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wil6210: allow empty WMI commands in debugfs wmi_send
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
1 /*
2 * Copyright (c) 2012-2016 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 doff_u8 = 4
41 };
42
43 /* offset to "wil" */
44 struct dbg_off {
45 const char *name;
46 umode_t mode;
47 ulong off;
48 enum dbg_off_type type;
49 };
50
51 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
52 const char *name, struct vring *vring,
53 char _s, char _h)
54 {
55 void __iomem *x = wmi_addr(wil, vring->hwtail);
56 u32 v;
57
58 seq_printf(s, "VRING %s = {\n", name);
59 seq_printf(s, " pa = %pad\n", &vring->pa);
60 seq_printf(s, " va = 0x%p\n", vring->va);
61 seq_printf(s, " size = %d\n", vring->size);
62 seq_printf(s, " swtail = %d\n", vring->swtail);
63 seq_printf(s, " swhead = %d\n", vring->swhead);
64 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
65 if (x) {
66 v = readl(x);
67 seq_printf(s, "0x%08x = %d\n", v, v);
68 } else {
69 seq_puts(s, "???\n");
70 }
71
72 if (vring->va && (vring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
73 uint i;
74
75 for (i = 0; i < vring->size; i++) {
76 volatile struct vring_tx_desc *d = &vring->va[i].tx;
77
78 if ((i % 128) == 0 && (i != 0))
79 seq_puts(s, "\n");
80 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
81 _s : (vring->ctx[i].skb ? _h : 'h'));
82 }
83 seq_puts(s, "\n");
84 }
85 seq_puts(s, "}\n");
86 }
87
88 static int wil_vring_debugfs_show(struct seq_file *s, void *data)
89 {
90 uint i;
91 struct wil6210_priv *wil = s->private;
92
93 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
94
95 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
96 struct vring *vring = &wil->vring_tx[i];
97 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
98
99 if (vring->va) {
100 int cid = wil->vring2cid_tid[i][0];
101 int tid = wil->vring2cid_tid[i][1];
102 u32 swhead = vring->swhead;
103 u32 swtail = vring->swtail;
104 int used = (vring->size + swhead - swtail)
105 % vring->size;
106 int avail = vring->size - used - 1;
107 char name[10];
108 char sidle[10];
109 /* performance monitoring */
110 cycles_t now = get_cycles();
111 uint64_t idle = txdata->idle * 100;
112 uint64_t total = now - txdata->begin;
113
114 if (total != 0) {
115 do_div(idle, total);
116 snprintf(sidle, sizeof(sidle), "%3d%%",
117 (int)idle);
118 } else {
119 snprintf(sidle, sizeof(sidle), "N/A");
120 }
121 txdata->begin = now;
122 txdata->idle = 0ULL;
123
124 snprintf(name, sizeof(name), "tx_%2d", i);
125
126 if (cid < WIL6210_MAX_CID)
127 seq_printf(s,
128 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
129 wil->sta[cid].addr, cid, tid,
130 txdata->dot1x_open ? "+" : "-",
131 txdata->agg_wsize,
132 txdata->agg_timeout,
133 txdata->agg_amsdu ? "+" : "-",
134 used, avail, sidle);
135 else
136 seq_printf(s,
137 "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
138 txdata->dot1x_open ? "+" : "-",
139 used, avail, sidle);
140
141 wil_print_vring(s, wil, name, vring, '_', 'H');
142 }
143 }
144
145 return 0;
146 }
147
148 static int wil_vring_seq_open(struct inode *inode, struct file *file)
149 {
150 return single_open(file, wil_vring_debugfs_show, inode->i_private);
151 }
152
153 static const struct file_operations fops_vring = {
154 .open = wil_vring_seq_open,
155 .release = single_release,
156 .read = seq_read,
157 .llseek = seq_lseek,
158 };
159
160 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
161 const char *prefix)
162 {
163 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false);
164 }
165
166 static void wil_print_ring(struct seq_file *s, const char *prefix,
167 void __iomem *off)
168 {
169 struct wil6210_priv *wil = s->private;
170 struct wil6210_mbox_ring r;
171 int rsize;
172 uint i;
173
174 wil_memcpy_fromio_32(&r, off, sizeof(r));
175 wil_mbox_ring_le2cpus(&r);
176 /*
177 * we just read memory block from NIC. This memory may be
178 * garbage. Check validity before using it.
