drivers/net/wireless/ath/ath10k/debug.c

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/debugfs.h>
  20 #include <linux/vmalloc.h>
  21 #include <linux/utsname.h>
  22
  23 #include "core.h"
  24 #include "debug.h"
  25 #include "hif.h"
  26 #include "wmi-ops.h"
  27
  28 /* ms */
  29 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  30
  31 #define ATH10K_FW_CRASH_DUMP_VERSION 1
  32
  33 /**
  34  * enum ath10k_fw_crash_dump_type - types of data in the dump file
  35  * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
  36  */
  37 enum ath10k_fw_crash_dump_type {
  38         ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
  39
  40         ATH10K_FW_CRASH_DUMP_MAX,
  41 };
  42
  43 struct ath10k_tlv_dump_data {
  44         /* see ath10k_fw_crash_dump_type above */
  45         __le32 type;
  46
  47         /* in bytes */
  48         __le32 tlv_len;
  49
  50         /* pad to 32-bit boundaries as needed */
  51         u8 tlv_data[];
  52 } __packed;
  53
  54 struct ath10k_dump_file_data {
  55         /* dump file information */
  56
  57         /* "ATH10K-FW-DUMP" */
  58         char df_magic[16];
  59
  60         __le32 len;
  61
  62         /* file dump version */
  63         __le32 version;
  64
  65         /* some info we can get from ath10k struct that might help */
  66
  67         u8 uuid[16];
  68
  69         __le32 chip_id;
  70
  71         /* 0 for now, in place for later hardware */
  72         __le32 bus_type;
  73
  74         __le32 target_version;
  75         __le32 fw_version_major;
  76         __le32 fw_version_minor;
  77         __le32 fw_version_release;
  78         __le32 fw_version_build;
  79         __le32 phy_capability;
  80         __le32 hw_min_tx_power;
  81         __le32 hw_max_tx_power;
  82         __le32 ht_cap_info;
  83         __le32 vht_cap_info;
  84         __le32 num_rf_chains;
  85
  86         /* firmware version string */
  87         char fw_ver[ETHTOOL_FWVERS_LEN];
  88
  89         /* Kernel related information */
  90
  91         /* time-of-day stamp */
  92         __le64 tv_sec;
  93
  94         /* time-of-day stamp, nano-seconds */
  95         __le64 tv_nsec;
  96
  97         /* LINUX_VERSION_CODE */
  98         __le32 kernel_ver_code;
  99
 100         /* VERMAGIC_STRING */
 101         char kernel_ver[64];
 102
 103         /* room for growth w/out changing binary format */
 104         u8 unused[128];
 105
 106         /* struct ath10k_tlv_dump_data + more */
 107         u8 data[0];
 108 } __packed;
 109
 110 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
 111 {
 112         struct va_format vaf = {
 113                 .fmt = fmt,
 114         };
 115         va_list args;
 116
 117         va_start(args, fmt);
 118         vaf.va = &args;
 119         dev_info(ar->dev, "%pV", &vaf);
 120         trace_ath10k_log_info(ar, &vaf);
 121         va_end(args);
 122 }
 123 EXPORT_SYMBOL(ath10k_info);
 124
 125 void ath10k_print_driver_info(struct ath10k *ar)
 126 {
 127         char fw_features[128];
 128
 129         ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
 130
 131         ath10k_info(ar, "%s (0x%08x, 0x%08x%s%s%s) fw %s api %d htt %d.%d wmi %d cal %s max_sta %d features %s\n",
 132                     ar->hw_params.name,
 133                     ar->target_version,
 134                     ar->chip_id,
 135                     (strlen(ar->spec_board_id) > 0 ? ", " : ""),
 136                     ar->spec_board_id,
 137                     (strlen(ar->spec_board_id) > 0 && !ar->spec_board_loaded
 138                      ? " fallback" : ""),
 139                     ar->hw->wiphy->fw_version,
 140                     ar->fw_api,
 141                     ar->htt.target_version_major,
 142                     ar->htt.target_version_minor,
 143                     ar->wmi.op_version,
 144                     ath10k_cal_mode_str(ar->cal_mode),
 145                     ar->max_num_stations,
 146                     fw_features);
 147         ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n",
 148                     config_enabled(CONFIG_ATH10K_DEBUG),
 149                     config_enabled(CONFIG_ATH10K_DEBUGFS),
 150                     config_enabled(CONFIG_ATH10K_TRACING),
 151                     config_enabled(CONFIG_ATH10K_DFS_CERTIFIED),
 152                     config_enabled(CONFIG_NL80211_TESTMODE));
 153 }
 154 EXPORT_SYMBOL(ath10k_print_driver_info);
 155
 156 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 157 {
 158         struct va_format vaf = {
 159                 .fmt = fmt,
 160         };
 161         va_list args;
 162
 163         va_start(args, fmt);
 164         vaf.va = &args;
 165         dev_err(ar->dev, "%pV", &vaf);
 166         trace_ath10k_log_err(ar, &vaf);
 167         va_end(args);
 168 }
 169 EXPORT_SYMBOL(ath10k_err);
 170
 171 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 172 {
 173         struct va_format vaf = {
 174                 .fmt = fmt,
 175         };
 176         va_list args;
 177
 178         va_start(args, fmt);
 179         vaf.va = &args;
 180         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 181         trace_ath10k_log_warn(ar, &vaf);
 182
 183         va_end(args);
 184 }
 185 EXPORT_SYMBOL(ath10k_warn);
 186
 187 #ifdef CONFIG_ATH10K_DEBUGFS
 188
 189 static ssize_t ath10k_read_wmi_services(struct file *file,
 190                                         char __user *user_buf,
 191                                         size_t count, loff_t *ppos)
 192 {
 193         struct ath10k *ar = file->private_data;
 194         char *buf;
 195         unsigned int len = 0, buf_len = 4096;
 196         const char *name;
 197         ssize_t ret_cnt;
 198         bool enabled;
 199         int i;
 200
 201         buf = kzalloc(buf_len, GFP_KERNEL);
 202         if (!buf)
 203                 return -ENOMEM;
 204
 205         mutex_lock(&ar->conf_mutex);
 206
 207         if (len > buf_len)
 208                 len = buf_len;
 209
 210         spin_lock_bh(&ar->data_lock);
 211         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 212                 enabled = test_bit(i, ar->wmi.svc_map);
 213                 name = wmi_service_name(i);
 214
 215                 if (!name) {
 216                         if (enabled)
 217                                 len += scnprintf(buf + len, buf_len - len,
 218                                                  "%-40s %s (bit %d)\n",
 219                                                  "unknown", "enabled", i);
 220
 221                         continue;
 222                 }
 223
 224                 len += scnprintf(buf + len, buf_len - len,
 225                                  "%-40s %s\n",
 226                                  name, enabled ? "enabled" : "-");
 227         }
 228         spin_unlock_bh(&ar->data_lock);
 229
 230         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 231
 232         mutex_unlock(&ar->conf_mutex);
 233
 234         kfree(buf);
 235         return ret_cnt;
 236 }
 237
 238 static const struct file_operations fops_wmi_services = {
 239         .read = ath10k_read_wmi_services,
 240         .open = simple_open,
 241         .owner = THIS_MODULE,
 242         .llseek = default_llseek,
 243 };
 244
 245 static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head)
 246 {
 247         struct ath10k_fw_stats_pdev *i, *tmp;
 248
 249         list_for_each_entry_safe(i, tmp, head, list) {
 250                 list_del(&i->list);
 251                 kfree(i);
 252         }
 253 }
 254
 255 static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head)
 256 {
 257         struct ath10k_fw_stats_vdev *i, *tmp;
 258
 259         list_for_each_entry_safe(i, tmp, head, list) {
 260                 list_del(&i->list);
 261                 kfree(i);
 262         }
 263 }
 264
 265 static void ath10k_debug_fw_stats_peers_free(struct list_head *head)
 266 {
 267         struct ath10k_fw_stats_peer *i, *tmp;
 268
 269         list_for_each_entry_safe(i, tmp, head, list) {
 270                 list_del(&i->list);
 271                 kfree(i);
 272         }
 273 }
 274
 275 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 276 {
 277         spin_lock_bh(&ar->data_lock);
 278         ar->debug.fw_stats_done = false;
 279         ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 280         ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 281         ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 282         spin_unlock_bh(&ar->data_lock);
 283 }
 284
 285 static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head)
 286 {
 287         struct ath10k_fw_stats_peer *i;
 288         size_t num = 0;
 289
 290         list_for_each_entry(i, head, list)
 291                 ++num;
 292
 293         return num;
 294 }
 295
 296 static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head)
 297 {
 298         struct ath10k_fw_stats_vdev *i;
 299         size_t num = 0;
 300
 301         list_for_each_entry(i, head, list)
 302                 ++num;
 303
 304         return num;
 305 }
 306
 307 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 308 {
 309         struct ath10k_fw_stats stats = {};
 310         bool is_start, is_started, is_end;
 311         size_t num_peers;
 312         size_t num_vdevs;
 313         int ret;
 314
 315         INIT_LIST_HEAD(&stats.pdevs);
 316         INIT_LIST_HEAD(&stats.vdevs);
 317         INIT_LIST_HEAD(&stats.peers);
 318
 319         spin_lock_bh(&ar->data_lock);
 320         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 321         if (ret) {
 322                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 323                 goto unlock;
 324         }
 325
 326         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
 327          * splits the stats data and delivers it in a ping-pong fashion of
 328          * request cmd-update event.
