1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211 debugfs for wireless PHYs
4 *
5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2014 Intel Mobile Communications GmbH
7 * Copyright (C) 2018 - 2019, 2021-2025 Intel Corporation
8 */
9
10 #include <linux/debugfs.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/vmalloc.h>
13 #include "ieee80211_i.h"
14 #include "driver-ops.h"
15 #include "rate.h"
16 #include "debugfs.h"
17
18 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
19
mac80211_format_buffer(char __user * userbuf,size_t count,loff_t * ppos,char * fmt,...)20 int mac80211_format_buffer(char __user *userbuf, size_t count,
21 loff_t *ppos, char *fmt, ...)
22 {
23 va_list args;
24 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
25 int res;
26
27 va_start(args, fmt);
28 res = vscnprintf(buf, sizeof(buf), fmt, args);
29 va_end(args);
30
31 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
32 }
33
34 #define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
35 static ssize_t name## _read(struct file *file, char __user *userbuf, \
36 size_t count, loff_t *ppos) \
37 { \
38 struct ieee80211_local *local = file->private_data; \
39 \
40 return mac80211_format_buffer(userbuf, count, ppos, \
41 fmt "\n", ##value); \
42 }
43
44 #define DEBUGFS_READONLY_FILE_OPS(name) \
45 static const struct debugfs_short_fops name## _ops = { \
46 .read = name## _read, \
47 .llseek = generic_file_llseek, \
48 };
49
50 #define DEBUGFS_READONLY_FILE(name, fmt, value...) \
51 DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
52 DEBUGFS_READONLY_FILE_OPS(name)
53
54 #define DEBUGFS_ADD(name) \
55 debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
56
57 #define DEBUGFS_ADD_MODE(name, mode) \
58 debugfs_create_file(#name, mode, phyd, local, &name## _ops);
59
60
61 DEBUGFS_READONLY_FILE(hw_conf, "%x",
62 local->hw.conf.flags);
63 DEBUGFS_READONLY_FILE(user_power, "%d",
64 local->user_power_level);
65 DEBUGFS_READONLY_FILE(power, "%d",
66 local->hw.conf.power_level);
67 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
68 local->total_ps_buffered);
69 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
70 local->wep_iv & 0xffffff);
71 DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
72 local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
73
aqm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)74 static ssize_t aqm_read(struct file *file,
75 char __user *user_buf,
76 size_t count,
77 loff_t *ppos)
78 {
79 struct ieee80211_local *local = file->private_data;
80 struct fq *fq = &local->fq;
81 char buf[200];
82 int len = 0;
83
84 spin_lock_bh(&local->fq.lock);
85
86 len = scnprintf(buf, sizeof(buf),
87 "access name value\n"
88 "R fq_flows_cnt %u\n"
89 "R fq_backlog %u\n"
90 "R fq_overlimit %u\n"
91 "R fq_overmemory %u\n"
92 "R fq_collisions %u\n"
93 "R fq_memory_usage %u\n"
94 "RW fq_memory_limit %u\n"
95 "RW fq_limit %u\n"
96 "RW fq_quantum %u\n",
97 fq->flows_cnt,
98 fq->backlog,
99 fq->overmemory,
100 fq->overlimit,
101 fq->collisions,
102 fq->memory_usage,
103 fq->memory_limit,
104 fq->limit,
105 fq->quantum);
106
107 spin_unlock_bh(&local->fq.lock);
108
109 return simple_read_from_buffer(user_buf, count, ppos,
110 buf, len);
111 }
112
aqm_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)113 static ssize_t aqm_write(struct file *file,
114 const char __user *user_buf,
115 size_t count,
116 loff_t *ppos)
117 {
118 struct ieee80211_local *local = file->private_data;
119 char buf[100];
120
121 if (count >= sizeof(buf))
122 return -EINVAL;
123
124 if (copy_from_user(buf, user_buf, count))
125 return -EFAULT;
126
127 if (count && buf[count - 1] == '\n')
