1 /* $NetBSD: rf_disks.c,v 1.2 1998/12/03 15:06:25 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 /*************************************************************** 30 * rf_disks.c -- code to perform operations on the actual disks 31 ***************************************************************/ 32 33 /* : 34 * Log: rf_disks.c,v 35 * Revision 1.32 1996/07/27 18:40:24 jimz 36 * cleanup sweep 37 * 38 * Revision 1.31 1996/07/22 19:52:16 jimz 39 * switched node params to RF_DagParam_t, a union of 40 * a 64-bit int and a void *, for better portability 41 * attempted hpux port, but failed partway through for 42 * lack of a single C compiler capable of compiling all 43 * source files 44 * 45 * Revision 1.30 1996/07/19 16:11:21 jimz 46 * pass devname to DoReadCapacity 47 * 48 * Revision 1.29 1996/07/18 22:57:14 jimz 49 * port simulator to AIX 50 * 51 * Revision 1.28 1996/07/10 22:28:38 jimz 52 * get rid of obsolete row statuses (dead,degraded2) 53 * 54 * Revision 1.27 1996/06/10 12:06:14 jimz 55 * don't do any SCSI op stuff in simulator at all 56 * 57 * Revision 1.26 1996/06/10 11:55:47 jimz 58 * Straightened out some per-array/not-per-array distinctions, fixed 59 * a couple bugs related to confusion. Added shutdown lists. Removed 60 * layout shutdown function (now subsumed by shutdown lists). 61 * 62 * Revision 1.25 1996/06/09 02:36:46 jimz 63 * lots of little crufty cleanup- fixup whitespace 64 * issues, comment #ifdefs, improve typing in some 65 * places (esp size-related) 66 * 67 * Revision 1.24 1996/06/07 21:33:04 jimz 68 * begin using consistent types for sector numbers, 69 * stripe numbers, row+col numbers, recon unit numbers 70 * 71 * Revision 1.23 1996/06/03 23:28:26 jimz 72 * more bugfixes 73 * check in tree to sync for IPDS runs with current bugfixes 74 * there still may be a problem with threads in the script test 75 * getting I/Os stuck- not trivially reproducible (runs ~50 times 76 * in a row without getting stuck) 77 * 78 * Revision 1.22 1996/06/02 17:31:48 jimz 79 * Moved a lot of global stuff into array structure, where it belongs. 80 * Fixed up paritylogging, pss modules in this manner. Some general 81 * code cleanup. Removed lots of dead code, some dead files. 82 * 83 * Revision 1.21 1996/05/30 23:22:16 jimz 84 * bugfixes of serialization, timing problems 85 * more cleanup 86 * 87 * Revision 1.20 1996/05/30 11:29:41 jimz 88 * Numerous bug fixes. Stripe lock release code disagreed with the taking code 89 * about when stripes should be locked (I made it consistent: no parity, no lock) 90 * There was a lot of extra serialization of I/Os which I've removed- a lot of 91 * it was to calculate values for the cache code, which is no longer with us. 92 * More types, function, macro cleanup. Added code to properly quiesce the array 93 * on shutdown. Made a lot of stuff array-specific which was (bogusly) general 94 * before. Fixed memory allocation, freeing bugs. 95 * 96 * Revision 1.19 1996/05/27 18:56:37 jimz 97 * more code cleanup 98 * better typing 99 * compiles in all 3 environments 100 * 101 * Revision 1.18 1996/05/24 22:17:04 jimz 102 * continue code + namespace cleanup 103 * typed a bunch of flags 104 * 105 * Revision 1.17 1996/05/24 01:59:45 jimz 