xref: /netbsd-src/sys/dev/scsipi/scsiconf.c (revision e4d7c2e329d54c97e0c0bd3016bbe74f550c3d5e)
1 /*	$NetBSD: scsiconf.c,v 1.134 2000/01/20 17:10:18 mjacob Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998 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  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *        This product includes software developed by the NetBSD
22  *        Foundation, Inc. and its contributors.
23  * 4. Neither the name of The NetBSD Foundation nor the names of its
24  *    contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 
40 /*
41  * Originally written by Julian Elischer (julian@tfs.com)
42  * for TRW Financial Systems for use under the MACH(2.5) operating system.
43  *
44  * TRW Financial Systems, in accordance with their agreement with Carnegie
45  * Mellon University, makes this software available to CMU to distribute
46  * or use in any manner that they see fit as long as this message is kept with
47  * the software. For this reason TFS also grants any other persons or
48  * organisations permission to use or modify this software.
49  *
50  * TFS supplies this software to be publicly redistributed
51  * on the understanding that TFS is not responsible for the correct
52  * functioning of this software in any circumstances.
53  *
54  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
55  */
56 
57 #include <sys/types.h>
58 #include <sys/param.h>
59 #include <sys/systm.h>
60 #include <sys/kernel.h>
61 #include <sys/proc.h>
62 #include <sys/malloc.h>
63 #include <sys/device.h>
64 #include <sys/conf.h>
65 #include <sys/fcntl.h>
66 #include <sys/scsiio.h>
67 
68 #include <dev/scsipi/scsi_all.h>
69 #include <dev/scsipi/scsipi_all.h>
70 #include <dev/scsipi/scsiconf.h>
71 
72 #include "locators.h"
73 
74 #if 0
75 #if NCALS > 0
76 	{ T_PROCESSOR, T_FIXED, 1,
77 	  0, 0, 0 },
78 #endif	/* NCALS */
79 #if NBLL > 0
80 	{ T_PROCESSOR, T_FIXED, 1,
81 	  "AEG     ", "READER          ", "V1.0" },
82 #endif	/* NBLL */
83 #if NKIL > 0
84 	{ T_SCANNER, T_FIXED, 0,
85 	  "KODAK   ", "IL Scanner 900  ", 0 },
86 #endif	/* NKIL */
87 #endif
88 
89 /*
90  * Declarations
91  */
92 int scsi_probedev __P((struct scsibus_softc *, int, int));
93 int scsi_probe_bus __P((int bus, int target, int lun));
94 
95 struct scsipi_device probe_switch = {
96 	NULL,
97 	NULL,
98 	NULL,
99 	NULL,
100 };
101 
102 int scsibusmatch __P((struct device *, struct cfdata *, void *));
103 void scsibusattach __P((struct device *, struct device *, void *));
104 int scsibusactivate __P((struct device *, enum devact));
105 int scsibusdetach __P((struct device *, int flags));
106 
107 int scsibussubmatch __P((struct device *, struct cfdata *, void *));
108 
109 struct cfattach scsibus_ca = {
110 	sizeof(struct scsibus_softc), scsibusmatch, scsibusattach,
111 	    scsibusdetach, scsibusactivate,
112 };
113 
114 extern struct cfdriver scsibus_cd;
115 
116 int scsibusprint __P((void *, const char *));
117 void scsibus_config_interrupts __P((struct device *));
118 
119 cdev_decl(scsibus);
120 
121 int
122 scsiprint(aux, pnp)
123 	void *aux;
124 	const char *pnp;
125 {
126 	struct scsipi_link *l = aux;
127 
128 	/* only "scsibus"es can attach to "scsi"s; easy. */
129 	if (pnp)
130 		printf("scsibus at %s", pnp);
131 
132 	/* don't print channel if the controller says there can be only one. */
133 	if (l->scsipi_scsi.channel != SCSI_CHANNEL_ONLY_ONE)
134 		printf(" channel %d", l->scsipi_scsi.channel);
135 
136 	return (UNCONF);
137 }
138 
139 int
140 scsibusmatch(parent, cf, aux)
141 	struct device *parent;
142 	struct cfdata *cf;
143 	void *aux;
144 {
145 	struct scsipi_link *l = aux;
146 	int channel;
147 
148 	/*
149 	 * Allow single-channel controllers to specify their channel
150 	 * in a special way, so that it's not printed.
151 	 */
152 	channel = (l->scsipi_scsi.channel != SCSI_CHANNEL_ONLY_ONE) ?
153 	    l->scsipi_scsi.channel : 0;
154 
155 	if (cf->cf_loc[SCSICF_CHANNEL] != channel &&
156 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
157 		return (0);
158 
159 	return (1);
160 }
161 
162 /*
163  * The routine called by the adapter boards to get all their
164  * devices configured in.
