From: Abner Chang <abner.ch...@amd.com>
EDKII Redfish Feature Core DXE driver provides the
protocol interface to the auto-generated Redfish
feature driver to register itself for the Redfish
resource URI it manages.
Refer to the Readme.md for the details.
Signed-off-by: Abner Chang <abner.ch...@amd.com>
Cc: Nickle Wang <nick...@nvidia.com>
Cc: Igor Kulchytskyy <ig...@ami.com>
---
RedfishClientPkg/RedfishClientPkg.dec | 13 +-
.../RedfishClientComponents.dsc.inc | 2 +
RedfishClientPkg/RedfishClient.fdf.inc | 1 +
.../RedfishFeatureCoreDxe.inf | 49 +++
.../Include/Protocol/EdkIIRedfishFeature.h | 117 +++++
.../RedfishFeatureCoreDxe.h | 45 ++
.../RedfishFeatureCoreDxe.c | 403 ++++++++++++++++++
RedfishClientPkg/Readme.md | 36 ++
8 files changed, 665 insertions(+), 1 deletion(-)
create mode 100644
RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
create mode 100644 RedfishClientPkg/Include/Protocol/EdkIIRedfishFeature.h
create mode 100644
RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
create mode 100644
RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
diff --git a/RedfishClientPkg/RedfishClientPkg.dec
b/RedfishClientPkg/RedfishClientPkg.dec
index 4038a47bd5..6da0468e65 100644
--- a/RedfishClientPkg/RedfishClientPkg.dec
+++ b/RedfishClientPkg/RedfishClientPkg.dec
@@ -15,10 +15,21 @@
[Includes]
Include
-
[LibraryClasses]
[Protocols]
+ ## Include/Protocol/EdkIIRedfishFeature.h
+ gEdkIIRedfishFeatureProtocolGuid = { 0x785CC694, 0x4930, 0xEFBF, { 0x2A,
0xCB, 0xA4, 0xB6, 0xA1, 0xCC, 0xAA, 0x34 } }
[Guids]
gEfiRedfishClientPkgTokenSpaceGuid = { 0x8c444dae, 0x728b, 0x48ee, {
0x9e, 0x19, 0x8f, 0x0a, 0x3d, 0x4e, 0x9c, 0xc8 } }
+
+[PcdsFixedAtBuild]
+
gEfiRedfishClientPkgTokenSpaceGuid.PcdMaxRedfishSchemaStringSize|32|UINT32|0x10000001
+
gEfiRedfishClientPkgTokenSpaceGuid.PcdMaxRedfishSchemaVersionSize|8|UINT32|0x10000002
+ #
+ # gEfiEventReadyToBootGuid is the default event to startup Redfish feature
drivers.
+ # { 0x7CE88FB3, 0x4BD7, 0x4679, { 0x87, 0xA8, 0xA8, 0xD8, 0xDE, 0xE5, 0x0D,
0x2B }}
+ #
+
gEfiRedfishClientPkgTokenSpaceGuid.PcdEdkIIRedfishFeatureDriverStartupEventGuid|{0xB3,
0x8F, 0xE8, 0x7C, 0xD7, 0x4B, 0x79, 0x46, 0x87, 0xA8, 0xA8, 0xD8, 0xDE, 0xE5,
0x0D, 0x2B}|VOID*|0x10000003
+
diff --git a/RedfishClientPkg/RedfishClientComponents.dsc.inc
b/RedfishClientPkg/RedfishClientComponents.dsc.inc
index 0648fa9d54..e4e2619bfb 100644
--- a/RedfishClientPkg/RedfishClientComponents.dsc.inc
+++ b/RedfishClientPkg/RedfishClientComponents.dsc.inc
@@ -13,4 +13,6 @@
##
!if $(REDFISH_CLIENT) == TRUE
+ RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
!endif
+
diff --git a/RedfishClientPkg/RedfishClient.fdf.inc
b/RedfishClientPkg/RedfishClient.fdf.inc
index 4f0714004e..d4c5874787 100644
--- a/RedfishClientPkg/RedfishClient.fdf.inc
+++ b/RedfishClientPkg/RedfishClient.fdf.inc
@@ -11,4 +11,5 @@
#
##
!if $(REDFISH_CLIENT) == TRUE
+ INF RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
!endif
diff --git a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
new file mode 100644
index 0000000000..5a2cd7fecc
--- /dev/null
+++ b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.inf
@@ -0,0 +1,49 @@
+## @file
+# RedfishFeatureCoreDxe is the DXE driver which provides
+# EdkIIRedfishFeatureCoreProtocol to EDK2 Redfish Feature
+# drivers for the registration.
