1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/vmalloc.h>
8 #include <linux/err.h>
9 #include <linux/ieee80211.h>
10 #include <linux/netdevice.h>
11 
12 #include "mvm.h"
13 #include "sta.h"
14 #include "iwl-io.h"
15 #include "debugfs.h"
16 #include "iwl-modparams.h"
17 #include "fw/error-dump.h"
18 
19 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
20 					  char __user *user_buf,
21 					  size_t count, loff_t *ppos)
22 {
23 	struct iwl_mvm *mvm = file->private_data;
24 	char buf[16];
25 	int pos, budget;
26 
27 	if (!iwl_mvm_is_ctdp_supported(mvm))
28 		return -EOPNOTSUPP;
29 
30 	if (!iwl_mvm_firmware_running(mvm) ||
31 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
32 		return -EIO;
33 
34 	mutex_lock(&mvm->mutex);
35 	budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
36 	mutex_unlock(&mvm->mutex);
37 
38 	if (budget < 0)
39 		return budget;
40 
41 	pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
42 
43 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
44 }
45 
46 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
47 					 size_t count, loff_t *ppos)
48 {
49 	int ret;
50 
51 	if (!iwl_mvm_is_ctdp_supported(mvm))
52 		return -EOPNOTSUPP;
53 
54 	if (!iwl_mvm_firmware_running(mvm) ||
55 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
56 		return -EIO;
57 
58 	mutex_lock(&mvm->mutex);
59 	ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
60 	mutex_unlock(&mvm->mutex);
61 
62 	return ret ?: count;
63 }
64 
65 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
66 					    size_t count, loff_t *ppos)
67 {
68 	if (!iwl_mvm_firmware_running(mvm) ||
69 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
70 		return -EIO;
71 
72 	iwl_mvm_enter_ctkill(mvm);
73 
74 	return count;
75 }
76 
77 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
78 					size_t count, loff_t *ppos)
79 {
80 	int ret;
81 	u32 flush_arg;
82 
83 	if (!iwl_mvm_firmware_running(mvm) ||
84 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
85 		return -EIO;
86 
87 	if (kstrtou32(buf, 0, &flush_arg))
88 		return -EINVAL;
89 
90 	if (iwl_mvm_has_new_tx_api(mvm)) {
91 		IWL_DEBUG_TX_QUEUES(mvm,
92 				    "FLUSHING all tids queues on sta_id = %d\n",
93 				    flush_arg);
94 		mutex_lock(&mvm->mutex);
95 		ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF)
96 			? : count;
97 		mutex_unlock(&mvm->mutex);
98 		return ret;
99 	}
100 
101 	IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
102 			    flush_arg);
103 
104 	mutex_lock(&mvm->mutex);
105 	ret =  iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count;
106 	mutex_unlock(&mvm->mutex);
107 
108 	return ret;
109 }
110 
111 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
112 					 size_t count, loff_t *ppos)
113 {
114 	struct iwl_mvm_sta *mvmsta;
115 	int sta_id, drain, ret;
116 
117 	if (!iwl_mvm_firmware_running(mvm) ||
118 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
119 		return -EIO;
120 
121 	if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
122 		return -EINVAL;
123 	if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations)
124 		return -EINVAL;
125 	if (drain < 0 || drain > 1)
126 		return -EINVAL;
127 
128 	mutex_lock(&mvm->mutex);
129 
130 	mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
131 
132 	if (!mvmsta)
133 		ret = -ENOENT;
134 	else
135 		ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
136 
137 	mutex_unlock(&mvm->mutex);
138 
139 	return ret;
140 }
141 
142 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
143 				   size_t count, loff_t *ppos)
144 {
145 	struct iwl_mvm *mvm = file->private_data;
146 	const struct fw_img *img;
147 	unsigned int ofs, len;
148 	size_t ret;
149 	u8 *ptr;
150 
151 	if (!iwl_mvm_firmware_running(mvm))
152 		return -EINVAL;
153 
154 	/* default is to dump the entire data segment */
155 	img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
156 	ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
157 	len = img->sec[IWL_UCODE_SECTION_DATA].len;
158 
159 	if (mvm->dbgfs_sram_len) {
160 		ofs = mvm->dbgfs_sram_offset;
161 		len = mvm->dbgfs_sram_len;
162 	}
163 
164 	ptr = kzalloc(len, GFP_KERNEL);
165 	if (!ptr)
166 		return -ENOMEM;
167 
168 	iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
169 
170 	ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
171 
172 	kfree(ptr);
173 
174 	return ret;
175 }
176 
177 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
178 				    size_t count, loff_t *ppos)
179 {
180 	const struct fw_img *img;
181 	u32 offset, len;
182 	u32 img_offset, img_len;
183 
184 	if (!iwl_mvm_firmware_running(mvm))
185 		return -EINVAL;
186 
187 	img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
188 	img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
189 	img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
190 
191 	if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
192 		if ((offset & 0x3) || (len & 0x3))
193 			return -EINVAL;
194 
195 		if (offset + len > img_offset + img_len)
196 			return -EINVAL;
197 
198 		mvm->dbgfs_sram_offset = offset;
199 		mvm->dbgfs_sram_len = len;
200 	} else {
201 		mvm->dbgfs_sram_offset = 0;
202 		mvm->dbgfs_sram_len = 0;
203 	}
204 
205 	return count;
206 }
207 
208 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
209 						  char __user *user_buf,
210 						  size_t count, loff_t *ppos)
211 {
212 	struct iwl_mvm *mvm = file->private_data;
213 	char buf[16];
214 	int pos;
215 
216 	if (!mvm->temperature_test)
217 		pos = scnprintf(buf , sizeof(buf), "disabled\n");
218 	else
219 		pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
220 
221 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
222 }
223 
224 /*
225  * Set NIC Temperature
226  * Cause the driver to ignore the actual NIC temperature reported by the FW
227  * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
228  * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
229  * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
230  */
231 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
232 						   char *buf, size_t count,
233 						   loff_t *ppos)
234 {
235 	int temperature;
236 
237 	if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
238 		return -EIO;
239 
240 	if (kstrtoint(buf, 10, &temperature))
241 		return -EINVAL;
242 	/* not a legal temperature */
243 	if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
244 	     temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
245 	    temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
246 		return -EINVAL;
247 
248 	mutex_lock(&mvm->mutex);
249 	if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
250 		if (!mvm->temperature_test)
251 			goto out;
252 
253 		mvm->temperature_test = false;
254 		/* Since we can't read the temp while awake, just set
255 		 * it to zero until we get the next RX stats from the
256 		 * firmware.
