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scsiconf.c revision 1.139
      1 /*	$NetBSD: scsiconf.c,v 1.139 2000/04/02 17:25:52 augustss 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 (at) 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 (at) 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 scsibusmatch(parent, cf, aux)
    123 	struct device *parent;
    124 	struct cfdata *cf;
    125 	void *aux;
    126 {
    127 	struct scsipi_link *l = aux;
    128 	int channel;
    129 
    130 	if (l->type != BUS_SCSI)
    131 		return (0);
    132 
    133 	/*
    134 	 * Allow single-channel controllers to specify their channel
    135 	 * in a special way, so that it's not printed.
    136 	 */
    137 	channel = (l->scsipi_scsi.channel != SCSI_CHANNEL_ONLY_ONE) ?
    138 	    l->scsipi_scsi.channel : 0;
    139 
    140 	if (cf->cf_loc[SCSICF_CHANNEL] != channel &&
    141 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
    142 		return (0);
    143 
    144 	return (1);
    145 }
    146 
    147 /*
    148  * The routine called by the adapter boards to get all their
    149  * devices configured in.
    150  */
    151 void
    152 scsibusattach(parent, self, aux)
    153 	struct device *parent, *self;
    154 	void *aux;
    155 {
    156 	struct scsibus_softc *sb = (struct scsibus_softc *)self;
    157 	struct scsipi_link *sc_link_proto = aux;
    158 	size_t nbytes;
    159 	int i;
    160 
    161 	sc_link_proto->scsipi_scsi.scsibus = sb->sc_dev.dv_unit;
    162 	sc_link_proto->scsipi_cmd = scsi_scsipi_cmd;
    163 	sc_link_proto->scsipi_interpret_sense = scsipi_interpret_sense;
    164 	sc_link_proto->sc_print_addr = scsi_print_addr;
    165 	sc_link_proto->scsipi_kill_pending = scsi_kill_pending;
    166 
    167 	sb->adapter_link = sc_link_proto;
    168 	sb->sc_maxtarget = sc_link_proto->scsipi_scsi.max_target;
    169 	sb->sc_maxlun = sc_link_proto->scsipi_scsi.max_lun;
    170 	printf(": %d targets, %d luns per target\n",
    171 	    sb->sc_maxtarget + 1, sb->sc_maxlun + 1);
    172 
    173 	/* Initialize shared data. */
    174 	scsipi_init();
    175 
    176 	nbytes = (sb->sc_maxtarget + 1) * sizeof(struct scsipi_link **);
    177 	sb->sc_link = (struct scsipi_link ***)malloc(nbytes, M_DEVBUF,
    178 	    M_NOWAIT);
    179 	if (sb->sc_link == NULL)
    180 		panic("scsibusattach: can't allocate target links");
    181 
    182 	nbytes = (((int) sb->sc_maxlun) + 1) * sizeof(struct scsipi_link *);
    183 	for (i = 0; i <= sb->sc_maxtarget; i++) {
    184 		sb->sc_link[i] = (struct scsipi_link **)malloc(nbytes,
    185 		    M_DEVBUF, M_NOWAIT);
    186 		if (sb->sc_link[i] == NULL)
    187 			panic("scsibusattach: can't allocate lun links");
    188 		bzero(sb->sc_link[i], nbytes);
    189 	}
    190 
    191 	/*
    192 	 * Defer configuration of the children until interrupts
    193 	 * are enabled.
