scsiconf.c revision 1.275.2.1 1 /* $NetBSD: scsiconf.c,v 1.275.2.1 2017/01/07 08:56:41 pgoyette Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 1999, 2004 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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * Originally written by Julian Elischer (julian (at) tfs.com)
35 * for TRW Financial Systems for use under the MACH(2.5) operating system.
36 *
37 * TRW Financial Systems, in accordance with their agreement with Carnegie
38 * Mellon University, makes this software available to CMU to distribute
39 * or use in any manner that they see fit as long as this message is kept with
40 * the software. For this reason TFS also grants any other persons or
41 * organisations permission to use or modify this software.
42 *
43 * TFS supplies this software to be publicly redistributed
44 * on the understanding that TFS is not responsible for the correct
45 * functioning of this software in any circumstances.
46 *
47 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992
48 */
49
50 #include <sys/cdefs.h>
51 __KERNEL_RCSID(0, "$NetBSD: scsiconf.c,v 1.275.2.1 2017/01/07 08:56:41 pgoyette Exp $");
52
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
56 #include <sys/proc.h>
57 #include <sys/kthread.h>
58 #include <sys/malloc.h>
59 #include <sys/mutex.h>
60 #include <sys/once.h>
61 #include <sys/device.h>
62 #include <sys/conf.h>
63 #include <sys/fcntl.h>
64 #include <sys/scsiio.h>
65 #include <sys/queue.h>
66 #include <sys/atomic.h>
67
68 #include <dev/scsipi/scsi_all.h>
69 #include <dev/scsipi/scsipi_all.h>
70 #include <dev/scsipi/scsiconf.h>
71
72 #include "locators.h"
73
74 static const struct scsipi_periphsw scsi_probe_dev = {
75 NULL,
76 NULL,
77 NULL,
78 NULL,
79 };
80
81 struct scsi_initq {
82 struct scsipi_channel *sc_channel;
83 TAILQ_ENTRY(scsi_initq) scsi_initq;
84 };
85
86 static ONCE_DECL(scsi_conf_ctrl);
87 static TAILQ_HEAD(, scsi_initq) scsi_initq_head;
88 static kmutex_t scsibus_qlock;
89 static kcondvar_t scsibus_qcv;
90
91 static int scsi_probe_device(struct scsibus_softc *, int, int);
92
93 static int scsibusmatch(device_t, cfdata_t, void *);
94 static void scsibusattach(device_t, device_t, void *);
95 static int scsibusdetach(device_t, int flags);
96 static int scsibusrescan(device_t, const char *, const int *);
97 static void scsidevdetached(device_t, device_t);
98
99 CFATTACH_DECL3_NEW(scsibus, sizeof(struct scsibus_softc),
100 scsibusmatch, scsibusattach, scsibusdetach, NULL,
101 scsibusrescan, scsidevdetached, DVF_DETACH_SHUTDOWN);
102
103 extern struct cfdriver scsibus_cd;
104
105 static dev_type_open(scsibusopen);
106 static dev_type_close(scsibusclose);
107 static dev_type_ioctl(scsibusioctl);
108
109 const struct cdevsw scsibus_cdevsw = {
110 .d_open = scsibusopen,
111 .d_close = scsibusclose,
112 .d_read = noread,
113 .d_write = nowrite,
114 .d_ioctl = scsibusioctl,
115 .d_stop = nostop,
116 .d_tty = notty,
117 .d_poll = nopoll,
118 .d_mmap = nommap,
119 .d_kqfilter = nokqfilter,
120 .d_discard = nodiscard,
121 .d_flag = D_OTHER | D_MPSAFE
122 };
123
124 static int scsibusprint(void *, const char *);
125 static void scsibus_discover_thread(void *);
126 static void scsibus_config(struct scsibus_softc *);
127
128 const struct scsipi_bustype scsi_bustype = {
129 SCSIPI_BUSTYPE_BUSTYPE(SCSIPI_BUSTYPE_SCSI, SCSIPI_BUSTYPE_SCSI_PSCSI),
130 scsi_scsipi_cmd,
131 scsipi_interpret_sense,
132 scsi_print_addr,
133 scsi_kill_pending,
134 scsi_async_event_xfer_mode,
135 };
136
137 const struct scsipi_bustype scsi_fc_bustype = {
138 SCSIPI_BUSTYPE_BUSTYPE(SCSIPI_BUSTYPE_SCSI, SCSIPI_BUSTYPE_SCSI_FC),
139 scsi_scsipi_cmd,
140 scsipi_interpret_sense,
141 scsi_print_addr,
142 scsi_kill_pending,
143 scsi_fc_sas_async_event_xfer_mode,
144 };
145
146 const struct scsipi_bustype scsi_sas_bustype = {
147 SCSIPI_BUSTYPE_BUSTYPE(SCSIPI_BUSTYPE_SCSI, SCSIPI_BUSTYPE_SCSI_SAS),
148 scsi_scsipi_cmd,
149 scsipi_interpret_sense,
150 scsi_print_addr,
151 scsi_kill_pending,
152 scsi_fc_sas_async_event_xfer_mode,
153 };
154
155 const struct scsipi_bustype scsi_usb_bustype = {
156 SCSIPI_BUSTYPE_BUSTYPE(SCSIPI_BUSTYPE_SCSI, SCSIPI_BUSTYPE_SCSI_USB),
157 scsi_scsipi_cmd,
158 scsipi_interpret_sense,
159 scsi_print_addr,
160 scsi_kill_pending,
161 NULL,
162 };
163
164 static int
165 scsibus_init(void)
166 {
167
168 TAILQ_INIT(&scsi_initq_head);
169 mutex_init(&scsibus_qlock, MUTEX_DEFAULT, IPL_NONE);
170 cv_init(&scsibus_qcv, "scsinitq");
171 return 0;
172 }
173
174 int
175 scsiprint(void *aux, const char *pnp)
176 {
177 struct scsipi_channel *chan = aux;
178 struct scsipi_adapter *adapt = chan->chan_adapter;
179
180 /* only "scsibus"es can attach to "scsi"s; easy. */
181 if (pnp)
182 aprint_normal("scsibus at %s", pnp);
183
184 /* don't print channel if the controller says there can be only one. */
185 if (adapt->adapt_nchannels != 1)
186 aprint_normal(" channel %d", chan->chan_channel);
187
188 return (UNCONF);
189 }
190
191 static int
192 scsibusmatch(device_t parent, cfdata_t cf, void *aux)
193 {
194 struct scsipi_channel *chan = aux;
195
196 if (SCSIPI_BUSTYPE_TYPE(chan->chan_bustype->bustype_type) !=
197 SCSIPI_BUSTYPE_SCSI)
198 return 0;
199
200 if (cf->cf_loc[SCSICF_CHANNEL] != chan->chan_channel &&
201 cf->cf_loc[SCSICF_CHANNEL] != SCSICF_CHANNEL_DEFAULT)
202 return (0);
203
204 return (1);
205 }
206
207 static void
208 scsibusattach(device_t parent, device_t self, void *aux)
209 {
210 struct scsibus_softc *sc = device_private(self);
211 struct scsipi_channel *chan = aux;
212 struct scsi_initq *scsi_initq;
213
214 if (!pmf_device_register(self, NULL, NULL))
215 aprint_error_dev(self, "couldn't establish power handler\n");
216
217 sc->sc_dev = self;
218 sc->sc_channel = chan;
219 chan->chan_name = device_xname(sc->sc_dev);
220
221 aprint_naive(": SCSI bus\n");
222 aprint_normal(": %d target%s, %d lun%s per target\n",
223 chan->chan_ntargets,
224 chan->chan_ntargets == 1 ? "" : "s",
225 chan->chan_nluns,
226 chan->chan_nluns == 1 ? "" : "s");
227
228 /*
229 * XXX
230 * newer adapters support more than 256 outstanding commands
231 * per periph and don't use the tag (they eventually allocate one
232 * internally). Right now scsipi always allocate a tag and
233 * is limited to 256 tags, per scsi specs.
