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
  27 /* ms */
  28 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  29
  30 #define ATH10K_FW_CRASH_DUMP_VERSION 1
  31
  32 /**
  33  * enum ath10k_fw_crash_dump_type - types of data in the dump file
  34  * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
  35  */
  36 enum ath10k_fw_crash_dump_type {
  37         ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
  38
  39         ATH10K_FW_CRASH_DUMP_MAX,
  40 };
  41
  42 struct ath10k_tlv_dump_data {
  43         /* see ath10k_fw_crash_dump_type above */
  44         __le32 type;
  45
  46         /* in bytes */
  47         __le32 tlv_len;
  48
  49         /* pad to 32-bit boundaries as needed */
  50         u8 tlv_data[];
  51 } __packed;
  52
  53 struct ath10k_dump_file_data {
  54         /* dump file information */
  55
  56         /* "ATH10K-FW-DUMP" */
  57         char df_magic[16];
  58
  59         __le32 len;
  60
  61         /* file dump version */
  62         __le32 version;
  63
  64         /* some info we can get from ath10k struct that might help */
  65
  66         u8 uuid[16];
  67
  68         __le32 chip_id;
  69
  70         /* 0 for now, in place for later hardware */
  71         __le32 bus_type;
  72
  73         __le32 target_version;
  74         __le32 fw_version_major;
  75         __le32 fw_version_minor;
  76         __le32 fw_version_release;
  77         __le32 fw_version_build;
  78         __le32 phy_capability;
  79         __le32 hw_min_tx_power;
  80         __le32 hw_max_tx_power;
  81         __le32 ht_cap_info;
  82         __le32 vht_cap_info;
  83         __le32 num_rf_chains;
  84
  85         /* firmware version string */
  86         char fw_ver[ETHTOOL_FWVERS_LEN];
  87
  88         /* Kernel related information */
  89
  90         /* time-of-day stamp */
  91         __le64 tv_sec;
  92
  93         /* time-of-day stamp, nano-seconds */
  94         __le64 tv_nsec;
  95
  96         /* LINUX_VERSION_CODE */
  97         __le32 kernel_ver_code;
  98
  99         /* VERMAGIC_STRING */
 100         char kernel_ver[64];
 101
 102         /* room for growth w/out changing binary format */
 103         u8 unused[128];
 104
 105         /* struct ath10k_tlv_dump_data + more */
 106         u8 data[0];
 107 } __packed;
 108
 109 int ath10k_info(struct ath10k *ar, const char *fmt, ...)
 110 {
 111         struct va_format vaf = {
 112                 .fmt = fmt,
 113         };
 114         va_list args;
 115         int ret;
 116
 117         va_start(args, fmt);
 118         vaf.va = &args;
 119         ret = dev_info(ar->dev, "%pV", &vaf);
 120         trace_ath10k_log_info(ar, &vaf);
 121         va_end(args);
 122
 123         return ret;
 124 }
 125 EXPORT_SYMBOL(ath10k_info);
 126
 127 void ath10k_print_driver_info(struct ath10k *ar)
 128 {
 129         ath10k_info(ar, "%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d wmi %d.%d.%d.%d\n",
 130                     ar->hw_params.name,
 131                     ar->target_version,
 132                     ar->chip_id,
 133                     ar->hw->wiphy->fw_version,
 134                     ar->fw_api,
 135                     ar->htt.target_version_major,
 136                     ar->htt.target_version_minor,
 137                     ar->fw_version_major,
 138                     ar->fw_version_minor,
 139                     ar->fw_version_release,
 140                     ar->fw_version_build);
 141         ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n",
 142                     config_enabled(CONFIG_ATH10K_DEBUG),
 143                     config_enabled(CONFIG_ATH10K_DEBUGFS),
 144                     config_enabled(CONFIG_ATH10K_TRACING),
 145                     config_enabled(CONFIG_ATH10K_DFS_CERTIFIED),
 146                     config_enabled(CONFIG_NL80211_TESTMODE));
 147 }
 148 EXPORT_SYMBOL(ath10k_print_driver_info);
 149
 150 int ath10k_err(struct ath10k *ar, const char *fmt, ...)
