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 - 2014 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 - 2014 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, true) ? : 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 int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
 125 {
 126         struct iwl_mvm *mvm = inode->i_private;
 127         int ret;
 128
 129         if (!mvm)
 130                 return -EINVAL;
 131
 132         mutex_lock(&mvm->mutex);
 133         if (!mvm->fw_error_dump) {
 134                 ret = -ENODATA;
 135                 goto out;
 136         }
 137
 138         file->private_data = mvm->fw_error_dump;
 139         mvm->fw_error_dump = NULL;
 140         ret = 0;
 141
 142 out:
 143         mutex_unlock(&mvm->mutex);
 144         return ret;
 145 }
 146
 147 static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
 148                                             char __user *user_buf,
 149                                             size_t count, loff_t *ppos)
 150 {
 151         struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
 152         ssize_t bytes_read = 0;
 153         ssize_t bytes_read_trans = 0;
 154
 155         if (*ppos < dump_ptrs->op_mode_len)
 156                 bytes_read +=
 157                         simple_read_from_buffer(user_buf, count, ppos,
 158                                                 dump_ptrs->op_mode_ptr,
 159                                                 dump_ptrs->op_mode_len);
 160
 161         if (bytes_read < 0 || *ppos < dump_ptrs->op_mode_len)
 162                 return bytes_read;
 163
 164         if (dump_ptrs->trans_ptr) {
 165                 *ppos -= dump_ptrs->op_mode_len;
 166                 bytes_read_trans =
 167                         simple_read_from_buffer(user_buf + bytes_read,
 168                                                 count - bytes_read, ppos,
 169                                                 dump_ptrs->trans_ptr->data,
 170                                                 dump_ptrs->trans_ptr->len);
 171                 *ppos += dump_ptrs->op_mode_len;
 172
 173                 if (bytes_read_trans >= 0)
 174                         bytes_read += bytes_read_trans;
 175                 else if (!bytes_read)
 176                         /* propagate the failure */
 177                         return bytes_read_trans;
 178         }
 179
 180         return bytes_read;
 181
 182 }
 183
 184 static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
 185                                            struct file *file)
 186 {
 187         struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
 188
 189         vfree(dump_ptrs->op_mode_ptr);
 190         vfree(dump_ptrs->trans_ptr);
 191         kfree(dump_ptrs);
 192
 193         return 0;
 194 }
 195
 196 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 197                                    size_t count, loff_t *ppos)
 198 {
 199         struct iwl_mvm *mvm = file->private_data;
 200         const struct fw_img *img;
 201         unsigned int ofs, len;
 202         size_t ret;
 203         u8 *ptr;
 204
 205         if (!mvm->ucode_loaded)
 206                 return -EINVAL;
 207
 208         /* default is to dump the entire data segment */
 209         img = &mvm->fw->img[mvm->cur_ucode];
 210         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 211         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 212
 213         if (mvm->dbgfs_sram_len) {
 214                 ofs = mvm->dbgfs_sram_offset;
 215                 len = mvm->dbgfs_sram_len;
 216         }
 217
 218         ptr = kzalloc(len, GFP_KERNEL);
 219         if (!ptr)
 220                 return -ENOMEM;
 221
 222         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 223
 224         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 225
 226         kfree(ptr);
 227
 228         return ret;
 229 }
 230
 231 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 232                                     size_t count, loff_t *ppos)
 233 {
 234         const struct fw_img *img;
 235         u32 offset, len;
 236         u32 img_offset, img_len;
 237
 238         if (!mvm->ucode_loaded)
 239                 return -EINVAL;
 240
 241         img = &mvm->fw->img[mvm->cur_ucode];
 242         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 243         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 244
 245         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 246                 if ((offset & 0x3) || (len & 0x3))
 247                         return -EINVAL;
 248
 249                 if (offset + len > img_offset + img_len)
 250                         return -EINVAL;
 251
 252                 mvm->dbgfs_sram_offset = offset;
 253                 mvm->dbgfs_sram_len = len;
 254         } else {
 255                 mvm->dbgfs_sram_offset = 0;
 256                 mvm->dbgfs_sram_len = 0;
 257         }
 258
 259         return count;
 260 }
 261
 262 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
 263                                                   char __user *user_buf,
 264                                                   size_t count, loff_t *ppos)
 265 {
 266         struct iwl_mvm *mvm = file->private_data;
 267         char buf[16];
 268         int pos;
 269
 270         if (!mvm->temperature_test)
 271                 pos = scnprintf(buf , sizeof(buf), "disabled\n");
 272         else
 273                 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
 274
 275         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 276 }
 277
 278 /*
 279  * Set NIC Temperature
 280  * Cause the driver to ignore the actual NIC temperature reported by the FW
 281  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
 282  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
 283  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
 284  */
 285 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
 286                                                    char *buf, size_t count,
 287                                                    loff_t *ppos)
 288 {
 289         int temperature;
 290
 291         if (!mvm->ucode_loaded && !mvm->temperature_test)
 292                 return -EIO;
 293
 294         if (kstrtoint(buf, 10, &temperature))
 295                 return -EINVAL;
 296         /* not a legal temperature */
 297         if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
 298              temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
 299             temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
 300                 return -EINVAL;
 301
 302         mutex_lock(&mvm->mutex);
 303         if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
 304                 if (!mvm->temperature_test)
 305                         goto out;
 306
 307                 mvm->temperature_test = false;
 308                 /* Since we can't read the temp while awake, just set
 309                  * it to zero until we get the next RX stats from the
 310                  * firmware.
