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drm/rockchip: Don't change hdmi reference clock rate
[drm/drm-misc.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
blobc021ebcddee76fb1b57cbfe6443eadd90b20fd45
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 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
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------------*/
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------------*/
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
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
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------------*/
1246 static char *wil_bfstatus_str(u32 status)
1247 {
1248 switch (status) {
1249 case 0:
1250 return "Failed";
1251 case 1:
1252 return "OK";
1253 case 2:
1254 return "Retrying";
1255 default:
1256 return "??";
1257 }
1258 }
1259
1260 static bool is_all_zeros(void * const x_, size_t sz)
1261 {
1262 /* if reply is all-0, ignore this CID */
1263 u32 *x = x_;
1264 int n;
1265
1266 for (n = 0; n < sz / sizeof(*x); n++)
1267 if (x[n])
1268 return false;
1269
1270 return true;
1271 }
1272
1273 static int bf_show(struct seq_file *s, void *data)
1274 {
1275 int rc;
1276 int i;
1277 struct wil6210_priv *wil = s->private;
1278 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
1279 struct wmi_notify_req_cmd cmd = {
1280 .interval_usec = 0,
1281 };
1282 struct {
1283 struct wmi_cmd_hdr wmi;
1284 struct wmi_notify_req_done_event evt;
1285 } __packed reply;
1286
1287 memset(&reply, 0, sizeof(reply));
1288
1289 for (i = 0; i < wil->max_assoc_sta; i++) {
1290 u32 status;
1291 u8 bf_mcs;
1292
1293 cmd.cid = i;
1294 rc = wmi_call(wil, 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------------*/
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
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------------*/
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------------*/
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 */
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
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------------*/
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
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
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
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
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
1763 static int wil_tx_latency_seq_open(struct inode *inode, struct file *file)
1764 {
1765 return single_open(file, wil_tx_latency_debugfs_show,
1766 inode->i_private);
1767 }
1768
1769 static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf,
1770 size_t len, loff_t *ppos)
1771 {
1772 struct seq_file *s = file->private_data;
1773 struct wil6210_priv *wil = s->private;
1774 int val, rc, i;
1775 bool enable;
1776
1777 rc = kstrtoint_from_user(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
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
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
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
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
1928 static int wil_link_stats_seq_open(struct inode *inode, struct file *file)
1929 {
1930 return single_open(file, wil_link_stats_debugfs_show, inode->i_private);
1931 }
1932
1933 static ssize_t wil_link_stats_write(struct file *file, const char __user *buf,
1934 size_t len, loff_t *ppos)
1935 {
1936 struct seq_file *s = file->private_data;
1937 struct wil6210_priv *wil = s->private;
1938 int cid, interval, rc, i;
1939 struct wil6210_vif *vif;
1940 char *kbuf = kmalloc(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
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
2005 wil_link_stats_global_seq_open(struct inode *inode, struct file *file)
2006 {
2007 return single_open(file, wil_link_stats_global_debugfs_show,
2008 inode->i_private);
2009 }
2010
2011 static ssize_t
2012 wil_link_stats_global_write(struct file *file, const char __user *buf,
2013 size_t len, loff_t *ppos)
2014 {
2015 struct seq_file *s = file->private_data;
2016 struct wil6210_priv *wil = s->private;
2017 int interval, rc;
2018 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
2019
2020 /* specify snapshot interval in ms */
2021 rc = kstrtoint_from_user(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
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
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 */
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
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------------*/
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------------*/
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---------*/
2183 static ssize_t wil_write_suspend_stats(struct file *file,
2184 const char __user *buf,
2185 size_t len, loff_t *ppos)
2186 {
2187 struct wil6210_priv *wil = file->private_data;
2188
2189 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));
2190
2191 return len;
2192 }
2193
2194 static ssize_t wil_read_suspend_stats(struct file *file,
2195 char __user *user_buf,
2196 size_t count, loff_t *ppos)
2197 {
2198 struct wil6210_priv *wil = file->private_data;
2199 char *text;
2200 int n, ret, text_size = 500;
2201
2202 text = kmalloc(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---------*/
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
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
2282 wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file)
2283 {
2284 return single_open(file, wil_compressed_rx_status_show,
2285 inode->i_private);
2286 }
2287
2288 static const struct file_operations fops_compressed_rx_status = {
2289 .open = wil_compressed_rx_status_seq_open,
2290 .release = single_release,
2291 .read = seq_read,
2292 .write = wil_compressed_rx_status_write,
2293 .llseek = seq_lseek,
2294 };
2295
2296 /*----------------*/
2297 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
2298 struct dentry *dbg)
2299 {
2300 int i;
2301 char name[32];
2302
2303 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
2304 struct wil_blob_wrapper *wil_blob = &wil->blobs[i];
2305 struct debugfs_blob_wrapper *blob = &wil_blob->blob;
2306 const struct fw_map *map = &fw_mapping[i];
2307
2308 if (!map->name)
2309 continue;
2310
2311 wil_blob->wil = wil;
2312 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
2313 blob->size = map->to - map->from;
2314 snprintf(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
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
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
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
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 }
Kernel DRM miscellaneous fixes and cross-tree changes