 329          *
 330          * However there is no explicit end-of-data. Instead start-of-data is
 331          * used as an implicit one. This works as follows:
 332          *  a) discard stat update events until one with pdev stats is
 333          *     delivered - this skips session started at end of (b)
 334          *  b) consume stat update events until another one with pdev stats is
 335          *     delivered which is treated as end-of-data and is itself discarded
 336          */
 337
 338         if (ar->debug.fw_stats_done) {
 339                 ath10k_warn(ar, "received unsolicited stats update event\n");
 340                 goto free;
 341         }
 342
 343         num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers);
 344         num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
 345         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 346                     !list_empty(&stats.pdevs));
 347         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 348                   !list_empty(&stats.pdevs));
 349
 350         if (is_start)
 351                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 352
 353         if (is_end)
 354                 ar->debug.fw_stats_done = true;
 355
 356         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 357
 358         if (is_started && !is_end) {
 359                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 360                         /* Although this is unlikely impose a sane limit to
 361                          * prevent firmware from DoS-ing the host.
 362                          */
 363                         ath10k_warn(ar, "dropping fw peer stats\n");
 364                         goto free;
 365                 }
 366
 367                 if (num_vdevs >= BITS_PER_LONG) {
 368                         ath10k_warn(ar, "dropping fw vdev stats\n");
 369                         goto free;
 370                 }
 371
 372                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 373                 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
 374         }
 375
 376         complete(&ar->debug.fw_stats_complete);
 377
 378 free:
 379         /* In some cases lists have been spliced and cleared. Free up
 380          * resources if that is not the case.
 381          */
 382         ath10k_debug_fw_stats_pdevs_free(&stats.pdevs);
 383         ath10k_debug_fw_stats_vdevs_free(&stats.vdevs);
 384         ath10k_debug_fw_stats_peers_free(&stats.peers);
 385
 386 unlock:
 387         spin_unlock_bh(&ar->data_lock);
 388 }
 389
 390 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 391 {
 392         unsigned long timeout, time_left;
 393         int ret;
 394
 395         lockdep_assert_held(&ar->conf_mutex);
 396
 397         timeout = jiffies + msecs_to_jiffies(1 * HZ);
 398
 399         ath10k_debug_fw_stats_reset(ar);
 400
 401         for (;;) {
 402                 if (time_after(jiffies, timeout))
 403                         return -ETIMEDOUT;
 404
 405                 reinit_completion(&ar->debug.fw_stats_complete);
 406
 407                 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
 408                 if (ret) {
 409                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
 410                         return ret;
 411                 }
 412
 413                 time_left =
 414                 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 415                                             1 * HZ);
 416                 if (!time_left)
 417                         return -ETIMEDOUT;
 418
 419                 spin_lock_bh(&ar->data_lock);
 420                 if (ar->debug.fw_stats_done) {
 421                         spin_unlock_bh(&ar->data_lock);
 422                         break;
 423                 }
 424                 spin_unlock_bh(&ar->data_lock);
 425         }
 426
 427         return 0;
 428 }
 429
 430 /* FIXME: How to calculate the buffer size sanely? */
 431 #define ATH10K_FW_STATS_BUF_SIZE (1024*1024)
 432
 433 static void ath10k_fw_stats_fill(struct ath10k *ar,
 434                                  struct ath10k_fw_stats *fw_stats,
 435                                  char *buf)
 436 {
 437         unsigned int len = 0;
 438         unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE;
 439         const struct ath10k_fw_stats_pdev *pdev;
 440         const struct ath10k_fw_stats_vdev *vdev;
 441         const struct ath10k_fw_stats_peer *peer;
 442         size_t num_peers;
 443         size_t num_vdevs;
 444         int i;
 445
 446         spin_lock_bh(&ar->data_lock);
 447
 448         pdev = list_first_entry_or_null(&fw_stats->pdevs,
 449                                         struct ath10k_fw_stats_pdev, list);
 450         if (!pdev) {
 451                 ath10k_warn(ar, "failed to get pdev stats\n");
 452                 goto unlock;
 453         }
 454
 455         num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers);
 456         num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs);
 457
 458         len += scnprintf(buf + len, buf_len - len, "\n");
 459         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 460                          "ath10k PDEV stats");
 461         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 462                                  "=================");
 463
 464         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 465                          "Channel noise floor", pdev->ch_noise_floor);
 466         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 467                          "Channel TX power", pdev->chan_tx_power);
 468         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 469                          "TX frame count", pdev->tx_frame_count);
 470         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 471                          "RX frame count", pdev->rx_frame_count);
 472         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 473                          "RX clear count", pdev->rx_clear_count);
 474         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 475                          "Cycle count", pdev->cycle_count);
 476         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 477                          "PHY error count", pdev->phy_err_count);
 478         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 479                          "RTS bad count", pdev->rts_bad);
 480         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 481                          "RTS good count", pdev->rts_good);
 482         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 483                          "FCS bad count", pdev->fcs_bad);
 484         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 485                          "No beacon count", pdev->no_beacons);
 486         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 487                          "MIB int count", pdev->mib_int_count);
 488
 489         len += scnprintf(buf + len, buf_len - len, "\n");
 490         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 491                          "ath10k PDEV TX stats");
 492         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 493                                  "=================");
 494
 495         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 496                          "HTT cookies queued", pdev->comp_queued);
 497         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 498                          "HTT cookies disp.", pdev->comp_delivered);
 499         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 500                          "MSDU queued", pdev->msdu_enqued);
 501         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 502                          "MPDU queued", pdev->mpdu_enqued);
 503         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 504                          "MSDUs dropped", pdev->wmm_drop);
 505         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 506                          "Local enqued", pdev->local_enqued);
 507         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 508                          "Local freed", pdev->local_freed);
 509         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 510                          "HW queued", pdev->hw_queued);
 511         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 512                          "PPDUs reaped", pdev->hw_reaped);
 513         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 514                          "Num underruns", pdev->underrun);
 515         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 516                          "PPDUs cleaned", pdev->tx_abort);
 517         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 518                          "MPDUs requed", pdev->mpdus_requed);
 519         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 520                          "Excessive retries", pdev->tx_ko);
 521         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 522                          "HW rate", pdev->data_rc);
 523         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 524                          "Sched self tiggers", pdev->self_triggers);
 525         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 526                          "Dropped due to SW retries",
 527                          pdev->sw_retry_failure);
 528         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 529                          "Illegal rate phy errors",
 530                          pdev->illgl_rate_phy_err);
 531         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 532                          "Pdev continous xretry", pdev->pdev_cont_xretry);
 533         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 534                          "TX timeout", pdev->pdev_tx_timeout);
 535         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 536                          "PDEV resets", pdev->pdev_resets);
 537         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 538                          "PHY underrun", pdev->phy_underrun);
 539         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 540                          "MPDU is more than txop limit", pdev->txop_ovf);
 541
 542         len += scnprintf(buf + len, buf_len - len, "\n");
 543         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 544                          "ath10k PDEV RX stats");
 545         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 546                                  "=================");
 547
 548         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 549                          "Mid PPDU route change",
 550                          pdev->mid_ppdu_route_change);
 551         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 552                          "Tot. number of statuses", pdev->status_rcvd);
 553         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 554                          "Extra frags on rings 0", pdev->r0_frags);
 555         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 556                          "Extra frags on rings 1", pdev->r1_frags);
 557         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 558                          "Extra frags on rings 2", pdev->r2_frags);
 559         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 560                          "Extra frags on rings 3", pdev->r3_frags);
 561         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 562                          "MSDUs delivered to HTT", pdev->htt_msdus);
 563         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 564                          "MPDUs delivered to HTT", pdev->htt_mpdus);
 565         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 566                          "MSDUs delivered to stack", pdev->loc_msdus);
