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Fix a bug about the iSCSI DHCP dependency issue.

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Create rules to determine whether iSCSI need DHCP protocol in current configuration by examining user’s configuration data in DriverBindingSupported().

Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com >
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14802 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Wu Jiaxin
2013-10-25 08:05:47 +00:00
committed by jiaxinwu
parent 9551b02721
commit 05a300115a
3 changed files with 126 additions and 15 deletions
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56
MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
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@@ -1,7 +1,7 @@
/** @file
Miscellaneous routines for iSCSI driver.
Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -616,6 +616,60 @@ IScsiCleanDriverData (
FreePool (Private);
}
/**
Check wheather the Controller is configured to use DHCP protocol.
@param[in] Controller The handle of the controller.
@retval TRUE The handle of the controller need the Dhcp protocol.
@retval FALSE The handle of the controller does not need the Dhcp protocol.
**/
BOOLEAN
IScsiDhcpIsConfigured (
IN EFI_HANDLE Controller
)
{
EFI_STATUS Status;
EFI_MAC_ADDRESS MacAddress;
UINTN HwAddressSize;
UINT16 VlanId;
CHAR16 MacString[70];
ISCSI_SESSION_CONFIG_NVDATA *ConfigDataTmp;
//
// Get the mac string, it's the name of various variable
//
Status = NetLibGetMacAddress (Controller, &MacAddress, &HwAddressSize);
if (EFI_ERROR (Status)) {
return FALSE;
}
VlanId = NetLibGetVlanId (Controller);
IScsiMacAddrToStr (&MacAddress, (UINT32) HwAddressSize, VlanId, MacString);
//
// Get the normal configuration.
//
Status = GetVariable2 (
MacString,
&gEfiIScsiInitiatorNameProtocolGuid,
(VOID**)&ConfigDataTmp,
NULL
);
if (EFI_ERROR (Status)) {
return FALSE;
}
if (ConfigDataTmp->Enabled && ConfigDataTmp->InitiatorInfoFromDhcp) {
FreePool (ConfigDataTmp);
return TRUE;
}
FreePool (ConfigDataTmp);
return FALSE;
}
/**
Get the various configuration data of this iSCSI instance.