Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2003-2005 Devicescape Software, Inc. |
| 3 | * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> |
| 4 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/debugfs.h> |
| 12 | #include <linux/ieee80211.h> |
| 13 | #include "ieee80211_i.h" |
| 14 | #include "debugfs.h" |
| 15 | #include "debugfs_sta.h" |
| 16 | #include "sta_info.h" |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 17 | #include "driver-ops.h" |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 18 | |
| 19 | /* sta attributtes */ |
| 20 | |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 21 | #define STA_READ(name, field, format_string) \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 22 | static ssize_t sta_ ##name## _read(struct file *file, \ |
| 23 | char __user *userbuf, \ |
| 24 | size_t count, loff_t *ppos) \ |
| 25 | { \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 26 | struct sta_info *sta = file->private_data; \ |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 27 | return mac80211_format_buffer(userbuf, count, ppos, \ |
| 28 | format_string, sta->field); \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 29 | } |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 30 | #define STA_READ_D(name, field) STA_READ(name, field, "%d\n") |
| 31 | #define STA_READ_U(name, field) STA_READ(name, field, "%u\n") |
| 32 | #define STA_READ_S(name, field) STA_READ(name, field, "%s\n") |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 33 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 34 | #define STA_OPS(name) \ |
| 35 | static const struct file_operations sta_ ##name## _ops = { \ |
| 36 | .read = sta_##name##_read, \ |
Stephen Boyd | 234e340 | 2012-04-05 14:25:11 -0700 | [diff] [blame] | 37 | .open = simple_open, \ |
Arnd Bergmann | 2b18ab36 | 2010-07-06 19:05:31 +0200 | [diff] [blame] | 38 | .llseek = generic_file_llseek, \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 39 | } |
| 40 | |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 41 | #define STA_OPS_W(name) \ |
| 42 | static const struct file_operations sta_ ##name## _ops = { \ |
| 43 | .write = sta_##name##_write, \ |
| 44 | .open = simple_open, \ |
| 45 | .llseek = generic_file_llseek, \ |
| 46 | } |
| 47 | |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 48 | #define STA_OPS_RW(name) \ |
| 49 | static const struct file_operations sta_ ##name## _ops = { \ |
| 50 | .read = sta_##name##_read, \ |
| 51 | .write = sta_##name##_write, \ |
Stephen Boyd | 234e340 | 2012-04-05 14:25:11 -0700 | [diff] [blame] | 52 | .open = simple_open, \ |
Arnd Bergmann | 2b18ab36 | 2010-07-06 19:05:31 +0200 | [diff] [blame] | 53 | .llseek = generic_file_llseek, \ |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 54 | } |
| 55 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 56 | #define STA_FILE(name, field, format) \ |
| 57 | STA_READ_##format(name, field) \ |
| 58 | STA_OPS(name) |
| 59 | |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 60 | STA_FILE(aid, sta.aid, D); |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 61 | STA_FILE(dev, sdata->name, S); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 62 | STA_FILE(last_signal, last_signal, D); |
Saravana | db94357 | 2012-11-28 18:27:09 +0530 | [diff] [blame] | 63 | STA_FILE(last_ack_signal, last_ack_signal, D); |
Ben Greear | 78e443e | 2013-03-25 11:19:34 -0700 | [diff] [blame] | 64 | STA_FILE(beacon_loss_count, beacon_loss_count, D); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 65 | |
| 66 | static ssize_t sta_flags_read(struct file *file, char __user *userbuf, |
| 67 | size_t count, loff_t *ppos) |
| 68 | { |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 69 | char buf[121]; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 70 | struct sta_info *sta = file->private_data; |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 71 | |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 72 | #define TEST(flg) \ |
| 73 | test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : "" |
| 74 | |
| 75 | int res = scnprintf(buf, sizeof(buf), |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 76 | "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 77 | TEST(AUTH), TEST(ASSOC), TEST(PS_STA), |
