3 * Copyright (C) 2001, 2002 ReactOS Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * COPYRIGHT: See COPYING in the top level directory
21 * PROJECT: ReactOS Storage Stack
22 * FILE: drivers/storage/scsiport/scsiport.c
23 * PURPOSE: SCSI port driver
24 * PROGRAMMER: Eric Kohl (ekohl@rz-online.de)
25 * Aleksey Bragin (aleksey reactos org)
28 /* INCLUDES *****************************************************************/
44 #include "scsiport_int.h"
46 ULONG InternalDebugLevel
= 0x00;
48 /* TYPES *********************************************************************/
50 /* GLOBALS *******************************************************************/
53 SpiGetPciConfigData(IN PDRIVER_OBJECT DriverObject
,
54 IN PDEVICE_OBJECT DeviceObject
,
55 IN
struct _HW_INITIALIZATION_DATA
*HwInitializationData
,
56 IN OUT PPORT_CONFIGURATION_INFORMATION PortConfig
,
57 IN PUNICODE_STRING RegistryPath
,
59 IN OUT PPCI_SLOT_NUMBER NextSlotNumber
);
62 ScsiPortCreateClose(IN PDEVICE_OBJECT DeviceObject
,
65 static DRIVER_DISPATCH ScsiPortDispatchScsi
;
67 ScsiPortDispatchScsi(IN PDEVICE_OBJECT DeviceObject
,
71 ScsiPortDeviceControl(IN PDEVICE_OBJECT DeviceObject
,
74 static DRIVER_STARTIO ScsiPortStartIo
;
76 ScsiPortStartIo(IN PDEVICE_OBJECT DeviceObject
,
80 ScsiPortStartPacket(IN OUT PVOID Context
);
84 SpiAdapterControl(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
85 PVOID MapRegisterBase
, PVOID Context
);
87 static PSCSI_PORT_LUN_EXTENSION
88 SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
);
90 static PSCSI_PORT_LUN_EXTENSION
91 SpiGetLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
96 static PSCSI_REQUEST_BLOCK_INFO
97 SpiAllocateSrbStructures(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
98 PSCSI_PORT_LUN_EXTENSION LunExtension
,
99 PSCSI_REQUEST_BLOCK Srb
);
102 SpiSendInquiry (IN PDEVICE_OBJECT DeviceObject
,
103 IN PSCSI_LUN_INFO LunInfo
);
106 SpiScanAdapter (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
);
109 SpiGetInquiryData (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
112 static PSCSI_REQUEST_BLOCK_INFO
113 SpiGetSrbData(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
120 ScsiPortIsr(IN PKINTERRUPT Interrupt
,
121 IN PVOID ServiceContext
);
124 ScsiPortDpcForIsr(IN PKDPC Dpc
,
125 IN PDEVICE_OBJECT DpcDeviceObject
,
127 IN PVOID DpcContext
);
130 ScsiPortIoTimer(PDEVICE_OBJECT DeviceObject
,
135 ScsiPortAllocateAdapterChannel(IN PDEVICE_OBJECT DeviceObject
,
137 IN PVOID MapRegisterBase
,
141 SpiBuildDeviceMap (PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
142 PUNICODE_STRING RegistryPath
);
145 SpiStatusSrbToNt(UCHAR SrbStatus
);
148 SpiSendRequestSense(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
149 IN PSCSI_REQUEST_BLOCK Srb
);
151 static IO_COMPLETION_ROUTINE SpiCompletionRoutine
;
153 SpiCompletionRoutine(PDEVICE_OBJECT DeviceObject
,
159 SpiProcessCompletedRequest(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
160 IN PSCSI_REQUEST_BLOCK_INFO SrbInfo
,
161 OUT PBOOLEAN NeedToCallStartIo
);
164 SpiGetNextRequestFromLun(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
165 IN PSCSI_PORT_LUN_EXTENSION LunExtension
);
168 SpiMiniportTimerDpc(IN
struct _KDPC
*Dpc
,
169 IN PVOID DeviceObject
,
170 IN PVOID SystemArgument1
,
171 IN PVOID SystemArgument2
);
174 SpiCreatePortConfig(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
175 PHW_INITIALIZATION_DATA HwInitData
,
176 PCONFIGURATION_INFO InternalConfigInfo
,
177 PPORT_CONFIGURATION_INFORMATION ConfigInfo
,
181 SpQueryDeviceCallout(IN PVOID Context
,
182 IN PUNICODE_STRING PathName
,
183 IN INTERFACE_TYPE BusType
,
185 IN PKEY_VALUE_FULL_INFORMATION
*BusInformation
,
186 IN CONFIGURATION_TYPE ControllerType
,
187 IN ULONG ControllerNumber
,
188 IN PKEY_VALUE_FULL_INFORMATION
*ControllerInformation
,
189 IN CONFIGURATION_TYPE PeripheralType
,
190 IN ULONG PeripheralNumber
,
191 IN PKEY_VALUE_FULL_INFORMATION
*PeripheralInformation
);
194 SpiParseDeviceInfo(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
196 IN PPORT_CONFIGURATION_INFORMATION ConfigInfo
,
197 IN PCONFIGURATION_INFO InternalConfigInfo
,
201 SpiResourceToConfig(IN PHW_INITIALIZATION_DATA HwInitializationData
,
202 IN PCM_FULL_RESOURCE_DESCRIPTOR ResourceDescriptor
,
203 IN PPORT_CONFIGURATION_INFORMATION PortConfig
);
205 static PCM_RESOURCE_LIST
206 SpiConfigToResource(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
207 PPORT_CONFIGURATION_INFORMATION PortConfig
);
210 SpiCleanupAfterInit(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
);
213 SpiHandleAttachRelease(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
217 SpiAllocateCommonBuffer(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
, ULONG NonCachedSize
);
221 /* FUNCTIONS *****************************************************************/
223 /**********************************************************************
228 * This function initializes the driver.
235 * System allocated Driver Object for this driver.
238 * Name of registry driver service key.
245 DriverEntry(IN PDRIVER_OBJECT DriverObject
,
246 IN PUNICODE_STRING RegistryPath
)
248 DPRINT("ScsiPort Driver %s\n", VERSION
);
249 return(STATUS_SUCCESS
);
253 /**********************************************************************
258 * Prints debugging messages.
265 * Debug level of the given message.
268 * Pointer to printf()-compatible format string.
271 Additional output data (see printf()).
280 ScsiDebugPrint(IN ULONG DebugPrintLevel
,
281 IN PCHAR DebugMessage
,
287 if (DebugPrintLevel
> InternalDebugLevel
)
290 va_start(ap
, DebugMessage
);
291 vsprintf(Buffer
, DebugMessage
, ap
);
297 /* An internal helper function for ScsiPortCompleteRequest */
300 SpiCompleteRequest(IN PVOID HwDeviceExtension
,
301 IN PSCSI_REQUEST_BLOCK_INFO SrbInfo
,
304 PSCSI_REQUEST_BLOCK Srb
;
306 /* Get current SRB */
309 /* Return if there is no SRB or it is not active */
310 if (!Srb
|| !(Srb
->SrbFlags
& SRB_FLAGS_IS_ACTIVE
)) return;
313 Srb
->SrbStatus
= SrbStatus
;
315 /* Set data transfered to 0 */
316 Srb
->DataTransferLength
= 0;
319 ScsiPortNotification(RequestComplete
,
328 ScsiPortCompleteRequest(IN PVOID HwDeviceExtension
,
334 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
335 PSCSI_PORT_LUN_EXTENSION LunExtension
;
336 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
337 PLIST_ENTRY ListEntry
;
341 DPRINT("ScsiPortCompleteRequest() called\n");
343 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
344 SCSI_PORT_DEVICE_EXTENSION
,
345 MiniPortDeviceExtension
);
347 /* Go through all buses */
348 for (BusNumber
= 0; BusNumber
< 8; BusNumber
++)
350 /* Go through all targets */
351 for (Target
= 0; Target
< DeviceExtension
->MaxTargedIds
; Target
++)
353 /* Get logical unit list head */
354 LunExtension
= DeviceExtension
->LunExtensionList
[Target
% 8];
356 /* Go through all logical units */
359 /* Now match what caller asked with what we are at now */
360 if ((PathId
== SP_UNTAGGED
|| PathId
== LunExtension
->PathId
) &&
361 (TargetId
== SP_UNTAGGED
|| TargetId
== LunExtension
->TargetId
) &&
362 (Lun
== SP_UNTAGGED
|| Lun
== LunExtension
->Lun
))
364 /* Yes, that's what caller asked for. Complete abort requests */
365 if (LunExtension
->CompletedAbortRequests
)
367 /* TODO: Save SrbStatus in this request */
368 DPRINT1("Completing abort request without setting SrbStatus!\n");
370 /* Issue a notification request */
371 ScsiPortNotification(RequestComplete
,
373 LunExtension
->CompletedAbortRequests
);
376 /* Complete the request using our helper */
377 SpiCompleteRequest(HwDeviceExtension
,
378 &LunExtension
->SrbInfo
,
381 /* Go through the queue and complete everything there too */
382 ListEntry
= LunExtension
->SrbInfo
.Requests
.Flink
;
383 while (ListEntry
!= &LunExtension
->SrbInfo
.Requests
)
385 /* Get the actual SRB info entry */
386 SrbInfo
= CONTAINING_RECORD(ListEntry
,
387 SCSI_REQUEST_BLOCK_INFO
,
391 SpiCompleteRequest(HwDeviceExtension
,
395 /* Advance to the next request in queue */
396 ListEntry
= SrbInfo
->Requests
.Flink
;
400 /* Advance to the next one */
401 LunExtension
= LunExtension
->Next
;
411 ScsiPortFlushDma(IN PVOID HwDeviceExtension
)
413 DPRINT("ScsiPortFlushDma()\n");
422 ScsiPortFreeDeviceBase(IN PVOID HwDeviceExtension
,
423 IN PVOID MappedAddress
)
425 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
426 PMAPPED_ADDRESS NextMa
, LastMa
;
428 //DPRINT("ScsiPortFreeDeviceBase() called\n");
430 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
431 SCSI_PORT_DEVICE_EXTENSION
,
432 MiniPortDeviceExtension
);
434 /* Initialize our pointers */
435 NextMa
= DeviceExtension
->MappedAddressList
;
440 if (NextMa
->MappedAddress
== MappedAddress
)
443 MmUnmapIoSpace(MappedAddress
, NextMa
->NumberOfBytes
);
445 /* Remove it from the list */
446 if (NextMa
== DeviceExtension
->MappedAddressList
)
448 /* Remove the first entry */
449 DeviceExtension
->MappedAddressList
= NextMa
->NextMappedAddress
;
453 LastMa
->NextMappedAddress
= NextMa
->NextMappedAddress
;
456 /* Free the resources and quit */
464 NextMa
= NextMa
->NextMappedAddress
;
474 ScsiPortGetBusData(IN PVOID DeviceExtension
,
475 IN ULONG BusDataType
,
476 IN ULONG SystemIoBusNumber
,
481 DPRINT("ScsiPortGetBusData()\n");
485 /* If Length is non-zero, just forward the call to
486 HalGetBusData() function */
487 return HalGetBusData(BusDataType
,
494 /* We have a more complex case here */
503 ScsiPortSetBusDataByOffset(IN PVOID DeviceExtension
,
504 IN ULONG BusDataType
,
505 IN ULONG SystemIoBusNumber
,
511 DPRINT("ScsiPortSetBusDataByOffset()\n");
512 return HalSetBusDataByOffset(BusDataType
,
524 ScsiPortGetDeviceBase(IN PVOID HwDeviceExtension
,
525 IN INTERFACE_TYPE BusType
,
526 IN ULONG SystemIoBusNumber
,
527 IN SCSI_PHYSICAL_ADDRESS IoAddress
,
528 IN ULONG NumberOfBytes
,
529 IN BOOLEAN InIoSpace
)
531 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
532 PHYSICAL_ADDRESS TranslatedAddress
;
533 PMAPPED_ADDRESS DeviceBase
;
537 //DPRINT ("ScsiPortGetDeviceBase() called\n");
539 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
540 SCSI_PORT_DEVICE_EXTENSION
,
541 MiniPortDeviceExtension
);
543 AddressSpace
= (ULONG
)InIoSpace
;
544 if (HalTranslateBusAddress(BusType
,
548 &TranslatedAddress
) == FALSE
)
554 if (AddressSpace
!= 0)
555 return((PVOID
)(ULONG_PTR
)TranslatedAddress
.QuadPart
);
557 MappedAddress
= MmMapIoSpace(TranslatedAddress
,
561 DeviceBase
= ExAllocatePoolWithTag(NonPagedPool
,
562 sizeof(MAPPED_ADDRESS
), TAG_SCSIPORT
);
564 if (DeviceBase
== NULL
)
565 return MappedAddress
;
567 DeviceBase
->MappedAddress
= MappedAddress
;
568 DeviceBase
->NumberOfBytes
= NumberOfBytes
;
569 DeviceBase
->IoAddress
= IoAddress
;
570 DeviceBase
->BusNumber
= SystemIoBusNumber
;
572 /* Link it to the Device Extension list */
573 DeviceBase
->NextMappedAddress
= DeviceExtension
->MappedAddressList
;
574 DeviceExtension
->MappedAddressList
= DeviceBase
;
576 return MappedAddress
;
583 ScsiPortGetLogicalUnit(IN PVOID HwDeviceExtension
,
590 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
591 PSCSI_PORT_LUN_EXTENSION LunExtension
;
594 DPRINT("ScsiPortGetLogicalUnit() called\n");
596 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
597 SCSI_PORT_DEVICE_EXTENSION
,
598 MiniPortDeviceExtension
);
599 if (IsListEmpty(&DeviceExtension
->LunExtensionListHead
))
602 Entry
= DeviceExtension
->LunExtensionListHead
.Flink
;
603 while (Entry
!= &DeviceExtension
->LunExtensionListHead
)
605 LunExtension
= CONTAINING_RECORD(Entry
,
606 SCSI_PORT_LUN_EXTENSION
,
608 if (LunExtension
->PathId
== PathId
&&
609 LunExtension
->TargetId
== TargetId
&&
610 LunExtension
->Lun
== Lun
)
612 return (PVOID
)&LunExtension
->MiniportLunExtension
;
615 Entry
= Entry
->Flink
;
625 SCSI_PHYSICAL_ADDRESS NTAPI
626 ScsiPortGetPhysicalAddress(IN PVOID HwDeviceExtension
,
627 IN PSCSI_REQUEST_BLOCK Srb OPTIONAL
,
628 IN PVOID VirtualAddress
,
631 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
632 SCSI_PHYSICAL_ADDRESS PhysicalAddress
;
633 ULONG BufferLength
= 0;
635 PSCSI_SG_ADDRESS SGList
;
636 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
638 DPRINT("ScsiPortGetPhysicalAddress(%p %p %p %p)\n",
639 HwDeviceExtension
, Srb
, VirtualAddress
, Length
);
641 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
642 SCSI_PORT_DEVICE_EXTENSION
,
643 MiniPortDeviceExtension
);
645 if (Srb
== NULL
|| Srb
->SenseInfoBuffer
== VirtualAddress
)
647 /* Simply look it up in the allocated common buffer */
648 Offset
= (PUCHAR
)VirtualAddress
- (PUCHAR
)DeviceExtension
->SrbExtensionBuffer
;
650 BufferLength
= DeviceExtension
->CommonBufferLength
- Offset
;
651 PhysicalAddress
.QuadPart
= DeviceExtension
->PhysicalAddress
.QuadPart
+ Offset
;
653 else if (DeviceExtension
->MapRegisters
)
655 /* Scatter-gather list must be used */
656 SrbInfo
= SpiGetSrbData(DeviceExtension
,
662 SGList
= SrbInfo
->ScatterGather
;
664 /* Find needed item in the SG list */
665 Offset
= (PCHAR
)VirtualAddress
- (PCHAR
)Srb
->DataBuffer
;
666 while (Offset
>= SGList
->Length
)
668 Offset
-= SGList
->Length
;
672 /* We're done, store length and physical address */
673 BufferLength
= SGList
->Length
- Offset
;
674 PhysicalAddress
.QuadPart
= SGList
->PhysicalAddress
.QuadPart
+ Offset
;
680 PhysicalAddress
.QuadPart
= (LONGLONG
)(SP_UNINITIALIZED_VALUE
);
683 *Length
= BufferLength
;
684 return PhysicalAddress
;
691 PSCSI_REQUEST_BLOCK NTAPI
692 ScsiPortGetSrb(IN PVOID DeviceExtension
,
698 DPRINT1("ScsiPortGetSrb() unimplemented\n");
708 ScsiPortGetUncachedExtension(IN PVOID HwDeviceExtension
,
709 IN PPORT_CONFIGURATION_INFORMATION ConfigInfo
,
710 IN ULONG NumberOfBytes
)
712 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
713 DEVICE_DESCRIPTION DeviceDescription
;
714 ULONG MapRegistersCount
;
717 DPRINT("ScsiPortGetUncachedExtension(%p %p %lu)\n",
718 HwDeviceExtension
, ConfigInfo
, NumberOfBytes
);
720 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
721 SCSI_PORT_DEVICE_EXTENSION
,
722 MiniPortDeviceExtension
);
724 /* Check for allocated common DMA buffer */
725 if (DeviceExtension
->SrbExtensionBuffer
!= NULL
)
727 DPRINT1("The HBA has already got a common DMA buffer!\n");
731 /* Check for DMA adapter object */
732 if (DeviceExtension
->AdapterObject
== NULL
)
734 /* Initialize DMA adapter description */
735 RtlZeroMemory(&DeviceDescription
, sizeof(DEVICE_DESCRIPTION
));
737 DeviceDescription
.Version
= DEVICE_DESCRIPTION_VERSION
;
738 DeviceDescription
.Master
= ConfigInfo
->Master
;
739 DeviceDescription
.ScatterGather
= ConfigInfo
->ScatterGather
;
740 DeviceDescription
.DemandMode
= ConfigInfo
->DemandMode
;
741 DeviceDescription
.Dma32BitAddresses
= ConfigInfo
->Dma32BitAddresses
;
742 DeviceDescription
.BusNumber
= ConfigInfo
->SystemIoBusNumber
;
743 DeviceDescription
.DmaChannel
= ConfigInfo
->DmaChannel
;
744 DeviceDescription
.InterfaceType
= ConfigInfo
->AdapterInterfaceType
;
745 DeviceDescription
.DmaWidth
= ConfigInfo
->DmaWidth
;
746 DeviceDescription
.DmaSpeed
= ConfigInfo
->DmaSpeed
;
747 DeviceDescription
.MaximumLength
= ConfigInfo
->MaximumTransferLength
;
748 DeviceDescription
.DmaPort
= ConfigInfo
->DmaPort
;
750 /* Get a DMA adapter object */
751 DeviceExtension
->AdapterObject
=
752 HalGetAdapter(&DeviceDescription
, &MapRegistersCount
);
754 /* Fail in case of error */
755 if (DeviceExtension
->AdapterObject
== NULL
)
757 DPRINT1("HalGetAdapter() failed\n");
761 /* Set number of physical breaks */
762 if (ConfigInfo
->NumberOfPhysicalBreaks
!= 0 &&
763 MapRegistersCount
> ConfigInfo
->NumberOfPhysicalBreaks
)
765 DeviceExtension
->PortCapabilities
.MaximumPhysicalPages
=
766 ConfigInfo
->NumberOfPhysicalBreaks
;
770 DeviceExtension
->PortCapabilities
.MaximumPhysicalPages
= MapRegistersCount
;
774 /* Update auto request sense feature */
775 DeviceExtension
->SupportsAutoSense
= ConfigInfo
->AutoRequestSense
;
777 /* Update Srb extension size */
778 if (DeviceExtension
->SrbExtensionSize
!= ConfigInfo
->SrbExtensionSize
)
779 DeviceExtension
->SrbExtensionSize
= ConfigInfo
->SrbExtensionSize
;
781 /* Update Srb extension alloc flag */
782 if (ConfigInfo
->AutoRequestSense
|| DeviceExtension
->SrbExtensionSize
)
783 DeviceExtension
->NeedSrbExtensionAlloc
= TRUE
;
785 /* Allocate a common DMA buffer */
786 Status
= SpiAllocateCommonBuffer(DeviceExtension
, NumberOfBytes
);
788 if (!NT_SUCCESS(Status
))
790 DPRINT1("SpiAllocateCommonBuffer() failed with Status = 0x%08X!\n", Status
);
794 return DeviceExtension
->NonCachedExtension
;
798 SpiAllocateCommonBuffer(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
, ULONG NonCachedSize
)
800 PVOID
*SrbExtension
, CommonBuffer
;
801 ULONG CommonBufferLength
, BufSize
;
803 /* If size is 0, set it to 16 */
804 if (!DeviceExtension
->SrbExtensionSize
)
805 DeviceExtension
->SrbExtensionSize
= 16;
808 BufSize
= DeviceExtension
->SrbExtensionSize
;
810 /* Add autosense data size if needed */
811 if (DeviceExtension
->SupportsAutoSense
)
812 BufSize
+= sizeof(SENSE_DATA
);
816 BufSize
= (BufSize
+ sizeof(LONGLONG
) - 1) & ~(sizeof(LONGLONG
) - 1);
818 /* Sum up into the total common buffer length, and round it to page size */
820 ROUND_TO_PAGES(NonCachedSize
+ BufSize
* DeviceExtension
->RequestsNumber
);
823 if (!DeviceExtension
->AdapterObject
)
825 /* From nonpaged pool if there is no DMA */
826 CommonBuffer
= ExAllocatePoolWithTag(NonPagedPool
, CommonBufferLength
, TAG_SCSIPORT
);
830 /* Perform a full request since we have a DMA adapter*/
831 CommonBuffer
= HalAllocateCommonBuffer(DeviceExtension
->AdapterObject
,
833 &DeviceExtension
->PhysicalAddress
,
837 /* Fail in case of error */
839 return STATUS_INSUFFICIENT_RESOURCES
;
842 RtlZeroMemory(CommonBuffer
, CommonBufferLength
);
844 /* Store its size in Device Extension */
845 DeviceExtension
->CommonBufferLength
= CommonBufferLength
;
847 /* SrbExtension buffer is located at the beginning of the buffer */
848 DeviceExtension
->SrbExtensionBuffer
= CommonBuffer
;
850 /* Non-cached extension buffer is located at the end of
854 CommonBufferLength
-= NonCachedSize
;
855 DeviceExtension
->NonCachedExtension
= (PUCHAR
)CommonBuffer
+ CommonBufferLength
;
859 DeviceExtension
->NonCachedExtension
= NULL
;
862 if (DeviceExtension
->NeedSrbExtensionAlloc
)
864 /* Look up how many SRB data structures we need */
865 DeviceExtension
->SrbDataCount
= CommonBufferLength
/ BufSize
;
867 /* Initialize the free SRB extensions list */
868 SrbExtension
= (PVOID
*)CommonBuffer
;
869 DeviceExtension
->FreeSrbExtensions
= SrbExtension
;
871 /* Fill the remainding pointers (if we have more than 1 SRB) */
872 while (CommonBufferLength
>= 2 * BufSize
)
874 *SrbExtension
= (PVOID
*)((PCHAR
)SrbExtension
+ BufSize
);
875 SrbExtension
= *SrbExtension
;
877 CommonBufferLength
-= BufSize
;
881 return STATUS_SUCCESS
;
890 ScsiPortGetVirtualAddress(IN PVOID HwDeviceExtension
,
891 IN SCSI_PHYSICAL_ADDRESS PhysicalAddress
)
893 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
896 DPRINT("ScsiPortGetVirtualAddress(%p %I64x)\n",
897 HwDeviceExtension
, PhysicalAddress
.QuadPart
);
899 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
900 SCSI_PORT_DEVICE_EXTENSION
,
901 MiniPortDeviceExtension
);
903 if (DeviceExtension
->PhysicalAddress
.QuadPart
> PhysicalAddress
.QuadPart
)
906 Offset
= (ULONG
)(PhysicalAddress
.QuadPart
- DeviceExtension
->PhysicalAddress
.QuadPart
);
908 if (Offset
>= DeviceExtension
->CommonBufferLength
)
911 return (PVOID
)((ULONG_PTR
)DeviceExtension
->SrbExtensionBuffer
+ Offset
);
915 SpiInitOpenKeys(PCONFIGURATION_INFO ConfigInfo
, PUNICODE_STRING RegistryPath
)
917 OBJECT_ATTRIBUTES ObjectAttributes
;
918 UNICODE_STRING KeyName
;
921 /* Open the service key */
922 InitializeObjectAttributes(&ObjectAttributes
,
924 OBJ_CASE_INSENSITIVE
,
928 Status
= ZwOpenKey(&ConfigInfo
->ServiceKey
,
932 if (!NT_SUCCESS(Status
))
934 DPRINT("Unable to open driver's registry key %wZ, status 0x%08x\n", RegistryPath
, Status
);
935 ConfigInfo
->ServiceKey
= NULL
;
938 /* If we could open driver's service key, then proceed to the Parameters key */
939 if (ConfigInfo
->ServiceKey
!= NULL
)
941 RtlInitUnicodeString(&KeyName
, L
"Parameters");
942 InitializeObjectAttributes(&ObjectAttributes
,
944 OBJ_CASE_INSENSITIVE
,
945 ConfigInfo
->ServiceKey
,
946 (PSECURITY_DESCRIPTOR
) NULL
);
949 Status
= ZwOpenKey(&ConfigInfo
->DeviceKey
,
953 if (NT_SUCCESS(Status
))
955 /* Yes, Parameters key exist, and it must be used instead of
957 ZwClose(ConfigInfo
->ServiceKey
);
958 ConfigInfo
->ServiceKey
= ConfigInfo
->DeviceKey
;
959 ConfigInfo
->DeviceKey
= NULL
;
963 if (ConfigInfo
->ServiceKey
!= NULL
)
965 /* Open the Device key */
966 RtlInitUnicodeString(&KeyName
, L
"Device");
967 InitializeObjectAttributes(&ObjectAttributes
,
969 OBJ_CASE_INSENSITIVE
,
970 ConfigInfo
->ServiceKey
,
973 /* We don't check for failure here - not needed */
974 ZwOpenKey(&ConfigInfo
->DeviceKey
,
981 /**********************************************************************
986 * Initializes SCSI port driver specific data.
