xref: /freebsd/sys/dev/ath/if_ath_sysctl.c (revision bb15ca603fa442c72dde3f3cb8b46db6970e3950)
1 /*-
2  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification.
11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13  *    redistribution must be conditioned upon including a substantially
14  *    similar Disclaimer requirement for further binary redistribution.
15  *
16  * NO WARRANTY
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27  * THE POSSIBILITY OF SUCH DAMAGES.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 /*
34  * Driver for the Atheros Wireless LAN controller.
35  *
36  * This software is derived from work of Atsushi Onoe; his contribution
37  * is greatly appreciated.
38  */
39 
40 #include "opt_inet.h"
41 #include "opt_ath.h"
42 #include "opt_wlan.h"
43 
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/sysctl.h>
47 #include <sys/mbuf.h>
48 #include <sys/malloc.h>
49 #include <sys/lock.h>
50 #include <sys/mutex.h>
51 #include <sys/kernel.h>
52 #include <sys/socket.h>
53 #include <sys/sockio.h>
54 #include <sys/errno.h>
55 #include <sys/callout.h>
56 #include <sys/bus.h>
57 #include <sys/endian.h>
58 #include <sys/kthread.h>
59 #include <sys/taskqueue.h>
60 #include <sys/priv.h>
61 
62 #include <machine/bus.h>
63 
64 #include <net/if.h>
65 #include <net/if_dl.h>
66 #include <net/if_media.h>
67 #include <net/if_types.h>
68 #include <net/if_arp.h>
69 #include <net/ethernet.h>
70 #include <net/if_llc.h>
71 
72 #include <net80211/ieee80211_var.h>
73 #include <net80211/ieee80211_regdomain.h>
74 #ifdef IEEE80211_SUPPORT_SUPERG
75 #include <net80211/ieee80211_superg.h>
76 #endif
77 #ifdef IEEE80211_SUPPORT_TDMA
78 #include <net80211/ieee80211_tdma.h>
79 #endif
80 
81 #include <net/bpf.h>
82 
83 #ifdef INET
84 #include <netinet/in.h>
85 #include <netinet/if_ether.h>
86 #endif
87 
88 #include <dev/ath/if_athvar.h>
89 #include <dev/ath/ath_hal/ah_devid.h>		/* XXX for softled */
90 #include <dev/ath/ath_hal/ah_diagcodes.h>
91 
92 #include <dev/ath/if_ath_debug.h>
93 #include <dev/ath/if_ath_misc.h>
94 #include <dev/ath/if_ath_tx.h>
95 #include <dev/ath/if_ath_sysctl.h>
96 
97 #ifdef ATH_TX99_DIAG
98 #include <dev/ath/ath_tx99/ath_tx99.h>
99 #endif
100 
101 static int
102 ath_sysctl_slottime(SYSCTL_HANDLER_ARGS)
103 {
104 	struct ath_softc *sc = arg1;
105 	u_int slottime = ath_hal_getslottime(sc->sc_ah);
106 	int error;
107 
108 	error = sysctl_handle_int(oidp, &slottime, 0, req);
109 	if (error || !req->newptr)
110 		return error;
111 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
112 }
113 
114 static int
115 ath_sysctl_acktimeout(SYSCTL_HANDLER_ARGS)
116 {
117 	struct ath_softc *sc = arg1;
118 	u_int acktimeout = ath_hal_getacktimeout(sc->sc_ah);
119 	int error;
120 
121 	error = sysctl_handle_int(oidp, &acktimeout, 0, req);
122 	if (error || !req->newptr)
123 		return error;
124 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
125 }
126 
127 static int
128 ath_sysctl_ctstimeout(SYSCTL_HANDLER_ARGS)
129 {
130 	struct ath_softc *sc = arg1;
131 	u_int ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
132 	int error;
133 
134 	error = sysctl_handle_int(oidp, &ctstimeout, 0, req);
135 	if (error || !req->newptr)
136 		return error;
137 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
138 }
139 
140 static int
141 ath_sysctl_softled(SYSCTL_HANDLER_ARGS)
142 {
143 	struct ath_softc *sc = arg1;
144 	int softled = sc->sc_softled;
145 	int error;
146 
147 	error = sysctl_handle_int(oidp, &softled, 0, req);
148 	if (error || !req->newptr)
149 		return error;
150 	softled = (softled != 0);
151 	if (softled != sc->sc_softled) {
152 		if (softled) {
153 			/* NB: handle any sc_ledpin change */
154 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
155 			    HAL_GPIO_MUX_MAC_NETWORK_LED);
156 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
157 				!sc->sc_ledon);
158 		}
159 		sc->sc_softled = softled;
160 	}
161 	return 0;
162 }
163 
164 static int
165 ath_sysctl_ledpin(SYSCTL_HANDLER_ARGS)
166 {
167 	struct ath_softc *sc = arg1;
168 	int ledpin = sc->sc_ledpin;
169 	int error;
170 
171 	error = sysctl_handle_int(oidp, &ledpin, 0, req);
172 	if (error || !req->newptr)
173 		return error;
174 	if (ledpin != sc->sc_ledpin) {
175 		sc->sc_ledpin = ledpin;
176 		if (sc->sc_softled) {
177 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
178 			    HAL_GPIO_MUX_MAC_NETWORK_LED);
179 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
180 				!sc->sc_ledon);
181 		}
182 	}
183 	return 0;
184 }
185 
186 static int
187 ath_sysctl_txantenna(SYSCTL_HANDLER_ARGS)
188 {
189 	struct ath_softc *sc = arg1;
190 	u_int txantenna = ath_hal_getantennaswitch(sc->sc_ah);
191 	int error;
192 
193 	error = sysctl_handle_int(oidp, &txantenna, 0, req);
194 	if (!error && req->newptr) {
195 		/* XXX assumes 2 antenna ports */
196 		if (txantenna < HAL_ANT_VARIABLE || txantenna > HAL_ANT_FIXED_B)
197 			return EINVAL;
198 		ath_hal_setantennaswitch(sc->sc_ah, txantenna);
199 		/*
200 		 * NB: with the switch locked this isn't meaningful,
201 		 *     but set it anyway so things like radiotap get
202 		 *     consistent info in their data.
