Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 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" |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 13 | #include "rate.h" |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 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 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 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) \ |
Johannes Berg | bebb8a5 | 2008-04-04 23:33:37 +0200 | [diff] [blame] | 40 | local->debugfs.name = debugfs_create_file(#name, 0400, phyd, \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 41 | local, &name## _ops); |
| 42 | |
| 43 | #define DEBUGFS_DEL(name) \ |
| 44 | debugfs_remove(local->debugfs.name); \ |
| 45 | local->debugfs.name = NULL; |
| 46 | |
| 47 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 48 | DEBUGFS_READONLY_FILE(frequency, 20, "%d", |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 49 | local->hw.conf.channel->center_freq); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 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", |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame^] | 55 | local->hw.conf.short_frame_max_tx_count); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 56 | DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame^] | 57 | local->hw.conf.long_frame_max_tx_count); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 58 | DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", |
| 59 | local->total_ps_buffered); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 60 | DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", |
| 61 | local->wep_iv & 0xffffff); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 62 | DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", |
| 63 | local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); |
| 64 | |
| 65 | /* statistics stuff */ |
| 66 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 67 | #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ |
| 68 | DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) |
| 69 | |
| 70 | static ssize_t format_devstat_counter(struct ieee80211_local *local, |
| 71 | char __user *userbuf, |
| 72 | size_t count, loff_t *ppos, |
| 73 | int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, |
| 74 | int buflen)) |
| 75 | { |
| 76 | struct ieee80211_low_level_stats stats; |
| 77 | char buf[20]; |
| 78 | int res; |
| 79 | |
| 80 | if (!local->ops->get_stats) |
| 81 | return -EOPNOTSUPP; |
| 82 | |
Johannes Berg | 7563652 | 2008-07-09 14:40:35 +0200 | [diff] [blame] | 83 | rtnl_lock(); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 84 | res = local->ops->get_stats(local_to_hw(local), &stats); |
| 85 | rtnl_unlock(); |
| 86 | if (!res) |
| 87 | res = printvalue(&stats, buf, sizeof(buf)); |
| 88 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
| 89 | } |
| 90 | |
| 91 | #define DEBUGFS_DEVSTATS_FILE(name) \ |
| 92 | static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ |
| 93 | char *buf, int buflen) \ |
| 94 | { \ |
| 95 | return scnprintf(buf, buflen, "%u\n", stats->name); \ |
| 96 | } \ |
| 97 | static ssize_t stats_ ##name## _read(struct file *file, \ |
| 98 | char __user *userbuf, \ |
| 99 | size_t count, loff_t *ppos) \ |
| 100 | { \ |
| 101 | return format_devstat_counter(file->private_data, \ |
| 102 | userbuf, \ |
| 103 | count, \ |
| 104 | ppos, \ |
| 105 | print_devstats_##name); \ |
| 106 | } \ |
| 107 | \ |
| 108 | static const struct file_operations stats_ ##name## _ops = { \ |
| 109 | .read = stats_ ##name## _read, \ |
| 110 | .open = mac80211_open_file_generic, \ |
| 111 | }; |
| 112 | |
| 113 | #define DEBUGFS_STATS_ADD(name) \ |
Johannes Berg | bebb8a5 | 2008-04-04 23:33:37 +0200 | [diff] [blame] | 114 | local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 115 | local, &stats_ ##name## _ops); |
| 116 | |
| 117 | #define DEBUGFS_STATS_DEL(name) \ |
| 118 | debugfs_remove(local->debugfs.stats.name); \ |
| 119 | local->debugfs.stats.name = NULL; |
| 120 | |
| 121 | DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", |
| 122 | local->dot11TransmittedFragmentCount); |
| 123 | DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", |
| 124 | local->dot11MulticastTransmittedFrameCount); |
| 125 | DEBUGFS_STATS_FILE(failed_count, 20, "%u", |
| 126 | local->dot11FailedCount); |
| 127 | DEBUGFS_STATS_FILE(retry_count, 20, "%u", |
| 128 | local->dot11RetryCount); |
| 129 | DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", |
