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/vmalloc.h> 21 #include <linux/utsname.h> 22 23 #include "core.h" 24 #include "debug.h" 25 #include "hif.h" 26 #include "wmi-ops.h" 27 28 /* ms */ 29 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000 30 31 #define ATH10K_FW_CRASH_DUMP_VERSION 1 32 33 /** 34 * enum ath10k_fw_crash_dump_type - types of data in the dump file 35 * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format 36 */ 37 enum ath10k_fw_crash_dump_type { 38 ATH10K_FW_CRASH_DUMP_REGISTERS = 0, 39 40 ATH10K_FW_CRASH_DUMP_MAX, 41 }; 42 43 struct ath10k_tlv_dump_data { 44 /* see ath10k_fw_crash_dump_type above */ 45 __le32 type; 46 47 /* in bytes */ 48 __le32 tlv_len; 49 50 /* pad to 32-bit boundaries as needed */ 51 u8 tlv_data[]; 52 } __packed; 53 54 struct ath10k_dump_file_data { 55 /* dump file information */ 56 57 /* "ATH10K-FW-DUMP" */ 58 char df_magic[16]; 59 60 __le32 len; 61 62 /* file dump version */ 63 __le32 version; 64 65 /* some info we can get from ath10k struct that might help */ 66 67 u8 uuid[16]; 68 69 __le32 chip_id; 70 71 /* 0 for now, in place for later hardware */ 72 __le32 bus_type; 73 74 __le32 target_version; 75 __le32 fw_version_major; 76 __le32 fw_version_minor; 77 __le32 fw_version_release; 78 __le32 fw_version_build; 79 __le32 phy_capability; 80 __le32 hw_min_tx_power; 81 __le32 hw_max_tx_power; 82 __le32 ht_cap_info; 83 __le32 vht_cap_info; 84 __le32 num_rf_chains; 85 86 /* firmware version string */ 87 char fw_ver[ETHTOOL_FWVERS_LEN]; 88 89 /* Kernel related information */ 90 91 /* time-of-day stamp */ 92 __le64 tv_sec; 93 94 /* time-of-day stamp, nano-seconds */ 95 __le64 tv_nsec; 96 97 /* LINUX_VERSION_CODE */ 98 __le32 kernel_ver_code; 99 100 /* VERMAGIC_STRING */ 101 char kernel_ver[64]; 102 103 /* room for growth w/out changing binary format */ 104 u8 unused[128]; 105 106 /* struct ath10k_tlv_dump_data + more */ 107 u8 data[0]; 108 } __packed; 109 110 void ath10k_info(struct ath10k *ar, const char *fmt, ...) 111 { 112 struct va_format vaf = { 113 .fmt = fmt, 114 }; 115 va_list args; 116 117 va_start(args, fmt); 118 vaf.va = &args; 119 dev_info(ar->dev, "%pV", &vaf); 120 trace_ath10k_log_info(ar, &vaf); 121 va_end(args); 122 } 123 EXPORT_SYMBOL(ath10k_info); 124 125 void ath10k_print_driver_info(struct ath10k *ar) 126 { 127 ath10k_info(ar, "%s (0x%08x, 0x%08x%s%s%s) fw %s api %d htt %d.%d wmi %d cal %s max_sta %d\n", 128 ar->hw_params.name, 129 ar->target_version, 130 ar->chip_id, 131 (strlen(ar->spec_board_id) > 0 ? ", " : ""), 132 ar->spec_board_id, 133 (strlen(ar->spec_board_id) > 0 && !ar->spec_board_loaded 134 ? " fallback" : ""), 135 ar->hw->wiphy->fw_version, 136 ar->fw_api, 137 ar->htt.target_version_major, 138 ar->htt.target_version_minor, 139 ar->wmi.op_version, 140 ath10k_cal_mode_str(ar->cal_mode), 141 ar->max_num_stations); 142 ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n", 143 config_enabled(CONFIG_ATH10K_DEBUG), 144 config_enabled(CONFIG_ATH10K_DEBUGFS), 145 config_enabled(CONFIG_ATH10K_TRACING), 146 config_enabled(CONFIG_ATH10K_DFS_CERTIFIED), 147 config_enabled(CONFIG_NL80211_TESTMODE)); 148 } 149 EXPORT_SYMBOL(ath10k_print_driver_info); 150 151 void ath10k_err(struct ath10k *ar, const char *fmt, ...) 152 { 153 struct va_format vaf = { 154 .fmt = fmt, 155 }; 156 va_list args; 157 158 va_start(args, fmt); 159 vaf.va = &args; 160 dev_err(ar->dev, "%pV", &vaf); 161 trace_ath10k_log_err(ar, &vaf); 162 va_end(args); 163 } 164 EXPORT_SYMBOL(ath10k_err); 165 166 void ath10k_warn(struct ath10k *ar, const char *fmt, ...) 167 { 168 struct va_format vaf = { 169 .fmt = fmt, 170 }; 171 va_list args; 172 173 va_start(args, fmt); 174 vaf.va = &args; 175 dev_warn_ratelimited(ar->dev, "%pV", &vaf); 176 trace_ath10k_log_warn(ar, &vaf); 177 178 va_end(args); 179 } 180 EXPORT_SYMBOL(ath10k_warn); 181 182 #ifdef CONFIG_ATH10K_DEBUGFS 183 184 static ssize_t ath10k_read_wmi_services(struct file *file, 185 char __user *user_buf, 186 size_t count, loff_t *ppos) 187 { 188 struct ath10k *ar = file->private_data; 189 char *buf; 190 unsigned int len = 0, buf_len = 4096; 191 const char *name; 192 ssize_t ret_cnt; 193 bool enabled; 194 int i; 195 196 buf = kzalloc(buf_len, GFP_KERNEL); 197 if (!buf) 198 return -ENOMEM; 199 200 mutex_lock(&ar->conf_mutex); 201 202 if (len > buf_len) 203 len = buf_len; 204 205 spin_lock_bh(&ar->data_lock); 206 for (i = 0; i < WMI_SERVICE_MAX; i++) { 207 enabled = test_bit(i, ar->wmi.svc_map); 208 name = wmi_service_name(i); 209 210 if (!name) { 211 if (enabled) 212 len += scnprintf(buf + len, buf_len - len, 213 "%-40s %s (bit %d)\n", 214 "unknown", "enabled", i); 215 216 continue; 217 } 218 219 len += scnprintf(buf + len, buf_len - len, 220 "%-40s %s\n", 221 name, enabled ? "enabled" : "-"); 222 } 223 spin_unlock_bh(&ar->data_lock); 224 225 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 226 227 mutex_unlock(&ar->conf_mutex); 228 229 kfree(buf); 230 return ret_cnt; 231 } 232 233 static const struct file_operations fops_wmi_services = { 234 .read = ath10k_read_wmi_services, 235 .open = simple_open, 236 .owner = THIS_MODULE, 237 .llseek = default_llseek, 238 }; 239 240 static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head) 241 { 242 struct ath10k_fw_stats_pdev *i, *tmp; 243 244 list_for_each_entry_safe(i, tmp, head, list) { 245 list_del(&i->list); 246 kfree(i); 247 } 248 } 249 250 static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head) 251 { 252 struct ath10k_fw_stats_vdev *i, *tmp; 253 254 list_for_each_entry_safe(i, tmp, head, list) { 255 list_del(&i->list); 256 kfree(i); 257 } 258 } 259 260 static void ath10k_debug_fw_stats_peers_free(struct list_head *head) 261 { 262 struct ath10k_fw_stats_peer *i, *tmp; 263 264 list_for_each_entry_safe(i, tmp, head, list) { 265 list_del(&i->list); 266 kfree(i); 267 } 268 } 269 270 static void ath10k_debug_fw_stats_reset(struct ath10k *ar) 271 { 272 spin_lock_bh(&ar->data_lock); 273 ar->debug.fw_stats_done = false; 274 ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs); 275 ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); 276 ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers); 277 spin_unlock_bh(&ar->data_lock); 278 } 279 280 static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head) 281 { 282 struct ath10k_fw_stats_peer *i; 283 size_t num = 0; 284 285 list_for_each_entry(i, head, list) 286 ++num; 287 288 return num; 289 } 290 291 static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head) 292 { 293 struct ath10k_fw_stats_vdev *i; 294 size_t num = 0; 295 296 list_for_each_entry(i, head, list) 297 ++num; 298 299 return num; 300 } 301 302 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) 303 { 304 struct ath10k_fw_stats stats = {}; 305 bool is_start, is_started, is_end; 306 size_t num_peers; 307 size_t num_vdevs; 308 int ret; 309 310 INIT_LIST_HEAD(&stats.pdevs); 311 INIT_LIST_HEAD(&stats.vdevs); 312 INIT_LIST_HEAD(&stats.peers); 313 314 spin_lock_bh(&ar->data_lock); 315 ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats); 316 if (ret) { 317 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret); 318 goto unlock; 319 } 320 321 /* Stat data may exceed htc-wmi buffer limit. In such case firmware 322 * splits the stats data and delivers it in a ping-pong fashion of 323 * request cmd-update event. 