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> |
Johannes Berg | d98ad83 | 2014-09-03 15:24:57 +0300 | [diff] [blame] | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 6 | * Copyright(c) 2016 Intel Deutschland GmbH |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/debugfs.h> |
| 14 | #include <linux/ieee80211.h> |
| 15 | #include "ieee80211_i.h" |
| 16 | #include "debugfs.h" |
| 17 | #include "debugfs_sta.h" |
| 18 | #include "sta_info.h" |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 19 | #include "driver-ops.h" |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 20 | |
| 21 | /* sta attributtes */ |
| 22 | |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 23 | #define STA_READ(name, field, format_string) \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 24 | static ssize_t sta_ ##name## _read(struct file *file, \ |
| 25 | char __user *userbuf, \ |
| 26 | size_t count, loff_t *ppos) \ |
| 27 | { \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 28 | struct sta_info *sta = file->private_data; \ |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 29 | return mac80211_format_buffer(userbuf, count, ppos, \ |
| 30 | format_string, sta->field); \ |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 31 | } |
Eliad Peller | 07caf9d | 2010-10-27 14:58:29 +0200 | [diff] [blame] | 32 | #define STA_READ_D(name, field) STA_READ(name, field, "%d\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 | |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 41 | #define STA_OPS_RW(name) \ |
| 42 | static const struct file_operations sta_ ##name## _ops = { \ |
| 43 | .read = sta_##name##_read, \ |
| 44 | .write = sta_##name##_write, \ |
Stephen Boyd | 234e340 | 2012-04-05 14:25:11 -0700 | [diff] [blame] | 45 | .open = simple_open, \ |
Arnd Bergmann | 2b18ab36 | 2010-07-06 19:05:31 +0200 | [diff] [blame] | 46 | .llseek = generic_file_llseek, \ |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 47 | } |
| 48 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 49 | #define STA_FILE(name, field, format) \ |
| 50 | STA_READ_##format(name, field) \ |
| 51 | STA_OPS(name) |
| 52 | |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 53 | STA_FILE(aid, sta.aid, D); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 54 | |
Johannes Berg | c84387d | 2016-03-17 15:02:54 +0200 | [diff] [blame] | 55 | static const char * const sta_flag_names[] = { |
| 56 | #define FLAG(F) [WLAN_STA_##F] = #F |
| 57 | FLAG(AUTH), |
| 58 | FLAG(ASSOC), |
| 59 | FLAG(PS_STA), |
| 60 | FLAG(AUTHORIZED), |
| 61 | FLAG(SHORT_PREAMBLE), |
| 62 | FLAG(WDS), |
| 63 | FLAG(CLEAR_PS_FILT), |
| 64 | FLAG(MFP), |
| 65 | FLAG(BLOCK_BA), |
| 66 | FLAG(PS_DRIVER), |
| 67 | FLAG(PSPOLL), |
| 68 | FLAG(TDLS_PEER), |
| 69 | FLAG(TDLS_PEER_AUTH), |
| 70 | FLAG(TDLS_INITIATOR), |
| 71 | FLAG(TDLS_CHAN_SWITCH), |
| 72 | FLAG(TDLS_OFF_CHANNEL), |
| 73 | FLAG(TDLS_WIDER_BW), |
| 74 | FLAG(UAPSD), |
| 75 | FLAG(SP), |
| 76 | FLAG(4ADDR_EVENT), |
| 77 | FLAG(INSERTED), |
| 78 | FLAG(RATE_CONTROL), |
| 79 | FLAG(TOFFSET_KNOWN), |
| 80 | FLAG(MPSP_OWNER), |
| 81 | FLAG(MPSP_RECIPIENT), |
| 82 | FLAG(PS_DELIVER), |
| 83 | #undef FLAG |
| 84 | }; |
| 85 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 86 | static ssize_t sta_flags_read(struct file *file, char __user *userbuf, |
| 87 | size_t count, loff_t *ppos) |
| 88 | { |
Johannes Berg | c84387d | 2016-03-17 15:02:54 +0200 | [diff] [blame] | 89 | char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf; |
| 90 | char *end = buf + sizeof(buf) - 1; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 91 | struct sta_info *sta = file->private_data; |
Johannes Berg | c84387d | 2016-03-17 15:02:54 +0200 | [diff] [blame] | 92 | unsigned int flg; |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 93 | |
Johannes Berg | c84387d | 2016-03-17 15:02:54 +0200 | [diff] [blame] | 94 | BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS); |
Johannes Berg | 5bade10 | 2011-09-29 16:04:37 +0200 | [diff] [blame] | 95 | |
Johannes Berg | c84387d | 2016-03-17 15:02:54 +0200 | [diff] [blame] | 96 | for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) { |
| 97 | if (test_sta_flag(sta, flg)) |
| 98 | pos += scnprintf(pos, end - pos, "%s\n", |
| 99 | sta_flag_names[flg]); |
| 100 | } |
| 101 | |
| 102 | return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 103 | } |
| 104 | STA_OPS(flags); |
| 105 | |