+#
+# (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x0001000b
+ BASE_NAME = RedfishFeatureCoreDxe
+ FILE_GUID = 1E01A624-4161-F1F1-25BC-D28E77420D8E
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = RedfishFeatureCoreEntryPoint
+
+#
+# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64 RISCV64
+#
+
+[Sources]
+ RedfishFeatureCoreDxe.c
+ RedfishFeatureCoreDxe.h
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ RedfishClientPkg/RedfishClientPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ MemoryAllocationLib
+ PrintLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ UefiLib
+
+[Protocols]
+ gEdkIIRedfishFeatureProtocolGuid ## BY_START
+
+[Pcd]
+
gEfiRedfishClientPkgTokenSpaceGuid.PcdEdkIIRedfishFeatureDriverStartupEventGuid
+
+[Depex]
+ TRUE
diff --git a/RedfishClientPkg/Include/Protocol/EdkIIRedfishFeature.h
b/RedfishClientPkg/Include/Protocol/EdkIIRedfishFeature.h
new file mode 100644
index 0000000000..04b65a06a3
--- /dev/null
+++ b/RedfishClientPkg/Include/Protocol/EdkIIRedfishFeature.h
@@ -0,0 +1,117 @@
+/** @file
+ This file defines the EDKII_REDFISH_FEATURE_PROTOCOL interface.
+
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef EDKII_REDFISH_FEATURE_H_
+#define EDKII_REDFISH_FEATURE_H_
+
+typedef struct _EDKII_REDFISH_FEATURE_PROTOCOL EDKII_REDFISH_FEATURE_PROTOCOL;
+
+#define EDKII_REDFISH_FEATURE_PROTOCOL_GUID \
+ { \
+ 0x785CC694, 0x4930, 0xEFBF, { 0x2A, 0xCB, 0xA4, 0xB6, 0xA1, 0xCC, 0xAA,
0x34 } \
+ }
+
+typedef enum {
+ CallbackActionNone = 0, ///< Invalid action
+ CallbackActionStartOperation, ///< Start the operations on Redfish resource
+ CallbackActionMax
+} FEATURE_CALLBACK_ACTION;
+
+typedef enum {
+ InformationTypeNone = 0, ///< Invalid information.
+ InformationTypeCollectionMemberUri, ///< URI to the new created collection
member.
+ InformationTypeMax
+} FEATURE_RETURNED_INFORMATION_TYPE;
+
+typedef struct {
+ FEATURE_RETURNED_INFORMATION_TYPE Type;
+} FEATURE_RETURNED_INFORMATION;
+
+/**
+ The callback function provided by Redfish Feature driver.
+
+ @param[in] This Pointer to EDKII_REDFISH_FEATURE_PROTOCOL
instance.
+ @param[in] FeatureAction The action Redfish feature driver should
take.
+ @param[in] Context The context of Redfish feature driver.
+ @param[in,out] InformationReturned The pointer to retrive the pointer to
+ FEATURE_RETURNED_INFOMATION. The memory
block of this
+ information should be freed by caller.
+
+ @retval EFI_SUCCESS Redfish feature driver callback is executed
successfully.
+ @retval Others Some errors happened.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *REDFISH_FEATURE_CALLBACK)(
+ IN EDKII_REDFISH_FEATURE_PROTOCOL *This,
+ IN FEATURE_CALLBACK_ACTION FeatureAction,
+ IN VOID *Context,
+ IN OUT FEATURE_RETURNED_INFORMATION **InformationReturned
+ );
+
+/**
+ The registration function for the Redfish Feature driver.