 567         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 568                          "MPDUs delivered to stack", pdev->loc_mpdus);
 569         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 570                          "Oversized AMSUs", pdev->oversize_amsdu);
 571         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 572                          "PHY errors", pdev->phy_errs);
 573         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 574                          "PHY errors drops", pdev->phy_err_drop);
 575         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 576                          "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs);
 577
 578         len += scnprintf(buf + len, buf_len - len, "\n");
 579         len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
 580                          "ath10k VDEV stats", num_vdevs);
 581         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 582                                  "=================");
 583
 584         list_for_each_entry(vdev, &fw_stats->vdevs, list) {
 585                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 586                                  "vdev id", vdev->vdev_id);
 587                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 588                                  "beacon snr", vdev->beacon_snr);
 589                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 590                                  "data snr", vdev->data_snr);
 591                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 592                                  "num rx frames", vdev->num_rx_frames);
 593                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 594                                  "num rts fail", vdev->num_rts_fail);
 595                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 596                                  "num rts success", vdev->num_rts_success);
 597                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 598                                  "num rx err", vdev->num_rx_err);
 599                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 600                                  "num rx discard", vdev->num_rx_discard);
 601                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 602                                  "num tx not acked", vdev->num_tx_not_acked);
 603
 604                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++)
 605                         len += scnprintf(buf + len, buf_len - len,
 606                                         "%25s [%02d] %u\n",
 607                                          "num tx frames", i,
 608                                          vdev->num_tx_frames[i]);
 609
 610                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++)
 611                         len += scnprintf(buf + len, buf_len - len,
 612                                         "%25s [%02d] %u\n",
 613                                          "num tx frames retries", i,
 614                                          vdev->num_tx_frames_retries[i]);
 615
 616                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++)
 617                         len += scnprintf(buf + len, buf_len - len,
 618                                         "%25s [%02d] %u\n",
 619                                          "num tx frames failures", i,
 620                                          vdev->num_tx_frames_failures[i]);
 621
 622                 for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++)
 623                         len += scnprintf(buf + len, buf_len - len,
 624                                         "%25s [%02d] 0x%08x\n",
 625                                          "tx rate history", i,
 626                                          vdev->tx_rate_history[i]);
 627
 628                 for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++)
 629                         len += scnprintf(buf + len, buf_len - len,
 630                                         "%25s [%02d] %u\n",
 631                                          "beacon rssi history", i,
 632                                          vdev->beacon_rssi_history[i]);
 633
 634                 len += scnprintf(buf + len, buf_len - len, "\n");
 635         }
 636
 637         len += scnprintf(buf + len, buf_len - len, "\n");
 638         len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
 639                          "ath10k PEER stats", num_peers);
 640         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 641                                  "=================");
 642
 643         list_for_each_entry(peer, &fw_stats->peers, list) {
 644                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 645                                  "Peer MAC address", peer->peer_macaddr);
 646                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 647                                  "Peer RSSI", peer->peer_rssi);
 648                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 649                                  "Peer TX rate", peer->peer_tx_rate);
 650                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 651                                  "Peer RX rate", peer->peer_rx_rate);
 652                 len += scnprintf(buf + len, buf_len - len, "\n");
 653         }
 654
 655 unlock:
 656         spin_unlock_bh(&ar->data_lock);
 657
 658         if (len >= buf_len)
 659                 buf[len - 1] = 0;
 660         else
 661                 buf[len] = 0;
 662 }
 663
 664 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 665 {
 666         struct ath10k *ar = inode->i_private;
 667         void *buf = NULL;
 668         int ret;
 669
 670         mutex_lock(&ar->conf_mutex);
 671
 672         if (ar->state != ATH10K_STATE_ON) {
 673                 ret = -ENETDOWN;
 674                 goto err_unlock;
 675         }
 676
 677         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 678         if (!buf) {
 679                 ret = -ENOMEM;
 680                 goto err_unlock;
 681         }
 682
 683         ret = ath10k_debug_fw_stats_request(ar);
 684         if (ret) {
 685                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 686                 goto err_free;
 687         }
 688
 689         ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 690         file->private_data = buf;
 691
 692         mutex_unlock(&ar->conf_mutex);
 693         return 0;
 694
 695 err_free:
 696         vfree(buf);
 697
 698 err_unlock:
 699         mutex_unlock(&ar->conf_mutex);
 700         return ret;
 701 }
 702
 703 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 704 {
 705         vfree(file->private_data);
 706
 707         return 0;
 708 }
 709
 710 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 711                                     size_t count, loff_t *ppos)
 712 {
 713         const char *buf = file->private_data;
 714         unsigned int len = strlen(buf);
 715
 716         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 717 }
 718
 719 static const struct file_operations fops_fw_stats = {
 720         .open = ath10k_fw_stats_open,
 721         .release = ath10k_fw_stats_release,
 722         .read = ath10k_fw_stats_read,
 723         .owner = THIS_MODULE,
 724         .llseek = default_llseek,
 725 };
 726
 727 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 728                                                 char __user *user_buf,
 729                                                 size_t count, loff_t *ppos)
 730 {
 731         struct ath10k *ar = file->private_data;
 732         int ret, len, buf_len;
 733         char *buf;
 734
 735         buf_len = 500;
 736         buf = kmalloc(buf_len, GFP_KERNEL);
 737         if (!buf)
 738                 return -ENOMEM;
 739
 740         spin_lock_bh(&ar->data_lock);
 741
 742         len = 0;
 743         len += scnprintf(buf + len, buf_len - len,
 744                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 745         len += scnprintf(buf + len, buf_len - len,
 746                          "fw_warm_reset_counter\t\t%d\n",
 747                          ar->stats.fw_warm_reset_counter);
 748         len += scnprintf(buf + len, buf_len - len,
 749                          "fw_cold_reset_counter\t\t%d\n",
 750                          ar->stats.fw_cold_reset_counter);
 751
 752         spin_unlock_bh(&ar->data_lock);
 753
 754         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 755
 756         kfree(buf);
 757
 758         return ret;
 759 }
 760
 761 static const struct file_operations fops_fw_reset_stats = {
 762         .open = simple_open,
 763         .read = ath10k_debug_fw_reset_stats_read,
 764         .owner = THIS_MODULE,
 765         .llseek = default_llseek,
 766 };
 767
 768 /* This is a clean assert crash in firmware. */
 769 static int ath10k_debug_fw_assert(struct ath10k *ar)
 770 {
 771         struct wmi_vdev_install_key_cmd *cmd;
 772         struct sk_buff *skb;
 773
 774         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 775         if (!skb)
 776                 return -ENOMEM;
 777
 778         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 779         memset(cmd, 0, sizeof(*cmd));
 780
 781         /* big enough number so that firmware asserts */
 782         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 783
 784         return ath10k_wmi_cmd_send(ar, skb,
 785                                    ar->wmi.cmd->vdev_install_key_cmdid);
 786 }
 787
 788 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 789                                              char __user *user_buf,
 790                                              size_t count, loff_t *ppos)
 791 {
 792         const char buf[] =
 793                 "To simulate firmware crash write one of the keywords to this file:\n"
 794                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 795                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 796                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
 797                 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
 798
 799         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 800 }
 801
 802 /* Simulate firmware crash:
 803  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 804  * recoverable by warm firmware reset.
 805  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 806  * vdev id. This is hard firmware crash because it is recoverable only by cold
 807  * firmware reset.
 808  */
 809 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 810                                               const char __user *user_buf,
 811                                               size_t count, loff_t *ppos)
 812 {
 813         struct ath10k *ar = file->private_data;
 814         char buf[32];
 815         int ret;
 816
 817         mutex_lock(&ar->conf_mutex);
 818
 819         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 820
 821         /* make sure that buf is null terminated */
 822         buf[sizeof(buf) - 1] = 0;
 823
 824         if (ar->state != ATH10K_STATE_ON &&
 825             ar->state != ATH10K_STATE_RESTARTED) {
 826                 ret = -ENETDOWN;
 827                 goto exit;
 828         }
 829
 830         /* drop the possible '\n' from the end */
 831         if (buf[count - 1] == '\n') {
 832                 buf[count - 1] = 0;
 833                 count--;
 834         }
 835
 836         if (!strcmp(buf, "soft")) {
 837                 ath10k_info(ar, "simulating soft firmware crash\n");
 838                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 839         } else if (!strcmp(buf, "hard")) {
 840                 ath10k_info(ar, "simulating hard firmware crash\n");
 841                 /* 0x7fff is vdev id, and it is always out of range for all
 842                  * firmware variants in order to force a firmware crash.
