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scsiconf.c revision 1.138
      1 /*	$NetBSD: scsiconf.c,v 1.138 2000/03/27 11:45:42 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 	/*
    131 	 * Allow single-channel controllers to specify their channel
    132 	 * in a special way, so that it's not printed.
    133 	 */
    134 	channel = (l->scsipi_scsi.channel != SCSI_CHANNEL_ONLY_ONE) ?
    135 	    l->scsipi_scsi.channel : 0;
    136 
    137 	if (cf->cf_loc[SCSICF_CHANNEL] != channel &&
    138 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
    139 		return (0);
    140 
    141 	return (1);
    142 }
    143 
    144 /*
    145  * The routine called by the adapter boards to get all their
    146  * devices configured in.
    147  */
    148 void
    149 scsibusattach(parent, self, aux)
    150 	struct device *parent, *self;
    151 	void *aux;
    152 {
    153 	struct scsibus_softc *sb = (struct scsibus_softc *)self;
    154 	struct scsipi_link *sc_link_proto = aux;
    155 	size_t nbytes;
    156 	int i;
    157 
    158 	sc_link_proto->scsipi_scsi.scsibus = sb->sc_dev.dv_unit;
    159 	sc_link_proto->scsipi_cmd = scsi_scsipi_cmd;
    160 	sc_link_proto->scsipi_interpret_sense = scsipi_interpret_sense;
    161 	sc_link_proto->sc_print_addr = scsi_print_addr;
    162 	sc_link_proto->scsipi_kill_pending = scsi_kill_pending;
    163 
    164 	sb->adapter_link = sc_link_proto;
    165 	sb->sc_maxtarget = sc_link_proto->scsipi_scsi.max_target;
    166 	sb->sc_maxlun = sc_link_proto->scsipi_scsi.max_lun;
    167 	printf(": %d targets, %d luns per target\n",
    168 	    sb->sc_maxtarget + 1, sb->sc_maxlun + 1);
    169 
    170 	/* Initialize shared data. */
    171 	scsipi_init();
    172 
    173 	nbytes = (sb->sc_maxtarget + 1) * sizeof(struct scsipi_link **);
    174 	sb->sc_link = (struct scsipi_link ***)malloc(nbytes, M_DEVBUF,
    175 	    M_NOWAIT);
    176 	if (sb->sc_link == NULL)
    177 		panic("scsibusattach: can't allocate target links");
    178 
    179 	nbytes = (((int) sb->sc_maxlun) + 1) * sizeof(struct scsipi_link *);
    180 	for (i = 0; i <= sb->sc_maxtarget; i++) {
    181 		sb->sc_link[i] = (struct scsipi_link **)malloc(nbytes,
    182 		    M_DEVBUF, M_NOWAIT);
    183 		if (sb->sc_link[i] == NULL)
    184 			panic("scsibusattach: can't allocate lun links");
    185 		bzero(sb->sc_link[i], nbytes);
    186 	}
    187 
    188 	/*
    189 	 * Defer configuration of the children until interrupts
    190 	 * are enabled.
    191 	 */
    192 	config_interrupts(self, scsibus_config_interrupts);
    193 }
    194 
    195 void
    196 scsibus_config_interrupts(self)
    197 	struct device *self;
    198 {
    199 #ifndef SCSI_DELAY
    200 #define SCSI_DELAY 2
    201 #endif
    202 	if (SCSI_DELAY > 0) {
    203 		printf("%s: waiting %d seconds for devices to settle...\n",
    204 		    self->dv_xname, SCSI_DELAY);
    205 		/* ...an identifier we know no one will use... */
    206 		(void) tsleep(scsibus_config_interrupts, PRIBIO,
    207 		    "scsidly", SCSI_DELAY * hz);
    208 	}
    209 
    210 	scsi_probe_bus(self->dv_unit, -1, -1);
    211 }
    212 
    213 int
    214 scsibussubmatch(parent, cf, aux)
    215 	struct device *parent;
    216 	struct cfdata *cf;
    217 	void *aux;
    218 {
    219 	struct scsipibus_attach_args *sa = aux;
    220 	struct scsipi_link *sc_link = sa->sa_sc_link;
    221 
    222 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
    223 	    cf->cf_loc[SCSIBUSCF_TARGET] != sc_link->scsipi_scsi.target)
    224 		return (0);
    225 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
    226 	    cf->cf_loc[SCSIBUSCF_LUN] != sc_link->scsipi_scsi.lun)
    227 		return (0);
    228 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    229 }
    230 
    231 int
    232 scsibusactivate(self, act)
