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StorPortReleaseMSISpinLock function (storport.h)

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The StorPortReleaseMSISpinLock routine releases a previously acquired message signaled interrupt (MSI) spin lock for the specified message.

Syntax

ULONG StorPortReleaseMSISpinLock(
  [in] PVOID HwDeviceExtension,
       ULONG MessageId,
  [in] ULONG OldIrql
);

Parameters

[in] HwDeviceExtension

A pointer to the hardware device extension for the host bus adapter (HBA).

MessageId

The identifier of the message.

[in] OldIrql

The IRQL that the StorPortAcquireMSISpinLock routine returned when the miniport driver acquired the spin lock.

Return value

StorPortReleaseMSISpinLock returns one of the following status codes:

Return code Description
STOR_STATUS_NOT_IMPLEMENTED This function is not implemented on the active operating system.
STOR_STATUS_SUCCESS Indicates that the spin lock was released successfully.
STOR_STATUS_INVALID_PARAMETER HwDeviceExtension was NULL.

Remarks

Miniport drivers are not required to acquire MSI spin locks for messages unless the InterruptSynchronizePerMessage member of the PORT_CONFIGURATION_INFORMATION structure indicates a synchronization mode of InterruptSynchronizationMode.

Requirements

Requirement Value
Minimum supported client This routine is available starting with Windows Vista.
Target Platform Universal
Header storport.h (include Storport.h)
IRQL Any level

See also

StorPortAcquireMSISpinLock