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 static int ath10k_printk(const char *level, const char *fmt, ...)
 110 {
 111         struct va_format vaf;
 112         va_list args;
 113         int rtn;
 114
 115         va_start(args, fmt);
 116
 117         vaf.fmt = fmt;
 118         vaf.va = &args;
 119
 120         rtn = printk("%sath10k: %pV", level, &vaf);
 121
 122         va_end(args);
 123
 124         return rtn;
 125 }
 126
 127 int ath10k_info(const char *fmt, ...)
 128 {
 129         struct va_format vaf = {
 130                 .fmt = fmt,
 131         };
 132         va_list args;
 133         int ret;
 134
 135         va_start(args, fmt);
 136         vaf.va = &args;
 137         ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
 138         trace_ath10k_log_info(&vaf);
 139         va_end(args);
 140
 141         return ret;
 142 }
 143 EXPORT_SYMBOL(ath10k_info);
 144
 145 void ath10k_print_driver_info(struct ath10k *ar)
 146 {
 147         ath10k_info("%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d\n",
 148                     ar->hw_params.name,
 149                     ar->target_version,
 150                     ar->chip_id,
 151                     ar->hw->wiphy->fw_version,
 152                     ar->fw_api,
 153                     ar->htt.target_version_major,
 154                     ar->htt.target_version_minor);
 155         ath10k_info("debug %d debugfs %d tracing %d dfs %d\n",
 156                     config_enabled(CONFIG_ATH10K_DEBUG),
 157                     config_enabled(CONFIG_ATH10K_DEBUGFS),
 158                     config_enabled(CONFIG_ATH10K_TRACING),
 159                     config_enabled(CONFIG_ATH10K_DFS_CERTIFIED));
 160 }
 161 EXPORT_SYMBOL(ath10k_print_driver_info);
 162
 163 int ath10k_err(const char *fmt, ...)
 164 {
 165         struct va_format vaf = {
 166                 .fmt = fmt,
 167         };
 168         va_list args;
 169         int ret;
 170
 171         va_start(args, fmt);
 172         vaf.va = &args;
 173         ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
 174         trace_ath10k_log_err(&vaf);
 175         va_end(args);
 176
 177         return ret;
 178 }
 179 EXPORT_SYMBOL(ath10k_err);
 180
 181 int ath10k_warn(const char *fmt, ...)
 182 {
 183         struct va_format vaf = {
 184                 .fmt = fmt,
 185         };
 186         va_list args;
 187         int ret = 0;
 188
 189         va_start(args, fmt);
 190         vaf.va = &args;
 191
 192         if (net_ratelimit())
 193                 ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
 194
 195         trace_ath10k_log_warn(&vaf);
 196
 197         va_end(args);
 198
 199         return ret;
 200 }
 201 EXPORT_SYMBOL(ath10k_warn);
 202
 203 #ifdef CONFIG_ATH10K_DEBUGFS
 204
 205 void ath10k_debug_read_service_map(struct ath10k *ar,
 206                                    void *service_map,
 207                                    size_t map_size)
 208 {
 209         memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
 210 }
 211
 212 static ssize_t ath10k_read_wmi_services(struct file *file,
 213                                         char __user *user_buf,
 214                                         size_t count, loff_t *ppos)
 215 {
 216         struct ath10k *ar = file->private_data;
 217         char *buf;
 218         unsigned int len = 0, buf_len = 4096;
 219         const char *name;
 220         ssize_t ret_cnt;
 221         bool enabled;
 222         int i;
 223
 224         buf = kzalloc(buf_len, GFP_KERNEL);
 225         if (!buf)
 226                 return -ENOMEM;
 227
 228         mutex_lock(&ar->conf_mutex);
 229
 230         if (len > buf_len)
 231                 len = buf_len;
 232
 233         for (i = 0; i < WMI_MAX_SERVICE; i++) {
 234                 enabled = test_bit(i, ar->debug.wmi_service_bitmap);
 235                 name = wmi_service_name(i);
 236
 237                 if (!name) {
 238                         if (enabled)
 239                                 len += scnprintf(buf + len, buf_len - len,
 240                                                  "%-40s %s (bit %d)\n",
 241                                                  "unknown", "enabled", i);
 242
 243                         continue;
 244                 }
 245
 246                 len += scnprintf(buf + len, buf_len - len,
 247                                  "%-40s %s\n",
 248                                  name, enabled ? "enabled" : "-");
 249         }
 250
 251         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 252
 253         mutex_unlock(&ar->conf_mutex);
 254
 255         kfree(buf);
 256         return ret_cnt;
 257 }
 258
 259 static const struct file_operations fops_wmi_services = {
 260         .read = ath10k_read_wmi_services,
 261         .open = simple_open,
 262         .owner = THIS_MODULE,
 263         .llseek = default_llseek,
 264 };
 265
 266 void ath10k_debug_read_target_stats(struct ath10k *ar,
 267                                     struct wmi_stats_event *ev)
 268 {
 269         u8 *tmp = ev->data;
 270         struct ath10k_target_stats *stats;
 271         int num_pdev_stats, num_vdev_stats, num_peer_stats;
 272         struct wmi_pdev_stats_10x *ps;
 273         int i;
 274
 275         spin_lock_bh(&ar->data_lock);
 276
 277         stats = &ar->debug.target_stats;
 278
 279         num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
 280         num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
 281         num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
 282
 283         if (num_pdev_stats) {
 284                 ps = (struct wmi_pdev_stats_10x *)tmp;
 285
 286                 stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
 287                 stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
 288                 stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
 289                 stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
 290                 stats->cycle_count = __le32_to_cpu(ps->cycle_count);
 291                 stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
 292                 stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
 293
 294                 stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
