107 lines
2 KiB
C
107 lines
2 KiB
C
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#ifndef _MP_DEVF_H_
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#define _MP_DEVF_H_
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#include <initguid.h>
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#define MULTIPATH_CONTROL ((ULONG) 'mp')
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//
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// IOCTLS that the MultiPath driver sends.
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//
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//
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// IOCTLS that the Device Filter sends.
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//
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#define IOCTL_MPDEV_QUERY_PDO CTL_CODE (MULTIPATH_CONTROL, 0x12, METHOD_BUFFERED, FILE_ANY_ACCESS)
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#define IOCTL_MPDEV_REGISTER CTL_CODE (MULTIPATH_CONTROL, 0x13, METHOD_BUFFERED, FILE_ANY_ACCESS)
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//
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// QueryPDO input structure.
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//
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typedef struct _MPIO_PDO_QUERY {
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PDEVICE_OBJECT DeviceObject;
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} MPIO_PDO_QUERY, *PMPIO_PDO_QUERY;
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//
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// PDO Registration function that the device filter
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// will call to set-up side-band comms.
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//
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typedef
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NTSTATUS
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(*PDEV_POWER_NOTIFICATION) (
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IN PDEVICE_OBJECT MPDiskObject,
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IN PDEVICE_OBJECT FilterObject,
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IN PIRP Irp
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);
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typedef
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NTSTATUS
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(*PDEV_PNP_NOTIFICATION) (
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IN PDEVICE_OBJECT MPDiskObject,
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IN PDEVICE_OBJECT FilterObject,
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IN PIRP Irp
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);
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typedef struct _MPIO_PDO_INFO {
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//
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// MP Disk PDO.
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//
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PDEVICE_OBJECT PdoObject;
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//
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// Routine for Power Irp handling.
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//
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PDEV_POWER_NOTIFICATION DevicePowerNotify;
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//
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// Routine for PnP Irp handling.
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//
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PDEV_PNP_NOTIFICATION DevicePnPNotify;
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} MPIO_PDO_INFO, *PMPIO_PDO_INFO;
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typedef
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NTSTATUS
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(*PDEV_PDO_REGISTRATION)(
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IN PDEVICE_OBJECT MPDiskObject,
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IN PDEVICE_OBJECT FilterObject,
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IN PDEVICE_OBJECT LowerDevice,
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IN OUT PMPIO_PDO_INFO PdoInformation
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);
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//
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// Output structure for the DEV_REGISTRATION IOCTL.
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//
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typedef struct _MPIO_REG_INFO {
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//
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// The filter's D.O.
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//
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PDEVICE_OBJECT FilterObject;
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//
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// The target PDO aka Scsiport's PDO.
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//
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PDEVICE_OBJECT LowerDevice;
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//
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// The PDO that corresponds to the real device
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// that the dev. filter is layer over. (ie. the MPDisk)
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//
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PDEVICE_OBJECT MPDiskObject;
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//
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// A routine to call to register with
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// the MPIO PDO.
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//
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PDEV_PDO_REGISTRATION DevicePdoRegister;
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} MPIO_REG_INFO, *PMPIO_REG_INFO;
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#endif // _MP_DEV_H_
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