PRINT_STATS_LE32(ofdm, crc32_err);
 767                 PRINT_STATS_LE32(ofdm, overrun_err);
 768                 PRINT_STATS_LE32(ofdm, early_overrun_err);
 769                 PRINT_STATS_LE32(ofdm, crc32_good);
 770                 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
 771                 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
 772                 PRINT_STATS_LE32(ofdm, sfd_timeout);
 773                 PRINT_STATS_LE32(ofdm, fina_timeout);
 774                 PRINT_STATS_LE32(ofdm, unresponded_rts);
 775                 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 776                 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
 777                 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
 778                 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 779                 PRINT_STATS_LE32(ofdm, dsp_self_kill);
 780                 PRINT_STATS_LE32(ofdm, mh_format_err);
 781                 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
 782                 PRINT_STATS_LE32(ofdm, reserved);
 783         } else {
 784                 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
 785
 786                 PRINT_STATS_LE32(ofdm, unresponded_rts);
 787                 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 788                 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 789                 PRINT_STATS_LE32(ofdm, dsp_self_kill);
 790                 PRINT_STATS_LE32(ofdm, reserved);
 791         }
 792
 793         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 794                          "Statistics_Rx - CCK");
 795         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 796                 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
 797
 798                 PRINT_STATS_LE32(cck, ina_cnt);
 799                 PRINT_STATS_LE32(cck, fina_cnt);
 800                 PRINT_STATS_LE32(cck, plcp_err);
 801                 PRINT_STATS_LE32(cck, crc32_err);
 802                 PRINT_STATS_LE32(cck, overrun_err);
 803                 PRINT_STATS_LE32(cck, early_overrun_err);
 804                 PRINT_STATS_LE32(cck, crc32_good);
 805                 PRINT_STATS_LE32(cck, false_alarm_cnt);
 806                 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
 807                 PRINT_STATS_LE32(cck, sfd_timeout);
 808                 PRINT_STATS_LE32(cck, fina_timeout);
 809                 PRINT_STATS_LE32(cck, unresponded_rts);
 810                 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 811                 PRINT_STATS_LE32(cck, sent_ack_cnt);
 812                 PRINT_STATS_LE32(cck, sent_cts_cnt);
 813                 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 814                 PRINT_STATS_LE32(cck, dsp_self_kill);
 815                 PRINT_STATS_LE32(cck, mh_format_err);
 816                 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
 817                 PRINT_STATS_LE32(cck, reserved);
 818         } else {
 819                 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
 820
 821                 PRINT_STATS_LE32(cck, unresponded_rts);
 822                 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 823                 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 824                 PRINT_STATS_LE32(cck, dsp_self_kill);
 825                 PRINT_STATS_LE32(cck, reserved);
 826         }
 827
 828         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 829                          "Statistics_Rx - GENERAL");
 830         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 831                 struct mvm_statistics_rx_non_phy_v3 *general =
 832                         &mvm->rx_stats_v3.general;
 833
 834                 PRINT_STATS_LE32(general, bogus_cts);
 835                 PRINT_STATS_LE32(general, bogus_ack);
 836                 PRINT_STATS_LE32(general, non_bssid_frames);
 837                 PRINT_STATS_LE32(general, filtered_frames);
 838                 PRINT_STATS_LE32(general, non_channel_beacons);
 839                 PRINT_STATS_LE32(general, channel_beacons);
 840                 PRINT_STATS_LE32(general, num_missed_bcon);
 841                 PRINT_STATS_LE32(general, adc_rx_saturation_time);
 842                 PRINT_STATS_LE32(general, ina_detection_search_time);
 843                 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 844                 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 845                 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 846                 PRINT_STATS_LE32(general, interference_data_flag);
 847                 PRINT_STATS_LE32(general, channel_load);
 848                 PRINT_STATS_LE32(general, dsp_false_alarms);
 849                 PRINT_STATS_LE32(general, beacon_rssi_a);
 850                 PRINT_STATS_LE32(general, beacon_rssi_b);
 851                 PRINT_STATS_LE32(general, beacon_rssi_c);
 852                 PRINT_STATS_LE32(general, beacon_energy_a);
 853                 PRINT_STATS_LE32(general, beacon_energy_b);
 854                 PRINT_STATS_LE32(general, beacon_energy_c);
 855                 PRINT_STATS_LE32(general, num_bt_kills);
 856                 PRINT_STATS_LE32(general, mac_id);
 857                 PRINT_STATS_LE32(general, directed_data_mpdu);
 858         } else {
 859                 struct mvm_statistics_rx_non_phy *general =
 860                         &mvm->rx_stats.general;
 861
 862                 PRINT_STATS_LE32(general, bogus_cts);
 863                 PRINT_STATS_LE32(general, bogus_ack);
 864                 PRINT_STATS_LE32(general, non_channel_beacons);
 865                 PRINT_STATS_LE32(general, channel_beacons);
 866                 PRINT_STATS_LE32(general, num_missed_bcon);
 867                 PRINT_STATS_LE32(general, adc_rx_saturation_time);
 868                 PRINT_STATS_LE32(general, ina_detection_search_time);
 869                 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 870                 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 871                 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 872                 PRINT_STATS_LE32(general, interference_data_flag);
 873                 PRINT_STATS_LE32(general, channel_load);
 874                 PRINT_STATS_LE32(general, beacon_rssi_a);
 875                 PRINT_STATS_LE32(general, beacon_rssi_b);
 876                 PRINT_STATS_LE32(general, beacon_rssi_c);
 877                 PRINT_STATS_LE32(general, beacon_energy_a);
 878                 PRINT_STATS_LE32(general, beacon_energy_b);
 879                 PRINT_STATS_LE32(general, beacon_energy_c);
 880                 PRINT_STATS_LE32(general, num_bt_kills);
 881                 PRINT_STATS_LE32(general, mac_id);
 882         }
 883
 884         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 885                          "Statistics_Rx - HT");
 886         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 887                 struct mvm_statistics_rx_ht_phy_v1 *ht =
 888                         &mvm->rx_stats_v3.ofdm_ht;
 889
 890                 PRINT_STATS_LE32(ht, plcp_err);
 891                 PRINT_STATS_LE32(ht, overrun_err);
 892                 PRINT_STATS_LE32(ht, early_overrun_err);
