Commit | Line | Data |
---|---|---|
e9f207f0 JB |
1 | /* |
2 | * mac80211 debugfs for wireless PHYs | |
3 | * | |
4 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
5 | * | |
6 | * GPLv2 | |
7 | * | |
8 | */ | |
9 | ||
10 | #include <linux/debugfs.h> | |
11 | #include <linux/rtnetlink.h> | |
12 | #include "ieee80211_i.h" | |
13 | #include "ieee80211_rate.h" | |
14 | #include "debugfs.h" | |
15 | ||
16 | int mac80211_open_file_generic(struct inode *inode, struct file *file) | |
17 | { | |
18 | file->private_data = inode->i_private; | |
19 | return 0; | |
20 | } | |
21 | ||
22 | static const char *ieee80211_mode_str(int mode) | |
23 | { | |
24 | switch (mode) { | |
25 | case MODE_IEEE80211A: | |
26 | return "IEEE 802.11a"; | |
27 | case MODE_IEEE80211B: | |
28 | return "IEEE 802.11b"; | |
29 | case MODE_IEEE80211G: | |
30 | return "IEEE 802.11g"; | |
31 | case MODE_ATHEROS_TURBO: | |
32 | return "Atheros Turbo (5 GHz)"; | |
33 | default: | |
34 | return "UNKNOWN"; | |
35 | } | |
36 | } | |
37 | ||
38 | static ssize_t modes_read(struct file *file, char __user *userbuf, | |
39 | size_t count, loff_t *ppos) | |
40 | { | |
41 | struct ieee80211_local *local = file->private_data; | |
42 | struct ieee80211_hw_mode *mode; | |
43 | char buf[150], *p = buf; | |
44 | ||
45 | /* FIXME: locking! */ | |
46 | list_for_each_entry(mode, &local->modes_list, list) { | |
47 | p += scnprintf(p, sizeof(buf)+buf-p, | |
48 | "%s\n", ieee80211_mode_str(mode->mode)); | |
49 | } | |
50 | ||
51 | return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); | |
52 | } | |
53 | ||
54 | static const struct file_operations modes_ops = { | |
55 | .read = modes_read, | |
56 | .open = mac80211_open_file_generic, | |
57 | }; | |
58 | ||
59 | #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ | |
60 | static ssize_t name## _read(struct file *file, char __user *userbuf, \ | |
61 | size_t count, loff_t *ppos) \ | |
62 | { \ | |
63 | struct ieee80211_local *local = file->private_data; \ | |
64 | char buf[buflen]; \ | |
65 | int res; \ | |
66 | \ | |
67 | res = scnprintf(buf, buflen, fmt "\n", ##value); \ | |
68 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ | |
69 | } \ | |
70 | \ | |
71 | static const struct file_operations name## _ops = { \ | |
72 | .read = name## _read, \ | |
73 | .open = mac80211_open_file_generic, \ | |
74 | }; | |
75 | ||
76 | #define DEBUGFS_ADD(name) \ | |
77 | local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \ | |
78 | local, &name## _ops); | |
79 | ||
80 | #define DEBUGFS_DEL(name) \ | |
81 | debugfs_remove(local->debugfs.name); \ | |
82 | local->debugfs.name = NULL; | |
83 | ||
84 | ||
85 | DEBUGFS_READONLY_FILE(channel, 20, "%d", | |
86 | local->hw.conf.channel); | |
87 | DEBUGFS_READONLY_FILE(frequency, 20, "%d", | |
88 | local->hw.conf.freq); | |
89 | DEBUGFS_READONLY_FILE(radar_detect, 20, "%d", | |
90 | local->hw.conf.radar_detect); | |
91 | DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d", | |
92 | local->hw.conf.antenna_sel_tx); | |
93 | DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d", | |
94 | local->hw.conf.antenna_sel_rx); | |
95 | DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d", | |
96 | local->bridge_packets); | |
97 | DEBUGFS_READONLY_FILE(key_tx_rx_threshold, 20, "%d", | |
98 | local->key_tx_rx_threshold); | |
99 | DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", | |
100 | local->rts_threshold); | |
101 | DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", | |
102 | local->fragmentation_threshold); | |
103 | DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", | |
