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kmemleak: use seq_hex_dump() to dump buffers
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
CommitLineData
2be7d22f 1/*
230d8442 2 * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
2be7d22f
VK		 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>
84bb29b7 22#include <linux/power_supply.h>
2be7d22f
VK		 23
24#include "wil6210.h"
36345ac3 25#include "wmi.h"
2be7d22f 26#include "txrx.h"
dc16427b 27#include "pmc.h"
2be7d22f
VK		 28
29/* Nasty hack. Better have per device instances */
30static u32 mem_addr;
31static u32 dbg_txdesc_index;
af31cb5a 32static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
0436fd9a 33u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */
2be7d22f 34
b7cde470
VK		 35enum 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" */
43struct dbg_off {
44 const char *name;
45 umode_t mode;
46 ulong off;
47 enum dbg_off_type type;
48};
49
2be7d22f 50static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
59f7c0a9
VK		 51 const char *name, struct vring *vring,
52 char _s, char _h)
2be7d22f
VK		 53{
54 void __iomem *x = wmi_addr(wil, vring->hwtail);
995cdd0e 55 u32 v;
2be7d22f
VK		 56
57 seq_printf(s, "VRING %s = {\n", name);
39c52ee8 58 seq_printf(s, " pa = %pad\n", &vring->pa);
2be7d22f
VK		 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);
995cdd0e 64 if (x) {
b9eeb512 65 v = readl(x);
995cdd0e
VK		 66 seq_printf(s, "0x%08x = %d\n", v, v);
67 } else {
8fe59627 68 seq_puts(s, "???\n");
995cdd0e 69 }
2be7d22f
VK		 70
71 if (vring->va && (vring->size < 1025)) {
72 uint i;
8fe59627 73
2be7d22f
VK		 74 for (i = 0; i < vring->size; i++) {
75 volatile struct vring_tx_desc *d = &vring->va[i].tx;
8fe59627 76
2be7d22f 77 if ((i % 64) == 0 && (i != 0))
8fe59627 78 seq_puts(s, "\n");
59f7c0a9
VK		 79 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
80 _s : (vring->ctx[i].skb ? _h : 'h'));
2be7d22f 81 }
8fe59627 82 seq_puts(s, "\n");
2be7d22f 83 }
8fe59627 84 seq_puts(s, "}\n");
2be7d22f
VK		 85}
86
87static int wil_vring_debugfs_show(struct seq_file *s, void *data)
88{
89 uint i;
90 struct wil6210_priv *wil = s->private;
91
59f7c0a9 92 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
2be7d22f
VK		 93
94 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
8fe59627 95 struct vring *vring = &wil->vring_tx[i];
7c0acf86
VK		 96 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
97
2be7d22f 98 if (vring->va) {
3df2cd36
VK		 99 int cid = wil->vring2cid_tid[i][0];
100 int tid = wil->vring2cid_tid[i][1];
67c3e1b4
VK		 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;
2be7d22f 106 char name[10];
8f55cbec 107 char sidle[10];
7c0acf86
VK		 108 /* performance monitoring */
109 cycles_t now = get_cycles();
c20e7789
CG		 110 uint64_t idle = txdata->idle * 100;
111 uint64_t total = now - txdata->begin;
7c0acf86 112
8f55cbec
BS		 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 }
7c0acf86
VK		 120 txdata->begin = now;
121 txdata->idle = 0ULL;
122
2be7d22f 123 snprintf(name, sizeof(name), "tx_%2d", i);
3df2cd36 124
41d6b093
VK		 125 if (cid < WIL6210_MAX_CID)
126 seq_printf(s,
230d8442 127 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
41d6b093 128 wil->sta[cid].addr, cid, tid,
230d8442 129 txdata->dot1x_open ? "+" : "-",
41d6b093
VK		 130 txdata->agg_wsize,
131 txdata->agg_timeout,
132 txdata->agg_amsdu ? "+" : "-",
133 used, avail, sidle);
134 else
135 seq_printf(s,
230d8442
VK		 136 "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
137 txdata->dot1x_open ? "+" : "-",
41d6b093 138 used, avail, sidle);
7c0acf86 139
59f7c0a9 140 wil_print_vring(s, wil, name, vring, '_', 'H');
2be7d22f
VK		 141 }
142 }
143
144 return 0;
145}
146
147static 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
152static 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
159static void wil_print_ring(struct seq_file *s, const char *prefix,
160 void __iomem *off)
161{
162 struct wil6210_priv *wil = s->private;
163 struct wil6210_mbox_ring r;
164 int rsize;
165 uint i;
166
167 wil_memcpy_fromio_32(&r, off, sizeof(r));
168 wil_mbox_ring_le2cpus(&r);
169 /*
170 * we just read memory block from NIC. This memory may be
171 * garbage. Check validity before using it.
