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 - 2017 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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  41  * modification, are permitted provided that the following conditions
  42  * are met:
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  45  *    notice, this list of conditions and the following disclaimer.
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  49  *    distribution.
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  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/vmalloc.h>
  68 #include <linux/ieee80211.h>
  69 #include <linux/netdevice.h>
  70
  71 #include "mvm.h"
  72 #include "sta.h"
  73 #include "iwl-io.h"
  74 #include "debugfs.h"
  75 #include "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 (!iwl_mvm_is_ctdp_supported(mvm))
  86                 return -EOPNOTSUPP;
  87
  88         if (!iwl_mvm_firmware_running(mvm) ||
  89             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
  90                 return -EIO;
  91
  92         mutex_lock(&mvm->mutex);
  93         budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
  94         mutex_unlock(&mvm->mutex);
  95
  96         if (budget < 0)
  97                 return budget;
  98
  99         pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
 100
 101         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 102 }
 103
 104 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
 105                                          size_t count, loff_t *ppos)
 106 {
 107         int ret;
 108
 109         if (!iwl_mvm_is_ctdp_supported(mvm))
 110                 return -EOPNOTSUPP;
 111
 112         if (!iwl_mvm_firmware_running(mvm) ||
 113             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 114                 return -EIO;
 115
 116         mutex_lock(&mvm->mutex);
 117         ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
 118         mutex_unlock(&mvm->mutex);
 119
 120         return ret ?: count;
 121 }
 122
 123 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
 124                                             size_t count, loff_t *ppos)
 125 {
 126         if (!iwl_mvm_firmware_running(mvm) ||
 127             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 128                 return -EIO;
 129
 130         iwl_mvm_enter_ctkill(mvm);
 131
 132         return count;
 133 }
 134
 135 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
 136                                         size_t count, loff_t *ppos)
 137 {
 138         int ret;
 139         u32 flush_arg;
 140
 141         if (!iwl_mvm_firmware_running(mvm) ||
 142             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 143                 return -EIO;
 144
 145         if (kstrtou32(buf, 0, &flush_arg))
 146                 return -EINVAL;
 147
 148         if (iwl_mvm_has_new_tx_api(mvm)) {
 149                 IWL_DEBUG_TX_QUEUES(mvm,
 150                                     "FLUSHING all tids queues on sta_id = %d\n",
 151                                     flush_arg);
 152                 mutex_lock(&mvm->mutex);
 153                 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFF, 0) ? : count;
 154                 mutex_unlock(&mvm->mutex);
 155                 return ret;
 156         }
 157
 158         IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
 159                             flush_arg);
 160
 161         mutex_lock(&mvm->mutex);
 162         ret =  iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count;
 163         mutex_unlock(&mvm->mutex);
 164
 165         return ret;
 166 }
 167
 168 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
 169                                          size_t count, loff_t *ppos)
 170 {
 171         struct iwl_mvm_sta *mvmsta;
 172         int sta_id, drain, ret;
 173
 174         if (!iwl_mvm_firmware_running(mvm) ||
 175             mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
 176                 return -EIO;
 177
 178         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 179                 return -EINVAL;
 180         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 181                 return -EINVAL;
 182         if (drain < 0 || drain > 1)
 183                 return -EINVAL;
 184
 185         mutex_lock(&mvm->mutex);
 186
 187         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 188
 189         if (!mvmsta)
 190                 ret = -ENOENT;
 191         else
 192                 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
 193
 194         mutex_unlock(&mvm->mutex);
 195
 196         return ret;
 197 }
 198
 199 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 200                                    size_t count, loff_t *ppos)
 201 {
 202         struct iwl_mvm *mvm = file->private_data;
 203         const struct fw_img *img;
 204         unsigned int ofs, len;
 205         size_t ret;
 206         u8 *ptr;
 207
 208         if (!iwl_mvm_firmware_running(mvm))
 209                 return -EINVAL;
 210
 211         /* default is to dump the entire data segment */
 212         img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
 213         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 214         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 215
 216         if (mvm->dbgfs_sram_len) {
 217                 ofs = mvm->dbgfs_sram_offset;
 218                 len = mvm->dbgfs_sram_len;
 219         }
 220
 221         ptr = kzalloc(len, GFP_KERNEL);
 222         if (!ptr)
 223                 return -ENOMEM;
 224
 225         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 226
 227         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 228
 229         kfree(ptr);
 230
 231         return ret;
 232 }
 233
 234 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 235                                     size_t count, loff_t *ppos)
 236 {
 237         const struct fw_img *img;
 238         u32 offset, len;
 239         u32 img_offset, img_len;
 240
 241         if (!iwl_mvm_firmware_running(mvm))
 242                 return -EINVAL;
 243
 244         img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
 245         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 246         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 247
 248         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 249                 if ((offset & 0x3) || (len & 0x3))
 250                         return -EINVAL;
 251
 252                 if (offset + len > img_offset + img_len)
 253                         return -EINVAL;
 254
 255                 mvm->dbgfs_sram_offset = offset;
 256                 mvm->dbgfs_sram_len = len;
 257         } else {
 258                 mvm->dbgfs_sram_offset = 0;
 259                 mvm->dbgfs_sram_len = 0;
 260         }
 261
 262         return count;
 263 }
 264
 265 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
 266                                                   char __user *user_buf,
 267                                                   size_t count, loff_t *ppos)
 268 {
 269         struct iwl_mvm *mvm = file->private_data;
 270         char buf[16];
 271         int pos;
 272
 273         if (!mvm->temperature_test)
 274                 pos = scnprintf(buf , sizeof(buf), "disabled\n");
 275         else
 276                 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
 277
 278         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 279 }
 280
 281 /*
 282  * Set NIC Temperature
 283  * Cause the driver to ignore the actual NIC temperature reported by the FW
 284  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
 285  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
 286  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
 287  */
 288 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
 289                                                    char *buf, size_t count,
 290                                                    loff_t *ppos)
 291 {
 292         int temperature;
 293
 294         if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
 295                 return -EIO;
 296
 297         if (kstrtoint(buf, 10, &temperature))
 298                 return -EINVAL;
 299         /* not a legal temperature */
 300         if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
 301              temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
 302             temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
 303                 return -EINVAL;
 304
 305         mutex_lock(&mvm->mutex);
 306         if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
 307                 if (!mvm->temperature_test)
 308                         goto out;
 309
 310                 mvm->temperature_test = false;
 311                 /* Since we can't read the temp while awake, just set
 312                  * it to zero until we get the next RX stats from the
 313                  * firmware.
