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scsiconf.c revision 1.130.2.1
      1 /*	$NetBSD: scsiconf.c,v 1.130.2.1 1999/10/19 17:39:33 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 1999 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/kthread.h>
     63 #include <sys/malloc.h>
     64 #include <sys/device.h>
     65 #include <sys/conf.h>
     66 #include <sys/fcntl.h>
     67 #include <sys/scsiio.h>
     68 
     69 #include <dev/scsipi/scsi_all.h>
     70 #include <dev/scsipi/scsipi_all.h>
     71 #include <dev/scsipi/scsiconf.h>
     72 
     73 #include "locators.h"
     74 
     75 const struct scsipi_periphsw scsi_probe_dev = {
     76 	NULL,
     77 	NULL,
     78 	NULL,
     79 	NULL,
     80 };
     81 
     82 int	scsi_probe_device __P((struct scsibus_softc *, int, int));
     83 
     84 int	scsibusmatch __P((struct device *, struct cfdata *, void *));
     85 void	scsibusattach __P((struct device *, struct device *, void *));
     86 int	scsibusactivate __P((struct device *, enum devact));
     87 int	scsibusdetach __P((struct device *, int flags));
     88 
     89 int	scsibussubmatch __P((struct device *, struct cfdata *, void *));
     90 
     91 struct cfattach scsibus_ca = {
     92 	sizeof(struct scsibus_softc), scsibusmatch, scsibusattach,
     93 	    scsibusdetach, scsibusactivate,
     94 };
     95 
     96 extern struct cfdriver scsibus_cd;
     97 
     98 int	scsibusprint __P((void *, const char *));
     99 void	scsibus_config_interrupts __P((struct device *));
    100 
    101 cdev_decl(scsibus);
    102 
    103 const struct scsipi_bustype scsi_bustype = {
    104 	SCSIPI_BUSTYPE_SCSI,
    105 	scsi_scsipi_cmd,
    106 	scsipi_interpret_sense,
    107 	scsi_print_addr,
    108 };
    109 
    110 int
    111 scsiprint(aux, pnp)
    112 	void *aux;
    113 	const char *pnp;
    114 {
    115 	struct scsipi_channel *chan = aux;
    116 	struct scsipi_adapter *adapt = chan->chan_adapter;
    117 
    118 	/* only "scsibus"es can attach to "scsi"s; easy. */
    119 	if (pnp)
    120 		printf("scsibus at %s", pnp);
    121 
    122 	/* don't print channel if the controller says there can be only one. */
    123 	if (adapt->adapt_nchannels != 1)
    124 		printf(" channel %d", chan->chan_channel);
    125 
    126 	return (UNCONF);
    127 }
    128 
    129 int
    130 scsibusmatch(parent, cf, aux)
    131 	struct device *parent;
    132 	struct cfdata *cf;
    133 	void *aux;
    134 {
    135 	struct scsipi_channel *chan = aux;
    136 
    137 	if (cf->cf_loc[SCSICF_CHANNEL] != chan->chan_channel &&
    138 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
    139 		return (0);
    140 
    141 	return (1);
    142 }
    143 
    144 void
    145 scsibusattach(parent, self, aux)
    146 	struct device *parent, *self;
    147 	void *aux;
    148 {
    149 	struct scsibus_softc *sc = (void *) self;
    150 	struct scsipi_channel *chan = aux;
    151 
    152 	sc->sc_channel = chan;
    153 
    154 	printf(": %d targets, %d luns per target\n",
    155 	    chan->chan_ntargets, chan->chan_nluns);
    156 
    157 	/* Initialize the channel. */
    158 	scsipi_channel_init(chan);
    159 
    160 	/*
    161 	 * Defer configuration of the children until interrupts
    162 	 * are enabled.
