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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#include <linux/netdevice.h>
69
70#include "mvm.h"
71#include "fw-dbg.h"
72#include "sta.h"
73#include "iwl-io.h"
74#include "debugfs.h"
75#include "iwl-fw-error-dump.h"
76
77static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
78 char __user *user_buf,
79 size_t count, loff_t *ppos)
80{
81 struct iwl_mvm *mvm = file->private_data;
82 char buf[16];
83 int pos, budget;
84
85 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
86 return -EIO;
87
88 mutex_lock(&mvm->mutex);
89 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
90 mutex_unlock(&mvm->mutex);
91
92 if (budget < 0)
93 return budget;
94
95 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
96
97 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
98}
99
100static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
101 size_t count, loff_t *ppos)
102{
103 int ret;
104
105 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
106 return -EIO;
107
108 mutex_lock(&mvm->mutex);
109 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
110 mutex_unlock(&mvm->mutex);
111
112 return ret ?: count;
113}
114
115static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
116 size_t count, loff_t *ppos)
117{
118 int ret;
119 u32 scd_q_msk;
120
121 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
122 return -EIO;
123
124 if (sscanf(buf, "%x", &scd_q_msk) != 1)
125 return -EINVAL;
126
127 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
128
129 mutex_lock(&mvm->mutex);
130 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
131 mutex_unlock(&mvm->mutex);
132
133 return ret;
134}
135
136static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
137 size_t count, loff_t *ppos)
138{
139 struct iwl_mvm_sta *mvmsta;
140 int sta_id, drain, ret;
141
142 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
143 return -EIO;
144
145 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
146 return -EINVAL;
147 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
148 return -EINVAL;
149 if (drain < 0 || drain > 1)
150 return -EINVAL;
151
152 mutex_lock(&mvm->mutex);
153
154 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
155
156 if (!mvmsta)
157 ret = -ENOENT;
158 else
159 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
160
161 mutex_unlock(&mvm->mutex);
162
163 return ret;
164}
165
166static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
167 size_t count, loff_t *ppos)
168{
169 struct iwl_mvm *mvm = file->private_data;
170 const struct fw_img *img;
171 unsigned int ofs, len;
172 size_t ret;
173 u8 *ptr;
174
175 if (!mvm->ucode_loaded)
176 return -EINVAL;
177
178 /* default is to dump the entire data segment */
179 img = &mvm->fw->img[mvm->cur_ucode];
180 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
181 len = img->sec[IWL_UCODE_SECTION_DATA].len;
182
183 if (mvm->dbgfs_sram_len) {
184 ofs = mvm->dbgfs_sram_offset;
185 len = mvm->dbgfs_sram_len;
186 }
187
188 ptr = kzalloc(len, GFP_KERNEL);
189 if (!ptr)
190 return -ENOMEM;
191
192 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
193
194 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
195
196 kfree(ptr);
197
198 return ret;
199}
200
201static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
202 size_t count, loff_t *ppos)
203{
204 const struct fw_img *img;
205 u32 offset, len;
206 u32 img_offset, img_len;
207
208 if (!mvm->ucode_loaded)
209 return -EINVAL;
210
211 img = &mvm->fw->img[mvm->cur_ucode];
212 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
213 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
214
215 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
216 if ((offset & 0x3) || (len & 0x3))
217 return -EINVAL;
218
219 if (offset + len > img_offset + img_len)
220 return -EINVAL;
221
222 mvm->dbgfs_sram_offset = offset;
223 mvm->dbgfs_sram_len = len;
224 } else {
225 mvm->dbgfs_sram_offset = 0;
226 mvm->dbgfs_sram_len = 0;
227 }
228
229 return count;
230}
231
232static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
233 char __user *user_buf,
234 size_t count, loff_t *ppos)
235{
236 struct iwl_mvm *mvm = file->private_data;
237 char buf[16];
238 int pos;
239
240 if (!mvm->temperature_test)
241 pos = scnprintf(buf , sizeof(buf), "disabled\n");
242 else
243 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
244
245 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
246}
247
248/*
249 * Set NIC Temperature
250 * Cause the driver to ignore the actual NIC temperature reported by the FW
251 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
252 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
253 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
254 */
255static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
256 char *buf, size_t count,
257 loff_t *ppos)
258{
259 int temperature;
260
261 if (!mvm->ucode_loaded && !mvm->temperature_test)
262 return -EIO;
263
264 if (kstrtoint(buf, 10, &temperature))
265 return -EINVAL;
266 /* not a legal temperature */
267 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
268 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
269 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
270 return -EINVAL;
271
272 mutex_lock(&mvm->mutex);
273 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
274 if (!mvm->temperature_test)
275 goto out;
276
277 mvm->temperature_test = false;
278 /* Since we can't read the temp while awake, just set
279 * it to zero until we get the next RX stats from the
280 * firmware.
