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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018-2023 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#include <linux/dmi.h>
12
13#include "mvm.h"
14#include "sta.h"
15#include "iwl-io.h"
16#include "debugfs.h"
17#include "iwl-modparams.h"
18#include "iwl-drv.h"
19#include "fw/error-dump.h"
20#include "fw/api/phy-ctxt.h"
21
22static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
23 char __user *user_buf,
24 size_t count, loff_t *ppos)
25{
26 struct iwl_mvm *mvm = file->private_data;
27 char buf[16];
28 int pos, budget;
29
30 if (!iwl_mvm_is_ctdp_supported(mvm))
31 return -EOPNOTSUPP;
32
33 if (!iwl_mvm_firmware_running(mvm) ||
34 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
35 return -EIO;
36
37 mutex_lock(&mvm->mutex);
38 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
39 mutex_unlock(&mvm->mutex);
40
41 if (budget < 0)
42 return budget;
43
44 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
45
46 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
47}
48
49static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
50 size_t count, loff_t *ppos)
51{
52 int ret;
53 bool force;
54
55 if (!kstrtobool(buf, &force))
56 IWL_DEBUG_INFO(mvm,
57 "force start is %d [0=disabled, 1=enabled]\n",
58 force);
59
60 /* we allow skipping cap support check and force stop ctdp
61 * statistics collection and with guerantee that it is
62 * safe to use.
63 */
64 if (!force && !iwl_mvm_is_ctdp_supported(mvm))
65 return -EOPNOTSUPP;
66
67 if (!iwl_mvm_firmware_running(mvm) ||
68 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
69 return -EIO;
70
71 mutex_lock(&mvm->mutex);
72 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
73 mutex_unlock(&mvm->mutex);
74
75 return ret ?: count;
76}
77
78static ssize_t iwl_dbgfs_start_ctdp_write(struct iwl_mvm *mvm,
79 char *buf, size_t count,
80 loff_t *ppos)
81{
82 int ret;
83 bool force;
84
85 if (!kstrtobool(buf, &force))
86 IWL_DEBUG_INFO(mvm,
87 "force start is %d [0=disabled, 1=enabled]\n",
88 force);
89
90 /* we allow skipping cap support check and force enable ctdp
91 * for statistics collection and with guerantee that it is
92 * safe to use.
93 */
94 if (!force && !iwl_mvm_is_ctdp_supported(mvm))
95 return -EOPNOTSUPP;
96
97 if (!iwl_mvm_firmware_running(mvm) ||
98 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
99 return -EIO;
100
101 mutex_lock(&mvm->mutex);
102 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, 0);
103 mutex_unlock(&mvm->mutex);
104
105 return ret ?: count;
106}
107
108static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
109 size_t count, loff_t *ppos)
110{
111 if (!iwl_mvm_firmware_running(mvm) ||
112 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
113 return -EIO;
114
115 iwl_mvm_enter_ctkill(mvm);
116
117 return count;
118}
119
120static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
121 size_t count, loff_t *ppos)
122{
123 int ret;
124 u32 flush_arg;
125
126 if (!iwl_mvm_firmware_running(mvm) ||
127 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
128 return -EIO;
129
130 if (kstrtou32(buf, 0, &flush_arg))
131 return -EINVAL;
132
133 if (iwl_mvm_has_new_tx_api(mvm)) {
134 IWL_DEBUG_TX_QUEUES(mvm,
135 "FLUSHING all tids queues on sta_id = %d\n",
136 flush_arg);
137 mutex_lock(&mvm->mutex);
138 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF)
139 ? : count;
140 mutex_unlock(&mvm->mutex);
141 return ret;
142 }
143
144 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
145 flush_arg);
146
147 mutex_lock(&mvm->mutex);
148 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count;
149 mutex_unlock(&mvm->mutex);
150
151 return ret;
152}
153
154static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
155 size_t count, loff_t *ppos)
156{
157 struct iwl_mvm_sta *mvmsta;
158 int sta_id, drain, ret;
159
160 if (!iwl_mvm_firmware_running(mvm) ||
161 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
162 return -EIO;
163
164 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
165 return -EINVAL;
166 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations)
167 return -EINVAL;
168 if (drain < 0 || drain > 1)
169 return -EINVAL;
170
171 mutex_lock(&mvm->mutex);
172
173 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
174
175 if (!mvmsta)
176 ret = -ENOENT;
177 else
178 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
179
180 mutex_unlock(&mvm->mutex);
181
182 return ret;
183}
184
185static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
186 size_t count, loff_t *ppos)
187{
188 struct iwl_mvm *mvm = file->private_data;
189 const struct fw_img *img;
190 unsigned int ofs, len;
191 size_t ret;
192 u8 *ptr;
193
194 if (!iwl_mvm_firmware_running(mvm))
195 return -EINVAL;
196
197 /* default is to dump the entire data segment */
198 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
199 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
200 len = img->sec[IWL_UCODE_SECTION_DATA].len;
201
202 if (mvm->dbgfs_sram_len) {
203 ofs = mvm->dbgfs_sram_offset;
204 len = mvm->dbgfs_sram_len;
205 }
206
207 ptr = kzalloc(len, GFP_KERNEL);
208 if (!ptr)
209 return -ENOMEM;
210
211 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
212
213 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
214
215 kfree(ptr);
216
217 return ret;
218}
219
220static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
221 size_t count, loff_t *ppos)
222{
223 const struct fw_img *img;
224 u32 offset, len;
225 u32 img_offset, img_len;
226
227 if (!iwl_mvm_firmware_running(mvm))
228 return -EINVAL;
229
230 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
231 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
232 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
233
234 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
235 if ((offset & 0x3) || (len & 0x3))
236 return -EINVAL;
237
238 if (offset + len > img_offset + img_len)
239 return -EINVAL;
240
241 mvm->dbgfs_sram_offset = offset;
242 mvm->dbgfs_sram_len = len;
243 } else {
244 mvm->dbgfs_sram_offset = 0;
245 mvm->dbgfs_sram_len = 0;
246 }
247
248 return count;
249}
250
251static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
252 char __user *user_buf,
253 size_t count, loff_t *ppos)
254{
255 struct iwl_mvm *mvm = file->private_data;
256 char buf[16];
257 int pos;
258
259 if (!mvm->temperature_test)
260 pos = scnprintf(buf, sizeof(buf), "disabled\n");
261 else
262 pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature);
263
264 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
265}
266
267/*
268 * Set NIC Temperature
269 * Cause the driver to ignore the actual NIC temperature reported by the FW
270 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
271 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
272 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
273 */
274static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
275 char *buf, size_t count,
276 loff_t *ppos)
277{
278 int temperature;
279
280 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
281 return -EIO;
282
283 if (kstrtoint(buf, 10, &temperature))
284 return -EINVAL;
285 /* not a legal temperature */
286 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
287 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
288 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
289 return -EINVAL;
290
291 mutex_lock(&mvm->mutex);
292 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
293 if (!mvm->temperature_test)
294 goto out;
295
296 mvm->temperature_test = false;
297 /* Since we can't read the temp while awake, just set
298 * it to zero until we get the next RX stats from the
299 * firmware.
300 */
301 mvm->temperature = 0;
302 } else {
303 mvm->temperature_test = true;
304 mvm->temperature = temperature;
305 }
306 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
307 mvm->temperature_test ? "En" : "Dis",
308 mvm->temperature);
309 /* handle the temperature change */
310 iwl_mvm_tt_handler(mvm);
311
312out:
313 mutex_unlock(&mvm->mutex);
314
315 return count;
316}
317
318static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
319 char __user *user_buf,
320 size_t count, loff_t *ppos)
321{
322 struct iwl_mvm *mvm = file->private_data;
323 char buf[16];
324 int pos, ret;
325 s32 temp;
326
327 if (!iwl_mvm_firmware_running(mvm))
328 return -EIO;
329
330 mutex_lock(&mvm->mutex);
331 ret = iwl_mvm_get_temp(mvm, &temp);
332 mutex_unlock(&mvm->mutex);
333
334 if (ret)
335 return -EIO;
336
337 pos = scnprintf(buf, sizeof(buf), "%d\n", temp);
338
339 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
340}
341
342#ifdef CONFIG_ACPI
343static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
344 char __user *user_buf,
345 size_t count, loff_t *ppos)
346{
347 struct iwl_mvm *mvm = file->private_data;
348 char buf[256];
349 int pos = 0;
350 int bufsz = sizeof(buf);
351 int tbl_idx;
352
353 if (!iwl_mvm_firmware_running(mvm))
354 return -EIO;
355
356 mutex_lock(&mvm->mutex);
357 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
358 if (tbl_idx < 0) {
359 mutex_unlock(&mvm->mutex);
360 return tbl_idx;
361 }
362
363 if (!tbl_idx) {
364 pos = scnprintf(buf, bufsz,
365 "SAR geographic profile disabled\n");
366 } else {
367 pos += scnprintf(buf + pos, bufsz - pos,
368 "Use geographic profile %d\n", tbl_idx);
369 pos += scnprintf(buf + pos, bufsz - pos,
370 "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
371 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0],
372 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1],
373 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max);
374 pos += scnprintf(buf + pos, bufsz - pos,
375 "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
376 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0],
377 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1],
378 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max);
379 }
380 mutex_unlock(&mvm->mutex);
381
382 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
383}
384
385static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file,
386 char __user *user_buf,
387 size_t count, loff_t *ppos)
388{
389 struct iwl_mvm *mvm = file->private_data;
390 int err, pos;
391 char buf[12];
392 u32 value;
393
394 err = iwl_acpi_get_dsm_u32(mvm->fwrt.dev, 0,
395 DSM_FUNC_ENABLE_6E,
396 &iwl_guid, &value);
397 if (err)
398 return err;
399
400 pos = sprintf(buf, "0x%08x\n", value);
401
402 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
403}
404#endif
405
406static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
407 size_t count, loff_t *ppos)
408{
409 struct iwl_mvm *mvm = file->private_data;
410 struct ieee80211_sta *sta;
411 char buf[400];
412 int i, pos = 0, bufsz = sizeof(buf);
413
414 mutex_lock(&mvm->mutex);
415
416 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
417 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
418 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
419 lockdep_is_held(&mvm->mutex));
420 if (!sta)
421 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
422 else if (IS_ERR(sta))
423 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
424 PTR_ERR(sta));
425 else
426 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
427 sta->addr);
428 }
429
430 mutex_unlock(&mvm->mutex);
431
432 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
433}
434
435static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta,
436 struct iwl_mvm_sta *mvmsta,
437 struct iwl_mvm *mvm,
438 struct iwl_mvm_link_sta *mvm_link_sta,
439 char __user *user_buf,
440 size_t count, loff_t *ppos)
441{
442 struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw;
443 static const size_t bufsz = 2048;
444 char *buff;
445 int desc = 0;
446 ssize_t ret;
447
448 buff = kmalloc(bufsz, GFP_KERNEL);
449 if (!buff)
450 return -ENOMEM;
451
452 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
453 lq_sta->pers.sta_id);
454 desc += scnprintf(buff + desc, bufsz - desc,
455 "fixed rate 0x%X\n",
456 lq_sta->pers.dbg_fixed_rate);
457 desc += scnprintf(buff + desc, bufsz - desc,
458 "A-MPDU size limit %d\n",
459 lq_sta->pers.dbg_agg_frame_count_lim);
460 desc += scnprintf(buff + desc, bufsz - desc,
461 "valid_tx_ant %s%s\n",
462 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
463 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "");
464 desc += scnprintf(buff + desc, bufsz - desc,
465 "last tx rate=0x%X ",
466 lq_sta->last_rate_n_flags);
467
468 desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
469 lq_sta->last_rate_n_flags);
470 if (desc < bufsz - 1)
471 buff[desc++] = '\n';
472
473 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
474 kfree(buff);
475 return ret;
476}
477
478static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta,
479 struct iwl_mvm_sta *mvmsta,
480 struct iwl_mvm *mvm,
481 struct iwl_mvm_link_sta *mvm_link_sta,
482 char *buf, size_t count,
483 loff_t *ppos)
484{
485 int i;
486 u16 amsdu_len;
487
488 if (kstrtou16(buf, 0, &amsdu_len))
489 return -EINVAL;
490
491 /* only change from debug set <-> debug unset */
492 if (amsdu_len && mvm_link_sta->orig_amsdu_len)
493 return -EBUSY;
494
495 if (amsdu_len) {
496 mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len;
497 link_sta->agg.max_amsdu_len = amsdu_len;
498 link_sta->agg.max_amsdu_len = amsdu_len;
499 for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++)
500 link_sta->agg.max_tid_amsdu_len[i] = amsdu_len;
501 } else {
502 link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len;
503 mvm_link_sta->orig_amsdu_len = 0;
504 }
505
506 ieee80211_sta_recalc_aggregates(link_sta->sta);
507
508 return count;
509}
510