 311                  */
 312                 mvm->temperature = 0;
 313         } else {
 314                 mvm->temperature_test = true;
 315                 mvm->temperature = temperature;
 316         }
 317         IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
 318                        mvm->temperature_test ? "En" : "Dis" ,
 319                        mvm->temperature);
 320         /* handle the temperature change */
 321         iwl_mvm_tt_handler(mvm);
 322
 323 out:
 324         mutex_unlock(&mvm->mutex);
 325
 326         return count;
 327 }
 328
 329 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
 330                                        char __user *user_buf,
 331                                        size_t count, loff_t *ppos)
 332 {
 333         struct iwl_mvm *mvm = file->private_data;
 334         char buf[16];
 335         int pos, temp;
 336
 337         if (!mvm->ucode_loaded)
 338                 return -EIO;
 339
 340         mutex_lock(&mvm->mutex);
 341         temp = iwl_mvm_get_temp(mvm);
 342         mutex_unlock(&mvm->mutex);
 343
 344         if (temp < 0)
 345                 return temp;
 346
 347         pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
 348
 349         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 350 }
 351
 352 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 353                                        size_t count, loff_t *ppos)
 354 {
 355         struct iwl_mvm *mvm = file->private_data;
 356         struct ieee80211_sta *sta;
 357         char buf[400];
 358         int i, pos = 0, bufsz = sizeof(buf);
 359
 360         mutex_lock(&mvm->mutex);
 361
 362         for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
 363                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 364                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 365                                                 lockdep_is_held(&mvm->mutex));
 366                 if (!sta)
 367                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 368                 else if (IS_ERR(sta))
 369                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 370                                          PTR_ERR(sta));
 371                 else
 372                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 373                                          sta->addr);
 374         }
 375
 376         mutex_unlock(&mvm->mutex);
 377
 378         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 379 }
 380
 381 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 382                                                 char __user *user_buf,
 383                                                 size_t count, loff_t *ppos)
 384 {
 385         struct iwl_mvm *mvm = file->private_data;
 386         char buf[64];
 387         int bufsz = sizeof(buf);
 388         int pos = 0;
 389
 390         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 391                          mvm->disable_power_off);
 392         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 393                          mvm->disable_power_off_d3);
 394
 395         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 396 }
 397
 398 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 399                                                  size_t count, loff_t *ppos)
 400 {
 401         int ret, val;
 402
 403         if (!mvm->ucode_loaded)
 404                 return -EIO;
 405
 406         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 407                 if (sscanf(buf + 21, "%d", &val) != 1)
 408                         return -EINVAL;
 409                 mvm->disable_power_off = val;
 410         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 411                 if (sscanf(buf + 21, "%d", &val) != 1)
 412                         return -EINVAL;
 413                 mvm->disable_power_off_d3 = val;
 414         } else {
 415                 return -EINVAL;
 416         }
 417
 418         mutex_lock(&mvm->mutex);
 419         ret = iwl_mvm_power_update_device(mvm);
 420         mutex_unlock(&mvm->mutex);
 421
 422         return ret ?: count;
 423 }
 424
 425 #define BT_MBOX_MSG(_notif, _num, _field)                                    \
 426         ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 427         >> BT_MBOX##_num##_##_field##_POS)
 428
 429
 430 #define BT_MBOX_PRINT(_num, _field, _end)                                   \
 431                         pos += scnprintf(buf + pos, bufsz - pos,            \
 432                                          "\t%s: %d%s",                      \
 433                                          #_field,                           \
 434                                          BT_MBOX_MSG(notif, _num, _field),  \
 435                                          true ? "\n" : ", ");
 436
 437 static
 438 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
 439                            int pos, int bufsz)
 440 {
 441         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 442
 443         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 444         BT_MBOX_PRINT(0, LE_PROF1, false);
 445         BT_MBOX_PRINT(0, LE_PROF2, false);
 446         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 447         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 448         BT_MBOX_PRINT(0, INBAND_S, false);
 449         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 450         BT_MBOX_PRINT(0, LE_SCAN, false);
 451         BT_MBOX_PRINT(0, LE_ADV, false);
 452         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 453         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 454
 455         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 456
 457         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 458         BT_MBOX_PRINT(1, IP_SR, false);
 459         BT_MBOX_PRINT(1, LE_MSTR, false);
 460         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 461         BT_MBOX_PRINT(1, MSG_TYPE, false);
 462         BT_MBOX_PRINT(1, SSN, true);
 463
 464         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 465
 466         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 467         BT_MBOX_PRINT(2, PAG, false);
 468         BT_MBOX_PRINT(2, INQUIRY, false);
 469         BT_MBOX_PRINT(2, CONN, false);
 470         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 471         BT_MBOX_PRINT(2, DISC, false);
 472         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 473         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 474         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 475         BT_MBOX_PRINT(2, SCO_DURATION, true);
 476
 477         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 478
 479         BT_MBOX_PRINT(3, SCO_STATE, false);
 480         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 481         BT_MBOX_PRINT(3, A2DP_STATE, false);
