Annotation of src/sys/dev/scsipi/scsiconf.c, Revision 1.9.3.5
1.1 cgd 1: /*
2: * Written by Julian Elischer (julian@tfs.com)
1.5 deraadt 3: * for TRW Financial Systems for use under the MACH(2.5) operating system.
1.1 cgd 4: *
5: * TRW Financial Systems, in accordance with their agreement with Carnegie
6: * Mellon University, makes this software available to CMU to distribute
7: * or use in any manner that they see fit as long as this message is kept with
8: * the software. For this reason TFS also grants any other persons or
9: * organisations permission to use or modify this software.
10: *
11: * TFS supplies this software to be publicly redistributed
12: * on the understanding that TFS is not responsible for the correct
13: * functioning of this software in any circumstances.
1.7 cgd 14: *
1.9.3.1 mycroft 15: * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
16: *
1.9.3.5 ! mycroft 17: * $Id: scsiconf.c,v 1.9.3.4 1993/11/24 20:33:44 mycroft Exp $
1.1 cgd 18: */
19:
1.9.3.1 mycroft 20: #include <sys/types.h>
21: #include <sys/param.h>
22: #include <sys/systm.h>
23: #include <sys/malloc.h>
24: #include <sys/device.h>
1.1 cgd 25:
26: #include "st.h"
27: #include "sd.h"
28: #include "ch.h"
29: #include "cd.h"
1.9.3.1 mycroft 30: #include "uk.h"
31: #include "su.h"
32:
33: #include <scsi/scsi_all.h>
34: #include <scsi/scsiconf.h>
35:
36: #ifdef TFS
37: #include "bll.h"
38: #include "cals.h"
39: #include "kil.h"
40: #include "scan.h"
41: #else /* TFS */
1.1 cgd 42: #define NBLL 0
43: #define NCALS 0
44: #define NKIL 0
1.9.3.1 mycroft 45: #define NSCAN 0
46: #endif /* TFS */
1.1 cgd 47:
48: #if NSD > 0
1.9.3.1 mycroft 49: extern sdattach();
50: #endif /* NSD */
1.1 cgd 51: #if NST > 0
1.9.3.1 mycroft 52: extern stattach();
53: #endif /* NST */
1.1 cgd 54: #if NCH > 0
1.9.3.1 mycroft 55: extern chattach();
56: #endif /* NCH */
1.1 cgd 57: #if NCD > 0
1.9.3.1 mycroft 58: extern cdattach();
59: #endif /* NCD */
1.1 cgd 60: #if NBLL > 0
1.9.3.1 mycroft 61: extern bllattach();
62: #endif /* NBLL */
1.1 cgd 63: #if NCALS > 0
1.9.3.1 mycroft 64: extern calsattach();
65: #endif /* NCALS */
1.1 cgd 66: #if NKIL > 0
1.9.3.1 mycroft 67: extern kil_attach();
68: #endif /* NKIL */
69: #if NUK > 0
70: extern ukattach();
71: #endif /* NUK */
72:
73: /*
74: * The structure of known drivers for autoconfiguration
75: */
76: struct scsidevs {
77: u_int32 type;
78: boolean removable;
79: char *manufacturer;
80: char *model;
81: char *version;
1.9.3.2 mycroft 82: int(*attach_rtn) ();
1.9.3.1 mycroft 83: char *devname;
84: char flags; /* 1 show my comparisons during boot(debug) */
85: };
86:
87: #define SC_SHOWME 0x01
88: #define SC_ONE_LU 0x00
89: #define SC_MORE_LUS 0x02
90:
1.9.3.3 mycroft 91: #if NUK > 0
1.9.3.1 mycroft 92: static struct scsidevs unknowndev = {
