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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
blob11d0c79e905626b895c7a7298ed2b6b5ad2d5c8d
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(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
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
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
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
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
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
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
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
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((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_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(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
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
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
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
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
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
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---*/
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
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 */
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
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 */
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
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
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(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 */
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 rc, rc1;
1014
1015 if (cmdlen < 0)
1016 return -EINVAL;
1017
1018 wmi = kmalloc(len, GFP_KERNEL);
1019 if (!wmi)
1020 return -ENOMEM;
1021
1022 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
1023 if (rc < 0) {
1024 kfree(wmi);
1025 return rc;
1026 }
1027
1028 cmd = (cmdlen > 0) ? &wmi[1] : NULL;
1029 cmdid = le16_to_cpu(wmi->command_id);
1030
1031 rc1 = wmi_send(wil, cmdid, vif->mid, cmd, cmdlen);
1032 kfree(wmi);
1033
1034 wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1);
1035
1036 return rc;
1037 }
1038
1039 static const struct file_operations fops_wmi = {
1040 .write = wil_write_file_wmi,
1041 .open = simple_open,
1042 };
1043
1044 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
1045 {
1046 int i = 0;
1047 int len = skb_headlen(skb);
1048 void *p = skb->data;
1049 int nr_frags = skb_shinfo(skb)->nr_frags;
1050
1051 seq_printf(s, " len = %d\n", len);
1052 wil_seq_hexdump(s, p, len, " : ");
1053
1054 if (nr_frags) {
1055 seq_printf(s, " nr_frags = %d\n", nr_frags);
1056 for (i = 0; i < nr_frags; i++) {
1057 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1058
1059 len = skb_frag_size(frag);
1060 p = skb_frag_address_safe(frag);
1061 seq_printf(s, " [%2d] : len = %d\n", i, len);
1062 wil_seq_hexdump(s, p, len, " : ");
1063 }
1064 }
1065 }
1066
1067 /*---------Tx/Rx descriptor------------*/
1068 static int txdesc_show(struct seq_file *s, void *data)
1069 {
1070 struct wil6210_priv *wil = s->private;
1071 struct wil_ring *ring;
1072 bool tx;
1073 int ring_idx = dbg_ring_index;
1074 int txdesc_idx = dbg_txdesc_index;
1075 volatile struct vring_tx_desc *d;
1076 volatile u32 *u;
1077 struct sk_buff *skb;
1078
1079 if (wil->use_enhanced_dma_hw) {
1080 /* RX ring index == 0 */
1081 if (ring_idx >= WIL6210_MAX_TX_RINGS) {
1082 seq_printf(s, "invalid ring index %d\n", ring_idx);
1083 return 0;
1084 }
1085 tx = ring_idx > 0; /* desc ring 0 is reserved for RX */
1086 } else {
1087 /* RX ring index == WIL6210_MAX_TX_RINGS */
1088 if (ring_idx > WIL6210_MAX_TX_RINGS) {
1089 seq_printf(s, "invalid ring index %d\n", ring_idx);
1090 return 0;
1091 }
1092 tx = (ring_idx < WIL6210_MAX_TX_RINGS);
1093 }
1094
1095 ring = tx ? &wil->ring_tx[ring_idx] : &wil->ring_rx;
1096
1097 if (!ring->va) {
1098 if (tx)
1099 seq_printf(s, "No Tx[%2d] RING\n", ring_idx);
1100 else
1101 seq_puts(s, "No Rx RING\n");
1102 return 0;
1103 }
1104
1105 if (txdesc_idx >= ring->size) {
1106 if (tx)
1107 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
1108 ring_idx, txdesc_idx, ring->size);
1109 else
1110 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
1111 txdesc_idx, ring->size);
1112 return 0;
1113 }
1114
1115 /* use struct vring_tx_desc for Rx as well,
1116 * only field used, .dma.length, is the same
1117 */
1118 d = &ring->va[txdesc_idx].tx.legacy;
1119 u = (volatile u32 *)d;
1120 skb = NULL;
1121
1122 if (wil->use_enhanced_dma_hw) {
1123 if (tx) {
1124 skb = ring->ctx ? ring->ctx[txdesc_idx].skb : NULL;
1125 } else if (wil->rx_buff_mgmt.buff_arr) {
1126 struct wil_rx_enhanced_desc *rx_d =
1127 (struct wil_rx_enhanced_desc *)
1128 &ring->va[txdesc_idx].rx.enhanced;
1129 u16 buff_id = le16_to_cpu(rx_d->mac.buff_id);
1130
1131 if (!wil_val_in_range(buff_id, 0,
1132 wil->rx_buff_mgmt.size))
1133 seq_printf(s, "invalid buff_id %d\n", buff_id);
1134 else
1135 skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
1136 }
1137 } else {
1138 skb = ring->ctx[txdesc_idx].skb;
1139 }
1140 if (tx)
1141 seq_printf(s, "Tx[%2d][%3d] = {\n", ring_idx,
1142 txdesc_idx);
1143 else
1144 seq_printf(s, "Rx[%3d] = {\n", txdesc_idx);
1145 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1146 u[0], u[1], u[2], u[3]);
1147 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
1148 u[4], u[5], u[6], u[7]);
1149 seq_printf(s, " SKB = 0x%p\n", skb);
1150
1151 if (skb) {
1152 skb_get(skb);
1153 wil_seq_print_skb(s, skb);
1154 kfree_skb(skb);
1155 }
1156 seq_puts(s, "}\n");
1157
1158 return 0;
