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15637ed4 RG |
1 | /* |
2 | * Written by Julian Elischer (julian@tfs.com) | |
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 | * | |
869c4419 RG |
15 | * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE |
16 | * -------------------- ----- ---------------------- | |
17 | * CURRENT PATCH LEVEL: 1 00098 | |
18 | * -------------------- ----- ---------------------- | |
19 | * | |
20 | * 16 Feb 93 Julian Elischer ADDED for SCSI system | |
21 | * | |
15637ed4 RG |
22 | */ |
23 | ||
869c4419 | 24 | static char rev[] = "$Revision: 1.5 $"; |
15637ed4 RG |
25 | |
26 | /* | |
27 | * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 | |
28 | */ | |
29 | ||
30 | #define SPLSD splbio | |
31 | #define ESUCCESS 0 | |
32 | #include <sd.h> | |
33 | #include <sys/types.h> | |
34 | #include <sys/param.h> | |
35 | #include <sys/dkbad.h> | |
36 | #include <sys/systm.h> | |
37 | #include <sys/conf.h> | |
38 | #include <sys/file.h> | |
39 | #include <sys/stat.h> | |
40 | #include <sys/ioctl.h> | |
41 | #include <sys/buf.h> | |
42 | #include <sys/uio.h> | |
43 | #include <sys/malloc.h> | |
44 | #include <sys/errno.h> | |
45 | #include <sys/disklabel.h> | |
46 | #include <scsi/scsi_all.h> | |
47 | #include <scsi/scsi_disk.h> | |
48 | #include <scsi/scsiconf.h> | |
49 | ||
50 | long int sdstrats,sdqueues; | |
51 | ||
52 | ||
53 | #include <ddb.h> | |
54 | #if NDDB > 0 | |
55 | int Debugger(); | |
56 | #else NDDB > 0 | |
57 | #define Debugger() | |
58 | #endif NDDB > 0 | |
59 | ||
60 | ||
61 | #define PAGESIZ 4096 | |
62 | #define SECSIZE 512 | |
63 | #define PDLOCATION 29 | |
64 | #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) | |
65 | #define SDOUTSTANDING 2 | |
66 | #define SDQSIZE 4 | |
67 | #define SD_RETRIES 4 | |
68 | ||
69 | #define MAKESDDEV(maj, unit, part) (makedev(maj,((unit<<3)+part))) | |
70 | #define UNITSHIFT 3 | |
71 | #define PARTITION(z) (minor(z) & 0x07) | |
72 | #define RAW_PART 3 | |
73 | #define UNIT(z) ( (minor(z) >> UNITSHIFT) ) | |
74 | ||
75 | #define WHOLE_DISK(unit) ( (unit << UNITSHIFT) + RAW_PART ) | |
76 | ||
77 | struct buf sd_buf_queue[NSD]; | |
78 | int sd_done(); | |
79 | int sdstrategy(); | |
80 | ||
81 | int sd_debug = 0; | |
82 | ||
83 | struct scsi_xfer *sd_free_xfer[NSD]; | |
84 | int sd_xfer_block_wait[NSD]; | |
85 | ||
86 | struct sd_data | |
87 | { | |
88 | int flags; | |
89 | #define SDVALID 0x02 /* PARAMS LOADED */ | |
90 | #define SDINIT 0x04 /* device has been init'd */ | |
91 | #define SDWAIT 0x08 /* device has someone waiting */ | |
92 | #define SDHAVELABEL 0x10 /* have read the label */ | |
93 | #define SDDOSPART 0x20 /* Have read the DOS partition table */ | |
94 | #define SDWRITEPROT 0x40 /* Device in readonly mode (S/W)*/ | |
95 | struct scsi_switch *sc_sw; /* address of scsi low level switch */ | |
96 | int ctlr; /* so they know which one we want */ | |
97 | int targ; /* our scsi target ID */ | |
98 | int lu; /* out scsi lu */ | |
99 | long int ad_info; /* info about the adapter */ | |
100 | int cmdscount; /* cmds allowed outstanding by board*/ | |
101 | int wlabel; /* label is writable */ | |
102 | struct disk_parms | |
103 | { | |
104 | u_char heads; /* Number of heads */ | |
105 | u_short cyls; /* Number of cylinders */ | |
106 | u_char sectors;/*dubious*/ /* Number of sectors/track */ | |
107 | u_short secsiz; /* Number of bytes/sector */ | |
108 | u_long disksize; /* total number sectors */ | |
109 | }params; | |
110 | struct disklabel disklabel; | |
111 | struct dos_partition dosparts[NDOSPART]; /* DOS view of disk */ | |
112 | int partflags[MAXPARTITIONS]; /* per partition flags */ | |
113 | #define SDOPEN 0x01 | |
114 | int openparts; /* one bit for each open partition */ | |
115 | unsigned int sd_start_of_unix; /* unix vs dos partitions */ | |
116 | }sd_data[NSD]; | |
117 | ||
118 | ||
119 | static int next_sd_unit = 0; | |
120 | /***********************************************************************\ | |
121 | * The routine called by the low level scsi routine when it discovers * | |
122 | * A device suitable for this driver * | |
123 | \***********************************************************************/ | |
124 | ||
125 | int sdattach(ctlr,targ,lu,scsi_switch) | |
126 | struct scsi_switch *scsi_switch; | |
127 | { | |
128 | int unit,i; | |
129 | unsigned char *tbl; | |
130 | struct sd_data *sd; | |
131 | struct disk_parms *dp; | |
132 | long int ad_info; | |
133 | struct scsi_xfer *sd_scsi_xfer; | |
134 | ||
135 | unit = next_sd_unit++; | |
136 | sd = sd_data + unit; | |
137 | dp = &(sd->params); | |
138 | if(scsi_debug & PRINTROUTINES) printf("sdattach: "); | |
139 | /*******************************************************\ | |
140 | * Check we have the resources for another drive * | |
141 | \*******************************************************/ | |
142 | if( unit >= NSD) | |
143 | { | |
869c4419 | 144 | printf("Too many scsi disks..(%d > %d) reconfigure kernel\n",(unit + 1),NSD); |
15637ed4 RG |
145 | return(0); |
146 | } | |
147 | /*******************************************************\ | |
148 | * Store information needed to contact our base driver * | |
149 | \*******************************************************/ | |
150 | sd->sc_sw = scsi_switch; | |
151 | sd->ctlr = ctlr; | |
152 | sd->targ = targ; | |
153 | sd->lu = lu; | |
154 | if(sd->sc_sw->adapter_info) | |
155 | { | |
156 | sd->ad_info = ( (*(sd->sc_sw->adapter_info))(ctlr)); | |
157 | sd->cmdscount = sd->ad_info & AD_INF_MAX_CMDS; | |
158 | if(sd->cmdscount > SDOUTSTANDING) | |
159 | { | |
160 | sd->cmdscount = SDOUTSTANDING; | |
161 | } | |
162 | } | |
163 | else | |
164 | { | |
165 | sd->ad_info = 1; | |
166 | sd->cmdscount = 1; | |
167 | } | |
168 | ||
169 | i = sd->cmdscount; | |
170 | sd_scsi_xfer = (struct scsi_xfer *)malloc(sizeof(struct scsi_xfer) * i | |
171 | ,M_TEMP, M_NOWAIT); | |
172 | while(i-- ) | |
173 | { | |
174 | sd_scsi_xfer->next = sd_free_xfer[unit]; | |
175 | sd_free_xfer[unit] = sd_scsi_xfer; | |
176 | sd_scsi_xfer++; | |
177 | } | |
178 | /*******************************************************\ | |
179 | * Use the subdriver to request information regarding * | |
180 | * the drive. We cannot use interrupts yet, so the * | |
181 | * request must specify this. * | |
182 | \*******************************************************/ | |
183 | sd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK); | |
869c4419 | 184 | printf(" sd%d: %dMB, cyls %d, heads %d, secs %d, bytes/sec %d\n", |
15637ed4 RG |
185 | unit, |