 893                 PRINT_STATS_LE32(ht, crc32_good);
 894                 PRINT_STATS_LE32(ht, crc32_err);
 895                 PRINT_STATS_LE32(ht, mh_format_err);
 896                 PRINT_STATS_LE32(ht, agg_crc32_good);
 897                 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 898                 PRINT_STATS_LE32(ht, agg_cnt);
 899                 PRINT_STATS_LE32(ht, unsupport_mcs);
 900         } else {
 901                 struct mvm_statistics_rx_ht_phy *ht =
 902                         &mvm->rx_stats.ofdm_ht;
 903
 904                 PRINT_STATS_LE32(ht, mh_format_err);
 905                 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 906                 PRINT_STATS_LE32(ht, agg_cnt);
 907                 PRINT_STATS_LE32(ht, unsupport_mcs);
 908         }
 909
 910         mutex_unlock(&mvm->mutex);
 911
 912         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 913         kfree(buf);
 914
 915         return ret;
 916 }
 917 #undef PRINT_STAT_LE32
 918
 919 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 920                                           char __user *user_buf, size_t count,
 921                                           loff_t *ppos,
 922                                           struct iwl_mvm_frame_stats *stats)
 923 {
 924         char *buff, *pos, *endpos;
 925         int idx, i;
 926         int ret;
 927         static const size_t bufsz = 1024;
 928
 929         buff = kmalloc(bufsz, GFP_KERNEL);
 930         if (!buff)
 931                 return -ENOMEM;
 932
 933         spin_lock_bh(&mvm->drv_stats_lock);
 934
 935         pos = buff;
 936         endpos = pos + bufsz;
 937
 938         pos += scnprintf(pos, endpos - pos,
 939                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 940                          stats->legacy_frames,
 941                          stats->ht_frames,
 942                          stats->vht_frames);
 943         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 944                          stats->bw_20_frames,
 945                          stats->bw_40_frames,
 946                          stats->bw_80_frames);
 947         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 948                          stats->ngi_frames,
 949                          stats->sgi_frames);
 950         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 951                          stats->siso_frames,
 952                          stats->mimo2_frames);
 953         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 954                          stats->fail_frames,
 955                          stats->success_frames);
 956         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 957                          stats->agg_frames);
 958         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 959                          stats->ampdu_count);
 960         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 961                          stats->ampdu_count > 0 ?
 962                          (stats->agg_frames / stats->ampdu_count) : 0);
 963
 964         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 965
 966         idx = stats->last_frame_idx - 1;
 967         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 968                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 969                 if (stats->last_rates[idx] == 0)
 970                         continue;
 971                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 972                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 973                 pos += rs_pretty_print_rate(pos, endpos - pos,
 974                                             stats->last_rates[idx]);
 975         }
 976         spin_unlock_bh(&mvm->drv_stats_lock);
 977
 978         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 979         kfree(buff);
 980
 981         return ret;
 982 }
 983
 984 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 985                                            char __user *user_buf, size_t count,
 986                                            loff_t *ppos)
 987 {
 988         struct iwl_mvm *mvm = file->private_data;
 989
 990         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 991                                           &mvm->drv_rx_stats);
 992 }
 993
 994 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 995                                           size_t count, loff_t *ppos)
 996 {
 997         int __maybe_unused ret;
 998
 999         if (!iwl_mvm_firmware_running(mvm))
1000                 return -EIO;
1001
1002         mutex_lock(&mvm->mutex);
1003
1004         /* allow one more restart that we're provoking here */
1005         if (mvm->fw_restart >= 0)
1006                 mvm->fw_restart++;
1007
1008         /* take the return value to make compiler happy - it will fail anyway */
1009         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
1010
1011         mutex_unlock(&mvm->mutex);
1012
1013         return count;
1014 }
1015
1016 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1017                                       size_t count, loff_t *ppos)
1018 {
1019         int ret;
1020
1021         if (!iwl_mvm_firmware_running(mvm))
1022                 return -EIO;
1023
1024         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
1025         if (ret)
1026                 return ret;
1027
1028         iwl_force_nmi(mvm->trans);
1029
1030         iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
1031
1032         return count;
1033 }
1034
1035 static ssize_t
1036 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1037                                 char __user *user_buf,
1038                                 size_t count, loff_t *ppos)
1039 {
1040         struct iwl_mvm *mvm = file->private_data;
1041         int pos = 0;
1042         char buf[32];
1043         const size_t bufsz = sizeof(buf);
1044
1045         /* print which antennas were set for the scan command by the user */
1046         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1047         if (mvm->scan_rx_ant & ANT_A)
1048                 pos += scnprintf(buf + pos, bufsz - pos, "A");
1049         if (mvm->scan_rx_ant & ANT_B)
1050                 pos += scnprintf(buf + pos, bufsz - pos, "B");
1051         if (mvm->scan_rx_ant & ANT_C)
1052                 pos += scnprintf(buf + pos, bufsz - pos, "C");
1053         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
1054
1055         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1056 }
1057
1058 static ssize_t
1059 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1060                                  size_t count, loff_t *ppos)
1061 {
1062         u8 scan_rx_ant;
1063
1064         if (!iwl_mvm_firmware_running(mvm))
1065                 return -EIO;
1066
1067         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1068                 return -EINVAL;
1069         if (scan_rx_ant > ANT_ABC)
1070                 return -EINVAL;
1071         if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1072                 return -EINVAL;
1073
1074         if (mvm->scan_rx_ant != scan_rx_ant) {
1075                 mvm->scan_rx_ant = scan_rx_ant;