511static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta,
512 struct iwl_mvm_sta *mvmsta,
513 struct iwl_mvm *mvm,
514 struct iwl_mvm_link_sta *mvm_link_sta,
515 char __user *user_buf,
516 size_t count, loff_t *ppos)
517{
518 char buf[32];
519 int pos;
520
521 pos = scnprintf(buf, sizeof(buf), "current %d ",
522 link_sta->agg.max_amsdu_len);
523 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
524 mvm_link_sta->orig_amsdu_len);
525
526 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
527}
528
529static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
530 char __user *user_buf,
531 size_t count, loff_t *ppos)
532{
533 struct iwl_mvm *mvm = file->private_data;
534 char buf[64];
535 int bufsz = sizeof(buf);
536 int pos = 0;
537
538 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
539 mvm->disable_power_off);
540 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
541 mvm->disable_power_off_d3);
542
543 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
544}
545
546static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
547 size_t count, loff_t *ppos)
548{
549 int ret, val;
550
551 if (!iwl_mvm_firmware_running(mvm))
552 return -EIO;
553
554 if (!strncmp("disable_power_off_d0=", buf, 21)) {
555 if (sscanf(buf + 21, "%d", &val) != 1)
556 return -EINVAL;
557 mvm->disable_power_off = val;
558 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
559 if (sscanf(buf + 21, "%d", &val) != 1)
560 return -EINVAL;
561 mvm->disable_power_off_d3 = val;
562 } else {
563 return -EINVAL;
564 }
565
566 mutex_lock(&mvm->mutex);
567 ret = iwl_mvm_power_update_device(mvm);
568 mutex_unlock(&mvm->mutex);
569
570 return ret ?: count;
571}
572
573static
574int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
575 int pos, int bufsz)
576{
577 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
578
579 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
580 BT_MBOX_PRINT(0, LE_PROF1, false);
581 BT_MBOX_PRINT(0, LE_PROF2, false);
582 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
583 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
584 BT_MBOX_PRINT(0, INBAND_S, false);
585 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
586 BT_MBOX_PRINT(0, LE_SCAN, false);
587 BT_MBOX_PRINT(0, LE_ADV, false);
588 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
589 BT_MBOX_PRINT(0, OPEN_CON_1, true);
590
591 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
592
593 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
594 BT_MBOX_PRINT(1, IP_SR, false);
595 BT_MBOX_PRINT(1, LE_MSTR, false);
596 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
597 BT_MBOX_PRINT(1, MSG_TYPE, false);
598 BT_MBOX_PRINT(1, SSN, true);
599
600 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
601
602 BT_MBOX_PRINT(2, SNIFF_ACT, false);
603 BT_MBOX_PRINT(2, PAG, false);
604 BT_MBOX_PRINT(2, INQUIRY, false);
605 BT_MBOX_PRINT(2, CONN, false);
606 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
607 BT_MBOX_PRINT(2, DISC, false);
608 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
609 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
610 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
611 BT_MBOX_PRINT(2, SCO_DURATION, true);
612
613 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
614
615 BT_MBOX_PRINT(3, SCO_STATE, false);
616 BT_MBOX_PRINT(3, SNIFF_STATE, false);
617 BT_MBOX_PRINT(3, A2DP_STATE, false);
618 BT_MBOX_PRINT(3, A2DP_SRC, false);
619 BT_MBOX_PRINT(3, ACL_STATE, false);
620 BT_MBOX_PRINT(3, MSTR_STATE, false);
621 BT_MBOX_PRINT(3, OBX_STATE, false);
622 BT_MBOX_PRINT(3, OPEN_CON_2, false);
623 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
624 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
625 BT_MBOX_PRINT(3, INBAND_P, false);
626 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
627 BT_MBOX_PRINT(3, SSN_2, false);
628 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
629
630 return pos;
631}
632
633static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
634 size_t count, loff_t *ppos)
635{
636 struct iwl_mvm *mvm = file->private_data;
637 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
638 char *buf;
639 int ret, pos = 0, bufsz = sizeof(char) * 1024;
640
641 buf = kmalloc(bufsz, GFP_KERNEL);
642 if (!buf)
643 return -ENOMEM;
644
645 mutex_lock(&mvm->mutex);
646
647 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
648
649 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
650 notif->bt_ci_compliance);
651 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
652 le32_to_cpu(notif->primary_ch_lut));
653 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
654 le32_to_cpu(notif->secondary_ch_lut));
655 pos += scnprintf(buf + pos,
656 bufsz - pos, "bt_activity_grading = %d\n",
657 le32_to_cpu(notif->bt_activity_grading));
658 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
659 notif->rrc_status & 0xF);
660 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
661 notif->ttc_status & 0xF);
662
663 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
664 IWL_MVM_BT_COEX_SYNC2SCO);
665 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
666 IWL_MVM_BT_COEX_MPLUT);
667
668 mutex_unlock(&mvm->mutex);
669
670 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
671 kfree(buf);
672
673 return ret;
674}
675#undef BT_MBOX_PRINT
676
677static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
678 size_t count, loff_t *ppos)
679{
680 struct iwl_mvm *mvm = file->private_data;
681 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
682 char buf[256];
683 int bufsz = sizeof(buf);
684 int pos = 0;
685
686 mutex_lock(&mvm->mutex);
687
688 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
689 pos += scnprintf(buf + pos, bufsz - pos,
690 "\tPrimary Channel Bitmap 0x%016llx\n",
691 le64_to_cpu(cmd->bt_primary_ci));
692 pos += scnprintf(buf + pos, bufsz - pos,
693 "\tSecondary Channel Bitmap 0x%016llx\n",
694 le64_to_cpu(cmd->bt_secondary_ci));
695
696 mutex_unlock(&mvm->mutex);
697
698 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
699}
700
701static ssize_t
702iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
703 size_t count, loff_t *ppos)
704{
705 u32 bt_tx_prio;
706
707 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
708 return -EINVAL;
709 if (bt_tx_prio > 4)
710 return -EINVAL;
711
712 mvm->bt_tx_prio = bt_tx_prio;
713
714 return count;
715}
716
717static ssize_t
718iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
719 size_t count, loff_t *ppos)
720{
721 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
722 [BT_FORCE_ANT_DIS] = "dis",
723 [BT_FORCE_ANT_AUTO] = "auto",
724 [BT_FORCE_ANT_BT] = "bt",
725 [BT_FORCE_ANT_WIFI] = "wifi",
726 };
727 int ret, bt_force_ant_mode;
728
729 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
730 if (ret < 0)
731 return ret;
732
733 bt_force_ant_mode = ret;
734 ret = 0;
735 mutex_lock(&mvm->mutex);
736 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
737 goto out;
738
739 mvm->bt_force_ant_mode = bt_force_ant_mode;
740 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
741 modes_str[mvm->bt_force_ant_mode]);
742
743 if (iwl_mvm_firmware_running(mvm))
744 ret = iwl_mvm_send_bt_init_conf(mvm);
745 else
746 ret = 0;
747
748out:
749 mutex_unlock(&mvm->mutex);
750 return ret ?: count;
751}
752
753static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
754 size_t count, loff_t *ppos)
755{
756 struct iwl_mvm *mvm = file->private_data;
757 char *buff, *pos, *endpos;
758 static const size_t bufsz = 1024;
759 char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
760 int ret;
761
762 buff = kmalloc(bufsz, GFP_KERNEL);
763 if (!buff)
764 return -ENOMEM;
765
766 pos = buff;
767 endpos = pos + bufsz;
768
769 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
770 iwl_drv_get_fwname_pre(mvm->trans, _fw_name_pre));
771 pos += scnprintf(pos, endpos - pos, "FW: %s\n",
772 mvm->fwrt.fw->human_readable);
773 pos += scnprintf(pos, endpos - pos, "Device: %s\n",
774 mvm->fwrt.trans->name);
775 pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
776 mvm->fwrt.dev->bus->name);
777
778 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
779 kfree(buff);
780
781 return ret;
782}
783
784static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file,
785 char __user *user_buf,
786 size_t count, loff_t *ppos)
787{
788 struct iwl_mvm *mvm = file->private_data;
789 struct iwl_mvm_tas_status_resp tas_rsp;
790 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp;
791 static const size_t bufsz = 1024;
792 char *buff, *pos, *endpos;
793 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = {
794 [TAS_DISABLED_DUE_TO_BIOS] =
795 "Due To BIOS",
796 [TAS_DISABLED_DUE_TO_SAR_6DBM] =
797 "Due To SAR Limit Less Than 6 dBm",
798 [TAS_DISABLED_REASON_INVALID] =
799 "N/A",
800 };
801 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = {
802 [TAS_DYNA_INACTIVE] = "INACTIVE",
803 [TAS_DYNA_INACTIVE_MVM_MODE] =
804 "inactive due to mvm mode",
805 [TAS_DYNA_INACTIVE_TRIGGER_MODE] =
806 "inactive due to trigger mode",
807 [TAS_DYNA_INACTIVE_BLOCK_LISTED] =
808 "inactive due to block listed",
809 [TAS_DYNA_INACTIVE_UHB_NON_US] =
810 "inactive due to uhb non US",
811 [TAS_DYNA_ACTIVE] = "ACTIVE",
812 };
813 struct iwl_host_cmd hcmd = {
814 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS),
815 .flags = CMD_WANT_SKB,
816 .len = { 0, },
817 .data = { NULL, },
818 };
819 int ret, i, tmp;
820 bool tas_enabled = false;
821 unsigned long dyn_status;
822
823 if (!iwl_mvm_firmware_running(mvm))
824 return -ENODEV;
825
826 mutex_lock(&mvm->mutex);
827 ret = iwl_mvm_send_cmd(mvm, &hcmd);
828 mutex_unlock(&mvm->mutex);
829 if (ret < 0)
830 return ret;
831
832 buff = kzalloc(bufsz, GFP_KERNEL);
833 if (!buff)
834 return -ENOMEM;
835 pos = buff;
836 endpos = pos + bufsz;
837
838 rsp = (void *)hcmd.resp_pkt->data;
839
840 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n");
841 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
842 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID &&
843 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) {
844 pos += scnprintf(pos, endpos - pos, "\tON for ");
845 switch (rsp->tas_status_mac[i].band) {
846 case TAS_LMAC_BAND_HB:
847 pos += scnprintf(pos, endpos - pos, "HB\n");
848 break;
849 case TAS_LMAC_BAND_LB:
850 pos += scnprintf(pos, endpos - pos, "LB\n");
851 break;
852 case TAS_LMAC_BAND_UHB:
853 pos += scnprintf(pos, endpos - pos, "UHB\n");
854 break;
855 case TAS_LMAC_BAND_INVALID:
856 pos += scnprintf(pos, endpos - pos,
857 "INVALID BAND\n");
858 break;
859 default:
860 pos += scnprintf(pos, endpos - pos,
861 "Unsupported band (%d)\n",
862 rsp->tas_status_mac[i].band);
863 goto out;
864 }
865 tas_enabled = true;
866 }
867 }
868 if (!tas_enabled)
869 pos += scnprintf(pos, endpos - pos, "\tOFF\n");
870
871 pos += scnprintf(pos, endpos - pos, "TAS Report\n");
872 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n",
873 rsp->tas_fw_version);
874 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n",
875 rsp->is_uhb_for_usa_enable ? "True" : "False");
876 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n",
877 le16_to_cpu(rsp->curr_mcc));
878
879 pos += scnprintf(pos, endpos - pos, "Block list entries:");
880 for (i = 0; i < APCI_WTAS_BLACK_LIST_MAX; i++)
881 pos += scnprintf(pos, endpos - pos, " 0x%x",
882 le16_to_cpu(rsp->block_list[i]));
883
884 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n",
885 dmi_get_system_info(DMI_SYS_VENDOR));
886 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n",
887 iwl_mvm_is_vendor_in_approved_list() ? "YES" : "NO");
888 pos += scnprintf(pos, endpos - pos,
889 "\tDo TAS Support Dual Radio?: %s\n",
890 rsp->in_dual_radio ? "TRUE" : "FALSE");
891
892 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
893 if (rsp->tas_status_mac[i].static_status == 0) {
894 pos += scnprintf(pos, endpos - pos,
895 "Static status: disabled\n");
896 pos += scnprintf(pos, endpos - pos,
897 "Static disabled reason: %s (0)\n",
898 tas_dis_reason[0]);
899 goto out;
900 }
901
902 pos += scnprintf(pos, endpos - pos, "TAS status for ");
903 switch (rsp->tas_status_mac[i].band) {
904 case TAS_LMAC_BAND_HB:
905 pos += scnprintf(pos, endpos - pos, "High band\n");
906 break;
907 case TAS_LMAC_BAND_LB:
908 pos += scnprintf(pos, endpos - pos, "Low band\n");
909 break;
910 case TAS_LMAC_BAND_UHB:
911 pos += scnprintf(pos, endpos - pos,
912 "Ultra high band\n");
913 break;
914 case TAS_LMAC_BAND_INVALID:
915 pos += scnprintf(pos, endpos - pos,
916 "INVALID band\n");
917 break;
918 default:
919 pos += scnprintf(pos, endpos - pos,
920 "Unsupported band (%d)\n",
921 rsp->tas_status_mac[i].band);
922 goto out;
923 }
924 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n",
925 rsp->tas_status_mac[i].static_status ?
926 "En" : "Dis");
927 pos += scnprintf(pos, endpos - pos,
928 "\tStatic Disabled Reason: ");
929 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX)
930 pos += scnprintf(pos, endpos - pos, "%s (%d)\n",
931 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason],
932 rsp->tas_status_mac[i].static_dis_reason);
933 else
934 pos += scnprintf(pos, endpos - pos,
935 "unsupported value (%d)\n",
936 rsp->tas_status_mac[i].static_dis_reason);
937
938 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n");
939 dyn_status = (rsp->tas_status_mac[i].dynamic_status);
940 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) {
941 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX)
942 pos += scnprintf(pos, endpos - pos,
943 "\t%s (%d)\n",
944 tas_current_status[tmp], tmp);
945 }
946
947 pos += scnprintf(pos, endpos - pos,
948 "Is near disconnection?: %s\n",
949 rsp->tas_status_mac[i].near_disconnection ?