106 * another checkpoint in code cleanup for release 107 * time to sync kernel tree 108 * 109 * Revision 1.16 1996/05/23 21:46:35 jimz 110 * checkpoint in code cleanup (release prep) 111 * lots of types, function names have been fixed 112 * 113 * Revision 1.15 1996/05/23 00:33:23 jimz 114 * code cleanup: move all debug decls to rf_options.c, all extern 115 * debug decls to rf_options.h, all debug vars preceded by rf_ 116 * 117 * Revision 1.14 1996/05/18 19:51:34 jimz 118 * major code cleanup- fix syntax, make some types consistent, 119 * add prototypes, clean out dead code, et cetera 120 * 121 * Revision 1.13 1996/05/02 14:57:43 jimz 122 * initialize sectorMask 123 * 124 * Revision 1.12 1995/12/01 15:57:04 root 125 * added copyright info 126 * 127 */ 128 129 #include "rf_types.h" 130 #include "rf_raid.h" 131 #include "rf_alloclist.h" 132 #include "rf_utils.h" 133 #include "rf_configure.h" 134 #include "rf_general.h" 135 #if !defined(__NetBSD__) 136 #include "rf_camlayer.h" 137 #endif 138 #include "rf_options.h" 139 #include "rf_sys.h" 140 141 #if defined(__NetBSD__) && defined(_KERNEL) 142 #include <sys/types.h> 143 #include <sys/param.h> 144 #include <sys/systm.h> 145 #include <sys/proc.h> 146 #include <sys/ioctl.h> 147 #include <sys/fcntl.h> 148 #include <sys/vnode.h> 149 150 int raidlookup __P((char *, struct proc *p, struct vnode **)); 151 #endif 152 153 #ifdef SIMULATE 154 static char disk_db_file_name[120], disk_type_name[120]; 155 static double init_offset; 156 #endif /* SIMULATE */ 157 158 #define DPRINTF6(a,b,c,d,e,f) if (rf_diskDebug) printf(a,b,c,d,e,f) 159 #define DPRINTF7(a,b,c,d,e,f,g) if (rf_diskDebug) printf(a,b,c,d,e,f,g) 160 161 #include "rf_ccmn.h" 162 163 /**************************************************************************************** 164 * 165 * initialize the disks comprising the array 166 * 167 * We want the spare disks to have regular row,col numbers so that we can easily 168 * substitue a spare for a failed disk. But, the driver code assumes throughout 169 * that the array contains numRow by numCol _non-spare_ disks, so it's not clear 170 * how to fit in the spares. This is an unfortunate holdover from raidSim. The 171 * quick and dirty fix is to make row zero bigger than the rest, and put all the 172 * spares in it. This probably needs to get changed eventually. 173 * 174 ***************************************************************************************/ 175 int rf_ConfigureDisks( 176 RF_ShutdownList_t **listp, 177 RF_Raid_t *raidPtr, 178 RF_Config_t *cfgPtr) 179 { 180 RF_RaidDisk_t **disks; 181 RF_SectorCount_t min_numblks = (RF_SectorCount_t)0x7FFFFFFFFFFFLL; 182 RF_RowCol_t r, c; 183 int bs, ret; 184 unsigned i, count, foundone=0, numFailuresThisRow; 185 RF_DiskOp_t *rdcap_op = NULL, *tur_op = NULL; 186 int num_rows_done,num_cols_done; 187 188 #if defined(__NetBSD__) && defined(_KERNEL) 189 struct proc *proc = 0; 190 #endif 191 #ifndef SIMULATE 192 #ifndef __NetBSD__ 193 ret = rf_SCSI_AllocReadCapacity(&rdcap_op); 194 if (ret) 195 goto fail; 196 ret = rf_SCSI_AllocTUR(&tur_op); 197 if (ret) 198 goto fail; 199 #endif /* !