1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright 2003-2005 Devicescape Software, Inc.
4 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2014 Intel Mobile Communications GmbH
7 * Copyright(c) 2016 Intel Deutschland GmbH
8 * Copyright (C) 2018 - 2019 Intel Corporation
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"
17 #include "driver-ops.h"
18
19 /* sta attributtes */
20
21 #define STA_READ(name, field, format_string) \
22 static ssize_t sta_ ##name## _read(struct file *file, \
23 char __user *userbuf, \
24 size_t count, loff_t *ppos) \
25 { \
26 struct sta_info *sta = file->private_data; \
27 return mac80211_format_buffer(userbuf, count, ppos, \
28 format_string, sta->field); \
29 }
30 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
31
32 #define STA_OPS(name) \
33 static const struct file_operations sta_ ##name## _ops = { \
34 .read = sta_##name##_read, \
35 .open = simple_open, \
36 .llseek = generic_file_llseek, \
37 }
38
39 #define STA_OPS_RW(name) \
40 static const struct file_operations sta_ ##name## _ops = { \
41 .read = sta_##name##_read, \
42 .write = sta_##name##_write, \
43 .open = simple_open, \
44 .llseek = generic_file_llseek, \
45 }
46
47 #define STA_FILE(name, field, format) \
48 STA_READ_##format(name, field) \
49 STA_OPS(name)
50
51 STA_FILE(aid, sta.aid, D);
52
53 static const char * const sta_flag_names[] = {
54 #define FLAG(F) [WLAN_STA_##F] = #F
55 FLAG(AUTH),
56 FLAG(ASSOC),
57 FLAG(PS_STA),
58 FLAG(AUTHORIZED),
59 FLAG(SHORT_PREAMBLE),
60 FLAG(WDS),
61 FLAG(CLEAR_PS_FILT),
62 FLAG(MFP),
63 FLAG(BLOCK_BA),
64 FLAG(PS_DRIVER),
65 FLAG(PSPOLL),
66 FLAG(TDLS_PEER),
67 FLAG(TDLS_PEER_AUTH),
68 FLAG(TDLS_INITIATOR),
69 FLAG(TDLS_CHAN_SWITCH),
70 FLAG(TDLS_OFF_CHANNEL),
71 FLAG(TDLS_WIDER_BW),
72 FLAG(UAPSD),
73 FLAG(SP),
74 FLAG(4ADDR_EVENT),
75 FLAG(INSERTED),
76 FLAG(RATE_CONTROL),
77 FLAG(TOFFSET_KNOWN),
78 FLAG(MPSP_OWNER),
79 FLAG(MPSP_RECIPIENT),
80 FLAG(PS_DELIVER),
81 #undef FLAG
82 };
83
sta_flags_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)84 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
85 size_t count, loff_t *ppos)
86 {
87 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
88 char *end = buf + sizeof(buf) - 1;
89 struct sta_info *sta = file->private_data;
90 unsigned int flg;
91
92 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
93
94 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
95 if (test_sta_flag(sta, flg))
96 pos += scnprintf(pos, end - pos, "%s\n",
97 sta_flag_names[flg]);
98 }
99
100 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
101 }
102 STA_OPS(flags);
103
sta_num_ps_buf_frames_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)104 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
105 char __user *userbuf,
106 size_t count, loff_t *ppos)
107 {
108 struct sta_info *sta = file->private_data;
109 char buf[17*IEEE80211_NUM_ACS], *p = buf;
110 int ac;
111
112 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
113 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
114 skb_queue_len(&sta->ps_tx_buf[ac]) +
115 skb_queue_len(&sta->tx_filtered[ac]));
116 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
117 }
118 STA_OPS(num_ps_buf_frames);
119
sta_last_seq_ctrl_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)120 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
121 size_t count, loff_t *ppos)
122 {
123 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
124 int i;
125 struct sta_info *sta = file->private_data;
126 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
127 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
128 le16_to_cpu(sta->last_seq_ctrl[i]));
129 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
130 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
131 }
132 STA_OPS(last_seq_ctrl);
133
134 #define AQM_TXQ_ENTRY_LEN 130
135
sta_aqm_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)136 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
137 size_t count, loff_t *ppos)
138 {
139 struct sta_info *sta = file->private_data;
140 struct ieee80211_local *local = sta->local;
141 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
142 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