1076                 if (fw_has_capa(&mvm->fw->ucode_capa,
1077                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1078                         iwl_mvm_config_scan(mvm);
1079         }
1080
1081         return count;
1082 }
1083
1084 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1085                                                char *buf, size_t count,
1086                                                loff_t *ppos)
1087 {
1088         struct iwl_rss_config_cmd cmd = {
1089                 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1090                 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1091                              IWL_RSS_HASH_TYPE_IPV4_UDP |
1092                              IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1093                              IWL_RSS_HASH_TYPE_IPV6_TCP |
1094                              IWL_RSS_HASH_TYPE_IPV6_UDP |
1095                              IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1096         };
1097         int ret, i, num_repeats, nbytes = count / 2;
1098
1099         ret = hex2bin(cmd.indirection_table, buf, nbytes);
1100         if (ret)
1101                 return ret;
1102
1103         /*
1104          * The input is the redirection table, partial or full.
1105          * Repeat the pattern if needed.
1106          * For example, input of 01020F will be repeated 42 times,
1107          * indirecting RSS hash results to queues 1, 2, 15 (skipping
1108          * queues 3 - 14).
1109          */
1110         num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1111         for (i = 1; i < num_repeats; i++)
1112                 memcpy(&cmd.indirection_table[i * nbytes],
1113                        cmd.indirection_table, nbytes);
1114         /* handle cut in the middle pattern for the last places */
1115         memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1116                ARRAY_SIZE(cmd.indirection_table) % nbytes);
1117
1118         netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1119
1120         mutex_lock(&mvm->mutex);
1121         if (iwl_mvm_firmware_running(mvm))
1122                 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1123                                            sizeof(cmd), &cmd);
1124         else
1125                 ret = 0;
1126         mutex_unlock(&mvm->mutex);
1127
1128         return ret ?: count;
1129 }
1130
1131 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1132                                              char *buf, size_t count,
1133                                              loff_t *ppos)
1134 {
1135         struct iwl_rx_cmd_buffer rxb = {
1136                 ._rx_page_order = 0,
1137                 .truesize = 0, /* not used */
1138                 ._offset = 0,
1139         };
1140         struct iwl_rx_packet *pkt;
1141         struct iwl_rx_mpdu_desc *desc;
1142         int bin_len = count / 2;
1143         int ret = -EINVAL;
1144         size_t mpdu_cmd_hdr_size =
1145                 (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) ?
1146                 sizeof(struct iwl_rx_mpdu_desc) :
1147                 IWL_RX_DESC_SIZE_V1;
1148
1149         if (!iwl_mvm_firmware_running(mvm))
1150                 return -EIO;
1151
1152         /* supporting only 9000 descriptor */
1153         if (!mvm->trans->cfg->mq_rx_supported)
1154                 return -ENOTSUPP;
1155
1156         rxb._page = alloc_pages(GFP_ATOMIC, 0);
1157         if (!rxb._page)
1158                 return -ENOMEM;
1159         pkt = rxb_addr(&rxb);
1160
1161         ret = hex2bin(page_address(rxb._page), buf, bin_len);
1162         if (ret)
1163                 goto out;
1164
1165         /* avoid invalid memory access */
1166         if (bin_len < sizeof(*pkt) + mpdu_cmd_hdr_size)
1167                 goto out;
1168
1169         /* check this is RX packet */
1170         if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) !=
1171             WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))
1172                 goto out;
1173
1174         /* check the length in metadata matches actual received length */
1175         desc = (void *)pkt->data;
1176         if (le16_to_cpu(desc->mpdu_len) !=
1177             (bin_len - mpdu_cmd_hdr_size - sizeof(*pkt)))
1178                 goto out;
1179
1180         local_bh_disable();
1181         iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0);
1182         local_bh_enable();
1183         ret = 0;
1184
1185 out:
1186         iwl_free_rxb(&rxb);
1187
1188         return ret ?: count;
1189 }
1190
1191 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1192 {
1193         struct ieee80211_vif *vif;
1194         struct iwl_mvm_vif *mvmvif;
1195         struct sk_buff *beacon;
1196         struct ieee80211_tx_info *info;
1197         struct iwl_mac_beacon_cmd beacon_cmd = {};
1198         u8 rate;
1199         u16 flags;
1200         int i;
1201
1202         len /= 2;
1203
1204         /* Element len should be represented by u8 */
1205         if (len >= U8_MAX)
1206                 return -EINVAL;
1207
1208         if (!iwl_mvm_firmware_running(mvm))
1209                 return -EIO;
1210
1211         if (!iwl_mvm_has_new_tx_api(mvm) &&
1212             !fw_has_api(&mvm->fw->ucode_capa,
1213                         IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1214                 return -EINVAL;
1215
1216         rcu_read_lock();
1217
1218         for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1219                 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, true);
1220                 if (!vif)
1221                         continue;
1222
1223                 if (vif->type == NL80211_IFTYPE_AP)
1224                         break;
1225         }
1226
1227         if (i == NUM_MAC_INDEX_DRIVER || !vif)
1228                 goto out_err;
1229
1230         mvm->hw->extra_beacon_tailroom = len;
1231
1232         beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL);
1233         if (!beacon)
1234                 goto out_err;
1235
1236         if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1237                 dev_kfree_skb(beacon);
1238                 goto out_err;
1239         }
1240
1241         mvmvif = iwl_mvm_vif_from_mac80211(vif);
1242         info = IEEE80211_SKB_CB(beacon);
1243         rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif);
1244         flags = iwl_mvm_mac80211_idx_to_hwrate(rate);
1245
1246         if (rate == IWL_FIRST_CCK_RATE)
1247                 flags |= IWL_MAC_BEACON_CCK;
1248
1249         beacon_cmd.flags = cpu_to_le16(flags);
1250         beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1251         beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
1252
1253         iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1254                                  &beacon_cmd.tim_size,
1255                                  beacon->data, beacon->len);
1256
1257         mutex_lock(&mvm->mutex);
1258         iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1259                                          sizeof(beacon_cmd));
1260         mutex_unlock(&mvm->mutex);
1261
1262         dev_kfree_skb(beacon);
1263
1264         rcu_read_unlock();
1265         return 0;
1266
1267 out_err:
1268         rcu_read_unlock();
1269         return -EINVAL;
1270 }
1271
1272 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1273                                                 char *buf, size_t count,
1274                                                 loff_t *ppos)
1275 {
1276         int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1277
1278         mvm->hw->extra_beacon_tailroom = 0;
1279         return ret ?: count;
1280 }
1281
1282 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1283                                                         char *buf,
1284                                                         size_t count,
1285                                                         loff_t *ppos)
1286 {
1287         int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1288
1289         mvm->hw->extra_beacon_tailroom = 0;
1290         return ret ?: count;
1291 }
1292
1293 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1294                                           char __user *user_buf,
1295                                           size_t count, loff_t *ppos)
1296 {
1297         struct iwl_mvm *mvm = file->private_data;
1298         int conf;
1299         char buf[8];
1300         const size_t bufsz = sizeof(buf);
1301         int pos = 0;
1302
1303         mutex_lock(&mvm->mutex);
1304         conf = mvm->fwrt.dump.conf;
1305         mutex_unlock(&mvm->mutex);
1306
1307         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1308
1309         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1310 }
1311
1312 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1313                                            char *buf, size_t count,
1314                                            loff_t *ppos)
1315 {
1316         unsigned int conf_id;
1317         int ret;
1318
1319         if (!iwl_mvm_firmware_running(mvm))
1320                 return -EIO;
1321
1322         ret = kstrtouint(buf, 0, &conf_id);
1323         if (ret)
1324                 return ret;
1325
1326         if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1327                 return -EINVAL;
1328
1329         mutex_lock(&mvm->mutex);
1330         ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1331         mutex_unlock(&mvm->mutex);
1332
1333         return ret ?: count;
1334 }
1335
1336 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1337                                               char *buf, size_t count,
1338                                               loff_t *ppos)
1339 {
1340         int ret;
1341
1342         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1343         if (ret)
1344                 return ret;
1345         if (count == 0)
1346                 return 0;
1347
1348         iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1349                            (count - 1));
1350
1351         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1352
1353         return count;
1354 }
1355
1356 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
1357                                              char *buf, size_t count,
1358                                              loff_t *ppos)
1359 {
1360         unsigned int max_amsdu_len;
1361         int ret;
1362
1363         ret = kstrtouint(buf, 0, &max_amsdu_len);
1364         if (ret)
1365                 return ret;
1366
1367         if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
1368                 return -EINVAL;
1369         mvm->max_amsdu_len = max_amsdu_len;
1370
1371         return count;
1372 }
1373
1374 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1375 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1376 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1377                                             char __user *user_buf,
1378                                             size_t count, loff_t *ppos)
1379 {
1380         struct iwl_mvm *mvm = file->private_data;
1381         struct iwl_bcast_filter_cmd cmd;
1382         const struct iwl_fw_bcast_filter *filter;
1383         char *buf;
1384         int bufsz = 1024;
1385         int i, j, pos = 0;
1386         ssize_t ret;
1387
1388         buf = kzalloc(bufsz, GFP_KERNEL);
1389         if (!buf)
1390                 return -ENOMEM;
1391
1392         mutex_lock(&mvm->mutex);
1393         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1394                 ADD_TEXT("None\n");
1395                 mutex_unlock(&mvm->mutex);
1396                 goto out;
1397         }
1398         mutex_unlock(&mvm->mutex);
1399
1400         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1401                 filter = &cmd.filters[i];
1402
1403                 ADD_TEXT("Filter [%d]:\n", i);
1404                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1405                 ADD_TEXT("\tFrame Type: %s\n",
1406                          filter->frame_type ? "IPv4" : "Generic");
1407
1408                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1409                         const struct iwl_fw_bcast_filter_attr *attr;
1410
1411                         attr = &filter->attrs[j];
1412                         if (!attr->mask)
1413                                 break;
1414
1415                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1416                                  j, attr->offset,
1417                                  attr->offset_type ? "IP End" :
1418                                                      "Payload Start",
1419                                  be32_to_cpu(attr->mask),
1420                                  be32_to_cpu(attr->val),
1421                                  le16_to_cpu(attr->reserved1));
1422                 }
1423         }
1424 out:
1425         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1426         kfree(buf);
1427         return ret;
1428 }
1429
1430 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1431                                              size_t count, loff_t *ppos)
1432 {
1433         int pos, next_pos;
1434         struct iwl_fw_bcast_filter filter = {};
1435         struct iwl_bcast_filter_cmd cmd;
1436         u32 filter_id, attr_id, mask, value;
1437         int err = 0;
1438
1439         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1440                    &filter.frame_type, &pos) != 3)
1441                 return -EINVAL;
1442
1443         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1444             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1445                 return -EINVAL;
1446
1447         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1448              attr_id++) {
1449                 struct iwl_fw_bcast_filter_attr *attr =
1450                                 &filter.attrs[attr_id];
1451
1452                 if (pos >= count)
1453                         break;
1454
1455                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1456                            &attr->offset, &attr->offset_type,
1457                            &mask, &value, &next_pos) != 4)
1458                         return -EINVAL;
1459
1460                 attr->mask = cpu_to_be32(mask);
1461                 attr->val = cpu_to_be32(value);
1462                 if (mask)
1463                         filter.num_attrs++;
