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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7#include <linux/vmalloc.h>
8#include <linux/err.h>
9#include <linux/ieee80211.h>
10#include <linux/netdevice.h>
11
12#include "mvm.h"
13#include "sta.h"
14#include "iwl-io.h"
15#include "debugfs.h"
16#include "iwl-modparams.h"
17#include "fw/error-dump.h"
18
19static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
20 char __user *user_buf,
21 size_t count, loff_t *ppos)
22{
23 struct iwl_mvm *mvm = file->private_data;
24 char buf[16];
25 int pos, budget;
26
27 if (!iwl_mvm_is_ctdp_supported(mvm))
28 return -EOPNOTSUPP;
29
30 if (!iwl_mvm_firmware_running(mvm) ||
31 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
32 return -EIO;
33
34 mutex_lock(&mvm->mutex);
35 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
36 mutex_unlock(&mvm->mutex);
37
38 if (budget < 0)
39 return budget;
40
41 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
42
43 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
44}
45
46static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
47 size_t count, loff_t *ppos)
48{
49 int ret;
50
51 if (!iwl_mvm_is_ctdp_supported(mvm))
52 return -EOPNOTSUPP;
53
54 if (!iwl_mvm_firmware_running(mvm) ||
55 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
56 return -EIO;
57
58 mutex_lock(&mvm->mutex);
59 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
60 mutex_unlock(&mvm->mutex);
61
62 return ret ?: count;
63}
64
65static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
66 size_t count, loff_t *ppos)
67{
68 if (!iwl_mvm_firmware_running(mvm) ||
69 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
70 return -EIO;
71
72 iwl_mvm_enter_ctkill(mvm);
73
74 return count;
75}
76
77static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
78 size_t count, loff_t *ppos)
79{
80 int ret;
81 u32 flush_arg;
82
83 if (!iwl_mvm_firmware_running(mvm) ||
84 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
85 return -EIO;
86
87 if (kstrtou32(buf, 0, &flush_arg))
88 return -EINVAL;
89
90 if (iwl_mvm_has_new_tx_api(mvm)) {
91 IWL_DEBUG_TX_QUEUES(mvm,
92 "FLUSHING all tids queues on sta_id = %d\n",
93 flush_arg);
94 mutex_lock(&mvm->mutex);
95 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF)
96 ? : count;
97 mutex_unlock(&mvm->mutex);
98 return ret;
99 }
100
101 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
102 flush_arg);
103
104 mutex_lock(&mvm->mutex);
105 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count;
106 mutex_unlock(&mvm->mutex);
107
108 return ret;
109}
110
111static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
112 size_t count, loff_t *ppos)
113{
114 struct iwl_mvm_sta *mvmsta;
115 int sta_id, drain, ret;
116
117 if (!iwl_mvm_firmware_running(mvm) ||
118 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
119 return -EIO;
120
121 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
122 return -EINVAL;
123 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations)
124 return -EINVAL;
125 if (drain < 0 || drain > 1)
126 return -EINVAL;
127
128 mutex_lock(&mvm->mutex);
129
130 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
131
132 if (!mvmsta)
133 ret = -ENOENT;
134 else
135 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
136
137 mutex_unlock(&mvm->mutex);
138
139 return ret;
140}
141
142static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
143 size_t count, loff_t *ppos)
144{
145 struct iwl_mvm *mvm = file->private_data;
146 const struct fw_img *img;
147 unsigned int ofs, len;
148 size_t ret;
149 u8 *ptr;
150
151 if (!iwl_mvm_firmware_running(mvm))
152 return -EINVAL;
153
154 /* default is to dump the entire data segment */
155 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
156 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
157 len = img->sec[IWL_UCODE_SECTION_DATA].len;
158
159 if (mvm->dbgfs_sram_len) {
160 ofs = mvm->dbgfs_sram_offset;
161 len = mvm->dbgfs_sram_len;
162 }
163
164 ptr = kzalloc(len, GFP_KERNEL);
165 if (!ptr)
166 return -ENOMEM;
167
168 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
169
170 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
171
172 kfree(ptr);
173
174 return ret;
175}
176
177static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
178 size_t count, loff_t *ppos)
179{
180 const struct fw_img *img;
181 u32 offset, len;
182 u32 img_offset, img_len;
183
184 if (!iwl_mvm_firmware_running(mvm))
185 return -EINVAL;
186
187 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
188 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
189 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
190
191 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
192 if ((offset & 0x3) || (len & 0x3))
193 return -EINVAL;
194
195 if (offset + len > img_offset + img_len)
196 return -EINVAL;
197
198 mvm->dbgfs_sram_offset = offset;
199 mvm->dbgfs_sram_len = len;
200 } else {
201 mvm->dbgfs_sram_offset = 0;
202 mvm->dbgfs_sram_len = 0;
203 }
204
205 return count;
206}
207
208static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
209 char __user *user_buf,
210 size_t count, loff_t *ppos)
211{
212 struct iwl_mvm *mvm = file->private_data;
213 char buf[16];
214 int pos;
215
216 if (!mvm->temperature_test)
217 pos = scnprintf(buf , sizeof(buf), "disabled\n");
218 else
219 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
220
221 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
222}
223
224/*
225 * Set NIC Temperature
226 * Cause the driver to ignore the actual NIC temperature reported by the FW
227 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
228 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
229 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
230 */
231static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
232 char *buf, size_t count,
233 loff_t *ppos)
234{
235 int temperature;
236
237 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
238 return -EIO;
239
240 if (kstrtoint(buf, 10, &temperature))
241 return -EINVAL;
242 /* not a legal temperature */
243 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
244 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
245 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
246 return -EINVAL;
247
248 mutex_lock(&mvm->mutex);
249 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
250 if (!mvm->temperature_test)
251 goto out;
252
253 mvm->temperature_test = false;
254 /* Since we can't read the temp while awake, just set
255 * it to zero until we get the next RX stats from the
256 * firmware.
