xref: /netbsd-src/sys/dev/scsipi/scsiconf.c (revision f4748aaa01faf324805f9747191535eb6600f82c)
1 /*	$NetBSD: scsiconf.c,v 1.303 2022/10/15 18:42:49 jmcneill Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998, 1999, 2004 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
9  * Simulation Facility, NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*
34  * Originally written by Julian Elischer (julian@tfs.com)
35  * for TRW Financial Systems for use under the MACH(2.5) operating system.
36  *
37  * TRW Financial Systems, in accordance with their agreement with Carnegie
38  * Mellon University, makes this software available to CMU to distribute
39  * or use in any manner that they see fit as long as this message is kept with
40  * the software. For this reason TFS also grants any other persons or
41  * organisations permission to use or modify this software.
42  *
43  * TFS supplies this software to be publicly redistributed
44  * on the understanding that TFS is not responsible for the correct
45  * functioning of this software in any circumstances.
46  *
47  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
48  */
49 
50 #include <sys/cdefs.h>
51 __KERNEL_RCSID(0, "$NetBSD: scsiconf.c,v 1.303 2022/10/15 18:42:49 jmcneill Exp $");
52 
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
56 #include <sys/proc.h>
57 #include <sys/kthread.h>
58 #include <sys/malloc.h>
59 #include <sys/mutex.h>
60 #include <sys/once.h>
61 #include <sys/device.h>
62 #include <sys/conf.h>
63 #include <sys/fcntl.h>
64 #include <sys/scsiio.h>
65 #include <sys/queue.h>
66 #include <sys/atomic.h>
67 #include <sys/kmem.h>
68 
69 #include <dev/scsipi/scsi_all.h>
70 #include <dev/scsipi/scsipi_all.h>
71 #include <dev/scsipi/scsiconf.h>
72 
73 #include "locators.h"
74 
75 static const struct scsipi_periphsw scsi_probe_dev = {
76 	NULL,
77 	NULL,
78 	NULL,
79 	NULL,
80 };
81 
82 struct scsi_initq {
83 	struct scsipi_channel *sc_channel;
84 	TAILQ_ENTRY(scsi_initq) scsi_initq;
85 };
86 
87 static ONCE_DECL(scsi_conf_ctrl);
88 static TAILQ_HEAD(, scsi_initq)	scsi_initq_head;
89 static kmutex_t			scsibus_qlock;
90 static kcondvar_t		scsibus_qcv;
91 
92 static int	scsi_probe_device(struct scsibus_softc *, int, int);
93 
94 static int	scsibusmatch(device_t, cfdata_t, void *);
95 static void	scsibusattach(device_t, device_t, void *);
96 static int	scsibusdetach(device_t, int flags);
97 static int	scsibusrescan(device_t, const char *, const int *);
98 static void	scsidevdetached(device_t, device_t);
99 
100 CFATTACH_DECL3_NEW(scsibus, sizeof(struct scsibus_softc),
101     scsibusmatch, scsibusattach, scsibusdetach, NULL,
102     scsibusrescan, scsidevdetached, DVF_DETACH_SHUTDOWN);
103 
104 extern struct cfdriver scsibus_cd;
105 
106 static dev_type_open(scsibusopen);
107 static dev_type_close(scsibusclose);
108 static dev_type_ioctl(scsibusioctl);
109 
110 const struct cdevsw scsibus_cdevsw = {
111 	.d_open = scsibusopen,
112 	.d_close = scsibusclose,
113 	.d_read = noread,
114 	.d_write = nowrite,
115 	.d_ioctl = scsibusioctl,
116 	.d_stop = nostop,
117 	.d_tty = notty,
118 	.d_poll = nopoll,
119 	.d_mmap = nommap,
120 	.d_kqfilter = nokqfilter,
121 	.d_discard = nodiscard,
122 	.d_flag = D_OTHER | D_MPSAFE
123 };
124 
125 static int	scsibusprint(void *, const char *);
126 static void	scsibus_discover_thread(void *);
127 static void	scsibus_config(struct scsibus_softc *);
128 
129 static int
130 scsibus_init(void)
131 {
132 
133 	TAILQ_INIT(&scsi_initq_head);
134 	mutex_init(&scsibus_qlock, MUTEX_DEFAULT, IPL_NONE);
135 	cv_init(&scsibus_qcv, "scsinitq");
136 	return 0;
137 }
138 
139 static int
140 scsibusmatch(device_t parent, cfdata_t cf, void *aux)
141 {
142 	struct scsipi_channel *chan = aux;
143 
144 	if (SCSIPI_BUSTYPE_TYPE(chan->chan_bustype->bustype_type) !=
145 	    SCSIPI_BUSTYPE_SCSI)
146 		return 0;
147 
148 	if (cf->cf_loc[SCSICF_CHANNEL] != chan->chan_channel &&
149 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
150 		return (0);
151 
152 	return (1);
153 }
154 
155 static void
156 scsibusattach(device_t parent, device_t self, void *aux)
157 {
158 	struct scsibus_softc *sc = device_private(self);
159 	struct scsipi_channel *chan = aux;
160 	struct scsi_initq *scsi_initq;
161 
162 	if (!pmf_device_register(self, NULL, NULL))
163 		aprint_error_dev(self, "couldn't establish power handler\n");
164 
165 	sc->sc_dev = self;
166 	sc->sc_channel = chan;
167 	chan->chan_name = device_xname(sc->sc_dev);
168 
169 	aprint_naive(": SCSI bus\n");
170 	aprint_normal(": %d target%s, %d lun%s per target\n",
171 	    chan->chan_ntargets,
172 	    chan->chan_ntargets == 1 ? "" : "s",
173 	    chan->chan_nluns,
174 	    chan->chan_nluns == 1 ? "" : "s");
175 
176 	/*
177 	 * XXX
178 	 * newer adapters support more than 256 outstanding commands
179 	 * per periph and don't use the tag (they eventually allocate one
180 	 * internally). Right now scsipi always allocate a tag and
181 	 * is limited to 256 tags, per scsi specs.
