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ath9k: add debugfs files for reading/writing the rx and tx chainmask
[linux-2.6-block.git] / drivers / net / wireless / ath / ath9k / debug.c
CommitLineData
88b126af 1/*
cee075a2 2 * Copyright (c) 2008-2009 Atheros Communications Inc.
88b126af
S		 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
52103115
GJ		 17#include <asm/unaligned.h>
18
394cf0a1 19#include "ath9k.h"
88b126af 20
475a6e4d
LR		 21#define REG_WRITE_D(_ah, _reg, _val) \
22 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
23#define REG_READ_D(_ah, _reg) \
24 ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
25
19d8bc22
GJ		 26static struct dentry *ath9k_debugfs_root;
27
2a163c6d
S		 28static int ath9k_debugfs_open(struct inode *inode, struct file *file)
29{
30 file->private_data = inode->i_private;
31 return 0;
32}
33
a830df07
FF		 34#ifdef CONFIG_ATH_DEBUG
35
2493928e
JH		 36static ssize_t read_file_debug(struct file *file, char __user *user_buf,
37 size_t count, loff_t *ppos)
38{
39 struct ath_softc *sc = file->private_data;
c46917bb 40 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e 41 char buf[32];
581f725c
VT		 42 unsigned int len;
43
c46917bb 44 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->debug_mask);
2493928e
JH		 45 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
46}
47
48static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
49 size_t count, loff_t *ppos)
50{
51 struct ath_softc *sc = file->private_data;
c46917bb 52 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e
JH		 53 unsigned long mask;
54 char buf[32];
581f725c
VT		 55 ssize_t len;
56
57 len = min(count, sizeof(buf) - 1);
58 if (copy_from_user(buf, user_buf, len))
59 return -EINVAL;
60
61 buf[len] = '\0';
62 if (strict_strtoul(buf, 0, &mask))
63 return -EINVAL;
64
c46917bb 65 common->debug_mask = mask;
2493928e
JH		 66 return count;
67}
68
69static const struct file_operations fops_debug = {
70 .read = read_file_debug,
71 .write = write_file_debug,
72 .open = ath9k_debugfs_open,
73 .owner = THIS_MODULE
74};
75
a830df07
FF		 76#endif
77
991a0987
PR		 78#define DMA_BUF_LEN 1024
79
15340694
FF		 80static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
81 size_t count, loff_t *ppos)
82{
83 struct ath_softc *sc = file->private_data;
84 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
85 char buf[32];
86 unsigned int len;
87
88 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->tx_chainmask);
89 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
90}
91
92static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
93 size_t count, loff_t *ppos)
94{
95 struct ath_softc *sc = file->private_data;
96 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
97 unsigned long mask;
98 char buf[32];
99 ssize_t len;
100
101 len = min(count, sizeof(buf) - 1);
102 if (copy_from_user(buf, user_buf, len))
103 return -EINVAL;
104
105 buf[len] = '\0';
106 if (strict_strtoul(buf, 0, &mask))
107 return -EINVAL;
108
109 common->tx_chainmask = mask;
110 sc->sc_ah->caps.tx_chainmask = mask;
111 return count;
112}
113
114static const struct file_operations fops_tx_chainmask = {
115 .read = read_file_tx_chainmask,
116 .write = write_file_tx_chainmask,
117 .open = ath9k_debugfs_open,
118 .owner = THIS_MODULE
119};
120
121
122static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
123 size_t count, loff_t *ppos)
124{
125 struct ath_softc *sc = file->private_data;
126 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
127 char buf[32];
128 unsigned int len;
129
130 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->rx_chainmask);
131 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
132}
133
134static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
135 size_t count, loff_t *ppos)
136{
137 struct ath_softc *sc = file->private_data;
138 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
139 unsigned long mask;
140 char buf[32];
141 ssize_t len;
142
143 len = min(count, sizeof(buf) - 1);
144 if (copy_from_user(buf, user_buf, len))
145 return -EINVAL;
146
147 buf[len] = '\0';
148 if (strict_strtoul(buf, 0, &mask))
149 return -EINVAL;
150
151 common->rx_chainmask = mask;
