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 /* ms */
  25 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  26
  27 static int ath10k_printk(const char *level, const char *fmt, ...)
  28 {
  29         struct va_format vaf;
  30         va_list args;
  31         int rtn;
  32
  33         va_start(args, fmt);
  34
  35         vaf.fmt = fmt;
  36         vaf.va = &args;
  37
  38         rtn = printk("%sath10k: %pV", level, &vaf);
  39
  40         va_end(args);
  41
  42         return rtn;
  43 }
  44
  45 int ath10k_info(const char *fmt, ...)
  46 {
  47         struct va_format vaf = {
  48                 .fmt = fmt,
  49         };
  50         va_list args;
  51         int ret;
  52
  53         va_start(args, fmt);
  54         vaf.va = &args;
  55         ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
  56         trace_ath10k_log_info(&vaf);
  57         va_end(args);
  58
  59         return ret;
  60 }
  61 EXPORT_SYMBOL(ath10k_info);
  62
  63 int ath10k_err(const char *fmt, ...)
  64 {
  65         struct va_format vaf = {
  66                 .fmt = fmt,
  67         };
  68         va_list args;
  69         int ret;
  70
  71         va_start(args, fmt);
  72         vaf.va = &args;
  73         ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
  74         trace_ath10k_log_err(&vaf);
  75         va_end(args);
  76
  77         return ret;
  78 }
  79 EXPORT_SYMBOL(ath10k_err);
  80
  81 int ath10k_warn(const char *fmt, ...)
  82 {
  83         struct va_format vaf = {
  84                 .fmt = fmt,
  85         };
  86         va_list args;
  87         int ret = 0;
  88
  89         va_start(args, fmt);
  90         vaf.va = &args;
  91
  92         if (net_ratelimit())
  93                 ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
  94
  95         trace_ath10k_log_warn(&vaf);
  96
  97         va_end(args);
  98
  99         return ret;
 100 }
 101 EXPORT_SYMBOL(ath10k_warn);
 102
 103 #ifdef CONFIG_ATH10K_DEBUGFS
 104
 105 void ath10k_debug_read_service_map(struct ath10k *ar,
 106                                    void *service_map,
 107                                    size_t map_size)
 108 {
 109         memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
 110 }
 111
 112 static ssize_t ath10k_read_wmi_services(struct file *file,
 113                                         char __user *user_buf,
 114                                         size_t count, loff_t *ppos)
 115 {
 116         struct ath10k *ar = file->private_data;
 117         char *buf;
 118         unsigned int len = 0, buf_len = 4096;
 119         const char *name;
 120         ssize_t ret_cnt;
 121         bool enabled;
 122         int i;
 123
 124         buf = kzalloc(buf_len, GFP_KERNEL);
 125         if (!buf)
 126                 return -ENOMEM;
 127
 128         mutex_lock(&ar->conf_mutex);
 129
 130         if (len > buf_len)
 131                 len = buf_len;
 132
 133         for (i = 0; i < WMI_MAX_SERVICE; i++) {
 134                 enabled = test_bit(i, ar->debug.wmi_service_bitmap);
 135                 name = wmi_service_name(i);
 136
 137                 if (!name) {
 138                         if (enabled)
 139                                 len += scnprintf(buf + len, buf_len - len,
 140                                                  "%-40s %s (bit %d)\n",
 141                                                  "unknown", "enabled", i);
 142
 143                         continue;
 144                 }
 145
 146                 len += scnprintf(buf + len, buf_len - len,
 147                                  "%-40s %s\n",
 148                                  name, enabled ? "enabled" : "-");
 149         }
 150
 151         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 152
 153         mutex_unlock(&ar->conf_mutex);
 154
 155         kfree(buf);
 156         return ret_cnt;
 157 }
 158
 159 static const struct file_operations fops_wmi_services = {
 160         .read = ath10k_read_wmi_services,
 161         .open = simple_open,
 162         .owner = THIS_MODULE,
 163         .llseek = default_llseek,
 164 };
 165
 166 void ath10k_debug_read_target_stats(struct ath10k *ar,
 167                                     struct wmi_stats_event *ev)
 168 {
 169         u8 *tmp = ev->data;
 170         struct ath10k_target_stats *stats;
 171         int num_pdev_stats, num_vdev_stats, num_peer_stats;
 172         struct wmi_pdev_stats_10x *ps;
 173         int i;
 174
 175         spin_lock_bh(&ar->data_lock);
 176
 177         stats = &ar->debug.target_stats;
 178
 179         num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
 180         num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
 181         num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
 182
 183         if (num_pdev_stats) {
 184                 ps = (struct wmi_pdev_stats_10x *)tmp;
 185
 186                 stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
 187                 stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
 188                 stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
 189                 stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
 190                 stats->cycle_count = __le32_to_cpu(ps->cycle_count);
 191                 stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
 192                 stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
 193
 194                 stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
 195                 stats->comp_delivered =
 196                         __le32_to_cpu(ps->wal.tx.comp_delivered);
 197                 stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
 198                 stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
 199                 stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
 200                 stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
 201                 stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
 202                 stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
