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/version.h>
  21 #include <linux/vermagic.h>
  22 #include <linux/vmalloc.h>
  23
  24 #include "core.h"
  25 #include "debug.h"
  26 #include "hif.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         ath10k_info(ar, "%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d wmi %d.%d.%d.%d cal %s\n",
 128                     ar->hw_params.name,
 129                     ar->target_version,
 130                     ar->chip_id,
 131                     ar->hw->wiphy->fw_version,
 132                     ar->fw_api,
 133                     ar->htt.target_version_major,
 134                     ar->htt.target_version_minor,
 135                     ar->fw_version_major,
 136                     ar->fw_version_minor,
 137                     ar->fw_version_release,
 138                     ar->fw_version_build,
 139                     ath10k_cal_mode_str(ar->cal_mode));
 140         ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n",
 141                     config_enabled(CONFIG_ATH10K_DEBUG),
 142                     config_enabled(CONFIG_ATH10K_DEBUGFS),
 143                     config_enabled(CONFIG_ATH10K_TRACING),
 144                     config_enabled(CONFIG_ATH10K_DFS_CERTIFIED),
 145                     config_enabled(CONFIG_NL80211_TESTMODE));
 146 }
 147 EXPORT_SYMBOL(ath10k_print_driver_info);
 148
 149 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 150 {
 151         struct va_format vaf = {
 152                 .fmt = fmt,
 153         };
 154         va_list args;
 155
 156         va_start(args, fmt);
 157         vaf.va = &args;
 158         dev_err(ar->dev, "%pV", &vaf);
 159         trace_ath10k_log_err(ar, &vaf);
 160         va_end(args);
 161 }
 162 EXPORT_SYMBOL(ath10k_err);
 163
 164 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 165 {
 166         struct va_format vaf = {
 167                 .fmt = fmt,
 168         };
 169         va_list args;
 170
 171         va_start(args, fmt);
 172         vaf.va = &args;
 173         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 174         trace_ath10k_log_warn(ar, &vaf);
 175
 176         va_end(args);
 177 }
 178 EXPORT_SYMBOL(ath10k_warn);
 179
 180 #ifdef CONFIG_ATH10K_DEBUGFS
 181
 182 void ath10k_debug_read_service_map(struct ath10k *ar,
 183                                    const void *service_map,
 184                                    size_t map_size)
 185 {
 186         memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
 187 }
 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         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 211                 enabled = test_bit(i, ar->debug.wmi_service_bitmap);
 212                 name = wmi_service_name(i);
 213
 214                 if (!name) {
 215                         if (enabled)
 216                                 len += scnprintf(buf + len, buf_len - len,
 217                                                  "%-40s %s (bit %d)\n",
 218                                                  "unknown", "enabled", i);
 219
 220                         continue;
 221                 }
 222
 223                 len += scnprintf(buf + len, buf_len - len,
 224                                  "%-40s %s\n",
 225                                  name, enabled ? "enabled" : "-");
 226         }
 227
 228         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 229
 230         mutex_unlock(&ar->conf_mutex);
 231
 232         kfree(buf);
 233         return ret_cnt;
 234 }
 235
 236 static const struct file_operations fops_wmi_services = {
 237         .read = ath10k_read_wmi_services,
 238         .open = simple_open,
 239         .owner = THIS_MODULE,
 240         .llseek = default_llseek,
 241 };
 242
 243 static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head)
 244 {
 245         struct ath10k_fw_stats_pdev *i, *tmp;
 246
 247         list_for_each_entry_safe(i, tmp, head, list) {
 248                 list_del(&i->list);
 249                 kfree(i);
 250         }
 251 }
 252
 253 static void ath10k_debug_fw_stats_peers_free(struct list_head *head)
 254 {
 255         struct ath10k_fw_stats_peer *i, *tmp;
 256
 257         list_for_each_entry_safe(i, tmp, head, list) {
 258                 list_del(&i->list);
 259                 kfree(i);
 260         }
 261 }
 262
 263 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 264 {
 265         spin_lock_bh(&ar->data_lock);
 266         ar->debug.fw_stats_done = false;
 267         ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 268         ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 269         spin_unlock_bh(&ar->data_lock);
 270 }
 271
 272 static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head)
 273 {
 274         struct ath10k_fw_stats_peer *i;
 275         size_t num = 0;
 276
 277         list_for_each_entry(i, head, list)
 278                 ++num;
 279
 280         return num;
 281 }
 282
 283 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 284 {
 285         struct ath10k_fw_stats stats = {};
 286         bool is_start, is_started, is_end;
 287         size_t num_peers;
 288         int ret;
 289
 290         INIT_LIST_HEAD(&stats.pdevs);
 291         INIT_LIST_HEAD(&stats.peers);
 292
 293         spin_lock_bh(&ar->data_lock);
 294         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 295         if (ret) {
 296                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 297                 goto unlock;
 298         }
 299
 300         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
 301          * splits the stats data and delivers it in a ping-pong fashion of
 302          * request cmd-update event.
 303          *
 304          * However there is no explicit end-of-data. Instead start-of-data is
 305          * used as an implicit one. This works as follows:
 306          *  a) discard stat update events until one with pdev stats is
 307          *     delivered - this skips session started at end of (b)
 308          *  b) consume stat update events until another one with pdev stats is
 309          *     delivered which is treated as end-of-data and is itself discarded
 310          */
 311
 312         if (ar->debug.fw_stats_done) {
 313                 ath10k_warn(ar, "received unsolicited stats update event\n");
 314                 goto free;
 315         }
 316
 317         num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers);
 318         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 319                     !list_empty(&stats.pdevs));
 320         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 321                   !list_empty(&stats.pdevs));
 322
 323         if (is_start)
 324                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 325
 326         if (is_end)
 327                 ar->debug.fw_stats_done = true;
 328
 329         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 330
 331         if (is_started && !is_end) {
 332                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 333                         /* Although this is unlikely impose a sane limit to
 334                          * prevent firmware from DoS-ing the host.