152 sc->sc_ah->caps.rx_chainmask = mask;
153 return count;
154}
155
156static const struct file_operations fops_rx_chainmask = {
157 .read = read_file_rx_chainmask,
158 .write = write_file_rx_chainmask,
159 .open = ath9k_debugfs_open,
160 .owner = THIS_MODULE
161};
162
163
2a163c6d
S		 164static ssize_t read_file_dma(struct file *file, char __user *user_buf,
165 size_t count, loff_t *ppos)
166{
167 struct ath_softc *sc = file->private_data;
cbe61d8a 168 struct ath_hw *ah = sc->sc_ah;
991a0987
PR		 169 char *buf;
170 int retval;
2a163c6d
S		 171 unsigned int len = 0;
172 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
173 int i, qcuOffset = 0, dcuOffset = 0;
174 u32 *qcuBase = &val[0], *dcuBase = &val[4];
175
991a0987
PR		 176 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
177 if (!buf)
178 return 0;
179
7cf4a2e7
S		 180 ath9k_ps_wakeup(sc);
181
475a6e4d 182 REG_WRITE_D(ah, AR_MACMISC,
2a163c6d
S		 183 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
184 (AR_MACMISC_MISC_OBS_BUS_1 <<
185 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
186
991a0987 187 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 188 "Raw DMA Debug values:\n");
189
190 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
191 if (i % 4 == 0)
991a0987 192 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 193
475a6e4d 194 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
991a0987 195 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
2a163c6d
S		 196 i, val[i]);
197 }
198
991a0987
PR		 199 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
200 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 201 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
202
203 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
204 if (i == 8) {
205 qcuOffset = 0;
206 qcuBase++;
207 }
208
209 if (i == 6) {
210 dcuOffset = 0;
211 dcuBase++;
212 }
213
991a0987 214 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 215 "%2d %2x %1x %2x %2x\n",
216 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
217 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
218 val[2] & (0x7 << (i * 3)) >> (i * 3),
219 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
220 }
221
991a0987 222 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 223
991a0987 224 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 225 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
226 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
991a0987 227 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 228 "qcu_complete state: %2x dcu_complete state: %2x\n",
229 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
991a0987 230 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 231 "dcu_arb state: %2x dcu_fp state: %2x\n",
232 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
991a0987 233 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 234 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
235 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
991a0987 236 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 237 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
238 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
991a0987 239 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 240 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
241 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
242
60ece404 243 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
475a6e4d 244 REG_READ_D(ah, AR_OBS_BUS_1));
991a0987 245 len += snprintf(buf + len, DMA_BUF_LEN - len,
60ece404 246 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
2a163c6d 247
7cf4a2e7
S		 248 ath9k_ps_restore(sc);
249
991a0987
PR		 250 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
251 kfree(buf);
252 return retval;
2a163c6d
S		 253}
254
255static const struct file_operations fops_dma = {
256 .read = read_file_dma,
257 .open = ath9k_debugfs_open,
258 .owner = THIS_MODULE
259};
260
817e11de
S		 261
262void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
263{
264 if (status)
17d7904d 265 sc->debug.stats.istats.total++;
a9616f41
LR		 266 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
267 if (status & ATH9K_INT_RXLP)