179 */
180 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
181
182 seq_printf(s, "ring %s = {\n", prefix);
183 seq_printf(s, " base = 0x%08x\n", r.base);
184 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
185 seq_printf(s, " tail = 0x%08x\n", r.tail);
186 seq_printf(s, " head = 0x%08x\n", r.head);
187 seq_printf(s, " entry size = %d\n", r.entry_size);
188
189 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
190 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
191 sizeof(struct wil6210_mbox_ring_desc));
192 goto out;
193 }
194
195 if (!wmi_addr(wil, r.base) ||
196 !wmi_addr(wil, r.tail) ||
197 !wmi_addr(wil, r.head)) {
198 seq_puts(s, " ??? pointers are garbage?\n");
199 goto out;
200 }
201
202 for (i = 0; i < rsize; i++) {
203 struct wil6210_mbox_ring_desc d;
204 struct wil6210_mbox_hdr hdr;
205 size_t delta = i * sizeof(d);
206 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
207
208 wil_memcpy_fromio_32(&d, x, sizeof(d));
209
210 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
211 d.sync ? "F" : "E",
212 (r.tail - r.base == delta) ? "t" : " ",
213 (r.head - r.base == delta) ? "h" : " ",
214 le32_to_cpu(d.addr));
215 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
216 u16 len = le16_to_cpu(hdr.len);
217
218 seq_printf(s, " -> %04x %04x %04x %02x\n",
219 le16_to_cpu(hdr.seq), len,
220 le16_to_cpu(hdr.type), hdr.flags);
221 if (len <= MAX_MBOXITEM_SIZE) {
222 unsigned char databuf[MAX_MBOXITEM_SIZE];
223 void __iomem *src = wmi_buffer(wil, d.addr) +
224 sizeof(struct wil6210_mbox_hdr);
225 /*
226 * No need to check @src for validity -
227 * we already validated @d.addr while
228 * reading header
229 */
230 wil_memcpy_fromio_32(databuf, src, len);
231 wil_seq_hexdump(s, databuf, len, " : ");
232 }
233 } else {
234 seq_puts(s, "\n");
235 }
236 }
237 out:
238 seq_puts(s, "}\n");
239 }
240
241 static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
242 {
243 struct wil6210_priv *wil = s->private;
244
245 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
246 offsetof(struct wil6210_mbox_ctl, tx));
247 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
248 offsetof(struct wil6210_mbox_ctl, rx));
249
250 return 0;
251 }
252
253 static int wil_mbox_seq_open(struct inode *inode, struct file *file)
254 {
255 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
256 }
257
258 static const struct file_operations fops_mbox = {
259 .open = wil_mbox_seq_open,
260 .release = single_release,
261 .read = seq_read,
262 .llseek = seq_lseek,
263 };
264
265 static int wil_debugfs_iomem_x32_set(void *data, u64 val)
266 {
267 writel(val, (void __iomem *)data);
268 wmb(); /* make sure write propagated to HW */
269
270 return 0;
271 }
272
273 static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
274 {
275 *val = readl((void __iomem *)data);
276
277 return 0;
278 }
279
280 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
281 wil_debugfs_iomem_x32_set, "0x%08llx\n");
282
283 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
284 umode_t mode,
285 struct dentry *parent,
286 void *value)
287 {
288 return debugfs_create_file(name, mode, parent, value,
289 &fops_iomem_x32);
290 }
291
292 static int wil_debugfs_ulong_set(void *data, u64 val)
293 {
294 *(ulong *)data = val;
295 return 0;
296 }
297
298 static int wil_debugfs_ulong_get(void *data, u64 *val)
299 {
300 *val = *(ulong *)data;
301 return 0;
302 }
303
304 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
305 wil_debugfs_ulong_set, "0x%llx\n");
306
307 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
308 struct dentry *parent,
309 ulong *value)
310 {
311 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
312 }
313
314 /**
315 * wil6210_debugfs_init_offset - create set of debugfs files
316 * @wil - driver's context, used for printing
317 * @dbg - directory on the debugfs, where files will be created
318 * @base - base address used in address calculation
319 * @tbl - table with file descriptions. Should be terminated with empty element.
320 *
321 * Creates files accordingly to the @tbl.
322 */
323 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
324 struct dentry *dbg, void *base,
325 const struct dbg_off * const tbl)
326 {
327 int i;
328
329 for (i = 0; tbl[i].name; i++) {
330 struct dentry *f;
331
332 switch (tbl[i].type) {
333 case doff_u32:
334 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
335 base + tbl[i].off);
336 break;
337 case doff_x32:
338 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
339 base + tbl[i].off);
340 break;
341 case doff_ulong:
342 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
343 dbg, base + tbl[i].off);
344 break;
345 case doff_io32:
346 f = wil_debugfs_create_iomem_x32(tbl[i].name,
347 tbl[i].mode, dbg,
348 base + tbl[i].off);
349 break;
350 case doff_u8:
351 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg,
352 base + tbl[i].off);
353 break;
354 default:
355 f = ERR_PTR(-EINVAL);
356 }
357 if (IS_ERR_OR_NULL(f))
358 wil_err(wil, "Create file \"%s\": err %ld\n",
359 tbl[i].name, PTR_ERR(f));
360 }
361 }
362
363 static const struct dbg_off isr_off[] = {
364 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
365 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
366 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
367 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
368 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
369 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
370 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
371 {},
