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 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 file_operations name## _ops = { \
46 .read = name## _read, \
47 .open = simple_open, \
48 .llseek = generic_file_llseek, \
49 };
50
51 #define DEBUGFS_READONLY_FILE(name, fmt, value...) \
52 DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
53 DEBUGFS_READONLY_FILE_OPS(name)
54
55 #define DEBUGFS_ADD(name) \
56 debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
57
58 #define DEBUGFS_ADD_MODE(name, mode) \
59 debugfs_create_file(#name, mode, phyd, local, &name## _ops);
60
61
62 DEBUGFS_READONLY_FILE(hw_conf, "%x",
63 local->hw.conf.flags);
64 DEBUGFS_READONLY_FILE(user_power, "%d",
65 local->user_power_level);
66 DEBUGFS_READONLY_FILE(power, "%d",
67 local->hw.conf.power_level);
68 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
69 local->total_ps_buffered);
70 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
71 local->wep_iv & 0xffffff);
72 DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
73 local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
74
aqm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)75 static ssize_t aqm_read(struct file *file,
76 char __user *user_buf,
77 size_t count,
78 loff_t *ppos)
79 {
80 struct ieee80211_local *local = file->private_data;
81 struct fq *fq = &local->fq;
82 char buf[200];
83 int len = 0;
84
85 spin_lock_bh(&local->fq.lock);
86 rcu_read_lock();
87
88 len = scnprintf(buf, sizeof(buf),
89 "access name value\n"
90 "R fq_flows_cnt %u\n"
91 "R fq_backlog %u\n"
92 "R fq_overlimit %u\n"
93 "R fq_overmemory %u\n"
94 "R fq_collisions %u\n"
95 "R fq_memory_usage %u\n"
96 "RW fq_memory_limit %u\n"
97 "RW fq_limit %u\n"
98 "RW fq_quantum %u\n",
99 fq->flows_cnt,
100 fq->backlog,
101 fq->overmemory,
102 fq->overlimit,
103 fq->collisions,
104 fq->memory_usage,
105 fq->memory_limit,
106 fq->limit,
107 fq->quantum);
108
109 rcu_read_unlock();
110 spin_unlock_bh(&local->fq.lock);
111
112 return simple_read_from_buffer(user_buf, count, ppos,
113 buf, len);
114 }
115
aqm_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)116 static ssize_t aqm_write(struct file *file,
117 const char __user *user_buf,
118 size_t count,
119 loff_t *ppos)
120 {
121 struct ieee80211_local *local = file->private_data;
122 char buf[100];
123
124 if (count >= sizeof(buf))
125 return -EINVAL;
126
127 if (copy_from_user(buf, user_buf, count))
128 return -EFAULT;
129
130 if (count && buf[count - 1] == '\n')
131 buf[count - 1] = '\0';
132 else
133 buf[count] = '\0';
134
135 if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
136 return count;
137 else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
138 return count;
139 else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
140 return count;
141
142 return -EINVAL;
143 }
144
145 static const struct file_operations aqm_ops = {
146 .write = aqm_write,
147 .read = aqm_read,
148 .open = simple_open,
149 .llseek = default_llseek,
150 };
151
airtime_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)152 static ssize_t airtime_flags_read(struct file *file,
153 char __user *user_buf,
154 size_t count, loff_t *ppos)
155 {
156 struct ieee80211_local *local = file->private_data;
157 char buf[128] = {}, *pos, *end;
158
159 pos = buf;
160 end = pos + sizeof(buf) - 1;
161
162 if (local->airtime_flags & AIRTIME_USE_TX)
163 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
164 AIRTIME_USE_TX);
165 if (local->airtime_flags & AIRTIME_USE_RX)
166 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
167 AIRTIME_USE_RX);
168
169 return simple_read_from_buffer(user_buf, count, ppos, buf,
170 strlen(buf));
171 }
172
airtime_flags_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)173 static ssize_t airtime_flags_write(struct file *file,
174 const char __user *user_buf,
175 size_t count, loff_t *ppos)
176 {
177 struct ieee80211_local *local = file->private_data;
178 char buf[16];
179
180 if (count >= sizeof(buf))
181 return -EINVAL;
182
183 if (copy_from_user(buf, user_buf, count))
184 return -EFAULT;
185
186 if (count && buf[count - 1] == '\n')
187 buf[count - 1] = '\0';
188 else
189 buf[count] = '\0';
190
191 if (kstrtou16(buf, 0, &local->airtime_flags))
192 return -EINVAL;
193
194 return count;
195 }
196
197 static const struct file_operations airtime_flags_ops = {
