[fireball] 26189: - Rewrite bus scanning / inquiry handling (was BSODing). - Change a way LUN extensions are stored inside DeviceExtension.
27 Mar
2007
27 Mar
'07
9:15 p.m.
Author: fireball
Date: Wed Mar 28 01:15:09 2007
New Revision: 26189
URL: http://svn.reactos.org/svn/reactos?rev=26189&view=rev
Log:
- Rewrite bus scanning / inquiry handling (was BSODing).
- Change a way LUN extensions are stored inside DeviceExtension.
Modified:
trunk/reactos/drivers/storage/scsiport-new/scsiport.c
trunk/reactos/drivers/storage/scsiport-new/scsiport_int.h
Modified: trunk/reactos/drivers/storage/scsiport-new/scsiport.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/scsiport-n…
==============================================================================
--- trunk/reactos/drivers/storage/scsiport-new/scsiport.c (original)
+++ trunk/reactos/drivers/storage/scsiport-new/scsiport.c Wed Mar 28 01:15:09 2007
@@ -80,13 +80,7 @@
static PSCSI_PORT_LUN_EXTENSION
-SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
- IN UCHAR PathId,
- IN UCHAR TargetId,
- IN UCHAR Lun);
-
-static VOID
-SpiRemoveLunExtension (IN PSCSI_PORT_LUN_EXTENSION LunExtension);
+SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension);
static PSCSI_PORT_LUN_EXTENSION
SpiGetLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
@@ -96,14 +90,14 @@
static NTSTATUS
SpiSendInquiry (IN PDEVICE_OBJECT DeviceObject,
- IN OUT PSCSI_REQUEST_BLOCK Srb);
+ IN PSCSI_LUN_INFO LunInfo);
static VOID
SpiScanAdapter (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension);
-static ULONG
+static NTSTATUS
SpiGetInquiryData (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
- OUT PSCSI_ADAPTER_BUS_INFO AdapterBusInfo);
+ IN PIRP Irp);
static BOOLEAN STDCALL
ScsiPortIsr(IN PKINTERRUPT Interrupt,
@@ -246,7 +240,7 @@
PSCSI_PORT_DEVICE_BASE DeviceBase;
PLIST_ENTRY Entry;
- DPRINT("ScsiPortFreeDeviceBase() called\n");
+ //DPRINT("ScsiPortFreeDeviceBase() called\n");
DeviceExtension = CONTAINING_RECORD(HwDeviceExtension,
SCSI_PORT_DEVICE_EXTENSION,
@@ -311,7 +305,7 @@
ULONG AddressSpace;
PVOID MappedAddress;
- DPRINT ("ScsiPortGetDeviceBase() called\n");
+ //DPRINT ("ScsiPortGetDeviceBase() called\n");
AddressSpace = (ULONG)InIoSpace;
if (HalTranslateBusAddress(BusType,
@@ -359,6 +353,8 @@
IN UCHAR TargetId,
IN UCHAR Lun)
{
+ UNIMPLEMENTED;
+#if 0
PSCSI_PORT_DEVICE_EXTENSION DeviceExtension;
PSCSI_PORT_LUN_EXTENSION LunExtension;
PLIST_ENTRY Entry;
@@ -386,7 +382,7 @@
Entry = Entry->Flink;
}
-
+#endif
return NULL;
}
@@ -748,9 +744,6 @@
/* Initialize the device base list */
InitializeListHead (&DeviceExtension->DeviceBaseListHead);
- /* Initialize LUN-Extension list */
- InitializeListHead (&DeviceExtension->LunExtensionListHead);
-
/* Initialize the spin lock in the controller extension */
KeInitializeSpinLock (&DeviceExtension->IrpLock);
KeInitializeSpinLock (&DeviceExtension->SpinLock);
@@ -791,7 +784,7 @@
// PortConfig->DmaSpeed =
// PortConfig->AlignmentMask =
PortConfig->NumberOfAccessRanges =
HwInitializationData->NumberOfAccessRanges;
-// PortConfig->NumberOfBuses =
+ PortConfig->NumberOfBuses = MaxBus;
for (i = 0; i < SCSI_MAXIMUM_BUSES; i++)
PortConfig->InitiatorBusId[i] = 255;
@@ -916,6 +909,26 @@
PortConfig->AdapterScansDown;
PortCapabilities->AdapterUsesPio = TRUE; /* FIXME */
+ /* Initialize bus scanning information */
+ DeviceExtension->BusesConfig = ExAllocatePool(PagedPool,
+ sizeof(PSCSI_BUS_SCAN_INFO) *
DeviceExtension->PortConfig->NumberOfBuses
