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Linux 4.4.145
[linux/fpc-iii.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
blob97bc186f9728247a0048476065d17fe0021a3573
1 /*
2 * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/module.h>
18 #include <linux/debugfs.h>
19 #include <linux/seq_file.h>
20 #include <linux/pci.h>
21 #include <linux/rtnetlink.h>
22 #include <linux/power_supply.h>
23
24 #include "wil6210.h"
25 #include "wmi.h"
26 #include "txrx.h"
27 #include "pmc.h"
28
29 /* Nasty hack. Better have per device instances */
30 static u32 mem_addr;
31 static u32 dbg_txdesc_index;
32 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
33 u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */
34
35 enum dbg_off_type {
36 doff_u32 = 0,
37 doff_x32 = 1,
38 doff_ulong = 2,
39 doff_io32 = 3,
40 };
41
42 /* offset to "wil" */
43 struct dbg_off {
44 const char *name;
45 umode_t mode;
46 ulong off;
47 enum dbg_off_type type;
48 };
49
50 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
51 const char *name, struct vring *vring,
52 char _s, char _h)
53 {
54 void __iomem *x = wmi_addr(wil, vring->hwtail);
55 u32 v;
56
57 seq_printf(s, "VRING %s = {\n", name);
58 seq_printf(s, " pa = %pad\n", &vring->pa);
59 seq_printf(s, " va = 0x%p\n", vring->va);
60 seq_printf(s, " size = %d\n", vring->size);
61 seq_printf(s, " swtail = %d\n", vring->swtail);
62 seq_printf(s, " swhead = %d\n", vring->swhead);
63 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
64 if (x) {
65 v = readl(x);
66 seq_printf(s, "0x%08x = %d\n", v, v);
67 } else {
68 seq_puts(s, "???\n");
69 }
70
71 if (vring->va && (vring->size < 1025)) {
72 uint i;
73
74 for (i = 0; i < vring->size; i++) {
75 volatile struct vring_tx_desc *d = &vring->va[i].tx;
76
77 if ((i % 64) == 0 && (i != 0))
78 seq_puts(s, "\n");
79 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
80 _s : (vring->ctx[i].skb ? _h : 'h'));
81 }
82 seq_puts(s, "\n");
83 }
84 seq_puts(s, "}\n");
85 }
86
87 static int wil_vring_debugfs_show(struct seq_file *s, void *data)
88 {
89 uint i;
90 struct wil6210_priv *wil = s->private;
91
92 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
93
94 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
95 struct vring *vring = &wil->vring_tx[i];
96 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
97
98 if (vring->va) {
99 int cid = wil->vring2cid_tid[i][0];
100 int tid = wil->vring2cid_tid[i][1];
101 u32 swhead = vring->swhead;
102 u32 swtail = vring->swtail;
103 int used = (vring->size + swhead - swtail)
104 % vring->size;
105 int avail = vring->size - used - 1;
106 char name[10];
107 char sidle[10];
108 /* performance monitoring */
109 cycles_t now = get_cycles();
110 uint64_t idle = txdata->idle * 100;
111 uint64_t total = now - txdata->begin;
112
113 if (total != 0) {
114 do_div(idle, total);
115 snprintf(sidle, sizeof(sidle), "%3d%%",
116 (int)idle);
117 } else {
118 snprintf(sidle, sizeof(sidle), "N/A");
119 }
120 txdata->begin = now;
121 txdata->idle = 0ULL;
122
123 snprintf(name, sizeof(name), "tx_%2d", i);
124
125 if (cid < WIL6210_MAX_CID)
126 seq_printf(s,
127 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
128 wil->sta[cid].addr, cid, tid,
129 txdata->dot1x_open ? "+" : "-",
130 txdata->agg_wsize,
131 txdata->agg_timeout,
132 txdata->agg_amsdu ? "+" : "-",
133 used, avail, sidle);
134 else
135 seq_printf(s,
136 "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
137 txdata->dot1x_open ? "+" : "-",
138 used, avail, sidle);
139
140 wil_print_vring(s, wil, name, vring, '_', 'H');
141 }
142 }
143
144 return 0;
145 }
146
147 static int wil_vring_seq_open(struct inode *inode, struct file *file)
148 {
149 return single_open(file, wil_vring_debugfs_show, inode->i_private);
150 }
151
152 static const struct file_operations fops_vring = {
153 .open = wil_vring_seq_open,
154 .release = single_release,
155 .read = seq_read,
156 .llseek = seq_lseek,
157 };
158
159 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
160 const char *prefix)
161 {
162 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false);
163 }
164
165 static void wil_print_ring(struct seq_file *s, const char *prefix,
166 void __iomem *off)
167 {
168 struct wil6210_priv *wil = s->private;
169 struct wil6210_mbox_ring r;
170 int rsize;
171 uint i;
172
173 wil_memcpy_fromio_32(&r, off, sizeof(r));
174 wil_mbox_ring_le2cpus(&r);
175 /*
176 * we just read memory block from NIC. This memory may be
177 * garbage. Check validity before using it.
