drivers/scsi/BusLogic.c

   1
   2 /*
   3
   4   Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
   5
   6   Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
   7
   8   This program is free software; you may redistribute and/or modify it under
   9   the terms of the GNU General Public License Version 2 as published by the
  10   Free Software Foundation.
  11
  12   This program is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
  14   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15   for complete details.
  16
  17   The author respectfully requests that any modifications to this software be
  18   sent directly to him for evaluation and testing.
  19
  20   Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
  21   advice has been invaluable, to David Gentzel, for writing the original Linux
  22   BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
  23
  24   Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
  25   Manager available as freely redistributable source code.
  26
  27 */
  28
  29 #define BusLogic_DriverVersion          "2.1.16"
  30 #define BusLogic_DriverDate             "18 July 2002"
  31
  32 #include <linux/module.h>
  33 #include <linux/init.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/types.h>
  36 #include <linux/blkdev.h>
  37 #include <linux/delay.h>
  38 #include <linux/ioport.h>
  39 #include <linux/mm.h>
  40 #include <linux/stat.h>
  41 #include <linux/pci.h>
  42 #include <linux/spinlock.h>
  43 #include <linux/jiffies.h>
  44 #include <linux/dma-mapping.h>
  45 #include <scsi/scsicam.h>
  46
  47 #include <asm/dma.h>
  48 #include <asm/io.h>
  49 #include <asm/system.h>
  50
  51 #include <scsi/scsi.h>
  52 #include <scsi/scsi_cmnd.h>
  53 #include <scsi/scsi_device.h>
  54 #include <scsi/scsi_host.h>
  55 #include <scsi/scsi_tcq.h>
  56 #include "BusLogic.h"
  57 #include "FlashPoint.c"
  58
  59 #ifndef FAILURE
  60 #define FAILURE (-1)
  61 #endif
  62
  63 static struct scsi_host_template Bus_Logic_template;
  64
  65 /*
  66   BusLogic_DriverOptionsCount is a count of the number of BusLogic Driver
  67   Options specifications provided via the Linux Kernel Command Line or via
  68   the Loadable Kernel Module Installation Facility.
  69 */
  70
  71 static int BusLogic_DriverOptionsCount;
  72
  73
  74 /*
  75   BusLogic_DriverOptions is an array of Driver Options structures representing
  76   BusLogic Driver Options specifications provided via the Linux Kernel Command
  77   Line or via the Loadable Kernel Module Installation Facility.
  78 */
  79
  80 static struct BusLogic_DriverOptions BusLogic_DriverOptions[BusLogic_MaxHostAdapters];
  81
  82
  83 /*
  84   BusLogic can be assigned a string by insmod.
  85 */
  86
  87 MODULE_LICENSE("GPL");
  88 #ifdef MODULE
  89 static char *BusLogic;
  90 module_param(BusLogic, charp, 0);
  91 #endif
  92
  93
  94 /*
  95   BusLogic_ProbeOptions is a set of Probe Options to be applied across
  96   all BusLogic Host Adapters.
  97 */
  98
  99 static struct BusLogic_ProbeOptions BusLogic_ProbeOptions;
 100
 101
 102 /*
 103   BusLogic_GlobalOptions is a set of Global Options to be applied across
 104   all BusLogic Host Adapters.
 105 */
 106
 107 static struct BusLogic_GlobalOptions BusLogic_GlobalOptions;
 108
 109 static LIST_HEAD(BusLogic_host_list);
 110
 111 /*
 112   BusLogic_ProbeInfoCount is the number of entries in BusLogic_ProbeInfoList.
 113 */
 114
 115 static int BusLogic_ProbeInfoCount;
 116
 117
 118 /*
 119   BusLogic_ProbeInfoList is the list of I/O Addresses and Bus Probe Information
 120   to be checked for potential BusLogic Host Adapters.  It is initialized by
 121   interrogating the PCI Configuration Space on PCI machines as well as from the
 122   list of standard BusLogic I/O Addresses.
 123 */
 124
 125 static struct BusLogic_ProbeInfo *BusLogic_ProbeInfoList;
 126
 127
 128 /*
 129   BusLogic_CommandFailureReason holds a string identifying the reason why a
 130   call to BusLogic_Command failed.  It is only non-NULL when BusLogic_Command
 131   returns a failure code.
 132 */
 133
 134 static char *BusLogic_CommandFailureReason;
 135
 136 /*
 137   BusLogic_AnnounceDriver announces the Driver Version and Date, Author's
 138   Name, Copyright Notice, and Electronic Mail Address.
 139 */
 140
 141 static void BusLogic_AnnounceDriver(struct BusLogic_HostAdapter *HostAdapter)
 142 {
 143         BusLogic_Announce("***** BusLogic SCSI Driver Version " BusLogic_DriverVersion " of " BusLogic_DriverDate " *****\n", HostAdapter);
 144         BusLogic_Announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", HostAdapter);
 145 }
 146
 147
 148 /*
 149   BusLogic_DriverInfo returns the Host Adapter Name to identify this SCSI
 150   Driver and Host Adapter.
 151 */
 152
 153 static const char *BusLogic_DriverInfo(struct Scsi_Host *Host)
 154 {
 155         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata;
 156         return HostAdapter->FullModelName;
 157 }
 158
 159 /*
 160   BusLogic_InitializeCCBs initializes a group of Command Control Blocks (CCBs)
 161   for Host Adapter from the BlockSize bytes located at BlockPointer.  The newly
 162   created CCBs are added to Host Adapter's free list.
 163 */
 164
 165 static void BusLogic_InitializeCCBs(struct BusLogic_HostAdapter *HostAdapter, void *BlockPointer, int BlockSize, dma_addr_t BlockPointerHandle)
 166 {
 167         struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) BlockPointer;
 168         unsigned int offset = 0;
 169         memset(BlockPointer, 0, BlockSize);
 170         CCB->AllocationGroupHead = BlockPointerHandle;
 171         CCB->AllocationGroupSize = BlockSize;
 172         while ((BlockSize -= sizeof(struct BusLogic_CCB)) >= 0) {
 173                 CCB->Status = BusLogic_CCB_Free;
 174                 CCB->HostAdapter = HostAdapter;
 175                 CCB->DMA_Handle = (u32) BlockPointerHandle + offset;
 176                 if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
 177                         CCB->CallbackFunction = BusLogic_QueueCompletedCCB;
 178                         CCB->BaseAddress = HostAdapter->FlashPointInfo.BaseAddress;
 179                 }
 180                 CCB->Next = HostAdapter->Free_CCBs;
 181                 CCB->NextAll = HostAdapter->All_CCBs;
 182                 HostAdapter->Free_CCBs = CCB;
 183                 HostAdapter->All_CCBs = CCB;
 184                 HostAdapter->AllocatedCCBs++;
 185                 CCB++;
 186                 offset += sizeof(struct BusLogic_CCB);
 187         }
 188 }
 189
 190
 191 /*
 192   BusLogic_CreateInitialCCBs allocates the initial CCBs for Host Adapter.
 193 */
 194
 195 static bool __init BusLogic_CreateInitialCCBs(struct BusLogic_HostAdapter *HostAdapter)
 196 {
 197         int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB);
 198         void *BlockPointer;
 199         dma_addr_t BlockPointerHandle;
 200         while (HostAdapter->AllocatedCCBs < HostAdapter->InitialCCBs) {
 201                 BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle);
 202                 if (BlockPointer == NULL) {
 203                         BusLogic_Error("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", HostAdapter);
 204                         return false;
 205                 }
 206                 BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle);
 207         }
 208         return true;
 209 }
 210
 211
 212 /*
 213   BusLogic_DestroyCCBs deallocates the CCBs for Host Adapter.
 214 */
 215
 216 static void BusLogic_DestroyCCBs(struct BusLogic_HostAdapter *HostAdapter)
 217 {
 218         struct BusLogic_CCB *NextCCB = HostAdapter->All_CCBs, *CCB, *Last_CCB = NULL;
 219         HostAdapter->All_CCBs = NULL;
 220         HostAdapter->Free_CCBs = NULL;
 221         while ((CCB = NextCCB) != NULL) {
 222                 NextCCB = CCB->NextAll;
 223                 if (CCB->AllocationGroupHead) {
 224                         if (Last_CCB)
 225                                 pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead);
 226                         Last_CCB = CCB;
 227                 }
 228         }
 229         if (Last_CCB)
 230                 pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead);
 231 }
 232
 233
 234 /*
 235   BusLogic_CreateAdditionalCCBs allocates Additional CCBs for Host Adapter.  If
 236   allocation fails and there are no remaining CCBs available, the Driver Queue
 237   Depth is decreased to a known safe value to avoid potential deadlocks when
 238   multiple host adapters share the same IRQ Channel.
 239 */
 240
 241 static void BusLogic_CreateAdditionalCCBs(struct BusLogic_HostAdapter *HostAdapter, int AdditionalCCBs, bool SuccessMessageP)
 242 {
 243         int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB);
 244         int PreviouslyAllocated = HostAdapter->AllocatedCCBs;
 245         void *BlockPointer;
 246         dma_addr_t BlockPointerHandle;
 247         if (AdditionalCCBs <= 0)
 248                 return;
 249         while (HostAdapter->AllocatedCCBs - PreviouslyAllocated < AdditionalCCBs) {
 250                 BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle);
 251                 if (BlockPointer == NULL)
 252                         break;
 253                 BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle);
 254         }
 255         if (HostAdapter->AllocatedCCBs > PreviouslyAllocated) {
 256                 if (SuccessMessageP)
 257                         BusLogic_Notice("Allocated %d additional CCBs (total now %d)\n", HostAdapter, HostAdapter->AllocatedCCBs - PreviouslyAllocated, HostAdapter->AllocatedCCBs);
 258                 return;
 259         }
 260         BusLogic_Notice("Failed to allocate additional CCBs\n", HostAdapter);
 261         if (HostAdapter->DriverQueueDepth > HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount) {
 262                 HostAdapter->DriverQueueDepth = HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount;
 263                 HostAdapter->SCSI_Host->can_queue = HostAdapter->DriverQueueDepth;
 264         }
 265 }
 266
 267 /*
 268   BusLogic_AllocateCCB allocates a CCB from Host Adapter's free list,
 269   allocating more memory from the Kernel if necessary.  The Host Adapter's
 270   Lock should already have been acquired by the caller.
 271 */
 272
 273 static struct BusLogic_CCB *BusLogic_AllocateCCB(struct BusLogic_HostAdapter
 274                                                  *HostAdapter)
 275 {
 276         static unsigned long SerialNumber = 0;
 277         struct BusLogic_CCB *CCB;
 278         CCB = HostAdapter->Free_CCBs;
 279         if (CCB != NULL) {
 280                 CCB->SerialNumber = ++SerialNumber;
 281                 HostAdapter->Free_CCBs = CCB->Next;
 282                 CCB->Next = NULL;
 283                 if (HostAdapter->Free_CCBs == NULL)
 284                         BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true);
 285                 return CCB;
 286         }
 287         BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true);
 288         CCB = HostAdapter->Free_CCBs;
 289         if (CCB == NULL)
 290                 return NULL;
 291         CCB->SerialNumber = ++SerialNumber;
 292         HostAdapter->Free_CCBs = CCB->Next;
 293         CCB->Next = NULL;
 294         return CCB;
 295 }
 296
 297
 298 /*
 299   BusLogic_DeallocateCCB deallocates a CCB, returning it to the Host Adapter's
 300   free list.  The Host Adapter's Lock should already have been acquired by the
 301   caller.
 302 */
 303
 304 static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB)
 305 {
 306         struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter;
 307         struct scsi_cmnd *cmd = CCB->Command;
 308
 309         if (cmd->use_sg != 0) {
 310                 pci_unmap_sg(HostAdapter->PCI_Device,
 311                                 (struct scatterlist *)cmd->request_buffer,
 312                                 cmd->use_sg, cmd->sc_data_direction);
 313         } else if (cmd->request_bufflen != 0) {
 314                 pci_unmap_single(HostAdapter->PCI_Device, CCB->DataPointer,
 315                                 CCB->DataLength, cmd->sc_data_direction);
 316         }
 317         pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer,
 318                         CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
 319
 320         CCB->Command = NULL;
 321         CCB->Status = BusLogic_CCB_Free;
 322         CCB->Next = HostAdapter->Free_CCBs;
 323         HostAdapter->Free_CCBs = CCB;
 324 }
 325
 326
 327 /*
 328   BusLogic_Command sends the command OperationCode to HostAdapter, optionally
 329   providing ParameterLength bytes of ParameterData and receiving at most
 330   ReplyLength bytes of ReplyData; any excess reply data is received but
 331   discarded.
 332
 333   On success, this function returns the number of reply bytes read from
 334   the Host Adapter (including any discarded data); on failure, it returns
 335   -1 if the command was invalid, or -2 if a timeout occurred.
 336
 337   BusLogic_Command is called exclusively during host adapter detection and
 338   initialization, so performance and latency are not critical, and exclusive
 339   access to the Host Adapter hardware is assumed.  Once the host adapter and
 340   driver are initialized, the only Host Adapter command that is issued is the
 341   single byte Execute Mailbox Command operation code, which does not require
 342   waiting for the Host Adapter Ready bit to be set in the Status Register.
 343 */
 344
 345 static int BusLogic_Command(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_OperationCode OperationCode, void *ParameterData, int ParameterLength, void *ReplyData, int ReplyLength)
 346 {
 347         unsigned char *ParameterPointer = (unsigned char *) ParameterData;
 348         unsigned char *ReplyPointer = (unsigned char *) ReplyData;
 349         union BusLogic_StatusRegister StatusRegister;
 350         union BusLogic_InterruptRegister InterruptRegister;
 351         unsigned long ProcessorFlags = 0;
 352         int ReplyBytes = 0, Result;
 353         long TimeoutCounter;
 354         /*
 355            Clear out the Reply Data if provided.
 356          */
 357         if (ReplyLength > 0)
 358                 memset(ReplyData, 0, ReplyLength);
 359         /*
 360            If the IRQ Channel has not yet been acquired, then interrupts must be
 361            disabled while issuing host adapter commands since a Command Complete
 362            interrupt could occur if the IRQ Channel was previously enabled by another
 363            BusLogic Host Adapter or another driver sharing the same IRQ Channel.
 364          */
 365         if (!HostAdapter->IRQ_ChannelAcquired)
 366                 local_irq_save(ProcessorFlags);
 367         /*
 368            Wait for the Host Adapter Ready bit to be set and the Command/Parameter
 369            Register Busy bit to be reset in the Status Register.
 370          */
 371         TimeoutCounter = 10000;
 372         while (--TimeoutCounter >= 0) {
 373                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 374                 if (StatusRegister.sr.HostAdapterReady && !StatusRegister.sr.CommandParameterRegisterBusy)
 375                         break;
 376                 udelay(100);
 377         }
 378         if (TimeoutCounter < 0) {
 379                 BusLogic_CommandFailureReason = "Timeout waiting for Host Adapter Ready";
 380                 Result = -2;
 381                 goto Done;
 382         }
 383         /*
 384            Write the OperationCode to the Command/Parameter Register.
 385          */
 386         HostAdapter->HostAdapterCommandCompleted = false;
 387         BusLogic_WriteCommandParameterRegister(HostAdapter, OperationCode);
 388         /*
 389            Write any additional Parameter Bytes.
 390          */
 391         TimeoutCounter = 10000;
 392         while (ParameterLength > 0 && --TimeoutCounter >= 0) {
 393                 /*
 394                    Wait 100 microseconds to give the Host Adapter enough time to determine
 395                    whether the last value written to the Command/Parameter Register was
 396                    valid or not.  If the Command Complete bit is set in the Interrupt
 397                    Register, then the Command Invalid bit in the Status Register will be
 398                    reset if the Operation Code or Parameter was valid and the command
 399                    has completed, or set if the Operation Code or Parameter was invalid.
 400                    If the Data In Register Ready bit is set in the Status Register, then
 401                    the Operation Code was valid, and data is waiting to be read back
 402                    from the Host Adapter.  Otherwise, wait for the Command/Parameter
 403                    Register Busy bit in the Status Register to be reset.
 404                  */
 405                 udelay(100);
 406                 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
 407                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 408                 if (InterruptRegister.ir.CommandComplete)
 409                         break;
 410                 if (HostAdapter->HostAdapterCommandCompleted)
 411                         break;
 412                 if (StatusRegister.sr.DataInRegisterReady)
 413                         break;
 414                 if (StatusRegister.sr.CommandParameterRegisterBusy)
 415                         continue;
 416                 BusLogic_WriteCommandParameterRegister(HostAdapter, *ParameterPointer++);
 417                 ParameterLength--;
 418         }
 419         if (TimeoutCounter < 0) {
 420                 BusLogic_CommandFailureReason = "Timeout waiting for Parameter Acceptance";
 421                 Result = -2;
 422                 goto Done;
 423         }
 424         /*
 425            The Modify I/O Address command does not cause a Command Complete Interrupt.
 426          */
 427         if (OperationCode == BusLogic_ModifyIOAddress) {
 428                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 429                 if (StatusRegister.sr.CommandInvalid) {
 430                         BusLogic_CommandFailureReason = "Modify I/O Address Invalid";
 431                         Result = -1;
 432                         goto Done;
 433                 }
 434                 if (BusLogic_GlobalOptions.TraceConfiguration)
 435                         BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: " "(Modify I/O Address)\n", HostAdapter, OperationCode, StatusRegister.All);
 436                 Result = 0;
 437                 goto Done;
 438         }
 439         /*
 440            Select an appropriate timeout value for awaiting command completion.
 441          */
 442         switch (OperationCode) {
 443         case BusLogic_InquireInstalledDevicesID0to7:
 444         case BusLogic_InquireInstalledDevicesID8to15:
 445         case BusLogic_InquireTargetDevices:
 446                 /* Approximately 60 seconds. */
 447                 TimeoutCounter = 60 * 10000;
 448                 break;
 449         default:
 450                 /* Approximately 1 second. */
 451                 TimeoutCounter = 10000;
 452                 break;
 453         }
 454         /*
 455            Receive any Reply Bytes, waiting for either the Command Complete bit to
 456            be set in the Interrupt Register, or for the Interrupt Handler to set the
 457            Host Adapter Command Completed bit in the Host Adapter structure.
 458          */
 459         while (--TimeoutCounter >= 0) {
 460                 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
 461                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 462                 if (InterruptRegister.ir.CommandComplete)
 463                         break;
 464                 if (HostAdapter->HostAdapterCommandCompleted)
 465                         break;
 466                 if (StatusRegister.sr.DataInRegisterReady) {
 467                         if (++ReplyBytes <= ReplyLength)
 468                                 *ReplyPointer++ = BusLogic_ReadDataInRegister(HostAdapter);
 469                         else
 470                                 BusLogic_ReadDataInRegister(HostAdapter);
 471                 }
 472                 if (OperationCode == BusLogic_FetchHostAdapterLocalRAM && StatusRegister.sr.HostAdapterReady)
 473                         break;
 474                 udelay(100);
 475         }
 476         if (TimeoutCounter < 0) {
 477                 BusLogic_CommandFailureReason = "Timeout waiting for Command Complete";
 478                 Result = -2;
 479                 goto Done;
 480         }
 481         /*
 482            Clear any pending Command Complete Interrupt.
 483          */
 484         BusLogic_InterruptReset(HostAdapter);
 485         /*
 486            Provide tracing information if requested.
 487          */
 488         if (BusLogic_GlobalOptions.TraceConfiguration) {
 489                 int i;
 490                 BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: %2d ==> %2d:", HostAdapter, OperationCode, StatusRegister.All, ReplyLength, ReplyBytes);
 491                 if (ReplyLength > ReplyBytes)
 492                         ReplyLength = ReplyBytes;
 493                 for (i = 0; i < ReplyLength; i++)
 494                         BusLogic_Notice(" %02X", HostAdapter, ((unsigned char *) ReplyData)[i]);
 495                 BusLogic_Notice("\n", HostAdapter);
 496         }
 497         /*
 498            Process Command Invalid conditions.
 499          */
 500         if (StatusRegister.sr.CommandInvalid) {
 501                 /*
 502                    Some early BusLogic Host Adapters may not recover properly from
 503                    a Command Invalid condition, so if this appears to be the case,
 504                    a Soft Reset is issued to the Host Adapter.  Potentially invalid
 505                    commands are never attempted after Mailbox Initialization is
 506                    performed, so there should be no Host Adapter state lost by a
 507                    Soft Reset in response to a Command Invalid condition.
 508                  */
 509                 udelay(1000);
 510                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 511                 if (StatusRegister.sr.CommandInvalid ||
 512                     StatusRegister.sr.Reserved ||
 513                     StatusRegister.sr.DataInRegisterReady ||
 514                     StatusRegister.sr.CommandParameterRegisterBusy || !StatusRegister.sr.HostAdapterReady || !StatusRegister.sr.InitializationRequired || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.DiagnosticFailure) {
 515                         BusLogic_SoftReset(HostAdapter);
 516                         udelay(1000);
 517                 }
 518                 BusLogic_CommandFailureReason = "Command Invalid";
 519                 Result = -1;
 520                 goto Done;
 521         }
 522         /*
 523            Handle Excess Parameters Supplied conditions.
 524          */
 525         if (ParameterLength > 0) {
 526                 BusLogic_CommandFailureReason = "Excess Parameters Supplied";
 527                 Result = -1;
 528                 goto Done;
 529         }
 530         /*
 531            Indicate the command completed successfully.
 532          */
 533         BusLogic_CommandFailureReason = NULL;
 534         Result = ReplyBytes;
 535         /*
 536            Restore the interrupt status if necessary and return.
 537          */
 538       Done:
 539         if (!HostAdapter->IRQ_ChannelAcquired)
 540                 local_irq_restore(ProcessorFlags);
 541         return Result;
 542 }
 543
 544
 545 /*
 546   BusLogic_AppendProbeAddressISA appends a single ISA I/O Address to the list
 547   of I/O Address and Bus Probe Information to be checked for potential BusLogic
 548   Host Adapters.
 549 */
 550
 551 static void __init BusLogic_AppendProbeAddressISA(unsigned long IO_Address)
 552 {
 553         struct BusLogic_ProbeInfo *ProbeInfo;
 554         if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters)
 555                 return;
 556         ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
 557         ProbeInfo->HostAdapterType = BusLogic_MultiMaster;
 558         ProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus;
 559         ProbeInfo->IO_Address = IO_Address;
 560         ProbeInfo->PCI_Device = NULL;
 561 }
 562
 563
 564 /*
 565   BusLogic_InitializeProbeInfoListISA initializes the list of I/O Address and
 566   Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
 567   only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
 568 */
 569
 570 static void __init BusLogic_InitializeProbeInfoListISA(struct BusLogic_HostAdapter
 571                                                        *PrototypeHostAdapter)
 572 {
 573         /*
 574            If BusLogic Driver Options specifications requested that ISA Bus Probes
 575            be inhibited, do not proceed further.