 335                          */
 336                         ath10k_warn(ar, "dropping fw peer stats\n");
 337                         goto free;
 338                 }
 339
 340                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 341         }
 342
 343         complete(&ar->debug.fw_stats_complete);
 344
 345 free:
 346         /* In some cases lists have been spliced and cleared. Free up
 347          * resources if that is not the case.
 348          */
 349         ath10k_debug_fw_stats_pdevs_free(&stats.pdevs);
 350         ath10k_debug_fw_stats_peers_free(&stats.peers);
 351
 352 unlock:
 353         spin_unlock_bh(&ar->data_lock);
 354 }
 355
 356 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 357 {
 358         unsigned long timeout;
 359         int ret;
 360
 361         lockdep_assert_held(&ar->conf_mutex);
 362
 363         timeout = jiffies + msecs_to_jiffies(1*HZ);
 364
 365         ath10k_debug_fw_stats_reset(ar);
 366
 367         for (;;) {
 368                 if (time_after(jiffies, timeout))
 369                         return -ETIMEDOUT;
 370
 371                 reinit_completion(&ar->debug.fw_stats_complete);
 372
 373                 ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
 374                 if (ret) {
 375                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
 376                         return ret;
 377                 }
 378
 379                 ret = wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 380                                                   1*HZ);
 381                 if (ret <= 0)
 382                         return -ETIMEDOUT;
 383
 384                 spin_lock_bh(&ar->data_lock);
 385                 if (ar->debug.fw_stats_done) {
 386                         spin_unlock_bh(&ar->data_lock);
 387                         break;
 388                 }
 389                 spin_unlock_bh(&ar->data_lock);
 390         }
 391
 392         return 0;
 393 }
 394
 395 /* FIXME: How to calculate the buffer size sanely? */
 396 #define ATH10K_FW_STATS_BUF_SIZE (1024*1024)
 397
 398 static void ath10k_fw_stats_fill(struct ath10k *ar,
 399                                  struct ath10k_fw_stats *fw_stats,
 400                                  char *buf)
 401 {
 402         unsigned int len = 0;
 403         unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE;
 404         const struct ath10k_fw_stats_pdev *pdev;
 405         const struct ath10k_fw_stats_peer *peer;
 406         size_t num_peers;
 407
 408         spin_lock_bh(&ar->data_lock);
 409
 410         pdev = list_first_entry_or_null(&fw_stats->pdevs,
 411                                         struct ath10k_fw_stats_pdev, list);
 412         if (!pdev) {
 413                 ath10k_warn(ar, "failed to get pdev stats\n");
 414                 goto unlock;
 415         }
 416
 417         num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers);
 418
 419         len += scnprintf(buf + len, buf_len - len, "\n");
 420         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 421                          "ath10k PDEV stats");
 422         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 423                                  "=================");
 424
 425         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 426                          "Channel noise floor", pdev->ch_noise_floor);
 427         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 428                          "Channel TX power", pdev->chan_tx_power);
 429         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 430                          "TX frame count", pdev->tx_frame_count);
 431         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 432                          "RX frame count", pdev->rx_frame_count);
 433         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 434                          "RX clear count", pdev->rx_clear_count);
 435         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 436                          "Cycle count", pdev->cycle_count);
 437         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 438                          "PHY error count", pdev->phy_err_count);
 439         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 440                          "RTS bad count", pdev->rts_bad);
 441         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 442                          "RTS good count", pdev->rts_good);
 443         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 444                          "FCS bad count", pdev->fcs_bad);
 445         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 446                          "No beacon count", pdev->no_beacons);
 447         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 448                          "MIB int count", pdev->mib_int_count);
 449
 450         len += scnprintf(buf + len, buf_len - len, "\n");
 451         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 452                          "ath10k PDEV TX stats");
 453         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 454                                  "=================");
 455
 456         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 457                          "HTT cookies queued", pdev->comp_queued);
 458         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 459                          "HTT cookies disp.", pdev->comp_delivered);
 460         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 461                          "MSDU queued", pdev->msdu_enqued);
 462         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 463                          "MPDU queued", pdev->mpdu_enqued);
 464         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 465                          "MSDUs dropped", pdev->wmm_drop);
 466         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 467                          "Local enqued", pdev->local_enqued);
 468         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 469                          "Local freed", pdev->local_freed);
 470         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 471                          "HW queued", pdev->hw_queued);
 472         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 473                          "PPDUs reaped", pdev->hw_reaped);
 474         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 475                          "Num underruns", pdev->underrun);
 476         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 477                          "PPDUs cleaned", pdev->tx_abort);
 478         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 479                          "MPDUs requed", pdev->mpdus_requed);
 480         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 481                          "Excessive retries", pdev->tx_ko);
 482         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 483                          "HW rate", pdev->data_rc);
 484         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 485                          "Sched self tiggers", pdev->self_triggers);
 486         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 487                          "Dropped due to SW retries",
 488                          pdev->sw_retry_failure);
 489         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 490                          "Illegal rate phy errors",
 491                          pdev->illgl_rate_phy_err);
 492         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 493                          "Pdev continous xretry", pdev->pdev_cont_xretry);
 494         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 495                          "TX timeout", pdev->pdev_tx_timeout);
 496         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 497                          "PDEV resets", pdev->pdev_resets);
 498         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 499                          "PHY underrun", pdev->phy_underrun);
 500         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 501                          "MPDU is more than txop limit", pdev->txop_ovf);
 502
 503         len += scnprintf(buf + len, buf_len - len, "\n");
 504         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 505                          "ath10k PDEV RX stats");
