[AMD Official Use Only - General]

Hi Sean,
I was struggling when introduce IPMI KCS base IO PCD in Mde, although it is a  industry value but seems it is fine to have it in ManageabilityPkg. How do you think if we relocate those IPMI PCDs back to ManageabilityPkg?

Thanks
Abner


From: Sean Brogan <spbrogan@outlook.com>
Sent: Tuesday, April 23, 2024 4:18 AM
To: devel@edk2.groups.io; Attar, AbdulLateef (Abdul Lateef) <AbdulLateef.Attar@amd.com>; Liming Gao <gaoliming@byosoft.com.cn>; Michael D Kinney <michael.d.kinney@intel.com>; Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Chang, Abner <Abner.Chang@amd.com>; Chris Fernald <chris.fernald@outlook.com>
Subject: Re: [edk2-devel] [PATCH RESEND v1] MdePkg: Adds a PCD to define IPMI interface type

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.


This seems like a bad design to require the ipmi interface type at such a high level in the code tree.  UEFI provides plenty protocol and library abstractions for IPMI so I would really prefer not to leak this type of information into a PCD defined in MdePkg.  Happy to discuss IPMI support and I would really like to see edk2, edk2-platforms/Features/ManageabilityPkg at master · tianocore/edk2-platforms (github.com)<https://github.com/tianocore/edk2-platforms/tree/master/Features/ManageabilityPkg>,  microsoft/mu_feature_ipmi: Project Mu - Feature Repo- Firmware support for IPMI (github.com)<https://github.com/microsoft/mu_feature_ipmi>, and commercial vendors find some sort of alignment going forward as no one wins with the mess that is in the industry now.

Thanks

Sean


On 4/22/2024 3:50 AM, Abdul Lateef Attar via groups.io wrote:
Gentle reminder, review please.

On 30-03-2024 10:52, Abdul Lateef Attar wrote:

Define IPMI interface type as per specification version 2.0,
section C1-1.1.

Cc: Abner Chang <abner.chang@amd.com><mailto:abner.chang@amd.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com><mailto:michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn><mailto:gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com><mailto:zhiguang.liu@intel.com>
Signed-off-by: Abdul Lateef Attar <AbdulLateef.Attar@amd.com><mailto:AbdulLateef.Attar@amd.com>
---
  MdePkg/MdePkg.dec | 11 ++++++++++-
  1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 0c18e1decd..396d960dca 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -9,7 +9,7 @@
  # (C) Copyright 2016 - 2021 Hewlett Packard Enterprise Development LP<BR>
  # Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
  # Copyright (c) 2021 - 2022, Arm Limited. All rights reserved.<BR>
-# Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.<BR>
+# Copyright (C) 2023 - 2024, Advanced Micro Devices, Inc. All rights reserved.<BR>
  # Copyright (c) 2023, Ampere Computing LLC. All rights reserved.<BR>
  #
  # SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -2401,6 +2401,15 @@
    # @Prompt Time-out for a response, internal
    gEfiMdePkgTokenSpaceGuid.PcdIpmiSsifResponseRetryIntervalMicrosecond|60000|UINT32|0x00000036
  +  ## Indicates IPMI Interface Type
+  # The IPMI specification defines the following interface types: (section C1-1.1)
+  # 0 - Unknown
+  # 1 - KCS     : Keyboard Controller Style
+  # 2 - SMIC    : Server Management Interface Chip
+  # 3 - BT      : Block Transfer
+  # 4 - SSIF    : SMBus System Interface
+  gEfiMdePkgTokenSpaceGuid.PcdIpmiInterfaceType|0|UINT8|0x00000038
+
  [PcdsFixedAtBuild.AARCH64, PcdsPatchableInModule.AARCH64]
    ## GUID identifying the Rng algorithm implemented by CPU instruction.
    # @Prompt CPU Rng algorithm's GUID.






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