 482         BT_MBOX_PRINT(3, ACL_STATE, false);
 483         BT_MBOX_PRINT(3, MSTR_STATE, false);
 484         BT_MBOX_PRINT(3, OBX_STATE, false);
 485         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 486         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 487         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 488         BT_MBOX_PRINT(3, INBAND_P, false);
 489         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 490         BT_MBOX_PRINT(3, SSN_2, false);
 491         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 492
 493         return pos;
 494 }
 495
 496 static
 497 int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
 498                                char *buf, int pos, int bufsz)
 499 {
 500         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 501
 502         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 503         BT_MBOX_PRINT(0, LE_PROF1, false);
 504         BT_MBOX_PRINT(0, LE_PROF2, false);
 505         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 506         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 507         BT_MBOX_PRINT(0, INBAND_S, false);
 508         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 509         BT_MBOX_PRINT(0, LE_SCAN, false);
 510         BT_MBOX_PRINT(0, LE_ADV, false);
 511         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 512         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 513
 514         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 515
 516         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 517         BT_MBOX_PRINT(1, IP_SR, false);
 518         BT_MBOX_PRINT(1, LE_MSTR, false);
 519         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 520         BT_MBOX_PRINT(1, MSG_TYPE, false);
 521         BT_MBOX_PRINT(1, SSN, true);
 522
 523         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 524
 525         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 526         BT_MBOX_PRINT(2, PAG, false);
 527         BT_MBOX_PRINT(2, INQUIRY, false);
 528         BT_MBOX_PRINT(2, CONN, false);
 529         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 530         BT_MBOX_PRINT(2, DISC, false);
 531         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 532         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 533         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 534         BT_MBOX_PRINT(2, SCO_DURATION, true);
 535
 536         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 537
 538         BT_MBOX_PRINT(3, SCO_STATE, false);
 539         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 540         BT_MBOX_PRINT(3, A2DP_STATE, false);
 541         BT_MBOX_PRINT(3, ACL_STATE, false);
 542         BT_MBOX_PRINT(3, MSTR_STATE, false);
 543         BT_MBOX_PRINT(3, OBX_STATE, false);
 544         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 545         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 546         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 547         BT_MBOX_PRINT(3, INBAND_P, false);
 548         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 549         BT_MBOX_PRINT(3, SSN_2, false);
 550         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 551
 552         return pos;
 553 }
 554
 555 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 556                                        size_t count, loff_t *ppos)
 557 {
 558         struct iwl_mvm *mvm = file->private_data;
 559         char *buf;
 560         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 561
 562         buf = kmalloc(bufsz, GFP_KERNEL);
 563         if (!buf)
 564                 return -ENOMEM;
 565
 566         mutex_lock(&mvm->mutex);
 567
 568         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 569                 struct iwl_bt_coex_profile_notif_old *notif =
 570                         &mvm->last_bt_notif_old;
 571
 572                 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
 573
 574                 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 575                                  notif->bt_ci_compliance);
 576                 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 577                                  le32_to_cpu(notif->primary_ch_lut));
 578                 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 579                                  le32_to_cpu(notif->secondary_ch_lut));
 580                 pos += scnprintf(buf+pos,
 581                                  bufsz-pos, "bt_activity_grading = %d\n",
 582                                  le32_to_cpu(notif->bt_activity_grading));
 583                 pos += scnprintf(buf+pos, bufsz-pos,
 584                                  "antenna isolation = %d CORUN LUT index = %d\n",
 585                                  mvm->last_ant_isol, mvm->last_corun_lut);
 586         } else {
 587                 struct iwl_bt_coex_profile_notif *notif =
 588                         &mvm->last_bt_notif;
 589
 590                 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
 591
 592                 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 593                                  notif->bt_ci_compliance);
 594                 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 595                                  le32_to_cpu(notif->primary_ch_lut));
 596                 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 597                                  le32_to_cpu(notif->secondary_ch_lut));
 598                 pos += scnprintf(buf+pos,
 599                                  bufsz-pos, "bt_activity_grading = %d\n",
 600                                  le32_to_cpu(notif->bt_activity_grading));
 601                 pos += scnprintf(buf+pos, bufsz-pos,
 602                                  "antenna isolation = %d CORUN LUT index = %d\n",
 603                                  mvm->last_ant_isol, mvm->last_corun_lut);
 604         }
 605
 606         mutex_unlock(&mvm->mutex);
 607
 608         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 609         kfree(buf);
 610
 611         return ret;
 612 }
 613 #undef BT_MBOX_PRINT
 614
 615 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 616                                      size_t count, loff_t *ppos)
 617 {
 618         struct iwl_mvm *mvm = file->private_data;
 619         char buf[256];
 620         int bufsz = sizeof(buf);
 621         int pos = 0;
 622
 623         mutex_lock(&mvm->mutex);
 624
 625         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 626                 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
 627
 628                 pos += scnprintf(buf+pos, bufsz-pos,
 629                                  "Channel inhibition CMD\n");
 630                 pos += scnprintf(buf+pos, bufsz-pos,