    163 	 */
    164 	config_interrupts(self, scsibus_config_interrupts);
    165 }
    166 
    167 void
    168 scsibus_config_interrupts(self)
    169 	struct device *self;
    170 {
    171 	struct scsibus_softc *sc = (void *) self;
    172 
    173 #if defined(SCSI_DELAY) && SCSI_DELAY > 2
    174 #else	/* SCSI_DELAY > 2 */
    175 #undef	SCSI_DELAY
    176 #define SCSI_DELAY 2
    177 #endif	/* SCSI_DELAY */
    178 
    179 	if (SCSI_DELAY > 0) {
    180 		printf("%s: waiting %d seconds for devices to settle...\n",
    181 		    self->dv_xname, SCSI_DELAY);
    182 		/* ...an identifier we know no one will use... */
    183 		(void) tsleep(scsibus_config_interrupts, PRIBIO,
    184 		    "scsidly", SCSI_DELAY * hz);
    185 	}
    186 
    187 	scsi_probe_bus(sc, -1, -1);
    188 }
    189 
    190 int
    191 scsibussubmatch(parent, cf, aux)
    192 	struct device *parent;
    193 	struct cfdata *cf;
    194 	void *aux;
    195 {
    196 	struct scsipibus_attach_args *sa = aux;
    197 	struct scsipi_periph *periph = sa->sa_periph;
    198 
    199 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
    200 	    cf->cf_loc[SCSIBUSCF_TARGET] != periph->periph_target)
    201 		return (0);
    202 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
    203 	    cf->cf_loc[SCSIBUSCF_LUN] != periph->periph_lun)
    204 		return (0);
    205 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    206 }
    207 
    208 int
    209 scsibusactivate(self, act)
    210 	struct device *self;
    211 	enum devact act;
    212 {
    213 	struct scsibus_softc *sc = (void *) self;
    214 	struct scsipi_channel *chan = sc->sc_channel;
    215 	struct scsipi_periph *periph;
    216 	int target, lun, error = 0, s;
    217 
    218 	s = splbio();
    219 	switch (act) {
    220 	case DVACT_ACTIVATE:
    221 		error = EOPNOTSUPP;
    222 		break;
    223 
    224 	case DVACT_DEACTIVATE:
    225 		for (target = 0; target < chan->chan_ntargets;
    226 		     target++) {
    227 			if (target == chan->chan_id)
    228 				continue;
    229 			for (lun = 0; lun < chan->chan_nluns; lun++) {
    230 				periph = chan->chan_periphs[target][lun];
    231 				if (periph == NULL)
    232 					continue;
    233 				error = config_deactivate(periph->periph_dev);
    234 				if (error)
    235 					goto out;
    236 			}
    237 		}
    238 		break;
    239 	}
    240  out:
    241 	splx(s);
    242 	return (error);
    243 }
    244 
    245 int
    246 scsibusdetach(self, flags)
    247 	struct device *self;
    248 	int flags;
    249 {
    250 	struct scsibus_softc *sc = (void *) self;
    251 	struct scsipi_channel *chan = sc->sc_channel;
    252 	struct scsipi_periph *periph;
    253 	int target, lun, error;
    254 
    255 	for (target = 0; target < chan->chan_ntargets; target++) {
    256 		if (target == chan->chan_id)
    257 			continue;
    258 		for (lun = 0; lun < chan->chan_nluns; lun++) {
    259 			periph = chan->chan_periphs[target][lun];
    260 			if (periph == NULL)
    261 				continue;
    262 			error = config_detach(periph->periph_dev, flags);
    263 			if (error)
    264 				return (error);
    265 			free(periph, M_DEVBUF);
    266 			chan->chan_periphs[target][lun] = NULL;
    267 		}
    268 	}
    269 	return (0);
    270 }
    271 
    272 /*
    273  * Probe the requested scsi bus. It must be already set up.
    274  * target and lun optionally narrow the search if not -1
    275  */
    276 int
    277 scsi_probe_bus(sc, target, lun)
    278 	struct scsibus_softc *sc;
    279 	int target, lun;
    280 {
    281 	struct scsipi_channel *chan = sc->sc_channel;
    282 	int maxtarget, mintarget, maxlun, minlun;
    283 	int error;
    284 
    285 	if (target == -1) {
    286 		maxtarget = chan->chan_ntargets - 1;
    287 		mintarget = 0;
    288 	} else {
    289 		if (target < 0 || target >= chan->chan_ntargets)
    290 			return (EINVAL);
    291 		maxtarget = mintarget = target;
    292 	}
    293 
    294 	if (lun == -1) {
    295 		maxlun = chan->chan_nluns - 1;
    296 		minlun = 0;
    297 	} else {
    298 		if (lun < 0 || lun >= chan->chan_nluns)
    299 			return (EINVAL);
    300 		maxlun = minlun = lun;
    301 	}
    302 
    303 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    304 		return (error);
    305 	for (target = mintarget; target <= maxtarget; target++) {
    306 		if (target == chan->chan_id)
    307 			continue;
    308 		for (lun = minlun; lun <= maxlun; lun++) {
    309 			/*
    310 			 * See if there's a device present, and configure it.
    311 			 */
    312 			if (scsi_probe_device(sc, target, lun) == 0)
    313 				break;
    314 			/* otherwise something says we should look further */
    315 		}
    316 	}
    317 	scsipi_adapter_delref(chan->chan_adapter);
    318 	return (0);
    319 }
    320 
    321 /*
    322  * Print out autoconfiguration information for a subdevice.
    323  *
    324  * This is a slight abuse of 'standard' autoconfiguration semantics,
    325  * because 'print' functions don't normally print the colon and
    326  * device information.  However, in this case that's better than
    327  * either printing redundant information before the attach message,
    328  * or having the device driver call a special function to print out
    329  * the standard device information.