950 "True" : "False");
951 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit);
952 pos += scnprintf(pos, endpos - pos,
953 "Max. regulatory pwr limit (dBm): %d.%03d\n",
954 tmp / 8, 125 * (tmp % 8));
955 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit);
956 pos += scnprintf(pos, endpos - pos,
957 "SAR limit (dBm): %d.%03d\n",
958 tmp / 8, 125 * (tmp % 8));
959 }
960
961out:
962 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
963 kfree(buff);
964 iwl_free_resp(&hcmd);
965 return ret;
966}
967
968static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
969 char __user *user_buf,
970 size_t count, loff_t *ppos)
971{
972 struct iwl_mvm *mvm = file->private_data;
973 char *buf;
974 size_t bufsz;
975 int pos;
976 ssize_t ret;
977
978 bufsz = mvm->fw->phy_integration_ver_len + 2;
979 buf = kmalloc(bufsz, GFP_KERNEL);
980 if (!buf)
981 return -ENOMEM;
982
983 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
984 mvm->fw->phy_integration_ver);
985
986 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
987
988 kfree(buf);
989 return ret;
990}
991
992#define PRINT_STATS_LE32(_struct, _memb) \
993 pos += scnprintf(buf + pos, bufsz - pos, \
994 fmt_table, #_memb, \
995 le32_to_cpu(_struct->_memb))
996
997static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
998 char __user *user_buf, size_t count,
999 loff_t *ppos)
1000{
1001 struct iwl_mvm *mvm = file->private_data;
1002 static const char *fmt_table = "\t%-30s %10u\n";
1003 static const char *fmt_header = "%-32s\n";
1004 int pos = 0;
1005 char *buf;
1006 int ret;
1007 size_t bufsz;
1008 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1009 WIDE_ID(SYSTEM_GROUP,
1010 SYSTEM_STATISTICS_CMD),
1011 IWL_FW_CMD_VER_UNKNOWN);
1012
1013 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
1014 return -EOPNOTSUPP;
1015
1016 if (iwl_mvm_has_new_rx_stats_api(mvm))
1017 bufsz = ((sizeof(struct mvm_statistics_rx) /
1018 sizeof(__le32)) * 43) + (4 * 33) + 1;
1019 else
1020 /* 43 = size of each data line; 33 = size of each header */
1021 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
1022 sizeof(__le32)) * 43) + (4 * 33) + 1;
1023
1024 buf = kzalloc(bufsz, GFP_KERNEL);
1025 if (!buf)
1026 return -ENOMEM;
1027
1028 mutex_lock(&mvm->mutex);
1029
1030 if (iwl_mvm_firmware_running(mvm))
1031 iwl_mvm_request_statistics(mvm, false);
1032
1033 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
1034 "Statistics_Rx - OFDM");
1035 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
1036 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
1037
1038 PRINT_STATS_LE32(ofdm, ina_cnt);
1039 PRINT_STATS_LE32(ofdm, fina_cnt);
1040 PRINT_STATS_LE32(ofdm, plcp_err);
1041 PRINT_STATS_LE32(ofdm, crc32_err);
1042 PRINT_STATS_LE32(ofdm, overrun_err);
1043 PRINT_STATS_LE32(ofdm, early_overrun_err);
1044 PRINT_STATS_LE32(ofdm, crc32_good);
1045 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
1046 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
1047 PRINT_STATS_LE32(ofdm, sfd_timeout);
1048 PRINT_STATS_LE32(ofdm, fina_timeout);
1049 PRINT_STATS_LE32(ofdm, unresponded_rts);
1050 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
1051 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
1052 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
1053 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
1054 PRINT_STATS_LE32(ofdm, dsp_self_kill);
1055 PRINT_STATS_LE32(ofdm, mh_format_err);
1056 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
1057 PRINT_STATS_LE32(ofdm, reserved);
1058 } else {
1059 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
1060
1061 PRINT_STATS_LE32(ofdm, unresponded_rts);
1062 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
1063 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
1064 PRINT_STATS_LE32(ofdm, dsp_self_kill);
1065 PRINT_STATS_LE32(ofdm, reserved);
1066 }
1067
1068 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
1069 "Statistics_Rx - CCK");
1070 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
1071 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
1072
1073 PRINT_STATS_LE32(cck, ina_cnt);
1074 PRINT_STATS_LE32(cck, fina_cnt);
1075 PRINT_STATS_LE32(cck, plcp_err);
1076 PRINT_STATS_LE32(cck, crc32_err);
1077 PRINT_STATS_LE32(cck, overrun_err);
1078 PRINT_STATS_LE32(cck, early_overrun_err);
1079 PRINT_STATS_LE32(cck, crc32_good);
1080 PRINT_STATS_LE32(cck, false_alarm_cnt);
1081 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
1082 PRINT_STATS_LE32(cck, sfd_timeout);
1083 PRINT_STATS_LE32(cck, fina_timeout);
1084 PRINT_STATS_LE32(cck, unresponded_rts);
1085 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
1086 PRINT_STATS_LE32(cck, sent_ack_cnt);
1087 PRINT_STATS_LE32(cck, sent_cts_cnt);
1088 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
1089 PRINT_STATS_LE32(cck, dsp_self_kill);
1090 PRINT_STATS_LE32(cck, mh_format_err);
1091 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
1092 PRINT_STATS_LE32(cck, reserved);
1093 } else {
1094 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
1095
1096 PRINT_STATS_LE32(cck, unresponded_rts);
1097 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
1098 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
1099 PRINT_STATS_LE32(cck, dsp_self_kill);
1100 PRINT_STATS_LE32(cck, reserved);
1101 }
1102
1103 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
1104 "Statistics_Rx - GENERAL");
1105 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
1106 struct mvm_statistics_rx_non_phy_v3 *general =
1107 &mvm->rx_stats_v3.general;
1108
1109 PRINT_STATS_LE32(general, bogus_cts);
1110 PRINT_STATS_LE32(general, bogus_ack);
1111 PRINT_STATS_LE32(general, non_bssid_frames);
1112 PRINT_STATS_LE32(general, filtered_frames);
1113 PRINT_STATS_LE32(general, non_channel_beacons);
1114 PRINT_STATS_LE32(general, channel_beacons);
1115 PRINT_STATS_LE32(general, num_missed_bcon);
1116 PRINT_STATS_LE32(general, adc_rx_saturation_time);
1117 PRINT_STATS_LE32(general, ina_detection_search_time);
1118 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
1119 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
1120 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
1121 PRINT_STATS_LE32(general, interference_data_flag);
1122 PRINT_STATS_LE32(general, channel_load);
1123 PRINT_STATS_LE32(general, dsp_false_alarms);
1124 PRINT_STATS_LE32(general, beacon_rssi_a);
1125 PRINT_STATS_LE32(general, beacon_rssi_b);
1126 PRINT_STATS_LE32(general, beacon_rssi_c);
1127 PRINT_STATS_LE32(general, beacon_energy_a);
1128 PRINT_STATS_LE32(general, beacon_energy_b);
1129 PRINT_STATS_LE32(general, beacon_energy_c);
1130 PRINT_STATS_LE32(general, num_bt_kills);
1131 PRINT_STATS_LE32(general, mac_id);
1132 PRINT_STATS_LE32(general, directed_data_mpdu);
1133 } else {
1134 struct mvm_statistics_rx_non_phy *general =
1135 &mvm->rx_stats.general;
1136
1137 PRINT_STATS_LE32(general, bogus_cts);
1138 PRINT_STATS_LE32(general, bogus_ack);
1139 PRINT_STATS_LE32(general, non_channel_beacons);
1140 PRINT_STATS_LE32(general, channel_beacons);
1141 PRINT_STATS_LE32(general, num_missed_bcon);
1142 PRINT_STATS_LE32(general, adc_rx_saturation_time);
1143 PRINT_STATS_LE32(general, ina_detection_search_time);
1144 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
1145 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
1146 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
1147 PRINT_STATS_LE32(general, interference_data_flag);
1148 PRINT_STATS_LE32(general, channel_load);
1149 PRINT_STATS_LE32(general, beacon_rssi_a);
1150 PRINT_STATS_LE32(general, beacon_rssi_b);
1151 PRINT_STATS_LE32(general, beacon_rssi_c);
1152 PRINT_STATS_LE32(general, beacon_energy_a);
1153 PRINT_STATS_LE32(general, beacon_energy_b);
1154 PRINT_STATS_LE32(general, beacon_energy_c);
1155 PRINT_STATS_LE32(general, num_bt_kills);
1156 PRINT_STATS_LE32(general, mac_id);
1157 }
1158
1159 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
1160 "Statistics_Rx - HT");
1161 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
1162 struct mvm_statistics_rx_ht_phy_v1 *ht =
1163 &mvm->rx_stats_v3.ofdm_ht;
1164
1165 PRINT_STATS_LE32(ht, plcp_err);
1166 PRINT_STATS_LE32(ht, overrun_err);
1167 PRINT_STATS_LE32(ht, early_overrun_err);
1168 PRINT_STATS_LE32(ht, crc32_good);
1169 PRINT_STATS_LE32(ht, crc32_err);
1170 PRINT_STATS_LE32(ht, mh_format_err);
1171 PRINT_STATS_LE32(ht, agg_crc32_good);
1172 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
1173 PRINT_STATS_LE32(ht, agg_cnt);
1174 PRINT_STATS_LE32(ht, unsupport_mcs);
1175 } else {
1176 struct mvm_statistics_rx_ht_phy *ht =
1177 &mvm->rx_stats.ofdm_ht;
1178
1179 PRINT_STATS_LE32(ht, mh_format_err);
1180 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
1181 PRINT_STATS_LE32(ht, agg_cnt);
1182 PRINT_STATS_LE32(ht, unsupport_mcs);
1183 }
1184
1185 mutex_unlock(&mvm->mutex);
1186
1187 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1188 kfree(buf);
1189
1190 return ret;
1191}
1192#undef PRINT_STAT_LE32
1193
1194static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file,
1195 char __user *user_buf,
1196 size_t count, loff_t *ppos)
1197{
1198 char *buff, *pos, *endpos;
1199 int ret;
1200 size_t bufsz;
1201 int i;
1202 struct iwl_mvm_vif *mvmvif;
1203 struct ieee80211_vif *vif;
1204 struct iwl_mvm *mvm = file->private_data;
1205 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1206 WIDE_ID(SYSTEM_GROUP,
1207 SYSTEM_STATISTICS_CMD),
1208 IWL_FW_CMD_VER_UNKNOWN);
1209
1210 /* in case of a wrong cmd version, allocate buffer only for error msg */
1211 bufsz = (cmd_ver == 1) ? 4096 : 64;
1212
1213 buff = kzalloc(bufsz, GFP_KERNEL);
1214 if (!buff)
1215 return -ENOMEM;
1216
1217 pos = buff;
1218 endpos = pos + bufsz;
1219
1220 if (cmd_ver != 1) {
1221 pos += scnprintf(pos, endpos - pos,
1222 "System stats not supported:%d\n", cmd_ver);
1223 goto send_out;
1224 }
1225
1226 mutex_lock(&mvm->mutex);
1227 if (iwl_mvm_firmware_running(mvm))
1228 iwl_mvm_request_statistics(mvm, false);
1229
1230 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1231 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1232 if (!vif)
1233 continue;
1234
1235 if (vif->type == NL80211_IFTYPE_STATION)
1236 break;
1237 }
1238
1239 if (i == NUM_MAC_INDEX_DRIVER || !vif) {
1240 pos += scnprintf(pos, endpos - pos, "vif is NULL\n");
1241 goto release_send_out;
1242 }
1243
1244 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1245 if (!mvmvif) {
1246 pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n");
1247 goto release_send_out;
1248 }
1249
1250 for_each_mvm_vif_valid_link(mvmvif, i) {
1251 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i];
1252
1253 pos += scnprintf(pos, endpos - pos,
1254 "link_id %d", i);
1255 pos += scnprintf(pos, endpos - pos,
1256 " num_beacons %d",
1257 link_info->beacon_stats.num_beacons);
1258 pos += scnprintf(pos, endpos - pos,
1259 " accu_num_beacons %d",
1260 link_info->beacon_stats.accu_num_beacons);
1261 pos += scnprintf(pos, endpos - pos,
1262 " avg_signal %d\n",
1263 link_info->beacon_stats.avg_signal);
1264 }
1265
1266 pos += scnprintf(pos, endpos - pos,
1267 "radio_stats.rx_time %lld\n",
1268 mvm->radio_stats.rx_time);
1269 pos += scnprintf(pos, endpos - pos,
1270 "radio_stats.tx_time %lld\n",
1271 mvm->radio_stats.tx_time);
1272 pos += scnprintf(pos, endpos - pos,
1273 "accu_radio_stats.rx_time %lld\n",
1274 mvm->accu_radio_stats.rx_time);
1275 pos += scnprintf(pos, endpos - pos,
1276 "accu_radio_stats.tx_time %lld\n",
1277 mvm->accu_radio_stats.tx_time);
1278
1279release_send_out:
1280 mutex_unlock(&mvm->mutex);
1281
1282send_out:
1283 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1284 kfree(buff);
1285
1286 return ret;
1287}
1288
1289static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
1290 char __user *user_buf, size_t count,
1291 loff_t *ppos,
1292 struct iwl_mvm_frame_stats *stats)
1293{
1294 char *buff, *pos, *endpos;
1295 int idx, i;
1296 int ret;
1297 static const size_t bufsz = 1024;
1298
1299 buff = kmalloc(bufsz, GFP_KERNEL);
1300 if (!buff)
1301 return -ENOMEM;
1302
1303 spin_lock_bh(&mvm->drv_stats_lock);
1304
1305 pos = buff;
1306 endpos = pos + bufsz;
1307
1308 pos += scnprintf(pos, endpos - pos,
1309 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
1310 stats->legacy_frames,
1311 stats->ht_frames,
1312 stats->vht_frames);
1313 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
1314 stats->bw_20_frames,
1315 stats->bw_40_frames,
1316 stats->bw_80_frames);
1317 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
1318 stats->ngi_frames,
1319 stats->sgi_frames);
1320 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
1321 stats->siso_frames,
1322 stats->mimo2_frames);
1323 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
1324 stats->fail_frames,
1325 stats->success_frames);
1326 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
1327 stats->agg_frames);
1328 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
1329 stats->ampdu_count);
1330 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
1331 stats->ampdu_count > 0 ?