 203                 stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
 204                 stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
 205                 stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
 206                 stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
 207                 stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
 208                 stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
 209                 stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
 210                 stats->sw_retry_failure =
 211                         __le32_to_cpu(ps->wal.tx.sw_retry_failure);
 212                 stats->illgl_rate_phy_err =
 213                         __le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
 214                 stats->pdev_cont_xretry =
 215                         __le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
 216                 stats->pdev_tx_timeout =
 217                         __le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
 218                 stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
 219                 stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
 220                 stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
 221
 222                 stats->mid_ppdu_route_change =
 223                         __le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
 224                 stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
 225                 stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
 226                 stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
 227                 stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
 228                 stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
 229                 stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
 230                 stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
 231                 stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
 232                 stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
 233                 stats->oversize_amsdu =
 234                         __le32_to_cpu(ps->wal.rx.oversize_amsdu);
 235                 stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
 236                 stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
 237                 stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
 238
 239                 if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 240                              ar->fw_features)) {
 241                         stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
 242                         stats->rts_bad = __le32_to_cpu(ps->rts_bad);
 243                         stats->rts_good = __le32_to_cpu(ps->rts_good);
 244                         stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
 245                         stats->no_beacons = __le32_to_cpu(ps->no_beacons);
 246                         stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
 247                         tmp += sizeof(struct wmi_pdev_stats_10x);
 248                 } else {
 249                         tmp += sizeof(struct wmi_pdev_stats_old);
 250                 }
 251         }
 252
 253         /* 0 or max vdevs */
 254         /* Currently firmware does not support VDEV stats */
 255         if (num_vdev_stats) {
 256                 struct wmi_vdev_stats *vdev_stats;
 257
 258                 for (i = 0; i < num_vdev_stats; i++) {
 259                         vdev_stats = (struct wmi_vdev_stats *)tmp;
 260                         tmp += sizeof(struct wmi_vdev_stats);
 261                 }
 262         }
 263
 264         if (num_peer_stats) {
 265                 struct wmi_peer_stats_10x *peer_stats;
 266                 struct ath10k_peer_stat *s;
 267
 268                 stats->peers = num_peer_stats;
 269
 270                 for (i = 0; i < num_peer_stats; i++) {
 271                         peer_stats = (struct wmi_peer_stats_10x *)tmp;
 272                         s = &stats->peer_stat[i];
 273
 274                         memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
 275                                ETH_ALEN);
 276                         s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 277                         s->peer_tx_rate =
 278                                 __le32_to_cpu(peer_stats->peer_tx_rate);
 279                         if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
 280                                      ar->fw_features)) {
 281                                 s->peer_rx_rate =
 282                                         __le32_to_cpu(peer_stats->peer_rx_rate);
 283                                 tmp += sizeof(struct wmi_peer_stats_10x);
 284
 285                         } else {
 286                                 tmp += sizeof(struct wmi_peer_stats_old);
 287                         }
 288                 }
 289         }
 290
 291         spin_unlock_bh(&ar->data_lock);
 292         complete(&ar->debug.event_stats_compl);
 293 }
 294
 295 static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 296                                     size_t count, loff_t *ppos)
 297 {
 298         struct ath10k *ar = file->private_data;
 299         struct ath10k_target_stats *fw_stats;
 300         char *buf = NULL;
 301         unsigned int len = 0, buf_len = 8000;
 302         ssize_t ret_cnt = 0;
 303         long left;
 304         int i;
 305         int ret;
 306
 307         fw_stats = &ar->debug.target_stats;
 308
 309         mutex_lock(&ar->conf_mutex);
 310
 311         if (ar->state != ATH10K_STATE_ON)
 312                 goto exit;
 313
 314         buf = kzalloc(buf_len, GFP_KERNEL);
 315         if (!buf)
 316                 goto exit;
 317
 318         ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
 319         if (ret) {
 320                 ath10k_warn("could not request stats (%d)\n", ret);
 321                 goto exit;
 322         }
 323