1159 }
1160 DEFINE_SHOW_ATTRIBUTE(txdesc);
1161
1162 /*---------Tx/Rx status message------------*/
1163 static int status_msg_show(struct seq_file *s, void *data)
1164 {
1165 struct wil6210_priv *wil = s->private;
1166 int sring_idx = dbg_sring_index;
1167 struct wil_status_ring *sring;
1168 bool tx;
1169 u32 status_msg_idx = dbg_status_msg_index;
1170 u32 *u;
1171
1172 if (sring_idx >= WIL6210_MAX_STATUS_RINGS) {
1173 seq_printf(s, "invalid status ring index %d\n", sring_idx);
1174 return 0;
1175 }
1176
1177 sring = &wil->srings[sring_idx];
1178 tx = !sring->is_rx;
1179
1180 if (!sring->va) {
1181 seq_printf(s, "No %cX status ring\n", tx ? 'T' : 'R');
1182 return 0;
1183 }
1184
1185 if (status_msg_idx >= sring->size) {
1186 seq_printf(s, "%cxDesc index (%d) >= size (%d)\n",
1187 tx ? 'T' : 'R', status_msg_idx, sring->size);
1188 return 0;
1189 }
1190
1191 u = sring->va + (sring->elem_size * status_msg_idx);
1192
1193 seq_printf(s, "%cx[%d][%3d] = {\n",
1194 tx ? 'T' : 'R', sring_idx, status_msg_idx);
1195
1196 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n",
1197 u[0], u[1], u[2], u[3]);
1198 if (!tx && !wil->use_compressed_rx_status)
1199 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n",
1200 u[4], u[5], u[6], u[7]);
1201
1202 seq_puts(s, "}\n");
1203
1204 return 0;
1205 }
1206 DEFINE_SHOW_ATTRIBUTE(status_msg);
1207
1208 static int wil_print_rx_buff(struct seq_file *s, struct list_head *lh)
1209 {
1210 struct wil_rx_buff *it;
1211 int i = 0;
1212
1213 list_for_each_entry(it, lh, list) {
1214 if ((i % 16) == 0 && i != 0)
1215 seq_puts(s, "\n ");
1216 seq_printf(s, "[%4d] ", it->id);
1217 i++;
1218 }
1219 seq_printf(s, "\nNumber of buffers: %u\n", i);
1220
1221 return i;
1222 }
1223
1224 static int rx_buff_mgmt_show(struct seq_file *s, void *data)
1225 {
1226 struct wil6210_priv *wil = s->private;
1227 struct wil_rx_buff_mgmt *rbm = &wil->rx_buff_mgmt;
1228 int num_active;
1229 int num_free;
1230
1231 if (!rbm->buff_arr)
1232 return -EINVAL;
1233
1234 seq_printf(s, " size = %zu\n", rbm->size);
1235 seq_printf(s, " free_list_empty_cnt = %lu\n",
1236 rbm->free_list_empty_cnt);
1237
1238 /* Print active list */
1239 seq_puts(s, " Active list:\n");
1240 num_active = wil_print_rx_buff(s, &rbm->active);
1241 seq_puts(s, "\n Free list:\n");
1242 num_free = wil_print_rx_buff(s, &rbm->free);
1243
1244 seq_printf(s, " Total number of buffers: %u\n",
1245 num_active + num_free);
1246
1247 return 0;
1248 }
1249 DEFINE_SHOW_ATTRIBUTE(rx_buff_mgmt);
1250
1251 /*---------beamforming------------*/
1252 static char *wil_bfstatus_str(u32 status)
1253 {
1254 switch (status) {
1255 case 0:
1256 return "Failed";
1257 case 1:
1258 return "OK";
1259 case 2:
1260 return "Retrying";
1261 default:
1262 return "??";
1263 }
1264 }
1265
1266 static bool is_all_zeros(void * const x_, size_t sz)
1267 {
1268 /* if reply is all-0, ignore this CID */
1269 u32 *x = x_;
1270 int n;
1271
1272 for (n = 0; n < sz / sizeof(*x); n++)
1273 if (x[n])
1274 return false;
1275
1276 return true;
1277 }
1278
1279 static int bf_show(struct seq_file *s, void *data)
1280 {
1281 int rc;
1282 int i;
1283 struct wil6210_priv *wil = s->private;
1284 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
1285 struct wmi_notify_req_cmd cmd = {
1286 .interval_usec = 0,
1287 };
1288 struct {
1289 struct wmi_cmd_hdr wmi;
1290 struct wmi_notify_req_done_event evt;
1291 } __packed reply;
1292
1293 memset(&reply, 0, sizeof(reply));
1294
1295 for (i = 0; i < wil->max_assoc_sta; i++) {
1296 u32 status;
1297
1298 cmd.cid = i;
1299 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid,
1300 &cmd, sizeof(cmd),
1301 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
1302 sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
1303 /* if reply is all-0, ignore this CID */
1304 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
1305 continue;
1306
1307 status = le32_to_cpu(reply.evt.status);
1308 seq_printf(s, "CID %d {\n"
1309 " TSF = 0x%016llx\n"
1310 " TxMCS = %2d TxTpt = %4d\n"
1311 " SQI = %4d\n"
1312 " RSSI = %4d\n"
1313 " Status = 0x%08x %s\n"
1314 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
1315 " Goodput(rx:tx) %4d:%4d\n"
1316 "}\n",
1317 i,
1318 le64_to_cpu(reply.evt.tsf),
1319 le16_to_cpu(reply.evt.bf_mcs),
1320 le32_to_cpu(reply.evt.tx_tpt),
1321 reply.evt.sqi,
1322 reply.evt.rssi,
1323 status, wil_bfstatus_str(status),
1324 le16_to_cpu(reply.evt.my_rx_sector),
1325 le16_to_cpu(reply.evt.my_tx_sector),
1326 le16_to_cpu(reply.evt.other_rx_sector),
1327 le16_to_cpu(reply.evt.other_tx_sector),
1328 le32_to_cpu(reply.evt.rx_goodput),
1329 le32_to_cpu(reply.evt.tx_goodput));
1330 }
1331 return 0;
1332 }
1333 DEFINE_SHOW_ATTRIBUTE(bf);
1334
1335 /*---------temp------------*/
1336 static void print_temp(struct seq_file *s, const char *prefix, s32 t)
1337 {
1338 switch (t) {
1339 case 0:
1340 case WMI_INVALID_TEMPERATURE:
1341 seq_printf(s, "%s N/A\n", prefix);
1342 break;
1343 default:
1344 seq_printf(s, "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""),
1345 abs(t / 1000), abs(t % 1000));
1346 break;
1347 }
1348 }
1349
1350 static int temp_show(struct seq_file *s, void *data)
1351 {
1352 struct wil6210_priv *wil = s->private;
1353 int rc, i;
1354
1355 if (test_bit(WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF,
1356 wil->fw_capabilities)) {
1357 struct wmi_temp_sense_all_done_event sense_all_evt;
1358
1359 wil_dbg_misc(wil,
1360 "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is supported");
1361 rc = wmi_get_all_temperatures(wil, &sense_all_evt);
1362 if (rc) {
1363 seq_puts(s, "Failed\n");
1364 return 0;
1365 }
