Commit | Line | Data |
---|---|---|
15637ed4 | 1 | /* |
d4284689 | 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 | * | |
d4284689 | 15 | * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992 |
98639498 | 16 | * |
aa27e2cd | 17 | * $Id: sd.c,v 1.22 1994/04/05 03:23:32 davidg 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> | |
16656850 | 25 | #include <sys/kernel.h> |
15637ed4 RG |
26 | #include <sys/dkbad.h> |
27 | #include <sys/systm.h> | |
28 | #include <sys/conf.h> | |
29 | #include <sys/file.h> | |
30 | #include <sys/stat.h> | |
31 | #include <sys/ioctl.h> | |
32 | #include <sys/buf.h> | |
33 | #include <sys/uio.h> | |
34 | #include <sys/malloc.h> | |
35 | #include <sys/errno.h> | |
36 | #include <sys/disklabel.h> | |
37 | #include <scsi/scsi_all.h> | |
38 | #include <scsi/scsi_disk.h> | |
39 | #include <scsi/scsiconf.h> | |
16656850 | 40 | #include <vm/vm.h> |
15637ed4 | 41 | |
519fb2b7 | 42 | u_int32 sdstrats, sdqueues; |
15637ed4 | 43 | |
519fb2b7 RG |
44 | #ifdef NetBSD |
45 | #ifdef DDB | |
46 | int Debugger(); | |
47 | #else /* DDB */ | |
48 | #define Debugger() | |
49 | #endif /* DDB */ | |
50 | #else /* NetBSD */ | |
15637ed4 RG |
51 | #include <ddb.h> |
52 | #if NDDB > 0 | |
519fb2b7 | 53 | #else /* NDDB > 0 */ |
fde1aeb2 | 54 | #define Debugger(s) |
519fb2b7 RG |
55 | #endif /* NDDB > 0 */ |
56 | #endif | |
15637ed4 RG |
57 | |
58 | #define PAGESIZ 4096 | |
59 | #define SECSIZE 512 | |
519fb2b7 | 60 | #define PDLOCATION 29 |
15637ed4 RG |
61 | #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) |
62 | #define SDOUTSTANDING 2 | |
63 | #define SDQSIZE 4 | |
64 | #define SD_RETRIES 4 | |
16656850 | 65 | #define MAXTRANSFER 8 /* 1 page at a time */ |
15637ed4 RG |
66 | |
67 | #define MAKESDDEV(maj, unit, part) (makedev(maj,((unit<<3)+part))) | |
68 | #define UNITSHIFT 3 | |
69 | #define PARTITION(z) (minor(z) & 0x07) | |
70 | #define RAW_PART 3 | |
71 | #define UNIT(z) ( (minor(z) >> UNITSHIFT) ) | |
72 | ||
73 | #define WHOLE_DISK(unit) ( (unit << UNITSHIFT) + RAW_PART ) | |
74 | ||
519fb2b7 RG |
75 | errval sdgetdisklabel __P((unsigned char unit)); |
76 | errval sd_get_parms __P((int unit, int flags)); | |
4c45483e GW |
77 | void sdstrategy __P((struct buf *)); |
78 | void sdstart __P((u_int32)); | |
15637ed4 | 79 | |
519fb2b7 | 80 | struct scsi_device sd_switch = |
15637ed4 | 81 | { |
519fb2b7 RG |
82 | NULL, /* Use default error handler */ |
83 | sdstart, /* have a queue, served by this */ | |
84 | NULL, /* have no async handler */ | |
85 | NULL, /* Use default 'done' routine */ | |
86 | "sd", | |
87 | 0, | |
88 | { 0, 0 } | |
89 | }; | |
90 | ||
91 | struct sd_data { | |
92 | u_int32 flags; | |
93 | #define SDINIT 0x04 /* device has been init'd */ | |
94 | #define SDHAVELABEL 0x10 /* have read the label */ | |
95 | #define SDDOSPART 0x20 /* Have read the DOS partition table */ | |
96 | #define SDWRITEPROT 0x40 /* Device in readonly mode (S/W) */ | |
97 | struct scsi_link *sc_link; /* contains our targ, lun etc. */ | |
98 | u_int32 ad_info; /* info about the adapter */ | |
99 | u_int32 cmdscount; /* cmds allowed outstanding by board */ | |
100 | boolean wlabel; /* label is writable */ | |
101 | struct disk_parms { | |
102 | u_char heads; /* Number of heads */ | |
103 | u_int16 cyls; /* Number of cylinders */ | |
104 | u_char sectors; /*dubious *//* Number of sectors/track */ | |
105 | u_int16 secsiz; /* Number of bytes/sector */ | |
106 | u_int32 disksize; /* total number sectors */ | |
107 | } params; | |
108 | struct disklabel disklabel; | |
109 | #ifdef NetBSD | |
110 | struct cpu_disklabel cpudisklabel; | |
111 | #else | |
112 | struct dos_partition dosparts[NDOSPART]; /* DOS view of disk */ | |
113 | #endif /* NetBSD */ | |
114 | u_int32 partflags[MAXPARTITIONS]; /* per partition flags */ | |
15637ed4 | 115 | #define SDOPEN 0x01 |
519fb2b7 RG |
116 | u_int32 openparts; /* one bit for each open partition */ |
117 | u_int32 sd_start_of_unix; /* unix vs dos partitions */ | |
118 | struct buf buf_queue; | |
119 | u_int32 xfer_block_wait; | |
120 | } *sd_data[NSD]; | |
15637ed4 | 121 | |
519fb2b7 | 122 | static u_int32 next_sd_unit = 0; |
15637ed4 | 123 | |
16656850 RG |
124 | static struct scsi_xfer sx; |
125 | ||
519fb2b7 RG |
126 | /* |
127 | * The routine called by the low level scsi routine when it discovers | |
128 | * a device suitable for this driver. | |
129 | */ | |
130 | errval | |
131 | sdattach(sc_link) | |
132 | struct scsi_link *sc_link; | |
15637ed4 | 133 | { |
519fb2b7 | 134 | u_int32 unit; |
15637ed4 RG |
135 | struct sd_data *sd; |
136 | struct disk_parms *dp; | |
15637ed4 RG |
137 | |
138 | unit = next_sd_unit++; | |
519fb2b7 RG |