172 */
173 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
174
175 seq_printf(s, "ring %s = {\n", prefix);
176 seq_printf(s, " base = 0x%08x\n", r.base);
177 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
178 seq_printf(s, " tail = 0x%08x\n", r.tail);
179 seq_printf(s, " head = 0x%08x\n", r.head);
180 seq_printf(s, " entry size = %d\n", r.entry_size);
181
182 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
183 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
184 sizeof(struct wil6210_mbox_ring_desc));
185 goto out;
186 }
187
188 if (!wmi_addr(wil, r.base) ||
189 !wmi_addr(wil, r.tail) ||
190 !wmi_addr(wil, r.head)) {
8fe59627 191 seq_puts(s, " ??? pointers are garbage?\n");
2be7d22f
VK		 192 goto out;
193 }
194
195 for (i = 0; i < rsize; i++) {
196 struct wil6210_mbox_ring_desc d;
197 struct wil6210_mbox_hdr hdr;
198 size_t delta = i * sizeof(d);
199 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
200
201 wil_memcpy_fromio_32(&d, x, sizeof(d));
202
203 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
204 d.sync ? "F" : "E",
205 (r.tail - r.base == delta) ? "t" : " ",
206 (r.head - r.base == delta) ? "h" : " ",
207 le32_to_cpu(d.addr));
208 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
209 u16 len = le16_to_cpu(hdr.len);
8fe59627 210
2be7d22f
VK		 211 seq_printf(s, " -> %04x %04x %04x %02x\n",
212 le16_to_cpu(hdr.seq), len,
213 le16_to_cpu(hdr.type), hdr.flags);
214 if (len <= MAX_MBOXITEM_SIZE) {
215 int n = 0;
5d21608a 216 char printbuf[16 * 3 + 2];
2be7d22f
VK		 217 unsigned char databuf[MAX_MBOXITEM_SIZE];
218 void __iomem *src = wmi_buffer(wil, d.addr) +
219 sizeof(struct wil6210_mbox_hdr);
220 /*
221 * No need to check @src for validity -
222 * we already validated @d.addr while
223 * reading header
224 */
225 wil_memcpy_fromio_32(databuf, src, len);
226 while (n < len) {
227 int l = min(len - n, 16);
8fe59627 228
2be7d22f
VK		 229 hex_dump_to_buffer(databuf + n, l,
230 16, 1, printbuf,
231 sizeof(printbuf),
232 false);
233 seq_printf(s, " : %s\n", printbuf);
234 n += l;
235 }
236 }
237 } else {
8fe59627 238 seq_puts(s, "\n");
2be7d22f
VK		 239 }
240 }
241 out:
8fe59627 242 seq_puts(s, "}\n");
2be7d22f
VK		 243}
244
245static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
246{
247 struct wil6210_priv *wil = s->private;
248
249 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
250 offsetof(struct wil6210_mbox_ctl, tx));
251 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
252 offsetof(struct wil6210_mbox_ctl, rx));
253
254 return 0;
255}
256
257static int wil_mbox_seq_open(struct inode *inode, struct file *file)
258{
259 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
260}
261
262static const struct file_operations fops_mbox = {
263 .open = wil_mbox_seq_open,
264 .release = single_release,
265 .read = seq_read,
266 .llseek = seq_lseek,
267};
268
269static int wil_debugfs_iomem_x32_set(void *data, u64 val)
270{
b9eeb512 271 writel(val, (void __iomem *)data);
2be7d22f
VK		 272 wmb(); /* make sure write propagated to HW */
273
274 return 0;
275}
276
277static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
278{
b9eeb512 279 *val = readl((void __iomem *)data);
2be7d22f
VK		 280
281 return 0;
282}
283
284DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
285 wil_debugfs_iomem_x32_set, "0x%08llx\n");
286
287static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
0ecc833b 288 umode_t mode,
2be7d22f 289 struct dentry *parent,
b7cde470 290 void *value)
2be7d22f 291{
b7cde470 292 return debugfs_create_file(name, mode, parent, value,
2be7d22f
VK		 293 &fops_iomem_x32);
294}
295
3de6cf20
VK		 296static int wil_debugfs_ulong_set(void *data, u64 val)
297{
298 *(ulong *)data = val;
299 return 0;
300}
8fe59627 301
3de6cf20
VK		 302static int wil_debugfs_ulong_get(void *data, u64 *val)
303{
304 *val = *(ulong *)data;
305 return 0;
306}
8fe59627 307
3de6cf20 308DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
8ea06188 309 wil_debugfs_ulong_set, "0x%llx\n");
3de6cf20
VK		 310
311static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
312 struct dentry *parent,
313 ulong *value)
314{
315 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
316}
317
b7cde470
VK		 318/**
319 * wil6210_debugfs_init_offset - create set of debugfs files
320 * @wil - driver's context, used for printing
321 * @dbg - directory on the debugfs, where files will be created
322 * @base - base address used in address calculation
323 * @tbl - table with file descriptions. Should be terminated with empty element.
324 *
325 * Creates files accordingly to the @tbl.
