// storport.h

typedef struct _MESSAGE_INTERRUPT_INFORMATION {
  ULONG                 MessageId;
  ULONG                 MessageData;
  STOR_PHYSICAL_ADDRESS MessageAddress;
  ULONG                 InterruptVector;
  ULONG                 InterruptLevel;
  KINTERRUPT_MODE       InterruptMode;
} MESSAGE_INTERRUPT_INFORMATION, *PMESSAGE_INTERRUPT_INFORMATION;
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Windows Driver Kit DDI reference (ns-storport-_message_interrupt_information)

_MESSAGE_INTERRUPT_INFORMATION structure

Description

The MESSAGE_INTERRUPT_INFORMATION structure describes a message signaled interrupt (MSI).

Members

`MessageId`

An identifier identifies the MSI interrupt. A miniport driver can pass this value to StorPortAcquireMSISpinLock in the MessageId parameter to obtain a spin lock for synchronization purposes.

`MessageData`

The data associated with the message.

`MessageAddress`

The physical address associated with the message.

`InterruptVector`

The interrupt vector associated with the message.

`InterruptLevel`

The interrupt level associated with the message.

`InterruptMode`

A value of type KINTERRUPT_MODE that specifies the interrupt mode associated with the message.

Remarks

Miniport drivers retrieve the MSI information in a MESSAGE_INTERRUPT_INFORMATION structure by calling the StorPortGetMSIInfo routine.

MESSAGE_INTERRUPT_INFORMATION - NtDoc