drivers/net/wireless/intel/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  * Copyright(c) 2016 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * All rights reserved.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  *
  43  *  * Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  *  * Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in
  47  *    the documentation and/or other materials provided with the
  48  *    distribution.
  49  *  * Neither the name Intel Corporation nor the names of its
  50  *    contributors may be used to endorse or promote products derived
  51  *    from this software without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  54  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  55  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  56  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  57  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  58  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  59  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  63  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  64  *
  65  *****************************************************************************/
  66 #include <linux/vmalloc.h>
  67 #include <linux/ieee80211.h>
  68 #include <linux/netdevice.h>
  69
  70 #include "mvm.h"
  71 #include "fw-dbg.h"
  72 #include "sta.h"
  73 #include "iwl-io.h"
  74 #include "debugfs.h"
  75 #include "iwl-fw-error-dump.h"
  76
  77 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
  78                                           char __user *user_buf,
  79                                           size_t count, loff_t *ppos)
  80 {
  81         struct iwl_mvm *mvm = file->private_data;
  82         char buf[16];
  83         int pos, budget;
  84
  85         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
  86                 return -EIO;
  87
  88         mutex_lock(&mvm->mutex);
  89         budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
  90         mutex_unlock(&mvm->mutex);
  91
  92         if (budget < 0)
  93                 return budget;
  94
  95         pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
  96
  97         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
  98 }
  99
 100 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
 101                                          size_t count, loff_t *ppos)
 102 {
 103         int ret;
 104
 105         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 106                 return -EIO;
 107
 108         mutex_lock(&mvm->mutex);
 109         ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
 110         mutex_unlock(&mvm->mutex);
 111
 112         return ret ?: count;
 113 }
 114
 115 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
 116                                         size_t count, loff_t *ppos)
 117 {
 118         int ret;
 119         u32 scd_q_msk;
 120
 121         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 122                 return -EIO;
 123
 124         if (sscanf(buf, "%x", &scd_q_msk) != 1)
 125                 return -EINVAL;
 126
 127         IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
 128
 129         mutex_lock(&mvm->mutex);
 130         ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
 131         mutex_unlock(&mvm->mutex);
 132
 133         return ret;
 134 }
 135
 136 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
 137                                          size_t count, loff_t *ppos)
 138 {
 139         struct iwl_mvm_sta *mvmsta;
 140         int sta_id, drain, ret;
 141
 142         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 143                 return -EIO;
 144
 145         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 146                 return -EINVAL;
 147         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 148                 return -EINVAL;
 149         if (drain < 0 || drain > 1)
 150                 return -EINVAL;
 151
 152         mutex_lock(&mvm->mutex);
 153
 154         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 155
 156         if (!mvmsta)
 157                 ret = -ENOENT;
 158         else
 159                 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
 160
 161         mutex_unlock(&mvm->mutex);
 162
 163         return ret;
 164 }
 165
 166 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 167                                    size_t count, loff_t *ppos)
 168 {
 169         struct iwl_mvm *mvm = file->private_data;
 170         const struct fw_img *img;
 171         unsigned int ofs, len;
 172         size_t ret;
 173         u8 *ptr;
 174
 175         if (!mvm->ucode_loaded)
 176                 return -EINVAL;
 177
 178         /* default is to dump the entire data segment */
 179         img = &mvm->fw->img[mvm->cur_ucode];
 180         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 181         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 182
 183         if (mvm->dbgfs_sram_len) {
 184                 ofs = mvm->dbgfs_sram_offset;
 185                 len = mvm->dbgfs_sram_len;
 186         }
 187
 188         ptr = kzalloc(len, GFP_KERNEL);
 189         if (!ptr)
 190                 return -ENOMEM;
 191
 192         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 193
 194         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 195
 196         kfree(ptr);
 197
 198         return ret;
 199 }
 200
 201 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 202                                     size_t count, loff_t *ppos)
 203 {
 204         const struct fw_img *img;
 205         u32 offset, len;
 206         u32 img_offset, img_len;
 207
 208         if (!mvm->ucode_loaded)
 209                 return -EINVAL;
 210
 211         img = &mvm->fw->img[mvm->cur_ucode];
 212         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 213         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 214
 215         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 216                 if ((offset & 0x3) || (len & 0x3))
 217                         return -EINVAL;
 218
 219                 if (offset + len > img_offset + img_len)
 220                         return -EINVAL;
 221
 222                 mvm->dbgfs_sram_offset = offset;
 223                 mvm->dbgfs_sram_len = len;
 224         } else {
 225                 mvm->dbgfs_sram_offset = 0;
 226                 mvm->dbgfs_sram_len = 0;
 227         }
 228
 229         return count;
 230 }
 231
 232 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
 233                                                   char __user *user_buf,
 234                                                   size_t count, loff_t *ppos)
 235 {
 236         struct iwl_mvm *mvm = file->private_data;
 237         char buf[16];
 238         int pos;
 239
 240         if (!mvm->temperature_test)
 241                 pos = scnprintf(buf , sizeof(buf), "disabled\n");
 242         else
 243                 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
 244
 245         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 246 }
 247
 248 /*
 249  * Set NIC Temperature
 250  * Cause the driver to ignore the actual NIC temperature reported by the FW
 251  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
 252  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
 253  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
 254  */
 255 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
 256                                                    char *buf, size_t count,
 257                                                    loff_t *ppos)
 258 {
 259         int temperature;
 260
 261         if (!mvm->ucode_loaded && !mvm->temperature_test)
 262                 return -EIO;
 263
 264         if (kstrtoint(buf, 10, &temperature))
 265                 return -EINVAL;
 266         /* not a legal temperature */
 267         if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
 268              temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
 269             temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
 270                 return -EINVAL;
 271
 272         mutex_lock(&mvm->mutex);
 273         if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
 274                 if (!mvm->temperature_test)
 275                         goto out;
 276
 277                 mvm->temperature_test = false;
 278                 /* Since we can't read the temp while awake, just set
 279                  * it to zero until we get the next RX stats from the
 280                  * firmware.