139 | SC_DEBUG(sc_link, SDEV_DB2, ("sdattach: ")); |
140 | /* | |
141 | * Check we have the resources for another drive | |
142 | */ | |
143 | if (unit >= NSD) { | |
144 | printf("Too many scsi disks..(%d > %d) reconfigure kernel\n", | |
145 | (unit + 1), NSD); | |
146 | return 0; | |
15637ed4 | 147 | } |
519fb2b7 RG |
148 | if (sd_data[unit]) { |
149 | printf("sd%d: unit already has storage allocated!\n", unit); | |
150 | return 0; | |
d4284689 | 151 | } |
519fb2b7 RG |
152 | sd = sd_data[unit] = malloc(sizeof(struct sd_data), M_DEVBUF, M_NOWAIT); |
153 | if (!sd) { | |
d4284689 | 154 | printf("malloc failed in sd.c\n"); |
519fb2b7 | 155 | return (0); |
d4284689 | 156 | } |
519fb2b7 RG |
157 | bzero(sd, sizeof(struct sd_data)); |
158 | ||
159 | dp = &(sd->params); | |
160 | /* | |
161 | * Store information needed to contact our base driver | |
162 | */ | |
163 | sd->sc_link = sc_link; | |
164 | sc_link->device = &sd_switch; | |
165 | sc_link->dev_unit = unit; | |
166 | ||
167 | if (sd->sc_link->adapter->adapter_info) { | |
168 | sd->ad_info = ((*(sd->sc_link->adapter->adapter_info)) (sc_link->adapter_unit)); | |
169 | sd->cmdscount = sd->ad_info & AD_INF_MAX_CMDS; | |
170 | if (sd->cmdscount > SDOUTSTANDING) { | |
15637ed4 RG |
171 | sd->cmdscount = SDOUTSTANDING; |
172 | } | |
519fb2b7 | 173 | } else { |
15637ed4 | 174 | sd->ad_info = 1; |
519fb2b7 RG |
175 | sd->cmdscount = 1; |
176 | } | |
177 | sc_link->opennings = sd->cmdscount; | |
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); | |
98639498 | 184 | printf("sd%d: %dMB (%d total sec), %d cyl, %d head, %d sec, bytes/sec %d\n", |
519fb2b7 | 185 | unit, |
4d486ab8 | 186 | dp->disksize / ((1024L * 1024L) / dp->secsiz), |
519fb2b7 RG |
187 | dp->disksize, |
188 | dp->cyls, | |
189 | dp->heads, | |
190 | dp->sectors, | |
191 | dp->secsiz); | |
15637ed4 | 192 | sd->flags |= SDINIT; |
519fb2b7 | 193 | return 0; |
15637ed4 RG |
194 | } |
195 | ||
519fb2b7 RG |
196 | /* |
197 | * open the device. Make sure the partition info is a up-to-date as can be. | |
198 | */ | |
199 | errval | |
15637ed4 | 200 | sdopen(dev) |
519fb2b7 | 201 | int dev; /* XXX should be dev_t, but avoid promotion problems for now */ |
15637ed4 | 202 | { |
519fb2b7 RG |
203 | errval errcode = 0; |
204 | u_int32 unit, part; | |
205 | struct sd_data *sd; | |
206 | struct scsi_link *sc_link; | |
15637ed4 RG |
207 | |
208 | unit = UNIT(dev); | |
209 | part = PARTITION(dev); | |
d4284689 | 210 | sd = sd_data[unit]; |
519fb2b7 RG |
211 | /* |
212 | * Check the unit is legal | |
213 | */ | |
214 | if (unit >= NSD) { | |
215 | return (ENXIO); | |
15637ed4 | 216 | } |
519fb2b7 RG |
217 | /* |
218 | * Make sure the disk has been initialised | |
219 | * At some point in the future, get the scsi driver | |
220 | * to look for a new device if we are not initted | |
221 | */ | |
222 | if ((!sd) || (!(sd->flags & SDINIT))) { | |
223 | return (ENXIO); | |
15637ed4 | 224 | } |
519fb2b7 RG |
225 | sc_link = sd->sc_link; |
226 | ||
227 | SC_DEBUG(sc_link, SDEV_DB1, | |
228 | ("sdopen: dev=0x%x (unit %d (of %d),partition %d)\n" | |
229 | ,dev, unit, NSD, part)); | |
230 | ||
231 | /* | |
232 | * "unit attention" errors should occur here if the | |
233 | * drive has been restarted or the pack changed. | |
234 | * just ingnore the result, it's a decoy instruction | |
235 | * The error code will act on the error though | |
236 | * and invalidate any media information we had. | |
237 | */ | |
238 | scsi_test_unit_ready(sc_link, 0); | |
239 | ||
240 | /* | |
241 | * If it's been invalidated, then forget the label | |
242 | */ | |
243 | sc_link->flags |= SDEV_OPEN; /* unit attn becomes an err now */ | |
244 | if (!(sc_link->flags & SDEV_MEDIA_LOADED)) { | |
245 | sd->flags &= ~SDHAVELABEL; | |
15637ed4 | 246 | |
519fb2b7 RG |
247 | /* |
248 | * If somebody still has it open, then forbid re-entry. | |
249 | */ | |
250 | if (sd->openparts) { | |
251 | errcode = ENXIO; | |
252 | goto bad; | |
253 | } | |
254 | } | |
255 | /* | |
256 | * In case it is a funny one, tell it to start | |
257 | * not needed for most hard drives (ignore failure) | |
258 | */ | |
259 | scsi_start_unit(sc_link, SCSI_ERR_OK | SCSI_SILENT); | |
260 | ||
261 | /* | |
262 | * Check that it is still responding and ok. | |
263 | */ | |
264 | if (scsi_test_unit_ready(sc_link, 0)) { | |
265 | SC_DEBUG(sc_link, SDEV_DB3, ("device not reponding\n")); | |
266 | errcode = ENXIO; | |
267 | goto bad; | |
d4284689 | 268 | } |
519fb2b7 RG |
269 | SC_DEBUG(sc_link, SDEV_DB3, ("device ok\n")); |
270 | ||
271 | /* | |
272 | * Load the physical device parameters | |
273 | */ | |
274 | sd_get_parms(unit, 0); /* sets SDEV_MEDIA_LOADED */ | |