104 | local->short_retry_limit); | |
105 | DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", | |
106 | local->long_retry_limit); | |
107 | DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", | |
108 | local->total_ps_buffered); | |
109 | DEBUGFS_READONLY_FILE(mode, 20, "%s", | |
110 | ieee80211_mode_str(local->hw.conf.phymode)); | |
111 | DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", | |
112 | local->wep_iv & 0xffffff); | |
113 | DEBUGFS_READONLY_FILE(tx_power_reduction, 20, "%d.%d dBm", | |
114 | local->hw.conf.tx_power_reduction / 10, | |
0107136c | 115 | local->hw.conf.tx_power_reduction % 10); |
e9f207f0 JB |
116 | DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", |
117 | local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); | |
118 | ||
119 | /* statistics stuff */ | |
120 | ||
121 | static inline int rtnl_lock_local(struct ieee80211_local *local) | |
122 | { | |
123 | rtnl_lock(); | |
124 | if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) { | |
125 | rtnl_unlock(); | |
126 | return -ENODEV; | |
127 | } | |
128 | return 0; | |
129 | } | |
130 | ||
131 | #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ | |
132 | DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) | |
133 | ||
134 | static ssize_t format_devstat_counter(struct ieee80211_local *local, | |
135 | char __user *userbuf, | |
136 | size_t count, loff_t *ppos, | |
137 | int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, | |
138 | int buflen)) | |
139 | { | |
140 | struct ieee80211_low_level_stats stats; | |
141 | char buf[20]; | |
142 | int res; | |
143 | ||
144 | if (!local->ops->get_stats) | |
145 | return -EOPNOTSUPP; | |
146 | ||
147 | res = rtnl_lock_local(local); | |
148 | if (res) | |
149 | return res; | |
150 | ||
151 | res = local->ops->get_stats(local_to_hw(local), &stats); | |
152 | rtnl_unlock(); | |
153 | if (!res) | |
154 | res = printvalue(&stats, buf, sizeof(buf)); | |
155 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
156 | } | |
157 | ||
158 | #define DEBUGFS_DEVSTATS_FILE(name) \ | |
159 | static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ | |
160 | char *buf, int buflen) \ | |
161 | { \ | |
162 | return scnprintf(buf, buflen, "%u\n", stats->name); \ | |
163 | } \ | |
164 | static ssize_t stats_ ##name## _read(struct file *file, \ | |
165 | char __user *userbuf, \ | |
166 | size_t count, loff_t *ppos) \ | |
167 | { \ | |
168 | return format_devstat_counter(file->private_data, \ | |
169 | userbuf, \ | |
170 | count, \ | |
171 | ppos, \ | |
172 | print_devstats_##name); \ | |
173 | } \ | |
174 | \ | |
175 | static const struct file_operations stats_ ##name## _ops = { \ | |
176 | .read = stats_ ##name## _read, \ | |
177 | .open = mac80211_open_file_generic, \ | |
178 | }; | |
179 | ||
180 | #define DEBUGFS_STATS_ADD(name) \ | |
181 | local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\ | |
182 | local, &stats_ ##name## _ops); | |
183 | ||
184 | #define DEBUGFS_STATS_DEL(name) \ | |
185 | debugfs_remove(local->debugfs.stats.name); \ | |
186 | local->debugfs.stats.name = NULL; | |
187 | ||
188 | DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", | |
189 | local->dot11TransmittedFragmentCount); | |
190 | DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", | |
191 | local->dot11MulticastTransmittedFrameCount); | |
192 | DEBUGFS_STATS_FILE(failed_count, 20, "%u", | |
193 | local->dot11FailedCount); | |
194 | DEBUGFS_STATS_FILE(retry_count, 20, "%u", | |
195 | local->dot11RetryCount); | |
196 | DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", | |
