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

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   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  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
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  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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  22  * along with this program; if not, write to the Free Software
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  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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  41  * modification, are permitted provided that the following conditions
  42  * are met:
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  45  *    notice, this list of conditions and the following disclaimer.
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  49  *    distribution.
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  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include "mvm.h"
  68 #include "fw/api/tof.h"
  69 #include "debugfs.h"
  70
  71 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
  72                                  struct ieee80211_vif *vif,
  73                                  enum iwl_dbgfs_pm_mask param, int val)
  74 {
  75         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
  76         struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
  77
  78         dbgfs_pm->mask |= param;
  79
  80         switch (param) {
  81         case MVM_DEBUGFS_PM_KEEP_ALIVE: {
  82                 int dtimper = vif->bss_conf.dtim_period ?: 1;
  83                 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
  84
  85                 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
  86                 if (val * MSEC_PER_SEC < 3 * dtimper_msec)
  87                         IWL_WARN(mvm,
  88                                  "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
  89                                  val * MSEC_PER_SEC, 3 * dtimper_msec);
  90                 dbgfs_pm->keep_alive_seconds = val;
  91                 break;
  92         }
  93         case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
  94                 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
  95                                 val ? "enabled" : "disabled");
  96                 dbgfs_pm->skip_over_dtim = val;
  97                 break;
  98         case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
  99                 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
 100                 dbgfs_pm->skip_dtim_periods = val;
 101                 break;
 102         case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
 103                 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
 104                 dbgfs_pm->rx_data_timeout = val;
 105                 break;
 106         case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
 107                 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
 108                 dbgfs_pm->tx_data_timeout = val;
 109                 break;
 110         case MVM_DEBUGFS_PM_LPRX_ENA:
 111                 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
 112                 dbgfs_pm->lprx_ena = val;
 113                 break;
 114         case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
 115                 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
 116                 dbgfs_pm->lprx_rssi_threshold = val;
 117                 break;
 118         case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
 119                 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
 120                 dbgfs_pm->snooze_ena = val;
 121                 break;
 122         case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
 123                 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
 124                 dbgfs_pm->uapsd_misbehaving = val;
 125                 break;
 126         case MVM_DEBUGFS_PM_USE_PS_POLL:
 127                 IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);
 128                 dbgfs_pm->use_ps_poll = val;
 129                 break;
 130         }
 131 }
 132
 133 static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
 134                                          size_t count, loff_t *ppos)
 135 {
 136         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 137         struct iwl_mvm *mvm = mvmvif->mvm;
 138         enum iwl_dbgfs_pm_mask param;
 139         int val, ret;
 140
 141         if (!strncmp("keep_alive=", buf, 11)) {
 142                 if (sscanf(buf + 11, "%d", &val) != 1)
 143                         return -EINVAL;
 144                 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
 145         } else if (!strncmp("skip_over_dtim=", buf, 15)) {
 146                 if (sscanf(buf + 15, "%d", &val) != 1)
 147                         return -EINVAL;
 148                 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
 149         } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
 150                 if (sscanf(buf + 18, "%d", &val) != 1)
 151                         return -EINVAL;
 152                 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
 153         } else if (!strncmp("rx_data_timeout=", buf, 16)) {
 154                 if (sscanf(buf + 16, "%d", &val) != 1)
 155                         return -EINVAL;
 156                 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
 157         } else if (!strncmp("tx_data_timeout=", buf, 16)) {
 158                 if (sscanf(buf + 16, "%d", &val) != 1)
 159                         return -EINVAL;
 160                 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
 161         } else if (!strncmp("lprx=", buf, 5)) {
 162                 if (sscanf(buf + 5, "%d", &val) != 1)
 163                         return -EINVAL;
 164                 param = MVM_DEBUGFS_PM_LPRX_ENA;
 165         } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
 166                 if (sscanf(buf + 20, "%d", &val) != 1)
 167                         return -EINVAL;
 168                 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
 169                     POWER_LPRX_RSSI_THRESHOLD_MIN)
 170                         return -EINVAL;
 171                 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
 172         } else if (!strncmp("snooze_enable=", buf, 14)) {
 173                 if (sscanf(buf + 14, "%d", &val) != 1)
 174                         return -EINVAL;
 175                 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
 176         } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
 177                 if (sscanf(buf + 18, "%d", &val) != 1)
 178                         return -EINVAL;
 179                 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
 180         } else if (!strncmp("use_ps_poll=", buf, 12)) {
 181                 if (sscanf(buf + 12, "%d", &val) != 1)
 182                         return -EINVAL;
 183                 param = MVM_DEBUGFS_PM_USE_PS_POLL;
 184         } else {
 185                 return -EINVAL;
 186         }
 187
 188         mutex_lock(&mvm->mutex);
 189         iwl_dbgfs_update_pm(mvm, vif, param, val);
 190         ret = iwl_mvm_power_update_mac(mvm);
 191         mutex_unlock(&mvm->mutex);
 192
 193         return ret ?: count;
 194 }
 195
 196 static ssize_t iwl_dbgfs_tx_pwr_lmt_read(struct file *file,
 197                                          char __user *user_buf,
 198                                          size_t count, loff_t *ppos)
 199 {
 200         struct ieee80211_vif *vif = file->private_data;
 201         char buf[64];
 202         int bufsz = sizeof(buf);
 203         int pos;
 204
 205         pos = scnprintf(buf, bufsz, "bss limit = %d\n",
 206                         vif->bss_conf.txpower);
 207
 208         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 209 }
 210
 211 static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
 212                                         char __user *user_buf,
 213                                         size_t count, loff_t *ppos)
 214 {
 215         struct ieee80211_vif *vif = file->private_data;
 216         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 217         struct iwl_mvm *mvm = mvmvif->mvm;
 218         char buf[512];
 219         int bufsz = sizeof(buf);
 220         int pos;