 151 {
 152         struct va_format vaf = {
 153                 .fmt = fmt,
 154         };
 155         va_list args;
 156         int ret;
 157
 158         va_start(args, fmt);
 159         vaf.va = &args;
 160         ret = dev_err(ar->dev, "%pV", &vaf);
 161         trace_ath10k_log_err(ar, &vaf);
 162         va_end(args);
 163
 164         return ret;
 165 }
 166 EXPORT_SYMBOL(ath10k_err);
 167
 168 int ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 169 {
 170         struct va_format vaf = {
 171                 .fmt = fmt,
 172         };
 173         va_list args;
 174
 175         va_start(args, fmt);
 176         vaf.va = &args;
 177         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 178         trace_ath10k_log_warn(ar, &vaf);
 179
 180         va_end(args);
 181
 182         return 0;
 183 }
 184 EXPORT_SYMBOL(ath10k_warn);
 185
 186 #ifdef CONFIG_ATH10K_DEBUGFS
 187
 188 void ath10k_debug_read_service_map(struct ath10k *ar,
 189                                    const void *service_map,
 190                                    size_t map_size)
 191 {
 192         memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
 193 }
 194
 195 static ssize_t ath10k_read_wmi_services(struct file *file,
 196                                         char __user *user_buf,
 197                                         size_t count, loff_t *ppos)
 198 {
 199         struct ath10k *ar = file->private_data;
 200         char *buf;
 201         unsigned int len = 0, buf_len = 4096;
 202         const char *name;
 203         ssize_t ret_cnt;
 204         bool enabled;
 205         int i;
 206
 207         buf = kzalloc(buf_len, GFP_KERNEL);
 208         if (!buf)
 209                 return -ENOMEM;
 210
 211         mutex_lock(&ar->conf_mutex);
 212
 213         if (len > buf_len)
 214                 len = buf_len;
 215
 216         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 217                 enabled = test_bit(i, ar->debug.wmi_service_bitmap);
 218                 name = wmi_service_name(i);
 219
 220                 if (!name) {
 221                         if (enabled)
 222                                 len += scnprintf(buf + len, buf_len - len,
 223                                                  "%-40s %s (bit %d)\n",
 224                                                  "unknown", "enabled", i);
 225
 226                         continue;
 227                 }
 228
 229                 len += scnprintf(buf + len, buf_len - len,
 230                                  "%-40s %s\n",
 231                                  name, enabled ? "enabled" : "-");
 232         }
 233
 234         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 235
 236         mutex_unlock(&ar->conf_mutex);
 237
 238         kfree(buf);
 239         return ret_cnt;
 240 }
 241
 242 static const struct file_operations fops_wmi_services = {
 243         .read = ath10k_read_wmi_services,
 244         .open = simple_open,
 245         .owner = THIS_MODULE,
 246         .llseek = default_llseek,
 247 };
 248
 249 void ath10k_debug_read_target_stats(struct ath10k *ar,
 250                                     struct wmi_stats_event *ev)
 251 {
 252         u8 *tmp = ev->data;
 253         struct ath10k_target_stats *stats;
 254         int num_pdev_stats, num_vdev_stats, num_peer_stats;
 255         struct wmi_pdev_stats_10x *ps;
 256         int i;
 257
 258         spin_lock_bh(&ar->data_lock);
 259
 260         stats = &ar->debug.target_stats;
 261
 262         num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
 263         num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
 264         num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
 265
 266         if (num_pdev_stats) {
 267                 ps = (struct wmi_pdev_stats_10x *)tmp;
 268
 269                 stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
 270                 stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
 271                 stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
 272                 stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
 273                 stats->cycle_count = __le32_to_cpu(ps->cycle_count);
 274                 stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
 275                 stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
 276
 277                 stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
 278                 stats->comp_delivered =
 279                         __le32_to_cpu(ps->wal.tx.comp_delivered);
 280                 stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
 281                 stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
 282                 stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
 283                 stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
 284                 stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
 285                 stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
 286                 stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
 287                 stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
 288                 stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
 289                 stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
 290                 stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
 291                 stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
 292                 stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
 293                 stats->sw_retry_failure =
 294                         __le32_to_cpu(ps->wal.tx.sw_retry_failure);
 295                 stats->illgl_rate_phy_err =
 296                         __le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
 297                 stats->pdev_cont_xretry =
 298                         __le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
 299                 stats->pdev_tx_timeout =
 300                         __le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
 301                 stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
 302                 stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
 303                 stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
 304
 305                 stats->mid_ppdu_route_change =
 306                         __le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
 307                 stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
 308                 stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
 309                 stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
 310                 stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
 311                 stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
 312                 stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
 313                 stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
 314                 stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
 315                 stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
 316                 stats->oversize_amsdu =
 317                         __le32_to_cpu(ps->wal.rx.oversize_amsdu);
 318                 stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
 319                 stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
 320                 stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
 321
