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scsiconf.c revision 1.130.2.3
      1 /*	$NetBSD: scsiconf.c,v 1.130.2.3 1999/10/26 23:08:05 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 	scsi_kill_pending,
    109 };
    110 
    111 int
    112 scsiprint(aux, pnp)
    113 	void *aux;
    114 	const char *pnp;
    115 {
    116 	struct scsipi_channel *chan = aux;
    117 	struct scsipi_adapter *adapt = chan->chan_adapter;
    118 
    119 	/* only "scsibus"es can attach to "scsi"s; easy. */
    120 	if (pnp)
    121 		printf("scsibus at %s", pnp);
    122 
    123 	/* don't print channel if the controller says there can be only one. */
    124 	if (adapt->adapt_nchannels != 1)
    125 		printf(" channel %d", chan->chan_channel);
    126 
    127 	return (UNCONF);
    128 }
    129 
    130 int
    131 scsibusmatch(parent, cf, aux)
    132 	struct device *parent;
    133 	struct cfdata *cf;
    134 	void *aux;
    135 {
    136 	struct scsipi_channel *chan = aux;
    137 
    138 	if (cf->cf_loc[SCSICF_CHANNEL] != chan->chan_channel &&
    139 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
    140 		return (0);
    141 
    142 	return (1);
    143 }
    144 
    145 void
    146 scsibusattach(parent, self, aux)
    147 	struct device *parent, *self;
    148 	void *aux;
    149 {
    150 	struct scsibus_softc *sc = (void *) self;
    151 	struct scsipi_channel *chan = aux;
    152 
    153 	sc->sc_channel = chan;
    154 
    155 	printf(": %d targets, %d luns per target\n",
    156 	    chan->chan_ntargets, chan->chan_nluns);
    157 
    158 	/* Initialize the channel. */
    159 	scsipi_channel_init(chan);
    160 
    161 	/*
    162 	 * Defer configuration of the children until interrupts
    163 	 * are enabled.
    164 	 */
    165 	config_interrupts(self, scsibus_config_interrupts);
    166 }
    167 
    168 void
    169 scsibus_config_interrupts(self)
    170 	struct device *self;
    171 {
    172 	struct scsibus_softc *sc = (void *) self;
    173 
    174 #if defined(SCSI_DELAY) && SCSI_DELAY > 2
    175 #else	/* SCSI_DELAY > 2 */
    176 #undef	SCSI_DELAY
    177 #define SCSI_DELAY 2
    178 #endif	/* SCSI_DELAY */
    179 
    180 	if (SCSI_DELAY > 0) {
    181 		printf("%s: waiting %d seconds for devices to settle...\n",
    182 		    self->dv_xname, SCSI_DELAY);
    183 		/* ...an identifier we know no one will use... */
    184 		(void) tsleep(scsibus_config_interrupts, PRIBIO,
    185 		    "scsidly", SCSI_DELAY * hz);
    186 	}
    187 
    188 	scsi_probe_bus(sc, -1, -1);
    189 }
    190 
    191 int
    192 scsibussubmatch(parent, cf, aux)
    193 	struct device *parent;
    194 	struct cfdata *cf;
    195 	void *aux;
    196 {
    197 	struct scsipibus_attach_args *sa = aux;
    198 	struct scsipi_periph *periph = sa->sa_periph;
    199 
    200 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
    201 	    cf->cf_loc[SCSIBUSCF_TARGET] != periph->periph_target)
    202 		return (0);
    203 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
    204 	    cf->cf_loc[SCSIBUSCF_LUN] != periph->periph_lun)
    205 		return (0);
    206 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    207 }
    208 
    209 int
    210 scsibusactivate(self, act)
    211 	struct device *self;
    212 	enum devact act;
    213 {
    214 	struct scsibus_softc *sc = (void *) self;
    215 	struct scsipi_channel *chan = sc->sc_channel;
    216 	struct scsipi_periph *periph;
    217 	int target, lun, error = 0, s;
    218 
    219 	s = splbio();
    220 	switch (act) {
    221 	case DVACT_ACTIVATE:
    222 		error = EOPNOTSUPP;
    223 		break;
    224 
    225 	case DVACT_DEACTIVATE:
    226 		for (target = 0; target < chan->chan_ntargets;
    227 		     target++) {
    228 			if (target == chan->chan_id)
    229 				continue;
    230 			for (lun = 0; lun < chan->chan_nluns; lun++) {
    231 				periph = chan->chan_periphs[target][lun];
    232 				if (periph == NULL)
    233 					continue;
    234 				error = config_deactivate(periph->periph_dev);
    235 				if (error)
    236 					goto out;
    237 			}
    238 		}
    239 		break;
    240 	}
    241  out:
    242 	splx(s);
    243 	return (error);
    244 }
    245 
    246 int
    247 scsibusdetach(self, flags)
    248 	struct device *self;
    249 	int flags;
    250 {
    251 	struct scsibus_softc *sc = (void *) self;
    252 	struct scsipi_channel *chan = sc->sc_channel;
    253 	struct scsipi_periph *periph;
    254 	int target, lun, error;
    255 
    256 	for (target = 0; target < chan->chan_ntargets; target++) {
    257 		if (target == chan->chan_id)
    258 			continue;
    259 		for (lun = 0; lun < chan->chan_nluns; lun++) {
    260 			periph = chan->chan_periphs[target][lun];
    261 			if (periph == NULL)
    262 				continue;
    263 			error = config_detach(periph->periph_dev, flags);
    264 			if (error)
    265 				return (error);
    266 			free(periph, M_DEVBUF);
    267 			chan->chan_periphs[target][lun] = NULL;
    268 		}
    269 	}
    270 	return (0);
    271 }
    272 
    273 /*
    274  * Probe the requested scsi bus. It must be already set up.
