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7#include <linux/vmalloc.h>
8#include <linux/ieee80211.h>
9#include <linux/netdevice.h>
10
11#include "mvm.h"
12#include "sta.h"
13#include "iwl-io.h"
14#include "debugfs.h"
15#include "iwl-modparams.h"
16#include "fw/error-dump.h"
17
18static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
19 char __user *user_buf,
20 size_t count, loff_t *ppos)
21{
22 struct iwl_mvm *mvm = file->private_data;
23 char buf[16];
24 int pos, budget;
25
26 if (!iwl_mvm_is_ctdp_supported(mvm))
27 return -EOPNOTSUPP;
28
29 if (!iwl_mvm_firmware_running(mvm) ||
30 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
31 return -EIO;
32
33 mutex_lock(&mvm->mutex);
34 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
35 mutex_unlock(&mvm->mutex);
36
37 if (budget < 0)
38 return budget;
39
40 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
41
42 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
43}
44
45static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
46 size_t count, loff_t *ppos)
47{
48 int ret;
49
50 if (!iwl_mvm_is_ctdp_supported(mvm))
51 return -EOPNOTSUPP;
52
53 if (!iwl_mvm_firmware_running(mvm) ||
54 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
55 return -EIO;
56
57 mutex_lock(&mvm->mutex);
58 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
59 mutex_unlock(&mvm->mutex);
60
61 return ret ?: count;
62}
63
64static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
65 size_t count, loff_t *ppos)
66{
67 if (!iwl_mvm_firmware_running(mvm) ||
68 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
69 return -EIO;
70
71 iwl_mvm_enter_ctkill(mvm);
72
73 return count;
74}
75
76static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
77 size_t count, loff_t *ppos)
78{
79 int ret;
80 u32 flush_arg;
81
82 if (!iwl_mvm_firmware_running(mvm) ||
83 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
84 return -EIO;
85
86 if (kstrtou32(buf, 0, &flush_arg))
87 return -EINVAL;
88
89 if (iwl_mvm_has_new_tx_api(mvm)) {
90 IWL_DEBUG_TX_QUEUES(mvm,
91 "FLUSHING all tids queues on sta_id = %d\n",
92 flush_arg);
93 mutex_lock(&mvm->mutex);
94 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF, 0)
95 ? : count;
96 mutex_unlock(&mvm->mutex);
97 return ret;
98 }
99
100 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
101 flush_arg);
102
103 mutex_lock(&mvm->mutex);
104 ret = iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count;
105 mutex_unlock(&mvm->mutex);
106
107 return ret;
108}
109
110static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
111 size_t count, loff_t *ppos)
112{
113 struct iwl_mvm_sta *mvmsta;
114 int sta_id, drain, ret;
115
116 if (!iwl_mvm_firmware_running(mvm) ||
117 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
118 return -EIO;
119
120 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
121 return -EINVAL;
122 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations)
123 return -EINVAL;
124 if (drain < 0 || drain > 1)
125 return -EINVAL;
126
127 mutex_lock(&mvm->mutex);
128
129 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
130
131 if (!mvmsta)
132 ret = -ENOENT;
133 else
134 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
135
136 mutex_unlock(&mvm->mutex);
137
138 return ret;
139}
140
141static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
142 size_t count, loff_t *ppos)
143{
144 struct iwl_mvm *mvm = file->private_data;
145 const struct fw_img *img;
146 unsigned int ofs, len;
147 size_t ret;
148 u8 *ptr;
149
150 if (!iwl_mvm_firmware_running(mvm))
151 return -EINVAL;
152
153
154 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
155 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
156 len = img->sec[IWL_UCODE_SECTION_DATA].len;
157
158 if (mvm->dbgfs_sram_len) {
159 ofs = mvm->dbgfs_sram_offset;
160 len = mvm->dbgfs_sram_len;
161 }
162
163 ptr = kzalloc(len, GFP_KERNEL);
164 if (!ptr)
165 return -ENOMEM;
166
167 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
168
169 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
170
171 kfree(ptr);
172
173 return ret;
174}
175
176static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
177 size_t count, loff_t *ppos)
178{
179 const struct fw_img *img;
180 u32 offset, len;
181 u32 img_offset, img_len;
182
183 if (!iwl_mvm_firmware_running(mvm))
184 return -EINVAL;
185
186 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
187 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
188 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
189
190 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
191 if ((offset & 0x3) || (len & 0x3))
192 return -EINVAL;
193
194 if (offset + len > img_offset + img_len)
195 return -EINVAL;
196
197 mvm->dbgfs_sram_offset = offset;
198 mvm->dbgfs_sram_len = len;
199 } else {
200 mvm->dbgfs_sram_offset = 0;
201 mvm->dbgfs_sram_len = 0;
202 }
203
204 return count;
205}
206
207static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
208 char __user *user_buf,
209 size_t count, loff_t *ppos)
210{
211 struct iwl_mvm *mvm = file->private_data;
212 char buf[16];
213 int pos;
214
215 if (!mvm->temperature_test)
216 pos = scnprintf(buf , sizeof(buf), "disabled\n");
217 else
218 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
219
220 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
221}
222
223
224
225
226
227
228
229
230static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
231 char *buf, size_t count,
232 loff_t *ppos)
233{
234 int temperature;
235
236 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
237 return -EIO;
238
239 if (kstrtoint(buf, 10, &temperature))
240 return -EINVAL;
241
242 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
243 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
244 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
245 return -EINVAL;
246
247 mutex_lock(&mvm->mutex);
248 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
249 if (!mvm->temperature_test)
250 goto out;
251
252 mvm->temperature_test = false;
253
254
255
256
257 mvm->temperature = 0;
258 } else {
259 mvm->temperature_test = true;
260 mvm->temperature = temperature;
261 }
262 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
263 mvm->temperature_test ? "En" : "Dis" ,
264 mvm->temperature);
265
266 iwl_mvm_tt_handler(mvm);
267
268out:
269 mutex_unlock(&mvm->mutex);
270
271 return count;
272}
273
274static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
275 char __user *user_buf,
276 size_t count, loff_t *ppos)
277{
278 struct iwl_mvm *mvm = file->private_data;
279 char buf[16];
280 int pos, ret;
281 s32 temp;
282
283 if (!iwl_mvm_firmware_running(mvm))
284 return -EIO;
285
286 mutex_lock(&mvm->mutex);
287 ret = iwl_mvm_get_temp(mvm, &temp);
288 mutex_unlock(&mvm->mutex);
289
290 if (ret)
291 return -EIO;
292
293 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
294
295 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
296}
297
298#ifdef CONFIG_ACPI
299static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