326 */
327static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
328 struct dentry *dbg, void *base,
329 const struct dbg_off * const tbl)
330{
331 int i;
332
333 for (i = 0; tbl[i].name; i++) {
867fa0d4 334 struct dentry *f;
b7cde470
VK		 335
336 switch (tbl[i].type) {
337 case doff_u32:
338 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
339 base + tbl[i].off);
340 break;
341 case doff_x32:
342 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
343 base + tbl[i].off);
344 break;
345 case doff_ulong:
346 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
347 dbg, base + tbl[i].off);
348 break;
349 case doff_io32:
350 f = wil_debugfs_create_iomem_x32(tbl[i].name,
351 tbl[i].mode, dbg,
352 base + tbl[i].off);
353 break;
867fa0d4
VK		 354 default:
355 f = ERR_PTR(-EINVAL);
b7cde470
VK		 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
363static 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};
8fe59627 373
2be7d22f
VK		 374static 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
b7cde470
VK		 383 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
384 isr_off);
2be7d22f
VK		 385
386 return 0;
387}
388
b7cde470
VK		 389static 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
2be7d22f
VK		 396static 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
b7cde470
VK		 404 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
405 pseudo_isr_off);
2be7d22f
VK		 406
407 return 0;
408}
409
78366f69 410static const struct dbg_off lgc_itr_cnt_off[] = {
b7cde470
VK		 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
78366f69
VK		 417static 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
433static 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
2be7d22f
VK		 449static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
450 struct dentry *parent)
451{
78366f69 452 struct dentry *d, *dtx, *drx;
2be7d22f 453
78366f69 454 d = debugfs_create_dir("ITR_CNT", parent);
2be7d22f
VK		 455 if (IS_ERR_OR_NULL(d))
456 return -ENODEV;
457
78366f69
VK		 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
b7cde470 463 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
78366f69
VK		 464 lgc_itr_cnt_off);
465
466 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
467 tx_itr_cnt_off);
2be7d22f 468
78366f69
VK		 469 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
470 rx_itr_cnt_off);
2be7d22f
VK		 471 return 0;
472}
473
474static 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)
b9eeb512 480 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
2be7d22f
VK		 481 else
482 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
483
484 return 0;
485}
486
487static 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
492static 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
2be7d22f 499static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
8fe59627 500 size_t count, loff_t *ppos)
2be7d22f
VK		 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
538static const struct file_operations fops_ioblob = {
539 .read = wil_read_file_ioblob,
93ecbd64 540 .open = simple_open,
2be7d22f
VK		 541 .llseek = default_llseek,
542};
543
544static
545struct dentry *wil_debugfs_create_ioblob(const char *name,
0ecc833b 546 umode_t mode,
2be7d22f
VK		 547 struct dentry *parent,
548 struct debugfs_blob_wrapper *blob)
549{
550 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
551}
8fe59627 552
2be7d22f
VK		 553/*---reset---*/
554static 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();
2cd0f021 569 wil_reset(wil, true);
2be7d22f
VK		 570
571 return len;
572}
573
574static const struct file_operations fops_reset = {
575 .write = wil_write_file_reset,
93ecbd64 576 .open = simple_open,
2be7d22f 577};
8fe59627 578
0b39aaf2
VK		 579/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
580static 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 = kmalloc(len + 1, GFP_KERNEL);
8fe59627 589
0b39aaf2
VK		 590 if (!kbuf)
591 return -ENOMEM;
359ee627
VK		 592 if (copy_from_user(kbuf, buf, len)) {
593 kfree(kbuf);
0b39aaf2 594 return -EIO;
359ee627 595 }
0b39aaf2
VK		 596
597 kbuf[len] = '\0';
598 rc = kstrtol(kbuf, 0, &channel);
599 kfree(kbuf);
600 if (rc)
601 return rc;
602
603 if ((channel < 0) || (channel > 4)) {
604 wil_err(wil, "Invalid channel %ld\n", channel);
605 return -EINVAL;
606 }
607 on = !!channel;
608
609 if (on) {
610 rc = wmi_set_channel(wil, (int)channel);
611 if (rc)
612 return rc;
613 }
614
615 rc = wmi_rxon(wil, on);
616 if (rc)
617 return rc;
618
619 return len;
620}
621
622static const struct file_operations fops_rxon = {
623 .write = wil_write_file_rxon,
624 .open = simple_open,
625};
8fe59627 626
49cb5dfb
VK		 627/* block ack control, write:
628 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
629 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
630 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
3277213f 631 */
49cb5dfb
VK		 632static ssize_t wil_write_back(struct file *file, const char __user *buf,
633 size_t len, loff_t *ppos)
3277213f
VK		 634{
635 struct wil6210_priv *wil = file->private_data;
636 int rc;
3277213f 637 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
2a19f776 638 char cmd[9];
49cb5dfb 639 int p1, p2, p3;
3277213f
VK		 640
641 if (!kbuf)
642 return -ENOMEM;
643
644 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
645 if (rc != len) {
646 kfree(kbuf);
647 return rc >= 0 ? -EIO : rc;
648 }
649
650 kbuf[len] = '\0';