234 * this should be revisited
235 */
236 if (chan->chan_flags & SCSIPI_CHAN_OPENINGS) {
237 if (chan->chan_max_periph > 256)
238 chan->chan_max_periph = 256;
239 } else {
240 if (chan->chan_adapter->adapt_max_periph > 256)
241 chan->chan_adapter->adapt_max_periph = 256;
242 }
243
244 if (atomic_inc_uint_nv(&chan_running(chan)) == 1)
245 mutex_init(chan_mtx(chan), MUTEX_DEFAULT, IPL_BIO);
246
247 cv_init(&chan->chan_cv_thr, "scshut");
248 cv_init(&chan->chan_cv_comp, "sccomp");
249 cv_init(&chan->chan_cv_xs, "xscmd");
250
251 if (scsipi_adapter_addref(chan->chan_adapter))
252 return;
253
254 RUN_ONCE(&scsi_conf_ctrl, scsibus_init);
255
256 /* Initialize the channel structure first */
257 chan->chan_init_cb = NULL;
258 chan->chan_init_cb_arg = NULL;
259
260 scsi_initq = malloc(sizeof(struct scsi_initq), M_DEVBUF, M_WAITOK);
261 scsi_initq->sc_channel = chan;
262 TAILQ_INSERT_TAIL(&scsi_initq_head, scsi_initq, scsi_initq);
263 config_pending_incr(sc->sc_dev);
264 if (scsipi_channel_init(chan)) {
265 aprint_error_dev(sc->sc_dev, "failed to init channel\n");
266 return;
267 }
268
269 /*
270 * Create the discover thread
271 */
272 if (kthread_create(PRI_NONE, 0, NULL, scsibus_discover_thread, sc,
273 NULL, "%s-d", chan->chan_name)) {
274 aprint_error_dev(sc->sc_dev, "unable to create discovery "
275 "thread for channel %d\n", chan->chan_channel);
276 return;
277 }
278 }
279
280 static void
281 scsibus_discover_thread(void *arg)
282 {
283 struct scsibus_softc *sc = arg;
284
285 scsibus_config(sc);
286 kthread_exit(0);
287 }
288
289 static void
290 scsibus_config(struct scsibus_softc *sc)
291 {
292 struct scsipi_channel *chan = sc->sc_channel;
293 struct scsi_initq *scsi_initq;
294
295 #ifndef SCSI_DELAY
296 #define SCSI_DELAY 2
297 #endif
298 if ((chan->chan_flags & SCSIPI_CHAN_NOSETTLE) == 0 &&
299 SCSI_DELAY > 0) {
300 aprint_normal_dev(sc->sc_dev,
301 "waiting %d seconds for devices to settle...\n",
302 SCSI_DELAY);
303 /* ...an identifier we know no one will use... */
304 kpause("scsidly", false, SCSI_DELAY * hz, NULL);
305 }
306
307 /* Make sure the devices probe in scsibus order to avoid jitter. */
308 mutex_enter(&scsibus_qlock);
309 for (;;) {
310 scsi_initq = TAILQ_FIRST(&scsi_initq_head);
311 if (scsi_initq->sc_channel == chan)
312 break;
313 cv_wait(&scsibus_qcv, &scsibus_qlock);
314 }
315 mutex_exit(&scsibus_qlock);
316
317 scsi_probe_bus(sc, -1, -1);
318
319 mutex_enter(&scsibus_qlock);
320 TAILQ_REMOVE(&scsi_initq_head, scsi_initq, scsi_initq);
321 cv_broadcast(&scsibus_qcv);
322 mutex_exit(&scsibus_qlock);
323
324 free(scsi_initq, M_DEVBUF);
325
326 scsipi_adapter_delref(chan->chan_adapter);
327
328 config_pending_decr(sc->sc_dev);
329 }
330
331 static int
332 scsibusdetach(device_t self, int flags)
333 {
334 struct scsibus_softc *sc = device_private(self);
335 struct scsipi_channel *chan = sc->sc_channel;
336 struct scsipi_periph *periph;
337 int ctarget, clun;
338 struct scsipi_xfer *xs;
339 int error;
340
341 /*
342 * Detach all of the periphs.
343 */
344 if ((error = scsipi_target_detach(chan, -1, -1, flags)) != 0)
345 return error;
346
347 pmf_device_deregister(self);
348
349 /*
350 * Process outstanding commands (which will never complete as the
351 * controller is gone).
352 *
353 * XXX Surely this is redundant? If we get this far, the
354 * XXX peripherals have all been detached.
