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x86/amd-iommu: Add per IOMMU reference counting
[linux/fpc-iii.git] / drivers / net / wireless / ath / ath9k / debug.c
blob2be4c22520479bc68f184e6a009adc91ad3d94bc
1 /*
2 * Copyright (c) 2008-2009 Atheros Communications 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 <asm/unaligned.h>
18
19 #include "ath9k.h"
20
21 static unsigned int ath9k_debug = DBG_DEFAULT;
22 module_param_named(debug, ath9k_debug, uint, 0);
23
24 static struct dentry *ath9k_debugfs_root;
25
26 void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
27 {
28 if (!sc)
29 return;
30
31 if (sc->debug.debug_mask & dbg_mask) {
32 va_list args;
33
34 va_start(args, fmt);
35 printk(KERN_DEBUG "ath9k: ");
36 vprintk(fmt, args);
37 va_end(args);
38 }
39 }
40
41 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
42 {
43 file->private_data = inode->i_private;
44 return 0;
45 }
46
47 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
48 size_t count, loff_t *ppos)
49 {
50 struct ath_softc *sc = file->private_data;
51 char buf[32];
52 unsigned int len;
53
54 len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.debug_mask);
55 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
56 }
57
58 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
59 size_t count, loff_t *ppos)
60 {
61 struct ath_softc *sc = file->private_data;
62 unsigned long mask;
63 char buf[32];
64 ssize_t len;
65
66 len = min(count, sizeof(buf) - 1);
67 if (copy_from_user(buf, user_buf, len))
68 return -EINVAL;
69
70 buf[len] = '\0';
71 if (strict_strtoul(buf, 0, &mask))
72 return -EINVAL;
73
74 sc->debug.debug_mask = mask;
75 return count;
76 }
77
78 static const struct file_operations fops_debug = {
79 .read = read_file_debug,
80 .write = write_file_debug,
81 .open = ath9k_debugfs_open,
82 .owner = THIS_MODULE
83 };
84
85 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
86 size_t count, loff_t *ppos)
87 {
88 struct ath_softc *sc = file->private_data;
89 struct ath_hw *ah = sc->sc_ah;
90 char buf[1024];
91 unsigned int len = 0;
92 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
93 int i, qcuOffset = 0, dcuOffset = 0;
94 u32 *qcuBase = &val[0], *dcuBase = &val[4];
95
96 ath9k_ps_wakeup(sc);
97
98 REG_WRITE(ah, AR_MACMISC,
99 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
100 (AR_MACMISC_MISC_OBS_BUS_1 <<
101 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
102
103 len += snprintf(buf + len, sizeof(buf) - len,
104 "Raw DMA Debug values:\n");
105
106 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
107 if (i % 4 == 0)
108 len += snprintf(buf + len, sizeof(buf) - len, "\n");
109
110 val[i] = REG_READ(ah, AR_DMADBG_0 + (i * sizeof(u32)));
111 len += snprintf(buf + len, sizeof(buf) - len, "%d: %08x ",
112 i, val[i]);
113 }
114
115 len += snprintf(buf + len, sizeof(buf) - len, "\n\n");
116 len += snprintf(buf + len, sizeof(buf) - len,
117 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
118
119 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
120 if (i == 8) {
121 qcuOffset = 0;
122 qcuBase++;
123 }
124
125 if (i == 6) {
126 dcuOffset = 0;
127 dcuBase++;
128 }
129
130 len += snprintf(buf + len, sizeof(buf) - len,
131 "%2d %2x %1x %2x %2x\n",
132 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
133 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
134 val[2] & (0x7 << (i * 3)) >> (i * 3),
135 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
136 }
137
138 len += snprintf(buf + len, sizeof(buf) - len, "\n");
139
140 len += snprintf(buf + len, sizeof(buf) - len,
141 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
142 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
143 len += snprintf(buf + len, sizeof(buf) - len,
144 "qcu_complete state: %2x dcu_complete state: %2x\n",
145 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
146 len += snprintf(buf + len, sizeof(buf) - len,