165  */
166 void
167 scsibusattach(parent, self, aux)
168 	struct device *parent, *self;
169 	void *aux;
170 {
171 	struct scsibus_softc *sb = (struct scsibus_softc *)self;
172 	struct scsipi_link *sc_link_proto = aux;
173 	size_t nbytes;
174 	int i;
175 
176 	sc_link_proto->scsipi_scsi.scsibus = sb->sc_dev.dv_unit;
177 	sc_link_proto->scsipi_cmd = scsi_scsipi_cmd;
178 	sc_link_proto->scsipi_interpret_sense = scsipi_interpret_sense;
179 	sc_link_proto->sc_print_addr = scsi_print_addr;
180 	sc_link_proto->scsipi_kill_pending = scsi_kill_pending;
181 
182 	sb->adapter_link = sc_link_proto;
183 	sb->sc_maxtarget = sc_link_proto->scsipi_scsi.max_target;
184 	sb->sc_maxlun = sc_link_proto->scsipi_scsi.max_lun;
185 	printf(": %d targets, %d luns per target\n",
186 	    sb->sc_maxtarget + 1, sb->sc_maxlun + 1);
187 
188 	/* Initialize shared data. */
189 	scsipi_init();
190 
191 	nbytes = (sb->sc_maxtarget + 1) * sizeof(struct scsipi_link **);
192 	sb->sc_link = (struct scsipi_link ***)malloc(nbytes, M_DEVBUF,
193 	    M_NOWAIT);
194 	if (sb->sc_link == NULL)
195 		panic("scsibusattach: can't allocate target links");
196 
197 	nbytes = (((int) sb->sc_maxlun) + 1) * sizeof(struct scsipi_link *);
198 	for (i = 0; i <= sb->sc_maxtarget; i++) {
199 		sb->sc_link[i] = (struct scsipi_link **)malloc(nbytes,
200 		    M_DEVBUF, M_NOWAIT);
201 		if (sb->sc_link[i] == NULL)
202 			panic("scsibusattach: can't allocate lun links");
203 		bzero(sb->sc_link[i], nbytes);
204 	}
205 
206 	/*
207 	 * Defer configuration of the children until interrupts
208 	 * are enabled.
209 	 */
210 	config_interrupts(self, scsibus_config_interrupts);
211 }
212 
213 void
214 scsibus_config_interrupts(self)
215 	struct device *self;
216 {
217 #ifndef SCSI_DELAY
218 #define SCSI_DELAY 2
219 #endif
220 	if (SCSI_DELAY > 0) {
221 		printf("%s: waiting %d seconds for devices to settle...\n",
222 		    self->dv_xname, SCSI_DELAY);
223 		/* ...an identifier we know no one will use... */
224 		(void) tsleep(scsibus_config_interrupts, PRIBIO,
225 		    "scsidly", SCSI_DELAY * hz);
226 	}
227 
228 	scsi_probe_bus(self->dv_unit, -1, -1);
229 }
230 
231 int
232 scsibussubmatch(parent, cf, aux)
233 	struct device *parent;
234 	struct cfdata *cf;
235 	void *aux;
236 {
237 	struct scsipibus_attach_args *sa = aux;
238 	struct scsipi_link *sc_link = sa->sa_sc_link;
239 
240 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
241 	    cf->cf_loc[SCSIBUSCF_TARGET] != sc_link->scsipi_scsi.target)
242 		return (0);
243 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
244 	    cf->cf_loc[SCSIBUSCF_LUN] != sc_link->scsipi_scsi.lun)
245 		return (0);
246 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
247 }
248 
249 int
250 scsibusactivate(self, act)
251 	struct device *self;
252 	enum devact act;
253 {
254 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
255 	struct scsipi_link *sc_link;
256 	int target, lun, error = 0, s;
257 
258 	s = splbio();
259 	switch (act) {
260 	case DVACT_ACTIVATE:
261 		error = EOPNOTSUPP;
262 		break;
263 
264 	case DVACT_DEACTIVATE:
265 		for (target = 0; target <= sc->sc_maxtarget; target++) {
266 			if (target ==
267 			    sc->adapter_link->scsipi_scsi.adapter_target)
268 				continue;
269 			for (lun = 0; lun <= sc->sc_maxlun; lun++) {
270 				sc_link = sc->sc_link[target][lun];
271 				if (sc_link == NULL)
272 					continue;
273 				error =
274 				    config_deactivate(sc_link->device_softc);
275 				if (error)
276 					goto out;
277 			}
278 		}
279 		break;
280 	}
281  out:
282 	splx(s);
283 	return (error);
284 }
285 
286 int
287 scsibusdetach(self, flags)
288 	struct device *self;
289 	int flags;
290 {
291 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
292 	struct scsipi_link *sc_link;
293 	int target, lun, error;
294 
295 	for (target = 0; target <= sc->sc_maxtarget; target++) {
296 		if (target == sc->adapter_link->scsipi_scsi.adapter_target)
297 			continue;
298 		for (lun = 0; lun <= sc->sc_maxlun; lun++) {
299 			sc_link = sc->sc_link[target][lun];
300 			if (sc_link == NULL)
301 				continue;
302 			error = config_detach(sc_link->device_softc, flags);
303 			if (error)
304 				return (error);
305 			free(sc_link, M_DEVBUF);
306 			sc->sc_link[target][lun] = NULL;
307 		}
308 	}
309 	return (0);
310 }
311 
312 /*
313  * Probe the requested scsi bus. It must be already set up.