 506         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 507                                  "=================");
 508
 509         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 510                          "Mid PPDU route change",
 511                          pdev->mid_ppdu_route_change);
 512         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 513                          "Tot. number of statuses", pdev->status_rcvd);
 514         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 515                          "Extra frags on rings 0", pdev->r0_frags);
 516         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 517                          "Extra frags on rings 1", pdev->r1_frags);
 518         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 519                          "Extra frags on rings 2", pdev->r2_frags);
 520         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 521                          "Extra frags on rings 3", pdev->r3_frags);
 522         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 523                          "MSDUs delivered to HTT", pdev->htt_msdus);
 524         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 525                          "MPDUs delivered to HTT", pdev->htt_mpdus);
 526         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 527                          "MSDUs delivered to stack", pdev->loc_msdus);
 528         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 529                          "MPDUs delivered to stack", pdev->loc_mpdus);
 530         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 531                          "Oversized AMSUs", pdev->oversize_amsdu);
 532         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 533                          "PHY errors", pdev->phy_errs);
 534         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 535                          "PHY errors drops", pdev->phy_err_drop);
 536         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 537                          "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs);
 538
 539         len += scnprintf(buf + len, buf_len - len, "\n");
 540         len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
 541                          "ath10k PEER stats", num_peers);
 542         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 543                                  "=================");
 544
 545         list_for_each_entry(peer, &fw_stats->peers, list) {
 546                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 547                                  "Peer MAC address", peer->peer_macaddr);
 548                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 549                                  "Peer RSSI", peer->peer_rssi);
 550                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 551                                  "Peer TX rate", peer->peer_tx_rate);
 552                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 553                                  "Peer RX rate", peer->peer_rx_rate);
 554                 len += scnprintf(buf + len, buf_len - len, "\n");
 555         }
 556
 557 unlock:
 558         spin_unlock_bh(&ar->data_lock);
 559
 560         if (len >= buf_len)
 561                 buf[len - 1] = 0;
 562         else
 563                 buf[len] = 0;
 564 }
 565
 566 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 567 {
 568         struct ath10k *ar = inode->i_private;
 569         void *buf = NULL;
 570         int ret;
 571
 572         mutex_lock(&ar->conf_mutex);
 573
 574         if (ar->state != ATH10K_STATE_ON) {
 575                 ret = -ENETDOWN;
 576                 goto err_unlock;
 577         }
 578
 579         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 580         if (!buf) {
 581                 ret = -ENOMEM;
 582                 goto err_unlock;
 583         }
 584
 585         ret = ath10k_debug_fw_stats_request(ar);
 586         if (ret) {
 587                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 588                 goto err_free;
 589         }
 590
 591         ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 592         file->private_data = buf;
 593
 594         mutex_unlock(&ar->conf_mutex);
 595         return 0;
 596
 597 err_free:
 598         vfree(buf);
 599
 600 err_unlock:
 601         mutex_unlock(&ar->conf_mutex);
 602         return ret;
 603 }
 604
 605 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 606 {
 607         vfree(file->private_data);
 608
 609         return 0;
 610 }
 611
 612 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 613                                     size_t count, loff_t *ppos)
 614 {
 615         const char *buf = file->private_data;
 616         unsigned int len = strlen(buf);
 617
 618         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 619 }
 620
 621 static const struct file_operations fops_fw_stats = {
 622         .open = ath10k_fw_stats_open,
 623         .release = ath10k_fw_stats_release,
 624         .read = ath10k_fw_stats_read,
 625         .owner = THIS_MODULE,
 626         .llseek = default_llseek,
 627 };
 628
 629 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 630                                                 char __user *user_buf,
 631                                                 size_t count, loff_t *ppos)
 632 {
 633         struct ath10k *ar = file->private_data;
 634         int ret, len, buf_len;
 635         char *buf;
 636
 637         buf_len = 500;
 638         buf = kmalloc(buf_len, GFP_KERNEL);
 639         if (!buf)
 640                 return -ENOMEM;
 641
 642         spin_lock_bh(&ar->data_lock);
 643
 644         len = 0;
 645         len += scnprintf(buf + len, buf_len - len,
 646                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 647         len += scnprintf(buf + len, buf_len - len,
 648                          "fw_warm_reset_counter\t\t%d\n",
 649                          ar->stats.fw_warm_reset_counter);
 650         len += scnprintf(buf + len, buf_len - len,
 651                          "fw_cold_reset_counter\t\t%d\n",
 652                          ar->stats.fw_cold_reset_counter);
 653
 654         spin_unlock_bh(&ar->data_lock);
 655
 656         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 657
 658         kfree(buf);
 659
 660         return ret;
 661 }
 662
 663 static const struct file_operations fops_fw_reset_stats = {
 664         .open = simple_open,
 665         .read = ath10k_debug_fw_reset_stats_read,
 666         .owner = THIS_MODULE,
 667         .llseek = default_llseek,
 668 };
 669
 670 /* This is a clean assert crash in firmware. */
 671 static int ath10k_debug_fw_assert(struct ath10k *ar)
 672 {
 673         struct wmi_vdev_install_key_cmd *cmd;
 674         struct sk_buff *skb;
 675
 676         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 677         if (!skb)
 678                 return -ENOMEM;
 679
 680         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 681         memset(cmd, 0, sizeof(*cmd));
 682
 683         /* big enough number so that firmware asserts */
 684         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 685
 686         return ath10k_wmi_cmd_send(ar, skb,
 687                                    ar->wmi.cmd->vdev_install_key_cmdid);
 688 }
 689
 690 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 691                                              char __user *user_buf,
 692                                              size_t count, loff_t *ppos)
 693 {
 694         const char buf[] =
 695                 "To simulate firmware crash write one of the keywords to this file:\n"
 696                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 697                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 698                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n";
 699
 700         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 701 }
 702
 703 /* Simulate firmware crash:
 704  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 705  * recoverable by warm firmware reset.
 706  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 707  * vdev id. This is hard firmware crash because it is recoverable only by cold
 708  * firmware reset.
