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 char fw_features[128] = {}; 128 129 ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features)); 130 131 ath10k_info(ar, "%s (0x%08x, 0x%08x%s%s%s) fw %s api %d htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d features %s\n", 132 ar->hw_params.name, 133 ar->target_version, 134 ar->chip_id, 135 (strlen(ar->spec_board_id) > 0 ? ", " : ""), 136 ar->spec_board_id, 137 (strlen(ar->spec_board_id) > 0 && !ar->spec_board_loaded 138 ? " fallback" : ""), 139 ar->hw->wiphy->fw_version, 140 ar->fw_api, 141 ar->htt.target_version_major, 142 ar->htt.target_version_minor, 143 ar->wmi.op_version, 144 ar->htt.op_version, 145 ath10k_cal_mode_str(ar->cal_mode), 146 ar->max_num_stations, 147 test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags), 148 !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags), 149 fw_features); 150 ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n", 151 config_enabled(CONFIG_ATH10K_DEBUG), 152 config_enabled(CONFIG_ATH10K_DEBUGFS), 153 config_enabled(CONFIG_ATH10K_TRACING), 154 config_enabled(CONFIG_ATH10K_DFS_CERTIFIED), 155 config_enabled(CONFIG_NL80211_TESTMODE)); 156 } 157 EXPORT_SYMBOL(ath10k_print_driver_info); 158 159 void ath10k_err(struct ath10k *ar, const char *fmt, ...) 160 { 161 struct va_format vaf = { 162 .fmt = fmt, 163 }; 164 va_list args; 165 166 va_start(args, fmt); 167 vaf.va = &args; 168 dev_err(ar->dev, "%pV", &vaf); 169 trace_ath10k_log_err(ar, &vaf); 170 va_end(args); 171 } 172 EXPORT_SYMBOL(ath10k_err); 173 174 void ath10k_warn(struct ath10k *ar, const char *fmt, ...) 175 { 176 struct va_format vaf = { 177 .fmt = fmt, 178 }; 179 va_list args; 180 181 va_start(args, fmt); 182 vaf.va = &args; 183 dev_warn_ratelimited(ar->dev, "%pV", &vaf); 184 trace_ath10k_log_warn(ar, &vaf); 185 186 va_end(args); 187 } 188 EXPORT_SYMBOL(ath10k_warn); 189 190 #ifdef CONFIG_ATH10K_DEBUGFS 191 192 static ssize_t ath10k_read_wmi_services(struct file *file, 193 char __user *user_buf, 194 size_t count, loff_t *ppos) 195 { 196 struct ath10k *ar = file->private_data; 197 char *buf; 198 unsigned int len = 0, buf_len = 4096; 199 const char *name; 200 ssize_t ret_cnt; 201 bool enabled; 202 int i; 203 204 buf = kzalloc(buf_len, GFP_KERNEL); 205 if (!buf) 206 return -ENOMEM; 207 208 mutex_lock(&ar->conf_mutex); 209 210 if (len > buf_len) 211 len = buf_len; 212 213 spin_lock_bh(&ar->data_lock); 214 for (i = 0; i < WMI_SERVICE_MAX; i++) { 215 enabled = test_bit(i, ar->wmi.svc_map); 216 name = wmi_service_name(i); 217 218 if (!name) { 219 if (enabled) 220 len += scnprintf(buf + len, buf_len - len, 221 "%-40s %s (bit %d)\n", 222 "unknown", "enabled", i); 223 224 continue; 225 } 226 227 len += scnprintf(buf + len, buf_len - len, 228 "%-40s %s\n", 229 name, enabled ? "enabled" : "-"); 230 } 231 spin_unlock_bh(&ar->data_lock); 232 233 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 234 235 mutex_unlock(&ar->conf_mutex); 236 237 kfree(buf); 238 return ret_cnt; 239 } 240 241 static const struct file_operations fops_wmi_services = { 242 .read = ath10k_read_wmi_services, 243 .open = simple_open, 244 .owner = THIS_MODULE, 245 .llseek = default_llseek, 246 }; 247 248 static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head) 249 { 250 struct ath10k_fw_stats_pdev *i, *tmp; 251 252 list_for_each_entry_safe(i, tmp, head, list) { 253 list_del(&i->list); 254 kfree(i); 255 } 256 } 257 258 static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head) 259 { 260 struct ath10k_fw_stats_vdev *i, *tmp; 261 262 list_for_each_entry_safe(i, tmp, head, list) { 263 list_del(&i->list); 264 kfree(i); 265 } 266 } 267 268 static void ath10k_debug_fw_stats_peers_free(struct list_head *head) 269 { 270 struct ath10k_fw_stats_peer *i, *tmp; 271 272 list_for_each_entry_safe(i, tmp, head, list) { 273 list_del(&i->list); 274 kfree(i); 275 } 276 } 277 278 static void ath10k_debug_fw_stats_reset(struct ath10k *ar) 279 { 280 spin_lock_bh(&ar->data_lock); 281 ar->debug.fw_stats_done = false; 282 ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs); 283 ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); 284 ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers); 285 spin_unlock_bh(&ar->data_lock); 286 } 287 288 static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head) 289 { 290 struct ath10k_fw_stats_peer *i; 291 size_t num = 0; 292 293 list_for_each_entry(i, head, list) 294 ++num; 295 296 return num; 297 } 298 299 static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head) 300 { 301 struct ath10k_fw_stats_vdev *i; 302 size_t num = 0; 303 304 list_for_each_entry(i, head, list) 305 ++num; 306 307 return num; 308 } 309 310 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) 311 { 312 struct ath10k_fw_stats stats = {}; 313 bool is_start, is_started, is_end; 314 size_t num_peers; 315 size_t num_vdevs; 316 int ret; 317 318 INIT_LIST_HEAD(&stats.pdevs); 319 INIT_LIST_HEAD(&stats.vdevs); 320 INIT_LIST_HEAD(&stats.peers); 321 322 spin_lock_bh(&ar->data_lock); 323 ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats); 324 if (ret) { 325 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret); 326 goto free; 327 } 328 329 /* Stat data may exceed htc-wmi buffer limit. In such case firmware 330 * splits the stats data and delivers it in a ping-pong fashion of 331 * request cmd-update event. 332 * 333 * However there is no explicit end-of-data. Instead start-of-data is 334 * used as an implicit one. This works as follows: 335 * a) discard stat update events until one with pdev stats is 336 * delivered - this skips session started at end of (b) 337 * b) consume stat update events until another one with pdev stats is 338 * delivered which is treated as end-of-data and is itself discarded 339 */ 340 341 if (ar->debug.fw_stats_done) { 342 ath10k_warn(ar, "received unsolicited stats update event\n"); 343 goto free; 344 } 345 346 num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers); 347 num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs); 348 is_start = (list_empty(&ar->debug.fw_stats.pdevs) && 349 !list_empty(&stats.pdevs)); 350 is_end = (!list_empty(&ar->debug.fw_stats.pdevs) && 351 !list_empty(&stats.pdevs)); 352 353 if (is_start) 354 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs); 355 356 if (is_end) 357 ar->debug.fw_stats_done = true; 358 359 