1	// SPDX-License-Identifier: ISC
2	/*
3	* Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
4	* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
5	*/
6
7	#include <linux/module.h>
8	#include <linux/debugfs.h>
9	#include <linux/seq_file.h>
10	#include <linux/pci.h>
11	#include <linux/rtnetlink.h>
12	#include <linux/power_supply.h>
13	#include "wil6210.h"
14	#include "wmi.h"
15	#include "txrx.h"
16	#include "pmc.h"
17
18	/* Nasty hack. Better have per device instances */
19	static u32 mem_addr;
20	static u32 dbg_txdesc_index;
21	static u32 dbg_ring_index; /* 24+ for Rx, 0..23 for Tx */
22	static u32 dbg_status_msg_index;
23	/* 0..wil->num_rx_status_rings-1 for Rx, wil->tx_sring_idx for Tx */
24	static u32 dbg_sring_index;
25
26	enum dbg_off_type {
27	doff_u32 = 0,
28	doff_x32 = 1,
29	doff_ulong = 2,
30	doff_io32 = 3,
31	doff_u8 = 4
32	};
33
34	/* offset to "wil" */
35	struct dbg_off {
36	const char *name;
37	umode_t mode;
38	ulong off;
39	enum dbg_off_type type;
40	};
41
42	static void wil_print_desc_edma(struct seq_file *s, struct wil6210_priv *wil,
43	struct wil_ring *ring,
44	char _s, char _h, int idx)
45	{
46	u8 num_of_descs;
47	bool has_skb = false;
48
49	if (ring->is_rx) {
50	struct wil_rx_enhanced_desc *rx_d =
51	(struct wil_rx_enhanced_desc *)
52	&ring->va[idx].rx.enhanced;
53	u16 buff_id = le16_to_cpu(rx_d->mac.buff_id);
54
55	if (wil->rx_buff_mgmt.buff_arr &&
56	wil_val_in_range(val: buff_id, min: 0, max: wil->rx_buff_mgmt.size))
57	has_skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
58	seq_printf(m: s, fmt: "%c", (has_skb) ? _h : _s);
59	} else {
60	struct wil_tx_enhanced_desc *d =
61	(struct wil_tx_enhanced_desc *)
62	&ring->va[idx].tx.enhanced;
63
64	num_of_descs = (u8)d->mac.d[2];
65	has_skb = ring->ctx && ring->ctx[idx].skb;
66	if (num_of_descs >= 1)
67	seq_printf(m: s, fmt: "%c", has_skb ? _h : _s);
68	else
69	/* num_of_descs == 0, it's a frag in a list of descs */
70	seq_printf(m: s, fmt: "%c", has_skb ? 'h' : _s);
71	}
72	}
73
74	static void wil_print_ring(struct seq_file *s, struct wil6210_priv *wil,
75	const char *name, struct wil_ring *ring,
76	char _s, char _h)
77	{
78	void __iomem *x;
79	u32 v;
80
81	seq_printf(m: s, fmt: "RING %s = {\n", name);
82	seq_printf(m: s, fmt: " pa = %pad\n", &ring->pa);
83	seq_printf(m: s, fmt: " va = 0x%p\n", ring->va);
84	seq_printf(m: s, fmt: " size = %d\n", ring->size);
85	if (wil->use_enhanced_dma_hw && ring->is_rx)
86	seq_printf(m: s, fmt: " swtail = %u\n", *ring->edma_rx_swtail.va);
87	else
88	seq_printf(m: s, fmt: " swtail = %d\n", ring->swtail);
89	seq_printf(m: s, fmt: " swhead = %d\n", ring->swhead);
90	if (wil->use_enhanced_dma_hw) {
91	int ring_id = ring->is_rx ?
92	WIL_RX_DESC_RING_ID : ring - wil->ring_tx;
93	/* SUBQ_CONS is a table of 32 entries, one for each Q pair.
94	* lower 16bits are for even ring_id and upper 16bits are for
95	* odd ring_id
96	*/
97	x = wmi_addr(wil, RGF_DMA_SCM_SUBQ_CONS + 4 * (ring_id / 2));
98	v = readl_relaxed(x);
99
100	v = (ring_id % 2 ? (v >> 16) : (v & 0xffff));
101	seq_printf(m: s, fmt: " hwhead = %u\n", v);
102	}
103	seq_printf(m: s, fmt: " hwtail = [0x%08x] -> ", ring->hwtail);
104	x = wmi_addr(wil, ptr: ring->hwtail);
105	if (x) {
106	v = readl(addr: x);
107	seq_printf(m: s, fmt: "0x%08x = %d\n", v, v);
108	} else {
109	seq_puts(m: s, s: "???\n");
110	}
111
112	if (ring->va && (ring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
113	uint i;
114
115	for (i = 0; i < ring->size; i++) {
116	if ((i % 128) == 0 && i != 0)
117	seq_puts(m: s, s: "\n");
118	if (wil->use_enhanced_dma_hw) {
119	wil_print_desc_edma(s, wil, ring, _s, _h, idx: i);
120	} else {
121	volatile struct vring_tx_desc *d =
122	&ring->va[i].tx.legacy;
123	seq_printf(m: s, fmt: "%c", (d->dma.status & BIT(0)) ?
124	_s : (ring->ctx[i].skb ? _h : 'h'));
125	}
126	}
127	seq_puts(m: s, s: "\n");
128	}
129	seq_puts(m: s, s: "}\n");
130	}
131
132	static int ring_show(struct seq_file *s, void *data)
133	{
134	uint i;
135	struct wil6210_priv *wil = s->private;
136
137	wil_print_ring(s, wil, name: "rx", ring: &wil->ring_rx, s: 'S', h: '_');
138
139	for (i = 0; i < ARRAY_SIZE(wil->ring_tx); i++) {
140	struct wil_ring *ring = &wil->ring_tx[i];
141	struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i];
142
143	if (ring->va) {
144	int cid = wil->ring2cid_tid[i][0];
145	int tid = wil->ring2cid_tid[i][1];
146	u32 swhead = ring->swhead;
147	u32 swtail = ring->swtail;
148	int used = (ring->size + swhead - swtail)
149	% ring->size;
150	int avail = ring->size - used - 1;
151	char name[10];
152	char sidle[10];
153	/* performance monitoring */
154	cycles_t now = get_cycles();
155	uint64_t idle = txdata->idle * 100;
156	uint64_t total = now - txdata->begin;
157
158	if (total != 0) {
159	do_div(idle, total);
160	snprintf(buf: sidle, size: sizeof(sidle), fmt: "%3d%%",
161	(int)idle);
162	} else {
163	snprintf(buf: sidle, size: sizeof(sidle), fmt: "N/A");
164	}
165	txdata->begin = now;
166	txdata->idle = 0ULL;
167
168	snprintf(buf: name, size: sizeof(name), fmt: "tx_%2d", i);
169
170	if (cid < wil->max_assoc_sta)
171	seq_printf(m: s,
172	fmt: "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
173	wil->sta[cid].addr, cid, tid,
174	txdata->dot1x_open ? "+" : "-",
175	txdata->agg_wsize,
176	txdata->agg_timeout,
177	txdata->agg_amsdu ? "+" : "-",
178	used, avail, sidle);
179	else
180	seq_printf(m: s,
181	fmt: "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
182	txdata->dot1x_open ? "+" : "-",
183	used, avail, sidle);
184
185	wil_print_ring(s, wil, name, ring, s: '_', h: 'H');
186	}
187	}
188
189	return 0;
190	}
191	DEFINE_SHOW_ATTRIBUTE(ring);
192
193	static void wil_print_sring(struct seq_file *s, struct wil6210_priv *wil,
194	struct wil_status_ring *sring)
195	{
196	void __iomem *x;
197	int sring_idx = sring - wil->srings;
198	u32 v;
199
200	seq_printf(m: s, fmt: "Status Ring %s [ %d ] = {\n",
201	sring->is_rx ? "RX" : "TX", sring_idx);
202	seq_printf(m: s, fmt: " pa = %pad\n", &sring->pa);
203	seq_printf(m: s, fmt: " va = 0x%pK\n", sring->va);
204	seq_printf(m: s, fmt: " size = %d\n", sring->size);
205	seq_printf(m: s, fmt: " elem_size = %zu\n", sring->elem_size);
206	seq_printf(m: s, fmt: " swhead = %d\n", sring->swhead);
207	if (wil->use_enhanced_dma_hw) {
208	/* COMPQ_PROD is a table of 32 entries, one for each Q pair.
209	* lower 16bits are for even ring_id and upper 16bits are for
210	* odd ring_id
211	*/
212	x = wmi_addr(wil, RGF_DMA_SCM_COMPQ_PROD + 4 * (sring_idx / 2));
213	v = readl_relaxed(x);
214
215	v = (sring_idx % 2 ? (v >> 16) : (v & 0xffff));
216	seq_printf(m: s, fmt: " hwhead = %u\n", v);
217	}
218	seq_printf(m: s, fmt: " hwtail = [0x%08x] -> ", sring->hwtail);
219	x = wmi_addr(wil, ptr: sring->hwtail);
220	if (x) {
221	v = readl_relaxed(x);
222	seq_printf(m: s, fmt: "0x%08x = %d\n", v, v);
223	} else {
224	seq_puts(m: s, s: "???\n");
225	}
226	seq_printf(m: s, fmt: " desc_rdy_pol = %d\n", sring->desc_rdy_pol);
227	seq_printf(m: s, fmt: " invalid_buff_id_cnt = %d\n",
228	sring->invalid_buff_id_cnt);
229
230	if (sring->va && (sring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
231	uint i;
232
233	for (i = 0; i < sring->size; i++) {
234	u32 *sdword_0 =
235	(u32 *)(sring->va + (sring->elem_size * i));
236
237	if ((i % 128) == 0 && i != 0)
238	seq_puts(m: s, s: "\n");
239	if (i == sring->swhead)
240	seq_printf(m: s, fmt: "%c", (*sdword_0 & BIT(31)) ?
241	'X' : 'x');
242	else
243	seq_printf(m: s, fmt: "%c", (*sdword_0 & BIT(31)) ?
244	'1' : '0');
245	}
246	seq_puts(m: s, s: "\n");
247	}
248	seq_puts(m: s, s: "}\n");
249	}
250
251	static int srings_show(struct seq_file *s, void *data)
252	{
253	struct wil6210_priv *wil = s->private;
254	int i = 0;
255
256	for (i = 0; i < WIL6210_MAX_STATUS_RINGS; i++)
257	if (wil->srings[i].va)
258	wil_print_sring(s, wil, sring: &wil->srings[i]);
259
260	return 0;
261	}
262	DEFINE_SHOW_ATTRIBUTE(srings);
263
264	static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
265	const char *prefix)
266	{
267	seq_hex_dump(m: s, prefix_str: prefix, prefix_type: DUMP_PREFIX_NONE, rowsize: 16, groupsize: 1, buf: p, len, ascii: false);
268	}
269
270	static void wil_print_mbox_ring(struct seq_file *s, const char *prefix,
271	void __iomem *off)
272	{
273	struct wil6210_priv *wil = s->private;
274	struct wil6210_mbox_ring r;
275	int rsize;
276	uint i;
277
278	wil_halp_vote(wil);
279
280	if (wil_mem_access_lock(wil)) {
281	wil_halp_unvote(wil);
282	return;
283	}
284
285	wil_memcpy_fromio_32(dst: &r, src: off, count: sizeof(r));
286	wil_mbox_ring_le2cpus(r: &r);
287	/*
288	* we just read memory block from NIC. This memory may be
289	* garbage. Check validity before using it.