203 		 */
204 		sc->sc_txantenna = txantenna;
205 	}
206 	return error;
207 }
208 
209 static int
210 ath_sysctl_rxantenna(SYSCTL_HANDLER_ARGS)
211 {
212 	struct ath_softc *sc = arg1;
213 	u_int defantenna = ath_hal_getdefantenna(sc->sc_ah);
214 	int error;
215 
216 	error = sysctl_handle_int(oidp, &defantenna, 0, req);
217 	if (!error && req->newptr)
218 		ath_hal_setdefantenna(sc->sc_ah, defantenna);
219 	return error;
220 }
221 
222 static int
223 ath_sysctl_diversity(SYSCTL_HANDLER_ARGS)
224 {
225 	struct ath_softc *sc = arg1;
226 	u_int diversity = ath_hal_getdiversity(sc->sc_ah);
227 	int error;
228 
229 	error = sysctl_handle_int(oidp, &diversity, 0, req);
230 	if (error || !req->newptr)
231 		return error;
232 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
233 		return EINVAL;
234 	sc->sc_diversity = diversity;
235 	return 0;
236 }
237 
238 static int
239 ath_sysctl_diag(SYSCTL_HANDLER_ARGS)
240 {
241 	struct ath_softc *sc = arg1;
242 	u_int32_t diag;
243 	int error;
244 
245 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
246 		return EINVAL;
247 	error = sysctl_handle_int(oidp, &diag, 0, req);
248 	if (error || !req->newptr)
249 		return error;
250 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
251 }
252 
253 static int
254 ath_sysctl_tpscale(SYSCTL_HANDLER_ARGS)
255 {
256 	struct ath_softc *sc = arg1;
257 	struct ifnet *ifp = sc->sc_ifp;
258 	u_int32_t scale;
259 	int error;
260 
261 	(void) ath_hal_gettpscale(sc->sc_ah, &scale);
262 	error = sysctl_handle_int(oidp, &scale, 0, req);
263 	if (error || !req->newptr)
264 		return error;
265 	return !ath_hal_settpscale(sc->sc_ah, scale) ? EINVAL :
266 	    (ifp->if_drv_flags & IFF_DRV_RUNNING) ?
267 	      ath_reset(ifp, ATH_RESET_NOLOSS) : 0;
268 }
269 
270 static int
271 ath_sysctl_tpc(SYSCTL_HANDLER_ARGS)
272 {
273 	struct ath_softc *sc = arg1;
274 	u_int tpc = ath_hal_gettpc(sc->sc_ah);
275 	int error;
276 
277 	error = sysctl_handle_int(oidp, &tpc, 0, req);
278 	if (error || !req->newptr)
279 		return error;
280 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
281 }
282 
283 static int
284 ath_sysctl_rfkill(SYSCTL_HANDLER_ARGS)
285 {
286 	struct ath_softc *sc = arg1;
287 	struct ifnet *ifp = sc->sc_ifp;
288 	struct ath_hal *ah = sc->sc_ah;
289 	u_int rfkill = ath_hal_getrfkill(ah);
290 	int error;
291 
292 	error = sysctl_handle_int(oidp, &rfkill, 0, req);
293 	if (error || !req->newptr)
294 		return error;
295 	if (rfkill == ath_hal_getrfkill(ah))	/* unchanged */
296 		return 0;
297 	if (!ath_hal_setrfkill(ah, rfkill))
298 		return EINVAL;
299 	return (ifp->if_drv_flags & IFF_DRV_RUNNING) ?
