1 /* 2 3 Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters 4 5 Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com> 6 7 This program is free software; you may redistribute and/or modify it under 8 the terms of the GNU General Public License Version 2 as published by the 9 Free Software Foundation. 10 11 This program is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY 13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for complete details. 15 16 The author respectfully requests that any modifications to this software be 17 sent directly to him for evaluation and testing. 18 19 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose 20 advice has been invaluable, to David Gentzel, for writing the original Linux 21 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site. 22 23 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB 24 Manager available as freely redistributable source code. 25 26 */ 27 28 #ifndef _BUSLOGIC_H 29 #define _BUSLOGIC_H 30 31 32 #ifndef PACKED 33 #define PACKED __attribute__((packed)) 34 #endif 35 36 /* 37 Define the maximum number of BusLogic Host Adapters supported by this driver. 38 */ 39 40 #define BusLogic_MaxHostAdapters 16 41 42 43 /* 44 Define the maximum number of Target Devices supported by this driver. 45 */ 46 47 #define BusLogic_MaxTargetDevices 16 48 49 50 /* 51 Define the maximum number of Scatter/Gather Segments used by this driver. 52 For optimal performance, it is important that this limit be at least as 53 large as the largest single request generated by the I/O Subsystem. 54 */ 55 56 #define BusLogic_ScatterGatherLimit 128 57 58 59 /* 60 Define the maximum, maximum automatic, minimum automatic, and default Queue 61 Depth to allow for Target Devices depending on whether or not they support 62 Tagged Queuing and whether or not ISA Bounce Buffers are required. 63 */ 64 65 #define BusLogic_MaxTaggedQueueDepth 64 66 #define BusLogic_MaxAutomaticTaggedQueueDepth 28 67 #define BusLogic_MinAutomaticTaggedQueueDepth 7 68 #define BusLogic_TaggedQueueDepthBB 3 69 #define BusLogic_UntaggedQueueDepth 3 70 #define BusLogic_UntaggedQueueDepthBB 2 71 72 73 /* 74 Define the default amount of time in seconds to wait between a Host Adapter 75 Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands. 76 Some SCSI devices get confused if they receive SCSI commands too soon after 77 a SCSI Bus Reset. 78 */ 79 80 #define BusLogic_DefaultBusSettleTime 2 81 82 83 /* 84 Define the maximum number of Mailboxes that should be used for MultiMaster 85 Host Adapters. This number is chosen to be larger than the maximum Host 86 Adapter Queue Depth and small enough so that the Host Adapter structure 87 does not cross an allocation block size boundary. 88 */ 89 90 #define BusLogic_MaxMailboxes 211 91 92 93 /* 94 Define the number of CCBs that should be allocated as a group to optimize 95 Kernel memory allocation. 96 */ 97 98 #define BusLogic_CCB_AllocationGroupSize 7 99 100 101 /* 102 Define the Host Adapter Line and Message Buffer Sizes. 103 */ 104 105 #define BusLogic_LineBufferSize 100 106 #define BusLogic_MessageBufferSize 9700 107 108 109 /* 110 Define the Driver Message Levels. 111 */ 112 113 enum BusLogic_MessageLevel { 114 BusLogic_AnnounceLevel = 0, 115 BusLogic_InfoLevel = 1, 116 BusLogic_NoticeLevel = 2, 117 BusLogic_WarningLevel = 3, 118 BusLogic_ErrorLevel = 4 119 }; 120 121 static char *BusLogic_MessageLevelMap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR }; 122 123 124 /* 125 Define Driver Message macros. 126 */ 127 128 #define BusLogic_Announce(Format, Arguments...) \ 129 BusLogic_Message(BusLogic_AnnounceLevel, Format, ##Arguments) 130 131 #define BusLogic_Info(Format, Arguments...) \ 132 BusLogic_Message(BusLogic_InfoLevel, Format, ##Arguments) 133 134 #define BusLogic_Notice(Format, Arguments...) \ 135 BusLogic_Message(BusLogic_NoticeLevel, Format, ##Arguments) 136 137 #define BusLogic_Warning(Format, Arguments...) \ 138 BusLogic_Message(BusLogic_WarningLevel, Format, ##Arguments) 139 140 #define BusLogic_Error(Format, Arguments...) \ 141 BusLogic_Message(BusLogic_ErrorLevel, Format, ##Arguments) 142 143 144 /* 145 Define the types of BusLogic Host Adapters that are supported and the number 146 of I/O Addresses required by each type. 147 */ 148 149 enum BusLogic_HostAdapterType { 150 BusLogic_MultiMaster = 1, 151 BusLogic_FlashPoint = 2 152 } PACKED; 153 154 #define BusLogic_MultiMasterAddressCount 4 155 #define BusLogic_FlashPointAddressCount 256 156 157 static int BusLogic_HostAdapterAddressCount[3] = { 0, BusLogic_MultiMasterAddressCount, BusLogic_FlashPointAddressCount }; 158 159 160 /* 161 Define macros for testing the Host Adapter Type. 162 */ 163 164 #ifdef CONFIG_SCSI_FLASHPOINT 165 166 #define BusLogic_MultiMasterHostAdapterP(HostAdapter) \ 167 (HostAdapter->HostAdapterType == BusLogic_MultiMaster) 168 169 #define BusLogic_FlashPointHostAdapterP(HostAdapter) \ 170 (HostAdapter->HostAdapterType == BusLogic_FlashPoint) 171 172 #else 173 174 #define BusLogic_MultiMasterHostAdapterP(HostAdapter) \ 175 (true) 176 177 #define BusLogic_FlashPointHostAdapterP(HostAdapter) \ 178 (false) 179 180 #endif 181 182 183 /* 184 Define the possible Host Adapter Bus Types. 185 */ 186 187 enum BusLogic_HostAdapterBusType { 188 BusLogic_Unknown_Bus = 0, 189 BusLogic_ISA_Bus = 1, 190 BusLogic_EISA_Bus = 2, 191 BusLogic_PCI_Bus = 3, 192 BusLogic_VESA_Bus = 4, 193 BusLogic_MCA_Bus = 5 194 } PACKED; 195 196 static char *BusLogic_HostAdapterBusNames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" }; 197 198 static enum BusLogic_HostAdapterBusType BusLogic_HostAdapterBusTypes[] = { 199 BusLogic_VESA_Bus, /* BT-4xx */ 200 BusLogic_ISA_Bus, /* BT-5xx */ 201 BusLogic_MCA_Bus, /* BT-6xx */ 202 BusLogic_EISA_Bus, /* BT-7xx */ 203 BusLogic_Unknown_Bus, /* BT-8xx */ 204 BusLogic_PCI_Bus /* BT-9xx */ 205 }; 206 207 /* 208 Define the possible Host Adapter BIOS Disk Geometry Translations. 