290	*/
291	rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
292
293	seq_printf(m: s, fmt: "ring %s = {\n", prefix);
294	seq_printf(m: s, fmt: " base = 0x%08x\n", r.base);
295	seq_printf(m: s, fmt: " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
296	seq_printf(m: s, fmt: " tail = 0x%08x\n", r.tail);
297	seq_printf(m: s, fmt: " head = 0x%08x\n", r.head);
298	seq_printf(m: s, fmt: " entry size = %d\n", r.entry_size);
299
300	if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
301	seq_printf(m: s, fmt: " ??? size is not multiple of %zd, garbage?\n",
302	sizeof(struct wil6210_mbox_ring_desc));
303	goto out;
304	}
305
306	if (!wmi_addr(wil, ptr: r.base) ||
307	!wmi_addr(wil, ptr: r.tail) ||
308	!wmi_addr(wil, ptr: r.head)) {
309	seq_puts(m: s, s: " ??? pointers are garbage?\n");
310	goto out;
311	}
312
313	for (i = 0; i < rsize; i++) {
314	struct wil6210_mbox_ring_desc d;
315	struct wil6210_mbox_hdr hdr;
316	size_t delta = i * sizeof(d);
317	void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
318
319	wil_memcpy_fromio_32(dst: &d, src: x, count: sizeof(d));
320
321	seq_printf(m: s, fmt: " [%2x] %s %s%s 0x%08x", i,
322	d.sync ? "F" : "E",
323	(r.tail - r.base == delta) ? "t" : " ",
324	(r.head - r.base == delta) ? "h" : " ",
325	le32_to_cpu(d.addr));
326	if (0 == wmi_read_hdr(wil, ptr: d.addr, hdr: &hdr)) {
327	u16 len = le16_to_cpu(hdr.len);
328
329	seq_printf(m: s, fmt: " -> %04x %04x %04x %02x\n",
330	le16_to_cpu(hdr.seq), len,
331	le16_to_cpu(hdr.type), hdr.flags);
332	if (len <= MAX_MBOXITEM_SIZE) {
333	unsigned char databuf[MAX_MBOXITEM_SIZE];
334	void __iomem *src = wmi_buffer(wil, ptr: d.addr) +
335	sizeof(struct wil6210_mbox_hdr);
336	/*
337	* No need to check @src for validity -
338	* we already validated @d.addr while
339	* reading header
340	*/
341	wil_memcpy_fromio_32(dst: databuf, src, count: len);
342	wil_seq_hexdump(s, p: databuf, len, prefix: " : ");
343	}
344	} else {
345	seq_puts(m: s, s: "\n");
346	}
347	}
348	out:
349	seq_puts(m: s, s: "}\n");
350	wil_mem_access_unlock(wil);
351	wil_halp_unvote(wil);
352	}
353
354	static int mbox_show(struct seq_file *s, void *data)
355	{
356	struct wil6210_priv *wil = s->private;
357	int ret;
358
359	ret = wil_pm_runtime_get(wil);
360	if (ret < 0)
361	return ret;
362
363	wil_print_mbox_ring(s, prefix: "tx", off: wil->csr + HOST_MBOX +
364	offsetof(struct wil6210_mbox_ctl, tx));
365	wil_print_mbox_ring(s, prefix: "rx", off: wil->csr + HOST_MBOX +
366	offsetof(struct wil6210_mbox_ctl, rx));
367
368	wil_pm_runtime_put(wil);
369
370	return 0;
371	}
372	DEFINE_SHOW_ATTRIBUTE(mbox);
373
374	static int wil_debugfs_iomem_x32_set(void *data, u64 val)
375	{
376	struct wil_debugfs_iomem_data *d = (struct
377	wil_debugfs_iomem_data *)data;
378	struct wil6210_priv *wil = d->wil;
379	int ret;
380
381	ret = wil_pm_runtime_get(wil);
382	if (ret < 0)
383	return ret;
384
385	writel_relaxed(val, (void __iomem *)d->offset);
386
387	wmb(); /* make sure write propagated to HW */
388
389	wil_pm_runtime_put(wil);
390
391	return 0;
392	}
393
394	static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
395	{
396	struct wil_debugfs_iomem_data *d = (struct
397	wil_debugfs_iomem_data *)data;
398	struct wil6210_priv *wil = d->wil;
399	int ret;
400
401	ret = wil_pm_runtime_get(wil);
402	if (ret < 0)
403	return ret;
404
405	*val = readl(addr: (void __iomem *)d->offset);
406
407	wil_pm_runtime_put(wil);
408
409	return 0;
410	}
411
412	DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
413	wil_debugfs_iomem_x32_set, "0x%08llx\n");
414
415	static void wil_debugfs_create_iomem_x32(const char *name, umode_t mode,
416	struct dentry *parent, void *value,
417	struct wil6210_priv *wil)
418	{
419	struct wil_debugfs_iomem_data *data = &wil->dbg_data.data_arr[
420	wil->dbg_data.iomem_data_count];
421
422	data->wil = wil;
423	data->offset = value;
424
425	debugfs_create_file_unsafe(name, mode, parent, data, fops: &fops_iomem_x32);
426	wil->dbg_data.iomem_data_count++;
427	}
428
429	static int wil_debugfs_ulong_set(void *data, u64 val)
430	{
431	*(ulong *)data = val;
432	return 0;
433	}
434
435	static int wil_debugfs_ulong_get(void *data, u64 *val)
436	{
437	*val = *(ulong *)data;
438	return 0;
439	}
440
441	DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
442	wil_debugfs_ulong_set, "0x%llx\n");
443
444	/**
445	* wil6210_debugfs_init_offset - create set of debugfs files
446	* @wil: driver's context, used for printing
447	* @dbg: directory on the debugfs, where files will be created
448	* @base: base address used in address calculation
449	* @tbl: table with file descriptions. Should be terminated with empty element.
450	*
451	* Creates files accordingly to the @tbl.
452	*/
453	static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
454	struct dentry *dbg, void *base,
455	const struct dbg_off * const tbl)
456	{
457	int i;
458
459	for (i = 0; tbl[i].name; i++) {
460	switch (tbl[i].type) {
461	case doff_u32:
462	debugfs_create_u32(name: tbl[i].name, mode: tbl[i].mode, parent: dbg,
463	value: base + tbl[i].off);
464	break;
465	case doff_x32:
466	debugfs_create_x32(name: tbl[i].name, mode: tbl[i].mode, parent: dbg,
467	value: base + tbl[i].off);
468	break;
469	case doff_ulong:
470	debugfs_create_file_unsafe(name: tbl[i].name, mode: tbl[i].mode,
471	parent: dbg, data: base + tbl[i].off,
472	fops: &wil_fops_ulong);
473	break;
474	case doff_io32:
475	wil_debugfs_create_iomem_x32(name: tbl[i].name, mode: tbl[i].mode,
476	parent: dbg, value: base + tbl[i].off,
477	wil);
478	break;
479	case doff_u8:
480	debugfs_create_u8(name: tbl[i].name, mode: tbl[i].mode, parent: dbg,
481	value: base + tbl[i].off);
482	break;
483	}
484	}
485	}
486
487	static const struct dbg_off isr_off[] = {
488	{"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32},
489	{"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32},
490	{"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32},
491	{"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32},
492	{"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32},
493	{"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32},
494	{"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32},
495	{},
496	};
497
498	static void wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
499	const char *name, struct dentry *parent,
500	u32 off)
501	{
502	struct dentry *d = debugfs_create_dir(name, parent);
503
504	wil6210_debugfs_init_offset(wil, dbg: d, base: (void * __force)wil->csr + off,
505	tbl: isr_off);
506	}
507
508	static const struct dbg_off pseudo_isr_off[] = {
509	{"CAUSE", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
510	{"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
511	{"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
512	{},
513	};
514
515	static void wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
516	struct dentry *parent)
517	{
518	struct dentry *d = debugfs_create_dir(name: "PSEUDO_ISR", parent);
519
520	wil6210_debugfs_init_offset(wil, dbg: d, base: (void * __force)wil->csr,
521	tbl: pseudo_isr_off);
522	}
523
524	static const struct dbg_off lgc_itr_cnt_off[] = {
525	{"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
526	{"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
527	{"CTL", 0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
528	{},
529	};
530
531	static const struct dbg_off tx_itr_cnt_off[] = {
532	{"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
533	doff_io32},
534	{"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
535	doff_io32},
536	{"CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
537	doff_io32},
538	{"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
539	doff_io32},
540	{"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
541	doff_io32},
542	{"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
543	doff_io32},
544	{},
545	};
546
547	static const struct dbg_off rx_itr_cnt_off[] = {
548	{"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
549	doff_io32},
550	{"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
551	doff_io32},
552	{"CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
553	doff_io32},
554	{"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
555	doff_io32},
556	{"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
557	doff_io32},
558	{"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
559	doff_io32},
560	{},
561	};
562
563	static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
564	struct dentry *parent)
565	{
566	struct dentry *d, *dtx, *drx;
567
568	d = debugfs_create_dir(name: "ITR_CNT", parent);
569
570	dtx = debugfs_create_dir(name: "TX", parent: d);
571	drx = debugfs_create_dir(name: "RX", parent: d);
572
573	wil6210_debugfs_init_offset(wil, dbg: d, base: (void * __force)wil->csr,
574	tbl: lgc_itr_cnt_off);
575
576	wil6210_debugfs_init_offset(wil, dbg: dtx, base: (void * __force)wil->csr,
577	tbl: tx_itr_cnt_off);
578
579	wil6210_debugfs_init_offset(wil, dbg: drx, base: (void * __force)wil->csr,
580	tbl: rx_itr_cnt_off);
581	return 0;
582	}
583
584	static int memread_show(struct seq_file *s, void *data)
585	{
586	struct wil6210_priv *wil = s->private;
587	void __iomem *a;
588	int ret;
589
590	ret = wil_pm_runtime_get(wil);