 843                  */
 844                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 845                                                 ar->wmi.vdev_param->rts_threshold,
 846                                                 0);
 847         } else if (!strcmp(buf, "assert")) {
 848                 ath10k_info(ar, "simulating firmware assert crash\n");
 849                 ret = ath10k_debug_fw_assert(ar);
 850         } else if (!strcmp(buf, "hw-restart")) {
 851                 ath10k_info(ar, "user requested hw restart\n");
 852                 queue_work(ar->workqueue, &ar->restart_work);
 853                 ret = 0;
 854         } else {
 855                 ret = -EINVAL;
 856                 goto exit;
 857         }
 858
 859         if (ret) {
 860                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 861                 goto exit;
 862         }
 863
 864         ret = count;
 865
 866 exit:
 867         mutex_unlock(&ar->conf_mutex);
 868         return ret;
 869 }
 870
 871 static const struct file_operations fops_simulate_fw_crash = {
 872         .read = ath10k_read_simulate_fw_crash,
 873         .write = ath10k_write_simulate_fw_crash,
 874         .open = simple_open,
 875         .owner = THIS_MODULE,
 876         .llseek = default_llseek,
 877 };
 878
 879 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 880                                    size_t count, loff_t *ppos)
 881 {
 882         struct ath10k *ar = file->private_data;
 883         unsigned int len;
 884         char buf[50];
 885
 886         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 887
 888         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 889 }
 890
 891 static const struct file_operations fops_chip_id = {
 892         .read = ath10k_read_chip_id,
 893         .open = simple_open,
 894         .owner = THIS_MODULE,
 895         .llseek = default_llseek,
 896 };
 897
 898 struct ath10k_fw_crash_data *
 899 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 900 {
 901         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 902
 903         lockdep_assert_held(&ar->data_lock);
 904
 905         crash_data->crashed_since_read = true;
 906         uuid_le_gen(&crash_data->uuid);
 907         getnstimeofday(&crash_data->timestamp);
 908
 909         return crash_data;
 910 }
 911 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 912
 913 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 914 {
 915         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 916         struct ath10k_dump_file_data *dump_data;
 917         struct ath10k_tlv_dump_data *dump_tlv;
 918         int hdr_len = sizeof(*dump_data);
 919         unsigned int len, sofar = 0;
 920         unsigned char *buf;
 921
 922         len = hdr_len;
 923         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 924
 925         sofar += hdr_len;
 926
 927         /* This is going to get big when we start dumping FW RAM and such,
 928          * so go ahead and use vmalloc.
 929          */
 930         buf = vzalloc(len);
 931         if (!buf)
 932                 return NULL;
 933
 934         spin_lock_bh(&ar->data_lock);
 935
 936         if (!crash_data->crashed_since_read) {
 937                 spin_unlock_bh(&ar->data_lock);
 938                 vfree(buf);
 939                 return NULL;
 940         }
 941
 942         dump_data = (struct ath10k_dump_file_data *)(buf);
 943         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 944                 sizeof(dump_data->df_magic));
 945         dump_data->len = cpu_to_le32(len);
 946
 947         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 948
 949         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 950         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 951         dump_data->bus_type = cpu_to_le32(0);
 952         dump_data->target_version = cpu_to_le32(ar->target_version);
 953         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 954         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 955         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 956         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 957         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 958         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 959         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 960         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 961         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 962         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 963
 964         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 965                 sizeof(dump_data->fw_ver));
 966
 967         dump_data->kernel_ver_code = 0;
 968         strlcpy(dump_data->kernel_ver, init_utsname()->release,
 969                 sizeof(dump_data->kernel_ver));
 970
 971         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 972         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 973
 974         /* Gather crash-dump */
 975         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 976         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 977         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 978         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 979                sizeof(crash_data->registers));
 980         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 981
 982         ar->debug.fw_crash_data->crashed_since_read = false;
 983
 984         spin_unlock_bh(&ar->data_lock);
 985
 986         return dump_data;
 987 }
 988
 989 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 990 {
 991         struct ath10k *ar = inode->i_private;
 992         struct ath10k_dump_file_data *dump;
 993
 994         dump = ath10k_build_dump_file(ar);
 995         if (!dump)
 996                 return -ENODATA;
 997
 998         file->private_data = dump;
 999
1000         return 0;
1001 }
1002
1003 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
1004                                          char __user *user_buf,
1005                                          size_t count, loff_t *ppos)
1006 {
1007         struct ath10k_dump_file_data *dump_file = file->private_data;
1008
1009         return simple_read_from_buffer(user_buf, count, ppos,
1010                                        dump_file,
1011                                        le32_to_cpu(dump_file->len));
1012 }
1013
1014 static int ath10k_fw_crash_dump_release(struct inode *inode,
1015                                         struct file *file)
1016 {
1017         vfree(file->private_data);
1018
1019         return 0;
1020 }
1021
1022 static const struct file_operations fops_fw_crash_dump = {
1023         .open = ath10k_fw_crash_dump_open,
1024         .read = ath10k_fw_crash_dump_read,
1025         .release = ath10k_fw_crash_dump_release,
1026         .owner = THIS_MODULE,
1027         .llseek = default_llseek,
1028 };
1029
1030 static ssize_t ath10k_reg_addr_read(struct file *file,
1031                                     char __user *user_buf,
1032                                     size_t count, loff_t *ppos)
1033 {
1034         struct ath10k *ar = file->private_data;
1035         u8 buf[32];
1036         unsigned int len = 0;
1037         u32 reg_addr;
1038
1039         mutex_lock(&ar->conf_mutex);
1040         reg_addr = ar->debug.reg_addr;
1041         mutex_unlock(&ar->conf_mutex);
1042
1043         len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
1044
1045         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1046 }
1047
1048 static ssize_t ath10k_reg_addr_write(struct file *file,
1049                                      const char __user *user_buf,
1050                                      size_t count, loff_t *ppos)
1051 {
1052         struct ath10k *ar = file->private_data;
1053         u32 reg_addr;
1054         int ret;
1055
1056         ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
1057         if (ret)
1058                 return ret;
1059
1060         if (!IS_ALIGNED(reg_addr, 4))
1061                 return -EFAULT;
1062
1063         mutex_lock(&ar->conf_mutex);
1064         ar->debug.reg_addr = reg_addr;
1065         mutex_unlock(&ar->conf_mutex);
1066
1067         return count;
1068 }
1069
1070 static const struct file_operations fops_reg_addr = {
1071         .read = ath10k_reg_addr_read,
1072         .write = ath10k_reg_addr_write,
1073         .open = simple_open,
1074         .owner = THIS_MODULE,
1075         .llseek = default_llseek,
1076 };
1077
1078 static ssize_t ath10k_reg_value_read(struct file *file,
1079                                      char __user *user_buf,
1080                                      size_t count, loff_t *ppos)
1081 {
1082         struct ath10k *ar = file->private_data;
1083         u8 buf[48];
1084         unsigned int len;
1085         u32 reg_addr, reg_val;
1086         int ret;
1087
1088         mutex_lock(&ar->conf_mutex);
1089
1090         if (ar->state != ATH10K_STATE_ON &&
1091             ar->state != ATH10K_STATE_UTF) {
1092                 ret = -ENETDOWN;
1093                 goto exit;
1094         }
1095
1096         reg_addr = ar->debug.reg_addr;
1097
1098         reg_val = ath10k_hif_read32(ar, reg_addr);
1099         len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
1100
1101         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1102
1103 exit:
1104         mutex_unlock(&ar->conf_mutex);
1105
1106         return ret;
1107 }
1108
1109 static ssize_t ath10k_reg_value_write(struct file *file,
1110                                       const char __user *user_buf,
1111                                       size_t count, loff_t *ppos)
1112 {
1113         struct ath10k *ar = file->private_data;
1114         u32 reg_addr, reg_val;
1115         int ret;
1116
1117         mutex_lock(&ar->conf_mutex);
1118
1119         if (ar->state != ATH10K_STATE_ON &&
1120             ar->state != ATH10K_STATE_UTF) {
1121                 ret = -ENETDOWN;
1122                 goto exit;
1123         }
1124
1125         reg_addr = ar->debug.reg_addr;
1126
1127         ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
1128         if (ret)
1129                 goto exit;
1130
1131         ath10k_hif_write32(ar, reg_addr, reg_val);
1132
1133         ret = count;
1134
1135 exit:
1136         mutex_unlock(&ar->conf_mutex);
1137
1138         return ret;
1139 }
1140
1141 static const struct file_operations fops_reg_value = {
1142         .read = ath10k_reg_value_read,
1143         .write = ath10k_reg_value_write,
