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scsiconf.c revision 1.196
      1 /*	$NetBSD: scsiconf.c,v 1.196 2003/01/01 00:10:25 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/cdefs.h>
     58 __KERNEL_RCSID(0, "$NetBSD: scsiconf.c,v 1.196 2003/01/01 00:10:25 thorpej Exp $");
     59 
     60 #include <sys/param.h>
     61 #include <sys/systm.h>
     62 #include <sys/kernel.h>
     63 #include <sys/proc.h>
     64 #include <sys/kthread.h>
     65 #include <sys/malloc.h>
     66 #include <sys/device.h>
     67 #include <sys/conf.h>
     68 #include <sys/fcntl.h>
     69 #include <sys/scsiio.h>
     70 #include <sys/queue.h>
     71 #include <sys/lock.h>
     72 
     73 #include <dev/scsipi/scsi_all.h>
     74 #include <dev/scsipi/scsipi_all.h>
     75 #include <dev/scsipi/scsiconf.h>
     76 
     77 #include "locators.h"
     78 
     79 const struct scsipi_periphsw scsi_probe_dev = {
     80 	NULL,
     81 	NULL,
     82 	NULL,
     83 	NULL,
     84 };
     85 
     86 struct scsi_initq {
     87 	struct scsipi_channel *sc_channel;
     88 	TAILQ_ENTRY(scsi_initq) scsi_initq;
     89 };
     90 
     91 static TAILQ_HEAD(, scsi_initq) scsi_initq_head =
     92     TAILQ_HEAD_INITIALIZER(scsi_initq_head);
     93 static struct simplelock scsibus_interlock = SIMPLELOCK_INITIALIZER;
     94 
     95 int	scsi_probe_device __P((struct scsibus_softc *, int, int));
     96 
     97 int	scsibusmatch __P((struct device *, struct cfdata *, void *));
     98 void	scsibusattach __P((struct device *, struct device *, void *));
     99 int	scsibusactivate __P((struct device *, enum devact));
    100 int	scsibusdetach __P((struct device *, int flags));
    101 
    102 int	scsibussubmatch __P((struct device *, struct cfdata *, void *));
    103 
    104 CFATTACH_DECL(scsibus, sizeof(struct scsibus_softc),
    105     scsibusmatch, scsibusattach, scsibusdetach, scsibusactivate);
    106 
    107 extern struct cfdriver scsibus_cd;
    108 
    109 dev_type_open(scsibusopen);
    110 dev_type_close(scsibusclose);
    111 dev_type_ioctl(scsibusioctl);
    112 
    113 const struct cdevsw scsibus_cdevsw = {
    114 	scsibusopen, scsibusclose, noread, nowrite, scsibusioctl,
    115 	nostop, notty, nopoll, nommap, nokqfilter,
    116 };
    117 
    118 int	scsibusprint __P((void *, const char *));
    119 void	scsibus_config __P((struct scsipi_channel *, void *));
    120 
    121 const struct scsipi_bustype scsi_bustype = {
    122 	SCSIPI_BUSTYPE_SCSI,
    123 	scsi_scsipi_cmd,
    124 	scsipi_interpret_sense,
    125 	scsi_print_addr,
    126 	scsi_kill_pending,
    127 };
    128 
    129 int
    130 scsiprint(aux, pnp)
    131 	void *aux;
    132 	const char *pnp;
    133 {
    134 	struct scsipi_channel *chan = aux;
    135 	struct scsipi_adapter *adapt = chan->chan_adapter;
    136 
    137 	/* only "scsibus"es can attach to "scsi"s; easy. */
    138 	if (pnp)
    139 		aprint_normal("scsibus at %s", pnp);
    140 
    141 	/* don't print channel if the controller says there can be only one. */
    142 	if (adapt->adapt_nchannels != 1)
    143 		aprint_normal(" channel %d", chan->chan_channel);
    144 
    145 	return (UNCONF);
    146 }
    147 
    148 int
    149 scsibusmatch(parent, cf, aux)
    150 	struct device *parent;
    151 	struct cfdata *cf;
    152 	void *aux;
    153 {
    154 	struct scsipi_channel *chan = aux;
    155 
    156 	if (chan->chan_bustype->bustype_type != SCSIPI_BUSTYPE_SCSI)
    157 		return 0;
    158 
    159 	if (cf->cf_loc[SCSICF_CHANNEL] != chan->chan_channel &&
    160 	    cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
    161 		return (0);
    162 
    163 	return (1);
    164 }
    165 
    166 void
    167 scsibusattach(parent, self, aux)
    168 	struct device *parent, *self;
    169 	void *aux;
    170 {
    171 	struct scsibus_softc *sc = (void *) self;
    172 	struct scsipi_channel *chan = aux;
    173 	struct scsi_initq *scsi_initq;
    174 
    175 	sc->sc_channel = chan;
    176 	chan->chan_name = sc->sc_dev.dv_xname;
    177 
    178 	printf(": %d target%s, %d lun%s per target\n",
    179 	    chan->chan_ntargets,
    180 	    chan->chan_ntargets == 1 ? "" : "s",
    181 	    chan->chan_nluns,
    182 	    chan->chan_nluns == 1 ? "" : "s");
    183 
    184 	/* Initialize the channel structure first */
    185 	chan->chan_init_cb = scsibus_config;
    186 	chan->chan_init_cb_arg = sc;
    187 
    188 	scsi_initq = malloc(sizeof(struct scsi_initq), M_DEVBUF, M_WAITOK);
    189 	scsi_initq->sc_channel = chan;
    190 	TAILQ_INSERT_TAIL(&scsi_initq_head, scsi_initq, scsi_initq);
    191         config_pending_incr();
    192 	if (scsipi_channel_init(chan)) {
    193 		printf(": failed to init channel\n");
    194 		return;
    195 	}
    196 
    197 }
    198 
    199 void
    200 scsibus_config(chan, arg)
    201 	struct scsipi_channel *chan;
    202 	void *arg;
    203 {
    204 	struct scsibus_softc *sc = arg;
    205 	struct scsi_initq *scsi_initq;
    206 
    207 #ifndef SCSI_DELAY
    208 #define SCSI_DELAY 2
    209 #endif
    210 
    211 	/* Make sure the devices probe in scsibus order to avoid jitter. */