 281                  */
 282                 mvm->temperature = 0;
 283         } else {
 284                 mvm->temperature_test = true;
 285                 mvm->temperature = temperature;
 286         }
 287         IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
 288                        mvm->temperature_test ? "En" : "Dis" ,
 289                        mvm->temperature);
 290         /* handle the temperature change */
 291         iwl_mvm_tt_handler(mvm);
 292
 293 out:
 294         mutex_unlock(&mvm->mutex);
 295
 296         return count;
 297 }
 298
 299 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
 300                                        char __user *user_buf,
 301                                        size_t count, loff_t *ppos)
 302 {
 303         struct iwl_mvm *mvm = file->private_data;
 304         char buf[16];
 305         int pos, ret;
 306         s32 temp;
 307
 308         if (!mvm->ucode_loaded)
 309                 return -EIO;
 310
 311         mutex_lock(&mvm->mutex);
 312         ret = iwl_mvm_get_temp(mvm, &temp);
 313         mutex_unlock(&mvm->mutex);
 314
 315         if (ret)
 316                 return -EIO;
 317
 318         pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
 319
 320         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 321 }
 322
 323 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 324                                        size_t count, loff_t *ppos)
 325 {
 326         struct iwl_mvm *mvm = file->private_data;
 327         struct ieee80211_sta *sta;
 328         char buf[400];
 329         int i, pos = 0, bufsz = sizeof(buf);
 330
 331         mutex_lock(&mvm->mutex);
 332
 333         for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
 334                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 335                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 336                                                 lockdep_is_held(&mvm->mutex));
 337                 if (!sta)
 338                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 339                 else if (IS_ERR(sta))
 340                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 341                                          PTR_ERR(sta));
 342                 else
 343                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 344                                          sta->addr);
 345         }
 346
 347         mutex_unlock(&mvm->mutex);
 348
 349         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 350 }
 351
 352 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 353                                                 char __user *user_buf,
 354                                                 size_t count, loff_t *ppos)
 355 {
 356         struct iwl_mvm *mvm = file->private_data;
 357         char buf[64];
 358         int bufsz = sizeof(buf);
 359         int pos = 0;
 360
 361         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 362                          mvm->disable_power_off);
 363         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 364                          mvm->disable_power_off_d3);
 365
 366         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 367 }
 368
 369 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 370                                                  size_t count, loff_t *ppos)
 371 {
 372         int ret, val;
 373
 374         if (!mvm->ucode_loaded)
 375                 return -EIO;
 376
 377         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 378                 if (sscanf(buf + 21, "%d", &val) != 1)
 379                         return -EINVAL;
 380                 mvm->disable_power_off = val;
 381         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 382                 if (sscanf(buf + 21, "%d", &val) != 1)
 383                         return -EINVAL;
 384                 mvm->disable_power_off_d3 = val;
 385         } else {
 386                 return -EINVAL;
 387         }
 388
 389         mutex_lock(&mvm->mutex);
 390         ret = iwl_mvm_power_update_device(mvm);
 391         mutex_unlock(&mvm->mutex);
 392
 393         return ret ?: count;
 394 }
 395
 396 #define BT_MBOX_MSG(_notif, _num, _field)                                    \
 397         ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 398         >> BT_MBOX##_num##_##_field##_POS)
 399
 400
 401 #define BT_MBOX_PRINT(_num, _field, _end)                                   \
 402                         pos += scnprintf(buf + pos, bufsz - pos,            \
 403                                          "\t%s: %d%s",                      \
 404                                          #_field,                           \
 405                                          BT_MBOX_MSG(notif, _num, _field),  \
 406                                          true ? "\n" : ", ");
 407
 408 static
 409 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
 410                            int pos, int bufsz)
 411 {
 412         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 413
 414         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 415         BT_MBOX_PRINT(0, LE_PROF1, false);
 416         BT_MBOX_PRINT(0, LE_PROF2, false);
 417         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 418         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 419         BT_MBOX_PRINT(0, INBAND_S, false);
 420         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 421         BT_MBOX_PRINT(0, LE_SCAN, false);
 422         BT_MBOX_PRINT(0, LE_ADV, false);
 423         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 424         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 425
 426         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 427
 428         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 429         BT_MBOX_PRINT(1, IP_SR, false);
 430         BT_MBOX_PRINT(1, LE_MSTR, false);
 431         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 432         BT_MBOX_PRINT(1, MSG_TYPE, false);
 433         BT_MBOX_PRINT(1, SSN, true);
 434
 435         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 436
 437         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 438         BT_MBOX_PRINT(2, PAG, false);
 439         BT_MBOX_PRINT(2, INQUIRY, false);
 440         BT_MBOX_PRINT(2, CONN, false);
 441         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 442         BT_MBOX_PRINT(2, DISC, false);
 443         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 444         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 445         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 446         BT_MBOX_PRINT(2, SCO_DURATION, true);
 447
 448         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 449
 450         BT_MBOX_PRINT(3, SCO_STATE, false);
 451         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 452         BT_MBOX_PRINT(3, A2DP_STATE, false);
 453         BT_MBOX_PRINT(3, ACL_STATE, false);
 454         BT_MBOX_PRINT(3, MSTR_STATE, false);
 455         BT_MBOX_PRINT(3, OBX_STATE, false);
 456         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 457         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 458         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 459         BT_MBOX_PRINT(3, INBAND_P, false);
 460         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 461         BT_MBOX_PRINT(3, SSN_2, false);
 462         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 463
 464         return pos;
 465 }
 466
 467 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 468                                        size_t count, loff_t *ppos)
 469 {
 470         struct iwl_mvm *mvm = file->private_data;
 471         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 472         char *buf;
 473         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 474
 475         buf = kmalloc(bufsz, GFP_KERNEL);
 476         if (!buf)
 477                 return -ENOMEM;
 478
 479         mutex_lock(&mvm->mutex);
 480
 481         pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
 482
 483         pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
 484                          notif->bt_ci_compliance);
 485         pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
 486                          le32_to_cpu(notif->primary_ch_lut));
 487         pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
 488                          le32_to_cpu(notif->secondary_ch_lut));
 489         pos += scnprintf(buf + pos,