 221
 222         pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
 223
 224         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 225 }
 226
 227 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
 228                                          char __user *user_buf,
 229                                          size_t count, loff_t *ppos)
 230 {
 231         struct ieee80211_vif *vif = file->private_data;
 232         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 233         struct iwl_mvm *mvm = mvmvif->mvm;
 234         u8 ap_sta_id;
 235         struct ieee80211_chanctx_conf *chanctx_conf;
 236         char buf[512];
 237         int bufsz = sizeof(buf);
 238         int pos = 0;
 239         int i;
 240
 241         mutex_lock(&mvm->mutex);
 242
 243         ap_sta_id = mvmvif->ap_sta_id;
 244
 245         switch (ieee80211_vif_type_p2p(vif)) {
 246         case NL80211_IFTYPE_ADHOC:
 247                 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
 248                 break;
 249         case NL80211_IFTYPE_STATION:
 250                 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
 251                 break;
 252         case NL80211_IFTYPE_AP:
 253                 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
 254                 break;
 255         case NL80211_IFTYPE_P2P_CLIENT:
 256                 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
 257                 break;
 258         case NL80211_IFTYPE_P2P_GO:
 259                 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
 260                 break;
 261         case NL80211_IFTYPE_P2P_DEVICE:
 262                 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
 263                 break;
 264         default:
 265                 break;
 266         }
 267
 268         pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
 269                          mvmvif->id, mvmvif->color);
 270         pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
 271                          vif->bss_conf.bssid);
 272         pos += scnprintf(buf+pos, bufsz-pos, "Load: %d\n",
 273                          mvm->tcm.result.load[mvmvif->id]);
 274         pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
 275         for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
 276                 pos += scnprintf(buf+pos, bufsz-pos,
 277                                  "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
 278                                  i, mvmvif->queue_params[i].txop,
 279                                  mvmvif->queue_params[i].cw_min,
 280                                  mvmvif->queue_params[i].cw_max,
 281                                  mvmvif->queue_params[i].aifs,
 282                                  mvmvif->queue_params[i].uapsd);
 283
 284         if (vif->type == NL80211_IFTYPE_STATION &&
 285             ap_sta_id != IWL_MVM_INVALID_STA) {
 286                 struct iwl_mvm_sta *mvm_sta;
 287
 288                 mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
 289                 if (mvm_sta) {
 290                         pos += scnprintf(buf+pos, bufsz-pos,
 291                                          "ap_sta_id %d - reduced Tx power %d\n",
 292                                          ap_sta_id,
 293                                          mvm_sta->bt_reduced_txpower);
 294                 }
 295         }
 296
 297         rcu_read_lock();
 298         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 299         if (chanctx_conf)
 300                 pos += scnprintf(buf+pos, bufsz-pos,
 301                                  "idle rx chains %d, active rx chains: %d\n",
 302                                  chanctx_conf->rx_chains_static,
 303                                  chanctx_conf->rx_chains_dynamic);
 304         rcu_read_unlock();
 305
 306         mutex_unlock(&mvm->mutex);
 307
 308         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 309 }
 310
 311 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
 312                                 enum iwl_dbgfs_bf_mask param, int value)
 313 {
 314         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 315         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 316
 317         dbgfs_bf->mask |= param;
 318
 319         switch (param) {
 320         case MVM_DEBUGFS_BF_ENERGY_DELTA:
 321                 dbgfs_bf->bf_energy_delta = value;
 322                 break;
 323         case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
 324                 dbgfs_bf->bf_roaming_energy_delta = value;
 325                 break;
 326         case MVM_DEBUGFS_BF_ROAMING_STATE:
 327                 dbgfs_bf->bf_roaming_state = value;
 328                 break;
 329         case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
 330                 dbgfs_bf->bf_temp_threshold = value;
 331                 break;
 332         case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
 333                 dbgfs_bf->bf_temp_fast_filter = value;
 334                 break;
 335         case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
 336                 dbgfs_bf->bf_temp_slow_filter = value;
 337                 break;
 338         case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
 339                 dbgfs_bf->bf_enable_beacon_filter = value;
 340                 break;
 341         case MVM_DEBUGFS_BF_DEBUG_FLAG:
 342                 dbgfs_bf->bf_debug_flag = value;
 343                 break;
 344         case MVM_DEBUGFS_BF_ESCAPE_TIMER:
 345                 dbgfs_bf->bf_escape_timer = value;
 346                 break;
 347         case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
 348                 dbgfs_bf->ba_enable_beacon_abort = value;
 349                 break;
 350         case MVM_DEBUGFS_BA_ESCAPE_TIMER:
 351                 dbgfs_bf->ba_escape_timer = value;
 352                 break;
 353         }
 354 }
 355
 356 static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
 357                                          size_t count, loff_t *ppos)
 358 {
 359         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 360         struct iwl_mvm *mvm = mvmvif->mvm;
 361         enum iwl_dbgfs_bf_mask param;
 362         int value, ret = 0;
 363
 364         if (!strncmp("bf_energy_delta=", buf, 16)) {
 365                 if (sscanf(buf+16, "%d", &value) != 1)
 366                         return -EINVAL;
 367                 if (value < IWL_BF_ENERGY_DELTA_MIN ||
 368                     value > IWL_BF_ENERGY_DELTA_MAX)
 369                         return -EINVAL;
 370                 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
 371         } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
 372                 if (sscanf(buf+24, "%d", &value) != 1)
 373                         return -EINVAL;
 374                 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
 375                     value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
 376                         return -EINVAL;
 377                 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
 378         } else if (!strncmp("bf_roaming_state=", buf, 17)) {
 379                 if (sscanf(buf+17, "%d", &value) != 1)
 380                         return -EINVAL;
 381                 if (value < IWL_BF_ROAMING_STATE_MIN ||
 382                     value > IWL_BF_ROAMING_STATE_MAX)
 383                         return -EINVAL;
 384                 param = MVM_DEBUGFS_BF_ROAMING_STATE;
 385         } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
 386                 if (sscanf(buf+18, "%d", &value) != 1)
 387                         return -EINVAL;
 388                 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
 389                     value > IWL_BF_TEMP_THRESHOLD_MAX)
 390                         return -EINVAL;
 391                 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
 392         } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
 393                 if (sscanf(buf+20, "%d", &value) != 1)
 394                         return -EINVAL;
 395                 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
 396                     value > IWL_BF_TEMP_FAST_FILTER_MAX)
 397                         return -EINVAL;
 398                 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