    275  * target and lun optionally narrow the search if not -1
    276  */
    277 int
    278 scsi_probe_bus(sc, target, lun)
    279 	struct scsibus_softc *sc;
    280 	int target, lun;
    281 {
    282 	struct scsipi_channel *chan = sc->sc_channel;
    283 	int maxtarget, mintarget, maxlun, minlun;
    284 	int error;
    285 
    286 	if (target == -1) {
    287 		maxtarget = chan->chan_ntargets - 1;
    288 		mintarget = 0;
    289 	} else {
    290 		if (target < 0 || target >= chan->chan_ntargets)
    291 			return (EINVAL);
    292 		maxtarget = mintarget = target;
    293 	}
    294 
    295 	if (lun == -1) {
    296 		maxlun = chan->chan_nluns - 1;
    297 		minlun = 0;
    298 	} else {
    299 		if (lun < 0 || lun >= chan->chan_nluns)
    300 			return (EINVAL);
    301 		maxlun = minlun = lun;
    302 	}
    303 
    304 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    305 		return (error);
    306 	for (target = mintarget; target <= maxtarget; target++) {
    307 		if (target == chan->chan_id)
    308 			continue;
    309 		for (lun = minlun; lun <= maxlun; lun++) {
    310 			/*
    311 			 * See if there's a device present, and configure it.
    312 			 */
    313 			if (scsi_probe_device(sc, target, lun) == 0)
    314 				break;
    315 			/* otherwise something says we should look further */
    316 		}
    317 
    318 		/*
    319 		 * Now that we've discovered all of the LUNs on this
    320 		 * I_T Nexus, update the xfer mode for all of them
    321 		 * that we know about.
    322 		 */
    323 		scsipi_set_xfer_mode(chan, target, 1);
    324 	}
    325 	scsipi_adapter_delref(chan->chan_adapter);
    326 	return (0);
    327 }
    328 
    329 /*
    330  * Print out autoconfiguration information for a subdevice.
    331  *
    332  * This is a slight abuse of 'standard' autoconfiguration semantics,
    333  * because 'print' functions don't normally print the colon and
    334  * device information.  However, in this case that's better than
    335  * either printing redundant information before the attach message,
    336  * or having the device driver call a special function to print out
    337  * the standard device information.
    338  */
    339 int
    340 scsibusprint(aux, pnp)
    341 	void *aux;
    342 	const char *pnp;
    343 {
    344 	struct scsipibus_attach_args *sa = aux;
    345 	struct scsipi_inquiry_pattern *inqbuf;
    346 	u_int8_t type;
    347 	const char *dtype, *qtype;
    348 	char vendor[33], product[65], revision[17];
    349 	int target, lun;
    350 
    351 	if (pnp != NULL)
    352 		printf("%s", pnp);
    353 
    354 	inqbuf = &sa->sa_inqbuf;
    355 
    356 	target = sa->sa_periph->periph_target;
    357 	lun = sa->sa_periph->periph_lun;
    358 	type = inqbuf->type & SID_TYPE;
    359 
    360 	/*
    361 	 * Figure out basic device type and qualifier.
