1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2012 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/bio.h> 34 #include <sys/endian.h> 35 #include <sys/kernel.h> 36 #include <sys/kobj.h> 37 #include <sys/limits.h> 38 #include <sys/lock.h> 39 #include <sys/malloc.h> 40 #include <sys/mutex.h> 41 #include <sys/systm.h> 42 #include <sys/time.h> 43 #include <sys/clock.h> 44 #include <sys/disk.h> 45 #include <geom/geom.h> 46 #include "geom/raid/g_raid.h" 47 #include "geom/raid/md_ddf.h" 48 #include "g_raid_md_if.h" 49 50 static MALLOC_DEFINE(M_MD_DDF, "md_ddf_data", "GEOM_RAID DDF metadata"); 51 52 #define DDF_MAX_DISKS_HARD 128 53 54 #define DDF_MAX_DISKS 16 55 #define DDF_MAX_VDISKS 7 56 #define DDF_MAX_PARTITIONS 1 57 58 #define DECADE (3600*24*(365*10+2)) /* 10 years in seconds. */ 59 60 struct ddf_meta { 61 u_int sectorsize; 62 u_int bigendian; 63 struct ddf_header *hdr; 64 struct ddf_cd_record *cdr; 65 struct ddf_pd_record *pdr; 66 struct ddf_vd_record *vdr; 67 void *cr; 68 struct ddf_pdd_record *pdd; 69 struct ddf_bbm_log *bbm; 70 }; 71 72 struct ddf_vol_meta { 73 u_int sectorsize; 74 u_int bigendian; 75 struct ddf_header *hdr; 76 struct ddf_cd_record *cdr; 77 struct ddf_vd_entry *vde; 78 struct ddf_vdc_record *vdc; 79 struct ddf_vdc_record *bvdc[DDF_MAX_DISKS_HARD]; 80 }; 81 82 struct g_raid_md_ddf_perdisk { 83 struct ddf_meta pd_meta; 84 }; 85 86 struct g_raid_md_ddf_pervolume { 87 struct ddf_vol_meta pv_meta; 88 int pv_started; 89 struct callout pv_start_co; /* STARTING state timer. */ 90 }; 91 92 struct g_raid_md_ddf_object { 93 struct g_raid_md_object mdio_base; 94 u_int mdio_bigendian; 95 struct ddf_meta mdio_meta; 96 int mdio_starting; 97 struct callout mdio_start_co; /* STARTING state timer. */ 98 int mdio_started; 99 struct root_hold_token *mdio_rootmount; /* Root mount delay token. */ 100 }; 101 102 static g_raid_md_create_req_t g_raid_md_create_req_ddf; 103 static g_raid_md_taste_t g_raid_md_taste_ddf; 104 static g_raid_md_event_t g_raid_md_event_ddf; 105 static g_raid_md_volume_event_t g_raid_md_volume_event_ddf; 106 static g_raid_md_ctl_t g_raid_md_ctl_ddf; 107 static g_raid_md_write_t g_raid_md_write_ddf; 108 static g_raid_md_fail_disk_t g_raid_md_fail_disk_ddf; 109 static g_raid_md_free_disk_t g_raid_md_free_disk_ddf; 110 static g_raid_md_free_volume_t g_raid_md_free_volume_ddf; 111 static g_raid_md_free_t g_raid_md_free_ddf; 112 113 static kobj_method_t g_raid_md_ddf_methods[] = { 114 KOBJMETHOD(g_raid_md_create_req, g_raid_md_create_req_ddf), 115 KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_ddf), 116 KOBJMETHOD(g_raid_md_event, g_raid_md_event_ddf), 117 KOBJMETHOD(g_raid_md_volume_event, g_raid_md_volume_event_ddf), 118 KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_ddf), 119 KOBJMETHOD(g_raid_md_write, g_raid_md_write_ddf), 120 KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_ddf), 121 KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_ddf), 122 KOBJMETHOD(g_raid_md_free_volume, g_raid_md_free_volume_ddf), 123 KOBJMETHOD(g_raid_md_free, g_raid_md_free_ddf), 124 { 0, 0 } 125 }; 126 127 static struct g_raid_md_class g_raid_md_ddf_class = { 128 "DDF", 129 g_raid_md_ddf_methods, 130 sizeof(struct g_raid_md_ddf_object), 131 .mdc_enable = 1, 132 .mdc_priority = 100 133 }; 134 135 #define GET8(m, f) ((m)->f) 136 #define GET16(m, f) ((m)->bigendian ? be16dec(&(m)->f) : le16dec(&(m)->f)) 137 #define GET32(m, f) ((m)->bigendian ? be32dec(&(m)->f) : le32dec(&(m)->f)) 138 #define GET64(m, f) ((m)->bigendian ? be64dec(&(m)->f) : le64dec(&(m)->f)) 139 #define GET8D(m, f) (f) 140 #define GET16D(m, f) ((m)->bigendian ? be16dec(&f) : le16dec(&f)) 141 #define GET32D(m, f) ((m)->bigendian ? be32dec(&f) : le32dec(&f)) 142 #define GET64D(m, f) ((m)->bigendian ? be64dec(&f) : le64dec(&f)) 143 #define GET8P(m, f) (*(f)) 144 #define GET16P(m, f) ((m)->bigendian ? be16dec(f) : le16dec(f)) 145 #define GET32P(m, f) ((m)->bigendian ? be32dec(f) : le32dec(f)) 146 #define GET64P(m, f) ((m)->bigendian ? be64dec(f) : le64dec(f)) 147 148 #define SET8P(m, f, v) \ 149 (*(f) = (v)) 150 #define SET16P(m, f, v) \ 151 do { \ 152 if ((m)->bigendian) \ 153 be16enc((f), (v)); \ 154 else \ 155 le16enc((f), (v)); \ 156 } while (0) 157 #define SET32P(m, f, v) \ 158 do { \ 159 if ((m)->bigendian) \ 160 be32enc((f), (v)); \ 161 else \ 162 le32enc((f), (v)); \ 163 } while (0) 164 #define SET64P(m, f, v) \ 165 do { \ 166 if ((m)->bigendian) \ 167 be64enc((f), (v)); \ 168 else \ 169 le64enc((f), (v)); \ 170 } while (0) 171 #define SET8(m, f, v) SET8P((m), &((m)->f), (v)) 172 #define SET16(m, f, v) SET16P((m), &((m)->f), (v)) 173 #define SET32(m, f, v) SET32P((m), &((m)->f), (v)) 174 #define SET64(m, f, v) SET64P((m), &((m)->f), (v)) 175 #define SET8D(m, f, v) SET8P((m), &(f), (v)) 176 #define SET16D(m, f, v) SET16P((m), &(f), (v)) 177 #define SET32D(m, f, v) SET32P((m), &(f), (v)) 178 #define SET64D(m, f, v) SET64P((m), &(f), (v)) 179 180 #define GETCRNUM(m) (GET32((m), hdr->cr_length) / \ 181 GET16((m), hdr->Configuration_Record_Length)) 182 183 #define GETVDCPTR(m, n) ((struct ddf_vdc_record *)((uint8_t *)(m)->cr + \ 184 (n) * GET16((m), hdr->Configuration_Record_Length) * \ 185 (m)->sectorsize)) 186 187 #define GETSAPTR(m, n) ((struct ddf_sa_record *)((uint8_t *)(m)->cr + \ 188 (n) * GET16((m), hdr->Configuration_Record_Length) * \ 189 (m)->sectorsize)) 190 191 static int 192 isff(uint8_t *buf, int size) 193 { 194 int i; 195 196 for (i = 0; i < size; i++) 197 if (buf[i] != 0xff) 198 return (0); 199 return (1); 200 } 201 202 static void 203 print_guid(uint8_t *buf) 204 { 205 int i, ascii; 206 207 ascii = 1; 208 for (i = 0; i < 24; i++) { 209 if (buf[i] != 0 && (buf[i] < ' ' || buf[i] > 127)) { 210 ascii = 0; 211 break; 212 } 213 } 214 if (ascii) { 215 printf("'%.24s'", buf); 216 } else { 217 for (i = 0; i < 24; i++) 218 printf("%02x", buf[i]); 219 } 220 } 221 222 static void 223 g_raid_md_ddf_print(struct ddf_meta *meta) 224 { 225 struct ddf_vdc_record *vdc; 226 struct ddf_vuc_record *vuc; 227 struct ddf_sa_record *sa; 228 uint64_t *val2; 229 uint32_t val; 230 int i, j, k, num, num2; 231 232 if (g_raid_debug < 1) 233 return; 234 235 printf("********* DDF Metadata *********\n"); 236 printf("**** Header ****\n"); 237 printf("DDF_Header_GUID "); 238 print_guid(meta->hdr->DDF_Header_GUID); 239 printf("\n"); 240 printf("DDF_rev %8.8s\n", (char *)&meta->hdr->DDF_rev[0]); 241 printf("Sequence_Number 0x%08x\n", GET32(meta, hdr->Sequence_Number)); 242 printf("TimeStamp 0x%08x\n", GET32(meta, hdr->TimeStamp)); 243 printf("Open_Flag 0x%02x\n", GET16(meta, hdr->Open_Flag)); 244 printf("Foreign_Flag 0x%02x\n", GET16(meta, hdr->Foreign_Flag)); 245 printf("Diskgrouping 0x%02x\n", GET16(meta, hdr->Diskgrouping)); 246 printf("Primary_Header_LBA %ju\n", GET64(meta, hdr->Primary_Header_LBA)); 247 printf("Secondary_Header_LBA %ju\n", GET64(meta, hdr->Secondary_Header_LBA)); 248 printf("WorkSpace_Length %u\n", GET32(meta, hdr->WorkSpace_Length)); 249 printf("WorkSpace_LBA %ju\n", GET64(meta, hdr->WorkSpace_LBA)); 250 printf("Max_PD_Entries %u\n", GET16(meta, hdr->Max_PD_Entries)); 251 printf("Max_VD_Entries %u\n", GET16(meta, hdr->Max_VD_Entries)); 252 printf("Max_Partitions %u\n", GET16(meta, hdr->Max_Partitions)); 253 printf("Configuration_Record_Length %u\n", GET16(meta, hdr->Configuration_Record_Length)); 254 printf("Max_Primary_Element_Entries %u\n", GET16(meta, hdr->Max_Primary_Element_Entries)); 255 printf("Controller Data %u:%u\n", GET32(meta, hdr->cd_section), GET32(meta, hdr->cd_length)); 256 printf("Physical Disk %u:%u\n", GET32(meta, hdr->pdr_section), GET32(meta, hdr->pdr_length)); 257 printf("Virtual Disk %u:%u\n", GET32(meta, hdr->vdr_section), GET32(meta, hdr->vdr_length)); 258 printf("Configuration Recs %u:%u\n", GET32(meta, hdr->cr_section), GET32(meta, hdr->cr_length)); 259 printf("Physical Disk Recs %u:%u\n", GET32(meta, hdr->pdd_section), GET32(meta, hdr->pdd_length)); 260 printf("BBM Log %u:%u\n", GET32(meta, hdr->bbmlog_section), GET32(meta, hdr->bbmlog_length)); 261 printf("Diagnostic Space %u:%u\n", GET32(meta, hdr->Diagnostic_Space), GET32(meta, hdr->Diagnostic_Space_Length)); 262 printf("Vendor_Specific_Logs %u:%u\n", GET32(meta, hdr->Vendor_Specific_Logs), GET32(meta, hdr->Vendor_Specific_Logs_Length)); 263 printf("**** Controller Data ****\n"); 264 printf("Controller_GUID "); 265 print_guid(meta->cdr->Controller_GUID); 266 printf("\n"); 267 printf("Controller_Type 0x%04x%04x 0x%04x%04x\n", 268 GET16(meta, cdr->Controller_Type.Vendor_ID), 269 GET16(meta, cdr->Controller_Type.Device_ID), 270 GET16(meta, cdr->Controller_Type.SubVendor_ID), 271 GET16(meta, cdr->Controller_Type.SubDevice_ID)); 272 printf("Product_ID '%.16s'\n", (char *)&meta->cdr->Product_ID[0]); 273 printf("**** Physical Disk Records ****\n"); 274 printf("Populated_PDEs %u\n", GET16(meta, pdr->Populated_PDEs)); 275 printf("Max_PDE_Supported %u\n", GET16(meta, pdr->Max_PDE_Supported)); 276 for (j = 0; j < GET16(meta, pdr->Populated_PDEs); j++) { 277 if (isff(meta->pdr->entry[j].PD_GUID, 24)) 278 continue; 279 if (GET32(meta, pdr->entry[j].PD_Reference) == 0xffffffff) 280 continue; 281 printf("PD_GUID "); 282 print_guid(meta->pdr->entry[j].PD_GUID); 283 printf("\n"); 284 printf("PD_Reference 0x%08x\n", 285 GET32(meta, pdr->entry[j].PD_Reference)); 286 printf("PD_Type 0x%04x\n", 287 GET16(meta, pdr->entry[j].PD_Type)); 288 printf("PD_State 0x%04x\n", 289 GET16(meta, pdr->entry[j].PD_State)); 290 printf("Configured_Size %ju\n", 291 GET64(meta, pdr->entry[j].Configured_Size)); 292 printf("Block_Size %u\n", 293 GET16(meta, pdr->entry[j].Block_Size)); 294 } 295 printf("**** Virtual Disk Records ****\n"); 296 printf("Populated_VDEs %u\n", GET16(meta, vdr->Populated_VDEs)); 297 printf("Max_VDE_Supported %u\n", GET16(meta, vdr->Max_VDE_Supported)); 298 for (j = 0; j < GET16(meta, vdr->Populated_VDEs); j++) { 299 if (isff(meta->vdr->entry[j].VD_GUID, 24)) 300 continue; 301 printf("VD_GUID "); 302 print_guid(meta->vdr->entry[j].VD_GUID); 303 printf("\n"); 304 printf("VD_Number 0x%04x\n", 305 GET16(meta, vdr->entry[j].VD_Number)); 306 printf("VD_Type 0x%04x\n", 307 GET16(meta, vdr->entry[j].VD_Type)); 308 printf("VD_State 0x%02x\n", 309 GET8(meta, vdr->entry[j].VD_State)); 310 printf("Init_State 0x%02x\n", 311 GET8(meta, vdr->entry[j].Init_State)); 312 printf("Drive_Failures_Remaining %u\n", 313 GET8(meta, vdr->entry[j].Drive_Failures_Remaining)); 314 printf("VD_Name '%.16s'\n", 315 (char *)&meta->vdr->entry[j].VD_Name); 316 } 317 printf("**** Configuration Records ****\n"); 318 num = GETCRNUM(meta); 319 for (j = 0; j < num; j++) { 320 vdc = GETVDCPTR(meta, j); 321 val = GET32D(meta, vdc->Signature); 322 switch (val) { 323 case DDF_VDCR_SIGNATURE: 324 printf("** Virtual Disk Configuration **\n"); 325 printf("VD_GUID "); 326 print_guid(vdc->VD_GUID); 327 printf("\n"); 328 printf("Timestamp 0x%08x\n", 329 GET32D(meta, vdc->Timestamp)); 330 printf("Sequence_Number 0x%08x\n", 331 GET32D(meta, vdc->Sequence_Number)); 332 printf("Primary_Element_Count %u\n", 333 GET16D(meta, vdc->Primary_Element_Count)); 334 printf("Stripe_Size %u\n", 335 GET8D(meta, vdc->Stripe_Size)); 336 printf("Primary_RAID_Level 0x%02x\n", 337 GET8D(meta, vdc->Primary_RAID_Level)); 338 printf("RLQ 0x%02x\n", 339 GET8D(meta, vdc->RLQ)); 340 printf("Secondary_Element_Count %u\n", 341 GET8D(meta, vdc->Secondary_Element_Count)); 342 printf("Secondary_Element_Seq %u\n", 343 GET8D(meta, vdc->Secondary_Element_Seq)); 344 printf("Secondary_RAID_Level 0x%02x\n", 345 GET8D(meta, vdc->Secondary_RAID_Level)); 346 printf("Block_Count %ju\n", 347 GET64D(meta, vdc->Block_Count)); 348 printf("VD_Size %ju\n", 349 GET64D(meta, vdc->VD_Size)); 350 printf("Block_Size %u\n", 351 GET16D(meta, vdc->Block_Size)); 352 printf("Rotate_Parity_count %u\n", 353 GET8D(meta, vdc->Rotate_Parity_count)); 354 printf("Associated_Spare_Disks"); 355 for (i = 0; i < 8; i++) { 356 if (GET32D(meta, vdc->Associated_Spares[i]) != 0xffffffff) 357 printf(" 0x%08x", GET32D(meta, vdc->Associated_Spares[i])); 358 } 359 printf("\n"); 360 printf("Cache_Flags %016jx\n", 361 GET64D(meta, vdc->Cache_Flags)); 362 printf("BG_Rate %u\n", 363 GET8D(meta, vdc->BG_Rate)); 364 printf("MDF_Parity_Disks %u\n", 365 