324 * 325 * However there is no explicit end-of-data. Instead start-of-data is 326 * used as an implicit one. This works as follows: 327 * a) discard stat update events until one with pdev stats is 328 * delivered - this skips session started at end of (b) 329 * b) consume stat update events until another one with pdev stats is 330 * delivered which is treated as end-of-data and is itself discarded 331 */ 332 333 if (ar->debug.fw_stats_done) { 334 ath10k_warn(ar, "received unsolicited stats update event\n"); 335 goto free; 336 } 337 338 num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers); 339 num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs); 340 is_start = (list_empty(&ar->debug.fw_stats.pdevs) && 341 !list_empty(&stats.pdevs)); 342 is_end = (!list_empty(&ar->debug.fw_stats.pdevs) && 343 !list_empty(&stats.pdevs)); 344 345 if (is_start) 346 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs); 347 348 if (is_end) 349 ar->debug.fw_stats_done = true; 350 351 is_started = !list_empty(&ar->debug.fw_stats.pdevs); 352 353 if (is_started && !is_end) { 354 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) { 355 /* Although this is unlikely impose a sane limit to 356 * prevent firmware from DoS-ing the host. 357 */ 358 ath10k_warn(ar, "dropping fw peer stats\n"); 359 goto free; 360 } 361 362 if (num_vdevs >= BITS_PER_LONG) { 363 ath10k_warn(ar, "dropping fw vdev stats\n"); 364 goto free; 365 } 366 367 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers); 368 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs); 369 } 370 371 complete(&ar->debug.fw_stats_complete); 372 373 free: 374 /* In some cases lists have been spliced and cleared. Free up 375 * resources if that is not the case. 376 */ 377 ath10k_debug_fw_stats_pdevs_free(&stats.pdevs); 378 ath10k_debug_fw_stats_vdevs_free(&stats.vdevs); 379 ath10k_debug_fw_stats_peers_free(&stats.peers); 380 381 unlock: 382 spin_unlock_bh(&ar->data_lock); 383 } 384 385 static int ath10k_debug_fw_stats_request(struct ath10k *ar) 386 { 387 unsigned long timeout, time_left; 388 int ret; 389 390 lockdep_assert_held(&ar->conf_mutex); 391 392 timeout = jiffies + msecs_to_jiffies(1 * HZ); 393 394 ath10k_debug_fw_stats_reset(ar); 395 396 for (;;) { 397 if (time_after(jiffies, timeout)) 398 return -ETIMEDOUT; 399 400 reinit_completion(&ar->debug.fw_stats_complete); 401 402 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask); 403 if (ret) { 404 ath10k_warn(ar, "could not request stats (%d)\n", ret); 405 return ret; 406 } 407 408 time_left = 409 wait_for_completion_timeout(&ar->debug.fw_stats_complete, 410 1 * HZ); 411 if (!time_left) 412 return -ETIMEDOUT; 413 414 spin_lock_bh(&ar->data_lock); 415 if (ar->debug.fw_stats_done) { 416 spin_unlock_bh(&ar->data_lock); 417 break; 418 } 419 spin_unlock_bh(&ar->data_lock); 420 } 421 422 return 0; 423 } 424 425 /* FIXME: How to calculate the buffer size sanely? */ 426 #define ATH10K_FW_STATS_BUF_SIZE (1024*1024) 427 428 static void ath10k_fw_stats_fill(struct ath10k *ar, 429 struct ath10k_fw_stats *fw_stats, 430 char *buf) 431 { 432 unsigned int len = 0; 433 unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE; 434 const struct ath10k_fw_stats_pdev *pdev; 435 const struct ath10k_fw_stats_vdev *vdev; 436 const struct ath10k_fw_stats_peer *peer; 437 size_t num_peers; 438 size_t num_vdevs; 439 int i; 440 441 spin_lock_bh(&ar->data_lock); 442 443 pdev = list_first_entry_or_null(&fw_stats->pdevs, 444 struct ath10k_fw_stats_pdev, list); 445 if (!pdev) { 446 ath10k_warn(ar, "failed to get pdev stats\n"); 447 goto unlock; 448 } 449 450 num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers); 451 num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs); 452 453 len += scnprintf(buf + len, buf_len - len, "\n"); 454 len += scnprintf(buf + len, buf_len - len, "%30s\n", 455 "ath10k PDEV stats"); 456 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 457 "================="); 458 459 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 460 "Channel noise floor", pdev->ch_noise_floor); 461 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 462 "Channel TX power", pdev->chan_tx_power); 463 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 464 "TX frame count", pdev->tx_frame_count); 465 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 466 "RX frame count", pdev->rx_frame_count); 467 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 468 "RX clear count", pdev->rx_clear_count); 469 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 470 "Cycle count", pdev->cycle_count); 471 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 472 "PHY error count", pdev->phy_err_count); 473 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 474 "RTS bad count", pdev->rts_bad); 475 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 476 "RTS good count", pdev->rts_good); 477 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 478 "FCS bad count", pdev->fcs_bad); 479 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 480 "No beacon count", pdev->no_beacons); 481 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 482 "MIB int count", pdev->mib_int_count); 483 484 len += scnprintf(buf + len, buf_len - len, "\n"); 485 len += scnprintf(buf + len, buf_len - len, "%30s\n", 486 "ath10k PDEV TX stats"); 487 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 488 "================="); 489 490 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 491 "HTT cookies queued", pdev->comp_queued); 492 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 493 "HTT cookies disp.", pdev->comp_delivered); 494 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 495 "MSDU queued", pdev->msdu_enqued); 496 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 497 "MPDU queued", pdev->mpdu_enqued); 498 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 499 "MSDUs dropped", pdev->wmm_drop); 500 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 501 "Local enqued", pdev->local_enqued); 502 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 503 "Local freed", pdev->local_freed); 504 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 505 "HW queued", pdev->hw_queued); 506 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 507 "PPDUs reaped", pdev->hw_reaped); 508 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 509 "Num underruns", pdev->underrun); 510 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 511 "PPDUs cleaned", pdev->tx_abort); 512 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 513 "MPDUs requed", pdev->mpdus_requed); 514 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 515 "Excessive retries", pdev->tx_ko); 516 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 517 "HW rate", pdev->data_rc); 518 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 519 "Sched self tiggers", pdev->self_triggers); 520 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 521 "Dropped due to SW retries", 522 pdev->sw_retry_failure); 523 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 524 "Illegal rate phy errors", 525 pdev->illgl_rate_phy_err); 526 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 527 "Pdev continous xretry", pdev->pdev_cont_xretry); 528 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 529 "TX timeout", pdev->pdev_tx_timeout); 530 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 531 "PDEV resets", pdev->pdev_resets); 532 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 533 "PHY underrun", pdev->phy_underrun); 534 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 535 "MPDU is more than txop limit", pdev->txop_ovf); 536 537 len += scnprintf(buf + len, buf_len - len, "\n"); 538 len += scnprintf(buf + len, buf_len - len, "%30s\n", 539 "ath10k PDEV RX stats"); 540 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 541 "================="); 542 543 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 544 "Mid PPDU route change", 545 pdev->mid_ppdu_route_change); 546 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 547 "Tot. number of statuses", pdev->status_rcvd); 548 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 549 "Extra frags on rings 0", pdev->r0_frags); 550 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 551 "Extra frags on rings 1", pdev->r1_frags); 552 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 553 "Extra frags on rings 2", pdev->r2_frags); 554 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 555 "Extra frags on rings 3", pdev->r3_frags); 556 