 490                          bufsz - pos, "bt_activity_grading = %d\n",
 491                          le32_to_cpu(notif->bt_activity_grading));
 492         pos += scnprintf(buf + pos, bufsz - pos,
 493                          "antenna isolation = %d CORUN LUT index = %d\n",
 494                          mvm->last_ant_isol, mvm->last_corun_lut);
 495         pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
 496                          (notif->ttc_rrc_status >> 4) & 0xF);
 497         pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
 498                          notif->ttc_rrc_status & 0xF);
 499
 500         pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
 501                          IWL_MVM_BT_COEX_SYNC2SCO);
 502         pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
 503                          IWL_MVM_BT_COEX_MPLUT);
 504         pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n",
 505                          IWL_MVM_BT_COEX_CORUNNING);
 506
 507         mutex_unlock(&mvm->mutex);
 508
 509         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 510         kfree(buf);
 511
 512         return ret;
 513 }
 514 #undef BT_MBOX_PRINT
 515
 516 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 517                                      size_t count, loff_t *ppos)
 518 {
 519         struct iwl_mvm *mvm = file->private_data;
 520         struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 521         char buf[256];
 522         int bufsz = sizeof(buf);
 523         int pos = 0;
 524
 525         mutex_lock(&mvm->mutex);
 526
 527         pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
 528         pos += scnprintf(buf + pos, bufsz - pos,
 529                          "\tPrimary Channel Bitmap 0x%016llx\n",
 530                          le64_to_cpu(cmd->bt_primary_ci));
 531         pos += scnprintf(buf + pos, bufsz - pos,
 532                          "\tSecondary Channel Bitmap 0x%016llx\n",
 533                          le64_to_cpu(cmd->bt_secondary_ci));
 534
 535         mutex_unlock(&mvm->mutex);
 536
 537         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 538 }
 539
 540 static ssize_t
 541 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 542                            size_t count, loff_t *ppos)
 543 {
 544         u32 bt_tx_prio;
 545
 546         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 547                 return -EINVAL;
 548         if (bt_tx_prio > 4)
 549                 return -EINVAL;
 550
 551         mvm->bt_tx_prio = bt_tx_prio;
 552
 553         return count;
 554 }
 555
 556 static ssize_t
 557 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
 558                              size_t count, loff_t *ppos)
 559 {
 560         static const char * const modes_str[BT_FORCE_ANT_MAX] = {
 561                 [BT_FORCE_ANT_DIS] = "dis",
 562                 [BT_FORCE_ANT_AUTO] = "auto",
 563                 [BT_FORCE_ANT_BT] = "bt",
 564                 [BT_FORCE_ANT_WIFI] = "wifi",
 565         };
 566         int ret, bt_force_ant_mode;
 567
 568         for (bt_force_ant_mode = 0;
 569              bt_force_ant_mode < ARRAY_SIZE(modes_str);
 570              bt_force_ant_mode++) {
 571                 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
 572                         break;
 573         }
 574
 575         if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
 576                 return -EINVAL;
 577
 578         ret = 0;
 579         mutex_lock(&mvm->mutex);
 580         if (mvm->bt_force_ant_mode == bt_force_ant_mode)
 581                 goto out;
 582
 583         mvm->bt_force_ant_mode = bt_force_ant_mode;
 584         IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
 585                        modes_str[mvm->bt_force_ant_mode]);
 586         ret = iwl_send_bt_init_conf(mvm);
 587
 588 out:
 589         mutex_unlock(&mvm->mutex);
 590         return ret ?: count;
 591 }
 592
 593 #define PRINT_STATS_LE32(_struct, _memb)                                \
 594                          pos += scnprintf(buf + pos, bufsz - pos,       \
 595                                           fmt_table, #_memb,            \
 596                                           le32_to_cpu(_struct->_memb))
 597
 598 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 599                                           char __user *user_buf, size_t count,
 600                                           loff_t *ppos)
 601 {
 602         struct iwl_mvm *mvm = file->private_data;
 603         static const char *fmt_table = "\t%-30s %10u\n";
 604         static const char *fmt_header = "%-32s\n";
 605         int pos = 0;
 606         char *buf;
 607         int ret;
 608         /* 43 is the size of each data line, 33 is the size of each header */
 609         size_t bufsz =
 610                 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
 611                 (4 * 33) + 1;
 612
 613         struct mvm_statistics_rx_phy *ofdm;
 614         struct mvm_statistics_rx_phy *cck;
 615         struct mvm_statistics_rx_non_phy *general;
 616         struct mvm_statistics_rx_ht_phy *ht;
 617
 618         buf = kzalloc(bufsz, GFP_KERNEL);
 619         if (!buf)
 620                 return -ENOMEM;
 621
 622         mutex_lock(&mvm->mutex);
 623
 624         ofdm = &mvm->rx_stats.ofdm;
 625         cck = &mvm->rx_stats.cck;
 626         general = &mvm->rx_stats.general;
 627         ht = &mvm->rx_stats.ofdm_ht;
 628
 629         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 630                          "Statistics_Rx - OFDM");
 631         PRINT_STATS_LE32(ofdm, ina_cnt);
 632         PRINT_STATS_LE32(ofdm, fina_cnt);
 633         PRINT_STATS_LE32(ofdm, plcp_err);
 634         PRINT_STATS_LE32(ofdm, crc32_err);
 635         PRINT_STATS_LE32(ofdm, overrun_err);
 636         PRINT_STATS_LE32(ofdm, early_overrun_err);
 637         PRINT_STATS_LE32(ofdm, crc32_good);
 638         PRINT_STATS_LE32(ofdm, false_alarm_cnt);
 639         PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
 640         PRINT_STATS_LE32(ofdm, sfd_timeout);
 641         PRINT_STATS_LE32(ofdm, fina_timeout);
 642         PRINT_STATS_LE32(ofdm, unresponded_rts);
 643         PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 644         PRINT_STATS_LE32(ofdm, sent_ack_cnt);
 645         PRINT_STATS_LE32(ofdm, sent_cts_cnt);
 646         PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 647         PRINT_STATS_LE32(ofdm, dsp_self_kill);
 648         PRINT_STATS_LE32(ofdm, mh_format_err);
 649         PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
 650         PRINT_STATS_LE32(ofdm, reserved);
 651
 652         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 653                          "Statistics_Rx - CCK");
 654         PRINT_STATS_LE32(cck, ina_cnt);
 655         PRINT_STATS_LE32(cck, fina_cnt);
 656         PRINT_STATS_LE32(cck, plcp_err);
 657         PRINT_STATS_LE32(cck, crc32_err);
 658         PRINT_STATS_LE32(cck, overrun_err);
 659         PRINT_STATS_LE32(cck, early_overrun_err);
 660         PRINT_STATS_LE32(cck, crc32_good);
 661         PRINT_STATS_LE32(cck, false_alarm_cnt);
 662         PRINT_STATS_LE32(cck, fina_sync_err_cnt);
 663         PRINT_STATS_LE32(cck, sfd_timeout);
 664         PRINT_STATS_LE32(cck, fina_timeout);
 665         PRINT_STATS_LE32(cck, unresponded_rts);
 666         PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 667         PRINT_STATS_LE32(cck, sent_ack_cnt);
 668         PRINT_STATS_LE32(cck, sent_cts_cnt);
 669         PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 670         PRINT_STATS_LE32(cck, dsp_self_kill);
 671         PRINT_STATS_LE32(cck, mh_format_err);
 672         PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
 673         PRINT_STATS_LE32(cck, reserved);
 674
 675         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 676                          "Statistics_Rx - GENERAL");
 677         PRINT_STATS_LE32(general, bogus_cts);
 678         PRINT_STATS_LE32(general, bogus_ack);
 679         PRINT_STATS_LE32(general, non_bssid_frames);
 680         PRINT_STATS_LE32(general, filtered_frames);
 681         PRINT_STATS_LE32(general, non_channel_beacons);
 682         PRINT_STATS_LE32(general, channel_beacons);
 683         PRINT_STATS_LE32(general, num_missed_bcon);
 684         PRINT_STATS_LE32(general, adc_rx_saturation_time);
 685         PRINT_STATS_LE32(general, ina_detection_search_time);
 686         PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 687         PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 688         PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 689         PRINT_STATS_LE32(general, interference_data_flag);
