1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2000 Michael Smith 5 * Copyright (c) 2003 Paul Saab 6 * Copyright (c) 2003 Vinod Kashyap 7 * Copyright (c) 2000 BSDi 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34/* 35 * Register names, bit definitions, structure names and members are 36 * identical with those in the Linux driver where possible and sane 37 * for simplicity's sake. (The TW_ prefix has become TWE_) 38 * Some defines that are clearly irrelevant to FreeBSD have been 39 * removed. 40 */ 41 42/* control register bit definitions */ 43#define TWE_CONTROL_CLEAR_HOST_INTERRUPT 0x00080000 44#define TWE_CONTROL_CLEAR_ATTENTION_INTERRUPT 0x00040000 45#define TWE_CONTROL_MASK_COMMAND_INTERRUPT 0x00020000 46#define TWE_CONTROL_MASK_RESPONSE_INTERRUPT 0x00010000 47#define TWE_CONTROL_UNMASK_COMMAND_INTERRUPT 0x00008000 48#define TWE_CONTROL_UNMASK_RESPONSE_INTERRUPT 0x00004000 49#define TWE_CONTROL_CLEAR_ERROR_STATUS 0x00000200 50#define TWE_CONTROL_ISSUE_SOFT_RESET 0x00000100 51#define TWE_CONTROL_ENABLE_INTERRUPTS 0x00000080 52#define TWE_CONTROL_DISABLE_INTERRUPTS 0x00000040 53#define TWE_CONTROL_ISSUE_HOST_INTERRUPT 0x00000020 54#define TWE_CONTROL_CLEAR_PARITY_ERROR 0x00800000 55#define TWE_CONTROL_CLEAR_PCI_ABORT 0x00100000 56 57#define TWE_SOFT_RESET(sc) TWE_CONTROL(sc, TWE_CONTROL_ISSUE_SOFT_RESET | \ 58 TWE_CONTROL_CLEAR_HOST_INTERRUPT | \ 59 TWE_CONTROL_CLEAR_ATTENTION_INTERRUPT | \ 60 TWE_CONTROL_MASK_COMMAND_INTERRUPT | \ 61 TWE_CONTROL_MASK_RESPONSE_INTERRUPT | \ 62 TWE_CONTROL_CLEAR_ERROR_STATUS | \ 63 TWE_CONTROL_DISABLE_INTERRUPTS) 64 65/* status register bit definitions */ 66#define TWE_STATUS_MAJOR_VERSION_MASK 0xF0000000 67#define TWE_STATUS_MINOR_VERSION_MASK 0x0F000000 68#define TWE_STATUS_PCI_PARITY_ERROR 0x00800000 69#define TWE_STATUS_QUEUE_ERROR 0x00400000 70#define TWE_STATUS_MICROCONTROLLER_ERROR 0x00200000 71#define TWE_STATUS_PCI_ABORT 0x00100000 72#define TWE_STATUS_HOST_INTERRUPT 0x00080000 73#define TWE_STATUS_ATTENTION_INTERRUPT 0x00040000 74#define TWE_STATUS_COMMAND_INTERRUPT 0x00020000 75#define TWE_STATUS_RESPONSE_INTERRUPT 0x00010000 76#define TWE_STATUS_COMMAND_QUEUE_FULL 0x00008000 77#define TWE_STATUS_RESPONSE_QUEUE_EMPTY 0x00004000 78#define TWE_STATUS_MICROCONTROLLER_READY 0x00002000 79#define TWE_STATUS_COMMAND_QUEUE_EMPTY 0x00001000 80#define TWE_STATUS_ALL_INTERRUPTS 0x000F0000 81#define TWE_STATUS_CLEARABLE_BITS 0x00D00000 82#define TWE_STATUS_EXPECTED_BITS 0x00002000 83#define TWE_STATUS_UNEXPECTED_BITS 0x00F80000 84 85/* XXX this is a little harsh, but necessary to chase down firmware problems */ 86#define TWE_STATUS_PANIC_BITS (TWE_STATUS_MICROCONTROLLER_ERROR) 87 88/* for use with the %b printf format */ 89#define TWE_STATUS_BITS_DESCRIPTION \ 90 "\20\15CQEMPTY\16UCREADY\17RQEMPTY\20CQFULL\21RINTR\22CINTR\23AINTR\24HINTR\25PCIABRT\26MCERR\27QERR\30PCIPERR\n" 91 92/* detect inconsistencies in the status register */ 93#define TWE_STATUS_ERRORS(x) \ 94 (((x & TWE_STATUS_PCI_ABORT) || \ 95 (x & TWE_STATUS_PCI_PARITY_ERROR) || \ 96 (x & TWE_STATUS_QUEUE_ERROR) || \ 97 (x & TWE_STATUS_MICROCONTROLLER_ERROR)) && \ 98 (x & TWE_STATUS_MICROCONTROLLER_READY)) 99 100/* Response queue bit definitions */ 101#define TWE_RESPONSE_ID_MASK 0x00000FF0 102 103/* PCI related defines */ 104#define TWE_IO_CONFIG_REG 0x10 105#define TWE_DEVICE_NAME "3ware Storage Controller" 106#define TWE_VENDOR_ID 0x13C1 107#define TWE_DEVICE_ID 0x1000 108#define TWE_DEVICE_ID_ASIC 0x1001 109#define TWE_PCI_CLEAR_PARITY_ERROR 0xc100 110#define TWE_PCI_CLEAR_PCI_ABORT 0x2000 111 112/* command packet opcodes */ 113#define TWE_OP_NOP 0x00 114#define TWE_OP_INIT_CONNECTION 0x01 115#define TWE_OP_READ 0x02 116#define TWE_OP_WRITE 0x03 117#define TWE_OP_READVERIFY 0x04 118#define TWE_OP_VERIFY 0x05 119#define TWE_OP_ZEROUNIT 0x08 120#define TWE_OP_REPLACEUNIT 0x09 121#define TWE_OP_HOTSWAP 0x0a 122#define TWE_OP_SETATAFEATURE 0x0c 123#define TWE_OP_FLUSH 0x0e 124#define TWE_OP_ABORT 0x0f 125#define TWE_OP_CHECKSTATUS 0x10 126#define TWE_OP_ATA_PASSTHROUGH 0x11 127#define TWE_OP_GET_PARAM 0x12 128#define TWE_OP_SET_PARAM 0x13 129#define TWE_OP_CREATEUNIT 0x14 130#define TWE_OP_DELETEUNIT 0x15 131#define TWE_OP_REBUILDUNIT 0x17 132#define TWE_OP_SECTOR_INFO 0x1a 133#define TWE_OP_AEN_LISTEN 0x1c 134#define TWE_OP_CMD_PACKET 0x1d 135#define TWE_OP_CMD_WITH_DATA 0x1f 136 137/* command status values */ 138#define TWE_STATUS_RESET 0xff /* controller requests reset */ 139#define TWE_STATUS_FATAL 0xc0 /* fatal errors not requiring reset */ 140#define TWE_STATUS_WARNING 0x80 /* warnings */ 141#define TWE_STAUS_INFO 0x40 /* informative status */ 142 143/* misc defines */ 144#define TWE_ALIGNMENT 0x200 145#define TWE_MAX_UNITS 16 146#define TWE_COMMAND_ALIGNMENT_MASK 0x1ff 147#define TWE_INIT_MESSAGE_CREDITS 0xff /* older firmware has issues with 256 commands */ 148#define TWE_SHUTDOWN_MESSAGE_CREDITS 0x001 149#define TWE_INIT_COMMAND_PACKET_SIZE 0x3 150#define TWE_MAX_SGL_LENGTH 62 151#define TWE_MAX_ATA_SGL_LENGTH 60 152#define TWE_MAX_PASSTHROUGH 4096 153#define TWE_Q_LENGTH TWE_INIT_MESSAGE_CREDITS 154#define TWE_Q_START 0 155#define TWE_MAX_RESET_TRIES 3 156#define TWE_BLOCK_SIZE 0x200 /* 512-byte blocks */ 157#define TWE_SECTOR_SIZE 0x200 /* generic I/O bufffer */ 158#define TWE_IOCTL 0x80 159#define TWE_MAX_AEN_TRIES 100 160#define TWE_UNIT_ONLINE 1 161 162/* scatter/gather list entry */ 163typedef struct 164{ 165 u_int32_t address; 166 u_int32_t length; 167} __packed TWE_SG_Entry; 168 169typedef struct { 170 u_int8_t opcode:5; /* TWE_OP_INITCONNECTION */ 171 u_int8_t res1:3; 172 u_int8_t size; 173 u_int8_t request_id; 174 u_int8_t res2:4; 175 u_int8_t host_id:4; 176 u_int8_t status; 177 u_int8_t flags; 178 u_int16_t message_credits; 179 u_int32_t response_queue_pointer; 180} __packed TWE_Command_INITCONNECTION; 181 182typedef struct 183{ 184 u_int8_t opcode:5; /* TWE_OP_READ/TWE_OP_WRITE */ 185 u_int8_t res1:3; 