128 buf[count - 1] = '\0';
129 else
130 buf[count] = '\0';
131
132 if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
133 return count;
134 else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
135 return count;
136 else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
137 return count;
138
139 return -EINVAL;
140 }
141
142 static const struct debugfs_short_fops aqm_ops = {
143 .write = aqm_write,
144 .read = aqm_read,
145 .llseek = default_llseek,
146 };
147
airtime_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)148 static ssize_t airtime_flags_read(struct file *file,
149 char __user *user_buf,
150 size_t count, loff_t *ppos)
151 {
152 struct ieee80211_local *local = file->private_data;
153 char buf[128] = {}, *pos, *end;
154
155 pos = buf;
156 end = pos + sizeof(buf) - 1;
157
158 if (local->airtime_flags & AIRTIME_USE_TX)
159 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
160 AIRTIME_USE_TX);
161 if (local->airtime_flags & AIRTIME_USE_RX)
162 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
163 AIRTIME_USE_RX);
164
165 return simple_read_from_buffer(user_buf, count, ppos, buf,
166 strlen(buf));
167 }
168
airtime_flags_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)169 static ssize_t airtime_flags_write(struct file *file,
170 const char __user *user_buf,
171 size_t count, loff_t *ppos)
172 {
173 struct ieee80211_local *local = file->private_data;
174 char buf[16];
175
176 if (count >= sizeof(buf))
177 return -EINVAL;
178
179 if (copy_from_user(buf, user_buf, count))
180 return -EFAULT;
181
182 if (count && buf[count - 1] == '\n')
183 buf[count - 1] = '\0';
184 else
185 buf[count] = '\0';
186
187 if (kstrtou16(buf, 0, &local->airtime_flags))
188 return -EINVAL;
189
190 return count;
191 }
192
193 static const struct debugfs_short_fops airtime_flags_ops = {
194 .write = airtime_flags_write,
195 .read = airtime_flags_read,
196 .llseek = default_llseek,
197 };
198
aql_pending_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)199 static ssize_t aql_pending_read(struct file *file,
200 char __user *user_buf,
201 size_t count, loff_t *ppos)
202 {
203 struct ieee80211_local *local = file->private_data;
204 char buf[400];
205 int len = 0;
206
207 len = scnprintf(buf, sizeof(buf),
208 "AC AQL pending\n"
209 "VO %u us\n"
210 "VI %u us\n"
211 "BE %u us\n"
212 "BK %u us\n"
213 "total %u us\n",
214 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]),
215 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]),
216 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]),
217 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]),
218 atomic_read(&local->aql_total_pending_airtime));
219 return simple_read_from_buffer(user_buf, count, ppos,
220 buf, len);
221 }
222
223 static const struct debugfs_short_fops aql_pending_ops = {
224 .read = aql_pending_read,
225 .llseek = default_llseek,
226 };
227
aql_txq_limit_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)228 static ssize_t aql_txq_limit_read(struct file *file,
229 char __user *user_buf,
230 size_t count,
231 loff_t *ppos)
232 {
233 struct ieee80211_local *local = file->private_data;
234 char buf[400];
235 int len = 0;
236
237 len = scnprintf(buf, sizeof(buf),
238 "AC AQL limit low AQL limit high\n"
239 "VO %u %u\n"
240 "VI %u %u\n"
241 "BE %u %u\n"
242 "BK %u %u\n",
243 local->aql_txq_limit_low[IEEE80211_AC_VO],
244 local->aql_txq_limit_high[IEEE80211_AC_VO],
245 local->aql_txq_limit_low[IEEE80211_AC_VI],
246 local->aql_txq_limit_high[IEEE80211_AC_VI],
247 local->aql_txq_limit_low[IEEE80211_AC_BE],
248 local->aql_txq_limit_high[IEEE80211_AC_BE],
249 local->aql_txq_limit_low[IEEE80211_AC_BK],