 399         } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
 400                 if (sscanf(buf+20, "%d", &value) != 1)
 401                         return -EINVAL;
 402                 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
 403                     value > IWL_BF_TEMP_SLOW_FILTER_MAX)
 404                         return -EINVAL;
 405                 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
 406         } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
 407                 if (sscanf(buf+24, "%d", &value) != 1)
 408                         return -EINVAL;
 409                 if (value < 0 || value > 1)
 410                         return -EINVAL;
 411                 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
 412         } else if (!strncmp("bf_debug_flag=", buf, 14)) {
 413                 if (sscanf(buf+14, "%d", &value) != 1)
 414                         return -EINVAL;
 415                 if (value < 0 || value > 1)
 416                         return -EINVAL;
 417                 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
 418         } else if (!strncmp("bf_escape_timer=", buf, 16)) {
 419                 if (sscanf(buf+16, "%d", &value) != 1)
 420                         return -EINVAL;
 421                 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
 422                     value > IWL_BF_ESCAPE_TIMER_MAX)
 423                         return -EINVAL;
 424                 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
 425         } else if (!strncmp("ba_escape_timer=", buf, 16)) {
 426                 if (sscanf(buf+16, "%d", &value) != 1)
 427                         return -EINVAL;
 428                 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
 429                     value > IWL_BA_ESCAPE_TIMER_MAX)
 430                         return -EINVAL;
 431                 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
 432         } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
 433                 if (sscanf(buf+23, "%d", &value) != 1)
 434                         return -EINVAL;
 435                 if (value < 0 || value > 1)
 436                         return -EINVAL;
 437                 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
 438         } else {
 439                 return -EINVAL;
 440         }
 441
 442         mutex_lock(&mvm->mutex);
 443         iwl_dbgfs_update_bf(vif, param, value);
 444         if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
 445                 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
 446         else
 447                 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
 448         mutex_unlock(&mvm->mutex);
 449
 450         return ret ?: count;
 451 }
 452
 453 static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
 454                                         char __user *user_buf,
 455                                         size_t count, loff_t *ppos)
 456 {
 457         struct ieee80211_vif *vif = file->private_data;
 458         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 459         char buf[256];
 460         int pos = 0;
 461         const size_t bufsz = sizeof(buf);
 462         struct iwl_beacon_filter_cmd cmd = {
 463                 IWL_BF_CMD_CONFIG_DEFAULTS,
 464                 .bf_enable_beacon_filter =
 465                         cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
 466                 .ba_enable_beacon_abort =
 467                         cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
 468         };
 469
 470         iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 471         if (mvmvif->bf_data.bf_enabled)
 472                 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
 473         else
 474                 cmd.bf_enable_beacon_filter = 0;
 475
 476         pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
 477                          le32_to_cpu(cmd.bf_energy_delta));
 478         pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
 479                          le32_to_cpu(cmd.bf_roaming_energy_delta));
 480         pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
 481                          le32_to_cpu(cmd.bf_roaming_state));
 482         pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
 483                          le32_to_cpu(cmd.bf_temp_threshold));
 484         pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
 485                          le32_to_cpu(cmd.bf_temp_fast_filter));
 486         pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
 487                          le32_to_cpu(cmd.bf_temp_slow_filter));
 488         pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
 489                          le32_to_cpu(cmd.bf_enable_beacon_filter));
 490         pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
 491                          le32_to_cpu(cmd.bf_debug_flag));
 492         pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
 493                          le32_to_cpu(cmd.bf_escape_timer));
 494         pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
 495                          le32_to_cpu(cmd.ba_escape_timer));
 496         pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
 497                          le32_to_cpu(cmd.ba_enable_beacon_abort));
 498
 499         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 500 }
 501
 502 static inline char *iwl_dbgfs_is_match(char *name, char *buf)
 503 {
 504         int len = strlen(name);
 505
 506         return !strncmp(name, buf, len) ? buf + len : NULL;
 507 }
 508
 509 static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file,
 510                                                  char __user *user_buf,
 511                                                  size_t count, loff_t *ppos)
 512 {
 513         struct ieee80211_vif *vif = file->private_data;
 514         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 515         struct iwl_mvm *mvm = mvmvif->mvm;
 516         u32 curr_gp2;
 517         u64 curr_os;
 518         s64 diff;
 519         char buf[64];
 520         const size_t bufsz = sizeof(buf);
 521         int pos = 0;
 522
 523         iwl_mvm_get_sync_time(mvm, &curr_gp2, &curr_os);
 524         do_div(curr_os, NSEC_PER_USEC);
 525         diff = curr_os - curr_gp2;
 526         pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff);
 527
 528         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 529 }
 530
 531 static ssize_t iwl_dbgfs_tof_enable_write(struct ieee80211_vif *vif,
 532                                           char *buf,
 533                                           size_t count, loff_t *ppos)
 534 {
 535         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 536         struct iwl_mvm *mvm = mvmvif->mvm;
 537         u32 value;
 538         int ret = -EINVAL;
 539         char *data;
 540
 541         mutex_lock(&mvm->mutex);
 542
 543         data = iwl_dbgfs_is_match("tof_disabled=", buf);
 544         if (data) {
 545                 ret = kstrtou32(data, 10, &value);
 546                 if (ret == 0)
 547                         mvm->tof_data.tof_cfg.tof_disabled = value;
 548                 goto out;
 549         }
 550
 551         data = iwl_dbgfs_is_match("one_sided_disabled=", buf);
 552         if (data) {
 553                 ret = kstrtou32(data, 10, &value);
 554                 if (ret == 0)
 555                         mvm->tof_data.tof_cfg.one_sided_disabled = value;
 556                 goto out;
 557         }
 558
 559         data = iwl_dbgfs_is_match("is_debug_mode=", buf);
 560         if (data) {
 561                 ret = kstrtou32(data, 10, &value);
 562                 if (ret == 0)
 563                         mvm->tof_data.tof_cfg.is_debug_mode = value;
 564                 goto out;
 565         }
 566
 567         data = iwl_dbgfs_is_match("is_buf=", buf);
 568         if (data) {
 569                 ret = kstrtou32(data, 10, &value);
 570                 if (ret == 0)
 571                         mvm->tof_data.tof_cfg.is_buf_required = value;
 572                 goto out;
 573         }
 574
 575         data = iwl_dbgfs_is_match("send_tof_cfg=", buf);
 576         if (data) {
 577                 ret = kstrtou32(data, 10, &value);
 578                 if (ret == 0 && value) {
 579                         ret = iwl_mvm_tof_config_cmd(mvm);
 580                         goto out;