178 */
179 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
180
181 seq_printf(s, "ring %s = {\n", prefix);
182 seq_printf(s, " base = 0x%08x\n", r.base);
183 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
184 seq_printf(s, " tail = 0x%08x\n", r.tail);
185 seq_printf(s, " head = 0x%08x\n", r.head);
186 seq_printf(s, " entry size = %d\n", r.entry_size);
187
188 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
189 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
190 sizeof(struct wil6210_mbox_ring_desc));
191 goto out;
192 }
193
194 if (!wmi_addr(wil, r.base) ||
195 !wmi_addr(wil, r.tail) ||
196 !wmi_addr(wil, r.head)) {
197 seq_puts(s, " ??? pointers are garbage?\n");
198 goto out;
199 }
200
201 for (i = 0; i < rsize; i++) {
202 struct wil6210_mbox_ring_desc d;
203 struct wil6210_mbox_hdr hdr;
204 size_t delta = i * sizeof(d);
205 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
206
207 wil_memcpy_fromio_32(&d, x, sizeof(d));
208
209 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
210 d.sync ? "F" : "E",
211 (r.tail - r.base == delta) ? "t" : " ",
212 (r.head - r.base == delta) ? "h" : " ",
213 le32_to_cpu(d.addr));
214 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
215 u16 len = le16_to_cpu(hdr.len);
216
217 seq_printf(s, " -> %04x %04x %04x %02x\n",
218 le16_to_cpu(hdr.seq), len,
219 le16_to_cpu(hdr.type), hdr.flags);
220 if (len <= MAX_MBOXITEM_SIZE) {
221 unsigned char databuf[MAX_MBOXITEM_SIZE];
222 void __iomem *src = wmi_buffer(wil, d.addr) +
223 sizeof(struct wil6210_mbox_hdr);
224 /*
225 * No need to check @src for validity -
226 * we already validated @d.addr while
227 * reading header
228 */
229 wil_memcpy_fromio_32(databuf, src, len);
230 wil_seq_hexdump(s, databuf, len, " : ");
231 }
232 } else {
233 seq_puts(s, "\n");
234 }
235 }
236 out:
237 seq_puts(s, "}\n");
238 }
239
240 static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
241 {
242 struct wil6210_priv *wil = s->private;
243
244 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
245 offsetof(struct wil6210_mbox_ctl, tx));
246 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
247 offsetof(struct wil6210_mbox_ctl, rx));
248
249 return 0;
250 }
251
252 static int wil_mbox_seq_open(struct inode *inode, struct file *file)
253 {
254 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
255 }
256
257 static const struct file_operations fops_mbox = {
258 .open = wil_mbox_seq_open,
259 .release = single_release,
260 .read = seq_read,
261 .llseek = seq_lseek,
262 };
263
264 static int wil_debugfs_iomem_x32_set(void *data, u64 val)
265 {
266 writel(val, (void __iomem *)data);
267 wmb(); /* make sure write propagated to HW */
268
269 return 0;
270 }
271
272 static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
273 {
274 *val = readl((void __iomem *)data);
275
276 return 0;
277 }
278
279 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
280 wil_debugfs_iomem_x32_set, "0x%08llx\n");
281
282 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
283 umode_t mode,
284 struct dentry *parent,
285 void *value)
286 {
287 return debugfs_create_file(name, mode, parent, value,
288 &fops_iomem_x32);
289 }
290
291 static int wil_debugfs_ulong_set(void *data, u64 val)
292 {
293 *(ulong *)data = val;
294 return 0;
295 }
296
297 static int wil_debugfs_ulong_get(void *data, u64 *val)
298 {
299 *val = *(ulong *)data;
300 return 0;
301 }
302
303 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
304 wil_debugfs_ulong_set, "0x%llx\n");
305
306 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
307 struct dentry *parent,
308 ulong *value)
309 {
310 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
311 }
312
313 /**
314 * wil6210_debugfs_init_offset - create set of debugfs files
315 * @wil - driver's context, used for printing
316 * @dbg - directory on the debugfs, where files will be created
317 * @base - base address used in address calculation
318 * @tbl - table with file descriptions. Should be terminated with empty element.
319 *
320 * Creates files accordingly to the @tbl.