is_started = !list_empty(&ar->debug.fw_stats.pdevs); 360 361 if (is_started && !is_end) { 362 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) { 363 /* Although this is unlikely impose a sane limit to 364 * prevent firmware from DoS-ing the host. 365 */ 366 ath10k_warn(ar, "dropping fw peer stats\n"); 367 goto free; 368 } 369 370 if (num_vdevs >= BITS_PER_LONG) { 371 ath10k_warn(ar, "dropping fw vdev stats\n"); 372 goto free; 373 } 374 375 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers); 376 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs); 377 } 378 379 complete(&ar->debug.fw_stats_complete); 380 381 free: 382 /* In some cases lists have been spliced and cleared. Free up 383 * resources if that is not the case. 384 */ 385 ath10k_debug_fw_stats_pdevs_free(&stats.pdevs); 386 ath10k_debug_fw_stats_vdevs_free(&stats.vdevs); 387 ath10k_debug_fw_stats_peers_free(&stats.peers); 388 389 spin_unlock_bh(&ar->data_lock); 390 } 391 392 static int ath10k_debug_fw_stats_request(struct ath10k *ar) 393 { 394 unsigned long timeout, time_left; 395 int ret; 396 397 lockdep_assert_held(&ar->conf_mutex); 398 399 timeout = jiffies + msecs_to_jiffies(1 * HZ); 400 401 ath10k_debug_fw_stats_reset(ar); 402 403 for (;;) { 404 if (time_after(jiffies, timeout)) 405 return -ETIMEDOUT; 406 407 reinit_completion(&ar->debug.fw_stats_complete); 408 409 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask); 410 if (ret) { 411 ath10k_warn(ar, "could not request stats (%d)\n", ret); 412 return ret; 413 } 414 415 time_left = 416 wait_for_completion_timeout(&ar->debug.fw_stats_complete, 417 1 * HZ); 418 if (!time_left) 419 return -ETIMEDOUT; 420 421 spin_lock_bh(&ar->data_lock); 422 if (ar->debug.fw_stats_done) { 423 spin_unlock_bh(&ar->data_lock); 424 break; 425 } 426 spin_unlock_bh(&ar->data_lock); 427 } 428 429 return 0; 430 } 431 432 /* FIXME: How to calculate the buffer size sanely? */ 433 #define ATH10K_FW_STATS_BUF_SIZE (1024*1024) 434 435 static void ath10k_fw_stats_fill(struct ath10k *ar, 436 struct ath10k_fw_stats *fw_stats, 437 char *buf) 438 { 439 unsigned int len = 0; 440 unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE; 441 const struct ath10k_fw_stats_pdev *pdev; 442 const struct ath10k_fw_stats_vdev *vdev; 443 const struct ath10k_fw_stats_peer *peer; 444 size_t num_peers; 445 size_t num_vdevs; 446 int i; 447 448 spin_lock_bh(&ar->data_lock); 449 450 pdev = list_first_entry_or_null(&fw_stats->pdevs, 451 struct ath10k_fw_stats_pdev, list); 452 if (!pdev) { 453 ath10k_warn(ar, "failed to get pdev stats\n"); 454 goto unlock; 455 } 456 457 num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers); 458 num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs); 459 460 len += scnprintf(buf + len, buf_len - len, "\n"); 461 len += scnprintf(buf + len, buf_len - len, "%30s\n", 462 "ath10k PDEV stats"); 463 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 464 "================="); 465 466 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 467 "Channel noise floor", pdev->ch_noise_floor); 468 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 469 "Channel TX power", pdev->chan_tx_power); 470 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 471 "TX frame count", pdev->tx_frame_count); 472 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 473 "RX frame count", pdev->rx_frame_count); 474 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 475 "RX clear count", pdev->rx_clear_count); 476 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 477 "Cycle count", pdev->cycle_count); 478 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 479 "PHY error count", pdev->phy_err_count); 480 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 481 "RTS bad count", pdev->rts_bad); 482 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 483 "RTS good count", pdev->rts_good); 484 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 485 "FCS bad count", pdev->fcs_bad); 486 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 487 "No beacon count", pdev->no_beacons); 488 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n", 489 "MIB int count", pdev->mib_int_count); 490 491 len += scnprintf(buf + len, buf_len - len, "\n"); 492 len += scnprintf(buf + len, buf_len - len, "%30s\n", 493 "ath10k PDEV TX stats"); 494 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 495 "================="); 496 497 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 498 "HTT cookies queued", pdev->comp_queued); 499 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 500 "HTT cookies disp.", pdev->comp_delivered); 501 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 502 "MSDU queued", pdev->msdu_enqued); 503 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 504 "MPDU queued", pdev->mpdu_enqued); 505 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 506 "MSDUs dropped", pdev->wmm_drop); 507 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 508 "Local enqued", pdev->local_enqued); 509 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 510 "Local freed", pdev->local_freed); 511 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 512 "HW queued", pdev->hw_queued); 513 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 514 "PPDUs reaped", pdev->hw_reaped); 515 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 516 "Num underruns", pdev->underrun); 517 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 518 "PPDUs cleaned", pdev->tx_abort); 519 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 520 "MPDUs requed", pdev->mpdus_requed); 521 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 522 "Excessive retries", pdev->tx_ko); 523 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 524 "HW rate", pdev->data_rc); 525 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 526 "Sched self tiggers", pdev->self_triggers); 527 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 528 "Dropped due to SW retries", 529 pdev->sw_retry_failure); 530 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 531 "Illegal rate phy errors", 532 pdev->illgl_rate_phy_err); 533 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 534 "Pdev continous xretry", pdev->pdev_cont_xretry); 535 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 536 "TX timeout", pdev->pdev_tx_timeout); 537 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 