    233 	struct device *self;
    234 	enum devact act;
    235 {
    236 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
    237 	struct scsipi_link *sc_link;
    238 	int target, lun, error = 0, s;
    239 
    240 	s = splbio();
    241 	switch (act) {
    242 	case DVACT_ACTIVATE:
    243 		error = EOPNOTSUPP;
    244 		break;
    245 
    246 	case DVACT_DEACTIVATE:
    247 		for (target = 0; target <= sc->sc_maxtarget; target++) {
    248 			if (target ==
    249 			    sc->adapter_link->scsipi_scsi.adapter_target)
    250 				continue;
    251 			for (lun = 0; lun <= sc->sc_maxlun; lun++) {
    252 				sc_link = sc->sc_link[target][lun];
    253 				if (sc_link == NULL)
    254 					continue;
    255 				error =
    256 				    config_deactivate(sc_link->device_softc);
    257 				if (error)
    258 					goto out;
    259 			}
    260 		}
    261 		break;
    262 	}
    263  out:
    264 	splx(s);
    265 	return (error);
    266 }
    267 
    268 int
    269 scsibusdetach(self, flags)
    270 	struct device *self;
    271 	int flags;
    272 {
    273 	struct scsibus_softc *sc = (struct scsibus_softc *) self;
    274 	struct scsipi_link *sc_link;
    275 	int target, lun, error;
    276 
    277 	for (target = 0; target <= sc->sc_maxtarget; target++) {
    278 		if (target == sc->adapter_link->scsipi_scsi.adapter_target)
    279 			continue;
    280 		for (lun = 0; lun <= sc->sc_maxlun; lun++) {
    281 			sc_link = sc->sc_link[target][lun];
    282 			if (sc_link == NULL)
    283 				continue;
    284 			error = config_detach(sc_link->device_softc, flags);
    285 			if (error)
    286 				return (error);
    287 			free(sc_link, M_DEVBUF);
    288 			sc->sc_link[target][lun] = NULL;
    289 		}
    290 	}
    291 	return (0);
    292 }
    293 
    294 /*
    295  * Probe the requested scsi bus. It must be already set up.
    296  * -1 requests all set up scsi busses.
    297  * target and lun optionally narrow the search if not -1
    298  */
    299 int
    300 scsi_probe_busses(bus, target, lun)
    301 	int bus, target, lun;
    302 {
    303 
    304 	if (bus == -1) {
    305 		for (bus = 0; bus < scsibus_cd.cd_ndevs; bus++)
    306 			if (scsibus_cd.cd_devs[bus])
    307 				scsi_probe_bus(bus, target, lun);
    308 		return (0);
    309 	} else
    310 		return (scsi_probe_bus(bus, target, lun));
    311 }
    312 
    313 /*
    314  * Probe the requested scsi bus. It must be already set up.
    315  * target and lun optionally narrow the search if not -1
    316  */
    317 int
    318 scsi_probe_bus(bus, target, lun)
    319 	int bus, target, lun;
    320 {
    321 	struct scsibus_softc *scsi;
    322 	int maxtarget, mintarget, maxlun, minlun;
    323 	u_int8_t scsi_addr;
    324 	int error;
    325 
    326 	if (bus < 0 || bus >= scsibus_cd.cd_ndevs)
    327 		return (ENXIO);
    328 	scsi = scsibus_cd.cd_devs[bus];
    329 	if (scsi == NULL)
    330 		return (ENXIO);
    331 
    332 	scsi_addr = scsi->adapter_link->scsipi_scsi.adapter_target;
    333 
    334 	if (target == -1) {
    335 		maxtarget = scsi->sc_maxtarget;
    336 		mintarget = 0;
    337 	} else {
    338 		if (target < 0 || target > scsi->sc_maxtarget)
    339 			return (EINVAL);
    340 		maxtarget = mintarget = target;
    341 	}
    342 
    343 	if (lun == -1) {
    344 		maxlun = scsi->sc_maxlun;
    345 		minlun = 0;
    346 	} else {
    347 		if (lun < 0 || lun > scsi->sc_maxlun)
    348 			return (EINVAL);
    349 		maxlun = minlun = lun;
    350 	}
    351 
    352 	if ((error = scsipi_adapter_addref(scsi->adapter_link)) != 0)
    353 		return (error);
    354 	for (target = mintarget; target <= maxtarget; target++) {
    355 		if (target == scsi_addr)
    356 			continue;
    357 		for (lun = minlun; lun <= maxlun; lun++) {
    358 			/*
    359 			 * See if there's a device present, and configure it.