    362 	 */
    363 	dtype = 0;
    364 	switch (inqbuf->type & SID_QUAL) {
    365 	case SID_QUAL_LU_PRESENT:
    366 		qtype = "";
    367 		break;
    368 
    369 	case SID_QUAL_LU_NOTPRESENT:
    370 		qtype = " offline";
    371 		break;
    372 
    373 	case SID_QUAL_reserved:
    374 	case SID_QUAL_LU_NOT_SUPP:
    375 		panic("scsibusprint: impossible qualifier");
    376 
    377 	default:
    378 		qtype = "";
    379 		dtype = "vendor-unique";
    380 		break;
    381 	}
    382 	if (dtype == NULL)
    383 		dtype = scsipi_dtype(type);
    384 
    385 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
    386 	scsipi_strvis(product, 65, inqbuf->product, 16);
    387 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
    388 
    389 	printf(" target %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s",
    390 	    target, lun, vendor, product, revision,
    391 	    sa->scsipi_info.scsi_version & SID_ANSII, type, dtype,
    392 	    inqbuf->removable ? "removable" : "fixed", qtype);
    393 
    394 	return (UNCONF);
    395 }
    396 
    397 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    398 	{{T_CDROM, T_REMOV,
    399 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     PQUIRK_NOLUNS},
    400 	{{T_CDROM, T_REMOV,
    401 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     PQUIRK_NOLUNS},
    402 	{{T_CDROM, T_REMOV,
    403 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     PQUIRK_NOLUNS},
    404 	{{T_CDROM, T_REMOV,
    405 	 "DEC     ", "RRD42   (C) DEC ", ""},     PQUIRK_NOLUNS},
    406 	{{T_CDROM, T_REMOV,
    407 	 "DENON   ", "DRD-25X         ", "V"},    PQUIRK_NOLUNS},
    408 	{{T_CDROM, T_REMOV,
    409 	 "HP      ", "C4324/C4325     ", ""},     PQUIRK_NOLUNS},
    410 	{{T_CDROM, T_REMOV,
    411 	 "IMS     ", "CDD521/10       ", "2.06"}, PQUIRK_NOLUNS},
    412 	{{T_CDROM, T_REMOV,
    413 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, PQUIRK_NOLUNS},
    414 	{{T_CDROM, T_REMOV,
    415 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     PQUIRK_NOLUNS},
    416 	{{T_CDROM, T_REMOV,
    417 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  PQUIRK_NOLUNS},
    418 	{{T_CDROM, T_REMOV,
    419 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     PQUIRK_NOLUNS},
    420 	{{T_CDROM, T_REMOV,
    421 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     PQUIRK_NOLUNS},
    422 	{{T_CDROM, T_REMOV,
    423 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     PQUIRK_NOLUNS},
    424 	{{T_CDROM, T_REMOV,
    425 	 "NEC     ", "CD-ROM DRIVE:841", ""},     PQUIRK_NOLUNS},
    426 	{{T_CDROM, T_REMOV,
    427 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, PQUIRK_NOLUNS},
    428 	{{T_CDROM, T_REMOV,
    429 	 "SONY    ", "CD-ROM CDU-541  ", ""},     PQUIRK_NOLUNS},
    430 	{{T_CDROM, T_REMOV,
    431 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     PQUIRK_NOLUNS},
    432 	{{T_CDROM, T_REMOV,
    433 	 "SONY    ", "CD-ROM CDU-561  ", ""},     PQUIRK_NOLUNS},
    434 	{{T_CDROM, T_REMOV,
    435 	 "SONY    ", "CD-ROM CDU-8003A", ""},     PQUIRK_NOLUNS},
    436 	{{T_CDROM, T_REMOV,
    437 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     PQUIRK_NOLUNS},
    438 	{{T_CDROM, T_REMOV,