275 | if (sd->params.secsiz != SECSIZE) { /* XXX One day... */ | |
276 | printf("sd%d: Can't deal with %d bytes logical blocks\n", | |
277 | unit, sd->params.secsiz); | |
fde1aeb2 | 278 | Debugger("sd"); |
519fb2b7 RG |
279 | errcode = ENXIO; |
280 | goto bad; | |
15637ed4 | 281 | } |
519fb2b7 RG |
282 | SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded ")); |
283 | ||
284 | /* Lock the pack in. */ | |
285 | scsi_prevent(sc_link, PR_PREVENT, SCSI_ERR_OK | SCSI_SILENT); | |
286 | ||
287 | /* | |
288 | * Load the partition info if not already loaded. | |
289 | */ | |
290 | if ((errcode = sdgetdisklabel(unit)) && (part != RAW_PART)) { | |
291 | goto bad; | |
15637ed4 | 292 | } |
519fb2b7 RG |
293 | SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel loaded ")); |
294 | /* | |
295 | * Check the partition is legal | |
296 | */ | |
297 | if (part >= MAXPARTITIONS) { | |
298 | errcode = ENXIO; | |
299 | goto bad; | |
15637ed4 | 300 | } |
519fb2b7 RG |
301 | SC_DEBUG(sc_link, SDEV_DB3, ("partition ok")); |
302 | ||
303 | /* | |
304 | * Check that the partition exists | |
305 | */ | |
306 | if ((sd->disklabel.d_partitions[part].p_size == 0) | |
307 | && (part != RAW_PART)) { | |
308 | errcode = ENXIO; | |
309 | goto bad; | |
15637ed4 RG |
310 | } |
311 | sd->partflags[part] |= SDOPEN; | |
312 | sd->openparts |= (1 << part); | |
519fb2b7 RG |
313 | SC_DEBUG(sc_link, SDEV_DB3, ("open %d %d\n", sdstrats, sdqueues)); |
314 | return 0; | |
15637ed4 | 315 | |
519fb2b7 RG |
316 | bad: |
317 | if (!(sd->openparts)) { | |
318 | scsi_prevent(sc_link, PR_ALLOW, SCSI_ERR_OK | SCSI_SILENT); | |
319 | sc_link->flags &= ~SDEV_OPEN; | |
15637ed4 | 320 | } |
519fb2b7 | 321 | return errcode; |
15637ed4 RG |
322 | } |
323 | ||
519fb2b7 RG |
324 | /* |
325 | * close the device.. only called if we are the LAST occurence of an open | |
326 | * device. Convenient now but usually a pain. | |
327 | */ | |
328 | errval | |
329 | sdclose(dev) | |
330 | dev_t dev; | |
15637ed4 | 331 | { |
519fb2b7 RG |
332 | unsigned char unit, part; |
333 | struct sd_data *sd; | |
334 | ||
335 | unit = UNIT(dev); | |
336 | part = PARTITION(dev); | |
337 | sd = sd_data[unit]; | |
338 | sd->partflags[part] &= ~SDOPEN; | |
339 | sd->openparts &= ~(1 << part); | |
340 | scsi_prevent(sd->sc_link, PR_ALLOW, SCSI_SILENT | SCSI_ERR_OK); | |
341 | if (!(sd->openparts)) | |
342 | sd->sc_link->flags &= ~SDEV_OPEN; | |
343 | return 0; | |
15637ed4 RG |
344 | } |
345 | ||
519fb2b7 RG |
346 | /* |
347 | * trim the size of the transfer if needed, called by physio | |
348 | * basically the smaller of our max and the scsi driver's | |
349 | * minphys (note we have no max) | |
350 | * | |
351 | * Trim buffer length if buffer-size is bigger than page size | |
352 | */ | |
353 | void | |
354 | sdminphys(bp) | |
355 | struct buf *bp; | |
15637ed4 | 356 | { |
519fb2b7 | 357 | (*(sd_data[UNIT(bp->b_dev)]->sc_link->adapter->scsi_minphys)) (bp); |
15637ed4 RG |
358 | } |
359 | ||
519fb2b7 RG |
360 | /* |
361 | * Actually translate the requested transfer into one the physical driver | |
362 | * can understand. The transfer is described by a buf and will include | |
363 | * only one physical transfer. | |
364 | */ | |
4c45483e | 365 | void |
519fb2b7 RG |
366 | sdstrategy(bp) |
367 | struct buf *bp; | |
15637ed4 | 368 | { |
519fb2b7 RG |
369 | struct buf *dp; |
370 | u_int32 opri; | |
371 | struct sd_data *sd; | |
372 | u_int32 unit; | |
15637ed4 RG |
373 | |
374 | sdstrats++; | |
375 | unit = UNIT((bp->b_dev)); | |
d4284689 | 376 | sd = sd_data[unit]; |
519fb2b7 RG |
377 | SC_DEBUG(sd->sc_link, SDEV_DB2, ("sdstrategy ")); |
378 | SC_DEBUG(sd->sc_link, SDEV_DB1, | |
379 | (" %d bytes @ blk%d\n", bp->b_bcount, bp->b_blkno)); | |
15637ed4 | 380 | sdminphys(bp); |
519fb2b7 RG |
381 | /* |
382 | * If the device has been made invalid, error out | |
383 | */ | |
384 | if (!(sd->sc_link->flags & SDEV_MEDIA_LOADED)) { | |
385 | sd->flags &= ~SDHAVELABEL; | |
15637ed4 RG |
386 | bp->b_error = EIO; |
387 | goto bad; | |
388 | } | |
519fb2b7 RG |
389 | /* |
390 | * "soft" write protect check | |
391 | */ | |
15637ed4 RG |
392 | if ((sd->flags & SDWRITEPROT) && (bp->b_flags & B_READ) == 0) { |
393 | bp->b_error = EROFS; | |
394 | goto bad; | |
395 | } | |
519fb2b7 RG |
396 | /* |
397 | * If it's a null transfer, return immediatly | |
398 | */ | |
399 | if (bp->b_bcount == 0) { | |
15637ed4 RG |
400 | goto done; |
401 | } | |
519fb2b7 RG |
402 | /* |
403 | * Decide which unit and partition we are talking about | |
404 | * only raw is ok if no label | |
405 | */ | |
406 | if (PARTITION(bp->b_dev) != RAW_PART) { | |
407 | if (!(sd->flags & SDHAVELABEL)) { | |
15637ed4 RG |
408 | bp->b_error = EIO; |