    360 			 */
    361 			if (scsi_probedev(scsi, target, lun) == 0) {
    362 				break;
    363 			}
    364 			/* otherwise something says we should look further */
    365 		}
    366 	}
    367 	scsipi_adapter_delref(scsi->adapter_link);
    368 	return (0);
    369 }
    370 
    371 /*
    372  * Print out autoconfiguration information for a subdevice.
    373  *
    374  * This is a slight abuse of 'standard' autoconfiguration semantics,
    375  * because 'print' functions don't normally print the colon and
    376  * device information.  However, in this case that's better than
    377  * either printing redundant information before the attach message,
    378  * or having the device driver call a special function to print out
    379  * the standard device information.
    380  */
    381 int
    382 scsibusprint(aux, pnp)
    383 	void *aux;
    384 	const char *pnp;
    385 {
    386 	struct scsipibus_attach_args *sa = aux;
    387 	struct scsipi_inquiry_pattern *inqbuf;
    388 	u_int8_t type;
    389 	char *dtype, *qtype;
    390 	char vendor[33], product[65], revision[17];
    391 	int target, lun;
    392 
    393 	if (pnp != NULL)
    394 		printf("%s", pnp);
    395 
    396 	inqbuf = &sa->sa_inqbuf;
    397 
    398 	target = sa->sa_sc_link->scsipi_scsi.target;
    399 	lun = sa->sa_sc_link->scsipi_scsi.lun;
    400 
    401 	type = inqbuf->type & SID_TYPE;
    402 
    403 	/*
    404 	 * Figure out basic device type and qualifier.
    405 	 */
    406 	dtype = 0;
    407 	switch (inqbuf->type & SID_QUAL) {
    408 	case SID_QUAL_LU_OK:
    409 		qtype = "";
    410 		break;
    411 
    412 	case SID_QUAL_LU_OFFLINE:
    413 		qtype = " offline";
    414 		break;
    415 
    416 	case SID_QUAL_RSVD:
    417 	case SID_QUAL_BAD_LU:
    418 		panic("scsibusprint: impossible qualifier");
    419 
    420 	default:
    421 		qtype = "";
    422 		dtype = "vendor-unique";
    423 		break;
    424 	}
    425 	if (dtype == 0)
    426 		dtype = scsipi_dtype(type);
    427 
    428 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
    429 	scsipi_strvis(product, 65, inqbuf->product, 16);
    430 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
    431 
    432 	printf(" target %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
    433 	    target, lun, vendor, product, revision,
    434 	    sa->scsipi_info.scsi_version & SID_ANSII, type, dtype,
    435 	    inqbuf->removable ? "removable" : "fixed", qtype);
    436 
    437 	return (UNCONF);
    438 }
    439 
    440 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    441 	{{T_CDROM, T_REMOV,
    442 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     SDEV_NOLUNS},
    443 	{{T_CDROM, T_REMOV,
    444 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     SDEV_NOLUNS},
    445 	{{T_CDROM, T_REMOV,
    446 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     SDEV_NOLUNS},
    447 	{{T_CDROM, T_REMOV,
    448 	 "DEC     ", "RRD42   (C) DEC ", ""},     SDEV_NOLUNS},
    449 	{{T_CDROM, T_REMOV,
    450 	 "DENON   ", "DRD-25X         ", "V"},    SDEV_NOLUNS},
    451 	{{T_CDROM, T_REMOV,
    452 	 "HP      ", "C4324/C4325     ", ""},     SDEV_NOLUNS},
    453 	{{T_CDROM, T_REMOV,
    454 	 "IMS     ", "CDD521/10       ", "2.06"}, SDEV_NOLUNS},
    455 	{{T_CDROM, T_REMOV,
    456 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, SDEV_NOLUNS},