    330  */
    331 int
    332 scsibusprint(aux, pnp)
    333 	void *aux;
    334 	const char *pnp;
    335 {
    336 	struct scsipibus_attach_args *sa = aux;
    337 	struct scsipi_inquiry_pattern *inqbuf;
    338 	u_int8_t type;
    339 	const char *dtype, *qtype;
    340 	char vendor[33], product[65], revision[17];
    341 	int target, lun;
    342 
    343 	if (pnp != NULL)
    344 		printf("%s", pnp);
    345 
    346 	inqbuf = &sa->sa_inqbuf;
    347 
    348 	target = sa->sa_periph->periph_target;
    349 	lun = sa->sa_periph->periph_lun;
    350 	type = inqbuf->type & SID_TYPE;
    351 
    352 	/*
    353 	 * Figure out basic device type and qualifier.
    354 	 */
    355 	dtype = 0;
    356 	switch (inqbuf->type & SID_QUAL) {
    357 	case SID_QUAL_LU_PRESENT:
    358 		qtype = "";
    359 		break;
    360 
    361 	case SID_QUAL_LU_NOTPRESENT:
    362 		qtype = " offline";
    363 		break;
    364 
    365 	case SID_QUAL_reserved:
    366 	case SID_QUAL_LU_NOT_SUPP:
    367 		panic("scsibusprint: impossible qualifier");
    368 
    369 	default:
    370 		qtype = "";
    371 		dtype = "vendor-unique";
    372 		break;
    373 	}
    374 	if (dtype == NULL)
    375 		dtype = scsipi_dtype(type);
    376 
    377 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
    378 	scsipi_strvis(product, 65, inqbuf->product, 16);
    379 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
    380 
    381 	printf(" target %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
    382 	    target, lun, vendor, product, revision,
    383 	    sa->scsipi_info.scsi_version & SID_ANSII, type, dtype,
    384 	    inqbuf->removable ? "removable" : "fixed", qtype);
    385 
    386 	return (UNCONF);
    387 }
    388 
    389 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    390 	{{T_CDROM, T_REMOV,
    391 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     PQUIRK_NOLUNS},
    392 	{{T_CDROM, T_REMOV,
    393 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     PQUIRK_NOLUNS},
    394 	{{T_CDROM, T_REMOV,
    395 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     PQUIRK_NOLUNS},
    396 	{{T_CDROM, T_REMOV,
    397 	 "DEC     ", "RRD42   (C) DEC ", ""},     PQUIRK_NOLUNS},
    398 	{{T_CDROM, T_REMOV,
    399 	 "DENON   ", "DRD-25X         ", "V"},    PQUIRK_NOLUNS},
    400 	{{T_CDROM, T_REMOV,
    401 	 "HP      ", "C4324/C4325     ", ""},     PQUIRK_NOLUNS},
    402 	{{T_CDROM, T_REMOV,
    403 	 "IMS     ", "CDD521/10       ", "2.06"}, PQUIRK_NOLUNS},
    404 	{{T_CDROM, T_REMOV,
    405 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, PQUIRK_NOLUNS},
    406 	{{T_CDROM, T_REMOV,
    407 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     PQUIRK_NOLUNS},
    408 	{{T_CDROM, T_REMOV,
    409 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  PQUIRK_NOLUNS},
    410 	{{T_CDROM, T_REMOV,
    411 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     PQUIRK_NOLUNS},
    412 	{{T_CDROM, T_REMOV,
    413 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     PQUIRK_NOLUNS},
    414 	{{T_CDROM, T_REMOV,
    415 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     PQUIRK_NOLUNS},
    416 	{{T_CDROM, T_REMOV,
    417 	 "NEC     ", "CD-ROM DRIVE:841", ""},     PQUIRK_NOLUNS},
    418 	{{T_CDROM, T_REMOV,
    419 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, PQUIRK_NOLUNS},
    420 	{{T_CDROM, T_REMOV,
    421 	 "SONY    ", "CD-ROM CDU-541  ", ""},     PQUIRK_NOLUNS},
    422 	{{T_CDROM, T_REMOV,
    423 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     PQUIRK_NOLUNS},
    424 	{{T_CDROM, T_REMOV,
    425 	 "SONY    ", "CD-ROM CDU-561  ", ""},     PQUIRK_NOLUNS},
    426 	{{T_CDROM, T_REMOV,
    427 	 "SONY    ", "CD-ROM CDU-8003A", ""},     PQUIRK_NOLUNS},
    428 	{{T_CDROM, T_REMOV,
    429 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     PQUIRK_NOLUNS},
