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update file header
update function header according to <Protocol/DriverBinding.h> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6947 6f19259b-4bc3-4df7-8a09-765794883524
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@ -1,7 +1,7 @@
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/** @file
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The entry point of IScsi driver
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The entry point of IScsi driver.
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Copyright (c) 2004 - 2008, Intel Corporation
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Copyright (c) 2004 - 2008, Intel Corporation.<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@ -10,13 +10,6 @@ http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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IScsiDriver.c
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Abstract:
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The entry point of IScsi driver
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**/
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#include "IScsiImpl.h"
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@ -32,28 +25,37 @@ EFI_DRIVER_BINDING_PROTOCOL gIScsiDriverBinding = {
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EFI_GUID mIScsiPrivateGuid = ISCSI_PRIVATE_GUID;
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/**
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Test to see if IScsi driver supports the given controller.
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Tests to see if this driver supports a given controller. If a child device is provided,
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it further tests to see if this driver supports creating a handle for the specified child device.
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@param This[in] Protocol instance pointer.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to test. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path.
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This parameter is ignored by device drivers, and is optional for bus drivers.
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@param ControllerHandle[in] Handle of controller to test.
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@param RemainingDevicePath[in] Optional parameter use to pick a specific child device to start.
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@retval EFI_SUCCES This driver supports the controller.
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@retval EFI_ALREADY_STARTED This driver is already running on this device.
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@retval EFI_UNSUPPORTED This driver doesn't support the controller.
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@retval EFI_SUCCESS The device specified by ControllerHandle and
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RemainingDevicePath is supported by the driver specified by This.
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@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by the driver
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specified by This.
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@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by a different
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driver or an application that requires exclusive acces.
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Currently not implemented.
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@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
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RemainingDevicePath is not supported by the driver specified by This.
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**/
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EFI_STATUS
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EFIAPI
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IScsiDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL * This,
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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@ -100,25 +102,36 @@ IScsiDriverBindingSupported (
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}
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/**
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Start to manage the controller.
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Start this driver on ControllerHandle. The Start() function is designed to be
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invoked from the EFI boot service ConnectController(). As a result, much of
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the error checking on the parameters to Start() has been moved into this
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common boot service. It is legal to call Start() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE.
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2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
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EFI_DEVICE_PATH_PROTOCOL.
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3. Prior to calling Start(), the Supported() function for the driver specified by This must
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have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
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@param This[in] Protocol instance pointer.
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@param ControllerHandle[in] Handle of the controller.
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@param RemainingDevicePath[in] Optional parameter use to pick a specific child device to start.
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@retval EFI_SUCCES This driver supports this device.
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@retval EFI_ALREADY_STARTED This driver is already running on this device.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to start. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path.
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This parameter is ignored by device drivers, and is optional for bus drivers.
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@retval EFI_SUCCESS The device was started.
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@retval EFI_DEVICE_ERROR The device could not be started due to a device error.
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Currently not implemented.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others The driver failded to start the device.
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**/
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EFI_STATUS
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EFIAPI
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IScsiDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL * This,
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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@ -205,18 +218,30 @@ ON_ERROR:
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}
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/**
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Release the control of this controller and remove the IScsi functions.
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Stop this driver on ControllerHandle.
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@param This[in] Protocol instance pointer.
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Release the control of this controller and remove the IScsi functions. The Stop()
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function is designed to be invoked from the EFI boot service DisconnectController().
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As a result, much of the error checking on the parameters to Stop() has been moved
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into this common boot service. It is legal to call Stop() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
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same driver's Start() function.
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2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
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EFI_HANDLE. In addition, all of these handles must have been created in this driver's
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Start() function, and the Start() function must have called OpenProtocol() on
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ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
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@param ControllerHandle[in] Handle of controller to stop.
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@param NumberOfChildren[in] Not used.
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@param ChildHandleBuffer[in] Not used.
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@retval EFI_SUCCES This driver supports this device.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle A handle to the device being stopped. The handle must
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support a bus specific I/O protocol for the driver
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to use to stop the device.
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@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.Not used.
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@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
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if NumberOfChildren is 0.Not used.
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@retval EFI_SUCCESS The device was stopped.
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@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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}
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/**
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Unload the iSCSI driver.
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Unloads an image(the iSCSI driver).
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@param ImageHandle[in] The handle of the driver image.
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@retval EFI_SUCCESS The driver is unloaded.
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@retval EFI_DEVICE_ERROR Some unexpected error happened.
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@param[in] ImageHandle Handle that identifies the image to be unloaded.
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@retval EFI_SUCCESS The image has been unloaded.
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@retval Others Some unexpected errors happened.
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**/
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EFI_STATUS
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EFIAPI
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}
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/**
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Initialize the global variables publish the driver binding protocol.
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This is the declaration of an EFI image entry point. This entry point is
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the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
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both device drivers and bus drivers. It initialize the global variables and
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publish the driver binding protocol.
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@param ImageHandle[in] The handle of the driver image.
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@param SystemTable[in] The EFI system table.
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@retval EFI_SUCCESS The protocols are installed.
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@retval EFI_DEVICE_ERROR Some unexpected error happened.
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@param[in] ImageHandle The firmware allocated handle for the UEFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The operation completed successfully.
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@retval EFI_ACCESS_DENIED EFI_ISCSI_INITIATOR_NAME_PROTOCOL was installed unexpectedly.
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@retval Others Some unexpected error happened.
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**/
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EFI_STATUS
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EFIAPI
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