    457 	{{T_CDROM, T_REMOV,
    458 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     SDEV_NOLUNS},
    459 	{{T_CDROM, T_REMOV,
    460 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  SDEV_NOLUNS},
    461 	{{T_CDROM, T_REMOV,
    462 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     SDEV_NOLUNS},
    463 	{{T_CDROM, T_REMOV,
    464 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     SDEV_NOLUNS},
    465 	{{T_CDROM, T_REMOV,
    466 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     SDEV_NOLUNS},
    467 	{{T_CDROM, T_REMOV,
    468 	 "NEC     ", "CD-ROM DRIVE:841", ""},     SDEV_NOLUNS},
    469 	{{T_CDROM, T_REMOV,
    470 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, SDEV_NOLUNS},
    471 	{{T_CDROM, T_REMOV,
    472 	 "SONY    ", "CD-ROM CDU-541  ", ""},     SDEV_NOLUNS},
    473 	{{T_CDROM, T_REMOV,
    474 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     SDEV_NOLUNS},
    475 	{{T_CDROM, T_REMOV,
    476 	 "SONY    ", "CD-ROM CDU-561  ", ""},     SDEV_NOLUNS},
    477 	{{T_CDROM, T_REMOV,
    478 	 "SONY    ", "CD-ROM CDU-8003A", ""},     SDEV_NOLUNS},
    479 	{{T_CDROM, T_REMOV,
    480 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     SDEV_NOLUNS},
    481 	{{T_CDROM, T_REMOV,
    482 	 "TEAC    ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    483 	{{T_CDROM, T_REMOV,
    484 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, SDEV_NOLUNS},
    485 	{{T_CDROM, T_REMOV,
    486 	 "TEXEL   ", "CD-ROM          ", "1.06"}, SDEV_NOLUNS},
    487 	{{T_CDROM, T_REMOV,
    488 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, SDEV_NOLUNS},
    489 	{{T_CDROM, T_REMOV,
    490 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS},
    491 	{{T_CDROM, T_REMOV,
    492 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, SDEV_NOLUNS},
    493 	{{T_CDROM, T_REMOV,
    494 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"}, SDEV_NOLUNS},
    495 	{{T_CDROM, T_REMOV,
    496 	 "JVC     ", "R2626",            ""},     SDEV_NOLUNS},
    497 	{{T_CDROM, T_REMOV,
    498 	 "YAMAHA", "CRW8424S",           ""},     SDEV_NOLUNS},
    499 	{{T_DIRECT, T_FIXED,
    500 	 "MICROP  ", "1588-15MBSUN0669", ""},     SDEV_AUTOSAVE},
    501 	{{T_DIRECT, T_FIXED,
    502 	 "MICROP  ", "2217-15MQ1091501", ""},     SDEV_NOSYNCCACHE},
    503 	{{T_OPTICAL, T_REMOV,
    504 	 "EPSON   ", "OMD-5010        ", "3.08"}, SDEV_NOLUNS},
    505 
    506 	{{T_DIRECT, T_FIXED,
    507 	"TOSHIBA ", "CD-ROM XM-3401TA", "0283"}, ADEV_CDROM|SDEV_NOLUNS},
    508 	{{T_DIRECT, T_FIXED,
    509 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, SDEV_NOMODESENSE},
    510 	{{T_DIRECT, T_FIXED,
    511 	 "DEC     ", "RZ55     (C) DEC", ""},     SDEV_AUTOSAVE},
    512 	{{T_DIRECT, T_FIXED,
    513 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  SDEV_FORCELUNS|SDEV_AUTOSAVE},
    514 	/* Gives non-media hardware failure in response to start-unit command */
    515 	{{T_DIRECT, T_FIXED,
    516 	 "HITACHI", "DK515C",		"CP16"},  SDEV_NOSTARTUNIT},
    517 	{{T_DIRECT, T_FIXED,
    518 	 "HITACHI", "DK515C",		"CP15"},  SDEV_NOSTARTUNIT},
    519 	{{T_DIRECT, T_FIXED,
    520 	 "HP      ", "C372",             ""},     SDEV_NOTAG},
    521 	{{T_DIRECT, T_FIXED,
    522 	 "IBMRAID ", "0662S",		 ""},     SDEV_AUTOSAVE},
    523 	{{T_DIRECT, T_FIXED,
    524 	 "IBM     ", "0663H",		 ""},     SDEV_AUTOSAVE},