143 struct txq_info *txqi;
144 ssize_t rv;
145 int i;
146
147 if (!buf)
148 return -ENOMEM;
149
150 spin_lock_bh(&local->fq.lock);
151 rcu_read_lock();
152
153 p += scnprintf(p,
154 bufsz+buf-p,
155 "target %uus interval %uus ecn %s\n",
156 codel_time_to_us(sta->cparams.target),
157 codel_time_to_us(sta->cparams.interval),
158 sta->cparams.ecn ? "yes" : "no");
159 p += scnprintf(p,
160 bufsz+buf-p,
161 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
162
163 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
164 if (!sta->sta.txq[i])
165 continue;
166 txqi = to_txq_info(sta->sta.txq[i]);
167 p += scnprintf(p, bufsz+buf-p,
168 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
169 txqi->txq.tid,
170 txqi->txq.ac,
171 txqi->tin.backlog_bytes,
172 txqi->tin.backlog_packets,
173 txqi->tin.flows,
174 txqi->cstats.drop_count,
175 txqi->cstats.ecn_mark,
176 txqi->tin.overlimit,
177 txqi->tin.collisions,
178 txqi->tin.tx_bytes,
179 txqi->tin.tx_packets,
180 txqi->flags,
181 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
182 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
183 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
184 }
185
186 rcu_read_unlock();
187 spin_unlock_bh(&local->fq.lock);
188
189 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
190 kfree(buf);
191 return rv;
192 }
193 STA_OPS(aqm);
194
sta_airtime_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)195 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
196 size_t count, loff_t *ppos)
197 {
198 struct sta_info *sta = file->private_data;
199 struct ieee80211_local *local = sta->sdata->local;
200 size_t bufsz = 200;
201 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
202 u64 rx_airtime = 0, tx_airtime = 0;
203 s64 deficit[IEEE80211_NUM_ACS];
204 ssize_t rv;
205 int ac;
206
207 if (!buf)
208 return -ENOMEM;
209
210 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
211 spin_lock_bh(&local->active_txq_lock[ac]);
212 rx_airtime += sta->airtime[ac].rx_airtime;
213 tx_airtime += sta->airtime[ac].tx_airtime;
214 deficit[ac] = sta->airtime[ac].deficit;
215 spin_unlock_bh(&local->active_txq_lock[ac]);
216 }
217
218 p += scnprintf(p, bufsz + buf - p,
219 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
220 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
221 rx_airtime,
222 tx_airtime,
223 sta->airtime_weight,
224 deficit[0],
225 deficit[1],
226 deficit[2],
227 deficit[3]);
228
229 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
230 kfree(buf);
231 return rv;
232 }
233
sta_airtime_write(struct file * file,const char __user * userbuf,size_t count,loff_t * ppos)234 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
235 size_t count, loff_t *ppos)
236 {
237 struct sta_info *sta = file->private_data;
238 struct ieee80211_local *local = sta->sdata->local;
239 int ac;
240
241 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
242 spin_lock_bh(&local->active_txq_lock[ac]);
243 sta->airtime[ac].rx_airtime = 0;
244 sta->airtime[ac].tx_airtime = 0;
245 sta->airtime[ac].deficit = sta->airtime_weight;
246 spin_unlock_bh(&local->active_txq_lock[ac]);
247 }
248
249 return count;
250 }
251 STA_OPS_RW(airtime);
252
sta_agg_status_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)253 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
254 size_t count, loff_t *ppos)
255 {
256 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
257 int i;
258 struct sta_info *sta = file->private_data;
259 struct tid_ampdu_rx *tid_rx;
260 struct tid_ampdu_tx *tid_tx;
261
262 rcu_read_lock();
263
264 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
265 sta->ampdu_mlme.dialog_token_allocator + 1);
266 p += scnprintf(p, sizeof(buf) + buf - p,
267 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
268
269 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
270 bool tid_rx_valid;
271
272 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
273 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
274 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
275
276 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
277 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
278 tid_rx_valid);
279 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
280 tid_rx_valid ?
