BlueField Arm State
This section outlines methods for monitoring the state of NVIDIA® BlueField® Arm using either Redfish or IPMI.
The BMC polls the host status from the
NIC subsystem on BlueField
using the NC-SI interface approximately every 30 seconds. Due to this implementation, some stages of the Arm boot process may not be captured. The expected OemLastState values to indicate boot completion for the different modes are as follows:
OsIsRunning– for DPU modeUEFI– for NIC mode
curl -k -u root:'<password>' -H "Content-Type: application/json" -X GET https://<bmc_ip>/redfish/v1/Systems/Bluefield
The BlueField Arm state is represented by the OemLastState field under BootProgress.
Example output:
...
"BootProgress": {
...
"OemLastState": "OsIsRunning"
}
...
The possible values for OemLastState are:
BootRomBL2BL31UEFIOsStartingOsIsRunningLowPowerStandbyFirmwareUpdateInProgressOsCrashDumpInProgressOsCrashDumpIsCompleteFWFaultCrashDumpInProgressFWFaultCrashDumpIsCompleteInvalid
To get the BlueField
Arm state with IPMI, refer to the 0xA3 command under "IPMItool NIC Subsystem Management".