Commit | Line | Data |
---|---|---|
15637ed4 | 1 | /* |
78ed81a3 | 2 | * Written by Julian Elischer (julian@dialix.oz.au) |
15637ed4 RG |
3 | * for TRW Financial Systems for use under the MACH(2.5) operating system. |
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. | |
14 | * | |
78ed81a3 | 15 | * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992 |
15637ed4 | 16 | * |
78ed81a3 | 17 | * $Id: sd.c,v 1.9 1993/09/20 06:27:04 rgrimes Exp $ |
15637ed4 RG |
18 | */ |
19 | ||
20 | #define SPLSD splbio | |
21 | #define ESUCCESS 0 | |
22 | #include <sd.h> | |
23 | #include <sys/types.h> | |
24 | #include <sys/param.h> | |
25 | #include <sys/dkbad.h> | |
26 | #include <sys/systm.h> | |
27 | #include <sys/conf.h> | |
28 | #include <sys/file.h> | |
29 | #include <sys/stat.h> | |
30 | #include <sys/ioctl.h> | |
31 | #include <sys/buf.h> | |
32 | #include <sys/uio.h> | |
33 | #include <sys/malloc.h> | |
34 | #include <sys/errno.h> | |
35 | #include <sys/disklabel.h> | |
36 | #include <scsi/scsi_all.h> | |
37 | #include <scsi/scsi_disk.h> | |
38 | #include <scsi/scsiconf.h> | |
39 | ||
40 | long int sdstrats,sdqueues; | |
41 | ||
42 | ||
43 | #include <ddb.h> | |
44 | #if NDDB > 0 | |
45 | int Debugger(); | |
46 | #else NDDB > 0 | |
47 | #define Debugger() | |
48 | #endif NDDB > 0 | |
49 | ||
50 | ||
51 | #define PAGESIZ 4096 | |
52 | #define SECSIZE 512 | |
53 | #define PDLOCATION 29 | |
54 | #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) | |
55 | #define SDOUTSTANDING 2 | |
56 | #define SDQSIZE 4 | |
57 | #define SD_RETRIES 4 | |
58 | ||
59 | #define MAKESDDEV(maj, unit, part) (makedev(maj,((unit<<3)+part))) | |
60 | #define UNITSHIFT 3 | |
61 | #define PARTITION(z) (minor(z) & 0x07) | |
62 | #define RAW_PART 3 | |
63 | #define UNIT(z) ( (minor(z) >> UNITSHIFT) ) | |
64 | ||
65 | #define WHOLE_DISK(unit) ( (unit << UNITSHIFT) + RAW_PART ) | |
66 | ||
67 | struct buf sd_buf_queue[NSD]; | |
68 | int sd_done(); | |
69 | int sdstrategy(); | |
70 | ||
78ed81a3 | 71 | #ifdef SDDEBUG |
15637ed4 | 72 | int sd_debug = 0; |
78ed81a3 | 73 | #endif /*SDDEBUG*/ |
15637ed4 RG |
74 | |
75 | struct scsi_xfer *sd_free_xfer[NSD]; | |
76 | int sd_xfer_block_wait[NSD]; | |
77 | ||
78 | struct sd_data | |
79 | { | |
80 | int flags; | |
81 | #define SDVALID 0x02 /* PARAMS LOADED */ | |
82 | #define SDINIT 0x04 /* device has been init'd */ | |
83 | #define SDWAIT 0x08 /* device has someone waiting */ | |
84 | #define SDHAVELABEL 0x10 /* have read the label */ | |
85 | #define SDDOSPART 0x20 /* Have read the DOS partition table */ | |
86 | #define SDWRITEPROT 0x40 /* Device in readonly mode (S/W)*/ | |
87 | struct scsi_switch *sc_sw; /* address of scsi low level switch */ | |
88 | int ctlr; /* so they know which one we want */ | |
89 | int targ; /* our scsi target ID */ | |
90 | int lu; /* out scsi lu */ | |
91 | long int ad_info; /* info about the adapter */ | |
92 | int cmdscount; /* cmds allowed outstanding by board*/ | |
93 | int wlabel; /* label is writable */ | |
94 | struct disk_parms | |
95 | { | |
96 | u_char heads; /* Number of heads */ | |
97 | u_short cyls; /* Number of cylinders */ | |
98 | u_char sectors;/*dubious*/ /* Number of sectors/track */ | |
99 | u_short secsiz; /* Number of bytes/sector */ | |
100 | u_long disksize; /* total number sectors */ | |
101 | }params; | |
102 | struct disklabel disklabel; | |
103 | struct dos_partition dosparts[NDOSPART]; /* DOS view of disk */ | |
104 | int partflags[MAXPARTITIONS]; /* per partition flags */ | |
105 | #define SDOPEN 0x01 | |
106 | int openparts; /* one bit for each open partition */ | |
107 | unsigned int sd_start_of_unix; /* unix vs dos partitions */ | |
78ed81a3 | 108 | }*sd_data[NSD]; |
15637ed4 RG |
109 | |
110 | ||
111 | static int next_sd_unit = 0; | |
112 | /***********************************************************************\ | |
113 | * The routine called by the low level scsi routine when it discovers * | |
114 | * A device suitable for this driver * | |
115 | \***********************************************************************/ | |
116 | ||
117 | int sdattach(ctlr,targ,lu,scsi_switch) | |
118 | struct scsi_switch *scsi_switch; | |
119 | { | |
120 | int unit,i; | |
121 | unsigned char *tbl; | |
122 | struct sd_data *sd; | |
123 | struct disk_parms *dp; | |
124 | long int ad_info; | |
125 | struct scsi_xfer *sd_scsi_xfer; | |
126 | ||
127 | unit = next_sd_unit++; | |
78ed81a3 | 128 | #ifdef SDDEBUG |
15637ed4 | 129 | if(scsi_debug & PRINTROUTINES) printf("sdattach: "); |
78ed81a3 | 130 | #endif /*SDDEBUG*/ |
15637ed4 RG |
131 | /*******************************************************\ |
132 | * Check we have the resources for another drive * | |
133 | \*******************************************************/ | |
134 | if( unit >= NSD) | |
135 | { | |
78ed81a3 | 136 | printf("Too many scsi disks..(%d > %d) reconfigure kernel\n",(unit + 1),NSD); |
137 | return(0); | |
138 | } | |
139 | if(sd_data[unit]) | |
140 | { | |
141 | printf("sd%d: unit already has storage allocated!\n",unit); | |
15637ed4 RG |
142 | return(0); |
143 | } | |
78ed81a3 | 144 | sd = sd_data[unit] = malloc(sizeof(struct sd_data),M_DEVBUF,M_NOWAIT); |
145 | if(!sd) | |
146 | { | |
147 | printf("malloc failed in sd.c\n"); | |
148 | return(0); | |
149 | } | |
150 | bzero(sd,sizeof(struct sd_data)); | |
151 | ||
152 | dp = &(sd->params); | |
15637ed4 RG |
153 | /*******************************************************\ |
154 | * Store information needed to contact our base driver * | |
155 | \*******************************************************/ | |
156 | sd->sc_sw = scsi_switch; | |
157 | sd->ctlr = ctlr; | |
158 | sd->targ = targ; | |
159 | sd->lu = lu; | |
160 | if(sd->sc_sw->adapter_info) | |
161 | { | |
162 | sd->ad_info = ( (*(sd->sc_sw->adapter_info))(ctlr)); | |
163 | sd->cmdscount = sd->ad_info & AD_INF_MAX_CMDS; | |
164 | if(sd->cmdscount > SDOUTSTANDING) | |
165 | { | |
166 | sd->cmdscount = SDOUTSTANDING; | |
167 | } | |
168 | } | |
169 | else | |
170 | { | |
171 | sd->ad_info = 1; | |
172 | sd->cmdscount = 1; | |
173 | } | |
174 | ||
175 | i = sd->cmdscount; | |
176 | sd_scsi_xfer = (struct scsi_xfer *)malloc(sizeof(struct scsi_xfer) * i | |
177 | ,M_TEMP, M_NOWAIT); | |
178 | while(i-- ) | |
179 | { | |
180 | sd_scsi_xfer->next = sd_free_xfer[unit]; | |
181 | sd_free_xfer[unit] = sd_scsi_xfer; | |
182 | sd_scsi_xfer++; | |
183 | } | |
184 | /*******************************************************\ | |
185 | * Use the subdriver to request information regarding * | |
186 | * the drive. We cannot use interrupts yet, so the * | |
187 | * request must specify this. * | |
188 | \*******************************************************/ | |
189 | sd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK); | |
78ed81a3 | 190 | printf("sd%d: %dMB (%d total sec), %d cyl, %d head, %d sec, bytes/sec %d\n", |
15637ed4 | 191 | unit, |
78ed81a3 | 192 | dp->disksize / ((1024L * 1024L) / dp->secsiz), |
193 | dp->disksize, | |
15637ed4 RG |
194 | dp->cyls, |
195 | dp->heads, | |
196 | dp->sectors, | |
197 | dp->secsiz); | |
15637ed4 RG |
198 | sd->flags |= SDINIT; |
199 | return; | |
200 | ||
201 | } | |
202 | ||
203 | ||
204 | ||
205 | /*******************************************************\ | |
206 | * open the device. Make sure the partition info * | |
207 | * is a up-to-date as can be. * | |
208 | \*******************************************************/ | |
209 | sdopen(dev) | |
210 | { | |
211 | int errcode = 0; | |
212 | int unit, part; | |
213 | struct disk_parms disk_parms; | |
214 | struct sd_data *sd ; | |
215 | ||
216 | unit = UNIT(dev); | |
217 | part = PARTITION(dev); | |
78ed81a3 | 218 | sd = sd_data[unit]; |
219 | #ifdef SDDEBUG | |
15637ed4 RG |
220 | if(scsi_debug & (PRINTROUTINES | TRACEOPENS)) |