300 	    ath_reset(ifp, ATH_RESET_FULL) : 0;
301 }
302 
303 static int
304 ath_sysctl_txagg(SYSCTL_HANDLER_ARGS)
305 {
306 	struct ath_softc *sc = arg1;
307 	int i, t, param = 0;
308 	int error;
309 	struct ath_buf *bf;
310 
311 	error = sysctl_handle_int(oidp, &param, 0, req);
312 	if (error || !req->newptr)
313 		return error;
314 
315 	if (param != 1)
316 		return 0;
317 
318 	printf("no tx bufs (empty list): %d\n", sc->sc_stats.ast_tx_getnobuf);
319 	printf("no tx bufs (was busy): %d\n", sc->sc_stats.ast_tx_getbusybuf);
320 
321 	printf("aggr single packet: %d\n",
322 	    sc->sc_aggr_stats.aggr_single_pkt);
323 	printf("aggr single packet w/ BAW closed: %d\n",
324 	    sc->sc_aggr_stats.aggr_baw_closed_single_pkt);
325 	printf("aggr non-baw packet: %d\n",
326 	    sc->sc_aggr_stats.aggr_nonbaw_pkt);
327 	printf("aggr aggregate packet: %d\n",
328 	    sc->sc_aggr_stats.aggr_aggr_pkt);
329 	printf("aggr single packet low hwq: %d\n",
330 	    sc->sc_aggr_stats.aggr_low_hwq_single_pkt);
331 	printf("aggr sched, no work: %d\n",
332 	    sc->sc_aggr_stats.aggr_sched_nopkt);
333 	for (i = 0; i < 64; i++) {
334 		printf("%2d: %10d ", i, sc->sc_aggr_stats.aggr_pkts[i]);
335 		if (i % 4 == 3)
336 			printf("\n");
337 	}
338 	printf("\n");
339 
340 	for (i = 0; i < HAL_NUM_TX_QUEUES; i++) {
341 		if (ATH_TXQ_SETUP(sc, i)) {
342 			printf("HW TXQ %d: axq_depth=%d, axq_aggr_depth=%d\n",
343 			    i,
344 			    sc->sc_txq[i].axq_depth,
345 			    sc->sc_txq[i].axq_aggr_depth);
346 		}
347 	}
348 
349 	i = t = 0;
350 	ATH_TXBUF_LOCK(sc);
351 	TAILQ_FOREACH(bf, &sc->sc_txbuf, bf_list) {
352 		if (bf->bf_flags & ATH_BUF_BUSY) {
353 			printf("Busy: %d\n", t);
354 			i++;
355 		}
356 		t++;
357 	}
358 	ATH_TXBUF_UNLOCK(sc);
359 	printf("Total TX buffers: %d; Total TX buffers busy: %d\n",
360 	    t, i);
361 
362 	return 0;
363 }
364 
365 static int
366 ath_sysctl_rfsilent(SYSCTL_HANDLER_ARGS)
367 {
368 	struct ath_softc *sc = arg1;
369 	u_int rfsilent;
370 	int error;
371 
372 	(void) ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
373 	error = sysctl_handle_int(oidp, &rfsilent, 0, req);
374 	if (error || !req->newptr)
375 		return error;
376 	if (!ath_hal_setrfsilent(sc->sc_ah, rfsilent))
377 		return EINVAL;
378 	sc->sc_rfsilentpin = rfsilent & 0x1c;
379 	sc->sc_rfsilentpol = (rfsilent & 0x2) != 0;
380 	return 0;
381 }
382 
383 static int
384 ath_sysctl_tpack(SYSCTL_HANDLER_ARGS)
385 {
386 	struct ath_softc *sc = arg1;
387 	u_int32_t tpack;
388 	int error;
389 
390 	(void) ath_hal_gettpack(sc->sc_ah, &tpack);
391 	error = sysctl_handle_int(oidp, &tpack, 0, req);
392 	if (error || !req->newptr)
393 		return error;
394 	return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
395 }
396 
397 static int
398 ath_sysctl_tpcts(SYSCTL_HANDLER_ARGS)
399 {
400 	struct ath_softc *sc = arg1;
401 	u_int32_t tpcts;
402 	int error;
403 
404 	(void) ath_hal_gettpcts(sc->sc_ah, &tpcts);
405 	error = sysctl_handle_int(oidp, &tpcts, 0, req);
406 	if (error || !req->newptr)
407 		return error;
408 	return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
409 }
410 
411 static int
412 ath_sysctl_intmit(SYSCTL_HANDLER_ARGS)
413 {
414 	struct ath_softc *sc = arg1;
415 	int intmit, error;
416 
417 	intmit = ath_hal_getintmit(sc->sc_ah);
418 	error = sysctl_handle_int(oidp, &intmit, 0, req);
419 	if (error || !req->newptr)
420 		return error;
421 
422 	/* reusing error; 1 here means "good"; 0 means "fail" */
423 	error = ath_hal_setintmit(sc->sc_ah, intmit);
424 	if (! error)
425 		return EINVAL;
426 
427 	/*
428 	 * Reset the hardware here - disabling ANI in the HAL
429 	 * doesn't reset ANI related registers, so it'll leave
430 	 * things in an inconsistent state.
