Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
[linux-2.6-microblaze.git] / net / mac80211 / 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 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
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
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
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         size_t len;
124
125         if (count > sizeof(buf))
126                 return -EINVAL;
127
128         if (copy_from_user(buf, user_buf, count))
129                 return -EFAULT;
130
131         buf[sizeof(buf) - 1] = '\0';
132         len = strlen(buf);
133         if (len > 0 && buf[len-1] == '\n')
134                 buf[len-1] = 0;
135
136         if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
137                 return count;
138         else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
139                 return count;
140         else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
141                 return count;
142
143         return -EINVAL;
144 }
145
146 static const struct file_operations aqm_ops = {
147         .write = aqm_write,
148         .read = aqm_read,
149         .open = simple_open,
150         .llseek = default_llseek,
151 };
152
153 static ssize_t airtime_flags_read(struct file *file,
154                                   char __user *user_buf,
155                                   size_t count, loff_t *ppos)
156 {
157         struct ieee80211_local *local = file->private_data;
158         char buf[128] = {}, *pos, *end;
159
160         pos = buf;
161         end = pos + sizeof(buf) - 1;
162
163         if (local->airtime_flags & AIRTIME_USE_TX)
164                 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
165                                  AIRTIME_USE_TX);
166         if (local->airtime_flags & AIRTIME_USE_RX)
167                 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
168                                  AIRTIME_USE_RX);
169
170         return simple_read_from_buffer(user_buf, count, ppos, buf,
171                                        strlen(buf));
172 }
173
174 static ssize_t airtime_flags_write(struct file *file,
175                                    const char __user *user_buf,
176                                    size_t count, loff_t *ppos)
177 {
178         struct ieee80211_local *local = file->private_data;
179         char buf[16];
180         size_t len;
181
182         if (count > sizeof(buf))
183                 return -EINVAL;
184
185         if (copy_from_user(buf, user_buf, count))
186                 return -EFAULT;
187
188         buf[sizeof(buf) - 1] = 0;
189         len = strlen(buf);
190         if (len > 0 && buf[len - 1] == '\n')
191                 buf[len - 1] = 0;
192
193         if (kstrtou16(buf, 0, &local->airtime_flags))
194                 return -EINVAL;
195
196         return count;
197 }
198
199 static const struct file_operations airtime_flags_ops = {
200         .write = airtime_flags_write,
201         .read = airtime_flags_read,
202         .open = simple_open,
203         .llseek = default_llseek,
204 };
205
206 static ssize_t aql_txq_limit_read(struct file *file,
207                                   char __user *user_buf,
208                                   size_t count,
209                                   loff_t *ppos)
210 {
211         struct ieee80211_local *local = file->private_data;
212         char buf[400];
213         int len = 0;
214
215         len = scnprintf(buf, sizeof(buf),
216                         "AC     AQL limit low   AQL limit high\n"
217                         "VO     %u              %u\n"
218                         "VI     %u              %u\n"
219                         "BE     %u              %u\n"
220                         "BK     %u              %u\n",
221                         local->aql_txq_limit_low[IEEE80211_AC_VO],
222                         local->aql_txq_limit_high[IEEE80211_AC_VO],
223                         local->aql_txq_limit_low[IEEE80211_AC_VI],
224                         local->aql_txq_limit_high[IEEE80211_AC_VI],
225                         local->aql_txq_limit_low[IEEE80211_AC_BE],
226                         local->aql_txq_limit_high[IEEE80211_AC_BE],
227                         local->aql_txq_limit_low[IEEE80211_AC_BK],
228                         local->aql_txq_limit_high[IEEE80211_AC_BK]);
229         return simple_read_from_buffer(user_buf, count, ppos,
230                                        buf, len);
231 }
232
233 static ssize_t aql_txq_limit_write(struct file *file,
234                                    const char __user *user_buf,
235                                    size_t count,
236                                    loff_t *ppos)
237 {
238         struct ieee80211_local *local = file->private_data;
239         char buf[100];
240         size_t len;
241         u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