209 */ 210 211 enum BusLogic_BIOS_DiskGeometryTranslation { 212 BusLogic_BIOS_Disk_Not_Installed = 0, 213 BusLogic_BIOS_Disk_Installed_64x32 = 1, 214 BusLogic_BIOS_Disk_Installed_128x32 = 2, 215 BusLogic_BIOS_Disk_Installed_255x63 = 3 216 } PACKED; 217 218 219 /* 220 Define a 10^18 Statistics Byte Counter data type. 221 */ 222 223 struct BusLogic_ByteCounter { 224 unsigned int Units; 225 unsigned int Billions; 226 }; 227 228 229 /* 230 Define the structure for I/O Address and Bus Probing Information. 231 */ 232 233 struct BusLogic_ProbeInfo { 234 enum BusLogic_HostAdapterType HostAdapterType; 235 enum BusLogic_HostAdapterBusType HostAdapterBusType; 236 unsigned long IO_Address; 237 unsigned long PCI_Address; 238 struct pci_dev *PCI_Device; 239 unsigned char Bus; 240 unsigned char Device; 241 unsigned char IRQ_Channel; 242 }; 243 244 /* 245 Define the Probe Options. 246 */ 247 248 struct BusLogic_ProbeOptions { 249 bool NoProbe:1; /* Bit 0 */ 250 bool NoProbeISA:1; /* Bit 1 */ 251 bool NoProbePCI:1; /* Bit 2 */ 252 bool NoSortPCI:1; /* Bit 3 */ 253 bool MultiMasterFirst:1;/* Bit 4 */ 254 bool FlashPointFirst:1; /* Bit 5 */ 255 bool LimitedProbeISA:1; /* Bit 6 */ 256 bool Probe330:1; /* Bit 7 */ 257 bool Probe334:1; /* Bit 8 */ 258 bool Probe230:1; /* Bit 9 */ 259 bool Probe234:1; /* Bit 10 */ 260 bool Probe130:1; /* Bit 11 */ 261 bool Probe134:1; /* Bit 12 */ 262 }; 263 264 /* 265 Define the Global Options. 266 */ 267 268 struct BusLogic_GlobalOptions { 269 bool TraceProbe:1; /* Bit 0 */ 270 bool TraceHardwareReset:1; /* Bit 1 */ 271 bool TraceConfiguration:1; /* Bit 2 */ 272 bool TraceErrors:1; /* Bit 3 */ 273 }; 274 275 /* 276 Define the Local Options. 277 */ 278 279 struct BusLogic_LocalOptions { 280 bool InhibitTargetInquiry:1; /* Bit 0 */ 281 }; 282 283 /* 284 Define the BusLogic SCSI Host Adapter I/O Register Offsets. 285 */ 286 287 #define BusLogic_ControlRegisterOffset 0 /* WO register */ 288 #define BusLogic_StatusRegisterOffset 0 /* RO register */ 289 #define BusLogic_CommandParameterRegisterOffset 1 /* WO register */ 290 #define BusLogic_DataInRegisterOffset 1 /* RO register */ 291 #define BusLogic_InterruptRegisterOffset 2 /* RO register */ 292 #define BusLogic_GeometryRegisterOffset 3 /* RO register */ 293 294 /* 295 Define the structure of the write-only Control Register. 296 */ 297 298 union BusLogic_ControlRegister { 299 unsigned char All; 300 struct { 301 unsigned char:4; /* Bits 0-3 */ 302 bool SCSIBusReset:1; /* Bit 4 */ 303 bool InterruptReset:1; /* Bit 5 */ 304 bool SoftReset:1; /* Bit 6 */ 305 bool HardReset:1; /* Bit 7 */ 306 } cr; 307 }; 308 309 /* 310 Define the structure of the read-only Status Register. 311 */ 312 313 union BusLogic_StatusRegister { 314 unsigned char All; 315 struct { 316 bool CommandInvalid:1; /* Bit 0 */ 317 bool Reserved:1; /* Bit 1 */ 318 bool DataInRegisterReady:1; /* Bit 2 */ 319 bool CommandParameterRegisterBusy:1; /* Bit 3 */ 320 bool HostAdapterReady:1; /* Bit 4 */ 321 bool InitializationRequired:1; /* Bit 5 */ 322 bool DiagnosticFailure:1; /* Bit 6 */ 323 bool DiagnosticActive:1; /* Bit 7 */ 324 } sr; 325 }; 326 327 /* 328 Define the structure of the read-only Interrupt Register. 329 */ 330 331 union BusLogic_InterruptRegister { 332 unsigned char All; 333 struct { 334 bool IncomingMailboxLoaded:1; /* Bit 0 */ 335 bool OutgoingMailboxAvailable:1;/* Bit 1 */ 336 bool CommandComplete:1; /* Bit 2 */ 337 bool ExternalBusReset:1; /* Bit 3 */ 338 unsigned char Reserved:3; /* Bits 4-6 */ 339 bool InterruptValid:1; /* Bit 7 */ 340 } ir; 341 }; 342 343 /* 344 Define the structure of the read-only Geometry Register. 345 */ 346 347 union BusLogic_GeometryRegister { 348 unsigned char All; 349 struct { 350 enum BusLogic_BIOS_DiskGeometryTranslation Drive0Geometry:2; /* Bits 0-1 */ 351 enum BusLogic_BIOS_DiskGeometryTranslation Drive1Geometry:2; /* Bits 2-3 */ 352 unsigned char:3; /* Bits 4-6 */ 353 bool ExtendedTranslationEnabled:1; /* Bit 7 */ 354 } gr; 355 }; 356 357 /* 358 Define the BusLogic SCSI Host Adapter Command Register Operation Codes. 359 */ 360 361 enum BusLogic_OperationCode { 362 BusLogic_TestCommandCompleteInterrupt = 0x00, 363 BusLogic_InitializeMailbox = 0x01, 364 BusLogic_ExecuteMailboxCommand = 0x02, 365 BusLogic_ExecuteBIOSCommand = 0x03, 366 BusLogic_InquireBoardID = 0x04, 367 BusLogic_EnableOutgoingMailboxAvailableInt = 0x05, 368 BusLogic_SetSCSISelectionTimeout = 0x06, 369 BusLogic_SetPreemptTimeOnBus = 0x07, 370 BusLogic_SetTimeOffBus = 0x08, 371 BusLogic_SetBusTransferRate = 0x09, 372 BusLogic_InquireInstalledDevicesID0to7 = 0x0A, 373 BusLogic_InquireConfiguration = 0x0B, 374 BusLogic_EnableTargetMode = 0x0C, 375 BusLogic_InquireSetupInformation = 0x0D, 376 BusLogic_WriteAdapterLocalRAM = 0x1A, 377 BusLogic_ReadAdapterLocalRAM = 0x1B, 378 BusLogic_WriteBusMasterChipFIFO = 0x1C, 379 BusLogic_ReadBusMasterChipFIFO = 0x1D, 380 BusLogic_EchoCommandData = 0x1F, 381 BusLogic_HostAdapterDiagnostic = 0x20, 382 BusLogic_SetAdapterOptions = 0x21, 383 BusLogic_InquireInstalledDevicesID8to15 = 0x23, 384 BusLogic_InquireTargetDevices = 0x24, 385 BusLogic_DisableHostAdapterInterrupt = 0x25, 386 BusLogic_InitializeExtendedMailbox = 0x81, 387 BusLogic_ExecuteSCSICommand = 0x83, 388 BusLogic_InquireFirmwareVersion3rdDigit = 0x84, 389 BusLogic_InquireFirmwareVersionLetter = 0x85, 390 BusLogic_InquirePCIHostAdapterInformation = 0x86, 391 BusLogic_InquireHostAdapterModelNumber = 0x8B, 392 BusLogic_InquireSynchronousPeriod = 0x8C, 393 BusLogic_InquireExtendedSetupInformation = 0x8D, 394 BusLogic_EnableStrictRoundRobinMode = 0x8F, 395 BusLogic_StoreHostAdapterLocalRAM = 0x90, 396 BusLogic_FetchHostAdapterLocalRAM = 0x91, 397 BusLogic_StoreLocalDataInEEPROM = 0x92, 398 BusLogic_UploadAutoSCSICode = 0x94, 399 BusLogic_ModifyIOAddress = 0x95, 400 BusLogic_SetCCBFormat = 0x96, 401 BusLogic_WriteInquiryBuffer = 0x9A, 402 BusLogic_ReadInquiryBuffer = 0x9B, 403 BusLogic_FlashROMUploadDownload = 0xA7, 404 BusLogic_ReadSCAMData = 0xA8, 405 BusLogic_WriteSCAMData = 0xA9 406 }; 407 408 /* 409 Define the Inquire Board ID reply structure. 