 314                  */
 315                 mvm->temperature = 0;
 316         } else {
 317                 mvm->temperature_test = true;
 318                 mvm->temperature = temperature;
 319         }
 320         IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
 321                        mvm->temperature_test ? "En" : "Dis" ,
 322                        mvm->temperature);
 323         /* handle the temperature change */
 324         iwl_mvm_tt_handler(mvm);
 325
 326 out:
 327         mutex_unlock(&mvm->mutex);
 328
 329         return count;
 330 }
 331
 332 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
 333                                        char __user *user_buf,
 334                                        size_t count, loff_t *ppos)
 335 {
 336         struct iwl_mvm *mvm = file->private_data;
 337         char buf[16];
 338         int pos, ret;
 339         s32 temp;
 340
 341         if (!iwl_mvm_firmware_running(mvm))
 342                 return -EIO;
 343
 344         mutex_lock(&mvm->mutex);
 345         ret = iwl_mvm_get_temp(mvm, &temp);
 346         mutex_unlock(&mvm->mutex);
 347
 348         if (ret)
 349                 return -EIO;
 350
 351         pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
 352
 353         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 354 }
 355
 356 #ifdef CONFIG_ACPI
 357 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
 358                                               char __user *user_buf,
 359                                               size_t count, loff_t *ppos)
 360 {
 361         struct iwl_mvm *mvm = file->private_data;
 362         char buf[256];
 363         int pos = 0;
 364         int bufsz = sizeof(buf);
 365         int tbl_idx;
 366         u8 *value;
 367
 368         if (!iwl_mvm_firmware_running(mvm))
 369                 return -EIO;
 370
 371         mutex_lock(&mvm->mutex);
 372         tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
 373         if (tbl_idx < 0) {
 374                 mutex_unlock(&mvm->mutex);
 375                 return tbl_idx;
 376         }
 377
 378         if (!tbl_idx) {
 379                 pos = scnprintf(buf, bufsz,
 380                                 "SAR geographic profile disabled\n");
 381         } else {
 382                 value = &mvm->geo_profiles[tbl_idx - 1].values[0];
 383
 384                 pos += scnprintf(buf + pos, bufsz - pos,
 385                                  "Use geographic profile %d\n", tbl_idx);
 386                 pos += scnprintf(buf + pos, bufsz - pos,
 387                                  "2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
 388                                  value[1], value[2], value[0]);
 389                 pos += scnprintf(buf + pos, bufsz - pos,
 390                                  "5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
 391                                  value[4], value[5], value[3]);
 392         }
 393         mutex_unlock(&mvm->mutex);
 394
 395         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 396 }
 397 #endif
 398
 399 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 400                                        size_t count, loff_t *ppos)
 401 {
 402         struct iwl_mvm *mvm = file->private_data;
 403         struct ieee80211_sta *sta;
 404         char buf[400];
 405         int i, pos = 0, bufsz = sizeof(buf);
 406
 407         mutex_lock(&mvm->mutex);
 408
 409         for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
 410                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 411                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 412                                                 lockdep_is_held(&mvm->mutex));
 413                 if (!sta)
 414                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 415                 else if (IS_ERR(sta))
 416                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 417                                          PTR_ERR(sta));
 418                 else
 419                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 420                                          sta->addr);
 421         }
 422
 423         mutex_unlock(&mvm->mutex);
 424
 425         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 426 }
 427
 428 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
 429                                       size_t count, loff_t *ppos)
 430 {
 431         struct ieee80211_sta *sta = file->private_data;
 432         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 433         struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
 434         struct iwl_mvm *mvm = lq_sta->pers.drv;
 435         static const size_t bufsz = 2048;
 436         char *buff;
 437         int desc = 0;
 438         ssize_t ret;
 439
 440         buff = kmalloc(bufsz, GFP_KERNEL);
 441         if (!buff)
 442                 return -ENOMEM;
 443
 444         mutex_lock(&mvm->mutex);
 445
 446         desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
 447                           lq_sta->pers.sta_id);
 448         desc += scnprintf(buff + desc, bufsz - desc,
 449                           "fixed rate 0x%X\n",
 450                           lq_sta->pers.dbg_fixed_rate);
 451         desc += scnprintf(buff + desc, bufsz - desc,
 452                           "A-MPDU size limit %d\n",
 453                           lq_sta->pers.dbg_agg_frame_count_lim);
 454         desc += scnprintf(buff + desc, bufsz - desc,
 455                           "valid_tx_ant %s%s%s\n",
 456                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
 457                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "",
 458                 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : "");
 459         desc += scnprintf(buff + desc, bufsz - desc,
 460                           "last tx rate=0x%X ",
 461                           lq_sta->last_rate_n_flags);
 462
 463         desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
 464                                      lq_sta->last_rate_n_flags);
 465         mutex_unlock(&mvm->mutex);
 466
 467         ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
 468         kfree(buff);
 469         return ret;
 470 }
 471
 472 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 473                                                 char __user *user_buf,
 474                                                 size_t count, loff_t *ppos)
 475 {
 476         struct iwl_mvm *mvm = file->private_data;
 477         char buf[64];
 478         int bufsz = sizeof(buf);
 479         int pos = 0;
 480
 481         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 482                          mvm->disable_power_off);
 483         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 484                          mvm->disable_power_off_d3);
 485
 486         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 487 }
 488
 489 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 490                                                  size_t count, loff_t *ppos)
 491 {
 492         int ret, val;
 493
 494         if (!iwl_mvm_firmware_running(mvm))
 495                 return -EIO;
 496
 497         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 498                 if (sscanf(buf + 21, "%d", &val) != 1)
 499                         return -EINVAL;
 500                 mvm->disable_power_off = val;
 501         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 502                 if (sscanf(buf + 21, "%d", &val) != 1)
 503                         return -EINVAL;
 504                 mvm->disable_power_off_d3 = val;
 505         } else {
 506                 return -EINVAL;
 507         }
 508
 509         mutex_lock(&mvm->mutex);
 510         ret = iwl_mvm_power_update_device(mvm);
 511         mutex_unlock(&mvm->mutex);
 512
 513         return ret ?: count;
 514 }
 515
 516 static
 517 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
 518                            int pos, int bufsz)
 519 {
 520         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 521
 522         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 523         BT_MBOX_PRINT(0, LE_PROF1, false);
 524         BT_MBOX_PRINT(0, LE_PROF2, false);
 525         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 526         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 527         BT_MBOX_PRINT(0, INBAND_S, false);
 528         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 529         BT_MBOX_PRINT(0, LE_SCAN, false);
 530         BT_MBOX_PRINT(0, LE_ADV, false);
 531         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 532         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 533
 534         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 535
 536         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 537         BT_MBOX_PRINT(1, IP_SR, false);
 538         BT_MBOX_PRINT(1, LE_MSTR, false);
 539         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 540         BT_MBOX_PRINT(1, MSG_TYPE, false);
 541         BT_MBOX_PRINT(1, SSN, true);
 542
 543         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 544
 545         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 546         BT_MBOX_PRINT(2, PAG, false);