242         struct sta_info *sta;
243
244         if (count > sizeof(buf))
245                 return -EINVAL;
246
247         if (copy_from_user(buf, user_buf, count))
248                 return -EFAULT;
249
250         buf[sizeof(buf) - 1] = 0;
251         len = strlen(buf);
252         if (len > 0 && buf[len - 1] == '\n')
253                 buf[len - 1] = 0;
254
255         if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
256                 return -EINVAL;
257
258         if (ac >= IEEE80211_NUM_ACS)
259                 return -EINVAL;
260
261         q_limit_low_old = local->aql_txq_limit_low[ac];
262         q_limit_high_old = local->aql_txq_limit_high[ac];
263
264         local->aql_txq_limit_low[ac] = q_limit_low;
265         local->aql_txq_limit_high[ac] = q_limit_high;
266
267         mutex_lock(&local->sta_mtx);
268         list_for_each_entry(sta, &local->sta_list, list) {
269                 /* If a sta has customized queue limits, keep it */
270                 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
271                     sta->airtime[ac].aql_limit_high == q_limit_high_old) {
272                         sta->airtime[ac].aql_limit_low = q_limit_low;
273                         sta->airtime[ac].aql_limit_high = q_limit_high;
274                 }
275         }
276         mutex_unlock(&local->sta_mtx);
277         return count;
278 }
279
280 static const struct file_operations aql_txq_limit_ops = {
281         .write = aql_txq_limit_write,
282         .read = aql_txq_limit_read,
283         .open = simple_open,
284         .llseek = default_llseek,
285 };
286
287 static ssize_t force_tx_status_read(struct file *file,
288                                     char __user *user_buf,
289                                     size_t count,
290                                     loff_t *ppos)
291 {
292         struct ieee80211_local *local = file->private_data;
293         char buf[3];
294         int len = 0;
295
296         len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
297
298         return simple_read_from_buffer(user_buf, count, ppos,
299                                        buf, len);
300 }
301
302 static ssize_t force_tx_status_write(struct file *file,
303                                      const char __user *user_buf,
304                                      size_t count,
305                                      loff_t *ppos)
306 {
307         struct ieee80211_local *local = file->private_data;
308         char buf[3];
309         size_t len;
310
311         if (count > sizeof(buf))
312                 return -EINVAL;
313
314         if (copy_from_user(buf, user_buf, count))
315                 return -EFAULT;
316
317         buf[sizeof(buf) - 1] = '\0';
318         len = strlen(buf);
319         if (len > 0 && buf[len - 1] == '\n')
320                 buf[len - 1] = 0;
321
322         if (buf[0] == '0' && buf[1] == '\0')
323                 local->force_tx_status = 0;
324         else if (buf[0] == '1' && buf[1] == '\0')
325                 local->force_tx_status = 1;
326         else
327                 return -EINVAL;
328
329         return count;
330 }
331
332 static const struct file_operations force_tx_status_ops = {
333         .write = force_tx_status_write,
334         .read = force_tx_status_read,
335         .open = simple_open,
336         .llseek = default_llseek,
337 };
338
339 #ifdef CONFIG_PM
340 static ssize_t reset_write(struct file *file, const char __user *user_buf,
341                            size_t count, loff_t *ppos)
342 {
343         struct ieee80211_local *local = file->private_data;
344
345         rtnl_lock();
346         __ieee80211_suspend(&local->hw, NULL);
347         __ieee80211_resume(&local->hw);
348         rtnl_unlock();
349
350         return count;
351 }
352
353 static const struct file_operations reset_ops = {
354         .write = reset_write,
355         .open = simple_open,
356         .llseek = noop_llseek,
357 };
358 #endif
359
360 static const char *hw_flag_names[] = {
361 #define FLAG(F) [IEEE80211_HW_##F] = #F
362         FLAG(HAS_RATE_CONTROL),
363         FLAG(RX_INCLUDES_FCS),
364         FLAG(HOST_BROADCAST_PS_BUFFERING),
365         FLAG(SIGNAL_UNSPEC),
366         FLAG(SIGNAL_DBM),
367         FLAG(NEED_DTIM_BEFORE_ASSOC),
368         FLAG(SPECTRUM_MGMT),
369         FLAG(AMPDU_AGGREGATION),
370         FLAG(SUPPORTS_PS),
371         FLAG(PS_NULLFUNC_STACK),
372         FLAG(SUPPORTS_DYNAMIC_PS),
373         FLAG(MFP_CAPABLE),
374         FLAG(WANT_MONITOR_VIF),
375         FLAG(NO_AUTO_VIF),
376         FLAG(SW_CRYPTO_CONTROL),
377         FLAG(SUPPORT_FAST_XMIT),
378         FLAG(REPORTS_TX_ACK_STATUS),
379         FLAG(CONNECTION_MONITOR),
380         FLAG(QUEUE_CONTROL),
381         FLAG(SUPPORTS_PER_STA_GTK),
382         FLAG(AP_LINK_PS),
383         FLAG(TX_AMPDU_SETUP_IN_HW),
384         FLAG(SUPPORTS_RC_TABLE),
385         FLAG(P2P_DEV_ADDR_FOR_INTF),