257 		 */
258 		mvm->temperature = 0;
259 	} else {
260 		mvm->temperature_test = true;
261 		mvm->temperature = temperature;
262 	}
263 	IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
264 		       mvm->temperature_test ? "En" : "Dis" ,
265 		       mvm->temperature);
266 	/* handle the temperature change */
267 	iwl_mvm_tt_handler(mvm);
268 
269 out:
270 	mutex_unlock(&mvm->mutex);
271 
272 	return count;
273 }
274 
275 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
276 				       char __user *user_buf,
277 				       size_t count, loff_t *ppos)
278 {
279 	struct iwl_mvm *mvm = file->private_data;
280 	char buf[16];
281 	int pos, ret;
282 	s32 temp;
283 
284 	if (!iwl_mvm_firmware_running(mvm))
285 		return -EIO;
286 
287 	mutex_lock(&mvm->mutex);
288 	ret = iwl_mvm_get_temp(mvm, &temp);
289 	mutex_unlock(&mvm->mutex);
290 
291 	if (ret)
292 		return -EIO;
293 
294 	pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
295 
296 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
297 }
298 
299 #ifdef CONFIG_ACPI
300 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
301 					      char __user *user_buf,
302 					      size_t count, loff_t *ppos)
303 {
304 	struct iwl_mvm *mvm = file->private_data;
305 	char buf[256];
306 	int pos = 0;
307 	int bufsz = sizeof(buf);
308 	int tbl_idx;
309 
310 	if (!iwl_mvm_firmware_running(mvm))
311 		return -EIO;
312 
313 	mutex_lock(&mvm->mutex);
314 	tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
315 	if (tbl_idx < 0) {
316 		mutex_unlock(&mvm->mutex);
317 		return tbl_idx;
318 	}
319 
320 	if (!tbl_idx) {
321 		pos = scnprintf(buf, bufsz,
322 				"SAR geographic profile disabled\n");
323 	} else {
324 		pos += scnprintf(buf + pos, bufsz - pos,
325 				 "Use geographic profile %d\n", tbl_idx);
326 		pos += scnprintf(buf + pos, bufsz - pos,
327 				 "2.4GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n",
328 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0],
329 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1],
330 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max);
331 		pos += scnprintf(buf + pos, bufsz - pos,
332 				 "5.2GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n",
333 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0],
334 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1],
335 				 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max);
336 	}
337 	mutex_unlock(&mvm->mutex);
338 
339 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
340 }
341 #endif
342 
343 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
344 				       size_t count, loff_t *ppos)
345 {
346 	struct iwl_mvm *mvm = file->private_data;
347 	struct ieee80211_sta *sta;
348 	char buf[400];
349 	int i, pos = 0, bufsz = sizeof(buf);
350 
351 	mutex_lock(&mvm->mutex);
352 
353 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
354 		pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
355 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
356 						lockdep_is_held(&mvm->mutex));
357 		if (!sta)
358 			pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
359 		else if (IS_ERR(sta))
360 			pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
361 					 PTR_ERR(sta));
362 		else
363 			pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
364 					 sta->addr);
365 	}
366 
367 	mutex_unlock(&mvm->mutex);
368 
369 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
370 }
371 
372 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
373 				      size_t count, loff_t *ppos)
374 {
375 	struct ieee80211_sta *sta = file->private_data;
376 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
377 	struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
378 	struct iwl_mvm *mvm = lq_sta->pers.drv;
379 	static const size_t bufsz = 2048;
380 	char *buff;
381 	int desc = 0;
382 	ssize_t ret;
383 
384 	buff = kmalloc(bufsz, GFP_KERNEL);
385 	if (!buff)
386 		return -ENOMEM;
387 
388 	mutex_lock(&mvm->mutex);
389 
390 	desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
391 			  lq_sta->pers.sta_id);
392 	desc += scnprintf(buff + desc, bufsz - desc,
393 			  "fixed rate 0x%X\n",
394 			  lq_sta->pers.dbg_fixed_rate);
395 	desc += scnprintf(buff + desc, bufsz - desc,
396 			  "A-MPDU size limit %d\n",
397 			  lq_sta->pers.dbg_agg_frame_count_lim);
398 	desc += scnprintf(buff + desc, bufsz - desc,
399 			  "valid_tx_ant %s%s\n",
400 		(iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
401 		(iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "");
402 	desc += scnprintf(buff + desc, bufsz - desc,
403 			  "last tx rate=0x%X ",
404 			  lq_sta->last_rate_n_flags);
405 
406 	desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
407 				     lq_sta->last_rate_n_flags);
408 	if (desc < bufsz - 1)
409 		buff[desc++] = '\n';
410 	mutex_unlock(&mvm->mutex);
411 
412 	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
413 	kfree(buff);
414 	return ret;
415 }
416 
417 static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
418 					 char *buf, size_t count,
419 					 loff_t *ppos)
420 {
421 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
422 	int i;
423 	u16 amsdu_len;
424 
425 	if (kstrtou16(buf, 0, &amsdu_len))
426 		return -EINVAL;
427 
428 	/* only change from debug set <-> debug unset */
429 	if (amsdu_len && mvmsta->orig_amsdu_len)
430 		return -EBUSY;
431 
432 	if (amsdu_len) {
433 		mvmsta->orig_amsdu_len = sta->max_amsdu_len;
434 		sta->max_amsdu_len = amsdu_len;
435 		for (i = 0; i < ARRAY_SIZE(sta->max_tid_amsdu_len); i++)
436 			sta->max_tid_amsdu_len[i] = amsdu_len;
437 	} else {
438 		sta->max_amsdu_len = mvmsta->orig_amsdu_len;
439 		mvmsta->orig_amsdu_len = 0;
440 	}
441 	return count;
442 }
443 
444 static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file,
445 					char __user *user_buf,
446 					size_t count, loff_t *ppos)
447 {
448 	struct ieee80211_sta *sta = file->private_data;
449 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
450 
451 	char buf[32];
452 	int pos;
453 
454 	pos = scnprintf(buf, sizeof(buf), "current %d ", sta->max_amsdu_len);
455 	pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
456 			 mvmsta->orig_amsdu_len);
457 
458 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
459 }
460 
461 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
462 						char __user *user_buf,
463 						size_t count, loff_t *ppos)
464 {
465 	struct iwl_mvm *mvm = file->private_data;
466 	char buf[64];
467 	int bufsz = sizeof(buf);
468 	int pos = 0;
469 
470 	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
471 			 mvm->disable_power_off);
472 	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
473 			 mvm->disable_power_off_d3);
474 
475 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
476 }
477 
478 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
479 						 size_t count, loff_t *ppos)
480 {
481 	int ret, val;
482 
483 	if (!iwl_mvm_firmware_running(mvm))
484 		return -EIO;
485 
486 	if (!strncmp("disable_power_off_d0=", buf, 21)) {
487 		if (sscanf(buf + 21, "%d", &val) != 1)
488 			return -EINVAL;
489 		mvm->disable_power_off = val;
490 	} else if (!strncmp("disable_power_off_d3=", buf, 21)) {
491 		if (sscanf(buf + 21, "%d", &val) != 1)
492 			return -EINVAL;
493 		mvm->disable_power_off_d3 = val;
494 	} else {
495 		return -EINVAL;
496 	}
497 
498 	mutex_lock(&mvm->mutex);
499 	ret = iwl_mvm_power_update_device(mvm);
500 	mutex_unlock(&mvm->mutex);
501 
502 	return ret ?: count;
503 }
504 
505 static
506 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
507 			   int pos, int bufsz)
508 {
509 	pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
510 
511 	BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
512 	BT_MBOX_PRINT(0, LE_PROF1, false);
513 	BT_MBOX_PRINT(0, LE_PROF2, false);
514 	BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
515 	BT_MBOX_PRINT(0, CHL_SEQ_N, false);
516 	BT_MBOX_PRINT(0, INBAND_S, false);
517 	BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