182 	 * this should be revisited
183 	 */
184 	if (chan->chan_flags & SCSIPI_CHAN_OPENINGS) {
185 		if (chan->chan_max_periph > 256)
186 			chan->chan_max_periph = 256;
187 	} else {
188 		if (chan->chan_adapter->adapt_max_periph > 256)
189 			chan->chan_adapter->adapt_max_periph = 256;
190 	}
191 
192 	if (atomic_inc_uint_nv(&chan_running(chan)) == 1)
193 		mutex_init(chan_mtx(chan), MUTEX_DEFAULT, IPL_BIO);
194 
195 	cv_init(&chan->chan_cv_thr, "scshut");
196 	cv_init(&chan->chan_cv_comp, "sccomp");
197 	cv_init(&chan->chan_cv_xs, "xscmd");
198 
199 	if (scsipi_adapter_addref(chan->chan_adapter))
200 		return;
201 
202 	RUN_ONCE(&scsi_conf_ctrl, scsibus_init);
203 
204 	/* Initialize the channel structure first */
205 	chan->chan_init_cb = NULL;
206 	chan->chan_init_cb_arg = NULL;
207 
208 	scsi_initq = malloc(sizeof(struct scsi_initq), M_DEVBUF, M_WAITOK);
209 	scsi_initq->sc_channel = chan;
210 	TAILQ_INSERT_TAIL(&scsi_initq_head, scsi_initq, scsi_initq);
211         config_pending_incr(sc->sc_dev);
212 	if (scsipi_channel_init(chan)) {
213 		aprint_error_dev(sc->sc_dev, "failed to init channel\n");
214 		return;
215 	}
216 
217         /*
218          * Create the discover thread
219          */
220         if (kthread_create(PRI_NONE, 0, NULL, scsibus_discover_thread, sc,
221             &chan->chan_dthread, "%s-d", chan->chan_name)) {
222                 aprint_error_dev(sc->sc_dev, "unable to create discovery "
223 		    "thread for channel %d\n", chan->chan_channel);
224                 return;
225         }
226 }
227 
228 static void
229 scsibus_discover_thread(void *arg)
230 {
231 	struct scsibus_softc *sc = arg;
232 
233 	scsibus_config(sc);
234 	sc->sc_channel->chan_dthread = NULL;
235 	kthread_exit(0);
236 }
237 
238 static void
239 scsibus_config(struct scsibus_softc *sc)
240 {
241 	struct scsipi_channel *chan = sc->sc_channel;
242 	struct scsi_initq *scsi_initq;
243 
244 #ifndef SCSI_DELAY
245 #define SCSI_DELAY 2
246 #endif
247 	if ((chan->chan_flags & SCSIPI_CHAN_NOSETTLE) == 0 &&
248 	    SCSI_DELAY > 0) {
249 		aprint_normal_dev(sc->sc_dev,
250 		    "waiting %d seconds for devices to settle...\n",
251 		    SCSI_DELAY);
252 		/* ...an identifier we know no one will use... */
253 		kpause("scsidly", false, SCSI_DELAY * hz, NULL);
254 	}
255 
256 	/* Make sure the devices probe in scsibus order to avoid jitter. */
257 	mutex_enter(&scsibus_qlock);
258 	for (;;) {
259 		scsi_initq = TAILQ_FIRST(&scsi_initq_head);
260 		if (scsi_initq->sc_channel == chan)
261 			break;
262 		cv_wait(&scsibus_qcv, &scsibus_qlock);
263 	}
264 	mutex_exit(&scsibus_qlock);
265 
266 	scsi_probe_bus(sc, -1, -1);
267 
268 	mutex_enter(&scsibus_qlock);
269 	TAILQ_REMOVE(&scsi_initq_head, scsi_initq, scsi_initq);
270 	cv_broadcast(&scsibus_qcv);
271 	mutex_exit(&scsibus_qlock);
272 
273 	free(scsi_initq, M_DEVBUF);
274 
275 	scsipi_adapter_delref(chan->chan_adapter);
276 
277 	config_pending_decr(sc->sc_dev);
278 }
279 
280 static int
281 scsibusdetach(device_t self, int flags)
282 {
283 	struct scsibus_softc *sc = device_private(self);
284 	struct scsipi_channel *chan = sc->sc_channel;
285 	int error;
286 
287 	/*
288 	 * Defer while discovery thread is running
289 	 */
290 	while (chan->chan_dthread != NULL)
291 		kpause("scsibusdet", false, hz, NULL);
292 
293 	/*
294 	 * Detach all of the periphs.
295 	 */
296 	error = scsipi_target_detach(chan, -1, -1, flags);
297 	if (error)
298 		return error;
299 
300 	pmf_device_deregister(self);
301 
302 	/*
303 	 * Shut down the channel.
304 	 */
305 	scsipi_channel_shutdown(chan);
306 
307 	cv_destroy(&chan->chan_cv_xs);
308 	cv_destroy(&chan->chan_cv_comp);
309 	cv_destroy(&chan->chan_cv_thr);
310 
311 	membar_release();
312 	if (atomic_dec_uint_nv(&chan_running(chan)) == 0) {
313 		membar_acquire();
314 		mutex_destroy(chan_mtx(chan));
315 	}
316 
317 	return 0;
318 }
319 
320 static int
321 lun_compar(const void *a, const void *b)
322 {
323 	const uint16_t * const la = a, * const lb = b;
324 
325 	if (*la < *lb)
326 		return -1;
327 	if (*la > *lb)
328 		return 1;
329 	return 0;
330 }
331 
332 static int
333 scsi_report_luns(struct scsibus_softc *sc, int target,
334     uint16_t ** const luns, size_t *nluns)
335 {
336 	struct scsi_report_luns replun;
337 	struct scsi_report_luns_header *rlr;
338 	struct scsi_report_luns_lun *lunp;
339 
340 	struct scsipi_channel *chan = sc->sc_channel;
341 	struct scsipi_inquiry_data inqbuf;
342 	struct scsipi_periph *periph;
343 	uint16_t tmp;
344 
345 	int error;
346 	size_t i, rlrlen, rlrlenmin;
347 
348 	memset(&replun, 0, sizeof(replun));
349 
350 	periph = scsipi_alloc_periph(M_WAITOK);
351 	periph->periph_channel = chan;
352 	periph->periph_switch = &scsi_probe_dev;
353 
354 	periph->periph_target = target;
355 	periph->periph_lun = 0;
356 	periph->periph_quirks = chan->chan_defquirks;
357 
358 	if ((error = scsipi_inquire(periph, &inqbuf,
359 	    XS_CTL_DISCOVERY | XS_CTL_SILENT)))
360 		goto end2;
361 	periph->periph_version = inqbuf.version & SID_ANSII;
362 	if (periph->periph_version < 3) {
363 		error = ENOTSUP;
364 		goto end2;
365 	}
366 
367 	rlrlen = rlrlenmin = sizeof(*rlr) + sizeof(*lunp) * 1;
368 
369 again:
370 	rlr = kmem_zalloc(rlrlen, KM_SLEEP);
371 
372 	replun.opcode = SCSI_REPORT_LUNS;