314  * -1 requests all set up scsi busses.
315  * target and lun optionally narrow the search if not -1
316  */
317 int
318 scsi_probe_busses(bus, target, lun)
319 	int bus, target, lun;
320 {
321 
322 	if (bus == -1) {
323 		for (bus = 0; bus < scsibus_cd.cd_ndevs; bus++)
324 			if (scsibus_cd.cd_devs[bus])
325 				scsi_probe_bus(bus, target, lun);
326 		return (0);
327 	} else
328 		return (scsi_probe_bus(bus, target, lun));
329 }
330 
331 /*
332  * Probe the requested scsi bus. It must be already set up.
333  * target and lun optionally narrow the search if not -1
334  */
335 int
336 scsi_probe_bus(bus, target, lun)
337 	int bus, target, lun;
338 {
339 	struct scsibus_softc *scsi;
340 	int maxtarget, mintarget, maxlun, minlun;
341 	u_int8_t scsi_addr;
342 	int error;
343 
344 	if (bus < 0 || bus >= scsibus_cd.cd_ndevs)
345 		return (ENXIO);
346 	scsi = scsibus_cd.cd_devs[bus];
347 	if (scsi == NULL)
348 		return (ENXIO);
349 
350 	scsi_addr = scsi->adapter_link->scsipi_scsi.adapter_target;
351 
352 	if (target == -1) {
353 		maxtarget = scsi->sc_maxtarget;
354 		mintarget = 0;
355 	} else {
356 		if (target < 0 || target > scsi->sc_maxtarget)
357 			return (EINVAL);
358 		maxtarget = mintarget = target;
359 	}
360 
361 	if (lun == -1) {
362 		maxlun = scsi->sc_maxlun;
363 		minlun = 0;
364 	} else {
365 		if (lun < 0 || lun > scsi->sc_maxlun)
366 			return (EINVAL);
367 		maxlun = minlun = lun;
368 	}
369 
370 	if ((error = scsipi_adapter_addref(scsi->adapter_link)) != 0)
371 		return (error);
372 	for (target = mintarget; target <= maxtarget; target++) {
373 		if (target == scsi_addr)
374 			continue;
375 		for (lun = minlun; lun <= maxlun; lun++) {
376 			/*
377 			 * See if there's a device present, and configure it.
378 			 */
379 			if (scsi_probedev(scsi, target, lun) == 0) {
380 				break;
381 			}
382 			/* otherwise something says we should look further */
383 		}
384 	}
385 	scsipi_adapter_delref(scsi->adapter_link);
386 	return (0);
387 }
388 
389 /*
390  * Print out autoconfiguration information for a subdevice.
391  *
392  * This is a slight abuse of 'standard' autoconfiguration semantics,
393  * because 'print' functions don't normally print the colon and
394  * device information.  However, in this case that's better than
395  * either printing redundant information before the attach message,
396  * or having the device driver call a special function to print out
397  * the standard device information.
398  */
399 int
400 scsibusprint(aux, pnp)
401 	void *aux;
402 	const char *pnp;
403 {
404 	struct scsipibus_attach_args *sa = aux;
405 	struct scsipi_inquiry_pattern *inqbuf;
406 	u_int8_t type;
407 	char *dtype, *qtype;
408 	char vendor[33], product[65], revision[17];
409 	int target, lun;
410 
411 	if (pnp != NULL)
412 		printf("%s", pnp);
413 
414 	inqbuf = &sa->sa_inqbuf;
415 
416 	target = sa->sa_sc_link->scsipi_scsi.target;
417 	lun = sa->sa_sc_link->scsipi_scsi.lun;
418 
419 	type = inqbuf->type & SID_TYPE;
420 
421 	/*
422 	 * Figure out basic device type and qualifier.