 581                 }
 582         }
 583
 584 out:
 585         mutex_unlock(&mvm->mutex);
 586
 587         return ret ?: count;
 588 }
 589
 590 static ssize_t iwl_dbgfs_tof_enable_read(struct file *file,
 591                                          char __user *user_buf,
 592                                          size_t count, loff_t *ppos)
 593 {
 594         struct ieee80211_vif *vif = file->private_data;
 595         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 596         struct iwl_mvm *mvm = mvmvif->mvm;
 597         char buf[256];
 598         int pos = 0;
 599         const size_t bufsz = sizeof(buf);
 600         struct iwl_tof_config_cmd *cmd;
 601
 602         cmd = &mvm->tof_data.tof_cfg;
 603
 604         mutex_lock(&mvm->mutex);
 605
 606         pos += scnprintf(buf + pos, bufsz - pos, "tof_disabled = %d\n",
 607                          cmd->tof_disabled);
 608         pos += scnprintf(buf + pos, bufsz - pos, "one_sided_disabled = %d\n",
 609                          cmd->one_sided_disabled);
 610         pos += scnprintf(buf + pos, bufsz - pos, "is_debug_mode = %d\n",
 611                          cmd->is_debug_mode);
 612         pos += scnprintf(buf + pos, bufsz - pos, "is_buf_required = %d\n",
 613                          cmd->is_buf_required);
 614
 615         mutex_unlock(&mvm->mutex);
 616
 617         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 618 }
 619
 620 static ssize_t iwl_dbgfs_tof_responder_params_write(struct ieee80211_vif *vif,
 621                                                     char *buf,
 622                                                     size_t count, loff_t *ppos)
 623 {
 624         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 625         struct iwl_mvm *mvm = mvmvif->mvm;
 626         u32 value;
 627         int ret = 0;
 628         char *data;
 629
 630         mutex_lock(&mvm->mutex);
 631
 632         data = iwl_dbgfs_is_match("burst_period=", buf);
 633         if (data) {
 634                 ret = kstrtou32(data, 10, &value);
 635                 if (!ret)
 636                         mvm->tof_data.responder_cfg.burst_period =
 637                                                         cpu_to_le16(value);
 638                 goto out;
 639         }
 640
 641         data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
 642         if (data) {
 643                 ret = kstrtou32(data, 10, &value);
 644                 if (ret == 0)
 645                         mvm->tof_data.responder_cfg.min_delta_ftm = value;
 646                 goto out;
 647         }
 648
 649         data = iwl_dbgfs_is_match("burst_duration=", buf);
 650         if (data) {
 651                 ret = kstrtou32(data, 10, &value);
 652                 if (ret == 0)
 653                         mvm->tof_data.responder_cfg.burst_duration = value;
 654                 goto out;
 655         }
 656
 657         data = iwl_dbgfs_is_match("num_of_burst_exp=", buf);
 658         if (data) {
 659                 ret = kstrtou32(data, 10, &value);
 660                 if (ret == 0)
 661                         mvm->tof_data.responder_cfg.num_of_burst_exp = value;
 662                 goto out;
 663         }
 664
 665         data = iwl_dbgfs_is_match("abort_responder=", buf);
 666         if (data) {
 667                 ret = kstrtou32(data, 10, &value);
 668                 if (ret == 0)
 669                         mvm->tof_data.responder_cfg.abort_responder = value;
 670                 goto out;
 671         }
 672
 673         data = iwl_dbgfs_is_match("get_ch_est=", buf);
 674         if (data) {
 675                 ret = kstrtou32(data, 10, &value);
 676                 if (ret == 0)
 677                         mvm->tof_data.responder_cfg.get_ch_est = value;
 678                 goto out;
 679         }
 680
 681         data = iwl_dbgfs_is_match("recv_sta_req_params=", buf);
 682         if (data) {
 683                 ret = kstrtou32(data, 10, &value);
 684                 if (ret == 0)
 685                         mvm->tof_data.responder_cfg.recv_sta_req_params = value;
 686                 goto out;
 687         }
 688
 689         data = iwl_dbgfs_is_match("channel_num=", buf);
 690         if (data) {
 691                 ret = kstrtou32(data, 10, &value);
 692                 if (ret == 0)
 693                         mvm->tof_data.responder_cfg.channel_num = value;
 694                 goto out;
 695         }
 696
 697         data = iwl_dbgfs_is_match("bandwidth=", buf);
 698         if (data) {
 699                 ret = kstrtou32(data, 10, &value);
 700                 if (ret == 0)
 701                         mvm->tof_data.responder_cfg.bandwidth = value;
 702                 goto out;
 703         }
 704
 705         data = iwl_dbgfs_is_match("rate=", buf);
 706         if (data) {
 707                 ret = kstrtou32(data, 10, &value);
 708                 if (ret == 0)
 709                         mvm->tof_data.responder_cfg.rate = value;
 710                 goto out;
 711         }
 712
 713         data = iwl_dbgfs_is_match("bssid=", buf);
 714         if (data) {
 715                 u8 *mac = mvm->tof_data.responder_cfg.bssid;
 716
 717                 if (!mac_pton(data, mac)) {
 718                         ret = -EINVAL;
 719                         goto out;
 720                 }
 721         }
 722
 723         data = iwl_dbgfs_is_match("tsf_timer_offset_msecs=", buf);
 724         if (data) {
 725                 ret = kstrtou32(data, 10, &value);
 726                 if (ret == 0)
 727                         mvm->tof_data.responder_cfg.tsf_timer_offset_msecs =
 728                                                         cpu_to_le16(value);
 729                 goto out;
 730         }
 731
 732         data = iwl_dbgfs_is_match("toa_offset=", buf);
 733         if (data) {
 734                 ret = kstrtou32(data, 10, &value);
 735                 if (ret == 0)
 736                         mvm->tof_data.responder_cfg.toa_offset =
 737                                                         cpu_to_le16(value);
 738                 goto out;
 739         }
 740
 741         data = iwl_dbgfs_is_match("center_freq=", buf);
 742         if (data) {
 743                 struct iwl_tof_responder_config_cmd *cmd =
 744                         &mvm->tof_data.responder_cfg;
 745
 746                 ret = kstrtou32(data, 10, &value);
 747                 if (ret == 0 && value) {
 748                         enum nl80211_band band = (cmd->channel_num <= 14) ?
 749                                                    NL80211_BAND_2GHZ :
 750                                                    NL80211_BAND_5GHZ;
 751                         struct ieee80211_channel chn = {
 752                                 .band = band,
 753                                 .center_freq = ieee80211_channel_to_frequency(
 754                                         cmd->channel_num, band),
 755                                 };
 756                         struct cfg80211_chan_def chandef = {
 757                                 .chan =  &chn,
 758                                 .center_freq1 =
 759                                         ieee80211_channel_to_frequency(value,
 760                                                                        band),
 761                         };
 762
 763                         cmd->ctrl_ch_position = iwl_mvm_get_ctrl_pos(&chandef);
 764                 }
 765                 goto out;
 766         }
 767
 768         data = iwl_dbgfs_is_match("ftm_per_burst=", buf);
 769         if (data) {
 770                 ret = kstrtou32(data, 10, &value);
 771                 if (ret == 0)
 772                         mvm->tof_data.responder_cfg.ftm_per_burst = value;
 773                 goto out;
 774         }
 775
 776         data = iwl_dbgfs_is_match("ftm_resp_ts_avail=", buf);
 777         if (data) {
 778                 ret = kstrtou32(data, 10, &value);
 779                 if (ret == 0)
 780                         mvm->tof_data.responder_cfg.ftm_resp_ts_avail = value;
 781                 goto out;
 782         }
 783
 784         data = iwl_dbgfs_is_match("asap_mode=", buf);
 785         if (data) {
 786                 ret = kstrtou32(data, 10, &value);
 787                 if (ret == 0)
 788                         mvm->tof_data.responder_cfg.asap_mode = value;
 789                 goto out;
 790         }