 547         BT_MBOX_PRINT(2, INQUIRY, false);
 548         BT_MBOX_PRINT(2, CONN, false);
 549         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 550         BT_MBOX_PRINT(2, DISC, false);
 551         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 552         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 553         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 554         BT_MBOX_PRINT(2, SCO_DURATION, true);
 555
 556         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 557
 558         BT_MBOX_PRINT(3, SCO_STATE, false);
 559         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 560         BT_MBOX_PRINT(3, A2DP_STATE, false);
 561         BT_MBOX_PRINT(3, A2DP_SRC, false);
 562         BT_MBOX_PRINT(3, ACL_STATE, false);
 563         BT_MBOX_PRINT(3, MSTR_STATE, false);
 564         BT_MBOX_PRINT(3, OBX_STATE, false);
 565         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 566         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 567         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 568         BT_MBOX_PRINT(3, INBAND_P, false);
 569         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 570         BT_MBOX_PRINT(3, SSN_2, false);
 571         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 572
 573         return pos;
 574 }
 575
 576 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 577                                        size_t count, loff_t *ppos)
 578 {
 579         struct iwl_mvm *mvm = file->private_data;
 580         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 581         char *buf;
 582         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 583
 584         buf = kmalloc(bufsz, GFP_KERNEL);
 585         if (!buf)
 586                 return -ENOMEM;
 587
 588         mutex_lock(&mvm->mutex);
 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, "bt_rrc = %d\n",
 602                          notif->rrc_status & 0xF);
 603         pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
 604                          notif->ttc_status & 0xF);
 605
 606         pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
 607                          IWL_MVM_BT_COEX_SYNC2SCO);
 608         pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
 609                          IWL_MVM_BT_COEX_MPLUT);
 610
 611         mutex_unlock(&mvm->mutex);
 612
 613         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 614         kfree(buf);
 615
 616         return ret;
 617 }
 618 #undef BT_MBOX_PRINT
 619
 620 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 621                                      size_t count, loff_t *ppos)
 622 {
 623         struct iwl_mvm *mvm = file->private_data;
 624         struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 625         char buf[256];
 626         int bufsz = sizeof(buf);
 627         int pos = 0;
 628
 629         mutex_lock(&mvm->mutex);
 630
 631         pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
 632         pos += scnprintf(buf + pos, bufsz - pos,
 633                          "\tPrimary Channel Bitmap 0x%016llx\n",
 634                          le64_to_cpu(cmd->bt_primary_ci));
 635         pos += scnprintf(buf + pos, bufsz - pos,
 636                          "\tSecondary Channel Bitmap 0x%016llx\n",
 637                          le64_to_cpu(cmd->bt_secondary_ci));
 638
 639         mutex_unlock(&mvm->mutex);
 640
 641         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 642 }
 643
 644 static ssize_t
 645 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 646                            size_t count, loff_t *ppos)
 647 {
 648         u32 bt_tx_prio;
 649
 650         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 651                 return -EINVAL;
 652         if (bt_tx_prio > 4)
 653                 return -EINVAL;
 654
 655         mvm->bt_tx_prio = bt_tx_prio;
 656
 657         return count;
 658 }
 659
 660 static ssize_t
 661 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
 662                              size_t count, loff_t *ppos)
 663 {
 664         static const char * const modes_str[BT_FORCE_ANT_MAX] = {
 665                 [BT_FORCE_ANT_DIS] = "dis",
 666                 [BT_FORCE_ANT_AUTO] = "auto",
 667                 [BT_FORCE_ANT_BT] = "bt",
 668                 [BT_FORCE_ANT_WIFI] = "wifi",
 669         };
 670         int ret, bt_force_ant_mode;
 671
 672         for (bt_force_ant_mode = 0;
 673              bt_force_ant_mode < ARRAY_SIZE(modes_str);
 674              bt_force_ant_mode++) {
 675                 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
 676                         break;
 677         }
 678
 679         if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
 680                 return -EINVAL;
 681
 682         ret = 0;
 683         mutex_lock(&mvm->mutex);
 684         if (mvm->bt_force_ant_mode == bt_force_ant_mode)
 685                 goto out;
 686
 687         mvm->bt_force_ant_mode = bt_force_ant_mode;
 688         IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
 689                        modes_str[mvm->bt_force_ant_mode]);
 690
 691         if (iwl_mvm_firmware_running(mvm))
 692                 ret = iwl_mvm_send_bt_init_conf(mvm);
 693         else
 694                 ret = 0;
 695
 696 out:
 697         mutex_unlock(&mvm->mutex);
 698         return ret ?: count;
 699 }
 700
 701 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
 702                                      size_t count, loff_t *ppos)
 703 {
 704         struct iwl_mvm *mvm = file->private_data;
 705         char *buff, *pos, *endpos;
 706         static const size_t bufsz = 1024;
 707         int ret;
 708
 709         buff = kmalloc(bufsz, GFP_KERNEL);
 710         if (!buff)
 711                 return -ENOMEM;
 712
 713         pos = buff;
 714         endpos = pos + bufsz;
 715
 716         pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
 717                          mvm->trans->cfg->fw_name_pre);
 718         pos += scnprintf(pos, endpos - pos, "FW: %s\n",
 719                          mvm->fwrt.fw->human_readable);
 720         pos += scnprintf(pos, endpos - pos, "Device: %s\n",
 721                          mvm->fwrt.trans->cfg->name);
 722         pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
 723                          mvm->fwrt.dev->bus->name);
 724
 725         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 726         kfree(buff);
 727
 728         return ret;
 729 }
 730
 731 #define PRINT_STATS_LE32(_struct, _memb)                                \
 732                          pos += scnprintf(buf + pos, bufsz - pos,       \
 733                                           fmt_table, #_memb,            \
 734                                           le32_to_cpu(_struct->_memb))
 735
 736 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 737                                           char __user *user_buf, size_t count,
 738                                           loff_t *ppos)
 739 {
 740         struct iwl_mvm *mvm = file->private_data;
 741         static const char *fmt_table = "\t%-30s %10u\n";
 742         static const char *fmt_header = "%-32s\n";
 743         int pos = 0;
 744         char *buf;
 745         int ret;
 746         size_t bufsz;
 747
 748         if (iwl_mvm_has_new_rx_stats_api(mvm))
 749                 bufsz = ((sizeof(struct mvm_statistics_rx) /
 750                           sizeof(__le32)) * 43) + (4 * 33) + 1;
 751         else
 752                 /* 43 = size of each data line; 33 = size of each header */
 753                 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
 754                           sizeof(__le32)) * 43) + (4 * 33) + 1;
 755
 756         buf = kzalloc(bufsz, GFP_KERNEL);
 757         if (!buf)
 758                 return -ENOMEM;
 759
 760         mutex_lock(&mvm->mutex);
 761
 762         if (iwl_mvm_firmware_running(mvm))
 763                 iwl_mvm_request_statistics(mvm, false);
 764
 765         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 766                          "Statistics_Rx - OFDM");
 767         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 768                 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
 769
 770                 PRINT_STATS_LE32(ofdm, ina_cnt);
 771                 PRINT_STATS_LE32(ofdm, fina_cnt);
 772                 PRINT_STATS_LE32(ofdm, plcp_err);
 773                 PRINT_STATS_LE32(ofdm, crc32_err);
 774                 PRINT_STATS_LE32(ofdm, overrun_err);
 775                 PRINT_STATS_LE32(ofdm, early_overrun_err);
 776                 PRINT_STATS_LE32(ofdm, crc32_good);
 777                 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
 778                 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
 779                 PRINT_STATS_LE32(ofdm, sfd_timeout);
 780                 PRINT_STATS_LE32(ofdm, fina_timeout);
 781                 PRINT_STATS_LE32(ofdm, unresponded_rts);
 782                 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 783                 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
 784                 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
 785                 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 786                 PRINT_STATS_LE32(ofdm, dsp_self_kill);