372 };
373
374 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
375 const char *name,
376 struct dentry *parent, u32 off)
377 {
378 struct dentry *d = debugfs_create_dir(name, parent);
379
380 if (IS_ERR_OR_NULL(d))
381 return -ENODEV;
382
383 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
384 isr_off);
385
386 return 0;
387 }
388
389 static const struct dbg_off pseudo_isr_off[] = {
390 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
391 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
392 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
393 {},
394 };
395
396 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
397 struct dentry *parent)
398 {
399 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
400
401 if (IS_ERR_OR_NULL(d))
402 return -ENODEV;
403
404 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
405 pseudo_isr_off);
406
407 return 0;
408 }
409
410 static const struct dbg_off lgc_itr_cnt_off[] = {
411 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
412 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
413 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
414 {},
415 };
416
417 static const struct dbg_off tx_itr_cnt_off[] = {
418 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
419 doff_io32},
420 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
421 doff_io32},
422 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
423 doff_io32},
424 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
425 doff_io32},
426 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
427 doff_io32},
428 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
429 doff_io32},
430 {},
431 };
432
433 static const struct dbg_off rx_itr_cnt_off[] = {
434 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
435 doff_io32},
436 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
437 doff_io32},
438 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
439 doff_io32},
440 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
441 doff_io32},
442 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
443 doff_io32},
444 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
445 doff_io32},
446 {},
447 };
448
449 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
450 struct dentry *parent)
451 {
452 struct dentry *d, *dtx, *drx;
453
454 d = debugfs_create_dir("ITR_CNT", parent);
455 if (IS_ERR_OR_NULL(d))
456 return -ENODEV;
457
458 dtx = debugfs_create_dir("TX", d);
459 drx = debugfs_create_dir("RX", d);
460 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx))
461 return -ENODEV;
462
463 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
464 lgc_itr_cnt_off);
465
466 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
467 tx_itr_cnt_off);
468
469 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
470 rx_itr_cnt_off);
471 return 0;
472 }
473
474 static int wil_memread_debugfs_show(struct seq_file *s, void *data)
475 {
476 struct wil6210_priv *wil = s->private;
477 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
478
479 if (a)
480 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
481 else
482 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
483
484 return 0;
485 }
486
487 static int wil_memread_seq_open(struct inode *inode, struct file *file)
488 {
489 return single_open(file, wil_memread_debugfs_show, inode->i_private);
490 }
491
492 static const struct file_operations fops_memread = {
493 .open = wil_memread_seq_open,
494 .release = single_release,
495 .read = seq_read,
496 .llseek = seq_lseek,
497 };
498
499 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
500 size_t count, loff_t *ppos)
501 {
502 enum { max_count = 4096 };
503 struct debugfs_blob_wrapper *blob = file->private_data;
504 loff_t pos = *ppos;
505 size_t available = blob->size;
506 void *buf;
507 size_t ret;
508
509 if (pos < 0)
510 return -EINVAL;
511
512 if (pos >= available || !count)
513 return 0;
514
515 if (count > available - pos)
516 count = available - pos;
517 if (count > max_count)
518 count = max_count;
519
520 buf = kmalloc(count, GFP_KERNEL);
521 if (!buf)
522 return -ENOMEM;
523
524 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
525 pos, count);
526
527 ret = copy_to_user(user_buf, buf, count);
528 kfree(buf);
529 if (ret == count)
530 return -EFAULT;
531
532 count -= ret;
533 *ppos = pos + count;
534
535 return count;
536 }
537
538 static const struct file_operations fops_ioblob = {
539 .read = wil_read_file_ioblob,
540 .open = simple_open,
541 .llseek = default_llseek,
542 };
543
544 static
545 struct dentry *wil_debugfs_create_ioblob(const char *name,
546 umode_t mode,
547 struct dentry *parent,
548 struct debugfs_blob_wrapper *blob)
549 {
550 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
551 }
552
553 /*---reset---*/
554 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
555 size_t len, loff_t *ppos)
556 {
557 struct wil6210_priv *wil = file->private_data;
558 struct net_device *ndev = wil_to_ndev(wil);
559
560 /**
561 * BUG:
562 * this code does NOT sync device state with the rest of system
563 * use with care, debug only!!!
564 */
565 rtnl_lock();
566 dev_close(ndev);
567 ndev->flags &= ~IFF_UP;
568 rtnl_unlock();
569 wil_reset(wil, true);
570
571 return len;
572 }
573
574 static const struct file_operations fops_reset = {
575 .write = wil_write_file_reset,
576 .open = simple_open,
577 };
578
579 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/
580 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
581 size_t len, loff_t *ppos)