538 "PDEV resets", pdev->pdev_resets); 539 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 540 "PHY underrun", pdev->phy_underrun); 541 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 542 "MPDU is more than txop limit", pdev->txop_ovf); 543 544 len += scnprintf(buf + len, buf_len - len, "\n"); 545 len += scnprintf(buf + len, buf_len - len, "%30s\n", 546 "ath10k PDEV RX stats"); 547 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 548 "================="); 549 550 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 551 "Mid PPDU route change", 552 pdev->mid_ppdu_route_change); 553 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 554 "Tot. number of statuses", pdev->status_rcvd); 555 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 556 "Extra frags on rings 0", pdev->r0_frags); 557 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 558 "Extra frags on rings 1", pdev->r1_frags); 559 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 560 "Extra frags on rings 2", pdev->r2_frags); 561 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 562 "Extra frags on rings 3", pdev->r3_frags); 563 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 564 "MSDUs delivered to HTT", pdev->htt_msdus); 565 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 566 "MPDUs delivered to HTT", pdev->htt_mpdus); 567 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 568 "MSDUs delivered to stack", pdev->loc_msdus); 569 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 570 "MPDUs delivered to stack", pdev->loc_mpdus); 571 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 572 "Oversized AMSUs", pdev->oversize_amsdu); 573 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 574 "PHY errors", pdev->phy_errs); 575 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 576 "PHY errors drops", pdev->phy_err_drop); 577 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n", 578 "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs); 579 580 len += scnprintf(buf + len, buf_len - len, "\n"); 581 len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", 582 "ath10k VDEV stats", num_vdevs); 583 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 584 "================="); 585 586 list_for_each_entry(vdev, &fw_stats->vdevs, list) { 587 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 588 "vdev id", vdev->vdev_id); 589 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 590 "beacon snr", vdev->beacon_snr); 591 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 592 "data snr", vdev->data_snr); 593 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 594 "num rx frames", vdev->num_rx_frames); 595 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 596 "num rts fail", vdev->num_rts_fail); 597 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 598 "num rts success", vdev->num_rts_success); 599 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 600 "num rx err", vdev->num_rx_err); 601 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 602 "num rx discard", vdev->num_rx_discard); 603 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 604 "num tx not acked", vdev->num_tx_not_acked); 605 606 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++) 607 len += scnprintf(buf + len, buf_len - len, 608 "%25s [%02d] %u\n", 609 "num tx frames", i, 610 vdev->num_tx_frames[i]); 611 612 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++) 613 len += scnprintf(buf + len, buf_len - len, 614 "%25s [%02d] %u\n", 615 "num tx frames retries", i, 616 vdev->num_tx_frames_retries[i]); 617 618 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++) 619 len += scnprintf(buf + len, buf_len - len, 620 "%25s [%02d] %u\n", 621 "num tx frames failures", i, 622 vdev->num_tx_frames_failures[i]); 623 624 for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++) 625 len += scnprintf(buf + len, buf_len - len, 626 "%25s [%02d] 0x%08x\n", 627 "tx rate history", i, 628 vdev->tx_rate_history[i]); 629 630 for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++) 631 len += scnprintf(buf + len, buf_len - len, 632 "%25s [%02d] %u\n", 633 "beacon rssi history", i, 634 vdev->beacon_rssi_history[i]); 635 636 len += scnprintf(buf + len, buf_len - len, "\n"); 637 } 638 639 len += scnprintf(buf + len, buf_len - len, "\n"); 640 len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n", 641 "ath10k PEER stats", num_peers); 642 len += scnprintf(buf + len, buf_len - len, "%30s\n\n", 643 "================="); 644 645 list_for_each_entry(peer, &fw_stats->peers, list) { 646 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n", 647 "Peer MAC address", peer->peer_macaddr); 648 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 649 "Peer RSSI", peer->peer_rssi); 650 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 651 "Peer TX rate", peer->peer_tx_rate); 652 len += scnprintf(buf + len, buf_len - len, "%30s %u\n", 653 "Peer RX rate", peer->peer_rx_rate); 654 len += scnprintf(buf + len, buf_len - len, "\n"); 655 } 656 657 unlock: 658 spin_unlock_bh(&ar->data_lock); 659 660 if (len >= buf_len) 661 buf[len - 1] = 0; 662 else 663 buf[len] = 0; 664 } 665 666 static int ath10k_fw_stats_open(struct inode *inode, struct file *file) 667 { 668 struct ath10k *ar = inode->i_private; 669 void *buf = NULL; 670 int ret; 671 672 mutex_lock(&ar->conf_mutex); 673 674 if (ar->state != ATH10K_STATE_ON) { 675 ret = -ENETDOWN; 676 goto err_unlock; 677 } 678 679 buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE); 680 if (!buf) { 681 ret = -ENOMEM; 682 goto err_unlock; 683 } 684 685 ret = ath10k_debug_fw_stats_request(ar); 686 if (ret) { 687 ath10k_warn(ar, "failed to request fw stats: %d\n", ret); 688 goto err_free; 689 } 690 691 ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf); 692 file->private_data = buf; 693 694 mutex_unlock(&ar->conf_mutex); 695 return 0; 696 697 err_free: 698 vfree(buf); 699 700 err_unlock: 701 mutex_unlock(&ar->conf_mutex); 702 return ret; 703 } 704 705 static int ath10k_fw_stats_release(struct inode *inode, struct file *file) 706 { 707 vfree(file->private_data); 708 709 return 0; 710 } 711 712 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf, 713 size_t count, loff_t *ppos) 714 { 715 const char *buf = file->private_data; 716 unsigned int len = strlen(buf); 717 718 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 