 576          */
 577         if (BusLogic_ProbeOptions.NoProbeISA)
 578                 return;
 579         /*
 580            Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
 581          */
 582         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0)
 583                 BusLogic_AppendProbeAddressISA(0x330);
 584         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0)
 585                 BusLogic_AppendProbeAddressISA(0x334);
 586         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0)
 587                 BusLogic_AppendProbeAddressISA(0x230);
 588         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0)
 589                 BusLogic_AppendProbeAddressISA(0x234);
 590         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0)
 591                 BusLogic_AppendProbeAddressISA(0x130);
 592         if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0)
 593                 BusLogic_AppendProbeAddressISA(0x134);
 594 }
 595
 596
 597 #ifdef CONFIG_PCI
 598
 599
 600 /*
 601   BusLogic_SortProbeInfo sorts a section of BusLogic_ProbeInfoList in order
 602   of increasing PCI Bus and Device Number.
 603 */
 604
 605 static void __init BusLogic_SortProbeInfo(struct BusLogic_ProbeInfo *ProbeInfoList, int ProbeInfoCount)
 606 {
 607         int LastInterchange = ProbeInfoCount - 1, Bound, j;
 608         while (LastInterchange > 0) {
 609                 Bound = LastInterchange;
 610                 LastInterchange = 0;
 611                 for (j = 0; j < Bound; j++) {
 612                         struct BusLogic_ProbeInfo *ProbeInfo1 = &ProbeInfoList[j];
 613                         struct BusLogic_ProbeInfo *ProbeInfo2 = &ProbeInfoList[j + 1];
 614                         if (ProbeInfo1->Bus > ProbeInfo2->Bus || (ProbeInfo1->Bus == ProbeInfo2->Bus && (ProbeInfo1->Device > ProbeInfo2->Device))) {
 615                                 struct BusLogic_ProbeInfo TempProbeInfo;
 616                                 memcpy(&TempProbeInfo, ProbeInfo1, sizeof(struct BusLogic_ProbeInfo));
 617                                 memcpy(ProbeInfo1, ProbeInfo2, sizeof(struct BusLogic_ProbeInfo));
 618                                 memcpy(ProbeInfo2, &TempProbeInfo, sizeof(struct BusLogic_ProbeInfo));
 619                                 LastInterchange = j;
 620                         }
 621                 }
 622         }
 623 }
 624
 625
 626 /*
 627   BusLogic_InitializeMultiMasterProbeInfo initializes the list of I/O Address
 628   and Bus Probe Information to be checked for potential BusLogic MultiMaster
 629   SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
 630   machines as well as from the list of standard BusLogic MultiMaster ISA
 631   I/O Addresses.  It returns the number of PCI MultiMaster Host Adapters found.
 632 */
 633
 634 static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAdapter
 635                                                           *PrototypeHostAdapter)
 636 {
 637         struct BusLogic_ProbeInfo *PrimaryProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount];
 638         int NonPrimaryPCIMultiMasterIndex = BusLogic_ProbeInfoCount + 1;
 639         int NonPrimaryPCIMultiMasterCount = 0, PCIMultiMasterCount = 0;
 640         bool ForceBusDeviceScanningOrder = false;
 641         bool ForceBusDeviceScanningOrderChecked = false;
 642         bool StandardAddressSeen[6];
 643         struct pci_dev *PCI_Device = NULL;
 644         int i;
 645         if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters)
 646                 return 0;
 647         BusLogic_ProbeInfoCount++;
 648         for (i = 0; i < 6; i++)
 649                 StandardAddressSeen[i] = false;
 650         /*
 651            Iterate over the MultiMaster PCI Host Adapters.  For each enumerated host
 652            adapter, determine whether its ISA Compatible I/O Port is enabled and if
 653            so, whether it is assigned the Primary I/O Address.  A host adapter that is
 654            assigned the Primary I/O Address will always be the preferred boot device.
 655            The MultiMaster BIOS will first recognize a host adapter at the Primary I/O
 656            Address, then any other PCI host adapters, and finally any host adapters
 657            located at the remaining standard ISA I/O Addresses.  When a PCI host
 658            adapter is found with its ISA Compatible I/O Port enabled, a command is
 659            issued to disable the ISA Compatible I/O Port, and it is noted that the
 660            particular standard ISA I/O Address need not be probed.
 661          */
 662         PrimaryProbeInfo->IO_Address = 0;
 663         while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, PCI_Device)) != NULL) {
 664                 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
 665                 struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation;
 666                 enum BusLogic_ISACompatibleIOPort ModifyIOAddressRequest;
 667                 unsigned char Bus;
 668                 unsigned char Device;
 669                 unsigned int IRQ_Channel;
 670                 unsigned long BaseAddress0;
 671                 unsigned long BaseAddress1;
 672                 unsigned long IO_Address;
 673                 unsigned long PCI_Address;
 674
 675                 if (pci_enable_device(PCI_Device))
 676                         continue;
 677
 678                 if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK ))
 679                         continue;
 680
 681                 Bus = PCI_Device->bus->number;
 682                 Device = PCI_Device->devfn >> 3;
 683                 IRQ_Channel = PCI_Device->irq;
 684                 IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0);
 685                 PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1);
 686
 687                 if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) {
 688                         BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, BaseAddress0);
 689                         BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
 690                         continue;
 691                 }
 692                 if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) {
 693                         BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, BaseAddress1);
 694                         BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address);
 695                         continue;
 696                 }
 697                 if (IRQ_Channel == 0) {
 698                         BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, IRQ_Channel);
 699                         BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
 700                         continue;
 701                 }
 702                 if (BusLogic_GlobalOptions.TraceProbe) {
 703                         BusLogic_Notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL);
 704                         BusLogic_Notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, Bus, Device, IO_Address, PCI_Address);
 705                 }
 706                 /*
 707                    Issue the Inquire PCI Host Adapter Information command to determine
 708                    the ISA Compatible I/O Port.  If the ISA Compatible I/O Port is
 709                    known and enabled, note that the particular Standard ISA I/O
 710                    Address should not be probed.
 711                  */
 712                 HostAdapter->IO_Address = IO_Address;
 713                 BusLogic_InterruptReset(HostAdapter);
 714                 if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation))
 715                     == sizeof(PCIHostAdapterInformation)) {
 716                         if (PCIHostAdapterInformation.ISACompatibleIOPort < 6)
 717                                 StandardAddressSeen[PCIHostAdapterInformation.ISACompatibleIOPort] = true;
 718                 } else
 719                         PCIHostAdapterInformation.ISACompatibleIOPort = BusLogic_IO_Disable;
 720                 /*
 721                  * Issue the Modify I/O Address command to disable the ISA Compatible
 722                  * I/O Port.  On PCI Host Adapters, the Modify I/O Address command
 723                  * allows modification of the ISA compatible I/O Address that the Host
 724                  * Adapter responds to; it does not affect the PCI compliant I/O Address
 725                  * assigned at system initialization.
 726                  */
 727                 ModifyIOAddressRequest = BusLogic_IO_Disable;
 728                 BusLogic_Command(HostAdapter, BusLogic_ModifyIOAddress, &ModifyIOAddressRequest, sizeof(ModifyIOAddressRequest), NULL, 0);
 729                 /*
 730                    For the first MultiMaster Host Adapter enumerated, issue the Fetch
 731                    Host Adapter Local RAM command to read byte 45 of the AutoSCSI area,
 732                    for the setting of the "Use Bus And Device # For PCI Scanning Seq."
 733                    option.  Issue the Inquire Board ID command since this option is
 734                    only valid for the BT-948/958/958D.
 735                  */
 736                 if (!ForceBusDeviceScanningOrderChecked) {
 737                         struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
 738                         struct BusLogic_AutoSCSIByte45 AutoSCSIByte45;
 739                         struct BusLogic_BoardID BoardID;
 740                         FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset + 45;
 741                         FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIByte45);
 742                         BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIByte45, sizeof(AutoSCSIByte45));
 743                         BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID));
 744                         if (BoardID.FirmwareVersion1stDigit == '5')
 745                                 ForceBusDeviceScanningOrder = AutoSCSIByte45.ForceBusDeviceScanningOrder;
 746                         ForceBusDeviceScanningOrderChecked = true;
 747                 }
 748                 /*
 749                    Determine whether this MultiMaster Host Adapter has its ISA
 750                    Compatible I/O Port enabled and is assigned the Primary I/O Address.
 751                    If it does, then it is the Primary MultiMaster Host Adapter and must
 752                    be recognized first.  If it does not, then it is added to the list
 753                    for probing after any Primary MultiMaster Host Adapter is probed.
 754                  */
 755                 if (PCIHostAdapterInformation.ISACompatibleIOPort == BusLogic_IO_330) {
 756                         PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster;
 757                         PrimaryProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
 758                         PrimaryProbeInfo->IO_Address = IO_Address;
 759                         PrimaryProbeInfo->PCI_Address = PCI_Address;
 760                         PrimaryProbeInfo->Bus = Bus;
 761                         PrimaryProbeInfo->Device = Device;
 762                         PrimaryProbeInfo->IRQ_Channel = IRQ_Channel;
 763                         PrimaryProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
 764                         PCIMultiMasterCount++;
 765                 } else if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) {
 766                         struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
 767                         ProbeInfo->HostAdapterType = BusLogic_MultiMaster;
 768                         ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
 769                         ProbeInfo->IO_Address = IO_Address;
 770                         ProbeInfo->PCI_Address = PCI_Address;
 771                         ProbeInfo->Bus = Bus;
 772                         ProbeInfo->Device = Device;
 773                         ProbeInfo->IRQ_Channel = IRQ_Channel;
 774                         ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
 775                         NonPrimaryPCIMultiMasterCount++;
 776                         PCIMultiMasterCount++;
 777                 } else
 778                         BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL);
 779         }
 780         /*
 781            If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." option is ON
 782            for the first enumerated MultiMaster Host Adapter, and if that host adapter
 783            is a BT-948/958/958D, then the MultiMaster BIOS will recognize MultiMaster
 784            Host Adapters in the order of increasing PCI Bus and Device Number.  In
 785            that case, sort the probe information into the same order the BIOS uses.
 786            If this option is OFF, then the MultiMaster BIOS will recognize MultiMaster
 787            Host Adapters in the order they are enumerated by the PCI BIOS, and hence
 788            no sorting is necessary.
 789          */
 790         if (ForceBusDeviceScanningOrder)
 791                 BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[NonPrimaryPCIMultiMasterIndex], NonPrimaryPCIMultiMasterCount);
 792         /*
 793            If no PCI MultiMaster Host Adapter is assigned the Primary I/O Address,
 794            then the Primary I/O Address must be probed explicitly before any PCI
 795            host adapters are probed.
 796          */
 797         if (!BusLogic_ProbeOptions.NoProbeISA)
 798                 if (PrimaryProbeInfo->IO_Address == 0 && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0)) {
 799                         PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster;
 800                         PrimaryProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus;
 801                         PrimaryProbeInfo->IO_Address = 0x330;
 802                 }
 803         /*
 804            Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
 805            omitting the Primary I/O Address which has already been handled.
 806          */
 807         if (!BusLogic_ProbeOptions.NoProbeISA) {
 808                 if (!StandardAddressSeen[1] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0))
 809                         BusLogic_AppendProbeAddressISA(0x334);
 810                 if (!StandardAddressSeen[2] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0))
 811                         BusLogic_AppendProbeAddressISA(0x230);
 812                 if (!StandardAddressSeen[3] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0))
 813                         BusLogic_AppendProbeAddressISA(0x234);
 814                 if (!StandardAddressSeen[4] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0))
 815                         BusLogic_AppendProbeAddressISA(0x130);
 816                 if (!StandardAddressSeen[5] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0))
 817                         BusLogic_AppendProbeAddressISA(0x134);
 818         }
 819         /*
 820            Iterate over the older non-compliant MultiMaster PCI Host Adapters,
 821            noting the PCI bus location and assigned IRQ Channel.
 822          */
 823         PCI_Device = NULL;
 824         while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, PCI_Device)) != NULL) {
 825                 unsigned char Bus;
 826                 unsigned char Device;
 827                 unsigned int IRQ_Channel;
 828                 unsigned long IO_Address;
 829
 830                 if (pci_enable_device(PCI_Device))
 831                         continue;
 832
 833                 if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK))
 834                         continue;
 835
 836                 Bus = PCI_Device->bus->number;
 837                 Device = PCI_Device->devfn >> 3;
 838                 IRQ_Channel = PCI_Device->irq;
 839                 IO_Address = pci_resource_start(PCI_Device, 0);
 840
 841                 if (IO_Address == 0 || IRQ_Channel == 0)
 842                         continue;
 843                 for (i = 0; i < BusLogic_ProbeInfoCount; i++) {
 844                         struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[i];
 845                         if (ProbeInfo->IO_Address == IO_Address && ProbeInfo->HostAdapterType == BusLogic_MultiMaster) {
 846                                 ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
 847                                 ProbeInfo->PCI_Address = 0;
 848                                 ProbeInfo->Bus = Bus;
 849                                 ProbeInfo->Device = Device;
 850                                 ProbeInfo->IRQ_Channel = IRQ_Channel;
 851                                 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
 852                                 break;
 853                         }
 854                 }
 855         }
 856         return PCIMultiMasterCount;
 857 }
 858
 859
 860 /*
 861   BusLogic_InitializeFlashPointProbeInfo initializes the list of I/O Address
 862   and Bus Probe Information to be checked for potential BusLogic FlashPoint
 863   Host Adapters by interrogating the PCI Configuration Space.  It returns the
 864   number of FlashPoint Host Adapters found.
 865 */
 866
 867 static int __init BusLogic_InitializeFlashPointProbeInfo(struct BusLogic_HostAdapter
 868                                                          *PrototypeHostAdapter)
 869 {
 870         int FlashPointIndex = BusLogic_ProbeInfoCount, FlashPointCount = 0;
 871         struct pci_dev *PCI_Device = NULL;
 872         /*
 873            Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
 874          */
 875         while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, PCI_Device)) != NULL) {
 876                 unsigned char Bus;
 877                 unsigned char Device;
 878                 unsigned int IRQ_Channel;
 879                 unsigned long BaseAddress0;
 880                 unsigned long BaseAddress1;
 881                 unsigned long IO_Address;
 882                 unsigned long PCI_Address;
 883
 884                 if (pci_enable_device(PCI_Device))
 885                         continue;
 886
 887                 if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK))
 888                         continue;
 889
 890                 Bus = PCI_Device->bus->number;
 891                 Device = PCI_Device->devfn >> 3;
 892                 IRQ_Channel = PCI_Device->irq;
 893                 IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0);
 894                 PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1);
 895 #ifndef CONFIG_SCSI_OMIT_FLASHPOINT
 896                 if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) {
 897                         BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, BaseAddress0);
 898                         BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
 899                         continue;
 900                 }
 901                 if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) {
 902                         BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, BaseAddress1);
 903                         BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address);
 904                         continue;
 905                 }
 906                 if (IRQ_Channel == 0) {
 907                         BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, IRQ_Channel);
 908                         BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
 909                         continue;
 910                 }
 911                 if (BusLogic_GlobalOptions.TraceProbe) {
 912                         BusLogic_Notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL);
 913                         BusLogic_Notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, Bus, Device, IO_Address, PCI_Address);
 914                 }
 915                 if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) {
 916                         struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
 917                         ProbeInfo->HostAdapterType = BusLogic_FlashPoint;
 918                         ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
 919                         ProbeInfo->IO_Address = IO_Address;
 920                         ProbeInfo->PCI_Address = PCI_Address;
 921                         ProbeInfo->Bus = Bus;
 922                         ProbeInfo->Device = Device;
 923                         ProbeInfo->IRQ_Channel = IRQ_Channel;
 924                         ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
 925                         FlashPointCount++;
 926                 } else
 927                         BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL);
 928 #else
 929                 BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, Bus, Device);
 930                 BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, IO_Address, PCI_Address, IRQ_Channel);
 931                 BusLogic_Error("BusLogic: support was omitted in this kernel " "configuration.\n", NULL);
 932 #endif
 933         }
 934         /*
 935            The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
 936            increasing PCI Bus and Device Number, so sort the probe information into
 937            the same order the BIOS uses.
 938          */
 939         BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[FlashPointIndex], FlashPointCount);
 940         return FlashPointCount;
 941 }
 942
 943
 944 /*
 945   BusLogic_InitializeProbeInfoList initializes the list of I/O Address and Bus
 946   Probe Information to be checked for potential BusLogic SCSI Host Adapters by
 947   interrogating the PCI Configuration Space on PCI machines as well as from the
 948   list of standard BusLogic MultiMaster ISA I/O Addresses.  By default, if both
 949   FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
 950   probe for FlashPoint Host Adapters first unless the BIOS primary disk is
 951   controlled by the first PCI MultiMaster Host Adapter, in which case
 952   MultiMaster Host Adapters will be probed first.  The BusLogic Driver Options
 953   specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
 954   a particular probe order.
 955 */
 956
 957 static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter
 958                                                     *PrototypeHostAdapter)
 959 {
 960         /*
 961            If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint
 962            Host Adapters; otherwise, default to the standard ISA MultiMaster probe.
 963          */
 964         if (!BusLogic_ProbeOptions.NoProbePCI) {
 965                 if (BusLogic_ProbeOptions.MultiMasterFirst) {
 966                         BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
 967                         BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
 968                 } else if (BusLogic_ProbeOptions.FlashPointFirst) {
 969                         BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
 970                         BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
 971                 } else {
 972                         int FlashPointCount = BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
 973                         int PCIMultiMasterCount = BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
 974                         if (FlashPointCount > 0 && PCIMultiMasterCount > 0) {
 975                                 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[FlashPointCount];
 976                                 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
 977                                 struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
 978                                 struct BusLogic_BIOSDriveMapByte Drive0MapByte;
 979                                 while (ProbeInfo->HostAdapterBusType != BusLogic_PCI_Bus)
 980                                         ProbeInfo++;
 981                                 HostAdapter->IO_Address = ProbeInfo->IO_Address;
 982                                 FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_BIOS_BaseOffset + BusLogic_BIOS_DriveMapOffset + 0;
 983                                 FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(Drive0MapByte);
 984                                 BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &Drive0MapByte, sizeof(Drive0MapByte));
 985                                 /*
 986                                    If the Map Byte for BIOS Drive 0 indicates that BIOS Drive 0
 987                                    is controlled by this PCI MultiMaster Host Adapter, then
 988                                    reverse the probe order so that MultiMaster Host Adapters are
 989                                    probed before FlashPoint Host Adapters.