431 	 */
432 	if (sc->sc_ifp->if_drv_flags & IFF_DRV_RUNNING)
433 		ath_reset(sc->sc_ifp, ATH_RESET_NOLOSS);
434 
435 	return 0;
436 }
437 
438 #ifdef IEEE80211_SUPPORT_TDMA
439 static int
440 ath_sysctl_setcca(SYSCTL_HANDLER_ARGS)
441 {
442 	struct ath_softc *sc = arg1;
443 	int setcca, error;
444 
445 	setcca = sc->sc_setcca;
446 	error = sysctl_handle_int(oidp, &setcca, 0, req);
447 	if (error || !req->newptr)
448 		return error;
449 	sc->sc_setcca = (setcca != 0);
450 	return 0;
451 }
452 #endif /* IEEE80211_SUPPORT_TDMA */
453 
454 static int
455 ath_sysctl_forcebstuck(SYSCTL_HANDLER_ARGS)
456 {
457 	struct ath_softc *sc = arg1;
458 	int val = 0;
459 	int error;
460 
461 	error = sysctl_handle_int(oidp, &val, 0, req);
462 	if (error || !req->newptr)
463 		return error;
464 	if (val == 0)
465 		return 0;
466 
467 	taskqueue_enqueue_fast(sc->sc_tq, &sc->sc_bstucktask);
468 	val = 0;
469 	return 0;
470 }
471 
472 void
473 ath_sysctlattach(struct ath_softc *sc)
474 {
475 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
476 	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
477 	struct ath_hal *ah = sc->sc_ah;
478 
479 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
480 		"countrycode", CTLFLAG_RD, &sc->sc_eecc, 0,
481 		"EEPROM country code");
482 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
483 		"regdomain", CTLFLAG_RD, &sc->sc_eerd, 0,
484 		"EEPROM regdomain code");
485 #ifdef	ATH_DEBUG
486 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
487 		"debug", CTLFLAG_RW, &sc->sc_debug, 0,
488 		"control debugging printfs");
489 #endif
490 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
491 		"slottime", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
492 		ath_sysctl_slottime, "I", "802.11 slot time (us)");
493 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
494 		"acktimeout", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
495 		ath_sysctl_acktimeout, "I", "802.11 ACK timeout (us)");
496 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
497 		"ctstimeout", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
498 		ath_sysctl_ctstimeout, "I", "802.11 CTS timeout (us)");
499 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
500 		"softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
501 		ath_sysctl_softled, "I", "enable/disable software LED support");
502 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
503 		"ledpin", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
504 		ath_sysctl_ledpin, "I", "GPIO pin connected to LED");
505 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
506 		"ledon", CTLFLAG_RW, &sc->sc_ledon, 0,
507 		"setting to turn LED on");
508 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
509 		"ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
510 		"idle time for inactivity LED (ticks)");
511 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
512 		"txantenna", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
513 		ath_sysctl_txantenna, "I", "antenna switch");
514 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
515 		"rxantenna", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
516 		ath_sysctl_rxantenna, "I", "default/rx antenna");
517 	if (ath_hal_hasdiversity(ah))
518 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
519 			"diversity", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
520 			ath_sysctl_diversity, "I", "antenna diversity");
521 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
522 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
523 		"txintrperiod", CTLFLAG_RW, &sc->sc_txintrperiod, 0,
524 		"tx descriptor batching");
525 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
526 		"diag", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
527 		ath_sysctl_diag, "I", "h/w diagnostic control");
528 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
529 		"tpscale", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
530 		ath_sysctl_tpscale, "I", "tx power scaling");
531 	if (ath_hal_hastpc(ah)) {
532 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
533 			"tpc", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
534 			ath_sysctl_tpc, "I", "enable/disable per-packet TPC");
535 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
536 			"tpack", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
537 			ath_sysctl_tpack, "I", "tx power for ack frames");
538 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
539 			"tpcts", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
540 			ath_sysctl_tpcts, "I", "tx power for cts frames");
541 	}
542 	if (ath_hal_hasrfsilent(ah)) {
543 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
544 			"rfsilent", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
545 			ath_sysctl_rfsilent, "I", "h/w RF silent config");
546 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
547 			"rfkill", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
548 			ath_sysctl_rfkill, "I", "enable/disable RF kill switch");
549 	}
550 
551 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
552 		"txagg", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
553 		ath_sysctl_txagg, "I", "");
554 
555 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