 787                 PRINT_STATS_LE32(ofdm, mh_format_err);
 788                 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
 789                 PRINT_STATS_LE32(ofdm, reserved);
 790         } else {
 791                 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
 792
 793                 PRINT_STATS_LE32(ofdm, unresponded_rts);
 794                 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
 795                 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
 796                 PRINT_STATS_LE32(ofdm, dsp_self_kill);
 797                 PRINT_STATS_LE32(ofdm, reserved);
 798         }
 799
 800         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 801                          "Statistics_Rx - CCK");
 802         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 803                 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
 804
 805                 PRINT_STATS_LE32(cck, ina_cnt);
 806                 PRINT_STATS_LE32(cck, fina_cnt);
 807                 PRINT_STATS_LE32(cck, plcp_err);
 808                 PRINT_STATS_LE32(cck, crc32_err);
 809                 PRINT_STATS_LE32(cck, overrun_err);
 810                 PRINT_STATS_LE32(cck, early_overrun_err);
 811                 PRINT_STATS_LE32(cck, crc32_good);
 812                 PRINT_STATS_LE32(cck, false_alarm_cnt);
 813                 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
 814                 PRINT_STATS_LE32(cck, sfd_timeout);
 815                 PRINT_STATS_LE32(cck, fina_timeout);
 816                 PRINT_STATS_LE32(cck, unresponded_rts);
 817                 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 818                 PRINT_STATS_LE32(cck, sent_ack_cnt);
 819                 PRINT_STATS_LE32(cck, sent_cts_cnt);
 820                 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 821                 PRINT_STATS_LE32(cck, dsp_self_kill);
 822                 PRINT_STATS_LE32(cck, mh_format_err);
 823                 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
 824                 PRINT_STATS_LE32(cck, reserved);
 825         } else {
 826                 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
 827
 828                 PRINT_STATS_LE32(cck, unresponded_rts);
 829                 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
 830                 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
 831                 PRINT_STATS_LE32(cck, dsp_self_kill);
 832                 PRINT_STATS_LE32(cck, reserved);
 833         }
 834
 835         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 836                          "Statistics_Rx - GENERAL");
 837         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 838                 struct mvm_statistics_rx_non_phy_v3 *general =
 839                         &mvm->rx_stats_v3.general;
 840
 841                 PRINT_STATS_LE32(general, bogus_cts);
 842                 PRINT_STATS_LE32(general, bogus_ack);
 843                 PRINT_STATS_LE32(general, non_bssid_frames);
 844                 PRINT_STATS_LE32(general, filtered_frames);
 845                 PRINT_STATS_LE32(general, non_channel_beacons);
 846                 PRINT_STATS_LE32(general, channel_beacons);
 847                 PRINT_STATS_LE32(general, num_missed_bcon);
 848                 PRINT_STATS_LE32(general, adc_rx_saturation_time);
 849                 PRINT_STATS_LE32(general, ina_detection_search_time);
 850                 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 851                 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 852                 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 853                 PRINT_STATS_LE32(general, interference_data_flag);
 854                 PRINT_STATS_LE32(general, channel_load);
 855                 PRINT_STATS_LE32(general, dsp_false_alarms);
 856                 PRINT_STATS_LE32(general, beacon_rssi_a);
 857                 PRINT_STATS_LE32(general, beacon_rssi_b);
 858                 PRINT_STATS_LE32(general, beacon_rssi_c);
 859                 PRINT_STATS_LE32(general, beacon_energy_a);
 860                 PRINT_STATS_LE32(general, beacon_energy_b);
 861                 PRINT_STATS_LE32(general, beacon_energy_c);
 862                 PRINT_STATS_LE32(general, num_bt_kills);
 863                 PRINT_STATS_LE32(general, mac_id);
 864                 PRINT_STATS_LE32(general, directed_data_mpdu);
 865         } else {
 866                 struct mvm_statistics_rx_non_phy *general =
 867                         &mvm->rx_stats.general;
 868
 869                 PRINT_STATS_LE32(general, bogus_cts);
 870                 PRINT_STATS_LE32(general, bogus_ack);
 871                 PRINT_STATS_LE32(general, non_channel_beacons);
 872                 PRINT_STATS_LE32(general, channel_beacons);
 873                 PRINT_STATS_LE32(general, num_missed_bcon);
 874                 PRINT_STATS_LE32(general, adc_rx_saturation_time);
 875                 PRINT_STATS_LE32(general, ina_detection_search_time);
 876                 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
 877                 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
 878                 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
 879                 PRINT_STATS_LE32(general, interference_data_flag);
 880                 PRINT_STATS_LE32(general, channel_load);
 881                 PRINT_STATS_LE32(general, beacon_rssi_a);
 882                 PRINT_STATS_LE32(general, beacon_rssi_b);
 883                 PRINT_STATS_LE32(general, beacon_rssi_c);
 884                 PRINT_STATS_LE32(general, beacon_energy_a);
 885                 PRINT_STATS_LE32(general, beacon_energy_b);
 886                 PRINT_STATS_LE32(general, beacon_energy_c);
 887                 PRINT_STATS_LE32(general, num_bt_kills);
 888                 PRINT_STATS_LE32(general, mac_id);
 889         }
 890
 891         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 892                          "Statistics_Rx - HT");
 893         if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
 894                 struct mvm_statistics_rx_ht_phy_v1 *ht =
 895                         &mvm->rx_stats_v3.ofdm_ht;
 896
 897                 PRINT_STATS_LE32(ht, plcp_err);
 898                 PRINT_STATS_LE32(ht, overrun_err);
 899                 PRINT_STATS_LE32(ht, early_overrun_err);
 900                 PRINT_STATS_LE32(ht, crc32_good);
 901                 PRINT_STATS_LE32(ht, crc32_err);
 902                 PRINT_STATS_LE32(ht, mh_format_err);
 903                 PRINT_STATS_LE32(ht, agg_crc32_good);
 904                 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 905                 PRINT_STATS_LE32(ht, agg_cnt);
 906                 PRINT_STATS_LE32(ht, unsupport_mcs);
 907         } else {
 908                 struct mvm_statistics_rx_ht_phy *ht =
 909                         &mvm->rx_stats.ofdm_ht;
 910
 911                 PRINT_STATS_LE32(ht, mh_format_err);
 912                 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
 913                 PRINT_STATS_LE32(ht, agg_cnt);
 914                 PRINT_STATS_LE32(ht, unsupport_mcs);
 915         }
 916
 917         mutex_unlock(&mvm->mutex);
 918
 919         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 920         kfree(buf);
 921
 922         return ret;
 923 }
 924 #undef PRINT_STAT_LE32
 925
 926 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 927                                           char __user *user_buf, size_t count,
 928                                           loff_t *ppos,
 929                                           struct iwl_mvm_frame_stats *stats)
 930 {
 931         char *buff, *pos, *endpos;
 932         int idx, i;
 933         int ret;
 934         static const size_t bufsz = 1024;
 935
 936         buff = kmalloc(bufsz, GFP_KERNEL);
 937         if (!buff)
 938                 return -ENOMEM;
 939
 940         spin_lock_bh(&mvm->drv_stats_lock);
 941
 942         pos = buff;
 943         endpos = pos + bufsz;
 944
 945         pos += scnprintf(pos, endpos - pos,
 946                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 947                          stats->legacy_frames,
 948                          stats->ht_frames,
 949                          stats->vht_frames);
 950         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 951                          stats->bw_20_frames,
 952                          stats->bw_40_frames,
 953                          stats->bw_80_frames);
 954         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 955                          stats->ngi_frames,
 956                          stats->sgi_frames);
 957         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 958                          stats->siso_frames,
 959                          stats->mimo2_frames);
 960         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 961                          stats->fail_frames,
 962                          stats->success_frames);
 963         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 964                          stats->agg_frames);
 965         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 966                          stats->ampdu_count);
 967         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 968                          stats->ampdu_count > 0 ?