221 | printf("sdopen: dev=0x%x (unit %d (of %d),partition %d)\n" | |
222 | , dev, unit, NSD, part); | |
78ed81a3 | 223 | #endif /*SDDEBUG*/ |
15637ed4 RG |
224 | /*******************************************************\ |
225 | * Check the unit is legal * | |
226 | \*******************************************************/ | |
227 | if ( unit >= NSD ) | |
228 | { | |
229 | return(ENXIO); | |
230 | } | |
231 | /*******************************************************\ | |
232 | * Make sure the disk has been initialised * | |
233 | * At some point in the future, get the scsi driver * | |
234 | * to look for a new device if we are not initted * | |
235 | \*******************************************************/ | |
236 | if (! (sd->flags & SDINIT)) | |
237 | { | |
238 | return(ENXIO); | |
239 | } | |
240 | ||
241 | /*******************************************************\ | |
242 | * If it's been invalidated, and not everybody has * | |
243 | * closed it then forbid re-entry. * | |
244 | \*******************************************************/ | |
245 | if ((! (sd->flags & SDVALID)) | |
246 | && ( sd->openparts)) | |
247 | return(ENXIO); | |
248 | /*******************************************************\ | |
78ed81a3 | 249 | * "unit attention" errors should occur here if the * |
250 | * drive has been restarted or the pack changed. * | |
251 | * just ingnore the result, it's a decoy instruction * | |
252 | * The error code will act on the error though * | |
253 | * and invalidate any media information we had. * | |
15637ed4 | 254 | \*******************************************************/ |
78ed81a3 | 255 | sd_test_unit_ready(unit,0); |
15637ed4 | 256 | |
15637ed4 RG |
257 | /*******************************************************\ |
258 | * In case it is a funny one, tell it to start * | |
259 | * not needed for most hard drives (ignore failure) * | |
260 | \*******************************************************/ | |
261 | sd_start_unit(unit,SCSI_ERR_OK|SCSI_SILENT); | |
78ed81a3 | 262 | |
263 | /*******************************************************\ | |
264 | * Check that it is still responding and ok. * | |
265 | \*******************************************************/ | |
266 | if (sd_test_unit_ready(unit,0)) | |
267 | { | |
268 | #ifdef SDDEBUG | |
269 | if(scsi_debug & TRACEOPENS) printf("device not reponding\n"); | |
270 | #endif /*SDDEBUG*/ | |
271 | return(ENXIO); | |
272 | } | |
273 | #ifdef SDDEBUG | |
15637ed4 | 274 | if(scsi_debug & TRACEOPENS) |
78ed81a3 | 275 | printf("device ok\n"); |
276 | #endif /*SDDEBUG*/ | |
277 | ||
15637ed4 RG |
278 | /*******************************************************\ |
279 | * Load the physical device parameters * | |
280 | \*******************************************************/ | |
281 | sd_get_parms(unit, 0); /* sets SDVALID */ | |
78ed81a3 | 282 | if (sd->params.secsiz != SECSIZE) /* XXX One day...*/ |
15637ed4 RG |
283 | { |
284 | printf("sd%d: Can't deal with %d bytes logical blocks\n" | |
285 | ,unit, sd->params.secsiz); | |
286 | Debugger(); | |
287 | return(ENXIO); | |
288 | } | |
78ed81a3 | 289 | #ifdef SDDEBUG |
15637ed4 RG |
290 | if(scsi_debug & TRACEOPENS) |
291 | printf("Params loaded "); | |
78ed81a3 | 292 | #endif /*SDDEBUG*/ |
15637ed4 RG |
293 | /*******************************************************\ |
294 | * Load the partition info if not already loaded * | |
78ed81a3 | 295 | * Lock the pack in * |
15637ed4 | 296 | \*******************************************************/ |
78ed81a3 | 297 | sd_prevent(unit,PR_PREVENT,SCSI_ERR_OK|SCSI_SILENT); |
15637ed4 RG |
298 | if((errcode = sdgetdisklabel(unit)) && (part != RAW_PART)) |
299 | { | |
78ed81a3 | 300 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); |
15637ed4 RG |
301 | return(errcode); |
302 | } | |
78ed81a3 | 303 | #ifdef SDDEBUG |
15637ed4 RG |
304 | if(scsi_debug & TRACEOPENS) |
305 | printf("Disklabel loaded "); | |
78ed81a3 | 306 | #endif /*SDDEBUG*/ |
15637ed4 RG |
307 | /*******************************************************\ |
308 | * Check the partition is legal * | |
309 | \*******************************************************/ | |
310 | if ( part >= MAXPARTITIONS ) { | |
311 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
312 | return(ENXIO); | |
313 | } | |
78ed81a3 | 314 | #ifdef SDDEBUG |
15637ed4 RG |
315 | if(scsi_debug & TRACEOPENS) |
316 | printf("ok"); | |
78ed81a3 | 317 | #endif /*SDDEBUG*/ |
15637ed4 RG |
318 | /*******************************************************\ |
319 | * Check that the partition exists * | |
320 | \*******************************************************/ | |
321 | if (( sd->disklabel.d_partitions[part].p_size == 0 ) | |
322 | && (part != RAW_PART)) | |
323 | { | |
324 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
325 | return(ENXIO); | |
326 | } | |
327 | sd->partflags[part] |= SDOPEN; | |
328 | sd->openparts |= (1 << part); | |
78ed81a3 | 329 | #ifdef SDDEBUG |
15637ed4 RG |
330 | if(scsi_debug & TRACEOPENS) |
331 | printf("open %d %d\n",sdstrats,sdqueues); | |
78ed81a3 | 332 | #endif /*SDDEBUG*/ |
15637ed4 RG |
333 | return(0); |
334 | } | |
335 | ||
336 | /*******************************************************\ | |
337 | * Get ownership of a scsi_xfer * | |
338 | * If need be, sleep on it, until it comes free * | |
339 | \*******************************************************/ | |
340 | struct scsi_xfer *sd_get_xs(unit,flags) | |
341 | int flags; | |
342 | int unit; | |
343 | { | |
344 | struct scsi_xfer *xs; | |
345 | int s; | |
346 | ||
347 | if(flags & (SCSI_NOSLEEP | SCSI_NOMASK)) | |
348 | { | |
349 | if (xs = sd_free_xfer[unit]) | |
350 | { | |
351 | sd_free_xfer[unit] = xs->next; | |
352 | xs->flags = 0; | |
353 | } | |
354 | } | |
355 | else | |
356 | { | |
357 | s = SPLSD(); | |
358 | while (!(xs = sd_free_xfer[unit])) | |
359 | { | |
360 | sd_xfer_block_wait[unit]++; /* someone waiting! */ | |
361 | sleep((caddr_t)&sd_free_xfer[unit], PRIBIO+1); | |
362 | sd_xfer_block_wait[unit]--; | |
363 | } | |
364 | sd_free_xfer[unit] = xs->next; | |
365 | splx(s); | |
366 | xs->flags = 0; | |
367 | } | |
368 | return(xs); | |
369 | } | |
370 | ||
371 | /*******************************************************\ | |
372 | * Free a scsi_xfer, wake processes waiting for it * | |
373 | \*******************************************************/ | |
374 | sd_free_xs(unit,xs,flags) | |
375 | struct scsi_xfer *xs; | |
376 | int unit; | |
377 | int flags; | |
378 | { | |
379 | int s; | |
380 | ||
381 | if(flags & SCSI_NOMASK) | |
382 | { | |
383 | if (sd_xfer_block_wait[unit]) | |
384 | { | |
385 | printf("doing a wakeup from NOMASK mode\n"); | |
386 | wakeup((caddr_t)&sd_free_xfer[unit]); | |
387 | } | |
388 | xs->next = sd_free_xfer[unit]; | |
389 | sd_free_xfer[unit] = xs; | |
390 | } | |
391 | else | |
392 | { | |
393 | s = SPLSD(); | |
394 | if (sd_xfer_block_wait[unit]) | |
395 | wakeup((caddr_t)&sd_free_xfer[unit]); | |
396 | xs->next = sd_free_xfer[unit]; | |
397 | sd_free_xfer[unit] = xs; | |
398 | splx(s); | |
399 | } | |
400 | } | |
401 | ||
402 | /*******************************************************\ | |
403 | * trim the size of the transfer if needed, * | |
404 | * called by physio * | |
405 | * basically the smaller of our max and the scsi driver's* | |
406 | * minphys (note we have no max) * | |
407 | \*******************************************************/ | |
408 | /* Trim buffer length if buffer-size is bigger than page size */ | |
409 | void sdminphys(bp) | |
410 | struct buf *bp; | |
411 | { | |
78ed81a3 | 412 | (*(sd_data[UNIT(bp->b_dev)]->sc_sw->scsi_minphys))(bp); |
15637ed4 RG |
413 | } |
414 | ||
415 | /*******************************************************\ | |
416 | * Actually translate the requested transfer into * | |
417 | * one the physical driver can understand * | |
