f256ab43ea
Cc: Jiaxin Wu <jiaxin.wu@intel.com> Cc: Siyuan Fu <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
1846 lines
65 KiB
C
1846 lines
65 KiB
C
/** @file
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The entry point of IScsi driver.
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Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
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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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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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**/
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#include "IScsiImpl.h"
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EFI_DRIVER_BINDING_PROTOCOL gIScsiIp4DriverBinding = {
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IScsiIp4DriverBindingSupported,
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IScsiIp4DriverBindingStart,
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IScsiIp4DriverBindingStop,
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0xa,
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NULL,
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NULL
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};
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EFI_DRIVER_BINDING_PROTOCOL gIScsiIp6DriverBinding = {
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IScsiIp6DriverBindingSupported,
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IScsiIp6DriverBindingStart,
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IScsiIp6DriverBindingStop,
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0xa,
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NULL,
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NULL
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};
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EFI_GUID gIScsiV4PrivateGuid = ISCSI_V4_PRIVATE_GUID;
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EFI_GUID gIScsiV6PrivateGuid = ISCSI_V6_PRIVATE_GUID;
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ISCSI_PRIVATE_DATA *mPrivate = NULL;
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/**
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Tests to see if this driver supports the RemainingDevicePath.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For bus drivers, if this parameter is not NULL, then
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the bus driver must determine if the bus controller specified
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by ControllerHandle and the child controller specified
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by RemainingDevicePath are both supported by this
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bus driver.
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@retval EFI_SUCCESS The RemainingDevicePath is supported or NULL.
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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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IScsiIsDevicePathSupported (
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_DEVICE_PATH_PROTOCOL *CurrentDevicePath;
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CurrentDevicePath = RemainingDevicePath;
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if (CurrentDevicePath != NULL) {
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while (!IsDevicePathEnd (CurrentDevicePath)) {
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if ((CurrentDevicePath->Type == MESSAGING_DEVICE_PATH) && (CurrentDevicePath->SubType == MSG_ISCSI_DP)) {
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return EFI_SUCCESS;
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}
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CurrentDevicePath = NextDevicePathNode (CurrentDevicePath);
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}
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return EFI_UNSUPPORTED;
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}
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return EFI_SUCCESS;
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}
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/**
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Check whether an iSCSI HBA adapter already installs an AIP instance with
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network boot policy matching the value specified in PcdIScsiAIPNetworkBootPolicy.
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If yes, return EFI_SUCCESS.
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@retval EFI_SUCCESS Found an AIP with matching network boot policy.
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@retval EFI_NOT_FOUND AIP is unavailable or the network boot policy
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not matched.
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**/
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EFI_STATUS
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IScsiCheckAip (
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)
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{
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UINTN AipHandleCount;
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EFI_HANDLE *AipHandleBuffer;
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UINTN AipIndex;
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EFI_ADAPTER_INFORMATION_PROTOCOL *Aip;
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EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru;
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EFI_GUID *InfoTypesBuffer;
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UINTN InfoTypeBufferCount;
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UINTN TypeIndex;
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VOID *InfoBlock;
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UINTN InfoBlockSize;
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BOOLEAN Supported;
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EFI_ADAPTER_INFO_NETWORK_BOOT *NetworkBoot;
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EFI_STATUS Status;
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UINT8 NetworkBootPolicy;
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//
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// Check any AIP instances exist in system.
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//
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AipHandleCount = 0;
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AipHandleBuffer = NULL;
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Status = gBS->LocateHandleBuffer (
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ByProtocol,
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&gEfiAdapterInformationProtocolGuid,
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NULL,
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&AipHandleCount,
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&AipHandleBuffer
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);
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if (EFI_ERROR (Status) || AipHandleCount == 0) {
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return EFI_NOT_FOUND;
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}
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ASSERT (AipHandleBuffer != NULL);
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InfoBlock = NULL;
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for (AipIndex = 0; AipIndex < AipHandleCount; AipIndex++) {
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Status = gBS->HandleProtocol (
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AipHandleBuffer[AipIndex],
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&gEfiAdapterInformationProtocolGuid,
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(VOID *) &Aip
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);
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ASSERT_EFI_ERROR (Status);
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ASSERT (Aip != NULL);
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Status = gBS->HandleProtocol (
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AipHandleBuffer[AipIndex],
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&gEfiExtScsiPassThruProtocolGuid,
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(VOID *) &ExtScsiPassThru
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);
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if (EFI_ERROR (Status) || ExtScsiPassThru == NULL) {
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continue;
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}
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InfoTypesBuffer = NULL;
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InfoTypeBufferCount = 0;
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Status = Aip->GetSupportedTypes (Aip, &InfoTypesBuffer, &InfoTypeBufferCount);
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if (EFI_ERROR (Status) || InfoTypesBuffer == NULL) {
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continue;
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}
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//
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// Check whether the AIP instance has Network boot information block.
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//
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Supported = FALSE;
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for (TypeIndex = 0; TypeIndex < InfoTypeBufferCount; TypeIndex++) {
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if (CompareGuid (&InfoTypesBuffer[TypeIndex], &gEfiAdapterInfoNetworkBootGuid)) {
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Supported = TRUE;
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break;
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}
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}
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FreePool (InfoTypesBuffer);
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if (!Supported) {
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continue;
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}
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//
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// We now have network boot information block.
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//
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InfoBlock = NULL;
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InfoBlockSize = 0;
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Status = Aip->GetInformation (Aip, &gEfiAdapterInfoNetworkBootGuid, &InfoBlock, &InfoBlockSize);
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if (EFI_ERROR (Status) || InfoBlock == NULL) {
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continue;
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}
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//
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// Check whether the network boot policy matches.