GET8D(meta, vdc->MDF_Parity_Disks)); 366 printf("MDF_Parity_Generator_Polynomial 0x%04x\n", 367 GET16D(meta, vdc->MDF_Parity_Generator_Polynomial)); 368 printf("MDF_Constant_Generation_Method 0x%02x\n", 369 GET8D(meta, vdc->MDF_Constant_Generation_Method)); 370 printf("Physical_Disks "); 371 num2 = GET16D(meta, vdc->Primary_Element_Count); 372 val2 = (uint64_t *)&(vdc->Physical_Disk_Sequence[GET16(meta, hdr->Max_Primary_Element_Entries)]); 373 for (i = 0; i < num2; i++) 374 printf(" 0x%08x @ %ju", 375 GET32D(meta, vdc->Physical_Disk_Sequence[i]), 376 GET64P(meta, val2 + i)); 377 printf("\n"); 378 break; 379 case DDF_VUCR_SIGNATURE: 380 printf("** Vendor Unique Configuration **\n"); 381 vuc = (struct ddf_vuc_record *)vdc; 382 printf("VD_GUID "); 383 print_guid(vuc->VD_GUID); 384 printf("\n"); 385 break; 386 case DDF_SA_SIGNATURE: 387 printf("** Spare Assignment Configuration **\n"); 388 sa = (struct ddf_sa_record *)vdc; 389 printf("Timestamp 0x%08x\n", 390 GET32D(meta, sa->Timestamp)); 391 printf("Spare_Type 0x%02x\n", 392 GET8D(meta, sa->Spare_Type)); 393 printf("Populated_SAEs %u\n", 394 GET16D(meta, sa->Populated_SAEs)); 395 printf("MAX_SAE_Supported %u\n", 396 GET16D(meta, sa->MAX_SAE_Supported)); 397 for (i = 0; i < GET16D(meta, sa->Populated_SAEs); i++) { 398 if (isff(sa->entry[i].VD_GUID, 24)) 399 continue; 400 printf("VD_GUID "); 401 for (k = 0; k < 24; k++) 402 printf("%02x", sa->entry[i].VD_GUID[k]); 403 printf("\n"); 404 printf("Secondary_Element %u\n", 405 GET16D(meta, sa->entry[i].Secondary_Element)); 406 } 407 break; 408 case 0x00000000: 409 case 0xFFFFFFFF: 410 break; 411 default: 412 printf("Unknown configuration signature %08x\n", val); 413 break; 414 } 415 } 416 printf("**** Physical Disk Data ****\n"); 417 printf("PD_GUID "); 418 print_guid(meta->pdd->PD_GUID); 419 printf("\n"); 420 printf("PD_Reference 0x%08x\n", 421 GET32(meta, pdd->PD_Reference)); 422 printf("Forced_Ref_Flag 0x%02x\n", 423 GET8(meta, pdd->Forced_Ref_Flag)); 424 printf("Forced_PD_GUID_Flag 0x%02x\n", 425 GET8(meta, pdd->Forced_PD_GUID_Flag)); 426 } 427 428 static int 429 ddf_meta_find_pd(struct ddf_meta *meta, uint8_t *GUID, uint32_t PD_Reference) 430 { 431 int i; 432 433 for (i = 0; i < GET16(meta, pdr->Populated_PDEs); i++) { 434 if (GUID != NULL) { 435 if (memcmp(meta->pdr->entry[i].PD_GUID, GUID, 24) == 0) 436 return (i); 437 } else if (PD_Reference != 0xffffffff) { 438 if (GET32(meta, pdr->entry[i].PD_Reference) == PD_Reference) 439 return (i); 440 } else 441 if (isff(meta->pdr->entry[i].PD_GUID, 24)) 442 return (i); 443 } 444 if (GUID == NULL && PD_Reference == 0xffffffff) { 445 if (i >= GET16(meta, pdr->Max_PDE_Supported)) 446 return (-1); 447 SET16(meta, pdr->Populated_PDEs, i + 1); 448 return (i); 449 } 450 return (-1); 451 } 452 453 static int 454 ddf_meta_find_vd(struct ddf_meta *meta, uint8_t *GUID) 455 { 456 int i; 457 458 for (i = 0; i < GET16(meta, vdr->Populated_VDEs); i++) { 459 if (GUID != NULL) { 460 if (memcmp(meta->vdr->entry[i].VD_GUID, GUID, 24) == 0) 461 return (i); 462 } else 463 if (isff(meta->vdr->entry[i].VD_GUID, 24)) 464 return (i); 465 } 466 if (GUID == NULL) { 467 if (i >= GET16(meta, vdr->Max_VDE_Supported)) 468 return (-1); 469 SET16(meta, vdr->Populated_VDEs, i + 1); 470 return (i); 471 } 472 return (-1); 473 } 474 475 static struct ddf_vdc_record * 476 ddf_meta_find_vdc(struct ddf_meta *meta, uint8_t *GUID) 477 { 478 struct ddf_vdc_record *vdc; 479 int i, num; 480 481 num = GETCRNUM(meta); 482 for (i = 0; i < num; i++) { 483 vdc = GETVDCPTR(meta, i); 484 if (GUID != NULL) { 485 if (GET32D(meta, vdc->Signature) == DDF_VDCR_SIGNATURE && 486 memcmp(vdc->VD_GUID, GUID, 24) == 0) 487 return (vdc); 488 } else 489 if (GET32D(meta, vdc->Signature) == 0xffffffff || 490 GET32D(meta, vdc->Signature) == 0) 491 return (vdc); 492 } 493 return (NULL); 494 } 495 496 static int 497 ddf_meta_count_vdc(struct ddf_meta *meta, uint8_t *GUID) 498 { 499 struct ddf_vdc_record *vdc; 500 int i, num, cnt; 501 502 cnt = 0; 503 num = GETCRNUM(meta); 504 for (i = 0; i < num; i++) { 505 vdc = GETVDCPTR(meta, i); 506 if (GET32D(meta, vdc->Signature) != DDF_VDCR_SIGNATURE) 507 continue; 508 if (GUID == NULL || memcmp(vdc->VD_GUID, GUID, 24) == 0) 509 cnt++; 510 } 511 return (cnt); 512 } 513 514 static int 515 ddf_meta_find_disk(struct ddf_vol_meta *vmeta, uint32_t PD_Reference, 516 int *bvdp, int *posp) 517 { 518 int i, bvd, pos; 519 520 i = 0; 521 for (bvd = 0; bvd < GET8(vmeta, vdc->Secondary_Element_Count); bvd++) { 522 if (vmeta->bvdc[bvd] == NULL) { 523 i += GET16(vmeta, vdc->Primary_Element_Count); // XXX 524 continue; 525 } 526 for (pos = 0; pos < GET16(vmeta, bvdc[bvd]->Primary_Element_Count); 527 pos++, i++) { 528 if (GET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos]) == 529 PD_Reference) { 530 if (bvdp != NULL) 531 *bvdp = bvd; 532 if (posp != NULL) 533 *posp = pos; 534 return (i); 535 } 536 } 537 } 538 return (-1); 539 } 540 541 static struct ddf_sa_record * 542 ddf_meta_find_sa(struct ddf_meta *meta, int create) 543 { 544 struct ddf_sa_record *sa; 545 int i, num; 546 547 num = GETCRNUM(meta); 548 for (i = 0; i < num; i++) { 549 sa = GETSAPTR(meta, i); 550 if (GET32D(meta, sa->Signature) == DDF_SA_SIGNATURE) 551 return (sa); 552 } 553 if (create) { 554 for (i = 0; i < num; i++) { 555 sa = GETSAPTR(meta, i); 556 if (GET32D(meta, sa->Signature) == 0xffffffff || 557 GET32D(meta, sa->Signature) == 0) 558 return (sa); 559 } 560 } 561 return (NULL); 562 } 563 564 static void 565 ddf_meta_create(struct g_raid_disk *disk, struct ddf_meta *sample) 566 { 567 struct timespec ts; 568 struct clocktime ct; 569 struct g_raid_md_ddf_perdisk *pd; 570 struct g_raid_md_ddf_object *mdi; 571 struct ddf_meta *meta; 572 struct ddf_pd_entry *pde; 573 off_t anchorlba; 574 u_int ss, pos, size; 575 int len, error; 576 char serial_buffer[DISK_IDENT_SIZE]; 577 578 if (sample->hdr == NULL) 579 sample = NULL; 580 581 mdi = (struct g_raid_md_ddf_object *)disk->d_softc->sc_md; 582 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 583 meta = &pd->pd_meta; 584 ss = disk->d_consumer->provider->sectorsize; 585 anchorlba = disk->d_consumer->provider->mediasize / ss - 1; 586 587 meta->sectorsize = ss; 588 meta->bigendian = sample ? sample->bigendian : mdi->mdio_bigendian; 589 getnanotime(&ts); 590 clock_ts_to_ct(&ts, &ct); 591 592 /* Header */ 593 meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK); 594 memset(meta->hdr, 0xff, ss); 595 if (sample) { 596 memcpy(meta->hdr, sample->hdr, sizeof(struct ddf_header)); 597 if (ss != sample->sectorsize) { 598 SET32(meta, hdr->WorkSpace_Length, 599 howmany(GET32(sample, hdr->WorkSpace_Length) * 600 sample->sectorsize, ss)); 601 SET16(meta, hdr->Configuration_Record_Length, 602 howmany(GET16(sample, 603 hdr->Configuration_Record_Length) * 604 sample->sectorsize, ss)); 605 SET32(meta, hdr->cd_length, 606 howmany(GET32(sample, hdr->cd_length) * 607 sample->sectorsize, ss)); 608 SET32(meta, hdr->pdr_length, 609 howmany(GET32(sample, hdr->pdr_length) * 610 sample->sectorsize, ss)); 611 SET32(meta, hdr->vdr_length, 612 howmany(GET32(sample, hdr->vdr_length) * 613 sample->sectorsize, ss)); 614 SET32(meta, hdr->cr_length, 615 howmany(GET32(sample, hdr->cr_length) * 616 sample->sectorsize, ss)); 617 SET32(meta, hdr->pdd_length, 618 howmany(GET32(sample, hdr->pdd_length) * 619 sample->sectorsize, ss)); 620 SET32(meta, hdr->bbmlog_length, 621 howmany(GET32(sample, hdr->bbmlog_length) * 622 sample->sectorsize, ss)); 623 SET32(meta, hdr->Diagnostic_Space, 624 howmany(GET32(sample, hdr->bbmlog_length) * 625 sample->sectorsize, ss)); 626 SET32(meta, hdr->Vendor_Specific_Logs, 627 howmany(GET32(sample, hdr->bbmlog_length) * 628 sample->sectorsize, ss)); 629 } 630 } else { 631 SET32(meta, hdr->Signature, DDF_HEADER_SIGNATURE); 632 snprintf(meta->hdr->DDF_Header_GUID, 25, "FreeBSD %08x%08x", 633 (u_int)(ts.tv_sec - DECADE), arc4random()); 634 memcpy(meta->hdr->DDF_rev, "02.00.00", 8); 635 SET32(meta, hdr->TimeStamp, (ts.tv_sec - DECADE)); 636 SET32(meta, hdr->WorkSpace_Length, 16 * 1024 * 1024 / ss); 637 SET16(meta, hdr->Max_PD_Entries, DDF_MAX_DISKS - 1); 638 SET16(meta, hdr->Max_VD_Entries, DDF_MAX_VDISKS); 639 SET16(meta, hdr->Max_Partitions, DDF_MAX_PARTITIONS); 640 SET16(meta, hdr->Max_Primary_Element_Entries, DDF_MAX_DISKS); 641 SET16(meta, hdr->Configuration_Record_Length, 642 howmany(sizeof(struct ddf_vdc_record) + (4 + 8) * 643 GET16(meta, hdr->Max_Primary_Element_Entries), ss)); 644 SET32(meta, hdr->cd_length, 645 howmany(sizeof(struct ddf_cd_record), ss)); 646 SET32(meta, hdr->pdr_length, 647 howmany(sizeof(struct ddf_pd_record) + 648 sizeof(struct ddf_pd_entry) * GET16(meta, 649 hdr->Max_PD_Entries), ss)); 650 SET32(meta, hdr->vdr_length, 651 howmany(sizeof(struct ddf_vd_record) + 652 sizeof(struct ddf_vd_entry) * 653 GET16(meta, hdr->Max_VD_Entries), ss)); 654 SET32(meta, hdr->cr_length, 655 GET16(meta, hdr->Configuration_Record_Length) * 656 (GET16(meta, hdr->Max_Partitions) + 1)); 657 SET32(meta, hdr->pdd_length, 658 howmany(sizeof(struct ddf_pdd_record), ss)); 659 SET32(meta, hdr->bbmlog_length, 0); 660 SET32(meta, hdr->Diagnostic_Space_Length, 0); 661 SET32(meta, hdr->Vendor_Specific_Logs_Length, 0); 662 } 663 pos = 1; 664 SET32(meta, hdr->cd_section, pos); 665 pos += GET32(meta, hdr->cd_length); 666 SET32(meta, hdr->pdr_section, pos); 667 pos += GET32(meta, hdr->pdr_length); 668 SET32(meta, hdr->vdr_section, pos); 669 pos += GET32(meta, hdr->vdr_length); 670 SET32(meta, hdr->cr_section, pos); 671 pos += GET32(meta, hdr->cr_length); 672 SET32(meta, hdr->pdd_section, pos); 673 pos += GET32(meta, hdr->pdd_length); 674 SET32(meta, hdr->bbmlog_section, 675 GET32(meta, hdr->bbmlog_length) != 0 ? pos : 0xffffffff); 676 pos += GET32(meta, hdr->bbmlog_length); 677 SET32(meta, hdr->Diagnostic_Space, 678 GET32(meta, hdr->Diagnostic_Space_Length) != 0 ? pos : 0xffffffff); 679 pos += GET32(meta, hdr->Diagnostic_Space_Length); 680 SET32(meta, hdr->Vendor_Specific_Logs, 681 GET32(meta, hdr->Vendor_Specific_Logs_Length) != 0 ? pos : 0xffffffff); 682 pos += min(GET32(meta, hdr->Vendor_Specific_Logs_Length), 1); 683 SET64(meta, hdr->Primary_Header_LBA, 684 anchorlba - pos); 685 SET64(meta, hdr->Secondary_Header_LBA, 686 0xffffffffffffffffULL); 687 SET64(meta, hdr->WorkSpace_LBA, 688 anchorlba + 1 - 32 * 1024 * 1024 / ss); 689 690 /* Controller Data */ 691 size = GET32(meta, hdr->cd_length) * ss; 692 meta->cdr = malloc(size, M_MD_DDF, M_WAITOK); 693 memset(meta->cdr, 0xff, size); 694 SET32(meta, cdr->Signature, DDF_CONTROLLER_DATA_SIGNATURE); 695 memcpy(meta->cdr->Controller_GUID, "FreeBSD GEOM RAID SERIAL", 24); 696 memcpy(meta->cdr->Product_ID, "FreeBSD GEOMRAID", 16); 697 698 /* Physical Drive Records. */ 699 size = GET32(meta, hdr->pdr_length) * ss; 700 meta->pdr = malloc(size, M_MD_DDF, M_WAITOK); 701 memset(meta->pdr, 0xff, size); 702 SET32(meta, pdr->Signature, DDF_PDR_SIGNATURE); 703 SET16(meta, pdr->Populated_PDEs, 1); 704 SET16(meta, pdr->Max_PDE_Supported, 705 GET16(meta, hdr->Max_PD_Entries)); 706 707 pde = &meta->pdr->entry[0]; 708 len = sizeof(serial_buffer); 709 error = g_io_getattr("GEOM::ident", disk->d_consumer, &len, serial_buffer); 710 if (error == 0 && (len = strlen (serial_buffer)) >= 6 && len <= 20) 711 snprintf(pde->PD_GUID, 25, "DISK%20s", serial_buffer); 712 else 713 snprintf(pde->PD_GUID, 25, "DISK%04d%02d%02d%08x%04x", 714 ct.year, ct.mon, ct.day, 715 arc4random(), arc4random() & 0xffff); 716 SET32D(meta, pde->PD_Reference, arc4random()); 717 SET16D(meta, pde->PD_Type, DDF_PDE_GUID_FORCE); 718 SET16D(meta, pde->PD_State, 0); 719 SET64D(meta, pde->Configured_Size, 720 anchorlba + 1 - 32 * 1024 * 1024 / ss); 721 SET16D(meta, pde->Block_Size, ss); 722 723 /* Virtual Drive Records. */ 724 size = GET32(meta, hdr->vdr_length) * ss; 725 meta->vdr = malloc(size, M_MD_DDF, M_WAITOK); 726 memset(meta->vdr, 0xff, size); 727 SET32(meta, vdr->Signature, DDF_VD_RECORD_SIGNATURE); 728 SET32(meta, vdr->Populated_VDEs, 0); 729 SET16(meta, vdr->Max_VDE_Supported, 730 GET16(meta, hdr->Max_VD_Entries)); 731 732 /* Configuration Records. */ 733 size = GET32(meta, hdr->cr_length) * ss; 734 meta->cr = malloc(size, M_MD_DDF, M_WAITOK); 735 memset(meta->cr, 0xff, size); 736 737 /* Physical Disk Data. */ 738 size = GET32(meta, hdr->pdd_length) * ss; 739 meta->pdd = malloc(size, M_MD_DDF, M_WAITOK); 740 memset(meta->pdd, 0xff, size); 741 SET32(meta, pdd->Signature, DDF_PDD_SIGNATURE); 742 memcpy(meta->pdd->PD_GUID, pde->PD_GUID, 24); 743 SET32(meta, pdd->PD_Reference, GET32D(meta, pde->PD_Reference)); 744 SET8(meta, pdd->Forced_Ref_Flag, DDF_PDD_FORCED_REF); 745 SET8(meta, pdd->Forced_PD_GUID_Flag, DDF_PDD_FORCED_GUID); 746 747 /* Bad Block Management Log. */ 748 if (GET32(meta, hdr->bbmlog_length) != 0) { 749 size = GET32(meta, hdr->bbmlog_length) * ss; 750 meta->bbm = malloc(size, M_MD_DDF, M_WAITOK); 751 memset(meta->bbm, 0xff, size); 752 SET32(meta, bbm->Signature, DDF_BBML_SIGNATURE); 753 SET32(meta, bbm->Entry_Count, 0); 754 SET32(meta, bbm->Spare_Block_Count, 0); 755 } 756 } 757 758 static void 759 ddf_meta_copy(struct ddf_meta *dst, struct ddf_meta *src) 760 { 761 u_int ss; 762 763 dst->bigendian = src->bigendian; 764 ss = dst->sectorsize = src->sectorsize; 765 dst->hdr = malloc(ss, M_MD_DDF, M_WAITOK); 766 memcpy(dst->hdr, src->hdr, ss); 767 dst->cdr = malloc(GET32(src, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK); 768 memcpy(dst->cdr, src->cdr, GET32(src, hdr->cd_length) * ss); 769 dst->pdr = malloc(GET32(src, hdr->pdr_length) * ss, M_MD_DDF, M_WAITOK); 770 memcpy(dst->pdr, src->pdr, GET32(src, hdr->pdr_length) * ss); 771 dst->vdr = malloc(GET32(src, hdr->vdr_length) * ss, M_MD_DDF, M_WAITOK); 772 memcpy(dst->vdr, src->vdr, GET32(src, hdr->vdr_length) * ss); 773 dst->cr = malloc(GET32(src, hdr->cr_length) * ss, M_MD_DDF, M_WAITOK); 774 memcpy(dst->cr, src->cr, GET32(src, hdr->cr_length) * ss); 775 dst->pdd = malloc(GET32(src, hdr->pdd_length) * ss, M_MD_DDF, M_WAITOK); 776 memcpy(dst->pdd, src->pdd, GET32(src, hdr->pdd_length) * ss); 777 if (src->bbm != NULL) { 778 dst->bbm = malloc(GET32(src, hdr->bbmlog_length) * ss, M_MD_DDF, M_WAITOK); 779 memcpy(dst->bbm, src->bbm, GET32(src, hdr->bbmlog_length) * ss); 780 } 781 } 782 783 static void 784 ddf_meta_update(struct ddf_meta *meta, struct ddf_meta *src) 785 { 786 struct ddf_pd_entry *pde, *spde; 787 int i, j; 788 789 for (i = 0; i < GET16(src, pdr->Populated_PDEs); i++) { 790 spde = &src->pdr->entry[i]; 791 if (isff(spde->PD_GUID, 24)) 792 continue; 793 j = ddf_meta_find_pd(meta, NULL, 794 GET32(src, pdr->entry[i].PD_Reference)); 795 if (j < 0) { 796 j = ddf_meta_find_pd(meta, NULL, 0xffffffff); 797 pde = &meta->pdr->entry[j]; 798 memcpy(pde, spde, sizeof(*pde)); 799 } else { 800 pde = &meta->pdr->entry[j]; 801 SET16D(meta, pde->PD_State, 802 GET16D(meta, pde->PD_State) | 803 GET16D(src, pde->PD_State)); 804 } 805 } 806 } 807 808 static void 809 ddf_meta_free(struct ddf_meta *meta) 810 { 811 812 if (meta->hdr != NULL) { 813 free(meta->hdr, M_MD_DDF); 814 meta->hdr = NULL; 815 } 816 if (meta->cdr != NULL) { 817 free(meta->cdr, M_MD_DDF); 818 meta->cdr = NULL; 819 } 820 if (meta->pdr != NULL) { 821 free(meta->pdr, M_MD_DDF); 822 meta->pdr = NULL; 823 } 824 if (meta->vdr != NULL) { 825 free(meta->vdr, M_MD_DDF); 826 meta->vdr = NULL; 827 } 828 if (meta->cr != NULL) { 829 free(meta->cr, M_MD_DDF); 830 meta->cr = NULL; 831 } 832 if (meta->pdd != NULL) { 833 free(meta->pdd, M_MD_DDF); 834 meta->pdd = NULL; 835 } 836 if (meta->bbm != NULL) { 837 free(meta->bbm, M_MD_DDF); 838 meta->bbm = NULL; 839 } 840 } 841 842 static void 843 ddf_vol_meta_create(struct ddf_vol_meta *meta, struct ddf_meta *sample) 844 { 845 struct timespec ts; 846 struct clocktime ct; 847 u_int ss, size; 848 849 meta->bigendian = sample->bigendian; 850 ss = meta->sectorsize = sample->sectorsize; 851 meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK); 852 memcpy(meta->hdr, sample->hdr, ss); 853 meta->cdr = malloc(GET32(sample, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK); 854 memcpy(meta->cdr, sample->cdr, GET32(sample, hdr->cd_length) * ss); 855 meta->vde = malloc(sizeof(struct ddf_vd_entry), M_MD_DDF, M_WAITOK); 856 memset(meta->vde, 0xff, sizeof(struct ddf_vd_entry)); 857 getnanotime(&ts); 858 clock_ts_to_ct(&ts, &ct); 859 snprintf(meta->vde->VD_GUID, 25, "FreeBSD%04d%02d%02d%08x%01x", 860 ct.year, ct.mon, ct.day, 861 arc4random(), arc4random() & 0xf); 862 size = GET16(sample, hdr->Configuration_Record_Length) * ss; 863 meta->vdc = malloc(size, M_MD_DDF, M_WAITOK); 864 memset(meta->vdc, 0xff, size); 865 SET32(meta, vdc->Signature, DDF_VDCR_SIGNATURE); 866 memcpy(meta->vdc->VD_GUID, meta->vde->VD_GUID, 24); 867 SET32(meta, vdc->Sequence_Number, 0); 868 } 869 870 static void 871 ddf_vol_meta_update(struct ddf_vol_meta *dst, struct ddf_meta *src, 872 uint8_t *GUID, int started) 873 { 874 struct ddf_vd_entry *vde; 875 struct ddf_vdc_record *vdc; 876 int vnew, bvnew, bvd, size; 877 u_int ss; 878 879 vde = &src->vdr->entry[ddf_meta_find_vd(src, GUID)]; 880 vdc = ddf_meta_find_vdc(src, GUID); 881 if (GET8D(src, vdc->Secondary_Element_Count) == 1) 882 bvd = 0; 883 else 884 bvd = GET8D(src, vdc->Secondary_Element_Seq); 885 size = GET16(src, hdr->Configuration_Record_Length) * src->sectorsize; 886 887 if (dst->vdc == NULL || 888 (!started && ((int32_t)(GET32D(src, vdc->Sequence_Number) - 889 GET32(dst, vdc->Sequence_Number))) > 0)) 890 vnew = 1; 891 else 892 vnew = 0; 893 894 if (dst->bvdc[bvd] == NULL || 895 (!started && ((int32_t)(GET32D(src, vdc->Sequence_Number) - 896 GET32(dst, bvdc[bvd]->Sequence_Number))) > 0)) 897 bvnew = 1; 898 else 899 bvnew = 0; 900 901 if (vnew) { 902 dst->bigendian = src->bigendian; 903 ss = dst->sectorsize = src->sectorsize; 904 if (dst->hdr != NULL) 905 free(dst->hdr, M_MD_DDF); 906 dst->hdr = malloc(ss, M_MD_DDF, M_WAITOK); 907 memcpy(dst->hdr, src->hdr, ss); 908 if (dst->cdr != NULL) 909 free(dst->cdr, M_MD_DDF); 910 dst->cdr = malloc(GET32(src, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK); 911 memcpy(dst->cdr, src->cdr, GET32(src, hdr->cd_length) * ss); 912 if (dst->vde != NULL) 913 free(dst->vde, M_MD_DDF); 914 dst->vde = malloc(sizeof(struct ddf_vd_entry), M_MD_DDF, M_WAITOK); 915 memcpy(dst->vde, vde, sizeof(struct ddf_vd_entry)); 916 if (dst->vdc != NULL) 917 free(dst->vdc, M_MD_DDF); 918 dst->vdc = malloc(size, M_MD_DDF, M_WAITOK); 919 memcpy(dst->vdc, vdc, size); 920 } 921 if (bvnew) { 922 if (dst->bvdc[bvd] != NULL) 923 free(dst->bvdc[bvd], M_MD_DDF); 924 dst->bvdc[bvd] = malloc(size, M_MD_DDF, M_WAITOK); 925 memcpy(dst->bvdc[bvd], vdc, size); 926 } 927 } 928 929 static void 930 ddf_vol_meta_free(struct ddf_vol_meta *meta) 931 { 932 int i; 933 934 if (meta->hdr != NULL) { 935 free(meta->hdr, M_MD_DDF); 936 meta->hdr = NULL; 937 } 938 if (meta->cdr != NULL) { 939 free(meta->cdr, M_MD_DDF); 940 meta->cdr = NULL; 941 } 942 if (meta->vde != NULL) { 943 free(meta->vde, M_MD_DDF); 944 meta->vde = NULL; 945 } 946 if (meta->vdc != NULL) { 947 free(meta->vdc, M_MD_DDF); 948 meta->vdc = NULL; 949 } 950 for (i = 0; i < DDF_MAX_DISKS_HARD; i++) { 951 if (meta->bvdc[i] != NULL) { 952 free(meta->bvdc[i], M_MD_DDF); 953 meta->bvdc[i] = NULL; 954 } 955 } 956 } 957 958 static int 959 ddf_meta_unused_range(struct ddf_meta *meta, off_t *off, off_t *size) 960 { 961 struct ddf_vdc_record *vdc; 962 off_t beg[32], end[32], beg1, end1; 963 uint64_t *offp; 964 int i, j, n, num, pos; 965 uint32_t ref; 966 967 *off = 0; 968 *size = 0; 969 ref = GET32(meta, pdd->PD_Reference); 970 pos = ddf_meta_find_pd(meta, NULL, ref); 971 beg[0] = 0; 972 end[0] = GET64(meta, pdr->entry[pos].Configured_Size); 973 n = 1; 974 num = GETCRNUM(meta); 975 for (i = 0; i < num; i++) { 976 vdc = GETVDCPTR(meta, i); 977 if (GET32D(meta, vdc->Signature) != DDF_VDCR_SIGNATURE) 978 continue; 979 for (pos = 0; pos < GET16D(meta, vdc->Primary_Element_Count); pos++) 980 if (GET32D(meta, vdc->Physical_Disk_Sequence[pos]) == ref) 981 break; 982 if (pos == GET16D(meta, vdc->Primary_Element_Count)) 983 continue; 984 offp = (uint64_t *)&(vdc->Physical_Disk_Sequence[ 985 GET16(meta, hdr->Max_Primary_Element_Entries)]); 986 beg1 = GET64P(meta, offp + pos); 987 end1 = beg1 + GET64D(meta, vdc->Block_Count); 988 for (j = 0; j < n; j++) { 989 if (beg[j] >= end1 || end[j] <= beg1 ) 990 continue; 991 if (beg[j] < beg1 && end[j] > end1) { 992 beg[n] = end1; 993 end[n] = end[j]; 994 end[j] = beg1; 995 n++; 996 } else if (beg[j] < beg1) 997 end[j] = beg1; 998 else 999 beg[j] = end1; 1000 } 1001 } 1002 for (j = 0; j < n; j++) { 1003 if (end[j] - beg[j] > *size) { 1004 *off = beg[j]; 1005 *size = end[j] - beg[j]; 1006 } 1007 } 1008 return ((*size > 0) ? 1 : 0); 1009 } 1010 1011 static void 1012 ddf_meta_get_name(struct ddf_meta *meta, int num, char *buf) 1013 { 1014 const char *b; 1015 int i; 1016 1017 b = meta->vdr->entry[num].VD_Name; 1018 for (i = 15; i >= 0; i--) 1019 if (b[i] != 0x20) 1020 break; 1021 memcpy(buf, b, i + 1); 1022 buf[i + 1] = 0; 1023 } 1024 1025 static void 1026 ddf_meta_put_name(struct ddf_vol_meta *meta, char *buf) 1027 { 1028 int len; 1029 1030 len = min(strlen(buf), 16); 1031 memset(meta->vde->VD_Name, 0x20, 16); 1032 memcpy(meta->vde->VD_Name, buf, len); 1033 } 1034 1035 static int 1036 ddf_meta_read(struct g_consumer *cp, struct ddf_meta *meta) 1037 { 1038 struct g_provider *pp; 1039 struct ddf_header *ahdr, *hdr; 1040 char *abuf, *buf; 1041 off_t plba, slba, lba; 1042 int error, len, i; 1043 u_int ss; 1044 uint32_t val; 1045 1046 ddf_meta_free(meta); 1047 pp = cp->provider; 1048 ss = meta->sectorsize = pp->sectorsize; 1049 /* Read anchor block. */ 1050 abuf = g_read_data(cp, pp->mediasize - ss, ss, &error); 1051 if (abuf == NULL) { 1052 G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).", 1053 pp->name, error); 1054 return (error); 1055 } 1056 ahdr = (struct ddf_header *)abuf; 1057 1058 /* Check if this is an DDF RAID struct */ 1059 if (be32dec(&ahdr->Signature) == DDF_HEADER_SIGNATURE) 1060 meta->bigendian = 1; 1061 else if (le32dec(&ahdr->Signature) == DDF_HEADER_SIGNATURE) 1062 meta->bigendian = 0; 1063 else { 1064 G_RAID_DEBUG(1, "DDF signature check failed on %s", pp->name); 1065 error = EINVAL; 1066 goto done; 1067 } 1068 if (ahdr->Header_Type != DDF_HEADER_ANCHOR) { 1069 G_RAID_DEBUG(1, "DDF header type check failed on %s", pp->name); 1070 error = EINVAL; 1071 goto done; 1072 } 1073 meta->hdr = ahdr; 1074 plba = GET64(meta, hdr->Primary_Header_LBA); 1075 slba = GET64(meta, hdr->Secondary_Header_LBA); 1076 val = GET32(meta, hdr->CRC); 1077 SET32(meta, hdr->CRC, 0xffffffff); 1078 meta->hdr = NULL; 1079 if (crc32(ahdr, ss) != val) { 1080 G_RAID_DEBUG(1, "DDF CRC mismatch on %s", pp->name); 1081 error = EINVAL; 1082 goto done; 1083 } 1084 if ((plba + 6) * ss >= pp->mediasize) { 1085 G_RAID_DEBUG(1, "DDF primary header LBA is wrong on %s", pp->name); 1086 error = EINVAL; 1087 goto done; 1088 } 1089 if (slba != -1 && (slba + 6) * ss >= pp->mediasize) { 1090 G_RAID_DEBUG(1, "DDF secondary header LBA is wrong on %s", pp->name); 1091 error = EINVAL; 1092 goto done; 1093 } 1094 lba = plba; 1095 1096 doread: 1097 error = 0; 1098 ddf_meta_free(meta); 1099 1100 /* Read header block. */ 1101 buf = g_read_data(cp, lba * ss, ss, &error); 1102 if (buf == NULL) { 1103 readerror: 1104 G_RAID_DEBUG(1, "DDF %s metadata read error on %s (error=%d).", 1105 (lba == plba) ? "primary" : "secondary", pp->name, error); 1106 if (lba == plba && slba != -1) { 1107 lba = slba; 1108 goto doread; 1109 } 1110 G_RAID_DEBUG(1, "DDF metadata read error on %s.", pp->name); 1111 goto done; 1112 } 1113 meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK); 1114 memcpy(meta->hdr, buf, ss); 1115 g_free(buf); 1116 hdr = meta->hdr; 1117 val = GET32(meta, hdr->CRC); 1118 SET32(meta, hdr->CRC, 0xffffffff); 1119 if (hdr->Signature != ahdr->Signature || 1120 crc32(meta->hdr, ss) != val || 1121 memcmp(hdr->DDF_Header_GUID, ahdr->DDF_Header_GUID, 24) || 1122 GET64(meta, hdr->Primary_Header_LBA) != plba || 1123 GET64(meta, hdr->Secondary_Header_LBA) != slba) { 1124 hdrerror: 1125 G_RAID_DEBUG(1, "DDF %s metadata check failed on %s", 1126 (lba == plba) ? "primary" : "secondary", pp->name); 1127 if (lba == plba && slba != -1) { 1128 lba = slba; 1129 goto doread; 1130 } 1131 G_RAID_DEBUG(1, "DDF metadata check failed on %s", pp->name); 1132 error = EINVAL; 1133 goto done; 1134 } 1135 if ((lba == plba && hdr->Header_Type != DDF_HEADER_PRIMARY) || 1136 (lba == slba && hdr->Header_Type != DDF_HEADER_SECONDARY)) 