423 	 */
424 	dtype = 0;
425 	switch (inqbuf->type & SID_QUAL) {
426 	case SID_QUAL_LU_OK:
427 		qtype = "";
428 		break;
429 
430 	case SID_QUAL_LU_OFFLINE:
431 		qtype = " offline";
432 		break;
433 
434 	case SID_QUAL_RSVD:
435 	case SID_QUAL_BAD_LU:
436 		panic("scsibusprint: impossible qualifier");
437 
438 	default:
439 		qtype = "";
440 		dtype = "vendor-unique";
441 		break;
442 	}
443 	if (dtype == 0)
444 		dtype = scsipi_dtype(type);
445 
446 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
447 	scsipi_strvis(product, 65, inqbuf->product, 16);
448 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
449 
450 	printf(" targ %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
451 	    target, lun, vendor, product, revision,
452 	    sa->scsipi_info.scsi_version & SID_ANSII, type, dtype,
453 	    inqbuf->removable ? "removable" : "fixed", qtype);
454 
455 	return (UNCONF);
456 }
457 
458 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
459 	{{T_CDROM, T_REMOV,
460 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     SDEV_NOLUNS},
461 	{{T_CDROM, T_REMOV,
462 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     SDEV_NOLUNS},
463 	{{T_CDROM, T_REMOV,
464 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     SDEV_NOLUNS},
465 	{{T_CDROM, T_REMOV,
466 	 "DEC     ", "RRD42   (C) DEC ", ""},     SDEV_NOLUNS},
467 	{{T_CDROM, T_REMOV,
468 	 "DENON   ", "DRD-25X         ", "V"},    SDEV_NOLUNS},
469 	{{T_CDROM, T_REMOV,
470 	 "HP      ", "C4324/C4325     ", ""},     SDEV_NOLUNS},
471 	{{T_CDROM, T_REMOV,
472 	 "IMS     ", "CDD521/10       ", "2.06"}, SDEV_NOLUNS},
473 	{{T_CDROM, T_REMOV,
474 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, SDEV_NOLUNS},
475 	{{T_CDROM, T_REMOV,
476 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     SDEV_NOLUNS},
477 	{{T_CDROM, T_REMOV,
478 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  SDEV_NOLUNS},
479 	{{T_CDROM, T_REMOV,
480 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     SDEV_NOLUNS},
481 	{{T_CDROM, T_REMOV,
482 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     SDEV_NOLUNS},
483 	{{T_CDROM, T_REMOV,
484 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     SDEV_NOLUNS},
485 	{{T_CDROM, T_REMOV,
486 	 "NEC     ", "CD-ROM DRIVE:841", ""},     SDEV_NOLUNS},
487 	{{T_CDROM, T_REMOV,
488 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, SDEV_NOLUNS},
489 	{{T_CDROM, T_REMOV,
490 	 "SONY    ", "CD-ROM CDU-541  ", ""},     SDEV_NOLUNS},
491 	{{T_CDROM, T_REMOV,
492 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     SDEV_NOLUNS},
493 	{{T_CDROM, T_REMOV,
494 	 "SONY    ", "CD-ROM CDU-561  ", ""},     SDEV_NOLUNS},
495 	{{T_CDROM, T_REMOV,
496 	 "SONY    ", "CD-ROM CDU-8003A", ""},     SDEV_NOLUNS},
497 	{{T_CDROM, T_REMOV,
498 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     SDEV_NOLUNS},
499 	{{T_CDROM, T_REMOV,
500 	 "TEAC    ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
501 	{{T_CDROM, T_REMOV,
502 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, SDEV_NOLUNS},
503 	{{T_CDROM, T_REMOV,
504 	 "TEXEL   ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
505 	{{T_CDROM, T_REMOV,
506 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, SDEV_NOLUNS},
507 	{{T_CDROM, T_REMOV,
508 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS},
509 	{{T_CDROM, T_REMOV,
510 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, SDEV_NOLUNS},
511 	{{T_CDROM, T_REMOV,
512 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"}, SDEV_NOLUNS},