409 | goto bad; | |
410 | } | |
15637ed4 RG |
411 | /* |
412 | * do bounds checking, adjust transfer. if error, process. | |
413 | * if end of partition, just return | |
414 | */ | |
519fb2b7 | 415 | if (bounds_check_with_label(bp, &sd->disklabel, sd->wlabel) <= 0) |
15637ed4 RG |
416 | goto done; |
417 | /* otherwise, process transfer request */ | |
aa27e2cd DG |
418 | } else { |
419 | bp->b_pblkno = bp->b_blkno; | |
420 | bp->b_resid = 0; | |
15637ed4 | 421 | } |
15637ed4 | 422 | opri = SPLSD(); |
519fb2b7 | 423 | dp = &sd->buf_queue; |
15637ed4 | 424 | |
8387479d DG |
425 | /* |
426 | * Use a bounce buffer if necessary | |
427 | */ | |
428 | #ifndef NOBOUNCE | |
429 | if (sd->sc_link->flags & SDEV_BOUNCE) | |
430 | vm_bounce_alloc(bp); | |
431 | #endif | |
432 | ||
519fb2b7 RG |
433 | /* |
434 | * Place it in the queue of disk activities for this disk | |
435 | */ | |
2157b04d | 436 | cldisksort(dp, bp, 64*1024); |
15637ed4 | 437 | |
519fb2b7 RG |
438 | /* |
439 | * Tell the device to get going on the transfer if it's | |
440 | * not doing anything, otherwise just wait for completion | |
441 | */ | |
15637ed4 RG |
442 | sdstart(unit); |
443 | ||
444 | splx(opri); | |
4c45483e | 445 | return /*0*/; |
15637ed4 RG |
446 | bad: |
447 | bp->b_flags |= B_ERROR; | |
448 | done: | |
449 | ||
519fb2b7 RG |
450 | /* |
451 | * Correctly set the buf to indicate a completed xfer | |
452 | */ | |
453 | bp->b_resid = bp->b_bcount; | |
15637ed4 | 454 | biodone(bp); |
4c45483e | 455 | return /*0*/; |
15637ed4 RG |
456 | } |
457 | ||
519fb2b7 RG |
458 | /* |
459 | * sdstart looks to see if there is a buf waiting for the device | |
460 | * and that the device is not already busy. If both are true, | |
461 | * It dequeues the buf and creates a scsi command to perform the | |
462 | * transfer in the buf. The transfer request will call scsi_done | |
463 | * on completion, which will in turn call this routine again | |
464 | * so that the next queued transfer is performed. | |
465 | * The bufs are queued by the strategy routine (sdstrategy) | |
466 | * | |
467 | * This routine is also called after other non-queued requests | |
468 | * have been made of the scsi driver, to ensure that the queue | |
469 | * continues to be drained. | |
470 | * | |
471 | * must be called at the correct (highish) spl level | |
472 | * sdstart() is called at SPLSD from sdstrategy and scsi_done | |
473 | */ | |
474 | void | |
15637ed4 | 475 | sdstart(unit) |
519fb2b7 | 476 | u_int32 unit; |
15637ed4 | 477 | { |
519fb2b7 RG |
478 | register struct sd_data *sd = sd_data[unit]; |
479 | register struct scsi_link *sc_link = sd->sc_link; | |
480 | struct buf *bp = 0; | |
481 | struct buf *dp; | |
482 | struct scsi_rw_big cmd; | |
483 | u_int32 blkno, nblk; | |
484 | struct partition *p; | |
485 | ||
486 | SC_DEBUG(sc_link, SDEV_DB2, ("sdstart ")); | |
487 | /* | |
488 | * Check if the device has room for another command | |
489 | */ | |
490 | while (sc_link->opennings) { | |
15637ed4 | 491 | |
519fb2b7 RG |
492 | /* |
493 | * there is excess capacity, but a special waits | |
494 | * It'll need the adapter as soon as we clear out of the | |
495 | * way and let it run (user level wait). | |
496 | */ | |
497 | if (sc_link->flags & SDEV_WAITING) { | |
498 | return; | |
499 | } | |
500 | /* | |
501 | * See if there is a buf with work for us to do.. | |
502 | */ | |
503 | dp = &sd->buf_queue; | |
504 | if ((bp = dp->b_actf) == NULL) { /* yes, an assign */ | |
505 | return; | |
506 | } | |
507 | dp->b_actf = bp->av_forw; | |
15637ed4 | 508 | |
519fb2b7 RG |
509 | /* |
510 | * If the device has become invalid, abort all the | |
511 | * reads and writes until all files have been closed and | |
512 | * re-openned | |
513 | */ | |
514 | if (!(sc_link->flags & SDEV_MEDIA_LOADED)) { | |
515 | sd->flags &= ~SDHAVELABEL; | |
516 | goto bad; | |
517 | } | |
518 | /* | |
519 | * We have a buf, now we know we are going to go through | |
520 | * With this thing.. | |
521 | * | |
522 | * First, translate the block to absolute | |
523 | */ | |
524 | p = sd->disklabel.d_partitions + PARTITION(bp->b_dev); | |
525 | blkno = bp->b_blkno + p->p_offset; | |
526 | nblk = (bp->b_bcount + 511) >> 9; | |
d4284689 | 527 | |
519fb2b7 RG |
528 | /* |
529 | * Fill out the scsi command | |
530 | */ | |
531 | bzero(&cmd, sizeof(cmd)); | |
532 | cmd.op_code = (bp->b_flags & B_READ) | |
533 | ? READ_BIG : WRITE_BIG; | |
fde1aeb2 | 534 | cmd.addr_3 = (blkno & 0xff000000UL) >> 24; |
519fb2b7 RG |
535 | cmd.addr_2 = (blkno & 0xff0000) >> 16; |
536 | cmd.addr_1 = (blkno & 0xff00) >> 8; | |
537 | cmd.addr_0 = blkno & 0xff; | |
538 | cmd.length2 = (nblk & 0xff00) >> 8; | |
