debugfs.c

  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
 20int 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...)			\
 35static 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)			\
 45static 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
 61DEBUGFS_READONLY_FILE(hw_conf, "%x",
 62		      local->hw.conf.flags);
 63DEBUGFS_READONLY_FILE(user_power, "%d",
 64		      local->user_power_level);
 65DEBUGFS_READONLY_FILE(power, "%d",
 66		      local->hw.conf.power_level);
 67DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
 68		      local->total_ps_buffered);
 69DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
 70		      local->wep_iv & 0xffffff);
 71DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
 72	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
 73
 74static 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
113static 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
142static const struct debugfs_short_fops aqm_ops = {
143	.write = aqm_write,
144	.read = aqm_read,
145	.llseek = default_llseek,
146};
147
148static 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
169static 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
193static const struct debugfs_short_fops airtime_flags_ops = {
194	.write = airtime_flags_write,
195	.read = airtime_flags_read,
196	.llseek = default_llseek,
197};
198
199static 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
223static const struct debugfs_short_fops aql_pending_ops = {
224	.read = aql_pending_read,
225	.llseek = default_llseek,
226};
227
228static 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
255static 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
302static 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
308static 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
320static 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
347static const struct debugfs_short_fops aql_enable_ops = {
348	.write = aql_enable_write,
349	.read = aql_enable_read,
350	.llseek = default_llseek,
351};
352
353static 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
368static 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
397static 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
404static 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
424static const struct debugfs_short_fops reset_ops = {
425	.write = reset_write,
426	.llseek = noop_llseek,
427};
428#endif
429
430static 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
492static 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
521static 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
555static const struct file_operations hwflags_ops = {
556	.open = simple_open,
557	.read = hwflags_read,
558	.write = hwflags_write,
559};
560
561static 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
593static 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
611DEBUGFS_READONLY_FILE_OPS(queues);
612DEBUGFS_READONLY_FILE_OPS(misc);
613
614/* statistics stuff */
615
616static 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)					\
636static 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}									\
641static 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									\
652static 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
664DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
665DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
666DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
667DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
668
669void 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}