ibmaem: update the documentation to reflect the current name
Minor documentation update to reflect the current full name of the power management hardware interface and reflows the text a bit. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1,8 +1,11 @@
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Kernel driver ibmaem
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======================
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This driver talks to the IBM Systems Director Active Energy Manager, known
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henceforth as AEM.
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Supported systems:
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* Any recent IBM System X server with Active Energy Manager support.
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* Any recent IBM System X server with AEM support.
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This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,
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x3950 M2, and certain HS2x/LS2x/QS2x blades. The IPMI host interface
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driver ("ipmi-si") needs to be loaded for this driver to do anything.
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@ -14,24 +17,22 @@ Author: Darrick J. Wong
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Description
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-----------
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This driver implements sensor reading support for the energy and power
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meters available on various IBM System X hardware through the BMC. All
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sensor banks will be exported as platform devices; this driver can talk
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to both v1 and v2 interfaces. This driver is completely separate from the
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older ibmpex driver.
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This driver implements sensor reading support for the energy and power meters
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available on various IBM System X hardware through the BMC. All sensor banks
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will be exported as platform devices; this driver can talk to both v1 and v2
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interfaces. This driver is completely separate from the older ibmpex driver.
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The v1 AEM interface has a simple set of features to monitor energy use.
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There is a register that displays an estimate of raw energy consumption
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since the last BMC reset, and a power sensor that returns average power
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use over a configurable interval.
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The v1 AEM interface has a simple set of features to monitor energy use. There
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is a register that displays an estimate of raw energy consumption since the
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last BMC reset, and a power sensor that returns average power use over a
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configurable interval.
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The v2 AEM interface is a bit more sophisticated, being able to present
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a wider range of energy and power use registers, the power cap as
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set by the AEM software, and temperature sensors.
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The v2 AEM interface is a bit more sophisticated, being able to present a wider
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range of energy and power use registers, the power cap as set by the AEM
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software, and temperature sensors.
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Special Features
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----------------
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The "power_cap" value displays the current system power cap, as set by
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the Active Energy Manager software. Setting the power cap from the host
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is not currently supported.
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The "power_cap" value displays the current system power cap, as set by the AEM
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software. Setting the power cap from the host is not currently supported.
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/*
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* A hwmon driver for the IBM Active Energy Manager temperature/power sensors
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* and capping functionality.
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* A hwmon driver for the IBM System Director Active Energy Manager (AEM)
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* temperature/power/energy sensors and capping functionality.
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* Copyright (C) 2008 IBM
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*
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* Author: Darrick J. Wong <djwong@us.ibm.com>
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@ -1104,7 +1104,7 @@ static void __exit aem_exit(void)
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}
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MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
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MODULE_DESCRIPTION("IBM Active Energy Manager power/temp sensor driver");
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MODULE_DESCRIPTION("IBM AEM power/temp/energy sensor driver");
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MODULE_LICENSE("GPL");
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module_init(aem_init);
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