513 	{{T_CDROM, T_REMOV,
514 	 "JVC     ", "R2626",            ""},     SDEV_NOLUNS},
515 	{{T_DIRECT, T_FIXED,
516 	 "MICROP  ", "1588-15MBSUN0669", ""},     SDEV_AUTOSAVE},
517 	{{T_DIRECT, T_FIXED,
518 	 "MICROP  ", "2217-15MQ1091501", ""},     SDEV_NOSYNCCACHE},
519 	{{T_OPTICAL, T_REMOV,
520 	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
521 
522 	{{T_DIRECT, T_FIXED,
523 	"TOSHIBA ", "CD-ROM XM-3401TA", "0283"}, ADEV_CDROM|SDEV_NOLUNS},
524 	{{T_DIRECT, T_FIXED,
525 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, SDEV_NOMODESENSE},
526 	{{T_DIRECT, T_FIXED,
527 	 "DEC     ", "RZ55     (C) DEC", ""},     SDEV_AUTOSAVE},
528 	{{T_DIRECT, T_FIXED,
529 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  SDEV_FORCELUNS|SDEV_AUTOSAVE},
530 	/* Gives non-media hardware failure in response to start-unit command */
531 	{{T_DIRECT, T_FIXED,
532 	 "HITACHI", "DK515C",		"CP16"},  SDEV_NOSTARTUNIT},
533 	{{T_DIRECT, T_FIXED,
534 	 "HITACHI", "DK515C",		"CP15"},  SDEV_NOSTARTUNIT},
535 	{{T_DIRECT, T_FIXED,
536 	 "HP      ", "C372",             ""},     SDEV_NOTAG},
537 	{{T_DIRECT, T_FIXED,
538 	 "IBMRAID ", "0662S",		 ""},     SDEV_AUTOSAVE},
539 	{{T_DIRECT, T_FIXED,
540 	 "IBM     ", "0663H",		 ""},     SDEV_AUTOSAVE},
541 	{{T_DIRECT, T_FIXED,
542 	 "IBM",	     "0664",		 ""},     SDEV_AUTOSAVE},
543 	{{T_DIRECT, T_FIXED,
544 	 "IBM     ", "H3171-S2",	 ""},	  SDEV_NOLUNS|SDEV_AUTOSAVE},
545 	{{T_DIRECT, T_FIXED,
546 	 "IBM     ", "KZ-C",		 ""},	  SDEV_AUTOSAVE},
547 	/* Broken IBM disk */
548 	{{T_DIRECT, T_FIXED,
549 	 ""	   , "DFRSS2F",		 ""},	  SDEV_AUTOSAVE},
550 	{{T_DIRECT, T_REMOV,
551 	 "MPL     ", "MC-DISK-        ", ""},     SDEV_NOLUNS},
552 	{{T_DIRECT, T_FIXED,
553 	 "MAXTOR  ", "XT-3280         ", ""},     SDEV_NOLUNS},
554 	{{T_DIRECT, T_FIXED,
555 	 "MAXTOR  ", "XT-4380S        ", ""},     SDEV_NOLUNS},
556 	{{T_DIRECT, T_FIXED,
557 	 "MAXTOR  ", "MXT-1240S       ", ""},     SDEV_NOLUNS},
558 	{{T_DIRECT, T_FIXED,
559 	 "MAXTOR  ", "XT-4170S        ", ""},     SDEV_NOLUNS},
560 	{{T_DIRECT, T_FIXED,
561 	 "MAXTOR  ", "XT-8760S",         ""},     SDEV_NOLUNS},
562 	{{T_DIRECT, T_FIXED,
563 	 "MAXTOR  ", "LXT-213S        ", ""},     SDEV_NOLUNS},
564 	{{T_DIRECT, T_FIXED,
565 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     SDEV_NOLUNS},
566 	{{T_DIRECT, T_FIXED,
567 	 "MAXTOR  ", "LXT-200S        ", ""},     SDEV_NOLUNS},
568 	{{T_DIRECT, T_FIXED,
569 	 "MEGADRV ", "EV1000",           ""},     SDEV_NOMODESENSE},
570 	{{T_DIRECT, T_FIXED,
571 	 "MST     ", "SnapLink        ", ""},     SDEV_NOLUNS},
572 	{{T_DIRECT, T_FIXED,
573 	 "NEC     ", "D3847           ", "0307"}, SDEV_NOLUNS},
574 	{{T_DIRECT, T_FIXED,
575 	 "QUANTUM ", "ELS85S          ", ""},     SDEV_AUTOSAVE},
576 	{{T_DIRECT, T_FIXED,
577 	 "QUANTUM ", "LPS525S         ", ""},     SDEV_NOLUNS},
578 	{{T_DIRECT, T_FIXED,
579 	 "QUANTUM ", "P105S 910-10-94x", ""},     SDEV_NOLUNS},
580 	{{T_DIRECT, T_FIXED,
581 	 "QUANTUM ", "PD1225S         ", ""},     SDEV_NOLUNS},
582 	{{T_DIRECT, T_FIXED,
583 	 "QUANTUM ", "PD210S   SUN0207", ""},     SDEV_NOLUNS},
584 	{{T_DIRECT, T_FIXED,
585 	 "RODIME  ", "RO3000S         ", ""},     SDEV_NOLUNS},
586 	{{T_DIRECT, T_FIXED,
587 	 "SEAGATE ", "ST125N          ", ""},     SDEV_NOLUNS},
588 	{{T_DIRECT, T_FIXED,
589 	 "SEAGATE ", "ST157N          ", ""},     SDEV_NOLUNS},
590 	{{T_DIRECT, T_FIXED,
591 	 "SEAGATE ", "ST296           ", ""},     SDEV_NOLUNS},
592 	{{T_DIRECT, T_FIXED,