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//
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NetworkBoot = (EFI_ADAPTER_INFO_NETWORK_BOOT *) InfoBlock;
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NetworkBootPolicy = PcdGet8 (PcdIScsiAIPNetworkBootPolicy);
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if (NetworkBootPolicy == STOP_UEFI_ISCSI_IF_HBA_INSTALL_AIP) {
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Status = EFI_SUCCESS;
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goto Exit;
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}
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if (((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_SUPPORT_IP4) != 0 &&
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!NetworkBoot->iScsiIpv4BootCapablity) ||
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((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_SUPPORT_IP6) != 0 &&
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!NetworkBoot->iScsiIpv6BootCapablity) ||
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((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_SUPPORT_OFFLOAD) != 0 &&
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!NetworkBoot->OffloadCapability) ||
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((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_SUPPORT_MPIO) != 0 &&
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!NetworkBoot->iScsiMpioCapability) ||
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((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_CONFIGURED_IP4) != 0 &&
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!NetworkBoot->iScsiIpv4Boot) ||
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((NetworkBootPolicy & STOP_UEFI_ISCSI_IF_AIP_CONFIGURED_IP6) != 0 &&
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!NetworkBoot->iScsiIpv6Boot)) {
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FreePool (InfoBlock);
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continue;
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}
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Status = EFI_SUCCESS;
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goto Exit;
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}
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Status = EFI_NOT_FOUND;
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Exit:
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if (InfoBlock != NULL) {
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FreePool (InfoBlock);
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}
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if (AipHandleBuffer != NULL) {
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FreePool (AipHandleBuffer);
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}
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return Status;
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}
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/**
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Tests to see if this driver supports a given controller. This is the worker function for
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IScsiIp4(6)DriverBindingSupported.
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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. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For bus drivers, if this parameter is not NULL, then
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the bus driver must determine if the bus controller specified
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by ControllerHandle and the child controller specified
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by RemainingDevicePath are both supported by this
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bus driver.
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@param[in] IpVersion IP_VERSION_4 or IP_VERSION_6.
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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_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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IScsiSupported (
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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 UINT8 IpVersion
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)
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{
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EFI_STATUS Status;
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EFI_GUID *IScsiServiceBindingGuid;
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EFI_GUID *TcpServiceBindingGuid;
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EFI_GUID *DhcpServiceBindingGuid;
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if (IpVersion == IP_VERSION_4) {
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IScsiServiceBindingGuid = &gIScsiV4PrivateGuid;
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TcpServiceBindingGuid = &gEfiTcp4ServiceBindingProtocolGuid;
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DhcpServiceBindingGuid = &gEfiDhcp4ServiceBindingProtocolGuid;
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} else {
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IScsiServiceBindingGuid = &gIScsiV6PrivateGuid;
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TcpServiceBindingGuid = &gEfiTcp6ServiceBindingProtocolGuid;
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DhcpServiceBindingGuid = &gEfiDhcp6ServiceBindingProtocolGuid;
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}
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Status = gBS->OpenProtocol (
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ControllerHandle,
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IScsiServiceBindingGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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Status = gBS->OpenProtocol (
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ControllerHandle,
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TcpServiceBindingGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return EFI_UNSUPPORTED;
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}
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Status = IScsiIsDevicePathSupported (RemainingDevicePath);
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if (EFI_ERROR (Status)) {
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return EFI_UNSUPPORTED;
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}
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if (IScsiDhcpIsConfigured (ControllerHandle, IpVersion)) {
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Status = gBS->OpenProtocol (
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ControllerHandle,
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DhcpServiceBindingGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return EFI_UNSUPPORTED;
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}
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}
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return EFI_SUCCESS;
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}
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/**
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Start to manage the controller. This is the worker function for
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IScsiIp4(6)DriverBindingStart.
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@param[in] Image Handle of the image.
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@param[in] ControllerHandle Handle of the controller.
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@param[in] IpVersion IP_VERSION_4 or IP_VERSION_6.
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@retval EFI_SUCCES This driver was started.
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@retval EFI_ALREADY_STARTED This driver is already running on this device.
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@retval EFI_INVALID_PARAMETER Any input parameter is invalid.
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@retval EFI_NOT_FOUND There is no sufficient information to establish
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the iScsi session.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
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@retval EFI_DEVICE_ERROR Failed to get TCP connection device path.
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@retval EFI_ACCESS_DENIED The protocol could not be removed from the Handle
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because its interfaces are being used.
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**/
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EFI_STATUS
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IScsiStart (
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IN EFI_HANDLE Image,
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IN EFI_HANDLE ControllerHandle,
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IN UINT8 IpVersion
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)
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{
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EFI_STATUS Status;
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ISCSI_DRIVER_DATA *Private;
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LIST_ENTRY *Entry;
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LIST_ENTRY *NextEntry;
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ISCSI_ATTEMPT_CONFIG_NVDATA *AttemptConfigData;
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ISCSI_SESSION *Session;
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UINT8 Index;
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EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExistIScsiExtScsiPassThru;
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ISCSI_DRIVER_DATA *ExistPrivate;
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UINT8 *AttemptConfigOrder;
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UINTN AttemptConfigOrderSize;
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UINT8 BootSelected;
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EFI_HANDLE *HandleBuffer;
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UINTN NumberOfHandles;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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EFI_GUID *IScsiPrivateGuid;
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EFI_GUID *TcpServiceBindingGuid;
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CHAR16 MacString[ISCSI_MAX_MAC_STRING_LEN];
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BOOLEAN NeedUpdate;
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VOID *Interface;
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EFI_GUID *ProtocolGuid;
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UINT8 NetworkBootPolicy;
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ISCSI_SESSION_CONFIG_NVDATA *NvData;
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//
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// Test to see if iSCSI driver supports the given controller.
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//
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if (IpVersion == IP_VERSION_4) {
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IScsiPrivateGuid = &gIScsiV4PrivateGuid;
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TcpServiceBindingGuid = &gEfiTcp4ServiceBindingProtocolGuid;
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ProtocolGuid = &gEfiTcp4ProtocolGuid;
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} else if (IpVersion == IP_VERSION_6) {
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IScsiPrivateGuid = &gIScsiV6PrivateGuid;
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TcpServiceBindingGuid = &gEfiTcp6ServiceBindingProtocolGuid;
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ProtocolGuid = &gEfiTcp6ProtocolGuid;
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} else {
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return EFI_INVALID_PARAMETER;
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}
|
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Status = gBS->OpenProtocol (
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ControllerHandle,
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IScsiPrivateGuid,
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NULL,
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Image,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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Status = gBS->OpenProtocol (
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ControllerHandle,
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TcpServiceBindingGuid,
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NULL,
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Image,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
|
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if (EFI_ERROR (Status)) {
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return EFI_UNSUPPORTED;
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}
|
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|
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NetworkBootPolicy = PcdGet8 (PcdIScsiAIPNetworkBootPolicy);
|
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if (NetworkBootPolicy != ALWAYS_USE_UEFI_ISCSI_AND_IGNORE_AIP) {
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//
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// Check existing iSCSI AIP.
|
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//
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Status = IScsiCheckAip ();
|
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if (!EFI_ERROR (Status)) {
|
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//
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// Find iSCSI AIP with specified network boot policy. return EFI_ABORTED.