    194 	 */
    195 	config_interrupts(self, scsibus_config_interrupts);
    196 }
    197 
    198 void
    199 scsibus_config_interrupts(self)
    200 	struct device *self;
    201 {
    202 #ifndef SCSI_DELAY
    203 #define SCSI_DELAY 2
    204 #endif
    205 	if (SCSI_DELAY > 0) {
    206 		printf("%s: waiting %d seconds for devices to settle...\n",
    207 		    self->dv_xname, SCSI_DELAY);
    208 		/* ...an identifier we know no one will use... */
    209 		(void) tsleep(scsibus_config_interrupts, PRIBIO,
    210 		    "scsidly", SCSI_DELAY * hz);
    211 	}
    212 
    213 	scsi_probe_bus(self->dv_unit, -1, -1);
    214 }
    215 
    216 int
    217 scsibussubmatch(parent, cf, aux)
    218 	struct device *parent;
    219 	struct cfdata *cf;
    220 	void *aux;
    221 {
    222 	struct scsipibus_attach_args *sa = aux;
    223 	struct scsipi_link *sc_link = sa->sa_sc_link;
    224 
    225 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
    226 	    cf->cf_loc[SCSIBUSCF_TARGET] != sc_link->scsipi_scsi.target)
    227 		return (0);
    228 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
    229 	    cf->cf_loc[SCSIBUSCF_LUN] != sc_link->scsipi_scsi.lun)
    230 		return (0);
    231 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    232 }
    233 
    234 int
    235 scsibusactivate(self, act)
    236 	struct device *self;
    237 	enum devact act;
    238 {
    239 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
    240 	struct scsipi_link *sc_link;
    241 	int target, lun, error = 0, s;
    242 
    243 	s = splbio();
    244 	switch (act) {
    245 	case DVACT_ACTIVATE:
    246 		error = EOPNOTSUPP;
    247 		break;
    248 
    249 	case DVACT_DEACTIVATE:
    250 		for (target = 0; target <= sc->sc_maxtarget; target++) {
    251 			if (target ==
    252 			    sc->adapter_link->scsipi_scsi.adapter_target)
    253 				continue;
    254 			for (lun = 0; lun <= sc->sc_maxlun; lun++) {
    255 				sc_link = sc->sc_link[target][lun];
    256 				if (sc_link == NULL)
    257 					continue;
    258 				error =
    259 				    config_deactivate(sc_link->device_softc);
    260 				if (error)
    261 					goto out;
    262 			}
    263 		}
    264 		break;
    265 	}
    266  out:
    267 	splx(s);
    268 	return (error);
    269 }
    270 
    271 int
    272 scsibusdetach(self, flags)
    273 	struct device *self;
    274 	int flags;
    275 {
    276 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
    277 	struct scsipi_link *sc_link;
    278 	int target, lun, error;
    279 
    280 	for (target = 0; target <= sc->sc_maxtarget; target++) {
    281 		if (target == sc->adapter_link->scsipi_scsi.adapter_target)
    282 			continue;
    283 		for (lun = 0; lun <= sc->sc_maxlun; lun++) {
    284 			sc_link = sc->sc_link[target][lun];
    285 			if (sc_link == NULL)
    286 				continue;
    287 			error = config_detach(sc_link->device_softc, flags);
    288 			if (error)
    289 				return (error);
    290 			free(sc_link, M_DEVBUF);
    291 			sc->sc_link[target][lun] = NULL;
    292 		}
    293 	}
    294 	return (0);
    295 }
    296 
    297 /*
    298  * Probe the requested scsi bus. It must be already set up.
    299  * -1 requests all set up scsi busses.
    300  * target and lun optionally narrow the search if not -1
    301  */
    302 int
    303 scsi_probe_busses(bus, target, lun)
    304 	int bus, target, lun;
    305 {
    306 
    307 	if (bus == -1) {
    308 		for (bus = 0; bus < scsibus_cd.cd_ndevs; bus++)
    309 			if (scsibus_cd.cd_devs[bus])
    310 				scsi_probe_bus(bus, target, lun);
    311 		return (0);
    312 	} else
    313 		return (scsi_probe_bus(bus, target, lun));
    314 }
    315 
    316 /*
    317  * Probe the requested scsi bus. It must be already set up.
    318  * target and lun optionally narrow the search if not -1
    319  */
    320 int
    321 scsi_probe_bus(bus, target, lun)
    322 	int bus, target, lun;
    323 {
    324 	struct scsibus_softc *scsi;
    325 	int maxtarget, mintarget, maxlun, minlun;
    326 	u_int8_t scsi_addr;
    327 	int error;
    328 
    329 	if (bus < 0 || bus >= scsibus_cd.cd_ndevs)
    330 		return (ENXIO);
    331 	scsi = scsibus_cd.cd_devs[bus];
    332 	if (scsi == NULL)
    333 		return (ENXIO);
    334 
    335 	scsi_addr = scsi->adapter_link->scsipi_scsi.adapter_target;
    336 
    337 	if (target == -1) {
    338 		maxtarget = scsi->sc_maxtarget;
    339 		mintarget = 0;
    340 	} else {
    341 		if (target < 0 || target > scsi->sc_maxtarget)
    342 			return (EINVAL);
    343 		maxtarget = mintarget = target;
    344 	}
    345 
    346 	if (lun == -1) {
    347 		maxlun = scsi->sc_maxlun;
    348 		minlun = 0;
    349 	} else {
    350 		if (lun < 0 || lun > scsi->sc_maxlun)
    351 			return (EINVAL);
    352 		maxlun = minlun = lun;
    353 	}
    354 
    355 	if ((error = scsipi_adapter_addref(scsi->adapter_link)) != 0)
    356 		return (error);
    357 	for (target = mintarget; target <= maxtarget; target++) {
    358 		if (target == scsi_addr)
    359 			continue;
    360 		for (lun = minlun; lun <= maxlun; lun++) {
    361 			/*
    362 			 * See if there's a device present, and configure it.