300 char __user *user_buf,
301 size_t count, loff_t *ppos)
302{
303 struct iwl_mvm *mvm = file->private_data;
304 char buf[256];
305 int pos = 0;
306 int bufsz = sizeof(buf);
307 int tbl_idx;
308 u8 *value;
309
310 if (!iwl_mvm_firmware_running(mvm))
311 return -EIO;
312
313 mutex_lock(&mvm->mutex);
314 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
315 if (tbl_idx < 0) {
316 mutex_unlock(&mvm->mutex);
317 return tbl_idx;
318 }
319
320 if (!tbl_idx) {
321 pos = scnprintf(buf, bufsz,
322 "SAR geographic profile disabled\n");
323 } else {
324 value = &mvm->fwrt.geo_profiles[tbl_idx - 1].values[0];
325
326 pos += scnprintf(buf + pos, bufsz - pos,
327 "Use geographic profile %d\n", tbl_idx);
328 pos += scnprintf(buf + pos, bufsz - pos,
329 "2.4GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n",
330 value[1], value[2], value[0]);
331 pos += scnprintf(buf + pos, bufsz - pos,
332 "5.2GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n",
333 value[4], value[5], value[3]);
334 }
335 mutex_unlock(&mvm->mutex);
336
337 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
338}
339#endif
340
341static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
342 size_t count, loff_t *ppos)
343{
344 struct iwl_mvm *mvm = file->private_data;
345 struct ieee80211_sta *sta;
346 char buf[400];
347 int i, pos = 0, bufsz = sizeof(buf);
348
349 mutex_lock(&mvm->mutex);
350
351 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
352 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
353 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
354 lockdep_is_held(&mvm->mutex));
355 if (!sta)
356 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
357 else if (IS_ERR(sta))
358 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
359 PTR_ERR(sta));
360 else
361 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
362 sta->addr);
363 }
364
365 mutex_unlock(&mvm->mutex);
366
367 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
368}
369
370static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
371 size_t count, loff_t *ppos)
372{
373 struct ieee80211_sta *sta = file->private_data;
374 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
375 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
376 struct iwl_mvm *mvm = lq_sta->pers.drv;
377 static const size_t bufsz = 2048;
378 char *buff;
379 int desc = 0;
380 ssize_t ret;
381
382 buff = kmalloc(bufsz, GFP_KERNEL);
383 if (!buff)
384 return -ENOMEM;
385
386 mutex_lock(&mvm->mutex);
387
388 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
389 lq_sta->pers.sta_id);
390 desc += scnprintf(buff + desc, bufsz - desc,
391 "fixed rate 0x%X\n",
392 lq_sta->pers.dbg_fixed_rate);
393 desc += scnprintf(buff + desc, bufsz - desc,
394 "A-MPDU size limit %d\n",
395 lq_sta->pers.dbg_agg_frame_count_lim);
396 desc += scnprintf(buff + desc, bufsz - desc,
397 "valid_tx_ant %s%s%s\n",
398 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
399 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "",
400 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : "");
401 desc += scnprintf(buff + desc, bufsz - desc,
402 "last tx rate=0x%X ",
403 lq_sta->last_rate_n_flags);
404
405 desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
406 lq_sta->last_rate_n_flags);
407 if (desc < bufsz - 1)
408 buff[desc++] = '\n';
409 mutex_unlock(&mvm->mutex);
410
411 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
412 kfree(buff);
413 return ret;
414}
415
416static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
417 char *buf, size_t count,
418 loff_t *ppos)
419{
420 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
421 int i;
422 u16 amsdu_len;
423
424 if (kstrtou16(buf, 0, &amsdu_len))
425 return -EINVAL;
426
427
428 if ((amsdu_len && mvmsta->orig_amsdu_len) ||
429 (!!amsdu_len && mvmsta->orig_amsdu_len))
430 return -EBUSY;
431
432 if (amsdu_len) {
433 mvmsta->orig_amsdu_len = sta->max_amsdu_len;
434 sta->max_amsdu_len = amsdu_len;
435 for (i = 0; i < ARRAY_SIZE(sta->max_tid_amsdu_len); i++)
436 sta->max_tid_amsdu_len[i] = amsdu_len;
437 } else {
438 sta->max_amsdu_len = mvmsta->orig_amsdu_len;
439 mvmsta->orig_amsdu_len = 0;
440 }
441 return count;
442}
443
444static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file,
445 char __user *user_buf,
446 size_t count, loff_t *ppos)
447{
448 struct ieee80211_sta *sta = file->private_data;
449 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
450
451 char buf[32];
452 int pos;
453
454 pos = scnprintf(buf, sizeof(buf), "current %d ", sta->max_amsdu_len);
455 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
456 mvmsta->orig_amsdu_len);
457
458 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
459}
460
461static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
462 char __user *user_buf,
463 size_t count, loff_t *ppos)
464{
465 struct iwl_mvm *mvm = file->private_data;
466 char buf[64];
467 int bufsz = sizeof(buf);
468 int pos = 0;
469
470 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
471 mvm->disable_power_off);
472 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
473 mvm->disable_power_off_d3);
474
475 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
476}
477
478static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
479 size_t count, loff_t *ppos)
480{
481 int ret, val;
482
483 if (!iwl_mvm_firmware_running(mvm))
484 return -EIO;
485
486 if (!strncmp("disable_power_off_d0=", buf, 21)) {
487 if (sscanf(buf + 21, "%d", &val) != 1)
488 return -EINVAL;
489 mvm->disable_power_off = val;
490 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
491 if (sscanf(buf + 21, "%d", &val) != 1)
492 return -EINVAL;
493 mvm->disable_power_off_d3 = val;
494 } else {
495 return -EINVAL;
496 }
497
498 mutex_lock(&mvm->mutex);
499 ret = iwl_mvm_power_update_device(mvm);
500 mutex_unlock(&mvm->mutex);
501
502 return ret ?: count;
503}
504
505static
506int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
507 int pos, int bufsz)
508{
509 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
510
511 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
512 BT_MBOX_PRINT(0, LE_PROF1, false);
513 BT_MBOX_PRINT(0, LE_PROF2, false);
514 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
515 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
516 BT_MBOX_PRINT(0, INBAND_S, false);
517 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
518 BT_MBOX_PRINT(0, LE_SCAN, false);
519 BT_MBOX_PRINT(0, LE_ADV, false);
520 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
521 BT_MBOX_PRINT(0, OPEN_CON_1, true);
522
523 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
524
525 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
526 BT_MBOX_PRINT(1, IP_SR, false);
527 BT_MBOX_PRINT(1, LE_MSTR, false);
528 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
529 BT_MBOX_PRINT(1, MSG_TYPE, false);
530 BT_MBOX_PRINT(1, SSN, true);
531
532 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
533
534 BT_MBOX_PRINT(2, SNIFF_ACT, false);
535 BT_MBOX_PRINT(2, PAG, false);