147 "dcu_arb state: %2x dcu_fp state: %2x\n",
148 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
149 len += snprintf(buf + len, sizeof(buf) - len,
150 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
151 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
152 len += snprintf(buf + len, sizeof(buf) - len,
153 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
154 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
155 len += snprintf(buf + len, sizeof(buf) - len,
156 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
157 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
158
159 len += snprintf(buf + len, sizeof(buf) - len, "pcu observe: 0x%x \n",
160 REG_READ(ah, AR_OBS_BUS_1));
161 len += snprintf(buf + len, sizeof(buf) - len,
162 "AR_CR: 0x%x \n", REG_READ(ah, AR_CR));
163
164 ath9k_ps_restore(sc);
165
166 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
167 }
168
169 static const struct file_operations fops_dma = {
170 .read = read_file_dma,
171 .open = ath9k_debugfs_open,
172 .owner = THIS_MODULE
173 };
174
175
176 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
177 {
178 if (status)
179 sc->debug.stats.istats.total++;
180 if (status & ATH9K_INT_RX)
181 sc->debug.stats.istats.rxok++;
182 if (status & ATH9K_INT_RXEOL)
183 sc->debug.stats.istats.rxeol++;
184 if (status & ATH9K_INT_RXORN)
185 sc->debug.stats.istats.rxorn++;
186 if (status & ATH9K_INT_TX)
187 sc->debug.stats.istats.txok++;
188 if (status & ATH9K_INT_TXURN)
189 sc->debug.stats.istats.txurn++;
190 if (status & ATH9K_INT_MIB)
191 sc->debug.stats.istats.mib++;
192 if (status & ATH9K_INT_RXPHY)
193 sc->debug.stats.istats.rxphyerr++;
194 if (status & ATH9K_INT_RXKCM)
195 sc->debug.stats.istats.rx_keycache_miss++;
196 if (status & ATH9K_INT_SWBA)
197 sc->debug.stats.istats.swba++;
198 if (status & ATH9K_INT_BMISS)
199 sc->debug.stats.istats.bmiss++;
200 if (status & ATH9K_INT_BNR)
201 sc->debug.stats.istats.bnr++;
202 if (status & ATH9K_INT_CST)
203 sc->debug.stats.istats.cst++;
204 if (status & ATH9K_INT_GTT)
205 sc->debug.stats.istats.gtt++;
206 if (status & ATH9K_INT_TIM)
207 sc->debug.stats.istats.tim++;
208 if (status & ATH9K_INT_CABEND)
209 sc->debug.stats.istats.cabend++;
210 if (status & ATH9K_INT_DTIMSYNC)
211 sc->debug.stats.istats.dtimsync++;
212 if (status & ATH9K_INT_DTIM)
213 sc->debug.stats.istats.dtim++;
214 }
215
216 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
217 size_t count, loff_t *ppos)
218 {
219 struct ath_softc *sc = file->private_data;
220 char buf[512];
221 unsigned int len = 0;
222
223 len += snprintf(buf + len, sizeof(buf) - len,
224 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
225 len += snprintf(buf + len, sizeof(buf) - len,
226 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
227 len += snprintf(buf + len, sizeof(buf) - len,
228 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
229 len += snprintf(buf + len, sizeof(buf) - len,
230 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
231 len += snprintf(buf + len, sizeof(buf) - len,
232 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
233 len += snprintf(buf + len, sizeof(buf) - len,
234 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
235 len += snprintf(buf + len, sizeof(buf) - len,
236 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
237 len += snprintf(buf + len, sizeof(buf) - len,
238 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
239 len += snprintf(buf + len, sizeof(buf) - len,
240 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
241 len += snprintf(buf + len, sizeof(buf) - len,
242 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
243 len += snprintf(buf + len, sizeof(buf) - len,
244 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
245 len += snprintf(buf + len, sizeof(buf) - len,
246 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
247 len += snprintf(buf + len, sizeof(buf) - len,
248 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
