BusLogic958.c File Reference

#include "BusLogic958.h"

Include dependency graph for BusLogic958.c:

Go to the source code of this file.

Functions
ULONG NTAPI	DriverEntry (IN PVOID DriverObject, IN PVOID Argument2)
ULONG NTAPI	BT958HwFindAdapter (IN PVOID HwDeviceExtension, IN PVOID Context, IN PVOID BusInformation, IN PCHAR ArgumentString, IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo, OUT PBOOLEAN Again)
BOOLEAN	Buslogic_InitBT958 (PHW_DEVICE_EXTENSION deviceExtension, PPORT_CONFIGURATION_INFORMATION ConfigInfo)
BOOLEAN	BusLogic_ProbeHostAdapter (BusLogic_HostAdapter_T *HostAdapter)
BOOLEAN	BusLogic_HardwareResetHostAdapter (BusLogic_HostAdapter_T *HostAdapter, BOOLEAN HardReset)
BOOLEAN	BusLogic_CheckHostAdapter (BusLogic_HostAdapter_T *HostAdapter)
int	BusLogic_Command (BusLogic_HostAdapter_T *HostAdapter, BusLogic_OperationCode_T OperationCode, void *ParameterData, int ParameterLength, void *ReplyData, int ReplyLength)
BOOLEAN	BusLogic_ReadHostAdapterConfiguration (BusLogic_HostAdapter_T *HostAdapter)
BOOLEAN	BusLogic_InitializeHostAdapter (PHW_DEVICE_EXTENSION deviceExtension, PPORT_CONFIGURATION_INFORMATION ConfigInfo)
BOOLEAN	BusLogic_TargetDeviceInquiry (BusLogic_HostAdapter_T *HostAdapter)
VOID	BusLogic_InitializeCCB (PBuslogic_CCB_T CCB)
BOOLEAN NTAPI	BT958HwStartIO (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK Srb)
BOOLEAN	BusLogic_WriteOutgoingMailbox (PHW_DEVICE_EXTENSION deviceExtension, BusLogic_ActionCode_T ActionCode, BusLogic_CCB_T *CCB)
int	BusLogic_QueueCommand (IN PVOID HwDeviceExtension, IN PSCSI_REQUEST_BLOCK Srb, PBuslogic_CCB_T CCB)
BOOLEAN NTAPI	BT958HwInterrupt (IN PVOID HwDeviceExtension)
void	BusLogic_ScanIncomingMailboxes (PHW_DEVICE_EXTENSION deviceExtension)
void	BusLogic_QueueCompletedCCB (PHW_DEVICE_EXTENSION deviceExtension, BusLogic_CCB_T *CCB)
void	BusLogic_ProcessCompletedCCBs (PHW_DEVICE_EXTENSION deviceExtension)
UCHAR	BusLogic_ComputeResultCode (BusLogic_HostAdapter_T *HostAdapter, BusLogic_HostAdapterStatus_T HostAdapterStatus, BusLogic_TargetDeviceStatus_T TargetDeviceStatus, UCHAR SenseDataLength)
BOOLEAN NTAPI	BT958HwResetBus (IN PVOID HwDeviceExtension, IN ULONG PathId)
BOOLEAN	BusLogic_SendBusDeviceReset (IN PVOID HwDeviceExtension, PSCSI_REQUEST_BLOCK Srb)
BOOLEAN NTAPI	BT958HwInitialize (IN PVOID HwDeviceExtension)
SCSI_ADAPTER_CONTROL_STATUS NTAPI	BT958HwAdapterControl (IN PVOID HwDeviceExtension, IN SCSI_ADAPTER_CONTROL_TYPE ControlType, IN PVOID Parameters)

Function Documentation

BT958HwAdapterControl()

SCSI_ADAPTER_CONTROL_STATUS NTAPI BT958HwAdapterControl	(	IN PVOID	HwDeviceExtension,
		IN SCSI_ADAPTER_CONTROL_TYPE	ControlType,
		IN PVOID	Parameters
	)

Definition at line 2651 of file BusLogic958.c.

{
    PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
    BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
//  UCHAR *ParameterPointer;
//  BusLogic_StatusRegister_T StatusRegister;
//  BusLogic_InterruptRegister_T InterruptRegister;
//  int Result,ParameterLength;
//  long TimeoutCounter;
 
    PSCSI_SUPPORTED_CONTROL_TYPE_LIST ControlTypeList;
    ULONG AdjustedMaxControlType;
 
    ULONG Index;
//    UCHAR Retries;
 
    // Default Status
//    SCSI_ADAPTER_CONTROL_STATUS Status = ScsiAdapterControlSuccess;
 
    //
    // Structure defining which functions this miniport supports
    //
    BOOLEAN SupportedConrolTypes[ScsiAdapterControlMax] =
    {
        TRUE,   // ScsiQuerySupportedControlTypes
        TRUE,   // ScsiStopAdapter
        TRUE,   // ScsiRestartAdapter
        FALSE,  // ScsiSetBootConfig
        FALSE   // ScsiSetRunningConfig
    };
 
    DebugPrint((TRACE, "\n BusLogic -  Inside HwAdapterControl function \n"));
    switch(ControlType)
    {
        case ScsiQuerySupportedControlTypes:
        //  Reports the adapter-control operations implemented by the miniport. The port
        //  driver calls HwScsiAdapterControl with this control type after the HBA has been
        //  initialized but before the first I/O. The miniport fills in the
        //  SCSI_SUPPORTED_CONTROL_TYPE_LIST structure at Parameters with the operations it
        //  supports. After HwScsiAdapterControl returns from this call, the port driver
        //  calls the miniport's HwScsiAdapterControl only for supported operations.
        {
 
            // This entry point provides the method by which SCSIPort determines the
            // supported ControlTypes. Parameters is a pointer to a
            // SCSI_SUPPORTED_CONTROL_TYPE_LIST structure. Fill in this structure
            // honoring the size limits.
            ControlTypeList = Parameters;
            AdjustedMaxControlType =  (ControlTypeList->MaxControlType < ScsiAdapterControlMax) ?  ControlTypeList->MaxControlType :ScsiAdapterControlMax;
            for (Index = 0; Index < AdjustedMaxControlType; Index++)
            {
                ControlTypeList->SupportedTypeList[Index] = SupportedConrolTypes[Index];
            }
            break;
        }
 
        case ScsiStopAdapter:
        // Shuts down the HBA. The port driver calls HwScsiAdapterControl with this control
        // type when the HBA has been removed from the system, stopped for resource reconfiguration,
        // shut down for power management, or otherwise reconfigured or disabled. The port driver
        // ensures that there are no uncompleted requests and issues an SRB_FUNCTION_FLUSH request
        // to the miniport before calling this routine. The miniport disables interrupts on its HBA,
        // halts all processing, (including background processing not subject to interrupts or processing
        // of which the port driver is unaware, such as reconstructing fault-tolerant volumes), flushes
        // any remaining cached data to persistent storage, and puts the HBA into a state from which it
        // can be reinitialized or restarted.
        // The miniport should not free its resources when stopping its HBA. If the HBA was removed or
        // stopped for PnP resource reconfiguration, the port driver releases resources on behalf of the
        // miniport driver. If the HBA is shut down for power management, the miniport's resources are
        // preserved so the HBA can be restarted.
        {
            CHAR Parameter = 0;
            DebugPrint((INFO, "\n BusLogic -  stopping the device \n"));
            if (BusLogic_Command(HostAdapter,
                                   BusLogic_DisableHostAdapterInterrupt,
                                   &Parameter,
                                   sizeof(Parameter),
                                   NULL,
                                   0)
                < 0)
            {
                  return ScsiAdapterControlUnsuccessful;
            }
            break;
        }
 
        case ScsiRestartAdapter:
        // Reinitializes an HBA. The port driver calls HwScsiAdapterControl with this control type to power
        // up an HBA that was shut down for power management. All resources previously assigned to the miniport
        // are still available, and its device extension and logical unit extensions, if any, are intact.
        // The miniport performs the same operations as in its HwScsiInitialize routine, such as setting up
        // the HBA's registers and its initial state, if any.
        // The miniport must not call routines that can only be called from HwScsiFindAdapter or from
        // HwScsiAdapterControl when the control type is ScsiSetRunningConfig, such as ScsiPortGetBusData and
        // ScsiPortSetBusDataByOffset. If the miniport must call such routines to restart its HBA, it must also
        // implement ScsiSetRunningConfig.
        // If the miniport does not implement ScsiRestartAdapter, the port driver calls the miniport's HwScsiFindAdapter and HwScsiInitialize routines. However, because such routines might do detection work which is unnecessary for restarting the HBA, such a miniport will not power up its HBA as quickly as a miniport that implements ScsiRestartAdapter.
 
        // See PR 69004. We were not calling BT958HwInitialize earlier if the
        // first two calls succeeded thus causing resume from standby to fail.
        {
            if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, TRUE) &&
                  BusLogic_InitializeHostAdapter(deviceExtension, NULL) &&
                  BT958HwInitialize(HwDeviceExtension))
               )
            {
                DebugPrint((ERROR, "\n Buslogic - Resetting %s Failed\n",
                            HostAdapter->FullModelName));
                return ScsiAdapterControlUnsuccessful;
            }
 
            ScsiPortStallExecution(HostAdapter->BusSettleTime);
            break;
        }
        default:
        {
            return ScsiAdapterControlUnsuccessful;
        }
    }
    return ScsiAdapterControlSuccess;
}// end BT958HwAdapterControl

Referenced by DriverEntry().

BT958HwFindAdapter()

ULONG NTAPI BT958HwFindAdapter	(	IN PVOID	HwDeviceExtension,
		IN PVOID	Context,
		IN PVOID	BusInformation,
		IN PCHAR	ArgumentString,
		IN OUT PPORT_CONFIGURATION_INFORMATION	ConfigInfo,
		OUT PBOOLEAN	Again
	)

Definition at line 173 of file BusLogic958.c.

{
    PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
    BusLogic_HostAdapter_T *hcsp = &(deviceExtension->hcs);
//    static UCHAR k = 0;
    PACCESS_RANGE   accessRange;
//    PCI_COMMON_CONFIG PCICommonConfig;
    PUCHAR   pciAddress;
    char    NumPort = 0;
 
    DebugPrint((TRACE,"\n BusLogic -  Inside the Find Adapter Routine\n"));
 
    *Again = FALSE;
 
    accessRange = &((*(ConfigInfo->AccessRanges))[0]);
 
    // Inform SCSIPORT that we are NOT a WMI data provider
    // Sirish, 10th June 2002
    ConfigInfo->WmiDataProvider = FALSE;
    /*Sirish, 10th June 2002 BT958WmiInitialize(deviceExtension);*/
 
    // Check for configuration information passed in form the system
    if ((*ConfigInfo->AccessRanges)[0].RangeLength != 0)
    {
        // check if the system supplied bus-relative address is valid and has not been
        // claimed by another device
        if ( ScsiPortValidateRange(deviceExtension,
                                   ConfigInfo->AdapterInterfaceType,
                                   ConfigInfo->SystemIoBusNumber,
                                   accessRange->RangeStart,
                                   accessRange->RangeLength,
                                   TRUE) )  // TRUE: iniospace
        {
            DebugPrint((INFO,"\n BusLogic - Validate Range function succeeded \n"));
 
            // Map the Bus-relative range addresses to system-space logical range addresses
            // so that these mapped logical addresses can be called with SciPortRead/Writexxx
            // to determine whether the adapter is an HBA that the driver supports
 
            pciAddress = (PUCHAR) ScsiPortGetDeviceBase(deviceExtension,
                                                       ConfigInfo->AdapterInterfaceType,
                                                       ConfigInfo->SystemIoBusNumber,
                                                       accessRange->RangeStart,
                                                       accessRange->RangeLength,
                                                       TRUE);  // TRUE: iniospace
 
            if(pciAddress)
            {
                DebugPrint((INFO,"\n BusLogic -  Get Device Base  function succeeded \n"));
 
                memset(hcsp, 0, sizeof(BusLogic_HostAdapter_T));
 
                // points to structure of type BT958_HA which has device specific information. This needs
                // to be either changed or modified with our specific info.
                hcsp->IO_Address = pciAddress;
                hcsp->IRQ_Channel = (UCHAR)ConfigInfo->BusInterruptLevel;
                NumPort++;
            }
        }
    }
 
    if (NumPort == 0)
    {
        return(SP_RETURN_NOT_FOUND);
    }
 
    //  Hardware found, let's find out hardware configuration
    //  and fill out ConfigInfo table for WinNT
    ConfigInfo->NumberOfBuses = 1;
    ConfigInfo->MaximumTransferLength = MAX_TRANSFER_SIZE;
 
#if SG_SUPPORT
    ConfigInfo->ScatterGather = TRUE;
#else
    ConfigInfo->ScatterGather = FALSE;
#endif
 
    ConfigInfo->Master = TRUE;
    ConfigInfo->NeedPhysicalAddresses = TRUE;
    ConfigInfo->Dma32BitAddresses = TRUE;
    ConfigInfo->InterruptMode =  LevelSensitive;
 
#if TAG_QUEUING
    ConfigInfo->TaggedQueuing = TRUE;
#else
    ConfigInfo->TaggedQueuing = FALSE;
#endif
 
    // Should we change this to double-word aligned to increase performance
    ConfigInfo->AlignmentMask = 0x0;
 
    if (!Buslogic_InitBT958(deviceExtension,ConfigInfo)) // hardware specific initializations. Find what's for our card
    {
       ScsiPortLogError(deviceExtension,
                         NULL,
                         0,
                         0,
                         0,
                         SP_INTERNAL_ADAPTER_ERROR,
                         7 << 8);
 
       return(SP_RETURN_ERROR);
    }
 
    if (NumPort != 0)
        *Again = TRUE;
 
    return(SP_RETURN_FOUND);
 
} // end BT958FindAdapter()

Referenced by DriverEntry().