355 */
356 for (ctarget = 0; ctarget < chan->chan_ntargets; ctarget++) {
357 if (ctarget == chan->chan_id)
358 continue;
359 for (clun = 0; clun < chan->chan_nluns; clun++) {
360 periph = scsipi_lookup_periph(chan, ctarget, clun);
361 if (periph == NULL)
362 continue;
363 TAILQ_FOREACH(xs, &periph->periph_xferq, device_q) {
364 callout_stop(&xs->xs_callout);
365 xs->error = XS_DRIVER_STUFFUP;
366 scsipi_done(xs);
367 }
368 }
369 }
370
371 /*
372 * Now shut down the channel.
373 */
374 scsipi_channel_shutdown(chan);
375
376 cv_destroy(&chan->chan_cv_xs);
377 cv_destroy(&chan->chan_cv_comp);
378 cv_destroy(&chan->chan_cv_thr);
379
380 if (atomic_dec_uint_nv(&chan_running(chan)) == 0)
381 mutex_destroy(chan_mtx(chan));
382
383 return 0;
384 }
385
386 /*
387 * Probe the requested scsi bus. It must be already set up.
388 * target and lun optionally narrow the search if not -1
389 */
390 int
391 scsi_probe_bus(struct scsibus_softc *sc, int target, int lun)
392 {
393 struct scsipi_channel *chan = sc->sc_channel;
394 int maxtarget, mintarget, maxlun, minlun;
395 int error;
396
397 if (target == -1) {
398 maxtarget = chan->chan_ntargets - 1;
399 mintarget = 0;
400 } else {
401 if (target < 0 || target >= chan->chan_ntargets)
402 return (EINVAL);
403 maxtarget = mintarget = target;
404 }
405
406 if (lun == -1) {
407 maxlun = chan->chan_nluns - 1;
408 minlun = 0;
409 } else {
410 if (lun < 0 || lun >= chan->chan_nluns)
411 return (EINVAL);
412 maxlun = minlun = lun;
413 }
414
415 /*
416 * Some HBAs provide an abstracted view of the bus; give them an
417 * oppertunity to re-scan it before we do.
418 */
419 scsipi_adapter_ioctl(chan, SCBUSIOLLSCAN, NULL, 0, curproc);
420
421 if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
422 goto ret;
423 for (target = mintarget; target <= maxtarget; target++) {
424 if (target == chan->chan_id)
425 continue;
426 for (lun = minlun; lun <= maxlun; lun++) {
427 /*
428 * See if there's a device present, and configure it.
429 */
430 if (scsi_probe_device(sc, target, lun) == 0)
431 break;
432 /* otherwise something says we should look further */
433 }
434
435 /*
436 * Now that we've discovered all of the LUNs on this
437 * I_T Nexus, update the xfer mode for all of them
438 * that we know about.
439 */
440 scsipi_set_xfer_mode(chan, target, 1);
441 }
442 scsipi_adapter_delref(chan->chan_adapter);
443 ret:
444 return (error);
445 }
446
447 static int
448 scsibusrescan(device_t sc, const char *ifattr,
449 const int *locators)
450 {
451
452 KASSERT(ifattr && !strcmp(ifattr, "scsibus"));
453 KASSERT(locators);
454
455 return (scsi_probe_bus(device_private(sc),
456 locators[SCSIBUSCF_TARGET], locators[SCSIBUSCF_LUN]));
457 }
458
459 static void
460 scsidevdetached(device_t self, device_t child)
461 {
462 struct scsibus_softc *sc = device_private(self);
463 struct scsipi_channel *chan = sc->sc_channel;
464 struct scsipi_periph *periph;
465 int target, lun;
466
467 target = device_locator(child, SCSIBUSCF_TARGET);
468 lun = device_locator(child, SCSIBUSCF_LUN);
469
470 mutex_enter(chan_mtx(chan));
471
472 periph = scsipi_lookup_periph_locked(chan, target, lun);
473 KASSERT(periph != NULL && periph->periph_dev == child);
474
475 scsipi_remove_periph(chan, periph);
476 scsipi_free_periph(periph);
477
478 mutex_exit(chan_mtx(chan));
479 }
480
481 /*
482 * Print out autoconfiguration information for a subdevice.
483 *
484 * This is a slight abuse of 'standard' autoconfiguration semantics,
485 * because 'print' functions don't normally print the colon and
486 * device information. However, in this case that's better than
487 * either printing redundant information before the attach message,
488 * or having the device driver call a special function to print out
489 * the standard device information.
490 */
491 static int
492 scsibusprint(void *aux, const char *pnp)
493 {