 791
 792         data = iwl_dbgfs_is_match("send_responder_cfg=", buf);
 793         if (data) {
 794                 ret = kstrtou32(data, 10, &value);
 795                 if (ret == 0 && value) {
 796                         ret = iwl_mvm_tof_responder_cmd(mvm, vif);
 797                         goto out;
 798                 }
 799         }
 800
 801 out:
 802         mutex_unlock(&mvm->mutex);
 803
 804         return ret ?: count;
 805 }
 806
 807 static ssize_t iwl_dbgfs_tof_responder_params_read(struct file *file,
 808                                                    char __user *user_buf,
 809                                                    size_t count, loff_t *ppos)
 810 {
 811         struct ieee80211_vif *vif = file->private_data;
 812         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 813         struct iwl_mvm *mvm = mvmvif->mvm;
 814         char buf[256];
 815         int pos = 0;
 816         const size_t bufsz = sizeof(buf);
 817         struct iwl_tof_responder_config_cmd *cmd;
 818
 819         cmd = &mvm->tof_data.responder_cfg;
 820
 821         mutex_lock(&mvm->mutex);
 822
 823         pos += scnprintf(buf + pos, bufsz - pos, "burst_period = %d\n",
 824                          le16_to_cpu(cmd->burst_period));
 825         pos += scnprintf(buf + pos, bufsz - pos, "burst_duration = %d\n",
 826                          cmd->burst_duration);
 827         pos += scnprintf(buf + pos, bufsz - pos, "bandwidth = %d\n",
 828                          cmd->bandwidth);
 829         pos += scnprintf(buf + pos, bufsz - pos, "channel_num = %d\n",
 830                          cmd->channel_num);
 831         pos += scnprintf(buf + pos, bufsz - pos, "ctrl_ch_position = 0x%x\n",
 832                          cmd->ctrl_ch_position);
 833         pos += scnprintf(buf + pos, bufsz - pos, "bssid = %pM\n",
 834                          cmd->bssid);
 835         pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %d\n",
 836                          cmd->min_delta_ftm);
 837         pos += scnprintf(buf + pos, bufsz - pos, "num_of_burst_exp = %d\n",
 838                          cmd->num_of_burst_exp);
 839         pos += scnprintf(buf + pos, bufsz - pos, "rate = %d\n", cmd->rate);
 840         pos += scnprintf(buf + pos, bufsz - pos, "abort_responder = %d\n",
 841                          cmd->abort_responder);
 842         pos += scnprintf(buf + pos, bufsz - pos, "get_ch_est = %d\n",
 843                          cmd->get_ch_est);
 844         pos += scnprintf(buf + pos, bufsz - pos, "recv_sta_req_params = %d\n",
 845                          cmd->recv_sta_req_params);
 846         pos += scnprintf(buf + pos, bufsz - pos, "ftm_per_burst = %d\n",
 847                          cmd->ftm_per_burst);
 848         pos += scnprintf(buf + pos, bufsz - pos, "ftm_resp_ts_avail = %d\n",
 849                          cmd->ftm_resp_ts_avail);
 850         pos += scnprintf(buf + pos, bufsz - pos, "asap_mode = %d\n",
 851                          cmd->asap_mode);
 852         pos += scnprintf(buf + pos, bufsz - pos,
 853                          "tsf_timer_offset_msecs = %d\n",
 854                          le16_to_cpu(cmd->tsf_timer_offset_msecs));
 855         pos += scnprintf(buf + pos, bufsz - pos, "toa_offset = %d\n",
 856                          le16_to_cpu(cmd->toa_offset));
 857
 858         mutex_unlock(&mvm->mutex);
 859
 860         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 861 }
 862
 863 static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif *vif,
 864                                                  char *buf, size_t count,
 865                                                  loff_t *ppos)
 866 {
 867         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 868         struct iwl_mvm *mvm = mvmvif->mvm;
 869         u32 value;
 870         int ret = 0;
 871         char *data;
 872
 873         mutex_lock(&mvm->mutex);
 874
 875         data = iwl_dbgfs_is_match("request_id=", buf);
 876         if (data) {
 877                 ret = kstrtou32(data, 10, &value);
 878                 if (ret == 0)
 879                         mvm->tof_data.range_req.request_id = value;
 880                 goto out;
 881         }
 882
 883         data = iwl_dbgfs_is_match("initiator=", buf);
 884         if (data) {
 885                 ret = kstrtou32(data, 10, &value);
 886                 if (ret == 0)
 887                         mvm->tof_data.range_req.initiator = value;
 888                 goto out;
 889         }
 890
 891         data = iwl_dbgfs_is_match("one_sided_los_disable=", buf);
 892         if (data) {
 893                 ret = kstrtou32(data, 10, &value);
 894                 if (ret == 0)
 895                         mvm->tof_data.range_req.one_sided_los_disable = value;
 896                 goto out;
 897         }
 898
 899         data = iwl_dbgfs_is_match("req_timeout=", buf);
 900         if (data) {
 901                 ret = kstrtou32(data, 10, &value);
 902                 if (ret == 0)
 903                         mvm->tof_data.range_req.req_timeout = value;
 904                 goto out;
 905         }
 906
 907         data = iwl_dbgfs_is_match("report_policy=", buf);
 908         if (data) {
 909                 ret = kstrtou32(data, 10, &value);
 910                 if (ret == 0)
 911                         mvm->tof_data.range_req.report_policy = value;
 912                 goto out;
 913         }
 914
 915         data = iwl_dbgfs_is_match("macaddr_random=", buf);
 916         if (data) {
 917                 ret = kstrtou32(data, 10, &value);
 918                 if (ret == 0)
 919                         mvm->tof_data.range_req.macaddr_random = value;
 920                 goto out;
 921         }
 922
 923         data = iwl_dbgfs_is_match("num_of_ap=", buf);
 924         if (data) {
 925                 ret = kstrtou32(data, 10, &value);
 926                 if (ret == 0)
 927                         mvm->tof_data.range_req.num_of_ap = value;
 928                 goto out;
 929         }
 930
 931         data = iwl_dbgfs_is_match("macaddr_template=", buf);
 932         if (data) {
 933                 u8 mac[ETH_ALEN];
 934
 935                 if (!mac_pton(data, mac)) {
 936                         ret = -EINVAL;
 937                         goto out;
 938                 }
 939                 memcpy(mvm->tof_data.range_req.macaddr_template, mac, ETH_ALEN);
 940                 goto out;
 941         }
 942
 943         data = iwl_dbgfs_is_match("macaddr_mask=", buf);
 944         if (data) {
 945                 u8 mac[ETH_ALEN];
 946
 947                 if (!mac_pton(data, mac)) {
 948                         ret = -EINVAL;
 949                         goto out;
 950                 }
 951                 memcpy(mvm->tof_data.range_req.macaddr_mask, mac, ETH_ALEN);
 952                 goto out;
 953         }
 954
 955         data = iwl_dbgfs_is_match("ap=", buf);
 956         if (data) {
 957                 struct iwl_tof_range_req_ap_entry ap = {};
 958                 int size = sizeof(struct iwl_tof_range_req_ap_entry);
 959                 u16 burst_period;
 960                 u8 *mac = ap.bssid;
 961                 unsigned int i;
 962
 963                 if (sscanf(data, "%u %hhd %hhd %hhd"
 964                            "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx"
 965                            "%hhd %hhd %hd"
 966                            "%hhd %hhd %d"
 967                            "%hhx %hhd %hhd %hhd",
 968                            &i, &ap.channel_num, &ap.bandwidth,
 969                            &ap.ctrl_ch_position,
 970                            mac, mac + 1, mac + 2, mac + 3, mac + 4, mac + 5,
 971                            &ap.measure_type, &ap.num_of_bursts,
 972                            &burst_period,
 973                            &ap.samples_per_burst, &ap.retries_per_sample,
 974                            &ap.tsf_delta, &ap.location_req, &ap.asap_mode,
 975                            &ap.enable_dyn_ack, &ap.rssi) != 20) {
 976                         ret = -EINVAL;
 977                         goto out;
 978                 }
 979                 if (i >= IWL_MVM_TOF_MAX_APS) {
 980                         IWL_ERR(mvm, "Invalid AP index %d\n", i);
 981                         ret = -EINVAL;
 982                         goto out;
 983                 }
 984
 985                 ap.burst_period = cpu_to_le16(burst_period);