386         FLAG(TIMING_BEACON_ONLY),
387         FLAG(SUPPORTS_HT_CCK_RATES),
388         FLAG(CHANCTX_STA_CSA),
389         FLAG(SUPPORTS_CLONED_SKBS),
390         FLAG(SINGLE_SCAN_ON_ALL_BANDS),
391         FLAG(TDLS_WIDER_BW),
392         FLAG(SUPPORTS_AMSDU_IN_AMPDU),
393         FLAG(BEACON_TX_STATUS),
394         FLAG(NEEDS_UNIQUE_STA_ADDR),
395         FLAG(SUPPORTS_REORDERING_BUFFER),
396         FLAG(USES_RSS),
397         FLAG(TX_AMSDU),
398         FLAG(TX_FRAG_LIST),
399         FLAG(REPORTS_LOW_ACK),
400         FLAG(SUPPORTS_TX_FRAG),
401         FLAG(SUPPORTS_TDLS_BUFFER_STA),
402         FLAG(DEAUTH_NEED_MGD_TX_PREP),
403         FLAG(DOESNT_SUPPORT_QOS_NDP),
404         FLAG(BUFF_MMPDU_TXQ),
405         FLAG(SUPPORTS_VHT_EXT_NSS_BW),
406         FLAG(STA_MMPDU_TXQ),
407         FLAG(TX_STATUS_NO_AMPDU_LEN),
408         FLAG(SUPPORTS_MULTI_BSSID),
409         FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
410         FLAG(AMPDU_KEYBORDER_SUPPORT),
411         FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
412 #undef FLAG
413 };
414
415 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
416                             size_t count, loff_t *ppos)
417 {
418         struct ieee80211_local *local = file->private_data;
419         size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
420         char *buf = kzalloc(bufsz, GFP_KERNEL);
421         char *pos = buf, *end = buf + bufsz - 1;
422         ssize_t rv;
423         int i;
424
425         if (!buf)
426                 return -ENOMEM;
427
428         /* fail compilation if somebody adds or removes
429          * a flag without updating the name array above
430          */
431         BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
432
433         for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
434                 if (test_bit(i, local->hw.flags))
435                         pos += scnprintf(pos, end - pos, "%s\n",
436                                          hw_flag_names[i]);
437         }
438
439         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
440         kfree(buf);
441         return rv;
442 }
443
444 static ssize_t misc_read(struct file *file, char __user *user_buf,
445                          size_t count, loff_t *ppos)
446 {
447         struct ieee80211_local *local = file->private_data;
448         /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
449         size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
450         char *buf;
451         char *pos, *end;
452         ssize_t rv;
453         int i;
454         int ln;
455
456         buf = kzalloc(bufsz, GFP_KERNEL);
457         if (!buf)
458                 return -ENOMEM;
459
460         pos = buf;
461         end = buf + bufsz - 1;
462
463         pos += scnprintf(pos, end - pos, "pending:\n");
464
465         for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
466                 ln = skb_queue_len(&local->pending[i]);
467                 pos += scnprintf(pos, end - pos, "[%i] %d\n",
468                                  i, ln);
469         }
470
471         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
472         kfree(buf);
473         return rv;
474 }
475
476 static ssize_t queues_read(struct file *file, char __user *user_buf,
477                            size_t count, loff_t *ppos)
478 {
479         struct ieee80211_local *local = file->private_data;
480         unsigned long flags;
481         char buf[IEEE80211_MAX_QUEUES * 20];
482         int q, res = 0;
483
484         spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
485         for (q = 0; q < local->hw.queues; q++)
486                 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
487                                 local->queue_stop_reasons[q],
488                                 skb_queue_len(&local->pending[q]));
489         spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
490
491         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
492 }
493
494 DEBUGFS_READONLY_FILE_OPS(hwflags);
495 DEBUGFS_READONLY_FILE_OPS(queues);
496 DEBUGFS_READONLY_FILE_OPS(misc);
497
498 /* statistics stuff */
499
500 static ssize_t format_devstat_counter(struct ieee80211_local *local,
501         char __user *userbuf,
502         size_t count, loff_t *ppos,
503         int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
504                           int buflen))
505 {
506         struct ieee80211_low_level_stats stats;
507         char buf[20];
508         int res;
509
510         rtnl_lock();
511         res = drv_get_stats(local, &stats);
512         rtnl_unlock();
513         if (res)
514                 return res;
515         res = printvalue(&stats, buf, sizeof(buf));
516         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
517 }
518
519 #define DEBUGFS_DEVSTATS_FILE(name)                                     \
520 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
