Revision: 15092
http://sourceforge.net/p/edk2/code/15092
Author: sfu5
Date: 2014-01-10 08:24:29 +0000 (Fri, 10 Jan 2014)
Log Message:
-----------
Fix bug in unload function: Check if component name protocol exist, only
uninstall it when it really exists.
Signed-off-by: Fu Siyuan <[email protected]>
Reviewed-by: Tian, Feng <[email protected]>
Reviewed-by: Jin, Eric <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDriver.c
trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
trunk/edk2/NetworkPkg/IScsiDxe/IScsiDriver.c
trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.c
trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.h
Modified: trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDriver.c
===================================================================
--- trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDriver.c
2014-01-10 07:29:32 UTC (rev 15091)
+++ trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDriver.c
2014-01-10 08:24:29 UTC (rev 15092)
@@ -1,7 +1,7 @@
/** @file
The entry point of IScsi driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -439,10 +439,12 @@
IN EFI_HANDLE ImageHandle
)
{
- EFI_STATUS Status;
- UINTN DeviceHandleCount;
- EFI_HANDLE *DeviceHandleBuffer;
- UINTN Index;
+ EFI_STATUS Status;
+ UINTN DeviceHandleCount;
+ EFI_HANDLE *DeviceHandleBuffer;
+ UINTN Index;
+ EFI_COMPONENT_NAME_PROTOCOL *ComponentName;
+ EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;
//
// Try to disonnect the driver from the devices it's controlling.
@@ -454,40 +456,89 @@
&DeviceHandleCount,
&DeviceHandleBuffer
);
- if (!EFI_ERROR (Status)) {
- for (Index = 0; Index < DeviceHandleCount; Index++) {
- Status = gBS->DisconnectController (
- DeviceHandleBuffer[Index],
- ImageHandle,
- NULL
- );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ for (Index = 0; Index < DeviceHandleCount; Index++) {
+ Status = IScsiTestManagedDevice (
+ DeviceHandleBuffer[Index],
+ gIScsiDriverBinding.DriverBindingHandle,
+ &gEfiTcp4ProtocolGuid
+ );
+ if (EFI_ERROR (Status)) {
+ continue;
}
+ Status = gBS->DisconnectController (
+ DeviceHandleBuffer[Index],
+ gIScsiDriverBinding.DriverBindingHandle,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
- if (DeviceHandleBuffer != NULL) {
- FreePool (DeviceHandleBuffer);
- }
- }
//
// Unload the iSCSI configuration form.
//
- IScsiConfigFormUnload (gIScsiDriverBinding.DriverBindingHandle);
+ Status = IScsiConfigFormUnload (gIScsiDriverBinding.DriverBindingHandle);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
//
- // Uninstall the protocols installed by iSCSI driver.
+ // Uninstall the ComponentName and ComponentName2 protocol from iSCSI4
driver binding handle
+ // if it has been installed.
//
+ Status = gBS->HandleProtocol (
+ gIScsiDriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ (VOID **) &ComponentName
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiDriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ ComponentName,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ Status = gBS->HandleProtocol (
+ gIScsiDriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ (VOID **) &ComponentName2
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiDriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ ComponentName2,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
Status = gBS->UninstallMultipleProtocolInterfaces (
ImageHandle,
&gEfiDriverBindingProtocolGuid,
&gIScsiDriverBinding,
- &gEfiComponentName2ProtocolGuid,
- &gIScsiComponentName2,
- &gEfiComponentNameProtocolGuid,
- &gIScsiComponentName,
&gEfiIScsiInitiatorNameProtocolGuid,
&gIScsiInitiatorName,
NULL
);
+ON_EXIT:
+ if (DeviceHandleBuffer != NULL) {
+ FreePool (DeviceHandleBuffer);
+ }
+
return Status;
}
Modified: trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
===================================================================
--- trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
2014-01-10 07:29:32 UTC (rev 15091)
+++ trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
2014-01-10 08:24:29 UTC (rev 15092)
@@ -1,7 +1,7 @@
/** @file
Miscellaneous routines for iSCSI driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -852,3 +852,70 @@
IScsiSessionAbort (&Private->Session);
}
+
+/**
+ Tests whether a controller handle is being managed by IScsi driver.