418 | * The transfer is described by a buf and will include * | |
419 | * only one physical transfer. * | |
420 | \*******************************************************/ | |
421 | ||
422 | int sdstrategy(bp) | |
423 | struct buf *bp; | |
424 | { | |
425 | struct buf *dp; | |
426 | unsigned int opri; | |
427 | struct sd_data *sd ; | |
428 | int unit; | |
429 | ||
430 | sdstrats++; | |
431 | unit = UNIT((bp->b_dev)); | |
78ed81a3 | 432 | sd = sd_data[unit]; |
433 | #ifdef SDDEBUG | |
15637ed4 RG |
434 | if(scsi_debug & PRINTROUTINES) printf("\nsdstrategy "); |
435 | if(scsi_debug & SHOWREQUESTS) printf("sd%d: %d bytes @ blk%d\n", | |
436 | unit,bp->b_bcount,bp->b_blkno); | |
78ed81a3 | 437 | #endif /*SDDEBUG*/ |
15637ed4 RG |
438 | sdminphys(bp); |
439 | /*******************************************************\ | |
440 | * If the device has been made invalid, error out * | |
441 | \*******************************************************/ | |
442 | if(!(sd->flags & SDVALID)) | |
443 | { | |
444 | bp->b_error = EIO; | |
445 | goto bad; | |
446 | } | |
447 | /*******************************************************\ | |
448 | * "soft" write protect check * | |
449 | \*******************************************************/ | |
450 | if ((sd->flags & SDWRITEPROT) && (bp->b_flags & B_READ) == 0) { | |
451 | bp->b_error = EROFS; | |
452 | goto bad; | |
453 | } | |
454 | /*******************************************************\ | |
455 | * If it's a null transfer, return immediatly * | |
456 | \*******************************************************/ | |
457 | if (bp->b_bcount == 0) | |
458 | { | |
459 | goto done; | |
460 | } | |
461 | ||
462 | /*******************************************************\ | |
463 | * Decide which unit and partition we are talking about * | |
464 | * only raw is ok if no label * | |
465 | \*******************************************************/ | |
466 | if(PARTITION(bp->b_dev) != RAW_PART) | |
467 | { | |
468 | if (!(sd->flags & SDHAVELABEL)) | |
469 | { | |
470 | bp->b_error = EIO; | |
471 | goto bad; | |
472 | } | |
473 | ||
474 | /* | |
475 | * do bounds checking, adjust transfer. if error, process. | |
476 | * if end of partition, just return | |
477 | */ | |
478 | if (bounds_check_with_label(bp,&sd->disklabel,sd->wlabel) <= 0) | |
479 | goto done; | |
480 | /* otherwise, process transfer request */ | |
481 | } | |
482 | ||
483 | opri = SPLSD(); | |
484 | dp = &sd_buf_queue[unit]; | |
485 | ||
486 | /*******************************************************\ | |
487 | * Place it in the queue of disk activities for this disk* | |
488 | \*******************************************************/ | |
489 | disksort(dp, bp); | |
490 | ||
491 | /*******************************************************\ | |
492 | * Tell the device to get going on the transfer if it's * | |
493 | * not doing anything, otherwise just wait for completion* | |
494 | \*******************************************************/ | |
495 | sdstart(unit); | |
496 | ||
497 | splx(opri); | |
498 | return; | |
499 | bad: | |
500 | bp->b_flags |= B_ERROR; | |
501 | done: | |
502 | ||
503 | /*******************************************************\ | |
504 | * Correctly set the buf to indicate a completed xfer * | |
505 | \*******************************************************/ | |
506 | bp->b_resid = bp->b_bcount; | |
507 | biodone(bp); | |
508 | return; | |
509 | } | |
510 | ||
511 | /***************************************************************\ | |
512 | * sdstart looks to see if there is a buf waiting for the device * | |
513 | * and that the device is not already busy. If both are true, * | |
78ed81a3 | 514 | * It dequeues the buf and creates a scsi command to perform the * |
15637ed4 RG |
515 | * transfer in the buf. The transfer request will call sd_done * |
516 | * on completion, which will in turn call this routine again * | |
517 | * so that the next queued transfer is performed. * | |
518 | * The bufs are queued by the strategy routine (sdstrategy) * | |
519 | * * | |
520 | * This routine is also called after other non-queued requests * | |
521 | * have been made of the scsi driver, to ensure that the queue * | |
522 | * continues to be drained. * | |
523 | * * | |
524 | * must be called at the correct (highish) spl level * | |
525 | \***************************************************************/ | |
526 | /* sdstart() is called at SPLSD from sdstrategy and sd_done*/ | |
527 | sdstart(unit) | |
528 | int unit; | |
529 | { | |
530 | int drivecount; | |
531 | register struct buf *bp = 0; | |
532 | register struct buf *dp; | |
533 | struct scsi_xfer *xs; | |
534 | struct scsi_rw_big cmd; | |
535 | int blkno, nblk; | |
78ed81a3 | 536 | struct sd_data *sd = sd_data[unit]; |
15637ed4 RG |
537 | struct partition *p ; |
538 | ||
78ed81a3 | 539 | #ifdef SDDEBUG |
15637ed4 | 540 | if(scsi_debug & PRINTROUTINES) printf("sdstart%d ",unit); |
78ed81a3 | 541 | #endif /*SDDEBUG*/ |
15637ed4 | 542 | /*******************************************************\ |
78ed81a3 | 543 | * Check if the device is already running full capacity * |
15637ed4 RG |
544 | \*******************************************************/ |
545 | if(!sd_free_xfer[unit]) | |
546 | { | |
547 | return; /* none for us, unit already underway */ | |
548 | } | |
549 | ||
78ed81a3 | 550 | /*******************************************************\ |
551 | * there is excess capacity, but a special waits * | |
552 | * It'll need the adapter as soon as we clear out of the * | |
553 | * way and let it run (user level wait). * | |
554 | \*******************************************************/ | |
555 | if(sd_xfer_block_wait[unit]) | |
15637ed4 | 556 | { |
78ed81a3 | 557 | return; |
15637ed4 RG |
558 | } |
559 | ||
78ed81a3 | 560 | /*******************************************************\ |
561 | * See if there is a buf with work for us to do.. * | |
562 | \*******************************************************/ | |
15637ed4 | 563 | dp = &sd_buf_queue[unit]; |
78ed81a3 | 564 | if ((bp = dp->b_actf) == NULL) /* yes, an assign */ |
15637ed4 | 565 | { |
15637ed4 RG |
566 | return; |
567 | } | |
568 | ||
78ed81a3 | 569 | dp->b_actf = bp->av_forw; |
570 | ||
15637ed4 RG |
571 | /*******************************************************\ |
572 | * If the device has become invalid, abort all the * | |
573 | * reads and writes until all files have been closed and * | |
574 | * re-openned * | |
575 | \*******************************************************/ | |
576 | if(!(sd->flags & SDVALID)) | |
577 | { | |
78ed81a3 | 578 | goto bad; |
15637ed4 RG |
579 | } |
580 | /*******************************************************\ | |
78ed81a3 | 581 | * We have a buf, now we know we are going to go through * |
582 | * With this thing.. * | |
583 | * * | |
15637ed4 RG |
584 | * First, translate the block to absolute * |
585 | \*******************************************************/ | |
586 | p = sd->disklabel.d_partitions + PARTITION(bp->b_dev); | |
587 | blkno = bp->b_blkno + p->p_offset; | |
588 | nblk = (bp->b_bcount + 511) >> 9; | |
589 | ||
590 | /*******************************************************\ | |
591 | * Fill out the scsi command * | |
592 | \*******************************************************/ | |
593 | bzero(&cmd, sizeof(cmd)); | |
594 | cmd.op_code = (bp->b_flags & B_READ) | |
595 | ? READ_BIG : WRITE_BIG; | |
596 | cmd.addr_3 = (blkno & 0xff000000) >> 24; | |
597 | cmd.addr_2 = (blkno & 0xff0000) >> 16; | |
598 | cmd.addr_1 = (blkno & 0xff00) >> 8; | |
599 | cmd.addr_0 = blkno & 0xff; | |
600 | cmd.length2 = (nblk & 0xff00) >> 8; | |
601 | cmd.length1 = (nblk & 0xff); | |
602 | /*******************************************************\ | |
78ed81a3 | 603 | * Call the routine that chats with the adapter * |
15637ed4 RG |