536 BT_MBOX_PRINT(2, INQUIRY, false);
537 BT_MBOX_PRINT(2, CONN, false);
538 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
539 BT_MBOX_PRINT(2, DISC, false);
540 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
541 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
542 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
543 BT_MBOX_PRINT(2, SCO_DURATION, true);
544
545 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
546
547 BT_MBOX_PRINT(3, SCO_STATE, false);
548 BT_MBOX_PRINT(3, SNIFF_STATE, false);
549 BT_MBOX_PRINT(3, A2DP_STATE, false);
550 BT_MBOX_PRINT(3, A2DP_SRC, false);
551 BT_MBOX_PRINT(3, ACL_STATE, false);
552 BT_MBOX_PRINT(3, MSTR_STATE, false);
553 BT_MBOX_PRINT(3, OBX_STATE, false);
554 BT_MBOX_PRINT(3, OPEN_CON_2, false);
555 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
556 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
557 BT_MBOX_PRINT(3, INBAND_P, false);
558 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
559 BT_MBOX_PRINT(3, SSN_2, false);
560 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
561
562 return pos;
563}
564
565static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
566 size_t count, loff_t *ppos)
567{
568 struct iwl_mvm *mvm = file->private_data;
569 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
570 char *buf;
571 int ret, pos = 0, bufsz = sizeof(char) * 1024;
572
573 buf = kmalloc(bufsz, GFP_KERNEL);
574 if (!buf)
575 return -ENOMEM;
576
577 mutex_lock(&mvm->mutex);
578
579 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
580
581 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
582 notif->bt_ci_compliance);
583 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
584 le32_to_cpu(notif->primary_ch_lut));
585 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
586 le32_to_cpu(notif->secondary_ch_lut));
587 pos += scnprintf(buf + pos,
588 bufsz - pos, "bt_activity_grading = %d\n",
589 le32_to_cpu(notif->bt_activity_grading));
590 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
591 notif->rrc_status & 0xF);
592 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
593 notif->ttc_status & 0xF);
594
595 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
596 IWL_MVM_BT_COEX_SYNC2SCO);
597 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
598 IWL_MVM_BT_COEX_MPLUT);
599
600 mutex_unlock(&mvm->mutex);
601
602 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
603 kfree(buf);
604
605 return ret;
606}
607#undef BT_MBOX_PRINT
608
609static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
610 size_t count, loff_t *ppos)
611{
612 struct iwl_mvm *mvm = file->private_data;
613 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
614 char buf[256];
615 int bufsz = sizeof(buf);
616 int pos = 0;
617
618 mutex_lock(&mvm->mutex);
619
620 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
621 pos += scnprintf(buf + pos, bufsz - pos,
622 "\tPrimary Channel Bitmap 0x%016llx\n",
623 le64_to_cpu(cmd->bt_primary_ci));
624 pos += scnprintf(buf + pos, bufsz - pos,
625 "\tSecondary Channel Bitmap 0x%016llx\n",
626 le64_to_cpu(cmd->bt_secondary_ci));
627
628 mutex_unlock(&mvm->mutex);
629
630 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
631}
632
633static ssize_t
634iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
635 size_t count, loff_t *ppos)
636{
637 u32 bt_tx_prio;
638
639 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
640 return -EINVAL;
641 if (bt_tx_prio > 4)
642 return -EINVAL;
643
644 mvm->bt_tx_prio = bt_tx_prio;
645
646 return count;
647}
648
649static ssize_t
650iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
651 size_t count, loff_t *ppos)
652{
653 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
654 [BT_FORCE_ANT_DIS] = "dis",
655 [BT_FORCE_ANT_AUTO] = "auto",
656 [BT_FORCE_ANT_BT] = "bt",
657 [BT_FORCE_ANT_WIFI] = "wifi",
658 };
659 int ret, bt_force_ant_mode;
660
661 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
662 if (ret < 0)
663 return ret;
664
665 bt_force_ant_mode = ret;
666 ret = 0;
667 mutex_lock(&mvm->mutex);
668 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
669 goto out;
670
671 mvm->bt_force_ant_mode = bt_force_ant_mode;
672 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
673 modes_str[mvm->bt_force_ant_mode]);
674
675 if (iwl_mvm_firmware_running(mvm))
676 ret = iwl_mvm_send_bt_init_conf(mvm);
677 else
678 ret = 0;
679
680out:
681 mutex_unlock(&mvm->mutex);
682 return ret ?: count;
683}
684
685static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
686 size_t count, loff_t *ppos)
687{
688 struct iwl_mvm *mvm = file->private_data;
689 char *buff, *pos, *endpos;
690 static const size_t bufsz = 1024;
691 int ret;
692
693 buff = kmalloc(bufsz, GFP_KERNEL);
694 if (!buff)
695 return -ENOMEM;
696
697 pos = buff;
698 endpos = pos + bufsz;
699
700 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
701 mvm->trans->cfg->fw_name_pre);
702 pos += scnprintf(pos, endpos - pos, "FW: %s\n",
703 mvm->fwrt.fw->human_readable);
704 pos += scnprintf(pos, endpos - pos, "Device: %s\n",
705 mvm->fwrt.trans->name);
706 pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
707 mvm->fwrt.dev->bus->name);
708
709 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
710 kfree(buff);
711
712 return ret;
713}
714
715#define PRINT_STATS_LE32(_struct, _memb) \
716 pos += scnprintf(buf + pos, bufsz - pos, \
717 fmt_table, #_memb, \
718 le32_to_cpu(_struct->_memb))
719
720static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
721 char __user *user_buf, size_t count,
722 loff_t *ppos)
723{
724 struct iwl_mvm *mvm = file->private_data;
725 static const char *fmt_table = "\t%-30s %10u\n";
726 static const char *fmt_header = "%-32s\n";
727 int pos = 0;
728 char *buf;
729 int ret;
730 size_t bufsz;
731
732 if (iwl_mvm_has_new_rx_stats_api(mvm))
733 bufsz = ((sizeof(struct mvm_statistics_rx) /
734 sizeof(__le32)) * 43) + (4 * 33) + 1;
735 else
736
737 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
738 sizeof(__le32)) * 43) + (4 * 33) + 1;
739
740 buf = kzalloc(bufsz, GFP_KERNEL);
741 if (!buf)
742 return -ENOMEM;
743
744 mutex_lock(&mvm->mutex);
745
746 if (iwl_mvm_firmware_running(mvm))
747 iwl_mvm_request_statistics(mvm, false);
748
749 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
750 "Statistics_Rx - OFDM");
751 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
752 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
753
754 PRINT_STATS_LE32(ofdm, ina_cnt);
755 PRINT_STATS_LE32(ofdm, fina_cnt);
756 PRINT_STATS_LE32(ofdm, plcp_err);
757 PRINT_STATS_LE32(ofdm, crc32_err);
758 PRINT_STATS_LE32(ofdm, overrun_err);
759 PRINT_STATS_LE32(ofdm, early_overrun_err);
760 PRINT_STATS_LE32(ofdm, crc32_good);
761 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
762 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
763 PRINT_STATS_LE32(ofdm, sfd_timeout);
764 PRINT_STATS_LE32(ofdm, fina_timeout);
765 PRINT_STATS_LE32(ofdm, unresponded_rts);
766 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
