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 
wil_print_desc_edma(struct seq_file * s,struct wil6210_priv * wil,struct wil_ring * ring,char _s,char _h,int idx)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(buff_id, 0, wil->rx_buff_mgmt.size))
57 			has_skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
58 		seq_printf(s, "%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(s, "%c", has_skb ? _h : _s);
68 		else
69 			/* num_of_descs == 0, it's a frag in a list of descs */
70 			seq_printf(s, "%c", has_skb ? 'h' : _s);
71 	}
72 }
73 
wil_print_ring(struct seq_file * s,struct wil6210_priv * wil,const char * name,struct wil_ring * ring,char _s,char _h)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(s, "RING %s = {\n", name);
82 	seq_printf(s, "  pa     = %pad\n", &ring->pa);
83 	seq_printf(s, "  va     = 0x%p\n", ring->va);
84 	seq_printf(s, "  size   = %d\n", ring->size);
85 	if (wil->use_enhanced_dma_hw && ring->is_rx)
86 		seq_printf(s, "  swtail = %u\n", *ring->edma_rx_swtail.va);
87 	else
88 		seq_printf(s, "  swtail = %d\n", ring->swtail);
89 	seq_printf(s, "  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(s, "  hwhead = %u\n", v);
102 	}
103 	seq_printf(s, "  hwtail = [0x%08x] -> ", ring->hwtail);
104 	x = wmi_addr(wil, ring->hwtail);
105 	if (x) {
106 		v = readl(x);
107 		seq_printf(s, "0x%08x = %d\n", v, v);
108 	} else {
109 		seq_puts(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(s, "\n");
118 			if (wil->use_enhanced_dma_hw) {
119 				wil_print_desc_edma(s, wil, ring, _s, _h, i);
120 			} else {
121 				volatile struct vring_tx_desc *d =
122 					&ring->va[i].tx.legacy;
123 				seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
124 					   _s : (ring->ctx[i].skb ? _h : 'h'));
125 			}
126 		}
127 		seq_puts(s, "\n");
128 	}
129 	seq_puts(s, "}\n");
130 }
131 
ring_show(struct seq_file * s,void * data)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, "rx", &wil->ring_rx, 'S', '_');
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(sidle, sizeof(sidle), "%3d%%",
161 					 (int)idle);
162 			} else {
163 				snprintf(sidle, sizeof(sidle), "N/A");
164 			}
165 			txdata->begin = now;
166 			txdata->idle = 0ULL;
167 
168 			snprintf(name, sizeof(name), "tx_%2d", i);
169 
170 			if (cid < wil->max_assoc_sta)
171 				seq_printf(s,
172 					   "\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(s,
181 					   "\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, '_', 'H');
186 		}
187 	}
188 
189 	return 0;
190 }
191 DEFINE_SHOW_ATTRIBUTE(ring);
192 
wil_print_sring(struct seq_file * s,struct wil6210_priv * wil,struct wil_status_ring * sring)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(s, "Status Ring %s [ %d ] = {\n",
201 		   sring->is_rx ? "RX" : "TX", sring_idx);
202 	seq_printf(s, "  pa     = %pad\n", &sring->pa);
203 	seq_printf(s, "  va     = 0x%pK\n", sring->va);
204 	seq_printf(s, "  size   = %d\n", sring->size);
205 	seq_printf(s, "  elem_size   = %zu\n", sring->elem_size);
206 	seq_printf(s, "  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(s, "  hwhead = %u\n", v);
217 	}
218 	seq_printf(s, "  hwtail = [0x%08x] -> ", sring->hwtail);
219 	x = wmi_addr(wil, sring->hwtail);
220 	if (x) {
221 		v = readl_relaxed(x);
222 		seq_printf(s, "0x%08x = %d\n", v, v);
223 	} else {
224 		seq_puts(s, "???\n");
225 	}
226 	seq_printf(s, "  desc_rdy_pol   = %d\n", sring->desc_rdy_pol);
227 	seq_printf(s, "  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(s, "\n");
239 			if (i == sring->swhead)
240 				seq_printf(s, "%c", (*sdword_0 & BIT(31)) ?