 709  */
 710 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 711                                               const char __user *user_buf,
 712                                               size_t count, loff_t *ppos)
 713 {
 714         struct ath10k *ar = file->private_data;
 715         char buf[32];
 716         int ret;
 717
 718         mutex_lock(&ar->conf_mutex);
 719
 720         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 721
 722         /* make sure that buf is null terminated */
 723         buf[sizeof(buf) - 1] = 0;
 724
 725         if (ar->state != ATH10K_STATE_ON &&
 726             ar->state != ATH10K_STATE_RESTARTED) {
 727                 ret = -ENETDOWN;
 728                 goto exit;
 729         }
 730
 731         /* drop the possible '\n' from the end */
 732         if (buf[count - 1] == '\n') {
 733                 buf[count - 1] = 0;
 734                 count--;
 735         }
 736
 737         if (!strcmp(buf, "soft")) {
 738                 ath10k_info(ar, "simulating soft firmware crash\n");
 739                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 740         } else if (!strcmp(buf, "hard")) {
 741                 ath10k_info(ar, "simulating hard firmware crash\n");
 742                 /* 0x7fff is vdev id, and it is always out of range for all
 743                  * firmware variants in order to force a firmware crash.
 744                  */
 745                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 746                                                 ar->wmi.vdev_param->rts_threshold,
 747                                                 0);
 748         } else if (!strcmp(buf, "assert")) {
 749                 ath10k_info(ar, "simulating firmware assert crash\n");
 750                 ret = ath10k_debug_fw_assert(ar);
 751         } else {
 752                 ret = -EINVAL;
 753                 goto exit;
 754         }
 755
 756         if (ret) {
 757                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 758                 goto exit;
 759         }
 760
 761         ret = count;
 762
 763 exit:
 764         mutex_unlock(&ar->conf_mutex);
 765         return ret;
 766 }
 767
 768 static const struct file_operations fops_simulate_fw_crash = {
 769         .read = ath10k_read_simulate_fw_crash,
 770         .write = ath10k_write_simulate_fw_crash,
 771         .open = simple_open,
 772         .owner = THIS_MODULE,
 773         .llseek = default_llseek,
 774 };
 775
 776 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 777                                    size_t count, loff_t *ppos)
 778 {
 779         struct ath10k *ar = file->private_data;
 780         unsigned int len;
 781         char buf[50];
 782
 783         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 784
 785         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 786 }
 787
 788 static const struct file_operations fops_chip_id = {
 789         .read = ath10k_read_chip_id,
 790         .open = simple_open,
 791         .owner = THIS_MODULE,
 792         .llseek = default_llseek,
 793 };
 794
 795 struct ath10k_fw_crash_data *
 796 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 797 {
 798         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 799
 800         lockdep_assert_held(&ar->data_lock);
 801
 802         crash_data->crashed_since_read = true;
 803         uuid_le_gen(&crash_data->uuid);
 804         getnstimeofday(&crash_data->timestamp);
 805
 806         return crash_data;
 807 }
 808 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 809
 810 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 811 {
 812         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 813         struct ath10k_dump_file_data *dump_data;
 814         struct ath10k_tlv_dump_data *dump_tlv;
 815         int hdr_len = sizeof(*dump_data);
 816         unsigned int len, sofar = 0;
 817         unsigned char *buf;
 818
 819         len = hdr_len;
 820         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 821
 822         sofar += hdr_len;
 823
 824         /* This is going to get big when we start dumping FW RAM and such,
 825          * so go ahead and use vmalloc.
 826          */
 827         buf = vzalloc(len);
 828         if (!buf)
 829                 return NULL;
 830
 831         spin_lock_bh(&ar->data_lock);
 832
 833         if (!crash_data->crashed_since_read) {
 834                 spin_unlock_bh(&ar->data_lock);
 835                 vfree(buf);
 836                 return NULL;
 837         }
 838
 839         dump_data = (struct ath10k_dump_file_data *)(buf);
 840         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 841                 sizeof(dump_data->df_magic));
 842         dump_data->len = cpu_to_le32(len);
 843
 844         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 845
 846         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 847         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 848         dump_data->bus_type = cpu_to_le32(0);
 849         dump_data->target_version = cpu_to_le32(ar->target_version);
 850         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 851         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 852         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 853         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 854         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 855         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 856         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 857         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 858         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 859         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 860
 861         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 862                 sizeof(dump_data->fw_ver));
 863
 864         dump_data->kernel_ver_code = cpu_to_le32(LINUX_VERSION_CODE);
 865         strlcpy(dump_data->kernel_ver, VERMAGIC_STRING,
 866                 sizeof(dump_data->kernel_ver));
 867
 868         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 869         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 870
 871         /* Gather crash-dump */
 872         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 873         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 874         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 875         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 876                sizeof(crash_data->registers));
 877         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 878
 879         ar->debug.fw_crash_data->crashed_since_read = false;
 880
 881         spin_unlock_bh(&ar->data_lock);
 882
 883         return dump_data;
 884 }
 885
 886 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 887 {
 888         struct ath10k *ar = inode->i_private;
 889         struct ath10k_dump_file_data *dump;
 890
 891         dump = ath10k_build_dump_file(ar);
 892         if (!dump)
 893                 return -ENODATA;
 894
 895         file->private_data = dump;
 896
 897         return 0;
 898 }
 899
 900 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
 901                                          char __user *user_buf,
 902                                          size_t count, loff_t *ppos)
 903 {
 904         struct ath10k_dump_file_data *dump_file = file->private_data;
 905