186 u_int8_t size; 187 u_int8_t request_id; 188 u_int8_t unit:4; 189 u_int8_t host_id:4; 190 u_int8_t status; 191 u_int8_t flags; 192 u_int16_t block_count; 193 u_int32_t lba; 194 TWE_SG_Entry sgl[TWE_MAX_SGL_LENGTH]; 195} __packed TWE_Command_IO; 196 197typedef struct 198{ 199 u_int8_t opcode:5; /* TWE_OP_HOTSWAP */ 200 u_int8_t res1:3; 201 u_int8_t size; 202 u_int8_t request_id; 203 u_int8_t unit:4; 204 u_int8_t host_id:4; 205 u_int8_t status; 206 u_int8_t flags; 207 u_int8_t action; 208#define TWE_OP_HOTSWAP_REMOVE 0x00 /* remove assumed-degraded unit */ 209#define TWE_OP_HOTSWAP_ADD_CBOD 0x01 /* add CBOD to empty port */ 210#define TWE_OP_HOTSWAP_ADD_SPARE 0x02 /* add spare to empty port */ 211 u_int8_t aport; 212} __packed TWE_Command_HOTSWAP; 213 214typedef struct 215{ 216 u_int8_t opcode:5; /* TWE_OP_SETATAFEATURE */ 217 u_int8_t res1:3; 218 u_int8_t size; 219 u_int8_t request_id; 220 u_int8_t unit:4; 221 u_int8_t host_id:4; 222 u_int8_t status; 223 u_int8_t flags; 224 u_int8_t feature; 225#define TWE_OP_SETATAFEATURE_WCE 0x02 226#define TWE_OP_SETATAFEATURE_DIS_WCE 0x82 227 u_int8_t feature_mode; 228 u_int16_t all_units; 229 u_int16_t persistence; 230} __packed TWE_Command_SETATAFEATURE; 231 232typedef struct 233{ 234 u_int8_t opcode:5; /* TWE_OP_CHECKSTATUS */ 235 u_int8_t res1:3; 236 u_int8_t size; 237 u_int8_t request_id; 238 u_int8_t unit:4; 239 u_int8_t res2:4; 240 u_int8_t status; 241 u_int8_t flags; 242 u_int16_t target_status; /* set low byte to target request's ID */ 243} __packed TWE_Command_CHECKSTATUS; 244 245typedef struct 246{ 247 u_int8_t opcode:5; /* TWE_OP_GETPARAM, TWE_OP_SETPARAM */ 248 u_int8_t res1:3; 249 u_int8_t size; 250 u_int8_t request_id; 251 u_int8_t unit:4; 252 u_int8_t host_id:4; 253 u_int8_t status; 254 u_int8_t flags; 255 u_int16_t param_count; 256 TWE_SG_Entry sgl[TWE_MAX_SGL_LENGTH]; 257} __packed TWE_Command_PARAM; 258 259typedef struct 260{ 261 u_int8_t opcode:5; /* TWE_OP_REBUILDUNIT */ 262 u_int8_t res1:3; 263 u_int8_t size; 264 u_int8_t request_id; 265 u_int8_t src_unit:4; 266 u_int8_t host_id:4; 267 u_int8_t status; 268 u_int8_t flags; 269 u_int8_t action:7; 270#define TWE_OP_REBUILDUNIT_NOP 0 271#define TWE_OP_REBUILDUNIT_STOP 2 /* stop all rebuilds */ 272#define TWE_OP_REBUILDUNIT_START 4 /* start rebuild with lowest unit */ 273#define TWE_OP_REBUILDUNIT_STARTUNIT 5 /* rebuild src_unit (not supported) */ 274 u_int8_t cs:1; /* request state change on src_unit */ 275 u_int8_t logical_subunit; /* for RAID10 rebuild of logical subunit */ 276} __packed TWE_Command_REBUILDUNIT; 277 278typedef struct 279{ 280 u_int8_t opcode:5; 281 u_int8_t sgl_offset:3; 282 u_int8_t size; 283 u_int8_t request_id; 284 u_int8_t unit:4; 285 u_int8_t host_id:4; 286 u_int8_t status; 287 u_int8_t flags; 288 u_int16_t param; 289 u_int16_t features; 290 u_int16_t sector_count; 291 u_int16_t sector_num; 292 u_int16_t cylinder_lo; 293 u_int16_t cylinder_hi; 294 u_int8_t drive_head; 295 u_int8_t