[reactos] 07/17: [USBSTOR] Refactor request issue code. Pipe handle selection now made more correctly. Simplified an MDL allocation for a request.
11 Jun
2019
11 Jun
'19
1:39 a.m.
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=c452f7dab49f815ccd504…
commit c452f7dab49f815ccd5048d8d261dfbf1843c341
Author: Victor Perevertkin <victor(a)perevertkin.ru>
AuthorDate: Mon Apr 1 01:07:55 2019 +0300
Commit: Victor Perevertkin <victor(a)perevertkin.ru>
CommitDate: Tue Jun 11 04:39:43 2019 +0300
[USBSTOR] Refactor request issue code.
Pipe handle selection now made more correctly.
Simplified an MDL allocation for a request.
---
drivers/usb/usbstor/error.c | 2 +-
drivers/usb/usbstor/scsi.c | 372 ++++++++++++++++++------------------------
drivers/usb/usbstor/usbstor.h | 14 +-
3 files changed, 162 insertions(+), 226 deletions(-)
diff --git a/drivers/usb/usbstor/error.c b/drivers/usb/usbstor/error.c
index 0256c741a64..3ae8a3bfca4 100644
--- a/drivers/usb/usbstor/error.c
+++ b/drivers/usb/usbstor/error.c
@@ -160,7 +160,7 @@ USBSTOR_ResetHandlerWorkItemRoutine(
DPRINT1("USBSTOR_ResetPipeWithHandle Status %x\n", Status);
// now resend the csw as the stall got cleared
- USBSTOR_SendCSW(WorkItemData->Context, WorkItemData->Irp);
+ USBSTOR_SendCSWRequest(WorkItemData->Context, WorkItemData->Irp);
}
VOID
diff --git a/drivers/usb/usbstor/scsi.c b/drivers/usb/usbstor/scsi.c
index f563f77fa8e..5411468a0a9 100644
--- a/drivers/usb/usbstor/scsi.c
+++ b/drivers/usb/usbstor/scsi.c
@@ -55,27 +55,45 @@ USBSTOR_SrbStatusToNtStatus(
}
}
+static
NTSTATUS
-USBSTOR_BuildCBW(
- IN ULONG Tag,
- IN ULONG DataTransferLength,
- IN UCHAR LUN,
- IN UCHAR CommandBlockLength,
- IN PUCHAR CommandBlock,
- IN OUT PCBW Control)
+USBSTOR_IssueBulkOrInterruptRequest(
+ IN PFDO_DEVICE_EXTENSION FDODeviceExtension,
+ IN PIRP Irp,
+ IN USBD_PIPE_HANDLE PipeHandle,
+ IN ULONG TransferFlags,
+ IN ULONG TransferBufferLength,
+ IN PVOID TransferBuffer,
+ IN PMDL TransferBufferMDL,
+ IN PIO_COMPLETION_ROUTINE CompletionRoutine,
+ IN PIRP_CONTEXT Context)
{
- ASSERT(CommandBlockLength <= 16);
+ PIO_STACK_LOCATION NextStack;
+
+ RtlZeroMemory(&Context->Urb, sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER));
+
+ Context->Urb.UrbHeader.Length = sizeof(struct _URB_BULK_OR_INTERRUPT_TRANSFER);
+ Context->Urb.UrbHeader.Function = URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER;
- Control->Signature = CBW_SIGNATURE;
- Control->Tag = Tag;
- Control->DataTransferLength = DataTransferLength;
- Control->Flags = (CommandBlock[0] != SCSIOP_WRITE) ? 0x80 : 0x00;
- Control->LUN = (LUN & MAX_LUN);
- Control->CommandBlockLength = CommandBlockLength;
+ Context->Urb.UrbBulkOrInterruptTransfer.PipeHandle = PipeHandle;
+ Context->Urb.UrbBulkOrInterruptTransfer.TransferFlags = TransferFlags;
+ Context->Urb.UrbBulkOrInterruptTransfer.TransferBufferLength =
TransferBufferLength;
+ Context->Urb.UrbBulkOrInterruptTransfer.TransferBuffer = TransferBuffer;