518 	BT_MBOX_PRINT(0, LE_SCAN, false);
519 	BT_MBOX_PRINT(0, LE_ADV, false);
520 	BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
521 	BT_MBOX_PRINT(0, OPEN_CON_1, true);
522 
523 	pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
524 
525 	BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
526 	BT_MBOX_PRINT(1, IP_SR, false);
527 	BT_MBOX_PRINT(1, LE_MSTR, false);
528 	BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
529 	BT_MBOX_PRINT(1, MSG_TYPE, false);
530 	BT_MBOX_PRINT(1, SSN, true);
531 
532 	pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
533 
534 	BT_MBOX_PRINT(2, SNIFF_ACT, false);
535 	BT_MBOX_PRINT(2, PAG, false);
536 	BT_MBOX_PRINT(2, INQUIRY, false);
537 	BT_MBOX_PRINT(2, CONN, false);
538 	BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
539 	BT_MBOX_PRINT(2, DISC, false);
540 	BT_MBOX_PRINT(2, SCO_TX_ACT, false);
541 	BT_MBOX_PRINT(2, SCO_RX_ACT, false);
542 	BT_MBOX_PRINT(2, ESCO_RE_TX, false);
543 	BT_MBOX_PRINT(2, SCO_DURATION, true);
544 
545 	pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
546 
547 	BT_MBOX_PRINT(3, SCO_STATE, false);
548 	BT_MBOX_PRINT(3, SNIFF_STATE, false);
549 	BT_MBOX_PRINT(3, A2DP_STATE, false);
550 	BT_MBOX_PRINT(3, A2DP_SRC, false);
551 	BT_MBOX_PRINT(3, ACL_STATE, false);
552 	BT_MBOX_PRINT(3, MSTR_STATE, false);
553 	BT_MBOX_PRINT(3, OBX_STATE, false);
554 	BT_MBOX_PRINT(3, OPEN_CON_2, false);
555 	BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
556 	BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
557 	BT_MBOX_PRINT(3, INBAND_P, false);
558 	BT_MBOX_PRINT(3, MSG_TYPE_2, false);
559 	BT_MBOX_PRINT(3, SSN_2, false);
560 	BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
561 
562 	return pos;
563 }
564 
565 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
566 				       size_t count, loff_t *ppos)
567 {
568 	struct iwl_mvm *mvm = file->private_data;
569 	struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
570 	char *buf;
571 	int ret, pos = 0, bufsz = sizeof(char) * 1024;
572 
573 	buf = kmalloc(bufsz, GFP_KERNEL);
574 	if (!buf)
575 		return -ENOMEM;
576 
577 	mutex_lock(&mvm->mutex);
578 
579 	pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
580 
581 	pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n",
582 			 notif->bt_ci_compliance);
583 	pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n",
584 			 le32_to_cpu(notif->primary_ch_lut));
585 	pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n",
586 			 le32_to_cpu(notif->secondary_ch_lut));
587 	pos += scnprintf(buf + pos,
588 			 bufsz - pos, "bt_activity_grading = %d\n",
589 			 le32_to_cpu(notif->bt_activity_grading));
590 	pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
591 			 notif->rrc_status & 0xF);
592 	pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
593 			 notif->ttc_status & 0xF);
594 
595 	pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
596 			 IWL_MVM_BT_COEX_SYNC2SCO);
597 	pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
598 			 IWL_MVM_BT_COEX_MPLUT);
599 
600 	mutex_unlock(&mvm->mutex);
601 
602 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
603 	kfree(buf);
604 
605 	return ret;
606 }
607 #undef BT_MBOX_PRINT
608 
609 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
610 				     size_t count, loff_t *ppos)
611 {
612 	struct iwl_mvm *mvm = file->private_data;
613 	struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
614 	char buf[256];
615 	int bufsz = sizeof(buf);
616 	int pos = 0;
617 
618 	mutex_lock(&mvm->mutex);
619 
620 	pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n");
621 	pos += scnprintf(buf + pos, bufsz - pos,
622 			 "\tPrimary Channel Bitmap 0x%016llx\n",
623 			 le64_to_cpu(cmd->bt_primary_ci));
624 	pos += scnprintf(buf + pos, bufsz - pos,
625 			 "\tSecondary Channel Bitmap 0x%016llx\n",
626 			 le64_to_cpu(cmd->bt_secondary_ci));
627 
628 	mutex_unlock(&mvm->mutex);
629 
630 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
631 }
632 
633 static ssize_t
634 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
635 			   size_t count, loff_t *ppos)
636 {
637 	u32 bt_tx_prio;
638 
639 	if (sscanf(buf, "%u", &bt_tx_prio) != 1)
640 		return -EINVAL;
641 	if (bt_tx_prio > 4)
642 		return -EINVAL;
643 
644 	mvm->bt_tx_prio = bt_tx_prio;
645 
646 	return count;
647 }
648 
649 static ssize_t
650 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
651 			     size_t count, loff_t *ppos)
652 {
653 	static const char * const modes_str[BT_FORCE_ANT_MAX] = {
654 		[BT_FORCE_ANT_DIS] = "dis",
655 		[BT_FORCE_ANT_AUTO] = "auto",
656 		[BT_FORCE_ANT_BT] = "bt",
657 		[BT_FORCE_ANT_WIFI] = "wifi",
658 	};
659 	int ret, bt_force_ant_mode;
660 
661 	ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf);
662 	if (ret < 0)
663 		return ret;
664 
665 	bt_force_ant_mode = ret;
666 	ret = 0;
667 	mutex_lock(&mvm->mutex);
668 	if (mvm->bt_force_ant_mode == bt_force_ant_mode)
669 		goto out;
670 
671 	mvm->bt_force_ant_mode = bt_force_ant_mode;
672 	IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
673 		       modes_str[mvm->bt_force_ant_mode]);
674 
675 	if (iwl_mvm_firmware_running(mvm))
676 		ret = iwl_mvm_send_bt_init_conf(mvm);
677 	else
678 		ret = 0;
679 
680 out:
681 	mutex_unlock(&mvm->mutex);
682 	return ret ?: count;
683 }
684 
685 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
686 				     size_t count, loff_t *ppos)
687 {
688 	struct iwl_mvm *mvm = file->private_data;
689 	char *buff, *pos, *endpos;
690 	static const size_t bufsz = 1024;
691 	int ret;
692 
693 	buff = kmalloc(bufsz, GFP_KERNEL);
694 	if (!buff)
695 		return -ENOMEM;
696 
697 	pos = buff;
698 	endpos = pos + bufsz;
699 
700 	pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
701 			 mvm->trans->cfg->fw_name_pre);
702 	pos += scnprintf(pos, endpos - pos, "FW: %s\n",
703 			 mvm->fwrt.fw->human_readable);
704 	pos += scnprintf(pos, endpos - pos, "Device: %s\n",
705 			 mvm->fwrt.trans->name);
706 	pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
707 			 mvm->fwrt.dev->bus->name);
708 
709 	ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
710 	kfree(buff);
711 
712 	return ret;
713 }
714 
715 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
716 						  char __user *user_buf,
717 						  size_t count, loff_t *ppos)
718 {
719 	struct iwl_mvm *mvm = file->private_data;
720 	char *buf;
721 	size_t bufsz;
722 	int pos;
723 	ssize_t ret;
724 
725 	bufsz = mvm->fw->phy_integration_ver_len + 2;
726 	buf = kmalloc(bufsz, GFP_KERNEL);
727 	if (!buf)
728 		return -ENOMEM;
729 
730 	pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
731 			mvm->fw->phy_integration_ver);
732 
733 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
734 
735 	kfree(buf);
736 	return ret;
737 }
738 
739 #define PRINT_STATS_LE32(_struct, _memb)				\
740 			 pos += scnprintf(buf + pos, bufsz - pos,	\
741 					  fmt_table, #_memb,		\
742 					  le32_to_cpu(_struct->_memb))
743 
744 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
745 					  char __user *user_buf, size_t count,
746 					  loff_t *ppos)
747 {
748 	struct iwl_mvm *mvm = file->private_data;
749 	static const char *fmt_table = "\t%-30s %10u\n";
750 	static const char *fmt_header = "%-32s\n";
751 	int pos = 0;
752 	char *buf;
753 	int ret;
754 	size_t bufsz;
755 
756 	if (iwl_mvm_has_new_rx_stats_api(mvm))
757 		bufsz = ((sizeof(struct mvm_statistics_rx) /
758 			  sizeof(__le32)) * 43) + (4 * 33) + 1;
759 	else
760 		/* 43 = size of each data line; 33 = size of each header */
761 		bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
762 			  sizeof(__le32)) * 43) + (4 * 33) + 1;
763 
764 	buf = kzalloc(bufsz, GFP_KERNEL);
765 	if (!buf)
766 		return -ENOMEM;
767 
768 	mutex_lock(&mvm->mutex);
769 
770 	if (iwl_mvm_firmware_running(mvm))
771 		iwl_mvm_request_statistics(mvm, false);
772 
773 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
774 			 "Statistics_Rx - OFDM");