93: -1, 0, "standard", "any"
94: ,"any", ukattach, "uk", SC_MORE_LUS
95: };
96: #endif /*NUK*/
97: static struct scsidevs knowndevs[] =
98: {
1.1 cgd 99: #if NSD > 0
1.2 deraadt 100: {
1.9.3.1 mycroft 101: T_DIRECT, T_FIXED, "standard", "any"
102: ,"any", sdattach, "sd", SC_ONE_LU
1.2 deraadt 103: },
104: {
1.9.3.1 mycroft 105: T_DIRECT, T_FIXED, "MAXTOR ", "XT-4170S "
106: ,"B5A ", sdattach, "mx1", SC_ONE_LU
1.2 deraadt 107: },
1.9.3.1 mycroft 108: #endif /* NSD */
109: #if NST > 0
1.2 deraadt 110: {
1.9.3.1 mycroft 111: T_SEQUENTIAL, T_REMOV, "standard", "any"
112: ,"any", stattach, "st", SC_ONE_LU
1.2 deraadt 113: },
1.9.3.1 mycroft 114: #endif /* NST */
1.1 cgd 115: #if NCALS > 0
1.2 deraadt 116: {
1.9.3.1 mycroft 117: T_PROCESSOR, T_FIXED, "standard", "any"
118: ,"any", calsattach, "cals", SC_MORE_LUS
119: },
120: #endif /* NCALS */
1.1 cgd 121: #if NCH > 0
1.2 deraadt 122: {
1.9.3.1 mycroft 123: T_CHANGER, T_REMOV, "standard", "any"
124: ,"any", chattach, "ch", SC_ONE_LU
1.2 deraadt 125: },
1.9.3.1 mycroft 126: #endif /* NCH */
127: #if NCD > 0
128: #ifndef UKTEST /* make cdroms unrecognised to test the uk driver */
129: {
130: T_READONLY, T_REMOV, "SONY ", "CD-ROM CDU-8012 "
131: ,"3.1a", cdattach, "cd", SC_ONE_LU
132: },
133: {
134: T_READONLY, T_REMOV, "PIONEER ", "CD-ROM DRM-600 "
135: ,"any", cdattach, "cd", SC_MORE_LUS
136: },
137: #endif
138: #endif /* NCD */
1.1 cgd 139: #if NBLL > 0
1.2 deraadt 140: {
1.9.3.1 mycroft 141: T_PROCESSOR, T_FIXED, "AEG ", "READER "
142: ,"V1.0", bllattach, "bll", SC_MORE_LUS
1.2 deraadt 143: },
1.9.3.1 mycroft 144: #endif /* NBLL */
1.1 cgd 145: #if NKIL > 0
1.2 deraadt 146: {
1.9.3.1 mycroft 147: T_SCANNER, T_FIXED, "KODAK ", "IL Scanner 900 "
148: ,"any", kil_attach, "kil", SC_ONE_LU
1.2 deraadt 149: },
1.9.3.1 mycroft 150: #endif /* NKIL */
151:
152: {
153: 0
154: }
155: };
156:
157: /*
158: * Declarations
159: */
160: struct scsidevs *scsi_probedev();
161: struct scsidevs *selectdev();
1.9.3.2 mycroft 162: int scsi_probe_bus __P((int bus, int targ, int lun));
1.9.3.1 mycroft 163:
164: struct scsi_device probe_switch =
165: {
166: NULL,
167: NULL,
168: NULL,
169: NULL,
170: "probe",
171: 0,
1.2 deraadt 172: };
173:
1.9.3.1 mycroft 174: int scsibusmatch __P((struct device *, struct cfdata *, void *));
175: void scsibusattach __P((struct device *, struct device *, void *));
1.1 cgd 176:
1.9.3.1 mycroft 177: struct cfdriver scsibuscd =
178: {
179: NULL,
180: "scsibus",
181: scsibusmatch,
182: scsibusattach,
183: DV_DULL,
184: sizeof(struct scsibus_data)
185: };
186:
187: int
188: scsibusmatch(parent, cf, aux)
189: struct device *parent;
190: struct cfdata *cf;
191: void *aux;
192: {
193:
194: return 1;
195: }
196:
197: /*
198: * The routine called by the adapter boards to get all their
199: * devices configured in.