410 */ 411 412 struct BusLogic_BoardID { 413 unsigned char BoardType; /* Byte 0 */ 414 unsigned char CustomFeatures; /* Byte 1 */ 415 unsigned char FirmwareVersion1stDigit; /* Byte 2 */ 416 unsigned char FirmwareVersion2ndDigit; /* Byte 3 */ 417 }; 418 419 /* 420 Define the Inquire Configuration reply structure. 421 */ 422 423 struct BusLogic_Configuration { 424 unsigned char:5; /* Byte 0 Bits 0-4 */ 425 bool DMA_Channel5:1; /* Byte 0 Bit 5 */ 426 bool DMA_Channel6:1; /* Byte 0 Bit 6 */ 427 bool DMA_Channel7:1; /* Byte 0 Bit 7 */ 428 bool IRQ_Channel9:1; /* Byte 1 Bit 0 */ 429 bool IRQ_Channel10:1; /* Byte 1 Bit 1 */ 430 bool IRQ_Channel11:1; /* Byte 1 Bit 2 */ 431 bool IRQ_Channel12:1; /* Byte 1 Bit 3 */ 432 unsigned char:1; /* Byte 1 Bit 4 */ 433 bool IRQ_Channel14:1; /* Byte 1 Bit 5 */ 434 bool IRQ_Channel15:1; /* Byte 1 Bit 6 */ 435 unsigned char:1; /* Byte 1 Bit 7 */ 436 unsigned char HostAdapterID:4; /* Byte 2 Bits 0-3 */ 437 unsigned char:4; /* Byte 2 Bits 4-7 */ 438 }; 439 440 /* 441 Define the Inquire Setup Information reply structure. 442 */ 443 444 struct BusLogic_SynchronousValue { 445 unsigned char Offset:4; /* Bits 0-3 */ 446 unsigned char TransferPeriod:3; /* Bits 4-6 */ 447 bool Synchronous:1; /* Bit 7 */ 448 }; 449 450 struct BusLogic_SetupInformation { 451 bool SynchronousInitiationEnabled:1; /* Byte 0 Bit 0 */ 452 bool ParityCheckingEnabled:1; /* Byte 0 Bit 1 */ 453 unsigned char:6; /* Byte 0 Bits 2-7 */ 454 unsigned char BusTransferRate; /* Byte 1 */ 455 unsigned char PreemptTimeOnBus; /* Byte 2 */ 456 unsigned char TimeOffBus; /* Byte 3 */ 457 unsigned char MailboxCount; /* Byte 4 */ 458 unsigned char MailboxAddress[3]; /* Bytes 5-7 */ 459 struct BusLogic_SynchronousValue SynchronousValuesID0to7[8]; /* Bytes 8-15 */ 460 unsigned char DisconnectPermittedID0to7; /* Byte 16 */ 461 unsigned char Signature; /* Byte 17 */ 462 unsigned char CharacterD; /* Byte 18 */ 463 unsigned char HostBusType; /* Byte 19 */ 464 unsigned char WideTransfersPermittedID0to7; /* Byte 20 */ 465 unsigned char WideTransfersActiveID0to7; /* Byte 21 */ 466 struct BusLogic_SynchronousValue SynchronousValuesID8to15[8]; /* Bytes 22-29 */ 467 unsigned char DisconnectPermittedID8to15; /* Byte 30 */ 468 unsigned char:8; /* Byte 31 */ 469 unsigned char WideTransfersPermittedID8to15; /* Byte 32 */ 470 unsigned char WideTransfersActiveID8to15; /* Byte 33 */ 471 }; 472 473 /* 474 Define the Initialize Extended Mailbox request structure. 475 */ 476 477 struct BusLogic_ExtendedMailboxRequest { 478 unsigned char MailboxCount; /* Byte 0 */ 479 u32 BaseMailboxAddress; /* Bytes 1-4 */ 480 } PACKED; 481 482 483 /* 484 Define the Inquire PCI Host Adapter Information reply type. The ISA 485 Compatible I/O Port values are defined here and are also used with 486 the Modify I/O Address command. 487 */ 488 489 enum BusLogic_ISACompatibleIOPort { 490 BusLogic_IO_330 = 0, 491 BusLogic_IO_334 = 1, 492 BusLogic_IO_230 = 2, 493 BusLogic_IO_234 = 3, 494 BusLogic_IO_130 = 4, 495 BusLogic_IO_134 = 5, 496 BusLogic_IO_Disable = 6, 497 BusLogic_IO_Disable2 = 7 498 } PACKED; 499 500 struct BusLogic_PCIHostAdapterInformation { 501 enum BusLogic_ISACompatibleIOPort ISACompatibleIOPort; /* Byte 0 */ 502 unsigned char PCIAssignedIRQChannel; /* Byte 1 */ 503 bool LowByteTerminated:1; /* Byte 2 Bit 0 */ 504 bool HighByteTerminated:1; /* Byte 2 Bit 1 */ 505 unsigned char:2; /* Byte 2 Bits 2-3 */ 506 bool JP1:1; /* Byte 2 Bit 4 */ 507 bool JP2:1; /* Byte 2 Bit 5 */ 508 bool JP3:1; /* Byte 2 Bit 6 */ 509 bool GenericInfoValid:1;/* Byte 2 Bit 7 */ 510 unsigned char:8; /* Byte 3 */ 511 }; 512 513 /* 514 Define the Inquire Extended Setup Information reply structure. 515 */ 516 517 struct BusLogic_ExtendedSetupInformation { 518 unsigned char BusType; /* Byte 0 */ 519 unsigned char BIOS_Address; /* Byte 1 */ 520 unsigned short ScatterGatherLimit; /* Bytes 2-3 */ 521 unsigned char MailboxCount; /* Byte 4 */ 522 u32 BaseMailboxAddress; /* Bytes 5-8 */ 523 struct { 524 unsigned char:2; /* Byte 9 Bits 0-1 */ 525 bool FastOnEISA:1; /* Byte 9 Bit 2 */ 526 unsigned char:3; /* Byte 9 Bits 3-5 */ 527 bool LevelSensitiveInterrupt:1; /* Byte 9 Bit 6 */ 528 unsigned char:1; /* Byte 9 Bit 7 */ 529 } Misc; 530 unsigned char FirmwareRevision[3]; /* Bytes 10-12 */ 531 bool HostWideSCSI:1; /* Byte 13 Bit 0 */ 532 bool HostDifferentialSCSI:1; /* Byte 13 Bit 1 */ 533 bool HostSupportsSCAM:1; /* Byte 13 Bit 2 */ 534 bool HostUltraSCSI:1; /* Byte 13 Bit 3 */ 535 bool HostSmartTermination:1; /* Byte 13 Bit 4 */ 536 unsigned char:3; /* Byte 13 Bits 5-7 */ 537 } PACKED; 538 539 /* 540 Define the Enable Strict Round Robin Mode request type. 541 */ 542 543 enum BusLogic_RoundRobinModeRequest { 544 BusLogic_AggressiveRoundRobinMode = 0, 545 BusLogic_StrictRoundRobinMode = 1 546 } PACKED; 547 548 549 /* 550 Define the Fetch Host Adapter Local RAM request type. 551 */ 552 553 #define BusLogic_BIOS_BaseOffset 0 554 #define BusLogic_AutoSCSI_BaseOffset 64 555 556 struct BusLogic_FetchHostAdapterLocalRAMRequest { 557 unsigned char ByteOffset; /* Byte 0 */ 558 unsigned char ByteCount; /* Byte 1 */ 559 }; 560 561 /* 562 Define the Host Adapter Local RAM AutoSCSI structure. 