|
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//
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return EFI_ABORTED;
|
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}
|
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}
|
|
|
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//
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// Record the incoming NIC info.
|
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//
|
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Status = IScsiAddNic (ControllerHandle);
|
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if (EFI_ERROR (Status)) {
|
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return Status;
|
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}
|
|
|
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//
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// Create the instance private data.
|
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//
|
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Private = IScsiCreateDriverData (Image, ControllerHandle);
|
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if (Private == NULL) {
|
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return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// Create a underlayer child instance, but not need to configure it. Just open ChildHandle
|
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// via BY_DRIVER. That is, establishing the relationship between ControllerHandle and ChildHandle.
|
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// Therefore, when DisconnectController(), especially VLAN virtual controller handle,
|
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// IScsiDriverBindingStop() will be called.
|
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//
|
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Status = NetLibCreateServiceChild (
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ControllerHandle,
|
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Image,
|
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TcpServiceBindingGuid,
|
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&Private->ChildHandle
|
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);
|
|
|
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if (EFI_ERROR (Status)) {
|
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goto ON_ERROR;
|
|
}
|
|
|
|
Status = gBS->OpenProtocol (
|
|
Private->ChildHandle, /// Default Tcp child
|
|
ProtocolGuid,
|
|
&Interface,
|
|
Image,
|
|
ControllerHandle,
|
|
EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// Always install private protocol no matter what happens later. We need to
|
|
// keep the relationship between ControllerHandle and ChildHandle.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&ControllerHandle,
|
|
IScsiPrivateGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&Private->IScsiIdentifier
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
if (IpVersion == IP_VERSION_4) {
|
|
mPrivate->Ipv6Flag = FALSE;
|
|
} else {
|
|
mPrivate->Ipv6Flag = TRUE;
|
|
}
|
|
|
|
//
|
|
// Get the current iSCSI configuration data.
|
|
//
|
|
Status = IScsiGetConfigData (Private);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// If there is already a successul attempt, check whether this attempt is the
|
|
// first "enabled for MPIO" attempt. If not, still try the first attempt.
|
|
// In single path mode, try all attempts.
|
|
//
|
|
ExistPrivate = NULL;
|
|
Status = EFI_NOT_FOUND;
|
|
|
|
if (mPrivate->OneSessionEstablished && mPrivate->EnableMpio) {
|
|
AttemptConfigData = NULL;
|
|
NET_LIST_FOR_EACH (Entry, &mPrivate->AttemptConfigs) {
|
|
AttemptConfigData = NET_LIST_USER_STRUCT (Entry, ISCSI_ATTEMPT_CONFIG_NVDATA, Link);
|
|
if (AttemptConfigData->SessionConfigData.Enabled == ISCSI_ENABLED_FOR_MPIO) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (AttemptConfigData == NULL) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
if (AttemptConfigData->AttemptConfigIndex == mPrivate->BootSelectedIndex) {
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
//
|
|
// Uninstall the original ExtScsiPassThru first.
|
|
//
|
|
|
|
//
|
|
// Locate all ExtScsiPassThru protocol instances.
|
|
//
|
|
Status = gBS->LocateHandleBuffer (
|
|
ByProtocol,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
NULL,
|
|
&NumberOfHandles,
|
|
&HandleBuffer
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// Find ExtScsiPassThru protocol instance produced by this driver.
|
|
//
|
|
ExistIScsiExtScsiPassThru = NULL;
|
|
for (Index = 0; Index < NumberOfHandles && ExistIScsiExtScsiPassThru == NULL; Index++) {
|
|
Status = gBS->HandleProtocol (
|
|
HandleBuffer[Index],
|
|
&gEfiDevicePathProtocolGuid,
|
|
(VOID **) &DevicePath
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
continue;
|
|
}
|
|
|
|
while (!IsDevicePathEnd (DevicePath)) {
|
|
if ((DevicePath->Type == MESSAGING_DEVICE_PATH) && (DevicePath->SubType == MSG_MAC_ADDR_DP)) {
|
|
//
|
|
// Get the ExtScsiPassThru protocol instance.
|
|
//
|
|
Status = gBS->HandleProtocol (
|
|
HandleBuffer[Index],
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
(VOID **) &ExistIScsiExtScsiPassThru
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
break;
|
|
}
|
|
|
|
DevicePath = NextDevicePathNode (DevicePath);
|
|
}
|
|
}
|
|
|
|
FreePool (HandleBuffer);
|
|
|
|
if (ExistIScsiExtScsiPassThru == NULL) {
|
|
Status = EFI_NOT_FOUND;
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
ExistPrivate = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (ExistIScsiExtScsiPassThru);
|
|
|
|
Status = gBS->UninstallProtocolInterface (
|
|
ExistPrivate->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
&ExistPrivate->IScsiExtScsiPassThru
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Install the Ext SCSI PASS THRU protocol.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&Private->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&Private->IScsiExtScsiPassThru
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
BootSelected = 0;
|
|
|
|
NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &mPrivate->AttemptConfigs) {
|
|
AttemptConfigData = NET_LIST_USER_STRUCT (Entry, ISCSI_ATTEMPT_CONFIG_NVDATA, Link);
|
|
//
|
|
// Don't process the attempt that does not associate with the current NIC or
|
|
// this attempt is disabled or established.
|
|
//
|
|
if (AttemptConfigData->NicIndex != mPrivate->CurrentNic ||
|
|
AttemptConfigData->SessionConfigData.Enabled == ISCSI_DISABLED ||
|
|
AttemptConfigData->ValidPath) {
|
|
continue;
|
|
}
|
|
|
|
//
|
|
// In multipath mode, don't process attempts configured for single path.
|
|
// In default single path mode, don't process attempts configured for multipath.
|
|
//
|
|
if ((mPrivate->EnableMpio &&
|
|
AttemptConfigData->SessionConfigData.Enabled != ISCSI_ENABLED_FOR_MPIO) ||
|
|
(!mPrivate->EnableMpio &&
|
|
AttemptConfigData->SessionConfigData.Enabled != ISCSI_ENABLED)) {
|
|
continue;
|
|
}
|
|
|
|
//
|
|
// Don't process the attempt that fails to get the init/target information from DHCP.
|
|
//
|
|
if (AttemptConfigData->SessionConfigData.InitiatorInfoFromDhcp &&
|
|
!AttemptConfigData->DhcpSuccess) {
|
|
if (!mPrivate->EnableMpio && mPrivate->ValidSinglePathCount > 0) {
|
|
mPrivate->ValidSinglePathCount--;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
//
|
|
// Don't process the autoconfigure path if it is already established.