    363 			 */
    364 			if (scsi_probedev(scsi, target, lun) == 0) {
    365 				break;
    366 			}
    367 			/* otherwise something says we should look further */
    368 		}
    369 	}
    370 	scsipi_adapter_delref(scsi->adapter_link);
    371 	return (0);
    372 }
    373 
    374 /*
    375  * Print out autoconfiguration information for a subdevice.
    376  *
    377  * This is a slight abuse of 'standard' autoconfiguration semantics,
    378  * because 'print' functions don't normally print the colon and
    379  * device information.  However, in this case that's better than
    380  * either printing redundant information before the attach message,
    381  * or having the device driver call a special function to print out
    382  * the standard device information.
    383  */
    384 int
    385 scsibusprint(aux, pnp)
    386 	void *aux;
    387 	const char *pnp;
    388 {
    389 	struct scsipibus_attach_args *sa = aux;
    390 	struct scsipi_inquiry_pattern *inqbuf;
    391 	u_int8_t type;
    392 	char *dtype, *qtype;
    393 	char vendor[33], product[65], revision[17];
    394 	int target, lun;
    395 
    396 	if (pnp != NULL)
    397 		printf("%s", pnp);
    398 
    399 	inqbuf = &sa->sa_inqbuf;
    400 
    401 	target = sa->sa_sc_link->scsipi_scsi.target;
    402 	lun = sa->sa_sc_link->scsipi_scsi.lun;
    403 
    404 	type = inqbuf->type & SID_TYPE;
    405 
    406 	/*
    407 	 * Figure out basic device type and qualifier.
    408 	 */
    409 	dtype = 0;
    410 	switch (inqbuf->type & SID_QUAL) {
    411 	case SID_QUAL_LU_OK:
    412 		qtype = "";
    413 		break;
    414 
    415 	case SID_QUAL_LU_OFFLINE:
    416 		qtype = " offline";
    417 		break;
    418 
    419 	case SID_QUAL_RSVD:
    420 	case SID_QUAL_BAD_LU:
    421 		panic("scsibusprint: impossible qualifier");
    422 
    423 	default:
    424 		qtype = "";
    425 		dtype = "vendor-unique";
    426 		break;
    427 	}
    428 	if (dtype == 0)
    429 		dtype = scsipi_dtype(type);
    430 
    431 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
    432 	scsipi_strvis(product, 65, inqbuf->product, 16);
    433 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
    434 
    435 	printf(" target %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
    436 	    target, lun, vendor, product, revision,
    437 	    sa->scsipi_info.scsi_version & SID_ANSII, type, dtype,
    438 	    inqbuf->removable ? "removable" : "fixed", qtype);
    439 
    440 	return (UNCONF);
    441 }
    442 
    443 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    444 	{{T_CDROM, T_REMOV,
    445 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     SDEV_NOLUNS},
    446 	{{T_CDROM, T_REMOV,
    447 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     SDEV_NOLUNS},
    448 	{{T_CDROM, T_REMOV,
    449 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     SDEV_NOLUNS},
    450 	{{T_CDROM, T_REMOV,
    451 	 "DEC     ", "RRD42   (C) DEC ", ""},     SDEV_NOLUNS},
    452 	{{T_CDROM, T_REMOV,
    453 	 "DENON   ", "DRD-25X         ", "V"},    SDEV_NOLUNS},
    454 	{{T_CDROM, T_REMOV,
    455 	 "HP      ", "C4324/C4325     ", ""},     SDEV_NOLUNS},
    456 	{{T_CDROM, T_REMOV,
    457 	 "IMS     ", "CDD521/10       ", "2.06"}, SDEV_NOLUNS},
    458 	{{T_CDROM, T_REMOV,
    459 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, SDEV_NOLUNS},
