drivers/net/wireless/iwlwifi/mvm/debugfs.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  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23  * USA
  24  *
  25  * The full GNU General Public License is included in this distribution
  26  * in the file called COPYING.
  27  *
  28  * Contact Information:
  29  *  Intel Linux Wireless <ilw@linux.intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  *
  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  *  * Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
  48  *  * Neither the name Intel Corporation nor the names of its
  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65 #include <linux/vmalloc.h>
  66
  67 #include "mvm.h"
  68 #include "sta.h"
  69 #include "iwl-io.h"
  70 #include "debugfs.h"
  71 #include "iwl-fw-error-dump.h"
  72
  73 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
  74                                         size_t count, loff_t *ppos)
  75 {
  76         int ret;
  77         u32 scd_q_msk;
  78
  79         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
  80                 return -EIO;
  81
  82         if (sscanf(buf, "%x", &scd_q_msk) != 1)
  83                 return -EINVAL;
  84
  85         IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
  86
  87         mutex_lock(&mvm->mutex);
  88         ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
  89         mutex_unlock(&mvm->mutex);
  90
  91         return ret;
  92 }
  93
  94 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
  95                                          size_t count, loff_t *ppos)
  96 {
  97         struct iwl_mvm_sta *mvmsta;
  98         int sta_id, drain, ret;
  99
 100         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 101                 return -EIO;
 102
 103         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 104                 return -EINVAL;
 105         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 106                 return -EINVAL;
 107         if (drain < 0 || drain > 1)
 108                 return -EINVAL;
 109
 110         mutex_lock(&mvm->mutex);
 111
 112         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 113
 114         if (!mvmsta)
 115                 ret = -ENOENT;
 116         else
 117                 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
 118
 119         mutex_unlock(&mvm->mutex);
 120
 121         return ret;
 122 }
 123
 124 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 125                                    size_t count, loff_t *ppos)
 126 {
 127         struct iwl_mvm *mvm = file->private_data;
 128         const struct fw_img *img;
 129         unsigned int ofs, len;
 130         size_t ret;
 131         u8 *ptr;
 132
 133         if (!mvm->ucode_loaded)
 134                 return -EINVAL;
 135
 136         /* default is to dump the entire data segment */
 137         img = &mvm->fw->img[mvm->cur_ucode];
 138         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 139         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 140
 141         if (mvm->dbgfs_sram_len) {
 142                 ofs = mvm->dbgfs_sram_offset;
 143                 len = mvm->dbgfs_sram_len;
 144         }
 145
 146         ptr = kzalloc(len, GFP_KERNEL);
 147         if (!ptr)
 148                 return -ENOMEM;
 149
 150         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 151
 152         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 153
 154         kfree(ptr);
 155
 156         return ret;
 157 }
 158
 159 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 160                                     size_t count, loff_t *ppos)
 161 {
 162         const struct fw_img *img;
 163         u32 offset, len;
 164         u32 img_offset, img_len;
 165
 166         if (!mvm->ucode_loaded)
 167                 return -EINVAL;
 168
 169         img = &mvm->fw->img[mvm->cur_ucode];
 170         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 171         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 172
 173         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 174                 if ((offset & 0x3) || (len & 0x3))
 175                         return -EINVAL;
 176
 177                 if (offset + len > img_offset + img_len)
 178                         return -EINVAL;
 179
 180                 mvm->dbgfs_sram_offset = offset;
 181                 mvm->dbgfs_sram_len = len;
 182         } else {
 183                 mvm->dbgfs_sram_offset = 0;
 184                 mvm->dbgfs_sram_len = 0;
 185         }
 186
 187         return count;
 188 }
 189
 190 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
 191                                                   char __user *user_buf,
 192                                                   size_t count, loff_t *ppos)
 193 {
 194         struct iwl_mvm *mvm = file->private_data;
 195         char buf[16];
 196         int pos;
 197
 198         if (!mvm->temperature_test)
 199                 pos = scnprintf(buf , sizeof(buf), "disabled\n");
 200         else
 201                 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
 202
 203         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 204 }
 205
 206 /*
 207  * Set NIC Temperature
 208  * Cause the driver to ignore the actual NIC temperature reported by the FW
 209  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
 210  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
 211  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
 212  */
 213 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
 214                                                    char *buf, size_t count,
 215                                                    loff_t *ppos)
 216 {
 217         int temperature;
 218
 219         if (!mvm->ucode_loaded && !mvm->temperature_test)
 220                 return -EIO;
 221
 222         if (kstrtoint(buf, 10, &temperature))
 223                 return -EINVAL;
 224         /* not a legal temperature */
 225         if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
 226              temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
 227             temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
 228                 return -EINVAL;
 229
 230         mutex_lock(&mvm->mutex);
 231         if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
 232                 if (!mvm->temperature_test)
 233                         goto out;
 234
 235                 mvm->temperature_test = false;
 236                 /* Since we can't read the temp while awake, just set
 237                  * it to zero until we get the next RX stats from the
 238                  * firmware.