257 */
258 mvm->temperature = 0;
259 } else {
260 mvm->temperature_test = true;
261 mvm->temperature = temperature;
262 }
263 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
264 mvm->temperature_test ? "En" : "Dis" ,
265 mvm->temperature);
266 /* handle the temperature change */
267 iwl_mvm_tt_handler(mvm);
268
269out:
270 mutex_unlock(&mvm->mutex);
271
272 return count;
273}
274
275static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
276 char __user *user_buf,
277 size_t count, loff_t *ppos)
278{
279 struct iwl_mvm *mvm = file->private_data;
280 char buf[16];
281 int pos, ret;
282 s32 temp;
283
284 if (!iwl_mvm_firmware_running(mvm))
285 return -EIO;
286
287 mutex_lock(&mvm->mutex);
288 ret = iwl_mvm_get_temp(mvm, &temp);
289 mutex_unlock(&mvm->mutex);
290
291 if (ret)
292 return -EIO;
293
294 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
295
296 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
297}
298
299#ifdef CONFIG_ACPI
300static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
301 char __user *user_buf,
302 size_t count, loff_t *ppos)
303{
304 struct iwl_mvm *mvm = file->private_data;
305 char buf[256];
306 int pos = 0;
307 int bufsz = sizeof(buf);
308 int tbl_idx;
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 pos += scnprintf(buf + pos, bufsz - pos,
325 "Use geographic profile %d\n", tbl_idx);
326 pos += scnprintf(buf + pos, bufsz - pos,
327 "2.4GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n",
328 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0],
329 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1],
330 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max);
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 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0],
334 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1],
335 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max);
336 }
337 mutex_unlock(&mvm->mutex);
338
339 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
340}
341#endif
342
343static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
344 size_t count, loff_t *ppos)
345{
346 struct iwl_mvm *mvm = file->private_data;
347 struct ieee80211_sta *sta;
348 char buf[400];
349 int i, pos = 0, bufsz = sizeof(buf);
350
351 mutex_lock(&mvm->mutex);
352
353 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
354 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
355 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
356 lockdep_is_held(&mvm->mutex));
357 if (!sta)
358 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
359 else if (IS_ERR(sta))
360 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
361 PTR_ERR(sta));
362 else
363 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
364 sta->addr);
365 }
366
367 mutex_unlock(&mvm->mutex);
368
369 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
370}
371
372static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
373 size_t count, loff_t *ppos)
374{
375 struct ieee80211_sta *sta = file->private_data;
376 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
377 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
378 struct iwl_mvm *mvm = lq_sta->pers.drv;
379 static const size_t bufsz = 2048;
380 char *buff;
381 int desc = 0;
382 ssize_t ret;
383
384 buff = kmalloc(bufsz, GFP_KERNEL);
385 if (!buff)
386 return -ENOMEM;
387
388 mutex_lock(&mvm->mutex);
389
390 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
391 lq_sta->pers.sta_id);
392 desc += scnprintf(buff + desc, bufsz - desc,
393 "fixed rate 0x%X\n",
394 lq_sta->pers.dbg_fixed_rate);
395 desc += scnprintf(buff + desc, bufsz - desc,
396 "A-MPDU size limit %d\n",
397 lq_sta->pers.dbg_agg_frame_count_lim);
398 desc += scnprintf(buff + desc, bufsz - desc,
399 "valid_tx_ant %s%s\n",
400 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
401 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "");
402 desc += scnprintf(buff + desc, bufsz - desc,
403 "last tx rate=0x%X ",
404 lq_sta->last_rate_n_flags);
405
406 desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
407 lq_sta->last_rate_n_flags);
408 if (desc < bufsz - 1)
409 buff[desc++] = '\n';
410 mutex_unlock(&mvm->mutex);
411
412 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
413 kfree(buff);
414 return ret;
415}
416
417static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
418 char *buf, size_t count,
419 loff_t *ppos)
420{
421 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
422 int i;
423 u16 amsdu_len;
424
425 if (kstrtou16(buf, 0, &amsdu_len))
426 return -EINVAL;
427
428 /* only change from debug set <-> debug unset */
429 if (amsdu_len && mvmsta->orig_amsdu_len)
430 return -EBUSY;
431
432 if (amsdu_len) {
433 mvmsta->orig_amsdu_len = sta->cur->max_amsdu_len;
434 sta->deflink.agg.max_amsdu_len = amsdu_len;
435 sta->deflink.agg.max_amsdu_len = amsdu_len;
436 for (i = 0; i < ARRAY_SIZE(sta->deflink.agg.max_tid_amsdu_len); i++)
437 sta->deflink.agg.max_tid_amsdu_len[i] = amsdu_len;
438 } else {
439 sta->deflink.agg.max_amsdu_len = mvmsta->orig_amsdu_len;
440 mvmsta->orig_amsdu_len = 0;
441 }
442
443 return count;
444}
445
446static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file,
447 char __user *user_buf,
448 size_t count, loff_t *ppos)
449{
450 struct ieee80211_sta *sta = file->private_data;
451 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
452
453 char buf[32];
454 int pos;
455
456 pos = scnprintf(buf, sizeof(buf), "current %d ", sta->cur->max_amsdu_len);
457 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
458 mvmsta->orig_amsdu_len);
459
460 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
461}
462
463static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
464 char __user *user_buf,
465 size_t count, loff_t *ppos)
466{
467 struct iwl_mvm *mvm = file->private_data;
468 char buf[64];
469 int bufsz = sizeof(buf);
470 int pos = 0;
471
472 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
473 mvm->disable_power_off);
474 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
475 mvm->disable_power_off_d3);
476
477 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
478}
479
480static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
481 size_t count, loff_t *ppos)
482{
483 int ret, val;
484
485 if (!iwl_mvm_firmware_running(mvm))
486 return -EIO;
487
488 if (!strncmp("disable_power_off_d0=", buf, 21)) {
489 if (sscanf(buf + 21, "%d", &val) != 1)
490 return -EINVAL;
491 mvm->disable_power_off = val;
492 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
493 if (sscanf(buf + 21, "%d", &val) != 1)
494 return -EINVAL;
495 mvm->disable_power_off_d3 = val;
496 } else {
497 return -EINVAL;
498 }
499
500 mutex_lock(&mvm->mutex);
501 ret = iwl_mvm_power_update_device(mvm);
502 mutex_unlock(&mvm->mutex);
503
504 return ret ?: count;
505}
506
507static
508int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
509 int pos, int bufsz)
510{
511 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
512
513 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
514 BT_MBOX_PRINT(0, LE_PROF1, false);
515 BT_MBOX_PRINT(0, LE_PROF2, false);
516 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
517 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
518 BT_MBOX_PRINT(0, INBAND_S, false);
519 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
520 BT_MBOX_PRINT(0, LE_SCAN, false);