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 557 "MSDUs delivered to HTT", pdev->htt_msdus); 558 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 559 "MPDUs delivered to HTT", pdev->htt_mpdus); 560 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 561 "MSDUs delivered to stack", pdev->loc_msdus); 562 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 563 "MPDUs delivered to stack", pdev->loc_mpdus); 564 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 565 "Oversized AMSUs", pdev->oversize_amsdu); 566 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 567 "PHY errors", pdev->phy_errs); 568 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 569 "PHY errors drops", pdev->phy_err_drop); 570 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 571 "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs); 572 573 len += scnprintf(buf + len, buf_len - len, "\n"); 574 len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", 575 "ath10k VDEV stats", num_vdevs); 576 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 577 "================="); 578 579 list_for_each_entry(vdev, &fw_stats->vdevs, list) { 580 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 581 "vdev id", vdev->vdev_id); 582 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 583 "beacon snr", vdev->beacon_snr); 584 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 585 "data snr", vdev->data_snr); 586 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 587 "num rx frames", vdev->num_rx_frames); 588 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 589 "num rts fail", vdev->num_rts_fail); 590 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 591 "num rts success", vdev->num_rts_success); 592 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 593 "num rx err", vdev->num_rx_err); 594 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 595 "num rx discard", vdev->num_rx_discard); 596 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 597 "num tx not acked", vdev->num_tx_not_acked); 598 599 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++) 600 len += scnprintf(buf + len, buf_len - len, 601 "%25s [%02d] %u\n", 602 "num tx frames", i, 603 vdev->num_tx_frames[i]); 604 605 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++) 606 len += scnprintf(buf + len, buf_len - len, 607 "%25s [%02d] %u\n", 608 "num tx frames retries", i, 609 vdev->num_tx_frames_retries[i]); 610 611 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++) 612 len += scnprintf(buf + len, buf_len - len, 613 "%25s [%02d] %u\n", 614 "num tx frames failures", i, 615 vdev->num_tx_frames_failures[i]); 616 617 for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++) 618 len += scnprintf(buf + len, buf_len - len, 619 "%25s [%02d] 0x%08x\n", 620 "tx rate history", i, 621 vdev->tx_rate_history[i]); 622 623 for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++) 624 len += scnprintf(buf + len, buf_len - len, 625 "%25s [%02d] %u\n", 626 "beacon rssi history", i, 627 vdev->beacon_rssi_history[i]); 628 629 len += scnprintf(buf + len, buf_len - len, "\n"); 630 } 631 632 len += scnprintf(buf + len, buf_len - len, "\n"); 633 len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", 634 "ath10k PEER stats", num_peers); 635 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 636 "================="); 637 638 list_for_each_entry(peer, &fw_stats->peers, list) { 639 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n", 640 "Peer MAC address", peer->peer_macaddr); 641 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 642 "Peer RSSI", peer->peer_rssi); 643 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 644 "Peer TX rate", peer->peer_tx_rate); 645 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 646 "Peer RX rate", peer->peer_rx_rate); 647 len += scnprintf(buf + len, buf_len - len, "\n"); 648 } 649 650 unlock: 651 spin_unlock_bh(&ar->data_lock); 652 653 if (len >= buf_len) 654 buf[len - 1] = 0; 655 else 656 buf[len] = 0; 657 } 658 659 static int ath10k_fw_stats_open(struct inode *inode, struct file *file) 660 { 661 struct ath10k *ar = inode->i_private; 662 void *buf = NULL; 663 int ret; 664 665 mutex_lock(&ar->conf_mutex); 666 667 if (ar->state != ATH10K_STATE_ON) { 668 ret = -ENETDOWN; 669 goto err_unlock; 670 } 671 672 buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE); 673 if (!buf) { 674 ret = -ENOMEM; 675 goto err_unlock; 676 } 677 678 ret = ath10k_debug_fw_stats_request(ar); 679 if (ret) { 680 ath10k_warn(ar, "failed to request fw stats: %d\n", ret); 681 goto err_free; 682 } 683 684 ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf); 685 file->private_data = buf; 686 687 mutex_unlock(&ar->conf_mutex); 688 return 0; 689 690 err_free: 691 vfree(buf); 692 693 err_unlock: 694 mutex_unlock(&ar->conf_mutex); 695 return ret; 696 } 697 698 static int ath10k_fw_stats_release(struct inode *inode, struct file *file) 699 { 700 vfree(file->private_data); 701 702 return 0; 703 } 704 705 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf, 706 size_t count, loff_t *ppos) 707 { 708 const char *buf = file->private_data; 709 unsigned int len = strlen(buf); 710 711 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 712 } 713 714 static const struct file_operations fops_fw_stats = { 715 .open = ath10k_fw_stats_open, 716 .release = ath10k_fw_stats_release, 717 .read = ath10k_fw_stats_read, 718 .owner = THIS_MODULE, 719 .llseek = default_llseek, 720 }; 721 722 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file, 723 char __user *user_buf, 724 size_t count, loff_t *ppos) 725 { 726 struct ath10k *ar = file->private_data; 727 int ret, len, buf_len; 728 char *buf; 729 730 buf_len = 500; 731 buf = kmalloc(buf_len, GFP_KERNEL); 732 if (!buf) 733 return -ENOMEM; 734 735 spin_lock_bh(&ar->data_lock); 736 737 len = 0; 738 len += scnprintf(buf + len, buf_len - len, 739 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter); 740 len += scnprintf(buf + len, buf_len - len, 741 "fw_warm_reset_counter\t\t%d\n", 742 ar->stats.fw_warm_reset_counter); 743 len += scnprintf(buf + len, buf_len - len, 744 "fw_cold_reset_counter\t\t%d\n", 745 ar->stats.fw_cold_reset_counter); 746 747 spin_unlock_bh(&ar->data_lock); 748 749 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 750 751 kfree(buf); 752 753 return ret; 754 } 755 756 static const struct file_operations fops_fw_reset_stats = { 757 .open = simple_open, 758 .read = ath10k_debug_fw_reset_stats_read, 759 .owner = THIS_MODULE, 760 .llseek = default_llseek, 761 }; 762 763 /* This is a clean assert crash in firmware. */ 764 static int ath10k_debug_fw_assert(struct ath10k *ar) 765 { 766 struct wmi_vdev_install_key_cmd *cmd; 767 struct sk_buff *skb; 768 769 skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16); 770 if (!skb) 771 return -ENOMEM; 772 773 cmd = (struct wmi_vdev_install_key_cmd *)skb->data; 774 memset(cmd, 0, sizeof(*cmd)); 775 776 /* big enough number so that firmware asserts */ 777 cmd->vdev_id = __cpu_to_le32(0x7ffe); 778 779 return ath10k_wmi_cmd_send(ar, skb, 780 ar->wmi.cmd->vdev_install_key_cmdid); 781 } 782 783 static ssize_t ath10k_read_simulate_fw_crash(struct file *file, 784 char __user *user_buf, 785 size_t count, loff_t *ppos) 786 { 787 const char buf[] = 788 "To simulate firmware crash write one of the keywords to this file:\n" 789 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n" 790 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n" 791 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n" 792 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n"; 793 794 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 795 } 796 797 /* Simulate firmware crash: 798 * 'soft': Call wmi command causing firmware hang. This firmware hang is 799 * recoverable by warm firmware reset. 800 * 'hard': Force firmware crash by setting any vdev parameter for not allowed 801 * vdev id. This is hard firmware crash because it is recoverable only by cold 802 * firmware reset. 