197 | local->dot11MultipleRetryCount); | |
198 | DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", | |
199 | local->dot11FrameDuplicateCount); | |
200 | DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", | |
201 | local->dot11ReceivedFragmentCount); | |
202 | DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", | |
203 | local->dot11MulticastReceivedFrameCount); | |
204 | DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", | |
205 | local->dot11TransmittedFrameCount); | |
206 | DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", | |
207 | local->dot11WEPUndecryptableCount); | |
208 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
209 | DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", | |
210 | local->tx_handlers_drop); | |
211 | DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", | |
212 | local->tx_handlers_queued); | |
213 | DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", | |
214 | local->tx_handlers_drop_unencrypted); | |
215 | DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", | |
216 | local->tx_handlers_drop_fragment); | |
217 | DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", | |
218 | local->tx_handlers_drop_wep); | |
219 | DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", | |
220 | local->tx_handlers_drop_not_assoc); | |
221 | DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", | |
222 | local->tx_handlers_drop_unauth_port); | |
223 | DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", | |
224 | local->rx_handlers_drop); | |
225 | DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", | |
226 | local->rx_handlers_queued); | |
227 | DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", | |
228 | local->rx_handlers_drop_nullfunc); | |
229 | DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", | |
230 | local->rx_handlers_drop_defrag); | |
231 | DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", | |
232 | local->rx_handlers_drop_short); | |
233 | DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", | |
234 | local->rx_handlers_drop_passive_scan); | |
235 | DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", | |
236 | local->tx_expand_skb_head); | |
237 | DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", | |
238 | local->tx_expand_skb_head_cloned); | |
239 | DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", | |
240 | local->rx_expand_skb_head); | |
241 | DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", | |
242 | local->rx_expand_skb_head2); | |
243 | DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", | |
244 | local->rx_handlers_fragments); | |
245 | DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", | |
246 | local->tx_status_drop); | |
247 | ||
248 | static ssize_t stats_wme_rx_queue_read(struct file *file, | |
249 | char __user *userbuf, | |
250 | size_t count, loff_t *ppos) | |
251 | { | |
252 | struct ieee80211_local *local = file->private_data; | |
253 | char buf[NUM_RX_DATA_QUEUES*15], *p = buf; | |
254 | int i; | |
255 | ||
256 | for (i = 0; i < NUM_RX_DATA_QUEUES; i++) | |
257 | p += scnprintf(p, sizeof(buf)+buf-p, | |
258 | "%u\n", local->wme_rx_queue[i]); | |
259 | ||
260 | return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); | |
261 | } | |
262 | ||
263 | static const struct file_operations stats_wme_rx_queue_ops = { | |
264 | .read = stats_wme_rx_queue_read, | |
265 | .open = mac80211_open_file_generic, | |
266 | }; | |
267 | ||
268 | static ssize_t stats_wme_tx_queue_read(struct file *file, | |
269 | char __user *userbuf, | |