563 */ 564 565 struct BusLogic_AutoSCSIData { 566 unsigned char InternalFactorySignature[2]; /* Bytes 0-1 */ 567 unsigned char InformationByteCount; /* Byte 2 */ 568 unsigned char HostAdapterType[6]; /* Bytes 3-8 */ 569 unsigned char:8; /* Byte 9 */ 570 bool FloppyEnabled:1; /* Byte 10 Bit 0 */ 571 bool FloppySecondary:1; /* Byte 10 Bit 1 */ 572 bool LevelSensitiveInterrupt:1; /* Byte 10 Bit 2 */ 573 unsigned char:2; /* Byte 10 Bits 3-4 */ 574 unsigned char SystemRAMAreaForBIOS:3; /* Byte 10 Bits 5-7 */ 575 unsigned char DMA_Channel:7; /* Byte 11 Bits 0-6 */ 576 bool DMA_AutoConfiguration:1; /* Byte 11 Bit 7 */ 577 unsigned char IRQ_Channel:7; /* Byte 12 Bits 0-6 */ 578 bool IRQ_AutoConfiguration:1; /* Byte 12 Bit 7 */ 579 unsigned char DMA_TransferRate; /* Byte 13 */ 580 unsigned char SCSI_ID; /* Byte 14 */ 581 bool LowByteTerminated:1; /* Byte 15 Bit 0 */ 582 bool ParityCheckingEnabled:1; /* Byte 15 Bit 1 */ 583 bool HighByteTerminated:1; /* Byte 15 Bit 2 */ 584 bool NoisyCablingEnvironment:1; /* Byte 15 Bit 3 */ 585 bool FastSynchronousNegotiation:1; /* Byte 15 Bit 4 */ 586 bool BusResetEnabled:1; /* Byte 15 Bit 5 */ 587 bool:1; /* Byte 15 Bit 6 */ 588 bool ActiveNegationEnabled:1; /* Byte 15 Bit 7 */ 589 unsigned char BusOnDelay; /* Byte 16 */ 590 unsigned char BusOffDelay; /* Byte 17 */ 591 bool HostAdapterBIOSEnabled:1; /* Byte 18 Bit 0 */ 592 bool BIOSRedirectionOfINT19Enabled:1; /* Byte 18 Bit 1 */ 593 bool ExtendedTranslationEnabled:1; /* Byte 18 Bit 2 */ 594 bool MapRemovableAsFixedEnabled:1; /* Byte 18 Bit 3 */ 595 bool:1; /* Byte 18 Bit 4 */ 596 bool BIOSSupportsMoreThan2DrivesEnabled:1; /* Byte 18 Bit 5 */ 597 bool BIOSInterruptModeEnabled:1; /* Byte 18 Bit 6 */ 598 bool FlopticalSupportEnabled:1; /* Byte 19 Bit 7 */ 599 unsigned short DeviceEnabled; /* Bytes 19-20 */ 600 unsigned short WidePermitted; /* Bytes 21-22 */ 601 unsigned short FastPermitted; /* Bytes 23-24 */ 602 unsigned short SynchronousPermitted; /* Bytes 25-26 */ 603 unsigned short DisconnectPermitted; /* Bytes 27-28 */ 604 unsigned short SendStartUnitCommand; /* Bytes 29-30 */ 605 unsigned short IgnoreInBIOSScan; /* Bytes 31-32 */ 606 unsigned char PCIInterruptPin:2; /* Byte 33 Bits 0-1 */ 607 unsigned char HostAdapterIOPortAddress:2; /* Byte 33 Bits 2-3 */ 608 bool StrictRoundRobinModeEnabled:1; /* Byte 33 Bit 4 */ 609 bool VESABusSpeedGreaterThan33MHz:1; /* Byte 33 Bit 5 */ 610 bool VESABurstWriteEnabled:1; /* Byte 33 Bit 6 */ 611 bool VESABurstReadEnabled:1; /* Byte 33 Bit 7 */ 612 unsigned short UltraPermitted; /* Bytes 34-35 */ 613 unsigned int:32; /* Bytes 36-39 */ 614 unsigned char:8; /* Byte 40 */ 615 unsigned char AutoSCSIMaximumLUN; /* Byte 41 */ 616 bool:1; /* Byte 42 Bit 0 */ 617 bool SCAM_Dominant:1; /* Byte 42 Bit 1 */ 618 bool SCAM_Enabled:1; /* Byte 42 Bit 2 */ 619 bool SCAM_Level2:1; /* Byte 42 Bit 3 */ 620 unsigned char:4; /* Byte 42 Bits 4-7 */ 621 bool INT13ExtensionEnabled:1; /* Byte 43 Bit 0 */ 622 bool:1; /* Byte 43 Bit 1 */ 623 bool CDROMBootEnabled:1; /* Byte 43 Bit 2 */ 624 unsigned char:5; /* Byte 43 Bits 3-7 */ 625 unsigned char BootTargetID:4; /* Byte 44 Bits 0-3 */ 626 unsigned char BootChannel:4; /* Byte 44 Bits 4-7 */ 627 unsigned char ForceBusDeviceScanningOrder:1; /* Byte 45 Bit 0 */ 628 unsigned char:7; /* Byte 45 Bits 1-7 */ 629 unsigned short NonTaggedToAlternateLUNPermitted; /* Bytes 46-47 */ 630 unsigned short RenegotiateSyncAfterCheckCondition; /* Bytes 48-49 */ 631 unsigned char Reserved[10]; /* Bytes 50-59 */ 632 unsigned char ManufacturingDiagnostic[2]; /* Bytes 60-61 */ 633 unsigned short Checksum; /* Bytes 62-63 */ 634 } PACKED; 635 636 /* 637 Define the Host Adapter Local RAM Auto SCSI Byte 45 structure. 638 */ 639 640 struct BusLogic_AutoSCSIByte45 { 641 unsigned char ForceBusDeviceScanningOrder:1; /* Bit 0 */ 642 unsigned char:7; /* Bits 1-7 */ 643 }; 644 645 /* 646 Define the Host Adapter Local RAM BIOS Drive Map Byte structure. 647 */ 648 649 #define BusLogic_BIOS_DriveMapOffset 17 650 651 struct BusLogic_BIOSDriveMapByte { 652 unsigned char TargetIDBit3:1; /* Bit 0 */ 653 unsigned char:2; /* Bits 1-2 */ 654 enum BusLogic_BIOS_DiskGeometryTranslation DiskGeometry:2; /* Bits 3-4 */ 655 unsigned char TargetID:3; /* Bits 5-7 */ 656 }; 657 658 /* 659 Define the Set CCB Format request type. Extended LUN Format CCBs are 660 necessary to support more than 8 Logical Units per Target Device. 661 */ 662 663 enum BusLogic_SetCCBFormatRequest { 664 BusLogic_LegacyLUNFormatCCB = 0, 665 BusLogic_ExtendedLUNFormatCCB = 1 666 } PACKED; 667 668 /* 669 Define the Outgoing Mailbox Action Codes. 670 */ 671 672 enum BusLogic_ActionCode { 673 BusLogic_OutgoingMailboxFree = 0x00, 674 BusLogic_MailboxStartCommand = 0x01, 675 BusLogic_MailboxAbortCommand = 0x02 676 } PACKED; 677 678 679 /* 680 Define the Incoming Mailbox Completion Codes. The MultiMaster Firmware 681 only uses codes 0 - 4. The FlashPoint SCCB Manager has no mailboxes, so 682 completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5. 