249 len += snprintf(buf + len, sizeof(buf) - len,
250 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
251 len += snprintf(buf + len, sizeof(buf) - len,
252 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
253 len += snprintf(buf + len, sizeof(buf) - len,
254 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
255 len += snprintf(buf + len, sizeof(buf) - len,
256 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
257 len += snprintf(buf + len, sizeof(buf) - len,
258 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
259
260 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
261 }
262
263 static const struct file_operations fops_interrupt = {
264 .read = read_file_interrupt,
265 .open = ath9k_debugfs_open,
266 .owner = THIS_MODULE
267 };
268
269 void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb)
270 {
271 struct ath_tx_info_priv *tx_info_priv = NULL;
272 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
273 struct ieee80211_tx_rate *rates = tx_info->status.rates;
274 int final_ts_idx, idx;
275 struct ath_rc_stats *stats;
276
277 tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
278 final_ts_idx = tx_info_priv->tx.ts_rateindex;
279 idx = rates[final_ts_idx].idx;
280 stats = &sc->debug.stats.rcstats[idx];
281 stats->success++;
282 }
283
284 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
285 int xretries, int retries, u8 per)
286 {
287 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
288
289 stats->xretries += xretries;
290 stats->retries += retries;
291 stats->per = per;
292 }
293
294 static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
295 size_t count, loff_t *ppos)
296 {
297 struct ath_softc *sc = file->private_data;
298 char *buf;
299 unsigned int len = 0, max;
300 int i = 0;
301 ssize_t retval;
302
303 if (sc->cur_rate_table == NULL)
304 return 0;
305
306 max = 80 + sc->cur_rate_table->rate_cnt * 64;
307 buf = kmalloc(max + 1, GFP_KERNEL);
308 if (buf == NULL)
309 return 0;
310 buf[max] = 0;
311
312 len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success",
313 "Retries", "XRetries", "PER");
314
315 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
316 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
317 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
318
319 len += snprintf(buf + len, max - len,
320 "%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000,
321 (ratekbps % 1000) / 100, stats->success,
322 stats->retries, stats->xretries,
323 stats->per);
324 }
325
326 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
327 kfree(buf);
328 return retval;
329 }
330
331 static const struct file_operations fops_rcstat = {
332 .read = read_file_rcstat,
333 .open = ath9k_debugfs_open,
334 .owner = THIS_MODULE
335 };
336
337 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
338 {
339 switch (state) {
340 case ATH_WIPHY_INACTIVE:
341 return "INACTIVE";
342 case ATH_WIPHY_ACTIVE:
343 return "ACTIVE";
344 case ATH_WIPHY_PAUSING:
345 return "PAUSING";
346 case ATH_WIPHY_PAUSED:
347 return "PAUSED";
348 case ATH_WIPHY_SCAN:
349 return "SCAN";
350 }
351 return "?";
352 }
353
354 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
355 size_t count, loff_t *ppos)
356 {
357 struct ath_softc *sc = file->private_data;
358 char buf[512];
359 unsigned int len = 0;
360 int i;
361 u8 addr[ETH_ALEN];
362
363 len += snprintf(buf + len, sizeof(buf) - len,
364 "primary: %s (%s chan=%d ht=%d)\n",
365 wiphy_name(sc->pri_wiphy->hw->wiphy),
366 ath_wiphy_state_str(sc->pri_wiphy->state),
367 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
368 for (i = 0; i < sc->num_sec_wiphy; i++) {
369 struct ath_wiphy *aphy = sc->sec_wiphy[i];
370 if (aphy == NULL)
371 continue;
372 len += snprintf(buf + len, sizeof(buf) - len,
373 "secondary: %s (%s chan=%d ht=%d)\n",
374 wiphy_name(aphy->hw->wiphy),
375 ath_wiphy_state_str(aphy->state),
376 aphy->chan_idx, aphy->chan_is_ht);
