//
// Complete a Ccb
//
VOID
LSCcbPostCompleteCcb(
IN PCCB Ccb
) {
PKEVENT event;
ASSERT(Ccb->Type == LSSTRUC_TYPE_CCB);
ASSERT(Ccb->Length == sizeof(CCB));
ASSERT(LSCcbIsStatusFlagOn(Ccb,CCBSTATUS_FLAG_COMPLETED));
ASSERT(Ccb->AssociateCount == 0);
ASSERT(Ccb->CcbCurrentStackLocationIndex <= NR_MAX_CCB_STACKLOCATION);
ASSERT(Ccb->CcbCurrentStackLocation == &Ccb->CcbStackLocation[Ccb->CcbCurrentStackLocationIndex]);
if(LSCcbIsStatusFlagOn(Ccb,CCBSTATUS_FLAG_POST_COMPLETED)) {
ASSERT(FALSE);
return;
}
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_POST_COMPLETED);
event = Ccb->CompletionEvent;
if(LSCcbIsFlagOn(Ccb, CCB_FLAG_DATABUF_ALLOCATED) && Ccb->DataBuffer && Ccb->DataBufferLength) {
ASSERT(LSCcbIsFlagOn(Ccb, CCB_FLAG_ALLOCATED));
KDPrintM(DBG_CCB_INFO, ("Freeing Ccb->DataBuffer=%p.\n", Ccb->DataBuffer));
ExFreePool(Ccb->DataBuffer);
}
if(LSCcbIsFlagOn(Ccb, CCB_FLAG_ALLOCATED)) {
KDPrintM(DBG_CCB_TRACE, ("Freeing Ccb=%p.\n", Ccb));
LSCcbFree(Ccb);
}
// You must not use any data in Ccb after KeSetEvent
// because caller will free Ccb after event received
if(event) {
KeSetEvent(event, IO_DISK_INCREMENT, FALSE);
}
}
//
// Complete a Ccb
//
// We can set the CCBSTATUS_FLAG_COMPLETED flag only in this function
//
VOID
LSCcbCompleteCcb(
IN PCCB Ccb
) {
LONG idx_sl;
NTSTATUS status;
ASSERT(Ccb->Type == LSSTRUC_TYPE_CCB);
ASSERT(Ccb->Length == sizeof(CCB));
ASSERT(!LSCcbIsStatusFlagOn(Ccb,CCBSTATUS_FLAG_COMPLETED));
ASSERT(Ccb->AssociateCount == 0);
ASSERT(Ccb->CcbCurrentStackLocationIndex < NR_MAX_CCB_STACKLOCATION);
ASSERT(Ccb->CcbCurrentStackLocation == &Ccb->CcbStackLocation[Ccb->CcbCurrentStackLocationIndex]);
KDPrintM(DBG_CCB_TRACE, ("entered with Ccb:%p\n", Ccb));
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_COMPLETED);
LSCcbResetStatusFlag(Ccb, CCBSTATUS_FLAG_PENDING);
Ccb->CcbCurrentStackLocationIndex++;
Ccb->CcbCurrentStackLocation++;
//
// Call completion routines in order.
//
for( idx_sl = Ccb->CcbCurrentStackLocationIndex;
idx_sl < NR_MAX_CCB_STACKLOCATION;
idx_sl++, Ccb->CcbCurrentStackLocation++, Ccb->CcbCurrentStackLocationIndex++ ) {
ASSERT(Ccb->CcbCurrentStackLocation <= &Ccb->CcbStackLocation[NR_MAX_CCB_STACKLOCATION - 1]);
if(Ccb->CcbCurrentStackLocation->CcbCompletionRoutine) {
status = Ccb->CcbCurrentStackLocation->CcbCompletionRoutine(Ccb, Ccb->CcbCurrentStackLocation->CcbCompletionContext);
if(status == STATUS_MORE_PROCESSING_REQUIRED) {
KDPrintM(DBG_CCB_TRACE, ("Ccb=%p, more processing required.\n", Ccb));
return;
}
KDPrintM(DBG_CCB_TRACE, ("Ccb=%p, completion complete.\n", Ccb));
}
}
//
// Do post operation
//
LSCcbPostCompleteCcb(Ccb);
}
NTSTATUS
LanscsiMiniportCompletion(
IN PCCB Ccb,
IN PMINIPORT_DEVICE_EXTENSION HwDeviceExtension
)
{
KIRQL oldIrql;
static LONG SrbSeq;
LONG srbSeqIncremented;
PSCSI_REQUEST_BLOCK srb;
PCCB abortCcb;
NTSTATUS return_status;
KDPrint(3,("RequestExecuting = %d\n", HwDeviceExtension->RequestExecuting));
srb = Ccb->Srb;
if(!srb) {
KDPrint(1,("Ccb:%p CcbStatus %d. No srb assigned.\n", Ccb, Ccb->CcbStatus));
ASSERT(srb);
return STATUS_SUCCESS;
}
//
// LanscsiMiniport completion routine will do post operation to complete CCBs.