1332 (stats->agg_frames / stats->ampdu_count) : 0);
1333
1334 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
1335
1336 idx = stats->last_frame_idx - 1;
1337 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
1338 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
1339 if (stats->last_rates[idx] == 0)
1340 continue;
1341 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
1342 (int)(ARRAY_SIZE(stats->last_rates) - i));
1343 pos += rs_pretty_print_rate_v1(pos, endpos - pos,
1344 stats->last_rates[idx]);
1345 if (pos < endpos - 1)
1346 *pos++ = '\n';
1347 }
1348 spin_unlock_bh(&mvm->drv_stats_lock);
1349
1350 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1351 kfree(buff);
1352
1353 return ret;
1354}
1355
1356static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
1357 char __user *user_buf, size_t count,
1358 loff_t *ppos)
1359{
1360 struct iwl_mvm *mvm = file->private_data;
1361
1362 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
1363 &mvm->drv_rx_stats);
1364}
1365
1366static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1367 size_t count, loff_t *ppos)
1368{
1369 int __maybe_unused ret;
1370
1371 if (!iwl_mvm_firmware_running(mvm))
1372 return -EIO;
1373
1374 mutex_lock(&mvm->mutex);
1375
1376 /* allow one more restart that we're provoking here */
1377 if (mvm->fw_restart >= 0)
1378 mvm->fw_restart++;
1379
1380 if (count == 6 && !strcmp(buf, "nolog\n")) {
1381 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1382 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
1383 }
1384
1385 /* take the return value to make compiler happy - it will fail anyway */
1386 ret = iwl_mvm_send_cmd_pdu(mvm,
1387 WIDE_ID(LONG_GROUP, REPLY_ERROR),
1388 0, 0, NULL);
1389
1390 mutex_unlock(&mvm->mutex);
1391
1392 return count;
1393}
1394
1395static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1396 size_t count, loff_t *ppos)
1397{
1398 if (!iwl_mvm_firmware_running(mvm))
1399 return -EIO;
1400
1401 if (count == 6 && !strcmp(buf, "nolog\n"))
1402 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1403
1404 iwl_force_nmi(mvm->trans);
1405
1406 return count;
1407}
1408
1409static ssize_t
1410iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1411 char __user *user_buf,
1412 size_t count, loff_t *ppos)
1413{
1414 struct iwl_mvm *mvm = file->private_data;
1415 int pos = 0;
1416 char buf[32];
1417 const size_t bufsz = sizeof(buf);
1418
1419 /* print which antennas were set for the scan command by the user */
1420 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1421 if (mvm->scan_rx_ant & ANT_A)
1422 pos += scnprintf(buf + pos, bufsz - pos, "A");
1423 if (mvm->scan_rx_ant & ANT_B)
1424 pos += scnprintf(buf + pos, bufsz - pos, "B");
1425 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant);
1426
1427 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1428}
1429
1430static ssize_t
1431iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1432 size_t count, loff_t *ppos)
1433{
1434 u8 scan_rx_ant;
1435
1436 if (!iwl_mvm_firmware_running(mvm))
1437 return -EIO;
1438
1439 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1440 return -EINVAL;
1441 if (scan_rx_ant > ANT_ABC)
1442 return -EINVAL;
1443 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1444 return -EINVAL;
1445
1446 if (mvm->scan_rx_ant != scan_rx_ant) {
1447 mvm->scan_rx_ant = scan_rx_ant;
1448 if (fw_has_capa(&mvm->fw->ucode_capa,
1449 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1450 iwl_mvm_config_scan(mvm);
1451 }
1452
1453 return count;
1454}
1455
1456static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1457 char *buf, size_t count,
1458 loff_t *ppos)
1459{
1460 struct iwl_rss_config_cmd cmd = {
1461 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1462 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1463 IWL_RSS_HASH_TYPE_IPV4_UDP |
1464 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1465 IWL_RSS_HASH_TYPE_IPV6_TCP |
1466 IWL_RSS_HASH_TYPE_IPV6_UDP |
1467 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1468 };
1469 int ret, i, num_repeats, nbytes = count / 2;
1470
1471 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1472 if (ret)
1473 return ret;
1474
1475 /*
1476 * The input is the redirection table, partial or full.
1477 * Repeat the pattern if needed.
1478 * For example, input of 01020F will be repeated 42 times,
1479 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1480 * queues 3 - 14).
1481 */
1482 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1483 for (i = 1; i < num_repeats; i++)
1484 memcpy(&cmd.indirection_table[i * nbytes],
1485 cmd.indirection_table, nbytes);
1486 /* handle cut in the middle pattern for the last places */
1487 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1488 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1489
1490 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1491
1492 mutex_lock(&mvm->mutex);
1493 if (iwl_mvm_firmware_running(mvm))
1494 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1495 sizeof(cmd), &cmd);
1496 else
1497 ret = 0;
1498 mutex_unlock(&mvm->mutex);
1499
1500 return ret ?: count;
1501}
1502
1503static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1504 char *buf, size_t count,
1505 loff_t *ppos)
1506{
1507 struct iwl_op_mode *opmode = container_of((void *)mvm,
1508 struct iwl_op_mode,
1509 op_mode_specific);
1510 struct iwl_rx_cmd_buffer rxb = {
1511 ._rx_page_order = 0,
1512 .truesize = 0, /* not used */
1513 ._offset = 0,
1514 };
1515 struct iwl_rx_packet *pkt;
1516 int bin_len = count / 2;
1517 int ret = -EINVAL;
1518
1519 if (!iwl_mvm_firmware_running(mvm))
1520 return -EIO;
1521
1522 /* supporting only MQ RX */
1523 if (!mvm->trans->trans_cfg->mq_rx_supported)
1524 return -EOPNOTSUPP;
1525
1526 rxb._page = alloc_pages(GFP_ATOMIC, 0);
1527 if (!rxb._page)
1528 return -ENOMEM;
1529 pkt = rxb_addr(&rxb);
1530
1531 ret = hex2bin(page_address(rxb._page), buf, bin_len);
1532 if (ret)
1533 goto out;
1534
1535 /* avoid invalid memory access and malformed packet */
1536 if (bin_len < sizeof(*pkt) ||
1537 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
1538 goto out;
1539
1540 local_bh_disable();
1541 iwl_mvm_rx_mq(opmode, NULL, &rxb);
1542 local_bh_enable();
1543 ret = 0;
1544
1545out:
1546 iwl_free_rxb(&rxb);
1547
1548 return ret ?: count;
1549}
1550
1551static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1552{
1553 struct ieee80211_vif *vif;
1554 struct iwl_mvm_vif *mvmvif;
1555 struct sk_buff *beacon;
1556 struct ieee80211_tx_info *info;
1557 struct iwl_mac_beacon_cmd beacon_cmd = {};
1558 unsigned int link_id;
1559 u8 rate;
1560 int i;
1561
1562 len /= 2;
1563
1564 /* Element len should be represented by u8 */
1565 if (len >= U8_MAX)
1566 return -EINVAL;
1567
1568 if (!iwl_mvm_firmware_running(mvm))
1569 return -EIO;
1570
1571 if (!iwl_mvm_has_new_tx_api(mvm) &&
1572 !fw_has_api(&mvm->fw->ucode_capa,
1573 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1574 return -EINVAL;
1575
1576 mutex_lock(&mvm->mutex);
1577
1578 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1579 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1580 if (!vif)
1581 continue;
1582
1583 if (vif->type == NL80211_IFTYPE_AP)
1584 break;
1585 }
1586
1587 if (i == NUM_MAC_INDEX_DRIVER || !vif)
1588 goto out_err;
1589
1590 mvm->hw->extra_beacon_tailroom = len;
1591
1592 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0);
1593 if (!beacon)
1594 goto out_err;
1595
1596 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1597 dev_kfree_skb(beacon);
1598 goto out_err;
1599 }
1600
1601 mvm->beacon_inject_active = true;
1602
1603 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1604 info = IEEE80211_SKB_CB(beacon);
1605 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif);
1606
1607 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1608 beacon_cmd.flags =
1609 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw,
1610 rate));
1611 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1612 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12)
1613 beacon_cmd.link_id =
1614 cpu_to_le32(mvmvif->link[link_id]->fw_link_id);
1615 else
1616 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id);
1617
1618 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1619 &beacon_cmd.tim_size,
1620 beacon->data, beacon->len);
1621
1622 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1623 sizeof(beacon_cmd));
1624 }
1625 mutex_unlock(&mvm->mutex);
1626
1627 dev_kfree_skb(beacon);
1628
1629 return 0;
1630
1631out_err:
1632 mutex_unlock(&mvm->mutex);
1633 return -EINVAL;
1634}
1635
1636static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1637 char *buf, size_t count,
1638 loff_t *ppos)
1639{
1640 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1641
1642 mvm->hw->extra_beacon_tailroom = 0;
1643 return ret ?: count;
1644}
1645
1646static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1647 char *buf,
1648 size_t count,
1649 loff_t *ppos)
1650{
1651 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1652
1653 mvm->hw->extra_beacon_tailroom = 0;
1654 mvm->beacon_inject_active = false;
1655 return ret ?: count;
1656}
1657
1658static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1659 char __user *user_buf,
1660 size_t count, loff_t *ppos)
1661{
1662 struct iwl_mvm *mvm = file->private_data;
1663 int conf;
1664 char buf[8];
1665 const size_t bufsz = sizeof(buf);
1666 int pos = 0;
1667
1668 mutex_lock(&mvm->mutex);
1669 conf = mvm->fwrt.dump.conf;
1670 mutex_unlock(&mvm->mutex);
1671
1672 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1673
1674 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1675}
1676
1677static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1678 char *buf, size_t count,
1679 loff_t *ppos)
1680{
1681 unsigned int conf_id;
1682 int ret;
1683
1684 if (!iwl_mvm_firmware_running(mvm))
1685 return -EIO;
1686
1687 ret = kstrtouint(buf, 0, &conf_id);
1688 if (ret)
1689 return ret;
1690
1691 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1692 return -EINVAL;
1693
1694 mutex_lock(&mvm->mutex);
1695 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1696 mutex_unlock(&mvm->mutex);
1697
1698 return ret ?: count;
1699}
1700
1701static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1702 char *buf, size_t count,
1703 loff_t *ppos)
1704{
1705 if (count == 0)
1706 return 0;
1707
1708 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1709 NULL);
1710
1711 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1712 (count - 1), NULL);
1713
1714 return count;
1715}
1716
1717static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm,
1718 char *buf, size_t count,
1719 loff_t *ppos)
1720{
1721 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1722 return -EOPNOTSUPP;
1723
1724 mutex_lock(&mvm->mutex);
1725 iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt);
1726 mutex_unlock(&mvm->mutex);
1727
1728 return count;
1729}
1730
1731static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
1732 char *buf, size_t count,
1733 loff_t *ppos)
1734{
1735 u32 timepoint;
1736
1737 if (kstrtou32(buf, 0, &timepoint))
1738 return -EINVAL;
1739
1740 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
1741 timepoint >= IWL_FW_INI_TIME_POINT_NUM)
1742 return -EINVAL;
1743
1744 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
1745
1746 return count;
1747}
1748
1749#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1750 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1751#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1752 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1753#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1754 debugfs_create_file(alias, mode, parent, mvm, \
1755 &iwl_dbgfs_##name##_ops); \
1756 } while (0)
1757#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1758 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1759
1760static ssize_t
1761_iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *,
1762 struct iwl_mvm_sta *,
1763 struct iwl_mvm *,
1764 struct iwl_mvm_link_sta *,
1765 char *,
1766 size_t, loff_t *),
1767 struct file *file,
1768 char *buf, size_t buf_size, loff_t *ppos)
1769{
1770 struct ieee80211_link_sta *link_sta = file->private_data;
1771 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1772 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1773 struct iwl_mvm_link_sta *mvm_link_sta;
1774 ssize_t ret;
1775
1776 mutex_lock(&mvm->mutex);
1777
1778 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1779 lockdep_is_held(&mvm->mutex));
1780 if (WARN_ON(!mvm_link_sta)) {
1781 mutex_unlock(&mvm->mutex);
1782 return -ENODEV;
1783 }
1784
1785 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos);
1786
1787 mutex_unlock(&mvm->mutex);
1788
1789 return ret;
1790}
1791
1792static ssize_t
1793_iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *,
1794 struct iwl_mvm_sta *,
1795 struct iwl_mvm *,
1796 struct iwl_mvm_link_sta *,
1797 char __user *,
1798 size_t, loff_t *),
1799 struct file *file,
1800 char __user *user_buf, size_t count, loff_t *ppos)
1801{
1802 struct ieee80211_link_sta *link_sta = file->private_data;
1803 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1804 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1805 struct iwl_mvm_link_sta *mvm_link_sta;
1806 ssize_t ret;
1807
1808 mutex_lock(&mvm->mutex);
1809
1810 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1811 lockdep_is_held(&mvm->mutex));
1812 if (WARN_ON(!mvm_link_sta)) {
1813 mutex_unlock(&mvm->mutex);
1814 return -ENODEV;
1815 }
1816
1817 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos);
1818
1819 mutex_unlock(&mvm->mutex);
1820
1821 return ret;
1822}
1823
1824#define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \
1825static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \
1826 const char __user *user_buf, \
1827 size_t count, loff_t *ppos) \
1828{ \
1829 char buf[buflen] = {}; \
1830 size_t buf_size = min(count, sizeof(buf) - 1); \
1831 \
1832 if (copy_from_user(buf, user_buf, buf_size)) \
1833 return -EFAULT; \
1834 \
1835 return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \
1836 file, \
1837 buf, buf_size, ppos); \
1838} \
1839
1840#define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1841static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \
1842 char __user *user_buf, \
1843 size_t count, loff_t *ppos) \
1844{ \
1845 return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \
1846 file, \
1847 user_buf, count, ppos); \
1848} \
1849
1850#define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1851MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1852static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1853 .write = _iwl_dbgfs_link_sta_##name##_write, \
1854 .open = simple_open, \
1855 .llseek = generic_file_llseek, \
1856}
1857
1858#define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \
1859MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1860static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1861 .read = _iwl_dbgfs_link_sta_##name##_read, \
1862 .open = simple_open, \
1863 .llseek = generic_file_llseek, \
1864}
1865
1866#define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1867MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1868MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1869static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1870 .read = _iwl_dbgfs_link_sta_##name##_read, \
1871 .write = _iwl_dbgfs_link_sta_##name##_write, \
1872 .open = simple_open, \
1873 .llseek = generic_file_llseek, \
1874}
1875
1876#define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \
1877 debugfs_create_file(alias, mode, parent, link_sta, \
1878 &iwl_dbgfs_link_sta_##name##_ops)
1879#define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \
1880 MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode)
1881
1882static ssize_t
1883iwl_dbgfs_prph_reg_read(struct file *file,
1884 char __user *user_buf,
1885 size_t count, loff_t *ppos)
1886{
1887 struct iwl_mvm *mvm = file->private_data;
1888 int pos = 0;
1889 char buf[32];
1890 const size_t bufsz = sizeof(buf);
1891
1892 if (!mvm->dbgfs_prph_reg_addr)
1893 return -EINVAL;
1894
1895 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1896 mvm->dbgfs_prph_reg_addr,
1897 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1898
1899 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1900}
1901
1902static ssize_t
1903iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1904 size_t count, loff_t *ppos)
1905{
1906 u8 args;
1907 u32 value;
1908
1909 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1910 /* if we only want to set the reg address - nothing more to do */
1911 if (args == 1)
1912 goto out;
1913
1914 /* otherwise, make sure we have both address and value */
1915 if (args != 2)
1916 return -EINVAL;
1917
1918 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1919
1920out:
1921 return count;
1922}
1923
1924static ssize_t
1925iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1926 size_t count, loff_t *ppos)
1927{
1928 int ret;
1929
1930 if (!iwl_mvm_firmware_running(mvm))
1931 return -EIO;
1932
1933 mutex_lock(&mvm->mutex);
1934 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1935 mutex_unlock(&mvm->mutex);
1936
1937 return ret ?: count;
1938}
1939
1940struct iwl_mvm_sniffer_apply {
1941 struct iwl_mvm *mvm;
1942 u8 *bssid;
1943 u16 aid;
1944};
1945
1946static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1947 struct iwl_rx_packet *pkt, void *data)
1948{
1949 struct iwl_mvm_sniffer_apply *apply = data;
1950
1951 apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1952 memcpy(apply->mvm->cur_bssid, apply->bssid,
1953 sizeof(apply->mvm->cur_bssid));
1954
1955 return true;
1956}
1957
1958static ssize_t
1959iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1960 size_t count, loff_t *ppos)
1961{
1962 struct iwl_notification_wait wait;
1963 struct iwl_he_monitor_cmd he_mon_cmd = {};
1964 struct iwl_mvm_sniffer_apply apply = {
1965 .mvm = mvm,
1966 };
1967 u16 wait_cmds[] = {
1968 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1969 };
1970 u32 aid;
1971 int ret;
1972
1973 if (!iwl_mvm_firmware_running(mvm))
1974 return -EIO;
1975
1976 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1977 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1978 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1979 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1980 if (ret != 7)
1981 return -EINVAL;
1982
1983 he_mon_cmd.aid = cpu_to_le16(aid);
1984
1985 apply.aid = aid;
1986 apply.bssid = (void *)he_mon_cmd.bssid;
1987
1988 mutex_lock(&mvm->mutex);
1989
1990 /*
1991 * Use the notification waiter to get our function triggered
1992 * in sequence with other RX. This ensures that frames we get
1993 * on the RX queue _before_ the new configuration is applied
1994 * still have mvm->cur_aid pointing to the old AID, and that
1995 * frames on the RX queue _after_ the firmware processed the
1996 * new configuration (and sent the response, synchronously)
1997 * get mvm->cur_aid correctly set to the new AID.