+
+ @param[in] This Pointer to EDKII_REDFISH_FEATURE_PROTOCOL
instance.
+ @param[in] FeatureManagedUri The URI represents the hierarchy path of
the Redfish
+ resource in the entire Redfish data model
that managed
+ by Redfish feature driver . Each node in
the hierarchy
+ path is the property name defined in the
schema of the
+ resource.
+ @param[in] Callback Callback routine associated with this
registration that
+ provided by Redfish feature driver to
execute the action
+ on Redfish resource which is managed by
this Redfish
+ feature driver.
+ @param[in] Context The context of the registering feature
driver. The pointer
+ to the conext is delivered through callback
function.
+ @retval EFI_SUCCESS Redfish feature driver is registered
successfully.
+ @retval Others Some error happened.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *REDFISH_FEATURE_REGISTER)(
+ IN EDKII_REDFISH_FEATURE_PROTOCOL *This,
+ IN EFI_STRING FeatureManagedUri,
+ IN REDFISH_FEATURE_CALLBACK Callback,
+ IN VOID *Context
+ );
+
+/**
+ The unregistration function for the Redfish Feature driver.
+
+ @param[in] This Pointer to EDKII_REDFISH_FEATURE_PROTOCOL
instance.
+ @param[in] FeatureManagedUri The URI represents the hierarchy path of
the Redfish
+ resource in the entire Redfish data model
that managed
+ by Redfish feature driver . Each node in
the hierarchy
+ path is the property name defined in the
schema of the
+ resource.
+ @param[in] Context The context used for the previous feature
driver
+ registration.
+ @retval EFI_SUCCESS Redfish feature driver is registered
successfully.
+ @retval Others Some error happened.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *REDFISH_FEATURE_UNREGISTER)(
+ IN EDKII_REDFISH_FEATURE_PROTOCOL *This,
+ IN EFI_STRING FeatureManagedUri,
+ IN VOID *Context
+ );
+
+struct _EDKII_REDFISH_FEATURE_PROTOCOL {
+ REDFISH_FEATURE_REGISTER Register;
+ REDFISH_FEATURE_UNREGISTER Unregister;
+};
+
+extern EFI_GUID gEdkIIRedfishFeatureProtocolGuid;
+
+#endif
diff --git a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
new file mode 100644
index 0000000000..71432a1aa9
--- /dev/null
+++ b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
@@ -0,0 +1,45 @@
+/** @file
+ Definitions of RedfishFeatureCoreDxe
+
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef EDKII_REDFISH_FEATURE_CORE_DXE_H_
+#define EDKII_REDFISH_FEATURE_CORE_DXE_H_
+
+#include <Protocol/EdkIIRedfishFeature.h>
+
+#include <Base.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+#define MaxNodeNameLength 64
+#define NodeSeperator L'/'
+#define NodeIsCollectionLeftBracket '{'
+#define NodeIsCollectionRightBracket '}'
+
+typedef struct _REDFISH_FEATURE_INTERNAL_DATA REDFISH_FEATURE_INTERNAL_DATA;
+struct _REDFISH_FEATURE_INTERNAL_DATA {
+ REDFISH_FEATURE_INTERNAL_DATA *SiblingList; ///< Next same level
in hierarchy of resource URI.
+ REDFISH_FEATURE_INTERNAL_DATA *ChildList; ///< Next level in
hierarchy of resource URI.
+ EFI_STRING NodeName; ///< Name of the node
in hierarchy of resource URI.
+ REDFISH_FEATURE_CALLBACK Callback; ///< Callback
function of Redfish feature driver.
+ VOID *Context; ///< Context of
feature driver.
+ FEATURE_RETURNED_INFORMATION *ReturnedInformation; ///< Information
returned from Redfish feature driver.