241 					   'X' : 'x');
242 			else
243 				seq_printf(s, "%c", (*sdword_0 & BIT(31)) ?
244 					   '1' : '0');
245 		}
246 		seq_puts(s, "\n");
247 	}
248 	seq_puts(s, "}\n");
249 }
250 
srings_show(struct seq_file * s,void * data)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, &wil->srings[i]);
259 
260 	return 0;
261 }
262 DEFINE_SHOW_ATTRIBUTE(srings);
263 
wil_seq_hexdump(struct seq_file * s,void * p,int len,const char * prefix)264 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
265 			    const char *prefix)
266 {
267 	seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false);
268 }
269 
wil_print_mbox_ring(struct seq_file * s,const char * prefix,void __iomem * off)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(&r, off, sizeof(r));
286 	wil_mbox_ring_le2cpus(&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(s, "ring %s = {\n", prefix);
294 	seq_printf(s, "  base = 0x%08x\n", r.base);
295 	seq_printf(s, "  size = 0x%04x bytes -> %d entries\n", r.size, rsize);
296 	seq_printf(s, "  tail = 0x%08x\n", r.tail);
297 	seq_printf(s, "  head = 0x%08x\n", r.head);
298 	seq_printf(s, "  entry size = %d\n", r.entry_size);
299 
300 	if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
301 		seq_printf(s, "  ??? 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, r.base) ||
307 	    !wmi_addr(wil, r.tail) ||
308 	    !wmi_addr(wil, r.head)) {
309 		seq_puts(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(&d, x, sizeof(d));
320 
321 		seq_printf(s, "  [%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, d.addr, &hdr)) {
327 			u16 len = le16_to_cpu(hdr.len);
328 
329 			seq_printf(s, " -> %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, 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(databuf, src, len);
342 				wil_seq_hexdump(s, databuf, len, "      : ");
343 			}
344 		} else {
345 			seq_puts(s, "\n");
346 		}
347 	}
348  out:
349 	seq_puts(s, "}\n");
350 	wil_mem_access_unlock(wil);
351 	wil_halp_unvote(wil);
352 }
353 
mbox_show(struct seq_file * s,void * data)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, "tx", wil->csr + HOST_MBOX +
364 		       offsetof(struct wil6210_mbox_ctl, tx));
365 	wil_print_mbox_ring(s, "rx", 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 
wil_debugfs_iomem_x32_set(void * data,u64 val)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 
wil_debugfs_iomem_x32_get(void * data,u64 * val)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((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 
wil_debugfs_create_iomem_x32(const char * name,umode_t mode,struct dentry * parent,void * value,struct wil6210_priv * wil)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_iomem_x32);
426 	wil->dbg_data.iomem_data_count++;
427 }
428 
wil_debugfs_ulong_set(void * data,u64 val)429 static int wil_debugfs_ulong_set(void *data, u64 val)
430 {
431 	*(ulong *)data = val;
432 	return 0;
433 }
434 
wil_debugfs_ulong_get(void * data,u64 * val)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  */
wil6210_debugfs_init_offset(struct wil6210_priv * wil,struct dentry * dbg,void * base,const struct dbg_off * const tbl)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(tbl[i].name, tbl[i].mode, dbg,
463 					   base + tbl[i].off);
464 			break;
465 		case doff_x32:
466 			debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
467 					   base + tbl[i].off);
468 			break;
469 		case doff_ulong:
470 			debugfs_create_file_unsafe(tbl[i].name, tbl[i].mode,
471 						   dbg, base + tbl[i].off,
472 						   &wil_fops_ulong);
473 			break;
474 		case doff_io32:
475 			wil_debugfs_create_iomem_x32(tbl[i].name, tbl[i].mode,
476 						     dbg, base + tbl[i].off,
477 						     wil);
478 			break;
479 		case doff_u8:
480 			debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg,
481 					  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 
wil6210_debugfs_create_ISR(struct wil6210_priv * wil,const char * name,struct dentry * parent,u32 off)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, d, (void * __force)wil->csr + off,
505 				    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 
wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv * wil,struct dentry * parent)515 static void wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
516 					      struct dentry *parent)
517 {
518 	struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
519 