+ + sizeof(ULONG));
+
+ if (!DeviceExtension->BusesConfig)
+ {
+ DPRINT1("Out of resources!\n");
+ Status = STATUS_INSUFFICIENT_RESOURCES;
+ goto ByeBye;
+ }
+
+ /* Zero it */
+ RtlZeroMemory(DeviceExtension->BusesConfig,
+ sizeof(PSCSI_BUS_SCAN_INFO) *
DeviceExtension->PortConfig->NumberOfBuses
+ + sizeof(ULONG));
+
+ /* Store number of buses there */
+ DeviceExtension->BusesConfig->NumberOfBuses =
DeviceExtension->PortConfig->NumberOfBuses;
+
/* Scan the adapter for devices */
SpiScanAdapter (DeviceExtension);
@@ -1552,10 +1565,7 @@
DPRINT(" IOCTL_SCSI_GET_INQUIRY_DATA\n");
/* Copy inquiry data to the port device extension */
- Irp->IoStatus.Information =
- SpiGetInquiryData(DeviceExtension,
- Irp->AssociatedIrp.SystemBuffer);
- DPRINT("Inquiry data size: %lu\n", Irp->IoStatus.Information);
+ Irp->IoStatus.Status = SpiGetInquiryData(DeviceExtension, Irp);
}
break;
@@ -1723,64 +1733,41 @@
static PSCSI_PORT_LUN_EXTENSION
-SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
- IN UCHAR PathId,
- IN UCHAR TargetId,
- IN UCHAR Lun)
-{
- PSCSI_PORT_LUN_EXTENSION LunExtension;
- ULONG LunExtensionSize;
-
- DPRINT("SpiAllocateLunExtension (%p %u %u %u)\n",
- DeviceExtension, PathId, TargetId, Lun);
-
- LunExtensionSize =
- sizeof(SCSI_PORT_LUN_EXTENSION) + DeviceExtension->LunExtensionSize;
- DPRINT("LunExtensionSize %lu\n", LunExtensionSize);
-
- LunExtension = ExAllocatePool(NonPagedPool,
- LunExtensionSize);
- if (LunExtension == NULL)
- {
- return NULL;
- }
-
- RtlZeroMemory(LunExtension,
- LunExtensionSize);
-
- InsertTailList(&DeviceExtension->LunExtensionListHead,
- &LunExtension->List);
-
- LunExtension->PathId = PathId;
- LunExtension->TargetId = TargetId;
- LunExtension->Lun = Lun;
-
- KeInitializeDeviceQueue (&LunExtension->DeviceQueue);
-
- return LunExtension;
-}
-
-
-static VOID
-SpiRemoveLunExtension (IN PSCSI_PORT_LUN_EXTENSION LunExtension)
-{
- DPRINT("SpiRemoveLunExtension(%p) called\n",
- LunExtension);
-
- if (LunExtension == NULL)
- return;
-
- RemoveEntryList (&LunExtension->List);
-
-
- /* Release LUN extersion data */
-
-
- ExFreePool (LunExtension);
-
- return;
-}
-
+SpiAllocateLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension)
+{
+ PSCSI_PORT_LUN_EXTENSION LunExtension;
+ ULONG LunExtensionSize;
+
+ DPRINT("SpiAllocateLunExtension (%p)\n",
+ DeviceExtension);
+
+ /* Round LunExtensionSize first to the sizeof LONGLONG */
+ LunExtensionSize = (DeviceExtension->LunExtensionSize +
+ sizeof(LONGLONG) - 1) & ~(sizeof(LONGLONG) - 1);
+
+ LunExtensionSize += sizeof(SCSI_PORT_LUN_EXTENSION);
+ DPRINT("LunExtensionSize %lu\n", LunExtensionSize);
+
+ LunExtension = ExAllocatePool(NonPagedPool, LunExtensionSize);
+ if (LunExtension == NULL)
+ {
+ DPRINT1("Out of resources!\n");
+ return NULL;
+ }
+
+ /* Zero everything */
+ RtlZeroMemory(LunExtension, LunExtensionSize);
+
+ /* Initialize a list of requests */
+ InitializeListHead(&LunExtension->SrbInfo.Requests);
+
+ /* TODO: Initialize other fields */
+
+ /* Initialize request queue */
+ KeInitializeDeviceQueue (&LunExtension->DeviceQueue);
+
+ return LunExtension;
+}
static PSCSI_PORT_LUN_EXTENSION
SpiGetLunExtension (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
@@ -1788,248 +1775,519 @@
IN UCHAR TargetId,
IN UCHAR Lun)
{
- PSCSI_PORT_LUN_EXTENSION LunExtension;
- PLIST_ENTRY Entry;
-
- DPRINT("SpiGetLunExtension(%p %u %u %u) called\n",
- DeviceExtension, PathId, TargetId, Lun);
-
- if (IsListEmpty(&DeviceExtension->LunExtensionListHead))
