PVOID
ScsiPortGetVirtualAddress(
IN PVOID HwDeviceExtension,
IN SCSI_PHYSICAL_ADDRESS PhysicalAddress
)
/*++
Routine Description:
This routine is returns a virtual address associated with a
physical address, if the physical address was obtained by a
call to ScsiPortGetPhysicalAddress.
Arguments:
PhysicalAddress
Return Value:
Virtual address
--*/
{
PADAPTER_EXTENSION deviceExtension = GET_FDO_EXTENSION(HwDeviceExtension);
PVOID address;
ULONG smallphysicalBase;
ULONG smallAddress;
smallAddress = ScsiPortConvertPhysicalAddressToUlong(PhysicalAddress);
smallphysicalBase = ScsiPortConvertPhysicalAddressToUlong(deviceExtension->PhysicalCommonBuffer);
//
// Check that the physical address is within the proper range.
//
if (smallAddress < smallphysicalBase ||
smallAddress >= smallphysicalBase + deviceExtension->CommonBufferSize) {
//
// This is a bugous physical address return back NULL.
//
return(NULL);
}
address = smallAddress - smallphysicalBase +
(PUCHAR) deviceExtension->SrbExtensionBuffer;
return address;
} // end ScsiPortGetVirtualAddress()
void
GetXferSegment (const ADAPTER_PTR HA, IO_REQ_PTR Req, SegmentDescr *SGDescr,
U32 Offset, BOOLEAN DemandPhysicalAddr)
{
TRACE(4, ("GetXferSegment(): Offset = %d\n", Offset));
TRACE(4, ("GetXferSegment(): Non-S/G request, ReqDataCount = %d\n", ReqDataCount(Req)));
if (Offset < ReqDataCount(Req)) { // Make sure we don't over run
SGDescr->SegmentLength = ReqDataCount(Req) - Offset;
SGDescr->SegmentPtr = (U32)ReqDataPtr(Req) + Offset;
} else {
SGDescr->SegmentLength = 0; // No data left
SGDescr->SegmentPtr = 0;
BreakPoint(HA);
}
TRACE(4, ("GetXferSegment(): %d bytes remain in segment at %08x (offset %d)\n",
SGDescr->SegmentLength, SGDescr->SegmentPtr, Offset));
SGDescr->Flags.IsPhysical = FALSE;
if (DemandPhysicalAddr) {
if (ReqState(Req).InternalRequest) {
TRACE(5, ("GetXferSegment(): Mapping internal request\n"));
MapToPhysical(HA, SGDescr);
} else {
ULONG Size = SGDescr->SegmentLength;
SGDescr->SegmentPtr = (U32)ScsiPortConvertPhysicalAddressToUlong(
ScsiPortGetPhysicalAddress(HA, Req,
(PVOID)((U32)ReqDataPtr(Req) + Offset) /*(SGDescr->SegmentPtr)*/,
&Size));
if (Size < SGDescr->SegmentLength)
SGDescr->SegmentLength = Size;
DEBUG(5, {
if (SGDescr->SegmentLength < (ReqDataCount(Req) - Offset))
DPrintf("Segment length is %d out of %d\n",
SGDescr->SegmentLength, ReqDataCount(Req) - Offset);});
SGDescr->Flags.IsPhysical = TRUE;
TRACE(5, ("GetXferSegment(): Mapped to 0x%lx for %lu bytes\n",
SGDescr->SegmentPtr, Size));
}
}
ULONG
FindAdapter (IN PVOID HAObject, IN PVOID PContext, IN PVOID BusInfo,
IN PCHAR ArgString, IN OUT PPORT_CONFIGURATION_INFORMATION Config,
OUT PBOOLEAN PAgain)
{
ADAPTER_PTR HA = HAObject;
TRACE(3, ("FindAdapter(): Adapter ptr = %x, Config ptr = %x, Len = 0x%x\n", HA, Config, sizeof(struct _PORT_CONFIGURATION_INFORMATION)));
/* Hunt down and register the adapters in the system: */
HA->IOBaseAddr = (U16)ScsiPortConvertPhysicalAddressToUlong(
(*Config->AccessRanges)[0].RangeStart);
if (Adapter_Init(HA, (unsigned *)PContext)) {
// Set Again TRUE, only if we're being called with a non-sepcific access range
*PAgain = ScsiPortConvertPhysicalAddressToUlong(
(*Config->AccessRanges)[0].RangeStart) == 0;
Config->BusInterruptLevel = HA->IRQNumber;
Config->ScatterGather = HA->Supports.ScatterGather;
Config->MaximumTransferLength = 0x400000;
Config->NumberOfPhysicalBreaks = 0x400;
// Config->NumberOfPhysicalBreaks = HA->MaxSGListLength;
(*Config->AccessRanges)[0].RangeStart = ScsiPortConvertUlongToPhysicalAddress(HA->IOBaseAddr);
(*Config->AccessRanges)[0].RangeLength = HA->IOAddrLen;
(*Config->AccessRanges)[0].RangeInMemory = FALSE;
Config->NumberOfBuses = 1;
Config->InitiatorBusId[0] = HA->SCSI_ID;