+
+ This function tests whether the driver specified by DriverBindingHandle is
+ currently managing the controller specified by ControllerHandle. This test
+ is performed by evaluating if the the protocol specified by ProtocolGuid is
+ present on ControllerHandle and is was opened by DriverBindingHandle and Nic
+ Device handle with an attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
+ If ProtocolGuid is NULL, then ASSERT().
+
+ @param ControllerHandle A handle for a controller to test.
+ @param DriverBindingHandle Specifies the driver binding handle for the
+ driver.
+ @param ProtocolGuid Specifies the protocol that the driver specified
+ by DriverBindingHandle opens in its Start()
+ function.
+
+ @retval EFI_SUCCESS ControllerHandle is managed by the driver
+ specified by DriverBindingHandle.
+ @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
+ specified by DriverBindingHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+IScsiTestManagedDevice (
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE DriverBindingHandle,
+ IN EFI_GUID *ProtocolGuid
+ )
+{
+ EFI_STATUS Status;
+ VOID *ManagedInterface;
+ EFI_HANDLE NicControllerHandle;
+
+ ASSERT (ProtocolGuid != NULL);
+
+ NicControllerHandle = NetLibGetNicHandle (ControllerHandle, ProtocolGuid);
+ if (NicControllerHandle == NULL) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ &ManagedInterface,
+ DriverBindingHandle,
+ NicControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ DriverBindingHandle,
+ NicControllerHandle
+ );
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Status != EFI_ALREADY_STARTED) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
Modified: trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
===================================================================
--- trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
2014-01-10 07:29:32 UTC (rev 15091)
+++ trunk/edk2/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
2014-01-10 08:24:29 UTC (rev 15092)
@@ -1,7 +1,7 @@
/** @file
Miscellaneous definitions for iSCSI driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -275,6 +275,35 @@
IN VOID *Context
);
+/**
+ Tests whether a controller handle is being managed by IScsi driver.
+ This function tests whether the driver specified by DriverBindingHandle is
+ currently managing the controller specified by ControllerHandle. This test
+ is performed by evaluating if the the protocol specified by ProtocolGuid is
+ present on ControllerHandle and is was opened by DriverBindingHandle and Nic
+ Device handle with an attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
+ If ProtocolGuid is NULL, then ASSERT().
+ @param ControllerHandle A handle for a controller to test.
+ @param DriverBindingHandle Specifies the driver binding handle for the
+ driver.
+ @param ProtocolGuid Specifies the protocol that the driver specified
+ by DriverBindingHandle opens in its Start()
+ function.
+
+ @retval EFI_SUCCESS ControllerHandle is managed by the driver
+ specified by DriverBindingHandle.
+ @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
+ specified by DriverBindingHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+IScsiTestManagedDevice (
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE DriverBindingHandle,
+ IN EFI_GUID *ProtocolGuid
+ );
+
#endif
Modified: trunk/edk2/NetworkPkg/IScsiDxe/IScsiDriver.c
===================================================================
--- trunk/edk2/NetworkPkg/IScsiDxe/IScsiDriver.c 2014-01-10 07:29:32 UTC
(rev 15091)
+++ trunk/edk2/NetworkPkg/IScsiDxe/IScsiDriver.c 2014-01-10 08:24:29 UTC
(rev 15092)
@@ -1,7 +1,7 @@
/** @file
The entry point of IScsi driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -1245,10 +1245,12 @@
IN EFI_HANDLE ImageHandle
)
{
- EFI_STATUS Status;
- UINTN DeviceHandleCount;
- EFI_HANDLE *DeviceHandleBuffer;
- UINTN Index;
+ EFI_STATUS Status;
+ UINTN DeviceHandleCount;
+ EFI_HANDLE *DeviceHandleBuffer;
+ UINTN Index;
+ EFI_COMPONENT_NAME_PROTOCOL *ComponentName;
+ EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;
//
// Try to disonnect the driver from the devices it's controlling.