| 106 | static ssize_t sta_num_ps_buf_frames_read(struct file *file, |
| 107 | char __user *userbuf, |
| 108 | size_t count, loff_t *ppos) |
| 109 | { |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 110 | struct sta_info *sta = file->private_data; |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 111 | char buf[17*IEEE80211_NUM_ACS], *p = buf; |
| 112 | int ac; |
| 113 | |
| 114 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) |
| 115 | p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, |
| 116 | skb_queue_len(&sta->ps_tx_buf[ac]) + |
| 117 | skb_queue_len(&sta->tx_filtered[ac])); |
| 118 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 119 | } |
| 120 | STA_OPS(num_ps_buf_frames); |
| 121 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 122 | static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, |
| 123 | size_t count, loff_t *ppos) |
| 124 | { |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 125 | char buf[15*IEEE80211_NUM_TIDS], *p = buf; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 126 | int i; |
| 127 | struct sta_info *sta = file->private_data; |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 128 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 129 | p += scnprintf(p, sizeof(buf)+buf-p, "%x ", |
Zhu Yi | ba9b07d | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 130 | le16_to_cpu(sta->last_seq_ctrl[i])); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 131 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
| 132 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 133 | } |
| 134 | STA_OPS(last_seq_ctrl); |
| 135 | |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 136 | static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, |
| 137 | size_t count, loff_t *ppos) |
| 138 | { |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 139 | char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 140 | int i; |
| 141 | struct sta_info *sta = file->private_data; |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 142 | struct tid_ampdu_rx *tid_rx; |
| 143 | struct tid_ampdu_tx *tid_tx; |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 144 | |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 145 | rcu_read_lock(); |
| 146 | |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 147 | p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 148 | sta->ampdu_mlme.dialog_token_allocator + 1); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 149 | p += scnprintf(p, sizeof(buf) + buf - p, |
Johannes Berg | 14b058b | 2014-08-05 09:34:05 +0200 | [diff] [blame] | 150 | "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 151 | |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 152 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) { |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 153 | tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); |
| 154 | tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); |
| 155 | |
| 156 | p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); |
| 157 | p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 158 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 159 | tid_rx ? tid_rx->dialog_token : 0); |
| 160 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", |
| 161 | tid_rx ? tid_rx->ssn : 0); |
| 162 | |
| 163 | p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); |
| 164 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", |
| 165 | tid_tx ? tid_tx->dialog_token : 0); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 166 | p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 167 | tid_tx ? skb_queue_len(&tid_tx->pending) : 0); |
Pavel Roskin | e0b20f1 | 2010-01-30 19:55:27 -0500 | [diff] [blame] | 168 | p += scnprintf(p, sizeof(buf) + buf - p, "\n"); |
Johannes Berg | 386aa23 | 2009-06-17 17:28:45 +0200 | [diff] [blame] | 169 | } |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 170 | rcu_read_unlock(); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 171 | |
| 172 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 173 | } |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 174 | |
| 175 | static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, |
| 176 | size_t count, loff_t *ppos) |
| 177 | { |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 178 | char _buf[25] = {}, *buf = _buf; |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 179 | struct sta_info *sta = file->private_data; |