 239                  */
 240                 mvm->temperature = 0;
 241         } else {
 242                 mvm->temperature_test = true;
 243                 mvm->temperature = temperature;
 244         }
 245         IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
 246                        mvm->temperature_test ? "En" : "Dis" ,
 247                        mvm->temperature);
 248         /* handle the temperature change */
 249         iwl_mvm_tt_handler(mvm);
 250
 251 out:
 252         mutex_unlock(&mvm->mutex);
 253
 254         return count;
 255 }
 256
 257 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
 258                                        char __user *user_buf,
 259                                        size_t count, loff_t *ppos)
 260 {
 261         struct iwl_mvm *mvm = file->private_data;
 262         char buf[16];
 263         int pos, temp;
 264
 265         if (!mvm->ucode_loaded)
 266                 return -EIO;
 267
 268         mutex_lock(&mvm->mutex);
 269         temp = iwl_mvm_get_temp(mvm);
 270         mutex_unlock(&mvm->mutex);
 271
 272         if (temp < 0)
 273                 return temp;
 274
 275         pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
 276
 277         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 278 }
 279
 280 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 281                                        size_t count, loff_t *ppos)
 282 {
 283         struct iwl_mvm *mvm = file->private_data;
 284         struct ieee80211_sta *sta;
 285         char buf[400];
 286         int i, pos = 0, bufsz = sizeof(buf);
 287
 288         mutex_lock(&mvm->mutex);
 289
 290         for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
 291                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 292                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 293                                                 lockdep_is_held(&mvm->mutex));
 294                 if (!sta)
 295                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 296                 else if (IS_ERR(sta))
 297                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 298                                          PTR_ERR(sta));
 299                 else
 300                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 301                                          sta->addr);
 302         }
 303
 304         mutex_unlock(&mvm->mutex);
 305
 306         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 307 }
 308
 309 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 310                                                 char __user *user_buf,
 311                                                 size_t count, loff_t *ppos)
 312 {
 313         struct iwl_mvm *mvm = file->private_data;
 314         char buf[64];
 315         int bufsz = sizeof(buf);
 316         int pos = 0;
 317
 318         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 319                          mvm->disable_power_off);
 320         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 321                          mvm->disable_power_off_d3);
 322
 323         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 324 }
 325
 326 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 327                                                  size_t count, loff_t *ppos)
 328 {
 329         int ret, val;
 330
 331         if (!mvm->ucode_loaded)
 332                 return -EIO;
 333
 334         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 335                 if (sscanf(buf + 21, "%d", &val) != 1)
 336                         return -EINVAL;
 337                 mvm->disable_power_off = val;
 338         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 339                 if (sscanf(buf + 21, "%d", &val) != 1)
 340                         return -EINVAL;
 341                 mvm->disable_power_off_d3 = val;
 342         } else {
 343                 return -EINVAL;
 344         }
 345
 346         mutex_lock(&mvm->mutex);
 347         ret = iwl_mvm_power_update_device(mvm);
 348         mutex_unlock(&mvm->mutex);
 349
 350         return ret ?: count;
 351 }
 352
 353 #define BT_MBOX_MSG(_notif, _num, _field)                                    \
 354         ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 355         >> BT_MBOX##_num##_##_field##_POS)
 356
 357
 358 #define BT_MBOX_PRINT(_num, _field, _end)                                   \
 359                         pos += scnprintf(buf + pos, bufsz - pos,            \
 360                                          "\t%s: %d%s",                      \
 361                                          #_field,                           \
 362                                          BT_MBOX_MSG(notif, _num, _field),  \
 363                                          true ? "\n" : ", ");
 364
 365 static
 366 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
 367                            int pos, int bufsz)
 368 {
 369         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 370
 371         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 372         BT_MBOX_PRINT(0, LE_PROF1, false);
 373         BT_MBOX_PRINT(0, LE_PROF2, false);
 374         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 375         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 376         BT_MBOX_PRINT(0, INBAND_S, false);
 377         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 378         BT_MBOX_PRINT(0, LE_SCAN, false);
 379         BT_MBOX_PRINT(0, LE_ADV, false);
 380         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 381         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 382
 383         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 384
 385         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 386         BT_MBOX_PRINT(1, IP_SR, false);
 387         BT_MBOX_PRINT(1, LE_MSTR, false);
 388         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 389         BT_MBOX_PRINT(1, MSG_TYPE, false);
 390         BT_MBOX_PRINT(1, SSN, true);
 391
 392         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 393
 394         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 395         BT_MBOX_PRINT(2, PAG, false);
 396         BT_MBOX_PRINT(2, INQUIRY, false);
 397         BT_MBOX_PRINT(2, CONN, false);
