| 1 | /* |
| 2 | * Written by Julian Elischer (julian@dialix.oz.au) |
| 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 | * |
| 15 | * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992 |
| 16 | * |
| 17 | * $Id: sd.c,v 1.9 1993/09/20 06:27:04 rgrimes Exp $ |
| 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 | |
| 71 | #ifdef SDDEBUG |
| 72 | int sd_debug = 0; |
| 73 | #endif /*SDDEBUG*/ |
| 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 */ |
| 108 | }*sd_data[NSD]; |
| 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++; |
| 128 | #ifdef SDDEBUG |
| 129 | if(scsi_debug & PRINTROUTINES) printf("sdattach: "); |
| 130 | #endif /*SDDEBUG*/ |
| 131 | /*******************************************************\ |
| 132 | * Check we have the resources for another drive * |
| 133 | \*******************************************************/ |
| 134 | if( unit >= NSD) |
| 135 | { |
| 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); |
| 142 | return(0); |
| 143 | } |
| 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); |
| 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); |
| 190 | printf("sd%d: %dMB (%d total sec), %d cyl, %d head, %d sec, bytes/sec %d\n", |
| 191 | unit, |
| 192 | dp->disksize / ((1024L * 1024L) / dp->secsiz), |
| 193 | dp->disksize, |
| 194 | dp->cyls, |
| 195 | dp->heads, |
| 196 | dp->sectors, |
| 197 | dp->secsiz); |
| 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); |
| 218 | sd = sd_data[unit]; |
| 219 | #ifdef SDDEBUG |
| 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 | #endif /*SDDEBUG*/ |
| 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 | /*******************************************************\ |
| 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. * |
| 254 | \*******************************************************/ |
| 255 | sd_test_unit_ready(unit,0); |
| 256 | |
| 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); |
| 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 |
| 274 | if(scsi_debug & TRACEOPENS) |
| 275 | printf("device ok\n"); |
| 276 | #endif /*SDDEBUG*/ |
| 277 | |
| 278 | /*******************************************************\ |
| 279 | * Load the physical device parameters * |
| 280 | \*******************************************************/ |
| 281 | sd_get_parms(unit, 0); /* sets SDVALID */ |
| 282 | if (sd->params.secsiz != SECSIZE) /* XXX One day...*/ |
| 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 | } |
| 289 | #ifdef SDDEBUG |
| 290 | if(scsi_debug & TRACEOPENS) |
| 291 | printf("Params loaded "); |
| 292 | #endif /*SDDEBUG*/ |
| 293 | /*******************************************************\ |
| 294 | * Load the partition info if not already loaded * |
| 295 | * Lock the pack in * |
| 296 | \*******************************************************/ |
| 297 | sd_prevent(unit,PR_PREVENT,SCSI_ERR_OK|SCSI_SILENT); |
| 298 | if((errcode = sdgetdisklabel(unit)) && (part != RAW_PART)) |
| 299 | { |
| 300 | sd_prevent(unit,PR_ALLOW,SCSI_ERR_OK|SCSI_SILENT); |
| 301 | return(errcode); |
| 302 | } |
| 303 | #ifdef SDDEBUG |
| 304 | if(scsi_debug & TRACEOPENS) |
| 305 | printf("Disklabel loaded "); |
| 306 | #endif /*SDDEBUG*/ |
| 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 | } |
| 314 | #ifdef SDDEBUG |
| 315 | if(scsi_debug & TRACEOPENS) |
| 316 | printf("ok"); |
| 317 | #endif /*SDDEBUG*/ |
| 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); |
| 329 | #ifdef SDDEBUG |
| 330 | if(scsi_debug & TRACEOPENS) |
| 331 | printf("open %d %d\n",sdstrats,sdqueues); |
| 332 | #endif /*SDDEBUG*/ |
| 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 | { |
| 412 | (*(sd_data[UNIT(bp->b_dev)]->sc_sw->scsi_minphys))(bp); |
| 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)); |
| 432 | sd = sd_data[unit]; |
| 433 | #ifdef SDDEBUG |
| 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); |
| 437 | #endif /*SDDEBUG*/ |
| 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, * |
| 514 | * It dequeues the buf and creates a scsi command to perform the * |
| 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; |
| 536 | struct sd_data *sd = sd_data[unit]; |
| 537 | struct partition *p ; |
| 538 | |
| 539 | #ifdef SDDEBUG |
| 540 | if(scsi_debug & PRINTROUTINES) printf("sdstart%d ",unit); |
| 541 | #endif /*SDDEBUG*/ |
| 542 | /*******************************************************\ |
| 543 | * Check if the device is already running full capacity * |
| 544 | \*******************************************************/ |
| 545 | if(!sd_free_xfer[unit]) |
| 546 | { |
| 547 | return; /* none for us, unit already underway */ |
| 548 | } |
| 549 | |
| 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]) |
| 556 | { |
| 557 | return; |
| 558 | } |
| 559 | |
| 560 | /*******************************************************\ |
| 561 | * See if there is a buf with work for us to do.. * |
| 562 | \*******************************************************/ |
| 563 | dp = &sd_buf_queue[unit]; |
| 564 | if ((bp = dp->b_actf) == NULL) /* yes, an assign */ |