719 } 720 721 static const struct file_operations fops_fw_stats = { 722 .open = ath10k_fw_stats_open, 723 .release = ath10k_fw_stats_release, 724 .read = ath10k_fw_stats_read, 725 .owner = THIS_MODULE, 726 .llseek = default_llseek, 727 }; 728 729 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file, 730 char __user *user_buf, 731 size_t count, loff_t *ppos) 732 { 733 struct ath10k *ar = file->private_data; 734 int ret, len, buf_len; 735 char *buf; 736 737 buf_len = 500; 738 buf = kmalloc(buf_len, GFP_KERNEL); 739 if (!buf) 740 return -ENOMEM; 741 742 spin_lock_bh(&ar->data_lock); 743 744 len = 0; 745 len += scnprintf(buf + len, buf_len - len, 746 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter); 747 len += scnprintf(buf + len, buf_len - len, 748 "fw_warm_reset_counter\t\t%d\n", 749 ar->stats.fw_warm_reset_counter); 750 len += scnprintf(buf + len, buf_len - len, 751 "fw_cold_reset_counter\t\t%d\n", 752 ar->stats.fw_cold_reset_counter); 753 754 spin_unlock_bh(&ar->data_lock); 755 756 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 757 758 kfree(buf); 759 760 return ret; 761 } 762 763 static const struct file_operations fops_fw_reset_stats = { 764 .open = simple_open, 765 .read = ath10k_debug_fw_reset_stats_read, 766 .owner = THIS_MODULE, 767 .llseek = default_llseek, 768 }; 769 770 /* This is a clean assert crash in firmware. */ 771 static int ath10k_debug_fw_assert(struct ath10k *ar) 772 { 773 struct wmi_vdev_install_key_cmd *cmd; 774 struct sk_buff *skb; 775 776 skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16); 777 if (!skb) 778 return -ENOMEM; 779 780 cmd = (struct wmi_vdev_install_key_cmd *)skb->data; 781 memset(cmd, 0, sizeof(*cmd)); 782 783 /* big enough number so that firmware asserts */ 784 cmd->vdev_id = __cpu_to_le32(0x7ffe); 785 786 return ath10k_wmi_cmd_send(ar, skb, 787 ar->wmi.cmd->vdev_install_key_cmdid); 788 } 789 790 static ssize_t ath10k_read_simulate_fw_crash(struct file *file, 791 char __user *user_buf, 792 size_t count, loff_t *ppos) 793 { 794 const char buf[] = 795 "To simulate firmware crash write one of the keywords to this file:\n" 796 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n" 797 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n" 798 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n" 799 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n"; 800 801 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 802 } 803 804 /* Simulate firmware crash: 805 * 'soft': Call wmi command causing firmware hang. This firmware hang is 806 * recoverable by warm firmware reset. 807 * 'hard': Force firmware crash by setting any vdev parameter for not allowed 808 * vdev id. This is hard firmware crash because it is recoverable only by cold 809 * firmware reset. 810 */ 811 static ssize_t ath10k_write_simulate_fw_crash(struct file *file, 812 const char __user *user_buf, 813 size_t count, loff_t *ppos) 814 { 815 struct ath10k *ar = file->private_data; 816 char buf[32]; 817 int ret; 818 819 mutex_lock(&ar->conf_mutex); 820 821 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 822 823 /* make sure that buf is null terminated */ 824 buf[sizeof(buf) - 1] = 0; 825 826 if (ar->state != ATH10K_STATE_ON && 827 ar->state != ATH10K_STATE_RESTARTED) { 828 ret = -ENETDOWN; 829 goto exit; 830 } 831 832 /* drop the possible '\n' from the end */ 833 if (buf[count - 1] == '\n') { 834 buf[count - 1] = 0; 835 count--; 836 } 837 838 if (!strcmp(buf, "soft")) { 839 ath10k_info(ar, "simulating soft firmware crash\n"); 840 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0); 841 } else if (!strcmp(buf, "hard")) { 842 ath10k_info(ar, "simulating hard firmware crash\n"); 843 /* 0x7fff is vdev id, and it is always out of range for all 844 * firmware variants in order to force a firmware crash. 845 */ 846 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff, 847 ar->wmi.vdev_param->rts_threshold, 848 0); 849 } else if (!strcmp(buf, "assert")) { 850 ath10k_info(ar, "simulating firmware assert crash\n"); 851 ret = ath10k_debug_fw_assert(ar); 852 } else if (!strcmp(buf, "hw-restart")) { 853 ath10k_info(ar, "user requested hw restart\n"); 854 queue_work(ar->workqueue, &ar->restart_work); 855 ret = 0; 856 } else { 857 ret = -EINVAL; 858 goto exit; 859 } 860 861 if (ret) { 862 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret); 863 goto exit; 864 } 865 866 ret = count; 867 868 exit: 869 mutex_unlock(&ar->conf_mutex); 870 return ret; 871 } 872 873 static const struct file_operations fops_simulate_fw_crash = { 874 .read = ath10k_read_simulate_fw_crash, 875 .write = ath10k_write_simulate_fw_crash, 876 .open = simple_open, 877 .owner = THIS_MODULE, 878 .llseek = default_llseek, 879 }; 880 881 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf, 882 size_t count, loff_t *ppos) 883 { 884 struct ath10k *ar = file->private_data; 885 unsigned int len; 886 char buf[50]; 887 888 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id); 889 890 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 891 } 892 893 static const struct file_operations fops_chip_id = { 894 .read = ath10k_read_chip_id, 895 .open = simple_open, 896 .owner = THIS_MODULE, 897 .llseek = default_llseek, 898 }; 899 900 struct ath10k_fw_crash_data * 901 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar) 902 { 903 struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; 904 905 lockdep_assert_held(&ar->data_lock); 906 907 crash_data->crashed_since_read = true; 908 uuid_le_gen(&crash_data->uuid); 909 getnstimeofday(&crash_data->timestamp); 910 911 return crash_data; 912 } 913 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data); 914 915 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar) 916 { 917 struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data; 918 struct ath10k_dump_file_data *dump_data; 919 struct ath10k_tlv_dump_data *dump_tlv; 920 int hdr_len = sizeof(*dump_data); 921 unsigned int len, sofar = 0; 922 unsigned char *buf; 923 924 len = hdr_len; 925 len += sizeof(*dump_tlv) + sizeof(crash_data->registers); 926 927 sofar += hdr_len; 928 929 /* This is going to get big when we start dumping FW RAM and such, 930 * so go ahead and use vmalloc. 