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
  21 #include "core.h"
  22 #include "debug.h"
  23
  24 static int ath10k_printk(const char *level, const char *fmt, ...)
  25 {
  26         struct va_format vaf;
  27         va_list args;
  28         int rtn;
  29
  30         va_start(args, fmt);
  31
  32         vaf.fmt = fmt;
  33         vaf.va = &args;
  34
  35         rtn = printk("%sath10k: %pV", level, &vaf);
  36
  37         va_end(args);
  38
  39         return rtn;
  40 }
  41
  42 int ath10k_info(const char *fmt, ...)
  43 {
  44         struct va_format vaf = {
  45                 .fmt = fmt,
  46         };
  47         va_list args;
  48         int ret;
  49
  50         va_start(args, fmt);
  51         vaf.va = &args;
  52         ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
  53         trace_ath10k_log_info(&vaf);
  54         va_end(args);
  55
  56         return ret;
  57 }
  58 EXPORT_SYMBOL(ath10k_info);
  59
  60 int ath10k_err(const char *fmt, ...)
  61 {
  62         struct va_format vaf = {
  63                 .fmt = fmt,
  64         };
  65         va_list args;
  66         int ret;
  67
  68         va_start(args, fmt);
  69         vaf.va = &args;
  70         ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
  71         trace_ath10k_log_err(&vaf);
  72         va_end(args);
  73
  74         return ret;
  75 }
  76 EXPORT_SYMBOL(ath10k_err);
  77
  78 int ath10k_warn(const char *fmt, ...)
  79 {
  80         struct va_format vaf = {
  81                 .fmt = fmt,
  82         };
  83         va_list args;
  84         int ret = 0;
  85
  86         va_start(args, fmt);
  87         vaf.va = &args;
  88
  89         if (net_ratelimit())
  90                 ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
  91
  92         trace_ath10k_log_warn(&vaf);
  93
  94         va_end(args);
  95
  96         return ret;
  97 }
  98 EXPORT_SYMBOL(ath10k_warn);
  99
 100 #ifdef CONFIG_ATH10K_DEBUGFS
 101
 102 void ath10k_debug_read_service_map(struct ath10k *ar,
 103                                    void *service_map,
 104                                    size_t map_size)
 105 {
 106         memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
 107 }
 108
 109 static ssize_t ath10k_read_wmi_services(struct file *file,
 110                                         char __user *user_buf,
 111                                         size_t count, loff_t *ppos)
 112 {
 113         struct ath10k *ar = file->private_data;
 114         char *buf;
 115         unsigned int len = 0, buf_len = 1500;
 116         const char *status;
 117         ssize_t ret_cnt;
 118         int i;
 119
 120         buf = kzalloc(buf_len, GFP_KERNEL);
 121         if (!buf)
 122                 return -ENOMEM;
 123
 124         mutex_lock(&ar->conf_mutex);
 125
 126         if (len > buf_len)
 127                 len = buf_len;
 128
 129         for (i = 0; i < WMI_SERVICE_LAST; i++) {
 130                 if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
 131                         status = "enabled";
 132                 else
 133                         status = "disabled";
 134
 135                 len += scnprintf(buf + len, buf_len - len,
 136                                  "0x%02x - %20s - %s\n",
 137                                  i, wmi_service_name(i), status);
 138         }
 139
 140         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 141
 142         mutex_unlock(&ar->conf_mutex);
 143
 144         kfree(buf);
 145         return ret_cnt;
 146 }
 147
 148 static const struct file_operations fops_wmi_services = {
 149         .read = ath10k_read_wmi_services,
 150         .open = simple_open,
 151         .owner = THIS_MODULE,
 152         .llseek = default_llseek,
 153 };
 154
 155 void ath10k_debug_read_target_stats(struct ath10k *ar,
 156                                     struct wmi_stats_event *ev)
 157 {
 158         u8 *tmp = ev->data;
 159         struct ath10k_target_stats *stats;
 160         int num_pdev_stats, num_vdev_stats, num_peer_stats;
 161         struct wmi_pdev_stats *ps;
 162         int i;
 163
 164         mutex_lock(&ar->conf_mutex);
 165
 166         stats = &ar->debug.target_stats;
 167
 168         num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
 169         num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
 170         num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
 171
 172         if (num_pdev_stats) {
 173                 ps = (struct wmi_pdev_stats *)tmp;
 174
 175                 stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
 176                 stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
 177                 stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
 178                 stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
 179                 stats->cycle_count = __le32_to_cpu(ps->cycle_count);
 180                 stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
 181                 stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
 182
 183                 stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
 184                 stats->comp_delivered =
 185                         __le32_to_cpu(ps->wal.tx.comp_delivered);
 186                 stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
 187                 stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
 188                 stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
 189                 stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
 190                 stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
 191                 stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
 192                 stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
 193                 stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
 194                 stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
 195                 stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
 196                 stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
 197                 stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
 198                 stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
 199                 stats->sw_retry_failure =
 200                         __le32_to_cpu(ps->wal.tx.sw_retry_failure);
 201                 stats->illgl_rate_phy_err =
 202                         __le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
 203                 stats->pdev_cont_xretry =
 204                         __le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
 205                 stats->pdev_tx_timeout =
 206                         __le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
 207                 stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
 208                 stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
 209                 stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
 210
 211                 stats->mid_ppdu_route_change =