 322                 if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 323                              ar->fw_features)) {
 324                         stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
 325                         stats->rts_bad = __le32_to_cpu(ps->rts_bad);
 326                         stats->rts_good = __le32_to_cpu(ps->rts_good);
 327                         stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
 328                         stats->no_beacons = __le32_to_cpu(ps->no_beacons);
 329                         stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
 330                         tmp += sizeof(struct wmi_pdev_stats_10x);
 331                 } else {
 332                         tmp += sizeof(struct wmi_pdev_stats_old);
 333                 }
 334         }
 335
 336         /* 0 or max vdevs */
 337         /* Currently firmware does not support VDEV stats */
 338         if (num_vdev_stats) {
 339                 struct wmi_vdev_stats *vdev_stats;
 340
 341                 for (i = 0; i < num_vdev_stats; i++) {
 342                         vdev_stats = (struct wmi_vdev_stats *)tmp;
 343                         tmp += sizeof(struct wmi_vdev_stats);
 344                 }
 345         }
 346
 347         if (num_peer_stats) {
 348                 struct wmi_peer_stats_10x *peer_stats;
 349                 struct ath10k_peer_stat *s;
 350
 351                 stats->peers = num_peer_stats;
 352
 353                 for (i = 0; i < num_peer_stats; i++) {
 354                         peer_stats = (struct wmi_peer_stats_10x *)tmp;
 355                         s = &stats->peer_stat[i];
 356
 357                         memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
 358                                ETH_ALEN);
 359                         s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 360                         s->peer_tx_rate =
 361                                 __le32_to_cpu(peer_stats->peer_tx_rate);
 362                         if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 363                                      ar->fw_features)) {
 364                                 s->peer_rx_rate =
 365                                         __le32_to_cpu(peer_stats->peer_rx_rate);
 366                                 tmp += sizeof(struct wmi_peer_stats_10x);
 367
 368                         } else {
 369                                 tmp += sizeof(struct wmi_peer_stats_old);
 370                         }
 371                 }
 372         }
 373
 374         spin_unlock_bh(&ar->data_lock);
 375         complete(&ar->debug.event_stats_compl);
 376 }
 377
 378 static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 379                                     size_t count, loff_t *ppos)
 380 {
 381         struct ath10k *ar = file->private_data;
 382         struct ath10k_target_stats *fw_stats;
 383         char *buf = NULL;
 384         unsigned int len = 0, buf_len = 8000;
 385         ssize_t ret_cnt = 0;
 386         long left;
 387         int i;
 388         int ret;
 389
 390         fw_stats = &ar->debug.target_stats;
 391
 392         mutex_lock(&ar->conf_mutex);
 393
 394         if (ar->state != ATH10K_STATE_ON)
 395                 goto exit;
 396
 397         buf = kzalloc(buf_len, GFP_KERNEL);
 398         if (!buf)
 399                 goto exit;
 400
 401         ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
 402         if (ret) {
 403                 ath10k_warn(ar, "could not request stats (%d)\n", ret);
 404                 goto exit;
 405         }
 406
 407         left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
 408         if (left <= 0)
 409                 goto exit;
 410
 411         spin_lock_bh(&ar->data_lock);
 412         len += scnprintf(buf + len, buf_len - len, "\n");
 413         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 414                          "ath10k PDEV stats");
 415         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 416                                  "=================");
 417
 418         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 419                          "Channel noise floor", fw_stats->ch_noise_floor);
 420         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 421                          "Channel TX power", fw_stats->chan_tx_power);
 422         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 423                          "TX frame count", fw_stats->tx_frame_count);
 424         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 425                          "RX frame count", fw_stats->rx_frame_count);
 426         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 427                          "RX clear count", fw_stats->rx_clear_count);
 428         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 429                          "Cycle count", fw_stats->cycle_count);
 430         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 431                          "PHY error count", fw_stats->phy_err_count);
 432         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 433                          "RTS bad count", fw_stats->rts_bad);
 434         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 435                          "RTS good count", fw_stats->rts_good);
 436         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 437                          "FCS bad count", fw_stats->fcs_bad);
 438         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 439                          "No beacon count", fw_stats->no_beacons);
 440         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 441                          "MIB int count", fw_stats->mib_int_count);
 442
 443         len += scnprintf(buf + len, buf_len - len, "\n");
 444         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 445                          "ath10k PDEV TX stats");
 446         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 447                                  "=================");
 448
 449         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 450                          "HTT cookies queued", fw_stats->comp_queued);
 451         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 452                          "HTT cookies disp.", fw_stats->comp_delivered);
 453         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 454                          "MSDU queued", fw_stats->msdu_enqued);
 455         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 456                          "MPDU queued", fw_stats->mpdu_enqued);
 457         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 458                          "MSDUs dropped", fw_stats->wmm_drop);
 459         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 460                          "Local enqued", fw_stats->local_enqued);
 461         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 462                          "Local freed", fw_stats->local_freed);
 463         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 464                          "HW queued", fw_stats->hw_queued);
 465         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 466                          "PPDUs reaped", fw_stats->hw_reaped);
 467         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 468                          "Num underruns", fw_stats->underrun);