373 	replun.selectreport = SELECTREPORT_NORMAL;
374 	_lto4b(rlrlen, replun.alloclen);
375 
376 	error = scsipi_command(periph, (void *)&replun, sizeof(replun),
377 	    (void *)rlr, rlrlen, SCSIPIRETRIES, 10000, NULL,
378 	    XS_CTL_DATA_IN | XS_CTL_DISCOVERY | XS_CTL_SILENT);
379 	if (error)
380 		goto end;
381 
382 	if (sizeof(*rlr) + _4btol(rlr->length) > rlrlen &&
383 	    sizeof(*rlr) + _4btol(rlr->length) <= 32) {
384 	    	const size_t old_rlrlen = rlrlen;
385 		rlrlen = sizeof(*rlr) + uimin(_4btol(rlr->length),
386 		    16383 * sizeof(*lunp));
387 		kmem_free(rlr, old_rlrlen);
388 		rlr = NULL;
389 		if (rlrlen < rlrlenmin) {
390 			error = EIO;
391 			goto end;
392 		}
393 		goto again;
394 	}
395 
396 	KASSERT(nluns != NULL);
397 	*nluns = (rlrlen - sizeof(*rlr)) / sizeof(*lunp);
398 
399 	KASSERT(luns != NULL);
400 	*luns = kmem_alloc(*nluns * sizeof(**luns), KM_SLEEP);
401 
402 	for (i = 0; i < *nluns; i++) {
403 		lunp = &((struct scsi_report_luns_lun *)&rlr[1])[i];
404 		switch (lunp->lun[0] & 0xC0) {
405 		default:
406 			scsi_print_addr(periph);
407 			printf("LUN %016"PRIx64" ignored\n", _8btol(lunp->lun));
408 			(*luns)[i] = 0;
409 			break;
410 		case 0x40:
411 			(*luns)[i] = _2btol(&lunp->lun[0]) & 0x3FFF;
412 			break;
413 		case 0x00:
414 			(*luns)[i] = _2btol(&lunp->lun[0]) & 0x00FF;
415 			break;
416 		}
417 	}
418 
419 	kheapsort(*luns, *nluns, sizeof(**luns), lun_compar, &tmp);
420 
421 end:
422 	if (rlr)
423 		kmem_free(rlr, rlrlen);
424 end2:
425 	scsipi_free_periph(periph);
426 	return error;
427 }
428 
429 static void
430 scsi_discover_luns(struct scsibus_softc *sc, int target, int minlun, int maxlun)
431 {
432 	uint16_t *luns = NULL;	/* XXX gcc */
433 	size_t nluns = 0;	/* XXX gcc */
434 
435 	if (scsi_report_luns(sc, target, &luns, &nluns) == 0) {
436 		for (size_t i = 0; i < nluns; i++)
437 			if (luns[i] >= minlun && luns[i] <= maxlun)
438 				scsi_probe_device(sc, target, luns[i]);
439 		kmem_free(luns, sizeof(*luns) * nluns);
440 		return;
441 	}
442 
443 	for (int lun = minlun; lun <= maxlun; lun++) {
444 		/*
445 		 * See if there's a device present, and configure it.
446 		 */
447 		if (scsi_probe_device(sc, target, lun) == 0)
448 			break;
449 		/* otherwise something says we should look further */
450 	}
451 }
452 
453 /*
454  * Probe the requested scsi bus. It must be already set up.
455  * target and lun optionally narrow the search if not -1
456  */
457 int
458 scsi_probe_bus(struct scsibus_softc *sc, int target, int lun)
459 {
460 	struct scsipi_channel *chan = sc->sc_channel;
461 	int maxtarget, mintarget, maxlun, minlun;
462 	int error;
463 
464 	if (target == -1) {
465 		maxtarget = chan->chan_ntargets - 1;
466 		mintarget = 0;
467 	} else {
468 		if (target < 0 || target >= chan->chan_ntargets)
469 			return (EINVAL);
470 		maxtarget = mintarget = target;
471 	}
472 
473 	if (lun == -1) {
474 		maxlun = chan->chan_nluns - 1;
475 		minlun = 0;
476 	} else {
477 		if (lun < 0 || lun >= chan->chan_nluns)
478 			return (EINVAL);
479 		maxlun = minlun = lun;
480 	}
481 
482 	/*
483 	 * Some HBAs provide an abstracted view of the bus; give them an
484 	 * opportunity to re-scan it before we do.
485 	 */
486 	scsipi_adapter_ioctl(chan, SCBUSIOLLSCAN, NULL, 0, curproc);
487 
488 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
489 		goto ret;
490 	for (target = mintarget; target <= maxtarget; target++) {
491 		if (target == chan->chan_id)
492 			continue;
493 
494 		scsi_discover_luns(sc, target, minlun, maxlun);
495 
496 		/*
497 		 * Now that we've discovered all of the LUNs on this
498 		 * I_T Nexus, update the xfer mode for all of them
499 		 * that we know about.
500 		 */
501 		scsipi_set_xfer_mode(chan, target, 1);
502 	}
503 
504 	scsipi_adapter_delref(chan->chan_adapter);
505 ret:
506 	return (error);
507 }
508 
509 static int
510 scsibusrescan(device_t sc, const char *ifattr, const int *locators)
511 {
512 
513 	KASSERT(ifattr && !strcmp(ifattr, "scsibus"));
514 	KASSERT(locators);
515 
516 	return (scsi_probe_bus(device_private(sc),
517 		locators[SCSIBUSCF_TARGET], locators[SCSIBUSCF_LUN]));
518 }
519 
520 static void
521 scsidevdetached(device_t self, device_t child)
522 {
523 	struct scsibus_softc *sc = device_private(self);
524 	struct scsipi_channel *chan = sc->sc_channel;
525 	struct scsipi_periph *periph;
526 	int target, lun;
527 
528 	target = device_locator(child, SCSIBUSCF_TARGET);
529 	lun = device_locator(child, SCSIBUSCF_LUN);
530 
531 	mutex_enter(chan_mtx(chan));
532 
533 	periph = scsipi_lookup_periph_locked(chan, target, lun);
534 	KASSERT(periph != NULL && periph->periph_dev == child);
535 
536 	scsipi_remove_periph(chan, periph);
537 	scsipi_free_periph(periph);
538 
539 	mutex_exit(chan_mtx(chan));
540 }
541 
542 /*
543  * Print out autoconfiguration information for a subdevice.
544  *
545  * This is a slight abuse of 'standard' autoconfiguration semantics,
546  * because 'print' functions don't normally print the colon and
547  * device information.  However, in this case that's better than
548  * either printing redundant information before the attach message,
549  * or having the device driver call a special function to print out
550  * the standard device information.