__NetBSD__ */ 200 #endif /* !SIMULATE */ 201 202 num_rows_done = 0; 203 num_cols_done = 0; 204 205 206 RF_CallocAndAdd(disks, raidPtr->numRow, sizeof(RF_RaidDisk_t *), (RF_RaidDisk_t **), raidPtr->cleanupList); 207 if (disks == NULL) { 208 ret = ENOMEM; 209 goto fail; 210 } 211 raidPtr->Disks = disks; 212 213 #if defined(__NetBSD__) && defined(_KERNEL) 214 215 proc = raidPtr->proc; /* Blah XXX */ 216 217 /* get space for the device-specific stuff... */ 218 RF_CallocAndAdd(raidPtr->raid_cinfo, raidPtr->numRow, 219 sizeof(struct raidcinfo *), (struct raidcinfo **), 220 raidPtr->cleanupList); 221 if (raidPtr->raid_cinfo == NULL) { 222 ret = ENOMEM; 223 goto fail; 224 } 225 #endif 226 227 for (r=0; r<raidPtr->numRow; r++) { 228 numFailuresThisRow = 0; 229 RF_CallocAndAdd(disks[r], raidPtr->numCol + ((r==0) ? raidPtr->numSpare : 0), sizeof(RF_RaidDisk_t), (RF_RaidDisk_t *), raidPtr->cleanupList); 230 if (disks[r] == NULL) { 231 ret = ENOMEM; 232 goto fail; 233 } 234 235 /* get more space for device specific stuff.. */ 236 RF_CallocAndAdd(raidPtr->raid_cinfo[r], 237 raidPtr->numCol + ((r==0) ? raidPtr->numSpare : 0), 238 sizeof(struct raidcinfo), (struct raidcinfo *), 239 raidPtr->cleanupList); 240 if (raidPtr->raid_cinfo[r] == NULL) { 241 ret = ENOMEM; 242 goto fail; 243 } 244 245 246 for (c=0; c<raidPtr->numCol; c++) { 247 ret = rf_ConfigureDisk(raidPtr,&cfgPtr->devnames[r][c][0], 248 &disks[r][c], rdcap_op, tur_op, 249 cfgPtr->devs[r][c],r,c); 250 if (ret) 251 goto fail; 252 if (disks[r][c].status != rf_ds_optimal) { 253 numFailuresThisRow++; 254 } 255 else { 256 if (disks[r][c].numBlocks < min_numblks) 257 min_numblks = disks[r][c].numBlocks; 258 DPRINTF7("Disk at row %d col %d: dev %s numBlocks %ld blockSize %d (%ld MB)\n", 259 r,c,disks[r][c].devname, 260 (long int) disks[r][c].numBlocks, 261 disks[r][c].blockSize, 262 (long int) disks[r][c].numBlocks * disks[r][c].blockSize / 1024 / 1024); 263 } 264 num_cols_done++; 265 } 266 /* XXX fix for n-fault tolerant */ 267 if (numFailuresThisRow > 0) 268 raidPtr->status[r] = rf_rs_degraded; 269 num_rows_done++; 270 } 271 #ifndef SIMULATE 272 #if defined(__NetBSD__) && defined(_KERNEL) 273 /* we do nothing */ 274 #else 275 rf_SCSI_FreeDiskOp(rdcap_op, 1); rdcap_op = NULL; 276 rf_SCSI_FreeDiskOp(tur_op, 0); tur_op = NULL; 277 #endif 278 #endif /* !SIMULATE */ 279 /* all disks must be the same size & have the same block size, bs must be a power of 2 */ 280 bs = 0; 281 for (foundone=r=0; !foundone && r<raidPtr->numRow; r++) { 282 for (c=0; !foundone && c<raidPtr->numCol; c++) { 283 if (disks[r][c].status == rf_ds_optimal) { 284 bs = disks[r][c].blockSize; 285 foundone = 1; 286 } 287 } 288 } 289 if (!foundone) { 290 RF_ERRORMSG("RAIDFRAME: Did not find any live disks in the array.\n"); 291 ret = EINVAL; 292 goto fail; 293 } 294 for (count=0,i=1; i; i<<=1) if (bs & i) 295 count++; 296 if (count != 1) { 297 RF_ERRORMSG1("Error: block size on disks (%d) must be a power of 2\n",bs); 298 ret = EINVAL; 299 goto fail; 300 } 301 for (r=0; r<raidPtr->numRow; r++) { 302 for (c=0; c<raidPtr->numCol; c++) { 303 if (disks[r][c].status == rf_ds_optimal) { 304 if (disks[r][c].blockSize != bs) { 305 RF_ERRORMSG2("Error: block size of disk at r %d c %d different from disk at r 0 c 0\n",r,c); 306 ret = EINVAL; 307 goto fail; 308 } 309 if (disks[r][c].numBlocks != min_numblks) { 310 RF_ERRORMSG3("WARNING: truncating disk at r %d c %d to %d blocks\n", 311 r,c,(int) min_numblks); 312 disks[r][c].numBlocks = min_numblks; 313 } 314 } 315 } 316 } 317 318 raidPtr->sectorsPerDisk = min_numblks; 319 raidPtr->logBytesPerSector = ffs(bs) - 1; 320 raidPtr->bytesPerSector = bs; 321 raidPtr->sectorMask = bs-1; 322 return(0); 323 324 fail: 325 326 #ifndef SIMULATE 327 #if defined(__NetBSD__) && defined(_KERNEL) 328 329 for(r=0;r<raidPtr->numRow;r++) { 330 for(c=0;c<raidPtr->numCol;c++) { 331 /* Cleanup.. */ 332 #ifdef DEBUG 333 printf("Cleaning up row: %d col: %d\n",r,c); 334 #endif 335 if (raidPtr->raid_cinfo[r][c].ci_vp) { 336 (void)vn_close(raidPtr->raid_cinfo[r][c].ci_vp, 337 FREAD|FWRITE, proc->p_ucred, proc); 338 } 339 } 340 } 341 /* Space allocated for raid_vpp will get cleaned up at some other point */ 342 /* XXX Need more #ifdefs in the above... */ 343 344 #else 345 346 if (rdcap_op) rf_SCSI_FreeDiskOp(rdcap_op, 1); 347 if (tur_op) rf_SCSI_FreeDiskOp(tur_op, 0); 348 349 #endif 350 #endif /* !SIMULATE */ 351 return(ret); 352 } 353 354 355 /**************************************************************************************** 356 * set up the data structures describing the spare disks in the array 357 * recall from the above comment that the spare disk descriptors are stored 358 * in row zero, which is specially expanded to hold them. 359 ***************************************************************************************/ 360 int rf_ConfigureSpareDisks( 361 RF_ShutdownList_t **listp, 362 RF_Raid_t *raidPtr, 363 RF_Config_t *cfgPtr) 364 { 365 char buf[256]; 366 int r,c,i, ret; 367 RF_DiskOp_t *rdcap_op = NULL, *tur_op = NULL; 368 unsigned bs; 369 RF_RaidDisk_t *disks; 370 int num_spares_done; 371 372 #if defined(__NetBSD__) && defined(_KERNEL) 373 struct proc *proc; 374 #endif 375 376 #ifndef SIMULATE 377 #ifndef __NetBSD__ 378 ret = rf_SCSI_AllocReadCapacity(&rdcap_op); 379 if (ret) 380 goto fail; 381 ret = rf_SCSI_AllocTUR(&tur_op); 382 if (ret) 383 goto fail; 384 #endif /* !__NetBSD__ */ 385 #endif /* !SIMULATE */ 386 387 num_spares_done = 0; 388 389 #if defined(__NetBSD__) && defined(_KERNEL) 390 proc = raidPtr->proc; 391 /* The space for the spares should have already been 392 allocated by ConfigureDisks() */ 393 #endif 394 395 disks = &raidPtr->Disks[0][raidPtr->numCol]; 396 for (i=0; i<raidPtr->numSpare; i++) { 397 ret = rf_ConfigureDisk(raidPtr,&cfgPtr->spare_names[i][0], 398 &disks[i], rdcap_op, tur_op, 399 cfgPtr->spare_devs[i],0,raidPtr->numCol+i); 400 if (ret) 401 goto fail; 402 if (disks[i].status != rf_ds_optimal) { 403 RF_ERRORMSG1("Warning: spare disk %s failed TUR\n",buf); 404 } else { 405 disks[i].status = rf_ds_spare; /* change status to spare */ 406 DPRINTF6("Spare Disk %d: dev %s numBlocks %ld blockSize %d (%ld MB)\n",i, 407 disks[i].devname, 408 (long int) disks[i].numBlocks,disks[i].blockSize, 409 (long int) disks[i].numBlocks * disks[i].blockSize / 1024 / 1024); 410 } 411 num_spares_done++; 412 } 413 #ifndef SIMULATE 414 #if defined(__NetBSD__) && (_KERNEL) 415 416 #else 417 rf_SCSI_FreeDiskOp(rdcap_op, 1); rdcap_op = NULL; 418 rf_SCSI_FreeDiskOp(tur_op, 0); tur_op = NULL; 