Re: [edk2-devel] [PATCH v4] MdePkg/Include: Add IPMI KCS definitions

["Chang, Abner" <abner.chang@amd.com>]

[AMD Official Use Only - General]



> -----Original Message-----
> From: Tinh Nguyen <tinhnguyen@amperemail.onmicrosoft.com>
> Sent: Friday, March 24, 2023 11:43 AM
> To: devel@edk2.groups.io; Chang, Abner <Abner.Chang@amd.com>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Zhiguang Liu <zhiguang.liu@intel.com>; Nickle
> Wang <nicklew@nvidia.com>; Igor Kulchytskyy <igork@ami.com>; Isaac
> Oram <isaac.w.oram@intel.com>; Attar, AbdulLateef (Abdul Lateef)
> <AbdulLateef.Attar@amd.com>
> Subject: Re: [edk2-devel] [PATCH v4] MdePkg/Include: Add IPMI KCS
> definitions
> 
> Caution: This message originated from an External Source. Use proper
> caution when opening attachments, clicking links, or responding.
> 
> 
> On 24/03/2023 10:15, Chang, Abner via groups.io wrote:
> > From: Abner Chang <abner.chang@amd.com>
> >
> > BZ #4354
> > This change adds definitions for IPMI KCS.
> >
> > Spec ref:
> >
> https://www.intel.com/content/www/us/en/products/docs/servers/ipmi/i
> pm
> > i-second-gen-interface-spec-v2-rev1-1.html
> >
> > Signed-off-by: Abner Chang <abner.chang@amd.com>
> > Cc: Michael D Kinney <michael.d.kinney@intel.com>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> > Cc: Nickle Wang <nicklew@nvidia.com>
> > Cc: Igor Kulchytskyy <igork@ami.com>
> > Cc: Isaac Oram <isaac.w.oram@intel.com>
> > Cc: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
> > Acked-by: Isaac Oram <isaac.w.oram@intel.com>
> > ---
> >   MdePkg/MdePkg.dec                         |  6 ++
> >   MdePkg/Include/IndustryStandard/IpmiKcs.h | 76
> +++++++++++++++++++++++
> >   2 files changed, 82 insertions(+)
> >   create mode 100644 MdePkg/Include/IndustryStandard/IpmiKcs.h
> >
> > diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index
> > 2d643bede1d..5cf04bc0cb6 100644
> > --- a/MdePkg/MdePkg.dec
> > +++ b/MdePkg/MdePkg.dec
> > @@ -9,6 +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>
> >   #
> >   # SPDX-License-Identifier: BSD-2-Clause-Patent
> >   #
> > @@ -2342,6 +2343,11 @@
> >     # @Prompt Memory Address of GuidedExtractHandler Table.
> >
> >
> gEfiMdePkgTokenSpaceGuid.PcdGuidedExtractHandlerTableAddress|0x1000
> 000
> > |UINT64|0x30001015
> >
> > +  ## This value is the IPMI KCS Interface I/O base address used to transmit
> IPMI commands.
> > +  #  The value of 0xca2 is the default I/O base address defined in IPMI
> specification.
> > +  # @Prompt IPMI KCS Interface I/O Base Address
> > +
> > +
> gEfiMdePkgTokenSpaceGuid.PcdIpmiKcsIoBaseAddress|0xca2|UINT16|0x00
> 00
> > + 0031
> > +
> >   [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
> >     ## This value is used to set the base address of PCI express hierarchy.
> >     # @Prompt PCI Express Base Address.
> > diff --git a/MdePkg/Include/IndustryStandard/IpmiKcs.h
> > b/MdePkg/Include/IndustryStandard/IpmiKcs.h
> > new file mode 100644
> > index 00000000000..1e1be787617
> > --- /dev/null
> > +++ b/MdePkg/Include/IndustryStandard/IpmiKcs.h
> > @@ -0,0 +1,76 @@
> > +/** @file
> > +  IPMI KCS Register Definitions
> > +
> > +  Copyright (C) 2023 Advanced Micro Devices, Inc. All rights
> > + reserved.<BR>
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +  @par Revision Reference:
> > +  IPMI Specification
> > +  Version 2.0, Rev. 1.1
> > +
> >
> +https://www.intel.com/content/www/us/en/products/docs/servers/ipmi/
> ip
> > +mi-second-gen-interface-spec-v2-rev1-1.html
> > +**/
> > +
> > +#ifndef IPMI_KCS_H_
> > +#define IPMI_KCS_H_
> > +
> > +#define IPMI_KCS_STATUS_REGISTER_OFFSET    1
> > +#define IPMI_KCS_COMMAND_REGISTER_OFFSET   1
> > +#define IPMI_KCS_DATA_OUT_REGISTER_OFFSET  0
> > +#define IPMI_KCS_DATA_IN_REGISTER_OFFSET   0
> > +
> > +///
> > +/// IPMI KCS Interface Status Bits
> > +///
> > +#define IPMI_KCS_OBF           BIT0
> > +#define IPMI_KCS_IBF           BIT1
> > +#define IPMI_KCS_SMS_ATN       BIT2
> > +#define IPMI_KCS_COMMAND_DATA  BIT3
> > +#define IPMI_KCS_OEM1          BIT4
> > +#define IPMI_KCS_OEM2          BIT5
> > +#define IPMI_KCS_S0            BIT6
> > +#define IPMI_KCS_S1            BIT7
> > +
> > +///
> > +/// IPMI KCS Interface Control Codes
> > +///
> > +#define IPMI_KCS_CONTROL_CODE_GET_STATUS_ABORT  0x60
> > +#define IPMI_KCS_CONTROL_CODE_WRITE_START       0x61
> > +#define IPMI_KCS_CONTROL_CODE_WRITE_END         0x62
> > +#define IPMI_KCS_CONTROL_CODE_READ              0x68
> > +
> > +///
> > +/// Status Codes
> > +///
> > +#define IPMI_KCS_STATUS_NO_ERROR      0x00
> > +#define IPMI_KCS_STATUS_ABORT         0x01
> > +#define IPMI_KCS_STATUS_ILLEGAL       0x02
> > +#define IPMI_KCS_STATUS_LENGTH_ERROR  0x06
> > +#define IPMI_KCS_STATUS_UNSPECIFIED   0xFF
> > +
> > +///
> > +/// KCS Interface State Bit
> > +///
> > +typedef enum {
> > +  IPMI_KCS_IDLE_STATE = 0,
> > +  IPMI_KCS_READ_STATE,
> > +  IPMI_KCS_WRITE_STATE,
> > +  IPMI_KCS_ERROR_STATE
> > +} IPMI_KCS_STATE;
> > +
> > +///
> > +/// IPMI KCS Interface Request Format /// typedef struct {
> > +  UINT8    NetFunc;
> > +  UINT8    Command;
> > +  UINT8    Data[];
> > +} IPMI_KCS_RESQUEST_HEADER;
> I mean, there's a typo here, IPMI_KCS_REQUEST_HEADER
Will fix it. Thanks.

Abner


> > +
> > +///
> > +/// IPMI KCS Interface Response Format /// typedef struct {
> > +  UINT8    NetFunc;
> > +  UINT8    Command;
> > +} IPMI_KCS_RESPONSE_HEADER;
> > +#endif