198 .write = airtime_flags_write,
199 .read = airtime_flags_read,
200 .open = simple_open,
201 .llseek = default_llseek,
202 };
203
aql_txq_limit_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)204 static ssize_t aql_txq_limit_read(struct file *file,
205 char __user *user_buf,
206 size_t count,
207 loff_t *ppos)
208 {
209 struct ieee80211_local *local = file->private_data;
210 char buf[400];
211 int len = 0;
212
213 len = scnprintf(buf, sizeof(buf),
214 "AC AQL limit low AQL limit high\n"
215 "VO %u %u\n"
216 "VI %u %u\n"
217 "BE %u %u\n"
218 "BK %u %u\n",
219 local->aql_txq_limit_low[IEEE80211_AC_VO],
220 local->aql_txq_limit_high[IEEE80211_AC_VO],
221 local->aql_txq_limit_low[IEEE80211_AC_VI],
222 local->aql_txq_limit_high[IEEE80211_AC_VI],
223 local->aql_txq_limit_low[IEEE80211_AC_BE],
224 local->aql_txq_limit_high[IEEE80211_AC_BE],
225 local->aql_txq_limit_low[IEEE80211_AC_BK],
226 local->aql_txq_limit_high[IEEE80211_AC_BK]);
227 return simple_read_from_buffer(user_buf, count, ppos,
228 buf, len);
229 }
230
aql_txq_limit_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)231 static ssize_t aql_txq_limit_write(struct file *file,
232 const char __user *user_buf,
233 size_t count,
234 loff_t *ppos)
235 {
236 struct ieee80211_local *local = file->private_data;
237 char buf[100];
238 u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
239 struct sta_info *sta;
240
241 if (count >= sizeof(buf))
242 return -EINVAL;
243
244 if (copy_from_user(buf, user_buf, count))
245 return -EFAULT;
246
247 if (count && buf[count - 1] == '\n')
248 buf[count - 1] = '\0';
249 else
250 buf[count] = '\0';
251
252 if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
253 return -EINVAL;
254
255 if (ac >= IEEE80211_NUM_ACS)
256 return -EINVAL;
257
258 q_limit_low_old = local->aql_txq_limit_low[ac];
259 q_limit_high_old = local->aql_txq_limit_high[ac];
260
261 local->aql_txq_limit_low[ac] = q_limit_low;
262 local->aql_txq_limit_high[ac] = q_limit_high;
263
264 mutex_lock(&local->sta_mtx);
265 list_for_each_entry(sta, &local->sta_list, list) {
266 /* If a sta has customized queue limits, keep it */
267 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
268 sta->airtime[ac].aql_limit_high == q_limit_high_old) {
269 sta->airtime[ac].aql_limit_low = q_limit_low;
270 sta->airtime[ac].aql_limit_high = q_limit_high;
271 }
272 }
273 mutex_unlock(&local->sta_mtx);
274 return count;
275 }
276
277 static const struct file_operations aql_txq_limit_ops = {
278 .write = aql_txq_limit_write,
279 .read = aql_txq_limit_read,
280 .open = simple_open,
281 .llseek = default_llseek,
282 };
283
force_tx_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)284 static ssize_t force_tx_status_read(struct file *file,
285 char __user *user_buf,
286 size_t count,
287 loff_t *ppos)
288 {
289 struct ieee80211_local *local = file->private_data;
290 char buf[3];
291 int len = 0;
292
293 len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
294
295 return simple_read_from_buffer(user_buf, count, ppos,
296 buf, len);
297 }
298
force_tx_status_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)299 static ssize_t force_tx_status_write(struct file *file,
300 const char __user *user_buf,
301 size_t count,
302 loff_t *ppos)
303 {
304 struct ieee80211_local *local = file->private_data;
305 char buf[3];
306
307 if (count >= sizeof(buf))
308 return -EINVAL;
309
310 if (copy_from_user(buf, user_buf, count))
311 return -EFAULT;
312
313 if (count && buf[count - 1] == '\n')
314 buf[count - 1] = '\0';
315 else
316 buf[count] = '\0';
317
318 if (buf[0] == '0' && buf[1] == '\0')
319 local->force_tx_status = 0;
320 else if (buf[0] == '1' && buf[1] == '\0')
321 local->force_tx_status = 1;
322 else
323 return -EINVAL;
324
325 return count;
326 }
327
328 static const struct file_operations force_tx_status_ops = {
329 .write = force_tx_status_write,
330 .read = force_tx_status_read,
331 .open = simple_open,
332 .llseek = default_llseek,
333 };
334
335 #ifdef CONFIG_PM
reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)336 static ssize_t reset_write(struct file *file, const char __user *user_buf,
337 size_t count, loff_t *ppos)
338 {
339 struct ieee80211_local *local = file->private_data;
340
341 rtnl_lock();
342 __ieee80211_suspend(&local->hw, NULL);
343 __ieee80211_resume(&local->hw);