//
return_status = STATUS_MORE_PROCESSING_REQUIRED;
srbSeqIncremented = InterlockedIncrement(&SrbSeq);
//
// check to see if this CCB was sent before BusReset occurs.
// TODO: we need to calculate the accurate BUSRESET_EFFECT_TICKCOUNT.
//
ASSERT(Ccb->CreateTime.QuadPart);
KDPrint(3,("!!!!! SRB:%p CCB:%p CCB->CreateTime: %I64u!!!!!!\n", srb, Ccb, Ccb->CreateTime.QuadPart));
ACQUIRE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, &oldIrql);
if( Ccb->CreateTime.QuadPart <= HwDeviceExtension->LastBusResetTime.QuadPart + BUSRESET_EFFECT_TICKCOUNT ||
ADAPTER_ISSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_BUSRESET_PENDING) )
{
ADAPTER_RESETSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_BUSRESET_PENDING);
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
KDPrint(1,("!!!!!! BusReset occured after this CCB has entered."
" Make it completed with Timer. CCB->CreateTime: %I64u!!!!!!\n", Ccb->CreateTime.QuadPart));
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_TIMER_COMPLETE);
} else {
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
}
//
// Check reconnecting process.
// Translate CCB to SRB.
//
if(LSCcbIsStatusFlagOn(Ccb, CCBSTATUS_FLAG_RECONNECTING)) {
ACQUIRE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, &oldIrql);
if(!ADAPTER_ISSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_RECONNECTPENDING)) {
UINT32 AdapterStatus;
AdapterStatus = ADAPTER_SETSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_RECONNECTPENDING);
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
UpdatePdoInfoInLSBus(HwDeviceExtension, AdapterStatus);
KDPrint(1,("Ccb:%p CcbStatus %d. Start reconnecting\n", Ccb, Ccb->CcbStatus));
} else {
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
}
} else {
//
// If CCbStatus != CCB_STATUS_STOP, reconnecting is successful.
//
if(Ccb->CcbStatus != CCB_STATUS_STOP) {
ACQUIRE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, &oldIrql);
if(ADAPTER_ISSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_RECONNECTPENDING)) {
UINT32 AdapterStatus;
AdapterStatus = ADAPTER_RESETSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_RECONNECTPENDING);
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
UpdatePdoInfoInLSBus(HwDeviceExtension, AdapterStatus);
KDPrint(1,("Ccb:%p CcbStatus %d. Finish reconnecting\n", Ccb, Ccb->CcbStatus));
} else {
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
}
}
}
//
// If CCB_OPCODE_UPDATE is successful, update adapter status in LanscsiBus
//
if(Ccb->OperationCode == CCB_OPCODE_UPDATE && Ccb->CcbStatus == CCB_STATUS_SUCCESS) {
UINT32 AdapterStatus;
ACQUIRE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, &oldIrql);
AdapterStatus = HwDeviceExtension->AdapterStatus;
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
UpdatePdoInfoInLSBus(HwDeviceExtension, AdapterStatus);
}
KDPrint(3,("CcbStatus %d\n", Ccb->CcbStatus));
//
// Translate CcbStatus to SrbStatus
//
switch(Ccb->CcbStatus) {
case CCB_STATUS_SUCCESS:
srb->SrbStatus = SRB_STATUS_SUCCESS;
srb->ScsiStatus = SCSISTAT_GOOD;
//
// Check to see if the associate member is in error.
