IPMI V2.0：智能平台管理接口的第二代规范与修订历史

IPMI

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IPMI（Intelligent Platform Management Interface，智能平台管理接口）标准V2.0是针对服务器、数据中心和其他计算设备的一种开放性硬件管理标准。它于2004年2月首次发布，作为第一代IPMI标准的升级版本，旨在提供更高效、安全和功能丰富的远程管理功能。V2.0的主要改进在于增强了系统的可扩展性和互操作性，支持了更高级别的管理和监控功能，如硬件监控、电源控制、环境监控以及远程诊断等。在V2.0的早期版本中，例如1.0到1.5，主要集中在修正错误和添加必要的功能增强上，比如1.5版的多次修订包含了文档的更新和errata（错误修正），以确保规范的准确性和一致性。到了V2.0 1.0版本，它标志着一个全新的起点，引入了许多关键特性，如命令集的扩展、安全性增强（如SSH和SSL支持）、网络管理功能的提升，以及对不同厂商设备间的兼容性优化。随着版本的迭代，如1.0到1.1的修订，着重于整合之前的错误修正，并在后续版本中不断补充新的修正文档，以解决实际应用中的问题。例如，9/26/03的修订中解决了Get Chassis Status命令中的缺失选项问题，反映了标准制定者对细节的关注和持续改进的决心。 IPMI V2.0标准的发布不仅仅是技术上的更新，它代表了一种行业标准的进步，使得IT管理人员能够更方便地远程监控和管理他们的基础设施，提高了运维效率，降低了维护成本。同时，该标准对于制造商来说也意味着更大的灵活性，可以按照统一的规范开发和生产兼容的硬件产品，从而促进整个行业的标准化和协作。 IPMI V2.0是一个里程碑式的标准，它定义了现代数据中心管理的基础架构，通过不断的修订和更新，确保了其在现代信息技术环境中的持久价值。了解并遵循这个标准，对于IT专业人士在设计、部署和管理复杂的IT基础设施时至关重要。

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Intelligent Platform Management Interface Specification

41.5 Use of Codes in Event Messages ............................................................................................................. 529

42. Sensor and Event Code Tables ...................................................................................................... 532

42.1 Event/Reading Type Codes ..................................................................................................................... 532

42.2 Sensor Type Codes and Data ................................................................................................................... 535

43. Sensor Data Record Formats ......................................................................................................... 550

43.1 SDR Type 01h, Full Sensor Record ......................................................................................................... 551

43.2 SDR Type 02h, Compact Sensor Record ................................................................................................. 558

43.3 SDR Type 03h, Event-Only Record ........................................................................................................ 564

43.4 SDR Type 08h - Entity Association Record ............................................................................................ 566

43.5 SDR Type 09h - Device-relative Entity Association Record ................................................................... 567

43.6 SDR Type 0Ah:0Fh - Reserved Records ................................................................................................. 569

43.7 SDR Type 10h - Generic Device Locator Record ................................................................................... 570

43.8 SDR Type 11h - FRU Device Locator Record ........................................................................................ 571

43.9 SDR Type 12h - Management Controller Device Locator Record .......................................................... 573

43.10 SDR Type 13h - Management Controller Confirmation Record ............................................................. 575

43.11 SDR Type 14h - BMC Message Channel Info Record ............................................................................ 576

43.12 SDR Type C0h - OEM Record ................................................................................................................ 578

43.13 Device Type Codes .................................................................................................................................. 579

43.14 Entity IDs ................................................................................................................................................. 580

43.15 Type/Length Byte Format ........................................................................................................................ 581

43.16 6-bit ASCII Packing Example ................................................................................................................. 583

43.17 Sensor Unit Type Codes .......................................................................................................................... 584

44. Examples .......................................................................................................................................... 586

44.1 Processor Sensor with Sensor-specific States & Event Generation ......................................................... 586

44.2 Processor Sensor with Generic States & Event Generation ..................................................................... 588

Appendix A - Previous Sequence Number Tracking ........................................................................... 590

Appendix B - Example PEF Mask Compare Algorithm ....................................................................... 592

Appendix C1 - Locating IPMI System Interfaces via SM BIOS Tables ............................................... 594

C1-1 IPMI Device Information - BMC Interface ............................................................................................. 595

C1-1.1 Interface Type ...................................................................................................................................... 595

C1-1.2 IPMI Specification Revision Field ....................................................................................................... 595

C1-1.3 I

C Slave Address Field ....................................................................................................................... 595

C1-1.4 NV Storage Device Address Field ....................................................................................................... 596

C1-1.5 Base Address Field ............................................................................................................................... 596

C1-1.6 Base Address Modifier Field ................................................................................................................ 596