683 */ 684 685 enum BusLogic_CompletionCode { 686 BusLogic_IncomingMailboxFree = 0x00, 687 BusLogic_CommandCompletedWithoutError = 0x01, 688 BusLogic_CommandAbortedAtHostRequest = 0x02, 689 BusLogic_AbortedCommandNotFound = 0x03, 690 BusLogic_CommandCompletedWithError = 0x04, 691 BusLogic_InvalidCCB = 0x05 692 } PACKED; 693 694 /* 695 Define the Command Control Block (CCB) Opcodes. 696 */ 697 698 enum BusLogic_CCB_Opcode { 699 BusLogic_InitiatorCCB = 0x00, 700 BusLogic_TargetCCB = 0x01, 701 BusLogic_InitiatorCCB_ScatterGather = 0x02, 702 BusLogic_InitiatorCCB_ResidualDataLength = 0x03, 703 BusLogic_InitiatorCCB_ScatterGatherResidual = 0x04, 704 BusLogic_BusDeviceReset = 0x81 705 } PACKED; 706 707 708 /* 709 Define the CCB Data Direction Codes. 710 */ 711 712 enum BusLogic_DataDirection { 713 BusLogic_UncheckedDataTransfer = 0, 714 BusLogic_DataInLengthChecked = 1, 715 BusLogic_DataOutLengthChecked = 2, 716 BusLogic_NoDataTransfer = 3 717 }; 718 719 720 /* 721 Define the Host Adapter Status Codes. The MultiMaster Firmware does not 722 return status code 0x0C; it uses 0x12 for both overruns and underruns. 723 */ 724 725 enum BusLogic_HostAdapterStatus { 726 BusLogic_CommandCompletedNormally = 0x00, 727 BusLogic_LinkedCommandCompleted = 0x0A, 728 BusLogic_LinkedCommandCompletedWithFlag = 0x0B, 729 BusLogic_DataUnderRun = 0x0C, 730 BusLogic_SCSISelectionTimeout = 0x11, 731 BusLogic_DataOverRun = 0x12, 732 BusLogic_UnexpectedBusFree = 0x13, 733 BusLogic_InvalidBusPhaseRequested = 0x14, 734 BusLogic_InvalidOutgoingMailboxActionCode = 0x15, 735 BusLogic_InvalidCommandOperationCode = 0x16, 736 BusLogic_LinkedCCBhasInvalidLUN = 0x17, 737 BusLogic_InvalidCommandParameter = 0x1A, 738 BusLogic_AutoRequestSenseFailed = 0x1B, 739 BusLogic_TaggedQueuingMessageRejected = 0x1C, 740 BusLogic_UnsupportedMessageReceived = 0x1D, 741 BusLogic_HostAdapterHardwareFailed = 0x20, 742 BusLogic_TargetFailedResponseToATN = 0x21, 743 BusLogic_HostAdapterAssertedRST = 0x22, 744 BusLogic_OtherDeviceAssertedRST = 0x23, 745 BusLogic_TargetDeviceReconnectedImproperly = 0x24, 746 BusLogic_HostAdapterAssertedBusDeviceReset = 0x25, 747 BusLogic_AbortQueueGenerated = 0x26, 748 BusLogic_HostAdapterSoftwareError = 0x27, 749 BusLogic_HostAdapterHardwareTimeoutError = 0x30, 750 BusLogic_SCSIParityErrorDetected = 0x34 751 } PACKED; 752 753 754 /* 755 Define the SCSI Target Device Status Codes. 756 */ 757 758 enum BusLogic_TargetDeviceStatus { 759 BusLogic_OperationGood = 0x00, 760 BusLogic_CheckCondition = 0x02, 761 BusLogic_DeviceBusy = 0x08 762 } PACKED; 763 764 /* 765 Define the Queue Tag Codes. 766 */ 767 768 enum BusLogic_QueueTag { 769 BusLogic_SimpleQueueTag = 0, 770 BusLogic_HeadOfQueueTag = 1, 771 BusLogic_OrderedQueueTag = 2, 772 BusLogic_ReservedQT = 3 773 }; 774 775 /* 776 Define the SCSI Command Descriptor Block (CDB). 777 */ 778 779 #define BusLogic_CDB_MaxLength 12 780 781 typedef unsigned char SCSI_CDB_T[BusLogic_CDB_MaxLength]; 782 783 784 /* 785 Define the Scatter/Gather Segment structure required by the MultiMaster 786 Firmware Interface and the FlashPoint SCCB Manager. 787 */ 788 789 struct BusLogic_ScatterGatherSegment { 790 u32 SegmentByteCount; /* Bytes 0-3 */ 791 u32 SegmentDataPointer; /* Bytes 4-7 */ 792 }; 793 794 /* 795 Define the Driver CCB Status Codes. 796 */ 797 798 enum BusLogic_CCB_Status { 799 BusLogic_CCB_Free = 0, 800 BusLogic_CCB_Active = 1, 801 BusLogic_CCB_Completed = 2, 802 BusLogic_CCB_Reset = 3 803 } PACKED; 804 805 806 /* 807 Define the 32 Bit Mode Command Control Block (CCB) structure. The first 40 808 bytes are defined by and common to both the MultiMaster Firmware and the 809 FlashPoint SCCB Manager. The next 60 bytes are defined by the FlashPoint 810 SCCB Manager. The remaining components are defined by the Linux BusLogic 811 Driver. Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode 812 CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to 813 byte 1, and the Logical Unit field in byte 17 expanded to 6 bits. In theory, 814 Extended LUN Format CCBs can support up to 64 Logical Units, but in practice 815 many devices will respond improperly to Logical Units between 32 and 63, and 816 the SCSI-2 specification defines Bit 5 as LUNTAR. Extended LUN Format CCBs 817 are used by recent versions of the MultiMaster Firmware, as well as by the 818 FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical 819 Units. Since 64 Logical Units are unlikely to be needed in practice, and 820 since they are problematic for the above reasons, and since limiting them to 821 5 bits simplifies the CCB structure definition, this driver only supports 822 32 Logical Units per Target Device. 823 */ 824 825 struct BusLogic_CCB { 826 /* 827 MultiMaster Firmware and FlashPoint SCCB Manager Common Portion. 828 */ 829 enum BusLogic_CCB_Opcode Opcode; /* Byte 0 */ 830 unsigned char:3; /* Byte 1 Bits 0-2 */ 831 enum BusLogic_DataDirection DataDirection:2; /* Byte 1 Bits 3-4 */ 832 bool TagEnable:1; /* Byte 1 Bit 5 */ 833 enum BusLogic_QueueTag QueueTag:2; /* Byte 1 Bits 6-7 */ 834 unsigned char CDB_Length; /* Byte 2 */ 835 unsigned char SenseDataLength; /* Byte 3 */ 836 u32 DataLength; /* Bytes 4-7 */ 837 u32 DataPointer; /* Bytes 8-11 */ 838 unsigned char:8; /* Byte 12 */ 839 unsigned char:8; /* Byte 13 */ 840 enum BusLogic_HostAdapterStatus HostAdapterStatus; /* Byte 14 */ 841 enum BusLogic_TargetDeviceStatus TargetDeviceStatus; /* Byte 15 */ 842 unsigned char TargetID; /* Byte 16 */ 843 unsigned char LogicalUnit:5; /* Byte 17 Bits 0-4 */ 844 bool LegacyTagEnable:1; /* Byte 17 Bit 5 */ 845 enum BusLogic_QueueTag LegacyQueueTag:2; /* Byte 17 Bits 6-7 */ 846 SCSI_CDB_T CDB; /* Bytes 18-29 */ 847 unsigned char:8; /* Byte 30 */ 848 unsigned char:8; /* Byte 31 */ 849 unsigned int:32; /* Bytes 32-35 */ 850 u32 SenseDataPointer; /* Bytes 36-39 */ 851 /* 852 FlashPoint SCCB Manager Defined Portion. 