 295                 stats->comp_delivered =
 296                         __le32_to_cpu(ps->wal.tx.comp_delivered);
 297                 stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
 298                 stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
 299                 stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
 300                 stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
 301                 stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
 302                 stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
 303                 stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
 304                 stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
 305                 stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
 306                 stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
 307                 stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
 308                 stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
 309                 stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
 310                 stats->sw_retry_failure =
 311                         __le32_to_cpu(ps->wal.tx.sw_retry_failure);
 312                 stats->illgl_rate_phy_err =
 313                         __le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
 314                 stats->pdev_cont_xretry =
 315                         __le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
 316                 stats->pdev_tx_timeout =
 317                         __le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
 318                 stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
 319                 stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
 320                 stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
 321
 322                 stats->mid_ppdu_route_change =
 323                         __le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
 324                 stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
 325                 stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
 326                 stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
 327                 stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
 328                 stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
 329                 stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
 330                 stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
 331                 stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
 332                 stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
 333                 stats->oversize_amsdu =
 334                         __le32_to_cpu(ps->wal.rx.oversize_amsdu);
 335                 stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
 336                 stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
 337                 stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
 338
 339                 if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 340                              ar->fw_features)) {
 341                         stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
 342                         stats->rts_bad = __le32_to_cpu(ps->rts_bad);
 343                         stats->rts_good = __le32_to_cpu(ps->rts_good);
 344                         stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
 345                         stats->no_beacons = __le32_to_cpu(ps->no_beacons);
 346                         stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
 347                         tmp += sizeof(struct wmi_pdev_stats_10x);
 348                 } else {
 349                         tmp += sizeof(struct wmi_pdev_stats_old);
 350                 }
 351         }
 352
 353         /* 0 or max vdevs */
 354         /* Currently firmware does not support VDEV stats */
 355         if (num_vdev_stats) {
 356                 struct wmi_vdev_stats *vdev_stats;
 357
 358                 for (i = 0; i < num_vdev_stats; i++) {
 359                         vdev_stats = (struct wmi_vdev_stats *)tmp;
 360                         tmp += sizeof(struct wmi_vdev_stats);
 361                 }
 362         }
 363
 364         if (num_peer_stats) {
 365                 struct wmi_peer_stats_10x *peer_stats;
 366                 struct ath10k_peer_stat *s;
 367
 368                 stats->peers = num_peer_stats;
 369
 370                 for (i = 0; i < num_peer_stats; i++) {
 371                         peer_stats = (struct wmi_peer_stats_10x *)tmp;
 372                         s = &stats->peer_stat[i];
 373
 374                         memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
 375                                ETH_ALEN);
 376                         s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 377                         s->peer_tx_rate =
 378                                 __le32_to_cpu(peer_stats->peer_tx_rate);
 379                         if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 380                                      ar->fw_features)) {
 381                                 s->peer_rx_rate =
 382                                         __le32_to_cpu(peer_stats->peer_rx_rate);
 383                                 tmp += sizeof(struct wmi_peer_stats_10x);
 384
 385                         } else {
 386                                 tmp += sizeof(struct wmi_peer_stats_old);
 387                         }
 388                 }
 389         }
 390
 391         spin_unlock_bh(&ar->data_lock);
 392         complete(&ar->debug.event_stats_compl);
 393 }
 394
 395 static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 396                                     size_t count, loff_t *ppos)
 397 {
 398         struct ath10k *ar = file->private_data;
 399         struct ath10k_target_stats *fw_stats;
 400         char *buf = NULL;
 401         unsigned int len = 0, buf_len = 8000;
 402         ssize_t ret_cnt = 0;
 403         long left;
 404         int i;
 405         int ret;
 406
 407         fw_stats = &ar->debug.target_stats;
 408
 409         mutex_lock(&ar->conf_mutex);
 410