344 rtnl_unlock();
345
346 return count;
347 }
348
349 static const struct file_operations reset_ops = {
350 .write = reset_write,
351 .open = simple_open,
352 .llseek = noop_llseek,
353 };
354 #endif
355
356 static const char *hw_flag_names[] = {
357 #define FLAG(F) [IEEE80211_HW_##F] = #F
358 FLAG(HAS_RATE_CONTROL),
359 FLAG(RX_INCLUDES_FCS),
360 FLAG(HOST_BROADCAST_PS_BUFFERING),
361 FLAG(SIGNAL_UNSPEC),
362 FLAG(SIGNAL_DBM),
363 FLAG(NEED_DTIM_BEFORE_ASSOC),
364 FLAG(SPECTRUM_MGMT),
365 FLAG(AMPDU_AGGREGATION),
366 FLAG(SUPPORTS_PS),
367 FLAG(PS_NULLFUNC_STACK),
368 FLAG(SUPPORTS_DYNAMIC_PS),
369 FLAG(MFP_CAPABLE),
370 FLAG(WANT_MONITOR_VIF),
371 FLAG(NO_AUTO_VIF),
372 FLAG(SW_CRYPTO_CONTROL),
373 FLAG(SUPPORT_FAST_XMIT),
374 FLAG(REPORTS_TX_ACK_STATUS),
375 FLAG(CONNECTION_MONITOR),
376 FLAG(QUEUE_CONTROL),
377 FLAG(SUPPORTS_PER_STA_GTK),
378 FLAG(AP_LINK_PS),
379 FLAG(TX_AMPDU_SETUP_IN_HW),
380 FLAG(SUPPORTS_RC_TABLE),
381 FLAG(P2P_DEV_ADDR_FOR_INTF),
382 FLAG(TIMING_BEACON_ONLY),
383 FLAG(SUPPORTS_HT_CCK_RATES),
384 FLAG(CHANCTX_STA_CSA),
385 FLAG(SUPPORTS_CLONED_SKBS),
386 FLAG(SINGLE_SCAN_ON_ALL_BANDS),
387 FLAG(TDLS_WIDER_BW),
388 FLAG(SUPPORTS_AMSDU_IN_AMPDU),
389 FLAG(BEACON_TX_STATUS),
390 FLAG(NEEDS_UNIQUE_STA_ADDR),
391 FLAG(SUPPORTS_REORDERING_BUFFER),
392 FLAG(USES_RSS),
393 FLAG(TX_AMSDU),
394 FLAG(TX_FRAG_LIST),
395 FLAG(REPORTS_LOW_ACK),
396 FLAG(SUPPORTS_TX_FRAG),
397 FLAG(SUPPORTS_TDLS_BUFFER_STA),
398 FLAG(DEAUTH_NEED_MGD_TX_PREP),
399 FLAG(DOESNT_SUPPORT_QOS_NDP),
400 FLAG(BUFF_MMPDU_TXQ),
401 FLAG(SUPPORTS_VHT_EXT_NSS_BW),
402 FLAG(STA_MMPDU_TXQ),
403 FLAG(TX_STATUS_NO_AMPDU_LEN),
404 FLAG(SUPPORTS_MULTI_BSSID),
405 FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
406 FLAG(AMPDU_KEYBORDER_SUPPORT),
407 FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
408 #undef FLAG
409 };
410
hwflags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)411 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
412 size_t count, loff_t *ppos)
413 {
414 struct ieee80211_local *local = file->private_data;
415 size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
416 char *buf = kzalloc(bufsz, GFP_KERNEL);
417 char *pos = buf, *end = buf + bufsz - 1;
418 ssize_t rv;
419 int i;
420
421 if (!buf)
422 return -ENOMEM;
423
424 /* fail compilation if somebody adds or removes
425 * a flag without updating the name array above
426 */
427 BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
428
429 for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
430 if (test_bit(i, local->hw.flags))
431 pos += scnprintf(pos, end - pos, "%s\n",
432 hw_flag_names[i]);
433 }
434
435 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
436 kfree(buf);
437 return rv;
438 }
439
misc_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)440 static ssize_t misc_read(struct file *file, char __user *user_buf,
441 size_t count, loff_t *ppos)
442 {
443 struct ieee80211_local *local = file->private_data;
444 /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
445 size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
446 char *buf;
447 char *pos, *end;
448 ssize_t rv;
449 int i;
450 int ln;
451
452 buf = kzalloc(bufsz, GFP_KERNEL);
453 if (!buf)
454 return -ENOMEM;
455
456 pos = buf;
457 end = buf + bufsz - 1;
458
459 pos += scnprintf(pos, end - pos, "pending:\n");
460
461 for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
462 ln = skb_queue_len(&local->pending[i]);
463 pos += scnprintf(pos, end - pos, "[%i] %d\n",
464 i, ln);
465 }
466
467 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
468 kfree(buf);
469 return rv;
470 }
471
queues_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)472 static ssize_t queues_read(struct file *file, char __user *user_buf,
473 size_t count, loff_t *ppos)
474 {
475 struct ieee80211_local *local = file->private_data;
476 unsigned long flags;
477 char buf[IEEE80211_MAX_QUEUES * 20];
478 int q, res = 0;
479
480 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
481 for (q = 0; q < local->hw.queues; q++)
482 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
483 local->queue_stop_reasons[q],
484 skb_queue_len(&local->pending[q]));
485 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
486
487 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
488 }
489
490 DEBUGFS_READONLY_FILE_OPS(hwflags);