1366 print_temp(s, "T_mac =",
1367 le32_to_cpu(sense_all_evt.baseband_t1000));
1368 seq_printf(s, "Connected RFs [0x%08x]\n",
1369 sense_all_evt.rf_bitmap);
1370 for (i = 0; i < WMI_MAX_XIF_PORTS_NUM; i++) {
1371 seq_printf(s, "RF[%d] = ", i);
1372 print_temp(s, "",
1373 le32_to_cpu(sense_all_evt.rf_t1000[i]));
1374 }
1375 } else {
1376 s32 t_m, t_r;
1377
1378 wil_dbg_misc(wil,
1379 "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is not supported");
1380 rc = wmi_get_temperature(wil, &t_m, &t_r);
1381 if (rc) {
1382 seq_puts(s, "Failed\n");
1383 return 0;
1384 }
1385 print_temp(s, "T_mac =", t_m);
1386 print_temp(s, "T_radio =", t_r);
1387 }
1388 return 0;
1389 }
1390 DEFINE_SHOW_ATTRIBUTE(temp);
1391
1392 /*---------freq------------*/
1393 static int freq_show(struct seq_file *s, void *data)
1394 {
1395 struct wil6210_priv *wil = s->private;
1396 struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr;
1397 u32 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
1398
1399 seq_printf(s, "Freq = %d\n", freq);
1400
1401 return 0;
1402 }
1403 DEFINE_SHOW_ATTRIBUTE(freq);
1404
1405 /*---------link------------*/
1406 static int link_show(struct seq_file *s, void *data)
1407 {
1408 struct wil6210_priv *wil = s->private;
1409 struct station_info *sinfo;
1410 int i, rc = 0;
1411
1412 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
1413 if (!sinfo)
1414 return -ENOMEM;
1415
1416 for (i = 0; i < wil->max_assoc_sta; i++) {
1417 struct wil_sta_info *p = &wil->sta[i];
1418 char *status = "unknown";
1419 struct wil6210_vif *vif;
1420 u8 mid;
1421
1422 switch (p->status) {
1423 case wil_sta_unused:
1424 status = "unused ";
1425 break;
1426 case wil_sta_conn_pending:
1427 status = "pending ";
1428 break;
1429 case wil_sta_connected:
1430 status = "connected";
1431 break;
1432 }
1433 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1434 seq_printf(s, "[%d][MID %d] %pM %s\n",
1435 i, mid, p->addr, status);
1436
1437 if (p->status != wil_sta_connected)
1438 continue;
1439
1440 vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL;
1441 if (vif) {
1442 rc = wil_cid_fill_sinfo(vif, i, sinfo);
1443 if (rc)
1444 goto out;
1445
1446 seq_printf(s, " Tx_mcs = %d\n", sinfo->txrate.mcs);
1447 seq_printf(s, " Rx_mcs = %d\n", sinfo->rxrate.mcs);
1448 seq_printf(s, " SQ = %d\n", sinfo->signal);
1449 } else {
1450 seq_puts(s, " INVALID MID\n");
1451 }
1452 }
1453
1454 out:
1455 kfree(sinfo);
1456 return rc;
1457 }
1458 DEFINE_SHOW_ATTRIBUTE(link);
1459
1460 /*---------info------------*/
1461 static int info_show(struct seq_file *s, void *data)
1462 {
1463 struct wil6210_priv *wil = s->private;
1464 struct net_device *ndev = wil->main_ndev;
1465 int is_ac = power_supply_is_system_supplied();
1466 int rx = atomic_xchg(&wil->isr_count_rx, 0);
1467 int tx = atomic_xchg(&wil->isr_count_tx, 0);
1468 static ulong rxf_old, txf_old;
1469 ulong rxf = ndev->stats.rx_packets;
1470 ulong txf = ndev->stats.tx_packets;
1471 unsigned int i;
1472
1473 /* >0 : AC; 0 : battery; <0 : error */
1474 seq_printf(s, "AC powered : %d\n", is_ac);
1475 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1476 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1477 rxf_old = rxf;
1478 txf_old = txf;
1479
1480 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1481 " " __stringify(x) : ""
1482
1483 for (i = 0; i < ndev->num_tx_queues; i++) {
1484 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1485 unsigned long state = txq->state;
1486
1487 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1488 CHECK_QSTATE(DRV_XOFF),
1489 CHECK_QSTATE(STACK_XOFF),
1490 CHECK_QSTATE(FROZEN)
1491 );
1492 }
1493 #undef CHECK_QSTATE
1494 return 0;
1495 }
1496 DEFINE_SHOW_ATTRIBUTE(info);
1497
1498 /*---------recovery------------*/
1499 /* mode = [manual|auto]
1500 * state = [idle|pending|running]
1501 */
1502 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1503 size_t count, loff_t *ppos)
1504 {
1505 struct wil6210_priv *wil = file->private_data;
1506 char buf[80];
1507 int n;
1508 static const char * const sstate[] = {"idle", "pending", "running"};
1509
1510 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
1511 no_fw_recovery ? "manual" : "auto",
1512 sstate[wil->recovery_state]);
1513
1514 n = min_t(int, n, sizeof(buf));
1515
1516 return simple_read_from_buffer(user_buf, count, ppos,
1517 buf, n);
1518 }
1519
1520 static ssize_t wil_write_file_recovery(struct file *file,
1521 const char __user *buf_,
1522 size_t count, loff_t *ppos)
1523 {
1524 struct wil6210_priv *wil = file->private_data;
1525 static const char run_command[] = "run";
1526 char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1527 ssize_t rc;
1528
1529 if (wil->recovery_state != fw_recovery_pending) {
1530 wil_err(wil, "No recovery pending\n");
1531 return -EINVAL;
1532 }
1533
1534 if (*ppos != 0) {
1535 wil_err(wil, "Offset [%d]\n", (int)*ppos);
1536 return -EINVAL;
1537 }
1538
1539 if (count > sizeof(buf)) {
1540 wil_err(wil, "Input too long, len = %d\n", (int)count);
1541 return -EINVAL;
1542 }
1543
1544 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
1545 if (rc < 0)
1546 return rc;
1547
1548 buf[rc] = '\0';
1549 if (0 == strcmp(buf, run_command))
1550 wil_set_recovery_state(wil, fw_recovery_running);
1551 else
1552 wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1553
1554 return rc;
1555 }
1556
1557 static const struct file_operations fops_recovery = {
1558 .read = wil_read_file_recovery,
1559 .write = wil_write_file_recovery,
1560 .open = simple_open,
1561 };
1562
1563 /*---------Station matrix------------*/
1564 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1565 {