321 */
322 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
323 struct dentry *dbg, void *base,
324 const struct dbg_off * const tbl)
325 {
326 int i;
327
328 for (i = 0; tbl[i].name; i++) {
329 struct dentry *f;
330
331 switch (tbl[i].type) {
332 case doff_u32:
333 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
334 base + tbl[i].off);
335 break;
336 case doff_x32:
337 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
338 base + tbl[i].off);
339 break;
340 case doff_ulong:
341 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
342 dbg, base + tbl[i].off);
343 break;
344 case doff_io32:
345 f = wil_debugfs_create_iomem_x32(tbl[i].name,
346 tbl[i].mode, dbg,
347 base + tbl[i].off);
348 break;
349 default:
350 f = ERR_PTR(-EINVAL);
351 }
352 if (IS_ERR_OR_NULL(f))
353 wil_err(wil, "Create file \"%s\": err %ld\n",
354 tbl[i].name, PTR_ERR(f));
355 }
356 }
357
358 static const struct dbg_off isr_off[] = {
359 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
360 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
361 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
362 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
363 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
364 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
365 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
366 {},
367 };
368
369 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
370 const char *name,
371 struct dentry *parent, u32 off)
372 {
373 struct dentry *d = debugfs_create_dir(name, parent);
374
375 if (IS_ERR_OR_NULL(d))
376 return -ENODEV;
377
378 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
379 isr_off);
380
381 return 0;
382 }
383
384 static const struct dbg_off pseudo_isr_off[] = {
385 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
386 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
387 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
388 {},
389 };
390
391 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
392 struct dentry *parent)
393 {
394 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
395
396 if (IS_ERR_OR_NULL(d))
397 return -ENODEV;
398
399 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
400 pseudo_isr_off);
401
402 return 0;
403 }
404
405 static const struct dbg_off lgc_itr_cnt_off[] = {
406 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
407 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
408 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
409 {},
410 };
411
412 static const struct dbg_off tx_itr_cnt_off[] = {
413 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
414 doff_io32},
415 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
416 doff_io32},
417 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
418 doff_io32},
419 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
420 doff_io32},
421 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
422 doff_io32},
423 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
424 doff_io32},
425 {},
426 };
427
428 static const struct dbg_off rx_itr_cnt_off[] = {
429 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
430 doff_io32},
431 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
432 doff_io32},
433 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
434 doff_io32},
435 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
436 doff_io32},
437 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
438 doff_io32},
439 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
440 doff_io32},
441 {},
442 };
443
444 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
445 struct dentry *parent)
446 {
447 struct dentry *d, *dtx, *drx;
448
449 d = debugfs_create_dir("ITR_CNT", parent);
450 if (IS_ERR_OR_NULL(d))
451 return -ENODEV;
452
453 dtx = debugfs_create_dir("TX", d);
454 drx = debugfs_create_dir("RX", d);
455 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx))
456 return -ENODEV;
457
458 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
459 lgc_itr_cnt_off);
460
461 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
462 tx_itr_cnt_off);
463
464 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
465 rx_itr_cnt_off);
466 return 0;
467 }
468
469 static int wil_memread_debugfs_show(struct seq_file *s, void *data)
470 {
471 struct wil6210_priv *wil = s->private;
472 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
473
474 if (a)
475 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
476 else
477 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
478
479 return 0;
480 }
481
482 static int wil_memread_seq_open(struct inode *inode, struct file *file)
483 {
484 return single_open(file, wil_memread_debugfs_show, inode->i_private);
485 }
486
487 static const struct file_operations fops_memread = {
488 .open = wil_memread_seq_open,
489 .release = single_release,
490 .read = seq_read,
491 .llseek = seq_lseek,
492 };
493
494 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
495 size_t count, loff_t *ppos)
496 {
497 enum { max_count = 4096 };
498 struct debugfs_blob_wrapper *blob = file->private_data;
499 loff_t pos = *ppos;
500 size_t available = blob->size;
501 void *buf;
502 size_t ret;
503
504 if (pos < 0)
505 return -EINVAL;
506
507 if (pos >= available || !count)
508 return 0;
509
510 if (count > available - pos)
511 count = available - pos;
512 if (count > max_count)
513 count = max_count;
514
515 buf = kmalloc(count, GFP_KERNEL);
516 if (!buf)
517 return -ENOMEM;
518
519 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
520 pos, count);
521
522 ret = copy_to_user(user_buf, buf, count);
523 kfree(buf);
524 if (ret == count)
525 return -EFAULT;
526
527 count -= ret;
528 *ppos = pos + count;
529
530 return count;
531 }
532
533 static const struct file_operations fops_ioblob = {
534 .read = wil_read_file_ioblob,
535 .open = simple_open,
536 .llseek = default_llseek,
537 };
538
539 static
540 struct dentry *wil_debugfs_create_ioblob(const char *name,
541 umode_t mode,
542 struct dentry *parent,
543 struct debugfs_blob_wrapper *blob)
544 {
545 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
546 }
547
548 /*---reset---*/
549 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
550 size_t len, loff_t *ppos)
551 {
552 struct wil6210_priv *wil = file->private_data;
553 struct net_device *ndev = wil_to_ndev(wil);
554
555 /**
556 * BUG:
557 * this code does NOT sync device state with the rest of system
558 * use with care, debug only!!!