591	if (ret < 0)
592	return ret;
593
594	ret = wil_mem_access_lock(wil);
595	if (ret) {
596	wil_pm_runtime_put(wil);
597	return ret;
598	}
599
600	a = wmi_buffer(wil, cpu_to_le32(mem_addr));
601
602	if (a)
603	seq_printf(m: s, fmt: "[0x%08x] = 0x%08x\n", mem_addr, readl(addr: a));
604	else
605	seq_printf(m: s, fmt: "[0x%08x] = INVALID\n", mem_addr);
606
607	wil_mem_access_unlock(wil);
608	wil_pm_runtime_put(wil);
609
610	return 0;
611	}
612	DEFINE_SHOW_ATTRIBUTE(memread);
613
614	static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
615	size_t count, loff_t *ppos)
616	{
617	enum { max_count = 4096 };
618	struct wil_blob_wrapper *wil_blob = file->private_data;
619	struct wil6210_priv *wil = wil_blob->wil;
620	loff_t aligned_pos, pos = *ppos;
621	size_t available = wil_blob->blob.size;
622	void *buf;
623	size_t unaligned_bytes, aligned_count, ret;
624	int rc;
625
626	if (pos < 0)
627	return -EINVAL;
628
629	if (pos >= available || !count)
630	return 0;
631
632	if (count > available - pos)
633	count = available - pos;
634	if (count > max_count)
635	count = max_count;
636
637	/* set pos to 4 bytes aligned */
638	unaligned_bytes = pos % 4;
639	aligned_pos = pos - unaligned_bytes;
640	aligned_count = count + unaligned_bytes;
641
642	buf = kmalloc(size: aligned_count, GFP_KERNEL);
643	if (!buf)
644	return -ENOMEM;
645
646	rc = wil_pm_runtime_get(wil);
647	if (rc < 0) {
648	kfree(objp: buf);
649	return rc;
650	}
651
652	rc = wil_mem_access_lock(wil);
653	if (rc) {
654	kfree(objp: buf);
655	wil_pm_runtime_put(wil);
656	return rc;
657	}
658
659	wil_memcpy_fromio_32(dst: buf, src: (const void __iomem *)
660	wil_blob->blob.data + aligned_pos, count: aligned_count);
661
662	ret = copy_to_user(to: user_buf, from: buf + unaligned_bytes, n: count);
663
664	wil_mem_access_unlock(wil);
665	wil_pm_runtime_put(wil);
666
667	kfree(objp: buf);
668	if (ret == count)
669	return -EFAULT;
670
671	count -= ret;
672	*ppos = pos + count;
673
674	return count;
675	}
676
677	static const struct file_operations fops_ioblob = {
678	.read = wil_read_file_ioblob,
679	.open = simple_open,
680	.llseek = default_llseek,
681	};
682
683	static
684	struct dentry *wil_debugfs_create_ioblob(const char *name,
685	umode_t mode,
686	struct dentry *parent,
687	struct wil_blob_wrapper *wil_blob)
688	{
689	return debugfs_create_file(name, mode, parent, data: wil_blob, fops: &fops_ioblob);
690	}
691
692	/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
693	static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
694	size_t len, loff_t *ppos)
695	{
696	struct wil6210_priv *wil = file->private_data;
697	int rc;
698	long channel;
699	bool on;
700
701	char *kbuf = memdup_user_nul(buf, len);
702
703	if (IS_ERR(ptr: kbuf))
704	return PTR_ERR(ptr: kbuf);
705	rc = kstrtol(s: kbuf, base: 0, res: &channel);
706	kfree(objp: kbuf);
707	if (rc)
708	return rc;
709
710	if ((channel < 0) || (channel > 4)) {
711	wil_err(wil, "Invalid channel %ld\n", channel);
712	return -EINVAL;
713	}
714	on = !!channel;
715
716	if (on) {
717	rc = wmi_set_channel(wil, channel: (int)channel);
718	if (rc)
719	return rc;
720	}
721
722	rc = wmi_rxon(wil, on);
723	if (rc)
724	return rc;
725
726	return len;
727	}
728
729	static const struct file_operations fops_rxon = {
730	.write = wil_write_file_rxon,
731	.open = simple_open,
732	};
733
734	static ssize_t wil_write_file_rbufcap(struct file *file,
735	const char __user *buf,
736	size_t count, loff_t *ppos)
737	{
738	struct wil6210_priv *wil = file->private_data;
739	int val;
740	int rc;
741
742	rc = kstrtoint_from_user(s: buf, count, base: 0, res: &val);
743	if (rc) {
744	wil_err(wil, "Invalid argument\n");
745	return rc;
746	}
747	/* input value: negative to disable, 0 to use system default,
748	* 1..ring size to set descriptor threshold
749	*/
750	wil_info(wil, "%s RBUFCAP, descriptors threshold - %d\n",
751	val < 0 ? "Disabling" : "Enabling", val);
752
753	if (!wil->ring_rx.va || val > wil->ring_rx.size) {
754	wil_err(wil, "Invalid descriptors threshold, %d\n", val);
755	return -EINVAL;
756	}
757
758	rc = wmi_rbufcap_cfg(wil, enable: val < 0 ? 0 : 1, threshold: val < 0 ? 0 : val);
759	if (rc) {
760	wil_err(wil, "RBUFCAP config failed: %d\n", rc);
761	return rc;
762	}
763
764	return count;
765	}
766
767	static const struct file_operations fops_rbufcap = {
768	.write = wil_write_file_rbufcap,
769	.open = simple_open,
770	};
771
772	/* block ack control, write:
773	* - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
774	* - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
775	* - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
776	*/
777	static ssize_t wil_write_back(struct file *file, const char __user *buf,
778	size_t len, loff_t *ppos)
779	{
780	struct wil6210_priv *wil = file->private_data;
781	int rc;
782	char *kbuf = kmalloc(size: len + 1, GFP_KERNEL);
783	char cmd[9];
784	int p1, p2, p3;
785
786	if (!kbuf)
787	return -ENOMEM;
788
789	rc = simple_write_to_buffer(to: kbuf, available: len, ppos, from: buf, count: len);
790	if (rc != len) {
791	kfree(objp: kbuf);
792	return rc >= 0 ? -EIO : rc;
793	}
794
795	kbuf[len] = '\0';
796	rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
797	kfree(objp: kbuf);
798
799	if (rc < 0)
800	return rc;
801	if (rc < 2)
802	return -EINVAL;
803
804	if ((strcmp(cmd, "add") == 0) ||
805	(strcmp(cmd, "del_tx") == 0)) {
806	struct wil_ring_tx_data *txdata;
807
808	if (p1 < 0 || p1 >= WIL6210_MAX_TX_RINGS) {
809	wil_err(wil, "BACK: invalid ring id %d\n", p1);
810	return -EINVAL;
811	}
812	txdata = &wil->ring_tx_data[p1];
813	if (strcmp(cmd, "add") == 0) {
814	if (rc < 3) {
815	wil_err(wil, "BACK: add require at least 2 params\n");
816	return -EINVAL;
817	}
818	if (rc < 4)
819	p3 = 0;
820	wmi_addba(wil, mid: txdata->mid, ringid: p1, size: p2, timeout: p3);
821	} else {
822	if (rc < 3)
823	p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
824	wmi_delba_tx(wil, mid: txdata->mid, ringid: p1, reason: p2);
825	}
826	} else if (strcmp(cmd, "del_rx") == 0) {
827	struct wil_sta_info *sta;
828
829	if (rc < 3) {
830	wil_err(wil,
831	"BACK: del_rx require at least 2 params\n");
832	return -EINVAL;
833	}
834	if (p1 < 0 || p1 >= wil->max_assoc_sta) {
835	wil_err(wil, "BACK: invalid CID %d\n", p1);
836	return -EINVAL;
837	}
838	if (rc < 4)
839	p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
840	sta = &wil->sta[p1];
841	wmi_delba_rx(wil, mid: sta->mid, cid: p1, tid: p2, reason: p3);
842	} else {
843	wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
844	return -EINVAL;
845	}
846
847	return len;
848	}
849
850	static ssize_t wil_read_back(struct file *file, char __user *user_buf,
851	size_t count, loff_t *ppos)
852	{
853	static const char text[] = "block ack control, write:\n"
854	" - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
855	"If missing, <timeout> defaults to 0\n"
856	" - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
857	" - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
858	"If missing, <reason> set to \"STA_LEAVING\" (36)\n";
859
860	return simple_read_from_buffer(to: user_buf, count, ppos, from: text,
861	available: sizeof(text));
862	}
863
864	static const struct file_operations fops_back = {
865	.read = wil_read_back,
866	.write = wil_write_back,
867	.open = simple_open,
868	};
869
870	/* pmc control, write:
871	* - "alloc <num descriptors> <descriptor_size>" to allocate PMC
872	* - "free" to release memory allocated for PMC
873	*/
874	static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
875	size_t len, loff_t *ppos)
876	{
877	struct wil6210_priv *wil = file->private_data;
878	int rc;
879	char *kbuf = kmalloc(size: len + 1, GFP_KERNEL);
880	char cmd[9];
881	int num_descs, desc_size;
882
883	if (!kbuf)
884	return -ENOMEM;
885
886	rc = simple_write_to_buffer(to: kbuf, available: len, ppos, from: buf, count: len);
887	if (rc != len) {
888	kfree(objp: kbuf);
889	return rc >= 0 ? -EIO : rc;
890	}
891
892	kbuf[len] = '\0';
893	rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
894	kfree(objp: kbuf);
895
896	if (rc < 0)
897	return rc;
898
899	if (rc < 1) {
900	wil_err(wil, "pmccfg: no params given\n");
901	return -EINVAL;
902	}
903
904	if (0 == strcmp(cmd, "alloc")) {
905	if (rc != 3) {
906	wil_err(wil, "pmccfg: alloc requires 2 params\n");
907	return -EINVAL;
908	}
909	wil_pmc_alloc(wil, num_descriptors: num_descs, descriptor_size: desc_size);
910	} else if (0 == strcmp(cmd, "free")) {
911	if (rc != 1) {
912	wil_err(wil, "pmccfg: free does not have any params\n");
913	return -EINVAL;
914	}
915	wil_pmc_free(wil, send_pmc_cmd: true);
916	} else {
917	wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
918	return -EINVAL;
919	}
920
921	return len;
922	}
923
924	static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
925	size_t count, loff_t *ppos)
926	{
927	struct wil6210_priv *wil = file->private_data;
928	char text[256];
929	char help[] = "pmc control, write:\n"
930	" - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
931	" - \"free\" to free memory allocated for pmc\n";
932
933	snprintf(buf: text, size: sizeof(text), fmt: "Last command status: %d\n\n%s",
934	wil_pmc_last_cmd_status(wil), help);
935
936	return simple_read_from_buffer(to: user_buf, count, ppos, from: text,