419 #endif 420 #endif /* !SIMULATE */ 421 422 /* check sizes and block sizes on spare disks */ 423 bs = 1 << raidPtr->logBytesPerSector; 424 for (i=0; i<raidPtr->numSpare; i++) { 425 if (disks[i].blockSize != bs) { 426 RF_ERRORMSG3("Block size of %d on spare disk %s is not the same as on other disks (%d)\n",disks[i].blockSize, disks[i].devname, bs); 427 ret = EINVAL; 428 goto fail; 429 } 430 if (disks[i].numBlocks < raidPtr->sectorsPerDisk) { 431 RF_ERRORMSG3("Spare disk %s (%d blocks) is too small to serve as a spare (need %ld blocks)\n", 432 disks[i].devname, disks[i].blockSize, (long int)raidPtr->sectorsPerDisk); 433 ret = EINVAL; 434 goto fail; 435 } else if (disks[i].numBlocks > raidPtr->sectorsPerDisk) { 436 RF_ERRORMSG2("Warning: truncating spare disk %s to %ld blocks\n",disks[i].devname, (long int) raidPtr->sectorsPerDisk); 437 438 disks[i].numBlocks = raidPtr->sectorsPerDisk; 439 } 440 } 441 442 return(0); 443 444 fail: 445 #ifndef SIMULATE 446 #if defined(__NetBSD__) && defined(_KERNEL) 447 448 /* Release the hold on the main components. We've failed to allocate a 449 spare, and since we're failing, we need to free things.. */ 450 451 for(r=0;r<raidPtr->numRow;r++) { 452 for(c=0;c<raidPtr->numCol;c++) { 453 /* Cleanup.. */ 454 #ifdef DEBUG 455 printf("Cleaning up row: %d col: %d\n",r,c); 456 #endif 457 if (raidPtr->raid_cinfo[r][c].ci_vp) { 458 (void)vn_close(raidPtr->raid_cinfo[r][c].ci_vp, 459 FREAD|FWRITE, proc->p_ucred, proc); 460 } 461 } 462 } 463 464 for(i=0;i<raidPtr->numSpare;i++) { 465 /* Cleanup.. */ 466 #ifdef DEBUG 467 printf("Cleaning up spare: %d\n",i); 468 #endif 469 if (raidPtr->raid_cinfo[0][raidPtr->numCol+i].ci_vp) { 470 (void)vn_close(raidPtr->raid_cinfo[0][raidPtr->numCol+i].ci_vp, 471 FREAD|FWRITE, proc->p_ucred, proc); 472 } 473 } 474 475 #else 476 477 if (rdcap_op) rf_SCSI_FreeDiskOp(rdcap_op, 1); 478 if (tur_op) rf_SCSI_FreeDiskOp(tur_op, 0); 479 480 #endif 481 482 #endif /* !SIMULATE */ 483 return(ret); 484 } 485 486 487 488 /* configure a single disk in the array */ 489 int rf_ConfigureDisk(raidPtr, buf, diskPtr, rdcap_op, tur_op, dev, row, col) 490 RF_Raid_t *raidPtr; /* We need this down here too!! GO */ 491 char *buf; 492 RF_RaidDisk_t *diskPtr; 493 RF_DiskOp_t *rdcap_op; 494 RF_DiskOp_t *tur_op; 495 dev_t dev; /* device number used only in kernel */ 496 RF_RowCol_t row; 497 RF_RowCol_t col; 498 { 499 char *p; 500 #ifdef SIMULATE 501 double init_offset; 502 #else /* SIMULATE */ 503 #if defined(__NetBSD__) && defined(_KERNEL) 504 int retcode; 505 #else 506 int busid, targid, lun, retcode; 507 #endif 508 #endif /* SIMULATE */ 509 510 #if defined(__NetBSD__) && defined(_KERNEL) 511 struct partinfo dpart; 512 struct vnode *vp; 513 struct vattr va; 514 struct proc *proc; 515 int error; 516 #endif 517 518 retcode = 0; 519 p = rf_find_non_white(buf); 520 if (p[strlen(p)-1] == '\n') { 521 /* strip off the newline */ 522 p[strlen(p)-1] = '\0'; 523 } 524 (void) strcpy(diskPtr->devname, p); 525 526 #ifdef SIMULATE 527 528 init_offset = 0.0; 529 rf_InitDisk(&diskPtr->diskState, disk_db_file_name,diskPtr->devname,0,0,init_offset,row,col); 530 rf_GeometryDoReadCapacity(&diskPtr->diskState, &diskPtr->numBlocks, &diskPtr->blockSize); 531 