 398         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 399         BT_MBOX_PRINT(2, DISC, false);
 400         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 401         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 402         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 403         BT_MBOX_PRINT(2, SCO_DURATION, true);
 404
 405         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 406
 407         BT_MBOX_PRINT(3, SCO_STATE, false);
 408         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 409         BT_MBOX_PRINT(3, A2DP_STATE, false);
 410         BT_MBOX_PRINT(3, ACL_STATE, false);
 411         BT_MBOX_PRINT(3, MSTR_STATE, false);
 412         BT_MBOX_PRINT(3, OBX_STATE, false);
 413         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 414         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 415         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 416         BT_MBOX_PRINT(3, INBAND_P, false);
 417         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 418         BT_MBOX_PRINT(3, SSN_2, false);
 419         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 420
 421         return pos;
 422 }
 423
 424 static
 425 int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
 426                                char *buf, int pos, int bufsz)
 427 {
 428         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 429
 430         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 431         BT_MBOX_PRINT(0, LE_PROF1, false);
 432         BT_MBOX_PRINT(0, LE_PROF2, false);
 433         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 434         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 435         BT_MBOX_PRINT(0, INBAND_S, false);
 436         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 437         BT_MBOX_PRINT(0, LE_SCAN, false);
 438         BT_MBOX_PRINT(0, LE_ADV, false);
 439         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 440         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 441
 442         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 443
 444         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 445         BT_MBOX_PRINT(1, IP_SR, false);
 446         BT_MBOX_PRINT(1, LE_MSTR, false);
 447         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 448         BT_MBOX_PRINT(1, MSG_TYPE, false);
 449         BT_MBOX_PRINT(1, SSN, true);
 450
 451         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 452
 453         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 454         BT_MBOX_PRINT(2, PAG, false);
 455         BT_MBOX_PRINT(2, INQUIRY, false);
 456         BT_MBOX_PRINT(2, CONN, false);
 457         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 458         BT_MBOX_PRINT(2, DISC, false);
 459         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 460         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 461         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 462         BT_MBOX_PRINT(2, SCO_DURATION, true);
 463
 464         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 465
 466         BT_MBOX_PRINT(3, SCO_STATE, false);
 467         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 468         BT_MBOX_PRINT(3, A2DP_STATE, false);
 469         BT_MBOX_PRINT(3, ACL_STATE, false);
 470         BT_MBOX_PRINT(3, MSTR_STATE, false);
 471         BT_MBOX_PRINT(3, OBX_STATE, false);
 472         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 473         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 474         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 475         BT_MBOX_PRINT(3, INBAND_P, false);
 476         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 477         BT_MBOX_PRINT(3, SSN_2, false);
 478         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 479
 480         return pos;
 481 }
 482
 483 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 484                                        size_t count, loff_t *ppos)
 485 {
 486         struct iwl_mvm *mvm = file->private_data;
 487         char *buf;
 488         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 489
 490         buf = kmalloc(bufsz, GFP_KERNEL);
 491         if (!buf)
 492                 return -ENOMEM;
 493
 494         mutex_lock(&mvm->mutex);
 495
 496         if (!fw_has_api(&mvm->fw->ucode_capa,
 497                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 498                 struct iwl_bt_coex_profile_notif_old *notif =
 499                         &mvm->last_bt_notif_old;
 500
 501                 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
 502
 503                 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 504                                  notif->bt_ci_compliance);
 505                 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 506                                  le32_to_cpu(notif->primary_ch_lut));
 507                 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 508                                  le32_to_cpu(notif->secondary_ch_lut));
 509                 pos += scnprintf(buf+pos,
 510                                  bufsz-pos, "bt_activity_grading = %d\n",
 511                                  le32_to_cpu(notif->bt_activity_grading));
 512                 pos += scnprintf(buf+pos, bufsz-pos,
 513                                  "antenna isolation = %d CORUN LUT index = %d\n",
 514                                  mvm->last_ant_isol, mvm->last_corun_lut);
 515         } else {
 516                 struct iwl_bt_coex_profile_notif *notif =
 517                         &mvm->last_bt_notif;
 518
 519                 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
 520
 521                 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 522                                  notif->bt_ci_compliance);
 523                 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 524                                  le32_to_cpu(notif->primary_ch_lut));
 525                 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 526                                  le32_to_cpu(notif->secondary_ch_lut));
 527                 pos += scnprintf(buf+pos,
 528                                  bufsz-pos, "bt_activity_grading = %d\n",
 529                                  le32_to_cpu(notif->bt_activity_grading));