 969                          (stats->agg_frames / stats->ampdu_count) : 0);
 970
 971         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 972
 973         idx = stats->last_frame_idx - 1;
 974         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 975                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 976                 if (stats->last_rates[idx] == 0)
 977                         continue;
 978                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 979                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 980                 pos += rs_pretty_print_rate(pos, endpos - pos,
 981                                             stats->last_rates[idx]);
 982         }
 983         spin_unlock_bh(&mvm->drv_stats_lock);
 984
 985         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 986         kfree(buff);
 987
 988         return ret;
 989 }
 990
 991 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 992                                            char __user *user_buf, size_t count,
 993                                            loff_t *ppos)
 994 {
 995         struct iwl_mvm *mvm = file->private_data;
 996
 997         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 998                                           &mvm->drv_rx_stats);
 999 }
1000
1001 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1002                                           size_t count, loff_t *ppos)
1003 {
1004         int __maybe_unused ret;
1005
1006         if (!iwl_mvm_firmware_running(mvm))
1007                 return -EIO;
1008
1009         mutex_lock(&mvm->mutex);
1010
1011         /* allow one more restart that we're provoking here */
1012         if (mvm->fw_restart >= 0)
1013                 mvm->fw_restart++;
1014
1015         /* take the return value to make compiler happy - it will fail anyway */
1016         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
1017
1018         mutex_unlock(&mvm->mutex);
1019
1020         return count;
1021 }
1022
1023 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1024                                       size_t count, loff_t *ppos)
1025 {
1026         int ret;
1027
1028         if (!iwl_mvm_firmware_running(mvm))
1029                 return -EIO;
1030
1031         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
1032         if (ret)
1033                 return ret;
1034
1035         iwl_force_nmi(mvm->trans);
1036
1037         iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
1038
1039         return count;
1040 }
1041
1042 static ssize_t
1043 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1044                                 char __user *user_buf,
1045                                 size_t count, loff_t *ppos)
1046 {
1047         struct iwl_mvm *mvm = file->private_data;
1048         int pos = 0;
1049         char buf[32];
1050         const size_t bufsz = sizeof(buf);
1051
1052         /* print which antennas were set for the scan command by the user */
1053         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1054         if (mvm->scan_rx_ant & ANT_A)
1055                 pos += scnprintf(buf + pos, bufsz - pos, "A");
1056         if (mvm->scan_rx_ant & ANT_B)
1057                 pos += scnprintf(buf + pos, bufsz - pos, "B");
1058         if (mvm->scan_rx_ant & ANT_C)
1059                 pos += scnprintf(buf + pos, bufsz - pos, "C");
1060         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
1061
1062         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1063 }
1064
1065 static ssize_t
1066 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1067                                  size_t count, loff_t *ppos)
1068 {
1069         u8 scan_rx_ant;
1070
1071         if (!iwl_mvm_firmware_running(mvm))
1072                 return -EIO;
1073
1074         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1075                 return -EINVAL;
1076         if (scan_rx_ant > ANT_ABC)
1077                 return -EINVAL;
1078         if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1079                 return -EINVAL;
1080
1081         if (mvm->scan_rx_ant != scan_rx_ant) {
1082                 mvm->scan_rx_ant = scan_rx_ant;
1083                 if (fw_has_capa(&mvm->fw->ucode_capa,
1084                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1085                         iwl_mvm_config_scan(mvm);
1086         }
1087
1088         return count;
1089 }
1090
1091 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1092                                                char *buf, size_t count,
1093                                                loff_t *ppos)
1094 {
1095         struct iwl_rss_config_cmd cmd = {
1096                 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1097                 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1098                              IWL_RSS_HASH_TYPE_IPV4_UDP |
1099                              IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1100                              IWL_RSS_HASH_TYPE_IPV6_TCP |
1101                              IWL_RSS_HASH_TYPE_IPV6_UDP |
1102                              IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1103         };
1104         int ret, i, num_repeats, nbytes = count / 2;
1105
1106         ret = hex2bin(cmd.indirection_table, buf, nbytes);
1107         if (ret)
1108                 return ret;
1109
1110         /*
1111          * The input is the redirection table, partial or full.
1112          * Repeat the pattern if needed.
1113          * For example, input of 01020F will be repeated 42 times,
1114          * indirecting RSS hash results to queues 1, 2, 15 (skipping
1115          * queues 3 - 14).
1116          */
1117         num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1118         for (i = 1; i < num_repeats; i++)
1119                 memcpy(&cmd.indirection_table[i * nbytes],
1120                        cmd.indirection_table, nbytes);
1121         /* handle cut in the middle pattern for the last places */
1122         memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1123                ARRAY_SIZE(cmd.indirection_table) % nbytes);
1124
1125         netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1126
1127         mutex_lock(&mvm->mutex);
1128         if (iwl_mvm_firmware_running(mvm))
1129                 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1130                                            sizeof(cmd), &cmd);
1131         else
1132                 ret = 0;
1133         mutex_unlock(&mvm->mutex);
1134
1135         return ret ?: count;
1136 }
1137
1138 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1139                                              char *buf, size_t count,
1140                                              loff_t *ppos)
1141 {
1142         struct iwl_rx_cmd_buffer rxb = {
1143                 ._rx_page_order = 0,
1144                 .truesize = 0, /* not used */
1145                 ._offset = 0,
1146         };
1147         struct iwl_rx_packet *pkt;
1148         struct iwl_rx_mpdu_desc *desc;
1149         int bin_len = count / 2;
1150         int ret = -EINVAL;
1151
1152         if (!iwl_mvm_firmware_running(mvm))
1153                 return -EIO;
1154
1155         /* supporting only 9000 descriptor */
1156         if (!mvm->trans->cfg->mq_rx_supported)
1157                 return -ENOTSUPP;
1158
1159         rxb._page = alloc_pages(GFP_ATOMIC, 0);
1160         if (!rxb._page)
1161                 return -ENOMEM;
1162         pkt = rxb_addr(&rxb);
1163
1164         ret = hex2bin(page_address(rxb._page), buf, bin_len);
1165         if (ret)
1166                 goto out;
1167
1168         /* avoid invalid memory access */
1169         if (bin_len < sizeof(*pkt) + sizeof(*desc))
1170                 goto out;
1171
1172         /* check this is RX packet */
1173         if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) !=
1174             WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))
1175                 goto out;
1176
1177         /* check the length in metadata matches actual received length */
1178         desc = (void *)pkt->data;
1179         if (le16_to_cpu(desc->mpdu_len) !=
1180             (bin_len - sizeof(*desc) - sizeof(*pkt)))
1181                 goto out;
1182
1183         local_bh_disable();
1184         iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0);
1185         local_bh_enable();
1186         ret = 0;
1187
1188 out:
1189         iwl_free_rxb(&rxb);
1190
1191         return ret ?: count;
1192 }
1193
1194 static ssize_t iwl_dbgfs_fw_dbg_conf_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         int conf;
1200         char buf[8];
1201         const size_t bufsz = sizeof(buf);
1202         int pos = 0;
1203
1204         mutex_lock(&mvm->mutex);
1205         conf = mvm->fwrt.dump.conf;
1206         mutex_unlock(&mvm->mutex);
1207
1208         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1209
1210         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1211 }
1212
1213 /*
1214  * Enable / Disable continuous recording.
1215  * Cause the FW to start continuous recording, by sending the relevant hcmd.
1216  * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING.
1217  * Disable: for 0 as input, DISABLE_CONT_RECORDING.