803 */ 804 static ssize_t ath10k_write_simulate_fw_crash(struct file *file, 805 const char __user *user_buf, 806 size_t count, loff_t *ppos) 807 { 808 struct ath10k *ar = file->private_data; 809 char buf[32]; 810 int ret; 811 812 mutex_lock(&ar->conf_mutex); 813 814 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 815 816 /* make sure that buf is null terminated */ 817 buf[sizeof(buf) - 1] = 0; 818 819 if (ar->state != ATH10K_STATE_ON && 820 ar->state != ATH10K_STATE_RESTARTED) { 821 ret = -ENETDOWN; 822 goto exit; 823 } 824 825 /* drop the possible '\n' from the end */ 826 if (buf[count - 1] == '\n') { 827 buf[count - 1] = 0; 828 count--; 829 } 830 831 if (!strcmp(buf, "soft")) { 832 ath10k_info(ar, "simulating soft firmware crash\n"); 833 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0); 834 } else if (!strcmp(buf, "hard")) { 835 ath10k_info(ar, "simulating hard firmware crash\n"); 836 /* 0x7fff is vdev id, and it is always out of range for all 837 * firmware variants in order to force a firmware crash. 838 */ 839 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff, 840 ar->wmi.vdev_param->rts_threshold, 841 0); 842 } else if (!strcmp(buf, "assert")) { 843 ath10k_info(ar, "simulating firmware assert crash\n"); 844 ret = ath10k_debug_fw_assert(ar); 845 } else if (!strcmp(buf, "hw-restart")) { 846 ath10k_info(ar, "user requested hw restart\n"); 847 queue_work(ar->workqueue, &ar->restart_work); 848 ret = 0; 849 } else { 850 ret = -EINVAL; 851 goto exit; 852 } 853 854 if (ret) { 855 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret); 856 goto exit; 857 } 858 859 ret = count; 860 861 exit: 862 mutex_unlock(&ar->conf_mutex); 863 return ret; 864 } 865 866 static const struct file_operations fops_simulate_fw_crash = { 867 .read = ath10k_read_simulate_fw_crash, 868 .write = ath10k_write_simulate_fw_crash, 869 .open = simple_open, 870 .owner = THIS_MODULE, 871 .llseek = default_llseek, 872 }; 873 874 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf, 875 size_t count, loff_t *ppos) 876 { 877 struct ath10k *ar = file->private_data; 878 unsigned int len; 879 char buf[50]; 880 881 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id); 882 883 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 884 } 885 886 static const struct file_operations fops_chip_id = { 887 .read = ath10k_read_chip_id, 888 .open = simple_open, 889 .owner = THIS_MODULE, 890 .llseek = default_llseek, 891 }; 892 893 struct ath10k_fw_crash_data * 894 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar) 895 { 896 struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; 897 898 lockdep_assert_held(&ar->data_lock); 899 900 crash_data->crashed_since_read = true; 901 uuid_le_gen(&crash_data->uuid); 902 getnstimeofday(&crash_data->timestamp); 903 904 return crash_data; 905 } 906 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data); 907 908 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) 909 { 910 struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; 911 struct ath10k_dump_file_data *dump_data; 912 struct ath10k_tlv_dump_data *dump_tlv; 913 int hdr_len = sizeof(*dump_data); 914 unsigned int len, sofar = 0; 915 unsigned char *buf; 916 917 len = hdr_len; 918 len += sizeof(*dump_tlv) + sizeof(crash_data->registers); 919 920 sofar += hdr_len; 921 922 /* This is going to get big when we start dumping FW RAM and such, 923 * so go ahead and use vmalloc. 924 */ 925 buf = vzalloc(len); 926 if (!buf) 927 return NULL; 928 929 spin_lock_bh(&ar->data_lock); 930 931 if (!crash_data->crashed_since_read) { 932 spin_unlock_bh(&ar->data_lock); 933 vfree(buf); 934 return NULL; 935 } 936 937 dump_data = (struct ath10k_dump_file_data *)(buf); 938 strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP", 939 sizeof(dump_data->df_magic)); 940 dump_data->len = cpu_to_le32(len); 941 942 dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION); 943 944 memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid)); 945 dump_data->chip_id = cpu_to_le32(ar->chip_id); 946 dump_data->bus_type = cpu_to_le32(0); 947 dump_data->target_version = cpu_to_le32(ar->target_version); 948 dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major); 949 dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor); 950 dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release); 951 dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build); 952 dump_data->phy_capability = cpu_to_le32(ar->phy_capability); 953 dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power); 954 dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power); 955 dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info); 956 dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info); 957 dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains); 958 959 strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version, 960 sizeof(dump_data->fw_ver)); 961 962 dump_data->kernel_ver_code = 0; 963 strlcpy(dump_data->kernel_ver, init_utsname()->release, 964 sizeof(dump_data->kernel_ver)); 965 966 dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec); 967 dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec); 968 969 /* Gather crash-dump */ 970 dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar); 971 dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS); 972 dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers)); 973 memcpy(dump_tlv->tlv_data, &crash_data->registers, 974 sizeof(crash_data->registers)); 975 sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers); 976 977 ar->debug.fw_crash_data->crashed_since_read = false; 978 979 spin_unlock_bh(&ar->data_lock); 980 981 return dump_data; 982 } 983 984 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file) 985 { 986 struct ath10k *ar = inode->i_private; 987 struct ath10k_dump_file_data *dump; 988 989 dump = ath10k_build_dump_file(ar); 990 if (!dump) 991 return -ENODATA; 992 993 file->private_data = dump; 994 995 return 0; 996 } 997 998 static ssize_t ath10k_fw_crash_dump_read(struct file *file, 999 char __user *user_buf, 1000 size_t count, loff_t *ppos) 1001 { 1002 struct ath10k_dump_file_data *dump_file = file->private_data; 1003 1004 return simple_read_from_buffer(user_buf, count, ppos, 1005 dump_file, 1006 le32_to_cpu(dump_file->len)); 1007 } 1008 1009 static int ath10k_fw_crash_dump_release(struct inode *inode, 1010 struct file *file) 1011 { 1012 vfree(file->private_data); 1013 1014 return 0; 1015 } 1016 1017 static const struct file_operations fops_fw_crash_dump = { 1018 .open = ath10k_fw_crash_dump_open, 1019 .read = ath10k_fw_crash_dump_read, 1020 .release = ath10k_fw_crash_dump_release, 1021 .owner = THIS_MODULE, 1022 .llseek = default_llseek, 1023 }; 1024 1025 static ssize_t ath10k_reg_addr_read(struct file *file, 1026 char __user *user_buf, 1027 size_t count, loff_t *ppos) 1028 { 1029 struct ath10k *ar = file->private_data; 1030 u8 buf[32]; 1031 unsigned int len = 0; 1032 u32 reg_addr; 1033 1034 mutex_lock(&ar->conf_mutex); 1035 reg_addr = ar->debug.reg_addr; 1036 mutex_unlock(&ar->conf_mutex); 1037 1038 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr); 1039 1040 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1041 } 1042 1043 static ssize_t ath10k_reg_addr_write(struct file *file, 1044 const char __user *user_buf, 1045 size_t count, loff_t *ppos) 1046 { 1047 struct ath10k *ar = file->private_data; 1048 u32 reg_addr; 1049 int ret; 1050 1051 ret = kstrtou32_from_user(user_buf, count, 0, ®_addr); 1052 if (ret) 1053 return ret; 1054 1055 if (!IS_ALIGNED(reg_addr, 4)) 1056 return -EFAULT; 1057 1058 mutex_lock(&ar->conf_mutex); 1059 ar->debug.reg_addr = reg_addr; 1060 mutex_unlock(&ar->conf_mutex); 1061 1062 return count; 1063 } 1064 1065 static const struct file_operations fops_reg_addr = { 1066 .read = ath10k_reg_addr_read, 1067 .write = ath10k_reg_addr_write, 1068 .open = simple_open, 