767 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
768 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
769 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
770 PRINT_STATS_LE32(ofdm, dsp_self_kill);
771 PRINT_STATS_LE32(ofdm, mh_format_err);
772 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
773 PRINT_STATS_LE32(ofdm, reserved);
774 } else {
775 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
776
777 PRINT_STATS_LE32(ofdm, unresponded_rts);
778 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
779 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
780 PRINT_STATS_LE32(ofdm, dsp_self_kill);
781 PRINT_STATS_LE32(ofdm, reserved);
782 }
783
784 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
785 "Statistics_Rx - CCK");
786 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
787 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
788
789 PRINT_STATS_LE32(cck, ina_cnt);
790 PRINT_STATS_LE32(cck, fina_cnt);
791 PRINT_STATS_LE32(cck, plcp_err);
792 PRINT_STATS_LE32(cck, crc32_err);
793 PRINT_STATS_LE32(cck, overrun_err);
794 PRINT_STATS_LE32(cck, early_overrun_err);
795 PRINT_STATS_LE32(cck, crc32_good);
796 PRINT_STATS_LE32(cck, false_alarm_cnt);
797 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
798 PRINT_STATS_LE32(cck, sfd_timeout);
799 PRINT_STATS_LE32(cck, fina_timeout);
800 PRINT_STATS_LE32(cck, unresponded_rts);
801 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
802 PRINT_STATS_LE32(cck, sent_ack_cnt);
803 PRINT_STATS_LE32(cck, sent_cts_cnt);
804 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
805 PRINT_STATS_LE32(cck, dsp_self_kill);
806 PRINT_STATS_LE32(cck, mh_format_err);
807 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
808 PRINT_STATS_LE32(cck, reserved);
809 } else {
810 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
811
812 PRINT_STATS_LE32(cck, unresponded_rts);
813 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
814 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
815 PRINT_STATS_LE32(cck, dsp_self_kill);
816 PRINT_STATS_LE32(cck, reserved);
817 }
818
819 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
820 "Statistics_Rx - GENERAL");
821 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
822 struct mvm_statistics_rx_non_phy_v3 *general =
823 &mvm->rx_stats_v3.general;
824
825 PRINT_STATS_LE32(general, bogus_cts);
826 PRINT_STATS_LE32(general, bogus_ack);
827 PRINT_STATS_LE32(general, non_bssid_frames);
828 PRINT_STATS_LE32(general, filtered_frames);
829 PRINT_STATS_LE32(general, non_channel_beacons);
830 PRINT_STATS_LE32(general, channel_beacons);
831 PRINT_STATS_LE32(general, num_missed_bcon);
832 PRINT_STATS_LE32(general, adc_rx_saturation_time);
833 PRINT_STATS_LE32(general, ina_detection_search_time);
834 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
835 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
836 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
837 PRINT_STATS_LE32(general, interference_data_flag);
838 PRINT_STATS_LE32(general, channel_load);
839 PRINT_STATS_LE32(general, dsp_false_alarms);
840 PRINT_STATS_LE32(general, beacon_rssi_a);
841 PRINT_STATS_LE32(general, beacon_rssi_b);
842 PRINT_STATS_LE32(general, beacon_rssi_c);
843 PRINT_STATS_LE32(general, beacon_energy_a);
844 PRINT_STATS_LE32(general, beacon_energy_b);
845 PRINT_STATS_LE32(general, beacon_energy_c);
846 PRINT_STATS_LE32(general, num_bt_kills);
847 PRINT_STATS_LE32(general, mac_id);
848 PRINT_STATS_LE32(general, directed_data_mpdu);
849 } else {
850 struct mvm_statistics_rx_non_phy *general =
851 &mvm->rx_stats.general;
852
853 PRINT_STATS_LE32(general, bogus_cts);
854 PRINT_STATS_LE32(general, bogus_ack);
855 PRINT_STATS_LE32(general, non_channel_beacons);
856 PRINT_STATS_LE32(general, channel_beacons);
857 PRINT_STATS_LE32(general, num_missed_bcon);
858 PRINT_STATS_LE32(general, adc_rx_saturation_time);
859 PRINT_STATS_LE32(general, ina_detection_search_time);
860 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
861 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
862 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
863 PRINT_STATS_LE32(general, interference_data_flag);
864 PRINT_STATS_LE32(general, channel_load);
865 PRINT_STATS_LE32(general, beacon_rssi_a);
866 PRINT_STATS_LE32(general, beacon_rssi_b);
867 PRINT_STATS_LE32(general, beacon_rssi_c);
868 PRINT_STATS_LE32(general, beacon_energy_a);
869 PRINT_STATS_LE32(general, beacon_energy_b);
870 PRINT_STATS_LE32(general, beacon_energy_c);
871 PRINT_STATS_LE32(general, num_bt_kills);
872 PRINT_STATS_LE32(general, mac_id);
873 }
874
875 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
876 "Statistics_Rx - HT");
877 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
878 struct mvm_statistics_rx_ht_phy_v1 *ht =
879 &mvm->rx_stats_v3.ofdm_ht;
880
881 PRINT_STATS_LE32(ht, plcp_err);
882 PRINT_STATS_LE32(ht, overrun_err);
883 PRINT_STATS_LE32(ht, early_overrun_err);
884 PRINT_STATS_LE32(ht, crc32_good);
885 PRINT_STATS_LE32(ht, crc32_err);
886 PRINT_STATS_LE32(ht, mh_format_err);
887 PRINT_STATS_LE32(ht, agg_crc32_good);
888 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
889 PRINT_STATS_LE32(ht, agg_cnt);
890 PRINT_STATS_LE32(ht, unsupport_mcs);
891 } else {
892 struct mvm_statistics_rx_ht_phy *ht =
893 &mvm->rx_stats.ofdm_ht;
894
895 PRINT_STATS_LE32(ht, mh_format_err);
896 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
897 PRINT_STATS_LE32(ht, agg_cnt);
898 PRINT_STATS_LE32(ht, unsupport_mcs);
899 }
900
901 mutex_unlock(&mvm->mutex);
902
903 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
904 kfree(buf);
905
906 return ret;
907}
908#undef PRINT_STAT_LE32
909
910static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
911 char __user *user_buf, size_t count,
912 loff_t *ppos,
913 struct iwl_mvm_frame_stats *stats)
914{
915 char *buff, *pos, *endpos;
916 int idx, i;
917 int ret;
918 static const size_t bufsz = 1024;
919
920 buff = kmalloc(bufsz, GFP_KERNEL);
921 if (!buff)
922 return -ENOMEM;
923
924 spin_lock_bh(&mvm->drv_stats_lock);
925
926 pos = buff;
927 endpos = pos + bufsz;
928
929 pos += scnprintf(pos, endpos - pos,
930 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
931 stats->legacy_frames,
932 stats->ht_frames,
933 stats->vht_frames);
934 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
935 stats->bw_20_frames,
936 stats->bw_40_frames,
937 stats->bw_80_frames);
938 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
939 stats->ngi_frames,
940 stats->sgi_frames);
941 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
942 stats->siso_frames,
943 stats->mimo2_frames);
944 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
945 stats->fail_frames,
946 stats->success_frames);
947 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
948 stats->agg_frames);
949 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
950 stats->ampdu_count);
951 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
952 stats->ampdu_count > 0 ?