1218  */
1219 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm,
1220                                               char *buf, size_t count,
1221                                               loff_t *ppos)
1222 {
1223         struct iwl_trans *trans = mvm->trans;
1224         const struct iwl_fw_dbg_dest_tlv_v1 *dest = trans->dbg_dest_tlv;
1225         struct iwl_continuous_record_cmd cont_rec = {};
1226         int ret, rec_mode;
1227
1228         if (!iwl_mvm_firmware_running(mvm))
1229                 return -EIO;
1230
1231         if (!dest)
1232                 return -EOPNOTSUPP;
1233
1234         if (dest->monitor_mode != SMEM_MODE ||
1235             trans->cfg->device_family < IWL_DEVICE_FAMILY_8000)
1236                 return -EOPNOTSUPP;
1237
1238         ret = kstrtoint(buf, 0, &rec_mode);
1239         if (ret)
1240                 return ret;
1241
1242         cont_rec.record_mode.enable_recording = rec_mode ?
1243                 cpu_to_le16(ENABLE_CONT_RECORDING) :
1244                 cpu_to_le16(DISABLE_CONT_RECORDING);
1245
1246         mutex_lock(&mvm->mutex);
1247         ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0,
1248                                    sizeof(cont_rec), &cont_rec);
1249         mutex_unlock(&mvm->mutex);
1250
1251         return ret ?: count;
1252 }
1253
1254 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1255                                            char *buf, size_t count,
1256                                            loff_t *ppos)
1257 {
1258         unsigned int conf_id;
1259         int ret;
1260
1261         if (!iwl_mvm_firmware_running(mvm))
1262                 return -EIO;
1263
1264         ret = kstrtouint(buf, 0, &conf_id);
1265         if (ret)
1266                 return ret;
1267
1268         if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1269                 return -EINVAL;
1270
1271         mutex_lock(&mvm->mutex);
1272         ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1273         mutex_unlock(&mvm->mutex);
1274
1275         return ret ?: count;
1276 }
1277
1278 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1279                                               char *buf, size_t count,
1280                                               loff_t *ppos)
1281 {
1282         int ret;
1283
1284         if (!iwl_mvm_firmware_running(mvm))
1285                 return -EIO;
1286
1287         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1288         if (ret)
1289                 return ret;
1290         if (count == 0)
1291                 return 0;
1292
1293         iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1294                            (count - 1), NULL);
1295
1296         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1297
1298         return count;
1299 }
1300
1301 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
1302                                              char *buf, size_t count,
1303                                              loff_t *ppos)
1304 {
1305         unsigned int max_amsdu_len;
1306         int ret;
1307
1308         ret = kstrtouint(buf, 0, &max_amsdu_len);
1309         if (ret)
1310                 return ret;
1311
1312         if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
1313                 return -EINVAL;
1314         mvm->max_amsdu_len = max_amsdu_len;
1315
1316         return count;
1317 }
1318
1319 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1320 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1321 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1322                                             char __user *user_buf,
1323                                             size_t count, loff_t *ppos)
1324 {
1325         struct iwl_mvm *mvm = file->private_data;
1326         struct iwl_bcast_filter_cmd cmd;
1327         const struct iwl_fw_bcast_filter *filter;
1328         char *buf;
1329         int bufsz = 1024;
1330         int i, j, pos = 0;
1331         ssize_t ret;
1332
1333         buf = kzalloc(bufsz, GFP_KERNEL);
1334         if (!buf)
1335                 return -ENOMEM;
1336
1337         mutex_lock(&mvm->mutex);
1338         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1339                 ADD_TEXT("None\n");
1340                 mutex_unlock(&mvm->mutex);
1341                 goto out;
1342         }
1343         mutex_unlock(&mvm->mutex);
1344
1345         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1346                 filter = &cmd.filters[i];
1347
1348                 ADD_TEXT("Filter [%d]:\n", i);
1349                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1350                 ADD_TEXT("\tFrame Type: %s\n",
1351                          filter->frame_type ? "IPv4" : "Generic");
1352
1353                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1354                         const struct iwl_fw_bcast_filter_attr *attr;
1355
1356                         attr = &filter->attrs[j];
1357                         if (!attr->mask)
1358                                 break;
1359
1360                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1361                                  j, attr->offset,
1362                                  attr->offset_type ? "IP End" :
1363                                                      "Payload Start",
1364                                  be32_to_cpu(attr->mask),
1365                                  be32_to_cpu(attr->val),
1366                                  le16_to_cpu(attr->reserved1));
1367                 }
1368         }
1369 out:
1370         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1371         kfree(buf);
1372         return ret;
1373 }
1374
1375 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1376                                              size_t count, loff_t *ppos)
1377 {
1378         int pos, next_pos;
1379         struct iwl_fw_bcast_filter filter = {};
1380         struct iwl_bcast_filter_cmd cmd;
1381         u32 filter_id, attr_id, mask, value;
1382         int err = 0;
1383
1384         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1385                    &filter.frame_type, &pos) != 3)
1386                 return -EINVAL;
1387
1388         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1389             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1390                 return -EINVAL;
1391
1392         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1393              attr_id++) {
1394                 struct iwl_fw_bcast_filter_attr *attr =
1395                                 &filter.attrs[attr_id];
1396
1397                 if (pos >= count)
1398                         break;
1399
1400                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1401                            &attr->offset, &attr->offset_type,
1402                            &mask, &value, &next_pos) != 4)
1403                         return -EINVAL;
1404
1405                 attr->mask = cpu_to_be32(mask);
1406                 attr->val = cpu_to_be32(value);
1407                 if (mask)
1408                         filter.num_attrs++;
1409
1410                 pos += next_pos;
1411         }
1412
1413         mutex_lock(&mvm->mutex);
1414         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1415                &filter, sizeof(filter));
1416
1417         /* send updated bcast filtering configuration */
1418         if (iwl_mvm_firmware_running(mvm) &&
1419             mvm->dbgfs_bcast_filtering.override &&
1420             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1421                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1422                                            sizeof(cmd), &cmd);
1423         mutex_unlock(&mvm->mutex);
1424
1425         return err ?: count;
1426 }
1427
1428 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1429                                                  char __user *user_buf,
1430                                                  size_t count, loff_t *ppos)
1431 {
1432         struct iwl_mvm *mvm = file->private_data;
1433         struct iwl_bcast_filter_cmd cmd;
1434         char *buf;
1435         int bufsz = 1024;
1436         int i, pos = 0;
1437         ssize_t ret;
1438
1439         buf = kzalloc(bufsz, GFP_KERNEL);
1440         if (!buf)
1441                 return -ENOMEM;
1442
1443         mutex_lock(&mvm->mutex);
1444         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1445                 ADD_TEXT("None\n");
1446                 mutex_unlock(&mvm->mutex);
1447                 goto out;
1448         }
1449         mutex_unlock(&mvm->mutex);
1450
1451         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1452                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1453
1454                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1455                          i, mac->default_discard, mac->attached_filters);
1456         }
1457 out:
1458         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1459         kfree(buf);
1460         return ret;
1461 }
1462
1463 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1464                                                   char *buf, size_t count,
1465                                                   loff_t *ppos)
1466 {
1467         struct iwl_bcast_filter_cmd cmd;
1468         struct iwl_fw_bcast_mac mac = {};
1469         u32 mac_id, attached_filters;
1470         int err = 0;
1471
1472         if (!mvm->bcast_filters)
1473                 return -ENOENT;
1474
1475         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1476                    &attached_filters) != 3)
1477                 return -EINVAL;
1478
1479         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1480             mac.default_discard > 1 ||
1481             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1482                 return -EINVAL;
1483
1484         mac.attached_filters = cpu_to_le16(attached_filters);
1485
1486         mutex_lock(&mvm->mutex);
1487         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1488                &mac, sizeof(mac));
1489
1490         /* send updated bcast filtering configuration */
1491         if (iwl_mvm_firmware_running(mvm) &&
1492             mvm->dbgfs_bcast_filtering.override &&
1493             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1494                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1495                                            sizeof(cmd), &cmd);
1496         mutex_unlock(&mvm->mutex);
1497
1498         return err ?: count;
1499 }
1500 #endif
1501
1502 #ifdef CONFIG_PM_SLEEP
1503 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1504                                        size_t count, loff_t *ppos)
1505 {
1506         int store;
1507
1508         if (sscanf(buf, "%d", &store) != 1)
1509                 return -EINVAL;
1510
1511         mvm->store_d3_resume_sram = store;
1512
1513         return count;
1514 }
1515