+ Context->Urb.UrbBulkOrInterruptTransfer.TransferBufferMDL = TransferBufferMDL;
- RtlCopyMemory(Control->CommandBlock, CommandBlock, CommandBlockLength);
+ NextStack = IoGetNextIrpStackLocation(Irp);
+ NextStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
+ NextStack->Parameters.DeviceIoControl.IoControlCode =
IOCTL_INTERNAL_USB_SUBMIT_URB;
+ NextStack->Parameters.Others.Argument1 = &Context->Urb;
- return STATUS_SUCCESS;
+ IoSetCompletionRoutine(Irp,
+ CompletionRoutine,
+ Context,
+ TRUE,
+ TRUE,
+ TRUE);
+
+ return IoCallDriver(FDODeviceExtension->LowerDeviceObject, Irp);
}
PIRP_CONTEXT
@@ -170,11 +188,6 @@ USBSTOR_CSWCompletionRoutine(
Context = (PIRP_CONTEXT)Ctx;
- if (Context->TransferBufferMDL && Context->TransferBufferMDL !=
Context->Irp->MdlAddress)
- {
- IoFreeMdl(Context->TransferBufferMDL);
- }
-
DPRINT("USBSTOR_CSWCompletionRoutine Irp %p Ctx %p Status %x\n", Irp, Ctx,
Irp->IoStatus.Status);
// first check for Irp errors
@@ -274,35 +287,20 @@ USBSTOR_CSWCompletionRoutine(
return Status;
}
-VOID
-USBSTOR_SendCSW(
+NTSTATUS
+USBSTOR_SendCSWRequest(
PIRP_CONTEXT Context,
PIRP Irp)
{
- PIO_STACK_LOCATION IoStack;
-
- IoStack = IoGetNextIrpStackLocation(Irp);
-
- // now initialize the urb for sending the csw
- UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
- sizeof(struct
_URB_BULK_OR_INTERRUPT_TRANSFER),
-
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle,
- Context->csw,
- NULL,
- 512, //FIXME
- USBD_TRANSFER_DIRECTION_IN |
USBD_SHORT_TRANSFER_OK,
- NULL);
-
- // initialize stack location
- IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
- IoStack->Parameters.DeviceIoControl.IoControlCode =
IOCTL_INTERNAL_USB_SUBMIT_URB;
- IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
- IoStack->Parameters.DeviceIoControl.InputBufferLength =
Context->Urb.UrbHeader.Length;
- Irp->IoStatus.Status = STATUS_SUCCESS;
-
- IoSetCompletionRoutine(Irp, USBSTOR_CSWCompletionRoutine, Context, TRUE, TRUE,
TRUE);
-
- IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
+ return USBSTOR_IssueBulkOrInterruptRequest(Context->FDODeviceExtension,
+ Irp,
+
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle,
+ USBD_TRANSFER_DIRECTION_IN,
+ sizeof(CSW),
+ Context->csw,
+ NULL,
+ USBSTOR_CSWCompletionRoutine,
+ Context);
}
IO_COMPLETION_ROUTINE USBSTOR_DataCompletionRoutine;
@@ -316,13 +314,19 @@ USBSTOR_DataCompletionRoutine(
{
PIRP_CONTEXT Context;
NTSTATUS Status;
-
+ PIO_STACK_LOCATION IoStack;
+ PSCSI_REQUEST_BLOCK Request;
DPRINT("USBSTOR_DataCompletionRoutine Irp %p Ctx %p Status %x\n", Irp, Ctx,
Irp->IoStatus.Status);
Context = (PIRP_CONTEXT)Ctx;
- PIO_STACK_LOCATION IoStack = IoGetCurrentIrpStackLocation(Irp);
- PSCSI_REQUEST_BLOCK Request = IoStack->Parameters.Scsi.Srb;
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+ Request = IoStack->Parameters.Scsi.Srb;
+
+ if (Context->Urb.UrbBulkOrInterruptTransfer.TransferBufferMDL !=