1464
1465                 pos += next_pos;
1466         }
1467
1468         mutex_lock(&mvm->mutex);
1469         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1470                &filter, sizeof(filter));
1471
1472         /* send updated bcast filtering configuration */
1473         if (iwl_mvm_firmware_running(mvm) &&
1474             mvm->dbgfs_bcast_filtering.override &&
1475             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1476                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1477                                            sizeof(cmd), &cmd);
1478         mutex_unlock(&mvm->mutex);
1479
1480         return err ?: count;
1481 }
1482
1483 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1484                                                  char __user *user_buf,
1485                                                  size_t count, loff_t *ppos)
1486 {
1487         struct iwl_mvm *mvm = file->private_data;
1488         struct iwl_bcast_filter_cmd cmd;
1489         char *buf;
1490         int bufsz = 1024;
1491         int i, pos = 0;
1492         ssize_t ret;
1493
1494         buf = kzalloc(bufsz, GFP_KERNEL);
1495         if (!buf)
1496                 return -ENOMEM;
1497
1498         mutex_lock(&mvm->mutex);
1499         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1500                 ADD_TEXT("None\n");
1501                 mutex_unlock(&mvm->mutex);
1502                 goto out;
1503         }
1504         mutex_unlock(&mvm->mutex);
1505
1506         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1507                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1508
1509                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1510                          i, mac->default_discard, mac->attached_filters);
1511         }
1512 out:
1513         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1514         kfree(buf);
1515         return ret;
1516 }
1517
1518 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1519                                                   char *buf, size_t count,
1520                                                   loff_t *ppos)
1521 {
1522         struct iwl_bcast_filter_cmd cmd;
1523         struct iwl_fw_bcast_mac mac = {};
1524         u32 mac_id, attached_filters;
1525         int err = 0;
1526
1527         if (!mvm->bcast_filters)
1528                 return -ENOENT;
1529
1530         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1531                    &attached_filters) != 3)
1532                 return -EINVAL;
1533
1534         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1535             mac.default_discard > 1 ||
1536             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1537                 return -EINVAL;
1538
1539         mac.attached_filters = cpu_to_le16(attached_filters);
1540
1541         mutex_lock(&mvm->mutex);
1542         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1543                &mac, sizeof(mac));
1544
1545         /* send updated bcast filtering configuration */
1546         if (iwl_mvm_firmware_running(mvm) &&
1547             mvm->dbgfs_bcast_filtering.override &&
1548             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1549                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1550                                            sizeof(cmd), &cmd);
1551         mutex_unlock(&mvm->mutex);
1552
1553         return err ?: count;
1554 }
1555 #endif
1556
1557 #ifdef CONFIG_PM_SLEEP
1558 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1559                                        size_t count, loff_t *ppos)
1560 {
1561         int store;
1562
1563         if (sscanf(buf, "%d", &store) != 1)
1564                 return -EINVAL;
1565
1566         mvm->store_d3_resume_sram = store;
1567
1568         return count;
1569 }
1570
1571 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1572                                       size_t count, loff_t *ppos)
1573 {
1574         struct iwl_mvm *mvm = file->private_data;
1575         const struct fw_img *img;
1576         int ofs, len, pos = 0;
1577         size_t bufsz, ret;
1578         char *buf;
1579         u8 *ptr = mvm->d3_resume_sram;
1580
1581         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1582         len = img->sec[IWL_UCODE_SECTION_DATA].len;
1583
1584         bufsz = len * 4 + 256;
1585         buf = kzalloc(bufsz, GFP_KERNEL);
1586         if (!buf)
1587                 return -ENOMEM;
1588
1589         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1590                          mvm->store_d3_resume_sram ? "en" : "dis");
1591
1592         if (ptr) {
1593                 for (ofs = 0; ofs < len; ofs += 16) {
1594                         pos += scnprintf(buf + pos, bufsz - pos,
1595                                          "0x%.4x %16ph\n", ofs, ptr + ofs);
1596                 }
1597         } else {
1598                 pos += scnprintf(buf + pos, bufsz - pos,
1599                                  "(no data captured)\n");
1600         }
1601
1602         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1603
1604         kfree(buf);
1605
1606         return ret;
1607 }
1608 #endif
1609
1610 #define PRINT_MVM_REF(ref) do {                                         \
1611         if (mvm->refs[ref])                                             \
1612                 pos += scnprintf(buf + pos, bufsz - pos,                \
1613                                  "\t(0x%lx): %d %s\n",                  \
1614                                  BIT(ref), mvm->refs[ref], #ref);       \
1615 } while (0)
1616
1617 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1618                                         char __user *user_buf,
1619                                         size_t count, loff_t *ppos)
1620 {
1621         struct iwl_mvm *mvm = file->private_data;
1622         int i, pos = 0;
1623         char buf[256];
1624         const size_t bufsz = sizeof(buf);
1625         u32 refs = 0;
1626
1627         for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1628                 if (mvm->refs[i])
1629                         refs |= BIT(i);
1630
1631         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1632                          refs);
1633
1634         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1635         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1636         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1637         PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1638         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1639         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1640         PRINT_MVM_REF(IWL_MVM_REF_USER);
1641         PRINT_MVM_REF(IWL_MVM_REF_TX);
1642         PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1643         PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1644         PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1645         PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1646         PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1647         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1648         PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1649         PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1650         PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1651         PRINT_MVM_REF(IWL_MVM_REF_NMI);