551  */
552 static int
553 scsibusprint(void *aux, const char *pnp)
554 {
555 	struct scsipibus_attach_args *sa = aux;
556 	struct scsipi_inquiry_pattern *inqbuf;
557 	u_int8_t type;
558 	const char *dtype;
559 	char vendor[33], product[65], revision[17];
560 	int target, lun;
561 
562 	if (pnp != NULL)
563 		aprint_normal("%s", pnp);
564 
565 	inqbuf = &sa->sa_inqbuf;
566 
567 	target = sa->sa_periph->periph_target;
568 	lun = sa->sa_periph->periph_lun;
569 	type = inqbuf->type & SID_TYPE;
570 
571 	dtype = scsipi_dtype(type);
572 
573 	strnvisx(vendor, sizeof(vendor), inqbuf->vendor, 8,
574 	    VIS_TRIM|VIS_SAFE|VIS_OCTAL);
575 	strnvisx(product, sizeof(product), inqbuf->product, 16,
576 	    VIS_TRIM|VIS_SAFE|VIS_OCTAL);
577 	strnvisx(revision, sizeof(revision), inqbuf->revision, 4,
578 	    VIS_TRIM|VIS_SAFE|VIS_OCTAL);
579 
580 	aprint_normal(" target %d lun %d: <%s, %s, %s> %s %s%s",
581 		      target, lun, vendor, product, revision, dtype,
582 		      inqbuf->removable ? "removable" : "fixed",
583 		      (sa->sa_periph->periph_opcs != NULL)
584 		        ? " timeout-info" : "");
585 
586 	return (UNCONF);
587 }
588 
589 static const struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
590 	{{T_DIRECT, T_REMOV,
591 	 "Apple   ", "iPod            ", ""},	  PQUIRK_START},
592 	{{T_CDROM, T_REMOV,
593 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     PQUIRK_NOLUNS},
594 	{{T_CDROM, T_REMOV,
595 	 "CHINON  ", "CD-ROM CDS-435  ", ""},     PQUIRK_NOLUNS},
596 	{{T_CDROM, T_REMOV,
597 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     PQUIRK_NOLUNS},
598 	{{T_CDROM, T_REMOV,
599 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     PQUIRK_NOLUNS},
600 	{{T_CDROM, T_REMOV,
601 	 "DEC     ", "RRD42   (C) DEC ", ""},     PQUIRK_NOLUNS},
602 	{{T_CDROM, T_REMOV,
603 	 "DENON   ", "DRD-25X         ", "V"},    PQUIRK_NOLUNS},
604 	{{T_CDROM, T_REMOV,
605 	 "GENERIC ", "CRD-BP2         ", ""},     PQUIRK_NOLUNS},
606 	{{T_CDROM, T_REMOV,
607 	 "HP      ", "C4324/C4325     ", ""},     PQUIRK_NOLUNS},
608 	{{T_CDROM, T_REMOV,
609 	 "IMS     ", "CDD521/10       ", "2.06"}, PQUIRK_NOLUNS},
610 	{{T_CDROM, T_REMOV,
611 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, PQUIRK_NOLUNS},
612 	{{T_CDROM, T_REMOV,
613 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     PQUIRK_NOLUNS},
614 	{{T_CDROM, T_REMOV,
615 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  PQUIRK_NOLUNS},
616 	{{T_CDROM, T_REMOV,
617 	 "NEC     ", "CD-ROM DRIVE:502", ""},     PQUIRK_NOLUNS},
618 	{{T_CDROM, T_REMOV,
619 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     PQUIRK_NOLUNS},
620 	{{T_CDROM, T_REMOV,
621 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     PQUIRK_NOLUNS},
622 	{{T_CDROM, T_REMOV,
623 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     PQUIRK_NOLUNS},
624 	{{T_CDROM, T_REMOV,
625 	 "NEC     ", "CD-ROM DRIVE:841", ""},     PQUIRK_NOLUNS},
626         {{T_CDROM, T_REMOV,
627 	 "OLYMPUS ", "CDS620E         ", "1.1d"},
628 			       PQUIRK_NOLUNS|PQUIRK_NOSYNC|PQUIRK_NOCAPACITY},
629 	{{T_CDROM, T_REMOV,
630 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, PQUIRK_NOLUNS},
631         {{T_CDROM, T_REMOV,
632          "PLEXTOR ", "CD-ROM PX-4XCS  ", "1.01"},
633                                PQUIRK_NOLUNS|PQUIRK_NOSYNC},
634 	{{T_CDROM, T_REMOV,
635 	 "SONY    ", "CD-ROM CDU-541  ", ""},     PQUIRK_NOLUNS},
636 	{{T_CDROM, T_REMOV,
637 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     PQUIRK_NOLUNS},
638 	{{T_CDROM, T_REMOV,
639 	 "SONY    ", "CD-ROM CDU-561  ", ""},     PQUIRK_NOLUNS},
640 	{{T_CDROM, T_REMOV,
641 	 "SONY    ", "CD-ROM CDU-76S", ""},
642 				PQUIRK_NOLUNS|PQUIRK_NOSYNC|PQUIRK_NOWIDE},
643 	{{T_CDROM, T_REMOV,
644 	 "SONY    ", "CD-ROM CDU-8003A", ""},     PQUIRK_NOLUNS},
645 	{{T_CDROM, T_REMOV,
646 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     PQUIRK_NOLUNS},
647 	{{T_CDROM, T_REMOV,
648 	 "TEAC    ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
649 	{{T_CDROM, T_REMOV,
650 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, PQUIRK_NOLUNS},
651 	{{T_CDROM, T_REMOV,
652 	 "TEXEL   ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
653 	{{T_CDROM, T_REMOV,
654 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, PQUIRK_NOLUNS},
655 	{{T_CDROM, T_REMOV,
656 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, PQUIRK_NOLUNS},
657 	{{T_CDROM, T_REMOV,
658 	 "TOSHIBA ", "XM-4101TASUNSLCD", ""}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
659 	/* "IBM CDRM00201     !F" 0724 is an IBM OEM Toshiba XM-4101BME */
660 	{{T_CDROM, T_REMOV,
661 	 "IBM     ", "CDRM00201     !F", "0724"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
662 	{{T_CDROM, T_REMOV,
663 	 "ShinaKen", "CD-ROM DM-3x1S",   "1.04"}, PQUIRK_NOLUNS},
664 	{{T_CDROM, T_REMOV,
665 	 "JVC     ", "R2626",            ""},     PQUIRK_NOLUNS},