    212 	simple_lock(&scsibus_interlock);
    213 	for (;;) {
    214 		scsi_initq = TAILQ_FIRST(&scsi_initq_head);
    215 		if (scsi_initq->sc_channel == chan)
    216 			break;
    217 		ltsleep(&scsi_initq_head, PRIBIO, "scsi_initq", 0,
    218 		    &scsibus_interlock);
    219 	}
    220 
    221 	simple_unlock(&scsibus_interlock);
    222 
    223 	if ((chan->chan_flags & SCSIPI_CHAN_NOSETTLE) == 0 &&
    224 	    SCSI_DELAY > 0) {
    225 		printf("%s: waiting %d seconds for devices to settle...\n",
    226 		    sc->sc_dev.dv_xname, SCSI_DELAY);
    227 		/* ...an identifier we know no one will use... */
    228 		(void) tsleep(scsibus_config, PRIBIO,
    229 		    "scsidly", SCSI_DELAY * hz);
    230 	}
    231 
    232 	scsi_probe_bus(sc, -1, -1);
    233 
    234 	simple_lock(&scsibus_interlock);
    235 	TAILQ_REMOVE(&scsi_initq_head, scsi_initq, scsi_initq);
    236 	simple_unlock(&scsibus_interlock);
    237 
    238 	free(scsi_initq, M_DEVBUF);
    239 	wakeup(&scsi_initq_head);
    240 
    241 	config_pending_decr();
    242 }
    243 
    244 int
    245 scsibussubmatch(parent, cf, aux)
    246 	struct device *parent;
    247 	struct cfdata *cf;
    248 	void *aux;
    249 {
    250 	struct scsipibus_attach_args *sa = aux;
    251 	struct scsipi_periph *periph = sa->sa_periph;
    252 
    253 	if (cf->cf_loc[SCSIBUSCF_TARGET] != SCSIBUSCF_TARGET_DEFAULT &&
    254 	    cf->cf_loc[SCSIBUSCF_TARGET] != periph->periph_target)
    255 		return (0);
    256 	if (cf->cf_loc[SCSIBUSCF_LUN] != SCSIBUSCF_LUN_DEFAULT &&
    257 	    cf->cf_loc[SCSIBUSCF_LUN] != periph->periph_lun)
    258 		return (0);
    259 	return (config_match(parent, cf, aux));
    260 }
    261 
    262 int
    263 scsibusactivate(self, act)
    264 	struct device *self;
    265 	enum devact act;
    266 {
    267 	struct scsibus_softc *sc = (void *) self;
    268 	struct scsipi_channel *chan = sc->sc_channel;
    269 	struct scsipi_periph *periph;
    270 	int target, lun, error = 0, s;
    271 
    272 	s = splbio();
    273 	switch (act) {
    274 	case DVACT_ACTIVATE:
    275 		error = EOPNOTSUPP;
    276 		break;
    277 
    278 	case DVACT_DEACTIVATE:
    279 		for (target = 0; target < chan->chan_ntargets;
    280 		     target++) {
    281 			if (target == chan->chan_id)
    282 				continue;
    283 			for (lun = 0; lun < chan->chan_nluns; lun++) {
    284 				periph = scsipi_lookup_periph(chan,
    285 				    target, lun);
    286 				if (periph == NULL)
    287 					continue;
    288 				error = config_deactivate(periph->periph_dev);
    289 				if (error)
    290 					goto out;
    291 			}
    292 		}
    293 		break;
    294 	}
    295  out:
    296 	splx(s);
    297 	return (error);
    298 }
    299 
    300 int
    301 scsibusdetach(self, flags)
    302 	struct device *self;
    303 	int flags;
    304 {
    305 	struct scsibus_softc *sc = (void *) self;
    306 	struct scsipi_channel *chan = sc->sc_channel;
    307 
    308 	/*
    309 	 * Shut down the channel.
    310 	 */
    311 	scsipi_channel_shutdown(chan);
    312 
    313 	/*
    314 	 * Now detach all of the periphs.
    315 	 */
    316 	return scsipi_target_detach(chan, -1, -1, flags);
    317 }
    318 
    319 /*
    320  * Probe the requested scsi bus. It must be already set up.
    321  * target and lun optionally narrow the search if not -1
    322  */
    323 int
    324 scsi_probe_bus(sc, target, lun)
    325 	struct scsibus_softc *sc;
    326 	int target, lun;
    327 {
    328 	struct scsipi_channel *chan = sc->sc_channel;
    329 	int maxtarget, mintarget, maxlun, minlun;
    330 	int error;
    331 
    332 	if (target == -1) {
    333 		maxtarget = chan->chan_ntargets - 1;
    334 		mintarget = 0;
    335 	} else {
    336 		if (target < 0 || target >= chan->chan_ntargets)
    337 			return (EINVAL);
    338 		maxtarget = mintarget = target;
    339 	}
    340 
    341 	if (lun == -1) {
    342 		maxlun = chan->chan_nluns - 1;
    343 		minlun = 0;
    344 	} else {
    345 		if (lun < 0 || lun >= chan->chan_nluns)
    346 			return (EINVAL);
    347 		maxlun = minlun = lun;
    348 	}
    349 
    350 	/*
    351 	 * Some HBAs provide an abstracted view of the bus; give them an
    352 	 * oppertunity to re-scan it before we do.
    353 	 */
    354 	if (chan->chan_adapter->adapt_ioctl != NULL)
    355 		(*chan->chan_adapter->adapt_ioctl)(chan, SCBUSIOLLSCAN, NULL,
    356 		    0, curproc);
    357 
    358 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    359 		return (error);
    360 	for (target = mintarget; target <= maxtarget; target++) {
    361 		if (target == chan->chan_id)
    362 			continue;
    363 		for (lun = minlun; lun <= maxlun; lun++) {
    364 			/*
    365 			 * See if there's a device present, and configure it.
    366 			 */
    367 			if (scsi_probe_device(sc, target, lun) == 0)
    368 				break;
    369 			/* otherwise something says we should look further */
    370 		}
    371 
    372 		/*
    373 		 * Now that we've discovered all of the LUNs on this
    374 		 * I_T Nexus, update the xfer mode for all of them
    375 		 * that we know about.
