Reset Control

Issue the following command from the BMC to get the power status of the DPU:

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sudo curl -k -u root:'<password>' -H 'Content-Type: application/json' -X GET https://<bmc_ip>/redfish/v1/Systems/Bluefield/

Example output:

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{ … "PowerRestorePolicy": "AlwaysOn", "PowerState": "On", … }

Hard Reset of BlueField DPU (Arm Cores and NIC Subsystem)

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curl -k -u root:'<password>' -H "Content-Type: application/json" -X POST https://<bmc_ip>/redfish/v1/Systems/Bluefield/Actions/ComputerSystem.Reset -d '{"ResetType" : "PowerCycle"}'

Example output:

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{ "@Message.ExtendedInfo": [ { "@odata.type": "#Message.v1_1_1.Message", "Message": "The request completed successfully.", "MessageArgs": [], "MessageId": "Base.1.15.0.Success", "MessageSeverity": "OK", "Resolution": "None" } ] }


Hard Reset of BlueField Arm Cores

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curl -k -u root:'<password>' -H "Content-Type: application/json" -X POST https:/<bmc_ip>/redfish/v1/Managers/Bluefield_BMC/Actions/Manager.Reset -d '{"ResetType" : "ForceRestart"}'

Example output:

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{ "@Message.ExtendedInfo": [ { "@odata.type": "#Message.v1_1_1.Message", "Message": "The request completed successfully.", "MessageArgs": [], "MessageId": "Base.1.15.0.Success", "MessageSeverity": "OK", "Resolution": "None" } ] }


BMC supports reset control of NVIDIA® BlueField® through the GPIOs connected to the BMC.

Issue the following command from the BMC to get the power status of the DPU:

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ipmitool chassis power status

To perform a reset of the DPU, use the following commands:

Description

Command

Hard reset of BlueField DPU (Arm cores and NIC)

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ipmitool chassis power cycle

Hard reset of BlueField Arm cores

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ipmitool chassis power reset

Warning

Hard reset of the BlueField DPU is allowed only when the host asserts:

  • PERST signal on BlueField-2

  • All_STANDBY signal on BlueField-3

OEM command 0xA1 is defined for additional non-standard reset controls of BlueField from BMC under the OEM NetFn group 0x30.

NVIDIA OEM command to reset BlueField DPU:

Request

Response

Reset Option

  • 0x32 – NetFun

  • 0xA1 – command

  • 0x00 – Req_data1 (reset option)

Completion code:

  • 0x00 – success

  • <ipmi-error-code> – failure

  • 0x02 – soft reset of BlueField Arm cores

  • 0x03 – reset on-board 3-port switch

© Copyright 2023, NVIDIA. Last updated on Dec 28, 2023.