+ UINT32 Flags;
+};
+
+#define REDFISH_FEATURE_INTERNAL_DATA_IS_COLLECTION 0x00000001
+
+typedef struct {
+ EDKII_REDFISH_FEATURE_PROTOCOL *This;
+ FEATURE_CALLBACK_ACTION Action;
+} REDFISH_FEATURE_STARTUP_CONTEXT;
+#endif
diff --git a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
new file mode 100644
index 0000000000..5cd89872c1
--- /dev/null
+++ b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
@@ -0,0 +1,403 @@
+/** @file
+ RedfishFeatureCoreDxe produces EdkIIRedfishFeatureCoreProtocol
+ for EDK2 Redfish Feature driver registration.
+
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <RedfishFeatureCoreDxe.h>
+
+EFI_EVENT mEdkIIRedfishFeatureDriverStartupEvent;
+REDFISH_FEATURE_STARTUP_CONTEXT mFeatureDriverStartupContext;
+REDFISH_FEATURE_INTERNAL_DATA *ResourceUriNodeList;
+
+/**
+ Startup child feature drivers and it's sibing feature drivers.
+
+ @param[in] ThisFeatureDriverList This feature driver list.
+ @param[in] StartupContext Start up information
+
+**/
+VOID
+StartUpFeatureDriver (
+ IN REDFISH_FEATURE_INTERNAL_DATA *ThisFeatureDriverList,
+ IN REDFISH_FEATURE_STARTUP_CONTEXT *StartupContext
+ )
+{
+ EFI_STATUS Status;
+ REDFISH_FEATURE_INTERNAL_DATA *ThisList;
+
+ ThisList = ThisFeatureDriverList;
+ while (TRUE) {
+ if (ThisList->Callback != NULL) {
+ Status = ThisList->Callback (
+ StartupContext->This,
+ StartupContext->Action,
+ ThisList->Context,
+ &ThisList->ReturnedInformation
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a: Callback to EDK2 Redfish feature driver
fail.", __func__));
+ }
+ }
+
+ if (ThisList->ChildList != NULL) {
+ StartUpFeatureDriver (ThisList->ChildList, StartupContext);
+ }
+
+ //
+ // Check sibling Redfish feature driver.
+ //
+ if (ThisList->SiblingList == NULL) {
+ break;
+ }
+
+ //
+ // Go next sibling Redfish feature driver.
+ //
+ ThisList = ThisList->SiblingList;
+ }
+}
+
+/**
+ Callback routine when mEdkIIRedfishFeatureDriverStartupEvent
+ is signaled.
+
+ @param[in] Event Event whose notification function is being
invoked.
+ @param[in] Context The pointer to the notification function's
context,
+ which is implementation-dependent.
+
+**/
+VOID
+EFIAPI
+RedfishFeatureDriverStartup (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ REDFISH_FEATURE_STARTUP_CONTEXT *StartupContext;
+
+ StartupContext = (REDFISH_FEATURE_STARTUP_CONTEXT *)Context;
+ //
+ // Invoke EDK2 Redfish feature driver callback to start up
+ // the Redfish operations.
+ //
+ if (ResourceUriNodeList == NULL) {
+ return;
+ }
+
+ //
+ // Invoke the callback by the hierarchy level
+ //
+ StartUpFeatureDriver (ResourceUriNodeList, StartupContext);
+}
+
+/**
+ Create new internal data instance.
+
+ @param[in,out] PtrToNewInternalData Pointer to receive new instance of
+ REDFISH_FEATURE_INTERNAL_DATA.
+ @param[in] NodeName Name of URI node.
+
+ @retval EFI_SUCCESS New entry is inserted successfully.
+ @retval EFI_INVALID_PARAMETER Improper given parameters.
+ @retval EFI_OUT_OF_RESOURCES Lack of memory for the internal data
structure.
