oem/ibm/system-power-mode.md

1 # System Power Mode and Idle Power Saver Support
12 the system power mode and idle power save modes. We need the ability to set and
13 query the system power mode and also the ability to control and set idle power
20 thermal monitoring and control. When a system is powered on, the OCCs will go to
22 send a mode change and idle power saver (IPS) settings to the OCC. It will also
23 need to send the commands if the user changes the mode or idle power save
30 monitoring the systems thermal sensors. For certain error conditions it may be
34 runtime, the BMC will need to send the mode and the idle power saver settings to
42 - Static
43 - Power Saver
44 - Maximum Performance
46 A proposal for adding Idle Power Saving parameters was submitted to the Redfish
49 Customer Settable Idle Power Save Parameters:
51 - Enabled / Disabled
52 - Enter Delay Time (in seconds)
53 - Enter Utilization threshold (percentage)
54 - Exit Delay Time (in seconds)
55 - Exit Utilization threshold (percentage)
61 The new code would be part of the openpower-occ-control repository. New code
64 - OCC poll response data showing a new state of Active (0x03)
65 - OCC Active sensor is enabled (may be covered in above bullet)
66 - Customer updates system power mode user interface or Redfish interface
67 - Customer updates idle power save setting or Redfish interface
74 the OCC and a SET_CONFIG_DATA (0x21) command with the Idle Power Saver
76 https://github.com/open-power/docs/blob/master/occ/OCC_P9_FW_Interfaces.pdf
78 Default values will also be defined for Power Mode and Idle Power Saver
84 The customer requested PowerMode and Idle Power Saver parameters will be stored
85 as D-Bus object in the phosphor-dbus-interfaces repository:
91 - Using hardcoded power mode and Idle Power Save parameters (no flexibility to
98 Redfish. API impact - Add Redfish support for new parameters as well as new user
99 interface to allow customer to set power mode and idle power saver settings
100 Security impact - update of these parameters should be able to be restricted to
102 Documentation impact - need to document new parameters Performance impact -
106 Developer impact - code to be written by OCC team with guidance from OpenBMC
107 power management team Upgradability impact - None
111 This will be able to be tested by directly updating the power mode and idle