666 	{{T_CDROM, T_REMOV,
667 	 "YAMAHA", "CRW8424S",           ""},     PQUIRK_NOLUNS},
668 	{{T_CDROM, T_REMOV,
669 	 "NEC     ", "CD-ROM DRIVE:222", ""},	  PQUIRK_NOLUNS|PQUIRK_NOSYNC},
670 
671 	{{T_DIRECT, T_FIXED,
672 	 "MICROP  ", "1588-15MBSUN0669", ""},     PQUIRK_AUTOSAVE},
673 	{{T_DIRECT, T_FIXED,
674 	 "MICROP  ", "2217-15MQ1091501", ""},     PQUIRK_NOSYNCCACHE},
675 	{{T_OPTICAL, T_REMOV,
676 	 "EPSON   ", "OMD-5010        ", "3.08"}, PQUIRK_NOLUNS},
677 	{{T_DIRECT, T_FIXED,
678 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, PQUIRK_NOMODESENSE},
679 	{{T_DIRECT, T_FIXED,
680 	 "ADAPTEC ", "ACB-4000",         ""},     PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE|PQUIRK_NOMODESENSE},
681 	{{T_DIRECT, T_FIXED,
682 	 "DEC     ", "RZ55     (C) DEC", ""},     PQUIRK_AUTOSAVE},
683 	{{T_DIRECT, T_FIXED,
684 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},
685 				PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE},
686 	{{T_DIRECT, T_FIXED,
687 	 "MICROP",  "1548-15MZ1077801",  "HZ2P"}, PQUIRK_NOTAG},
688 	{{T_DIRECT, T_FIXED,
689 	 "HP      ", "C372",             ""},     PQUIRK_NOTAG},
690 	{{T_DIRECT, T_FIXED,
691 	 "IBMRAID ", "0662S",		 ""},     PQUIRK_AUTOSAVE},
692 	{{T_DIRECT, T_FIXED,
693 	 "IBM     ", "0663H",		 ""},     PQUIRK_AUTOSAVE},
694 	{{T_DIRECT, T_FIXED,
695 	 "IBM",	     "0664",		 ""},     PQUIRK_AUTOSAVE},
696 	{{T_DIRECT, T_FIXED,
697 	/* improperly report DT-only sync mode */
698 	 "IBM     ", "DXHS36D",		 ""},
699 				PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
700 	{{T_DIRECT, T_FIXED,
701 	 "IBM     ", "DXHS18Y",		 ""},
702 				PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
703 	{{T_DIRECT, T_FIXED,
704 	 "IBM     ", "H3171-S2",	 ""},
705 				PQUIRK_NOLUNS|PQUIRK_AUTOSAVE},
706 	{{T_DIRECT, T_FIXED,
707 	 "IBM     ", "KZ-C",		 ""},	  PQUIRK_AUTOSAVE},
708 	/* Broken IBM disk */
709 	{{T_DIRECT, T_FIXED,
710 	 ""	   , "DFRSS2F",		 ""},	  PQUIRK_AUTOSAVE},
711 	{{T_DIRECT, T_FIXED,
712 	 "Initio  ", "",		 ""},	  PQUIRK_NOBIGMODESENSE},
713 	{{T_DIRECT, T_FIXED,
714 	 "JMicron ", "Generic         ", ""},	  PQUIRK_NOFUA},
715 	{{T_DIRECT, T_REMOV,
716 	 "MPL     ", "MC-DISK-        ", ""},     PQUIRK_NOLUNS},
717 	{{T_DIRECT, T_FIXED,
718 	 "MAXTOR  ", "XT-3280         ", ""},     PQUIRK_NOLUNS},
719 	{{T_DIRECT, T_FIXED,
720 	 "MAXTOR  ", "XT-4380S        ", ""},     PQUIRK_NOLUNS},
721 	{{T_DIRECT, T_FIXED,
722 	 "MAXTOR  ", "MXT-1240S       ", ""},     PQUIRK_NOLUNS},
723 	{{T_DIRECT, T_FIXED,
724 	 "MAXTOR  ", "XT-4170S        ", ""},     PQUIRK_NOLUNS},
725 	{{T_DIRECT, T_FIXED,
726 	 "MAXTOR  ", "XT-8760S",         ""},     PQUIRK_NOLUNS},
727 	{{T_DIRECT, T_FIXED,
728 	 "MAXTOR  ", "LXT-213S        ", ""},     PQUIRK_NOLUNS},
729 	{{T_DIRECT, T_FIXED,
730 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     PQUIRK_NOLUNS},
731 	{{T_DIRECT, T_FIXED,
732 	 "MAXTOR  ", "LXT-200S        ", ""},     PQUIRK_NOLUNS},
733 	{{T_DIRECT, T_FIXED,
734 	 "MEGADRV ", "EV1000",           ""},     PQUIRK_NOMODESENSE},
735 	{{T_DIRECT, T_FIXED,
736 	 "MICROP", "1991-27MZ",          ""},     PQUIRK_NOTAG},
737 	{{T_DIRECT, T_FIXED,
738 	 "MST     ", "SnapLink        ", ""},     PQUIRK_NOLUNS},
739 	{{T_DIRECT, T_FIXED,
740 	 "NEC     ", "D3847           ", "0307"}, PQUIRK_NOLUNS},
741 	{{T_DIRECT, T_FIXED,
742 	 "QUANTUM ", "ELS85S          ", ""},     PQUIRK_AUTOSAVE},
743 	{{T_DIRECT, T_FIXED,
744 	 "QUANTUM ", "LPS525S         ", ""},     PQUIRK_NOLUNS},
745 	{{T_DIRECT, T_FIXED,
746 	 "QUANTUM ", "P105S 910-10-94x", ""},     PQUIRK_NOLUNS},
747 	{{T_DIRECT, T_FIXED,
748 	 "QUANTUM ", "PD1225S         ", ""},     PQUIRK_NOLUNS},
749 	{{T_DIRECT, T_FIXED,
750 	 "QUANTUM ", "PD210S   SUN0207", ""},     PQUIRK_NOLUNS},
751 	{{T_DIRECT, T_FIXED,
752 	 "QUANTUM ", "ATLAS IV 9 WLS", "0A0A"},   PQUIRK_CAP_NODT},
753 	{{T_DIRECT, T_FIXED,
754 	 "RODIME  ", "RO3000S         ", ""},     PQUIRK_NOLUNS},
755 	{{T_DIRECT, T_FIXED,
756 	 "SEAGATE ", "ST125N          ", ""},     PQUIRK_NOLUNS},
757 	{{T_DIRECT, T_FIXED,
758 	 "SEAGATE ", "ST157N          ", ""},     PQUIRK_NOLUNS},
759 	{{T_DIRECT, T_FIXED,
760 	 "SEAGATE ", "ST296           ", ""},     PQUIRK_NOLUNS},
761 	{{T_DIRECT, T_FIXED,
762 	 "SEAGATE ", "ST296N          ", ""},     PQUIRK_NOLUNS},
763 	{{T_DIRECT, T_FIXED,
764 	 "SEAGATE ", "ST318404LC      ", ""},     PQUIRK_NOLUNS},
765 	{{T_DIRECT, T_FIXED,
766 	 "SEAGATE ", "ST336753LC      ", ""},     PQUIRK_NOLUNS},
767 	{{T_DIRECT, T_FIXED,
768 	 "SEAGATE ", "ST336753LW      ", ""},     PQUIRK_NOLUNS},
769 	{{T_DIRECT, T_FIXED,
770 	 "SEAGATE ", "ST336754LC      ", ""},     PQUIRK_NOLUNS},
771 	{{T_DIRECT, T_FIXED,
772 	 "SEAGATE ", "ST39236LC       ", ""},     PQUIRK_NOLUNS},
773 	{{T_DIRECT, T_FIXED,
774 	 "SEAGATE ", "ST15150N        ", ""},     PQUIRK_NOTAG},
775 	{{T_DIRECT, T_FIXED,
776 	 "SEAGATE ", "ST19171",          ""},     PQUIRK_NOMODESENSE},