+ PSCSI_PORT_LUN_EXTENSION LunExtension;
+
+ DPRINT("SpiGetLunExtension(%p %u %u %u) called\n",
+ DeviceExtension, PathId, TargetId, Lun);
+
+ /* Get appropriate list */
+ LunExtension = DeviceExtension->LunExtensionList[(TargetId + Lun) % LUS_NUMBER];
+
+ /* Iterate it until we find what we need */
+ while (!LunExtension)
+ {
+ if (LunExtension->TargetId == TargetId &&
+ LunExtension->Lun == Lun &&
+ LunExtension->PathId == PathId)
+ {
+ /* All matches, return */
+ return LunExtension;
+ }
+
+ /* Advance to the next item */
+ LunExtension = LunExtension->Next;
+ }
+
+ /* We did not find anything */
+ DPRINT("Nothing found\n");
return NULL;
-
- Entry = DeviceExtension->LunExtensionListHead.Flink;
- while (Entry != &DeviceExtension->LunExtensionListHead)
- {
- LunExtension = CONTAINING_RECORD(Entry,
- SCSI_PORT_LUN_EXTENSION,
- List);
- if (LunExtension->PathId == PathId &&
- LunExtension->TargetId == TargetId &&
- LunExtension->Lun == Lun)
- {
- return LunExtension;
- }
-
- Entry = Entry->Flink;
- }
-
- return NULL;
}
static NTSTATUS
SpiSendInquiry (IN PDEVICE_OBJECT DeviceObject,
- IN OUT PSCSI_REQUEST_BLOCK Srb)
-{
- IO_STATUS_BLOCK IoStatusBlock;
- PIO_STACK_LOCATION IrpStack;
- PKEVENT Event;
- PIRP Irp;
- NTSTATUS Status;
-
- DPRINT ("SpiSendInquiry() called\n");
-
- Event = ExAllocatePool (NonPagedPool,
- sizeof(KEVENT));
- if (Event == NULL)
- return STATUS_INSUFFICIENT_RESOURCES;
-
- KeInitializeEvent (Event,
- NotificationEvent,
- FALSE);
-
- Irp = IoBuildDeviceIoControlRequest (IOCTL_SCSI_EXECUTE_OUT,
- DeviceObject,
- NULL,
- 0,
- Srb->DataBuffer,
- Srb->DataTransferLength,
- TRUE,
- Event,
- &IoStatusBlock);
- if (Irp == NULL)
- {
- DPRINT("IoBuildDeviceIoControlRequest() failed\n");
- ExFreePool (Event);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- /* Attach Srb to the Irp */
- IrpStack = IoGetNextIrpStackLocation (Irp);
- IrpStack->Parameters.Scsi.Srb = Srb;
- Srb->OriginalRequest = Irp;
-
- /* Call the driver */
- Status = IoCallDriver (DeviceObject,
- Irp);
- if (Status == STATUS_PENDING)
- {
- KeWaitForSingleObject (Event,
- Suspended,
- KernelMode,
- FALSE,
- NULL);
- Status = IoStatusBlock.Status;
- }
-
- ExFreePool (Event);
-
- return Status;
-}
-
-
+ IN PSCSI_LUN_INFO LunInfo)
+{
+ IO_STATUS_BLOCK IoStatusBlock;
+ PIO_STACK_LOCATION IrpStack;
+ KEVENT Event;
+ PIRP Irp;
+ NTSTATUS Status;
+ PINQUIRYDATA InquiryBuffer;
+ PSENSE_DATA SenseBuffer;
+ BOOLEAN KeepTrying = TRUE;
+ ULONG RetryCount = 0;
+ SCSI_REQUEST_BLOCK Srb;
+ PCDB Cdb;
+
+ DPRINT ("SpiSendInquiry() called\n");
+
+ InquiryBuffer = ExAllocatePool (NonPagedPool, INQUIRYDATABUFFERSIZE);
+ if (InquiryBuffer == NULL)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ SenseBuffer = ExAllocatePool (NonPagedPool, SENSE_BUFFER_SIZE);
+ if (SenseBuffer == NULL)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ while (KeepTrying)
+ {
+ /* Initialize event for waiting */
+ KeInitializeEvent(&Event,
+ NotificationEvent,
+ FALSE);
+
+ /* Create an IRP */
+ Irp = IoBuildDeviceIoControlRequest(IOCTL_SCSI_EXECUTE_IN,
+ DeviceObject,
+ NULL,
+ 0,
+ InquiryBuffer,
+ INQUIRYDATABUFFERSIZE,
+ TRUE,
+ &Event,
+ &IoStatusBlock);
+ if (Irp == NULL)
+ {
+ DPRINT("IoBuildDeviceIoControlRequest() failed\n");
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Prepare SRB */
+ RtlZeroMemory(&Srb, sizeof(SCSI_REQUEST_BLOCK));
+
+ Srb.Length = sizeof(SCSI_REQUEST_BLOCK);
+ Srb.OriginalRequest = Irp;
+ Srb.PathId = LunInfo->PathId;