521 BT_MBOX_PRINT(0, LE_ADV, false);
522 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
523 BT_MBOX_PRINT(0, OPEN_CON_1, true);
524
525 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
526
527 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
528 BT_MBOX_PRINT(1, IP_SR, false);
529 BT_MBOX_PRINT(1, LE_MSTR, false);
530 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
531 BT_MBOX_PRINT(1, MSG_TYPE, false);
532 BT_MBOX_PRINT(1, SSN, true);
533
534 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
535
536 BT_MBOX_PRINT(2, SNIFF_ACT, false);
537 BT_MBOX_PRINT(2, PAG, false);
538 BT_MBOX_PRINT(2, INQUIRY, false);
539 BT_MBOX_PRINT(2, CONN, false);
540 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
541 BT_MBOX_PRINT(2, DISC, false);
542 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
543 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
544 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
545 BT_MBOX_PRINT(2, SCO_DURATION, true);
546
547 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
548
549 BT_MBOX_PRINT(3, SCO_STATE, false);
550 BT_MBOX_PRINT(3, SNIFF_STATE, false);
551 BT_MBOX_PRINT(3, A2DP_STATE, false);
552 BT_MBOX_PRINT(3, A2DP_SRC, false);
553 BT_MBOX_PRINT(3, ACL_STATE, false);
554 BT_MBOX_PRINT(3, MSTR_STATE, false);
555 BT_MBOX_PRINT(3, OBX_STATE, false);
556 BT_MBOX_PRINT(3, OPEN_CON_2, false);
557 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
558 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
559 BT_MBOX_PRINT(3, INBAND_P, false);
560 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
561 BT_MBOX_PRINT(3, SSN_2, false);
562 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
563
564 return pos;
565}
566
567static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
568 size_t count, loff_t *ppos)
569{
570 struct iwl_mvm *mvm = file->private_data;
571 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
572 char *buf;
573 int ret, pos = 0, bufsz = sizeof(char) * 1024;
574
575 buf = kmalloc(bufsz, GFP_KERNEL);
576 if (!buf)
577 return -ENOMEM;
578
579 mutex_lock(&mvm->mutex);
580
581 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
582
583 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
584 notif->bt_ci_compliance);
585 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
586 le32_to_cpu(notif->primary_ch_lut));
587 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
588 le32_to_cpu(notif->secondary_ch_lut));
589 pos += scnprintf(buf + pos,
590 bufsz - pos, "bt_activity_grading = %d\n",
591 le32_to_cpu(notif->bt_activity_grading));
592 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
593 notif->rrc_status & 0xF);
594 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
595 notif->ttc_status & 0xF);
596
597 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
598 IWL_MVM_BT_COEX_SYNC2SCO);
599 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
600 IWL_MVM_BT_COEX_MPLUT);
601
602 mutex_unlock(&mvm->mutex);
603
604 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
605 kfree(buf);
606
607 return ret;
608}
609#undef BT_MBOX_PRINT
610
611static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
612 size_t count, loff_t *ppos)
613{
614 struct iwl_mvm *mvm = file->private_data;
615 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
616 char buf[256];
617 int bufsz = sizeof(buf);
618 int pos = 0;
619
620 mutex_lock(&mvm->mutex);
621
622 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
623 pos += scnprintf(buf + pos, bufsz - pos,
624 "\tPrimary Channel Bitmap 0x%016llx\n",
625 le64_to_cpu(cmd->bt_primary_ci));
626 pos += scnprintf(buf + pos, bufsz - pos,
627 "\tSecondary Channel Bitmap 0x%016llx\n",
628 le64_to_cpu(cmd->bt_secondary_ci));
629
630 mutex_unlock(&mvm->mutex);
631
632 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
633}
634
635static ssize_t
636iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
637 size_t count, loff_t *ppos)
638{
639 u32 bt_tx_prio;
640
641 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
642 return -EINVAL;
643 if (bt_tx_prio > 4)
644 return -EINVAL;
645
646 mvm->bt_tx_prio = bt_tx_prio;
647
648 return count;
649}
650
651static ssize_t
652iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
653 size_t count, loff_t *ppos)
654{
655 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
656 [BT_FORCE_ANT_DIS] = "dis",
657 [BT_FORCE_ANT_AUTO] = "auto",
658 [BT_FORCE_ANT_BT] = "bt",
659 [BT_FORCE_ANT_WIFI] = "wifi",
660 };
661 int ret, bt_force_ant_mode;
662
663 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
664 if (ret < 0)
665 return ret;
666
667 bt_force_ant_mode = ret;
668 ret = 0;
669 mutex_lock(&mvm->mutex);
670 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
671 goto out;
672
673 mvm->bt_force_ant_mode = bt_force_ant_mode;
674 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
675 modes_str[mvm->bt_force_ant_mode]);
676
677 if (iwl_mvm_firmware_running(mvm))
678 ret = iwl_mvm_send_bt_init_conf(mvm);
679 else
680 ret = 0;
681
682out:
683 mutex_unlock(&mvm->mutex);
684 return ret ?: count;
685}
686
687static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
688 size_t count, loff_t *ppos)
689{
690 struct iwl_mvm *mvm = file->private_data;
691 char *buff, *pos, *endpos;
692 static const size_t bufsz = 1024;
693 int ret;
694
695 buff = kmalloc(bufsz, GFP_KERNEL);
696 if (!buff)
697 return -ENOMEM;
698
699 pos = buff;
700 endpos = pos + bufsz;
701
702 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
703 mvm->trans->cfg->fw_name_pre);
704 pos += scnprintf(pos, endpos - pos, "FW: %s\n",
705 mvm->fwrt.fw->human_readable);
706 pos += scnprintf(pos, endpos - pos, "Device: %s\n",
707 mvm->fwrt.trans->name);
708 pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
709 mvm->fwrt.dev->bus->name);
710
711 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
712 kfree(buff);
713
714 return ret;
715}
716
717static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
718 char __user *user_buf,
719 size_t count, loff_t *ppos)
720{
721 struct iwl_mvm *mvm = file->private_data;
722 char *buf;
723 size_t bufsz;
724 int pos;
725 ssize_t ret;
726
727 bufsz = mvm->fw->phy_integration_ver_len + 2;
728 buf = kmalloc(bufsz, GFP_KERNEL);
729 if (!buf)
730 return -ENOMEM;
731
732 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
733 mvm->fw->phy_integration_ver);
734
735 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
736
737 kfree(buf);
738 return ret;
739}
740
741#define PRINT_STATS_LE32(_struct, _memb) \
742 pos += scnprintf(buf + pos, bufsz - pos, \
743 fmt_table, #_memb, \
744 le32_to_cpu(_struct->_memb))
745
746static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
747 char __user *user_buf, size_t count,
748 loff_t *ppos)
749{
750 struct iwl_mvm *mvm = file->private_data;
751 static const char *fmt_table = "\t%-30s %10u\n";
752 static const char *fmt_header = "%-32s\n";
753 int pos = 0;
754 char *buf;
755 int ret;
756 size_t bufsz;
757
758 if (iwl_mvm_has_new_rx_stats_api(mvm))
759 bufsz = ((sizeof(struct mvm_statistics_rx) /
760 sizeof(__le32)) * 43) + (4 * 33) + 1;
761 else
762 /* 43 = size of each data line; 33 = size of each header */
763 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
764 sizeof(__le32)) * 43) + (4 * 33) + 1;
765
766 buf = kzalloc(bufsz, GFP_KERNEL);
767 if (!buf)
768 return -ENOMEM;
769
770 mutex_lock(&mvm->mutex);