 690         PRINT_STATS_LE32(general, channel_load);
 691         PRINT_STATS_LE32(general, dsp_false_alarms);
 692         PRINT_STATS_LE32(general, beacon_rssi_a);
 693         PRINT_STATS_LE32(general, beacon_rssi_b);
 694         PRINT_STATS_LE32(general, beacon_rssi_c);
 695         PRINT_STATS_LE32(general, beacon_energy_a);
 696         PRINT_STATS_LE32(general, beacon_energy_b);
 697         PRINT_STATS_LE32(general, beacon_energy_c);
 698         PRINT_STATS_LE32(general, num_bt_kills);
 699         PRINT_STATS_LE32(general, mac_id);
 700         PRINT_STATS_LE32(general, directed_data_mpdu);
 701
 702         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 703                          "Statistics_Rx - HT");
 704         PRINT_STATS_LE32(ht, plcp_err);
 705         PRINT_STATS_LE32(ht, overrun_err);
 706         PRINT_STATS_LE32(ht, early_overrun_err);
 707         PRINT_STATS_LE32(ht, crc32_good);
 708         PRINT_STATS_LE32(ht, crc32_err);
 709         PRINT_STATS_LE32(ht, mh_format_err);
 710         PRINT_STATS_LE32(ht, agg_crc32_good);
 711         PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 712         PRINT_STATS_LE32(ht, agg_cnt);
 713         PRINT_STATS_LE32(ht, unsupport_mcs);
 714
 715         mutex_unlock(&mvm->mutex);
 716
 717         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 718         kfree(buf);
 719
 720         return ret;
 721 }
 722 #undef PRINT_STAT_LE32
 723
 724 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 725                                           char __user *user_buf, size_t count,
 726                                           loff_t *ppos,
 727                                           struct iwl_mvm_frame_stats *stats)
 728 {
 729         char *buff, *pos, *endpos;
 730         int idx, i;
 731         int ret;
 732         static const size_t bufsz = 1024;
 733
 734         buff = kmalloc(bufsz, GFP_KERNEL);
 735         if (!buff)
 736                 return -ENOMEM;
 737
 738         spin_lock_bh(&mvm->drv_stats_lock);
 739
 740         pos = buff;
 741         endpos = pos + bufsz;
 742
 743         pos += scnprintf(pos, endpos - pos,
 744                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 745                          stats->legacy_frames,
 746                          stats->ht_frames,
 747                          stats->vht_frames);
 748         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 749                          stats->bw_20_frames,
 750                          stats->bw_40_frames,
 751                          stats->bw_80_frames);
 752         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 753                          stats->ngi_frames,
 754                          stats->sgi_frames);
 755         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 756                          stats->siso_frames,
 757                          stats->mimo2_frames);
 758         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 759                          stats->fail_frames,
 760                          stats->success_frames);
 761         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 762                          stats->agg_frames);
 763         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 764                          stats->ampdu_count);
 765         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 766                          stats->ampdu_count > 0 ?
 767                          (stats->agg_frames / stats->ampdu_count) : 0);
 768
 769         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 770
 771         idx = stats->last_frame_idx - 1;
 772         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 773                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 774                 if (stats->last_rates[idx] == 0)
 775                         continue;
 776                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 777                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 778                 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
 779         }
 780         spin_unlock_bh(&mvm->drv_stats_lock);
 781
 782         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 783         kfree(buff);
 784
 785         return ret;
 786 }
 787
 788 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 789                                            char __user *user_buf, size_t count,
 790                                            loff_t *ppos)
 791 {
 792         struct iwl_mvm *mvm = file->private_data;
 793
 794         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 795                                           &mvm->drv_rx_stats);
 796 }
 797
 798 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 799                                           size_t count, loff_t *ppos)
 800 {
 801         int ret;
 802
 803         mutex_lock(&mvm->mutex);
 804
 805         /* allow one more restart that we're provoking here */
 806         if (mvm->restart_fw >= 0)
 807                 mvm->restart_fw++;
 808
 809         /* take the return value to make compiler happy - it will fail anyway */
 810         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
 811
 812         mutex_unlock(&mvm->mutex);
 813
 814         return count;
 815 }
 816
 817 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
 818                                       size_t count, loff_t *ppos)
 819 {
 820         int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
 821         if (ret)
 822                 return ret;
 823
 824         iwl_force_nmi(mvm->trans);
 825
 826         iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
 827
 828         return count;
 829 }
 830
 831 static ssize_t
 832 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
 833                                 char __user *user_buf,
 834                                 size_t count, loff_t *ppos)
 835 {
 836         struct iwl_mvm *mvm = file->private_data;
 837         int pos = 0;
 838         char buf[32];
 839         const size_t bufsz = sizeof(buf);
 840
 841         /* print which antennas were set for the scan command by the user */
 842         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
 843         if (mvm->scan_rx_ant & ANT_A)
 844                 pos += scnprintf(buf + pos, bufsz - pos, "A");
 845         if (mvm->scan_rx_ant & ANT_B)
 846                 pos += scnprintf(buf + pos, bufsz - pos, "B");
 847         if (mvm->scan_rx_ant & ANT_C)
 848                 pos += scnprintf(buf + pos, bufsz - pos, "C");
 849         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
 850
 851         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 852 }
 853
 854 static ssize_t
 855 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
 856                                  size_t count, loff_t *ppos)
 857 {
 858         u8 scan_rx_ant;
 859
 860         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
 861                 return -EINVAL;
 862         if (scan_rx_ant > ANT_ABC)
 863                 return -EINVAL;
 864         if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
 865                 return -EINVAL;
 866
 867         if (mvm->scan_rx_ant != scan_rx_ant) {
 868                 mvm->scan_rx_ant = scan_rx_ant;
 869                 if (fw_has_capa(&mvm->fw->ucode_capa,
 870                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
 871                         iwl_mvm_config_scan(mvm);
 872         }
 873
 874         return count;
 875 }
 876
 877 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
 878                                                char *buf, size_t count,
 879                                                loff_t *ppos)
 880 {
 881         struct iwl_rss_config_cmd cmd = {
 882                 .flags = cpu_to_le32(IWL_RSS_ENABLE),
 883                 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
 884                              IWL_RSS_HASH_TYPE_IPV4_UDP |
 885                              IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
 886                              IWL_RSS_HASH_TYPE_IPV6_TCP |
 887                              IWL_RSS_HASH_TYPE_IPV6_UDP |
 888                              IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
 889         };
 890         int ret, i, num_repeats, nbytes = count / 2;
 891
 892         ret = hex2bin(cmd.indirection_table, buf, nbytes);
 893         if (ret)
 894                 return ret;
 895
 896         /*
 897          * The input is the redirection table, partial or full.