953 (stats->agg_frames / stats->ampdu_count) : 0);
954
955 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
956
957 idx = stats->last_frame_idx - 1;
958 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
959 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
960 if (stats->last_rates[idx] == 0)
961 continue;
962 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
963 (int)(ARRAY_SIZE(stats->last_rates) - i));
964 pos += rs_pretty_print_rate(pos, endpos - pos,
965 stats->last_rates[idx]);
966 if (pos < endpos - 1)
967 *pos++ = '\n';
968 }
969 spin_unlock_bh(&mvm->drv_stats_lock);
970
971 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
972 kfree(buff);
973
974 return ret;
975}
976
977static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
978 char __user *user_buf, size_t count,
979 loff_t *ppos)
980{
981 struct iwl_mvm *mvm = file->private_data;
982
983 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
984 &mvm->drv_rx_stats);
985}
986
987static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
988 size_t count, loff_t *ppos)
989{
990 int __maybe_unused ret;
991
992 if (!iwl_mvm_firmware_running(mvm))
993 return -EIO;
994
995 mutex_lock(&mvm->mutex);
996
997
998 if (mvm->fw_restart >= 0)
999 mvm->fw_restart++;
1000
1001
1002 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
1003
1004 mutex_unlock(&mvm->mutex);
1005
1006 return count;
1007}
1008
1009static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1010 size_t count, loff_t *ppos)
1011{
1012 if (!iwl_mvm_firmware_running(mvm))
1013 return -EIO;
1014
1015 iwl_force_nmi(mvm->trans);
1016
1017 return count;
1018}
1019
1020static ssize_t
1021iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1022 char __user *user_buf,
1023 size_t count, loff_t *ppos)
1024{
1025 struct iwl_mvm *mvm = file->private_data;
1026 int pos = 0;
1027 char buf[32];
1028 const size_t bufsz = sizeof(buf);
1029
1030
1031 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1032 if (mvm->scan_rx_ant & ANT_A)
1033 pos += scnprintf(buf + pos, bufsz - pos, "A");
1034 if (mvm->scan_rx_ant & ANT_B)
1035 pos += scnprintf(buf + pos, bufsz - pos, "B");
1036 if (mvm->scan_rx_ant & ANT_C)
1037 pos += scnprintf(buf + pos, bufsz - pos, "C");
1038 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
1039
1040 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1041}
1042
1043static ssize_t
1044iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1045 size_t count, loff_t *ppos)
1046{
1047 u8 scan_rx_ant;
1048
1049 if (!iwl_mvm_firmware_running(mvm))
1050 return -EIO;
1051
1052 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1053 return -EINVAL;
1054 if (scan_rx_ant > ANT_ABC)
1055 return -EINVAL;
1056 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1057 return -EINVAL;
1058
1059 if (mvm->scan_rx_ant != scan_rx_ant) {
1060 mvm->scan_rx_ant = scan_rx_ant;
1061 if (fw_has_capa(&mvm->fw->ucode_capa,
1062 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1063 iwl_mvm_config_scan(mvm);
1064 }
1065
1066 return count;
1067}
1068
1069static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1070 char *buf, size_t count,
1071 loff_t *ppos)
1072{
1073 struct iwl_rss_config_cmd cmd = {
1074 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1075 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1076 IWL_RSS_HASH_TYPE_IPV4_UDP |
1077 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1078 IWL_RSS_HASH_TYPE_IPV6_TCP |
1079 IWL_RSS_HASH_TYPE_IPV6_UDP |
1080 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1081 };
1082 int ret, i, num_repeats, nbytes = count / 2;
1083
1084 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1085 if (ret)
1086 return ret;
1087
1088
1089
1090
1091
1092
1093
1094
1095 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1096 for (i = 1; i < num_repeats; i++)
1097 memcpy(&cmd.indirection_table[i * nbytes],
1098 cmd.indirection_table, nbytes);
1099
1100 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1101 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1102
1103 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1104
1105 mutex_lock(&mvm->mutex);
1106 if (iwl_mvm_firmware_running(mvm))
1107 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1108 sizeof(cmd), &cmd);
1109 else
1110 ret = 0;
1111 mutex_unlock(&mvm->mutex);
1112
1113 return ret ?: count;
1114}
1115
1116static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1117 char *buf, size_t count,
1118 loff_t *ppos)
1119{
1120 struct iwl_rx_cmd_buffer rxb = {
1121 ._rx_page_order = 0,
1122 .truesize = 0,
1123 ._offset = 0,
1124 };
1125 struct iwl_rx_packet *pkt;
1126 struct iwl_rx_mpdu_desc *desc;
1127 int bin_len = count / 2;
1128 int ret = -EINVAL;
1129 size_t mpdu_cmd_hdr_size = (mvm->trans->trans_cfg->device_family >=
1130 IWL_DEVICE_FAMILY_AX210) ?
1131 sizeof(struct iwl_rx_mpdu_desc) :
1132 IWL_RX_DESC_SIZE_V1;
1133
1134 if (!iwl_mvm_firmware_running(mvm))
1135 return -EIO;
1136
1137
1138 if (!mvm->trans->trans_cfg->mq_rx_supported)
1139 return -ENOTSUPP;
1140
1141 rxb._page = alloc_pages(GFP_ATOMIC, 0);
1142 if (!rxb._page)
1143 return -ENOMEM;
1144 pkt = rxb_addr(&rxb);
1145
1146 ret = hex2bin(page_address(rxb._page), buf, bin_len);
1147 if (ret)
1148 goto out;
1149
1150
1151 if (bin_len < sizeof(*pkt) + mpdu_cmd_hdr_size)
1152 goto out;
1153
1154
1155 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) !=
1156 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))
1157 goto out;
1158
1159
1160 desc = (void *)pkt->data;
1161 if (le16_to_cpu(desc->mpdu_len) !=
1162 (bin_len - mpdu_cmd_hdr_size - sizeof(*pkt)))
1163 goto out;
1164
1165 local_bh_disable();
1166 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0);
1167 local_bh_enable();
1168 ret = 0;
1169
1170out:
1171 iwl_free_rxb(&rxb);
1172
1173 return ret ?: count;
1174}
1175
1176static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1177{
1178 struct ieee80211_vif *vif;
1179 struct iwl_mvm_vif *mvmvif;
1180 struct sk_buff *beacon;
1181 struct ieee80211_tx_info *info;
1182 struct iwl_mac_beacon_cmd beacon_cmd = {};
1183 u8 rate;
1184 u16 flags;
1185 int i;
1186
1187 len /= 2;
1188
1189
1190 if (len >= U8_MAX)
1191 return -EINVAL;
1192
1193 if (!iwl_mvm_firmware_running(mvm))
1194 return -EIO;
1195
1196 if (!iwl_mvm_has_new_tx_api(mvm) &&
1197 !fw_has_api(&mvm->fw->ucode_capa,
1198 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1199 return -EINVAL;
1200
1201 rcu_read_lock();
1202
1203 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1204 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, true);
1205 if (!vif)
1206 continue;
1207
1208 if (vif->type == NL80211_IFTYPE_AP)
1209 break;
1210 }
1211
1212 if (i == NUM_MAC_INDEX_DRIVER || !vif)
1213 goto out_err;
1214
1215 mvm->hw->extra_beacon_tailroom = len;
1216
1217 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL);
1218 if (!beacon)
1219 goto out_err;
1220
1221 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1222 dev_kfree_skb(beacon);
1223 goto out_err;
1224 }
1225
1226 mvm->beacon_inject_active = true;
1227
1228 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1229 info = IEEE80211_SKB_CB(beacon);
1230 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif);
1231 flags = iwl_mvm_mac80211_idx_to_hwrate(rate);
1232
1233 if (rate == IWL_FIRST_CCK_RATE)
1234 flags |= IWL_MAC_BEACON_CCK;
1235
1236 beacon_cmd.flags = cpu_to_le16(flags);
1237 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1238 beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
1239
1240 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1241 &beacon_cmd.tim_size,
1242 beacon->data, beacon->len);
1243
1244 mutex_lock(&mvm->mutex);
1245 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1246 sizeof(beacon_cmd));
1247 mutex_unlock(&mvm->mutex);
1248
1249 dev_kfree_skb(beacon);
1250
1251 rcu_read_unlock();
1252 return 0;