+
+**/
+EFI_STATUS
+NewInternalInstance (
+ IN OUT REDFISH_FEATURE_INTERNAL_DATA **PtrToNewInternalData,
+ IN EFI_STRING NodeName
+ )
+{
+ REDFISH_FEATURE_INTERNAL_DATA *NewInternalData;
+
+ if ((PtrToNewInternalData == NULL) || (NodeName == NULL)) {
+ DEBUG ((DEBUG_ERROR, "%a: Inproper given parameters\n", __func__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *PtrToNewInternalData = NULL;
+ NewInternalData = AllocateZeroPool (sizeof
(REDFISH_FEATURE_INTERNAL_DATA));
+ if (NewInternalData == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: No memory for REDFISH_FEATURE_INTERNAL_DATA\n",
__func__));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ NewInternalData->NodeName = AllocateZeroPool (StrSize (NodeName));
+ StrnCpyS (NewInternalData->NodeName, StrSize (NodeName), (CONST CHAR16
*)NodeName, StrLen (NodeName));
+ NewInternalData->SiblingList = NULL;
+ NewInternalData->ChildList = NULL;
+ if ((NodeName[0] == (UINT16)NodeIsCollectionLeftBracket) &&
+ (NodeName[StrLen (NodeName) - 1] ==
(UINT16)NodeIsCollectionRightBracket))
+ {
+ NewInternalData->Flags |= REDFISH_FEATURE_INTERNAL_DATA_IS_COLLECTION;
+ }
+
+ *PtrToNewInternalData = NewInternalData;
+ return EFI_SUCCESS;
+}
+
+/**
+ Insert the URI node into internal data structure
+
+ @param[in] HeadEntryToInsert The head entry to start the searching.
+ @param[in] NodeName Name of URI node.
+ @param[in, out] NextNodeEntry Pointer to receive the pointer of next
head
+ entry for inserting the follow up nodes.
+ The returned LIST_ENTRY is the address
of
+ ChildList link list.
+ @retval EFI_SUCCESS New entry is inserted successfully.
+ @retval EFI_INVALID_PARAMETER Improper given parameters.
+ @retval EFI_OUT_OF_RESOURCES Lack of memory for the internal data
structure.
+
+**/
+EFI_STATUS
+InsertRedfishFeatureUriNode (
+ IN REDFISH_FEATURE_INTERNAL_DATA *HeadEntryToInsert,
+ IN EFI_STRING NodeName,
+ IN OUT REDFISH_FEATURE_INTERNAL_DATA **NextNodeEntry
+ )
+{
+ EFI_STATUS Status;
+ REDFISH_FEATURE_INTERNAL_DATA *NewInternalData;
+ REDFISH_FEATURE_INTERNAL_DATA *ThisInternalData;
+ REDFISH_FEATURE_INTERNAL_DATA *SiblingList;
+
+ if (NodeName == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: Node name is NULL.\n", __func__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (NextNodeEntry == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: NextNodeEntry can't be NULL.\n", __func__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((HeadEntryToInsert == NULL) || (HeadEntryToInsert->ChildList == NULL)) {
+ Status = NewInternalInstance (&NewInternalData, NodeName);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (HeadEntryToInsert == NULL) {
+ ResourceUriNodeList = NewInternalData;
+ } else {
+ HeadEntryToInsert->ChildList = NewInternalData;
+ }
+
+ *NextNodeEntry = NewInternalData;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Go through sibling list to find the entry.
+ //
+ ThisInternalData = HeadEntryToInsert;
+ SiblingList = ThisInternalData->SiblingList;
+ while (TRUE) {
+ if (StrCmp ((CONST CHAR16 *)ThisInternalData->NodeName, (CONST CHAR16
*)NodeName) == 0) {
+ *NextNodeEntry = ThisInternalData->ChildList;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // If sibing exist?
+ //
+ if (SiblingList == NULL) {
+ Status = NewInternalInstance (&NewInternalData, NodeName);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ThisInternalData->SiblingList = NewInternalData;
+ *NextNodeEntry = NewInternalData->ChildList;
+ return EFI_SUCCESS;
+ }
+
+ SiblingList = SiblingList->SiblingList;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The registration function for the Redfish Feature driver.
+
+ @param[in] This Pointer to EDKII_REDFISH_FEATURE_PROTOCOL
instance.
+ @param[in] FeatureManagedUri The URI represents the hierarchy path of
the Redfish
+ resource in the entire Redfish data model
that managed
+ by Redfish feature driver . Each node in
the hierarchy
+ path is the property name defined in the
schema of the
+ resource.