 990                                  */
 991                                 if (Drive0MapByte.DiskGeometry != BusLogic_BIOS_Disk_Not_Installed) {
 992                                         struct BusLogic_ProbeInfo SavedProbeInfo[BusLogic_MaxHostAdapters];
 993                                         int MultiMasterCount = BusLogic_ProbeInfoCount - FlashPointCount;
 994                                         memcpy(SavedProbeInfo, BusLogic_ProbeInfoList, BusLogic_ProbeInfoCount * sizeof(struct BusLogic_ProbeInfo));
 995                                         memcpy(&BusLogic_ProbeInfoList[0], &SavedProbeInfo[FlashPointCount], MultiMasterCount * sizeof(struct BusLogic_ProbeInfo));
 996                                         memcpy(&BusLogic_ProbeInfoList[MultiMasterCount], &SavedProbeInfo[0], FlashPointCount * sizeof(struct BusLogic_ProbeInfo));
 997                                 }
 998                         }
 999                 }
1000         } else
1001                 BusLogic_InitializeProbeInfoListISA(PrototypeHostAdapter);
1002 }
1003
1004
1005 #endif                          /* CONFIG_PCI */
1006
1007
1008 /*
1009   BusLogic_Failure prints a standardized error message, and then returns false.
1010 */
1011
1012 static bool BusLogic_Failure(struct BusLogic_HostAdapter *HostAdapter, char *ErrorMessage)
1013 {
1014         BusLogic_AnnounceDriver(HostAdapter);
1015         if (HostAdapter->HostAdapterBusType == BusLogic_PCI_Bus) {
1016                 BusLogic_Error("While configuring BusLogic PCI Host Adapter at\n", HostAdapter);
1017                 BusLogic_Error("Bus %d Device %d I/O Address 0x%X PCI Address 0x%X:\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device, HostAdapter->IO_Address, HostAdapter->PCI_Address);
1018         } else
1019                 BusLogic_Error("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", HostAdapter, HostAdapter->IO_Address);
1020         BusLogic_Error("%s FAILED - DETACHING\n", HostAdapter, ErrorMessage);
1021         if (BusLogic_CommandFailureReason != NULL)
1022                 BusLogic_Error("ADDITIONAL FAILURE INFO - %s\n", HostAdapter, BusLogic_CommandFailureReason);
1023         return false;
1024 }
1025
1026
1027 /*
1028   BusLogic_ProbeHostAdapter probes for a BusLogic Host Adapter.
1029 */
1030
1031 static bool __init BusLogic_ProbeHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
1032 {
1033         union BusLogic_StatusRegister StatusRegister;
1034         union BusLogic_InterruptRegister InterruptRegister;
1035         union BusLogic_GeometryRegister GeometryRegister;
1036         /*
1037            FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1038          */
1039         if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1040                 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1041                 FlashPointInfo->BaseAddress = (u32) HostAdapter->IO_Address;
1042                 FlashPointInfo->IRQ_Channel = HostAdapter->IRQ_Channel;
1043                 FlashPointInfo->Present = false;
1044                 if (!(FlashPoint_ProbeHostAdapter(FlashPointInfo) == 0 && FlashPointInfo->Present)) {
1045                         BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device);
1046                         BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", HostAdapter, HostAdapter->IO_Address, HostAdapter->PCI_Address);
1047                         BusLogic_Error("BusLogic: Probe Function failed to validate it.\n", HostAdapter);
1048                         return false;
1049                 }
1050                 if (BusLogic_GlobalOptions.TraceProbe)
1051                         BusLogic_Notice("BusLogic_Probe(0x%X): FlashPoint Found\n", HostAdapter, HostAdapter->IO_Address);
1052                 /*
1053                    Indicate the Host Adapter Probe completed successfully.
1054                  */
1055                 return true;
1056         }
1057         /*
1058            Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1059            ports that respond, and to check the values to determine if they are from a
1060            BusLogic Host Adapter.  A nonexistent I/O port will return 0xFF, in which
1061            case there is definitely no BusLogic Host Adapter at this base I/O Address.
1062            The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1063          */
1064         StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1065         InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
1066         GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
1067         if (BusLogic_GlobalOptions.TraceProbe)
1068                 BusLogic_Notice("BusLogic_Probe(0x%X): Status 0x%02X, Interrupt 0x%02X, " "Geometry 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All, InterruptRegister.All, GeometryRegister.All);
1069         if (StatusRegister.All == 0 || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.CommandParameterRegisterBusy || StatusRegister.sr.Reserved || StatusRegister.sr.CommandInvalid || InterruptRegister.ir.Reserved != 0)
1070                 return false;
1071         /*
1072            Check the undocumented Geometry Register to test if there is an I/O port
1073            that responded.  Adaptec Host Adapters do not implement the Geometry
1074            Register, so this test helps serve to avoid incorrectly recognizing an
1075            Adaptec 1542A or 1542B as a BusLogic.  Unfortunately, the Adaptec 1542C
1076            series does respond to the Geometry Register I/O port, but it will be
1077            rejected later when the Inquire Extended Setup Information command is
1078            issued in BusLogic_CheckHostAdapter.  The AMI FastDisk Host Adapter is a
1079            BusLogic clone that implements the same interface as earlier BusLogic
1080            Host Adapters, including the undocumented commands, and is therefore
1081            supported by this driver.  However, the AMI FastDisk always returns 0x00
1082            upon reading the Geometry Register, so the extended translation option
1083            should always be left disabled on the AMI FastDisk.
1084          */
1085         if (GeometryRegister.All == 0xFF)
1086                 return false;
1087         /*
1088            Indicate the Host Adapter Probe completed successfully.
1089          */
1090         return true;
1091 }
1092
1093
1094 /*
1095   BusLogic_HardwareResetHostAdapter issues a Hardware Reset to the Host Adapter
1096   and waits for Host Adapter Diagnostics to complete.  If HardReset is true, a
1097   Hard Reset is performed which also initiates a SCSI Bus Reset.  Otherwise, a
1098   Soft Reset is performed which only resets the Host Adapter without forcing a
1099   SCSI Bus Reset.
1100 */
1101
1102 static bool BusLogic_HardwareResetHostAdapter(struct BusLogic_HostAdapter
1103                                                  *HostAdapter, bool HardReset)
1104 {
1105         union BusLogic_StatusRegister StatusRegister;
1106         int TimeoutCounter;
1107         /*
1108            FlashPoint Host Adapters are Hard Reset by the FlashPoint SCCB Manager.
1109          */
1110         if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1111                 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1112                 FlashPointInfo->HostSoftReset = !HardReset;
1113                 FlashPointInfo->ReportDataUnderrun = true;
1114                 HostAdapter->CardHandle = FlashPoint_HardwareResetHostAdapter(FlashPointInfo);
1115                 if (HostAdapter->CardHandle == FlashPoint_BadCardHandle)
1116                         return false;
1117                 /*
1118                    Indicate the Host Adapter Hard Reset completed successfully.
1119                  */
1120                 return true;
1121         }
1122         /*
1123            Issue a Hard Reset or Soft Reset Command to the Host Adapter.  The Host
1124            Adapter should respond by setting Diagnostic Active in the Status Register.
1125          */
1126         if (HardReset)
1127                 BusLogic_HardReset(HostAdapter);
1128         else
1129                 BusLogic_SoftReset(HostAdapter);
1130         /*
1131            Wait until Diagnostic Active is set in the Status Register.
1132          */
1133         TimeoutCounter = 5 * 10000;
1134         while (--TimeoutCounter >= 0) {
1135                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1136                 if (StatusRegister.sr.DiagnosticActive)
1137                         break;
1138                 udelay(100);
1139         }
1140         if (BusLogic_GlobalOptions.TraceHardwareReset)
1141                 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1142         if (TimeoutCounter < 0)
1143                 return false;
1144         /*
1145            Wait 100 microseconds to allow completion of any initial diagnostic
1146            activity which might leave the contents of the Status Register
1147            unpredictable.
1148          */
1149         udelay(100);
1150         /*
1151            Wait until Diagnostic Active is reset in the Status Register.
1152          */
1153         TimeoutCounter = 10 * 10000;
1154         while (--TimeoutCounter >= 0) {
1155                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1156                 if (!StatusRegister.sr.DiagnosticActive)
1157                         break;
1158                 udelay(100);
1159         }
1160         if (BusLogic_GlobalOptions.TraceHardwareReset)
1161                 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1162         if (TimeoutCounter < 0)
1163                 return false;
1164         /*
1165            Wait until at least one of the Diagnostic Failure, Host Adapter Ready,
1166            or Data In Register Ready bits is set in the Status Register.
1167          */
1168         TimeoutCounter = 10000;
1169         while (--TimeoutCounter >= 0) {
1170                 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1171                 if (StatusRegister.sr.DiagnosticFailure || StatusRegister.sr.HostAdapterReady || StatusRegister.sr.DataInRegisterReady)
1172                         break;
1173                 udelay(100);
1174         }
1175         if (BusLogic_GlobalOptions.TraceHardwareReset)
1176                 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1177         if (TimeoutCounter < 0)
1178                 return false;
1179         /*
1180            If Diagnostic Failure is set or Host Adapter Ready is reset, then an
1181            error occurred during the Host Adapter diagnostics.  If Data In Register
1182            Ready is set, then there is an Error Code available.
1183          */
1184         if (StatusRegister.sr.DiagnosticFailure || !StatusRegister.sr.HostAdapterReady) {
1185                 BusLogic_CommandFailureReason = NULL;
1186                 BusLogic_Failure(HostAdapter, "HARD RESET DIAGNOSTICS");
1187                 BusLogic_Error("HOST ADAPTER STATUS REGISTER = %02X\n", HostAdapter, StatusRegister.All);
1188                 if (StatusRegister.sr.DataInRegisterReady) {
1189                         unsigned char ErrorCode = BusLogic_ReadDataInRegister(HostAdapter);
1190                         BusLogic_Error("HOST ADAPTER ERROR CODE = %d\n", HostAdapter, ErrorCode);
1191                 }
1192                 return false;
1193         }
1194         /*
1195            Indicate the Host Adapter Hard Reset completed successfully.
1196          */
1197         return true;
1198 }
1199
1200
1201 /*
1202   BusLogic_CheckHostAdapter checks to be sure this really is a BusLogic
1203   Host Adapter.
1204 */
1205
1206 static bool __init BusLogic_CheckHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
1207 {
1208         struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
1209         unsigned char RequestedReplyLength;
1210         bool Result = true;
1211         /*
1212            FlashPoint Host Adapters do not require this protection.
1213          */
1214         if (BusLogic_FlashPointHostAdapterP(HostAdapter))
1215                 return true;
1216         /*
1217            Issue the Inquire Extended Setup Information command.  Only genuine
1218            BusLogic Host Adapters and true clones support this command.  Adaptec 1542C
1219            series Host Adapters that respond to the Geometry Register I/O port will
1220            fail this command.
1221          */
1222         RequestedReplyLength = sizeof(ExtendedSetupInformation);
1223         if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
1224             != sizeof(ExtendedSetupInformation))
1225                 Result = false;
1226         /*
1227            Provide tracing information if requested and return.
1228          */
1229         if (BusLogic_GlobalOptions.TraceProbe)
1230                 BusLogic_Notice("BusLogic_Check(0x%X): MultiMaster %s\n", HostAdapter, HostAdapter->IO_Address, (Result ? "Found" : "Not Found"));
1231         return Result;
1232 }
1233
1234
1235 /*
1236   BusLogic_ReadHostAdapterConfiguration reads the Configuration Information
1237   from Host Adapter and initializes the Host Adapter structure.
1238 */
1239
1240 static bool __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter
1241                                                             *HostAdapter)
1242 {
1243         struct BusLogic_BoardID BoardID;
1244         struct BusLogic_Configuration Configuration;
1245         struct BusLogic_SetupInformation SetupInformation;
1246         struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
1247         unsigned char HostAdapterModelNumber[5];
1248         unsigned char FirmwareVersion3rdDigit;
1249         unsigned char FirmwareVersionLetter;
1250         struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation;
1251         struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
1252         struct BusLogic_AutoSCSIData AutoSCSIData;
1253         union BusLogic_GeometryRegister GeometryRegister;
1254         unsigned char RequestedReplyLength;
1255         unsigned char *TargetPointer, Character;
1256         int TargetID, i;
1257         /*
1258            Configuration Information for FlashPoint Host Adapters is provided in the
1259            FlashPoint_Info structure by the FlashPoint SCCB Manager's Probe Function.
1260            Initialize fields in the Host Adapter structure from the FlashPoint_Info
1261            structure.
1262          */
1263         if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1264                 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1265                 TargetPointer = HostAdapter->ModelName;
1266                 *TargetPointer++ = 'B';
1267                 *TargetPointer++ = 'T';
1268                 *TargetPointer++ = '-';
1269                 for (i = 0; i < sizeof(FlashPointInfo->ModelNumber); i++)
1270                         *TargetPointer++ = FlashPointInfo->ModelNumber[i];
1271                 *TargetPointer++ = '\0';
1272                 strcpy(HostAdapter->FirmwareVersion, FlashPoint_FirmwareVersion);
1273                 HostAdapter->SCSI_ID = FlashPointInfo->SCSI_ID;
1274                 HostAdapter->ExtendedTranslationEnabled = FlashPointInfo->ExtendedTranslationEnabled;
1275                 HostAdapter->ParityCheckingEnabled = FlashPointInfo->ParityCheckingEnabled;
1276                 HostAdapter->BusResetEnabled = !FlashPointInfo->HostSoftReset;
1277                 HostAdapter->LevelSensitiveInterrupt = true;
1278                 HostAdapter->HostWideSCSI = FlashPointInfo->HostWideSCSI;
1279                 HostAdapter->HostDifferentialSCSI = false;
1280                 HostAdapter->HostSupportsSCAM = true;
1281                 HostAdapter->HostUltraSCSI = true;
1282                 HostAdapter->ExtendedLUNSupport = true;
1283                 HostAdapter->TerminationInfoValid = true;
1284                 HostAdapter->LowByteTerminated = FlashPointInfo->LowByteTerminated;
1285                 HostAdapter->HighByteTerminated = FlashPointInfo->HighByteTerminated;
1286                 HostAdapter->SCAM_Enabled = FlashPointInfo->SCAM_Enabled;
1287                 HostAdapter->SCAM_Level2 = FlashPointInfo->SCAM_Level2;
1288                 HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
1289                 HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
1290                 HostAdapter->MaxLogicalUnits = 32;
1291                 HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize;
1292                 HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize;
1293                 HostAdapter->DriverQueueDepth = 255;
1294                 HostAdapter->HostAdapterQueueDepth = HostAdapter->DriverQueueDepth;
1295                 HostAdapter->SynchronousPermitted = FlashPointInfo->SynchronousPermitted;
1296                 HostAdapter->FastPermitted = FlashPointInfo->FastPermitted;
1297                 HostAdapter->UltraPermitted = FlashPointInfo->UltraPermitted;
1298                 HostAdapter->WidePermitted = FlashPointInfo->WidePermitted;
1299                 HostAdapter->DisconnectPermitted = FlashPointInfo->DisconnectPermitted;
1300                 HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1301                 goto Common;
1302         }
1303         /*
1304            Issue the Inquire Board ID command.
1305          */
1306         if (BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)) != sizeof(BoardID))
1307                 return BusLogic_Failure(HostAdapter, "INQUIRE BOARD ID");
1308         /*
1309            Issue the Inquire Configuration command.
1310          */
1311         if (BusLogic_Command(HostAdapter, BusLogic_InquireConfiguration, NULL, 0, &Configuration, sizeof(Configuration))
1312             != sizeof(Configuration))
1313                 return BusLogic_Failure(HostAdapter, "INQUIRE CONFIGURATION");
1314         /*
1315            Issue the Inquire Setup Information command.
1316          */
1317         RequestedReplyLength = sizeof(SetupInformation);
1318         if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation))
1319             != sizeof(SetupInformation))
1320                 return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION");
1321         /*
1322            Issue the Inquire Extended Setup Information command.
1323          */
1324         RequestedReplyLength = sizeof(ExtendedSetupInformation);
1325         if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
1326             != sizeof(ExtendedSetupInformation))
1327                 return BusLogic_Failure(HostAdapter, "INQUIRE EXTENDED SETUP INFORMATION");
1328         /*
1329            Issue the Inquire Firmware Version 3rd Digit command.
1330          */
1331         FirmwareVersion3rdDigit = '\0';
1332         if (BoardID.FirmwareVersion1stDigit > '0')
1333                 if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersion3rdDigit, NULL, 0, &FirmwareVersion3rdDigit, sizeof(FirmwareVersion3rdDigit))
1334                     != sizeof(FirmwareVersion3rdDigit))
1335                         return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE 3RD DIGIT");
1336         /*
1337            Issue the Inquire Host Adapter Model Number command.
1338          */
1339         if (ExtendedSetupInformation.BusType == 'A' && BoardID.FirmwareVersion1stDigit == '2')
1340                 /* BusLogic BT-542B ISA 2.xx */
1341                 strcpy(HostAdapterModelNumber, "542B");
1342         else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '2' && (BoardID.FirmwareVersion2ndDigit <= '1' || (BoardID.FirmwareVersion2ndDigit == '2' && FirmwareVersion3rdDigit == '0')))
1343                 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1344                 strcpy(HostAdapterModelNumber, "742A");
1345         else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '0')
1346                 /* AMI FastDisk EISA Series 441 0.x */
1347                 strcpy(HostAdapterModelNumber, "747A");
1348         else {
1349                 RequestedReplyLength = sizeof(HostAdapterModelNumber);
1350                 if (BusLogic_Command(HostAdapter, BusLogic_InquireHostAdapterModelNumber, &RequestedReplyLength, sizeof(RequestedReplyLength), &HostAdapterModelNumber, sizeof(HostAdapterModelNumber))
1351                     != sizeof(HostAdapterModelNumber))
1352                         return BusLogic_Failure(HostAdapter, "INQUIRE HOST ADAPTER MODEL NUMBER");
1353         }
1354         /*
1355            BusLogic MultiMaster Host Adapters can be identified by their model number
1356            and the major version number of their firmware as follows:
1357
1358            5.xx       BusLogic "W" Series Host Adapters:
1359            BT-948/958/958D
1360            4.xx       BusLogic "C" Series Host Adapters:
1361            BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1362            3.xx       BusLogic "S" Series Host Adapters:
1363            BT-747S/747D/757S/757D/445S/545S/542D
1364            BT-542B/742A (revision H)
1365            2.xx       BusLogic "A" Series Host Adapters:
1366            BT-542B/742A (revision G and below)
1367            0.xx       AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1368          */
1369         /*
1370            Save the Model Name and Host Adapter Name in the Host Adapter structure.
1371          */
1372         TargetPointer = HostAdapter->ModelName;
1373         *TargetPointer++ = 'B';
1374         *TargetPointer++ = 'T';
1375         *TargetPointer++ = '-';
1376         for (i = 0; i < sizeof(HostAdapterModelNumber); i++) {
1377                 Character = HostAdapterModelNumber[i];
1378                 if (Character == ' ' || Character == '\0')
1379                         break;
1380                 *TargetPointer++ = Character;
1381         }
1382         *TargetPointer++ = '\0';
1383         /*
1384            Save the Firmware Version in the Host Adapter structure.
1385          */
1386         TargetPointer = HostAdapter->FirmwareVersion;
1387         *TargetPointer++ = BoardID.FirmwareVersion1stDigit;
1388         *TargetPointer++ = '.';
1389         *TargetPointer++ = BoardID.FirmwareVersion2ndDigit;
1390         if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0')
1391                 *TargetPointer++ = FirmwareVersion3rdDigit;
1392         *TargetPointer = '\0';
1393         /*
1394            Issue the Inquire Firmware Version Letter command.
1395          */
1396         if (strcmp(HostAdapter->FirmwareVersion, "3.3") >= 0) {
1397                 if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersionLetter, NULL, 0, &FirmwareVersionLetter, sizeof(FirmwareVersionLetter))
1398                     != sizeof(FirmwareVersionLetter))
1399                         return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE VERSION LETTER");
1400                 if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0')
1401                         *TargetPointer++ = FirmwareVersionLetter;
1402                 *TargetPointer = '\0';
1403         }
1404         /*
1405            Save the Host Adapter SCSI ID in the Host Adapter structure.
1406          */
1407         HostAdapter->SCSI_ID = Configuration.HostAdapterID;
1408         /*
1409            Determine the Bus Type and save it in the Host Adapter structure, determine
1410            and save the IRQ Channel if necessary, and determine and save the DMA
1411            Channel for ISA Host Adapters.
1412          */
1413         HostAdapter->HostAdapterBusType = BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4'];
1414         if (HostAdapter->IRQ_Channel == 0) {
1415                 if (Configuration.IRQ_Channel9)
1416                         HostAdapter->IRQ_Channel = 9;
1417                 else if (Configuration.IRQ_Channel10)
1418                         HostAdapter->IRQ_Channel = 10;
1419                 else if (Configuration.IRQ_Channel11)
1420                         HostAdapter->IRQ_Channel = 11;
1421                 else if (Configuration.IRQ_Channel12)
1422                         HostAdapter->IRQ_Channel = 12;
1423                 else if (Configuration.IRQ_Channel14)
1424                         HostAdapter->IRQ_Channel = 14;
1425                 else if (Configuration.IRQ_Channel15)
1426                         HostAdapter->IRQ_Channel = 15;
1427         }
1428         if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus) {
1429                 if (Configuration.DMA_Channel5)
1430                         HostAdapter->DMA_Channel = 5;
1431                 else if (Configuration.DMA_Channel6)
1432                         HostAdapter->DMA_Channel = 6;
1433                 else if (Configuration.DMA_Channel7)
1434                         HostAdapter->DMA_Channel = 7;
1435         }
1436         /*
1437            Determine whether Extended Translation is enabled and save it in
1438            the Host Adapter structure.