250 local->aql_txq_limit_high[IEEE80211_AC_BK]);
251 return simple_read_from_buffer(user_buf, count, ppos,
252 buf, len);
253 }
254
aql_txq_limit_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)255 static ssize_t aql_txq_limit_write(struct file *file,
256 const char __user *user_buf,
257 size_t count,
258 loff_t *ppos)
259 {
260 struct ieee80211_local *local = file->private_data;
261 char buf[100];
262 u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
263 struct sta_info *sta;
264
265 if (count >= sizeof(buf))
266 return -EINVAL;
267
268 if (copy_from_user(buf, user_buf, count))
269 return -EFAULT;
270
271 if (count && buf[count - 1] == '\n')
272 buf[count - 1] = '\0';
273 else
274 buf[count] = '\0';
275
276 if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
277 return -EINVAL;
278
279 if (ac >= IEEE80211_NUM_ACS)
280 return -EINVAL;
281
282 q_limit_low_old = local->aql_txq_limit_low[ac];
283 q_limit_high_old = local->aql_txq_limit_high[ac];
284
285 guard(wiphy)(local->hw.wiphy);
286
287 local->aql_txq_limit_low[ac] = q_limit_low;
288 local->aql_txq_limit_high[ac] = q_limit_high;
289
290 list_for_each_entry(sta, &local->sta_list, list) {
291 /* If a sta has customized queue limits, keep it */
292 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
293 sta->airtime[ac].aql_limit_high == q_limit_high_old) {
294 sta->airtime[ac].aql_limit_low = q_limit_low;
295 sta->airtime[ac].aql_limit_high = q_limit_high;
296 }
297 }
298
299 return count;
300 }
301
302 static const struct debugfs_short_fops aql_txq_limit_ops = {
303 .write = aql_txq_limit_write,
304 .read = aql_txq_limit_read,
305 .llseek = default_llseek,
306 };
307
aql_enable_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)308 static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
309 size_t count, loff_t *ppos)
310 {
311 char buf[3];
312 int len;
313
314 len = scnprintf(buf, sizeof(buf), "%d\n",
315 !static_key_false(&aql_disable.key));
316
317 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
318 }
319
aql_enable_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)320 static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
321 size_t count, loff_t *ppos)
322 {
323 char buf[3];
324 size_t len;
325
326 if (count > sizeof(buf))
327 return -EINVAL;
328
329 if (copy_from_user(buf, user_buf, count))
330 return -EFAULT;
331
332 buf[sizeof(buf) - 1] = '\0';
333 len = strlen(buf);
334 if (len > 0 && buf[len - 1] == '\n')
335 buf[len - 1] = 0;
336
337 if (buf[0] == '0' && buf[1] == '\0')
338 static_branch_enable(&aql_disable);
339 else if (buf[0] == '1' && buf[1] == '\0')
340 static_branch_disable(&aql_disable);
341 else
342 return -EINVAL;
343
344 return count;
345 }
346
347 static const struct debugfs_short_fops aql_enable_ops = {
348 .write = aql_enable_write,
349 .read = aql_enable_read,
350 .llseek = default_llseek,
351 };
352
force_tx_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)353 static ssize_t force_tx_status_read(struct file *file,
354 char __user *user_buf,
355 size_t count,
356 loff_t *ppos)
357 {
358 struct ieee80211_local *local = file->private_data;
359 char buf[3];
360 int len = 0;
361
362 len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
363
364 return simple_read_from_buffer(user_buf, count, ppos,
365 buf, len);
366 }
367
force_tx_status_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)368 static ssize_t force_tx_status_write(struct file *file,
369 const char __user *user_buf,
370 size_t count,
371 loff_t *ppos)
372 {
373 struct ieee80211_local *local = file->private_data;
374 char buf[3];
375
376 if (count >= sizeof(buf))
377 return -EINVAL;
378