 411         if (ar->state != ATH10K_STATE_ON)
 412                 goto exit;
 413
 414         buf = kzalloc(buf_len, GFP_KERNEL);
 415         if (!buf)
 416                 goto exit;
 417
 418         ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
 419         if (ret) {
 420                 ath10k_warn("could not request stats (%d)\n", ret);
 421                 goto exit;
 422         }
 423
 424         left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
 425         if (left <= 0)
 426                 goto exit;
 427
 428         spin_lock_bh(&ar->data_lock);
 429         len += scnprintf(buf + len, buf_len - len, "\n");
 430         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 431                          "ath10k PDEV stats");
 432         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 433                                  "=================");
 434
 435         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 436                          "Channel noise floor", fw_stats->ch_noise_floor);
 437         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 438                          "Channel TX power", fw_stats->chan_tx_power);
 439         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 440                          "TX frame count", fw_stats->tx_frame_count);
 441         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 442                          "RX frame count", fw_stats->rx_frame_count);
 443         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 444                          "RX clear count", fw_stats->rx_clear_count);
 445         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 446                          "Cycle count", fw_stats->cycle_count);
 447         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 448                          "PHY error count", fw_stats->phy_err_count);
 449         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 450                          "RTS bad count", fw_stats->rts_bad);
 451         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 452                          "RTS good count", fw_stats->rts_good);
 453         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 454                          "FCS bad count", fw_stats->fcs_bad);
 455         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 456                          "No beacon count", fw_stats->no_beacons);
 457         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 458                          "MIB int count", fw_stats->mib_int_count);
 459
 460         len += scnprintf(buf + len, buf_len - len, "\n");
 461         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 462                          "ath10k PDEV TX stats");
 463         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 464                                  "=================");
 465
 466         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 467                          "HTT cookies queued", fw_stats->comp_queued);
 468         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 469                          "HTT cookies disp.", fw_stats->comp_delivered);
 470         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 471                          "MSDU queued", fw_stats->msdu_enqued);
 472         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 473                          "MPDU queued", fw_stats->mpdu_enqued);
 474         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 475                          "MSDUs dropped", fw_stats->wmm_drop);
 476         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 477                          "Local enqued", fw_stats->local_enqued);
 478         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 479                          "Local freed", fw_stats->local_freed);
 480         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 481                          "HW queued", fw_stats->hw_queued);
 482         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 483                          "PPDUs reaped", fw_stats->hw_reaped);
 484         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 485                          "Num underruns", fw_stats->underrun);
 486         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 487                          "PPDUs cleaned", fw_stats->tx_abort);
 488         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 489                          "MPDUs requed", fw_stats->mpdus_requed);
 490         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 491                          "Excessive retries", fw_stats->tx_ko);
 492         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 493                          "HW rate", fw_stats->data_rc);
 494         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 495                          "Sched self tiggers", fw_stats->self_triggers);
 496         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 497                          "Dropped due to SW retries",
 498                          fw_stats->sw_retry_failure);
 499         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 500                          "Illegal rate phy errors",
 501                          fw_stats->illgl_rate_phy_err);
 502         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 503                          "Pdev continous xretry", fw_stats->pdev_cont_xretry);
 504         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 505                          "TX timeout", fw_stats->pdev_tx_timeout);
 506         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 507                          "PDEV resets", fw_stats->pdev_resets);
 508         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 509                          "PHY underrun", fw_stats->phy_underrun);
 510         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 511                          "MPDU is more than txop limit", fw_stats->txop_ovf);
 512
 513         len += scnprintf(buf + len, buf_len - len, "\n");
 514         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 515                          "ath10k PDEV RX stats");
 516         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 517                                  "=================");
 518