    525 	{{T_DIRECT, T_FIXED,
    526 	 "IBM",	     "0664",		 ""},     SDEV_AUTOSAVE},
    527 	{{T_DIRECT, T_FIXED,
    528 	 "IBM     ", "H3171-S2",	 ""},	  SDEV_NOLUNS|SDEV_AUTOSAVE},
    529 	{{T_DIRECT, T_FIXED,
    530 	 "IBM     ", "KZ-C",		 ""},	  SDEV_AUTOSAVE},
    531 	/* Broken IBM disk */
    532 	{{T_DIRECT, T_FIXED,
    533 	 ""	   , "DFRSS2F",		 ""},	  SDEV_AUTOSAVE},
    534 	{{T_DIRECT, T_REMOV,
    535 	 "MPL     ", "MC-DISK-        ", ""},     SDEV_NOLUNS},
    536 	{{T_DIRECT, T_FIXED,
    537 	 "MAXTOR  ", "XT-3280         ", ""},     SDEV_NOLUNS},
    538 	{{T_DIRECT, T_FIXED,
    539 	 "MAXTOR  ", "XT-4380S        ", ""},     SDEV_NOLUNS},
    540 	{{T_DIRECT, T_FIXED,
    541 	 "MAXTOR  ", "MXT-1240S       ", ""},     SDEV_NOLUNS},
    542 	{{T_DIRECT, T_FIXED,
    543 	 "MAXTOR  ", "XT-4170S        ", ""},     SDEV_NOLUNS},
    544 	{{T_DIRECT, T_FIXED,
    545 	 "MAXTOR  ", "XT-8760S",         ""},     SDEV_NOLUNS},
    546 	{{T_DIRECT, T_FIXED,
    547 	 "MAXTOR  ", "LXT-213S        ", ""},     SDEV_NOLUNS},
    548 	{{T_DIRECT, T_FIXED,
    549 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     SDEV_NOLUNS},
    550 	{{T_DIRECT, T_FIXED,
    551 	 "MAXTOR  ", "LXT-200S        ", ""},     SDEV_NOLUNS},
    552 	{{T_DIRECT, T_FIXED,
    553 	 "MEGADRV ", "EV1000",           ""},     SDEV_NOMODESENSE},
    554 	{{T_DIRECT, T_FIXED,
    555 	 "MST     ", "SnapLink        ", ""},     SDEV_NOLUNS},
    556 	{{T_DIRECT, T_FIXED,
    557 	 "NEC     ", "D3847           ", "0307"}, SDEV_NOLUNS},
    558 	{{T_DIRECT, T_FIXED,
    559 	 "QUANTUM ", "ELS85S          ", ""},     SDEV_AUTOSAVE},
    560 	{{T_DIRECT, T_FIXED,
    561 	 "QUANTUM ", "LPS525S         ", ""},     SDEV_NOLUNS},
    562 	{{T_DIRECT, T_FIXED,
    563 	 "QUANTUM ", "P105S 910-10-94x", ""},     SDEV_NOLUNS},
    564 	{{T_DIRECT, T_FIXED,
    565 	 "QUANTUM ", "PD1225S         ", ""},     SDEV_NOLUNS},
    566 	{{T_DIRECT, T_FIXED,
    567 	 "QUANTUM ", "PD210S   SUN0207", ""},     SDEV_NOLUNS},
    568 	{{T_DIRECT, T_FIXED,
    569 	 "RODIME  ", "RO3000S         ", ""},     SDEV_NOLUNS},
    570 	{{T_DIRECT, T_FIXED,
    571 	 "SEAGATE ", "ST125N          ", ""},     SDEV_NOLUNS},
    572 	{{T_DIRECT, T_FIXED,
    573 	 "SEAGATE ", "ST157N          ", ""},     SDEV_NOLUNS},
    574 	{{T_DIRECT, T_FIXED,
    575 	 "SEAGATE ", "ST296           ", ""},     SDEV_NOLUNS},
    576 	{{T_DIRECT, T_FIXED,
    577 	 "SEAGATE ", "ST296N          ", ""},     SDEV_NOLUNS},
    578 	{{T_DIRECT, T_FIXED,
    579 	 "SEAGATE ", "ST19171",          ""},     SDEV_NOMODESENSE},
    580 	{{T_DIRECT, T_FIXED,
    581 	 "SEAGATE ", "ST34501FC       ", ""},     SDEV_NOMODESENSE},
    582 	{{T_DIRECT, T_FIXED,
    583 	 "TOSHIBA ", "MK538FB         ", "6027"}, SDEV_NOLUNS},
    584 	{{T_DIRECT, T_REMOV,
    585 	 "iomega", "jaz 1GB", 		 ""},	  SDEV_NOMODESENSE},
    586 	{{T_DIRECT, T_REMOV,
    587 	 "IOMEGA", "ZIP 100",		 ""},	  SDEV_NOMODESENSE},
    588 	{{T_DIRECT, T_REMOV,
    589 	 "IOMEGA", "ZIP 100",		 "J.03"}, SDEV_NOMODESENSE|SDEV_NOLUNS},
    590 	/* Letting the motor run kills floppy drives and disks quite fast. */
    591 	{{T_DIRECT, T_REMOV,
    592 	 "TEAC", "FC-1",		 ""},	  SDEV_NOSTARTUNIT},
    593 
    594 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    595 	{{T_SEQUENTIAL, T_REMOV,
    596 	 "        ", "                ", "    "}, SDEV_NOLUNS},