 631                                "\tPrimary Channel Bitmap 0x%016llx\n",
 632                                le64_to_cpu(cmd->bt_primary_ci));
 633                 pos += scnprintf(buf+pos, bufsz-pos,
 634                                "\tSecondary Channel Bitmap 0x%016llx\n",
 635                                le64_to_cpu(cmd->bt_secondary_ci));
 636
 637                 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
 638                 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
 639                                  iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
 640                 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
 641                                  iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
 642
 643         } else {
 644                 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 645
 646                 pos += scnprintf(buf+pos, bufsz-pos,
 647                                  "Channel inhibition CMD\n");
 648                 pos += scnprintf(buf+pos, bufsz-pos,
 649                                "\tPrimary Channel Bitmap 0x%016llx\n",
 650                                le64_to_cpu(cmd->bt_primary_ci));
 651                 pos += scnprintf(buf+pos, bufsz-pos,
 652                                "\tSecondary Channel Bitmap 0x%016llx\n",
 653                                le64_to_cpu(cmd->bt_secondary_ci));
 654
 655                 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
 656                 pos += scnprintf(buf+pos, bufsz-pos,
 657                                  "\tPrimary: ACK Kill Mask 0x%08x\n",
 658                                  iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
 659                 pos += scnprintf(buf+pos, bufsz-pos,
 660                                  "\tPrimary: CTS Kill Mask 0x%08x\n",
 661                                  iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
 662                 pos += scnprintf(buf+pos, bufsz-pos,
 663                                  "\tSecondary: ACK Kill Mask 0x%08x\n",
 664                                  iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[1]]);
 665                 pos += scnprintf(buf+pos, bufsz-pos,
 666                                  "\tSecondary: CTS Kill Mask 0x%08x\n",
 667                                  iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[1]]);
 668
 669         }
 670
 671         mutex_unlock(&mvm->mutex);
 672
 673         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 674 }
 675
 676 static ssize_t
 677 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 678                            size_t count, loff_t *ppos)
 679 {
 680         u32 bt_tx_prio;
 681
 682         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 683                 return -EINVAL;
 684         if (bt_tx_prio > 4)
 685                 return -EINVAL;
 686
 687         mvm->bt_tx_prio = bt_tx_prio;
 688
 689         return count;
 690 }
 691
 692 static ssize_t
 693 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
 694                              size_t count, loff_t *ppos)
 695 {
 696         static const char * const modes_str[BT_FORCE_ANT_MAX] = {
 697                 [BT_FORCE_ANT_DIS] = "dis",
 698                 [BT_FORCE_ANT_AUTO] = "auto",
 699                 [BT_FORCE_ANT_BT] = "bt",
 700                 [BT_FORCE_ANT_WIFI] = "wifi",
 701         };
 702         int ret, bt_force_ant_mode;
 703
 704         for (bt_force_ant_mode = 0;
 705              bt_force_ant_mode < ARRAY_SIZE(modes_str);
 706              bt_force_ant_mode++) {
 707                 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
 708                         break;
 709         }
 710
 711         if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
 712                 return -EINVAL;
 713
 714         ret = 0;
 715         mutex_lock(&mvm->mutex);
 716         if (mvm->bt_force_ant_mode == bt_force_ant_mode)
 717                 goto out;
 718
 719         mvm->bt_force_ant_mode = bt_force_ant_mode;
 720         IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
 721                        modes_str[mvm->bt_force_ant_mode]);
 722         ret = iwl_send_bt_init_conf(mvm);
 723
 724 out:
 725         mutex_unlock(&mvm->mutex);
 726         return ret ?: count;
 727 }
 728
 729 #define PRINT_STATS_LE32(_str, _val)                                    \
 730                          pos += scnprintf(buf + pos, bufsz - pos,       \
 731                                           fmt_table, _str,              \
 732                                           le32_to_cpu(_val))
 733
 734 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 735                                           char __user *user_buf, size_t count,
 736                                           loff_t *ppos)
 737 {
 738         struct iwl_mvm *mvm = file->private_data;
 739         static const char *fmt_table = "\t%-30s %10u\n";
 740         static const char *fmt_header = "%-32s\n";
 741         int pos = 0;
 742         char *buf;
 743         int ret;
 744         /* 43 is the size of each data line, 33 is the size of each header */
 745         size_t bufsz =
 746                 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
 747                 (4 * 33) + 1;
 748
 749         struct mvm_statistics_rx_phy *ofdm;
 750         struct mvm_statistics_rx_phy *cck;
 751         struct mvm_statistics_rx_non_phy *general;
 752         struct mvm_statistics_rx_ht_phy *ht;
 753
 754         buf = kzalloc(bufsz, GFP_KERNEL);
 755         if (!buf)
 756                 return -ENOMEM;
 757
 758         mutex_lock(&mvm->mutex);
 759
 760         ofdm = &mvm->rx_stats.ofdm;
 761         cck = &mvm->rx_stats.cck;
 762         general = &mvm->rx_stats.general;
 763         ht = &mvm->rx_stats.ofdm_ht;
 764
 765         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 766                          "Statistics_Rx - OFDM");
 767         PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
 768         PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
 769         PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
 770         PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
 771         PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
 772         PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
 773         PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
 774         PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
 775         PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
 776         PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
 777         PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
 778         PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
 779         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 780                          ofdm->rxe_frame_limit_overrun);
 781         PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