539 | cmd.length1 = (nblk & 0xff); | |
540 | /* | |
541 | * Call the routine that chats with the adapter. | |
542 | * Note: we cannot sleep as we may be an interrupt | |
543 | */ | |
544 | if (scsi_scsi_cmd(sc_link, | |
545 | (struct scsi_generic *) &cmd, | |
d4284689 | 546 | sizeof(cmd), |
519fb2b7 | 547 | (u_char *) bp->b_un.b_addr, |
d4284689 | 548 | bp->b_bcount, |
519fb2b7 | 549 | SD_RETRIES, |
d4284689 RG |
550 | 10000, |
551 | bp, | |
519fb2b7 RG |
552 | SCSI_NOSLEEP | ((bp->b_flags & B_READ) ? |
553 | SCSI_DATA_IN : SCSI_DATA_OUT)) | |
554 | == SUCCESSFULLY_QUEUED) { | |
555 | sdqueues++; | |
556 | } else { | |
d4284689 | 557 | bad: |
519fb2b7 RG |
558 | printf("sd%d: oops not queued", unit); |
559 | bp->b_error = EIO; | |
560 | bp->b_flags |= B_ERROR; | |
561 | biodone(bp); | |
562 | } | |
15637ed4 | 563 | } |
15637ed4 RG |
564 | } |
565 | ||
519fb2b7 RG |
566 | /* |
567 | * Perform special action on behalf of the user | |
568 | * Knows about the internals of this device | |
569 | */ | |
570 | errval | |
15637ed4 RG |
571 | sdioctl(dev_t dev, int cmd, caddr_t addr, int flag) |
572 | { | |
519fb2b7 RG |
573 | /* struct sd_cmd_buf *args; */ |
574 | errval error = 0; | |
15637ed4 RG |
575 | unsigned char unit, part; |
576 | register struct sd_data *sd; | |
577 | ||
519fb2b7 RG |
578 | /* |
579 | * Find the device that the user is talking about | |
580 | */ | |
15637ed4 RG |
581 | unit = UNIT(dev); |
582 | part = PARTITION(dev); | |
d4284689 | 583 | sd = sd_data[unit]; |
519fb2b7 RG |
584 | SC_DEBUG(sd->sc_link, SDEV_DB1, ("sdioctl (0x%x)", cmd)); |
585 | ||
586 | /* | |
587 | * If the device is not valid.. abandon ship | |
588 | */ | |
589 | if (!(sd->sc_link->flags & SDEV_MEDIA_LOADED)) | |
590 | return (EIO); | |
591 | switch (cmd) { | |
15637ed4 RG |
592 | |
593 | case DIOCSBAD: | |
519fb2b7 | 594 | error = EINVAL; |
15637ed4 RG |
595 | break; |
596 | ||
597 | case DIOCGDINFO: | |
519fb2b7 RG |
598 | *(struct disklabel *) addr = sd->disklabel; |
599 | break; | |
600 | ||
601 | case DIOCGPART: | |
602 | ((struct partinfo *) addr)->disklab = &sd->disklabel; | |
603 | ((struct partinfo *) addr)->part = | |
604 | &sd->disklabel.d_partitions[PARTITION(dev)]; | |
15637ed4 RG |
605 | break; |
606 | ||
519fb2b7 RG |
607 | case DIOCSDINFO: |
608 | if ((flag & FWRITE) == 0) | |
609 | error = EBADF; | |
610 | else | |
611 | error = setdisklabel(&sd->disklabel, | |
612 | (struct disklabel *)addr, | |
613 | /*(sd->flags & DKFL_BSDLABEL) ? sd->openparts : */ 0, | |
614 | #ifdef NetBSD | |
615 | &sd->cpudisklabel | |
616 | #else | |
617 | sd->dosparts | |
618 | #endif | |
619 | ); | |
620 | if (error == 0) { | |
15637ed4 RG |
621 | sd->flags |= SDHAVELABEL; |
622 | } | |
519fb2b7 | 623 | break; |
15637ed4 | 624 | |
519fb2b7 | 625 | case DIOCWLABEL: |
15637ed4 | 626 | sd->flags &= ~SDWRITEPROT; |
519fb2b7 RG |
627 | if ((flag & FWRITE) == 0) |
628 | error = EBADF; | |
629 | else | |
630 | sd->wlabel = *(boolean *) addr; | |
631 | break; | |
15637ed4 | 632 | |
519fb2b7 | 633 | case DIOCWDINFO: |
15637ed4 | 634 | sd->flags &= ~SDWRITEPROT; |
519fb2b7 RG |
635 | if ((flag & FWRITE) == 0) |
636 | error = EBADF; | |
637 | else { | |
638 | error = setdisklabel(&sd->disklabel, | |
639 | (struct disklabel *)addr, | |
640 | /*(sd->flags & SDHAVELABEL) ? sd->openparts : */ 0, | |
641 | #ifdef NetBSD | |
642 | &sd->cpudisklabel | |
643 | #else | |
644 | sd->dosparts | |
645 | #endif | |
646 | ); | |
647 | if (!error) { | |
648 | boolean wlab; | |
649 | ||
650 | /* ok - write will succeed */ | |
651 | sd->flags |= SDHAVELABEL; | |
652 | ||
653 | /* simulate opening partition 0 so write succeeds */ | |
654 | sd->openparts |= (1 << 0); /* XXX */ | |
655 | wlab = sd->wlabel; | |
656 | sd->wlabel = 1; | |
657 | error = writedisklabel(dev, sdstrategy, | |
658 | &sd->disklabel, | |
659 | #ifdef NetBSD | |
660 | &sd->cpudisklabel | |
661 | #else | |
662 | sd->dosparts | |
663 | #endif | |
664 | ); | |
665 | sd->wlabel = wlab; | |
666 | } | |
667 | } | |
668 | break; | |
15637ed4 RG |
669 | |
670 | default: | |
519fb2b7 RG |
671 | if (part == RAW_PART) |
672 | error = scsi_do_ioctl(sd->sc_link, cmd, addr, flag); | |
673 | else | |
674 | error = ENOTTY; | |
15637ed4 RG |
675 | break; |
676 | } | |
519fb2b7 | 677 | return error; |
15637ed4 RG |
678 | } |
679 | ||
519fb2b7 RG |
680 | /* |
681 | * Load the label information on the named device | |
682 | */ | |
683 | errval | |
684 | sdgetdisklabel(unsigned char unit) | |
15637ed4 | 685 | { |
519fb2b7 | 686 | char *errstring; |
d4284689 | 687 | struct sd_data *sd = sd_data[unit]; |
15637ed4 | 688 | |
519fb2b7 RG |
689 | /* |
690 | * If the inflo is already loaded, use it | |
691 | */ | |