186 | ( dp->cyls | |
187 | * dp->heads | |
188 | * dp->sectors | |
189 | * dp->secsiz | |
190 | ) | |
191 | / (1024 * 1024), | |
192 | dp->cyls, | |
193 | dp->heads, | |
194 | dp->sectors, | |
195 | dp->secsiz); | |
196 | /*******************************************************\ | |
197 | * Set up the bufs for this device * | |
198 | \*******************************************************/ | |
199 | sd->flags |= SDINIT; | |
200 | return; | |
201 | ||
202 | } | |
203 | ||
204 | ||
205 | ||
206 | /*******************************************************\ | |
207 | * open the device. Make sure the partition info * | |
208 | * is a up-to-date as can be. * | |
209 | \*******************************************************/ | |
210 | sdopen(dev) | |
211 | { | |
212 | int errcode = 0; | |
213 | int unit, part; | |
214 | struct disk_parms disk_parms; | |
215 | struct sd_data *sd ; | |
216 | ||
217 | unit = UNIT(dev); | |
218 | part = PARTITION(dev); | |
219 | sd = sd_data + unit; | |
220 | if(scsi_debug & (PRINTROUTINES | TRACEOPENS)) | |
221 | printf("sdopen: dev=0x%x (unit %d (of %d),partition %d)\n" | |
222 | , dev, unit, NSD, part); | |
223 | /*******************************************************\ | |
224 | * Check the unit is legal * | |
225 | \*******************************************************/ | |
226 | if ( unit >= NSD ) | |
227 | { | |
228 | return(ENXIO); | |
229 | } | |
230 | /*******************************************************\ | |
231 | * Make sure the disk has been initialised * | |
232 | * At some point in the future, get the scsi driver * | |
233 | * to look for a new device if we are not initted * | |
234 | \*******************************************************/ | |
235 | if (! (sd->flags & SDINIT)) | |
236 | { | |
237 | return(ENXIO); | |
238 | } | |
239 | ||
240 | /*******************************************************\ | |
241 | * If it's been invalidated, and not everybody has * | |
242 | * closed it then forbid re-entry. * | |
243 | \*******************************************************/ | |
244 | if ((! (sd->flags & SDVALID)) | |
245 | && ( sd->openparts)) | |
246 | return(ENXIO); | |
247 | /*******************************************************\ | |
248 | * Check that it is still responding and ok. * | |
249 | * "unit attention errors should occur here if the drive * | |
250 | * has been restarted or the pack changed * | |
251 | \*******************************************************/ | |
252 | ||
253 | if(scsi_debug & TRACEOPENS) | |
254 | printf("device is "); | |
255 | if (sd_test_unit_ready(unit,0)) | |
256 | { | |
257 | if(scsi_debug & TRACEOPENS) printf("not reponding\n"); | |
258 | return(ENXIO); | |
259 | } | |
260 | if(scsi_debug & TRACEOPENS) | |
261 | printf("ok\n"); | |
262 | /*******************************************************\ | |
263 | * In case it is a funny one, tell it to start * | |
264 | * not needed for most hard drives (ignore failure) * | |
265 | \*******************************************************/ | |
266 | sd_start_unit(unit,SCSI_ERR_OK|SCSI_SILENT); | |
267 | if(scsi_debug & TRACEOPENS) | |
268 | printf("started "); | |
269 | /*******************************************************\ | |
270 | * Load the physical device parameters * | |
271 | \*******************************************************/ | |
272 | sd_get_parms(unit, 0); /* sets SDVALID */ | |
273 | if (sd->params.secsiz != SECSIZE) | |
274 | { | |
275 | printf("sd%d: Can't deal with %d bytes logical blocks\n" | |
276 | ,unit, sd->params.secsiz); | |
277 | Debugger(); | |
278 | return(ENXIO); | |
279 | } | |
280 | if(scsi_debug & TRACEOPENS) | |
281 | printf("Params loaded "); | |
282 | /*******************************************************\ | |
283 | * Load the partition info if not already loaded * | |
284 | \*******************************************************/ | |
285 | sd_prevent(unit,PR_PREVENT,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
286 | if((errcode = sdgetdisklabel(unit)) && (part != RAW_PART)) | |
287 | { | |
288 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
289 | return(errcode); | |
290 | } | |
291 | if(scsi_debug & TRACEOPENS) | |
292 | printf("Disklabel loaded "); | |
293 | /*******************************************************\ | |
294 | * Check the partition is legal * | |
295 | \*******************************************************/ | |
296 | if ( part >= MAXPARTITIONS ) { | |
297 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
298 | return(ENXIO); | |
299 | } | |
300 | if(scsi_debug & TRACEOPENS) | |
301 | printf("ok"); | |
302 | /*******************************************************\ | |
303 | * Check that the partition exists * | |
304 | \*******************************************************/ | |
305 | if (( sd->disklabel.d_partitions[part].p_size == 0 ) | |
306 | && (part != RAW_PART)) | |
307 | { | |
308 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); /* who cares if it fails? */ | |
309 | return(ENXIO); | |
310 | } | |
311 | sd->partflags[part] |= SDOPEN; | |
312 | sd->openparts |= (1 << part); | |
313 | if(scsi_debug & TRACEOPENS) | |
314 | printf("open %d %d\n",sdstrats,sdqueues); | |
315 | return(0); | |
316 | } | |
317 | ||
318 | /*******************************************************\ | |
319 | * Get ownership of a scsi_xfer * | |
320 | * If need be, sleep on it, until it comes free * | |
321 | \*******************************************************/ | |
322 | struct scsi_xfer *sd_get_xs(unit,flags) | |
323 | int flags; | |
324 | int unit; | |
325 | { | |
326 | struct scsi_xfer *xs; | |
327 | int s; | |
328 | ||
329 | if(flags & (SCSI_NOSLEEP | SCSI_NOMASK)) | |
330 | { | |
331 | if (xs = sd_free_xfer[unit]) | |
332 | { | |
333 | sd_free_xfer[unit] = xs->next; | |
334 | xs->flags = 0; | |
335 | } | |
336 | } | |
337 | else | |
338 | { | |
339 | s = SPLSD(); | |
340 | while (!(xs = sd_free_xfer[unit])) | |
341 | { | |
342 | sd_xfer_block_wait[unit]++; /* someone waiting! */ | |
343 | sleep((caddr_t)&sd_free_xfer[unit], PRIBIO+1); | |
344 | sd_xfer_block_wait[unit]--; | |
345 | } | |
346 | sd_free_xfer[unit] = xs->next; | |
347 | splx(s); | |
348 | xs->flags = 0; | |
349 | } | |
350 | return(xs); | |
351 | } | |
352 | ||
353 | /*******************************************************\ | |
354 | * Free a scsi_xfer, wake processes waiting for it * | |
355 | \*******************************************************/ | |
356 | sd_free_xs(unit,xs,flags) | |
357 | struct scsi_xfer *xs; | |
358 | int unit; | |
359 | int flags; | |
360 | { | |