Irp->MdlAddress)
+ {
+ IoFreeMdl(Context->Urb.UrbBulkOrInterruptTransfer.TransferBufferMDL);
+ }
if (NT_SUCCESS(Irp->IoStatus.Status))
{
@@ -336,7 +340,7 @@ USBSTOR_DataCompletionRoutine(
}
Request->DataTransferLength =
Context->Urb.UrbBulkOrInterruptTransfer.TransferBufferLength;
- USBSTOR_SendCSW(Context, Irp);
+ USBSTOR_SendCSWRequest(Context, Irp);
}
else if (USBD_STATUS(Context->Urb.UrbHeader.Status) ==
USBD_STATUS(USBD_STATUS_STALL_PID))
{
@@ -373,8 +377,11 @@ USBSTOR_CBWCompletionRoutine(
PIRP_CONTEXT Context;
PIO_STACK_LOCATION IoStack;
PSCSI_REQUEST_BLOCK Request;
- UCHAR Code;
USBD_PIPE_HANDLE PipeHandle;
+ ULONG TransferFlags;
+ PMDL Mdl = NULL;
+ PVOID TransferBuffer = NULL;
+ NTSTATUS Status;
DPRINT("USBSTOR_CBWCompletionRoutine Irp %p Ctx %p Status %x\n", Irp, Ctx,
Irp->IoStatus.Status);
@@ -384,73 +391,79 @@ USBSTOR_CBWCompletionRoutine(
if (!NT_SUCCESS(Irp->IoStatus.Status))
{
- // perform reset recovery
- Context->ErrorIndex = 2;
- Status = USBSTOR_QueueWorkItem(Context, NULL);
- ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
+ goto ResetRecovery;
+ }
+
+ // a request without the buffer
+ if (!Irp->MdlAddress)
+ {
+ Request->SrbStatus = SRB_STATUS_SUCCESS;
+ USBSTOR_SendCSWRequest(Context, Irp);
return STATUS_MORE_PROCESSING_REQUIRED;
}
- // is there data to be submitted
- if (Context->TransferDataLength)
+ // a request with the data buffer
+
+ if ((Request->SrbFlags & SRB_FLAGS_UNSPECIFIED_DIRECTION) ==
SRB_FLAGS_DATA_IN)
+ {
+ PipeHandle =
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle;
+ TransferFlags = USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK;
+ }
+ else if ((Request->SrbFlags & SRB_FLAGS_UNSPECIFIED_DIRECTION) ==
SRB_FLAGS_DATA_OUT)
+ {
+ PipeHandle =
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkOutPipeIndex].PipeHandle;
+ TransferFlags = USBD_TRANSFER_DIRECTION_OUT;
+ }
+ else
{
- // get command code
- Code = Context->cbw->CommandBlock[0];
+ // we check the validity of a request in disk.c so we should never be here
+ DPRINT1("Warning: shouldn't be here\n");
+ goto ResetRecovery;
+ }
- if (Code == SCSIOP_WRITE)
+ if (MmGetMdlVirtualAddress(Irp->MdlAddress) == Request->DataBuffer)
{
- // write request - use bulk out pipe
- PipeHandle =
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkOutPipeIndex].PipeHandle;
+ Mdl = Irp->MdlAddress;
}
else
{
- // default bulk in pipe
- PipeHandle =
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle;
+ Mdl = IoAllocateMdl(Request->DataBuffer,
+ Request->DataTransferLength,
+ FALSE,
+ FALSE,
+ NULL);
+
+ if (Mdl)
+ {
+ IoBuildPartialMdl(Irp->MdlAddress,
+ Mdl,
+ Request->DataBuffer,
+ Request->DataTransferLength);
+ }
}
- // now initialize the urb for sending data
- UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
- sizeof(struct
_URB_BULK_OR_INTERRUPT_TRANSFER),
- PipeHandle,
- NULL,
- Context->TransferBufferMDL,
- Context->TransferDataLength,
- ((Code == SCSIOP_WRITE) ?