Config->Master = (HA->Physical.Xfermode == XM_MASTER) || (HA->Physical.Xfermode == XM_MASTER24);
Config->Dma32BitAddresses = (HA->Physical.Xfermode == XM_MASTER);
Config->DemandMode = (HA->Physical.Xfermode == XM_DMAD);
Config->NeedPhysicalAddresses = XM_PHYSICAL(HA->Physical.Xfermode);
Config->MapBuffers = TRUE;
Config->CachesData = HA->Supports.Caching;
Config->AlignmentMask = 0x3;
Config->TaggedQueuing = FALSE;
#if defined(AUTOSENSE)
Config->AutoRequestSense = TRUE;
#else
Config->AutoRequestSense = FALSE;
#endif
Config->MultipleRequestPerLu = Config->AutoRequestSense;
Config->ReceiveEvent = FALSE;
HA->Ext = ScsiPortGetUncachedExtension(HA, Config, sizeof(AdapterExtension));
return SP_RETURN_FOUND;
} else {
*PAgain = FALSE;
return SP_RETURN_NOT_FOUND;
}
}
ULONG
Wd7000ExFindAdapter(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
/*++
Routine Description:
This function is called by the OS-specific port driver after
the necessary storage has been allocated, to gather information
about the adapter's configuration.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
ConfigInfo - Configuration information structure describing HBA
Return Value:
TRUE if adapter present in system
--*/
{
PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
PEISA_CONTROLLER eisaController;
PULONG adapterCount = Context;
PNONCACHED_EXTENSION ncExtension;
ULONG eisaSlotNumber;
PICB icb;
PADAPTER_INQUIRY adapterInquiry;
ULONG physicalIcb;
ULONG i;
ULONG length;
UCHAR status;
//
// Check to see if adapter present in system.
//
if (!AdapterPresent(deviceExtension, ConfigInfo, Context)) {
DebugPrint((1,"Wd7000EX: SCSI adapter not present\n"));
*Again = FALSE;
return SP_RETURN_NOT_FOUND;
}
//
// There is still more to look at.
//
*Again = FALSE;
//
// Fill in the access array information only if there are no
// default parameters already there.
//
if (ScsiPortConvertPhysicalAddressToUlong(
(*ConfigInfo->AccessRanges)[0].RangeStart) == 0) {
*Again = TRUE;
(*ConfigInfo->AccessRanges)[0].RangeStart =
ScsiPortConvertUlongToPhysicalAddress(0x1000 * (*((PULONG) Context)) + EISA_ADDRESS_BASE);
(*ConfigInfo->AccessRanges)[0].RangeLength = sizeof(EISA_CONTROLLER);
(*ConfigInfo->AccessRanges)[0].RangeInMemory = FALSE;
//
// Indicate maximum transfer length in bytes.
//
ConfigInfo->MaximumTransferLength = MAXIMUM_TRANSFER_SIZE;
//
// Maximum number of physical segments is 32.
//
ConfigInfo->NumberOfPhysicalBreaks = MAXIMUM_SDL_SIZE;
//
// Set the configuration parameters for this card.
//
ConfigInfo->NumberOfBuses = 1;
deviceExtension->NumberOfBuses = 1;
ConfigInfo->ScatterGather = TRUE;
ConfigInfo->Master = TRUE;
//
// Get a noncached extension for an adapter inquiry command.
//
ncExtension = ScsiPortGetUncachedExtension(
deviceExtension,
ConfigInfo,
sizeof(NONCACHED_EXTENSION));
if (ncExtension == NULL) {
//
// Log error.
//
ScsiPortLogError(
deviceExtension,
NULL,
0,
0,
0,
SP_INTERNAL_ADAPTER_ERROR,
6 << 16
);
return SP_RETURN_ERROR;
}
length = sizeof(NONCACHED_EXTENSION);
//
// Convert virtual to physical address.
//
physicalIcb = ScsiPortConvertPhysicalAddressToUlong(
ScsiPortGetPhysicalAddress(deviceExtension,
NULL,
ncExtension,
&length));
//
// Initialize the pointers.
//
icb = &ncExtension->Icb;
adapterInquiry = &ncExtension->AdapterInquiry;
//
// Create ICB for Adapter Inquiry Command.
//
icb->IcbFlags = 0;
icb->CompletionStatus = 0;
icb->Reserved = 0;
icb->DataBufferAddress = ScsiPortConvertPhysicalAddressToUlong(
ScsiPortGetPhysicalAddress(
deviceExtension,
NULL,
adapterInquiry,
&length));
icb->TransferCount = sizeof(ADAPTER_INQUIRY);
icb->OpCode = ADAPTER_INQUIRY_COMMAND;
//
// Get ICB physical address.
//
physicalIcb = ScsiPortConvertPhysicalAddressToUlong(
ScsiPortGetPhysicalAddress(
deviceExtension,
NULL,
icb,
&length));
//
// Disable system interrupts.