 782         PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
 783         PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
 784         PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
 785         PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
 786         PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
 787         PRINT_STATS_LE32("reserved", ofdm->reserved);
 788
 789         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 790                          "Statistics_Rx - CCK");
 791         PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
 792         PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
 793         PRINT_STATS_LE32("plcp_err", cck->plcp_err);
 794         PRINT_STATS_LE32("crc32_err", cck->crc32_err);
 795         PRINT_STATS_LE32("overrun_err", cck->overrun_err);
 796         PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
 797         PRINT_STATS_LE32("crc32_good", cck->crc32_good);
 798         PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
 799         PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
 800         PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
 801         PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
 802         PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
 803         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 804                          cck->rxe_frame_limit_overrun);
 805         PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
 806         PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
 807         PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
 808         PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
 809         PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
 810         PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
 811         PRINT_STATS_LE32("reserved", cck->reserved);
 812
 813         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 814                          "Statistics_Rx - GENERAL");
 815         PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
 816         PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
 817         PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
 818         PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
 819         PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
 820         PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
 821         PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
 822         PRINT_STATS_LE32("adc_rx_saturation_time",
 823                          general->adc_rx_saturation_time);
 824         PRINT_STATS_LE32("ina_detection_search_time",
 825                          general->ina_detection_search_time);
 826         PRINT_STATS_LE32("beacon_silence_rssi_a",
 827                          general->beacon_silence_rssi_a);
 828         PRINT_STATS_LE32("beacon_silence_rssi_b",
 829                          general->beacon_silence_rssi_b);
 830         PRINT_STATS_LE32("beacon_silence_rssi_c",
 831                          general->beacon_silence_rssi_c);
 832         PRINT_STATS_LE32("interference_data_flag",
 833                          general->interference_data_flag);
 834         PRINT_STATS_LE32("channel_load", general->channel_load);
 835         PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
 836         PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
 837         PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
 838         PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
 839         PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
 840         PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
 841         PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
 842         PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
 843         PRINT_STATS_LE32("mac_id", general->mac_id);
 844         PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
 845
 846         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 847                          "Statistics_Rx - HT");
 848         PRINT_STATS_LE32("plcp_err", ht->plcp_err);
 849         PRINT_STATS_LE32("overrun_err", ht->overrun_err);
 850         PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
 851         PRINT_STATS_LE32("crc32_good", ht->crc32_good);
 852         PRINT_STATS_LE32("crc32_err", ht->crc32_err);
 853         PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
 854         PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
 855         PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
 856         PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
 857         PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
 858
 859         mutex_unlock(&mvm->mutex);
 860
 861         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 862         kfree(buf);
 863
 864         return ret;
 865 }
 866 #undef PRINT_STAT_LE32
 867
 868 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 869                                           char __user *user_buf, size_t count,
 870                                           loff_t *ppos,
 871                                           struct iwl_mvm_frame_stats *stats)
 872 {
 873         char *buff, *pos, *endpos;
 874         int idx, i;
 875         int ret;
 876         static const size_t bufsz = 1024;
 877
 878         buff = kmalloc(bufsz, GFP_KERNEL);
 879         if (!buff)
 880                 return -ENOMEM;
 881
 882         spin_lock_bh(&mvm->drv_stats_lock);
 883
 884         pos = buff;
 885         endpos = pos + bufsz;
 886
 887         pos += scnprintf(pos, endpos - pos,
 888                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 889                          stats->legacy_frames,
 890                          stats->ht_frames,
 891                          stats->vht_frames);
 892         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 893                          stats->bw_20_frames,
 894                          stats->bw_40_frames,
 895                          stats->bw_80_frames);
 896         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 897                          stats->ngi_frames,
 898                          stats->sgi_frames);
 899         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 900                          stats->siso_frames,
 901                          stats->mimo2_frames);
 902         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 903                          stats->fail_frames,
 904                          stats->success_frames);
 905         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 906                          stats->agg_frames);
 907         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 908                          stats->ampdu_count);
 909         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 910                          stats->ampdu_count > 0 ?