1253
1254out_err:
1255 rcu_read_unlock();
1256 return -EINVAL;
1257}
1258
1259static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1260 char *buf, size_t count,
1261 loff_t *ppos)
1262{
1263 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1264
1265 mvm->hw->extra_beacon_tailroom = 0;
1266 return ret ?: count;
1267}
1268
1269static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1270 char *buf,
1271 size_t count,
1272 loff_t *ppos)
1273{
1274 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1275
1276 mvm->hw->extra_beacon_tailroom = 0;
1277 mvm->beacon_inject_active = false;
1278 return ret ?: count;
1279}
1280
1281static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1282 char __user *user_buf,
1283 size_t count, loff_t *ppos)
1284{
1285 struct iwl_mvm *mvm = file->private_data;
1286 int conf;
1287 char buf[8];
1288 const size_t bufsz = sizeof(buf);
1289 int pos = 0;
1290
1291 mutex_lock(&mvm->mutex);
1292 conf = mvm->fwrt.dump.conf;
1293 mutex_unlock(&mvm->mutex);
1294
1295 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1296
1297 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1298}
1299
1300static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1301 char *buf, size_t count,
1302 loff_t *ppos)
1303{
1304 unsigned int conf_id;
1305 int ret;
1306
1307 if (!iwl_mvm_firmware_running(mvm))
1308 return -EIO;
1309
1310 ret = kstrtouint(buf, 0, &conf_id);
1311 if (ret)
1312 return ret;
1313
1314 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1315 return -EINVAL;
1316
1317 mutex_lock(&mvm->mutex);
1318 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1319 mutex_unlock(&mvm->mutex);
1320
1321 return ret ?: count;
1322}
1323
1324static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1325 char *buf, size_t count,
1326 loff_t *ppos)
1327{
1328 if (count == 0)
1329 return 0;
1330
1331 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1332 NULL);
1333
1334 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1335 (count - 1), NULL);
1336
1337 return count;
1338}
1339
1340#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1341#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1342static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1343 char __user *user_buf,
1344 size_t count, loff_t *ppos)
1345{
1346 struct iwl_mvm *mvm = file->private_data;
1347 struct iwl_bcast_filter_cmd cmd;
1348 const struct iwl_fw_bcast_filter *filter;
1349 char *buf;
1350 int bufsz = 1024;
1351 int i, j, pos = 0;
1352 ssize_t ret;
1353
1354 buf = kzalloc(bufsz, GFP_KERNEL);
1355 if (!buf)
1356 return -ENOMEM;
1357
1358 mutex_lock(&mvm->mutex);
1359 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1360 ADD_TEXT("None\n");
1361 mutex_unlock(&mvm->mutex);
1362 goto out;
1363 }
1364 mutex_unlock(&mvm->mutex);
1365
1366 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1367 filter = &cmd.filters[i];
1368
1369 ADD_TEXT("Filter [%d]:\n", i);
1370 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1371 ADD_TEXT("\tFrame Type: %s\n",
1372 filter->frame_type ? "IPv4" : "Generic");
1373
1374 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1375 const struct iwl_fw_bcast_filter_attr *attr;
1376
1377 attr = &filter->attrs[j];
1378 if (!attr->mask)
1379 break;
1380
1381 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1382 j, attr->offset,
1383 attr->offset_type ? "IP End" :
1384 "Payload Start",
1385 be32_to_cpu(attr->mask),
1386 be32_to_cpu(attr->val),
1387 le16_to_cpu(attr->reserved1));
1388 }
1389 }
1390out:
1391 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1392 kfree(buf);
1393 return ret;
1394}
1395
1396static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1397 size_t count, loff_t *ppos)
1398{
1399 int pos, next_pos;
1400 struct iwl_fw_bcast_filter filter = {};
1401 struct iwl_bcast_filter_cmd cmd;
1402 u32 filter_id, attr_id, mask, value;
1403 int err = 0;
1404
1405 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1406 &filter.frame_type, &pos) != 3)
1407 return -EINVAL;
1408
1409 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1410 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1411 return -EINVAL;
1412
1413 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1414 attr_id++) {
1415 struct iwl_fw_bcast_filter_attr *attr =
1416 &filter.attrs[attr_id];
1417
1418 if (pos >= count)
1419 break;
1420
1421 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1422 &attr->offset, &attr->offset_type,
1423 &mask, &value, &next_pos) != 4)
1424 return -EINVAL;
1425
1426 attr->mask = cpu_to_be32(mask);
1427 attr->val = cpu_to_be32(value);
1428 if (mask)
1429 filter.num_attrs++;
1430
1431 pos += next_pos;
1432 }
1433
1434 mutex_lock(&mvm->mutex);
1435 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1436 &filter, sizeof(filter));
1437
1438
1439 if (iwl_mvm_firmware_running(mvm) &&
1440 mvm->dbgfs_bcast_filtering.override &&
1441 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1442 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1443 sizeof(cmd), &cmd);
1444 mutex_unlock(&mvm->mutex);
1445
1446 return err ?: count;
1447}
1448
1449static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1450 char __user *user_buf,
1451 size_t count, loff_t *ppos)
1452{
1453 struct iwl_mvm *mvm = file->private_data;
1454 struct iwl_bcast_filter_cmd cmd;
1455 char *buf;
1456 int bufsz = 1024;
1457 int i, pos = 0;
1458 ssize_t ret;
1459
1460 buf = kzalloc(bufsz, GFP_KERNEL);
1461 if (!buf)
1462 return -ENOMEM;
1463
1464 mutex_lock(&mvm->mutex);
1465 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1466 ADD_TEXT("None\n");
1467 mutex_unlock(&mvm->mutex);
1468 goto out;
1469 }
1470 mutex_unlock(&mvm->mutex);
1471
1472 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1473 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1474
1475 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1476 i, mac->default_discard, mac->attached_filters);
1477 }
1478out:
1479 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1480 kfree(buf);
1481 return ret;
1482}
1483
1484static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1485 char *buf, size_t count,
1486 loff_t *ppos)
1487{
1488 struct iwl_bcast_filter_cmd cmd;
1489 struct iwl_fw_bcast_mac mac = {};
1490 u32 mac_id, attached_filters;
1491 int err = 0;
1492
1493 if (!mvm->bcast_filters)
1494 return -ENOENT;
1495
1496 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1497 &attached_filters) != 3)
1498 return -EINVAL;
1499
1500 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1501 mac.default_discard > 1 ||
1502 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1503 return -EINVAL;
1504
1505 mac.attached_filters = cpu_to_le16(attached_filters);
1506
1507 mutex_lock(&mvm->mutex);
1508 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1509 &mac, sizeof(mac));
1510
1511
1512 if (iwl_mvm_firmware_running(mvm) &&
1513 mvm->dbgfs_bcast_filtering.override &&
1514 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1515 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1516 sizeof(cmd), &cmd);
1517 mutex_unlock(&mvm->mutex);
1518
1519 return err ?: count;
1520}
1521#endif
1522
1523#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1524 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1525#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1526 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1527#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1528 debugfs_create_file(alias, mode, parent, mvm, \
1529 &iwl_dbgfs_##name##_ops); \
1530 } while (0)
1531#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1532 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1533
1534#define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
1535 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1536#define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