556 		"forcebstuck", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
557 		ath_sysctl_forcebstuck, "I", "");
558 
559 	if (ath_hal_hasintmit(ah)) {
560 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
561 			"intmit", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
562 			ath_sysctl_intmit, "I", "interference mitigation");
563 	}
564 	sc->sc_monpass = HAL_RXERR_DECRYPT | HAL_RXERR_MIC;
565 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
566 		"monpass", CTLFLAG_RW, &sc->sc_monpass, 0,
567 		"mask of error frames to pass when monitoring");
568 
569 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
570 		"hwq_limit", CTLFLAG_RW, &sc->sc_hwq_limit, 0,
571 		"");
572 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
573 		"tid_hwq_lo", CTLFLAG_RW, &sc->sc_tid_hwq_lo, 0,
574 		"");
575 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
576 		"tid_hwq_hi", CTLFLAG_RW, &sc->sc_tid_hwq_hi, 0,
577 		"");
578 
579 #ifdef IEEE80211_SUPPORT_TDMA
580 	if (ath_hal_macversion(ah) > 0x78) {
581 		sc->sc_tdmadbaprep = 2;
582 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
583 			"dbaprep", CTLFLAG_RW, &sc->sc_tdmadbaprep, 0,
584 			"TDMA DBA preparation time");
585 		sc->sc_tdmaswbaprep = 10;
586 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
587 			"swbaprep", CTLFLAG_RW, &sc->sc_tdmaswbaprep, 0,
588 			"TDMA SWBA preparation time");
589 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
590 			"guardtime", CTLFLAG_RW, &sc->sc_tdmaguard, 0,
591 			"TDMA slot guard time");
592 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
593 			"superframe", CTLFLAG_RD, &sc->sc_tdmabintval, 0,
594 			"TDMA calculated super frame");
595 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
596 			"setcca", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
597 			ath_sysctl_setcca, "I", "enable CCA control");
598 	}
599 #endif
600 }
601 
602 static int
603 ath_sysctl_clearstats(SYSCTL_HANDLER_ARGS)
604 {
605 	struct ath_softc *sc = arg1;
606 	int val = 0;
607 	int error;
608 
609 	error = sysctl_handle_int(oidp, &val, 0, req);
610 	if (error || !req->newptr)
611 		return error;
612 	if (val == 0)
613 		return 0;       /* Not clearing the stats is still valid */
614 	memset(&sc->sc_stats, 0, sizeof(sc->sc_stats));
615 	memset(&sc->sc_aggr_stats, 0, sizeof(sc->sc_aggr_stats));
616 
617 	val = 0;
618 	return 0;
619 }
620 
621 static void
622 ath_sysctl_stats_attach_rxphyerr(struct ath_softc *sc, struct sysctl_oid_list *parent)
623 {
624 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
625 	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
626 	struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
627 	int i;
628 	char sn[8];
629 
630 	tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx_phy_err", CTLFLAG_RD, NULL, "Per-code RX PHY Errors");
631 	child = SYSCTL_CHILDREN(tree);
632 	for (i = 0; i < 64; i++) {
633 		snprintf(sn, sizeof(sn), "%d", i);
634 		SYSCTL_ADD_UINT(ctx, child, OID_AUTO, sn, CTLFLAG_RD, &sc->sc_stats.ast_rx_phy[i], 0, "");
635 	}
636 }
637 
638 void
639 ath_sysctl_stats_attach(struct ath_softc *sc)
640 {
641 	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
642 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
643 	struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
644 
645 	/* Create "clear" node */
646 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
647 	    "clear_stats", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
648 	    ath_sysctl_clearstats, "I", "clear stats");
649 
650 	/* Create stats node */
651 	tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
652 	    NULL, "Statistics");
653 	child = SYSCTL_CHILDREN(tree);
654 
655 	/* This was generated from if_athioctl.h */
656 
657 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_watchdog", CTLFLAG_RD,
658 	    &sc->sc_stats.ast_watchdog, 0, "device reset by watchdog");
659 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_hardware", CTLFLAG_RD,
660 	    &sc->sc_stats.ast_hardware, 0, "fatal hardware error interrupts");
661 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_bmiss", CTLFLAG_RD,
662 	    &sc->sc_stats.ast_bmiss, 0, "beacon miss interrupts");
663 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_bmiss_phantom", CTLFLAG_RD,
664 	    &sc->sc_stats.ast_bmiss_phantom, 0, "beacon miss interrupts");
665 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_bstuck", CTLFLAG_RD,
666 	    &sc->sc_stats.ast_bstuck, 0, "beacon stuck interrupts");
667 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rxorn", CTLFLAG_RD,
668 	    &sc->sc_stats.ast_rxorn, 0, "rx overrun interrupts");
669 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rxeol", CTLFLAG_RD,
670 	    &sc->sc_stats.ast_rxeol, 0, "rx eol interrupts");
671 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_txurn", CTLFLAG_RD,
672 	    &sc->sc_stats.ast_txurn, 0, "tx underrun interrupts");
673 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_mib", CTLFLAG_RD,
674 	    &sc->sc_stats.ast_mib, 0, "mib interrupts");
675 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_intrcoal", CTLFLAG_RD,
676 	    &sc->sc_stats.ast_intrcoal, 0, "interrupts coalesced");
677 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_packets", CTLFLAG_RD,
678 	    &sc->sc_stats.ast_tx_packets, 0, "packet sent on the interface");