1439          */
1440         GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
1441         HostAdapter->ExtendedTranslationEnabled = GeometryRegister.gr.ExtendedTranslationEnabled;
1442         /*
1443            Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1444            SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1445            Ultra SCSI flag in the Host Adapter structure.
1446          */
1447         HostAdapter->HostAdapterScatterGatherLimit = ExtendedSetupInformation.ScatterGatherLimit;
1448         HostAdapter->DriverScatterGatherLimit = HostAdapter->HostAdapterScatterGatherLimit;
1449         if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit)
1450                 HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
1451         if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt)
1452                 HostAdapter->LevelSensitiveInterrupt = true;
1453         HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI;
1454         HostAdapter->HostDifferentialSCSI = ExtendedSetupInformation.HostDifferentialSCSI;
1455         HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM;
1456         HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI;
1457         /*
1458            Determine whether Extended LUN Format CCBs are supported and save the
1459            information in the Host Adapter structure.
1460          */
1461         if (HostAdapter->FirmwareVersion[0] == '5' || (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI))
1462                 HostAdapter->ExtendedLUNSupport = true;
1463         /*
1464            Issue the Inquire PCI Host Adapter Information command to read the
1465            Termination Information from "W" series MultiMaster Host Adapters.
1466          */
1467         if (HostAdapter->FirmwareVersion[0] == '5') {
1468                 if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation))
1469                     != sizeof(PCIHostAdapterInformation))
1470                         return BusLogic_Failure(HostAdapter, "INQUIRE PCI HOST ADAPTER INFORMATION");
1471                 /*
1472                    Save the Termination Information in the Host Adapter structure.
1473                  */
1474                 if (PCIHostAdapterInformation.GenericInfoValid) {
1475                         HostAdapter->TerminationInfoValid = true;
1476                         HostAdapter->LowByteTerminated = PCIHostAdapterInformation.LowByteTerminated;
1477                         HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated;
1478                 }
1479         }
1480         /*
1481            Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data
1482            from "W" and "C" series MultiMaster Host Adapters.
1483          */
1484         if (HostAdapter->FirmwareVersion[0] >= '4') {
1485                 FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset;
1486                 FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData);
1487                 if (BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIData, sizeof(AutoSCSIData))
1488                     != sizeof(AutoSCSIData))
1489                         return BusLogic_Failure(HostAdapter, "FETCH HOST ADAPTER LOCAL RAM");
1490                 /*
1491                    Save the Parity Checking Enabled, Bus Reset Enabled, and Termination
1492                    Information in the Host Adapter structure.
1493                  */
1494                 HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled;
1495                 HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled;
1496                 if (HostAdapter->FirmwareVersion[0] == '4') {
1497                         HostAdapter->TerminationInfoValid = true;
1498                         HostAdapter->LowByteTerminated = AutoSCSIData.LowByteTerminated;
1499                         HostAdapter->HighByteTerminated = AutoSCSIData.HighByteTerminated;
1500                 }
1501                 /*
1502                    Save the Wide Permitted, Fast Permitted, Synchronous Permitted,
1503                    Disconnect Permitted, Ultra Permitted, and SCAM Information in the
1504                    Host Adapter structure.
1505                  */
1506                 HostAdapter->WidePermitted = AutoSCSIData.WidePermitted;
1507                 HostAdapter->FastPermitted = AutoSCSIData.FastPermitted;
1508                 HostAdapter->SynchronousPermitted = AutoSCSIData.SynchronousPermitted;
1509                 HostAdapter->DisconnectPermitted = AutoSCSIData.DisconnectPermitted;
1510                 if (HostAdapter->HostUltraSCSI)
1511                         HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted;
1512                 if (HostAdapter->HostSupportsSCAM) {
1513                         HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled;
1514                         HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2;
1515                 }
1516         }
1517         /*
1518            Initialize fields in the Host Adapter structure for "S" and "A" series
1519            MultiMaster Host Adapters.
1520          */
1521         if (HostAdapter->FirmwareVersion[0] < '4') {
1522                 if (SetupInformation.SynchronousInitiationEnabled) {
1523                         HostAdapter->SynchronousPermitted = 0xFF;
1524                         if (HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus) {
1525                                 if (ExtendedSetupInformation.Misc.FastOnEISA)
1526                                         HostAdapter->FastPermitted = 0xFF;
1527                                 if (strcmp(HostAdapter->ModelName, "BT-757") == 0)
1528                                         HostAdapter->WidePermitted = 0xFF;
1529                         }
1530                 }
1531                 HostAdapter->DisconnectPermitted = 0xFF;
1532                 HostAdapter->ParityCheckingEnabled = SetupInformation.ParityCheckingEnabled;
1533                 HostAdapter->BusResetEnabled = true;
1534         }
1535         /*
1536            Determine the maximum number of Target IDs and Logical Units supported by
1537            this driver for Wide and Narrow Host Adapters.
1538          */
1539         HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
1540         HostAdapter->MaxLogicalUnits = (HostAdapter->ExtendedLUNSupport ? 32 : 8);
1541         /*
1542            Select appropriate values for the Mailbox Count, Driver Queue Depth,
1543            Initial CCBs, and Incremental CCBs variables based on whether or not Strict
1544            Round Robin Mode is supported.  If Strict Round Robin Mode is supported,
1545            then there is no performance degradation in using the maximum possible
1546            number of Outgoing and Incoming Mailboxes and allowing the Tagged and
1547            Untagged Queue Depths to determine the actual utilization.  If Strict Round
1548            Robin Mode is not supported, then the Host Adapter must scan all the
1549            Outgoing Mailboxes whenever an Outgoing Mailbox entry is made, which can
1550            cause a substantial performance penalty.  The host adapters actually have
1551            room to store the following number of CCBs internally; that is, they can
1552            internally queue and manage this many active commands on the SCSI bus
1553            simultaneously.  Performance measurements demonstrate that the Driver Queue
1554            Depth should be set to the Mailbox Count, rather than the Host Adapter
1555            Queue Depth (internal CCB capacity), as it is more efficient to have the
1556            queued commands waiting in Outgoing Mailboxes if necessary than to block
1557            the process in the higher levels of the SCSI Subsystem.
1558
1559            192          BT-948/958/958D
1560            100          BT-946C/956C/956CD/747C/757C/757CD/445C
1561            50   BT-545C/540CF
1562            30   BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1563          */
1564         if (HostAdapter->FirmwareVersion[0] == '5')
1565                 HostAdapter->HostAdapterQueueDepth = 192;
1566         else if (HostAdapter->FirmwareVersion[0] == '4')
1567                 HostAdapter->HostAdapterQueueDepth = (HostAdapter->HostAdapterBusType != BusLogic_ISA_Bus ? 100 : 50);
1568         else
1569                 HostAdapter->HostAdapterQueueDepth = 30;
1570         if (strcmp(HostAdapter->FirmwareVersion, "3.31") >= 0) {
1571                 HostAdapter->StrictRoundRobinModeSupport = true;
1572                 HostAdapter->MailboxCount = BusLogic_MaxMailboxes;
1573         } else {
1574                 HostAdapter->StrictRoundRobinModeSupport = false;
1575                 HostAdapter->MailboxCount = 32;
1576         }
1577         HostAdapter->DriverQueueDepth = HostAdapter->MailboxCount;
1578         HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize;
1579         HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize;
1580         /*
1581            Tagged Queuing support is available and operates properly on all "W" series
1582            MultiMaster Host Adapters, on "C" series MultiMaster Host Adapters with
1583            firmware version 4.22 and above, and on "S" series MultiMaster Host
1584            Adapters with firmware version 3.35 and above.
1585          */
1586         HostAdapter->TaggedQueuingPermitted = 0;
1587         switch (HostAdapter->FirmwareVersion[0]) {
1588         case '5':
1589                 HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1590                 break;
1591         case '4':
1592                 if (strcmp(HostAdapter->FirmwareVersion, "4.22") >= 0)
1593                         HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1594                 break;
1595         case '3':
1596                 if (strcmp(HostAdapter->FirmwareVersion, "3.35") >= 0)
1597                         HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1598                 break;
1599         }
1600         /*
1601            Determine the Host Adapter BIOS Address if the BIOS is enabled and
1602            save it in the Host Adapter structure.  The BIOS is disabled if the
1603            BIOS_Address is 0.
1604          */
1605         HostAdapter->BIOS_Address = ExtendedSetupInformation.BIOS_Address << 12;
1606         /*
1607            ISA Host Adapters require Bounce Buffers if there is more than 16MB memory.
1608          */
1609         if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus && (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1610                 HostAdapter->BounceBuffersRequired = true;
1611         /*
1612            BusLogic BT-445S Host Adapters prior to board revision E have a hardware
1613            bug whereby when the BIOS is enabled, transfers to/from the same address
1614            range the BIOS occupies modulo 16MB are handled incorrectly.  Only properly
1615            functioning BT-445S Host Adapters have firmware version 3.37, so require
1616            that ISA Bounce Buffers be used for the buggy BT-445S models if there is
1617            more than 16MB memory.
1618          */
1619         if (HostAdapter->BIOS_Address > 0 && strcmp(HostAdapter->ModelName, "BT-445S") == 0 && strcmp(HostAdapter->FirmwareVersion, "3.37") < 0 && (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1620                 HostAdapter->BounceBuffersRequired = true;
1621         /*
1622            Initialize parameters common to MultiMaster and FlashPoint Host Adapters.
1623          */
1624       Common:
1625         /*
1626            Initialize the Host Adapter Full Model Name from the Model Name.
1627          */
1628         strcpy(HostAdapter->FullModelName, "BusLogic ");
1629         strcat(HostAdapter->FullModelName, HostAdapter->ModelName);
1630         /*
1631            Select an appropriate value for the Tagged Queue Depth either from a
1632            BusLogic Driver Options specification, or based on whether this Host
1633            Adapter requires that ISA Bounce Buffers be used.  The Tagged Queue Depth
1634            is left at 0 for automatic determination in BusLogic_SelectQueueDepths.
1635            Initialize the Untagged Queue Depth.
1636          */
1637         for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) {
1638                 unsigned char QueueDepth = 0;
1639                 if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->QueueDepth[TargetID] > 0)
1640                         QueueDepth = HostAdapter->DriverOptions->QueueDepth[TargetID];
1641                 else if (HostAdapter->BounceBuffersRequired)
1642                         QueueDepth = BusLogic_TaggedQueueDepthBB;
1643                 HostAdapter->QueueDepth[TargetID] = QueueDepth;
1644         }
1645         if (HostAdapter->BounceBuffersRequired)
1646                 HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepthBB;
1647         else
1648                 HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepth;
1649         if (HostAdapter->DriverOptions != NULL)
1650                 HostAdapter->CommonQueueDepth = HostAdapter->DriverOptions->CommonQueueDepth;
1651         if (HostAdapter->CommonQueueDepth > 0 && HostAdapter->CommonQueueDepth < HostAdapter->UntaggedQueueDepth)
1652                 HostAdapter->UntaggedQueueDepth = HostAdapter->CommonQueueDepth;
1653         /*
1654            Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1655            Therefore, mask the Tagged Queuing Permitted Default bits with the
1656            Disconnect/Reconnect Permitted bits.
1657          */
1658         HostAdapter->TaggedQueuingPermitted &= HostAdapter->DisconnectPermitted;
1659         /*
1660            Combine the default Tagged Queuing Permitted bits with any BusLogic Driver
1661            Options Tagged Queuing specification.
1662          */
1663         if (HostAdapter->DriverOptions != NULL)
1664                 HostAdapter->TaggedQueuingPermitted =
1665                     (HostAdapter->DriverOptions->TaggedQueuingPermitted & HostAdapter->DriverOptions->TaggedQueuingPermittedMask) | (HostAdapter->TaggedQueuingPermitted & ~HostAdapter->DriverOptions->TaggedQueuingPermittedMask);
1666
1667         /*
1668            Select an appropriate value for Bus Settle Time either from a BusLogic
1669            Driver Options specification, or from BusLogic_DefaultBusSettleTime.
1670          */
1671         if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->BusSettleTime > 0)
1672                 HostAdapter->BusSettleTime = HostAdapter->DriverOptions->BusSettleTime;
1673         else
1674                 HostAdapter->BusSettleTime = BusLogic_DefaultBusSettleTime;
1675         /*
1676            Indicate reading the Host Adapter Configuration completed successfully.
1677          */
1678         return true;
1679 }
1680
1681
1682 /*
1683   BusLogic_ReportHostAdapterConfiguration reports the configuration of
1684   Host Adapter.
1685 */
1686
1687 static bool __init BusLogic_ReportHostAdapterConfiguration(struct BusLogic_HostAdapter
1688                                                               *HostAdapter)
1689 {
1690         unsigned short AllTargetsMask = (1 << HostAdapter->MaxTargetDevices) - 1;
1691         unsigned short SynchronousPermitted, FastPermitted;
1692         unsigned short UltraPermitted, WidePermitted;
1693         unsigned short DisconnectPermitted, TaggedQueuingPermitted;
1694         bool CommonSynchronousNegotiation, CommonTaggedQueueDepth;
1695         char SynchronousString[BusLogic_MaxTargetDevices + 1];
1696         char WideString[BusLogic_MaxTargetDevices + 1];
1697         char DisconnectString[BusLogic_MaxTargetDevices + 1];
1698         char TaggedQueuingString[BusLogic_MaxTargetDevices + 1];
1699         char *SynchronousMessage = SynchronousString;
1700         char *WideMessage = WideString;
1701         char *DisconnectMessage = DisconnectString;
1702         char *TaggedQueuingMessage = TaggedQueuingString;
1703         int TargetID;
1704         BusLogic_Info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n",
1705                       HostAdapter, HostAdapter->ModelName,
1706                       BusLogic_HostAdapterBusNames[HostAdapter->HostAdapterBusType], (HostAdapter->HostWideSCSI ? " Wide" : ""), (HostAdapter->HostDifferentialSCSI ? " Differential" : ""), (HostAdapter->HostUltraSCSI ? " Ultra" : ""));
1707         BusLogic_Info("  Firmware Version: %s, I/O Address: 0x%X, " "IRQ Channel: %d/%s\n", HostAdapter, HostAdapter->FirmwareVersion, HostAdapter->IO_Address, HostAdapter->IRQ_Channel, (HostAdapter->LevelSensitiveInterrupt ? "Level" : "Edge"));
1708         if (HostAdapter->HostAdapterBusType != BusLogic_PCI_Bus) {
1709                 BusLogic_Info("  DMA Channel: ", HostAdapter);
1710                 if (HostAdapter->DMA_Channel > 0)
1711                         BusLogic_Info("%d, ", HostAdapter, HostAdapter->DMA_Channel);
1712                 else
1713                         BusLogic_Info("None, ", HostAdapter);
1714                 if (HostAdapter->BIOS_Address > 0)
1715                         BusLogic_Info("BIOS Address: 0x%X, ", HostAdapter, HostAdapter->BIOS_Address);
1716                 else
1717                         BusLogic_Info("BIOS Address: None, ", HostAdapter);
1718         } else {
1719                 BusLogic_Info("  PCI Bus: %d, Device: %d, Address: ", HostAdapter, HostAdapter->Bus, HostAdapter->Device);
1720                 if (HostAdapter->PCI_Address > 0)
1721                         BusLogic_Info("0x%X, ", HostAdapter, HostAdapter->PCI_Address);
1722                 else
1723                         BusLogic_Info("Unassigned, ", HostAdapter);
1724         }
1725         BusLogic_Info("Host Adapter SCSI ID: %d\n", HostAdapter, HostAdapter->SCSI_ID);
1726         BusLogic_Info("  Parity Checking: %s, Extended Translation: %s\n", HostAdapter, (HostAdapter->ParityCheckingEnabled ? "Enabled" : "Disabled"), (HostAdapter->ExtendedTranslationEnabled ? "Enabled" : "Disabled"));
1727         AllTargetsMask &= ~(1 << HostAdapter->SCSI_ID);
1728         SynchronousPermitted = HostAdapter->SynchronousPermitted & AllTargetsMask;
1729         FastPermitted = HostAdapter->FastPermitted & AllTargetsMask;
1730         UltraPermitted = HostAdapter->UltraPermitted & AllTargetsMask;
1731         if ((BusLogic_MultiMasterHostAdapterP(HostAdapter) && (HostAdapter->FirmwareVersion[0] >= '4' || HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus)) || BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1732                 CommonSynchronousNegotiation = false;
1733                 if (SynchronousPermitted == 0) {
1734                         SynchronousMessage = "Disabled";
1735                         CommonSynchronousNegotiation = true;
1736                 } else if (SynchronousPermitted == AllTargetsMask) {
1737                         if (FastPermitted == 0) {
1738                                 SynchronousMessage = "Slow";
1739                                 CommonSynchronousNegotiation = true;
1740                         } else if (FastPermitted == AllTargetsMask) {
1741                                 if (UltraPermitted == 0) {
1742                                         SynchronousMessage = "Fast";
1743                                         CommonSynchronousNegotiation = true;
1744                                 } else if (UltraPermitted == AllTargetsMask) {
1745                                         SynchronousMessage = "Ultra";
1746                                         CommonSynchronousNegotiation = true;
1747                                 }
1748                         }
1749                 }
1750                 if (!CommonSynchronousNegotiation) {
1751                         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1752                                 SynchronousString[TargetID] = ((!(SynchronousPermitted & (1 << TargetID))) ? 'N' : (!(FastPermitted & (1 << TargetID)) ? 'S' : (!(UltraPermitted & (1 << TargetID)) ? 'F' : 'U')));
1753                         SynchronousString[HostAdapter->SCSI_ID] = '#';
1754                         SynchronousString[HostAdapter->MaxTargetDevices] = '\0';
1755                 }
1756         } else
1757                 SynchronousMessage = (SynchronousPermitted == 0 ? "Disabled" : "Enabled");
1758         WidePermitted = HostAdapter->WidePermitted & AllTargetsMask;
1759         if (WidePermitted == 0)
1760                 WideMessage = "Disabled";
1761         else if (WidePermitted == AllTargetsMask)
1762                 WideMessage = "Enabled";
1763         else {
1764                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1765                         WideString[TargetID] = ((WidePermitted & (1 << TargetID)) ? 'Y' : 'N');
1766                 WideString[HostAdapter->SCSI_ID] = '#';
1767                 WideString[HostAdapter->MaxTargetDevices] = '\0';
1768         }
1769         DisconnectPermitted = HostAdapter->DisconnectPermitted & AllTargetsMask;
1770         if (DisconnectPermitted == 0)
1771                 DisconnectMessage = "Disabled";
1772         else if (DisconnectPermitted == AllTargetsMask)
1773                 DisconnectMessage = "Enabled";
1774         else {
1775                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1776                         DisconnectString[TargetID] = ((DisconnectPermitted & (1 << TargetID)) ? 'Y' : 'N');
1777                 DisconnectString[HostAdapter->SCSI_ID] = '#';
1778                 DisconnectString[HostAdapter->MaxTargetDevices] = '\0';
1779         }
1780         TaggedQueuingPermitted = HostAdapter->TaggedQueuingPermitted & AllTargetsMask;
1781         if (TaggedQueuingPermitted == 0)
1782                 TaggedQueuingMessage = "Disabled";
1783         else if (TaggedQueuingPermitted == AllTargetsMask)
1784                 TaggedQueuingMessage = "Enabled";
1785         else {
1786                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1787                         TaggedQueuingString[TargetID] = ((TaggedQueuingPermitted & (1 << TargetID)) ? 'Y' : 'N');
1788                 TaggedQueuingString[HostAdapter->SCSI_ID] = '#';
1789                 TaggedQueuingString[HostAdapter->MaxTargetDevices] = '\0';
1790         }
1791         BusLogic_Info("  Synchronous Negotiation: %s, Wide Negotiation: %s\n", HostAdapter, SynchronousMessage, WideMessage);
1792         BusLogic_Info("  Disconnect/Reconnect: %s, Tagged Queuing: %s\n", HostAdapter, DisconnectMessage, TaggedQueuingMessage);
1793         if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
1794                 BusLogic_Info("  Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", HostAdapter, HostAdapter->DriverScatterGatherLimit, HostAdapter->HostAdapterScatterGatherLimit, HostAdapter->MailboxCount);
1795                 BusLogic_Info("  Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->HostAdapterQueueDepth);
1796         } else
1797                 BusLogic_Info("  Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->DriverScatterGatherLimit);
1798         BusLogic_Info("  Tagged Queue Depth: ", HostAdapter);
1799         CommonTaggedQueueDepth = true;
1800         for (TargetID = 1; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1801                 if (HostAdapter->QueueDepth[TargetID] != HostAdapter->QueueDepth[0]) {
1802                         CommonTaggedQueueDepth = false;
1803                         break;
1804                 }
1805         if (CommonTaggedQueueDepth) {
1806                 if (HostAdapter->QueueDepth[0] > 0)
1807                         BusLogic_Info("%d", HostAdapter, HostAdapter->QueueDepth[0]);
1808                 else
1809                         BusLogic_Info("Automatic", HostAdapter);
1810         } else
1811                 BusLogic_Info("Individual", HostAdapter);
1812         BusLogic_Info(", Untagged Queue Depth: %d\n", HostAdapter, HostAdapter->UntaggedQueueDepth);
1813         if (HostAdapter->TerminationInfoValid) {
1814                 if (HostAdapter->HostWideSCSI)
1815                         BusLogic_Info("  SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? (HostAdapter->HighByteTerminated ? "Both Enabled" : "Low Enabled")
1816                                                                                   : (HostAdapter->HighByteTerminated ? "High Enabled" : "Both Disabled")));
1817                 else
1818                         BusLogic_Info("  SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? "Enabled" : "Disabled"));
1819                 if (HostAdapter->HostSupportsSCAM)
1820                         BusLogic_Info(", SCAM: %s", HostAdapter, (HostAdapter->SCAM_Enabled ? (HostAdapter->SCAM_Level2 ? "Enabled, Level 2" : "Enabled, Level 1")
1821                                                                   : "Disabled"));
1822                 BusLogic_Info("\n", HostAdapter);
1823         }
1824         /*
1825            Indicate reporting the Host Adapter configuration completed successfully.
1826          */
1827         return true;
1828 }
1829
1830
1831 /*
1832   BusLogic_AcquireResources acquires the system resources necessary to use
1833   Host Adapter.
1834 */
1835
1836 static bool __init BusLogic_AcquireResources(struct BusLogic_HostAdapter *HostAdapter)
1837 {
1838         if (HostAdapter->IRQ_Channel == 0) {
1839                 BusLogic_Error("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", HostAdapter);
1840                 return false;
1841         }
1842         /*
1843            Acquire shared access to the IRQ Channel.
1844          */
1845         if (request_irq(HostAdapter->IRQ_Channel, BusLogic_InterruptHandler, IRQF_SHARED, HostAdapter->FullModelName, HostAdapter) < 0) {
1846                 BusLogic_Error("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->IRQ_Channel);
1847                 return false;
1848         }
1849         HostAdapter->IRQ_ChannelAcquired = true;
1850         /*
1851            Acquire exclusive access to the DMA Channel.
1852          */
1853         if (HostAdapter->DMA_Channel > 0) {
1854                 if (request_dma(HostAdapter->DMA_Channel, HostAdapter->FullModelName) < 0) {
1855                         BusLogic_Error("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->DMA_Channel);
1856                         return false;
1857                 }
1858                 set_dma_mode(HostAdapter->DMA_Channel, DMA_MODE_CASCADE);
1859                 enable_dma(HostAdapter->DMA_Channel);
1860                 HostAdapter->DMA_ChannelAcquired = true;
1861         }
1862         /*
1863            Indicate the System Resource Acquisition completed successfully,
1864          */
1865         return true;
1866 }
1867
1868
1869 /*
1870   BusLogic_ReleaseResources releases any system resources previously acquired
1871   by BusLogic_AcquireResources.
