BOOLEAN
MpHwStartIo(
__in pHW_HBA_EXT pHBAExt, // Adapter device-object extension from port driver.
__in __out PSCSI_REQUEST_BLOCK pSrb
)
{
UCHAR Result = ResultDone;
#ifdef USE_SCSIPORT
UCHAR PathId = pSrb->PathId;
UCHAR TargetId = pSrb->TargetId;
UCHAR Lun = pSrb->Lun;
#endif
KdPrint2(("PhDskMnt::MpHwStartIo: pHBAExt = 0x%p, pSrb = 0x%p, Path=%i, Target=%i, Lun=%i, IRQL=%i\n",
pHBAExt,
pSrb,
(int) pSrb->PathId,
(int) pSrb->TargetId,
(int) pSrb->Lun,
KeGetCurrentIrql()));
pSrb->SrbStatus = SRB_STATUS_PENDING;
pSrb->ScsiStatus = SCSISTAT_GOOD;
ImScsiCompletePendingSrbs(pHBAExt);
_InterlockedExchangeAdd((volatile LONG *)&pHBAExt->SRBsSeen, 1); // Bump count of SRBs encountered.
// Next, if true, will cause port driver to remove the associated LUNs if, for example, devmgmt.msc is asked "scan for hardware changes."
//if (pHBAExt->bDontReport)
//{ // Act as though the HBA/path is gone?
// pSrb->SrbStatus = SRB_STATUS_INVALID_LUN;
// goto done;
//}
switch (pSrb->Function)
{
case SRB_FUNCTION_IO_CONTROL:
ScsiIoControl(pHBAExt, pSrb, &Result);
break;
case SRB_FUNCTION_EXECUTE_SCSI:
ScsiExecute(pHBAExt, pSrb, &Result);
break;
case SRB_FUNCTION_RESET_LOGICAL_UNIT:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_LOGICAL_UNIT.\n");
pSrb->SrbStatus = ScsiResetLun(pHBAExt, pSrb);
break;
case SRB_FUNCTION_RESET_DEVICE:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_DEVICE.\n");
pSrb->SrbStatus = ScsiResetDevice(pHBAExt, pSrb);
break;
case SRB_FUNCTION_RESET_BUS:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_BUS.\n");
pSrb->SrbStatus = MpHwResetBus(pHBAExt, pSrb->PathId);
break;
case SRB_FUNCTION_PNP:
MpHwHandlePnP(pHBAExt, (PSCSI_PNP_REQUEST_BLOCK)pSrb);
break;
case SRB_FUNCTION_POWER:
KdPrint(("PhDskMnt::MpHwStartIo: SRB_FUNCTION_POWER.\n"));
// Do nothing.
pSrb->SrbStatus = SRB_STATUS_SUCCESS;
break;
case SRB_FUNCTION_SHUTDOWN:
KdPrint(("PhDskMnt::MpHwStartIo: SRB_FUNCTION_SHUTDOWN.\n"));
// Do nothing.
pSrb->SrbStatus = SRB_STATUS_SUCCESS;
break;
default:
KdPrint(("PhDskMnt::MpHwStartIo: Unknown pSrb Function = 0x%x\n", pSrb->Function));
ScsiSetCheckCondition(pSrb, SRB_STATUS_ERROR, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ADSENSE_ILLEGAL_COMMAND, 0);
break;
} // switch (pSrb->Function)
if (Result == ResultDone)
{ // Complete now?
// Note: A miniport with real hardware would not always be calling RequestComplete from HwScsiStartIo. Rather,
// the miniport would typically be doing real I/O and would call RequestComplete only at the end of that
// real I/O, in its HwScsiInterrupt or in a DPC routine.
#ifdef USE_SCSIPORT
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestComplete', 'NextRequest' and 'NextLuRequest' to ScsiPort.\n"));
ScsiPortNotification(RequestComplete, pHBAExt, pSrb);
ScsiPortNotification(NextRequest, pHBAExt);
ScsiPortNotification(NextLuRequest, pHBAExt, 0, 0, 0);
#endif
#ifdef USE_STORPORT
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestComplete' to port StorPort.\n"));
StorPortNotification(RequestComplete, pHBAExt, pSrb);
#endif
}
else
{
#ifdef USE_SCSIPORT
_InterlockedExchangeAdd((volatile LONG*)&pHBAExt->WorkItems, 1);
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestTimerCall' and 'NextLuRequest' to ScsiPort.\n"));
ScsiPortNotification(RequestTimerCall, pHBAExt, MpHwTimer, (ULONG) 1);
ScsiPortNotification(NextLuRequest, pHBAExt, PathId, TargetId, Lun);
ScsiPortNotification(NextLuRequest, pHBAExt, 0, 0, 0);
#endif
}
KdPrint2(("PhDskMnt::MpHwStartIo End.\n"));
return TRUE;
} // End MpHwStartIo().