command; 296 TWE_SG_Entry sgl[TWE_MAX_ATA_SGL_LENGTH]; 297} __packed TWE_Command_ATA; 298 299typedef struct 300{ 301 u_int8_t opcode:5; 302 u_int8_t sgl_offset:3; 303 u_int8_t size; 304 u_int8_t request_id; 305 u_int8_t unit:4; 306 u_int8_t host_id:4; 307 u_int8_t status; 308 u_int8_t flags; 309#define TWE_FLAGS_SUCCESS 0x00 310#define TWE_FLAGS_INFORMATIONAL 0x01 311#define TWE_FLAGS_WARNING 0x02 312#define TWE_FLAGS_FATAL 0x03 313#define TWE_FLAGS_PERCENTAGE (1<<8) /* bits 0-6 indicate completion percentage */ 314 u_int16_t count; /* block count, parameter count, message credits */ 315} __packed TWE_Command_Generic; 316 317/* command packet - must be TWE_ALIGNMENT aligned */ 318typedef union 319{ 320 TWE_Command_INITCONNECTION initconnection; 321 TWE_Command_IO io; 322 TWE_Command_PARAM param; 323 TWE_Command_CHECKSTATUS checkstatus; 324 TWE_Command_REBUILDUNIT rebuildunit; 325 TWE_Command_SETATAFEATURE setatafeature; 326 TWE_Command_ATA ata; 327 TWE_Command_Generic generic; 328 u_int8_t pad[512]; 329} TWE_Command; 330 331/* response queue entry */ 332typedef union 333{ 334 struct 335 { 336 u_int32_t undefined_1:4; 337 u_int32_t response_id:8; 338 u_int32_t undefined_2:20; 339 } u; 340 u_int32_t value; 341} TWE_Response_Queue; 342 343/* 344 * From 3ware's documentation: 345 * All parameters maintained by the controller are grouped into related tables. 346 * Tables are are accessed indirectly via get and set parameter commands. 347 * To access a specific parameter in a table, the table ID and parameter index 348 * are used to uniquely identify a parameter. Table 0xffff is the directory 349 * table and provides a list of the table IDs and sizes of all other tables. 350 * Index zero in each table specifies the entire table, and index one specifies 351 * the size of the table. An entire table can be read or set by using index zero. 352 */ 353 354#define TWE_PARAM_PARAM_ALL 0 355#define TWE_PARAM_PARAM_SIZE 1 356 357#define TWE_PARAM_DIRECTORY 0xffff /* size is 4 * number of tables */ 358#define TWE_PARAM_DIRECTORY_TABLES 2 /* 16 bits * number of tables */ 359#define TWE_PARAM_DIRECTORY_SIZES 3 /* 16 bits * number of tables */ 360 361#define TWE_PARAM_DRIVESUMMARY 0x0002 362#define TWE_PARAM_DRIVESUMMARY_Num 2 /* number of physical drives [2] */ 363#define TWE_PARAM_DRIVESUMMARY_Status 3 /* array giving drive status per aport */ 364#define TWE_PARAM_DRIVESTATUS_Missing 0x00 365#define TWE_PARAM_DRIVESTATUS_NotSupp 0xfe 366#define TWE_PARAM_DRIVESTATUS_Present 0xff 367 368#define TWE_PARAM_UNITSUMMARY 0x0003 369#define TWE_PARAM_UNITSUMMARY_Num 2 /* number of logical units [2] */ 370#define TWE_PARAM_UNITSUMMARY_Status 3 /* array giving unit status [16] */ 371#define TWE_PARAM_UNITSTATUS_Online (1<<0) 372#define TWE_PARAM_UNITSTATUS_Complete (1<<1) 373#define TWE_PARAM_UNITSTATUS_MASK 0xfc 374#define TWE_PARAM_UNITSTATUS_Normal 0xfc 375#define TWE_PARAM_UNITSTATUS_Initialising 0xf4 /* cannot be incomplete */ 376#define