1537 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1538
1539#define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \
1540 debugfs_create_file(alias, mode, parent, sta, \
1541 &iwl_dbgfs_##name##_ops); \
1542 } while (0)
1543#define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
1544 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
1545
1546static ssize_t
1547iwl_dbgfs_prph_reg_read(struct file *file,
1548 char __user *user_buf,
1549 size_t count, loff_t *ppos)
1550{
1551 struct iwl_mvm *mvm = file->private_data;
1552 int pos = 0;
1553 char buf[32];
1554 const size_t bufsz = sizeof(buf);
1555
1556 if (!mvm->dbgfs_prph_reg_addr)
1557 return -EINVAL;
1558
1559 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1560 mvm->dbgfs_prph_reg_addr,
1561 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1562
1563 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1564}
1565
1566static ssize_t
1567iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1568 size_t count, loff_t *ppos)
1569{
1570 u8 args;
1571 u32 value;
1572
1573 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1574
1575 if (args == 1)
1576 goto out;
1577
1578
1579 if (args != 2)
1580 return -EINVAL;
1581
1582 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1583
1584out:
1585 return count;
1586}
1587
1588static ssize_t
1589iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1590 size_t count, loff_t *ppos)
1591{
1592 int ret;
1593
1594 if (!iwl_mvm_firmware_running(mvm))
1595 return -EIO;
1596
1597 mutex_lock(&mvm->mutex);
1598 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1599 mutex_unlock(&mvm->mutex);
1600
1601 return ret ?: count;
1602}
1603
1604struct iwl_mvm_sniffer_apply {
1605 struct iwl_mvm *mvm;
1606 u8 *bssid;
1607 u16 aid;
1608};
1609
1610static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1611 struct iwl_rx_packet *pkt, void *data)
1612{
1613 struct iwl_mvm_sniffer_apply *apply = data;
1614
1615 apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1616 memcpy(apply->mvm->cur_bssid, apply->bssid,
1617 sizeof(apply->mvm->cur_bssid));
1618
1619 return true;
1620}
1621
1622static ssize_t
1623iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1624 size_t count, loff_t *ppos)
1625{
1626 struct iwl_notification_wait wait;
1627 struct iwl_he_monitor_cmd he_mon_cmd = {};
1628 struct iwl_mvm_sniffer_apply apply = {
1629 .mvm = mvm,
1630 };
1631 u16 wait_cmds[] = {
1632 iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD, DATA_PATH_GROUP, 0),
1633 };
1634 u32 aid;
1635 int ret;
1636
1637 if (!iwl_mvm_firmware_running(mvm))
1638 return -EIO;
1639
1640 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1641 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1642 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1643 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1644 if (ret != 7)
1645 return -EINVAL;
1646
1647 he_mon_cmd.aid = cpu_to_le16(aid);
1648
1649 apply.aid = aid;
1650 apply.bssid = (void *)he_mon_cmd.bssid;
1651
1652 mutex_lock(&mvm->mutex);
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663 iwl_init_notification_wait(&mvm->notif_wait, &wait,
1664 wait_cmds, ARRAY_SIZE(wait_cmds),
1665 iwl_mvm_sniffer_apply, &apply);
1666
1667 ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD,
1668 DATA_PATH_GROUP, 0), 0,
1669 sizeof(he_mon_cmd), &he_mon_cmd);
1670
1671
1672 iwl_remove_notification(&mvm->notif_wait, &wait);
1673
1674 mutex_unlock(&mvm->mutex);
1675
1676 return ret ?: count;
1677}
1678
1679static ssize_t
1680iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
1681 size_t count, loff_t *ppos)
1682{
1683 struct iwl_mvm *mvm = file->private_data;
1684 u8 buf[32];
1685 int len;
1686
1687 len = scnprintf(buf, sizeof(buf),
1688 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
1689 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
1690 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
1691 mvm->cur_bssid[4], mvm->cur_bssid[5]);
1692
1693 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1694}
1695
1696static ssize_t
1697iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1698 size_t count, loff_t *ppos)
1699{
1700 struct iwl_mvm *mvm = file->private_data;
1701 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1702 unsigned int pos = 0;
1703 size_t bufsz = sizeof(buf);
1704 int i;
1705
1706 mutex_lock(&mvm->mutex);
1707
1708 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1709 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1710 mvm->uapsd_noagg_bssids[i].addr);
1711
1712 mutex_unlock(&mvm->mutex);
1713
1714 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1715}
1716
1717static ssize_t
1718iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
1719 char *buf, size_t count, loff_t *ppos)
1720{
1721 int ret;
1722 struct iwl_ltr_config_cmd ltr_config = {0};
1723
1724 if (!iwl_mvm_firmware_running(mvm))
1725 return -EIO;
1726
1727 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
1728 <r_config.flags,
1729 <r_config.static_long,
1730 <r_config.static_short,
1731 <r_config.ltr_cfg_values[0],
1732 <r_config.ltr_cfg_values[1],
1733 <r_config.ltr_cfg_values[2],
1734 <r_config.ltr_cfg_values[3]) != 7) {
1735 return -EINVAL;
1736 }
1737
1738 mutex_lock(&mvm->mutex);
1739 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
1740 <r_config);
1741 mutex_unlock(&mvm->mutex);
1742
1743 if (ret)
1744 IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
1745
1746 return ret ?: count;
1747}
1748
1749MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1750
1751
1752MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1753MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1754MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1755MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1756MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1757MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1758MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1759MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1760MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1761MVM_DEBUGFS_READ_FILE_OPS(stations);
1762MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1763MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1764MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1765MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1766MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1767MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1768MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1769MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1770MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1771MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1772MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1773MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1774MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1775MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1776MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1777 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1778MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1779MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1780MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1781
1782MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1783
1784#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1785MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1786MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1787#endif
1788
1789#ifdef CONFIG_ACPI
1790MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1791#endif
1792
1793MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
1794
1795MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
1796
1797MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
1798
1799static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1800 size_t count, loff_t *ppos)
1801{