1566 int i;
1567 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1568 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
1569 unsigned long long drop_dup_mcast = r->drop_dup_mcast;
1570
1571 seq_printf(s, "([%2d]) 0x%03x [", r->buf_size, r->head_seq_num);
1572 for (i = 0; i < r->buf_size; i++) {
1573 if (i == index)
1574 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1575 else
1576 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1577 }
1578 seq_printf(s,
1579 "] total %llu drop %llu (dup %llu + old %llu + dup mcast %llu) last 0x%03x\n",
1580 r->total, drop_dup + drop_old + drop_dup_mcast, drop_dup,
1581 drop_old, drop_dup_mcast, r->ssn_last_drop);
1582 }
1583
1584 static void wil_print_rxtid_crypto(struct seq_file *s, int tid,
1585 struct wil_tid_crypto_rx *c)
1586 {
1587 int i;
1588
1589 for (i = 0; i < 4; i++) {
1590 struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1591
1592 if (cc->key_set)
1593 goto has_keys;
1594 }
1595 return;
1596
1597 has_keys:
1598 if (tid < WIL_STA_TID_NUM)
1599 seq_printf(s, " [%2d] PN", tid);
1600 else
1601 seq_puts(s, " [GR] PN");
1602
1603 for (i = 0; i < 4; i++) {
1604 struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1605
1606 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
1607 cc->pn);
1608 }
1609 seq_puts(s, "\n");
1610 }
1611
1612 static int sta_show(struct seq_file *s, void *data)
1613 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1614 {
1615 struct wil6210_priv *wil = s->private;
1616 int i, tid, mcs;
1617
1618 for (i = 0; i < wil->max_assoc_sta; i++) {
1619 struct wil_sta_info *p = &wil->sta[i];
1620 char *status = "unknown";
1621 u8 aid = 0;
1622 u8 mid;
1623 bool sta_connected = false;
1624
1625 switch (p->status) {
1626 case wil_sta_unused:
1627 status = "unused ";
1628 break;
1629 case wil_sta_conn_pending:
1630 status = "pending ";
1631 break;
1632 case wil_sta_connected:
1633 status = "connected";
1634 aid = p->aid;
1635 break;
1636 }
1637 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1638 if (mid < GET_MAX_VIFS(wil)) {
1639 struct wil6210_vif *vif = wil->vifs[mid];
1640
1641 if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
1642 p->status == wil_sta_connected)
1643 sta_connected = true;
1644 }
1645 /* print roam counter only for connected stations */
1646 if (sta_connected)
1647 seq_printf(s, "[%d] %pM connected (roam counter %d) MID %d AID %d\n",
1648 i, p->addr, p->stats.ft_roams, mid, aid);
1649 else
1650 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i,
1651 p->addr, status, mid, aid);
1652
1653 if (p->status == wil_sta_connected) {
1654 spin_lock_bh(&p->tid_rx_lock);
1655 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1656 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1657 struct wil_tid_crypto_rx *c =
1658 &p->tid_crypto_rx[tid];
1659
1660 if (r) {
1661 seq_printf(s, " [%2d] ", tid);
1662 wil_print_rxtid(s, r);
1663 }
1664
1665 wil_print_rxtid_crypto(s, tid, c);
1666 }
1667 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM,
1668 &p->group_crypto_rx);
1669 spin_unlock_bh(&p->tid_rx_lock);
1670 seq_printf(s,
1671 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n",
1672 p->stats.rx_non_data_frame,
1673 p->stats.rx_short_frame,
1674 p->stats.rx_large_frame,
1675 p->stats.rx_replay);
1676 seq_printf(s,
1677 "mic error %lu, key error %lu, amsdu error %lu, csum error %lu\n",
1678 p->stats.rx_mic_error,
1679 p->stats.rx_key_error,
1680 p->stats.rx_amsdu_error,
1681 p->stats.rx_csum_err);
1682
1683 seq_puts(s, "Rx/MCS:");
1684 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1685 mcs++)
1686 seq_printf(s, " %lld",
1687 p->stats.rx_per_mcs[mcs]);
1688 seq_puts(s, "\n");
1689 }
1690 }
1691
1692 return 0;
1693 }
1694 DEFINE_SHOW_ATTRIBUTE(sta);
1695
1696 static int mids_show(struct seq_file *s, void *data)
1697 {
1698 struct wil6210_priv *wil = s->private;
1699 struct wil6210_vif *vif;
1700 struct net_device *ndev;
1701 int i;
1702
1703 mutex_lock(&wil->vif_mutex);
1704 for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1705 vif = wil->vifs[i];
1706
1707 if (vif) {
1708 ndev = vif_to_ndev(vif);
1709 seq_printf(s, "[%d] %pM %s\n", i, ndev->dev_addr,
1710 ndev->name);
1711 } else {
1712 seq_printf(s, "[%d] unused\n", i);
1713 }
1714 }
1715 mutex_unlock(&wil->vif_mutex);
1716
1717 return 0;
1718 }
1719 DEFINE_SHOW_ATTRIBUTE(mids);
1720
1721 static int wil_tx_latency_debugfs_show(struct seq_file *s, void *data)
1722 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1723 {
1724 struct wil6210_priv *wil = s->private;
1725 int i, bin;
1726
1727 for (i = 0; i < wil->max_assoc_sta; i++) {
1728 struct wil_sta_info *p = &wil->sta[i];
1729 char *status = "unknown";
1730 u8 aid = 0;
1731 u8 mid;
1732
1733 if (!p->tx_latency_bins)
1734 continue;
1735
1736 switch (p->status) {
1737 case wil_sta_unused:
1738 status = "unused ";
1739 break;
1740 case wil_sta_conn_pending:
1741 status = "pending ";
1742 break;
1743 case wil_sta_connected:
1744 status = "connected";
1745 aid = p->aid;
1746 break;
1747 }
1748 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
1749 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, p->addr, status,
1750 mid, aid);
1751
1752 if (p->status == wil_sta_connected) {
1753 u64 num_packets = 0;
1754 u64 tx_latency_avg = p->stats.tx_latency_total_us;
1755
1756 seq_puts(s, "Tx/Latency bin:");
1757 for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) {
1758 seq_printf(s, " %lld",
1759 p->tx_latency_bins[bin]);
1760 num_packets += p->tx_latency_bins[bin];
1761 }
1762 seq_puts(s, "\n");
1763 if (!num_packets)
1764 continue;
1765 do_div(tx_latency_avg, num_packets);