    376 		 */
    377 		scsipi_set_xfer_mode(chan, target, 1);
    378 	}
    379 	scsipi_adapter_delref(chan->chan_adapter);
    380 	return (0);
    381 }
    382 
    383 /*
    384  * Print out autoconfiguration information for a subdevice.
    385  *
    386  * This is a slight abuse of 'standard' autoconfiguration semantics,
    387  * because 'print' functions don't normally print the colon and
    388  * device information.  However, in this case that's better than
    389  * either printing redundant information before the attach message,
    390  * or having the device driver call a special function to print out
    391  * the standard device information.
    392  */
    393 int
    394 scsibusprint(aux, pnp)
    395 	void *aux;
    396 	const char *pnp;
    397 {
    398 	struct scsipibus_attach_args *sa = aux;
    399 	struct scsipi_inquiry_pattern *inqbuf;
    400 	u_int8_t type;
    401 	const char *dtype;
    402 	char vendor[33], product[65], revision[17];
    403 	int target, lun;
    404 
    405 	if (pnp != NULL)
    406 		aprint_normal("%s", pnp);
    407 
    408 	inqbuf = &sa->sa_inqbuf;
    409 
    410 	target = sa->sa_periph->periph_target;
    411 	lun = sa->sa_periph->periph_lun;
    412 	type = inqbuf->type & SID_TYPE;
    413 
    414 	dtype = scsipi_dtype(type);
    415 
    416 	scsipi_strvis(vendor, 33, inqbuf->vendor, 8);
    417 	scsipi_strvis(product, 65, inqbuf->product, 16);
    418 	scsipi_strvis(revision, 17, inqbuf->revision, 4);
    419 
    420 	aprint_normal(" target %d lun %d: <%s, %s, %s> %s %s",
    421 	    target, lun, vendor, product, revision, dtype,
    422 	    inqbuf->removable ? "removable" : "fixed");
    423 
    424 	return (UNCONF);
    425 }
    426 
    427 const struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
    428 	{{T_CDROM, T_REMOV,
    429 	 "CHINON  ", "CD-ROM CDS-431  ", ""},     PQUIRK_NOLUNS},
    430 	{{T_CDROM, T_REMOV,
    431 	 "Chinon  ", "CD-ROM CDS-525  ", ""},     PQUIRK_NOLUNS},
    432 	{{T_CDROM, T_REMOV,
    433 	 "CHINON  ", "CD-ROM CDS-535  ", ""},     PQUIRK_NOLUNS},
    434 	{{T_CDROM, T_REMOV,
    435 	 "DEC     ", "RRD42   (C) DEC ", ""},     PQUIRK_NOLUNS},
    436 	{{T_CDROM, T_REMOV,
    437 	 "DENON   ", "DRD-25X         ", "V"},    PQUIRK_NOLUNS},
    438 	{{T_CDROM, T_REMOV,
    439 	 "GENERIC ", "CRD-BP2         ", ""},     PQUIRK_NOLUNS},
    440 	{{T_CDROM, T_REMOV,
    441 	 "HP      ", "C4324/C4325     ", ""},     PQUIRK_NOLUNS},
    442 	{{T_CDROM, T_REMOV,
    443 	 "IMS     ", "CDD521/10       ", "2.06"}, PQUIRK_NOLUNS},
    444 	{{T_CDROM, T_REMOV,
    445 	 "MATSHITA", "CD-ROM CR-5XX   ", "1.0b"}, PQUIRK_NOLUNS},
    446 	{{T_CDROM, T_REMOV,
    447 	 "MEDAVIS ", "RENO CD-ROMX2A  ", ""},     PQUIRK_NOLUNS},
    448 	{{T_CDROM, T_REMOV,
    449 	 "MEDIAVIS", "CDR-H93MV       ", "1.3"},  PQUIRK_NOLUNS},
    450 	{{T_CDROM, T_REMOV,
    451 	 "NEC     ", "CD-ROM DRIVE:55 ", ""},     PQUIRK_NOLUNS},
    452 	{{T_CDROM, T_REMOV,
    453 	 "NEC     ", "CD-ROM DRIVE:83 ", ""},     PQUIRK_NOLUNS},
    454 	{{T_CDROM, T_REMOV,
    455 	 "NEC     ", "CD-ROM DRIVE:84 ", ""},     PQUIRK_NOLUNS},
    456 	{{T_CDROM, T_REMOV,
    457 	 "NEC     ", "CD-ROM DRIVE:841", ""},     PQUIRK_NOLUNS},
    458 	{{T_CDROM, T_REMOV,
    459 	 "PIONEER ", "CD-ROM DR-124X  ", "1.01"}, PQUIRK_NOLUNS},
    460 	{{T_CDROM, T_REMOV,
    461 	 "SONY    ", "CD-ROM CDU-541  ", ""},     PQUIRK_NOLUNS},
    462 	{{T_CDROM, T_REMOV,
    463 	 "SONY    ", "CD-ROM CDU-55S  ", ""},     PQUIRK_NOLUNS},
    464 	{{T_CDROM, T_REMOV,
    465 	 "SONY    ", "CD-ROM CDU-561  ", ""},     PQUIRK_NOLUNS},
    466 	{{T_CDROM, T_REMOV,
    467 	 "SONY    ", "CD-ROM CDU-76S", ""},
    468 				PQUIRK_NOLUNS|PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    469 	{{T_CDROM, T_REMOV,
    470 	 "SONY    ", "CD-ROM CDU-8003A", ""},     PQUIRK_NOLUNS},
    471 	{{T_CDROM, T_REMOV,
    472 	 "SONY    ", "CD-ROM CDU-8012 ", ""},     PQUIRK_NOLUNS},
    473 	{{T_CDROM, T_REMOV,
    474 	 "TEAC    ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    475 	{{T_CDROM, T_REMOV,
    476 	 "TEAC    ", "CD-ROM CD-56S   ", "1.0B"}, PQUIRK_NOLUNS},
    477 	{{T_CDROM, T_REMOV,
    478 	 "TEXEL   ", "CD-ROM          ", "1.06"}, PQUIRK_NOLUNS},
    479 	{{T_CDROM, T_REMOV,
    480 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.09"}, PQUIRK_NOLUNS},
    481 	{{T_CDROM, T_REMOV,
    482 	 "TEXEL   ", "CD-ROM DM-XX24 K", "1.10"}, PQUIRK_NOLUNS},
    483 	{{T_CDROM, T_REMOV,
    484 	 "TOSHIBA ", "XM-4101TASUNSLCD", "1755"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