BT958HwInitialize()

BOOLEAN NTAPI BT958HwInitialize

(

IN PVOID

HwDeviceExtension

)

Definition at line 2620 of file BusLogic958.c.

{
    PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
    BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
    CHAR Parameter = 1;
 
    // enable interrupts
    if (BusLogic_Command(HostAdapter,
                           BusLogic_DisableHostAdapterInterrupt,
                           &Parameter,
                           sizeof(Parameter),
                           NULL,
                           0)
        < 0)
    {
       return FALSE;
    }
    return TRUE;
}// end BT958HwInitialize

Referenced by BT958HwAdapterControl(), and DriverEntry().

BT958HwInterrupt()

BOOLEAN NTAPI BT958HwInterrupt

(

IN PVOID

HwDeviceExtension

)

Definition at line 1973 of file BusLogic958.c.

{
    PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
//    PNONCACHED_EXTENSION noncachedExtension =    deviceExtension->NoncachedExtension;
    BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
//    PBuslogic_CCB_T ccb;
//    PSCSI_REQUEST_BLOCK srb;
 
//    ULONG residualBytes;
//    ULONG i;
 
    BusLogic_InterruptRegister_T InterruptRegister;
 
 
    // Read the Host Adapter Interrupt Register.
    InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
    if (InterruptRegister.Bits.InterruptValid)
    {
 
      // Acknowledge the interrupt and reset the Host Adapter
      // Interrupt Register.
      BusLogic_InterruptReset(HostAdapter);
      // Process valid External SCSI Bus Reset and Incoming Mailbox
      // Loaded Interrupts.  Command Complete Interrupts are noted,
      // and Outgoing Mailbox Available Interrupts are ignored, as
      // they are never enabled.
      if (InterruptRegister.Bits.ExternalBusReset)
      {
        HostAdapter->HostAdapterExternalReset = TRUE;
      }
      else if (InterruptRegister.Bits.IncomingMailboxLoaded)
      {
        BusLogic_ScanIncomingMailboxes(deviceExtension);
      }
      else if (InterruptRegister.Bits.CommandComplete)
      {
        HostAdapter->HostAdapterCommandCompleted = TRUE;
      }
    }
    else
        return FALSE;
 
    // Process any completed CCBs.
    if (HostAdapter->FirstCompletedCCB != NULL)
        BusLogic_ProcessCompletedCCBs(deviceExtension);
 
    // Reset the Host Adapter if requested.
    if (HostAdapter->HostAdapterExternalReset ||
        HostAdapter->HostAdapterInternalError)
    {
      // I have replaced the NULL with srb->pathid check if this is correct
      BT958HwResetBus(HwDeviceExtension, SP_UNTAGGED);
      HostAdapter->HostAdapterExternalReset = FALSE;
      HostAdapter->HostAdapterInternalError = FALSE;
    }
    return TRUE;
}// end BT958HwInterrupt

Referenced by DriverEntry().

BT958HwResetBus()

BOOLEAN NTAPI BT958HwResetBus	(	IN PVOID	HwDeviceExtension,
		IN ULONG	PathId
	)

Definition at line 2448 of file BusLogic958.c.

{
  PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
//  BusLogic_CCB_T *CCB;
//  int TargetID;
  BOOLEAN Result;
  BOOLEAN HardReset;
 
  DebugPrint((TRACE, "\n BusLogic - Reset SCSI bus\n"));
 
  // Complete all outstanding requests with SRB_STATUS_BUS_RESET.
  ScsiPortCompleteRequest(deviceExtension,
                                (UCHAR)PathId,
                                0xFF,
                                0xFF,
                                (ULONG) SRB_STATUS_BUS_RESET);
 
  if (HostAdapter->HostAdapterExternalReset)
  {
      //BusLogic_IncrementErrorCounter(&HostAdapter->ExternalHostAdapterResets);
      HardReset = FALSE;
  }
  else if (HostAdapter->HostAdapterInternalError)
  {
      //BusLogic_IncrementErrorCounter(&HostAdapter->HostAdapterInternalErrors);
      HardReset = TRUE;
  }
  else
  {
      //BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[srb->TargetId].HostAdapterResetsRequested);
      HardReset = TRUE;
  }
 
  // Think of a way of doing this - Namita
  /*
  if(srb == NULL)
  {
    if (HostAdapter->HostAdapterInternalError)
        DebugPrint((0,"BusLogic Warning: Resetting %s due to Host Adapter Internal Error\n",HostAdapter->FullModelName));
    else
        DebugPrint((0,"BUsLogic Warning: Resetting %s due to External SCSI Bus Reset\n",HostAdapter->FullModelName));
  }
  else
  {
      DebugPrint((0,"BusLogic Warning: Resetting %s due to Target %d\n", HostAdapter->FullModelName, srb->TargetId));
      //BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[srb->TargetId].HostAdapterResetsAttempted);
  }
  */
 
  // Attempt to Reset and Reinitialize the Host Adapter.
  // Change the initialize routine to make allocation some place else
  if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(deviceExtension, NULL)))
  {
      DebugPrint((ERROR, "\n Buslogic - Resetting %s Failed\n",
                  HostAdapter->FullModelName));
      Result = FALSE;
      goto Done;
  }
 
  // Check if we have to do this, document says that the scsi port driver takes care of the reset delays - Namita
  // Wait a few seconds between the Host Adapter Hard Reset which initiates
  // a SCSI Bus Reset and issuing any SCSI Commands.  Some SCSI devices get
  // confused if they receive SCSI Commands too soon after a SCSI Bus Reset.
  // Note that a timer interrupt may occur here, but all active CCBs have
  // already been marked Reset and so a reentrant call will return Pending.
  if (HardReset)
    ScsiPortStallExecution(HostAdapter->BusSettleTime);
  Result = TRUE;
 
Done:
  return Result;
}// end BT958HwResetBus

Referenced by BT958HwInterrupt(), BT958HwStartIO(), and DriverEntry().

BT958HwStartIO()

BOOLEAN NTAPI BT958HwStartIO	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK	Srb
	)

Definition at line 1458 of file BusLogic958.c.

{
    PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
//    PNONCACHED_EXTENSION noncachedExtension =   deviceExtension->NoncachedExtension;
    BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
//    BusLogic_OutgoingMailbox_T mailboxOut;
    PSCSI_REQUEST_BLOCK AbortSRB;
 
    PBuslogic_CCB_T ccb;
    BusLogic_TargetFlags_T *TargetFlags = &HostAdapter->TargetFlags[Srb->TargetId];
 
 
    DebugPrint((TRACE, "\n BusLogic - Inside Start IO routine\n"));
 
    // Make sure that this request isn't too long for the adapter.  If so
    // bounce it back as an invalid request
    if (BusLogic_CDB_MaxLength < Srb->CdbLength)
    {
 
        DebugPrint((WARNING, "\n BusLogic - Srb->CdbLength [%d] > MaxCdbLength [%d]."
                    " Invalid request\n", Srb->CdbLength, BusLogic_CDB_MaxLength));
 
        Srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
        ScsiPortNotification(RequestComplete,deviceExtension,Srb);
        ScsiPortNotification(NextRequest,deviceExtension,NULL);
        return TRUE;
    }
 
    switch (Srb->Function)
    {
        /*
        Sirish, 10th June 2002
        // Check if command is a WMI request.
        case SRB_FUNCTION_WMI:
            // Process the WMI request and return.
            return BT958WmiSrb(HwDeviceExtension, (PSCSI_WMI_REQUEST_BLOCK) Srb);
        */
 
        case SRB_FUNCTION_EXECUTE_SCSI:
 
            // get the ccb structure from the extension
            ccb = Srb->SrbExtension;
            BusLogic_InitializeCCB(ccb);
 
            // Save SRB back pointer in CCB.
            ccb->SrbAddress = Srb;
 
            // Build CCB. - Have some way of knowing that a srb has already been
            // completed and you just need to return from here
            BusLogic_QueueCommand(HwDeviceExtension ,Srb,   ccb);
 
            // Place the CCB in an Outgoing Mailbox.  The higher levels of the SCSI
            // Subsystem should not attempt to queue more commands than can be placed
            // in Outgoing Mailboxes, so there should always be one free.  In the
            // unlikely event that there are none available, wait 1 second and try
            // again.  If that fails, the Host Adapter is probably hung so signal an
            // error as a Host Adapter Hard Reset should be initiated soon.
 
            if (!BusLogic_WriteOutgoingMailbox(deviceExtension , BusLogic_MailboxStartCommand, ccb))
            {
                DebugPrint((ERROR, "\n BusLogic - Unable to write Outgoing Mailbox - "
                            "Pausing for 1 second\n"));
                ScsiPortStallExecution(1000);
                if (!BusLogic_WriteOutgoingMailbox(deviceExtension , BusLogic_MailboxStartCommand, ccb))
                {
                      DebugPrint((ERROR, "\n BusLogic - Still unable to write Outgoing"
                                  "Mailbox - Host Adapter Dead?\n"));
 
                      Srb->SrbStatus = SRB_STATUS_ERROR;
                      ScsiPortNotification(RequestComplete,deviceExtension,Srb);
                      ScsiPortNotification(NextRequest,deviceExtension,NULL);
 
                }
            }
            else
            {
                /*
                 * Reverted to pre 1.1.0.0 control flow
                 * The 1.1.0.0 control flow causes the .NET Server freeze during installs/restarts
                 * And the fix for that in 1.1.0.1 causes BSODs in XP
                 * Side note: Ben: the Buslogic emulation never exports more than 1 lun
                 */
                if (TargetFlags->TaggedQueuingActive
                    && HostAdapter->ActiveCommandsPerLun[Srb->TargetId][Srb->Lun] < BUSLOGIC_MAXIMUM_TAGS)  {
                    ScsiPortNotification(NextLuRequest, HwDeviceExtension, Srb->PathId, Srb->TargetId, Srb->Lun);
                }
                else    {
                    ScsiPortNotification(NextRequest,deviceExtension,NULL);
                }
            }
            return TRUE;
 
        case SRB_FUNCTION_ABORT_COMMAND:
 
            // Get CCB to abort.
            ccb = Srb->NextSrb->SrbExtension;
 
            // Set abort SRB for completion.
            ccb->AbortSrb = Srb;
 
            AbortSRB = ScsiPortGetSrb(HwDeviceExtension,
                                      Srb->PathId,
                                      Srb->TargetId,
                                      Srb->Lun,
                                      Srb->QueueTag);
 
            if ((AbortSRB != Srb->NextSrb) || (AbortSRB->SrbStatus != SRB_STATUS_PENDING))
            {
                Srb->SrbStatus = SRB_STATUS_ABORT_FAILED;
                ScsiPortNotification(RequestComplete, HwDeviceExtension, Srb);
                ScsiPortNotification(NextRequest, HwDeviceExtension, NULL);
                return TRUE;
            }
 
            // write the abort information into a mailbox
            if (BusLogic_WriteOutgoingMailbox( deviceExtension, BusLogic_MailboxAbortCommand, ccb))
            {
              DebugPrint((WARNING, "\n BusLogic - Aborting CCB #%ld to Target %d\n",
                          ccb->SerialNumber, Srb->TargetId));
              // Adapter ready for next request.
 