USBD_TRANSFER_DIRECTION_OUT : (USBD_TRANSFER_DIRECTION_IN | USBD_SHORT_TRANSFER_OK)),
- NULL);
-
- IoSetCompletionRoutine(Irp, USBSTOR_DataCompletionRoutine, Context, TRUE, TRUE,
TRUE);
- }
- else
- {
- if (NT_SUCCESS(Irp->IoStatus.Status))
+ if (!Mdl)
{
- Request->SrbStatus = SRB_STATUS_SUCCESS;
+ DPRINT1("USBSTOR_DataTransfer: Mdl - %p\n", Mdl);
+ goto ResetRecovery;
}
- // now initialize the urb for sending the csw
- UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
- sizeof(struct
_URB_BULK_OR_INTERRUPT_TRANSFER),
-
Context->FDODeviceExtension->InterfaceInformation->Pipes[Context->FDODeviceExtension->BulkInPipeIndex].PipeHandle,
- Context->csw,
- NULL,
- 512, //FIXME
- USBD_TRANSFER_DIRECTION_IN |
USBD_SHORT_TRANSFER_OK,
- NULL);
-
- IoSetCompletionRoutine(Irp, USBSTOR_CSWCompletionRoutine, Context, TRUE, TRUE,
TRUE);
- }
-
- IoStack = IoGetNextIrpStackLocation(Irp);
+ USBSTOR_IssueBulkOrInterruptRequest(Context->FDODeviceExtension,
+ Irp,
+ PipeHandle,
+ TransferFlags,
+ Request->DataTransferLength,
+ TransferBuffer,
+ Mdl,
+ USBSTOR_DataCompletionRoutine,
+ Context);
- // initialize stack location
- IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
- IoStack->Parameters.DeviceIoControl.IoControlCode =
IOCTL_INTERNAL_USB_SUBMIT_URB;
- IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
- IoStack->Parameters.DeviceIoControl.InputBufferLength =
Context->Urb.UrbHeader.Length;
- Irp->IoStatus.Status = STATUS_SUCCESS;
-
- IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
+ return STATUS_MORE_PROCESSING_REQUIRED;
+ResetRecovery:
+ Context->ErrorIndex = 2;
+ Status = USBSTOR_QueueWorkItem(Context, NULL);
+ ASSERT(Status == STATUS_MORE_PROCESSING_REQUIRED);
return STATUS_MORE_PROCESSING_REQUIRED;
}
@@ -463,132 +476,67 @@ DumpCBW(
Block[10] & 0xFF, Block[11] & 0xFF, Block[12] & 0xFF, Block[13] &
0xFF, Block[14] & 0xFF, Block[15] & 0xFF, Block[16] & 0xFF, Block[17] &
0xFF, Block[18] & 0xFF, Block[19] & 0xFF,
Block[20] & 0xFF, Block[21] & 0xFF, Block[22] & 0xFF, Block[23] &
0xFF, Block[24] & 0xFF, Block[25] & 0xFF, Block[26] & 0xFF, Block[27] &
0xFF, Block[28] & 0xFF, Block[29] & 0xFF,
Block[30] & 0xFF);
-
-}
-
-NTSTATUS
-USBSTOR_SendCBW(
- PIRP_CONTEXT Context,
- PIRP Irp)
-{
- PIO_STACK_LOCATION IoStack;
-
- IoStack = IoGetNextIrpStackLocation(Irp);
-
- // initialize stack location
- IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
- IoStack->Parameters.DeviceIoControl.IoControlCode =
IOCTL_INTERNAL_USB_SUBMIT_URB;
- IoStack->Parameters.Others.Argument1 = (PVOID)&Context->Urb;
- IoStack->Parameters.DeviceIoControl.InputBufferLength =
Context->Urb.UrbHeader.Length;
- Irp->IoStatus.Status = STATUS_SUCCESS;
-
- IoSetCompletionRoutine(Irp, USBSTOR_CBWCompletionRoutine, Context, TRUE, TRUE,
TRUE);
-