| 180 | bool start, tx; |
| 181 | unsigned long tid; |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 182 | char *pos; |
| 183 | int ret, timeout = 5000; |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 184 | |
| 185 | if (count > sizeof(_buf)) |
| 186 | return -EINVAL; |
| 187 | |
| 188 | if (copy_from_user(buf, userbuf, count)) |
| 189 | return -EFAULT; |
| 190 | |
| 191 | buf[sizeof(_buf) - 1] = '\0'; |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 192 | pos = buf; |
| 193 | buf = strsep(&pos, " "); |
| 194 | if (!buf) |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 195 | return -EINVAL; |
| 196 | |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 197 | if (!strcmp(buf, "tx")) |
| 198 | tx = true; |
| 199 | else if (!strcmp(buf, "rx")) |
| 200 | tx = false; |
| 201 | else |
| 202 | return -EINVAL; |
| 203 | |
| 204 | buf = strsep(&pos, " "); |
| 205 | if (!buf) |
| 206 | return -EINVAL; |
| 207 | if (!strcmp(buf, "start")) { |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 208 | start = true; |
| 209 | if (!tx) |
| 210 | return -EINVAL; |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 211 | } else if (!strcmp(buf, "stop")) { |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 212 | start = false; |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 213 | } else { |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 214 | return -EINVAL; |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | buf = strsep(&pos, " "); |
| 218 | if (!buf) |
| 219 | return -EINVAL; |
| 220 | if (sscanf(buf, "timeout=%d", &timeout) == 1) { |
| 221 | buf = strsep(&pos, " "); |
| 222 | if (!buf || !tx || !start) |
| 223 | return -EINVAL; |
| 224 | } |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 225 | |
Abhijit Pawar | 4b5511e | 2012-12-09 23:12:28 +0000 | [diff] [blame] | 226 | ret = kstrtoul(buf, 0, &tid); |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 227 | if (ret || tid >= IEEE80211_NUM_TIDS) |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 228 | return -EINVAL; |
| 229 | |
| 230 | if (tx) { |
| 231 | if (start) |
Sara Sharon | 1e0bbeb | 2016-03-09 13:27:09 +0200 | [diff] [blame] | 232 | ret = ieee80211_start_tx_ba_session(&sta->sta, tid, |
| 233 | timeout); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 234 | else |
Johannes Berg | 6a8579d | 2010-05-27 14:41:07 +0200 | [diff] [blame] | 235 | ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 236 | } else { |
Johannes Berg | 53f73c0 | 2010-10-05 19:37:40 +0200 | [diff] [blame] | 237 | __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, |
| 238 | 3, true); |
Johannes Berg | a75b436 | 2010-05-01 18:53:51 +0200 | [diff] [blame] | 239 | ret = 0; |
| 240 | } |
| 241 | |
| 242 | return ret ?: count; |
| 243 | } |
| 244 | STA_OPS_RW(agg_status); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 245 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 246 | static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, |
| 247 | size_t count, loff_t *ppos) |
| 248 | { |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 249 | #define PRINT_HT_CAP(_cond, _str) \ |
| 250 | do { \ |
| 251 | if (_cond) \ |
| 252 | p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ |
| 253 | } while (0) |
Pavel Roskin | 4c82bf8 | 2010-01-30 19:55:09 -0500 | [diff] [blame] | 254 | char buf[512], *p = buf; |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 255 | int i; |
| 256 | struct sta_info *sta = file->private_data; |
| 257 | struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; |
| 258 | |
| 259 | p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", |
| 260 | htc->ht_supported ? "" : "not "); |
| 261 | if (htc->ht_supported) { |
Luis R. Rodriguez | cb136f5 | 2009-12-07 14:01:28 -0500 | [diff] [blame] | 262 | 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] | 263 | |
Luis R. Rodriguez | c15cf5f | 2010-04-08 16:08:46 -0400 | [diff] [blame] | 264 | PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 265 | PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); |
| 266 | PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); |
| 267 | |
| 268 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); |
| 269 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); |
| 270 | PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); |
| 271 | |
| 272 | PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); |