937	strlen(text) + 1);
938	}
939
940	static const struct file_operations fops_pmccfg = {
941	.read = wil_read_pmccfg,
942	.write = wil_write_pmccfg,
943	.open = simple_open,
944	};
945
946	static const struct file_operations fops_pmcdata = {
947	.open = simple_open,
948	.read = wil_pmc_read,
949	.llseek = wil_pmc_llseek,
950	};
951
952	static int wil_pmcring_seq_open(struct inode *inode, struct file *file)
953	{
954	return single_open(file, wil_pmcring_read, inode->i_private);
955	}
956
957	static const struct file_operations fops_pmcring = {
958	.open = wil_pmcring_seq_open,
959	.release = single_release,
960	.read = seq_read,
961	.llseek = seq_lseek,
962	};
963
964	/*---tx_mgmt---*/
965	/* Write mgmt frame to this file to send it */
966	static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
967	size_t len, loff_t *ppos)
968	{
969	struct wil6210_priv *wil = file->private_data;
970	struct wiphy *wiphy = wil_to_wiphy(wil);
971	struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr;
972	struct cfg80211_mgmt_tx_params params;
973	int rc;
974	void *frame;
975
976	memset(&params, 0, sizeof(params));
977
978	if (!len)
979	return -EINVAL;
980
981	frame = memdup_user(buf, len);
982	if (IS_ERR(ptr: frame))
983	return PTR_ERR(ptr: frame);
984
985	params.buf = frame;
986	params.len = len;
987
988	rc = wil_cfg80211_mgmt_tx(wiphy, wdev, params: &params, NULL);
989
990	kfree(objp: frame);
991	wil_info(wil, "-> %d\n", rc);
992
993	return len;
994	}
995
996	static const struct file_operations fops_txmgmt = {
997	.write = wil_write_file_txmgmt,
998	.open = simple_open,
999	};
1000
1001	/* Write WMI command (w/o mbox header) to this file to send it
1002	* WMI starts from wil6210_mbox_hdr_wmi header
1003	*/
1004	static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
1005	size_t len, loff_t *ppos)
1006	{
1007	struct wil6210_priv *wil = file->private_data;
1008	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
1009	struct wmi_cmd_hdr *wmi;
1010	void *cmd;
1011	int cmdlen = len - sizeof(struct wmi_cmd_hdr);
1012	u16 cmdid;
1013	int rc1;
1014
1015	if (cmdlen < 0 || *ppos != 0)
1016	return -EINVAL;
1017
1018	wmi = memdup_user(buf, len);
1019	if (IS_ERR(ptr: wmi))
1020	return PTR_ERR(ptr: wmi);
1021
1022	cmd = (cmdlen > 0) ? &wmi[1] : NULL;
1023	cmdid = le16_to_cpu(wmi->command_id);
1024
1025	rc1 = wmi_send(wil, cmdid, mid: vif->mid, buf: cmd, len: cmdlen);
1026	kfree(objp: wmi);
1027
1028	wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1);
1029
1030	return len;
1031	}
1032
1033	static const struct file_operations fops_wmi = {
1034	.write = wil_write_file_wmi,
1035	.open = simple_open,
1036	};
1037
1038	static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
1039	{
1040	int i = 0;
1041	int len = skb_headlen(skb);
1042	void *p = skb->data;
1043	int nr_frags = skb_shinfo(skb)->nr_frags;
1044
1045	seq_printf(m: s, fmt: " len = %d\n", len);
1046	wil_seq_hexdump(s, p, len, prefix: " : ");
1047
1048	if (nr_frags) {
1049	seq_printf(m: s, fmt: " nr_frags = %d\n", nr_frags);
1050	for (i = 0; i < nr_frags; i++) {
1051	const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1052
1053	len = skb_frag_size(frag);
1054	p = skb_frag_address_safe(frag);
1055	seq_printf(m: s, fmt: " [%2d] : len = %d\n", i, len);
1056	wil_seq_hexdump(s, p, len, prefix: " : ");
1057	}
1058	}
1059	}
1060
1061	/*---------Tx/Rx descriptor------------*/
1062	static int txdesc_show(struct seq_file *s, void *data)
1063	{
1064	struct wil6210_priv *wil = s->private;
1065	struct wil_ring *ring;
1066	bool tx;
1067	int ring_idx = dbg_ring_index;
1068	int txdesc_idx = dbg_txdesc_index;
1069	volatile struct vring_tx_desc *d;
1070	volatile u32 *u;
1071	struct sk_buff *skb;
1072
1073	if (wil->use_enhanced_dma_hw) {
1074	/* RX ring index == 0 */
1075	if (ring_idx >= WIL6210_MAX_TX_RINGS) {
1076	seq_printf(m: s, fmt: "invalid ring index %d\n", ring_idx);
1077	return 0;
1078	}
1079	tx = ring_idx > 0; /* desc ring 0 is reserved for RX */
1080	} else {
1081	/* RX ring index == WIL6210_MAX_TX_RINGS */
1082	if (ring_idx > WIL6210_MAX_TX_RINGS) {
1083	seq_printf(m: s, fmt: "invalid ring index %d\n", ring_idx);
1084	return 0;
1085	}
1086	tx = (ring_idx < WIL6210_MAX_TX_RINGS);
1087	}
1088
1089	ring = tx ? &wil->ring_tx[ring_idx] : &wil->ring_rx;
1090
1091	if (!ring->va) {
1092	if (tx)
1093	seq_printf(m: s, fmt: "No Tx[%2d] RING\n", ring_idx);
1094	else
1095	seq_puts(m: s, s: "No Rx RING\n");
1096	return 0;
1097	}
1098
1099	if (txdesc_idx >= ring->size) {
1100	if (tx)
1101	seq_printf(m: s, fmt: "[%2d] TxDesc index (%d) >= size (%d)\n",
1102	ring_idx, txdesc_idx, ring->size);
1103	else
1104	seq_printf(m: s, fmt: "RxDesc index (%d) >= size (%d)\n",
1105	txdesc_idx, ring->size);
1106	return 0;
1107	}
1108
1109	/* use struct vring_tx_desc for Rx as well,
1110	* only field used, .dma.length, is the same
1111	*/
1112	d = &ring->va[txdesc_idx].tx.legacy;
1113	u = (volatile u32 *)d;
1114	skb = NULL;
1115
1116	if (wil->use_enhanced_dma_hw) {
1117	if (tx) {
1118	skb = ring->ctx ? ring->ctx[txdesc_idx].skb : NULL;
1119	} else if (wil->rx_buff_mgmt.buff_arr) {
1120	struct wil_rx_enhanced_desc *rx_d =
1121	(struct wil_rx_enhanced_desc *)
1122	&ring->va[txdesc_idx].rx.enhanced;
1123	u16 buff_id = le16_to_cpu(rx_d->mac.buff_id);
1124
1125	if (!wil_val_in_range(val: buff_id, min: 0,
1126	max: wil->rx_buff_mgmt.size))
1127	seq_printf(m: s, fmt: "invalid buff_id %d\n", buff_id);
1128	else
1129	skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
1130	}
1131	} else {
1132	skb = ring->ctx[txdesc_idx].skb;
1133	}
1134	if (tx)
1135	seq_printf(m: s, fmt: "Tx[%2d][%3d] = {\n", ring_idx,
1136	txdesc_idx);
1137	else
1138	seq_printf(m: s, fmt: "Rx[%3d] = {\n", txdesc_idx);
1139	seq_printf(m: s, fmt: " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1140	u[0], u[1], u[2], u[3]);
1141	seq_printf(m: s, fmt: " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1142	u[4], u[5], u[6], u[7]);
1143	seq_printf(m: s, fmt: " SKB = 0x%p\n", skb);
1144
1145	if (skb) {
1146	skb_get(skb);
1147	wil_seq_print_skb(s, skb);
1148	kfree_skb(skb);
1149	}
1150	seq_puts(m: s, s: "}\n");
1151
1152	return 0;
1153	}
1154	DEFINE_SHOW_ATTRIBUTE(txdesc);
1155
1156	/*---------Tx/Rx status message------------*/
1157	static int status_msg_show(struct seq_file *s, void *data)
1158	{
1159	struct wil6210_priv *wil = s->private;
1160	int sring_idx = dbg_sring_index;
1161	struct wil_status_ring *sring;
1162	bool tx;
1163	u32 status_msg_idx = dbg_status_msg_index;
1164	u32 *u;
1165
1166	if (sring_idx >= WIL6210_MAX_STATUS_RINGS) {
1167	seq_printf(m: s, fmt: "invalid status ring index %d\n", sring_idx);
1168	return 0;
1169	}
1170
1171	sring = &wil->srings[sring_idx];
1172	tx = !sring->is_rx;
1173
1174	if (!sring->va) {
1175	seq_printf(m: s, fmt: "No %cX status ring\n", tx ? 'T' : 'R');
1176	return 0;
1177	}
1178
1179	if (status_msg_idx >= sring->size) {
1180	seq_printf(m: s, fmt: "%cxDesc index (%d) >= size (%d)\n",
1181	tx ? 'T' : 'R', status_msg_idx, sring->size);
1182	return 0;
1183	}
1184
1185	u = sring->va + (sring->elem_size * status_msg_idx);
1186
1187	seq_printf(m: s, fmt: "%cx[%d][%3d] = {\n",
1188	tx ? 'T' : 'R', sring_idx, status_msg_idx);
1189
1190	seq_printf(m: s, fmt: " 0x%08x 0x%08x 0x%08x 0x%08x\n",
1191	u[0], u[1], u[2], u[3]);
1192	if (!tx && !wil->use_compressed_rx_status)
1193	seq_printf(m: s, fmt: " 0x%08x 0x%08x 0x%08x 0x%08x\n",
1194	u[4], u[5], u[6], u[7]);
1195
1196	seq_puts(m: s, s: "}\n");
1197
1198	return 0;
1199	}
1200	DEFINE_SHOW_ATTRIBUTE(status_msg);
1201
1202	static int wil_print_rx_buff(struct seq_file *s, struct list_head *lh)
1203	{
1204	struct wil_rx_buff *it;
1205	int i = 0;
1206
1207	list_for_each_entry(it, lh, list) {
1208	if ((i % 16) == 0 && i != 0)
1209	seq_puts(m: s, s: "\n ");
1210	seq_printf(m: s, fmt: "[%4d] ", it->id);
1211	i++;
1212	}
1213	seq_printf(m: s, fmt: "\nNumber of buffers: %u\n", i);
1214
1215	return i;
1216	}
1217
1218	static int rx_buff_mgmt_show(struct seq_file *s, void *data)
1219	{
1220	struct wil6210_priv *wil = s->private;
1221	struct wil_rx_buff_mgmt *rbm = &wil->rx_buff_mgmt;
1222	int num_active;
1223	int num_free;
1224
1225	if (!rbm->buff_arr)
1226	return -EINVAL;
1227
1228	seq_printf(m: s, fmt: " size = %zu\n", rbm->size);
1229	seq_printf(m: s, fmt: " free_list_empty_cnt = %lu\n",
1230	rbm->free_list_empty_cnt);
1231
1232	/* Print active list */
1233	seq_puts(m: s, s: " Active list:\n");
1234	num_active = wil_print_rx_buff(s, lh: &rbm->active);
1235	seq_puts(m: s, s: "\n Free list:\n");
1236	num_free = wil_print_rx_buff(s, lh: &rbm->free);
1237
1238	seq_printf(m: s, fmt: " Total number of buffers: %u\n",
1239	num_active + num_free);
1240
1241	return 0;
1242	}
1243	DEFINE_SHOW_ATTRIBUTE(rx_buff_mgmt);
1244
1245	/*---------beamforming------------*/
1246	static char *wil_bfstatus_str(u32 status)
1247	{
1248	switch (status) {
1249	case 0:
1250	return "Failed";
1251	case 1:
1252	return "OK";
1253	case 2:
1254	return "Retrying";
1255	default:
1256	return "??";
1257	}
1258	}
1259
1260	static bool is_all_zeros(void * const x_, size_t sz)
1261	{
1262	/* if reply is all-0, ignore this CID */
1263	u32 *x = x_;
1264	int n;
1265