49cb5dfb 651 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
3277213f
VK		 652 kfree(kbuf);
653
49cb5dfb 654 if (rc < 0)
3277213f 655 return rc;
49cb5dfb 656 if (rc < 2)
3277213f
VK		 657 return -EINVAL;
658
49cb5dfb
VK		 659 if (0 == strcmp(cmd, "add")) {
660 if (rc < 3) {
661 wil_err(wil, "BACK: add require at least 2 params\n");
662 return -EINVAL;
663 }
664 if (rc < 4)
665 p3 = 0;
666 wmi_addba(wil, p1, p2, p3);
667 } else if (0 == strcmp(cmd, "del_tx")) {
668 if (rc < 3)
669 p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
670 wmi_delba_tx(wil, p1, p2);
671 } else if (0 == strcmp(cmd, "del_rx")) {
672 if (rc < 3) {
673 wil_err(wil,
674 "BACK: del_rx require at least 2 params\n");
675 return -EINVAL;
676 }
677 if (rc < 4)
678 p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
679 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3);
680 } else {
681 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
682 return -EINVAL;
683 }
3277213f
VK		 684
685 return len;
686}
687
49cb5dfb
VK		 688static ssize_t wil_read_back(struct file *file, char __user *user_buf,
689 size_t count, loff_t *ppos)
690{
691 static const char text[] = "block ack control, write:\n"
692 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
693 "If missing, <timeout> defaults to 0\n"
694 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
695 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
696 "If missing, <reason> set to \"STA_LEAVING\" (36)\n";
697
698 return simple_read_from_buffer(user_buf, count, ppos, text,
699 sizeof(text));
700}
701
702static const struct file_operations fops_back = {
703 .read = wil_read_back,
704 .write = wil_write_back,
3277213f
VK		 705 .open = simple_open,
706};
707
dc16427b
VK		 708/* pmc control, write:
709 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC
710 * - "free" to release memory allocated for PMC
711 */
712static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
713 size_t len, loff_t *ppos)
714{
715 struct wil6210_priv *wil = file->private_data;
716 int rc;
717 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
718 char cmd[9];
719 int num_descs, desc_size;
720
721 if (!kbuf)
722 return -ENOMEM;
723
724 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
725 if (rc != len) {
726 kfree(kbuf);
727 return rc >= 0 ? -EIO : rc;
728 }
729
730 kbuf[len] = '\0';
731 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
732 kfree(kbuf);
733
734 if (rc < 0)
735 return rc;
736
737 if (rc < 1) {
738 wil_err(wil, "pmccfg: no params given\n");
739 return -EINVAL;
740 }
741
742 if (0 == strcmp(cmd, "alloc")) {
743 if (rc != 3) {
744 wil_err(wil, "pmccfg: alloc requires 2 params\n");
745 return -EINVAL;
746 }
747 wil_pmc_alloc(wil, num_descs, desc_size);
748 } else if (0 == strcmp(cmd, "free")) {
749 if (rc != 1) {
750 wil_err(wil, "pmccfg: free does not have any params\n");
751 return -EINVAL;
752 }
753 wil_pmc_free(wil, true);
754 } else {
755 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
756 return -EINVAL;
757 }
758
759 return len;
760}
761
762static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
763 size_t count, loff_t *ppos)
764{
765 struct wil6210_priv *wil = file->private_data;
766 char text[256];
767 char help[] = "pmc control, write:\n"
768 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
769 " - \"free\" to free memory allocated for pmc\n";
770
771 sprintf(text, "Last command status: %d\n\n%s",
772 wil_pmc_last_cmd_status(wil),
773 help);
774
775 return simple_read_from_buffer(user_buf, count, ppos, text,
776 strlen(text) + 1);
777}
778
779static const struct file_operations fops_pmccfg = {
780 .read = wil_read_pmccfg,
781 .write = wil_write_pmccfg,
782 .open = simple_open,
783};
784
785static const struct file_operations fops_pmcdata = {
786 .open = simple_open,
787 .read = wil_pmc_read,
788 .llseek = wil_pmc_llseek,
789};
790
0b39aaf2
VK		 791/*---tx_mgmt---*/
792/* Write mgmt frame to this file to send it */
793static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
794 size_t len, loff_t *ppos)
795{
796 struct wil6210_priv *wil = file->private_data;
797 struct wiphy *wiphy = wil_to_wiphy(wil);
798 struct wireless_dev *wdev = wil_to_wdev(wil);
799 struct cfg80211_mgmt_tx_params params;
800 int rc;
0b39aaf2 801 void *frame = kmalloc(len, GFP_KERNEL);
8fe59627 802
0b39aaf2
VK		 803 if (!frame)
804 return -ENOMEM;
805
8e09b7d2
LS		 806 if (copy_from_user(frame, buf, len)) {
807 kfree(frame);
0b39aaf2 808 return -EIO;
8e09b7d2 809 }
0b39aaf2
VK		 810
811 params.buf = frame;
812 params.len = len;
813 params.chan = wdev->preset_chandef.chan;
814
815 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
816
817 kfree(frame);
818 wil_info(wil, "%s() -> %d\n", __func__, rc);
819
820 return len;
821}
822
823static const struct file_operations fops_txmgmt = {
824 .write = wil_write_file_txmgmt,
825 .open = simple_open,
826};
2be7d22f 827
ff974e40
VK		 828/* Write WMI command (w/o mbox header) to this file to send it
829 * WMI starts from wil6210_mbox_hdr_wmi header
830 */
831static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
832 size_t len, loff_t *ppos)
833{
834 struct wil6210_priv *wil = file->private_data;
835 struct wil6210_mbox_hdr_wmi *wmi;
836 void *cmd;
837 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
838 u16 cmdid;
839 int rc, rc1;
840
841 if (cmdlen <= 0)
842 return -EINVAL;
843
844 wmi = kmalloc(len, GFP_KERNEL);