| 78 | TEST(PS_DRIVER), TEST(AUTHORIZED), |
Johannes Berg | fb4431b | 2011-11-17 16:23:29 +0100 | [diff] [blame] | 79 | TEST(SHORT_PREAMBLE), |
Johannes Berg | a74a8c8 | 2014-07-22 14:50:47 +0200 | [diff] [blame] | 80 | sta->sta.wme ? "WME\n" : "", |
| 81 | TEST(WDS), TEST(CLEAR_PS_FILT), |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 82 | TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL), |
| 83 | TEST(UAPSD), TEST(SP), TEST(TDLS_PEER), |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 84 | TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT), |
Javier Cardona | dbf498f | 2012-03-31 11:31:32 -0700 | [diff] [blame] | 85 | TEST(INSERTED), TEST(RATE_CONTROL), |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 86 | TEST(TOFFSET_KNOWN), TEST(MPSP_OWNER), |
| 87 | TEST(MPSP_RECIPIENT)); |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 88 | #undef TEST |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 89 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
| 90 | } |
| 91 | STA_OPS(flags); |
| 92 | |
| 93 | static ssize_t sta_num_ps_buf_frames_read(struct file *file, |
| 94 | char __user *userbuf, |
| 95 | size_t count, loff_t *ppos) |
| 96 | { |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 97 | struct sta_info *sta = file->private_data; |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 98 | char buf[17*IEEE80211_NUM_ACS], *p = buf; |
| 99 | int ac; |
| 100 | |
| 101 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) |
| 102 | p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, |
| 103 | skb_queue_len(&sta->ps_tx_buf[ac]) + |
| 104 | skb_queue_len(&sta->tx_filtered[ac])); |
| 105 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 106 | } |
| 107 | STA_OPS(num_ps_buf_frames); |
| 108 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 109 | static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, |
| 110 | size_t count, loff_t *ppos) |
| 111 | { |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 112 | struct sta_info *sta = file->private_data; |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 113 | return mac80211_format_buffer(userbuf, count, ppos, "%d\n", |
| 114 | jiffies_to_msecs(jiffies - sta->last_rx)); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 115 | } |
| 116 | STA_OPS(inactive_ms); |
| 117 | |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 118 | |
| 119 | static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf, |
| 120 | size_t count, loff_t *ppos) |
| 121 | { |
| 122 | struct sta_info *sta = file->private_data; |
| 123 | struct timespec uptime; |
| 124 | struct tm result; |
| 125 | long connected_time_secs; |
| 126 | char buf[100]; |
| 127 | int res; |
Thomas Gleixner | 1817152 | 2014-06-11 23:59:14 +0000 | [diff] [blame] | 128 | ktime_get_ts(&uptime); |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 129 | connected_time_secs = uptime.tv_sec - sta->last_connected; |
| 130 | time_to_tm(connected_time_secs, 0, &result); |
| 131 | result.tm_year -= 70; |
| 132 | result.tm_mday -= 1; |
| 133 | res = scnprintf(buf, sizeof(buf), |
Randy Dunlap | 7762bb0 | 2011-04-15 16:20:05 -0700 | [diff] [blame] | 134 | "years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n", |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 135 | result.tm_year, result.tm_mon, result.tm_mday, |
| 136 | result.tm_hour, result.tm_min, result.tm_sec); |
| 137 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
| 138 | } |
| 139 | STA_OPS(connected_time); |
| 140 | |
| 141 | |
| 142 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 143 | static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, |
| 144 | size_t count, loff_t *ppos) |
| 145 | { |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 146 | char buf[15*IEEE80211_NUM_TIDS], *p = buf; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 147 | int i; |
| 148 | struct sta_info *sta = file->private_data; |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 149 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 150 | p += scnprintf(p, sizeof(buf)+buf-p, "%x ", |
Zhu Yi | ba9b07d | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 151 | le16_to_cpu(sta->last_seq_ctrl[i])); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 152 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