1998 */
1999 iwl_init_notification_wait(&mvm->notif_wait, &wait,
2000 wait_cmds, ARRAY_SIZE(wait_cmds),
2001 iwl_mvm_sniffer_apply, &apply);
2002
2003 ret = iwl_mvm_send_cmd_pdu(mvm,
2004 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
2005 0,
2006 sizeof(he_mon_cmd), &he_mon_cmd);
2007
2008 /* no need to really wait, we already did anyway */
2009 iwl_remove_notification(&mvm->notif_wait, &wait);
2010
2011 mutex_unlock(&mvm->mutex);
2012
2013 return ret ?: count;
2014}
2015
2016static ssize_t
2017iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
2018 size_t count, loff_t *ppos)
2019{
2020 struct iwl_mvm *mvm = file->private_data;
2021 u8 buf[32];
2022 int len;
2023
2024 len = scnprintf(buf, sizeof(buf),
2025 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
2026 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
2027 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
2028 mvm->cur_bssid[4], mvm->cur_bssid[5]);
2029
2030 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2031}
2032
2033static ssize_t
2034iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
2035 size_t count, loff_t *ppos)
2036{
2037 struct iwl_mvm *mvm = file->private_data;
2038 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
2039 unsigned int pos = 0;
2040 size_t bufsz = sizeof(buf);
2041 int i;
2042
2043 mutex_lock(&mvm->mutex);
2044
2045 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
2046 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
2047 mvm->uapsd_noagg_bssids[i].addr);
2048
2049 mutex_unlock(&mvm->mutex);
2050
2051 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2052}
2053
2054static ssize_t
2055iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
2056 char *buf, size_t count, loff_t *ppos)
2057{
2058 int ret;
2059 struct iwl_ltr_config_cmd ltr_config = {0};
2060
2061 if (!iwl_mvm_firmware_running(mvm))
2062 return -EIO;
2063
2064 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
2065 <r_config.flags,
2066 <r_config.static_long,
2067 <r_config.static_short,
2068 <r_config.ltr_cfg_values[0],
2069 <r_config.ltr_cfg_values[1],
2070 <r_config.ltr_cfg_values[2],
2071 <r_config.ltr_cfg_values[3]) != 7) {
2072 return -EINVAL;
2073 }
2074
2075 mutex_lock(&mvm->mutex);
2076 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
2077 <r_config);
2078 mutex_unlock(&mvm->mutex);
2079
2080 if (ret)
2081 IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
2082
2083 return ret ?: count;
2084}
2085
2086static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
2087 size_t count, loff_t *ppos)
2088{
2089 int ret = 0;
2090 u16 op_id;
2091
2092 if (kstrtou16(buf, 10, &op_id))
2093 return -EINVAL;
2094
2095 /* value zero triggers re-sending the default table to the device */
2096 if (!op_id) {
2097 mutex_lock(&mvm->mutex);
2098 ret = iwl_rfi_send_config_cmd(mvm, NULL);
2099 mutex_unlock(&mvm->mutex);
2100 } else {
2101 ret = -EOPNOTSUPP; /* in the future a new table will be added */
2102 }
2103
2104 return ret ?: count;
2105}
2106
2107/* The size computation is as follows:
2108 * each number needs at most 3 characters, number of rows is the size of
2109 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards
2110 * needs 6 characters for numbers and 5 for the punctuation around.
2111 */
2112#define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
2113 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
2114
2115static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
2116 char __user *user_buf,
2117 size_t count, loff_t *ppos)
2118{
2119 struct iwl_mvm *mvm = file->private_data;
2120 struct iwl_rfi_freq_table_resp_cmd *resp;
2121 u32 status;
2122 char buf[IWL_RFI_BUF_SIZE];
2123 int i, j, pos = 0;
2124
2125 resp = iwl_rfi_get_freq_table(mvm);
2126 if (IS_ERR(resp))
2127 return PTR_ERR(resp);
2128
2129 status = le32_to_cpu(resp->status);
2130 if (status != RFI_FREQ_TABLE_OK) {
2131 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
2132 goto out;
2133 }
2134
2135 for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
2136 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
2137 resp->table[i].freq);
2138
2139 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
2140 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
2141 "(%d, %d) ",
2142 resp->table[i].channels[j],
2143 resp->table[i].bands[j]);
2144 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
2145 }
2146
2147out:
2148 kfree(resp);
2149 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2150}
2151
2152MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
2153
2154/* Device wide debugfs entries */
2155MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
2156MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
2157MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8);
2158MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
2159MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
2160MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
2161MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
2162MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
2163MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
2164MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
2165MVM_DEBUGFS_READ_FILE_OPS(stations);
2166MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data);
2167MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
2168MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
2169MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
2170MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
2171MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
2172MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats);
2173MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
2174MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
2175MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
2176MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
2177MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
2178MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
2179MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
2180MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
2181MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
2182MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
2183MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64);
2184MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
2185MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
2186 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
2187MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
2188MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
2189MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
2190
2191MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
2192
2193#ifdef CONFIG_ACPI
2194MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
2195MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable);
2196#endif
2197
2198MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16);
2199
2200MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
2201
2202MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
2203MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
2204
2205static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
2206 size_t count, loff_t *ppos)
2207{
2208 struct iwl_mvm *mvm = file->private_data;
2209 struct iwl_dbg_mem_access_cmd cmd = {};
2210 struct iwl_dbg_mem_access_rsp *rsp;
2211 struct iwl_host_cmd hcmd = {
2212 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2213 .data = { &cmd, },
2214 .len = { sizeof(cmd) },
2215 };
2216 size_t delta;
2217 ssize_t ret, len;
2218
2219 if (!iwl_mvm_firmware_running(mvm))
2220 return -EIO;
2221
2222 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2223 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
2224
2225 /* Take care of alignment of both the position and the length */
2226 delta = *ppos & 0x3;
2227 cmd.addr = cpu_to_le32(*ppos - delta);
2228 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
2229 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
2230
2231 mutex_lock(&mvm->mutex);
2232 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2233 mutex_unlock(&mvm->mutex);
2234
2235 if (ret < 0)
2236 return ret;
2237
2238 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2239 ret = -EIO;
2240 goto out;
2241 }
2242
2243 rsp = (void *)hcmd.resp_pkt->data;
2244 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
2245 ret = -ENXIO;
2246 goto out;
2247 }
2248
2249 len = min((size_t)le32_to_cpu(rsp->len) << 2,
2250 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
2251 len = min(len - delta, count);
2252 if (len < 0) {
2253 ret = -EFAULT;
2254 goto out;
2255 }
2256
2257 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
2258 *ppos += ret;
2259
2260out:
2261 iwl_free_resp(&hcmd);
2262 return ret;
2263}
2264
2265static ssize_t iwl_dbgfs_mem_write(struct file *file,
2266 const char __user *user_buf, size_t count,
2267 loff_t *ppos)
2268{
2269 struct iwl_mvm *mvm = file->private_data;
2270 struct iwl_dbg_mem_access_cmd *cmd;
2271 struct iwl_dbg_mem_access_rsp *rsp;
2272 struct iwl_host_cmd hcmd = {};
2273 size_t cmd_size;
2274 size_t data_size;
2275 u32 op, len;
2276 ssize_t ret;
2277
2278 if (!iwl_mvm_firmware_running(mvm))
2279 return -EIO;
2280
2281 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2282
2283 if (*ppos & 0x3 || count < 4) {
2284 op = DEBUG_MEM_OP_WRITE_BYTES;
2285 len = min(count, (size_t)(4 - (*ppos & 0x3)));
2286 data_size = len;
2287 } else {
2288 op = DEBUG_MEM_OP_WRITE;
2289 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
2290 data_size = len << 2;
2291 }
2292
2293 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
2294 cmd = kzalloc(cmd_size, GFP_KERNEL);
2295 if (!cmd)
2296 return -ENOMEM;
2297
2298 cmd->op = cpu_to_le32(op);
2299 cmd->len = cpu_to_le32(len);
2300 cmd->addr = cpu_to_le32(*ppos);
2301 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
2302 kfree(cmd);
2303 return -EFAULT;
2304 }
2305
2306 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2307 hcmd.data[0] = (void *)cmd;
2308 hcmd.len[0] = cmd_size;
2309
2310 mutex_lock(&mvm->mutex);
2311 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2312 mutex_unlock(&mvm->mutex);
2313
2314 kfree(cmd);
2315
2316 if (ret < 0)
2317 return ret;
2318
2319 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2320 ret = -EIO;
2321 goto out;
2322 }
2323
2324 rsp = (void *)hcmd.resp_pkt->data;
2325 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
2326 ret = -ENXIO;
2327 goto out;
2328 }
2329
2330 ret = data_size;
2331 *ppos += ret;
2332
2333out:
2334 iwl_free_resp(&hcmd);
2335 return ret;
2336}
2337
2338static const struct file_operations iwl_dbgfs_mem_ops = {
2339 .read = iwl_dbgfs_mem_read,
2340 .write = iwl_dbgfs_mem_write,
2341 .open = simple_open,
2342 .llseek = default_llseek,
2343};
2344
2345void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw,
2346 struct ieee80211_vif *vif,
2347 struct ieee80211_link_sta *link_sta,
2348 struct dentry *dir)
2349{
2350 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2351
2352 if (iwl_mvm_has_tlc_offload(mvm)) {
2353 MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400);
2354 }
2355
2356 MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600);
2357}
2358
2359void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
2360{
2361 struct dentry *bcast_dir __maybe_unused;
2362
2363 spin_lock_init(&mvm->drv_stats_lock);
2364
2365 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
2366 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
2367 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
2368 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
2369 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
2370 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
2371 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
2372 MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200);
2373 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
2374 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
2375 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400);
2376 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400);
2377 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
2378 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
2379 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
2380 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
2381 MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400);
2382 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
2383 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
2384 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
2385 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
2386 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
2387 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
2388 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
2389 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
2390 MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200);
2391 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
2392 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
2393 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
2394 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
2395 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
2396 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
2397 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
2398
2399 if (mvm->fw->phy_integration_ver)
2400 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
2401 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400);
2402#ifdef CONFIG_ACPI
2403 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
2404 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400);
2405#endif
2406 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
2407
2408 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
2409 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
2410
2411 debugfs_create_bool("enable_scan_iteration_notif", 0600,
2412 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
2413 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
2414 &mvm->drop_bcn_ap_mode);
2415
2416 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
2417
2418#ifdef CONFIG_PM_SLEEP
2419 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
2420 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
2421 &mvm->d3_wake_sysassert);
2422 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
2423 &mvm->last_netdetect_scans);
2424#endif
2425
2426 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
2427 &mvm->ps_disabled);
2428 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
2429 &mvm->nvm_hw_blob);
2430 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
2431 &mvm->nvm_sw_blob);
2432 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
2433 &mvm->nvm_calib_blob);
2434 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
2435 &mvm->nvm_prod_blob);
2436 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
2437 &mvm->nvm_phy_sku_blob);
2438 debugfs_create_blob("nvm_reg", S_IRUSR,
2439 mvm->debugfs_dir, &mvm->nvm_reg_blob);
2440
2441 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
2442 &iwl_dbgfs_mem_ops);
2443
2444 /*
2445 * Create a symlink with mac80211. It will be removed when mac80211
2446 * exists (before the opmode exists which removes the target.)
