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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" | |
2c8dccc7 | 13 | #include "rate.h" |
e9f207f0 JB |
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 | ||
e9f207f0 JB |
22 | #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ |
23 | static ssize_t name## _read(struct file *file, char __user *userbuf, \ | |
24 | size_t count, loff_t *ppos) \ | |
25 | { \ | |
26 | struct ieee80211_local *local = file->private_data; \ | |
27 | char buf[buflen]; \ | |
28 | int res; \ | |
29 | \ | |
30 | res = scnprintf(buf, buflen, fmt "\n", ##value); \ | |
31 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ | |
32 | } \ | |
33 | \ | |
34 | static const struct file_operations name## _ops = { \ | |
35 | .read = name## _read, \ | |
36 | .open = mac80211_open_file_generic, \ | |
37 | }; | |
38 | ||
39 | #define DEBUGFS_ADD(name) \ | |
bebb8a5e | 40 | local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \ |
e9f207f0 JB |
41 | local, &name## _ops); |
42 | ||
43 | #define DEBUGFS_DEL(name) \ | |
44 | debugfs_remove(local->debugfs.name); \ | |
45 | local->debugfs.name = NULL; | |
46 | ||
47 | ||
e9f207f0 | 48 | DEBUGFS_READONLY_FILE(frequency, 20, "%d", |
8318d78a | 49 | local->hw.conf.channel->center_freq); |
e9f207f0 JB |
50 | DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d", |
51 | local->hw.conf.antenna_sel_tx); | |
52 | DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d", | |
53 | local->hw.conf.antenna_sel_rx); | |
54 | DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d", | |
55 | local->bridge_packets); | |
e9f207f0 JB |
56 | DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", |
57 | local->rts_threshold); | |
58 | DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", | |
59 | local->fragmentation_threshold); | |
60 | DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", | |
61 | local->short_retry_limit); | |
62 | DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", | |
63 | local->long_retry_limit); | |
64 | DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", | |
65 | local->total_ps_buffered); | |
e9f207f0 JB |
66 | DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", |
67 | local->wep_iv & 0xffffff); | |
e9f207f0 JB |
68 | DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", |
69 | local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); | |
70 | ||
71 | /* statistics stuff */ | |
72 | ||
73 | static inline int rtnl_lock_local(struct ieee80211_local *local) | |
74 | { | |
75 | rtnl_lock(); | |
76 | if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) { | |
77 | rtnl_unlock(); | |
78 | return -ENODEV; | |
79 | } | |
80 | return 0; | |
81 | } | |
82 | ||
83 | #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ | |
84 | DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) | |
85 | ||
86 | static ssize_t format_devstat_counter(struct ieee80211_local *local, | |
87 | char __user *userbuf, | |
88 | size_t count, loff_t *ppos, | |
89 | int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, | |
90 | int buflen)) | |
91 | { | |
92 | struct ieee80211_low_level_stats stats; | |
93 | char buf[20]; | |
94 | int res; | |
95 | ||
96 | if (!local->ops->get_stats) | |
97 | return -EOPNOTSUPP; | |
98 | ||
99 | res = rtnl_lock_local(local); | |
100 | if (res) | |
101 | return res; | |
102 | ||
103 | res = local->ops->get_stats(local_to_hw(local), &stats); | |
104 | rtnl_unlock(); | |
105 | if (!res) | |
106 | res = printvalue(&stats, buf, sizeof(buf)); | |
107 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
108 | } | |
109 | ||
110 | #define DEBUGFS_DEVSTATS_FILE(name) \ | |
111 | static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ | |
112 | char *buf, int buflen) \ | |
113 | { \ | |
114 | return scnprintf(buf, buflen, "%u\n", stats->name); \ | |
115 | } \ | |
116 | static ssize_t stats_ ##name## _read(struct file *file, \ | |
117 | char __user *userbuf, \ | |
118 | size_t count, loff_t *ppos) \ | |
119 | { \ | |
120 | return format_devstat_counter(file->private_data, \ | |
121 | userbuf, \ | |
122 | count, \ | |
123 | ppos, \ | |
124 | print_devstats_##name); \ | |
125 | } \ | |
126 | \ | |
127 | static const struct file_operations stats_ ##name## _ops = { \ | |
128 | .read = stats_ ##name## _read, \ | |
129 | .open = mac80211_open_file_generic, \ | |
130 | }; | |
131 | ||
132 | #define DEBUGFS_STATS_ADD(name) \ | |
bebb8a5e | 133 | local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\ |
e9f207f0 JB |
134 | local, &stats_ ##name## _ops); |
135 | ||
136 | #define DEBUGFS_STATS_DEL(name) \ | |
137 | debugfs_remove(local->debugfs.stats.name); \ | |