268 sc->debug.stats.istats.rxlp++;
269 if (status & ATH9K_INT_RXHP)
270 sc->debug.stats.istats.rxhp++;
271 } else {
272 if (status & ATH9K_INT_RX)
273 sc->debug.stats.istats.rxok++;
274 }
817e11de 275 if (status & ATH9K_INT_RXEOL)
17d7904d 276 sc->debug.stats.istats.rxeol++;
817e11de 277 if (status & ATH9K_INT_RXORN)
17d7904d 278 sc->debug.stats.istats.rxorn++;
817e11de 279 if (status & ATH9K_INT_TX)
17d7904d 280 sc->debug.stats.istats.txok++;
817e11de 281 if (status & ATH9K_INT_TXURN)
17d7904d 282 sc->debug.stats.istats.txurn++;
817e11de 283 if (status & ATH9K_INT_MIB)
17d7904d 284 sc->debug.stats.istats.mib++;
817e11de 285 if (status & ATH9K_INT_RXPHY)
17d7904d 286 sc->debug.stats.istats.rxphyerr++;
817e11de 287 if (status & ATH9K_INT_RXKCM)
17d7904d 288 sc->debug.stats.istats.rx_keycache_miss++;
817e11de 289 if (status & ATH9K_INT_SWBA)
17d7904d 290 sc->debug.stats.istats.swba++;
817e11de 291 if (status & ATH9K_INT_BMISS)
17d7904d 292 sc->debug.stats.istats.bmiss++;
817e11de 293 if (status & ATH9K_INT_BNR)
17d7904d 294 sc->debug.stats.istats.bnr++;
817e11de 295 if (status & ATH9K_INT_CST)
17d7904d 296 sc->debug.stats.istats.cst++;
817e11de 297 if (status & ATH9K_INT_GTT)
17d7904d 298 sc->debug.stats.istats.gtt++;
817e11de 299 if (status & ATH9K_INT_TIM)
17d7904d 300 sc->debug.stats.istats.tim++;
817e11de 301 if (status & ATH9K_INT_CABEND)
17d7904d 302 sc->debug.stats.istats.cabend++;
817e11de 303 if (status & ATH9K_INT_DTIMSYNC)
17d7904d 304 sc->debug.stats.istats.dtimsync++;
817e11de 305 if (status & ATH9K_INT_DTIM)
17d7904d 306 sc->debug.stats.istats.dtim++;
817e11de
S		 307}
308
309static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
310 size_t count, loff_t *ppos)
311{
312 struct ath_softc *sc = file->private_data;
313 char buf[512];
314 unsigned int len = 0;
315
a9616f41
LR		 316 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
317 len += snprintf(buf + len, sizeof(buf) - len,
318 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
319 len += snprintf(buf + len, sizeof(buf) - len,
320 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
321 } else {
322 len += snprintf(buf + len, sizeof(buf) - len,
323 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
324 }
817e11de 325 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 326 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
817e11de 327 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 328 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
817e11de 329 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 330 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
817e11de 331 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 332 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
817e11de 333 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 334 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
817e11de 335 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 336 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
817e11de 337 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 338 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
817e11de 339 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 340 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
817e11de 341 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 342 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
817e11de 343 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 344 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
817e11de 345 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 346 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
817e11de 347 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 348 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
817e11de 349 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 350 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
817e11de 351 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 352 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
817e11de 353 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 354 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
817e11de 355 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 356 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