 469         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 470                          "PPDUs cleaned", fw_stats->tx_abort);
 471         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 472                          "MPDUs requed", fw_stats->mpdus_requed);
 473         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 474                          "Excessive retries", fw_stats->tx_ko);
 475         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 476                          "HW rate", fw_stats->data_rc);
 477         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 478                          "Sched self tiggers", fw_stats->self_triggers);
 479         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 480                          "Dropped due to SW retries",
 481                          fw_stats->sw_retry_failure);
 482         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 483                          "Illegal rate phy errors",
 484                          fw_stats->illgl_rate_phy_err);
 485         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 486                          "Pdev continous xretry", fw_stats->pdev_cont_xretry);
 487         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 488                          "TX timeout", fw_stats->pdev_tx_timeout);
 489         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 490                          "PDEV resets", fw_stats->pdev_resets);
 491         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 492                          "PHY underrun", fw_stats->phy_underrun);
 493         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 494                          "MPDU is more than txop limit", fw_stats->txop_ovf);
 495
 496         len += scnprintf(buf + len, buf_len - len, "\n");
 497         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 498                          "ath10k PDEV RX stats");
 499         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 500                                  "=================");
 501
 502         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 503                          "Mid PPDU route change",
 504                          fw_stats->mid_ppdu_route_change);
 505         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 506                          "Tot. number of statuses", fw_stats->status_rcvd);
 507         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 508                          "Extra frags on rings 0", fw_stats->r0_frags);
 509         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 510                          "Extra frags on rings 1", fw_stats->r1_frags);
 511         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 512                          "Extra frags on rings 2", fw_stats->r2_frags);
 513         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 514                          "Extra frags on rings 3", fw_stats->r3_frags);
 515         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 516                          "MSDUs delivered to HTT", fw_stats->htt_msdus);
 517         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 518                          "MPDUs delivered to HTT", fw_stats->htt_mpdus);
 519         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 520                          "MSDUs delivered to stack", fw_stats->loc_msdus);
 521         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 522                          "MPDUs delivered to stack", fw_stats->loc_mpdus);
 523         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 524                          "Oversized AMSUs", fw_stats->oversize_amsdu);
 525         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 526                          "PHY errors", fw_stats->phy_errs);
 527         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 528                          "PHY errors drops", fw_stats->phy_err_drop);
 529         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 530                          "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
 531
 532         len += scnprintf(buf + len, buf_len - len, "\n");
 533         len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
 534                          "ath10k PEER stats", fw_stats->peers);
 535         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 536                                  "=================");
 537
 538         for (i = 0; i < fw_stats->peers; i++) {
 539                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 540                                  "Peer MAC address",
 541                                  fw_stats->peer_stat[i].peer_macaddr);
 542                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 543                                  "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
 544                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 545                                  "Peer TX rate",
 546                                  fw_stats->peer_stat[i].peer_tx_rate);
 547                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 548                                  "Peer RX rate",
 549                                  fw_stats->peer_stat[i].peer_rx_rate);
 550                 len += scnprintf(buf + len, buf_len - len, "\n");
 551         }
 552         spin_unlock_bh(&ar->data_lock);
 553
 554         if (len > buf_len)
 555                 len = buf_len;
 556
 557         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 558
 559 exit:
 560         mutex_unlock(&ar->conf_mutex);
 561         kfree(buf);
 562         return ret_cnt;
 563 }
 564
 565 static const struct file_operations fops_fw_stats = {
 566         .read = ath10k_read_fw_stats,
 567         .open = simple_open,
 568         .owner = THIS_MODULE,
 569         .llseek = default_llseek,
 570 };
 571
 572 /* This is a clean assert crash in firmware. */
 573 static int ath10k_debug_fw_assert(struct ath10k *ar)
 574 {
 575         struct wmi_vdev_install_key_cmd *cmd;
 576         struct sk_buff *skb;
 577
 578         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 579         if (!skb)
 580                 return -ENOMEM;
 581
 582         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 583         memset(cmd, 0, sizeof(*cmd));
 584
 585         /* big enough number so that firmware asserts */
 586         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 587
 588         return ath10k_wmi_cmd_send(ar, skb,
 589                                    ar->wmi.cmd->vdev_install_key_cmdid);
 590 }
 591
 592 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 593                                              char __user *user_buf,
 594                                              size_t count, loff_t *ppos)
 595 {
 596         const char buf[] =
 597                 "To simulate firmware crash write one of the keywords to this file:\n"
 598                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 599                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 600                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n";
 601
 602         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 603 }
 604
 605 /* Simulate firmware crash:
 606  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 607  * recoverable by warm firmware reset.
 608  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 609  * vdev id. This is hard firmware crash because it is recoverable only by cold
 610  * firmware reset.