| 153 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 154 | } |
| 155 | STA_OPS(last_seq_ctrl); |
| 156 | |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 157 | static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, |
| 158 | size_t count, loff_t *ppos) |
| 159 | { |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 160 | char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 161 | int i; |
| 162 | struct sta_info *sta = file->private_data; |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 163 | struct tid_ampdu_rx *tid_rx; |
| 164 | struct tid_ampdu_tx *tid_tx; |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 165 | |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 166 | rcu_read_lock(); |
| 167 | |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 168 | p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 169 | sta->ampdu_mlme.dialog_token_allocator + 1); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 170 | p += scnprintf(p, sizeof(buf) + buf - p, |
Johannes Berg | 14b058b | 2014-08-05 09:34:05 +0200 | [diff] [blame] | 171 | "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 172 | |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 173 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) { |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 174 | tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); |
| 175 | tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); |
| 176 | |
| 177 | p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); |
| 178 | p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 179 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 180 | tid_rx ? tid_rx->dialog_token : 0); |
| 181 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", |
| 182 | tid_rx ? tid_rx->ssn : 0); |
| 183 | |
| 184 | p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); |
| 185 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", |
| 186 | tid_tx ? tid_tx->dialog_token : 0); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 187 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 188 | tid_tx ? skb_queue_len(&tid_tx->pending) : 0); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 189 | p += scnprintf(p, sizeof(buf) + buf - p, "\n"); |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 190 | } |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 191 | rcu_read_unlock(); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 192 | |
| 193 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 194 | } |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 195 | |
| 196 | static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, |
| 197 | size_t count, loff_t *ppos) |
| 198 | { |
Johannes Berg | c4d2ffa | 2014-01-08 22:22:05 +0100 | [diff] [blame] | 199 | char _buf[12] = {}, *buf = _buf; |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 200 | struct sta_info *sta = file->private_data; |
| 201 | bool start, tx; |
| 202 | unsigned long tid; |
| 203 | int ret; |
| 204 | |
| 205 | if (count > sizeof(_buf)) |
| 206 | return -EINVAL; |
| 207 | |
| 208 | if (copy_from_user(buf, userbuf, count)) |
| 209 | return -EFAULT; |
| 210 | |
| 211 | buf[sizeof(_buf) - 1] = '\0'; |
| 212 | |
| 213 | if (strncmp(buf, "tx ", 3) == 0) { |
| 214 | buf += 3; |
| 215 | tx = true; |
| 216 | } else if (strncmp(buf, "rx ", 3) == 0) { |
| 217 | buf += 3; |
| 218 | tx = false; |
| 219 | } else |
| 220 | return -EINVAL; |
| 221 | |
| 222 | if (strncmp(buf, "start ", 6) == 0) { |
| 223 | buf += 6; |
| 224 | start = true; |
| 225 | if (!tx) |
| 226 | return -EINVAL; |
| 227 | } else if (strncmp(buf, "stop ", 5) == 0) { |
| 228 | buf += 5; |
| 229 | start = false; |
| 230 | } else |
| 231 | return -EINVAL; |
| 232 | |
Abhijit Pawar | 4b5511e | 2012-12-09 23:12:28 +0000 | [diff] [blame] | 233 | ret = kstrtoul(buf, 0, &tid); |
| 234 | if (ret) |
| 235 | return ret; |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 236 | |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 237 | if (tid >= IEEE80211_NUM_TIDS) |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 238 | return -EINVAL; |
| 239 | |
| 240 | if (tx) { |
| 241 | if (start) |
Sujith Manoharan | bd2ce6e | 2010-12-15 07:47:10 +0530 | [diff] [blame] | 242 | ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 243 | else |
