Reviewed-by: Isaac Oram <isaac.w.o...@intel.com>

I noted that the BaseManageabilityTransportIpmiHelper.c file header comment 
indicates that this is a NULL library implementation which seems 
incorrect/misleading.  I think that this can be fixed before pushing.

-----Original Message-----
From: abner.ch...@amd.com <abner.ch...@amd.com> 
Sent: Tuesday, May 9, 2023 12:56 AM
To: devel@edk2.groups.io
Cc: Oram, Isaac W <isaac.w.o...@intel.com>; Abdul Lateef Attar 
<abdat...@amd.com>; Nickle Wang <nick...@nvidia.com>; Tinh Nguyen 
<tinhngu...@os.amperecomputing.com>
Subject: [edk2-platforms][PATCH 1/2] ManageabilityPkg: Add Manageability IPMI 
helper Library

From: Abner Chang <abner.ch...@amd.com>

Add IPMI helper library to print debug message of IPMI Completion Code in human 
readable string and return the transport interface additional status.

Signed-off-by: Abner Chang <abner.ch...@amd.com>
Cc: Isaac Oram <isaac.w.o...@intel.com>
Cc: Abdul Lateef Attar <abdat...@amd.com>
Cc: Nickle Wang <nick...@nvidia.com>
Cc: Tinh Nguyen <tinhngu...@os.amperecomputing.com>
---
 .../BaseManageabilityTransportHelper.inf      |  1 +
 .../Library/ManageabilityTransportHelperLib.h | 24 +++++++
 .../Library/ManageabilityTransportIpmiLib.h   | 13 +++-
 .../Library/ManageabilityTransportLib.h       | 11 +--
 .../BaseManageabilityTransportIpmiHelper.c    | 70 +++++++++++++++++++
 5 files changed, 112 insertions(+), 7 deletions(-)  create mode 100644 
Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportIpmiHelper.c

diff --git 
a/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportHelper.inf
 
b/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportHelper.inf
index c9e5eaef60..0936449fda 100644
--- 
a/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportHelper.inf
+++ b/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelper
+++ Lib/BaseManageabilityTransportHelper.inf
@@ -21,6 +21,7 @@
 
 [Sources]
   BaseManageabilityTransportHelper.c
+  BaseManageabilityTransportIpmiHelper.c
 
 [LibraryClasses]
   BaseMemoryLib
diff --git 
a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportHelperLib.h 
b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportHelperLib.h
index c2c98d6c2d..11a1bd0521 100644
--- 
a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportHelperLib.h
+++ b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportHe
+++ lperLib.h
@@ -187,4 +187,28 @@ HelperManageabilityDebugPrint (
   ...
   );
 
+///
+/// IPMI Helper Functions.
+///
+
+/**
+  This function returns a human readable string of IPMI KCS Completion 
+Code
+  and returns the corresponding additional status of transport interface.
+
+  @param [in]  CompletionCode     The Completion Code returned from KCS.
+  @param [out] CompletionCodeStr  Human readable string of IPMI Completion 
Code.
+  @param [out] AdditionalStatus   Return the addtional status.
+
+  @retval  EFI_SUCCESS            The information of Completion Code is 
returned.
+  @retval  EFI_NOT_FOUND          No information of Completion Code is 
returned.
+  @retval  EFI_INVALID_PARAMETER  The given parameter is incorrect.
+
+**/
+EFI_STATUS
+IpmiHelperCheckCompletionCode (
+  IN   UINT8                                      CompletionCode,
+  OUT  CHAR16                                     **CompletionCodeStr,
+  OUT  MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS  *AdditionalStatus
+  );
+
 #endif
diff --git 
a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportIpmiLib.h 
b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportIpmiLib.h
index 1628255a6a..6d136e460f 100644
--- a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportIpmiLib.h
+++ b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportIp
+++ miLib.h
@@ -16,9 +16,18 @@
 /// the payload.
 ///
 typedef struct {
-  UINT8    Lun:2;
-  UINT8    NetFn:6;
+  UINT8    Lun   : 2;
+  UINT8    NetFn : 6;
   UINT8    Command;
 } MANAGEABILITY_IPMI_TRANSPORT_HEADER;
 
