| Tom Joseph | e123c46 | 2021-05-05 03:36:01 -0700 | [diff] [blame] | 1 | description: > |
| 2 | Describe an MCTP endpoint. It is an MCTP communication terminus. An MCTP |
| 3 | endpoint is a terminus or origin of MCTP packets or messages. The combined |
| 4 | functionality within a physical device that communicates using the MCTP |
| 5 | transport protocol and handles MCTP control commands. This includes |
| 6 | MCTP-capable management controllers and managed devices. |
| 7 | |
| 8 | properties: |
| 9 | |
| 10 | - name: NetworkId |
| 11 | type: size |
| 12 | description: > |
| 13 | A locally defined identifier to distinguish each independent MCTP |
| 14 | network within a platform. The network IDs are used by the MCTP stack |
| 15 | to index separate MCTP Networks. This along with EID is used by upper |
| 16 | layer protocols to address the destination endpoint. |
| 17 | |
| 18 | - name: EID |
| 19 | type: size |
| 20 | description: > |
| 21 | The logical address used to route MCTP messages to a specific MCTP |
| 22 | endpoint. A numeric handle (logical address) that uniquely identifies |
| 23 | a particular MCTP endpoint within a system for MCTP communication and |
| 24 | message routing purposes. Endpoint IDs are unique among MCTP |
| 25 | endpoints that comprise an MCTP communication network within a |
| 26 | system. MCTP EIDs are only unique within a particular MCTP network. |
| 27 | That is, they can be duplicated or overlap from one MCTP network to |
| 28 | the next. This is also referred to as "endpoint ID" and abbreviated |
| 29 | as "EID". |
| 30 | |
| 31 | - name: SupportedMessageTypes |
| 32 | type: array[byte] |
| 33 | description: > |
| 34 | List of MCTP message types supported by the MCTP endpoint. MCTP |
| 35 | message type is an enumeration that identifies the type of the |
| 36 | communication payload in an MCTP message. The well defined message |
| 37 | types are MCTP Control(0x00), PLDM(0x01), NC-SI over MCTP(0x02), |
| 38 | Ethernet over MCTP(0x03), NVM Express Management Messages over |
| 39 | MCTP(0x04) and SPDM over MCTP(0x05). There are ranges for vendor |
| 40 | defined message types. All the message types are specified in the |
| 41 | DSP0239 specification. A device that supports a given message type |
| 42 | may not support that message type equally across all buses that |
| 43 | connect to the device. |