 530                 pos += scnprintf(buf+pos, bufsz-pos,
 531                                  "antenna isolation = %d CORUN LUT index = %d\n",
 532                                  mvm->last_ant_isol, mvm->last_corun_lut);
 533         }
 534
 535         mutex_unlock(&mvm->mutex);
 536
 537         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 538         kfree(buf);
 539
 540         return ret;
 541 }
 542 #undef BT_MBOX_PRINT
 543
 544 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 545                                      size_t count, loff_t *ppos)
 546 {
 547         struct iwl_mvm *mvm = file->private_data;
 548         char buf[256];
 549         int bufsz = sizeof(buf);
 550         int pos = 0;
 551
 552         mutex_lock(&mvm->mutex);
 553
 554         if (!fw_has_api(&mvm->fw->ucode_capa,
 555                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 556                 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
 557
 558                 pos += scnprintf(buf+pos, bufsz-pos,
 559                                  "Channel inhibition CMD\n");
 560                 pos += scnprintf(buf+pos, bufsz-pos,
 561                                "\tPrimary Channel Bitmap 0x%016llx\n",
 562                                le64_to_cpu(cmd->bt_primary_ci));
 563                 pos += scnprintf(buf+pos, bufsz-pos,
 564                                "\tSecondary Channel Bitmap 0x%016llx\n",
 565                                le64_to_cpu(cmd->bt_secondary_ci));
 566
 567                 pos += scnprintf(buf+pos, bufsz-pos,
 568                                  "BT Configuration CMD - 0=default, 1=never, 2=always\n");
 569                 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill msk idx %d\n",
 570                                  mvm->bt_ack_kill_msk[0]);
 571                 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill msk idx %d\n",
 572                                  mvm->bt_cts_kill_msk[0]);
 573
 574         } else {
 575                 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 576
 577                 pos += scnprintf(buf+pos, bufsz-pos,
 578                                  "Channel inhibition CMD\n");
 579                 pos += scnprintf(buf+pos, bufsz-pos,
 580                                "\tPrimary Channel Bitmap 0x%016llx\n",
 581                                le64_to_cpu(cmd->bt_primary_ci));
 582                 pos += scnprintf(buf+pos, bufsz-pos,
 583                                "\tSecondary Channel Bitmap 0x%016llx\n",
 584                                le64_to_cpu(cmd->bt_secondary_ci));
 585         }
 586
 587         mutex_unlock(&mvm->mutex);
 588
 589         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 590 }
 591
 592 static ssize_t
 593 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 594                            size_t count, loff_t *ppos)
 595 {
 596         u32 bt_tx_prio;
 597
 598         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 599                 return -EINVAL;
 600         if (bt_tx_prio > 4)
 601                 return -EINVAL;
 602
 603         mvm->bt_tx_prio = bt_tx_prio;
 604
 605         return count;
 606 }
 607
 608 static ssize_t
 609 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
 610                              size_t count, loff_t *ppos)
 611 {
 612         static const char * const modes_str[BT_FORCE_ANT_MAX] = {
 613                 [BT_FORCE_ANT_DIS] = "dis",
 614                 [BT_FORCE_ANT_AUTO] = "auto",
 615                 [BT_FORCE_ANT_BT] = "bt",
 616                 [BT_FORCE_ANT_WIFI] = "wifi",
 617         };
 618         int ret, bt_force_ant_mode;
 619
 620         for (bt_force_ant_mode = 0;
 621              bt_force_ant_mode < ARRAY_SIZE(modes_str);
 622              bt_force_ant_mode++) {
 623                 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
 624                         break;
 625         }
 626
 627         if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
 628                 return -EINVAL;
 629
 630         ret = 0;
 631         mutex_lock(&mvm->mutex);
 632         if (mvm->bt_force_ant_mode == bt_force_ant_mode)
 633                 goto out;
 634
 635         mvm->bt_force_ant_mode = bt_force_ant_mode;
 636         IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
 637                        modes_str[mvm->bt_force_ant_mode]);
 638         ret = iwl_send_bt_init_conf(mvm);
 639
 640 out:
 641         mutex_unlock(&mvm->mutex);
 642         return ret ?: count;
 643 }
 644
 645 #define PRINT_STATS_LE32(_struct, _memb)                                \
 646                          pos += scnprintf(buf + pos, bufsz - pos,       \
 647                                           fmt_table, #_memb,            \
 648                                           le32_to_cpu(_struct->_memb))
 649
 650 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 651                                           char __user *user_buf, size_t count,
 652                                           loff_t *ppos)
 653 {
 654         struct iwl_mvm *mvm = file->private_data;
 655         static const char *fmt_table = "\t%-30s %10u\n";
 656         static const char *fmt_header = "%-32s\n";
 657         int pos = 0;
 658         char *buf;
 659         int ret;
 660         /* 43 is the size of each data line, 33 is the size of each header */
 661         size_t bufsz =
 662                 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
 663                 (4 * 33) + 1;
 664
 665         struct mvm_statistics_rx_phy *ofdm;
 666         struct mvm_statistics_rx_phy *cck;
 667         struct mvm_statistics_rx_non_phy *general;
 668         struct mvm_statistics_rx_ht_phy *ht;
 669
 670         buf = kzalloc(bufsz, GFP_KERNEL);
 671         if (!buf)
 672                 return -ENOMEM;
 673
 674         mutex_lock(&mvm->mutex);
 675
 676         ofdm = &mvm->rx_stats.ofdm;
 677         cck = &mvm->rx_stats.cck;
 678         general = &mvm->rx_stats.general;
 679         ht = &mvm->rx_stats.ofdm_ht;
 680
 681         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 682                          "Statistics_Rx - OFDM");
 683         PRINT_STATS_LE32(ofdm, ina_cnt);
 684         PRINT_STATS_LE32(ofdm, fina_cnt);
 685         PRINT_STATS_LE32(ofdm, plcp_err);
 686         PRINT_STATS_LE32(ofdm, crc32_err);