 212                         __le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
 213                 stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
 214                 stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
 215                 stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
 216                 stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
 217                 stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
 218                 stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
 219                 stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
 220                 stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
 221                 stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
 222                 stats->oversize_amsdu =
 223                         __le32_to_cpu(ps->wal.rx.oversize_amsdu);
 224                 stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
 225                 stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
 226                 stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
 227
 228                 tmp += sizeof(struct wmi_pdev_stats);
 229         }
 230
 231         /* 0 or max vdevs */
 232         /* Currently firmware does not support VDEV stats */
 233         if (num_vdev_stats) {
 234                 struct wmi_vdev_stats *vdev_stats;
 235
 236                 for (i = 0; i < num_vdev_stats; i++) {
 237                         vdev_stats = (struct wmi_vdev_stats *)tmp;
 238                         tmp += sizeof(struct wmi_vdev_stats);
 239                 }
 240         }
 241
 242         if (num_peer_stats) {
 243                 struct wmi_peer_stats *peer_stats;
 244                 struct ath10k_peer_stat *s;
 245
 246                 stats->peers = num_peer_stats;
 247
 248                 for (i = 0; i < num_peer_stats; i++) {
 249                         peer_stats = (struct wmi_peer_stats *)tmp;
 250                         s = &stats->peer_stat[i];
 251
 252                         WMI_MAC_ADDR_TO_CHAR_ARRAY(&peer_stats->peer_macaddr,
 253                                                    s->peer_macaddr);
 254                         s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 255                         s->peer_tx_rate =
 256                                 __le32_to_cpu(peer_stats->peer_tx_rate);
 257
 258                         tmp += sizeof(struct wmi_peer_stats);
 259                 }
 260         }
 261
 262         mutex_unlock(&ar->conf_mutex);
 263         complete(&ar->debug.event_stats_compl);
 264 }
 265
 266 static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 267                                     size_t count, loff_t *ppos)
 268 {
 269         struct ath10k *ar = file->private_data;
 270         struct ath10k_target_stats *fw_stats;
 271         char *buf;
 272         unsigned int len = 0, buf_len = 2500;
 273         ssize_t ret_cnt;
 274         long left;
 275         int i;
 276         int ret;
 277
 278         fw_stats = &ar->debug.target_stats;
 279
 280         buf = kzalloc(buf_len, GFP_KERNEL);
 281         if (!buf)
 282                 return -ENOMEM;
 283
 284         ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
 285         if (ret) {
 286                 ath10k_warn("could not request stats (%d)\n", ret);
 287                 kfree(buf);
 288                 return -EIO;
 289         }
 290
 291         left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
 292
 293         if (left <= 0) {
 294                 kfree(buf);
 295                 return -ETIMEDOUT;
 296         }
 297
 298         mutex_lock(&ar->conf_mutex);
 299
 300         len += scnprintf(buf + len, buf_len - len, "\n");
 301         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 302                          "ath10k PDEV stats");
 303         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 304                                  "=================");
 305
 306         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 307                          "Channel noise floor", fw_stats->ch_noise_floor);
 308         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 309                          "Channel TX power", fw_stats->chan_tx_power);
 310         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 311                          "TX frame count", fw_stats->tx_frame_count);
 312         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 313                          "RX frame count", fw_stats->rx_frame_count);
 314         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 315                          "RX clear count", fw_stats->rx_clear_count);
 316         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 317                          "Cycle count", fw_stats->cycle_count);
 318         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 319                          "PHY error count", fw_stats->phy_err_count);
 320
 321         len += scnprintf(buf + len, buf_len - len, "\n");
 322         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 323                          "ath10k PDEV TX stats");
 324         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 325                                  "=================");
 326
 327         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 328                          "HTT cookies queued", fw_stats->comp_queued);
 329         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 330                          "HTT cookies disp.", fw_stats->comp_delivered);
 331         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 332                          "MSDU queued", fw_stats->msdu_enqued);
 333         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 334                          "MPDU queued", fw_stats->mpdu_enqued);
 335         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 336                          "MSDUs dropped", fw_stats->wmm_drop);
 337         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 338                          "Local enqued", fw_stats->local_enqued);
 339         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 340                          "Local freed", fw_stats->local_freed);
 341         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 342                          "HW queued", fw_stats->hw_queued);
 343         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 344                          "PPDUs reaped", fw_stats->hw_reaped);
 345         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 346                          "Num underruns", fw_stats->underrun);
 347         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 348                          "PPDUs cleaned", fw_stats->tx_abort);
 349         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 350                          "MPDUs requed", fw_stats->mpdus_requed);
 351         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 352                          "Excessive retries", fw_stats->tx_ko);