993 * Pointer to the miniport driver's driver object.
996 * Pointer to the miniport driver's registry path.
998 * HwInitializationData
999 * Pointer to port driver specific configuration data.
1002 Miniport driver specific context.
1011 ScsiPortInitialize(IN PVOID Argument1
,
1013 IN
struct _HW_INITIALIZATION_DATA
*HwInitializationData
,
1016 PDRIVER_OBJECT DriverObject
= (PDRIVER_OBJECT
)Argument1
;
1017 PUNICODE_STRING RegistryPath
= (PUNICODE_STRING
)Argument2
;
1018 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
= NULL
;
1019 PCONFIGURATION_INFORMATION SystemConfig
;
1020 PPORT_CONFIGURATION_INFORMATION PortConfig
;
1021 PORT_CONFIGURATION_INFORMATION InitialPortConfig
;
1022 CONFIGURATION_INFO ConfigInfo
;
1023 ULONG DeviceExtensionSize
;
1024 ULONG PortConfigSize
;
1026 BOOLEAN DeviceFound
= FALSE
;
1027 BOOLEAN FirstConfigCall
= TRUE
;
1031 ULONG BusNumber
= 0;
1032 PCI_SLOT_NUMBER SlotNumber
;
1034 PDEVICE_OBJECT PortDeviceObject
;
1035 WCHAR NameBuffer
[80];
1036 UNICODE_STRING DeviceName
;
1037 WCHAR DosNameBuffer
[80];
1038 UNICODE_STRING DosDeviceName
;
1039 PIO_SCSI_CAPABILITIES PortCapabilities
;
1044 PCM_RESOURCE_LIST ResourceList
;
1048 DPRINT ("ScsiPortInitialize() called!\n");
1050 /* Check params for validity */
1051 if ((HwInitializationData
->HwInitialize
== NULL
) ||
1052 (HwInitializationData
->HwStartIo
== NULL
) ||
1053 (HwInitializationData
->HwInterrupt
== NULL
) ||
1054 (HwInitializationData
->HwFindAdapter
== NULL
) ||
1055 (HwInitializationData
->HwResetBus
== NULL
))
1057 return STATUS_INVALID_PARAMETER
;
1061 DriverObject
->DriverStartIo
= ScsiPortStartIo
;
1062 DriverObject
->MajorFunction
[IRP_MJ_CREATE
] = ScsiPortCreateClose
;
1063 DriverObject
->MajorFunction
[IRP_MJ_CLOSE
] = ScsiPortCreateClose
;
1064 DriverObject
->MajorFunction
[IRP_MJ_DEVICE_CONTROL
] = ScsiPortDeviceControl
;
1065 DriverObject
->MajorFunction
[IRP_MJ_INTERNAL_DEVICE_CONTROL
] = ScsiPortDeviceControl
;
1066 DriverObject
->MajorFunction
[IRP_MJ_SCSI
] = ScsiPortDispatchScsi
;
1068 /* Obtain configuration information */
1069 SystemConfig
= IoGetConfigurationInformation();
1071 /* Zero the internal configuration info structure */
1072 RtlZeroMemory(&ConfigInfo
, sizeof(CONFIGURATION_INFO
));
1074 /* Zero starting slot number */
1075 SlotNumber
.u
.AsULONG
= 0;
1077 /* Allocate space for access ranges */
1078 if (HwInitializationData
->NumberOfAccessRanges
)
1080 ConfigInfo
.AccessRanges
=
1081 ExAllocatePoolWithTag(PagedPool
,
1082 HwInitializationData
->NumberOfAccessRanges
* sizeof(ACCESS_RANGE
), TAG_SCSIPORT
);
1084 /* Fail if failed */
1085 if (ConfigInfo
.AccessRanges
== NULL
)
1086 return STATUS_INSUFFICIENT_RESOURCES
;
1089 /* Open registry keys */
1090 SpiInitOpenKeys(&ConfigInfo
, (PUNICODE_STRING
)Argument2
);
1092 /* Last adapter number = not known */
1093 ConfigInfo
.LastAdapterNumber
= SP_UNINITIALIZED_VALUE
;
1095 /* Calculate sizes of DeviceExtension and PortConfig */
1096 DeviceExtensionSize
= sizeof(SCSI_PORT_DEVICE_EXTENSION
) +
1097 HwInitializationData
->DeviceExtensionSize
;
1099 MaxBus
= (HwInitializationData
->AdapterInterfaceType
== PCIBus
) ? 8 : 1;
1100 DPRINT("MaxBus: %lu\n", MaxBus
);
1104 /* Create a unicode device name */
1105 swprintf(NameBuffer
,
1106 L
"\\Device\\ScsiPort%lu",
1107 SystemConfig
->ScsiPortCount
);
1108 RtlInitUnicodeString(&DeviceName
, NameBuffer
);
1110 DPRINT("Creating device: %wZ\n", &DeviceName
);
1112 /* Create the port device */
1113 Status
= IoCreateDevice(DriverObject
,
1114 DeviceExtensionSize
,
1116 FILE_DEVICE_CONTROLLER
,
1121 if (!NT_SUCCESS(Status
))
1123 DPRINT1("IoCreateDevice call failed! (Status 0x%lX)\n", Status
);
1124 PortDeviceObject
= NULL
;
1128 DPRINT ("Created device: %wZ (%p)\n", &DeviceName
, PortDeviceObject
);
1130 /* Set the buffering strategy here... */
1131 PortDeviceObject
->Flags
|= DO_DIRECT_IO
;
1132 PortDeviceObject
->AlignmentRequirement
= FILE_WORD_ALIGNMENT
; /* FIXME: Is this really needed? */
1134 /* Fill Device Extension */
1135 DeviceExtension
= PortDeviceObject
->DeviceExtension
;
1136 DeviceExtension
->Length
= DeviceExtensionSize
;
1137 DeviceExtension
->DeviceObject
= PortDeviceObject
;
1138 DeviceExtension
->PortNumber
= SystemConfig
->ScsiPortCount
;
1140 /* Driver's routines... */
1141 DeviceExtension
->HwInitialize
= HwInitializationData
->HwInitialize
;
1142 DeviceExtension
->HwStartIo
= HwInitializationData
->HwStartIo
;
1143 DeviceExtension
->HwInterrupt
= HwInitializationData
->HwInterrupt
;
1144 DeviceExtension
->HwResetBus
= HwInitializationData
->HwResetBus
;
1145 DeviceExtension
->HwDmaStarted
= HwInitializationData
->HwDmaStarted
;
1147 /* Extensions sizes */
1148 DeviceExtension
->MiniPortExtensionSize
= HwInitializationData
->DeviceExtensionSize
;
1149 DeviceExtension
->LunExtensionSize
= HwInitializationData
->SpecificLuExtensionSize
;
1150 DeviceExtension
->SrbExtensionSize
= HwInitializationData
->SrbExtensionSize
;
1152 /* Round Srb extension size to the quadword */
1153 DeviceExtension
->SrbExtensionSize
=
1154 ~(sizeof(LONGLONG
) - 1) & (DeviceExtension
->SrbExtensionSize
+
1155 sizeof(LONGLONG
) - 1);
1157 /* Fill some numbers (bus count, lun count, etc) */
1158 DeviceExtension
->MaxLunCount
= SCSI_MAXIMUM_LOGICAL_UNITS
;
1159 DeviceExtension
->RequestsNumber
= 16;
1161 /* Initialize the spin lock in the controller extension */
1162 KeInitializeSpinLock(&DeviceExtension
->IrqLock
);
1163 KeInitializeSpinLock(&DeviceExtension
->SpinLock
);
1165 /* Initialize the DPC object */
1166 IoInitializeDpcRequest(PortDeviceObject
,
1169 /* Initialize the device timer */
1170 DeviceExtension
->TimerCount
= -1;
1171 IoInitializeTimer(PortDeviceObject
,
1175 /* Initialize miniport timer */
1176 KeInitializeTimer(&DeviceExtension
->MiniportTimer
);
1177 KeInitializeDpc(&DeviceExtension
->MiniportTimerDpc
,
1178 SpiMiniportTimerDpc
,
1183 Status
= SpiCreatePortConfig(DeviceExtension
,
1184 HwInitializationData
,
1189 if (!NT_SUCCESS(Status
))
1191 DPRINT("SpiCreatePortConfig() failed with Status 0x%08X\n", Status
);
1195 /* Allocate and initialize port configuration info */
1196 PortConfigSize
= (sizeof(PORT_CONFIGURATION_INFORMATION
) +
1197 HwInitializationData
->NumberOfAccessRanges
*
1198 sizeof(ACCESS_RANGE
) + 7) & ~7;
1199 DeviceExtension
->PortConfig
= ExAllocatePoolWithTag(NonPagedPool
, PortConfigSize
, TAG_SCSIPORT
);
1201 /* Fail if failed */
1202 if (DeviceExtension
->PortConfig
== NULL
)
1204 Status
= STATUS_INSUFFICIENT_RESOURCES
;
1208 PortConfig
= DeviceExtension
->PortConfig
;
1210 /* Copy information here */
1211 RtlCopyMemory(PortConfig
,
1213 sizeof(PORT_CONFIGURATION_INFORMATION
));
1216 /* Copy extension sizes into the PortConfig */
1217 PortConfig
->SpecificLuExtensionSize
= DeviceExtension
->LunExtensionSize
;
1218 PortConfig
->SrbExtensionSize
= DeviceExtension
->SrbExtensionSize
;
1220 /* Initialize Access ranges */
1221 if (HwInitializationData
->NumberOfAccessRanges
!= 0)
1223 PortConfig
->AccessRanges
= (PVOID
)(PortConfig
+1);
1225 /* Align to LONGLONG */
1226 PortConfig
->AccessRanges
= (PVOID
)((ULONG_PTR
)(PortConfig
->AccessRanges
) + 7);
1227 PortConfig
->AccessRanges
= (PVOID
)((ULONG_PTR
)(PortConfig
->AccessRanges
) & ~7);
1230 RtlCopyMemory(PortConfig
->AccessRanges
,
1231 ConfigInfo
.AccessRanges
,
1232 HwInitializationData
->NumberOfAccessRanges
* sizeof(ACCESS_RANGE
));
1235 /* Search for matching PCI device */
1236 if ((HwInitializationData
->AdapterInterfaceType
== PCIBus
) &&
1237 (HwInitializationData
->VendorIdLength
> 0) &&
1238 (HwInitializationData
->VendorId
!= NULL
) &&
1239 (HwInitializationData
->DeviceIdLength
> 0) &&
1240 (HwInitializationData
->DeviceId
!= NULL
))
1242 PortConfig
->BusInterruptLevel
= 0;
1244 /* Get PCI device data */
1245 DPRINT("VendorId '%.*s' DeviceId '%.*s'\n",
1246 HwInitializationData
->VendorIdLength
,
1247 HwInitializationData
->VendorId
,
1248 HwInitializationData
->DeviceIdLength
,
1249 HwInitializationData
->DeviceId
);
1251 if (!SpiGetPciConfigData(DriverObject
,
1253 HwInitializationData
,
1256 ConfigInfo
.BusNumber
,
1259 /* Continue to the next bus, nothing here */
1260 ConfigInfo
.BusNumber
++;
1261 DeviceExtension
->PortConfig
= NULL
;
1262 ExFreePool(PortConfig
);
1264 goto CreatePortConfig
;
1267 if (!PortConfig
->BusInterruptLevel
)
1269 /* Bypass this slot, because no interrupt was assigned */
1270 DeviceExtension
->PortConfig
= NULL
;
1271 ExFreePool(PortConfig
);
1272 goto CreatePortConfig
;
1277 DPRINT("Non-pci bus\n");
1280 /* Note: HwFindAdapter is called once for each bus */
1282 DPRINT("Calling HwFindAdapter() for Bus %lu\n", PortConfig
->SystemIoBusNumber
);
1283 Result
= (HwInitializationData
->HwFindAdapter
)(&DeviceExtension
->MiniPortDeviceExtension
,
1285 0, /* BusInformation */
1286 ConfigInfo
.Parameter
, /* ArgumentString */
1290 DPRINT("HwFindAdapter() Result: %lu Again: %s\n",
1291 Result
, (Again
) ? "True" : "False");
1293 /* Free MapRegisterBase, it's not needed anymore */
1294 if (DeviceExtension
->MapRegisterBase
!= NULL
)
1296 ExFreePool(DeviceExtension
->MapRegisterBase
);
1297 DeviceExtension
->MapRegisterBase
= NULL
;
1300 /* If result is nothing good... */
1301 if (Result
!= SP_RETURN_FOUND
)
1303 DPRINT("HwFindAdapter() Result: %lu\n", Result
);
1305 if (Result
== SP_RETURN_NOT_FOUND
)
1307 /* We can continue on the next bus */
1308 ConfigInfo
.BusNumber
++;
1311 DeviceExtension
->PortConfig
= NULL
;
1312 ExFreePool(PortConfig
);
1313 goto CreatePortConfig
;
1316 /* Otherwise, break */
1317 Status
= STATUS_INTERNAL_ERROR
;
1321 DPRINT("ScsiPortInitialize(): Found HBA! (%x), adapter Id %d\n",
1322 PortConfig
->BusInterruptVector
, PortConfig
->InitiatorBusId
[0]);
1324 /* If the SRB extension size was updated */
1325 if (!DeviceExtension
->NonCachedExtension
&&
1326 (PortConfig
->SrbExtensionSize
!= DeviceExtension
->SrbExtensionSize
))
1328 /* Set it (rounding to LONGLONG again) */
1329 DeviceExtension
->SrbExtensionSize
=
1330 (PortConfig
->SrbExtensionSize
+
1331 sizeof(LONGLONG
)) & ~(sizeof(LONGLONG
) - 1);
1334 /* The same with LUN extension size */
1335 if (PortConfig
->SpecificLuExtensionSize
!= DeviceExtension
->LunExtensionSize
)
1336 DeviceExtension
->LunExtensionSize
= PortConfig
->SpecificLuExtensionSize
;
1339 if (!((HwInitializationData
->AdapterInterfaceType
== PCIBus
) &&
1340 (HwInitializationData
->VendorIdLength
> 0) &&
1341 (HwInitializationData
->VendorId
!= NULL
) &&
1342 (HwInitializationData
->DeviceIdLength
> 0) &&
1343 (HwInitializationData
->DeviceId
!= NULL
)))
1345 /* Construct a resource list */
1346 ResourceList
= SpiConfigToResource(DeviceExtension
,
1351 UNICODE_STRING UnicodeString
;
1352 RtlInitUnicodeString(&UnicodeString
, L
"ScsiAdapter");
1353 DPRINT("Reporting resources\n");
1354 Status
= IoReportResourceUsage(&UnicodeString
,
1360 FIELD_OFFSET(CM_RESOURCE_LIST
,
1361 List
[0].PartialResourceList
.PartialDescriptors
) +
1362 ResourceList
->List
[0].PartialResourceList
.Count
1363 * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR
),
1366 ExFreePool(ResourceList
);
1368 /* In case of a failure or a conflict, break */
1369 if (Conflict
|| (!NT_SUCCESS(Status
)))
1372 Status
= STATUS_CONFLICTING_ADDRESSES
;
1378 /* Reset the Conflict var */
1381 /* Copy all stuff which we ever need from PortConfig to the DeviceExtension */
1382 if (PortConfig
->MaximumNumberOfTargets
> SCSI_MAXIMUM_TARGETS_PER_BUS
)
1383 DeviceExtension
->MaxTargedIds
= SCSI_MAXIMUM_TARGETS_PER_BUS
;
1385 DeviceExtension
->MaxTargedIds
= PortConfig
->MaximumNumberOfTargets
;
1387 DeviceExtension
->BusNum
= PortConfig
->NumberOfBuses
;
1388 DeviceExtension
->CachesData
= PortConfig
->CachesData
;
1389 DeviceExtension
->ReceiveEvent
= PortConfig
->ReceiveEvent
;
1390 DeviceExtension
->SupportsTaggedQueuing
= PortConfig
->TaggedQueuing
;
1391 DeviceExtension
->MultipleReqsPerLun
= PortConfig
->MultipleRequestPerLu
;
1393 /* If something was disabled via registry - apply it */
1394 if (ConfigInfo
.DisableMultipleLun
)
1395 DeviceExtension
->MultipleReqsPerLun
= PortConfig
->MultipleRequestPerLu
= FALSE
;
1397 if (ConfigInfo
.DisableTaggedQueueing
)
1398 DeviceExtension
->SupportsTaggedQueuing
= PortConfig
->MultipleRequestPerLu
= FALSE
;
1400 /* Check if we need to alloc SRB data */
1401 if (DeviceExtension
->SupportsTaggedQueuing
||
1402 DeviceExtension
->MultipleReqsPerLun
)
1404 DeviceExtension
->NeedSrbDataAlloc
= TRUE
;
1408 DeviceExtension
->NeedSrbDataAlloc
= FALSE
;
1411 /* Get a pointer to the port capabilities */
1412 PortCapabilities
= &DeviceExtension
->PortCapabilities
;
1414 /* Copy one field there */
1415 DeviceExtension
->MapBuffers
= PortConfig
->MapBuffers
;
1416 PortCapabilities
->AdapterUsesPio
= PortConfig
->MapBuffers
;
1418 if (DeviceExtension
->AdapterObject
== NULL
&&
1419 (PortConfig
->DmaChannel
!= SP_UNINITIALIZED_VALUE
|| PortConfig
->Master
))
1421 DPRINT1("DMA is not supported yet\n");
1425 if (DeviceExtension
->SrbExtensionBuffer
== NULL
&&
1426 (DeviceExtension
->SrbExtensionSize
!= 0 ||
1427 PortConfig
->AutoRequestSense
))
1429 DeviceExtension
->SupportsAutoSense
= PortConfig
->AutoRequestSense
;
1430 DeviceExtension
->NeedSrbExtensionAlloc
= TRUE
;
1432 /* Allocate common buffer */
1433 Status
= SpiAllocateCommonBuffer(DeviceExtension
, 0);
1435 /* Check for failure */
1436 if (!NT_SUCCESS(Status
))
1440 /* Allocate SrbData, if needed */
1441 if (DeviceExtension
->NeedSrbDataAlloc
)
1444 PSCSI_REQUEST_BLOCK_INFO SrbData
;
1446 if (DeviceExtension
->SrbDataCount
!= 0)
1447 Count
= DeviceExtension
->SrbDataCount
;
1449 Count
= DeviceExtension
->RequestsNumber
* 2;
1451 /* Allocate the data */
1452 SrbData
= ExAllocatePoolWithTag(NonPagedPool
, Count
* sizeof(SCSI_REQUEST_BLOCK_INFO
), TAG_SCSIPORT
);
1453 if (SrbData
== NULL
)
1454 return STATUS_INSUFFICIENT_RESOURCES
;
1456 RtlZeroMemory(SrbData
, Count
* sizeof(SCSI_REQUEST_BLOCK_INFO
));
1458 DeviceExtension
->SrbInfo
= SrbData
;
1459 DeviceExtension
->FreeSrbInfo
= SrbData
;
1460 DeviceExtension
->SrbDataCount
= Count
;
1462 /* Link it to the list */
1465 SrbData
->Requests
.Flink
= (PLIST_ENTRY
)(SrbData
+ 1);
1470 /* Mark the last entry of the list */
1472 SrbData
->Requests
.Flink
= NULL
;
1475 /* Initialize port capabilities */
1476 PortCapabilities
= &DeviceExtension
->PortCapabilities
;
1477 PortCapabilities
->Length
= sizeof(IO_SCSI_CAPABILITIES
);
1478 PortCapabilities
->MaximumTransferLength
= PortConfig
->MaximumTransferLength
;
1480 if (PortConfig
->ReceiveEvent
)
1481 PortCapabilities
->SupportedAsynchronousEvents
|= SRBEV_SCSI_ASYNC_NOTIFICATION
;
1483 PortCapabilities
->TaggedQueuing
= DeviceExtension
->SupportsTaggedQueuing
;
1484 PortCapabilities
->AdapterScansDown
= PortConfig
->AdapterScansDown
;
1486 if (PortConfig
->AlignmentMask
> PortDeviceObject
->AlignmentRequirement
)
1487 PortDeviceObject
->AlignmentRequirement
= PortConfig
->AlignmentMask
;
1489 PortCapabilities
->AlignmentMask
= PortDeviceObject
->AlignmentRequirement
;
1491 if (PortCapabilities
->MaximumPhysicalPages
== 0)
1493 PortCapabilities
->MaximumPhysicalPages
=
1494 BYTES_TO_PAGES(PortCapabilities
->MaximumTransferLength
);
1496 /* Apply miniport's limits */
1497 if (PortConfig
->NumberOfPhysicalBreaks
< PortCapabilities
->MaximumPhysicalPages
)
1499 PortCapabilities
->MaximumPhysicalPages
= PortConfig
->NumberOfPhysicalBreaks
;
1503 /* Deal with interrupts */
1504 if (DeviceExtension
->HwInterrupt
== NULL
||
1505 (PortConfig
->BusInterruptLevel
== 0 && PortConfig
->BusInterruptVector
== 0))
1508 KeInitializeSpinLock(&DeviceExtension
->IrqLock
);
1510 /* FIXME: Use synchronization routine */
1511 ASSERT("No interrupts branch requires changes in synchronization\n");
1513 DeviceExtension
->Interrupt
= (PVOID
)DeviceExtension
;
1514 DPRINT("No interrupts\n");
1519 /* Are 2 interrupts needed? */
1520 if (DeviceExtension
->HwInterrupt
!= NULL
&&
1521 (PortConfig
->BusInterruptLevel
!= 0 || PortConfig
->BusInterruptVector
!= 0) &&
1522 (PortConfig
->BusInterruptLevel2
!= 0 || PortConfig
->BusInterruptVector2
!= 0))
1524 DPRINT1("2 interrupts requested! Not yet supported\n");
1529 BOOLEAN InterruptShareable
;
1531 /* No, only 1 interrupt */
1532 DPRINT("1 interrupt, IRQ is %d\n", PortConfig
->BusInterruptLevel
);
1534 DeviceExtension
->InterruptLevel
= PortConfig
->BusInterruptLevel
;
1536 /* Register an interrupt handler for this device */
1537 MappedIrq
= HalGetInterruptVector(PortConfig
->AdapterInterfaceType
,
1538 PortConfig
->SystemIoBusNumber
,
1539 PortConfig
->BusInterruptLevel
,
1540 PortConfig
->BusInterruptVector
,
1544 /* Determing IRQ sharability as usual */
1545 if (PortConfig
->AdapterInterfaceType
== MicroChannel
||
1546 PortConfig
->InterruptMode
== LevelSensitive
)
1548 InterruptShareable
= TRUE
;
1552 InterruptShareable
= FALSE
;
1555 Status
= IoConnectInterrupt(&DeviceExtension
->Interrupt
,
1556 (PKSERVICE_ROUTINE
)ScsiPortIsr
,
1562 PortConfig
->InterruptMode
,
1567 if (!(NT_SUCCESS(Status
)))
1569 DPRINT1("Could not connect interrupt %d\n",
1570 PortConfig
->BusInterruptVector
);
1571 DeviceExtension
->Interrupt
= NULL
;
1578 /* Save IoAddress (from access ranges) */
1579 if (HwInitializationData
->NumberOfAccessRanges
!= 0)
1581 DeviceExtension
->IoAddress
=
1582 ((*(PortConfig
->AccessRanges
))[0]).RangeStart
.LowPart
;
1584 DPRINT("Io Address %x\n", DeviceExtension
->IoAddress
);
1587 /* Set flag that it's allowed to disconnect during this command */
1588 DeviceExtension
->Flags
|= SCSI_PORT_DISCONNECT_ALLOWED
;
1590 /* Initialize counter of active requests (-1 means there are none) */
1591 DeviceExtension
->ActiveRequestCounter
= -1;
1593 /* Analyze what we have about DMA */
1594 if (DeviceExtension
->AdapterObject
!= NULL
&&
1595 PortConfig
->Master
&&
1596 PortConfig
->NeedPhysicalAddresses
)
1598 DeviceExtension
->MapRegisters
= TRUE
;
1602 DeviceExtension
->MapRegisters
= FALSE
;
1605 /* Call HwInitialize at DISPATCH_LEVEL */
1606 KeRaiseIrql(DISPATCH_LEVEL
, &Dirql
);
1608 if (!KeSynchronizeExecution(DeviceExtension
->Interrupt
,
1609 DeviceExtension
->HwInitialize
,
1610 DeviceExtension
->MiniPortDeviceExtension
))
1612 DPRINT1("HwInitialize() failed!\n");
1614 Status
= STATUS_ADAPTER_HARDWARE_ERROR
;
1618 /* Check if a notification is needed */
1619 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
1621 /* Call DPC right away, because we're already at DISPATCH_LEVEL */
1622 ScsiPortDpcForIsr(NULL