+///
+/// The IPMI Completion Code mapping.
+///
+typedef struct {
+  UINT8                                        CompletionCode;
+  CHAR16                                       *CompletionCodeString;
+  MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS    AdditionalStatus;
+} MANAGEABILITY_IPMI_COMPLETTION_CODE_MAPPING;
+
 #endif
diff --git 
a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportLib.h 
b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportLib.h
index 04072aee89..f423a1ed44 100644
--- a/Features/ManageabilityPkg/Include/Library/ManageabilityTransportLib.h
+++ b/Features/ManageabilityPkg/Include/Library/ManageabilityTransportLi
+++ b.h
@@ -61,11 +61,12 @@ typedef union {
 /// Additional transport interface status.
 ///
 typedef UINT32 MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS;
-#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_NO_ERRORS      0x00000000
-#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_ERROR          0x00000001
-#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_BUSY_IN_READ   0x00000002
-#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_BUSY_IN_WRITE  0x00000004 
-#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_NOT_AVAILABLE  0xffffffff
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_NO_ERRORS        0x00000000
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_ERROR            0x00000001
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_BUSY_IN_READ     0x00000002
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_BUSY_IN_WRITE    0x00000004
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_INVALID_COMMAND  0x00000008
+#define MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_NOT_AVAILABLE    0xffffffff
 
 ///
 /// Additional transport interface features.
diff --git 
a/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportIpmiHelper.c
 
b/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelperLib/BaseManageabilityTransportIpmiHelper.c
new file mode 100644
index 0000000000..8710cafc99
--- /dev/null
+++ b/Features/ManageabilityPkg/Library/BaseManageabilityTransportHelper
+++ Lib/BaseManageabilityTransportIpmiHelper.c
@@ -0,0 +1,70 @@
+/** @file
+  Null instance of Manageability IPMI Helper Library
+
+  Copyright (C) 2023 Advanced Micro Devices, Inc. All rights 
+reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent **/
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/ManageabilityTransportIpmiLib.h>
+
+#include <IndustryStandard/Ipmi.h>
+
+//
+// BaseManageabilityTransportHelper is used by PEI, DXE and SMM.
+// Make sure the global variables added here should be unchangeable.
+//
+MANAGEABILITY_IPMI_COMPLETTION_CODE_MAPPING  IpmiCompletionCodeMapping[] = {
+  { IPMI_COMP_CODE_NORMAL,          L"IPMI Completion Code - Normal",          
MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_NO_ERRORS       },
+  { IPMI_COMP_CODE_NODE_BUSY,       L"IPMI Completion Code - Busy",            
MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_BUSY_IN_READ    },
+  { IPMI_COMP_CODE_INVALID_COMMAND, L"IPMI Completion Code - Invalid 
+command", MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS_INVALID_COMMAND } 
+};
+
+UINT8  IpmiCompletionCodeMappingEntries = sizeof 
+(IpmiCompletionCodeMapping) / sizeof 
+(MANAGEABILITY_IPMI_COMPLETTION_CODE_MAPPING);
+
+///
+/// IPMI Helper Functions.
+///
+
+/**
+  This function returns a human readable string of IPMI KCS Completion 
+Code
+  and returns the corresponding additional status of transport interface.
+
+  @param [in]  CompletionCode     The Completion Code returned from KCS.
+  @param [out] CompletionCodeStr  Human readable string of IPMI Completion 
Code.
+  @param [out] AdditionalStatus   Return the addtional status.
+
+  @retval  EFI_SUCCESS            The information of Completion Code is 
returned.
+  @retval  EFI_NOT_FOUND          No information of Completion Code is 
returned.
+  @retval  EFI_INVALID_PARAMETER  The given parameter is incorrect.
+
+**/
+EFI_STATUS
+IpmiHelperCheckCompletionCode (
+  IN   UINT8                                      CompletionCode,
+  OUT  CHAR16                                     **CompletionCodeStr,
+  OUT  MANAGEABILITY_TRANSPORT_ADDITIONAL_STATUS  *AdditionalStatus
+  )
+{
+  UINT8                                        Index;
+  MANAGEABILITY_IPMI_COMPLETTION_CODE_MAPPING  *ThisCcMapping;
+
+  if ((CompletionCodeStr == NULL) || (AdditionalStatus == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *AdditionalStatus = 0;
+  ThisCcMapping     = IpmiCompletionCodeMapping;
+  for (Index = 0; Index < IpmiCompletionCodeMappingEntries; Index++) {
+    if (ThisCcMapping->CompletionCode == CompletionCode) {
+      *CompletionCodeStr = ThisCcMapping->CompletionCodeString;
+      *AdditionalStatus  = ThisCcMapping->AdditionalStatus;
+      return EFI_SUCCESS;
+    }
+
+    ThisCcMapping++;
+  }
+
+  return EFI_NOT_FOUND;
+}
--
2.37.1.windows.1



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