520 	wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
521 				    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 
wil6210_debugfs_create_ITR_CNT(struct wil6210_priv * wil,struct dentry * parent)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("ITR_CNT", parent);
569 
570 	dtx = debugfs_create_dir("TX", d);
571 	drx = debugfs_create_dir("RX", d);
572 
573 	wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
574 				    lgc_itr_cnt_off);
575 
576 	wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
577 				    tx_itr_cnt_off);
578 
579 	wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
580 				    rx_itr_cnt_off);
581 	return 0;
582 }
583 
memread_show(struct seq_file * s,void * data)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(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
604 	else
605 		seq_printf(s, "[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 
wil_read_file_ioblob(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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(aligned_count, GFP_KERNEL);
643 	if (!buf)
644 		return -ENOMEM;
645 
646 	rc = wil_pm_runtime_get(wil);
647 	if (rc < 0) {
648 		kfree(buf);
649 		return rc;
650 	}
651 
652 	rc = wil_mem_access_lock(wil);
653 	if (rc) {
654 		kfree(buf);
655 		wil_pm_runtime_put(wil);
656 		return rc;
657 	}
658 
659 	wil_memcpy_fromio_32(buf, (const void __iomem *)
660 			     wil_blob->blob.data + aligned_pos, aligned_count);
661 
662 	ret = copy_to_user(user_buf, buf + unaligned_bytes, count);
663 
664 	wil_mem_access_unlock(wil);
665 	wil_pm_runtime_put(wil);
666 
667 	kfree(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
wil_debugfs_create_ioblob(const char * name,umode_t mode,struct dentry * parent,struct wil_blob_wrapper * wil_blob)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, wil_blob, &fops_ioblob);
690 }
691 
692 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/
wil_write_file_rxon(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(kbuf))
704 		return PTR_ERR(kbuf);
705 	rc = kstrtol(kbuf, 0, &channel);
706 	kfree(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, (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 
wil_write_file_rbufcap(struct file * file,const char __user * buf,size_t count,loff_t * ppos)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(buf, count, 0, &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, val < 0 ? 0 : 1, 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  */
wil_write_back(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(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(kbuf, len, ppos, buf, len);
790 	if (rc != len) {
791 		kfree(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(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, txdata->mid, p1, p2, p3);
821 		} else {
822 			if (rc < 3)
823 				p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
824 			wmi_delba_tx(wil, txdata->mid, p1, 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, sta->mid, p1, p2, p3);
842 	} else {
843 		wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
844 		return -EINVAL;
845 	}
846 
847 	return len;
848 }
849 
wil_read_back(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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(user_buf, count, ppos, text,
861 				       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  */
wil_write_pmccfg(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(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(kbuf, len, ppos, buf, len);
887 	if (rc != len) {
888 		kfree(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(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_descs, 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, true);
916 	} else {
917 		wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
918 		return -EINVAL;
919 	}
920 
921 	return len;
922 }
923 
wil_read_pmccfg(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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(text, sizeof(text), "Last command status: %d\n\n%s",
934 		 wil_pmc_last_cmd_status(wil), help);
935 
936 	return simple_read_from_buffer(user_buf, count, ppos, 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 
wil_pmcring_seq_open(struct inode * inode,struct file * file)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 */
wil_write_file_txmgmt(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(frame))
983 		return PTR_ERR(frame);