1872 */
1873
1874 static void BusLogic_ReleaseResources(struct BusLogic_HostAdapter *HostAdapter)
1875 {
1876         /*
1877            Release shared access to the IRQ Channel.
1878          */
1879         if (HostAdapter->IRQ_ChannelAcquired)
1880                 free_irq(HostAdapter->IRQ_Channel, HostAdapter);
1881         /*
1882            Release exclusive access to the DMA Channel.
1883          */
1884         if (HostAdapter->DMA_ChannelAcquired)
1885                 free_dma(HostAdapter->DMA_Channel);
1886         /*
1887            Release any allocated memory structs not released elsewhere
1888          */
1889         if (HostAdapter->MailboxSpace)
1890                 pci_free_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, HostAdapter->MailboxSpace, HostAdapter->MailboxSpaceHandle);
1891         pci_dev_put(HostAdapter->PCI_Device);
1892         HostAdapter->MailboxSpace = NULL;
1893         HostAdapter->MailboxSpaceHandle = 0;
1894         HostAdapter->MailboxSize = 0;
1895 }
1896
1897
1898 /*
1899   BusLogic_InitializeHostAdapter initializes Host Adapter.  This is the only
1900   function called during SCSI Host Adapter detection which modifies the state
1901   of the Host Adapter from its initial power on or hard reset state.
1902 */
1903
1904 static bool BusLogic_InitializeHostAdapter(struct BusLogic_HostAdapter
1905                                               *HostAdapter)
1906 {
1907         struct BusLogic_ExtendedMailboxRequest ExtendedMailboxRequest;
1908         enum BusLogic_RoundRobinModeRequest RoundRobinModeRequest;
1909         enum BusLogic_SetCCBFormatRequest SetCCBFormatRequest;
1910         int TargetID;
1911         /*
1912            Initialize the pointers to the first and last CCBs that are queued for
1913            completion processing.
1914          */
1915         HostAdapter->FirstCompletedCCB = NULL;
1916         HostAdapter->LastCompletedCCB = NULL;
1917         /*
1918            Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
1919            Command Successful Flag, Active Commands, and Commands Since Reset
1920            for each Target Device.
1921          */
1922         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
1923                 HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
1924                 HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false;
1925                 HostAdapter->TargetFlags[TargetID].CommandSuccessfulFlag = false;
1926                 HostAdapter->ActiveCommands[TargetID] = 0;
1927                 HostAdapter->CommandsSinceReset[TargetID] = 0;
1928         }
1929         /*
1930            FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
1931          */
1932         if (BusLogic_FlashPointHostAdapterP(HostAdapter))
1933                 goto Done;
1934         /*
1935            Initialize the Outgoing and Incoming Mailbox pointers.
1936          */
1937         HostAdapter->MailboxSize = HostAdapter->MailboxCount * (sizeof(struct BusLogic_OutgoingMailbox) + sizeof(struct BusLogic_IncomingMailbox));
1938         HostAdapter->MailboxSpace = pci_alloc_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, &HostAdapter->MailboxSpaceHandle);
1939         if (HostAdapter->MailboxSpace == NULL)
1940                 return BusLogic_Failure(HostAdapter, "MAILBOX ALLOCATION");
1941         HostAdapter->FirstOutgoingMailbox = (struct BusLogic_OutgoingMailbox *) HostAdapter->MailboxSpace;
1942         HostAdapter->LastOutgoingMailbox = HostAdapter->FirstOutgoingMailbox + HostAdapter->MailboxCount - 1;
1943         HostAdapter->NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox;
1944         HostAdapter->FirstIncomingMailbox = (struct BusLogic_IncomingMailbox *) (HostAdapter->LastOutgoingMailbox + 1);
1945         HostAdapter->LastIncomingMailbox = HostAdapter->FirstIncomingMailbox + HostAdapter->MailboxCount - 1;
1946         HostAdapter->NextIncomingMailbox = HostAdapter->FirstIncomingMailbox;
1947
1948         /*
1949            Initialize the Outgoing and Incoming Mailbox structures.
1950          */
1951         memset(HostAdapter->FirstOutgoingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_OutgoingMailbox));
1952         memset(HostAdapter->FirstIncomingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_IncomingMailbox));
1953         /*
1954            Initialize the Host Adapter's Pointer to the Outgoing/Incoming Mailboxes.
1955          */
1956         ExtendedMailboxRequest.MailboxCount = HostAdapter->MailboxCount;
1957         ExtendedMailboxRequest.BaseMailboxAddress = (u32) HostAdapter->MailboxSpaceHandle;
1958         if (BusLogic_Command(HostAdapter, BusLogic_InitializeExtendedMailbox, &ExtendedMailboxRequest, sizeof(ExtendedMailboxRequest), NULL, 0) < 0)
1959                 return BusLogic_Failure(HostAdapter, "MAILBOX INITIALIZATION");
1960         /*
1961            Enable Strict Round Robin Mode if supported by the Host Adapter.  In
1962            Strict Round Robin Mode, the Host Adapter only looks at the next Outgoing
1963            Mailbox for each new command, rather than scanning through all the
1964            Outgoing Mailboxes to find any that have new commands in them.  Strict
1965            Round Robin Mode is significantly more efficient.
1966          */
1967         if (HostAdapter->StrictRoundRobinModeSupport) {
1968                 RoundRobinModeRequest = BusLogic_StrictRoundRobinMode;
1969                 if (BusLogic_Command(HostAdapter, BusLogic_EnableStrictRoundRobinMode, &RoundRobinModeRequest, sizeof(RoundRobinModeRequest), NULL, 0) < 0)
1970                         return BusLogic_Failure(HostAdapter, "ENABLE STRICT ROUND ROBIN MODE");
1971         }
1972         /*
1973            For Host Adapters that support Extended LUN Format CCBs, issue the Set CCB
1974            Format command to allow 32 Logical Units per Target Device.
1975          */
1976         if (HostAdapter->ExtendedLUNSupport) {
1977                 SetCCBFormatRequest = BusLogic_ExtendedLUNFormatCCB;
1978                 if (BusLogic_Command(HostAdapter, BusLogic_SetCCBFormat, &SetCCBFormatRequest, sizeof(SetCCBFormatRequest), NULL, 0) < 0)
1979                         return BusLogic_Failure(HostAdapter, "SET CCB FORMAT");
1980         }
1981         /*
1982            Announce Successful Initialization.
1983          */
1984       Done:
1985         if (!HostAdapter->HostAdapterInitialized) {
1986                 BusLogic_Info("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName);
1987                 BusLogic_Info("\n", HostAdapter);
1988         } else
1989                 BusLogic_Warning("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName);
1990         HostAdapter->HostAdapterInitialized = true;
1991         /*
1992            Indicate the Host Adapter Initialization completed successfully.
1993          */
1994         return true;
1995 }
1996
1997
1998 /*
1999   BusLogic_TargetDeviceInquiry inquires about the Target Devices accessible
2000   through Host Adapter.
2001 */
2002
2003 static bool __init BusLogic_TargetDeviceInquiry(struct BusLogic_HostAdapter
2004                                                    *HostAdapter)
2005 {
2006         u16 InstalledDevices;
2007         u8 InstalledDevicesID0to7[8];
2008         struct BusLogic_SetupInformation SetupInformation;
2009         u8 SynchronousPeriod[BusLogic_MaxTargetDevices];
2010         unsigned char RequestedReplyLength;
2011         int TargetID;
2012         /*
2013            Wait a few seconds between the Host Adapter Hard Reset which initiates
2014            a SCSI Bus Reset and issuing any SCSI Commands.  Some SCSI devices get
2015            confused if they receive SCSI Commands too soon after a SCSI Bus Reset.
2016          */
2017         BusLogic_Delay(HostAdapter->BusSettleTime);
2018         /*
2019            FlashPoint Host Adapters do not provide for Target Device Inquiry.
2020          */
2021         if (BusLogic_FlashPointHostAdapterP(HostAdapter))
2022                 return true;
2023         /*
2024            Inhibit the Target Device Inquiry if requested.
2025          */
2026         if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->LocalOptions.InhibitTargetInquiry)
2027                 return true;
2028         /*
2029            Issue the Inquire Target Devices command for host adapters with firmware
2030            version 4.25 or later, or the Inquire Installed Devices ID 0 to 7 command
2031            for older host adapters.  This is necessary to force Synchronous Transfer
2032            Negotiation so that the Inquire Setup Information and Inquire Synchronous
2033            Period commands will return valid data.  The Inquire Target Devices command
2034            is preferable to Inquire Installed Devices ID 0 to 7 since it only probes
2035            Logical Unit 0 of each Target Device.
2036          */
2037         if (strcmp(HostAdapter->FirmwareVersion, "4.25") >= 0) {
2038
2039                 /*
2040                  * Issue a Inquire Target Devices command.  Inquire Target Devices only
2041                  * tests Logical Unit 0 of each Target Device unlike the Inquire Installed
2042                  * Devices commands which test Logical Units 0 - 7.  Two bytes are
2043                  * returned, where byte 0 bit 0 set indicates that Target Device 0 exists,
2044                  * and so on.
2045                  */
2046
2047                 if (BusLogic_Command(HostAdapter, BusLogic_InquireTargetDevices, NULL, 0, &InstalledDevices, sizeof(InstalledDevices))
2048                     != sizeof(InstalledDevices))
2049                         return BusLogic_Failure(HostAdapter, "INQUIRE TARGET DEVICES");
2050                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2051                         HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevices & (1 << TargetID) ? true : false);
2052         } else {
2053
2054                 /*
2055                  * Issue an Inquire Installed Devices command.  For each Target Device,
2056                  * a byte is returned where bit 0 set indicates that Logical Unit 0
2057                  * exists, bit 1 set indicates that Logical Unit 1 exists, and so on.
2058                  */
2059
2060                 if (BusLogic_Command(HostAdapter, BusLogic_InquireInstalledDevicesID0to7, NULL, 0, &InstalledDevicesID0to7, sizeof(InstalledDevicesID0to7))
2061                     != sizeof(InstalledDevicesID0to7))
2062                         return BusLogic_Failure(HostAdapter, "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2063                 for (TargetID = 0; TargetID < 8; TargetID++)
2064                         HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevicesID0to7[TargetID] != 0 ? true : false);
2065         }
2066         /*
2067            Issue the Inquire Setup Information command.
2068          */
2069         RequestedReplyLength = sizeof(SetupInformation);
2070         if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation))
2071             != sizeof(SetupInformation))
2072                 return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION");
2073         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2074                 HostAdapter->SynchronousOffset[TargetID] = (TargetID < 8 ? SetupInformation.SynchronousValuesID0to7[TargetID].Offset : SetupInformation.SynchronousValuesID8to15[TargetID - 8].Offset);
2075         if (strcmp(HostAdapter->FirmwareVersion, "5.06L") >= 0)
2076                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2077                         HostAdapter->TargetFlags[TargetID].WideTransfersActive = (TargetID < 8 ? (SetupInformation.WideTransfersActiveID0to7 & (1 << TargetID)
2078                                                                                                   ? true : false)
2079                                                                                   : (SetupInformation.WideTransfersActiveID8to15 & (1 << (TargetID - 8))
2080                                                                                      ? true : false));
2081         /*
2082            Issue the Inquire Synchronous Period command.
2083          */
2084         if (HostAdapter->FirmwareVersion[0] >= '3') {
2085
2086                 /* Issue a Inquire Synchronous Period command.  For each Target Device,
2087                  * a byte is returned which represents the Synchronous Transfer Period
2088                  * in units of 10 nanoseconds.
2089                  */
2090
2091                 RequestedReplyLength = sizeof(SynchronousPeriod);
2092                 if (BusLogic_Command(HostAdapter, BusLogic_InquireSynchronousPeriod, &RequestedReplyLength, sizeof(RequestedReplyLength), &SynchronousPeriod, sizeof(SynchronousPeriod))
2093                     != sizeof(SynchronousPeriod))
2094                         return BusLogic_Failure(HostAdapter, "INQUIRE SYNCHRONOUS PERIOD");
2095                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2096                         HostAdapter->SynchronousPeriod[TargetID] = SynchronousPeriod[TargetID];
2097         } else
2098                 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2099                         if (SetupInformation.SynchronousValuesID0to7[TargetID].Offset > 0)
2100                                 HostAdapter->SynchronousPeriod[TargetID] = 20 + 5 * SetupInformation.SynchronousValuesID0to7[TargetID]
2101                                     .TransferPeriod;
2102         /*
2103            Indicate the Target Device Inquiry completed successfully.
2104          */
2105         return true;
2106 }
2107
2108 /*
2109   BusLogic_InitializeHostStructure initializes the fields in the SCSI Host
2110   structure.  The base, io_port, n_io_ports, irq, and dma_channel fields in the
2111   SCSI Host structure are intentionally left uninitialized, as this driver
2112   handles acquisition and release of these resources explicitly, as well as
2113   ensuring exclusive access to the Host Adapter hardware and data structures
2114   through explicit acquisition and release of the Host Adapter's Lock.
2115 */
2116
2117 static void __init BusLogic_InitializeHostStructure(struct BusLogic_HostAdapter
2118                                                     *HostAdapter, struct Scsi_Host *Host)
2119 {
2120         Host->max_id = HostAdapter->MaxTargetDevices;
2121         Host->max_lun = HostAdapter->MaxLogicalUnits;
2122         Host->max_channel = 0;
2123         Host->unique_id = HostAdapter->IO_Address;
2124         Host->this_id = HostAdapter->SCSI_ID;
2125         Host->can_queue = HostAdapter->DriverQueueDepth;
2126         Host->sg_tablesize = HostAdapter->DriverScatterGatherLimit;
2127         Host->unchecked_isa_dma = HostAdapter->BounceBuffersRequired;
2128         Host->cmd_per_lun = HostAdapter->UntaggedQueueDepth;
2129 }
2130
2131 /*
2132   BusLogic_SlaveConfigure will actually set the queue depth on individual
2133   scsi devices as they are permanently added to the device chain.  We
2134   shamelessly rip off the SelectQueueDepths code to make this work mostly
2135   like it used to.  Since we don't get called once at the end of the scan
2136   but instead get called for each device, we have to do things a bit
2137   differently.
2138 */
2139 static int BusLogic_SlaveConfigure(struct scsi_device *Device)
2140 {
2141         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Device->host->hostdata;
2142         int TargetID = Device->id;
2143         int QueueDepth = HostAdapter->QueueDepth[TargetID];
2144
2145         if (HostAdapter->TargetFlags[TargetID].TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) {
2146                 if (QueueDepth == 0)
2147                         QueueDepth = BusLogic_MaxAutomaticTaggedQueueDepth;
2148                 HostAdapter->QueueDepth[TargetID] = QueueDepth;
2149                 scsi_adjust_queue_depth(Device, MSG_SIMPLE_TAG, QueueDepth);
2150         } else {
2151                 HostAdapter->TaggedQueuingPermitted &= ~(1 << TargetID);
2152                 QueueDepth = HostAdapter->UntaggedQueueDepth;
2153                 HostAdapter->QueueDepth[TargetID] = QueueDepth;
2154                 scsi_adjust_queue_depth(Device, 0, QueueDepth);
2155         }
2156         QueueDepth = 0;
2157         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2158                 if (HostAdapter->TargetFlags[TargetID].TargetExists) {
2159                         QueueDepth += HostAdapter->QueueDepth[TargetID];
2160                 }
2161         if (QueueDepth > HostAdapter->AllocatedCCBs)
2162                 BusLogic_CreateAdditionalCCBs(HostAdapter, QueueDepth - HostAdapter->AllocatedCCBs, false);
2163         return 0;
2164 }
2165
2166 /*
2167   BusLogic_DetectHostAdapter probes for BusLogic Host Adapters at the standard
2168   I/O Addresses where they may be located, initializing, registering, and
2169   reporting the configuration of each BusLogic Host Adapter it finds.  It
2170   returns the number of BusLogic Host Adapters successfully initialized and
2171   registered.
2172 */
2173
2174 static int __init BusLogic_init(void)
2175 {
2176         int BusLogicHostAdapterCount = 0, DriverOptionsIndex = 0, ProbeIndex;
2177         struct BusLogic_HostAdapter *PrototypeHostAdapter;
2178         int ret = 0;
2179
2180 #ifdef MODULE
2181         if (BusLogic)
2182                 BusLogic_Setup(BusLogic);
2183 #endif
2184
2185         if (BusLogic_ProbeOptions.NoProbe)
2186                 return -ENODEV;
2187         BusLogic_ProbeInfoList =
2188             kzalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_KERNEL);
2189         if (BusLogic_ProbeInfoList == NULL) {
2190                 BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL);
2191                 return -ENOMEM;
2192         }
2193
2194         PrototypeHostAdapter =
2195             kzalloc(sizeof(struct BusLogic_HostAdapter), GFP_KERNEL);
2196         if (PrototypeHostAdapter == NULL) {
2197                 kfree(BusLogic_ProbeInfoList);
2198                 BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL);
2199                 return -ENOMEM;
2200         }
2201
2202 #ifdef MODULE
2203         if (BusLogic != NULL)
2204                 BusLogic_Setup(BusLogic);
2205 #endif
2206         BusLogic_InitializeProbeInfoList(PrototypeHostAdapter);
2207         for (ProbeIndex = 0; ProbeIndex < BusLogic_ProbeInfoCount; ProbeIndex++) {
2208                 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[ProbeIndex];
2209                 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
2210                 struct Scsi_Host *Host;
2211                 if (ProbeInfo->IO_Address == 0)
2212                         continue;
2213                 memset(HostAdapter, 0, sizeof(struct BusLogic_HostAdapter));
2214                 HostAdapter->HostAdapterType = ProbeInfo->HostAdapterType;
2215                 HostAdapter->HostAdapterBusType = ProbeInfo->HostAdapterBusType;
2216                 HostAdapter->IO_Address = ProbeInfo->IO_Address;
2217                 HostAdapter->PCI_Address = ProbeInfo->PCI_Address;
2218                 HostAdapter->Bus = ProbeInfo->Bus;
2219                 HostAdapter->Device = ProbeInfo->Device;
2220                 HostAdapter->PCI_Device = ProbeInfo->PCI_Device;
2221                 HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel;
2222                 HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType];
2223                 /*
2224                    Probe the Host Adapter.  If unsuccessful, abort further initialization.
2225                  */
2226                 if (!BusLogic_ProbeHostAdapter(HostAdapter))
2227                         continue;
2228                 /*
2229                    Hard Reset the Host Adapter.  If unsuccessful, abort further
2230                    initialization.