771
772 if (iwl_mvm_firmware_running(mvm))
773 iwl_mvm_request_statistics(mvm, false);
774
775 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
776 "Statistics_Rx - OFDM");
777 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
778 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
779
780 PRINT_STATS_LE32(ofdm, ina_cnt);
781 PRINT_STATS_LE32(ofdm, fina_cnt);
782 PRINT_STATS_LE32(ofdm, plcp_err);
783 PRINT_STATS_LE32(ofdm, crc32_err);
784 PRINT_STATS_LE32(ofdm, overrun_err);
785 PRINT_STATS_LE32(ofdm, early_overrun_err);
786 PRINT_STATS_LE32(ofdm, crc32_good);
787 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
788 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
789 PRINT_STATS_LE32(ofdm, sfd_timeout);
790 PRINT_STATS_LE32(ofdm, fina_timeout);
791 PRINT_STATS_LE32(ofdm, unresponded_rts);
792 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
793 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
794 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
795 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
796 PRINT_STATS_LE32(ofdm, dsp_self_kill);
797 PRINT_STATS_LE32(ofdm, mh_format_err);
798 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
799 PRINT_STATS_LE32(ofdm, reserved);
800 } else {
801 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
802
803 PRINT_STATS_LE32(ofdm, unresponded_rts);
804 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
805 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
806 PRINT_STATS_LE32(ofdm, dsp_self_kill);
807 PRINT_STATS_LE32(ofdm, reserved);
808 }
809
810 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
811 "Statistics_Rx - CCK");
812 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
813 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
814
815 PRINT_STATS_LE32(cck, ina_cnt);
816 PRINT_STATS_LE32(cck, fina_cnt);
817 PRINT_STATS_LE32(cck, plcp_err);
818 PRINT_STATS_LE32(cck, crc32_err);
819 PRINT_STATS_LE32(cck, overrun_err);
820 PRINT_STATS_LE32(cck, early_overrun_err);
821 PRINT_STATS_LE32(cck, crc32_good);
822 PRINT_STATS_LE32(cck, false_alarm_cnt);
823 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
824 PRINT_STATS_LE32(cck, sfd_timeout);
825 PRINT_STATS_LE32(cck, fina_timeout);
826 PRINT_STATS_LE32(cck, unresponded_rts);
827 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
828 PRINT_STATS_LE32(cck, sent_ack_cnt);
829 PRINT_STATS_LE32(cck, sent_cts_cnt);
830 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
831 PRINT_STATS_LE32(cck, dsp_self_kill);
832 PRINT_STATS_LE32(cck, mh_format_err);
833 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
834 PRINT_STATS_LE32(cck, reserved);
835 } else {
836 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
837
838 PRINT_STATS_LE32(cck, unresponded_rts);
839 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
840 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
841 PRINT_STATS_LE32(cck, dsp_self_kill);
842 PRINT_STATS_LE32(cck, reserved);
843 }
844
845 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
846 "Statistics_Rx - GENERAL");
847 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
848 struct mvm_statistics_rx_non_phy_v3 *general =
849 &mvm->rx_stats_v3.general;
850
851 PRINT_STATS_LE32(general, bogus_cts);
852 PRINT_STATS_LE32(general, bogus_ack);
853 PRINT_STATS_LE32(general, non_bssid_frames);
854 PRINT_STATS_LE32(general, filtered_frames);
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, dsp_false_alarms);
866 PRINT_STATS_LE32(general, beacon_rssi_a);
867 PRINT_STATS_LE32(general, beacon_rssi_b);
868 PRINT_STATS_LE32(general, beacon_rssi_c);
869 PRINT_STATS_LE32(general, beacon_energy_a);
870 PRINT_STATS_LE32(general, beacon_energy_b);
871 PRINT_STATS_LE32(general, beacon_energy_c);
872 PRINT_STATS_LE32(general, num_bt_kills);
873 PRINT_STATS_LE32(general, mac_id);
874 PRINT_STATS_LE32(general, directed_data_mpdu);
875 } else {
876 struct mvm_statistics_rx_non_phy *general =
877 &mvm->rx_stats.general;
878
879 PRINT_STATS_LE32(general, bogus_cts);
880 PRINT_STATS_LE32(general, bogus_ack);
881 PRINT_STATS_LE32(general, non_channel_beacons);
882 PRINT_STATS_LE32(general, channel_beacons);
883 PRINT_STATS_LE32(general, num_missed_bcon);
884 PRINT_STATS_LE32(general, adc_rx_saturation_time);
885 PRINT_STATS_LE32(general, ina_detection_search_time);
886 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
887 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
888 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
889 PRINT_STATS_LE32(general, interference_data_flag);
890 PRINT_STATS_LE32(general, channel_load);
891 PRINT_STATS_LE32(general, beacon_rssi_a);
892 PRINT_STATS_LE32(general, beacon_rssi_b);
893 PRINT_STATS_LE32(general, beacon_rssi_c);
894 PRINT_STATS_LE32(general, beacon_energy_a);
895 PRINT_STATS_LE32(general, beacon_energy_b);
896 PRINT_STATS_LE32(general, beacon_energy_c);
897 PRINT_STATS_LE32(general, num_bt_kills);
898 PRINT_STATS_LE32(general, mac_id);
899 }
900
901 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
902 "Statistics_Rx - HT");
903 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
904 struct mvm_statistics_rx_ht_phy_v1 *ht =
905 &mvm->rx_stats_v3.ofdm_ht;
906
907 PRINT_STATS_LE32(ht, plcp_err);
908 PRINT_STATS_LE32(ht, overrun_err);
909 PRINT_STATS_LE32(ht, early_overrun_err);
910 PRINT_STATS_LE32(ht, crc32_good);
911 PRINT_STATS_LE32(ht, crc32_err);
912 PRINT_STATS_LE32(ht, mh_format_err);
913 PRINT_STATS_LE32(ht, agg_crc32_good);
914 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
915 PRINT_STATS_LE32(ht, agg_cnt);
916 PRINT_STATS_LE32(ht, unsupport_mcs);
917 } else {
918 struct mvm_statistics_rx_ht_phy *ht =
919 &mvm->rx_stats.ofdm_ht;
920
921 PRINT_STATS_LE32(ht, mh_format_err);
922 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
923 PRINT_STATS_LE32(ht, agg_cnt);
924 PRINT_STATS_LE32(ht, unsupport_mcs);
925 }
926
927 mutex_unlock(&mvm->mutex);
928
929 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
930 kfree(buf);
931
932 return ret;
933}
934#undef PRINT_STAT_LE32
935
936static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
937 char __user *user_buf, size_t count,
938 loff_t *ppos,
939 struct iwl_mvm_frame_stats *stats)
940{
941 char *buff, *pos, *endpos;
942 int idx, i;
943 int ret;
944 static const size_t bufsz = 1024;
945
946 buff = kmalloc(bufsz, GFP_KERNEL);
947 if (!buff)
948 return -ENOMEM;
949
950 spin_lock_bh(&mvm->drv_stats_lock);
951
952 pos = buff;
953 endpos = pos + bufsz;
954
955 pos += scnprintf(pos, endpos - pos,
956 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
957 stats->legacy_frames,
958 stats->ht_frames,
959 stats->vht_frames);
960 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
961 stats->bw_20_frames,
962 stats->bw_40_frames,
963 stats->bw_80_frames);
964 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
965 stats->ngi_frames,
966 stats->sgi_frames);
967 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
968 stats->siso_frames,
969 stats->mimo2_frames);
970 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
971 stats->fail_frames,
972 stats->success_frames);
973 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
974 stats->agg_frames);
975 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
976 stats->ampdu_count);
977 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
978 stats->ampdu_count > 0 ?