    439 	 "TEAC    ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    440 	{{T_CDROM, T_REMOV,
    441 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, PQUIRK_NOLUNS},
    442 	{{T_CDROM, T_REMOV,
    443 	 "TEXEL   ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    444 	{{T_CDROM, T_REMOV,
    445 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, PQUIRK_NOLUNS},
    446 	{{T_CDROM, T_REMOV,
    447 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, PQUIRK_NOLUNS},
    448 	{{T_CDROM, T_REMOV,
    449 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, PQUIRK_NOLUNS},
    450 	{{T_CDROM, T_REMOV,
    451 	 "ShinaKen", "CD-ROM DM-3x1S", "1.04"},   PQUIRK_NOLUNS},
    452 	{{T_CDROM, T_REMOV,
    453 	 "JVC     ", "R2626",            ""},     PQUIRK_NOLUNS},
    454 	{{T_DIRECT, T_FIXED,
    455 	 "MICROP  ", "1588-15MBSUN0669", ""},     PQUIRK_AUTOSAVE},
    456 	{{T_DIRECT, T_FIXED,
    457 	 "MICROP  ", "2217-15MQ1091501", ""},     PQUIRK_NOSYNCCACHE},
    458 	{{T_OPTICAL, T_REMOV,
    459 	 "EPSON   ", "OMD-5010        ", "3.08"}, PQUIRK_NOLUNS},
    460 
    461 	{{T_DIRECT, T_FIXED,
    462 	 "TOSHIBA ","CD-ROM XM-3401TA", "0283"},  PQUIRK_CDROM|PQUIRK_NOLUNS},
    463 	{{T_DIRECT, T_FIXED,
    464 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, PQUIRK_NOMODESENSE},
    465 	{{T_DIRECT, T_FIXED,
    466 	 "DEC     ", "RZ55     (C) DEC", ""},     PQUIRK_AUTOSAVE},
    467 	{{T_DIRECT, T_FIXED,
    468 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},  PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE},
    469 	/* Gives non-media hardware failure in response to start-unit command */
    470 	{{T_DIRECT, T_FIXED,
    471 	 "HITACHI", "DK515C",		"CP16"},  PQUIRK_NOSTARTUNIT},
    472 	{{T_DIRECT, T_FIXED,
    473 	 "HITACHI", "DK515C",		"CP15"},  PQUIRK_NOSTARTUNIT},
    474 	{{T_DIRECT, T_FIXED,
    475 	 "HP      ", "C372",             ""},     PQUIRK_NOTAG},
    476 	{{T_DIRECT, T_FIXED,
    477 	 "IBMRAID ", "0662S",		 ""},     PQUIRK_AUTOSAVE},
    478 	{{T_DIRECT, T_FIXED,
    479 	 "IBM     ", "0663H",		 ""},     PQUIRK_AUTOSAVE},
    480 	{{T_DIRECT, T_FIXED,
    481 	 "IBM",	     "0664",		 ""},     PQUIRK_AUTOSAVE},
    482 	{{T_DIRECT, T_FIXED,
    483 	 "IBM     ", "H3171-S2",	 ""},	  PQUIRK_NOLUNS|PQUIRK_AUTOSAVE},
    484 	{{T_DIRECT, T_FIXED,
    485 	 "IBM     ", "KZ-C",		 ""},	  PQUIRK_AUTOSAVE},
    486 	/* Broken IBM disk */
    487 	{{T_DIRECT, T_FIXED,
    488 	 ""	   , "DFRSS2F",		 ""},	  PQUIRK_AUTOSAVE},
    489 	{{T_DIRECT, T_REMOV,
    490 	 "MPL     ", "MC-DISK-        ", ""},     PQUIRK_NOLUNS},
    491 	{{T_DIRECT, T_FIXED,
    492 	 "MAXTOR  ", "XT-3280         ", ""},     PQUIRK_NOLUNS},
    493 	{{T_DIRECT, T_FIXED,
    494 	 "MAXTOR  ", "XT-4380S        ", ""},     PQUIRK_NOLUNS},
    495 	{{T_DIRECT, T_FIXED,
    496 	 "MAXTOR  ", "MXT-1240S       ", ""},     PQUIRK_NOLUNS},
    497 	{{T_DIRECT, T_FIXED,
    498 	 "MAXTOR  ", "XT-4170S        ", ""},     PQUIRK_NOLUNS},
    499 	{{T_DIRECT, T_FIXED,
    500 	 "MAXTOR  ", "XT-8760S",         ""},     PQUIRK_NOLUNS},
    501 	{{T_DIRECT, T_FIXED,
    502 	 "MAXTOR  ", "LXT-213S        ", ""},     PQUIRK_NOLUNS},
    503 	{{T_DIRECT, T_FIXED,