281 */
282 mvm->temperature = 0;
283 } else {
284 mvm->temperature_test = true;
285 mvm->temperature = temperature;
286 }
287 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
288 mvm->temperature_test ? "En" : "Dis" ,
289 mvm->temperature);
290 /* handle the temperature change */
291 iwl_mvm_tt_handler(mvm);
292
293out:
294 mutex_unlock(&mvm->mutex);
295
296 return count;
297}
298
299static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
300 char __user *user_buf,
301 size_t count, loff_t *ppos)
302{
303 struct iwl_mvm *mvm = file->private_data;
304 char buf[16];
305 int pos, ret;
306 s32 temp;
307
308 if (!mvm->ucode_loaded)
309 return -EIO;
310
311 mutex_lock(&mvm->mutex);
312 ret = iwl_mvm_get_temp(mvm, &temp);
313 mutex_unlock(&mvm->mutex);
314
315 if (ret)
316 return -EIO;
317
318 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
319
320 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
321}
322
323static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
324 size_t count, loff_t *ppos)
325{
326 struct iwl_mvm *mvm = file->private_data;
327 struct ieee80211_sta *sta;
328 char buf[400];
329 int i, pos = 0, bufsz = sizeof(buf);
330
331 mutex_lock(&mvm->mutex);
332
333 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
334 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
335 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
336 lockdep_is_held(&mvm->mutex));
337 if (!sta)
338 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
339 else if (IS_ERR(sta))
340 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
341 PTR_ERR(sta));
342 else
343 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
344 sta->addr);
345 }
346
347 mutex_unlock(&mvm->mutex);
348
349 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
350}
351
352static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
353 char __user *user_buf,
354 size_t count, loff_t *ppos)
355{
356 struct iwl_mvm *mvm = file->private_data;
357 char buf[64];
358 int bufsz = sizeof(buf);
359 int pos = 0;
360
361 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
362 mvm->disable_power_off);
363 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
364 mvm->disable_power_off_d3);
365
366 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
367}
368
369static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
370 size_t count, loff_t *ppos)
371{
372 int ret, val;
373
374 if (!mvm->ucode_loaded)
375 return -EIO;
376
377 if (!strncmp("disable_power_off_d0=", buf, 21)) {
378 if (sscanf(buf + 21, "%d", &val) != 1)
379 return -EINVAL;
380 mvm->disable_power_off = val;
381 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
382 if (sscanf(buf + 21, "%d", &val) != 1)
383 return -EINVAL;
384 mvm->disable_power_off_d3 = val;
385 } else {
386 return -EINVAL;
387 }
388
389 mutex_lock(&mvm->mutex);
390 ret = iwl_mvm_power_update_device(mvm);
391 mutex_unlock(&mvm->mutex);
392
393 return ret ?: count;
394}
395
396#define BT_MBOX_MSG(_notif, _num, _field) \
397 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
398 >> BT_MBOX##_num##_##_field##_POS)
399
400
401#define BT_MBOX_PRINT(_num, _field, _end) \
402 pos += scnprintf(buf + pos, bufsz - pos, \
403 "\t%s: %d%s", \
404 #_field, \
405 BT_MBOX_MSG(notif, _num, _field), \
406 true ? "\n" : ", ");
407
408static
409int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
410 int pos, int bufsz)
411{
412 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
413
414 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
415 BT_MBOX_PRINT(0, LE_PROF1, false);
416 BT_MBOX_PRINT(0, LE_PROF2, false);
417 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
418 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
419 BT_MBOX_PRINT(0, INBAND_S, false);
420 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
421 BT_MBOX_PRINT(0, LE_SCAN, false);
422 BT_MBOX_PRINT(0, LE_ADV, false);
423 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
424 BT_MBOX_PRINT(0, OPEN_CON_1, true);
425
426 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
427
428 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
429 BT_MBOX_PRINT(1, IP_SR, false);
430 BT_MBOX_PRINT(1, LE_MSTR, false);
431 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
432 BT_MBOX_PRINT(1, MSG_TYPE, false);
433 BT_MBOX_PRINT(1, SSN, true);
434
435 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
436
437 BT_MBOX_PRINT(2, SNIFF_ACT, false);
438 BT_MBOX_PRINT(2, PAG, false);
439 BT_MBOX_PRINT(2, INQUIRY, false);
440 BT_MBOX_PRINT(2, CONN, false);
441 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
442 BT_MBOX_PRINT(2, DISC, false);
443 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
444 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
445 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
446 BT_MBOX_PRINT(2, SCO_DURATION, true);
447
448 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
449
450 BT_MBOX_PRINT(3, SCO_STATE, false);
451 BT_MBOX_PRINT(3, SNIFF_STATE, false);
452 BT_MBOX_PRINT(3, A2DP_STATE, false);
453 BT_MBOX_PRINT(3, ACL_STATE, false);
454 BT_MBOX_PRINT(3, MSTR_STATE, false);
455 BT_MBOX_PRINT(3, OBX_STATE, false);
456 BT_MBOX_PRINT(3, OPEN_CON_2, false);
457 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
458 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
459 BT_MBOX_PRINT(3, INBAND_P, false);
460 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
461 BT_MBOX_PRINT(3, SSN_2, false);
462 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
463
464 return pos;
465}
466
467static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
468 size_t count, loff_t *ppos)
469{
470 struct iwl_mvm *mvm = file->private_data;
471 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
472 char *buf;
473 int ret, pos = 0, bufsz = sizeof(char) * 1024;
474
475 buf = kmalloc(bufsz, GFP_KERNEL);
476 if (!buf)
477 return -ENOMEM;
478
479 mutex_lock(&mvm->mutex);
480
481 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
482
483 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
484 notif->bt_ci_compliance);
485 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
486 le32_to_cpu(notif->primary_ch_lut));
487 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
488 le32_to_cpu(notif->secondary_ch_lut));
489 pos += scnprintf(buf + pos,
490 bufsz - pos, "bt_activity_grading = %d\n",
491 le32_to_cpu(notif->bt_activity_grading));
492 pos += scnprintf(buf + pos, bufsz - pos,