361 | int s; | |
362 | ||
363 | if(flags & SCSI_NOMASK) | |
364 | { | |
365 | if (sd_xfer_block_wait[unit]) | |
366 | { | |
367 | printf("doing a wakeup from NOMASK mode\n"); | |
368 | wakeup((caddr_t)&sd_free_xfer[unit]); | |
369 | } | |
370 | xs->next = sd_free_xfer[unit]; | |
371 | sd_free_xfer[unit] = xs; | |
372 | } | |
373 | else | |
374 | { | |
375 | s = SPLSD(); | |
376 | if (sd_xfer_block_wait[unit]) | |
377 | wakeup((caddr_t)&sd_free_xfer[unit]); | |
378 | xs->next = sd_free_xfer[unit]; | |
379 | sd_free_xfer[unit] = xs; | |
380 | splx(s); | |
381 | } | |
382 | } | |
383 | ||
384 | /*******************************************************\ | |
385 | * trim the size of the transfer if needed, * | |
386 | * called by physio * | |
387 | * basically the smaller of our max and the scsi driver's* | |
388 | * minphys (note we have no max) * | |
389 | \*******************************************************/ | |
390 | /* Trim buffer length if buffer-size is bigger than page size */ | |
391 | void sdminphys(bp) | |
392 | struct buf *bp; | |
393 | { | |
394 | (*(sd_data[UNIT(bp->b_dev)].sc_sw->scsi_minphys))(bp); | |
395 | } | |
396 | ||
397 | /*******************************************************\ | |
398 | * Actually translate the requested transfer into * | |
399 | * one the physical driver can understand * | |
400 | * The transfer is described by a buf and will include * | |
401 | * only one physical transfer. * | |
402 | \*******************************************************/ | |
403 | ||
404 | int sdstrategy(bp) | |
405 | struct buf *bp; | |
406 | { | |
407 | struct buf *dp; | |
408 | unsigned int opri; | |
409 | struct sd_data *sd ; | |
410 | int unit; | |
411 | ||
412 | sdstrats++; | |
413 | unit = UNIT((bp->b_dev)); | |
414 | sd = sd_data + unit; | |
415 | if(scsi_debug & PRINTROUTINES) printf("\nsdstrategy "); | |
416 | if(scsi_debug & SHOWREQUESTS) printf("sd%d: %d bytes @ blk%d\n", | |
417 | unit,bp->b_bcount,bp->b_blkno); | |
418 | sdminphys(bp); | |
419 | /*******************************************************\ | |
420 | * If the device has been made invalid, error out * | |
421 | \*******************************************************/ | |
422 | if(!(sd->flags & SDVALID)) | |
423 | { | |
424 | bp->b_error = EIO; | |
425 | goto bad; | |
426 | } | |
427 | /*******************************************************\ | |
428 | * "soft" write protect check * | |
429 | \*******************************************************/ | |
430 | if ((sd->flags & SDWRITEPROT) && (bp->b_flags & B_READ) == 0) { | |
431 | bp->b_error = EROFS; | |
432 | goto bad; | |
433 | } | |
434 | /*******************************************************\ | |
435 | * If it's a null transfer, return immediatly * | |
436 | \*******************************************************/ | |
437 | if (bp->b_bcount == 0) | |
438 | { | |
439 | goto done; | |
440 | } | |
441 | ||
442 | /*******************************************************\ | |
443 | * Decide which unit and partition we are talking about * | |
444 | * only raw is ok if no label * | |
445 | \*******************************************************/ | |
446 | if(PARTITION(bp->b_dev) != RAW_PART) | |
447 | { | |
448 | if (!(sd->flags & SDHAVELABEL)) | |
449 | { | |
450 | bp->b_error = EIO; | |
451 | goto bad; | |
452 | } | |
453 | ||
454 | /* | |
455 | * do bounds checking, adjust transfer. if error, process. | |
456 | * if end of partition, just return | |
457 | */ | |
458 | if (bounds_check_with_label(bp,&sd->disklabel,sd->wlabel) <= 0) | |
459 | goto done; | |
460 | /* otherwise, process transfer request */ | |
461 | } | |
462 | ||
463 | opri = SPLSD(); | |
464 | dp = &sd_buf_queue[unit]; | |
465 | ||
466 | /*******************************************************\ | |
467 | * Place it in the queue of disk activities for this disk* | |
468 | \*******************************************************/ | |
469 | disksort(dp, bp); | |
470 | ||
471 | /*******************************************************\ | |
472 | * Tell the device to get going on the transfer if it's * | |
473 | * not doing anything, otherwise just wait for completion* | |
474 | \*******************************************************/ | |
475 | sdstart(unit); | |
476 | ||
477 | splx(opri); | |
478 | return; | |
479 | bad: | |
480 | bp->b_flags |= B_ERROR; | |
481 | done: | |
482 | ||
483 | /*******************************************************\ | |
484 | * Correctly set the buf to indicate a completed xfer * | |
485 | \*******************************************************/ | |
486 | bp->b_resid = bp->b_bcount; | |
487 | biodone(bp); | |
488 | return; | |
489 | } | |
490 | ||
491 | /***************************************************************\ | |
492 | * sdstart looks to see if there is a buf waiting for the device * | |
493 | * and that the device is not already busy. If both are true, * | |
494 | * It deques the buf and creates a scsi command to perform the * | |
495 | * transfer in the buf. The transfer request will call sd_done * | |
496 | * on completion, which will in turn call this routine again * | |
497 | * so that the next queued transfer is performed. * | |
498 | * The bufs are queued by the strategy routine (sdstrategy) * | |
499 | * * | |
500 | * This routine is also called after other non-queued requests * | |
501 | * have been made of the scsi driver, to ensure that the queue * | |
502 | * continues to be drained. * | |
503 | * * | |
504 | * must be called at the correct (highish) spl level * | |
505 | \***************************************************************/ | |
506 | /* sdstart() is called at SPLSD from sdstrategy and sd_done*/ | |
507 | sdstart(unit) | |
508 | int unit; | |
509 | { | |
510 | int drivecount; | |
511 | register struct buf *bp = 0; | |
512 | register struct buf *dp; | |
513 | struct scsi_xfer *xs; | |
514 | struct scsi_rw_big cmd; | |
515 | int blkno, nblk; | |
516 | struct sd_data *sd = sd_data + unit; | |
517 | struct partition *p ; | |
518 | ||
519 | if(scsi_debug & PRINTROUTINES) printf("sdstart%d ",unit); | |
520 | /*******************************************************\ | |
521 | * See if there is a buf to do and we are not already * | |
522 | * doing one * | |
523 | \*******************************************************/ | |
524 | if(!sd_free_xfer[unit]) | |
525 | { | |
526 | return; /* none for us, unit already underway */ | |
527 | } | |
528 | ||
529 | if(sd_xfer_block_wait[unit]) /* there is one, but a special waits */ | |
530 | { | |
531 | return; /* give the special that's waiting a chance to run */ | |