817e11de 357 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 358 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
817e11de
S		 359
360 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
361}
362
363static const struct file_operations fops_interrupt = {
364 .read = read_file_interrupt,
365 .open = ath9k_debugfs_open,
366 .owner = THIS_MODULE
367};
368
545750d3 369void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
7a7dec65 370{
bedf087a 371 struct ath_rc_stats *stats;
7a7dec65 372
545750d3 373 stats = &sc->debug.stats.rcstats[final_rate];
bedf087a 374 stats->success++;
7a7dec65
S		 375}
376
029bc432 377void ath_debug_stat_retries(struct ath_softc *sc, int rix,
9e712790 378 int xretries, int retries, u8 per)
029bc432 379{
bedf087a 380 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
029bc432 381
bedf087a
JH		 382 stats->xretries += xretries;
383 stats->retries += retries;
384 stats->per = per;
029bc432
S		 385}
386
bedf087a
JH		 387static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
388 size_t count, loff_t *ppos)
7a7dec65
S		 389{
390 struct ath_softc *sc = file->private_data;
bedf087a
JH		 391 char *buf;
392 unsigned int len = 0, max;
7a7dec65 393 int i = 0;
bedf087a 394 ssize_t retval;
7a7dec65 395
bedf087a
JH		 396 if (sc->cur_rate_table == NULL)
397 return 0;
7a7dec65 398
c755ad34 399 max = 80 + sc->cur_rate_table->rate_cnt * 1024;
bedf087a
JH		 400 buf = kmalloc(max + 1, GFP_KERNEL);
401 if (buf == NULL)
402 return 0;
403 buf[max] = 0;
7a7dec65 404
c755ad34
LR		 405 len += sprintf(buf, "%6s %6s %6s "
406 "%10s %10s %10s %10s\n",
407 "HT", "MCS", "Rate",
408 "Success", "Retries", "XRetries", "PER");
7a7dec65
S		 409
410 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
bedf087a
JH		 411 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
412 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
c755ad34
LR		 413 char mcs[5];
414 char htmode[5];
415 int used_mcs = 0, used_htmode = 0;
416
417 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
418 used_mcs = snprintf(mcs, 5, "%d",
419 sc->cur_rate_table->info[i].ratecode);
420
421 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
422 used_htmode = snprintf(htmode, 5, "HT40");
423 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
424 used_htmode = snprintf(htmode, 5, "HT20");
425 else
426 used_htmode = snprintf(htmode, 5, "????");
427 }
428
429 mcs[used_mcs] = '\0';
430 htmode[used_htmode] = '\0';
bedf087a
JH		 431
432 len += snprintf(buf + len, max - len,
c755ad34
LR		 433 "%6s %6s %3u.%d: "
434 "%10u %10u %10u %10u\n",
435 htmode,
436 mcs,
437 ratekbps / 1000,
438 (ratekbps % 1000) / 100,
439 stats->success,
440 stats->retries,
441 stats->xretries,
bedf087a 442 stats->per);
7a7dec65
S		 443 }
444
bedf087a
JH		 445 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
446 kfree(buf);
447 return retval;
7a7dec65
S		 448}
449
450static const struct file_operations fops_rcstat = {
451 .read = read_file_rcstat,
452 .open = ath9k_debugfs_open,
453 .owner = THIS_MODULE
454};
27abe060 455
39d89cd3
JM		 456static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
457{
458 switch (state) {
459 case ATH_WIPHY_INACTIVE:
460 return "INACTIVE";
461 case ATH_WIPHY_ACTIVE:
462 return "ACTIVE";
463 case ATH_WIPHY_PAUSING:
464 return "PAUSING";
465 case ATH_WIPHY_PAUSED:
466 return "PAUSED";
467 case ATH_WIPHY_SCAN:
468 return "SCAN";
469 }
470 return "?";
471}
472
473static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
474 size_t count, loff_t *ppos)
475{
476 struct ath_softc *sc = file->private_data;
477 char buf[512];
478 unsigned int len = 0;
479 int i;
480 u8 addr[ETH_ALEN];
481
482 len += snprintf(buf + len, sizeof(buf) - len,
483 "primary: %s (%s chan=%d ht=%d)\n",
484 wiphy_name(sc->pri_wiphy->hw->wiphy),
485 ath_wiphy_state_str(sc->pri_wiphy->state),
486 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
487 for (i = 0; i < sc->num_sec_wiphy; i++) {
488 struct ath_wiphy *aphy = sc->sec_wiphy[i];
489 if (aphy == NULL)
490 continue;
491 len += snprintf(buf + len, sizeof(buf) - len,
492 "secondary: %s (%s chan=%d ht=%d)\n",
493 wiphy_name(aphy->hw->wiphy),
494 ath_wiphy_state_str(aphy->state),