775 	if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
776 		struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
777 
778 		PRINT_STATS_LE32(ofdm, ina_cnt);
779 		PRINT_STATS_LE32(ofdm, fina_cnt);
780 		PRINT_STATS_LE32(ofdm, plcp_err);
781 		PRINT_STATS_LE32(ofdm, crc32_err);
782 		PRINT_STATS_LE32(ofdm, overrun_err);
783 		PRINT_STATS_LE32(ofdm, early_overrun_err);
784 		PRINT_STATS_LE32(ofdm, crc32_good);
785 		PRINT_STATS_LE32(ofdm, false_alarm_cnt);
786 		PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
787 		PRINT_STATS_LE32(ofdm, sfd_timeout);
788 		PRINT_STATS_LE32(ofdm, fina_timeout);
789 		PRINT_STATS_LE32(ofdm, unresponded_rts);
790 		PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
791 		PRINT_STATS_LE32(ofdm, sent_ack_cnt);
792 		PRINT_STATS_LE32(ofdm, sent_cts_cnt);
793 		PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
794 		PRINT_STATS_LE32(ofdm, dsp_self_kill);
795 		PRINT_STATS_LE32(ofdm, mh_format_err);
796 		PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
797 		PRINT_STATS_LE32(ofdm, reserved);
798 	} else {
799 		struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
800 
801 		PRINT_STATS_LE32(ofdm, unresponded_rts);
802 		PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
803 		PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
804 		PRINT_STATS_LE32(ofdm, dsp_self_kill);
805 		PRINT_STATS_LE32(ofdm, reserved);
806 	}
807 
808 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
809 			 "Statistics_Rx - CCK");
810 	if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
811 		struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
812 
813 		PRINT_STATS_LE32(cck, ina_cnt);
814 		PRINT_STATS_LE32(cck, fina_cnt);
815 		PRINT_STATS_LE32(cck, plcp_err);
816 		PRINT_STATS_LE32(cck, crc32_err);
817 		PRINT_STATS_LE32(cck, overrun_err);
818 		PRINT_STATS_LE32(cck, early_overrun_err);
819 		PRINT_STATS_LE32(cck, crc32_good);
820 		PRINT_STATS_LE32(cck, false_alarm_cnt);
821 		PRINT_STATS_LE32(cck, fina_sync_err_cnt);
822 		PRINT_STATS_LE32(cck, sfd_timeout);
823 		PRINT_STATS_LE32(cck, fina_timeout);
824 		PRINT_STATS_LE32(cck, unresponded_rts);
825 		PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
826 		PRINT_STATS_LE32(cck, sent_ack_cnt);
827 		PRINT_STATS_LE32(cck, sent_cts_cnt);
828 		PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
829 		PRINT_STATS_LE32(cck, dsp_self_kill);
830 		PRINT_STATS_LE32(cck, mh_format_err);
831 		PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
832 		PRINT_STATS_LE32(cck, reserved);
833 	} else {
834 		struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
835 
836 		PRINT_STATS_LE32(cck, unresponded_rts);
837 		PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
838 		PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
839 		PRINT_STATS_LE32(cck, dsp_self_kill);
840 		PRINT_STATS_LE32(cck, reserved);
841 	}
842 
843 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
844 			 "Statistics_Rx - GENERAL");
845 	if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
846 		struct mvm_statistics_rx_non_phy_v3 *general =
847 			&mvm->rx_stats_v3.general;
848 
849 		PRINT_STATS_LE32(general, bogus_cts);
850 		PRINT_STATS_LE32(general, bogus_ack);
851 		PRINT_STATS_LE32(general, non_bssid_frames);
852 		PRINT_STATS_LE32(general, filtered_frames);
853 		PRINT_STATS_LE32(general, non_channel_beacons);
854 		PRINT_STATS_LE32(general, channel_beacons);
855 		PRINT_STATS_LE32(general, num_missed_bcon);
856 		PRINT_STATS_LE32(general, adc_rx_saturation_time);
857 		PRINT_STATS_LE32(general, ina_detection_search_time);
858 		PRINT_STATS_LE32(general, beacon_silence_rssi_a);
859 		PRINT_STATS_LE32(general, beacon_silence_rssi_b);
860 		PRINT_STATS_LE32(general, beacon_silence_rssi_c);
861 		PRINT_STATS_LE32(general, interference_data_flag);
862 		PRINT_STATS_LE32(general, channel_load);
863 		PRINT_STATS_LE32(general, dsp_false_alarms);
864 		PRINT_STATS_LE32(general, beacon_rssi_a);
865 		PRINT_STATS_LE32(general, beacon_rssi_b);
866 		PRINT_STATS_LE32(general, beacon_rssi_c);
867 		PRINT_STATS_LE32(general, beacon_energy_a);
868 		PRINT_STATS_LE32(general, beacon_energy_b);
869 		PRINT_STATS_LE32(general, beacon_energy_c);
870 		PRINT_STATS_LE32(general, num_bt_kills);
871 		PRINT_STATS_LE32(general, mac_id);
872 		PRINT_STATS_LE32(general, directed_data_mpdu);
873 	} else {
874 		struct mvm_statistics_rx_non_phy *general =
875 			&mvm->rx_stats.general;
876 
877 		PRINT_STATS_LE32(general, bogus_cts);
878 		PRINT_STATS_LE32(general, bogus_ack);
879 		PRINT_STATS_LE32(general, non_channel_beacons);
880 		PRINT_STATS_LE32(general, channel_beacons);
881 		PRINT_STATS_LE32(general, num_missed_bcon);
882 		PRINT_STATS_LE32(general, adc_rx_saturation_time);
883 		PRINT_STATS_LE32(general, ina_detection_search_time);
884 		PRINT_STATS_LE32(general, beacon_silence_rssi_a);
885 		PRINT_STATS_LE32(general, beacon_silence_rssi_b);
886 		PRINT_STATS_LE32(general, beacon_silence_rssi_c);
887 		PRINT_STATS_LE32(general, interference_data_flag);
888 		PRINT_STATS_LE32(general, channel_load);
889 		PRINT_STATS_LE32(general, beacon_rssi_a);
890 		PRINT_STATS_LE32(general, beacon_rssi_b);
891 		PRINT_STATS_LE32(general, beacon_rssi_c);
892 		PRINT_STATS_LE32(general, beacon_energy_a);
893 		PRINT_STATS_LE32(general, beacon_energy_b);
894 		PRINT_STATS_LE32(general, beacon_energy_c);
895 		PRINT_STATS_LE32(general, num_bt_kills);
896 		PRINT_STATS_LE32(general, mac_id);
897 	}
898 
899 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
900 			 "Statistics_Rx - HT");
901 	if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
902 		struct mvm_statistics_rx_ht_phy_v1 *ht =
903 			&mvm->rx_stats_v3.ofdm_ht;
904 
905 		PRINT_STATS_LE32(ht, plcp_err);
906 		PRINT_STATS_LE32(ht, overrun_err);
907 		PRINT_STATS_LE32(ht, early_overrun_err);
908 		PRINT_STATS_LE32(ht, crc32_good);
909 		PRINT_STATS_LE32(ht, crc32_err);
910 		PRINT_STATS_LE32(ht, mh_format_err);
911 		PRINT_STATS_LE32(ht, agg_crc32_good);
912 		PRINT_STATS_LE32(ht, agg_mpdu_cnt);
913 		PRINT_STATS_LE32(ht, agg_cnt);
914 		PRINT_STATS_LE32(ht, unsupport_mcs);
915 	} else {
916 		struct mvm_statistics_rx_ht_phy *ht =
917 			&mvm->rx_stats.ofdm_ht;
918 
919 		PRINT_STATS_LE32(ht, mh_format_err);
920 		PRINT_STATS_LE32(ht, agg_mpdu_cnt);
921 		PRINT_STATS_LE32(ht, agg_cnt);
922 		PRINT_STATS_LE32(ht, unsupport_mcs);
923 	}
924 
925 	mutex_unlock(&mvm->mutex);
926 
927 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
928 	kfree(buf);
929 
930 	return ret;
931 }
932 #undef PRINT_STAT_LE32
933 
934 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
935 					  char __user *user_buf, size_t count,
936 					  loff_t *ppos,
937 					  struct iwl_mvm_frame_stats *stats)
938 {
939 	char *buff, *pos, *endpos;
940 	int idx, i;
941 	int ret;
942 	static const size_t bufsz = 1024;
943 
944 	buff = kmalloc(bufsz, GFP_KERNEL);
945 	if (!buff)
946 		return -ENOMEM;
947 
948 	spin_lock_bh(&mvm->drv_stats_lock);
949 
950 	pos = buff;
951 	endpos = pos + bufsz;
952 
953 	pos += scnprintf(pos, endpos - pos,
954 			 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
955 			 stats->legacy_frames,
956 			 stats->ht_frames,
957 			 stats->vht_frames);
958 	pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
959 			 stats->bw_20_frames,
960 			 stats->bw_40_frames,
961 			 stats->bw_80_frames);
962 	pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
963 			 stats->ngi_frames,
964 			 stats->sgi_frames);
965 	pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
966 			 stats->siso_frames,
967 			 stats->mimo2_frames);
968 	pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
969 			 stats->fail_frames,
970 			 stats->success_frames);
971 	pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
972 			 stats->agg_frames);
973 	pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
974 			 stats->ampdu_count);
975 	pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
976 			 stats->ampdu_count > 0 ?