    460 	{{T_CDROM, T_REMOV,
    461 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     SDEV_NOLUNS},
    462 	{{T_CDROM, T_REMOV,
    463 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  SDEV_NOLUNS},
    464 	{{T_CDROM, T_REMOV,
    465 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     SDEV_NOLUNS},
    466 	{{T_CDROM, T_REMOV,
    467 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     SDEV_NOLUNS},
    468 	{{T_CDROM, T_REMOV,
    469 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     SDEV_NOLUNS},
    470 	{{T_CDROM, T_REMOV,
    471 	 "NEC     ", "CD-ROM DRIVE:841", ""},     SDEV_NOLUNS},
    472 	{{T_CDROM, T_REMOV,
    473 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, SDEV_NOLUNS},
    474 	{{T_CDROM, T_REMOV,
    475 	 "SONY    ", "CD-ROM CDU-541  ", ""},     SDEV_NOLUNS},
    476 	{{T_CDROM, T_REMOV,
    477 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     SDEV_NOLUNS},
    478 	{{T_CDROM, T_REMOV,
    479 	 "SONY    ", "CD-ROM CDU-561  ", ""},     SDEV_NOLUNS},
    480 	{{T_CDROM, T_REMOV,
    481 	 "SONY    ", "CD-ROM CDU-8003A", ""},     SDEV_NOLUNS},
    482 	{{T_CDROM, T_REMOV,
    483 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     SDEV_NOLUNS},
    484 	{{T_CDROM, T_REMOV,
    485 	 "TEAC    ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    486 	{{T_CDROM, T_REMOV,
    487 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, SDEV_NOLUNS},
    488 	{{T_CDROM, T_REMOV,
    489 	 "TEXEL   ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    490 	{{T_CDROM, T_REMOV,
    491 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, SDEV_NOLUNS},
    492 	{{T_CDROM, T_REMOV,
    493 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS},
    494 	{{T_CDROM, T_REMOV,
    495 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, SDEV_NOLUNS},
    496 	{{T_CDROM, T_REMOV,
    497 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"}, SDEV_NOLUNS},
    498 	{{T_CDROM, T_REMOV,
    499 	 "JVC     ", "R2626",            ""},     SDEV_NOLUNS},
    500 	{{T_CDROM, T_REMOV,
    501 	 "YAMAHA", "CRW8424S",           ""},     SDEV_NOLUNS},
    502 	{{T_DIRECT, T_FIXED,
    503 	 "MICROP  ", "1588-15MBSUN0669", ""},     SDEV_AUTOSAVE},
    504 	{{T_DIRECT, T_FIXED,
    505 	 "MICROP  ", "2217-15MQ1091501", ""},     SDEV_NOSYNCCACHE},
    506 	{{T_OPTICAL, T_REMOV,
    507 	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
    508 
    509 	{{T_DIRECT, T_FIXED,
    510 	"TOSHIBA ", "CD-ROM XM-3401TA", "0283"}, ADEV_CDROM|SDEV_NOLUNS},
    511 	{{T_DIRECT, T_FIXED,
    512 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, SDEV_NOMODESENSE},
    513 	{{T_DIRECT, T_FIXED,
    514 	 "DEC     ", "RZ55     (C) DEC", ""},     SDEV_AUTOSAVE},
    515 	{{T_DIRECT, T_FIXED,
    516 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  SDEV_FORCELUNS|SDEV_AUTOSAVE},
    517 	/* Gives non-media hardware failure in response to start-unit command */
    518 	{{T_DIRECT, T_FIXED,
    519 	 "HITACHI", "DK515C",		"CP16"},  SDEV_NOSTARTUNIT},
    520 	{{T_DIRECT, T_FIXED,
    521 	 "HITACHI", "DK515C",		"CP15"},  SDEV_NOSTARTUNIT},
    522 	{{T_DIRECT, T_FIXED,
    523 	 "HP      ", "C372",             ""},     SDEV_NOTAG},
    524 	{{T_DIRECT, T_FIXED,
    525 	 "IBMRAID ", "0662S",		 ""},     SDEV_AUTOSAVE},
    526 	{{T_DIRECT, T_FIXED,
    527 	 "IBM     ", "0663H",		 ""},     SDEV_AUTOSAVE},