495 aphy->chan_idx, aphy->chan_is_ht);
496 }
497
475a6e4d
LR		 498 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
499 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
39d89cd3
JM		 500 len += snprintf(buf + len, sizeof(buf) - len,
501 "addr: %pM\n", addr);
475a6e4d
LR		 502 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
503 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
39d89cd3
JM		 504 len += snprintf(buf + len, sizeof(buf) - len,
505 "addrmask: %pM\n", addr);
506
507 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
508}
509
510static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
511{
512 int i;
513 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
514 return sc->pri_wiphy;
515 for (i = 0; i < sc->num_sec_wiphy; i++) {
516 struct ath_wiphy *aphy = sc->sec_wiphy[i];
517 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
518 return aphy;
519 }
520 return NULL;
521}
522
523static int del_wiphy(struct ath_softc *sc, const char *name)
524{
525 struct ath_wiphy *aphy = get_wiphy(sc, name);
526 if (!aphy)
527 return -ENOENT;
528 return ath9k_wiphy_del(aphy);
529}
530
531static int pause_wiphy(struct ath_softc *sc, const char *name)
532{
533 struct ath_wiphy *aphy = get_wiphy(sc, name);
534 if (!aphy)
535 return -ENOENT;
536 return ath9k_wiphy_pause(aphy);
537}
538
539static int unpause_wiphy(struct ath_softc *sc, const char *name)
540{
541 struct ath_wiphy *aphy = get_wiphy(sc, name);
542 if (!aphy)
543 return -ENOENT;
544 return ath9k_wiphy_unpause(aphy);
545}
546
547static int select_wiphy(struct ath_softc *sc, const char *name)
548{
549 struct ath_wiphy *aphy = get_wiphy(sc, name);
550 if (!aphy)
551 return -ENOENT;
552 return ath9k_wiphy_select(aphy);
553}
554
555static int schedule_wiphy(struct ath_softc *sc, const char *msec)
556{
557 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
558 return 0;
559}
560
561static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
562 size_t count, loff_t *ppos)
563{
564 struct ath_softc *sc = file->private_data;
565 char buf[50];
566 size_t len;
567
568 len = min(count, sizeof(buf) - 1);
569 if (copy_from_user(buf, user_buf, len))
570 return -EFAULT;
571 buf[len] = '\0';
572 if (len > 0 && buf[len - 1] == '\n')
573 buf[len - 1] = '\0';
574
575 if (strncmp(buf, "add", 3) == 0) {
576 int res = ath9k_wiphy_add(sc);
577 if (res < 0)
578 return res;
579 } else if (strncmp(buf, "del=", 4) == 0) {
580 int res = del_wiphy(sc, buf + 4);
581 if (res < 0)
582 return res;
583 } else if (strncmp(buf, "pause=", 6) == 0) {
584 int res = pause_wiphy(sc, buf + 6);
585 if (res < 0)
586 return res;
587 } else if (strncmp(buf, "unpause=", 8) == 0) {
588 int res = unpause_wiphy(sc, buf + 8);
589 if (res < 0)
590 return res;
591 } else if (strncmp(buf, "select=", 7) == 0) {
592 int res = select_wiphy(sc, buf + 7);
593 if (res < 0)
594 return res;
595 } else if (strncmp(buf, "schedule=", 9) == 0) {
596 int res = schedule_wiphy(sc, buf + 9);
597 if (res < 0)
598 return res;
599 } else
600 return -EOPNOTSUPP;
601
602 return count;
603}
604
605static const struct file_operations fops_wiphy = {
606 .read = read_file_wiphy,
607 .write = write_file_wiphy,
608 .open = ath9k_debugfs_open,
609 .owner = THIS_MODULE
610};
611
fec247c0
S		 612#define PR(str, elem) \
613 do { \
614 len += snprintf(buf + len, size - len, \
615 "%s%13u%11u%10u%10u\n", str, \
616 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
617 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
618 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
619 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
620} while(0)
621
622static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
623 size_t count, loff_t *ppos)
624{
625 struct ath_softc *sc = file->private_data;
626 char *buf;
627 unsigned int len = 0, size = 2048;
628 ssize_t retval = 0;
629
630 buf = kzalloc(size, GFP_KERNEL);
631 if (buf == NULL)
632 return 0;
633
634 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
635
636 PR("MPDUs Queued: ", queued);
637 PR("MPDUs Completed: ", completed);
638 PR("Aggregates: ", a_aggr);
639 PR("AMPDUs Queued: ", a_queued);
640 PR("AMPDUs Completed:", a_completed);