1516 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1517                                       size_t count, loff_t *ppos)
1518 {
1519         struct iwl_mvm *mvm = file->private_data;
1520         const struct fw_img *img;
1521         int ofs, len, pos = 0;
1522         size_t bufsz, ret;
1523         char *buf;
1524         u8 *ptr = mvm->d3_resume_sram;
1525
1526         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1527         len = img->sec[IWL_UCODE_SECTION_DATA].len;
1528
1529         bufsz = len * 4 + 256;
1530         buf = kzalloc(bufsz, GFP_KERNEL);
1531         if (!buf)
1532                 return -ENOMEM;
1533
1534         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1535                          mvm->store_d3_resume_sram ? "en" : "dis");
1536
1537         if (ptr) {
1538                 for (ofs = 0; ofs < len; ofs += 16) {
1539                         pos += scnprintf(buf + pos, bufsz - pos,
1540                                          "0x%.4x %16ph\n", ofs, ptr + ofs);
1541                 }
1542         } else {
1543                 pos += scnprintf(buf + pos, bufsz - pos,
1544                                  "(no data captured)\n");
1545         }
1546
1547         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1548
1549         kfree(buf);
1550
1551         return ret;
1552 }
1553 #endif
1554
1555 #define PRINT_MVM_REF(ref) do {                                         \
1556         if (mvm->refs[ref])                                             \
1557                 pos += scnprintf(buf + pos, bufsz - pos,                \
1558                                  "\t(0x%lx): %d %s\n",                  \
1559                                  BIT(ref), mvm->refs[ref], #ref);       \
1560 } while (0)
1561
1562 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1563                                         char __user *user_buf,
1564                                         size_t count, loff_t *ppos)
1565 {
1566         struct iwl_mvm *mvm = file->private_data;
1567         int i, pos = 0;
1568         char buf[256];
1569         const size_t bufsz = sizeof(buf);
1570         u32 refs = 0;
1571
1572         for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1573                 if (mvm->refs[i])
1574                         refs |= BIT(i);
1575
1576         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1577                          refs);
1578
1579         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1580         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1581         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1582         PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1583         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1584         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1585         PRINT_MVM_REF(IWL_MVM_REF_USER);
1586         PRINT_MVM_REF(IWL_MVM_REF_TX);
1587         PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1588         PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1589         PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1590         PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1591         PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1592         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1593         PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1594         PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1595         PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1596         PRINT_MVM_REF(IWL_MVM_REF_NMI);
1597         PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1598         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1599         PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1600         PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1601         PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1602         PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD);
1603         PRINT_MVM_REF(IWL_MVM_REF_RX);
1604
1605         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1606 }
1607
1608 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1609                                          size_t count, loff_t *ppos)
1610 {
1611         unsigned long value;
1612         int ret;
1613         bool taken;
1614
1615         ret = kstrtoul(buf, 10, &value);
1616         if (ret < 0)
1617                 return ret;
1618
1619         mutex_lock(&mvm->mutex);
1620
1621         taken = mvm->refs[IWL_MVM_REF_USER];
1622         if (value == 1 && !taken)
1623                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1624         else if (value == 0 && taken)
1625                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1626         else
1627                 ret = -EINVAL;
1628
1629         mutex_unlock(&mvm->mutex);
1630
1631         if (ret < 0)
1632                 return ret;
1633         return count;
1634 }
1635
1636 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1637         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1638 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1639         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1640 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1641                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1642                                          &iwl_dbgfs_##name##_ops))      \
1643                         goto err;                                       \
1644         } while (0)
1645 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1646         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1647
1648 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
1649         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1650 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
1651         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1652
1653 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do {  \
1654                 if (!debugfs_create_file(alias, mode, parent, sta,      \
1655                                          &iwl_dbgfs_##name##_ops))      \
1656                         goto err;                                       \
1657         } while (0)
1658 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
1659         MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
1660
1661 static ssize_t
1662 iwl_dbgfs_prph_reg_read(struct file *file,
1663                         char __user *user_buf,
1664                         size_t count, loff_t *ppos)
1665 {
1666         struct iwl_mvm *mvm = file->private_data;
1667         int pos = 0;
1668         char buf[32];
1669         const size_t bufsz = sizeof(buf);
1670         int ret;
1671
1672         if (!mvm->dbgfs_prph_reg_addr)
1673                 return -EINVAL;
1674
1675         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1676         if (ret)
1677                 return ret;
1678
1679         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1680                 mvm->dbgfs_prph_reg_addr,
1681                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1682
1683         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1684
1685         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1686 }
1687
1688 static ssize_t
1689 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1690                          size_t count, loff_t *ppos)
1691 {
1692         u8 args;
1693         u32 value;
1694         int ret;
1695
1696         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1697         /* if we only want to set the reg address - nothing more to do */
1698         if (args == 1)
1699                 goto out;
1700
1701         /* otherwise, make sure we have both address and value */
1702         if (args != 2)
1703                 return -EINVAL;
1704
1705         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1706         if (ret)
1707                 return ret;
1708
1709         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1710
1711         iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1712 out:
1713         return count;
1714 }
1715
1716 static ssize_t
1717 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1718                               size_t count, loff_t *ppos)
1719 {
1720         int ret;
1721
1722         if (!iwl_mvm_firmware_running(mvm))
1723                 return -EIO;
1724
1725         mutex_lock(&mvm->mutex);
1726         ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1727         mutex_unlock(&mvm->mutex);
1728
1729         return ret ?: count;
1730 }
1731
1732 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1733
1734 /* Device wide debugfs entries */
1735 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1736 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1737 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1738 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1739 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1740 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1741 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1742 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1743 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1744 MVM_DEBUGFS_READ_FILE_OPS(stations);
1745 MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1746 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1747 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1748 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1749 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1750 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1751 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1752 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1753 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1754 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1755 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1756 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1757 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1758 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1759 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1760 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8);
1761 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8);
1762 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1763                            (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1764 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1765
1766 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1767 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1768 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1769 #endif
1770
1771 #ifdef CONFIG_PM_SLEEP
1772 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1773 #endif
1774 #ifdef CONFIG_ACPI
1775 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1776 #endif
1777
1778 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1779                                   size_t count, loff_t *ppos)
1780 {
1781         struct iwl_mvm *mvm = file->private_data;
1782         struct iwl_dbg_mem_access_cmd cmd = {};