@@ -1264,64 +1266,184 @@
return Status;
}
+ //
+ // Disconnect the iSCSI4 driver from the controlled device.
+ //
for (Index = 0; Index < DeviceHandleCount; Index++) {
- gBS->DisconnectController (
- DeviceHandleBuffer[Index],
+ Status = IScsiTestManagedDevice (
+ DeviceHandleBuffer[Index],
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiTcp4ProtocolGuid)
+ ;
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ Status = gBS->DisconnectController (
+ DeviceHandleBuffer[Index],
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ //
+ // Disconnect the iSCSI6 driver from the controlled device.
+ //
+ for (Index = 0; Index < DeviceHandleCount; Index++) {
+ Status = IScsiTestManagedDevice (
+ DeviceHandleBuffer[Index],
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiTcp6ProtocolGuid
+ );
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ Status = gBS->DisconnectController (
+ DeviceHandleBuffer[Index],
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ //
+ // Unload the iSCSI configuration form.
+ //
+ Status = IScsiConfigFormUnload (gIScsiIp4DriverBinding.DriverBindingHandle);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ //
+ // Uninstall the protocols installed by iSCSI driver.
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ ImageHandle,
+ &gEfiAuthenticationInfoProtocolGuid,
+ &gIScsiAuthenticationInfo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ if (gIScsiControllerNameTable!= NULL) {
+ Status = FreeUnicodeStringTable (gIScsiControllerNameTable);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ gIScsiControllerNameTable = NULL;
+ }
+
+ //
+ // Uninstall the ComponentName and ComponentName2 protocol from iSCSI4
driver binding handle
+ // if it has been installed.
+ //
+ Status = gBS->HandleProtocol (
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ (VOID **) &ComponentName
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ ComponentName,
NULL
);
- gBS->DisconnectController (
- DeviceHandleBuffer[Index],
- gIScsiIp6DriverBinding.DriverBindingHandle,
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ Status = gBS->HandleProtocol (
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ (VOID **) &ComponentName2
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ ComponentName2,
NULL
);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
}
//
- // Unload the iSCSI configuration form.
+ // Uninstall the ComponentName and ComponentName2 protocol from iSCSI6
driver binding handle
+ // if it has been installed.
//
- IScsiConfigFormUnload (gIScsiIp4DriverBinding.DriverBindingHandle);
+ Status = gBS->HandleProtocol (
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ (VOID **) &ComponentName
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiComponentNameProtocolGuid,
+ ComponentName,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ Status = gBS->HandleProtocol (
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ (VOID **) &ComponentName2
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiComponentName2ProtocolGuid,
+ ComponentName2,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
//
- // Uninstall the protocols installed by iSCSI driver.
+ // Uninstall the IScsiInitiatorNameProtocol and all the driver binding
protocols.
//
- gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiAuthenticationInfoProtocolGuid,
- &gIScsiAuthenticationInfo,
- NULL
- );
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiIp4DriverBinding.DriverBindingHandle,
+ &gEfiDriverBindingProtocolGuid,
+ &gIScsiIp4DriverBinding,
+ &gEfiIScsiInitiatorNameProtocolGuid,
+ &gIScsiInitiatorName,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
- if (gIScsiControllerNameTable!= NULL) {
- FreeUnicodeStringTable (gIScsiControllerNameTable);
- gIScsiControllerNameTable = NULL;
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ gIScsiIp6DriverBinding.DriverBindingHandle,
+ &gEfiDriverBindingProtocolGuid,
+ &gIScsiIp6DriverBinding,
+ NULL
+ );
+
+ON_EXIT:
+
+ if (DeviceHandleBuffer != NULL) {
+ FreePool (DeviceHandleBuffer);
}
- gBS->UninstallMultipleProtocolInterfaces (
- gIScsiIp4DriverBinding.DriverBindingHandle,
- &gEfiDriverBindingProtocolGuid,
- &gIScsiIp4DriverBinding,
- &gEfiComponentName2ProtocolGuid,
- &gIScsiComponentName2,
- &gEfiComponentNameProtocolGuid,
- &gIScsiComponentName,
- &gEfiIScsiInitiatorNameProtocolGuid,
- &gIScsiInitiatorName,
- NULL
- );
-
- gBS->UninstallMultipleProtocolInterfaces (
- gIScsiIp6DriverBinding.DriverBindingHandle,
- &gEfiDriverBindingProtocolGuid,
- &gIScsiIp6DriverBinding,
- &gEfiComponentName2ProtocolGuid,
- &gIScsiComponentName2,
- &gEfiComponentNameProtocolGuid,
- &gIScsiComponentName,
- NULL
- );
-
- return EFI_SUCCESS;
+ return Status;
}
/**
Modified: trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.c
===================================================================
--- trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.c 2014-01-10 07:29:32 UTC (rev
15091)
+++ trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.c 2014-01-10 08:24:29 UTC (rev
15092)
@@ -1,7 +1,7 @@
/** @file
Miscellaneous routines for iSCSI driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -1436,3 +1436,70 @@
IScsiSessionAbort (Private->Session);
}
}
+
+/**
+ Tests whether a controller handle is being managed by IScsi driver.