777 	{{T_DIRECT, T_FIXED,
778 	 "SEAGATE ", "ST32430N",         ""},     PQUIRK_CAP_SYNC},
779 	{{T_DIRECT, T_FIXED,
780 	 "SEAGATE ", "ST34501FC       ", ""},     PQUIRK_NOMODESENSE},
781 	{{T_DIRECT, T_FIXED,
782 	 "SEAGATE ", "SX910800N",        ""},     PQUIRK_NOTAG},
783 	{{T_DIRECT, T_FIXED,
784 	 "TOSHIBA ", "MK538FB         ", "6027"}, PQUIRK_NOLUNS},
785 	{{T_DIRECT, T_FIXED,
786 	 "MICROP  ", "1924",          ""},     PQUIRK_CAP_SYNC},
787 	{{T_DIRECT, T_FIXED,
788 	 "FUJITSU ", "M2266",         ""},     PQUIRK_CAP_SYNC},
789 	{{T_DIRECT, T_FIXED,
790 	 "FUJITSU ", "M2624S-512      ", ""},     PQUIRK_CAP_SYNC},
791 	{{T_DIRECT, T_FIXED,
792 	 "SEAGATE ", "SX336704LC"   , ""}, PQUIRK_CAP_SYNC | PQUIRK_CAP_WIDE16},
793 	{{T_DIRECT, T_FIXED,
794 	 "SEAGATE ", "SX173404LC",       ""},     PQUIRK_CAP_SYNC | PQUIRK_CAP_WIDE16},
795 	{{T_DIRECT, T_FIXED,
796 	 "ORACLE",   "BlockVolume",	 ""},	  PQUIRK_ONLYBIG},
797 
798 	{{T_DIRECT, T_REMOV,
799 	 "IOMEGA", "ZIP 100",		 "J.03"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
800 	{{T_DIRECT, T_REMOV,
801 	 "INSITE", "I325VM",             ""},     PQUIRK_NOLUNS},
802 
803 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
804 	{{T_SEQUENTIAL, T_REMOV,
805 	 "        ", "                ", "    "}, PQUIRK_NOLUNS},
806 	{{T_SEQUENTIAL, T_REMOV,
807 	 "EMULEX  ", "MT-02 QIC       ", ""},     PQUIRK_NOLUNS},
808 	{{T_SEQUENTIAL, T_REMOV,
809 	 "CALIPER ", "CP150           ", ""},     PQUIRK_NOLUNS},
810 	{{T_SEQUENTIAL, T_REMOV,
811 	 "EXABYTE ", "EXB-8200        ", ""},     PQUIRK_NOLUNS},
812 	{{T_SEQUENTIAL, T_REMOV,
813 	 "SONY    ", "GY-10C          ", ""},     PQUIRK_NOLUNS},
814 	{{T_SEQUENTIAL, T_REMOV,
815 	 "SONY    ", "SDT-2000        ", "2.09"}, PQUIRK_NOLUNS},
816 	{{T_SEQUENTIAL, T_REMOV,
817 	 "SONY    ", "SDT-5000        ", "3."},   PQUIRK_NOSYNC|PQUIRK_NOWIDE},
818 	{{T_SEQUENTIAL, T_REMOV,
819 	 "SONY    ", "SDT-5200        ", "3."},   PQUIRK_NOLUNS},
820 	{{T_SEQUENTIAL, T_REMOV,
821 	 "TANDBERG", " TDC 3600       ", ""},     PQUIRK_NOLUNS},
822 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
823 	{{T_SEQUENTIAL, T_REMOV,
824 	 "ARCHIVE ", "VIPER 150  21247", ""},     PQUIRK_NOLUNS},
825 	/* Following entry for a Cipher ST150S; ref. PR4171 */
826 	{{T_SEQUENTIAL, T_REMOV,
827 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, PQUIRK_NOLUNS},
828 	{{T_SEQUENTIAL, T_REMOV,
829 	 "ARCHIVE ", "Python 28454-XXX", ""},     PQUIRK_NOLUNS},
830 	{{T_SEQUENTIAL, T_REMOV,
831 	 "WANGTEK ", "5099ES SCSI",      ""},     PQUIRK_NOLUNS},
832 	{{T_SEQUENTIAL, T_REMOV,
833 	 "WANGTEK ", "5150ES SCSI",      ""},     PQUIRK_NOLUNS},
834 	{{T_SEQUENTIAL, T_REMOV,
835 	 "WANGTEK ", "SCSI-36",		 ""},     PQUIRK_NOLUNS},
836 	{{T_SEQUENTIAL, T_REMOV,
837 	 "WangDAT ", "Model 1300      ", "02.4"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
838 	{{T_SEQUENTIAL, T_REMOV,
839 	 "WangDAT ", "Model 2600      ", "01.7"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
840 	{{T_SEQUENTIAL, T_REMOV,
841 	 "WangDAT ", "Model 3200      ", "02.2"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
842 	{{T_SEQUENTIAL, T_REMOV,
843 	 "TEAC    ", "MT-2ST/N50      ", ""},     PQUIRK_NOLUNS},
844 
845 	{{T_SCANNER, T_FIXED,
846 	 "RICOH   ", "IS60            ", "1R08"}, PQUIRK_NOLUNS},
847 	{{T_SCANNER, T_FIXED,
848 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, PQUIRK_NOLUNS},
849 	{{T_SCANNER, T_FIXED,
850 	 "UMAX    ", "Astra 1220S     ", ""},     PQUIRK_NOLUNS},
851 	{{T_SCANNER, T_FIXED,
852 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, PQUIRK_NOLUNS},
853 	{{T_SCANNER, T_FIXED,
854 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, PQUIRK_NOLUNS},
855 	{{T_SCANNER, T_FIXED,
856 	 "ULTIMA  ", "A6000C          ", ""},     PQUIRK_NOLUNS},
857 	{{T_PROCESSOR, T_FIXED,
858 	 "ESG-SHV",  "SCA HSBP M15",     ""},     PQUIRK_NOLUNS},
859 	{{T_PROCESSOR, T_FIXED,
860 	 "SYMBIOS",  "",                 ""},     PQUIRK_NOLUNS},
861 	{{T_PROCESSOR, T_FIXED,
862 	 "LITRONIC", "PCMCIA          ", ""},     PQUIRK_NOLUNS},
863 	{{T_CHANGER, T_REMOV,
864 	 "SONY    ", "CDL1100         ", ""},     PQUIRK_NOLUNS},
865 	{{T_ENCLOSURE, T_FIXED,
866 	 "SUN     ", "SENA            ", ""},     PQUIRK_NOLUNS},
867 };
868 
869 /*
870  * given a target and lun, ask the device what
871  * it is, and find the correct driver table
872  * entry.
873  */
874 static int
875 scsi_probe_device(struct scsibus_softc *sc, int target, int lun)
876 {
877 	struct scsipi_channel *chan = sc->sc_channel;
878 	struct scsipi_periph *periph;
879 	struct scsipi_inquiry_data inqbuf;
880 	const struct scsi_quirk_inquiry_pattern *finger;
881 	int checkdtype, priority, docontinue, quirks;
882 	struct scsipibus_attach_args sa;
883 	cfdata_t cf;
884 	int locs[SCSIBUSCF_NLOCS];
885 
886 	/*
887 	 * Assume no more LUNs to search after this one.