 898          * Repeat the pattern if needed.
 899          * For example, input of 01020F will be repeated 42 times,
 900          * indirecting RSS hash results to queues 1, 2, 15 (skipping
 901          * queues 3 - 14).
 902          */
 903         num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
 904         for (i = 1; i < num_repeats; i++)
 905                 memcpy(&cmd.indirection_table[i * nbytes],
 906                        cmd.indirection_table, nbytes);
 907         /* handle cut in the middle pattern for the last places */
 908         memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
 909                ARRAY_SIZE(cmd.indirection_table) % nbytes);
 910
 911         netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
 912
 913         mutex_lock(&mvm->mutex);
 914         ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
 915         mutex_unlock(&mvm->mutex);
 916
 917         return ret ?: count;
 918 }
 919
 920 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
 921                                              char *buf, size_t count,
 922                                              loff_t *ppos)
 923 {
 924         struct iwl_rx_cmd_buffer rxb = {
 925                 ._rx_page_order = 0,
 926                 .truesize = 0, /* not used */
 927                 ._offset = 0,
 928         };
 929         struct iwl_rx_packet *pkt;
 930         struct iwl_rx_mpdu_desc *desc;
 931         int bin_len = count / 2;
 932         int ret = -EINVAL;
 933
 934         /* supporting only 9000 descriptor */
 935         if (!mvm->trans->cfg->mq_rx_supported)
 936                 return -ENOTSUPP;
 937
 938         rxb._page = alloc_pages(GFP_ATOMIC, 0);
 939         if (!rxb._page)
 940                 return -ENOMEM;
 941         pkt = rxb_addr(&rxb);
 942
 943         ret = hex2bin(page_address(rxb._page), buf, bin_len);
 944         if (ret)
 945                 goto out;
 946
 947         /* avoid invalid memory access */
 948         if (bin_len < sizeof(*pkt) + sizeof(*desc))
 949                 goto out;
 950
 951         /* check this is RX packet */
 952         if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) !=
 953             WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))
 954                 goto out;
 955
 956         /* check the length in metadata matches actual received length */
 957         desc = (void *)pkt->data;
 958         if (le16_to_cpu(desc->mpdu_len) !=
 959             (bin_len - sizeof(*desc) - sizeof(*pkt)))
 960                 goto out;
 961
 962         local_bh_disable();
 963         iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0);
 964         local_bh_enable();
 965         ret = 0;
 966
 967 out:
 968         iwl_free_rxb(&rxb);
 969
 970         return ret ?: count;
 971 }
 972
 973 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
 974                                           char __user *user_buf,
 975                                           size_t count, loff_t *ppos)
 976 {
 977         struct iwl_mvm *mvm = file->private_data;
 978         int conf;
 979         char buf[8];
 980         const size_t bufsz = sizeof(buf);
 981         int pos = 0;
 982
 983         mutex_lock(&mvm->mutex);
 984         conf = mvm->fw_dbg_conf;
 985         mutex_unlock(&mvm->mutex);
 986
 987         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
 988
 989         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 990 }
 991
 992 /*
 993  * Enable / Disable continuous recording.
 994  * Cause the FW to start continuous recording, by sending the relevant hcmd.
 995  * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING.
 996  * Disable: for 0 as input, DISABLE_CONT_RECORDING.
 997  */
 998 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm,
 999                                               char *buf, size_t count,
1000                                               loff_t *ppos)
1001 {
1002         struct iwl_trans *trans = mvm->trans;
1003         const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv;
1004         struct iwl_continuous_record_cmd cont_rec = {};
1005         int ret, rec_mode;
1006
1007         if (!dest)
1008                 return -EOPNOTSUPP;
1009
1010         if (dest->monitor_mode != SMEM_MODE ||
1011             trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
1012                 return -EOPNOTSUPP;
1013
1014         ret = kstrtoint(buf, 0, &rec_mode);
1015         if (ret)
1016                 return ret;
1017
1018         cont_rec.record_mode.enable_recording = rec_mode ?