TWE_PARAM_UNITSTATUS_Degraded 0xec 377#define TWE_PARAM_UNITSTATUS_Rebuilding 0xdc /* cannot be incomplete */ 378#define TWE_PARAM_UNITSTATUS_Verifying 0xcc /* cannot be incomplete */ 379#define TWE_PARAM_UNITSTATUS_Corrupt 0xbc /* cannot be complete */ 380#define TWE_PARAM_UNITSTATUS_Missing 0x00 /* cannot be complete or online */ 381 382#define TWE_PARAM_DRIVEINFO 0x0200 /* add drive number 0x00-0x0f XXX docco confused 0x0100 vs 0x0200 */ 383#define TWE_PARAM_DRIVEINFO_Size 2 /* size in blocks [4] */ 384#define TWE_PARAM_DRIVEINFO_Model 3 /* drive model string [40] */ 385#define TWE_PARAM_DRIVEINFO_Serial 4 /* drive serial number [20] */ 386#define TWE_PARAM_DRIVEINFO_PhysCylNum 5 /* physical geometry [2] */ 387#define TWE_PARAM_DRIVEINFO_PhysHeadNum 6 /* [2] */ 388#define TWE_PARAM_DRIVEINFO_PhysSectorNym 7 /* [2] */ 389#define TWE_PARAM_DRIVEINFO_LogCylNum 8 /* logical geometry [2] */ 390#define TWE_PARAM_DRIVEINFO_LogHeadNum 9 /* [2] */ 391#define TWE_PARAM_DRIVEINFO_LogSectorNum 10 /* [2] */ 392#define TWE_PARAM_DRIVEINFO_UnitNum 11 /* unit number this drive is associated with or 0xff [1] */ 393#define TWE_PARAM_DRIVEINFO_DriveFlags 12 /* N/A [1] */ 394 395#define TWE_PARAM_APORTTIMEOUT 0x02c0 /* add (aport_number * 3) to parameter index */ 396#define TWE_PARAM_APORTTIMEOUT_READ 2 /* read timeouts last 24hrs [2] */ 397#define TWE_PARAM_APORTTIMEOUT_WRITE 3 /* write timeouts last 24hrs [2] */ 398#define TWE_PARAM_APORTTIMEOUT_DEGRADE 4 /* degrade threshold [2] */ 399 400#define TWE_PARAM_UNITINFO 0x0300 /* add unit number 0x00-0x0f */ 401#define TWE_PARAM_UNITINFO_Number 2 /* unit number [1] */ 402#define TWE_PARAM_UNITINFO_Status 3 /* unit status [1] */ 403#define TWE_PARAM_UNITINFO_Capacity 4 /* unit capacity in blocks [4] */ 404#define TWE_PARAM_UNITINFO_DescriptorSize 5 /* unit descriptor size + 3 bytes [2] */ 405#define TWE_PARAM_UNITINFO_Descriptor 6 /* unit descriptor, TWE_UnitDescriptor or TWE_Array_Descriptor */ 406#define TWE_PARAM_UNITINFO_Flags 7 /* unit flags [1] */ 407#define TWE_PARAM_UNITFLAGS_WCE (1<<0) 408 409#define TWE_PARAM_AEN 0x0401 410#define TWE_PARAM_AEN_UnitCode 2 /* (unit number << 8) | AEN code [2] */ 411#define TWE_AEN_QUEUE_EMPTY 0x00 412#define TWE_AEN_SOFT_RESET 0x01 413#define TWE_AEN_DEGRADED_MIRROR 0x02 /* reports unit */ 414#define TWE_AEN_CONTROLLER_ERROR 0x03 415#define TWE_AEN_REBUILD_FAIL 0x04 /* reports unit */ 416#define TWE_AEN_REBUILD_DONE 0x05 /* reports unit */ 417#define TWE_AEN_INCOMP_UNIT 0x06 /* reports unit */ 418#define TWE_AEN_INIT_DONE 0x07 /* reports unit */ 419#define TWE_AEN_UNCLEAN_SHUTDOWN 0x08 /* reports unit */ 420#define TWE_AEN_APORT_TIMEOUT 0x09 /* reports unit, rate limited to 1 per 2^16 errors */ 421#define TWE_AEN_DRIVE_ERROR 0x0a /* reports unit */ 422#define TWE_AEN_REBUILD_STARTED 0x0b /* reports unit */ 423#define TWE_AEN_QUEUE_FULL 0xff 424#define TWE_AEN_TABLE_UNDEFINED 0x15 425#define TWE_AEN_CODE(x) ((x) & 0xff) 426#define TWE_AEN_UNIT(x) ((x) >> 