1266	for (n = 0; n < sz / sizeof(*x); n++)
1267	if (x[n])
1268	return false;
1269
1270	return true;
1271	}
1272
1273	static int bf_show(struct seq_file *s, void *data)
1274	{
1275	int rc;
1276	int i;
1277	struct wil6210_priv *wil = s->private;
1278	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
1279	struct wmi_notify_req_cmd cmd = {
1280	.interval_usec = 0,
1281	};
1282	struct {
1283	struct wmi_cmd_hdr wmi;
1284	struct wmi_notify_req_done_event evt;
1285	} __packed reply;
1286
1287	memset(&reply, 0, sizeof(reply));
1288
1289	for (i = 0; i < wil->max_assoc_sta; i++) {
1290	u32 status;
1291	u8 bf_mcs;
1292
1293	cmd.cid = i;
1294	rc = wmi_call(wil, cmdid: WMI_NOTIFY_REQ_CMDID, mid: vif->mid,
1295	buf: &cmd, len: sizeof(cmd),
1296	reply_id: WMI_NOTIFY_REQ_DONE_EVENTID, reply: &reply,
1297	reply_size: sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
1298	/* if reply is all-0, ignore this CID */
1299	if (rc || is_all_zeros(x_: &reply.evt, sz: sizeof(reply.evt)))
1300	continue;
1301
1302	status = le32_to_cpu(reply.evt.status);
1303	bf_mcs = le16_to_cpu(reply.evt.bf_mcs);
1304	seq_printf(m: s, fmt: "CID %d {\n"
1305	" TSF = 0x%016llx\n"
1306	" TxMCS = %s TxTpt = %4d\n"
1307	" SQI = %4d\n"
1308	" RSSI = %4d\n"
1309	" Status = 0x%08x %s\n"
1310	" Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
1311	" Goodput(rx:tx) %4d:%4d\n"
1312	"}\n",
1313	i,
1314	le64_to_cpu(reply.evt.tsf),
1315	WIL_EXTENDED_MCS_CHECK(bf_mcs),
1316	le32_to_cpu(reply.evt.tx_tpt),
1317	reply.evt.sqi,
1318	reply.evt.rssi,
1319	status, wil_bfstatus_str(status),
1320	le16_to_cpu(reply.evt.my_rx_sector),
1321	le16_to_cpu(reply.evt.my_tx_sector),
1322	le16_to_cpu(reply.evt.other_rx_sector),
1323	le16_to_cpu(reply.evt.other_tx_sector),
1324	le32_to_cpu(reply.evt.rx_goodput),
1325	le32_to_cpu(reply.evt.tx_goodput));
1326	}
1327	return 0;
1328	}
1329	DEFINE_SHOW_ATTRIBUTE(bf);
1330
1331	/*---------temp------------*/
1332	static void print_temp(struct seq_file *s, const char *prefix, s32 t)
1333	{
1334	switch (t) {
1335	case 0:
1336	case WMI_INVALID_TEMPERATURE:
1337	seq_printf(m: s, fmt: "%s N/A\n", prefix);
1338	break;
1339	default:
1340	seq_printf(m: s, fmt: "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""),
1341	abs(t / 1000), abs(t % 1000));
1342	break;
1343	}
1344	}
1345
1346	static int temp_show(struct seq_file *s, void *data)
1347	{
1348	struct wil6210_priv *wil = s->private;
1349	int rc, i;
1350
1351	if (test_bit(WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF,
1352	wil->fw_capabilities)) {
1353	struct wmi_temp_sense_all_done_event sense_all_evt;
1354
1355	wil_dbg_misc(wil,
1356	"WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is supported");
1357	rc = wmi_get_all_temperatures(wil, sense_all_evt: &sense_all_evt);
1358	if (rc) {
1359	seq_puts(m: s, s: "Failed\n");
1360	return 0;
1361	}
1362	print_temp(s, prefix: "T_mac =",
1363	le32_to_cpu(sense_all_evt.baseband_t1000));
1364	seq_printf(m: s, fmt: "Connected RFs [0x%08x]\n",
1365	sense_all_evt.rf_bitmap);
1366	for (i = 0; i < WMI_MAX_XIF_PORTS_NUM; i++) {
1367	seq_printf(m: s, fmt: "RF[%d] = ", i);
1368	print_temp(s, prefix: "",
1369	le32_to_cpu(sense_all_evt.rf_t1000[i]));
1370	}
1371	} else {
1372	s32 t_m, t_r;
1373
1374	wil_dbg_misc(wil,
1375	"WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is not supported");
1376	rc = wmi_get_temperature(wil, t_m: &t_m, t_r: &t_r);
1377	if (rc) {
1378	seq_puts(m: s, s: "Failed\n");
1379	return 0;
1380	}
1381	print_temp(s, prefix: "T_mac =", t: t_m);
1382	print_temp(s, prefix: "T_radio =", t: t_r);
1383	}
1384	return 0;
1385	}
1386	DEFINE_SHOW_ATTRIBUTE(temp);
1387
1388	/*---------link------------*/
1389	static int link_show(struct seq_file *s, void *data)
1390	{
1391	struct wil6210_priv *wil = s->private;
1392	struct station_info *sinfo;
1393	int i, rc = 0;
1394
1395	sinfo = kzalloc(size: sizeof(*sinfo), GFP_KERNEL);
1396	if (!sinfo)
1397	return -ENOMEM;
1398
1399	for (i = 0; i < wil->max_assoc_sta; i++) {
1400	struct wil_sta_info *p = &wil->sta[i];
1401	char *status = "unknown";
1402	struct wil6210_vif *vif;
1403	u8 mid;
1404
1405	switch (p->status) {
1406	case wil_sta_unused:
1407	status = "unused ";
1408	break;
1409	case wil_sta_conn_pending:
1410	status = "pending ";
1411	break;
1412	case wil_sta_connected:
1413	status = "connected";
1414	break;
1415	}
1416	mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1417	seq_printf(m: s, fmt: "[%d][MID %d] %pM %s\n",
1418	i, mid, p->addr, status);
1419
1420	if (p->status != wil_sta_connected)
1421	continue;
1422
1423	vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL;
1424	if (vif) {
1425	rc = wil_cid_fill_sinfo(vif, cid: i, sinfo);
1426	if (rc)
1427	goto out;
1428
1429	seq_printf(m: s, fmt: " Tx_mcs = %s\n",
1430	WIL_EXTENDED_MCS_CHECK(sinfo->txrate.mcs));
1431	seq_printf(m: s, fmt: " Rx_mcs = %s\n",
1432	WIL_EXTENDED_MCS_CHECK(sinfo->rxrate.mcs));
1433	seq_printf(m: s, fmt: " SQ = %d\n", sinfo->signal);
1434	} else {
1435	seq_puts(m: s, s: " INVALID MID\n");
1436	}
1437	}
1438
1439	out:
1440	kfree(objp: sinfo);
1441	return rc;
1442	}
1443	DEFINE_SHOW_ATTRIBUTE(link);
1444
1445	/*---------info------------*/
1446	static int info_show(struct seq_file *s, void *data)
1447	{
1448	struct wil6210_priv *wil = s->private;
1449	struct net_device *ndev = wil->main_ndev;
1450	int is_ac = power_supply_is_system_supplied();
1451	int rx = atomic_xchg(v: &wil->isr_count_rx, new: 0);
1452	int tx = atomic_xchg(v: &wil->isr_count_tx, new: 0);
1453	static ulong rxf_old, txf_old;
1454	ulong rxf = ndev->stats.rx_packets;
1455	ulong txf = ndev->stats.tx_packets;
1456	unsigned int i;
1457
1458	/* >0 : AC; 0 : battery; <0 : error */
1459	seq_printf(m: s, fmt: "AC powered : %d\n", is_ac);
1460	seq_printf(m: s, fmt: "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1461	seq_printf(m: s, fmt: "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1462	rxf_old = rxf;
1463	txf_old = txf;
1464
1465	#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1466	" " __stringify(x) : ""
1467
1468	for (i = 0; i < ndev->num_tx_queues; i++) {
1469	struct netdev_queue *txq = netdev_get_tx_queue(dev: ndev, index: i);
1470	unsigned long state = txq->state;
1471
1472	seq_printf(m: s, fmt: "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1473	CHECK_QSTATE(DRV_XOFF),
1474	CHECK_QSTATE(STACK_XOFF),
1475	CHECK_QSTATE(FROZEN)
1476	);
1477	}
1478	#undef CHECK_QSTATE
1479	return 0;
1480	}
1481	DEFINE_SHOW_ATTRIBUTE(info);
1482
1483	/*---------recovery------------*/
1484	/* mode = [manual|auto]
1485	* state = [idle|pending|running]
1486	*/
1487	static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1488	size_t count, loff_t *ppos)
1489	{
1490	struct wil6210_priv *wil = file->private_data;
1491	char buf[80];
1492	int n;
1493	static const char * const sstate[] = {"idle", "pending", "running"};
1494
1495	n = snprintf(buf, size: sizeof(buf), fmt: "mode = %s\nstate = %s\n",
1496	no_fw_recovery ? "manual" : "auto",
1497	sstate[wil->recovery_state]);
1498
1499	n = min_t(int, n, sizeof(buf));
1500
1501	return simple_read_from_buffer(to: user_buf, count, ppos,
1502	from: buf, available: n);
1503	}
1504
1505	static ssize_t wil_write_file_recovery(struct file *file,
1506	const char __user *buf_,
1507	size_t count, loff_t *ppos)
1508	{
1509	struct wil6210_priv *wil = file->private_data;
1510	static const char run_command[] = "run";
1511	char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1512	ssize_t rc;
1513
1514	if (wil->recovery_state != fw_recovery_pending) {
1515	wil_err(wil, "No recovery pending\n");
1516	return -EINVAL;
1517	}
1518
1519	if (*ppos != 0) {
1520	wil_err(wil, "Offset [%d]\n", (int)*ppos);
1521	return -EINVAL;
1522	}
1523
1524	if (count > sizeof(buf)) {
1525	wil_err(wil, "Input too long, len = %d\n", (int)count);
1526	return -EINVAL;
1527	}
1528
1529	rc = simple_write_to_buffer(to: buf, available: sizeof(buf) - 1, ppos, from: buf_, count);
1530	if (rc < 0)
1531	return rc;
1532
1533	buf[rc] = '\0';
1534	if (0 == strcmp(buf, run_command))
1535	wil_set_recovery_state(wil, state: fw_recovery_running);
1536	else
1537	wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1538
1539	return rc;
1540	}
1541
1542	static const struct file_operations fops_recovery = {
1543	.read = wil_read_file_recovery,
1544	.write = wil_write_file_recovery,
1545	.open = simple_open,
1546	};
1547
1548	/*---------Station matrix------------*/
1549	static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1550	{
1551	int i;
1552	u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1553	unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
1554	unsigned long long drop_dup_mcast = r->drop_dup_mcast;
1555
1556	seq_printf(m: s, fmt: "([%2d]) 0x%03x [", r->buf_size, r->head_seq_num);
1557	for (i = 0; i < r->buf_size; i++) {
1558	if (i == index)
1559	seq_printf(m: s, fmt: "%c", r->reorder_buf[i] ? 'O' : '|');
1560	else
1561	seq_printf(m: s, fmt: "%c", r->reorder_buf[i] ? '*' : '_');
1562	}
1563	seq_printf(m: s,
1564	fmt: "] total %llu drop %llu (dup %llu + old %llu + dup mcast %llu) last 0x%03x\n",
1565	r->total, drop_dup + drop_old + drop_dup_mcast, drop_dup,
1566	drop_old, drop_dup_mcast, r->ssn_last_drop);
1567	}
1568