+
+ This function tests whether the driver specified by DriverBindingHandle is
+ currently managing the controller specified by ControllerHandle. This test
+ is performed by evaluating if the the protocol specified by ProtocolGuid is
+ present on ControllerHandle and is was opened by DriverBindingHandle and Nic
+ Device handle with an attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
+ If ProtocolGuid is NULL, then ASSERT().
+
+ @param ControllerHandle A handle for a controller to test.
+ @param DriverBindingHandle Specifies the driver binding handle for the
+ driver.
+ @param ProtocolGuid Specifies the protocol that the driver specified
+ by DriverBindingHandle opens in its Start()
+ function.
+
+ @retval EFI_SUCCESS ControllerHandle is managed by the driver
+ specified by DriverBindingHandle.
+ @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
+ specified by DriverBindingHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+IScsiTestManagedDevice (
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE DriverBindingHandle,
+ IN EFI_GUID *ProtocolGuid
+ )
+{
+ EFI_STATUS Status;
+ VOID *ManagedInterface;
+ EFI_HANDLE NicControllerHandle;
+
+ ASSERT (ProtocolGuid != NULL);
+
+ NicControllerHandle = NetLibGetNicHandle (ControllerHandle, ProtocolGuid);
+ if (NicControllerHandle == NULL) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ &ManagedInterface,
+ DriverBindingHandle,
+ NicControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ DriverBindingHandle,
+ NicControllerHandle
+ );
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Status != EFI_ALREADY_STARTED) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
Modified: trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.h
===================================================================
--- trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.h 2014-01-10 07:29:32 UTC (rev
15091)
+++ trunk/edk2/NetworkPkg/IScsiDxe/IScsiMisc.h 2014-01-10 08:24:29 UTC (rev
15092)
@@ -1,7 +1,7 @@
/** @file
Miscellaneous definitions for iSCSI driver.
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -357,4 +357,34 @@
IN VOID *Context
);
+/**
+ Tests whether a controller handle is being managed by IScsi driver.
+
+ This function tests whether the driver specified by DriverBindingHandle is
+ currently managing the controller specified by ControllerHandle. This test
+ is performed by evaluating if the the protocol specified by ProtocolGuid is
+ present on ControllerHandle and is was opened by DriverBindingHandle and Nic
+ Device handle with an attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
+ If ProtocolGuid is NULL, then ASSERT().
+
+ @param ControllerHandle A handle for a controller to test.
+ @param DriverBindingHandle Specifies the driver binding handle for the
+ driver.
+ @param ProtocolGuid Specifies the protocol that the driver specified
+ by DriverBindingHandle opens in its Start()
+ function.
+
+ @retval EFI_SUCCESS ControllerHandle is managed by the driver
+ specified by DriverBindingHandle.
+ @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
+ specified by DriverBindingHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+IScsiTestManagedDevice (
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE DriverBindingHandle,
+ IN EFI_GUID *ProtocolGuid
+ );
#endif
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