559 */
560 rtnl_lock();
561 dev_close(ndev);
562 ndev->flags &= ~IFF_UP;
563 rtnl_unlock();
564 wil_reset(wil, true);
565
566 return len;
567 }
568
569 static const struct file_operations fops_reset = {
570 .write = wil_write_file_reset,
571 .open = simple_open,
572 };
573
574 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/
575 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
576 size_t len, loff_t *ppos)
577 {
578 struct wil6210_priv *wil = file->private_data;
579 int rc;
580 long channel;
581 bool on;
582
583 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
584
585 if (!kbuf)
586 return -ENOMEM;
587 if (copy_from_user(kbuf, buf, len)) {
588 kfree(kbuf);
589 return -EIO;
590 }
591
592 kbuf[len] = '\0';
593 rc = kstrtol(kbuf, 0, &channel);
594 kfree(kbuf);
595 if (rc)
596 return rc;
597
598 if ((channel < 0) || (channel > 4)) {
599 wil_err(wil, "Invalid channel %ld\n", channel);
600 return -EINVAL;
601 }
602 on = !!channel;
603
604 if (on) {
605 rc = wmi_set_channel(wil, (int)channel);
606 if (rc)
607 return rc;
608 }
609
610 rc = wmi_rxon(wil, on);
611 if (rc)
612 return rc;
613
614 return len;
615 }
616
617 static const struct file_operations fops_rxon = {
618 .write = wil_write_file_rxon,
619 .open = simple_open,
620 };
621
622 /* block ack control, write:
623 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
624 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
625 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
626 */
627 static ssize_t wil_write_back(struct file *file, const char __user *buf,
628 size_t len, loff_t *ppos)
629 {
630 struct wil6210_priv *wil = file->private_data;
631 int rc;
632 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
633 char cmd[9];
634 int p1, p2, p3;
635
636 if (!kbuf)
637 return -ENOMEM;
638
639 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
640 if (rc != len) {
641 kfree(kbuf);
642 return rc >= 0 ? -EIO : rc;
643 }
644
645 kbuf[len] = '\0';
646 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
647 kfree(kbuf);
648
649 if (rc < 0)
650 return rc;
651 if (rc < 2)
652 return -EINVAL;
653
654 if (0 == strcmp(cmd, "add")) {
655 if (rc < 3) {
656 wil_err(wil, "BACK: add require at least 2 params\n");
657 return -EINVAL;
658 }
659 if (rc < 4)
660 p3 = 0;
661 wmi_addba(wil, p1, p2, p3);
662 } else if (0 == strcmp(cmd, "del_tx")) {
663 if (rc < 3)
664 p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
665 wmi_delba_tx(wil, p1, p2);
666 } else if (0 == strcmp(cmd, "del_rx")) {
667 if (rc < 3) {
668 wil_err(wil,
669 "BACK: del_rx require at least 2 params\n");
670 return -EINVAL;
671 }
672 if (rc < 4)
673 p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
674 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3);
675 } else {
676 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
677 return -EINVAL;
678 }
679
680 return len;
681 }
682
683 static ssize_t wil_read_back(struct file *file, char __user *user_buf,
684 size_t count, loff_t *ppos)
685 {
686 static const char text[] = "block ack control, write:\n"
687 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
688 "If missing, <timeout> defaults to 0\n"
689 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
690 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
691 "If missing, <reason> set to \"STA_LEAVING\" (36)\n";
692
693 return simple_read_from_buffer(user_buf, count, ppos, text,
694 sizeof(text));
695 }
696
697 static const struct file_operations fops_back = {
698 .read = wil_read_back,
699 .write = wil_write_back,
700 .open = simple_open,
701 };
702
703 /* pmc control, write:
704 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC
705 * - "free" to release memory allocated for PMC
706 */
707 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
708 size_t len, loff_t *ppos)
709 {
710 struct wil6210_priv *wil = file->private_data;
711 int rc;
712 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
713 char cmd[9];
714 int num_descs, desc_size;
715
716 if (!kbuf)
717 return -ENOMEM;
718
719 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
720 if (rc != len) {
721 kfree(kbuf);
722 return rc >= 0 ? -EIO : rc;
723 }
724
725 kbuf[len] = '\0';
726 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
727 kfree(kbuf);
728
729 if (rc < 0)
730 return rc;
731
732 if (rc < 1) {
733 wil_err(wil, "pmccfg: no params given\n");
734 return -EINVAL;
735 }
736
737 if (0 == strcmp(cmd, "alloc")) {
738 if (rc != 3) {
739 wil_err(wil, "pmccfg: alloc requires 2 params\n");
740 return -EINVAL;
741 }
742 wil_pmc_alloc(wil, num_descs, desc_size);
743 } else if (0 == strcmp(cmd, "free")) {
744 if (rc != 1) {
745 wil_err(wil, "pmccfg: free does not have any params\n");
746 return -EINVAL;
747 }
748 wil_pmc_free(wil, true);
749 } else {
750 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
751 return -EINVAL;
752 }
753
754 return len;
755 }
756
757 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
758 size_t count, loff_t *ppos)
759 {
760 struct wil6210_priv *wil = file->private_data;
761 char text[256];
762 char help[] = "pmc control, write:\n"
763 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
764 " - \"free\" to free memory allocated for pmc\n";
765
766 sprintf(text, "Last command status: %d\n\n%s",
767 wil_pmc_last_cmd_status(wil),
768 help);
769
770 return simple_read_from_buffer(user_buf, count, ppos, text,
771 strlen(text) + 1);
772 }
773
774 static const struct file_operations fops_pmccfg = {