979 (stats->agg_frames / stats->ampdu_count) : 0);
980
981 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
982
983 idx = stats->last_frame_idx - 1;
984 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
985 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
986 if (stats->last_rates[idx] == 0)
987 continue;
988 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
989 (int)(ARRAY_SIZE(stats->last_rates) - i));
990 pos += rs_pretty_print_rate_v1(pos, endpos - pos,
991 stats->last_rates[idx]);
992 if (pos < endpos - 1)
993 *pos++ = '\n';
994 }
995 spin_unlock_bh(&mvm->drv_stats_lock);
996
997 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
998 kfree(buff);
999
1000 return ret;
1001}
1002
1003static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
1004 char __user *user_buf, size_t count,
1005 loff_t *ppos)
1006{
1007 struct iwl_mvm *mvm = file->private_data;
1008
1009 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
1010 &mvm->drv_rx_stats);
1011}
1012
1013static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1014 size_t count, loff_t *ppos)
1015{
1016 int __maybe_unused ret;
1017
1018 if (!iwl_mvm_firmware_running(mvm))
1019 return -EIO;
1020
1021 mutex_lock(&mvm->mutex);
1022
1023 /* allow one more restart that we're provoking here */
1024 if (mvm->fw_restart >= 0)
1025 mvm->fw_restart++;
1026
1027 if (count == 6 && !strcmp(buf, "nolog\n")) {
1028 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1029 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
1030 }
1031
1032 /* take the return value to make compiler happy - it will fail anyway */
1033 ret = iwl_mvm_send_cmd_pdu(mvm,
1034 WIDE_ID(LONG_GROUP, REPLY_ERROR),
1035 0, 0, NULL);
1036
1037 mutex_unlock(&mvm->mutex);
1038
1039 return count;
1040}
1041
1042static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1043 size_t count, loff_t *ppos)
1044{
1045 if (!iwl_mvm_firmware_running(mvm))
1046 return -EIO;
1047
1048 if (count == 6 && !strcmp(buf, "nolog\n"))
1049 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1050
1051 iwl_force_nmi(mvm->trans);
1052
1053 return count;
1054}
1055
1056static ssize_t
1057iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1058 char __user *user_buf,
1059 size_t count, loff_t *ppos)
1060{
1061 struct iwl_mvm *mvm = file->private_data;
1062 int pos = 0;
1063 char buf[32];
1064 const size_t bufsz = sizeof(buf);
1065
1066 /* print which antennas were set for the scan command by the user */
1067 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1068 if (mvm->scan_rx_ant & ANT_A)
1069 pos += scnprintf(buf + pos, bufsz - pos, "A");
1070 if (mvm->scan_rx_ant & ANT_B)
1071 pos += scnprintf(buf + pos, bufsz - pos, "B");
1072 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
1073
1074 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1075}
1076
1077static ssize_t
1078iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1079 size_t count, loff_t *ppos)
1080{
1081 u8 scan_rx_ant;
1082
1083 if (!iwl_mvm_firmware_running(mvm))
1084 return -EIO;
1085
1086 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1087 return -EINVAL;
1088 if (scan_rx_ant > ANT_ABC)
1089 return -EINVAL;
1090 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1091 return -EINVAL;
1092
1093 if (mvm->scan_rx_ant != scan_rx_ant) {
1094 mvm->scan_rx_ant = scan_rx_ant;
1095 if (fw_has_capa(&mvm->fw->ucode_capa,
1096 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1097 iwl_mvm_config_scan(mvm);
1098 }
1099
1100 return count;
1101}
1102
1103static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1104 char *buf, size_t count,
1105 loff_t *ppos)
1106{
1107 struct iwl_rss_config_cmd cmd = {
1108 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1109 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1110 IWL_RSS_HASH_TYPE_IPV4_UDP |
1111 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1112 IWL_RSS_HASH_TYPE_IPV6_TCP |
1113 IWL_RSS_HASH_TYPE_IPV6_UDP |
1114 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1115 };
1116 int ret, i, num_repeats, nbytes = count / 2;
1117
1118 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1119 if (ret)
1120 return ret;
1121
1122 /*
1123 * The input is the redirection table, partial or full.
1124 * Repeat the pattern if needed.
1125 * For example, input of 01020F will be repeated 42 times,
1126 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1127 * queues 3 - 14).