    504 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     PQUIRK_NOLUNS},
    505 	{{T_DIRECT, T_FIXED,
    506 	 "MAXTOR  ", "LXT-200S        ", ""},     PQUIRK_NOLUNS},
    507 	{{T_DIRECT, T_FIXED,
    508 	 "MEGADRV ", "EV1000",           ""},     PQUIRK_NOMODESENSE},
    509 	{{T_DIRECT, T_FIXED,
    510 	 "MST     ", "SnapLink        ", ""},     PQUIRK_NOLUNS},
    511 	{{T_DIRECT, T_FIXED,
    512 	 "NEC     ", "D3847           ", "0307"}, PQUIRK_NOLUNS},
    513 	{{T_DIRECT, T_FIXED,
    514 	 "QUANTUM ", "ELS85S          ", ""},     PQUIRK_AUTOSAVE},
    515 	{{T_DIRECT, T_FIXED,
    516 	 "QUANTUM ", "LPS525S         ", ""},     PQUIRK_NOLUNS},
    517 	{{T_DIRECT, T_FIXED,
    518 	 "QUANTUM ", "P105S 910-10-94x", ""},     PQUIRK_NOLUNS},
    519 	{{T_DIRECT, T_FIXED,
    520 	 "QUANTUM ", "PD1225S         ", ""},     PQUIRK_NOLUNS},
    521 	{{T_DIRECT, T_FIXED,
    522 	 "QUANTUM ", "PD210S   SUN0207", ""},     PQUIRK_NOLUNS},
    523 	{{T_DIRECT, T_FIXED,
    524 	 "RODIME  ", "RO3000S         ", ""},     PQUIRK_NOLUNS},
    525 	{{T_DIRECT, T_FIXED,
    526 	 "SEAGATE ", "ST125N          ", ""},     PQUIRK_NOLUNS},
    527 	{{T_DIRECT, T_FIXED,
    528 	 "SEAGATE ", "ST157N          ", ""},     PQUIRK_NOLUNS},
    529 	{{T_DIRECT, T_FIXED,
    530 	 "SEAGATE ", "ST296           ", ""},     PQUIRK_NOLUNS},
    531 	{{T_DIRECT, T_FIXED,
    532 	 "SEAGATE ", "ST296N          ", ""},     PQUIRK_NOLUNS},
    533 	{{T_DIRECT, T_FIXED,
    534 	 "SEAGATE ", "ST19171",          ""},     PQUIRK_NOMODESENSE},
    535 	{{T_DIRECT, T_FIXED,
    536 	 "SEAGATE ", "ST34501FC       ", ""},     PQUIRK_NOMODESENSE},
    537 	{{T_DIRECT, T_FIXED,
    538 	 "TOSHIBA ", "MK538FB         ", "6027"}, PQUIRK_NOLUNS},
    539 	{{T_DIRECT, T_REMOV,
    540 	 "iomega", "jaz 1GB", 		 ""},	  PQUIRK_NOMODESENSE},
    541 	{{T_DIRECT, T_REMOV,
    542 	 "IOMEGA", "ZIP 100",		 ""},	  PQUIRK_NOMODESENSE},
    543 	{{T_DIRECT, T_REMOV,
    544 	 "IOMEGA", "ZIP 100",		 "J.03"}, PQUIRK_NOMODESENSE|PQUIRK_NOLUNS},
    545 	/* Letting the motor run kills floppy drives and disks quite fast. */
    546 	{{T_DIRECT, T_REMOV,
    547 	 "TEAC", "FC-1",		 ""},	  PQUIRK_NOSTARTUNIT},
    548 
    549 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    550 	{{T_SEQUENTIAL, T_REMOV,
    551 	 "        ", "                ", "    "}, PQUIRK_NOLUNS},
    552 	{{T_SEQUENTIAL, T_REMOV,
    553 	 "CALIPER ", "CP150           ", ""},     PQUIRK_NOLUNS},
    554 	{{T_SEQUENTIAL, T_REMOV,
    555 	 "EXABYTE ", "EXB-8200        ", ""},     PQUIRK_NOLUNS},
    556 	{{T_SEQUENTIAL, T_REMOV,
    557 	 "SONY    ", "GY-10C          ", ""},     PQUIRK_NOLUNS},
    558 	{{T_SEQUENTIAL, T_REMOV,
    559 	 "SONY    ", "SDT-2000        ", "2.09"}, PQUIRK_NOLUNS},
    560 	{{T_SEQUENTIAL, T_REMOV,
    561 	 "SONY    ", "SDT-5000        ", "3."},   PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    562 	{{T_SEQUENTIAL, T_REMOV,
    563 	 "SONY    ", "SDT-5200        ", "3."},   PQUIRK_NOLUNS},
    564 	{{T_SEQUENTIAL, T_REMOV,
    565 	 "TANDBERG", " TDC 3600       ", ""},     PQUIRK_NOLUNS},
    566 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    567 	{{T_SEQUENTIAL, T_REMOV,
    568 	 "ARCHIVE ", "VIPER 150  21247", ""},     PQUIRK_NOLUNS},