 906         return simple_read_from_buffer(user_buf, count, ppos,
 907                                        dump_file,
 908                                        le32_to_cpu(dump_file->len));
 909 }
 910
 911 static int ath10k_fw_crash_dump_release(struct inode *inode,
 912                                         struct file *file)
 913 {
 914         vfree(file->private_data);
 915
 916         return 0;
 917 }
 918
 919 static const struct file_operations fops_fw_crash_dump = {
 920         .open = ath10k_fw_crash_dump_open,
 921         .read = ath10k_fw_crash_dump_read,
 922         .release = ath10k_fw_crash_dump_release,
 923         .owner = THIS_MODULE,
 924         .llseek = default_llseek,
 925 };
 926
 927 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 928 {
 929         u64 cookie;
 930         int ret;
 931
 932         lockdep_assert_held(&ar->conf_mutex);
 933
 934         if (ar->debug.htt_stats_mask == 0)
 935                 /* htt stats are disabled */
 936                 return 0;
 937
 938         if (ar->state != ATH10K_STATE_ON)
 939                 return 0;
 940
 941         cookie = get_jiffies_64();
 942
 943         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 944                                        cookie);
 945         if (ret) {
 946                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
 947                 return ret;
 948         }
 949
 950         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 951                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 952
 953         return 0;
 954 }
 955
 956 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 957 {
 958         struct ath10k *ar = container_of(work, struct ath10k,
 959                                          debug.htt_stats_dwork.work);
 960
 961         mutex_lock(&ar->conf_mutex);
 962
 963         ath10k_debug_htt_stats_req(ar);
 964
 965         mutex_unlock(&ar->conf_mutex);
 966 }
 967
 968 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 969                                           char __user *user_buf,
 970                                           size_t count, loff_t *ppos)
 971 {
 972         struct ath10k *ar = file->private_data;
 973         char buf[32];
 974         unsigned int len;
 975
 976         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 977
 978         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 979 }
 980
 981 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 982                                            const char __user *user_buf,
 983                                            size_t count, loff_t *ppos)
 984 {
 985         struct ath10k *ar = file->private_data;
 986         unsigned long mask;
 987         int ret;
 988
 989         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 990         if (ret)
 991                 return ret;
 992
 993         /* max 8 bit masks (for now) */
 994         if (mask > 0xff)
 995                 return -E2BIG;
 996
 997         mutex_lock(&ar->conf_mutex);
 998
 999         ar->debug.htt_stats_mask = mask;
1000
1001         ret = ath10k_debug_htt_stats_req(ar);
1002         if (ret)
1003                 goto out;
1004
1005         ret = count;
1006
1007 out:
1008         mutex_unlock(&ar->conf_mutex);
1009
1010         return ret;
1011 }
1012
1013 static const struct file_operations fops_htt_stats_mask = {
1014         .read = ath10k_read_htt_stats_mask,
1015         .write = ath10k_write_htt_stats_mask,
1016         .open = simple_open,
1017         .owner = THIS_MODULE,
1018         .llseek = default_llseek,
1019 };
1020
1021 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
1022                                                char __user *user_buf,
1023                                                size_t count, loff_t *ppos)
1024 {
1025         struct ath10k *ar = file->private_data;
1026         char buf[64];
1027         u8 amsdu = 3, ampdu = 64;
1028         unsigned int len;
1029
1030         mutex_lock(&ar->conf_mutex);
1031
1032         if (ar->debug.htt_max_amsdu)
1033                 amsdu = ar->debug.htt_max_amsdu;
1034
1035         if (ar->debug.htt_max_ampdu)
1036                 ampdu = ar->debug.htt_max_ampdu;
1037
1038         mutex_unlock(&ar->conf_mutex);
1039
1040         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
1041
1042         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1043 }
1044
1045 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
1046                                                 const char __user *user_buf,
1047                                                 size_t count, loff_t *ppos)
1048 {
1049         struct ath10k *ar = file->private_data;
1050         int res;
1051         char buf[64];
1052         unsigned int amsdu, ampdu;
1053
1054         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1055
1056         /* make sure that buf is null terminated */
1057         buf[sizeof(buf) - 1] = 0;
1058
1059         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
1060
1061         if (res != 2)
1062                 return -EINVAL;
1063
1064         mutex_lock(&ar->conf_mutex);
1065
1066         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1067         if (res)
1068                 goto out;
1069
1070         res = count;
1071         ar->debug.htt_max_amsdu = amsdu;
1072         ar->debug.htt_max_ampdu = ampdu;
1073
1074 out:
1075         mutex_unlock(&ar->conf_mutex);
1076         return res;
1077 }
1078
1079 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1080         .read = ath10k_read_htt_max_amsdu_ampdu,
1081         .write = ath10k_write_htt_max_amsdu_ampdu,
1082         .open = simple_open,
1083         .owner = THIS_MODULE,
1084         .llseek = default_llseek,
1085 };
1086
1087 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1088                                      char __user *user_buf,
1089                                      size_t count, loff_t *ppos)
1090 {
1091         struct ath10k *ar = file->private_data;
1092         unsigned int len;
1093         char buf[32];
1094
1095         len = scnprintf(buf, sizeof(buf), "0x%08x\n",
1096                         ar->debug.fw_dbglog_mask);
1097
1098         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1099 }
1100
1101 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1102                                       const char __user *user_buf,
1103                                       size_t count, loff_t *ppos)
1104 {
1105         struct ath10k *ar = file->private_data;
1106         unsigned long mask;
1107         int ret;
1108
1109         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1110         if (ret)
1111                 return ret;
1112
1113         mutex_lock(&ar->conf_mutex);
1114
1115         ar->debug.fw_dbglog_mask = mask;
1116
1117         if (ar->state == ATH10K_STATE_ON) {
1118                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1119                 if (ret) {
1120                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1121                                     ret);
1122                         goto exit;
1123                 }
1124         }
1125
1126         ret = count;
1127
1128 exit:
1129         mutex_unlock(&ar->conf_mutex);
1130
1131         return ret;
1132 }
1133
1134 /* TODO:  Would be nice to always support ethtool stats, would need to
1135  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1136  * struct available..