,
1623 DeviceExtension
->DeviceObject
,
1628 /* Lower irql back to what it was */
1631 /* Start our timer */
1632 IoStartTimer(PortDeviceObject
);
1634 /* Initialize bus scanning information */
1635 DeviceExtension
->BusesConfig
= ExAllocatePoolWithTag(PagedPool
,
1636 sizeof(PSCSI_BUS_SCAN_INFO
) * DeviceExtension
->PortConfig
->NumberOfBuses
1637 + sizeof(ULONG
), TAG_SCSIPORT
);
1639 if (!DeviceExtension
->BusesConfig
)
1641 DPRINT1("Out of resources!\n");
1642 Status
= STATUS_INSUFFICIENT_RESOURCES
;
1647 RtlZeroMemory(DeviceExtension
->BusesConfig
,
1648 sizeof(PSCSI_BUS_SCAN_INFO
) * DeviceExtension
->PortConfig
->NumberOfBuses
1651 /* Store number of buses there */
1652 DeviceExtension
->BusesConfig
->NumberOfBuses
= (UCHAR
)DeviceExtension
->BusNum
;
1654 /* Scan the adapter for devices */
1655 SpiScanAdapter(DeviceExtension
);
1657 /* Build the registry device map */
1658 SpiBuildDeviceMap(DeviceExtension
,
1659 (PUNICODE_STRING
)Argument2
);
1661 /* Create the dos device link */
1662 swprintf(DosNameBuffer
,
1664 SystemConfig
->ScsiPortCount
);
1665 RtlInitUnicodeString(&DosDeviceName
, DosNameBuffer
);
1666 IoCreateSymbolicLink(&DosDeviceName
, &DeviceName
);
1668 /* Increase the port count */
1669 SystemConfig
->ScsiPortCount
++;
1670 FirstConfigCall
= FALSE
;
1672 /* Increase adapter number and bus number respectively */
1673 ConfigInfo
.AdapterNumber
++;
1676 ConfigInfo
.BusNumber
++;
1678 DPRINT("Bus: %lu MaxBus: %lu\n", BusNumber
, MaxBus
);
1683 /* Clean up the mess */
1684 SpiCleanupAfterInit(DeviceExtension
);
1686 /* Close registry keys */
1687 if (ConfigInfo
.ServiceKey
!= NULL
)
1688 ZwClose(ConfigInfo
.ServiceKey
);
1690 if (ConfigInfo
.DeviceKey
!= NULL
)
1691 ZwClose(ConfigInfo
.DeviceKey
);
1693 if (ConfigInfo
.BusKey
!= NULL
)
1694 ZwClose(ConfigInfo
.BusKey
);
1696 if (ConfigInfo
.AccessRanges
!= NULL
)
1697 ExFreePool(ConfigInfo
.AccessRanges
);
1699 if (ConfigInfo
.Parameter
!= NULL
)
1700 ExFreePool(ConfigInfo
.Parameter
);
1702 DPRINT("ScsiPortInitialize() done, Status = 0x%08X, DeviceFound = %d!\n",
1703 Status
, DeviceFound
);
1705 return (DeviceFound
== FALSE
) ? Status
: STATUS_SUCCESS
;
1709 SpiCleanupAfterInit(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
)
1711 PSCSI_LUN_INFO LunInfo
;
1715 /* Check if we have something to clean up */
1716 if (DeviceExtension
== NULL
)
1719 /* Stop the timer and disconnect the interrupt */
1720 if (DeviceExtension
->Interrupt
)
1722 IoStopTimer(DeviceExtension
->DeviceObject
);
1723 IoDisconnectInterrupt(DeviceExtension
->Interrupt
);
1726 /* Delete ConfigInfo */
1727 if (DeviceExtension
->BusesConfig
)
1729 for (Bus
= 0; Bus
< DeviceExtension
->BusNum
; Bus
++)
1731 if (!DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
])
1734 LunInfo
= DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->LunInfo
;
1738 /* Free current, but save pointer to the next one */
1739 Ptr
= LunInfo
->Next
;
1740 ExFreePool(LunInfo
);
1744 ExFreePool(DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]);
1747 ExFreePool(DeviceExtension
->BusesConfig
);
1750 /* Free PortConfig */
1751 if (DeviceExtension
->PortConfig
)
1752 ExFreePool(DeviceExtension
->PortConfig
);
1755 for(Lun
= 0; Lun
< LUS_NUMBER
; Lun
++)
1757 while (DeviceExtension
->LunExtensionList
[Lun
])
1759 Ptr
= DeviceExtension
->LunExtensionList
[Lun
];
1760 DeviceExtension
->LunExtensionList
[Lun
] = DeviceExtension
->LunExtensionList
[Lun
]->Next
;
1766 /* Free common buffer (if it exists) */
1767 if (DeviceExtension
->SrbExtensionBuffer
!= NULL
&&
1768 DeviceExtension
->CommonBufferLength
!= 0)
1770 if (!DeviceExtension
->AdapterObject
)
1772 ExFreePool(DeviceExtension
->SrbExtensionBuffer
);
1776 HalFreeCommonBuffer(DeviceExtension
->AdapterObject
,
1777 DeviceExtension
->CommonBufferLength
,
1778 DeviceExtension
->PhysicalAddress
,
1779 DeviceExtension
->SrbExtensionBuffer
,
1785 if (DeviceExtension
->SrbInfo
!= NULL
)
1786 ExFreePool(DeviceExtension
->SrbInfo
);
1788 /* Unmap mapped addresses */
1789 while (DeviceExtension
->MappedAddressList
!= NULL
)
1791 MmUnmapIoSpace(DeviceExtension
->MappedAddressList
->MappedAddress
,
1792 DeviceExtension
->MappedAddressList
->NumberOfBytes
);
1794 Ptr
= DeviceExtension
->MappedAddressList
;
1795 DeviceExtension
->MappedAddressList
= DeviceExtension
->MappedAddressList
->NextMappedAddress
;
1800 /* Finally delete the device object */
1801 DPRINT("Deleting device %p\n", DeviceExtension
->DeviceObject
);
1802 IoDeleteDevice(DeviceExtension
->DeviceObject
);
1809 ScsiPortIoMapTransfer(IN PVOID HwDeviceExtension
,
1810 IN PSCSI_REQUEST_BLOCK Srb
,
1811 IN PVOID LogicalAddress
,
1814 DPRINT1("ScsiPortIoMapTransfer()\n");
1822 ScsiPortLogError(IN PVOID HwDeviceExtension
,
1823 IN PSCSI_REQUEST_BLOCK Srb OPTIONAL
,
1830 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
1832 DPRINT1("ScsiPortLogError() called\n");
1834 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
1835 SCSI_PORT_DEVICE_EXTENSION
,
1836 MiniPortDeviceExtension
);
1839 DPRINT("ScsiPortLogError() done\n");
1846 ScsiPortMoveMemory(OUT PVOID Destination
,
1850 RtlMoveMemory(Destination
,
1860 ScsiPortNotification(IN SCSI_NOTIFICATION_TYPE NotificationType
,
1861 IN PVOID HwDeviceExtension
,
1864 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
1867 DPRINT("ScsiPortNotification() called\n");
1869 DeviceExtension
= CONTAINING_RECORD(HwDeviceExtension
,
1870 SCSI_PORT_DEVICE_EXTENSION
,
1871 MiniPortDeviceExtension
);
1873 DPRINT("DeviceExtension %p\n", DeviceExtension
);
1875 va_start(ap
, HwDeviceExtension
);
1877 switch (NotificationType
)
1879 case RequestComplete
:
1881 PSCSI_REQUEST_BLOCK Srb
;
1882 PSCSI_REQUEST_BLOCK_INFO SrbData
;
1884 Srb
= (PSCSI_REQUEST_BLOCK
) va_arg (ap
, PSCSI_REQUEST_BLOCK
);
1886 DPRINT("Notify: RequestComplete (Srb %p)\n", Srb
);
1888 /* Make sure Srb is allright */
1889 ASSERT(Srb
->SrbStatus
!= SRB_STATUS_PENDING
);
1890 ASSERT(Srb
->Function
!= SRB_FUNCTION_EXECUTE_SCSI
|| Srb
->SrbStatus
!= SRB_STATUS_SUCCESS
|| Srb
->ScsiStatus
== SCSISTAT_GOOD
);
1892 if (!(Srb
->SrbFlags
& SRB_FLAGS_IS_ACTIVE
))
1894 /* It's been already completed */
1899 /* It's not active anymore */
1900 Srb
->SrbFlags
&= ~SRB_FLAGS_IS_ACTIVE
;
1902 if (Srb
->Function
== SRB_FUNCTION_ABORT_COMMAND
)
1904 /* TODO: Treat it specially */
1909 /* Get the SRB data */
1910 SrbData
= SpiGetSrbData(DeviceExtension
,
1916 /* Make sure there are no CompletedRequests and there is a Srb */
1917 ASSERT(SrbData
->CompletedRequests
== NULL
&& SrbData
->Srb
!= NULL
);
1919 /* If it's a read/write request, make sure it has data inside it */
1920 if ((Srb
->SrbStatus
== SRB_STATUS_SUCCESS
) &&
1921 ((Srb
->Cdb
[0] == SCSIOP_READ
) || (Srb
->Cdb
[0] == SCSIOP_WRITE
)))
1923 ASSERT(Srb
->DataTransferLength
);
1926 SrbData
->CompletedRequests
= DeviceExtension
->InterruptData
.CompletedRequests
;
1927 DeviceExtension
->InterruptData
.CompletedRequests
= SrbData
;
1933 DPRINT("Notify: NextRequest\n");
1934 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_NEXT_REQUEST_READY
;
1942 PSCSI_PORT_LUN_EXTENSION LunExtension
;
1944 PathId
= (UCHAR
) va_arg (ap
, int);
1945 TargetId
= (UCHAR
) va_arg (ap
, int);
1946 Lun
= (UCHAR
) va_arg (ap
, int);
1948 DPRINT("Notify: NextLuRequest(PathId %u TargetId %u Lun %u)\n",
1949 PathId
, TargetId
, Lun
);
1951 /* Mark it in the flags field */
1952 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_NEXT_REQUEST_READY
;
1954 /* Get the LUN extension */
1955 LunExtension
= SpiGetLunExtension(DeviceExtension
,
1960 /* If returned LunExtension is NULL, break out */
1961 if (!LunExtension
) break;
1963 /* This request should not be processed if */
1964 if ((LunExtension
->ReadyLun
) ||
1965 (LunExtension
->SrbInfo
.Srb
))
1967 /* Nothing to do here */
1971 /* Add this LUN to the list */
1972 LunExtension
->ReadyLun
= DeviceExtension
->InterruptData
.ReadyLun
;
1973 DeviceExtension
->InterruptData
.ReadyLun
= LunExtension
;
1978 DPRINT("Notify: ResetDetected\n");
1979 /* Add RESET flags */
1980 DeviceExtension
->InterruptData
.Flags
|=
1981 SCSI_PORT_RESET
| SCSI_PORT_RESET_REPORTED
;
1985 DPRINT1 ("Unsupported notification %lu\n", NotificationType
);
1991 /* Request a DPC after we're done with the interrupt */
1992 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_NOTIFICATION_NEEDED
;
1999 ScsiPortValidateRange(IN PVOID HwDeviceExtension
,
2000 IN INTERFACE_TYPE BusType
,
2001 IN ULONG SystemIoBusNumber
,
2002 IN SCSI_PHYSICAL_ADDRESS IoAddress
,
2003 IN ULONG NumberOfBytes
,
2004 IN BOOLEAN InIoSpace
)
2006 DPRINT("ScsiPortValidateRange()\n");
2011 /* INTERNAL FUNCTIONS ********************************************************/
2014 SpiResourceToConfig(IN PHW_INITIALIZATION_DATA HwInitializationData
,
2015 IN PCM_FULL_RESOURCE_DESCRIPTOR ResourceDescriptor
,
2016 IN PPORT_CONFIGURATION_INFORMATION PortConfig
)
2018 PACCESS_RANGE AccessRange
;
2019 PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialData
;
2025 /* Loop through all entries */
2026 for (Index
= 0; Index
< ResourceDescriptor
->PartialResourceList
.Count
; Index
++)
2028 PartialData
= &ResourceDescriptor
->PartialResourceList
.PartialDescriptors
[Index
];
2030 switch (PartialData
->Type
)
2032 case CmResourceTypePort
:
2033 /* Copy access ranges */
2034 if (RangeNumber
< HwInitializationData
->NumberOfAccessRanges
)
2036 AccessRange
= &((*(PortConfig
->AccessRanges
))[RangeNumber
]);
2038 AccessRange
->RangeStart
= PartialData
->u
.Port
.Start
;
2039 AccessRange
->RangeLength
= PartialData
->u
.Port
.Length
;
2041 AccessRange
->RangeInMemory
= FALSE
;
2046 case CmResourceTypeMemory
:
2047 /* Copy access ranges */
2048 if (RangeNumber
< HwInitializationData
->NumberOfAccessRanges
)
2050 AccessRange
= &((*(PortConfig
->AccessRanges
))[RangeNumber
]);
2052 AccessRange
->RangeStart
= PartialData
->u
.Memory
.Start
;
2053 AccessRange
->RangeLength
= PartialData
->u
.Memory
.Length
;
2055 AccessRange
->RangeInMemory
= TRUE
;
2060 case CmResourceTypeInterrupt
:
2061 /* Copy interrupt data */
2062 PortConfig
->BusInterruptLevel
= PartialData
->u
.Interrupt
.Level
;
2063 PortConfig
->BusInterruptVector
= PartialData
->u
.Interrupt
.Vector
;
2065 /* Set interrupt mode accordingly to the resource */
2066 if (PartialData
->Flags
== CM_RESOURCE_INTERRUPT_LATCHED
)
2068 PortConfig
->InterruptMode
= Latched
;
2070 else if (PartialData
->Flags
== CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
)
2072 PortConfig
->InterruptMode
= LevelSensitive
;
2076 case CmResourceTypeDma
:
2077 PortConfig
->DmaChannel
= PartialData
->u
.Dma
.Channel
;
2078 PortConfig
->DmaPort
= PartialData
->u
.Dma
.Port
;
2084 static PCM_RESOURCE_LIST
2085 SpiConfigToResource(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
2086 PPORT_CONFIGURATION_INFORMATION PortConfig
)
2088 PCONFIGURATION_INFORMATION ConfigInfo
;
2089 PCM_RESOURCE_LIST ResourceList
;
2090 PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDescriptor
;
2091 PACCESS_RANGE AccessRange
;
2093 ULONG ListLength
= 0, i
, FullSize
;
2096 /* Get current Atdisk usage from the system */
2097 ConfigInfo
= IoGetConfigurationInformation();
2099 if (PortConfig
->AtdiskPrimaryClaimed
)
2100 ConfigInfo
->AtDiskPrimaryAddressClaimed
= TRUE
;
2102 if (PortConfig
->AtdiskSecondaryClaimed
)
2103 ConfigInfo
->AtDiskSecondaryAddressClaimed
= TRUE
;
2105 /* Do we use DMA? */
2106 if (PortConfig
->DmaChannel
!= SP_UNINITIALIZED_VALUE
||
2107 PortConfig
->DmaPort
!= SP_UNINITIALIZED_VALUE
)
2117 /* How many interrupts to we have? */
2118 if (DeviceExtension
->HwInterrupt
== NULL
||
2119 (PortConfig
->BusInterruptLevel
== 0 &&
2120 PortConfig
->BusInterruptVector
== 0))
2130 if (DeviceExtension
->HwInterrupt
!= NULL
&&
2131 (PortConfig
->BusInterruptLevel2
!= 0 ||
2132 PortConfig
->BusInterruptVector2
!= 0))
2138 /* How many access ranges do we use? */
2139 AccessRange
= &((*(PortConfig
->AccessRanges
))[0]);
2140 for (i
= 0; i
< PortConfig
->NumberOfAccessRanges
; i
++)
2142 if (AccessRange
->RangeLength
!= 0)
2148 /* Allocate the resource list, since we know its size now */
2149 FullSize
= sizeof(CM_RESOURCE_LIST
) + (ListLength
- 1) *
2150 sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR
);
2152 ResourceList
= (PCM_RESOURCE_LIST
)ExAllocatePoolWithTag(PagedPool
, FullSize
, TAG_SCSIPORT
);
2158 RtlZeroMemory(ResourceList
, FullSize
);
2161 ResourceList
->Count
= 1;
2162 ResourceList
->List
[0].InterfaceType
= PortConfig
->AdapterInterfaceType
;
2163 ResourceList
->List
[0].BusNumber
= PortConfig
->SystemIoBusNumber
;
2164 ResourceList
->List
[0].PartialResourceList
.Count
= ListLength
;
2165 ResourceDescriptor
= ResourceList
->List
[0].PartialResourceList
.PartialDescriptors
;
2167 /* Copy access ranges array over */
2168 for (i
= 0; i
< PortConfig
->NumberOfAccessRanges
; i
++)
2170 AccessRange
= &((*(PortConfig
->AccessRanges
))[i
]);
2172 /* If the range is empty - skip it */
2173 if (AccessRange
->RangeLength
== 0)
2176 if (AccessRange
->RangeInMemory
)
2178 ResourceDescriptor
->Type
= CmResourceTypeMemory
;
2179 ResourceDescriptor
->Flags
= CM_RESOURCE_MEMORY_READ_WRITE
;
2183 ResourceDescriptor
->Type
= CmResourceTypePort
;
2184 ResourceDescriptor
->Flags
= CM_RESOURCE_PORT_IO
;
2187 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
2189 ResourceDescriptor
->u
.Memory
.Start
= AccessRange
->RangeStart
;
2190 ResourceDescriptor
->u
.Memory
.Length
= AccessRange
->RangeLength
;
2192 ResourceDescriptor
++;
2195 /* If we use interrupt(s), copy them */
2198 ResourceDescriptor
->Type
= CmResourceTypeInterrupt
;
2200 if (PortConfig
->AdapterInterfaceType
== MicroChannel
||
2201 PortConfig
->InterruptMode
== LevelSensitive
)
2203 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
2204 ResourceDescriptor
->Flags
= CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
;
2208 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
2209 ResourceDescriptor
->Flags
= CM_RESOURCE_INTERRUPT_LATCHED
;
2212 ResourceDescriptor
->u
.Interrupt
.Level
= PortConfig
->BusInterruptLevel
;
2213 ResourceDescriptor
->u
.Interrupt
.Vector
= PortConfig
->BusInterruptVector
;
2214 ResourceDescriptor
->u
.Interrupt
.Affinity
= 0;
2216 ResourceDescriptor
++;
2220 /* Copy 2nd interrupt
2221 FIXME: Stupid code duplication, remove */
2224 ResourceDescriptor
->Type
= CmResourceTypeInterrupt
;
2226 if (PortConfig
->AdapterInterfaceType
== MicroChannel
||
2227 PortConfig
->InterruptMode
== LevelSensitive
)
2229 ResourceDescriptor
->ShareDisposition
= CmResourceShareShared
;
2230 ResourceDescriptor
->Flags
= CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE
;
2234 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
2235 ResourceDescriptor
->Flags
= CM_RESOURCE_INTERRUPT_LATCHED
;
2238 ResourceDescriptor
->u
.Interrupt
.Level
= PortConfig
->BusInterruptLevel
;
2239 ResourceDescriptor
->u
.Interrupt
.Vector
= PortConfig
->BusInterruptVector
;
2240 ResourceDescriptor
->u
.Interrupt
.Affinity
= 0;
2242 ResourceDescriptor
++;
2248 ResourceDescriptor
->Type
= CmResourceTypeDma
;
2249 ResourceDescriptor
->ShareDisposition
= CmResourceShareDeviceExclusive
;
2250 ResourceDescriptor
->u
.Dma
.Channel
= PortConfig
->DmaChannel
;
2251 ResourceDescriptor
->u
.Dma
.Port
= PortConfig
->DmaPort
;
2252 ResourceDescriptor
->Flags
= 0;
2254 if (PortConfig
->DmaChannel
== SP_UNINITIALIZED_VALUE
)
2255 ResourceDescriptor
->u
.Dma
.Channel
= 0;
2257 if (PortConfig
->DmaPort
== SP_UNINITIALIZED_VALUE
)
2258 ResourceDescriptor
->u
.Dma
.Port
= 0;
2261 return ResourceList
;
2266 SpiGetPciConfigData(IN PDRIVER_OBJECT DriverObject
,
2267 IN PDEVICE_OBJECT DeviceObject
,
2268 IN
struct _HW_INITIALIZATION_DATA
*HwInitializationData
,
2269 IN OUT PPORT_CONFIGURATION_INFORMATION PortConfig
,
2270 IN PUNICODE_STRING RegistryPath
,
2272 IN OUT PPCI_SLOT_NUMBER NextSlotNumber
)
2274 PCI_COMMON_CONFIG PciConfig
;
2275 PCI_SLOT_NUMBER SlotNumber
;
2278 ULONG FunctionNumber
;
2279 CHAR VendorIdString
[8];
2280 CHAR DeviceIdString
[8];
2281 UNICODE_STRING UnicodeStr
;
2282 PCM_RESOURCE_LIST ResourceList
;
2285 DPRINT ("SpiGetPciConfiguration() called\n");
2287 RtlZeroMemory(&ResourceList
, sizeof(PCM_RESOURCE_LIST
));
2288 SlotNumber
.u
.AsULONG
= 0;
2290 /* Loop through all devices */
2291 for (DeviceNumber
= NextSlotNumber
->u
.bits
.DeviceNumber
; DeviceNumber
< PCI_MAX_DEVICES
; DeviceNumber
++)
2293 SlotNumber
.u
.bits
.DeviceNumber
= DeviceNumber
;
2295 /* Loop through all functions */
2296 for (FunctionNumber
= NextSlotNumber
->u
.bits
.FunctionNumber
; FunctionNumber
< PCI_MAX_FUNCTION
; FunctionNumber
++)
2298 SlotNumber
.u
.bits
.FunctionNumber
= FunctionNumber
;
2300 /* Get PCI config bytes */
2301 DataSize
= HalGetBusData(PCIConfiguration
,
2303 SlotNumber
.u
.AsULONG
,
2307 /* If result of HalGetBusData is 0, then the bus is wrong */
2311 /* If result is PCI_INVALID_VENDORID, then this device has no more
2313 if (PciConfig
.VendorID
== PCI_INVALID_VENDORID
)
2316 sprintf (VendorIdString
, "%04hx", PciConfig
.VendorID
);
2317 sprintf (DeviceIdString
, "%04hx", PciConfig
.DeviceID
);
2319 if (_strnicmp(VendorIdString
, HwInitializationData
->VendorId
, HwInitializationData
->VendorIdLength
) ||
2320 _strnicmp(DeviceIdString
, HwInitializationData
->DeviceId
, HwInitializationData
->DeviceIdLength
))
2322 /* It is not our device */
2326 DPRINT("Found device 0x%04hx 0x%04hx at %1lu %2lu %1lu\n",
2330 SlotNumber
.u
.bits
.DeviceNumber
,
2331 SlotNumber
.u
.bits
.FunctionNumber
);
2334 RtlInitUnicodeString(&UnicodeStr
, L
"ScsiAdapter");
2335 Status
= HalAssignSlotResources(RegistryPath
,
2341 SlotNumber
.u
.AsULONG
,
2344 if (!NT_SUCCESS(Status
))
2347 /* Create configuration information */
2348 SpiResourceToConfig(HwInitializationData
,
2352 /* Free the resource list */
2353 ExFreePool(ResourceList
);
2355 /* Set dev & fn numbers */
2356 NextSlotNumber
->u
.bits
.DeviceNumber
= DeviceNumber
;
2357 NextSlotNumber
->u
.bits
.FunctionNumber
= FunctionNumber
+ 1;
2359 /* Save the slot number */
2360 PortConfig
->SlotNumber
= SlotNumber
.u
.AsULONG
;
2364 NextSlotNumber
->u
.bits
.FunctionNumber
= 0;
2367 NextSlotNumber
->u
.bits
.DeviceNumber
= 0;
2368 DPRINT ("No device found\n");
2375 /**********************************************************************
2377 * ScsiPortCreateClose
2380 * Answer requests for Create/Close calls: a null operation.
2387 * Pointer to a device object.
2390 * Pointer to an IRP.