 611  */
 612 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 613                                               const char __user *user_buf,
 614                                               size_t count, loff_t *ppos)
 615 {
 616         struct ath10k *ar = file->private_data;
 617         char buf[32];
 618         int ret;
 619
 620         mutex_lock(&ar->conf_mutex);
 621
 622         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 623
 624         /* make sure that buf is null terminated */
 625         buf[sizeof(buf) - 1] = 0;
 626
 627         if (ar->state != ATH10K_STATE_ON &&
 628             ar->state != ATH10K_STATE_RESTARTED) {
 629                 ret = -ENETDOWN;
 630                 goto exit;
 631         }
 632
 633         /* drop the possible '\n' from the end */
 634         if (buf[count - 1] == '\n') {
 635                 buf[count - 1] = 0;
 636                 count--;
 637         }
 638
 639         if (!strcmp(buf, "soft")) {
 640                 ath10k_info(ar, "simulating soft firmware crash\n");
 641                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 642         } else if (!strcmp(buf, "hard")) {
 643                 ath10k_info(ar, "simulating hard firmware crash\n");
 644                 /* 0x7fff is vdev id, and it is always out of range for all
 645                  * firmware variants in order to force a firmware crash.
 646                  */
 647                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 648                                                 ar->wmi.vdev_param->rts_threshold,
 649                                                 0);
 650         } else if (!strcmp(buf, "assert")) {
 651                 ath10k_info(ar, "simulating firmware assert crash\n");
 652                 ret = ath10k_debug_fw_assert(ar);
 653         } else {
 654                 ret = -EINVAL;
 655                 goto exit;
 656         }
 657
 658         if (ret) {
 659                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 660                 goto exit;
 661         }
 662
 663         ret = count;
 664
 665 exit:
 666         mutex_unlock(&ar->conf_mutex);
 667         return ret;
 668 }
 669
 670 static const struct file_operations fops_simulate_fw_crash = {
 671         .read = ath10k_read_simulate_fw_crash,
 672         .write = ath10k_write_simulate_fw_crash,
 673         .open = simple_open,
 674         .owner = THIS_MODULE,
 675         .llseek = default_llseek,
 676 };
 677
 678 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 679                                    size_t count, loff_t *ppos)
 680 {
 681         struct ath10k *ar = file->private_data;
 682         unsigned int len;
 683         char buf[50];
 684
 685         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 686
 687         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 688 }
 689
 690 static const struct file_operations fops_chip_id = {
 691         .read = ath10k_read_chip_id,
 692         .open = simple_open,
 693         .owner = THIS_MODULE,
 694         .llseek = default_llseek,
 695 };
 696
 697 struct ath10k_fw_crash_data *
 698 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 699 {
 700         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 701
 702         lockdep_assert_held(&ar->data_lock);
 703
 704         crash_data->crashed_since_read = true;
 705         uuid_le_gen(&crash_data->uuid);
 706         getnstimeofday(&crash_data->timestamp);
 707
 708         return crash_data;
 709 }
 710 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 711
 712 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 713 {
 714         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 715         struct ath10k_dump_file_data *dump_data;
 716         struct ath10k_tlv_dump_data *dump_tlv;
 717         int hdr_len = sizeof(*dump_data);
 718         unsigned int len, sofar = 0;
 719         unsigned char *buf;
 720
 721         len = hdr_len;
 722         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 723
 724         sofar += hdr_len;
 725
 726         /* This is going to get big when we start dumping FW RAM and such,
 727          * so go ahead and use vmalloc.