 324         left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
 325         if (left <= 0)
 326                 goto exit;
 327
 328         spin_lock_bh(&ar->data_lock);
 329         len += scnprintf(buf + len, buf_len - len, "\n");
 330         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 331                          "ath10k PDEV stats");
 332         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 333                                  "=================");
 334
 335         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 336                          "Channel noise floor", fw_stats->ch_noise_floor);
 337         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 338                          "Channel TX power", fw_stats->chan_tx_power);
 339         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 340                          "TX frame count", fw_stats->tx_frame_count);
 341         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 342                          "RX frame count", fw_stats->rx_frame_count);
 343         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 344                          "RX clear count", fw_stats->rx_clear_count);
 345         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 346                          "Cycle count", fw_stats->cycle_count);
 347         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 348                          "PHY error count", fw_stats->phy_err_count);
 349         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 350                          "RTS bad count", fw_stats->rts_bad);
 351         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 352                          "RTS good count", fw_stats->rts_good);
 353         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 354                          "FCS bad count", fw_stats->fcs_bad);
 355         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 356                          "No beacon count", fw_stats->no_beacons);
 357         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 358                          "MIB int count", fw_stats->mib_int_count);
 359
 360         len += scnprintf(buf + len, buf_len - len, "\n");
 361         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 362                          "ath10k PDEV TX stats");
 363         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 364                                  "=================");
 365
 366         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 367                          "HTT cookies queued", fw_stats->comp_queued);
 368         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 369                          "HTT cookies disp.", fw_stats->comp_delivered);
 370         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 371                          "MSDU queued", fw_stats->msdu_enqued);
 372         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 373                          "MPDU queued", fw_stats->mpdu_enqued);
 374         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 375                          "MSDUs dropped", fw_stats->wmm_drop);
 376         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 377                          "Local enqued", fw_stats->local_enqued);
 378         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 379                          "Local freed", fw_stats->local_freed);
 380         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 381                          "HW queued", fw_stats->hw_queued);
 382         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 383                          "PPDUs reaped", fw_stats->hw_reaped);
 384         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 385                          "Num underruns", fw_stats->underrun);
 386         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 387                          "PPDUs cleaned", fw_stats->tx_abort);
 388         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 389                          "MPDUs requed", fw_stats->mpdus_requed);
 390         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 391                          "Excessive retries", fw_stats->tx_ko);
 392         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 393                          "HW rate", fw_stats->data_rc);
 394         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 395                          "Sched self tiggers", fw_stats->self_triggers);
 396         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 397                          "Dropped due to SW retries",
 398                          fw_stats->sw_retry_failure);
 399         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 400                          "Illegal rate phy errors",
 401                          fw_stats->illgl_rate_phy_err);
 402         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 403                          "Pdev continous xretry", fw_stats->pdev_cont_xretry);
 404         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 405                          "TX timeout", fw_stats->pdev_tx_timeout);
 406         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 407                          "PDEV resets", fw_stats->pdev_resets);
 408         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 409                          "PHY underrun", fw_stats->phy_underrun);
 410         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 411                          "MPDU is more than txop limit", fw_stats->txop_ovf);
 412
 413         len += scnprintf(buf + len, buf_len - len, "\n");
 414         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 415                          "ath10k PDEV RX stats");
 416         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 417                                  "=================");
 418
 419         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 420                          "Mid PPDU route change",
 421                          fw_stats->mid_ppdu_route_change);