1144         .open = simple_open,
1145         .owner = THIS_MODULE,
1146         .llseek = default_llseek,
1147 };
1148
1149 static ssize_t ath10k_mem_value_read(struct file *file,
1150                                      char __user *user_buf,
1151                                      size_t count, loff_t *ppos)
1152 {
1153         struct ath10k *ar = file->private_data;
1154         u8 *buf;
1155         int ret;
1156
1157         if (*ppos < 0)
1158                 return -EINVAL;
1159
1160         if (!count)
1161                 return 0;
1162
1163         mutex_lock(&ar->conf_mutex);
1164
1165         buf = vmalloc(count);
1166         if (!buf) {
1167                 ret = -ENOMEM;
1168                 goto exit;
1169         }
1170
1171         if (ar->state != ATH10K_STATE_ON &&
1172             ar->state != ATH10K_STATE_UTF) {
1173                 ret = -ENETDOWN;
1174                 goto exit;
1175         }
1176
1177         ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
1178         if (ret) {
1179                 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
1180                             (u32)(*ppos), ret);
1181                 goto exit;
1182         }
1183
1184         ret = copy_to_user(user_buf, buf, count);
1185         if (ret) {
1186                 ret = -EFAULT;
1187                 goto exit;
1188         }
1189
1190         count -= ret;
1191         *ppos += count;
1192         ret = count;
1193
1194 exit:
1195         vfree(buf);
1196         mutex_unlock(&ar->conf_mutex);
1197
1198         return ret;
1199 }
1200
1201 static ssize_t ath10k_mem_value_write(struct file *file,
1202                                       const char __user *user_buf,
1203                                       size_t count, loff_t *ppos)
1204 {
1205         struct ath10k *ar = file->private_data;
1206         u8 *buf;
1207         int ret;
1208
1209         if (*ppos < 0)
1210                 return -EINVAL;
1211
1212         if (!count)
1213                 return 0;
1214
1215         mutex_lock(&ar->conf_mutex);
1216
1217         buf = vmalloc(count);
1218         if (!buf) {
1219                 ret = -ENOMEM;
1220                 goto exit;
1221         }
1222
1223         if (ar->state != ATH10K_STATE_ON &&
1224             ar->state != ATH10K_STATE_UTF) {
1225                 ret = -ENETDOWN;
1226                 goto exit;
1227         }
1228
1229         ret = copy_from_user(buf, user_buf, count);
1230         if (ret) {
1231                 ret = -EFAULT;
1232                 goto exit;
1233         }
1234
1235         ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
1236         if (ret) {
1237                 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
1238                             (u32)(*ppos), ret);
1239                 goto exit;
1240         }
1241
1242         *ppos += count;
1243         ret = count;
1244
1245 exit:
1246         vfree(buf);
1247         mutex_unlock(&ar->conf_mutex);
1248
1249         return ret;
1250 }
1251
1252 static const struct file_operations fops_mem_value = {
1253         .read = ath10k_mem_value_read,
1254         .write = ath10k_mem_value_write,
1255         .open = simple_open,
1256         .owner = THIS_MODULE,
1257         .llseek = default_llseek,
1258 };
1259
1260 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
1261 {
1262         u64 cookie;
1263         int ret;
1264
1265         lockdep_assert_held(&ar->conf_mutex);
1266
1267         if (ar->debug.htt_stats_mask == 0)
1268                 /* htt stats are disabled */
1269                 return 0;
1270
1271         if (ar->state != ATH10K_STATE_ON)
1272                 return 0;
1273
1274         cookie = get_jiffies_64();
1275
1276         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
1277                                        cookie);
1278         if (ret) {
1279                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
1280                 return ret;
1281         }
1282
1283         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
1284                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
1285
1286         return 0;
1287 }
1288
1289 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
1290 {
1291         struct ath10k *ar = container_of(work, struct ath10k,
1292                                          debug.htt_stats_dwork.work);
1293
1294         mutex_lock(&ar->conf_mutex);
1295
1296         ath10k_debug_htt_stats_req(ar);
1297
1298         mutex_unlock(&ar->conf_mutex);
1299 }
1300
1301 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
1302                                           char __user *user_buf,
1303                                           size_t count, loff_t *ppos)
1304 {
1305         struct ath10k *ar = file->private_data;
1306         char buf[32];
1307         unsigned int len;
1308
1309         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
1310
1311         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1312 }
1313
1314 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
1315                                            const char __user *user_buf,
1316                                            size_t count, loff_t *ppos)
1317 {
1318         struct ath10k *ar = file->private_data;
1319         unsigned long mask;
1320         int ret;
1321
1322         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1323         if (ret)
1324                 return ret;
1325
1326         /* max 8 bit masks (for now) */
1327         if (mask > 0xff)
1328                 return -E2BIG;
1329
1330         mutex_lock(&ar->conf_mutex);
1331
1332         ar->debug.htt_stats_mask = mask;
1333
1334         ret = ath10k_debug_htt_stats_req(ar);
1335         if (ret)
1336                 goto out;
1337
1338         ret = count;
1339
1340 out:
1341         mutex_unlock(&ar->conf_mutex);
1342
1343         return ret;
1344 }
1345
1346 static const struct file_operations fops_htt_stats_mask = {
1347         .read = ath10k_read_htt_stats_mask,
1348         .write = ath10k_write_htt_stats_mask,
1349         .open = simple_open,
1350         .owner = THIS_MODULE,
1351         .llseek = default_llseek,
1352 };
1353
1354 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
1355                                                char __user *user_buf,
1356                                                size_t count, loff_t *ppos)
1357 {
1358         struct ath10k *ar = file->private_data;
1359         char buf[64];
1360         u8 amsdu = 3, ampdu = 64;
1361         unsigned int len;
1362
1363         mutex_lock(&ar->conf_mutex);
1364
1365         if (ar->debug.htt_max_amsdu)
1366                 amsdu = ar->debug.htt_max_amsdu;
1367
1368         if (ar->debug.htt_max_ampdu)
1369                 ampdu = ar->debug.htt_max_ampdu;
1370
1371         mutex_unlock(&ar->conf_mutex);
1372
1373         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
1374
1375         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1376 }
1377
1378 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
1379                                                 const char __user *user_buf,
1380                                                 size_t count, loff_t *ppos)
1381 {
1382         struct ath10k *ar = file->private_data;
1383         int res;
1384         char buf[64];
1385         unsigned int amsdu, ampdu;
1386
1387         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1388
1389         /* make sure that buf is null terminated */
1390         buf[sizeof(buf) - 1] = 0;
1391
1392         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
1393
1394         if (res != 2)
1395                 return -EINVAL;
1396
1397         mutex_lock(&ar->conf_mutex);
1398
1399         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1400         if (res)
1401                 goto out;
1402
1403         res = count;
1404         ar->debug.htt_max_amsdu = amsdu;
1405         ar->debug.htt_max_ampdu = ampdu;
1406
1407 out:
1408         mutex_unlock(&ar->conf_mutex);
1409         return res;
1410 }
1411
1412 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1413         .read = ath10k_read_htt_max_amsdu_ampdu,
1414         .write = ath10k_write_htt_max_amsdu_ampdu,
1415         .open = simple_open,
1416         .owner = THIS_MODULE,
1417         .llseek = default_llseek,
1418 };
1419
1420 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1421                                      char __user *user_buf,
1422                                      size_t count, loff_t *ppos)
1423 {
1424         struct ath10k *ar = file->private_data;
1425         unsigned int len;
1426         char buf[64];
1427
1428         len = scnprintf(buf, sizeof(buf), "0x%08x %u\n",
1429                         ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1430
1431         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1432 }
1433
1434 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1435                                       const char __user *user_buf,
1436                                       size_t count, loff_t *ppos)
1437 {
1438         struct ath10k *ar = file->private_data;
1439         int ret;
1440         char buf[64];
1441         unsigned int log_level, mask;
1442
1443         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1444
1445         /* make sure that buf is null terminated */
1446         buf[sizeof(buf) - 1] = 0;
1447
1448         ret = sscanf(buf, "%x %u", &mask, &log_level);
1449
1450         if (!ret)
1451                 return -EINVAL;
1452
1453         if (ret == 1)
1454                 /* default if user did not specify */
1455                 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1456
1457         mutex_lock(&ar->conf_mutex);
1458
1459         ar->debug.fw_dbglog_mask = mask;
1460         ar->debug.fw_dbglog_level = log_level;
1461
1462         if (ar->state == ATH10K_STATE_ON) {
1463                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1464                                             ar->debug.fw_dbglog_level);
1465                 if (ret) {
1466                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1467                                     ret);
1468                         goto exit;
1469                 }
1470         }
1471
1472         ret = count;
1473
1474 exit:
1475         mutex_unlock(&ar->conf_mutex);
1476
1477         return ret;
1478 }
1479
1480 /* TODO:  Would be nice to always support ethtool stats, would need to
1481  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1482  * struct available..