582 {
583 struct wil6210_priv *wil = file->private_data;
584 int rc;
585 long channel;
586 bool on;
587
588 char *kbuf = memdup_user_nul(buf, len);
589
590 if (IS_ERR(kbuf))
591 return PTR_ERR(kbuf);
592 rc = kstrtol(kbuf, 0, &channel);
593 kfree(kbuf);
594 if (rc)
595 return rc;
596
597 if ((channel < 0) || (channel > 4)) {
598 wil_err(wil, "Invalid channel %ld\n", channel);
599 return -EINVAL;
600 }
601 on = !!channel;
602
603 if (on) {
604 rc = wmi_set_channel(wil, (int)channel);
605 if (rc)
606 return rc;
607 }
608
609 rc = wmi_rxon(wil, on);
610 if (rc)
611 return rc;
612
613 return len;
614 }
615
616 static const struct file_operations fops_rxon = {
617 .write = wil_write_file_rxon,
618 .open = simple_open,
619 };
620
621 /* block ack control, write:
622 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
623 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
624 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
625 */
626 static ssize_t wil_write_back(struct file *file, const char __user *buf,
627 size_t len, loff_t *ppos)
628 {
629 struct wil6210_priv *wil = file->private_data;
630 int rc;
631 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
632 char cmd[9];
633 int p1, p2, p3;
634
635 if (!kbuf)
636 return -ENOMEM;
637
638 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
639 if (rc != len) {
640 kfree(kbuf);
641 return rc >= 0 ? -EIO : rc;
642 }
643
644 kbuf[len] = '\0';
645 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
646 kfree(kbuf);
647
648 if (rc < 0)
649 return rc;
650 if (rc < 2)
651 return -EINVAL;
652
653 if (0 == strcmp(cmd, "add")) {
654 if (rc < 3) {
655 wil_err(wil, "BACK: add require at least 2 params\n");
656 return -EINVAL;
657 }
658 if (rc < 4)
659 p3 = 0;
660 wmi_addba(wil, p1, p2, p3);
661 } else if (0 == strcmp(cmd, "del_tx")) {
662 if (rc < 3)
663 p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
664 wmi_delba_tx(wil, p1, p2);
665 } else if (0 == strcmp(cmd, "del_rx")) {
666 if (rc < 3) {
667 wil_err(wil,
668 "BACK: del_rx require at least 2 params\n");
669 return -EINVAL;
670 }
671 if (rc < 4)
672 p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
673 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3);
674 } else {
675 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
676 return -EINVAL;
677 }
678
679 return len;
680 }
681
682 static ssize_t wil_read_back(struct file *file, char __user *user_buf,
683 size_t count, loff_t *ppos)
684 {
685 static const char text[] = "block ack control, write:\n"
686 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
687 "If missing, <timeout> defaults to 0\n"
688 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
689 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
690 "If missing, <reason> set to \"STA_LEAVING\" (36)\n";
691
692 return simple_read_from_buffer(user_buf, count, ppos, text,
693 sizeof(text));
694 }
695
696 static const struct file_operations fops_back = {
697 .read = wil_read_back,
698 .write = wil_write_back,
699 .open = simple_open,
700 };
701
702 /* pmc control, write:
703 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC
704 * - "free" to release memory allocated for PMC
705 */
706 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
707 size_t len, loff_t *ppos)
708 {
709 struct wil6210_priv *wil = file->private_data;
710 int rc;
711 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
712 char cmd[9];
713 int num_descs, desc_size;
714
715 if (!kbuf)
716 return -ENOMEM;
717
718 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
719 if (rc != len) {
720 kfree(kbuf);
721 return rc >= 0 ? -EIO : rc;
722 }
723
724 kbuf[len] = '\0';
725 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
726 kfree(kbuf);
727
728 if (rc < 0)
729 return rc;
730
731 if (rc < 1) {
732 wil_err(wil, "pmccfg: no params given\n");
733 return -EINVAL;
734 }
735
736 if (0 == strcmp(cmd, "alloc")) {
737 if (rc != 3) {
738 wil_err(wil, "pmccfg: alloc requires 2 params\n");
739 return -EINVAL;
740 }
741 wil_pmc_alloc(wil, num_descs, desc_size);
742 } else if (0 == strcmp(cmd, "free")) {
743 if (rc != 1) {
744 wil_err(wil, "pmccfg: free does not have any params\n");
745 return -EINVAL;
746 }
747 wil_pmc_free(wil, true);
748 } else {
749 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
750 return -EINVAL;
751 }
752
753 return len;
754 }
755
756 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
757 size_t count, loff_t *ppos)
758 {
759 struct wil6210_priv *wil = file->private_data;
760 char text[256];
761 char help[] = "pmc control, write:\n"
762 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
763 " - \"free\" to free memory allocated for pmc\n";
764
765 sprintf(text, "Last command status: %d\n\n%s",
766 wil_pmc_last_cmd_status(wil),
767 help);
768
769 return simple_read_from_buffer(user_buf, count, ppos, text,
770 strlen(text) + 1);
771 }
772
773 static const struct file_operations fops_pmccfg = {
774 .read = wil_read_pmccfg,
775 .write = wil_write_pmccfg,
776 .open = simple_open,
777 };
778
779 static const struct file_operations fops_pmcdata = {
780 .open = simple_open,
781 .read = wil_pmc_read,
782 .llseek = wil_pmc_llseek,
783 };
784
785 /*---tx_mgmt---*/
786 /* Write mgmt frame to this file to send it */
787 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
788 size_t len, loff_t *ppos)
789 {
790 struct wil6210_priv *wil = file->private_data;
791 struct wiphy *wiphy = wil_to_wiphy(wil);
792 struct wireless_dev *wdev = wil_to_wdev(wil);
793 struct cfg80211_mgmt_tx_params params;