1019                 cpu_to_le16(ENABLE_CONT_RECORDING) :
1020                 cpu_to_le16(DISABLE_CONT_RECORDING);
1021
1022         mutex_lock(&mvm->mutex);
1023         ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0,
1024                                    sizeof(cont_rec), &cont_rec);
1025         mutex_unlock(&mvm->mutex);
1026
1027         return ret ?: count;
1028 }
1029
1030 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1031                                            char *buf, size_t count,
1032                                            loff_t *ppos)
1033 {
1034         unsigned int conf_id;
1035         int ret;
1036
1037         ret = kstrtouint(buf, 0, &conf_id);
1038         if (ret)
1039                 return ret;
1040
1041         if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1042                 return -EINVAL;
1043
1044         mutex_lock(&mvm->mutex);
1045         ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
1046         mutex_unlock(&mvm->mutex);
1047
1048         return ret ?: count;
1049 }
1050
1051 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1052                                               char *buf, size_t count,
1053                                               loff_t *ppos)
1054 {
1055         int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1056
1057         if (ret)
1058                 return ret;
1059
1060         iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf,
1061                                (count - 1), NULL);
1062
1063         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1064
1065         return count;
1066 }
1067
1068 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
1069                                              char *buf, size_t count,
1070                                              loff_t *ppos)
1071 {
1072         unsigned int max_amsdu_len;
1073         int ret;
1074
1075         ret = kstrtouint(buf, 0, &max_amsdu_len);
1076         if (ret)
1077                 return ret;
1078
1079         if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
1080                 return -EINVAL;
1081         mvm->max_amsdu_len = max_amsdu_len;
1082
1083         return count;
1084 }
1085
1086 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1087 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1088 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1089                                             char __user *user_buf,
1090                                             size_t count, loff_t *ppos)
1091 {
1092         struct iwl_mvm *mvm = file->private_data;
1093         struct iwl_bcast_filter_cmd cmd;
1094         const struct iwl_fw_bcast_filter *filter;
1095         char *buf;
1096         int bufsz = 1024;
1097         int i, j, pos = 0;
1098         ssize_t ret;
1099
1100         buf = kzalloc(bufsz, GFP_KERNEL);
1101         if (!buf)
1102                 return -ENOMEM;
1103
1104         mutex_lock(&mvm->mutex);
1105         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1106                 ADD_TEXT("None\n");
1107                 mutex_unlock(&mvm->mutex);
1108                 goto out;
1109         }
1110         mutex_unlock(&mvm->mutex);
1111
1112         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1113                 filter = &cmd.filters[i];
1114
1115                 ADD_TEXT("Filter [%d]:\n", i);
1116                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1117                 ADD_TEXT("\tFrame Type: %s\n",
1118                          filter->frame_type ? "IPv4" : "Generic");
1119
1120                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1121                         const struct iwl_fw_bcast_filter_attr *attr;
1122
1123                         attr = &filter->attrs[j];
1124                         if (!attr->mask)
1125                                 break;
1126
1127                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1128                                  j, attr->offset,
1129                                  attr->offset_type ? "IP End" :
1130                                                      "Payload Start",
1131                                  be32_to_cpu(attr->mask),
1132                                  be32_to_cpu(attr->val),
1133                                  le16_to_cpu(attr->reserved1));
1134                 }
1135         }
1136 out:
1137         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1138         kfree(buf);
1139         return ret;
1140 }
1141
1142 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1143                                              size_t count, loff_t *ppos)
1144 {
1145         int pos, next_pos;
1146         struct iwl_fw_bcast_filter filter = {};
1147         struct iwl_bcast_filter_cmd cmd;
1148         u32 filter_id, attr_id, mask, value;
1149         int err = 0;
1150
1151         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1152                    &filter.frame_type, &pos) != 3)
1153                 return -EINVAL;
1154
1155         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1156             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1157                 return -EINVAL;
1158
1159         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1160              attr_id++) {
1161                 struct iwl_fw_bcast_filter_attr *attr =
1162                                 &filter.attrs[attr_id];
1163
1164                 if (pos >= count)
1165                         break;
1166
1167                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1168                            &attr->offset, &attr->offset_type,
1169                            &mask, &value, &next_pos) != 4)
1170                         return -EINVAL;
1171
1172                 attr->mask = cpu_to_be32(mask);
1173                 attr->val = cpu_to_be32(value);
1174                 if (mask)
1175                         filter.num_attrs++;
1176
1177                 pos += next_pos;
1178         }
1179
1180         mutex_lock(&mvm->mutex);
1181         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1182                &filter, sizeof(filter));
1183
1184         /* send updated bcast filtering configuration */
1185         if (mvm->dbgfs_bcast_filtering.override &&
1186             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1187                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1188                                            sizeof(cmd), &cmd);
1189         mutex_unlock(&mvm->mutex);
1190
1191         return err ?: count;
1192 }
1193
1194 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1195                                                  char __user *user_buf,
1196                                                  size_t count, loff_t *ppos)
1197 {
1198         struct iwl_mvm *mvm = file->private_data;
1199         struct iwl_bcast_filter_cmd cmd;
1200         char *buf;
1201         int bufsz = 1024;
1202         int i, pos = 0;
1203         ssize_t ret;
1204
1205         buf = kzalloc(bufsz, GFP_KERNEL);
1206         if (!buf)
1207                 return -ENOMEM;
1208
1209         mutex_lock(&mvm->mutex);
1210         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1211                 ADD_TEXT("None\n");
1212                 mutex_unlock(&mvm->mutex);
1213                 goto out;
1214         }
1215         mutex_unlock(&mvm->mutex);
1216
1217         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1218                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1219
1220                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1221                          i, mac->default_discard, mac->attached_filters);
1222         }
1223 out:
1224         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1225         kfree(buf);
1226         return ret;
1227 }
1228
1229 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1230                                                   char *buf, size_t count,
1231                                                   loff_t *ppos)
1232 {
1233         struct iwl_bcast_filter_cmd cmd;
1234         struct iwl_fw_bcast_mac mac = {};
1235         u32 mac_id, attached_filters;
1236         int err = 0;
1237
1238         if (!mvm->bcast_filters)
1239                 return -ENOENT;
1240
1241         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1242                    &attached_filters) != 3)
1243                 return -EINVAL;
1244
1245         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1246             mac.default_discard > 1 ||
1247             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1248                 return -EINVAL;
1249
1250         mac.attached_filters = cpu_to_le16(attached_filters);
1251
1252         mutex_lock(&mvm->mutex);
1253         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1254                &mac, sizeof(mac));
1255
1256         /* send updated bcast filtering configuration */
1257         if (mvm->dbgfs_bcast_filtering.override &&
1258             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1259                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1260                                            sizeof(cmd), &cmd);
1261         mutex_unlock(&mvm->mutex);
1262
1263         return err ?: count;
1264 }
1265 #endif
1266
1267 #ifdef CONFIG_PM_SLEEP
1268 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1269                                        size_t count, loff_t *ppos)
1270 {
1271         int store;
1272
1273         if (sscanf(buf, "%d", &store) != 1)
1274                 return -EINVAL;
1275
1276         mvm->store_d3_resume_sram = store;
1277
1278         return count;
1279 }
1280
1281 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1282                                       size_t count, loff_t *ppos)
1283 {
1284         struct iwl_mvm *mvm = file->private_data;
