mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 23:23:55 +08:00
7ebd8b66dd
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
45 lines
1.4 KiB
ReStructuredText
45 lines
1.4 KiB
ReStructuredText
Kernel driver ibmaem
|
|
====================
|
|
|
|
This driver talks to the IBM Systems Director Active Energy Manager, known
|
|
henceforth as AEM.
|
|
|
|
Supported systems:
|
|
|
|
* Any recent IBM System X server with AEM support.
|
|
|
|
This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,
|
|
x3950 M2, and certain HC10/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 AEM
|
|
software. Setting the power cap from the host is not currently supported.
|