494 struct scsipibus_attach_args *sa = aux;
495 struct scsipi_inquiry_pattern *inqbuf;
496 u_int8_t type;
497 const char *dtype;
498 char vendor[33], product[65], revision[17];
499 int target, lun;
500
501 if (pnp != NULL)
502 aprint_normal("%s", pnp);
503
504 inqbuf = &sa->sa_inqbuf;
505
506 target = sa->sa_periph->periph_target;
507 lun = sa->sa_periph->periph_lun;
508 type = inqbuf->type & SID_TYPE;
509
510 dtype = scsipi_dtype(type);
511
512 strnvisx(vendor, sizeof(vendor), inqbuf->vendor, 8,
513 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
514 strnvisx(product, sizeof(product), inqbuf->product, 16,
515 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
516 strnvisx(revision, sizeof(revision), inqbuf->revision, 4,
517 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
518
519 aprint_normal(" target %d lun %d: <%s, %s, %s> %s %s",
520 target, lun, vendor, product, revision, dtype,
521 inqbuf->removable ? "removable" : "fixed");
522
523 return (UNCONF);
524 }
525
526 static const struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = {
527 {{T_DIRECT, T_REMOV,
528 "Apple ", "iPod ", ""}, PQUIRK_START},
529 {{T_CDROM, T_REMOV,
530 "CHINON ", "CD-ROM CDS-431 ", ""}, PQUIRK_NOLUNS},
531 {{T_CDROM, T_REMOV,
532 "CHINON ", "CD-ROM CDS-435 ", ""}, PQUIRK_NOLUNS},
533 {{T_CDROM, T_REMOV,
534 "Chinon ", "CD-ROM CDS-525 ", ""}, PQUIRK_NOLUNS},
535 {{T_CDROM, T_REMOV,
536 "CHINON ", "CD-ROM CDS-535 ", ""}, PQUIRK_NOLUNS},
537 {{T_CDROM, T_REMOV,
538 "DEC ", "RRD42 (C) DEC ", ""}, PQUIRK_NOLUNS},
539 {{T_CDROM, T_REMOV,
540 "DENON ", "DRD-25X ", "V"}, PQUIRK_NOLUNS},
541 {{T_CDROM, T_REMOV,
542 "GENERIC ", "CRD-BP2 ", ""}, PQUIRK_NOLUNS},
543 {{T_CDROM, T_REMOV,
544 "HP ", "C4324/C4325 ", ""}, PQUIRK_NOLUNS},
545 {{T_CDROM, T_REMOV,
546 "IMS ", "CDD521/10 ", "2.06"}, PQUIRK_NOLUNS},
547 {{T_CDROM, T_REMOV,
548 "MATSHITA", "CD-ROM CR-5XX ", "1.0b"}, PQUIRK_NOLUNS},
549 {{T_CDROM, T_REMOV,
550 "MEDAVIS ", "RENO CD-ROMX2A ", ""}, PQUIRK_NOLUNS},
551 {{T_CDROM, T_REMOV,
552 "MEDIAVIS", "CDR-H93MV ", "1.3"}, PQUIRK_NOLUNS},
553 {{T_CDROM, T_REMOV,
554 "NEC ", "CD-ROM DRIVE:502", ""}, PQUIRK_NOLUNS},
555 {{T_CDROM, T_REMOV,
556 "NEC ", "CD-ROM DRIVE:55 ", ""}, PQUIRK_NOLUNS},
557 {{T_CDROM, T_REMOV,
558 "NEC ", "CD-ROM DRIVE:83 ", ""}, PQUIRK_NOLUNS},
559 {{T_CDROM, T_REMOV,
560 "NEC ", "CD-ROM DRIVE:84 ", ""}, PQUIRK_NOLUNS},
561 {{T_CDROM, T_REMOV,
562 "NEC ", "CD-ROM DRIVE:841", ""}, PQUIRK_NOLUNS},
563 {{T_CDROM, T_REMOV,
564 "OLYMPUS ", "CDS620E ", "1.1d"},
565 PQUIRK_NOLUNS|PQUIRK_NOSYNC|PQUIRK_NOCAPACITY},
566 {{T_CDROM, T_REMOV,
567 "PIONEER ", "CD-ROM DR-124X ", "1.01"}, PQUIRK_NOLUNS},
568 {{T_CDROM, T_REMOV,
569 "PLEXTOR ", "CD-ROM PX-4XCS ", "1.01"},
570 PQUIRK_NOLUNS|PQUIRK_NOSYNC},
571 {{T_CDROM, T_REMOV,
572 "SONY ", "CD-ROM CDU-541 ", ""}, PQUIRK_NOLUNS},
573 {{T_CDROM, T_REMOV,
574 "SONY ", "CD-ROM CDU-55S ", ""}, PQUIRK_NOLUNS},
575 {{T_CDROM, T_REMOV,
576 "SONY ", "CD-ROM CDU-561 ", ""}, PQUIRK_NOLUNS},
577 {{T_CDROM, T_REMOV,
578 "SONY ", "CD-ROM CDU-76S", ""},
579 PQUIRK_NOLUNS|PQUIRK_NOSYNC|PQUIRK_NOWIDE},
580 {{T_CDROM, T_REMOV,
581 "SONY ", "CD-ROM CDU-8003A", ""}, PQUIRK_NOLUNS},
582 {{T_CDROM, T_REMOV,
583 "SONY ", "CD-ROM CDU-8012 ", ""}, PQUIRK_NOLUNS},
584 {{T_CDROM, T_REMOV,
585 "TEAC ", "CD-ROM ", "1.06"}, PQUIRK_NOLUNS},
586 {{T_CDROM, T_REMOV,
587 "TEAC ", "CD-ROM CD-56S ", "1.0B"}, PQUIRK_NOLUNS},
588 {{T_CDROM, T_REMOV,
589 "TEXEL ", "CD-ROM ", "1.06"}, PQUIRK_NOLUNS},
590 {{T_CDROM, T_REMOV,
591 "TEXEL ", "CD-ROM DM-XX24 K", "1.09"}, PQUIRK_NOLUNS},
592 {{T_CDROM, T_REMOV,
593 "TEXEL ", "CD-ROM DM-XX24 K", "1.10"}, PQUIRK_NOLUNS},
594 {{T_CDROM, T_REMOV,
595 "TOSHIBA ", "XM-4101TASUNSLCD", ""}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
596 /* "IBM CDRM00201 !F" 0724 is an IBM OEM Toshiba XM-4101BME */
597 {{T_CDROM, T_REMOV,