                /*
                 * Reverted to pre 1.1.0.0 control flow
                 * The 1.1.0.0 control flow causes the .NET Server freeze during installs/restarts
                 * And the fix for that in 1.1.0.1 causes BSODs in XP
                 * Side note: Ben: the Buslogic emulation never exports more than 1 lun
                 */
                if (TargetFlags->TaggedQueuingActive
                    && HostAdapter->ActiveCommandsPerLun[Srb->TargetId][Srb->Lun] < BUSLOGIC_MAXIMUM_TAGS)  {
                    ScsiPortNotification(NextLuRequest, HwDeviceExtension, Srb->PathId, Srb->TargetId, Srb->Lun);
                }
                else    {
                    ScsiPortNotification(NextRequest,deviceExtension,NULL);
                }
            }
            else
            {
              DebugPrint((WARNING, "\n BusLogic - Unable to Abort CCB #%ld to Target %d"
                          " - No Outgoing Mailboxes\n", ccb->SerialNumber,
                          Srb->TargetId));
              Srb->SrbStatus = SRB_STATUS_ERROR;
              ScsiPortNotification(RequestComplete, HwDeviceExtension, Srb);
              ScsiPortNotification(NextRequest, HwDeviceExtension, NULL);
            }
            return TRUE;
 
 
        case SRB_FUNCTION_RESET_BUS:
 
            // Reset SCSI bus.
            DebugPrint((INFO, "\n BusLogic - SRB_FUNCTION_RESET_BUS, srb=%x \n",Srb));
            BT958HwResetBus(HwDeviceExtension, Srb->PathId);
 
            Srb->SrbStatus = SRB_STATUS_SUCCESS;
            ScsiPortNotification(RequestComplete, HwDeviceExtension, Srb);
            ScsiPortNotification(NextRequest, HwDeviceExtension, NULL);
            return TRUE;
 
 
        case SRB_FUNCTION_RESET_DEVICE:
 
            ccb = Srb->SrbExtension;
            BusLogic_InitializeCCB(ccb);
 
            // Save SRB back pointer in CCB.
            ccb->SrbAddress = Srb;
 
            if(!BusLogic_SendBusDeviceReset(HostAdapter, Srb))
            {
                BT958HwResetBus(HwDeviceExtension, SP_UNTAGGED);
                Srb->SrbStatus = SRB_STATUS_SUCCESS;
                ScsiPortNotification(RequestComplete, HwDeviceExtension, Srb);
                ScsiPortNotification(NextRequest, HwDeviceExtension, NULL);
                return TRUE;
            }
 
            /*
             * Reverted to pre 1.1.0.0 control flow
             * The 1.1.0.0 control flow causes the .NET Server freeze during installs/restarts
             * And the fix for that in 1.1.0.1 causes BSODs in XP
             * Side note: Ben: the Buslogic emulation never exports more than 1 lun
             */
            if (TargetFlags->TaggedQueuingActive
                && HostAdapter->ActiveCommandsPerLun[Srb->TargetId][Srb->Lun] < BUSLOGIC_MAXIMUM_TAGS)  {
                ScsiPortNotification(NextLuRequest, HwDeviceExtension, Srb->PathId, Srb->TargetId, Srb->Lun);
            }
            else    {
                ScsiPortNotification(NextRequest,deviceExtension,NULL);
            }
            return TRUE;
 
        default:
 
            // Set error, complete request and signal ready for next request.
            Srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
            ScsiPortNotification(RequestComplete,deviceExtension,Srb);
            ScsiPortNotification(NextRequest,deviceExtension,NULL);
 
            return TRUE;
 
    } // end switch
 
}// end BusLogic_TargetDeviceInquiry

Referenced by DriverEntry().

BusLogic_CheckHostAdapter()

BOOLEAN BusLogic_CheckHostAdapter

(

BusLogic_HostAdapter_T *

HostAdapter

)

Definition at line 569 of file BusLogic958.c.

{
  BusLogic_ExtendedSetupInformation_T ExtendedSetupInformation;
  BusLogic_RequestedReplyLength_T RequestedReplyLength;
  BOOLEAN Result = TRUE;
 
  DebugPrint((TRACE, "\n BusLogic -  Inside BusLogic_CheckHostAdapter function \n"));
 
  //
  //  Issue the Inquire Extended Setup Information command.  Only genuine
  //  BusLogic Host Adapters and TRUE clones support this command.  Adaptec 1542C
  //  series Host Adapters that respond to the Geometry Register I/O port will
  //  fail this command.
  RequestedReplyLength = sizeof(ExtendedSetupInformation);
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireExtendedSetupInformation,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
                       &ExtendedSetupInformation,
                       sizeof(ExtendedSetupInformation))
      != sizeof(ExtendedSetupInformation))
  {
    Result = FALSE;
  }
  return Result;
}// end BusLogic_CheckHostAdapter

Referenced by Buslogic_InitBT958().

BusLogic_Command()

int BusLogic_Command	(	BusLogic_HostAdapter_T *	HostAdapter,
		BusLogic_OperationCode_T	OperationCode,
		void *	ParameterData,
		int	ParameterLength,
		void *	ReplyData,
		int	ReplyLength
	)

Definition at line 606 of file BusLogic958.c.

{
  UCHAR *ParameterPointer = (UCHAR *) ParameterData;
  UCHAR *ReplyPointer = (UCHAR *) ReplyData;
  BusLogic_StatusRegister_T StatusRegister;
  BusLogic_InterruptRegister_T InterruptRegister;
  int ReplyBytes = 0, Result;
  long TimeoutCounter;
 
  //  Clear out the Reply Data if provided.
  if (ReplyLength > 0)
    memset(ReplyData, 0, ReplyLength);
 
  //  If the IRQ Channel has not yet been acquired, then interrupts must be
  //  disabled while issuing host adapter commands since a Command Complete
  //  interrupt could occur if the IRQ Channel was previously enabled by another
  //  BusLogic Host Adapter or another driver sharing the same IRQ Channel.
 
  //  Wait for the Host Adapter Ready bit to be set and the Command/Parameter
  //  Register Busy bit to be reset in the Status Register.
  TimeoutCounter = 10000;
  while (--TimeoutCounter >= 0)
  {
      StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
      if ( StatusRegister.Bits.HostAdapterReady &&
          !StatusRegister.Bits.CommandParameterRegisterBusy)
      {
            break;
      }
      ScsiPortStallExecution(100);
  }
  if (TimeoutCounter < 0)
  {
      //BusLogic_CommandFailureReason = "Timeout waiting for Host Adapter Ready";
      Result = -2;
      goto Done;
  }
 
  //  Write the OperationCode to the Command/Parameter Register.
  HostAdapter->HostAdapterCommandCompleted = FALSE;
  BusLogic_WriteCommandParameterRegister(HostAdapter, (UCHAR)OperationCode);
 
  //Write any additional Parameter Bytes.
  TimeoutCounter = 10000;
  while (ParameterLength > 0 && --TimeoutCounter >= 0)
  {
    //
    // Wait 100 microseconds to give the Host Adapter enough time to determine
    // whether the last value written to the Command/Parameter Register was
    // valid or not.  If the Command Complete bit is set in the Interrupt
    // Register, then the Command Invalid bit in the Status Register will be
    // reset if the Operation Code or Parameter was valid and the command
    // has completed, or set if the Operation Code or Parameter was invalid.
    // If the Data In Register Ready bit is set in the Status Register, then
    // the Operation Code was valid, and data is waiting to be read back
    // from the Host Adapter.  Otherwise, wait for the Command/Parameter
    // Register Busy bit in the Status Register to be reset.
 
      ScsiPortStallExecution(100);
      InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
      StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
      if (InterruptRegister.Bits.CommandComplete)
          break;
      if (HostAdapter->HostAdapterCommandCompleted)
          break;
      if (StatusRegister.Bits.DataInRegisterReady)
          break;
      if (StatusRegister.Bits.CommandParameterRegisterBusy)
          continue;
      BusLogic_WriteCommandParameterRegister(HostAdapter, *ParameterPointer++);
      ParameterLength--;
  }
  if (TimeoutCounter < 0)
  {
      //BusLogic_CommandFailureReason =  "Timeout waiting for Parameter Acceptance";
      Result = -2;
      goto Done;
  }
 
  // The Modify I/O Address command does not cause a Command Complete Interrupt.
  if (OperationCode == BusLogic_ModifyIOAddress)
  {
    StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
    if (StatusRegister.Bits.CommandInvalid)
    {
      //BusLogic_CommandFailureReason = "Modify I/O Address Invalid";
      Result = -1;
      goto Done;
    }
    Result = 0;
    goto Done;
  }
 
  //  Select an appropriate timeout value for awaiting command completion.
  switch (OperationCode)
  {
    case BusLogic_InquireInstalledDevicesID0to7:
    case BusLogic_InquireInstalledDevicesID8to15:
    case BusLogic_InquireTargetDevices:
      // Approximately 60 seconds.
      TimeoutCounter = 60*10000;
      break;
    default:
      // Approximately 1 second.
      TimeoutCounter = 10000;
      break;
  }
 
  //
  //  Receive any Reply Bytes, waiting for either the Command Complete bit to
  //  be set in the Interrupt Register, or for the Interrupt Handler to set the
  //  Host Adapter Command Completed bit in the Host Adapter structure.
  while (--TimeoutCounter >= 0)
  {
    InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
    StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
    if (InterruptRegister.Bits.CommandComplete)
        break;
    if (HostAdapter->HostAdapterCommandCompleted)
        break;
    if (StatusRegister.Bits.DataInRegisterReady)
    {
      if (++ReplyBytes <= ReplyLength)
      {
        *ReplyPointer++ = BusLogic_ReadDataInRegister(HostAdapter);
      }
      else
      {
          BusLogic_ReadDataInRegister(HostAdapter);
      }
    }
    if (OperationCode == BusLogic_FetchHostAdapterLocalRAM &&
        StatusRegister.Bits.HostAdapterReady)
    {
      break;
    }
    ScsiPortStallExecution(100);
  }
  if (TimeoutCounter < 0)
  {
      //BusLogic_CommandFailureReason = "Timeout waiting for Command Complete";
      Result = -2;
      goto Done;
  }
 
  //  Clear any pending Command Complete Interrupt.
  BusLogic_InterruptReset(HostAdapter);
 
  //  Process Command Invalid conditions.
  if (StatusRegister.Bits.CommandInvalid)
  {
    //
    // Some early BusLogic Host Adapters may not recover properly from
    // a Command Invalid condition, so if this appears to be the case,
    // a Soft Reset is issued to the Host Adapter.  Potentially invalid
    // commands are never attempted after Mailbox Initialization is
    // performed, so there should be no Host Adapter state lost by a
    // Soft Reset in response to a Command Invalid condition.
 
    ScsiPortStallExecution(1000);
    StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
    if (StatusRegister.Bits.CommandInvalid             ||
      StatusRegister.Bits.Reserved                     ||
      StatusRegister.Bits.DataInRegisterReady          ||
      StatusRegister.Bits.CommandParameterRegisterBusy ||
      !StatusRegister.Bits.HostAdapterReady            ||
      !StatusRegister.Bits.InitializationRequired      ||
      StatusRegister.Bits.DiagnosticActive             ||
      StatusRegister.Bits.DiagnosticFailure)
    {
        BusLogic_SoftReset(HostAdapter);
        ScsiPortStallExecution(1000);
    }
    //BusLogic_CommandFailureReason = "Command Invalid";
    Result = -1;
    goto Done;
  }
 
  // Handle Excess Parameters Supplied conditions.
  if (ParameterLength > 0)
  {
      //BusLogic_CommandFailureReason = "Excess Parameters Supplied";
      Result = -1;
      goto Done;
  }
 
  //  Indicate the command completed successfully.
  Result = ReplyBytes;
 
  //  Restore the interrupt status if necessary and return.
Done:
  return Result;
}// end BusLogic_Command

Referenced by BT958HwAdapterControl(), BT958HwInitialize(), BT958ReadExtendedSetupInfo(), BusLogic_CheckHostAdapter(), Buslogic_InitBT958(), BusLogic_InitializeHostAdapter(), BusLogic_ReadHostAdapterConfiguration(), and BusLogic_TargetDeviceInquiry().

BusLogic_ComputeResultCode()

UCHAR BusLogic_ComputeResultCode	(	BusLogic_HostAdapter_T *	HostAdapter,
		BusLogic_HostAdapterStatus_T	HostAdapterStatus,
		BusLogic_TargetDeviceStatus_T	TargetDeviceStatus,
		UCHAR	SenseDataLength
	)

Definition at line 2309 of file BusLogic958.c.