888 	 * If we successfully get Inquiry data and after
889 	 * merging quirks we find we can probe for more
890 	 * LUNs, we will.
891 	 */
892 	docontinue = 0;
893 
894 	/* Skip this slot if it is already attached. */
895 	if (scsipi_lookup_periph(chan, target, lun) != NULL)
896 		return (docontinue);
897 
898 	periph = scsipi_alloc_periph(M_WAITOK);
899 	periph->periph_channel = chan;
900 	periph->periph_switch = &scsi_probe_dev;
901 
902 	periph->periph_target = target;
903 	periph->periph_lun = lun;
904 	periph->periph_quirks = chan->chan_defquirks;
905 
906 #ifdef SCSIPI_DEBUG
907 	if (SCSIPI_DEBUG_TYPE == SCSIPI_BUSTYPE_SCSI &&
908 	    SCSIPI_DEBUG_TARGET == target &&
909 	    SCSIPI_DEBUG_LUN == lun)
910 		periph->periph_dbflags |= SCSIPI_DEBUG_FLAGS;
911 #endif
912 
913 	/*
914 	 * Ask the device what it is
915 	 */
916 
917 #ifdef SCSI_2_DEF
918 	/* some devices need to be told to go to SCSI2 */
919 	/* However some just explode if you tell them this.. leave it out */
920 	scsi_change_def(periph, XS_CTL_DISCOVERY | XS_CTL_SILENT);
921 #endif /* SCSI_2_DEF */
922 
923 	/* Now go ask the device all about itself. */
924 	memset(&inqbuf, 0, sizeof(inqbuf));
925 	{
926 		u_int8_t *extension = &inqbuf.flags1;
927 		int len = 0;
928 		while (len < 3)
929 			extension[len++] = '\0';
930 		while (len < 3 + 28)
931 			extension[len++] = ' ';
932 		while (len < 3 + 28 + 20)
933 			extension[len++] = '\0';
934 		while (len < 3 + 28 + 20 + 1)
935 			extension[len++] = '\0';
936 		while (len < 3 + 28 + 20 + 1 + 1)
937 			extension[len++] = '\0';
938 		while (len < 3 + 28 + 20 + 1 + 1 + (8*2))
939 			extension[len++] = ' ';
940 	}
941 	if (scsipi_inquire(periph, &inqbuf, XS_CTL_DISCOVERY | XS_CTL_SILENT))
942 		goto bad;
943 
944 	periph->periph_type = inqbuf.device & SID_TYPE;
945 	if (inqbuf.dev_qual2 & SID_REMOVABLE)
946 		periph->periph_flags |= PERIPH_REMOVABLE;
947 	periph->periph_version = inqbuf.version & SID_ANSII;
948 
949 	/*
950 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
951 	 * is vendor specific and won't match in this switch.
952 	 * All we do here is throw out bad/negative responses.
953 	 */
954 	checkdtype = 0;
955 	switch (inqbuf.device & SID_QUAL) {
956 	case SID_QUAL_LU_PRESENT:
957 		checkdtype = 1;
958 		break;
959 
960 	case SID_QUAL_LU_NOTPRESENT:
961 	case SID_QUAL_reserved:
962 	case SID_QUAL_LU_NOT_SUPP:
963 		goto bad;
964 
965 	default:
966 		break;
967 	}
968 
969 	/* Let the adapter driver handle the device separately if it wants. */
970 	if (chan->chan_adapter->adapt_accesschk != NULL &&
971 	    (*chan->chan_adapter->adapt_accesschk)(periph, &sa.sa_inqbuf))
972 		goto bad;
973 
974 	if (checkdtype) {
975 		switch (periph->periph_type) {
976 		case T_DIRECT:
977 		case T_SEQUENTIAL:
978 		case T_PRINTER:
979 		case T_PROCESSOR:
980 		case T_WORM:
981 		case T_CDROM:
982 		case T_SCANNER:
983 		case T_OPTICAL:
984 		case T_CHANGER:
985 		case T_COMM:
986 		case T_IT8_1:
987 		case T_IT8_2:
988 		case T_STORARRAY:
989 		case T_ENCLOSURE:
990 		case T_SIMPLE_DIRECT:
991 		case T_OPTIC_CARD_RW:
992 		case T_OBJECT_STORED:
993 		default:
994 			break;
995 		case T_NODEVICE:
996 			goto bad;
997 		}
998 	}
999 
1000 	sa.sa_periph = periph;
1001 	sa.sa_inqbuf.type = inqbuf.device;
1002 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
1003 	    T_REMOV : T_FIXED;
1004 	sa.sa_inqbuf.vendor = inqbuf.vendor;
1005 	sa.sa_inqbuf.product = inqbuf.product;
1006 	sa.sa_inqbuf.revision = inqbuf.revision;
1007 	sa.scsipi_info.scsi_version = inqbuf.version;
1008 	sa.sa_inqptr = &inqbuf;
1009 
1010 	finger = scsipi_inqmatch(
1011 	    &sa.sa_inqbuf, scsi_quirk_patterns,
1012 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
1013 	    sizeof(scsi_quirk_patterns[0]), &priority);
1014 
1015 	if (finger != NULL)
1016 		quirks = finger->quirks;
1017 	else
1018 		quirks = 0;
1019 
1020 	/*
1021 	 * Determine the operating mode capabilities of the device.
1022 	 */
1023 	if (periph->periph_version >= 2) {
1024 		if ((inqbuf.flags3 & SID_CmdQue) != 0 &&
1025 		    (quirks & PQUIRK_NOTAG) == 0)
1026 			periph->periph_cap |= PERIPH_CAP_TQING;
1027 		if ((inqbuf.flags3 & SID_Linked) != 0)
1028 			periph->periph_cap |= PERIPH_CAP_LINKCMDS;
1029 		if ((inqbuf.flags3 & SID_Sync) != 0 &&
1030 		    (quirks & PQUIRK_NOSYNC) == 0)
1031 			periph->periph_cap |= PERIPH_CAP_SYNC;
1032 		if ((inqbuf.flags3 & SID_WBus16) != 0 &&
1033 		    (quirks & PQUIRK_NOWIDE) == 0)
1034 			periph->periph_cap |= PERIPH_CAP_WIDE16;
1035 		if ((inqbuf.flags3 & SID_WBus32) != 0 &&
1036 		    (quirks & PQUIRK_NOWIDE) == 0)
1037 			periph->periph_cap |= PERIPH_CAP_WIDE32;
1038 		if ((inqbuf.flags3 & SID_SftRe) != 0)
1039 			periph->periph_cap |= PERIPH_CAP_SFTRESET;
1040 		if ((inqbuf.flags3 & SID_RelAdr) != 0)
1041 			periph->periph_cap |= PERIPH_CAP_RELADR;
1042 		/* SPC-2 */
1043 		if (periph->periph_version >= 3 &&
1044 		    !(quirks & PQUIRK_CAP_NODT)){
1045 			/*
1046 			 * Report ST clocking though CAP_WIDExx/CAP_SYNC.