1069 .owner = THIS_MODULE, 1070 .llseek = default_llseek, 1071 }; 1072 1073 static ssize_t ath10k_reg_value_read(struct file *file, 1074 char __user *user_buf, 1075 size_t count, loff_t *ppos) 1076 { 1077 struct ath10k *ar = file->private_data; 1078 u8 buf[48]; 1079 unsigned int len; 1080 u32 reg_addr, reg_val; 1081 int ret; 1082 1083 mutex_lock(&ar->conf_mutex); 1084 1085 if (ar->state != ATH10K_STATE_ON && 1086 ar->state != ATH10K_STATE_UTF) { 1087 ret = -ENETDOWN; 1088 goto exit; 1089 } 1090 1091 reg_addr = ar->debug.reg_addr; 1092 1093 reg_val = ath10k_hif_read32(ar, reg_addr); 1094 len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val); 1095 1096 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1097 1098 exit: 1099 mutex_unlock(&ar->conf_mutex); 1100 1101 return ret; 1102 } 1103 1104 static ssize_t ath10k_reg_value_write(struct file *file, 1105 const char __user *user_buf, 1106 size_t count, loff_t *ppos) 1107 { 1108 struct ath10k *ar = file->private_data; 1109 u32 reg_addr, reg_val; 1110 int ret; 1111 1112 mutex_lock(&ar->conf_mutex); 1113 1114 if (ar->state != ATH10K_STATE_ON && 1115 ar->state != ATH10K_STATE_UTF) { 1116 ret = -ENETDOWN; 1117 goto exit; 1118 } 1119 1120 reg_addr = ar->debug.reg_addr; 1121 1122 ret = kstrtou32_from_user(user_buf, count, 0, ®_val); 1123 if (ret) 1124 goto exit; 1125 1126 ath10k_hif_write32(ar, reg_addr, reg_val); 1127 1128 ret = count; 1129 1130 exit: 1131 mutex_unlock(&ar->conf_mutex); 1132 1133 return ret; 1134 } 1135 1136 static const struct file_operations fops_reg_value = { 1137 .read = ath10k_reg_value_read, 1138 .write = ath10k_reg_value_write, 1139 .open = simple_open, 1140 .owner = THIS_MODULE, 1141 .llseek = default_llseek, 1142 }; 1143 1144 static ssize_t ath10k_mem_value_read(struct file *file, 1145 char __user *user_buf, 1146 size_t count, loff_t *ppos) 1147 { 1148 struct ath10k *ar = file->private_data; 1149 u8 *buf; 1150 int ret; 1151 1152 if (*ppos < 0) 1153 return -EINVAL; 1154 1155 if (!count) 1156 return 0; 1157 1158 mutex_lock(&ar->conf_mutex); 1159 1160 buf = vmalloc(count); 1161 if (!buf) { 1162 ret = -ENOMEM; 1163 goto exit; 1164 } 1165 1166 if (ar->state != ATH10K_STATE_ON && 1167 ar->state != ATH10K_STATE_UTF) { 1168 ret = -ENETDOWN; 1169 goto exit; 1170 } 1171 1172 ret = ath10k_hif_diag_read(ar, *ppos, buf, count); 1173 if (ret) { 1174 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n", 1175 (u32)(*ppos), ret); 1176 goto exit; 1177 } 1178 1179 ret = copy_to_user(user_buf, buf, count); 1180 if (ret) { 1181 ret = -EFAULT; 1182 goto exit; 1183 } 1184 1185 count -= ret; 1186 *ppos += count; 1187 ret = count; 1188 1189 exit: 1190 vfree(buf); 1191 mutex_unlock(&ar->conf_mutex); 1192 1193 return ret; 1194 } 1195 1196 static ssize_t ath10k_mem_value_write(struct file *file, 1197 const char __user *user_buf, 1198 size_t count, loff_t *ppos) 1199 { 1200 struct ath10k *ar = file->private_data; 1201 u8 *buf; 1202 int ret; 1203 1204 if (*ppos < 0) 1205 return -EINVAL; 1206 1207 if (!count) 1208 return 0; 1209 1210 mutex_lock(&ar->conf_mutex); 1211 1212 buf = vmalloc(count); 1213 if (!buf) { 1214 ret = -ENOMEM; 1215 goto exit; 1216 } 1217 1218 if (ar->state != ATH10K_STATE_ON && 1219 ar->state != ATH10K_STATE_UTF) { 1220 ret = -ENETDOWN; 1221 goto exit; 1222 } 1223 1224 ret = copy_from_user(buf, user_buf, count); 1225 if (ret) { 1226 ret = -EFAULT; 1227 goto exit; 1228 } 1229 1230 ret = ath10k_hif_diag_write(ar, *ppos, buf, count); 1231 if (ret) { 1232 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n", 1233 (u32)(*ppos), ret); 1234 goto exit; 1235 } 1236 1237 *ppos += count; 1238 ret = count; 1239 1240 exit: 1241 vfree(buf); 1242 mutex_unlock(&ar->conf_mutex); 1243 1244 return ret; 1245 } 1246 1247 static const struct file_operations fops_mem_value = { 1248 .read = ath10k_mem_value_read, 1249 .write = ath10k_mem_value_write, 1250 .open = simple_open, 1251 .owner = THIS_MODULE, 1252 .llseek = default_llseek, 1253 }; 1254 1255 static int ath10k_debug_htt_stats_req(struct ath10k *ar) 1256 { 1257 u64 cookie; 1258 int ret; 1259 1260 lockdep_assert_held(&ar->conf_mutex); 1261 1262 if (ar->debug.htt_stats_mask == 0) 1263 /* htt stats are disabled */ 1264 return 0; 1265 1266 if (ar->state != ATH10K_STATE_ON) 1267 return 0; 1268 1269 cookie = get_jiffies_64(); 1270 1271 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask, 1272 cookie); 1273 if (ret) { 1274 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret); 1275 return ret; 1276 } 1277 1278 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork, 1279 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL)); 1280 1281 return 0; 1282 } 1283 1284 static void ath10k_debug_htt_stats_dwork(struct work_struct *work) 1285 { 1286 struct ath10k *ar = container_of(work, struct ath10k, 1287 debug.htt_stats_dwork.work); 1288 1289 mutex_lock(&ar->conf_mutex); 1290 1291 ath10k_debug_htt_stats_req(ar); 1292 1293 mutex_unlock(&ar->conf_mutex); 1294 } 1295 1296 static ssize_t ath10k_read_htt_stats_mask(struct file *file, 1297 char __user *user_buf, 1298 size_t count, loff_t *ppos) 1299 { 1300 struct ath10k *ar = file->private_data; 1301 char buf[32]; 1302 unsigned int len; 1303 1304 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask); 1305 1306 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1307 } 1308 1309 static ssize_t ath10k_write_htt_stats_mask(struct file *file, 1310 const char __user *user_buf, 1311 size_t count, loff_t *ppos) 1312 { 1313 struct ath10k *ar = file->private_data; 1314 unsigned long mask; 1315 int ret; 1316 1317 ret = kstrtoul_from_user(user_buf, count, 0, &mask); 1318 if (ret) 1319 return ret; 1320 1321 /* max 8 bit masks (for now) */ 1322 if (mask > 0xff) 1323 return -E2BIG; 1324 1325 mutex_lock(&ar->conf_mutex); 1326 1327 ar->debug.htt_stats_mask = mask; 1328 1329 ret = ath10k_debug_htt_stats_req(ar); 1330 if (ret) 1331 goto out; 1332 1333 ret = count; 1334 1335 out: 1336 mutex_unlock(&ar->conf_mutex); 1337 1338 return ret; 1339 } 1340 1341 static const struct file_operations fops_htt_stats_mask = { 1342 .read = ath10k_read_htt_stats_mask, 1343 .write = ath10k_write_htt_stats_mask, 1344 .open = simple_open, 1345 .owner = THIS_MODULE, 1346 .llseek = default_llseek, 1347 }; 1348 1349 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file, 1350 char __user *user_buf, 1351 size_t count, loff_t *ppos) 1352 { 1353 struct ath10k *ar = file->private_data; 1354 char buf[64]; 1355 u8 amsdu = 3, ampdu = 64; 1356 unsigned int len; 1357 1358 mutex_lock(&ar->conf_mutex); 1359 1360 if (ar->debug.htt_max_amsdu) 1361 amsdu = ar->debug.htt_max_amsdu; 1362 1363 if (ar->debug.htt_max_ampdu) 1364 ampdu = ar->debug.htt_max_ampdu; 1365 1366 mutex_unlock(&ar->conf_mutex); 1367 1368 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu); 1369 1370 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1371 } 1372 1373 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file, 1374 const char __user *user_buf, 1375 size_t count, loff_t *ppos) 1376 { 1377 struct ath10k *ar = file->private_data; 1378 int res; 1379 char buf[64]; 1380 unsigned int amsdu, ampdu; 1381 1382 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 1383 1384 /* make sure that buf is null terminated */ 1385 buf[sizeof(buf) - 1] = 0; 1386 1387 res = sscanf(buf, "%u %u", &amsdu, &du); 1388 1389 if (res != 2) 1390 return -EINVAL; 1391 1392 mutex_lock(&ar->conf_mutex); 1393 1394 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu); 1395 if (res) 1396 goto out; 1397 1398 res = count; 1399 ar->debug.htt_max_amsdu = amsdu; 1400 ar->debug.htt_max_ampdu = ampdu; 1401 1402 out: 1403 mutex_unlock(&ar->conf_mutex); 1404 return res; 1405 } 1406 1407 static const struct file_operations fops_htt_max_amsdu_ampdu = { 1408 .read = ath10k_read_htt_max_amsdu_ampdu, 1409 .write = ath10k_write_htt_max_amsdu_ampdu, 1410 .open = simple_open, 1411 .owner = THIS_MODULE, 1412 .llseek = default_llseek, 