2 * mac80211 debugfs for wireless PHYs
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
10 #include <linux/debugfs.h>
11 #include <linux/rtnetlink.h>
12 #include "ieee80211_i.h"
16 int mac80211_open_file_generic(struct inode
*inode
, struct file
*file
)
18 file
->private_data
= inode
->i_private
;
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) \
26 struct ieee80211_local *local = file->private_data; \
30 res = scnprintf(buf, buflen, fmt "\n", ##value); \
31 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
34 static const struct file_operations name## _ops = { \
35 .read = name## _read, \
36 .open = mac80211_open_file_generic, \
39 #define DEBUGFS_ADD(name) \
40 local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \
43 #define DEBUGFS_DEL(name) \
44 debugfs_remove(local->debugfs.name); \
45 local->debugfs.name = NULL;
48 DEBUGFS_READONLY_FILE(frequency
, 20, "%d",
49 local
->hw
.conf
.channel
->center_freq
);
50 DEBUGFS_READONLY_FILE(rts_threshold
, 20, "%d",
51 local
->rts_threshold
);
52 DEBUGFS_READONLY_FILE(fragmentation_threshold
, 20, "%d",
53 local
->fragmentation_threshold
);
54 DEBUGFS_READONLY_FILE(short_retry_limit
, 20, "%d",
55 local
->hw
.conf
.short_frame_max_tx_count
);
56 DEBUGFS_READONLY_FILE(long_retry_limit
, 20, "%d",
57 local
->hw
.conf
.long_frame_max_tx_count
);
58 DEBUGFS_READONLY_FILE(total_ps_buffered
, 20, "%d",
59 local
->total_ps_buffered
);
60 DEBUGFS_READONLY_FILE(wep_iv
, 20, "%#08x",
61 local
->wep_iv
& 0xffffff);
62 DEBUGFS_READONLY_FILE(rate_ctrl_alg
, 100, "%s",
63 local
->rate_ctrl
? local
->rate_ctrl
->ops
->name
: "<unset>");
65 static ssize_t
tsf_read(struct file
*file
, char __user
*user_buf
,
66 size_t count
, loff_t
*ppos
)
68 struct ieee80211_local
*local
= file
->private_data
;
72 if (local
->ops
->get_tsf
)
73 tsf
= local
->ops
->get_tsf(local_to_hw(local
));
75 snprintf(buf
, sizeof(buf
), "0x%016llx\n", (unsigned long long) tsf
);
77 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, 19);
80 static ssize_t
tsf_write(struct file
*file
,
81 const char __user
*user_buf
,
82 size_t count
, loff_t
*ppos
)
84 struct ieee80211_local
*local
= file
->private_data
;
85 unsigned long long tsf
;
89 len
= min(count
, sizeof(buf
) - 1);
90 if (copy_from_user(buf
, user_buf
, len
))
94 if (strncmp(buf
, "reset", 5) == 0) {
95 if (local
->ops
->reset_tsf
) {
96 local
->ops
->reset_tsf(local_to_hw(local
));
97 printk(KERN_INFO
"%s: debugfs reset TSF\n", wiphy_name(local
->hw
.wiphy
));
100 tsf
= simple_strtoul(buf
, NULL
, 0);
101 if (local
->ops
->set_tsf
) {
102 local
->ops
->set_tsf(local_to_hw(local
), tsf
);
103 printk(KERN_INFO
"%s: debugfs set TSF to %#018llx\n", wiphy_name(local
->hw
.wiphy
), tsf
);
110 static const struct file_operations tsf_ops
= {
113 .open
= mac80211_open_file_generic
116 /* statistics stuff */
118 #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
119 DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
121 static ssize_t
format_devstat_counter(struct ieee80211_local
*local
,
122 char __user
*userbuf
,
123 size_t count
, loff_t
*ppos
,
124 int (*printvalue
)(struct ieee80211_low_level_stats
*stats
, char *buf
,
127 struct ieee80211_low_level_stats stats
;
131 if (!local
->ops
->get_stats
)
135 res
= local
->ops
->get_stats(local_to_hw(local
), &stats
);
138 res
= printvalue(&stats
, buf
, sizeof(buf
));
139 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
142 #define DEBUGFS_DEVSTATS_FILE(name) \
143 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
144 char *buf, int buflen) \
146 return scnprintf(buf, buflen, "%u\n", stats->name); \
148 static ssize_t stats_ ##name## _read(struct file *file, \
149 char __user *userbuf, \
150 size_t count, loff_t *ppos) \
152 return format_devstat_counter(file->private_data, \
156 print_devstats_##name); \
159 static const struct file_operations stats_ ##name## _ops = { \
160 .read = stats_ ##name## _read, \
161 .open = mac80211_open_file_generic, \