    485 	/* "IBM CDRM00201     !F" 0724 is an IBM OEM Toshiba XM-4101BME */
    486 	{{T_CDROM, T_REMOV,
    487 	 "IBM     ", "CDRM00201     !F", "0724"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
    488 	{{T_CDROM, T_REMOV,
    489 	 "ShinaKen", "CD-ROM DM-3x1S",   "1.04"}, PQUIRK_NOLUNS},
    490 	{{T_CDROM, T_REMOV,
    491 	 "JVC     ", "R2626",            ""},     PQUIRK_NOLUNS},
    492 	{{T_CDROM, T_REMOV,
    493 	 "YAMAHA", "CRW8424S",           ""},     PQUIRK_NOLUNS},
    494 	{{T_CDROM, T_REMOV,
    495 	 "VMware", "Virtual",            "1.0"},
    496 				PQUIRK_NOSTARTUNIT|PQUIRK_NODOORLOCK},
    497 	{{T_CDROM, T_REMOV,
    498 	 "NEC     ", "CD-ROM DRIVE:222", ""},	  PQUIRK_NOLUNS|PQUIRK_NOSYNC},
    499 
    500 	{{T_DIRECT, T_FIXED,
    501 	 "MICROP  ", "1588-15MBSUN0669", ""},     PQUIRK_AUTOSAVE},
    502 	{{T_DIRECT, T_FIXED,
    503 	 "MICROP  ", "2217-15MQ1091501", ""},     PQUIRK_NOSYNCCACHE},
    504 	{{T_OPTICAL, T_REMOV,
    505 	 "EPSON   ", "OMD-5010        ", "3.08"}, PQUIRK_NOLUNS},
    506 	{{T_DIRECT, T_FIXED,
    507 	 "TOSHIBA ","CD-ROM XM-3401TA",  "0283"}, PQUIRK_CDROM|PQUIRK_NOLUNS},
    508 	{{T_DIRECT, T_FIXED,
    509 	 "TOSHIBA ", "CD-ROM DRIVE:XM",  "1971"}, PQUIRK_CDROM|PQUIRK_NOLUNS},
    510 	{{T_DIRECT, T_FIXED,
    511 	 "ADAPTEC ", "AEC-4412BD",       "1.2A"}, PQUIRK_NOMODESENSE},
    512 	{{T_DIRECT, T_FIXED,
    513 	 "ADAPTEC ", "ACB-4000",         ""},     PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE|PQUIRK_NOMODESENSE},
    514 	{{T_DIRECT, T_FIXED,
    515 	 "DEC     ", "RZ55     (C) DEC", ""},     PQUIRK_AUTOSAVE},
    516 	{{T_DIRECT, T_FIXED,
    517 	 "EMULEX  ", "MD21/S2     ESDI", "A00"},
    518 				PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE},
    519 	/* Gives non-media hardware failure in response to start-unit command */
    520 	{{T_DIRECT, T_FIXED,
    521 	 "HITACHI", "DK515C",            "CP16"}, PQUIRK_NOSTARTUNIT},
    522 	{{T_DIRECT, T_FIXED,
    523 	 "HITACHI", "DK515C",            "CP15"}, PQUIRK_NOSTARTUNIT},
    524 	{{T_DIRECT, T_FIXED,
    525 	/* improperly report DT-only sync mode */
    526 	 "HITACHI", "DX32DJ-72ME",	 ""},
    527 				PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
    528 	{{T_DIRECT, T_FIXED,
    529 	 "MICROP",  "1548-15MZ1077801",  "HZ2P"}, PQUIRK_NOTAG},
    530 	{{T_DIRECT, T_FIXED,
    531 	 "HP      ", "C372",             ""},     PQUIRK_NOTAG},
    532 	{{T_DIRECT, T_FIXED,
    533 	 "IBMRAID ", "0662S",		 ""},     PQUIRK_AUTOSAVE},
    534 	{{T_DIRECT, T_FIXED,
    535 	 "IBM     ", "0663H",		 ""},     PQUIRK_AUTOSAVE},
    536 	{{T_DIRECT, T_FIXED,
    537 	 "IBM",	     "0664",		 ""},     PQUIRK_AUTOSAVE},
    538 	{{T_DIRECT, T_FIXED,
    539 	/* improperly report DT-only sync mode */
    540 	 "IBM     ", "DXHS36D",		 ""},
    541 				PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
    542 	{{T_DIRECT, T_FIXED,
    543 	 "IBM     ", "H3171-S2",	 ""},
    544 				PQUIRK_NOLUNS|PQUIRK_AUTOSAVE},
    545 	{{T_DIRECT, T_FIXED,
    546 	 "IBM     ", "KZ-C",		 ""},	  PQUIRK_AUTOSAVE},
    547 	/* Broken IBM disk */
    548 	{{T_DIRECT, T_FIXED,
    549 	 ""	   , "DFRSS2F",		 ""},	  PQUIRK_AUTOSAVE},
    550 	{{T_DIRECT, T_REMOV,
    551 	 "MPL     ", "MC-DISK-        ", ""},     PQUIRK_NOLUNS},
    552 	{{T_DIRECT, T_FIXED,
    553 	 "MAXTOR  ", "XT-3280         ", ""},     PQUIRK_NOLUNS},
    554 	{{T_DIRECT, T_FIXED,
    555 	 "MAXTOR  ", "XT-4380S        ", ""},     PQUIRK_NOLUNS},
    556 	{{T_DIRECT, T_FIXED,
    557 	 "MAXTOR  ", "MXT-1240S       ", ""},     PQUIRK_NOLUNS},
    558 	{{T_DIRECT, T_FIXED,
    559 	 "MAXTOR  ", "XT-4170S        ", ""},     PQUIRK_NOLUNS},
    560 	{{T_DIRECT, T_FIXED,
    561 	 "MAXTOR  ", "XT-8760S",         ""},     PQUIRK_NOLUNS},
    562 	{{T_DIRECT, T_FIXED,
    563 	 "MAXTOR  ", "LXT-213S        ", ""},     PQUIRK_NOLUNS},
    564 	{{T_DIRECT, T_FIXED,
    565 	 "MAXTOR  ", "LXT-213S SUN0207", ""},     PQUIRK_NOLUNS},
    566 	{{T_DIRECT, T_FIXED,
    567 	 "MAXTOR  ", "LXT-200S        ", ""},     PQUIRK_NOLUNS},
    568 	{{T_DIRECT, T_FIXED,
    569 	 "MEGADRV ", "EV1000",           ""},     PQUIRK_NOMODESENSE},
    570 	{{T_DIRECT, T_FIXED,
    571 	 "MICROP", "1991-27MZ",          ""},     PQUIRK_NOTAG},
    572 	{{T_DIRECT, T_FIXED,
    573 	 "MST     ", "SnapLink        ", ""},     PQUIRK_NOLUNS},
    574 	{{T_DIRECT, T_FIXED,
    575 	 "NEC     ", "D3847           ", "0307"}, PQUIRK_NOLUNS},
    576 	{{T_DIRECT, T_FIXED,
    577 	 "QUANTUM ", "ELS85S          ", ""},     PQUIRK_AUTOSAVE},