532 | } | |
533 | ||
534 | ||
535 | dp = &sd_buf_queue[unit]; | |
536 | if ((bp = dp->b_actf) != NULL) /* yes, an assign */ | |
537 | { | |
538 | dp->b_actf = bp->av_forw; | |
539 | } | |
540 | else | |
541 | { | |
542 | return; | |
543 | } | |
544 | ||
545 | xs=sd_get_xs(unit,0); /* ok we can grab it */ | |
546 | xs->flags = INUSE; /* Now ours */ | |
547 | /*******************************************************\ | |
548 | * If the device has become invalid, abort all the * | |
549 | * reads and writes until all files have been closed and * | |
550 | * re-openned * | |
551 | \*******************************************************/ | |
552 | if(!(sd->flags & SDVALID)) | |
553 | { | |
554 | xs->error = XS_DRIVER_STUFFUP; | |
555 | sd_done(unit,xs); /* clean up (calls sdstart) */ | |
556 | return ; | |
557 | } | |
558 | /*******************************************************\ | |
559 | * We have a buf, now we should move the data into * | |
560 | * a scsi_xfer definition and try start it * | |
561 | \*******************************************************/ | |
562 | /*******************************************************\ | |
563 | * First, translate the block to absolute * | |
564 | \*******************************************************/ | |
565 | p = sd->disklabel.d_partitions + PARTITION(bp->b_dev); | |
566 | blkno = bp->b_blkno + p->p_offset; | |
567 | nblk = (bp->b_bcount + 511) >> 9; | |
568 | ||
569 | /*******************************************************\ | |
570 | * Fill out the scsi command * | |
571 | \*******************************************************/ | |
572 | bzero(&cmd, sizeof(cmd)); | |
573 | cmd.op_code = (bp->b_flags & B_READ) | |
574 | ? READ_BIG : WRITE_BIG; | |
575 | cmd.addr_3 = (blkno & 0xff000000) >> 24; | |
576 | cmd.addr_2 = (blkno & 0xff0000) >> 16; | |
577 | cmd.addr_1 = (blkno & 0xff00) >> 8; | |
578 | cmd.addr_0 = blkno & 0xff; | |
579 | cmd.length2 = (nblk & 0xff00) >> 8; | |
580 | cmd.length1 = (nblk & 0xff); | |
581 | /*******************************************************\ | |
582 | * Fill out the scsi_xfer structure * | |
583 | * Note: we cannot sleep as we may be an interrupt * | |
584 | \*******************************************************/ | |
585 | xs->flags |= SCSI_NOSLEEP; | |
586 | xs->adapter = sd->ctlr; | |
587 | xs->targ = sd->targ; | |
588 | xs->lu = sd->lu; | |
589 | xs->retries = SD_RETRIES; | |
590 | xs->timeout = 10000;/* 10000 millisecs for a disk !*/ | |
591 | xs->cmd = (struct scsi_generic *)&cmd; | |
592 | xs->cmdlen = sizeof(cmd); | |
593 | xs->resid = bp->b_bcount; | |
594 | xs->when_done = sd_done; | |
595 | xs->done_arg = unit; | |
596 | xs->done_arg2 = (int)xs; | |
597 | xs->error = XS_NOERROR; | |
598 | xs->bp = bp; | |
599 | xs->data = (u_char *)bp->b_un.b_addr; | |
600 | xs->datalen = bp->b_bcount; | |
601 | /*******************************************************\ | |
602 | * Pass all this info to the scsi driver. * | |
603 | \*******************************************************/ | |
604 | ||
605 | ||
606 | ||
607 | if ( (*(sd->sc_sw->scsi_cmd))(xs) != SUCCESSFULLY_QUEUED) | |
608 | { | |
609 | printf("sd%d: oops not queued",unit); | |
610 | xs->error = XS_DRIVER_STUFFUP; | |
611 | sd_done(unit,xs); /* clean up (calls sdstart) */ | |
612 | } | |
613 | sdqueues++; | |
614 | } | |
615 | ||
616 | /*******************************************************\ | |
617 | * This routine is called by the scsi interrupt when * | |
618 | * the transfer is complete. | |
619 | \*******************************************************/ | |
620 | int sd_done(unit,xs) | |
621 | int unit; | |
622 | struct scsi_xfer *xs; | |
623 | { | |
624 | struct buf *bp; | |
625 | int retval; | |
626 | int retries = 0; | |
627 | ||
628 | if(scsi_debug & PRINTROUTINES) printf("sd_done%d ",unit); | |
629 | if (! (xs->flags & INUSE)) | |
630 | panic("scsi_xfer not in use!"); | |
631 | if(bp = xs->bp) | |
632 | { | |
633 | switch(xs->error) | |
634 | { | |
635 | case XS_NOERROR: | |
636 | bp->b_error = 0; | |
637 | bp->b_resid = 0; | |
638 | break; | |
639 | ||
640 | case XS_SENSE: | |
641 | retval = (sd_interpret_sense(unit,xs)); | |
642 | if(retval) | |
643 | { | |
644 | bp->b_flags |= B_ERROR; | |
645 | bp->b_error = retval; | |
646 | } | |
647 | break; | |
648 | ||
649 | case XS_TIMEOUT: | |
650 | printf("sd%d timeout\n",unit); | |
651 | ||
652 | case XS_BUSY: /* should retry */ /* how? */ | |
653 | /************************************************/ | |
654 | /* SHOULD put buf back at head of queue */ | |
655 | /* and decrement retry count in (*xs) */ | |
656 | /* HOWEVER, this should work as a kludge */ | |
657 | /************************************************/ | |
658 | if(xs->retries--) | |
659 | { | |
660 | xs->error = XS_NOERROR; | |
661 | xs->flags &= ~ITSDONE; | |
662 | if ( (*(sd_data[unit].sc_sw->scsi_cmd))(xs) | |
663 | == SUCCESSFULLY_QUEUED) | |
664 | { /* don't wake the job, ok? */ | |
665 | return; | |
666 | } | |
667 | xs->flags |= ITSDONE; | |
668 | } /* fall through */ | |
669 | ||
670 | case XS_DRIVER_STUFFUP: | |
671 | bp->b_flags |= B_ERROR; | |
672 | bp->b_error = EIO; | |
673 | break; | |
674 | default: | |
675 | printf("sd%d: unknown error category from scsi driver\n" | |
676 | ,unit); | |
677 | } | |
678 | biodone(bp); | |
679 | sd_free_xs(unit,xs,0); | |
680 | sdstart(unit); /* If there's anything waiting.. do it */ | |
681 | } | |
682 | else /* special has finished */ | |
683 | { | |
684 | wakeup(xs); | |
685 | } | |
686 | } | |
687 | /*******************************************************\ | |
688 | * Perform special action on behalf of the user * | |
689 | * Knows about the internals of this device * | |
690 | \*******************************************************/ | |
691 | sdioctl(dev_t dev, int cmd, caddr_t addr, int flag) | |
692 | { | |
693 | /* struct sd_cmd_buf *args;*/ | |
694 | int error = 0; | |
695 | unsigned int opri; | |
696 | unsigned char unit, part; | |
697 | register struct sd_data *sd; | |
698 | ||
699 | ||
700 | /*******************************************************\ | |
701 | * Find the device that the user is talking about * | |
702 | \*******************************************************/ | |
703 | unit = UNIT(dev); | |
704 | part = PARTITION(dev); | |
705 | sd = &sd_data[unit]; | |
706 | if(scsi_debug & PRINTROUTINES) printf("sdioctl%d ",unit); | |
707 | ||
708 | /*******************************************************\ | |
709 | * If the device is not valid.. abandon ship * | |