2447 */
2448 if (!IS_ERR(mvm->debugfs_dir)) {
2449 char buf[100];
2450
2451 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
2452 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
2453 buf);
2454 }
2455}
1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66#include <linux/vmalloc.h>
67#include <linux/ieee80211.h>
68
69#include "mvm.h"
70#include "fw-dbg.h"
71#include "sta.h"
72#include "iwl-io.h"
73#include "debugfs.h"
74#include "iwl-fw-error-dump.h"
75
76static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
77 char __user *user_buf,
78 size_t count, loff_t *ppos)
79{
80 struct iwl_mvm *mvm = file->private_data;
81 char buf[16];
82 int pos, budget;
83
84 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
85 return -EIO;
86
87 mutex_lock(&mvm->mutex);
88 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
89 mutex_unlock(&mvm->mutex);
90
91 if (budget < 0)
92 return budget;
93
94 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
95
96 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
97}
98
99static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
100 size_t count, loff_t *ppos)
101{
102 int ret;
103
104 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
105 return -EIO;
106
107 mutex_lock(&mvm->mutex);
108 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
109 mutex_unlock(&mvm->mutex);
110
111 return ret ?: count;
112}
113
114static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
115 size_t count, loff_t *ppos)
116{
117 int ret;
118 u32 scd_q_msk;
119
120 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
121 return -EIO;
122
123 if (sscanf(buf, "%x", &scd_q_msk) != 1)
124 return -EINVAL;
125
126 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
127
128 mutex_lock(&mvm->mutex);
129 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
130 mutex_unlock(&mvm->mutex);
131
132 return ret;
133}
134
135static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
136 size_t count, loff_t *ppos)
137{
138 struct iwl_mvm_sta *mvmsta;
139 int sta_id, drain, ret;
140
141 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
142 return -EIO;
143
144 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
145 return -EINVAL;
146 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
147 return -EINVAL;
148 if (drain < 0 || drain > 1)
149 return -EINVAL;
150
151 mutex_lock(&mvm->mutex);
152
153 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
154
155 if (!mvmsta)
156 ret = -ENOENT;
157 else
158 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
159
160 mutex_unlock(&mvm->mutex);
161
162 return ret;
163}
164
165static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
166 size_t count, loff_t *ppos)
167{
168 struct iwl_mvm *mvm = file->private_data;
169 const struct fw_img *img;
170 unsigned int ofs, len;
171 size_t ret;
172 u8 *ptr;
173
174 if (!mvm->ucode_loaded)
175 return -EINVAL;
176
177 /* default is to dump the entire data segment */
178 img = &mvm->fw->img[mvm->cur_ucode];
179 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
180 len = img->sec[IWL_UCODE_SECTION_DATA].len;
181
182 if (mvm->dbgfs_sram_len) {
183 ofs = mvm->dbgfs_sram_offset;
184 len = mvm->dbgfs_sram_len;
185 }
186
187 ptr = kzalloc(len, GFP_KERNEL);
188 if (!ptr)
189 return -ENOMEM;
190
191 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
192
193 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
194
195 kfree(ptr);
196
197 return ret;
198}
199
200static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
201 size_t count, loff_t *ppos)
202{
203 const struct fw_img *img;
204 u32 offset, len;
205 u32 img_offset, img_len;
206
207 if (!mvm->ucode_loaded)
208 return -EINVAL;
209
210 img = &mvm->fw->img[mvm->cur_ucode];
211 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
212 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
213
214 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
215 if ((offset & 0x3) || (len & 0x3))
216 return -EINVAL;
217
218 if (offset + len > img_offset + img_len)
219 return -EINVAL;
220
221 mvm->dbgfs_sram_offset = offset;
222 mvm->dbgfs_sram_len = len;
223 } else {
224 mvm->dbgfs_sram_offset = 0;
225 mvm->dbgfs_sram_len = 0;
226 }
227
228 return count;
229}
230
231static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
232 char __user *user_buf,
233 size_t count, loff_t *ppos)
234{
235 struct iwl_mvm *mvm = file->private_data;
236 char buf[16];
237 int pos;
238
239 if (!mvm->temperature_test)
240 pos = scnprintf(buf , sizeof(buf), "disabled\n");
241 else
242 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
243
244 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
245}
246
247/*
248 * Set NIC Temperature
249 * Cause the driver to ignore the actual NIC temperature reported by the FW
250 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
251 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
252 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
253 */
254static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
255 char *buf, size_t count,
256 loff_t *ppos)
257{
258 int temperature;
259
260 if (!mvm->ucode_loaded && !mvm->temperature_test)
261 return -EIO;
262
263 if (kstrtoint(buf, 10, &temperature))
264 return -EINVAL;
265 /* not a legal temperature */
266 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
267 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
268 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
269 return -EINVAL;
270
271 mutex_lock(&mvm->mutex);
272 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
273 if (!mvm->temperature_test)
274 goto out;
275
276 mvm->temperature_test = false;
277 /* Since we can't read the temp while awake, just set
278 * it to zero until we get the next RX stats from the
279 * firmware.
280 */
281 mvm->temperature = 0;
282 } else {
283 mvm->temperature_test = true;
284 mvm->temperature = temperature;
285 }
286 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
287 mvm->temperature_test ? "En" : "Dis" ,
288 mvm->temperature);
289 /* handle the temperature change */
290 iwl_mvm_tt_handler(mvm);
291
292out:
293 mutex_unlock(&mvm->mutex);
294
295 return count;
296}
297
298static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
299 char __user *user_buf,
300 size_t count, loff_t *ppos)
301{
302 struct iwl_mvm *mvm = file->private_data;
303 char buf[16];
304 int pos, ret;
305 s32 temp;
306
307 if (!mvm->ucode_loaded)
308 return -EIO;
309
310 mutex_lock(&mvm->mutex);
311 ret = iwl_mvm_get_temp(mvm, &temp);
312 mutex_unlock(&mvm->mutex);
313
314 if (ret)
315 return -EIO;
316
317 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
318
319 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
320}
321
322static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
323 size_t count, loff_t *ppos)
324{
325 struct iwl_mvm *mvm = file->private_data;
326 struct ieee80211_sta *sta;
327 char buf[400];
328 int i, pos = 0, bufsz = sizeof(buf);
329
330 mutex_lock(&mvm->mutex);
331
332 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
333 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
334 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
335 lockdep_is_held(&mvm->mutex));
336 if (!sta)
337 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
338 else if (IS_ERR(sta))
339 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
340 PTR_ERR(sta));
341 else
342 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
343 sta->addr);
344 }
345
346 mutex_unlock(&mvm->mutex);
347
348 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
349}
350
351static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
352 char __user *user_buf,
353 size_t count, loff_t *ppos)
354{
355 struct iwl_mvm *mvm = file->private_data;
356 char buf[64];
357 int bufsz = sizeof(buf);
358 int pos = 0;
359
360 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
361 mvm->disable_power_off);
362 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
363 mvm->disable_power_off_d3);
364
365 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
366}
367
368static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
369 size_t count, loff_t *ppos)
370{
371 int ret, val;
372
373 if (!mvm->ucode_loaded)
374 return -EIO;
375
376 if (!strncmp("disable_power_off_d0=", buf, 21)) {
377 if (sscanf(buf + 21, "%d", &val) != 1)
378 return -EINVAL;
379 mvm->disable_power_off = val;
380 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
381 if (sscanf(buf + 21, "%d", &val) != 1)
382 return -EINVAL;
383 mvm->disable_power_off_d3 = val;
384 } else {
385 return -EINVAL;
386 }
387
388 mutex_lock(&mvm->mutex);
389 ret = iwl_mvm_power_update_device(mvm);
390 mutex_unlock(&mvm->mutex);
391
392 return ret ?: count;
393}
394
395#define BT_MBOX_MSG(_notif, _num, _field) \
396 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
397 >> BT_MBOX##_num##_##_field##_POS)
398
399
400#define BT_MBOX_PRINT(_num, _field, _end) \
401 pos += scnprintf(buf + pos, bufsz - pos, \
402 "\t%s: %d%s", \
403 #_field, \
404 BT_MBOX_MSG(notif, _num, _field), \
405 true ? "\n" : ", ");
406
407static
408int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
409 int pos, int bufsz)
410{
411 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
412
413 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
414 BT_MBOX_PRINT(0, LE_PROF1, false);
415 BT_MBOX_PRINT(0, LE_PROF2, false);
416 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
417 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
418 BT_MBOX_PRINT(0, INBAND_S, false);
419 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
420 BT_MBOX_PRINT(0, LE_SCAN, false);
421 BT_MBOX_PRINT(0, LE_ADV, false);
422 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
423 BT_MBOX_PRINT(0, OPEN_CON_1, true);
424
425 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
426
427 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
428 BT_MBOX_PRINT(1, IP_SR, false);
429 BT_MBOX_PRINT(1, LE_MSTR, false);
430 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
431 BT_MBOX_PRINT(1, MSG_TYPE, false);
432 BT_MBOX_PRINT(1, SSN, true);
433
434 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
435
436 BT_MBOX_PRINT(2, SNIFF_ACT, false);
437 BT_MBOX_PRINT(2, PAG, false);
438 BT_MBOX_PRINT(2, INQUIRY, false);
439 BT_MBOX_PRINT(2, CONN, false);
440 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
441 BT_MBOX_PRINT(2, DISC, false);
442 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
443 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
444 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
445 BT_MBOX_PRINT(2, SCO_DURATION, true);
446
447 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
448
449 BT_MBOX_PRINT(3, SCO_STATE, false);
450 BT_MBOX_PRINT(3, SNIFF_STATE, false);
451 BT_MBOX_PRINT(3, A2DP_STATE, false);
452 BT_MBOX_PRINT(3, ACL_STATE, false);
453 BT_MBOX_PRINT(3, MSTR_STATE, false);
454 BT_MBOX_PRINT(3, OBX_STATE, false);
455 BT_MBOX_PRINT(3, OPEN_CON_2, false);
456 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
457 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
458 BT_MBOX_PRINT(3, INBAND_P, false);
459 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
460 BT_MBOX_PRINT(3, SSN_2, false);
461 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
462
463 return pos;
464}
465
466static
467int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
468 char *buf, int pos, int bufsz)
469{
470 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
471
472 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
473 BT_MBOX_PRINT(0, LE_PROF1, false);
474 BT_MBOX_PRINT(0, LE_PROF2, false);
475 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
476 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
477 BT_MBOX_PRINT(0, INBAND_S, false);
478 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
479 BT_MBOX_PRINT(0, LE_SCAN, false);
480 BT_MBOX_PRINT(0, LE_ADV, false);
481 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
482 BT_MBOX_PRINT(0, OPEN_CON_1, true);
483
484 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
485
486 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
487 BT_MBOX_PRINT(1, IP_SR, false);
488 BT_MBOX_PRINT(1, LE_MSTR, false);
489 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
490 BT_MBOX_PRINT(1, MSG_TYPE, false);
491 BT_MBOX_PRINT(1, SSN, true);
492
493 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
494
495 BT_MBOX_PRINT(2, SNIFF_ACT, false);
496 BT_MBOX_PRINT(2, PAG, false);
497 BT_MBOX_PRINT(2, INQUIRY, false);
498 BT_MBOX_PRINT(2, CONN, false);
499 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
500 BT_MBOX_PRINT(2, DISC, false);
501 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
502 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
503 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
504 BT_MBOX_PRINT(2, SCO_DURATION, true);
505
506 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
507
508 BT_MBOX_PRINT(3, SCO_STATE, false);
509 BT_MBOX_PRINT(3, SNIFF_STATE, false);
510 BT_MBOX_PRINT(3, A2DP_STATE, false);
511 BT_MBOX_PRINT(3, ACL_STATE, false);
512 BT_MBOX_PRINT(3, MSTR_STATE, false);
513 BT_MBOX_PRINT(3, OBX_STATE, false);
514 BT_MBOX_PRINT(3, OPEN_CON_2, false);
515 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
516 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
517 BT_MBOX_PRINT(3, INBAND_P, false);
518 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
519 BT_MBOX_PRINT(3, SSN_2, false);
520 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
521
522 return pos;
523}
524
525static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
526 size_t count, loff_t *ppos)
527{
528 struct iwl_mvm *mvm = file->private_data;
529 char *buf;
530 int ret, pos = 0, bufsz = sizeof(char) * 1024;
531
532 buf = kmalloc(bufsz, GFP_KERNEL);
533 if (!buf)
534 return -ENOMEM;
535
536 mutex_lock(&mvm->mutex);
537
538 if (!fw_has_api(&mvm->fw->ucode_capa,
539 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
540 struct iwl_bt_coex_profile_notif_old *notif =
541 &mvm->last_bt_notif_old;
542
543 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
544
545 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
546 notif->bt_ci_compliance);
547 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
548 le32_to_cpu(notif->primary_ch_lut));
549 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
550 le32_to_cpu(notif->secondary_ch_lut));
551 pos += scnprintf(buf+pos,
552 bufsz-pos, "bt_activity_grading = %d\n",
553 le32_to_cpu(notif->bt_activity_grading));
554 pos += scnprintf(buf+pos, bufsz-pos,
555 "antenna isolation = %d CORUN LUT index = %d\n",
556 mvm->last_ant_isol, mvm->last_corun_lut);
557 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
558 notif->rrc_enabled);
559 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
560 notif->ttc_enabled);
561 } else {
562 struct iwl_bt_coex_profile_notif *notif =
563 &mvm->last_bt_notif;
564
565 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
566
567 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
568 notif->bt_ci_compliance);
569 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
570 le32_to_cpu(notif->primary_ch_lut));
571 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
572 le32_to_cpu(notif->secondary_ch_lut));
573 pos += scnprintf(buf+pos,
574 bufsz-pos, "bt_activity_grading = %d\n",
575 le32_to_cpu(notif->bt_activity_grading));
576 pos += scnprintf(buf+pos, bufsz-pos,
577 "antenna isolation = %d CORUN LUT index = %d\n",
578 mvm->last_ant_isol, mvm->last_corun_lut);
579 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
580 (notif->ttc_rrc_status >> 4) & 0xF);