    430 	{{T_CDROM, T_REMOV,
    431 	 "TEAC    ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    432 	{{T_CDROM, T_REMOV,
    433 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, PQUIRK_NOLUNS},
    434 	{{T_CDROM, T_REMOV,
    435 	 "TEXEL   ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    436 	{{T_CDROM, T_REMOV,
    437 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, PQUIRK_NOLUNS},
    438 	{{T_CDROM, T_REMOV,
    439 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, PQUIRK_NOLUNS},
    440 	{{T_CDROM, T_REMOV,
    441 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, PQUIRK_NOLUNS},
    442 	{{T_CDROM, T_REMOV,
    443 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"},   PQUIRK_NOLUNS},
    444 	{{T_CDROM, T_REMOV,
    445 	 "JVC     ", "R2626",            ""},     PQUIRK_NOLUNS},
    446 	{{T_DIRECT, T_FIXED,
    447 	 "MICROP  ", "1588-15MBSUN0669", ""},     PQUIRK_AUTOSAVE},
    448 	{{T_DIRECT, T_FIXED,
    449 	 "MICROP  ", "2217-15MQ1091501", ""},     PQUIRK_NOSYNCCACHE},
    450 	{{T_OPTICAL, T_REMOV,
    451 	 "EPSON   ", "OMD-5010        ", "3.08"}, PQUIRK_NOLUNS},
    452 
    453 	{{T_DIRECT, T_FIXED,
    454 	 "TOSHIBA ","CD-ROM XM-3401TA", "0283"},  PQUIRK_CDROM|PQUIRK_NOLUNS},
    455 	{{T_DIRECT, T_FIXED,
    456 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, PQUIRK_NOMODESENSE},
    457 	{{T_DIRECT, T_FIXED,
    458 	 "DEC     ", "RZ55     (C) DEC", ""},     PQUIRK_AUTOSAVE},
    459 	{{T_DIRECT, T_FIXED,
    460 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE},
    461 	/* Gives non-media hardware failure in response to start-unit command */
    462 	{{T_DIRECT, T_FIXED,
    463 	 "HITACHI", "DK515C",		"CP16"},  PQUIRK_NOSTARTUNIT},
    464 	{{T_DIRECT, T_FIXED,
    465 	 "HITACHI", "DK515C",		"CP15"},  PQUIRK_NOSTARTUNIT},
    466 	{{T_DIRECT, T_FIXED,
    467 	 "HP      ", "C372",             ""},     PQUIRK_NOTAG},
    468 	{{T_DIRECT, T_FIXED,
    469 	 "IBMRAID ", "0662S",		 ""},     PQUIRK_AUTOSAVE},
    470 	{{T_DIRECT, T_FIXED,
    471 	 "IBM     ", "0663H",		 ""},     PQUIRK_AUTOSAVE},
    472 	{{T_DIRECT, T_FIXED,
    473 	 "IBM",	     "0664",		 ""},     PQUIRK_AUTOSAVE},
    474 	{{T_DIRECT, T_FIXED,
    475 	 "IBM     ", "H3171-S2",	 ""},	  PQUIRK_NOLUNS|PQUIRK_AUTOSAVE},
    476 	{{T_DIRECT, T_FIXED,
    477 	 "IBM     ", "KZ-C",		 ""},	  PQUIRK_AUTOSAVE},
    478 	/* Broken IBM disk */
    479 	{{T_DIRECT, T_FIXED,
    480 	 ""	   , "DFRSS2F",		 ""},	  PQUIRK_AUTOSAVE},
    481 	{{T_DIRECT, T_REMOV,
    482 	 "MPL     ", "MC-DISK-        ", ""},     PQUIRK_NOLUNS},
    483 	{{T_DIRECT, T_FIXED,
    484 	 "MAXTOR  ", "XT-3280         ", ""},     PQUIRK_NOLUNS},
    485 	{{T_DIRECT, T_FIXED,
    486 	 "MAXTOR  ", "XT-4380S        ", ""},     PQUIRK_NOLUNS},
    487 	{{T_DIRECT, T_FIXED,
    488 	 "MAXTOR  ", "MXT-1240S       ", ""},     PQUIRK_NOLUNS},
    489 	{{T_DIRECT, T_FIXED,
    490 	 "MAXTOR  ", "XT-4170S        ", ""},     PQUIRK_NOLUNS},
    491 	{{T_DIRECT, T_FIXED,
    492 	 "MAXTOR  ", "XT-8760S",         ""},     PQUIRK_NOLUNS},
    493 	{{T_DIRECT, T_FIXED,
    494 	 "MAXTOR  ", "LXT-213S        ", ""},     PQUIRK_NOLUNS},
    495 	{{T_DIRECT, T_FIXED,
    496 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     PQUIRK_NOLUNS},
    497 	{{T_DIRECT, T_FIXED,
    498 	 "MAXTOR  ", "LXT-200S        ", ""},     PQUIRK_NOLUNS},
    499 	{{T_DIRECT, T_FIXED,
    500 	 "MEGADRV ", "EV1000",           ""},     PQUIRK_NOMODESENSE},
    501 	{{T_DIRECT, T_FIXED,
    502 	 "MST     ", "SnapLink        ", ""},     PQUIRK_NOLUNS},
    503 	{{T_DIRECT, T_FIXED,
    504 	 "NEC     ", "D3847           ", "0307"}, PQUIRK_NOLUNS},
    505 	{{T_DIRECT, T_FIXED,
    506 	 "QUANTUM ", "ELS85S          ", ""},     PQUIRK_AUTOSAVE},
    507 	{{T_DIRECT, T_FIXED,