| 273 | PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); |
| 274 | PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); |
| 275 | PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); |
| 276 | |
| 277 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); |
| 278 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); |
| 279 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); |
| 280 | PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); |
| 281 | |
| 282 | PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); |
| 283 | |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 284 | PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " |
Ben Greear | 904603f | 2011-11-17 14:53:36 -0800 | [diff] [blame] | 285 | "3839 bytes"); |
| 286 | PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " |
Luis R. Rodriguez | 7db94e2 | 2009-12-07 14:54:45 -0500 | [diff] [blame] | 287 | "7935 bytes"); |
| 288 | |
| 289 | /* |
| 290 | * For beacons and probe response this would mean the BSS |
| 291 | * does or does not allow the usage of DSSS/CCK HT40. |
| 292 | * Otherwise it means the STA does or does not use |
| 293 | * DSSS/CCK HT40. |
| 294 | */ |
| 295 | PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); |
| 296 | PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); |
| 297 | |
| 298 | /* BIT(13) is reserved */ |
| 299 | |
| 300 | PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); |
| 301 | |
| 302 | PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); |
| 303 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 304 | p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", |
| 305 | htc->ampdu_factor, htc->ampdu_density); |
| 306 | p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); |
Luis R. Rodriguez | 9da3e06 | 2009-12-07 15:57:50 -0500 | [diff] [blame] | 307 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 308 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) |
| 309 | p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", |
| 310 | htc->mcs.rx_mask[i]); |
Luis R. Rodriguez | 9da3e06 | 2009-12-07 15:57:50 -0500 | [diff] [blame] | 311 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
| 312 | |
| 313 | /* If not set this is meaningless */ |
| 314 | if (le16_to_cpu(htc->mcs.rx_highest)) { |
| 315 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 316 | "MCS rx highest: %d Mbps\n", |
| 317 | le16_to_cpu(htc->mcs.rx_highest)); |
| 318 | } |
| 319 | |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 320 | p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", |
| 321 | htc->mcs.tx_params); |
| 322 | } |
| 323 | |
| 324 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 325 | } |
| 326 | STA_OPS(ht_capa); |
| 327 | |
Johannes Berg | 90fcba6 | 2013-03-01 13:36:24 +0100 | [diff] [blame] | 328 | static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, |
| 329 | size_t count, loff_t *ppos) |
| 330 | { |
| 331 | char buf[128], *p = buf; |
| 332 | struct sta_info *sta = file->private_data; |
| 333 | struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; |
| 334 | |
| 335 | p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", |
| 336 | vhtc->vht_supported ? "" : "not "); |
| 337 | if (vhtc->vht_supported) { |
| 338 | p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap); |
| 339 | |
| 340 | p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", |
| 341 | le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); |
| 342 | if (vhtc->vht_mcs.rx_highest) |
| 343 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 344 | "MCS RX highest: %d Mbps\n", |
| 345 | le16_to_cpu(vhtc->vht_mcs.rx_highest)); |
| 346 | p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", |
| 347 | le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); |
| 348 | if (vhtc->vht_mcs.tx_highest) |
| 349 | p += scnprintf(p, sizeof(buf)+buf-p, |
| 350 | "MCS TX highest: %d Mbps\n", |
| 351 | le16_to_cpu(vhtc->vht_mcs.tx_highest)); |
| 352 | } |
| 353 | |
| 354 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); |
| 355 | } |
| 356 | STA_OPS(vht_capa); |
| 357 | |
Saravana | 1f2e651 | 2012-11-29 19:54:19 +0530 | [diff] [blame] | 358 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 359 | #define DEBUGFS_ADD(name) \ |