 422         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 423                          "Tot. number of statuses", fw_stats->status_rcvd);
 424         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 425                          "Extra frags on rings 0", fw_stats->r0_frags);
 426         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 427                          "Extra frags on rings 1", fw_stats->r1_frags);
 428         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 429                          "Extra frags on rings 2", fw_stats->r2_frags);
 430         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 431                          "Extra frags on rings 3", fw_stats->r3_frags);
 432         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 433                          "MSDUs delivered to HTT", fw_stats->htt_msdus);
 434         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 435                          "MPDUs delivered to HTT", fw_stats->htt_mpdus);
 436         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 437                          "MSDUs delivered to stack", fw_stats->loc_msdus);
 438         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 439                          "MPDUs delivered to stack", fw_stats->loc_mpdus);
 440         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 441                          "Oversized AMSUs", fw_stats->oversize_amsdu);
 442         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 443                          "PHY errors", fw_stats->phy_errs);
 444         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 445                          "PHY errors drops", fw_stats->phy_err_drop);
 446         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 447                          "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
 448
 449         len += scnprintf(buf + len, buf_len - len, "\n");
 450         len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
 451                          "ath10k PEER stats", fw_stats->peers);
 452         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 453                                  "=================");
 454
 455         for (i = 0; i < fw_stats->peers; i++) {
 456                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 457                                  "Peer MAC address",
 458                                  fw_stats->peer_stat[i].peer_macaddr);
 459                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 460                                  "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
 461                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 462                                  "Peer TX rate",
 463                                  fw_stats->peer_stat[i].peer_tx_rate);
 464                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 465                                  "Peer RX rate",
 466                                  fw_stats->peer_stat[i].peer_rx_rate);
 467                 len += scnprintf(buf + len, buf_len - len, "\n");
 468         }
 469         spin_unlock_bh(&ar->data_lock);
 470
 471         if (len > buf_len)
 472                 len = buf_len;
 473
 474         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 475
 476 exit:
 477         mutex_unlock(&ar->conf_mutex);
 478         kfree(buf);
 479         return ret_cnt;
 480 }
 481
 482 static const struct file_operations fops_fw_stats = {
 483         .read = ath10k_read_fw_stats,
 484         .open = simple_open,
 485         .owner = THIS_MODULE,
 486         .llseek = default_llseek,
 487 };
 488
 489 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 490                                              char __user *user_buf,
 491                                              size_t count, loff_t *ppos)
 492 {
 493         const char buf[] = "To simulate firmware crash write one of the"
 494                            " keywords to this file:\n `soft` - this will send"
 495                            " WMI_FORCE_FW_HANG_ASSERT to firmware if FW"
 496                            " supports that command.\n `hard` - this will send"
 497                            " to firmware command with illegal parameters"
 498                            " causing firmware crash.\n";
 499
 500         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 501 }
 502
 503 /* Simulate firmware crash:
 504  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 505  * recoverable by warm firmware reset.
 506  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 507  * vdev id. This is hard firmware crash because it is recoverable only by cold
 508  * firmware reset.
 509  */
 510 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 511                                               const char __user *user_buf,
 512                                               size_t count, loff_t *ppos)
 513 {
 514         struct ath10k *ar = file->private_data;
 515         char buf[32];
 516         int ret;
 517
 518         mutex_lock(&ar->conf_mutex);
 519
 520         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 521
 522         /* make sure that buf is null terminated */
 523         buf[sizeof(buf) - 1] = 0;
 524
 525         if (ar->state != ATH10K_STATE_ON &&
 526             ar->state != ATH10K_STATE_RESTARTED) {
 527                 ret = -ENETDOWN;
 528                 goto exit;
 529         }
 530
 531         /* drop the possible '\n' from the end */
 532         if (buf[count - 1] == '\n') {
 533                 buf[count - 1] = 0;
 534                 count--;
 535         }
 536
 537         if (!strcmp(buf, "soft")) {
 538                 ath10k_info("simulating soft firmware crash\n");
 539                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 540         } else if (!strcmp(buf, "hard")) {
 541                 ath10k_info("simulating hard firmware crash\n");
 542                 /* 0x7fff is vdev id, and it is always out of range for all
 543                  * firmware variants in order to force a firmware crash.