1128 */
1129 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1130 for (i = 1; i < num_repeats; i++)
1131 memcpy(&cmd.indirection_table[i * nbytes],
1132 cmd.indirection_table, nbytes);
1133 /* handle cut in the middle pattern for the last places */
1134 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1135 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1136
1137 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1138
1139 mutex_lock(&mvm->mutex);
1140 if (iwl_mvm_firmware_running(mvm))
1141 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1142 sizeof(cmd), &cmd);
1143 else
1144 ret = 0;
1145 mutex_unlock(&mvm->mutex);
1146
1147 return ret ?: count;
1148}
1149
1150static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1151 char *buf, size_t count,
1152 loff_t *ppos)
1153{
1154 struct iwl_op_mode *opmode = container_of((void *)mvm,
1155 struct iwl_op_mode,
1156 op_mode_specific);
1157 struct iwl_rx_cmd_buffer rxb = {
1158 ._rx_page_order = 0,
1159 .truesize = 0, /* not used */
1160 ._offset = 0,
1161 };
1162 struct iwl_rx_packet *pkt;
1163 int bin_len = count / 2;
1164 int ret = -EINVAL;
1165
1166 if (!iwl_mvm_firmware_running(mvm))
1167 return -EIO;
1168
1169 /* supporting only MQ RX */
1170 if (!mvm->trans->trans_cfg->mq_rx_supported)
1171 return -ENOTSUPP;
1172
1173 rxb._page = alloc_pages(GFP_ATOMIC, 0);
1174 if (!rxb._page)
1175 return -ENOMEM;
1176 pkt = rxb_addr(&rxb);
1177
1178 ret = hex2bin(page_address(rxb._page), buf, bin_len);
1179 if (ret)
1180 goto out;
1181
1182 /* avoid invalid memory access and malformed packet */
1183 if (bin_len < sizeof(*pkt) ||
1184 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
1185 goto out;
1186
1187 local_bh_disable();
1188 iwl_mvm_rx_mq(opmode, NULL, &rxb);
1189 local_bh_enable();
1190 ret = 0;
1191
1192out:
1193 iwl_free_rxb(&rxb);
1194
1195 return ret ?: count;
1196}
1197
1198static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1199{
1200 struct ieee80211_vif *vif;
1201 struct iwl_mvm_vif *mvmvif;
1202 struct sk_buff *beacon;
1203 struct ieee80211_tx_info *info;
1204 struct iwl_mac_beacon_cmd beacon_cmd = {};
1205 u8 rate;
1206 int i;
1207
1208 len /= 2;
1209
1210 /* Element len should be represented by u8 */
1211 if (len >= U8_MAX)
1212 return -EINVAL;
1213
1214 if (!iwl_mvm_firmware_running(mvm))
1215 return -EIO;
1216
1217 if (!iwl_mvm_has_new_tx_api(mvm) &&
1218 !fw_has_api(&mvm->fw->ucode_capa,
1219 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1220 return -EINVAL;
1221
1222 mutex_lock(&mvm->mutex);
1223
1224 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1225 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1226 if (!vif)
1227 continue;
1228
1229 if (vif->type == NL80211_IFTYPE_AP)
1230 break;
1231 }
1232
1233 if (i == NUM_MAC_INDEX_DRIVER || !vif)
1234 goto out_err;
1235
1236 mvm->hw->extra_beacon_tailroom = len;
1237
1238 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0);
1239 if (!beacon)
1240 goto out_err;
1241
1242 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1243 dev_kfree_skb(beacon);
1244 goto out_err;
1245 }
1246
1247 mvm->beacon_inject_active = true;
1248
1249 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1250 info = IEEE80211_SKB_CB(beacon);
1251 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif);
1252
1253 beacon_cmd.flags =
1254 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate));
1255 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1256 beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
1257
1258 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1259 &beacon_cmd.tim_size,
1260 beacon->data, beacon->len);
1261
1262 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1263 sizeof(beacon_cmd));
1264 mutex_unlock(&mvm->mutex);
1265
1266 dev_kfree_skb(beacon);
1267
1268 return 0;
1269
1270out_err:
1271 mutex_unlock(&mvm->mutex);
1272 return -EINVAL;
1273}
1274
1275static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1276 char *buf, size_t count,
1277 loff_t *ppos)
1278{
1279 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1280
1281 mvm->hw->extra_beacon_tailroom = 0;
1282 return ret ?: count;
1283}
1284
1285static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1286 char *buf,
1287 size_t count,
1288 loff_t *ppos)
1289{
1290 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1291
1292 mvm->hw->extra_beacon_tailroom = 0;
1293 mvm->beacon_inject_active = false;
1294 return ret ?: count;
1295}
1296
1297static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1298 char __user *user_buf,
1299 size_t count, loff_t *ppos)
1300{
1301 struct iwl_mvm *mvm = file->private_data;
1302 int conf;
1303 char buf[8];
1304 const size_t bufsz = sizeof(buf);
1305 int pos = 0;
1306
1307 mutex_lock(&mvm->mutex);
1308 conf = mvm->fwrt.dump.conf;
1309 mutex_unlock(&mvm->mutex);
1310
1311 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1312
1313 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1314}
1315
1316static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1317 char *buf, size_t count,
1318 loff_t *ppos)
1319{
1320 unsigned int conf_id;
1321 int ret;
1322
1323 if (!iwl_mvm_firmware_running(mvm))
1324 return -EIO;
1325
1326 ret = kstrtouint(buf, 0, &conf_id);
1327 if (ret)
1328 return ret;
1329
1330 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1331 return -EINVAL;
1332
1333 mutex_lock(&mvm->mutex);
1334 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1335 mutex_unlock(&mvm->mutex);
1336
1337 return ret ?: count;
1338}
1339
1340static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1341 char *buf, size_t count,
1342 loff_t *ppos)
1343{
1344 if (count == 0)
1345 return 0;
1346
1347 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1348 NULL);
1349
1350 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1351 (count - 1), NULL);
1352
1353 return count;
1354}
1355
1356static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
1357 char *buf, size_t count,
1358 loff_t *ppos)
1359{
1360 u32 timepoint;
1361
1362 if (kstrtou32(buf, 0, &timepoint))
1363 return -EINVAL;
1364
1365 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
1366 timepoint >= IWL_FW_INI_TIME_POINT_NUM)
1367 return -EINVAL;
1368
1369 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
1370
1371 return count;
1372}
1373
1374#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1375 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1376#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1377 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1378#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1379 debugfs_create_file(alias, mode, parent, mvm, \
1380 &iwl_dbgfs_##name##_ops); \
1381 } while (0)
1382#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1383 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1384
1385#define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