692 | if (sd->flags & SDHAVELABEL) | |
693 | return (ESUCCESS); | |
694 | ||
695 | bzero(&sd->disklabel, sizeof(struct disklabel)); | |
696 | /* | |
697 | * make partition 3 the whole disk in case of failure then get pdinfo | |
698 | * for historical reasons, make part a same as raw part | |
699 | */ | |
15637ed4 RG |
700 | sd->disklabel.d_partitions[0].p_offset = 0; |
701 | sd->disklabel.d_partitions[0].p_size = sd->params.disksize; | |
702 | sd->disklabel.d_partitions[RAW_PART].p_offset = 0; | |
703 | sd->disklabel.d_partitions[RAW_PART].p_size = sd->params.disksize; | |
704 | sd->disklabel.d_npartitions = MAXPARTITIONS; | |
519fb2b7 | 705 | sd->disklabel.d_secsize = SECSIZE; /* as long as it's not 0 */ |
15637ed4 RG |
706 | sd->disklabel.d_ntracks = sd->params.heads; |
707 | sd->disklabel.d_nsectors = sd->params.sectors; | |
708 | sd->disklabel.d_ncylinders = sd->params.cyls; | |
709 | sd->disklabel.d_secpercyl = sd->params.heads * sd->params.sectors; | |
519fb2b7 | 710 | if (sd->disklabel.d_secpercyl == 0) { |
15637ed4 | 711 | sd->disklabel.d_secpercyl = 100; |
519fb2b7 | 712 | /* as long as it's not 0 - readdisklabel divides by it (?) */ |
15637ed4 | 713 | } |
519fb2b7 RG |
714 | /* |
715 | * Call the generic disklabel extraction routine | |
716 | */ | |
717 | if (errstring = readdisklabel(makedev(0, (unit << UNITSHIFT) + 3), | |
718 | sdstrategy, | |
719 | &sd->disklabel, | |
720 | #ifdef NetBSD | |
721 | &sd->cpudisklabel | |
722 | #else | |
723 | sd->dosparts, | |
724 | 0, | |
725 | 0 | |
726 | #endif | |
727 | )) { | |
728 | printf("sd%d: %s\n", unit, errstring); | |
729 | return ENXIO; | |
15637ed4 | 730 | } |
519fb2b7 RG |
731 | sd->flags |= SDHAVELABEL; /* WE HAVE IT ALL NOW */ |
732 | return ESUCCESS; | |
15637ed4 RG |
733 | } |
734 | ||
519fb2b7 RG |
735 | /* |
736 | * Find out from the device what it's capacity is | |
737 | */ | |
738 | u_int32 | |
15637ed4 | 739 | sd_size(unit, flags) |
519fb2b7 | 740 | int unit, flags; |
15637ed4 RG |
741 | { |
742 | struct scsi_read_cap_data rdcap; | |
743 | struct scsi_read_capacity scsi_cmd; | |
519fb2b7 | 744 | u_int32 size; |
15637ed4 | 745 | |
519fb2b7 RG |
746 | /* |
747 | * make up a scsi command and ask the scsi driver to do | |
748 | * it for you. | |
749 | */ | |
15637ed4 RG |
750 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
751 | scsi_cmd.op_code = READ_CAPACITY; | |
752 | ||
519fb2b7 RG |
753 | /* |
754 | * If the command works, interpret the result as a 4 byte | |
755 | * number of blocks | |
756 | */ | |
757 | if (scsi_scsi_cmd(sd_data[unit]->sc_link, | |
758 | (struct scsi_generic *) &scsi_cmd, | |
759 | sizeof(scsi_cmd), | |
760 | (u_char *) & rdcap, | |
761 | sizeof(rdcap), | |
762 | SD_RETRIES, | |
763 | 2000, | |
764 | NULL, | |
765 | flags | SCSI_DATA_IN) != 0) { | |
bb8f9615 | 766 | printf("sd%d: could not get size\n", unit); |
519fb2b7 | 767 | return (0); |
15637ed4 | 768 | } else { |
519fb2b7 | 769 | size = rdcap.addr_0 + 1; |
15637ed4 RG |
770 | size += rdcap.addr_1 << 8; |
771 | size += rdcap.addr_2 << 16; | |
772 | size += rdcap.addr_3 << 24; | |
773 | } | |
519fb2b7 | 774 | return (size); |
15637ed4 RG |
775 | } |
776 | ||
519fb2b7 RG |
777 | /* |
778 | * Tell the device to map out a defective block | |
779 | */ | |
780 | errval | |
781 | sd_reassign_blocks(unit, block) | |
782 | int unit, block; | |
15637ed4 | 783 | { |
519fb2b7 RG |
784 | struct scsi_reassign_blocks scsi_cmd; |
785 | struct scsi_reassign_blocks_data rbdata; | |
15637ed4 RG |
786 | |
787 | bzero(&scsi_cmd, sizeof(scsi_cmd)); | |
788 | bzero(&rbdata, sizeof(rbdata)); | |
789 | scsi_cmd.op_code = REASSIGN_BLOCKS; | |
790 | ||
791 | rbdata.length_msb = 0; | |
792 | rbdata.length_lsb = sizeof(rbdata.defect_descriptor[0]); | |
793 | rbdata.defect_descriptor[0].dlbaddr_3 = ((block >> 24) & 0xff); | |
794 | rbdata.defect_descriptor[0].dlbaddr_2 = ((block >> 16) & 0xff); | |
519fb2b7 RG |
795 | rbdata.defect_descriptor[0].dlbaddr_1 = ((block >> 8) & 0xff); |
796 | rbdata.defect_descriptor[0].dlbaddr_0 = ((block) & 0xff); | |
797 | ||
798 | return (scsi_scsi_cmd(sd_data[unit]->sc_link, | |
799 | (struct scsi_generic *) &scsi_cmd, | |
800 | sizeof(scsi_cmd), | |
801 | (u_char *) & rbdata, | |
802 | sizeof(rbdata), | |
803 | SD_RETRIES, | |
804 | 5000, | |
805 | NULL, | |
806 | SCSI_DATA_OUT)); | |
15637ed4 | 807 | } |
15637ed4 RG |
808 | #define b2tol(a) (((unsigned)(a##_1) << 8) + (unsigned)a##_0 ) |
809 | ||
519fb2b7 RG |
810 | /* |
811 | * Get the scsi driver to send a full inquiry to the | |
812 | * device and use the results to fill out the disk | |
813 | * parameter structure. | |
814 | */ | |
815 | errval | |
816 | sd_get_parms(unit, flags) | |
817 | int unit, flags; | |