 544                  */
 545                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 546                                         ar->wmi.vdev_param->rts_threshold, 0);
 547         } else {
 548                 ret = -EINVAL;
 549                 goto exit;
 550         }
 551
 552         if (ret) {
 553                 ath10k_warn("failed to simulate firmware crash: %d\n", ret);
 554                 goto exit;
 555         }
 556
 557         ret = count;
 558
 559 exit:
 560         mutex_unlock(&ar->conf_mutex);
 561         return ret;
 562 }
 563
 564 static const struct file_operations fops_simulate_fw_crash = {
 565         .read = ath10k_read_simulate_fw_crash,
 566         .write = ath10k_write_simulate_fw_crash,
 567         .open = simple_open,
 568         .owner = THIS_MODULE,
 569         .llseek = default_llseek,
 570 };
 571
 572 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 573                                    size_t count, loff_t *ppos)
 574 {
 575         struct ath10k *ar = file->private_data;
 576         unsigned int len;
 577         char buf[50];
 578
 579         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 580
 581         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 582 }
 583
 584 static const struct file_operations fops_chip_id = {
 585         .read = ath10k_read_chip_id,
 586         .open = simple_open,
 587         .owner = THIS_MODULE,
 588         .llseek = default_llseek,
 589 };
 590
 591 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 592 {
 593         u64 cookie;
 594         int ret;
 595
 596         lockdep_assert_held(&ar->conf_mutex);
 597
 598         if (ar->debug.htt_stats_mask == 0)
 599                 /* htt stats are disabled */
 600                 return 0;
 601
 602         if (ar->state != ATH10K_STATE_ON)
 603                 return 0;
 604
 605         cookie = get_jiffies_64();
 606
 607         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 608                                        cookie);
 609         if (ret) {
 610                 ath10k_warn("failed to send htt stats request: %d\n", ret);
 611                 return ret;
 612         }
 613
 614         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 615                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 616
 617         return 0;
 618 }
 619
 620 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 621 {
 622         struct ath10k *ar = container_of(work, struct ath10k,
 623                                          debug.htt_stats_dwork.work);
 624
 625         mutex_lock(&ar->conf_mutex);
 626
 627         ath10k_debug_htt_stats_req(ar);
 628
 629         mutex_unlock(&ar->conf_mutex);
 630 }
 631
 632 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 633                                             char __user *user_buf,
 634                                             size_t count, loff_t *ppos)
 635 {
 636         struct ath10k *ar = file->private_data;
 637         char buf[32];
 638         unsigned int len;
 639
 640         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 641
 642         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 643 }
 644
 645 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 646                                              const char __user *user_buf,
 647                                              size_t count, loff_t *ppos)
 648 {
 649         struct ath10k *ar = file->private_data;
 650         unsigned long mask;
 651         int ret;
 652
 653         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 654         if (ret)
 655                 return ret;
 656
 657         /* max 8 bit masks (for now) */
 658         if (mask > 0xff)
 659                 return -E2BIG;
 660
 661         mutex_lock(&ar->conf_mutex);
 662
 663         ar->debug.htt_stats_mask = mask;
 664
 665         ret = ath10k_debug_htt_stats_req(ar);
 666         if (ret)
 667                 goto out;
 668
 669         ret = count;
 670
 671 out:
 672         mutex_unlock(&ar->conf_mutex);
 673
 674         return ret;
 675 }
 676
 677 static const struct file_operations fops_htt_stats_mask = {
 678         .read = ath10k_read_htt_stats_mask,
 679         .write = ath10k_write_htt_stats_mask,
 680         .open = simple_open,
 681         .owner = THIS_MODULE,
 682         .llseek = default_llseek,
 683 };
 684
 685 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
 686                                                char __user *user_buf,
 687                                                size_t count, loff_t *ppos)
 688 {
 689         struct ath10k *ar = file->private_data;
 690         char buf[64];
 691         u8 amsdu = 3, ampdu = 64;
 692         unsigned int len;
 693
 694         mutex_lock(&ar->conf_mutex);
 695
 696         if (ar->debug.htt_max_amsdu)
 697                 amsdu = ar->debug.htt_max_amsdu;
 698
 699         if (ar->debug.htt_max_ampdu)
 700                 ampdu = ar->debug.htt_max_ampdu;
 701
 702         mutex_unlock(&ar->conf_mutex);
 703
 704         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
 705
 706         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 707 }
 708
 709 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
 710                                                 const char __user *user_buf,
 711                                                 size_t count, loff_t *ppos)