1652         PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1653         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1654         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1655         PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1656         PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1657         PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD);
1658         PRINT_MVM_REF(IWL_MVM_REF_RX);
1659
1660         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1661 }
1662
1663 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1664                                          size_t count, loff_t *ppos)
1665 {
1666         unsigned long value;
1667         int ret;
1668         bool taken;
1669
1670         ret = kstrtoul(buf, 10, &value);
1671         if (ret < 0)
1672                 return ret;
1673
1674         mutex_lock(&mvm->mutex);
1675
1676         taken = mvm->refs[IWL_MVM_REF_USER];
1677         if (value == 1 && !taken)
1678                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1679         else if (value == 0 && taken)
1680                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1681         else
1682                 ret = -EINVAL;
1683
1684         mutex_unlock(&mvm->mutex);
1685
1686         if (ret < 0)
1687                 return ret;
1688         return count;
1689 }
1690
1691 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1692         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1693 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1694         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1695 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1696                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1697                                          &iwl_dbgfs_##name##_ops))      \
1698                         goto err;                                       \
1699         } while (0)
1700 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1701         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1702
1703 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
1704         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1705 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
1706         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1707
1708 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do {  \
1709                 if (!debugfs_create_file(alias, mode, parent, sta,      \
1710                                          &iwl_dbgfs_##name##_ops))      \
1711                         goto err;                                       \
1712         } while (0)
1713 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
1714         MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
1715
1716 static ssize_t
1717 iwl_dbgfs_prph_reg_read(struct file *file,
1718                         char __user *user_buf,
1719                         size_t count, loff_t *ppos)
1720 {
1721         struct iwl_mvm *mvm = file->private_data;
1722         int pos = 0;
1723         char buf[32];
1724         const size_t bufsz = sizeof(buf);
1725         int ret;
1726
1727         if (!mvm->dbgfs_prph_reg_addr)
1728                 return -EINVAL;
1729
1730         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1731         if (ret)
1732                 return ret;
1733
1734         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1735                 mvm->dbgfs_prph_reg_addr,
1736                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1737
1738         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1739
1740         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1741 }
1742
1743 static ssize_t
1744 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1745                          size_t count, loff_t *ppos)
1746 {
1747         u8 args;
1748         u32 value;
1749         int ret;
1750
1751         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1752         /* if we only want to set the reg address - nothing more to do */
1753         if (args == 1)
1754                 goto out;
1755
1756         /* otherwise, make sure we have both address and value */
1757         if (args != 2)
1758                 return -EINVAL;
1759
1760         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1761         if (ret)
1762                 return ret;
1763
1764         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1765
1766         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1767 out:
1768         return count;
1769 }
1770
1771 static ssize_t
1772 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1773                               size_t count, loff_t *ppos)
1774 {
1775         int ret;
1776
1777         if (!iwl_mvm_firmware_running(mvm))
1778                 return -EIO;
1779
1780         mutex_lock(&mvm->mutex);
1781         ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1782         mutex_unlock(&mvm->mutex);
1783
1784         return ret ?: count;
1785 }
1786
1787 struct iwl_mvm_sniffer_apply {
1788         struct iwl_mvm *mvm;
1789         u16 aid;
1790 };
1791
1792 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1793                                   struct iwl_rx_packet *pkt, void *data)
1794 {
1795         struct iwl_mvm_sniffer_apply *apply = data;
1796
1797         apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1798
1799         return true;
1800 }
1801
1802 static ssize_t
1803 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1804                                   size_t count, loff_t *ppos)
1805 {
1806         struct iwl_notification_wait wait;
1807         struct iwl_he_monitor_cmd he_mon_cmd = {};
1808         struct iwl_mvm_sniffer_apply apply = {
1809                 .mvm = mvm,
1810         };
1811         u16 wait_cmds[] = {
1812                 iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD, DATA_PATH_GROUP, 0),
1813         };
1814         u32 aid;
1815         int ret;
1816
1817         if (!iwl_mvm_firmware_running(mvm))
1818                 return -EIO;
1819
1820         ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1821                      &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1822                      &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1823                      &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1824         if (ret != 7)
1825                 return -EINVAL;
1826
1827         he_mon_cmd.aid = cpu_to_le16(aid);
1828
1829         apply.aid = aid;
1830
1831         mutex_lock(&mvm->mutex);
1832
1833         /*
1834          * Use the notification waiter to get our function triggered
1835          * in sequence with other RX. This ensures that frames we get
1836          * on the RX queue _before_ the new configuration is applied
1837          * still have mvm->cur_aid pointing to the old AID, and that
1838          * frames on the RX queue _after_ the firmware processed the
1839          * new configuration (and sent the response, synchronously)
1840          * get mvm->cur_aid correctly set to the new AID.