794 int rc;
795 void *frame = kmalloc(len, GFP_KERNEL);
796
797 if (!frame)
798 return -ENOMEM;
799
800 if (copy_from_user(frame, buf, len)) {
801 kfree(frame);
802 return -EIO;
803 }
804
805 params.buf = frame;
806 params.len = len;
807 params.chan = wdev->preset_chandef.chan;
808
809 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
810
811 kfree(frame);
812 wil_info(wil, "%s() -> %d\n", __func__, rc);
813
814 return len;
815 }
816
817 static const struct file_operations fops_txmgmt = {
818 .write = wil_write_file_txmgmt,
819 .open = simple_open,
820 };
821
822 /* Write WMI command (w/o mbox header) to this file to send it
823 * WMI starts from wil6210_mbox_hdr_wmi header
824 */
825 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
826 size_t len, loff_t *ppos)
827 {
828 struct wil6210_priv *wil = file->private_data;
829 struct wmi_cmd_hdr *wmi;
830 void *cmd;
831 int cmdlen = len - sizeof(struct wmi_cmd_hdr);
832 u16 cmdid;
833 int rc, rc1;
834
835 if (cmdlen < 0)
836 return -EINVAL;
837
838 wmi = kmalloc(len, GFP_KERNEL);
839 if (!wmi)
840 return -ENOMEM;
841
842 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
843 if (rc < 0) {
844 kfree(wmi);
845 return rc;
846 }
847
848 cmd = (cmdlen > 0) ? &wmi[1] : NULL;
849 cmdid = le16_to_cpu(wmi->command_id);
850
851 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
852 kfree(wmi);
853
854 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
855
856 return rc;
857 }
858
859 static const struct file_operations fops_wmi = {
860 .write = wil_write_file_wmi,
861 .open = simple_open,
862 };
863
864 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
865 {
866 int i = 0;
867 int len = skb_headlen(skb);
868 void *p = skb->data;
869 int nr_frags = skb_shinfo(skb)->nr_frags;
870
871 seq_printf(s, " len = %d\n", len);
872 wil_seq_hexdump(s, p, len, " : ");
873
874 if (nr_frags) {
875 seq_printf(s, " nr_frags = %d\n", nr_frags);
876 for (i = 0; i < nr_frags; i++) {
877 const struct skb_frag_struct *frag =
878 &skb_shinfo(skb)->frags[i];
879
880 len = skb_frag_size(frag);
881 p = skb_frag_address_safe(frag);
882 seq_printf(s, " [%2d] : len = %d\n", i, len);
883 wil_seq_hexdump(s, p, len, " : ");
884 }
885 }
886 }
887
888 /*---------Tx/Rx descriptor------------*/
889 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
890 {
891 struct wil6210_priv *wil = s->private;
892 struct vring *vring;
893 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
894
895 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx;
896
897 if (!vring->va) {
898 if (tx)
899 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
900 else
901 seq_puts(s, "No Rx VRING\n");
902 return 0;
903 }
904
905 if (dbg_txdesc_index < vring->size) {
906 /* use struct vring_tx_desc for Rx as well,
907 * only field used, .dma.length, is the same
908 */
909 volatile struct vring_tx_desc *d =
910 &vring->va[dbg_txdesc_index].tx;
911 volatile u32 *u = (volatile u32 *)d;
912 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
913
914 if (tx)
915 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
916 dbg_txdesc_index);
917 else
918 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
919 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
920 u[0], u[1], u[2], u[3]);
921 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
922 u[4], u[5], u[6], u[7]);
923 seq_printf(s, " SKB = 0x%p\n", skb);
924
925 if (skb) {
926 skb_get(skb);
927 wil_seq_print_skb(s, skb);
928 kfree_skb(skb);
929 }
930 seq_puts(s, "}\n");
931 } else {
932 if (tx)
933 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
934 dbg_vring_index, dbg_txdesc_index,
935 vring->size);
936 else
937 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
938 dbg_txdesc_index, vring->size);
939 }
940
941 return 0;
942 }
943
944 static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
945 {
946 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
947 }
948
949 static const struct file_operations fops_txdesc = {
950 .open = wil_txdesc_seq_open,
951 .release = single_release,
952 .read = seq_read,
953 .llseek = seq_lseek,
954 };
955
956 /*---------beamforming------------*/
957 static char *wil_bfstatus_str(u32 status)
958 {
959 switch (status) {
960 case 0:
961 return "Failed";
962 case 1:
963 return "OK";
964 case 2:
965 return "Retrying";
966 default:
967 return "??";
968 }
969 }
970
971 static bool is_all_zeros(void * const x_, size_t sz)
972 {
973 /* if reply is all-0, ignore this CID */
974 u32 *x = x_;
975 int n;
976
977 for (n = 0; n < sz / sizeof(*x); n++)
978 if (x[n])
979 return false;
980
981 return true;
982 }
983
984 static int wil_bf_debugfs_show(struct seq_file *s, void *data)
985 {
986 int rc;
987 int i;
988 struct wil6210_priv *wil = s->private;
989 struct wmi_notify_req_cmd cmd = {
990 .interval_usec = 0,
991 };
992 struct {
993 struct wmi_cmd_hdr wmi;
994 struct wmi_notify_req_done_event evt;
995 } __packed reply;
996
997 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
998 u32 status;
999
1000 cmd.cid = i;
1001 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
1002 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
1003 sizeof(reply), 20);
1004 /* if reply is all-0, ignore this CID */
1005 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
1006 continue;
1007
1008 status = le32_to_cpu(reply.evt.status);
1009 seq_printf(s, "CID %d {\n"
1010 " TSF = 0x%016llx\n"
1011 " TxMCS = %2d TxTpt = %4d\n"
1012 " SQI = %4d\n"
1013 " Status = 0x%08x %s\n"
1014 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