 986
 987                 memcpy(&mvm->tof_data.range_req.ap[i], &ap, size);
 988                 goto out;
 989         }
 990
 991         data = iwl_dbgfs_is_match("send_range_request=", buf);
 992         if (data) {
 993                 ret = kstrtou32(data, 10, &value);
 994                 if (ret == 0 && value)
 995                         ret = iwl_mvm_tof_range_request_cmd(mvm, vif);
 996                 goto out;
 997         }
 998
 999         ret = -EINVAL;
1000 out:
1001         mutex_unlock(&mvm->mutex);
1002         return ret ?: count;
1003 }
1004
1005 static ssize_t iwl_dbgfs_tof_range_request_read(struct file *file,
1006                                                 char __user *user_buf,
1007                                                 size_t count, loff_t *ppos)
1008 {
1009         struct ieee80211_vif *vif = file->private_data;
1010         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1011         struct iwl_mvm *mvm = mvmvif->mvm;
1012         char buf[512];
1013         int pos = 0;
1014         const size_t bufsz = sizeof(buf);
1015         struct iwl_tof_range_req_cmd *cmd;
1016         int i;
1017
1018         cmd = &mvm->tof_data.range_req;
1019
1020         mutex_lock(&mvm->mutex);
1021
1022         pos += scnprintf(buf + pos, bufsz - pos, "request_id= %d\n",
1023                          cmd->request_id);
1024         pos += scnprintf(buf + pos, bufsz - pos, "initiator= %d\n",
1025                          cmd->initiator);
1026         pos += scnprintf(buf + pos, bufsz - pos, "one_sided_los_disable = %d\n",
1027                          cmd->one_sided_los_disable);
1028         pos += scnprintf(buf + pos, bufsz - pos, "req_timeout= %d\n",
1029                          cmd->req_timeout);
1030         pos += scnprintf(buf + pos, bufsz - pos, "report_policy= %d\n",
1031                          cmd->report_policy);
1032         pos += scnprintf(buf + pos, bufsz - pos, "macaddr_random= %d\n",
1033                          cmd->macaddr_random);
1034         pos += scnprintf(buf + pos, bufsz - pos, "macaddr_template= %pM\n",
1035                          cmd->macaddr_template);
1036         pos += scnprintf(buf + pos, bufsz - pos, "macaddr_mask= %pM\n",
1037                          cmd->macaddr_mask);
1038         pos += scnprintf(buf + pos, bufsz - pos, "num_of_ap= %d\n",
1039                          cmd->num_of_ap);
1040         for (i = 0; i < cmd->num_of_ap; i++) {
1041                 struct iwl_tof_range_req_ap_entry *ap = &cmd->ap[i];
1042
1043                 pos += scnprintf(buf + pos, bufsz - pos,
1044                                 "ap %.2d: channel_num=%hhd bw=%hhd"
1045                                 " control=%hhd bssid=%pM type=%hhd"
1046                                 " num_of_bursts=%hhd burst_period=%hd ftm=%hhd"
1047                                 " retries=%hhd tsf_delta=%d"
1048                                 " tsf_delta_direction=%hhd location_req=0x%hhx "
1049                                 " asap=%hhd enable=%hhd rssi=%hhd\n",
1050                                 i, ap->channel_num, ap->bandwidth,
1051                                 ap->ctrl_ch_position, ap->bssid,
1052                                 ap->measure_type, ap->num_of_bursts,
1053                                 ap->burst_period, ap->samples_per_burst,
1054                                 ap->retries_per_sample, ap->tsf_delta,
1055                                 ap->tsf_delta_direction,
1056                                 ap->location_req, ap->asap_mode,
1057                                 ap->enable_dyn_ack, ap->rssi);
1058         }
1059
1060         mutex_unlock(&mvm->mutex);
1061
1062         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1063 }
1064
1065 static ssize_t iwl_dbgfs_tof_range_req_ext_write(struct ieee80211_vif *vif,
1066                                                  char *buf,
1067                                                  size_t count, loff_t *ppos)
1068 {
1069         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1070         struct iwl_mvm *mvm = mvmvif->mvm;
1071         u32 value;
1072         int ret = 0;
1073         char *data;
1074
1075         mutex_lock(&mvm->mutex);
1076
1077         data = iwl_dbgfs_is_match("tsf_timer_offset_msec=", buf);
1078         if (data) {
1079                 ret = kstrtou32(data, 10, &value);
1080                 if (ret == 0)
1081                         mvm->tof_data.range_req_ext.tsf_timer_offset_msec =
1082                                                         cpu_to_le16(value);
1083                 goto out;
1084         }
1085
1086         data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
1087         if (data) {
1088                 ret = kstrtou32(data, 10, &value);
1089                 if (ret == 0)
1090                         mvm->tof_data.range_req_ext.min_delta_ftm = value;
1091                 goto out;
1092         }
1093
1094         data = iwl_dbgfs_is_match("ftm_format_and_bw20M=", buf);
1095         if (data) {
1096                 ret = kstrtou32(data, 10, &value);
1097                 if (ret == 0)
1098                         mvm->tof_data.range_req_ext.ftm_format_and_bw20M =
1099                                                                         value;
1100                 goto out;
1101         }
1102
1103         data = iwl_dbgfs_is_match("ftm_format_and_bw40M=", buf);
1104         if (data) {
1105                 ret = kstrtou32(data, 10, &value);
1106                 if (ret == 0)
1107                         mvm->tof_data.range_req_ext.ftm_format_and_bw40M =
1108                                                                         value;
1109                 goto out;
1110         }
1111
1112         data = iwl_dbgfs_is_match("ftm_format_and_bw80M=", buf);
1113         if (data) {
1114                 ret = kstrtou32(data, 10, &value);
1115                 if (ret == 0)
1116                         mvm->tof_data.range_req_ext.ftm_format_and_bw80M =
1117                                                                         value;
1118                 goto out;
1119         }
1120
1121         data = iwl_dbgfs_is_match("send_range_req_ext=", buf);
1122         if (data) {
1123                 ret = kstrtou32(data, 10, &value);
1124                 if (ret == 0 && value)
1125                         ret = iwl_mvm_tof_range_request_ext_cmd(mvm, vif);
1126                 goto out;
1127         }
1128
1129         ret = -EINVAL;
1130 out:
1131         mutex_unlock(&mvm->mutex);
1132         return ret ?: count;
1133 }
1134
1135 static ssize_t iwl_dbgfs_tof_range_req_ext_read(struct file *file,
1136                                                 char __user *user_buf,
1137                                                 size_t count, loff_t *ppos)
1138 {
1139         struct ieee80211_vif *vif = file->private_data;
1140         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1141         struct iwl_mvm *mvm = mvmvif->mvm;
1142         char buf[256];
1143         int pos = 0;
1144         const size_t bufsz = sizeof(buf);
1145         struct iwl_tof_range_req_ext_cmd *cmd;
1146
1147         cmd = &mvm->tof_data.range_req_ext;
1148
1149         mutex_lock(&mvm->mutex);
1150
1151         pos += scnprintf(buf + pos, bufsz - pos,
1152                          "tsf_timer_offset_msec = %hd\n",
1153                          cmd->tsf_timer_offset_msec);
1154         pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %hhd\n",
1155                          cmd->min_delta_ftm);
1156         pos += scnprintf(buf + pos, bufsz - pos,
1157                          "ftm_format_and_bw20M = %hhd\n",
1158                          cmd->ftm_format_and_bw20M);
1159         pos += scnprintf(buf + pos, bufsz - pos,
1160                          "ftm_format_and_bw40M = %hhd\n",
1161                          cmd->ftm_format_and_bw40M);
1162         pos += scnprintf(buf + pos, bufsz - pos,
1163                          "ftm_format_and_bw80M = %hhd\n",
1164                          cmd->ftm_format_and_bw80M);
1165
1166         mutex_unlock(&mvm->mutex);
1167         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1168 }
1169
1170 static ssize_t iwl_dbgfs_tof_range_abort_write(struct ieee80211_vif *vif,
1171                                                char *buf,
1172                                                size_t count, loff_t *ppos)
1173 {