 519         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 520                          "Mid PPDU route change",
 521                          fw_stats->mid_ppdu_route_change);
 522         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 523                          "Tot. number of statuses", fw_stats->status_rcvd);
 524         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 525                          "Extra frags on rings 0", fw_stats->r0_frags);
 526         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 527                          "Extra frags on rings 1", fw_stats->r1_frags);
 528         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 529                          "Extra frags on rings 2", fw_stats->r2_frags);
 530         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 531                          "Extra frags on rings 3", fw_stats->r3_frags);
 532         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 533                          "MSDUs delivered to HTT", fw_stats->htt_msdus);
 534         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 535                          "MPDUs delivered to HTT", fw_stats->htt_mpdus);
 536         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 537                          "MSDUs delivered to stack", fw_stats->loc_msdus);
 538         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 539                          "MPDUs delivered to stack", fw_stats->loc_mpdus);
 540         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 541                          "Oversized AMSUs", fw_stats->oversize_amsdu);
 542         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 543                          "PHY errors", fw_stats->phy_errs);
 544         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 545                          "PHY errors drops", fw_stats->phy_err_drop);
 546         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 547                          "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
 548
 549         len += scnprintf(buf + len, buf_len - len, "\n");
 550         len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
 551                          "ath10k PEER stats", fw_stats->peers);
 552         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 553                                  "=================");
 554
 555         for (i = 0; i < fw_stats->peers; i++) {
 556                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 557                                  "Peer MAC address",
 558                                  fw_stats->peer_stat[i].peer_macaddr);
 559                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 560                                  "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
 561                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 562                                  "Peer TX rate",
 563                                  fw_stats->peer_stat[i].peer_tx_rate);
 564                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 565                                  "Peer RX rate",
 566                                  fw_stats->peer_stat[i].peer_rx_rate);
 567                 len += scnprintf(buf + len, buf_len - len, "\n");
 568         }
 569         spin_unlock_bh(&ar->data_lock);
 570
 571         if (len > buf_len)
 572                 len = buf_len;
 573
 574         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 575
 576 exit:
 577         mutex_unlock(&ar->conf_mutex);
 578         kfree(buf);
 579         return ret_cnt;
 580 }
 581
 582 static const struct file_operations fops_fw_stats = {
 583         .read = ath10k_read_fw_stats,
 584         .open = simple_open,
 585         .owner = THIS_MODULE,
 586         .llseek = default_llseek,
 587 };
 588
 589 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 590                                              char __user *user_buf,
 591                                              size_t count, loff_t *ppos)
 592 {
 593         const char buf[] = "To simulate firmware crash write one of the"
 594                            " keywords to this file:\n `soft` - this will send"
 595                            " WMI_FORCE_FW_HANG_ASSERT to firmware if FW"
 596                            " supports that command.\n `hard` - this will send"
 597                            " to firmware command with illegal parameters"
 598                            " causing firmware crash.\n";
 599
 600         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 601 }
 602
 603 /* Simulate firmware crash:
 604  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 605  * recoverable by warm firmware reset.
 606  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 607  * vdev id. This is hard firmware crash because it is recoverable only by cold
 608  * firmware reset.
 609  */
 610 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 611                                               const char __user *user_buf,
 612                                               size_t count, loff_t *ppos)
 613 {
 614         struct ath10k *ar = file->private_data;
 615         char buf[32];
 616         int ret;
 617
 618         mutex_lock(&ar->conf_mutex);
 619
 620         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 621
 622         /* make sure that buf is null terminated */
 623         buf[sizeof(buf) - 1] = 0;
 624
 625         if (ar->state != ATH10K_STATE_ON &&
 626             ar->state != ATH10K_STATE_RESTARTED) {
 627                 ret = -ENETDOWN;
 628                 goto exit;
 629         }
 630
 631         /* drop the possible '\n' from the end */
 632         if (buf[count - 1] == '\n') {
 633                 buf[count - 1] = 0;
 634                 count--;
 635         }
 636
 637         if (!strcmp(buf, "soft")) {
 638                 ath10k_info("simulating soft firmware crash\n");
 639                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 640         } else if (!strcmp(buf, "hard")) {
 641                 ath10k_info("simulating hard firmware crash\n");
 642                 /* 0x7fff is vdev id, and it is always out of range for all
 643                  * firmware variants in order to force a firmware crash.