 728          */
 729         buf = vzalloc(len);
 730         if (!buf)
 731                 return NULL;
 732
 733         spin_lock_bh(&ar->data_lock);
 734
 735         if (!crash_data->crashed_since_read) {
 736                 spin_unlock_bh(&ar->data_lock);
 737                 vfree(buf);
 738                 return NULL;
 739         }
 740
 741         dump_data = (struct ath10k_dump_file_data *)(buf);
 742         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 743                 sizeof(dump_data->df_magic));
 744         dump_data->len = cpu_to_le32(len);
 745
 746         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 747
 748         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 749         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 750         dump_data->bus_type = cpu_to_le32(0);
 751         dump_data->target_version = cpu_to_le32(ar->target_version);
 752         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 753         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 754         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 755         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 756         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 757         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 758         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 759         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 760         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 761         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 762
 763         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 764                 sizeof(dump_data->fw_ver));
 765
 766         dump_data->kernel_ver_code = cpu_to_le32(LINUX_VERSION_CODE);
 767         strlcpy(dump_data->kernel_ver, VERMAGIC_STRING,
 768                 sizeof(dump_data->kernel_ver));
 769
 770         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 771         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 772
 773         /* Gather crash-dump */
 774         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 775         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 776         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 777         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 778                sizeof(crash_data->registers));
 779         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 780
 781         ar->debug.fw_crash_data->crashed_since_read = false;
 782
 783         spin_unlock_bh(&ar->data_lock);
 784
 785         return dump_data;
 786 }
 787
 788 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 789 {
 790         struct ath10k *ar = inode->i_private;
 791         struct ath10k_dump_file_data *dump;
 792
 793         dump = ath10k_build_dump_file(ar);
 794         if (!dump)
 795                 return -ENODATA;
 796
 797         file->private_data = dump;
 798
 799         return 0;
 800 }
 801
 802 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
 803                                          char __user *user_buf,
 804                                          size_t count, loff_t *ppos)
 805 {
 806         struct ath10k_dump_file_data *dump_file = file->private_data;
 807
 808         return simple_read_from_buffer(user_buf, count, ppos,
 809                                        dump_file,
 810                                        le32_to_cpu(dump_file->len));
 811 }
 812
 813 static int ath10k_fw_crash_dump_release(struct inode *inode,
 814                                         struct file *file)
 815 {
 816         vfree(file->private_data);
 817
 818         return 0;
 819 }
 820
 821 static const struct file_operations fops_fw_crash_dump = {
 822         .open = ath10k_fw_crash_dump_open,
 823         .read = ath10k_fw_crash_dump_read,
 824         .release = ath10k_fw_crash_dump_release,
 825         .owner = THIS_MODULE,
 826         .llseek = default_llseek,
 827 };
 828
 829 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 830 {
 831         u64 cookie;
 832         int ret;
 833
 834         lockdep_assert_held(&ar->conf_mutex);
 835
 836         if (ar->debug.htt_stats_mask == 0)
 837                 /* htt stats are disabled */
 838                 return 0;
 839
 840         if (ar->state != ATH10K_STATE_ON)
 841                 return 0;
 842
 843         cookie = get_jiffies_64();
 844
 845         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 846                                        cookie);
 847         if (ret) {
 848                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
 849                 return ret;
 850         }
 851
 852         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 853                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 854
 855         return 0;
 856 }
 857
 858 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 859 {
 860         struct ath10k *ar = container_of(work, struct ath10k,
 861                                          debug.htt_stats_dwork.work);
 862
 863         mutex_lock(&ar->conf_mutex);
 864
 865         ath10k_debug_htt_stats_req(ar);
 866
 867         mutex_unlock(&ar->conf_mutex);
 868 }
 869
 870 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 871                                           char __user *user_buf,
 872                                           size_t count, loff_t *ppos)
 873 {
 874         struct ath10k *ar = file->private_data;
 875         char buf[32];
 876         unsigned int len;
 877
 878         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 879
 880         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 881 }
 882
 883 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 884                                            const char __user *user_buf,
 885                                            size_t count, loff_t *ppos)
 886 {
 887         struct ath10k *ar = file->private_data;
 888         unsigned long mask;
 889         int ret;
 890
 891         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 892         if (ret)
 893                 return ret;
 894
 895         /* max 8 bit masks (for now) */
 896         if (mask > 0xff)
 897                 return -E2BIG;
 898
 899         mutex_lock(&ar->conf_mutex);
 900
 901         ar->debug.htt_stats_mask = mask;
 902
 903         ret = ath10k_debug_htt_stats_req(ar);
 904         if (ret)
 905                 goto out;
 906
 907         ret = count;
 908
 909 out:
 910         mutex_unlock(&ar->conf_mutex);
 911
 912         return ret;
 913 }
 914
 915 static const struct file_operations fops_htt_stats_mask = {
 916         .read = ath10k_read_htt_stats_mask,
 917         .write = ath10k_write_htt_stats_mask,
 918         .open = simple_open,