977 			 (stats->agg_frames / stats->ampdu_count) : 0);
978 
979 	pos += scnprintf(pos, endpos - pos, "Last Rates\n");
980 
981 	idx = stats->last_frame_idx - 1;
982 	for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
983 		idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
984 		if (stats->last_rates[idx] == 0)
985 			continue;
986 		pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
987 				 (int)(ARRAY_SIZE(stats->last_rates) - i));
988 		pos += rs_pretty_print_rate_v1(pos, endpos - pos,
989 					       stats->last_rates[idx]);
990 		if (pos < endpos - 1)
991 			*pos++ = '\n';
992 	}
993 	spin_unlock_bh(&mvm->drv_stats_lock);
994 
995 	ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
996 	kfree(buff);
997 
998 	return ret;
999 }
1000 
1001 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
1002 					   char __user *user_buf, size_t count,
1003 					   loff_t *ppos)
1004 {
1005 	struct iwl_mvm *mvm = file->private_data;
1006 
1007 	return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
1008 					  &mvm->drv_rx_stats);
1009 }
1010 
1011 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1012 					  size_t count, loff_t *ppos)
1013 {
1014 	int __maybe_unused ret;
1015 
1016 	if (!iwl_mvm_firmware_running(mvm))
1017 		return -EIO;
1018 
1019 	mutex_lock(&mvm->mutex);
1020 
1021 	/* allow one more restart that we're provoking here */
1022 	if (mvm->fw_restart >= 0)
1023 		mvm->fw_restart++;
1024 
1025 	if (count == 6 && !strcmp(buf, "nolog\n")) {
1026 		set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1027 		set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
1028 	}
1029 
1030 	/* take the return value to make compiler happy - it will fail anyway */
1031 	ret = iwl_mvm_send_cmd_pdu(mvm,
1032 				   WIDE_ID(LONG_GROUP, REPLY_ERROR),
1033 				   0, 0, NULL);
1034 
1035 	mutex_unlock(&mvm->mutex);
1036 
1037 	return count;
1038 }
1039 
1040 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1041 				      size_t count, loff_t *ppos)
1042 {
1043 	if (!iwl_mvm_firmware_running(mvm))
1044 		return -EIO;
1045 
1046 	if (count == 6 && !strcmp(buf, "nolog\n"))
1047 		set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1048 
1049 	iwl_force_nmi(mvm->trans);
1050 
1051 	return count;
1052 }
1053 
1054 static ssize_t
1055 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1056 				char __user *user_buf,
1057 				size_t count, loff_t *ppos)
1058 {
1059 	struct iwl_mvm *mvm = file->private_data;
1060 	int pos = 0;
1061 	char buf[32];
1062 	const size_t bufsz = sizeof(buf);
1063 
1064 	/* print which antennas were set for the scan command by the user */
1065 	pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1066 	if (mvm->scan_rx_ant & ANT_A)
1067 		pos += scnprintf(buf + pos, bufsz - pos, "A");
1068 	if (mvm->scan_rx_ant & ANT_B)
1069 		pos += scnprintf(buf + pos, bufsz - pos, "B");
1070 	pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
1071 
1072 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1073 }
1074 
1075 static ssize_t
1076 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1077 				 size_t count, loff_t *ppos)
1078 {
1079 	u8 scan_rx_ant;
1080 
1081 	if (!iwl_mvm_firmware_running(mvm))
1082 		return -EIO;
1083 
1084 	if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1085 		return -EINVAL;
1086 	if (scan_rx_ant > ANT_ABC)
1087 		return -EINVAL;
1088 	if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1089 		return -EINVAL;
1090 
1091 	if (mvm->scan_rx_ant != scan_rx_ant) {
1092 		mvm->scan_rx_ant = scan_rx_ant;
1093 		if (fw_has_capa(&mvm->fw->ucode_capa,
1094 				IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1095 			iwl_mvm_config_scan(mvm);
1096 	}
1097 
1098 	return count;
1099 }
1100 
1101 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1102 					       char *buf, size_t count,
1103 					       loff_t *ppos)
1104 {
1105 	struct iwl_rss_config_cmd cmd = {
1106 		.flags = cpu_to_le32(IWL_RSS_ENABLE),
1107 		.hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1108 			     IWL_RSS_HASH_TYPE_IPV4_UDP |
1109 			     IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1110 			     IWL_RSS_HASH_TYPE_IPV6_TCP |
1111 			     IWL_RSS_HASH_TYPE_IPV6_UDP |
1112 			     IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1113 	};
1114 	int ret, i, num_repeats, nbytes = count / 2;
1115 
1116 	ret = hex2bin(cmd.indirection_table, buf, nbytes);
1117 	if (ret)
1118 		return ret;
1119 
1120 	/*
1121 	 * The input is the redirection table, partial or full.
1122 	 * Repeat the pattern if needed.
1123 	 * For example, input of 01020F will be repeated 42 times,
1124 	 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1125 	 * queues 3 - 14).