377 }
378
379 put_unaligned_le32(REG_READ(sc->sc_ah, AR_STA_ID0), addr);
380 put_unaligned_le16(REG_READ(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
381 len += snprintf(buf + len, sizeof(buf) - len,
382 "addr: %pM\n", addr);
383 put_unaligned_le32(REG_READ(sc->sc_ah, AR_BSSMSKL), addr);
384 put_unaligned_le16(REG_READ(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
385 len += snprintf(buf + len, sizeof(buf) - len,
386 "addrmask: %pM\n", addr);
387
388 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
389 }
390
391 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
392 {
393 int i;
394 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
395 return sc->pri_wiphy;
396 for (i = 0; i < sc->num_sec_wiphy; i++) {
397 struct ath_wiphy *aphy = sc->sec_wiphy[i];
398 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
399 return aphy;
400 }
401 return NULL;
402 }
403
404 static int del_wiphy(struct ath_softc *sc, const char *name)
405 {
406 struct ath_wiphy *aphy = get_wiphy(sc, name);
407 if (!aphy)
408 return -ENOENT;
409 return ath9k_wiphy_del(aphy);
410 }
411
412 static int pause_wiphy(struct ath_softc *sc, const char *name)
413 {
414 struct ath_wiphy *aphy = get_wiphy(sc, name);
415 if (!aphy)
416 return -ENOENT;
417 return ath9k_wiphy_pause(aphy);
418 }
419
420 static int unpause_wiphy(struct ath_softc *sc, const char *name)
421 {
422 struct ath_wiphy *aphy = get_wiphy(sc, name);
423 if (!aphy)
424 return -ENOENT;
425 return ath9k_wiphy_unpause(aphy);
426 }
427
428 static int select_wiphy(struct ath_softc *sc, const char *name)
429 {
430 struct ath_wiphy *aphy = get_wiphy(sc, name);
431 if (!aphy)
432 return -ENOENT;
433 return ath9k_wiphy_select(aphy);
434 }
435
436 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
437 {
438 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
439 return 0;
440 }
441
442 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
443 size_t count, loff_t *ppos)
444 {
445 struct ath_softc *sc = file->private_data;
446 char buf[50];
447 size_t len;
448
449 len = min(count, sizeof(buf) - 1);
450 if (copy_from_user(buf, user_buf, len))
451 return -EFAULT;
452 buf[len] = '\0';
453 if (len > 0 && buf[len - 1] == '\n')
454 buf[len - 1] = '\0';
455
456 if (strncmp(buf, "add", 3) == 0) {
457 int res = ath9k_wiphy_add(sc);
458 if (res < 0)
459 return res;
460 } else if (strncmp(buf, "del=", 4) == 0) {
461 int res = del_wiphy(sc, buf + 4);
462 if (res < 0)
463 return res;
464 } else if (strncmp(buf, "pause=", 6) == 0) {
465 int res = pause_wiphy(sc, buf + 6);
466 if (res < 0)
467 return res;
468 } else if (strncmp(buf, "unpause=", 8) == 0) {
469 int res = unpause_wiphy(sc, buf + 8);
470 if (res < 0)
471 return res;
472 } else if (strncmp(buf, "select=", 7) == 0) {
473 int res = select_wiphy(sc, buf + 7);
474 if (res < 0)
475 return res;
476 } else if (strncmp(buf, "schedule=", 9) == 0) {
477 int res = schedule_wiphy(sc, buf + 9);
478 if (res < 0)
479 return res;
480 } else
481 return -EOPNOTSUPP;
482
483 return count;
484 }
485
486 static const struct file_operations fops_wiphy = {
487 .read = read_file_wiphy,
488 .write = write_file_wiphy,
489 .open = ath9k_debugfs_open,
490 .owner = THIS_MODULE
491 };
492
493 #define PR(str, elem) \
494 do { \
495 len += snprintf(buf + len, size - len, \
496 "%s%13u%11u%10u%10u\n", str, \
497 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
498 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
499 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
500 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
501 } while(0)
502
503 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
504 size_t count, loff_t *ppos)
505 {
506 struct ath_softc *sc = file->private_data;
507 char *buf;
508 unsigned int len = 0, size = 2048;
509 ssize_t retval = 0;
510
511 buf = kzalloc(size, GFP_KERNEL);
512 if (buf == NULL)
513 return 0;
514