{
  UCHAR HostStatus = 0;
 
  // Namita 2Oct CDROM issue
  if (TargetDeviceStatus != BusLogic_OperationGood && (HostAdapterStatus == BusLogic_CommandCompletedNormally ||
                                                       HostAdapterStatus == BusLogic_LinkedCommandCompleted   ||
                                                       HostAdapterStatus == BusLogic_LinkedCommandCompletedWithFlag))
  {
    switch(TargetDeviceStatus)
    {
        case BusLogic_CheckCondition:
        {
            HostStatus = SRB_STATUS_ERROR;
            if(SenseDataLength != BusLogic_DisableAutoReqSense)
                HostStatus |= SRB_STATUS_AUTOSENSE_VALID;
            break;
        }
        case BusLogic_DeviceBusy:
        {
            HostStatus = SRB_STATUS_BUSY;
            break;
        }
        case BusLogic_OperationGood:
        {
            HostStatus = SRB_STATUS_SUCCESS;
            break;
        }
    }
  }
 
  else
  {
 
      switch (HostAdapterStatus)
      {
            case BusLogic_CommandCompletedNormally:
            case BusLogic_LinkedCommandCompleted:
            case BusLogic_LinkedCommandCompletedWithFlag:
            {
              HostStatus = SRB_STATUS_SUCCESS;
              break;
            }
            case BusLogic_SCSISelectionTimeout:
            {
              HostStatus = SRB_STATUS_SELECTION_TIMEOUT;
              break;
            }
            case BusLogic_InvalidOutgoingMailboxActionCode:
            case BusLogic_InvalidCommandOperationCode:
            case BusLogic_InvalidCommandParameter:
              DebugPrint((WARNING, "\n BusLogic - Driver Protocol Error 0x%02X\n",
                          HostAdapterStatus));
            case BusLogic_DataUnderRun:
 
            case BusLogic_DataOverRun:
                // SRB_STATUS_DATA_OVERRUN
 
            case BusLogic_LinkedCCBhasInvalidLUN:
 
            case BusLogic_TaggedQueuingMessageRejected:
                // SRB_STATUS_MESSAGE_REJECTED
            case BusLogic_TargetDeviceReconnectedImproperly:
            case BusLogic_AbortQueueGenerated:
            case BusLogic_HostAdapterSoftwareError:
 
            case BusLogic_HostAdapterHardwareTimeoutError:
                // SRB_STATUS_TIMEOUT
            {
              HostStatus = SRB_STATUS_ERROR;
              break;
            }
            case BusLogic_TargetFailedResponseToATN:
            case BusLogic_HostAdapterAssertedRST:
            case BusLogic_OtherDeviceAssertedRST:
            case BusLogic_HostAdapterAssertedBusDeviceReset:
            {
              HostStatus = SRB_STATUS_BUS_RESET;
              break;
            }
            case BusLogic_SCSIParityErrorDetected:
            {
                HostStatus = SRB_STATUS_PARITY_ERROR;
                break;
            }
            case BusLogic_UnexpectedBusFree:
            {
                HostStatus = SRB_STATUS_UNEXPECTED_BUS_FREE;
                break;
            }
            case BusLogic_InvalidBusPhaseRequested:
            {
                HostStatus = SRB_STATUS_PHASE_SEQUENCE_FAILURE;
                break;
            }
            case BusLogic_AutoRequestSenseFailed:
            {
                HostStatus = SRB_STATUS_REQUEST_SENSE_FAILED;
                break;
            }
            case BusLogic_UnsupportedMessageReceived:
            {
                HostStatus = SRB_STATUS_INVALID_REQUEST;
                break;
            }
            case BusLogic_HostAdapterHardwareFailed:
            {
                HostStatus = SRB_STATUS_NO_HBA;
                break;
            }
            default:
            {
              DebugPrint((WARNING, "\n BusLogic - Unknown HBA Status 0x%02X\n",
                          HostAdapterStatus));
              HostStatus = SRB_STATUS_ERROR;
              break;
            }
        }
  }
  return HostStatus;
}// end BusLogic_ComputeResultCode

Referenced by BusLogic_ProcessCompletedCCBs().

BusLogic_HardwareResetHostAdapter()

BOOLEAN BusLogic_HardwareResetHostAdapter	(	BusLogic_HostAdapter_T *	HostAdapter,
		BOOLEAN	HardReset
	)

Definition at line 470 of file BusLogic958.c.

{
  BusLogic_StatusRegister_T StatusRegister;
  int TimeoutCounter;
 
  //  Issue a Hard Reset or Soft Reset Command to the Host Adapter.  The Host
  //  Adapter should respond by setting Diagnostic Active in the Status Register.
  if (HardReset)
    BusLogic_HardReset(HostAdapter);
  else
    BusLogic_SoftReset(HostAdapter);
 
  // Wait until Diagnostic Active is set in the Status Register.
  TimeoutCounter = 100;
  while (--TimeoutCounter >= 0)
  {
      StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
      if (StatusRegister.Bits.DiagnosticActive)
          break;
  }
 
  // if in spite of waiting for time out period , if it didn't et set, then something is wrong-- so just return.
  if (TimeoutCounter < 0)
      return FALSE;
 
  //
  //  Wait 100 microseconds to allow completion of any initial diagnostic
  //  activity which might leave the contents of the Status Register
  //  unpredictable.
  ScsiPortStallExecution(100);
 
  //  Wait until Diagnostic Active is reset in the Status Register.
  TimeoutCounter = 10*10000;
  while (--TimeoutCounter >= 0)
  {
      StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
      if (!StatusRegister.Bits.DiagnosticActive)
          break;
      ScsiPortStallExecution(100);
  }
 
  if (TimeoutCounter < 0)
      return FALSE;
 
  //  Wait until at least one of the Diagnostic Failure, Host Adapter Ready,
  //  or Data In Register Ready bits is set in the Status Register.
  TimeoutCounter = 10000;
  while (--TimeoutCounter >= 0)
  {
      StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
      if (StatusRegister.Bits.DiagnosticFailure ||
          StatusRegister.Bits.HostAdapterReady ||
          StatusRegister.Bits.DataInRegisterReady)
      {
        break;
      }
      ScsiPortStallExecution(100);
   }
 
  //device didn't respond to reset
  if (TimeoutCounter < 0)
      return FALSE;
 
  //  If Diagnostic Failure is set or Host Adapter Ready is reset, then an
  //  error occurred during the Host Adapter diagnostics.  If Data In Register
  //  Ready is set, then there is an Error Code available.
  if (StatusRegister.Bits.DiagnosticFailure || !StatusRegister.Bits.HostAdapterReady)
  {
      DebugPrint((ERROR, "\n BusLogic - Failure - HOST ADAPTER STATUS REGISTER = %02X\n", StatusRegister.All));
 
      if (StatusRegister.Bits.DataInRegisterReady)
      {
        DebugPrint((ERROR, "HOST ADAPTER ERROR CODE = %d\n", BusLogic_ReadDataInRegister(HostAdapter)));
      }
      return FALSE;
  }
 
  //  Indicate the Host Adapter Hard Reset completed successfully.
  return TRUE;
}// end BusLogic_HardwareResetHostAdapter

Referenced by BT958HwAdapterControl(), BT958HwResetBus(), and Buslogic_InitBT958().

Buslogic_InitBT958()

BOOLEAN Buslogic_InitBT958	(	PHW_DEVICE_EXTENSION	deviceExtension,
		PPORT_CONFIGURATION_INFORMATION	ConfigInfo
	)

Definition at line 316 of file BusLogic958.c.

{
    CHAR ch;
 
    BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
 
    // Probe the Host Adapter.
    // If unsuccessful, abort further initialization.
    if (!BusLogic_ProbeHostAdapter(HostAdapter))
        return   FALSE;
 
    // Hard Reset the Host Adapter.
    // If unsuccessful, abort further initialization.
    if (!BusLogic_HardwareResetHostAdapter(HostAdapter, TRUE))
        return FALSE;
 
    /*
     * PR 40284 -- Disable interrupts until driver initialization is complete.
     */
    ch = 0;
    if (BusLogic_Command(HostAdapter, BusLogic_DisableHostAdapterInterrupt,
             &ch, sizeof(ch), NULL, 0) < 0) {
        DebugPrint((WARNING, "\n BusLogic - Could not disable interrupts!\n"));
    } else {
        DebugPrint((INFO, "\n BusLogic - Disabled interrupts.\n"));
    }
 
    // Check the Host Adapter.
    // If unsuccessful, abort further initialization.
    if (!BusLogic_CheckHostAdapter(HostAdapter))
        return FALSE;
 
    // Allocate a Noncached Extension to use for mail boxes.
    deviceExtension->NoncachedExtension =  ScsiPortGetUncachedExtension(deviceExtension,
                                                                      ConfigInfo,
                                                                      sizeof(NONCACHED_EXTENSION));
 
    if (deviceExtension->NoncachedExtension == NULL)
    {
        // Log error.
        ScsiPortLogError(deviceExtension,
                             NULL,
                             0,
                             0,
                             0,
                             SP_INTERNAL_ADAPTER_ERROR,
                             7 << 8);
 
        // abort further initialization
        return FALSE;
    }
 
    // Read the Host Adapter Configuration, Configure the Host Adapter,
    // Acquire the System Resources necessary to use the Host Adapter, then
    // Create the Initial CCBs, Initialize the Host Adapter, and finally
    // perform Target Device Inquiry.
    if (BusLogic_ReadHostAdapterConfiguration(HostAdapter)           &&
        //BusLogic_ReportHostAdapterConfiguration(HostAdapter)       &&
        BusLogic_InitializeHostAdapter(deviceExtension, ConfigInfo)  &&
        BusLogic_TargetDeviceInquiry(HostAdapter))
    {
        // Fill in the:
        // 1.Maximum number of scsi target devices that are supported by our adapter
        ConfigInfo->MaximumNumberOfTargets = HostAdapter->MaxTargetDevices;
        // 2. Maximum number of logical units per target the HBA can control.
        ConfigInfo->MaximumNumberOfLogicalUnits  = HostAdapter->MaxLogicalUnits;
        ConfigInfo->InitiatorBusId[0] = HostAdapter->SCSI_ID;
        // Maximum number of breaks between address ranges that a data buffer can
        // have if the HBA supports scatter/gather. In other words, the number of
        // scatter/gather lists minus one.
        ConfigInfo->NumberOfPhysicalBreaks = HostAdapter->DriverScatterGatherLimit;
    }
    else
    {
        // An error occurred during Host Adapter Configuration Querying, Host
        // Adapter Configuration, Host Adapter Initialization, or Target Device Inquiry,
        // so return FALSE
 
        return FALSE;
    }
    // Initialization completed successfully
    return TRUE;
} // end Buslogic_InitBT958

Referenced by BT958HwFindAdapter().

BusLogic_InitializeCCB()

VOID BusLogic_InitializeCCB

(

PBuslogic_CCB_T

CCB

)

Definition at line 1425 of file BusLogic958.c.

{
  CCB->Opcode = BusLogic_InitiatorCCB;
  CCB->DataDirection = 0;
  CCB->TagEnable = 0;
  CCB->QueueTag = 0 ;
  CCB->CDB_Length = 0;
  CCB->SenseDataLength = 0;
  CCB->DataLength = 0;
  CCB->DataPointer = 0;
  CCB->HostAdapterStatus = 0;
  CCB->TargetDeviceStatus = 0;
  CCB->TargetID = 0;
  CCB->LogicalUnit = 0;
  CCB->LegacyTagEnable = 0;
  CCB->LegacyQueueTag = 0;
 
  CCB->SenseDataPointer = 0;
 
  // BusLogic Driver Defined Portion
  CCB->Status = 0;
  CCB->SerialNumber = 0;
  CCB->Next = NULL;
  CCB->HostAdapter = NULL;
 
  CCB->CompletionCode = 0;
  // Pointer to the CCB
  CCB->SrbAddress = NULL;
  CCB->AbortSrb = NULL;
}

Referenced by BT958HwStartIO().

BusLogic_InitializeHostAdapter()

BOOLEAN BusLogic_InitializeHostAdapter	(	PHW_DEVICE_EXTENSION	deviceExtension,
		PPORT_CONFIGURATION_INFORMATION	ConfigInfo
	)

Definition at line 1175 of file BusLogic958.c.

