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ScsiPortNotification (NotificationType = NextLuRequest) routine

The ScsiPortNotification routine informs the operating system-specific port driver of certain events, such as when a miniport driver completes a request or is ready to start another SRB, as well as when the HBA indicates certain SCSI error conditions that occurred during an operation.

Syntax


VOID ScsiPortNotification(
  _In_      SCSI_NOTIFICATION_TYPE NotificationType,
  _In_      PVOID HwDeviceExtension,
  _In_opt_   PathId,
  _In_opt_   TargetId,
  _In_opt_   Lun
);

Parameters

NotificationType [in]

Specifies the type of notification. A NotificationType of NextLuRequest indicates that the HBA is ready for another request for the specified logical unit. If this value is set, ScsiPortNotification requires three additional parameters: (1) the path ID, (2) the target ID, and (3) the logical unit number. This value should be used only if the HBA can queue multiple requests and support auto-request sense or tagged queuing..

HwDeviceExtension [in]

Pointer to the hardware device extension. This is a per-HBA storage area that the port driver allocates and initializes on behalf of the miniport driver. Miniport drivers usually store HBA-specific information in this extension, such as the state of the HBA and the HBA's mapped access ranges. This area is available to the miniport driver in the DeviceExtension->HwDeviceExtension member of the HBA's device object immediately after the miniport driver calls ScsiPortInitialize. The port driver frees this memory when it removes the device.

PathId [in, optional]

Indicates the SCSI port or bus for the request. This parameter is optional.

TargetId [in, optional]

Indicates the target controller or device on the bus. This parameter is optional.

Lun [in, optional]

Indicates the logical unit number of the device. This parameter is optional.

Return value

None

Remarks

For information about the effects of other notification types, see ScsiPortNotification.

Requirements

Header

Srb.h (include Miniport.h or Scsi.h)

See also

HwScsiTimer
HwScsiDisableInterruptsCallback
HwScsiEnableInterruptsCallback
ScsiPortCompleteRequest
IoWMIRegistrationControl

 

 

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