 687         PRINT_STATS_LE32(ofdm, overrun_err);
 688         PRINT_STATS_LE32(ofdm, early_overrun_err);
 689         PRINT_STATS_LE32(ofdm, crc32_good);
 690         PRINT_STATS_LE32(ofdm, false_alarm_cnt);
 691         PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
 692         PRINT_STATS_LE32(ofdm, sfd_timeout);
 693         PRINT_STATS_LE32(ofdm, fina_timeout);
 694         PRINT_STATS_LE32(ofdm, unresponded_rts);
 695         PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 696         PRINT_STATS_LE32(ofdm, sent_ack_cnt);
 697         PRINT_STATS_LE32(ofdm, sent_cts_cnt);
 698         PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 699         PRINT_STATS_LE32(ofdm, dsp_self_kill);
 700         PRINT_STATS_LE32(ofdm, mh_format_err);
 701         PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
 702         PRINT_STATS_LE32(ofdm, reserved);
 703
 704         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 705                          "Statistics_Rx - CCK");
 706         PRINT_STATS_LE32(cck, ina_cnt);
 707         PRINT_STATS_LE32(cck, fina_cnt);
 708         PRINT_STATS_LE32(cck, plcp_err);
 709         PRINT_STATS_LE32(cck, crc32_err);
 710         PRINT_STATS_LE32(cck, overrun_err);
 711         PRINT_STATS_LE32(cck, early_overrun_err);
 712         PRINT_STATS_LE32(cck, crc32_good);
 713         PRINT_STATS_LE32(cck, false_alarm_cnt);
 714         PRINT_STATS_LE32(cck, fina_sync_err_cnt);
 715         PRINT_STATS_LE32(cck, sfd_timeout);
 716         PRINT_STATS_LE32(cck, fina_timeout);
 717         PRINT_STATS_LE32(cck, unresponded_rts);
 718         PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 719         PRINT_STATS_LE32(cck, sent_ack_cnt);
 720         PRINT_STATS_LE32(cck, sent_cts_cnt);
 721         PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 722         PRINT_STATS_LE32(cck, dsp_self_kill);
 723         PRINT_STATS_LE32(cck, mh_format_err);
 724         PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
 725         PRINT_STATS_LE32(cck, reserved);
 726
 727         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 728                          "Statistics_Rx - GENERAL");
 729         PRINT_STATS_LE32(general, bogus_cts);
 730         PRINT_STATS_LE32(general, bogus_ack);
 731         PRINT_STATS_LE32(general, non_bssid_frames);
 732         PRINT_STATS_LE32(general, filtered_frames);
 733         PRINT_STATS_LE32(general, non_channel_beacons);
 734         PRINT_STATS_LE32(general, channel_beacons);
 735         PRINT_STATS_LE32(general, num_missed_bcon);
 736         PRINT_STATS_LE32(general, adc_rx_saturation_time);
 737         PRINT_STATS_LE32(general, ina_detection_search_time);
 738         PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 739         PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 740         PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 741         PRINT_STATS_LE32(general, interference_data_flag);
 742         PRINT_STATS_LE32(general, channel_load);
 743         PRINT_STATS_LE32(general, dsp_false_alarms);
 744         PRINT_STATS_LE32(general, beacon_rssi_a);
 745         PRINT_STATS_LE32(general, beacon_rssi_b);
 746         PRINT_STATS_LE32(general, beacon_rssi_c);
 747         PRINT_STATS_LE32(general, beacon_energy_a);
 748         PRINT_STATS_LE32(general, beacon_energy_b);
 749         PRINT_STATS_LE32(general, beacon_energy_c);
 750         PRINT_STATS_LE32(general, num_bt_kills);
 751         PRINT_STATS_LE32(general, mac_id);
 752         PRINT_STATS_LE32(general, directed_data_mpdu);
 753
 754         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 755                          "Statistics_Rx - HT");
 756         PRINT_STATS_LE32(ht, plcp_err);
 757         PRINT_STATS_LE32(ht, overrun_err);
 758         PRINT_STATS_LE32(ht, early_overrun_err);
 759         PRINT_STATS_LE32(ht, crc32_good);
 760         PRINT_STATS_LE32(ht, crc32_err);
 761         PRINT_STATS_LE32(ht, mh_format_err);
 762         PRINT_STATS_LE32(ht, agg_crc32_good);
 763         PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 764         PRINT_STATS_LE32(ht, agg_cnt);
 765         PRINT_STATS_LE32(ht, unsupport_mcs);
 766
 767         mutex_unlock(&mvm->mutex);
 768
 769         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 770         kfree(buf);
 771
 772         return ret;
 773 }
 774 #undef PRINT_STAT_LE32
 775
 776 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 777                                           char __user *user_buf, size_t count,
 778                                           loff_t *ppos,
 779                                           struct iwl_mvm_frame_stats *stats)
 780 {
 781         char *buff, *pos, *endpos;
 782         int idx, i;
 783         int ret;
 784         static const size_t bufsz = 1024;
 785
 786         buff = kmalloc(bufsz, GFP_KERNEL);
 787         if (!buff)
 788                 return -ENOMEM;
 789
 790         spin_lock_bh(&mvm->drv_stats_lock);
 791
 792         pos = buff;
 793         endpos = pos + bufsz;
 794
 795         pos += scnprintf(pos, endpos - pos,
 796                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 797                          stats->legacy_frames,
 798                          stats->ht_frames,
 799                          stats->vht_frames);
 800         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 801                          stats->bw_20_frames,
 802                          stats->bw_40_frames,
 803                          stats->bw_80_frames);
 804         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 805                          stats->ngi_frames,
 806                          stats->sgi_frames);
 807         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 808                          stats->siso_frames,
 809                          stats->mimo2_frames);
 810         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 811                          stats->fail_frames,
 812                          stats->success_frames);
 813         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 814                          stats->agg_frames);
 815         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 816                          stats->ampdu_count);
 817         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 818                          stats->ampdu_count > 0 ?