Johannes Berg | 7bcfaf2 | 2009-10-27 12:59:03 +0100 | [diff] [blame] | 360 | debugfs_create_file(#name, 0400, \ |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 361 | sta->debugfs_dir, sta, &sta_ ##name## _ops); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 362 | |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 363 | #define DEBUGFS_ADD_COUNTER(name, field) \ |
| 364 | if (sizeof(sta->field) == sizeof(u32)) \ |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 365 | debugfs_create_u32(#name, 0400, sta->debugfs_dir, \ |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 366 | (u32 *) &sta->field); \ |
| 367 | else \ |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 368 | debugfs_create_u64(#name, 0400, sta->debugfs_dir, \ |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 369 | (u64 *) &sta->field); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 370 | |
| 371 | void ieee80211_sta_debugfs_add(struct sta_info *sta) |
| 372 | { |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 373 | struct ieee80211_local *local = sta->local; |
| 374 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
Ben Greear | 295bafb | 2010-09-22 20:29:01 -0700 | [diff] [blame] | 375 | struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; |
Johannes Berg | 0c68ae26 | 2008-10-27 15:56:10 -0700 | [diff] [blame] | 376 | u8 mac[3*ETH_ALEN]; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 377 | |
| 378 | if (!stations_dir) |
| 379 | return; |
| 380 | |
Johannes Berg | 0c68ae26 | 2008-10-27 15:56:10 -0700 | [diff] [blame] | 381 | snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 382 | |
Johannes Berg | 63044e9 | 2008-10-07 12:04:29 +0200 | [diff] [blame] | 383 | /* |
| 384 | * This might fail due to a race condition: |
| 385 | * When mac80211 unlinks a station, the debugfs entries |
| 386 | * remain, but it is already possible to link a new |
| 387 | * station with the same address which triggers adding |
| 388 | * it to debugfs; therefore, if the old station isn't |
| 389 | * destroyed quickly enough the old station's debugfs |
| 390 | * dir might still be around. |
| 391 | */ |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 392 | sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); |
| 393 | if (!sta->debugfs_dir) |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 394 | return; |
| 395 | |
| 396 | DEBUGFS_ADD(flags); |
| 397 | DEBUGFS_ADD(num_ps_buf_frames); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 398 | DEBUGFS_ADD(last_seq_ctrl); |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 399 | DEBUGFS_ADD(agg_status); |
Johannes Berg | 64491f0 | 2009-11-19 14:26:11 +0100 | [diff] [blame] | 400 | DEBUGFS_ADD(ht_capa); |
Johannes Berg | 90fcba6 | 2013-03-01 13:36:24 +0100 | [diff] [blame] | 401 | DEBUGFS_ADD(vht_capa); |
Felix Fietkau | 2826bcd | 2010-06-02 02:57:34 +0200 | [diff] [blame] | 402 | |
Johannes Berg | e5a9f8d | 2015-10-16 17:54:47 +0200 | [diff] [blame] | 403 | DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); |
| 404 | DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); |
| 405 | DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered); |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 406 | |
Johannes Berg | 7cf1f14 | 2013-07-12 10:40:31 +0200 | [diff] [blame] | 407 | if (sizeof(sta->driver_buffered_tids) == sizeof(u32)) |
| 408 | debugfs_create_x32("driver_buffered_tids", 0400, |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 409 | sta->debugfs_dir, |
Johannes Berg | 7cf1f14 | 2013-07-12 10:40:31 +0200 | [diff] [blame] | 410 | (u32 *)&sta->driver_buffered_tids); |
| 411 | else |
| 412 | debugfs_create_x64("driver_buffered_tids", 0400, |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 413 | sta->debugfs_dir, |
Johannes Berg | 7cf1f14 | 2013-07-12 10:40:31 +0200 | [diff] [blame] | 414 | (u64 *)&sta->driver_buffered_tids); |
| 415 | |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 416 | drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | void ieee80211_sta_debugfs_remove(struct sta_info *sta) |
| 420 | { |
Sujith Manoharan | 77d2ece | 2012-11-20 08:46:02 +0530 | [diff] [blame] | 421 | struct ieee80211_local *local = sta->local; |
| 422 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
| 423 | |
Johannes Berg | fc4a25c | 2016-04-05 11:59:05 +0200 | [diff] [blame] | 424 | drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); |
| 425 | debugfs_remove_recursive(sta->debugfs_dir); |
| 426 | sta->debugfs_dir = NULL; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 427 | } |