    508 	 "QUANTUM ", "LPS525S         ", ""},     PQUIRK_NOLUNS},
    509 	{{T_DIRECT, T_FIXED,
    510 	 "QUANTUM ", "P105S 910-10-94x", ""},     PQUIRK_NOLUNS},
    511 	{{T_DIRECT, T_FIXED,
    512 	 "QUANTUM ", "PD1225S         ", ""},     PQUIRK_NOLUNS},
    513 	{{T_DIRECT, T_FIXED,
    514 	 "QUANTUM ", "PD210S   SUN0207", ""},     PQUIRK_NOLUNS},
    515 	{{T_DIRECT, T_FIXED,
    516 	 "RODIME  ", "RO3000S         ", ""},     PQUIRK_NOLUNS},
    517 	{{T_DIRECT, T_FIXED,
    518 	 "SEAGATE ", "ST125N          ", ""},     PQUIRK_NOLUNS},
    519 	{{T_DIRECT, T_FIXED,
    520 	 "SEAGATE ", "ST157N          ", ""},     PQUIRK_NOLUNS},
    521 	{{T_DIRECT, T_FIXED,
    522 	 "SEAGATE ", "ST296           ", ""},     PQUIRK_NOLUNS},
    523 	{{T_DIRECT, T_FIXED,
    524 	 "SEAGATE ", "ST296N          ", ""},     PQUIRK_NOLUNS},
    525 	{{T_DIRECT, T_FIXED,
    526 	 "SEAGATE ", "ST19171",          ""},     PQUIRK_NOMODESENSE},
    527 	{{T_DIRECT, T_FIXED,
    528 	 "SEAGATE ", "ST34501FC       ", ""},     PQUIRK_NOMODESENSE},
    529 	{{T_DIRECT, T_FIXED,
    530 	 "TOSHIBA ", "MK538FB         ", "6027"}, PQUIRK_NOLUNS},
    531 	{{T_DIRECT, T_REMOV,
    532 	 "iomega", "jaz 1GB", 		 ""},	  PQUIRK_NOMODESENSE},
    533 	{{T_DIRECT, T_REMOV,
    534 	 "IOMEGA", "ZIP 100",		 ""},	  PQUIRK_NOMODESENSE},
    535 	{{T_DIRECT, T_REMOV,
    536 	 "IOMEGA", "ZIP 100",		 "J.03"}, PQUIRK_NOMODESENSE|PQUIRK_NOLUNS},
    537 	/* Letting the motor run kills floppy drives and disks quite fast. */
    538 	{{T_DIRECT, T_REMOV,
    539 	 "TEAC", "FC-1",		 ""},	  PQUIRK_NOSTARTUNIT},
    540 
    541 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    542 	{{T_SEQUENTIAL, T_REMOV,
    543 	 "        ", "                ", "    "}, PQUIRK_NOLUNS},
    544 	{{T_SEQUENTIAL, T_REMOV,
    545 	 "CALIPER ", "CP150           ", ""},     PQUIRK_NOLUNS},
    546 	{{T_SEQUENTIAL, T_REMOV,
    547 	 "EXABYTE ", "EXB-8200        ", ""},     PQUIRK_NOLUNS},
    548 	{{T_SEQUENTIAL, T_REMOV,
    549 	 "SONY    ", "GY-10C          ", ""},     PQUIRK_NOLUNS},
    550 	{{T_SEQUENTIAL, T_REMOV,
    551 	 "SONY    ", "SDT-2000        ", "2.09"}, PQUIRK_NOLUNS},
    552 	{{T_SEQUENTIAL, T_REMOV,
    553 	 "SONY    ", "SDT-5000        ", "3."},   PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    554 	{{T_SEQUENTIAL, T_REMOV,
    555 	 "SONY    ", "SDT-5200        ", "3."},   PQUIRK_NOLUNS},
    556 	{{T_SEQUENTIAL, T_REMOV,
    557 	 "TANDBERG", " TDC 3600       ", ""},     PQUIRK_NOLUNS},
    558 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    559 	{{T_SEQUENTIAL, T_REMOV,
    560 	 "ARCHIVE ", "VIPER 150  21247", ""},     PQUIRK_NOLUNS},
    561 	/* Following entry for a Cipher ST150S; ref. PR4171 */
    562 	{{T_SEQUENTIAL, T_REMOV,
    563 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, PQUIRK_NOLUNS},
    564 	{{T_SEQUENTIAL, T_REMOV,
    565 	 "ARCHIVE ", "Python 28454-XXX", ""},     PQUIRK_NOLUNS},
    566 	{{T_SEQUENTIAL, T_REMOV,
    567 	 "WANGTEK ", "5099ES SCSI",      ""},     PQUIRK_NOLUNS},
    568 	{{T_SEQUENTIAL, T_REMOV,
    569 	 "WANGTEK ", "5150ES SCSI",      ""},     PQUIRK_NOLUNS},
    570 	{{T_SEQUENTIAL, T_REMOV,
    571 	 "WANGTEK ", "SCSI-36",		 ""},     PQUIRK_NOLUNS},
    572 	{{T_SEQUENTIAL, T_REMOV,
    573 	 "WangDAT ", "Model 1300      ", "02.4"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    574 	{{T_SEQUENTIAL, T_REMOV,
    575 	 "WangDAT ", "Model 2600      ", "01.7"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    576 	{{T_SEQUENTIAL, T_REMOV,
    577 	 "WangDAT ", "Model 3200      ", "02.2"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    578 
    579 	{{T_SCANNER, T_FIXED,
    580 	 "RICOH   ", "IS60            ", "1R08"}, PQUIRK_NOLUNS},
    581 	{{T_SCANNER, T_FIXED,
    582 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, PQUIRK_NOLUNS},