679 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_mgmt", CTLFLAG_RD,
680 	    &sc->sc_stats.ast_tx_mgmt, 0, "management frames transmitted");
681 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_discard", CTLFLAG_RD,
682 	    &sc->sc_stats.ast_tx_discard, 0, "frames discarded prior to assoc");
683 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_qstop", CTLFLAG_RD,
684 	    &sc->sc_stats.ast_tx_qstop, 0, "output stopped 'cuz no buffer");
685 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_encap", CTLFLAG_RD,
686 	    &sc->sc_stats.ast_tx_encap, 0, "tx encapsulation failed");
687 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nonode", CTLFLAG_RD,
688 	    &sc->sc_stats.ast_tx_nonode, 0, "tx failed 'cuz no node");
689 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nombuf", CTLFLAG_RD,
690 	    &sc->sc_stats.ast_tx_nombuf, 0, "tx failed 'cuz no mbuf");
691 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nomcl", CTLFLAG_RD,
692 	    &sc->sc_stats.ast_tx_nomcl, 0, "tx failed 'cuz no cluster");
693 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_linear", CTLFLAG_RD,
694 	    &sc->sc_stats.ast_tx_linear, 0, "tx linearized to cluster");
695 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nodata", CTLFLAG_RD,
696 	    &sc->sc_stats.ast_tx_nodata, 0, "tx discarded empty frame");
697 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_busdma", CTLFLAG_RD,
698 	    &sc->sc_stats.ast_tx_busdma, 0, "tx failed for dma resrcs");
699 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_xretries", CTLFLAG_RD,
700 	    &sc->sc_stats.ast_tx_xretries, 0, "tx failed 'cuz too many retries");
701 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_fifoerr", CTLFLAG_RD,
702 	    &sc->sc_stats.ast_tx_fifoerr, 0, "tx failed 'cuz FIFO underrun");
703 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_filtered", CTLFLAG_RD,
704 	    &sc->sc_stats.ast_tx_filtered, 0, "tx failed 'cuz xmit filtered");
705 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_shortretry", CTLFLAG_RD,
706 	    &sc->sc_stats.ast_tx_shortretry, 0, "tx on-chip retries (short)");
707 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_longretry", CTLFLAG_RD,
708 	    &sc->sc_stats.ast_tx_longretry, 0, "tx on-chip retries (long)");
709 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_badrate", CTLFLAG_RD,
710 	    &sc->sc_stats.ast_tx_badrate, 0, "tx failed 'cuz bogus xmit rate");
711 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_noack", CTLFLAG_RD,
712 	    &sc->sc_stats.ast_tx_noack, 0, "tx frames with no ack marked");
713 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_rts", CTLFLAG_RD,
714 	    &sc->sc_stats.ast_tx_rts, 0, "tx frames with rts enabled");
715 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_cts", CTLFLAG_RD,
716 	    &sc->sc_stats.ast_tx_cts, 0, "tx frames with cts enabled");
717 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_shortpre", CTLFLAG_RD,
718 	    &sc->sc_stats.ast_tx_shortpre, 0, "tx frames with short preamble");
719 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_altrate", CTLFLAG_RD,
720 	    &sc->sc_stats.ast_tx_altrate, 0, "tx frames with alternate rate");
721 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_protect", CTLFLAG_RD,
722 	    &sc->sc_stats.ast_tx_protect, 0, "tx frames with protection");
723 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_ctsburst", CTLFLAG_RD,
724 	    &sc->sc_stats.ast_tx_ctsburst, 0, "tx frames with cts and bursting");
725 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_ctsext", CTLFLAG_RD,
726 	    &sc->sc_stats.ast_tx_ctsext, 0, "tx frames with cts extension");
727 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_nombuf", CTLFLAG_RD,
728 	    &sc->sc_stats.ast_rx_nombuf, 0, "rx setup failed 'cuz no mbuf");
729 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_busdma", CTLFLAG_RD,
730 	    &sc->sc_stats.ast_rx_busdma, 0, "rx setup failed for dma resrcs");
731 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_orn", CTLFLAG_RD,
732 	    &sc->sc_stats.ast_rx_orn, 0, "rx failed 'cuz of desc overrun");
733 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_crcerr", CTLFLAG_RD,
734 	    &sc->sc_stats.ast_rx_crcerr, 0, "rx failed 'cuz of bad CRC");
735 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_fifoerr", CTLFLAG_RD,
736 	    &sc->sc_stats.ast_rx_fifoerr, 0, "rx failed 'cuz of FIFO overrun");
737 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_badcrypt", CTLFLAG_RD,
738 	    &sc->sc_stats.ast_rx_badcrypt, 0, "rx failed 'cuz decryption");
739 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_badmic", CTLFLAG_RD,
740 	    &sc->sc_stats.ast_rx_badmic, 0, "rx failed 'cuz MIC failure");
741 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_phyerr", CTLFLAG_RD,
742 	    &sc->sc_stats.ast_rx_phyerr, 0, "rx failed 'cuz of PHY err");
743 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_tooshort", CTLFLAG_RD,
744 	    &sc->sc_stats.ast_rx_tooshort, 0, "rx discarded 'cuz frame too short");
745 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_toobig", CTLFLAG_RD,
746 	    &sc->sc_stats.ast_rx_toobig, 0, "rx discarded 'cuz frame too large");
747 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_packets", CTLFLAG_RD,