598 "IBM ", "CDRM00201 !F", "0724"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
599 {{T_CDROM, T_REMOV,
600 "ShinaKen", "CD-ROM DM-3x1S", "1.04"}, PQUIRK_NOLUNS},
601 {{T_CDROM, T_REMOV,
602 "JVC ", "R2626", ""}, PQUIRK_NOLUNS},
603 {{T_CDROM, T_REMOV,
604 "YAMAHA", "CRW8424S", ""}, PQUIRK_NOLUNS},
605 {{T_CDROM, T_REMOV,
606 "NEC ", "CD-ROM DRIVE:222", ""}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
607
608 {{T_DIRECT, T_FIXED,
609 "MICROP ", "1588-15MBSUN0669", ""}, PQUIRK_AUTOSAVE},
610 {{T_DIRECT, T_FIXED,
611 "MICROP ", "2217-15MQ1091501", ""}, PQUIRK_NOSYNCCACHE},
612 {{T_OPTICAL, T_REMOV,
613 "EPSON ", "OMD-5010 ", "3.08"}, PQUIRK_NOLUNS},
614 {{T_DIRECT, T_FIXED,
615 "ADAPTEC ", "AEC-4412BD", "1.2A"}, PQUIRK_NOMODESENSE},
616 {{T_DIRECT, T_FIXED,
617 "ADAPTEC ", "ACB-4000", ""}, PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE|PQUIRK_NOMODESENSE},
618 {{T_DIRECT, T_FIXED,
619 "DEC ", "RZ55 (C) DEC", ""}, PQUIRK_AUTOSAVE},
620 {{T_DIRECT, T_FIXED,
621 "EMULEX ", "MD21/S2 ESDI", "A00"},
622 PQUIRK_FORCELUNS|PQUIRK_AUTOSAVE},
623 {{T_DIRECT, T_FIXED,
624 "MICROP", "1548-15MZ1077801", "HZ2P"}, PQUIRK_NOTAG},
625 {{T_DIRECT, T_FIXED,
626 "HP ", "C372", ""}, PQUIRK_NOTAG},
627 {{T_DIRECT, T_FIXED,
628 "IBMRAID ", "0662S", ""}, PQUIRK_AUTOSAVE},
629 {{T_DIRECT, T_FIXED,
630 "IBM ", "0663H", ""}, PQUIRK_AUTOSAVE},
631 {{T_DIRECT, T_FIXED,
632 "IBM", "0664", ""}, PQUIRK_AUTOSAVE},
633 {{T_DIRECT, T_FIXED,
634 /* improperly report DT-only sync mode */
635 "IBM ", "DXHS36D", ""},
636 PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
637 {{T_DIRECT, T_FIXED,
638 "IBM ", "DXHS18Y", ""},
639 PQUIRK_CAP_SYNC|PQUIRK_CAP_WIDE16},
640 {{T_DIRECT, T_FIXED,
641 "IBM ", "H3171-S2", ""},
642 PQUIRK_NOLUNS|PQUIRK_AUTOSAVE},
643 {{T_DIRECT, T_FIXED,
644 "IBM ", "KZ-C", ""}, PQUIRK_AUTOSAVE},
645 /* Broken IBM disk */
646 {{T_DIRECT, T_FIXED,
647 "" , "DFRSS2F", ""}, PQUIRK_AUTOSAVE},
648 {{T_DIRECT, T_FIXED,
649 "Initio ", "", ""}, PQUIRK_NOBIGMODESENSE},
650 {{T_DIRECT, T_REMOV,
651 "MPL ", "MC-DISK- ", ""}, PQUIRK_NOLUNS},
652 {{T_DIRECT, T_FIXED,
653 "MAXTOR ", "XT-3280 ", ""}, PQUIRK_NOLUNS},
654 {{T_DIRECT, T_FIXED,
655 "MAXTOR ", "XT-4380S ", ""}, PQUIRK_NOLUNS},
656 {{T_DIRECT, T_FIXED,
657 "MAXTOR ", "MXT-1240S ", ""}, PQUIRK_NOLUNS},
658 {{T_DIRECT, T_FIXED,
659 "MAXTOR ", "XT-4170S ", ""}, PQUIRK_NOLUNS},
660 {{T_DIRECT, T_FIXED,
661 "MAXTOR ", "XT-8760S", ""}, PQUIRK_NOLUNS},
662 {{T_DIRECT, T_FIXED,
663 "MAXTOR ", "LXT-213S ", ""}, PQUIRK_NOLUNS},
664 {{T_DIRECT, T_FIXED,
665 "MAXTOR ", "LXT-213S SUN0207", ""}, PQUIRK_NOLUNS},
666 {{T_DIRECT, T_FIXED,
667 "MAXTOR ", "LXT-200S ", ""}, PQUIRK_NOLUNS},
668 {{T_DIRECT, T_FIXED,
669 "MEGADRV ", "EV1000", ""}, PQUIRK_NOMODESENSE},
670 {{T_DIRECT, T_FIXED,
671 "MICROP", "1991-27MZ", ""}, PQUIRK_NOTAG},
672 {{T_DIRECT, T_FIXED,
673 "MST ", "SnapLink ", ""}, PQUIRK_NOLUNS},
674 {{T_DIRECT, T_FIXED,
675 "NEC ", "D3847 ", "0307"}, PQUIRK_NOLUNS},
676 {{T_DIRECT, T_FIXED,
677 "QUANTUM ", "ELS85S ", ""}, PQUIRK_AUTOSAVE},
678 {{T_DIRECT, T_FIXED,
679 "QUANTUM ", "LPS525S ", ""}, PQUIRK_NOLUNS},
680 {{T_DIRECT, T_FIXED,
681 "QUANTUM ", "P105S 910-10-94x", ""}, PQUIRK_NOLUNS},
682 {{T_DIRECT, T_FIXED,
683 "QUANTUM ", "PD1225S ", ""}, PQUIRK_NOLUNS},
684 {{T_DIRECT, T_FIXED,
685 "QUANTUM ", "PD210S SUN0207", ""}, PQUIRK_NOLUNS},
686 {{T_DIRECT, T_FIXED,
687 "QUANTUM ", "ATLAS IV 9 WLS", "0A0A"}, PQUIRK_CAP_NODT},
688 {{T_DIRECT, T_FIXED,
689 "RODIME ", "RO3000S ", ""}, PQUIRK_NOLUNS},
690 {{T_DIRECT, T_FIXED,
691 "SEAGATE ", "ST125N ", ""}, PQUIRK_NOLUNS},
692 {{T_DIRECT, T_FIXED,
693 "SEAGATE ", "ST157N ", ""}, PQUIRK_NOLUNS},
694 {{T_DIRECT, T_FIXED,
695 "SEAGATE ", "ST296 ", ""}, PQUIRK_NOLUNS},
696 {{T_DIRECT, T_FIXED,
697 "SEAGATE ", "ST296N ", ""}, PQUIRK_NOLUNS},
698 {{T_DIRECT, T_FIXED,
699 "SEAGATE ", "ST318404LC ", ""}, PQUIRK_NOLUNS},