270 | size_t count, loff_t *ppos) | |
271 | { | |
272 | struct ieee80211_local *local = file->private_data; | |
273 | char buf[NUM_TX_DATA_QUEUES*15], *p = buf; | |
274 | int i; | |
275 | ||
276 | for (i = 0; i < NUM_TX_DATA_QUEUES; i++) | |
277 | p += scnprintf(p, sizeof(buf)+buf-p, | |
278 | "%u\n", local->wme_tx_queue[i]); | |
279 | ||
280 | return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); | |
281 | } | |
282 | ||
283 | static const struct file_operations stats_wme_tx_queue_ops = { | |
284 | .read = stats_wme_tx_queue_read, | |
285 | .open = mac80211_open_file_generic, | |
286 | }; | |
287 | #endif | |
288 | ||
289 | DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); | |
290 | DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); | |
291 | DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); | |
292 | DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); | |
293 | ||
294 | ||
295 | void debugfs_hw_add(struct ieee80211_local *local) | |
296 | { | |
297 | struct dentry *phyd = local->hw.wiphy->debugfsdir; | |
298 | struct dentry *statsd; | |
299 | ||
300 | if (!phyd) | |
301 | return; | |
302 | ||
303 | local->debugfs.stations = debugfs_create_dir("stations", phyd); | |
304 | local->debugfs.keys = debugfs_create_dir("keys", phyd); | |
305 | ||
306 | DEBUGFS_ADD(channel); | |
307 | DEBUGFS_ADD(frequency); | |
308 | DEBUGFS_ADD(radar_detect); | |
309 | DEBUGFS_ADD(antenna_sel_tx); | |
310 | DEBUGFS_ADD(antenna_sel_rx); | |
311 | DEBUGFS_ADD(bridge_packets); | |
312 | DEBUGFS_ADD(key_tx_rx_threshold); | |
313 | DEBUGFS_ADD(rts_threshold); | |
314 | DEBUGFS_ADD(fragmentation_threshold); | |
315 | DEBUGFS_ADD(short_retry_limit); | |
316 | DEBUGFS_ADD(long_retry_limit); | |
317 | DEBUGFS_ADD(total_ps_buffered); | |
318 | DEBUGFS_ADD(mode); | |
319 | DEBUGFS_ADD(wep_iv); | |
320 | DEBUGFS_ADD(tx_power_reduction); | |
321 | DEBUGFS_ADD(modes); | |
322 | ||
323 | statsd = debugfs_create_dir("statistics", phyd); | |
324 | local->debugfs.statistics = statsd; | |
325 | ||
326 | /* if the dir failed, don't put all the other things into the root! */ | |
327 | if (!statsd) | |
328 | return; | |
329 | ||
330 | DEBUGFS_STATS_ADD(transmitted_fragment_count); | |
331 | DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); | |
332 | DEBUGFS_STATS_ADD(failed_count); | |
333 | DEBUGFS_STATS_ADD(retry_count); | |
334 | DEBUGFS_STATS_ADD(multiple_retry_count); | |
335 | DEBUGFS_STATS_ADD(frame_duplicate_count); | |
336 | DEBUGFS_STATS_ADD(received_fragment_count); | |
337 | DEBUGFS_STATS_ADD(multicast_received_frame_count); | |
338 | DEBUGFS_STATS_ADD(transmitted_frame_count); | |
339 | DEBUGFS_STATS_ADD(wep_undecryptable_count); | |
340 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
341 | DEBUGFS_STATS_ADD(tx_handlers_drop); | |
342 | DEBUGFS_STATS_ADD(tx_handlers_queued); | |
343 | DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); | |
344 | DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); | |
345 | DEBUGFS_STATS_ADD(tx_handlers_drop_wep); | |
346 | DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); | |
347 | DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); | |
348 | DEBUGFS_STATS_ADD(rx_handlers_drop); | |
349 | DEBUGFS_STATS_ADD(rx_handlers_queued); | |
350 | DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); | |
351 | DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); | |
352 | DEBUGFS_STATS_ADD(rx_handlers_drop_short); | |
353 | DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); | |
354 | DEBUGFS_STATS_ADD(tx_expand_skb_head); | |