281 sta->ampdu_mlme.tid_rx_token[i] : 0);
282 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
283 tid_rx ? tid_rx->ssn : 0);
284
285 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
286 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
287 tid_tx ? tid_tx->dialog_token : 0);
288 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
289 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
290 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
291 }
292 rcu_read_unlock();
293
294 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
295 }
296
sta_agg_status_write(struct file * file,const char __user * userbuf,size_t count,loff_t * ppos)297 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
298 size_t count, loff_t *ppos)
299 {
300 char _buf[25] = {}, *buf = _buf;
301 struct sta_info *sta = file->private_data;
302 bool start, tx;
303 unsigned long tid;
304 char *pos;
305 int ret, timeout = 5000;
306
307 if (count > sizeof(_buf))
308 return -EINVAL;
309
310 if (copy_from_user(buf, userbuf, count))
311 return -EFAULT;
312
313 buf[sizeof(_buf) - 1] = '\0';
314 pos = buf;
315 buf = strsep(&pos, " ");
316 if (!buf)
317 return -EINVAL;
318
319 if (!strcmp(buf, "tx"))
320 tx = true;
321 else if (!strcmp(buf, "rx"))
322 tx = false;
323 else
324 return -EINVAL;
325
326 buf = strsep(&pos, " ");
327 if (!buf)
328 return -EINVAL;
329 if (!strcmp(buf, "start")) {
330 start = true;
331 if (!tx)
332 return -EINVAL;
333 } else if (!strcmp(buf, "stop")) {
334 start = false;
335 } else {
336 return -EINVAL;
337 }
338
339 buf = strsep(&pos, " ");
340 if (!buf)
341 return -EINVAL;
342 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
343 buf = strsep(&pos, " ");
344 if (!buf || !tx || !start)
345 return -EINVAL;
346 }
347
348 ret = kstrtoul(buf, 0, &tid);
349 if (ret || tid >= IEEE80211_NUM_TIDS)
350 return -EINVAL;
351
352 if (tx) {
353 if (start)
354 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
355 timeout);
356 else
357 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
358 } else {
359 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
360 3, true);
361 ret = 0;
362 }
363
364 return ret ?: count;
365 }
366 STA_OPS_RW(agg_status);
367
sta_ht_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)368 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
369 size_t count, loff_t *ppos)
370 {
371 #define PRINT_HT_CAP(_cond, _str) \
372 do { \
373 if (_cond) \
374 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
375 } while (0)
376 char buf[512], *p = buf;
377 int i;
378 struct sta_info *sta = file->private_data;
379 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
380
381 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
382 htc->ht_supported ? "" : "not ");
383 if (htc->ht_supported) {
384 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
385
386 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
387 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
388 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
389
390 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
391 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
392 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
393
394 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
395 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
396 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
397 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
398
399 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
400 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
401 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
402 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
403
404 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
405
406 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
407 "3839 bytes");
408 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
409 "7935 bytes");
410
411 /*
412 * For beacons and probe response this would mean the BSS
413 * does or does not allow the usage of DSSS/CCK HT40.
414 * Otherwise it means the STA does or does not use
415 * DSSS/CCK HT40.