700 {{T_DIRECT, T_FIXED,
701 "SEAGATE ", "ST15150N ", ""}, PQUIRK_NOTAG},
702 {{T_DIRECT, T_FIXED,
703 "SEAGATE ", "ST19171", ""}, PQUIRK_NOMODESENSE},
704 {{T_DIRECT, T_FIXED,
705 "SEAGATE ", "ST32430N", ""}, PQUIRK_CAP_SYNC},
706 {{T_DIRECT, T_FIXED,
707 "SEAGATE ", "ST34501FC ", ""}, PQUIRK_NOMODESENSE},
708 {{T_DIRECT, T_FIXED,
709 "SEAGATE ", "SX910800N", ""}, PQUIRK_NOTAG},
710 {{T_DIRECT, T_FIXED,
711 "TOSHIBA ", "MK538FB ", "6027"}, PQUIRK_NOLUNS},
712 {{T_DIRECT, T_FIXED,
713 "MICROP ", "1924", ""}, PQUIRK_CAP_SYNC},
714 {{T_DIRECT, T_FIXED,
715 "FUJITSU ", "M2266", ""}, PQUIRK_CAP_SYNC},
716 {{T_DIRECT, T_FIXED,
717 "FUJITSU ", "M2624S-512 ", ""}, PQUIRK_CAP_SYNC},
718 {{T_DIRECT, T_FIXED,
719 "SEAGATE ", "SX336704LC" , ""}, PQUIRK_CAP_SYNC | PQUIRK_CAP_WIDE16},
720 {{T_DIRECT, T_FIXED,
721 "SEAGATE ", "SX173404LC", ""}, PQUIRK_CAP_SYNC | PQUIRK_CAP_WIDE16},
722
723 {{T_DIRECT, T_REMOV,
724 "IOMEGA", "ZIP 100", "J.03"}, PQUIRK_NOLUNS|PQUIRK_NOSYNC},
725 {{T_DIRECT, T_REMOV,
726 "INSITE", "I325VM", ""}, PQUIRK_NOLUNS},
727
728 /* XXX: QIC-36 tape behind Emulex adapter. Very broken. */
729 {{T_SEQUENTIAL, T_REMOV,
730 " ", " ", " "}, PQUIRK_NOLUNS},
731 {{T_SEQUENTIAL, T_REMOV,
732 "EMULEX ", "MT-02 QIC ", ""}, PQUIRK_NOLUNS},
733 {{T_SEQUENTIAL, T_REMOV,
734 "CALIPER ", "CP150 ", ""}, PQUIRK_NOLUNS},
735 {{T_SEQUENTIAL, T_REMOV,
736 "EXABYTE ", "EXB-8200 ", ""}, PQUIRK_NOLUNS},
737 {{T_SEQUENTIAL, T_REMOV,
738 "SONY ", "GY-10C ", ""}, PQUIRK_NOLUNS},
739 {{T_SEQUENTIAL, T_REMOV,
740 "SONY ", "SDT-2000 ", "2.09"}, PQUIRK_NOLUNS},
741 {{T_SEQUENTIAL, T_REMOV,
742 "SONY ", "SDT-5000 ", "3."}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
743 {{T_SEQUENTIAL, T_REMOV,
744 "SONY ", "SDT-5200 ", "3."}, PQUIRK_NOLUNS},
745 {{T_SEQUENTIAL, T_REMOV,
746 "TANDBERG", " TDC 3600 ", ""}, PQUIRK_NOLUNS},
747 /* Following entry reported as a Tandberg 3600; ref. PR1933 */
748 {{T_SEQUENTIAL, T_REMOV,
749 "ARCHIVE ", "VIPER 150 21247", ""}, PQUIRK_NOLUNS},
750 /* Following entry for a Cipher ST150S; ref. PR4171 */
751 {{T_SEQUENTIAL, T_REMOV,
752 "ARCHIVE ", "VIPER 1500 21247", "2.2G"}, PQUIRK_NOLUNS},
753 {{T_SEQUENTIAL, T_REMOV,
754 "ARCHIVE ", "Python 28454-XXX", ""}, PQUIRK_NOLUNS},
755 {{T_SEQUENTIAL, T_REMOV,
756 "WANGTEK ", "5099ES SCSI", ""}, PQUIRK_NOLUNS},
757 {{T_SEQUENTIAL, T_REMOV,
758 "WANGTEK ", "5150ES SCSI", ""}, PQUIRK_NOLUNS},
759 {{T_SEQUENTIAL, T_REMOV,
760 "WANGTEK ", "SCSI-36", ""}, PQUIRK_NOLUNS},
761 {{T_SEQUENTIAL, T_REMOV,
762 "WangDAT ", "Model 1300 ", "02.4"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
763 {{T_SEQUENTIAL, T_REMOV,
764 "WangDAT ", "Model 2600 ", "01.7"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
765 {{T_SEQUENTIAL, T_REMOV,
766 "WangDAT ", "Model 3200 ", "02.2"}, PQUIRK_NOSYNC|PQUIRK_NOWIDE},
767 {{T_SEQUENTIAL, T_REMOV,
768 "TEAC ", "MT-2ST/N50 ", ""}, PQUIRK_NOLUNS},
769
770 {{T_SCANNER, T_FIXED,
771 "RICOH ", "IS60 ", "1R08"}, PQUIRK_NOLUNS},
772 {{T_SCANNER, T_FIXED,
773 "UMAX ", "Astra 1200S ", "V2.9"}, PQUIRK_NOLUNS},
774 {{T_SCANNER, T_FIXED,
775 "UMAX ", "Astra 1220S ", ""}, PQUIRK_NOLUNS},
776 {{T_SCANNER, T_FIXED,
777 "UMAX ", "UMAX S-6E ", "V2.0"}, PQUIRK_NOLUNS},
778 {{T_SCANNER, T_FIXED,
779 "UMAX ", "UMAX S-12 ", "V2.1"}, PQUIRK_NOLUNS},
780 {{T_SCANNER, T_FIXED,
781 "ULTIMA ", "A6000C ", ""}, PQUIRK_NOLUNS},
782 {{T_PROCESSOR, T_FIXED,
783 "ESG-SHV", "SCA HSBP M15", ""}, PQUIRK_NOLUNS},
784 {{T_PROCESSOR, T_FIXED,
785 "SYMBIOS", "", ""}, PQUIRK_NOLUNS},
786 {{T_PROCESSOR, T_FIXED,
787 "LITRONIC", "PCMCIA ", ""}, PQUIRK_NOLUNS},
788 {{T_CHANGER, T_REMOV,
789 "SONY ", "CDL1100 ", ""}, PQUIRK_NOLUNS},
790 {{T_ENCLOSURE, T_FIXED,
791 "SUN ", "SENA ", ""}, PQUIRK_NOLUNS},
792 };
793
794 /*
795 * given a target and lun, ask the device what
796 * it is, and find the correct driver table
797 * entry.