+ Srb.TargetId = LunInfo->TargetId;
+ Srb.Lun = LunInfo->Lun;
+ Srb.Function = SRB_FUNCTION_EXECUTE_SCSI;
+ Srb.SrbFlags = SRB_FLAGS_DATA_IN | SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
+ Srb.TimeOutValue = 4;
+ Srb.CdbLength = 6;
+
+ Srb.SenseInfoBuffer = SenseBuffer;
+ Srb.SenseInfoBufferLength = SENSE_BUFFER_SIZE;
+
+ Srb.DataBuffer = InquiryBuffer;
+ Srb.DataTransferLength = INQUIRYDATABUFFERSIZE;
+
+ /* Attach Srb to the Irp */
+ IrpStack = IoGetNextIrpStackLocation (Irp);
+ IrpStack->Parameters.Scsi.Srb = &Srb;
+
+ /* Fill in CDB */
+ Cdb = (PCDB)Srb.Cdb;
+ Cdb->CDB6INQUIRY.LogicalUnitNumber = LunInfo->Lun;
+ Cdb->CDB6INQUIRY.AllocationLength = INQUIRYDATABUFFERSIZE;
+
+ /* Call the driver */
+ Status = IoCallDriver(DeviceObject, Irp);
+
+ /* Wait for it to complete */
+ if (Status == STATUS_PENDING)
+ {
+ KeWaitForSingleObject(&Event,
+ Executive,
+ KernelMode,
+ FALSE,
+ NULL);
+ Status = IoStatusBlock.Status;
+ }
+
+ if (SRB_STATUS(Srb.SrbStatus) == SRB_STATUS_SUCCESS)
+ {
+ /* All fine, copy data over */
+ RtlCopyMemory(LunInfo->InquiryData,
+ InquiryBuffer,
+ INQUIRYDATABUFFERSIZE);
+
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ /* Check if queue is frozen */
+ if (Srb.SrbStatus & SRB_STATUS_QUEUE_FROZEN)
+ {
+ /* Something weird happeend */
+ ASSERT(FALSE);
+ }
+
+ /* Check if data overrun happened */
+ if (SRB_STATUS(Srb.SrbStatus) == SRB_STATUS_DATA_OVERRUN)
+ {
+ /* TODO: Implement */
+ ASSERT(FALSE);
+ }
+ else if ((Srb.SrbStatus & SRB_STATUS_AUTOSENSE_VALID) &&
+ SenseBuffer->SenseKey == SCSI_SENSE_ILLEGAL_REQUEST)
+ {
+ /* LUN is not valid, but some device responds there.
+ Mark it as invalid anyway */
+
+ Status = STATUS_INVALID_DEVICE_REQUEST;
+ }
+ else
+ {
+ /* Retry a couple of times if no timeout happened */
+ if ((RetryCount < 2) &&
+ (SRB_STATUS(Srb.SrbStatus) != SRB_STATUS_NO_DEVICE) &&
+ (SRB_STATUS(Srb.SrbStatus) != SRB_STATUS_SELECTION_TIMEOUT))
+ {
+ RetryCount++;
+ KeepTrying = TRUE;
+ }
+ else
+ {
+ /* That's all, go to exit */
+ KeepTrying = FALSE;
+
+ /* Set status according to SRB status */
+ if (SRB_STATUS(Srb.SrbStatus) == SRB_STATUS_BAD_FUNCTION ||
+ SRB_STATUS(Srb.SrbStatus) == SRB_STATUS_BAD_SRB_BLOCK_LENGTH)
+ {
+ Status = STATUS_INVALID_DEVICE_REQUEST;
+ }
+ else
+ {
+ Status = STATUS_IO_DEVICE_ERROR;
+ }
+ }
+ }
+ }
+ }
+
+ /* Free buffers */
+ ExFreePool(InquiryBuffer);
+ ExFreePool(SenseBuffer);
+
+ return Status;
+}
+
+
+/* Scans all SCSI buses */
static VOID
-SpiScanAdapter (IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension)
-{
- PSCSI_PORT_LUN_EXTENSION LunExtension;
- SCSI_REQUEST_BLOCK Srb;
- PCDB Cdb;
- ULONG Bus;
- ULONG Target;
- ULONG Lun;
- NTSTATUS Status;
-
- DPRINT ("SpiScanAdapter() called\n");
-
- RtlZeroMemory(&Srb,
- sizeof(SCSI_REQUEST_BLOCK));
- Srb.SrbFlags = SRB_FLAGS_DATA_IN;
- Srb.DataBuffer = ExAllocatePool(NonPagedPool, 256);
- Srb.Function = SRB_FUNCTION_EXECUTE_SCSI;
- Srb.DataTransferLength = 255; //256;
- Srb.CdbLength = 6;
-
- Cdb = (PCDB) &Srb.Cdb;
-
- Cdb->CDB6INQUIRY.OperationCode = SCSIOP_INQUIRY;
- Cdb->CDB6INQUIRY.AllocationLength = 255;
-
- for (Bus = 0; Bus < DeviceExtension->PortConfig->NumberOfBuses; Bus++)
- {
- Srb.PathId = Bus;
-
- for (Target = 0; Target <
DeviceExtension->PortConfig->MaximumNumberOfTargets; Target++)
- {
- Srb.TargetId = Target;
-
- for (Lun = 0; Lun < SCSI_MAXIMUM_LOGICAL_UNITS; Lun++)
- {
- Srb.Lun = Lun;
- Srb.SrbStatus = SRB_STATUS_SUCCESS;
-
- Cdb->CDB6INQUIRY.LogicalUnitNumber = Lun;