 353         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 354                          "HW rate", fw_stats->data_rc);
 355         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 356                          "Sched self tiggers", fw_stats->self_triggers);
 357         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 358                          "Dropped due to SW retries",
 359                          fw_stats->sw_retry_failure);
 360         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 361                          "Illegal rate phy errors",
 362                          fw_stats->illgl_rate_phy_err);
 363         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 364                          "Pdev continous xretry", fw_stats->pdev_cont_xretry);
 365         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 366                          "TX timeout", fw_stats->pdev_tx_timeout);
 367         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 368                          "PDEV resets", fw_stats->pdev_resets);
 369         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 370                          "PHY underrun", fw_stats->phy_underrun);
 371         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 372                          "MPDU is more than txop limit", fw_stats->txop_ovf);
 373
 374         len += scnprintf(buf + len, buf_len - len, "\n");
 375         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 376                          "ath10k PDEV RX stats");
 377         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 378                                  "=================");
 379
 380         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 381                          "Mid PPDU route change",
 382                          fw_stats->mid_ppdu_route_change);
 383         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 384                          "Tot. number of statuses", fw_stats->status_rcvd);
 385         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 386                          "Extra frags on rings 0", fw_stats->r0_frags);
 387         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 388                          "Extra frags on rings 1", fw_stats->r1_frags);
 389         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 390                          "Extra frags on rings 2", fw_stats->r2_frags);
 391         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 392                          "Extra frags on rings 3", fw_stats->r3_frags);
 393         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 394                          "MSDUs delivered to HTT", fw_stats->htt_msdus);
 395         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 396                          "MPDUs delivered to HTT", fw_stats->htt_mpdus);
 397         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 398                          "MSDUs delivered to stack", fw_stats->loc_msdus);
 399         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 400                          "MPDUs delivered to stack", fw_stats->loc_mpdus);
 401         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 402                          "Oversized AMSUs", fw_stats->oversize_amsdu);
 403         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 404                          "PHY errors", fw_stats->phy_errs);
 405         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 406                          "PHY errors drops", fw_stats->phy_err_drop);
 407         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 408                          "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
 409
 410         len += scnprintf(buf + len, buf_len - len, "\n");
 411         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 412                          "ath10k PEER stats");
 413         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 414                                  "=================");
 415
 416         for (i = 0; i < fw_stats->peers; i++) {
 417                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 418                                  "Peer MAC address",
 419                                  fw_stats->peer_stat[i].peer_macaddr);
 420                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 421                                  "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
 422                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 423                                  "Peer TX rate",
 424                                  fw_stats->peer_stat[i].peer_tx_rate);
 425                 len += scnprintf(buf + len, buf_len - len, "\n");
 426         }
 427
 428         if (len > buf_len)
 429                 len = buf_len;
 430
 431         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 432
 433         mutex_unlock(&ar->conf_mutex);
 434
 435         kfree(buf);
 436         return ret_cnt;
 437 }
 438
 439 static const struct file_operations fops_fw_stats = {
 440         .read = ath10k_read_fw_stats,
 441         .open = simple_open,
 442         .owner = THIS_MODULE,
 443         .llseek = default_llseek,
 444 };
 445
 446 int ath10k_debug_create(struct ath10k *ar)
 447 {
 448         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
 449                                                    ar->hw->wiphy->debugfsdir);
 450
 451         if (!ar->debug.debugfs_phy)
 452                 return -ENOMEM;
 453
 454         init_completion(&ar->debug.event_stats_compl);
 455
 456         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
 457                             &fops_fw_stats);
 458
 459         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
 460                             &fops_wmi_services);
 461
 462         return 0;
 463 }
 464 #endif /* CONFIG_ATH10K_DEBUGFS */
 465
 466 #ifdef CONFIG_ATH10K_DEBUG
 467 void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
 468 {
 469         struct va_format vaf;
 470         va_list args;
 471
 472         va_start(args, fmt);
 473
 474         vaf.fmt = fmt;
 475         vaf.va = &args;
 476
 477         if (ath10k_debug_mask & mask)
 478                 ath10k_printk(KERN_DEBUG, "%pV", &vaf);
 479
 480         trace_ath10k_log_dbg(mask, &vaf);
 481
 482         va_end(args);
 483 }
 484 EXPORT_SYMBOL(ath10k_dbg);
 485
 486 void ath10k_dbg_dump(enum ath10k_debug_mask mask,
 487                      const char *msg, const char *prefix,
 488                      const void *buf, size_t len)
 489 {
 490         if (ath10k_debug_mask & mask) {
 491                 if (msg)
 492                         ath10k_dbg(mask, "%s\n", msg);
 493
 494                 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
 495         }
 496
 497         /* tracing code doesn't like null strings :/ */
 498         trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
 499                                   buf, len);
 500 }
 501 EXPORT_SYMBOL(ath10k_dbg_dump);
 502
 503 #endif /* CONFIG_ATH10K_DEBUG */