845 if (!wmi)
846 return -ENOMEM;
847
848 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
8e09b7d2
LS		 849 if (rc < 0) {
850 kfree(wmi);
ff974e40 851 return rc;
8e09b7d2 852 }
ff974e40
VK		 853
854 cmd = &wmi[1];
855 cmdid = le16_to_cpu(wmi->id);
856
857 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
858 kfree(wmi);
859
860 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
861
862 return rc;
863}
864
865static const struct file_operations fops_wmi = {
866 .write = wil_write_file_wmi,
867 .open = simple_open,
868};
869
c236658f
VK		 870static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
871 const char *prefix)
872{
873 char printbuf[16 * 3 + 2];
874 int i = 0;
8fe59627 875
c236658f
VK		 876 while (i < len) {
877 int l = min(len - i, 16);
8fe59627 878
c236658f
VK		 879 hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
880 sizeof(printbuf), false);
881 seq_printf(s, "%s%s\n", prefix, printbuf);
882 i += l;
883 }
884}
885
886static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
887{
888 int i = 0;
889 int len = skb_headlen(skb);
890 void *p = skb->data;
891 int nr_frags = skb_shinfo(skb)->nr_frags;
892
893 seq_printf(s, " len = %d\n", len);
894 wil_seq_hexdump(s, p, len, " : ");
895
896 if (nr_frags) {
897 seq_printf(s, " nr_frags = %d\n", nr_frags);
898 for (i = 0; i < nr_frags; i++) {
899 const struct skb_frag_struct *frag =
900 &skb_shinfo(skb)->frags[i];
901
902 len = skb_frag_size(frag);
903 p = skb_frag_address_safe(frag);
904 seq_printf(s, " [%2d] : len = %d\n", i, len);
905 wil_seq_hexdump(s, p, len, " : ");
906 }
907 }
908}
909
3a85543e 910/*---------Tx/Rx descriptor------------*/
2be7d22f
VK		 911static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
912{
913 struct wil6210_priv *wil = s->private;
3a85543e 914 struct vring *vring;
af31cb5a 915 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
8fe59627
VK		 916
917 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx;
2be7d22f
VK		 918
919 if (!vring->va) {
af31cb5a 920 if (tx)
3a85543e
VK		 921 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
922 else
923 seq_puts(s, "No Rx VRING\n");
2be7d22f
VK		 924 return 0;
925 }
926
927 if (dbg_txdesc_index < vring->size) {
3a85543e
VK		 928 /* use struct vring_tx_desc for Rx as well,
929 * only field used, .dma.length, is the same
930 */
2be7d22f 931 volatile struct vring_tx_desc *d =
8fe59627 932 &vring->va[dbg_txdesc_index].tx;
2be7d22f 933 volatile u32 *u = (volatile u32 *)d;
f88f113a 934 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
2be7d22f 935
af31cb5a 936 if (tx)
3a85543e
VK		 937 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
938 dbg_txdesc_index);
939 else
940 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
2be7d22f
VK		 941 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
942 u[0], u[1], u[2], u[3]);
943 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
944 u[4], u[5], u[6], u[7]);
39c52ee8 945 seq_printf(s, " SKB = 0x%p\n", skb);
2be7d22f
VK		 946
947 if (skb) {
c236658f
VK		 948 skb_get(skb);
949 wil_seq_print_skb(s, skb);
950 kfree_skb(skb);
2be7d22f 951 }
8fe59627 952 seq_puts(s, "}\n");
2be7d22f 953 } else {
af31cb5a 954 if (tx)
3a85543e
VK		 955 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
956 dbg_vring_index, dbg_txdesc_index,
957 vring->size);
958 else
959 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
960 dbg_txdesc_index, vring->size);
2be7d22f
VK		 961 }
962
963 return 0;
964}
965
966static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
967{
968 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
969}
970
971static const struct file_operations fops_txdesc = {
972 .open = wil_txdesc_seq_open,
973 .release = single_release,
974 .read = seq_read,
975 .llseek = seq_lseek,
976};
977
978/*---------beamforming------------*/
36345ac3
VK		 979static char *wil_bfstatus_str(u32 status)
980{
981 switch (status) {
982 case 0:
983 return "Failed";
984 case 1:
985 return "OK";
986 case 2:
987 return "Retrying";
988 default:
989 return "??";
990 }
991}
992
993static bool is_all_zeros(void * const x_, size_t sz)
994{
995 /* if reply is all-0, ignore this CID */
996 u32 *x = x_;
997 int n;
998
999 for (n = 0; n < sz / sizeof(*x); n++)
1000 if (x[n])
1001 return false;
1002
1003 return true;
1004}
1005
2be7d22f
VK		 1006static int wil_bf_debugfs_show(struct seq_file *s, void *data)
1007{
36345ac3
VK		 1008 int rc;
1009 int i;
2be7d22f 1010 struct wil6210_priv *wil = s->private;
36345ac3
VK		 1011 struct wmi_notify_req_cmd cmd = {
1012 .interval_usec = 0,
1013 };
1014 struct {
1015 struct wil6210_mbox_hdr_wmi wmi;
1016 struct wmi_notify_req_done_event evt;
1017 } __packed reply;
1018
1019 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1020 u32 status;
1021
1022 cmd.cid = i;
1023 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
1024 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
1025 sizeof(reply), 20);
1026 /* if reply is all-0, ignore this CID */
1027 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
1028 continue;
1029
1030 status = le32_to_cpu(reply.evt.status);
1031 seq_printf(s, "CID %d {\n"
1032 " TSF = 0x%016llx\n"
1033 " TxMCS = %2d TxTpt = %4d\n"
1034 " SQI = %4d\n"
1035 " Status = 0x%08x %s\n"
1036 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
1037 " Goodput(rx:tx) %4d:%4d\n"
1038 "}\n",
1039 i,
1040 le64_to_cpu(reply.evt.tsf),
1041 le16_to_cpu(reply.evt.bf_mcs),