604 | * Note: we cannot sleep as we may be an interrupt * |
605 | \*******************************************************/ | |
78ed81a3 | 606 | if (sd_scsi_cmd(unit, |
607 | &cmd, | |
608 | sizeof(cmd), | |
609 | (u_char *)bp->b_un.b_addr, | |
610 | bp->b_bcount, | |
611 | 10000, | |
612 | bp, | |
613 | SCSI_NOSLEEP| ((bp->b_flags & B_READ)? | |
614 | SCSI_DATA_IN : SCSI_DATA_OUT)) | |
615 | != SUCCESSFULLY_QUEUED) | |
15637ed4 | 616 | { |
78ed81a3 | 617 | bad: |
15637ed4 | 618 | printf("sd%d: oops not queued",unit); |
78ed81a3 | 619 | bp->b_error = EIO; |
620 | bp->b_flags |= B_ERROR; | |
621 | biodone(bp); | |
622 | return ; | |
15637ed4 RG |
623 | } |
624 | sdqueues++; | |
625 | } | |
626 | ||
15637ed4 RG |
627 | /*******************************************************\ |
628 | * Perform special action on behalf of the user * | |
629 | * Knows about the internals of this device * | |
630 | \*******************************************************/ | |
631 | sdioctl(dev_t dev, int cmd, caddr_t addr, int flag) | |
632 | { | |
633 | /* struct sd_cmd_buf *args;*/ | |
634 | int error = 0; | |
635 | unsigned int opri; | |
636 | unsigned char unit, part; | |
637 | register struct sd_data *sd; | |
638 | ||
639 | ||
640 | /*******************************************************\ | |
641 | * Find the device that the user is talking about * | |
642 | \*******************************************************/ | |
643 | unit = UNIT(dev); | |
644 | part = PARTITION(dev); | |
78ed81a3 | 645 | sd = sd_data[unit]; |
646 | #ifdef SDDEBUG | |
15637ed4 | 647 | if(scsi_debug & PRINTROUTINES) printf("sdioctl%d ",unit); |
78ed81a3 | 648 | #endif /*SDDEBUG*/ |
15637ed4 RG |
649 | |
650 | /*******************************************************\ | |
651 | * If the device is not valid.. abandon ship * | |
652 | \*******************************************************/ | |
78ed81a3 | 653 | if (!(sd->flags & SDVALID)) |
15637ed4 RG |
654 | return(EIO); |
655 | switch(cmd) | |
656 | { | |
657 | ||
658 | case DIOCSBAD: | |
659 | error = EINVAL; | |
660 | break; | |
661 | ||
662 | case DIOCGDINFO: | |
663 | *(struct disklabel *)addr = sd->disklabel; | |
664 | break; | |
665 | ||
666 | case DIOCGPART: | |
667 | ((struct partinfo *)addr)->disklab = &sd->disklabel; | |
668 | ((struct partinfo *)addr)->part = | |
669 | &sd->disklabel.d_partitions[PARTITION(dev)]; | |
670 | break; | |
671 | ||
672 | case DIOCSDINFO: | |
673 | if ((flag & FWRITE) == 0) | |
674 | error = EBADF; | |
675 | else | |
676 | error = setdisklabel(&sd->disklabel, | |
677 | (struct disklabel *)addr, | |
678 | /*(sd->flags & DKFL_BSDLABEL) ? sd->openparts : */0, | |
679 | sd->dosparts); | |
680 | if (error == 0) { | |
681 | sd->flags |= SDHAVELABEL; | |
682 | } | |
683 | break; | |
684 | ||
685 | case DIOCWLABEL: | |
686 | sd->flags &= ~SDWRITEPROT; | |
687 | if ((flag & FWRITE) == 0) | |
688 | error = EBADF; | |
689 | else | |
690 | sd->wlabel = *(int *)addr; | |
691 | break; | |
692 | ||
693 | case DIOCWDINFO: | |
694 | sd->flags &= ~SDWRITEPROT; | |
695 | if ((flag & FWRITE) == 0) | |
696 | error = EBADF; | |
697 | else | |
698 | { | |
699 | if ((error = setdisklabel(&sd->disklabel | |
700 | , (struct disklabel *)addr | |
701 | , /*(sd->flags & SDHAVELABEL) ? sd->openparts :*/ 0 | |
702 | , sd->dosparts)) == 0) | |
703 | { | |
704 | int wlab; | |
705 | ||
706 | sd->flags |= SDHAVELABEL; /* ok write will succeed */ | |
707 | ||
708 | /* simulate opening partition 0 so write succeeds */ | |
709 | sd->openparts |= (1 << 0); /* XXX */ | |
710 | wlab = sd->wlabel; | |
711 | sd->wlabel = 1; | |
712 | error = writedisklabel(dev, sdstrategy, | |
713 | &sd->disklabel, sd->dosparts); | |
714 | sd->wlabel = wlab; | |
715 | } | |
716 | } | |
717 | break; | |
718 | ||
719 | ||
720 | default: | |
721 | error = ENOTTY; | |
722 | break; | |
723 | } | |
724 | return (error); | |
725 | } | |
726 | ||
727 | ||
728 | /*******************************************************\ | |
729 | * Load the label information on the named device * | |
730 | \*******************************************************/ | |
731 | int sdgetdisklabel(unit) | |
732 | unsigned char unit; | |
733 | { | |
734 | /*unsigned int n, m;*/ | |
735 | char *errstring; | |
736 | struct dos_partition *dos_partition_p; | |
78ed81a3 | 737 | struct sd_data *sd = sd_data[unit]; |
15637ed4 RG |
738 | |
739 | /*******************************************************\ | |
740 | * If the inflo is already loaded, use it * | |
741 | \*******************************************************/ | |
742 | if(sd->flags & SDHAVELABEL) return(ESUCCESS); | |
743 | ||
744 | bzero(&sd->disklabel,sizeof(struct disklabel)); | |
745 | /*******************************************************\ | |
746 | * make partition 3 the whole disk in case of failure * | |
747 | * then get pdinfo * | |
78ed81a3 | 748 | * for historical reasons, make part a same as raw part * |
15637ed4 RG |
749 | \*******************************************************/ |
750 | sd->disklabel.d_partitions[0].p_offset = 0; | |
751 | sd->disklabel.d_partitions[0].p_size = sd->params.disksize; | |
752 | sd->disklabel.d_partitions[RAW_PART].p_offset = 0; | |
753 | sd->disklabel.d_partitions[RAW_PART].p_size = sd->params.disksize; | |
754 | sd->disklabel.d_npartitions = MAXPARTITIONS; | |
755 | sd->disklabel.d_secsize = 512; /* as long as it's not 0 */ | |
756 | sd->disklabel.d_ntracks = sd->params.heads; | |
757 | sd->disklabel.d_nsectors = sd->params.sectors; | |
758 | sd->disklabel.d_ncylinders = sd->params.cyls; | |
759 | sd->disklabel.d_secpercyl = sd->params.heads * sd->params.sectors; | |
760 | if (sd->disklabel.d_secpercyl == 0) | |
761 | { | |
762 | sd->disklabel.d_secpercyl = 100; | |
763 | /* as long as it's not 0 */ | |
78ed81a3 | 764 | /* readdisklabel divides by it (?)*/ |
15637ed4 RG |
765 | } |
766 | ||
767 | /*******************************************************\ | |
78ed81a3 | 768 | * Call the generic disklabel extraction routine * |
15637ed4 RG |
769 | \*******************************************************/ |
770 | if(errstring = readdisklabel(makedev(0 ,(unit<<UNITSHIFT )+3) | |
771 | , sdstrategy | |
772 | , &sd->disklabel | |
773 | , sd->dosparts | |
774 | , 0 | |
775 | , 0)) | |
776 | { | |
777 | printf("sd%d: %s\n",unit, errstring); | |
778 | return(ENXIO); | |
779 | } | |
15637ed4 RG |
780 | |
781 | sd->flags |= SDHAVELABEL; /* WE HAVE IT ALL NOW */ | |
782 | return(ESUCCESS); | |
783 | } | |
784 | ||
785 | /*******************************************************\ | |
786 | * Find out from the device what it's capacity is * | |
787 | \*******************************************************/ | |
788 | sd_size(unit, flags) | |
789 | { | |
790 | struct scsi_read_cap_data rdcap; | |
791 | struct scsi_read_capacity scsi_cmd; | |
792 | int size; | |
793 | ||
794 | /*******************************************************\ | |
795 | * make up a scsi command and ask the scsi driver to do * | |
796 | * it for you. * | |
797 | \*******************************************************/ | |
798 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
799 | scsi_cmd.op_code = READ_CAPACITY; | |
800 | ||
801 | /*******************************************************\ | |
802 | * If the command works, interpret the result as a 4 byte* | |
803 | * number of blocks * | |
804 | \*******************************************************/ | |
805 | if (sd_scsi_cmd(unit, | |
806 | &scsi_cmd, | |
807 | sizeof(scsi_cmd), | |
808 | &rdcap, | |
809 | sizeof(rdcap), | |
78ed81a3 | 810 | 6000, |
811 | NULL, | |
812 | flags | SCSI_DATA_IN) != 0) | |
15637ed4 | 813 | { |
78ed81a3 | 814 | printf("sd%d: could not get size\n", unit); |
15637ed4 RG |
815 | return(0); |
816 | } else { | |
817 | size = rdcap.addr_0 + 1 ; | |
818 | size += rdcap.addr_1 << 8; | |
