Merge branch 'topic/pcxhr-update' into to-push
[deliverable/linux.git] / net / mac80211 / debugfs.c
CommitLineData
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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"
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14#include "debugfs.h"
15
16int mac80211_open_file_generic(struct inode *inode, struct file *file)
17{
18 file->private_data = inode->i_private;
19 return 0;
20}
21
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22#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
23static 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 \
34static 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, \
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41 local, &name## _ops);
42
43#define DEBUGFS_DEL(name) \
44 debugfs_remove(local->debugfs.name); \
45 local->debugfs.name = NULL;
46
47
e9f207f0 48DEBUGFS_READONLY_FILE(frequency, 20, "%d",
8318d78a 49 local->hw.conf.channel->center_freq);
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50DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
51 local->hw.conf.antenna_sel_tx);
52DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
53 local->hw.conf.antenna_sel_rx);
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54DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
55 local->rts_threshold);
56DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
57 local->fragmentation_threshold);
58DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
59 local->short_retry_limit);
60DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
61 local->long_retry_limit);
62DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
63 local->total_ps_buffered);
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64DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
65 local->wep_iv & 0xffffff);
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66DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
67 local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
68
69/* statistics stuff */
70
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71#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
72 DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
73
74static ssize_t format_devstat_counter(struct ieee80211_local *local,
75 char __user *userbuf,
76 size_t count, loff_t *ppos,
77 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
78 int buflen))
79{
80 struct ieee80211_low_level_stats stats;
81 char buf[20];
82 int res;
83
84 if (!local->ops->get_stats)
85 return -EOPNOTSUPP;
86
75636525 87 rtnl_lock();
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88 res = local->ops->get_stats(local_to_hw(local), &stats);
89 rtnl_unlock();
90 if (!res)
91 res = printvalue(&stats, buf, sizeof(buf));
92 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
93}
94
95#define DEBUGFS_DEVSTATS_FILE(name) \
96static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
97 char *buf, int buflen) \
98{ \
99 return scnprintf(buf, buflen, "%u\n", stats->name); \
100} \
101static ssize_t stats_ ##name## _read(struct file *file, \
102 char __user *userbuf, \
103 size_t count, loff_t *ppos) \
104{ \
105 return format_devstat_counter(file->private_data, \
106 userbuf, \
107 count, \
108 ppos, \
109 print_devstats_##name); \
110} \
111 \
112static const struct file_operations stats_ ##name## _ops = { \
113 .read = stats_ ##name## _read, \
114 .open = mac80211_open_file_generic, \
115};
116
117#define DEBUGFS_STATS_ADD(name) \
bebb8a5e 118 local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
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119 local, &stats_ ##name## _ops);
120
121#define DEBUGFS_STATS_DEL(name) \
122 debugfs_remove(local->debugfs.stats.name); \
123 local->debugfs.stats.name = NULL;
124
125DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
126 local->dot11TransmittedFragmentCount);
127DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
128 local->dot11MulticastTransmittedFrameCount);
129DEBUGFS_STATS_FILE(failed_count, 20, "%u",
130 local->dot11FailedCount);
131DEBUGFS_STATS_FILE(retry_count, 20, "%u",
132 local->dot11RetryCount);
133DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
134 local->dot11MultipleRetryCount);
135DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
136 local->dot11FrameDuplicateCount);
137DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
138 local->dot11ReceivedFragmentCount);
139DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
140 local->dot11MulticastReceivedFrameCount);
141DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
142 local->dot11TransmittedFrameCount);
143DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
144 local->dot11WEPUndecryptableCount);
145#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
146DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
147 local->tx_handlers_drop);
148DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
149 local->tx_handlers_queued);
150DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
151 local->tx_handlers_drop_unencrypted);
152DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
153 local->tx_handlers_drop_fragment);
154DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
155 local->tx_handlers_drop_wep);
156DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
157 local->tx_handlers_drop_not_assoc);
158DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
159 local->tx_handlers_drop_unauth_port);
160DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
161 local->rx_handlers_drop);
162DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
163 local->rx_handlers_queued);
164DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
165 local->rx_handlers_drop_nullfunc);
166DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
167 local->rx_handlers_drop_defrag);
168DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
169 local->rx_handlers_drop_short);
170DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
171 local->rx_handlers_drop_passive_scan);
172DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
173 local->tx_expand_skb_head);
174DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
175 local->tx_expand_skb_head_cloned);
176DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
177 local->rx_expand_skb_head);
178DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
179 local->rx_expand_skb_head2);
180DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
181 local->rx_handlers_fragments);
182DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
183 local->tx_status_drop);
184
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185#endif
186
187DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
188DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
189DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
190DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
191
192
193void debugfs_hw_add(struct ieee80211_local *local)
194{
195 struct dentry *phyd = local->hw.wiphy->debugfsdir;
196 struct dentry *statsd;
197
198 if (!phyd)
199 return;
200
201 local->debugfs.stations = debugfs_create_dir("stations", phyd);
202 local->debugfs.keys = debugfs_create_dir("keys", phyd);
203
e9f207f0 204 DEBUGFS_ADD(frequency);
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205 DEBUGFS_ADD(antenna_sel_tx);
206 DEBUGFS_ADD(antenna_sel_rx);
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207 DEBUGFS_ADD(rts_threshold);
208 DEBUGFS_ADD(fragmentation_threshold);
209 DEBUGFS_ADD(short_retry_limit);
210 DEBUGFS_ADD(long_retry_limit);
211 DEBUGFS_ADD(total_ps_buffered);
e9f207f0 212 DEBUGFS_ADD(wep_iv);
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213
214 statsd = debugfs_create_dir("statistics", phyd);
215 local->debugfs.statistics = statsd;
216
217 /* if the dir failed, don't put all the other things into the root! */
218 if (!statsd)
219 return;
220
221 DEBUGFS_STATS_ADD(transmitted_fragment_count);
222 DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
223 DEBUGFS_STATS_ADD(failed_count);
224 DEBUGFS_STATS_ADD(retry_count);
225 DEBUGFS_STATS_ADD(multiple_retry_count);
226 DEBUGFS_STATS_ADD(frame_duplicate_count);
227 DEBUGFS_STATS_ADD(received_fragment_count);
228 DEBUGFS_STATS_ADD(multicast_received_frame_count);
229 DEBUGFS_STATS_ADD(transmitted_frame_count);
230 DEBUGFS_STATS_ADD(wep_undecryptable_count);
231#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
232 DEBUGFS_STATS_ADD(tx_handlers_drop);
233 DEBUGFS_STATS_ADD(tx_handlers_queued);
234 DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
235 DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
236 DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
237 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
238 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
239 DEBUGFS_STATS_ADD(rx_handlers_drop);
240 DEBUGFS_STATS_ADD(rx_handlers_queued);
241 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
242 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
243 DEBUGFS_STATS_ADD(rx_handlers_drop_short);
244 DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
245 DEBUGFS_STATS_ADD(tx_expand_skb_head);
246 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
247 DEBUGFS_STATS_ADD(rx_expand_skb_head);
248 DEBUGFS_STATS_ADD(rx_expand_skb_head2);
249 DEBUGFS_STATS_ADD(rx_handlers_fragments);
250 DEBUGFS_STATS_ADD(tx_status_drop);
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251#endif
252 DEBUGFS_STATS_ADD(dot11ACKFailureCount);
253 DEBUGFS_STATS_ADD(dot11RTSFailureCount);
254 DEBUGFS_STATS_ADD(dot11FCSErrorCount);
255 DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
256}
257
258void debugfs_hw_del(struct ieee80211_local *local)
259{
e9f207f0 260 DEBUGFS_DEL(frequency);
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261 DEBUGFS_DEL(antenna_sel_tx);
262 DEBUGFS_DEL(antenna_sel_rx);
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263 DEBUGFS_DEL(rts_threshold);
264 DEBUGFS_DEL(fragmentation_threshold);
265 DEBUGFS_DEL(short_retry_limit);
266 DEBUGFS_DEL(long_retry_limit);
267 DEBUGFS_DEL(total_ps_buffered);
e9f207f0 268 DEBUGFS_DEL(wep_iv);
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269
270 DEBUGFS_STATS_DEL(transmitted_fragment_count);
271 DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
272 DEBUGFS_STATS_DEL(failed_count);
273 DEBUGFS_STATS_DEL(retry_count);
274 DEBUGFS_STATS_DEL(multiple_retry_count);
275 DEBUGFS_STATS_DEL(frame_duplicate_count);
276 DEBUGFS_STATS_DEL(received_fragment_count);
277 DEBUGFS_STATS_DEL(multicast_received_frame_count);
278 DEBUGFS_STATS_DEL(transmitted_frame_count);
279 DEBUGFS_STATS_DEL(wep_undecryptable_count);
280 DEBUGFS_STATS_DEL(num_scans);
281#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
282 DEBUGFS_STATS_DEL(tx_handlers_drop);
283 DEBUGFS_STATS_DEL(tx_handlers_queued);
284 DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
285 DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
286 DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
287 DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
288 DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
289 DEBUGFS_STATS_DEL(rx_handlers_drop);
290 DEBUGFS_STATS_DEL(rx_handlers_queued);
291 DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
292 DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
293 DEBUGFS_STATS_DEL(rx_handlers_drop_short);
294 DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
295 DEBUGFS_STATS_DEL(tx_expand_skb_head);
296 DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
297 DEBUGFS_STATS_DEL(rx_expand_skb_head);
298 DEBUGFS_STATS_DEL(rx_expand_skb_head2);
299 DEBUGFS_STATS_DEL(rx_handlers_fragments);
300 DEBUGFS_STATS_DEL(tx_status_drop);
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301#endif
302 DEBUGFS_STATS_DEL(dot11ACKFailureCount);
303 DEBUGFS_STATS_DEL(dot11RTSFailureCount);
304 DEBUGFS_STATS_DEL(dot11FCSErrorCount);
305 DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
306
307 debugfs_remove(local->debugfs.statistics);
308 local->debugfs.statistics = NULL;
309 debugfs_remove(local->debugfs.stations);
310 local->debugfs.stations = NULL;
311 debugfs_remove(local->debugfs.keys);
312 local->debugfs.keys = NULL;
313}
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