641 PR("AMPDUs Retried: ", a_retries);
642 PR("AMPDUs XRetried: ", a_xretries);
643 PR("FIFO Underrun: ", fifo_underrun);
644 PR("TXOP Exceeded: ", xtxop);
645 PR("TXTIMER Expiry: ", timer_exp);
646 PR("DESC CFG Error: ", desc_cfg_err);
647 PR("DATA Underrun: ", data_underrun);
648 PR("DELIM Underrun: ", delim_underrun);
649
650 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
651 kfree(buf);
652
653 return retval;
654}
655
656void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
db1a052b 657 struct ath_buf *bf, struct ath_tx_status *ts)
fec247c0 658{
fec247c0
S		 659 if (bf_isampdu(bf)) {
660 if (bf_isxretried(bf))
661 TX_STAT_INC(txq->axq_qnum, a_xretries);
662 else
663 TX_STAT_INC(txq->axq_qnum, a_completed);
664 } else {
665 TX_STAT_INC(txq->axq_qnum, completed);
666 }
667
db1a052b 668 if (ts->ts_status & ATH9K_TXERR_FIFO)
fec247c0 669 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
db1a052b 670 if (ts->ts_status & ATH9K_TXERR_XTXOP)
fec247c0 671 TX_STAT_INC(txq->axq_qnum, xtxop);
db1a052b 672 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
fec247c0 673 TX_STAT_INC(txq->axq_qnum, timer_exp);
db1a052b 674 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
fec247c0 675 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
db1a052b 676 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
fec247c0 677 TX_STAT_INC(txq->axq_qnum, data_underrun);
db1a052b 678 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
fec247c0
S		 679 TX_STAT_INC(txq->axq_qnum, delim_underrun);
680}
681
682static const struct file_operations fops_xmit = {
683 .read = read_file_xmit,
684 .open = ath9k_debugfs_open,
685 .owner = THIS_MODULE
686};
39d89cd3 687
1395d3f0
S		 688static ssize_t read_file_recv(struct file *file, char __user *user_buf,
689 size_t count, loff_t *ppos)
690{
691#define PHY_ERR(s, p) \
692 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
693 sc->debug.stats.rxstats.phy_err_stats[p]);
694
695 struct ath_softc *sc = file->private_data;
696 char *buf;
697 unsigned int len = 0, size = 1152;
698 ssize_t retval = 0;
699
700 buf = kzalloc(size, GFP_KERNEL);
701 if (buf == NULL)
702 return 0;
703
704 len += snprintf(buf + len, size - len,
705 "%18s : %10u\n", "CRC ERR",
706 sc->debug.stats.rxstats.crc_err);
707 len += snprintf(buf + len, size - len,
708 "%18s : %10u\n", "DECRYPT CRC ERR",
709 sc->debug.stats.rxstats.decrypt_crc_err);
710 len += snprintf(buf + len, size - len,
711 "%18s : %10u\n", "PHY ERR",
712 sc->debug.stats.rxstats.phy_err);
713 len += snprintf(buf + len, size - len,
714 "%18s : %10u\n", "MIC ERR",
715 sc->debug.stats.rxstats.mic_err);
716 len += snprintf(buf + len, size - len,
717 "%18s : %10u\n", "PRE-DELIM CRC ERR",
718 sc->debug.stats.rxstats.pre_delim_crc_err);
719 len += snprintf(buf + len, size - len,
720 "%18s : %10u\n", "POST-DELIM CRC ERR",
721 sc->debug.stats.rxstats.post_delim_crc_err);
722 len += snprintf(buf + len, size - len,
723 "%18s : %10u\n", "DECRYPT BUSY ERR",
724 sc->debug.stats.rxstats.decrypt_busy_err);
725
726 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
727 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
728 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
729 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
730 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
731 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
732 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
733 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
734 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
735 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
736 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
737 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
738 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
739 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
740 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
741 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
742 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
743 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
744 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
745 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