Johannes Berg | 6a8579d | 2010-05-27 14:41:07 +0200 | [diff] [blame] | 244 | ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 245 | } else { |
Johannes Berg | 53f73c0 | 2010-10-05 19:37:40 +0200 | [diff] [blame] | 246 | __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, |
| 247 | 3, true); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 248 | ret = 0; |
| 249 | } |
| 250 | |
| 251 | return ret ?: count; |
| 252 | } |
| 253 | STA_OPS_RW(agg_status); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 254 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 255 | static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, |
| 256 | size_t count, loff_t *ppos) |
| 257 | { |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 258 | #define PRINT_HT_CAP(_cond, _str) \ |
| 259 | do { \ |
| 260 | if (_cond) \ |
| 261 | p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ |
| 262 | } while (0) |
Pavel Roskin | 4c82bf8 | 2010-01-30 19:55:09 -0500 | [diff] [blame] | 263 | char buf[512], *p = buf; |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 264 | int i; |
| 265 | struct sta_info *sta = file->private_data; |
| 266 | struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; |
| 267 | |
| 268 | p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", |
| 269 | htc->ht_supported ? "" : "not "); |
| 270 | if (htc->ht_supported) { |
Luis R. Rodriguez | cb136f5 | 2009-12-07 14:01:28 -0500 | [diff] [blame] | 271 | p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 272 | |
Luis R. Rodriguez | c15cf5f | 2010-04-08 16:08:46 -0400 | [diff] [blame] | 273 | PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 274 | PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); |
| 275 | PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); |
| 276 | |
| 277 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); |
| 278 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); |
| 279 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); |
| 280 | |
| 281 | PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); |
| 282 | PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); |
| 283 | PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); |
| 284 | PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); |
| 285 | |
| 286 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); |
| 287 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); |
| 288 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); |
| 289 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); |
| 290 | |
| 291 | PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); |
| 292 | |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 293 | PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " |
Ben Greear | 904603f | 2011-11-17 14:53:36 -0800 | [diff] [blame] | 294 | "3839 bytes"); |
| 295 | PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 296 | "7935 bytes"); |
| 297 | |
| 298 | /* |
| 299 | * For beacons and probe response this would mean the BSS |
| 300 | * does or does not allow the usage of DSSS/CCK HT40. |
| 301 | * Otherwise it means the STA does or does not use |
| 302 | * DSSS/CCK HT40. |
| 303 | */ |
| 304 | PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); |
| 305 | PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); |
| 306 | |
| 307 | /* BIT(13) is reserved */ |
| 308 | |
| 309 | PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); |
| 310 | |
| 311 | PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); |
| 312 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 313 | p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", |
| 314 | htc->ampdu_factor, htc->ampdu_density); |
| 315 | p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); |
Luis R. Rodriguez | 9da3e06 | 2009-12-07 15:57:50 -0500 | [diff] [blame] | 316 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 317 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) |
| 318 | p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", |
| 319 | htc->mcs.rx_mask[i]); |
Luis R. Rodriguez | 9da3e06 | 2009-12-07 15:57:50 -0500 | [diff] [blame] | 320 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
| 321 | |
| 322 | /* If not set this is meaningless */ |