 911                          (stats->agg_frames / stats->ampdu_count) : 0);
 912
 913         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 914
 915         idx = stats->last_frame_idx - 1;
 916         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 917                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 918                 if (stats->last_rates[idx] == 0)
 919                         continue;
 920                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 921                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 922                 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
 923         }
 924         spin_unlock_bh(&mvm->drv_stats_lock);
 925
 926         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 927         kfree(buff);
 928
 929         return ret;
 930 }
 931
 932 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 933                                            char __user *user_buf, size_t count,
 934                                            loff_t *ppos)
 935 {
 936         struct iwl_mvm *mvm = file->private_data;
 937
 938         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 939                                           &mvm->drv_rx_stats);
 940 }
 941
 942 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 943                                           size_t count, loff_t *ppos)
 944 {
 945         int ret;
 946
 947         mutex_lock(&mvm->mutex);
 948
 949         /* allow one more restart that we're provoking here */
 950         if (mvm->restart_fw >= 0)
 951                 mvm->restart_fw++;
 952
 953         /* take the return value to make compiler happy - it will fail anyway */
 954         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
 955
 956         mutex_unlock(&mvm->mutex);
 957
 958         return count;
 959 }
 960
 961 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
 962                                       size_t count, loff_t *ppos)
 963 {
 964         int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
 965         if (ret)
 966                 return ret;
 967
 968         iwl_force_nmi(mvm->trans);
 969
 970         iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
 971
 972         return count;
 973 }
 974
 975 static ssize_t
 976 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
 977                                 char __user *user_buf,
 978                                 size_t count, loff_t *ppos)
 979 {
 980         struct iwl_mvm *mvm = file->private_data;
 981         int pos = 0;
 982         char buf[32];
 983         const size_t bufsz = sizeof(buf);
 984
 985         /* print which antennas were set for the scan command by the user */
 986         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
 987         if (mvm->scan_rx_ant & ANT_A)
 988                 pos += scnprintf(buf + pos, bufsz - pos, "A");
 989         if (mvm->scan_rx_ant & ANT_B)
 990                 pos += scnprintf(buf + pos, bufsz - pos, "B");
 991         if (mvm->scan_rx_ant & ANT_C)
 992                 pos += scnprintf(buf + pos, bufsz - pos, "C");
 993         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
 994
 995         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 996 }
 997
 998 static ssize_t
 999 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1000                                  size_t count, loff_t *ppos)
1001 {
1002         u8 scan_rx_ant;
1003
1004         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1005                 return -EINVAL;
1006         if (scan_rx_ant > ANT_ABC)
1007                 return -EINVAL;
1008         if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
1009                 return -EINVAL;
1010
1011         mvm->scan_rx_ant = scan_rx_ant;
1012
1013         return count;
1014 }
1015
1016 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1017 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1018 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1019                                             char __user *user_buf,
1020                                             size_t count, loff_t *ppos)
1021 {
1022         struct iwl_mvm *mvm = file->private_data;
1023         struct iwl_bcast_filter_cmd cmd;
1024         const struct iwl_fw_bcast_filter *filter;
1025         char *buf;
1026         int bufsz = 1024;
1027         int i, j, pos = 0;
1028         ssize_t ret;
1029
1030         buf = kzalloc(bufsz, GFP_KERNEL);
1031         if (!buf)
1032                 return -ENOMEM;
1033
1034         mutex_lock(&mvm->mutex);
1035         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1036                 ADD_TEXT("None\n");
1037                 mutex_unlock(&mvm->mutex);
1038                 goto out;
1039         }
1040         mutex_unlock(&mvm->mutex);
1041
1042         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1043                 filter = &cmd.filters[i];
1044
1045                 ADD_TEXT("Filter [%d]:\n", i);
1046                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1047                 ADD_TEXT("\tFrame Type: %s\n",
1048                          filter->frame_type ? "IPv4" : "Generic");
1049
1050                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1051                         const struct iwl_fw_bcast_filter_attr *attr;
1052
1053                         attr = &filter->attrs[j];
1054                         if (!attr->mask)
1055                                 break;
1056
1057                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1058                                  j, attr->offset,
1059                                  attr->offset_type ? "IP End" :
1060                                                      "Payload Start",
1061                                  be32_to_cpu(attr->mask),
1062                                  be32_to_cpu(attr->val),
1063                                  le16_to_cpu(attr->reserved1));
1064                 }
1065         }
1066 out:
1067         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1068         kfree(buf);
1069         return ret;
1070 }
1071
1072 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1073                                              size_t count, loff_t *ppos)
1074 {
1075         int pos, next_pos;
1076         struct iwl_fw_bcast_filter filter = {};
1077         struct iwl_bcast_filter_cmd cmd;
1078         u32 filter_id, attr_id, mask, value;
1079         int err = 0;
1080
1081         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1082                    &filter.frame_type, &pos) != 3)
1083                 return -EINVAL;
1084
1085         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1086             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1087                 return -EINVAL;
1088
1089         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1090              attr_id++) {
1091                 struct iwl_fw_bcast_filter_attr *attr =
1092                                 &filter.attrs[attr_id];
1093
1094                 if (pos >= count)
1095                         break;
1096
1097                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1098                            &attr->offset, &attr->offset_type,
1099                            &mask, &value, &next_pos) != 4)
1100                         return -EINVAL;
1101
1102                 attr->mask = cpu_to_be32(mask);
1103                 attr->val = cpu_to_be32(value);
1104                 if (mask)
1105                         filter.num_attrs++;
1106
1107                 pos += next_pos;
1108         }
1109
1110         mutex_lock(&mvm->mutex);
1111         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1112                &filter, sizeof(filter));
1113
1114         /* send updated bcast filtering configuration */
1115         if (mvm->dbgfs_bcast_filtering.override &&
1116             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1117                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1118                                            sizeof(cmd), &cmd);
1119         mutex_unlock(&mvm->mutex);
1120
1121         return err ?: count;
1122 }
1123
1124 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1125                                                  char __user *user_buf,