1137 goto hdrerror; 1138 len = 1; 1139 len = max(len, GET32(meta, hdr->cd_section) + GET32(meta, hdr->cd_length)); 1140 len = max(len, GET32(meta, hdr->pdr_section) + GET32(meta, hdr->pdr_length)); 1141 len = max(len, GET32(meta, hdr->vdr_section) + GET32(meta, hdr->vdr_length)); 1142 len = max(len, GET32(meta, hdr->cr_section) + GET32(meta, hdr->cr_length)); 1143 len = max(len, GET32(meta, hdr->pdd_section) + GET32(meta, hdr->pdd_length)); 1144 if ((val = GET32(meta, hdr->bbmlog_section)) != 0xffffffff) 1145 len = max(len, val + GET32(meta, hdr->bbmlog_length)); 1146 if ((val = GET32(meta, hdr->Diagnostic_Space)) != 0xffffffff) 1147 len = max(len, val + GET32(meta, hdr->Diagnostic_Space_Length)); 1148 if ((val = GET32(meta, hdr->Vendor_Specific_Logs)) != 0xffffffff) 1149 len = max(len, val + GET32(meta, hdr->Vendor_Specific_Logs_Length)); 1150 if ((plba + len) * ss >= pp->mediasize) 1151 goto hdrerror; 1152 if (slba != -1 && (slba + len) * ss >= pp->mediasize) 1153 goto hdrerror; 1154 /* Workaround for Adaptec implementation. */ 1155 if (GET16(meta, hdr->Max_Primary_Element_Entries) == 0xffff) { 1156 SET16(meta, hdr->Max_Primary_Element_Entries, 1157 min(GET16(meta, hdr->Max_PD_Entries), 1158 (GET16(meta, hdr->Configuration_Record_Length) * ss - 512) / 12)); 1159 } 1160 1161 if (GET32(meta, hdr->cd_length) * ss >= MAXPHYS || 1162 GET32(meta, hdr->pdr_length) * ss >= MAXPHYS || 1163 GET32(meta, hdr->vdr_length) * ss >= MAXPHYS || 1164 GET32(meta, hdr->cr_length) * ss >= MAXPHYS || 1165 GET32(meta, hdr->pdd_length) * ss >= MAXPHYS || 1166 GET32(meta, hdr->bbmlog_length) * ss >= MAXPHYS) { 1167 G_RAID_DEBUG(1, "%s: Blocksize is too big.", pp->name); 1168 goto hdrerror; 1169 } 1170 1171 /* Read controller data. */ 1172 buf = g_read_data(cp, (lba + GET32(meta, hdr->cd_section)) * ss, 1173 GET32(meta, hdr->cd_length) * ss, &error); 1174 if (buf == NULL) 1175 goto readerror; 1176 meta->cdr = malloc(GET32(meta, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK); 1177 memcpy(meta->cdr, buf, GET32(meta, hdr->cd_length) * ss); 1178 g_free(buf); 1179 if (GET32(meta, cdr->Signature) != DDF_CONTROLLER_DATA_SIGNATURE) 1180 goto hdrerror; 1181 1182 /* Read physical disk records. */ 1183 buf = g_read_data(cp, (lba + GET32(meta, hdr->pdr_section)) * ss, 1184 GET32(meta, hdr->pdr_length) * ss, &error); 1185 if (buf == NULL) 1186 goto readerror; 1187 meta->pdr = malloc(GET32(meta, hdr->pdr_length) * ss, M_MD_DDF, M_WAITOK); 1188 memcpy(meta->pdr, buf, GET32(meta, hdr->pdr_length) * ss); 1189 g_free(buf); 1190 if (GET32(meta, pdr->Signature) != DDF_PDR_SIGNATURE) 1191 goto hdrerror; 1192 /* 1193 * Workaround for reading metadata corrupted due to graid bug. 1194 * XXX: Remove this before we have disks above 128PB. :) 1195 */ 1196 if (meta->bigendian) { 1197 for (i = 0; i < GET16(meta, pdr->Populated_PDEs); i++) { 1198 if (isff(meta->pdr->entry[i].PD_GUID, 24)) 1199 continue; 1200 if (GET32(meta, pdr->entry[i].PD_Reference) == 1201 0xffffffff) 1202 continue; 1203 if (GET64(meta, pdr->entry[i].Configured_Size) >= 1204 (1ULL << 48)) { 1205 SET16(meta, pdr->entry[i].PD_State, 1206 GET16(meta, pdr->entry[i].PD_State) & 1207 ~DDF_PDE_FAILED); 1208 SET64(meta, pdr->entry[i].Configured_Size, 1209 GET64(meta, pdr->entry[i].Configured_Size) & 1210 ((1ULL << 48) - 1)); 1211 } 1212 } 1213 } 1214 1215 /* Read virtual disk records. */ 1216 buf = g_read_data(cp, (lba + GET32(meta, hdr->vdr_section)) * ss, 1217 GET32(meta, hdr->vdr_length) * ss, &error); 1218 if (buf == NULL) 1219 goto readerror; 1220 meta->vdr = malloc(GET32(meta, hdr->vdr_length) * ss, M_MD_DDF, M_WAITOK); 1221 memcpy(meta->vdr, buf, GET32(meta, hdr->vdr_length) * ss); 1222 g_free(buf); 1223 if (GET32(meta, vdr->Signature) != DDF_VD_RECORD_SIGNATURE) 1224 goto hdrerror; 1225 1226 /* Read configuration records. */ 1227 buf = g_read_data(cp, (lba + GET32(meta, hdr->cr_section)) * ss, 1228 GET32(meta, hdr->cr_length) * ss, &error); 1229 if (buf == NULL) 1230 goto readerror; 1231 meta->cr = malloc(GET32(meta, hdr->cr_length) * ss, M_MD_DDF, M_WAITOK); 1232 memcpy(meta->cr, buf, GET32(meta, hdr->cr_length) * ss); 1233 g_free(buf); 1234 1235 /* Read physical disk data. */ 1236 buf = g_read_data(cp, (lba + GET32(meta, hdr->pdd_section)) * ss, 1237 GET32(meta, hdr->pdd_length) * ss, &error); 1238 if (buf == NULL) 1239 goto readerror; 1240 meta->pdd = malloc(GET32(meta, hdr->pdd_length) * ss, M_MD_DDF, M_WAITOK); 1241 memcpy(meta->pdd, buf, GET32(meta, hdr->pdd_length) * ss); 1242 g_free(buf); 1243 if (GET32(meta, pdd->Signature) != DDF_PDD_SIGNATURE) 1244 goto hdrerror; 1245 i = ddf_meta_find_pd(meta, NULL, GET32(meta, pdd->PD_Reference)); 1246 if (i < 0) 1247 goto hdrerror; 1248 1249 /* Read BBM Log. */ 1250 if (GET32(meta, hdr->bbmlog_section) != 0xffffffff && 1251 GET32(meta, hdr->bbmlog_length) != 0) { 1252 buf = g_read_data(cp, (lba + GET32(meta, hdr->bbmlog_section)) * ss, 1253 GET32(meta, hdr->bbmlog_length) * ss, &error); 1254 if (buf == NULL) 1255 goto readerror; 1256 meta->bbm = malloc(GET32(meta, hdr->bbmlog_length) * ss, M_MD_DDF, M_WAITOK); 1257 memcpy(meta->bbm, buf, GET32(meta, hdr->bbmlog_length) * ss); 1258 g_free(buf); 1259 if (GET32(meta, bbm->Signature) != DDF_BBML_SIGNATURE) 1260 goto hdrerror; 1261 } 1262 1263 done: 1264 g_free(abuf); 1265 if (error != 0) 1266 ddf_meta_free(meta); 1267 return (error); 1268 } 1269 1270 static int 1271 ddf_meta_write(struct g_consumer *cp, struct ddf_meta *meta) 1272 { 1273 struct g_provider *pp; 1274 struct ddf_vdc_record *vdc; 1275 off_t alba, plba, slba, lba; 1276 u_int ss, size; 1277 int error, i, num; 1278 1279 pp = cp->provider; 1280 ss = pp->sectorsize; 1281 lba = alba = pp->mediasize / ss - 1; 1282 plba = GET64(meta, hdr->Primary_Header_LBA); 1283 slba = GET64(meta, hdr->Secondary_Header_LBA); 1284 1285 next: 1286 SET8(meta, hdr->Header_Type, (lba == alba) ? DDF_HEADER_ANCHOR : 1287 (lba == plba) ? DDF_HEADER_PRIMARY : DDF_HEADER_SECONDARY); 1288 SET32(meta, hdr->CRC, 0xffffffff); 1289 SET32(meta, hdr->CRC, crc32(meta->hdr, ss)); 1290 error = g_write_data(cp, lba * ss, meta->hdr, ss); 1291 if (error != 0) { 1292 err: 1293 G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).", 1294 pp->name, error); 1295 if (lba != alba) 1296 goto done; 1297 } 1298 if (lba == alba) { 1299 lba = plba; 1300 goto next; 1301 } 1302 1303 size = GET32(meta, hdr->cd_length) * ss; 1304 SET32(meta, cdr->CRC, 0xffffffff); 1305 SET32(meta, cdr->CRC, crc32(meta->cdr, size)); 1306 error = g_write_data(cp, (lba + GET32(meta, hdr->cd_section)) * ss, 1307 meta->cdr, size); 1308 if (error != 0) 1309 goto err; 1310 1311 size = GET32(meta, hdr->pdr_length) * ss; 1312 SET32(meta, pdr->CRC, 0xffffffff); 1313 SET32(meta, pdr->CRC, crc32(meta->pdr, size)); 1314 error = g_write_data(cp, (lba + GET32(meta, hdr->pdr_section)) * ss, 1315 meta->pdr, size); 1316 if (error != 0) 1317 goto err; 1318 1319 size = GET32(meta, hdr->vdr_length) * ss; 1320 SET32(meta, vdr->CRC, 0xffffffff); 1321 SET32(meta, vdr->CRC, crc32(meta->vdr, size)); 1322 error = g_write_data(cp, (lba + GET32(meta, hdr->vdr_section)) * ss, 1323 meta->vdr, size); 1324 if (error != 0) 1325 goto err; 1326 1327 size = GET16(meta, hdr->Configuration_Record_Length) * ss; 1328 num = GETCRNUM(meta); 1329 for (i = 0; i < num; i++) { 1330 vdc = GETVDCPTR(meta, i); 1331 SET32D(meta, vdc->CRC, 0xffffffff); 1332 SET32D(meta, vdc->CRC, crc32(vdc, size)); 1333 } 1334 error = g_write_data(cp, (lba + GET32(meta, hdr->cr_section)) * ss, 1335 meta->cr, size * num); 1336 if (error != 0) 1337 goto err; 1338 1339 size = GET32(meta, hdr->pdd_length) * ss; 1340 SET32(meta, pdd->CRC, 0xffffffff); 1341 SET32(meta, pdd->CRC, crc32(meta->pdd, size)); 1342 error = g_write_data(cp, (lba + GET32(meta, hdr->pdd_section)) * ss, 1343 meta->pdd, size); 1344 if (error != 0) 1345 goto err; 1346 1347 if (GET32(meta, hdr->bbmlog_length) != 0) { 1348 size = GET32(meta, hdr->bbmlog_length) * ss; 1349 SET32(meta, bbm->CRC, 0xffffffff); 1350 SET32(meta, bbm->CRC, crc32(meta->bbm, size)); 1351 error = g_write_data(cp, 1352 (lba + GET32(meta, hdr->bbmlog_section)) * ss, 1353 meta->bbm, size); 1354 if (error != 0) 1355 goto err; 1356 } 1357 1358 done: 1359 if (lba == plba && slba != -1) { 1360 lba = slba; 1361 goto next; 1362 } 1363 1364 return (error); 1365 } 1366 1367 static int 1368 ddf_meta_erase(struct g_consumer *cp) 1369 { 1370 struct g_provider *pp; 1371 char *buf; 1372 int error; 1373 1374 pp = cp->provider; 1375 buf = malloc(pp->sectorsize, M_MD_DDF, M_WAITOK | M_ZERO); 1376 error = g_write_data(cp, pp->mediasize - pp->sectorsize, 1377 buf, pp->sectorsize); 1378 if (error != 0) { 1379 G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).", 1380 pp->name, error); 1381 } 1382 free(buf, M_MD_DDF); 1383 return (error); 1384 } 1385 1386 static struct g_raid_volume * 1387 g_raid_md_ddf_get_volume(struct g_raid_softc *sc, uint8_t *GUID) 1388 { 1389 struct g_raid_volume *vol; 1390 struct g_raid_md_ddf_pervolume *pv; 1391 1392 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 1393 pv = vol->v_md_data; 1394 if (memcmp(pv->pv_meta.vde->VD_GUID, GUID, 24) == 0) 1395 break; 1396 } 1397 return (vol); 1398 } 1399 1400 static struct g_raid_disk * 1401 g_raid_md_ddf_get_disk(struct g_raid_softc *sc, uint8_t *GUID, uint32_t id) 1402 { 1403 struct g_raid_disk *disk; 1404 struct g_raid_md_ddf_perdisk *pd; 1405 struct ddf_meta *meta; 1406 1407 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1408 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 1409 meta = &pd->pd_meta; 1410 if (GUID != NULL) { 1411 if (memcmp(meta->pdd->PD_GUID, GUID, 24) == 0) 1412 break; 1413 } else { 1414 if (GET32(meta, pdd->PD_Reference) == id) 1415 break; 1416 } 1417 } 1418 return (disk); 1419 } 1420 1421 static int 1422 g_raid_md_ddf_purge_volumes(struct g_raid_softc *sc) 1423 { 1424 struct g_raid_volume *vol, *tvol; 1425 int i, res; 1426 1427 res = 0; 1428 TAILQ_FOREACH_SAFE(vol, &sc->sc_volumes, v_next, tvol) { 1429 if (vol->v_stopping) 1430 continue; 1431 for (i = 0; i < vol->v_disks_count; i++) { 1432 if (vol->v_subdisks[i].sd_state != G_RAID_SUBDISK_S_NONE) 1433 break; 1434 } 1435 if (i >= vol->v_disks_count) { 1436 g_raid_destroy_volume(vol); 1437 res = 1; 1438 } 1439 } 1440 return (res); 1441 } 1442 1443 static int 1444 g_raid_md_ddf_purge_disks(struct g_raid_softc *sc) 1445 { 1446 #if 0 1447 struct g_raid_disk *disk, *tdisk; 1448 struct g_raid_volume *vol; 1449 struct g_raid_md_ddf_perdisk *pd; 1450 int i, j, res; 1451 1452 res = 0; 1453 TAILQ_FOREACH_SAFE(disk, &sc->sc_disks, d_next, tdisk) { 1454 if (disk->d_state == G_RAID_DISK_S_SPARE) 1455 continue; 1456 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 1457 1458 /* Scan for deleted volumes. */ 1459 for (i = 0; i < pd->pd_subdisks; ) { 1460 vol = g_raid_md_ddf_get_volume(sc, 1461 pd->pd_meta[i]->volume_id); 1462 if (vol != NULL && !vol->v_stopping) { 1463 i++; 1464 continue; 1465 } 1466 free(pd->pd_meta[i], M_MD_DDF); 1467 for (j = i; j < pd->pd_subdisks - 1; j++) 1468 pd->pd_meta[j] = pd->pd_meta[j + 1]; 1469 pd->pd_meta[DDF_MAX_SUBDISKS - 1] = NULL; 1470 pd->pd_subdisks--; 1471 pd->pd_updated = 1; 1472 } 1473 1474 /* If there is no metadata left - erase and delete disk. */ 1475 if (pd->pd_subdisks == 0) { 1476 ddf_meta_erase(disk->d_consumer); 1477 g_raid_destroy_disk(disk); 1478 res = 1; 1479 } 1480 } 1481 return (res); 1482 #endif 1483 return (0); 1484 } 1485 1486 static int 1487 g_raid_md_ddf_supported(int level, int qual, int disks, int force) 1488 { 1489 1490 if (disks > DDF_MAX_DISKS_HARD) 1491 return (0); 1492 switch (level) { 1493 case G_RAID_VOLUME_RL_RAID0: 1494 if (qual != G_RAID_VOLUME_RLQ_NONE) 1495 return (0); 1496 if (disks < 1) 1497 return (0); 1498 if (!force && disks < 2) 1499 return (0); 1500 break; 1501 case G_RAID_VOLUME_RL_RAID1: 1502 if (disks < 1) 1503 return (0); 1504 if (qual == G_RAID_VOLUME_RLQ_R1SM) { 1505 if (!force && disks != 2) 1506 return (0); 1507 } else if (qual == G_RAID_VOLUME_RLQ_R1MM) { 1508 if (!force && disks != 3) 1509 return (0); 1510 } else 1511 return (0); 1512 break; 1513 case G_RAID_VOLUME_RL_RAID3: 1514 if (qual != G_RAID_VOLUME_RLQ_R3P0 && 1515 qual != G_RAID_VOLUME_RLQ_R3PN) 1516 return (0); 1517 if (disks < 3) 1518 return (0); 1519 