 644                  */
 645                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 646                                         ar->wmi.vdev_param->rts_threshold, 0);
 647         } else {
 648                 ret = -EINVAL;
 649                 goto exit;
 650         }
 651
 652         if (ret) {
 653                 ath10k_warn("failed to simulate firmware crash: %d\n", ret);
 654                 goto exit;
 655         }
 656
 657         ret = count;
 658
 659 exit:
 660         mutex_unlock(&ar->conf_mutex);
 661         return ret;
 662 }
 663
 664 static const struct file_operations fops_simulate_fw_crash = {
 665         .read = ath10k_read_simulate_fw_crash,
 666         .write = ath10k_write_simulate_fw_crash,
 667         .open = simple_open,
 668         .owner = THIS_MODULE,
 669         .llseek = default_llseek,
 670 };
 671
 672 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 673                                    size_t count, loff_t *ppos)
 674 {
 675         struct ath10k *ar = file->private_data;
 676         unsigned int len;
 677         char buf[50];
 678
 679         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 680
 681         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 682 }
 683
 684 static const struct file_operations fops_chip_id = {
 685         .read = ath10k_read_chip_id,
 686         .open = simple_open,
 687         .owner = THIS_MODULE,
 688         .llseek = default_llseek,
 689 };
 690
 691 struct ath10k_fw_crash_data *
 692 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 693 {
 694         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 695
 696         lockdep_assert_held(&ar->data_lock);
 697
 698         crash_data->crashed_since_read = true;
 699         uuid_le_gen(&crash_data->uuid);
 700         getnstimeofday(&crash_data->timestamp);
 701
 702         return crash_data;
 703 }
 704 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 705
 706 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 707 {
 708         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 709         struct ath10k_dump_file_data *dump_data;
 710         struct ath10k_tlv_dump_data *dump_tlv;
 711         int hdr_len = sizeof(*dump_data);
 712         unsigned int len, sofar = 0;
 713         unsigned char *buf;
 714
 715         len = hdr_len;
 716         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 717
 718         sofar += hdr_len;
 719
 720         /* This is going to get big when we start dumping FW RAM and such,
 721          * so go ahead and use vmalloc.
 722          */
 723         buf = vzalloc(len);
 724         if (!buf)
 725                 return NULL;
 726
 727         spin_lock_bh(&ar->data_lock);
 728
 729         if (!crash_data->crashed_since_read) {
 730                 spin_unlock_bh(&ar->data_lock);
 731                 vfree(buf);
 732                 return NULL;
 733         }
 734
 735         dump_data = (struct ath10k_dump_file_data *)(buf);
 736         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 737                 sizeof(dump_data->df_magic));
 738         dump_data->len = cpu_to_le32(len);
 739
 740         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 741
 742         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 743         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 744         dump_data->bus_type = cpu_to_le32(0);
 745         dump_data->target_version = cpu_to_le32(ar->target_version);
 746         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 747         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 748         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 749         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 750         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 751         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 752         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 753         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 754         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 755         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 756
 757         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 758                 sizeof(dump_data->fw_ver));
 759
 760         dump_data->kernel_ver_code = cpu_to_le32(LINUX_VERSION_CODE);
 761         strlcpy(dump_data->kernel_ver, VERMAGIC_STRING,
 762                 sizeof(dump_data->kernel_ver));
 763
 764         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 765         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 766
 767         /* Gather crash-dump */
 768         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 769         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 770         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 771         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 772                sizeof(crash_data->registers));
 773         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 774
 775         ar->debug.fw_crash_data->crashed_since_read = false;
 776
 777         spin_unlock_bh(&ar->data_lock);
 778
 779         return dump_data;
 780 }
 781
 782 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 783 {
 784         struct ath10k *ar = inode->i_private;
 785         struct ath10k_dump_file_data *dump;
 786
 787         dump = ath10k_build_dump_file(ar);
 788         if (!dump)
 789                 return -ENODATA;
 790