819 | size += rdcap.addr_2 << 16; | |
820 | size += rdcap.addr_3 << 24; | |
821 | } | |
822 | return(size); | |
823 | } | |
824 | ||
825 | /*******************************************************\ | |
826 | * Get scsi driver to send a "are you ready?" command * | |
827 | \*******************************************************/ | |
828 | sd_test_unit_ready(unit,flags) | |
829 | int unit,flags; | |
830 | { | |
831 | struct scsi_test_unit_ready scsi_cmd; | |
832 | ||
833 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
834 | scsi_cmd.op_code = TEST_UNIT_READY; | |
835 | ||
836 | return (sd_scsi_cmd(unit, | |
837 | &scsi_cmd, | |
838 | sizeof(scsi_cmd), | |
839 | 0, | |
840 | 0, | |
841 | 100000, | |
78ed81a3 | 842 | NULL, |
15637ed4 RG |
843 | flags)); |
844 | } | |
845 | ||
846 | /*******************************************************\ | |
847 | * Prevent or allow the user to remove the tape * | |
78ed81a3 | 848 | * Don't change this status if any partitions are open * |
15637ed4 RG |
849 | \*******************************************************/ |
850 | sd_prevent(unit,type,flags) | |
851 | int unit,type,flags; | |
852 | { | |
853 | struct scsi_prevent scsi_cmd; | |
854 | ||
78ed81a3 | 855 | if(sd_data[unit]->openparts) return; |
856 | ||
15637ed4 RG |
857 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
858 | scsi_cmd.op_code = PREVENT_ALLOW; | |
78ed81a3 | 859 | scsi_cmd.how=type; |
15637ed4 RG |
860 | return (sd_scsi_cmd(unit, |
861 | &scsi_cmd, | |
862 | sizeof(scsi_cmd), | |
863 | 0, | |
864 | 0, | |
865 | 5000, | |
78ed81a3 | 866 | NULL, |
15637ed4 RG |
867 | flags) ); |
868 | } | |
869 | /*******************************************************\ | |
870 | * Get scsi driver to send a "start up" command * | |
871 | \*******************************************************/ | |
872 | sd_start_unit(unit,flags) | |
873 | int unit,flags; | |
874 | { | |
875 | struct scsi_start_stop scsi_cmd; | |
876 | ||
877 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
878 | scsi_cmd.op_code = START_STOP; | |
78ed81a3 | 879 | scsi_cmd.how = SSS_START; |
15637ed4 RG |
880 | |
881 | return (sd_scsi_cmd(unit, | |
882 | &scsi_cmd, | |
883 | sizeof(scsi_cmd), | |
884 | 0, | |
885 | 0, | |
886 | 2000, | |
78ed81a3 | 887 | NULL, |
15637ed4 RG |
888 | flags)); |
889 | } | |
890 | ||
891 | /*******************************************************\ | |
892 | * Tell the device to map out a defective block * | |
893 | \*******************************************************/ | |
894 | sd_reassign_blocks(unit,block) | |
895 | { | |
896 | struct scsi_reassign_blocks scsi_cmd; | |
897 | struct scsi_reassign_blocks_data rbdata; | |
898 | ||
899 | ||
900 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
901 | bzero(&rbdata, sizeof(rbdata)); | |
902 | scsi_cmd.op_code = REASSIGN_BLOCKS; | |
903 | ||
904 | rbdata.length_msb = 0; | |
905 | rbdata.length_lsb = sizeof(rbdata.defect_descriptor[0]); | |
906 | rbdata.defect_descriptor[0].dlbaddr_3 = ((block >> 24) & 0xff); | |
907 | rbdata.defect_descriptor[0].dlbaddr_2 = ((block >> 16) & 0xff); | |
908 | rbdata.defect_descriptor[0].dlbaddr_1 = ((block >> 8) & 0xff); | |
909 | rbdata.defect_descriptor[0].dlbaddr_0 = ((block ) & 0xff); | |
910 | ||
911 | return(sd_scsi_cmd(unit, | |
912 | &scsi_cmd, | |
913 | sizeof(scsi_cmd), | |
914 | &rbdata, | |
915 | sizeof(rbdata), | |
916 | 5000, | |
78ed81a3 | 917 | NULL, |
918 | SCSI_DATA_OUT)); | |
15637ed4 RG |
919 | } |
920 | ||
921 | #define b2tol(a) (((unsigned)(a##_1) << 8) + (unsigned)a##_0 ) | |
922 | ||
923 | /*******************************************************\ | |
924 | * Get the scsi driver to send a full inquiry to the * | |
925 | * device and use the results to fill out the disk * | |
926 | * parameter structure. * | |
927 | \*******************************************************/ | |
928 | ||
929 | int sd_get_parms(unit, flags) | |
930 | { | |
78ed81a3 | 931 | struct sd_data *sd = sd_data[unit]; |
15637ed4 RG |
932 | struct disk_parms *disk_parms = &sd->params; |
933 | struct scsi_mode_sense scsi_cmd; | |
934 | struct scsi_mode_sense_data | |
935 | { | |
936 | struct scsi_mode_header header; | |
937 | struct blk_desc blk_desc; | |
938 | union disk_pages pages; | |
939 | }scsi_sense; | |
940 | int sectors; | |
941 | ||
942 | /*******************************************************\ | |
943 | * First check if we have it all loaded * | |
944 | \*******************************************************/ | |
945 | if(sd->flags & SDVALID) return(0); | |
946 | /*******************************************************\ | |
947 | * First do a mode sense page 3 * | |
948 | \*******************************************************/ | |
78ed81a3 | 949 | #ifdef SDDEBUG |
15637ed4 RG |
950 | if (sd_debug) |
951 | { | |
952 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
953 | scsi_cmd.op_code = MODE_SENSE; | |
78ed81a3 | 954 | scsi_cmd.page = 3; |
15637ed4 RG |
955 | scsi_cmd.length = 0x24; |
956 | /*******************************************************\ | |
957 | * do the command, but we don't need the results * | |
958 | * just print them for our interest's sake * | |
959 | \*******************************************************/ | |
960 | if (sd_scsi_cmd(unit, | |
961 | &scsi_cmd, | |
962 | sizeof(scsi_cmd), | |
963 | &scsi_sense, | |
964 | sizeof(scsi_sense), | |
965 | 2000, | |
78ed81a3 | 966 | NULL, |
967 | flags | SCSI_DATA_IN) != 0) | |
15637ed4 | 968 | { |
78ed81a3 | 969 | printf("sd%d: could not mode sense (3)\n", unit); |
15637ed4 | 970 | } |
78ed81a3 | 971 | else |
972 | { | |
15637ed4 RG |
973 | printf("unit %d: %d trk/zone, %d alt_sec/zone, %d alt_trk/zone, %d alt_trk/lun\n", |
974 | unit, | |
975 | b2tol(scsi_sense.pages.disk_format.trk_z), | |
976 | b2tol(scsi_sense.pages.disk_format.alt_sec), | |
977 | b2tol(scsi_sense.pages.disk_format.alt_trk_z), | |
978 | b2tol(scsi_sense.pages.disk_format.alt_trk_v)); | |
979 | printf(" %d sec/trk, %d bytes/sec, %d interleave, %d %d bytes/log_blk\n", | |
980 | b2tol(scsi_sense.pages.disk_format.ph_sec_t), | |
981 | b2tol(scsi_sense.pages.disk_format.bytes_s), | |
982 | b2tol(scsi_sense.pages.disk_format.interleave), | |
983 | sd_size(unit, flags), | |
984 | _3btol(scsi_sense.blk_desc.blklen)); | |
78ed81a3 | 985 | } |
15637ed4 | 986 | } |
78ed81a3 | 987 | #endif /*SDDEBUG*/ |
15637ed4 RG |
988 | |
989 | ||
990 | /*******************************************************\ | |
991 | * do a "mode sense page 4" * | |
992 | \*******************************************************/ | |
993 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
994 | scsi_cmd.op_code = MODE_SENSE; | |
78ed81a3 | 995 | scsi_cmd.page = 4; |
15637ed4 RG |
996 | scsi_cmd.length = 0x20; |
997 | /*******************************************************\ | |
998 | * If the command worked, use the results to fill out * | |
999 | * the parameter structure * | |
1000 | \*******************************************************/ | |
1001 | if (sd_scsi_cmd(unit, | |
1002 | &scsi_cmd, | |
1003 | sizeof(scsi_cmd), | |
1004 | &scsi_sense, | |
1005 | sizeof(scsi_sense), | |
1006 | 2000, | |
78ed81a3 | 1007 | NULL, |
1008 | flags | SCSI_DATA_IN) != 0) | |
15637ed4 | 1009 | { |
78ed81a3 | 1010 | printf("sd%d could not mode sense (4).", unit); |
1011 | printf(" Using ficticious geometry\n"); | |
1012 | /* | |
1013 | * use adaptec standard ficticious geometry | |
1014 | * this depends on which controller (e.g. 1542C is | |
1015 | * different. but we have to put SOMETHING here..) | |
1016 | */ | |
15637ed4 RG |
1017 | sectors = sd_size(unit, flags); |
1018 | disk_parms->heads = 64; | |
1019 | disk_parms->sectors = 32; | |
1020 | disk_parms->cyls = sectors/(64 * 32); | |
1021 | disk_parms->secsiz = SECSIZE; | |
78ed81a3 | 1022 | disk_parms->disksize = sectors; |
