| 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. |