1483  */
1484
1485 /* This generally cooresponds to the debugfs fw_stats file */
1486 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1487         "tx_pkts_nic",
1488         "tx_bytes_nic",
1489         "rx_pkts_nic",
1490         "rx_bytes_nic",
1491         "d_noise_floor",
1492         "d_cycle_count",
1493         "d_phy_error",
1494         "d_rts_bad",
1495         "d_rts_good",
1496         "d_tx_power", /* in .5 dbM I think */
1497         "d_rx_crc_err", /* fcs_bad */
1498         "d_no_beacon",
1499         "d_tx_mpdus_queued",
1500         "d_tx_msdu_queued",
1501         "d_tx_msdu_dropped",
1502         "d_local_enqued",
1503         "d_local_freed",
1504         "d_tx_ppdu_hw_queued",
1505         "d_tx_ppdu_reaped",
1506         "d_tx_fifo_underrun",
1507         "d_tx_ppdu_abort",
1508         "d_tx_mpdu_requed",
1509         "d_tx_excessive_retries",
1510         "d_tx_hw_rate",
1511         "d_tx_dropped_sw_retries",
1512         "d_tx_illegal_rate",
1513         "d_tx_continuous_xretries",
1514         "d_tx_timeout",
1515         "d_tx_mpdu_txop_limit",
1516         "d_pdev_resets",
1517         "d_rx_mid_ppdu_route_change",
1518         "d_rx_status",
1519         "d_rx_extra_frags_ring0",
1520         "d_rx_extra_frags_ring1",
1521         "d_rx_extra_frags_ring2",
1522         "d_rx_extra_frags_ring3",
1523         "d_rx_msdu_htt",
1524         "d_rx_mpdu_htt",
1525         "d_rx_msdu_stack",
1526         "d_rx_mpdu_stack",
1527         "d_rx_phy_err",
1528         "d_rx_phy_err_drops",
1529         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1530         "d_fw_crash_count",
1531         "d_fw_warm_reset_count",
1532         "d_fw_cold_reset_count",
1533 };
1534
1535 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1536
1537 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1538                                  struct ieee80211_vif *vif,
1539                                  u32 sset, u8 *data)
1540 {
1541         if (sset == ETH_SS_STATS)
1542                 memcpy(data, *ath10k_gstrings_stats,
1543                        sizeof(ath10k_gstrings_stats));
1544 }
1545
1546 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1547                                    struct ieee80211_vif *vif, int sset)
1548 {
1549         if (sset == ETH_SS_STATS)
1550                 return ATH10K_SSTATS_LEN;
1551
1552         return 0;
1553 }
1554
1555 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1556                                struct ieee80211_vif *vif,
1557                                struct ethtool_stats *stats, u64 *data)
1558 {
1559         struct ath10k *ar = hw->priv;
1560         static const struct ath10k_fw_stats_pdev zero_stats = {};
1561         const struct ath10k_fw_stats_pdev *pdev_stats;
1562         int i = 0, ret;
1563
1564         mutex_lock(&ar->conf_mutex);
1565
1566         if (ar->state == ATH10K_STATE_ON) {
1567                 ret = ath10k_debug_fw_stats_request(ar);
1568                 if (ret) {
1569                         /* just print a warning and try to use older results */
1570                         ath10k_warn(ar,
1571                                     "failed to get fw stats for ethtool: %d\n",
1572                                     ret);
1573                 }
1574         }
1575
1576         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1577                                               struct ath10k_fw_stats_pdev,
1578                                               list);
1579         if (!pdev_stats) {
1580                 /* no results available so just return zeroes */
1581                 pdev_stats = &zero_stats;
1582         }
1583
1584         spin_lock_bh(&ar->data_lock);
1585
1586         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1587         data[i++] = 0; /* tx bytes */
1588         data[i++] = pdev_stats->htt_mpdus;
1589         data[i++] = 0; /* rx bytes */
1590         data[i++] = pdev_stats->ch_noise_floor;
1591         data[i++] = pdev_stats->cycle_count;
1592         data[i++] = pdev_stats->phy_err_count;
1593         data[i++] = pdev_stats->rts_bad;
1594         data[i++] = pdev_stats->rts_good;
1595         data[i++] = pdev_stats->chan_tx_power;
1596         data[i++] = pdev_stats->fcs_bad;
1597         data[i++] = pdev_stats->no_beacons;
1598         data[i++] = pdev_stats->mpdu_enqued;
1599         data[i++] = pdev_stats->msdu_enqued;
1600         data[i++] = pdev_stats->wmm_drop;
1601         data[i++] = pdev_stats->local_enqued;
1602         data[i++] = pdev_stats->local_freed;
1603         data[i++] = pdev_stats->hw_queued;
1604         data[i++] = pdev_stats->hw_reaped;
1605         data[i++] = pdev_stats->underrun;
1606         data[i++] = pdev_stats->tx_abort;
1607         data[i++] = pdev_stats->mpdus_requed;
1608         data[i++] = pdev_stats->tx_ko;
1609         data[i++] = pdev_stats->data_rc;
1610         data[i++] = pdev_stats->sw_retry_failure;
1611         data[i++] = pdev_stats->illgl_rate_phy_err;
1612         data[i++] = pdev_stats->pdev_cont_xretry;
1613         data[i++] = pdev_stats->pdev_tx_timeout;
1614         data[i++] = pdev_stats->txop_ovf;
1615         data[i++] = pdev_stats->pdev_resets;
1616         data[i++] = pdev_stats->mid_ppdu_route_change;
1617         data[i++] = pdev_stats->status_rcvd;
1618         data[i++] = pdev_stats->r0_frags;
1619         data[i++] = pdev_stats->r1_frags;
1620         data[i++] = pdev_stats->r2_frags;
1621         data[i++] = pdev_stats->r3_frags;
1622         data[i++] = pdev_stats->htt_msdus;
1623         data[i++] = pdev_stats->htt_mpdus;
1624         data[i++] = pdev_stats->loc_msdus;
1625         data[i++] = pdev_stats->loc_mpdus;
1626         data[i++] = pdev_stats->phy_errs;
1627         data[i++] = pdev_stats->phy_err_drop;
1628         data[i++] = pdev_stats->mpdu_errs;
1629         data[i++] = ar->stats.fw_crash_counter;
1630         data[i++] = ar->stats.fw_warm_reset_counter;
1631         data[i++] = ar->stats.fw_cold_reset_counter;
1632
1633         spin_unlock_bh(&ar->data_lock);
1634
1635         mutex_unlock(&ar->conf_mutex);
1636
1637         WARN_ON(i != ATH10K_SSTATS_LEN);
1638 }
1639
1640 static const struct file_operations fops_fw_dbglog = {
1641         .read = ath10k_read_fw_dbglog,
1642         .write = ath10k_write_fw_dbglog,
1643         .open = simple_open,
1644         .owner = THIS_MODULE,
1645         .llseek = default_llseek,
1646 };
1647
1648 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1649 {
1650         struct ath10k *ar = inode->i_private;
1651         void *buf;
1652         u32 hi_addr;
1653         __le32 addr;
1654         int ret;
1655
1656         mutex_lock(&ar->conf_mutex);
1657
1658         if (ar->state != ATH10K_STATE_ON &&
1659             ar->state != ATH10K_STATE_UTF) {
1660                 ret = -ENETDOWN;
1661                 goto err;
1662         }
1663
1664         buf = vmalloc(QCA988X_CAL_DATA_LEN);
1665         if (!buf) {
1666                 ret = -ENOMEM;
1667                 goto err;
1668         }
1669
1670         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1671
1672         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1673         if (ret) {
1674                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret);
1675                 goto err_vfree;
1676         }
1677
1678         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf,
1679                                    QCA988X_CAL_DATA_LEN);
1680         if (ret) {
1681                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1682                 goto err_vfree;
1683         }
1684
1685         file->private_data = buf;
1686
1687         mutex_unlock(&ar->conf_mutex);
1688
1689         return 0;
1690
1691 err_vfree:
1692         vfree(buf);
1693
1694 err:
1695         mutex_unlock(&ar->conf_mutex);
1696
1697         return ret;
1698 }
1699
1700 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1701                                           char __user *user_buf,
1702                                           size_t count, loff_t *ppos)
1703 {
1704         void *buf = file->private_data;
1705
1706         return simple_read_from_buffer(user_buf, count, ppos,
1707                                        buf, QCA988X_CAL_DATA_LEN);
1708 }
1709
1710 static int ath10k_debug_cal_data_release(struct inode *inode,
1711                                          struct file *file)
1712 {
1713         vfree(file->private_data);
1714
1715         return 0;
1716 }
1717
1718 static ssize_t ath10k_write_ani_enable(struct file *file,
1719                                        const char __user *user_buf,
1720                                        size_t count, loff_t *ppos)
1721 {
1722         struct ath10k *ar = file->private_data;
1723         int ret;
1724         u8 enable;
1725
1726         if (kstrtou8_from_user(user_buf, count, 0, &enable))
1727                 return -EINVAL;
1728
1729         mutex_lock(&ar->conf_mutex);
1730
1731         if (ar->ani_enabled == enable) {
1732                 ret = count;
1733                 goto exit;
1734         }
1735
1736         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1737                                         enable);
1738         if (ret) {
1739                 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1740                 goto exit;
1741         }
1742         ar->ani_enabled = enable;
1743
1744         ret = count;
1745
1746 exit:
1747         mutex_unlock(&ar->conf_mutex);
1748
1749         return ret;
1750 }
1751
1752 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1753                                       size_t count, loff_t *ppos)