diskPtr->numBlocks = diskPtr->numBlocks * rf_sizePercentage / 100; 532 533 /* we allow the user to specify that only a fraction of the disks should be used 534 * this is just for debug: it speeds up the parity scan 535 */ 536 537 #else /* SIMULATE */ 538 #ifndef __NetBSD__ 539 /* get bus, target, lun */ 540 retcode = rf_extract_ids(p, &busid, &targid, &lun); 541 if (retcode) 542 return(retcode); 543 544 /* required in kernel, nop at user level */ 545 retcode = rf_SCSI_OpenUnit(dev); 546 if (retcode) 547 return(retcode); 548 549 diskPtr->dev = dev; 550 if (rf_SCSI_DoTUR(tur_op, (u_char)busid, (u_char)targid, (u_char)lun, dev)) { 551 RF_ERRORMSG1("Disk %s failed TUR. Marked as dead.\n",diskPtr->devname); 552 diskPtr->status = rf_ds_failed; 553 } else { 554 diskPtr->status = rf_ds_optimal; 555 retcode = rf_SCSI_DoReadCapacity(raidPtr,rdcap_op, busid, targid, lun, dev, 556 &diskPtr->numBlocks, &diskPtr->blockSize, diskPtr->devname); 557 if (retcode) 558 return(retcode); 559 560 /* we allow the user to specify that only a fraction of the disks should be used 561 * this is just for debug: it speeds up the parity scan 562 */ 563 diskPtr->numBlocks = diskPtr->numBlocks * rf_sizePercentage / 100; 564 } 565 #endif 566 #if defined(__NetBSD__) && defined(_KERNEL) 567 568 proc = raidPtr->proc; /* XXX Yes, this is not nice.. */ 569 570 /* Let's start by claiming the component is fine and well... */ 571 /* XXX not the case if the disk is toast.. */ 572 diskPtr->status = rf_ds_optimal; 573 574 575 raidPtr->raid_cinfo[row][col].ci_vp = NULL; 576 raidPtr->raid_cinfo[row][col].ci_dev = NULL; 577 578 error = raidlookup(diskPtr->devname, proc, &vp); 579 if (error) { 580 printf("raidlookup on device: %s failed!\n",diskPtr->devname); 581 if (error == ENXIO) { 582 /* XXX the component isn't there... must be dead :-( */ 583 diskPtr->status = rf_ds_failed; 584 } else { 585 return(error); 586 } 587 } 588 589 if (diskPtr->status == rf_ds_optimal) { 590 591 if ((error = VOP_GETATTR(vp, &va, proc->p_ucred, proc)) != 0) { 592 return(error); 593 } 594 595 error = VOP_IOCTL(vp, DIOCGPART, (caddr_t)&dpart, 596 FREAD, proc->p_ucred, proc); 597 if (error) { 598 return(error); 599 } 600 601 602 diskPtr->blockSize = dpart.disklab->d_secsize; 603 604 diskPtr->numBlocks = dpart.part->p_size - rf_protectedSectors; 605 606 raidPtr->raid_cinfo[row][col].ci_vp = vp; 607 raidPtr->raid_cinfo[row][col].ci_dev = va.va_rdev; 608 609 #if 0 610 diskPtr->dev = dev; 611 #endif 612 613 diskPtr->dev = va.va_rdev; /* XXX or the above? */ 614 615 /* we allow the user to specify that only a fraction of the disks should be used 616 * this is just for debug: it speeds up the parity scan 617 */ 618 diskPtr->numBlocks = diskPtr->numBlocks * rf_sizePercentage / 100; 619 620 } 621 622 #endif /* !__NetBSD__ */ 623 #endif /* SIMULATE */ 624 625 return(0); 626 } 627 628 #ifdef SIMULATE 629 630 void rf_default_disk_names() 631 { 632 sprintf(disk_db_file_name,"disk.db"); 633 sprintf(disk_type_name,"HP2247"); 634 } 635 636 void rf_set_disk_db_name(s) 637 char *s; 638 { 639 strcpy(disk_db_file_name,s); 640 } 641 642 void rf_set_disk_type_name(s) 643 char *s; 644 { 645 strcpy(disk_type_name,s); 646 } 647 648 #endif /* SIMULATE */ 649