2231                  */
2232                 if (!BusLogic_HardwareResetHostAdapter(HostAdapter, true))
2233                         continue;
2234                 /*
2235                    Check the Host Adapter.  If unsuccessful, abort further initialization.
2236                  */
2237                 if (!BusLogic_CheckHostAdapter(HostAdapter))
2238                         continue;
2239                 /*
2240                    Initialize the Driver Options field if provided.
2241                  */
2242                 if (DriverOptionsIndex < BusLogic_DriverOptionsCount)
2243                         HostAdapter->DriverOptions = &BusLogic_DriverOptions[DriverOptionsIndex++];
2244                 /*
2245                    Announce the Driver Version and Date, Author's Name, Copyright Notice,
2246                    and Electronic Mail Address.
2247                  */
2248                 BusLogic_AnnounceDriver(HostAdapter);
2249                 /*
2250                    Register usage of the I/O Address range.  From this point onward, any
2251                    failure will be assumed to be due to a problem with the Host Adapter,
2252                    rather than due to having mistakenly identified this port as belonging
2253                    to a BusLogic Host Adapter.  The I/O Address range will not be
2254                    released, thereby preventing it from being incorrectly identified as
2255                    any other type of Host Adapter.
2256                  */
2257                 if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, "BusLogic"))
2258                         continue;
2259                 /*
2260                    Register the SCSI Host structure.
2261                  */
2262
2263                 Host = scsi_host_alloc(&Bus_Logic_template, sizeof(struct BusLogic_HostAdapter));
2264                 if (Host == NULL) {
2265                         release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2266                         continue;
2267                 }
2268                 HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata;
2269                 memcpy(HostAdapter, PrototypeHostAdapter, sizeof(struct BusLogic_HostAdapter));
2270                 HostAdapter->SCSI_Host = Host;
2271                 HostAdapter->HostNumber = Host->host_no;
2272                 /*
2273                    Add Host Adapter to the end of the list of registered BusLogic
2274                    Host Adapters.
2275                  */
2276                 list_add_tail(&HostAdapter->host_list, &BusLogic_host_list);
2277
2278                 /*
2279                    Read the Host Adapter Configuration, Configure the Host Adapter,
2280                    Acquire the System Resources necessary to use the Host Adapter, then
2281                    Create the Initial CCBs, Initialize the Host Adapter, and finally
2282                    perform Target Device Inquiry.
2283                  */
2284                 if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) &&
2285                     BusLogic_ReportHostAdapterConfiguration(HostAdapter) &&
2286                     BusLogic_AcquireResources(HostAdapter) &&
2287                     BusLogic_CreateInitialCCBs(HostAdapter) &&
2288                     BusLogic_InitializeHostAdapter(HostAdapter) &&
2289                     BusLogic_TargetDeviceInquiry(HostAdapter)) {
2290                         /*
2291                            Initialization has been completed successfully.  Release and
2292                            re-register usage of the I/O Address range so that the Model
2293                            Name of the Host Adapter will appear, and initialize the SCSI
2294                            Host structure.
2295                          */
2296                         release_region(HostAdapter->IO_Address,
2297                                        HostAdapter->AddressCount);
2298                         if (!request_region(HostAdapter->IO_Address,
2299                                             HostAdapter->AddressCount,
2300                                             HostAdapter->FullModelName)) {
2301                                 printk(KERN_WARNING
2302                                         "BusLogic: Release and re-register of "
2303                                         "port 0x%04lx failed \n",
2304                                         (unsigned long)HostAdapter->IO_Address);
2305                                 BusLogic_DestroyCCBs(HostAdapter);
2306                                 BusLogic_ReleaseResources(HostAdapter);
2307                                 list_del(&HostAdapter->host_list);
2308                                 scsi_host_put(Host);
2309                                 ret = -ENOMEM;
2310                         } else {
2311                                 BusLogic_InitializeHostStructure(HostAdapter,
2312                                                                  Host);
2313                                 if (scsi_add_host(Host, HostAdapter->PCI_Device
2314                                                 ? &HostAdapter->PCI_Device->dev
2315                                                   : NULL)) {
2316                                         printk(KERN_WARNING
2317                                                "BusLogic: scsi_add_host()"
2318                                                "failed!\n");
2319                                         BusLogic_DestroyCCBs(HostAdapter);
2320                                         BusLogic_ReleaseResources(HostAdapter);
2321                                         list_del(&HostAdapter->host_list);
2322                                         scsi_host_put(Host);
2323                                         ret = -ENODEV;
2324                                 } else {
2325                                         scsi_scan_host(Host);
2326                                         BusLogicHostAdapterCount++;
2327                                 }
2328                         }
2329                 } else {
2330                         /*
2331                            An error occurred during Host Adapter Configuration Querying, Host
2332                            Adapter Configuration, Resource Acquisition, CCB Creation, Host
2333                            Adapter Initialization, or Target Device Inquiry, so remove Host
2334                            Adapter from the list of registered BusLogic Host Adapters, destroy
2335                            the CCBs, Release the System Resources, and Unregister the SCSI
2336                            Host.
2337                          */
2338                         BusLogic_DestroyCCBs(HostAdapter);
2339                         BusLogic_ReleaseResources(HostAdapter);
2340                         list_del(&HostAdapter->host_list);
2341                         scsi_host_put(Host);
2342                         ret = -ENODEV;
2343                 }
2344         }
2345         kfree(PrototypeHostAdapter);
2346         kfree(BusLogic_ProbeInfoList);
2347         BusLogic_ProbeInfoList = NULL;
2348         return ret;
2349 }
2350
2351
2352 /*
2353   BusLogic_ReleaseHostAdapter releases all resources previously acquired to
2354   support a specific Host Adapter, including the I/O Address range, and
2355   unregisters the BusLogic Host Adapter.
2356 */
2357
2358 static int __exit BusLogic_ReleaseHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
2359 {
2360         struct Scsi_Host *Host = HostAdapter->SCSI_Host;
2361
2362         scsi_remove_host(Host);
2363
2364         /*
2365            FlashPoint Host Adapters must first be released by the FlashPoint
2366            SCCB Manager.
2367          */
2368         if (BusLogic_FlashPointHostAdapterP(HostAdapter))
2369                 FlashPoint_ReleaseHostAdapter(HostAdapter->CardHandle);
2370         /*
2371            Destroy the CCBs and release any system resources acquired to
2372            support Host Adapter.
2373          */
2374         BusLogic_DestroyCCBs(HostAdapter);
2375         BusLogic_ReleaseResources(HostAdapter);
2376         /*
2377            Release usage of the I/O Address range.
2378          */
2379         release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2380         /*
2381            Remove Host Adapter from the list of registered BusLogic Host Adapters.
2382          */
2383         list_del(&HostAdapter->host_list);
2384
2385         scsi_host_put(Host);
2386         return 0;
2387 }
2388
2389
2390 /*
2391   BusLogic_QueueCompletedCCB queues CCB for completion processing.
2392 */
2393
2394 static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *CCB)
2395 {
2396         struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter;
2397         CCB->Status = BusLogic_CCB_Completed;
2398         CCB->Next = NULL;
2399         if (HostAdapter->FirstCompletedCCB == NULL) {
2400                 HostAdapter->FirstCompletedCCB = CCB;
2401                 HostAdapter->LastCompletedCCB = CCB;
2402         } else {
2403                 HostAdapter->LastCompletedCCB->Next = CCB;
2404                 HostAdapter->LastCompletedCCB = CCB;
2405         }
2406         HostAdapter->ActiveCommands[CCB->TargetID]--;
2407 }
2408
2409
2410 /*
2411   BusLogic_ComputeResultCode computes a SCSI Subsystem Result Code from
2412   the Host Adapter Status and Target Device Status.
2413 */
2414
2415 static int BusLogic_ComputeResultCode(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_HostAdapterStatus HostAdapterStatus, enum BusLogic_TargetDeviceStatus TargetDeviceStatus)
2416 {
2417         int HostStatus;
2418         switch (HostAdapterStatus) {
2419         case BusLogic_CommandCompletedNormally:
2420         case BusLogic_LinkedCommandCompleted:
2421         case BusLogic_LinkedCommandCompletedWithFlag:
2422                 HostStatus = DID_OK;
2423                 break;
2424         case BusLogic_SCSISelectionTimeout:
2425                 HostStatus = DID_TIME_OUT;
2426                 break;
2427         case BusLogic_InvalidOutgoingMailboxActionCode:
2428         case BusLogic_InvalidCommandOperationCode:
2429         case BusLogic_InvalidCommandParameter:
2430                 BusLogic_Warning("BusLogic Driver Protocol Error 0x%02X\n", HostAdapter, HostAdapterStatus);
2431         case BusLogic_DataUnderRun:
2432         case BusLogic_DataOverRun:
2433         case BusLogic_UnexpectedBusFree:
2434         case BusLogic_LinkedCCBhasInvalidLUN:
2435         case BusLogic_AutoRequestSenseFailed:
2436         case BusLogic_TaggedQueuingMessageRejected:
2437         case BusLogic_UnsupportedMessageReceived:
2438         case BusLogic_HostAdapterHardwareFailed:
2439         case BusLogic_TargetDeviceReconnectedImproperly:
2440         case BusLogic_AbortQueueGenerated:
2441         case BusLogic_HostAdapterSoftwareError:
2442         case BusLogic_HostAdapterHardwareTimeoutError:
2443         case BusLogic_SCSIParityErrorDetected:
2444                 HostStatus = DID_ERROR;
2445                 break;
2446         case BusLogic_InvalidBusPhaseRequested:
2447         case BusLogic_TargetFailedResponseToATN:
2448         case BusLogic_HostAdapterAssertedRST:
2449         case BusLogic_OtherDeviceAssertedRST:
2450         case BusLogic_HostAdapterAssertedBusDeviceReset:
2451                 HostStatus = DID_RESET;
2452                 break;
2453         default:
2454                 BusLogic_Warning("Unknown Host Adapter Status 0x%02X\n", HostAdapter, HostAdapterStatus);
2455                 HostStatus = DID_ERROR;
2456                 break;
2457         }
2458         return (HostStatus << 16) | TargetDeviceStatus;
2459 }
2460
2461
2462 /*
2463   BusLogic_ScanIncomingMailboxes scans the Incoming Mailboxes saving any
2464   Incoming Mailbox entries for completion processing.
2465 */
2466
2467 static void BusLogic_ScanIncomingMailboxes(struct BusLogic_HostAdapter *HostAdapter)
2468 {
2469         /*
2470            Scan through the Incoming Mailboxes in Strict Round Robin fashion, saving
2471            any completed CCBs for further processing.  It is essential that for each
2472            CCB and SCSI Command issued, command completion processing is performed
2473            exactly once.  Therefore, only Incoming Mailboxes with completion code
2474            Command Completed Without Error, Command Completed With Error, or Command
2475            Aborted At Host Request are saved for completion processing.  When an
2476            Incoming Mailbox has a completion code of Aborted Command Not Found, the
2477            CCB had already completed or been aborted before the current Abort request
2478            was processed, and so completion processing has already occurred and no
2479            further action should be taken.
2480          */
2481         struct BusLogic_IncomingMailbox *NextIncomingMailbox = HostAdapter->NextIncomingMailbox;
2482         enum BusLogic_CompletionCode CompletionCode;
2483         while ((CompletionCode = NextIncomingMailbox->CompletionCode) != BusLogic_IncomingMailboxFree) {
2484                 /*
2485                    We are only allowed to do this because we limit our architectures we
2486                    run on to machines where bus_to_virt() actually works.  There *needs*
2487                    to be a dma_addr_to_virt() in the new PCI DMA mapping interface to
2488                    replace bus_to_virt() or else this code is going to become very
2489                    innefficient.
2490                  */
2491                 struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) Bus_to_Virtual(NextIncomingMailbox->CCB);
2492                 if (CompletionCode != BusLogic_AbortedCommandNotFound) {
2493                         if (CCB->Status == BusLogic_CCB_Active || CCB->Status == BusLogic_CCB_Reset) {
2494                                 /*
2495                                    Save the Completion Code for this CCB and queue the CCB
2496                                    for completion processing.
2497                                  */
2498                                 CCB->CompletionCode = CompletionCode;
2499                                 BusLogic_QueueCompletedCCB(CCB);
2500                         } else {
2501                                 /*
2502                                    If a CCB ever appears in an Incoming Mailbox and is not marked
2503                                    as status Active or Reset, then there is most likely a bug in
2504                                    the Host Adapter firmware.
2505                                  */
2506                                 BusLogic_Warning("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", HostAdapter, CCB->SerialNumber, CCB->Status);
2507                         }
2508                 }
2509                 NextIncomingMailbox->CompletionCode = BusLogic_IncomingMailboxFree;
2510                 if (++NextIncomingMailbox > HostAdapter->LastIncomingMailbox)
2511                         NextIncomingMailbox = HostAdapter->FirstIncomingMailbox;
2512         }
2513         HostAdapter->NextIncomingMailbox = NextIncomingMailbox;
2514 }
2515
2516
2517 /*
2518   BusLogic_ProcessCompletedCCBs iterates over the completed CCBs for Host
2519   Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2520   calling the SCSI Subsystem Completion Routines.  The Host Adapter's Lock
2521   should already have been acquired by the caller.
2522 */
2523
2524 static void BusLogic_ProcessCompletedCCBs(struct BusLogic_HostAdapter *HostAdapter)
2525 {
2526         if (HostAdapter->ProcessCompletedCCBsActive)
2527                 return;
2528         HostAdapter->ProcessCompletedCCBsActive = true;
2529         while (HostAdapter->FirstCompletedCCB != NULL) {
2530                 struct BusLogic_CCB *CCB = HostAdapter->FirstCompletedCCB;
2531                 struct scsi_cmnd *Command = CCB->Command;
2532                 HostAdapter->FirstCompletedCCB = CCB->Next;
2533                 if (HostAdapter->FirstCompletedCCB == NULL)
2534                         HostAdapter->LastCompletedCCB = NULL;
2535                 /*
2536                    Process the Completed CCB.
2537                  */
2538                 if (CCB->Opcode == BusLogic_BusDeviceReset) {
2539                         int TargetID = CCB->TargetID;
2540                         BusLogic_Warning("Bus Device Reset CCB #%ld to Target " "%d Completed\n", HostAdapter, CCB->SerialNumber, TargetID);
2541                         BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsCompleted);
2542                         HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false;
2543                         HostAdapter->CommandsSinceReset[TargetID] = 0;
2544                         HostAdapter->LastResetCompleted[TargetID] = jiffies;
2545                         /*
2546                            Place CCB back on the Host Adapter's free list.
2547                          */
2548                         BusLogic_DeallocateCCB(CCB);
2549 #if 0                           /* this needs to be redone different for new EH */
2550                         /*
2551                            Bus Device Reset CCBs have the Command field non-NULL only when a
2552                            Bus Device Reset was requested for a Command that did not have a
2553                            currently active CCB in the Host Adapter (i.e., a Synchronous
2554                            Bus Device Reset), and hence would not have its Completion Routine
2555                            called otherwise.
2556                          */
2557                         while (Command != NULL) {
2558                                 struct scsi_cmnd *NextCommand = Command->reset_chain;
2559                                 Command->reset_chain = NULL;
2560                                 Command->result = DID_RESET << 16;
2561                                 Command->scsi_done(Command);
2562                                 Command = NextCommand;
2563                         }
2564 #endif
2565                         /*
2566                            Iterate over the CCBs for this Host Adapter performing completion
2567                            processing for any CCBs marked as Reset for this Target.
2568                          */
2569                         for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
2570                                 if (CCB->Status == BusLogic_CCB_Reset && CCB->TargetID == TargetID) {
2571                                         Command = CCB->Command;
2572                                         BusLogic_DeallocateCCB(CCB);
2573                                         HostAdapter->ActiveCommands[TargetID]--;
2574                                         Command->result = DID_RESET << 16;
2575                                         Command->scsi_done(Command);
2576                                 }
2577                         HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
2578                 } else {
2579                         /*
2580                            Translate the Completion Code, Host Adapter Status, and Target
2581                            Device Status into a SCSI Subsystem Result Code.
2582                          */
2583                         switch (CCB->CompletionCode) {
2584                         case BusLogic_IncomingMailboxFree:
2585                         case BusLogic_AbortedCommandNotFound:
2586                         case BusLogic_InvalidCCB:
2587                                 BusLogic_Warning("CCB #%ld to Target %d Impossible State\n", HostAdapter, CCB->SerialNumber, CCB->TargetID);
2588                                 break;
2589                         case BusLogic_CommandCompletedWithoutError:
2590                                 HostAdapter->TargetStatistics[CCB->TargetID]
2591                                     .CommandsCompleted++;
2592                                 HostAdapter->TargetFlags[CCB->TargetID]
2593                                     .CommandSuccessfulFlag = true;
2594                                 Command->result = DID_OK << 16;
2595                                 break;
2596                         case BusLogic_CommandAbortedAtHostRequest:
2597                                 BusLogic_Warning("CCB #%ld to Target %d Aborted\n", HostAdapter, CCB->SerialNumber, CCB->TargetID);
2598                                 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[CCB->TargetID]
2599                                                                .CommandAbortsCompleted);
2600                                 Command->result = DID_ABORT << 16;
2601                                 break;
2602                         case BusLogic_CommandCompletedWithError:
2603                                 Command->result = BusLogic_ComputeResultCode(HostAdapter, CCB->HostAdapterStatus, CCB->TargetDeviceStatus);
2604                                 if (CCB->HostAdapterStatus != BusLogic_SCSISelectionTimeout) {
2605                                         HostAdapter->TargetStatistics[CCB->TargetID]
2606                                             .CommandsCompleted++;
2607                                         if (BusLogic_GlobalOptions.TraceErrors) {
2608                                                 int i;
2609                                                 BusLogic_Notice("CCB #%ld Target %d: Result %X Host "
2610                                                                 "Adapter Status %02X " "Target Status %02X\n", HostAdapter, CCB->SerialNumber, CCB->TargetID, Command->result, CCB->HostAdapterStatus, CCB->TargetDeviceStatus);
2611                                                 BusLogic_Notice("CDB   ", HostAdapter);
2612                                                 for (i = 0; i < CCB->CDB_Length; i++)
2613                                                         BusLogic_Notice(" %02X", HostAdapter, CCB->CDB[i]);
2614                                                 BusLogic_Notice("\n", HostAdapter);
2615                                                 BusLogic_Notice("Sense ", HostAdapter);
2616                                                 for (i = 0; i < CCB->SenseDataLength; i++)
2617                                                         BusLogic_Notice(" %02X", HostAdapter, Command->sense_buffer[i]);
2618                                                 BusLogic_Notice("\n", HostAdapter);
2619                                         }
2620                                 }
2621                                 break;
2622                         }
2623                         /*
2624                            When an INQUIRY command completes normally, save the
2625                            CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2626                            Wide Data Transfers Supported) bits.
2627                          */
2628                         if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) {
2629                                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID];
2630                                 struct SCSI_Inquiry *InquiryResult = (struct SCSI_Inquiry *) Command->request_buffer;
2631                                 TargetFlags->TargetExists = true;
2632                                 TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue;
2633                                 TargetFlags->WideTransfersSupported = InquiryResult->WBus16;
2634                         }
2635                         /*
2636                            Place CCB back on the Host Adapter's free list.
2637                          */
2638                         BusLogic_DeallocateCCB(CCB);
2639                         /*
2640                            Call the SCSI Command Completion Routine.
2641                          */
2642                         Command->scsi_done(Command);
2643                 }
2644         }
2645         HostAdapter->ProcessCompletedCCBsActive = false;
2646 }
2647
2648
2649 /*
2650   BusLogic_InterruptHandler handles hardware interrupts from BusLogic Host
2651   Adapters.
2652 */
2653
2654 static irqreturn_t BusLogic_InterruptHandler(int IRQ_Channel, void *DeviceIdentifier)
2655 {
2656         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) DeviceIdentifier;
2657         unsigned long ProcessorFlags;
2658         /*
2659            Acquire exclusive access to Host Adapter.
2660          */
2661         spin_lock_irqsave(HostAdapter->SCSI_Host->host_lock, ProcessorFlags);
2662         /*
2663            Handle Interrupts appropriately for each Host Adapter type.
2664          */
2665         if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
2666                 union BusLogic_InterruptRegister InterruptRegister;
2667                 /*
2668                    Read the Host Adapter Interrupt Register.
2669                  */
2670                 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
2671                 if (InterruptRegister.ir.InterruptValid) {
2672                         /*
2673                            Acknowledge the interrupt and reset the Host Adapter
2674                            Interrupt Register.
2675                          */
2676                         BusLogic_InterruptReset(HostAdapter);
2677                         /*
2678                            Process valid External SCSI Bus Reset and Incoming Mailbox
2679                            Loaded Interrupts.  Command Complete Interrupts are noted,
2680                            and Outgoing Mailbox Available Interrupts are ignored, as
2681                            they are never enabled.