748 	    &sc->sc_stats.ast_rx_packets, 0, "packet recv on the interface");
749 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_mgt", CTLFLAG_RD,
750 	    &sc->sc_stats.ast_rx_mgt, 0, "management frames received");
751 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_ctl", CTLFLAG_RD,
752 	    &sc->sc_stats.ast_rx_ctl, 0, "rx discarded 'cuz ctl frame");
753 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_be_xmit", CTLFLAG_RD,
754 	    &sc->sc_stats.ast_be_xmit, 0, "beacons transmitted");
755 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_be_nombuf", CTLFLAG_RD,
756 	    &sc->sc_stats.ast_be_nombuf, 0, "beacon setup failed 'cuz no mbuf");
757 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_per_cal", CTLFLAG_RD,
758 	    &sc->sc_stats.ast_per_cal, 0, "periodic calibration calls");
759 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_per_calfail", CTLFLAG_RD,
760 	    &sc->sc_stats.ast_per_calfail, 0, "periodic calibration failed");
761 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_per_rfgain", CTLFLAG_RD,
762 	    &sc->sc_stats.ast_per_rfgain, 0, "periodic calibration rfgain reset");
763 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rate_calls", CTLFLAG_RD,
764 	    &sc->sc_stats.ast_rate_calls, 0, "rate control checks");
765 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rate_raise", CTLFLAG_RD,
766 	    &sc->sc_stats.ast_rate_raise, 0, "rate control raised xmit rate");
767 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rate_drop", CTLFLAG_RD,
768 	    &sc->sc_stats.ast_rate_drop, 0, "rate control dropped xmit rate");
769 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ant_defswitch", CTLFLAG_RD,
770 	    &sc->sc_stats.ast_ant_defswitch, 0, "rx/default antenna switches");
771 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ant_txswitch", CTLFLAG_RD,
772 	    &sc->sc_stats.ast_ant_txswitch, 0, "tx antenna switches");
773 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_cabq_xmit", CTLFLAG_RD,
774 	    &sc->sc_stats.ast_cabq_xmit, 0, "cabq frames transmitted");
775 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_cabq_busy", CTLFLAG_RD,
776 	    &sc->sc_stats.ast_cabq_busy, 0, "cabq found busy");
777 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_raw", CTLFLAG_RD,
778 	    &sc->sc_stats.ast_tx_raw, 0, "tx frames through raw api");
779 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ff_txok", CTLFLAG_RD,
780 	    &sc->sc_stats.ast_ff_txok, 0, "fast frames tx'd successfully");
781 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ff_txerr", CTLFLAG_RD,
782 	    &sc->sc_stats.ast_ff_txerr, 0, "fast frames tx'd w/ error");
783 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ff_rx", CTLFLAG_RD,
784 	    &sc->sc_stats.ast_ff_rx, 0, "fast frames rx'd");
785 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ff_flush", CTLFLAG_RD,
786 	    &sc->sc_stats.ast_ff_flush, 0, "fast frames flushed from staging q");
787 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_qfull", CTLFLAG_RD,
788 	    &sc->sc_stats.ast_tx_qfull, 0, "tx dropped 'cuz of queue limit");
789 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nobuf", CTLFLAG_RD,
790 	    &sc->sc_stats.ast_tx_nobuf, 0, "tx dropped 'cuz no ath buffer");
791 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tdma_update", CTLFLAG_RD,
792 	    &sc->sc_stats.ast_tdma_update, 0, "TDMA slot timing updates");
793 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tdma_timers", CTLFLAG_RD,
794 	    &sc->sc_stats.ast_tdma_timers, 0, "TDMA slot update set beacon timers");
795 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tdma_tsf", CTLFLAG_RD,
796 	    &sc->sc_stats.ast_tdma_tsf, 0, "TDMA slot update set TSF");
797 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tdma_ack", CTLFLAG_RD,
798 	    &sc->sc_stats.ast_tdma_ack, 0, "TDMA tx failed 'cuz ACK required");
799 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_raw_fail", CTLFLAG_RD,
800 	    &sc->sc_stats.ast_tx_raw_fail, 0, "raw tx failed 'cuz h/w down");
801 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_nofrag", CTLFLAG_RD,
802 	    &sc->sc_stats.ast_tx_nofrag, 0, "tx dropped 'cuz no ath frag buffer");
803 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_be_missed", CTLFLAG_RD,
804 	    &sc->sc_stats.ast_be_missed, 0, "number of -missed- beacons");
805 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_ani_cal", CTLFLAG_RD,
806 	    &sc->sc_stats.ast_ani_cal, 0, "number of ANI polls");
807 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_agg", CTLFLAG_RD,
808 	    &sc->sc_stats.ast_rx_agg, 0, "number of aggregate frames received");
809 
810 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_halfgi", CTLFLAG_RD,
811 	    &sc->sc_stats.ast_rx_halfgi, 0, "number of frames received with half-GI");
812 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_2040", CTLFLAG_RD,
813 	    &sc->sc_stats.ast_rx_2040, 0, "number of HT/40 frames received");
814 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_pre_crc_err", CTLFLAG_RD,
815 	    &sc->sc_stats.ast_rx_pre_crc_err, 0, "number of delimeter-CRC errors detected");
816 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_post_crc_err", CTLFLAG_RD,
