StorPortReleaseMSISpinLock - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// storport.h
ULONG StorPortReleaseMSISpinLock(
[in] PVOID HwDeviceExtension,
ULONG MessageId,
[in] ULONG OldIrql
);
View the official Windows Driver Kit DDI referenceNo description available.
The StorPortReleaseMSISpinLock routine releases a previously acquired message signaled interrupt (MSI) spin lock for the specified message.
HwDeviceExtension [in]A pointer to the hardware device extension for the host bus adapter (HBA).
MessageIdThe identifier of the message.
OldIrql [in]The IRQL that the StorPortAcquireMSISpinLock routine returned when the miniport driver acquired the spin lock.
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. |
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.