1 ===================================
2 Dell Systems Management Base Driver
3 ===================================
4
5 Overview
6 ========
7
8 The Dell Systems Management Base Driver provid
9 systems management software such as Dell OpenM
10 management interrupts and host control actions
11 power off after OS shutdown) on certain Dell s
12
13 Dell OpenManage requires this driver on the fo
14 300, 1300, 1400, 400SC, 500SC, 1500SC, 1550, 6
15 700, and 750. Other Dell software such as the
16 is expected to make use of this driver, and it
17 driver on other Dell systems.
18
19 The Dell libsmbios project aims towards provid
20 information as possible. See http://linux.del
21 more information about the libsmbios project.
22
23
24 System Management Interrupt
25 ===========================
26
27 On some Dell systems, systems management softw
28 management information via a system management
29 buffer must reside in 32-bit address space, an
30 buffer is required for the SMI. The driver ma
31 the SMI and provides a way for the application
32 The driver creates the following sysfs entries
33 software to perform these system management in
34
35 /sys/devices/platform/dcdbas/smi_data
36 /sys/devices/platform/dcdbas/smi_data_
37 /sys/devices/platform/dcdbas/smi_data_
38 /sys/devices/platform/dcdbas/smi_reque
39
40 Systems management software must perform the f
41 a SMI using this driver:
42
43 1) Lock smi_data.
44 2) Write system management command to smi_data
45 3) Write "1" to smi_request to generate a call
46 "2" to generate a raw SMI.
47 4) Read system management command response fro
48 5) Unlock smi_data.
49
50
51 Host Control Action
52 ===================
53
54 Dell OpenManage supports a host control featur
55 to perform a power cycle or power off of the s
56 shutting down. On some Dell systems, this hos
57 a driver perform a SMI after the OS has finish
58
59 The driver creates the following sysfs entries
60 to schedule the driver to perform a power cycl
61 action after the system has finished shutting
62
63 /sys/devices/platform/dcdbas/host_control_acti
64 /sys/devices/platform/dcdbas/host_control_smi_
65 /sys/devices/platform/dcdbas/host_control_on_s
66
67 Dell OpenManage performs the following steps t
68 power off host control action using this drive
69
70 1) Write host control action to be performed t
71 2) Write type of SMI that driver needs to perf
72 3) Write "1" to host_control_on_shutdown to en
73 4) Initiate OS shutdown.
74 (Driver will perform host control SMI when
75 has finished shutting down.)
76
77
78 Host Control SMI Type
79 =====================
80
81 The following table shows the value to write t
82 perform a power cycle or power off host contro
83
84 =================== =====================
85 PowerEdge System Host Control SMI Type
86 =================== =====================
87 300 HC_SMITYPE_TYPE1
88 1300 HC_SMITYPE_TYPE1
89 1400 HC_SMITYPE_TYPE2
90 500SC HC_SMITYPE_TYPE2
91 1500SC HC_SMITYPE_TYPE2
92 1550 HC_SMITYPE_TYPE2
93 600SC HC_SMITYPE_TYPE2
94 1600SC HC_SMITYPE_TYPE2
95 650 HC_SMITYPE_TYPE2
96 1655MC HC_SMITYPE_TYPE2
97 700 HC_SMITYPE_TYPE3
98 750 HC_SMITYPE_TYPE3
99 =================== =====================
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