38 lines
1.4 KiB
Text
38 lines
1.4 KiB
Text
|
Kernel driver ibmaem
|
||
|
|
======================
|
||
|
|
|
||
|
|
Supported systems:
|
||
|
|
* Any recent IBM System X server with Active Energy Manager support.
|
||
|
|
This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,
|
||
|
|
x3950 M2, and certain HS2x/LS2x/QS2x blades. The IPMI host interface
|
||
|
|
driver ("ipmi-si") needs to be loaded for this driver to do anything.
|
||
|
|
Prefix: 'ibmaem'
|
||
|
|
Datasheet: Not available
|
||
|
|
|
||
|
|
Author: Darrick J. Wong
|
||
|
|
|
||
|
|
Description
|
||
|
|
-----------
|
||
|
|
|
||
|
|
This driver implements sensor reading support for the energy and power
|
||
|
|
meters available on various IBM System X hardware through the BMC. All
|
||
|
|
sensor banks will be exported as platform devices; this driver can talk
|
||
|
|
to both v1 and v2 interfaces. This driver is completely separate from the
|
||
|
|
older ibmpex driver.
|
||
|
|
|
||
|
|
The v1 AEM interface has a simple set of features to monitor energy use.
|
||
|
|
There is a register that displays an estimate of raw energy consumption
|
||
|
|
since the last BMC reset, and a power sensor that returns average power
|
||
|
|
use over a configurable interval.
|
||
|
|
|
||
|
|
The v2 AEM interface is a bit more sophisticated, being able to present
|
||
|
|
a wider range of energy and power use registers, the power cap as
|
||
|
|
set by the AEM software, and temperature sensors.
|
||
|
|
|
||
|
|
Special Features
|
||
|
|
----------------
|
||
|
|
|
||
|
|
The "power_cap" value displays the current system power cap, as set by
|
||
|
|
the Active Energy Manager software. Setting the power cap from the host
|
||
|
|
is not currently supported.
|