1413 }; 1414 1415 static ssize_t ath10k_read_fw_dbglog(struct file *file, 1416 char __user *user_buf, 1417 size_t count, loff_t *ppos) 1418 { 1419 struct ath10k *ar = file->private_data; 1420 unsigned int len; 1421 char buf[64]; 1422 1423 len = scnprintf(buf, sizeof(buf), "0x%08x %u\n", 1424 ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level); 1425 1426 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1427 } 1428 1429 static ssize_t ath10k_write_fw_dbglog(struct file *file, 1430 const char __user *user_buf, 1431 size_t count, loff_t *ppos) 1432 { 1433 struct ath10k *ar = file->private_data; 1434 int ret; 1435 char buf[64]; 1436 unsigned int log_level, mask; 1437 1438 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 1439 1440 /* make sure that buf is null terminated */ 1441 buf[sizeof(buf) - 1] = 0; 1442 1443 ret = sscanf(buf, "%x %u", &mask, &log_level); 1444 1445 if (!ret) 1446 return -EINVAL; 1447 1448 if (ret == 1) 1449 /* default if user did not specify */ 1450 log_level = ATH10K_DBGLOG_LEVEL_WARN; 1451 1452 mutex_lock(&ar->conf_mutex); 1453 1454 ar->debug.fw_dbglog_mask = mask; 1455 ar->debug.fw_dbglog_level = log_level; 1456 1457 if (ar->state == ATH10K_STATE_ON) { 1458 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1459 ar->debug.fw_dbglog_level); 1460 if (ret) { 1461 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n", 1462 ret); 1463 goto exit; 1464 } 1465 } 1466 1467 ret = count; 1468 1469 exit: 1470 mutex_unlock(&ar->conf_mutex); 1471 1472 return ret; 1473 } 1474 1475 /* TODO: Would be nice to always support ethtool stats, would need to 1476 * move the stats storage out of ath10k_debug, or always have ath10k_debug 1477 * struct available.. 1478 */ 1479 1480 /* This generally cooresponds to the debugfs fw_stats file */ 1481 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = { 1482 "tx_pkts_nic", 1483 "tx_bytes_nic", 1484 "rx_pkts_nic", 1485 "rx_bytes_nic", 1486 "d_noise_floor", 1487 "d_cycle_count", 1488 "d_phy_error", 1489 "d_rts_bad", 1490 "d_rts_good", 1491 "d_tx_power", /* in .5 dbM I think */ 1492 "d_rx_crc_err", /* fcs_bad */ 1493 "d_no_beacon", 1494 "d_tx_mpdus_queued", 1495 "d_tx_msdu_queued", 1496 "d_tx_msdu_dropped", 1497 "d_local_enqued", 1498 "d_local_freed", 1499 "d_tx_ppdu_hw_queued", 1500 "d_tx_ppdu_reaped", 1501 "d_tx_fifo_underrun", 1502 "d_tx_ppdu_abort", 1503 "d_tx_mpdu_requed", 1504 "d_tx_excessive_retries", 1505 "d_tx_hw_rate", 1506 "d_tx_dropped_sw_retries", 1507 "d_tx_illegal_rate", 1508 "d_tx_continuous_xretries", 1509 "d_tx_timeout", 1510 "d_tx_mpdu_txop_limit", 1511 "d_pdev_resets", 1512 "d_rx_mid_ppdu_route_change", 1513 "d_rx_status", 1514 "d_rx_extra_frags_ring0", 1515 "d_rx_extra_frags_ring1", 1516 "d_rx_extra_frags_ring2", 1517 "d_rx_extra_frags_ring3", 1518 "d_rx_msdu_htt", 1519 "d_rx_mpdu_htt", 1520 "d_rx_msdu_stack", 1521 "d_rx_mpdu_stack", 1522 "d_rx_phy_err", 1523 "d_rx_phy_err_drops", 1524 "d_rx_mpdu_errors", /* FCS, MIC, ENC */ 1525 "d_fw_crash_count", 1526 "d_fw_warm_reset_count", 1527 "d_fw_cold_reset_count", 1528 }; 1529 1530 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats) 1531 1532 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, 1533 struct ieee80211_vif *vif, 1534 u32 sset, u8 *data) 1535 { 1536 if (sset == ETH_SS_STATS) 1537 memcpy(data, *ath10k_gstrings_stats, 1538 sizeof(ath10k_gstrings_stats)); 1539 } 1540 1541 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw, 1542 struct ieee80211_vif *vif, int sset) 1543 { 1544 if (sset == ETH_SS_STATS) 1545 return ATH10K_SSTATS_LEN; 1546 1547 return 0; 1548 } 1549 1550 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw, 1551 struct ieee80211_vif *vif, 1552 struct ethtool_stats *stats, u64 *data) 1553 { 1554 struct ath10k *ar = hw->priv; 1555 static const struct ath10k_fw_stats_pdev zero_stats = {}; 1556 const struct ath10k_fw_stats_pdev *pdev_stats; 1557 int i = 0, ret; 1558 1559 mutex_lock(&ar->conf_mutex); 1560 1561 if (ar->state == ATH10K_STATE_ON) { 1562 ret = ath10k_debug_fw_stats_request(ar); 1563 if (ret) { 1564 /* just print a warning and try to use older results */ 1565 ath10k_warn(ar, 1566 "failed to get fw stats for ethtool: %d\n", 1567 ret); 1568 } 1569 } 1570 1571 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs, 1572 struct ath10k_fw_stats_pdev, 1573 list); 1574 if (!pdev_stats) { 1575 /* no results available so just return zeroes */ 1576 pdev_stats = &zero_stats; 1577 } 1578 1579 spin_lock_bh(&ar->data_lock); 1580 1581 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */ 1582 data[i++] = 0; /* tx bytes */ 1583 data[i++] = pdev_stats->htt_mpdus; 1584 data[i++] = 0; /* rx bytes */ 1585 data[i++] = pdev_stats->ch_noise_floor; 1586 data[i++] = pdev_stats->cycle_count; 1587 data[i++] = pdev_stats->phy_err_count; 1588 data[i++] = pdev_stats->rts_bad; 1589 data[i++] = pdev_stats->rts_good; 1590 data[i++] = pdev_stats->chan_tx_power; 1591 data[i++] = pdev_stats->fcs_bad; 1592 data[i++] = pdev_stats->no_beacons; 1593 data[i++] = pdev_stats->mpdu_enqued; 1594 data[i++] = pdev_stats->msdu_enqued; 1595 data[i++] = pdev_stats->wmm_drop; 1596 data[i++] = pdev_stats->local_enqued; 1597 data[i++] = pdev_stats->local_freed; 1598 data[i++] = pdev_stats->hw_queued; 1599 data[i++] = pdev_stats->hw_reaped; 1600 data[i++] = pdev_stats->underrun; 1601 data[i++] = pdev_stats->tx_abort; 1602 data[i++] = pdev_stats->mpdus_requed; 1603 data[i++] = pdev_stats->tx_ko; 1604 data[i++] = pdev_stats->data_rc; 1605 data[i++] = pdev_stats->sw_retry_failure; 1606 data[i++] = pdev_stats->illgl_rate_phy_err; 1607 data[i++] = pdev_stats->pdev_cont_xretry; 1608 data[i++] = pdev_stats->pdev_tx_timeout; 1609 data[i++] = pdev_stats->txop_ovf; 1610 data[i++] = pdev_stats->pdev_resets; 1611 data[i++] = pdev_stats->mid_ppdu_route_change; 1612 data[i++] = pdev_stats->status_rcvd; 1613 data[i++] = pdev_stats->r0_frags; 1614 data[i++] = pdev_stats->r1_frags; 1615 data[i++] = pdev_stats->r2_frags; 1616 data[i++] = pdev_stats->r3_frags; 1617 data[i++] = pdev_stats->htt_msdus; 1618 data[i++] = pdev_stats->htt_mpdus; 1619 data[i++] = pdev_stats->loc_msdus; 1620 data[i++] = pdev_stats->loc_mpdus; 1621 data[i++] = pdev_stats->phy_errs; 1622 data[i++] = pdev_stats->phy_err_drop; 1623 data[i++] = pdev_stats->mpdu_errs; 1624 data[i++] = ar->stats.fw_crash_counter; 1625 data[i++] = ar->stats.fw_warm_reset_counter; 1626 data[i++] = ar->stats.fw_cold_reset_counter; 1627 1628 spin_unlock_bh(&ar->data_lock); 1629 1630 mutex_unlock(&ar->conf_mutex); 1631 1632 WARN_ON(i != ATH10K_SSTATS_LEN); 1633 } 1634 1635 static const struct file_operations fops_fw_dbglog = { 1636 .read = ath10k_read_fw_dbglog, 1637 .write = ath10k_write_fw_dbglog, 1638 .open = simple_open, 1639 .owner = THIS_MODULE, 1640 .llseek = default_llseek, 1641 }; 1642 1643 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file) 1644 { 1645 struct ath10k *ar = inode->i_private; 1646 void *buf; 1647 u32 hi_addr; 1648 __le32 addr; 1649 int ret; 1650 1651 mutex_lock(&ar->conf_mutex); 1652 1653 if (ar->state != ATH10K_STATE_ON && 1654 ar->state != ATH10K_STATE_UTF) { 1655 ret = -ENETDOWN; 1656 goto err; 1657 } 1658 1659 buf = vmalloc(QCA988X_CAL_DATA_LEN); 1660 if (!buf) { 1661 ret = -ENOMEM; 1662 goto err; 1663 } 1664 1665 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); 1666 1667 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); 1668 if (ret) { 1669 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret); 1670 goto err_vfree; 1671 } 1672 1673 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf, 1674 QCA988X_CAL_DATA_LEN); 1675 if (ret) { 1676 ath10k_warn(ar, "failed to read calibration data: %d\n", ret); 1677 goto err_vfree; 1678 } 1679 1680 file->private_data = buf; 1681 1682 mutex_unlock(&ar->conf_mutex); 1683 1684 return 0; 1685 1686 err_vfree: 1687 vfree(buf); 1688 1689 err: 1690 mutex_unlock(&ar->conf_mutex); 1691 1692 return ret; 1693 } 1694 1695 static ssize_t