1015 " Goodput(rx:tx) %4d:%4d\n"
1016 "}\n",
1017 i,
1018 le64_to_cpu(reply.evt.tsf),
1019 le16_to_cpu(reply.evt.bf_mcs),
1020 le32_to_cpu(reply.evt.tx_tpt),
1021 reply.evt.sqi,
1022 status, wil_bfstatus_str(status),
1023 le16_to_cpu(reply.evt.my_rx_sector),
1024 le16_to_cpu(reply.evt.my_tx_sector),
1025 le16_to_cpu(reply.evt.other_rx_sector),
1026 le16_to_cpu(reply.evt.other_tx_sector),
1027 le32_to_cpu(reply.evt.rx_goodput),
1028 le32_to_cpu(reply.evt.tx_goodput));
1029 }
1030 return 0;
1031 }
1032
1033 static int wil_bf_seq_open(struct inode *inode, struct file *file)
1034 {
1035 return single_open(file, wil_bf_debugfs_show, inode->i_private);
1036 }
1037
1038 static const struct file_operations fops_bf = {
1039 .open = wil_bf_seq_open,
1040 .release = single_release,
1041 .read = seq_read,
1042 .llseek = seq_lseek,
1043 };
1044
1045 /*---------SSID------------*/
1046 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
1047 size_t count, loff_t *ppos)
1048 {
1049 struct wil6210_priv *wil = file->private_data;
1050 struct wireless_dev *wdev = wil_to_wdev(wil);
1051
1052 return simple_read_from_buffer(user_buf, count, ppos,
1053 wdev->ssid, wdev->ssid_len);
1054 }
1055
1056 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
1057 size_t count, loff_t *ppos)
1058 {
1059 struct wil6210_priv *wil = file->private_data;
1060 struct wireless_dev *wdev = wil_to_wdev(wil);
1061 struct net_device *ndev = wil_to_ndev(wil);
1062
1063 if (*ppos != 0) {
1064 wil_err(wil, "Unable to set SSID substring from [%d]\n",
1065 (int)*ppos);
1066 return -EINVAL;
1067 }
1068
1069 if (count > sizeof(wdev->ssid)) {
1070 wil_err(wil, "SSID too long, len = %d\n", (int)count);
1071 return -EINVAL;
1072 }
1073 if (netif_running(ndev)) {
1074 wil_err(wil, "Unable to change SSID on running interface\n");
1075 return -EINVAL;
1076 }
1077
1078 wdev->ssid_len = count;
1079 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
1080 buf, count);
1081 }
1082
1083 static const struct file_operations fops_ssid = {
1084 .read = wil_read_file_ssid,
1085 .write = wil_write_file_ssid,
1086 .open = simple_open,
1087 };
1088
1089 /*---------temp------------*/
1090 static void print_temp(struct seq_file *s, const char *prefix, u32 t)
1091 {
1092 switch (t) {
1093 case 0:
1094 case ~(u32)0:
1095 seq_printf(s, "%s N/A\n", prefix);
1096 break;
1097 default:
1098 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
1099 break;
1100 }
1101 }
1102
1103 static int wil_temp_debugfs_show(struct seq_file *s, void *data)
1104 {
1105 struct wil6210_priv *wil = s->private;
1106 u32 t_m, t_r;
1107 int rc = wmi_get_temperature(wil, &t_m, &t_r);
1108
1109 if (rc) {
1110 seq_puts(s, "Failed\n");
1111 return 0;
1112 }
1113
1114 print_temp(s, "T_mac =", t_m);
1115 print_temp(s, "T_radio =", t_r);
1116
1117 return 0;
1118 }
1119
1120 static int wil_temp_seq_open(struct inode *inode, struct file *file)
1121 {
1122 return single_open(file, wil_temp_debugfs_show, inode->i_private);
1123 }
1124
1125 static const struct file_operations fops_temp = {
1126 .open = wil_temp_seq_open,
1127 .release = single_release,
1128 .read = seq_read,
1129 .llseek = seq_lseek,
1130 };
1131
1132 /*---------freq------------*/
1133 static int wil_freq_debugfs_show(struct seq_file *s, void *data)
1134 {
1135 struct wil6210_priv *wil = s->private;
1136 struct wireless_dev *wdev = wil_to_wdev(wil);
1137 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
1138
1139 seq_printf(s, "Freq = %d\n", freq);
1140
1141 return 0;
1142 }
1143
1144 static int wil_freq_seq_open(struct inode *inode, struct file *file)
1145 {
1146 return single_open(file, wil_freq_debugfs_show, inode->i_private);
1147 }
1148
1149 static const struct file_operations fops_freq = {
1150 .open = wil_freq_seq_open,
1151 .release = single_release,
1152 .read = seq_read,
1153 .llseek = seq_lseek,
1154 };
1155
1156 /*---------link------------*/
1157 static int wil_link_debugfs_show(struct seq_file *s, void *data)
1158 {
1159 struct wil6210_priv *wil = s->private;
1160 struct station_info sinfo;
1161 int i, rc;
1162
1163 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1164 struct wil_sta_info *p = &wil->sta[i];
1165 char *status = "unknown";
1166
1167 switch (p->status) {
1168 case wil_sta_unused:
1169 status = "unused ";
1170 break;
1171 case wil_sta_conn_pending:
1172 status = "pending ";
1173 break;
1174 case wil_sta_connected:
1175 status = "connected";
1176 break;
1177 }
1178 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
1179
1180 if (p->status == wil_sta_connected) {
1181 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
1182 if (rc)
1183 return rc;
1184
1185 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
1186 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
1187 seq_printf(s, " SQ = %d\n", sinfo.signal);
1188 }
1189 }
1190
1191 return 0;
1192 }
1193
1194 static int wil_link_seq_open(struct inode *inode, struct file *file)
1195 {
1196 return single_open(file, wil_link_debugfs_show, inode->i_private);
1197 }
1198
1199 static const struct file_operations fops_link = {
1200 .open = wil_link_seq_open,
1201 .release = single_release,
1202 .read = seq_read,
1203 .llseek = seq_lseek,
1204 };
1205
1206 /*---------info------------*/
1207 static int wil_info_debugfs_show(struct seq_file *s, void *data)
1208 {
1209 struct wil6210_priv *wil = s->private;
1210 struct net_device *ndev = wil_to_ndev(wil);
1211 int is_ac = power_supply_is_system_supplied();
1212 int rx = atomic_xchg(&wil->isr_count_rx, 0);