710 | \*******************************************************/ | |
711 | if (!(sd_data[unit].flags & SDVALID)) | |
712 | return(EIO); | |
713 | switch(cmd) | |
714 | { | |
715 | ||
716 | case DIOCSBAD: | |
717 | error = EINVAL; | |
718 | break; | |
719 | ||
720 | case DIOCGDINFO: | |
721 | *(struct disklabel *)addr = sd->disklabel; | |
722 | break; | |
723 | ||
724 | case DIOCGPART: | |
725 | ((struct partinfo *)addr)->disklab = &sd->disklabel; | |
726 | ((struct partinfo *)addr)->part = | |
727 | &sd->disklabel.d_partitions[PARTITION(dev)]; | |
728 | break; | |
729 | ||
730 | case DIOCSDINFO: | |
731 | if ((flag & FWRITE) == 0) | |
732 | error = EBADF; | |
733 | else | |
734 | error = setdisklabel(&sd->disklabel, | |
735 | (struct disklabel *)addr, | |
736 | /*(sd->flags & DKFL_BSDLABEL) ? sd->openparts : */0, | |
737 | sd->dosparts); | |
738 | if (error == 0) { | |
739 | sd->flags |= SDHAVELABEL; | |
740 | } | |
741 | break; | |
742 | ||
743 | case DIOCWLABEL: | |
744 | sd->flags &= ~SDWRITEPROT; | |
745 | if ((flag & FWRITE) == 0) | |
746 | error = EBADF; | |
747 | else | |
748 | sd->wlabel = *(int *)addr; | |
749 | break; | |
750 | ||
751 | case DIOCWDINFO: | |
752 | sd->flags &= ~SDWRITEPROT; | |
753 | if ((flag & FWRITE) == 0) | |
754 | error = EBADF; | |
755 | else | |
756 | { | |
757 | if ((error = setdisklabel(&sd->disklabel | |
758 | , (struct disklabel *)addr | |
759 | , /*(sd->flags & SDHAVELABEL) ? sd->openparts :*/ 0 | |
760 | , sd->dosparts)) == 0) | |
761 | { | |
762 | int wlab; | |
763 | ||
764 | sd->flags |= SDHAVELABEL; /* ok write will succeed */ | |
765 | ||
766 | /* simulate opening partition 0 so write succeeds */ | |
767 | sd->openparts |= (1 << 0); /* XXX */ | |
768 | wlab = sd->wlabel; | |
769 | sd->wlabel = 1; | |
770 | error = writedisklabel(dev, sdstrategy, | |
771 | &sd->disklabel, sd->dosparts); | |
772 | sd->wlabel = wlab; | |
773 | } | |
774 | } | |
775 | break; | |
776 | ||
777 | ||
778 | default: | |
779 | error = ENOTTY; | |
780 | break; | |
781 | } | |
782 | return (error); | |
783 | } | |
784 | ||
785 | ||
786 | /*******************************************************\ | |
787 | * Load the label information on the named device * | |
788 | \*******************************************************/ | |
789 | int sdgetdisklabel(unit) | |
790 | unsigned char unit; | |
791 | { | |
792 | /*unsigned int n, m;*/ | |
793 | char *errstring; | |
794 | struct dos_partition *dos_partition_p; | |
795 | struct sd_data *sd = sd_data + unit; | |
796 | ||
797 | /*******************************************************\ | |
798 | * If the inflo is already loaded, use it * | |
799 | \*******************************************************/ | |
800 | if(sd->flags & SDHAVELABEL) return(ESUCCESS); | |
801 | ||
802 | bzero(&sd->disklabel,sizeof(struct disklabel)); | |
803 | /*******************************************************\ | |
804 | * make partition 3 the whole disk in case of failure * | |
805 | * then get pdinfo * | |
806 | \*******************************************************/ | |
807 | sd->disklabel.d_partitions[0].p_offset = 0; | |
808 | sd->disklabel.d_partitions[0].p_size = sd->params.disksize; | |
809 | sd->disklabel.d_partitions[RAW_PART].p_offset = 0; | |
810 | sd->disklabel.d_partitions[RAW_PART].p_size = sd->params.disksize; | |
811 | sd->disklabel.d_npartitions = MAXPARTITIONS; | |
812 | sd->disklabel.d_secsize = 512; /* as long as it's not 0 */ | |
813 | sd->disklabel.d_ntracks = sd->params.heads; | |
814 | sd->disklabel.d_nsectors = sd->params.sectors; | |
815 | sd->disklabel.d_ncylinders = sd->params.cyls; | |
816 | sd->disklabel.d_secpercyl = sd->params.heads * sd->params.sectors; | |
817 | if (sd->disklabel.d_secpercyl == 0) | |
818 | { | |
819 | sd->disklabel.d_secpercyl = 100; | |
820 | /* as long as it's not 0 */ | |
821 | /* readdisklabel divides by it */ | |
822 | } | |
823 | ||
824 | /*******************************************************\ | |
825 | * all the generic bisklabel extraction routine * | |
826 | \*******************************************************/ | |
827 | if(errstring = readdisklabel(makedev(0 ,(unit<<UNITSHIFT )+3) | |
828 | , sdstrategy | |
829 | , &sd->disklabel | |
830 | , sd->dosparts | |
831 | , 0 | |
832 | , 0)) | |
833 | { | |
834 | printf("sd%d: %s\n",unit, errstring); | |
835 | return(ENXIO); | |
836 | } | |
837 | /*******************************************************\ | |
838 | * leave partition 2 "open" for raw I/O * | |
839 | \*******************************************************/ | |
840 | ||
841 | sd->flags |= SDHAVELABEL; /* WE HAVE IT ALL NOW */ | |
842 | return(ESUCCESS); | |
843 | } | |
844 | ||
845 | /*******************************************************\ | |
846 | * Find out from the device what it's capacity is * | |
847 | \*******************************************************/ | |
848 | sd_size(unit, flags) | |
849 | { | |
850 | struct scsi_read_cap_data rdcap; | |
851 | struct scsi_read_capacity scsi_cmd; | |
852 | int size; | |
853 | ||
854 | /*******************************************************\ | |
855 | * make up a scsi command and ask the scsi driver to do * | |
856 | * it for you. * | |
857 | \*******************************************************/ | |
858 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
859 | scsi_cmd.op_code = READ_CAPACITY; | |
860 | ||
861 | /*******************************************************\ | |
862 | * If the command works, interpret the result as a 4 byte* | |
863 | * number of blocks * | |
864 | \*******************************************************/ | |
865 | if (sd_scsi_cmd(unit, | |
866 | &scsi_cmd, | |
867 | sizeof(scsi_cmd), | |
868 | &rdcap, | |
869 | sizeof(rdcap), | |
870 | 2000, | |
871 | flags) != 0) | |
872 | { | |
873 | printf("could not get size of unit %d\n", unit); | |
874 | return(0); | |
875 | } else { | |
876 | size = rdcap.addr_0 + 1 ; | |
877 | size += rdcap.addr_1 << 8; | |
878 | size += rdcap.addr_2 << 16; | |
879 | size += rdcap.addr_3 << 24; | |
880 | } | |
881 | return(size); | |
882 | } | |
883 | ||
884 | /*******************************************************\ | |
885 | * Get scsi driver to send a "are you ready?" command * | |
886 | \*******************************************************/ | |
887 | sd_test_unit_ready(unit,flags) | |
888 | int unit,flags; | |
889 | { | |
890 | struct scsi_test_unit_ready scsi_cmd; | |
891 | ||
892 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
893 | scsi_cmd.op_code = TEST_UNIT_READY; | |
894 | ||
895 | return (sd_scsi_cmd(unit, | |