1783         struct iwl_dbg_mem_access_rsp *rsp;
1784         struct iwl_host_cmd hcmd = {
1785                 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1786                 .data = { &cmd, },
1787                 .len = { sizeof(cmd) },
1788         };
1789         size_t delta;
1790         ssize_t ret, len;
1791
1792         if (!iwl_mvm_firmware_running(mvm))
1793                 return -EIO;
1794
1795         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1796                              DEBUG_GROUP, 0);
1797         cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1798
1799         /* Take care of alignment of both the position and the length */
1800         delta = *ppos & 0x3;
1801         cmd.addr = cpu_to_le32(*ppos - delta);
1802         cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1803                                   (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1804
1805         mutex_lock(&mvm->mutex);
1806         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1807         mutex_unlock(&mvm->mutex);
1808
1809         if (ret < 0)
1810                 return ret;
1811
1812         rsp = (void *)hcmd.resp_pkt->data;
1813         if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1814                 ret = -ENXIO;
1815                 goto out;
1816         }
1817
1818         len = min((size_t)le32_to_cpu(rsp->len) << 2,
1819                   iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1820         len = min(len - delta, count);
1821         if (len < 0) {
1822                 ret = -EFAULT;
1823                 goto out;
1824         }
1825
1826         ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len);
1827         *ppos += ret;
1828
1829 out:
1830         iwl_free_resp(&hcmd);
1831         return ret;
1832 }
1833
1834 static ssize_t iwl_dbgfs_mem_write(struct file *file,
1835                                    const char __user *user_buf, size_t count,
1836                                    loff_t *ppos)
1837 {
1838         struct iwl_mvm *mvm = file->private_data;
1839         struct iwl_dbg_mem_access_cmd *cmd;
1840         struct iwl_dbg_mem_access_rsp *rsp;
1841         struct iwl_host_cmd hcmd = {};
1842         size_t cmd_size;
1843         size_t data_size;
1844         u32 op, len;
1845         ssize_t ret;
1846
1847         if (!iwl_mvm_firmware_running(mvm))
1848                 return -EIO;
1849
1850         hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1851                              DEBUG_GROUP, 0);
1852
1853         if (*ppos & 0x3 || count < 4) {
1854                 op = DEBUG_MEM_OP_WRITE_BYTES;
1855                 len = min(count, (size_t)(4 - (*ppos & 0x3)));
1856                 data_size = len;
1857         } else {
1858                 op = DEBUG_MEM_OP_WRITE;
1859                 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1860                 data_size = len << 2;
1861         }
1862
1863         cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1864         cmd = kzalloc(cmd_size, GFP_KERNEL);
1865         if (!cmd)
1866                 return -ENOMEM;
1867
1868         cmd->op = cpu_to_le32(op);
1869         cmd->len = cpu_to_le32(len);
1870         cmd->addr = cpu_to_le32(*ppos);
1871         if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1872                 kfree(cmd);
1873                 return -EFAULT;
1874         }
1875
1876         hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1877         hcmd.data[0] = (void *)cmd;
1878         hcmd.len[0] = cmd_size;
1879
1880         mutex_lock(&mvm->mutex);
1881         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1882         mutex_unlock(&mvm->mutex);
1883
1884         kfree(cmd);
1885
1886         if (ret < 0)
1887                 return ret;
1888
1889         rsp = (void *)hcmd.resp_pkt->data;
1890         if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1891                 ret = -ENXIO;
1892                 goto out;
1893         }
1894
1895         ret = data_size;
1896         *ppos += ret;
1897
1898 out:
1899         iwl_free_resp(&hcmd);
1900         return ret;
1901 }
1902
1903 static const struct file_operations iwl_dbgfs_mem_ops = {
1904         .read = iwl_dbgfs_mem_read,
1905         .write = iwl_dbgfs_mem_write,
1906         .open = simple_open,
1907         .llseek = default_llseek,
1908 };
1909
1910 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
1911                              struct ieee80211_vif *vif,
1912                              struct ieee80211_sta *sta,
1913                              struct dentry *dir)
1914 {
1915         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1916
1917         if (iwl_mvm_has_tlc_offload(mvm))
1918                 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, S_IRUSR);
1919
1920         return;
1921 err:
1922         IWL_ERR(mvm, "Can't create the mvm station debugfs entry\n");
1923 }
1924
1925 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1926 {
1927         struct dentry *bcast_dir __maybe_unused;
1928         char buf[100];
1929
1930         spin_lock_init(&mvm->drv_stats_lock);
1931
1932         mvm->debugfs_dir = dbgfs_dir;
1933
1934         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1935         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1936         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1937         MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1938                              S_IWUSR | S_IRUSR);
1939         MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1940         MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR);
1941         MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR);
1942         MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR);
1943         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1944         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1945         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1946         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1947                              S_IRUSR | S_IWUSR);
1948         MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, S_IRUSR);
1949         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1950         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1951         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1952         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1953         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1954         MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1955         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1956                              S_IWUSR | S_IRUSR);
1957         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1958         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1959         MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1960         MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1961         MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR);
1962         MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1963         MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
1964         MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR);
1965         MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR);
1966 #ifdef CONFIG_ACPI
1967         MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR);
1968 #endif
1969
1970         if (!debugfs_create_bool("enable_scan_iteration_notif",
1971                                  S_IRUSR | S_IWUSR,
1972                                  mvm->debugfs_dir,
1973                                  &mvm->scan_iter_notif_enabled))
1974                 goto err;
1975         if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR,
1976                                  mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
1977                 goto err;
1978
1979 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1980         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1981                 bcast_dir = debugfs_create_dir("bcast_filtering",
1982                                                mvm->debugfs_dir);
1983                 if (!bcast_dir)
1984                         goto err;
1985
1986                 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1987                                 bcast_dir,
1988                                 &mvm->dbgfs_bcast_filtering.override))
1989                         goto err;
1990
1991                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1992                                            bcast_dir, S_IWUSR | S_IRUSR);
1993                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1994                                            bcast_dir, S_IWUSR | S_IRUSR);
1995         }
1996 #endif
1997
1998 #ifdef CONFIG_PM_SLEEP
1999         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
2000         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
2001         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
2002                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
2003                 goto err;
2004         if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
2005                                 mvm->debugfs_dir, &mvm->last_netdetect_scans))
2006                 goto err;
2007 #endif
2008
2009         if (!debugfs_create_u8("ps_disabled", S_IRUSR,
2010                                mvm->debugfs_dir, &mvm->ps_disabled))
2011                 goto err;
2012         if (!debugfs_create_blob("nvm_hw", S_IRUSR,
2013                                   mvm->debugfs_dir, &mvm->nvm_hw_blob))
2014                 goto err;
2015         if (!debugfs_create_blob("nvm_sw", S_IRUSR,
2016                                   mvm->debugfs_dir, &mvm->nvm_sw_blob))
2017                 goto err;
2018         if (!debugfs_create_blob("nvm_calib", S_IRUSR,
2019                                   mvm->debugfs_dir, &mvm->nvm_calib_blob))
2020                 goto err;
2021         if (!debugfs_create_blob("nvm_prod", S_IRUSR,
2022                                   mvm->debugfs_dir, &mvm->nvm_prod_blob))
2023                 goto err;
2024         if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
2025                                  mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
2026                 goto err;
2027
2028         debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm,
2029                             &iwl_dbgfs_mem_ops);
2030
2031         /*
2032          * Create a symlink with mac80211. It will be removed when mac80211
2033          * exists (before the opmode exists which removes the target.)
2034          */
2035         snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
2036         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
2037                 goto err;
2038
2039         return 0;
2040 err:
2041         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
2042         return -ENOMEM;
2043 }