+ e.g. "ServiceRoot/" - Managed by
ServiceRoot feature driver
+ "ServiceRoot/Systems[]/" - Managed by
ComputerSystemCollection feature driver
+ "ServiceRoot/Systems[1]/" - Managed by
ComputerSystem feature driver
+ "ServiceRoot/Systems[2]/Bios/" -
Managed by Bios feature driver
+ @param[in] Callback Callback routine associated with this
registration that
+ provided by Redfish feature driver to
execute the action
+ on Redfish resource which is managed by
this Redfish
+ feature driver.
+ @param[in] Context The context of the registering feature
driver. The pointer
+ to the conext is delivered through callback
function.
+ @retval EFI_SUCCESS Redfish feature driver is registered
successfully.
+ @retval EFI_SUCCESS Redfish feature driver is registered
successfully.
+ @retval EFI_INVALID_PARAMETER Improper given parameters or fail to
register
+ feature driver.
+ @retval EFI_OUT_OF_RESOURCES Lack of memory for the internal data
structure.
+ @retval Others Some error happened.
+
+**/
+EFI_STATUS
+EFIAPI
+RedfishFeatureRegister (
+ IN EDKII_REDFISH_FEATURE_PROTOCOL *This,
+ IN EFI_STRING FeatureManagedUri,
+ IN REDFISH_FEATURE_CALLBACK Callback,
+ IN VOID *Context
+ )
+{
+ CHAR16 NodeName[MaxNodeNameLength];
+ EFI_STATUS Status;
+ UINTN Index;
+ UINTN AnchorIndex;
+ UINTN UriLength;
+ REDFISH_FEATURE_INTERNAL_DATA *ThisUriNode;
+
+ if ((FeatureManagedUri == NULL) || (Callback == NULL)) {
+ DEBUG ((DEBUG_ERROR, "%a: The given parameter is invalid\n", __func__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Walk through URI which managed by this EDK2 Redfish feature driver.
+ //
+ UriLength = StrLen (FeatureManagedUri) + 1; // Add one NULL for the last
node.
+ Index = 0;
+ AnchorIndex = 0;
+ ThisUriNode = ResourceUriNodeList;
+ do {
+ if ((Index - AnchorIndex + 1) >= MaxNodeNameLength) {
+ // Increase one for the NULL terminator
+ DEBUG ((DEBUG_ERROR, "%a: the length of node name is >=
MaxNodeNameLength\n", __func__));
+ ASSERT (FALSE);
+ }
+
+ NodeName[Index - AnchorIndex] = *(FeatureManagedUri + Index);
+ if ((NodeName[Index - AnchorIndex] == NodeSeperator) || (NodeName[Index -
AnchorIndex] == (CHAR16)0)) {
+ NodeName[Index - AnchorIndex] = 0;
+ AnchorIndex = Index + 1;
+ //
+ // Insert node
+ //
+ if (StrLen (NodeName) != 0) {
+ Status = InsertRedfishFeatureUriNode (ThisUriNode, NodeName,
&ThisUriNode);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+ }
+
+ Index++;
+ } while ((Index < UriLength));
+
+ if (ThisUriNode == NULL) {
+ //
+ // No URI node was created
+ //
+ DEBUG ((DEBUG_ERROR, "%a: No URI node is added\n", __func__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Add feature driver info to internal data instance.
+ //
+ ThisUriNode->Callback = Callback;
+ ThisUriNode->Context = Context;
+ return EFI_SUCCESS;
+}
+
+/**
+ The unregistration function for the Redfish Feature driver.
+
+ @param[in] This Pointer to EDKII_REDFISH_FEATURE_PROTOCOL
instance.
+ @param[in] FeatureManagedUri The URI represents the hierarchy path of
the Redfish
+ resource in the entire Redfish data model
that managed
+ by Redfish feature driver . Each node in
the hierarchy
+ path is the property name defined in the
schema of the
+ resource.
+ @param[in] Context The context used for the previous feature
driver
+ registration.
+ @retval EFI_SUCCESS Redfish feature driver is registered
successfully.