15637ed4 | 818 | { |
d4284689 | 819 | struct sd_data *sd = sd_data[unit]; |
15637ed4 | 820 | struct disk_parms *disk_parms = &sd->params; |
519fb2b7 RG |
821 | struct scsi_mode_sense scsi_cmd; |
822 | struct scsi_mode_sense_data { | |
823 | struct scsi_mode_header header; | |
824 | struct blk_desc blk_desc; | |
825 | union disk_pages pages; | |
826 | } scsi_sense; | |
827 | u_int32 sectors; | |
828 | ||
829 | /* | |
830 | * First check if we have it all loaded | |
831 | */ | |
46d39670 | 832 | if (sd->sc_link->flags & SDEV_MEDIA_LOADED) |
519fb2b7 RG |
833 | return 0; |
834 | ||
835 | /* | |
836 | * do a "mode sense page 4" | |
837 | */ | |
15637ed4 RG |
838 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
839 | scsi_cmd.op_code = MODE_SENSE; | |
869c4419 | 840 | scsi_cmd.page = 4; |
15637ed4 | 841 | scsi_cmd.length = 0x20; |
519fb2b7 RG |
842 | /* |
843 | * If the command worked, use the results to fill out | |
844 | * the parameter structure | |
845 | */ | |
846 | if (scsi_scsi_cmd(sd->sc_link, | |
847 | (struct scsi_generic *) &scsi_cmd, | |
848 | sizeof(scsi_cmd), | |
849 | (u_char *) & scsi_sense, | |
850 | sizeof(scsi_sense), | |
851 | SD_RETRIES, | |
852 | 2000, | |
853 | NULL, | |
854 | flags | SCSI_DATA_IN) != 0) { | |
855 | ||
d4284689 RG |
856 | printf("sd%d could not mode sense (4).", unit); |
857 | printf(" Using ficticious geometry\n"); | |
98639498 RG |
858 | /* |
859 | * use adaptec standard ficticious geometry | |
d4284689 RG |
860 | * this depends on which controller (e.g. 1542C is |
861 | * different. but we have to put SOMETHING here..) | |
98639498 | 862 | */ |
15637ed4 RG |
863 | sectors = sd_size(unit, flags); |
864 | disk_parms->heads = 64; | |
865 | disk_parms->sectors = 32; | |
519fb2b7 | 866 | disk_parms->cyls = sectors / (64 * 32); |
15637ed4 | 867 | disk_parms->secsiz = SECSIZE; |
98639498 | 868 | disk_parms->disksize = sectors; |
519fb2b7 | 869 | } else { |
d4284689 | 870 | |
519fb2b7 RG |
871 | SC_DEBUG(sd->sc_link, SDEV_DB3, |
872 | ("%d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n", | |
15637ed4 RG |
873 | _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2), |
874 | scsi_sense.pages.rigid_geometry.nheads, | |
875 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_wp), | |
876 | b2tol(scsi_sense.pages.rigid_geometry.st_cyl_rwc), | |
519fb2b7 RG |
877 | b2tol(scsi_sense.pages.rigid_geometry.land_zone))); |
878 | ||
879 | /* | |
880 | * KLUDGE!!(for zone recorded disks) | |
881 | * give a number of sectors so that sec * trks * cyls | |
882 | * is <= disk_size | |
883 | * can lead to wasted space! THINK ABOUT THIS ! | |
884 | */ | |
15637ed4 RG |
885 | disk_parms->heads = scsi_sense.pages.rigid_geometry.nheads; |
886 | disk_parms->cyls = _3btol(&scsi_sense.pages.rigid_geometry.ncyl_2); | |
519fb2b7 | 887 | disk_parms->secsiz = _3btol(scsi_sense.blk_desc.blklen); |
15637ed4 RG |
888 | |
889 | sectors = sd_size(unit, flags); | |
98639498 | 890 | disk_parms->disksize = sectors; |
4d486ab8 AS |
891 | /* Check if none of these values are zero */ |
892 | if(disk_parms->heads && disk_parms->cyls) { | |
893 | sectors /= (disk_parms->heads * disk_parms->cyls); | |
894 | } | |
895 | else { | |
896 | /* set it to something reasonable */ | |
897 | sectors = 32; | |
898 | disk_parms->heads = 64; | |
899 | disk_parms->cyls = sectors / (64 * 32); | |
900 | } | |
519fb2b7 | 901 | disk_parms->sectors = sectors; /* dubious on SCSI *//*XXX */ |
15637ed4 | 902 | } |
519fb2b7 RG |
903 | sd->sc_link->flags |= SDEV_MEDIA_LOADED; |
904 | return 0; | |
15637ed4 RG |
905 | } |
906 | ||
519fb2b7 RG |
907 | int |
908 | sdsize(dev_t dev) | |
15637ed4 | 909 | { |
519fb2b7 | 910 | u_int32 unit = UNIT(dev), part = PARTITION(dev), val; |
d4284689 | 911 | struct sd_data *sd; |
15637ed4 | 912 | |
519fb2b7 RG |
913 | if (unit >= NSD) |
914 | return -1; | |
d4284689 | 915 | |
519fb2b7 RG |
916 | sd = sd_data[unit]; |
917 | if (!sd) | |
918 | return -1; | |
919 | if ((sd->flags & SDINIT) == 0) | |
920 | return -1; | |
921 | if (sd == 0 || (sd->flags & SDHAVELABEL) == 0) { | |
922 | val = sdopen(MAKESDDEV(major(dev), unit, RAW_PART), FREAD, S_IFBLK, 0); | |
923 | if (val != 0) | |
924 | return -1; | |
15637ed4 | 925 | } |
519fb2b7 RG |
926 | if (sd->flags & SDWRITEPROT) |
927 | return -1; | |
15637ed4 | 928 | |
519fb2b7 | 929 | return (int)sd->disklabel.d_partitions[part].p_size; |
15637ed4 RG |
930 | } |
931 | ||
519fb2b7 RG |
932 | /* |
933 | * dump all of physical memory into the partition specified, starting | |
934 | * at offset 'dumplo' into the partition. | |
935 | */ | |
936 | errval | |
937 | sddump(dev_t dev) | |
938 | { /* dump core after a system crash */ | |