 819                          (stats->agg_frames / stats->ampdu_count) : 0);
 820
 821         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 822
 823         idx = stats->last_frame_idx - 1;
 824         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 825                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 826                 if (stats->last_rates[idx] == 0)
 827                         continue;
 828                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 829                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 830                 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
 831         }
 832         spin_unlock_bh(&mvm->drv_stats_lock);
 833
 834         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 835         kfree(buff);
 836
 837         return ret;
 838 }
 839
 840 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 841                                            char __user *user_buf, size_t count,
 842                                            loff_t *ppos)
 843 {
 844         struct iwl_mvm *mvm = file->private_data;
 845
 846         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 847                                           &mvm->drv_rx_stats);
 848 }
 849
 850 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 851                                           size_t count, loff_t *ppos)
 852 {
 853         int ret;
 854
 855         mutex_lock(&mvm->mutex);
 856
 857         /* allow one more restart that we're provoking here */
 858         if (mvm->restart_fw >= 0)
 859                 mvm->restart_fw++;
 860
 861         /* take the return value to make compiler happy - it will fail anyway */
 862         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
 863
 864         mutex_unlock(&mvm->mutex);
 865
 866         return count;
 867 }
 868
 869 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
 870                                       size_t count, loff_t *ppos)
 871 {
 872         int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
 873         if (ret)
 874                 return ret;
 875
 876         iwl_force_nmi(mvm->trans);
 877
 878         iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
 879
 880         return count;
 881 }
 882
 883 static ssize_t
 884 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
 885                                 char __user *user_buf,
 886                                 size_t count, loff_t *ppos)
 887 {
 888         struct iwl_mvm *mvm = file->private_data;
 889         int pos = 0;
 890         char buf[32];
 891         const size_t bufsz = sizeof(buf);
 892
 893         /* print which antennas were set for the scan command by the user */
 894         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
 895         if (mvm->scan_rx_ant & ANT_A)
 896                 pos += scnprintf(buf + pos, bufsz - pos, "A");
 897         if (mvm->scan_rx_ant & ANT_B)
 898                 pos += scnprintf(buf + pos, bufsz - pos, "B");
 899         if (mvm->scan_rx_ant & ANT_C)
 900                 pos += scnprintf(buf + pos, bufsz - pos, "C");
 901         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
 902
 903         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 904 }
 905
 906 static ssize_t
 907 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
 908                                  size_t count, loff_t *ppos)
 909 {
 910         u8 scan_rx_ant;
 911
 912         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
 913                 return -EINVAL;
 914         if (scan_rx_ant > ANT_ABC)
 915                 return -EINVAL;
 916         if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
 917                 return -EINVAL;
 918
 919         if (mvm->scan_rx_ant != scan_rx_ant) {
 920                 mvm->scan_rx_ant = scan_rx_ant;
 921                 if (fw_has_capa(&mvm->fw->ucode_capa,
 922                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
 923                         iwl_mvm_config_scan(mvm);
 924         }
 925
 926         return count;
 927 }
 928
 929 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
 930                                           char __user *user_buf,
 931                                           size_t count, loff_t *ppos)
 932 {
 933         struct iwl_mvm *mvm = file->private_data;
 934         int conf;
 935         char buf[8];
 936         const size_t bufsz = sizeof(buf);
 937         int pos = 0;
 938
 939         mutex_lock(&mvm->mutex);
 940         conf = mvm->fw_dbg_conf;
 941         mutex_unlock(&mvm->mutex);
 942
 943         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
 944
 945         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 946 }
 947
 948 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
 949                                            char *buf, size_t count,
 950                                            loff_t *ppos)
 951 {
 952         unsigned int conf_id;
 953         int ret;
 954
 955         ret = kstrtouint(buf, 0, &conf_id);
 956         if (ret)
 957                 return ret;
 958
 959         if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
 960                 return -EINVAL;
 961
 962         mutex_lock(&mvm->mutex);
 963         ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
 964         mutex_unlock(&mvm->mutex);
 965
 966         return ret ?: count;
 967 }
 968
 969 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
 970                                               char *buf, size_t count,
 971                                               loff_t *ppos)
 972 {
 973         int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
 974
 975         if (ret)
 976                 return ret;
 977
 978         iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, NULL, 0, NULL);
 979
 980         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
 981
 982         return count;
 983 }
 984
 985 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
 986 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 987 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
 988                                             char __user *user_buf,
 989                                             size_t count, loff_t *ppos)
 990 {
 991         struct iwl_mvm *mvm = file->private_data;
 992         struct iwl_bcast_filter_cmd cmd;
 993         const struct iwl_fw_bcast_filter *filter;
 994         char *buf;
 995         int bufsz = 1024;
 996         int i, j, pos = 0;
 997         ssize_t ret;
 998
 999         buf = kzalloc(bufsz, GFP_KERNEL);
1000         if (!buf)
1001                 return -ENOMEM;
1002
1003         mutex_lock(&mvm->mutex);
1004         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1005                 ADD_TEXT("None\n");
1006                 mutex_unlock(&mvm->mutex);
1007                 goto out;
1008         }
1009         mutex_unlock(&mvm->mutex);
1010
1011         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1012                 filter = &cmd.filters[i];
1013
1014                 ADD_TEXT("Filter [%d]:\n", i);
1015                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1016                 ADD_TEXT("\tFrame Type: %s\n",
1017                          filter->frame_type ? "IPv4" : "Generic");
1018
1019                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1020                         const struct iwl_fw_bcast_filter_attr *attr;
1021
1022                         attr = &filter->attrs[j];
1023                         if (!attr->mask)
1024                                 break;
1025
1026                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1027                                  j, attr->offset,
1028                                  attr->offset_type ? "IP End" :
1029                                                      "Payload Start",
1030                                  be32_to_cpu(attr->mask),
1031                                  be32_to_cpu(attr->val),
1032                                  le16_to_cpu(attr->reserved1));
1033                 }
1034         }
1035 out:
1036         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1037         kfree(buf);
1038         return ret;
1039 }
1040
1041 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1042                                              size_t count, loff_t *ppos)
1043 {
1044         int pos, next_pos;
1045         struct iwl_fw_bcast_filter filter = {};
1046         struct iwl_bcast_filter_cmd cmd;
1047         u32 filter_id, attr_id, mask, value;
1048         int err = 0;
1049
1050         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1051                    &filter.frame_type, &pos) != 3)
1052                 return -EINVAL;
1053
1054         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1055             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1056                 return -EINVAL;
1057
1058         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1059              attr_id++) {
1060                 struct iwl_fw_bcast_filter_attr *attr =
1061                                 &filter.attrs[attr_id];
1062
1063                 if (pos >= count)
1064                         break;
1065