| 323 | if (le16_to_cpu(htc->mcs.rx_highest)) { |
| 324 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 325 | "MCS rx highest: %d Mbps\n", |
| 326 | le16_to_cpu(htc->mcs.rx_highest)); |
| 327 | } |
| 328 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 329 | p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", |
| 330 | htc->mcs.tx_params); |
| 331 | } |
| 332 | |
| 333 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 334 | } |
| 335 | STA_OPS(ht_capa); |
| 336 | |
Johannes Berg | 90fcba6 | 2013-03-01 13:36:24 +0100 | [diff] [blame] | 337 | static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, |
| 338 | size_t count, loff_t *ppos) |
| 339 | { |
| 340 | char buf[128], *p = buf; |
| 341 | struct sta_info *sta = file->private_data; |
| 342 | struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; |
| 343 | |
| 344 | p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", |
| 345 | vhtc->vht_supported ? "" : "not "); |
| 346 | if (vhtc->vht_supported) { |
| 347 | p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap); |
| 348 | |
| 349 | p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", |
| 350 | le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); |
| 351 | if (vhtc->vht_mcs.rx_highest) |
| 352 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 353 | "MCS RX highest: %d Mbps\n", |
| 354 | le16_to_cpu(vhtc->vht_mcs.rx_highest)); |
| 355 | p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", |
| 356 | le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); |
| 357 | if (vhtc->vht_mcs.tx_highest) |
| 358 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 359 | "MCS TX highest: %d Mbps\n", |
| 360 | le16_to_cpu(vhtc->vht_mcs.tx_highest)); |
| 361 | } |
| 362 | |
| 363 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 364 | } |
| 365 | STA_OPS(vht_capa); |
| 366 | |
Saravana | 91b8c05 | 2012-11-29 19:22:37 +0530 | [diff] [blame] | 367 | static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf, |
| 368 | size_t count, loff_t *ppos) |
| 369 | { |
| 370 | struct sta_info *sta = file->private_data; |
| 371 | struct rate_info rinfo; |
| 372 | u16 rate; |
| 373 | sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo); |
| 374 | rate = cfg80211_calculate_bitrate(&rinfo); |
| 375 | |
| 376 | return mac80211_format_buffer(userbuf, count, ppos, |
| 377 | "%d.%d MBit/s\n", |
| 378 | rate/10, rate%10); |
| 379 | } |
| 380 | STA_OPS(current_tx_rate); |
| 381 | |
Saravana | 1f2e651 | 2012-11-29 19:54:19 +0530 | [diff] [blame] | 382 | static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf, |
| 383 | size_t count, loff_t *ppos) |
| 384 | { |
| 385 | struct sta_info *sta = file->private_data; |
| 386 | struct rate_info rinfo; |
| 387 | u16 rate; |
| 388 | |
| 389 | sta_set_rate_info_rx(sta, &rinfo); |
| 390 | |
| 391 | rate = cfg80211_calculate_bitrate(&rinfo); |
| 392 | |
| 393 | return mac80211_format_buffer(userbuf, count, ppos, |
| 394 | "%d.%d MBit/s\n", |
| 395 | rate/10, rate%10); |
| 396 | } |
| 397 | STA_OPS(last_rx_rate); |
| 398 | |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 399 | static int |
| 400 | sta_tx_latency_stat_header(struct ieee80211_tx_latency_bin_ranges *tx_latency, |
| 401 | char *buf, int pos, int bufsz) |
| 402 | { |
| 403 | int i; |
| 404 | int range_count = tx_latency->n_ranges; |
| 405 | u32 *bin_ranges = tx_latency->ranges; |
| 406 | |
| 407 | pos += scnprintf(buf + pos, bufsz - pos, |
| 408 | "Station\t\t\tTID\tMax\tAvg"); |
| 409 | if (range_count) { |
| 410 | pos += scnprintf(buf + pos, bufsz - pos, |
| 411 | "\t<=%d", bin_ranges[0]); |
| 412 | for (i = 0; i < range_count - 1; i++) |
| 413 | pos += scnprintf(buf + pos, bufsz - pos, "\t%d-%d", |
| 414 | bin_ranges[i], bin_ranges[i+1]); |
| 415 | pos += scnprintf(buf + pos, bufsz - pos, |
| 416 | "\t%d<", bin_ranges[range_count - 1]); |
| 417 | } |
| 418 | |
| 419 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
| 420 | |
| 421 | return pos; |
| 422 | } |
| 423 | |
| 424 | static int |
| 425 | sta_tx_latency_stat_table(struct ieee80211_tx_latency_bin_ranges *tx_lat_range, |
| 426 | struct ieee80211_tx_latency_stat *tx_lat, |
| 427 | char *buf, int pos, int bufsz, int tid) |
| 428 | { |
| 429 | u32 avg = 0; |
| 430 | int j; |
| 431 | int bin_count = tx_lat->bin_count; |
