User`s guide

Appendix C • 75
outside or remote. We can use this command to archieve this goal.
C.1.6.1 Dynamic IPMB address allocation
ü Query current GA and I2C address
Action Byte Code Description
0 0xC0 NetFn/LUN for OEM, 0
Request
1 0xF0 OEM defined command
0 Complete Code 00 means OK
1 IPMB address 0xB0-0xEC besides C2 is reserved
2 GA reading 0x1-0x31 is valid
Response
4 Internal value Don’t care
ü Rescan GA
In hot swap insertion time, BMC receive power from long pin but GA
pins still isolated and cause the reading incorrect. To fix up the
problem, we can force BMC to rescan GA pins and reset the IPMB.
Detailed commanf input/ouput are listed below:
Action Byte Code Description
0 0xC0 NetFn/LUN for OEM, 0
Request
1 0x22 OEM defined command
0 Complete Code 00 means OK
Response
1 IPMB address New IPMB address.
C.1.6.2 Event Autoforward Control
By default, the event autoforward function is enabled. If you want to turn it
on/off, the following commands can be issued to the BMC.
ü Enable/Disable Event Autoforward
Action Byte Code Description
0 0xC0 NetFn/LUN for OEM , 0
1 0x10 OEM defined command
Request
2 *TBD
A nonzero value means “enable”
otherwise zero mean “disbale”
0 Complete Code 00 means OK
Response
1 New value New control value