984 
985 	params.buf = frame;
986 	params.len = len;
987 
988 	rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
989 
990 	kfree(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  */
wil_write_file_wmi(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(wmi))
1020 		return PTR_ERR(wmi);
1021 
1022 	cmd = (cmdlen > 0) ? &wmi[1] : NULL;
1023 	cmdid = le16_to_cpu(wmi->command_id);
1024 
1025 	rc1 = wmi_send(wil, cmdid, vif->mid, cmd, cmdlen);
1026 	kfree(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 
wil_seq_print_skb(struct seq_file * s,struct sk_buff * skb)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(s, "    len = %d\n", len);
1046 	wil_seq_hexdump(s, p, len, "      : ");
1047 
1048 	if (nr_frags) {
1049 		seq_printf(s, "    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(s, "    [%2d] : len = %d\n", i, len);
1056 			wil_seq_hexdump(s, p, len, "      : ");
1057 		}
1058 	}
1059 }
1060 
1061 /*---------Tx/Rx descriptor------------*/
txdesc_show(struct seq_file * s,void * data)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(s, "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(s, "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(s, "No Tx[%2d] RING\n", ring_idx);
1094 		else
1095 			seq_puts(s, "No Rx RING\n");
1096 		return 0;
1097 	}
1098 
1099 	if (txdesc_idx >= ring->size) {
1100 		if (tx)
1101 			seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
1102 				   ring_idx, txdesc_idx, ring->size);
1103 		else
1104 			seq_printf(s, "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(buff_id, 0,
1126 					      wil->rx_buff_mgmt.size))
1127 				seq_printf(s, "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(s, "Tx[%2d][%3d] = {\n", ring_idx,
1136 			   txdesc_idx);
1137 	else
1138 		seq_printf(s, "Rx[%3d] = {\n", txdesc_idx);
1139 	seq_printf(s, "  MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1140 		   u[0], u[1], u[2], u[3]);
1141 	seq_printf(s, "  DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1142 		   u[4], u[5], u[6], u[7]);
1143 	seq_printf(s, "  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(s, "}\n");
1151 
1152 	return 0;
1153 }
1154 DEFINE_SHOW_ATTRIBUTE(txdesc);
1155 
1156 /*---------Tx/Rx status message------------*/
status_msg_show(struct seq_file * s,void * data)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(s, "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(s, "No %cX status ring\n", tx ? 'T' : 'R');
1176 		return 0;
1177 	}
1178 
1179 	if (status_msg_idx >= sring->size) {
1180 		seq_printf(s, "%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(s, "%cx[%d][%3d] = {\n",
1188 		   tx ? 'T' : 'R', sring_idx, status_msg_idx);
1189 
1190 	seq_printf(s, "  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(s, "  0x%08x 0x%08x 0x%08x 0x%08x\n",
1194 			   u[4], u[5], u[6], u[7]);
1195 
1196 	seq_puts(s, "}\n");
1197 
1198 	return 0;
1199 }
1200 DEFINE_SHOW_ATTRIBUTE(status_msg);
1201 
wil_print_rx_buff(struct seq_file * s,struct list_head * lh)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(s, "\n    ");
1210 		seq_printf(s, "[%4d] ", it->id);
1211 		i++;
1212 	}
1213 	seq_printf(s, "\nNumber of buffers: %u\n", i);
1214 
1215 	return i;
1216 }
1217 
rx_buff_mgmt_show(struct seq_file * s,void * data)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(s, "  size = %zu\n", rbm->size);
1229 	seq_printf(s, "  free_list_empty_cnt = %lu\n",
1230 		   rbm->free_list_empty_cnt);
1231 
1232 	/* Print active list */
1233 	seq_puts(s, "  Active list:\n");
1234 	num_active = wil_print_rx_buff(s, &rbm->active);
1235 	seq_puts(s, "\n  Free list:\n");
1236 	num_free = wil_print_rx_buff(s, &rbm->free);
1237 
1238 	seq_printf(s, "  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------------*/
wil_bfstatus_str(u32 status)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 
is_all_zeros(void * const x_,size_t sz)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 
bf_show(struct seq_file * s,void * data)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, WMI_NOTIFY_REQ_CMDID, vif->mid,
1295 			      &cmd, sizeof(cmd),
1296 			      WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
1297 			      sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
1298 		/* if reply is all-0, ignore this CID */
1299 		if (rc || is_all_zeros(&reply.evt, 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(s, "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------------*/