15637ed4 RG |
1023 | } |
1024 | else | |
1025 | { | |
1026 | ||
78ed81a3 | 1027 | #ifdef SDDEBUG |
15637ed4 RG |
1028 | if (sd_debug) |
1029 | { | |
1030 | printf(" %d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n", | |
1031 | _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2), | |
1032 | scsi_sense.pages.rigid_geometry.nheads, | |
1033 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_wp), | |
1034 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_rwc), | |
1035 | b2tol(scsi_sense.pages.rigid_geometry.land_zone)); | |
1036 | } | |
78ed81a3 | 1037 | #endif /*SDDEBUG*/ |
15637ed4 RG |
1038 | |
1039 | /*******************************************************\ | |
1040 | * KLUDGE!!(for zone recorded disks) * | |
1041 | * give a number of sectors so that sec * trks * cyls * | |
1042 | * is <= disk_size * | |
78ed81a3 | 1043 | * can lead to wasted space! THINK ABOUT THIS ! * |
15637ed4 RG |
1044 | \*******************************************************/ |
1045 | disk_parms->heads = scsi_sense.pages.rigid_geometry.nheads; | |
1046 | disk_parms->cyls = _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2); | |
1047 | disk_parms->secsiz = _3btol(&scsi_sense.blk_desc.blklen); | |
1048 | ||
1049 | sectors = sd_size(unit, flags); | |
78ed81a3 | 1050 | disk_parms->disksize = sectors; |
1051 | sectors /= (disk_parms->heads * disk_parms->cyls); | |
1052 | disk_parms->sectors = sectors; /* dubious on SCSI*//*XXX*/ | |
15637ed4 RG |
1053 | } |
1054 | ||
1055 | sd->flags |= SDVALID; | |
1056 | return(0); | |
1057 | } | |
1058 | ||
1059 | /*******************************************************\ | |
1060 | * close the device.. only called if we are the LAST * | |
1061 | * occurence of an open device * | |
78ed81a3 | 1062 | * convenient now but usually a pain * |
15637ed4 RG |
1063 | \*******************************************************/ |
1064 | sdclose(dev) | |
1065 | dev_t dev; | |
1066 | { | |
1067 | unsigned char unit, part; | |
1068 | unsigned int old_priority; | |
78ed81a3 | 1069 | struct sd_data *sd; |
15637ed4 RG |
1070 | |
1071 | unit = UNIT(dev); | |
1072 | part = PARTITION(dev); | |
78ed81a3 | 1073 | sd = sd_data[unit]; |
1074 | sd->partflags[part] &= ~SDOPEN; | |
1075 | sd->openparts &= ~(1 << part); | |
1076 | sd_prevent(unit,PR_ALLOW,SCSI_SILENT|SCSI_ERR_OK); | |
1077 | return(0); | |
1078 | } | |
1079 | ||
1080 | /*******************************************************\ | |
1081 | * This routine is called by the scsi interrupt when * | |
1082 | * the transfer is complete. | |
1083 | \*******************************************************/ | |
1084 | int sd_done(unit,xs) | |
1085 | int unit; | |
1086 | struct scsi_xfer *xs; | |
1087 | { | |
1088 | struct buf *bp; | |
1089 | int retval; | |
1090 | int retries = 0; | |
1091 | ||
1092 | #ifdef SDDEBUG | |
1093 | if(scsi_debug & PRINTROUTINES) printf("sd_done%d ",unit); | |
1094 | #endif /*SDDEBUG*/ | |
1095 | #ifdef PARANOID | |
1096 | if (! (xs->flags & INUSE)) | |
1097 | panic("scsi_xfer not in use!"); | |
1098 | #endif | |
1099 | if((bp = xs->bp) == NULL) | |
15637ed4 | 1100 | { |
78ed81a3 | 1101 | /***********************************************\ |
1102 | * if it's a normal user level request, then ask * | |
1103 | * The user level code to handle error checking * | |
1104 | * rather than doing it here at interrupt time * | |
1105 | \***********************************************/ | |
1106 | wakeup(xs); | |
1107 | return; | |
15637ed4 | 1108 | } |
78ed81a3 | 1109 | |
1110 | /***********************************************\ | |
1111 | * If it has a buf, we might be working with * | |
1112 | * a request from the buffer cache or some other * | |
1113 | * piece of code that requires us to process * | |
1114 | * errors right now, despite cost * | |
1115 | \***********************************************/ | |
1116 | switch(xs->error) | |
1117 | { | |
1118 | case XS_NOERROR: | |
1119 | bp->b_error = 0; | |
1120 | bp->b_resid = 0; | |
1121 | break; | |
1122 | ||
1123 | case XS_SENSE: | |
1124 | retval = (sd_interpret_sense(unit,xs)); | |
1125 | if(retval) | |
1126 | { | |
1127 | bp->b_flags |= B_ERROR; | |
1128 | bp->b_error = retval; | |
1129 | } | |
1130 | break; | |
1131 | ||
1132 | case XS_BUSY: | |
1133 | /*should somehow arange for a 1 sec delay here (how?)*/ | |
1134 | case XS_TIMEOUT: | |
1135 | /***********************************************\ | |
1136 | * If we can, resubmit it to the adapter. * | |
1137 | \***********************************************/ | |
1138 | if(xs->retries--) | |
1139 | { | |
1140 | xs->error = XS_NOERROR; | |
1141 | xs->flags &= ~ITSDONE; | |
1142 | if ( (*(sd_data[unit]->sc_sw->scsi_cmd))(xs) | |
1143 | == SUCCESSFULLY_QUEUED) | |
1144 | { /* don't wake the job, ok? */ | |
1145 | return; | |
1146 | } | |
1147 | xs->flags |= ITSDONE; | |
1148 | } /* fall through */ | |
1149 | ||
1150 | case XS_DRIVER_STUFFUP: | |
1151 | bp->b_flags |= B_ERROR; | |
1152 | bp->b_error = EIO; | |
1153 | break; | |
1154 | default: | |
1155 | printf("sd%d: unknown error category from scsi driver\n" | |
1156 | ,unit); | |
1157 | } | |
1158 | /*******************************\ | |
1159 | * tell the owner we're done * | |
1160 | * then free our resources * | |
1161 | * and see if there's more work * | |
1162 | \*******************************/ | |
1163 | biodone(bp); | |
1164 | sd_free_xs(unit,xs,0); | |
1165 | sdstart(unit); /* If there's anything waiting.. do it */ | |
15637ed4 RG |
1166 | } |
1167 | ||
1168 | /*******************************************************\ | |
1169 | * ask the scsi driver to perform a command for us. * | |
1170 | * Call it through the switch table, and tell it which * | |
1171 | * sub-unit we want, and what target and lu we wish to * | |
1172 | * talk to. Also tell it where to find the command * | |
78ed81a3 | 1173 | * and how long it is. * |
15637ed4 | 1174 | * Also tell it where to read/write the data, and how * |
78ed81a3 | 1175 | * long the data is supposed to be. If we have a buf * |
1176 | * to associate with the transfer, we need that too. * | |
15637ed4 | 1177 | \*******************************************************/ |
78ed81a3 | 1178 | int sd_scsi_cmd(unit,scsi_cmd,cmdlen,data_addr,datalen,timeout,bp,flags) |
15637ed4 RG |
1179 | |
1180 | int unit,flags; | |
1181 | struct scsi_generic *scsi_cmd; | |
1182 | int cmdlen; | |
1183 | int timeout; | |
1184 | u_char *data_addr; | |
1185 | int datalen; | |
78ed81a3 | 1186 | struct buf *bp; |
15637ed4 RG |
1187 | { |
1188 | struct scsi_xfer *xs; | |
1189 | int retval; | |
1190 | int s; | |
78ed81a3 | 1191 | struct sd_data *sd = sd_data[unit]; |
15637ed4 | 1192 | |
78ed81a3 | 1193 | #ifdef SDDEBUG |
15637ed4 | 1194 | if(scsi_debug & PRINTROUTINES) printf("\nsd_scsi_cmd%d ",unit); |
78ed81a3 | 1195 | #endif /*SDDEBUG*/ |
1196 | ||
1197 | #ifdef PARANOID | |
1198 | if(!(sd->sc_sw)) /* If we have a scsi driver */ | |
1199 | {/* How we got here is anyone's guess */ | |
1200 | printf("sd%d: not set up\n",unit); | |
1201 | return(EINVAL); | |
1202 | } | |
1203 | #endif | |
1204 | xs = sd_get_xs(unit,flags); /* should wait unless booting */ | |
1205 | #ifdef PARANOID | |
1206 | if(!xs) | |
15637ed4 | 1207 | { |
78ed81a3 | 1208 | printf("sd_scsi_cmd%d: controller busy" |
1209 | " (this should never happen)\n",unit); | |
1210 | return(EBUSY); | |
1211 | } | |
1212 | #endif | |
1213 | /*******************************************************\ | |
1214 | * Fill out the scsi_xfer structure * | |
1215 | \*******************************************************/ | |
1216 | xs->flags = INUSE | flags; | |
1217 | xs->adapter = sd->ctlr; | |
1218 | xs->targ = sd->targ; | |
1219 | xs->lu = sd->lu; | |
1220 | xs->retries = SD_RETRIES; | |
1221 | xs->timeout = timeout; | |
1222 | xs->cmd = scsi_cmd; | |
1223 | xs->cmdlen = cmdlen; | |