break; 1520 case G_RAID_VOLUME_RL_RAID4: 1521 if (qual != G_RAID_VOLUME_RLQ_R4P0 && 1522 qual != G_RAID_VOLUME_RLQ_R4PN) 1523 return (0); 1524 if (disks < 3) 1525 return (0); 1526 break; 1527 case G_RAID_VOLUME_RL_RAID5: 1528 if (qual != G_RAID_VOLUME_RLQ_R5RA && 1529 qual != G_RAID_VOLUME_RLQ_R5RS && 1530 qual != G_RAID_VOLUME_RLQ_R5LA && 1531 qual != G_RAID_VOLUME_RLQ_R5LS) 1532 return (0); 1533 if (disks < 3) 1534 return (0); 1535 break; 1536 case G_RAID_VOLUME_RL_RAID6: 1537 if (qual != G_RAID_VOLUME_RLQ_R6RA && 1538 qual != G_RAID_VOLUME_RLQ_R6RS && 1539 qual != G_RAID_VOLUME_RLQ_R6LA && 1540 qual != G_RAID_VOLUME_RLQ_R6LS) 1541 return (0); 1542 if (disks < 4) 1543 return (0); 1544 break; 1545 case G_RAID_VOLUME_RL_RAIDMDF: 1546 if (qual != G_RAID_VOLUME_RLQ_RMDFRA && 1547 qual != G_RAID_VOLUME_RLQ_RMDFRS && 1548 qual != G_RAID_VOLUME_RLQ_RMDFLA && 1549 qual != G_RAID_VOLUME_RLQ_RMDFLS) 1550 return (0); 1551 if (disks < 4) 1552 return (0); 1553 break; 1554 case G_RAID_VOLUME_RL_RAID1E: 1555 if (qual != G_RAID_VOLUME_RLQ_R1EA && 1556 qual != G_RAID_VOLUME_RLQ_R1EO) 1557 return (0); 1558 if (disks < 3) 1559 return (0); 1560 break; 1561 case G_RAID_VOLUME_RL_SINGLE: 1562 if (qual != G_RAID_VOLUME_RLQ_NONE) 1563 return (0); 1564 if (disks != 1) 1565 return (0); 1566 break; 1567 case G_RAID_VOLUME_RL_CONCAT: 1568 if (qual != G_RAID_VOLUME_RLQ_NONE) 1569 return (0); 1570 if (disks < 2) 1571 return (0); 1572 break; 1573 case G_RAID_VOLUME_RL_RAID5E: 1574 if (qual != G_RAID_VOLUME_RLQ_R5ERA && 1575 qual != G_RAID_VOLUME_RLQ_R5ERS && 1576 qual != G_RAID_VOLUME_RLQ_R5ELA && 1577 qual != G_RAID_VOLUME_RLQ_R5ELS) 1578 return (0); 1579 if (disks < 4) 1580 return (0); 1581 break; 1582 case G_RAID_VOLUME_RL_RAID5EE: 1583 if (qual != G_RAID_VOLUME_RLQ_R5EERA && 1584 qual != G_RAID_VOLUME_RLQ_R5EERS && 1585 qual != G_RAID_VOLUME_RLQ_R5EELA && 1586 qual != G_RAID_VOLUME_RLQ_R5EELS) 1587 return (0); 1588 if (disks < 4) 1589 return (0); 1590 break; 1591 case G_RAID_VOLUME_RL_RAID5R: 1592 if (qual != G_RAID_VOLUME_RLQ_R5RRA && 1593 qual != G_RAID_VOLUME_RLQ_R5RRS && 1594 qual != G_RAID_VOLUME_RLQ_R5RLA && 1595 qual != G_RAID_VOLUME_RLQ_R5RLS) 1596 return (0); 1597 if (disks < 3) 1598 return (0); 1599 break; 1600 default: 1601 return (0); 1602 } 1603 return (1); 1604 } 1605 1606 static int 1607 g_raid_md_ddf_start_disk(struct g_raid_disk *disk, struct g_raid_volume *vol) 1608 { 1609 struct g_raid_softc *sc; 1610 struct g_raid_subdisk *sd; 1611 struct g_raid_md_ddf_perdisk *pd; 1612 struct g_raid_md_ddf_pervolume *pv; 1613 struct g_raid_md_ddf_object *mdi; 1614 struct ddf_vol_meta *vmeta; 1615 struct ddf_meta *pdmeta, *gmeta; 1616 struct ddf_vdc_record *vdc1; 1617 struct ddf_sa_record *sa; 1618 off_t size, eoff = 0, esize = 0; 1619 uint64_t *val2; 1620 int disk_pos, md_disk_bvd = -1, md_disk_pos = -1, md_pde_pos; 1621 int i, resurrection = 0; 1622 uint32_t reference; 1623 1624 sc = disk->d_softc; 1625 mdi = (struct g_raid_md_ddf_object *)sc->sc_md; 1626 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 1627 pdmeta = &pd->pd_meta; 1628 reference = GET32(&pd->pd_meta, pdd->PD_Reference); 1629 1630 pv = vol->v_md_data; 1631 vmeta = &pv->pv_meta; 1632 gmeta = &mdi->mdio_meta; 1633 1634 /* Find disk position in metadata by its reference. */ 1635 disk_pos = ddf_meta_find_disk(vmeta, reference, 1636 &md_disk_bvd, &md_disk_pos); 1637 md_pde_pos = ddf_meta_find_pd(gmeta, NULL, reference); 1638 1639 if (disk_pos < 0) { 1640 G_RAID_DEBUG1(1, sc, 1641 "Disk %s is not a present part of the volume %s", 1642 g_raid_get_diskname(disk), vol->v_name); 1643 1644 /* Failed stale disk is useless for us. */ 1645 if ((GET16(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA) != 0) { 1646 g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE_FAILED); 1647 return (0); 1648 } 1649 1650 /* If disk has some metadata for this volume - erase. */ 1651 if ((vdc1 = ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID)) != NULL) 1652 SET32D(pdmeta, vdc1->Signature, 0xffffffff); 1653 1654 /* If we are in the start process, that's all for now. */ 1655 if (!pv->pv_started) 1656 goto nofit; 1657 /* 1658 * If we have already started - try to get use of the disk. 1659 * Try to replace OFFLINE disks first, then FAILED. 1660 */ 1661 if (ddf_meta_count_vdc(&pd->pd_meta, NULL) >= 1662 GET16(&pd->pd_meta, hdr->Max_Partitions)) { 1663 G_RAID_DEBUG1(1, sc, "No free partitions on disk %s", 1664 g_raid_get_diskname(disk)); 1665 goto nofit; 1666 } 1667 ddf_meta_unused_range(&pd->pd_meta, &eoff, &esize); 1668 if (esize == 0) { 1669 G_RAID_DEBUG1(1, sc, "No free space on disk %s", 1670 g_raid_get_diskname(disk)); 1671 goto nofit; 1672 } 1673 eoff *= pd->pd_meta.sectorsize; 1674 esize *= pd->pd_meta.sectorsize; 1675 size = INT64_MAX; 1676 for (i = 0; i < vol->v_disks_count; i++) { 1677 sd = &vol->v_subdisks[i]; 1678 if (sd->sd_state != G_RAID_SUBDISK_S_NONE) 1679 size = sd->sd_size; 1680 if (sd->sd_state <= G_RAID_SUBDISK_S_FAILED && 1681 (disk_pos < 0 || 1682 vol->v_subdisks[i].sd_state < sd->sd_state)) 1683 disk_pos = i; 1684 } 1685 if (disk_pos >= 0 && 1686 vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT && 1687 esize < size) { 1688 G_RAID_DEBUG1(1, sc, "Disk %s free space " 1689 "is too small (%ju < %ju)", 1690 g_raid_get_diskname(disk), esize, size); 1691 disk_pos = -1; 1692 } 1693 if (disk_pos >= 0) { 1694 if (vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT) 1695 esize = size; 1696 md_disk_bvd = disk_pos / GET16(vmeta, vdc->Primary_Element_Count); // XXX 1697 md_disk_pos = disk_pos % GET16(vmeta, vdc->Primary_Element_Count); // XXX 1698 } else { 1699 nofit: 1700 if (disk->d_state == G_RAID_DISK_S_NONE) 1701 g_raid_change_disk_state(disk, 1702 G_RAID_DISK_S_STALE); 1703 return (0); 1704 } 1705 1706 /* 1707 * If spare is committable, delete spare record. 1708 * Othersize, mark it active and leave there. 1709 */ 1710 sa = ddf_meta_find_sa(&pd->pd_meta, 0); 1711 if (sa != NULL) { 1712 if ((GET8D(&pd->pd_meta, sa->Spare_Type) & 1713 DDF_SAR_TYPE_REVERTIBLE) == 0) { 1714 SET32D(&pd->pd_meta, sa->Signature, 0xffffffff); 1715 } else { 1716 SET8D(&pd->pd_meta, sa->Spare_Type, 1717 GET8D(&pd->pd_meta, sa->Spare_Type) | 1718 DDF_SAR_TYPE_ACTIVE); 1719 } 1720 } 1721 1722 G_RAID_DEBUG1(1, sc, "Disk %s takes pos %d in the volume %s", 1723 g_raid_get_diskname(disk), disk_pos, vol->v_name); 1724 resurrection = 1; 1725 } 1726 1727 sd = &vol->v_subdisks[disk_pos]; 1728 1729 if (resurrection && sd->sd_disk != NULL) { 1730 g_raid_change_disk_state(sd->sd_disk, 1731 G_RAID_DISK_S_STALE_FAILED); 1732 TAILQ_REMOVE(&sd->sd_disk->d_subdisks, 1733 sd, sd_next); 1734 } 1735 vol->v_subdisks[disk_pos].sd_disk = disk; 1736 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 1737 1738 /* Welcome the new disk. */ 1739 if (resurrection) 1740 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 1741 else if (GET16(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA) 1742 g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED); 1743 else 1744 g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE); 1745 1746 if (resurrection) { 1747 sd->sd_offset = eoff; 1748 sd->sd_size = esize; 1749 } else if (pdmeta->cr != NULL && 1750 (vdc1 = ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID)) != NULL) { 1751 val2 = (uint64_t *)&(vdc1->Physical_Disk_Sequence[GET16(vmeta, hdr->Max_Primary_Element_Entries)]); 1752 sd->sd_offset = (off_t)GET64P(pdmeta, val2 + md_disk_pos) * 512; 1753 sd->sd_size = (off_t)GET64D(pdmeta, vdc1->Block_Count) * 512; 1754 } 1755 1756 if (resurrection) { 1757 /* Stale disk, almost same as new. */ 1758 g_raid_change_subdisk_state(sd, 1759 G_RAID_SUBDISK_S_NEW); 1760 } else if (GET16(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA) { 1761 /* Failed disk. */ 1762 g_raid_change_subdisk_state(sd, 1763 G_RAID_SUBDISK_S_FAILED); 1764 } else if ((GET16(gmeta, pdr->entry[md_pde_pos].PD_State) & 1765 (DDF_PDE_FAILED | DDF_PDE_REBUILD)) != 0) { 1766 /* Rebuilding disk. */ 1767 g_raid_change_subdisk_state(sd, 1768 G_RAID_SUBDISK_S_REBUILD); 1769 sd->sd_rebuild_pos = 0; 1770 } else if ((GET8(vmeta, vde->VD_State) & DDF_VDE_DIRTY) != 0 || 1771 (GET8(vmeta, vde->Init_State) & DDF_VDE_INIT_MASK) != 1772 DDF_VDE_INIT_FULL) { 1773 /* Stale disk or dirty volume (unclean shutdown). */ 1774 g_raid_change_subdisk_state(sd, 1775 G_RAID_SUBDISK_S_STALE); 1776 } else { 1777 /* Up to date disk. */ 1778 g_raid_change_subdisk_state(sd, 1779 G_RAID_SUBDISK_S_ACTIVE); 1780 } 1781 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 1782 G_RAID_EVENT_SUBDISK); 1783 1784 return (resurrection); 1785 } 1786 1787 static void 1788 g_raid_md_ddf_refill(struct g_raid_softc *sc) 1789 { 1790 struct g_raid_volume *vol; 1791 struct g_raid_subdisk *sd; 1792 struct g_raid_disk *disk; 1793 struct g_raid_md_object *md; 1794 struct g_raid_md_ddf_perdisk *pd; 1795 struct g_raid_md_ddf_pervolume *pv; 1796 int update, updated, i, bad; 1797 1798 md = sc->sc_md; 1799 restart: 1800 updated = 0; 1801 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 1802 pv = vol->v_md_data; 1803 if (!pv->pv_started || vol->v_stopping) 1804 continue; 1805 1806 /* Search for subdisk that needs replacement. */ 1807 bad = 0; 1808 for (i = 0; i < vol->v_disks_count; i++) { 1809 sd = &vol->v_subdisks[i]; 1810 if (sd->sd_state == G_RAID_SUBDISK_S_NONE || 1811 sd->sd_state == G_RAID_SUBDISK_S_FAILED) 1812 bad = 1; 1813 } 1814 if (!bad) 1815 continue; 1816 1817 G_RAID_DEBUG1(1, sc, "Volume %s is not complete, " 1818 "trying to refill.", vol->v_name); 1819 1820 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1821 /* Skip failed. */ 1822 if (disk->d_state < G_RAID_DISK_S_SPARE) 1823 continue; 1824 /* Skip already used by this volume. */ 1825 for (i = 0; i < vol->v_disks_count; i++) { 1826 sd = &vol->v_subdisks[i]; 1827 if (sd->sd_disk == disk) 1828 break; 1829 } 1830 if (i < vol->v_disks_count) 1831 continue; 1832 1833 /* Try to use disk if it has empty extents. */ 1834 pd = disk->d_md_data; 1835 if (ddf_meta_count_vdc(&pd->pd_meta, NULL) < 1836 GET16(&pd->pd_meta, hdr->Max_Partitions)) { 1837 update = g_raid_md_ddf_start_disk(disk, vol); 1838 } else 1839 update = 0; 1840 if (update) { 1841 updated = 1; 1842 g_raid_md_write_ddf(md, vol, NULL, disk); 1843 break; 1844 } 1845 } 1846 } 1847 if (updated) 1848 goto restart; 1849 } 1850 1851 static void 1852 g_raid_md_ddf_start(struct g_raid_volume *vol) 1853 { 1854 struct g_raid_softc *sc; 1855 struct g_raid_subdisk *sd; 1856 struct g_raid_disk *disk; 1857 struct g_raid_md_object *md; 1858 struct g_raid_md_ddf_perdisk *pd; 1859 struct g_raid_md_ddf_pervolume *pv; 1860 struct g_raid_md_ddf_object *mdi; 1861 struct ddf_vol_meta *vmeta; 1862 uint64_t *val2; 1863 int i, j, bvd; 1864 1865 sc = vol->v_softc; 1866 md = sc->sc_md; 1867 mdi = (struct g_raid_md_ddf_object *)md; 1868 pv = vol->v_md_data; 1869 vmeta = &pv->pv_meta; 1870 1871 vol->v_raid_level = GET8(vmeta, vdc->Primary_RAID_Level); 1872 vol->v_raid_level_qualifier = GET8(vmeta, vdc->RLQ); 1873 if (GET8(vmeta, vdc->Secondary_Element_Count) > 1 && 1874 vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 && 1875 GET8(vmeta, vdc->Secondary_RAID_Level) == 0) 1876 vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E; 1877 vol->v_sectorsize = GET16(vmeta, vdc->Block_Size); 1878 if (vol->v_sectorsize == 0xffff) 1879 vol->v_sectorsize = vmeta->sectorsize; 1880 vol->v_strip_size = vol->v_sectorsize << GET8(vmeta, vdc->Stripe_Size); 1881 vol->v_disks_count = GET16(vmeta, vdc->Primary_Element_Count) * 1882 GET8(vmeta, vdc->Secondary_Element_Count); 1883 vol->v_mdf_pdisks = GET8(vmeta, vdc->MDF_Parity_Disks); 1884 vol->v_mdf_polynomial = GET16(vmeta, vdc->MDF_Parity_Generator_Polynomial); 1885 vol->v_mdf_method = GET8(vmeta, vdc->MDF_Constant_Generation_Method); 1886 if (GET8(vmeta, vdc->Rotate_Parity_count) > 31) 1887 vol->v_rotate_parity = 1; 1888 else 1889 vol->v_rotate_parity = 1 << GET8(vmeta, vdc->Rotate_Parity_count); 1890 vol->v_mediasize = GET64(vmeta, vdc->VD_Size) * vol->v_sectorsize; 1891 for (i = 0, j = 0, bvd = 0; i < vol->v_disks_count; i++, j++) { 1892 if (j == GET16(vmeta, vdc->Primary_Element_Count)) { 1893 j = 0; 1894 bvd++; 1895 } 1896 sd = &vol->v_subdisks[i]; 1897 if (vmeta->bvdc[bvd] == NULL) { 1898 