1126                                                  size_t count, loff_t *ppos)
1127 {
1128         struct iwl_mvm *mvm = file->private_data;
1129         struct iwl_bcast_filter_cmd cmd;
1130         char *buf;
1131         int bufsz = 1024;
1132         int i, pos = 0;
1133         ssize_t ret;
1134
1135         buf = kzalloc(bufsz, GFP_KERNEL);
1136         if (!buf)
1137                 return -ENOMEM;
1138
1139         mutex_lock(&mvm->mutex);
1140         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1141                 ADD_TEXT("None\n");
1142                 mutex_unlock(&mvm->mutex);
1143                 goto out;
1144         }
1145         mutex_unlock(&mvm->mutex);
1146
1147         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1148                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1149
1150                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1151                          i, mac->default_discard, mac->attached_filters);
1152         }
1153 out:
1154         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1155         kfree(buf);
1156         return ret;
1157 }
1158
1159 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1160                                                   char *buf, size_t count,
1161                                                   loff_t *ppos)
1162 {
1163         struct iwl_bcast_filter_cmd cmd;
1164         struct iwl_fw_bcast_mac mac = {};
1165         u32 mac_id, attached_filters;
1166         int err = 0;
1167
1168         if (!mvm->bcast_filters)
1169                 return -ENOENT;
1170
1171         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1172                    &attached_filters) != 3)
1173                 return -EINVAL;
1174
1175         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1176             mac.default_discard > 1 ||
1177             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1178                 return -EINVAL;
1179
1180         mac.attached_filters = cpu_to_le16(attached_filters);
1181
1182         mutex_lock(&mvm->mutex);
1183         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1184                &mac, sizeof(mac));
1185
1186         /* send updated bcast filtering configuration */
1187         if (mvm->dbgfs_bcast_filtering.override &&
1188             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1189                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1190                                            sizeof(cmd), &cmd);
1191         mutex_unlock(&mvm->mutex);
1192
1193         return err ?: count;
1194 }
1195 #endif
1196
1197 #ifdef CONFIG_PM_SLEEP
1198 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1199                                        size_t count, loff_t *ppos)
1200 {
1201         int store;
1202
1203         if (sscanf(buf, "%d", &store) != 1)
1204                 return -EINVAL;
1205
1206         mvm->store_d3_resume_sram = store;
1207
1208         return count;
1209 }
1210
1211 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1212                                       size_t count, loff_t *ppos)
1213 {
1214         struct iwl_mvm *mvm = file->private_data;
1215         const struct fw_img *img;
1216         int ofs, len, pos = 0;
1217         size_t bufsz, ret;
1218         char *buf;
1219         u8 *ptr = mvm->d3_resume_sram;
1220
1221         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1222         len = img->sec[IWL_UCODE_SECTION_DATA].len;
1223
1224         bufsz = len * 4 + 256;
1225         buf = kzalloc(bufsz, GFP_KERNEL);
1226         if (!buf)
1227                 return -ENOMEM;
1228
1229         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1230                          mvm->store_d3_resume_sram ? "en" : "dis");
1231
1232         if (ptr) {
1233                 for (ofs = 0; ofs < len; ofs += 16) {
1234                         pos += scnprintf(buf + pos, bufsz - pos,
1235                                          "0x%.4x ", ofs);
1236                         hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1237                                            bufsz - pos, false);
1238                         pos += strlen(buf + pos);
1239                         if (bufsz - pos > 0)
1240                                 buf[pos++] = '\n';
1241                 }
1242         } else {
1243                 pos += scnprintf(buf + pos, bufsz - pos,
1244                                  "(no data captured)\n");
1245         }
1246
1247         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1248
1249         kfree(buf);
1250
1251         return ret;
1252 }
1253 #endif
1254
1255 #define PRINT_MVM_REF(ref) do {                                         \
1256         if (mvm->refs[ref])                                             \
1257                 pos += scnprintf(buf + pos, bufsz - pos,                \
1258                                  "\t(0x%lx): %d %s\n",                  \
1259                                  BIT(ref), mvm->refs[ref], #ref);       \
1260 } while (0)
1261
1262 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1263                                         char __user *user_buf,
1264                                         size_t count, loff_t *ppos)
1265 {
1266         struct iwl_mvm *mvm = file->private_data;
1267         int i, pos = 0;
1268         char buf[256];
1269         const size_t bufsz = sizeof(buf);
1270         u32 refs = 0;
1271
1272         for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1273                 if (mvm->refs[i])
1274                         refs |= BIT(i);
1275
1276         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1277                          refs);
1278
1279         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1280         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1281         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1282         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1283         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1284         PRINT_MVM_REF(IWL_MVM_REF_USER);
1285         PRINT_MVM_REF(IWL_MVM_REF_TX);
1286         PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1287         PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1288         PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1289         PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1290         PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1291         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1292         PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1293         PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1294         PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1295         PRINT_MVM_REF(IWL_MVM_REF_NMI);
1296         PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1297         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1298
1299         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1300 }
1301
1302 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1303                                          size_t count, loff_t *ppos)
1304 {
1305         unsigned long value;
1306         int ret;
1307         bool taken;
1308
1309         ret = kstrtoul(buf, 10, &value);
1310         if (ret < 0)
1311                 return ret;
1312
1313         mutex_lock(&mvm->mutex);
1314
1315         taken = mvm->refs[IWL_MVM_REF_USER];
1316         if (value == 1 && !taken)
1317                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1318         else if (value == 0 && taken)
1319                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1320         else
1321                 ret = -EINVAL;
1322
1323         mutex_unlock(&mvm->mutex);
1324
1325         if (ret < 0)
1326                 return ret;
1327         return count;
1328 }
1329
1330 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1331         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1332 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1333         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1334 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1335                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1336                                          &iwl_dbgfs_##name##_ops))      \