//
if(LSCcbIsStatusFlagOn(Ccb, CCBSTATUS_FLAG_LURN_STOP)) {
ACQUIRE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, &oldIrql);
if(!ADAPTER_ISSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_MEMBER_FAULT)) {
UINT32 AdapterStatus;
AdapterStatus = ADAPTER_SETSTATUSFLAG(HwDeviceExtension, ADAPTER_STATUSFLAG_MEMBER_FAULT);
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
UpdatePdoInfoInLSBus(HwDeviceExtension, AdapterStatus);
KDPrint(1,("Ccb:%p CcbStatus %d. Associate member is in error.\n", Ccb, Ccb->CcbStatus));
//
// Send DisconEvent to the service.
// TODO: alternate to AlarmEvent.
//
KeSetEvent(HwDeviceExtension->DisconEventToService, IO_NO_INCREMENT, FALSE);
} else {
RELEASE_SPIN_LOCK(&HwDeviceExtension->LanscsiAdapterSpinLock, oldIrql);
}
}
break;
case CCB_STATUS_NOT_EXIST:
srb->SrbStatus = SRB_STATUS_NO_DEVICE;
srb->ScsiStatus = SCSISTAT_GOOD;
break;
case CCB_STATUS_INVALID_COMMAND:
srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
srb->ScsiStatus = SCSISTAT_GOOD;
break;
case CCB_STATUS_COMMAND_FAILED:
srb->SrbStatus = SRB_STATUS_ERROR | SRB_STATUS_AUTOSENSE_VALID;
srb->ScsiStatus = SCSISTAT_CHECK_CONDITION;
srb->DataTransferLength -= Ccb->ResidualDataLength;
break;
// Added by ILGU HONG 2004_07_05
case CCB_STATUS_COMMMAND_DONE_SENSE:
srb->SrbStatus = SRB_STATUS_ERROR | SRB_STATUS_AUTOSENSE_VALID ;
srb->DataTransferLength = 0;
srb->ScsiStatus = SCSISTAT_GOOD;
break;
// Added by ILGU HONG 2004_07_05 end
case CCB_STATUS_RESET:
srb->SrbStatus = SRB_STATUS_BUS_RESET;
srb->ScsiStatus = SCSISTAT_GOOD;
break;
case CCB_STATUS_COMMUNICATION_ERROR:
{
PSENSE_DATA senseData;
srb->SrbStatus = SRB_STATUS_ERROR | SRB_STATUS_AUTOSENSE_VALID;
srb->ScsiStatus = SCSISTAT_CHECK_CONDITION;
srb->DataTransferLength = 0;
senseData = srb->SenseInfoBuffer;
senseData->ErrorCode = 0x70;
senseData->Valid = 1;
//senseData->SegmentNumber = 0;
senseData->SenseKey = SCSI_SENSE_HARDWARE_ERROR; //SCSI_SENSE_MISCOMPARE;
//senseData->IncorrectLength = 0;
//senseData->EndOfMedia = 0;
//senseData->FileMark = 0;
senseData->AdditionalSenseLength = 0xb;
senseData->AdditionalSenseCode = SCSI_ADSENSE_NO_SENSE;
senseData->AdditionalSenseCodeQualifier = 0;
}
break;
case CCB_STATUS_BUSY:
srb->SrbStatus = SRB_STATUS_BUSY;
srb->ScsiStatus = SCSISTAT_GOOD;
KDPrint(1,("CCB_STATUS_BUSY\n"));
break;
//
// Stop one LUR
//
case CCB_STATUS_STOP: {
KDPrint(1,("CCB_STATUS_STOP. Stopping!\n"));
srb->SrbStatus = SRB_STATUS_NO_DEVICE;
srb->ScsiStatus = SCSISTAT_GOOD;
MiniStopAdapter(HwDeviceExtension, TRUE);
break;
}
default:
// Error in Connection...
// CCB_STATUS_UNKNOWN_STATUS, CCB_STATUS_RESET, and so on.
srb->SrbStatus = SRB_STATUS_ERROR;
srb->ScsiStatus = SCSISTAT_GOOD;
}
//
// Process Abort CCB.