581 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
582 notif->ttc_rrc_status & 0xF);
583 }
584
585 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
586 IWL_MVM_BT_COEX_SYNC2SCO);
587 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
588 IWL_MVM_BT_COEX_MPLUT);
589 pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n",
590 IWL_MVM_BT_COEX_CORUNNING);
591
592 mutex_unlock(&mvm->mutex);
593
594 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
595 kfree(buf);
596
597 return ret;
598}
599#undef BT_MBOX_PRINT
600
601static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
602 size_t count, loff_t *ppos)
603{
604 struct iwl_mvm *mvm = file->private_data;
605 char buf[256];
606 int bufsz = sizeof(buf);
607 int pos = 0;
608
609 mutex_lock(&mvm->mutex);
610
611 if (!fw_has_api(&mvm->fw->ucode_capa,
612 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
613 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
614
615 pos += scnprintf(buf+pos, bufsz-pos,
616 "Channel inhibition CMD\n");
617 pos += scnprintf(buf+pos, bufsz-pos,
618 "\tPrimary Channel Bitmap 0x%016llx\n",
619 le64_to_cpu(cmd->bt_primary_ci));
620 pos += scnprintf(buf+pos, bufsz-pos,
621 "\tSecondary Channel Bitmap 0x%016llx\n",
622 le64_to_cpu(cmd->bt_secondary_ci));
623
624 pos += scnprintf(buf+pos, bufsz-pos,
625 "BT Configuration CMD - 0=default, 1=never, 2=always\n");
626 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill msk idx %d\n",
627 mvm->bt_ack_kill_msk[0]);
628 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill msk idx %d\n",
629 mvm->bt_cts_kill_msk[0]);
630
631 } else {
632 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
633
634 pos += scnprintf(buf+pos, bufsz-pos,
635 "Channel inhibition CMD\n");
636 pos += scnprintf(buf+pos, bufsz-pos,
637 "\tPrimary Channel Bitmap 0x%016llx\n",
638 le64_to_cpu(cmd->bt_primary_ci));
639 pos += scnprintf(buf+pos, bufsz-pos,
640 "\tSecondary Channel Bitmap 0x%016llx\n",
641 le64_to_cpu(cmd->bt_secondary_ci));
642 }
643
644 mutex_unlock(&mvm->mutex);
645
646 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
647}
648
649static ssize_t
650iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
651 size_t count, loff_t *ppos)
652{
653 u32 bt_tx_prio;
654
655 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
656 return -EINVAL;
657 if (bt_tx_prio > 4)
658 return -EINVAL;
659
660 mvm->bt_tx_prio = bt_tx_prio;
661
662 return count;
663}
664
665static ssize_t
666iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
667 size_t count, loff_t *ppos)
668{
669 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
670 [BT_FORCE_ANT_DIS] = "dis",
671 [BT_FORCE_ANT_AUTO] = "auto",
672 [BT_FORCE_ANT_BT] = "bt",
673 [BT_FORCE_ANT_WIFI] = "wifi",
674 };
675 int ret, bt_force_ant_mode;
676
677 for (bt_force_ant_mode = 0;
678 bt_force_ant_mode < ARRAY_SIZE(modes_str);
679 bt_force_ant_mode++) {
680 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
681 break;
682 }
683
684 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
685 return -EINVAL;
686
687 ret = 0;
688 mutex_lock(&mvm->mutex);
689 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
690 goto out;
691
692 mvm->bt_force_ant_mode = bt_force_ant_mode;
693 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
694 modes_str[mvm->bt_force_ant_mode]);
695 ret = iwl_send_bt_init_conf(mvm);
696
697out:
698 mutex_unlock(&mvm->mutex);
699 return ret ?: count;
700}
701
702#define PRINT_STATS_LE32(_struct, _memb) \
703 pos += scnprintf(buf + pos, bufsz - pos, \
704 fmt_table, #_memb, \
705 le32_to_cpu(_struct->_memb))
706
707static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
708 char __user *user_buf, size_t count,
709 loff_t *ppos)
710{
711 struct iwl_mvm *mvm = file->private_data;
712 static const char *fmt_table = "\t%-30s %10u\n";
713 static const char *fmt_header = "%-32s\n";
714 int pos = 0;
715 char *buf;
716 int ret;
717 /* 43 is the size of each data line, 33 is the size of each header */
718 size_t bufsz =
719 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
720 (4 * 33) + 1;
721
722 struct mvm_statistics_rx_phy *ofdm;
723 struct mvm_statistics_rx_phy *cck;
724 struct mvm_statistics_rx_non_phy *general;
725 struct mvm_statistics_rx_ht_phy *ht;
726
727 buf = kzalloc(bufsz, GFP_KERNEL);
728 if (!buf)
729 return -ENOMEM;
730
731 mutex_lock(&mvm->mutex);
732
733 ofdm = &mvm->rx_stats.ofdm;
734 cck = &mvm->rx_stats.cck;
735 general = &mvm->rx_stats.general;
736 ht = &mvm->rx_stats.ofdm_ht;
737
738 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
739 "Statistics_Rx - OFDM");
740 PRINT_STATS_LE32(ofdm, ina_cnt);
741 PRINT_STATS_LE32(ofdm, fina_cnt);
742 PRINT_STATS_LE32(ofdm, plcp_err);
743 PRINT_STATS_LE32(ofdm, crc32_err);
744 PRINT_STATS_LE32(ofdm, overrun_err);
745 PRINT_STATS_LE32(ofdm, early_overrun_err);
746 PRINT_STATS_LE32(ofdm, crc32_good);
747 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
748 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
749 PRINT_STATS_LE32(ofdm, sfd_timeout);
750 PRINT_STATS_LE32(ofdm, fina_timeout);
751 PRINT_STATS_LE32(ofdm, unresponded_rts);
752 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
753 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
754 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
755 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
756 PRINT_STATS_LE32(ofdm, dsp_self_kill);
757 PRINT_STATS_LE32(ofdm, mh_format_err);
758 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
759 PRINT_STATS_LE32(ofdm, reserved);
760
761 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
762 "Statistics_Rx - CCK");
763 PRINT_STATS_LE32(cck, ina_cnt);
764 PRINT_STATS_LE32(cck, fina_cnt);
765 PRINT_STATS_LE32(cck, plcp_err);
766 PRINT_STATS_LE32(cck, crc32_err);
767 PRINT_STATS_LE32(cck, overrun_err);
768 PRINT_STATS_LE32(cck, early_overrun_err);
769 PRINT_STATS_LE32(cck, crc32_good);
770 PRINT_STATS_LE32(cck, false_alarm_cnt);
771 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
772 PRINT_STATS_LE32(cck, sfd_timeout);
773 PRINT_STATS_LE32(cck, fina_timeout);
774 PRINT_STATS_LE32(cck, unresponded_rts);
775 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
776 PRINT_STATS_LE32(cck, sent_ack_cnt);
777 PRINT_STATS_LE32(cck, sent_cts_cnt);
778 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
779 PRINT_STATS_LE32(cck, dsp_self_kill);
780 PRINT_STATS_LE32(cck, mh_format_err);
781 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
782 PRINT_STATS_LE32(cck, reserved);
783
784 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
785 "Statistics_Rx - GENERAL");
786 PRINT_STATS_LE32(general, bogus_cts);
787 PRINT_STATS_LE32(general, bogus_ack);
788 PRINT_STATS_LE32(general, non_bssid_frames);
789 PRINT_STATS_LE32(general, filtered_frames);
790 PRINT_STATS_LE32(general, non_channel_beacons);
791 PRINT_STATS_LE32(general, channel_beacons);
792 PRINT_STATS_LE32(general, num_missed_bcon);
793 PRINT_STATS_LE32(general, adc_rx_saturation_time);
794 PRINT_STATS_LE32(general, ina_detection_search_time);
795 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
796 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
797 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
798 PRINT_STATS_LE32(general, interference_data_flag);
799 PRINT_STATS_LE32(general, channel_load);
800 PRINT_STATS_LE32(general, dsp_false_alarms);
801 PRINT_STATS_LE32(general, beacon_rssi_a);
802 PRINT_STATS_LE32(general, beacon_rssi_b);
803 PRINT_STATS_LE32(general, beacon_rssi_c);
804 PRINT_STATS_LE32(general, beacon_energy_a);
805 PRINT_STATS_LE32(general, beacon_energy_b);
806 PRINT_STATS_LE32(general, beacon_energy_c);
807 PRINT_STATS_LE32(general, num_bt_kills);
808 PRINT_STATS_LE32(general, mac_id);
809 PRINT_STATS_LE32(general, directed_data_mpdu);
810
811 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
812 "Statistics_Rx - HT");
813 PRINT_STATS_LE32(ht, plcp_err);
814 PRINT_STATS_LE32(ht, overrun_err);
815 PRINT_STATS_LE32(ht, early_overrun_err);
816 PRINT_STATS_LE32(ht, crc32_good);
817 PRINT_STATS_LE32(ht, crc32_err);
818 PRINT_STATS_LE32(ht, mh_format_err);
819 PRINT_STATS_LE32(ht, agg_crc32_good);
820 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
821 PRINT_STATS_LE32(ht, agg_cnt);
822 PRINT_STATS_LE32(ht, unsupport_mcs);
823
824 mutex_unlock(&mvm->mutex);
825
826 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
827 kfree(buf);
828
829 return ret;
830}
831#undef PRINT_STAT_LE32
832
833static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
834 char __user *user_buf, size_t count,
835 loff_t *ppos,
836 struct iwl_mvm_frame_stats *stats)
837{
838 char *buff, *pos, *endpos;
839 int idx, i;
840 int ret;
841 static const size_t bufsz = 1024;
842
843 buff = kmalloc(bufsz, GFP_KERNEL);
844 if (!buff)
845 return -ENOMEM;
846
847 spin_lock_bh(&mvm->drv_stats_lock);
848
849 pos = buff;
850 endpos = pos + bufsz;
851
852 pos += scnprintf(pos, endpos - pos,
853 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
854 stats->legacy_frames,
855 stats->ht_frames,
856 stats->vht_frames);
857 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
858 stats->bw_20_frames,
859 stats->bw_40_frames,
860 stats->bw_80_frames);
861 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
862 stats->ngi_frames,
863 stats->sgi_frames);
864 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
865 stats->siso_frames,
866 stats->mimo2_frames);
867 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
868 stats->fail_frames,
869 stats->success_frames);
870 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
871 stats->agg_frames);
872 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
873 stats->ampdu_count);
874 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
875 stats->ampdu_count > 0 ?
876 (stats->agg_frames / stats->ampdu_count) : 0);
877
878 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
879
880 idx = stats->last_frame_idx - 1;
881 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
882 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
883 if (stats->last_rates[idx] == 0)
884 continue;
885 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
886 (int)(ARRAY_SIZE(stats->last_rates) - i));
887 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
888 }
889 spin_unlock_bh(&mvm->drv_stats_lock);
890
891 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
892 kfree(buff);
893
894 return ret;
895}
896
897static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
898 char __user *user_buf, size_t count,
899 loff_t *ppos)
900{
901 struct iwl_mvm *mvm = file->private_data;
902
903 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
904 &mvm->drv_rx_stats);
905}
906
907static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
908 size_t count, loff_t *ppos)
909{
910 int ret;
911
912 mutex_lock(&mvm->mutex);
913
914 /* allow one more restart that we're provoking here */
915 if (mvm->restart_fw >= 0)
916 mvm->restart_fw++;
917
918 /* take the return value to make compiler happy - it will fail anyway */
919 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
920
921 mutex_unlock(&mvm->mutex);
922
923 return count;
924}
925
926static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
927 size_t count, loff_t *ppos)
928{
929 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
930 if (ret)
931 return ret;
932
933 iwl_force_nmi(mvm->trans);
934
935 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
936
937 return count;
938}
939
940static ssize_t
941iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
942 char __user *user_buf,
943 size_t count, loff_t *ppos)
944{
945 struct iwl_mvm *mvm = file->private_data;
946 int pos = 0;
947 char buf[32];
948 const size_t bufsz = sizeof(buf);
949
950 /* print which antennas were set for the scan command by the user */
951 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
952 if (mvm->scan_rx_ant & ANT_A)
953 pos += scnprintf(buf + pos, bufsz - pos, "A");
954 if (mvm->scan_rx_ant & ANT_B)
955 pos += scnprintf(buf + pos, bufsz - pos, "B");
956 if (mvm->scan_rx_ant & ANT_C)
957 pos += scnprintf(buf + pos, bufsz - pos, "C");
958 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
959
960 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
961}
962
963static ssize_t
964iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
965 size_t count, loff_t *ppos)
966{
967 u8 scan_rx_ant;
968
969 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
970 return -EINVAL;
971 if (scan_rx_ant > ANT_ABC)
972 return -EINVAL;
973 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
974 return -EINVAL;
975
976 if (mvm->scan_rx_ant != scan_rx_ant) {
977 mvm->scan_rx_ant = scan_rx_ant;
978 if (fw_has_capa(&mvm->fw->ucode_capa,
979 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
980 iwl_mvm_config_scan(mvm);
981 }
982
983 return count;
984}
985
986static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
987 char *buf, size_t count,
988 loff_t *ppos)
989{
990 struct iwl_rss_config_cmd cmd = {
991 .flags = cpu_to_le32(IWL_RSS_ENABLE),
992 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
993 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
994 IWL_RSS_HASH_TYPE_IPV6_TCP |
995 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
996 };
997 int ret, i, num_repeats, nbytes = count / 2;
998
999 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1000 if (ret)
1001 return ret;
1002
1003 /*
1004 * The input is the redirection table, partial or full.
1005 * Repeat the pattern if needed.
1006 * For example, input of 01020F will be repeated 42 times,
1007 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1008 * queues 3 - 14).
1009 */
1010 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1011 for (i = 1; i < num_repeats; i++)
1012 memcpy(&cmd.indirection_table[i * nbytes],
1013 cmd.indirection_table, nbytes);
1014 /* handle cut in the middle pattern for the last places */
1015 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1016 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1017
1018 memcpy(cmd.secret_key, mvm->secret_key, sizeof(cmd.secret_key));
1019
1020 mutex_lock(&mvm->mutex);
1021 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
1022 mutex_unlock(&mvm->mutex);
1023
1024 return ret ?: count;
1025}
1026
1027static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1028 char __user *user_buf,
1029 size_t count, loff_t *ppos)
1030{
1031 struct iwl_mvm *mvm = file->private_data;
1032 int conf;
1033 char buf[8];
1034 const size_t bufsz = sizeof(buf);
1035 int pos = 0;
1036
1037 mutex_lock(&mvm->mutex);
1038 conf = mvm->fw_dbg_conf;
1039 mutex_unlock(&mvm->mutex);
1040
1041 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1042
1043 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1044}
1045
1046/*
1047 * Enable / Disable continuous recording.
1048 * Cause the FW to start continuous recording, by sending the relevant hcmd.
1049 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING.
1050 * Disable: for 0 as input, DISABLE_CONT_RECORDING.
1051 */
1052static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm,
1053 char *buf, size_t count,
1054 loff_t *ppos)
1055{
1056 struct iwl_trans *trans = mvm->trans;
1057 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv;
1058 struct iwl_continuous_record_cmd cont_rec = {};
1059 int ret, rec_mode;
1060
1061 if (!dest)
1062 return -EOPNOTSUPP;
1063
1064 if (dest->monitor_mode != SMEM_MODE ||
1065 trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
1066 return -EOPNOTSUPP;
1067
1068 ret = kstrtoint(buf, 0, &rec_mode);
1069 if (ret)
1070 return ret;
1071
1072 cont_rec.record_mode.enable_recording = rec_mode ?