1569	static void wil_print_rxtid_crypto(struct seq_file *s, int tid,
1570	struct wil_tid_crypto_rx *c)
1571	{
1572	int i;
1573
1574	for (i = 0; i < 4; i++) {
1575	struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1576
1577	if (cc->key_set)
1578	goto has_keys;
1579	}
1580	return;
1581
1582	has_keys:
1583	if (tid < WIL_STA_TID_NUM)
1584	seq_printf(m: s, fmt: " [%2d] PN", tid);
1585	else
1586	seq_puts(m: s, s: " [GR] PN");
1587
1588	for (i = 0; i < 4; i++) {
1589	struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1590
1591	seq_printf(m: s, fmt: " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
1592	cc->pn);
1593	}
1594	seq_puts(m: s, s: "\n");
1595	}
1596
1597	static int sta_show(struct seq_file *s, void *data)
1598	__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1599	{
1600	struct wil6210_priv *wil = s->private;
1601	int i, tid, mcs;
1602
1603	for (i = 0; i < wil->max_assoc_sta; i++) {
1604	struct wil_sta_info *p = &wil->sta[i];
1605	char *status = "unknown";
1606	u8 aid = 0;
1607	u8 mid;
1608	bool sta_connected = false;
1609
1610	switch (p->status) {
1611	case wil_sta_unused:
1612	status = "unused ";
1613	break;
1614	case wil_sta_conn_pending:
1615	status = "pending ";
1616	break;
1617	case wil_sta_connected:
1618	status = "connected";
1619	aid = p->aid;
1620	break;
1621	}
1622	mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1623	if (mid < GET_MAX_VIFS(wil)) {
1624	struct wil6210_vif *vif = wil->vifs[mid];
1625
1626	if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
1627	p->status == wil_sta_connected)
1628	sta_connected = true;
1629	}
1630	/* print roam counter only for connected stations */
1631	if (sta_connected)
1632	seq_printf(m: s, fmt: "[%d] %pM connected (roam counter %d) MID %d AID %d\n",
1633	i, p->addr, p->stats.ft_roams, mid, aid);
1634	else
1635	seq_printf(m: s, fmt: "[%d] %pM %s MID %d AID %d\n", i,
1636	p->addr, status, mid, aid);
1637
1638	if (p->status == wil_sta_connected) {
1639	spin_lock_bh(lock: &p->tid_rx_lock);
1640	for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1641	struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1642	struct wil_tid_crypto_rx *c =
1643	&p->tid_crypto_rx[tid];
1644
1645	if (r) {
1646	seq_printf(m: s, fmt: " [%2d] ", tid);
1647	wil_print_rxtid(s, r);
1648	}
1649
1650	wil_print_rxtid_crypto(s, tid, c);
1651	}
1652	wil_print_rxtid_crypto(s, WIL_STA_TID_NUM,
1653	c: &p->group_crypto_rx);
1654	spin_unlock_bh(lock: &p->tid_rx_lock);
1655	seq_printf(m: s,
1656	fmt: "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n",
1657	p->stats.rx_non_data_frame,
1658	p->stats.rx_short_frame,
1659	p->stats.rx_large_frame,
1660	p->stats.rx_replay);
1661	seq_printf(m: s,
1662	fmt: "mic error %lu, key error %lu, amsdu error %lu, csum error %lu\n",
1663	p->stats.rx_mic_error,
1664	p->stats.rx_key_error,
1665	p->stats.rx_amsdu_error,
1666	p->stats.rx_csum_err);
1667
1668	seq_puts(m: s, s: "Rx/MCS:");
1669	for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1670	mcs++)
1671	seq_printf(m: s, fmt: " %lld",
1672	p->stats.rx_per_mcs[mcs]);
1673	seq_puts(m: s, s: "\n");
1674	}
1675	}
1676
1677	return 0;
1678	}
1679	DEFINE_SHOW_ATTRIBUTE(sta);
1680
1681	static int mids_show(struct seq_file *s, void *data)
1682	{
1683	struct wil6210_priv *wil = s->private;
1684	struct wil6210_vif *vif;
1685	struct net_device *ndev;
1686	int i;
1687
1688	mutex_lock(&wil->vif_mutex);
1689	for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1690	vif = wil->vifs[i];
1691
1692	if (vif) {
1693	ndev = vif_to_ndev(vif);
1694	seq_printf(m: s, fmt: "[%d] %pM %s\n", i, ndev->dev_addr,
1695	ndev->name);
1696	} else {
1697	seq_printf(m: s, fmt: "[%d] unused\n", i);
1698	}
1699	}
1700	mutex_unlock(lock: &wil->vif_mutex);
1701
1702	return 0;
1703	}
1704	DEFINE_SHOW_ATTRIBUTE(mids);
1705
1706	static int wil_tx_latency_debugfs_show(struct seq_file *s, void *data)
1707	__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1708	{
1709	struct wil6210_priv *wil = s->private;
1710	int i, bin;
1711
1712	for (i = 0; i < wil->max_assoc_sta; i++) {
1713	struct wil_sta_info *p = &wil->sta[i];
1714	char *status = "unknown";
1715	u8 aid = 0;
1716	u8 mid;
1717
1718	if (!p->tx_latency_bins)
1719	continue;
1720
1721	switch (p->status) {
1722	case wil_sta_unused:
1723	status = "unused ";
1724	break;
1725	case wil_sta_conn_pending:
1726	status = "pending ";
1727	break;
1728	case wil_sta_connected:
1729	status = "connected";
1730	aid = p->aid;
1731	break;
1732	}
1733	mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1734	seq_printf(m: s, fmt: "[%d] %pM %s MID %d AID %d\n", i, p->addr, status,
1735	mid, aid);
1736
1737	if (p->status == wil_sta_connected) {
1738	u64 num_packets = 0;
1739	u64 tx_latency_avg = p->stats.tx_latency_total_us;
1740
1741	seq_puts(m: s, s: "Tx/Latency bin:");
1742	for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) {
1743	seq_printf(m: s, fmt: " %lld",
1744	p->tx_latency_bins[bin]);
1745	num_packets += p->tx_latency_bins[bin];
1746	}
1747	seq_puts(m: s, s: "\n");
1748	if (!num_packets)
1749	continue;
1750	do_div(tx_latency_avg, num_packets);
1751	seq_printf(m: s, fmt: "Tx/Latency min/avg/max (us): %d/%lld/%d",
1752	p->stats.tx_latency_min_us,
1753	tx_latency_avg,
1754	p->stats.tx_latency_max_us);
1755
1756	seq_puts(m: s, s: "\n");
1757	}
1758	}
1759
1760	return 0;
1761	}
1762
1763	static int wil_tx_latency_seq_open(struct inode *inode, struct file *file)
1764	{
1765	return single_open(file, wil_tx_latency_debugfs_show,
1766	inode->i_private);
1767	}
1768
1769	static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf,
1770	size_t len, loff_t *ppos)
1771	{
1772	struct seq_file *s = file->private_data;
1773	struct wil6210_priv *wil = s->private;
1774	int val, rc, i;
1775	bool enable;
1776
1777	rc = kstrtoint_from_user(s: buf, count: len, base: 0, res: &val);
1778	if (rc) {
1779	wil_err(wil, "Invalid argument\n");
1780	return rc;
1781	}
1782	if (val == 1)
1783	/* default resolution */
1784	val = 500;
1785	if (val && (val < 50 || val > 1000)) {
1786	wil_err(wil, "Invalid resolution %d\n", val);
1787	return -EINVAL;
1788	}
1789
1790	enable = !!val;
1791	if (wil->tx_latency == enable)
1792	return len;
1793
1794	wil_info(wil, "%s TX latency measurements (resolution %dusec)\n",
1795	enable ? "Enabling" : "Disabling", val);
1796
1797	if (enable) {
1798	size_t sz = sizeof(u64) * WIL_NUM_LATENCY_BINS;
1799
1800	wil->tx_latency_res = val;
1801	for (i = 0; i < wil->max_assoc_sta; i++) {
1802	struct wil_sta_info *sta = &wil->sta[i];
1803
1804	kfree(objp: sta->tx_latency_bins);
1805	sta->tx_latency_bins = kzalloc(size: sz, GFP_KERNEL);
1806	if (!sta->tx_latency_bins)
1807	return -ENOMEM;
1808	sta->stats.tx_latency_min_us = U32_MAX;
1809	sta->stats.tx_latency_max_us = 0;
1810	sta->stats.tx_latency_total_us = 0;
1811	}
1812	}
1813	wil->tx_latency = enable;
1814
1815	return len;
1816	}
1817
1818	static const struct file_operations fops_tx_latency = {
1819	.open = wil_tx_latency_seq_open,
1820	.release = single_release,
1821	.read = seq_read,
1822	.write = wil_tx_latency_write,
1823	.llseek = seq_lseek,
1824	};
1825
1826	static void wil_link_stats_print_basic(struct wil6210_vif *vif,
1827	struct seq_file *s,
1828	struct wmi_link_stats_basic *basic)
1829	{
1830	char per[5] = "?";
1831
1832	if (basic->per_average != 0xff)
1833	snprintf(buf: per, size: sizeof(per), fmt: "%d%%", basic->per_average);
1834
1835	seq_printf(m: s, fmt: "CID %d {\n"
1836	"\tTxMCS %s TxTpt %d\n"
1837	"\tGoodput(rx:tx) %d:%d\n"
1838	"\tRxBcastFrames %d\n"
1839	"\tRSSI %d SQI %d SNR %d PER %s\n"
1840	"\tRx RFC %d Ant num %d\n"
1841	"\tSectors(rx:tx) my %d:%d peer %d:%d\n"
1842	"}\n",
1843	basic->cid,
1844	WIL_EXTENDED_MCS_CHECK(basic->bf_mcs),
1845	le32_to_cpu(basic->tx_tpt),
1846	le32_to_cpu(basic->rx_goodput),
1847	le32_to_cpu(basic->tx_goodput),
1848	le32_to_cpu(basic->rx_bcast_frames),
1849	basic->rssi, basic->sqi, basic->snr, per,
1850	basic->selected_rfc, basic->rx_effective_ant_num,
1851	basic->my_rx_sector, basic->my_tx_sector,
1852	basic->other_rx_sector, basic->other_tx_sector);
1853	}
1854
1855	static void wil_link_stats_print_global(struct wil6210_priv *wil,
1856	struct seq_file *s,
1857	struct wmi_link_stats_global *global)
1858	{
1859	seq_printf(m: s, fmt: "Frames(rx:tx) %d:%d\n"
1860	"BA Frames(rx:tx) %d:%d\n"
1861	"Beacons %d\n"
1862	"Rx Errors (MIC:CRC) %d:%d\n"
1863	"Tx Errors (no ack) %d\n",
1864	le32_to_cpu(global->rx_frames),
1865	le32_to_cpu(global->tx_frames),
1866	le32_to_cpu(global->rx_ba_frames),
1867	le32_to_cpu(global->tx_ba_frames),
1868	le32_to_cpu(global->tx_beacons),
1869	le32_to_cpu(global->rx_mic_errors),
1870	le32_to_cpu(global->rx_crc_errors),
1871	le32_to_cpu(global->tx_fail_no_ack));
1872	}
1873
1874	static void wil_link_stats_debugfs_show_vif(struct wil6210_vif *vif,
1875	struct seq_file *s)
1876	{
1877	struct wil6210_priv *wil = vif_to_wil(vif);
1878	struct wmi_link_stats_basic *stats;
1879	int i;
1880
1881	if (!vif->fw_stats_ready) {
1882	seq_puts(m: s, s: "no statistics\n");
1883	return;
1884	}
1885
1886	seq_printf(m: s, fmt: "TSF %lld\n", vif->fw_stats_tsf);
1887	for (i = 0; i < wil->max_assoc_sta; i++) {
1888	if (wil->sta[i].status == wil_sta_unused)
1889	continue;