931 */ 932 buf = vzalloc(len); 933 if (!buf) 934 return NULL; 935 936 spin_lock_bh(&ar->data_lock); 937 938 if (!crash_data->crashed_since_read) { 939 spin_unlock_bh(&ar->data_lock); 940 vfree(buf); 941 return NULL; 942 } 943 944 dump_data = (struct ath10k_dump_file_data *)(buf); 945 strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP", 946 sizeof(dump_data->df_magic)); 947 dump_data->len = cpu_to_le32(len); 948 949 dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION); 950 951 memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid)); 952 dump_data->chip_id = cpu_to_le32(ar->chip_id); 953 dump_data->bus_type = cpu_to_le32(0); 954 dump_data->target_version = cpu_to_le32(ar->target_version); 955 dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major); 956 dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor); 957 dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release); 958 dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build); 959 dump_data->phy_capability = cpu_to_le32(ar->phy_capability); 960 dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power); 961 dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power); 962 dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info); 963 dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info); 964 dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains); 965 966 strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version, 967 sizeof(dump_data->fw_ver)); 968 969 dump_data->kernel_ver_code = 0; 970 strlcpy(dump_data->kernel_ver, init_utsname()->release, 971 sizeof(dump_data->kernel_ver)); 972 973 dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec); 974 dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec); 975 976 /* Gather crash-dump */ 977 dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar); 978 dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS); 979 dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers)); 980 memcpy(dump_tlv->tlv_data, &crash_data->registers, 981 sizeof(crash_data->registers)); 982 sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers); 983 984 ar->debug.fw_crash_data->crashed_since_read = false; 985 986 spin_unlock_bh(&ar->data_lock); 987 988 return dump_data; 989 } 990 991 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file) 992 { 993 struct ath10k *ar = inode->i_private; 994 struct ath10k_dump_file_data *dump; 995 996 dump = ath10k_build_dump_file(ar); 997 if (!dump) 998 return -ENODATA; 999 1000 file->private_data = dump; 1001 1002 return 0; 1003 } 1004 1005 static ssize_t ath10k_fw_crash_dump_read(struct file *file, 1006 char __user *user_buf, 1007 size_t count, loff_t *ppos) 1008 { 1009 struct ath10k_dump_file_data *dump_file = file->private_data; 1010 1011 return simple_read_from_buffer(user_buf, count, ppos, 1012 dump_file, 1013 le32_to_cpu(dump_file->len)); 1014 } 1015 1016 static int ath10k_fw_crash_dump_release(struct inode *inode, 1017 struct file *file) 1018 { 1019 vfree(file->private_data); 1020 1021 return 0; 1022 } 1023 1024 static const struct file_operations fops_fw_crash_dump = { 1025 .open = ath10k_fw_crash_dump_open, 1026 .read = ath10k_fw_crash_dump_read, 1027 .release = ath10k_fw_crash_dump_release, 1028 .owner = THIS_MODULE, 1029 .llseek = default_llseek, 1030 }; 1031 1032 static ssize_t ath10k_reg_addr_read(struct file *file, 1033 char __user *user_buf, 1034 size_t count, loff_t *ppos) 1035 { 1036 struct ath10k *ar = file->private_data; 1037 u8 buf[32]; 1038 unsigned int len = 0; 1039 u32 reg_addr; 1040 1041 mutex_lock(&ar->conf_mutex); 1042 reg_addr = ar->debug.reg_addr; 1043 mutex_unlock(&ar->conf_mutex); 1044 1045 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr); 1046 1047 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1048 } 1049 1050 static ssize_t ath10k_reg_addr_write(struct file *file, 1051 const char __user *user_buf, 1052 size_t count, loff_t *ppos) 1053 { 1054 struct ath10k *ar = file->private_data; 1055 u32 reg_addr; 1056 int ret; 1057 1058 ret = kstrtou32_from_user(user_buf, count, 0, ®_addr); 1059 if (ret) 1060 return ret; 1061 1062 if (!IS_ALIGNED(reg_addr, 4)) 1063 return -EFAULT; 1064 1065 mutex_lock(&ar->conf_mutex); 1066 ar->debug.reg_addr = reg_addr; 1067 mutex_unlock(&ar->conf_mutex); 1068 1069 return count; 1070 } 1071 1072 static const struct file_operations fops_reg_addr = { 1073 .read = ath10k_reg_addr_read, 1074 .write = ath10k_reg_addr_write, 1075 .open = simple_open, 1076 .owner = THIS_MODULE, 1077 .llseek = default_llseek, 1078 }; 1079 1080 static ssize_t ath10k_reg_value_read(struct file *file, 1081 char __user *user_buf, 1082 size_t count, loff_t *ppos) 1083 { 1084 struct ath10k *ar = file->private_data; 1085 u8 buf[48]; 1086 unsigned int len; 1087 u32 reg_addr, reg_val; 1088 int ret; 1089 1090 mutex_lock(&ar->conf_mutex); 1091 1092 if (ar->state != ATH10K_STATE_ON && 1093 ar->state != ATH10K_STATE_UTF) { 1094 ret = -ENETDOWN; 1095 goto exit; 1096 } 1097 1098 reg_addr = ar->debug.reg_addr; 1099 1100 reg_val = ath10k_hif_read32(ar, reg_addr); 1101 len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val); 1102 1103 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1104 1105 exit: 1106 mutex_unlock(&ar->conf_mutex); 1107 1108 return ret; 1109 } 1110 1111 static ssize_t ath10k_reg_value_write(struct file *file, 1112 const char __user *user_buf, 1113 size_t count, loff_t *ppos) 1114 { 1115 struct ath10k *ar = file->private_data; 1116 u32 reg_addr, reg_val; 1117 int ret; 1118 1119 mutex_lock(&ar->conf_mutex); 1120 1121 if (ar->state != ATH10K_STATE_ON && 1122 ar->state != ATH10K_STATE_UTF) { 1123 ret = -ENETDOWN; 1124 goto exit; 1125 } 1126 1127 reg_addr = ar->debug.reg_addr; 1128 1129 ret = kstrtou32_from_user(user_buf, count, 0, ®_val); 1130 if (ret) 1131 goto exit; 1132 1133 ath10k_hif_write32(ar, reg_addr, reg_val); 1134 1135 ret = count; 1136 1137 exit: 1138 mutex_unlock(&ar->conf_mutex); 1139 1140 return ret; 1141 } 1142 1143 static const struct file_operations fops_reg_value = { 1144 .read = ath10k_reg_value_read, 1145 .write = ath10k_reg_value_write, 1146 .open = simple_open, 1147 .owner = THIS_MODULE, 1148 .llseek = default_llseek, 1149 }; 1150 1151 static ssize_t ath10k_mem_value_read(struct file *file, 1152 char __user *user_buf, 1153 size_t count, loff_t *ppos) 1154 { 1155 struct ath10k *ar = file->private_data; 1156 u8 *buf; 1157 int ret; 1158 1159 if (*ppos < 0) 1160 return -EINVAL; 1161 1162 if (!count) 1163 return 0; 1164 1165 mutex_lock(&ar->conf_mutex); 1166 1167 