1766 seq_printf(s, "Tx/Latency min/avg/max (us): %d/%lld/%d",
1767 p->stats.tx_latency_min_us,
1768 tx_latency_avg,
1769 p->stats.tx_latency_max_us);
1770
1771 seq_puts(s, "\n");
1772 }
1773 }
1774
1775 return 0;
1776 }
1777
1778 static int wil_tx_latency_seq_open(struct inode *inode, struct file *file)
1779 {
1780 return single_open(file, wil_tx_latency_debugfs_show,
1781 inode->i_private);
1782 }
1783
1784 static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf,
1785 size_t len, loff_t *ppos)
1786 {
1787 struct seq_file *s = file->private_data;
1788 struct wil6210_priv *wil = s->private;
1789 int val, rc, i;
1790 bool enable;
1791
1792 rc = kstrtoint_from_user(buf, len, 0, &val);
1793 if (rc) {
1794 wil_err(wil, "Invalid argument\n");
1795 return rc;
1796 }
1797 if (val == 1)
1798 /* default resolution */
1799 val = 500;
1800 if (val && (val < 50 || val > 1000)) {
1801 wil_err(wil, "Invalid resolution %d\n", val);
1802 return -EINVAL;
1803 }
1804
1805 enable = !!val;
1806 if (wil->tx_latency == enable)
1807 return len;
1808
1809 wil_info(wil, "%s TX latency measurements (resolution %dusec)\n",
1810 enable ? "Enabling" : "Disabling", val);
1811
1812 if (enable) {
1813 size_t sz = sizeof(u64) * WIL_NUM_LATENCY_BINS;
1814
1815 wil->tx_latency_res = val;
1816 for (i = 0; i < wil->max_assoc_sta; i++) {
1817 struct wil_sta_info *sta = &wil->sta[i];
1818
1819 kfree(sta->tx_latency_bins);
1820 sta->tx_latency_bins = kzalloc(sz, GFP_KERNEL);
1821 if (!sta->tx_latency_bins)
1822 return -ENOMEM;
1823 sta->stats.tx_latency_min_us = U32_MAX;
1824 sta->stats.tx_latency_max_us = 0;
1825 sta->stats.tx_latency_total_us = 0;
1826 }
1827 }
1828 wil->tx_latency = enable;
1829
1830 return len;
1831 }
1832
1833 static const struct file_operations fops_tx_latency = {
1834 .open = wil_tx_latency_seq_open,
1835 .release = single_release,
1836 .read = seq_read,
1837 .write = wil_tx_latency_write,
1838 .llseek = seq_lseek,
1839 };
1840
1841 static void wil_link_stats_print_basic(struct wil6210_vif *vif,
1842 struct seq_file *s,
1843 struct wmi_link_stats_basic *basic)
1844 {
1845 char per[5] = "?";
1846
1847 if (basic->per_average != 0xff)
1848 snprintf(per, sizeof(per), "%d%%", basic->per_average);
1849
1850 seq_printf(s, "CID %d {\n"
1851 "\tTxMCS %d TxTpt %d\n"
1852 "\tGoodput(rx:tx) %d:%d\n"
1853 "\tRxBcastFrames %d\n"
1854 "\tRSSI %d SQI %d SNR %d PER %s\n"
1855 "\tRx RFC %d Ant num %d\n"
1856 "\tSectors(rx:tx) my %d:%d peer %d:%d\n"
1857 "}\n",
1858 basic->cid,
1859 basic->bf_mcs, le32_to_cpu(basic->tx_tpt),
1860 le32_to_cpu(basic->rx_goodput),
1861 le32_to_cpu(basic->tx_goodput),
1862 le32_to_cpu(basic->rx_bcast_frames),
1863 basic->rssi, basic->sqi, basic->snr, per,
1864 basic->selected_rfc, basic->rx_effective_ant_num,
1865 basic->my_rx_sector, basic->my_tx_sector,
1866 basic->other_rx_sector, basic->other_tx_sector);
1867 }
1868
1869 static void wil_link_stats_print_global(struct wil6210_priv *wil,
1870 struct seq_file *s,
1871 struct wmi_link_stats_global *global)
1872 {
1873 seq_printf(s, "Frames(rx:tx) %d:%d\n"
1874 "BA Frames(rx:tx) %d:%d\n"
1875 "Beacons %d\n"
1876 "Rx Errors (MIC:CRC) %d:%d\n"
1877 "Tx Errors (no ack) %d\n",
1878 le32_to_cpu(global->rx_frames),
1879 le32_to_cpu(global->tx_frames),
1880 le32_to_cpu(global->rx_ba_frames),
1881 le32_to_cpu(global->tx_ba_frames),
1882 le32_to_cpu(global->tx_beacons),
1883 le32_to_cpu(global->rx_mic_errors),
1884 le32_to_cpu(global->rx_crc_errors),
1885 le32_to_cpu(global->tx_fail_no_ack));
1886 }
1887
1888 static void wil_link_stats_debugfs_show_vif(struct wil6210_vif *vif,
1889 struct seq_file *s)
1890 {
1891 struct wil6210_priv *wil = vif_to_wil(vif);
1892 struct wmi_link_stats_basic *stats;
1893 int i;
1894
1895 if (!vif->fw_stats_ready) {
1896 seq_puts(s, "no statistics\n");
1897 return;
1898 }
1899
1900 seq_printf(s, "TSF %lld\n", vif->fw_stats_tsf);
1901 for (i = 0; i < wil->max_assoc_sta; i++) {
1902 if (wil->sta[i].status == wil_sta_unused)
1903 continue;
1904 if (wil->sta[i].mid != vif->mid)
1905 continue;
1906
1907 stats = &wil->sta[i].fw_stats_basic;
1908 wil_link_stats_print_basic(vif, s, stats);
1909 }
1910 }
1911
1912 static int wil_link_stats_debugfs_show(struct seq_file *s, void *data)
1913 {
1914 struct wil6210_priv *wil = s->private;
1915 struct wil6210_vif *vif;
1916 int i, rc;
1917
1918 rc = mutex_lock_interruptible(&wil->vif_mutex);
1919 if (rc)
1920 return rc;
1921
1922 /* iterate over all MIDs and show per-cid statistics. Then show the
1923 * global statistics
1924 */
1925 for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1926 vif = wil->vifs[i];
1927
1928 seq_printf(s, "MID %d ", i);
1929 if (!vif) {
1930 seq_puts(s, "unused\n");
1931 continue;
1932 }
1933
1934 wil_link_stats_debugfs_show_vif(vif, s);
1935 }
1936
1937 mutex_unlock(&wil->vif_mutex);
1938
1939 return 0;
1940 }
1941
1942 static int wil_link_stats_seq_open(struct inode *inode, struct file *file)
1943 {
1944 return single_open(file, wil_link_stats_debugfs_show, inode->i_private);
1945 }
1946
1947 static ssize_t wil_link_stats_write(struct file *file, const char __user *buf,
1948 size_t len, loff_t *ppos)
1949 {
1950 struct seq_file *s = file->private_data;
1951 struct wil6210_priv *wil = s->private;
1952 int cid, interval, rc, i;
1953 struct wil6210_vif *vif;
1954 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
1955
1956 if (!kbuf)
1957 return -ENOMEM;
1958
1959 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
1960 if (rc != len) {
1961 kfree(kbuf);
1962 return rc >= 0 ? -EIO : rc;
1963 }
1964
1965 kbuf[len] = '\0';
1966 /* specify cid (use -1 for all cids) and snapshot interval in ms */