817 	    &sc->sc_stats.ast_rx_post_crc_err, 0, "number of post-delimiter CRC errors detected");
818 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_decrypt_busy_err", CTLFLAG_RD,
819 	    &sc->sc_stats.ast_rx_decrypt_busy_err, 0, "number of frames received w/ busy decrypt engine");
820 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_hi_rx_chain", CTLFLAG_RD,
821 	    &sc->sc_stats.ast_rx_hi_rx_chain, 0, "");
822 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_htprotect", CTLFLAG_RD,
823 	    &sc->sc_stats.ast_tx_htprotect, 0, "HT tx frames with protection");
824 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_hitqueueend", CTLFLAG_RD,
825 	    &sc->sc_stats.ast_rx_hitqueueend, 0, "RX hit queue end");
826 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_timeout", CTLFLAG_RD,
827 	    &sc->sc_stats.ast_tx_timeout, 0, "TX Global Timeout");
828 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_cst", CTLFLAG_RD,
829 	    &sc->sc_stats.ast_tx_cst, 0, "TX Carrier Sense Timeout");
830 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_xtxop", CTLFLAG_RD,
831 	    &sc->sc_stats.ast_tx_xtxop, 0, "TX exceeded TXOP");
832 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_timerexpired", CTLFLAG_RD,
833 	    &sc->sc_stats.ast_tx_timerexpired, 0, "TX exceeded TX_TIMER register");
834 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_desccfgerr", CTLFLAG_RD,
835 	    &sc->sc_stats.ast_tx_desccfgerr, 0, "TX Descriptor Cfg Error");
836 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_swretries", CTLFLAG_RD,
837 	    &sc->sc_stats.ast_tx_swretries, 0, "TX software retry count");
838 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_swretrymax", CTLFLAG_RD,
839 	    &sc->sc_stats.ast_tx_swretrymax, 0, "TX software retry max reached");
840 
841 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_data_underrun", CTLFLAG_RD,
842 	    &sc->sc_stats.ast_tx_data_underrun, 0, "");
843 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_delim_underrun", CTLFLAG_RD,
844 	    &sc->sc_stats.ast_tx_delim_underrun, 0, "");
845 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_aggr_failall", CTLFLAG_RD,
846 	    &sc->sc_stats.ast_tx_aggr_failall, 0,
847 	    "Number of aggregate TX failures (whole frame)");
848 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_aggr_ok", CTLFLAG_RD,
849 	    &sc->sc_stats.ast_tx_aggr_ok, 0,
850 	    "Number of aggregate TX OK completions (subframe)");
851 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_aggr_fail", CTLFLAG_RD,
852 	    &sc->sc_stats.ast_tx_aggr_fail, 0,
853 	    "Number of aggregate TX failures (subframe)");
854 
855 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_intr", CTLFLAG_RD,
856 	    &sc->sc_stats.ast_rx_intr, 0, "RX interrupts");
857 	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_intr", CTLFLAG_RD,
858 	    &sc->sc_stats.ast_tx_intr, 0, "TX interrupts");
859 
860 	/* Attach the RX phy error array */
861 	ath_sysctl_stats_attach_rxphyerr(sc, child);
862 }
863 
864 /*
865  * This doesn't necessarily belong here (because it's HAL related, not
866  * driver related).
867  */
868 void
869 ath_sysctl_hal_attach(struct ath_softc *sc)
870 {
871 	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
872 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
873 	struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
874 
875 	tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hal", CTLFLAG_RD,
876 	    NULL, "Atheros HAL parameters");
877 	child = SYSCTL_CHILDREN(tree);
878 
879 	sc->sc_ah->ah_config.ah_debug = 0;
880 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "debug", CTLFLAG_RW,
881 	    &sc->sc_ah->ah_config.ah_debug, 0, "Atheros HAL debugging printfs");
882 
883 	sc->sc_ah->ah_config.ah_ar5416_biasadj = 0;
884 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "ar5416_biasadj", CTLFLAG_RW,
885 	    &sc->sc_ah->ah_config.ah_ar5416_biasadj, 0,
886 	    "Enable 2ghz AR5416 direction sensitivity bias adjust");
887 
888 	sc->sc_ah->ah_config.ah_dma_beacon_response_time = 2;
889 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "dma_brt", CTLFLAG_RW,
890 	    &sc->sc_ah->ah_config.ah_dma_beacon_response_time, 0,
891 	    "Atheros HAL DMA beacon response time");
892 
893 	sc->sc_ah->ah_config.ah_sw_beacon_response_time = 10;
894 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "sw_brt", CTLFLAG_RW,
895 	    &sc->sc_ah->ah_config.ah_sw_beacon_response_time, 0,
896 	    "Atheros HAL software beacon response time");
897 
898 	sc->sc_ah->ah_config.ah_additional_swba_backoff = 0;
899 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "swba_backoff", CTLFLAG_RW,
900 	    &sc->sc_ah->ah_config.ah_additional_swba_backoff, 0,
901 	    "Atheros HAL additional SWBA backoff time");
902 
903 	sc->sc_ah->ah_config.ah_force_full_reset = 0;
904 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "force_full_reset", CTLFLAG_RW,
905 	    &sc->sc_ah->ah_config.ah_force_full_reset, 0,
906 	    "Force full chip reset rather than a warm reset");
907 
908 	/*
909 	 * This is initialised by the driver.
910 	 */
911 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "serialise_reg_war", CTLFLAG_RW,
912 	    &sc->sc_ah->ah_config.ah_serialise_reg_war, 0,
913 	    "Force register access serialisation");
914 }
915