- return IoCallDriver(Context->FDODeviceExtension->LowerDeviceObject, Irp);
}
+static
NTSTATUS
-USBSTOR_SendRequest(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP OriginalRequest,
- IN UCHAR CommandLength,
- IN PUCHAR Command,
- IN ULONG TransferDataLength,
- IN PUCHAR TransferData,
- IN ULONG RetryCount)
+USBSTOR_SendCBWRequest(
+ IN PFDO_DEVICE_EXTENSION FDODeviceExtension,
+ IN PIRP Irp,
+ IN PIRP_CONTEXT Context)
{
- PIRP_CONTEXT Context;
PPDO_DEVICE_EXTENSION PDODeviceExtension;
- PFDO_DEVICE_EXTENSION FDODeviceExtension;
- PUCHAR MdlVirtualAddress;
+ PIO_STACK_LOCATION IoStack;
+ PSCSI_REQUEST_BLOCK Request;
- Context = USBSTOR_AllocateIrpContext();
if (!Context)
{
- return STATUS_INSUFFICIENT_RESOURCES;
+ Context = USBSTOR_AllocateIrpContext();
+ if (!Context)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
}
+ else
+ {
+ RtlZeroMemory(Context->cbw, sizeof(CBW));
+ RtlZeroMemory(&Context->Urb, sizeof(URB));
+ }
- PDODeviceExtension = (PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
- FDODeviceExtension =
(PFDO_DEVICE_EXTENSION)PDODeviceExtension->LowerDeviceObject->DeviceExtension;
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+ PDODeviceExtension = IoStack->DeviceObject->DeviceExtension;
+ Request = IoStack->Parameters.Scsi.Srb;
- USBSTOR_BuildCBW(PtrToUlong(Context->cbw),
- TransferDataLength,
- PDODeviceExtension->LUN,
- CommandLength,
- Command,
- Context->cbw);
+ Context->cbw->Signature = CBW_SIGNATURE;
+ Context->cbw->Tag = PtrToUlong(Context->cbw);
+ Context->cbw->DataTransferLength = Request->DataTransferLength;
+ Context->cbw->Flags = ((UCHAR)Request->SrbFlags &
SRB_FLAGS_UNSPECIFIED_DIRECTION) << 1;
+ Context->cbw->LUN = PDODeviceExtension->LUN;
+ Context->cbw->CommandBlockLength = Request->CdbLength;
+
+ RtlCopyMemory(Context->cbw->CommandBlock, Request->Cdb,
Request->CdbLength);
DPRINT("CBW %p\n", Context->cbw);
DumpCBW((PUCHAR)Context->cbw);
- // now initialize the urb
- UsbBuildInterruptOrBulkTransferRequest(&Context->Urb,
- sizeof(struct
_URB_BULK_OR_INTERRUPT_TRANSFER),
-
FDODeviceExtension->InterfaceInformation->Pipes[FDODeviceExtension->BulkOutPipeIndex].PipeHandle,
- Context->cbw,
- NULL,
- sizeof(CBW),
- USBD_TRANSFER_DIRECTION_OUT,
- NULL);
-
// initialize rest of context
- Context->Irp = OriginalRequest;
- Context->TransferData = TransferData;
- Context->TransferDataLength = TransferDataLength;
+ Context->Irp = Irp;
+ Context->TransferData = Request->DataBuffer;
+ Context->TransferDataLength = Request->DataTransferLength;
Context->FDODeviceExtension = FDODeviceExtension;
Context->PDODeviceExtension = PDODeviceExtension;
- Context->RetryCount = RetryCount;
-
- // is there transfer data
- if (Context->TransferDataLength)
- {
- // check if the original request already does have an mdl associated