1066                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1067                            &attr->offset, &attr->offset_type,
1068                            &mask, &value, &next_pos) != 4)
1069                         return -EINVAL;
1070
1071                 attr->mask = cpu_to_be32(mask);
1072                 attr->val = cpu_to_be32(value);
1073                 if (mask)
1074                         filter.num_attrs++;
1075
1076                 pos += next_pos;
1077         }
1078
1079         mutex_lock(&mvm->mutex);
1080         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1081                &filter, sizeof(filter));
1082
1083         /* send updated bcast filtering configuration */
1084         if (mvm->dbgfs_bcast_filtering.override &&
1085             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1086                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1087                                            sizeof(cmd), &cmd);
1088         mutex_unlock(&mvm->mutex);
1089
1090         return err ?: count;
1091 }
1092
1093 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1094                                                  char __user *user_buf,
1095                                                  size_t count, loff_t *ppos)
1096 {
1097         struct iwl_mvm *mvm = file->private_data;
1098         struct iwl_bcast_filter_cmd cmd;
1099         char *buf;
1100         int bufsz = 1024;
1101         int i, pos = 0;
1102         ssize_t ret;
1103
1104         buf = kzalloc(bufsz, GFP_KERNEL);
1105         if (!buf)
1106                 return -ENOMEM;
1107
1108         mutex_lock(&mvm->mutex);
1109         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1110                 ADD_TEXT("None\n");
1111                 mutex_unlock(&mvm->mutex);
1112                 goto out;
1113         }
1114         mutex_unlock(&mvm->mutex);
1115
1116         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1117                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1118
1119                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1120                          i, mac->default_discard, mac->attached_filters);
1121         }
1122 out:
1123         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1124         kfree(buf);
1125         return ret;
1126 }
1127
1128 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1129                                                   char *buf, size_t count,
1130                                                   loff_t *ppos)
1131 {
1132         struct iwl_bcast_filter_cmd cmd;
1133         struct iwl_fw_bcast_mac mac = {};
1134         u32 mac_id, attached_filters;
1135         int err = 0;
1136
1137         if (!mvm->bcast_filters)
1138                 return -ENOENT;
1139
1140         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1141                    &attached_filters) != 3)
1142                 return -EINVAL;
1143
1144         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1145             mac.default_discard > 1 ||
1146             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1147                 return -EINVAL;
1148
1149         mac.attached_filters = cpu_to_le16(attached_filters);
1150
1151         mutex_lock(&mvm->mutex);
1152         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1153                &mac, sizeof(mac));
1154
1155         /* send updated bcast filtering configuration */
1156         if (mvm->dbgfs_bcast_filtering.override &&
1157             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1158                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1159                                            sizeof(cmd), &cmd);
1160         mutex_unlock(&mvm->mutex);
1161
1162         return err ?: count;
1163 }
1164 #endif
1165
1166 #ifdef CONFIG_PM_SLEEP
1167 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1168                                        size_t count, loff_t *ppos)
1169 {
1170         int store;
1171
1172         if (sscanf(buf, "%d", &store) != 1)
1173                 return -EINVAL;
1174
1175         mvm->store_d3_resume_sram = store;
1176
1177         return count;
1178 }
1179
1180 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1181                                       size_t count, loff_t *ppos)
1182 {
1183         struct iwl_mvm *mvm = file->private_data;
1184         const struct fw_img *img;
1185         int ofs, len, pos = 0;
1186         size_t bufsz, ret;
1187         char *buf;
1188         u8 *ptr = mvm->d3_resume_sram;
1189
1190         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1191         len = img->sec[IWL_UCODE_SECTION_DATA].len;
1192
1193         bufsz = len * 4 + 256;
1194         buf = kzalloc(bufsz, GFP_KERNEL);
1195         if (!buf)
1196                 return -ENOMEM;
1197
1198         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1199                          mvm->store_d3_resume_sram ? "en" : "dis");
1200
1201         if (ptr) {
1202                 for (ofs = 0; ofs < len; ofs += 16) {
1203                         pos += scnprintf(buf + pos, bufsz - pos,
1204                                          "0x%.4x %16ph\n", ofs, ptr + ofs);
1205                 }
1206         } else {
1207                 pos += scnprintf(buf + pos, bufsz - pos,
1208                                  "(no data captured)\n");
1209         }
1210
1211         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1212
1213         kfree(buf);
1214
1215         return ret;
1216 }
1217 #endif
1218
1219 #define PRINT_MVM_REF(ref) do {                                         \
1220         if (mvm->refs[ref])                                             \
1221                 pos += scnprintf(buf + pos, bufsz - pos,                \
1222                                  "\t(0x%lx): %d %s\n",                  \
1223                                  BIT(ref), mvm->refs[ref], #ref);       \
1224 } while (0)
1225
1226 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1227                                         char __user *user_buf,
1228                                         size_t count, loff_t *ppos)
1229 {
1230         struct iwl_mvm *mvm = file->private_data;
1231         int i, pos = 0;
1232         char buf[256];
1233         const size_t bufsz = sizeof(buf);
1234         u32 refs = 0;
1235
1236         for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1237                 if (mvm->refs[i])
1238                         refs |= BIT(i);
1239
1240         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1241                          refs);
1242
1243         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1244         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1245         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1246         PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1247         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1248         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1249         PRINT_MVM_REF(IWL_MVM_REF_USER);
1250         PRINT_MVM_REF(IWL_MVM_REF_TX);
1251         PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1252         PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1253         PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1254         PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1255         PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1256         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1257         PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1258         PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1259         PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1260         PRINT_MVM_REF(IWL_MVM_REF_NMI);
1261         PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1262         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1263         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1264         PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1265
1266         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1267 }
1268
1269 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1270                                          size_t count, loff_t *ppos)
1271 {
1272         unsigned long value;
1273         int ret;
1274         bool taken;
1275
1276         ret = kstrtoul(buf, 10, &value);
1277         if (ret < 0)
1278                 return ret;
1279
1280         mutex_lock(&mvm->mutex);
1281
1282         taken = mvm->refs[IWL_MVM_REF_USER];
1283         if (value == 1 && !taken)
1284                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1285         else if (value == 0 && taken)
1286                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1287         else
1288                 ret = -EINVAL;
1289
1290         mutex_unlock(&mvm->mutex);
1291
1292         if (ret < 0)
1293                 return ret;
1294         return count;
1295 }
1296
1297 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1298         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1299 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1300         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1301 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1302                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1303                                          &iwl_dbgfs_##name##_ops))      \