| 565 | { |
| 566 | return; |
| 567 | } |
| 568 | |
| 569 | dp->b_actf = bp->av_forw; |
| 570 | |
| 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 | { |
| 578 | goto bad; |
| 579 | } |
| 580 | /*******************************************************\ |
| 581 | * We have a buf, now we know we are going to go through * |
| 582 | * With this thing.. * |
| 583 | * * |
| 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 | /*******************************************************\ |
| 603 | * Call the routine that chats with the adapter * |
| 604 | * Note: we cannot sleep as we may be an interrupt * |
| 605 | \*******************************************************/ |
| 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) |
| 616 | { |
| 617 | bad: |
| 618 | printf("sd%d: oops not queued",unit); |
| 619 | bp->b_error = EIO; |
| 620 | bp->b_flags |= B_ERROR; |
| 621 | biodone(bp); |
| 622 | return ; |
| 623 | } |
| 624 | sdqueues++; |
| 625 | } |
| 626 | |
| 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); |
| 645 | sd = sd_data[unit]; |
| 646 | #ifdef SDDEBUG |
| 647 | if(scsi_debug & PRINTROUTINES) printf("sdioctl%d ",unit); |
| 648 | #endif /*SDDEBUG*/ |
| 649 | |
| 650 | /*******************************************************\ |
| 651 | * If the device is not valid.. abandon ship * |
| 652 | \*******************************************************/ |
| 653 | if (!(sd->flags & SDVALID)) |
| 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; |
| 737 | struct sd_data *sd = sd_data[unit]; |
| 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 * |
| 748 | * for historical reasons, make part a same as raw part * |
| 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 */ |
| 764 | /* readdisklabel divides by it (?)*/ |
| 765 | } |
| 766 | |
| 767 | /*******************************************************\ |
| 768 | * Call the generic disklabel extraction routine * |
| 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 | } |
| 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), |
| 810 | 6000, |
| 811 | NULL, |
| 812 | flags | SCSI_DATA_IN) != 0) |
| 813 | { |
| 814 | printf("sd%d: could not get size\n", unit); |
| 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, |
| 842 | NULL, |
| 843 | flags)); |
| 844 | } |
| 845 | |
| 846 | /*******************************************************\ |
| 847 | * Prevent or allow the user to remove the tape * |
| 848 | * Don't change this status if any partitions are open * |
| 849 | \*******************************************************/ |
| 850 | sd_prevent(unit,type,flags) |
| 851 | int unit,type,flags; |
| 852 | { |
| 853 | struct scsi_prevent scsi_cmd; |
| 854 | |
| 855 | if(sd_data[unit]->openparts) return; |
| 856 | |
| 857 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 858 | scsi_cmd.op_code = PREVENT_ALLOW; |
| 859 | scsi_cmd.how=type; |
| 860 | return (sd_scsi_cmd(unit, |
| 861 | &scsi_cmd, |
| 862 | sizeof(scsi_cmd), |
| 863 | 0, |
| 864 | 0, |
| 865 | 5000, |
| 866 | NULL, |
| 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; |
| 879 | scsi_cmd.how = SSS_START; |
| 880 | |
| 881 | return (sd_scsi_cmd(unit, |
| 882 | &scsi_cmd, |
| 883 | sizeof(scsi_cmd), |
| 884 | 0, |
| 885 | 0, |
| 886 | 2000, |
| 887 | NULL, |
| 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, |
| 917 | NULL, |
| 918 | SCSI_DATA_OUT)); |
| 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 | { |
| 931 | struct sd_data *sd = sd_data[unit]; |
| 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 | \*******************************************************/ |
| 949 | #ifdef SDDEBUG |
| 950 | if (sd_debug) |
| 951 | { |
| 952 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 953 | scsi_cmd.op_code = MODE_SENSE; |
| 954 | scsi_cmd.page = 3; |
| 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, |
| 966 | NULL, |
| 967 | flags | SCSI_DATA_IN) != 0) |
| 968 | { |
| 969 | printf("sd%d: could not mode sense (3)\n", unit); |
| 970 | } |
| 971 | else |
| 972 | { |
| 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)); |
| 985 | } |
| 986 | } |
| 987 | #endif /*SDDEBUG*/ |
| 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; |
| 995 | scsi_cmd.page = 4; |
| 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, |
| 1007 | NULL, |
| 1008 | flags | SCSI_DATA_IN) != 0) |
| 1009 | { |
| 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 | */ |
| 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; |
| 1022 | disk_parms->disksize = sectors; |
| 1023 | } |
| 1024 | else |
| 1025 | { |
| 1026 | |
| 1027 | #ifdef SDDEBUG |
| 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 | } |
| 1037 | #endif /*SDDEBUG*/ |
| 1038 | |
| 1039 | /*******************************************************\ |
| 1040 | * KLUDGE!!(for zone recorded disks) * |
| 1041 | * give a number of sectors so that sec * trks * cyls * |
| 1042 | * is <= disk_size * |
| 1043 | * can lead to wasted space! THINK ABOUT THIS ! * |
| 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); |
| 1050 | disk_parms->disksize = sectors; |