896 | &scsi_cmd, | |
897 | sizeof(scsi_cmd), | |
898 | 0, | |
899 | 0, | |
900 | 100000, | |
901 | flags)); | |
902 | } | |
903 | ||
904 | /*******************************************************\ | |
905 | * Prevent or allow the user to remove the tape * | |
906 | \*******************************************************/ | |
907 | sd_prevent(unit,type,flags) | |
908 | int unit,type,flags; | |
909 | { | |
910 | struct scsi_prevent scsi_cmd; | |
911 | ||
912 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
913 | scsi_cmd.op_code = PREVENT_ALLOW; | |
869c4419 | 914 | scsi_cmd.how=type; |
15637ed4 RG |
915 | return (sd_scsi_cmd(unit, |
916 | &scsi_cmd, | |
917 | sizeof(scsi_cmd), | |
918 | 0, | |
919 | 0, | |
920 | 5000, | |
921 | flags) ); | |
922 | } | |
923 | /*******************************************************\ | |
924 | * Get scsi driver to send a "start up" command * | |
925 | \*******************************************************/ | |
926 | sd_start_unit(unit,flags) | |
927 | int unit,flags; | |
928 | { | |
929 | struct scsi_start_stop scsi_cmd; | |
930 | ||
931 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
932 | scsi_cmd.op_code = START_STOP; | |
869c4419 | 933 | scsi_cmd.how = SSS_START; |
15637ed4 RG |
934 | |
935 | return (sd_scsi_cmd(unit, | |
936 | &scsi_cmd, | |
937 | sizeof(scsi_cmd), | |
938 | 0, | |
939 | 0, | |
940 | 2000, | |
941 | flags)); | |
942 | } | |
943 | ||
944 | /*******************************************************\ | |
945 | * Tell the device to map out a defective block * | |
946 | \*******************************************************/ | |
947 | sd_reassign_blocks(unit,block) | |
948 | { | |
949 | struct scsi_reassign_blocks scsi_cmd; | |
950 | struct scsi_reassign_blocks_data rbdata; | |
951 | ||
952 | ||
953 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
954 | bzero(&rbdata, sizeof(rbdata)); | |
955 | scsi_cmd.op_code = REASSIGN_BLOCKS; | |
956 | ||
957 | rbdata.length_msb = 0; | |
958 | rbdata.length_lsb = sizeof(rbdata.defect_descriptor[0]); | |
959 | rbdata.defect_descriptor[0].dlbaddr_3 = ((block >> 24) & 0xff); | |
960 | rbdata.defect_descriptor[0].dlbaddr_2 = ((block >> 16) & 0xff); | |
961 | rbdata.defect_descriptor[0].dlbaddr_1 = ((block >> 8) & 0xff); | |
962 | rbdata.defect_descriptor[0].dlbaddr_0 = ((block ) & 0xff); | |
963 | ||
964 | return(sd_scsi_cmd(unit, | |
965 | &scsi_cmd, | |
966 | sizeof(scsi_cmd), | |
967 | &rbdata, | |
968 | sizeof(rbdata), | |
969 | 5000, | |
970 | 0)); | |
971 | } | |
972 | ||
973 | #define b2tol(a) (((unsigned)(a##_1) << 8) + (unsigned)a##_0 ) | |
974 | ||
975 | /*******************************************************\ | |
976 | * Get the scsi driver to send a full inquiry to the * | |
977 | * device and use the results to fill out the disk * | |
978 | * parameter structure. * | |
979 | \*******************************************************/ | |
980 | ||
981 | int sd_get_parms(unit, flags) | |
982 | { | |
983 | struct sd_data *sd = sd_data + unit; | |
984 | struct disk_parms *disk_parms = &sd->params; | |
985 | struct scsi_mode_sense scsi_cmd; | |
986 | struct scsi_mode_sense_data | |
987 | { | |
988 | struct scsi_mode_header header; | |
989 | struct blk_desc blk_desc; | |
990 | union disk_pages pages; | |
991 | }scsi_sense; | |
992 | int sectors; | |
993 | ||
994 | /*******************************************************\ | |
995 | * First check if we have it all loaded * | |
996 | \*******************************************************/ | |
997 | if(sd->flags & SDVALID) return(0); | |
998 | /*******************************************************\ | |
999 | * First do a mode sense page 3 * | |
1000 | \*******************************************************/ | |
1001 | if (sd_debug) | |
1002 | { | |
1003 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
1004 | scsi_cmd.op_code = MODE_SENSE; | |
869c4419 | 1005 | scsi_cmd.page = 3; |
15637ed4 RG |
1006 | scsi_cmd.length = 0x24; |
1007 | /*******************************************************\ | |
1008 | * do the command, but we don't need the results * | |
1009 | * just print them for our interest's sake * | |
1010 | \*******************************************************/ | |
1011 | if (sd_scsi_cmd(unit, | |
1012 | &scsi_cmd, | |
1013 | sizeof(scsi_cmd), | |
1014 | &scsi_sense, | |
1015 | sizeof(scsi_sense), | |
1016 | 2000, | |
1017 | flags) != 0) | |
1018 | { | |
1019 | printf("could not mode sense (3) for unit %d\n", unit); | |
1020 | return(ENXIO); | |
1021 | } | |
1022 | printf("unit %d: %d trk/zone, %d alt_sec/zone, %d alt_trk/zone, %d alt_trk/lun\n", | |
1023 | unit, | |
1024 | b2tol(scsi_sense.pages.disk_format.trk_z), | |
1025 | b2tol(scsi_sense.pages.disk_format.alt_sec), | |
1026 | b2tol(scsi_sense.pages.disk_format.alt_trk_z), | |
1027 | b2tol(scsi_sense.pages.disk_format.alt_trk_v)); | |
1028 | printf(" %d sec/trk, %d bytes/sec, %d interleave, %d %d bytes/log_blk\n", | |
1029 | b2tol(scsi_sense.pages.disk_format.ph_sec_t), | |
1030 | b2tol(scsi_sense.pages.disk_format.bytes_s), | |
1031 | b2tol(scsi_sense.pages.disk_format.interleave), | |
1032 | sd_size(unit, flags), | |
1033 | _3btol(scsi_sense.blk_desc.blklen)); | |
1034 | } | |
1035 | ||
1036 | ||
1037 | /*******************************************************\ | |
1038 | * do a "mode sense page 4" * | |
1039 | \*******************************************************/ | |
1040 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
1041 | scsi_cmd.op_code = MODE_SENSE; | |
869c4419 | 1042 | scsi_cmd.page = 4; |
15637ed4 RG |
1043 | scsi_cmd.length = 0x20; |
1044 | /*******************************************************\ | |
1045 | * If the command worked, use the results to fill out * | |
1046 | * the parameter structure * | |
1047 | \*******************************************************/ | |
1048 | if (sd_scsi_cmd(unit, | |
1049 | &scsi_cmd, | |
1050 | sizeof(scsi_cmd), | |
1051 | &scsi_sense, | |
1052 | sizeof(scsi_sense), | |
1053 | 2000, | |
1054 | flags) != 0) | |
1055 | { | |
1056 | printf("could not mode sense (4) for unit %d\n", unit); | |
1057 | printf(" using ficticious geometry\n"); | |
1058 | /* use adaptec standard ficticious geometry */ | |
1059 | sectors = sd_size(unit, flags); | |
1060 | disk_parms->heads = 64; | |
1061 | disk_parms->sectors = 32; | |
1062 | disk_parms->cyls = sectors/(64 * 32); | |
1063 | disk_parms->secsiz = SECSIZE; | |
1064 | } | |
1065 | else | |
1066 | { | |
1067 | ||
1068 | if (sd_debug) | |
1069 | { | |
1070 | printf(" %d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n", | |