164 #define DEBUGFS_STATS_ADD(name) \
165 local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
166 local, &stats_ ##name## _ops);
168 #define DEBUGFS_STATS_DEL(name) \
169 debugfs_remove(local->debugfs.stats.name); \
170 local->debugfs.stats.name = NULL;
172 DEBUGFS_STATS_FILE(transmitted_fragment_count
, 20, "%u",
173 local
->dot11TransmittedFragmentCount
);
174 DEBUGFS_STATS_FILE(multicast_transmitted_frame_count
, 20, "%u",
175 local
->dot11MulticastTransmittedFrameCount
);
176 DEBUGFS_STATS_FILE(failed_count
, 20, "%u",
177 local
->dot11FailedCount
);
178 DEBUGFS_STATS_FILE(retry_count
, 20, "%u",
179 local
->dot11RetryCount
);
180 DEBUGFS_STATS_FILE(multiple_retry_count
, 20, "%u",
181 local
->dot11MultipleRetryCount
);
182 DEBUGFS_STATS_FILE(frame_duplicate_count
, 20, "%u",
183 local
->dot11FrameDuplicateCount
);
184 DEBUGFS_STATS_FILE(received_fragment_count
, 20, "%u",
185 local
->dot11ReceivedFragmentCount
);
186 DEBUGFS_STATS_FILE(multicast_received_frame_count
, 20, "%u",
187 local
->dot11MulticastReceivedFrameCount
);
188 DEBUGFS_STATS_FILE(transmitted_frame_count
, 20, "%u",
189 local
->dot11TransmittedFrameCount
);
190 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
191 DEBUGFS_STATS_FILE(tx_handlers_drop
, 20, "%u",
192 local
->tx_handlers_drop
);
193 DEBUGFS_STATS_FILE(tx_handlers_queued
, 20, "%u",
194 local
->tx_handlers_queued
);
195 DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted
, 20, "%u",
196 local
->tx_handlers_drop_unencrypted
);
197 DEBUGFS_STATS_FILE(tx_handlers_drop_fragment
, 20, "%u",
198 local
->tx_handlers_drop_fragment
);
199 DEBUGFS_STATS_FILE(tx_handlers_drop_wep
, 20, "%u",
200 local
->tx_handlers_drop_wep
);
201 DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc
, 20, "%u",
202 local
->tx_handlers_drop_not_assoc
);
203 DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port
, 20, "%u",
204 local
->tx_handlers_drop_unauth_port
);
205 DEBUGFS_STATS_FILE(rx_handlers_drop
, 20, "%u",
206 local
->rx_handlers_drop
);
207 DEBUGFS_STATS_FILE(rx_handlers_queued
, 20, "%u",
208 local
->rx_handlers_queued
);
209 DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc
, 20, "%u",
210 local
->rx_handlers_drop_nullfunc
);
211 DEBUGFS_STATS_FILE(rx_handlers_drop_defrag
, 20, "%u",
212 local
->rx_handlers_drop_defrag
);
213 DEBUGFS_STATS_FILE(rx_handlers_drop_short
, 20, "%u",
214 local
->rx_handlers_drop_short
);
215 DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan
, 20, "%u",
216 local
->rx_handlers_drop_passive_scan
);
217 DEBUGFS_STATS_FILE(tx_expand_skb_head
, 20, "%u",
218 local
->tx_expand_skb_head
);
219 DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned
, 20, "%u",
220 local
->tx_expand_skb_head_cloned
);
221 DEBUGFS_STATS_FILE(rx_expand_skb_head
, 20, "%u",
222 local
->rx_expand_skb_head
);
223 DEBUGFS_STATS_FILE(rx_expand_skb_head2
, 20, "%u",
224 local
->rx_expand_skb_head2
);
225 DEBUGFS_STATS_FILE(rx_handlers_fragments
, 20, "%u",
226 local
->rx_handlers_fragments
);
227 DEBUGFS_STATS_FILE(tx_status_drop
, 20, "%u",
228 local
->tx_status_drop
);
232 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount
);
233 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount
);
234 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount
);
235 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount
);
238 void debugfs_hw_add(struct ieee80211_local
*local
)
240 struct dentry
*phyd
= local
->hw
.wiphy
->debugfsdir
;
241 struct dentry
*statsd
;
246 local
->debugfs
.stations
= debugfs_create_dir("stations", phyd
);
247 local
->debugfs
.keys
= debugfs_create_dir("keys", phyd
);
249 DEBUGFS_ADD(frequency
);
250 DEBUGFS_ADD(rts_threshold
);
251 DEBUGFS_ADD(fragmentation_threshold
);
252 DEBUGFS_ADD(short_retry_limit
);
253 DEBUGFS_ADD(long_retry_limit
);
254 DEBUGFS_ADD(total_ps_buffered
);
258 statsd
= debugfs_create_dir("statistics", phyd
);
259 local
->debugfs
.statistics
= statsd