355 | DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); | |
356 | DEBUGFS_STATS_ADD(rx_expand_skb_head); | |
357 | DEBUGFS_STATS_ADD(rx_expand_skb_head2); | |
358 | DEBUGFS_STATS_ADD(rx_handlers_fragments); | |
359 | DEBUGFS_STATS_ADD(tx_status_drop); | |
360 | DEBUGFS_STATS_ADD(wme_tx_queue); | |
361 | DEBUGFS_STATS_ADD(wme_rx_queue); | |
362 | #endif | |
363 | DEBUGFS_STATS_ADD(dot11ACKFailureCount); | |
364 | DEBUGFS_STATS_ADD(dot11RTSFailureCount); | |
365 | DEBUGFS_STATS_ADD(dot11FCSErrorCount); | |
366 | DEBUGFS_STATS_ADD(dot11RTSSuccessCount); | |
367 | } | |
368 | ||
369 | void debugfs_hw_del(struct ieee80211_local *local) | |
370 | { | |
371 | DEBUGFS_DEL(channel); | |
372 | DEBUGFS_DEL(frequency); | |
373 | DEBUGFS_DEL(radar_detect); | |
374 | DEBUGFS_DEL(antenna_sel_tx); | |
375 | DEBUGFS_DEL(antenna_sel_rx); | |
376 | DEBUGFS_DEL(bridge_packets); | |
377 | DEBUGFS_DEL(key_tx_rx_threshold); | |
378 | DEBUGFS_DEL(rts_threshold); | |
379 | DEBUGFS_DEL(fragmentation_threshold); | |
380 | DEBUGFS_DEL(short_retry_limit); | |
381 | DEBUGFS_DEL(long_retry_limit); | |
382 | DEBUGFS_DEL(total_ps_buffered); | |
383 | DEBUGFS_DEL(mode); | |
384 | DEBUGFS_DEL(wep_iv); | |
385 | DEBUGFS_DEL(tx_power_reduction); | |
386 | DEBUGFS_DEL(modes); | |
387 | ||
388 | DEBUGFS_STATS_DEL(transmitted_fragment_count); | |
389 | DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); | |
390 | DEBUGFS_STATS_DEL(failed_count); | |
391 | DEBUGFS_STATS_DEL(retry_count); | |
392 | DEBUGFS_STATS_DEL(multiple_retry_count); | |
393 | DEBUGFS_STATS_DEL(frame_duplicate_count); | |
394 | DEBUGFS_STATS_DEL(received_fragment_count); | |
395 | DEBUGFS_STATS_DEL(multicast_received_frame_count); | |
396 | DEBUGFS_STATS_DEL(transmitted_frame_count); | |
397 | DEBUGFS_STATS_DEL(wep_undecryptable_count); | |
398 | DEBUGFS_STATS_DEL(num_scans); | |
399 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
400 | DEBUGFS_STATS_DEL(tx_handlers_drop); | |
401 | DEBUGFS_STATS_DEL(tx_handlers_queued); | |
402 | DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); | |
403 | DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); | |
404 | DEBUGFS_STATS_DEL(tx_handlers_drop_wep); | |
405 | DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); | |
406 | DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); | |
407 | DEBUGFS_STATS_DEL(rx_handlers_drop); | |
408 | DEBUGFS_STATS_DEL(rx_handlers_queued); | |
409 | DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); | |
410 | DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); | |
411 | DEBUGFS_STATS_DEL(rx_handlers_drop_short); | |
412 | DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); | |
413 | DEBUGFS_STATS_DEL(tx_expand_skb_head); | |
414 | DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); | |
415 | DEBUGFS_STATS_DEL(rx_expand_skb_head); | |
416 | DEBUGFS_STATS_DEL(rx_expand_skb_head2); | |
417 | DEBUGFS_STATS_DEL(rx_handlers_fragments); | |
418 | DEBUGFS_STATS_DEL(tx_status_drop); | |
419 | DEBUGFS_STATS_DEL(wme_tx_queue); | |
420 | DEBUGFS_STATS_DEL(wme_rx_queue); | |
421 | #endif | |
422 | DEBUGFS_STATS_DEL(dot11ACKFailureCount); | |
423 | DEBUGFS_STATS_DEL(dot11RTSFailureCount); | |
424 | DEBUGFS_STATS_DEL(dot11FCSErrorCount); | |
425 | DEBUGFS_STATS_DEL(dot11RTSSuccessCount); | |
426 | ||
427 | debugfs_remove(local->debugfs.statistics); | |
428 | local->debugfs.statistics = NULL; | |
429 | debugfs_remove(local->debugfs.stations); | |
430 | local->debugfs.stations = NULL; | |
431 | debugfs_remove(local->debugfs.keys); | |
432 | local->debugfs.keys = NULL; | |
433 | } |