2682                          */
2683                         if (InterruptRegister.ir.ExternalBusReset)
2684                                 HostAdapter->HostAdapterExternalReset = true;
2685                         else if (InterruptRegister.ir.IncomingMailboxLoaded)
2686                                 BusLogic_ScanIncomingMailboxes(HostAdapter);
2687                         else if (InterruptRegister.ir.CommandComplete)
2688                                 HostAdapter->HostAdapterCommandCompleted = true;
2689                 }
2690         } else {
2691                 /*
2692                    Check if there is a pending interrupt for this Host Adapter.
2693                  */
2694                 if (FlashPoint_InterruptPending(HostAdapter->CardHandle))
2695                         switch (FlashPoint_HandleInterrupt(HostAdapter->CardHandle)) {
2696                         case FlashPoint_NormalInterrupt:
2697                                 break;
2698                         case FlashPoint_ExternalBusReset:
2699                                 HostAdapter->HostAdapterExternalReset = true;
2700                                 break;
2701                         case FlashPoint_InternalError:
2702                                 BusLogic_Warning("Internal FlashPoint Error detected" " - Resetting Host Adapter\n", HostAdapter);
2703                                 HostAdapter->HostAdapterInternalError = true;
2704                                 break;
2705                         }
2706         }
2707         /*
2708            Process any completed CCBs.
2709          */
2710         if (HostAdapter->FirstCompletedCCB != NULL)
2711                 BusLogic_ProcessCompletedCCBs(HostAdapter);
2712         /*
2713            Reset the Host Adapter if requested.
2714          */
2715         if (HostAdapter->HostAdapterExternalReset) {
2716                 BusLogic_Warning("Resetting %s due to External SCSI Bus Reset\n", HostAdapter, HostAdapter->FullModelName);
2717                 BusLogic_IncrementErrorCounter(&HostAdapter->ExternalHostAdapterResets);
2718                 BusLogic_ResetHostAdapter(HostAdapter, false);
2719                 HostAdapter->HostAdapterExternalReset = false;
2720         } else if (HostAdapter->HostAdapterInternalError) {
2721                 BusLogic_Warning("Resetting %s due to Host Adapter Internal Error\n", HostAdapter, HostAdapter->FullModelName);
2722                 BusLogic_IncrementErrorCounter(&HostAdapter->HostAdapterInternalErrors);
2723                 BusLogic_ResetHostAdapter(HostAdapter, true);
2724                 HostAdapter->HostAdapterInternalError = false;
2725         }
2726         /*
2727            Release exclusive access to Host Adapter.
2728          */
2729         spin_unlock_irqrestore(HostAdapter->SCSI_Host->host_lock, ProcessorFlags);
2730         return IRQ_HANDLED;
2731 }
2732
2733
2734 /*
2735   BusLogic_WriteOutgoingMailbox places CCB and Action Code into an Outgoing
2736   Mailbox for execution by Host Adapter.  The Host Adapter's Lock should
2737   already have been acquired by the caller.
2738 */
2739
2740 static bool BusLogic_WriteOutgoingMailbox(struct BusLogic_HostAdapter
2741                                              *HostAdapter, enum BusLogic_ActionCode ActionCode, struct BusLogic_CCB *CCB)
2742 {
2743         struct BusLogic_OutgoingMailbox *NextOutgoingMailbox;
2744         NextOutgoingMailbox = HostAdapter->NextOutgoingMailbox;
2745         if (NextOutgoingMailbox->ActionCode == BusLogic_OutgoingMailboxFree) {
2746                 CCB->Status = BusLogic_CCB_Active;
2747                 /*
2748                    The CCB field must be written before the Action Code field since
2749                    the Host Adapter is operating asynchronously and the locking code
2750                    does not protect against simultaneous access by the Host Adapter.
2751                  */
2752                 NextOutgoingMailbox->CCB = CCB->DMA_Handle;
2753                 NextOutgoingMailbox->ActionCode = ActionCode;
2754                 BusLogic_StartMailboxCommand(HostAdapter);
2755                 if (++NextOutgoingMailbox > HostAdapter->LastOutgoingMailbox)
2756                         NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox;
2757                 HostAdapter->NextOutgoingMailbox = NextOutgoingMailbox;
2758                 if (ActionCode == BusLogic_MailboxStartCommand) {
2759                         HostAdapter->ActiveCommands[CCB->TargetID]++;
2760                         if (CCB->Opcode != BusLogic_BusDeviceReset)
2761                                 HostAdapter->TargetStatistics[CCB->TargetID].CommandsAttempted++;
2762                 }
2763                 return true;
2764         }
2765         return false;
2766 }
2767
2768 /* Error Handling (EH) support */
2769
2770 static int BusLogic_host_reset(struct scsi_cmnd * SCpnt)
2771 {
2772         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) SCpnt->device->host->hostdata;
2773
2774         unsigned int id = SCpnt->device->id;
2775         struct BusLogic_TargetStatistics *stats = &HostAdapter->TargetStatistics[id];
2776         int rc;
2777
2778         spin_lock_irq(SCpnt->device->host->host_lock);
2779
2780         BusLogic_IncrementErrorCounter(&stats->HostAdapterResetsRequested);
2781
2782         rc = BusLogic_ResetHostAdapter(HostAdapter, false);
2783         spin_unlock_irq(SCpnt->device->host->host_lock);
2784         return rc;
2785 }
2786
2787 /*
2788   BusLogic_QueueCommand creates a CCB for Command and places it into an
2789   Outgoing Mailbox for execution by the associated Host Adapter.
2790 */
2791
2792 static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRoutine) (struct scsi_cmnd *))
2793 {
2794         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata;
2795         struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[Command->device->id];
2796         struct BusLogic_TargetStatistics *TargetStatistics = HostAdapter->TargetStatistics;
2797         unsigned char *CDB = Command->cmnd;
2798         int CDB_Length = Command->cmd_len;
2799         int TargetID = Command->device->id;
2800         int LogicalUnit = Command->device->lun;
2801         void *BufferPointer = Command->request_buffer;
2802         int BufferLength = Command->request_bufflen;
2803         int SegmentCount = Command->use_sg;
2804         struct BusLogic_CCB *CCB;
2805         /*
2806            SCSI REQUEST_SENSE commands will be executed automatically by the Host
2807            Adapter for any errors, so they should not be executed explicitly unless
2808            the Sense Data is zero indicating that no error occurred.
2809          */
2810         if (CDB[0] == REQUEST_SENSE && Command->sense_buffer[0] != 0) {
2811                 Command->result = DID_OK << 16;
2812                 CompletionRoutine(Command);
2813                 return 0;
2814         }
2815         /*
2816            Allocate a CCB from the Host Adapter's free list.  In the unlikely event
2817            that there are none available and memory allocation fails, wait 1 second
2818            and try again.  If that fails, the Host Adapter is probably hung so signal
2819            an error as a Host Adapter Hard Reset should be initiated soon.
2820          */
2821         CCB = BusLogic_AllocateCCB(HostAdapter);
2822         if (CCB == NULL) {
2823                 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
2824                 BusLogic_Delay(1);
2825                 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
2826                 CCB = BusLogic_AllocateCCB(HostAdapter);
2827                 if (CCB == NULL) {
2828                         Command->result = DID_ERROR << 16;
2829                         CompletionRoutine(Command);
2830                         return 0;
2831                 }
2832         }
2833         /*
2834            Initialize the fields in the BusLogic Command Control Block (CCB).
2835          */
2836         if (SegmentCount == 0 && BufferLength != 0) {
2837                 CCB->Opcode = BusLogic_InitiatorCCB;
2838                 CCB->DataLength = BufferLength;
2839                 CCB->DataPointer = pci_map_single(HostAdapter->PCI_Device,
2840                                 BufferPointer, BufferLength,
2841                                 Command->sc_data_direction);
2842         } else if (SegmentCount != 0) {
2843                 struct scatterlist *ScatterList = (struct scatterlist *) BufferPointer;
2844                 int Segment, Count;
2845
2846                 Count = pci_map_sg(HostAdapter->PCI_Device, ScatterList, SegmentCount,
2847                                 Command->sc_data_direction);
2848                 CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather;
2849                 CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment);
2850                 if (BusLogic_MultiMasterHostAdapterP(HostAdapter))
2851                         CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB);
2852                 else
2853                         CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList);
2854                 for (Segment = 0; Segment < Count; Segment++) {
2855                         CCB->ScatterGatherList[Segment].SegmentByteCount = sg_dma_len(ScatterList + Segment);
2856                         CCB->ScatterGatherList[Segment].SegmentDataPointer = sg_dma_address(ScatterList + Segment);
2857                 }
2858         } else {
2859                 CCB->Opcode = BusLogic_InitiatorCCB;
2860                 CCB->DataLength = BufferLength;
2861                 CCB->DataPointer = 0;
2862         }
2863         switch (CDB[0]) {
2864         case READ_6:
2865         case READ_10:
2866                 CCB->DataDirection = BusLogic_DataInLengthChecked;
2867                 TargetStatistics[TargetID].ReadCommands++;
2868                 BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesRead, BufferLength);
2869                 BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].ReadCommandSizeBuckets, BufferLength);
2870                 break;
2871         case WRITE_6:
2872         case WRITE_10:
2873                 CCB->DataDirection = BusLogic_DataOutLengthChecked;
2874                 TargetStatistics[TargetID].WriteCommands++;
2875                 BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesWritten, BufferLength);
2876                 BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].WriteCommandSizeBuckets, BufferLength);
2877                 break;
2878         default:
2879                 CCB->DataDirection = BusLogic_UncheckedDataTransfer;
2880                 break;
2881         }
2882         CCB->CDB_Length = CDB_Length;
2883         CCB->HostAdapterStatus = 0;
2884         CCB->TargetDeviceStatus = 0;
2885         CCB->TargetID = TargetID;
2886         CCB->LogicalUnit = LogicalUnit;
2887         CCB->TagEnable = false;
2888         CCB->LegacyTagEnable = false;
2889         /*
2890            BusLogic recommends that after a Reset the first couple of commands that
2891            are sent to a Target Device be sent in a non Tagged Queue fashion so that
2892            the Host Adapter and Target Device can establish Synchronous and Wide
2893            Transfer before Queue Tag messages can interfere with the Synchronous and
2894            Wide Negotiation messages.  By waiting to enable Tagged Queuing until after
2895            the first BusLogic_MaxTaggedQueueDepth commands have been queued, it is
2896            assured that after a Reset any pending commands are requeued before Tagged
2897            Queuing is enabled and that the Tagged Queuing message will not occur while
2898            the partition table is being printed.  In addition, some devices do not
2899            properly handle the transition from non-tagged to tagged commands, so it is
2900            necessary to wait until there are no pending commands for a target device
2901            before queuing tagged commands.
2902          */
2903         if (HostAdapter->CommandsSinceReset[TargetID]++ >=
2904             BusLogic_MaxTaggedQueueDepth && !TargetFlags->TaggedQueuingActive && HostAdapter->ActiveCommands[TargetID] == 0 && TargetFlags->TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) {
2905                 TargetFlags->TaggedQueuingActive = true;
2906                 BusLogic_Notice("Tagged Queuing now active for Target %d\n", HostAdapter, TargetID);
2907         }
2908         if (TargetFlags->TaggedQueuingActive) {
2909                 enum BusLogic_QueueTag QueueTag = BusLogic_SimpleQueueTag;
2910                 /*
2911                    When using Tagged Queuing with Simple Queue Tags, it appears that disk
2912                    drive controllers do not guarantee that a queued command will not
2913                    remain in a disconnected state indefinitely if commands that read or
2914                    write nearer the head position continue to arrive without interruption.
2915                    Therefore, for each Target Device this driver keeps track of the last
2916                    time either the queue was empty or an Ordered Queue Tag was issued.  If
2917                    more than 4 seconds (one fifth of the 20 second disk timeout) have
2918                    elapsed since this last sequence point, this command will be issued
2919                    with an Ordered Queue Tag rather than a Simple Queue Tag, which forces
2920                    the Target Device to complete all previously queued commands before
2921                    this command may be executed.
2922                  */
2923                 if (HostAdapter->ActiveCommands[TargetID] == 0)
2924                         HostAdapter->LastSequencePoint[TargetID] = jiffies;
2925                 else if (time_after(jiffies, HostAdapter->LastSequencePoint[TargetID] + 4 * HZ)) {
2926                         HostAdapter->LastSequencePoint[TargetID] = jiffies;
2927                         QueueTag = BusLogic_OrderedQueueTag;
2928                 }
2929                 if (HostAdapter->ExtendedLUNSupport) {
2930                         CCB->TagEnable = true;
2931                         CCB->QueueTag = QueueTag;
2932                 } else {
2933                         CCB->LegacyTagEnable = true;
2934                         CCB->LegacyQueueTag = QueueTag;
2935                 }
2936         }
2937         memcpy(CCB->CDB, CDB, CDB_Length);
2938         CCB->SenseDataLength = sizeof(Command->sense_buffer);
2939         CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
2940         CCB->Command = Command;
2941         Command->scsi_done = CompletionRoutine;
2942         if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
2943                 /*
2944                    Place the CCB in an Outgoing Mailbox.  The higher levels of the SCSI
2945                    Subsystem should not attempt to queue more commands than can be placed
2946                    in Outgoing Mailboxes, so there should always be one free.  In the
2947                    unlikely event that there are none available, wait 1 second and try
2948                    again.  If that fails, the Host Adapter is probably hung so signal an
2949                    error as a Host Adapter Hard Reset should be initiated soon.
2950                  */
2951                 if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
2952                         spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
2953                         BusLogic_Warning("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", HostAdapter);
2954                         BusLogic_Delay(1);
2955                         spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
2956                         if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
2957                                 BusLogic_Warning("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", HostAdapter);
2958                                 BusLogic_DeallocateCCB(CCB);
2959                                 Command->result = DID_ERROR << 16;
2960                                 Command->scsi_done(Command);
2961                         }
2962                 }
2963         } else {
2964                 /*
2965                    Call the FlashPoint SCCB Manager to start execution of the CCB.
2966                  */
2967                 CCB->Status = BusLogic_CCB_Active;
2968                 HostAdapter->ActiveCommands[TargetID]++;
2969                 TargetStatistics[TargetID].CommandsAttempted++;
2970                 FlashPoint_StartCCB(HostAdapter->CardHandle, CCB);
2971                 /*
2972                    The Command may have already completed and BusLogic_QueueCompletedCCB
2973                    been called, or it may still be pending.
2974                  */
2975                 if (CCB->Status == BusLogic_CCB_Completed)
2976                         BusLogic_ProcessCompletedCCBs(HostAdapter);
2977         }
2978         return 0;
2979 }
2980
2981
2982 #if 0
2983 /*
2984   BusLogic_AbortCommand aborts Command if possible.
2985 */
2986
2987 static int BusLogic_AbortCommand(struct scsi_cmnd *Command)
2988 {
2989         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata;
2990
2991         int TargetID = Command->device->id;
2992         struct BusLogic_CCB *CCB;
2993         BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsRequested);
2994         /*
2995            Attempt to find an Active CCB for this Command.  If no Active CCB for this
2996            Command is found, then no Abort is necessary.
2997          */
2998         for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
2999                 if (CCB->Command == Command)
3000                         break;
3001         if (CCB == NULL) {
3002                 BusLogic_Warning("Unable to Abort Command to Target %d - " "No CCB Found\n", HostAdapter, TargetID);
3003                 return SUCCESS;
3004         } else if (CCB->Status == BusLogic_CCB_Completed) {
3005                 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Completed\n", HostAdapter, TargetID);
3006                 return SUCCESS;
3007         } else if (CCB->Status == BusLogic_CCB_Reset) {
3008                 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Reset\n", HostAdapter, TargetID);
3009                 return SUCCESS;
3010         }
3011         if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
3012                 /*
3013                    Attempt to Abort this CCB.  MultiMaster Firmware versions prior to 5.xx
3014                    do not generate Abort Tag messages, but only generate the non-tagged
3015                    Abort message.  Since non-tagged commands are not sent by the Host
3016                    Adapter until the queue of outstanding tagged commands has completed,
3017                    and the Abort message is treated as a non-tagged command, it is
3018                    effectively impossible to abort commands when Tagged Queuing is active.
3019                    Firmware version 5.xx does generate Abort Tag messages, so it is
3020                    possible to abort commands when Tagged Queuing is active.
3021                  */
3022                 if (HostAdapter->TargetFlags[TargetID].TaggedQueuingActive && HostAdapter->FirmwareVersion[0] < '5') {
3023                         BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "Abort Tag Not Supported\n", HostAdapter, CCB->SerialNumber, TargetID);
3024                         return FAILURE;
3025                 } else if (BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxAbortCommand, CCB)) {
3026                         BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3027                         BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3028                         return SUCCESS;
3029                 } else {
3030                         BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "No Outgoing Mailboxes\n", HostAdapter, CCB->SerialNumber, TargetID);
3031                         return FAILURE;
3032                 }
3033         } else {
3034                 /*
3035                    Call the FlashPoint SCCB Manager to abort execution of the CCB.
3036                  */
3037                 BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3038                 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3039                 FlashPoint_AbortCCB(HostAdapter->CardHandle, CCB);
3040                 /*
3041                    The Abort may have already been completed and
3042                    BusLogic_QueueCompletedCCB been called, or it
3043                    may still be pending.
3044                  */
3045                 if (CCB->Status == BusLogic_CCB_Completed) {
3046                         BusLogic_ProcessCompletedCCBs(HostAdapter);
3047                 }
3048                 return SUCCESS;
3049         }
3050         return SUCCESS;
3051 }
3052
3053 #endif
3054 /*
3055   BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all
3056   currently executing SCSI Commands as having been Reset.
3057 */
3058
3059 static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *HostAdapter, bool HardReset)
3060 {
3061         struct BusLogic_CCB *CCB;
3062         int TargetID;
3063
3064         /*
3065          * Attempt to Reset and Reinitialize the Host Adapter.
3066          */
3067
3068         if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(HostAdapter))) {
3069                 BusLogic_Error("Resetting %s Failed\n", HostAdapter, HostAdapter->FullModelName);
3070                 return FAILURE;
3071         }
3072
3073         /*
3074          * Deallocate all currently executing CCBs.
3075          */
3076
3077         for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
3078                 if (CCB->Status == BusLogic_CCB_Active)
3079                         BusLogic_DeallocateCCB(CCB);
3080         /*
3081          * Wait a few seconds between the Host Adapter Hard Reset which
3082          * initiates a SCSI Bus Reset and issuing any SCSI Commands.  Some
3083          * SCSI devices get confused if they receive SCSI Commands too soon
3084          * after a SCSI Bus Reset.
3085          */
3086
3087         if (HardReset) {
3088                 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
3089                 BusLogic_Delay(HostAdapter->BusSettleTime);
3090                 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
3091         }
3092
3093         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3094                 HostAdapter->LastResetAttempted[TargetID] = jiffies;
3095                 HostAdapter->LastResetCompleted[TargetID] = jiffies;
3096         }
3097         return SUCCESS;
3098 }
3099
3100 /*
3101   BusLogic_BIOSDiskParameters returns the Heads/Sectors/Cylinders BIOS Disk
3102   Parameters for Disk.  The default disk geometry is 64 heads, 32 sectors, and
3103   the appropriate number of cylinders so as not to exceed drive capacity.  In
3104   order for disks equal to or larger than 1 GB to be addressable by the BIOS
3105   without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3106   may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3107   series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3108   series MultiMaster Host Adapters.  With Extended Translation enabled, drives
3109   between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3110   heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3111   geometry of 255 heads and 63 sectors.  However, if the BIOS detects that the
3112   Extended Translation setting does not match the geometry in the partition
3113   table, then the translation inferred from the partition table will be used by
3114   the BIOS, and a warning may be displayed.
3115 */
3116
3117 static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_device *Device, sector_t capacity, int *Parameters)
3118 {
3119         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) sdev->host->hostdata;
3120         struct BIOS_DiskParameters *DiskParameters = (struct BIOS_DiskParameters *) Parameters;
3121         unsigned char *buf;
3122         if (HostAdapter->ExtendedTranslationEnabled && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */ ) {
3123                 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */ ) {
3124                         DiskParameters->Heads = 255;
3125                         DiskParameters->Sectors = 63;
3126                 } else {
3127                         DiskParameters->Heads = 128;
3128                         DiskParameters->Sectors = 32;
3129                 }
3130         } else {
3131                 DiskParameters->Heads = 64;
3132                 DiskParameters->Sectors = 32;
3133         }
3134         DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3135         buf = scsi_bios_ptable(Device);
3136         if (buf == NULL)
3137                 return 0;
3138         /*
3139            If the boot sector partition table flag is valid, search for a partition
3140            table entry whose end_head matches one of the standard BusLogic geometry
3141            translations (64/32, 128/32, or 255/63).