;
261 /* if the dir failed, don't put all the other things into the root! */
265 DEBUGFS_STATS_ADD(transmitted_fragment_count
);
266 DEBUGFS_STATS_ADD(multicast_transmitted_frame_count
);
267 DEBUGFS_STATS_ADD(failed_count
);
268 DEBUGFS_STATS_ADD(retry_count
);
269 DEBUGFS_STATS_ADD(multiple_retry_count
);
270 DEBUGFS_STATS_ADD(frame_duplicate_count
);
271 DEBUGFS_STATS_ADD(received_fragment_count
);
272 DEBUGFS_STATS_ADD(multicast_received_frame_count
);
273 DEBUGFS_STATS_ADD(transmitted_frame_count
);
274 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
275 DEBUGFS_STATS_ADD(tx_handlers_drop
);
276 DEBUGFS_STATS_ADD(tx_handlers_queued
);
277 DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted
);
278 DEBUGFS_STATS_ADD(tx_handlers_drop_fragment
);
279 DEBUGFS_STATS_ADD(tx_handlers_drop_wep
);
280 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc
);
281 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port
);
282 DEBUGFS_STATS_ADD(rx_handlers_drop
);
283 DEBUGFS_STATS_ADD(rx_handlers_queued
);
284 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc
);
285 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag
);
286 DEBUGFS_STATS_ADD(rx_handlers_drop_short
);
287 DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan
);
288 DEBUGFS_STATS_ADD(tx_expand_skb_head
);
289 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned
);
290 DEBUGFS_STATS_ADD(rx_expand_skb_head
);
291 DEBUGFS_STATS_ADD(rx_expand_skb_head2
);
292 DEBUGFS_STATS_ADD(rx_handlers_fragments
);
293 DEBUGFS_STATS_ADD(tx_status_drop
);
295 DEBUGFS_STATS_ADD(dot11ACKFailureCount
);
296 DEBUGFS_STATS_ADD(dot11RTSFailureCount
);
297 DEBUGFS_STATS_ADD(dot11FCSErrorCount
);
298 DEBUGFS_STATS_ADD(dot11RTSSuccessCount
);
301 void debugfs_hw_del(struct ieee80211_local
*local
)
303 DEBUGFS_DEL(frequency
);
304 DEBUGFS_DEL(rts_threshold
);
305 DEBUGFS_DEL(fragmentation_threshold
);
306 DEBUGFS_DEL(short_retry_limit
);
307 DEBUGFS_DEL(long_retry_limit
);
308 DEBUGFS_DEL(total_ps_buffered
);
312 DEBUGFS_STATS_DEL(transmitted_fragment_count
);
313 DEBUGFS_STATS_DEL(multicast_transmitted_frame_count
);
314 DEBUGFS_STATS_DEL(failed_count
);
315 DEBUGFS_STATS_DEL(retry_count
);
316 DEBUGFS_STATS_DEL(multiple_retry_count
);
317 DEBUGFS_STATS_DEL(frame_duplicate_count
);
318 DEBUGFS_STATS_DEL(received_fragment_count
);
319 DEBUGFS_STATS_DEL(multicast_received_frame_count
);
320 DEBUGFS_STATS_DEL(transmitted_frame_count
);
321 DEBUGFS_STATS_DEL(num_scans
);
322 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
323 DEBUGFS_STATS_DEL(tx_handlers_drop
);
324 DEBUGFS_STATS_DEL(tx_handlers_queued
);
325 DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted
);
326 DEBUGFS_STATS_DEL(tx_handlers_drop_fragment
);
327 DEBUGFS_STATS_DEL(tx_handlers_drop_wep
);
328 DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc
);
329 DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port
);
330 DEBUGFS_STATS_DEL(rx_handlers_drop
);
331 DEBUGFS_STATS_DEL(rx_handlers_queued
);
332 DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc
);
333 DEBUGFS_STATS_DEL(rx_handlers_drop_defrag
);
334 DEBUGFS_STATS_DEL(rx_handlers_drop_short
);
335 DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan
);
336 DEBUGFS_STATS_DEL(tx_expand_skb_head
);
337 DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned
);
338 DEBUGFS_STATS_DEL(rx_expand_skb_head
);
339 DEBUGFS_STATS_DEL(rx_expand_skb_head2
);
340 DEBUGFS_STATS_DEL(rx_handlers_fragments
);
341 DEBUGFS_STATS_DEL(tx_status_drop
);
343 DEBUGFS_STATS_DEL(dot11ACKFailureCount
);
344 DEBUGFS_STATS_DEL(dot11RTSFailureCount
);
345 DEBUGFS_STATS_DEL(dot11FCSErrorCount
);
346 DEBUGFS_STATS_DEL(dot11RTSSuccessCount
);
348 debugfs_remove(local
->debugfs
.statistics
);
349 local
->debugfs
.statistics
= NULL
;
350 debugfs_remove(local
->debugfs
.stations
);
351 local
->debugfs
.stations
= NULL
;
352 debugfs_remove(local
->debugfs
.keys
);
353 local
->debugfs
.keys
= NULL
;