593 	 "SEAGATE ", "ST296N          ", ""},     SDEV_NOLUNS},
594 	{{T_DIRECT, T_FIXED,
595 	 "SEAGATE ", "ST19171",          ""},     SDEV_NOMODESENSE},
596 	{{T_DIRECT, T_FIXED,
597 	 "SEAGATE ", "ST34501FC       ", ""},     SDEV_NOMODESENSE},
598 	{{T_DIRECT, T_FIXED,
599 	 "TOSHIBA ", "MK538FB         ", "6027"}, SDEV_NOLUNS},
600 	{{T_DIRECT, T_REMOV,
601 	 "iomega", "jaz 1GB", 		 ""},	  SDEV_NOMODESENSE},
602 	{{T_DIRECT, T_REMOV,
603 	 "IOMEGA", "ZIP 100",		 ""},	  SDEV_NOMODESENSE},
604 	{{T_DIRECT, T_REMOV,
605 	 "IOMEGA", "ZIP 100",		 "J.03"}, SDEV_NOMODESENSE|SDEV_NOLUNS},
606 	/* Letting the motor run kills floppy drives and disks quite fast. */
607 	{{T_DIRECT, T_REMOV,
608 	 "TEAC", "FC-1",		 ""},	  SDEV_NOSTARTUNIT},
609 
610 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
611 	{{T_SEQUENTIAL, T_REMOV,
612 	 "        ", "                ", "    "}, SDEV_NOLUNS},
613 	{{T_SEQUENTIAL, T_REMOV,
614 	 "CALIPER ", "CP150           ", ""},     SDEV_NOLUNS},
615 	{{T_SEQUENTIAL, T_REMOV,
616 	 "EXABYTE ", "EXB-8200        ", ""},     SDEV_NOLUNS},
617 	{{T_SEQUENTIAL, T_REMOV,
618 	 "SONY    ", "GY-10C          ", ""},     SDEV_NOLUNS},
619 	{{T_SEQUENTIAL, T_REMOV,
620 	 "SONY    ", "SDT-2000        ", "2.09"}, SDEV_NOLUNS},
621 	{{T_SEQUENTIAL, T_REMOV,
622 	 "SONY    ", "SDT-5000        ", "3."},   SDEV_NOSYNC|SDEV_NOWIDE},
623 	{{T_SEQUENTIAL, T_REMOV,
624 	 "SONY    ", "SDT-5200        ", "3."},   SDEV_NOLUNS},
625 	{{T_SEQUENTIAL, T_REMOV,
626 	 "TANDBERG", " TDC 3600       ", ""},     SDEV_NOLUNS},
627 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
628 	{{T_SEQUENTIAL, T_REMOV,
629 	 "ARCHIVE ", "VIPER 150  21247", ""},     SDEV_NOLUNS},
630 	/* Following entry for a Cipher ST150S; ref. PR4171 */
631 	{{T_SEQUENTIAL, T_REMOV,
632 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, SDEV_NOLUNS},
633 	{{T_SEQUENTIAL, T_REMOV,
634 	 "ARCHIVE ", "Python 28454-XXX", ""},     SDEV_NOLUNS},
635 	{{T_SEQUENTIAL, T_REMOV,
636 	 "WANGTEK ", "5099ES SCSI",      ""},     SDEV_NOLUNS},
637 	{{T_SEQUENTIAL, T_REMOV,
638 	 "WANGTEK ", "5150ES SCSI",      ""},     SDEV_NOLUNS},
639 	{{T_SEQUENTIAL, T_REMOV,
640 	 "WANGTEK ", "SCSI-36",		 ""},     SDEV_NOLUNS},
641 	{{T_SEQUENTIAL, T_REMOV,
642 	 "WangDAT ", "Model 1300      ", "02.4"}, SDEV_NOSYNC|SDEV_NOWIDE},
643 	{{T_SEQUENTIAL, T_REMOV,
644 	 "WangDAT ", "Model 2600      ", "01.7"}, SDEV_NOSYNC|SDEV_NOWIDE},
645 	{{T_SEQUENTIAL, T_REMOV,
646 	 "WangDAT ", "Model 3200      ", "02.2"}, SDEV_NOSYNC|SDEV_NOWIDE},
647 	{{T_SEQUENTIAL, T_REMOV,
648 	 "TEAC    ", "MT-2ST/N50      ", ""},     SDEV_NOLUNS},
649 
650 	{{T_SCANNER, T_FIXED,
651 	 "RICOH   ", "IS60            ", "1R08"}, SDEV_NOLUNS},
652 	{{T_SCANNER, T_FIXED,
653 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, SDEV_NOLUNS},
654 	{{T_SCANNER, T_FIXED,
655 	 "UMAX    ", "Astra 1220S     ", ""}, SDEV_NOLUNS},
656 	{{T_SCANNER, T_FIXED,
657 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, SDEV_NOLUNS},
658 	{{T_SCANNER, T_FIXED,
659 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, SDEV_NOLUNS},
660 
661 	{{T_PROCESSOR, T_FIXED,
662 	 "LITRONIC", "PCMCIA          ", ""},     SDEV_NOLUNS},
663 
664 	{{T_CHANGER, T_REMOV,
665 	 "SONY    ", "CDL1100         ", ""},     SDEV_NOLUNS},
666 
667 	{{T_ENCLOSURE, T_FIXED,
668 	 "SUN     ", "SENA            ", ""},     SDEV_NOLUNS},
669 };
670 
671 /*
672  * given a target and lun, ask the device what
673  * it is, and find the correct driver table
674  * entry.