1890	if (wil->sta[i].mid != vif->mid)
1891	continue;
1892
1893	stats = &wil->sta[i].fw_stats_basic;
1894	wil_link_stats_print_basic(vif, s, basic: stats);
1895	}
1896	}
1897
1898	static int wil_link_stats_debugfs_show(struct seq_file *s, void *data)
1899	{
1900	struct wil6210_priv *wil = s->private;
1901	struct wil6210_vif *vif;
1902	int i, rc;
1903
1904	rc = mutex_lock_interruptible(&wil->vif_mutex);
1905	if (rc)
1906	return rc;
1907
1908	/* iterate over all MIDs and show per-cid statistics. Then show the
1909	* global statistics
1910	*/
1911	for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1912	vif = wil->vifs[i];
1913
1914	seq_printf(m: s, fmt: "MID %d ", i);
1915	if (!vif) {
1916	seq_puts(m: s, s: "unused\n");
1917	continue;
1918	}
1919
1920	wil_link_stats_debugfs_show_vif(vif, s);
1921	}
1922
1923	mutex_unlock(lock: &wil->vif_mutex);
1924
1925	return 0;
1926	}
1927
1928	static int wil_link_stats_seq_open(struct inode *inode, struct file *file)
1929	{
1930	return single_open(file, wil_link_stats_debugfs_show, inode->i_private);
1931	}
1932
1933	static ssize_t wil_link_stats_write(struct file *file, const char __user *buf,
1934	size_t len, loff_t *ppos)
1935	{
1936	struct seq_file *s = file->private_data;
1937	struct wil6210_priv *wil = s->private;
1938	int cid, interval, rc, i;
1939	struct wil6210_vif *vif;
1940	char *kbuf = kmalloc(size: len + 1, GFP_KERNEL);
1941
1942	if (!kbuf)
1943	return -ENOMEM;
1944
1945	rc = simple_write_to_buffer(to: kbuf, available: len, ppos, from: buf, count: len);
1946	if (rc != len) {
1947	kfree(objp: kbuf);
1948	return rc >= 0 ? -EIO : rc;
1949	}
1950
1951	kbuf[len] = '\0';
1952	/* specify cid (use -1 for all cids) and snapshot interval in ms */
1953	rc = sscanf(kbuf, "%d %d", &cid, &interval);
1954	kfree(objp: kbuf);
1955	if (rc < 0)
1956	return rc;
1957	if (rc < 2 || interval < 0)
1958	return -EINVAL;
1959
1960	wil_info(wil, "request link statistics, cid %d interval %d\n",
1961	cid, interval);
1962
1963	rc = mutex_lock_interruptible(&wil->vif_mutex);
1964	if (rc)
1965	return rc;
1966
1967	for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1968	vif = wil->vifs[i];
1969	if (!vif)
1970	continue;
1971
1972	rc = wmi_link_stats_cfg(vif, type: WMI_LINK_STATS_TYPE_BASIC,
1973	cid: (cid == -1 ? 0xff : cid), interval);
1974	if (rc)
1975	wil_err(wil, "link statistics failed for mid %d\n", i);
1976	}
1977	mutex_unlock(lock: &wil->vif_mutex);
1978
1979	return len;
1980	}
1981
1982	static const struct file_operations fops_link_stats = {
1983	.open = wil_link_stats_seq_open,
1984	.release = single_release,
1985	.read = seq_read,
1986	.write = wil_link_stats_write,
1987	.llseek = seq_lseek,
1988	};
1989
1990	static int
1991	wil_link_stats_global_debugfs_show(struct seq_file *s, void *data)
1992	{
1993	struct wil6210_priv *wil = s->private;
1994
1995	if (!wil->fw_stats_global.ready)
1996	return 0;
1997
1998	seq_printf(m: s, fmt: "TSF %lld\n", wil->fw_stats_global.tsf);
1999	wil_link_stats_print_global(wil, s, global: &wil->fw_stats_global.stats);
2000
2001	return 0;
2002	}
2003
2004	static int
2005	wil_link_stats_global_seq_open(struct inode *inode, struct file *file)
2006	{
2007	return single_open(file, wil_link_stats_global_debugfs_show,
2008	inode->i_private);
2009	}
2010
2011	static ssize_t
2012	wil_link_stats_global_write(struct file *file, const char __user *buf,
2013	size_t len, loff_t *ppos)
2014	{
2015	struct seq_file *s = file->private_data;
2016	struct wil6210_priv *wil = s->private;
2017	int interval, rc;
2018	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
2019
2020	/* specify snapshot interval in ms */
2021	rc = kstrtoint_from_user(s: buf, count: len, base: 0, res: &interval);
2022	if (rc || interval < 0) {
2023	wil_err(wil, "Invalid argument\n");
2024	return -EINVAL;
2025	}
2026
2027	wil_info(wil, "request global link stats, interval %d\n", interval);
2028
2029	rc = wmi_link_stats_cfg(vif, type: WMI_LINK_STATS_TYPE_GLOBAL, cid: 0, interval);
2030	if (rc)
2031	wil_err(wil, "global link stats failed %d\n", rc);
2032
2033	return rc ? rc : len;
2034	}
2035
2036	static const struct file_operations fops_link_stats_global = {
2037	.open = wil_link_stats_global_seq_open,
2038	.release = single_release,
2039	.read = seq_read,
2040	.write = wil_link_stats_global_write,
2041	.llseek = seq_lseek,
2042	};
2043
2044	static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf,
2045	size_t count, loff_t *ppos)
2046	{
2047	char buf[80];
2048	int n;
2049
2050	n = snprintf(buf, size: sizeof(buf),
2051	fmt: "led_id is set to %d, echo 1 to enable, 0 to disable\n",
2052	led_id);
2053
2054	n = min_t(int, n, sizeof(buf));
2055
2056	return simple_read_from_buffer(to: user_buf, count, ppos,
2057	from: buf, available: n);
2058	}
2059
2060	static ssize_t wil_write_file_led_cfg(struct file *file,
2061	const char __user *buf_,
2062	size_t count, loff_t *ppos)
2063	{
2064	struct wil6210_priv *wil = file->private_data;
2065	int val;
2066	int rc;
2067
2068	rc = kstrtoint_from_user(s: buf_, count, base: 0, res: &val);
2069	if (rc) {
2070	wil_err(wil, "Invalid argument\n");
2071	return rc;
2072	}
2073
2074	wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id);
2075	rc = wmi_led_cfg(wil, enable: val);
2076	if (rc) {
2077	wil_info(wil, "%s led %d failed\n",
2078	val ? "Enabling" : "Disabling", led_id);
2079	return rc;
2080	}
2081
2082	return count;
2083	}
2084
2085	static const struct file_operations fops_led_cfg = {
2086	.read = wil_read_file_led_cfg,
2087	.write = wil_write_file_led_cfg,
2088	.open = simple_open,
2089	};
2090
2091	/* led_blink_time, write:
2092	* "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast>
2093	*/
2094	static ssize_t wil_write_led_blink_time(struct file *file,
2095	const char __user *buf,
2096	size_t len, loff_t *ppos)
2097	{
2098	int rc;
2099	char *kbuf = kmalloc(size: len + 1, GFP_KERNEL);
2100
2101	if (!kbuf)
2102	return -ENOMEM;
2103
2104	rc = simple_write_to_buffer(to: kbuf, available: len, ppos, from: buf, count: len);
2105	if (rc != len) {
2106	kfree(objp: kbuf);
2107	return rc >= 0 ? -EIO : rc;
2108	}
2109
2110	kbuf[len] = '\0';
2111	rc = sscanf(kbuf, "%d %d %d %d %d %d",
2112	&led_blink_time[WIL_LED_TIME_SLOW].on_ms,
2113	&led_blink_time[WIL_LED_TIME_SLOW].off_ms,
2114	&led_blink_time[WIL_LED_TIME_MED].on_ms,
2115	&led_blink_time[WIL_LED_TIME_MED].off_ms,
2116	&led_blink_time[WIL_LED_TIME_FAST].on_ms,
2117	&led_blink_time[WIL_LED_TIME_FAST].off_ms);
2118	kfree(objp: kbuf);
2119
2120	if (rc < 0)
2121	return rc;
2122	if (rc < 6)
2123	return -EINVAL;
2124
2125	return len;
2126	}
2127
2128	static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf,
2129	size_t count, loff_t *ppos)
2130	{
2131	static char text[400];
2132
2133	snprintf(buf: text, size: sizeof(text),
2134	fmt: "To set led blink on/off time variables write:\n"
2135	"<blink_on_slow> <blink_off_slow> <blink_on_med> "
2136	"<blink_off_med> <blink_on_fast> <blink_off_fast>\n"
2137	"The current values are:\n"
2138	"%d %d %d %d %d %d\n",
2139	led_blink_time[WIL_LED_TIME_SLOW].on_ms,
2140	led_blink_time[WIL_LED_TIME_SLOW].off_ms,
2141	led_blink_time[WIL_LED_TIME_MED].on_ms,
2142	led_blink_time[WIL_LED_TIME_MED].off_ms,
2143	led_blink_time[WIL_LED_TIME_FAST].on_ms,
2144	led_blink_time[WIL_LED_TIME_FAST].off_ms);
2145
2146	return simple_read_from_buffer(to: user_buf, count, ppos, from: text,
2147	available: sizeof(text));
2148	}
2149
2150	static const struct file_operations fops_led_blink_time = {
2151	.read = wil_read_led_blink_time,
2152	.write = wil_write_led_blink_time,
2153	.open = simple_open,
2154	};
2155
2156	/*---------FW capabilities------------*/
2157	static int fw_capabilities_show(struct seq_file *s, void *data)
2158	{
2159	struct wil6210_priv *wil = s->private;
2160
2161	seq_printf(m: s, fmt: "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX,
2162	wil->fw_capabilities);
2163
2164	return 0;
2165	}
2166	DEFINE_SHOW_ATTRIBUTE(fw_capabilities);
2167
2168	/*---------FW version------------*/
2169	static int fw_version_show(struct seq_file *s, void *data)
2170	{
2171	struct wil6210_priv *wil = s->private;
2172
2173	if (wil->fw_version[0])
2174	seq_printf(m: s, fmt: "%s\n", wil->fw_version);
2175	else
2176	seq_puts(m: s, s: "N/A\n");
2177
2178	return 0;
2179	}
2180	DEFINE_SHOW_ATTRIBUTE(fw_version);
2181
2182	/*---------suspend_stats---------*/
2183	static ssize_t wil_write_suspend_stats(struct file *file,
2184	const char __user *buf,
2185	size_t len, loff_t *ppos)
2186	{
2187	struct wil6210_priv *wil = file->private_data;
2188
2189	memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));
2190
2191	return len;
2192	}
2193
2194	static ssize_t wil_read_suspend_stats(struct file *file,
2195	char __user *user_buf,
2196	size_t count, loff_t *ppos)
2197	{
2198	struct wil6210_priv *wil = file->private_data;
2199	char *text;
2200	int n, ret, text_size = 500;
2201
2202	text = kmalloc(size: text_size, GFP_KERNEL);
2203	if (!text)
2204	return -ENOMEM;
2205
2206	n = snprintf(buf: text, size: text_size,
2207	fmt: "Radio on suspend statistics:\n"
2208	"successful suspends:%ld failed suspends:%ld\n"
2209	"successful resumes:%ld failed resumes:%ld\n"
2210	"rejected by device:%ld\n"
