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