1042 le32_to_cpu(reply.evt.tx_tpt),
1043 reply.evt.sqi,
1044 status, wil_bfstatus_str(status),
1045 le16_to_cpu(reply.evt.my_rx_sector),
1046 le16_to_cpu(reply.evt.my_tx_sector),
1047 le16_to_cpu(reply.evt.other_rx_sector),
1048 le16_to_cpu(reply.evt.other_tx_sector),
1049 le32_to_cpu(reply.evt.rx_goodput),
1050 le32_to_cpu(reply.evt.tx_goodput));
1051 }
2be7d22f
VK		 1052 return 0;
1053}
1054
1055static int wil_bf_seq_open(struct inode *inode, struct file *file)
1056{
1057 return single_open(file, wil_bf_debugfs_show, inode->i_private);
1058}
1059
1060static const struct file_operations fops_bf = {
1061 .open = wil_bf_seq_open,
1062 .release = single_release,
1063 .read = seq_read,
1064 .llseek = seq_lseek,
1065};
8fe59627 1066
2be7d22f
VK		 1067/*---------SSID------------*/
1068static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
1069 size_t count, loff_t *ppos)
1070{
1071 struct wil6210_priv *wil = file->private_data;
1072 struct wireless_dev *wdev = wil_to_wdev(wil);
1073
1074 return simple_read_from_buffer(user_buf, count, ppos,
1075 wdev->ssid, wdev->ssid_len);
1076}
1077
1078static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
1079 size_t count, loff_t *ppos)
1080{
1081 struct wil6210_priv *wil = file->private_data;
1082 struct wireless_dev *wdev = wil_to_wdev(wil);
1083 struct net_device *ndev = wil_to_ndev(wil);
1084
1085 if (*ppos != 0) {
1086 wil_err(wil, "Unable to set SSID substring from [%d]\n",
1087 (int)*ppos);
1088 return -EINVAL;
1089 }
1090
1091 if (count > sizeof(wdev->ssid)) {
1092 wil_err(wil, "SSID too long, len = %d\n", (int)count);
1093 return -EINVAL;
1094 }
1095 if (netif_running(ndev)) {
1096 wil_err(wil, "Unable to change SSID on running interface\n");
1097 return -EINVAL;
1098 }
1099
1100 wdev->ssid_len = count;
1101 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
1102 buf, count);
1103}
1104
1105static const struct file_operations fops_ssid = {
1106 .read = wil_read_file_ssid,
1107 .write = wil_write_file_ssid,
93ecbd64 1108 .open = simple_open,
2be7d22f
VK		 1109};
1110
1a2780e0
VK		 1111/*---------temp------------*/
1112static void print_temp(struct seq_file *s, const char *prefix, u32 t)
1113{
1114 switch (t) {
1115 case 0:
1116 case ~(u32)0:
1117 seq_printf(s, "%s N/A\n", prefix);
1118 break;
1119 default:
1120 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
1121 break;
1122 }
1123}
1124
1125static int wil_temp_debugfs_show(struct seq_file *s, void *data)
1126{
1127 struct wil6210_priv *wil = s->private;
1128 u32 t_m, t_r;
1a2780e0 1129 int rc = wmi_get_temperature(wil, &t_m, &t_r);
8fe59627 1130
1a2780e0 1131 if (rc) {
8fe59627 1132 seq_puts(s, "Failed\n");
1a2780e0
VK		 1133 return 0;
1134 }
1135
d45cff9f
VK		 1136 print_temp(s, "T_mac =", t_m);
1137 print_temp(s, "T_radio =", t_r);
1a2780e0
VK		 1138
1139 return 0;
1140}
1141
1142static int wil_temp_seq_open(struct inode *inode, struct file *file)
1143{
1144 return single_open(file, wil_temp_debugfs_show, inode->i_private);
1145}
1146
1147static const struct file_operations fops_temp = {
1148 .open = wil_temp_seq_open,
1149 .release = single_release,
1150 .read = seq_read,
1151 .llseek = seq_lseek,
1152};
1153
9eb82d43
VK		 1154/*---------freq------------*/
1155static int wil_freq_debugfs_show(struct seq_file *s, void *data)
1156{
1157 struct wil6210_priv *wil = s->private;
1158 struct wireless_dev *wdev = wil_to_wdev(wil);
1159 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
1160
1161 seq_printf(s, "Freq = %d\n", freq);
1162
1163 return 0;
1164}
1165
1166static int wil_freq_seq_open(struct inode *inode, struct file *file)
1167{
1168 return single_open(file, wil_freq_debugfs_show, inode->i_private);
1169}
1170
1171static const struct file_operations fops_freq = {
1172 .open = wil_freq_seq_open,
1173 .release = single_release,
1174 .read = seq_read,
1175 .llseek = seq_lseek,
1176};
1177
1178/*---------link------------*/
1179static int wil_link_debugfs_show(struct seq_file *s, void *data)
1180{
1181 struct wil6210_priv *wil = s->private;
1182 struct station_info sinfo;
1183 int i, rc;
1184
1185 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1186 struct wil_sta_info *p = &wil->sta[i];
1187 char *status = "unknown";
8fe59627 1188
9eb82d43
VK		 1189 switch (p->status) {
1190 case wil_sta_unused:
1191 status = "unused ";
1192 break;
1193 case wil_sta_conn_pending:
1194 status = "pending ";
1195 break;
1196 case wil_sta_connected:
1197 status = "connected";
1198 break;
1199 }
230d8442 1200 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
9eb82d43
VK		 1201
1202 if (p->status == wil_sta_connected) {
1203 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
1204 if (rc)
1205 return rc;
1206
1207 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
1208 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
1209 seq_printf(s, " SQ = %d\n", sinfo.signal);
1210 }
1211 }
1212
1213 return 0;
1214}
1215
1216static int wil_link_seq_open(struct inode *inode, struct file *file)
1217{
1218 return single_open(file, wil_link_debugfs_show, inode->i_private);
1219}
1220
1221static const struct file_operations fops_link = {
1222 .open = wil_link_seq_open,
1223 .release = single_release,
1224 .read = seq_read,
1225 .llseek = seq_lseek,
1226};
1227
84bb29b7
VK		 1228/*---------info------------*/
1229static int wil_info_debugfs_show(struct seq_file *s, void *data)
1230{
be299858