- if ((OriginalRequest->MdlAddress != NULL) &&
- (Context->TransferData == NULL || Command[0] == SCSIOP_READ || Command[0]
== SCSIOP_WRITE))
- {
- // Sanity check that the Mdl does describe the TransferData for read/write
- if (CommandLength == UFI_READ_WRITE_CMD_LEN)
- {
- MdlVirtualAddress =
MmGetMdlVirtualAddress(OriginalRequest->MdlAddress);
-
- // is there an offset
- if (MdlVirtualAddress != Context->TransferData)
- {
- // lets build an mdl
- Context->TransferBufferMDL =
IoAllocateMdl(Context->TransferData, MmGetMdlByteCount(OriginalRequest->MdlAddress),
FALSE, FALSE, NULL);
- if (!Context->TransferBufferMDL)
- {
- FreeItem(Context->cbw);
- FreeItem(Context);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- IoBuildPartialMdl(OriginalRequest->MdlAddress,
Context->TransferBufferMDL, Context->TransferData, Context->TransferDataLength);
- }
- }
-
- if (!Context->TransferBufferMDL)
- {
- // I/O paging request
- Context->TransferBufferMDL = OriginalRequest->MdlAddress;
- }
- }
- else
- {
- // allocate mdl for buffer, buffer must be allocated from NonPagedPool
- Context->TransferBufferMDL = IoAllocateMdl(Context->TransferData,
Context->TransferDataLength, FALSE, FALSE, NULL);
- if (!Context->TransferBufferMDL)
- {
- FreeItem(Context->cbw);
- FreeItem(Context);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- MmBuildMdlForNonPagedPool(Context->TransferBufferMDL);
- }
- }
-
- return USBSTOR_SendCBW(Context, OriginalRequest);
+ Context->RetryCount = 0;
+
+ return USBSTOR_IssueBulkOrInterruptRequest(
+ FDODeviceExtension,
+ Irp,
+
FDODeviceExtension->InterfaceInformation->Pipes[FDODeviceExtension->BulkOutPipeIndex].PipeHandle,
+ USBD_TRANSFER_DIRECTION_OUT,
+ sizeof(CBW),
+ Context->cbw,
+ NULL,
+ USBSTOR_CBWCompletionRoutine,
+ Context);
}
NTSTATUS
@@ -614,7 +562,7 @@ USBSTOR_HandleExecuteSCSI(
// check that we're sending to the right LUN
ASSERT(pCDB->CDB10.LogicalUnitNumber == (PDODeviceExtension->LUN &
MAX_LUN));
- Status = USBSTOR_SendRequest(DeviceObject, Irp, Request->CdbLength, (PUCHAR)pCDB,
Request->DataTransferLength, Request->DataBuffer, RetryCount);
+ Status =
USBSTOR_SendCBWRequest(PDODeviceExtension->LowerDeviceObject->DeviceExtension, Irp,
NULL);
return Status;
}
diff --git a/drivers/usb/usbstor/usbstor.h b/drivers/usb/usbstor/usbstor.h
index 6d23a567853..fc3870ed298 100644
--- a/drivers/usb/usbstor/usbstor.h
+++ b/drivers/usb/usbstor/usbstor.h
@@ -413,19 +413,7 @@ USBSTOR_HandleExecuteSCSI(
IN ULONG RetryCount);
NTSTATUS
-NTAPI
-USBSTOR_CSWCompletionRoutine(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp,
- PVOID Ctx);
-
-NTSTATUS
-USBSTOR_SendCBW(
- PIRP_CONTEXT Context,
- PIRP Irp);
-
-VOID
-USBSTOR_SendCSW(
+USBSTOR_SendCSWRequest(
PIRP_CONTEXT Context,
PIRP Irp);
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Victor Perevertkin