buf = vmalloc(count); 1168 if (!buf) { 1169 ret = -ENOMEM; 1170 goto exit; 1171 } 1172 1173 if (ar->state != ATH10K_STATE_ON && 1174 ar->state != ATH10K_STATE_UTF) { 1175 ret = -ENETDOWN; 1176 goto exit; 1177 } 1178 1179 ret = ath10k_hif_diag_read(ar, *ppos, buf, count); 1180 if (ret) { 1181 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n", 1182 (u32)(*ppos), ret); 1183 goto exit; 1184 } 1185 1186 ret = copy_to_user(user_buf, buf, count); 1187 if (ret) { 1188 ret = -EFAULT; 1189 goto exit; 1190 } 1191 1192 count -= ret; 1193 *ppos += count; 1194 ret = count; 1195 1196 exit: 1197 vfree(buf); 1198 mutex_unlock(&ar->conf_mutex); 1199 1200 return ret; 1201 } 1202 1203 static ssize_t ath10k_mem_value_write(struct file *file, 1204 const char __user *user_buf, 1205 size_t count, loff_t *ppos) 1206 { 1207 struct ath10k *ar = file->private_data; 1208 u8 *buf; 1209 int ret; 1210 1211 if (*ppos < 0) 1212 return -EINVAL; 1213 1214 if (!count) 1215 return 0; 1216 1217 mutex_lock(&ar->conf_mutex); 1218 1219 buf = vmalloc(count); 1220 if (!buf) { 1221 ret = -ENOMEM; 1222 goto exit; 1223 } 1224 1225 if (ar->state != ATH10K_STATE_ON && 1226 ar->state != ATH10K_STATE_UTF) { 1227 ret = -ENETDOWN; 1228 goto exit; 1229 } 1230 1231 ret = copy_from_user(buf, user_buf, count); 1232 if (ret) { 1233 ret = -EFAULT; 1234 goto exit; 1235 } 1236 1237 ret = ath10k_hif_diag_write(ar, *ppos, buf, count); 1238 if (ret) { 1239 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n", 1240 (u32)(*ppos), ret); 1241 goto exit; 1242 } 1243 1244 *ppos += count; 1245 ret = count; 1246 1247 exit: 1248 vfree(buf); 1249 mutex_unlock(&ar->conf_mutex); 1250 1251 return ret; 1252 } 1253 1254 static const struct file_operations fops_mem_value = { 1255 .read = ath10k_mem_value_read, 1256 .write = ath10k_mem_value_write, 1257 .open = simple_open, 1258 .owner = THIS_MODULE, 1259 .llseek = default_llseek, 1260 }; 1261 1262 static int ath10k_debug_htt_stats_req(struct ath10k *ar) 1263 { 1264 u64 cookie; 1265 int ret; 1266 1267 lockdep_assert_held(&ar->conf_mutex); 1268 1269 if (ar->debug.htt_stats_mask == 0) 1270 /* htt stats are disabled */ 1271 return 0; 1272 1273 if (ar->state != ATH10K_STATE_ON) 1274 return 0; 1275 1276 cookie = get_jiffies_64(); 1277 1278 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask, 1279 cookie); 1280 if (ret) { 1281 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret); 1282 return ret; 1283 } 1284 1285 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork, 1286 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL)); 1287 1288 return 0; 1289 } 1290 1291 static void ath10k_debug_htt_stats_dwork(struct work_struct *work) 1292 { 1293 struct ath10k *ar = container_of(work, struct ath10k, 1294 debug.htt_stats_dwork.work); 1295 1296 mutex_lock(&ar->conf_mutex); 1297 1298 ath10k_debug_htt_stats_req(ar); 1299 1300 mutex_unlock(&ar->conf_mutex); 1301 } 1302 1303 static ssize_t ath10k_read_htt_stats_mask(struct file *file, 1304 char __user *user_buf, 1305 size_t count, loff_t *ppos) 1306 { 1307 struct ath10k *ar = file->private_data; 1308 char buf[32]; 1309 unsigned int len; 1310 1311 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask); 1312 1313 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1314 } 1315 1316 static ssize_t ath10k_write_htt_stats_mask(struct file *file, 1317 const char __user *user_buf, 1318 size_t count, loff_t *ppos) 1319 { 1320 struct ath10k *ar = file->private_data; 1321 unsigned long mask; 1322 int ret; 1323 1324 ret = kstrtoul_from_user(user_buf, count, 0, &mask); 1325 if (ret) 1326 return ret; 1327 1328 /* max 8 bit masks (for now) */ 1329 if (mask > 0xff) 1330 return -E2BIG; 1331 1332 mutex_lock(&ar->conf_mutex); 1333 1334 ar->debug.htt_stats_mask = mask; 1335 1336 ret = ath10k_debug_htt_stats_req(ar); 1337 if (ret) 1338 goto out; 1339 1340 ret = count; 1341 1342 out: 1343 mutex_unlock(&ar->conf_mutex); 1344 1345 return ret; 1346 } 1347 1348 static const struct file_operations fops_htt_stats_mask = { 1349 .read = ath10k_read_htt_stats_mask, 1350 .write = ath10k_write_htt_stats_mask, 1351 .open = simple_open, 1352 .owner = THIS_MODULE, 1353 .llseek = default_llseek, 1354 }; 1355 1356 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file, 1357 char __user *user_buf, 1358 size_t count, loff_t *ppos) 1359 { 1360 struct ath10k *ar = file->private_data; 1361 char buf[64]; 1362 u8 amsdu = 3, ampdu = 64; 1363 unsigned int len; 1364 1365 mutex_lock(&ar->conf_mutex); 1366 1367 amsdu = ar->htt.max_num_amsdu; 1368 ampdu = ar->htt.max_num_ampdu; 1369 mutex_unlock(&ar->conf_mutex); 1370 1371 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu); 1372 1373 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1374 } 1375 1376 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file, 1377 const char __user *user_buf, 1378 size_t count, loff_t *ppos) 1379 { 1380 struct ath10k *ar = file->private_data; 1381 int res; 1382 char buf[64]; 1383 unsigned int amsdu, ampdu; 1384 1385 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 1386 1387 /* make sure that buf is null terminated */ 1388 buf[sizeof(buf) - 1] = 0; 1389 1390 res = sscanf(buf, "%u %u", &amsdu, &du); 1391 1392 if (res != 2) 1393 return -EINVAL; 1394 1395 mutex_lock(&ar->conf_mutex); 1396 1397 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu); 1398 if (res) 1399 goto out; 1400 1401 res = count; 1402 ar->htt.max_num_amsdu = amsdu; 1403 ar->htt.max_num_ampdu = ampdu; 1404 1405 out: 1406 mutex_unlock(&ar->conf_mutex); 1407 return res; 1408 } 1409 1410 static const struct file_operations fops_htt_max_amsdu_ampdu = { 1411 .read = ath10k_read_htt_max_amsdu_ampdu, 1412 .write = ath10k_write_htt_max_amsdu_ampdu, 1413 .open = simple_open, 1414 .owner = THIS_MODULE, 1415 .llseek = default_llseek, 1416 }; 1417 1418 static ssize_t ath10k_read_fw_dbglog(struct file *file, 1419 char __user *user_buf, 1420 size_t count, loff_t *ppos) 1421 { 1422 struct ath10k *ar = file->private_data; 1423 unsigned int len; 1424 char buf[64]; 1425 1426 len = scnprintf(buf, sizeof(buf), "0x%08x %u\n", 1427 ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level); 1428 1429 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1430 } 1431 1432 static ssize_t ath10k_write_fw_dbglog(struct file *file, 1433 const char __user *user_buf, 1434 size_t count, loff_t *ppos) 1435 { 1436 struct ath10k *ar = file->private_data; 1437 int ret; 1438 char buf[64]; 1439 unsigned int log_level, mask; 1440 1441 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 1442 1443 /* make sure that buf is null terminated */ 1444 buf[sizeof(buf) - 1] = 0; 1445 1446 ret = sscanf(buf, "%x %u", &mask, &log_level); 1447 1448 if (!ret) 1449 return -EINVAL; 1450 1451 if (ret == 1) 1452 /* default if user did not specify */ 1453 log_level = ATH10K_DBGLOG_LEVEL_WARN; 1454 1455 mutex_lock(&ar->conf_mutex); 1456 1457 ar->debug.fw_dbglog_mask = mask; 1458 ar->debug.fw_dbglog_level = log_level; 1459 1460 if (ar->state == ATH10K_STATE_ON) { 1461 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1462 ar->debug.fw_dbglog_level); 1463 if (ret) { 1464 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n", 1465 ret); 1466 goto exit; 1467 } 1468 } 1469 1470 ret = count; 1471 1472 exit: 1473 mutex_unlock(&ar->conf_mutex); 1474 1475 return ret; 1476 } 1477 1478 /* TODO: Would be nice to always support ethtool stats, would need to 1479 * move the stats storage out of ath10k_debug, or always have ath10k_debug 1480 * struct available.. 1481 */ 1482 1483 /* This generally cooresponds to the debugfs fw_stats file */ 1484 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = { 1485 "tx_pkts_nic", 1486 "tx_bytes_nic", 1487 "rx_pkts_nic", 1488 "rx_bytes_nic", 1489 "d_noise_floor", 1490 "d_cycle_count", 1491 "d_phy_error", 1492 "d_rts_bad", 1493 "d_rts_good", 1494 "d_tx_power", /* in .5 dbM I think */ 1495 "d_rx_crc_err", /* fcs_bad */ 1496 "d_no_beacon", 1497 "d_tx_mpdus_queued", 1498 "d_tx_msdu_queued", 1499 "d_tx_msdu_dropped", 1500 "d_local_enqued", 1501 "d_local_freed", 1502 "d_tx_ppdu_hw_queued", 1503 "d_tx_ppdu_reaped", 1504 "d_tx_fifo_underrun", 1505 "d_tx_ppdu_abort", 1506 "d_tx_mpdu_requed", 1507 "d_tx_excessive_retries", 1508 "d_tx_hw_rate", 1509 "d_tx_dropped_sw_retries", 1510 "d_tx_illegal_rate", 1511 "d_tx_continuous_xretries", 1512 "d_tx_timeout", 1513 "d_tx_mpdu_txop_limit", 1514 "d_pdev_resets", 1515 "d_rx_mid_ppdu_route_change", 1516 "d_rx_status", 1517 "d_rx_extra_frags_ring0", 1518 "d_rx_extra_frags_ring1", 1519 "d_rx_extra_frags_ring2", 1520 "d_rx_extra_frags_ring3", 1521 "d_rx_msdu_htt", 1522 "d_rx_mpdu_htt", 1523 "d_rx_msdu_stack", 1524 "d_rx_mpdu_stack", 1525 "d_rx_phy_err", 1526 "d_rx_phy_err_drops", 1527 "d_rx_mpdu_errors", /* FCS, MIC, ENC */ 1528 "d_fw_crash_count", 1529 "d_fw_warm_reset_count", 1530 "d_fw_cold_reset_count", 1531 }; 1532 1533 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats) 1534 1535 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, 1536 struct ieee80211_vif *vif, 1537 u32 sset, u8 *data) 1538 { 1539 if (sset == ETH_SS_STATS) 1540 memcpy(data, *ath10k_gstrings_stats, 1541 sizeof(ath10k_gstrings_stats)); 1542 } 1543 1544 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw, 1545 struct ieee80211_vif *vif, int sset) 1546 { 1547 if (sset == ETH_SS_STATS) 1548 return ATH10K_SSTATS_LEN; 1549 1550 return 0; 1551 } 1552 1553 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw, 1554 struct ieee80211_vif *vif, 1555 struct ethtool_stats *stats, u64 *data) 1556 { 1557 struct ath10k *ar = hw->priv; 1558 static const struct ath10k_fw_stats_pdev zero_stats = {}; 1559 const struct ath10k_fw_stats_pdev *pdev_stats; 1560 int i = 0, ret; 1561 1562 mutex_lock(&ar->conf_mutex); 1563 1564 if (ar->state == ATH10K_STATE_ON) { 1565 ret = ath10k_debug_fw_stats_request(ar); 1566 if (ret) { 1567 /* just print a warning and try to use older results */ 1568 ath10k_warn(ar, 1569 "failed to get fw stats for ethtool: %d\n", 1570 ret); 1571 } 1572 } 1573 1574 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs, 1575 struct ath10k_fw_stats_pdev, 1576 list); 1577 if (!pdev_stats) { 1578 /* no results available so just return zeroes */ 1579 pdev_stats = &zero_stats; 1580 } 1581 1582 spin_lock_bh(&ar->data_lock); 1583 1584 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */ 1585 data[i++] = 0; /* tx bytes */ 1586 data[i++] = pdev_stats->htt_mpdus; 1587 data[i++] = 0; /* rx bytes */ 1588 data[i++] = pdev_stats->ch_noise_floor; 1589 data[i++] = pdev_stats->cycle_count; 1590 data[i++] = pdev_stats->phy_err_count; 1591 data[i++] = pdev_stats->rts_bad; 1592 data[i++] = pdev_stats->rts_good; 1593 data[i++] = pdev_stats->chan_tx_power; 1594 data[i++] = pdev_stats->fcs_bad; 1595 data[i++] = pdev_stats->no_beacons; 1596 data[i++] = pdev_stats->mpdu_enqued; 1597 data[i++] = pdev_stats->msdu_enqued; 1598 data[i++] = pdev_stats->wmm_drop; 1599 data[i++] = pdev_stats->local_enqued; 1600 data[i++] = pdev_stats->local_freed; 1601 data[i++] = pdev_stats->hw_queued; 1602 data[i++] = pdev_stats->hw_reaped; 1603 data[i++] = pdev_stats->underrun; 1604 data[i++] = pdev_stats->tx_abort; 1605 data[i++] = pdev_stats->mpdus_requed; 1606 data[i++] = pdev_stats->tx_ko; 1607 data[i++] = pdev_stats->data_rc; 1608 data[i++] = pdev_stats->sw_retry_failure; 1609 data[i++] = pdev_stats->illgl_rate_phy_err; 1610 data[i++] = pdev_stats->pdev_cont_xretry; 1611 data[i++] = pdev_stats->pdev_tx_timeout; 1612 data[i++] = pdev_stats->txop_ovf; 1613 data[i++] = pdev_stats->pdev_resets; 1614 data[i++] = pdev_stats->mid_ppdu_route_change; 1615 data[i++] = pdev_stats->status_rcvd; 1616 data[i++] = pdev_stats->r0_frags; 1617 data[i++] = pdev_stats->r1_frags; 1618 data[i++] = pdev_stats->r2_frags; 1619 data[i++] = pdev_stats->r3_frags; 1620 data[i++] = pdev_stats->htt_msdus; 1621 data[i++] = pdev_stats->htt_mpdus; 1622 data[i++] = pdev_stats->loc_msdus; 1623 data[i++] = pdev_stats->loc_mpdus; 1624 data[i++] = pdev_stats->phy_errs; 1625 data[i++] = pdev_stats->phy_err_drop; 1626 data[i++] = pdev_stats->mpdu_errs; 1627 data[i++] = ar->stats.fw_crash_counter; 1628 data[i++] = ar->stats.fw_warm_reset_counter; 1629 data[i++] = ar->stats.fw_cold_reset_counter; 1630 1631 spin_unlock_bh(&ar->data_lock); 1632 1633 mutex_unlock(&ar->conf_mutex); 1634 1635 WARN_ON(i != ATH10K_SSTATS_LEN); 1636 } 1637 1638 static const struct file_operations fops_fw_dbglog = { 1639 .read = ath10k_read_fw_dbglog, 1640 .write = ath10k_write_fw_dbglog, 1641 .open = simple_open, 1642 .owner = THIS_MODULE, 1643 .llseek = default_llseek, 1644 }; 1645 1646 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file) 1647 { 1648 struct ath10k *ar = inode->i_private; 1649 void *buf; 1650 u32 hi_addr; 1651 __le32 addr; 1652 int