493 "antenna isolation = %d CORUN LUT index = %d\n",
494 mvm->last_ant_isol, mvm->last_corun_lut);
495 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
496 (notif->ttc_rrc_status >> 4) & 0xF);
497 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
498 notif->ttc_rrc_status & 0xF);
499
500 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
501 IWL_MVM_BT_COEX_SYNC2SCO);
502 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
503 IWL_MVM_BT_COEX_MPLUT);
504 pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n",
505 IWL_MVM_BT_COEX_CORUNNING);
506
507 mutex_unlock(&mvm->mutex);
508
509 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
510 kfree(buf);
511
512 return ret;
513}
514#undef BT_MBOX_PRINT
515
516static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
517 size_t count, loff_t *ppos)
518{
519 struct iwl_mvm *mvm = file->private_data;
520 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
521 char buf[256];
522 int bufsz = sizeof(buf);
523 int pos = 0;
524
525 mutex_lock(&mvm->mutex);
526
527 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
528 pos += scnprintf(buf + pos, bufsz - pos,
529 "\tPrimary Channel Bitmap 0x%016llx\n",
530 le64_to_cpu(cmd->bt_primary_ci));
531 pos += scnprintf(buf + pos, bufsz - pos,
532 "\tSecondary Channel Bitmap 0x%016llx\n",
533 le64_to_cpu(cmd->bt_secondary_ci));
534
535 mutex_unlock(&mvm->mutex);
536
537 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
538}
539
540static ssize_t
541iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
542 size_t count, loff_t *ppos)
543{
544 u32 bt_tx_prio;
545
546 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
547 return -EINVAL;
548 if (bt_tx_prio > 4)
549 return -EINVAL;
550
551 mvm->bt_tx_prio = bt_tx_prio;
552
553 return count;
554}
555
556static ssize_t
557iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
558 size_t count, loff_t *ppos)
559{
560 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
561 [BT_FORCE_ANT_DIS] = "dis",
562 [BT_FORCE_ANT_AUTO] = "auto",
563 [BT_FORCE_ANT_BT] = "bt",
564 [BT_FORCE_ANT_WIFI] = "wifi",
565 };
566 int ret, bt_force_ant_mode;
567
568 for (bt_force_ant_mode = 0;
569 bt_force_ant_mode < ARRAY_SIZE(modes_str);
570 bt_force_ant_mode++) {
571 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
572 break;
573 }
574
575 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
576 return -EINVAL;
577
578 ret = 0;
579 mutex_lock(&mvm->mutex);
580 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
581 goto out;
582
583 mvm->bt_force_ant_mode = bt_force_ant_mode;
584 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
585 modes_str[mvm->bt_force_ant_mode]);
586 ret = iwl_send_bt_init_conf(mvm);
587
588out:
589 mutex_unlock(&mvm->mutex);
590 return ret ?: count;
591}
592
593#define PRINT_STATS_LE32(_struct, _memb) \
594 pos += scnprintf(buf + pos, bufsz - pos, \
595 fmt_table, #_memb, \
596 le32_to_cpu(_struct->_memb))
597
598static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
599 char __user *user_buf, size_t count,
600 loff_t *ppos)
601{
602 struct iwl_mvm *mvm = file->private_data;
603 static const char *fmt_table = "\t%-30s %10u\n";
604 static const char *fmt_header = "%-32s\n";
605 int pos = 0;
606 char *buf;
607 int ret;
608 /* 43 is the size of each data line, 33 is the size of each header */
609 size_t bufsz =
610 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
611 (4 * 33) + 1;
612
613 struct mvm_statistics_rx_phy *ofdm;
614 struct mvm_statistics_rx_phy *cck;
615 struct mvm_statistics_rx_non_phy *general;
616 struct mvm_statistics_rx_ht_phy *ht;
617
618 buf = kzalloc(bufsz, GFP_KERNEL);
619 if (!buf)
620 return -ENOMEM;
621
622 mutex_lock(&mvm->mutex);
623
624 ofdm = &mvm->rx_stats.ofdm;
625 cck = &mvm->rx_stats.cck;
626 general = &mvm->rx_stats.general;
627 ht = &mvm->rx_stats.ofdm_ht;
628
629 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
630 "Statistics_Rx - OFDM");
631 PRINT_STATS_LE32(ofdm, ina_cnt);
632 PRINT_STATS_LE32(ofdm, fina_cnt);
633 PRINT_STATS_LE32(ofdm, plcp_err);
634 PRINT_STATS_LE32(ofdm, crc32_err);
635 PRINT_STATS_LE32(ofdm, overrun_err);
636 PRINT_STATS_LE32(ofdm, early_overrun_err);
637 PRINT_STATS_LE32(ofdm, crc32_good);
638 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
639 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
640 PRINT_STATS_LE32(ofdm, sfd_timeout);
641 PRINT_STATS_LE32(ofdm, fina_timeout);
642 PRINT_STATS_LE32(ofdm, unresponded_rts);
643 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
644 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
645 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
646 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
647 PRINT_STATS_LE32(ofdm, dsp_self_kill);
648 PRINT_STATS_LE32(ofdm, mh_format_err);
649 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
650 PRINT_STATS_LE32(ofdm, reserved);
651
652 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
653 "Statistics_Rx - CCK");
654 PRINT_STATS_LE32(cck, ina_cnt);
655 PRINT_STATS_LE32(cck, fina_cnt);
656 PRINT_STATS_LE32(cck, plcp_err);
657 PRINT_STATS_LE32(cck, crc32_err);
658 PRINT_STATS_LE32(cck, overrun_err);
659 PRINT_STATS_LE32(cck, early_overrun_err);
660 PRINT_STATS_LE32(cck, crc32_good);
661 PRINT_STATS_LE32(cck, false_alarm_cnt);
662 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
663 PRINT_STATS_LE32(cck, sfd_timeout);
664 PRINT_STATS_LE32(cck, fina_timeout);
665 PRINT_STATS_LE32(cck, unresponded_rts);
666 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
667 PRINT_STATS_LE32(cck, sent_ack_cnt);
668 PRINT_STATS_LE32(cck, sent_cts_cnt);
669 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
670 PRINT_STATS_LE32(cck, dsp_self_kill);
671 PRINT_STATS_LE32(cck, mh_format_err);
672 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
673 PRINT_STATS_LE32(cck, reserved);
674
675 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
676 "Statistics_Rx - GENERAL");
677 PRINT_STATS_LE32(general, bogus_cts);
678 PRINT_STATS_LE32(general, bogus_ack);
679 PRINT_STATS_LE32(general, non_bssid_frames);
680 PRINT_STATS_LE32(general, filtered_frames);
681 PRINT_STATS_LE32(general, non_channel_beacons);
682 PRINT_STATS_LE32(general, channel_beacons);
683 PRINT_STATS_LE32(general, num_missed_bcon);
684 PRINT_STATS_LE32(general, adc_rx_saturation_time);
685 PRINT_STATS_LE32(general, ina_detection_search_time);
686 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