1754 {
1755         struct ath10k *ar = file->private_data;
1756         int len = 0;
1757         char buf[32];
1758
1759         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1760                         ar->ani_enabled);
1761
1762         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1763 }
1764
1765 static const struct file_operations fops_ani_enable = {
1766         .read = ath10k_read_ani_enable,
1767         .write = ath10k_write_ani_enable,
1768         .open = simple_open,
1769         .owner = THIS_MODULE,
1770         .llseek = default_llseek,
1771 };
1772
1773 static const struct file_operations fops_cal_data = {
1774         .open = ath10k_debug_cal_data_open,
1775         .read = ath10k_debug_cal_data_read,
1776         .release = ath10k_debug_cal_data_release,
1777         .owner = THIS_MODULE,
1778         .llseek = default_llseek,
1779 };
1780
1781 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1782                                          char __user *user_buf,
1783                                          size_t count, loff_t *ppos)
1784 {
1785         struct ath10k *ar = file->private_data;
1786         unsigned int len;
1787         char buf[32];
1788
1789         len = scnprintf(buf, sizeof(buf), "%d\n",
1790                         ar->debug.nf_cal_period);
1791
1792         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1793 }
1794
1795 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1796                                           const char __user *user_buf,
1797                                           size_t count, loff_t *ppos)
1798 {
1799         struct ath10k *ar = file->private_data;
1800         unsigned long period;
1801         int ret;
1802
1803         ret = kstrtoul_from_user(user_buf, count, 0, &period);
1804         if (ret)
1805                 return ret;
1806
1807         if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1808                 return -EINVAL;
1809
1810         /* there's no way to switch back to the firmware default */
1811         if (period == 0)
1812                 return -EINVAL;
1813
1814         mutex_lock(&ar->conf_mutex);
1815
1816         ar->debug.nf_cal_period = period;
1817
1818         if (ar->state != ATH10K_STATE_ON) {
1819                 /* firmware is not running, nothing else to do */
1820                 ret = count;
1821                 goto exit;
1822         }
1823
1824         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1825                                         ar->debug.nf_cal_period);
1826         if (ret) {
1827                 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1828                             ret);
1829                 goto exit;
1830         }
1831
1832         ret = count;
1833
1834 exit:
1835         mutex_unlock(&ar->conf_mutex);
1836
1837         return ret;
1838 }
1839
1840 static const struct file_operations fops_nf_cal_period = {
1841         .read = ath10k_read_nf_cal_period,
1842         .write = ath10k_write_nf_cal_period,
1843         .open = simple_open,
1844         .owner = THIS_MODULE,
1845         .llseek = default_llseek,
1846 };
1847
1848 int ath10k_debug_start(struct ath10k *ar)
1849 {
1850         int ret;
1851
1852         lockdep_assert_held(&ar->conf_mutex);
1853
1854         ret = ath10k_debug_htt_stats_req(ar);
1855         if (ret)
1856                 /* continue normally anyway, this isn't serious */
1857                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1858                             ret);
1859
1860         if (ar->debug.fw_dbglog_mask) {
1861                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1862                                             ATH10K_DBGLOG_LEVEL_WARN);
1863                 if (ret)
1864                         /* not serious */
1865                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1866                                     ret);
1867         }
1868
1869         if (ar->debug.pktlog_filter) {
1870                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1871                                                     ar->debug.pktlog_filter);
1872                 if (ret)
1873                         /* not serious */
1874                         ath10k_warn(ar,
1875                                     "failed to enable pktlog filter %x: %d\n",
1876                                     ar->debug.pktlog_filter, ret);
1877         } else {
1878                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1879                 if (ret)
1880                         /* not serious */
1881                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1882         }
1883
1884         if (ar->debug.nf_cal_period) {
1885                 ret = ath10k_wmi_pdev_set_param(ar,
1886                                                 ar->wmi.pdev_param->cal_period,
1887                                                 ar->debug.nf_cal_period);
1888                 if (ret)
1889                         /* not serious */
1890                         ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1891                                     ret);
1892         }
1893
1894         return ret;
1895 }
1896
1897 void ath10k_debug_stop(struct ath10k *ar)
1898 {
1899         lockdep_assert_held(&ar->conf_mutex);
1900
1901         /* Must not use _sync to avoid deadlock, we do that in
1902          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1903          * warning from del_timer(). */
1904         if (ar->debug.htt_stats_mask != 0)
1905                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1906
1907         ar->debug.htt_max_amsdu = 0;
1908         ar->debug.htt_max_ampdu = 0;
1909
1910         ath10k_wmi_pdev_pktlog_disable(ar);
1911 }
1912
1913 static ssize_t ath10k_write_simulate_radar(struct file *file,
1914                                            const char __user *user_buf,
1915                                            size_t count, loff_t *ppos)
1916 {
1917         struct ath10k *ar = file->private_data;
1918
1919         ieee80211_radar_detected(ar->hw);
1920
1921         return count;
1922 }
1923
1924 static const struct file_operations fops_simulate_radar = {
1925         .write = ath10k_write_simulate_radar,
1926         .open = simple_open,
1927         .owner = THIS_MODULE,
1928         .llseek = default_llseek,
1929 };
1930
1931 #define ATH10K_DFS_STAT(s, p) (\
1932         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1933                          ar->debug.dfs_stats.p))
1934
1935 #define ATH10K_DFS_POOL_STAT(s, p) (\
1936         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1937                          ar->debug.dfs_pool_stats.p))
1938
1939 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1940                                      size_t count, loff_t *ppos)
1941 {
1942         int retval = 0, len = 0;
1943         const int size = 8000;
1944         struct ath10k *ar = file->private_data;
1945         char *buf;
1946
1947         buf = kzalloc(size, GFP_KERNEL);
1948         if (buf == NULL)
1949                 return -ENOMEM;
1950
1951         if (!ar->dfs_detector) {
1952                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1953                 goto exit;
1954         }
1955
1956         ar->debug.dfs_pool_stats =
1957                         ar->dfs_detector->get_stats(ar->dfs_detector);
1958
1959         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1960
1961         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1962         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1963         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1964         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1965         ATH10K_DFS_STAT("Radars detected", radar_detected);
1966
1967         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1968         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1969         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1970         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1971         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1972         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1973         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1974         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1975
1976 exit:
1977         if (len > size)
1978                 len = size;
1979
1980         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1981         kfree(buf);
1982
1983         return retval;
1984 }
1985
1986 static const struct file_operations fops_dfs_stats = {
1987         .read = ath10k_read_dfs_stats,
1988         .open = simple_open,
1989         .owner = THIS_MODULE,
1990         .llseek = default_llseek,
1991 };
1992
1993 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1994                                           const char __user *ubuf,
1995                                           size_t count, loff_t *ppos)
1996 {
1997         struct ath10k *ar = file->private_data;
1998         u32 filter;
1999         int ret;
2000
2001         if (kstrtouint_from_user(ubuf, count, 0, &filter))
2002                 return -EINVAL;
2003
2004         mutex_lock(&ar->conf_mutex);
2005
2006         if (ar->state != ATH10K_STATE_ON) {
2007                 ar->debug.pktlog_filter = filter;
2008                 ret = count;
2009                 goto out;
2010         }
2011
2012         if (filter && (filter != ar->debug.pktlog_filter)) {
2013                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
2014                 if (ret) {
2015                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