1841          */
1842         iwl_init_notification_wait(&mvm->notif_wait, &wait,
1843                                    wait_cmds, ARRAY_SIZE(wait_cmds),
1844                                    iwl_mvm_sniffer_apply, &apply);
1845
1846         ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD,
1847                                                    DATA_PATH_GROUP, 0), 0,
1848                                    sizeof(he_mon_cmd), &he_mon_cmd);
1849
1850         /* no need to really wait, we already did anyway */
1851         iwl_remove_notification(&mvm->notif_wait, &wait);
1852
1853         mutex_unlock(&mvm->mutex);
1854
1855         return ret ?: count;
1856 }
1857
1858 static ssize_t
1859 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1860                                   size_t count, loff_t *ppos)
1861 {
1862         struct iwl_mvm *mvm = file->private_data;
1863         u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1864         unsigned int pos = 0;
1865         size_t bufsz = sizeof(buf);
1866         int i;
1867
1868         mutex_lock(&mvm->mutex);
1869
1870         for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1871                 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1872                                  mvm->uapsd_noagg_bssids[i].addr);
1873
1874         mutex_unlock(&mvm->mutex);
1875
1876         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1877 }
1878
1879 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1880
1881 /* Device wide debugfs entries */
1882 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1883 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1884 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1885 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1886 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1887 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1888 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1889 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1890 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1891 MVM_DEBUGFS_READ_FILE_OPS(stations);
1892 MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1893 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1894 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1895 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1896 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1897 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1898 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1899 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1900 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1901 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1902 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1903 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1904 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1905 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1906 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1907 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8);
1908 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1909                            (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1910 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1911 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1912 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1913
1914 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1915
1916 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1917 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1918 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1919 #endif
1920
1921 #ifdef CONFIG_PM_SLEEP
1922 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1923 #endif
1924 #ifdef CONFIG_ACPI
1925 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1926 #endif
1927
1928 MVM_DEBUGFS_WRITE_FILE_OPS(he_sniffer_params, 32);
1929
1930 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1931                                   size_t count, loff_t *ppos)
1932 {
1933         struct iwl_mvm *mvm = file->private_data;
1934         struct iwl_dbg_mem_access_cmd cmd = {};
1935         struct iwl_dbg_mem_access_rsp *rsp;
1936         struct iwl_host_cmd hcmd = {
1937                 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1938                 .data = { &cmd, },
1939                 .len = { sizeof(cmd) },
1940         };
1941         size_t delta;
1942         ssize_t ret, len;
1943
1944         if (!iwl_mvm_firmware_running(mvm))
1945                 return -EIO;
1946
1947         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1948                              DEBUG_GROUP, 0);
1949         cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1950
1951         /* Take care of alignment of both the position and the length */
1952         delta = *ppos & 0x3;
1953         cmd.addr = cpu_to_le32(*ppos - delta);
1954         cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1955                                   (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1956
1957         mutex_lock(&mvm->mutex);
1958         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1959         mutex_unlock(&mvm->mutex);
1960
1961         if (ret < 0)
1962                 return ret;
1963
1964         rsp = (void *)hcmd.resp_pkt->data;
1965         if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1966                 ret = -ENXIO;
1967                 goto out;
1968         }
1969
1970         len = min((size_t)le32_to_cpu(rsp->len) << 2,
1971                   iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1972         len = min(len - delta, count);
1973         if (len < 0) {
1974                 ret = -EFAULT;
1975                 goto out;
1976         }
1977
1978         ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len);
1979         *ppos += ret;
1980
1981 out:
1982         iwl_free_resp(&hcmd);
1983         return ret;
1984 }
1985
1986 static ssize_t iwl_dbgfs_mem_write(struct file *file,
1987                                    const char __user *user_buf, size_t count,
1988                                    loff_t *ppos)
1989 {
1990         struct iwl_mvm *mvm = file->private_data;
1991         struct iwl_dbg_mem_access_cmd *cmd;
1992         struct iwl_dbg_mem_access_rsp *rsp;
1993         struct iwl_host_cmd hcmd = {};
1994         size_t cmd_size;
1995         size_t data_size;
1996         u32 op, len;
1997         ssize_t ret;
1998
1999         if (!iwl_mvm_firmware_running(mvm))
2000                 return -EIO;
2001
2002         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
2003                              DEBUG_GROUP, 0);
2004
2005         if (*ppos & 0x3 || count < 4) {
2006                 op = DEBUG_MEM_OP_WRITE_BYTES;
2007                 len = min(count, (size_t)(4 - (*ppos & 0x3)));
2008                 data_size = len;
2009         } else {
2010                 op = DEBUG_MEM_OP_WRITE;
2011                 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
2012                 data_size = len << 2;
2013         }
2014
2015         cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
2016         cmd = kzalloc(cmd_size, GFP_KERNEL);
2017         if (!cmd)
2018                 return -ENOMEM;
2019
2020         cmd->op = cpu_to_le32(op);
2021         cmd->len = cpu_to_le32(len);
2022         cmd->addr = cpu_to_le32(*ppos);
2023         if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
2024                 kfree(cmd);
2025                 return -EFAULT;
2026         }
2027
2028         hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2029         hcmd.data[0] = (void *)cmd;