687 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
688 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
689 PRINT_STATS_LE32(general, interference_data_flag);
690 PRINT_STATS_LE32(general, channel_load);
691 PRINT_STATS_LE32(general, dsp_false_alarms);
692 PRINT_STATS_LE32(general, beacon_rssi_a);
693 PRINT_STATS_LE32(general, beacon_rssi_b);
694 PRINT_STATS_LE32(general, beacon_rssi_c);
695 PRINT_STATS_LE32(general, beacon_energy_a);
696 PRINT_STATS_LE32(general, beacon_energy_b);
697 PRINT_STATS_LE32(general, beacon_energy_c);
698 PRINT_STATS_LE32(general, num_bt_kills);
699 PRINT_STATS_LE32(general, mac_id);
700 PRINT_STATS_LE32(general, directed_data_mpdu);
701
702 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
703 "Statistics_Rx - HT");
704 PRINT_STATS_LE32(ht, plcp_err);
705 PRINT_STATS_LE32(ht, overrun_err);
706 PRINT_STATS_LE32(ht, early_overrun_err);
707 PRINT_STATS_LE32(ht, crc32_good);
708 PRINT_STATS_LE32(ht, crc32_err);
709 PRINT_STATS_LE32(ht, mh_format_err);
710 PRINT_STATS_LE32(ht, agg_crc32_good);
711 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
712 PRINT_STATS_LE32(ht, agg_cnt);
713 PRINT_STATS_LE32(ht, unsupport_mcs);
714
715 mutex_unlock(&mvm->mutex);
716
717 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
718 kfree(buf);
719
720 return ret;
721}
722#undef PRINT_STAT_LE32
723
724static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
725 char __user *user_buf, size_t count,
726 loff_t *ppos,
727 struct iwl_mvm_frame_stats *stats)
728{
729 char *buff, *pos, *endpos;
730 int idx, i;
731 int ret;
732 static const size_t bufsz = 1024;
733
734 buff = kmalloc(bufsz, GFP_KERNEL);
735 if (!buff)
736 return -ENOMEM;
737
738 spin_lock_bh(&mvm->drv_stats_lock);
739
740 pos = buff;
741 endpos = pos + bufsz;
742
743 pos += scnprintf(pos, endpos - pos,
744 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
745 stats->legacy_frames,
746 stats->ht_frames,
747 stats->vht_frames);
748 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
749 stats->bw_20_frames,
750 stats->bw_40_frames,
751 stats->bw_80_frames);
752 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
753 stats->ngi_frames,
754 stats->sgi_frames);
755 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
756 stats->siso_frames,
757 stats->mimo2_frames);
758 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
759 stats->fail_frames,
760 stats->success_frames);
761 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
762 stats->agg_frames);
763 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
764 stats->ampdu_count);
765 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
766 stats->ampdu_count > 0 ?
767 (stats->agg_frames / stats->ampdu_count) : 0);
768
769 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
770
771 idx = stats->last_frame_idx - 1;
772 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
773 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
774 if (stats->last_rates[idx] == 0)
775 continue;
776 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
777 (int)(ARRAY_SIZE(stats->last_rates) - i));
778 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
779 }
780 spin_unlock_bh(&mvm->drv_stats_lock);
781
782 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
783 kfree(buff);
784
785 return ret;
786}
787
788static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
789 char __user *user_buf, size_t count,
790 loff_t *ppos)
791{
792 struct iwl_mvm *mvm = file->private_data;
793
794 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
795 &mvm->drv_rx_stats);
796}
797
798static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
799 size_t count, loff_t *ppos)
800{
801 int ret;
802
803 mutex_lock(&mvm->mutex);
804
805 /* allow one more restart that we're provoking here */
806 if (mvm->restart_fw >= 0)
807 mvm->restart_fw++;
808
809 /* take the return value to make compiler happy - it will fail anyway */
810 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
811
812 mutex_unlock(&mvm->mutex);
813
814 return count;
815}
816
817static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
818 size_t count, loff_t *ppos)
819{
820 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
821 if (ret)
822 return ret;
823
824 iwl_force_nmi(mvm->trans);
825
826 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
827
828 return count;
829}
830
831static ssize_t
832iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
833 char __user *user_buf,
834 size_t count, loff_t *ppos)
835{
836 struct iwl_mvm *mvm = file->private_data;
837 int pos = 0;
838 char buf[32];
839 const size_t bufsz = sizeof(buf);
840
841 /* print which antennas were set for the scan command by the user */
842 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
843 if (mvm->scan_rx_ant & ANT_A)
844 pos += scnprintf(buf + pos, bufsz - pos, "A");
845 if (mvm->scan_rx_ant & ANT_B)
846 pos += scnprintf(buf + pos, bufsz - pos, "B");
847 if (mvm->scan_rx_ant & ANT_C)
848 pos += scnprintf(buf + pos, bufsz - pos, "C");
849 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
850
851 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
852}
853
854static ssize_t
855iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
856 size_t count, loff_t *ppos)
857{
858 u8 scan_rx_ant;
859
860 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
861 return -EINVAL;
862 if (scan_rx_ant > ANT_ABC)
863 return -EINVAL;
864 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
865 return -EINVAL;
866
867 if (mvm->scan_rx_ant != scan_rx_ant) {
868 mvm->scan_rx_ant = scan_rx_ant;
869 if (fw_has_capa(&mvm->fw->ucode_capa,
870 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
871 iwl_mvm_config_scan(mvm);
872 }
873
874 return count;
875}
876
877static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
878 char *buf, size_t count,
879 loff_t *ppos)
880{
881 struct iwl_rss_config_cmd cmd = {
882 .flags = cpu_to_le32(IWL_RSS_ENABLE),
883 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
884 IWL_RSS_HASH_TYPE_IPV4_UDP |
885 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
886 IWL_RSS_HASH_TYPE_IPV6_TCP |
887 IWL_RSS_HASH_TYPE_IPV6_UDP |
888 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
889 };
890 int ret, i, num_repeats, nbytes = count / 2;
891
892 ret = hex2bin(cmd.indirection_table, buf, nbytes);
893 if (ret)
894 return ret;
895
896 /*
897 * The input is the redirection table, partial or full.