VK		 1231 struct wil6210_priv *wil = s->private;
1232 struct net_device *ndev = wil_to_ndev(wil);
84bb29b7 1233 int is_ac = power_supply_is_system_supplied();
be299858
VK		 1234 int rx = atomic_xchg(&wil->isr_count_rx, 0);
1235 int tx = atomic_xchg(&wil->isr_count_tx, 0);
1236 static ulong rxf_old, txf_old;
1237 ulong rxf = ndev->stats.rx_packets;
1238 ulong txf = ndev->stats.tx_packets;
55f8f680 1239 unsigned int i;
84bb29b7
VK		 1240
1241 /* >0 : AC; 0 : battery; <0 : error */
1242 seq_printf(s, "AC powered : %d\n", is_ac);
be299858
VK		 1243 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1244 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1245 rxf_old = rxf;
1246 txf_old = txf;
84bb29b7 1247
55f8f680
VK		 1248#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1249 " " __stringify(x) : ""
1250
1251 for (i = 0; i < ndev->num_tx_queues; i++) {
1252 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1253 unsigned long state = txq->state;
1254
1255 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1256 CHECK_QSTATE(DRV_XOFF),
1257 CHECK_QSTATE(STACK_XOFF),
1258 CHECK_QSTATE(FROZEN)
1259 );
1260 }
1261#undef CHECK_QSTATE
84bb29b7
VK		 1262 return 0;
1263}
1264
1265static int wil_info_seq_open(struct inode *inode, struct file *file)
1266{
1267 return single_open(file, wil_info_debugfs_show, inode->i_private);
1268}
1269
1270static const struct file_operations fops_info = {
1271 .open = wil_info_seq_open,
1272 .release = single_release,
1273 .read = seq_read,
1274 .llseek = seq_lseek,
1275};
1276
c33407a8
VK		 1277/*---------recovery------------*/
1278/* mode = [manual|auto]
1279 * state = [idle|pending|running]
1280 */
1281static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1282 size_t count, loff_t *ppos)
1283{
1284 struct wil6210_priv *wil = file->private_data;
1285 char buf[80];
1286 int n;
1287 static const char * const sstate[] = {"idle", "pending", "running"};
1288
1289 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
1290 no_fw_recovery ? "manual" : "auto",
1291 sstate[wil->recovery_state]);
1292
1293 n = min_t(int, n, sizeof(buf));
1294
1295 return simple_read_from_buffer(user_buf, count, ppos,
1296 buf, n);
1297}
1298
1299static ssize_t wil_write_file_recovery(struct file *file,
1300 const char __user *buf_,
1301 size_t count, loff_t *ppos)
1302{
1303 struct wil6210_priv *wil = file->private_data;
1304 static const char run_command[] = "run";
1305 char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1306 ssize_t rc;
1307
1308 if (wil->recovery_state != fw_recovery_pending) {
1309 wil_err(wil, "No recovery pending\n");
1310 return -EINVAL;
1311 }
1312
1313 if (*ppos != 0) {
1314 wil_err(wil, "Offset [%d]\n", (int)*ppos);
1315 return -EINVAL;
1316 }
1317
1318 if (count > sizeof(buf)) {
1319 wil_err(wil, "Input too long, len = %d\n", (int)count);
1320 return -EINVAL;
1321 }
1322
1323 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
1324 if (rc < 0)
1325 return rc;
1326
1327 buf[rc] = '\0';
1328 if (0 == strcmp(buf, run_command))
1329 wil_set_recovery_state(wil, fw_recovery_running);
1330 else
1331 wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1332
1333 return rc;
1334}
1335
1336static const struct file_operations fops_recovery = {
1337 .read = wil_read_file_recovery,
1338 .write = wil_write_file_recovery,
1339 .open = simple_open,
1340};
1341
3df2cd36 1342/*---------Station matrix------------*/
b4490f42
VK		 1343static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1344{
1345 int i;
1346 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
91a8edcc 1347 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
8fe59627 1348
56637e7b
VK		 1349 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
1350 r->head_seq_num);
b4490f42
VK		 1351 for (i = 0; i < r->buf_size; i++) {
1352 if (i == index)
1353 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1354 else
1355 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1356 }
91a8edcc
VK		 1357 seq_printf(s,
1358 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n",
1359 r->total, drop_dup + drop_old, drop_dup, drop_old,
1360 r->ssn_last_drop);
b4490f42 1361}
3df2cd36
VK		 1362
1363static int wil_sta_debugfs_show(struct seq_file *s, void *data)
bd33273b 1364__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
3df2cd36
VK		 1365{
1366 struct wil6210_priv *wil = s->private;
c4a110d8 1367 int i, tid, mcs;
3df2cd36
VK		 1368
1369 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1370 struct wil_sta_info *p = &wil->sta[i];
1371 char *status = "unknown";
8fe59627 1372
3df2cd36
VK		 1373 switch (p->status) {
1374 case wil_sta_unused:
1375 status = "unused ";
1376 break;
1377 case wil_sta_conn_pending:
1378 status = "pending ";
1379 break;
1380 case wil_sta_connected:
1381 status = "connected";
1382 break;
1383 }
230d8442 1384 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);
b4490f42
VK		 1385
1386 if (p->status == wil_sta_connected) {
bd33273b 1387 spin_lock_bh(&p->tid_rx_lock);
b4490f42
VK		 1388 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1389 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
8fe59627 1390
b4490f42
VK		 1391 if (r) {
1392 seq_printf(s, "[%2d] ", tid);
1393 wil_print_rxtid(s, r);
1394 }
1395 }
bd33273b 1396 spin_unlock_bh(&p->tid_rx_lock);
c4a110d8
VK		 1397 seq_puts(s, "Rx/MCS:");
1398 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
1399 mcs++)
1400 seq_printf(s, " %lld",