 919         .owner = THIS_MODULE,
 920         .llseek = default_llseek,
 921 };
 922
 923 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
 924                                                char __user *user_buf,
 925                                                size_t count, loff_t *ppos)
 926 {
 927         struct ath10k *ar = file->private_data;
 928         char buf[64];
 929         u8 amsdu = 3, ampdu = 64;
 930         unsigned int len;
 931
 932         mutex_lock(&ar->conf_mutex);
 933
 934         if (ar->debug.htt_max_amsdu)
 935                 amsdu = ar->debug.htt_max_amsdu;
 936
 937         if (ar->debug.htt_max_ampdu)
 938                 ampdu = ar->debug.htt_max_ampdu;
 939
 940         mutex_unlock(&ar->conf_mutex);
 941
 942         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
 943
 944         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 945 }
 946
 947 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
 948                                                 const char __user *user_buf,
 949                                                 size_t count, loff_t *ppos)
 950 {
 951         struct ath10k *ar = file->private_data;
 952         int res;
 953         char buf[64];
 954         unsigned int amsdu, ampdu;
 955
 956         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 957
 958         /* make sure that buf is null terminated */
 959         buf[sizeof(buf) - 1] = 0;
 960
 961         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
 962
 963         if (res != 2)
 964                 return -EINVAL;
 965
 966         mutex_lock(&ar->conf_mutex);
 967
 968         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
 969         if (res)
 970                 goto out;
 971
 972         res = count;
 973         ar->debug.htt_max_amsdu = amsdu;
 974         ar->debug.htt_max_ampdu = ampdu;
 975
 976 out:
 977         mutex_unlock(&ar->conf_mutex);
 978         return res;
 979 }
 980
 981 static const struct file_operations fops_htt_max_amsdu_ampdu = {
 982         .read = ath10k_read_htt_max_amsdu_ampdu,
 983         .write = ath10k_write_htt_max_amsdu_ampdu,
 984         .open = simple_open,
 985         .owner = THIS_MODULE,
 986         .llseek = default_llseek,
 987 };
 988
 989 static ssize_t ath10k_read_fw_dbglog(struct file *file,
 990                                      char __user *user_buf,
 991                                      size_t count, loff_t *ppos)
 992 {
 993         struct ath10k *ar = file->private_data;
 994         unsigned int len;
 995         char buf[32];
 996
 997         len = scnprintf(buf, sizeof(buf), "0x%08x\n",
 998                         ar->debug.fw_dbglog_mask);
 999
1000         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1001 }
1002
1003 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1004                                       const char __user *user_buf,
1005                                       size_t count, loff_t *ppos)
1006 {
1007         struct ath10k *ar = file->private_data;
1008         unsigned long mask;
1009         int ret;
1010
1011         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1012         if (ret)
1013                 return ret;
1014
1015         mutex_lock(&ar->conf_mutex);
1016
1017         ar->debug.fw_dbglog_mask = mask;
1018
1019         if (ar->state == ATH10K_STATE_ON) {
1020                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1021                 if (ret) {
1022                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1023                                     ret);
1024                         goto exit;
1025                 }
1026         }
1027
1028         ret = count;
1029
1030 exit:
1031         mutex_unlock(&ar->conf_mutex);
1032
1033         return ret;
1034 }
1035
1036 static const struct file_operations fops_fw_dbglog = {
1037         .read = ath10k_read_fw_dbglog,
1038         .write = ath10k_write_fw_dbglog,
1039         .open = simple_open,
1040         .owner = THIS_MODULE,
1041         .llseek = default_llseek,
1042 };
1043
1044 int ath10k_debug_start(struct ath10k *ar)
1045 {
1046         int ret;
1047
1048         lockdep_assert_held(&ar->conf_mutex);
1049
1050         ret = ath10k_debug_htt_stats_req(ar);
1051         if (ret)
1052                 /* continue normally anyway, this isn't serious */
1053                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1054                             ret);
1055
1056         if (ar->debug.fw_dbglog_mask) {
1057                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1058                 if (ret)
1059                         /* not serious */
1060                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1061                                     ret);
1062         }
1063
1064         return 0;
1065 }
1066
1067 void ath10k_debug_stop(struct ath10k *ar)
1068 {
1069         lockdep_assert_held(&ar->conf_mutex);
1070
1071         /* Must not use _sync to avoid deadlock, we do that in
1072          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1073          * warning from del_timer(). */
1074         if (ar->debug.htt_stats_mask != 0)
1075                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1076
1077         ar->debug.htt_max_amsdu = 0;
1078         ar->debug.htt_max_ampdu = 0;
1079 }
1080
1081 static ssize_t ath10k_write_simulate_radar(struct file *file,
1082                                            const char __user *user_buf,
1083                                            size_t count, loff_t *ppos)
1084 {
1085         struct ath10k *ar = file->private_data;
1086
1087         ieee80211_radar_detected(ar->hw);
1088
1089         return count;
1090 }
1091
1092 static const struct file_operations fops_simulate_radar = {
1093         .write = ath10k_write_simulate_radar,
1094         .open = simple_open,
1095         .owner = THIS_MODULE,
1096         .llseek = default_llseek,
1097 };
1098
1099 #define ATH10K_DFS_STAT(s, p) (\
1100         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1101                          ar->debug.dfs_stats.p))
1102
1103 #define ATH10K_DFS_POOL_STAT(s, p) (\
1104         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1105                          ar->debug.dfs_pool_stats.p))
1106
1107 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1108                                      size_t count, loff_t *ppos)
1109 {
1110         int retval = 0, len = 0;
1111         const int size = 8000;
1112         struct ath10k *ar = file->private_data;
1113         char *buf;
1114
1115         buf = kzalloc(size, GFP_KERNEL);
1116         if (buf == NULL)
1117                 return -ENOMEM;
1118
1119         if (!ar->dfs_detector) {