2030         hcmd.len[0] = cmd_size;
2031
2032         mutex_lock(&mvm->mutex);
2033         ret = iwl_mvm_send_cmd(mvm, &hcmd);
2034         mutex_unlock(&mvm->mutex);
2035
2036         kfree(cmd);
2037
2038         if (ret < 0)
2039                 return ret;
2040
2041         rsp = (void *)hcmd.resp_pkt->data;
2042         if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
2043                 ret = -ENXIO;
2044                 goto out;
2045         }
2046
2047         ret = data_size;
2048         *ppos += ret;
2049
2050 out:
2051         iwl_free_resp(&hcmd);
2052         return ret;
2053 }
2054
2055 static const struct file_operations iwl_dbgfs_mem_ops = {
2056         .read = iwl_dbgfs_mem_read,
2057         .write = iwl_dbgfs_mem_write,
2058         .open = simple_open,
2059         .llseek = default_llseek,
2060 };
2061
2062 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
2063                              struct ieee80211_vif *vif,
2064                              struct ieee80211_sta *sta,
2065                              struct dentry *dir)
2066 {
2067         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2068
2069         if (iwl_mvm_has_tlc_offload(mvm))
2070                 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
2071
2072         return;
2073 err:
2074         IWL_ERR(mvm, "Can't create the mvm station debugfs entry\n");
2075 }
2076
2077 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
2078 {
2079         struct dentry *bcast_dir __maybe_unused;
2080         char buf[100];
2081
2082         spin_lock_init(&mvm->drv_stats_lock);
2083
2084         mvm->debugfs_dir = dbgfs_dir;
2085
2086         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
2087         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
2088         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
2089         MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
2090         MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, 0400);
2091         MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, 0400);
2092         MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, 0200);
2093         MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, 0200);
2094         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, 0400);
2095         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, 0400);
2096         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, 0400);
2097         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
2098         MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
2099         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
2100         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
2101         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
2102         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
2103         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
2104         MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
2105         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
2106         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
2107         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, 0600);
2108         MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
2109         MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
2110         MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, 0200);
2111         MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
2112         MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
2113         MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
2114         MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
2115         MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
2116 #ifdef CONFIG_ACPI
2117         MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400);
2118 #endif
2119         MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0200);
2120
2121         if (!debugfs_create_bool("enable_scan_iteration_notif",
2122                                  0600,
2123                                  mvm->debugfs_dir,
2124                                  &mvm->scan_iter_notif_enabled))
2125                 goto err;
2126         if (!debugfs_create_bool("drop_bcn_ap_mode", 0600,
2127                                  mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
2128                 goto err;
2129
2130         MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
2131
2132 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2133         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
2134                 bcast_dir = debugfs_create_dir("bcast_filtering",
2135                                                mvm->debugfs_dir);
2136                 if (!bcast_dir)
2137                         goto err;
2138
2139                 if (!debugfs_create_bool("override", 0600,
2140                                          bcast_dir,
2141                                          &mvm->dbgfs_bcast_filtering.override))
2142                         goto err;
2143
2144                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
2145                                            bcast_dir, 0600);
2146                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
2147                                            bcast_dir, 0600);
2148         }
2149 #endif
2150
2151 #ifdef CONFIG_PM_SLEEP
2152         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, 0600);
2153         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
2154         if (!debugfs_create_bool("d3_wake_sysassert", 0600,
2155                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
2156                 goto err;
2157         if (!debugfs_create_u32("last_netdetect_scans", 0400,
2158                                 mvm->debugfs_dir, &mvm->last_netdetect_scans))
2159                 goto err;
2160 #endif
2161
2162         if (!debugfs_create_u8("ps_disabled", 0400,
2163                                mvm->debugfs_dir, &mvm->ps_disabled))
2164                 goto err;
2165         if (!debugfs_create_blob("nvm_hw", 0400,
2166                                  mvm->debugfs_dir, &mvm->nvm_hw_blob))
2167                 goto err;
2168         if (!debugfs_create_blob("nvm_sw", 0400,
2169                                  mvm->debugfs_dir, &mvm->nvm_sw_blob))
2170                 goto err;
2171         if (!debugfs_create_blob("nvm_calib", 0400,
2172                                  mvm->debugfs_dir, &mvm->nvm_calib_blob))
2173                 goto err;
2174         if (!debugfs_create_blob("nvm_prod", 0400,
2175                                  mvm->debugfs_dir, &mvm->nvm_prod_blob))
2176                 goto err;
2177         if (!debugfs_create_blob("nvm_phy_sku", 0400,
2178                                  mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
2179                 goto err;
2180         if (!debugfs_create_blob("nvm_reg", S_IRUSR,
2181                                  mvm->debugfs_dir, &mvm->nvm_reg_blob))
2182                 goto err;
2183
2184         debugfs_create_file("mem", 0600, dbgfs_dir, mvm, &iwl_dbgfs_mem_ops);
2185
2186         /*
2187          * Create a symlink with mac80211. It will be removed when mac80211
2188          * exists (before the opmode exists which removes the target.)
2189          */
2190         snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
2191         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
2192                 goto err;
2193
2194         return 0;
2195 err:
2196         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
2197         return -ENOMEM;
2198 }