853 */ 854 void (*CallbackFunction) (struct BusLogic_CCB *); /* Bytes 40-43 */ 855 u32 BaseAddress; /* Bytes 44-47 */ 856 enum BusLogic_CompletionCode CompletionCode; /* Byte 48 */ 857 #ifdef CONFIG_SCSI_FLASHPOINT 858 unsigned char:8; /* Byte 49 */ 859 unsigned short OS_Flags; /* Bytes 50-51 */ 860 unsigned char Private[48]; /* Bytes 52-99 */ 861 #endif 862 /* 863 BusLogic Linux Driver Defined Portion. 864 */ 865 dma_addr_t AllocationGroupHead; 866 unsigned int AllocationGroupSize; 867 u32 DMA_Handle; 868 enum BusLogic_CCB_Status Status; 869 unsigned long SerialNumber; 870 struct scsi_cmnd *Command; 871 struct BusLogic_HostAdapter *HostAdapter; 872 struct BusLogic_CCB *Next; 873 struct BusLogic_CCB *NextAll; 874 struct BusLogic_ScatterGatherSegment 875 ScatterGatherList[BusLogic_ScatterGatherLimit]; 876 }; 877 878 /* 879 Define the 32 Bit Mode Outgoing Mailbox structure. 880 */ 881 882 struct BusLogic_OutgoingMailbox { 883 u32 CCB; /* Bytes 0-3 */ 884 unsigned int:24; /* Bytes 4-6 */ 885 enum BusLogic_ActionCode ActionCode; /* Byte 7 */ 886 }; 887 888 /* 889 Define the 32 Bit Mode Incoming Mailbox structure. 890 */ 891 892 struct BusLogic_IncomingMailbox { 893 u32 CCB; /* Bytes 0-3 */ 894 enum BusLogic_HostAdapterStatus HostAdapterStatus; /* Byte 4 */ 895 enum BusLogic_TargetDeviceStatus TargetDeviceStatus; /* Byte 5 */ 896 unsigned char:8; /* Byte 6 */ 897 enum BusLogic_CompletionCode CompletionCode; /* Byte 7 */ 898 }; 899 900 901 /* 902 Define the BusLogic Driver Options structure. 903 */ 904 905 struct BusLogic_DriverOptions { 906 unsigned short TaggedQueuingPermitted; 907 unsigned short TaggedQueuingPermittedMask; 908 unsigned short BusSettleTime; 909 struct BusLogic_LocalOptions LocalOptions; 910 unsigned char CommonQueueDepth; 911 unsigned char QueueDepth[BusLogic_MaxTargetDevices]; 912 }; 913 914 /* 915 Define the Host Adapter Target Flags structure. 916 */ 917 918 struct BusLogic_TargetFlags { 919 bool TargetExists:1; 920 bool TaggedQueuingSupported:1; 921 bool WideTransfersSupported:1; 922 bool TaggedQueuingActive:1; 923 bool WideTransfersActive:1; 924 bool CommandSuccessfulFlag:1; 925 bool TargetInfoReported:1; 926 }; 927 928 /* 929 Define the Host Adapter Target Statistics structure. 930 */ 931 932 #define BusLogic_SizeBuckets 10 933 934 typedef unsigned int BusLogic_CommandSizeBuckets_T[BusLogic_SizeBuckets]; 935 936 struct BusLogic_TargetStatistics { 937 unsigned int CommandsAttempted; 938 unsigned int CommandsCompleted; 939 unsigned int ReadCommands; 940 unsigned int WriteCommands; 941 struct BusLogic_ByteCounter TotalBytesRead; 942 struct BusLogic_ByteCounter TotalBytesWritten; 943 BusLogic_CommandSizeBuckets_T ReadCommandSizeBuckets; 944 BusLogic_CommandSizeBuckets_T WriteCommandSizeBuckets; 945 unsigned short CommandAbortsRequested; 946 unsigned short CommandAbortsAttempted; 947 unsigned short CommandAbortsCompleted; 948 unsigned short BusDeviceResetsRequested; 949 unsigned short BusDeviceResetsAttempted; 950 unsigned short BusDeviceResetsCompleted; 951 unsigned short HostAdapterResetsRequested; 952 unsigned short HostAdapterResetsAttempted; 953 unsigned short HostAdapterResetsCompleted; 954 }; 955 956 /* 957 Define the FlashPoint Card Handle data type. 958 */ 959 960 #define FlashPoint_BadCardHandle 0xFFFFFFFF 961 962 typedef unsigned int FlashPoint_CardHandle_T; 963 964 965 /* 966 Define the FlashPoint Information structure. This structure is defined 967 by the FlashPoint SCCB Manager. 968 */ 969 970 struct FlashPoint_Info { 971 u32 BaseAddress; /* Bytes 0-3 */ 972 bool Present; /* Byte 4 */ 973 unsigned char IRQ_Channel; /* Byte 5 */ 974 unsigned char SCSI_ID; /* Byte 6 */ 975 unsigned char SCSI_LUN; /* Byte 7 */ 976 unsigned short FirmwareRevision; /* Bytes 8-9 */ 977 unsigned short SynchronousPermitted; /* Bytes 10-11 */ 978 unsigned short FastPermitted; /* Bytes 12-13 */ 979 unsigned short UltraPermitted; /* Bytes 14-15 */ 980 unsigned short DisconnectPermitted; /* Bytes 16-17 */ 981 unsigned short WidePermitted; /* Bytes 18-19 */ 982 bool ParityCheckingEnabled:1; /* Byte 20 Bit 0 */ 983 bool HostWideSCSI:1; /* Byte 20 Bit 1 */ 984 bool HostSoftReset:1; /* Byte 20 Bit 2 */ 985 bool ExtendedTranslationEnabled:1; /* Byte 20 Bit 3 */ 986 bool LowByteTerminated:1; /* Byte 20 Bit 4 */ 987 bool HighByteTerminated:1; /* Byte 20 Bit 5 */ 988 bool ReportDataUnderrun:1; /* Byte 20 Bit 6 */ 989 bool SCAM_Enabled:1; /* Byte 20 Bit 7 */ 990 bool SCAM_Level2:1; /* Byte 21 Bit 0 */ 991 unsigned char:7; /* Byte 21 Bits 1-7 */ 992 unsigned char Family; /* Byte 22 */ 993 unsigned char BusType; /* Byte 23 */ 994 unsigned char ModelNumber[3]; /* Bytes 24-26 */ 995 unsigned char RelativeCardNumber; /* Byte 27 */ 996 unsigned char Reserved[4]; /* Bytes 28-31 */ 997 unsigned int OS_Reserved; /* Bytes 32-35 */ 998 unsigned char TranslationInfo[4]; /* Bytes 36-39 */ 999 unsigned int Reserved2[5]; /* Bytes 40-59 */ 1000 unsigned int SecondaryRange; /* Bytes 60-63 */ 1001 }; 1002 1003 /* 1004 Define the BusLogic Driver Host Adapter structure. 