    578 	{{T_DIRECT, T_FIXED,
    579 	 "QUANTUM ", "LPS525S         ", ""},     PQUIRK_NOLUNS},
    580 	{{T_DIRECT, T_FIXED,
    581 	 "QUANTUM ", "P105S 910-10-94x", ""},     PQUIRK_NOLUNS},
    582 	{{T_DIRECT, T_FIXED,
    583 	 "QUANTUM ", "PD1225S         ", ""},     PQUIRK_NOLUNS},
    584 	{{T_DIRECT, T_FIXED,
    585 	 "QUANTUM ", "PD210S   SUN0207", ""},     PQUIRK_NOLUNS},
    586 	{{T_DIRECT, T_FIXED,
    587 	 "RODIME  ", "RO3000S         ", ""},     PQUIRK_NOLUNS},
    588 	{{T_DIRECT, T_FIXED,
    589 	 "SEAGATE ", "ST125N          ", ""},     PQUIRK_NOLUNS},
    590 	{{T_DIRECT, T_FIXED,
    591 	 "SEAGATE ", "ST157N          ", ""},     PQUIRK_NOLUNS},
    592 	{{T_DIRECT, T_FIXED,
    593 	 "SEAGATE ", "ST296           ", ""},     PQUIRK_NOLUNS},
    594 	{{T_DIRECT, T_FIXED,
    595 	 "SEAGATE ", "ST296N          ", ""},     PQUIRK_NOLUNS},
    596 	{{T_DIRECT, T_FIXED,
    597 	 "SEAGATE ", "ST11200N SUN1.05", ""},     PQUIRK_NOTAG},
    598 	{{T_DIRECT, T_FIXED,
    599 	 "SEAGATE ", "ST15150N        ", ""},     PQUIRK_NOTAG},
    600 	{{T_DIRECT, T_FIXED,
    601 	 "SEAGATE ", "ST19171",          ""},     PQUIRK_NOMODESENSE},
    602 	{{T_DIRECT, T_FIXED,
    603 	 "SEAGATE ", "ST32430N",         ""},     PQUIRK_CAP_SYNC},
    604 	{{T_DIRECT, T_FIXED,
    605 	 "SEAGATE ", "ST34501FC       ", ""},     PQUIRK_NOMODESENSE},
    606 	{{T_DIRECT, T_FIXED,
    607 	 "TOSHIBA ", "MK538FB         ", "6027"}, PQUIRK_NOLUNS},
    608 	{{T_DIRECT, T_FIXED,
    609 	 "VMware", "Virtual",           "1.0"},
    610 				PQUIRK_NOSTARTUNIT|PQUIRK_NODOORLOCK},
    611 	{{T_DIRECT, T_FIXED,	/* XXX move to umass */
    612 	 "Maxtor 4", "D080H4",           "DAH0"}, PQUIRK_NOMODESENSE},
    613 	{{T_DIRECT, T_FIXED,	/* XXX move to umass */
    614 	 "Maxtor 4", "D040H2",           "DAH0"}, PQUIRK_NOMODESENSE},
    615 
    616 	{{T_DIRECT, T_REMOV,
    617 	 "iomega", "jaz 1GB", 		 ""},	  PQUIRK_NOMODESENSE},
    618 	{{T_DIRECT, T_REMOV,
    619 	 "IOMEGA", "ZIP 100",		 ""},	  PQUIRK_NOMODESENSE},
    620 	{{T_DIRECT, T_REMOV,
    621 	 "IOMEGA", "ZIP 100",		 "J.03"},
    622 				PQUIRK_NOMODESENSE|PQUIRK_NOLUNS},
    623 	/* Letting the motor run kills floppy drives and disks quite fast. */
    624 	{{T_DIRECT, T_REMOV,
    625 	 "TEAC", "FC-1",		 ""},	  PQUIRK_NOSTARTUNIT},
    626 	{{T_DIRECT, T_REMOV,
    627 	 "INSITE", "I325VM",             ""},
    628 				PQUIRK_NOLUNS|PQUIRK_NODOORLOCK},
    629 
    630 	/* XXX: QIC-36 tape behind Emulex adapter.  Very broken. */
    631 	{{T_SEQUENTIAL, T_REMOV,
    632 	 "        ", "                ", "    "}, PQUIRK_NOLUNS},
    633 	{{T_SEQUENTIAL, T_REMOV,
    634 	 "EMULEX  ", "MT-02 QIC       ", ""},     PQUIRK_NOLUNS},
    635 	{{T_SEQUENTIAL, T_REMOV,
    636 	 "CALIPER ", "CP150           ", ""},     PQUIRK_NOLUNS},
    637 	{{T_SEQUENTIAL, T_REMOV,
    638 	 "EXABYTE ", "EXB-8200        ", ""},     PQUIRK_NOLUNS},
    639 	{{T_SEQUENTIAL, T_REMOV,
    640 	 "SONY    ", "GY-10C          ", ""},     PQUIRK_NOLUNS},
    641 	{{T_SEQUENTIAL, T_REMOV,
    642 	 "SONY    ", "SDT-2000        ", "2.09"}, PQUIRK_NOLUNS},
    643 	{{T_SEQUENTIAL, T_REMOV,
    644 	 "SONY    ", "SDT-5000        ", "3."},   PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    645 	{{T_SEQUENTIAL, T_REMOV,
    646 	 "SONY    ", "SDT-5200        ", "3."},   PQUIRK_NOLUNS},
    647 	{{T_SEQUENTIAL, T_REMOV,
    648 	 "TANDBERG", " TDC 3600       ", ""},     PQUIRK_NOLUNS},
    649 	/* Following entry reported as a Tandberg 3600; ref. PR1933 */
    650 	{{T_SEQUENTIAL, T_REMOV,
    651 	 "ARCHIVE ", "VIPER 150  21247", ""},     PQUIRK_NOLUNS},
    652 	/* Following entry for a Cipher ST150S; ref. PR4171 */
    653 	{{T_SEQUENTIAL, T_REMOV,
    654 	 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, PQUIRK_NOLUNS},
    655 	{{T_SEQUENTIAL, T_REMOV,
    656 	 "ARCHIVE ", "Python 28454-XXX", ""},     PQUIRK_NOLUNS},
    657 	{{T_SEQUENTIAL, T_REMOV,
    658 	 "WANGTEK ", "5099ES SCSI",      ""},     PQUIRK_NOLUNS},
    659 	{{T_SEQUENTIAL, T_REMOV,
    660 	 "WANGTEK ", "5150ES SCSI",      ""},     PQUIRK_NOLUNS},
    661 	{{T_SEQUENTIAL, T_REMOV,
    662 	 "WANGTEK ", "SCSI-36",		 ""},     PQUIRK_NOLUNS},
    663 	{{T_SEQUENTIAL, T_REMOV,
    664 	 "WangDAT ", "Model 1300      ", "02.4"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    665 	{{T_SEQUENTIAL, T_REMOV,
    666 	 "WangDAT ", "Model 2600      ", "01.7"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    667 	{{T_SEQUENTIAL, T_REMOV,
    668 	 "WangDAT ", "Model 3200      ", "02.2"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
