61bb6eeb4d
Patch addresses Bugzilla #1974. During ExitBootServices stage, drivers should not call any functions known to use Memory Allocation Services. One of such functions (as per UEFI spec) is UNDI->Shutdown(). Since UNDI drivers during ExitBootServices phase are expected to put the adapter to such a state that it will not perform any DMA operations, there is no need to interface UNDI by SNP driver during that phase. Finally, since ExitBootServices event notification function in SNP only calls UNDI->Shutdown() and Stop() functions, there is no need to create this event at all. Adding PCD to control creation of event reacting to ExitBootServices() call so that systems with UNDIs relying on SNP to call their Shutdown() and Stop() can still work. Change-Id: Idd76f26d2e8ff7cf88b2d75e2d524c74211f2e89 Reviewed-by: Siyuan Fu <siyuan.fu@intel.com> Signed-off-by: Maciej Rabeda <maciej.rabeda@intel.com> Cc: Siyuan Fu <siyuan.fu@intel.com> Cc: Jiaxin Wu <jiaxin.wu@intel.com>
81 lines
2.1 KiB
INI
81 lines
2.1 KiB
INI
## @file
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# This module produces EFI SNP Protocol.
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#
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# This module produces Simple Network Protocol upon EFI Network Interface
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# Identifier Protocol, to provide a packet level interface to a network adapter.
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#
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# Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = SnpDxe
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MODULE_UNI_FILE = SnpDxe.uni
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FILE_GUID = A2f436EA-A127-4EF8-957C-8048606FF670
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MODULE_TYPE = UEFI_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = InitializeSnpNiiDriver
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UNLOAD_IMAGE = NetLibDefaultUnload
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 EBC
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#
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# DRIVER_BINDING = mSimpleNetworkDriverBinding
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# COMPONENT_NAME = gSimpleNetworkComponentName
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# COMPONENT_NAME2 = gSimpleNetworkComponentName2
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#
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[Sources]
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Receive.c
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Snp.h
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Nvdata.c
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Get_status.c
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Start.c
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Snp.c
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Stop.c
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Statistics.c
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Reset.c
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Shutdown.c
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Mcast_ip_to_mac.c
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Transmit.c
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WaitForPacket.c
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Receive_filters.c
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Initialize.c
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ComponentName.c
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Callback.c
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Station_address.c
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[Packages]
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MdePkg/MdePkg.dec
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NetworkPkg/NetworkPkg.dec
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[LibraryClasses]
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UefiLib
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BaseLib
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UefiBootServicesTableLib
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UefiDriverEntryPoint
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BaseMemoryLib
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DebugLib
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NetLib
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[Guids]
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gEfiEventExitBootServicesGuid ## SOMETIMES_CONSUMES ## Event
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[Protocols]
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gEfiSimpleNetworkProtocolGuid ## BY_START
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gEfiDevicePathProtocolGuid ## TO_START
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gEfiNetworkInterfaceIdentifierProtocolGuid_31 ## TO_START
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gEfiPciIoProtocolGuid ## TO_START
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[Pcd]
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gEfiNetworkPkgTokenSpaceGuid.PcdSnpCreateExitBootServicesEvent ## CONSUMES
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[UserExtensions.TianoCore."ExtraFiles"]
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SnpDxeExtra.uni
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