1137  */
1138
1139 /* This generally cooresponds to the debugfs fw_stats file */
1140 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1141         "tx_pkts_nic",
1142         "tx_bytes_nic",
1143         "rx_pkts_nic",
1144         "rx_bytes_nic",
1145         "d_noise_floor",
1146         "d_cycle_count",
1147         "d_phy_error",
1148         "d_rts_bad",
1149         "d_rts_good",
1150         "d_tx_power", /* in .5 dbM I think */
1151         "d_rx_crc_err", /* fcs_bad */
1152         "d_no_beacon",
1153         "d_tx_mpdus_queued",
1154         "d_tx_msdu_queued",
1155         "d_tx_msdu_dropped",
1156         "d_local_enqued",
1157         "d_local_freed",
1158         "d_tx_ppdu_hw_queued",
1159         "d_tx_ppdu_reaped",
1160         "d_tx_fifo_underrun",
1161         "d_tx_ppdu_abort",
1162         "d_tx_mpdu_requed",
1163         "d_tx_excessive_retries",
1164         "d_tx_hw_rate",
1165         "d_tx_dropped_sw_retries",
1166         "d_tx_illegal_rate",
1167         "d_tx_continuous_xretries",
1168         "d_tx_timeout",
1169         "d_tx_mpdu_txop_limit",
1170         "d_pdev_resets",
1171         "d_rx_mid_ppdu_route_change",
1172         "d_rx_status",
1173         "d_rx_extra_frags_ring0",
1174         "d_rx_extra_frags_ring1",
1175         "d_rx_extra_frags_ring2",
1176         "d_rx_extra_frags_ring3",
1177         "d_rx_msdu_htt",
1178         "d_rx_mpdu_htt",
1179         "d_rx_msdu_stack",
1180         "d_rx_mpdu_stack",
1181         "d_rx_phy_err",
1182         "d_rx_phy_err_drops",
1183         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1184         "d_fw_crash_count",
1185         "d_fw_warm_reset_count",
1186         "d_fw_cold_reset_count",
1187 };
1188
1189 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1190
1191 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1192                                  struct ieee80211_vif *vif,
1193                                  u32 sset, u8 *data)
1194 {
1195         if (sset == ETH_SS_STATS)
1196                 memcpy(data, *ath10k_gstrings_stats,
1197                        sizeof(ath10k_gstrings_stats));
1198 }
1199
1200 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1201                                    struct ieee80211_vif *vif, int sset)
1202 {
1203         if (sset == ETH_SS_STATS)
1204                 return ATH10K_SSTATS_LEN;
1205
1206         return 0;
1207 }
1208
1209 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1210                                struct ieee80211_vif *vif,
1211                                struct ethtool_stats *stats, u64 *data)
1212 {
1213         struct ath10k *ar = hw->priv;
1214         static const struct ath10k_fw_stats_pdev zero_stats = {};
1215         const struct ath10k_fw_stats_pdev *pdev_stats;
1216         int i = 0, ret;
1217
1218         mutex_lock(&ar->conf_mutex);
1219
1220         if (ar->state == ATH10K_STATE_ON) {
1221                 ret = ath10k_debug_fw_stats_request(ar);
1222                 if (ret) {
1223                         /* just print a warning and try to use older results */
1224                         ath10k_warn(ar,
1225                                     "failed to get fw stats for ethtool: %d\n",
1226                                     ret);
1227                 }
1228         }
1229
1230         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1231                                               struct ath10k_fw_stats_pdev,
1232                                               list);
1233         if (!pdev_stats) {
1234                 /* no results available so just return zeroes */
1235                 pdev_stats = &zero_stats;
1236         }
1237
1238         spin_lock_bh(&ar->data_lock);
1239
1240         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1241         data[i++] = 0; /* tx bytes */
1242         data[i++] = pdev_stats->htt_mpdus;
1243         data[i++] = 0; /* rx bytes */
1244         data[i++] = pdev_stats->ch_noise_floor;
1245         data[i++] = pdev_stats->cycle_count;
1246         data[i++] = pdev_stats->phy_err_count;
1247         data[i++] = pdev_stats->rts_bad;
1248         data[i++] = pdev_stats->rts_good;
1249         data[i++] = pdev_stats->chan_tx_power;
1250         data[i++] = pdev_stats->fcs_bad;
1251         data[i++] = pdev_stats->no_beacons;
1252         data[i++] = pdev_stats->mpdu_enqued;
1253         data[i++] = pdev_stats->msdu_enqued;
1254         data[i++] = pdev_stats->wmm_drop;
1255         data[i++] = pdev_stats->local_enqued;
1256         data[i++] = pdev_stats->local_freed;
1257         data[i++] = pdev_stats->hw_queued;
1258         data[i++] = pdev_stats->hw_reaped;
1259         data[i++] = pdev_stats->underrun;
1260         data[i++] = pdev_stats->tx_abort;
1261         data[i++] = pdev_stats->mpdus_requed;
1262         data[i++] = pdev_stats->tx_ko;
1263         data[i++] = pdev_stats->data_rc;
1264         data[i++] = pdev_stats->sw_retry_failure;
1265         data[i++] = pdev_stats->illgl_rate_phy_err;
1266         data[i++] = pdev_stats->pdev_cont_xretry;
1267         data[i++] = pdev_stats->pdev_tx_timeout;
1268         data[i++] = pdev_stats->txop_ovf;
1269         data[i++] = pdev_stats->pdev_resets;
1270         data[i++] = pdev_stats->mid_ppdu_route_change;
1271         data[i++] = pdev_stats->status_rcvd;
1272         data[i++] = pdev_stats->r0_frags;
1273         data[i++] = pdev_stats->r1_frags;
1274         data[i++] = pdev_stats->r2_frags;
1275         data[i++] = pdev_stats->r3_frags;
1276         data[i++] = pdev_stats->htt_msdus;
1277         data[i++] = pdev_stats->htt_mpdus;
1278         data[i++] = pdev_stats->loc_msdus;
1279         data[i++] = pdev_stats->loc_mpdus;
1280         data[i++] = pdev_stats->phy_errs;
1281         data[i++] = pdev_stats->phy_err_drop;
1282         data[i++] = pdev_stats->mpdu_errs;
1283         data[i++] = ar->stats.fw_crash_counter;
1284         data[i++] = ar->stats.fw_warm_reset_counter;
1285         data[i++] = ar->stats.fw_cold_reset_counter;
1286
1287         spin_unlock_bh(&ar->data_lock);
1288
1289         mutex_unlock(&ar->conf_mutex);
1290
1291         WARN_ON(i != ATH10K_SSTATS_LEN);
1292 }
1293
1294 static const struct file_operations fops_fw_dbglog = {
1295         .read = ath10k_read_fw_dbglog,
1296         .write = ath10k_write_fw_dbglog,
1297         .open = simple_open,
1298         .owner = THIS_MODULE,
1299         .llseek = default_llseek,
1300 };
1301
1302 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1303 {
1304         struct ath10k *ar = inode->i_private;
1305         void *buf;
1306         u32 hi_addr;
1307         __le32 addr;
1308         int ret;
1309
1310         mutex_lock(&ar->conf_mutex);
1311
1312         if (ar->state != ATH10K_STATE_ON &&
1313             ar->state != ATH10K_STATE_UTF) {
1314                 ret = -ENETDOWN;
1315                 goto err;
1316         }
1317
1318         buf = vmalloc(QCA988X_CAL_DATA_LEN);
1319         if (!buf) {
1320                 ret = -ENOMEM;
1321                 goto err;
1322         }
1323
1324         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1325
1326         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1327         if (ret) {