200: */
201: void
202: scsibusattach(parent, self, aux)
203: struct device *parent, *self;
204: void *aux;
205: {
206: struct scsibus_data *sb = (struct scsibus_data *)self;
207: struct scsi_link *sc_link_proto = aux;
208:
209: sc_link_proto->scsibus = sb->sc_dev.dv_unit;
210: sb->adapter_link = sc_link_proto;
211: printf("\n");
212:
213: #if defined(SCSI_DELAY) && SCSI_DELAY > 2
214: printf("%s: waiting for scsi devices to settle\n",
215: sb->sc_dev.dv_xname);
216: #else /* SCSI_DELAY > 2 */
217: #undef SCSI_DELAY
218: #define SCSI_DELAY 2
219: #endif /* SCSI_DELAY */
220: DELAY(1000000 * SCSI_DELAY);
221:
222: scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1);
223: }
224:
225: /*
226: * Probe the requested scsi bus. It must be already set up.
227: * -1 requests all set up scsi busses.
228: * targ and lun optionally narrow the search if not -1
229: */
1.9.3.2 mycroft 230: int
1.9.3.1 mycroft 231: scsi_probe_busses(bus, targ, lun)
232: int bus, targ, lun;
233: {
1.9.3.2 mycroft 234:
1.9.3.1 mycroft 235: if (bus == -1) {
236: for (bus = 0; bus < scsibuscd.cd_ndevs; bus++)
237: if (scsibuscd.cd_devs[bus])
238: scsi_probe_bus(bus, targ, lun);
239: return 0;
240: } else {
241: return scsi_probe_bus(bus, targ, lun);
242: }
243: }
244:
245: /*
246: * Probe the requested scsi bus. It must be already set up.
247: * targ and lun optionally narrow the search if not -1
248: */
1.9.3.2 mycroft 249: int
1.9.3.1 mycroft 250: scsi_probe_bus(bus, targ, lun)
251: int bus, targ, lun;
252: {
253: struct scsibus_data *scsi;
254: int maxtarg, mintarg, maxlun, minlun;
255: struct scsi_link *sc_link_proto;
256: u_int8 scsi_addr ;
257: struct scsidevs *bestmatch = NULL;
258: struct scsi_link *sc_link = NULL;
259: boolean maybe_more;
260:
261: if (bus < 0 || bus >= scsibuscd.cd_ndevs)
262: return ENXIO;
263: scsi = scsibuscd.cd_devs[bus];
264: if (!scsi)
265: return ENXIO;
266:
267: sc_link_proto = scsi->adapter_link;
268: scsi_addr = sc_link_proto->adapter_targ;
269:
270: if (targ == -1) {
271: maxtarg = 7;
272: mintarg = 0;
273: } else {
274: if (targ < 0 || targ > 7)
275: return EINVAL;
276: maxtarg = mintarg = targ;
277: }
278:
1.9.3.2 mycroft 279: if (lun == -1) {
1.9.3.1 mycroft 280: maxlun = 7;
281: minlun = 0;
282: } else {
283: if (lun < 0 || lun > 7)
284: return EINVAL;
285: maxlun = minlun = lun;
286: }
287:
288: for (targ = mintarg; targ <= maxtarg; targ++) {
289: maybe_more = 0; /* by default only check 1 lun */
1.9.3.3 mycroft 290: #if 0 /* XXXX */
1.9.3.1 mycroft 291: if (targ == scsi_addr)
292: continue;
293: #endif
294: for (lun = minlun; lun <= maxlun; lun++) {
295: /*
296: * The spot appears to already have something
297: * linked in, skip past it. Must be doing a 'reprobe'
298: */
299: if (scsi->sc_link[targ][lun]) {
300: /* don't do this one, but check other luns */
301: maybe_more = 1;
302: continue;
303: }
304: /*
305: * If we presently don't have a link block
306: * then allocate one to use while probing
307: */
308: if (!sc_link) {
309: sc_link = malloc(sizeof(*sc_link), M_TEMP, M_NOWAIT);
310: *sc_link = *sc_link_proto; /* struct copy */
311: sc_link->opennings = 1;
312: sc_link->device = &probe_switch;
313: }
314: sc_link->target = targ;
315: sc_link->lun = lun;
316: bestmatch = scsi_probedev(sc_link, &maybe_more);
1.9.3.4 mycroft 317: /*
318: * We already know what the device is. We use a
319: * special matching routine which insists that the
320: * cfdata is of the right type rather than putting
321: * more intelligence in individual match routines for
322: * each high-level driver. We must have
323: * scsi_targmatch() do all of the comparisons, or we
324: * could get stuck in an infinite loop trying the same
325: * device repeatedly. We use the `fordriver' field of
326: * the scsi_link for now, rather than inventing a new
327: * structure just for the config_search().