2396 static NTSTATUS NTAPI
2397 ScsiPortCreateClose(IN PDEVICE_OBJECT DeviceObject
,
2400 DPRINT("ScsiPortCreateClose()\n");
2402 Irp
->IoStatus
.Status
= STATUS_SUCCESS
;
2403 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2405 return STATUS_SUCCESS
;
2409 SpiHandleAttachRelease(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
2412 PSCSI_LUN_INFO LunInfo
;
2413 PIO_STACK_LOCATION IrpStack
;
2414 PDEVICE_OBJECT DeviceObject
;
2415 PSCSI_REQUEST_BLOCK Srb
;
2418 /* Get pointer to the SRB */
2419 IrpStack
= IoGetCurrentIrpStackLocation(Irp
);
2420 Srb
= (PSCSI_REQUEST_BLOCK
)IrpStack
->Parameters
.Others
.Argument1
;
2422 /* Check if PathId matches number of buses */
2423 if (DeviceExtension
->BusesConfig
== NULL
||
2424 DeviceExtension
->BusesConfig
->NumberOfBuses
<= Srb
->PathId
)
2426 Srb
->SrbStatus
= SRB_STATUS_NO_DEVICE
;
2427 return STATUS_DEVICE_DOES_NOT_EXIST
;
2430 /* Get pointer to LunInfo */
2431 LunInfo
= DeviceExtension
->BusesConfig
->BusScanInfo
[Srb
->PathId
]->LunInfo
;
2433 /* Find matching LunInfo */
2436 if (LunInfo
->PathId
== Srb
->PathId
&&
2437 LunInfo
->TargetId
== Srb
->TargetId
&&
2438 LunInfo
->Lun
== Srb
->Lun
)
2443 LunInfo
= LunInfo
->Next
;
2446 /* If we couldn't find it - exit */
2447 if (LunInfo
== NULL
)
2448 return STATUS_DEVICE_DOES_NOT_EXIST
;
2452 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &Irql
);
2454 /* Release, if asked */
2455 if (Srb
->Function
== SRB_FUNCTION_RELEASE_DEVICE
)
2457 LunInfo
->DeviceClaimed
= FALSE
;
2458 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2459 Srb
->SrbStatus
= SRB_STATUS_SUCCESS
;
2461 return STATUS_SUCCESS
;
2464 /* Attach, if not already claimed */
2465 if (LunInfo
->DeviceClaimed
)
2467 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2468 Srb
->SrbStatus
= SRB_STATUS_BUSY
;
2470 return STATUS_DEVICE_BUSY
;
2473 /* Save the device object */
2474 DeviceObject
= LunInfo
->DeviceObject
;
2476 if (Srb
->Function
== SRB_FUNCTION_CLAIM_DEVICE
)
2477 LunInfo
->DeviceClaimed
= TRUE
;
2479 if (Srb
->Function
== SRB_FUNCTION_ATTACH_DEVICE
)
2480 LunInfo
->DeviceObject
= Srb
->DataBuffer
;
2482 Srb
->DataBuffer
= DeviceObject
;
2484 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2485 Srb
->SrbStatus
= SRB_STATUS_SUCCESS
;
2487 return STATUS_SUCCESS
;
2491 /**********************************************************************
2493 * ScsiPortDispatchScsi
2496 * Answer requests for SCSI calls
2502 * Standard dispatch arguments
2508 static NTSTATUS NTAPI
2509 ScsiPortDispatchScsi(IN PDEVICE_OBJECT DeviceObject
,
2512 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
2513 PSCSI_PORT_LUN_EXTENSION LunExtension
;
2514 PIO_STACK_LOCATION Stack
;
2515 PSCSI_REQUEST_BLOCK Srb
;
2517 NTSTATUS Status
= STATUS_SUCCESS
;
2518 PIRP NextIrp
, IrpList
;
2519 PKDEVICE_QUEUE_ENTRY Entry
;
2521 DPRINT("ScsiPortDispatchScsi(DeviceObject %p Irp %p)\n",
2524 DeviceExtension
= DeviceObject
->DeviceExtension
;
2525 Stack
= IoGetCurrentIrpStackLocation(Irp
);
2527 Srb
= Stack
->Parameters
.Scsi
.Srb
;
2530 DPRINT1("ScsiPortDispatchScsi() called with Srb = NULL!\n");
2531 Status
= STATUS_UNSUCCESSFUL
;
2533 Irp
->IoStatus
.Status
= Status
;
2534 Irp
->IoStatus
.Information
= 0;
2536 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2541 DPRINT("Srb: %p\n", Srb
);
2542 DPRINT("Srb->Function: %lu\n", Srb
->Function
);
2543 DPRINT("PathId: %lu TargetId: %lu Lun: %lu\n", Srb
->PathId
, Srb
->TargetId
, Srb
->Lun
);
2545 LunExtension
= SpiGetLunExtension(DeviceExtension
,
2549 if (LunExtension
== NULL
)
2551 DPRINT("ScsiPortDispatchScsi() called with an invalid LUN\n");
2552 Status
= STATUS_NO_SUCH_DEVICE
;
2554 Srb
->SrbStatus
= SRB_STATUS_NO_DEVICE
;
2555 Irp
->IoStatus
.Status
= Status
;
2556 Irp
->IoStatus
.Information
= 0;
2558 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2563 switch (Srb
->Function
)
2565 case SRB_FUNCTION_SHUTDOWN
:
2566 case SRB_FUNCTION_FLUSH
:
2567 DPRINT (" SRB_FUNCTION_SHUTDOWN or FLUSH\n");
2568 if (DeviceExtension
->CachesData
== FALSE
)
2570 /* All success here */
2571 Srb
->SrbStatus
= SRB_STATUS_SUCCESS
;
2572 Irp
->IoStatus
.Status
= STATUS_SUCCESS
;
2573 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2574 return STATUS_SUCCESS
;
2576 /* Fall through to a usual execute operation */
2578 case SRB_FUNCTION_EXECUTE_SCSI
:
2579 case SRB_FUNCTION_IO_CONTROL
:
2580 /* Mark IRP as pending in all cases */
2581 IoMarkIrpPending(Irp
);
2583 if (Srb
->SrbFlags
& SRB_FLAGS_BYPASS_FROZEN_QUEUE
)
2585 /* Start IO directly */
2586 IoStartPacket(DeviceObject
, Irp
, NULL
, NULL
);
2592 /* We need to be at DISPATCH_LEVEL */
2593 KeRaiseIrql (DISPATCH_LEVEL
, &oldIrql
);
2595 /* Insert IRP into the queue */
2596 if (!KeInsertByKeyDeviceQueue(&LunExtension
->DeviceQueue
,
2597 &Irp
->Tail
.Overlay
.DeviceQueueEntry
,
2600 /* It means the queue is empty, and we just start this request */
2601 IoStartPacket(DeviceObject
, Irp
, NULL
, NULL
);
2604 /* Back to the old IRQL */
2605 KeLowerIrql (oldIrql
);
2607 return STATUS_PENDING
;
2609 case SRB_FUNCTION_CLAIM_DEVICE
:
2610 case SRB_FUNCTION_ATTACH_DEVICE
:
2611 DPRINT (" SRB_FUNCTION_CLAIM_DEVICE or ATTACH\n");
2613 /* Reference device object and keep the device object */
2614 Status
= SpiHandleAttachRelease(DeviceExtension
, Irp
);
2617 case SRB_FUNCTION_RELEASE_DEVICE
:
2618 DPRINT (" SRB_FUNCTION_RELEASE_DEVICE\n");
2620 /* Dereference device object and clear the device object */
2621 Status
= SpiHandleAttachRelease(DeviceExtension
, Irp
);
2624 case SRB_FUNCTION_RELEASE_QUEUE
:
2625 DPRINT(" SRB_FUNCTION_RELEASE_QUEUE\n");
2627 /* Guard with the spinlock */
2628 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &Irql
);
2630 if (!(LunExtension
->Flags
& LUNEX_FROZEN_QUEUE
))
2632 DPRINT("Queue is not frozen really\n");
2634 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2635 Srb
->SrbStatus
= SRB_STATUS_SUCCESS
;
2636 Status
= STATUS_SUCCESS
;
2641 /* Unfreeze the queue */
2642 LunExtension
->Flags
&= ~LUNEX_FROZEN_QUEUE
;
2644 if (LunExtension
->SrbInfo
.Srb
== NULL
)
2646 /* Get next logical unit request */
2647 SpiGetNextRequestFromLun(DeviceExtension
, LunExtension
);
2649 /* SpiGetNextRequestFromLun() releases the spinlock */
2654 DPRINT("The queue has active request\n");
2655 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2659 Srb
->SrbStatus
= SRB_STATUS_SUCCESS
;
2660 Status
= STATUS_SUCCESS
;
2663 case SRB_FUNCTION_FLUSH_QUEUE
:
2664 DPRINT(" SRB_FUNCTION_FLUSH_QUEUE\n");
2666 /* Guard with the spinlock */
2667 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &Irql
);
2669 if (!(LunExtension
->Flags
& LUNEX_FROZEN_QUEUE
))
2671 DPRINT("Queue is not frozen really\n");
2673 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2674 Status
= STATUS_INVALID_DEVICE_REQUEST
;
2678 /* Make sure there is no active request */
2679 ASSERT(LunExtension
->SrbInfo
.Srb
== NULL
);
2681 /* Compile a list from the device queue */
2683 while ((Entry
= KeRemoveDeviceQueue(&LunExtension
->DeviceQueue
)) != NULL
)
2685 NextIrp
= CONTAINING_RECORD(Entry
, IRP
, Tail
.Overlay
.DeviceQueueEntry
);
2688 Stack
= IoGetCurrentIrpStackLocation(NextIrp
);
2689 Srb
= Stack
->Parameters
.Scsi
.Srb
;
2692 Srb
->SrbStatus
= SRB_STATUS_REQUEST_FLUSHED
;
2693 NextIrp
->IoStatus
.Status
= STATUS_UNSUCCESSFUL
;
2695 /* Add then to the list */
2696 NextIrp
->Tail
.Overlay
.ListEntry
.Flink
= (PLIST_ENTRY
)IrpList
;
2700 /* Unfreeze the queue */
2701 LunExtension
->Flags
&= ~LUNEX_FROZEN_QUEUE
;
2703 /* Release the spinlock */
2704 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
2706 /* Complete those requests */
2710 IrpList
= (PIRP
)NextIrp
->Tail
.Overlay
.ListEntry
.Flink
;
2712 IoCompleteRequest(NextIrp
, 0);
2715 Status
= STATUS_SUCCESS
;
2719 DPRINT1("SRB function not implemented (Function %lu)\n", Srb
->Function
);
2720 Status
= STATUS_NOT_IMPLEMENTED
;
2724 Irp
->IoStatus
.Status
= Status
;
2726 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2732 /**********************************************************************
2734 * ScsiPortDeviceControl
2737 * Answer requests for device control calls
2743 * Standard dispatch arguments
2749 static NTSTATUS NTAPI
2750 ScsiPortDeviceControl(IN PDEVICE_OBJECT DeviceObject
,
2753 PIO_STACK_LOCATION Stack
;
2754 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
2755 NTSTATUS Status
= STATUS_SUCCESS
;;
2757 DPRINT("ScsiPortDeviceControl()\n");
2759 Irp
->IoStatus
.Information
= 0;
2761 Stack
= IoGetCurrentIrpStackLocation(Irp
);
2762 DeviceExtension
= DeviceObject
->DeviceExtension
;
2764 switch (Stack
->Parameters
.DeviceIoControl
.IoControlCode
)
2766 case IOCTL_SCSI_GET_DUMP_POINTERS
:
2768 PDUMP_POINTERS DumpPointers
;
2769 DPRINT(" IOCTL_SCSI_GET_DUMP_POINTERS\n");
2770 DumpPointers
= (PDUMP_POINTERS
)Irp
->AssociatedIrp
.SystemBuffer
;
2771 DumpPointers
->DeviceObject
= DeviceObject
;
2773 Irp
->IoStatus
.Information
= sizeof(DUMP_POINTERS
);
2777 case IOCTL_SCSI_GET_CAPABILITIES
:
2778 DPRINT(" IOCTL_SCSI_GET_CAPABILITIES\n");
2779 if (Stack
->Parameters
.DeviceIoControl
.OutputBufferLength
== sizeof(PVOID
))
2781 *((PVOID
*)Irp
->AssociatedIrp
.SystemBuffer
) = &DeviceExtension
->PortCapabilities
;
2783 Irp
->IoStatus
.Information
= sizeof(PVOID
);
2784 Status
= STATUS_SUCCESS
;
2788 if (Stack
->Parameters
.DeviceIoControl
.OutputBufferLength
< sizeof(IO_SCSI_CAPABILITIES
))
2790 Status
= STATUS_BUFFER_TOO_SMALL
;
2794 RtlCopyMemory(Irp
->AssociatedIrp
.SystemBuffer
,
2795 &DeviceExtension
->PortCapabilities
,
2796 sizeof(IO_SCSI_CAPABILITIES
));
2798 Irp
->IoStatus
.Information
= sizeof(IO_SCSI_CAPABILITIES
);
2799 Status
= STATUS_SUCCESS
;
2802 case IOCTL_SCSI_GET_INQUIRY_DATA
:
2803 DPRINT(" IOCTL_SCSI_GET_INQUIRY_DATA\n");
2805 /* Copy inquiry data to the port device extension */
2806 Status
= SpiGetInquiryData(DeviceExtension
, Irp
);
2810 DPRINT1(" unknown ioctl code: 0x%lX\n",
2811 Stack
->Parameters
.DeviceIoControl
.IoControlCode
);
2815 /* Complete the request with the given status */
2816 Irp
->IoStatus
.Status
= Status
;
2817 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2824 ScsiPortStartIo(IN PDEVICE_OBJECT DeviceObject
,
2827 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
2828 PSCSI_PORT_LUN_EXTENSION LunExtension
;
2829 PIO_STACK_LOCATION IrpStack
;
2830 PSCSI_REQUEST_BLOCK Srb
;
2831 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
2835 DPRINT("ScsiPortStartIo() called!\n");
2837 DeviceExtension
= DeviceObject
->DeviceExtension
;
2838 IrpStack
= IoGetCurrentIrpStackLocation(Irp
);
2840 DPRINT("DeviceExtension %p\n", DeviceExtension
);
2842 Srb
= IrpStack
->Parameters
.Scsi
.Srb
;
2844 /* Apply "default" flags */
2845 Srb
->SrbFlags
|= DeviceExtension
->SrbFlags
;
2847 /* Get LUN extension */
2848 LunExtension
= SpiGetLunExtension(DeviceExtension
,
2853 if (DeviceExtension
->NeedSrbDataAlloc
||
2854 DeviceExtension
->NeedSrbExtensionAlloc
)
2857 SrbInfo
= SpiAllocateSrbStructures(DeviceExtension
,
2861 /* Couldn't alloc one or both data structures, return */
2862 if (SrbInfo
== NULL
)
2864 /* We have to call IoStartNextPacket, because this request
2866 if (LunExtension
->Flags
& LUNEX_REQUEST_PENDING
)
2867 IoStartNextPacket(DeviceObject
, FALSE
);
2874 /* No allocations are needed */
2875 SrbInfo
= &LunExtension
->SrbInfo
;
2876 Srb
->SrbExtension
= NULL
;
2877 Srb
->QueueTag
= SP_UNTAGGED
;
2880 /* Increase sequence number of SRB */
2881 if (!SrbInfo
->SequenceNumber
)
2883 /* Increase global sequence number */
2884 DeviceExtension
->SequenceNumber
++;
2887 SrbInfo
->SequenceNumber
= DeviceExtension
->SequenceNumber
;
2890 /* Check some special SRBs */
2891 if (Srb
->Function
== SRB_FUNCTION_ABORT_COMMAND
)
2893 /* Some special handling */
2894 DPRINT1("Abort command! Unimplemented now\n");
2901 if (Srb
->SrbFlags
& SRB_FLAGS_UNSPECIFIED_DIRECTION
)
2903 // Store the MDL virtual address in SrbInfo structure
2904 SrbInfo
->DataOffset
= MmGetMdlVirtualAddress(Irp
->MdlAddress
);
2906 if (DeviceExtension
->MapBuffers
)
2908 /* Calculate offset within DataBuffer */
2909 SrbInfo
->DataOffset
= MmGetSystemAddressForMdl(Irp
->MdlAddress
);
2910 Srb
->DataBuffer
= SrbInfo
->DataOffset
+
2911 (ULONG
)((PUCHAR
)Srb
->DataBuffer
-
2912 (PUCHAR
)MmGetMdlVirtualAddress(Irp
->MdlAddress
));
2915 if (DeviceExtension
->AdapterObject
)
2918 KeFlushIoBuffers(Irp
->MdlAddress
,
2919 Srb
->SrbFlags
& SRB_FLAGS_DATA_IN
? TRUE
: FALSE
,
2923 if (DeviceExtension
->MapRegisters
)
2925 /* Calculate number of needed map registers */
2926 SrbInfo
->NumberOfMapRegisters
= ADDRESS_AND_SIZE_TO_SPAN_PAGES(
2928 Srb
->DataTransferLength
);
2930 /* Allocate adapter channel */
2931 Status
= IoAllocateAdapterChannel(DeviceExtension
->AdapterObject
,
2932 DeviceExtension
->DeviceObject
,
2933 SrbInfo
->NumberOfMapRegisters
,
2937 if (!NT_SUCCESS(Status
))
2939 DPRINT1("IoAllocateAdapterChannel() failed!\n");
2941 Srb
->SrbStatus
= SRB_STATUS_INVALID_REQUEST
;
2942 ScsiPortNotification(RequestComplete
,
2943 DeviceExtension
+ 1,
2946 ScsiPortNotification(NextRequest
,
2947 DeviceExtension
+ 1);
2949 /* Request DPC for that work */
2950 IoRequestDpc(DeviceExtension
->DeviceObject
, NULL
, NULL
);
2953 /* Control goes to SpiAdapterControl */
2958 /* Increase active request counter */
2959 CounterResult
= InterlockedIncrement(&DeviceExtension
->ActiveRequestCounter
);
2961 if (CounterResult
== 0 &&
2962 DeviceExtension
->AdapterObject
!= NULL
&&
2963 !DeviceExtension
->MapRegisters
)
2965 IoAllocateAdapterChannel(
2966 DeviceExtension
->AdapterObject
,
2968 DeviceExtension
->PortCapabilities
.MaximumPhysicalPages
,
2969 ScsiPortAllocateAdapterChannel
,
2976 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
2978 if (!KeSynchronizeExecution(DeviceExtension
->Interrupt
,
2979 ScsiPortStartPacket
,
2982 DPRINT("Synchronization failed!\n");
2984 Irp
->IoStatus
.Status
= STATUS_UNSUCCESSFUL
;
2985 Irp
->IoStatus
.Information
= 0;
2986 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
2988 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
2992 /* Release the spinlock only */
2993 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
2997 DPRINT("ScsiPortStartIo() done\n");
3001 static BOOLEAN NTAPI
3002 ScsiPortStartPacket(IN OUT PVOID Context
)
3004 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
3005 PIO_STACK_LOCATION IrpStack
;
3006 PSCSI_REQUEST_BLOCK Srb
;
3007 PDEVICE_OBJECT DeviceObject
= (PDEVICE_OBJECT
)Context
;
3008 PSCSI_PORT_LUN_EXTENSION LunExtension
;
3009 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
3013 DPRINT("ScsiPortStartPacket() called\n");
3015 DeviceExtension
= (PSCSI_PORT_DEVICE_EXTENSION
)DeviceObject
->DeviceExtension
;
3017 IrpStack
= IoGetCurrentIrpStackLocation(DeviceObject
->CurrentIrp
);
3018 Srb
= IrpStack
->Parameters
.Scsi
.Srb
;
3020 /* Get LUN extension */
3021 LunExtension
= SpiGetLunExtension(DeviceExtension
,
3026 /* Check if we are in a reset state */
3027 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_RESET
)
3029 /* Mark the we've got requests while being in the reset state */
3030 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_RESET_REQUEST
;
3034 /* Set the time out value */
3035 DeviceExtension
->TimerCount
= Srb
->TimeOutValue
;
3038 DeviceExtension
->Flags
|= SCSI_PORT_DEVICE_BUSY
;
3040 if (LunExtension
->RequestTimeout
!= -1)
3042 /* Timer already active */
3047 /* It hasn't been initialized yet */
3048 LunExtension
->RequestTimeout
= Srb
->TimeOutValue
;
3052 if (Srb
->SrbFlags
& SRB_FLAGS_BYPASS_FROZEN_QUEUE
)
3054 /* Handle bypass-requests */
3056 /* Is this an abort request? */
3057 if (Srb
->Function
== SRB_FUNCTION_ABORT_COMMAND
)
3059 /* Get pointer to SRB info structure */
3060 SrbInfo
= SpiGetSrbData(DeviceExtension
,
3066 /* Check if the request is still "active" */
3067 if (SrbInfo
== NULL
||
3068 SrbInfo
->Srb
== NULL
||
3069 !(SrbInfo
->Srb
->SrbFlags
& SRB_FLAGS_IS_ACTIVE
))
3071 /* It's not, mark it as active then */
3072 Srb
->SrbFlags
|= SRB_FLAGS_IS_ACTIVE
;
3075 LunExtension
->RequestTimeout
= -1;
3077 DPRINT("Request has been already completed, but abort request came\n");
3078 Srb
->SrbStatus
= SRB_STATUS_ABORT_FAILED
;
3080 /* Notify about request complete */
3081 ScsiPortNotification(RequestComplete
,
3082 DeviceExtension
->MiniPortDeviceExtension
,
3085 /* and about readiness for the next request */
3086 ScsiPortNotification(NextRequest
,
3087 DeviceExtension
->MiniPortDeviceExtension
);
3089 /* They might ask for some work, so queue the DPC for them */
3090 IoRequestDpc(DeviceExtension
->DeviceObject
, NULL
, NULL
);
3092 /* We're done in this branch */
3098 /* Add number of queued requests */
3099 LunExtension
->QueueCount
++;
3102 /* Bypass requests don't need request sense */
3103 LunExtension
->Flags
&= ~LUNEX_NEED_REQUEST_SENSE
;
3105 /* Is disconnect disabled for this request? */
3106 if (Srb
->SrbFlags
& SRB_FLAGS_DISABLE_DISCONNECT
)
3108 /* Set the corresponding flag */
3109 DeviceExtension
->Flags
&= ~SCSI_PORT_DISCONNECT_ALLOWED
;
3112 /* Transfer timeout value from Srb to Lun */
3113 LunExtension
->RequestTimeout
= Srb
->TimeOutValue
;
3117 if (Srb
->SrbFlags
& SRB_FLAGS_DISABLE_DISCONNECT
)
3119 /* It's a disconnect, so no more requests can go */
3120 DeviceExtension
->Flags
&= ~SCSI_PORT_DISCONNECT_ALLOWED
;
3123 LunExtension
->Flags
|= SCSI_PORT_LU_ACTIVE
;
3125 /* Increment queue count */
3126 LunExtension
->QueueCount
++;
3128 /* If it's tagged - special thing */
3129 if (Srb
->QueueTag
!= SP_UNTAGGED
)
3131 SrbInfo
= &DeviceExtension
->SrbInfo
[Srb
->QueueTag
- 1];
3133 /* Chek for consistency */
3134 ASSERT(SrbInfo
->Requests
.Blink
== NULL
);
3136 /* Insert it into the list of requests */
3137 InsertTailList(&LunExtension
->SrbInfo
.Requests
, &SrbInfo
->Requests
);
3141 /* Mark this Srb active */
3142 Srb
->SrbFlags
|= SRB_FLAGS_IS_ACTIVE
;
3144 /* Call HwStartIo routine */
3145 Result
= DeviceExtension
->HwStartIo(&DeviceExtension
->MiniPortDeviceExtension
,
3148 /* If notification is needed, then request a DPC */
3149 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
3150 IoRequestDpc(DeviceExtension
->DeviceObject
, NULL
, NULL
);
3155 IO_ALLOCATION_ACTION
3157 SpiAdapterControl(PDEVICE_OBJECT DeviceObject
,
3159 PVOID MapRegisterBase
,
3162 PSCSI_REQUEST_BLOCK Srb
;
3163 PSCSI_SG_ADDRESS ScatterGatherList
;
3165 PIO_STACK_LOCATION IrpStack
;
3166 ULONG TotalLength
= 0;
3167 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
3168 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
3170 BOOLEAN WriteToDevice
;
3172 /* Get pointers to SrbInfo and DeviceExtension */
3173 SrbInfo
= (PSCSI_REQUEST_BLOCK_INFO
)Context
;
3174 DeviceExtension
= DeviceObject
->DeviceExtension
;
3176 /* Get pointer to SRB */
3177 IrpStack
= IoGetCurrentIrpStackLocation(Irp
);
3178 Srb