    528 	{{T_DIRECT, T_FIXED,
    529 	 "IBM",	     "0664",		 ""},     SDEV_AUTOSAVE},
    530 	{{T_DIRECT, T_FIXED,
    531 	 "IBM     ", "H3171-S2",	 ""},	  SDEV_NOLUNS|SDEV_AUTOSAVE},
    532 	{{T_DIRECT, T_FIXED,
    533 	 "IBM     ", "KZ-C",		 ""},	  SDEV_AUTOSAVE},
    534 	/* Broken IBM disk */
    535 	{{T_DIRECT, T_FIXED,
    536 	 ""	   , "DFRSS2F",		 ""},	  SDEV_AUTOSAVE},
    537 	{{T_DIRECT, T_REMOV,
    538 	 "MPL     ", "MC-DISK-        ", ""},     SDEV_NOLUNS},
    539 	{{T_DIRECT, T_FIXED,
    540 	 "MAXTOR  ", "XT-3280         ", ""},     SDEV_NOLUNS},
    541 	{{T_DIRECT, T_FIXED,
    542 	 "MAXTOR  ", "XT-4380S        ", ""},     SDEV_NOLUNS},
    543 	{{T_DIRECT, T_FIXED,
    544 	 "MAXTOR  ", "MXT-1240S       ", ""},     SDEV_NOLUNS},
    545 	{{T_DIRECT, T_FIXED,
    546 	 "MAXTOR  ", "XT-4170S        ", ""},     SDEV_NOLUNS},
    547 	{{T_DIRECT, T_FIXED,
    548 	 "MAXTOR  ", "XT-8760S",         ""},     SDEV_NOLUNS},
    549 	{{T_DIRECT, T_FIXED,
    550 	 "MAXTOR  ", "LXT-213S        ", ""},     SDEV_NOLUNS},
    551 	{{T_DIRECT, T_FIXED,
    552 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     SDEV_NOLUNS},
    553 	{{T_DIRECT, T_FIXED,
    554 	 "MAXTOR  ", "LXT-200S        ", ""},     SDEV_NOLUNS},
    555 	{{T_DIRECT, T_FIXED,
    556 	 "MEGADRV ", "EV1000",           ""},     SDEV_NOMODESENSE},
    557 	{{T_DIRECT, T_FIXED,
    558 	 "MST     ", "SnapLink        ", ""},     SDEV_NOLUNS},
    559 	{{T_DIRECT, T_FIXED,
    560 	 "NEC     ", "D3847           ", "0307"}, SDEV_NOLUNS},
    561 	{{T_DIRECT, T_FIXED,
    562 	 "QUANTUM ", "ELS85S          ", ""},     SDEV_AUTOSAVE},
    563 	{{T_DIRECT, T_FIXED,
    564 	 "QUANTUM ", "LPS525S         ", ""},     SDEV_NOLUNS},
    565 	{{T_DIRECT, T_FIXED,
    566 	 "QUANTUM ", "P105S 910-10-94x", ""},     SDEV_NOLUNS},
    567 	{{T_DIRECT, T_FIXED,
    568 	 "QUANTUM ", "PD1225S         ", ""},     SDEV_NOLUNS},
    569 	{{T_DIRECT, T_FIXED,
    570 	 "QUANTUM ", "PD210S   SUN0207", ""},     SDEV_NOLUNS},
    571 	{{T_DIRECT, T_FIXED,
    572 	 "RODIME  ", "RO3000S         ", ""},     SDEV_NOLUNS},
    573 	{{T_DIRECT, T_FIXED,
    574 	 "SEAGATE ", "ST125N          ", ""},     SDEV_NOLUNS},
    575 	{{T_DIRECT, T_FIXED,
    576 	 "SEAGATE ", "ST157N          ", ""},     SDEV_NOLUNS},
    577 	{{T_DIRECT, T_FIXED,
    578 	 "SEAGATE ", "ST296           ", ""},     SDEV_NOLUNS},
    579 	{{T_DIRECT, T_FIXED,
    580 	 "SEAGATE ", "ST296N          ", ""},     SDEV_NOLUNS},
    581 	{{T_DIRECT, T_FIXED,
    582 	 "SEAGATE ", "ST19171",          ""},     SDEV_NOMODESENSE},
    583 	{{T_DIRECT, T_FIXED,
    584 	 "SEAGATE ", "ST34501FC       ", ""},     SDEV_NOMODESENSE},
    585 	{{T_DIRECT, T_FIXED,
    586 	 "TOSHIBA ", "MK538FB         ", "6027"}, SDEV_NOLUNS},
    587 	{{T_DIRECT, T_REMOV,
    588 	 "iomega", "jaz 1GB", 		 ""},	  SDEV_NOMODESENSE},
    589 	{{T_DIRECT, T_REMOV,
    590 	 "IOMEGA", "ZIP 100",		 ""},	  SDEV_NOMODESENSE},
    591 	{{T_DIRECT, T_REMOV,
    592 	 "IOMEGA", "ZIP 100",		 "J.03"}, SDEV_NOMODESENSE|SDEV_NOLUNS},
    593 	/* Letting the motor run kills floppy drives and disks quite fast. */
    594 	{{T_DIRECT, T_REMOV,
    595 	 "TEAC", "FC-1",		 ""},	  SDEV_NOSTARTUNIT},
    596 
    597 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    598 	{{T_SEQUENTIAL, T_REMOV,
    599 	 "        ", "                ", "    "}, SDEV_NOLUNS},