328: */
329: if (bestmatch) {
330: sc_link->fordriver = bestmatch->attach_rtn;
331: if (config_found((struct device *)scsi,
332: sc_link, NULL)) {
333: scsi->sc_link[targ][lun] = sc_link;
334: sc_link = NULL; /* it's been used */
335: } else
336: printf("No matching config entry.\n");
1.9.3.5 ! mycroft 337: }
1.9.3.4 mycroft 338: if (!maybe_more)/* nothing suggests we'll find more */
1.9.3.1 mycroft 339: break; /* nothing here, skip to next targ */
340: /* otherwise something says we should look further */
341: }
342: }
1.9.3.2 mycroft 343: if (sc_link)
1.9.3.1 mycroft 344: free(sc_link, M_TEMP);
345: return 0;
346: }
347:
1.9.3.3 mycroft 348: int
349: scsi_targmatch(parent, cf, aux)
350: struct device *parent;
351: struct cfdata *cf;
352: void *aux;
353: {
354: struct scsi_link *sc_link = aux;
355: void (*attach_rtn) () = sc_link->fordriver;
356:
357: if (cf->cf_driver->cd_attach != attach_rtn)
358: return 0;
359: if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target)
360: return 0;
361: if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun)
362: return 0;
363:
364: return 1;
365: }
366:
1.9.3.1 mycroft 367: /*
368: * given a target and lu, ask the device what
369: * it is, and find the correct driver table
370: * entry.
371: */
1.2 deraadt 372: struct scsidevs *
1.9.3.1 mycroft 373: scsi_probedev(sc_link, maybe_more)
374: boolean *maybe_more;
375: struct scsi_link *sc_link;
1.1 cgd 376: {
1.9.3.1 mycroft 377: u_int8 target = sc_link->target;
378: u_int8 lun = sc_link->lun;
379: struct scsi_adapter *scsi_adapter = sc_link->adapter;
380: struct scsidevs *bestmatch = NULL;
381: char *dtype = NULL, *desc;
382: char *qtype;
1.2 deraadt 383: static struct scsi_inquiry_data inqbuf;
1.9.3.1 mycroft 384: u_int32 len, qualifier, type;
385: boolean remov;
386: char manu[32];
387: char model[32];
388: char version[32];
389:
390: bzero(&inqbuf, sizeof(inqbuf));
391: /*
392: * Ask the device what it is
393: */
394: #ifdef SCSIDEBUG
395: if (target == DEBUGTARG && lu == DEBUGLUN)
396: sc_link->flags |= DEBUGLEVEL;
397: else
398: sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2 | SDEV_DB3 | SDEV_DB4);
399: #endif /* SCSIDEBUG */
400: /* catch unit attn */
401: scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
402: #ifdef DOUBTFULL
403: switch (scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT)) {
404: case 0: /* said it WAS ready */
405: case EBUSY: /* replied 'NOT READY' but WAS present, continue */
406: case ENXIO:
407: break;
408: case EIO: /* device timed out */
409: case EINVAL: /* Lun not supported */
410: default:
411: return NULL;
1.2 deraadt 412:
1.9.3.1 mycroft 413: }
414: #endif /*DOUBTFULL*/
415: #ifdef SCSI_2_DEF
416: /* some devices need to be told to go to SCSI2 */
417: /* However some just explode if you tell them this.. leave it out */
418: scsi_change_def(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
419: #endif /*SCSI_2_DEF */
420:
421: /* Now go ask the device all about itself */
422: if (scsi_inquire(sc_link, &inqbuf, SCSI_NOSLEEP | SCSI_NOMASK) != 0)
423: return NULL;
424:
425: /*
426: * note what BASIC type of device it is
427: */
428: type = inqbuf.device & SID_TYPE;
429: qualifier = inqbuf.device & SID_QUAL;
430: remov = inqbuf.dev_qual2 & SID_REMOVABLE;
431:
432: /*
433: * Any device qualifier that has the top bit set (qualifier&4 != 0)
434: * is vendor specific and won't match in this switch.