-
- LunExtension = SpiAllocateLunExtension (DeviceExtension,
- Bus,
- Target,
- Lun);
- if (LunExtension == NULL)
- {
- DPRINT("Failed to allocate the LUN extension!\n");
- ExFreePool(Srb.DataBuffer);
- return;
- }
-
- Status = SpiSendInquiry (DeviceExtension->DeviceObject,
- &Srb);
- DPRINT ("Status %lx Srb.SrbStatus %x\n", Status, Srb.SrbStatus);
-
- if (NT_SUCCESS(Status) &&
- (Srb.SrbStatus == SRB_STATUS_SUCCESS ||
- Srb.SrbStatus == SRB_STATUS_DATA_OVERRUN) &&
- ((PINQUIRYDATA)Srb.DataBuffer)->DeviceTypeQualifier == 0)
- {
- /* Copy inquiry data */
- RtlCopyMemory (&LunExtension->InquiryData,
- Srb.DataBuffer,
- sizeof(INQUIRYDATA));
- }
- else
- {
- SpiRemoveLunExtension (LunExtension);
- }
- }
- }
- }
-
- ExFreePool(Srb.DataBuffer);
-
- DPRINT ("SpiScanAdapter() done\n");
-}
-
-
-static ULONG
+SpiScanAdapter(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension)
+{
+ PSCSI_PORT_LUN_EXTENSION LunExtension;
+ ULONG Bus;
+ ULONG Target;
+ ULONG Lun;
+ PSCSI_BUS_SCAN_INFO BusScanInfo;
+ PSCSI_LUN_INFO LastLunInfo, LunInfo, LunInfoExists;
+ BOOLEAN DeviceExists;
+ ULONG Hint;
+ NTSTATUS Status;
+ ULONG DevicesFound;
+
+ DPRINT ("SpiScanAdapter() called\n");
+
+ /* Scan all buses */
+ for (Bus = 0; Bus < DeviceExtension->PortConfig->NumberOfBuses; Bus++)
+ {
+ DevicesFound = 0;
+
+ /* Get pointer to the scan information */
+ BusScanInfo = DeviceExtension->BusesConfig->BusScanInfo[Bus];
+
+ if (BusScanInfo)
+ {
+ /* Find the last LUN info in the list */
+ LunInfo = DeviceExtension->BusesConfig->BusScanInfo[Bus]->LunInfo;
+ LastLunInfo = LunInfo;
+
+ while (LunInfo != NULL)
+ {
+ LastLunInfo = LunInfo;
+ LunInfo = LunInfo->Next;
+ }
+ }
+ else
+ {
+ /* We need to allocate this buffer */
+ BusScanInfo = ExAllocatePool(NonPagedPool, sizeof(SCSI_BUS_SCAN_INFO));
+
+ if (!BusScanInfo)
+ {
+ DPRINT1("Out of resources!\n");
+ return;
+ }
+
+ /* Fill this struct (length and bus ids for now) */
+ BusScanInfo->Length = sizeof(SCSI_BUS_SCAN_INFO);
+ BusScanInfo->LogicalUnitsCount = 0;
+ BusScanInfo->BusIdentifier =
DeviceExtension->PortConfig->InitiatorBusId[Bus];
+ BusScanInfo->LunInfo = NULL;
+
+ /* Set pointer to the last LUN info to NULL */
+ LastLunInfo = NULL;
+ }
+
+ /* Create LUN information structure */
+ LunInfo = ExAllocatePool(PagedPool, sizeof(SCSI_LUN_INFO));
+
+ if (LunInfo == NULL)
+ {
+ DPRINT1("Out of resources!\n");
+ return;
+ }
+
+ RtlZeroMemory(LunInfo, sizeof(SCSI_LUN_INFO));
+
+ /* Create LunExtension */
+ LunExtension = SpiAllocateLunExtension (DeviceExtension);
+
+ /* And send INQUIRY to every target */
+ for (Target = 0; Target <
DeviceExtension->PortConfig->MaximumNumberOfTargets; Target++)
+ {
+ /* TODO: Support scan bottom-up */
+
+ /* Skip if it's the same address */
+ if (Target == BusScanInfo->BusIdentifier)
+ continue;
+
+ /* Try to find an existing device here */
+ DeviceExists = FALSE;
+ LunInfoExists = BusScanInfo->LunInfo;
+
+ /* Find matching address on this bus */
+ while (LunInfoExists)
+ {
+ if (LunInfoExists->TargetId == Target)
+ {
+ DeviceExists = TRUE;
+ break;
+ }
+
+ /* Advance to the next one */
+ LunInfoExists = LunInfoExists->Next;
+ }
+
+ /* No need to bother rescanning, since we already did that before */
+ if (DeviceExists)
+ continue;
+
+ /* Scan all logical units */
+ for (Lun = 0; Lun < SCSI_MAXIMUM_LOGICAL_UNITS; Lun++)
+ {
+ if (!LunExtension)
+ break;
+
+ /* Add extension to the list */
+ Hint = (Target + Lun) % LUS_NUMBER;