8) 427 428#define TWE_PARAM_VERSION 0x0402 429#define TWE_PARAM_VERSION_Mon 2 /* monitor version [16] */ 430#define TWE_PARAM_VERSION_FW 3 /* firmware version [16] */ 431#define TWE_PARAM_VERSION_BIOS 4 /* BIOSs version [16] */ 432#define TWE_PARAM_VERSION_PCB 5 /* PCB version [8] */ 433#define TWE_PARAM_VERSION_ATA 6 /* A-chip version [8] */ 434#define TWE_PARAM_VERSION_PCI 7 /* P-chip version [8] */ 435#define TWE_PARAM_VERSION_CtrlModel 8 /* N/A */ 436#define TWE_PARAM_VERSION_CtrlSerial 9 /* N/A */ 437#define TWE_PARAM_VERSION_SBufSize 10 /* N/A */ 438#define TWE_PARAM_VERSION_CompCode 11 /* compatibility code [4] */ 439 440#define TWE_PARAM_CONTROLLER 0x0403 441#define TWE_PARAM_CONTROLLER_DCBSectors 2 /* # sectors reserved for DCB per drive [2] */ 442#define TWE_PARAM_CONTROLLER_PortCount 3 /* number of drive ports [1] */ 443 444#define TWE_PARAM_FEATURES 0x404 445#define TWE_PARAM_FEATURES_DriverShutdown 2 /* set to 1 if driver supports shutdown notification [1] */ 446 447typedef struct 448{ 449 u_int8_t num_subunits; /* must be zero */ 450 u_int8_t configuration; 451#define TWE_UD_CONFIG_CBOD 0x0c /* JBOD with DCB, used for mirrors */ 452#define TWE_UD_CONFIG_SPARE 0x0d /* same as CBOD, but firmware will use as spare */ 453#define TWE_UD_CONFIG_SUBUNIT 0x0e /* drive is a subunit in an array */ 454#define TWE_UD_CONFIG_JBOD 0x0f /* plain drive */ 455 u_int8_t phys_drv_num; /* may be 0xff if port can't be determined at runtime */ 456 u_int8_t log_drv_num; /* must be zero for configuration == 0x0f */ 457 u_int32_t start_lba; 458 u_int32_t block_count; /* actual drive size if configuration == 0x0f, otherwise less DCB size */ 459} __packed TWE_Unit_Descriptor; 460 461typedef struct 462{ 463 u_int8_t flag; /* must be 0xff */ 464 u_int8_t res1; 465 u_int8_t mirunit_status[4]; /* bitmap of functional subunits in each mirror */ 466 u_int8_t res2[6]; 467} __packed TWE_Mirror_Descriptor; 468 469typedef struct 470{ 471 u_int8_t num_subunits; /* number of subunits, or number of mirror units in RAID10 */ 472 u_int8_t configuration; 473#define TWE_UD_CONFIG_RAID0 0x00 474#define TWE_UD_CONFIG_RAID1 0x01 475#define TWE_UD_CONFIG_TwinStor 0x02 476#define TWE_UD_CONFIG_RAID5 0x05 477#define TWE_UD_CONFIG_RAID10 0x06 478 u_int8_t stripe_size; 479#define TWE_UD_STRIPE_4k 0x03 480#define TWE_UD_STRIPE_8k 0x04 481#define TWE_UD_STRIPE_16k 0x05 482#define TWE_UD_STRIPE_32k 0x06 483#define TWE_UD_STRIPE_64k 0x07 484 u_int8_t log_drv_status; /* bitmap of functional subunits, or mirror units in RAID10 */ 485 u_int32_t start_lba; 486 u_int32_t block_count; /* actual drive size if configuration == 0x0f, otherwise less DCB size */ 487 TWE_Unit_Descriptor subunit[0]; /* subunit descriptors, in RAID10 mode is [mirunit][subunit] */ 488} __packed TWE_Array_Descriptor; 489 490typedef struct 491{ 492 u_int16_t table_id; 493 u_int8_t parameter_id; 494 u_int8_t parameter_size_bytes; 495 u_int8_t data[0]; 496} __packed TWE_Param; 497