 712 {
 713         struct ath10k *ar = file->private_data;
 714         int res;
 715         char buf[64];
 716         unsigned int amsdu, ampdu;
 717
 718         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 719
 720         /* make sure that buf is null terminated */
 721         buf[sizeof(buf) - 1] = 0;
 722
 723         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
 724
 725         if (res != 2)
 726                 return -EINVAL;
 727
 728         mutex_lock(&ar->conf_mutex);
 729
 730         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
 731         if (res)
 732                 goto out;
 733
 734         res = count;
 735         ar->debug.htt_max_amsdu = amsdu;
 736         ar->debug.htt_max_ampdu = ampdu;
 737
 738 out:
 739         mutex_unlock(&ar->conf_mutex);
 740         return res;
 741 }
 742
 743 static const struct file_operations fops_htt_max_amsdu_ampdu = {
 744         .read = ath10k_read_htt_max_amsdu_ampdu,
 745         .write = ath10k_write_htt_max_amsdu_ampdu,
 746         .open = simple_open,
 747         .owner = THIS_MODULE,
 748         .llseek = default_llseek,
 749 };
 750
 751 static ssize_t ath10k_read_fw_dbglog(struct file *file,
 752                                             char __user *user_buf,
 753                                             size_t count, loff_t *ppos)
 754 {
 755         struct ath10k *ar = file->private_data;
 756         unsigned int len;
 757         char buf[32];
 758
 759         len = scnprintf(buf, sizeof(buf), "0x%08x\n",
 760                         ar->debug.fw_dbglog_mask);
 761
 762         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 763 }
 764
 765 static ssize_t ath10k_write_fw_dbglog(struct file *file,
 766                                       const char __user *user_buf,
 767                                       size_t count, loff_t *ppos)
 768 {
 769         struct ath10k *ar = file->private_data;
 770         unsigned long mask;
 771         int ret;
 772
 773         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 774         if (ret)
 775                 return ret;
 776
 777         mutex_lock(&ar->conf_mutex);
 778
 779         ar->debug.fw_dbglog_mask = mask;
 780
 781         if (ar->state == ATH10K_STATE_ON) {
 782                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
 783                 if (ret) {
 784                         ath10k_warn("dbglog cfg failed from debugfs: %d\n",
 785                                     ret);
 786                         goto exit;
 787                 }
 788         }
 789
 790         ret = count;
 791
 792 exit:
 793         mutex_unlock(&ar->conf_mutex);
 794
 795         return ret;
 796 }
 797
 798 static const struct file_operations fops_fw_dbglog = {
 799         .read = ath10k_read_fw_dbglog,
 800         .write = ath10k_write_fw_dbglog,
 801         .open = simple_open,
 802         .owner = THIS_MODULE,
 803         .llseek = default_llseek,
 804 };
 805
 806 int ath10k_debug_start(struct ath10k *ar)
 807 {
 808         int ret;
 809
 810         lockdep_assert_held(&ar->conf_mutex);
 811
 812         ret = ath10k_debug_htt_stats_req(ar);
 813         if (ret)
 814                 /* continue normally anyway, this isn't serious */
 815                 ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
 816
 817         if (ar->debug.fw_dbglog_mask) {
 818                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
 819                 if (ret)
 820                         /* not serious */
 821                         ath10k_warn("failed to enable dbglog during start: %d",
 822                                     ret);
 823         }
 824
 825         return 0;
 826 }
 827
 828 void ath10k_debug_stop(struct ath10k *ar)
 829 {
 830         lockdep_assert_held(&ar->conf_mutex);
 831
 832         /* Must not use _sync to avoid deadlock, we do that in
 833          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
 834          * warning from del_timer(). */
 835         if (ar->debug.htt_stats_mask != 0)
 836                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
 837
 838         ar->debug.htt_max_amsdu = 0;
 839         ar->debug.htt_max_ampdu = 0;
 840 }
 841
 842 static ssize_t ath10k_write_simulate_radar(struct file *file,
 843                                            const char __user *user_buf,
 844                                            size_t count, loff_t *ppos)
 845 {
 846         struct ath10k *ar = file->private_data;
 847
 848         ieee80211_radar_detected(ar->hw);
 849
 850         return count;
 851 }
 852
 853 static const struct file_operations fops_simulate_radar = {
 854         .write = ath10k_write_simulate_radar,
 855         .open = simple_open,
 856         .owner = THIS_MODULE,
 857         .llseek = default_llseek,
 858 };
 859
 860 #define ATH10K_DFS_STAT(s, p) (\
 861         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
 862                          ar->debug.dfs_stats.p))
 863
 864 #define ATH10K_DFS_POOL_STAT(s, p) (\
 865         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
 866                          ar->debug.dfs_pool_stats.p))
 867
 868 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
 869                                      size_t count, loff_t *ppos)
 870 {
 871         int retval = 0, len = 0;
 872         const int size = 8000;