= (PSCSI_REQUEST_BLOCK
)IrpStack
->Parameters
.Others
.Argument1
;
3180 /* Depending on the map registers number, we allocate
3181 either from NonPagedPool, or from our static list */
3182 if (SrbInfo
->NumberOfMapRegisters
> MAX_SG_LIST
)
3184 SrbInfo
->ScatterGather
= ExAllocatePoolWithTag(
3185 NonPagedPool
, SrbInfo
->NumberOfMapRegisters
* sizeof(SCSI_SG_ADDRESS
), TAG_SCSIPORT
);
3187 if (SrbInfo
->ScatterGather
== NULL
)
3190 Srb
->SrbFlags
|= SRB_FLAGS_SGLIST_FROM_POOL
;
3194 SrbInfo
->ScatterGather
= SrbInfo
->ScatterGatherList
;
3197 /* Use chosen SG list source */
3198 ScatterGatherList
= SrbInfo
->ScatterGather
;
3200 /* Save map registers base */
3201 SrbInfo
->BaseOfMapRegister
= MapRegisterBase
;
3203 /* Determine WriteToDevice flag */
3204 WriteToDevice
= Srb
->SrbFlags
& SRB_FLAGS_DATA_OUT
? TRUE
: FALSE
;
3206 /* Get virtual address of the data buffer */
3207 DataVA
= (PUCHAR
)MmGetMdlVirtualAddress(Irp
->MdlAddress
) +
3208 ((PCHAR
)Srb
->DataBuffer
- SrbInfo
->DataOffset
);
3210 /* Build the actual SG list */
3211 while (TotalLength
< Srb
->DataTransferLength
)
3213 if (!ScatterGatherList
)
3216 ScatterGatherList
->Length
= Srb
->DataTransferLength
- TotalLength
;
3217 ScatterGatherList
->PhysicalAddress
= IoMapTransfer(NULL
,
3220 DataVA
+ TotalLength
,
3221 &ScatterGatherList
->Length
,
3224 TotalLength
+= ScatterGatherList
->Length
;
3225 ScatterGatherList
++;
3228 /* Schedule an active request */
3229 InterlockedIncrement(&DeviceExtension
->ActiveRequestCounter
);
3230 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &CurrentIrql
);
3231 KeSynchronizeExecution(DeviceExtension
->Interrupt
,
3232 ScsiPortStartPacket
,
3234 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, CurrentIrql
);
3236 return DeallocateObjectKeepRegisters
;
3239 static PSCSI_PORT_LUN_EXTENSION
3240 SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
)
3242 PSCSI_PORT_LUN_EXTENSION LunExtension
;
3243 ULONG LunExtensionSize
;
3245 DPRINT("SpiAllocateLunExtension (%p)\n",
3248 /* Round LunExtensionSize first to the sizeof LONGLONG */
3249 LunExtensionSize
= (DeviceExtension
->LunExtensionSize
+
3250 sizeof(LONGLONG
) - 1) & ~(sizeof(LONGLONG
) - 1);
3252 LunExtensionSize
+= sizeof(SCSI_PORT_LUN_EXTENSION
);
3253 DPRINT("LunExtensionSize %lu\n", LunExtensionSize
);
3255 LunExtension
= ExAllocatePoolWithTag(NonPagedPool
, LunExtensionSize
, TAG_SCSIPORT
);
3256 if (LunExtension
== NULL
)
3258 DPRINT1("Out of resources!\n");
3262 /* Zero everything */
3263 RtlZeroMemory(LunExtension
, LunExtensionSize
);
3265 /* Initialize a list of requests */
3266 InitializeListHead(&LunExtension
->SrbInfo
.Requests
);
3268 /* Initialize timeout counter */
3269 LunExtension
->RequestTimeout
= -1;
3271 /* Set maximum queue size */
3272 LunExtension
->MaxQueueCount
= 256;
3274 /* Initialize request queue */
3275 KeInitializeDeviceQueue (&LunExtension
->DeviceQueue
);
3277 return LunExtension
;
3280 static PSCSI_PORT_LUN_EXTENSION
3281 SpiGetLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
3286 PSCSI_PORT_LUN_EXTENSION LunExtension
;
3288 DPRINT("SpiGetLunExtension(%p %u %u %u) called\n",
3289 DeviceExtension
, PathId
, TargetId
, Lun
);
3291 /* Get appropriate list */
3292 LunExtension
= DeviceExtension
->LunExtensionList
[(TargetId
+ Lun
) % LUS_NUMBER
];
3294 /* Iterate it until we find what we need */
3295 while (LunExtension
)
3297 if (LunExtension
->TargetId
== TargetId
&&
3298 LunExtension
->Lun
== Lun
&&
3299 LunExtension
->PathId
== PathId
)
3301 /* All matches, return */
3302 return LunExtension
;
3305 /* Advance to the next item */
3306 LunExtension
= LunExtension
->Next
;
3309 /* We did not find anything */
3310 DPRINT("Nothing found\n");
3314 static PSCSI_REQUEST_BLOCK_INFO
3315 SpiAllocateSrbStructures(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
3316 PSCSI_PORT_LUN_EXTENSION LunExtension
,
3317 PSCSI_REQUEST_BLOCK Srb
)
3320 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
3322 /* Spinlock must be held while this function executes */
3323 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
3325 /* Allocate SRB data structure */
3326 if (DeviceExtension
->NeedSrbDataAlloc
)
3328 /* Treat the abort request in a special way */
3329 if (Srb
->Function
== SRB_FUNCTION_ABORT_COMMAND
)
3331 SrbInfo
= SpiGetSrbData(DeviceExtension
,
3337 else if (Srb
->SrbFlags
&
3338 (SRB_FLAGS_QUEUE_ACTION_ENABLE
| SRB_FLAGS_NO_QUEUE_FREEZE
) &&
3339 !(Srb
->SrbFlags
& SRB_FLAGS_DISABLE_DISCONNECT
)
3342 /* Do not process tagged commands if need request sense is set */
3343 if (LunExtension
->Flags
& LUNEX_NEED_REQUEST_SENSE
)
3345 ASSERT(!(LunExtension
->Flags
& LUNEX_REQUEST_PENDING
));
3347 LunExtension
->PendingRequest
= Srb
->OriginalRequest
;
3348 LunExtension
->Flags
|= LUNEX_REQUEST_PENDING
| SCSI_PORT_LU_ACTIVE
;
3350 /* Relese the spinlock and return */
3351 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3355 ASSERT(LunExtension
->SrbInfo
.Srb
== NULL
);
3356 SrbInfo
= DeviceExtension
->FreeSrbInfo
;
3358 if (SrbInfo
== NULL
)
3360 /* No SRB structures left in the list. We have to leave
3361 and wait while we are called again */
3363 DeviceExtension
->Flags
|= SCSI_PORT_REQUEST_PENDING
;
3364 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3368 DeviceExtension
->FreeSrbInfo
= (PSCSI_REQUEST_BLOCK_INFO
)SrbInfo
->Requests
.Flink
;
3370 /* QueueTag must never be 0, so +1 to it */
3371 Srb
->QueueTag
= (UCHAR
)(SrbInfo
- DeviceExtension
->SrbInfo
) + 1;
3375 /* Usual untagged command */
3377 (!IsListEmpty(&LunExtension
->SrbInfo
.Requests
) ||
3378 LunExtension
->Flags
& LUNEX_NEED_REQUEST_SENSE
) &&
3379 !(Srb
->SrbFlags
& SRB_FLAGS_BYPASS_FROZEN_QUEUE
)
3382 /* Mark it as pending and leave */
3383 ASSERT(!(LunExtension
->Flags
& LUNEX_REQUEST_PENDING
));
3384 LunExtension
->Flags
|= LUNEX_REQUEST_PENDING
| SCSI_PORT_LU_ACTIVE
;
3385 LunExtension
->PendingRequest
= Srb
->OriginalRequest
;
3387 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3391 Srb
->QueueTag
= SP_UNTAGGED
;
3392 SrbInfo
= &LunExtension
->SrbInfo
;
3397 Srb
->QueueTag
= SP_UNTAGGED
;
3398 SrbInfo
= &LunExtension
->SrbInfo
;
3401 /* Allocate SRB extension structure */
3402 if (DeviceExtension
->NeedSrbExtensionAlloc
)
3404 /* Check the list of free extensions */
3405 SrbExtension
= DeviceExtension
->FreeSrbExtensions
;
3407 /* If no free extensions... */
3408 if (SrbExtension
== NULL
)
3411 if (Srb
->Function
!= SRB_FUNCTION_ABORT_COMMAND
&&
3412 Srb
->QueueTag
!= SP_UNTAGGED
)
3414 SrbInfo
->Requests
.Blink
= NULL
;
3415 SrbInfo
->Requests
.Flink
= (PLIST_ENTRY
)DeviceExtension
->FreeSrbInfo
;
3416 DeviceExtension
->FreeSrbInfo
= SrbInfo
;
3419 /* Return, in order to be called again later */
3420 DeviceExtension
->Flags
|= SCSI_PORT_REQUEST_PENDING
;
3421 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3425 /* Remove that free SRB extension from the list (since
3426 we're going to use it) */
3427 DeviceExtension
->FreeSrbExtensions
= *((PVOID
*)SrbExtension
);
3429 /* Spinlock can be released now */
3430 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3432 Srb
->SrbExtension
= SrbExtension
;
3434 if (Srb
->SenseInfoBuffer
!= NULL
&&
3435 DeviceExtension
->SupportsAutoSense
)
3437 /* Store pointer to the SenseInfo buffer */
3438 SrbInfo
->SaveSenseRequest
= Srb
->SenseInfoBuffer
;
3440 /* Does data fit the buffer? */
3441 if (Srb
->SenseInfoBufferLength
> sizeof(SENSE_DATA
))
3443 /* No, disabling autosense at all */
3444 Srb
->SrbFlags
|= SRB_FLAGS_DISABLE_AUTOSENSE
;
3448 /* Yes, update the buffer pointer */
3449 Srb
->SenseInfoBuffer
= SrbExtension
+ DeviceExtension
->SrbExtensionSize
;
3456 Srb
->SrbExtension
= NULL
;
3457 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
3465 SpiSendInquiry (IN PDEVICE_OBJECT DeviceObject
,
3466 IN PSCSI_LUN_INFO LunInfo
)
3468 IO_STATUS_BLOCK IoStatusBlock
;
3469 PIO_STACK_LOCATION IrpStack
;
3474 PINQUIRYDATA InquiryBuffer
;
3475 PSENSE_DATA SenseBuffer
;
3476 BOOLEAN KeepTrying
= TRUE
;
3477 ULONG RetryCount
= 0;
3478 SCSI_REQUEST_BLOCK Srb
;
3480 PSCSI_PORT_LUN_EXTENSION LunExtension
;
3481 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
3483 DPRINT ("SpiSendInquiry() called\n");
3485 DeviceExtension
= (PSCSI_PORT_DEVICE_EXTENSION
)DeviceObject
->DeviceExtension
;
3487 InquiryBuffer
= ExAllocatePoolWithTag (NonPagedPool
, INQUIRYDATABUFFERSIZE
, TAG_SCSIPORT
);
3488 if (InquiryBuffer
== NULL
)
3489 return STATUS_INSUFFICIENT_RESOURCES
;
3491 SenseBuffer
= ExAllocatePoolWithTag (NonPagedPool
, SENSE_BUFFER_SIZE
, TAG_SCSIPORT
);
3492 if (SenseBuffer
== NULL
)
3494 ExFreePool(InquiryBuffer
);
3495 return STATUS_INSUFFICIENT_RESOURCES
;
3500 /* Initialize event for waiting */
3501 KeInitializeEvent(&Event
,
3506 Irp
= IoBuildDeviceIoControlRequest(IOCTL_SCSI_EXECUTE_IN
,
3511 INQUIRYDATABUFFERSIZE
,
3517 DPRINT("IoBuildDeviceIoControlRequest() failed\n");
3518 return STATUS_INSUFFICIENT_RESOURCES
;
3522 RtlZeroMemory(&Srb
, sizeof(SCSI_REQUEST_BLOCK
));
3524 Srb
.Length
= sizeof(SCSI_REQUEST_BLOCK
);
3525 Srb
.OriginalRequest
= Irp
;
3526 Srb
.PathId
= LunInfo
->PathId
;
3527 Srb
.TargetId
= LunInfo
->TargetId
;
3528 Srb
.Lun
= LunInfo
->Lun
;
3529 Srb
.Function
= SRB_FUNCTION_EXECUTE_SCSI
;
3530 Srb
.SrbFlags
= SRB_FLAGS_DATA_IN
| SRB_FLAGS_DISABLE_SYNCH_TRANSFER
;
3531 Srb
.TimeOutValue
= 4;
3534 Srb
.SenseInfoBuffer
= SenseBuffer
;
3535 Srb
.SenseInfoBufferLength
= SENSE_BUFFER_SIZE
;
3537 Srb
.DataBuffer
= InquiryBuffer
;
3538 Srb
.DataTransferLength
= INQUIRYDATABUFFERSIZE
;
3540 /* Attach Srb to the Irp */
3541 IrpStack
= IoGetNextIrpStackLocation (Irp
);
3542 IrpStack
->Parameters
.Scsi
.Srb
= &Srb
;
3545 Cdb
= (PCDB
)Srb
.Cdb
;
3546 Cdb
->CDB6INQUIRY
.OperationCode
= SCSIOP_INQUIRY
;
3547 Cdb
->CDB6INQUIRY
.LogicalUnitNumber
= LunInfo
->Lun
;
3548 Cdb
->CDB6INQUIRY
.AllocationLength
= INQUIRYDATABUFFERSIZE
;
3550 /* Call the driver */
3551 Status
= IoCallDriver(DeviceObject
, Irp
);
3553 /* Wait for it to complete */
3554 if (Status
== STATUS_PENDING
)
3556 DPRINT("SpiSendInquiry(): Waiting for the driver to process request...\n");
3557 KeWaitForSingleObject(&Event
,
3562 Status
= IoStatusBlock
.Status
;
3565 DPRINT("SpiSendInquiry(): Request processed by driver, status = 0x%08X\n", Status
);
3567 if (SRB_STATUS(Srb
.SrbStatus
) == SRB_STATUS_SUCCESS
)
3569 /* All fine, copy data over */
3570 RtlCopyMemory(LunInfo
->InquiryData
,
3572 INQUIRYDATABUFFERSIZE
);
3574 Status
= STATUS_SUCCESS
;
3579 DPRINT("Inquiry SRB failed with SrbStatus 0x%08X\n", Srb
.SrbStatus
);
3580 /* Check if the queue is frozen */
3581 if (Srb
.SrbStatus
& SRB_STATUS_QUEUE_FROZEN
)
3583 /* Something weird happened, deal with it (unfreeze the queue) */
3586 DPRINT("SpiSendInquiry(): the queue is frozen at TargetId %d\n", Srb
.TargetId
);
3588 LunExtension
= SpiGetLunExtension(DeviceExtension
,
3593 /* Clear frozen flag */
3594 LunExtension
->Flags
&= ~LUNEX_FROZEN_QUEUE
;
3596 /* Acquire the spinlock */
3597 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &Irql
);
3599 /* Process the request */
3600 SpiGetNextRequestFromLun(DeviceObject
->DeviceExtension
, LunExtension
);
3602 /* SpiGetNextRequestFromLun() releases the spinlock,
3603 so we just lower irql back to what it was before */
3607 /* Check if data overrun happened */
3608 if (SRB_STATUS(Srb
.SrbStatus
) == SRB_STATUS_DATA_OVERRUN
)
3610 DPRINT("Data overrun at TargetId %d\n", LunInfo
->TargetId
);
3611 /* Nothing dramatic, just copy data, but limiting the size */
3612 RtlCopyMemory(LunInfo
->InquiryData
,
3614 (Srb
.DataTransferLength
> INQUIRYDATABUFFERSIZE
) ?
3615 INQUIRYDATABUFFERSIZE
: Srb
.DataTransferLength
);
3617 Status
= STATUS_SUCCESS
;
3620 else if ((Srb
.SrbStatus
& SRB_STATUS_AUTOSENSE_VALID
) &&
3621 SenseBuffer
->SenseKey
== SCSI_SENSE_ILLEGAL_REQUEST
)
3623 /* LUN is not valid, but some device responds there.
3624 Mark it as invalid anyway */
3626 Status
= STATUS_INVALID_DEVICE_REQUEST
;
3631 /* Retry a couple of times if no timeout happened */
3632 if ((RetryCount
< 2) &&
3633 (SRB_STATUS(Srb
.SrbStatus
) != SRB_STATUS_NO_DEVICE
) &&
3634 (SRB_STATUS(Srb
.SrbStatus
) != SRB_STATUS_SELECTION_TIMEOUT
))
3641 /* That's all, go to exit */
3644 /* Set status according to SRB status */
3645 if (SRB_STATUS(Srb
.SrbStatus
) == SRB_STATUS_BAD_FUNCTION
||
3646 SRB_STATUS(Srb
.SrbStatus
) == SRB_STATUS_BAD_SRB_BLOCK_LENGTH
)
3648 Status
= STATUS_INVALID_DEVICE_REQUEST
;
3652 Status
= STATUS_IO_DEVICE_ERROR
;
3660 ExFreePool(InquiryBuffer
);
3661 ExFreePool(SenseBuffer
);
3663 DPRINT("SpiSendInquiry() done with Status 0x%08X\n", Status
);
3669 /* Scans all SCSI buses */
3671 SpiScanAdapter(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
)
3673 PSCSI_PORT_LUN_EXTENSION LunExtension
;
3677 PSCSI_BUS_SCAN_INFO BusScanInfo
;
3678 PSCSI_LUN_INFO LastLunInfo
, LunInfo
, LunInfoExists
;
3679 BOOLEAN DeviceExists
;
3684 DPRINT("SpiScanAdapter() called\n");
3686 /* Scan all buses */
3687 for (Bus
= 0; Bus
< DeviceExtension
->BusNum
; Bus
++)
3689 DPRINT(" Scanning bus %d\n", Bus
);
3692 /* Get pointer to the scan information */
3693 BusScanInfo
= DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
];
3697 /* Find the last LUN info in the list */
3698 LunInfo
= DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->LunInfo
;
3699 LastLunInfo
= LunInfo
;
3701 while (LunInfo
!= NULL
)
3703 LastLunInfo
= LunInfo
;
3704 LunInfo
= LunInfo
->Next
;
3709 /* We need to allocate this buffer */
3710 BusScanInfo
= ExAllocatePoolWithTag(NonPagedPool
, sizeof(SCSI_BUS_SCAN_INFO
), TAG_SCSIPORT
);
3714 DPRINT1("Out of resources!\n");
3718 /* Store the pointer in the BusScanInfo array */
3719 DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
] = BusScanInfo
;
3721 /* Fill this struct (length and bus ids for now) */
3722 BusScanInfo
->Length
= sizeof(SCSI_BUS_SCAN_INFO
);
3723 BusScanInfo
->LogicalUnitsCount
= 0;
3724 BusScanInfo
->BusIdentifier
= DeviceExtension
->PortConfig
->InitiatorBusId
[Bus
];
3725 BusScanInfo
->LunInfo
= NULL
;
3727 /* Set pointer to the last LUN info to NULL */
3731 /* Create LUN information structure */
3732 LunInfo
= ExAllocatePoolWithTag(PagedPool
, sizeof(SCSI_LUN_INFO
), TAG_SCSIPORT
);
3734 if (LunInfo
== NULL
)
3736 DPRINT1("Out of resources!\n");
3740 RtlZeroMemory(LunInfo
, sizeof(SCSI_LUN_INFO
));
3742 /* Create LunExtension */
3743 LunExtension
= SpiAllocateLunExtension (DeviceExtension
);
3745 /* And send INQUIRY to every target */
3746 for (Target
= 0; Target
< DeviceExtension
->PortConfig
->MaximumNumberOfTargets
; Target
++)
3748 /* TODO: Support scan bottom-up */
3750 /* Skip if it's the same address */
3751 if (Target
== BusScanInfo
->BusIdentifier
)
3754 /* Try to find an existing device here */
3755 DeviceExists
= FALSE
;
3756 LunInfoExists
= BusScanInfo
->LunInfo
;
3758 /* Find matching address on this bus */
3759 while (LunInfoExists
)
3761 if (LunInfoExists
->TargetId
== Target
)
3763 DeviceExists
= TRUE
;
3767 /* Advance to the next one */
3768 LunInfoExists
= LunInfoExists
->Next
;
3771 /* No need to bother rescanning, since we already did that before */
3775 /* Scan all logical units */
3776 for (Lun
= 0; Lun
< SCSI_MAXIMUM_LOGICAL_UNITS
; Lun
++)
3778 if ((!LunExtension
) || (!LunInfo
))
3781 /* Add extension to the list */
3782 Hint
= (Target
+ Lun
) % LUS_NUMBER
;
3783 LunExtension
->Next
= DeviceExtension
->LunExtensionList
[Hint
];
3784 DeviceExtension
->LunExtensionList
[Hint
] = LunExtension
;
3786 /* Fill Path, Target, Lun fields */
3787 LunExtension
->PathId
= LunInfo
->PathId
= (UCHAR
)Bus
;
3788 LunExtension
->TargetId
= LunInfo
->TargetId
= (UCHAR
) Target
;
3789 LunExtension
->Lun
= LunInfo
->Lun
= (UCHAR
)Lun
;
3791 /* Set flag to prevent race conditions */
3792 LunExtension
->Flags
|= SCSI_PORT_SCAN_IN_PROGRESS
;
3794 /* Zero LU extension contents */
3795 if (DeviceExtension
->LunExtensionSize
)
3797 RtlZeroMemory(LunExtension
+ 1,
3798 DeviceExtension
->LunExtensionSize
);
3801 /* Finally send the inquiry command */
3802 Status
= SpiSendInquiry(DeviceExtension
->DeviceObject
, LunInfo
);
3804 if (NT_SUCCESS(Status
))
3806 /* Let's see if we really found a device */
3807 PINQUIRYDATA InquiryData
= (PINQUIRYDATA
)LunInfo
->InquiryData
;
3809 /* Check if this device is unsupported */
3810 if (InquiryData
->DeviceTypeQualifier
== DEVICE_QUALIFIER_NOT_SUPPORTED
)
3812 DeviceExtension
->LunExtensionList
[Hint
] =
3813 DeviceExtension
->LunExtensionList
[Hint
]->Next
;
3818 /* Clear the "in scan" flag */
3819 LunExtension
->Flags
&= ~SCSI_PORT_SCAN_IN_PROGRESS
;
3821 DPRINT("SpiScanAdapter(): Found device of type %d at bus %d tid %d lun %d\n",
3822 InquiryData
->DeviceType
, Bus
, Target
, Lun
);
3824 /* Add this info to the linked list */
3825 LunInfo
->Next
= NULL
;
3827 LastLunInfo
->Next
= LunInfo
;
3829 BusScanInfo
->LunInfo
= LunInfo
;
3831 /* Store the last LUN info */
3832 LastLunInfo
= LunInfo
;
3834 /* Store DeviceObject */
3835 LunInfo
->DeviceObject
= DeviceExtension
->DeviceObject
;
3837 /* Allocate another buffer */
3838 LunInfo
= ExAllocatePoolWithTag(PagedPool
, sizeof(SCSI_LUN_INFO
), TAG_SCSIPORT
);
3842 DPRINT1("Out of resources!\n");
3846 RtlZeroMemory(LunInfo
, sizeof(SCSI_LUN_INFO
));
3848 /* Create a new LU extension */
3849 LunExtension
= SpiAllocateLunExtension(DeviceExtension
);
3855 /* Remove this LUN from the list */
3856 DeviceExtension
->LunExtensionList
[Hint
] =
3857 DeviceExtension
->LunExtensionList
[Hint
]->Next
;
3859 /* Decide whether we are continuing or not */
3860 if (Status
== STATUS_INVALID_DEVICE_REQUEST
)
3868 /* Free allocated buffers */
3870 ExFreePool(LunExtension
);
3873 ExFreePool(LunInfo
);
3875 /* Sum what we found */
3876 BusScanInfo
->LogicalUnitsCount
+= (UCHAR
) DevicesFound
;
3877 DPRINT(" Found %d devices on bus %d\n", DevicesFound
, Bus
);
3880 DPRINT ("SpiScanAdapter() done\n");
3885 SpiGetInquiryData(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
3888 ULONG InquiryDataSize
;
3889 PSCSI_LUN_INFO LunInfo
;
3890 ULONG BusCount
, LunCount
, Length
;
3891 PIO_STACK_LOCATION IrpStack
;
3892 PSCSI_ADAPTER_BUS_INFO AdapterBusInfo
;
3893 PSCSI_INQUIRY_DATA InquiryData
;
3894 PSCSI_BUS_DATA BusData
;
3898 DPRINT("SpiGetInquiryData() called\n");
3900 /* Get pointer to the buffer */
3901 IrpStack
= IoGetCurrentIrpStackLocation(Irp
);
3902 Buffer
= Irp
->AssociatedIrp
.SystemBuffer
;
3904 /* Initialize bus and LUN counters */
3905 BusCount
= DeviceExtension
->BusesConfig
->NumberOfBuses
;
3908 /* Calculate total number of LUNs */
3909 for (Bus
= 0; Bus
< BusCount
; Bus
++)
3910 LunCount
+= DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->LogicalUnitsCount
;
3912 /* Calculate size of inquiry data, rounding up to sizeof(ULONG) */
3914 ((sizeof(SCSI_INQUIRY_DATA
) - 1 + INQUIRYDATABUFFERSIZE
+
3915 sizeof(ULONG