ath10k_debug_cal_data_read(struct file *file, 1696 char __user *user_buf, 1697 size_t count, loff_t *ppos) 1698 { 1699 void *buf = file->private_data; 1700 1701 return simple_read_from_buffer(user_buf, count, ppos, 1702 buf, QCA988X_CAL_DATA_LEN); 1703 } 1704 1705 static int ath10k_debug_cal_data_release(struct inode *inode, 1706 struct file *file) 1707 { 1708 vfree(file->private_data); 1709 1710 return 0; 1711 } 1712 1713 static ssize_t ath10k_write_ani_enable(struct file *file, 1714 const char __user *user_buf, 1715 size_t count, loff_t *ppos) 1716 { 1717 struct ath10k *ar = file->private_data; 1718 int ret; 1719 u8 enable; 1720 1721 if (kstrtou8_from_user(user_buf, count, 0, &enable)) 1722 return -EINVAL; 1723 1724 mutex_lock(&ar->conf_mutex); 1725 1726 if (ar->ani_enabled == enable) { 1727 ret = count; 1728 goto exit; 1729 } 1730 1731 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable, 1732 enable); 1733 if (ret) { 1734 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret); 1735 goto exit; 1736 } 1737 ar->ani_enabled = enable; 1738 1739 ret = count; 1740 1741 exit: 1742 mutex_unlock(&ar->conf_mutex); 1743 1744 return ret; 1745 } 1746 1747 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf, 1748 size_t count, loff_t *ppos) 1749 { 1750 struct ath10k *ar = file->private_data; 1751 int len = 0; 1752 char buf[32]; 1753 1754 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 1755 ar->ani_enabled); 1756 1757 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1758 } 1759 1760 static const struct file_operations fops_ani_enable = { 1761 .read = ath10k_read_ani_enable, 1762 .write = ath10k_write_ani_enable, 1763 .open = simple_open, 1764 .owner = THIS_MODULE, 1765 .llseek = default_llseek, 1766 }; 1767 1768 static const struct file_operations fops_cal_data = { 1769 .open = ath10k_debug_cal_data_open, 1770 .read = ath10k_debug_cal_data_read, 1771 .release = ath10k_debug_cal_data_release, 1772 .owner = THIS_MODULE, 1773 .llseek = default_llseek, 1774 }; 1775 1776 static ssize_t ath10k_read_nf_cal_period(struct file *file, 1777 char __user *user_buf, 1778 size_t count, loff_t *ppos) 1779 { 1780 struct ath10k *ar = file->private_data; 1781 unsigned int len; 1782 char buf[32]; 1783 1784 len = scnprintf(buf, sizeof(buf), "%d\n", 1785 ar->debug.nf_cal_period); 1786 1787 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1788 } 1789 1790 static ssize_t ath10k_write_nf_cal_period(struct file *file, 1791 const char __user *user_buf, 1792 size_t count, loff_t *ppos) 1793 { 1794 struct ath10k *ar = file->private_data; 1795 unsigned long period; 1796 int ret; 1797 1798 ret = kstrtoul_from_user(user_buf, count, 0, &period); 1799 if (ret) 1800 return ret; 1801 1802 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX) 1803 return -EINVAL; 1804 1805 /* there's no way to switch back to the firmware default */ 1806 if (period == 0) 1807 return -EINVAL; 1808 1809 mutex_lock(&ar->conf_mutex); 1810 1811 ar->debug.nf_cal_period = period; 1812 1813 if (ar->state != ATH10K_STATE_ON) { 1814 /* firmware is not running, nothing else to do */ 1815 ret = count; 1816 goto exit; 1817 } 1818 1819 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period, 1820 ar->debug.nf_cal_period); 1821 if (ret) { 1822 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n", 1823 ret); 1824 goto exit; 1825 } 1826 1827 ret = count; 1828 1829 exit: 1830 mutex_unlock(&ar->conf_mutex); 1831 1832 return ret; 1833 } 1834 1835 static const struct file_operations fops_nf_cal_period = { 1836 .read = ath10k_read_nf_cal_period, 1837 .write = ath10k_write_nf_cal_period, 1838 .open = simple_open, 1839 .owner = THIS_MODULE, 1840 .llseek = default_llseek, 1841 }; 1842 1843 int ath10k_debug_start(struct ath10k *ar) 1844 { 1845 int ret; 1846 1847 lockdep_assert_held(&ar->conf_mutex); 1848 1849 ret = ath10k_debug_htt_stats_req(ar); 1850 if (ret) 1851 /* continue normally anyway, this isn't serious */ 1852 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", 1853 ret); 1854 1855 if (ar->debug.fw_dbglog_mask) { 1856 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1857 ATH10K_DBGLOG_LEVEL_WARN); 1858 if (ret) 1859 /* not serious */ 1860 ath10k_warn(ar, "failed to enable dbglog during start: %d", 1861 ret); 1862 } 1863 1864 if (ar->debug.pktlog_filter) { 1865 ret = ath10k_wmi_pdev_pktlog_enable(ar, 1866 ar->debug.pktlog_filter); 1867 if (ret) 1868 /* not serious */ 1869 ath10k_warn(ar, 1870 "failed to enable pktlog filter %x: %d\n", 1871 ar->debug.pktlog_filter, ret); 1872 } else { 1873 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1874 if (ret) 1875 /* not serious */ 1876 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1877 } 1878 1879 if (ar->debug.nf_cal_period) { 1880 ret = ath10k_wmi_pdev_set_param(ar, 1881 ar->wmi.pdev_param->cal_period, 1882 ar->debug.nf_cal_period); 1883 if (ret) 1884 /* not serious */ 1885 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", 1886 ret); 1887 } 1888 1889 return ret; 1890 } 1891 1892 void ath10k_debug_stop(struct ath10k *ar) 1893 { 1894 lockdep_assert_held(&ar->conf_mutex); 1895 1896 /* Must not use _sync to avoid deadlock, we do that in 1897 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid 1898 * warning from del_timer(). */ 1899 if (ar->debug.htt_stats_mask != 0) 1900 cancel_delayed_work(&ar->debug.htt_stats_dwork); 1901 1902 ar->debug.htt_max_amsdu = 0; 1903 ar->debug.htt_max_ampdu = 0; 1904 1905 ath10k_wmi_pdev_pktlog_disable(ar); 1906 } 1907 1908 static ssize_t ath10k_write_simulate_radar(struct file *file, 1909 const char __user *user_buf, 1910 size_t count, loff_t *ppos) 1911 { 1912 struct ath10k *ar = file->private_data; 1913 1914 ieee80211_radar_detected(ar->hw); 1915 1916 return count; 1917 } 1918 1919 static const struct file_operations fops_simulate_radar = { 1920 .write = ath10k_write_simulate_radar, 1921 .open = simple_open, 1922 .owner = THIS_MODULE, 1923 .llseek = default_llseek, 1924 }; 1925 1926 #define ATH10K_DFS_STAT(s, p) (\ 1927 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1928 ar->debug.dfs_stats.p)) 1929 1930 #define ATH10K_DFS_POOL_STAT(s, p) (\ 1931 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1932 ar->debug.dfs_pool_stats.p)) 1933 1934 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf, 1935 size_t count, loff_t *ppos) 1936 { 1937 int retval = 0, len = 0; 1938 const int size = 8000; 1939 struct ath10k *ar = file->private_data; 1940 char *buf; 1941 1942 buf = kzalloc(size, GFP_KERNEL); 1943 if (buf == NULL) 1944 return -ENOMEM; 1945 1946 if (!ar->dfs_detector) { 1947 len += scnprintf(buf + len, size - len, "DFS not enabled\n"); 1948 goto exit; 1949 } 1950 1951 ar->debug.dfs_pool_stats = 1952 ar->dfs_detector->get_stats(ar->dfs_detector); 1953 1954 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); 1955 1956 ATH10K_DFS_STAT("reported phy errors", phy_errors); 1957 ATH10K_DFS_STAT("pulse events reported", pulses_total); 1958 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected); 1959 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded); 1960 ATH10K_DFS_STAT("Radars detected", radar_detected); 1961 1962 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n"); 1963 ATH10K_DFS_POOL_STAT("Pool references", pool_reference); 1964 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated); 1965 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error); 1966 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used); 1967 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated); 1968 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error); 1969 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used); 1970 1971 exit: 1972 if (len > size) 1973 len = size; 1974 1975 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1976 kfree(buf); 1977 1978 return retval; 1979 } 1980 1981 static const struct file_operations fops_dfs_stats = { 1982 .read = ath10k_read_dfs_stats, 1983 .open = simple_open, 1984 .owner = THIS_MODULE, 1985 .llseek = default_llseek, 1986 }; 1987 1988 static ssize_t ath10k_write_pktlog_filter(struct file *file, 1989 const char __user *ubuf, 1990 size_t count, loff_t *ppos) 1991 { 1992 struct ath10k *ar = file->private_data; 1993 u32 filter; 1994 int ret; 1995 1996 if (kstrtouint_from_user(ubuf, count, 0, &filter)) 1997 return -EINVAL; 1998 1999 mutex_lock(&ar->conf_mutex); 2000 2001 if (ar->state != ATH10K_STATE_ON) { 2002 ar->debug.pktlog_filter = filter; 2003 ret = count; 2004 goto out; 2005 } 2006 2007 if (filter && (filter != ar->debug.pktlog_filter)) { 2008 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter); 2009 if (ret) { 2010 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n", 2011 ar->debug.pktlog_filter, ret); 2012 goto out; 2013 } 2014 } else { 2015 ret = ath10k_wmi_pdev_pktlog_disable(ar); 2016 if (ret) { 2017 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 2018 goto out; 2019 } 2020 } 2021 2022 ar->debug.pktlog_filter = filter; 2023 ret = count; 2024 2025 out: 2026 mutex_unlock(&ar->conf_mutex); 2027 return ret; 2028 } 2029 2030 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf, 2031 size_t count, loff_t *ppos) 2032 { 2033 char buf[32]; 2034 struct ath10k *ar = file->private_data; 2035 int len = 0; 2036 2037 mutex_lock(&ar->conf_mutex); 2038 len = scnprintf(buf, sizeof(buf) - len, "%08x\n", 2039 ar->debug.pktlog_filter); 2040 mutex_unlock(&ar->conf_mutex); 2041 2042 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2043 } 2044 2045 static const struct file_operations fops_pktlog_filter = { 2046 .read = ath10k_read_pktlog_filter, 2047 .write = ath10k_write_pktlog_filter, 2048 .open = simple_open 2049 }; 2050 2051 static ssize_t ath10k_write_quiet_period(struct file *file, 2052 const char __user *ubuf, 2053 size_t count, loff_t *ppos) 2054 { 2055 struct ath10k *ar = file->private_data; 2056 u32 period; 2057 2058 if (kstrtouint_from_user(ubuf, count, 0, &period)) 2059 return -EINVAL; 2060 2061 if (period < ATH10K_QUIET_PERIOD_MIN) { 2062 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n", 2063 period); 2064 return -EINVAL; 2065 } 2066 mutex_lock(&ar->conf_mutex); 2067 ar->thermal.quiet_period = period; 2068 ath10k_thermal_set_throttling(ar); 2069 mutex_unlock(&ar->conf_mutex); 2070 2071 return count; 2072 } 2073 2074 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf, 2075 size_t count, loff_t *ppos) 2076 { 2077 char buf[32]; 2078 struct ath10k *ar = file->private_data; 2079 int len = 0; 2080 2081 mutex_lock(&ar->conf_mutex); 2082 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2083 ar->thermal.quiet_period); 2084 mutex_unlock(&ar->conf_mutex); 2085 2086 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2087 } 2088 2089 static const struct file_operations fops_quiet_period = { 2090 .read = ath10k_read_quiet_period, 2091 .write = ath10k_write_quiet_period, 2092 .open = simple_open 2093 }; 2094 2095 int ath10k_debug_create(struct ath10k *ar) 2096 { 2097 ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data)); 2098 if (!ar->debug.fw_crash_data) 2099 return -ENOMEM; 2100 2101 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); 2102 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); 2103 INIT_LIST_HEAD(&ar->debug.fw_stats.peers); 2104 2105 return 0; 2106 } 2107 2108 void ath10k_debug_destroy(struct ath10k *ar) 2109 { 2110 vfree(ar->debug.fw_crash_data); 2111 ar->debug.fw_crash_data = NULL; 2112 2113 ath10k_debug_fw_stats_reset(ar); 2114 } 2115 2116 int ath10k_debug_register(struct ath10k *ar) 2117 { 2118 ar->debug.debugfs_phy = debugfs_create_dir("ath10k", 2119 ar->hw->wiphy->debugfsdir); 2120 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) { 2121 if (IS_ERR(ar->debug.debugfs_phy)) 2122 return PTR_ERR(ar->debug.debugfs_phy); 2123 2124 return -ENOMEM; 2125 } 2126 2127 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, 2128 ath10k_debug_htt_stats_dwork); 2129 2130 init_completion(&ar->debug.fw_stats_complete); 2131 2132 debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar, 2133 &fops_fw_stats); 2134 2135 debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy, 2136 ar, &fops_fw_reset_stats); 2137 2138 debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar, 2139 &fops_wmi_services); 2140 2141 debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy, 2142 ar, &fops_simulate_fw_crash); 2143 2144 debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy, 2145 ar, &fops_fw_crash_dump); 2146 2147 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, 2148 ar->debug.debugfs_phy, ar, &fops_reg_addr); 2149 2150 debugfs_create_file("reg_value", S_IRUSR | S_IWUSR, 2151 ar->debug.debugfs_phy, ar, &fops_reg_value); 2152 2153 debugfs_create_file("mem_value", S_IRUSR | S_IWUSR, 2154 ar->debug.debugfs_phy, ar, &fops_mem_value); 2155 2156 debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy, 2157 ar, &fops_chip_id); 2158 2159 debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy, 2160 ar, &fops_htt_stats_mask); 2161 2162 debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR, 2163 ar->debug.debugfs_phy, ar, 2164 &fops_htt_max_amsdu_ampdu); 2165 2166 debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy, 2167 ar, &fops_fw_dbglog); 2168 2169 debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy, 2170 ar, &fops_cal_data); 2171 2172 debugfs_create_file("ani_enable", S_IRUSR | S_IWUSR, 2173 ar->debug.debugfs_phy, ar, &fops_ani_enable); 2174 2175 debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR, 2176 ar->debug.debugfs_phy, ar, &fops_nf_cal_period); 2177 2178 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) { 2179 debugfs_create_file("dfs_simulate_radar", S_IWUSR, 2180 ar->debug.debugfs_phy, ar, 2181 &fops_simulate_radar); 2182 2183 debugfs_create_bool("dfs_block_radar_events", S_IWUSR, 2184 ar->debug.debugfs_phy, 2185 &ar->dfs_block_radar_events); 2186 2187 debugfs_create_file("dfs_stats", S_IRUSR, 2188 ar->debug.debugfs_phy, ar, 2189 &fops_dfs_stats); 2190 } 2191 2192 debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR, 2193 ar->debug.debugfs_phy, ar, &fops_pktlog_filter); 2194 2195 debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR, 2196 ar->debug.debugfs_phy, ar, &fops_quiet_period); 2197 2198 return 0; 2199 } 2200 2201 void ath10k_debug_unregister(struct ath10k *ar) 2202 { 2203 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); 2204 } 2205 2206 #endif /* CONFIG_ATH10K_DEBUGFS */ 2207 2208 #ifdef CONFIG_ATH10K_DEBUG 2209 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask, 2210 const char *fmt, ...) 2211 { 2212 struct va_format vaf; 2213 va_list args; 2214 2215 va_start(args, fmt); 2216 2217 vaf.fmt = fmt; 2218 vaf.va = &args; 2219 2220 if (ath10k_debug_mask & mask) 2221 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf); 2222 2223 trace_ath10k_log_dbg(ar, mask, &vaf); 2224 2225 va_end(args); 2226 } 2227 EXPORT_SYMBOL(ath10k_dbg); 2228 2229 void ath10k_dbg_dump(struct ath10k *ar, 2230 enum ath10k_debug_mask mask, 2231 const char *msg, const char *prefix, 2232 const void *buf, size_t len) 2233 { 2234 char linebuf[256]; 2235 unsigned int linebuflen; 2236 const void *ptr; 2237 2238 if (ath10k_debug_mask & mask) { 2239 if (msg) 2240 ath10k_dbg(ar, mask, "%s\n", msg); 2241 2242 for (ptr = buf; (ptr - buf) < len; ptr += 16) { 2243 linebuflen = 0; 2244 linebuflen += scnprintf(linebuf + linebuflen, 2245 sizeof(linebuf) - linebuflen, 2246 "%s%08x: ", 2247 (prefix ? prefix : ""), 2248 (unsigned int)(ptr - buf)); 2249 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1, 2250 linebuf + linebuflen, 2251 sizeof(linebuf) - linebuflen, true); 2252 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf); 2253 } 2254 } 2255 2256 /* tracing code doesn't like null strings :/ */ 2257 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "", 2258 buf, len); 2259 } 2260 EXPORT_SYMBOL(ath10k_dbg_dump); 2261 2262 #endif /* CONFIG_ATH10K_DEBUG */ 2263