416 */
417 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
418 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
419
420 /* BIT(13) is reserved */
421
422 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
423
424 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
425
426 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
427 htc->ampdu_factor, htc->ampdu_density);
428 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
429
430 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
431 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
432 htc->mcs.rx_mask[i]);
433 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
434
435 /* If not set this is meaningless */
436 if (le16_to_cpu(htc->mcs.rx_highest)) {
437 p += scnprintf(p, sizeof(buf)+buf-p,
438 "MCS rx highest: %d Mbps\n",
439 le16_to_cpu(htc->mcs.rx_highest));
440 }
441
442 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
443 htc->mcs.tx_params);
444 }
445
446 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
447 }
448 STA_OPS(ht_capa);
449
sta_vht_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)450 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
451 size_t count, loff_t *ppos)
452 {
453 char buf[512], *p = buf;
454 struct sta_info *sta = file->private_data;
455 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
456
457 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
458 vhtc->vht_supported ? "" : "not ");
459 if (vhtc->vht_supported) {
460 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
461 vhtc->cap);
462 #define PFLAG(a, b) \
463 do { \
464 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
465 p += scnprintf(p, sizeof(buf) + buf - p, \
466 "\t\t%s\n", b); \
467 } while (0)
468
469 switch (vhtc->cap & 0x3) {
470 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
471 p += scnprintf(p, sizeof(buf) + buf - p,
472 "\t\tMAX-MPDU-3895\n");
473 break;
474 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
475 p += scnprintf(p, sizeof(buf) + buf - p,
476 "\t\tMAX-MPDU-7991\n");
477 break;
478 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
479 p += scnprintf(p, sizeof(buf) + buf - p,
480 "\t\tMAX-MPDU-11454\n");
481 break;
482 default:
483 p += scnprintf(p, sizeof(buf) + buf - p,
484 "\t\tMAX-MPDU-UNKNOWN\n");
485 }
486 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
487 case 0:
488 p += scnprintf(p, sizeof(buf) + buf - p,
489 "\t\t80Mhz\n");
490 break;
491 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
492 p += scnprintf(p, sizeof(buf) + buf - p,
493 "\t\t160Mhz\n");
494 break;
495 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
496 p += scnprintf(p, sizeof(buf) + buf - p,
497 "\t\t80+80Mhz\n");
498 break;
499 default:
500 p += scnprintf(p, sizeof(buf) + buf - p,
501 "\t\tUNKNOWN-MHZ: 0x%x\n",
502 (vhtc->cap >> 2) & 0x3);
503 }
504 PFLAG(RXLDPC, "RXLDPC");
505 PFLAG(SHORT_GI_80, "SHORT-GI-80");
506 PFLAG(SHORT_GI_160, "SHORT-GI-160");
507 PFLAG(TXSTBC, "TXSTBC");
508 p += scnprintf(p, sizeof(buf) + buf - p,
509 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
510 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
511 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
512 p += scnprintf(p, sizeof(buf) + buf - p,
513 "\t\tBEAMFORMEE-STS: 0x%x\n",
514 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
515 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
516 p += scnprintf(p, sizeof(buf) + buf - p,
517 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
518 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
519 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
520 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
521 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
522 PFLAG(VHT_TXOP_PS, "TXOP-PS");
523 PFLAG(HTC_VHT, "HTC-VHT");
524 p += scnprintf(p, sizeof(buf) + buf - p,
525 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
526 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
527 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
528 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
529 "LINK-ADAPTATION-VHT-UNSOL-MFB");
530 p += scnprintf(p, sizeof(buf) + buf - p,
531 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
532 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
533 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
534 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
535
536 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
537 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
538 if (vhtc->vht_mcs.rx_highest)
539 p += scnprintf(p, sizeof(buf)+buf-p,
540 "MCS RX highest: %d Mbps\n",
541 le16_to_cpu(vhtc->vht_mcs.rx_highest));
542 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
543 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
544 if (vhtc->vht_mcs.tx_highest)
545 p += scnprintf(p, sizeof(buf)+buf-p,
546 "MCS TX highest: %d Mbps\n",
547 le16_to_cpu(vhtc->vht_mcs.tx_highest));
548 #undef PFLAG
549 }
550
551 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
552 }
553 STA_OPS(vht_capa);
554
sta_he_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)555 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
556 size_t count, loff_t *ppos)
557 {
558 char *buf, *p;
559 size_t buf_sz = PAGE_SIZE;
560 struct sta_info *sta = file->private_data;
561 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
562 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
563 u8 ppe_size;
564 u8 *cap;
565 int i;
566 ssize_t ret;
567
568 buf = kmalloc(buf_sz, GFP_KERNEL);
569 if (!buf)
570 return -ENOMEM;
571 p = buf;
572
573 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
574 hec->has_he ? "" : "not ");
575 if (!hec->has_he)
576 goto out;
577
578 cap = hec->he_cap_elem.mac_cap_info;
579 p += scnprintf(p, buf_sz + buf - p,
580 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
581 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
582
583 #define PRINT(fmt, ...) \
584 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
585 ##__VA_ARGS__)
586
587 #define PFLAG(t, n, a, b) \
588 do { \
589 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
590 PRINT("%s", b); \
591 } while (0)
592
593 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
594 do { \
595 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
596 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
597 PRINT(fmt, (s << idx) + (m * idx)); \
598 } while (0)
599
600 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
601 do { \
602 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
603 PRINT("%s", b); \
604 break; \
605 } \
606 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
607 } while (0)
608
609 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
610 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
611 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
612 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
613 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
614 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
615 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
616
617 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