+ LunExtension->Next = DeviceExtension->LunExtensionList[Hint];
+ DeviceExtension->LunExtensionList[Hint] = LunExtension;
+
+ /* Fill Path, Target, Lun fields */
+ LunExtension->PathId = LunInfo->PathId = Bus;
+ LunExtension->TargetId = LunInfo->TargetId = Target;
+ LunExtension->Lun = LunInfo->Lun = Lun;
+
+ /* Set flag to prevent race conditions */
+ LunExtension->Flags |= SCSI_PORT_SCAN_IN_PROGRESS;
+
+ /* Zero LU extension contents */
+ if (DeviceExtension->LunExtensionSize)
+ {
+ RtlZeroMemory(LunExtension + 1,
+ DeviceExtension->LunExtensionSize);
+ }
+
+ /* Finally send the inquiry command */
+ Status = SpiSendInquiry(DeviceExtension->DeviceObject, LunInfo);
+
+ if (NT_SUCCESS(Status))
+ {
+ /* Let's see if we really found a device */
+ PINQUIRYDATA InquiryData = (PINQUIRYDATA)LunInfo->InquiryData;
+
+ /* Check if this device is unsupported */
+ if (InquiryData->DeviceTypeQualifier ==
DEVICE_QUALIFIER_NOT_SUPPORTED)
+ {
+ DeviceExtension->LunExtensionList[Hint] =
+ DeviceExtension->LunExtensionList[Hint]->Next;
+
+ continue;
+ }
+
+ /* Clear the "in scan" flag */
+ LunExtension->Flags &= ~SCSI_PORT_SCAN_IN_PROGRESS;
+
+ DPRINT("SpiScanAdapter(): Found device of type %d at bus %d tid
%d lun %d\n",
+ InquiryData->DeviceType, Bus, Target, Lun);
+
+ /* Add this info to the linked list */
+ LunInfo->Next = NULL;
+ if (LastLunInfo)
+ LastLunInfo->Next = LunInfo;
+ else
+ BusScanInfo->LunInfo = LunInfo;
+
+ /* Store the last LUN info */
+ LastLunInfo = LunInfo;
+
+ /* Store DeviceObject */
+ LunInfo->DeviceObject = DeviceExtension->DeviceObject;
+
+ /* Allocate another buffer */
+ LunInfo = ExAllocatePool(PagedPool, sizeof(SCSI_LUN_INFO));
+
+ if (!LunInfo)
+ {
+ DPRINT1("Out of resources!\n");
+ break;
+ }
+
+ RtlZeroMemory(LunInfo, sizeof(SCSI_LUN_INFO));
+
+ /* Create a new LU extension */
+ LunExtension = SpiAllocateLunExtension(DeviceExtension);
+
+ DevicesFound++;
+ }
+ else
+ {
+ /* Remove this LUN from the list */
+ DeviceExtension->LunExtensionList[Hint] =
+ DeviceExtension->LunExtensionList[Hint]->Next;
+
+ /* Decide whether we are continuing or not */
+ if (Status == STATUS_INVALID_DEVICE_REQUEST)
+ continue;
+ else
+ break;
+ }
+ }
+ }
+
+ /* Free allocated buffers */
+ if (LunExtension)
+ ExFreePool(LunExtension);
+
+ if (LunInfo)
+ ExFreePool(LunInfo);
+
+ /* Sum what we found */
+ BusScanInfo->LogicalUnitsCount += DevicesFound;
+ }
+
+ DPRINT ("SpiScanAdapter() done\n");
+}
+
+
+static NTSTATUS
SpiGetInquiryData(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
- OUT PSCSI_ADAPTER_BUS_INFO AdapterBusInfo)
-{
- PSCSI_PORT_LUN_EXTENSION LunExtension;
- PSCSI_INQUIRY_DATA UnitInfo, PrevUnit;
- ULONG Bus;
- ULONG Target;
- ULONG Lun;
- ULONG UnitCount;
-
- DPRINT("SpiGetInquiryData() called\n");
-
- /* Copy inquiry data to the port device extension */
- AdapterBusInfo->NumberOfBuses = DeviceExtension->PortConfig->NumberOfBuses;
-
- UnitInfo = (PSCSI_INQUIRY_DATA)
- ((PUCHAR)AdapterBusInfo + sizeof(SCSI_ADAPTER_BUS_INFO) +
- (sizeof(SCSI_BUS_DATA) * (AdapterBusInfo->NumberOfBuses - 1)));
-
- for (Bus = 0; Bus < AdapterBusInfo->NumberOfBuses; Bus++)
- {
- AdapterBusInfo->BusData[Bus].InitiatorBusId =
- DeviceExtension->PortConfig->InitiatorBusId[Bus];
- AdapterBusInfo->BusData[Bus].InquiryDataOffset =
- (ULONG)((PUCHAR)UnitInfo - (PUCHAR)AdapterBusInfo);
-
- PrevUnit = NULL;
- UnitCount = 0;
-
- for (Target = 0; Target <
DeviceExtension->PortConfig->MaximumNumberOfTargets; Target++)
- {
- for (Lun = 0; Lun < SCSI_MAXIMUM_LOGICAL_UNITS; Lun++)
