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sys: initial fast I/O support

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This commit is contained in:
Bill Zissimopoulos
2015-11-16 16:37:27 -08:00
parent 99c2a6a5e5
commit 1b18452663
6 changed files with 80 additions and 4 deletions
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32
src/sys/driver.c
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@ -64,6 +64,38 @@ DriverEntry(
DriverObject->MajorFunction[IRP_MJ_SET_QUOTA] = 0;
DriverObject->MajorFunction[IRP_MJ_PNP] = 0;
/* setup fast I/O */
static FAST_IO_DISPATCH FspFastIoDispatch = { 0 };
FspFastIoDispatch.SizeOfFastIoDispatch = sizeof FspFastIoDispatch;
FspFastIoDispatch.FastIoCheckIfPossible = FspFastIoCheckIfPossible;
FspFastIoDispatch.FastIoRead = FsRtlCopyRead;
FspFastIoDispatch.FastIoWrite = FsRtlCopyWrite;
FspFastIoDispatch.FastIoQueryBasicInfo = 0;
FspFastIoDispatch.FastIoQueryStandardInfo = 0;
FspFastIoDispatch.FastIoLock = 0;
FspFastIoDispatch.FastIoUnlockSingle = 0;
FspFastIoDispatch.FastIoUnlockAll = 0;
FspFastIoDispatch.FastIoUnlockAllByKey = 0;
FspFastIoDispatch.FastIoDeviceControl = 0;
FspFastIoDispatch.AcquireFileForNtCreateSection = 0;
FspFastIoDispatch.ReleaseFileForNtCreateSection = 0;
FspFastIoDispatch.FastIoDetachDevice = 0;
FspFastIoDispatch.FastIoQueryNetworkOpenInfo = 0;
FspFastIoDispatch.AcquireForModWrite = 0;
FspFastIoDispatch.MdlRead = FsRtlMdlReadDev;
FspFastIoDispatch.MdlReadComplete = FsRtlMdlReadCompleteDev;
FspFastIoDispatch.PrepareMdlWrite = FsRtlPrepareMdlWriteDev;
FspFastIoDispatch.MdlWriteComplete = FsRtlMdlWriteCompleteDev;
FspFastIoDispatch.FastIoReadCompressed = 0;
FspFastIoDispatch.FastIoWriteCompressed = 0;
FspFastIoDispatch.MdlReadCompleteCompressed = 0;
FspFastIoDispatch.MdlWriteCompleteCompressed = 0;
FspFastIoDispatch.FastIoQueryOpen = 0;
FspFastIoDispatch.ReleaseForModWrite = 0;
FspFastIoDispatch.AcquireForCcFlush = 0;
FspFastIoDispatch.ReleaseForCcFlush = 0;
DriverObject->FastIoDispatch = &FspFastIoDispatch;
return STATUS_SUCCESS;
}