    583 	{{T_SCANNER, T_FIXED,
    584 	 "UMAX    ", "Astra 1220S     ", ""},     PQUIRK_NOLUNS},
    585 	{{T_SCANNER, T_FIXED,
    586 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, PQUIRK_NOLUNS},
    587 	{{T_SCANNER, T_FIXED,
    588 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, PQUIRK_NOLUNS},
    589 
    590 	{{T_PROCESSOR, T_FIXED,
    591 	 "LITRONIC", "PCMCIA          ", ""},     PQUIRK_NOLUNS},
    592 
    593 	{{T_CHANGER, T_REMOV,
    594 	 "SONY    ", "CDL1100         ", ""},     PQUIRK_NOLUNS},
    595 
    596 	{{T_ENCLOSURE, T_FIXED,
    597 	 "SUN     ", "SENA            ", "1.07"}, PQUIRK_NOLUNS},
    598 };
    599 
    600 /*
    601  * given a target and lun, ask the device what
    602  * it is, and find the correct driver table
    603  * entry.
    604  */
    605 int
    606 scsi_probe_device(sc, target, lun)
    607 	struct scsibus_softc *sc;
    608 	int target, lun;
    609 {
    610 	struct scsipi_channel *chan = sc->sc_channel;
    611 	struct scsipi_periph *periph;
    612 	struct scsipi_inquiry_data inqbuf;
    613 	struct scsi_quirk_inquiry_pattern *finger;
    614 	int i, checkdtype, priority, docontinue, quirks, s;
    615 	struct scsipibus_attach_args sa;
    616 	struct cfdata *cf;
    617 
    618 	/*
    619 	 * Assume no more luns to search after this one.
    620 	 * If we successfully get Inquiry data and after
    621 	 * merging quirks we find we can probe for more
    622 	 * luns, we will.
    623 	 */
    624 	docontinue = 0;
    625 
    626 	/* Skip this slot if it is already attached. */
    627 	if (chan->chan_periphs[target][lun] != NULL)
    628 		return (docontinue);
    629 
    630 	periph = malloc(sizeof(*periph), M_DEVBUF, M_WAITOK);
    631 	memset(periph, 0, sizeof(*periph));
    632 
    633 	periph->periph_dev = NULL;
    634 	periph->periph_channel = chan;
    635 	periph->periph_switch = &scsi_probe_dev;
    636 
    637 	/*
    638 	 * Start with one command opening.  The periph driver
    639 	 * will grow this if it knows it can take advantage of it.
    640 	 */
    641 	periph->periph_openings = 1;
    642 	periph->periph_active = 0;
    643 
    644 	periph->periph_target = target;
    645 	periph->periph_lun = lun;
    646 
    647 	for (i = 0; i < PERIPH_NTAGWORDS; i++)
    648 		periph->periph_freetags[i] = 0xffffffff;
    649 
    650 	TAILQ_INIT(&periph->periph_xferq);
    651 
    652 	/*
    653 	 * Ask the device what it is
    654 	 */
    655 #if defined(SCSIDEBUG) && DEBUGTYPE == BUS_SCSI
    656 	if (target == DEBUGTARGET && lun == DEBUGLUN)
    657 		sc_link->flags |= DEBUGLEVEL;
    658 #endif /* SCSIDEBUG */
    659 
    660 	(void) scsipi_test_unit_ready(periph,
    661 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    662 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
    663 
    664 #ifdef SCSI_2_DEF
    665 	/* some devices need to be told to go to SCSI2 */
    666 	/* However some just explode if you tell them this.. leave it out */
    667 	scsi_change_def(periph, XS_CTL_DISCOVERY | XS_CTL_SILENT);
    668 #endif /* SCSI_2_DEF */
    669 
    670 	/* Now go ask the device all about itself. */
    671 	memset(&inqbuf, 0, sizeof(inqbuf));
    672 	if (scsipi_inquire(periph, &inqbuf, XS_CTL_DISCOVERY) != 0)
    673 		goto bad;
    674 	{
    675 		int len = inqbuf.additional_length;
    676 		while (len < 3)
    677 			inqbuf.unused[len++] = '\0';
    678 		while (len < 3 + 28)
    679 			inqbuf.unused[len++] = ' ';
    680 	}
    681 
    682 	periph->periph_type = inqbuf.device & SID_TYPE;
    683 	if (inqbuf.dev_qual2 & SID_REMOVABLE)
    684 		periph->periph_flags |= PERIPH_REMOVABLE;
    685 	periph->periph_version = inqbuf.version & SID_ANSII;
    686 
    687 	/*
    688 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    689 	 * is vendor specific and won't match in this switch.