1073 cpu_to_le16(ENABLE_CONT_RECORDING) :
1074 cpu_to_le16(DISABLE_CONT_RECORDING);
1075
1076 mutex_lock(&mvm->mutex);
1077 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0,
1078 sizeof(cont_rec), &cont_rec);
1079 mutex_unlock(&mvm->mutex);
1080
1081 return ret ?: count;
1082}
1083
1084static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1085 char *buf, size_t count,
1086 loff_t *ppos)
1087{
1088 unsigned int conf_id;
1089 int ret;
1090
1091 ret = kstrtouint(buf, 0, &conf_id);
1092 if (ret)
1093 return ret;
1094
1095 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1096 return -EINVAL;
1097
1098 mutex_lock(&mvm->mutex);
1099 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
1100 mutex_unlock(&mvm->mutex);
1101
1102 return ret ?: count;
1103}
1104
1105static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1106 char *buf, size_t count,
1107 loff_t *ppos)
1108{
1109 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1110
1111 if (ret)
1112 return ret;
1113
1114 iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf,
1115 (count - 1), NULL);
1116
1117 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1118
1119 return count;
1120}
1121
1122static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
1123 char *buf, size_t count,
1124 loff_t *ppos)
1125{
1126 unsigned int max_amsdu_len;
1127 int ret;
1128
1129 ret = kstrtouint(buf, 0, &max_amsdu_len);
1130
1131 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
1132 return -EINVAL;
1133 mvm->max_amsdu_len = max_amsdu_len;
1134
1135 return count;
1136}
1137
1138#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1139#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1140static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1141 char __user *user_buf,
1142 size_t count, loff_t *ppos)
1143{
1144 struct iwl_mvm *mvm = file->private_data;
1145 struct iwl_bcast_filter_cmd cmd;
1146 const struct iwl_fw_bcast_filter *filter;
1147 char *buf;
1148 int bufsz = 1024;
1149 int i, j, pos = 0;
1150 ssize_t ret;
1151
1152 buf = kzalloc(bufsz, GFP_KERNEL);
1153 if (!buf)
1154 return -ENOMEM;
1155
1156 mutex_lock(&mvm->mutex);
1157 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1158 ADD_TEXT("None\n");
1159 mutex_unlock(&mvm->mutex);
1160 goto out;
1161 }
1162 mutex_unlock(&mvm->mutex);
1163
1164 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1165 filter = &cmd.filters[i];
1166
1167 ADD_TEXT("Filter [%d]:\n", i);
1168 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1169 ADD_TEXT("\tFrame Type: %s\n",
1170 filter->frame_type ? "IPv4" : "Generic");
1171
1172 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1173 const struct iwl_fw_bcast_filter_attr *attr;
1174
1175 attr = &filter->attrs[j];
1176 if (!attr->mask)
1177 break;
1178
1179 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1180 j, attr->offset,
1181 attr->offset_type ? "IP End" :
1182 "Payload Start",
1183 be32_to_cpu(attr->mask),
1184 be32_to_cpu(attr->val),
1185 le16_to_cpu(attr->reserved1));
1186 }
1187 }
1188out:
1189 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1190 kfree(buf);
1191 return ret;
1192}
1193
1194static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1195 size_t count, loff_t *ppos)
1196{
1197 int pos, next_pos;
1198 struct iwl_fw_bcast_filter filter = {};
1199 struct iwl_bcast_filter_cmd cmd;
1200 u32 filter_id, attr_id, mask, value;
1201 int err = 0;
1202
1203 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1204 &filter.frame_type, &pos) != 3)
1205 return -EINVAL;
1206
1207 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1208 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1209 return -EINVAL;
1210
1211 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1212 attr_id++) {
1213 struct iwl_fw_bcast_filter_attr *attr =
1214 &filter.attrs[attr_id];
1215
1216 if (pos >= count)
1217 break;
1218
1219 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1220 &attr->offset, &attr->offset_type,
1221 &mask, &value, &next_pos) != 4)
1222 return -EINVAL;
1223
1224 attr->mask = cpu_to_be32(mask);
1225 attr->val = cpu_to_be32(value);
1226 if (mask)
1227 filter.num_attrs++;
1228
1229 pos += next_pos;
1230 }
1231
1232 mutex_lock(&mvm->mutex);
1233 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1234 &filter, sizeof(filter));
1235
1236 /* send updated bcast filtering configuration */
1237 if (mvm->dbgfs_bcast_filtering.override &&
1238 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1239 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1240 sizeof(cmd), &cmd);
1241 mutex_unlock(&mvm->mutex);
1242
1243 return err ?: count;
1244}
1245
1246static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1247 char __user *user_buf,
1248 size_t count, loff_t *ppos)
1249{
1250 struct iwl_mvm *mvm = file->private_data;
1251 struct iwl_bcast_filter_cmd cmd;
1252 char *buf;
1253 int bufsz = 1024;
1254 int i, pos = 0;
1255 ssize_t ret;
1256
1257 buf = kzalloc(bufsz, GFP_KERNEL);
1258 if (!buf)
1259 return -ENOMEM;
1260
1261 mutex_lock(&mvm->mutex);
1262 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1263 ADD_TEXT("None\n");
1264 mutex_unlock(&mvm->mutex);
1265 goto out;
1266 }
1267 mutex_unlock(&mvm->mutex);
1268
1269 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1270 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1271
1272 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1273 i, mac->default_discard, mac->attached_filters);
1274 }
1275out:
1276 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1277 kfree(buf);
1278 return ret;
1279}
1280
1281static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1282 char *buf, size_t count,
1283 loff_t *ppos)
1284{
1285 struct iwl_bcast_filter_cmd cmd;
1286 struct iwl_fw_bcast_mac mac = {};
1287 u32 mac_id, attached_filters;
1288 int err = 0;
1289
1290 if (!mvm->bcast_filters)
1291 return -ENOENT;
1292
1293 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1294 &attached_filters) != 3)
1295 return -EINVAL;
1296
1297 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1298 mac.default_discard > 1 ||
1299 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1300 return -EINVAL;
1301
1302 mac.attached_filters = cpu_to_le16(attached_filters);
1303
1304 mutex_lock(&mvm->mutex);
1305 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1306 &mac, sizeof(mac));
1307
1308 /* send updated bcast filtering configuration */
1309 if (mvm->dbgfs_bcast_filtering.override &&
1310 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1311 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1312 sizeof(cmd), &cmd);
1313 mutex_unlock(&mvm->mutex);
1314
1315 return err ?: count;
1316}
1317#endif
1318
1319#ifdef CONFIG_PM_SLEEP
1320static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1321 size_t count, loff_t *ppos)
1322{
1323 int store;
1324
1325 if (sscanf(buf, "%d", &store) != 1)
1326 return -EINVAL;
1327
1328 mvm->store_d3_resume_sram = store;
1329
1330 return count;
1331}
1332
1333static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1334 size_t count, loff_t *ppos)
1335{
1336 struct iwl_mvm *mvm = file->private_data;
1337 const struct fw_img *img;
1338 int ofs, len, pos = 0;
1339 size_t bufsz, ret;
1340 char *buf;
1341 u8 *ptr = mvm->d3_resume_sram;
1342
1343 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1344 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1345
1346 bufsz = len * 4 + 256;
1347 buf = kzalloc(bufsz, GFP_KERNEL);
1348 if (!buf)
1349 return -ENOMEM;
1350
1351 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1352 mvm->store_d3_resume_sram ? "en" : "dis");
1353
1354 if (ptr) {
1355 for (ofs = 0; ofs < len; ofs += 16) {
1356 pos += scnprintf(buf + pos, bufsz - pos,
1357 "0x%.4x %16ph\n", ofs, ptr + ofs);
1358 }
1359 } else {
1360 pos += scnprintf(buf + pos, bufsz - pos,
1361 "(no data captured)\n");
1362 }
1363
1364 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1365
1366 kfree(buf);
1367
1368 return ret;
1369}
1370#endif
1371
1372#define PRINT_MVM_REF(ref) do { \
1373 if (mvm->refs[ref]) \
1374 pos += scnprintf(buf + pos, bufsz - pos, \
1375 "\t(0x%lx): %d %s\n", \
1376 BIT(ref), mvm->refs[ref], #ref); \
1377} while (0)
1378
1379static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1380 char __user *user_buf,
1381 size_t count, loff_t *ppos)
1382{
1383 struct iwl_mvm *mvm = file->private_data;
1384 int i, pos = 0;
1385 char buf[256];
1386 const size_t bufsz = sizeof(buf);
1387 u32 refs = 0;
1388
1389 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1390 if (mvm->refs[i])
1391 refs |= BIT(i);
1392
1393 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1394 refs);
1395
1396 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1397 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1398 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1399 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1400 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1401 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1402 PRINT_MVM_REF(IWL_MVM_REF_USER);
1403 PRINT_MVM_REF(IWL_MVM_REF_TX);
1404 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1405 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1406 PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1407 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1408 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1409 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1410 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1411 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1412 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1413 PRINT_MVM_REF(IWL_MVM_REF_NMI);
1414 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1415 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1416 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1417 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1418 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1419
1420 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1421}
1422
1423static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1424 size_t count, loff_t *ppos)
1425{
1426 unsigned long value;
1427 int ret;
1428 bool taken;
1429
1430 ret = kstrtoul(buf, 10, &value);
1431 if (ret < 0)
1432 return ret;
1433
1434 mutex_lock(&mvm->mutex);
1435
1436 taken = mvm->refs[IWL_MVM_REF_USER];
1437 if (value == 1 && !taken)
1438 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1439 else if (value == 0 && taken)
1440 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1441 else
1442 ret = -EINVAL;
1443
1444 mutex_unlock(&mvm->mutex);
1445
1446 if (ret < 0)
1447 return ret;
1448 return count;
1449}
1450
1451#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1452 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1453#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1454 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1455#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1456 if (!debugfs_create_file(alias, mode, parent, mvm, \
1457 &iwl_dbgfs_##name##_ops)) \
1458 goto err; \
1459 } while (0)
1460#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1461 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1462
1463static ssize_t
1464iwl_dbgfs_prph_reg_read(struct file *file,
1465 char __user *user_buf,
1466 size_t count, loff_t *ppos)
1467{
1468 struct iwl_mvm *mvm = file->private_data;
1469 int pos = 0;
1470 char buf[32];
1471 const size_t bufsz = sizeof(buf);
1472 int ret;
1473
1474 if (!mvm->dbgfs_prph_reg_addr)
1475 return -EINVAL;
1476
1477 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1478 if (ret)
1479 return ret;
1480
1481 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1482 mvm->dbgfs_prph_reg_addr,
1483 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1484
1485 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1486
1487 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1488}
1489
1490static ssize_t
1491iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1492 size_t count, loff_t *ppos)
1493{
1494 u8 args;
1495 u32 value;
1496 int ret;
1497
1498 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1499 /* if we only want to set the reg address - nothing more to do */
1500 if (args == 1)
1501 goto out;
1502
1503 /* otherwise, make sure we have both address and value */
1504 if (args != 2)
1505 return -EINVAL;
1506
1507 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1508 if (ret)
1509 return ret;
1510
1511 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1512
1513 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1514out:
1515 return count;
1516}
1517
1518static ssize_t
1519iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1520 size_t count, loff_t *ppos)
1521{
1522 int ret;
1523
1524 mutex_lock(&mvm->mutex);
1525 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1526 mutex_unlock(&mvm->mutex);
1527
1528 return ret ?: count;
1529}
1530
1531MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1532
1533/* Device wide debugfs entries */
1534MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1535MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1536MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1537MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1538MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1539MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1540MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1541MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1542MVM_DEBUGFS_READ_FILE_OPS(stations);
1543MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1544MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1545MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1546MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1547MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1548MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1549MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1550MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1551MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1552MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1553MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1554MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1555MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1556MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8);
1557MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8);
1558MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1559 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1560
1561#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1562MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1563MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1564#endif
1565
1566#ifdef CONFIG_PM_SLEEP
1567MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1568#endif
1569
1570int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1571{
1572 struct dentry *bcast_dir __maybe_unused;
1573 char buf[100];
1574
1575 spin_lock_init(&mvm->drv_stats_lock);
1576
1577 mvm->debugfs_dir = dbgfs_dir;
1578
1579 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1580 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1581 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1582 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1583 S_IWUSR | S_IRUSR);
1584 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1585 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR);
1586 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR);
1587 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1588 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1589 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1590 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1591 S_IRUSR | S_IWUSR);
1592 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1593 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1594 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1595 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1596 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1597 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1598 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1599 S_IWUSR | S_IRUSR);
1600 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1601 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1602 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1603 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1604 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR);
1605 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1606 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
1607 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR);
1608 if (!debugfs_create_bool("enable_scan_iteration_notif",
1609 S_IRUSR | S_IWUSR,
1610 mvm->debugfs_dir,
1611 &mvm->scan_iter_notif_enabled))
1612 goto err;
1613 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR,
1614 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
1615 goto err;
1616
1617#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1618 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1619 bcast_dir = debugfs_create_dir("bcast_filtering",
1620 mvm->debugfs_dir);
1621 if (!bcast_dir)
1622 goto err;
1623
1624 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1625 bcast_dir,
1626 &mvm->dbgfs_bcast_filtering.override))
1627 goto err;
1628
1629 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1630 bcast_dir, S_IWUSR | S_IRUSR);
1631 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1632 bcast_dir, S_IWUSR | S_IRUSR);
1633 }
1634#endif
1635
1636#ifdef CONFIG_PM_SLEEP
1637 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1638 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1639 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1640 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1641 goto err;
1642 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1643 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1644 goto err;
1645#endif
1646
1647 if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1648 mvm->debugfs_dir, &mvm->ps_disabled))
1649 goto err;
1650 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1651 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1652 goto err;
1653 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1654 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1655 goto err;
1656 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1657 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1658 goto err;
1659 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1660 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1661 goto err;
1662 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1663 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1664 goto err;
1665
1666 /*
1667 * Create a symlink with mac80211. It will be removed when mac80211
1668 * exists (before the opmode exists which removes the target.)
1669 */
1670 snprintf(buf, 100, "../../%s/%s",
1671 dbgfs_dir->d_parent->d_parent->d_name.name,
1672 dbgfs_dir->d_parent->d_name.name);
1673 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1674 goto err;
1675
1676 return 0;
1677err:
1678 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1679 return -ENOMEM;
1680}