- {
- LunExtension = SpiGetLunExtension(DeviceExtension,
- Bus,
- Target,
- Lun);
- if (LunExtension != NULL)
- {
- DPRINT("(Bus %lu Target %lu Lun %lu)\n",
- Bus, Target, Lun);
-
- UnitInfo->PathId = Bus;
- UnitInfo->TargetId = Target;
- UnitInfo->Lun = Lun;
- UnitInfo->InquiryDataLength = INQUIRYDATABUFFERSIZE;
- RtlCopyMemory (&UnitInfo->InquiryData,
- &LunExtension->InquiryData,
- INQUIRYDATABUFFERSIZE);
- if (PrevUnit != NULL)
- {
- PrevUnit->NextInquiryDataOffset =
- (ULONG)((ULONG_PTR)UnitInfo-(ULONG_PTR)AdapterBusInfo);
- }
- PrevUnit = UnitInfo;
- UnitInfo = (PSCSI_INQUIRY_DATA)((PUCHAR)UnitInfo +
sizeof(SCSI_INQUIRY_DATA)+INQUIRYDATABUFFERSIZE-1);
- UnitCount++;
- }
- }
- }
- DPRINT("UnitCount: %lu\n", UnitCount);
- AdapterBusInfo->BusData[Bus].NumberOfLogicalUnits = UnitCount;
- if (UnitCount == 0)
- {
- AdapterBusInfo->BusData[Bus].InquiryDataOffset = 0;
- }
- }
-
- DPRINT("Data size: %lu\n", (ULONG)UnitInfo - (ULONG)AdapterBusInfo);
-
- return (ULONG)((PUCHAR)UnitInfo-(PUCHAR)AdapterBusInfo);
+ PIRP Irp)
+{
+ ULONG InquiryDataSize;
+ PSCSI_LUN_INFO LunInfo;
+ ULONG BusCount, LunCount, Length;
+ PIO_STACK_LOCATION IrpStack;
+ PSCSI_ADAPTER_BUS_INFO AdapterBusInfo;
+ PSCSI_INQUIRY_DATA InquiryData;
+ PSCSI_BUS_DATA BusData;
+ ULONG Bus;
+ PUCHAR Buffer;
+
+ DPRINT("SpiGetInquiryData() called\n");
+
+ /* Get pointer to the buffer */
+ IrpStack = IoGetCurrentIrpStackLocation(Irp);
+ Buffer = Irp->AssociatedIrp.SystemBuffer;
+
+ /* Initialize bus and LUN counters */
+ BusCount = DeviceExtension->BusesConfig->NumberOfBuses;
+ LunCount = 0;
+
+ /* Calculate total number of LUNs */
+ for (Bus = 0; Bus < BusCount; Bus++)
+ LunCount +=
DeviceExtension->BusesConfig->BusScanInfo[Bus]->LogicalUnitsCount;
+
+ /* Calculate size of inquiry data, rounding up to sizeof(ULONG) */
+ InquiryDataSize =
+ ((sizeof(SCSI_INQUIRY_DATA) - 1 + INQUIRYDATABUFFERSIZE +
+ sizeof(ULONG) - 1) & ~(sizeof(ULONG) - 1));
+
+ /* Calculate data size */
+ Length = sizeof(SCSI_ADAPTER_BUS_INFO) + (BusCount - 1) *
+ sizeof(SCSI_BUS_DATA);
+
+ Length += InquiryDataSize * LunCount;
+
+ /* Check, if all data is going to fit into provided buffer */
+ if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength < Length)
+ {
+ Irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
+ return STATUS_BUFFER_TOO_SMALL;
+ }
+
+ /* Store data size in the IRP */
+ Irp->IoStatus.Information = Length;
+
+ DPRINT("Data size: %lu\n", Length);
+
+ AdapterBusInfo = (PSCSI_ADAPTER_BUS_INFO)Buffer;
+
+ AdapterBusInfo->NumberOfBuses = (UCHAR)BusCount;
+
+ /* Point InquiryData to the corresponding place inside Buffer */
+ InquiryData = (PSCSI_INQUIRY_DATA)(Buffer + sizeof(SCSI_ADAPTER_BUS_INFO) +
+ (BusCount - 1) * sizeof(SCSI_BUS_DATA));
+
+ /* Loop each bus */
+ for (Bus = 0; Bus < BusCount; Bus++)
+ {
+ BusData = &AdapterBusInfo->BusData[Bus];
+
+ /* Calculate and save an offset of the inquiry data */
+ BusData->InquiryDataOffset = (PUCHAR)InquiryData - Buffer;
+
+ /* Get a pointer to the LUN information structure */
+ LunInfo = DeviceExtension->BusesConfig->BusScanInfo[Bus]->LunInfo;
+
+ /* Store Initiator Bus Id */
+ BusData->InitiatorBusId =
+ DeviceExtension->BusesConfig->BusScanInfo[Bus]->BusIdentifier;
+
+ /* Store LUN count */
+ BusData->NumberOfLogicalUnits =
+ DeviceExtension->BusesConfig->BusScanInfo[Bus]->LogicalUnitsCount;
+
+ /* Loop all LUNs */
+ while (LunInfo != NULL)
+ {
+ DPRINT("(Bus %lu Target %lu Lun %lu)\n",