1967 rc = sscanf(kbuf, "%d %d", &cid, &interval);
1968 kfree(kbuf);
1969 if (rc < 0)
1970 return rc;
1971 if (rc < 2 || interval < 0)
1972 return -EINVAL;
1973
1974 wil_info(wil, "request link statistics, cid %d interval %d\n",
1975 cid, interval);
1976
1977 rc = mutex_lock_interruptible(&wil->vif_mutex);
1978 if (rc)
1979 return rc;
1980
1981 for (i = 0; i < GET_MAX_VIFS(wil); i++) {
1982 vif = wil->vifs[i];
1983 if (!vif)
1984 continue;
1985
1986 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_BASIC,
1987 (cid == -1 ? 0xff : cid), interval);
1988 if (rc)
1989 wil_err(wil, "link statistics failed for mid %d\n", i);
1990 }
1991 mutex_unlock(&wil->vif_mutex);
1992
1993 return len;
1994 }
1995
1996 static const struct file_operations fops_link_stats = {
1997 .open = wil_link_stats_seq_open,
1998 .release = single_release,
1999 .read = seq_read,
2000 .write = wil_link_stats_write,
2001 .llseek = seq_lseek,
2002 };
2003
2004 static int
2005 wil_link_stats_global_debugfs_show(struct seq_file *s, void *data)
2006 {
2007 struct wil6210_priv *wil = s->private;
2008
2009 if (!wil->fw_stats_global.ready)
2010 return 0;
2011
2012 seq_printf(s, "TSF %lld\n", wil->fw_stats_global.tsf);
2013 wil_link_stats_print_global(wil, s, &wil->fw_stats_global.stats);
2014
2015 return 0;
2016 }
2017
2018 static int
2019 wil_link_stats_global_seq_open(struct inode *inode, struct file *file)
2020 {
2021 return single_open(file, wil_link_stats_global_debugfs_show,
2022 inode->i_private);
2023 }
2024
2025 static ssize_t
2026 wil_link_stats_global_write(struct file *file, const char __user *buf,
2027 size_t len, loff_t *ppos)
2028 {
2029 struct seq_file *s = file->private_data;
2030 struct wil6210_priv *wil = s->private;
2031 int interval, rc;
2032 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
2033
2034 /* specify snapshot interval in ms */
2035 rc = kstrtoint_from_user(buf, len, 0, &interval);
2036 if (rc || interval < 0) {
2037 wil_err(wil, "Invalid argument\n");
2038 return -EINVAL;
2039 }
2040
2041 wil_info(wil, "request global link stats, interval %d\n", interval);
2042
2043 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_GLOBAL, 0, interval);
2044 if (rc)
2045 wil_err(wil, "global link stats failed %d\n", rc);
2046
2047 return rc ? rc : len;
2048 }
2049
2050 static const struct file_operations fops_link_stats_global = {
2051 .open = wil_link_stats_global_seq_open,
2052 .release = single_release,
2053 .read = seq_read,
2054 .write = wil_link_stats_global_write,
2055 .llseek = seq_lseek,
2056 };
2057
2058 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf,
2059 size_t count, loff_t *ppos)
2060 {
2061 char buf[80];
2062 int n;
2063
2064 n = snprintf(buf, sizeof(buf),
2065 "led_id is set to %d, echo 1 to enable, 0 to disable\n",
2066 led_id);
2067
2068 n = min_t(int, n, sizeof(buf));
2069
2070 return simple_read_from_buffer(user_buf, count, ppos,
2071 buf, n);
2072 }
2073
2074 static ssize_t wil_write_file_led_cfg(struct file *file,
2075 const char __user *buf_,
2076 size_t count, loff_t *ppos)
2077 {
2078 struct wil6210_priv *wil = file->private_data;
2079 int val;
2080 int rc;
2081
2082 rc = kstrtoint_from_user(buf_, count, 0, &val);
2083 if (rc) {
2084 wil_err(wil, "Invalid argument\n");
2085 return rc;
2086 }
2087
2088 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id);
2089 rc = wmi_led_cfg(wil, val);
2090 if (rc) {
2091 wil_info(wil, "%s led %d failed\n",
2092 val ? "Enabling" : "Disabling", led_id);
2093 return rc;
2094 }
2095
2096 return count;
2097 }
2098
2099 static const struct file_operations fops_led_cfg = {
2100 .read = wil_read_file_led_cfg,
2101 .write = wil_write_file_led_cfg,
2102 .open = simple_open,
2103 };
2104
2105 /* led_blink_time, write:
2106 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast>
2107 */
2108 static ssize_t wil_write_led_blink_time(struct file *file,
2109 const char __user *buf,
2110 size_t len, loff_t *ppos)
2111 {
2112 int rc;
2113 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
2114
2115 if (!kbuf)
2116 return -ENOMEM;
2117
2118 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
2119 if (rc != len) {
2120 kfree(kbuf);
2121 return rc >= 0 ? -EIO : rc;
2122 }
2123
2124 kbuf[len] = '\0';
2125 rc = sscanf(kbuf, "%d %d %d %d %d %d",
2126 &led_blink_time[WIL_LED_TIME_SLOW].on_ms,
2127 &led_blink_time[WIL_LED_TIME_SLOW].off_ms,
2128 &led_blink_time[WIL_LED_TIME_MED].on_ms,
2129 &led_blink_time[WIL_LED_TIME_MED].off_ms,
2130 &led_blink_time[WIL_LED_TIME_FAST].on_ms,
2131 &led_blink_time[WIL_LED_TIME_FAST].off_ms);
2132 kfree(kbuf);
2133
2134 if (rc < 0)
2135 return rc;
2136 if (rc < 6)
2137 return -EINVAL;
2138
2139 return len;
2140 }
2141
2142 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf,
2143 size_t count, loff_t *ppos)
2144 {
2145 static char text[400];
2146
2147 snprintf(text, sizeof(text),
2148 "To set led blink on/off time variables write:\n"
2149 "<blink_on_slow> <blink_off_slow> <blink_on_med> "
2150 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n"
2151 "The current values are:\n"
2152 "%d %d %d %d %d %d\n",
2153 led_blink_time[WIL_LED_TIME_SLOW].on_ms,
2154 led_blink_time[WIL_LED_TIME_SLOW].off_ms,
2155 led_blink_time[WIL_LED_TIME_MED].on_ms,
2156 led_blink_time[WIL_LED_TIME_MED].off_ms,
2157 led_blink_time[WIL_LED_TIME_FAST].on_ms,
2158 led_blink_time[WIL_LED_TIME_FAST].off_ms);
2159
2160 return simple_read_from_buffer(user_buf, count, ppos, text,
2161 sizeof(text));
2162 }
2163
2164 static const struct file_operations fops_led_blink_time = {
2165 .read = wil_read_led_blink_time,
2166 .write = wil_write_led_blink_time,