1386 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1387#define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
1388 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1389
1390#define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \
1391 debugfs_create_file(alias, mode, parent, sta, \
1392 &iwl_dbgfs_##name##_ops); \
1393 } while (0)
1394#define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
1395 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
1396
1397static ssize_t
1398iwl_dbgfs_prph_reg_read(struct file *file,
1399 char __user *user_buf,
1400 size_t count, loff_t *ppos)
1401{
1402 struct iwl_mvm *mvm = file->private_data;
1403 int pos = 0;
1404 char buf[32];
1405 const size_t bufsz = sizeof(buf);
1406
1407 if (!mvm->dbgfs_prph_reg_addr)
1408 return -EINVAL;
1409
1410 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1411 mvm->dbgfs_prph_reg_addr,
1412 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1413
1414 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1415}
1416
1417static ssize_t
1418iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1419 size_t count, loff_t *ppos)
1420{
1421 u8 args;
1422 u32 value;
1423
1424 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1425 /* if we only want to set the reg address - nothing more to do */
1426 if (args == 1)
1427 goto out;
1428
1429 /* otherwise, make sure we have both address and value */
1430 if (args != 2)
1431 return -EINVAL;
1432
1433 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1434
1435out:
1436 return count;
1437}
1438
1439static ssize_t
1440iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1441 size_t count, loff_t *ppos)
1442{
1443 int ret;
1444
1445 if (!iwl_mvm_firmware_running(mvm))
1446 return -EIO;
1447
1448 mutex_lock(&mvm->mutex);
1449 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1450 mutex_unlock(&mvm->mutex);
1451
1452 return ret ?: count;
1453}
1454
1455struct iwl_mvm_sniffer_apply {
1456 struct iwl_mvm *mvm;
1457 u8 *bssid;
1458 u16 aid;
1459};
1460
1461static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1462 struct iwl_rx_packet *pkt, void *data)
1463{
1464 struct iwl_mvm_sniffer_apply *apply = data;
1465
1466 apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1467 memcpy(apply->mvm->cur_bssid, apply->bssid,
1468 sizeof(apply->mvm->cur_bssid));
1469
1470 return true;
1471}
1472
1473static ssize_t
1474iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1475 size_t count, loff_t *ppos)
1476{
1477 struct iwl_notification_wait wait;
1478 struct iwl_he_monitor_cmd he_mon_cmd = {};
1479 struct iwl_mvm_sniffer_apply apply = {
1480 .mvm = mvm,
1481 };
1482 u16 wait_cmds[] = {
1483 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1484 };
1485 u32 aid;
1486 int ret;
1487
1488 if (!iwl_mvm_firmware_running(mvm))
1489 return -EIO;
1490
1491 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1492 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1493 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1494 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1495 if (ret != 7)
1496 return -EINVAL;
1497
1498 he_mon_cmd.aid = cpu_to_le16(aid);
1499
1500 apply.aid = aid;
1501 apply.bssid = (void *)he_mon_cmd.bssid;
1502
1503 mutex_lock(&mvm->mutex);
1504
1505 /*
1506 * Use the notification waiter to get our function triggered
1507 * in sequence with other RX. This ensures that frames we get
1508 * on the RX queue _before_ the new configuration is applied
1509 * still have mvm->cur_aid pointing to the old AID, and that
1510 * frames on the RX queue _after_ the firmware processed the
1511 * new configuration (and sent the response, synchronously)
1512 * get mvm->cur_aid correctly set to the new AID.
1513 */
1514 iwl_init_notification_wait(&mvm->notif_wait, &wait,
1515 wait_cmds, ARRAY_SIZE(wait_cmds),
1516 iwl_mvm_sniffer_apply, &apply);
1517
1518 ret = iwl_mvm_send_cmd_pdu(mvm,
1519 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1520 0,
1521 sizeof(he_mon_cmd), &he_mon_cmd);
1522
1523 /* no need to really wait, we already did anyway */
1524 iwl_remove_notification(&mvm->notif_wait, &wait);
1525
1526 mutex_unlock(&mvm->mutex);
1527
1528 return ret ?: count;
1529}
1530
1531static ssize_t
1532iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
1533 size_t count, loff_t *ppos)
1534{
1535 struct iwl_mvm *mvm = file->private_data;
1536 u8 buf[32];
1537 int len;
1538
1539 len = scnprintf(buf, sizeof(buf),
1540 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
1541 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
1542 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
1543 mvm->cur_bssid[4], mvm->cur_bssid[5]);
1544
1545 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1546}
1547
1548static ssize_t
1549iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1550 size_t count, loff_t *ppos)
1551{
1552 struct iwl_mvm *mvm = file->private_data;
1553 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1554 unsigned int pos = 0;
1555 size_t bufsz = sizeof(buf);
1556 int i;
1557
1558 mutex_lock(&mvm->mutex);
1559
1560 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1561 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1562 mvm->uapsd_noagg_bssids[i].addr);
1563
1564 mutex_unlock(&mvm->mutex);
1565
1566 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1567}
1568
1569static ssize_t
1570iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
1571 char *buf, size_t count, loff_t *ppos)
1572{
1573 int ret;
1574 struct iwl_ltr_config_cmd ltr_config = {0};
1575
1576 if (!iwl_mvm_firmware_running(mvm))
1577 return -EIO;
1578
1579 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
1580 <r_config.flags,
1581 <r_config.static_long,
1582 <r_config.static_short,
1583 <r_config.ltr_cfg_values[0],
1584 <r_config.ltr_cfg_values[1],
1585 <r_config.ltr_cfg_values[2],
1586 <r_config.ltr_cfg_values[3]) != 7) {
1587 return -EINVAL;
1588 }
1589
1590 mutex_lock(&mvm->mutex);
1591 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
1592 <r_config);
1593 mutex_unlock(&mvm->mutex);
1594
1595 if (ret)
1596 IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
1597
1598 return ret ?: count;
1599}
1600
1601static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
1602 size_t count, loff_t *ppos)
1603{
1604 int ret = 0;
1605 u16 op_id;
1606
1607 if (kstrtou16(buf, 10, &op_id))
1608 return -EINVAL;
1609
1610 /* value zero triggers re-sending the default table to the device */
1611 if (!op_id) {
1612 mutex_lock(&mvm->mutex);
1613 ret = iwl_rfi_send_config_cmd(mvm, NULL);
1614 mutex_unlock(&mvm->mutex);
1615 } else {
1616 ret = -EOPNOTSUPP; /* in the future a new table will be added */
1617 }
1618
1619 return ret ?: count;
1620}
1621
1622/* The size computation is as follows:
1623 * each number needs at most 3 characters, number of rows is the size of
1624 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards
1625 * needs 6 characters for numbers and 5 for the punctuation around.
