94 CPCI-7806/CPCI-7806RC Pentium/Celeron M Universal CompactPCI Single Board Computer
Publication No. 500-657806-000 Rev. G
E.7.2 Forwarding of Platform Events
A chassis may contain other IPMI devices, such as an alarm card, which will
generate Platform Events. The alarm card would send the event to the I
2
C slave
address that was provided by a “Set Event Receiver” command.
The Abaco IPMI firmware will immediately acknowledge any Platform Event it
receives, then forward the packet to the slave address provided by a “Set Platform
Event Forwarding Address” command.
The CPCI-7806/CPCI-7806RC should not send a response for the Platform Event
to the Zircon nor to the originating device, as the Zircon has already responded.
Software on the CPCI-7806/CPCI-7806RC should set the forwarding address first
then use IPMB relay to send a “Set Event Receiver” command to the alarm cards
or other IPMI devices in the chassis.
E.7.3 Set Platform Event Forwarding Address
This command sets the slave address and the LUN of the Event Receiver to which
the Platform Events are forwarded.
If the forwarding address is 0 (by default, or deliberately set), events will not be
forwarded.
In all cases, any Platform Events will be acknowledged back to the original
sender. The CPCI-7806/CPCI-7806RC should not acknowledge the forwarded
event back to the IPMI controller.
Table E-21 NetFn 0x32, Cmd 0x80
Byte
Value
Data Field
Comments
Request-data
1
XXh
[7:1] – I2C slave address
[0] – always 0
2
XXh
[7:2] – 0
[1:0] – LUN
Response-data
1
XXh
Completion code