{
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
  BusLogic_ExtendedMailboxRequest_T ExtendedMailboxRequest;
  UCHAR RoundRobinModeRequest;
  UCHAR SetCCBFormatRequest;
  int TargetID, LunID;
 
  // Used when we get the Physical address of the mail boxes
  ULONG length;
 
  // Initialize the pointers to the first and last CCBs that are queued for
  // completion processing.
  HostAdapter->FirstCompletedCCB = NULL;
  HostAdapter->LastCompletedCCB = NULL;
 
  //  Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
  //  Command Successful Flag, Active Commands, and Commands Since Reset
  //  for each Target Device.
  for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
  {
      HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
      HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = FALSE;
      HostAdapter->TargetFlags[TargetID].CommandSuccessfulFlag = FALSE;
 
      HostAdapter->ActiveCommandsPerTarget[TargetID] = 0;
      for (LunID = 0; LunID < HostAdapter->MaxLogicalUnits; LunID++)
        HostAdapter->ActiveCommandsPerLun[TargetID][LunID] = 0;
 
      HostAdapter->CommandsSinceReset[TargetID] = 0;
  }
 
  // Convert virtual to physical mailbox address.
  deviceExtension->NoncachedExtension->MailboxPA =   ScsiPortConvertPhysicalAddressToUlong(
                                                                        ScsiPortGetPhysicalAddress(deviceExtension,
                                                                                                   NULL,
                                                                                                   deviceExtension->NoncachedExtension->MailboxOut,
                                                                                                   &length));
 
  HostAdapter->FirstOutgoingMailbox = (BusLogic_OutgoingMailbox_T *) deviceExtension->NoncachedExtension->MailboxOut;
  HostAdapter->LastOutgoingMailbox =  HostAdapter->FirstOutgoingMailbox + HostAdapter->MailboxCount - 1;
  HostAdapter->NextOutgoingMailbox =  HostAdapter->FirstOutgoingMailbox;
 
  HostAdapter->FirstIncomingMailbox = (BusLogic_IncomingMailbox_T *) deviceExtension->NoncachedExtension->MailboxIn;
  HostAdapter->LastIncomingMailbox =  HostAdapter->FirstIncomingMailbox + HostAdapter->MailboxCount - 1;
  HostAdapter->NextIncomingMailbox =  HostAdapter->FirstIncomingMailbox;
 
  //  Initialize the Outgoing and Incoming Mailbox structures.
  memset(HostAdapter->FirstOutgoingMailbox,
         0,
         HostAdapter->MailboxCount * sizeof(BusLogic_OutgoingMailbox_T));
  memset(HostAdapter->FirstIncomingMailbox,
         0,
         HostAdapter->MailboxCount * sizeof(BusLogic_IncomingMailbox_T));
 
 
  ExtendedMailboxRequest.MailboxCount = HostAdapter->MailboxCount;
  ExtendedMailboxRequest.BaseMailboxAddress = deviceExtension->NoncachedExtension->MailboxPA ;
 
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InitializeExtendedMailbox,
                       &ExtendedMailboxRequest,
                       sizeof(ExtendedMailboxRequest),
                       NULL, 0)
       < 0)
  {
      DebugPrint((ERROR, "\n BusLogic - Failure: MAILBOX INITIALIZATION\n"));
      return FALSE;
  }
 
  //  Enable Strict Round Robin Mode if supported by the Host Adapter.  In
  //  Strict Round Robin Mode, the Host Adapter only looks at the next Outgoing
  //  Mailbox for each new command, rather than scanning through all the
  //  Outgoing Mailboxes to find any that have new commands in them.  Strict
  //  Round Robin Mode is significantly more efficient.
  if (HostAdapter->StrictRoundRobinModeSupport)
  {
        RoundRobinModeRequest = BusLogic_StrictRoundRobinMode;
        if (BusLogic_Command(HostAdapter,
                             BusLogic_EnableStrictRoundRobinMode,
                             &RoundRobinModeRequest,
                             sizeof(RoundRobinModeRequest),
                             NULL,
                             0)
            < 0)
        {
            DebugPrint((ERROR, "\n BusLogic - Failure: ENABLE STRICT ROUND ROBIN MODE\n"));
            return FALSE;
        }
   }
 
  //  For Host Adapters that support Extended LUN Format CCBs, issue the Set CCB
  //  Format command to allow 32 Logical Units per Target Device.
 
  if (HostAdapter->ExtendedLUNSupport)
  {
      SetCCBFormatRequest = BusLogic_ExtendedLUNFormatCCB;
      if (BusLogic_Command(HostAdapter,
                           BusLogic_SetCCBFormat,
                           &SetCCBFormatRequest,
                           sizeof(SetCCBFormatRequest),
                           NULL,
                           0)
          < 0)
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: SET CCB FORMAT\n"));
          return FALSE;
      }
    }
 
  //  Announce Successful Initialization.
  if (!HostAdapter->HostAdapterInitialized)
  {
      DebugPrint((INFO, "\n BusLogic - %s Initialized Successfully\n",
                  HostAdapter, HostAdapter->FullModelName));
  }
  else
  {
      DebugPrint((WARNING, "\n BusLogic - %s not initialized Successfully\n",
                  HostAdapter, HostAdapter->FullModelName));
  }
  HostAdapter->HostAdapterInitialized = TRUE;
  //  Indicate the Host Adapter Initialization completed successfully.
  return TRUE;
}// end BusLogic_InitializeHostAdapter

Referenced by BT958HwAdapterControl(), BT958HwResetBus(), and Buslogic_InitBT958().

BusLogic_ProbeHostAdapter()

BOOLEAN BusLogic_ProbeHostAdapter

(

BusLogic_HostAdapter_T *

HostAdapter

)

Definition at line 416 of file BusLogic958.c.

{
  BusLogic_StatusRegister_T StatusRegister;
  BusLogic_InterruptRegister_T InterruptRegister;
  BusLogic_GeometryRegister_T GeometryRegister;
 
  DebugPrint((TRACE,"\n BusLogic -  Inside ProbeHostaAdapter function \n"));
  //  Read the Status, Interrupt, and Geometry Registers to test if there are I/O
  //  ports that respond, and to check the values to determine if they are from a
  //  BusLogic Host Adapter.  A nonexistent I/O port will return 0xFF, in which
  //  case there is definitely no BusLogic Host Adapter at this base I/O Address.
  //  The test here is a subset of that used by the BusLogic Host Adapter BIOS.
 
  InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
  GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
  StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
 
  if (StatusRegister.All == 0 ||
      StatusRegister.Bits.DiagnosticActive ||
      StatusRegister.Bits.CommandParameterRegisterBusy ||
      StatusRegister.Bits.Reserved ||
      StatusRegister.Bits.CommandInvalid ||
      InterruptRegister.Bits.Reserved != 0)
    return FALSE;
 
  //  Check the undocumented Geometry Register to test if there is an I/O port
  //  that responded.  Adaptec Host Adapters do not implement the Geometry
  //  Register, so this test helps serve to avoid incorrectly recognizing an
  //  Adaptec 1542A or 1542B as a BusLogic.  Unfortunately, the Adaptec 1542C
  //  series does respond to the Geometry Register I/O port, but it will be
  //  rejected later when the Inquire Extended Setup Information command is
  //  issued in BusLogic_CheckHostAdapter.  The AMI FastDisk Host Adapter is a
  //  BusLogic clone that implements the same interface as earlier BusLogic
  //  Host Adapters, including the undocumented commands, and is therefore
  //  supported by this driver.  However, the AMI FastDisk always returns 0x00
  //  upon reading the Geometry Register, so the extended translation option
  //  should always be left disabled on the AMI FastDisk.
 
  if (GeometryRegister.All == 0xFF) return FALSE;
  return TRUE;
}// end BusLogic_ProbeHostAdapter

Referenced by Buslogic_InitBT958().

BusLogic_ProcessCompletedCCBs()

void BusLogic_ProcessCompletedCCBs

(

PHW_DEVICE_EXTENSION

deviceExtension

)

Definition at line 2139 of file BusLogic958.c.

{
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
  PSCSI_REQUEST_BLOCK srb;
  PCDB RealCdb;
 
  if (HostAdapter->ProcessCompletedCCBsActive)
      return;
  HostAdapter->ProcessCompletedCCBsActive = TRUE;
  while (HostAdapter->FirstCompletedCCB != NULL)
  {
      BusLogic_CCB_T *CCB = HostAdapter->FirstCompletedCCB;
 
      // Get SRB from CCB.
      srb = CCB->SrbAddress;
 
       HostAdapter->FirstCompletedCCB = CCB->Next;
       if (HostAdapter->FirstCompletedCCB == NULL)
            HostAdapter->LastCompletedCCB = NULL;
 
      // Process the Completed CCB.
      if (CCB->Opcode == BusLogic_BusDeviceReset)
      {
          int TargetID = CCB->TargetID, LunID;
          DebugPrint((TRACE, "\n BusLogic - Bus Device Reset CCB #%ld to Target "
                      "%d Completed\n", CCB->SerialNumber, TargetID));
          BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsCompleted);
 
          HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = FALSE;
          HostAdapter->CommandsSinceReset[TargetID] = 0;
          //HostAdapter->LastResetCompleted[TargetID] = jiffies;
          HostAdapter->ActiveCommandsPerTarget[TargetID] = 0;
          for (LunID = 0; LunID < HostAdapter->MaxLogicalUnits; LunID++)
            HostAdapter->ActiveCommandsPerLun[TargetID][LunID] = 0;
 
          // Complete all outstanding requests with SRB_STATUS_BUS_RESET.
          ScsiPortCompleteRequest(deviceExtension,
                                  (UCHAR)srb->PathId,
                                  srb->TargetId,
                                  0xFF,
                                  (ULONG)SRB_STATUS_BUS_RESET);
 
 
          HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
      }
      else
      {
          // Translate the Completion Code, Host Adapter Status, and Target
          // Device Status into a SCSI Subsystem Result Code.
          switch (CCB->CompletionCode)
          {
            case BusLogic_IncomingMailboxFree:
            case BusLogic_InvalidCCB:
            {
                DebugPrint((ERROR, "\n BusLogic - CCB #%ld to Target %d Impossible "
                            "State\n", CCB->SerialNumber, CCB->TargetID));
                break;
            }
 
            //Processing for CCB that was to be aborted
            case BusLogic_AbortedCommandNotFound:
            {
                srb = CCB->AbortSrb;
                srb->SrbStatus = SRB_STATUS_ABORT_FAILED;
                break;
            }
 
            case BusLogic_CommandCompletedWithoutError:
            {
               HostAdapter->TargetStatistics[CCB->TargetID].CommandsCompleted++;
               HostAdapter->TargetFlags[CCB->TargetID].CommandSuccessfulFlag = TRUE;
 
               srb->SrbStatus = SRB_STATUS_SUCCESS;
               break;
            }
 
            case BusLogic_CommandAbortedAtHostRequest:
            {
              DebugPrint((TRACE, "\n BusLogic - CCB #%ld to Target %d Aborted\n",
                          CCB->SerialNumber, CCB->TargetID));
              //BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[CCB->TargetID].CommandAbortsCompleted);
 
              srb->SrbStatus = SRB_STATUS_ABORTED;
 
              // Call notification routine for the aborted SRB.
              ScsiPortNotification(RequestComplete,
                                   deviceExtension,
                                   srb);
 
              // Get the abort SRB from CCB.
              srb = CCB->AbortSrb;
 
               // Set status for completing abort request.
              srb->SrbStatus = SRB_STATUS_SUCCESS;
              break;
            }
 
            case BusLogic_CommandCompletedWithError:
            {
              RealCdb = (PCDB)CCB->CDB;
              DebugPrint((ERROR, "\n BusLogic - %x Command completed with error Host - "
                          "%x Target %x \n", RealCdb->CDB6GENERIC.OperationCode,
                          CCB->HostAdapterStatus, CCB->TargetDeviceStatus));
 
              srb->SrbStatus = BusLogic_ComputeResultCode(HostAdapter,
                                                           CCB->HostAdapterStatus,
                                                           CCB->TargetDeviceStatus,
                                                           CCB->SenseDataLength);
              if (CCB->HostAdapterStatus != BusLogic_SCSISelectionTimeout)
              {
                HostAdapter->TargetStatistics[CCB->TargetID].CommandsCompleted++;
              }
              break;
            }
 
            default:
            {
                       // Log the error.
               ScsiPortLogError(deviceExtension,
                                NULL,
                                0,
                                srb->TargetId,
                                0,
                                SP_INTERNAL_ADAPTER_ERROR,
                                143);
 
                DebugPrint((ERROR, "\n BusLogic - Unrecognized mailbox status\n"));
            }
 
          }// end switch
 
 
          // When an INQUIRY command completes normally, save the CmdQue (Tagged Queuing Supported)
          // and WBus16 (16 Bit Wide Data Transfers Supported) bits.
          RealCdb = (PCDB) CCB->CDB;
          if (RealCdb->CDB6INQUIRY.OperationCode == SCSIOP_INQUIRY &&
              CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally)
          {
              BusLogic_TargetFlags_T *TargetFlags =&HostAdapter->TargetFlags[CCB->TargetID];
              SCSI_Inquiry_T *InquiryResult =(SCSI_Inquiry_T *) srb->DataBuffer;
              TargetFlags->TargetExists = TRUE;
              TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue;
              TargetFlags->WideTransfersSupported = InquiryResult->WBus16;
          }
 
          DebugPrint((INFO, "\n BusLogic - SCSI Status %x\n", srb->ScsiStatus));
          DebugPrint((INFO, "\n BusLogic - HBA Status %x\n", CCB->HostAdapterStatus));
 
          // Update target status in SRB.
          srb->ScsiStatus = (UCHAR)CCB->TargetDeviceStatus;
 
          // Signal request completion.
          ScsiPortNotification(RequestComplete, (PVOID)deviceExtension, srb);
       }
    }
    HostAdapter->ProcessCompletedCCBsActive = FALSE;
}// end BusLogic_ProcessCompletedCCBs

Referenced by BT958HwInterrupt().