1802 struct iwl_mvm *mvm = file->private_data;
1803 struct iwl_dbg_mem_access_cmd cmd = {};
1804 struct iwl_dbg_mem_access_rsp *rsp;
1805 struct iwl_host_cmd hcmd = {
1806 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1807 .data = { &cmd, },
1808 .len = { sizeof(cmd) },
1809 };
1810 size_t delta;
1811 ssize_t ret, len;
1812
1813 if (!iwl_mvm_firmware_running(mvm))
1814 return -EIO;
1815
1816 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1817 DEBUG_GROUP, 0);
1818 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1819
1820
1821 delta = *ppos & 0x3;
1822 cmd.addr = cpu_to_le32(*ppos - delta);
1823 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1824 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1825
1826 mutex_lock(&mvm->mutex);
1827 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1828 mutex_unlock(&mvm->mutex);
1829
1830 if (ret < 0)
1831 return ret;
1832
1833 rsp = (void *)hcmd.resp_pkt->data;
1834 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1835 ret = -ENXIO;
1836 goto out;
1837 }
1838
1839 len = min((size_t)le32_to_cpu(rsp->len) << 2,
1840 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1841 len = min(len - delta, count);
1842 if (len < 0) {
1843 ret = -EFAULT;
1844 goto out;
1845 }
1846
1847 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len);
1848 *ppos += ret;
1849
1850out:
1851 iwl_free_resp(&hcmd);
1852 return ret;
1853}
1854
1855static ssize_t iwl_dbgfs_mem_write(struct file *file,
1856 const char __user *user_buf, size_t count,
1857 loff_t *ppos)
1858{
1859 struct iwl_mvm *mvm = file->private_data;
1860 struct iwl_dbg_mem_access_cmd *cmd;
1861 struct iwl_dbg_mem_access_rsp *rsp;
1862 struct iwl_host_cmd hcmd = {};
1863 size_t cmd_size;
1864 size_t data_size;
1865 u32 op, len;
1866 ssize_t ret;
1867
1868 if (!iwl_mvm_firmware_running(mvm))
1869 return -EIO;
1870
1871 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1872 DEBUG_GROUP, 0);
1873
1874 if (*ppos & 0x3 || count < 4) {
1875 op = DEBUG_MEM_OP_WRITE_BYTES;
1876 len = min(count, (size_t)(4 - (*ppos & 0x3)));
1877 data_size = len;
1878 } else {
1879 op = DEBUG_MEM_OP_WRITE;
1880 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1881 data_size = len << 2;
1882 }
1883
1884 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1885 cmd = kzalloc(cmd_size, GFP_KERNEL);
1886 if (!cmd)
1887 return -ENOMEM;
1888
1889 cmd->op = cpu_to_le32(op);
1890 cmd->len = cpu_to_le32(len);
1891 cmd->addr = cpu_to_le32(*ppos);
1892 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1893 kfree(cmd);
1894 return -EFAULT;
1895 }
1896
1897 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1898 hcmd.data[0] = (void *)cmd;
1899 hcmd.len[0] = cmd_size;
1900
1901 mutex_lock(&mvm->mutex);
1902 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1903 mutex_unlock(&mvm->mutex);
1904
1905 kfree(cmd);
1906
1907 if (ret < 0)
1908 return ret;
1909
1910 rsp = (void *)hcmd.resp_pkt->data;
1911 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1912 ret = -ENXIO;
1913 goto out;
1914 }
1915
1916 ret = data_size;
1917 *ppos += ret;
1918
1919out:
1920 iwl_free_resp(&hcmd);
1921 return ret;
1922}
1923
1924static const struct file_operations iwl_dbgfs_mem_ops = {
1925 .read = iwl_dbgfs_mem_read,
1926 .write = iwl_dbgfs_mem_write,
1927 .open = simple_open,
1928 .llseek = default_llseek,
1929};
1930
1931void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
1932 struct ieee80211_vif *vif,
1933 struct ieee80211_sta *sta,
1934 struct dentry *dir)
1935{
1936 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1937
1938 if (iwl_mvm_has_tlc_offload(mvm)) {
1939 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
1940 }
1941 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600);
1942}
1943
1944void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1945{
1946 struct dentry *bcast_dir __maybe_unused;
1947 char buf[100];
1948
1949 spin_lock_init(&mvm->drv_stats_lock);
1950
1951 mvm->debugfs_dir = dbgfs_dir;
1952
1953 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
1954 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
1955 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
1956 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
1957 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, 0400);
1958 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, 0400);
1959 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, 0200);
1960 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, 0200);
1961 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, 0400);
1962 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, 0400);
1963 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, 0400);
1964 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
1965 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
1966 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
1967 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
1968 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
1969 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
1970 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
1971 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
1972 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
1973 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
1974 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
1975 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
1976 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
1977 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
1978 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
1979 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
1980 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
1981#ifdef CONFIG_ACPI
1982 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400);
1983#endif
1984 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
1985
1986 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
1987 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
1988
1989 debugfs_create_bool("enable_scan_iteration_notif", 0600,
1990 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
1991 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
1992 &mvm->drop_bcn_ap_mode);
1993
1994 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
1995
1996#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1997 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1998 bcast_dir = debugfs_create_dir("bcast_filtering",
1999 mvm->debugfs_dir);
2000
2001 debugfs_create_bool("override", 0600, bcast_dir,
2002 &mvm->dbgfs_bcast_filtering.override);
2003
2004 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
2005 bcast_dir, 0600);
2006 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
2007 bcast_dir, 0600);
2008 }
2009#endif
2010
2011#ifdef CONFIG_PM_SLEEP
2012 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
2013 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
2014 &mvm->d3_wake_sysassert);
2015 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
2016 &mvm->last_netdetect_scans);
2017#endif
2018
2019 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
2020 &mvm->ps_disabled);
2021 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
2022 &mvm->nvm_hw_blob);
2023 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
2024 &mvm->nvm_sw_blob);
2025 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
2026 &mvm->nvm_calib_blob);
2027 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
2028 &mvm->nvm_prod_blob);
2029 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
2030 &mvm->nvm_phy_sku_blob);
2031 debugfs_create_blob("nvm_reg", S_IRUSR,
2032 mvm->debugfs_dir, &mvm->nvm_reg_blob);
2033
2034 debugfs_create_file("mem", 0600, dbgfs_dir, mvm, &iwl_dbgfs_mem_ops);
2035
2036
2037
2038
2039
2040 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
2041 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf);
2042}
2043