print_temp(struct seq_file * s,const char * prefix,s32 t)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(s, "%s N/A\n", prefix);
1338 	break;
1339 	default:
1340 		seq_printf(s, "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""),
1341 			   abs(t / 1000), abs(t % 1000));
1342 		break;
1343 	}
1344 }
1345 
temp_show(struct seq_file * s,void * data)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);
1358 		if (rc) {
1359 			seq_puts(s, "Failed\n");
1360 			return 0;
1361 		}
1362 		print_temp(s, "T_mac   =",
1363 			   le32_to_cpu(sense_all_evt.baseband_t1000));
1364 		seq_printf(s, "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(s, "RF[%d]   = ", i);
1368 			print_temp(s, "",
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_r);
1377 		if (rc) {
1378 			seq_puts(s, "Failed\n");
1379 			return 0;
1380 		}
1381 		print_temp(s, "T_mac   =", t_m);
1382 		print_temp(s, "T_radio =", t_r);
1383 	}
1384 	return 0;
1385 }
1386 DEFINE_SHOW_ATTRIBUTE(temp);
1387 
1388 /*---------link------------*/
link_show(struct seq_file * s,void * data)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(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(s, "[%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, i, sinfo);
1426 			if (rc)
1427 				goto out;
1428 
1429 			seq_printf(s, "  Tx_mcs = %s\n",
1430 				   WIL_EXTENDED_MCS_CHECK(sinfo->txrate.mcs));
1431 			seq_printf(s, "  Rx_mcs = %s\n",
1432 				   WIL_EXTENDED_MCS_CHECK(sinfo->rxrate.mcs));
1433 			seq_printf(s, "  SQ     = %d\n", sinfo->signal);
1434 		} else {
1435 			seq_puts(s, "  INVALID MID\n");
1436 		}
1437 	}
1438 
1439 out:
1440 	kfree(sinfo);
1441 	return rc;
1442 }
1443 DEFINE_SHOW_ATTRIBUTE(link);
1444 
1445 /*---------info------------*/
info_show(struct seq_file * s,void * data)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(&wil->isr_count_rx, 0);
1452 	int tx = atomic_xchg(&wil->isr_count_tx, 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(s, "AC powered : %d\n", is_ac);
1460 	seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1461 	seq_printf(s, "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(ndev, i);
1470 		unsigned long state = txq->state;
1471 
1472 		seq_printf(s, "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  */
wil_read_file_recovery(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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, sizeof(buf), "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(user_buf, count, ppos,
1502 				       buf, n);
1503 }
1504 
wil_write_file_recovery(struct file * file,const char __user * buf_,size_t count,loff_t * ppos)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(buf, sizeof(buf) - 1, ppos, 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, 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------------*/
wil_print_rxtid(struct seq_file * s,struct wil_tid_ampdu_rx * r)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(s, "([%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(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1560 		else
1561 			seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1562 	}
1563 	seq_printf(s,
1564 		   "] 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 
wil_print_rxtid_crypto(struct seq_file * s,int tid,struct wil_tid_crypto_rx * c)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(s, "  [%2d] PN", tid);
1585 	else
1586 		seq_puts(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(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
1592 			   cc->pn);
1593 	}
1594 	seq_puts(s, "\n");
1595 }
1596 
sta_show(struct seq_file * s,void * data)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(s, "[%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(s, "[%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(&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(s, "  [%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 					       &p->group_crypto_rx);
1654 			spin_unlock_bh(&p->tid_rx_lock);
1655 			seq_printf(s,
1656 				   "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(s,
1662 				   "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(s, "Rx/MCS:");
1669 			for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1670 			     mcs++)
1671 				seq_printf(s, " %lld",
1672 					   p->stats.rx_per_mcs[mcs]);
1673 			seq_puts(s, "\n");
1674 		}
1675 	}
1676 
1677 	return 0;
1678 }