    669 	{{T_SEQUENTIAL, T_REMOV,
    670 	 "TEAC    ", "MT-2ST/N50      ", ""},     PQUIRK_NOLUNS},
    671 
    672 	{{T_SCANNER, T_FIXED,
    673 	 "RICOH   ", "IS60            ", "1R08"}, PQUIRK_NOLUNS},
    674 	{{T_SCANNER, T_FIXED,
    675 	 "UMAX    ", "Astra 1200S     ", "V2.9"}, PQUIRK_NOLUNS},
    676 	{{T_SCANNER, T_FIXED,
    677 	 "UMAX    ", "Astra 1220S     ", ""},     PQUIRK_NOLUNS},
    678 	{{T_SCANNER, T_FIXED,
    679 	 "UMAX    ", "UMAX S-6E       ", "V2.0"}, PQUIRK_NOLUNS},
    680 	{{T_SCANNER, T_FIXED,
    681 	 "UMAX    ", "UMAX S-12       ", "V2.1"}, PQUIRK_NOLUNS},
    682 	{{T_SCANNER, T_FIXED,
    683 	 "ULTIMA  ", "A6000C          ", ""},     PQUIRK_NOLUNS},
    684 	{{T_PROCESSOR, T_FIXED,
    685 	 "SYMBIOS",  "",                 ""},     PQUIRK_NOLUNS},
    686 	{{T_PROCESSOR, T_FIXED,
    687 	 "LITRONIC", "PCMCIA          ", ""},     PQUIRK_NOLUNS},
    688 	{{T_CHANGER, T_REMOV,
    689 	 "SONY    ", "CDL1100         ", ""},     PQUIRK_NOLUNS},
    690 	{{T_ENCLOSURE, T_FIXED,
    691 	 "SUN     ", "SENA            ", ""},     PQUIRK_NOLUNS},
    692 };
    693 
    694 /*
    695  * given a target and lun, ask the device what
    696  * it is, and find the correct driver table
    697  * entry.
    698  */
    699 int
    700 scsi_probe_device(sc, target, lun)
    701 	struct scsibus_softc *sc;
    702 	int target, lun;
    703 {
    704 	struct scsipi_channel *chan = sc->sc_channel;
    705 	struct scsipi_periph *periph;
    706 	struct scsipi_inquiry_data inqbuf;
    707 	struct scsi_quirk_inquiry_pattern *finger;
    708 	int checkdtype, priority, docontinue, quirks;
    709 	struct scsipibus_attach_args sa;
    710 	struct cfdata *cf;
    711 
    712 	/*
    713 	 * Assume no more luns to search after this one.
    714 	 * If we successfully get Inquiry data and after
    715 	 * merging quirks we find we can probe for more
    716 	 * luns, we will.
    717 	 */
    718 	docontinue = 0;
    719 
    720 	/* Skip this slot if it is already attached. */
    721 	if (scsipi_lookup_periph(chan, target, lun) != NULL)
    722 		return (docontinue);
    723 
    724 	periph = scsipi_alloc_periph(M_NOWAIT);
    725 	if (periph == NULL) {
    726 #ifdef	DIAGNOSTIC
    727 		printf("%s: cannot allocate periph for target %d lun %d\n",
    728 		    sc->sc_dev.dv_xname, target, lun);
    729 #endif
    730 		return (ENOMEM);
    731 	}
    732 	periph->periph_channel = chan;
    733 	periph->periph_switch = &scsi_probe_dev;
    734 
    735 	periph->periph_target = target;
    736 	periph->periph_lun = lun;
    737 	periph->periph_quirks = chan->chan_defquirks;
    738 
    739 #ifdef SCSIPI_DEBUG
    740 	if (SCSIPI_DEBUG_TYPE == SCSIPI_BUSTYPE_SCSI &&
    741 	    SCSIPI_DEBUG_TARGET == target &&
    742 	    SCSIPI_DEBUG_LUN == lun)
    743 		periph->periph_dbflags |= SCSIPI_DEBUG_FLAGS;
    744 #endif
    745 
    746 	/*
    747 	 * Ask the device what it is
    748 	 */
    749 	(void) scsipi_test_unit_ready(periph,
    750 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    751 	    XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE);
    752 
    753 #ifdef SCSI_2_DEF
    754 	/* some devices need to be told to go to SCSI2 */
    755 	/* However some just explode if you tell them this.. leave it out */
    756 	scsi_change_def(periph, XS_CTL_DISCOVERY | XS_CTL_SILENT);
    757 #endif /* SCSI_2_DEF */
    758 
    759 	/* Now go ask the device all about itself. */
    760 	memset(&inqbuf, 0, sizeof(inqbuf));
    761 	if (scsipi_inquire(periph, &inqbuf,
    762 	    XS_CTL_DISCOVERY | XS_CTL_DATA_ONSTACK) != 0)
    763 		goto bad;
    764 	{
    765 		u_int8_t *extension = &inqbuf.flags1;
    766 		int len = inqbuf.additional_length;
    767 		while (len < 3)
    768 			extension[len++] = '\0';
    769 		while (len < 3 + 28)
    770 			extension[len++] = ' ';
    771 		while (len < 3 + 28 + 20)
    772 			extension[len++] = '\0';
    773 		while (len < 3 + 28 + 20 + 1)
    774 			extension[len++] = '\0';
    775 		while (len < 3 + 28 + 20 + 1 + 1)
    776 			extension[len++] = '\0';
    777 		while (len < 3 + 28 + 20 + 1 + 1 + (8*2))
    778 			extension[len++] = ' ';
    779 	}
    780 
    781 	periph->periph_type = inqbuf.device & SID_TYPE;
    782 	if (inqbuf.dev_qual2 & SID_REMOVABLE)
    783 		periph->periph_flags |= PERIPH_REMOVABLE;
    784 	periph->periph_version = inqbuf.version & SID_ANSII;
    785 
    786 	/*
    787 	 * Any device qualifier that has the top bit set (qualifier&4 != 0)
    788 	 * is vendor specific and won't match in this switch.
