NVM Express Management Interface 1.0a
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Table of Contents
1 INTRODUCTION ............................................................................................................. 6
1.1 Overview ......................................................................................................................................... 6
1.2 Scope .............................................................................................................................................. 6
1.2.1 Outside of Scope .................................................................................................................................... 6
1.3 Theory of Operation ........................................................................................................................ 6
1.4 Architectural Model ......................................................................................................................... 7
1.5 Conventions .................................................................................................................................... 9
1.5.1 Definitions ............................................................................................................................................ 10
1.5.1.1 Controller or NVMe Controller .............................................................................................................. 10
1.5.1.2 Controller Management Interface or NVMe Controller Management Interface ..................................... 10
1.5.1.3 Management Controller ........................................................................................................................ 10
1.5.1.4 Management Endpoint or NVMe Management Endpoint ..................................................................... 10
1.5.1.5 VPD or Vital Product Data .................................................................................................................... 10
1.5.1.6 FRU Information Device ....................................................................................................................... 10
1.5.1.7 Command Slot...................................................................................................................................... 10
1.5.1.8 Request Message ................................................................................................................................ 10
1.5.1.9 Command Message ............................................................................................................................. 10
1.5.1.10 Control Primitive ................................................................................................................................... 10
1.5.1.11 Response Message .............................................................................................................................. 10
1.5.1.12 NVM Subsystem................................................................................................................................... 10
1.5.2 Keywords ............................................................................................................................................. 10
1.5.2.1 mandatory ............................................................................................................................................ 10
1.5.2.2 may ...................................................................................................................................................... 11
1.5.2.3 optional ................................................................................................................................................. 11
1.5.2.4 R ........................................................................................................................................................... 11
1.5.2.5 reserved ............................................................................................................................................... 11
1.5.2.6 shall ...................................................................................................................................................... 11
1.5.2.7 should ................................................................................................................................................... 11
1.6 Conventions .................................................................................................................................. 11
1.6.1 Byte, Word and Dword Relationships ................................................................................................... 11
1.7 References ................................................................................................................................... 12
2 PHYSICAL LAYER ........................................................................................................ 14
2.1 PCI Express .................................................................................................................................. 14
2.2 SMBus/I2C .................................................................................................................................... 14
2.3 Error Handling ............................................................................................................................... 16
3 MESSAGE TRANSPORT ................................................................................................. 17
3.1 MCTP Packet ................................................................................................................................ 17
3.2 MCTP Messages .......................................................................................................................... 18
3.2.1 Message Fields .................................................................................................................................... 19
3.2.1.1 Message Integrity Check ...................................................................................................................... 20
3.2.2 Packet Assembly into Messages .......................................................................................................... 22
3.3 Error Handling ............................................................................................................................... 23
4 MESSAGE PROCESSING MODEL ..................................................................................... 24
4.1 Request Messages ....................................................................................................................... 24
4.2 Response Messages .................................................................................................................... 25
4.2.1 Generic Error Response ....................................................................................................................... 27
4.2.2 Invalid Parameter Error Response ....................................................................................................... 27
4.3 Command Processing Model ....................................................................................................... 28
4.4 Control Primitives .......................................................................................................................... 30