515 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
516
517 PR("MPDUs Queued: ", queued);
518 PR("MPDUs Completed: ", completed);
519 PR("Aggregates: ", a_aggr);
520 PR("AMPDUs Queued: ", a_queued);
521 PR("AMPDUs Completed:", a_completed);
522 PR("AMPDUs Retried: ", a_retries);
523 PR("AMPDUs XRetried: ", a_xretries);
524 PR("FIFO Underrun: ", fifo_underrun);
525 PR("TXOP Exceeded: ", xtxop);
526 PR("TXTIMER Expiry: ", timer_exp);
527 PR("DESC CFG Error: ", desc_cfg_err);
528 PR("DATA Underrun: ", data_underrun);
529 PR("DELIM Underrun: ", delim_underrun);
530
531 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
532 kfree(buf);
533
534 return retval;
535 }
536
537 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
538 struct ath_buf *bf)
539 {
540 struct ath_desc *ds = bf->bf_desc;
541
542 if (bf_isampdu(bf)) {
543 if (bf_isxretried(bf))
544 TX_STAT_INC(txq->axq_qnum, a_xretries);
545 else
546 TX_STAT_INC(txq->axq_qnum, a_completed);
547 } else {
548 TX_STAT_INC(txq->axq_qnum, completed);
549 }
550
551 if (ds->ds_txstat.ts_status & ATH9K_TXERR_FIFO)
552 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
553 if (ds->ds_txstat.ts_status & ATH9K_TXERR_XTXOP)
554 TX_STAT_INC(txq->axq_qnum, xtxop);
555 if (ds->ds_txstat.ts_status & ATH9K_TXERR_TIMER_EXPIRED)
556 TX_STAT_INC(txq->axq_qnum, timer_exp);
557 if (ds->ds_txstat.ts_flags & ATH9K_TX_DESC_CFG_ERR)
558 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
559 if (ds->ds_txstat.ts_flags & ATH9K_TX_DATA_UNDERRUN)
560 TX_STAT_INC(txq->axq_qnum, data_underrun);
561 if (ds->ds_txstat.ts_flags & ATH9K_TX_DELIM_UNDERRUN)
562 TX_STAT_INC(txq->axq_qnum, delim_underrun);
563 }
564
565 static const struct file_operations fops_xmit = {
566 .read = read_file_xmit,
567 .open = ath9k_debugfs_open,
568 .owner = THIS_MODULE
569 };
570
571 int ath9k_init_debug(struct ath_softc *sc)
572 {
573 sc->debug.debug_mask = ath9k_debug;
574
575 if (!ath9k_debugfs_root)
576 return -ENOENT;
577
578 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
579 ath9k_debugfs_root);
580 if (!sc->debug.debugfs_phy)
581 goto err;
582
583 sc->debug.debugfs_debug = debugfs_create_file("debug",
584 S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug);
585 if (!sc->debug.debugfs_debug)
586 goto err;
587
588 sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUSR,
589 sc->debug.debugfs_phy, sc, &fops_dma);
590 if (!sc->debug.debugfs_dma)
591 goto err;
592
593 sc->debug.debugfs_interrupt = debugfs_create_file("interrupt",
594 S_IRUSR,
595 sc->debug.debugfs_phy,
596 sc, &fops_interrupt);
597 if (!sc->debug.debugfs_interrupt)
598 goto err;
599
600 sc->debug.debugfs_rcstat = debugfs_create_file("rcstat",
601 S_IRUSR,
602 sc->debug.debugfs_phy,
603 sc, &fops_rcstat);
604 if (!sc->debug.debugfs_rcstat)
605 goto err;
606
607 sc->debug.debugfs_wiphy = debugfs_create_file(
608 "wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc,
609 &fops_wiphy);
610 if (!sc->debug.debugfs_wiphy)
611 goto err;
612
613 sc->debug.debugfs_xmit = debugfs_create_file("xmit",
614 S_IRUSR,
615 sc->debug.debugfs_phy,
616 sc, &fops_xmit);
617 if (!sc->debug.debugfs_xmit)
618 goto err;
619
620 return 0;
621 err:
622 ath9k_exit_debug(sc);
623 return -ENOMEM;
624 }
625
626 void ath9k_exit_debug(struct ath_softc *sc)
627 {
628 debugfs_remove(sc->debug.debugfs_xmit);
629 debugfs_remove(sc->debug.debugfs_wiphy);
630 debugfs_remove(sc->debug.debugfs_rcstat);
631 debugfs_remove(sc->debug.debugfs_interrupt);
632 debugfs_remove(sc->debug.debugfs_dma);
633 debugfs_remove(sc->debug.debugfs_debug);
634 debugfs_remove(sc->debug.debugfs_phy);
635 }
636
637 int ath9k_debug_create_root(void)
638 {
639 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
640 if (!ath9k_debugfs_root)
641 return -ENOENT;
642
643 return 0;
644 }
645
646 void ath9k_debug_remove_root(void)
647 {
648 debugfs_remove(ath9k_debugfs_root);
649 ath9k_debugfs_root = NULL;
650 }
Linux with added FPC-III support