2016                                     ar->debug.pktlog_filter, ret);
2017                         goto out;
2018                 }
2019         } else {
2020                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
2021                 if (ret) {
2022                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
2023                         goto out;
2024                 }
2025         }
2026
2027         ar->debug.pktlog_filter = filter;
2028         ret = count;
2029
2030 out:
2031         mutex_unlock(&ar->conf_mutex);
2032         return ret;
2033 }
2034
2035 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
2036                                          size_t count, loff_t *ppos)
2037 {
2038         char buf[32];
2039         struct ath10k *ar = file->private_data;
2040         int len = 0;
2041
2042         mutex_lock(&ar->conf_mutex);
2043         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
2044                         ar->debug.pktlog_filter);
2045         mutex_unlock(&ar->conf_mutex);
2046
2047         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2048 }
2049
2050 static const struct file_operations fops_pktlog_filter = {
2051         .read = ath10k_read_pktlog_filter,
2052         .write = ath10k_write_pktlog_filter,
2053         .open = simple_open
2054 };
2055
2056 static ssize_t ath10k_write_quiet_period(struct file *file,
2057                                          const char __user *ubuf,
2058                                          size_t count, loff_t *ppos)
2059 {
2060         struct ath10k *ar = file->private_data;
2061         u32 period;
2062
2063         if (kstrtouint_from_user(ubuf, count, 0, &period))
2064                 return -EINVAL;
2065
2066         if (period < ATH10K_QUIET_PERIOD_MIN) {
2067                 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
2068                             period);
2069                 return -EINVAL;
2070         }
2071         mutex_lock(&ar->conf_mutex);
2072         ar->thermal.quiet_period = period;
2073         ath10k_thermal_set_throttling(ar);
2074         mutex_unlock(&ar->conf_mutex);
2075
2076         return count;
2077 }
2078
2079 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
2080                                         size_t count, loff_t *ppos)
2081 {
2082         char buf[32];
2083         struct ath10k *ar = file->private_data;
2084         int len = 0;
2085
2086         mutex_lock(&ar->conf_mutex);
2087         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2088                         ar->thermal.quiet_period);
2089         mutex_unlock(&ar->conf_mutex);
2090
2091         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2092 }
2093
2094 static const struct file_operations fops_quiet_period = {
2095         .read = ath10k_read_quiet_period,
2096         .write = ath10k_write_quiet_period,
2097         .open = simple_open
2098 };
2099
2100 int ath10k_debug_create(struct ath10k *ar)
2101 {
2102         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
2103         if (!ar->debug.fw_crash_data)
2104                 return -ENOMEM;
2105
2106         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2107         INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2108         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2109
2110         return 0;
2111 }
2112
2113 void ath10k_debug_destroy(struct ath10k *ar)
2114 {
2115         vfree(ar->debug.fw_crash_data);
2116         ar->debug.fw_crash_data = NULL;
2117
2118         ath10k_debug_fw_stats_reset(ar);
2119 }
2120
2121 int ath10k_debug_register(struct ath10k *ar)
2122 {
2123         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2124                                                    ar->hw->wiphy->debugfsdir);
2125         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2126                 if (IS_ERR(ar->debug.debugfs_phy))
2127                         return PTR_ERR(ar->debug.debugfs_phy);
2128
2129                 return -ENOMEM;
2130         }
2131
2132         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2133                           ath10k_debug_htt_stats_dwork);
2134
2135         init_completion(&ar->debug.fw_stats_complete);
2136
2137         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
2138                             &fops_fw_stats);
2139
2140         debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy,
2141                             ar, &fops_fw_reset_stats);
2142
2143         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
2144                             &fops_wmi_services);
2145
2146         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
2147                             ar, &fops_simulate_fw_crash);
2148
2149         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
2150                             ar, &fops_fw_crash_dump);
2151
2152         debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR,
2153                             ar->debug.debugfs_phy, ar, &fops_reg_addr);
2154
2155         debugfs_create_file("reg_value", S_IRUSR | S_IWUSR,
2156                             ar->debug.debugfs_phy, ar, &fops_reg_value);
2157
2158         debugfs_create_file("mem_value", S_IRUSR | S_IWUSR,
2159                             ar->debug.debugfs_phy, ar, &fops_mem_value);
2160
2161         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
2162                             ar, &fops_chip_id);
2163
2164         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
2165                             ar, &fops_htt_stats_mask);
2166
2167         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
2168                             ar->debug.debugfs_phy, ar,
2169                             &fops_htt_max_amsdu_ampdu);
2170
2171         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
2172                             ar, &fops_fw_dbglog);
2173
2174         debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
2175                             ar, &fops_cal_data);
2176
2177         debugfs_create_file("ani_enable", S_IRUSR | S_IWUSR,
2178                             ar->debug.debugfs_phy, ar, &fops_ani_enable);
2179
2180         debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR,
2181                             ar->debug.debugfs_phy, ar, &fops_nf_cal_period);
2182
2183         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
2184                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
2185                                     ar->debug.debugfs_phy, ar,
2186                                     &fops_simulate_radar);
2187
2188                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
2189                                     ar->debug.debugfs_phy,
2190                                     &ar->dfs_block_radar_events);
2191
2192                 debugfs_create_file("dfs_stats", S_IRUSR,
2193                                     ar->debug.debugfs_phy, ar,
2194                                     &fops_dfs_stats);
2195         }
2196
2197         debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
2198                             ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
2199
2200         debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR,
2201                             ar->debug.debugfs_phy, ar, &fops_quiet_period);
2202
2203         return 0;
2204 }
2205
2206 void ath10k_debug_unregister(struct ath10k *ar)
2207 {
2208         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2209 }
2210
2211 #endif /* CONFIG_ATH10K_DEBUGFS */
2212
2213 #ifdef CONFIG_ATH10K_DEBUG
2214 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2215                 const char *fmt, ...)
2216 {
2217         struct va_format vaf;
2218         va_list args;
2219
2220         va_start(args, fmt);
2221
2222         vaf.fmt = fmt;
2223         vaf.va = &args;
2224
2225         if (ath10k_debug_mask & mask)
2226                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2227
2228         trace_ath10k_log_dbg(ar, mask, &vaf);
2229
2230         va_end(args);
2231 }
2232 EXPORT_SYMBOL(ath10k_dbg);
2233
2234 void ath10k_dbg_dump(struct ath10k *ar,
2235                      enum ath10k_debug_mask mask,
2236                      const char *msg, const char *prefix,
2237                      const void *buf, size_t len)
2238 {
2239         char linebuf[256];
2240         unsigned int linebuflen;
2241         const void *ptr;
2242
2243         if (ath10k_debug_mask & mask) {
2244                 if (msg)
2245                         ath10k_dbg(ar, mask, "%s\n", msg);
2246
2247                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2248                         linebuflen = 0;
2249                         linebuflen += scnprintf(linebuf + linebuflen,
2250                                                 sizeof(linebuf) - linebuflen,
2251                                                 "%s%08x: ",
2252                                                 (prefix ? prefix : ""),
2253                                                 (unsigned int)(ptr - buf));
2254                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2255                                            linebuf + linebuflen,
2256                                            sizeof(linebuf) - linebuflen, true);
2257                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2258                 }
2259         }
2260
2261         /* tracing code doesn't like null strings :/ */
2262         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2263                                   buf, len);
2264 }
2265 EXPORT_SYMBOL(ath10k_dbg_dump);
2266
2267 #endif /* CONFIG_ATH10K_DEBUG */