1005 */ 1006 1007 struct BusLogic_HostAdapter { 1008 struct Scsi_Host *SCSI_Host; 1009 struct pci_dev *PCI_Device; 1010 enum BusLogic_HostAdapterType HostAdapterType; 1011 enum BusLogic_HostAdapterBusType HostAdapterBusType; 1012 unsigned long IO_Address; 1013 unsigned long PCI_Address; 1014 unsigned short AddressCount; 1015 unsigned char HostNumber; 1016 unsigned char ModelName[9]; 1017 unsigned char FirmwareVersion[6]; 1018 unsigned char FullModelName[18]; 1019 unsigned char Bus; 1020 unsigned char Device; 1021 unsigned char IRQ_Channel; 1022 unsigned char DMA_Channel; 1023 unsigned char SCSI_ID; 1024 bool IRQ_ChannelAcquired:1; 1025 bool DMA_ChannelAcquired:1; 1026 bool ExtendedTranslationEnabled:1; 1027 bool ParityCheckingEnabled:1; 1028 bool BusResetEnabled:1; 1029 bool LevelSensitiveInterrupt:1; 1030 bool HostWideSCSI:1; 1031 bool HostDifferentialSCSI:1; 1032 bool HostSupportsSCAM:1; 1033 bool HostUltraSCSI:1; 1034 bool ExtendedLUNSupport:1; 1035 bool TerminationInfoValid:1; 1036 bool LowByteTerminated:1; 1037 bool HighByteTerminated:1; 1038 bool BounceBuffersRequired:1; 1039 bool StrictRoundRobinModeSupport:1; 1040 bool SCAM_Enabled:1; 1041 bool SCAM_Level2:1; 1042 bool HostAdapterInitialized:1; 1043 bool HostAdapterExternalReset:1; 1044 bool HostAdapterInternalError:1; 1045 bool ProcessCompletedCCBsActive; 1046 volatile bool HostAdapterCommandCompleted; 1047 unsigned short HostAdapterScatterGatherLimit; 1048 unsigned short DriverScatterGatherLimit; 1049 unsigned short MaxTargetDevices; 1050 unsigned short MaxLogicalUnits; 1051 unsigned short MailboxCount; 1052 unsigned short InitialCCBs; 1053 unsigned short IncrementalCCBs; 1054 unsigned short AllocatedCCBs; 1055 unsigned short DriverQueueDepth; 1056 unsigned short HostAdapterQueueDepth; 1057 unsigned short UntaggedQueueDepth; 1058 unsigned short CommonQueueDepth; 1059 unsigned short BusSettleTime; 1060 unsigned short SynchronousPermitted; 1061 unsigned short FastPermitted; 1062 unsigned short UltraPermitted; 1063 unsigned short WidePermitted; 1064 unsigned short DisconnectPermitted; 1065 unsigned short TaggedQueuingPermitted; 1066 unsigned short ExternalHostAdapterResets; 1067 unsigned short HostAdapterInternalErrors; 1068 unsigned short TargetDeviceCount; 1069 unsigned short MessageBufferLength; 1070 u32 BIOS_Address; 1071 struct BusLogic_DriverOptions *DriverOptions; 1072 struct FlashPoint_Info FlashPointInfo; 1073 FlashPoint_CardHandle_T CardHandle; 1074 struct list_head host_list; 1075 struct BusLogic_CCB *All_CCBs; 1076 struct BusLogic_CCB *Free_CCBs; 1077 struct BusLogic_CCB *FirstCompletedCCB; 1078 struct BusLogic_CCB *LastCompletedCCB; 1079 struct BusLogic_CCB *BusDeviceResetPendingCCB[BusLogic_MaxTargetDevices]; 1080 struct BusLogic_TargetFlags TargetFlags[BusLogic_MaxTargetDevices]; 1081 unsigned char QueueDepth[BusLogic_MaxTargetDevices]; 1082 unsigned char SynchronousPeriod[BusLogic_MaxTargetDevices]; 1083 unsigned char SynchronousOffset[BusLogic_MaxTargetDevices]; 1084 unsigned char ActiveCommands[BusLogic_MaxTargetDevices]; 1085 unsigned int CommandsSinceReset[BusLogic_MaxTargetDevices]; 1086 unsigned long LastSequencePoint[BusLogic_MaxTargetDevices]; 1087 unsigned long LastResetAttempted[BusLogic_MaxTargetDevices]; 1088 unsigned long LastResetCompleted[BusLogic_MaxTargetDevices]; 1089 struct BusLogic_OutgoingMailbox *FirstOutgoingMailbox; 1090 struct BusLogic_OutgoingMailbox *LastOutgoingMailbox; 1091 struct BusLogic_OutgoingMailbox *NextOutgoingMailbox; 1092 struct BusLogic_IncomingMailbox *FirstIncomingMailbox; 1093 struct BusLogic_IncomingMailbox *LastIncomingMailbox; 1094 struct BusLogic_IncomingMailbox *NextIncomingMailbox; 1095 struct BusLogic_TargetStatistics TargetStatistics[BusLogic_MaxTargetDevices]; 1096 unsigned char *MailboxSpace; 1097 dma_addr_t MailboxSpaceHandle; 1098 unsigned int MailboxSize; 1099 unsigned long CCB_Offset; 1100 char MessageBuffer[BusLogic_MessageBufferSize]; 1101 }; 1102 1103 /* 1104 Define a structure for the BIOS Disk Parameters. 1105 */ 1106 1107 struct BIOS_DiskParameters { 1108 int Heads; 1109 int Sectors; 1110 int Cylinders; 1111 }; 1112 1113 /* 1114 Define a structure for the SCSI Inquiry command results. 1115 */ 1116 1117 struct SCSI_Inquiry { 1118 unsigned char PeripheralDeviceType:5; /* Byte 0 Bits 0-4 */ 1119 unsigned char PeripheralQualifier:3; /* Byte 0 Bits 5-7 */ 1120 unsigned char DeviceTypeModifier:7; /* Byte 1 Bits 0-6 */ 1121 bool RMB:1; /* Byte 1 Bit 7 */ 1122 unsigned char ANSI_ApprovedVersion:3; /* Byte 2 Bits 0-2 */ 1123 unsigned char ECMA_Version:3; /* Byte 2 Bits 3-5 */ 1124 unsigned char ISO_Version:2; /* Byte 2 Bits 6-7 */ 1125 unsigned char ResponseDataFormat:4; /* Byte 3 Bits 0-3 */ 1126 unsigned char:2; /* Byte 3 Bits 4-5 */ 1127 bool TrmIOP:1; /* Byte 3 Bit 6 */ 1128 bool AENC:1; /* Byte 3 Bit 7 */ 1129 unsigned char AdditionalLength; /* Byte 4 */ 1130 unsigned char:8; /* Byte 5 */ 1131 unsigned char:8; /* Byte 6 */ 1132 bool SftRe:1; /* Byte 7 Bit 0 */ 1133 bool CmdQue:1; /* Byte 7 Bit 1 */ 1134 bool:1; /* Byte 7 Bit 2 */ 1135 bool Linked:1; /* Byte 7 Bit 3 */ 1136 bool Sync:1; /* Byte 7 Bit 4 */ 1137 bool WBus16:1; /* Byte 7 Bit 5 */ 1138 bool WBus32:1; /* Byte 7 Bit 6 */ 1139 bool RelAdr:1; /* Byte 7 Bit 7 */ 1140 unsigned char VendorIdentification[8]; /* Bytes 8-15 */ 1141 unsigned char ProductIdentification[16]; /* Bytes 16-31 */ 1142 unsigned char ProductRevisionLevel[4]; /* Bytes 32-35 */ 1143 }; 1144 1145 1146 /* 1147 Define functions to provide an abstraction for reading and writing the 1148 Host Adapter I/O Registers. 