    569 	/* Following entry for a Cipher ST150S; ref. PR4171 */
    570 	{{T_SEQUENTIAL, T_REMOV,
    571 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, PQUIRK_NOLUNS},
    572 	{{T_SEQUENTIAL, T_REMOV,
    573 	 "ARCHIVE ", "Python 28454-XXX", ""},     PQUIRK_NOLUNS},
    574 	{{T_SEQUENTIAL, T_REMOV,
    575 	 "WANGTEK ", "5099ES SCSI",      ""},     PQUIRK_NOLUNS},
    576 	{{T_SEQUENTIAL, T_REMOV,
    577 	 "WANGTEK ", "5150ES SCSI",      ""},     PQUIRK_NOLUNS},
    578 	{{T_SEQUENTIAL, T_REMOV,
    579 	 "WANGTEK ", "SCSI-36",		 ""},     PQUIRK_NOLUNS},
    580 	{{T_SEQUENTIAL, T_REMOV,
    581 	 "WangDAT ", "Model 1300      ", "02.4"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    582 	{{T_SEQUENTIAL, T_REMOV,
    583 	 "WangDAT ", "Model 2600      ", "01.7"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    584 	{{T_SEQUENTIAL, T_REMOV,
    585 	 "WangDAT ", "Model 3200      ", "02.2"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    586 
    587 	{{T_SCANNER, T_FIXED,
    588 	 "RICOH   ", "IS60            ", "1R08"}, PQUIRK_NOLUNS},
    589 	{{T_SCANNER, T_FIXED,
    590 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, PQUIRK_NOLUNS},
    591 	{{T_SCANNER, T_FIXED,
    592 	 "UMAX    ", "Astra 1220S     ", ""},     PQUIRK_NOLUNS},
    593 	{{T_SCANNER, T_FIXED,
    594 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, PQUIRK_NOLUNS},
    595 	{{T_SCANNER, T_FIXED,
    596 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, PQUIRK_NOLUNS},
    597 
    598 	{{T_PROCESSOR, T_FIXED,
    599 	 "LITRONIC", "PCMCIA          ", ""},     PQUIRK_NOLUNS},
    600 
    601 	{{T_CHANGER, T_REMOV,
    602 	 "SONY    ", "CDL1100         ", ""},     PQUIRK_NOLUNS},
    603 
    604 	{{T_ENCLOSURE, T_FIXED,
    605 	 "SUN     ", "SENA            ", "1.07"}, PQUIRK_NOLUNS},
    606 };
    607 
    608 /*
    609  * given a target and lun, ask the device what
    610  * it is, and find the correct driver table
    611  * entry.
    612  */
    613 int
    614 scsi_probe_device(sc, target, lun)
    615 	struct scsibus_softc *sc;
    616 	int target, lun;
    617 {
    618 	struct scsipi_channel *chan = sc->sc_channel;
    619 	struct scsipi_periph *periph;
    620 	struct scsipi_inquiry_data inqbuf;
    621 	struct scsi_quirk_inquiry_pattern *finger;
    622 	int i, checkdtype, priority, docontinue, quirks;
    623 	struct scsipibus_attach_args sa;
    624 	struct cfdata *cf;
    625 
    626 	/*
    627 	 * Assume no more luns to search after this one.
    628 	 * If we successfully get Inquiry data and after
    629 	 * merging quirks we find we can probe for more
    630 	 * luns, we will.
    631 	 */
    632 	docontinue = 0;
    633 
    634 	/* Skip this slot if it is already attached. */
    635 	if (chan->chan_periphs[target][lun] != NULL)
    636 		return (docontinue);
    637 
    638 	periph = malloc(sizeof(*periph), M_DEVBUF, M_WAITOK);
    639 	memset(periph, 0, sizeof(*periph));
    640 
    641 	periph->periph_dev = NULL;
    642 	periph->periph_channel = chan;
    643 	periph->periph_switch = &scsi_probe_dev;
    644 
    645 	/*
    646 	 * Start with one command opening.  The periph driver
    647 	 * will grow this if it knows it can take advantage of it.