1328                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret);
1329                 goto err_vfree;
1330         }
1331
1332         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf,
1333                                    QCA988X_CAL_DATA_LEN);
1334         if (ret) {
1335                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1336                 goto err_vfree;
1337         }
1338
1339         file->private_data = buf;
1340
1341         mutex_unlock(&ar->conf_mutex);
1342
1343         return 0;
1344
1345 err_vfree:
1346         vfree(buf);
1347
1348 err:
1349         mutex_unlock(&ar->conf_mutex);
1350
1351         return ret;
1352 }
1353
1354 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1355                                           char __user *user_buf,
1356                                           size_t count, loff_t *ppos)
1357 {
1358         void *buf = file->private_data;
1359
1360         return simple_read_from_buffer(user_buf, count, ppos,
1361                                        buf, QCA988X_CAL_DATA_LEN);
1362 }
1363
1364 static int ath10k_debug_cal_data_release(struct inode *inode,
1365                                          struct file *file)
1366 {
1367         vfree(file->private_data);
1368
1369         return 0;
1370 }
1371
1372 static const struct file_operations fops_cal_data = {
1373         .open = ath10k_debug_cal_data_open,
1374         .read = ath10k_debug_cal_data_read,
1375         .release = ath10k_debug_cal_data_release,
1376         .owner = THIS_MODULE,
1377         .llseek = default_llseek,
1378 };
1379
1380 int ath10k_debug_start(struct ath10k *ar)
1381 {
1382         int ret;
1383
1384         lockdep_assert_held(&ar->conf_mutex);
1385
1386         ret = ath10k_debug_htt_stats_req(ar);
1387         if (ret)
1388                 /* continue normally anyway, this isn't serious */
1389                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1390                             ret);
1391
1392         if (ar->debug.fw_dbglog_mask) {
1393                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1394                 if (ret)
1395                         /* not serious */
1396                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1397                                     ret);
1398         }
1399
1400         if (ar->debug.pktlog_filter) {
1401                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1402                                                     ar->debug.pktlog_filter);
1403                 if (ret)
1404                         /* not serious */
1405                         ath10k_warn(ar,
1406                                     "failed to enable pktlog filter %x: %d\n",
1407                                     ar->debug.pktlog_filter, ret);
1408         } else {
1409                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1410                 if (ret)
1411                         /* not serious */
1412                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1413         }
1414
1415         return ret;
1416 }
1417
1418 void ath10k_debug_stop(struct ath10k *ar)
1419 {
1420         lockdep_assert_held(&ar->conf_mutex);
1421
1422         /* Must not use _sync to avoid deadlock, we do that in
1423          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1424          * warning from del_timer(). */
1425         if (ar->debug.htt_stats_mask != 0)
1426                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1427
1428         ar->debug.htt_max_amsdu = 0;
1429         ar->debug.htt_max_ampdu = 0;
1430
1431         ath10k_wmi_pdev_pktlog_disable(ar);
1432 }
1433
1434 static ssize_t ath10k_write_simulate_radar(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
1440         ieee80211_radar_detected(ar->hw);
1441
1442         return count;
1443 }
1444
1445 static const struct file_operations fops_simulate_radar = {
1446         .write = ath10k_write_simulate_radar,
1447         .open = simple_open,
1448         .owner = THIS_MODULE,
1449         .llseek = default_llseek,
1450 };
1451
1452 #define ATH10K_DFS_STAT(s, p) (\
1453         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1454                          ar->debug.dfs_stats.p))
1455
1456 #define ATH10K_DFS_POOL_STAT(s, p) (\
1457         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1458                          ar->debug.dfs_pool_stats.p))
1459
1460 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1461                                      size_t count, loff_t *ppos)
1462 {
1463         int retval = 0, len = 0;
1464         const int size = 8000;
1465         struct ath10k *ar = file->private_data;
1466         char *buf;
1467
1468         buf = kzalloc(size, GFP_KERNEL);
1469         if (buf == NULL)
1470                 return -ENOMEM;
1471
1472         if (!ar->dfs_detector) {
1473                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1474                 goto exit;
1475         }
1476
1477         ar->debug.dfs_pool_stats =
1478                         ar->dfs_detector->get_stats(ar->dfs_detector);
1479
1480         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1481
1482         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1483         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1484         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1485         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1486         ATH10K_DFS_STAT("Radars detected", radar_detected);
1487
1488         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1489         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1490         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1491         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1492         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1493         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1494         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1495         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1496
1497 exit:
1498         if (len > size)
1499                 len = size;
1500
1501         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1502         kfree(buf);
1503
1504         return retval;
1505 }
1506
1507 static const struct file_operations fops_dfs_stats = {
1508         .read = ath10k_read_dfs_stats,
1509         .open = simple_open,
1510         .owner = THIS_MODULE,
1511         .llseek = default_llseek,
1512 };
1513
1514 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1515                                           const char __user *ubuf,
1516                                           size_t count, loff_t *ppos)
1517 {
1518         struct ath10k *ar = file->private_data;
1519         u32 filter;
1520         int ret;
1521
1522         if (kstrtouint_from_user(ubuf, count, 0, &filter))
1523                 return -EINVAL;
1524
1525         mutex_lock(&ar->conf_mutex);
1526
1527         if (ar->state != ATH10K_STATE_ON) {
1528                 ar->debug.pktlog_filter = filter;
1529                 ret = count;
1530                 goto out;
1531         }
1532
1533         if (filter && (filter != ar->debug.pktlog_filter)) {
1534                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1535                 if (ret) {