|
|
//
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_AUTOCONFIG &&
|
|
AttemptConfigData->AutoConfigureSuccess) {
|
|
continue;
|
|
}
|
|
|
|
//
|
|
// Don't process the attempt if its IP mode is not in the current IP version.
|
|
//
|
|
if (!mPrivate->Ipv6Flag) {
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_IP6) {
|
|
continue;
|
|
}
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_AUTOCONFIG &&
|
|
AttemptConfigData->AutoConfigureMode == IP_MODE_AUTOCONFIG_IP6) {
|
|
continue;
|
|
}
|
|
} else {
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_IP4) {
|
|
continue;
|
|
}
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_AUTOCONFIG &&
|
|
AttemptConfigData->AutoConfigureMode == IP_MODE_AUTOCONFIG_IP4) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Fill in the Session and init it.
|
|
//
|
|
Session = (ISCSI_SESSION *) AllocateZeroPool (sizeof (ISCSI_SESSION));
|
|
if (Session == NULL) {
|
|
Status = EFI_OUT_OF_RESOURCES;
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
Session->Private = Private;
|
|
Session->ConfigData = AttemptConfigData;
|
|
Session->AuthType = AttemptConfigData->AuthenticationType;
|
|
|
|
AsciiStrToUnicodeStrS (AttemptConfigData->MacString, MacString, ARRAY_SIZE (MacString));
|
|
UnicodeSPrint (
|
|
mPrivate->PortString,
|
|
(UINTN) ISCSI_NAME_IFR_MAX_SIZE,
|
|
L"%s%d",
|
|
MacString,
|
|
(UINTN) AttemptConfigData->AttemptConfigIndex
|
|
);
|
|
|
|
if (Session->AuthType == ISCSI_AUTH_TYPE_CHAP) {
|
|
Session->AuthData.CHAP.AuthConfig = &AttemptConfigData->AuthConfigData.CHAP;
|
|
}
|
|
|
|
IScsiSessionInit (Session, FALSE);
|
|
|
|
//
|
|
// Try to login and create an iSCSI session according to the configuration.
|
|
//
|
|
Status = IScsiSessionLogin (Session);
|
|
if (Status == EFI_MEDIA_CHANGED) {
|
|
//
|
|
// The specified target is not available, and the redirection information is
|
|
// received. Login the session again with the updated target address.
|
|
//
|
|
Status = IScsiSessionLogin (Session);
|
|
} else if (Status == EFI_NOT_READY) {
|
|
Status = IScsiSessionReLogin (Session);
|
|
}
|
|
|
|
//
|
|
// Restore the origial user setting which specifies the proxy/virtual iSCSI target to NV region.
|
|
//
|
|
NvData = &AttemptConfigData->SessionConfigData;
|
|
if (NvData->RedirectFlag) {
|
|
NvData->TargetPort = NvData->OriginalTargetPort;
|
|
CopyMem (&NvData->TargetIp, &NvData->OriginalTargetIp, sizeof (EFI_IP_ADDRESS));
|
|
NvData->RedirectFlag = FALSE;
|
|
|
|
gRT->SetVariable (
|
|
mPrivate->PortString,
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
ISCSI_CONFIG_VAR_ATTR,
|
|
sizeof (ISCSI_ATTEMPT_CONFIG_NVDATA),
|
|
AttemptConfigData
|
|
);
|
|
}
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
//
|
|
// In Single path mode, only the successful attempt will be recorded in iBFT;
|
|
// in multi-path mode, all the attempt entries in MPIO will be recorded in iBFT.
|
|
//
|
|
if (!mPrivate->EnableMpio && mPrivate->ValidSinglePathCount > 0) {
|
|
mPrivate->ValidSinglePathCount--;
|
|
}
|
|
|
|
FreePool (Session);
|
|
|
|
} else {
|
|
AttemptConfigData->ValidPath = TRUE;
|
|
|
|
//
|
|
// Do not record the attempt in iBFT if it login with KRB5.
|
|
// TODO: record KRB5 attempt information in the iSCSI device path.
|
|
//
|
|
if (Session->AuthType == ISCSI_AUTH_TYPE_KRB) {
|
|
if (!mPrivate->EnableMpio && mPrivate->ValidSinglePathCount > 0) {
|
|
mPrivate->ValidSinglePathCount--;
|
|
}
|
|
|
|
AttemptConfigData->ValidiBFTPath = FALSE;
|
|
} else {
|
|
AttemptConfigData->ValidiBFTPath = TRUE;
|
|
}
|
|
|
|
//
|
|
// IScsi session success. Update the attempt state to NVR.
|
|
//
|
|
if (AttemptConfigData->SessionConfigData.IpMode == IP_MODE_AUTOCONFIG) {
|
|
AttemptConfigData->AutoConfigureSuccess = TRUE;
|
|
}
|
|
|
|
gRT->SetVariable (
|
|
mPrivate->PortString,
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
ISCSI_CONFIG_VAR_ATTR,
|
|
sizeof (ISCSI_ATTEMPT_CONFIG_NVDATA),
|
|
AttemptConfigData
|
|
);
|
|
|
|
//
|
|
// Select the first login session. Abort others.
|
|
//
|
|
if (Private->Session == NULL) {
|
|
Private->Session = Session;
|
|
BootSelected = AttemptConfigData->AttemptConfigIndex;
|
|
//
|
|
// Don't validate other attempt in multipath mode if one is success.
|
|
//
|
|
if (mPrivate->EnableMpio) {
|
|
break;
|
|
}
|
|
} else {
|
|
IScsiSessionAbort (Session);
|
|
FreePool (Session);
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// All attempts configured for this driver instance are not valid.
|
|
//
|
|
if (Private->Session == NULL) {
|
|
Status = gBS->UninstallProtocolInterface (
|
|
Private->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
&Private->IScsiExtScsiPassThru
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
Private->ExtScsiPassThruHandle = NULL;
|
|
|
|
//
|
|
// Reinstall the original ExtScsiPassThru back.
|
|
//
|
|
if (mPrivate->OneSessionEstablished && ExistPrivate != NULL) {
|
|
Status = gBS->InstallProtocolInterface (
|
|
&ExistPrivate->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&ExistPrivate->IScsiExtScsiPassThru
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
Status = EFI_NOT_FOUND;
|
|
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
NeedUpdate = TRUE;
|
|
//
|
|
// More than one attempt successes.