    648 	 */
    649 	periph->periph_openings = 1;
    650 	periph->periph_active = 0;
    651 
    652 	periph->periph_target = target;
    653 	periph->periph_lun = lun;
    654 
    655 	for (i = 0; i < PERIPH_NTAGWORDS; i++)
    656 		periph->periph_freetags[i] = 0xffffffff;
    657 
    658 	TAILQ_INIT(&periph->periph_xferq);
    659 
    660 	/*
    661 	 * Ask the device what it is
    662 	 */
    663 #if defined(SCSIDEBUG) && DEBUGTYPE == BUS_SCSI
    664 	if (target == DEBUGTARGET && lun == DEBUGLUN)
    665 		sc_link->flags |= DEBUGLEVEL;
    666 #endif /* SCSIDEBUG */
    667 
    668 	(void) scsipi_test_unit_ready(periph,
    669 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    670 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
    671 
    672 #ifdef SCSI_2_DEF
    673 	/* some devices need to be told to go to SCSI2 */
    674 	/* However some just explode if you tell them this.. leave it out */
    675 	scsi_change_def(periph, XS_CTL_DISCOVERY | XS_CTL_SILENT);
    676 #endif /* SCSI_2_DEF */
    677 
    678 	/* Now go ask the device all about itself. */
    679 	memset(&inqbuf, 0, sizeof(inqbuf));
    680 	if (scsipi_inquire(periph, &inqbuf, XS_CTL_DISCOVERY) != 0)
    681 		goto bad;
    682 	{
    683 		int len = inqbuf.additional_length;
    684 		while (len < 3)
    685 			inqbuf.unused[len++] = '\0';
    686 		while (len < 3 + 28)
    687 			inqbuf.unused[len++] = ' ';
    688 	}
    689 
    690 	periph->periph_type = inqbuf.device & SID_TYPE;
    691 	if (inqbuf.dev_qual2 & SID_REMOVABLE)
    692 		periph->periph_flags |= PERIPH_REMOVABLE;
    693 	periph->periph_version = inqbuf.version & SID_ANSII;
    694 
    695 	/*
    696 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    697 	 * is vendor specific and won't match in this switch.
    698 	 * All we do here is throw out bad/negative responses.
    699 	 */
    700 	checkdtype = 0;
    701 	switch (inqbuf.device & SID_QUAL) {
    702 	case SID_QUAL_LU_PRESENT:
    703 	case SID_QUAL_LU_NOTPRESENT:
    704 		checkdtype = 1;
    705 		break;
    706 
    707 	case SID_QUAL_reserved:
    708 	case SID_QUAL_LU_NOT_SUPP:
    709 		goto bad;
    710 
    711 	default:
    712 		break;
    713 	}
    714 	if (checkdtype) {
    715 		switch (periph->periph_type) {
    716 		case T_DIRECT:
    717 		case T_SEQUENTIAL:
    718 		case T_PRINTER:
    719 		case T_PROCESSOR:
    720 		case T_WORM:
    721 		case T_CDROM:
    722 		case T_SCANNER:
    723 		case T_OPTICAL:
    724 		case T_CHANGER:
    725 		case T_COMM:
    726 		case T_IT8_1:
    727 		case T_IT8_2:
    728 		case T_STORARRAY:
    729 		case T_ENCLOSURE:
    730 		default:
    731 			break;
    732 		case T_NODEVICE:
    733 			goto bad;
    734 		}
    735 	}
    736 
    737 	sa.sa_periph = periph;
    738 	sa.sa_inqbuf.type = inqbuf.device;
    739 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
    740 	    T_REMOV : T_FIXED;
    741 	sa.sa_inqbuf.vendor = inqbuf.vendor;
    742 	sa.sa_inqbuf.product = inqbuf.product;
    743 	sa.sa_inqbuf.revision = inqbuf.revision;
    744 	sa.scsipi_info.scsi_version = inqbuf.version;
    745 
    746 	finger = (struct scsi_quirk_inquiry_pattern *)scsipi_inqmatch(
    747 	    &sa.sa_inqbuf, (caddr_t)scsi_quirk_patterns,
    748 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
    749 	    sizeof(scsi_quirk_patterns[0]), &priority);
    750 
    751 	if (finger != NULL)
    752 		quirks = finger->quirks;
    753 	else
    754 		quirks = 0;
    755 
    756 	/*
    757 	 * Determine the operating mode capabilities of the device.
    758 	 */
    759 	if (periph->periph_version >= 2) {
    760 		if ((inqbuf.flags & SID_CmdQue) != 0 &&
    761 		    (quirks & PQUIRK_NOTAG) == 0)
    762 			periph->periph_cap |= PERIPH_CAP_TQING;
    763 		if ((inqbuf.flags & SID_Linked) != 0)
    764 			periph->periph_cap |= PERIPH_CAP_LINKCMDS;
    765 		if ((inqbuf.flags & SID_Sync) != 0 &&
    766 		    (quirks & PQUIRK_NOSYNC) == 0)
    767 			periph->periph_cap |= PERIPH_CAP_SYNC;
    768 		if ((inqbuf.flags & SID_WBus16) != 0 &&
    769 		    (quirks & PQUIRK_NOWIDE) == 0)
    770 			periph->periph_cap |= PERIPH_CAP_WIDE16;
    771 		if ((inqbuf.flags & SID_WBus32) != 0 &&
    772 		    (quirks & PQUIRK_NOWIDE) == 0)
    773 			periph->periph_cap |= PERIPH_CAP_WIDE32;
    774 		if ((inqbuf.flags & SID_SftRe) != 0)
    775 			periph->periph_cap |= PERIPH_CAP_SFTRESET;
    776 		if ((inqbuf.flags & SID_RelAdr) != 0)
    777 			periph->periph_cap |= PERIPH_CAP_RELADR;
    778 	}
    779 
    780 	/*
    781 	 * Now apply any quirks from the table.