sd->sd_offset = 0; 1899 sd->sd_size = GET64(vmeta, vdc->Block_Count) * 1900 vol->v_sectorsize; 1901 continue; 1902 } 1903 val2 = (uint64_t *)&(vmeta->bvdc[bvd]->Physical_Disk_Sequence[ 1904 GET16(vmeta, hdr->Max_Primary_Element_Entries)]); 1905 sd->sd_offset = GET64P(vmeta, val2 + j) * vol->v_sectorsize; 1906 sd->sd_size = GET64(vmeta, bvdc[bvd]->Block_Count) * 1907 vol->v_sectorsize; 1908 } 1909 g_raid_start_volume(vol); 1910 1911 /* Make all disks found till the moment take their places. */ 1912 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 1913 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 1914 if (ddf_meta_find_vdc(&pd->pd_meta, vmeta->vdc->VD_GUID) != NULL) 1915 g_raid_md_ddf_start_disk(disk, vol); 1916 } 1917 1918 pv->pv_started = 1; 1919 mdi->mdio_starting--; 1920 callout_stop(&pv->pv_start_co); 1921 G_RAID_DEBUG1(0, sc, "Volume started."); 1922 g_raid_md_write_ddf(md, vol, NULL, NULL); 1923 1924 /* Pickup any STALE/SPARE disks to refill array if needed. */ 1925 g_raid_md_ddf_refill(sc); 1926 1927 g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME); 1928 } 1929 1930 static void 1931 g_raid_ddf_go(void *arg) 1932 { 1933 struct g_raid_volume *vol; 1934 struct g_raid_softc *sc; 1935 struct g_raid_md_ddf_pervolume *pv; 1936 1937 vol = arg; 1938 pv = vol->v_md_data; 1939 sc = vol->v_softc; 1940 if (!pv->pv_started) { 1941 G_RAID_DEBUG1(0, sc, "Force volume start due to timeout."); 1942 g_raid_event_send(vol, G_RAID_VOLUME_E_STARTMD, 1943 G_RAID_EVENT_VOLUME); 1944 } 1945 } 1946 1947 static void 1948 g_raid_md_ddf_new_disk(struct g_raid_disk *disk) 1949 { 1950 struct g_raid_softc *sc; 1951 struct g_raid_md_object *md; 1952 struct g_raid_md_ddf_perdisk *pd; 1953 struct g_raid_md_ddf_pervolume *pv; 1954 struct g_raid_md_ddf_object *mdi; 1955 struct g_raid_volume *vol; 1956 struct ddf_meta *pdmeta; 1957 struct ddf_vol_meta *vmeta; 1958 struct ddf_vdc_record *vdc; 1959 struct ddf_vd_entry *vde; 1960 int i, j, k, num, have, need, cnt, spare; 1961 uint32_t val; 1962 char buf[17]; 1963 1964 sc = disk->d_softc; 1965 md = sc->sc_md; 1966 mdi = (struct g_raid_md_ddf_object *)md; 1967 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 1968 pdmeta = &pd->pd_meta; 1969 spare = -1; 1970 1971 if (mdi->mdio_meta.hdr == NULL) 1972 ddf_meta_copy(&mdi->mdio_meta, pdmeta); 1973 else 1974 ddf_meta_update(&mdi->mdio_meta, pdmeta); 1975 1976 num = GETCRNUM(pdmeta); 1977 for (j = 0; j < num; j++) { 1978 vdc = GETVDCPTR(pdmeta, j); 1979 val = GET32D(pdmeta, vdc->Signature); 1980 1981 if (val == DDF_SA_SIGNATURE && spare == -1) 1982 spare = 1; 1983 1984 if (val != DDF_VDCR_SIGNATURE) 1985 continue; 1986 spare = 0; 1987 k = ddf_meta_find_vd(pdmeta, vdc->VD_GUID); 1988 if (k < 0) 1989 continue; 1990 vde = &pdmeta->vdr->entry[k]; 1991 1992 /* Look for volume with matching ID. */ 1993 vol = g_raid_md_ddf_get_volume(sc, vdc->VD_GUID); 1994 if (vol == NULL) { 1995 ddf_meta_get_name(pdmeta, k, buf); 1996 vol = g_raid_create_volume(sc, buf, 1997 GET16D(pdmeta, vde->VD_Number)); 1998 pv = malloc(sizeof(*pv), M_MD_DDF, M_WAITOK | M_ZERO); 1999 vol->v_md_data = pv; 2000 callout_init(&pv->pv_start_co, 1); 2001 callout_reset(&pv->pv_start_co, 2002 g_raid_start_timeout * hz, 2003 g_raid_ddf_go, vol); 2004 mdi->mdio_starting++; 2005 } else 2006 pv = vol->v_md_data; 2007 2008 /* If we haven't started yet - check metadata freshness. */ 2009 vmeta = &pv->pv_meta; 2010 ddf_vol_meta_update(vmeta, pdmeta, vdc->VD_GUID, pv->pv_started); 2011 } 2012 2013 if (spare == 1) { 2014 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 2015 g_raid_md_ddf_refill(sc); 2016 } 2017 2018 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 2019 pv = vol->v_md_data; 2020 vmeta = &pv->pv_meta; 2021 2022 if (ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID) == NULL) 2023 continue; 2024 2025 if (pv->pv_started) { 2026 if (g_raid_md_ddf_start_disk(disk, vol)) 2027 g_raid_md_write_ddf(md, vol, NULL, NULL); 2028 continue; 2029 } 2030 2031 /* If we collected all needed disks - start array. */ 2032 need = 0; 2033 have = 0; 2034 for (k = 0; k < GET8(vmeta, vdc->Secondary_Element_Count); k++) { 2035 if (vmeta->bvdc[k] == NULL) { 2036 need += GET16(vmeta, vdc->Primary_Element_Count); 2037 continue; 2038 } 2039 cnt = GET16(vmeta, bvdc[k]->Primary_Element_Count); 2040 need += cnt; 2041 for (i = 0; i < cnt; i++) { 2042 val = GET32(vmeta, bvdc[k]->Physical_Disk_Sequence[i]); 2043 if (g_raid_md_ddf_get_disk(sc, NULL, val) != NULL) 2044 have++; 2045 } 2046 } 2047 G_RAID_DEBUG1(1, sc, "Volume %s now has %d of %d disks", 2048 vol->v_name, have, need); 2049 if (have == need) 2050 g_raid_md_ddf_start(vol); 2051 } 2052 } 2053 2054 static int 2055 g_raid_md_create_req_ddf(struct g_raid_md_object *md, struct g_class *mp, 2056 struct gctl_req *req, struct g_geom **gp) 2057 { 2058 struct g_geom *geom; 2059 struct g_raid_softc *sc; 2060 struct g_raid_md_ddf_object *mdi, *mdi1; 2061 char name[16]; 2062 const char *fmtopt; 2063 int be = 1; 2064 2065 mdi = (struct g_raid_md_ddf_object *)md; 2066 fmtopt = gctl_get_asciiparam(req, "fmtopt"); 2067 if (fmtopt == NULL || strcasecmp(fmtopt, "BE") == 0) 2068 be = 1; 2069 else if (strcasecmp(fmtopt, "LE") == 0) 2070 be = 0; 2071 else { 2072 gctl_error(req, "Incorrect fmtopt argument."); 2073 return (G_RAID_MD_TASTE_FAIL); 2074 } 2075 2076 /* Search for existing node. */ 2077 LIST_FOREACH(geom, &mp->geom, geom) { 2078 sc = geom->softc; 2079 if (sc == NULL) 2080 continue; 2081 if (sc->sc_stopping != 0) 2082 continue; 2083 if (sc->sc_md->mdo_class != md->mdo_class) 2084 continue; 2085 mdi1 = (struct g_raid_md_ddf_object *)sc->sc_md; 2086 if (mdi1->mdio_bigendian != be) 2087 continue; 2088 break; 2089 } 2090 if (geom != NULL) { 2091 *gp = geom; 2092 return (G_RAID_MD_TASTE_EXISTING); 2093 } 2094 2095 /* Create new one if not found. */ 2096 mdi->mdio_bigendian = be; 2097 snprintf(name, sizeof(name), "DDF%s", be ? "" : "-LE"); 2098 sc = g_raid_create_node(mp, name, md); 2099 if (sc == NULL) 2100 return (G_RAID_MD_TASTE_FAIL); 2101 md->mdo_softc = sc; 2102 *gp = sc->sc_geom; 2103 return (G_RAID_MD_TASTE_NEW); 2104 } 2105 2106 static int 2107 g_raid_md_taste_ddf(struct g_raid_md_object *md, struct g_class *mp, 2108 struct g_consumer *cp, struct g_geom **gp) 2109 { 2110 struct g_consumer *rcp; 2111 struct g_provider *pp; 2112 struct g_raid_softc *sc; 2113 struct g_raid_disk *disk; 2114 struct ddf_meta meta; 2115 struct g_raid_md_ddf_perdisk *pd; 2116 struct g_raid_md_ddf_object *mdi; 2117 struct g_geom *geom; 2118 int error, result, be; 2119 char name[16]; 2120 2121 G_RAID_DEBUG(1, "Tasting DDF on %s", cp->provider->name); 2122 mdi = (struct g_raid_md_ddf_object *)md; 2123 pp = cp->provider; 2124 2125 /* Read metadata from device. */ 2126 g_topology_unlock(); 2127 bzero(&meta, sizeof(meta)); 2128 error = ddf_meta_read(cp, &meta); 2129 g_topology_lock(); 2130 if (error != 0) 2131 return (G_RAID_MD_TASTE_FAIL); 2132 be = meta.bigendian; 2133 2134 /* Metadata valid. Print it. */ 2135 g_raid_md_ddf_print(&meta); 2136 2137 /* Search for matching node. */ 2138 sc = NULL; 2139 LIST_FOREACH(geom, &mp->geom, geom) { 2140 sc = geom->softc; 2141 if (sc == NULL) 2142 continue; 2143 if (sc->sc_stopping != 0) 2144 continue; 2145 if (sc->sc_md->mdo_class != md->mdo_class) 2146 continue; 2147 mdi = (struct g_raid_md_ddf_object *)sc->sc_md; 2148 if (mdi->mdio_bigendian != be) 2149 continue; 2150 break; 2151 } 2152 2153 /* Found matching node. */ 2154 if (geom != NULL) { 2155 G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name); 2156 result = G_RAID_MD_TASTE_EXISTING; 2157 2158 } else { /* Not found matching node -- create one. */ 2159 result = G_RAID_MD_TASTE_NEW; 2160 mdi->mdio_bigendian = be; 2161 snprintf(name, sizeof(name), "DDF%s", be ? "" : "-LE"); 2162 sc = g_raid_create_node(mp, name, md); 2163 md->mdo_softc = sc; 2164 geom = sc->sc_geom; 2165 } 2166 2167 /* There is no return after this point, so we close passed consumer. */ 2168 g_access(cp, -1, 0, 0); 2169 2170 rcp = g_new_consumer(geom); 2171 rcp->flags |= G_CF_DIRECT_RECEIVE; 2172 g_attach(rcp, pp); 2173 if (g_access(rcp, 1, 1, 1) != 0) 2174 ; //goto fail1; 2175 2176 g_topology_unlock(); 2177 sx_xlock(&sc->sc_lock); 2178 2179 pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO); 2180 pd->pd_meta = meta; 2181 disk = g_raid_create_disk(sc); 2182 disk->d_md_data = (void *)pd; 2183 disk->d_consumer = rcp; 2184 rcp->private = disk; 2185 2186 g_raid_get_disk_info(disk); 2187 2188 g_raid_md_ddf_new_disk(disk); 2189 2190 sx_xunlock(&sc->sc_lock); 2191 g_topology_lock(); 2192 *gp = geom; 2193 return (result); 2194 } 2195 2196 static int 2197 g_raid_md_event_ddf(struct g_raid_md_object *md, 2198 struct g_raid_disk *disk, u_int event) 2199 { 2200 struct g_raid_softc *sc; 2201 2202 sc = md->mdo_softc; 2203 if (disk == NULL) 2204 return (-1); 2205 switch (event) { 2206 case G_RAID_DISK_E_DISCONNECTED: 2207 /* Delete disk. */ 2208 g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE); 2209 g_raid_destroy_disk(disk); 2210 g_raid_md_ddf_purge_volumes(sc); 2211 2212 /* Write updated metadata to all disks. */ 2213 g_raid_md_write_ddf(md, NULL, NULL, NULL); 2214 2215 /* Check if anything left. */ 2216 if (g_raid_ndisks(sc, -1) == 0) 2217 g_raid_destroy_node(sc, 0); 2218 else 2219 g_raid_md_ddf_refill(sc); 2220 return (0); 2221 } 2222 return (-2); 2223 } 2224 2225 static int 2226 g_raid_md_volume_event_ddf(struct g_raid_md_object *md, 2227 struct g_raid_volume *vol, u_int event) 2228 { 2229 struct g_raid_md_ddf_pervolume *pv; 2230 2231 pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data; 2232 switch (event) { 2233 case G_RAID_VOLUME_E_STARTMD: 2234 if (!pv->pv_started) 2235 g_raid_md_ddf_start(vol); 2236 return (0); 2237 } 2238 return (-2); 2239 } 2240 2241 static int 2242 g_raid_md_ctl_ddf(struct g_raid_md_object *md, 2243 struct gctl_req *req) 2244 { 2245 struct g_raid_softc *sc; 2246 struct g_raid_volume *vol, *vol1; 2247 struct g_raid_subdisk *sd; 2248 struct g_raid_disk *disk, *disks[DDF_MAX_DISKS_HARD]; 2249 struct g_raid_md_ddf_perdisk *pd; 2250 struct g_raid_md_ddf_pervolume *pv; 2251 struct g_raid_md_ddf_object *mdi; 2252 struct ddf_sa_record *sa; 2253 struct g_consumer *cp; 2254 struct g_provider *pp; 2255 char arg[16]; 2256 const char *nodename, *verb, *volname, *levelname, *diskname; 2257 char *tmp; 2258 int *nargs, *force; 2259 off_t size, sectorsize, strip, offs[DDF_MAX_DISKS_HARD], esize; 2260 intmax_t *sizearg, *striparg; 2261 int i, numdisks, len, level, qual; 2262 int error; 2263 2264 sc = md->mdo_softc; 2265 mdi = (struct g_raid_md_ddf_object *)md; 2266 verb = gctl_get_param(req, "verb", NULL); 2267 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 2268 error = 0; 2269 2270 if (strcmp(verb, "label") == 0) { 2271 2272 if (*nargs < 4) { 2273 gctl_error(req, "Invalid number of arguments."); 2274 return (-1); 2275 } 2276 volname = gctl_get_asciiparam(req, "arg1"); 2277 if (volname == NULL) { 2278 gctl_error(req, "No volume name."); 2279 return (-2); 2280 } 2281 levelname = gctl_get_asciiparam(req, "arg2"); 2282 if (levelname == NULL) { 2283 gctl_error(req, "No RAID level."); 2284 return (-3); 2285 } 2286 if (g_raid_volume_str2level(levelname, &level, &qual)) { 2287 gctl_error(req, "Unknown RAID level '%s'.", levelname); 2288 return (-4); 2289 } 2290 numdisks = *nargs - 3; 2291 force = gctl_get_paraml(req, "force", sizeof(*force)); 2292 if (!g_raid_md_ddf_supported(level, qual, numdisks, 2293 force ? *force : 0)) { 2294 gctl_error(req, "Unsupported RAID level " 2295 "(0x%02x/0x%02x), or number of disks (%d).", 2296 level, qual, numdisks); 2297 return (-5); 2298 } 2299 2300 /* Search for disks, connect them and probe. */ 2301 size = INT64_MAX; 2302 sectorsize = 0; 2303 bzero(disks, sizeof(disks)); 2304 bzero(offs, sizeof(offs)); 2305 for (i = 0; i < numdisks; i++) { 2306 snprintf(arg, sizeof(arg), "arg%d", i + 3); 2307 diskname = gctl_get_asciiparam(req, arg); 2308 if (diskname == NULL) { 2309 gctl_error(req, "No disk name (%s).", arg); 2310 error = -6; 2311 break; 2312 } 2313 if (strcmp(diskname, "NONE") == 0) 2314 continue; 2315 2316 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2317 if (disk->d_consumer != NULL && 2318 disk->d_consumer->provider != NULL && 2319 strcmp(disk->d_consumer->provider->name, 2320 diskname) == 0) 2321 break; 2322 } 2323 if (disk != NULL) { 2324 if (disk->d_state != G_RAID_DISK_S_ACTIVE) { 2325 gctl_error(req, "Disk '%s' is in a " 2326 "wrong state (%s).", diskname, 2327 g_raid_disk_state2str(disk->d_state)); 2328 error = -7; 2329 break; 2330 } 2331 pd = disk->d_md_data; 2332 if (ddf_meta_count_vdc(&pd->pd_meta, NULL) >= 2333 GET16(&pd->pd_meta, hdr->Max_Partitions)) { 2334 gctl_error(req, "No free partitions " 2335 "on disk '%s'.", 2336 diskname); 2337 error = -7; 2338 break; 2339 } 2340 pp = disk->d_consumer->provider; 2341 disks[i] = disk; 2342 ddf_meta_unused_range(&pd->pd_meta, 2343 &offs[i], &esize); 2344 offs[i] *= pp->sectorsize; 2345 size = MIN(size, (off_t)esize * pp->sectorsize); 2346 sectorsize = MAX(sectorsize, pp->sectorsize); 2347 continue; 2348 } 2349 2350 g_topology_lock(); 2351 cp = g_raid_open_consumer(sc, diskname); 2352 if (cp == NULL) { 2353 gctl_error(req, "Can't open disk '%s'.", 2354 diskname); 2355 g_topology_unlock(); 2356 error = -8; 2357 break; 2358 } 2359 pp = cp->provider; 2360 pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO); 2361 disk = g_raid_create_disk(sc); 2362 disk->d_md_data = (void *)pd; 2363 disk->d_consumer = cp; 2364 disks[i] = disk; 2365 cp->private = disk; 2366 ddf_meta_create(disk, &mdi->mdio_meta); 2367 if (mdi->mdio_meta.hdr == NULL) 2368 ddf_meta_copy(&mdi->mdio_meta, &pd->pd_meta); 2369 else 2370 ddf_meta_update(&mdi->mdio_meta, &pd->pd_meta); 2371 g_topology_unlock(); 2372 2373 g_raid_get_disk_info(disk); 2374 2375 /* Reserve some space for metadata. */ 2376 size = MIN(size, GET64(&pd->pd_meta, 2377 pdr->entry[0].Configured_Size) * pp->sectorsize); 2378 sectorsize = MAX(sectorsize, pp->sectorsize); 2379 } 2380 if (error != 0) { 2381 for (i = 0; i < numdisks; i++) { 2382 if (disks[i] != NULL && 2383 disks[i]->d_state == G_RAID_DISK_S_NONE) 2384 g_raid_destroy_disk(disks[i]); 2385 } 2386 return (error); 2387 } 2388 2389 if (sectorsize <= 0) { 2390 gctl_error(req, "Can't get sector size."); 2391 return (-8); 2392 } 2393 2394 /* Handle size argument. */ 2395 len = sizeof(*sizearg); 2396 sizearg = gctl_get_param(req, "size", &len); 2397 if (sizearg != NULL && len == sizeof(*sizearg) && 2398 *sizearg > 0) { 2399 if (*sizearg > size) { 2400 gctl_error(req, "Size too big %lld > %lld.", 2401 (long long)*sizearg, (long long)size); 2402 return (-9); 2403 } 2404 size = *sizearg; 2405 } 2406 2407 /* Handle strip argument. */ 2408 strip = 131072; 2409 len = sizeof(*striparg); 2410 striparg = gctl_get_param(req, "strip", &len); 2411 if (striparg != NULL && len == sizeof(*striparg) && 2412 *striparg > 0) { 2413 if (*striparg < sectorsize) { 2414 gctl_error(req, "Strip size too small."); 2415 return (-10); 2416 } 2417 if (*striparg % sectorsize != 0) { 2418 gctl_error(req, "Incorrect strip size."); 2419 return (-11); 2420 } 2421 strip = *striparg; 2422 } 2423 2424 /* Round size down to strip or sector. */ 2425 if (level == G_RAID_VOLUME_RL_RAID1 || 2426 level == G_RAID_VOLUME_RL_RAID3 || 2427 level == G_RAID_VOLUME_RL_SINGLE || 2428 level == G_RAID_VOLUME_RL_CONCAT) 2429 size -= (size % sectorsize); 2430 else if (level == G_RAID_VOLUME_RL_RAID1E && 2431 (numdisks & 1) != 0) 2432 size -= (size % (2 * strip)); 2433 else 2434 size -= (size % strip); 2435 if (size <= 0) { 2436 gctl_error(req, "Size too small."); 2437 return (-13); 2438 } 2439 2440 /* We have all we need, create things: volume, ... */ 2441 pv = malloc(sizeof(*pv), M_MD_DDF, M_WAITOK | M_ZERO); 2442 ddf_vol_meta_create(&pv->pv_meta, &mdi->mdio_meta); 2443 pv->pv_started = 1; 2444 vol = g_raid_create_volume(sc, volname, -1); 2445 vol->v_md_data = pv; 2446 vol->v_raid_level = level; 2447 vol->v_raid_level_qualifier = qual; 2448 vol->v_strip_size = strip; 2449 vol->v_disks_count = numdisks; 2450 if (level == G_RAID_VOLUME_RL_RAID0 || 2451 level == G_RAID_VOLUME_RL_CONCAT || 2452 level == G_RAID_VOLUME_RL_SINGLE) 2453 vol->v_mediasize = size * numdisks; 2454 else if (level == G_RAID_VOLUME_RL_RAID1) 2455 vol->v_mediasize = size; 2456 else if (level == G_RAID_VOLUME_RL_RAID3 || 2457 level == G_RAID_VOLUME_RL_RAID4 || 2458 level == G_RAID_VOLUME_RL_RAID5) 2459 vol->v_mediasize = size * (numdisks - 1); 2460 else if (level == G_RAID_VOLUME_RL_RAID5R) { 2461 vol->v_mediasize = size * (numdisks - 1); 2462 vol->v_rotate_parity = 1024; 2463 } else if (level == G_RAID_VOLUME_RL_RAID6 || 2464 level == G_RAID_VOLUME_RL_RAID5E || 2465 level == G_RAID_VOLUME_RL_RAID5EE) 2466 vol->v_mediasize = size * (numdisks - 2); 2467 else if (level == G_RAID_VOLUME_RL_RAIDMDF) { 2468 if (numdisks < 5) 2469 vol->v_mdf_pdisks = 2; 2470 else 2471 vol->v_mdf_pdisks = 3; 2472 vol->v_mdf_polynomial = 0x11d; 2473 vol->v_mdf_method = 0x00; 2474 vol->v_mediasize = size * (numdisks - vol->v_mdf_pdisks); 2475 } else { /* RAID1E */ 2476 vol->v_mediasize = ((size * numdisks) / strip / 2) * 2477 strip; 2478 } 2479 vol->v_sectorsize = sectorsize; 2480 g_raid_start_volume(vol); 2481 2482 /* , and subdisks. */ 2483 for (i = 0; i < numdisks; i++) { 2484 disk = disks[i]; 2485 sd = &vol->v_subdisks[i]; 2486 sd->sd_disk = disk; 2487 sd->sd_offset = offs[i]; 2488 sd->sd_size = size; 2489 if (disk == NULL) 2490 continue; 2491 TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next); 2492 g_raid_change_disk_state(disk, 2493 G_RAID_DISK_S_ACTIVE); 2494 g_raid_change_subdisk_state(sd, 2495 G_RAID_SUBDISK_S_ACTIVE); 2496 g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW, 2497 G_RAID_EVENT_SUBDISK); 2498 } 2499 2500 /* Write metadata based on created entities. */ 2501 G_RAID_DEBUG1(0, sc, "Array started."); 2502 g_raid_md_write_ddf(md, vol, NULL, NULL); 2503 2504 /* Pickup any STALE/SPARE disks to refill array if needed. */ 2505 g_raid_md_ddf_refill(sc); 2506 2507 g_raid_event_send(vol, G_RAID_VOLUME_E_START, 2508 G_RAID_EVENT_VOLUME); 2509 return (0); 2510 } 2511 if (strcmp(verb, "add") == 0) { 2512 2513 gctl_error(req, "`add` command is not applicable, " 2514 "use `label` instead."); 2515 return (-99); 2516 } 2517 if (strcmp(verb, "delete") == 0) { 2518 2519 nodename = gctl_get_asciiparam(req, "arg0"); 2520 if (nodename != NULL && strcasecmp(sc->sc_name, nodename) != 0) 2521 nodename = NULL; 2522 2523 /* Full node destruction. */ 2524 if (*nargs == 1 && nodename != NULL) { 2525 /* Check if some volume is still open. */ 2526 force = gctl_get_paraml(req, "force", sizeof(*force)); 2527 if (force != NULL && *force == 0 && 2528 g_raid_nopens(sc) != 0) { 2529 gctl_error(req, "Some volume is still open."); 2530 return (-4); 2531 } 2532 2533 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2534 if (disk->d_consumer) 2535 ddf_meta_erase(disk->d_consumer); 2536 } 2537 g_raid_destroy_node(sc, 0); 2538 return (0); 2539 } 2540 2541 /* Destroy specified volume. If it was last - all node. */ 2542 if (*nargs > 2) { 2543 gctl_error(req, "Invalid number of arguments."); 2544 return (-1); 2545 } 2546 volname = gctl_get_asciiparam(req, 2547 nodename != NULL ? "arg1" : "arg0"); 2548 if (volname == NULL) { 2549 gctl_error(req, "No volume name."); 2550 return (-2); 2551 } 2552 2553 /* Search for volume. */ 2554 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 2555 if (strcmp(vol->v_name, volname) == 0) 2556 break; 2557 pp = vol->v_provider; 2558 if (pp == NULL) 2559 continue; 2560 if (strcmp(pp->name, volname) == 0) 2561 break; 2562 if (strncmp(pp->name, "raid/", 5) == 0 && 2563 strcmp(pp->name + 5, volname) == 0) 2564 break; 2565 } 2566 if (vol == NULL) { 2567 i = strtol(volname, &tmp, 10); 2568 if (verb != volname && tmp[0] == 0) { 2569 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 2570 if (vol->v_global_id == i) 2571 break; 2572 } 2573 } 2574 } 2575 if (vol == NULL) { 2576 gctl_error(req, "Volume '%s' not found.", volname); 2577 return (-3); 2578 } 2579 2580 /* Check if volume is still open. */ 2581 force = gctl_get_paraml(req, "force", sizeof(*force)); 2582 if (force != NULL && *force == 0 && 2583 vol->v_provider_open != 0) { 2584 gctl_error(req, "Volume is still open."); 2585 return (-4); 2586 } 2587 2588 /* Destroy volume and potentially node. */ 2589 i = 0; 2590 TAILQ_FOREACH(vol1, &sc->sc_volumes, v_next) 2591 i++; 2592 if (i >= 2) { 2593 g_raid_destroy_volume(vol); 2594 g_raid_md_ddf_purge_disks(sc); 2595 g_raid_md_write_ddf(md, NULL, NULL, NULL); 2596 } else { 2597 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2598 if (disk->d_consumer) 2599 ddf_meta_erase(disk->d_consumer); 2600 } 2601 g_raid_destroy_node(sc, 0); 2602 } 2603 return (0); 2604 } 2605 if (strcmp(verb, "remove") == 0 || 2606 strcmp(verb, "fail") == 0) { 2607 if (*nargs < 2) { 2608 gctl_error(req, "Invalid number of arguments."); 2609 return (-1); 2610 } 2611 for (i = 1; i < *nargs; i++) { 2612 snprintf(arg, sizeof(arg), "arg%d", i); 2613 diskname = gctl_get_asciiparam(req, arg); 2614 if (diskname == NULL) { 2615 gctl_error(req, "No disk name (%s).", arg); 2616 error = -2; 2617 break; 2618 } 2619 if (strncmp(diskname, "/dev/", 5) == 0) 2620 diskname += 5; 2621 2622 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2623 if (disk->d_consumer != NULL && 2624 disk->d_consumer->provider != NULL && 2625 strcmp(disk->d_consumer->provider->name, 2626 diskname) == 0) 2627 break; 2628 } 2629 if (disk == NULL) { 2630 gctl_error(req, "Disk '%s' not found.", 2631 diskname); 2632 error = -3; 2633 break; 2634 } 2635 2636 if (strcmp(verb, "fail") == 0) { 2637 g_raid_md_fail_disk_ddf(md, NULL, disk); 2638 continue; 2639 } 2640 2641 /* Erase metadata on deleting disk and destroy it. */ 2642 ddf_meta_erase(disk->d_consumer); 2643 g_raid_destroy_disk(disk); 2644 } 2645 g_raid_md_ddf_purge_volumes(sc); 2646 2647 /* Write updated metadata to remaining disks. */ 2648 g_raid_md_write_ddf(md, NULL, NULL, NULL); 2649 2650 /* Check if anything left. */ 2651 if (g_raid_ndisks(sc, -1) == 0) 2652 g_raid_destroy_node(sc, 0); 2653 else 2654 g_raid_md_ddf_refill(sc); 2655 return (error); 2656 } 2657 if (strcmp(verb, "insert") == 0) { 2658 if (*nargs < 2) { 2659 gctl_error(req, "Invalid number of arguments."); 2660 return (-1); 2661 } 2662 for (i = 1; i < *nargs; i++) { 2663 /* Get disk name. */ 2664 snprintf(arg, sizeof(arg), "arg%d", i); 2665 diskname = gctl_get_asciiparam(req, arg); 2666 if (diskname == NULL) { 2667 gctl_error(req, "No disk name (%s).", arg); 2668 error = -3; 2669 break; 2670 } 2671 2672 /* Try to find provider with specified name. */ 2673 g_topology_lock(); 2674 cp = g_raid_open_consumer(sc, diskname); 2675 if (cp == NULL) { 2676 gctl_error(req, "Can't open disk '%s'.", 2677 diskname); 2678 g_topology_unlock(); 2679 error = -4; 2680 break; 2681 } 2682 pp = cp->provider; 2683 g_topology_unlock(); 2684 2685 pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO); 2686 2687 disk = g_raid_create_disk(sc); 2688 disk->d_consumer = cp; 2689 disk->d_md_data = (void *)pd; 2690 cp->private = disk; 2691 2692 g_raid_get_disk_info(disk); 2693 2694 /* Welcome the "new" disk. */ 2695 g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE); 2696 ddf_meta_create(disk, &mdi->mdio_meta); 2697 sa = ddf_meta_find_sa(&pd->pd_meta, 1); 2698 if (sa != NULL) { 2699 SET32D(&pd->pd_meta, sa->Signature, 2700 DDF_SA_SIGNATURE); 2701 SET8D(&pd->pd_meta, sa->Spare_Type, 0); 2702 SET16D(&pd->pd_meta, sa->Populated_SAEs, 0); 2703 SET16D(&pd->pd_meta, sa->MAX_SAE_Supported, 2704 (GET16(&pd->pd_meta, hdr->Configuration_Record_Length) * 2705 pd->pd_meta.sectorsize - 2706 sizeof(struct ddf_sa_record)) / 2707 sizeof(struct ddf_sa_entry)); 2708 } 2709 if (mdi->mdio_meta.hdr == NULL) 2710 ddf_meta_copy(&mdi->mdio_meta, &pd->pd_meta); 2711 else 2712 ddf_meta_update(&mdi->mdio_meta, &pd->pd_meta); 2713 g_raid_md_write_ddf(md, NULL, NULL, NULL); 2714 g_raid_md_ddf_refill(sc); 2715 } 2716 return (error); 2717 } 2718 return (-100); 2719 } 2720 2721 static int 2722 g_raid_md_write_ddf(struct g_raid_md_object *md, struct g_raid_volume *tvol, 2723 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 2724 { 2725 struct g_raid_softc *sc; 2726 struct g_raid_volume *vol; 2727 struct g_raid_subdisk *sd; 2728 struct g_raid_disk *disk; 2729 struct g_raid_md_ddf_perdisk *pd; 2730 struct g_raid_md_ddf_pervolume *pv; 2731 struct g_raid_md_ddf_object *mdi; 2732 struct ddf_meta *gmeta; 2733 struct ddf_vol_meta *vmeta; 2734 struct ddf_vdc_record *vdc; 2735 struct ddf_sa_record *sa; 2736 uint64_t *val2; 2737 int i, j, pos, bvd, size; 2738 2739 sc = md->mdo_softc; 2740 mdi = (struct g_raid_md_ddf_object *)md; 2741 gmeta = &mdi->mdio_meta; 2742 2743 if (sc->sc_stopping == G_RAID_DESTROY_HARD) 2744 return (0); 2745 2746 /* 2747 * Clear disk flags to let only really needed ones to be reset. 