1174         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1175         struct iwl_mvm *mvm = mvmvif->mvm;
1176         u32 value;
1177         int abort_id, ret = 0;
1178         char *data;
1179
1180         mutex_lock(&mvm->mutex);
1181
1182         data = iwl_dbgfs_is_match("abort_id=", buf);
1183         if (data) {
1184                 ret = kstrtou32(data, 10, &value);
1185                 if (ret == 0)
1186                         mvm->tof_data.last_abort_id = value;
1187                 goto out;
1188         }
1189
1190         data = iwl_dbgfs_is_match("send_range_abort=", buf);
1191         if (data) {
1192                 ret = kstrtou32(data, 10, &value);
1193                 if (ret == 0 && value) {
1194                         abort_id = mvm->tof_data.last_abort_id;
1195                         ret = iwl_mvm_tof_range_abort_cmd(mvm, abort_id);
1196                         goto out;
1197                 }
1198         }
1199
1200 out:
1201         mutex_unlock(&mvm->mutex);
1202         return ret ?: count;
1203 }
1204
1205 static ssize_t iwl_dbgfs_tof_range_abort_read(struct file *file,
1206                                               char __user *user_buf,
1207                                               size_t count, loff_t *ppos)
1208 {
1209         struct ieee80211_vif *vif = file->private_data;
1210         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1211         struct iwl_mvm *mvm = mvmvif->mvm;
1212         char buf[32];
1213         int pos = 0;
1214         const size_t bufsz = sizeof(buf);
1215         int last_abort_id;
1216
1217         mutex_lock(&mvm->mutex);
1218         last_abort_id = mvm->tof_data.last_abort_id;
1219         mutex_unlock(&mvm->mutex);
1220
1221         pos += scnprintf(buf + pos, bufsz - pos, "last_abort_id = %d\n",
1222                          last_abort_id);
1223         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1224 }
1225
1226 static ssize_t iwl_dbgfs_tof_range_response_read(struct file *file,
1227                                                  char __user *user_buf,
1228                                                  size_t count, loff_t *ppos)
1229 {
1230         struct ieee80211_vif *vif = file->private_data;
1231         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1232         struct iwl_mvm *mvm = mvmvif->mvm;
1233         char *buf;
1234         int pos = 0;
1235         const size_t bufsz = sizeof(struct iwl_tof_range_rsp_ntfy) + 256;
1236         struct iwl_tof_range_rsp_ntfy *cmd;
1237         int i, ret;
1238
1239         buf = kzalloc(bufsz, GFP_KERNEL);
1240         if (!buf)
1241                 return -ENOMEM;
1242
1243         mutex_lock(&mvm->mutex);
1244         cmd = &mvm->tof_data.range_resp;
1245
1246         pos += scnprintf(buf + pos, bufsz - pos, "request_id = %d\n",
1247                          cmd->request_id);
1248         pos += scnprintf(buf + pos, bufsz - pos, "status = %d\n",
1249                          cmd->request_status);
1250         pos += scnprintf(buf + pos, bufsz - pos, "last_in_batch = %d\n",
1251                          cmd->last_in_batch);
1252         pos += scnprintf(buf + pos, bufsz - pos, "num_of_aps = %d\n",
1253                          cmd->num_of_aps);
1254         for (i = 0; i < cmd->num_of_aps; i++) {
1255                 struct iwl_tof_range_rsp_ap_entry_ntfy *ap = &cmd->ap[i];
1256
1257                 pos += scnprintf(buf + pos, bufsz - pos,
1258                                 "ap %.2d: bssid=%pM status=%hhd bw=%hhd"
1259                                 " rtt=%d rtt_var=%d rtt_spread=%d"
1260                                 " rssi=%hhd  rssi_spread=%hhd"
1261                                 " range=%d range_var=%d"
1262                                 " time_stamp=%d\n",
1263                                 i, ap->bssid, ap->measure_status,
1264                                 ap->measure_bw,
1265                                 ap->rtt, ap->rtt_variance, ap->rtt_spread,
1266                                 ap->rssi, ap->rssi_spread, ap->range,
1267                                 ap->range_variance, ap->timestamp);
1268         }
1269         mutex_unlock(&mvm->mutex);
1270
1271         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1272         kfree(buf);
1273         return ret;
1274 }
1275
1276 static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
1277                                            size_t count, loff_t *ppos)
1278 {
1279         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1280         struct iwl_mvm *mvm = mvmvif->mvm;
1281         u8 value;
1282         int ret;
1283
1284         ret = kstrtou8(buf, 0, &value);
1285         if (ret)
1286                 return ret;
1287         if (value > 1)
1288                 return -EINVAL;
1289
1290         mutex_lock(&mvm->mutex);
1291         iwl_mvm_update_low_latency(mvm, vif, value, LOW_LATENCY_DEBUGFS);
1292         mutex_unlock(&mvm->mutex);
1293
1294         return count;
1295 }
1296
1297 static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
1298                                           char __user *user_buf,
1299                                           size_t count, loff_t *ppos)
1300 {
1301         struct ieee80211_vif *vif = file->private_data;
1302         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1303         char buf[30] = {};
1304         int len;
1305
1306         len = scnprintf(buf, sizeof(buf) - 1,
1307                         "traffic=%d\ndbgfs=%d\nvcmd=%d\n",
1308                         !!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC),
1309                         !!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),
1310                         !!(mvmvif->low_latency & LOW_LATENCY_VCMD));
1311         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1312 }
1313
1314 static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,
1315                                                 char __user *user_buf,
1316                                                 size_t count, loff_t *ppos)
1317 {
1318         struct ieee80211_vif *vif = file->private_data;
1319         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1320         char buf[20];
1321         int len;
1322
1323         len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_bssid);
1324         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1325 }
1326
1327 static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,
1328                                                  char *buf, size_t count,
1329                                                  loff_t *ppos)
1330 {
1331         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1332         struct iwl_mvm *mvm = mvmvif->mvm;
1333         bool ret;
1334
1335         mutex_lock(&mvm->mutex);
1336         ret = mac_pton(buf, mvmvif->uapsd_misbehaving_bssid);
1337         mutex_unlock(&mvm->mutex);
1338
1339         return ret ? count : -EINVAL;
1340 }
1341
1342 static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
1343                                           size_t count, loff_t *ppos)
1344 {
1345         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1346         struct iwl_mvm *mvm = mvmvif->mvm;
1347         struct ieee80211_chanctx_conf *chanctx_conf;
1348         struct iwl_mvm_phy_ctxt *phy_ctxt;
1349         u16 value;
1350         int ret;
1351
1352         ret = kstrtou16(buf, 0, &value);
1353         if (ret)
1354                 return ret;
1355
1356         mutex_lock(&mvm->mutex);
1357         rcu_read_lock();
1358
1359         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1360         /* make sure the channel context is assigned */
1361         if (!chanctx_conf) {
1362                 rcu_read_unlock();
1363                 mutex_unlock(&mvm->mutex);
1364                 return -EINVAL;
1365         }
1366
1367         phy_ctxt = &mvm->phy_ctxts[*(u16 *)chanctx_conf->drv_priv];
1368         rcu_read_unlock();
1369
1370         mvm->dbgfs_rx_phyinfo = value;
1371
1372         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chanctx_conf->min_def,
1373                                        chanctx_conf->rx_chains_static,
1374                                        chanctx_conf->rx_chains_dynamic);
1375         mutex_unlock(&mvm->mutex);
1376
1377         return ret ?: count;
1378 }
1379
1380 static ssize_t iwl_dbgfs_rx_phyinfo_read(struct file *file,
1381                                          char __user *user_buf,