| 130 | local->dot11MultipleRetryCount); |
| 131 | DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", |
| 132 | local->dot11FrameDuplicateCount); |
| 133 | DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", |
| 134 | local->dot11ReceivedFragmentCount); |
| 135 | DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", |
| 136 | local->dot11MulticastReceivedFrameCount); |
| 137 | DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", |
| 138 | local->dot11TransmittedFrameCount); |
| 139 | DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", |
| 140 | local->dot11WEPUndecryptableCount); |
| 141 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| 142 | DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", |
| 143 | local->tx_handlers_drop); |
| 144 | DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", |
| 145 | local->tx_handlers_queued); |
| 146 | DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", |
| 147 | local->tx_handlers_drop_unencrypted); |
| 148 | DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", |
| 149 | local->tx_handlers_drop_fragment); |
| 150 | DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", |
| 151 | local->tx_handlers_drop_wep); |
| 152 | DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", |
| 153 | local->tx_handlers_drop_not_assoc); |
| 154 | DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", |
| 155 | local->tx_handlers_drop_unauth_port); |
| 156 | DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", |
| 157 | local->rx_handlers_drop); |
| 158 | DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", |
| 159 | local->rx_handlers_queued); |
| 160 | DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", |
| 161 | local->rx_handlers_drop_nullfunc); |
| 162 | DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", |
| 163 | local->rx_handlers_drop_defrag); |
| 164 | DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", |
| 165 | local->rx_handlers_drop_short); |
| 166 | DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", |
| 167 | local->rx_handlers_drop_passive_scan); |
| 168 | DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", |
| 169 | local->tx_expand_skb_head); |
| 170 | DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", |
| 171 | local->tx_expand_skb_head_cloned); |
| 172 | DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", |
| 173 | local->rx_expand_skb_head); |
| 174 | DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", |
| 175 | local->rx_expand_skb_head2); |
| 176 | DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", |
| 177 | local->rx_handlers_fragments); |
| 178 | DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", |
| 179 | local->tx_status_drop); |
| 180 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 181 | #endif |
| 182 | |
| 183 | DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); |
| 184 | DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); |
| 185 | DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); |
| 186 | DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); |
| 187 | |
| 188 | |
| 189 | void debugfs_hw_add(struct ieee80211_local *local) |
| 190 | { |
| 191 | struct dentry *phyd = local->hw.wiphy->debugfsdir; |
| 192 | struct dentry *statsd; |
| 193 | |
| 194 | if (!phyd) |
| 195 | return; |
| 196 | |
| 197 | local->debugfs.stations = debugfs_create_dir("stations", phyd); |
| 198 | local->debugfs.keys = debugfs_create_dir("keys", phyd); |
| 199 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 200 | DEBUGFS_ADD(frequency); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 201 | DEBUGFS_ADD(rts_threshold); |
| 202 | DEBUGFS_ADD(fragmentation_threshold); |
| 203 | DEBUGFS_ADD(short_retry_limit); |
| 204 | DEBUGFS_ADD(long_retry_limit); |
| 205 | DEBUGFS_ADD(total_ps_buffered); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 206 | DEBUGFS_ADD(wep_iv); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 207 | |
| 208 | statsd = debugfs_create_dir("statistics", phyd); |
| 209 | local->debugfs.statistics = statsd; |
| 210 | |
| 211 | /* if the dir failed, don't put all the other things into the root! */ |
| 212 | if (!statsd) |
| 213 | return; |
| 214 | |
| 215 | DEBUGFS_STATS_ADD(transmitted_fragment_count); |
| 216 | DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); |
| 217 | DEBUGFS_STATS_ADD(failed_count); |
| 218 | DEBUGFS_STATS_ADD(retry_count); |
| 219 | DEBUGFS_STATS_ADD(multiple_retry_count); |
| 220 | DEBUGFS_STATS_ADD(frame_duplicate_count); |