 791         file->private_data = dump;
 792
 793         return 0;
 794 }
 795
 796 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
 797                                          char __user *user_buf,
 798                                          size_t count, loff_t *ppos)
 799 {
 800         struct ath10k_dump_file_data *dump_file = file->private_data;
 801
 802         return simple_read_from_buffer(user_buf, count, ppos,
 803                                        dump_file,
 804                                        le32_to_cpu(dump_file->len));
 805 }
 806
 807 static int ath10k_fw_crash_dump_release(struct inode *inode,
 808                                         struct file *file)
 809 {
 810         vfree(file->private_data);
 811
 812         return 0;
 813 }
 814
 815 static const struct file_operations fops_fw_crash_dump = {
 816         .open = ath10k_fw_crash_dump_open,
 817         .read = ath10k_fw_crash_dump_read,
 818         .release = ath10k_fw_crash_dump_release,
 819         .owner = THIS_MODULE,
 820         .llseek = default_llseek,
 821 };
 822
 823 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 824 {
 825         u64 cookie;
 826         int ret;
 827
 828         lockdep_assert_held(&ar->conf_mutex);
 829
 830         if (ar->debug.htt_stats_mask == 0)
 831                 /* htt stats are disabled */
 832                 return 0;
 833
 834         if (ar->state != ATH10K_STATE_ON)
 835                 return 0;
 836
 837         cookie = get_jiffies_64();
 838
 839         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 840                                        cookie);
 841         if (ret) {
 842                 ath10k_warn("failed to send htt stats request: %d\n", ret);
 843                 return ret;
 844         }
 845
 846         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 847                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 848
 849         return 0;
 850 }
 851
 852 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 853 {
 854         struct ath10k *ar = container_of(work, struct ath10k,
 855                                          debug.htt_stats_dwork.work);
 856
 857         mutex_lock(&ar->conf_mutex);
 858
 859         ath10k_debug_htt_stats_req(ar);
 860
 861         mutex_unlock(&ar->conf_mutex);
 862 }
 863
 864 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 865                                             char __user *user_buf,
 866                                             size_t count, loff_t *ppos)
 867 {
 868         struct ath10k *ar = file->private_data;
 869         char buf[32];
 870         unsigned int len;
 871
 872         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 873
 874         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 875 }
 876
 877 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 878                                              const char __user *user_buf,
 879                                              size_t count, loff_t *ppos)
 880 {
 881         struct ath10k *ar = file->private_data;
 882         unsigned long mask;
 883         int ret;
 884
 885         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 886         if (ret)
 887                 return ret;
 888
 889         /* max 8 bit masks (for now) */
 890         if (mask > 0xff)
 891                 return -E2BIG;
 892
 893         mutex_lock(&ar->conf_mutex);
 894
 895         ar->debug.htt_stats_mask = mask;
 896
 897         ret = ath10k_debug_htt_stats_req(ar);
 898         if (ret)
 899                 goto out;
 900
 901         ret = count;
 902
 903 out:
 904         mutex_unlock(&ar->conf_mutex);
 905
 906         return ret;
 907 }
 908
 909 static const struct file_operations fops_htt_stats_mask = {
 910         .read = ath10k_read_htt_stats_mask,
 911         .write = ath10k_write_htt_stats_mask,
 912         .open = simple_open,
 913         .owner = THIS_MODULE,
 914         .llseek = default_llseek,
 915 };
 916
 917 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
 918                                                char __user *user_buf,
 919                                                size_t count, loff_t *ppos)
 920 {
 921         struct ath10k *ar = file->private_data;
 922         char buf[64];
 923         u8 amsdu = 3, ampdu = 64;
 924         unsigned int len;
 925
 926         mutex_lock(&ar->conf_mutex);
 927
 928         if (ar->debug.htt_max_amsdu)
 929                 amsdu = ar->debug.htt_max_amsdu;
 930
 931         if (ar->debug.htt_max_ampdu)
 932                 ampdu = ar->debug.htt_max_ampdu;
 933
 934         mutex_unlock(&ar->conf_mutex);
 935
 936         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
 937
 938         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 939 }
 940
 941 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
 942                                                 const char __user *user_buf,
 943                                                 size_t count, loff_t *ppos)
 944 {
 945         struct ath10k *ar = file->private_data;
 946         int res;
 947         char buf[64];
 948         unsigned int amsdu, ampdu;
 949
 950         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 951
 952         /* make sure that buf is null terminated */
 953         buf[sizeof(buf) - 1] = 0;
 954
 955         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
 956
 957         if (res != 2)