|
|
//
|
|
if (Private->Session != NULL && mPrivate->OneSessionEstablished) {
|
|
|
|
AttemptConfigOrder = IScsiGetVariableAndSize (
|
|
L"AttemptOrder",
|
|
&gIScsiConfigGuid,
|
|
&AttemptConfigOrderSize
|
|
);
|
|
if (AttemptConfigOrder == NULL) {
|
|
goto ON_ERROR;
|
|
}
|
|
for (Index = 0; Index < AttemptConfigOrderSize / sizeof (UINT8); Index++) {
|
|
if (AttemptConfigOrder[Index] == mPrivate->BootSelectedIndex ||
|
|
AttemptConfigOrder[Index] == BootSelected) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mPrivate->EnableMpio) {
|
|
//
|
|
// Use the attempt in earlier order. Abort the later one in MPIO.
|
|
//
|
|
if (AttemptConfigOrder[Index] == mPrivate->BootSelectedIndex) {
|
|
IScsiSessionAbort (Private->Session);
|
|
FreePool (Private->Session);
|
|
Private->Session = NULL;
|
|
gBS->UninstallProtocolInterface (
|
|
Private->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
&Private->IScsiExtScsiPassThru
|
|
);
|
|
Private->ExtScsiPassThruHandle = NULL;
|
|
|
|
//
|
|
// Reinstall the original ExtScsiPassThru back.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&ExistPrivate->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&ExistPrivate->IScsiExtScsiPassThru
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
goto ON_EXIT;
|
|
} else {
|
|
if (AttemptConfigOrder[Index] != BootSelected) {
|
|
goto ON_ERROR;
|
|
}
|
|
mPrivate->BootSelectedIndex = BootSelected;
|
|
//
|
|
// Clear the resource in ExistPrivate.
|
|
//
|
|
gBS->UninstallProtocolInterface (
|
|
ExistPrivate->Controller,
|
|
IScsiPrivateGuid,
|
|
&ExistPrivate->IScsiIdentifier
|
|
);
|
|
|
|
IScsiRemoveNic (ExistPrivate->Controller);
|
|
if (ExistPrivate->Session != NULL) {
|
|
IScsiSessionAbort (ExistPrivate->Session);
|
|
}
|
|
|
|
if (ExistPrivate->DevicePath != NULL) {
|
|
Status = gBS->UninstallProtocolInterface (
|
|
ExistPrivate->ExtScsiPassThruHandle,
|
|
&gEfiDevicePathProtocolGuid,
|
|
ExistPrivate->DevicePath
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
FreePool (ExistPrivate->DevicePath);
|
|
}
|
|
|
|
gBS->CloseEvent (ExistPrivate->ExitBootServiceEvent);
|
|
FreePool (ExistPrivate);
|
|
|
|
}
|
|
} else {
|
|
//
|
|
// Use the attempt in earlier order as boot selected in single path mode.
|
|
//
|
|
if (AttemptConfigOrder[Index] == mPrivate->BootSelectedIndex) {
|
|
NeedUpdate = FALSE;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (NeedUpdate) {
|
|
mPrivate->OneSessionEstablished = TRUE;
|
|
mPrivate->BootSelectedIndex = BootSelected;
|
|
}
|
|
|
|
//
|
|
// Duplicate the Session's tcp connection device path. The source port field
|
|
// will be set to zero as one iSCSI session is comprised of several iSCSI
|
|
// connections.
|
|
//
|
|
Private->DevicePath = IScsiGetTcpConnDevicePath (Private->Session);
|
|
if (Private->DevicePath == NULL) {
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto ON_ERROR;
|
|
}
|
|
//
|
|
// Install the updated device path onto the ExtScsiPassThruHandle.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&Private->ExtScsiPassThruHandle,
|
|
&gEfiDevicePathProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
Private->DevicePath
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// ISCSI children should share the default Tcp child, just open the default Tcp child via BY_CHILD_CONTROLLER.
|
|
//
|
|
Status = gBS->OpenProtocol (
|
|
Private->ChildHandle, /// Default Tcp child
|
|
ProtocolGuid,
|
|
&Interface,
|
|
Image,
|
|
Private->ExtScsiPassThruHandle,
|
|
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
Private->ExtScsiPassThruHandle,
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
&Private->IScsiExtScsiPassThru,
|
|
&gEfiDevicePathProtocolGuid,
|
|
Private->DevicePath,
|
|
NULL
|
|
);
|
|
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
ON_EXIT:
|
|
|
|
//
|
|
// Update/Publish the iSCSI Boot Firmware Table.
|
|
//
|
|
if (mPrivate->BootSelectedIndex != 0) {
|
|
IScsiPublishIbft ();
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
ON_ERROR:
|
|
|
|
if (Private->Session != NULL) {
|
|
IScsiSessionAbort (Private->Session);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Stops a device controller or a bus controller. This is the worker function for
|
|
IScsiIp4(6)DriverBindingStop.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle A handle to the device being stopped. The handle must
|
|
support a bus specific I/O protocol for the driver
|
|
to use to stop the device.
|
|
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
|
|
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
|
|
if NumberOfChildren is 0.
|
|
@param[in] IpVersion IP_VERSION_4 or IP_VERSION_6.
|
|
|
|
@retval EFI_SUCCESS The device was stopped.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
@retval EFI_INVALID_PARAMETER Child handle is NULL.
|
|
@retval EFI_ACCESS_DENIED The protocol could not be removed from the Handle
|
|
because its interfaces are being used.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiStop (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN UINTN NumberOfChildren,
|
|
IN EFI_HANDLE *ChildHandleBuffer OPTIONAL,
|
|
IN UINT8 IpVersion
|
|
)
|
|
{
|
|
EFI_HANDLE IScsiController;
|
|
EFI_STATUS Status;
|
|
ISCSI_PRIVATE_PROTOCOL *IScsiIdentifier;
|
|
ISCSI_DRIVER_DATA *Private;
|
|
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru;
|
|
ISCSI_CONNECTION *Conn;
|
|
EFI_GUID *ProtocolGuid;
|
|
EFI_GUID *TcpServiceBindingGuid;
|
|
EFI_GUID *TcpProtocolGuid;
|
|
|
|
|
|
if (NumberOfChildren != 0) {
|
|
//
|
|
// We should have only one child.