1126 	 */
1127 	num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1128 	for (i = 1; i < num_repeats; i++)
1129 		memcpy(&cmd.indirection_table[i * nbytes],
1130 		       cmd.indirection_table, nbytes);
1131 	/* handle cut in the middle pattern for the last places */
1132 	memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1133 	       ARRAY_SIZE(cmd.indirection_table) % nbytes);
1134 
1135 	netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1136 
1137 	mutex_lock(&mvm->mutex);
1138 	if (iwl_mvm_firmware_running(mvm))
1139 		ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1140 					   sizeof(cmd), &cmd);
1141 	else
1142 		ret = 0;
1143 	mutex_unlock(&mvm->mutex);
1144 
1145 	return ret ?: count;
1146 }
1147 
1148 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1149 					     char *buf, size_t count,
1150 					     loff_t *ppos)
1151 {
1152 	struct iwl_op_mode *opmode = container_of((void *)mvm,
1153 						  struct iwl_op_mode,
1154 						  op_mode_specific);
1155 	struct iwl_rx_cmd_buffer rxb = {
1156 		._rx_page_order = 0,
1157 		.truesize = 0, /* not used */
1158 		._offset = 0,
1159 	};
1160 	struct iwl_rx_packet *pkt;
1161 	int bin_len = count / 2;
1162 	int ret = -EINVAL;
1163 
1164 	if (!iwl_mvm_firmware_running(mvm))
1165 		return -EIO;
1166 
1167 	/* supporting only MQ RX */
1168 	if (!mvm->trans->trans_cfg->mq_rx_supported)
1169 		return -ENOTSUPP;
1170 
1171 	rxb._page = alloc_pages(GFP_ATOMIC, 0);
1172 	if (!rxb._page)
1173 		return -ENOMEM;
1174 	pkt = rxb_addr(&rxb);
1175 
1176 	ret = hex2bin(page_address(rxb._page), buf, bin_len);
1177 	if (ret)
1178 		goto out;
1179 
1180 	/* avoid invalid memory access and malformed packet */
1181 	if (bin_len < sizeof(*pkt) ||
1182 	    bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
1183 		goto out;
1184 
1185 	local_bh_disable();
1186 	iwl_mvm_rx_mq(opmode, NULL, &rxb);
1187 	local_bh_enable();
1188 	ret = 0;
1189 
1190 out:
1191 	iwl_free_rxb(&rxb);
1192 
1193 	return ret ?: count;
1194 }
1195 
1196 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1197 {
1198 	struct ieee80211_vif *vif;
1199 	struct iwl_mvm_vif *mvmvif;
1200 	struct sk_buff *beacon;
1201 	struct ieee80211_tx_info *info;
1202 	struct iwl_mac_beacon_cmd beacon_cmd = {};
1203 	u8 rate;
1204 	int i;
1205 
1206 	len /= 2;
1207 
1208 	/* Element len should be represented by u8 */
1209 	if (len >= U8_MAX)
1210 		return -EINVAL;
1211 
1212 	if (!iwl_mvm_firmware_running(mvm))
1213 		return -EIO;
1214 
1215 	if (!iwl_mvm_has_new_tx_api(mvm) &&
1216 	    !fw_has_api(&mvm->fw->ucode_capa,
1217 			IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1218 		return -EINVAL;
1219 
1220 	mutex_lock(&mvm->mutex);
1221 
1222 	for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1223 		vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1224 		if (!vif)
1225 			continue;
1226 
1227 		if (vif->type == NL80211_IFTYPE_AP)
1228 			break;
1229 	}
1230 
1231 	if (i == NUM_MAC_INDEX_DRIVER || !vif)
1232 		goto out_err;
1233 
1234 	mvm->hw->extra_beacon_tailroom = len;
1235 
1236 	beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL);
1237 	if (!beacon)
1238 		goto out_err;
1239 
1240 	if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1241 		dev_kfree_skb(beacon);
1242 		goto out_err;
1243 	}
1244 
1245 	mvm->beacon_inject_active = true;
1246 
1247 	mvmvif = iwl_mvm_vif_from_mac80211(vif);
1248 	info = IEEE80211_SKB_CB(beacon);
1249 	rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif);
1250 
1251 	beacon_cmd.flags =
1252 		cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate));
1253 	beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1254 	beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
1255 
1256 	iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1257 				 &beacon_cmd.tim_size,
1258 				 beacon->data, beacon->len);
1259 
1260 	iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1261 					 sizeof(beacon_cmd));
1262 	mutex_unlock(&mvm->mutex);
1263 
1264 	dev_kfree_skb(beacon);
1265 
1266 	return 0;
1267 
1268 out_err:
1269 	mutex_unlock(&mvm->mutex);
1270 	return -EINVAL;
1271 }
1272 
1273 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1274 						char *buf, size_t count,
1275 						loff_t *ppos)
1276 {
1277 	int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1278 
1279 	mvm->hw->extra_beacon_tailroom = 0;
1280 	return ret ?: count;
1281 }
1282 
1283 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1284 							char *buf,
1285 							size_t count,
1286 							loff_t *ppos)
1287 {
1288 	int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1289 
1290 	mvm->hw->extra_beacon_tailroom = 0;
1291 	mvm->beacon_inject_active = false;
1292 	return ret ?: count;
1293 }
1294 
1295 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1296 					  char __user *user_buf,
1297 					  size_t count, loff_t *ppos)
1298 {
1299 	struct iwl_mvm *mvm = file->private_data;
1300 	int conf;
1301 	char buf[8];
1302 	const size_t bufsz = sizeof(buf);
1303 	int pos = 0;
1304 
1305 	mutex_lock(&mvm->mutex);
1306 	conf = mvm->fwrt.dump.conf;
1307 	mutex_unlock(&mvm->mutex);
1308 
1309 	pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1310 
1311 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1312 }
1313 
1314 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1315 					   char *buf, size_t count,
1316 					   loff_t *ppos)
1317 {
1318 	unsigned int conf_id;
1319 	int ret;
1320 
1321 	if (!iwl_mvm_firmware_running(mvm))
1322 		return -EIO;
1323 
1324 	ret = kstrtouint(buf, 0, &conf_id);
1325 	if (ret)
1326 		return ret;
1327 
1328 	if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1329 		return -EINVAL;
1330 
1331 	mutex_lock(&mvm->mutex);
1332 	ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1333 	mutex_unlock(&mvm->mutex);
1334 
1335 	return ret ?: count;
1336 }
1337 
1338 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1339 					      char *buf, size_t count,
1340 					      loff_t *ppos)
1341 {
1342 	if (count == 0)
1343 		return 0;
1344 
1345 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1346 			       NULL);
1347 
1348 	iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1349 			   (count - 1), NULL);
1350 
1351 	return count;
1352 }
1353 
1354 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
1355 					      char *buf, size_t count,
1356 					      loff_t *ppos)
1357 {
1358 	u32 timepoint;
1359 
1360 	if (kstrtou32(buf, 0, &timepoint))
1361 		return -EINVAL;
1362 
1363 	if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
1364 	    timepoint >= IWL_FW_INI_TIME_POINT_NUM)
1365 		return -EINVAL;
1366 
1367 	iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
1368 
1369 	return count;
1370 }
1371 
1372 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1373 	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1374 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1375 	_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1376 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {	\
1377 		debugfs_create_file(alias, mode, parent, mvm,		\
1378 				    &iwl_dbgfs_##name##_ops);		\
1379 	} while (0)
1380 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1381 	MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1382 
1383 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
