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1Kernel driver ibmaem2====================3 4This driver talks to the IBM Systems Director Active Energy Manager, known5henceforth as AEM.6 7Supported systems:8 9 * Any recent IBM System X server with AEM support.10 11 This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,12 x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades.13 14 The IPMI host interface15 driver ("ipmi-si") needs to be loaded for this driver to do anything.16 17 Prefix: 'ibmaem'18 19 Datasheet: Not available20 21Author: Darrick J. Wong22 23Description24-----------25 26This driver implements sensor reading support for the energy and power meters27available on various IBM System X hardware through the BMC. All sensor banks28will be exported as platform devices; this driver can talk to both v1 and v229interfaces. This driver is completely separate from the older ibmpex driver.30 31The v1 AEM interface has a simple set of features to monitor energy use. There32is a register that displays an estimate of raw energy consumption since the33last BMC reset, and a power sensor that returns average power use over a34configurable interval.35 36The v2 AEM interface is a bit more sophisticated, being able to present a wider37range of energy and power use registers, the power cap as set by the AEM38software, and temperature sensors.39 40Special Features41----------------42 43The "power_cap" value displays the current system power cap, as set by the AEM44software. Setting the power cap from the host is not currently supported.45