    597 	{{T_SEQUENTIAL, T_REMOV,
    598 	 "CALIPER ", "CP150           ", ""},     SDEV_NOLUNS},
    599 	{{T_SEQUENTIAL, T_REMOV,
    600 	 "EXABYTE ", "EXB-8200        ", ""},     SDEV_NOLUNS},
    601 	{{T_SEQUENTIAL, T_REMOV,
    602 	 "SONY    ", "GY-10C          ", ""},     SDEV_NOLUNS},
    603 	{{T_SEQUENTIAL, T_REMOV,
    604 	 "SONY    ", "SDT-2000        ", "2.09"}, SDEV_NOLUNS},
    605 	{{T_SEQUENTIAL, T_REMOV,
    606 	 "SONY    ", "SDT-5000        ", "3."},   SDEV_NOSYNC|SDEV_NOWIDE},
    607 	{{T_SEQUENTIAL, T_REMOV,
    608 	 "SONY    ", "SDT-5200        ", "3."},   SDEV_NOLUNS},
    609 	{{T_SEQUENTIAL, T_REMOV,
    610 	 "TANDBERG", " TDC 3600       ", ""},     SDEV_NOLUNS},
    611 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    612 	{{T_SEQUENTIAL, T_REMOV,
    613 	 "ARCHIVE ", "VIPER 150  21247", ""},     SDEV_NOLUNS},
    614 	/* Following entry for a Cipher ST150S; ref. PR4171 */
    615 	{{T_SEQUENTIAL, T_REMOV,
    616 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, SDEV_NOLUNS},
    617 	{{T_SEQUENTIAL, T_REMOV,
    618 	 "ARCHIVE ", "Python 28454-XXX", ""},     SDEV_NOLUNS},
    619 	{{T_SEQUENTIAL, T_REMOV,
    620 	 "WANGTEK ", "5099ES SCSI",      ""},     SDEV_NOLUNS},
    621 	{{T_SEQUENTIAL, T_REMOV,
    622 	 "WANGTEK ", "5150ES SCSI",      ""},     SDEV_NOLUNS},
    623 	{{T_SEQUENTIAL, T_REMOV,
    624 	 "WANGTEK ", "SCSI-36",		 ""},     SDEV_NOLUNS},
    625 	{{T_SEQUENTIAL, T_REMOV,
    626 	 "WangDAT ", "Model 1300      ", "02.4"}, SDEV_NOSYNC|SDEV_NOWIDE},
    627 	{{T_SEQUENTIAL, T_REMOV,
    628 	 "WangDAT ", "Model 2600      ", "01.7"}, SDEV_NOSYNC|SDEV_NOWIDE},
    629 	{{T_SEQUENTIAL, T_REMOV,
    630 	 "WangDAT ", "Model 3200      ", "02.2"}, SDEV_NOSYNC|SDEV_NOWIDE},
    631 	{{T_SEQUENTIAL, T_REMOV,
    632 	 "TEAC    ", "MT-2ST/N50      ", ""},     SDEV_NOLUNS},
    633 
    634 	{{T_SCANNER, T_FIXED,
    635 	 "RICOH   ", "IS60            ", "1R08"}, SDEV_NOLUNS},
    636 	{{T_SCANNER, T_FIXED,
    637 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, SDEV_NOLUNS},
    638 	{{T_SCANNER, T_FIXED,
    639 	 "UMAX    ", "Astra 1220S     ", ""}, SDEV_NOLUNS},
    640 	{{T_SCANNER, T_FIXED,
    641 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, SDEV_NOLUNS},
    642 	{{T_SCANNER, T_FIXED,
    643 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, SDEV_NOLUNS},
    644 	{{T_SCANNER, T_FIXED,
    645 	 "ULTIMA  ", "A6000C          ", ""}, SDEV_NOLUNS},
    646 
    647 	{{T_PROCESSOR, T_FIXED,
    648 	 "LITRONIC", "PCMCIA          ", ""},     SDEV_NOLUNS},
    649 
    650 	{{T_CHANGER, T_REMOV,
    651 	 "SONY    ", "CDL1100         ", ""},     SDEV_NOLUNS},
    652 
    653 	{{T_ENCLOSURE, T_FIXED,
    654 	 "SUN     ", "SENA            ", ""},     SDEV_NOLUNS},
    655 };
    656 
    657 /*
    658  * given a target and lun, ask the device what
    659  * it is, and find the correct driver table
    660  * entry.
    661  */
    662 int
    663 scsi_probedev(scsi, target, lun)
    664 	struct scsibus_softc *scsi;
    665 	int target, lun;
    666 {
    667 	struct scsipi_link *sc_link;
    668 	static struct scsipi_inquiry_data inqbuf;
    669 	struct scsi_quirk_inquiry_pattern *finger;
    670 	int checkdtype, priority, docontinue;
    671 	struct scsipibus_attach_args sa;
    672 	struct cfdata *cf;
    673 
    674 	/*
    675 	 * Assume no more luns to search after this one.