898 * Repeat the pattern if needed.
899 * For example, input of 01020F will be repeated 42 times,
900 * indirecting RSS hash results to queues 1, 2, 15 (skipping
901 * queues 3 - 14).
902 */
903 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
904 for (i = 1; i < num_repeats; i++)
905 memcpy(&cmd.indirection_table[i * nbytes],
906 cmd.indirection_table, nbytes);
907 /* handle cut in the middle pattern for the last places */
908 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
909 ARRAY_SIZE(cmd.indirection_table) % nbytes);
910
911 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
912
913 mutex_lock(&mvm->mutex);
914 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
915 mutex_unlock(&mvm->mutex);
916
917 return ret ?: count;
918}
919
920static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
921 char *buf, size_t count,
922 loff_t *ppos)
923{
924 struct iwl_rx_cmd_buffer rxb = {
925 ._rx_page_order = 0,
926 .truesize = 0, /* not used */
927 ._offset = 0,
928 };
929 struct iwl_rx_packet *pkt;
930 struct iwl_rx_mpdu_desc *desc;
931 int bin_len = count / 2;
932 int ret = -EINVAL;
933
934 /* supporting only 9000 descriptor */
935 if (!mvm->trans->cfg->mq_rx_supported)
936 return -ENOTSUPP;
937
938 rxb._page = alloc_pages(GFP_ATOMIC, 0);
939 if (!rxb._page)
940 return -ENOMEM;
941 pkt = rxb_addr(&rxb);
942
943 ret = hex2bin(page_address(rxb._page), buf, bin_len);
944 if (ret)
945 goto out;
946
947 /* avoid invalid memory access */
948 if (bin_len < sizeof(*pkt) + sizeof(*desc))
949 goto out;
950
951 /* check this is RX packet */
952 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) !=
953 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))
954 goto out;
955
956 /* check the length in metadata matches actual received length */
957 desc = (void *)pkt->data;
958 if (le16_to_cpu(desc->mpdu_len) !=
959 (bin_len - sizeof(*desc) - sizeof(*pkt)))
960 goto out;
961
962 local_bh_disable();
963 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0);
964 local_bh_enable();
965 ret = 0;
966
967out:
968 iwl_free_rxb(&rxb);
969
970 return ret ?: count;
971}
972
973static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
974 char __user *user_buf,
975 size_t count, loff_t *ppos)
976{
977 struct iwl_mvm *mvm = file->private_data;
978 int conf;
979 char buf[8];
980 const size_t bufsz = sizeof(buf);
981 int pos = 0;
982
983 mutex_lock(&mvm->mutex);
984 conf = mvm->fw_dbg_conf;
985 mutex_unlock(&mvm->mutex);
986
987 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
988
989 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
990}
991
992/*
993 * Enable / Disable continuous recording.
994 * Cause the FW to start continuous recording, by sending the relevant hcmd.
995 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING.
996 * Disable: for 0 as input, DISABLE_CONT_RECORDING.
997 */
998static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm,
999 char *buf, size_t count,
1000 loff_t *ppos)
1001{
1002 struct iwl_trans *trans = mvm->trans;
1003 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv;
1004 struct iwl_continuous_record_cmd cont_rec = {};
1005 int ret, rec_mode;
1006
1007 if (!dest)
1008 return -EOPNOTSUPP;
1009
1010 if (dest->monitor_mode != SMEM_MODE ||
1011 trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
1012 return -EOPNOTSUPP;
1013
1014 ret = kstrtoint(buf, 0, &rec_mode);
1015 if (ret)
1016 return ret;
1017
1018 cont_rec.record_mode.enable_recording = rec_mode ?