1224 | xs->data = data_addr; | |
1225 | xs->datalen = datalen; | |
1226 | xs->resid = datalen; | |
1227 | xs->when_done = sd_done; | |
1228 | xs->done_arg = unit; | |
1229 | xs->done_arg2 = (int)xs; | |
1230 | xs->bp = bp; | |
1231 | retry: xs->error = XS_NOERROR; | |
15637ed4 | 1232 | |
78ed81a3 | 1233 | /*******************************************************\ |
1234 | * Do the transfer. If we are polling we will return: * | |
1235 | * COMPLETE, Was poll, and sd_done has been called * | |
1236 | * HAD_ERROR, Was poll and an error was encountered * | |
1237 | * TRY_AGAIN_LATER, Adapter short resources, try again * | |
1238 | * * | |
1239 | * if under full steam (interrupts) it will return: * | |
1240 | * SUCCESSFULLY_QUEUED, will do a wakeup when complete * | |
1241 | * HAD_ERROR, had an erro before it could queue * | |
1242 | * TRY_AGAIN_LATER, (as for polling) * | |
1243 | * After the wakeup, we must still check if it succeeded * | |
1244 | * * | |
1245 | * If we have a bp however, all the error proccessing * | |
1246 | * and the buffer code both expect us to return straight * | |
1247 | * to them, so as soon as the command is queued, return * | |
1248 | \*******************************************************/ | |
1249 | retval = (*(sd->sc_sw->scsi_cmd))(xs); | |
1250 | if(bp) return retval; /* will sleep (or not) elsewhere */ | |
1251 | ||
1252 | /*******************************************************\ | |
1253 | * Only here for non I/O cmds. It's cheaper to process * | |
1254 | * the error status here than at interrupt time so * | |
1255 | * sd_done will have done nothing except wake us up. * | |
1256 | \*******************************************************/ | |
1257 | switch(retval) | |
1258 | { | |
1259 | case SUCCESSFULLY_QUEUED: | |
1260 | s = splbio(); | |
1261 | while(!(xs->flags & ITSDONE)) | |
1262 | sleep(xs,PRIBIO+1); | |
1263 | splx(s); | |
1264 | /* fall through to check success of completed command */ | |
1265 | ||
1266 | case HAD_ERROR: | |
1267 | switch(xs->error) | |
1268 | { | |
1269 | case XS_NOERROR: /* nearly always hit this one */ | |
15637ed4 RG |
1270 | retval = ESUCCESS; |
1271 | break; | |
78ed81a3 | 1272 | |
1273 | case XS_SENSE: | |
1274 | retval = (sd_interpret_sense(unit,xs)); | |
1275 | break; | |
1276 | case XS_BUSY: | |
1277 | /* should sleep 1 sec here */ | |
1278 | case XS_TIMEOUT: | |
15637ed4 RG |
1279 | if(xs->retries-- ) |
1280 | { | |
1281 | xs->flags &= ~ITSDONE; | |
1282 | goto retry; | |
1283 | } | |
78ed81a3 | 1284 | case XS_DRIVER_STUFFUP: |
15637ed4 RG |
1285 | retval = EIO; |
1286 | break; | |
1287 | default: | |
1288 | retval = EIO; | |
78ed81a3 | 1289 | printf("sd%d: unknown error category from scsi driver\n" |
1290 | ,unit); | |
1291 | } | |
1292 | break; | |
1293 | case COMPLETE: /* Polling command completed ok */ | |
1294 | retval = ESUCCESS; | |
1295 | break; | |
1296 | ||
1297 | case TRY_AGAIN_LATER: /* adapter resource shortage */ | |
1298 | /* should sleep 1 sec here */ | |
1299 | if(xs->retries-- ) | |
1300 | { | |
1301 | xs->flags &= ~ITSDONE; | |
1302 | goto retry; | |
15637ed4 | 1303 | } |
78ed81a3 | 1304 | default: |
1305 | retval = EIO; | |
15637ed4 | 1306 | } |
78ed81a3 | 1307 | /*******************************************************\ |
1308 | * we have finished with the xfer stuct, free it and * | |
1309 | * check if anyone else needs to be started up. * | |
1310 | \*******************************************************/ | |
1311 | sd_free_xs(unit,xs,flags); | |
1312 | sdstart(unit); /* check queue */ | |
15637ed4 RG |
1313 | return(retval); |
1314 | } | |
78ed81a3 | 1315 | |
15637ed4 RG |
1316 | /***************************************************************\ |
1317 | * Look at the returned sense and act on the error and detirmine * | |
1318 | * The unix error number to pass back... (0 = report no error) * | |
1319 | \***************************************************************/ | |
1320 | ||
1321 | int sd_interpret_sense(unit,xs) | |
1322 | int unit; | |
1323 | struct scsi_xfer *xs; | |
1324 | { | |
1325 | struct scsi_sense_data *sense; | |
1326 | int key; | |
1327 | int silent; | |
78ed81a3 | 1328 | long int info; |
15637ed4 RG |
1329 | |
1330 | /***************************************************************\ | |
1331 | * If the flags say errs are ok, then always return ok. * | |
1332 | \***************************************************************/ | |
1333 | if (xs->flags & SCSI_ERR_OK) return(ESUCCESS); | |
1334 | silent = (xs->flags & SCSI_SILENT); | |
1335 | ||
1336 | sense = &(xs->sense); | |
78ed81a3 | 1337 | info = ((sense->ext.extended.info[0] <<24)| |
1338 | (sense->ext.extended.info[1] <<16)| | |
1339 | (sense->ext.extended.info[2] <<8)| | |
1340 | (sense->ext.extended.info[3] )); | |
1341 | switch(sense->error_code & SSD_ERRCODE) | |
15637ed4 | 1342 | { |
78ed81a3 | 1343 | case 0x70: |
15637ed4 | 1344 | { |
78ed81a3 | 1345 | key=sense->ext.extended.flags & SSD_KEY; |
15637ed4 RG |
1346 | switch(key) |
1347 | { | |
1348 | case 0x0: | |
1349 | return(ESUCCESS); | |
1350 | case 0x1: | |
1351 | if(!silent) | |
1352 | { | |
1353 | printf("sd%d: soft error(corrected) ", unit); | |
78ed81a3 | 1354 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1355 | { |
78ed81a3 | 1356 | printf("block no. %d (decimal)",info); |
15637ed4 RG |
1357 | } |
1358 | printf("\n"); | |
1359 | } | |
1360 | return(ESUCCESS); | |
1361 | case 0x2: | |
1362 | if(!silent)printf("sd%d: not ready\n ", | |
1363 | unit); | |
1364 | return(ENODEV); | |
1365 | case 0x3: | |
1366 | if(!silent) | |
1367 | { | |
1368 | printf("sd%d: medium error ", unit); | |
78ed81a3 | 1369 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1370 | { |
78ed81a3 | 1371 | printf("block no. %d (decimal)",info); |
15637ed4 RG |
1372 | } |
1373 | printf("\n"); | |
1374 | } | |
1375 | return(EIO); | |
1376 | case 0x4: | |
1377 | if(!silent)printf("sd%d: non-media hardware failure\n ", | |
1378 | unit); | |
1379 | return(EIO); | |
1380 | case 0x5: | |
1381 | if(!silent)printf("sd%d: illegal request\n ", | |
1382 | unit); | |
1383 | return(EINVAL); | |
1384 | case 0x6: | |
1385 | /***********************************************\ | |
1386 | * If we are not open, then this is not an error * | |
1387 | * as we don't have state yet. Either way, make * | |
1388 | * sure that we don't have any residual state * | |
1389 | \***********************************************/ | |
1390 | if(!silent)printf("sd%d: Unit attention.\n ", unit); | |
78ed81a3 | 1391 | sd_data[unit]->flags &= ~(SDVALID | SDHAVELABEL); |
1392 | if (sd_data[unit]->openparts) | |
15637ed4 RG |
1393 | { |
1394 | return(EIO); | |
1395 | } | |
1396 | return(ESUCCESS); /* not an error if nothing's open */ | |
1397 | case 0x7: | |
1398 | if(!silent) | |
1399 | { | |
1400 | printf("sd%d: attempted protection violation ", | |
1401 | unit); | |
78ed81a3 | 1402 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1403 | { |
78ed81a3 | 1404 | printf("block no. %d (decimal)\n",info); |
15637ed4 RG |
1405 | } |
1406 | printf("\n"); | |
1407 | } | |
1408 | return(EACCES); | |
1409 | case 0x8: | |
1410 | if(!silent) | |
1411 | { | |
78ed81a3 | 1412 | printf("sd%d: block wrong state (format?)\n ", |
15637ed4 | 1413 | unit); |
78ed81a3 | 1414 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1415 | { |
78ed81a3 | 1416 | printf("block no. %d (decimal)\n",info); |
15637ed4 RG |
1417 | } |
1418 | printf("\n"); | |
1419 | } | |
1420 | return(EIO); | |
1421 | case 0x9: | |
1422 | if(!silent)printf("sd%d: vendor unique\n", | |
1423 | unit); | |
1424 | return(EIO); | |
1425 | case 0xa: | |
1426 | if(!silent)printf("sd%d: copy aborted\n ", | |
1427 | unit); | |
1428 | return(EIO); | |
1429 | case 0xb: | |
1430 | if(!silent)printf("sd%d: command aborted\n ", | |
1431 | unit); | |