C1-1.7 System Interface Register Alignment ................................................................................................... 596

C1-1.7.1 Byte-spaced I/O Address Examples ....................................................................................................... 596

C1-1.7.2 32-bit Spaced I/O Address Examples .................................................................................................... 596

C1-1.7.3 Memory-mapped Base Address ............................................................................................................. 597

C1-1.7.4 Interrupt Info Field ................................................................................................................................. 597

C1-1.8 Interrupt Number Field ........................................................................................................................ 597

Appendix C2 - Locating IPMI System Interfaces on PCI ..................................................................... 598

Appendix C3 - Locating IPMI System Interfaces with ACPI ................................................................ 600

C3-1 SPMI Description Table and ACPI Control Methods.............................................................................. 600

C3-2 Locating IPMI System Interfaces in ACPI Name Space ......................................................................... 602

C3-3 Example IPMI Definition ASL Code ...................................................................................................... 604

Example 1: SMIC Interface in I/O Space .......................................................................................................... 604

Example 2: KCS Interface in 64-bit Address Space .......................................................................................... 605

Example 3: SMIC Interface in I/O Space .......................................................................................................... 606

Example 4: SSIF Interface ................................................................................................................................. 606

Appendix D - Determining Message Size Requirements .................................................................... 608

Intelligent Platform Management Interface Specification

List of Figures

Figure 1-1, IPMI and the Management Software Stack............................................................................................... 38

Figure 1-2, IPMI Block Diagram ................................................................................................................................. 39

Figure 2-1, Intelligent Platform Management Logical Devices ................................................................................... 56

Figure 6-1, Session Activation .................................................................................................................................... 84

Figure 6-2, LAN to IPMB Bridged Request Example ................................................................................................. 92

Figure 7-1, IPMB Request sent using Send Message Command ................................................................................. 97

Figure 7-2, Send Message Command Response .......................................................................................................... 97

Figure 7-3, Response for Set Event Receiver in Receive Message Queue .................................................................. 98

Figure 7-4, Get Message Command Response ............................................................................................................ 98

Figure 9-1, KCS Interface/BMC Request Message Format ...................................................................................... 104

Figure 9-2, KCS Interface/BMC Response Message Format .................................................................................... 105

Figure 9-3, KCS Interface Event Request Message Format ...................................................................................... 105

Figure 9-4, KCS Interface Event Response Message Format .................................................................................... 105

Figure 9-5, KCS Interface Registers .......................................................................................................................... 106

Figure 9-6, KCS Interface SMS to BMC Write Transfer Flow Chart ....................................................................... 112

Figure 9-7, KCS Interface BMC to SMS Read Transfer Flow Chart ........................................................................ 113

Figure 9-8, Aborting KCS Transactions in-progress and/or Retrieving KCS Error Status........................................ 114

Figure 10-1, SMIC/BMC Interface Registers ............................................................................................................ 119

Figure 10-2, SMIC/BMC Request Message Format .................................................................................................. 127

Figure 10-3, SMIC/BMC Response Message Format ............................................................................................... 128

Figure 10-4, SMIC Event Request Message Format ................................................................................................. 128

Figure 10-5, SMIC Event Response Message Format ............................................................................................... 128

Figure 11-1, BT Interface/BMC Request Message Format ....................................................................................... 130

Figure 11-2, BT Interface/BMC Response Message Format ..................................................................................... 131

Figure 11-3, BT Interface Event Request Message Format ....................................................................................... 132

Figure 11-4, BT Interface Event Response Message Format .................................................................................... 132

Figure 11-5, BT_CTRL Register format ................................................................................................................... 133

Figure 11-6, BT_INTMASK Register format ........................................................................................................... 136

Figure 13-1, Embedded LAN Controller Implementation ......................................................................................... 150

Figure 13-2, PCI Management Bus Implementation ................................................................................................. 151

Figure 13-3, IPMI LAN Packet Layering .................................................................................................................. 158

Figure 13-4, IPMI LAN Message Formats ................................................................................................................ 163

Figure 13-5, IPMI v1.5 LAN Session Startup ........................................................................................................... 172

Figure 14-1, Serial Port Sharing Logical Diagram .................................................................................................... 196

Figure 14-2, Basic Mode Message Fields .................................................................................................................. 209

Figure 14-3, PPP Frame Format ................................................................................................................................ 211

Figure 14-4, Configure-Request, -Ack, -Nak, -Reject Packet Format ....................................................................... 212

Figure 14-5, IPMI Message in PPP Frame Format .................................................................................................... 215

Figure 14-6, IP Frame with Field Compression......................................................................................................... 216

Figure 14-7, Terminal Mode Request to BMC .......................................................................................................... 222

Figure 14-8, Terminal Mode Response from BMC ................................................................................................... 222