1019 cpu_to_le16(ENABLE_CONT_RECORDING) :
1020 cpu_to_le16(DISABLE_CONT_RECORDING);
1021
1022 mutex_lock(&mvm->mutex);
1023 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0,
1024 sizeof(cont_rec), &cont_rec);
1025 mutex_unlock(&mvm->mutex);
1026
1027 return ret ?: count;
1028}
1029
1030static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1031 char *buf, size_t count,
1032 loff_t *ppos)
1033{
1034 unsigned int conf_id;
1035 int ret;
1036
1037 ret = kstrtouint(buf, 0, &conf_id);
1038 if (ret)
1039 return ret;
1040
1041 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1042 return -EINVAL;
1043
1044 mutex_lock(&mvm->mutex);
1045 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
1046 mutex_unlock(&mvm->mutex);
1047
1048 return ret ?: count;
1049}
1050
1051static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1052 char *buf, size_t count,
1053 loff_t *ppos)
1054{
1055 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1056
1057 if (ret)
1058 return ret;
1059
1060 iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf,
1061 (count - 1), NULL);
1062
1063 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1064
1065 return count;
1066}
1067
1068static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm,
1069 char *buf, size_t count,
1070 loff_t *ppos)
1071{
1072 unsigned int max_amsdu_len;
1073 int ret;
1074
1075 ret = kstrtouint(buf, 0, &max_amsdu_len);
1076 if (ret)
1077 return ret;
1078
1079 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454)
1080 return -EINVAL;
1081 mvm->max_amsdu_len = max_amsdu_len;
1082
1083 return count;
1084}
1085
1086#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1087#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1088static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1089 char __user *user_buf,
1090 size_t count, loff_t *ppos)
1091{
1092 struct iwl_mvm *mvm = file->private_data;
1093 struct iwl_bcast_filter_cmd cmd;
1094 const struct iwl_fw_bcast_filter *filter;
1095 char *buf;
1096 int bufsz = 1024;
1097 int i, j, pos = 0;
1098 ssize_t ret;
1099
1100 buf = kzalloc(bufsz, GFP_KERNEL);
1101 if (!buf)
1102 return -ENOMEM;
1103
1104 mutex_lock(&mvm->mutex);
1105 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1106 ADD_TEXT("None\n");
1107 mutex_unlock(&mvm->mutex);
1108 goto out;
1109 }
1110 mutex_unlock(&mvm->mutex);
1111
1112 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1113 filter = &cmd.filters[i];
1114
1115 ADD_TEXT("Filter [%d]:\n", i);
1116 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1117 ADD_TEXT("\tFrame Type: %s\n",
1118 filter->frame_type ? "IPv4" : "Generic");
1119
1120 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1121 const struct iwl_fw_bcast_filter_attr *attr;
1122
1123 attr = &filter->attrs[j];
1124 if (!attr->mask)
1125 break;
1126
1127 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1128 j, attr->offset,
1129 attr->offset_type ? "IP End" :
1130 "Payload Start",
1131 be32_to_cpu(attr->mask),
1132 be32_to_cpu(attr->val),
1133 le16_to_cpu(attr->reserved1));
1134 }
1135 }
1136out:
1137 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1138 kfree(buf);
1139 return ret;
1140}
1141
1142static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1143 size_t count, loff_t *ppos)
1144{
1145 int pos, next_pos;
1146 struct iwl_fw_bcast_filter filter = {};
1147 struct iwl_bcast_filter_cmd cmd;
1148 u32 filter_id, attr_id, mask, value;
1149 int err = 0;
1150
1151 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1152 &filter.frame_type, &pos) != 3)
1153 return -EINVAL;
1154
1155 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1156 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1157 return -EINVAL;
1158
1159 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1160 attr_id++) {
1161 struct iwl_fw_bcast_filter_attr *attr =
1162 &filter.attrs[attr_id];
1163
1164 if (pos >= count)
1165 break;
1166
1167 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1168 &attr->offset, &attr->offset_type,
1169 &mask, &value, &next_pos) != 4)
1170 return -EINVAL;
1171
1172 attr->mask = cpu_to_be32(mask);
1173 attr->val = cpu_to_be32(value);
1174 if (mask)
1175 filter.num_attrs++;
1176
1177 pos += next_pos;
1178 }
1179
1180 mutex_lock(&mvm->mutex);
1181 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1182 &filter, sizeof(filter));
1183
1184 /* send updated bcast filtering configuration */
1185 if (mvm->dbgfs_bcast_filtering.override &&
1186 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1187 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1188 sizeof(cmd), &cmd);
1189 mutex_unlock(&mvm->mutex);
1190
1191 return err ?: count;
1192}
1193
1194static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1195 char __user *user_buf,
1196 size_t count, loff_t *ppos)
1197{
1198 struct iwl_mvm *mvm = file->private_data;
1199 struct iwl_bcast_filter_cmd cmd;
1200 char *buf;
1201 int bufsz = 1024;
1202 int i, pos = 0;
1203 ssize_t ret;
1204
1205 buf = kzalloc(bufsz, GFP_KERNEL);
1206 if (!buf)
1207 return -ENOMEM;
1208
1209 mutex_lock(&mvm->mutex);
1210 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1211 ADD_TEXT("None\n");
1212 mutex_unlock(&mvm->mutex);
1213 goto out;
1214 }
1215 mutex_unlock(&mvm->mutex);
1216
1217 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1218 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1219
1220 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1221 i, mac->default_discard, mac->attached_filters);
1222 }
1223out:
1224 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1225 kfree(buf);
1226 return ret;
1227}
1228
1229static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1230 char *buf, size_t count,
1231 loff_t *ppos)
1232{
1233 struct iwl_bcast_filter_cmd cmd;
1234 struct iwl_fw_bcast_mac mac = {};
1235 u32 mac_id, attached_filters;
1236 int err = 0;
1237
1238 if (!mvm->bcast_filters)
1239 return -ENOENT;
1240
1241 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1242 &attached_filters) != 3)
1243 return -EINVAL;
1244
1245 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1246 mac.default_discard > 1 ||
1247 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1248 return -EINVAL;
1249
1250 mac.attached_filters = cpu_to_le16(attached_filters);
1251
1252 mutex_lock(&mvm->mutex);
1253 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1254 &mac, sizeof(mac));
1255
1256 /* send updated bcast filtering configuration */
1257 if (mvm->dbgfs_bcast_filtering.override &&
1258 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1259 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1260 sizeof(cmd), &cmd);
1261 mutex_unlock(&mvm->mutex);
1262
1263 return err ?: count;
1264}
1265#endif
1266
1267#ifdef CONFIG_PM_SLEEP
1268static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1269 size_t count, loff_t *ppos)
1270{
1271 int store;
1272
1273 if (sscanf(buf, "%d", &store) != 1)
1274 return -EINVAL;
1275
1276 mvm->store_d3_resume_sram = store;
1277
1278 return count;
1279}
1280
1281static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1282 size_t count, loff_t *ppos)
1283{
1284 struct iwl_mvm *mvm = file->private_data;
1285 const struct fw_img *img;
1286 int ofs, len, pos = 0;
1287 size_t bufsz, ret;
1288 char *buf;
1289 u8 *ptr = mvm->d3_resume_sram;
1290
1291 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1292 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1293
1294 bufsz = len * 4 + 256;
1295 buf = kzalloc(bufsz, GFP_KERNEL);
1296 if (!buf)
1297 return -ENOMEM;
1298
1299 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1300 mvm->store_d3_resume_sram ? "en" : "dis");