BOOLEAN
MpHwStartIo(
__in PVOID DeviceExtension, // Adapter device-object extension from port driver.
__inout __deref PSCSI_REQUEST_BLOCK pSrb
)
{
KIRQL lowest_assumed_irql = PASSIVE_LEVEL;
ResultType Result = ResultDone;
pHW_HBA_EXT pHBAExt = (pHW_HBA_EXT)DeviceExtension;
#ifdef USE_SCSIPORT
UCHAR PathId = pSrb->PathId;
UCHAR TargetId = pSrb->TargetId;
UCHAR Lun = pSrb->Lun;
#endif
KdPrint2(("PhDskMnt::MpHwStartIo: pHBAExt = 0x%p, pSrb = 0x%p, Path=%i, Target=%i, Lun=%i, IRQL=%i\n",
pHBAExt,
pSrb,
(int)pSrb->PathId,
(int)pSrb->TargetId,
(int)pSrb->Lun,
KeGetCurrentIrql()));
pSrb->SrbStatus = SRB_STATUS_PENDING;
pSrb->ScsiStatus = SCSISTAT_GOOD;
ImScsiCompletePendingSrbs(pHBAExt, &lowest_assumed_irql);
_InterlockedExchangeAdd((volatile LONG *)&pHBAExt->SRBsSeen, 1); // Bump count of SRBs encountered.
// Next, if true, will cause port driver to remove the associated LUNs if, for example, devmgmt.msc is asked "scan for hardware changes."
//if (pHBAExt->bDontReport)
//{ // Act as though the HBA/path is gone?
// pSrb->SrbStatus = SRB_STATUS_NO_DEVICE;
// goto done;
//}
switch (pSrb->Function)
{
case SRB_FUNCTION_IO_CONTROL:
ScsiIoControl(pHBAExt, pSrb, &Result, &lowest_assumed_irql);
break;
case SRB_FUNCTION_EXECUTE_SCSI:
if (pSrb->Cdb[0] == SCSIOP_REPORT_LUNS)
{
ScsiOpReportLuns(pHBAExt, pSrb, &lowest_assumed_irql);
}
else
{
ScsiExecute(pHBAExt, pSrb, &Result, &lowest_assumed_irql);
}
break;
case SRB_FUNCTION_RESET_LOGICAL_UNIT:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_LOGICAL_UNIT.\n");
pSrb->SrbStatus = ScsiResetLun(pHBAExt, pSrb);
break;
case SRB_FUNCTION_RESET_DEVICE:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_DEVICE.\n");
pSrb->SrbStatus = ScsiResetDevice(pHBAExt, pSrb);
break;
case SRB_FUNCTION_RESET_BUS:
DbgPrint("PhDskMnt::MpHwStartIo: SRB_FUNCTION_RESET_BUS.\n");
pSrb->SrbStatus = MpHwResetBus(pHBAExt, pSrb->PathId);
break;
case SRB_FUNCTION_PNP:
ScsiPnP(pHBAExt, (PSCSI_PNP_REQUEST_BLOCK)pSrb, &lowest_assumed_irql);
break;
case SRB_FUNCTION_POWER:
KdPrint(("PhDskMnt::MpHwStartIo: SRB_FUNCTION_POWER.\n"));
// Do nothing.
pSrb->SrbStatus = SRB_STATUS_SUCCESS;
break;
case SRB_FUNCTION_SHUTDOWN:
KdPrint(("PhDskMnt::MpHwStartIo: SRB_FUNCTION_SHUTDOWN.\n"));
// Do nothing.
pSrb->SrbStatus = SRB_STATUS_SUCCESS;
break;
default:
KdPrint(("PhDskMnt::MpHwStartIo: Unknown pSrb Function = 0x%X\n", pSrb->Function));
//StorPortLogError(pHBAExt, pSrb, pSrb->PathId, pSrb->TargetId, pSrb->Lun, SP_PROTOCOL_ERROR, 0x0200 | pSrb->Cdb[0]);
ScsiSetCheckCondition(pSrb, SRB_STATUS_ERROR, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ADSENSE_ILLEGAL_COMMAND, 0);
break;
} // switch (pSrb->Function)
if (Result == ResultDone)
{ // Complete now?
#ifdef USE_SCSIPORT
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestComplete', 'NextRequest' and 'NextLuRequest' to ScsiPort.\n"));
ScsiPortNotification(RequestComplete, pHBAExt, pSrb);
ScsiPortNotification(NextRequest, pHBAExt);
ScsiPortNotification(NextLuRequest, pHBAExt, 0, 0, 0);
#endif
#ifdef USE_STORPORT
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestComplete' to port StorPort.\n"));
StorPortNotification(RequestComplete, pHBAExt, pSrb);
#endif
}
else
{
#ifdef USE_SCSIPORT
_InterlockedExchangeAdd((volatile LONG*)&pHBAExt->WorkItems, 1);
KdPrint2(("PhDskMnt::MpHwStartIo sending 'RequestTimerCall' and 'NextLuRequest' to ScsiPort.\n"));
ScsiPortNotification(RequestTimerCall, pHBAExt, MpHwTimer, (ULONG)1);
ScsiPortNotification(NextLuRequest, pHBAExt, PathId, TargetId, Lun);
ScsiPortNotification(NextLuRequest, pHBAExt, 0, 0, 0);
#endif
}
KdPrint2(("PhDskMnt::MpHwStartIo End.\n"));
return TRUE;
} // End MpHwStartIo().