    600 	{{T_SEQUENTIAL, T_REMOV,
    601 	 "CALIPER ", "CP150           ", ""},     SDEV_NOLUNS},
    602 	{{T_SEQUENTIAL, T_REMOV,
    603 	 "EXABYTE ", "EXB-8200        ", ""},     SDEV_NOLUNS},
    604 	{{T_SEQUENTIAL, T_REMOV,
    605 	 "SONY    ", "GY-10C          ", ""},     SDEV_NOLUNS},
    606 	{{T_SEQUENTIAL, T_REMOV,
    607 	 "SONY    ", "SDT-2000        ", "2.09"}, SDEV_NOLUNS},
    608 	{{T_SEQUENTIAL, T_REMOV,
    609 	 "SONY    ", "SDT-5000        ", "3."},   SDEV_NOSYNC|SDEV_NOWIDE},
    610 	{{T_SEQUENTIAL, T_REMOV,
    611 	 "SONY    ", "SDT-5200        ", "3."},   SDEV_NOLUNS},
    612 	{{T_SEQUENTIAL, T_REMOV,
    613 	 "TANDBERG", " TDC 3600       ", ""},     SDEV_NOLUNS},
    614 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    615 	{{T_SEQUENTIAL, T_REMOV,
    616 	 "ARCHIVE ", "VIPER 150  21247", ""},     SDEV_NOLUNS},
    617 	/* Following entry for a Cipher ST150S; ref. PR4171 */
    618 	{{T_SEQUENTIAL, T_REMOV,
    619 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, SDEV_NOLUNS},
    620 	{{T_SEQUENTIAL, T_REMOV,
    621 	 "ARCHIVE ", "Python 28454-XXX", ""},     SDEV_NOLUNS},
    622 	{{T_SEQUENTIAL, T_REMOV,
    623 	 "WANGTEK ", "5099ES SCSI",      ""},     SDEV_NOLUNS},
    624 	{{T_SEQUENTIAL, T_REMOV,
    625 	 "WANGTEK ", "5150ES SCSI",      ""},     SDEV_NOLUNS},
    626 	{{T_SEQUENTIAL, T_REMOV,
    627 	 "WANGTEK ", "SCSI-36",		 ""},     SDEV_NOLUNS},
    628 	{{T_SEQUENTIAL, T_REMOV,
    629 	 "WangDAT ", "Model 1300      ", "02.4"}, SDEV_NOSYNC|SDEV_NOWIDE},
    630 	{{T_SEQUENTIAL, T_REMOV,
    631 	 "WangDAT ", "Model 2600      ", "01.7"}, SDEV_NOSYNC|SDEV_NOWIDE},
    632 	{{T_SEQUENTIAL, T_REMOV,
    633 	 "WangDAT ", "Model 3200      ", "02.2"}, SDEV_NOSYNC|SDEV_NOWIDE},
    634 	{{T_SEQUENTIAL, T_REMOV,
    635 	 "TEAC    ", "MT-2ST/N50      ", ""},     SDEV_NOLUNS},
    636 
    637 	{{T_SCANNER, T_FIXED,
    638 	 "RICOH   ", "IS60            ", "1R08"}, SDEV_NOLUNS},
    639 	{{T_SCANNER, T_FIXED,
    640 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, SDEV_NOLUNS},
    641 	{{T_SCANNER, T_FIXED,
    642 	 "UMAX    ", "Astra 1220S     ", ""}, SDEV_NOLUNS},
    643 	{{T_SCANNER, T_FIXED,
    644 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, SDEV_NOLUNS},
    645 	{{T_SCANNER, T_FIXED,
    646 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, SDEV_NOLUNS},
    647 	{{T_SCANNER, T_FIXED,
    648 	 "ULTIMA  ", "A6000C          ", ""}, SDEV_NOLUNS},
    649 
    650 	{{T_PROCESSOR, T_FIXED,
    651 	 "LITRONIC", "PCMCIA          ", ""},     SDEV_NOLUNS},
    652 
    653 	{{T_CHANGER, T_REMOV,
    654 	 "SONY    ", "CDL1100         ", ""},     SDEV_NOLUNS},
    655 
    656 	{{T_ENCLOSURE, T_FIXED,
    657 	 "SUN     ", "SENA            ", ""},     SDEV_NOLUNS},
    658 };
    659 
    660 /*
    661  * given a target and lun, ask the device what
    662  * it is, and find the correct driver table
    663  * entry.
    664  */
    665 int
    666 scsi_probedev(scsi, target, lun)
    667 	struct scsibus_softc *scsi;
    668 	int target, lun;
    669 {
    670 	struct scsipi_link *sc_link;
    671 	static struct scsipi_inquiry_data inqbuf;
    672 	struct scsi_quirk_inquiry_pattern *finger;
    673 	int checkdtype, priority, docontinue;
    674 	struct scsipibus_attach_args sa;
    675 	struct cfdata *cf;
    676 
    677 	/*
    678 	 * Assume no more luns to search after this one.