1432 | return(EIO); | |
1433 | case 0xc: | |
1434 | if(!silent) | |
1435 | { | |
1436 | printf("sd%d: search returned\n ", | |
1437 | unit); | |
78ed81a3 | 1438 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1439 | { |
78ed81a3 | 1440 | printf("block no. %d (decimal)\n",info); |
15637ed4 RG |
1441 | } |
1442 | printf("\n"); | |
1443 | } | |
1444 | return(ESUCCESS); | |
1445 | case 0xd: | |
1446 | if(!silent)printf("sd%d: volume overflow\n ", | |
1447 | unit); | |
1448 | return(ENOSPC); | |
1449 | case 0xe: | |
1450 | if(!silent) | |
1451 | { | |
1452 | printf("sd%d: verify miscompare\n ", | |
1453 | unit); | |
78ed81a3 | 1454 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 | 1455 | { |
78ed81a3 | 1456 | printf("block no. %d (decimal)\n",info); |
15637ed4 RG |
1457 | } |
1458 | printf("\n"); | |
1459 | } | |
1460 | return(EIO); | |
1461 | case 0xf: | |
1462 | if(!silent)printf("sd%d: unknown error key\n ", | |
1463 | unit); | |
1464 | return(EIO); | |
1465 | } | |
1466 | break; | |
1467 | } | |
78ed81a3 | 1468 | default: |
15637ed4 | 1469 | { |
78ed81a3 | 1470 | if(!silent)printf("sd%d: code %d\n", |
15637ed4 | 1471 | unit, |
78ed81a3 | 1472 | sense->error_code & SSD_ERRCODE); |
1473 | if(sense->error_code & SSD_ERRCODE_VALID) | |
15637ed4 RG |
1474 | if(!silent)printf("block no. %d (decimal)\n", |
1475 | (sense->ext.unextended.blockhi <<16) | |
1476 | + (sense->ext.unextended.blockmed <<8) | |
1477 | + (sense->ext.unextended.blocklow )); | |
1478 | } | |
1479 | return(EIO); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | ||
1484 | ||
1485 | ||
1486 | int | |
1487 | sdsize(dev_t dev) | |
1488 | { | |
1489 | int unit = UNIT(dev), part = PARTITION(dev), val; | |
1490 | struct sd_data *sd; | |
1491 | ||
1492 | if (unit >= NSD) | |
1493 | return(-1); | |
1494 | ||
78ed81a3 | 1495 | sd = sd_data[unit]; |
1496 | if(!sd) return(-1); | |
15637ed4 RG |
1497 | if((sd->flags & SDINIT) == 0) return(-1); |
1498 | if (sd == 0 || (sd->flags & SDHAVELABEL) == 0) | |
1499 | val = sdopen (MAKESDDEV(major(dev), unit, RAW_PART), FREAD, S_IFBLK, 0); | |
1500 | if ( val != 0 || sd->flags & SDWRITEPROT) | |
1501 | return (-1); | |
1502 | ||
1503 | return((int)sd->disklabel.d_partitions[part].p_size); | |
1504 | } | |
78ed81a3 | 1505 | /*#define SCSIDUMP*/ |
1506 | #ifdef SCSIDUMP | |
1507 | #include <vm/vm.h> | |
1508 | /***********************************************************************\ | |
1509 | * dump all of physical memory into the partition specified, starting * | |
1510 | * at offset 'dumplo' into the partition. * | |
1511 | \***********************************************************************/ | |
1512 | static struct scsi_xfer sx; | |
1513 | #define MAXTRANSFER 8 /* 1 page at a time */ | |
1514 | int | |
1515 | sddump(dev_t dev) /* dump core after a system crash */ | |
15637ed4 | 1516 | { |
78ed81a3 | 1517 | register struct sd_data *sd; /* disk unit to do the IO */ |
1518 | long num; /* number of sectors to write */ | |
1519 | int unit, part, sdc; | |
1520 | long blkoff, blknum, blkcnt; | |
1521 | long nblocks; | |
1522 | char *addr; | |
1523 | struct scsi_rw_big cmd; | |
1524 | extern int Maxmem; | |
1525 | static sddoingadump = 0 ; | |
1526 | extern caddr_t CADDR1; /* map the page we are about to write, here*/ | |
1527 | struct scsi_xfer *xs = &sx; | |
1528 | int retval; | |
1529 | ||
1530 | addr = (char *) 0; /* starting address */ | |
1531 | ||
1532 | /* toss any characters present prior to dump */ | |
1533 | while (sgetc(1)) | |
1534 | ; | |
1535 | ||
1536 | /* size of memory to dump */ | |
1537 | num = Maxmem; | |
1538 | unit = UNIT(dev); /* eventually support floppies? */ | |
1539 | part = PARTITION(dev); /* file system */ | |
1540 | /* check for acceptable drive number */ | |
1541 | if (unit >= NSD) return(ENXIO); /* 31 Jul 92*/ | |
1542 | ||
1543 | sd = sd_data[unit]; | |
1544 | if(!sd) return (ENXIO); | |
1545 | /* was it ever initialized etc. ? */ | |
1546 | if (!(sd->flags & SDINIT)) return (ENXIO); | |
1547 | if (sd->flags & SDVALID != SDVALID) return (ENXIO) ; | |
1548 | if (sd->flags & SDWRITEPROT) return (ENXIO); | |
15637ed4 | 1549 | |
78ed81a3 | 1550 | /* Convert to disk sectors */ |
1551 | num = (u_long) num * NBPG / sd->disklabel.d_secsize; | |
15637ed4 | 1552 | |
78ed81a3 | 1553 | /* check if controller active */ |
1554 | if (sddoingadump) return(EFAULT); | |
15637ed4 | 1555 | |
78ed81a3 | 1556 | nblocks = sd->disklabel.d_partitions[part].p_size; |
1557 | blkoff = sd->disklabel.d_partitions[part].p_offset; | |
15637ed4 | 1558 | |
78ed81a3 | 1559 | /* check transfer bounds against partition size */ |
1560 | if ((dumplo < 0) || ((dumplo + num) > nblocks)) | |
1561 | return(EINVAL); | |
1562 | ||
1563 | sddoingadump = 1 ; | |
1564 | ||
1565 | blknum = dumplo + blkoff; | |
1566 | while (num > 0) | |
1567 | { | |
1568 | if (blkcnt > MAXTRANSFER) blkcnt = MAXTRANSFER; | |
1569 | pmap_enter( kernel_pmap, | |
1570 | CADDR1, | |
1571 | trunc_page(addr), | |
1572 | VM_PROT_READ, | |
1573 | TRUE); | |
1574 | #ifndef NOT_TRUSTED | |
1575 | /*******************************************************\ | |
1576 | * Fill out the scsi command * | |
1577 | \*******************************************************/ | |
1578 | bzero(&cmd, sizeof(cmd)); | |
1579 | cmd.op_code = WRITE_BIG; | |
1580 | cmd.addr_3 = (blknum & 0xff000000) >> 24; | |
1581 | cmd.addr_2 = (blknum & 0xff0000) >> 16; | |
1582 | cmd.addr_1 = (blknum & 0xff00) >> 8; | |
1583 | cmd.addr_0 = blknum & 0xff; | |
1584 | cmd.length2 = (blkcnt & 0xff00) >> 8; | |
1585 | cmd.length1 = (blkcnt & 0xff); | |
1586 | /*******************************************************\ | |
1587 | * Fill out the scsi_xfer structure * | |
1588 | * Note: we cannot sleep as we may be an interrupt * | |
1589 | \*******************************************************/ | |
1590 | bzero(xs, sizeof(sx)); | |
1591 | xs->flags |= SCSI_NOMASK|SCSI_NOSLEEP|INUSE; | |
1592 | xs->adapter = sd->ctlr; | |
1593 | xs->targ = sd->targ; | |
1594 | xs->lu = sd->lu; | |
1595 | xs->retries = SD_RETRIES; | |
1596 | xs->timeout = 10000;/* 10000 millisecs for a disk !*/ | |
1597 | xs->cmd = (struct scsi_generic *)&cmd; | |
1598 | xs->cmdlen = sizeof(cmd); | |
1599 | xs->resid = blkcnt * 512; | |
1600 | xs->when_done = 0; | |
1601 | xs->done_arg = unit; | |
1602 | xs->done_arg2 = (int)xs; | |
1603 | xs->error = XS_NOERROR; | |
1604 | xs->bp = 0; | |
1605 | xs->data = (u_char *)CADDR1; | |
1606 | xs->datalen = blkcnt * 512; | |
1607 | ||
1608 | /*******************************************************\ | |
1609 | * Pass all this info to the scsi driver. * | |
1610 | \*******************************************************/ | |
1611 | retval = (*(sd->sc_sw->scsi_cmd))(xs); | |
1612 | switch(retval) | |
1613 | { | |
1614 | case SUCCESSFULLY_QUEUED: | |
1615 | case HAD_ERROR: | |
1616 | return(ENXIO); /* we said not to sleep! */ | |
1617 | case COMPLETE: | |
1618 | break; | |
1619 | default: | |
1620 | return(ENXIO); /* we said not to sleep! */ | |
1621 | } | |
1622 | #else NOT_TRUSTED | |
1623 | /* lets just talk about this first...*/ | |
1624 | printf ("sd%d: dump addr 0x%x, blk %d\n",unit,addr,blknum); | |
1625 | #endif NOT_TRUSTED | |
1626 | ||
1627 | if ((unsigned)addr % (1024*1024) == 0) printf("%d ", num/2048) ; | |
1628 | /* update block count */ | |
1629 | num -= MAXTRANSFER; | |
1630 | blknum += MAXTRANSFER ; | |
1631 | (int) addr += 512 * MAXTRANSFER; | |
1632 | ||
1633 | /* operator aborting dump? */ | |
1634 | if (sgetc(1)) | |
1635 | return(EINTR); | |
1636 | } | |
1637 | return(0); | |
1638 | } | |
1639 | #else SCSIDUMP | |
1640 | sddump() | |
1641 | { | |
1642 | printf("\nsddump() -- not implemented\n"); | |
1643 | DELAY(20000000); /* 20 seconds */ | |
1644 | return(-1); | |
1645 | } | |
1646 | #endif SCSIDUMP | |
15637ed4 | 1647 |