1536                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1537                                     ar->debug.pktlog_filter, ret);
1538                         goto out;
1539                 }
1540         } else {
1541                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1542                 if (ret) {
1543                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1544                         goto out;
1545                 }
1546         }
1547
1548         ar->debug.pktlog_filter = filter;
1549         ret = count;
1550
1551 out:
1552         mutex_unlock(&ar->conf_mutex);
1553         return ret;
1554 }
1555
1556 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1557                                          size_t count, loff_t *ppos)
1558 {
1559         char buf[32];
1560         struct ath10k *ar = file->private_data;
1561         int len = 0;
1562
1563         mutex_lock(&ar->conf_mutex);
1564         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1565                         ar->debug.pktlog_filter);
1566         mutex_unlock(&ar->conf_mutex);
1567
1568         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1569 }
1570
1571 static const struct file_operations fops_pktlog_filter = {
1572         .read = ath10k_read_pktlog_filter,
1573         .write = ath10k_write_pktlog_filter,
1574         .open = simple_open
1575 };
1576
1577 int ath10k_debug_create(struct ath10k *ar)
1578 {
1579         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1580         if (!ar->debug.fw_crash_data)
1581                 return -ENOMEM;
1582
1583         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
1584         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
1585
1586         return 0;
1587 }
1588
1589 void ath10k_debug_destroy(struct ath10k *ar)
1590 {
1591         vfree(ar->debug.fw_crash_data);
1592         ar->debug.fw_crash_data = NULL;
1593
1594         ath10k_debug_fw_stats_reset(ar);
1595 }
1596
1597 int ath10k_debug_register(struct ath10k *ar)
1598 {
1599         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
1600                                                    ar->hw->wiphy->debugfsdir);
1601         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
1602                 if (IS_ERR(ar->debug.debugfs_phy))
1603                         return PTR_ERR(ar->debug.debugfs_phy);
1604
1605                 return -ENOMEM;
1606         }
1607
1608         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
1609                           ath10k_debug_htt_stats_dwork);
1610
1611         init_completion(&ar->debug.fw_stats_complete);
1612
1613         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
1614                             &fops_fw_stats);
1615
1616         debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy,
1617                             ar, &fops_fw_reset_stats);
1618
1619         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
1620                             &fops_wmi_services);
1621
1622         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
1623                             ar, &fops_simulate_fw_crash);
1624
1625         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
1626                             ar, &fops_fw_crash_dump);
1627
1628         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
1629                             ar, &fops_chip_id);
1630
1631         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
1632                             ar, &fops_htt_stats_mask);
1633
1634         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
1635                             ar->debug.debugfs_phy, ar,
1636                             &fops_htt_max_amsdu_ampdu);
1637
1638         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
1639                             ar, &fops_fw_dbglog);
1640
1641         debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
1642                             ar, &fops_cal_data);
1643
1644         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
1645                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
1646                                     ar->debug.debugfs_phy, ar,
1647                                     &fops_simulate_radar);
1648
1649                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
1650                                     ar->debug.debugfs_phy,
1651                                     &ar->dfs_block_radar_events);
1652
1653                 debugfs_create_file("dfs_stats", S_IRUSR,
1654                                     ar->debug.debugfs_phy, ar,
1655                                     &fops_dfs_stats);
1656         }
1657
1658         debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
1659                             ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
1660
1661         return 0;
1662 }
1663
1664 void ath10k_debug_unregister(struct ath10k *ar)
1665 {
1666         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
1667 }
1668
1669 #endif /* CONFIG_ATH10K_DEBUGFS */
1670
1671 #ifdef CONFIG_ATH10K_DEBUG
1672 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
1673                 const char *fmt, ...)
1674 {
1675         struct va_format vaf;
1676         va_list args;
1677
1678         va_start(args, fmt);
1679
1680         vaf.fmt = fmt;
1681         vaf.va = &args;
1682
1683         if (ath10k_debug_mask & mask)
1684                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
1685
1686         trace_ath10k_log_dbg(ar, mask, &vaf);
1687
1688         va_end(args);
1689 }
1690 EXPORT_SYMBOL(ath10k_dbg);
1691
1692 void ath10k_dbg_dump(struct ath10k *ar,
1693                      enum ath10k_debug_mask mask,
1694                      const char *msg, const char *prefix,
1695                      const void *buf, size_t len)
1696 {
1697         char linebuf[256];
1698         unsigned int linebuflen;
1699         const void *ptr;
1700
1701         if (ath10k_debug_mask & mask) {
1702                 if (msg)
1703                         ath10k_dbg(ar, mask, "%s\n", msg);
1704
1705                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
1706                         linebuflen = 0;
1707                         linebuflen += scnprintf(linebuf + linebuflen,
1708                                                 sizeof(linebuf) - linebuflen,
1709                                                 "%s%08x: ",
1710                                                 (prefix ? prefix : ""),
1711                                                 (unsigned int)(ptr - buf));
1712                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
1713                                            linebuf + linebuflen,
1714                                            sizeof(linebuf) - linebuflen, true);
1715                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
1716                 }
1717         }
1718
1719         /* tracing code doesn't like null strings :/ */
1720         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
1721                                   buf, len);
1722 }
1723 EXPORT_SYMBOL(ath10k_dbg_dump);
1724
1725 #endif /* CONFIG_ATH10K_DEBUG */