Filter
Top Products
IPMI Controller: IPMI Message Protocol
Katana
®
752i User’s Manual 10006024-04
11-8
IPMI Network Function Codes
All IPMI messages contain a Network Function Code field, which defines the category for a
particular command. Each category has two codes assigned to it–one for requests and one
for responses. The code for a request has the least significant bit of the field set to zero,
while the code for a response has the least significant bit of the field set to one.
Table 11-6
lists the network function codes (as defined in the IPMI specification) used by the Zircon
PM.
Table 11-6: Network Function Codes
Hex Code
Value(s): Name: Type: Description:
00, 01 Chassis chassis device
requests/responses
00 = command/request, 01 = response:
common chassis control and status
functions
02, 03 Bridge bridge
requests/responses
02 = request, 03 = response:
message contains data for bridging to the
next bus. Typically, the data is another
message, which also may be a bridging
message. This function is only present on
bridge nodes.
04, 05 Sensor/
Event
sensor and event
requests/responses
04 = command/request, 05 = response:
for configuration and transmission of Event
Messages and system Sensors. This
function may be present on any node.
06, 07 App application
requests/responses
06 = command/request, 07 = response:
message is implementation-specific for a
particular device, as defined by the IPMI
specification
08, 09 Firmware firmware transfer
requests/responses
firmware transfer messages match the
format of application messages, as
determined by the particular device
0A, 0B Storage non-volatile storage
requests/responses
may be present on any node that provides
nonvolatile storage and retrieval services
0C-2F Reserved – reserved: 36 network functions (18 pairs)
30-3F OEM – vendor specific: 16 network functions (8
pairs). The vendor defines functional
semantics for cmd and data fields. The cmd
field must hold the same value in requests
and responses for a given operation to
support IPMI message handling and
transport mechanisms. The controller’s
Manufacturer ID value identifies the vendor
or group.