    690 	 * All we do here is throw out bad/negative responses.
    691 	 */
    692 	checkdtype = 0;
    693 	switch (inqbuf.device & SID_QUAL) {
    694 	case SID_QUAL_LU_PRESENT:
    695 	case SID_QUAL_LU_NOTPRESENT:
    696 		checkdtype = 1;
    697 		break;
    698 
    699 	case SID_QUAL_reserved:
    700 	case SID_QUAL_LU_NOT_SUPP:
    701 		goto bad;
    702 
    703 	default:
    704 		break;
    705 	}
    706 	if (checkdtype) {
    707 		switch (periph->periph_type) {
    708 		case T_DIRECT:
    709 		case T_SEQUENTIAL:
    710 		case T_PRINTER:
    711 		case T_PROCESSOR:
    712 		case T_WORM:
    713 		case T_CDROM:
    714 		case T_SCANNER:
    715 		case T_OPTICAL:
    716 		case T_CHANGER:
    717 		case T_COMM:
    718 		case T_IT8_1:
    719 		case T_IT8_2:
    720 		case T_STORARRAY:
    721 		case T_ENCLOSURE:
    722 		default:
    723 			break;
    724 		case T_NODEVICE:
    725 			goto bad;
    726 		}
    727 	}
    728 
    729 	sa.sa_periph = periph;
    730 	sa.sa_inqbuf.type = inqbuf.device;
    731 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
    732 	    T_REMOV : T_FIXED;
    733 	sa.sa_inqbuf.vendor = inqbuf.vendor;
    734 	sa.sa_inqbuf.product = inqbuf.product;
    735 	sa.sa_inqbuf.revision = inqbuf.revision;
    736 	sa.scsipi_info.scsi_version = inqbuf.version;
    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 	if (finger != NULL)
    744 		quirks = finger->quirks;
    745 	else
    746 		quirks = 0;
    747 
    748 	/*
    749 	 * Determine the operating mode capabilities of the device.
    750 	 */
    751 	if (periph->periph_version >= 2) {
    752 		if ((inqbuf.flags & SID_CmdQue) != 0 &&
    753 		    (quirks & PQUIRK_NOTAG) == 0)
    754 			periph->periph_cap |= PERIPH_CAP_TQING;
    755 		if ((inqbuf.flags & SID_Linked) != 0)
    756 			periph->periph_cap |= PERIPH_CAP_LINKCMDS;
    757 		if ((inqbuf.flags & SID_Sync) != 0 &&
    758 		    (quirks & PQUIRK_NOSYNC) == 0)
    759 			periph->periph_cap |= PERIPH_CAP_SYNC;
    760 		if ((inqbuf.flags & SID_WBus16) != 0 &&
    761 		    (quirks & PQUIRK_NOWIDE) == 0)
    762 			periph->periph_cap |= PERIPH_CAP_WIDE16;
    763 		if ((inqbuf.flags & SID_WBus32) != 0 &&
    764 		    (quirks & PQUIRK_NOWIDE) == 0)
    765 			periph->periph_cap |= PERIPH_CAP_WIDE32;
    766 		if ((inqbuf.flags & SID_SftRe) != 0)
    767 			periph->periph_cap |= PERIPH_CAP_SFTRESET;
    768 		if ((inqbuf.flags & SID_RelAdr) != 0)
    769 			periph->periph_cap |= PERIPH_CAP_RELADR;
    770 	}
    771 
    772 	/*
    773 	 * Now apply any quirks from the table.
    774 	 */
    775 	periph->periph_quirks |= quirks;
    776 	if (periph->periph_version == 0 &&
    777 	    (periph->periph_quirks & PQUIRK_FORCELUNS) == 0)
    778 		periph->periph_quirks |= PQUIRK_NOLUNS;
    779 
    780 	if ((periph->periph_quirks & PQUIRK_NOLUNS) == 0)
    781 		docontinue = 1;
    782 
    783 	if ((cf = config_search(scsibussubmatch, &sc->sc_dev, &sa)) != NULL) {
    784 		chan->chan_periphs[target][lun] = periph;
    785 		/*
    786 		 * XXX Can't assign periph_dev here, because we'll
    787 		 * XXX need it before config_attach() returns.  Must
    788 		 * XXX assign it in periph driver.
    789 		 */
    790 		(void) config_attach(&sc->sc_dev, cf, &sa, scsibusprint);
    791 
    792 		if (lun == 0) {
    793 			/*
    794 			 * Issue a request to the adapter to negotiate the best
    795 			 * possible xfer mode given our capabilities.