|
|
//
|
|
Status = gBS->OpenProtocol (
|
|
ChildHandleBuffer[0],
|
|
&gEfiExtScsiPassThruProtocolGuid,
|
|
(VOID **) &PassThru,
|
|
This->DriverBindingHandle,
|
|
ControllerHandle,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (PassThru);
|
|
Conn = NET_LIST_HEAD (&Private->Session->Conns, ISCSI_CONNECTION, Link);
|
|
|
|
//
|
|
// Previously the TCP protocol is opened BY_CHILD_CONTROLLER. Just close
|
|
// the protocol here, but do not uninstall the device path protocol and
|
|
// EXT SCSI PASS THRU protocol installed on ExtScsiPassThruHandle.
|
|
//
|
|
if (IpVersion == IP_VERSION_4) {
|
|
ProtocolGuid = &gEfiTcp4ProtocolGuid;
|
|
} else {
|
|
ProtocolGuid = &gEfiTcp6ProtocolGuid;
|
|
}
|
|
|
|
gBS->CloseProtocol (
|
|
Private->ChildHandle,
|
|
ProtocolGuid,
|
|
Private->Image,
|
|
Private->ExtScsiPassThruHandle
|
|
);
|
|
|
|
gBS->CloseProtocol (
|
|
Conn->TcpIo.Handle,
|
|
ProtocolGuid,
|
|
Private->Image,
|
|
Private->ExtScsiPassThruHandle
|
|
);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
//
|
|
// Get the handle of the controller we are controling.
|
|
//
|
|
if (IpVersion == IP_VERSION_4) {
|
|
ProtocolGuid = &gIScsiV4PrivateGuid;
|
|
TcpProtocolGuid = &gEfiTcp4ProtocolGuid;
|
|
TcpServiceBindingGuid = &gEfiTcp4ServiceBindingProtocolGuid;
|
|
} else {
|
|
ProtocolGuid = &gIScsiV6PrivateGuid;
|
|
TcpProtocolGuid = &gEfiTcp6ProtocolGuid;
|
|
TcpServiceBindingGuid = &gEfiTcp6ServiceBindingProtocolGuid;
|
|
}
|
|
IScsiController = NetLibGetNicHandle (ControllerHandle, TcpProtocolGuid);
|
|
if (IScsiController == NULL) {
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
Status = gBS->OpenProtocol (
|
|
IScsiController,
|
|
ProtocolGuid,
|
|
(VOID **) &IScsiIdentifier,
|
|
This->DriverBindingHandle,
|
|
ControllerHandle,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Private = ISCSI_DRIVER_DATA_FROM_IDENTIFIER (IScsiIdentifier);
|
|
ASSERT (Private != NULL);
|
|
|
|
if (Private->ChildHandle != NULL) {
|
|
Status = gBS->CloseProtocol (
|
|
Private->ChildHandle,
|
|
TcpProtocolGuid,
|
|
This->DriverBindingHandle,
|
|
IScsiController
|
|
);
|
|
|
|
ASSERT (!EFI_ERROR (Status));
|
|
|
|
Status = NetLibDestroyServiceChild (
|
|
IScsiController,
|
|
This->DriverBindingHandle,
|
|
TcpServiceBindingGuid,
|
|
Private->ChildHandle
|
|
);
|
|
|
|
ASSERT (!EFI_ERROR (Status));
|
|
}
|
|
|
|
gBS->UninstallProtocolInterface (
|
|
IScsiController,
|
|
ProtocolGuid,
|
|
&Private->IScsiIdentifier
|
|
);
|
|
|
|
//
|
|
// Remove this NIC.
|
|
//
|
|
IScsiRemoveNic (IScsiController);
|
|
|
|
//
|
|
// Update the iSCSI Boot Firware Table.
|
|
//
|
|
IScsiPublishIbft ();
|
|
|
|
if (Private->Session != NULL) {
|
|
IScsiSessionAbort (Private->Session);
|
|
}
|
|
|
|
Status = IScsiCleanDriverData (Private);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Tests to see if this driver supports a given controller. If a child device is provided,
|
|
it tests to see if this driver supports creating a handle for the specified child device.
|
|
|
|
This function checks to see if the driver specified by This supports the device specified by
|
|
ControllerHandle. Drivers typically use the device path attached to
|
|
ControllerHandle and/or the services from the bus I/O abstraction attached to
|
|
ControllerHandle to determine if the driver supports ControllerHandle. This function
|
|
may be called many times during platform initialization. In order to reduce boot times, the tests
|
|
performed by this function must be very small and take as little time as possible to execute. This
|
|
function must not change the state of any hardware devices, and this function must be aware that the
|
|
device specified by ControllerHandle may already be managed by the same driver or a
|
|
different driver. This function must match its calls to AllocatePages() with FreePages(),
|
|
AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
|
|
Since ControllerHandle may have been previously started by the same driver, if a protocol is
|
|
already in the opened state, then it must not be closed with CloseProtocol(). This is required
|
|
to guarantee the state of ControllerHandle is not modified by this function.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to test. This handle
|
|
must support a protocol interface that supplies
|
|
an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For bus drivers, if this parameter is not NULL, then
|
|
the bus driver must determine if the bus controller specified
|
|
by ControllerHandle and the child controller specified
|
|
by RemainingDevicePath are both supported by this
|
|
bus driver.
|
|
|
|
@retval EFI_SUCCESS The device specified by ControllerHandle and
|
|
RemainingDevicePath is supported by the driver specified by This.
|
|
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already managed by the driver
|
|
specified by This.
|
|
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already managed by a different
|
|
driver or an application that requires exclusive access.
|
|
Currently not implemented.
|
|
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is not supported by the driver specified by This.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp4DriverBindingSupported (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
|
|
)
|
|
{
|
|
return IScsiSupported (
|
|
This,
|
|
ControllerHandle,
|
|
RemainingDevicePath,
|
|
IP_VERSION_4
|
|
);
|
|
}
|
|
|
|
/**
|
|
Starts a device controller or a bus controller.
|
|
|
|
The Start() function is designed to be invoked from the EFI boot service ConnectController().
|
|
As a result, much of the error checking on the parameters to Start() has been moved into this
|
|
common boot service. It is legal to call Start() from other locations,
|
|
but the following calling restrictions must be followed or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE.
|
|
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
|
|
EFI_DEVICE_PATH_PROTOCOL.
|
|
3. Prior to calling Start(), the Supported() function for the driver specified by This must
|
|
have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to start. This handle
|
|
must support a protocol interface that supplies
|
|
an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For a bus driver, if this parameter is NULL, then handles
|
|
for all the children of Controller are created by this driver.
|
|
If this parameter is not NULL and the first Device Path Node is
|
|
not the End of Device Path Node, then only the handle for the
|
|
child device specified by the first Device Path Node of
|
|
RemainingDevicePath is created by this driver.
|
|
If the first Device Path Node of RemainingDevicePath is
|
|
the End of Device Path Node, no child handle is created by this
|
|
driver.
|
|
|
|
@retval EFI_SUCCESS The device was started.
|
|
@retval EFI_DEVICE_ERROR The device could not be started due to a device error. Currently not implemented.