775 .read = wil_read_pmccfg,
776 .write = wil_write_pmccfg,
777 .open = simple_open,
778 };
779
780 static const struct file_operations fops_pmcdata = {
781 .open = simple_open,
782 .read = wil_pmc_read,
783 .llseek = wil_pmc_llseek,
784 };
785
786 /*---tx_mgmt---*/
787 /* Write mgmt frame to this file to send it */
788 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
789 size_t len, loff_t *ppos)
790 {
791 struct wil6210_priv *wil = file->private_data;
792 struct wiphy *wiphy = wil_to_wiphy(wil);
793 struct wireless_dev *wdev = wil_to_wdev(wil);
794 struct cfg80211_mgmt_tx_params params;
795 int rc;
796 void *frame = kmalloc(len, GFP_KERNEL);
797
798 if (!frame)
799 return -ENOMEM;
800
801 if (copy_from_user(frame, buf, len)) {
802 kfree(frame);
803 return -EIO;
804 }
805
806 params.buf = frame;
807 params.len = len;
808 params.chan = wdev->preset_chandef.chan;
809
810 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
811
812 kfree(frame);
813 wil_info(wil, "%s() -> %d\n", __func__, rc);
814
815 return len;
816 }
817
818 static const struct file_operations fops_txmgmt = {
819 .write = wil_write_file_txmgmt,
820 .open = simple_open,
821 };
822
823 /* Write WMI command (w/o mbox header) to this file to send it
824 * WMI starts from wil6210_mbox_hdr_wmi header
825 */
826 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
827 size_t len, loff_t *ppos)
828 {
829 struct wil6210_priv *wil = file->private_data;
830 struct wil6210_mbox_hdr_wmi *wmi;
831 void *cmd;
832 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
833 u16 cmdid;
834 int rc, rc1;
835
836 if (cmdlen <= 0)
837 return -EINVAL;
838
839 wmi = kmalloc(len, GFP_KERNEL);
840 if (!wmi)
841 return -ENOMEM;
842
843 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
844 if (rc < 0) {
845 kfree(wmi);
846 return rc;
847 }
848
849 cmd = &wmi[1];
850 cmdid = le16_to_cpu(wmi->id);
851
852 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
853 kfree(wmi);
854
855 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
856
857 return rc;
858 }
859
860 static const struct file_operations fops_wmi = {
861 .write = wil_write_file_wmi,
862 .open = simple_open,
863 };
864
865 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
866 {
867 int i = 0;
868 int len = skb_headlen(skb);
869 void *p = skb->data;
870 int nr_frags = skb_shinfo(skb)->nr_frags;
871
872 seq_printf(s, " len = %d\n", len);
873 wil_seq_hexdump(s, p, len, " : ");
874
875 if (nr_frags) {
876 seq_printf(s, " nr_frags = %d\n", nr_frags);
877 for (i = 0; i < nr_frags; i++) {
878 const struct skb_frag_struct *frag =
879 &skb_shinfo(skb)->frags[i];
880
881 len = skb_frag_size(frag);
882 p = skb_frag_address_safe(frag);
883 seq_printf(s, " [%2d] : len = %d\n", i, len);
884 wil_seq_hexdump(s, p, len, " : ");
885 }
886 }
887 }
888
889 /*---------Tx/Rx descriptor------------*/
890 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
891 {
892 struct wil6210_priv *wil = s->private;
893 struct vring *vring;
894 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
895
896 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx;
897
898 if (!vring->va) {
899 if (tx)
900 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
901 else
902 seq_puts(s, "No Rx VRING\n");
903 return 0;
904 }
905
906 if (dbg_txdesc_index < vring->size) {
907 /* use struct vring_tx_desc for Rx as well,
908 * only field used, .dma.length, is the same
909 */
910 volatile struct vring_tx_desc *d =
911 &vring->va[dbg_txdesc_index].tx;
912 volatile u32 *u = (volatile u32 *)d;
913 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
914
915 if (tx)
916 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
917 dbg_txdesc_index);
918 else
919 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
920 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
921 u[0], u[1], u[2], u[3]);
922 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
923 u[4], u[5], u[6], u[7]);
924 seq_printf(s, " SKB = 0x%p\n", skb);
925
926 if (skb) {
927 skb_get(skb);
928 wil_seq_print_skb(s, skb);
929 kfree_skb(skb);
930 }
931 seq_puts(s, "}\n");
932 } else {
933 if (tx)
934 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
935 dbg_vring_index, dbg_txdesc_index,
936 vring->size);
937 else
938 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
939 dbg_txdesc_index, vring->size);
940 }
941
942 return 0;
943 }
944
945 static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
946 {
947 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
948 }
949
950 static const struct file_operations fops_txdesc = {
951 .open = wil_txdesc_seq_open,
952 .release = single_release,
953 .read = seq_read,
954 .llseek = seq_lseek,
955 };
956
957 /*---------beamforming------------*/
958 static char *wil_bfstatus_str(u32 status)
959 {
960 switch (status) {
961 case 0:
962 return "Failed";
963 case 1:
964 return "OK";
965 case 2:
966 return "Retrying";
967 default:
968 return "??";
969 }
970 }
971
972 static bool is_all_zeros(void * const x_, size_t sz)
973 {
974 /* if reply is all-0, ignore this CID */
975 u32 *x = x_;
976 int n;
977
978 for (n = 0; n < sz / sizeof(*x); n++)
979 if (x[n])
980 return false;
981
982 return true;
983 }
984
985 static int wil_bf_debugfs_show(struct seq_file *s, void *data)
986 {
987 int rc;
988 int i;
989 struct wil6210_priv *wil = s->private;
990 struct wmi_notify_req_cmd cmd = {
991 .interval_usec = 0,
992 };
993 struct {
994 struct wil6210_mbox_hdr_wmi wmi;