1384 	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1385 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
1386 	_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
1387 
1388 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do {	\
1389 		debugfs_create_file(alias, mode, parent, sta,		\
1390 				    &iwl_dbgfs_##name##_ops);		\
1391 	} while (0)
1392 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
1393 	MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
1394 
1395 static ssize_t
1396 iwl_dbgfs_prph_reg_read(struct file *file,
1397 			char __user *user_buf,
1398 			size_t count, loff_t *ppos)
1399 {
1400 	struct iwl_mvm *mvm = file->private_data;
1401 	int pos = 0;
1402 	char buf[32];
1403 	const size_t bufsz = sizeof(buf);
1404 
1405 	if (!mvm->dbgfs_prph_reg_addr)
1406 		return -EINVAL;
1407 
1408 	pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1409 		mvm->dbgfs_prph_reg_addr,
1410 		iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1411 
1412 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1413 }
1414 
1415 static ssize_t
1416 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1417 			 size_t count, loff_t *ppos)
1418 {
1419 	u8 args;
1420 	u32 value;
1421 
1422 	args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1423 	/* if we only want to set the reg address - nothing more to do */
1424 	if (args == 1)
1425 		goto out;
1426 
1427 	/* otherwise, make sure we have both address and value */
1428 	if (args != 2)
1429 		return -EINVAL;
1430 
1431 	iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1432 
1433 out:
1434 	return count;
1435 }
1436 
1437 static ssize_t
1438 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1439 			      size_t count, loff_t *ppos)
1440 {
1441 	int ret;
1442 
1443 	if (!iwl_mvm_firmware_running(mvm))
1444 		return -EIO;
1445 
1446 	mutex_lock(&mvm->mutex);
1447 	ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1448 	mutex_unlock(&mvm->mutex);
1449 
1450 	return ret ?: count;
1451 }
1452 
1453 struct iwl_mvm_sniffer_apply {
1454 	struct iwl_mvm *mvm;
1455 	u8 *bssid;
1456 	u16 aid;
1457 };
1458 
1459 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1460 				  struct iwl_rx_packet *pkt, void *data)
1461 {
1462 	struct iwl_mvm_sniffer_apply *apply = data;
1463 
1464 	apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1465 	memcpy(apply->mvm->cur_bssid, apply->bssid,
1466 	       sizeof(apply->mvm->cur_bssid));
1467 
1468 	return true;
1469 }
1470 
1471 static ssize_t
1472 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1473 				  size_t count, loff_t *ppos)
1474 {
1475 	struct iwl_notification_wait wait;
1476 	struct iwl_he_monitor_cmd he_mon_cmd = {};
1477 	struct iwl_mvm_sniffer_apply apply = {
1478 		.mvm = mvm,
1479 	};
1480 	u16 wait_cmds[] = {
1481 		WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1482 	};
1483 	u32 aid;
1484 	int ret;
1485 
1486 	if (!iwl_mvm_firmware_running(mvm))
1487 		return -EIO;
1488 
1489 	ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1490 		     &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1491 		     &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1492 		     &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1493 	if (ret != 7)
1494 		return -EINVAL;
1495 
1496 	he_mon_cmd.aid = cpu_to_le16(aid);
1497 
1498 	apply.aid = aid;
1499 	apply.bssid = (void *)he_mon_cmd.bssid;
1500 
1501 	mutex_lock(&mvm->mutex);
1502 
1503 	/*
1504 	 * Use the notification waiter to get our function triggered
1505 	 * in sequence with other RX. This ensures that frames we get
1506 	 * on the RX queue _before_ the new configuration is applied
1507 	 * still have mvm->cur_aid pointing to the old AID, and that
1508 	 * frames on the RX queue _after_ the firmware processed the
1509 	 * new configuration (and sent the response, synchronously)
1510 	 * get mvm->cur_aid correctly set to the new AID.
1511 	 */
1512 	iwl_init_notification_wait(&mvm->notif_wait, &wait,
1513 				   wait_cmds, ARRAY_SIZE(wait_cmds),
1514 				   iwl_mvm_sniffer_apply, &apply);
1515 
1516 	ret = iwl_mvm_send_cmd_pdu(mvm,
1517 				   WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1518 				   0,
1519 				   sizeof(he_mon_cmd), &he_mon_cmd);
1520 
1521 	/* no need to really wait, we already did anyway */
1522 	iwl_remove_notification(&mvm->notif_wait, &wait);
1523 
1524 	mutex_unlock(&mvm->mutex);
1525 
1526 	return ret ?: count;
1527 }
1528 
1529 static ssize_t
1530 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
1531 				 size_t count, loff_t *ppos)
1532 {
1533 	struct iwl_mvm *mvm = file->private_data;
1534 	u8 buf[32];
1535 	int len;
1536 
1537 	len = scnprintf(buf, sizeof(buf),
1538 			"%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
1539 			le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
1540 			mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
1541 			mvm->cur_bssid[4], mvm->cur_bssid[5]);
1542 
1543 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1544 }
1545 
1546 static ssize_t
1547 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1548 				  size_t count, loff_t *ppos)
1549 {
1550 	struct iwl_mvm *mvm = file->private_data;
1551 	u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1552 	unsigned int pos = 0;
1553 	size_t bufsz = sizeof(buf);
1554 	int i;
1555 
1556 	mutex_lock(&mvm->mutex);
1557 
1558 	for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1559 		pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1560 				 mvm->uapsd_noagg_bssids[i].addr);
1561 
1562 	mutex_unlock(&mvm->mutex);
1563 
1564 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1565 }
1566 
1567 static ssize_t
1568 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
1569 			   char *buf, size_t count, loff_t *ppos)
1570 {
1571 	int ret;
1572 	struct iwl_ltr_config_cmd ltr_config = {0};
1573 
1574 	if (!iwl_mvm_firmware_running(mvm))
1575 		return -EIO;
1576 
1577 	if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
1578 		   &ltr_config.flags,
1579 		   &ltr_config.static_long,
1580 		   &ltr_config.static_short,
1581 		   &ltr_config.ltr_cfg_values[0],
1582 		   &ltr_config.ltr_cfg_values[1],
1583 		   &ltr_config.ltr_cfg_values[2],
1584 		   &ltr_config.ltr_cfg_values[3]) != 7) {
1585 		return -EINVAL;
1586 	}
1587 
1588 	mutex_lock(&mvm->mutex);
1589 	ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
1590 				   &ltr_config);
1591 	mutex_unlock(&mvm->mutex);
1592 
1593 	if (ret)
1594 		IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
1595 
1596 	return ret ?: count;
1597 }
1598 
1599 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
1600 					      size_t count, loff_t *ppos)
1601 {
1602 	int ret = 0;
1603 	u16 op_id;
1604 
1605 	if (kstrtou16(buf, 10, &op_id))
1606 		return -EINVAL;
1607 
1608 	/* value zero triggers re-sending the default table to the device */
1609 	if (!op_id) {
1610 		mutex_lock(&mvm->mutex);
1611 		ret = iwl_rfi_send_config_cmd(mvm, NULL);
1612 		mutex_unlock(&mvm->mutex);
1613 	} else {
1614 		ret = -EOPNOTSUPP; /* in the future a new table will be added */
1615 	}
1616 
1617 	return ret ?: count;
1618 }
1619 
1620 /* The size computation is as follows:
1621  * each number needs at most 3 characters, number of rows is the size of
1622  * the table; So, need 5 chars for the "freq: " part and each tuple afterwards
1623  * needs 6 characters for numbers and 5 for the punctuation around.