618 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
619 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
620 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
621 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
622 "MULTI-TID-AGG-RX-QOS-%d");
623
624 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
625 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
626 case 0:
627 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
628 break;
629 case 1:
630 PRINT("LINK-ADAPTATION-RESERVED");
631 break;
632 case 2:
633 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
634 break;
635 case 3:
636 PRINT("LINK-ADAPTATION-BOTH");
637 break;
638 }
639 }
640
641 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
642 PFLAG(MAC, 2, TRS, "TRS");
643 PFLAG(MAC, 2, BSR, "BSR");
644 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
645 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
646 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
647 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
648
649 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
650 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
651
652 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
653 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
654 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
655 break;
656 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
657 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
658 break;
659 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
660 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
661 break;
662 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
663 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
664 break;
665 }
666
667 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
668 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
669 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
670
671 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
672 PFLAG(MAC, 4, QTP, "QTP");
673 PFLAG(MAC, 4, BQR, "BQR");
674 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
675 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
676 PFLAG(MAC, 4, OPS, "OPS");
677 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
678
679 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
680
681 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
682 "SUBCHAN-SELECVITE-TRANSMISSION");
683 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
684 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
685 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
686 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
687 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
688
689 cap = hec->he_cap_elem.phy_cap_info;
690 p += scnprintf(p, buf_sz + buf - p,
691 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
692 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
693 cap[7], cap[8], cap[9], cap[10]);
694
695 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
696 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
697 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
698 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
699 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
700 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
701 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
702 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
703 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
704 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
705 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
706 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
707
708 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
709 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
710 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
711 break;
712 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
713 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
714 break;
715 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
716 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
717 break;
718 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
719 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
720 break;
721 }
722
723 PFLAG(PHY, 1, DEVICE_CLASS_A,
724 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
725 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
726 "LDPC-CODING-IN-PAYLOAD");
727 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
728 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
729 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
730
731 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
732 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
733 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
734 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
735 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
736 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
737 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
738
739 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
740 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
741 PRINT("DCM-MAX-CONST-TX-NO-DCM");
742 break;
743 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
744 PRINT("DCM-MAX-CONST-TX-BPSK");
745 break;
746 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
747 PRINT("DCM-MAX-CONST-TX-QPSK");
748 break;
749 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
750 PRINT("DCM-MAX-CONST-TX-16-QAM");
751 break;
752 }
753
754 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
755 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
756
757 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
758 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
759 PRINT("DCM-MAX-CONST-RX-NO-DCM");
760 break;
761 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
762 PRINT("DCM-MAX-CONST-RX-BPSK");
763 break;
764 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
765 PRINT("DCM-MAX-CONST-RX-QPSK");
766 break;
767 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
768 PRINT("DCM-MAX-CONST-RX-16-QAM");
769 break;
770 }
771
772 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
773 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
774 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
775 "RX-HE-MU-PPDU-FROM-NON-AP-STA");
776 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
777
778 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
779 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
780
781 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
782 "BEAMFORMEE-MAX-STS-UNDER-%d");
783 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
784 "BEAMFORMEE-MAX-STS-ABOVE-%d");
785
786 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
787 "NUM-SND-DIM-UNDER-80MHZ-%d");
788 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
789 "NUM-SND-DIM-ABOVE-80MHZ-%d");
790 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
791 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
792
793 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