675  */
676 int
677 scsi_probedev(scsi, target, lun)
678 	struct scsibus_softc *scsi;
679 	int target, lun;
680 {
681 	struct scsipi_link *sc_link;
682 	static struct scsipi_inquiry_data inqbuf;
683 	struct scsi_quirk_inquiry_pattern *finger;
684 	int checkdtype, priority, docontinue;
685 	struct scsipibus_attach_args sa;
686 	struct cfdata *cf;
687 
688 	/*
689 	 * Assume no more luns to search after this one.
690 	 * If we successfully get Inquiry data and after
691 	 * merging quirks we find we can probe for more
692 	 * luns, we will.
693 	 */
694 	docontinue = 0;
695 
696 	/* Skip this slot if it is already attached. */
697 	if (scsi->sc_link[target][lun] != NULL)
698 		return (docontinue);
699 
700 	sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT);
701 	*sc_link = *scsi->adapter_link;
702 	sc_link->active = 0;
703 	sc_link->scsipi_scsi.target = target;
704 	sc_link->scsipi_scsi.lun = lun;
705 	sc_link->device = &probe_switch;
706 	TAILQ_INIT(&sc_link->pending_xfers);
707 
708 	/*
709 	 * Ask the device what it is
710 	 */
711 #if defined(SCSIDEBUG) && DEBUGTYPE == BUS_SCSI
712 	if (target == DEBUGTARGET && lun == DEBUGLUN)
713 		sc_link->flags |= DEBUGLEVEL;
714 #endif /* SCSIDEBUG */
715 
716 	(void) scsipi_test_unit_ready(sc_link,
717 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
718 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
719 
720 #ifdef SCSI_2_DEF
721 	/* some devices need to be told to go to SCSI2 */
722 	/* However some just explode if you tell them this.. leave it out */
723 	scsi_change_def(sc_link, XS_CTL_DISCOVERY | XS_CTL_SILENT);
724 #endif /* SCSI_2_DEF */
725 
726 	/* Now go ask the device all about itself. */
727 	bzero(&inqbuf, sizeof(inqbuf));
728 	if (scsipi_inquire(sc_link, &inqbuf, XS_CTL_DISCOVERY) != 0)
729 		goto bad;
730 
731 	{
732 		int len = inqbuf.additional_length;
733 		while (len < 3)
734 			inqbuf.unused[len++] = '\0';
735 		while (len < 3 + 28)
736 			inqbuf.unused[len++] = ' ';
737 	}
738 
739 	sa.sa_sc_link = sc_link;
740 	sa.sa_inqbuf.type = inqbuf.device;
741 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
742 	    T_REMOV : T_FIXED;
743 	sa.sa_inqbuf.vendor = inqbuf.vendor;
744 	sa.sa_inqbuf.product = inqbuf.product;
745 	sa.sa_inqbuf.revision = inqbuf.revision;
746 	sa.scsipi_info.scsi_version = inqbuf.version;
747 	sa.sa_inqptr = &inqbuf;
748 
749 	finger = (struct scsi_quirk_inquiry_pattern *)scsipi_inqmatch(
750 	    &sa.sa_inqbuf, (caddr_t)scsi_quirk_patterns,
751 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
752 	    sizeof(scsi_quirk_patterns[0]), &priority);
753 
754 	/*
755 	 * Based upon the inquiry flags we got back, and if we're
756 	 * at SCSI-2 or better, set some limiting quirks.
757 	 */
758 	if ((inqbuf.version & SID_ANSII) >= 2) {
759 		if ((inqbuf.flags & SID_CmdQue) == 0)
760 			sc_link->quirks |= SDEV_NOTAG;
761 		if ((inqbuf.flags & SID_Sync) == 0)
762 			sc_link->quirks |= SDEV_NOSYNC;
763 		if ((inqbuf.flags & SID_WBus16) == 0)
764 			sc_link->quirks |= SDEV_NOWIDE;
765 	}
766 	/*
767 	 * Now apply any quirks from the table.