| 432 | |
| 433 | pos += scnprintf(buf + pos, bufsz - pos, "\t\t\t%d", tid); |
| 434 | /* make sure you don't divide in 0 */ |
| 435 | if (tx_lat->counter) |
| 436 | avg = tx_lat->sum / tx_lat->counter; |
| 437 | |
| 438 | pos += scnprintf(buf + pos, bufsz - pos, "\t%d\t%d", |
| 439 | tx_lat->max, avg); |
| 440 | |
| 441 | if (tx_lat_range->n_ranges && tx_lat->bins) |
| 442 | for (j = 0; j < bin_count; j++) |
| 443 | pos += scnprintf(buf + pos, bufsz - pos, |
| 444 | "\t%d", tx_lat->bins[j]); |
| 445 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
| 446 | |
| 447 | return pos; |
| 448 | } |
| 449 | |
| 450 | /* |
| 451 | * Output Tx latency statistics station && restart all statistics information |
| 452 | */ |
| 453 | static ssize_t sta_tx_latency_stat_read(struct file *file, |
| 454 | char __user *userbuf, |
| 455 | size_t count, loff_t *ppos) |
| 456 | { |
| 457 | struct sta_info *sta = file->private_data; |
| 458 | struct ieee80211_local *local = sta->local; |
| 459 | struct ieee80211_tx_latency_bin_ranges *tx_latency; |
| 460 | char *buf; |
| 461 | int bufsz, ret, i; |
| 462 | int pos = 0; |
| 463 | |
| 464 | bufsz = 20 * IEEE80211_NUM_TIDS * |
| 465 | sizeof(struct ieee80211_tx_latency_stat); |
| 466 | buf = kzalloc(bufsz, GFP_KERNEL); |
| 467 | if (!buf) |
| 468 | return -ENOMEM; |
| 469 | |
| 470 | rcu_read_lock(); |
| 471 | |
| 472 | tx_latency = rcu_dereference(local->tx_latency); |
| 473 | |
| 474 | if (!sta->tx_lat) { |
| 475 | pos += scnprintf(buf + pos, bufsz - pos, |
| 476 | "Tx latency statistics are not enabled\n"); |
| 477 | goto unlock; |
| 478 | } |
| 479 | |
| 480 | pos = sta_tx_latency_stat_header(tx_latency, buf, pos, bufsz); |
| 481 | |
| 482 | pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", sta->sta.addr); |
| 483 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) |
| 484 | pos = sta_tx_latency_stat_table(tx_latency, &sta->tx_lat[i], |
| 485 | buf, pos, bufsz, i); |
| 486 | unlock: |
| 487 | rcu_read_unlock(); |
| 488 | |
| 489 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 490 | kfree(buf); |
| 491 | |
| 492 | return ret; |
| 493 | } |
| 494 | STA_OPS(tx_latency_stat); |
| 495 | |
| 496 | static ssize_t sta_tx_latency_stat_reset_write(struct file *file, |
| 497 | const char __user *userbuf, |
| 498 | size_t count, loff_t *ppos) |
| 499 | { |
| 500 | u32 *bins; |
| 501 | int bin_count; |
| 502 | struct sta_info *sta = file->private_data; |
| 503 | int i; |
| 504 | |
| 505 | if (!sta->tx_lat) |
| 506 | return -EINVAL; |
| 507 | |
| 508 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) { |
| 509 | bins = sta->tx_lat[i].bins; |
| 510 | bin_count = sta->tx_lat[i].bin_count; |
| 511 | |
| 512 | sta->tx_lat[i].max = 0; |
| 513 | sta->tx_lat[i].sum = 0; |
| 514 | sta->tx_lat[i].counter = 0; |
| 515 | |
| 516 | if (bin_count) |
| 517 | memset(bins, 0, bin_count * sizeof(u32)); |
| 518 | } |
| 519 | |
| 520 | return count; |
| 521 | } |
| 522 | STA_OPS_W(tx_latency_stat_reset); |
| 523 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 524 | #define DEBUGFS_ADD(name) \ |
Johannes Berg | 7bcfaf2 | 2009-10-27 12:59:03 +0100 | [diff] [blame] | 525 | debugfs_create_file(#name, 0400, \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 526 | sta->debugfs.dir, sta, &sta_ ##name## _ops); |
| 527 | |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 528 | #define DEBUGFS_ADD_COUNTER(name, field) \ |
| 529 | if (sizeof(sta->field) == sizeof(u32)) \ |
| 530 | debugfs_create_u32(#name, 0400, sta->debugfs.dir, \ |
| 531 | (u32 *) &sta->field); \ |
| 532 | else \ |
| 533 | debugfs_create_u64(#name, 0400, sta->debugfs.dir, \ |
| 534 | (u64 *) &sta->field); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 535 | |
| 536 | void ieee80211_sta_debugfs_add(struct sta_info *sta) |
| 537 | { |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 538 | struct ieee80211_local *local = sta->local; |
| 539 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
Ben Greear | 295bafb | 2010-09-22 20:29:01 -0700 | [diff] [blame] | 540 | struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; |
Johannes Berg | 0c68ae26 | 2008-10-27 15:56:10 -0700 | [diff] [blame] | 541 | u8 mac[3*ETH_ALEN]; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 542 | |