138 | local->debugfs.stats.name = NULL; | |
139 | ||
140 | DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", | |
141 | local->dot11TransmittedFragmentCount); | |
142 | DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", | |
143 | local->dot11MulticastTransmittedFrameCount); | |
144 | DEBUGFS_STATS_FILE(failed_count, 20, "%u", | |
145 | local->dot11FailedCount); | |
146 | DEBUGFS_STATS_FILE(retry_count, 20, "%u", | |
147 | local->dot11RetryCount); | |
148 | DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", | |
149 | local->dot11MultipleRetryCount); | |
150 | DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", | |
151 | local->dot11FrameDuplicateCount); | |
152 | DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", | |
153 | local->dot11ReceivedFragmentCount); | |
154 | DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", | |
155 | local->dot11MulticastReceivedFrameCount); | |
156 | DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", | |
157 | local->dot11TransmittedFrameCount); | |
158 | DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", | |
159 | local->dot11WEPUndecryptableCount); | |
160 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
161 | DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", | |
162 | local->tx_handlers_drop); | |
163 | DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", | |
164 | local->tx_handlers_queued); | |
165 | DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", | |
166 | local->tx_handlers_drop_unencrypted); | |
167 | DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", | |
168 | local->tx_handlers_drop_fragment); | |
169 | DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", | |
170 | local->tx_handlers_drop_wep); | |
171 | DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", | |
172 | local->tx_handlers_drop_not_assoc); | |
173 | DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", | |
174 | local->tx_handlers_drop_unauth_port); | |
175 | DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", | |
176 | local->rx_handlers_drop); | |
177 | DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", | |
178 | local->rx_handlers_queued); | |
179 | DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", | |
180 | local->rx_handlers_drop_nullfunc); | |
181 | DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", | |
182 | local->rx_handlers_drop_defrag); | |
183 | DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", | |
184 | local->rx_handlers_drop_short); | |
185 | DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", | |
186 | local->rx_handlers_drop_passive_scan); | |
187 | DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", | |
188 | local->tx_expand_skb_head); | |
189 | DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", | |
190 | local->tx_expand_skb_head_cloned); | |
191 | DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", | |
192 | local->rx_expand_skb_head); | |
193 | DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", | |
194 | local->rx_expand_skb_head2); | |
195 | DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", | |
196 | local->rx_handlers_fragments); | |
197 | DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", | |
198 | local->tx_status_drop); | |
199 | ||
e9f207f0 JB |
200 | #endif |
201 | ||
202 | DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); | |
203 | DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); | |
204 | DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); | |
205 | DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); | |
206 | ||
207 | ||
208 | void debugfs_hw_add(struct ieee80211_local *local) | |
209 | { | |
210 | struct dentry *phyd = local->hw.wiphy->debugfsdir; | |
211 | struct dentry *statsd; | |
212 | ||
213 | if (!phyd) | |
214 | return; | |
215 | ||
216 | local->debugfs.stations = debugfs_create_dir("stations", phyd); | |
217 | local->debugfs.keys = debugfs_create_dir("keys", phyd); | |
218 | ||
e9f207f0 | 219 | DEBUGFS_ADD(frequency); |
e9f207f0 JB |
220 | DEBUGFS_ADD(antenna_sel_tx); |
221 | DEBUGFS_ADD(antenna_sel_rx); | |
222 | DEBUGFS_ADD(bridge_packets); | |
e9f207f0 JB |
223 | DEBUGFS_ADD(rts_threshold); |
224 | DEBUGFS_ADD(fragmentation_threshold); | |
225 | DEBUGFS_ADD(short_retry_limit); | |
226 | DEBUGFS_ADD(long_retry_limit); | |
227 | DEBUGFS_ADD(total_ps_buffered); | |
e9f207f0 | 228 | DEBUGFS_ADD(wep_iv); |
e9f207f0 JB |
229 | |
230 | statsd = debugfs_create_dir("statistics", phyd); | |
231 | local->debugfs.statistics = statsd; | |
232 | ||
233 | /* if the dir failed, don't put all the other things into the root! */ | |
234 | if (!statsd) | |
235 | return; | |
236 | ||