2167 .open = simple_open,
2168 };
2169
2170 /*---------FW capabilities------------*/
2171 static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data)
2172 {
2173 struct wil6210_priv *wil = s->private;
2174
2175 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX,
2176 wil->fw_capabilities);
2177
2178 return 0;
2179 }
2180
2181 static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file)
2182 {
2183 return single_open(file, wil_fw_capabilities_debugfs_show,
2184 inode->i_private);
2185 }
2186
2187 static const struct file_operations fops_fw_capabilities = {
2188 .open = wil_fw_capabilities_seq_open,
2189 .release = single_release,
2190 .read = seq_read,
2191 .llseek = seq_lseek,
2192 };
2193
2194 /*---------FW version------------*/
2195 static int wil_fw_version_debugfs_show(struct seq_file *s, void *data)
2196 {
2197 struct wil6210_priv *wil = s->private;
2198
2199 if (wil->fw_version[0])
2200 seq_printf(s, "%s\n", wil->fw_version);
2201 else
2202 seq_puts(s, "N/A\n");
2203
2204 return 0;
2205 }
2206
2207 static int wil_fw_version_seq_open(struct inode *inode, struct file *file)
2208 {
2209 return single_open(file, wil_fw_version_debugfs_show,
2210 inode->i_private);
2211 }
2212
2213 static const struct file_operations fops_fw_version = {
2214 .open = wil_fw_version_seq_open,
2215 .release = single_release,
2216 .read = seq_read,
2217 .llseek = seq_lseek,
2218 };
2219
2220 /*---------suspend_stats---------*/
2221 static ssize_t wil_write_suspend_stats(struct file *file,
2222 const char __user *buf,
2223 size_t len, loff_t *ppos)
2224 {
2225 struct wil6210_priv *wil = file->private_data;
2226
2227 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));
2228
2229 return len;
2230 }
2231
2232 static ssize_t wil_read_suspend_stats(struct file *file,
2233 char __user *user_buf,
2234 size_t count, loff_t *ppos)
2235 {
2236 struct wil6210_priv *wil = file->private_data;
2237 char *text;
2238 int n, ret, text_size = 500;
2239
2240 text = kmalloc(text_size, GFP_KERNEL);
2241 if (!text)
2242 return -ENOMEM;
2243
2244 n = snprintf(text, text_size,
2245 "Radio on suspend statistics:\n"
2246 "successful suspends:%ld failed suspends:%ld\n"
2247 "successful resumes:%ld failed resumes:%ld\n"
2248 "rejected by device:%ld\n"
2249 "Radio off suspend statistics:\n"
2250 "successful suspends:%ld failed suspends:%ld\n"
2251 "successful resumes:%ld failed resumes:%ld\n"
2252 "General statistics:\n"
2253 "rejected by host:%ld\n",
2254 wil->suspend_stats.r_on.successful_suspends,
2255 wil->suspend_stats.r_on.failed_suspends,
2256 wil->suspend_stats.r_on.successful_resumes,
2257 wil->suspend_stats.r_on.failed_resumes,
2258 wil->suspend_stats.rejected_by_device,
2259 wil->suspend_stats.r_off.successful_suspends,
2260 wil->suspend_stats.r_off.failed_suspends,
2261 wil->suspend_stats.r_off.successful_resumes,
2262 wil->suspend_stats.r_off.failed_resumes,
2263 wil->suspend_stats.rejected_by_host);
2264
2265 n = min_t(int, n, text_size);
2266
2267 ret = simple_read_from_buffer(user_buf, count, ppos, text, n);
2268
2269 kfree(text);
2270
2271 return ret;
2272 }
2273
2274 static const struct file_operations fops_suspend_stats = {
2275 .read = wil_read_suspend_stats,
2276 .write = wil_write_suspend_stats,
2277 .open = simple_open,
2278 };
2279
2280 /*---------compressed_rx_status---------*/
2281 static ssize_t wil_compressed_rx_status_write(struct file *file,
2282 const char __user *buf,
2283 size_t len, loff_t *ppos)
2284 {
2285 struct seq_file *s = file->private_data;
2286 struct wil6210_priv *wil = s->private;
2287 int compressed_rx_status;
2288 int rc;
2289
2290 rc = kstrtoint_from_user(buf, len, 0, &compressed_rx_status);
2291 if (rc) {
2292 wil_err(wil, "Invalid argument\n");
2293 return rc;
2294 }
2295
2296 if (wil_has_active_ifaces(wil, true, false)) {
2297 wil_err(wil, "cannot change edma config after iface is up\n");
2298 return -EPERM;
2299 }
2300
2301 wil_info(wil, "%sable compressed_rx_status\n",
2302 compressed_rx_status ? "En" : "Dis");
2303
2304 wil->use_compressed_rx_status = compressed_rx_status;
2305
2306 return len;
2307 }
2308
2309 static int
2310 wil_compressed_rx_status_show(struct seq_file *s, void *data)
2311 {
2312 struct wil6210_priv *wil = s->private;
2313
2314 seq_printf(s, "%d\n", wil->use_compressed_rx_status);
2315
2316 return 0;
2317 }
2318
2319 static int
2320 wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file)
2321 {
2322 return single_open(file, wil_compressed_rx_status_show,
2323 inode->i_private);
2324 }
2325
2326 static const struct file_operations fops_compressed_rx_status = {
2327 .open = wil_compressed_rx_status_seq_open,
2328 .release = single_release,
2329 .read = seq_read,
2330 .write = wil_compressed_rx_status_write,
2331 .llseek = seq_lseek,
2332 };
2333
2334 /*----------------*/
2335 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
2336 struct dentry *dbg)
2337 {
2338 int i;
2339 char name[32];
2340
2341 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
2342 struct wil_blob_wrapper *wil_blob = &wil->blobs[i];
2343 struct debugfs_blob_wrapper *blob = &wil_blob->blob;
2344 const struct fw_map *map = &fw_mapping[i];
2345
2346 if (!map->name)
2347 continue;
2348
2349 wil_blob->wil = wil;
2350 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
2351 blob->size = map->to - map->from;
2352 snprintf(name, sizeof(name), "blob_%s", map->name);
2353 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob);
2354 }
2355 }
2356
2357 /* misc files */
2358 static const struct {
2359 const char *name;
2360 umode_t mode;
2361 const struct file_operations *fops;
2362 } dbg_files[] = {