    676 	 * If we successfully get Inquiry data and after
    677 	 * merging quirks we find we can probe for more
    678 	 * luns, we will.
    679 	 */
    680 	docontinue = 0;
    681 
    682 	/* Skip this slot if it is already attached. */
    683 	if (scsi->sc_link[target][lun] != NULL)
    684 		return (docontinue);
    685 
    686 	sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT);
    687 	*sc_link = *scsi->adapter_link;
    688 	sc_link->active = 0;
    689 	sc_link->scsipi_scsi.target = target;
    690 	sc_link->scsipi_scsi.lun = lun;
    691 	sc_link->device = &probe_switch;
    692 	TAILQ_INIT(&sc_link->pending_xfers);
    693 
    694 	/*
    695 	 * Ask the device what it is
    696 	 */
    697 #if defined(SCSIDEBUG) && DEBUGTYPE == BUS_SCSI
    698 	if (target == DEBUGTARGET && lun == DEBUGLUN)
    699 		sc_link->flags |= DEBUGLEVEL;
    700 #endif /* SCSIDEBUG */
    701 
    702 	(void) scsipi_test_unit_ready(sc_link,
    703 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    704 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
    705 
    706 #ifdef SCSI_2_DEF
    707 	/* some devices need to be told to go to SCSI2 */
    708 	/* However some just explode if you tell them this.. leave it out */
    709 	scsi_change_def(sc_link, XS_CTL_DISCOVERY | XS_CTL_SILENT);
    710 #endif /* SCSI_2_DEF */
    711 
    712 	/* Now go ask the device all about itself. */
    713 	bzero(&inqbuf, sizeof(inqbuf));
    714 	if (scsipi_inquire(sc_link, &inqbuf, XS_CTL_DISCOVERY) != 0)
    715 		goto bad;
    716 
    717 	{
    718 		int len = inqbuf.additional_length;
    719 		while (len < 3)
    720 			inqbuf.unused[len++] = '\0';
    721 		while (len < 3 + 28)
    722 			inqbuf.unused[len++] = ' ';
    723 	}
    724 
    725 	sa.sa_sc_link = sc_link;
    726 	sa.sa_inqbuf.type = inqbuf.device;
    727 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
    728 	    T_REMOV : T_FIXED;
    729 	sa.sa_inqbuf.vendor = inqbuf.vendor;
    730 	sa.sa_inqbuf.product = inqbuf.product;
    731 	sa.sa_inqbuf.revision = inqbuf.revision;
    732 	sa.scsipi_info.scsi_version = inqbuf.version;
    733 	sa.sa_inqptr = &inqbuf;
    734 
    735 	finger = (struct scsi_quirk_inquiry_pattern *)scsipi_inqmatch(
    736 	    &sa.sa_inqbuf, (caddr_t)scsi_quirk_patterns,
    737 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
    738 	    sizeof(scsi_quirk_patterns[0]), &priority);
    739 
    740 	/*
    741 	 * Based upon the inquiry flags we got back, and if we're
    742 	 * at SCSI-2 or better, set some limiting quirks.
    743 	 */
    744 	if ((inqbuf.version & SID_ANSII) >= 2) {
    745 		if ((inqbuf.flags & SID_CmdQue) == 0)
    746 			sc_link->quirks |= SDEV_NOTAG;
    747 		if ((inqbuf.flags & SID_Sync) == 0)
    748 			sc_link->quirks |= SDEV_NOSYNC;
    749 		if ((inqbuf.flags & SID_WBus16) == 0)
    750 			sc_link->quirks |= SDEV_NOWIDE;
    751 	}
    752 	/*
    753 	 * Now apply any quirks from the table.
    754 	 */
    755 	if (priority != 0)
    756 		sc_link->quirks |= finger->quirks;
    757 	if ((inqbuf.version & SID_ANSII) == 0 &&
    758 	    (sc_link->quirks & SDEV_FORCELUNS) == 0)
    759 		sc_link->quirks |= SDEV_NOLUNS;
    760 	sc_link->scsipi_scsi.scsi_version = inqbuf.version;
    761 
    762 	if ((sc_link->quirks & SDEV_NOLUNS) == 0)
    763 		docontinue = 1;
    764 
    765 	/*
    766 	 * note what BASIC type of device it is
    767 	 */
    768 	if ((inqbuf.dev_qual2 & SID_REMOVABLE) != 0)
    769 		sc_link->flags |= SDEV_REMOVABLE;
    770 
    771 	/*
    772 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    773 	 * is vendor specific and won't match in this switch.
    774 	 * All we do here is throw out bad/negative responses.