    789 	 * All we do here is throw out bad/negative responses.
    790 	 */
    791 	checkdtype = 0;
    792 	switch (inqbuf.device & SID_QUAL) {
    793 	case SID_QUAL_LU_PRESENT:
    794 	case SID_QUAL_LU_NOTPRESENT:
    795 		checkdtype = 1;
    796 		break;
    797 
    798 	case SID_QUAL_reserved:
    799 	case SID_QUAL_LU_NOT_SUPP:
    800 		goto bad;
    801 
    802 	default:
    803 		break;
    804 	}
    805 
    806 	/* Let the adapter driver handle the device separatley if it wants. */
    807 	if (chan->chan_adapter->adapt_accesschk != NULL &&
    808 	    (*chan->chan_adapter->adapt_accesschk)(periph, &sa.sa_inqbuf))
    809 		goto bad;
    810 
    811 	if (checkdtype) {
    812 		switch (periph->periph_type) {
    813 		case T_DIRECT:
    814 		case T_SEQUENTIAL:
    815 		case T_PRINTER:
    816 		case T_PROCESSOR:
    817 		case T_WORM:
    818 		case T_CDROM:
    819 		case T_SCANNER:
    820 		case T_OPTICAL:
    821 		case T_CHANGER:
    822 		case T_COMM:
    823 		case T_IT8_1:
    824 		case T_IT8_2:
    825 		case T_STORARRAY:
    826 		case T_ENCLOSURE:
    827 		case T_SIMPLE_DIRECT:
    828 		case T_OPTIC_CARD_RW:
    829 		case T_OBJECT_STORED:
    830 		default:
    831 			break;
    832 		case T_NODEVICE:
    833 			goto bad;
    834 		}
    835 	}
    836 
    837 	sa.sa_periph = periph;
    838 	sa.sa_inqbuf.type = inqbuf.device;
    839 	sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
    840 	    T_REMOV : T_FIXED;
    841 	sa.sa_inqbuf.vendor = inqbuf.vendor;
    842 	sa.sa_inqbuf.product = inqbuf.product;
    843 	sa.sa_inqbuf.revision = inqbuf.revision;
    844 	sa.scsipi_info.scsi_version = inqbuf.version;
    845 	sa.sa_inqptr = &inqbuf;
    846 
    847 	finger = (struct scsi_quirk_inquiry_pattern *)scsipi_inqmatch(
    848 	    &sa.sa_inqbuf, (caddr_t)scsi_quirk_patterns,
    849 	    sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
    850 	    sizeof(scsi_quirk_patterns[0]), &priority);
    851 
    852 	if (finger != NULL)
    853 		quirks = finger->quirks;
    854 	else
    855 		quirks = 0;
    856 
    857 	/*
    858 	 * Determine the operating mode capabilities of the device.
    859 	 */
    860 	if (periph->periph_version >= 2) {
    861 		if ((inqbuf.flags3 & SID_CmdQue) != 0 &&
    862 		    (quirks & PQUIRK_NOTAG) == 0)
    863 			periph->periph_cap |= PERIPH_CAP_TQING;
    864 		if ((inqbuf.flags3 & SID_Linked) != 0)
    865 			periph->periph_cap |= PERIPH_CAP_LINKCMDS;
    866 		if ((inqbuf.flags3 & SID_Sync) != 0 &&
    867 		    (quirks & PQUIRK_NOSYNC) == 0)
    868 			periph->periph_cap |= PERIPH_CAP_SYNC;
    869 		if ((inqbuf.flags3 & SID_WBus16) != 0 &&
    870 		    (quirks & PQUIRK_NOWIDE) == 0)
    871 			periph->periph_cap |= PERIPH_CAP_WIDE16;
    872 		if ((inqbuf.flags3 & SID_WBus32) != 0 &&
    873 		    (quirks & PQUIRK_NOWIDE) == 0)
    874 			periph->periph_cap |= PERIPH_CAP_WIDE32;
    875 		if ((inqbuf.flags3 & SID_SftRe) != 0)
    876 			periph->periph_cap |= PERIPH_CAP_SFTRESET;
    877 		if ((inqbuf.flags3 & SID_RelAdr) != 0)
    878 			periph->periph_cap |= PERIPH_CAP_RELADR;
    879 		if (periph->periph_version >= 3) { /* SPC-2 */
    880 			/*
    881 			 * Report ST clocking though CAP_WIDExx/CAP_SYNC.