1285         const struct fw_img *img;
1286         int ofs, len, pos = 0;
1287         size_t bufsz, ret;
1288         char *buf;
1289         u8 *ptr = mvm->d3_resume_sram;
1290
1291         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1292         len = img->sec[IWL_UCODE_SECTION_DATA].len;
1293
1294         bufsz = len * 4 + 256;
1295         buf = kzalloc(bufsz, GFP_KERNEL);
1296         if (!buf)
1297                 return -ENOMEM;
1298
1299         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1300                          mvm->store_d3_resume_sram ? "en" : "dis");
1301
1302         if (ptr) {
1303                 for (ofs = 0; ofs < len; ofs += 16) {
1304                         pos += scnprintf(buf + pos, bufsz - pos,
1305                                          "0x%.4x %16ph\n", ofs, ptr + ofs);
1306                 }
1307         } else {
1308                 pos += scnprintf(buf + pos, bufsz - pos,
1309                                  "(no data captured)\n");
1310         }
1311
1312         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1313
1314         kfree(buf);
1315
1316         return ret;
1317 }
1318 #endif
1319
1320 #define PRINT_MVM_REF(ref) do {                                         \
1321         if (mvm->refs[ref])                                             \
1322                 pos += scnprintf(buf + pos, bufsz - pos,                \
1323                                  "\t(0x%lx): %d %s\n",                  \
1324                                  BIT(ref), mvm->refs[ref], #ref);       \
1325 } while (0)
1326
1327 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1328                                         char __user *user_buf,
1329                                         size_t count, loff_t *ppos)
1330 {
1331         struct iwl_mvm *mvm = file->private_data;
1332         int i, pos = 0;
1333         char buf[256];
1334         const size_t bufsz = sizeof(buf);
1335         u32 refs = 0;
1336
1337         for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1338                 if (mvm->refs[i])
1339                         refs |= BIT(i);
1340
1341         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1342                          refs);
1343
1344         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1345         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1346         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1347         PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1348         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1349         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1350         PRINT_MVM_REF(IWL_MVM_REF_USER);
1351         PRINT_MVM_REF(IWL_MVM_REF_TX);
1352         PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1353         PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1354         PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1355         PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1356         PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1357         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1358         PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1359         PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1360         PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1361         PRINT_MVM_REF(IWL_MVM_REF_NMI);
1362         PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1363         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1364         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1365         PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1366         PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1367         PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD);
1368         PRINT_MVM_REF(IWL_MVM_REF_RX);
1369
1370         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1371 }
1372
1373 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1374                                          size_t count, loff_t *ppos)
1375 {
1376         unsigned long value;
1377         int ret;
1378         bool taken;
1379
1380         ret = kstrtoul(buf, 10, &value);
1381         if (ret < 0)
1382                 return ret;
1383
1384         mutex_lock(&mvm->mutex);
1385
1386         taken = mvm->refs[IWL_MVM_REF_USER];
1387         if (value == 1 && !taken)
1388                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1389         else if (value == 0 && taken)
1390                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1391         else
1392                 ret = -EINVAL;
1393
1394         mutex_unlock(&mvm->mutex);
1395
1396         if (ret < 0)
1397                 return ret;
1398         return count;
1399 }
1400
1401 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1402         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1403 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1404         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1405 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1406                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1407                                          &iwl_dbgfs_##name##_ops))      \
1408                         goto err;                                       \
1409         } while (0)
1410 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1411         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1412
1413 static ssize_t
1414 iwl_dbgfs_prph_reg_read(struct file *file,
1415                         char __user *user_buf,
1416                         size_t count, loff_t *ppos)
1417 {
1418         struct iwl_mvm *mvm = file->private_data;
1419         int pos = 0;
1420         char buf[32];
1421         const size_t bufsz = sizeof(buf);
1422         int ret;
1423
1424         if (!mvm->dbgfs_prph_reg_addr)
1425                 return -EINVAL;
1426
1427         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1428         if (ret)
1429                 return ret;
1430
1431         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1432                 mvm->dbgfs_prph_reg_addr,
1433                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1434
1435         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1436
1437         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1438 }
1439
1440 static ssize_t
1441 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1442                          size_t count, loff_t *ppos)
1443 {
1444         u8 args;
1445         u32 value;
1446         int ret;
1447
1448         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1449         /* if we only want to set the reg address - nothing more to do */
1450         if (args == 1)
1451                 goto out;
1452
1453         /* otherwise, make sure we have both address and value */
1454         if (args != 2)
1455                 return -EINVAL;
1456
1457         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1458         if (ret)
1459                 return ret;
1460
1461         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1462
1463         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1464 out:
1465         return count;
1466 }
1467
1468 static ssize_t
1469 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1470                               size_t count, loff_t *ppos)
1471 {
1472         int ret;
1473
1474         mutex_lock(&mvm->mutex);
1475         ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1476         mutex_unlock(&mvm->mutex);
1477
1478         return ret ?: count;
1479 }
1480
1481 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1482
1483 /* Device wide debugfs entries */
1484 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1485 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1486 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1487 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1488 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1489 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1490 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1491 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1492 MVM_DEBUGFS_READ_FILE_OPS(stations);
1493 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1494 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1495 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1496 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1497 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1498 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1499 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1500 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1501 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1502 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1503 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1504 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1505 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1506 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8);
1507 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8);
1508 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1509                            (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1510 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1511
1512 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1513 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1514 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1515 #endif
1516
1517 #ifdef CONFIG_PM_SLEEP
1518 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1519 #endif
1520
1521 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1522                                   size_t count, loff_t *ppos)
1523 {
1524         struct iwl_mvm *mvm = file->private_data;
1525         struct iwl_dbg_mem_access_cmd cmd = {};
1526         struct iwl_dbg_mem_access_rsp *rsp;
1527         struct iwl_host_cmd hcmd = {