Figure 14-9, Terminal Mode Request to SMS ........................................................................................................... 224

Figure 14-10, Terminal Mode Response from SMS .................................................................................................. 224

Figure 14-11, Send Message Command for Bridged Request ................................................................................... 224

Figure 14-12, Response to Send Message Command for Bridged Request ............................................................... 224

Figure 14-13, Bridged Response to Remote Console ................................................................................................ 224

Figure 15-1, SOL with Serial Port Sharing ................................................................................................................ 235

Figure 17-1, Alert Processing Example ..................................................................................................................... 261

Figure 17-2, Event Filter, Alert Policy, and Alert Destination, & String Relationships ............................................ 262

Intelligent Platform Management Interface Specification

List of Tables

Table 1-1, Glossary...................................................................................................................................................... 32

Table 3-1, Required BMC Functions ........................................................................................................................... 60

Table 5-1, Network Function Codes ............................................................................................................................ 67

Table 5-2, Completion Codes ...................................................................................................................................... 70

Table 5-3, Sensor Owner ID and Sensor Number Field Definitions ........................................................................... 72

Table 5-4, System Software IDs .................................................................................................................................. 73

Table 6-1, Channel Number Assignments ................................................................................................................... 75

Table 6-2, Channel Protocol Type Numbers ............................................................................................................... 75

Table 6-3, Channel Medium Type Numbers ............................................................................................................... 76

Table 6-4, Channel Access Modes .............................................................................................................................. 77

Table 6-5, Channel Privilege Levels............................................................................................................................ 78

Table 6-6, Session-less , Single-session and Multi-session Characteristics ................................................................ 83

Table 6-7, Default Session Inactivity Timeout Intervals ............................................................................................. 87

Table 6-8, Message Bridging Mechanism by Source and Destination ........................................................................ 91

Table 6-9, IPMI Message and IPMB / Private Bus Transaction Size Requirements ................................................... 94

Table 7-1, BMC IPMB LUNs ..................................................................................................................................... 96

Table 8-1, System Interface Request For Delivering Remote IPMB Request via ICMB .......................................... 101

Table 8-2, Send Message Response ........................................................................................................................... 101

Table 8-2a, Get Message Response Data for Remote IPMB Request Delivered via ICMB ...................................... 101

Table 8-3, IPMB Request For Delivering Remote IPMB Request via ICMB ........................................................... 102

Table 8-4, Send Message Response ........................................................................................................................... 102

Table 8-5, IPMB Response For Remote IPMB Request Delivered via ICMB .......................................................... 102

Table 9-1, KCS Interface Status Register Bits........................................................................................................... 107

Table 9-2, KCS Interface State Bits........................................................................................................................... 107

Table 9-3, KCS Interface Control Codes ................................................................................................................... 108

Table 9-4, KCS Interface Status Codes ..................................................................................................................... 108

Table 10-1, SMIC Flags Register Bits ....................................................................................................................... 120

Table 10-2, SMS Transfer Stream control codes ....................................................................................................... 125

Table 10-3, SMS Transfer Stream Status Codes ....................................................................................................... 126

Table 11-1, BT Interface Registers ............................................................................................................................ 132

Table 11-2, BT_CTRL Register Bit Definitions ........................................................................................................ 133

Table 11-3, BT_INTMASK Register Bit Definitions ................................................................................................ 136

Table 11-4, BT Interface Write Transfer ................................................................................................................... 137

Table 11-5, BT Interface Read Transfer .................................................................................................................... 138

Table 12-1, BMC Single-part Write .......................................................................................................................... 141

Table 12-2, BMC Multi-part Write Start ................................................................................................................... 142

Table 12-3, BMC Multi-part Write Middle ............................................................................................................... 142

Table 12-4, BMC Multi-part Write End .................................................................................................................... 142

Table 12-5, BMC Single-part Read ........................................................................................................................... 142

Table 12-6, BMC Multi-part Read Start .................................................................................................................... 143

Table 12-7, BMC Multi-part Read Middle ................................................................................................................ 143

Table 12-8, BMC Multi-part Read Retry ................................................................................................................... 143

Table 12-9, BMC Multi-part Read End ..................................................................................................................... 143

Table 12-10, Summary of SMBus Commands for SSIF ........................................................................................... 147

Table 12-11, SSIF Commands ................................................................................................................................... 147

Table 12-12, SSIF Timing Specifications .................................................................................................................. 147

Table 13-1, RMCP Port Numbers ............................................................................................................................. 152

Table 13-2, RMCP Message Format ......................................................................................................................... 153

Table 13-3, Message Type Determination Under RMCP .......................................................................................... 153

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IPMI V2.0：智能平台管理接口的第二代规范与修订历史

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