    796 			 */
    797 			s = splbio();
    798 			scsipi_adapter_request(chan, ADAPTER_REQ_SET_XFER_MODE,
    799 			    periph);
    800 			splx(s);
    801 
    802 			/*
    803 			 * Issue a dummy command; some adapters can only really
    804 			 * do xfer mode negotiation when performing a command.
    805 			 */
    806 			(void) scsipi_test_unit_ready(periph,
    807 			    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    808 			    XS_CTL_IGNORE_NOT_READY |
    809 			    XS_CTL_IGNORE_MEDIA_CHANGE);
    810 
    811 			/*
    812 			 * Now get the xfer mode settings.
    813 			 */
    814 			s = splbio();
    815 			scsipi_adapter_request(chan, ADAPTER_REQ_GET_XFER_MODE,
    816 			    periph);
    817 			splx(s);
    818 		} else {
    819 			/*
    820 			 * Not the first LUN; devices of this sort inherit
    821 			 * the xfer mode paramters of the I_T Nexus, masked
    822 			 * by their own capabilities.
    823 			 */
    824 			struct scsipi_periph *itperiph =
    825 			    scsipi_lookup_periph(chan, target, 0);
    826 			if (itperiph != NULL) {
    827 				periph->periph_mode =
    828 				    itperiph->periph_mode & periph->periph_cap;
    829 				periph->periph_period = itperiph->periph_period;
    830 				periph->periph_offset = itperiph->periph_offset;
    831 				periph->periph_flags |=
    832 				  itperiph->periph_flags & PERIPH_MODE_VALID;
    833 			}
    834 		}
    835 		scsipi_print_xfer_mode(periph);
    836 	} else {
    837 		scsibusprint(&sa, sc->sc_dev.dv_xname);
    838 		printf(" not configured\n");
    839 		goto bad;
    840 	}
    841 
    842 	return (docontinue);
    843 
    844  bad:
    845 	free(periph, M_DEVBUF);
    846 	return (docontinue);
    847 }
    848 
    849 /****** Entry points for user control of the SCSI bus. ******/
    850 
    851 int
    852 scsibusopen(dev, flag, fmt, p)
    853 	dev_t dev;
    854 	int flag, fmt;
    855 	struct proc *p;
    856 {
    857 	struct scsibus_softc *sc;
    858 	int error, unit = minor(dev);
    859 
    860 	if (unit >= scsibus_cd.cd_ndevs ||
    861 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
    862 		return (ENXIO);
    863 
    864 	if (sc->sc_flags & SCSIBUSF_OPEN)
    865 		return (EBUSY);
    866 
    867 	if ((error = scsipi_adapter_addref(sc->sc_channel->chan_adapter)) != 0)
    868 		return (error);
    869 
    870 	sc->sc_flags |= SCSIBUSF_OPEN;
    871 
    872 	return (0);
    873 }
    874 
    875 int
    876 scsibusclose(dev, flag, fmt, p)
    877 	dev_t dev;
    878 	int flag, fmt;
    879 	struct proc *p;
    880 {
    881 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    882 
    883 	scsipi_adapter_delref(sc->sc_channel->chan_adapter);
    884 
    885 	sc->sc_flags &= ~SCSIBUSF_OPEN;
    886 
    887 	return (0);
    888 }
    889 
    890 int
    891 scsibusioctl(dev, cmd, addr, flag, p)
    892 	dev_t dev;
    893 	u_long cmd;
    894 	caddr_t addr;
    895 	int flag;
    896 	struct proc *p;
    897 {
    898 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    899 	struct scsipi_channel *chan = sc->sc_channel;
    900 	int error;
    901 
    902 	/*
    903 	 * Enforce write permission for ioctls that change the
    904 	 * state of the bus.  Host adapter specific ioctls must
    905 	 * be checked by the adapter driver.
    906 	 */
    907 	switch (cmd) {
    908 	case SCBUSIOSCAN:
    909 	case SCBUSIORESET:
    910 		if ((flag & FWRITE) == 0)
    911 			return (EBADF);
    912 	}
    913 
    914 	switch (cmd) {
    915 	case SCBUSIOSCAN:
    916 	    {
    917 		struct scbusioscan_args *a =
    918 		    (struct scbusioscan_args *)addr;
    919 
    920 		error = scsi_probe_bus(sc, a->sa_target, a->sa_lun);
    921 		break;
    922 	    }
    923 
    924 	case SCBUSIORESET:
    925 		/* FALLTHROUGH */
    926 	default:
    927 		if (chan->chan_adapter->adapt_ioctl == NULL)
    928 			error = ENOTTY;
    929 		else
    930 			error = (*chan->chan_adapter->adapt_ioctl)(chan,
    931 			    cmd, addr, flag, p);
    932 		break;
    933 	}
    934 
    935 	return (error);
    936 }
    937