ret; 1653 1654 mutex_lock(&ar->conf_mutex); 1655 1656 if (ar->state != ATH10K_STATE_ON && 1657 ar->state != ATH10K_STATE_UTF) { 1658 ret = -ENETDOWN; 1659 goto err; 1660 } 1661 1662 buf = vmalloc(QCA988X_CAL_DATA_LEN); 1663 if (!buf) { 1664 ret = -ENOMEM; 1665 goto err; 1666 } 1667 1668 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); 1669 1670 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); 1671 if (ret) { 1672 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret); 1673 goto err_vfree; 1674 } 1675 1676 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf, 1677 QCA988X_CAL_DATA_LEN); 1678 if (ret) { 1679 ath10k_warn(ar, "failed to read calibration data: %d\n", ret); 1680 goto err_vfree; 1681 } 1682 1683 file->private_data = buf; 1684 1685 mutex_unlock(&ar->conf_mutex); 1686 1687 return 0; 1688 1689 err_vfree: 1690 vfree(buf); 1691 1692 err: 1693 mutex_unlock(&ar->conf_mutex); 1694 1695 return ret; 1696 } 1697 1698 static ssize_t ath10k_debug_cal_data_read(struct file *file, 1699 char __user *user_buf, 1700 size_t count, loff_t *ppos) 1701 { 1702 void *buf = file->private_data; 1703 1704 return simple_read_from_buffer(user_buf, count, ppos, 1705 buf, QCA988X_CAL_DATA_LEN); 1706 } 1707 1708 static int ath10k_debug_cal_data_release(struct inode *inode, 1709 struct file *file) 1710 { 1711 vfree(file->private_data); 1712 1713 return 0; 1714 } 1715 1716 static ssize_t ath10k_write_ani_enable(struct file *file, 1717 const char __user *user_buf, 1718 size_t count, loff_t *ppos) 1719 { 1720 struct ath10k *ar = file->private_data; 1721 int ret; 1722 u8 enable; 1723 1724 if (kstrtou8_from_user(user_buf, count, 0, &enable)) 1725 return -EINVAL; 1726 1727 mutex_lock(&ar->conf_mutex); 1728 1729 if (ar->ani_enabled == enable) { 1730 ret = count; 1731 goto exit; 1732 } 1733 1734 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable, 1735 enable); 1736 if (ret) { 1737 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret); 1738 goto exit; 1739 } 1740 ar->ani_enabled = enable; 1741 1742 ret = count; 1743 1744 exit: 1745 mutex_unlock(&ar->conf_mutex); 1746 1747 return ret; 1748 } 1749 1750 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf, 1751 size_t count, loff_t *ppos) 1752 { 1753 struct ath10k *ar = file->private_data; 1754 int len = 0; 1755 char buf[32]; 1756 1757 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 1758 ar->ani_enabled); 1759 1760 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1761 } 1762 1763 static const struct file_operations fops_ani_enable = { 1764 .read = ath10k_read_ani_enable, 1765 .write = ath10k_write_ani_enable, 1766 .open = simple_open, 1767 .owner = THIS_MODULE, 1768 .llseek = default_llseek, 1769 }; 1770 1771 static const struct file_operations fops_cal_data = { 1772 .open = ath10k_debug_cal_data_open, 1773 .read = ath10k_debug_cal_data_read, 1774 .release = ath10k_debug_cal_data_release, 1775 .owner = THIS_MODULE, 1776 .llseek = default_llseek, 1777 }; 1778 1779 static ssize_t ath10k_read_nf_cal_period(struct file *file, 1780 char __user *user_buf, 1781 size_t count, loff_t *ppos) 1782 { 1783 struct ath10k *ar = file->private_data; 1784 unsigned int len; 1785 char buf[32]; 1786 1787 len = scnprintf(buf, sizeof(buf), "%d\n", 1788 ar->debug.nf_cal_period); 1789 1790 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1791 } 1792 1793 static ssize_t ath10k_write_nf_cal_period(struct file *file, 1794 const char __user *user_buf, 1795 size_t count, loff_t *ppos) 1796 { 1797 struct ath10k *ar = file->private_data; 1798 unsigned long period; 1799 int ret; 1800 1801 ret = kstrtoul_from_user(user_buf, count, 0, &period); 1802 if (ret) 1803 return ret; 1804 1805 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX) 1806 return -EINVAL; 1807 1808 /* there's no way to switch back to the firmware default */ 1809 if (period == 0) 1810 return -EINVAL; 1811 1812 mutex_lock(&ar->conf_mutex); 1813 1814 ar->debug.nf_cal_period = period; 1815 1816 if (ar->state != ATH10K_STATE_ON) { 1817 /* firmware is not running, nothing else to do */ 1818 ret = count; 1819 goto exit; 1820 } 1821 1822 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period, 1823 ar->debug.nf_cal_period); 1824 if (ret) { 1825 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n", 1826 ret); 1827 goto exit; 1828 } 1829 1830 ret = count; 1831 1832 exit: 1833 mutex_unlock(&ar->conf_mutex); 1834 1835 return ret; 1836 } 1837 1838 static const struct file_operations fops_nf_cal_period = { 1839 .read = ath10k_read_nf_cal_period, 1840 .write = ath10k_write_nf_cal_period, 1841 .open = simple_open, 1842 .owner = THIS_MODULE, 1843 .llseek = default_llseek, 1844 }; 1845 1846 int ath10k_debug_start(struct ath10k *ar) 1847 { 1848 int ret; 1849 1850 lockdep_assert_held(&ar->conf_mutex); 1851 1852 ret = ath10k_debug_htt_stats_req(ar); 1853 if (ret) 1854 /* continue normally anyway, this isn't serious */ 1855 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", 1856 ret); 1857 1858 if (ar->debug.fw_dbglog_mask) { 1859 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1860 ATH10K_DBGLOG_LEVEL_WARN); 1861 if (ret) 1862 /* not serious */ 1863 ath10k_warn(ar, "failed to enable dbglog during start: %d", 1864 ret); 1865 } 1866 1867 if (ar->debug.pktlog_filter) { 1868 ret = ath10k_wmi_pdev_pktlog_enable(ar, 1869 ar->debug.pktlog_filter); 1870 if (ret) 1871 /* not serious */ 1872 ath10k_warn(ar, 1873 "failed to enable pktlog filter %x: %d\n", 1874 ar->debug.pktlog_filter, ret); 1875 } else { 1876 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1877 if (ret) 1878 /* not serious */ 1879 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1880 } 1881 1882 if (ar->debug.nf_cal_period) { 1883 ret = ath10k_wmi_pdev_set_param(ar, 1884 ar->wmi.pdev_param->cal_period, 1885 ar->debug.nf_cal_period); 1886 if (ret) 1887 /* not serious */ 1888 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", 1889 ret); 1890 } 1891 1892 return ret; 1893 } 1894 1895 void ath10k_debug_stop(struct ath10k *ar) 1896 { 1897 lockdep_assert_held(&ar->conf_mutex); 1898 1899 /* Must not use _sync to avoid deadlock, we do that in 1900 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid 1901 * warning from del_timer(). */ 1902 if (ar->debug.htt_stats_mask != 0) 1903 cancel_delayed_work(&ar->debug.htt_stats_dwork); 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