| 221 | DEBUGFS_STATS_ADD(received_fragment_count); |
| 222 | DEBUGFS_STATS_ADD(multicast_received_frame_count); |
| 223 | DEBUGFS_STATS_ADD(transmitted_frame_count); |
| 224 | DEBUGFS_STATS_ADD(wep_undecryptable_count); |
| 225 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| 226 | DEBUGFS_STATS_ADD(tx_handlers_drop); |
| 227 | DEBUGFS_STATS_ADD(tx_handlers_queued); |
| 228 | DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); |
| 229 | DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); |
| 230 | DEBUGFS_STATS_ADD(tx_handlers_drop_wep); |
| 231 | DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); |
| 232 | DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); |
| 233 | DEBUGFS_STATS_ADD(rx_handlers_drop); |
| 234 | DEBUGFS_STATS_ADD(rx_handlers_queued); |
| 235 | DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); |
| 236 | DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); |
| 237 | DEBUGFS_STATS_ADD(rx_handlers_drop_short); |
| 238 | DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); |
| 239 | DEBUGFS_STATS_ADD(tx_expand_skb_head); |
| 240 | DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); |
| 241 | DEBUGFS_STATS_ADD(rx_expand_skb_head); |
| 242 | DEBUGFS_STATS_ADD(rx_expand_skb_head2); |
| 243 | DEBUGFS_STATS_ADD(rx_handlers_fragments); |
| 244 | DEBUGFS_STATS_ADD(tx_status_drop); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 245 | #endif |
| 246 | DEBUGFS_STATS_ADD(dot11ACKFailureCount); |
| 247 | DEBUGFS_STATS_ADD(dot11RTSFailureCount); |
| 248 | DEBUGFS_STATS_ADD(dot11FCSErrorCount); |
| 249 | DEBUGFS_STATS_ADD(dot11RTSSuccessCount); |
| 250 | } |
| 251 | |
| 252 | void debugfs_hw_del(struct ieee80211_local *local) |
| 253 | { |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 254 | DEBUGFS_DEL(frequency); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 255 | DEBUGFS_DEL(rts_threshold); |
| 256 | DEBUGFS_DEL(fragmentation_threshold); |
| 257 | DEBUGFS_DEL(short_retry_limit); |
| 258 | DEBUGFS_DEL(long_retry_limit); |
| 259 | DEBUGFS_DEL(total_ps_buffered); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 260 | DEBUGFS_DEL(wep_iv); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 261 | |
| 262 | DEBUGFS_STATS_DEL(transmitted_fragment_count); |
| 263 | DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); |
| 264 | DEBUGFS_STATS_DEL(failed_count); |
| 265 | DEBUGFS_STATS_DEL(retry_count); |
| 266 | DEBUGFS_STATS_DEL(multiple_retry_count); |
| 267 | DEBUGFS_STATS_DEL(frame_duplicate_count); |
| 268 | DEBUGFS_STATS_DEL(received_fragment_count); |
| 269 | DEBUGFS_STATS_DEL(multicast_received_frame_count); |
| 270 | DEBUGFS_STATS_DEL(transmitted_frame_count); |
| 271 | DEBUGFS_STATS_DEL(wep_undecryptable_count); |
| 272 | DEBUGFS_STATS_DEL(num_scans); |
| 273 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| 274 | DEBUGFS_STATS_DEL(tx_handlers_drop); |
| 275 | DEBUGFS_STATS_DEL(tx_handlers_queued); |
| 276 | DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); |
| 277 | DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); |
| 278 | DEBUGFS_STATS_DEL(tx_handlers_drop_wep); |
| 279 | DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); |
| 280 | DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); |
| 281 | DEBUGFS_STATS_DEL(rx_handlers_drop); |
| 282 | DEBUGFS_STATS_DEL(rx_handlers_queued); |
| 283 | DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); |
| 284 | DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); |
| 285 | DEBUGFS_STATS_DEL(rx_handlers_drop_short); |
| 286 | DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); |
| 287 | DEBUGFS_STATS_DEL(tx_expand_skb_head); |
| 288 | DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); |
| 289 | DEBUGFS_STATS_DEL(rx_expand_skb_head); |
| 290 | DEBUGFS_STATS_DEL(rx_expand_skb_head2); |
| 291 | DEBUGFS_STATS_DEL(rx_handlers_fragments); |
| 292 | DEBUGFS_STATS_DEL(tx_status_drop); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 293 | #endif |
| 294 | DEBUGFS_STATS_DEL(dot11ACKFailureCount); |
| 295 | DEBUGFS_STATS_DEL(dot11RTSFailureCount); |
| 296 | DEBUGFS_STATS_DEL(dot11FCSErrorCount); |
| 297 | DEBUGFS_STATS_DEL(dot11RTSSuccessCount); |
| 298 | |
| 299 | debugfs_remove(local->debugfs.statistics); |
| 300 | local->debugfs.statistics = NULL; |
| 301 | debugfs_remove(local->debugfs.stations); |
| 302 | local->debugfs.stations = NULL; |
| 303 | debugfs_remove(local->debugfs.keys); |
| 304 | local->debugfs.keys = NULL; |
| 305 | } |