435: */
436: switch (qualifier) {
437: case SID_QUAL_LU_OK:
1.2 deraadt 438: qtype = "";
439: break;
1.9.3.1 mycroft 440:
441: case SID_QUAL_LU_OFFLINE:
442: qtype = ", Unit not Connected!";
1.2 deraadt 443: break;
1.9.3.1 mycroft 444:
445: case SID_QUAL_RSVD:
446: qtype = ", Reserved Peripheral Qualifier!";
447: *maybe_more = 1;
448: return NULL;
1.2 deraadt 449: break;
1.9.3.1 mycroft 450:
451: case SID_QUAL_BAD_LU:
452: /*
453: * Check for a non-existent unit. If the device is returning
454: * this much, then we must set the flag that has
455: * the searchers keep looking on other luns.
456: */
1.2 deraadt 457: qtype = ", The Target can't support this Unit!";
1.9.3.1 mycroft 458: *maybe_more = 1;
459: return NULL;
460:
1.2 deraadt 461: default:
462: dtype = "vendor specific";
463: qtype = "";
1.9.3.1 mycroft 464: *maybe_more = 1;
1.2 deraadt 465: break;
466: }
1.9.3.1 mycroft 467: if (dtype == 0) {
468: switch (type) {
1.2 deraadt 469: case T_DIRECT:
470: dtype = "direct";
471: break;
472: case T_SEQUENTIAL:
1.9.3.1 mycroft 473: dtype = "sequential";
1.2 deraadt 474: break;
475: case T_PRINTER:
1.9.3.1 mycroft 476: dtype = "printer";
1.2 deraadt 477: break;
478: case T_PROCESSOR:
1.9.3.1 mycroft 479: dtype = "processor";
1.2 deraadt 480: break;
481: case T_READONLY:
1.9.3.1 mycroft 482: dtype = "readonly";
1.2 deraadt 483: break;
484: case T_WORM:
485: dtype = "worm";
486: break;
487: case T_SCANNER:
1.9.3.1 mycroft 488: dtype = "scanner";
1.2 deraadt 489: break;
490: case T_OPTICAL:
1.9.3.1 mycroft 491: dtype = "optical";
1.2 deraadt 492: break;
493: case T_CHANGER:
494: dtype = "changer";
495: break;
496: case T_COMM:
1.9.3.1 mycroft 497: dtype = "communication";
1.2 deraadt 498: break;
1.9.3.1 mycroft 499: case T_NODEVICE:
500: *maybe_more = 1;
501: return NULL;
1.2 deraadt 502: default:
1.9.3.1 mycroft 503: dtype = NULL;
1.2 deraadt 504: break;
1.1 cgd 505: }
506: }
1.2 deraadt 507:
1.9.3.1 mycroft 508: /*
509: * Then if it's advanced enough, more detailed
510: * information
511: */
512: if ((inqbuf.version & SID_ANSII) > 0) {
513: if ((len = inqbuf.additional_length
514: + ((char *) inqbuf.unused
515: - (char *) &inqbuf))
516: > (sizeof(struct scsi_inquiry_data) - 1))
517: len = sizeof(struct scsi_inquiry_data) - 1;
1.2 deraadt 518: desc = inqbuf.vendor;
1.9.3.1 mycroft 519: desc[len - (desc - (char *) &inqbuf)] = 0;
520: strncpy(manu, inqbuf.vendor, 8);
521: manu[8] = 0;
522: strncpy(model, inqbuf.product, 16);
523: model[16] = 0;
524: strncpy(version, inqbuf.revision, 4);
525: version[4] = 0;
526: } else
527: /*
528: * If not advanced enough, use default values
529: */
530: {
1.2 deraadt 531: desc = "early protocol device";
1.9.3.1 mycroft 532: strncpy(manu, "unknown", 8);
533: strncpy(model, "unknown", 16);
534: strncpy(version, "????", 4);
1.1 cgd 535: }
1.9.3.1 mycroft 536: printf("%s targ %d lun %d: <%s%s%s> SCSI%d ",
537: ((struct device *)sc_link->adapter_softc)->dv_xname,
