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