995 struct wmi_notify_req_done_event evt;
996 } __packed reply;
997
998 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
999 u32 status;
1000
1001 cmd.cid = i;
1002 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
1003 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
1004 sizeof(reply), 20);
1005 /* if reply is all-0, ignore this CID */
1006 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
1007 continue;
1008
1009 status = le32_to_cpu(reply.evt.status);
1010 seq_printf(s, "CID %d {\n"
1011 " TSF = 0x%016llx\n"
1012 " TxMCS = %2d TxTpt = %4d\n"
1013 " SQI = %4d\n"
1014 " Status = 0x%08x %s\n"
1015 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
1016 " Goodput(rx:tx) %4d:%4d\n"
1017 "}\n",
1018 i,
1019 le64_to_cpu(reply.evt.tsf),
1020 le16_to_cpu(reply.evt.bf_mcs),
1021 le32_to_cpu(reply.evt.tx_tpt),
1022 reply.evt.sqi,
1023 status, wil_bfstatus_str(status),
1024 le16_to_cpu(reply.evt.my_rx_sector),
1025 le16_to_cpu(reply.evt.my_tx_sector),
1026 le16_to_cpu(reply.evt.other_rx_sector),
1027 le16_to_cpu(reply.evt.other_tx_sector),
1028 le32_to_cpu(reply.evt.rx_goodput),
1029 le32_to_cpu(reply.evt.tx_goodput));
1030 }
1031 return 0;
1032 }
1033
1034 static int wil_bf_seq_open(struct inode *inode, struct file *file)
1035 {
1036 return single_open(file, wil_bf_debugfs_show, inode->i_private);
1037 }
1038
1039 static const struct file_operations fops_bf = {
1040 .open = wil_bf_seq_open,
1041 .release = single_release,
1042 .read = seq_read,
1043 .llseek = seq_lseek,
1044 };
1045
1046 /*---------SSID------------*/
1047 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
1048 size_t count, loff_t *ppos)
1049 {
1050 struct wil6210_priv *wil = file->private_data;
1051 struct wireless_dev *wdev = wil_to_wdev(wil);
1052
1053 return simple_read_from_buffer(user_buf, count, ppos,
1054 wdev->ssid, wdev->ssid_len);
1055 }
1056
1057 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
1058 size_t count, loff_t *ppos)
1059 {
1060 struct wil6210_priv *wil = file->private_data;
1061 struct wireless_dev *wdev = wil_to_wdev(wil);
1062 struct net_device *ndev = wil_to_ndev(wil);
1063
1064 if (*ppos != 0) {
1065 wil_err(wil, "Unable to set SSID substring from [%d]\n",
1066 (int)*ppos);
1067 return -EINVAL;
1068 }
1069
1070 if (count > sizeof(wdev->ssid)) {
1071 wil_err(wil, "SSID too long, len = %d\n", (int)count);
1072 return -EINVAL;
1073 }
1074 if (netif_running(ndev)) {
1075 wil_err(wil, "Unable to change SSID on running interface\n");
1076 return -EINVAL;
1077 }
1078
1079 wdev->ssid_len = count;
1080 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
1081 buf, count);
1082 }
1083
1084 static const struct file_operations fops_ssid = {
1085 .read = wil_read_file_ssid,
1086 .write = wil_write_file_ssid,
1087 .open = simple_open,
1088 };
1089
1090 /*---------temp------------*/
1091 static void print_temp(struct seq_file *s, const char *prefix, u32 t)
1092 {
1093 switch (t) {
1094 case 0:
1095 case ~(u32)0:
1096 seq_printf(s, "%s N/A\n", prefix);
1097 break;
1098 default:
1099 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
1100 break;
1101 }
1102 }
1103
1104 static int wil_temp_debugfs_show(struct seq_file *s, void *data)
1105 {
1106 struct wil6210_priv *wil = s->private;
1107 u32 t_m, t_r;
1108 int rc = wmi_get_temperature(wil, &t_m, &t_r);
1109
1110 if (rc) {
1111 seq_puts(s, "Failed\n");
1112 return 0;
1113 }
1114
1115 print_temp(s, "T_mac =", t_m);
1116 print_temp(s, "T_radio =", t_r);
1117
1118 return 0;
1119 }
1120
1121 static int wil_temp_seq_open(struct inode *inode, struct file *file)
1122 {
1123 return single_open(file, wil_temp_debugfs_show, inode->i_private);
1124 }
1125
1126 static const struct file_operations fops_temp = {
1127 .open = wil_temp_seq_open,
1128 .release = single_release,
1129 .read = seq_read,
1130 .llseek = seq_lseek,
1131 };
1132
1133 /*---------freq------------*/
1134 static int wil_freq_debugfs_show(struct seq_file *s, void *data)
1135 {
1136 struct wil6210_priv *wil = s->private;
1137 struct wireless_dev *wdev = wil_to_wdev(wil);
1138 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
1139
1140 seq_printf(s, "Freq = %d\n", freq);
1141
1142 return 0;
1143 }
1144
1145 static int wil_freq_seq_open(struct inode *inode, struct file *file)
1146 {
1147 return single_open(file, wil_freq_debugfs_show, inode->i_private);
1148 }
1149
1150 static const struct file_operations fops_freq = {
1151 .open = wil_freq_seq_open,
1152 .release = single_release,
1153 .read = seq_read,
1154 .llseek = seq_lseek,
1155 };
1156
1157 /*---------link------------*/
1158 static int wil_link_debugfs_show(struct seq_file *s, void *data)
1159 {
1160 struct wil6210_priv *wil = s->private;
1161 struct station_info sinfo;
1162 int i, rc;
1163
1164 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1165 struct wil_sta_info *p = &wil->sta[i];
1166 char *status = "unknown";
1167
1168 switch (p->status) {
1169 case wil_sta_unused:
1170 status = "unused ";
1171 break;
1172 case wil_sta_conn_pending:
1173 status = "pending ";
1174 break;
1175 case wil_sta_connected:
1176 status = "connected";
1177 break;
1178 }
1179 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
1180
1181 if (p->status == wil_sta_connected) {
1182 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
1183 if (rc)
1184 return rc;
1185
1186 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
1187 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