798 */
799 static int
800 scsi_probe_device(struct scsibus_softc *sc, int target, int lun)
801 {
802 struct scsipi_channel *chan = sc->sc_channel;
803 struct scsipi_periph *periph;
804 struct scsipi_inquiry_data inqbuf;
805 const struct scsi_quirk_inquiry_pattern *finger;
806 int checkdtype, priority, docontinue, quirks;
807 struct scsipibus_attach_args sa;
808 cfdata_t cf;
809 int locs[SCSIBUSCF_NLOCS];
810
811 /*
812 * Assume no more luns to search after this one.
813 * If we successfully get Inquiry data and after
814 * merging quirks we find we can probe for more
815 * luns, we will.
816 */
817 docontinue = 0;
818
819 /* Skip this slot if it is already attached. */
820 if (scsipi_lookup_periph(chan, target, lun) != NULL)
821 return (docontinue);
822
823 periph = scsipi_alloc_periph(M_NOWAIT);
824 if (periph == NULL) {
825 #ifdef DIAGNOSTIC
826 aprint_error_dev(sc->sc_dev,
827 "cannot allocate periph for target %d lun %d\n",
828 target, lun);
829 #endif
830 return (ENOMEM);
831 }
832 periph->periph_channel = chan;
833 periph->periph_switch = &scsi_probe_dev;
834
835 periph->periph_target = target;
836 periph->periph_lun = lun;
837 periph->periph_quirks = chan->chan_defquirks;
838
839 #ifdef SCSIPI_DEBUG
840 if (SCSIPI_DEBUG_TYPE == SCSIPI_BUSTYPE_SCSI &&
841 SCSIPI_DEBUG_TARGET == target &&
842 SCSIPI_DEBUG_LUN == lun)
843 periph->periph_dbflags |= SCSIPI_DEBUG_FLAGS;
844 #endif
845
846 /*
847 * Ask the device what it is
848 */
849
850 #ifdef SCSI_2_DEF
851 /* some devices need to be told to go to SCSI2 */
852 /* However some just explode if you tell them this.. leave it out */
853 scsi_change_def(periph, XS_CTL_DISCOVERY | XS_CTL_SILENT);
854 #endif /* SCSI_2_DEF */
855
856 /* Now go ask the device all about itself. */
857 memset(&inqbuf, 0, sizeof(inqbuf));
858 {
859 u_int8_t *extension = &inqbuf.flags1;
860 int len = 0;
861 while (len < 3)
862 extension[len++] = '\0';
863 while (len < 3 + 28)
864 extension[len++] = ' ';
865 while (len < 3 + 28 + 20)
866 extension[len++] = '\0';
867 while (len < 3 + 28 + 20 + 1)
868 extension[len++] = '\0';
869 while (len < 3 + 28 + 20 + 1 + 1)
870 extension[len++] = '\0';
871 while (len < 3 + 28 + 20 + 1 + 1 + (8*2))
872 extension[len++] = ' ';
873 }
874 if (scsipi_inquire(periph, &inqbuf, XS_CTL_DISCOVERY | XS_CTL_SILENT))
875 goto bad;
876
877 periph->periph_type = inqbuf.device & SID_TYPE;
878 if (inqbuf.dev_qual2 & SID_REMOVABLE)
879 periph->periph_flags |= PERIPH_REMOVABLE;
880 periph->periph_version = inqbuf.version & SID_ANSII;
881
882 /*
883 * Any device qualifier that has the top bit set (qualifier&4 != 0)
884 * is vendor specific and won't match in this switch.
885 * All we do here is throw out bad/negative responses.
886 */
887 checkdtype = 0;
888 switch (inqbuf.device & SID_QUAL) {
889 case SID_QUAL_LU_PRESENT:
890 checkdtype = 1;
891 break;
892
893 case SID_QUAL_LU_NOTPRESENT:
894 case SID_QUAL_reserved:
895 case SID_QUAL_LU_NOT_SUPP:
896 goto bad;
897
898 default:
899 break;
900 }
901
902 /* Let the adapter driver handle the device separatley if it wants. */
903 if (chan->chan_adapter->adapt_accesschk != NULL &&
904 (*chan->chan_adapter->adapt_accesschk)(periph, &sa.sa_inqbuf))
905 goto bad;
906
907 if (checkdtype) {
908 switch (periph->periph_type) {
909 case T_DIRECT:
910 case T_SEQUENTIAL:
911 case T_PRINTER:
912 case T_PROCESSOR:
913 case T_WORM:
914 case T_CDROM:
915 case T_SCANNER:
916 case T_OPTICAL:
917 case T_CHANGER:
918 case T_COMM:
919 case T_IT8_1:
920 case T_IT8_2:
921 case T_STORARRAY:
922 case T_ENCLOSURE:
923 case T_SIMPLE_DIRECT:
924 case T_OPTIC_CARD_RW:
925 case T_OBJECT_STORED:
926 default:
927 break;
928 case T_NODEVICE:
929 goto bad;
930 }
931 }
932
933 sa.sa_periph = periph;
934 sa.sa_inqbuf.type = inqbuf.device;
935 sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
936 T_REMOV : T_FIXED;
937 sa.sa_inqbuf.vendor = inqbuf.vendor;
938 sa.sa_inqbuf.product = inqbuf.product;
939 sa.sa_inqbuf.revision = inqbuf.revision;
940 sa.scsipi_info.scsi_version = inqbuf.version;
941 sa.sa_inqptr = &inqbuf;
942
943 finger = scsipi_inqmatch(
944 &sa.sa_inqbuf, scsi_quirk_patterns,
945 sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]),
946 sizeof(scsi_quirk_patterns[0]), &priority);
947
948 if (finger != NULL)
949 quirks = finger->quirks;
950 else
951 quirks = 0;
952
953 /*
954 * Determine the operating mode capabilities of the device.