+ Bus, LunInfo->TargetId, LunInfo->Lun);
+
+ /* Fill InquiryData with values */
+ InquiryData->PathId = LunInfo->PathId;
+ InquiryData->TargetId = LunInfo->TargetId;
+ InquiryData->Lun = LunInfo->Lun;
+ InquiryData->InquiryDataLength = INQUIRYDATABUFFERSIZE;
+ InquiryData->DeviceClaimed = LunInfo->DeviceClaimed;
+ InquiryData->NextInquiryDataOffset =
+ (PUCHAR)InquiryData + InquiryDataSize - Buffer;
+
+ /* Copy data in it */
+ RtlCopyMemory(InquiryData->InquiryData,
+ LunInfo->InquiryData,
+ INQUIRYDATABUFFERSIZE);
+
+ /* Move to the next LUN */
+ LunInfo = LunInfo->Next;
+ InquiryData = (PSCSI_INQUIRY_DATA) ((PCHAR)InquiryData + InquiryDataSize);
+ }
+
+ /* Either mark the end, or set offset to 0 */
+ if (BusData->NumberOfLogicalUnits != 0)
+ ((PSCSI_INQUIRY_DATA) ((PCHAR) InquiryData -
InquiryDataSize))->NextInquiryDataOffset = 0;
+ else
+ BusData->InquiryDataOffset = 0;
+ }
+
+ /* Finish with success */
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ return STATUS_SUCCESS;
}
Modified: trunk/reactos/drivers/storage/scsiport-new/scsiport_int.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/scsiport-n…
==============================================================================
--- trunk/reactos/drivers/storage/scsiport-new/scsiport_int.h (original)
+++ trunk/reactos/drivers/storage/scsiport-new/scsiport_int.h Wed Mar 28 01:15:09 2007
@@ -15,6 +15,12 @@
#endif
#define TAG(A, B, C, D) (ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) +
((D)<<24))
+
+/* Defines how many logical unit arrays will be in a device extension */
+#define LUS_NUMBER 8
+
+/* Flags */
+#define SCSI_PORT_SCAN_IN_PROGRESS 0x8000
typedef enum _SCSI_PORT_TIMER_STATES
{
@@ -35,14 +41,20 @@
ULONG SystemIoBusNumber;
} SCSI_PORT_DEVICE_BASE, *PSCSI_PORT_DEVICE_BASE;
+typedef struct _SCSI_REQUEST_BLOCK_INFO
+{
+ LIST_ENTRY Requests;
+} SCSI_REQUEST_BLOCK_INFO, *PSCSI_REQUEST_BLOCK_INFO;
typedef struct _SCSI_PORT_LUN_EXTENSION
{
- LIST_ENTRY List;
-
UCHAR PathId;
UCHAR TargetId;
UCHAR Lun;
+
+ ULONG Flags;
+
+ struct _SCSI_PORT_LUN_EXTENSION *Next;
BOOLEAN DeviceClaimed;
PDEVICE_OBJECT DeviceObject;
@@ -51,11 +63,39 @@
KDEVICE_QUEUE DeviceQueue;
+ SCSI_REQUEST_BLOCK_INFO SrbInfo;
+
/* More data? */
UCHAR MiniportLunExtension[1]; /* must be the last entry */
} SCSI_PORT_LUN_EXTENSION, *PSCSI_PORT_LUN_EXTENSION;
+/* Structures for inquiries support */
+
+typedef struct _SCSI_LUN_INFO
+{
+ UCHAR PathId;
+ UCHAR TargetId;
+ UCHAR Lun;
+ BOOLEAN DeviceClaimed;
+ PVOID DeviceObject;
+ struct _SCSI_LUN_INFO *Next;
+ UCHAR InquiryData[INQUIRYDATABUFFERSIZE];
+} SCSI_LUN_INFO, *PSCSI_LUN_INFO;
+
+typedef struct _SCSI_BUS_SCAN_INFO
+{
+ USHORT Length;
+ UCHAR LogicalUnitsCount;
+ UCHAR BusIdentifier;
+ PSCSI_LUN_INFO LunInfo;
+} SCSI_BUS_SCAN_INFO, *PSCSI_BUS_SCAN_INFO;
+
+typedef struct _BUSES_CONFIGURATION_INFORMATION
+{
+ UCHAR NumberOfBuses;
+ PSCSI_BUS_SCAN_INFO BusScanInfo[1];
+} BUSES_CONFIGURATION_INFORMATION, *PBUSES_CONFIGURATION_INFORMATION;
/*
* SCSI_PORT_DEVICE_EXTENSION
@@ -70,6 +110,7 @@
ULONG Length;
ULONG MiniPortExtensionSize;
PPORT_CONFIGURATION_INFORMATION PortConfig;
+ PBUSES_CONFIGURATION_INFORMATION BusesConfig;
ULONG PortNumber;
KSPIN_LOCK IrpLock;
@@ -84,7 +125,7 @@
LIST_ENTRY DeviceBaseListHead;
ULONG LunExtensionSize;
- LIST_ENTRY LunExtensionListHead;
+ PSCSI_PORT_LUN_EXTENSION LunExtensionList[LUS_NUMBER];
ULONG SrbExtensionSize;
6387
days inactive
6387
days old
0 comments
1 participants
participants (1)
-
fireball＠svn.reactos.org