2748 * Do it only if there are no volumes in starting state now, 2749 * as they can update disk statuses yet and we may kill innocent. 2750 */ 2751 if (mdi->mdio_starting == 0) { 2752 for (i = 0; i < GET16(gmeta, pdr->Populated_PDEs); i++) { 2753 if (isff(gmeta->pdr->entry[i].PD_GUID, 24)) 2754 continue; 2755 SET16(gmeta, pdr->entry[i].PD_Type, 2756 GET16(gmeta, pdr->entry[i].PD_Type) & 2757 ~(DDF_PDE_PARTICIPATING | 2758 DDF_PDE_GLOBAL_SPARE | DDF_PDE_CONFIG_SPARE)); 2759 if ((GET16(gmeta, pdr->entry[i].PD_State) & 2760 DDF_PDE_PFA) == 0) 2761 SET16(gmeta, pdr->entry[i].PD_State, 0); 2762 } 2763 } 2764 2765 /* Generate/update new per-volume metadata. */ 2766 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 2767 pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data; 2768 if (vol->v_stopping || !pv->pv_started) 2769 continue; 2770 vmeta = &pv->pv_meta; 2771 2772 SET32(vmeta, vdc->Sequence_Number, 2773 GET32(vmeta, vdc->Sequence_Number) + 1); 2774 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E && 2775 vol->v_disks_count % 2 == 0) 2776 SET16(vmeta, vdc->Primary_Element_Count, 2); 2777 else 2778 SET16(vmeta, vdc->Primary_Element_Count, 2779 vol->v_disks_count); 2780 SET8(vmeta, vdc->Stripe_Size, 2781 ffs(vol->v_strip_size / vol->v_sectorsize) - 1); 2782 if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E && 2783 vol->v_disks_count % 2 == 0) { 2784 SET8(vmeta, vdc->Primary_RAID_Level, 2785 DDF_VDCR_RAID1); 2786 SET8(vmeta, vdc->RLQ, 0); 2787 SET8(vmeta, vdc->Secondary_Element_Count, 2788 vol->v_disks_count / 2); 2789 SET8(vmeta, vdc->Secondary_RAID_Level, 0); 2790 } else { 2791 SET8(vmeta, vdc->Primary_RAID_Level, 2792 vol->v_raid_level); 2793 SET8(vmeta, vdc->RLQ, 2794 vol->v_raid_level_qualifier); 2795 SET8(vmeta, vdc->Secondary_Element_Count, 1); 2796 SET8(vmeta, vdc->Secondary_RAID_Level, 0); 2797 } 2798 SET8(vmeta, vdc->Secondary_Element_Seq, 0); 2799 SET64(vmeta, vdc->Block_Count, 0); 2800 SET64(vmeta, vdc->VD_Size, vol->v_mediasize / vol->v_sectorsize); 2801 SET16(vmeta, vdc->Block_Size, vol->v_sectorsize); 2802 SET8(vmeta, vdc->Rotate_Parity_count, 2803 fls(vol->v_rotate_parity) - 1); 2804 SET8(vmeta, vdc->MDF_Parity_Disks, vol->v_mdf_pdisks); 2805 SET16(vmeta, vdc->MDF_Parity_Generator_Polynomial, 2806 vol->v_mdf_polynomial); 2807 SET8(vmeta, vdc->MDF_Constant_Generation_Method, 2808 vol->v_mdf_method); 2809 2810 SET16(vmeta, vde->VD_Number, vol->v_global_id); 2811 if (vol->v_state <= G_RAID_VOLUME_S_BROKEN) 2812 SET8(vmeta, vde->VD_State, DDF_VDE_FAILED); 2813 else if (vol->v_state <= G_RAID_VOLUME_S_DEGRADED) 2814 SET8(vmeta, vde->VD_State, DDF_VDE_DEGRADED); 2815 else if (vol->v_state <= G_RAID_VOLUME_S_SUBOPTIMAL) 2816 SET8(vmeta, vde->VD_State, DDF_VDE_PARTIAL); 2817 else 2818 SET8(vmeta, vde->VD_State, DDF_VDE_OPTIMAL); 2819 if (vol->v_dirty || 2820 g_raid_nsubdisks(vol, G_RAID_SUBDISK_S_STALE) > 0 || 2821 g_raid_nsubdisks(vol, G_RAID_SUBDISK_S_RESYNC) > 0) 2822 SET8(vmeta, vde->VD_State, 2823 GET8(vmeta, vde->VD_State) | DDF_VDE_DIRTY); 2824 SET8(vmeta, vde->Init_State, DDF_VDE_INIT_FULL); // XXX 2825 ddf_meta_put_name(vmeta, vol->v_name); 2826 2827 for (i = 0; i < vol->v_disks_count; i++) { 2828 sd = &vol->v_subdisks[i]; 2829 bvd = i / GET16(vmeta, vdc->Primary_Element_Count); 2830 pos = i % GET16(vmeta, vdc->Primary_Element_Count); 2831 disk = sd->sd_disk; 2832 if (disk != NULL) { 2833 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 2834 if (vmeta->bvdc[bvd] == NULL) { 2835 size = GET16(vmeta, 2836 hdr->Configuration_Record_Length) * 2837 vmeta->sectorsize; 2838 vmeta->bvdc[bvd] = malloc(size, 2839 M_MD_DDF, M_WAITOK); 2840 memset(vmeta->bvdc[bvd], 0xff, size); 2841 } 2842 memcpy(vmeta->bvdc[bvd], vmeta->vdc, 2843 sizeof(struct ddf_vdc_record)); 2844 SET8(vmeta, bvdc[bvd]->Secondary_Element_Seq, bvd); 2845 SET64(vmeta, bvdc[bvd]->Block_Count, 2846 sd->sd_size / vol->v_sectorsize); 2847 SET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos], 2848 GET32(&pd->pd_meta, pdd->PD_Reference)); 2849 val2 = (uint64_t *)&(vmeta->bvdc[bvd]->Physical_Disk_Sequence[ 2850 GET16(vmeta, hdr->Max_Primary_Element_Entries)]); 2851 SET64P(vmeta, val2 + pos, 2852 sd->sd_offset / vol->v_sectorsize); 2853 } 2854 if (vmeta->bvdc[bvd] == NULL) 2855 continue; 2856 2857 j = ddf_meta_find_pd(gmeta, NULL, 2858 GET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos])); 2859 if (j < 0) 2860 continue; 2861 SET16(gmeta, pdr->entry[j].PD_Type, 2862 GET16(gmeta, pdr->entry[j].PD_Type) | 2863 DDF_PDE_PARTICIPATING); 2864 if (sd->sd_state == G_RAID_SUBDISK_S_NONE) 2865 SET16(gmeta, pdr->entry[j].PD_State, 2866 GET16(gmeta, pdr->entry[j].PD_State) | 2867 (DDF_PDE_FAILED | DDF_PDE_MISSING)); 2868 else if (sd->sd_state == G_RAID_SUBDISK_S_FAILED) 2869 SET16(gmeta, pdr->entry[j].PD_State, 2870 GET16(gmeta, pdr->entry[j].PD_State) | 2871 (DDF_PDE_FAILED | DDF_PDE_PFA)); 2872 else if (sd->sd_state <= G_RAID_SUBDISK_S_REBUILD) 2873 SET16(gmeta, pdr->entry[j].PD_State, 2874 GET16(gmeta, pdr->entry[j].PD_State) | 2875 DDF_PDE_REBUILD); 2876 else 2877 SET16(gmeta, pdr->entry[j].PD_State, 2878 GET16(gmeta, pdr->entry[j].PD_State) | 2879 DDF_PDE_ONLINE); 2880 } 2881 } 2882 2883 /* Mark spare and failed disks as such. */ 2884 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2885 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 2886 i = ddf_meta_find_pd(gmeta, NULL, 2887 GET32(&pd->pd_meta, pdd->PD_Reference)); 2888 if (i < 0) 2889 continue; 2890 if (disk->d_state == G_RAID_DISK_S_FAILED) { 2891 SET16(gmeta, pdr->entry[i].PD_State, 2892 GET16(gmeta, pdr->entry[i].PD_State) | 2893 (DDF_PDE_FAILED | DDF_PDE_PFA)); 2894 } 2895 if (disk->d_state != G_RAID_DISK_S_SPARE) 2896 continue; 2897 sa = ddf_meta_find_sa(&pd->pd_meta, 0); 2898 if (sa == NULL || 2899 (GET8D(&pd->pd_meta, sa->Spare_Type) & 2900 DDF_SAR_TYPE_DEDICATED) == 0) { 2901 SET16(gmeta, pdr->entry[i].PD_Type, 2902 GET16(gmeta, pdr->entry[i].PD_Type) | 2903 DDF_PDE_GLOBAL_SPARE); 2904 } else { 2905 SET16(gmeta, pdr->entry[i].PD_Type, 2906 GET16(gmeta, pdr->entry[i].PD_Type) | 2907 DDF_PDE_CONFIG_SPARE); 2908 } 2909 SET16(gmeta, pdr->entry[i].PD_State, 2910 GET16(gmeta, pdr->entry[i].PD_State) | 2911 DDF_PDE_ONLINE); 2912 } 2913 2914 /* Remove disks without "participating" flag (unused). */ 2915 for (i = 0, j = -1; i < GET16(gmeta, pdr->Populated_PDEs); i++) { 2916 if (isff(gmeta->pdr->entry[i].PD_GUID, 24)) 2917 continue; 2918 if ((GET16(gmeta, pdr->entry[i].PD_Type) & 2919 (DDF_PDE_PARTICIPATING | 2920 DDF_PDE_GLOBAL_SPARE | DDF_PDE_CONFIG_SPARE)) != 0 || 2921 g_raid_md_ddf_get_disk(sc, 2922 NULL, GET32(gmeta, pdr->entry[i].PD_Reference)) != NULL) 2923 j = i; 2924 else 2925 memset(&gmeta->pdr->entry[i], 0xff, 2926 sizeof(struct ddf_pd_entry)); 2927 } 2928 SET16(gmeta, pdr->Populated_PDEs, j + 1); 2929 2930 /* Update per-disk metadata and write them. */ 2931 TAILQ_FOREACH(disk, &sc->sc_disks, d_next) { 2932 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 2933 if (disk->d_state != G_RAID_DISK_S_ACTIVE && 2934 disk->d_state != G_RAID_DISK_S_SPARE) 2935 continue; 2936 /* Update PDR. */ 2937 memcpy(pd->pd_meta.pdr, gmeta->pdr, 2938 GET32(&pd->pd_meta, hdr->pdr_length) * 2939 pd->pd_meta.sectorsize); 2940 /* Update VDR. */ 2941 SET16(&pd->pd_meta, vdr->Populated_VDEs, 0); 2942 TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) { 2943 if (vol->v_stopping) 2944 continue; 2945 pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data; 2946 i = ddf_meta_find_vd(&pd->pd_meta, 2947 pv->pv_meta.vde->VD_GUID); 2948 if (i < 0) 2949 i = ddf_meta_find_vd(&pd->pd_meta, NULL); 2950 if (i >= 0) 2951 memcpy(&pd->pd_meta.vdr->entry[i], 2952 pv->pv_meta.vde, 2953 sizeof(struct ddf_vd_entry)); 2954 } 2955 /* Update VDC. */ 2956 if (mdi->mdio_starting == 0) { 2957 /* Remove all VDCs to restore needed later. */ 2958 j = GETCRNUM(&pd->pd_meta); 2959 for (i = 0; i < j; i++) { 2960 vdc = GETVDCPTR(&pd->pd_meta, i); 2961 if (GET32D(&pd->pd_meta, vdc->Signature) != 2962 DDF_VDCR_SIGNATURE) 2963 continue; 2964 SET32D(&pd->pd_meta, vdc->Signature, 0xffffffff); 2965 } 2966 } 2967 TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) { 2968 vol = sd->sd_volume; 2969 if (vol->v_stopping) 2970 continue; 2971 pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data; 2972 vmeta = &pv->pv_meta; 2973 vdc = ddf_meta_find_vdc(&pd->pd_meta, 2974 vmeta->vde->VD_GUID); 2975 if (vdc == NULL) 2976 vdc = ddf_meta_find_vdc(&pd->pd_meta, NULL); 2977 if (vdc != NULL) { 2978 bvd = sd->sd_pos / GET16(vmeta, 2979 vdc->Primary_Element_Count); 2980 memcpy(vdc, vmeta->bvdc[bvd], 2981 GET16(&pd->pd_meta, 2982 hdr->Configuration_Record_Length) * 2983 pd->pd_meta.sectorsize); 2984 } 2985 } 2986 G_RAID_DEBUG(1, "Writing DDF metadata to %s", 2987 g_raid_get_diskname(disk)); 2988 g_raid_md_ddf_print(&pd->pd_meta); 2989 ddf_meta_write(disk->d_consumer, &pd->pd_meta); 2990 } 2991 return (0); 2992 } 2993 2994 static int 2995 g_raid_md_fail_disk_ddf(struct g_raid_md_object *md, 2996 struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk) 2997 { 2998 struct g_raid_softc *sc; 2999 struct g_raid_md_ddf_perdisk *pd; 3000 struct g_raid_subdisk *sd; 3001 int i; 3002 3003 sc = md->mdo_softc; 3004 pd = (struct g_raid_md_ddf_perdisk *)tdisk->d_md_data; 3005 3006 /* We can't fail disk that is not a part of array now. */ 3007 if (tdisk->d_state != G_RAID_DISK_S_ACTIVE) 3008 return (-1); 3009 3010 /* 3011 * Mark disk as failed in metadata and try to write that metadata 3012 * to the disk itself to prevent it's later resurrection as STALE. 3013 */ 3014 G_RAID_DEBUG(1, "Writing DDF metadata to %s", 3015 g_raid_get_diskname(tdisk)); 3016 i = ddf_meta_find_pd(&pd->pd_meta, NULL, GET32(&pd->pd_meta, pdd->PD_Reference)); 3017 SET16(&pd->pd_meta, pdr->entry[i].PD_State, DDF_PDE_FAILED | DDF_PDE_PFA); 3018 if (tdisk->d_consumer != NULL) 3019 ddf_meta_write(tdisk->d_consumer, &pd->pd_meta); 3020 3021 /* Change states. */ 3022 g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED); 3023 TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) { 3024 g_raid_change_subdisk_state(sd, 3025 G_RAID_SUBDISK_S_FAILED); 3026 g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED, 3027 G_RAID_EVENT_SUBDISK); 3028 } 3029 3030 /* Write updated metadata to remaining disks. */ 3031 g_raid_md_write_ddf(md, NULL, NULL, tdisk); 3032 3033 g_raid_md_ddf_refill(sc); 3034 return (0); 3035 } 3036 3037 static int 3038 g_raid_md_free_disk_ddf(struct g_raid_md_object *md, 3039 struct g_raid_disk *disk) 3040 { 3041 struct g_raid_md_ddf_perdisk *pd; 3042 3043 pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data; 3044 ddf_meta_free(&pd->pd_meta); 3045 free(pd, M_MD_DDF); 3046 disk->d_md_data = NULL; 3047 return (0); 3048 } 3049 3050 static int 3051 g_raid_md_free_volume_ddf(struct g_raid_md_object *md, 3052 struct g_raid_volume *vol) 3053 { 3054 struct g_raid_md_ddf_object *mdi; 3055 struct g_raid_md_ddf_pervolume *pv; 3056 3057 mdi = (struct g_raid_md_ddf_object *)md; 3058 pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data; 3059 ddf_vol_meta_free(&pv->pv_meta); 3060 if (!pv->pv_started) { 3061 pv->pv_started = 1; 3062 mdi->mdio_starting--; 3063 callout_stop(&pv->pv_start_co); 3064 } 3065 free(pv, M_MD_DDF); 3066 vol->v_md_data = NULL; 3067 return (0); 3068 } 3069 3070 static int 3071 g_raid_md_free_ddf(struct g_raid_md_object *md) 3072 { 3073 struct g_raid_md_ddf_object *mdi; 3074 3075 mdi = (struct g_raid_md_ddf_object *)md; 3076 if (!mdi->mdio_started) { 3077 mdi->mdio_started = 0; 3078 callout_stop(&mdi->mdio_start_co); 3079 G_RAID_DEBUG1(1, md->mdo_softc, 3080 "root_mount_rel %p", mdi->mdio_rootmount); 3081 root_mount_rel(mdi->mdio_rootmount); 3082 mdi->mdio_rootmount = NULL; 3083 } 3084 ddf_meta_free(&mdi->mdio_meta); 3085 return (0); 3086 } 3087 3088 G_RAID_MD_DECLARE(ddf, "DDF"); 3089