Chapter 5: System Monitoring and Alarms
64
Get Status Command
The IPMC status is four bytes describing the logical state of the IPMC and the payload.
provides a description of the IPMC status bits:
The IPMC firmware notifies the payload about changes of all status bits except for bits 0-2 of
byte 1 by sending an unprintable character (ASCII 07, BELL) over the payload interface. The
payload is expected to use the
Get Status
command to identify pending events and other SIPL
commands to provide a response (if necessary). The event notification character is sent in a
synchronous manner, and does not appear in the contents of SIPL messages sent to the
payload.
The
Get Status
command has the following synopsis:
[B8 xx 00 0A 40 00]
The IPMC responds to the
Get Status
command with the following reply:
[BC xx 00 00 0A 40 00 <byte1> <byte2> <byte3> <byte4>]
Table 5-6:
IPMC Status Bits
Bit
Name
Description
Byte 1
0 (LSB)
Control
If set to 0, the IPMC control over the payload is disabled.
1-2
NA
Reserved
3
Sensor Alert
If set to 1, indicates that at least one of the IPMC sensors detects
threshold crossing.
4
Reset Alert
If set to 1, indicates that the payload is going to be reset.
5
Shutdown Alert
If set to 1, indicates that the payload is going to be shut down.
6
Diagnostic Interrupt
Request
If set to 1, indicates that a payload diagnostic interrupt request has
arrived.
7 (MSB)
Graceful Reboot
Request
If set to 1, indicates that the payload is requested to initiate the graceful
reboot sequence.
Byte 2
0-7
NA
Reserved
Byte 3
0-7
NA
Reserved
Byte 4
0-3
NA
Reserved
4
Message Received
If set to 1, indicates that a message for the payload has been received.
5-7
NA
Reserved
Содержание AMC131
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