1304                         goto err;                                       \
1305         } while (0)
1306 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1307         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1308
1309 static ssize_t
1310 iwl_dbgfs_prph_reg_read(struct file *file,
1311                         char __user *user_buf,
1312                         size_t count, loff_t *ppos)
1313 {
1314         struct iwl_mvm *mvm = file->private_data;
1315         int pos = 0;
1316         char buf[32];
1317         const size_t bufsz = sizeof(buf);
1318         int ret;
1319
1320         if (!mvm->dbgfs_prph_reg_addr)
1321                 return -EINVAL;
1322
1323         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1324         if (ret)
1325                 return ret;
1326
1327         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1328                 mvm->dbgfs_prph_reg_addr,
1329                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1330
1331         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1332
1333         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1334 }
1335
1336 static ssize_t
1337 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1338                          size_t count, loff_t *ppos)
1339 {
1340         u8 args;
1341         u32 value;
1342         int ret;
1343
1344         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1345         /* if we only want to set the reg address - nothing more to do */
1346         if (args == 1)
1347                 goto out;
1348
1349         /* otherwise, make sure we have both address and value */
1350         if (args != 2)
1351                 return -EINVAL;
1352
1353         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1354         if (ret)
1355                 return ret;
1356
1357         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1358
1359         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1360 out:
1361         return count;
1362 }
1363
1364 static ssize_t
1365 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1366                               size_t count, loff_t *ppos)
1367 {
1368         int ret;
1369
1370         mutex_lock(&mvm->mutex);
1371         ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1372         mutex_unlock(&mvm->mutex);
1373
1374         return ret ?: count;
1375 }
1376
1377 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1378
1379 /* Device wide debugfs entries */
1380 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1381 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1382 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1383 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1384 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1385 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1386 MVM_DEBUGFS_READ_FILE_OPS(stations);
1387 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1388 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1389 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1390 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1391 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1392 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1393 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1394 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1395 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1396 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1397 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1398 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1399 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
1400
1401 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1402 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1403 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1404 #endif
1405
1406 #ifdef CONFIG_PM_SLEEP
1407 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1408 #endif
1409
1410 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1411 {
1412         struct dentry *bcast_dir __maybe_unused;
1413         char buf[100];
1414
1415         spin_lock_init(&mvm->drv_stats_lock);
1416
1417         mvm->debugfs_dir = dbgfs_dir;
1418
1419         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1420         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1421         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1422         MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1423                              S_IWUSR | S_IRUSR);
1424         MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1425         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1426         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1427         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1428         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1429                              S_IRUSR | S_IWUSR);
1430         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1431         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1432         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1433         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1434         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1435         MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1436         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1437                              S_IWUSR | S_IRUSR);
1438         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1439         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1440         MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1441         MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1442         MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1443         if (!debugfs_create_bool("enable_scan_iteration_notif",
1444                                  S_IRUSR | S_IWUSR,
1445                                  mvm->debugfs_dir,
1446                                  &mvm->scan_iter_notif_enabled))
1447                 goto err;
1448
1449 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1450         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1451                 bcast_dir = debugfs_create_dir("bcast_filtering",
1452                                                mvm->debugfs_dir);
1453                 if (!bcast_dir)
1454                         goto err;
1455
1456                 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1457                                 bcast_dir,
1458                                 &mvm->dbgfs_bcast_filtering.override))
1459                         goto err;
1460
1461                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1462                                            bcast_dir, S_IWUSR | S_IRUSR);
1463                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1464                                            bcast_dir, S_IWUSR | S_IRUSR);
1465         }
1466 #endif
1467
1468 #ifdef CONFIG_PM_SLEEP
1469         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1470         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1471         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1472                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1473                 goto err;
1474         if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1475                                 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1476                 goto err;
1477 #endif
1478
1479         if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,
1480                                mvm->debugfs_dir,
1481                                &mvm->low_latency_agg_frame_limit))
1482                 goto err;
1483         if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1484                                mvm->debugfs_dir, &mvm->ps_disabled))
1485                 goto err;
1486         if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1487                                   mvm->debugfs_dir, &mvm->nvm_hw_blob))
1488                 goto err;
1489         if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1490                                   mvm->debugfs_dir, &mvm->nvm_sw_blob))
1491                 goto err;
1492         if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1493                                   mvm->debugfs_dir, &mvm->nvm_calib_blob))
1494                 goto err;
1495         if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1496                                   mvm->debugfs_dir, &mvm->nvm_prod_blob))
1497                 goto err;
1498         if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1499                                  mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1500                 goto err;
1501
1502         /*
1503          * Create a symlink with mac80211. It will be removed when mac80211
1504          * exists (before the opmode exists which removes the target.)
1505          */
1506         snprintf(buf, 100, "../../%s/%s",
1507                  dbgfs_dir->d_parent->d_parent->d_name.name,
1508                  dbgfs_dir->d_parent->d_name.name);
1509         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1510                 goto err;
1511
1512         return 0;
1513 err:
1514         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1515         return -ENOMEM;
1516 }