379 if (copy_from_user(buf, user_buf, count))
380 return -EFAULT;
381
382 if (count && buf[count - 1] == '\n')
383 buf[count - 1] = '\0';
384 else
385 buf[count] = '\0';
386
387 if (buf[0] == '0' && buf[1] == '\0')
388 local->force_tx_status = 0;
389 else if (buf[0] == '1' && buf[1] == '\0')
390 local->force_tx_status = 1;
391 else
392 return -EINVAL;
393
394 return count;
395 }
396
397 static const struct debugfs_short_fops force_tx_status_ops = {
398 .write = force_tx_status_write,
399 .read = force_tx_status_read,
400 .llseek = default_llseek,
401 };
402
403 #ifdef CONFIG_PM
reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)404 static ssize_t reset_write(struct file *file, const char __user *user_buf,
405 size_t count, loff_t *ppos)
406 {
407 struct ieee80211_local *local = file->private_data;
408 int ret;
409
410 rtnl_lock();
411 wiphy_lock(local->hw.wiphy);
412 __ieee80211_suspend(&local->hw, NULL);
413 ret = __ieee80211_resume(&local->hw);
414 wiphy_unlock(local->hw.wiphy);
415
416 if (ret)
417 cfg80211_shutdown_all_interfaces(local->hw.wiphy);
418
419 rtnl_unlock();
420
421 return count;
422 }
423
424 static const struct debugfs_short_fops reset_ops = {
425 .write = reset_write,
426 .llseek = noop_llseek,
427 };
428 #endif
429
430 static const char *hw_flag_names[] = {
431 #define FLAG(F) [IEEE80211_HW_##F] = #F
432 FLAG(HAS_RATE_CONTROL),
433 FLAG(RX_INCLUDES_FCS),
434 FLAG(HOST_BROADCAST_PS_BUFFERING),
435 FLAG(SIGNAL_UNSPEC),
436 FLAG(SIGNAL_DBM),
437 FLAG(NEED_DTIM_BEFORE_ASSOC),
438 FLAG(SPECTRUM_MGMT),
439 FLAG(AMPDU_AGGREGATION),
440 FLAG(SUPPORTS_PS),
441 FLAG(PS_NULLFUNC_STACK),
442 FLAG(SUPPORTS_DYNAMIC_PS),
443 FLAG(MFP_CAPABLE),
444 FLAG(WANT_MONITOR_VIF),
445 FLAG(NO_VIRTUAL_MONITOR),
446 FLAG(NO_AUTO_VIF),
447 FLAG(SW_CRYPTO_CONTROL),
448 FLAG(SUPPORT_FAST_XMIT),
449 FLAG(REPORTS_TX_ACK_STATUS),
450 FLAG(CONNECTION_MONITOR),
451 FLAG(QUEUE_CONTROL),
452 FLAG(SUPPORTS_PER_STA_GTK),
453 FLAG(AP_LINK_PS),
454 FLAG(TX_AMPDU_SETUP_IN_HW),
455 FLAG(SUPPORTS_RC_TABLE),
456 FLAG(P2P_DEV_ADDR_FOR_INTF),
457 FLAG(TIMING_BEACON_ONLY),
458 FLAG(SUPPORTS_HT_CCK_RATES),
459 FLAG(CHANCTX_STA_CSA),
460 FLAG(SUPPORTS_CLONED_SKBS),
461 FLAG(SINGLE_SCAN_ON_ALL_BANDS),
462 FLAG(TDLS_WIDER_BW),
463 FLAG(SUPPORTS_AMSDU_IN_AMPDU),
464 FLAG(BEACON_TX_STATUS),
465 FLAG(NEEDS_UNIQUE_STA_ADDR),
466 FLAG(SUPPORTS_REORDERING_BUFFER),
467 FLAG(USES_RSS),
468 FLAG(TX_AMSDU),
469 FLAG(TX_FRAG_LIST),
470 FLAG(REPORTS_LOW_ACK),
471 FLAG(SUPPORTS_TX_FRAG),
472 FLAG(SUPPORTS_TDLS_BUFFER_STA),
473 FLAG(DOESNT_SUPPORT_QOS_NDP),
474 FLAG(BUFF_MMPDU_TXQ),
475 FLAG(SUPPORTS_VHT_EXT_NSS_BW),
476 FLAG(STA_MMPDU_TXQ),
477 FLAG(TX_STATUS_NO_AMPDU_LEN),
478 FLAG(SUPPORTS_MULTI_BSSID),
479 FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
480 FLAG(AMPDU_KEYBORDER_SUPPORT),
481 FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
482 FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
483 FLAG(SUPPORTS_CONC_MON_RX_DECAP),
484 FLAG(DETECTS_COLOR_COLLISION),
485 FLAG(MLO_MCAST_MULTI_LINK_TX),
486 FLAG(DISALLOW_PUNCTURING),
487 FLAG(HANDLES_QUIET_CSA),
488 FLAG(STRICT),
489 #undef FLAG
490 };
491
hwflags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)492 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
493 size_t count, loff_t *ppos)
494 {
495 struct ieee80211_local *local = file->private_data;
496 size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
497 char *buf = kzalloc(bufsz, GFP_KERNEL);
498 char *pos = buf, *end = buf + bufsz - 1;
499 ssize_t rv;
500 int i;
501
502 if (!buf)
503 return -ENOMEM;
504
505 /* fail compilation if somebody adds or removes
506 * a flag without updating the name array above