BusLogic_QueueCommand()

int BusLogic_QueueCommand	(	IN PVOID	HwDeviceExtension,
		IN PSCSI_REQUEST_BLOCK	Srb,
		PBuslogic_CCB_T	CCB
	)

Definition at line 1747 of file BusLogic958.c.

{
  PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
  BusLogic_TargetFlags_T *TargetFlags = &HostAdapter->TargetFlags[Srb->TargetId];
  BusLogic_TargetStatistics_T *TargetStatistics = HostAdapter->TargetStatistics;
 
  ULONG length;
 
//  UCHAR *Cdb = Srb->Cdb;
//  PCDB RealCdb ;
  UCHAR CDB_Length = Srb->CdbLength;
  UCHAR TargetID = Srb->TargetId;
  UCHAR LogicalUnit = Srb->Lun;
//  void *BufferPointer = Srb->DataBuffer;
  int BufferLength = Srb->DataTransferLength;
 
  if (Srb->DataTransferLength > 0)
  {
    CCB->DataLength = Srb->DataTransferLength;
 
  // Initialize the fields in the BusLogic Command Control Block (CCB).
#if SG_SUPPORT
    {
        ULONG xferLength, remainLength;
        PVOID virtualAddress;
        UCHAR i = 0;
 
        virtualAddress =  Srb->DataBuffer;
        xferLength = Srb->DataTransferLength;
        remainLength = xferLength;
        /* Build scatter gather list  */
        do
        {
            CCB->ScatterGatherList[i].SegmentDataPointer =  (ULONG)ScsiPortConvertPhysicalAddressToUlong(
                                                                        ScsiPortGetPhysicalAddress(HwDeviceExtension,
                                                                                                   Srb,
                                                                                                   virtualAddress,
                                                                                                   &length));
            if ( length > remainLength )
                length = remainLength;
            CCB->ScatterGatherList[i].SegmentByteCount = length;
 
            virtualAddress = (PUCHAR) virtualAddress + length;
            if (length >= remainLength)
                remainLength = 0;
            else
                remainLength -= length;
            i++;
        } while ( remainLength > 0);
 
        // For data transfers that have less than one scatter gather element, convert
        // CCB to one transfer without using SG element. This will clear up the data
        // overrun/underrun problem with small transfers that reak havoc with scanners
        // and CD-ROM's etc. This is the method employed in ASPI4DOS to avoid similar
        // problems.
        if (i > 1)
        {
            CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather;
            CCB->DataLength = i * sizeof(BusLogic_ScatterGatherSegment_T);
            virtualAddress = (PVOID) & (CCB->ScatterGatherList);
            CCB->DataPointer =  ScsiPortConvertPhysicalAddressToUlong(
                                    ScsiPortGetPhysicalAddress(HwDeviceExtension,
                                                               0,
                                                               (PVOID)virtualAddress,
                                                               &length));
        }
        else /* Turn off SG */
        {
            CCB->Opcode = BusLogic_InitiatorCCB;
            CCB->DataLength = CCB->ScatterGatherList[0].SegmentByteCount;
            CCB->DataPointer = CCB->ScatterGatherList[0].SegmentDataPointer;
 
        }
    }
#else
    CCB->Opcode = BusLogic_InitiatorCCB;
    CCB->DataLength = BufferLength;
    CCB->DataPointer =  ScsiPortConvertPhysicalAddressToUlong(ScsiPortGetPhysicalAddress(deviceExtension,
                                                                                       Srb,
                                                                                       BufferPointer,
                                                                                       &length));
#endif
  }
 
  switch (Srb->SrbFlags & SRB_FLAGS_UNSPECIFIED_DIRECTION)
  {
    case SRB_FLAGS_NO_DATA_TRANSFER:
        CCB->DataDirection = BusLogic_NoDataTransfer;
        break;
 
    case SRB_FLAGS_DATA_IN:
        CCB->DataDirection = BusLogic_DataInLengthChecked;
        TargetStatistics[TargetID].ReadCommands++;
        BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesRead,
                                      BufferLength);
        BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].ReadCommandSizeBuckets,
                                     BufferLength);
        break;
 
    case SRB_FLAGS_DATA_OUT:
        CCB->DataDirection = BusLogic_DataOutLengthChecked;
        TargetStatistics[TargetID].WriteCommands++;
        BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesWritten,
                                      BufferLength);
        BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].WriteCommandSizeBuckets,
                                     BufferLength);
 
        break;
 
    case SRB_FLAGS_UNSPECIFIED_DIRECTION:  /* let device decide direction */
    default:
        CCB->DataDirection = BusLogic_UncheckedDataTransfer;
        break;
  }
 
 
  CCB->CDB_Length = CDB_Length;
  CCB->SenseDataLength = Srb->SenseInfoBufferLength;
  CCB->HostAdapterStatus = 0;
  CCB->TargetDeviceStatus = 0;
  CCB->TargetID = TargetID;
  CCB->LogicalUnit = LogicalUnit;
  CCB->TagEnable = FALSE;
  CCB->LegacyTagEnable = FALSE;
 
  //  BusLogic recommends that after a Reset the first couple of commands that
  //  are sent to a Target Device be sent in a non Tagged Queue fashion so that
  //  the Host Adapter and Target Device can establish Synchronous and Wide
  //  Transfer before Queue Tag messages can interfere with the Synchronous and
  //  Wide Negotiation messages.  By waiting to enable Tagged Queuing until after
  //  the first BusLogic_MaxTaggedQueueDepth commands have been queued, it is
  //  assured that after a Reset any pending commands are requeued before Tagged
  //  Queuing is enabled and that the Tagged Queuing message will not occur while
  //  the partition table is being printed.  In addition, some devices do not
  //  properly handle the transition from non-tagged to tagged commands, so it is
  //  necessary to wait until there are no pending commands for a target device
  //  before queuing tagged commands.
 
  if (HostAdapter->CommandsSinceReset[TargetID]++ >= BusLogic_MaxTaggedQueueDepth &&
      HostAdapter->ActiveCommandsPerTarget[TargetID] == 0                         &&
      !TargetFlags->TaggedQueuingActive                                           &&
      TargetFlags->TaggedQueuingSupported                                         &&
      (HostAdapter->TaggedQueuingPermitted & (1 << TargetID)))
  {
      TargetFlags->TaggedQueuingActive = TRUE;
      DebugPrint((INFO, "\n BusLogic - Tagged Queuing now active for Target %d\n",
                  TargetID));
  }
  if (TargetFlags->TaggedQueuingActive)
  {
    BusLogic_QueueTag_T QueueTag = BusLogic_SimpleQueueTag;
 
    // When using Tagged Queuing with Simple Queue Tags, it appears that disk
    // drive controllers do not guarantee that a queued command will not
    // remain in a disconnected state indefinitely if commands that read or
    // write nearer the head position continue to arrive without interruption.
    // Therefore, for each Target Device this driver keeps track of the last
    // time either the queue was empty or an Ordered Queue Tag was issued.  If
    // more than 4 seconds (one fifth of the 20 second disk timeout) have
    // elapsed since this last sequence point, this command will be issued
    // with an Ordered Queue Tag rather than a Simple Queue Tag, which forces
    // the Target Device to complete all previously queued commands before
    // this command may be executed.
    /*
    if (HostAdapter->ActiveCommandsPerTarget[TargetID] == 0)
        HostAdapter->LastSequencePoint[TargetID] = jiffies;
    else if (jiffies - HostAdapter->LastSequencePoint[TargetID] > 4*HZ)
    {
      HostAdapter->LastSequencePoint[TargetID] = jiffies;
      QueueTag = BusLogic_OrderedQueueTag;
    }
    */
      if (HostAdapter->ExtendedLUNSupport)
    {
      CCB->TagEnable = TRUE;
      CCB->QueueTag = (UCHAR)QueueTag;
    }
    else
    {
      CCB->LegacyTagEnable = TRUE;
      CCB->LegacyQueueTag = (UCHAR)QueueTag;
    }
  }
 
  ScsiPortMoveMemory(CCB->CDB, Srb->Cdb, CDB_Length);
 
  //Fix for the XP Port driver - shuts of auto sense at times. 22nd May 2002
  //{sirish, shobhit}@calsoftinc.com
  if ((Srb->SrbFlags & SRB_FLAGS_DISABLE_AUTOSENSE) ||
        (Srb->SenseInfoBufferLength <= 0)) {
 
      //Disable auto request sense
      CCB->SenseDataLength = BusLogic_DisableAutoReqSense;
  } else {
      //Enable auto request sense
      CCB->SenseDataLength  = (unsigned char) Srb->SenseInfoBufferLength;
 
      //Sense Buffer physical addr
      CCB->SenseDataPointer = ScsiPortConvertPhysicalAddressToUlong(ScsiPortGetPhysicalAddress(HwDeviceExtension,
                                                                                           Srb,
                                                                                           Srb->SenseInfoBuffer,
                                                                                           &length));
      if (Srb->SenseInfoBufferLength > length ) {
          CCB->SenseDataLength = (unsigned char) length;
      }
  }
 
  return 0;
}// end BusLogic_QueueCommand

Referenced by BT958HwStartIO().

BusLogic_QueueCompletedCCB()

void BusLogic_QueueCompletedCCB	(	PHW_DEVICE_EXTENSION	deviceExtension,
		BusLogic_CCB_T *	CCB
	)

Definition at line 2108 of file BusLogic958.c.

{
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
 
  CCB->Status = BusLogic_CCB_Completed;
  CCB->Next = NULL;
  if (HostAdapter->FirstCompletedCCB == NULL)
  {
      HostAdapter->FirstCompletedCCB = CCB;
      HostAdapter->LastCompletedCCB = CCB;
  }
  else
  {
      HostAdapter->LastCompletedCCB->Next = CCB;
      HostAdapter->LastCompletedCCB = CCB;
  }
  HostAdapter->ActiveCommandsPerTarget[CCB->TargetID]--;
  HostAdapter->ActiveCommandsPerLun[CCB->TargetID][CCB->LogicalUnit]--;
 
}// end BusLogic_QueueCompletedCCB

Referenced by BusLogic_ScanIncomingMailboxes().

BusLogic_ReadHostAdapterConfiguration()

BOOLEAN BusLogic_ReadHostAdapterConfiguration

(

BusLogic_HostAdapter_T *

HostAdapter

)

save it in the Host Adapter structure. The BIOS is disabled if the

Definition at line 833 of file BusLogic958.c.

{
  BusLogic_BoardID_T BoardID;
  BusLogic_Configuration_T Configuration;
  BusLogic_SetupInformation_T SetupInformation;
  BusLogic_ExtendedSetupInformation_T ExtendedSetupInformation;
  BusLogic_HostAdapterModelNumber_T HostAdapterModelNumber;
  BusLogic_FirmwareVersion3rdDigit_T FirmwareVersion3rdDigit;
  BusLogic_FirmwareVersionLetter_T FirmwareVersionLetter;
  BusLogic_PCIHostAdapterInformation_T PCIHostAdapterInformation;
  BusLogic_FetchHostAdapterLocalRAMRequest_T FetchHostAdapterLocalRAMRequest;
  BusLogic_AutoSCSIData_T AutoSCSIData;
  BusLogic_GeometryRegister_T GeometryRegister;
  BusLogic_RequestedReplyLength_T RequestedReplyLength;
  UCHAR *TargetPointer, Character;
  ULONG /*TargetID,*/ i;
 
 
  //  Issue the Inquire Board ID command.
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireBoardID,
                       NULL,
                       0,
                       &BoardID, sizeof(BoardID))
      != sizeof(BoardID))
  {
        DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE BOARD ID\n"));
        return FALSE;
  }
 
  //  Issue the Inquire Configuration command.
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireConfiguration,
                       NULL,
                       0,
                       &Configuration, sizeof(Configuration))
      != sizeof(Configuration))
  {
      DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE CONFIGURATION\n"));
      return FALSE;
  }
 
  //  Issue the Inquire Setup Information command.
  RequestedReplyLength = sizeof(SetupInformation);
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireSetupInformation,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
                       &SetupInformation,
                       sizeof(SetupInformation))
      != sizeof(SetupInformation))
  {
     DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE SETUP INFORMATION\n"));
     return FALSE;
  }
 
  //  Issue the Inquire Extended Setup Information command.
  RequestedReplyLength = sizeof(ExtendedSetupInformation);
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireExtendedSetupInformation,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
                       &ExtendedSetupInformation,
                       sizeof(ExtendedSetupInformation))
      != sizeof(ExtendedSetupInformation))
  {
      DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE EXTENDED SETUP INFORMATION\n"));
      return FALSE;
  }
 
  //  Issue the Inquire Firmware Version 3rd Digit command.
  FirmwareVersion3rdDigit = '\0';
  if (BoardID.FirmwareVersion1stDigit > '0')
  {
    if (BusLogic_Command(HostAdapter,
                         BusLogic_InquireFirmwareVersion3rdDigit,
                         NULL,
                         0,
                         &FirmwareVersion3rdDigit,
                         sizeof(FirmwareVersion3rdDigit))
        != sizeof(FirmwareVersion3rdDigit))
    {
        DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE FIRMWARE 3RD DIGIT\n"));
        return FALSE;
    }
  }
 