 958                 return -EINVAL;
 959
 960         mutex_lock(&ar->conf_mutex);
 961
 962         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
 963         if (res)
 964                 goto out;
 965
 966         res = count;
 967         ar->debug.htt_max_amsdu = amsdu;
 968         ar->debug.htt_max_ampdu = ampdu;
 969
 970 out:
 971         mutex_unlock(&ar->conf_mutex);
 972         return res;
 973 }
 974
 975 static const struct file_operations fops_htt_max_amsdu_ampdu = {
 976         .read = ath10k_read_htt_max_amsdu_ampdu,
 977         .write = ath10k_write_htt_max_amsdu_ampdu,
 978         .open = simple_open,
 979         .owner = THIS_MODULE,
 980         .llseek = default_llseek,
 981 };
 982
 983 static ssize_t ath10k_read_fw_dbglog(struct file *file,
 984                                             char __user *user_buf,
 985                                             size_t count, loff_t *ppos)
 986 {
 987         struct ath10k *ar = file->private_data;
 988         unsigned int len;
 989         char buf[32];
 990
 991         len = scnprintf(buf, sizeof(buf), "0x%08x\n",
 992                         ar->debug.fw_dbglog_mask);
 993
 994         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 995 }
 996
 997 static ssize_t ath10k_write_fw_dbglog(struct file *file,
 998                                       const char __user *user_buf,
 999                                       size_t count, loff_t *ppos)
1000 {
1001         struct ath10k *ar = file->private_data;
1002         unsigned long mask;
1003         int ret;
1004
1005         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1006         if (ret)
1007                 return ret;
1008
1009         mutex_lock(&ar->conf_mutex);
1010
1011         ar->debug.fw_dbglog_mask = mask;
1012
1013         if (ar->state == ATH10K_STATE_ON) {
1014                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1015                 if (ret) {
1016                         ath10k_warn("dbglog cfg failed from debugfs: %d\n",
1017                                     ret);
1018                         goto exit;
1019                 }
1020         }
1021
1022         ret = count;
1023
1024 exit:
1025         mutex_unlock(&ar->conf_mutex);
1026
1027         return ret;
1028 }
1029
1030 static const struct file_operations fops_fw_dbglog = {
1031         .read = ath10k_read_fw_dbglog,
1032         .write = ath10k_write_fw_dbglog,
1033         .open = simple_open,
1034         .owner = THIS_MODULE,
1035         .llseek = default_llseek,
1036 };
1037
1038 int ath10k_debug_start(struct ath10k *ar)
1039 {
1040         int ret;
1041
1042         lockdep_assert_held(&ar->conf_mutex);
1043
1044         ret = ath10k_debug_htt_stats_req(ar);
1045         if (ret)
1046                 /* continue normally anyway, this isn't serious */
1047                 ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
1048
1049         if (ar->debug.fw_dbglog_mask) {
1050                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
1051                 if (ret)
1052                         /* not serious */
1053                         ath10k_warn("failed to enable dbglog during start: %d",
1054                                     ret);
1055         }
1056
1057         return 0;
1058 }
1059
1060 void ath10k_debug_stop(struct ath10k *ar)
1061 {
1062         lockdep_assert_held(&ar->conf_mutex);
1063
1064         /* Must not use _sync to avoid deadlock, we do that in
1065          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1066          * warning from del_timer(). */
1067         if (ar->debug.htt_stats_mask != 0)
1068                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1069
1070         ar->debug.htt_max_amsdu = 0;
1071         ar->debug.htt_max_ampdu = 0;
1072 }
1073
1074 static ssize_t ath10k_write_simulate_radar(struct file *file,
1075                                            const char __user *user_buf,
1076                                            size_t count, loff_t *ppos)
1077 {
1078         struct ath10k *ar = file->private_data;
1079
1080         ieee80211_radar_detected(ar->hw);
1081
1082         return count;
1083 }
1084
1085 static const struct file_operations fops_simulate_radar = {
1086         .write = ath10k_write_simulate_radar,
1087         .open = simple_open,
1088         .owner = THIS_MODULE,
1089         .llseek = default_llseek,
1090 };
1091
1092 #define ATH10K_DFS_STAT(s, p) (\
1093         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1094                          ar->debug.dfs_stats.p))
1095
1096 #define ATH10K_DFS_POOL_STAT(s, p) (\
1097         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1098                          ar->debug.dfs_pool_stats.p))
1099
1100 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1101                                      size_t count, loff_t *ppos)
1102 {
1103         int retval = 0, len = 0;
1104         const int size = 8000;
1105         struct ath10k *ar = file->private_data;
1106         char *buf;
1107
1108         buf = kzalloc(size, GFP_KERNEL);
1109         if (buf == NULL)
1110                 return -ENOMEM;
1111
1112         if (!ar->dfs_detector) {
1113                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1114                 goto exit;
1115         }
1116
1117         ar->debug.dfs_pool_stats =
1118                         ar->dfs_detector->get_stats(ar->dfs_detector);
1119