1301
1302 if (ptr) {
1303 for (ofs = 0; ofs < len; ofs += 16) {
1304 pos += scnprintf(buf + pos, bufsz - pos,
1305 "0x%.4x %16ph\n", ofs, ptr + ofs);
1306 }
1307 } else {
1308 pos += scnprintf(buf + pos, bufsz - pos,
1309 "(no data captured)\n");
1310 }
1311
1312 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1313
1314 kfree(buf);
1315
1316 return ret;
1317}
1318#endif
1319
1320#define PRINT_MVM_REF(ref) do { \
1321 if (mvm->refs[ref]) \
1322 pos += scnprintf(buf + pos, bufsz - pos, \
1323 "\t(0x%lx): %d %s\n", \
1324 BIT(ref), mvm->refs[ref], #ref); \
1325} while (0)
1326
1327static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1328 char __user *user_buf,
1329 size_t count, loff_t *ppos)
1330{
1331 struct iwl_mvm *mvm = file->private_data;
1332 int i, pos = 0;
1333 char buf[256];
1334 const size_t bufsz = sizeof(buf);
1335 u32 refs = 0;
1336
1337 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1338 if (mvm->refs[i])
1339 refs |= BIT(i);
1340
1341 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1342 refs);
1343
1344 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1345 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1346 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1347 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1348 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1349 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1350 PRINT_MVM_REF(IWL_MVM_REF_USER);
1351 PRINT_MVM_REF(IWL_MVM_REF_TX);
1352 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1353 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1354 PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1355 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1356 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1357 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1358 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1359 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1360 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1361 PRINT_MVM_REF(IWL_MVM_REF_NMI);
1362 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1363 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1364 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1365 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1366 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1367 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD);
1368 PRINT_MVM_REF(IWL_MVM_REF_RX);
1369
1370 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1371}
1372
1373static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1374 size_t count, loff_t *ppos)
1375{
1376 unsigned long value;
1377 int ret;
1378 bool taken;
1379
1380 ret = kstrtoul(buf, 10, &value);
1381 if (ret < 0)
1382 return ret;
1383
1384 mutex_lock(&mvm->mutex);
1385
1386 taken = mvm->refs[IWL_MVM_REF_USER];
1387 if (value == 1 && !taken)
1388 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1389 else if (value == 0 && taken)
1390 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1391 else
1392 ret = -EINVAL;
1393
1394 mutex_unlock(&mvm->mutex);
1395
1396 if (ret < 0)
1397 return ret;
1398 return count;
1399}
1400
1401#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1402 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1403#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1404 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1405#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1406 if (!debugfs_create_file(alias, mode, parent, mvm, \
1407 &iwl_dbgfs_##name##_ops)) \
1408 goto err; \
1409 } while (0)
1410#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1411 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1412
1413static ssize_t
1414iwl_dbgfs_prph_reg_read(struct file *file,
1415 char __user *user_buf,
1416 size_t count, loff_t *ppos)
1417{
1418 struct iwl_mvm *mvm = file->private_data;
1419 int pos = 0;
1420 char buf[32];
1421 const size_t bufsz = sizeof(buf);
1422 int ret;
1423
1424 if (!mvm->dbgfs_prph_reg_addr)
1425 return -EINVAL;
1426
1427 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1428 if (ret)
1429 return ret;
1430
1431 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1432 mvm->dbgfs_prph_reg_addr,
1433 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1434
1435 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1436
1437 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1438}
1439
1440static ssize_t
1441iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1442 size_t count, loff_t *ppos)
1443{
1444 u8 args;
1445 u32 value;
1446 int ret;
1447
1448 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1449 /* if we only want to set the reg address - nothing more to do */
1450 if (args == 1)
1451 goto out;
1452
1453 /* otherwise, make sure we have both address and value */
1454 if (args != 2)
1455 return -EINVAL;
1456
1457 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1458 if (ret)
1459 return ret;
1460
1461 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1462
1463 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1464out:
1465 return count;
1466}
1467
1468static ssize_t
1469iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1470 size_t count, loff_t *ppos)
1471{
1472 int ret;
1473
1474 mutex_lock(&mvm->mutex);
1475 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1476 mutex_unlock(&mvm->mutex);
1477
1478 return ret ?: count;
1479}
1480
1481MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1482
1483/* Device wide debugfs entries */
1484MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1485MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1486MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1487MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1488MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1489MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1490MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1491MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1492MVM_DEBUGFS_READ_FILE_OPS(stations);
1493MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1494MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1495MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1496MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1497MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1498MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1499MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1500MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1501MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1502MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1503MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1504MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1505MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1506MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8);
1507MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8);
1508MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1509 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1510MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1511
1512#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1513MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1514MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1515#endif
1516
1517#ifdef CONFIG_PM_SLEEP
1518MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1519#endif
1520
1521static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1522 size_t count, loff_t *ppos)
1523{
1524 struct iwl_mvm *mvm = file->private_data;
1525 struct iwl_dbg_mem_access_cmd cmd = {};
1526 struct iwl_dbg_mem_access_rsp *rsp;
1527 struct iwl_host_cmd hcmd = {