    782 	 */
    783 	periph->periph_quirks |= quirks;
    784 	if (periph->periph_version == 0 &&
    785 	    (periph->periph_quirks & PQUIRK_FORCELUNS) == 0)
    786 		periph->periph_quirks |= PQUIRK_NOLUNS;
    787 
    788 	if ((periph->periph_quirks & PQUIRK_NOLUNS) == 0)
    789 		docontinue = 1;
    790 
    791 	if ((cf = config_search(scsibussubmatch, &sc->sc_dev, &sa)) != NULL) {
    792 		chan->chan_periphs[target][lun] = periph;
    793 		/*
    794 		 * XXX Can't assign periph_dev here, because we'll
    795 		 * XXX need it before config_attach() returns.  Must
    796 		 * XXX assign it in periph driver.
    797 		 */
    798 		(void) config_attach(&sc->sc_dev, cf, &sa, scsibusprint);
    799 	} else {
    800 		scsibusprint(&sa, sc->sc_dev.dv_xname);
    801 		printf(" not configured\n");
    802 		goto bad;
    803 	}
    804 
    805 	return (docontinue);
    806 
    807  bad:
    808 	free(periph, M_DEVBUF);
    809 	return (docontinue);
    810 }
    811 
    812 /****** Entry points for user control of the SCSI bus. ******/
    813 
    814 int
    815 scsibusopen(dev, flag, fmt, p)
    816 	dev_t dev;
    817 	int flag, fmt;
    818 	struct proc *p;
    819 {
    820 	struct scsibus_softc *sc;
    821 	int error, unit = minor(dev);
    822 
    823 	if (unit >= scsibus_cd.cd_ndevs ||
    824 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
    825 		return (ENXIO);
    826 
    827 	if (sc->sc_flags & SCSIBUSF_OPEN)
    828 		return (EBUSY);
    829 
    830 	if ((error = scsipi_adapter_addref(sc->sc_channel->chan_adapter)) != 0)
    831 		return (error);
    832 
    833 	sc->sc_flags |= SCSIBUSF_OPEN;
    834 
    835 	return (0);
    836 }
    837 
    838 int
    839 scsibusclose(dev, flag, fmt, p)
    840 	dev_t dev;
    841 	int flag, fmt;
    842 	struct proc *p;
    843 {
    844 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    845 
    846 	scsipi_adapter_delref(sc->sc_channel->chan_adapter);
    847 
    848 	sc->sc_flags &= ~SCSIBUSF_OPEN;
    849 
    850 	return (0);
    851 }
    852 
    853 int
    854 scsibusioctl(dev, cmd, addr, flag, p)
    855 	dev_t dev;
    856 	u_long cmd;
    857 	caddr_t addr;
    858 	int flag;
    859 	struct proc *p;
    860 {
    861 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    862 	struct scsipi_channel *chan = sc->sc_channel;
    863 	int error;
    864 
    865 	/*
    866 	 * Enforce write permission for ioctls that change the
    867 	 * state of the bus.  Host adapter specific ioctls must
    868 	 * be checked by the adapter driver.
    869 	 */
    870 	switch (cmd) {
    871 	case SCBUSIOSCAN:
    872 	case SCBUSIORESET:
    873 		if ((flag & FWRITE) == 0)
    874 			return (EBADF);
    875 	}
    876 
    877 	switch (cmd) {
    878 	case SCBUSIOSCAN:
    879 	    {
    880 		struct scbusioscan_args *a =
    881 		    (struct scbusioscan_args *)addr;
    882 
    883 		error = scsi_probe_bus(sc, a->sa_target, a->sa_lun);
    884 		break;
    885 	    }
    886 
    887 	case SCBUSIORESET:
    888 		/* FALLTHROUGH */
    889 	default:
    890 		if (chan->chan_adapter->adapt_ioctl == NULL)
    891 			error = ENOTTY;
    892 		else
    893 			error = (*chan->chan_adapter->adapt_ioctl)(chan,
    894 			    cmd, addr, flag, p);
    895 		break;
    896 	}
    897 
    898 	return (error);
    899 }
    900