237 | DEBUGFS_STATS_ADD(transmitted_fragment_count); | |
238 | DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); | |
239 | DEBUGFS_STATS_ADD(failed_count); | |
240 | DEBUGFS_STATS_ADD(retry_count); | |
241 | DEBUGFS_STATS_ADD(multiple_retry_count); | |
242 | DEBUGFS_STATS_ADD(frame_duplicate_count); | |
243 | DEBUGFS_STATS_ADD(received_fragment_count); | |
244 | DEBUGFS_STATS_ADD(multicast_received_frame_count); | |
245 | DEBUGFS_STATS_ADD(transmitted_frame_count); | |
246 | DEBUGFS_STATS_ADD(wep_undecryptable_count); | |
247 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
248 | DEBUGFS_STATS_ADD(tx_handlers_drop); | |
249 | DEBUGFS_STATS_ADD(tx_handlers_queued); | |
250 | DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); | |
251 | DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); | |
252 | DEBUGFS_STATS_ADD(tx_handlers_drop_wep); | |
253 | DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); | |
254 | DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); | |
255 | DEBUGFS_STATS_ADD(rx_handlers_drop); | |
256 | DEBUGFS_STATS_ADD(rx_handlers_queued); | |
257 | DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); | |
258 | DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); | |
259 | DEBUGFS_STATS_ADD(rx_handlers_drop_short); | |
260 | DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); | |
261 | DEBUGFS_STATS_ADD(tx_expand_skb_head); | |
262 | DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); | |
263 | DEBUGFS_STATS_ADD(rx_expand_skb_head); | |
264 | DEBUGFS_STATS_ADD(rx_expand_skb_head2); | |
265 | DEBUGFS_STATS_ADD(rx_handlers_fragments); | |
266 | DEBUGFS_STATS_ADD(tx_status_drop); | |
e9f207f0 JB |
267 | #endif |
268 | DEBUGFS_STATS_ADD(dot11ACKFailureCount); | |
269 | DEBUGFS_STATS_ADD(dot11RTSFailureCount); | |
270 | DEBUGFS_STATS_ADD(dot11FCSErrorCount); | |
271 | DEBUGFS_STATS_ADD(dot11RTSSuccessCount); | |
272 | } | |
273 | ||
274 | void debugfs_hw_del(struct ieee80211_local *local) | |
275 | { | |
e9f207f0 | 276 | DEBUGFS_DEL(frequency); |
e9f207f0 JB |
277 | DEBUGFS_DEL(antenna_sel_tx); |
278 | DEBUGFS_DEL(antenna_sel_rx); | |
279 | DEBUGFS_DEL(bridge_packets); | |
e9f207f0 JB |
280 | DEBUGFS_DEL(rts_threshold); |
281 | DEBUGFS_DEL(fragmentation_threshold); | |
282 | DEBUGFS_DEL(short_retry_limit); | |
283 | DEBUGFS_DEL(long_retry_limit); | |
284 | DEBUGFS_DEL(total_ps_buffered); | |
e9f207f0 | 285 | DEBUGFS_DEL(wep_iv); |
e9f207f0 JB |
286 | |
287 | DEBUGFS_STATS_DEL(transmitted_fragment_count); | |
288 | DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); | |
289 | DEBUGFS_STATS_DEL(failed_count); | |
290 | DEBUGFS_STATS_DEL(retry_count); | |
291 | DEBUGFS_STATS_DEL(multiple_retry_count); | |
292 | DEBUGFS_STATS_DEL(frame_duplicate_count); | |
293 | DEBUGFS_STATS_DEL(received_fragment_count); | |
294 | DEBUGFS_STATS_DEL(multicast_received_frame_count); | |
295 | DEBUGFS_STATS_DEL(transmitted_frame_count); | |
296 | DEBUGFS_STATS_DEL(wep_undecryptable_count); | |
297 | DEBUGFS_STATS_DEL(num_scans); | |
298 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
299 | DEBUGFS_STATS_DEL(tx_handlers_drop); | |
300 | DEBUGFS_STATS_DEL(tx_handlers_queued); | |
301 | DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); | |
302 | DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); | |
303 | DEBUGFS_STATS_DEL(tx_handlers_drop_wep); | |
304 | DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); | |
305 | DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); | |
306 | DEBUGFS_STATS_DEL(rx_handlers_drop); | |
307 | DEBUGFS_STATS_DEL(rx_handlers_queued); | |
308 | DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); | |
309 | DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); | |
310 | DEBUGFS_STATS_DEL(rx_handlers_drop_short); | |
311 | DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); | |
312 | DEBUGFS_STATS_DEL(tx_expand_skb_head); | |
313 | DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); | |
314 | DEBUGFS_STATS_DEL(rx_expand_skb_head); | |
315 | DEBUGFS_STATS_DEL(rx_expand_skb_head2); | |
316 | DEBUGFS_STATS_DEL(rx_handlers_fragments); | |
317 | DEBUGFS_STATS_DEL(tx_status_drop); | |
e9f207f0 JB |
318 | #endif |
319 | DEBUGFS_STATS_DEL(dot11ACKFailureCount); | |
320 | DEBUGFS_STATS_DEL(dot11RTSFailureCount); | |
321 | DEBUGFS_STATS_DEL(dot11FCSErrorCount); | |
322 | DEBUGFS_STATS_DEL(dot11RTSSuccessCount); | |
323 | ||
324 | debugfs_remove(local->debugfs.statistics); | |
325 | local->debugfs.statistics = NULL; | |
326 | debugfs_remove(local->debugfs.stations); | |
327 | local->debugfs.stations = NULL; | |
328 | debugfs_remove(local->debugfs.keys); | |
329 | local->debugfs.keys = NULL; | |
330 | } |