1528 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1529 .data = { &cmd, },
1530 .len = { sizeof(cmd) },
1531 };
1532 size_t delta;
1533 ssize_t ret, len;
1534
1535 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1536 DEBUG_GROUP, 0);
1537 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1538
1539 /* Take care of alignment of both the position and the length */
1540 delta = *ppos & 0x3;
1541 cmd.addr = cpu_to_le32(*ppos - delta);
1542 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1543 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1544
1545 mutex_lock(&mvm->mutex);
1546 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1547 mutex_unlock(&mvm->mutex);
1548
1549 if (ret < 0)
1550 return ret;
1551
1552 rsp = (void *)hcmd.resp_pkt->data;
1553 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1554 ret = -ENXIO;
1555 goto out;
1556 }
1557
1558 len = min((size_t)le32_to_cpu(rsp->len) << 2,
1559 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1560 len = min(len - delta, count);
1561 if (len < 0) {
1562 ret = -EFAULT;
1563 goto out;
1564 }
1565
1566 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len);
1567 *ppos += ret;
1568
1569out:
1570 iwl_free_resp(&hcmd);
1571 return ret;
1572}
1573
1574static ssize_t iwl_dbgfs_mem_write(struct file *file,
1575 const char __user *user_buf, size_t count,
1576 loff_t *ppos)
1577{
1578 struct iwl_mvm *mvm = file->private_data;
1579 struct iwl_dbg_mem_access_cmd *cmd;
1580 struct iwl_dbg_mem_access_rsp *rsp;
1581 struct iwl_host_cmd hcmd = {};
1582 size_t cmd_size;
1583 size_t data_size;
1584 u32 op, len;
1585 ssize_t ret;
1586
1587 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR,
1588 DEBUG_GROUP, 0);
1589
1590 if (*ppos & 0x3 || count < 4) {
1591 op = DEBUG_MEM_OP_WRITE_BYTES;
1592 len = min(count, (size_t)(4 - (*ppos & 0x3)));
1593 data_size = len;
1594 } else {
1595 op = DEBUG_MEM_OP_WRITE;
1596 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1597 data_size = len << 2;
1598 }
1599
1600 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1601 cmd = kzalloc(cmd_size, GFP_KERNEL);
1602 if (!cmd)
1603 return -ENOMEM;
1604
1605 cmd->op = cpu_to_le32(op);
1606 cmd->len = cpu_to_le32(len);
1607 cmd->addr = cpu_to_le32(*ppos);
1608 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1609 kfree(cmd);
1610 return -EFAULT;
1611 }
1612
1613 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1614 hcmd.data[0] = (void *)cmd;
1615 hcmd.len[0] = cmd_size;
1616
1617 mutex_lock(&mvm->mutex);
1618 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1619 mutex_unlock(&mvm->mutex);
1620
1621 kfree(cmd);
1622
1623 if (ret < 0)
1624 return ret;
1625
1626 rsp = (void *)hcmd.resp_pkt->data;
1627 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1628 ret = -ENXIO;
1629 goto out;
1630 }
1631
1632 ret = data_size;
1633 *ppos += ret;
1634
1635out:
1636 iwl_free_resp(&hcmd);
1637 return ret;
1638}
1639
1640static const struct file_operations iwl_dbgfs_mem_ops = {
1641 .read = iwl_dbgfs_mem_read,
1642 .write = iwl_dbgfs_mem_write,
1643 .open = simple_open,
1644 .llseek = default_llseek,
1645};
1646
1647int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1648{
1649 struct dentry *bcast_dir __maybe_unused;
1650 char buf[100];
1651
1652 spin_lock_init(&mvm->drv_stats_lock);
1653
1654 mvm->debugfs_dir = dbgfs_dir;
1655
1656 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1657 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1658 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1659 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1660 S_IWUSR | S_IRUSR);
1661 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1662 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR);
1663 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR);
1664 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1665 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1666 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1667 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1668 S_IRUSR | S_IWUSR);
1669 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1670 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1671 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1672 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1673 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1674 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1675 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1676 S_IWUSR | S_IRUSR);
1677 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1678 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1679 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1680 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1681 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR);
1682 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1683 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
1684 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR);
1685 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR);
1686 if (!debugfs_create_bool("enable_scan_iteration_notif",
1687 S_IRUSR | S_IWUSR,
1688 mvm->debugfs_dir,
1689 &mvm->scan_iter_notif_enabled))
1690 goto err;
1691 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR,
1692 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
1693 goto err;
1694
1695#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1696 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1697 bcast_dir = debugfs_create_dir("bcast_filtering",
1698 mvm->debugfs_dir);
1699 if (!bcast_dir)
1700 goto err;
1701
1702 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1703 bcast_dir,
1704 &mvm->dbgfs_bcast_filtering.override))
1705 goto err;
1706
1707 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1708 bcast_dir, S_IWUSR | S_IRUSR);
1709 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1710 bcast_dir, S_IWUSR | S_IRUSR);
1711 }
1712#endif
1713
1714#ifdef CONFIG_PM_SLEEP
1715 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1716 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1717 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1718 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1719 goto err;
1720 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1721 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1722 goto err;
1723#endif
1724
1725 if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1726 mvm->debugfs_dir, &mvm->ps_disabled))
1727 goto err;
1728 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1729 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1730 goto err;
1731 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1732 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1733 goto err;
1734 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1735 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1736 goto err;
1737 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1738 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1739 goto err;
1740 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1741 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1742 goto err;
1743
1744 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm,
1745 &iwl_dbgfs_mem_ops);
1746
1747 /*
1748 * Create a symlink with mac80211. It will be removed when mac80211
1749 * exists (before the opmode exists which removes the target.)
1750 */
1751 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
1752 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1753 goto err;
1754
1755 return 0;
1756err:
1757 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1758 return -ENOMEM;
1759}