    882 			 * If the device only supports DT, clear these
    883 			 * flags (DT implies SYNC and WIDE)
    884 			 */
    885 			switch (inqbuf.flags4 & SID_Clocking) {
    886 			case SID_CLOCKING_DT_ONLY:
    887 				periph->periph_cap &=
    888 				    ~(PERIPH_CAP_SYNC |
    889 				      PERIPH_CAP_WIDE16 |
    890 				      PERIPH_CAP_WIDE32);
    891 				/* FALLTHOUGH */
    892 			case SID_CLOCKING_SD_DT:
    893 				periph->periph_cap |= PERIPH_CAP_DT;
    894 				break;
    895 			default: /* ST only or invalid */
    896 				/* nothing to do */
    897 				break;
    898 			}
    899 			if (inqbuf.flags4 & SID_IUS)
    900 				periph->periph_cap |= PERIPH_CAP_IUS;
    901 			if (inqbuf.flags4 & SID_QAS)
    902 				periph->periph_cap |= PERIPH_CAP_QAS;
    903 		}
    904 	}
    905 	if (quirks & PQUIRK_CAP_SYNC)
    906 		periph->periph_cap |= PERIPH_CAP_SYNC;
    907 	if (quirks & PQUIRK_CAP_WIDE16)
    908 		periph->periph_cap |= PERIPH_CAP_WIDE16;
    909 
    910 	/*
    911 	 * Now apply any quirks from the table.
    912 	 */
    913 	periph->periph_quirks |= quirks;
    914 	if (periph->periph_version == 0 &&
    915 	    (periph->periph_quirks & PQUIRK_FORCELUNS) == 0)
    916 		periph->periph_quirks |= PQUIRK_NOLUNS;
    917 
    918 	if (periph->periph_quirks & PQUIRK_CDROM) {
    919 		periph->periph_quirks ^= PQUIRK_CDROM;
    920 		inqbuf.dev_qual2 |= SID_REMOVABLE;
    921 		sa.sa_inqbuf.type = inqbuf.device =
    922 		    ((inqbuf.device & ~SID_REMOVABLE) | T_CDROM);
    923 		sa.sa_inqbuf.removable = T_REMOV;
    924 	}
    925 
    926 	if ((periph->periph_quirks & PQUIRK_NOLUNS) == 0)
    927 		docontinue = 1;
    928 
    929 	if ((cf = config_search(scsibussubmatch, &sc->sc_dev, &sa)) != NULL) {
    930 		scsipi_insert_periph(chan, periph);
    931 		/*
    932 		 * XXX Can't assign periph_dev here, because we'll
    933 		 * XXX need it before config_attach() returns.  Must
    934 		 * XXX assign it in periph driver.
    935 		 */
    936 		(void) config_attach(&sc->sc_dev, cf, &sa, scsibusprint);
    937 	} else {
    938 		scsibusprint(&sa, sc->sc_dev.dv_xname);
    939 		printf(" not configured\n");
    940 		goto bad;
    941 	}
    942 
    943 	return (docontinue);
    944 
    945 bad:
    946 	free(periph, M_DEVBUF);
    947 	return (docontinue);
    948 }
    949 
    950 /****** Entry points for user control of the SCSI bus. ******/
    951 
    952 int
    953 scsibusopen(dev, flag, fmt, p)
    954 	dev_t dev;
    955 	int flag, fmt;
    956 	struct proc *p;
    957 {
    958 	struct scsibus_softc *sc;
    959 	int error, unit = minor(dev);
    960 
    961 	if (unit >= scsibus_cd.cd_ndevs ||
    962 	    (sc = scsibus_cd.cd_devs[unit]) == NULL)
    963 		return (ENXIO);
    964 
    965 	if (sc->sc_flags & SCSIBUSF_OPEN)
    966 		return (EBUSY);
    967 
    968 	if ((error = scsipi_adapter_addref(sc->sc_channel->chan_adapter)) != 0)
    969 		return (error);
    970 
    971 	sc->sc_flags |= SCSIBUSF_OPEN;
    972 
    973 	return (0);
    974 }
    975 
    976 int
    977 scsibusclose(dev, flag, fmt, p)
    978 	dev_t dev;
    979 	int flag, fmt;
    980 	struct proc *p;
    981 {
    982 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
    983 
    984 	scsipi_adapter_delref(sc->sc_channel->chan_adapter);
    985 
    986 	sc->sc_flags &= ~SCSIBUSF_OPEN;
    987 
    988 	return (0);
    989 }
    990 
    991 int
    992 scsibusioctl(dev, cmd, addr, flag, p)
    993 	dev_t dev;
    994 	u_long cmd;
    995 	caddr_t addr;
    996 	int flag;
    997 	struct proc *p;
    998 {
    999 	struct scsibus_softc *sc = scsibus_cd.cd_devs[minor(dev)];
   1000 	struct scsipi_channel *chan = sc->sc_channel;
   1001 	int error;
   1002 
   1003 	/*
   1004 	 * Enforce write permission for ioctls that change the
   1005 	 * state of the bus.  Host adapter specific ioctls must
   1006 	 * be checked by the adapter driver.
   1007 	 */
   1008 	switch (cmd) {
   1009 	case SCBUSIOSCAN:
   1010 	case SCBUSIODETACH:
   1011 	case SCBUSIORESET:
   1012 		if ((flag & FWRITE) == 0)
   1013 			return (EBADF);
   1014 	}
   1015 
   1016 	switch (cmd) {
   1017 	case SCBUSIOSCAN:
   1018 	    {
   1019 		struct scbusioscan_args *a =
   1020 		    (struct scbusioscan_args *)addr;
   1021 
   1022 		error = scsi_probe_bus(sc, a->sa_target, a->sa_lun);
   1023 		break;
   1024 	    }
   1025 
   1026 	case SCBUSIODETACH:
   1027 	    {
   1028 		struct scbusiodetach_args *a =
   1029 		    (struct scbusiodetach_args *)addr;
   1030 
   1031 		error = scsipi_target_detach(chan, a->sa_target, a->sa_lun, 0);
   1032 		break;
   1033 	    }
   1034 
   1035 
   1036 	case SCBUSIORESET:
   1037 		/* FALLTHROUGH */
   1038 	default:
   1039 		if (chan->chan_adapter->adapt_ioctl == NULL)
   1040 			error = ENOTTY;
   1041 		else
   1042 			error = (*chan->chan_adapter->adapt_ioctl)(chan,
   1043 			    cmd, addr, flag, p);
   1044 		break;
   1045 	}
   1046 
   1047 	return (error);
   1048 }
   1049