521                                  char *buf, int buflen)                 \
522 {                                                                       \
523         return scnprintf(buf, buflen, "%u\n", stats->name);             \
524 }                                                                       \
525 static ssize_t stats_ ##name## _read(struct file *file,                 \
526                                      char __user *userbuf,              \
527                                      size_t count, loff_t *ppos)        \
528 {                                                                       \
529         return format_devstat_counter(file->private_data,               \
530                                       userbuf,                          \
531                                       count,                            \
532                                       ppos,                             \
533                                       print_devstats_##name);           \
534 }                                                                       \
535                                                                         \
536 static const struct file_operations stats_ ##name## _ops = {            \
537         .read = stats_ ##name## _read,                                  \
538         .open = simple_open,                                            \
539         .llseek = generic_file_llseek,                                  \
540 };
541
542 #define DEBUGFS_STATS_ADD(name)                                 \
543         debugfs_create_u32(#name, 0400, statsd, &local->name);
544 #define DEBUGFS_DEVSTATS_ADD(name)                                      \
545         debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
546
547 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
548 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
549 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
550 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
551
552 void debugfs_hw_add(struct ieee80211_local *local)
553 {
554         struct dentry *phyd = local->hw.wiphy->debugfsdir;
555         struct dentry *statsd;
556
557         if (!phyd)
558                 return;
559
560         local->debugfs.keys = debugfs_create_dir("keys", phyd);
561
562         DEBUGFS_ADD(total_ps_buffered);
563         DEBUGFS_ADD(wep_iv);
564         DEBUGFS_ADD(rate_ctrl_alg);
565         DEBUGFS_ADD(queues);
566         DEBUGFS_ADD(misc);
567 #ifdef CONFIG_PM
568         DEBUGFS_ADD_MODE(reset, 0200);
569 #endif
570         DEBUGFS_ADD(hwflags);
571         DEBUGFS_ADD(user_power);
572         DEBUGFS_ADD(power);
573         DEBUGFS_ADD(hw_conf);
574         DEBUGFS_ADD_MODE(force_tx_status, 0600);
575
576         if (local->ops->wake_tx_queue)
577                 DEBUGFS_ADD_MODE(aqm, 0600);
578
579         DEBUGFS_ADD_MODE(airtime_flags, 0600);
580
581         DEBUGFS_ADD(aql_txq_limit);
582         debugfs_create_u32("aql_threshold", 0600,
583                            phyd, &local->aql_threshold);
584
585         statsd = debugfs_create_dir("statistics", phyd);
586
587         /* if the dir failed, don't put all the other things into the root! */
588         if (!statsd)
589                 return;
590
591 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
592         DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
593         DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
594         DEBUGFS_STATS_ADD(dot11FailedCount);
595         DEBUGFS_STATS_ADD(dot11RetryCount);
596         DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
597         DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
598         DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
599         DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
600         DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
601         DEBUGFS_STATS_ADD(tx_handlers_drop);
602         DEBUGFS_STATS_ADD(tx_handlers_queued);
603         DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
604         DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
605         DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
606         DEBUGFS_STATS_ADD(rx_handlers_drop);
607         DEBUGFS_STATS_ADD(rx_handlers_queued);
608         DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
609         DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
610         DEBUGFS_STATS_ADD(tx_expand_skb_head);
611         DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
612         DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
613         DEBUGFS_STATS_ADD(rx_handlers_fragments);
614         DEBUGFS_STATS_ADD(tx_status_drop);
615 #endif
616         DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
617         DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
618         DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
619         DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
620 }