Johannes Berg | 63044e9 | 2008-10-07 12:04:29 +0200 | [diff] [blame] | 543 | sta->debugfs.add_has_run = true; |
| 544 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 545 | if (!stations_dir) |
| 546 | return; |
| 547 | |
Johannes Berg | 0c68ae26 | 2008-10-27 15:56:10 -0700 | [diff] [blame] | 548 | snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 549 | |
Johannes Berg | 63044e9 | 2008-10-07 12:04:29 +0200 | [diff] [blame] | 550 | /* |
| 551 | * This might fail due to a race condition: |
| 552 | * When mac80211 unlinks a station, the debugfs entries |
| 553 | * remain, but it is already possible to link a new |
| 554 | * station with the same address which triggers adding |
| 555 | * it to debugfs; therefore, if the old station isn't |
| 556 | * destroyed quickly enough the old station's debugfs |
| 557 | * dir might still be around. |
| 558 | */ |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 559 | sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 560 | if (!sta->debugfs.dir) |
| 561 | return; |
| 562 | |
| 563 | DEBUGFS_ADD(flags); |
| 564 | DEBUGFS_ADD(num_ps_buf_frames); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 565 | DEBUGFS_ADD(inactive_ms); |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 566 | DEBUGFS_ADD(connected_time); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 567 | DEBUGFS_ADD(last_seq_ctrl); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 568 | DEBUGFS_ADD(agg_status); |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 569 | DEBUGFS_ADD(dev); |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 570 | DEBUGFS_ADD(last_signal); |
Ben Greear | 78e443e | 2013-03-25 11:19:34 -0700 | [diff] [blame] | 571 | DEBUGFS_ADD(beacon_loss_count); |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 572 | DEBUGFS_ADD(ht_capa); |
Johannes Berg | 90fcba6 | 2013-03-01 13:36:24 +0100 | [diff] [blame] | 573 | DEBUGFS_ADD(vht_capa); |
Saravana | db94357 | 2012-11-28 18:27:09 +0530 | [diff] [blame] | 574 | DEBUGFS_ADD(last_ack_signal); |
Saravana | 91b8c05 | 2012-11-29 19:22:37 +0530 | [diff] [blame] | 575 | DEBUGFS_ADD(current_tx_rate); |
Saravana | 1f2e651 | 2012-11-29 19:54:19 +0530 | [diff] [blame] | 576 | DEBUGFS_ADD(last_rx_rate); |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 577 | DEBUGFS_ADD(tx_latency_stat); |
| 578 | DEBUGFS_ADD(tx_latency_stat_reset); |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 579 | |
| 580 | DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); |
| 581 | DEBUGFS_ADD_COUNTER(tx_packets, tx_packets); |
| 582 | DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes); |
| 583 | DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes); |
| 584 | DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates); |
| 585 | DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments); |
| 586 | DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped); |
| 587 | DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments); |
| 588 | DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count); |
| 589 | DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed); |
| 590 | DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count); |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 591 | |
Johannes Berg | 7cf1f14 | 2013-07-12 10:40:31 +0200 | [diff] [blame] | 592 | if (sizeof(sta->driver_buffered_tids) == sizeof(u32)) |
| 593 | debugfs_create_x32("driver_buffered_tids", 0400, |
| 594 | sta->debugfs.dir, |
| 595 | (u32 *)&sta->driver_buffered_tids); |
| 596 | else |
| 597 | debugfs_create_x64("driver_buffered_tids", 0400, |
| 598 | sta->debugfs.dir, |
| 599 | (u64 *)&sta->driver_buffered_tids); |
| 600 | |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 601 | drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | void ieee80211_sta_debugfs_remove(struct sta_info *sta) |
| 605 | { |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 606 | struct ieee80211_local *local = sta->local; |
| 607 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
| 608 | |
| 609 | drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); |
Johannes Berg | 7bcfaf2 | 2009-10-27 12:59:03 +0100 | [diff] [blame] | 610 | debugfs_remove_recursive(sta->debugfs.dir); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 611 | sta->debugfs.dir = NULL; |
| 612 | } |