1528                 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1529                 .data = { &cmd, },
1530                 .len = { sizeof(cmd) },
1531         };
1532         size_t delta, len;
1533         ssize_t ret;
1534
1535         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1536                              DEBUG_GROUP, 0);
1537         cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1538
1539         /* Take care of alignment of both the position and the length */
1540         delta = *ppos & 0x3;
1541         cmd.addr = cpu_to_le32(*ppos - delta);
1542         cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1543                                   (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1544
1545         mutex_lock(&mvm->mutex);
1546         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1547         mutex_unlock(&mvm->mutex);
1548
1549         if (ret < 0)
1550                 return ret;
1551
1552         rsp = (void *)hcmd.resp_pkt->data;
1553         if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1554                 ret = -ENXIO;
1555                 goto out;
1556         }
1557
1558         len = min((size_t)le32_to_cpu(rsp->len) << 2,
1559                   iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1560         len = min(len - delta, count);
1561         if (len < 0) {
1562                 ret = -EFAULT;
1563                 goto out;
1564         }
1565
1566         ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len);
1567         *ppos += ret;
1568
1569 out:
1570         iwl_free_resp(&hcmd);
1571         return ret;
1572 }
1573
1574 static ssize_t iwl_dbgfs_mem_write(struct file *file,
1575                                    const char __user *user_buf, size_t count,
1576                                    loff_t *ppos)
1577 {
1578         struct iwl_mvm *mvm = file->private_data;
1579         struct iwl_dbg_mem_access_cmd *cmd;
1580         struct iwl_dbg_mem_access_rsp *rsp;
1581         struct iwl_host_cmd hcmd = {};
1582         size_t cmd_size;
1583         size_t data_size;
1584         u32 op, len;
1585         ssize_t ret;
1586
1587         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1588                              DEBUG_GROUP, 0);
1589
1590         if (*ppos & 0x3 || count < 4) {
1591                 op = DEBUG_MEM_OP_WRITE_BYTES;
1592                 len = min(count, (size_t)(4 - (*ppos & 0x3)));
1593                 data_size = len;
1594         } else {
1595                 op = DEBUG_MEM_OP_WRITE;
1596                 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1597                 data_size = len << 2;
1598         }
1599
1600         cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1601         cmd = kzalloc(cmd_size, GFP_KERNEL);
1602         if (!cmd)
1603                 return -ENOMEM;
1604
1605         cmd->op = cpu_to_le32(op);
1606         cmd->len = cpu_to_le32(len);
1607         cmd->addr = cpu_to_le32(*ppos);
1608         if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1609                 kfree(cmd);
1610                 return -EFAULT;
1611         }
1612
1613         hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1614         hcmd.data[0] = (void *)cmd;
1615         hcmd.len[0] = cmd_size;
1616
1617         mutex_lock(&mvm->mutex);
1618         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1619         mutex_unlock(&mvm->mutex);
1620
1621         kfree(cmd);
1622
1623         if (ret < 0)
1624                 return ret;
1625
1626         rsp = (void *)hcmd.resp_pkt->data;
1627         if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1628                 ret = -ENXIO;
1629                 goto out;
1630         }
1631
1632         ret = data_size;
1633         *ppos += ret;
1634
1635 out:
1636         iwl_free_resp(&hcmd);
1637         return ret;
1638 }
1639
1640 static const struct file_operations iwl_dbgfs_mem_ops = {
1641         .read = iwl_dbgfs_mem_read,
1642         .write = iwl_dbgfs_mem_write,
1643         .open = simple_open,
1644         .llseek = default_llseek,
1645 };
1646
1647 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1648 {
1649         struct dentry *bcast_dir __maybe_unused;
1650         char buf[100];
1651
1652         spin_lock_init(&mvm->drv_stats_lock);
1653
1654         mvm->debugfs_dir = dbgfs_dir;
1655
1656         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1657         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1658         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1659         MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1660                              S_IWUSR | S_IRUSR);
1661         MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1662         MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR);
1663         MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR);
1664         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1665         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1666         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1667         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1668                              S_IRUSR | S_IWUSR);
1669         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1670         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1671         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1672         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1673         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1674         MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1675         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1676                              S_IWUSR | S_IRUSR);
1677         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1678         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1679         MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1680         MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1681         MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR);
1682         MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1683         MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
1684         MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR);
1685         MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR);
1686         if (!debugfs_create_bool("enable_scan_iteration_notif",
1687                                  S_IRUSR | S_IWUSR,
1688                                  mvm->debugfs_dir,
1689                                  &mvm->scan_iter_notif_enabled))
1690                 goto err;
1691         if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR,
1692                                  mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
1693                 goto err;
1694
1695 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1696         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1697                 bcast_dir = debugfs_create_dir("bcast_filtering",
1698                                                mvm->debugfs_dir);
1699                 if (!bcast_dir)
1700                         goto err;
1701
1702                 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1703                                 bcast_dir,
1704                                 &mvm->dbgfs_bcast_filtering.override))
1705                         goto err;
1706
1707                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1708                                            bcast_dir, S_IWUSR | S_IRUSR);
1709                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1710                                            bcast_dir, S_IWUSR | S_IRUSR);
1711         }
1712 #endif
1713
1714 #ifdef CONFIG_PM_SLEEP
1715         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1716         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1717         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1718                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1719                 goto err;
1720         if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1721                                 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1722                 goto err;
1723 #endif
1724
1725         if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1726                                mvm->debugfs_dir, &mvm->ps_disabled))
1727                 goto err;
1728         if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1729                                   mvm->debugfs_dir, &mvm->nvm_hw_blob))
1730                 goto err;
1731         if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1732                                   mvm->debugfs_dir, &mvm->nvm_sw_blob))
1733                 goto err;
1734         if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1735                                   mvm->debugfs_dir, &mvm->nvm_calib_blob))
1736                 goto err;
1737         if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1738                                   mvm->debugfs_dir, &mvm->nvm_prod_blob))
1739                 goto err;
1740         if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1741                                  mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1742                 goto err;
1743
1744         debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm,
1745                             &iwl_dbgfs_mem_ops);
1746
1747         /*
1748          * Create a symlink with mac80211. It will be removed when mac80211
1749          * exists (before the opmode exists which removes the target.)
1750          */
1751         snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
1752         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1753                 goto err;
1754
1755         return 0;
1756 err:
1757         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1758         return -ENOMEM;
1759 }