1679 DEFINE_SHOW_ATTRIBUTE(sta);
1680 
mids_show(struct seq_file * s,void * data)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(s, "[%d] %pM %s\n", i, ndev->dev_addr,
1695 				   ndev->name);
1696 		} else {
1697 			seq_printf(s, "[%d] unused\n", i);
1698 		}
1699 	}
1700 	mutex_unlock(&wil->vif_mutex);
1701 
1702 	return 0;
1703 }
1704 DEFINE_SHOW_ATTRIBUTE(mids);
1705 
wil_tx_latency_debugfs_show(struct seq_file * s,void * data)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(s, "[%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(s, "Tx/Latency bin:");
1742 			for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) {
1743 				seq_printf(s, " %lld",
1744 					   p->tx_latency_bins[bin]);
1745 				num_packets += p->tx_latency_bins[bin];
1746 			}
1747 			seq_puts(s, "\n");
1748 			if (!num_packets)
1749 				continue;
1750 			do_div(tx_latency_avg, num_packets);
1751 			seq_printf(s, "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(s, "\n");
1757 		}
1758 	}
1759 
1760 	return 0;
1761 }
1762 
wil_tx_latency_seq_open(struct inode * inode,struct file * file)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 
wil_tx_latency_write(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(buf, len, 0, &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(sta->tx_latency_bins);
1805 			sta->tx_latency_bins = kzalloc(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 
wil_link_stats_print_basic(struct wil6210_vif * vif,struct seq_file * s,struct wmi_link_stats_basic * basic)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(per, sizeof(per), "%d%%", basic->per_average);
1834 
1835 	seq_printf(s, "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 
wil_link_stats_print_global(struct wil6210_priv * wil,struct seq_file * s,struct wmi_link_stats_global * global)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(s, "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 
wil_link_stats_debugfs_show_vif(struct wil6210_vif * vif,struct seq_file * s)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(s, "no statistics\n");
1883 		return;
1884 	}
1885 
1886 	seq_printf(s, "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, stats);
1895 	}
1896 }
1897 
wil_link_stats_debugfs_show(struct seq_file * s,void * data)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(s, "MID %d ", i);
1915 		if (!vif) {
1916 			seq_puts(s, "unused\n");
1917 			continue;
1918 		}
1919 
1920 		wil_link_stats_debugfs_show_vif(vif, s);
1921 	}
1922 
1923 	mutex_unlock(&wil->vif_mutex);
1924 
1925 	return 0;
1926 }
1927 
wil_link_stats_seq_open(struct inode * inode,struct file * file)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 
wil_link_stats_write(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(len + 1, GFP_KERNEL);
1941 
1942 	if (!kbuf)
1943 		return -ENOMEM;
1944 
1945 	rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
1946 	if (rc != len) {
1947 		kfree(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(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, WMI_LINK_STATS_TYPE_BASIC,
1973 					(cid == -1 ? 0xff : cid), interval);
1974 		if (rc)
1975 			wil_err(wil, "link statistics failed for mid %d\n", i);
1976 	}
1977 	mutex_unlock(&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
wil_link_stats_global_debugfs_show(struct seq_file * s,void * data)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(s, "TSF %lld\n", wil->fw_stats_global.tsf);
1999 	wil_link_stats_print_global(wil, s, &wil->fw_stats_global.stats);
2000 
2001 	return 0;
2002 }
2003 
2004 static int
wil_link_stats_global_seq_open(struct inode * inode,struct file * file)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
wil_link_stats_global_write(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(buf, len, 0, &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, WMI_LINK_STATS_TYPE_GLOBAL, 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 
wil_read_file_led_cfg(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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, sizeof(buf),
2051 		     "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(user_buf, count, ppos,
2057 				       buf, n);
2058 }
2059 
wil_write_file_led_cfg(struct file * file,const char __user * buf_,size_t count,loff_t * ppos)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(buf_, count, 0, &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, 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  */