| 1051 | sectors /= (disk_parms->heads * disk_parms->cyls); |
| 1052 | disk_parms->sectors = sectors; /* dubious on SCSI*//*XXX*/ |
| 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 * |
| 1062 | * convenient now but usually a pain * |
| 1063 | \*******************************************************/ |
| 1064 | sdclose(dev) |
| 1065 | dev_t dev; |
| 1066 | { |
| 1067 | unsigned char unit, part; |
| 1068 | unsigned int old_priority; |
| 1069 | struct sd_data *sd; |
| 1070 | |
| 1071 | unit = UNIT(dev); |
| 1072 | part = PARTITION(dev); |
| 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) |
| 1100 | { |
| 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; |
| 1108 | } |
| 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 */ |
| 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 * |
| 1173 | * and how long it is. * |
| 1174 | * Also tell it where to read/write the data, and how * |
| 1175 | * long the data is supposed to be. If we have a buf * |
| 1176 | * to associate with the transfer, we need that too. * |
| 1177 | \*******************************************************/ |
| 1178 | int sd_scsi_cmd(unit,scsi_cmd,cmdlen,data_addr,datalen,timeout,bp,flags) |
| 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; |
| 1186 | struct buf *bp; |
| 1187 | { |
| 1188 | struct scsi_xfer *xs; |
| 1189 | int retval; |
| 1190 | int s; |
| 1191 | struct sd_data *sd = sd_data[unit]; |
| 1192 | |
| 1193 | #ifdef SDDEBUG |
| 1194 | if(scsi_debug & PRINTROUTINES) printf("\nsd_scsi_cmd%d ",unit); |
| 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) |
| 1207 | { |
| 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; |
| 1232 | |
| 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 */ |
| 1270 | retval = ESUCCESS; |
| 1271 | break; |
| 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: |
| 1279 | if(xs->retries-- ) |
| 1280 | { |
| 1281 | xs->flags &= ~ITSDONE; |
| 1282 | goto retry; |
| 1283 | } |
| 1284 | case XS_DRIVER_STUFFUP: |
| 1285 | retval = EIO; |
| 1286 | break; |
| 1287 | default: |
| 1288 | retval = EIO; |
| 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; |
| 1303 | } |
| 1304 | default: |
| 1305 | retval = EIO; |
| 1306 | } |
| 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 */ |
| 1313 | return(retval); |
| 1314 | } |
| 1315 | |
| 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; |
| 1328 | long int info; |
| 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); |
| 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) |
| 1342 | { |
| 1343 | case 0x70: |
| 1344 | { |
| 1345 | key=sense->ext.extended.flags & SSD_KEY; |
| 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); |
| 1354 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1355 | { |
| 1356 | printf("block no. %d (decimal)",info); |
| 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); |
| 1369 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1370 | { |
| 1371 | printf("block no. %d (decimal)",info); |
| 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); |
| 1391 | sd_data[unit]->flags &= ~(SDVALID | SDHAVELABEL); |
| 1392 | if (sd_data[unit]->openparts) |
| 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); |
| 1402 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1403 | { |
| 1404 | printf("block no. %d (decimal)\n",info); |
| 1405 | } |
| 1406 | printf("\n"); |
| 1407 | } |
| 1408 | return(EACCES); |
| 1409 | case 0x8: |
| 1410 | if(!silent) |
| 1411 | { |
| 1412 | printf("sd%d: block wrong state (format?)\n ", |
| 1413 | unit); |
| 1414 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1415 | { |
| 1416 | printf("block no. %d (decimal)\n",info); |
| 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); |
| 1438 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1439 | { |
| 1440 | printf("block no. %d (decimal)\n",info); |
| 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); |
| 1454 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1455 | { |
| 1456 | printf("block no. %d (decimal)\n",info); |
| 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 | } |
| 1468 | default: |
| 1469 | { |
| 1470 | if(!silent)printf("sd%d: code %d\n", |
| 1471 | unit, |
| 1472 | sense->error_code & SSD_ERRCODE); |
| 1473 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 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 | |
| 1495 | sd = sd_data[unit]; |
| 1496 | if(!sd) return(-1); |
| 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 | } |
| 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 */ |
| 1516 | { |
| 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); |
| 1549 | |
| 1550 | /* Convert to disk sectors */ |
| 1551 | num = (u_long) num * NBPG / sd->disklabel.d_secsize; |
| 1552 | |
| 1553 | /* check if controller active */ |
| 1554 | if (sddoingadump) return(EFAULT); |
| 1555 | |
| 1556 | nblocks = sd->disklabel.d_partitions[part].p_size; |
| 1557 | blkoff = sd->disklabel.d_partitions[part].p_offset; |
| 1558 | |
| 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 |
| 1647 | |