2211	"Radio off suspend statistics:\n"
2212	"successful suspends:%ld failed suspends:%ld\n"
2213	"successful resumes:%ld failed resumes:%ld\n"
2214	"General statistics:\n"
2215	"rejected by host:%ld\n",
2216	wil->suspend_stats.r_on.successful_suspends,
2217	wil->suspend_stats.r_on.failed_suspends,
2218	wil->suspend_stats.r_on.successful_resumes,
2219	wil->suspend_stats.r_on.failed_resumes,
2220	wil->suspend_stats.rejected_by_device,
2221	wil->suspend_stats.r_off.successful_suspends,
2222	wil->suspend_stats.r_off.failed_suspends,
2223	wil->suspend_stats.r_off.successful_resumes,
2224	wil->suspend_stats.r_off.failed_resumes,
2225	wil->suspend_stats.rejected_by_host);
2226
2227	n = min_t(int, n, text_size);
2228
2229	ret = simple_read_from_buffer(to: user_buf, count, ppos, from: text, available: n);
2230
2231	kfree(objp: text);
2232
2233	return ret;
2234	}
2235
2236	static const struct file_operations fops_suspend_stats = {
2237	.read = wil_read_suspend_stats,
2238	.write = wil_write_suspend_stats,
2239	.open = simple_open,
2240	};
2241
2242	/*---------compressed_rx_status---------*/
2243	static ssize_t wil_compressed_rx_status_write(struct file *file,
2244	const char __user *buf,
2245	size_t len, loff_t *ppos)
2246	{
2247	struct seq_file *s = file->private_data;
2248	struct wil6210_priv *wil = s->private;
2249	int compressed_rx_status;
2250	int rc;
2251
2252	rc = kstrtoint_from_user(s: buf, count: len, base: 0, res: &compressed_rx_status);
2253	if (rc) {
2254	wil_err(wil, "Invalid argument\n");
2255	return rc;
2256	}
2257
2258	if (wil_has_active_ifaces(wil, up: true, ok: false)) {
2259	wil_err(wil, "cannot change edma config after iface is up\n");
2260	return -EPERM;
2261	}
2262
2263	wil_info(wil, "%sable compressed_rx_status\n",
2264	compressed_rx_status ? "En" : "Dis");
2265
2266	wil->use_compressed_rx_status = compressed_rx_status;
2267
2268	return len;
2269	}
2270
2271	static int
2272	wil_compressed_rx_status_show(struct seq_file *s, void *data)
2273	{
2274	struct wil6210_priv *wil = s->private;
2275
2276	seq_printf(m: s, fmt: "%d\n", wil->use_compressed_rx_status);
2277
2278	return 0;
2279	}
2280
2281	static int
2282	wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file)
2283	{
2284	return single_open(file, wil_compressed_rx_status_show,
2285	inode->i_private);
2286	}
2287
2288	static const struct file_operations fops_compressed_rx_status = {
2289	.open = wil_compressed_rx_status_seq_open,
2290	.release = single_release,
2291	.read = seq_read,
2292	.write = wil_compressed_rx_status_write,
2293	.llseek = seq_lseek,
2294	};
2295
2296	/*----------------*/
2297	static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
2298	struct dentry *dbg)
2299	{
2300	int i;
2301	char name[32];
2302
2303	for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
2304	struct wil_blob_wrapper *wil_blob = &wil->blobs[i];
2305	struct debugfs_blob_wrapper *blob = &wil_blob->blob;
2306	const struct fw_map *map = &fw_mapping[i];
2307
2308	if (!map->name)
2309	continue;
2310
2311	wil_blob->wil = wil;
2312	blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
2313	blob->size = map->to - map->from;
2314	snprintf(buf: name, size: sizeof(name), fmt: "blob_%s", map->name);
2315	wil_debugfs_create_ioblob(name, mode: 0444, parent: dbg, wil_blob);
2316	}
2317	}
2318
2319	/* misc files */
2320	static const struct {
2321	const char *name;
2322	umode_t mode;
2323	const struct file_operations *fops;
2324	} dbg_files[] = {
2325	{"mbox", 0444, &mbox_fops},
2326	{"rings", 0444, &ring_fops},
2327	{"stations", 0444, &sta_fops},
2328	{"mids", 0444, &mids_fops},
2329	{"desc", 0444, &txdesc_fops},
2330	{"bf", 0444, &bf_fops},
2331	{"mem_val", 0644, &memread_fops},
2332	{"rxon", 0244, &fops_rxon},
2333	{"tx_mgmt", 0244, &fops_txmgmt},
2334	{"wmi_send", 0244, &fops_wmi},
2335	{"back", 0644, &fops_back},
2336	{"pmccfg", 0644, &fops_pmccfg},
2337	{"pmcdata", 0444, &fops_pmcdata},
2338	{"pmcring", 0444, &fops_pmcring},
2339	{"temp", 0444, &temp_fops},
2340	{"link", 0444, &link_fops},
2341	{"info", 0444, &info_fops},
2342	{"recovery", 0644, &fops_recovery},
2343	{"led_cfg", 0644, &fops_led_cfg},
2344	{"led_blink_time", 0644, &fops_led_blink_time},
2345	{"fw_capabilities", 0444, &fw_capabilities_fops},
2346	{"fw_version", 0444, &fw_version_fops},
2347	{"suspend_stats", 0644, &fops_suspend_stats},
2348	{"compressed_rx_status", 0644, &fops_compressed_rx_status},
2349	{"srings", 0444, &srings_fops},
2350	{"status_msg", 0444, &status_msg_fops},
2351	{"rx_buff_mgmt", 0444, &rx_buff_mgmt_fops},
2352	{"tx_latency", 0644, &fops_tx_latency},
2353	{"link_stats", 0644, &fops_link_stats},
2354	{"link_stats_global", 0644, &fops_link_stats_global},
2355	{"rbufcap", 0244, &fops_rbufcap},
2356	};
2357
2358	static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
2359	struct dentry *dbg)
2360	{
2361	int i;
2362
2363	for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
2364	debugfs_create_file(name: dbg_files[i].name, mode: dbg_files[i].mode, parent: dbg,
2365	data: wil, fops: dbg_files[i].fops);
2366	}
2367
2368	/* interrupt control blocks */
2369	static const struct {
2370	const char *name;
2371	u32 icr_off;
2372	} dbg_icr[] = {
2373	{"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
2374	{"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
2375	{"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
2376	{"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
2377	};
2378
2379	static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
2380	struct dentry *dbg)
2381	{
2382	int i;
2383
2384	for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
2385	wil6210_debugfs_create_ISR(wil, name: dbg_icr[i].name, parent: dbg,
2386	off: dbg_icr[i].icr_off);
2387	}
2388
2389	#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
2390	offsetof(struct wil6210_priv, name), type}
2391
2392	/* fields in struct wil6210_priv */
2393	static const struct dbg_off dbg_wil_off[] = {
2394	WIL_FIELD(status[0], 0644, doff_ulong),
2395	WIL_FIELD(hw_version, 0444, doff_x32),
2396	WIL_FIELD(recovery_count, 0444, doff_u32),
2397	WIL_FIELD(discovery_mode, 0644, doff_u8),
2398	WIL_FIELD(chip_revision, 0444, doff_u8),
2399	WIL_FIELD(abft_len, 0644, doff_u8),
2400	WIL_FIELD(wakeup_trigger, 0644, doff_u8),
2401	WIL_FIELD(ring_idle_trsh, 0644, doff_u32),
2402	WIL_FIELD(num_rx_status_rings, 0644, doff_u8),
2403	WIL_FIELD(rx_status_ring_order, 0644, doff_u32),
2404	WIL_FIELD(tx_status_ring_order, 0644, doff_u32),
2405	WIL_FIELD(rx_buff_id_count, 0644, doff_u32),
2406	WIL_FIELD(amsdu_en, 0644, doff_u8),
2407	{},
2408	};
2409
2410	static const struct dbg_off dbg_wil_regs[] = {
2411	{"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
2412	doff_io32},
2413	{"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
2414	{"RGF_USER_USAGE_2", 0444, HOSTADDR(RGF_USER_USAGE_2), doff_io32},
2415	{},
2416	};
2417
2418	/* static parameters */
2419	static const struct dbg_off dbg_statics[] = {
2420	{"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32},
2421	{"ring_index", 0644, (ulong)&dbg_ring_index, doff_u32},
2422	{"mem_addr", 0644, (ulong)&mem_addr, doff_u32},
2423	{"led_polarity", 0644, (ulong)&led_polarity, doff_u8},
2424	{"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32},
2425	{"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32},
2426	{"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8},
2427	{},
2428	};
2429
2430	static const int dbg_off_count = 4 * (ARRAY_SIZE(isr_off) - 1) +
2431	ARRAY_SIZE(dbg_wil_regs) - 1 +
2432	ARRAY_SIZE(pseudo_isr_off) - 1 +
2433	ARRAY_SIZE(lgc_itr_cnt_off) - 1 +
2434	ARRAY_SIZE(tx_itr_cnt_off) - 1 +
2435	ARRAY_SIZE(rx_itr_cnt_off) - 1;
2436
2437	int wil6210_debugfs_init(struct wil6210_priv *wil)
2438	{
2439	struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
2440	wil_to_wiphy(wil)->debugfsdir);
2441	if (IS_ERR_OR_NULL(ptr: dbg))
2442	return -ENODEV;
2443
2444	wil->dbg_data.data_arr = kcalloc(n: dbg_off_count,
2445	size: sizeof(struct wil_debugfs_iomem_data),
2446	GFP_KERNEL);
2447	if (!wil->dbg_data.data_arr) {
2448	debugfs_remove_recursive(dentry: dbg);
2449	wil->debug = NULL;
2450	return -ENOMEM;
2451	}
2452
2453	wil->dbg_data.iomem_data_count = 0;
2454
2455	wil_pmc_init(wil);
2456
2457	wil6210_debugfs_init_files(wil, dbg);
2458	wil6210_debugfs_init_isr(wil, dbg);
2459	wil6210_debugfs_init_blobs(wil, dbg);
2460	wil6210_debugfs_init_offset(wil, dbg, base: wil, tbl: dbg_wil_off);
2461	wil6210_debugfs_init_offset(wil, dbg, base: (void * __force)wil->csr,
2462	tbl: dbg_wil_regs);
2463	wil6210_debugfs_init_offset(wil, dbg, NULL, tbl: dbg_statics);
2464
2465	wil6210_debugfs_create_pseudo_ISR(wil, parent: dbg);
2466
2467	wil6210_debugfs_create_ITR_CNT(wil, parent: dbg);
2468
2469	return 0;
2470	}
2471
2472	void wil6210_debugfs_remove(struct wil6210_priv *wil)
2473	{
2474	int i;
2475
2476	debugfs_remove_recursive(dentry: wil->debug);
2477	wil->debug = NULL;
2478
2479	kfree(objp: wil->dbg_data.data_arr);
2480	for (i = 0; i < wil->max_assoc_sta; i++)
2481	kfree(objp: wil->sta[i].tx_latency_bins);
2482
2483	/* free pmc memory without sending command to fw, as it will
2484	* be reset on the way down anyway
2485	*/
2486	wil_pmc_free(wil, send_pmc_cmd: false);
2487	}
2488