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

Chang, Abner via groups.io abner.chang=amd.com at groups.io
Tue Mar 7 09:31:47 UTC 2023


[AMD Official Use Only - General]

Hi Tinh,
That depends on if AMD platform enables SSIF as host-bmc transport interface, otherwise I may not work on that because I have no platform to test.
Thanks
Abner

> -----Original Message-----
> From: Tinh Nguyen <tinhnguyen at amperemail.onmicrosoft.com>
> Sent: Tuesday, March 7, 2023 3:51 PM
> To: devel at edk2.groups.io; Chang, Abner <Abner.Chang at amd.com>
> Subject: Re: [edk2-devel] [PATCH] MdePkg/Include: Add IPMI KCS
> definitions
> 
> Caution: This message originated from an External Source. Use proper
> caution when opening attachments, clicking links, or responding.
> 
> 
> Hi Abner,
> 
> Any plan to support SMBUS system interface (ssif)?
> 
> - Tinh
> 
> On 03/03/2023 09:31, Chang, Abner via groups.io wrote:
> > From: Abner Chang <abner.chang at amd.com>
> >
> > BZ #4354
> > This change adds definitions for IPMI KCS.
> >
> > Signed-off-by: Abner Chang <abner.chang at amd.com>
> > Cc: Michael D Kinney <michael.d.kinney at intel.com>
> > Cc: Liming Gao <gaoliming at byosoft.com.cn>
> > Cc: Zhiguang Liu <zhiguang.liu at intel.com>
> > Cc: Nickle Wang <nicklew at nvidia.com>
> > Cc: Igor Kulchytskyy <igork at ami.com>
> > Cc: Isaac Oram <isaac.w.oram at intel.com>
> > Cc: Abdul Lateef Attar <AbdulLateef.Attar at amd.com>
> > ---
> >   MdePkg/MdePkg.dec                         |  5 ++
> >   MdePkg/Include/IndustryStandard/IpmiKcs.h | 72
> +++++++++++++++++++++++
> >   2 files changed, 77 insertions(+)
> >   create mode 100644 MdePkg/Include/IndustryStandard/IpmiKcs.h
> >
> > diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index
> > 3d08f20d15b..0ed033983bf 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
> >   #
> > @@ -2332,6 +2333,10 @@
> >     # @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.
> > +  # @Prompt IPMI KCS Interface I/O Base Address
> > +
> > +
> gEfiMdePkgTokenSpaceGuid.PcdIpmiKcsBaseAddress|0xca2|UINT16|0x0000
> 00
> > + 31
> > +
> >   [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..2a51698b126
> > --- /dev/null
> > +++ b/MdePkg/Include/IndustryStandard/IpmiKcs.h
> > @@ -0,0 +1,72 @@
> > +/** @file
> > +  IPMI KCS Register Definitions
> > +
> > +  Copyright (C) 2023 Advanced Micro Devices, Inc. All rights
> > +reserved.<BR>
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent **/
> > +
> > +#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[0];
> > +} IPMI_KCS_RESQUEST_HEADER;
> > +
> > +///
> > +/// IPMI KCS Interface Response Format /// typedef struct {
> > +  UINT8    NetFunc;
> > +  UINT8    Command;
> > +  UINT8    CompletionCode;
> > +} IPMI_KCS_RESPONSE_HEADER;
> > +#endif


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