//
abortCcb = Ccb->AbortCcb;
if(abortCcb != NULL) {
KDPrint(1,("abortSrb\n"));
ASSERT(FALSE);
srb->SrbStatus = SRB_STATUS_SUCCESS;
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_TIMER_COMPLETE);
InitializeListHead(&Ccb->ListEntry);
ExInterlockedInsertTailList(
&HwDeviceExtension->CcbCompletionList,
&Ccb->ListEntry,
&HwDeviceExtension->CcbCompletionListSpinLock
);
((PSCSI_REQUEST_BLOCK)abortCcb->Srb)->SrbStatus = SRB_STATUS_ABORTED;
LSCcbSetStatusFlag(abortCcb, CCBSTATUS_FLAG_TIMER_COMPLETE);
InitializeListHead(&abortCcb->ListEntry);
ExInterlockedInsertTailList(
&HwDeviceExtension->CcbCompletionList,
&abortCcb->ListEntry,
&HwDeviceExtension->CcbCompletionListSpinLock
);
} else {
//
// Make Complete IRP and Send it.
//
//
// In case of HostStatus == CCB_STATUS_SUCCESS_TIMER, CCB will go to the timer to complete.
//
if( (Ccb->CcbStatus == CCB_STATUS_SUCCESS || Ccb->CcbStatus == CCB_STATUS_INVALID_COMMAND) &&
!LSCcbIsStatusFlagOn(Ccb, CCBSTATUS_FLAG_TIMER_COMPLETE) &&
!LSCcbIsStatusFlagOn(Ccb, CCBSTATUS_FLAG_BUSRESET_REQUIRED)
)
{
PDEVICE_OBJECT pDeviceObject = HwDeviceExtension->ScsiportFdoObject;
PIRP pCompletionIrp = NULL;
PIO_STACK_LOCATION pIoStack;
NTSTATUS ntStatus;
PSCSI_REQUEST_BLOCK completionSrb = NULL;
PCOMPLETION_DATA completionData = NULL;
completionSrb = ExAllocatePoolWithTag(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK), LSMP_PTAG_SRB);
if(completionSrb == NULL)
goto Out;
RtlZeroMemory(
completionSrb,
sizeof(SCSI_REQUEST_BLOCK)
);
// Build New IRP.
pCompletionIrp = IoAllocateIrp((CCHAR)(pDeviceObject->StackSize + 1), FALSE);
if(pCompletionIrp == NULL) {
ExFreePoolWithTag(completionSrb, LSMP_PTAG_SRB);
goto Out;
}
completionData = ExAllocatePoolWithTag(NonPagedPool, sizeof(COMPLETION_DATA), LSMP_PTAG_CMPDATA);
if(completionData == NULL) {
ExFreePoolWithTag(completionSrb, LSMP_PTAG_SRB);
IoFreeIrp(pCompletionIrp);
pCompletionIrp = NULL;
goto Out;
}
pCompletionIrp->MdlAddress = NULL;
// Set IRP stack location.
pIoStack = IoGetNextIrpStackLocation(pCompletionIrp);
pIoStack->DeviceObject = pDeviceObject;
pIoStack->MajorFunction = IRP_MJ_SCSI;
pIoStack->Parameters.DeviceIoControl.InputBufferLength = 0;
pIoStack->Parameters.DeviceIoControl.OutputBufferLength = 0;
pIoStack->Parameters.Scsi.Srb = completionSrb;
// Set SRB.
completionSrb->Length = sizeof(SCSI_REQUEST_BLOCK);
completionSrb->Function = SRB_FUNCTION_EXECUTE_SCSI;
completionSrb->PathId = srb->PathId;
completionSrb->TargetId = srb->TargetId;
completionSrb->Lun = srb->Lun;
completionSrb->QueueAction = SRB_SIMPLE_TAG_REQUEST;
completionSrb->DataBuffer = srb;
completionSrb->SrbFlags |= SRB_FLAGS_BYPASS_FROZEN_QUEUE | SRB_FLAGS_NO_QUEUE_FREEZE;
completionSrb->OriginalRequest = pCompletionIrp;
completionSrb->CdbLength = MAXIMUM_CDB_SIZE;
completionSrb->Cdb[0] = SCSIOP_COMPLETE;
completionSrb->Cdb[1] = (UCHAR)srbSeqIncremented;
completionSrb->TimeOutValue = 20;
completionSrb->SrbStatus = SRB_STATUS_SUCCESS;
//
// Set compeltion data for the completion IRP.