1120         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1121
1122         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1123         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1124         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1125         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1126         ATH10K_DFS_STAT("Radars detected", radar_detected);
1127
1128         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1129         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1130         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1131         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1132         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1133         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1134         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1135         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1136
1137 exit:
1138         if (len > size)
1139                 len = size;
1140
1141         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1142         kfree(buf);
1143
1144         return retval;
1145 }
1146
1147 static const struct file_operations fops_dfs_stats = {
1148         .read = ath10k_read_dfs_stats,
1149         .open = simple_open,
1150         .owner = THIS_MODULE,
1151         .llseek = default_llseek,
1152 };
1153
1154 int ath10k_debug_create(struct ath10k *ar)
1155 {
1156         int ret;
1157
1158         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1159         if (!ar->debug.fw_crash_data) {
1160                 ret = -ENOMEM;
1161                 goto err;
1162         }
1163
1164         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
1165                                                    ar->hw->wiphy->debugfsdir);
1166         if (!ar->debug.debugfs_phy) {
1167                 ret = -ENOMEM;
1168                 goto err_free_fw_crash_data;
1169         }
1170
1171         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
1172                           ath10k_debug_htt_stats_dwork);
1173
1174         init_completion(&ar->debug.event_stats_compl);
1175
1176         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
1177                             &fops_fw_stats);
1178
1179         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
1180                             &fops_wmi_services);
1181
1182         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
1183                             ar, &fops_simulate_fw_crash);
1184
1185         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
1186                             ar, &fops_fw_crash_dump);
1187
1188         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
1189                             ar, &fops_chip_id);
1190
1191         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
1192                             ar, &fops_htt_stats_mask);
1193
1194         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
1195                             ar->debug.debugfs_phy, ar,
1196                             &fops_htt_max_amsdu_ampdu);
1197
1198         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
1199                             ar, &fops_fw_dbglog);
1200
1201         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
1202                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
1203                                     ar->debug.debugfs_phy, ar,
1204                                     &fops_simulate_radar);
1205
1206                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
1207                                     ar->debug.debugfs_phy,
1208                                     &ar->dfs_block_radar_events);
1209
1210                 debugfs_create_file("dfs_stats", S_IRUSR,
1211                                     ar->debug.debugfs_phy, ar,
1212                                     &fops_dfs_stats);
1213         }
1214
1215         return 0;
1216
1217 err_free_fw_crash_data:
1218         vfree(ar->debug.fw_crash_data);
1219
1220 err:
1221         return ret;
1222 }
1223
1224 void ath10k_debug_destroy(struct ath10k *ar)
1225 {
1226         vfree(ar->debug.fw_crash_data);
1227         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
1228 }
1229
1230 #endif /* CONFIG_ATH10K_DEBUGFS */
1231
1232 #ifdef CONFIG_ATH10K_DEBUG
1233 void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
1234 {
1235         struct va_format vaf;
1236         va_list args;
1237
1238         va_start(args, fmt);
1239
1240         vaf.fmt = fmt;
1241         vaf.va = &args;
1242
1243         if (ath10k_debug_mask & mask)
1244                 ath10k_printk(KERN_DEBUG, "%pV", &vaf);
1245
1246         trace_ath10k_log_dbg(mask, &vaf);
1247
1248         va_end(args);
1249 }
1250 EXPORT_SYMBOL(ath10k_dbg);
1251
1252 void ath10k_dbg_dump(enum ath10k_debug_mask mask,
1253                      const char *msg, const char *prefix,
1254                      const void *buf, size_t len)
1255 {
1256         if (ath10k_debug_mask & mask) {
1257                 if (msg)
1258                         ath10k_dbg(mask, "%s\n", msg);
1259
1260                 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
1261         }
1262
1263         /* tracing code doesn't like null strings :/ */
1264         trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
1265                                   buf, len);
1266 }
1267 EXPORT_SYMBOL(ath10k_dbg_dump);
1268
1269 #endif /* CONFIG_ATH10K_DEBUG */