wil_write_led_blink_time(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(len + 1, GFP_KERNEL);
2100 
2101 	if (!kbuf)
2102 		return -ENOMEM;
2103 
2104 	rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
2105 	if (rc != len) {
2106 		kfree(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(kbuf);
2119 
2120 	if (rc < 0)
2121 		return rc;
2122 	if (rc < 6)
2123 		return -EINVAL;
2124 
2125 	return len;
2126 }
2127 
wil_read_led_blink_time(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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(text, sizeof(text),
2134 		 "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(user_buf, count, ppos, text,
2147 				       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------------*/
fw_capabilities_show(struct seq_file * s,void * data)2157 static int fw_capabilities_show(struct seq_file *s, void *data)
2158 {
2159 	struct wil6210_priv *wil = s->private;
2160 
2161 	seq_printf(s, "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------------*/
fw_version_show(struct seq_file * s,void * data)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(s, "%s\n", wil->fw_version);
2175 	else
2176 		seq_puts(s, "N/A\n");
2177 
2178 	return 0;
2179 }
2180 DEFINE_SHOW_ATTRIBUTE(fw_version);
2181 
2182 /*---------suspend_stats---------*/
wil_write_suspend_stats(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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 
wil_read_suspend_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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(text_size, GFP_KERNEL);
2203 	if (!text)
2204 		return -ENOMEM;
2205 
2206 	n = snprintf(text, text_size,
2207 		     "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(user_buf, count, ppos, text, n);
2230 
2231 	kfree(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---------*/
wil_compressed_rx_status_write(struct file * file,const char __user * buf,size_t len,loff_t * ppos)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(buf, len, 0, &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, true, 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
wil_compressed_rx_status_show(struct seq_file * s,void * data)2272 wil_compressed_rx_status_show(struct seq_file *s, void *data)
2273 {
2274 	struct wil6210_priv *wil = s->private;
2275 
2276 	seq_printf(s, "%d\n", wil->use_compressed_rx_status);
2277 
2278 	return 0;
2279 }
2280 
2281 static int
wil_compressed_rx_status_seq_open(struct inode * inode,struct file * file)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 /*----------------*/
wil6210_debugfs_init_blobs(struct wil6210_priv * wil,struct dentry * dbg)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(name, sizeof(name), "blob_%s", map->name);
2315 		wil_debugfs_create_ioblob(name, 0444, 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 
wil6210_debugfs_init_files(struct wil6210_priv * wil,struct dentry * dbg)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(dbg_files[i].name, dbg_files[i].mode, dbg,
2365 				    wil, 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 
wil6210_debugfs_init_isr(struct wil6210_priv * wil,struct dentry * dbg)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, dbg_icr[i].name, dbg,
2386 					   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 
wil6210_debugfs_init(struct wil6210_priv * wil)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(dbg))
2442 		return -ENODEV;
2443 
2444 	wil->dbg_data.data_arr = kcalloc(dbg_off_count,
2445 					 sizeof(struct wil_debugfs_iomem_data),
2446 					 GFP_KERNEL);
2447 	if (!wil->dbg_data.data_arr) {
2448 		debugfs_remove_recursive(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, wil, dbg_wil_off);
2461 	wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
2462 				    dbg_wil_regs);
2463 	wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
2464 
2465 	wil6210_debugfs_create_pseudo_ISR(wil, dbg);
2466 
2467 	wil6210_debugfs_create_ITR_CNT(wil, dbg);
2468 
2469 	return 0;
2470 }
2471 
wil6210_debugfs_remove(struct wil6210_priv * wil)2472 void wil6210_debugfs_remove(struct wil6210_priv *wil)
2473 {
2474 	int i;
2475 
2476 	debugfs_remove_recursive(wil->debug);
2477 	wil->debug = NULL;
2478 
2479 	kfree(wil->dbg_data.data_arr);
2480 	for (i = 0; i < wil->max_assoc_sta; i++)
2481 		kfree(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, false);
2487 }
2488