1071 | _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2), | |
1072 | scsi_sense.pages.rigid_geometry.nheads, | |
1073 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_wp), | |
1074 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_rwc), | |
1075 | b2tol(scsi_sense.pages.rigid_geometry.land_zone)); | |
1076 | } | |
1077 | ||
1078 | /*******************************************************\ | |
1079 | * KLUDGE!!(for zone recorded disks) * | |
1080 | * give a number of sectors so that sec * trks * cyls * | |
1081 | * is <= disk_size * | |
1082 | \*******************************************************/ | |
1083 | disk_parms->heads = scsi_sense.pages.rigid_geometry.nheads; | |
1084 | disk_parms->cyls = _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2); | |
1085 | disk_parms->secsiz = _3btol(&scsi_sense.blk_desc.blklen); | |
1086 | ||
1087 | sectors = sd_size(unit, flags); | |
1088 | sectors /= disk_parms->cyls; | |
1089 | sectors /= disk_parms->heads; | |
1090 | disk_parms->sectors = sectors; /* dubious on SCSI*/ | |
1091 | } | |
1092 | ||
1093 | sd->flags |= SDVALID; | |
1094 | return(0); | |
1095 | } | |
1096 | ||
1097 | /*******************************************************\ | |
1098 | * close the device.. only called if we are the LAST * | |
1099 | * occurence of an open device * | |
1100 | \*******************************************************/ | |
1101 | sdclose(dev) | |
1102 | dev_t dev; | |
1103 | { | |
1104 | unsigned char unit, part; | |
1105 | unsigned int old_priority; | |
1106 | ||
1107 | unit = UNIT(dev); | |
1108 | part = PARTITION(dev); | |
1109 | sd_data[unit].partflags[part] &= ~SDOPEN; | |
1110 | sd_data[unit].openparts &= ~(1 << part); | |
1111 | if(sd_data[unit].openparts == 0) /* if all partitions closed */ | |
1112 | { | |
1113 | sd_prevent(unit,PR_ALLOW,SCSI_SILENT|SCSI_ERR_OK); | |
1114 | } | |
1115 | return(0); | |
1116 | } | |
1117 | ||
1118 | /*******************************************************\ | |
1119 | * ask the scsi driver to perform a command for us. * | |
1120 | * Call it through the switch table, and tell it which * | |
1121 | * sub-unit we want, and what target and lu we wish to * | |
1122 | * talk to. Also tell it where to find the command * | |
1123 | * how long int is. * | |
1124 | * Also tell it where to read/write the data, and how * | |
1125 | * long the data is supposed to be * | |
1126 | \*******************************************************/ | |
1127 | int sd_scsi_cmd(unit,scsi_cmd,cmdlen,data_addr,datalen,timeout,flags) | |
1128 | ||
1129 | int unit,flags; | |
1130 | struct scsi_generic *scsi_cmd; | |
1131 | int cmdlen; | |
1132 | int timeout; | |
1133 | u_char *data_addr; | |
1134 | int datalen; | |
1135 | { | |
1136 | struct scsi_xfer *xs; | |
1137 | int retval; | |
1138 | int s; | |
1139 | struct sd_data *sd = sd_data + unit; | |
1140 | ||
1141 | if(scsi_debug & PRINTROUTINES) printf("\nsd_scsi_cmd%d ",unit); | |
1142 | if(sd->sc_sw) /* If we have a scsi driver */ | |
1143 | { | |
1144 | xs = sd_get_xs(unit,flags); /* should wait unless booting */ | |
1145 | if(!xs) | |
1146 | { | |
1147 | printf("sd_scsi_cmd%d: controller busy" | |
1148 | " (this should never happen)\n",unit); | |
1149 | return(EBUSY); | |
1150 | } | |
1151 | xs->flags |= INUSE; | |
1152 | /*******************************************************\ | |
1153 | * Fill out the scsi_xfer structure * | |
1154 | \*******************************************************/ | |
1155 | xs->flags |= flags; | |
1156 | xs->adapter = sd->ctlr; | |
1157 | xs->targ = sd->targ; | |
1158 | xs->lu = sd->lu; | |
1159 | xs->retries = SD_RETRIES; | |
1160 | xs->timeout = timeout; | |
1161 | xs->cmd = scsi_cmd; | |
1162 | xs->cmdlen = cmdlen; | |
1163 | xs->data = data_addr; | |
1164 | xs->datalen = datalen; | |
1165 | xs->resid = datalen; | |
1166 | xs->when_done = (flags & SCSI_NOMASK) | |
1167 | ?(int (*)())0 | |
1168 | :sd_done; | |
1169 | xs->done_arg = unit; | |
1170 | xs->done_arg2 = (int)xs; | |
1171 | retry: xs->error = XS_NOERROR; | |
1172 | xs->bp = 0; | |
1173 | retval = (*(sd->sc_sw->scsi_cmd))(xs); | |
1174 | switch(retval) | |
1175 | { | |
1176 | case SUCCESSFULLY_QUEUED: | |
1177 | s = splbio(); | |
1178 | while(!(xs->flags & ITSDONE)) | |
1179 | sleep(xs,PRIBIO+1); | |
1180 | splx(s); | |
1181 | ||
1182 | case HAD_ERROR: | |
1183 | /*printf("err = %d ",xs->error);*/ | |
1184 | switch(xs->error) | |
1185 | { | |
1186 | case XS_NOERROR: | |
1187 | retval = ESUCCESS; | |
1188 | break; | |
1189 | case XS_SENSE: | |
1190 | retval = (sd_interpret_sense(unit,xs)); | |
1191 | break; | |
1192 | case XS_DRIVER_STUFFUP: | |
1193 | retval = EIO; | |
1194 | break; | |
1195 | case XS_TIMEOUT: | |
1196 | if(xs->retries-- ) | |
1197 | { | |
1198 | xs->flags &= ~ITSDONE; | |
1199 | goto retry; | |
1200 | } | |
1201 | retval = EIO; | |
1202 | break; | |
1203 | case XS_BUSY: | |
1204 | if(xs->retries-- ) | |
1205 | { | |
1206 | xs->flags &= ~ITSDONE; | |
1207 | goto retry; | |
1208 | } | |
1209 | retval = EIO; | |
1210 | break; | |
1211 | default: | |
1212 | retval = EIO; | |
1213 | printf("sd%d: unknown error category from scsi driver\n" | |
1214 | ,unit); | |
1215 | } | |
1216 | break; | |
1217 | case COMPLETE: | |
1218 | retval = ESUCCESS; | |
1219 | break; | |
1220 | case TRY_AGAIN_LATER: | |
1221 | if(xs->retries-- ) | |
1222 | { | |
1223 | xs->flags &= ~ITSDONE; | |
1224 | goto retry; | |
1225 | } | |
1226 | retval = EIO; | |
1227 | break; | |
1228 | default: | |
1229 | retval = EIO; | |
1230 | } | |
1231 | sd_free_xs(unit,xs,flags); | |
1232 | sdstart(unit); /* check if anything is waiting fr the xs */ | |
1233 | } | |
1234 | else | |
1235 | { | |
1236 | printf("sd%d: not set up\n",unit); | |
1237 | return(EINVAL); | |
1238 | } | |
1239 | return(retval); | |
1240 | } | |
1241 | /***************************************************************\ | |
1242 | * Look at the returned sense and act on the error and detirmine * | |
1243 | * The unix error number to pass back... (0 = report no error) * | |
1244 | \***************************************************************/ | |
1245 | ||
1246 | int sd_interpret_sense(unit,xs) | |
1247 | int unit; | |
1248 | struct scsi_xfer *xs; | |
1249 | { | |
1250 | struct scsi_sense_data *sense; | |
1251 | int key; | |
1252 | int silent; | |
1253 | ||
1254 | /***************************************************************\ | |
1255 | * If the flags say errs are ok, then always return ok. * | |
1256 | \***************************************************************/ | |
