Retrieving Data from BMC Via IPMB


The BMC has 2 IPMB modes. It can be used as a requester or responder.

  • Requester Mode
    When used as a requester, the BMC sends IPMB request messages to the BlueField via SMBus 0. The BlueField then processes the request and sends a message back to the BMC.

  • Responder Mode
    When used as a responder, the BMC receives IPMB request messages from the BlueField on SMBus 0. It then processes the message and sends a response back to the BlueField.

Both modes are enabled automatically at boot time.

For more information on how to use IPMI, please refer to the IPMI 2.0 standard.

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