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
|
@retval Others The driver failed to start the device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp4DriverBindingStart (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = IScsiStart (This->DriverBindingHandle, ControllerHandle, IP_VERSION_4);
|
|
if (Status == EFI_ALREADY_STARTED) {
|
|
Status = EFI_SUCCESS;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Stops a device controller or a bus controller.
|
|
|
|
The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
|
|
As a result, much of the error checking on the parameters to Stop() has been moved
|
|
into this common boot service. It is legal to call Stop() from other locations,
|
|
but the following calling restrictions must be followed or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
|
|
same driver's Start() function.
|
|
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
|
|
EFI_HANDLE. In addition, all of these handles must have been created in this driver's
|
|
Start() function, and the Start() function must have called OpenProtocol() on
|
|
ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle A handle to the device being stopped. The handle must
|
|
support a bus specific I/O protocol for the driver
|
|
to use to stop the device.
|
|
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
|
|
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
|
|
if NumberOfChildren is 0.
|
|
|
|
@retval EFI_SUCCESS The device was stopped.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp4DriverBindingStop (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN UINTN NumberOfChildren,
|
|
IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
|
|
)
|
|
{
|
|
return IScsiStop (
|
|
This,
|
|
ControllerHandle,
|
|
NumberOfChildren,
|
|
ChildHandleBuffer,
|
|
IP_VERSION_4
|
|
);
|
|
}
|
|
|
|
/**
|
|
Tests to see if this driver supports a given controller. If a child device is provided,
|
|
it tests to see if this driver supports creating a handle for the specified child device.
|
|
|
|
This function checks to see if the driver specified by This supports the device specified by
|
|
ControllerHandle. Drivers typically use the device path attached to
|
|
ControllerHandle and/or the services from the bus I/O abstraction attached to
|
|
ControllerHandle to determine if the driver supports ControllerHandle. This function
|
|
may be called many times during platform initialization. In order to reduce boot times, the tests
|
|
performed by this function must be very small and take as little time as possible to execute. This
|
|
function must not change the state of any hardware devices, and this function must be aware that the
|
|
device specified by ControllerHandle may already be managed by the same driver or a
|
|
different driver. This function must match its calls to AllocatePages() with FreePages(),
|
|
AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
|
|
Since ControllerHandle may have been previously started by the same driver, if a protocol is
|
|
already in the opened state, then it must not be closed with CloseProtocol(). This is required
|
|
to guarantee the state of ControllerHandle is not modified by this function.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to test. This handle
|
|
must support a protocol interface that supplies
|
|
an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For bus drivers, if this parameter is not NULL, then
|
|
the bus driver must determine if the bus controller specified
|
|
by ControllerHandle and the child controller specified
|
|
by RemainingDevicePath are both supported by this
|
|
bus driver.
|
|
|
|
@retval EFI_SUCCESS The device specified by ControllerHandle and
|
|
RemainingDevicePath is supported by the driver specified by This.
|
|
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already managed by the driver
|
|
specified by This.
|
|
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already managed by a different
|
|
driver or an application that requires exclusive access.
|
|
Currently not implemented.
|
|
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is not supported by the driver specified by This.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp6DriverBindingSupported (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
|
|
)
|
|
{
|
|
return IScsiSupported (
|
|
This,
|
|
ControllerHandle,
|
|
RemainingDevicePath,
|
|
IP_VERSION_6
|
|
);
|
|
}
|
|
|
|
/**
|
|
Starts a device controller or a bus controller.
|
|
|
|
The Start() function is designed to be invoked from the EFI boot service ConnectController().
|
|
As a result, much of the error checking on the parameters to Start() has been moved into this
|
|
common boot service. It is legal to call Start() from other locations,
|
|
but the following calling restrictions must be followed or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE.
|
|
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
|
|
EFI_DEVICE_PATH_PROTOCOL.
|
|
3. Prior to calling Start(), the Supported() function for the driver specified by This must
|
|
have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to start. This handle
|
|
must support a protocol interface that supplies
|
|
an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For a bus driver, if this parameter is NULL, then handles
|
|
for all the children of Controller are created by this driver.
|
|
If this parameter is not NULL and the first Device Path Node is
|
|
not the End of Device Path Node, then only the handle for the
|
|
child device specified by the first Device Path Node of
|
|
RemainingDevicePath is created by this driver.
|
|
If the first Device Path Node of RemainingDevicePath is
|
|
the End of Device Path Node, no child handle is created by this
|
|
driver.
|
|
|
|
@retval EFI_SUCCESS The device was started.
|
|
@retval EFI_DEVICE_ERROR The device could not be started due to a device error. Currently not implemented.
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
|
@retval Others The driver failed to start the device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp6DriverBindingStart (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = IScsiStart (This->DriverBindingHandle, ControllerHandle, IP_VERSION_6);
|
|
if (Status == EFI_ALREADY_STARTED) {
|
|
Status = EFI_SUCCESS;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Stops a device controller or a bus controller.
|
|
|
|
The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
|
|
As a result, much of the error checking on the parameters to Stop() has been moved
|
|
into this common boot service. It is legal to call Stop() from other locations,
|
|
but the following calling restrictions must be followed or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
|
|
same driver's Start() function.
|
|
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
|
|
EFI_HANDLE. In addition, all of these handles must have been created in this driver's
|
|
Start() function, and the Start() function must have called OpenProtocol() on
|
|
ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle A handle to the device being stopped. The handle must
|
|
support a bus specific I/O protocol for the driver
|
|
to use to stop the device.
|
|
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
|
|
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
|
|
if NumberOfChildren is 0.
|
|
|
|
@retval EFI_SUCCESS The device was stopped.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiIp6DriverBindingStop (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN UINTN NumberOfChildren,
|
|
IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
|
|
)
|
|
{
|
|
return IScsiStop (
|
|
This,
|
|
ControllerHandle,
|
|
NumberOfChildren,
|
|
ChildHandleBuffer,
|
|
IP_VERSION_6
|
|
);
|
|
}
|
|
|
|
/**
|
|
Unload the iSCSI driver.