1626 */
1627#define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
1628 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
1629
1630static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
1631 char __user *user_buf,
1632 size_t count, loff_t *ppos)
1633{
1634 struct iwl_mvm *mvm = file->private_data;
1635 struct iwl_rfi_freq_table_resp_cmd *resp;
1636 u32 status;
1637 char buf[IWL_RFI_BUF_SIZE];
1638 int i, j, pos = 0;
1639
1640 resp = iwl_rfi_get_freq_table(mvm);
1641 if (IS_ERR(resp))
1642 return PTR_ERR(resp);
1643
1644 status = le32_to_cpu(resp->status);
1645 if (status != RFI_FREQ_TABLE_OK) {
1646 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
1647 goto out;
1648 }
1649
1650 for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
1651 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
1652 resp->table[i].freq);
1653
1654 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
1655 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
1656 "(%d, %d) ",
1657 resp->table[i].channels[j],
1658 resp->table[i].bands[j]);
1659 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
1660 }
1661
1662out:
1663 kfree(resp);
1664 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1665}
1666
1667MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1668
1669/* Device wide debugfs entries */
1670MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1671MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1672MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1673MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1674MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1675MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1676MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1677MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1678MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1679MVM_DEBUGFS_READ_FILE_OPS(stations);
1680MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1681MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1682MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1683MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1684MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1685MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1686MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1687MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
1688MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1689MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1690MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1691MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1692MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1693MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1694MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1695MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
1696MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1697 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1698MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1699MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1700MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1701
1702MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1703
1704#ifdef CONFIG_ACPI
1705MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1706#endif
1707
1708MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
1709
1710MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
1711
1712MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
1713MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
1714
1715static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1716 size_t count, loff_t *ppos)
1717{
1718 struct iwl_mvm *mvm = file->private_data;
1719 struct iwl_dbg_mem_access_cmd cmd = {};
1720 struct iwl_dbg_mem_access_rsp *rsp;
1721 struct iwl_host_cmd hcmd = {
1722 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1723 .data = { &cmd, },
1724 .len = { sizeof(cmd) },
1725 };
1726 size_t delta;
1727 ssize_t ret, len;
1728
1729 if (!iwl_mvm_firmware_running(mvm))
1730 return -EIO;
1731
1732 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
1733 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1734
1735 /* Take care of alignment of both the position and the length */
1736 delta = *ppos & 0x3;
1737 cmd.addr = cpu_to_le32(*ppos - delta);
1738 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1739 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1740
1741 mutex_lock(&mvm->mutex);
1742 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1743 mutex_unlock(&mvm->mutex);
1744
1745 if (ret < 0)
1746 return ret;
1747
1748 rsp = (void *)hcmd.resp_pkt->data;
1749 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1750 ret = -ENXIO;
1751 goto out;
1752 }
1753
1754 len = min((size_t)le32_to_cpu(rsp->len) << 2,
1755 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1756 len = min(len - delta, count);
1757 if (len < 0) {
1758 ret = -EFAULT;
1759 goto out;
1760 }
1761
1762 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
1763 *ppos += ret;
1764
1765out:
1766 iwl_free_resp(&hcmd);
1767 return ret;
1768}
1769
1770static ssize_t iwl_dbgfs_mem_write(struct file *file,
1771 const char __user *user_buf, size_t count,
1772 loff_t *ppos)
1773{
1774 struct iwl_mvm *mvm = file->private_data;
1775 struct iwl_dbg_mem_access_cmd *cmd;
1776 struct iwl_dbg_mem_access_rsp *rsp;
1777 struct iwl_host_cmd hcmd = {};
1778 size_t cmd_size;
1779 size_t data_size;
1780 u32 op, len;
1781 ssize_t ret;
1782
1783 if (!iwl_mvm_firmware_running(mvm))
1784 return -EIO;
1785
1786 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
1787
1788 if (*ppos & 0x3 || count < 4) {
1789 op = DEBUG_MEM_OP_WRITE_BYTES;
1790 len = min(count, (size_t)(4 - (*ppos & 0x3)));
1791 data_size = len;
1792 } else {
1793 op = DEBUG_MEM_OP_WRITE;
1794 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1795 data_size = len << 2;
1796 }
1797
1798 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1799 cmd = kzalloc(cmd_size, GFP_KERNEL);
1800 if (!cmd)
1801 return -ENOMEM;
1802
1803 cmd->op = cpu_to_le32(op);
1804 cmd->len = cpu_to_le32(len);
1805 cmd->addr = cpu_to_le32(*ppos);
1806 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1807 kfree(cmd);
1808 return -EFAULT;
1809 }
1810
1811 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1812 hcmd.data[0] = (void *)cmd;
1813 hcmd.len[0] = cmd_size;
1814
1815 mutex_lock(&mvm->mutex);
1816 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1817 mutex_unlock(&mvm->mutex);
1818
1819 kfree(cmd);
1820
1821 if (ret < 0)
1822 return ret;
1823
1824 rsp = (void *)hcmd.resp_pkt->data;
1825 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1826 ret = -ENXIO;
1827 goto out;
1828 }
1829
1830 ret = data_size;
1831 *ppos += ret;
1832
1833out:
1834 iwl_free_resp(&hcmd);
1835 return ret;
1836}
1837
1838static const struct file_operations iwl_dbgfs_mem_ops = {
1839 .read = iwl_dbgfs_mem_read,
1840 .write = iwl_dbgfs_mem_write,
1841 .open = simple_open,
1842 .llseek = default_llseek,
1843};
1844
1845void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif,
1847 struct ieee80211_sta *sta,
1848 struct dentry *dir)
1849{
1850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1851
1852 if (iwl_mvm_has_tlc_offload(mvm)) {
1853 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
1854 }
1855 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600);
1856}
1857
1858void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
1859{
1860 struct dentry *bcast_dir __maybe_unused;
1861
1862 spin_lock_init(&mvm->drv_stats_lock);
1863
1864 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
1865 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
1866 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
1867 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
1868 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
1869 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
1870 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
1871 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
1872 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
1873 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400);
1874 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400);
1875 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
1876 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
1877 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
1878 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
1879 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
1880 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
1881 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
1882 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
1883 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
1884 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
1885 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
1886 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
1887 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
1888 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
1889 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
1890 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
1891 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
1892 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
1893 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
1894
1895 if (mvm->fw->phy_integration_ver)
1896 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
1897#ifdef CONFIG_ACPI
1898 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
1899#endif
1900 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
1901
1902 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
1903 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
1904
1905 debugfs_create_bool("enable_scan_iteration_notif", 0600,
1906 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
1907 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
1908 &mvm->drop_bcn_ap_mode);
1909
1910 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
1911
1912#ifdef CONFIG_PM_SLEEP
1913 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
1914 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
1915 &mvm->d3_wake_sysassert);
1916 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
1917 &mvm->last_netdetect_scans);
1918#endif
1919
1920 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
1921 &mvm->ps_disabled);
1922 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
1923 &mvm->nvm_hw_blob);
1924 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
1925 &mvm->nvm_sw_blob);
1926 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
1927 &mvm->nvm_calib_blob);
1928 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
1929 &mvm->nvm_prod_blob);
1930 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
1931 &mvm->nvm_phy_sku_blob);
1932 debugfs_create_blob("nvm_reg", S_IRUSR,
1933 mvm->debugfs_dir, &mvm->nvm_reg_blob);
1934
1935 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
1936 &iwl_dbgfs_mem_ops);
1937
1938 /*
1939 * Create a symlink with mac80211. It will be removed when mac80211
1940 * exists (before the opmode exists which removes the target.)
1941 */
1942 if (!IS_ERR(mvm->debugfs_dir)) {
1943 char buf[100];
1944
1945 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
1946 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
1947 buf);
1948 }
1949}