98639498 | 939 | register struct sd_data *sd; /* disk unit to do the IO */ |
519fb2b7 RG |
940 | int32 num; /* number of sectors to write */ |
941 | u_int32 unit, part; | |
942 | int32 blkoff, blknum, blkcnt = MAXTRANSFER; | |
943 | int32 nblocks; | |
98639498 | 944 | char *addr; |
519fb2b7 | 945 | struct scsi_rw_big cmd; |
98639498 | 946 | extern int Maxmem; |
519fb2b7 | 947 | static int sddoingadump = 0; |
16656850 RG |
948 | extern caddr_t CADDR1; /* map the page we are about to write, here */ |
949 | extern struct pte *CMAP1; | |
519fb2b7 RG |
950 | struct scsi_xfer *xs = &sx; |
951 | errval retval; | |
952 | int c; | |
98639498 | 953 | |
519fb2b7 | 954 | addr = (char *) 0; /* starting address */ |
98639498 RG |
955 | |
956 | /* toss any characters present prior to dump */ | |
519fb2b7 | 957 | while ((c = sgetc(1)) && (c != 0x100)); /*syscons and pccons differ */ |
98639498 RG |
958 | |
959 | /* size of memory to dump */ | |
960 | num = Maxmem; | |
519fb2b7 RG |
961 | unit = UNIT(dev); /* eventually support floppies? */ |
962 | part = PARTITION(dev); /* file system */ | |
98639498 | 963 | /* check for acceptable drive number */ |
519fb2b7 | 964 | if (unit >= NSD) |
16656850 | 965 | return (ENXIO); |
98639498 | 966 | |
d4284689 | 967 | sd = sd_data[unit]; |
519fb2b7 RG |
968 | if (!sd) |
969 | return (ENXIO); | |
98639498 | 970 | /* was it ever initialized etc. ? */ |
519fb2b7 RG |
971 | if (!(sd->flags & SDINIT)) |
972 | return (ENXIO); | |
973 | if (sd->sc_link->flags & SDEV_MEDIA_LOADED != SDEV_MEDIA_LOADED) | |
974 | return (ENXIO); | |
975 | if (sd->flags & SDWRITEPROT) | |
976 | return (ENXIO); | |
a0becc21 | 977 | |
98639498 | 978 | /* Convert to disk sectors */ |
519fb2b7 | 979 | num = (u_int32) num * NBPG / sd->disklabel.d_secsize; |
a0becc21 | 980 | |
98639498 | 981 | /* check if controller active */ |
519fb2b7 RG |
982 | if (sddoingadump) |
983 | return (EFAULT); | |
a0becc21 | 984 | |
98639498 RG |
985 | nblocks = sd->disklabel.d_partitions[part].p_size; |
986 | blkoff = sd->disklabel.d_partitions[part].p_offset; | |
a0becc21 | 987 | |
98639498 RG |
988 | /* check transfer bounds against partition size */ |
989 | if ((dumplo < 0) || ((dumplo + num) > nblocks)) | |
519fb2b7 | 990 | return (EINVAL); |
98639498 | 991 | |
519fb2b7 | 992 | sddoingadump = 1; |
98639498 RG |
993 | |
994 | blknum = dumplo + blkoff; | |
519fb2b7 | 995 | while (num > 0) { |
16656850 | 996 | *(int *)CMAP1 = |
9ad9c554 | 997 | PG_V | PG_KW | trunc_page(addr); |
16656850 | 998 | tlbflush(); |
519fb2b7 RG |
999 | /* |
1000 | * Fill out the scsi command | |
1001 | */ | |
98639498 | 1002 | bzero(&cmd, sizeof(cmd)); |
519fb2b7 RG |
1003 | cmd.op_code = WRITE_BIG; |
1004 | cmd.addr_3 = (blknum & 0xff000000) >> 24; | |
1005 | cmd.addr_2 = (blknum & 0xff0000) >> 16; | |
1006 | cmd.addr_1 = (blknum & 0xff00) >> 8; | |
1007 | cmd.addr_0 = blknum & 0xff; | |
1008 | cmd.length2 = (blkcnt & 0xff00) >> 8; | |
1009 | cmd.length1 = (blkcnt & 0xff); | |
1010 | /* | |
1011 | * Fill out the scsi_xfer structure | |
1012 | * Note: we cannot sleep as we may be an interrupt | |
1013 | * don't use scsi_scsi_cmd() as it may want | |
1014 | * to wait for an xs. | |
1015 | */ | |
98639498 | 1016 | bzero(xs, sizeof(sx)); |
519fb2b7 RG |
1017 | xs->flags |= SCSI_NOMASK | SCSI_NOSLEEP | INUSE; |
1018 | xs->sc_link = sd->sc_link; | |
1019 | xs->retries = SD_RETRIES; | |
1020 | xs->timeout = 10000; /* 10000 millisecs for a disk ! */ | |
1021 | xs->cmd = (struct scsi_generic *) &cmd; | |
1022 | xs->cmdlen = sizeof(cmd); | |
1023 | xs->resid = blkcnt * 512; | |
1024 | xs->error = XS_NOERROR; | |
1025 | xs->bp = 0; | |
16656850 | 1026 | xs->data = (u_char *) CADDR1; |
519fb2b7 RG |
1027 | xs->datalen = blkcnt * 512; |
1028 | ||
1029 | /* | |
1030 | * Pass all this info to the scsi driver. | |
1031 | */ | |
1032 | retval = (*(sd->sc_link->adapter->scsi_cmd)) (xs); | |
1033 | switch (retval) { | |
1034 | case SUCCESSFULLY_QUEUED: | |
1035 | case HAD_ERROR: | |
1036 | return (ENXIO); /* we said not to sleep! */ | |
1037 | case COMPLETE: | |
98639498 RG |
1038 | break; |
1039 | default: | |
519fb2b7 | 1040 | return (ENXIO); /* we said not to sleep! */ |
98639498 | 1041 | } |
519fb2b7 RG |
1042 | |
1043 | if ((unsigned) addr % (1024 * 1024) == 0) | |
1044 | printf("%d ", num / 2048); | |
98639498 | 1045 | /* update block count */ |
519fb2b7 RG |
1046 | num -= blkcnt; |
1047 | blknum += blkcnt; | |
1048 | (int) addr += 512 * blkcnt; | |
98639498 RG |
1049 | |
1050 | /* operator aborting dump? */ | |
519fb2b7 RG |
1051 | if ((c = sgetc(1)) && (c != 0x100)) |
1052 | return (EINTR); | |
98639498 | 1053 | } |
519fb2b7 | 1054 | return (0); |
98639498 | 1055 | } |