2363 {"mbox", 0444, &mbox_fops},
2364 {"rings", 0444, &ring_fops},
2365 {"stations", 0444, &sta_fops},
2366 {"mids", 0444, &mids_fops},
2367 {"desc", 0444, &txdesc_fops},
2368 {"bf", 0444, &bf_fops},
2369 {"mem_val", 0644, &memread_fops},
2370 {"rxon", 0244, &fops_rxon},
2371 {"tx_mgmt", 0244, &fops_txmgmt},
2372 {"wmi_send", 0244, &fops_wmi},
2373 {"back", 0644, &fops_back},
2374 {"pmccfg", 0644, &fops_pmccfg},
2375 {"pmcdata", 0444, &fops_pmcdata},
2376 {"pmcring", 0444, &fops_pmcring},
2377 {"temp", 0444, &temp_fops},
2378 {"freq", 0444, &freq_fops},
2379 {"link", 0444, &link_fops},
2380 {"info", 0444, &info_fops},
2381 {"recovery", 0644, &fops_recovery},
2382 {"led_cfg", 0644, &fops_led_cfg},
2383 {"led_blink_time", 0644, &fops_led_blink_time},
2384 {"fw_capabilities", 0444, &fops_fw_capabilities},
2385 {"fw_version", 0444, &fops_fw_version},
2386 {"suspend_stats", 0644, &fops_suspend_stats},
2387 {"compressed_rx_status", 0644, &fops_compressed_rx_status},
2388 {"srings", 0444, &srings_fops},
2389 {"status_msg", 0444, &status_msg_fops},
2390 {"rx_buff_mgmt", 0444, &rx_buff_mgmt_fops},
2391 {"tx_latency", 0644, &fops_tx_latency},
2392 {"link_stats", 0644, &fops_link_stats},
2393 {"link_stats_global", 0644, &fops_link_stats_global},
2394 {"rbufcap", 0244, &fops_rbufcap},
2395 };
2396
2397 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
2398 struct dentry *dbg)
2399 {
2400 int i;
2401
2402 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
2403 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
2404 wil, dbg_files[i].fops);
2405 }
2406
2407 /* interrupt control blocks */
2408 static const struct {
2409 const char *name;
2410 u32 icr_off;
2411 } dbg_icr[] = {
2412 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
2413 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
2414 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
2415 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
2416 };
2417
2418 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
2419 struct dentry *dbg)
2420 {
2421 int i;
2422
2423 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
2424 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
2425 dbg_icr[i].icr_off);
2426 }
2427
2428 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
2429 offsetof(struct wil6210_priv, name), type}
2430
2431 /* fields in struct wil6210_priv */
2432 static const struct dbg_off dbg_wil_off[] = {
2433 WIL_FIELD(status[0], 0644, doff_ulong),
2434 WIL_FIELD(hw_version, 0444, doff_x32),
2435 WIL_FIELD(recovery_count, 0444, doff_u32),
2436 WIL_FIELD(discovery_mode, 0644, doff_u8),
2437 WIL_FIELD(chip_revision, 0444, doff_u8),
2438 WIL_FIELD(abft_len, 0644, doff_u8),
2439 WIL_FIELD(wakeup_trigger, 0644, doff_u8),
2440 WIL_FIELD(ring_idle_trsh, 0644, doff_u32),
2441 WIL_FIELD(num_rx_status_rings, 0644, doff_u8),
2442 WIL_FIELD(rx_status_ring_order, 0644, doff_u32),
2443 WIL_FIELD(tx_status_ring_order, 0644, doff_u32),
2444 WIL_FIELD(rx_buff_id_count, 0644, doff_u32),
2445 WIL_FIELD(amsdu_en, 0644, doff_u8),
2446 {},
2447 };
2448
2449 static const struct dbg_off dbg_wil_regs[] = {
2450 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
2451 doff_io32},
2452 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
2453 {"RGF_USER_USAGE_2", 0444, HOSTADDR(RGF_USER_USAGE_2), doff_io32},
2454 {},
2455 };
2456
2457 /* static parameters */
2458 static const struct dbg_off dbg_statics[] = {
2459 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32},
2460 {"ring_index", 0644, (ulong)&dbg_ring_index, doff_u32},
2461 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32},
2462 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8},
2463 {"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32},
2464 {"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32},
2465 {"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8},
2466 {},
2467 };
2468
2469 static const int dbg_off_count = 4 * (ARRAY_SIZE(isr_off) - 1) +
2470 ARRAY_SIZE(dbg_wil_regs) - 1 +
2471 ARRAY_SIZE(pseudo_isr_off) - 1 +
2472 ARRAY_SIZE(lgc_itr_cnt_off) - 1 +
2473 ARRAY_SIZE(tx_itr_cnt_off) - 1 +
2474 ARRAY_SIZE(rx_itr_cnt_off) - 1;
2475
2476 int wil6210_debugfs_init(struct wil6210_priv *wil)
2477 {
2478 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
2479 wil_to_wiphy(wil)->debugfsdir);
2480 if (IS_ERR_OR_NULL(dbg))
2481 return -ENODEV;
2482
2483 wil->dbg_data.data_arr = kcalloc(dbg_off_count,
2484 sizeof(struct wil_debugfs_iomem_data),
2485 GFP_KERNEL);
2486 if (!wil->dbg_data.data_arr) {
2487 debugfs_remove_recursive(dbg);
2488 wil->debug = NULL;
2489 return -ENOMEM;
2490 }
2491
2492 wil->dbg_data.iomem_data_count = 0;
2493
2494 wil_pmc_init(wil);
2495
2496 wil6210_debugfs_init_files(wil, dbg);
2497 wil6210_debugfs_init_isr(wil, dbg);
2498 wil6210_debugfs_init_blobs(wil, dbg);
2499 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
2500 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
2501 dbg_wil_regs);
2502 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
2503
2504 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
2505
2506 wil6210_debugfs_create_ITR_CNT(wil, dbg);
2507
2508 return 0;
2509 }
2510
2511 void wil6210_debugfs_remove(struct wil6210_priv *wil)
2512 {
2513 int i;
2514
2515 debugfs_remove_recursive(wil->debug);
2516 wil->debug = NULL;
2517
2518 kfree(wil->dbg_data.data_arr);
2519 for (i = 0; i < wil->max_assoc_sta; i++)
2520 kfree(wil->sta[i].tx_latency_bins);
2521
2522 /* free pmc memory without sending command to fw, as it will
2523 * be reset on the way down anyway
2524 */
2525 wil_pmc_free(wil, false);
2526 }
Linux with added FPC-III support