Rainier:Power cap value is getting set incorrectly via IPMI when large value is provided

[yadlapati]

Description:

Power cap value is getting set incorrectly via IPMI when large value is provided

System details:

BMC FW:fw1060.10-3-1060.2426.20240701b (NL1060_061)

Steps to re- create

======================

1. Reboot BMC
2. Perform GET operation via Redfish

vidya.kalasappanavar@VidyaKalasappanavars-MacBook-Pro ~ % curl -k -H "X-Auth-Token: $bmc_token" -H "Content-Type: application/octet-stream" -X GET https://${bmc_ip}/redfish/v1/Chassis/chassis/EnvironmentMetrics

{

  "@odata.id": "/redfish/v1/Chassis/chassis/EnvironmentMetrics",

  "@odata.type": "#EnvironmentMetrics.v1_3_0.EnvironmentMetrics",

      {

      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/fan1_0",

      "DeviceName": "Chassis Fan #fan1_0",

      "SpeedRPM": 11980.0

    },

    {

      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/fan0_1",

      "DeviceName": "Chassis Fan #fan0_1",

      "SpeedRPM": 17688.0

    },

    {

      "DataSourceUri": "/redfish/v1/Chassis/chassis/Sensors/fan0_0",

      "DeviceName": "Chassis Fan #fan0_0",

      "SpeedRPM": 12019.0

    }

  ],

  ],

  "FanSpeedsPercent@odata.count": 12,

  "Id": "EnvironmentMetrics",

  "Name": "Chassis Environment Metrics",

  "PowerLimitWatts": {

    "AllowableMax": 4294967295,

    "AllowableMin": 0,

    "ControlMode": "Automatic",

    "SetPoint": 1928

  }

}%

3. Trying to set the power cap value "4294967111" via IPMI .And get command to check the power cap value.

bash-4.4$ ipmitool -I lanplus -C 17 -N 3 -p 623 -U ipmi_admin -P 0penBmc0 -H rain57bmc.aus.stglabs.ibm.com dcmi power set_limit limit 4294967111

    Current Limit State: Power Limit Active

    Exception actions:   Hard Power Off & Log Event to SEL

    Power Limit:         65351 Watts

    Correction time:     0 milliseconds

    Sampling period:     0 seconds

bash-4.4$ ipmitool -I lanplus -C 17 -N 3 -p 623 -U ipmi_admin -P 0penBmc0 -H rain57bmc.aus.stglabs.ibm.com dcmi power get_limit

    Current Limit State: Power Limit Active

    Exception actions:   Hard Power Off & Log Event to SEL

    Power Limit:         65351 Watts

    Correction time:     0 milliseconds

    Sampling period:     0 seconds

Actual behaviour: Unable to set the near to maximum power cap value

Expected Behaviour: Need to set the power cap value via IPMI.