794 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
795 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
796 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
797 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
798 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
799 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
800 "PARTIAL-BANDWIDTH-DL-MUMIMO");
801 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
802
803 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
804 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
805 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
806 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
807 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
808 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
809 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
810
811 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
812 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
813 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
814 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
815 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
816 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
817 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
818 "HE-ER-SU-1XLTF-AND-08-US-GI");
819 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
820 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
821
822 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
823 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
824 PRINT("DCM-MAX-RU-242");
825 break;
826 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
827 PRINT("DCM-MAX-RU-484");
828 break;
829 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
830 PRINT("DCM-MAX-RU-996");
831 break;
832 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
833 PRINT("DCM-MAX-RU-2x996");
834 break;
835 }
836
837 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
838 "LONGER-THAN-16-SIGB-OFDM-SYM");
839 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
840 "NON-TRIGGERED-CQI-FEEDBACK");
841 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
842 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
843 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
844 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
845 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
846 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
847 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
848 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
849
850 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
851 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
852 PRINT("NOMINAL-PACKET-PADDING-0US");
853 break;
854 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
855 PRINT("NOMINAL-PACKET-PADDING-8US");
856 break;
857 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
858 PRINT("NOMINAL-PACKET-PADDING-16US");
859 break;
860 }
861
862 #undef PFLAG_RANGE_DEFAULT
863 #undef PFLAG_RANGE
864 #undef PFLAG
865
866 #define PRINT_NSS_SUPP(f, n) \
867 do { \
868 int _i; \
869 u16 v = le16_to_cpu(nss->f); \
870 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
871 for (_i = 0; _i < 8; _i += 2) { \
872 switch ((v >> _i) & 0x3) { \
873 case 0: \
874 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
875 break; \
876 case 1: \
877 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
878 break; \
879 case 2: \
880 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
881 break; \
882 case 3: \
883 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
884 break; \
885 } \
886 } \
887 } while (0)
888
889 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
890 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
891
892 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
893 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
894 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
895 }
896
897 if (cap[0] &
898 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
899 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
900 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
901 }
902
903 #undef PRINT_NSS_SUPP
904 #undef PRINT
905
906 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
907 goto out;
908
909 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
910 hec->ppe_thres[0]);
911
912 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
913 for (i = 1; i < ppe_size; i++) {
914 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
915 hec->ppe_thres[i]);
916 }
917 p += scnprintf(p, buf_sz + buf - p, "\n");
918
919 out:
920 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
921 kfree(buf);
922 return ret;
923 }
924 STA_OPS(he_capa);
925
926 #define DEBUGFS_ADD(name) \
927 debugfs_create_file(#name, 0400, \
928 sta->debugfs_dir, sta, &sta_ ##name## _ops);
929
930 #define DEBUGFS_ADD_COUNTER(name, field) \
931 if (sizeof(sta->field) == sizeof(u32)) \
932 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
933 (u32 *) &sta->field); \
934 else \
935 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
936 (u64 *) &sta->field);
937
ieee80211_sta_debugfs_add(struct sta_info * sta)938 void ieee80211_sta_debugfs_add(struct sta_info *sta)
939 {
940 struct ieee80211_local *local = sta->local;
941 struct ieee80211_sub_if_data *sdata = sta->sdata;
942 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
943 u8 mac[3*ETH_ALEN];
944
945 if (!stations_dir)
946 return;
947
948 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
949
950 /*
951 * This might fail due to a race condition:
952 * When mac80211 unlinks a station, the debugfs entries
953 * remain, but it is already possible to link a new
954 * station with the same address which triggers adding
955 * it to debugfs; therefore, if the old station isn't
956 * destroyed quickly enough the old station's debugfs
957 * dir might still be around.
958 */
959 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
960
961 DEBUGFS_ADD(flags);
962 DEBUGFS_ADD(aid);
963 DEBUGFS_ADD(num_ps_buf_frames);
964 DEBUGFS_ADD(last_seq_ctrl);
965 DEBUGFS_ADD(agg_status);
966 DEBUGFS_ADD(ht_capa);
967 DEBUGFS_ADD(vht_capa);
968 DEBUGFS_ADD(he_capa);
969
970 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
971 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
972 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
973
974 if (local->ops->wake_tx_queue)
975 DEBUGFS_ADD(aqm);
976
977 if (wiphy_ext_feature_isset(local->hw.wiphy,
978 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
979 DEBUGFS_ADD(airtime);
980
981 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
982 debugfs_create_x32("driver_buffered_tids", 0400,
983 sta->debugfs_dir,
984 (u32 *)&sta->driver_buffered_tids);
985 else
986 debugfs_create_x64("driver_buffered_tids", 0400,
987 sta->debugfs_dir,
988 (u64 *)&sta->driver_buffered_tids);
989
990 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
991 }
992
ieee80211_sta_debugfs_remove(struct sta_info * sta)993 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
994 {
995 debugfs_remove_recursive(sta->debugfs_dir);
996 sta->debugfs_dir = NULL;
997 }
998