+ @retval Others Some error happened.
+
+**/
+EFI_STATUS
+EFIAPI
+RedfishFeatureUnregister (
+ IN EDKII_REDFISH_FEATURE_PROTOCOL *This,
+ IN EFI_STRING FeatureManagedUri,
+ IN VOID *Context
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+EDKII_REDFISH_FEATURE_PROTOCOL mRedfishFeatureProtocol = {
+ RedfishFeatureRegister,
+ RedfishFeatureUnregister
+};
+
+/**
+ Main entry for this driver.
+
+ @param[in] ImageHandle Image handle this driver.
+ @param[in] SystemTable Pointer to SystemTable.
+
+ @retval EFI_SUCESS This function always complete successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+RedfishFeatureCoreEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+ EFI_GUID *EventGuid;
+
+ Handle = NULL;
+ ResourceUriNodeList = NULL;
+ EventGuid = (EFI_GUID *)PcdGetPtr
(PcdEdkIIRedfishFeatureDriverStartupEventGuid);
+
+ ZeroMem ((VOID *)&mFeatureDriverStartupContext, sizeof
(REDFISH_FEATURE_STARTUP_CONTEXT));
+ mFeatureDriverStartupContext.This = &mRedfishFeatureProtocol;
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ RedfishFeatureDriverStartup,
+ (CONST VOID *)&mFeatureDriverStartupContext,
+ EventGuid,
+ &mEdkIIRedfishFeatureDriverStartupEvent
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Install the RedfishCredentialProtocol onto Handle.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEdkIIRedfishFeatureProtocolGuid,
+ &mRedfishFeatureProtocol,
+ NULL
+ );
+ return Status;
+}
diff --git a/RedfishClientPkg/Readme.md b/RedfishClientPkg/Readme.md
index 9e56fb9039..18a27633cf 100644
--- a/RedfishClientPkg/Readme.md
+++ b/RedfishClientPkg/Readme.md
@@ -119,6 +119,42 @@ struct _EDKII_REDFISH_PLATFORM_CONFIG_PROTOCOL {
For those Non-EDK2 HII-based platform configuration formats, the driver
instance
can provide its own implementation to get or set the platform configurations.
+### EDKII Redfish Feature Core DXE Driver ***[[12]](#[0])***
+EDKII Redfish Feature Core DXE driver provides the protocol interface to
+the auto-generated Redfish feature driver to register itself for the
+Redfish resource URI it manages.
+
+```C
+struct _EDKII_REDFISH_FEATURE_PROTOCOL {
+ REDFISH_FEATURE_REGISTER Register;
+ REDFISH_FEATURE_UNREGISTER Unregister;
+};
+```
+
+Redfish Feature Core DXE driver records the
+URI according to the URI hierarchy, and then it starts up the Redfish
+feature drivers based on the hierarchy when the particular event
+***[[11]](#[0])*** is triggered. This makes sure the upper-level Redfish
+resource is built up before the lower-level resource. For example,
+ComputerSystem resource must be ready before the Memory resource managed
+by MemoryCollection because the Memory resource is part of ComputerSystem
+resource.
+
+### Start-Up Event to Trigger EDKII Redfish Feature Core ***[[11]](#[0])***
+This is an EFI event for triggering EDKII Redfish Feature Core to travel
+URIs in the database and execute the callback that registered by Redfish
feature
+drivers. The event GUID is defined in below PCD and is default set to
+**gEfiEventReadyToBootGuid**.
+
+```C
+PcdEdkIIRedfishFeatureDriverStartupEventGuid
+```
+
+This PCD can be overridden to any events based on the platform
+implementation. EDKII Redfish Feature Core can be triggered earlier,
+for example before the BDS or in the early DXE phase if the platform provides
+the EFI REST EX protocol which is available before the BDS phase.
+
### EDK2 HII VFR Form ***[[8]](#[0])***
According to **UEFI spec 2.9 section 35.6 Form Browser Protocol**,
**EFI_HII_REST_STYLE_FORMSET_GUID** is used on HII form to indicate that HII
--
2.37.1.windows.1
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