1 Kernel driver ibmaem 1 Kernel driver ibmaem
2 ==================== 2 ====================
3 3
4 This driver talks to the IBM Systems Director 4 This driver talks to the IBM Systems Director Active Energy Manager, known
5 henceforth as AEM. 5 henceforth as AEM.
6 6
7 Supported systems: 7 Supported systems:
8 8
9 * Any recent IBM System X server with AEM su 9 * Any recent IBM System X server with AEM support.
10 10
11 This includes the x3350, x3550, x3650, x36 11 This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,
12 x3950 M2, and certain HC10/HS2x/LS2x/QS2x 12 x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades.
13 13
14 The IPMI host interface 14 The IPMI host interface
15 driver ("ipmi-si") needs to be loaded for 15 driver ("ipmi-si") needs to be loaded for this driver to do anything.
16 16
17 Prefix: 'ibmaem' 17 Prefix: 'ibmaem'
18 18
19 Datasheet: Not available 19 Datasheet: Not available
20 20
21 Author: Darrick J. Wong 21 Author: Darrick J. Wong
22 22
23 Description 23 Description
24 ----------- 24 -----------
25 25
26 This driver implements sensor reading support 26 This driver implements sensor reading support for the energy and power meters
27 available on various IBM System X hardware thr 27 available on various IBM System X hardware through the BMC. All sensor banks
28 will be exported as platform devices; this dri 28 will be exported as platform devices; this driver can talk to both v1 and v2
29 interfaces. This driver is completely separat 29 interfaces. This driver is completely separate from the older ibmpex driver.
30 30
31 The v1 AEM interface has a simple set of featu 31 The v1 AEM interface has a simple set of features to monitor energy use. There
32 is a register that displays an estimate of raw 32 is a register that displays an estimate of raw energy consumption since the
33 last BMC reset, and a power sensor that return 33 last BMC reset, and a power sensor that returns average power use over a
34 configurable interval. 34 configurable interval.
35 35
36 The v2 AEM interface is a bit more sophisticat 36 The v2 AEM interface is a bit more sophisticated, being able to present a wider
37 range of energy and power use registers, the p 37 range of energy and power use registers, the power cap as set by the AEM
38 software, and temperature sensors. 38 software, and temperature sensors.
39 39
40 Special Features 40 Special Features
41 ---------------- 41 ----------------
42 42
43 The "power_cap" value displays the current sys 43 The "power_cap" value displays the current system power cap, as set by the AEM
44 software. Setting the power cap from the host 44 software. Setting the power cap from the host is not currently supported.
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