1188 seq_printf(s, " SQ = %d\n", sinfo.signal);
1189 }
1190 }
1191
1192 return 0;
1193 }
1194
1195 static int wil_link_seq_open(struct inode *inode, struct file *file)
1196 {
1197 return single_open(file, wil_link_debugfs_show, inode->i_private);
1198 }
1199
1200 static const struct file_operations fops_link = {
1201 .open = wil_link_seq_open,
1202 .release = single_release,
1203 .read = seq_read,
1204 .llseek = seq_lseek,
1205 };
1206
1207 /*---------info------------*/
1208 static int wil_info_debugfs_show(struct seq_file *s, void *data)
1209 {
1210 struct wil6210_priv *wil = s->private;
1211 struct net_device *ndev = wil_to_ndev(wil);
1212 int is_ac = power_supply_is_system_supplied();
1213 int rx = atomic_xchg(&wil->isr_count_rx, 0);
1214 int tx = atomic_xchg(&wil->isr_count_tx, 0);
1215 static ulong rxf_old, txf_old;
1216 ulong rxf = ndev->stats.rx_packets;
1217 ulong txf = ndev->stats.tx_packets;
1218 unsigned int i;
1219
1220 /* >0 : AC; 0 : battery; <0 : error */
1221 seq_printf(s, "AC powered : %d\n", is_ac);
1222 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1223 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1224 rxf_old = rxf;
1225 txf_old = txf;
1226
1227 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1228 " " __stringify(x) : ""
1229
1230 for (i = 0; i < ndev->num_tx_queues; i++) {
1231 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1232 unsigned long state = txq->state;
1233
1234 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1235 CHECK_QSTATE(DRV_XOFF),
1236 CHECK_QSTATE(STACK_XOFF),
1237 CHECK_QSTATE(FROZEN)
1238 );
1239 }
1240 #undef CHECK_QSTATE
1241 return 0;
1242 }
1243
1244 static int wil_info_seq_open(struct inode *inode, struct file *file)
1245 {
1246 return single_open(file, wil_info_debugfs_show, inode->i_private);
1247 }
1248
1249 static const struct file_operations fops_info = {
1250 .open = wil_info_seq_open,
1251 .release = single_release,
1252 .read = seq_read,
1253 .llseek = seq_lseek,
1254 };
1255
1256 /*---------recovery------------*/
1257 /* mode = [manual|auto]
1258 * state = [idle|pending|running]
1259 */
1260 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1261 size_t count, loff_t *ppos)
1262 {
1263 struct wil6210_priv *wil = file->private_data;
1264 char buf[80];
1265 int n;
1266 static const char * const sstate[] = {"idle", "pending", "running"};
1267
1268 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
1269 no_fw_recovery ? "manual" : "auto",
1270 sstate[wil->recovery_state]);
1271
1272 n = min_t(int, n, sizeof(buf));
1273
1274 return simple_read_from_buffer(user_buf, count, ppos,
1275 buf, n);
1276 }
1277
1278 static ssize_t wil_write_file_recovery(struct file *file,
1279 const char __user *buf_,
1280 size_t count, loff_t *ppos)
1281 {
1282 struct wil6210_priv *wil = file->private_data;
1283 static const char run_command[] = "run";
1284 char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1285 ssize_t rc;
1286
1287 if (wil->recovery_state != fw_recovery_pending) {
1288 wil_err(wil, "No recovery pending\n");
1289 return -EINVAL;
1290 }
1291
1292 if (*ppos != 0) {
1293 wil_err(wil, "Offset [%d]\n", (int)*ppos);
1294 return -EINVAL;
1295 }
1296
1297 if (count > sizeof(buf)) {
1298 wil_err(wil, "Input too long, len = %d\n", (int)count);
1299 return -EINVAL;
1300 }
1301
1302 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
1303 if (rc < 0)
1304 return rc;
1305
1306 buf[rc] = '\0';
1307 if (0 == strcmp(buf, run_command))
1308 wil_set_recovery_state(wil, fw_recovery_running);
1309 else
1310 wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1311
1312 return rc;
1313 }
1314
1315 static const struct file_operations fops_recovery = {
1316 .read = wil_read_file_recovery,
1317 .write = wil_write_file_recovery,
1318 .open = simple_open,
1319 };
1320
1321 /*---------Station matrix------------*/
1322 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1323 {
1324 int i;
1325 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1326 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
1327
1328 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
1329 r->head_seq_num);
1330 for (i = 0; i < r->buf_size; i++) {
1331 if (i == index)
1332 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1333 else
1334 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1335 }
1336 seq_printf(s,
1337 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n",
1338 r->total, drop_dup + drop_old, drop_dup, drop_old,
1339 r->ssn_last_drop);
1340 }
1341
1342 static int wil_sta_debugfs_show(struct seq_file *s, void *data)
1343 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1344 {
1345 struct wil6210_priv *wil = s->private;
1346 int i, tid, mcs;
1347
1348 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1349 struct wil_sta_info *p = &wil->sta[i];
1350 char *status = "unknown";
1351
1352 switch (p->status) {
1353 case wil_sta_unused:
1354 status = "unused ";
1355 break;
1356 case wil_sta_conn_pending:
1357 status = "pending ";
1358 break;
1359 case wil_sta_connected:
1360 status = "connected";
1361 break;
1362 }
1363 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
1364
1365 if (p->status == wil_sta_connected) {
1366 spin_lock_bh(&p->tid_rx_lock);
1367 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1368 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1369
1370 if (r) {
1371 seq_printf(s, "[%2d] ", tid);
1372 wil_print_rxtid(s, r);