1382                                          size_t count, loff_t *ppos)
1383 {
1384         struct ieee80211_vif *vif = file->private_data;
1385         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1386         char buf[8];
1387         int len;
1388
1389         len = scnprintf(buf, sizeof(buf), "0x%04x\n",
1390                         mvmvif->mvm->dbgfs_rx_phyinfo);
1391
1392         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1393 }
1394
1395 static void iwl_dbgfs_quota_check(void *data, u8 *mac,
1396                                   struct ieee80211_vif *vif)
1397 {
1398         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1399         int *ret = data;
1400
1401         if (mvmvif->dbgfs_quota_min)
1402                 *ret = -EINVAL;
1403 }
1404
1405 static ssize_t iwl_dbgfs_quota_min_write(struct ieee80211_vif *vif, char *buf,
1406                                          size_t count, loff_t *ppos)
1407 {
1408         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1409         struct iwl_mvm *mvm = mvmvif->mvm;
1410         u16 value;
1411         int ret;
1412
1413         ret = kstrtou16(buf, 0, &value);
1414         if (ret)
1415                 return ret;
1416
1417         if (value > 95)
1418                 return -EINVAL;
1419
1420         mutex_lock(&mvm->mutex);
1421
1422         mvmvif->dbgfs_quota_min = 0;
1423         ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1424                                      iwl_dbgfs_quota_check, &ret);
1425         if (ret == 0) {
1426                 mvmvif->dbgfs_quota_min = value;
1427                 iwl_mvm_update_quotas(mvm, false, NULL);
1428         }
1429         mutex_unlock(&mvm->mutex);
1430
1431         return ret ?: count;
1432 }
1433
1434 static ssize_t iwl_dbgfs_quota_min_read(struct file *file,
1435                                         char __user *user_buf,
1436                                         size_t count, loff_t *ppos)
1437 {
1438         struct ieee80211_vif *vif = file->private_data;
1439         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1440         char buf[10];
1441         int len;
1442
1443         len = scnprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);
1444
1445         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1446 }
1447
1448 static const char * const chanwidths[] = {
1449         [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1450         [NL80211_CHAN_WIDTH_20] = "ht20",
1451         [NL80211_CHAN_WIDTH_40] = "ht40",
1452         [NL80211_CHAN_WIDTH_80] = "vht80",
1453         [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1454         [NL80211_CHAN_WIDTH_160] = "vht160",
1455 };
1456
1457 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1458         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
1459 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1460         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
1461 #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do {               \
1462                 if (!debugfs_create_file(#name, mode, parent, vif,      \
1463                                          &iwl_dbgfs_##name##_ops))      \
1464                         goto err;                                       \
1465         } while (0)
1466
1467 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
1468 MVM_DEBUGFS_READ_FILE_OPS(tx_pwr_lmt);
1469 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
1470 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
1471 MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
1472 MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
1473 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);
1474 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_enable, 32);
1475 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_request, 512);
1476 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_req_ext, 32);
1477 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_abort, 32);
1478 MVM_DEBUGFS_READ_FILE_OPS(tof_range_response);
1479 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_responder_params, 32);
1480 MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);
1481 MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);
1482
1483
1484 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1485 {
1486         struct dentry *dbgfs_dir = vif->debugfs_dir;
1487         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1488         char buf[100];
1489
1490         /*
1491          * Check if debugfs directory already exist before creating it.
1492          * This may happen when, for example, resetting hw or suspend-resume
1493          */
1494         if (!dbgfs_dir || mvmvif->dbgfs_dir)
1495                 return;
1496
1497         mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
1498
1499         if (!mvmvif->dbgfs_dir) {
1500                 IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",
1501                         dbgfs_dir);
1502                 return;
1503         }
1504
1505         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
1506             ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
1507              (vif->type == NL80211_IFTYPE_STATION && vif->p2p)))
1508                 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, 0600);
1509
1510         MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, 0400);
1511         MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, 0400);
1512         MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, 0600);
1513         MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir, 0600);
1514         MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600);
1515         MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600);
1516         MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400);
1517
1518         if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1519             mvmvif == mvm->bf_allowed_vif)
1520                 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, 0600);
1521
1522         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TOF_SUPPORT) &&
1523             !vif->p2p && (vif->type != NL80211_IFTYPE_P2P_DEVICE)) {
1524                 if (IWL_MVM_TOF_IS_RESPONDER && vif->type == NL80211_IFTYPE_AP)
1525                         MVM_DEBUGFS_ADD_FILE_VIF(tof_responder_params,
1526                                                  mvmvif->dbgfs_dir, 0600);
1527
1528                 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_request, mvmvif->dbgfs_dir,
1529                                          0600);
1530                 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_req_ext, mvmvif->dbgfs_dir,
1531                                          0600);
1532                 MVM_DEBUGFS_ADD_FILE_VIF(tof_enable, mvmvif->dbgfs_dir,
1533                                          0600);
1534                 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_abort, mvmvif->dbgfs_dir,
1535                                          0600);
1536                 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_response, mvmvif->dbgfs_dir,
1537                                          0400);
1538         }
1539
1540         /*
1541          * Create symlink for convenience pointing to interface specific
1542          * debugfs entries for the driver. For example, under
1543          * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1544          * find
1545          * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1546          */
1547         snprintf(buf, 100, "../../../%pd3/%pd",
1548                  dbgfs_dir,
1549                  mvmvif->dbgfs_dir);
1550
1551         mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1552                                                      mvm->debugfs_dir, buf);
1553         if (!mvmvif->dbgfs_slink)
1554                 IWL_ERR(mvm, "Can't create debugfs symbolic link under %pd\n",
1555                         dbgfs_dir);
1556         return;
1557 err:
1558         IWL_ERR(mvm, "Can't create debugfs entity\n");
1559 }
1560
1561 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1562 {
1563         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1564
1565         debugfs_remove(mvmvif->dbgfs_slink);
1566         mvmvif->dbgfs_slink = NULL;
1567
1568         debugfs_remove_recursive(mvmvif->dbgfs_dir);
1569         mvmvif->dbgfs_dir = NULL;
1570 }