491 DEBUGFS_READONLY_FILE_OPS(queues);
492 DEBUGFS_READONLY_FILE_OPS(misc);
493
494 /* statistics stuff */
495
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))496 static ssize_t format_devstat_counter(struct ieee80211_local *local,
497 char __user *userbuf,
498 size_t count, loff_t *ppos,
499 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
500 int buflen))
501 {
502 struct ieee80211_low_level_stats stats;
503 char buf[20];
504 int res;
505
506 rtnl_lock();
507 res = drv_get_stats(local, &stats);
508 rtnl_unlock();
509 if (res)
510 return res;
511 res = printvalue(&stats, buf, sizeof(buf));
512 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
513 }
514
515 #define DEBUGFS_DEVSTATS_FILE(name) \
516 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
517 char *buf, int buflen) \
518 { \
519 return scnprintf(buf, buflen, "%u\n", stats->name); \
520 } \
521 static ssize_t stats_ ##name## _read(struct file *file, \
522 char __user *userbuf, \
523 size_t count, loff_t *ppos) \
524 { \
525 return format_devstat_counter(file->private_data, \
526 userbuf, \
527 count, \
528 ppos, \
529 print_devstats_##name); \
530 } \
531 \
532 static const struct file_operations stats_ ##name## _ops = { \
533 .read = stats_ ##name## _read, \
534 .open = simple_open, \
535 .llseek = generic_file_llseek, \
536 };
537
538 #define DEBUGFS_STATS_ADD(name) \
539 debugfs_create_u32(#name, 0400, statsd, &local->name);
540 #define DEBUGFS_DEVSTATS_ADD(name) \
541 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
542
543 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
544 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
545 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
546 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
547
debugfs_hw_add(struct ieee80211_local * local)548 void debugfs_hw_add(struct ieee80211_local *local)
549 {
550 struct dentry *phyd = local->hw.wiphy->debugfsdir;
551 struct dentry *statsd;
552
553 if (!phyd)
554 return;
555
556 local->debugfs.keys = debugfs_create_dir("keys", phyd);
557
558 DEBUGFS_ADD(total_ps_buffered);
559 DEBUGFS_ADD(wep_iv);
560 DEBUGFS_ADD(rate_ctrl_alg);
561 DEBUGFS_ADD(queues);
562 DEBUGFS_ADD(misc);
563 #ifdef CONFIG_PM
564 DEBUGFS_ADD_MODE(reset, 0200);
565 #endif
566 DEBUGFS_ADD(hwflags);
567 DEBUGFS_ADD(user_power);
568 DEBUGFS_ADD(power);
569 DEBUGFS_ADD(hw_conf);
570 DEBUGFS_ADD_MODE(force_tx_status, 0600);
571
572 if (local->ops->wake_tx_queue)
573 DEBUGFS_ADD_MODE(aqm, 0600);
574
575 DEBUGFS_ADD_MODE(airtime_flags, 0600);
576
577 DEBUGFS_ADD(aql_txq_limit);
578 debugfs_create_u32("aql_threshold", 0600,
579 phyd, &local->aql_threshold);
580
581 statsd = debugfs_create_dir("statistics", phyd);
582
583 /* if the dir failed, don't put all the other things into the root! */
584 if (!statsd)
585 return;
586
587 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
588 DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
589 DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
590 DEBUGFS_STATS_ADD(dot11FailedCount);
591 DEBUGFS_STATS_ADD(dot11RetryCount);
592 DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
593 DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
594 DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
595 DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
596 DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
597 DEBUGFS_STATS_ADD(tx_handlers_drop);
598 DEBUGFS_STATS_ADD(tx_handlers_queued);
599 DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
600 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
601 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
602 DEBUGFS_STATS_ADD(rx_handlers_drop);
603 DEBUGFS_STATS_ADD(rx_handlers_queued);
604 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
605 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
606 DEBUGFS_STATS_ADD(tx_expand_skb_head);
607 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
608 DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
609 DEBUGFS_STATS_ADD(rx_handlers_fragments);
610 DEBUGFS_STATS_ADD(tx_status_drop);
611 #endif
612 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
613 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
614 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
615 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
616 }
617