Artesyn ATCA-9305 User's Manual (May 2014) - Manual (Page 198)

System Management
ATCA-9305 User’s Manual (10009109-07) 198
7.16 MESSAGE LISTENERS
Payload port dynamic control can be implemented via message listeners. The payload can add
itself as a message listener to any message destined for the IPMC target either over IPMB-0 or
the payload serial interface. When the IPMC receives a subscribed message, the IPMC firmware
copies the message into the payload’s LUN-10 Receive Message Queue and notifies the
payload via an unprintable character (ASCII 07, BELL). The payload receives the message as
described in “
Message Bridging .” The message listener list is only eight entries long. The
payload can add/remove/get list at any time.
7.16.1 Add Message Listener
The Add Message Listener command adds a specified Network Function and Command to the
Message Listener List. The command returns completion code (0x00) and IANA. If this
command does not complete successfully (e.g., due to a full list), it returns 0xCD and IANA.
The message listener list is not persistent across IPMC reboots.
Table 7-43 Add Message Listener Command
Type Byte Data Field
Request Data 1:3 Artesyn Embedded Technologies - Embedded Computing Inc. IANA Private
Enterprise ID
0x0065CD = 26061 (Artesyn Embedded Technologies - Embedded
Computing Inc.)
LSB Byte first:byte 1 = CD, byte 2 = 65, byte 3 = 00
4 Network function to add
5 Command to add
Response Data 1 Completion Code