    775 	 */
    776 	checkdtype = 0;
    777 	switch (inqbuf.device & SID_QUAL) {
    778 	case SID_QUAL_LU_OK:
    779 	case SID_QUAL_LU_OFFLINE:
    780 		checkdtype = 1;
    781 		break;
    782 
    783 	case SID_QUAL_RSVD:
    784 	case SID_QUAL_BAD_LU:
    785 		goto bad;
    786 
    787 	default:
    788 		break;
    789 	}
    790 	if (checkdtype)
    791 		switch (inqbuf.device & SID_TYPE) {
    792 		case T_DIRECT:
    793 		case T_SEQUENTIAL:
    794 		case T_PRINTER:
    795 		case T_PROCESSOR:
    796 		case T_WORM:
    797 		case T_CDROM:
    798 		case T_SCANNER:
    799 		case T_OPTICAL:
    800 		case T_CHANGER:
    801 		case T_COMM:
    802 		case T_IT8_1:
    803 		case T_IT8_2:
    804 		case T_STORARRAY:
    805 		case T_ENCLOSURE:
    806 		default:
    807 			break;
    808 		case T_NODEVICE:
    809 			goto bad;
    810 		}
    811 
    812 	if ((cf = config_search(scsibussubmatch, (struct device *)scsi,
    813 	    &sa)) != NULL) {
    814 		scsi->sc_link[target][lun] = sc_link;
    815 		config_attach((struct device *)scsi, cf, &sa, scsibusprint);
    816 	} else {
    817 		scsibusprint(&sa, scsi->sc_dev.dv_xname);
    818 		printf(" not configured\n");
    819 		goto bad;
    820 	}
    821 
    822 	return (docontinue);
    823 
    824 bad:
    825 	free(sc_link, M_DEVBUF);
    826 	return (docontinue);
    827 }
    828 
    829 /****** Entry points for user control of the SCSI bus. ******/
    830 
    831 int
    832 scsibusopen(dev, flag, fmt, p)
    833 	dev_t dev;
    834 	int flag, fmt;
    835 	struct proc *p;
    836 {
    837 	struct scsibus_softc *sc;
    838 	int error, unit = minor(dev);
    839 
    840 	if (unit >= scsibus_cd.cd_ndevs ||
    841 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
    842 		return (ENXIO);
    843 
    844 	if (sc->sc_flags & SCSIBUSF_OPEN)
    845 		return (EBUSY);
    846 
    847 	if ((error = scsipi_adapter_addref(sc->adapter_link)) != 0)
    848 		return (error);
    849 
    850 	sc->sc_flags |= SCSIBUSF_OPEN;
    851 
    852 	return (0);
    853 }
    854 
    855 int
    856 scsibusclose(dev, flag, fmt, p)
    857 	dev_t dev;
    858 	int flag, fmt;
    859 	struct proc *p;
    860 {
    861 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    862 
    863 	scsipi_adapter_delref(sc->adapter_link);
    864 
    865 	sc->sc_flags &= ~SCSIBUSF_OPEN;
    866 
    867 	return (0);
    868 }
    869 
    870 int
    871 scsibusioctl(dev, cmd, addr, flag, p)
    872 	dev_t dev;
    873 	u_long cmd;
    874 	caddr_t addr;
    875 	int flag;
    876 	struct proc *p;
    877 {
    878 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    879 	struct scsipi_link *sc_link = sc->adapter_link;
    880 	int error;
    881 
    882 	/*
    883 	 * Enforce write permission for ioctls that change the
    884 	 * state of the bus.  Host adapter specific ioctls must
    885 	 * be checked by the adapter driver.
    886 	 */
    887 	switch (cmd) {
    888 	case SCBUSIOSCAN:
    889 	case SCBUSIORESET:
    890 		if ((flag & FWRITE) == 0)
    891 			return (EBADF);
    892 	}
    893 
    894 	switch (cmd) {
    895 	case SCBUSIOSCAN:
    896 	    {
    897 		struct scbusioscan_args *a =
    898 		    (struct scbusioscan_args *)addr;
    899 
    900 		/* XXX Change interface to this function. */
    901 		error = scsi_probe_busses(minor(dev), a->sa_target,
    902 		    a->sa_lun);
    903 		break;
    904 	    }
    905 
    906 	case SCBUSIORESET:
    907 		/* FALLTHROUGH */
    908 	default:
    909 		if (sc_link->adapter->scsipi_ioctl == NULL)
    910 			error = ENOTTY;
    911 		else
    912 			error = (*sc_link->adapter->scsipi_ioctl)(sc_link,
    913 			    cmd, addr, flag, p);
    914 		break;
    915 	}
    916 
    917 	return (error);
    918 }
    919