538: target, lun, manu, model, version,
539: inqbuf.version & SID_ANSII);
540: if (dtype)
541: printf("%s", dtype);
1.9 deraadt 542: else
1.9.3.1 mycroft 543: printf("type %d", type);
544: printf(" %s\n", remov ? "removable" : "fixed");
545: if (qtype[0])
546: printf("%s targ %d lun %d: qualifier %d(%s)\n",
547: ((struct device *)sc_link->adapter_softc)->dv_xname,
548: target, lun, qualifier, qtype);
549:
550: /*
551: * Try make as good a match as possible with
552: * available sub drivers
553: */
554: bestmatch = selectdev(qualifier, type, remov ? T_REMOV : T_FIXED,
555: manu, model, version);
556: if (bestmatch && bestmatch->flags & SC_MORE_LUS)
557: *maybe_more = 1;
558: return bestmatch;
1.1 cgd 559: }
1.9.3.3 mycroft 560:
1.2 deraadt 561: /*
562: * Try make as good a match as possible with
1.9.3.1 mycroft 563: * available sub drivers
1.2 deraadt 564: */
565: struct scsidevs *
1.9.3.1 mycroft 566: selectdev(qualifier, type, remov, manu, model, rev)
567: u_int32 qualifier, type;
568: boolean remov;
569: char *manu, *model, *rev;
1.2 deraadt 570: {
1.9.3.1 mycroft 571: u_int32 numents = (sizeof(knowndevs) / sizeof(struct scsidevs)) - 1;
572: u_int32 count = 0;
573: u_int32 bestmatches = 0;
574: struct scsidevs *bestmatch = (struct scsidevs *) 0;
575: struct scsidevs *thisentry = knowndevs;
576:
577: type |= qualifier; /* why? */
578:
579: thisentry--;
580: while (count++ < numents) {
581: thisentry++;
582: if (type != thisentry->type)
1.2 deraadt 583: continue;
1.9.3.1 mycroft 584: if (bestmatches < 1) {
585: bestmatches = 1;
586: bestmatch = thisentry;
1.1 cgd 587: }
1.9.3.1 mycroft 588: if (remov != thisentry->removable)
1.1 cgd 589: continue;
1.9.3.1 mycroft 590: if (bestmatches < 2) {
591: bestmatches = 2;
592: bestmatch = thisentry;
593: }
594: if (thisentry->flags & SC_SHOWME)
595: printf("\n%s-\n%s-", thisentry->manufacturer, manu);
596: if (strcmp(thisentry->manufacturer, manu))
1.1 cgd 597: continue;
1.9.3.1 mycroft 598: if (bestmatches < 3) {
599: bestmatches = 3;
600: bestmatch = thisentry;
601: }
602: if (thisentry->flags & SC_SHOWME)
603: printf("\n%s-\n%s-", thisentry->model, model);
604: if (strcmp(thisentry->model, model))
1.1 cgd 605: continue;
1.9.3.1 mycroft 606: if (bestmatches < 4) {
607: bestmatches = 4;
608: bestmatch = thisentry;
609: }
610: if (thisentry->flags & SC_SHOWME)
611: printf("\n%s-\n%s-", thisentry->version, rev);
612: if (strcmp(thisentry->version, rev))
1.1 cgd 613: continue;
1.9.3.1 mycroft 614: if (bestmatches < 5) {
615: bestmatches = 5;
616: bestmatch = thisentry;
1.1 cgd 617: break;
618: }
619: }
1.9.3.1 mycroft 620: #if NUK > 0
1.9.3.4 mycroft 621: if (!bestmatch)
1.9.3.1 mycroft 622: bestmatch = &unknowndev;
623: #endif
1.9.3.5 ! mycroft 624: if (!bestmatch)
! 625: printf("No matching driver.\n");
1.9.3.1 mycroft 626: return bestmatch;
1.1 cgd 627: }
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