//
completionData->HwDeviceExtension = HwDeviceExtension;
completionData->CompletionSrb = completionSrb;
completionData->ShippedCcb = Ccb;
completionData->ShippedCcbAllocatedFromPool = LSCcbIsFlagOn(Ccb, CCB_FLAG_ALLOCATED);
Out:
KDPrint(4,("Before Completion\n"));
if(pCompletionIrp) {
IoSetCompletionRoutine(pCompletionIrp, CompletionIrpCompletionRoutine, completionData, TRUE, TRUE, TRUE);
ASSERT(HwDeviceExtension->RequestExecuting != 0);
//
// call Scsiport FDO.
//
ntStatus = IoCallDriver(pDeviceObject, pCompletionIrp);
ASSERT(NT_SUCCESS(ntStatus));
#if DBG
if(ntStatus!= STATUS_SUCCESS && ntStatus!= STATUS_PENDING) {
KDPrint(1,("ntStatus = 0x%x\n", ntStatus));
}
#endif
}else {
KDPrint(1,("CompletionIRP NULL. CCB(%p) and SRB(%p) is going to the timer. CcbStatus:%x CcbFlag:%x\n", Ccb, Ccb->Srb, Ccb->CcbStatus, Ccb->Flags));
InitializeListHead(&Ccb->ListEntry);
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_TIMER_COMPLETE);
ExInterlockedInsertTailList(
&HwDeviceExtension->CcbCompletionList,
&Ccb->ListEntry,
&HwDeviceExtension->CcbCompletionListSpinLock
);
}
} else {
KDPrint(1,("CCB(%p) and SRB(%p) is going to the timer. CcbStatus:%x CcbFlag:%x\n", Ccb, Ccb->Srb, Ccb->CcbStatus, Ccb->Flags));
InitializeListHead(&Ccb->ListEntry);
LSCcbSetStatusFlag(Ccb, CCBSTATUS_FLAG_TIMER_COMPLETE);
ExInterlockedInsertTailList(
&HwDeviceExtension->CcbCompletionList,
&Ccb->ListEntry,
&HwDeviceExtension->CcbCompletionListSpinLock
);
}
}
return return_status;
}
VOID
MiniTimer(
IN PMINIPORT_DEVICE_EXTENSION HwDeviceExtension
)
{
BOOLEAN BusChanged;
MiniCounter ++;
BusChanged = FALSE;
do {
PLIST_ENTRY listEntry;
PCCB ccb;
PSCSI_REQUEST_BLOCK srb;
// Get Completed CCB
listEntry = ExInterlockedRemoveHeadList(
&HwDeviceExtension->CcbCompletionList,
&HwDeviceExtension->CcbCompletionListSpinLock
);
if(listEntry == NULL)
break;
ccb = CONTAINING_RECORD(listEntry, CCB, ListEntry);
srb = ccb->Srb;
ASSERT(srb);
ASSERT(LSCcbIsStatusFlagOn(ccb, CCBSTATUS_FLAG_TIMER_COMPLETE));
KDPrint(1,("completed SRB:%p SCSIOP:%x\n", srb, srb->Cdb[0]));
if(LSCcbIsStatusFlagOn(ccb, CCBSTATUS_FLAG_BUSRESET_REQUIRED)) {
BusChanged = TRUE;
}
//
// Free a CCB
//
LSCcbPostCompleteCcb(ccb);
ScsiPortNotification(
RequestComplete,
HwDeviceExtension,
srb
);
InterlockedDecrement(&HwDeviceExtension->RequestExecuting);
} while(1);
if(BusChanged) {
KDPrint(1,("Bus change detected. RequestExecuting = %d\n", HwDeviceExtension->RequestExecuting));
ScsiPortNotification(
BusChangeDetected,
HwDeviceExtension,
NULL
);
}
if((MiniCounter % 1000) == 0)
KDPrint(4,("RequestExecuting = %d\n", HwDeviceExtension->RequestExecuting));
if(HwDeviceExtension->RequestExecuting != 0) {
ScsiPortNotification(
RequestTimerCall,
HwDeviceExtension,
MiniTimer,
1
);
} else {
HwDeviceExtension->TimerOn = FALSE;
if(ADAPTER_ISSTATUS(HwDeviceExtension,ADAPTER_STATUS_RUNNING))
ScsiPortNotification(
RequestTimerCall,
HwDeviceExtension,
MiniTimer,
1 //1000
);
}
ScsiPortNotification(
NextRequest,
HwDeviceExtension,
NULL
);
return;
}