    679 	 * If we successfully get Inquiry data and after
    680 	 * merging quirks we find we can probe for more
    681 	 * luns, we will.
    682 	 */
    683 	docontinue = 0;
    684 
    685 	/* Skip this slot if it is already attached. */
    686 	if (scsi->sc_link[target][lun] != NULL)
    687 		return (docontinue);
    688 
    689 	sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT);
    690 	*sc_link = *scsi->adapter_link;
    691 	sc_link->active = 0;
    692 	sc_link->scsipi_scsi.target = target;
    693 	sc_link->scsipi_scsi.lun = lun;
    694 	sc_link->device = &probe_switch;
    695 	TAILQ_INIT(&sc_link->pending_xfers);
    696 
    697 	/*
    698 	 * Ask the device what it is
    699 	 */
    700 #if defined(SCSIDEBUG) && DEBUGTYPE == BUS_SCSI
    701 	if (target == DEBUGTARGET && lun == DEBUGLUN)
    702 		sc_link->flags |= DEBUGLEVEL;
    703 #endif /* SCSIDEBUG */
    704 
    705 	(void) scsipi_test_unit_ready(sc_link,
    706 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    707 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
    708 
    709 #ifdef SCSI_2_DEF
    710 	/* some devices need to be told to go to SCSI2 */
    711 	/* However some just explode if you tell them this.. leave it out */
    712 	scsi_change_def(sc_link, XS_CTL_DISCOVERY | XS_CTL_SILENT);
    713 #endif /* SCSI_2_DEF */
    714 
    715 	/* Now go ask the device all about itself. */
    716 	bzero(&inqbuf, sizeof(inqbuf));
    717 	if (scsipi_inquire(sc_link, &inqbuf, XS_CTL_DISCOVERY) != 0)
    718 		goto bad;
    719 
    720 	{
    721 		int len = inqbuf.additional_length;
    722 		while (len < 3)
    723 			inqbuf.unused[len++] = '\0';
    724 		while (len < 3 + 28)
    725 			inqbuf.unused[len++] = ' ';
    726 	}
    727 
    728 	sa.sa_sc_link = sc_link;
    729 	sa.sa_inqbuf.type = inqbuf.device;
    730 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
    731 	    T_REMOV : T_FIXED;
    732 	sa.sa_inqbuf.vendor = inqbuf.vendor;
    733 	sa.sa_inqbuf.product = inqbuf.product;
    734 	sa.sa_inqbuf.revision = inqbuf.revision;
    735 	sa.scsipi_info.scsi_version = inqbuf.version;
    736 	sa.sa_inqptr = &inqbuf;
    737 
    738 	finger = (struct scsi_quirk_inquiry_pattern *)scsipi_inqmatch(
    739 	    &sa.sa_inqbuf, (caddr_t)scsi_quirk_patterns,
    740 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
    741 	    sizeof(scsi_quirk_patterns[0]), &priority);
    742 
    743 	/*
    744 	 * Based upon the inquiry flags we got back, and if we're
    745 	 * at SCSI-2 or better, set some limiting quirks.
    746 	 */
    747 	if ((inqbuf.version & SID_ANSII) >= 2) {
    748 		if ((inqbuf.flags & SID_CmdQue) == 0)
    749 			sc_link->quirks |= SDEV_NOTAG;
    750 		if ((inqbuf.flags & SID_Sync) == 0)
    751 			sc_link->quirks |= SDEV_NOSYNC;
    752 		if ((inqbuf.flags & SID_WBus16) == 0)
    753 			sc_link->quirks |= SDEV_NOWIDE;
    754 	}
    755 	/*
    756 	 * Now apply any quirks from the table.
    757 	 */
    758 	if (priority != 0)
    759 		sc_link->quirks |= finger->quirks;
    760 	if ((inqbuf.version & SID_ANSII) == 0 &&
    761 	    (sc_link->quirks & SDEV_FORCELUNS) == 0)
    762 		sc_link->quirks |= SDEV_NOLUNS;
    763 	sc_link->scsipi_scsi.scsi_version = inqbuf.version;
    764 
    765 	if ((sc_link->quirks & SDEV_NOLUNS) == 0)
    766 		docontinue = 1;
    767 
    768 	/*
    769 	 * note what BASIC type of device it is
    770 	 */
    771 	if ((inqbuf.dev_qual2 & SID_REMOVABLE) != 0)
    772 		sc_link->flags |= SDEV_REMOVABLE;
    773 
    774 	/*
    775 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    776 	 * is vendor specific and won't match in this switch.
    777 	 * All we do here is throw out bad/negative responses.