) - 1) & ~(sizeof(ULONG
) - 1));
3917 /* Calculate data size */
3918 Length
= sizeof(SCSI_ADAPTER_BUS_INFO
) + (BusCount
- 1) *
3919 sizeof(SCSI_BUS_DATA
);
3921 Length
+= InquiryDataSize
* LunCount
;
3923 /* Check, if all data is going to fit into provided buffer */
3924 if (IrpStack
->Parameters
.DeviceIoControl
.OutputBufferLength
< Length
)
3926 Irp
->IoStatus
.Status
= STATUS_BUFFER_TOO_SMALL
;
3927 return STATUS_BUFFER_TOO_SMALL
;
3930 /* Store data size in the IRP */
3931 Irp
->IoStatus
.Information
= Length
;
3933 DPRINT("Data size: %lu\n", Length
);
3935 AdapterBusInfo
= (PSCSI_ADAPTER_BUS_INFO
)Buffer
;
3937 AdapterBusInfo
->NumberOfBuses
= (UCHAR
)BusCount
;
3939 /* Point InquiryData to the corresponding place inside Buffer */
3940 InquiryData
= (PSCSI_INQUIRY_DATA
)(Buffer
+ sizeof(SCSI_ADAPTER_BUS_INFO
) +
3941 (BusCount
- 1) * sizeof(SCSI_BUS_DATA
));
3944 for (Bus
= 0; Bus
< BusCount
; Bus
++)
3946 BusData
= &AdapterBusInfo
->BusData
[Bus
];
3948 /* Calculate and save an offset of the inquiry data */
3949 BusData
->InquiryDataOffset
= (PUCHAR
)InquiryData
- Buffer
;
3951 /* Get a pointer to the LUN information structure */
3952 LunInfo
= DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->LunInfo
;
3954 /* Store Initiator Bus Id */
3955 BusData
->InitiatorBusId
=
3956 DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->BusIdentifier
;
3958 /* Store LUN count */
3959 BusData
->NumberOfLogicalUnits
=
3960 DeviceExtension
->BusesConfig
->BusScanInfo
[Bus
]->LogicalUnitsCount
;
3963 while (LunInfo
!= NULL
)
3965 DPRINT("(Bus %lu Target %lu Lun %lu)\n",
3966 Bus
, LunInfo
->TargetId
, LunInfo
->Lun
);
3968 /* Fill InquiryData with values */
3969 InquiryData
->PathId
= LunInfo
->PathId
;
3970 InquiryData
->TargetId
= LunInfo
->TargetId
;
3971 InquiryData
->Lun
= LunInfo
->Lun
;
3972 InquiryData
->InquiryDataLength
= INQUIRYDATABUFFERSIZE
;
3973 InquiryData
->DeviceClaimed
= LunInfo
->DeviceClaimed
;
3974 InquiryData
->NextInquiryDataOffset
=
3975 (PUCHAR
)InquiryData
+ InquiryDataSize
- Buffer
;
3977 /* Copy data in it */
3978 RtlCopyMemory(InquiryData
->InquiryData
,
3979 LunInfo
->InquiryData
,
3980 INQUIRYDATABUFFERSIZE
);
3982 /* Move to the next LUN */
3983 LunInfo
= LunInfo
->Next
;
3984 InquiryData
= (PSCSI_INQUIRY_DATA
) ((PCHAR
)InquiryData
+ InquiryDataSize
);
3987 /* Either mark the end, or set offset to 0 */
3988 if (BusData
->NumberOfLogicalUnits
!= 0)
3989 ((PSCSI_INQUIRY_DATA
) ((PCHAR
) InquiryData
- InquiryDataSize
))->NextInquiryDataOffset
= 0;
3991 BusData
->InquiryDataOffset
= 0;
3994 /* Finish with success */
3995 Irp
->IoStatus
.Status
= STATUS_SUCCESS
;
3996 return STATUS_SUCCESS
;
3999 static PSCSI_REQUEST_BLOCK_INFO
4000 SpiGetSrbData(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
4006 PSCSI_PORT_LUN_EXTENSION LunExtension
;
4008 if (QueueTag
== SP_UNTAGGED
)
4010 /* Untagged request, get LU and return pointer to SrbInfo */
4011 LunExtension
= SpiGetLunExtension(DeviceExtension
,
4016 /* Return NULL in case of error */
4020 /* Return the pointer to SrbInfo */
4021 return &LunExtension
->SrbInfo
;
4025 /* Make sure the tag is valid, if it is - return the data */
4026 if (QueueTag
> DeviceExtension
->SrbDataCount
|| QueueTag
< 1)
4029 return &DeviceExtension
->SrbInfo
[QueueTag
-1];
4034 SpiSendRequestSense(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
4035 IN PSCSI_REQUEST_BLOCK InitialSrb
)
4037 PSCSI_REQUEST_BLOCK Srb
;
4040 PIO_STACK_LOCATION IrpStack
;
4041 LARGE_INTEGER LargeInt
;
4044 DPRINT("SpiSendRequestSense() entered, InitialSrb %p\n", InitialSrb
);
4047 Srb
= ExAllocatePoolWithTag(NonPagedPool
, sizeof(SCSI_REQUEST_BLOCK
) + sizeof(PVOID
), TAG_SCSIPORT
);
4048 RtlZeroMemory(Srb
, sizeof(SCSI_REQUEST_BLOCK
));
4051 LargeInt
.QuadPart
= (LONGLONG
) 1;
4052 Irp
= IoBuildAsynchronousFsdRequest(IRP_MJ_READ
,
4053 DeviceExtension
->DeviceObject
,
4054 InitialSrb
->SenseInfoBuffer
,
4055 InitialSrb
->SenseInfoBufferLength
,
4059 IoSetCompletionRoutine(Irp
,
4060 (PIO_COMPLETION_ROUTINE
)SpiCompletionRoutine
,
4068 DPRINT("SpiSendRequestSense() failed, Srb %p\n", Srb
);
4072 IrpStack
= IoGetNextIrpStackLocation(Irp
);
4073 IrpStack
->MajorFunction
= IRP_MJ_SCSI
;
4075 /* Put Srb address into Irp... */
4076 IrpStack
->Parameters
.Others
.Argument1
= (PVOID
)Srb
;
4078 /* ...and vice versa */
4079 Srb
->OriginalRequest
= Irp
;
4082 Ptr
= (PVOID
*)(Srb
+1);
4085 /* Build CDB for REQUEST SENSE */
4087 Cdb
= (PCDB
)Srb
->Cdb
;
4089 Cdb
->CDB6INQUIRY
.OperationCode
= SCSIOP_REQUEST_SENSE
;
4090 Cdb
->CDB6INQUIRY
.LogicalUnitNumber
= 0;
4091 Cdb
->CDB6INQUIRY
.Reserved1
= 0;
4092 Cdb
->CDB6INQUIRY
.PageCode
= 0;
4093 Cdb
->CDB6INQUIRY
.IReserved
= 0;
4094 Cdb
->CDB6INQUIRY
.AllocationLength
= (UCHAR
)InitialSrb
->SenseInfoBufferLength
;
4095 Cdb
->CDB6INQUIRY
.Control
= 0;
4098 Srb
->TargetId
= InitialSrb
->TargetId
;
4099 Srb
->Lun
= InitialSrb
->Lun
;
4100 Srb
->PathId
= InitialSrb
->PathId
;
4102 Srb
->Function
= SRB_FUNCTION_EXECUTE_SCSI
;
4103 Srb
->Length
= sizeof(SCSI_REQUEST_BLOCK
);
4105 /* Timeout will be 2 seconds */
4106 Srb
->TimeOutValue
= 2;
4108 /* No auto request sense */
4109 Srb
->SenseInfoBufferLength
= 0;
4110 Srb
->SenseInfoBuffer
= NULL
;
4112 /* Set necessary flags */
4113 Srb
->SrbFlags
= SRB_FLAGS_DATA_IN
| SRB_FLAGS_BYPASS_FROZEN_QUEUE
|
4114 SRB_FLAGS_DISABLE_DISCONNECT
;
4116 /* Transfer disable synch transfer flag */
4117 if (InitialSrb
->SrbFlags
& SRB_FLAGS_DISABLE_SYNCH_TRANSFER
)
4118 Srb
->SrbFlags
|= SRB_FLAGS_DISABLE_SYNCH_TRANSFER
;
4120 Srb
->DataBuffer
= InitialSrb
->SenseInfoBuffer
;
4122 /* Fill the transfer length */
4123 Srb
->DataTransferLength
= InitialSrb
->SenseInfoBufferLength
;
4125 /* Clear statuses */
4126 Srb
->ScsiStatus
= Srb
->SrbStatus
= 0;
4129 /* Call the driver */
4130 (VOID
)IoCallDriver(DeviceExtension
->DeviceObject
, Irp
);
4132 DPRINT("SpiSendRequestSense() done\n");
4139 SpiProcessCompletedRequest(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
4140 IN PSCSI_REQUEST_BLOCK_INFO SrbInfo
,
4141 OUT PBOOLEAN NeedToCallStartIo
)
4143 PSCSI_REQUEST_BLOCK Srb
;
4144 PSCSI_PORT_LUN_EXTENSION LunExtension
;
4147 ULONG SequenceNumber
;
4150 Irp
= Srb
->OriginalRequest
;
4152 /* Get Lun extension */
4153 LunExtension
= SpiGetLunExtension(DeviceExtension
,
4158 if (Srb
->SrbFlags
& SRB_FLAGS_UNSPECIFIED_DIRECTION
&&
4159 DeviceExtension
->MapBuffers
&&
4162 /* MDL is shared if transfer is broken into smaller parts */
4163 Srb
->DataBuffer
= (PCCHAR
)MmGetMdlVirtualAddress(Irp
->MdlAddress
) +
4164 ((PCCHAR
)Srb
->DataBuffer
- SrbInfo
->DataOffset
);
4166 /* In case of data going in, flush the buffers */
4167 if (Srb
->SrbFlags
& SRB_FLAGS_DATA_IN
)
4169 KeFlushIoBuffers(Irp
->MdlAddress
,
4175 /* Flush adapter if needed */
4176 if (SrbInfo
->BaseOfMapRegister
)
4178 /* TODO: Implement */
4182 /* Clear the request */
4183 SrbInfo
->Srb
= NULL
;
4185 /* If disconnect is disabled... */
4186 if (Srb
->SrbFlags
& SRB_FLAGS_DISABLE_DISCONNECT
)
4188 /* Acquire the spinlock since we mess with flags */
4189 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4191 /* Set corresponding flag */
4192 DeviceExtension
->Flags
|= SCSI_PORT_DISCONNECT_ALLOWED
;
4194 /* Clear the timer if needed */
4195 if (!(DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_RESET
))
4196 DeviceExtension
->TimerCount
= -1;
4198 /* Spinlock is not needed anymore */
4199 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4201 if (!(DeviceExtension
->Flags
& SCSI_PORT_REQUEST_PENDING
) &&
4202 !(DeviceExtension
->Flags
& SCSI_PORT_DEVICE_BUSY
) &&
4203 !(*NeedToCallStartIo
))
4205 /* We're not busy, but we have a request pending */
4206 IoStartNextPacket(DeviceExtension
->DeviceObject
, FALSE
);
4210 /* Scatter/gather */
4211 if (Srb
->SrbFlags
& SRB_FLAGS_SGLIST_FROM_POOL
)
4213 /* TODO: Implement */
4217 /* Acquire spinlock (we're freeing SrbExtension) */
4218 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4220 /* Free it (if needed) */
4221 if (Srb
->SrbExtension
)
4223 if (Srb
->SenseInfoBuffer
!= NULL
&& DeviceExtension
->SupportsAutoSense
)
4225 ASSERT(Srb
->SenseInfoBuffer
== NULL
|| SrbInfo
->SaveSenseRequest
!= NULL
);
4227 if (Srb
->SrbStatus
& SRB_STATUS_AUTOSENSE_VALID
)
4229 /* Copy sense data to the buffer */
4230 RtlCopyMemory(SrbInfo
->SaveSenseRequest
,
4231 Srb
->SenseInfoBuffer
,
4232 Srb
->SenseInfoBufferLength
);
4235 /* And restore the pointer */
4236 Srb
->SenseInfoBuffer
= SrbInfo
->SaveSenseRequest
;
4239 /* Put it into the free srb extensions list */
4240 *((PVOID
*)Srb
->SrbExtension
) = DeviceExtension
->FreeSrbExtensions
;
4241 DeviceExtension
->FreeSrbExtensions
= Srb
->SrbExtension
;
4244 /* Save transfer length in the IRP */
4245 Irp
->IoStatus
.Information
= Srb
->DataTransferLength
;
4247 SequenceNumber
= SrbInfo
->SequenceNumber
;
4248 SrbInfo
->SequenceNumber
= 0;
4250 /* Decrement the queue count */
4251 LunExtension
->QueueCount
--;
4253 /* Free Srb, if needed*/
4254 if (Srb
->QueueTag
!= SP_UNTAGGED
)
4256 /* Put it into the free list */
4257 SrbInfo
->Requests
.Blink
= NULL
;
4258 SrbInfo
->Requests
.Flink
= (PLIST_ENTRY
)DeviceExtension
->FreeSrbInfo
;
4259 DeviceExtension
->FreeSrbInfo
= SrbInfo
;
4262 /* SrbInfo is not used anymore */
4265 if (DeviceExtension
->Flags
& SCSI_PORT_REQUEST_PENDING
)
4267 /* Clear the flag */
4268 DeviceExtension
->Flags
&= ~SCSI_PORT_REQUEST_PENDING
;
4270 /* Note the caller about StartIo */
4271 *NeedToCallStartIo
= TRUE
;
4274 if (SRB_STATUS(Srb
->SrbStatus
) == SRB_STATUS_SUCCESS
)
4276 /* Start the packet */
4277 Irp
->IoStatus
.Status
= STATUS_SUCCESS
;
4279 if (!(Srb
->SrbFlags
& SRB_FLAGS_BYPASS_FROZEN_QUEUE
) &&
4280 LunExtension
->RequestTimeout
== -1)
4282 /* Start the next packet */
4283 SpiGetNextRequestFromLun(DeviceExtension
, LunExtension
);
4287 /* Release the spinlock */
4288 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4291 DPRINT("IoCompleting request IRP 0x%p\n", Irp
);
4293 IoCompleteRequest(Irp
, IO_DISK_INCREMENT
);
4295 /* Decrement number of active requests, and analyze the result */
4296 Result
= InterlockedDecrement(&DeviceExtension
->ActiveRequestCounter
);
4299 !DeviceExtension
->MapRegisters
&&
4300 DeviceExtension
->AdapterObject
!= NULL
)
4302 /* Nullify map registers */
4303 DeviceExtension
->MapRegisterBase
= NULL
;
4304 IoFreeAdapterChannel(DeviceExtension
->AdapterObject
);
4307 /* Exit, we're done */
4311 /* Decrement number of active requests, and analyze the result */
4312 Result
= InterlockedDecrement(&DeviceExtension
->ActiveRequestCounter
);
4315 !DeviceExtension
->MapRegisters
&&
4316 DeviceExtension
->AdapterObject
!= NULL
)
4318 /* Result is negative, so this is a slave, free map registers */
4319 DeviceExtension
->MapRegisterBase
= NULL
;
4320 IoFreeAdapterChannel(DeviceExtension
->AdapterObject
);
4323 /* Convert status */
4324 Irp
->IoStatus
.Status
= SpiStatusSrbToNt(Srb
->SrbStatus
);
4326 /* It's not a bypass, it's busy or the queue is full? */
4327 if ((Srb
->ScsiStatus
== SCSISTAT_BUSY
||
4328 Srb
->SrbStatus
== SRB_STATUS_BUSY
||
4329 Srb
->ScsiStatus
== SCSISTAT_QUEUE_FULL
) &&
4330 !(Srb
->SrbFlags
& SRB_FLAGS_BYPASS_FROZEN_QUEUE
))
4333 DPRINT("Busy SRB status %x\n", Srb
->SrbStatus
);
4335 /* Requeu, if needed */
4336 if (LunExtension
->Flags
& (LUNEX_FROZEN_QUEUE
| LUNEX_BUSY
))
4338 DPRINT("it's being requeued\n");
4340 Srb
->SrbStatus
= SRB_STATUS_PENDING
;
4341 Srb
->ScsiStatus
= 0;
4343 if (!KeInsertByKeyDeviceQueue(&LunExtension
->DeviceQueue
,
4344 &Irp
->Tail
.Overlay
.DeviceQueueEntry
,
4347 /* It's a big f.ck up if we got here */
4348 Srb
->SrbStatus
= SRB_STATUS_ERROR
;
4349 Srb
->ScsiStatus
= SCSISTAT_BUSY
;
4355 /* Release the spinlock */
4356 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4359 else if (LunExtension
->AttemptCount
++ < 20)
4361 /* LUN is still busy */
4362 Srb
->ScsiStatus
= 0;
4363 Srb
->SrbStatus
= SRB_STATUS_PENDING
;
4365 LunExtension
->BusyRequest
= Irp
;
4366 LunExtension
->Flags
|= LUNEX_BUSY
;
4368 /* Release the spinlock */
4369 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4374 /* Freeze the queue*/
4375 Srb
->SrbStatus
|= SRB_STATUS_QUEUE_FROZEN
;
4376 LunExtension
->Flags
|= LUNEX_FROZEN_QUEUE
;
4378 /* "Unfull" the queue */
4379 LunExtension
->Flags
&= ~LUNEX_FULL_QUEUE
;
4381 /* Release the spinlock */
4382 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4384 /* Return status that the device is not ready */
4385 Irp
->IoStatus
.Status
= STATUS_DEVICE_NOT_READY
;
4386 IoCompleteRequest(Irp
, IO_DISK_INCREMENT
);
4392 /* Start the next request, if LUN is idle, and this is sense request */
4393 if (((Srb
->ScsiStatus
!= SCSISTAT_CHECK_CONDITION
) ||
4394 (Srb
->SrbStatus
& SRB_STATUS_AUTOSENSE_VALID
) ||
4395 !Srb
->SenseInfoBuffer
|| !Srb
->SenseInfoBufferLength
)
4396 && (Srb
->SrbFlags
& SRB_FLAGS_NO_QUEUE_FREEZE
))
4398 if (LunExtension
->RequestTimeout
== -1)
4399 SpiGetNextRequestFromLun(DeviceExtension
, LunExtension
);
4401 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4405 /* Freeze the queue */
4406 Srb
->SrbStatus
|= SRB_STATUS_QUEUE_FROZEN
;
4407 LunExtension
->Flags
|= LUNEX_FROZEN_QUEUE
;
4409 /* Do we need a request sense? */
4410 if (Srb
->ScsiStatus
== SCSISTAT_CHECK_CONDITION
&&
4411 !(Srb
->SrbStatus
& SRB_STATUS_AUTOSENSE_VALID
) &&
4412 Srb
->SenseInfoBuffer
&& Srb
->SenseInfoBufferLength
)
4414 /* If LUN is busy, we have to requeue it in order to allow request sense */
4415 if (LunExtension
->Flags
& LUNEX_BUSY
)
4417 DPRINT("Requeueing busy request to allow request sense\n");
4419 if (!KeInsertByKeyDeviceQueue(&LunExtension
->DeviceQueue
,
4420 &LunExtension
->BusyRequest
->Tail
.Overlay
.DeviceQueueEntry
,
4423 /* We should never get here */
4426 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4427 IoCompleteRequest(Irp
, IO_DISK_INCREMENT
);
4432 /* Clear busy flags */
4433 LunExtension
->Flags
&= ~(LUNEX_FULL_QUEUE
| LUNEX_BUSY
);
4436 /* Release the spinlock */
4437 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4439 /* Send RequestSense */
4440 SpiSendRequestSense(DeviceExtension
, Srb
);
4446 /* Release the spinlock */
4447 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4450 /* Complete the request */
4451 IoCompleteRequest(Irp
, IO_DISK_INCREMENT
);
4456 SpiCompletionRoutine(PDEVICE_OBJECT DeviceObject
,
4460 PSCSI_REQUEST_BLOCK Srb
= (PSCSI_REQUEST_BLOCK
)Context
;
4461 PSCSI_REQUEST_BLOCK InitialSrb
;
4464 DPRINT("SpiCompletionRoutine() entered, IRP %p \n", Irp
);
4466 if ((Srb
->Function
== SRB_FUNCTION_RESET_BUS
) ||
4467 (Srb
->Function
== SRB_FUNCTION_ABORT_COMMAND
))
4469 /* Deallocate SRB and IRP and exit */
4473 return STATUS_MORE_PROCESSING_REQUIRED
;
4476 /* Get a pointer to the SRB and IRP which were initially sent */
4477 InitialSrb
= *((PVOID
*)(Srb
+1));
4478 InitialIrp
= InitialSrb
->OriginalRequest
;
4480 if ((SRB_STATUS(Srb
->SrbStatus
) == SRB_STATUS_SUCCESS
) ||
4481 (SRB_STATUS(Srb
->SrbStatus
) == SRB_STATUS_DATA_OVERRUN
))
4483 /* Sense data is OK */
4484 InitialSrb
->SrbStatus
|= SRB_STATUS_AUTOSENSE_VALID
;
4486 /* Set length to be the same */
4487 InitialSrb
->SenseInfoBufferLength
= (UCHAR
)Srb
->DataTransferLength
;
4490 /* Make sure initial SRB's queue is frozen */
4491 ASSERT(InitialSrb
->SrbStatus
& SRB_STATUS_QUEUE_FROZEN
);
4493 /* Complete this request */
4494 IoCompleteRequest(InitialIrp
, IO_DISK_INCREMENT
);
4496 /* Deallocate everything (internal) */
4499 if (Irp
->MdlAddress
!= NULL
)
4501 MmUnlockPages(Irp
->MdlAddress
);
4502 IoFreeMdl(Irp
->MdlAddress
);
4503 Irp
->MdlAddress
= NULL
;
4507 return STATUS_MORE_PROCESSING_REQUIRED
;
4510 static BOOLEAN NTAPI
4511 ScsiPortIsr(IN PKINTERRUPT Interrupt
,
4512 IN PVOID ServiceContext
)
4514 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
4517 DPRINT("ScsiPortIsr() called!\n");
4519 DeviceExtension
= (PSCSI_PORT_DEVICE_EXTENSION
)ServiceContext
;
4521 /* If interrupts are disabled - we don't expect any */
4522 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_DISABLE_INTERRUPTS
)
4525 /* Call miniport's HwInterrupt routine */
4526 Result
= DeviceExtension
->HwInterrupt(&DeviceExtension
->MiniPortDeviceExtension
);
4528 /* If flag of notification is set - queue a DPC */
4529 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
4531 IoRequestDpc(DeviceExtension
->DeviceObject
,
4532 DeviceExtension
->CurrentIrp
,
4541 SpiSaveInterruptData(IN PVOID Context
)
4543 PSCSI_PORT_SAVE_INTERRUPT InterruptContext
= Context
;
4544 PSCSI_PORT_LUN_EXTENSION LunExtension
;
4545 PSCSI_REQUEST_BLOCK Srb
;
4546 PSCSI_REQUEST_BLOCK_INFO SrbInfo
, NextSrbInfo
;
4547 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
4550 /* Get pointer to the device extension */
4551 DeviceExtension
= InterruptContext
->DeviceExtension
;
4553 /* If we don't have anything pending - return */
4554 if (!(DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
))
4557 /* Actually save the interrupt data */
4558 *InterruptContext
->InterruptData
= DeviceExtension
->InterruptData
;
4560 /* Clear the data stored in the device extension */
4561 DeviceExtension
->InterruptData
.Flags
&=
4562 (SCSI_PORT_RESET
| SCSI_PORT_RESET_REQUEST
| SCSI_PORT_DISABLE_INTERRUPTS
);
4563 DeviceExtension
->InterruptData
.CompletedAbort
= NULL
;
4564 DeviceExtension
->InterruptData
.ReadyLun
= NULL
;
4565 DeviceExtension
->InterruptData
.CompletedRequests
= NULL
;
4567 /* Loop through the list of completed requests */
4568 SrbInfo
= InterruptContext
->InterruptData
->CompletedRequests
;
4572 /* Make sure we have SRV */
4573 ASSERT(SrbInfo
->Srb
);
4575 /* Get SRB and LunExtension */
4578 LunExtension
= SpiGetLunExtension(DeviceExtension
,
4583 /* We have to check special cases if request is unsuccessfull*/
4584 if (Srb
->SrbStatus
!= SRB_STATUS_SUCCESS
)
4586 /* Check if we need request sense by a few conditions */
4587 if (Srb
->SenseInfoBuffer
&& Srb
->SenseInfoBufferLength
&&
4588 Srb
->ScsiStatus
== SCSISTAT_CHECK_CONDITION
&&
4589 !(Srb
->SrbStatus
& SRB_STATUS_AUTOSENSE_VALID
))
4591 if (LunExtension
->Flags
& LUNEX_NEED_REQUEST_SENSE
)
4593 /* It means: we tried to send REQUEST SENSE, but failed */
4595 Srb
->ScsiStatus
= 0;
4596 Srb
->SrbStatus
= SRB_STATUS_REQUEST_SENSE_FAILED
;
4600 /* Set the corresponding flag, so that REQUEST SENSE
4602 LunExtension
->Flags
|= LUNEX_NEED_REQUEST_SENSE
;
4607 /* Check for a full queue */
4608 if (Srb
->ScsiStatus
== SCSISTAT_QUEUE_FULL
)
4610 /* TODO: Implement when it's encountered */
4615 /* Let's decide if we need to watch timeout or not */
4616 if (Srb
->QueueTag
== SP_UNTAGGED
)
4622 if (LunExtension
->SrbInfo
.Requests
.Flink
== &SrbInfo
->Requests
)
4627 /* Remove it from the queue */
4628 RemoveEntryList(&SrbInfo
->Requests
);
4633 /* We have to maintain timeout counter */
4634 if (IsListEmpty(&LunExtension