1624  */
1625 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
1626 				(5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
1627 
1628 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
1629 					     char __user *user_buf,
1630 					     size_t count, loff_t *ppos)
1631 {
1632 	struct iwl_mvm *mvm = file->private_data;
1633 	struct iwl_rfi_freq_table_resp_cmd *resp;
1634 	u32 status;
1635 	char buf[IWL_RFI_BUF_SIZE];
1636 	int i, j, pos = 0;
1637 
1638 	resp = iwl_rfi_get_freq_table(mvm);
1639 	if (IS_ERR(resp))
1640 		return PTR_ERR(resp);
1641 
1642 	status = le32_to_cpu(resp->status);
1643 	if (status != RFI_FREQ_TABLE_OK) {
1644 		scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
1645 		goto out;
1646 	}
1647 
1648 	for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
1649 		pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
1650 				 resp->table[i].freq);
1651 
1652 		for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
1653 			pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
1654 					 "(%d, %d) ",
1655 					 resp->table[i].channels[j],
1656 					 resp->table[i].bands[j]);
1657 		pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
1658 	}
1659 
1660 out:
1661 	kfree(resp);
1662 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1663 }
1664 
1665 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1666 
1667 /* Device wide debugfs entries */
1668 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1669 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1670 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1671 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1672 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1673 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1674 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1675 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1676 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1677 MVM_DEBUGFS_READ_FILE_OPS(stations);
1678 MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1679 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1680 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1681 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1682 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1683 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1684 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1685 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
1686 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1687 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1688 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1689 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1690 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1691 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1692 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1693 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
1694 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1695 			   (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1696 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1697 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1698 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1699 
1700 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1701 
1702 #ifdef CONFIG_ACPI
1703 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1704 #endif
1705 
1706 MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
1707 
1708 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
1709 
1710 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
1711 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
1712 
1713 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1714 				  size_t count, loff_t *ppos)
1715 {
1716 	struct iwl_mvm *mvm = file->private_data;
1717 	struct iwl_dbg_mem_access_cmd cmd = {};
1718 	struct iwl_dbg_mem_access_rsp *rsp;
1719 	struct iwl_host_cmd hcmd = {
1720 		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1721 		.data = { &cmd, },
1722 		.len = { sizeof(cmd) },
1723 	};
1724 	size_t delta;
1725 	ssize_t ret, len;
1726 
1727 	if (!iwl_mvm_firmware_running(mvm))
1728 		return -EIO;
1729 
1730 	hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
1731 	cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
1732 
1733 	/* Take care of alignment of both the position and the length */
1734 	delta = *ppos & 0x3;
1735 	cmd.addr = cpu_to_le32(*ppos - delta);
1736 	cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
1737 				  (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
1738 
1739 	mutex_lock(&mvm->mutex);
1740 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
1741 	mutex_unlock(&mvm->mutex);
1742 
1743 	if (ret < 0)
1744 		return ret;
1745 
1746 	rsp = (void *)hcmd.resp_pkt->data;
1747 	if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
1748 		ret = -ENXIO;
1749 		goto out;
1750 	}
1751 
1752 	len = min((size_t)le32_to_cpu(rsp->len) << 2,
1753 		  iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
1754 	len = min(len - delta, count);
1755 	if (len < 0) {
1756 		ret = -EFAULT;
1757 		goto out;
1758 	}
1759 
1760 	ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
1761 	*ppos += ret;
1762 
1763 out:
1764 	iwl_free_resp(&hcmd);
1765 	return ret;
1766 }
1767 
1768 static ssize_t iwl_dbgfs_mem_write(struct file *file,
1769 				   const char __user *user_buf, size_t count,
1770 				   loff_t *ppos)
1771 {
1772 	struct iwl_mvm *mvm = file->private_data;
1773 	struct iwl_dbg_mem_access_cmd *cmd;
1774 	struct iwl_dbg_mem_access_rsp *rsp;
1775 	struct iwl_host_cmd hcmd = {};
1776 	size_t cmd_size;
1777 	size_t data_size;
1778 	u32 op, len;
1779 	ssize_t ret;
1780 
1781 	if (!iwl_mvm_firmware_running(mvm))
1782 		return -EIO;
1783 
1784 	hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
1785 
1786 	if (*ppos & 0x3 || count < 4) {
1787 		op = DEBUG_MEM_OP_WRITE_BYTES;
1788 		len = min(count, (size_t)(4 - (*ppos & 0x3)));
1789 		data_size = len;
1790 	} else {
1791 		op = DEBUG_MEM_OP_WRITE;
1792 		len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
1793 		data_size = len << 2;
1794 	}
1795 
1796 	cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
1797 	cmd = kzalloc(cmd_size, GFP_KERNEL);
1798 	if (!cmd)
1799 		return -ENOMEM;
1800 
1801 	cmd->op = cpu_to_le32(op);
1802 	cmd->len = cpu_to_le32(len);
1803 	cmd->addr = cpu_to_le32(*ppos);
1804 	if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
1805 		kfree(cmd);
1806 		return -EFAULT;
1807 	}
1808 
1809 	hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1810 	hcmd.data[0] = (void *)cmd;
1811 	hcmd.len[0] = cmd_size;
1812 
1813 	mutex_lock(&mvm->mutex);
1814 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
1815 	mutex_unlock(&mvm->mutex);
1816 
1817 	kfree(cmd);
1818 
1819 	if (ret < 0)
1820 		return ret;
1821 
1822 	rsp = (void *)hcmd.resp_pkt->data;
1823 	if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
1824 		ret = -ENXIO;
1825 		goto out;
1826 	}
1827 
1828 	ret = data_size;
1829 	*ppos += ret;
1830 
1831 out:
1832 	iwl_free_resp(&hcmd);
1833 	return ret;
1834 }
1835 
1836 static const struct file_operations iwl_dbgfs_mem_ops = {
1837 	.read = iwl_dbgfs_mem_read,
1838 	.write = iwl_dbgfs_mem_write,
1839 	.open = simple_open,
1840 	.llseek = default_llseek,
1841 };
1842 
1843 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
1844 			     struct ieee80211_vif *vif,
1845 			     struct ieee80211_sta *sta,
1846 			     struct dentry *dir)
1847 {
1848 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1849 
1850 	if (iwl_mvm_has_tlc_offload(mvm)) {
1851 		MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
1852 	}
1853 	MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600);
1854 }
1855 
1856 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
1857 {
1858 	struct dentry *bcast_dir __maybe_unused;
1859 
1860 	spin_lock_init(&mvm->drv_stats_lock);
1861 
1862 	MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
1863 	MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200);
1864 	MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
1865 	MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
1866 	MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
1867 	MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
1868 	MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
1869 	MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
1870 	MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
1871 	MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400);
1872 	MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400);
1873 	MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
1874 	MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
1875 	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
1876 	MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
1877 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
1878 	MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
1879 	MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200);
1880 	MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200);
1881 	MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
1882 	MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
1883 	MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
1884 	MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
1885 	MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
1886 	MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
1887 	MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
1888 	MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
1889 	MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
1890 	MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
1891 	MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
1892 
1893 	if (mvm->fw->phy_integration_ver)
1894 		MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
1895 #ifdef CONFIG_ACPI
1896 	MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
1897 #endif
1898 	MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
1899 
1900 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
1901 		MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
1902 
1903 	debugfs_create_bool("enable_scan_iteration_notif", 0600,
1904 			    mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
1905 	debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
1906 			    &mvm->drop_bcn_ap_mode);
1907 
1908 	MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
1909 
1910 #ifdef CONFIG_PM_SLEEP
1911 	MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
1912 	debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
1913 			    &mvm->d3_wake_sysassert);
1914 	debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
1915 			   &mvm->last_netdetect_scans);
1916 #endif
1917 
1918 	debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
1919 			  &mvm->ps_disabled);
1920 	debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
1921 			    &mvm->nvm_hw_blob);
1922 	debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
1923 			    &mvm->nvm_sw_blob);
1924 	debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
1925 			    &mvm->nvm_calib_blob);
1926 	debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
1927 			    &mvm->nvm_prod_blob);
1928 	debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
1929 			    &mvm->nvm_phy_sku_blob);
1930 	debugfs_create_blob("nvm_reg", S_IRUSR,
1931 			    mvm->debugfs_dir, &mvm->nvm_reg_blob);
1932 
1933 	debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
1934 			    &iwl_dbgfs_mem_ops);
1935 
1936 	/*
1937 	 * Create a symlink with mac80211. It will be removed when mac80211
1938 	 * exists (before the opmode exists which removes the target.)
1939 	 */
1940 	if (!IS_ERR(mvm->debugfs_dir)) {
1941 		char buf[100];
1942 
1943 		snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
1944 		debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
1945 				       buf);
1946 	}
1947 }
1948