746 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
747 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
748 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
749 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
750 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
751 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
752
753 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
754 kfree(buf);
755
756 return retval;
757
758#undef PHY_ERR
759}
760
8e6f5aa2 761void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1395d3f0
S		 762{
763#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
764#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
765
1395d3f0
S		 766 u32 phyerr;
767
8e6f5aa2 768 if (rs->rs_status & ATH9K_RXERR_CRC)
1395d3f0 769 RX_STAT_INC(crc_err);
8e6f5aa2 770 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1395d3f0 771 RX_STAT_INC(decrypt_crc_err);
8e6f5aa2 772 if (rs->rs_status & ATH9K_RXERR_MIC)
1395d3f0 773 RX_STAT_INC(mic_err);
8e6f5aa2 774 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1395d3f0 775 RX_STAT_INC(pre_delim_crc_err);
8e6f5aa2 776 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1395d3f0 777 RX_STAT_INC(post_delim_crc_err);
8e6f5aa2 778 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1395d3f0
S		 779 RX_STAT_INC(decrypt_busy_err);
780
8e6f5aa2 781 if (rs->rs_status & ATH9K_RXERR_PHY) {
1395d3f0 782 RX_STAT_INC(phy_err);
8e6f5aa2 783 phyerr = rs->rs_phyerr & 0x24;
1395d3f0
S		 784 RX_PHY_ERR_INC(phyerr);
785 }
786
787#undef RX_STAT_INC
788#undef RX_PHY_ERR_INC
789}
790
791static const struct file_operations fops_recv = {
792 .read = read_file_recv,
793 .open = ath9k_debugfs_open,
794 .owner = THIS_MODULE
795};
796
4d6b228d 797int ath9k_init_debug(struct ath_hw *ah)
88b126af 798{
bc974f4a
LR		 799 struct ath_common *common = ath9k_hw_common(ah);
800 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 801
7dd58748
S		 802 if (!ath9k_debugfs_root)
803 return -ENOENT;
804
17d7904d 805 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
19d8bc22 806 ath9k_debugfs_root);
17d7904d 807 if (!sc->debug.debugfs_phy)
c8a72c00 808 return -ENOMEM;
826d2680 809
a830df07 810#ifdef CONFIG_ATH_DEBUG
c8a72c00
FF		 811 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
812 sc->debug.debugfs_phy, sc, &fops_debug))
2493928e 813 goto err;
a830df07 814#endif
2493928e 815
c8a72c00
FF		 816 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
817 sc, &fops_dma))
2a163c6d
S		 818 goto err;
819
c8a72c00
FF		 820 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
821 sc, &fops_interrupt))
817e11de
S		 822 goto err;
823
c8a72c00
FF		 824 if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
825 sc, &fops_rcstat))
7a7dec65
S		 826 goto err;
827
c8a72c00
FF		 828 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
829 sc->debug.debugfs_phy, sc, &fops_wiphy))
39d89cd3
JM		 830 goto err;
831
c8a72c00
FF		 832 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
833 sc, &fops_xmit))
fec247c0
S		 834 goto err;
835
c8a72c00
FF		 836 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
837 sc, &fops_recv))
1395d3f0
S		 838 goto err;
839
15340694
FF		 840 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
841 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
842 goto err;
843
844 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
845 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
846 goto err;
847
826d2680
S		 848 return 0;
849err:
4d6b228d 850 ath9k_exit_debug(ah);
826d2680
S		 851 return -ENOMEM;
852}
853
4d6b228d 854void ath9k_exit_debug(struct ath_hw *ah)
826d2680 855{
bc974f4a
LR		 856 struct ath_common *common = ath9k_hw_common(ah);
857 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 858
c8a72c00 859 debugfs_remove_recursive(sc->debug.debugfs_phy);
19d8bc22
GJ		 860}
861
862int ath9k_debug_create_root(void)
863{
864 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
865 if (!ath9k_debugfs_root)
866 return -ENOENT;
867
868 return 0;
869}
870
871void ath9k_debug_remove_root(void)
872{
873 debugfs_remove(ath9k_debugfs_root);
874 ath9k_debugfs_root = NULL;
88b126af 875}
Linux 6.x block layer and io_uring tree(s)