1337                         goto err;                                       \
1338         } while (0)
1339 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1340         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1341
1342 static ssize_t
1343 iwl_dbgfs_prph_reg_read(struct file *file,
1344                         char __user *user_buf,
1345                         size_t count, loff_t *ppos)
1346 {
1347         struct iwl_mvm *mvm = file->private_data;
1348         int pos = 0;
1349         char buf[32];
1350         const size_t bufsz = sizeof(buf);
1351         int ret;
1352
1353         if (!mvm->dbgfs_prph_reg_addr)
1354                 return -EINVAL;
1355
1356         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1357         if (ret)
1358                 return ret;
1359
1360         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1361                 mvm->dbgfs_prph_reg_addr,
1362                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1363
1364         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1365
1366         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1367 }
1368
1369 static ssize_t
1370 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1371                          size_t count, loff_t *ppos)
1372 {
1373         u8 args;
1374         u32 value;
1375         int ret;
1376
1377         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1378         /* if we only want to set the reg address - nothing more to do */
1379         if (args == 1)
1380                 goto out;
1381
1382         /* otherwise, make sure we have both address and value */
1383         if (args != 2)
1384                 return -EINVAL;
1385
1386         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1387         if (ret)
1388                 return ret;
1389
1390         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1391
1392         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1393 out:
1394         return count;
1395 }
1396
1397 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1398
1399 /* Device wide debugfs entries */
1400 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1401 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1402 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1403 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1404 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1405 MVM_DEBUGFS_READ_FILE_OPS(stations);
1406 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1407 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1408 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1409 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1410 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1411 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1412 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1413 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1414 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1415 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1416 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1417
1418 static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
1419         .open = iwl_dbgfs_fw_error_dump_open,
1420         .read = iwl_dbgfs_fw_error_dump_read,
1421         .release = iwl_dbgfs_fw_error_dump_release,
1422 };
1423
1424 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1425 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1426 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1427 #endif
1428
1429 #ifdef CONFIG_PM_SLEEP
1430 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1431 #endif
1432
1433 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1434 {
1435         struct dentry *bcast_dir __maybe_unused;
1436         char buf[100];
1437
1438         spin_lock_init(&mvm->drv_stats_lock);
1439
1440         mvm->debugfs_dir = dbgfs_dir;
1441
1442         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1443         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1444         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1445         MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1446                              S_IWUSR | S_IRUSR);
1447         MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1448         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1449         MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
1450         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1451         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1452         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1453                              S_IRUSR | S_IWUSR);
1454         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1455         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1456         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1457         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1458         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1459         MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1460         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1461                              S_IWUSR | S_IRUSR);
1462         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1463         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1464
1465 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1466         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1467                 bcast_dir = debugfs_create_dir("bcast_filtering",
1468                                                mvm->debugfs_dir);
1469                 if (!bcast_dir)
1470                         goto err;
1471
1472                 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1473                                 bcast_dir,
1474                                 &mvm->dbgfs_bcast_filtering.override))
1475                         goto err;
1476
1477                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1478                                            bcast_dir, S_IWUSR | S_IRUSR);
1479                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1480                                            bcast_dir, S_IWUSR | S_IRUSR);
1481         }
1482 #endif
1483
1484 #ifdef CONFIG_PM_SLEEP
1485         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1486         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1487         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1488                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1489                 goto err;
1490 #endif
1491
1492         if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,
1493                                mvm->debugfs_dir,
1494                                &mvm->low_latency_agg_frame_limit))
1495                 goto err;
1496         if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1497                                mvm->debugfs_dir, &mvm->ps_disabled))
1498                 goto err;
1499         if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1500                                   mvm->debugfs_dir, &mvm->nvm_hw_blob))
1501                 goto err;
1502         if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1503                                   mvm->debugfs_dir, &mvm->nvm_sw_blob))
1504                 goto err;
1505         if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1506                                   mvm->debugfs_dir, &mvm->nvm_calib_blob))
1507                 goto err;
1508         if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1509                                   mvm->debugfs_dir, &mvm->nvm_prod_blob))
1510                 goto err;
1511
1512         /*
1513          * Create a symlink with mac80211. It will be removed when mac80211
1514          * exists (before the opmode exists which removes the target.)
1515          */
1516         snprintf(buf, 100, "../../%s/%s",
1517                  dbgfs_dir->d_parent->d_parent->d_name.name,
1518                  dbgfs_dir->d_parent->d_name.name);
1519         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1520                 goto err;
1521
1522         return 0;
1523 err:
1524         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1525         return -ENOMEM;
1526 }