768 	 */
769 	if (priority != 0)
770 		sc_link->quirks |= finger->quirks;
771 	if ((inqbuf.version & SID_ANSII) == 0 &&
772 	    (sc_link->quirks & SDEV_FORCELUNS) == 0)
773 		sc_link->quirks |= SDEV_NOLUNS;
774 	sc_link->scsipi_scsi.scsi_version = inqbuf.version;
775 
776 	if ((sc_link->quirks & SDEV_NOLUNS) == 0)
777 		docontinue = 1;
778 
779 	/*
780 	 * note what BASIC type of device it is
781 	 */
782 	if ((inqbuf.dev_qual2 & SID_REMOVABLE) != 0)
783 		sc_link->flags |= SDEV_REMOVABLE;
784 
785 	/*
786 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
787 	 * is vendor specific and won't match in this switch.
788 	 * All we do here is throw out bad/negative responses.
789 	 */
790 	checkdtype = 0;
791 	switch (inqbuf.device & SID_QUAL) {
792 	case SID_QUAL_LU_OK:
793 	case SID_QUAL_LU_OFFLINE:
794 		checkdtype = 1;
795 		break;
796 
797 	case SID_QUAL_RSVD:
798 	case SID_QUAL_BAD_LU:
799 		goto bad;
800 
801 	default:
802 		break;
803 	}
804 	if (checkdtype)
805 		switch (inqbuf.device & SID_TYPE) {
806 		case T_DIRECT:
807 		case T_SEQUENTIAL:
808 		case T_PRINTER:
809 		case T_PROCESSOR:
810 		case T_WORM:
811 		case T_CDROM:
812 		case T_SCANNER:
813 		case T_OPTICAL:
814 		case T_CHANGER:
815 		case T_COMM:
816 		case T_IT8_1:
817 		case T_IT8_2:
818 		case T_STORARRAY:
819 		case T_ENCLOSURE:
820 		default:
821 			break;
822 		case T_NODEVICE:
823 			goto bad;
824 		}
825 
826 	if ((cf = config_search(scsibussubmatch, (struct device *)scsi,
827 	    &sa)) != NULL) {
828 		scsi->sc_link[target][lun] = sc_link;
829 		config_attach((struct device *)scsi, cf, &sa, scsibusprint);
830 	} else {
831 		scsibusprint(&sa, scsi->sc_dev.dv_xname);
832 		printf(" not configured\n");
833 		goto bad;
834 	}
835 
836 	return (docontinue);
837 
838 bad:
839 	free(sc_link, M_DEVBUF);
840 	return (docontinue);
841 }
842 
843 /****** Entry points for user control of the SCSI bus. ******/
844 
845 int
846 scsibusopen(dev, flag, fmt, p)
847 	dev_t dev;
848 	int flag, fmt;
849 	struct proc *p;
850 {
851 	struct scsibus_softc *sc;
852 	int error, unit = minor(dev);
853 
854 	if (unit >= scsibus_cd.cd_ndevs ||
855 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
856 		return (ENXIO);
857 
858 	if (sc->sc_flags & SCSIBUSF_OPEN)
859 		return (EBUSY);
860 
861 	if ((error = scsipi_adapter_addref(sc->adapter_link)) != 0)
862 		return (error);
863 
864 	sc->sc_flags |= SCSIBUSF_OPEN;
865 
866 	return (0);
867 }
868 
869 int
870 scsibusclose(dev, flag, fmt, p)
871 	dev_t dev;
872 	int flag, fmt;
873 	struct proc *p;
874 {
875 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
876 
877 	scsipi_adapter_delref(sc->adapter_link);
878 
879 	sc->sc_flags &= ~SCSIBUSF_OPEN;
880 
881 	return (0);
882 }
883 
884 int
885 scsibusioctl(dev, cmd, addr, flag, p)
886 	dev_t dev;
887 	u_long cmd;
888 	caddr_t addr;
889 	int flag;
890 	struct proc *p;
891 {
892 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
893 	struct scsipi_link *sc_link = sc->adapter_link;
894 	int error;
895 
896 	/*
897 	 * Enforce write permission for ioctls that change the
898 	 * state of the bus.  Host adapter specific ioctls must
899 	 * be checked by the adapter driver.
900 	 */
901 	switch (cmd) {
902 	case SCBUSIOSCAN:
903 	case SCBUSIORESET:
904 		if ((flag & FWRITE) == 0)
905 			return (EBADF);
906 	}
907 
908 	switch (cmd) {
909 	case SCBUSIOSCAN:
910 	    {
911 		struct scbusioscan_args *a =
912 		    (struct scbusioscan_args *)addr;
913 
914 		/* XXX Change interface to this function. */
915 		error = scsi_probe_busses(minor(dev), a->sa_target,
916 		    a->sa_lun);
917 		break;
918 	    }
919 
920 	case SCBUSIORESET:
921 		/* FALLTHROUGH */
922 	default:
923 		if (sc_link->adapter->scsipi_ioctl == NULL)
924 			error = ENOTTY;
925 		else
926 			error = (*sc_link->adapter->scsipi_ioctl)(sc_link,
927 			    cmd, addr, flag, p);
928 		break;
929 	}
930 
931 	return (error);
932 }
933