1213 int tx = atomic_xchg(&wil->isr_count_tx, 0);
1214 static ulong rxf_old, txf_old;
1215 ulong rxf = ndev->stats.rx_packets;
1216 ulong txf = ndev->stats.tx_packets;
1217 unsigned int i;
1218
1219 /* >0 : AC; 0 : battery; <0 : error */
1220 seq_printf(s, "AC powered : %d\n", is_ac);
1221 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1222 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1223 rxf_old = rxf;
1224 txf_old = txf;
1225
1226 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1227 " " __stringify(x) : ""
1228
1229 for (i = 0; i < ndev->num_tx_queues; i++) {
1230 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1231 unsigned long state = txq->state;
1232
1233 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1234 CHECK_QSTATE(DRV_XOFF),
1235 CHECK_QSTATE(STACK_XOFF),
1236 CHECK_QSTATE(FROZEN)
1237 );
1238 }
1239 #undef CHECK_QSTATE
1240 return 0;
1241 }
1242
1243 static int wil_info_seq_open(struct inode *inode, struct file *file)
1244 {
1245 return single_open(file, wil_info_debugfs_show, inode->i_private);
1246 }
1247
1248 static const struct file_operations fops_info = {
1249 .open = wil_info_seq_open,
1250 .release = single_release,
1251 .read = seq_read,
1252 .llseek = seq_lseek,
1253 };
1254
1255 /*---------recovery------------*/
1256 /* mode = [manual|auto]
1257 * state = [idle|pending|running]
1258 */
1259 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1260 size_t count, loff_t *ppos)
1261 {
1262 struct wil6210_priv *wil = file->private_data;
1263 char buf[80];
1264 int n;
1265 static const char * const sstate[] = {"idle", "pending", "running"};
1266
1267 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
1268 no_fw_recovery ? "manual" : "auto",
1269 sstate[wil->recovery_state]);
1270
1271 n = min_t(int, n, sizeof(buf));
1272
1273 return simple_read_from_buffer(user_buf, count, ppos,
1274 buf, n);
1275 }
1276
1277 static ssize_t wil_write_file_recovery(struct file *file,
1278 const char __user *buf_,
1279 size_t count, loff_t *ppos)
1280 {
1281 struct wil6210_priv *wil = file->private_data;
1282 static const char run_command[] = "run";
1283 char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1284 ssize_t rc;
1285
1286 if (wil->recovery_state != fw_recovery_pending) {
1287 wil_err(wil, "No recovery pending\n");
1288 return -EINVAL;
1289 }
1290
1291 if (*ppos != 0) {
1292 wil_err(wil, "Offset [%d]\n", (int)*ppos);
1293 return -EINVAL;
1294 }
1295
1296 if (count > sizeof(buf)) {
1297 wil_err(wil, "Input too long, len = %d\n", (int)count);
1298 return -EINVAL;
1299 }
1300
1301 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
1302 if (rc < 0)
1303 return rc;
1304
1305 buf[rc] = '\0';
1306 if (0 == strcmp(buf, run_command))
1307 wil_set_recovery_state(wil, fw_recovery_running);
1308 else
1309 wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1310
1311 return rc;
1312 }
1313
1314 static const struct file_operations fops_recovery = {
1315 .read = wil_read_file_recovery,
1316 .write = wil_write_file_recovery,
1317 .open = simple_open,
1318 };
1319
1320 /*---------Station matrix------------*/
1321 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1322 {
1323 int i;
1324 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1325 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
1326
1327 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
1328 r->head_seq_num);
1329 for (i = 0; i < r->buf_size; i++) {
1330 if (i == index)
1331 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1332 else
1333 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1334 }
1335 seq_printf(s,
1336 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n",
1337 r->total, drop_dup + drop_old, drop_dup, drop_old,
1338 r->ssn_last_drop);
1339 }
1340
1341 static void wil_print_rxtid_crypto(struct seq_file *s, int tid,
1342 struct wil_tid_crypto_rx *c)
1343 {
1344 int i;
1345
1346 for (i = 0; i < 4; i++) {
1347 struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1348
1349 if (cc->key_set)
1350 goto has_keys;
1351 }
1352 return;
1353
1354 has_keys:
1355 if (tid < WIL_STA_TID_NUM)
1356 seq_printf(s, " [%2d] PN", tid);
1357 else
1358 seq_puts(s, " [GR] PN");
1359
1360 for (i = 0; i < 4; i++) {
1361 struct wil_tid_crypto_rx_single *cc = &c->key_id[i];
1362
1363 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
1364 cc->pn);
1365 }
1366 seq_puts(s, "\n");
1367 }
1368
1369 static int wil_sta_debugfs_show(struct seq_file *s, void *data)
1370 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1371 {
1372 struct wil6210_priv *wil = s->private;
1373 int i, tid, mcs;
1374
1375 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1376 struct wil_sta_info *p = &wil->sta[i];
1377 char *status = "unknown";
1378
1379 switch (p->status) {
1380 case wil_sta_unused:
1381 status = "unused ";
1382 break;
1383 case wil_sta_conn_pending:
1384 status = "pending ";
1385 break;
1386 case wil_sta_connected:
1387 status = "connected";
1388 break;
1389 }
1390 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
1391
1392 if (p->status == wil_sta_connected) {
1393 spin_lock_bh(&p->tid_rx_lock);
1394 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1395 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1396 struct wil_tid_crypto_rx *c =
1397 &p->tid_crypto_rx[tid];
1398
1399 if (r) {
1400 seq_printf(s, " [%2d] ", tid);
1401 wil_print_rxtid(s, r);
1402 }
1403
1404 wil_print_rxtid_crypto(s, tid, c);
1405 }
1406 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM,
1407 &p->group_crypto_rx);
1408 spin_unlock_bh(&p->tid_rx_lock);