1373 }
1374 }
1375 spin_unlock_bh(&p->tid_rx_lock);
1376 seq_printf(s,
1377 "Rx invalid frame: non-data %lu, short %lu, large %lu\n",
1378 p->stats.rx_non_data_frame,
1379 p->stats.rx_short_frame,
1380 p->stats.rx_large_frame);
1381
1382 seq_puts(s, "Rx/MCS:");
1383 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1384 mcs++)
1385 seq_printf(s, " %lld",
1386 p->stats.rx_per_mcs[mcs]);
1387 seq_puts(s, "\n");
1388 }
1389 }
1390
1391 return 0;
1392 }
1393
1394 static int wil_sta_seq_open(struct inode *inode, struct file *file)
1395 {
1396 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1397 }
1398
1399 static const struct file_operations fops_sta = {
1400 .open = wil_sta_seq_open,
1401 .release = single_release,
1402 .read = seq_read,
1403 .llseek = seq_lseek,
1404 };
1405
1406 /*----------------*/
1407 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1408 struct dentry *dbg)
1409 {
1410 int i;
1411 char name[32];
1412
1413 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1414 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1415 const struct fw_map *map = &fw_mapping[i];
1416
1417 if (!map->name)
1418 continue;
1419
1420 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1421 blob->size = map->to - map->from;
1422 snprintf(name, sizeof(name), "blob_%s", map->name);
1423 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1424 }
1425 }
1426
1427 /* misc files */
1428 static const struct {
1429 const char *name;
1430 umode_t mode;
1431 const struct file_operations *fops;
1432 } dbg_files[] = {
1433 {"mbox", S_IRUGO, &fops_mbox},
1434 {"vrings", S_IRUGO, &fops_vring},
1435 {"stations", S_IRUGO, &fops_sta},
1436 {"desc", S_IRUGO, &fops_txdesc},
1437 {"bf", S_IRUGO, &fops_bf},
1438 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1439 {"mem_val", S_IRUGO, &fops_memread},
1440 {"reset", S_IWUSR, &fops_reset},
1441 {"rxon", S_IWUSR, &fops_rxon},
1442 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1443 {"wmi_send", S_IWUSR, &fops_wmi},
1444 {"back", S_IRUGO | S_IWUSR, &fops_back},
1445 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg},
1446 {"pmcdata", S_IRUGO, &fops_pmcdata},
1447 {"temp", S_IRUGO, &fops_temp},
1448 {"freq", S_IRUGO, &fops_freq},
1449 {"link", S_IRUGO, &fops_link},
1450 {"info", S_IRUGO, &fops_info},
1451 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery},
1452 };
1453
1454 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1455 struct dentry *dbg)
1456 {
1457 int i;
1458
1459 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1460 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1461 wil, dbg_files[i].fops);
1462 }
1463
1464 /* interrupt control blocks */
1465 static const struct {
1466 const char *name;
1467 u32 icr_off;
1468 } dbg_icr[] = {
1469 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1470 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1471 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1472 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1473 };
1474
1475 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1476 struct dentry *dbg)
1477 {
1478 int i;
1479
1480 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1481 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1482 dbg_icr[i].icr_off);
1483 }
1484
1485 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1486 offsetof(struct wil6210_priv, name), type}
1487
1488 /* fields in struct wil6210_priv */
1489 static const struct dbg_off dbg_wil_off[] = {
1490 WIL_FIELD(privacy, S_IRUGO, doff_u32),
1491 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong),
1492 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1493 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
1494 WIL_FIELD(recovery_count, S_IRUGO, doff_u32),
1495 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32),
1496 {},
1497 };
1498
1499 static const struct dbg_off dbg_wil_regs[] = {
1500 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1501 doff_io32},
1502 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1503 {},
1504 };
1505
1506 /* static parameters */
1507 static const struct dbg_off dbg_statics[] = {
1508 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1509 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1510 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
1511 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh,
1512 doff_u32},
1513 {},
1514 };
1515
1516 int wil6210_debugfs_init(struct wil6210_priv *wil)
1517 {
1518 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1519 wil_to_wiphy(wil)->debugfsdir);
1520
1521 if (IS_ERR_OR_NULL(dbg))
1522 return -ENODEV;
1523
1524 wil_pmc_init(wil);
1525
1526 wil6210_debugfs_init_files(wil, dbg);
1527 wil6210_debugfs_init_isr(wil, dbg);
1528 wil6210_debugfs_init_blobs(wil, dbg);
1529 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1530 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1531 dbg_wil_regs);
1532 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1533
1534 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
1535
1536 wil6210_debugfs_create_ITR_CNT(wil, dbg);
1537
1538 return 0;
1539 }
1540
1541 void wil6210_debugfs_remove(struct wil6210_priv *wil)
1542 {
1543 debugfs_remove_recursive(wil->debug);
1544 wil->debug = NULL;
1545
1546 /* free pmc memory without sending command to fw, as it will
1547 * be reset on the way down anyway
1548 */
1549 wil_pmc_free(wil, false);
1550 }
Linux with added FPC-III support