3142          */
3143         if (*(unsigned short *) (buf + 64) == 0xAA55) {
3144                 struct partition *FirstPartitionEntry = (struct partition *) buf;
3145                 struct partition *PartitionEntry = FirstPartitionEntry;
3146                 int SavedCylinders = DiskParameters->Cylinders, PartitionNumber;
3147                 unsigned char PartitionEntryEndHead = 0, PartitionEntryEndSector = 0;
3148                 for (PartitionNumber = 0; PartitionNumber < 4; PartitionNumber++) {
3149                         PartitionEntryEndHead = PartitionEntry->end_head;
3150                         PartitionEntryEndSector = PartitionEntry->end_sector & 0x3F;
3151                         if (PartitionEntryEndHead == 64 - 1) {
3152                                 DiskParameters->Heads = 64;
3153                                 DiskParameters->Sectors = 32;
3154                                 break;
3155                         } else if (PartitionEntryEndHead == 128 - 1) {
3156                                 DiskParameters->Heads = 128;
3157                                 DiskParameters->Sectors = 32;
3158                                 break;
3159                         } else if (PartitionEntryEndHead == 255 - 1) {
3160                                 DiskParameters->Heads = 255;
3161                                 DiskParameters->Sectors = 63;
3162                                 break;
3163                         }
3164                         PartitionEntry++;
3165                 }
3166                 if (PartitionNumber == 4) {
3167                         PartitionEntryEndHead = FirstPartitionEntry->end_head;
3168                         PartitionEntryEndSector = FirstPartitionEntry->end_sector & 0x3F;
3169                 }
3170                 DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3171                 if (PartitionNumber < 4 && PartitionEntryEndSector == DiskParameters->Sectors) {
3172                         if (DiskParameters->Cylinders != SavedCylinders)
3173                                 BusLogic_Warning("Adopting Geometry %d/%d from Partition Table\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3174                 } else if (PartitionEntryEndHead > 0 || PartitionEntryEndSector > 0) {
3175                         BusLogic_Warning("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", HostAdapter, PartitionEntryEndHead + 1, PartitionEntryEndSector);
3176                         BusLogic_Warning("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3177                 }
3178         }
3179         kfree(buf);
3180         return 0;
3181 }
3182
3183
3184 /*
3185   BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3186 */
3187
3188 static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag)
3189 {
3190         struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata;
3191         struct BusLogic_TargetStatistics *TargetStatistics;
3192         int TargetID, Length;
3193         char *Buffer;
3194
3195         TargetStatistics = HostAdapter->TargetStatistics;
3196         if (WriteFlag) {
3197                 HostAdapter->ExternalHostAdapterResets = 0;
3198                 HostAdapter->HostAdapterInternalErrors = 0;
3199                 memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics));
3200                 return 0;
3201         }
3202         Buffer = HostAdapter->MessageBuffer;
3203         Length = HostAdapter->MessageBufferLength;
3204         Length += sprintf(&Buffer[Length], "\n\
3205 Current Driver Queue Depth:     %d\n\
3206 Currently Allocated CCBs:       %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs);
3207         Length += sprintf(&Buffer[Length], "\n\n\
3208                            DATA TRANSFER STATISTICS\n\
3209 \n\
3210 Target  Tagged Queuing  Queue Depth  Active  Attempted  Completed\n\
3211 ======  ==============  ===========  ======  =========  =========\n");
3212         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3213                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3214                 if (!TargetFlags->TargetExists)
3215                         continue;
3216                 Length += sprintf(&Buffer[Length], "  %2d       %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? "    Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID)
3217                                                                                                                                                                     ? "  Permitted" : "   Disabled"))
3218                                                                           : "Not Supported"));
3219                 Length += sprintf(&Buffer[Length],
3220                                   "         %3d       %3u    %9u        %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted);
3221         }
3222         Length += sprintf(&Buffer[Length], "\n\
3223 Target  Read Commands  Write Commands   Total Bytes Read    Total Bytes Written\n\
3224 ======  =============  ==============  ===================  ===================\n");
3225         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3226                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3227                 if (!TargetFlags->TargetExists)
3228                         continue;
3229                 Length += sprintf(&Buffer[Length], "  %2d         %9u    %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands);
3230                 if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0)
3231                         Length += sprintf(&Buffer[Length], "     %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units);
3232                 else
3233                         Length += sprintf(&Buffer[Length], "            %9u", TargetStatistics[TargetID].TotalBytesRead.Units);
3234                 if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0)
3235                         Length += sprintf(&Buffer[Length], "   %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units);
3236                 else
3237                         Length += sprintf(&Buffer[Length], "         %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units);
3238         }
3239         Length += sprintf(&Buffer[Length], "\n\
3240 Target  Command    0-1KB      1-2KB      2-4KB      4-8KB     8-16KB\n\
3241 ======  =======  =========  =========  =========  =========  =========\n");
3242         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3243                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3244                 if (!TargetFlags->TargetExists)
3245                         continue;
3246                 Length +=
3247                     sprintf(&Buffer[Length],
3248                             "  %2d       Read    %9u  %9u  %9u  %9u  %9u\n", TargetID,
3249                             TargetStatistics[TargetID].ReadCommandSizeBuckets[0],
3250                             TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]);
3251                 Length +=
3252                     sprintf(&Buffer[Length],
3253                             "  %2d       Write   %9u  %9u  %9u  %9u  %9u\n", TargetID,
3254                             TargetStatistics[TargetID].WriteCommandSizeBuckets[0],
3255                             TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]);
3256         }
3257         Length += sprintf(&Buffer[Length], "\n\
3258 Target  Command   16-32KB    32-64KB   64-128KB   128-256KB   256KB+\n\
3259 ======  =======  =========  =========  =========  =========  =========\n");
3260         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3261                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3262                 if (!TargetFlags->TargetExists)
3263                         continue;
3264                 Length +=
3265                     sprintf(&Buffer[Length],
3266                             "  %2d       Read    %9u  %9u  %9u  %9u  %9u\n", TargetID,
3267                             TargetStatistics[TargetID].ReadCommandSizeBuckets[5],
3268                             TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]);
3269                 Length +=
3270                     sprintf(&Buffer[Length],
3271                             "  %2d       Write   %9u  %9u  %9u  %9u  %9u\n", TargetID,
3272                             TargetStatistics[TargetID].WriteCommandSizeBuckets[5],
3273                             TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]);
3274         }
3275         Length += sprintf(&Buffer[Length], "\n\n\
3276                            ERROR RECOVERY STATISTICS\n\
3277 \n\
3278           Command Aborts      Bus Device Resets   Host Adapter Resets\n\
3279 Target  Requested Completed  Requested Completed  Requested Completed\n\
3280   ID    \\\\\\\\ Attempted ////  \\\\\\\\ Attempted ////  \\\\\\\\ Attempted ////\n\
3281 ======   ===== ===== =====    ===== ===== =====    ===== ===== =====\n");
3282         for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3283                 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3284                 if (!TargetFlags->TargetExists)
3285                         continue;
3286                 Length += sprintf(&Buffer[Length], "\
3287   %2d    %5d %5d %5d    %5d %5d %5d        %5d %5d %5d\n", TargetID, TargetStatistics[TargetID].CommandAbortsRequested, TargetStatistics[TargetID].CommandAbortsAttempted, TargetStatistics[TargetID].CommandAbortsCompleted, TargetStatistics[TargetID].BusDeviceResetsRequested, TargetStatistics[TargetID].BusDeviceResetsAttempted, TargetStatistics[TargetID].BusDeviceResetsCompleted, TargetStatistics[TargetID].HostAdapterResetsRequested, TargetStatistics[TargetID].HostAdapterResetsAttempted, TargetStatistics[TargetID].HostAdapterResetsCompleted);
3288         }
3289         Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets);
3290         Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors);
3291         if (Length >= BusLogic_MessageBufferSize)
3292                 BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize);
3293         if ((Length -= Offset) <= 0)
3294                 return 0;
3295         if (Length >= BytesAvailable)
3296                 Length = BytesAvailable;
3297         memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length);
3298         *StartPointer = ProcBuffer;
3299         return Length;
3300 }
3301
3302
3303 /*
3304   BusLogic_Message prints Driver Messages.
3305 */
3306
3307 static void BusLogic_Message(enum BusLogic_MessageLevel MessageLevel, char *Format, struct BusLogic_HostAdapter *HostAdapter, ...)
3308 {
3309         static char Buffer[BusLogic_LineBufferSize];
3310         static bool BeginningOfLine = true;
3311         va_list Arguments;
3312         int Length = 0;
3313         va_start(Arguments, HostAdapter);
3314         Length = vsprintf(Buffer, Format, Arguments);
3315         va_end(Arguments);
3316         if (MessageLevel == BusLogic_AnnounceLevel) {
3317                 static int AnnouncementLines = 0;
3318                 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3319                 HostAdapter->MessageBufferLength += Length;
3320                 if (++AnnouncementLines <= 2)
3321                         printk("%sscsi: %s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3322         } else if (MessageLevel == BusLogic_InfoLevel) {
3323                 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3324                 HostAdapter->MessageBufferLength += Length;
3325                 if (BeginningOfLine) {
3326                         if (Buffer[0] != '\n' || Length > 1)
3327                                 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3328                 } else
3329                         printk("%s", Buffer);
3330         } else {
3331                 if (BeginningOfLine) {
3332                         if (HostAdapter != NULL && HostAdapter->HostAdapterInitialized)
3333                                 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3334                         else
3335                                 printk("%s%s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3336                 } else
3337                         printk("%s", Buffer);
3338         }
3339         BeginningOfLine = (Buffer[Length - 1] == '\n');
3340 }
3341
3342
3343 /*
3344   BusLogic_ParseKeyword parses an individual option keyword.  It returns true
3345   and updates the pointer if the keyword is recognized and false otherwise.
3346 */
3347
3348 static bool __init BusLogic_ParseKeyword(char **StringPointer, char *Keyword)
3349 {
3350         char *Pointer = *StringPointer;
3351         while (*Keyword != '\0') {
3352                 char StringChar = *Pointer++;
3353                 char KeywordChar = *Keyword++;
3354                 if (StringChar >= 'A' && StringChar <= 'Z')
3355                         StringChar += 'a' - 'Z';
3356                 if (KeywordChar >= 'A' && KeywordChar <= 'Z')
3357                         KeywordChar += 'a' - 'Z';
3358                 if (StringChar != KeywordChar)
3359                         return false;
3360         }
3361         *StringPointer = Pointer;
3362         return true;
3363 }
3364
3365
3366 /*
3367   BusLogic_ParseDriverOptions handles processing of BusLogic Driver Options
3368   specifications.
3369
3370   BusLogic Driver Options may be specified either via the Linux Kernel Command
3371   Line or via the Loadable Kernel Module Installation Facility.  Driver Options
3372   for multiple host adapters may be specified either by separating the option
3373   strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3374   command line.  Individual option specifications for a single host adapter are
3375   separated by commas.  The Probing and Debugging Options apply to all host
3376   adapters whereas the remaining options apply individually only to the
3377   selected host adapter.
3378
3379   The BusLogic Driver Probing Options are described in
3380   <file:Documentation/scsi/BusLogic.txt>.
3381 */
3382
3383 static int __init BusLogic_ParseDriverOptions(char *OptionsString)
3384 {
3385         while (true) {
3386                 struct BusLogic_DriverOptions *DriverOptions = &BusLogic_DriverOptions[BusLogic_DriverOptionsCount++];
3387                 int TargetID;
3388                 memset(DriverOptions, 0, sizeof(struct BusLogic_DriverOptions));
3389                 while (*OptionsString != '\0' && *OptionsString != ';') {
3390                         /* Probing Options. */
3391                         if (BusLogic_ParseKeyword(&OptionsString, "IO:")) {
3392                                 unsigned long IO_Address = simple_strtoul(OptionsString, &OptionsString, 0);
3393                                 BusLogic_ProbeOptions.LimitedProbeISA = true;
3394                                 switch (IO_Address) {
3395                                 case 0x330:
3396                                         BusLogic_ProbeOptions.Probe330 = true;
3397                                         break;
3398                                 case 0x334:
3399                                         BusLogic_ProbeOptions.Probe334 = true;
3400                                         break;
3401                                 case 0x230:
3402                                         BusLogic_ProbeOptions.Probe230 = true;
3403                                         break;
3404                                 case 0x234:
3405                                         BusLogic_ProbeOptions.Probe234 = true;
3406                                         break;
3407                                 case 0x130:
3408                                         BusLogic_ProbeOptions.Probe130 = true;
3409                                         break;
3410                                 case 0x134:
3411                                         BusLogic_ProbeOptions.Probe134 = true;
3412                                         break;
3413                                 default:
3414                                         BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, IO_Address);
3415                                         return 0;
3416                                 }
3417                         } else if (BusLogic_ParseKeyword(&OptionsString, "NoProbeISA"))
3418                                 BusLogic_ProbeOptions.NoProbeISA = true;
3419                         else if (BusLogic_ParseKeyword(&OptionsString, "NoProbePCI"))
3420                                 BusLogic_ProbeOptions.NoProbePCI = true;
3421                         else if (BusLogic_ParseKeyword(&OptionsString, "NoProbe"))
3422                                 BusLogic_ProbeOptions.NoProbe = true;
3423                         else if (BusLogic_ParseKeyword(&OptionsString, "NoSortPCI"))
3424                                 BusLogic_ProbeOptions.NoSortPCI = true;
3425                         else if (BusLogic_ParseKeyword(&OptionsString, "MultiMasterFirst"))
3426                                 BusLogic_ProbeOptions.MultiMasterFirst = true;
3427                         else if (BusLogic_ParseKeyword(&OptionsString, "FlashPointFirst"))
3428                                 BusLogic_ProbeOptions.FlashPointFirst = true;
3429                         /* Tagged Queuing Options. */
3430                         else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:[") || BusLogic_ParseKeyword(&OptionsString, "QD:[")) {
3431                                 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) {
3432                                         unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3433                                         if (QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3434                                                 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3435                                                 return 0;
3436                                         }
3437                                         DriverOptions->QueueDepth[TargetID] = QueueDepth;
3438                                         if (*OptionsString == ',')
3439                                                 OptionsString++;
3440                                         else if (*OptionsString == ']')
3441                                                 break;
3442                                         else {
3443                                                 BusLogic_Error("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, OptionsString);
3444                                                 return 0;
3445                                         }
3446                                 }
3447                                 if (*OptionsString != ']') {
3448                                         BusLogic_Error("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, OptionsString);
3449                                         return 0;
3450                                 } else
3451                                         OptionsString++;
3452                         } else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:") || BusLogic_ParseKeyword(&OptionsString, "QD:")) {
3453                                 unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3454                                 if (QueueDepth == 0 || QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3455                                         BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3456                                         return 0;
3457                                 }
3458                                 DriverOptions->CommonQueueDepth = QueueDepth;
3459                                 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3460                                         DriverOptions->QueueDepth[TargetID] = QueueDepth;
3461                         } else if (BusLogic_ParseKeyword(&OptionsString, "TaggedQueuing:") || BusLogic_ParseKeyword(&OptionsString, "TQ:")) {
3462                                 if (BusLogic_ParseKeyword(&OptionsString, "Default")) {
3463                                         DriverOptions->TaggedQueuingPermitted = 0x0000;
3464                                         DriverOptions->TaggedQueuingPermittedMask = 0x0000;
3465                                 } else if (BusLogic_ParseKeyword(&OptionsString, "Enable")) {
3466                                         DriverOptions->TaggedQueuingPermitted = 0xFFFF;
3467                                         DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3468                                 } else if (BusLogic_ParseKeyword(&OptionsString, "Disable")) {
3469                                         DriverOptions->TaggedQueuingPermitted = 0x0000;
3470                                         DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3471                                 } else {
3472                                         unsigned short TargetBit;
3473                                         for (TargetID = 0, TargetBit = 1; TargetID < BusLogic_MaxTargetDevices; TargetID++, TargetBit <<= 1)
3474                                                 switch (*OptionsString++) {
3475                                                 case 'Y':
3476                                                         DriverOptions->TaggedQueuingPermitted |= TargetBit;
3477                                                         DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3478                                                         break;
3479                                                 case 'N':
3480                                                         DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3481                                                         DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3482                                                         break;
3483                                                 case 'X':
3484                                                         break;
3485                                                 default:
3486                                                         OptionsString--;
3487                                                         TargetID = BusLogic_MaxTargetDevices;
3488                                                         break;
3489                                                 }
3490                                 }
3491                         }
3492                         /* Miscellaneous Options. */
3493                         else if (BusLogic_ParseKeyword(&OptionsString, "BusSettleTime:") || BusLogic_ParseKeyword(&OptionsString, "BST:")) {
3494                                 unsigned short BusSettleTime = simple_strtoul(OptionsString, &OptionsString, 0);
3495                                 if (BusSettleTime > 5 * 60) {
3496                                         BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, BusSettleTime);
3497                                         return 0;
3498                                 }
3499                                 DriverOptions->BusSettleTime = BusSettleTime;
3500                         } else if (BusLogic_ParseKeyword(&OptionsString, "InhibitTargetInquiry"))
3501                                 DriverOptions->LocalOptions.InhibitTargetInquiry = true;
3502                         /* Debugging Options. */
3503                         else if (BusLogic_ParseKeyword(&OptionsString, "TraceProbe"))
3504                                 BusLogic_GlobalOptions.TraceProbe = true;
3505                         else if (BusLogic_ParseKeyword(&OptionsString, "TraceHardwareReset"))
3506                                 BusLogic_GlobalOptions.TraceHardwareReset = true;
3507                         else if (BusLogic_ParseKeyword(&OptionsString, "TraceConfiguration"))
3508                                 BusLogic_GlobalOptions.TraceConfiguration = true;
3509                         else if (BusLogic_ParseKeyword(&OptionsString, "TraceErrors"))
3510                                 BusLogic_GlobalOptions.TraceErrors = true;
3511                         else if (BusLogic_ParseKeyword(&OptionsString, "Debug")) {
3512                                 BusLogic_GlobalOptions.TraceProbe = true;
3513                                 BusLogic_GlobalOptions.TraceHardwareReset = true;
3514                                 BusLogic_GlobalOptions.TraceConfiguration = true;
3515                                 BusLogic_GlobalOptions.TraceErrors = true;
3516                         }
3517                         if (*OptionsString == ',')
3518                                 OptionsString++;
3519                         else if (*OptionsString != ';' && *OptionsString != '\0') {
3520                                 BusLogic_Error("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, OptionsString);
3521                                 *OptionsString = '\0';
3522                         }
3523                 }
3524                 if (!(BusLogic_DriverOptionsCount == 0 || BusLogic_ProbeInfoCount == 0 || BusLogic_DriverOptionsCount == BusLogic_ProbeInfoCount)) {
3525                         BusLogic_Error("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
3526                         return 0;
3527                 }
3528                 /*
3529                    Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3530                    multiple commands is not possible.
3531                  */
3532                 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3533                         if (DriverOptions->QueueDepth[TargetID] == 1) {
3534                                 unsigned short TargetBit = 1 << TargetID;
3535                                 DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3536                                 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3537                         }
3538                 if (*OptionsString == ';')
3539                         OptionsString++;
3540                 if (*OptionsString == '\0')
3541                         return 0;
3542         }
3543         return 1;
3544 }
3545
3546 /*
3547   Get it all started
3548 */
3549
3550 static struct scsi_host_template Bus_Logic_template = {
3551         .module = THIS_MODULE,
3552         .proc_name = "BusLogic",
3553         .proc_info = BusLogic_ProcDirectoryInfo,
3554         .name = "BusLogic",
3555         .info = BusLogic_DriverInfo,
3556         .queuecommand = BusLogic_QueueCommand,
3557         .slave_configure = BusLogic_SlaveConfigure,
3558         .bios_param = BusLogic_BIOSDiskParameters,
3559         .eh_host_reset_handler = BusLogic_host_reset,
3560 #if 0
3561         .eh_abort_handler = BusLogic_AbortCommand,
3562 #endif
3563         .unchecked_isa_dma = 1,
3564         .max_sectors = 128,
3565         .use_clustering = ENABLE_CLUSTERING,
3566 };
3567
3568 /*
3569   BusLogic_Setup handles processing of Kernel Command Line Arguments.
3570 */
3571
3572 static int __init BusLogic_Setup(char *str)
3573 {
3574         int ints[3];
3575
3576         (void) get_options(str, ARRAY_SIZE(ints), ints);
3577
3578         if (ints[0] != 0) {
3579                 BusLogic_Error("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
3580                 return 0;
3581         }
3582         if (str == NULL || *str == '\0')
3583                 return 0;
3584         return BusLogic_ParseDriverOptions(str);
3585 }
3586
3587 /*
3588  * Exit function.  Deletes all hosts associated with this driver.
3589  */
3590
3591 static void __exit BusLogic_exit(void)
3592 {
3593         struct BusLogic_HostAdapter *ha, *next;
3594
3595         list_for_each_entry_safe(ha, next, &BusLogic_host_list, host_list)
3596                 BusLogic_ReleaseHostAdapter(ha);
3597 }
3598
3599 __setup("BusLogic=", BusLogic_Setup);
3600
3601 static struct pci_device_id BusLogic_pci_tbl[] __devinitdata = {
3602         { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3603           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3604         { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3605           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3606         { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3607           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3608         { }
3609 };
3610 MODULE_DEVICE_TABLE(pci, BusLogic_pci_tbl);
3611
3612 module_init(BusLogic_init);
3613 module_exit(BusLogic_exit);