955 */
956 if (periph->periph_version >= 2) {
957 if ((inqbuf.flags3 & SID_CmdQue) != 0 &&
958 (quirks & PQUIRK_NOTAG) == 0)
959 periph->periph_cap |= PERIPH_CAP_TQING;
960 if ((inqbuf.flags3 & SID_Linked) != 0)
961 periph->periph_cap |= PERIPH_CAP_LINKCMDS;
962 if ((inqbuf.flags3 & SID_Sync) != 0 &&
963 (quirks & PQUIRK_NOSYNC) == 0)
964 periph->periph_cap |= PERIPH_CAP_SYNC;
965 if ((inqbuf.flags3 & SID_WBus16) != 0 &&
966 (quirks & PQUIRK_NOWIDE) == 0)
967 periph->periph_cap |= PERIPH_CAP_WIDE16;
968 if ((inqbuf.flags3 & SID_WBus32) != 0 &&
969 (quirks & PQUIRK_NOWIDE) == 0)
970 periph->periph_cap |= PERIPH_CAP_WIDE32;
971 if ((inqbuf.flags3 & SID_SftRe) != 0)
972 periph->periph_cap |= PERIPH_CAP_SFTRESET;
973 if ((inqbuf.flags3 & SID_RelAdr) != 0)
974 periph->periph_cap |= PERIPH_CAP_RELADR;
975 /* SPC-2 */
976 if (periph->periph_version >= 3 &&
977 !(quirks & PQUIRK_CAP_NODT)){
978 /*
979 * Report ST clocking though CAP_WIDExx/CAP_SYNC.
980 * If the device only supports DT, clear these
981 * flags (DT implies SYNC and WIDE)
982 */
983 switch (inqbuf.flags4 & SID_Clocking) {
984 case SID_CLOCKING_DT_ONLY:
985 periph->periph_cap &=
986 ~(PERIPH_CAP_SYNC |
987 PERIPH_CAP_WIDE16 |
988 PERIPH_CAP_WIDE32);
989 /* FALLTHROUGH */
990 case SID_CLOCKING_SD_DT:
991 periph->periph_cap |= PERIPH_CAP_DT;
992 break;
993 default: /* ST only or invalid */
994 /* nothing to do */
995 break;
996 }
997 }
998 if (periph->periph_version >= 3) {
999 if (inqbuf.flags4 & SID_IUS)
1000 periph->periph_cap |= PERIPH_CAP_IUS;
1001 if (inqbuf.flags4 & SID_QAS)
1002 periph->periph_cap |= PERIPH_CAP_QAS;
1003 }
1004 }
1005 if (quirks & PQUIRK_CAP_SYNC)
1006 periph->periph_cap |= PERIPH_CAP_SYNC;
1007 if (quirks & PQUIRK_CAP_WIDE16)
1008 periph->periph_cap |= PERIPH_CAP_WIDE16;
1009
1010 /*
1011 * Now apply any quirks from the table.
1012 */
1013 periph->periph_quirks |= quirks;
1014 if (periph->periph_version == 0 &&
1015 (periph->periph_quirks & PQUIRK_FORCELUNS) == 0)
1016 periph->periph_quirks |= PQUIRK_NOLUNS;
1017
1018 if ((periph->periph_quirks & PQUIRK_NOLUNS) == 0)
1019 docontinue = 1;
1020
1021 locs[SCSIBUSCF_TARGET] = target;
1022 locs[SCSIBUSCF_LUN] = lun;
1023
1024 if ((cf = config_search_loc(config_stdsubmatch, sc->sc_dev,
1025 "scsibus", locs, &sa)) != NULL) {
1026 scsipi_insert_periph(chan, periph);
1027 /*
1028 * XXX Can't assign periph_dev here, because we'll
1029 * XXX need it before config_attach() returns. Must
1030 * XXX assign it in periph driver.
1031 */
1032 config_attach_loc(sc->sc_dev, cf, locs, &sa,
1033 scsibusprint);
1034 } else {
1035 scsibusprint(&sa, device_xname(sc->sc_dev));
1036 aprint_normal(" not configured\n");
1037 goto bad;
1038 }
1039
1040 return (docontinue);
1041
1042 bad:
1043 scsipi_free_periph(periph);
1044 return (docontinue);
1045 }
1046
1047 /****** Entry points for user control of the SCSI bus. ******/
1048
1049 static int
1050 scsibusopen(dev_t dev, int flag, int fmt,
1051 struct lwp *l)
1052 {
1053 struct scsibus_softc *sc;
1054 int error, unit = minor(dev);
1055
1056 sc = device_lookup_private(&scsibus_cd, unit);
1057 if (sc == NULL)
1058 return (ENXIO);
1059
1060 if (sc->sc_flags & SCSIBUSF_OPEN)
1061 return (EBUSY);
1062
1063 if ((error = scsipi_adapter_addref(sc->sc_channel->chan_adapter)) != 0)
1064 return (error);
1065
1066 sc->sc_flags |= SCSIBUSF_OPEN;
1067
1068 return (0);
1069 }
1070
1071 static int
1072 scsibusclose(dev_t dev, int flag, int fmt,
1073 struct lwp *l)
1074 {
1075 struct scsibus_softc *sc;
1076
1077 sc = device_lookup_private(&scsibus_cd, minor(dev));
1078 scsipi_adapter_delref(sc->sc_channel->chan_adapter);
1079
1080 sc->sc_flags &= ~SCSIBUSF_OPEN;
1081
1082 return (0);
1083 }
1084
1085 static int
1086 scsibusioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
1087 {
1088 struct scsibus_softc *sc;
1089 struct scsipi_channel *chan;
1090 int error;
1091
1092 sc = device_lookup_private(&scsibus_cd, minor(dev));
1093 chan = sc->sc_channel;
1094
1095 /*
1096 * Enforce write permission for ioctls that change the
1097 * state of the bus. Host adapter specific ioctls must
1098 * be checked by the adapter driver.
1099 */
1100 switch (cmd) {
1101 case SCBUSIOSCAN:
1102 case SCBUSIODETACH:
1103 case SCBUSIORESET:
1104 if ((flag & FWRITE) == 0)
1105 return (EBADF);
1106 }
1107
1108 switch (cmd) {
1109 case SCBUSIOSCAN:
1110 {
1111 struct scbusioscan_args *a =
1112 (struct scbusioscan_args *)addr;
1113
1114 error = scsi_probe_bus(sc, a->sa_target, a->sa_lun);
1115 break;
1116 }
1117
1118 case SCBUSIODETACH:
1119 {
1120 struct scbusiodetach_args *a =
1121 (struct scbusiodetach_args *)addr;
1122
1123 error = scsipi_target_detach(chan, a->sa_target, a->sa_lun, 0);
1124 break;
1125 }
1126
1127
1128 case SCBUSIORESET:
1129 /* FALLTHROUGH */
1130 default:
1131 error = scsipi_adapter_ioctl(chan, cmd, addr, flag, l->l_proc);
1132 break;
1133 }
1134
1135 return (error);
1136 }
1137