Management Component Transport Protocol (MCTP) PCIe …

1 1 2 3 4 5 6 7 8 9 10 11 Document Number: DSP0238 Date: 2009-12-11 Version: Management Component Transport Protocol (MCTP) PCIe VDM Transport binding specification Document Type: specification Document Status: DMTF Standard Document Language: E MCTP PCle VDM Transport binding specification DSP0238 2 DMTF Standard Version Copyright Notice 12 Copyright 2009 Distributed Management Task Force, Inc. (DMTF). All rights reserved. 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DMTF is a not-for-profit association of industry members dedicated to promoting enterprise and systems Management and interoperability.

2 Members and non-members may reproduce DMTF specifications and documents, provided that correct attribution is given. As DMTF specifications may be revised from time to time, the particular version and release date should always be noted. Implementation of certain elements of this standard or proposed standard may be subject to third party patent rights, including provisional patent rights (herein "patent rights"). DMTF makes no representations to users of the standard as to the existence of such rights, and is not responsible to recognize, disclose, or identify any or all such third party patent right, owners or claimants, nor for any incomplete or inaccurate identification or disclosure of such rights, owners or claimants.

3 DMTF shall have no liability to any party, in any manner or circumstance, under any legal theory whatsoever, for failure to recognize, disclose, or identify any such third party patent rights, or for such party s reliance on the standard or incorporation thereof in its product, protocols or testing procedures. DMTF shall have no liability to any party implementing such standard, whether such implementation is foreseeable or not, nor to any patent owner or claimant, and shall have no liability or responsibility for costs or losses incurred if a standard is withdrawn or modified after publication, and shall be indemnified and held harmless by any party implementing the standard from any and all claims of infringement by a patent owner for such implementations.

4 For information about patents held by third-parties which have notified the DMTF that, in their opinion, such patent may relate to or impact implementations of DMTF standards, visit 33 34 35 36 37 PCI-SIG, PCIe, and the PCI HOT PLUG design mark are registered trademarks or service marks of PCI-SIG. All other marks and brands are the property of their respective owners. DSP0238 MCTP PCle VDM Transport binding specification Version DMTF Standard 3 CONTENTS 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Foreword.

5 4 Introduction .. 5 1 Scope .. 7 2 Normative 7 3 Terms and 7 4 Symbols and Abbreviated 7 5 Conventions .. 8 Reserved and Unassigned Values .. 8 Byte 8 6 MCTP over PCI Express VDM 8 Packet 8 Supported 10 Physical Address Format for MCTP Control Messages .. 11 Message Routing .. 11 Bus Owner Address .. 12 Bus Address Assignment for PCIe .. 12 Host 12 Discovery Notify Message Use for 12 MCTP over PCIe Endpoint 13 MCTP Messages Timing Requirements .. 17 Annex A (informative) Notations and Conventions.

6 18 Annex B (informative) Change 19 Figures Figure 1 MCTP over PCI Express Packet Format for PCIe 9 Figure 2 Flow of Operations for Full PCIe MCTP Discovery .. 15 Figure 3 Flow of Operations for Partial Endpoint Discovery ..16 Tables Table 1 PCI Express Medium-Specific MCTP Packet Fields .. 9 Table 2 Supported 10 Table 3 Physical Address Format .. 11 Table 4 Timing Specifications for MCTP Control Messages on PCIe VDM .. 17 MCTP PCle VDM Transport binding specification DSP0238 4 DMTF Standard Version Foreword 73 74 75 76 77 The Management Component Transport Protocol (MCTP) PCIe VDM Transport binding specification (DSP0238) was prepared by the PMCI Working Group.

7 DMTF is a not-for-profit association of industry members dedicated to promoting enterprise and systems Management and interoperability. DSP0238 MCTP PCle VDM Transport binding specification Version DMTF Standard 5 Introduction 78 79 80 81 The Management Component Transport Protocol (MCTP) over PCIe VDM Transport binding defines a Transport binding for facilitating communication between platform Management subsystem components ( Management controllers, Management devices) using PCIe Vendor Defined Messages (VDMs). The MCTP Base specification describes the Protocol and commands used for communication within and initialization of an MCTP network.

8 The MCTP over PCIe VDM Transport binding definition in this specification includes a packet format, physical address format, message routing, and discovery mechanisms for MCTP over PCIe VDM communications. 82 83 84 85 86 87 DSP0238 MCTP PCle VDM Transport binding specification Version DMTF Standard 7 Management Component Transport Protocol (MCTP) PCIe VDM Transport binding specification 88 89 91 92 94 95 96 97 1 Scope 90 This document provides the specifications for the Management Component Transport Protocol (MCTP) Transport binding for PCI Express using PCIe Vendor Defined Messages (VDMs).

9 2 Normative References 93 The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DMTF DSP0236, Management Component Transport Protocol (MCTP) Base specification , 98 99 DMTF DSP0239, Management Component Transport Protocol (MCTP) IDs and Codes , 100 101 ISO/IEC Directives, Part 2, Rules for the structure and drafting of International Standards, 102 103 PCI-SIG, PCI Express Base specification , , March 28, 2005, 104 105 PCI-SIG, PCI Express Base specification , , December 20, 2006, 106 3 Terms and Definitions 107 Refer to DSP0236 for terms and definitions that are used across the MCTP specifications.

10 For the purposes of this document, the following additional terms and definitions apply. 108 109 111 112 113 114 110 MCTP PCIe Endpoint a PCIe endpoint on which MCTP PCIe VDM communication is supported 4 Symbols and Abbreviated Terms 115 Refer to DSP0236 for symbols and abbreviated terms that are used across the MCTP specifications. The following symbols and abbreviations are used in this document. 116 117 119 120 118 PCle PCI Express MCTP PCle VDM Transport binding specification DSP0238 8 DMTF Standard Version 121 VDM 122 123 125 127 128 129 130 132 133 135 136 138 139 140 141 Vendor Defined Message 5 Conventions 124 The conventions described in the following clauses apply to this specification .