1409 seq_printf(s,
1410 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n",
1411 p->stats.rx_non_data_frame,
1412 p->stats.rx_short_frame,
1413 p->stats.rx_large_frame,
1414 p->stats.rx_replay);
1415
1416 seq_puts(s, "Rx/MCS:");
1417 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1418 mcs++)
1419 seq_printf(s, " %lld",
1420 p->stats.rx_per_mcs[mcs]);
1421 seq_puts(s, "\n");
1422 }
1423 }
1424
1425 return 0;
1426 }
1427
1428 static int wil_sta_seq_open(struct inode *inode, struct file *file)
1429 {
1430 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1431 }
1432
1433 static const struct file_operations fops_sta = {
1434 .open = wil_sta_seq_open,
1435 .release = single_release,
1436 .read = seq_read,
1437 .llseek = seq_lseek,
1438 };
1439
1440 /*----------------*/
1441 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1442 struct dentry *dbg)
1443 {
1444 int i;
1445 char name[32];
1446
1447 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1448 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1449 const struct fw_map *map = &fw_mapping[i];
1450
1451 if (!map->name)
1452 continue;
1453
1454 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1455 blob->size = map->to - map->from;
1456 snprintf(name, sizeof(name), "blob_%s", map->name);
1457 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1458 }
1459 }
1460
1461 /* misc files */
1462 static const struct {
1463 const char *name;
1464 umode_t mode;
1465 const struct file_operations *fops;
1466 } dbg_files[] = {
1467 {"mbox", S_IRUGO, &fops_mbox},
1468 {"vrings", S_IRUGO, &fops_vring},
1469 {"stations", S_IRUGO, &fops_sta},
1470 {"desc", S_IRUGO, &fops_txdesc},
1471 {"bf", S_IRUGO, &fops_bf},
1472 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1473 {"mem_val", S_IRUGO, &fops_memread},
1474 {"reset", S_IWUSR, &fops_reset},
1475 {"rxon", S_IWUSR, &fops_rxon},
1476 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1477 {"wmi_send", S_IWUSR, &fops_wmi},
1478 {"back", S_IRUGO | S_IWUSR, &fops_back},
1479 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg},
1480 {"pmcdata", S_IRUGO, &fops_pmcdata},
1481 {"temp", S_IRUGO, &fops_temp},
1482 {"freq", S_IRUGO, &fops_freq},
1483 {"link", S_IRUGO, &fops_link},
1484 {"info", S_IRUGO, &fops_info},
1485 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery},
1486 };
1487
1488 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1489 struct dentry *dbg)
1490 {
1491 int i;
1492
1493 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1494 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1495 wil, dbg_files[i].fops);
1496 }
1497
1498 /* interrupt control blocks */
1499 static const struct {
1500 const char *name;
1501 u32 icr_off;
1502 } dbg_icr[] = {
1503 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1504 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1505 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1506 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1507 };
1508
1509 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1510 struct dentry *dbg)
1511 {
1512 int i;
1513
1514 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1515 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1516 dbg_icr[i].icr_off);
1517 }
1518
1519 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1520 offsetof(struct wil6210_priv, name), type}
1521
1522 /* fields in struct wil6210_priv */
1523 static const struct dbg_off dbg_wil_off[] = {
1524 WIL_FIELD(privacy, S_IRUGO, doff_u32),
1525 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong),
1526 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1527 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
1528 WIL_FIELD(recovery_count, S_IRUGO, doff_u32),
1529 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32),
1530 WIL_FIELD(discovery_mode, S_IRUGO | S_IWUSR, doff_u8),
1531 {},
1532 };
1533
1534 static const struct dbg_off dbg_wil_regs[] = {
1535 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1536 doff_io32},
1537 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1538 {},
1539 };
1540
1541 /* static parameters */
1542 static const struct dbg_off dbg_statics[] = {
1543 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1544 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1545 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
1546 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh,
1547 doff_u32},
1548 {},
1549 };
1550
1551 int wil6210_debugfs_init(struct wil6210_priv *wil)
1552 {
1553 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1554 wil_to_wiphy(wil)->debugfsdir);
1555
1556 if (IS_ERR_OR_NULL(dbg))
1557 return -ENODEV;
1558
1559 wil_pmc_init(wil);
1560
1561 wil6210_debugfs_init_files(wil, dbg);
1562 wil6210_debugfs_init_isr(wil, dbg);
1563 wil6210_debugfs_init_blobs(wil, dbg);
1564 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1565 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1566 dbg_wil_regs);
1567 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1568
1569 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
1570
1571 wil6210_debugfs_create_ITR_CNT(wil, dbg);
1572
1573 return 0;
1574 }
1575
1576 void wil6210_debugfs_remove(struct wil6210_priv *wil)
1577 {
1578 debugfs_remove_recursive(wil->debug);
1579 wil->debug = NULL;
1580
1581 /* free pmc memory without sending command to fw, as it will
1582 * be reset on the way down anyway
1583 */
1584 wil_pmc_free(wil, false);
1585 }
Linux kernel - Deliverables
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