507 */
508 BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
509
510 for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
511 if (test_bit(i, local->hw.flags))
512 pos += scnprintf(pos, end - pos, "%s\n",
513 hw_flag_names[i]);
514 }
515
516 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
517 kfree(buf);
518 return rv;
519 }
520
hwflags_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)521 static ssize_t hwflags_write(struct file *file, const char __user *user_buf,
522 size_t count, loff_t *ppos)
523 {
524 struct ieee80211_local *local = file->private_data;
525 char buf[100];
526 int val;
527
528 if (count >= sizeof(buf))
529 return -EINVAL;
530
531 if (copy_from_user(buf, user_buf, count))
532 return -EFAULT;
533
534 if (count && buf[count - 1] == '\n')
535 buf[count - 1] = '\0';
536 else
537 buf[count] = '\0';
538
539 if (sscanf(buf, "strict=%d", &val) == 1) {
540 switch (val) {
541 case 0:
542 ieee80211_hw_set(&local->hw, STRICT);
543 return count;
544 case 1:
545 __clear_bit(IEEE80211_HW_STRICT, local->hw.flags);
546 return count;
547 default:
548 return -EINVAL;
549 }
550 }
551
552 return -EINVAL;
553 }
554
555 static const struct file_operations hwflags_ops = {
556 .open = simple_open,
557 .read = hwflags_read,
558 .write = hwflags_write,
559 };
560
misc_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)561 static ssize_t misc_read(struct file *file, char __user *user_buf,
562 size_t count, loff_t *ppos)
563 {
564 struct ieee80211_local *local = file->private_data;
565 /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
566 size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
567 char *buf;
568 char *pos, *end;
569 ssize_t rv;
570 int i;
571 int ln;
572
573 buf = kzalloc(bufsz, GFP_KERNEL);
574 if (!buf)
575 return -ENOMEM;
576
577 pos = buf;
578 end = buf + bufsz - 1;
579
580 pos += scnprintf(pos, end - pos, "pending:\n");
581
582 for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
583 ln = skb_queue_len(&local->pending[i]);
584 pos += scnprintf(pos, end - pos, "[%i] %d\n",
585 i, ln);
586 }
587
588 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
589 kfree(buf);
590 return rv;
591 }
592
queues_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)593 static ssize_t queues_read(struct file *file, char __user *user_buf,
594 size_t count, loff_t *ppos)
595 {
596 struct ieee80211_local *local = file->private_data;
597 unsigned long flags;
598 char buf[IEEE80211_MAX_QUEUES * 20];
599 int q, res = 0;
600
601 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
602 for (q = 0; q < local->hw.queues; q++)
603 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
604 local->queue_stop_reasons[q],
605 skb_queue_len(&local->pending[q]));
606 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
607
608 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
609 }
610
611 DEBUGFS_READONLY_FILE_OPS(queues);
612 DEBUGFS_READONLY_FILE_OPS(misc);
613
614 /* statistics stuff */
615
format_devstat_counter(struct ieee80211_local * local,char __user * userbuf,size_t count,loff_t * ppos,int (* printvalue)(struct ieee80211_low_level_stats * stats,char * buf,int buflen))616 static ssize_t format_devstat_counter(struct ieee80211_local *local,
617 char __user *userbuf,
618 size_t count, loff_t *ppos,
619 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
620 int buflen))
621 {
622 struct ieee80211_low_level_stats stats;
623 char buf[20];
624 int res;
625
626 wiphy_lock(local->hw.wiphy);
627 res = drv_get_stats(local, &stats);
628 wiphy_unlock(local->hw.wiphy);
629 if (res)
630 return res;
631 res = printvalue(&stats, buf, sizeof(buf));