    778 	 */
    779 	checkdtype = 0;
    780 	switch (inqbuf.device & SID_QUAL) {
    781 	case SID_QUAL_LU_OK:
    782 	case SID_QUAL_LU_OFFLINE:
    783 		checkdtype = 1;
    784 		break;
    785 
    786 	case SID_QUAL_RSVD:
    787 	case SID_QUAL_BAD_LU:
    788 		goto bad;
    789 
    790 	default:
    791 		break;
    792 	}
    793 	if (checkdtype)
    794 		switch (inqbuf.device & SID_TYPE) {
    795 		case T_DIRECT:
    796 		case T_SEQUENTIAL:
    797 		case T_PRINTER:
    798 		case T_PROCESSOR:
    799 		case T_WORM:
    800 		case T_CDROM:
    801 		case T_SCANNER:
    802 		case T_OPTICAL:
    803 		case T_CHANGER:
    804 		case T_COMM:
    805 		case T_IT8_1:
    806 		case T_IT8_2:
    807 		case T_STORARRAY:
    808 		case T_ENCLOSURE:
    809 		default:
    810 			break;
    811 		case T_NODEVICE:
    812 			goto bad;
    813 		}
    814 
    815 	if ((cf = config_search(scsibussubmatch, (struct device *)scsi,
    816 	    &sa)) != NULL) {
    817 		scsi->sc_link[target][lun] = sc_link;
    818 		config_attach((struct device *)scsi, cf, &sa, scsibusprint);
    819 	} else {
    820 		scsibusprint(&sa, scsi->sc_dev.dv_xname);
    821 		printf(" not configured\n");
    822 		goto bad;
    823 	}
    824 
    825 	return (docontinue);
    826 
    827 bad:
    828 	free(sc_link, M_DEVBUF);
    829 	return (docontinue);
    830 }
    831 
    832 /****** Entry points for user control of the SCSI bus. ******/
    833 
    834 int
    835 scsibusopen(dev, flag, fmt, p)
    836 	dev_t dev;
    837 	int flag, fmt;
    838 	struct proc *p;
    839 {
    840 	struct scsibus_softc *sc;
    841 	int error, unit = minor(dev);
    842 
    843 	if (unit >= scsibus_cd.cd_ndevs ||
    844 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
    845 		return (ENXIO);
    846 
    847 	if (sc->sc_flags & SCSIBUSF_OPEN)
    848 		return (EBUSY);
    849 
    850 	if ((error = scsipi_adapter_addref(sc->adapter_link)) != 0)
    851 		return (error);
    852 
    853 	sc->sc_flags |= SCSIBUSF_OPEN;
    854 
    855 	return (0);
    856 }
    857 
    858 int
    859 scsibusclose(dev, flag, fmt, p)
    860 	dev_t dev;
    861 	int flag, fmt;
    862 	struct proc *p;
    863 {
    864 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    865 
    866 	scsipi_adapter_delref(sc->adapter_link);
    867 
    868 	sc->sc_flags &= ~SCSIBUSF_OPEN;
    869 
    870 	return (0);
    871 }
    872 
    873 int
    874 scsibusioctl(dev, cmd, addr, flag, p)
    875 	dev_t dev;
    876 	u_long cmd;
    877 	caddr_t addr;
    878 	int flag;
    879 	struct proc *p;
    880 {
    881 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    882 	struct scsipi_link *sc_link = sc->adapter_link;
    883 	int error;
    884 
    885 	/*
    886 	 * Enforce write permission for ioctls that change the
    887 	 * state of the bus.  Host adapter specific ioctls must
    888 	 * be checked by the adapter driver.
    889 	 */
    890 	switch (cmd) {
    891 	case SCBUSIOSCAN:
    892 	case SCBUSIORESET:
    893 		if ((flag & FWRITE) == 0)
    894 			return (EBADF);
    895 	}
    896 
    897 	switch (cmd) {
    898 	case SCBUSIOSCAN:
    899 	    {
    900 		struct scbusioscan_args *a =
    901 		    (struct scbusioscan_args *)addr;
    902 
    903 		/* XXX Change interface to this function. */
    904 		error = scsi_probe_busses(minor(dev), a->sa_target,
    905 		    a->sa_lun);
    906 		break;
    907 	    }
    908 
    909 	case SCBUSIORESET:
    910 		/* FALLTHROUGH */
    911 	default:
    912 		if (sc_link->adapter->scsipi_ioctl == NULL)
    913 			error = ENOTTY;
    914 		else
    915 			error = (*sc_link->adapter->scsipi_ioctl)(sc_link,
    916 			    cmd, addr, flag, p);
    917 		break;
    918 	}
    919 
    920 	return (error);
    921 }
    922