->SrbInfo
.Requests
))
4636 LunExtension
->RequestTimeout
= -1;
4640 NextSrbInfo
= CONTAINING_RECORD(LunExtension
->SrbInfo
.Requests
.Flink
,
4641 SCSI_REQUEST_BLOCK_INFO
,
4644 Srb
= NextSrbInfo
->Srb
;
4646 /* Update timeout counter */
4647 LunExtension
->RequestTimeout
= Srb
->TimeOutValue
;
4651 SrbInfo
= SrbInfo
->CompletedRequests
;
4659 SpiGetNextRequestFromLun(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
4660 IN PSCSI_PORT_LUN_EXTENSION LunExtension
)
4662 PIO_STACK_LOCATION IrpStack
;
4664 PKDEVICE_QUEUE_ENTRY Entry
;
4665 PSCSI_REQUEST_BLOCK Srb
;
4668 /* If LUN is not active or queue is more than maximum allowed */
4669 if (LunExtension
->QueueCount
>= LunExtension
->MaxQueueCount
||
4670 !(LunExtension
->Flags
& SCSI_PORT_LU_ACTIVE
))
4672 /* Release the spinlock and exit */
4673 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4677 /* Check if we can get a next request */
4678 if (LunExtension
->Flags
&
4679 (LUNEX_NEED_REQUEST_SENSE
| LUNEX_BUSY
|
4680 LUNEX_FULL_QUEUE
| LUNEX_FROZEN_QUEUE
| LUNEX_REQUEST_PENDING
))
4682 /* Pending requests can only be started if the queue is empty */
4683 if (IsListEmpty(&LunExtension
->SrbInfo
.Requests
) &&
4684 !(LunExtension
->Flags
&
4685 (LUNEX_BUSY
| LUNEX_FROZEN_QUEUE
| LUNEX_FULL_QUEUE
| LUNEX_NEED_REQUEST_SENSE
)))
4687 /* Make sure we have SRB */
4688 ASSERT(LunExtension
->SrbInfo
.Srb
== NULL
);
4690 /* Clear active and pending flags */
4691 LunExtension
->Flags
&= ~(LUNEX_REQUEST_PENDING
| SCSI_PORT_LU_ACTIVE
);
4693 /* Get next Irp, and clear pending requests list */
4694 NextIrp
= LunExtension
->PendingRequest
;
4695 LunExtension
->PendingRequest
= NULL
;
4697 /* Set attempt counter to zero */
4698 LunExtension
->AttemptCount
= 0;
4700 /* Release the spinlock */
4701 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4703 /* Start the next pending request */
4704 IoStartPacket(DeviceExtension
->DeviceObject
, NextIrp
, (PULONG
)NULL
, NULL
);
4710 /* Release the spinlock, without clearing any flags and exit */
4711 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4717 /* Reset active flag */
4718 LunExtension
->Flags
&= ~SCSI_PORT_LU_ACTIVE
;
4720 /* Set attempt counter to zero */
4721 LunExtension
->AttemptCount
= 0;
4723 /* Remove packet from the device queue */
4724 Entry
= KeRemoveByKeyDeviceQueue(&LunExtension
->DeviceQueue
, LunExtension
->SortKey
);
4728 /* Get pointer to the next irp */
4729 NextIrp
= CONTAINING_RECORD(Entry
, IRP
, Tail
.Overlay
.DeviceQueueEntry
);
4731 /* Get point to the SRB */
4732 IrpStack
= IoGetCurrentIrpStackLocation(NextIrp
);
4733 Srb
= (PSCSI_REQUEST_BLOCK
)IrpStack
->Parameters
.Others
.Argument1
;
4736 LunExtension
->SortKey
= Srb
->QueueSortKey
;
4737 LunExtension
->SortKey
++;
4739 /* Release the spinlock */
4740 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4742 /* Start the next pending request */
4743 IoStartPacket(DeviceExtension
->DeviceObject
, NextIrp
, (PULONG
)NULL
, NULL
);
4747 /* Release the spinlock */
4748 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4754 // ScsiPortDpcForIsr
4761 // IN PDEVICE_OBJECT DpcDeviceObject
4763 // IN PVOID DpcContext
4766 ScsiPortDpcForIsr(IN PKDPC Dpc
,
4767 IN PDEVICE_OBJECT DpcDeviceObject
,
4769 IN PVOID DpcContext
)
4771 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
= DpcDeviceObject
->DeviceExtension
;
4772 SCSI_PORT_INTERRUPT_DATA InterruptData
;
4773 SCSI_PORT_SAVE_INTERRUPT Context
;
4774 PSCSI_PORT_LUN_EXTENSION LunExtension
;
4775 BOOLEAN NeedToStartIo
;
4776 PSCSI_REQUEST_BLOCK_INFO SrbInfo
;
4778 DPRINT("ScsiPortDpcForIsr(Dpc %p DpcDeviceObject %p DpcIrp %p DpcContext %p)\n",
4779 Dpc
, DpcDeviceObject
, DpcIrp
, DpcContext
);
4781 /* We need to acquire spinlock */
4782 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4784 RtlZeroMemory(&InterruptData
, sizeof(SCSI_PORT_INTERRUPT_DATA
));
4788 /* Interrupt structure must be snapshotted, and only then analyzed */
4789 Context
.InterruptData
= &InterruptData
;
4790 Context
.DeviceExtension
= DeviceExtension
;
4792 if (!KeSynchronizeExecution(DeviceExtension
->Interrupt
,
4793 SpiSaveInterruptData
,
4796 /* Nothing - just return (don't forget to release the spinlock */
4797 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4798 DPRINT("ScsiPortDpcForIsr() done\n");
4802 /* If flush of adapters is needed - do it */
4803 if (InterruptData
.Flags
& SCSI_PORT_FLUSH_ADAPTERS
)
4805 /* TODO: Implement */
4809 /* Check for IoMapTransfer */
4810 if (InterruptData
.Flags
& SCSI_PORT_MAP_TRANSFER
)
4812 /* TODO: Implement */
4816 /* Check if timer is needed */
4817 if (InterruptData
.Flags
& SCIS_PORT_TIMER_NEEDED
)
4819 /* TODO: Implement */
4823 /* If it's ready for the next request */
4824 if (InterruptData
.Flags
& SCSI_PORT_NEXT_REQUEST_READY
)
4826 /* Check for a duplicate request (NextRequest+NextLuRequest) */
4827 if ((DeviceExtension
->Flags
&
4828 (SCSI_PORT_DEVICE_BUSY
| SCSI_PORT_DISCONNECT_ALLOWED
)) ==
4829 (SCSI_PORT_DEVICE_BUSY
| SCSI_PORT_DISCONNECT_ALLOWED
))
4831 /* Clear busy flag set by ScsiPortStartPacket() */
4832 DeviceExtension
->Flags
&= ~SCSI_PORT_DEVICE_BUSY
;
4834 if (!(InterruptData
.Flags
& SCSI_PORT_RESET
))
4836 /* Ready for next, and no reset is happening */
4837 DeviceExtension
->TimerCount
= -1;
4842 /* Not busy, but not ready for the next request */
4843 DeviceExtension
->Flags
&= ~SCSI_PORT_DEVICE_BUSY
;
4844 InterruptData
.Flags
&= ~SCSI_PORT_NEXT_REQUEST_READY
;
4849 if (InterruptData
.Flags
& SCSI_PORT_RESET_REPORTED
)
4851 /* Hold for a bit */
4852 DeviceExtension
->TimerCount
= 4;
4855 /* Any ready LUN? */
4856 if (InterruptData
.ReadyLun
!= NULL
)
4859 /* Process all LUNs from the list*/
4862 /* Remove it from the list first (as processed) */
4863 LunExtension
= InterruptData
.ReadyLun
;
4864 InterruptData
.ReadyLun
= LunExtension
->ReadyLun
;
4865 LunExtension
->ReadyLun
= NULL
;
4867 /* Get next request for this LUN */
4868 SpiGetNextRequestFromLun(DeviceExtension
, LunExtension
);
4870 /* Still ready requests exist?
4871 If yes - get spinlock, if no - stop here */
4872 if (InterruptData
.ReadyLun
!= NULL
)
4873 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4880 /* Release the spinlock */
4881 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4884 /* If we ready for next packet, start it */
4885 if (InterruptData
.Flags
& SCSI_PORT_NEXT_REQUEST_READY
)
4886 IoStartNextPacket(DeviceExtension
->DeviceObject
, FALSE
);
4888 NeedToStartIo
= FALSE
;
4890 /* Loop the completed request list */
4891 while (InterruptData
.CompletedRequests
)
4893 /* Remove the request */
4894 SrbInfo
= InterruptData
.CompletedRequests
;
4895 InterruptData
.CompletedRequests
= SrbInfo
->CompletedRequests
;
4896 SrbInfo
->CompletedRequests
= NULL
;
4899 SpiProcessCompletedRequest(DeviceExtension
,
4904 /* Loop abort request list */
4905 while (InterruptData
.CompletedAbort
)
4907 LunExtension
= InterruptData
.CompletedAbort
;
4909 /* Remove the request */
4910 InterruptData
.CompletedAbort
= LunExtension
->CompletedAbortRequests
;
4912 /* Get spinlock since we're going to change flags */
4913 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4915 /* TODO: Put SrbExtension to the list of free extensions */
4919 /* If we need - call StartIo routine */
4922 /* Make sure CurrentIrp is not null! */
4923 ASSERT(DpcDeviceObject
->CurrentIrp
!= NULL
);
4924 ScsiPortStartIo(DpcDeviceObject
, DpcDeviceObject
->CurrentIrp
);
4927 /* Everything has been done, check */
4928 if (InterruptData
.Flags
& SCSI_PORT_ENABLE_INT_REQUEST
)
4930 /* Synchronize using spinlock */
4931 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
4933 /* Request an interrupt */
4934 DeviceExtension
->HwInterrupt(DeviceExtension
->MiniPortDeviceExtension
);
4936 ASSERT(DeviceExtension
->Flags
& SCSI_PORT_DISABLE_INT_REQUESET
);
4938 /* Should interrupts be enabled again? */
4939 if (DeviceExtension
->Flags
& SCSI_PORT_DISABLE_INT_REQUESET
)
4941 /* Clear this flag */
4942 DeviceExtension
->Flags
&= ~SCSI_PORT_DISABLE_INT_REQUESET
;
4944 /* Call a special routine to do this */
4947 KeSynchronizeExecution(DeviceExtension
->Interrupt
,
4948 SpiEnableInterrupts
,
4953 /* If we need a notification again - loop */
4954 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
4957 /* Release the spinlock */
4958 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
4961 DPRINT("ScsiPortDpcForIsr() done\n");
4966 SpiProcessTimeout(PVOID ServiceContext
)
4968 PDEVICE_OBJECT DeviceObject
= (PDEVICE_OBJECT
)ServiceContext
;
4969 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
= DeviceObject
->DeviceExtension
;
4972 DPRINT("SpiProcessTimeout() entered\n");
4974 DeviceExtension
->TimerCount
= -1;
4976 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_RESET
)
4978 DeviceExtension
->InterruptData
.Flags
&= ~SCSI_PORT_RESET
;
4980 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_RESET_REQUEST
)
4982 DeviceExtension
->InterruptData
.Flags
&= ~SCSI_PORT_RESET_REQUEST
;
4983 ScsiPortStartPacket(ServiceContext
);
4990 DPRINT("Resetting the bus\n");
4992 for (Bus
= 0; Bus
< DeviceExtension
->BusNum
; Bus
++)
4994 DeviceExtension
->HwResetBus(DeviceExtension
->MiniPortDeviceExtension
, Bus
);
4996 /* Reset flags and set reset timeout to 4 seconds */
4997 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_RESET
;
4998 DeviceExtension
->TimerCount
= 4;
5001 /* If miniport requested - request a dpc for it */
5002 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
5003 IoRequestDpc(DeviceExtension
->DeviceObject
, NULL
, NULL
);
5012 SpiResetBus(PVOID ServiceContext
)
5014 PRESETBUS_PARAMS ResetParams
= (PRESETBUS_PARAMS
)ServiceContext
;
5015 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
5017 /* Perform the bus reset */
5018 DeviceExtension
= (PSCSI_PORT_DEVICE_EXTENSION
)ResetParams
->DeviceExtension
;
5019 DeviceExtension
->HwResetBus(DeviceExtension
->MiniPortDeviceExtension
,
5020 ResetParams
->PathId
);
5022 /* Set flags and start the timer */
5023 DeviceExtension
->InterruptData
.Flags
|= SCSI_PORT_RESET
;
5024 DeviceExtension
->TimerCount
= 4;
5026 /* If miniport requested - give him a DPC */
5027 if (DeviceExtension
->InterruptData
.Flags
& SCSI_PORT_NOTIFICATION_NEEDED
)
5028 IoRequestDpc(DeviceExtension
->DeviceObject
, NULL
, NULL
);
5035 // This function handles timeouts and other time delayed processing
5040 // IN PDEVICE_OBJECT DeviceObject Device object registered with timer
5041 // IN PVOID Context the Controller extension for the
5042 // controller the device is on
5045 ScsiPortIoTimer(PDEVICE_OBJECT DeviceObject
,
5048 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
;
5049 PSCSI_PORT_LUN_EXTENSION LunExtension
;
5053 DPRINT("ScsiPortIoTimer()\n");
5055 DeviceExtension
= (PSCSI_PORT_DEVICE_EXTENSION
)DeviceObject
->DeviceExtension
;
5057 /* Protect with the spinlock */
5058 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
5060 /* Check timeouts */
5061 if (DeviceExtension
->TimerCount
> 0)
5063 /* Decrease the timeout counter */
5064 DeviceExtension
->TimerCount
--;
5066 if (DeviceExtension
->TimerCount
== 0)
5068 /* Timeout, process it */
5069 if (KeSynchronizeExecution(DeviceExtension
->Interrupt
,
5071 DeviceExtension
->DeviceObject
))
5073 DPRINT("Error happened during processing timeout, but nothing critical\n");
5077 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
5079 /* We should exit now, since timeout is processed */
5083 /* Per-Lun scanning of timeouts is needed... */
5084 for (Lun
= 0; Lun
< LUS_NUMBER
; Lun
++)
5086 LunExtension
= DeviceExtension
->LunExtensionList
[Lun
];
5088 while (LunExtension
)
5090 if (LunExtension
->Flags
& LUNEX_BUSY
)
5092 if (!(LunExtension
->Flags
&
5093 (LUNEX_NEED_REQUEST_SENSE
| LUNEX_FROZEN_QUEUE
)))
5095 DPRINT("Retrying busy request\n");
5097 /* Clear flags, and retry busy request */
5098 LunExtension
->Flags
&= ~(LUNEX_BUSY
| LUNEX_FULL_QUEUE
);
5099 Irp
= LunExtension
->BusyRequest
;
5101 /* Clearing busy request */
5102 LunExtension
->BusyRequest
= NULL
;
5104 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
5106 IoStartPacket(DeviceObject
, Irp
, (PULONG
)NULL
, NULL
);
5108 KeAcquireSpinLockAtDpcLevel(&DeviceExtension
->SpinLock
);
5111 else if (LunExtension
->RequestTimeout
== 0)
5113 RESETBUS_PARAMS ResetParams
;
5115 LunExtension
->RequestTimeout
= -1;
5117 DPRINT("Request timed out, resetting bus\n");
5119 /* Pass params to the bus reset routine */
5120 ResetParams
.PathId
= LunExtension
->PathId
;
5121 ResetParams
.DeviceExtension
= DeviceExtension
;
5123 if (!KeSynchronizeExecution(DeviceExtension
->Interrupt
,
5127 DPRINT1("Reset failed\n");
5130 else if (LunExtension
->RequestTimeout
> 0)
5132 /* Decrement the timeout counter */
5133 LunExtension
->RequestTimeout
--;
5136 LunExtension
= LunExtension
->Next
;
5140 /* Release the spinlock */
5141 KeReleaseSpinLockFromDpcLevel(&DeviceExtension
->SpinLock
);
5144 /**********************************************************************
5149 * Builds the registry device map of all device which are attached
5150 * to the given SCSI HBA port. The device map is located at:
5151 * \Registry\Machine\DeviceMap\Scsi
5161 * Name of registry driver service key.
5168 SpiBuildDeviceMap (PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
5169 PUNICODE_STRING RegistryPath
)
5171 PSCSI_PORT_LUN_EXTENSION LunExtension
;
5172 OBJECT_ATTRIBUTES ObjectAttributes
;
5173 UNICODE_STRING KeyName
;
5174 UNICODE_STRING ValueName
;
5175 WCHAR NameBuffer
[64];
5178 HANDLE ScsiPortKey
= NULL
;
5179 HANDLE ScsiBusKey
= NULL
;
5180 HANDLE ScsiInitiatorKey
= NULL
;
5181 HANDLE ScsiTargetKey
= NULL
;
5182 HANDLE ScsiLunKey
= NULL
;
5185 ULONG CurrentTarget
;
5192 DPRINT("SpiBuildDeviceMap() called\n");
5194 if (DeviceExtension
== NULL
|| RegistryPath
== NULL
)
5196 DPRINT1("Invalid parameter\n");
5197 return(STATUS_INVALID_PARAMETER
);
5200 /* Open or create the 'Scsi' subkey */
5201 RtlInitUnicodeString(&KeyName
,
5202 L
"\\Registry\\Machine\\Hardware\\DeviceMap\\Scsi");
5203 InitializeObjectAttributes(&ObjectAttributes
,
5205 OBJ_CASE_INSENSITIVE
| OBJ_OPENIF
,
5208 Status
= ZwCreateKey(&ScsiKey
,
5213 REG_OPTION_VOLATILE
,
5215 if (!NT_SUCCESS(Status
))
5217 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5221 /* Create new 'Scsi Port X' subkey */
5222 DPRINT("Scsi Port %lu\n",
5223 DeviceExtension
->PortNumber
);
5225 swprintf(NameBuffer
,
5227 DeviceExtension
->PortNumber
);
5228 RtlInitUnicodeString(&KeyName
,
5230 InitializeObjectAttributes(&ObjectAttributes
,
5235 Status
= ZwCreateKey(&ScsiPortKey
,
5240 REG_OPTION_VOLATILE
,
5243 if (!NT_SUCCESS(Status
))
5245 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5250 * Create port-specific values
5253 /* Set 'DMA Enabled' (REG_DWORD) value */
5254 UlongData
= (ULONG
)!DeviceExtension
->PortCapabilities
.AdapterUsesPio
;
5255 DPRINT(" DMA Enabled = %s\n", (UlongData
) ? "TRUE" : "FALSE");
5256 RtlInitUnicodeString(&ValueName
,
5258 Status
= ZwSetValueKey(ScsiPortKey
,
5264 if (!NT_SUCCESS(Status
))
5266 DPRINT("ZwSetValueKey('DMA Enabled') failed (Status %lx)\n", Status
);
5267 ZwClose(ScsiPortKey
);
5271 /* Set 'Driver' (REG_SZ) value */
5272 DriverName
= wcsrchr(RegistryPath
->Buffer
, L
'\\') + 1;
5273 RtlInitUnicodeString(&ValueName
,
5275 Status
= ZwSetValueKey(ScsiPortKey
,
5280 (wcslen(DriverName
) + 1) * sizeof(WCHAR
));
5281 if (!NT_SUCCESS(Status
))
5283 DPRINT("ZwSetValueKey('Driver') failed (Status %lx)\n", Status
);
5284 ZwClose(ScsiPortKey
);
5288 /* Set 'Interrupt' (REG_DWORD) value (NT4 only) */
5289 UlongData
= (ULONG
)DeviceExtension
->PortConfig
->BusInterruptLevel
;
5290 DPRINT(" Interrupt = %lu\n", UlongData
);
5291 RtlInitUnicodeString(&ValueName
,
5293 Status
= ZwSetValueKey(ScsiPortKey
,
5299 if (!NT_SUCCESS(Status
))
5301 DPRINT("ZwSetValueKey('Interrupt') failed (Status %lx)\n", Status
);
5302 ZwClose(ScsiPortKey
);
5306 /* Set 'IOAddress' (REG_DWORD) value (NT4 only) */
5307 UlongData
= ScsiPortConvertPhysicalAddressToUlong((*DeviceExtension
->PortConfig
->AccessRanges
)[0].RangeStart
);
5308 DPRINT(" IOAddress = %lx\n", UlongData
);
5309 RtlInitUnicodeString(&ValueName
,
5311 Status
= ZwSetValueKey(ScsiPortKey
,
5317 if (!NT_SUCCESS(Status
))
5319 DPRINT("ZwSetValueKey('IOAddress') failed (Status %lx)\n", Status
);
5320 ZwClose(ScsiPortKey
);
5324 /* Enumerate buses */
5325 for (BusNumber
= 0; BusNumber
< DeviceExtension
->PortConfig
->NumberOfBuses
; BusNumber
++)
5327 /* Create 'Scsi Bus X' key */
5328 DPRINT(" Scsi Bus %lu\n", BusNumber
);
5329 swprintf(NameBuffer
,
5332 RtlInitUnicodeString(&KeyName
,
5334 InitializeObjectAttributes(&ObjectAttributes
,
5339 Status
= ZwCreateKey(&ScsiBusKey
,
5344 REG_OPTION_VOLATILE
,
5346 if (!NT_SUCCESS(Status
))
5348 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5352 /* Create 'Initiator Id X' key */
5353 DPRINT(" Initiator Id %u\n",
5354 DeviceExtension
->PortConfig
->InitiatorBusId
[BusNumber
]);
5355 swprintf(NameBuffer
,
5357 (unsigned int)(UCHAR
)DeviceExtension
->PortConfig
->InitiatorBusId
[BusNumber
]);
5358 RtlInitUnicodeString(&KeyName
,
5360 InitializeObjectAttributes(&ObjectAttributes
,
5365 Status
= ZwCreateKey(&ScsiInitiatorKey
,
5370 REG_OPTION_VOLATILE
,
5372 if (!NT_SUCCESS(Status
))
5374 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5378 /* FIXME: Are there any initiator values (??) */
5380 ZwClose(ScsiInitiatorKey
);
5381 ScsiInitiatorKey
= NULL
;
5384 /* Enumerate targets */
5385 CurrentTarget
= (ULONG
)-1;
5386 ScsiTargetKey
= NULL
;
5387 for (Target
= 0; Target
< DeviceExtension
->PortConfig
->MaximumNumberOfTargets
; Target
++)
5389 for (Lun
= 0; Lun
< SCSI_MAXIMUM_LOGICAL_UNITS
; Lun
++)
5391 LunExtension
= SpiGetLunExtension(DeviceExtension
,
5395 if (LunExtension
!= NULL
)
5397 if (Target
!= CurrentTarget
)
5399 /* Close old target key */
5400 if (ScsiTargetKey
!= NULL
)
5402 ZwClose(ScsiTargetKey
);
5403 ScsiTargetKey
= NULL
;
5406 /* Create 'Target Id X' key */
5407 DPRINT(" Target Id %lu\n", Target
);
5408 swprintf(NameBuffer
,
5411 RtlInitUnicodeString(&KeyName
,
5413 InitializeObjectAttributes(&ObjectAttributes
,
5418 Status
= ZwCreateKey(&ScsiTargetKey
,
5423 REG_OPTION_VOLATILE
,
5425 if (!NT_SUCCESS(Status
))
5427 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5431 CurrentTarget
= Target
;
5434 /* Create 'Logical Unit Id X' key */
5435 DPRINT(" Logical Unit Id %lu\n", Lun
);
5436 swprintf(NameBuffer
,
5437 L
"Logical Unit Id %lu",
5439 RtlInitUnicodeString(&KeyName
,
5441 InitializeObjectAttributes(&ObjectAttributes
,
5446 Status
= ZwCreateKey(&ScsiLunKey
,
5451 REG_OPTION_VOLATILE
,
5453 if (!NT_SUCCESS(Status
))
5455 DPRINT("ZwCreateKey() failed (Status %lx)\n", Status
);
5459 /* Set 'Identifier' (REG_SZ) value */
5460 swprintf(NameBuffer
,
5462 LunExtension
->InquiryData