//
ScsiPortWritePortUchar(&deviceExtension->EisaController->SystemInterruptEnable,
SYSTEM_INTERRUPTS_DISABLE);
//
// Write ICB physical address and command to mailbox.
//
SendCommand(PROCESS_ICB,
physicalIcb,
deviceExtension);
//
// Poll for ICB completion.
//
i = 0;
while ((status =
ScsiPortReadPortUchar(
&deviceExtension->EisaController->ResponseRegister)) == 0) {
i++;
if (i > 100000) {
break;
}
ScsiPortStallExecution(10);
}
if (status == 0) {
//
// The request timed out. Log an error and return.
//
ScsiPortLogError(
deviceExtension,
NULL,
0,
0,
0,
SP_INTERNAL_ADAPTER_ERROR,
7 << 16
);
return SP_RETURN_ERROR;
}
DebugPrint((1, "Wd7000ExFindAdapter: Get configuration request time = %d.\n", i * 10));
//
// Acknowledge interrupt.
//
ScsiPortWritePortUchar(&deviceExtension->EisaController->ResponseRegister, 0xFF);
//
// Enable system interrupts.
//
ScsiPortWritePortUchar(&deviceExtension->EisaController->SystemInterruptEnable,
SYSTEM_INTERRUPTS_ENABLE);
//
// Check returned status for success.
//
if (status != COMPLETE_SUCCESS) {
//
// Give up.
//
DebugPrint((1,"Wd7000Ex: Response register %x\n", status));
DebugPrint((1,"Wd7000Ex: Adapter inquiry failed\n"));
//
// Log error.
//
ScsiPortLogError(
deviceExtension,
NULL,
0,
0,
0,
SP_INTERNAL_ADAPTER_ERROR,
8 << 16
);
return SP_RETURN_ERROR;
}
//
// NOTE: Delay here. I don't understand this latency between
// when the device interrupts and the status of the ICB
// is success and when the data is actually available in
// the buffer.
//
ScsiPortStallExecution(300);
if (adapterInquiry->AdapterInformation & DUAL_CHANNEL) {
//
// There are two buses on the adapter.
//
ConfigInfo->InitiatorBusId[1] =
(adapterInquiry->ChannelInformation >> 4) & BUS_ID_MASK;
ConfigInfo->NumberOfBuses = 2;
deviceExtension->NumberOfBuses = 2;
}
BOOLEAN
AdapterPresent(
IN PVOID HwDeviceExtension,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
IN OUT PULONG AdapterCount
)
/*++
Routine Description:
Determine if WD7000EX SCSI adapter is installed in system
by reading the EISA board configuration registers for each
EISA slot looking for the correct signature.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
ConfigInfo - Supplies the configuration information stucture. If an
adapter is found the access range is update.
AdapterCount - Supplies the count of slots which have already been checked.
Return Value:
TRUE if adapter present.
--*/
{
PHW_DEVICE_EXTENSION deviceExtension = HwDeviceExtension;
ULONG eisaSlotNumber;
PEISA_CONTROLLER eisaController;
//
// Check to see if adapter present in system.
//
for (eisaSlotNumber=*AdapterCount + 1; eisaSlotNumber<MAXIMUM_EISA_SLOTS; eisaSlotNumber++) {
//
// Update the adapter count.
//
(*AdapterCount)++;
//
// Get the system address for this card. The card uses I/O space.
// If ConfigInfo already has default information about this
// controller, use it. If not, then we derive our own. This
// is for Chicago compatibility.
//
if (ScsiPortConvertPhysicalAddressToUlong(
(*ConfigInfo->AccessRanges)[0].RangeStart) != 0) {
eisaController = ScsiPortGetDeviceBase(
deviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
(*ConfigInfo->AccessRanges)[0].RangeStart,
(*ConfigInfo->AccessRanges)[0].RangeLength,
(BOOLEAN) !((*ConfigInfo->AccessRanges)[0].RangeInMemory));
} else {
eisaController = ScsiPortGetDeviceBase(
deviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
ScsiPortConvertUlongToPhysicalAddress(0x1000 * eisaSlotNumber),
0x1000,
TRUE);
}
eisaController =
(PEISA_CONTROLLER)((PUCHAR)eisaController + EISA_ADDRESS_BASE);
if ((ScsiPortReadPortUchar(&eisaController->BoardId[0]) == 0x5C) &&
(ScsiPortReadPortUchar(&eisaController->BoardId[1]) == 0x83) &&
(ScsiPortReadPortUchar(&eisaController->BoardId[2]) == 0x20)) {
deviceExtension->EisaController = eisaController;
return TRUE;
}
//
// The card is not here so clean up.
//
ScsiPortFreeDeviceBase(deviceExtension,
(PUCHAR)eisaController - EISA_ADDRESS_BASE);
} // end for (eisaSlotNumber ...
//
// Clear the adapter count for the next bus.
//
*AdapterCount = 0;
return FALSE;
} // end AdapterPresent()