1047 			 * If the device only supports DT, clear these
1048 			 * flags (DT implies SYNC and WIDE)
1049 			 */
1050 			switch (inqbuf.flags4 & SID_Clocking) {
1051 			case SID_CLOCKING_DT_ONLY:
1052 				periph->periph_cap &=
1053 				    ~(PERIPH_CAP_SYNC |
1054 				      PERIPH_CAP_WIDE16 |
1055 				      PERIPH_CAP_WIDE32);
1056 				/* FALLTHROUGH */
1057 			case SID_CLOCKING_SD_DT:
1058 				periph->periph_cap |= PERIPH_CAP_DT;
1059 				break;
1060 			default: /* ST only or invalid */
1061 				/* nothing to do */
1062 				break;
1063 			}
1064 		}
1065 		if (periph->periph_version >= 3) {
1066 			if (inqbuf.flags4 & SID_IUS)
1067 				periph->periph_cap |= PERIPH_CAP_IUS;
1068 			if (inqbuf.flags4 & SID_QAS)
1069 				periph->periph_cap |= PERIPH_CAP_QAS;
1070 		}
1071 	}
1072 	if (quirks & PQUIRK_CAP_SYNC)
1073 		periph->periph_cap |= PERIPH_CAP_SYNC;
1074 	if (quirks & PQUIRK_CAP_WIDE16)
1075 		periph->periph_cap |= PERIPH_CAP_WIDE16;
1076 
1077 	/*
1078 	 * Now apply any quirks from the table.
1079 	 */
1080 	periph->periph_quirks |= quirks;
1081 	if (periph->periph_version == 0 &&
1082 	    (periph->periph_quirks & PQUIRK_FORCELUNS) == 0)
1083 		periph->periph_quirks |= PQUIRK_NOLUNS;
1084 
1085 	if ((periph->periph_quirks & PQUIRK_NOLUNS) == 0)
1086 		docontinue = 1;
1087 
1088 	locs[SCSIBUSCF_TARGET] = target;
1089 	locs[SCSIBUSCF_LUN] = lun;
1090 
1091 	KERNEL_LOCK(1, NULL);
1092 	if ((cf = config_search(sc->sc_dev, &sa,
1093 				CFARGS(.submatch = config_stdsubmatch,
1094 				       .locators = locs))) != NULL) {
1095 		scsipi_insert_periph(chan, periph);
1096 
1097 		/*
1098 		 * Determine supported opcodes and timeouts if available.
1099 		 * Only do this on peripherals reporting SCSI version 3
1100 		 * or greater - this command isn't in the SCSI-2 spec. and
1101 		 * it causes either timeouts or peripherals disappearing
1102 		 * when sent to some SCSI-1 or SCSI-2 peripherals.
1103 		 */
1104 		if (periph->periph_version >= 3)
1105 			scsipi_get_opcodeinfo(periph);
1106 
1107 		/*
1108 		 * XXX Can't assign periph_dev here, because we'll
1109 		 * XXX need it before config_attach() returns.  Must
1110 		 * XXX assign it in periph driver.
1111 		 */
1112 		config_attach(sc->sc_dev, cf, &sa, scsibusprint,
1113 		    CFARGS(.locators = locs));
1114 		KERNEL_UNLOCK_ONE(NULL);
1115 	} else {
1116 		scsibusprint(&sa, device_xname(sc->sc_dev));
1117 		aprint_normal(" not configured\n");
1118 		KERNEL_UNLOCK_ONE(NULL);
1119 		goto bad;
1120 	}
1121 
1122 	return (docontinue);
1123 
1124 bad:
1125 	scsipi_free_periph(periph);
1126 	return (docontinue);
1127 }
1128 
1129 /****** Entry points for user control of the SCSI bus. ******/
1130 
1131 static int
1132 scsibusopen(dev_t dev, int flag, int fmt,
1133     struct lwp *l)
1134 {
1135 	struct scsibus_softc *sc;
1136 	int error, unit = minor(dev);
1137 
1138 	sc = device_lookup_private(&scsibus_cd, unit);
1139 	if (sc == NULL)
1140 		return (ENXIO);
1141 
1142 	if (sc->sc_flags & SCSIBUSF_OPEN)
1143 		return (EBUSY);
1144 
1145 	if ((error = scsipi_adapter_addref(sc->sc_channel->chan_adapter)) != 0)
1146 		return (error);
1147 
1148 	sc->sc_flags |= SCSIBUSF_OPEN;
1149 
1150 	return (0);
1151 }
1152 
1153 static int
1154 scsibusclose(dev_t dev, int flag, int fmt,
1155     struct lwp *l)
1156 {
1157 	struct scsibus_softc *sc;
1158 
1159 	sc = device_lookup_private(&scsibus_cd, minor(dev));
1160 	scsipi_adapter_delref(sc->sc_channel->chan_adapter);
1161 
1162 	sc->sc_flags &= ~SCSIBUSF_OPEN;
1163 
1164 	return (0);
1165 }
1166 
1167 static int
1168 scsibusioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
1169 {
1170 	struct scsibus_softc *sc;
1171 	struct scsipi_channel *chan;
1172 	int error;
1173 
1174 	sc = device_lookup_private(&scsibus_cd, minor(dev));
1175 	chan = sc->sc_channel;
1176 
1177 	/*
1178 	 * Enforce write permission for ioctls that change the
1179 	 * state of the bus.  Host adapter specific ioctls must
1180 	 * be checked by the adapter driver.
1181 	 */
1182 	switch (cmd) {
1183 	case SCBUSIOSCAN:
1184 	case SCBUSIODETACH:
1185 	case SCBUSIORESET:
1186 		if ((flag & FWRITE) == 0)
1187 			return (EBADF);
1188 	}
1189 
1190 	switch (cmd) {
1191 	case SCBUSIOSCAN:
1192 	    {
1193 		struct scbusioscan_args *a =
1194 		    (struct scbusioscan_args *)addr;
1195 
1196 		error = scsi_probe_bus(sc, a->sa_target, a->sa_lun);
1197 		break;
1198 	    }
1199 
1200 	case SCBUSIODETACH:
1201 	    {
1202 		struct scbusiodetach_args *a =
1203 		    (struct scbusiodetach_args *)addr;
1204 
1205 		error = scsipi_target_detach(chan, a->sa_target, a->sa_lun, 0);
1206 		break;
1207 	    }
1208 
1209 
1210 	case SCBUSIORESET:
1211 		/* FALLTHROUGH */
1212 	default:
1213 		error = scsipi_adapter_ioctl(chan, cmd, addr, flag, l->l_proc);
1214 		break;
1215 	}
1216 
1217 	return (error);
1218 }
1219