|
|
|
|
@param[in] ImageHandle The handle of the driver image.
|
|
|
|
@retval EFI_SUCCESS The driver is unloaded.
|
|
@retval EFI_DEVICE_ERROR An unexpected error occurred.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiUnload (
|
|
IN EFI_HANDLE ImageHandle
|
|
)
|
|
{
|
|
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.
|
|
//
|
|
Status = gBS->LocateHandleBuffer (
|
|
AllHandles,
|
|
NULL,
|
|
NULL,
|
|
&DeviceHandleCount,
|
|
&DeviceHandleBuffer
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Disconnect the iSCSI4 driver from the controlled device.
|
|
//
|
|
for (Index = 0; Index < DeviceHandleCount; 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
|
|
);
|
|
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;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Uninstall the ComponentName and ComponentName2 protocol from iSCSI6 driver binding handle
|
|
// if it has been installed.
|
|
//
|
|
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 IScsiInitiatorNameProtocol and all the driver binding protocols.
|
|
//
|
|
Status = gBS->UninstallMultipleProtocolInterfaces (
|
|
gIScsiIp4DriverBinding.DriverBindingHandle,
|
|
&gEfiDriverBindingProtocolGuid,
|
|
&gIScsiIp4DriverBinding,
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
&gIScsiInitiatorName,
|
|
NULL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
Status = gBS->UninstallMultipleProtocolInterfaces (
|
|
gIScsiIp6DriverBinding.DriverBindingHandle,
|
|
&gEfiDriverBindingProtocolGuid,
|
|
&gIScsiIp6DriverBinding,
|
|
NULL
|
|
);
|
|
|
|
ON_EXIT:
|
|
|
|
if (DeviceHandleBuffer != NULL) {
|
|
FreePool (DeviceHandleBuffer);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
This is the declaration of an EFI image entry point. This entry point is
|
|
the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
|
|
both device drivers and bus drivers.
|
|
|
|
The entry point for iSCSI driver which initializes the global variables and
|
|
installs the driver binding, component name protocol, iSCSI initiator name
|
|
protocol and Authentication Info protocol on its image.
|
|
|
|
@param[in] ImageHandle The firmware allocated handle for the UEFI image.
|
|
@param[in] SystemTable A pointer to the EFI System Table.
|
|
|
|
@retval EFI_SUCCESS The operation completed successfully.
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiDriverEntryPoint (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_ISCSI_INITIATOR_NAME_PROTOCOL *IScsiInitiatorName;
|
|
EFI_AUTHENTICATION_INFO_PROTOCOL *AuthenticationInfo;
|
|
|
|
//
|
|
// There should be only one EFI_ISCSI_INITIATOR_NAME_PROTOCOL.
|
|
//
|
|
Status = gBS->LocateProtocol (
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
NULL,
|
|
(VOID **) &IScsiInitiatorName
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
return EFI_ACCESS_DENIED;
|
|
}
|
|
|
|
//
|
|
// Initialize the EFI Driver Library.
|
|
//
|
|
Status = EfiLibInstallDriverBindingComponentName2 (
|
|
ImageHandle,
|
|
SystemTable,
|
|
&gIScsiIp4DriverBinding,
|
|
ImageHandle,
|
|
&gIScsiComponentName,
|
|
&gIScsiComponentName2
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
Status = EfiLibInstallDriverBindingComponentName2 (
|
|
ImageHandle,
|
|
SystemTable,
|
|
&gIScsiIp6DriverBinding,
|
|
NULL,
|
|
&gIScsiComponentName,
|
|
&gIScsiComponentName2
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto Error1;
|
|
}
|
|
|
|
//
|
|
// Install the iSCSI Initiator Name Protocol.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&ImageHandle,
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&gIScsiInitiatorName
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto Error2;
|
|
}
|
|
|
|
//
|
|
// Create the private data structures.
|
|
//
|
|
mPrivate = AllocateZeroPool (sizeof (ISCSI_PRIVATE_DATA));
|
|
if (mPrivate == NULL) {
|
|
Status = EFI_OUT_OF_RESOURCES;
|
|
goto Error3;
|
|
}
|
|
|
|
InitializeListHead (&mPrivate->NicInfoList);
|
|
InitializeListHead (&mPrivate->AttemptConfigs);
|
|
|
|
//
|
|
// Initialize the configuration form of iSCSI.
|
|
//
|
|
Status = IScsiConfigFormInit (gIScsiIp4DriverBinding.DriverBindingHandle);
|
|
if (EFI_ERROR (Status)) {
|
|
goto Error4;
|
|
}
|
|
|
|
//
|
|
// There should be only one EFI_AUTHENTICATION_INFO_PROTOCOL. If already exists,
|
|
// do not produce the protocol instance.
|
|
//
|
|
Status = gBS->LocateProtocol (
|
|
&gEfiAuthenticationInfoProtocolGuid,
|
|
NULL,
|
|
(VOID **) &AuthenticationInfo
|
|
);
|
|
if (Status == EFI_NOT_FOUND) {
|
|
Status = gBS->InstallProtocolInterface (
|
|
&ImageHandle,
|
|
&gEfiAuthenticationInfoProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&gIScsiAuthenticationInfo
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto Error5;
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
Error5:
|
|
IScsiConfigFormUnload (gIScsiIp4DriverBinding.DriverBindingHandle);
|
|
|
|
Error4:
|
|
FreePool (mPrivate);
|
|
|
|
Error3:
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
ImageHandle,
|
|
&gEfiIScsiInitiatorNameProtocolGuid,
|
|
&gIScsiInitiatorName,
|
|
NULL
|
|
);
|
|
|
|
Error2:
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
gIScsiIp6DriverBinding.DriverBindingHandle,
|
|
&gEfiDriverBindingProtocolGuid,
|
|
&gIScsiIp6DriverBinding,
|
|
&gEfiComponentName2ProtocolGuid,
|
|
&gIScsiComponentName2,
|
|
&gEfiComponentNameProtocolGuid,
|
|
&gIScsiComponentName,
|
|
NULL
|
|
);
|
|
|
|
Error1:
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
ImageHandle,
|
|
&gEfiDriverBindingProtocolGuid,
|
|
&gIScsiIp4DriverBinding,
|
|
&gEfiComponentName2ProtocolGuid,
|
|
&gIScsiComponentName2,
|
|
&gEfiComponentNameProtocolGuid,
|
|
&gIScsiComponentName,
|
|
NULL
|
|
);
|
|
|
|
return Status;
|
|
}
|
|
|