 873         struct ath10k *ar = file->private_data;
 874         char *buf;
 875
 876         buf = kzalloc(size, GFP_KERNEL);
 877         if (buf == NULL)
 878                 return -ENOMEM;
 879
 880         if (!ar->dfs_detector) {
 881                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
 882                 goto exit;
 883         }
 884
 885         ar->debug.dfs_pool_stats =
 886                         ar->dfs_detector->get_stats(ar->dfs_detector);
 887
 888         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
 889
 890         ATH10K_DFS_STAT("reported phy errors", phy_errors);
 891         ATH10K_DFS_STAT("pulse events reported", pulses_total);
 892         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
 893         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
 894         ATH10K_DFS_STAT("Radars detected", radar_detected);
 895
 896         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
 897         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
 898         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
 899         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
 900         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
 901         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
 902         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
 903         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
 904
 905 exit:
 906         if (len > size)
 907                 len = size;
 908
 909         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 910         kfree(buf);
 911
 912         return retval;
 913 }
 914
 915 static const struct file_operations fops_dfs_stats = {
 916         .read = ath10k_read_dfs_stats,
 917         .open = simple_open,
 918         .owner = THIS_MODULE,
 919         .llseek = default_llseek,
 920 };
 921
 922 int ath10k_debug_create(struct ath10k *ar)
 923 {
 924         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
 925                                                    ar->hw->wiphy->debugfsdir);
 926
 927         if (!ar->debug.debugfs_phy)
 928                 return -ENOMEM;
 929
 930         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
 931                           ath10k_debug_htt_stats_dwork);
 932
 933         init_completion(&ar->debug.event_stats_compl);
 934
 935         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
 936                             &fops_fw_stats);
 937
 938         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
 939                             &fops_wmi_services);
 940
 941         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
 942                             ar, &fops_simulate_fw_crash);
 943
 944         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
 945                             ar, &fops_chip_id);
 946
 947         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
 948                             ar, &fops_htt_stats_mask);
 949
 950         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
 951                             ar->debug.debugfs_phy, ar,
 952                             &fops_htt_max_amsdu_ampdu);
 953
 954         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
 955                             ar, &fops_fw_dbglog);
 956
 957         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
 958                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
 959                                     ar->debug.debugfs_phy, ar,
 960                                     &fops_simulate_radar);
 961
 962                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
 963                                     ar->debug.debugfs_phy,
 964                                     &ar->dfs_block_radar_events);
 965
 966                 debugfs_create_file("dfs_stats", S_IRUSR,
 967                                     ar->debug.debugfs_phy, ar,
 968                                     &fops_dfs_stats);
 969         }
 970
 971         return 0;
 972 }
 973
 974 void ath10k_debug_destroy(struct ath10k *ar)
 975 {
 976         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
 977 }
 978
 979 #endif /* CONFIG_ATH10K_DEBUGFS */
 980
 981 #ifdef CONFIG_ATH10K_DEBUG
 982 void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
 983 {
 984         struct va_format vaf;
 985         va_list args;
 986
 987         va_start(args, fmt);
 988
 989         vaf.fmt = fmt;
 990         vaf.va = &args;
 991
 992         if (ath10k_debug_mask & mask)
 993                 ath10k_printk(KERN_DEBUG, "%pV", &vaf);
 994
 995         trace_ath10k_log_dbg(mask, &vaf);
 996
 997         va_end(args);
 998 }
 999 EXPORT_SYMBOL(ath10k_dbg);
1000
1001 void ath10k_dbg_dump(enum ath10k_debug_mask mask,
1002                      const char *msg, const char *prefix,
1003                      const void *buf, size_t len)
1004 {
1005         if (ath10k_debug_mask & mask) {
1006                 if (msg)
1007                         ath10k_dbg(mask, "%s\n", msg);
1008
1009                 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
1010         }
1011
1012         /* tracing code doesn't like null strings :/ */
1013         trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
1014                                   buf, len);
1015 }
1016 EXPORT_SYMBOL(ath10k_dbg_dump);
1017
1018 #endif /* CONFIG_ATH10K_DEBUG */