  //  Issue the Inquire Host Adapter Model Number command.
  RequestedReplyLength = sizeof(HostAdapterModelNumber);
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireHostAdapterModelNumber,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
                       &HostAdapterModelNumber,
                       sizeof(HostAdapterModelNumber))
      != sizeof(HostAdapterModelNumber))
  {
      DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE HOST ADAPTER MODEL NUMBER\n"));
      return FALSE;
  }
 
  //  BusLogic MultiMaster Host Adapters can be identified by their model number
  //  and the major version number of their firmware as follows:
  //
  //  5.xx  BusLogic "W" Series Host Adapters:
  //          BT-948/958/958D
  //  Save the Model Name and Host Adapter Name in the Host Adapter structure.
  TargetPointer = HostAdapter->ModelName;
  *TargetPointer++ = 'B';
  *TargetPointer++ = 'T';
  *TargetPointer++ = '-';
  for (i = 0; i < sizeof(HostAdapterModelNumber); i++)
  {
      Character = HostAdapterModelNumber[i];
      if (Character == ' ' || Character == '\0') break;
      *TargetPointer++ = Character;
  }
  *TargetPointer++ = '\0';
 
  // Save the Firmware Version in the Host Adapter structure.
  TargetPointer = HostAdapter->FirmwareVersion;
  *TargetPointer++ = BoardID.FirmwareVersion1stDigit;
  *TargetPointer++ = '.';
  *TargetPointer++ = BoardID.FirmwareVersion2ndDigit;
  if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0')
    *TargetPointer++ = FirmwareVersion3rdDigit;
  *TargetPointer = '\0';
 
  // Issue the Inquire Firmware Version Letter command.
  if (strcmp((char*)HostAdapter->FirmwareVersion, "3.3") >= 0)
  {
      if (BusLogic_Command(HostAdapter,
                           BusLogic_InquireFirmwareVersionLetter,
                           NULL,
                           0,
                           &FirmwareVersionLetter,
                           sizeof(FirmwareVersionLetter))
          != sizeof(FirmwareVersionLetter))
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE FIRMWARE VERSION LETTER\n"));
          return FALSE;
      }
      if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0')
      {
        *TargetPointer++ = FirmwareVersionLetter;
      }
      *TargetPointer = '\0';
  }
 
 
  //  Save the Host Adapter SCSI ID in the Host Adapter structure.
  HostAdapter->SCSI_ID = Configuration.HostAdapterID;
 
  //  Determine the Bus Type and save it in the Host Adapter structure, determine
  //  and save the IRQ Channel if necessary, and determine and save the DMA
  //  Channel for ISA Host Adapters.
  HostAdapter->HostAdapterBusType =  BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4'];
 
  GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
 
  //  Determine whether Extended Translation is enabled and save it in
  //  the Host Adapter structure.
  //  HostAdapter->ExtendedTranslationEnabled =  GeometryRegister.Bits.ExtendedTranslationEnabled;
  HostAdapter->ExtendedTranslationEnabled =  GeometryRegister.All;
 
 
  //  Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
  //  SCSI flag, Differential SCSI flag, SCAM Supported flag, and
  //  Ultra SCSI flag in the Host Adapter structure.
  HostAdapter->HostAdapterScatterGatherLimit =  ExtendedSetupInformation.ScatterGatherLimit;
 
  HostAdapter->DriverScatterGatherLimit =   HostAdapter->HostAdapterScatterGatherLimit;
 
  if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit)
  {
    HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
  }
  if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt)
  {
    HostAdapter->LevelSensitiveInterrupt = TRUE;
  }
 
  HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI;
 
  HostAdapter->HostDifferentialSCSI =  ExtendedSetupInformation.HostDifferentialSCSI;
 
  HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM;
 
  HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI;
 
 
  //  Determine whether Extended LUN Format CCBs are supported and save the
  //  information in the Host Adapter structure.
  if (HostAdapter->FirmwareVersion[0] == '5' ||
      (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI))
  {
    HostAdapter->ExtendedLUNSupport = TRUE;
  }
  // Issue the Inquire PCI Host Adapter Information command to read the
  // Termination Information from "W" series MultiMaster Host Adapters.
  if (HostAdapter->FirmwareVersion[0] == '5')
  {
      if (BusLogic_Command(HostAdapter,
                           BusLogic_InquirePCIHostAdapterInformation,
                           NULL,
                           0,
                           &PCIHostAdapterInformation,
                           sizeof(PCIHostAdapterInformation))
          != sizeof(PCIHostAdapterInformation))
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE PCI HOST ADAPTER INFORMATION\n"));
          return FALSE;
      }
 
       // Save the Termination Information in the Host Adapter structure.
      if (PCIHostAdapterInformation.GenericInfoValid)
      {
        HostAdapter->TerminationInfoValid = TRUE;
        HostAdapter->LowByteTerminated =  PCIHostAdapterInformation.LowByteTerminated;
        HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated;
      }
  }
 
  //  Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data
  //  from "W" and "C" series MultiMaster Host Adapters.
  if (HostAdapter->FirmwareVersion[0] >= '4')
  {
      FetchHostAdapterLocalRAMRequest.ByteOffset =  BusLogic_AutoSCSI_BaseOffset;
      FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData);
      if (BusLogic_Command(HostAdapter,
                           BusLogic_FetchHostAdapterLocalRAM,
                           &FetchHostAdapterLocalRAMRequest,
                           sizeof(FetchHostAdapterLocalRAMRequest),
                           &AutoSCSIData,
                           sizeof(AutoSCSIData))
          != sizeof(AutoSCSIData))
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: FETCH HOST ADAPTER LOCAL RAM\n"));
          return FALSE;
      }
      // Save the Parity Checking Enabled, Bus Reset Enabled, and Termination
      // Information in the Host Adapter structure.
      HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled;
      HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled;
 
      // Save the Wide Permitted, Fast Permitted, Synchronous Permitted,
      // Disconnect Permitted, Ultra Permitted, and SCAM Information in the
      // Host Adapter structure.
      HostAdapter->WidePermitted = AutoSCSIData.WidePermitted;
      HostAdapter->FastPermitted = AutoSCSIData.FastPermitted;
      HostAdapter->SynchronousPermitted =   AutoSCSIData.SynchronousPermitted;
      HostAdapter->DisconnectPermitted =    AutoSCSIData.DisconnectPermitted;
      if (HostAdapter->HostUltraSCSI)
      {
        HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted;
      }
      if (HostAdapter->HostSupportsSCAM)
      {
          HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled;
          HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2;
      }
    }
 
    // Determine the maximum number of Target IDs and Logical Units supported by
    // this driver for Wide and Narrow Host Adapters.
    HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
    HostAdapter->MaxLogicalUnits = (HostAdapter->ExtendedLUNSupport ? 32 : 8);
 
    // Select appropriate values for the Mailbox Count,
    // Initial CCBs, and Incremental CCBs variables based on whether or not Strict
    // Round Robin Mode is supported.  If Strict Round Robin Mode is supported,
    // then there is no performance degradation in using the maximum possible
    // number of Outgoing and Incoming Mailboxes and allowing the Tagged and
    // Untagged Queue Depths to determine the actual utilization.  If Strict Round
    // Robin Mode is not supported, then the Host Adapter must scan all the
    // Outgoing Mailboxes whenever an Outgoing Mailbox entry is made, which can
    // cause a substantial performance penalty.  The host adapters actually have
    // room to store the following number of CCBs internally; that is, they can
    // internally queue and manage this many active commands on the SCSI bus
    // simultaneously.  Performance measurements demonstrate that the Driver Queue
    // Depth should be set to the Mailbox Count, rather than the Host Adapter
    // Queue Depth (internal CCB capacity), as it is more efficient to have the
    // queued commands waiting in Outgoing Mailboxes if necessary than to block
    // the process in the higher levels of the SCSI Subsystem.
    //
    // 192    BT-948/958/958D
    if (HostAdapter->FirmwareVersion[0] == '5')
    {
        HostAdapter->HostAdapterQueueDepth = 192;
    }
 
    if (strcmp((char*)HostAdapter->FirmwareVersion, "3.31") >= 0)
    {
      HostAdapter->StrictRoundRobinModeSupport = TRUE;
      HostAdapter->MailboxCount = BusLogic_MaxMailboxes;
    }
 
    //
    // Tagged Queuing support is available and operates properly on all "W" series
    // MultiMaster Host Adapters, on "C" series MultiMaster Host Adapters with
    // firmware version 4.22 and above, and on "S" series MultiMaster Host
    // Adapters with firmware version 3.35 and above.
    HostAdapter->TaggedQueuingPermitted = 0xFFFF;
 
    //
    // Determine the Host Adapter BIOS Address if the BIOS is enabled and
    // BIOS_Address is 0.
    HostAdapter->BIOS_Address = ExtendedSetupInformation.BIOS_Address << 12;
 
    //
    //Initialize parameters for MultiMaster Host Adapters.
 
    //
    // Initialize the Host Adapter Full Model Name from the Model Name.
    strcpy((char*)HostAdapter->FullModelName, "BusLogic ");
    strcat((char*)HostAdapter->FullModelName, (char*)HostAdapter->ModelName);
 
    // Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
    // Therefore, mask the Tagged Queuing Permitted Default bits with the
    // Disconnect/Reconnect Permitted bits.
    HostAdapter->TaggedQueuingPermitted &= HostAdapter->DisconnectPermitted;
 
    // Select an appropriate value for Bus Settle Time either from a BusLogic
    // Driver Options specification, or from BusLogic_DefaultBusSettleTime.
    HostAdapter->BusSettleTime = BusLogic_DefaultBusSettleTime;
 
    // Indicate reading the Host Adapter Configuration completed successfully.
    return TRUE;
}// end BusLogic_ReadHostAdapterConfiguration

Referenced by Buslogic_InitBT958().

BusLogic_ScanIncomingMailboxes()

void BusLogic_ScanIncomingMailboxes

(

PHW_DEVICE_EXTENSION

deviceExtension

)

Definition at line 2048 of file BusLogic958.c.

{
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
 
 
  //  Scan through the Incoming Mailboxes in Strict Round Robin fashion, saving
  //  any completed CCBs for further processing.  It is essential that for each
  //  CCB and SCSI Command issued, command completion processing is performed
  //  exactly once.  Therefore, only Incoming Mailboxes with completion code
  //  Command Completed Without Error, Command Completed With Error, or Command
  //  Aborted At Host Request are saved for completion processing.  When an
  //  Incoming Mailbox has a completion code of Aborted Command Not Found, the
  //  CCB had already completed or been aborted before the current Abort request
  //  was processed, and so completion processing has already occurred and no
  //  further action should be taken.
  BusLogic_IncomingMailbox_T *NextIncomingMailbox =    HostAdapter->NextIncomingMailbox;
  BusLogic_CompletionCode_T CompletionCode;
 
  while ((CompletionCode = NextIncomingMailbox->CompletionCode) != BusLogic_IncomingMailboxFree)
  {
      // Convert Physical CCB to Virtual.
      BusLogic_CCB_T *CCB = (BusLogic_CCB_T *) ScsiPortGetVirtualAddress(deviceExtension,
                                                                         ScsiPortConvertUlongToPhysicalAddress(NextIncomingMailbox->CCB));
 
      DebugPrint((INFO, "\n Buslogic - Virtual CCB %lx\n", CCB));
      if (CompletionCode != BusLogic_AbortedCommandNotFound)
      {
        if (CCB->Status == BusLogic_CCB_Active || CCB->Status == BusLogic_CCB_Reset)
        {
 
            // Save the Completion Code for this CCB and queue the CCB
            // for completion processing.
            CCB->CompletionCode = CompletionCode;
            BusLogic_QueueCompletedCCB(deviceExtension,CCB);
        }
        else
        {
            // If a CCB ever appears in an Incoming Mailbox and is not marked
            // as status Active or Reset, then there is most likely a bug in
            // the Host Adapter firmware.
            DebugPrint((ERROR, "\n BusLogic - Illegal CCB #%ld status %d in "
                        "Incoming Mailbox\n", CCB->SerialNumber, CCB->Status));
        }
      }
      NextIncomingMailbox->CompletionCode = BusLogic_IncomingMailboxFree;
      if (++NextIncomingMailbox > HostAdapter->LastIncomingMailbox)
        NextIncomingMailbox = HostAdapter->FirstIncomingMailbox;
  }
  HostAdapter->NextIncomingMailbox = NextIncomingMailbox;
}// end BusLogic_ScanIncomingMailboxes

Referenced by BT958HwInterrupt().