1401 p->stats.rx_per_mcs[mcs]);
1402 seq_puts(s, "\n");
b4490f42 1403 }
3df2cd36
VK		 1404 }
1405
1406 return 0;
1407}
1408
1409static int wil_sta_seq_open(struct inode *inode, struct file *file)
1410{
1411 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1412}
1413
1414static const struct file_operations fops_sta = {
1415 .open = wil_sta_seq_open,
1416 .release = single_release,
1417 .read = seq_read,
1418 .llseek = seq_lseek,
1419};
1420
2be7d22f 1421/*----------------*/
b541d0a0
VK		 1422static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1423 struct dentry *dbg)
1424{
1425 int i;
1426 char name[32];
1427
1428 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1429 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1430 const struct fw_map *map = &fw_mapping[i];
1431
1432 if (!map->name)
1433 continue;
1434
1435 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1436 blob->size = map->to - map->from;
1437 snprintf(name, sizeof(name), "blob_%s", map->name);
1438 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1439 }
1440}
1441
b7cde470
VK		 1442/* misc files */
1443static const struct {
1444 const char *name;
1445 umode_t mode;
1446 const struct file_operations *fops;
1447} dbg_files[] = {
1448 {"mbox", S_IRUGO, &fops_mbox},
1449 {"vrings", S_IRUGO, &fops_vring},
1450 {"stations", S_IRUGO, &fops_sta},
1451 {"desc", S_IRUGO, &fops_txdesc},
1452 {"bf", S_IRUGO, &fops_bf},
1453 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1454 {"mem_val", S_IRUGO, &fops_memread},
1455 {"reset", S_IWUSR, &fops_reset},
1456 {"rxon", S_IWUSR, &fops_rxon},
1457 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1458 {"wmi_send", S_IWUSR, &fops_wmi},
49cb5dfb 1459 {"back", S_IRUGO | S_IWUSR, &fops_back},
dc16427b
VK		 1460 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg},
1461 {"pmcdata", S_IRUGO, &fops_pmcdata},
b7cde470
VK		 1462 {"temp", S_IRUGO, &fops_temp},
1463 {"freq", S_IRUGO, &fops_freq},
1464 {"link", S_IRUGO, &fops_link},
1465 {"info", S_IRUGO, &fops_info},
c33407a8 1466 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery},
b7cde470
VK		 1467};
1468
1469static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1470 struct dentry *dbg)
1471{
1472 int i;
1473
1474 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1475 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1476 wil, dbg_files[i].fops);
1477}
1478
1479/* interrupt control blocks */
1480static const struct {
1481 const char *name;
1482 u32 icr_off;
1483} dbg_icr[] = {
1484 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1485 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1486 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1487 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1488};
1489
1490static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1491 struct dentry *dbg)
1492{
1493 int i;
1494
1495 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1496 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1497 dbg_icr[i].icr_off);
1498}
1499
1500#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1501 offsetof(struct wil6210_priv, name), type}
1502
1503/* fields in struct wil6210_priv */
1504static const struct dbg_off dbg_wil_off[] = {
774974e5 1505 WIL_FIELD(privacy, S_IRUGO, doff_u32),
9419b6a2 1506 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong),
b7cde470
VK		 1507 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1508 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
c33407a8 1509 WIL_FIELD(recovery_count, S_IRUGO, doff_u32),
02beaf1a 1510 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32),
b7cde470
VK		 1511 {},
1512};
1513
1514static const struct dbg_off dbg_wil_regs[] = {
1515 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1516 doff_io32},
1517 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1518 {},
1519};
1520
1521/* static parameters */
1522static const struct dbg_off dbg_statics[] = {
1523 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1524 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1525 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
0436fd9a
VS		 1526 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh,
1527 doff_u32},
b7cde470
VK		 1528 {},
1529};
1530
2be7d22f
VK		 1531int wil6210_debugfs_init(struct wil6210_priv *wil)
1532{
1533 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1534 wil_to_wiphy(wil)->debugfsdir);
1535
1536 if (IS_ERR_OR_NULL(dbg))
1537 return -ENODEV;
1538
dc16427b
VK		 1539 wil_pmc_init(wil);
1540
b7cde470
VK		 1541 wil6210_debugfs_init_files(wil, dbg);
1542 wil6210_debugfs_init_isr(wil, dbg);
1543 wil6210_debugfs_init_blobs(wil, dbg);
1544 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1545 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1546 dbg_wil_regs);
1547 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1548
2be7d22f 1549 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
2be7d22f 1550
b7cde470 1551 wil6210_debugfs_create_ITR_CNT(wil, dbg);
2be7d22f
VK		 1552
1553 return 0;
1554}
1555
1556void wil6210_debugfs_remove(struct wil6210_priv *wil)
1557{
1558 debugfs_remove_recursive(wil->debug);
1559 wil->debug = NULL;
dc16427b
VK		 1560
1561 /* free pmc memory without sending command to fw, as it will
1562 * be reset on the way down anyway
1563 */
1564 wil_pmc_free(wil, false);
2be7d22f 1565}
Linux kernel - Deliverables
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