1120                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1121                 goto exit;
1122         }
1123
1124         ar->debug.dfs_pool_stats =
1125                         ar->dfs_detector->get_stats(ar->dfs_detector);
1126
1127         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1128
1129         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1130         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1131         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1132         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1133         ATH10K_DFS_STAT("Radars detected", radar_detected);
1134
1135         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1136         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1137         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1138         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1139         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1140         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1141         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1142         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1143
1144 exit:
1145         if (len > size)
1146                 len = size;
1147
1148         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1149         kfree(buf);
1150
1151         return retval;
1152 }
1153
1154 static const struct file_operations fops_dfs_stats = {
1155         .read = ath10k_read_dfs_stats,
1156         .open = simple_open,
1157         .owner = THIS_MODULE,
1158         .llseek = default_llseek,
1159 };
1160
1161 int ath10k_debug_create(struct ath10k *ar)
1162 {
1163         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1164         if (!ar->debug.fw_crash_data)
1165                 return -ENOMEM;
1166
1167         return 0;
1168 }
1169
1170 void ath10k_debug_destroy(struct ath10k *ar)
1171 {
1172         vfree(ar->debug.fw_crash_data);
1173         ar->debug.fw_crash_data = NULL;
1174 }
1175
1176 int ath10k_debug_register(struct ath10k *ar)
1177 {
1178         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
1179                                                    ar->hw->wiphy->debugfsdir);
1180         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
1181                 if (IS_ERR(ar->debug.debugfs_phy))
1182                         return PTR_ERR(ar->debug.debugfs_phy);
1183
1184                 return -ENOMEM;
1185         }
1186
1187         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
1188                           ath10k_debug_htt_stats_dwork);
1189
1190         init_completion(&ar->debug.event_stats_compl);
1191
1192         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
1193                             &fops_fw_stats);
1194
1195         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
1196                             &fops_wmi_services);
1197
1198         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
1199                             ar, &fops_simulate_fw_crash);
1200
1201         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
1202                             ar, &fops_fw_crash_dump);
1203
1204         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
1205                             ar, &fops_chip_id);
1206
1207         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
1208                             ar, &fops_htt_stats_mask);
1209
1210         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
1211                             ar->debug.debugfs_phy, ar,
1212                             &fops_htt_max_amsdu_ampdu);
1213
1214         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
1215                             ar, &fops_fw_dbglog);
1216
1217         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
1218                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
1219                                     ar->debug.debugfs_phy, ar,
1220                                     &fops_simulate_radar);
1221
1222                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
1223                                     ar->debug.debugfs_phy,
1224                                     &ar->dfs_block_radar_events);
1225
1226                 debugfs_create_file("dfs_stats", S_IRUSR,
1227                                     ar->debug.debugfs_phy, ar,
1228                                     &fops_dfs_stats);
1229         }
1230
1231         return 0;
1232 }
1233
1234 void ath10k_debug_unregister(struct ath10k *ar)
1235 {
1236         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
1237 }
1238
1239 #endif /* CONFIG_ATH10K_DEBUGFS */
1240
1241 #ifdef CONFIG_ATH10K_DEBUG
1242 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
1243                 const char *fmt, ...)
1244 {
1245         struct va_format vaf;
1246         va_list args;
1247
1248         va_start(args, fmt);
1249
1250         vaf.fmt = fmt;
1251         vaf.va = &args;
1252
1253         if (ath10k_debug_mask & mask)
1254                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
1255
1256         trace_ath10k_log_dbg(ar, mask, &vaf);
1257
1258         va_end(args);
1259 }
1260 EXPORT_SYMBOL(ath10k_dbg);
1261
1262 void ath10k_dbg_dump(struct ath10k *ar,
1263                      enum ath10k_debug_mask mask,
1264                      const char *msg, const char *prefix,
1265                      const void *buf, size_t len)
1266 {
1267         char linebuf[256];
1268         unsigned int linebuflen;
1269         const void *ptr;
1270
1271         if (ath10k_debug_mask & mask) {
1272                 if (msg)
1273                         ath10k_dbg(ar, mask, "%s\n", msg);
1274
1275                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
1276                         linebuflen = 0;
1277                         linebuflen += scnprintf(linebuf + linebuflen,
1278                                                 sizeof(linebuf) - linebuflen,
1279                                                 "%s%08x: ",
1280                                                 (prefix ? prefix : ""),
1281                                                 (unsigned int)(ptr - buf));
1282                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
1283                                            linebuf + linebuflen,
1284                                            sizeof(linebuf) - linebuflen, true);
1285                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
1286                 }
1287         }
1288
1289         /* tracing code doesn't like null strings :/ */
1290         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
1291                                   buf, len);
1292 }
1293 EXPORT_SYMBOL(ath10k_dbg_dump);
1294
1295 #endif /* CONFIG_ATH10K_DEBUG */