1257 | if (xs->flags & SCSI_ERR_OK) return(ESUCCESS); | |
1258 | silent = (xs->flags & SCSI_SILENT); | |
1259 | ||
1260 | sense = &(xs->sense); | |
869c4419 | 1261 | switch(sense->error_code & SSD_ERRCODE) |
15637ed4 | 1262 | { |
869c4419 | 1263 | case 0x70: |
15637ed4 | 1264 | { |
869c4419 | 1265 | key=sense->ext.extended.flags & SSD_KEY; |
15637ed4 RG |
1266 | switch(key) |
1267 | { | |
1268 | case 0x0: | |
1269 | return(ESUCCESS); | |
1270 | case 0x1: | |
1271 | if(!silent) | |
1272 | { | |
1273 | printf("sd%d: soft error(corrected) ", unit); | |
869c4419 | 1274 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1275 | { |
1276 | printf("block no. %d (decimal)", | |
1277 | (sense->ext.extended.info[0] <<24)| | |
1278 | (sense->ext.extended.info[1] <<16)| | |
1279 | (sense->ext.extended.info[2] <<8)| | |
1280 | (sense->ext.extended.info[3] )); | |
1281 | } | |
1282 | printf("\n"); | |
1283 | } | |
1284 | return(ESUCCESS); | |
1285 | case 0x2: | |
1286 | if(!silent)printf("sd%d: not ready\n ", | |
1287 | unit); | |
1288 | return(ENODEV); | |
1289 | case 0x3: | |
1290 | if(!silent) | |
1291 | { | |
1292 | printf("sd%d: medium error ", unit); | |
869c4419 | 1293 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1294 | { |
1295 | printf("block no. %d (decimal)", | |
1296 | (sense->ext.extended.info[0] <<24)| | |
1297 | (sense->ext.extended.info[1] <<16)| | |
1298 | (sense->ext.extended.info[2] <<8)| | |
1299 | (sense->ext.extended.info[3] )); | |
1300 | } | |
1301 | printf("\n"); | |
1302 | } | |
1303 | return(EIO); | |
1304 | case 0x4: | |
1305 | if(!silent)printf("sd%d: non-media hardware failure\n ", | |
1306 | unit); | |
1307 | return(EIO); | |
1308 | case 0x5: | |
1309 | if(!silent)printf("sd%d: illegal request\n ", | |
1310 | unit); | |
1311 | return(EINVAL); | |
1312 | case 0x6: | |
1313 | /***********************************************\ | |
1314 | * If we are not open, then this is not an error * | |
1315 | * as we don't have state yet. Either way, make * | |
1316 | * sure that we don't have any residual state * | |
1317 | \***********************************************/ | |
1318 | if(!silent)printf("sd%d: Unit attention.\n ", unit); | |
1319 | sd_data[unit].flags &= ~(SDVALID | SDHAVELABEL); | |
1320 | if (sd_data[unit].openparts) | |
1321 | { | |
1322 | return(EIO); | |
1323 | } | |
1324 | return(ESUCCESS); /* not an error if nothing's open */ | |
1325 | case 0x7: | |
1326 | if(!silent) | |
1327 | { | |
1328 | printf("sd%d: attempted protection violation ", | |
1329 | unit); | |
869c4419 | 1330 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1331 | { |
1332 | printf("block no. %d (decimal)\n", | |
1333 | (sense->ext.extended.info[0] <<24)| | |
1334 | (sense->ext.extended.info[1] <<16)| | |
1335 | (sense->ext.extended.info[2] <<8)| | |
1336 | (sense->ext.extended.info[3] )); | |
1337 | } | |
1338 | printf("\n"); | |
1339 | } | |
1340 | return(EACCES); | |
1341 | case 0x8: | |
1342 | if(!silent) | |
1343 | { | |
1344 | printf("sd%d: block wrong state (worm)\n ", | |
1345 | unit); | |
869c4419 | 1346 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1347 | { |
1348 | printf("block no. %d (decimal)\n", | |
1349 | (sense->ext.extended.info[0] <<24)| | |
1350 | (sense->ext.extended.info[1] <<16)| | |
1351 | (sense->ext.extended.info[2] <<8)| | |
1352 | (sense->ext.extended.info[3] )); | |
1353 | } | |
1354 | printf("\n"); | |
1355 | } | |
1356 | return(EIO); | |
1357 | case 0x9: | |
1358 | if(!silent)printf("sd%d: vendor unique\n", | |
1359 | unit); | |
1360 | return(EIO); | |
1361 | case 0xa: | |
1362 | if(!silent)printf("sd%d: copy aborted\n ", | |
1363 | unit); | |
1364 | return(EIO); | |
1365 | case 0xb: | |
1366 | if(!silent)printf("sd%d: command aborted\n ", | |
1367 | unit); | |
1368 | return(EIO); | |
1369 | case 0xc: | |
1370 | if(!silent) | |
1371 | { | |
1372 | printf("sd%d: search returned\n ", | |
1373 | unit); | |
869c4419 | 1374 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1375 | { |
1376 | printf("block no. %d (decimal)\n", | |
1377 | (sense->ext.extended.info[0] <<24)| | |
1378 | (sense->ext.extended.info[1] <<16)| | |
1379 | (sense->ext.extended.info[2] <<8)| | |
1380 | (sense->ext.extended.info[3] )); | |
1381 | } | |
1382 | printf("\n"); | |
1383 | } | |
1384 | return(ESUCCESS); | |
1385 | case 0xd: | |
1386 | if(!silent)printf("sd%d: volume overflow\n ", | |
1387 | unit); | |
1388 | return(ENOSPC); | |
1389 | case 0xe: | |
1390 | if(!silent) | |
1391 | { | |
1392 | printf("sd%d: verify miscompare\n ", | |
1393 | unit); | |
869c4419 | 1394 | if(sense->error_code & SSD_ERRCODE_VALID) |
15637ed4 RG |
1395 | { |
1396 | printf("block no. %d (decimal)\n", | |
1397 | (sense->ext.extended.info[0] <<24)| | |
1398 | (sense->ext.extended.info[1] <<16)| | |
1399 | (sense->ext.extended.info[2] <<8)| | |
1400 | (sense->ext.extended.info[3] )); | |
1401 | } | |
1402 | printf("\n"); | |
1403 | } | |
1404 | return(EIO); | |
1405 | case 0xf: | |
1406 | if(!silent)printf("sd%d: unknown error key\n ", | |
1407 | unit); | |
1408 | return(EIO); | |
1409 | } | |
1410 | break; | |
1411 | } | |
869c4419 | 1412 | default: |
15637ed4 | 1413 | { |
869c4419 | 1414 | if(!silent)printf("sd%d: code %d\n", |
15637ed4 | 1415 | unit, |
869c4419 RG |
1416 | sense->error_code & SSD_ERRCODE); |
1417 | if(sense->error_code & SSD_ERRCODE_VALID) | |
15637ed4 RG |
1418 | if(!silent)printf("block no. %d (decimal)\n", |
1419 | (sense->ext.unextended.blockhi <<16) | |
1420 | + (sense->ext.unextended.blockmed <<8) | |
1421 | + (sense->ext.unextended.blocklow )); | |
1422 | } | |
1423 | return(EIO); | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | ||
1428 | ||
1429 | ||
1430 | int | |
1431 | sdsize(dev_t dev) | |
1432 | { | |
1433 | int unit = UNIT(dev), part = PARTITION(dev), val; | |
1434 | struct sd_data *sd; | |
1435 | ||
1436 | if (unit >= NSD) | |
1437 | return(-1); | |
1438 | ||
1439 | sd = &sd_data[unit]; | |
1440 | if((sd->flags & SDINIT) == 0) return(-1); | |
1441 | if (sd == 0 || (sd->flags & SDHAVELABEL) == 0) | |
1442 | val = sdopen (MAKESDDEV(major(dev), unit, RAW_PART), FREAD, S_IFBLK, 0); | |
1443 | if ( val != 0 || sd->flags & SDWRITEPROT) | |
1444 | return (-1); | |
1445 | ||
1446 | return((int)sd->disklabel.d_partitions[part].p_size); | |
1447 | } | |
1448 | ||
869c4419 | 1449 | sddump() |
15637ed4 | 1450 | { |
869c4419 RG |
1451 | printf("sddump() -- not implemented\n"); |
1452 | return(-1); | |
1453 | } | |
a0becc21 | 1454 | |
a0becc21 | 1455 | |
a0becc21 | 1456 | |
a0becc21 | 1457 | |
15637ed4 | 1458 |