BusLogic_SendBusDeviceReset()

BOOLEAN BusLogic_SendBusDeviceReset	(	IN PVOID	HwDeviceExtension,
		PSCSI_REQUEST_BLOCK	Srb
	)

Definition at line 2535 of file BusLogic958.c.

{
 
  PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
 
  UCHAR TargetID = Srb->TargetId;
  PBuslogic_CCB_T CCB = Srb->SrbExtension;
  BOOLEAN Result = FALSE;
  BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsRequested);
 
  //  If this is a Synchronous Reset and a Bus Device Reset is already pending
  //  for this Target Device, do not send a second one.  Add this Command to
  //  the list of Commands for which completion processing must be performed
  //  when the Bus Device Reset CCB completes.
 
  if (HostAdapter->BusDeviceResetPendingCCB[TargetID] != NULL)
  {
    DebugPrint((WARNING, "\n BusLogic - Unable to Reset Command to Target %d - "
                "Reset Pending\n", TargetID));
    Result = TRUE;
    goto Done;
  }
 
  DebugPrint((WARNING, "\n BusLogic - Sending Bus Device Reset CCB #%ld to Target %d\n",
              CCB->SerialNumber, TargetID));
  CCB->Opcode = BusLogic_BusDeviceReset;
  CCB->TargetID = TargetID;
 
 
  //    Attempt to write an Outgoing Mailbox with the Bus Device Reset CCB.
  //    If sending a Bus Device Reset is impossible, attempt a full Host
  //    Adapter Hard Reset and SCSI Bus Reset.
  if (!(BusLogic_WriteOutgoingMailbox(deviceExtension, BusLogic_MailboxStartCommand, CCB)))
  {
      DebugPrint((WARNING, "\n BusLogic - Unable to write Outgoing Mailbox for "
                  "Bus Device Reset\n"));
      goto Done;
  }
 
  //  If there is a currently executing CCB in the Host Adapter for this Command
  //  (i.e. this is an Asynchronous Reset), then an Incoming Mailbox entry may be
  //  made with a completion code of BusLogic_HostAdapterAssertedBusDeviceReset.
  //  If there is no active CCB for this Command (i.e. this is a Synchronous
  //  Reset), then the Bus Device Reset CCB's Command field will have been set
  //  to the Command so that the interrupt for the completion of the Bus Device
  //  Reset can call the Completion Routine for the Command.  On successful
  //  execution of a Bus Device Reset, older firmware versions did return the
  //  pending CCBs with the appropriate completion code, but more recent firmware
  //  versions only return the Bus Device Reset CCB itself.  This driver handles
  //  both cases by marking all the currently executing CCBs to this Target
  //  Device as Reset.  When the Bus Device Reset CCB is processed by the
  //  interrupt handler, any remaining CCBs marked as Reset will have completion
  //  processing performed.
 
  BusLogic_IncrementErrorCounter( &HostAdapter->TargetStatistics[TargetID].BusDeviceResetsAttempted);
  HostAdapter->BusDeviceResetPendingCCB[TargetID] = CCB;
  //HostAdapter->LastResetAttempted[TargetID] = jiffies;
 
  // FlashPoint Host Adapters may have already completed the Bus Device
  // Reset and BusLogic_QueueCompletedCCB been called, or it may still be
  // pending.
 
  Result = TRUE;
  //  If a Bus Device Reset was not possible for some reason, force a full
  //  Host Adapter Hard Reset and SCSI Bus Reset.
 
Done:
  return Result;
}

Referenced by BT958HwStartIO().

BusLogic_TargetDeviceInquiry()

BOOLEAN BusLogic_TargetDeviceInquiry

(

BusLogic_HostAdapter_T *

HostAdapter

)

Definition at line 1316 of file BusLogic958.c.

{
  BusLogic_InstalledDevices_T InstalledDevices;
//  BusLogic_InstalledDevices8_T InstalledDevicesID0to7;
  BusLogic_SetupInformation_T SetupInformation;
  BusLogic_SynchronousPeriod_T SynchronousPeriod;
  BusLogic_RequestedReplyLength_T RequestedReplyLength;
  int TargetID;
 
  //  Wait a few seconds between the Host Adapter Hard Reset which initiates
  //  a SCSI Bus Reset and issuing any SCSI Commands.  Some SCSI devices get
  //  confused if they receive SCSI Commands too soon after a SCSI Bus Reset.
  ScsiPortStallExecution(HostAdapter->BusSettleTime);
 
  //
  //  Issue the Inquire Target Devices command for host adapters with firmware
  //  version 4.25 or later, or the Inquire Installed Devices ID 0 to 7 command
  //  for older host adapters.  This is necessary to force Synchronous Transfer
  //  Negotiation so that the Inquire Setup Information and Inquire Synchronous
  //  Period commands will return valid data.  The Inquire Target Devices command
  //  is preferable to Inquire Installed Devices ID 0 to 7 since it only probes
  //  Logical Unit 0 of each Target Device.
  if (strcmp((char*)HostAdapter->FirmwareVersion, "4.25") >= 0)
  {
      if (BusLogic_Command(HostAdapter,
                           BusLogic_InquireTargetDevices,
                           NULL,
                           0,
                           &InstalledDevices,
                           sizeof(InstalledDevices))
            != sizeof(InstalledDevices))
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE TARGET DEVICES\n"));
          return FALSE;
      }
      for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
      {
            HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevices & (1 << TargetID) ? TRUE : FALSE);
      }
  }
 
  //  Issue the Inquire Setup Information command.
  RequestedReplyLength = sizeof(SetupInformation);
  if (BusLogic_Command(HostAdapter,
                       BusLogic_InquireSetupInformation,
                       &RequestedReplyLength,
                       sizeof(RequestedReplyLength),
               &SetupInformation, sizeof(SetupInformation))
      != sizeof(SetupInformation))
  {
      DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE SETUP INFORMATION\n"));
      return FALSE;
  }
 
  for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
  {
      HostAdapter->SynchronousOffset[TargetID] = (TargetID < 8
                                                  ? SetupInformation.SynchronousValuesID0to7[TargetID].Offset
                                                  : SetupInformation.SynchronousValuesID8to15[TargetID-8].Offset);
  }
  if (strcmp((char*)HostAdapter->FirmwareVersion, "5.06L") >= 0)
  {
    for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
    {
      HostAdapter->TargetFlags[TargetID].WideTransfersActive = (TargetID < 8
                                                                ? (SetupInformation.WideTransfersActiveID0to7 & (1 << TargetID)
                                                                    ? TRUE : FALSE)
                                                                : (SetupInformation.WideTransfersActiveID8to15 & (1 << (TargetID-8))
                                                                    ? TRUE : FALSE));
    }
  }
 
 
  //  Issue the Inquire Synchronous Period command.
  if (HostAdapter->FirmwareVersion[0] >= '3')
  {
      RequestedReplyLength = sizeof(SynchronousPeriod);
      if (BusLogic_Command(HostAdapter,
                           BusLogic_InquireSynchronousPeriod,
                           &RequestedReplyLength,
                           sizeof(RequestedReplyLength),
                           &SynchronousPeriod,
                           sizeof(SynchronousPeriod))
        != sizeof(SynchronousPeriod))
      {
          DebugPrint((ERROR, "\n BusLogic - Failure: INQUIRE SYNCHRONOUS PERIOD\n"));
          return FALSE;
      }
      for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
      {
        HostAdapter->SynchronousPeriod[TargetID] = SynchronousPeriod[TargetID];
      }
  }
 
  //  Indicate the Target Device Inquiry completed successfully.
  return TRUE;
}// end BusLogic_TargetDeviceInquiry

Referenced by Buslogic_InitBT958().

BusLogic_WriteOutgoingMailbox()

BOOLEAN BusLogic_WriteOutgoingMailbox	(	PHW_DEVICE_EXTENSION	deviceExtension,
		BusLogic_ActionCode_T	ActionCode,
		BusLogic_CCB_T *	CCB
	)

Definition at line 1679 of file BusLogic958.c.

{
  BusLogic_HostAdapter_T *HostAdapter = &(deviceExtension->hcs);
  BusLogic_OutgoingMailbox_T *NextOutgoingMailbox;
  ULONG length;
 
  NextOutgoingMailbox = HostAdapter->NextOutgoingMailbox;
 
  if (NextOutgoingMailbox->ActionCode == BusLogic_OutgoingMailboxFree)
  {
      CCB->Status = BusLogic_CCB_Active;
 
      // The CCB field must be written before the Action Code field since
      // the Host Adapter is operating asynchronously and the locking code
      // does not protect against simultaneous access by the Host Adapter.
 
      // Get CCB physical address.
      NextOutgoingMailbox->CCB = ScsiPortConvertPhysicalAddressToUlong( ScsiPortGetPhysicalAddress(deviceExtension,
                                                                                    NULL,
                                                                                    CCB,
                                                                                    &length));
 
      NextOutgoingMailbox->ActionCode = (UCHAR)ActionCode;
 
      BusLogic_StartMailboxCommand(HostAdapter);
 
      if (++NextOutgoingMailbox > HostAdapter->LastOutgoingMailbox)
      {
        NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox;
      }
 
      HostAdapter->NextOutgoingMailbox = NextOutgoingMailbox;
      if (ActionCode == BusLogic_MailboxStartCommand)
      {
        HostAdapter->ActiveCommandsPerTarget[CCB->TargetID]++;
        // check this Namita
        HostAdapter->ActiveCommandsPerLun[CCB->TargetID][CCB->LogicalUnit]++;
        if (CCB->Opcode != BusLogic_BusDeviceReset)
        {
          HostAdapter->TargetStatistics[CCB->TargetID].CommandsAttempted++;
        }
      }
      return TRUE;
  }
  return FALSE;
}// end BusLogic_WriteOutgoingMailbox

Referenced by BT958HwStartIO(), and BusLogic_SendBusDeviceReset().

DriverEntry()

ULONG NTAPI DriverEntry	(	IN PVOID	DriverObject,
		IN PVOID	Argument2
	)

Definition at line 84 of file BusLogic958.c.

{
    HW_INITIALIZATION_DATA hwInitializationData;
    ULONG Status;
    ULONG i;
    ULONG HwContext;
//    static int    cardNo = 0;
 
    UCHAR VendorId[4] = { '1', '0', '4', 'b'        };
    UCHAR DeviceId[4] = { '1', '0', '4', '0'        };
 
    DebugPrint((TRACE,"\n BusLogic -  Inside the DriverEntry function \n"));
 
    // Zero out structure.
    for (i = 0; i < sizeof(HW_INITIALIZATION_DATA); i++)
    {
        ((PUCHAR) & hwInitializationData)[i] = 0;
    }
 
    // Set size of hwInitializationData.
    hwInitializationData.HwInitializationDataSize = sizeof(HW_INITIALIZATION_DATA);
 
    // Set entry points.
    hwInitializationData.HwInitialize =     BT958HwInitialize;
    hwInitializationData.HwResetBus =       BT958HwResetBus;
    hwInitializationData.HwStartIo =        BT958HwStartIO;
    hwInitializationData.HwInterrupt =      BT958HwInterrupt;
    hwInitializationData.HwAdapterControl = BT958HwAdapterControl;
    hwInitializationData.HwFindAdapter =    BT958HwFindAdapter;
 
    // Indicate no buffer mapping but will need physical addresses
    hwInitializationData.NeedPhysicalAddresses = TRUE;
 
    // Indicate Auto request sense is supported
    hwInitializationData.AutoRequestSense = TRUE;
    hwInitializationData.MultipleRequestPerLu = TRUE;
 
#if TAG_QUEUING
    hwInitializationData.TaggedQueuing = TRUE;
#else
    hwInitializationData.TaggedQueuing = FALSE;
#endif
 
    hwInitializationData.AdapterInterfaceType = PCIBus;
 
    // Fill in the vendor id and the device id
    hwInitializationData.VendorId = &VendorId;
    hwInitializationData.VendorIdLength = 4;
    hwInitializationData.DeviceId = &DeviceId;
    hwInitializationData.DeviceIdLength = 4;
 
 
    hwInitializationData.NumberOfAccessRanges = 2;
 
 
    // Specify size of extensions.
    hwInitializationData.DeviceExtensionSize = sizeof(HW_DEVICE_EXTENSION);
 
    // logical unit extension
    hwInitializationData.SrbExtensionSize = sizeof(BusLogic_CCB_T);
 
    HwContext = 0;
 
    DebugPrint((TRACE,"\n BusLogic -  Calling the ScsiPortInitialize Routine\n"));
 
    Status = ScsiPortInitialize(DriverObject,
                                Argument2,
                                &hwInitializationData,
                                &HwContext);
 
    DebugPrint((TRACE,"\n BusLogic -  Exiting the DriverEntry function \n"));
    DebugPrint((INFO,"\n BusLogic - Status = %ul \n", Status));
    return( Status );
 
} // end DriverEntry()