632 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
633 }
634
635 #define DEBUGFS_DEVSTATS_FILE(name) \
636 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
637 char *buf, int buflen) \
638 { \
639 return scnprintf(buf, buflen, "%u\n", stats->name); \
640 } \
641 static ssize_t stats_ ##name## _read(struct file *file, \
642 char __user *userbuf, \
643 size_t count, loff_t *ppos) \
644 { \
645 return format_devstat_counter(file->private_data, \
646 userbuf, \
647 count, \
648 ppos, \
649 print_devstats_##name); \
650 } \
651 \
652 static const struct debugfs_short_fops stats_ ##name## _ops = { \
653 .read = stats_ ##name## _read, \
654 .llseek = generic_file_llseek, \
655 };
656
657 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
658 #define DEBUGFS_STATS_ADD(name) \
659 debugfs_create_u32(#name, 0400, statsd, &local->name);
660 #endif
661 #define DEBUGFS_DEVSTATS_ADD(name) \
662 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
663
664 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
665 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
666 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
667 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
668
debugfs_hw_add(struct ieee80211_local * local)669 void debugfs_hw_add(struct ieee80211_local *local)
670 {
671 struct dentry *phyd = local->hw.wiphy->debugfsdir;
672 struct dentry *statsd;
673
674 if (!phyd)
675 return;
676
677 local->debugfs.keys = debugfs_create_dir("keys", phyd);
678
679 DEBUGFS_ADD(total_ps_buffered);
680 DEBUGFS_ADD(wep_iv);
681 DEBUGFS_ADD(rate_ctrl_alg);
682 DEBUGFS_ADD(queues);
683 DEBUGFS_ADD(misc);
684 #ifdef CONFIG_PM
685 DEBUGFS_ADD_MODE(reset, 0200);
686 #endif
687 DEBUGFS_ADD_MODE(hwflags, 0600);
688 DEBUGFS_ADD(user_power);
689 DEBUGFS_ADD(power);
690 DEBUGFS_ADD(hw_conf);
691 DEBUGFS_ADD_MODE(force_tx_status, 0600);
692 DEBUGFS_ADD_MODE(aql_enable, 0600);
693 DEBUGFS_ADD(aql_pending);
694 DEBUGFS_ADD_MODE(aqm, 0600);
695
696 DEBUGFS_ADD_MODE(airtime_flags, 0600);
697
698 DEBUGFS_ADD(aql_txq_limit);
699 debugfs_create_u32("aql_threshold", 0600,
700 phyd, &local->aql_threshold);
701
702 statsd = debugfs_create_dir("statistics", phyd);
703
704 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
705 DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
706 DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
707 DEBUGFS_STATS_ADD(dot11FailedCount);
708 DEBUGFS_STATS_ADD(dot11RetryCount);
709 DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
710 DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
711 DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
712 DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
713 DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
714 DEBUGFS_STATS_ADD(tx_handlers_queued);
715 DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
716 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
717 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
718 DEBUGFS_STATS_ADD(rx_handlers_drop);
719 DEBUGFS_STATS_ADD(rx_handlers_queued);
720 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
721 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
722 DEBUGFS_STATS_ADD(tx_expand_skb_head);
723 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
724 DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
725 DEBUGFS_STATS_ADD(rx_handlers_fragments);
726 DEBUGFS_STATS_ADD(tx_status_drop);
727 #endif
728 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
729 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
730 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
731 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
732 }
733