.VendorId
,
5463 LunExtension
->InquiryData
.ProductId
,
5464 LunExtension
->InquiryData
.ProductRevisionLevel
);
5465 DPRINT(" Identifier = '%S'\n", NameBuffer
);
5466 RtlInitUnicodeString(&ValueName
,
5468 Status
= ZwSetValueKey(ScsiLunKey
,
5473 (wcslen(NameBuffer
) + 1) * sizeof(WCHAR
));
5474 if (!NT_SUCCESS(Status
))
5476 DPRINT("ZwSetValueKey('Identifier') failed (Status %lx)\n", Status
);
5480 /* Set 'Type' (REG_SZ) value */
5481 switch (LunExtension
->InquiryData
.DeviceType
)
5484 TypeName
= L
"DiskPeripheral";
5487 TypeName
= L
"TapePeripheral";
5490 TypeName
= L
"PrinterPeripheral";
5493 TypeName
= L
"WormPeripheral";
5496 TypeName
= L
"CdRomPeripheral";
5499 TypeName
= L
"ScannerPeripheral";
5502 TypeName
= L
"OpticalDiskPeripheral";
5505 TypeName
= L
"MediumChangerPeripheral";
5508 TypeName
= L
"CommunicationPeripheral";
5511 TypeName
= L
"OtherPeripheral";
5514 DPRINT(" Type = '%S'\n", TypeName
);
5515 RtlInitUnicodeString(&ValueName
,
5517 Status
= ZwSetValueKey(ScsiLunKey
,
5522 (wcslen(TypeName
) + 1) * sizeof(WCHAR
));
5523 if (!NT_SUCCESS(Status
))
5525 DPRINT("ZwSetValueKey('Type') failed (Status %lx)\n", Status
);
5529 ZwClose(ScsiLunKey
);
5534 /* Close old target key */
5535 if (ScsiTargetKey
!= NULL
)
5537 ZwClose(ScsiTargetKey
);
5538 ScsiTargetKey
= NULL
;
5542 ZwClose(ScsiBusKey
);
5547 if (ScsiLunKey
!= NULL
)
5548 ZwClose (ScsiLunKey
);
5550 if (ScsiInitiatorKey
!= NULL
)
5551 ZwClose (ScsiInitiatorKey
);
5553 if (ScsiTargetKey
!= NULL
)
5554 ZwClose (ScsiTargetKey
);
5556 if (ScsiBusKey
!= NULL
)
5557 ZwClose (ScsiBusKey
);
5559 if (ScsiPortKey
!= NULL
)
5560 ZwClose (ScsiPortKey
);
5562 DPRINT("SpiBuildDeviceMap() done\n");
5569 SpiMiniportTimerDpc(IN
struct _KDPC
*Dpc
,
5570 IN PVOID DeviceObject
,
5571 IN PVOID SystemArgument1
,
5572 IN PVOID SystemArgument2
)
5574 DPRINT1("Miniport timer DPC\n");
5579 SpiCreatePortConfig(PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
5580 PHW_INITIALIZATION_DATA HwInitData
,
5581 PCONFIGURATION_INFO InternalConfigInfo
,
5582 PPORT_CONFIGURATION_INFORMATION ConfigInfo
,
5585 UNICODE_STRING UnicodeString
;
5586 OBJECT_ATTRIBUTES ObjectAttributes
;
5587 PCONFIGURATION_INFORMATION DdkConfigInformation
;
5588 HANDLE RootKey
, Key
;
5590 WCHAR DeviceBuffer
[16];
5591 WCHAR StrBuffer
[512];
5595 /* Zero out the struct if told so */
5598 /* First zero the portconfig */
5599 RtlZeroMemory(ConfigInfo
, sizeof(PORT_CONFIGURATION_INFORMATION
));
5601 /* Then access ranges */
5602 RtlZeroMemory(InternalConfigInfo
->AccessRanges
,
5603 HwInitData
->NumberOfAccessRanges
* sizeof(ACCESS_RANGE
));
5605 /* Initialize the struct */
5606 ConfigInfo
->Length
= sizeof(PORT_CONFIGURATION_INFORMATION
);
5607 ConfigInfo
->AdapterInterfaceType
= HwInitData
->AdapterInterfaceType
;
5608 ConfigInfo
->InterruptMode
= Latched
;
5609 ConfigInfo
->DmaChannel
= SP_UNINITIALIZED_VALUE
;
5610 ConfigInfo
->DmaPort
= SP_UNINITIALIZED_VALUE
;
5611 ConfigInfo
->MaximumTransferLength
= SP_UNINITIALIZED_VALUE
;
5612 ConfigInfo
->NumberOfAccessRanges
= HwInitData
->NumberOfAccessRanges
;
5613 ConfigInfo
->MaximumNumberOfTargets
= 8;
5615 /* Store parameters */
5616 ConfigInfo
->NeedPhysicalAddresses
= HwInitData
->NeedPhysicalAddresses
;
5617 ConfigInfo
->MapBuffers
= HwInitData
->MapBuffers
;
5618 ConfigInfo
->AutoRequestSense
= HwInitData
->AutoRequestSense
;
5619 ConfigInfo
->ReceiveEvent
= HwInitData
->ReceiveEvent
;
5620 ConfigInfo
->TaggedQueuing
= HwInitData
->TaggedQueuing
;
5621 ConfigInfo
->MultipleRequestPerLu
= HwInitData
->MultipleRequestPerLu
;
5623 /* Get the disk usage */
5624 DdkConfigInformation
= IoGetConfigurationInformation();
5625 ConfigInfo
->AtdiskPrimaryClaimed
= DdkConfigInformation
->AtDiskPrimaryAddressClaimed
;
5626 ConfigInfo
->AtdiskSecondaryClaimed
= DdkConfigInformation
->AtDiskSecondaryAddressClaimed
;
5628 /* Initiator bus id is not set */
5629 for (Bus
= 0; Bus
< 8; Bus
++)
5630 ConfigInfo
->InitiatorBusId
[Bus
] = (CCHAR
)SP_UNINITIALIZED_VALUE
;
5633 ConfigInfo
->NumberOfPhysicalBreaks
= 17;
5635 /* Clear this information */
5636 InternalConfigInfo
->DisableTaggedQueueing
= FALSE
;
5637 InternalConfigInfo
->DisableMultipleLun
= FALSE
;
5639 /* Store Bus Number */
5640 ConfigInfo
->SystemIoBusNumber
= InternalConfigInfo
->BusNumber
;
5644 if (ConfigInfo
->AdapterInterfaceType
== Internal
)
5646 /* Open registry key for HW database */
5647 InitializeObjectAttributes(&ObjectAttributes
,
5648 DeviceExtension
->DeviceObject
->DriverObject
->HardwareDatabase
,
5649 OBJ_CASE_INSENSITIVE
,
5653 Status
= ZwOpenKey(&RootKey
,
5657 if (NT_SUCCESS(Status
))
5659 /* Create name for it */
5660 swprintf(StrBuffer
, L
"ScsiAdapter\\%lu",
5661 InternalConfigInfo
->AdapterNumber
);
5663 RtlInitUnicodeString(&UnicodeString
, StrBuffer
);
5665 /* Open device key */
5666 InitializeObjectAttributes(&ObjectAttributes
,
5668 OBJ_CASE_INSENSITIVE
,
5672 Status
= ZwOpenKey(&Key
,
5678 if (NT_SUCCESS(Status
))
5680 if (InternalConfigInfo
->LastAdapterNumber
!= InternalConfigInfo
->AdapterNumber
)
5682 DPRINT("Hardware info found at %S\n", StrBuffer
);
5685 SpiParseDeviceInfo(DeviceExtension
,
5691 InternalConfigInfo
->BusNumber
= 0;
5695 /* Try the next adapter */
5696 InternalConfigInfo
->AdapterNumber
++;
5702 /* Info was not found, exit */
5703 DPRINT1("ZwOpenKey() failed with Status=0x%08X\n", Status
);
5704 return STATUS_DEVICE_DOES_NOT_EXIST
;
5709 DPRINT1("ZwOpenKey() failed with Status=0x%08X\n", Status
);
5713 /* Look at device params */
5715 if (InternalConfigInfo
->Parameter
)
5717 ExFreePool(InternalConfigInfo
->Parameter
);
5718 InternalConfigInfo
->Parameter
= NULL
;
5721 if (InternalConfigInfo
->ServiceKey
!= NULL
)
5723 swprintf(DeviceBuffer
, L
"Device%lu", InternalConfigInfo
->AdapterNumber
);
5724 RtlInitUnicodeString(&UnicodeString
, DeviceBuffer
);
5726 /* Open the service key */
5727 InitializeObjectAttributes(&ObjectAttributes
,
5729 OBJ_CASE_INSENSITIVE
,
5730 InternalConfigInfo
->ServiceKey
,
5733 Status
= ZwOpenKey(&Key
,
5738 /* Parse device key */
5739 if (InternalConfigInfo
->DeviceKey
!= NULL
)
5741 SpiParseDeviceInfo(DeviceExtension
,
5742 InternalConfigInfo
->DeviceKey
,
5748 /* Then parse hw info */
5751 if (InternalConfigInfo
->LastAdapterNumber
!= InternalConfigInfo
->AdapterNumber
)
5753 SpiParseDeviceInfo(DeviceExtension
,
5764 /* Adapter not found, go try the next one */
5765 InternalConfigInfo
->AdapterNumber
++;
5774 /* Update the last adapter number */
5775 InternalConfigInfo
->LastAdapterNumber
= InternalConfigInfo
->AdapterNumber
;
5777 /* Do we have this kind of bus at all? */
5779 Status
= IoQueryDeviceDescription(&HwInitData
->AdapterInterfaceType
,
5780 &InternalConfigInfo
->BusNumber
,
5785 SpQueryDeviceCallout
,
5788 /* This bus was not found */
5791 INTERFACE_TYPE InterfaceType
= Eisa
;
5793 /* Check for EISA */
5794 if (HwInitData
->AdapterInterfaceType
== Isa
)
5796 Status
= IoQueryDeviceDescription(&InterfaceType
,
5797 &InternalConfigInfo
->BusNumber
,
5802 SpQueryDeviceCallout
,
5805 /* Return respectively */
5807 return STATUS_SUCCESS
;
5809 return STATUS_DEVICE_DOES_NOT_EXIST
;
5813 return STATUS_DEVICE_DOES_NOT_EXIST
;
5818 return STATUS_SUCCESS
;
5823 SpiParseDeviceInfo(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
,
5825 IN PPORT_CONFIGURATION_INFORMATION ConfigInfo
,
5826 IN PCONFIGURATION_INFO InternalConfigInfo
,
5829 PKEY_VALUE_FULL_INFORMATION KeyValueInformation
;
5830 PCM_FULL_RESOURCE_DESCRIPTOR FullResource
;
5831 PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor
;
5832 PCM_SCSI_DEVICE_DATA ScsiDeviceData
;
5833 ULONG Length
, Count
;
5834 ULONG Index
= 0, RangeCount
= 0;
5835 UNICODE_STRING UnicodeString
;
5836 ANSI_STRING AnsiString
;
5837 NTSTATUS Status
= STATUS_SUCCESS
;
5839 KeyValueInformation
= (PKEY_VALUE_FULL_INFORMATION
) Buffer
;
5841 /* Loop through all values in the device node */
5844 Status
= ZwEnumerateValueKey(Key
,
5846 KeyValueFullInformation
,
5851 if (!NT_SUCCESS(Status
))
5856 /* Length for DWORD is ok? */
5857 if (KeyValueInformation
->Type
== REG_DWORD
&&
5858 KeyValueInformation
->DataLength
!= sizeof(ULONG
))
5863 /* Get MaximumLogicalUnit */
5864 if (_wcsnicmp(KeyValueInformation
->Name
, L
"MaximumLogicalUnit",
5865 KeyValueInformation
->NameLength
/2) == 0)
5868 if (KeyValueInformation
->Type
!= REG_DWORD
)
5870 DPRINT("Bad data type for MaximumLogicalUnit\n");
5874 DeviceExtension
->MaxLunCount
= *((PUCHAR
)
5875 (Buffer
+ KeyValueInformation
->DataOffset
));
5877 /* Check / reset if needed */
5878 if (DeviceExtension
->MaxLunCount
> SCSI_MAXIMUM_LOGICAL_UNITS
)
5879 DeviceExtension
->MaxLunCount
= SCSI_MAXIMUM_LOGICAL_UNITS
;
5881 DPRINT("MaximumLogicalUnit = %d\n", DeviceExtension
->MaxLunCount
);
5884 /* Get InitiatorTargetId */
5885 if (_wcsnicmp(KeyValueInformation
->Name
, L
"InitiatorTargetId",
5886 KeyValueInformation
->NameLength
/ 2) == 0)
5889 if (KeyValueInformation
->Type
!= REG_DWORD
)
5891 DPRINT("Bad data type for InitiatorTargetId\n");
5895 ConfigInfo
->InitiatorBusId
[0] = *((PUCHAR
)
5896 (Buffer
+ KeyValueInformation
->DataOffset
));
5898 /* Check / reset if needed */
5899 if (ConfigInfo
->InitiatorBusId
[0] > ConfigInfo
->MaximumNumberOfTargets
- 1)
5900 ConfigInfo
->InitiatorBusId
[0] = (CCHAR
)-1;
5902 DPRINT("InitiatorTargetId = %d\n", ConfigInfo
->InitiatorBusId
[0]);
5906 if (_wcsnicmp(KeyValueInformation
->Name
, L
"ScsiDebug",
5907 KeyValueInformation
->NameLength
/2) == 0)
5909 DPRINT("ScsiDebug key not supported\n");
5912 /* Check for a breakpoint */
5913 if (_wcsnicmp(KeyValueInformation
->Name
, L
"BreakPointOnEntry",
5914 KeyValueInformation
->NameLength
/2) == 0)
5916 DPRINT1("Breakpoint on entry requested!\n");
5920 /* Get DisableSynchronousTransfers */
5921 if (_wcsnicmp(KeyValueInformation
->Name
, L
"DisableSynchronousTransfers",
5922 KeyValueInformation
->NameLength
/2) == 0)
5924 DeviceExtension
->SrbFlags
|= SRB_FLAGS_DISABLE_SYNCH_TRANSFER
;
5925 DPRINT("Synch transfers disabled\n");
5928 /* Get DisableDisconnects */
5929 if (_wcsnicmp(KeyValueInformation
->Name
, L
"DisableDisconnects",
5930 KeyValueInformation
->NameLength
/2) == 0)
5932 DeviceExtension
->SrbFlags
|= SRB_FLAGS_DISABLE_DISCONNECT
;
5933 DPRINT("Disconnects disabled\n");
5936 /* Get DisableTaggedQueuing */
5937 if (_wcsnicmp(KeyValueInformation
->Name
, L
"DisableTaggedQueuing",
5938 KeyValueInformation
->NameLength
/2) == 0)
5940 InternalConfigInfo
->DisableTaggedQueueing
= TRUE
;
5941 DPRINT("Tagged queueing disabled\n");
5944 /* Get DisableMultipleRequests */
5945 if (_wcsnicmp(KeyValueInformation
->Name
, L
"DisableMultipleRequests",
5946 KeyValueInformation
->NameLength
/2) == 0)
5948 InternalConfigInfo
->DisableMultipleLun
= TRUE
;
5949 DPRINT("Multiple requests disabled\n");
5952 /* Get DriverParameters */
5953 if (_wcsnicmp(KeyValueInformation
->Name
, L
"DriverParameters",
5954 KeyValueInformation
->NameLength
/2) == 0)
5956 /* Skip if nothing */
5957 if (KeyValueInformation
->DataLength
== 0)
5960 /* If there was something previously allocated - free it */
5961 if (InternalConfigInfo
->Parameter
!= NULL
)
5962 ExFreePool(InternalConfigInfo
->Parameter
);
5965 InternalConfigInfo
->Parameter
= ExAllocatePoolWithTag(NonPagedPool
,
5966 KeyValueInformation
->DataLength
, TAG_SCSIPORT
);
5968 if (InternalConfigInfo
->Parameter
!= NULL
)
5970 if (KeyValueInformation
->Type
!= REG_SZ
)
5974 InternalConfigInfo
->Parameter
,
5975 (PCCHAR
)KeyValueInformation
+ KeyValueInformation
->DataOffset
,
5976 KeyValueInformation
->DataLength
);
5980 /* If it's a unicode string, convert it to ansi */
5981 UnicodeString
.Length
= (USHORT
)KeyValueInformation
->DataLength
;
5982 UnicodeString
.MaximumLength
= (USHORT
)KeyValueInformation
->DataLength
;
5983 UnicodeString
.Buffer
=
5984 (PWSTR
)((PCCHAR
)KeyValueInformation
+ KeyValueInformation
->DataOffset
);
5986 AnsiString
.Length
= 0;
5987 AnsiString
.MaximumLength
= (USHORT
)KeyValueInformation
->DataLength
;
5988 AnsiString
.Buffer
= (PCHAR
)InternalConfigInfo
->Parameter
;
5990 Status
= RtlUnicodeStringToAnsiString(&AnsiString
,
5994 /* In case of error, free the allocated space */
5995 if (!NT_SUCCESS(Status
))
5997 ExFreePool(InternalConfigInfo
->Parameter
);
5998 InternalConfigInfo
->Parameter
= NULL
;
6004 DPRINT("Found driver parameter\n");
6007 /* Get MaximumSGList */
6008 if (_wcsnicmp(KeyValueInformation
->Name
, L
"MaximumSGList",
6009 KeyValueInformation
->NameLength
/2) == 0)
6011 if (KeyValueInformation
->Type
!= REG_DWORD
)
6013 DPRINT("Bad data type for MaximumSGList\n");
6017 ConfigInfo
->NumberOfPhysicalBreaks
= *((PUCHAR
)(Buffer
+ KeyValueInformation
->DataOffset
));
6020 if (ConfigInfo
->NumberOfPhysicalBreaks
> SCSI_MAXIMUM_PHYSICAL_BREAKS
)
6022 ConfigInfo
->NumberOfPhysicalBreaks
= SCSI_MAXIMUM_PHYSICAL_BREAKS
;
6024 else if (ConfigInfo
->NumberOfPhysicalBreaks
< SCSI_MINIMUM_PHYSICAL_BREAKS
)
6026 ConfigInfo
->NumberOfPhysicalBreaks
= SCSI_MINIMUM_PHYSICAL_BREAKS
;
6029 DPRINT("MaximumSGList = %d\n", ConfigInfo
->NumberOfPhysicalBreaks
);
6032 /* Get NumberOfRequests */
6033 if (_wcsnicmp(KeyValueInformation
->Name
, L
"NumberOfRequests",
6034 KeyValueInformation
->NameLength
/2) == 0)
6036 if (KeyValueInformation
->Type
!= REG_DWORD
)
6038 DPRINT("NumberOfRequests has wrong data type\n");
6042 DeviceExtension
->RequestsNumber
= *((PUCHAR
)(Buffer
+ KeyValueInformation
->DataOffset
));
6045 if (DeviceExtension
->RequestsNumber
< 16)
6047 DeviceExtension
->RequestsNumber
= 16;
6049 else if (DeviceExtension
->RequestsNumber
> 512)
6051 DeviceExtension
->RequestsNumber
= 512;
6054 DPRINT("Number Of Requests = %d\n", DeviceExtension
->RequestsNumber
);
6057 /* Get resource list */
6058 if (_wcsnicmp(KeyValueInformation
->Name
, L
"ResourceList",
6059 KeyValueInformation
->NameLength
/2) == 0 ||
6060 _wcsnicmp(KeyValueInformation
->Name
, L
"Configuration Data",
6061 KeyValueInformation
->NameLength
/2) == 0 )
6063 if (KeyValueInformation
->Type
!= REG_FULL_RESOURCE_DESCRIPTOR
||
6064 KeyValueInformation
->DataLength
< sizeof(REG_FULL_RESOURCE_DESCRIPTOR
))
6066 DPRINT("Bad data type for ResourceList\n");
6071 DPRINT("Found ResourceList\n");
6074 FullResource
= (PCM_FULL_RESOURCE_DESCRIPTOR
)(Buffer
+ KeyValueInformation
->DataOffset
);
6076 /* Copy some info from it */
6077 InternalConfigInfo
->BusNumber
= FullResource
->BusNumber
;
6078 ConfigInfo
->SystemIoBusNumber
= FullResource
->BusNumber
;
6080 /* Loop through it */
6081 for (Count
= 0; Count
< FullResource
->PartialResourceList
.Count
; Count
++)
6083 /* Get partial descriptor */
6085 &FullResource
->PartialResourceList
.PartialDescriptors
[Count
];
6087 /* Check datalength */
6088 if ((ULONG
)((PCHAR
)(PartialDescriptor
+ 1) -
6089 (PCHAR
)FullResource
) > KeyValueInformation
->DataLength
)
6091 DPRINT("Resource data is of incorrect size\n");
6095 switch (PartialDescriptor
->Type
)
6097 case CmResourceTypePort
:
6098 if (RangeCount
>= ConfigInfo
->NumberOfAccessRanges
)
6100 DPRINT("Too many access ranges\n");
6104 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeInMemory
= FALSE
;
6105 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeStart
= PartialDescriptor
->u
.Port
.Start
;
6106 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeLength
= PartialDescriptor
->u
.Port
.Length
;
6111 case CmResourceTypeMemory
:
6112 if (RangeCount
>= ConfigInfo
->NumberOfAccessRanges
)
6114 DPRINT("Too many access ranges\n");
6118 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeInMemory
= TRUE
;
6119 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeStart
= PartialDescriptor
->u
.Memory
.Start
;
6120 InternalConfigInfo
->AccessRanges
[RangeCount
].RangeLength
= PartialDescriptor
->u
.Memory
.Length
;
6125 case CmResourceTypeInterrupt
:
6126 ConfigInfo
->BusInterruptLevel
=
6127 PartialDescriptor
->u
.Interrupt
.Level
;
6129 ConfigInfo
->BusInterruptVector
=
6130 PartialDescriptor
->u
.Interrupt
.Vector
;
6133 case CmResourceTypeDma
:
6134 ConfigInfo
->DmaChannel
= PartialDescriptor
->u
.Dma
.Channel
;
6135 ConfigInfo
->DmaPort
= PartialDescriptor
->u
.Dma
.Port
;
6138 case CmResourceTypeDeviceSpecific
:
6139 if (PartialDescriptor
->u
.DeviceSpecificData
.DataSize
<
6140 sizeof(CM_SCSI_DEVICE_DATA
) ||
6141 (PCHAR
) (PartialDescriptor
+ 1) - (PCHAR
)FullResource
+
6142 PartialDescriptor
->u
.DeviceSpecificData
.DataSize
>
6143 KeyValueInformation
->DataLength
)
6145 DPRINT("Resource data length is incorrect");
6149 /* Set only one field from it */
6150 ScsiDeviceData
= (PCM_SCSI_DEVICE_DATA
) (PartialDescriptor
+1);
6151 ConfigInfo
->InitiatorBusId
[0] = ScsiDeviceData
->HostIdentifier
;
6161 SpQueryDeviceCallout(IN PVOID Context
,
6162 IN PUNICODE_STRING PathName
,
6163 IN INTERFACE_TYPE BusType
,
6165 IN PKEY_VALUE_FULL_INFORMATION
*BusInformation
,
6166 IN CONFIGURATION_TYPE ControllerType
,
6167 IN ULONG ControllerNumber
,
6168 IN PKEY_VALUE_FULL_INFORMATION
*ControllerInformation
,
6169 IN CONFIGURATION_TYPE PeripheralType
,
6170 IN ULONG PeripheralNumber
,
6171 IN PKEY_VALUE_FULL_INFORMATION
*PeripheralInformation
)
6173 PBOOLEAN Found
= (PBOOLEAN
)Context
;
6174 /* We just set our Found variable to TRUE */
6177 return STATUS_SUCCESS
;
6180 IO_ALLOCATION_ACTION
6182 ScsiPortAllocateAdapterChannel(IN PDEVICE_OBJECT DeviceObject
,
6184 IN PVOID MapRegisterBase
,
6188 PSCSI_PORT_DEVICE_EXTENSION DeviceExtension
= DeviceObject
->DeviceExtension
;
6190 /* Guard access with the spinlock */
6191 KeAcquireSpinLock(&DeviceExtension
->SpinLock
, &Irql
);
6193 /* Save MapRegisterBase we've got here */
6194 DeviceExtension
->MapRegisterBase
= MapRegisterBase
;
6196 /* Start pending request */
6197 KeSynchronizeExecution(DeviceExtension
->Interrupt
,
6198 ScsiPortStartPacket
, DeviceObject
);
6200 /* Release spinlock we took */
6201 KeReleaseSpinLock(&DeviceExtension
->SpinLock
, Irql
);
6208 SpiStatusSrbToNt(UCHAR SrbStatus
)
6210 switch (SRB_STATUS(SrbStatus
))
6212 case SRB_STATUS_TIMEOUT
:
6213 case SRB_STATUS_COMMAND_TIMEOUT
:
6214 return STATUS_IO_TIMEOUT
;
6216 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH
:
6217 case SRB_STATUS_BAD_FUNCTION
:
6218 return STATUS_INVALID_DEVICE_REQUEST
;
6220 case SRB_STATUS_NO_DEVICE
:
6221 case SRB_STATUS_INVALID_LUN
:
6222 case SRB_STATUS_INVALID_TARGET_ID
:
6223 case SRB_STATUS_NO_HBA
:
6224 return STATUS_DEVICE_DOES_NOT_EXIST
;
6226 case SRB_STATUS_DATA_OVERRUN
:
6227 return STATUS_BUFFER_OVERFLOW
;
6229 case SRB_STATUS_SELECTION_TIMEOUT
:
6230 return STATUS_DEVICE_NOT_CONNECTED
;
6233 return STATUS_IO_DEVICE_ERROR
;
6236 return STATUS_IO_DEVICE_ERROR
;
6240 #undef ScsiPortConvertPhysicalAddressToUlong
6245 ScsiPortConvertPhysicalAddressToUlong(IN SCSI_PHYSICAL_ADDRESS Address
)
6247 DPRINT("ScsiPortConvertPhysicalAddressToUlong()\n");
6248 return(Address
.u
.LowPart
);