1149 */ 1150 1151 static inline void BusLogic_SCSIBusReset(struct BusLogic_HostAdapter *HostAdapter) 1152 { 1153 union BusLogic_ControlRegister ControlRegister; 1154 ControlRegister.All = 0; 1155 ControlRegister.cr.SCSIBusReset = true; 1156 outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset); 1157 } 1158 1159 static inline void BusLogic_InterruptReset(struct BusLogic_HostAdapter *HostAdapter) 1160 { 1161 union BusLogic_ControlRegister ControlRegister; 1162 ControlRegister.All = 0; 1163 ControlRegister.cr.InterruptReset = true; 1164 outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset); 1165 } 1166 1167 static inline void BusLogic_SoftReset(struct BusLogic_HostAdapter *HostAdapter) 1168 { 1169 union BusLogic_ControlRegister ControlRegister; 1170 ControlRegister.All = 0; 1171 ControlRegister.cr.SoftReset = true; 1172 outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset); 1173 } 1174 1175 static inline void BusLogic_HardReset(struct BusLogic_HostAdapter *HostAdapter) 1176 { 1177 union BusLogic_ControlRegister ControlRegister; 1178 ControlRegister.All = 0; 1179 ControlRegister.cr.HardReset = true; 1180 outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset); 1181 } 1182 1183 static inline unsigned char BusLogic_ReadStatusRegister(struct BusLogic_HostAdapter *HostAdapter) 1184 { 1185 return inb(HostAdapter->IO_Address + BusLogic_StatusRegisterOffset); 1186 } 1187 1188 static inline void BusLogic_WriteCommandParameterRegister(struct BusLogic_HostAdapter 1189 *HostAdapter, unsigned char Value) 1190 { 1191 outb(Value, HostAdapter->IO_Address + BusLogic_CommandParameterRegisterOffset); 1192 } 1193 1194 static inline unsigned char BusLogic_ReadDataInRegister(struct BusLogic_HostAdapter *HostAdapter) 1195 { 1196 return inb(HostAdapter->IO_Address + BusLogic_DataInRegisterOffset); 1197 } 1198 1199 static inline unsigned char BusLogic_ReadInterruptRegister(struct BusLogic_HostAdapter *HostAdapter) 1200 { 1201 return inb(HostAdapter->IO_Address + BusLogic_InterruptRegisterOffset); 1202 } 1203 1204 static inline unsigned char BusLogic_ReadGeometryRegister(struct BusLogic_HostAdapter *HostAdapter) 1205 { 1206 return inb(HostAdapter->IO_Address + BusLogic_GeometryRegisterOffset); 1207 } 1208 1209 /* 1210 BusLogic_StartMailboxCommand issues an Execute Mailbox Command, which 1211 notifies the Host Adapter that an entry has been made in an Outgoing 1212 Mailbox. 1213 */ 1214 1215 static inline void BusLogic_StartMailboxCommand(struct BusLogic_HostAdapter *HostAdapter) 1216 { 1217 BusLogic_WriteCommandParameterRegister(HostAdapter, BusLogic_ExecuteMailboxCommand); 1218 } 1219 1220 /* 1221 BusLogic_Delay waits for Seconds to elapse. 1222 */ 1223 1224 static inline void BusLogic_Delay(int Seconds) 1225 { 1226 mdelay(1000 * Seconds); 1227 } 1228 1229 /* 1230 Virtual_to_Bus and Bus_to_Virtual map between Kernel Virtual Addresses 1231 and PCI/VLB/EISA/ISA Bus Addresses. 1232 */ 1233 1234 static inline u32 Virtual_to_Bus(void *VirtualAddress) 1235 { 1236 return (u32) virt_to_bus(VirtualAddress); 1237 } 1238 1239 static inline void *Bus_to_Virtual(u32 BusAddress) 1240 { 1241 return (void *) bus_to_virt(BusAddress); 1242 } 1243 1244 /* 1245 Virtual_to_32Bit_Virtual maps between Kernel Virtual Addresses and 1246 32 bit Kernel Virtual Addresses. This avoids compilation warnings 1247 on 64 bit architectures. 1248 */ 1249 1250 static inline u32 Virtual_to_32Bit_Virtual(void *VirtualAddress) 1251 { 1252 return (u32) (unsigned long) VirtualAddress; 1253 } 1254 1255 /* 1256 BusLogic_IncrementErrorCounter increments Error Counter by 1, stopping at 1257 65535 rather than wrapping around to 0. 1258 */ 1259 1260 static inline void BusLogic_IncrementErrorCounter(unsigned short *ErrorCounter) 1261 { 1262 if (*ErrorCounter < 65535) 1263 (*ErrorCounter)++; 1264 } 1265 1266 /* 1267 BusLogic_IncrementByteCounter increments Byte Counter by Amount. 1268 */ 1269 1270 static inline void BusLogic_IncrementByteCounter(struct BusLogic_ByteCounter 1271 *ByteCounter, unsigned int Amount) 1272 { 1273 ByteCounter->Units += Amount; 1274 if (ByteCounter->Units > 999999999) { 1275 ByteCounter->Units -= 1000000000; 1276 ByteCounter->Billions++; 1277 } 1278 } 1279 1280 /* 1281 BusLogic_IncrementSizeBucket increments the Bucket for Amount. 1282 */ 1283 1284 static inline void BusLogic_IncrementSizeBucket(BusLogic_CommandSizeBuckets_T CommandSizeBuckets, unsigned int Amount) 1285 { 1286 int Index = 0; 1287 if (Amount < 8 * 1024) { 1288 if (Amount < 2 * 1024) 1289 Index = (Amount < 1 * 1024 ? 0 : 1); 1290 else 1291 Index = (Amount < 4 * 1024 ? 2 : 3); 1292 } else if (Amount < 128 * 1024) { 1293 if (Amount < 32 * 1024) 1294 Index = (Amount < 16 * 1024 ? 4 : 5); 1295 else 1296 Index = (Amount < 64 * 1024 ? 6 : 7); 1297 } else 1298 Index = (Amount < 256 * 1024 ? 8 : 9); 1299 CommandSizeBuckets[Index]++; 1300 } 1301 1302 /* 1303 Define the version number of the FlashPoint Firmware (SCCB Manager). 1304 */ 1305 1306 #define FlashPoint_FirmwareVersion "5.02" 1307 1308 /* 1309 Define the possible return values from FlashPoint_HandleInterrupt. 1310 */ 1311 1312 #define FlashPoint_NormalInterrupt 0x00 1313 #define FlashPoint_InternalError 0xFE 1314 #define FlashPoint_ExternalBusReset 0xFF 1315 1316 /* 1317 Define prototypes for the forward referenced BusLogic Driver 1318 Internal Functions. 1319 */ 1320 1321 static const char *BusLogic_DriverInfo(struct Scsi_Host *); 1322 static int BusLogic_QueueCommand(struct Scsi_Host *h, struct scsi_cmnd *); 1323 static int BusLogic_BIOSDiskParameters(struct scsi_device *, struct block_device *, sector_t, int *); 1324 static int BusLogic_SlaveConfigure(struct scsi_device *); 1325 static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *); 1326 static irqreturn_t BusLogic_InterruptHandler(int, void *); 1327 static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *, bool HardReset); 1328 static void BusLogic_Message(enum BusLogic_MessageLevel, char *, struct BusLogic_HostAdapter *, ...); 1329 static int __init BusLogic_Setup(char *); 1330 1331 #endif /* _BUSLOGIC_H */ 1332