Intel MPCBL0001 manual Ipmc Firmware Code, Link Descriptors for E-Keying

Hardware Management Overview

3.4E-Keying

E-Keying has been defined in the PICMG 3.0 Specification to prevent board damage, prevent misoperation, and verify fabric compatibility. The FRU data contains the board point-to-point connectivity record as described in Section 3.7.2.3 of the PICMG 3.0 Specification.

Upon management power-on, the firmware sets the Fibre Channel ports to front panel by default. When the board enters M3 power state, the shelf manager reads in the board point-to-point connectivity record from FRU and determines whether the board can enable the Fibre Channel ports to the back plane. Set/Get Port State IPMI commands defined by the PICMG 3.0 Specification are used for either granting or rejecting the E-keys.

If user Fibre Channel selection is to the front, the firmware maintains the Fibre Channel ports to the front panel regardless of the shelf manager’s granting or rejecting of E-keys for the board.

Table 12 on page 44, describes the:

•Connections to base and fabric interfaces on the MPCBL0001 board for E-keying purposes.

•Link descriptor list for the two Gigabit Ethernet channels connected to the base interface and the two Fibre Channels on the fabric interface.

Table 12.	Link Descriptors for E-Keying
	No	Link	Link	Link Type	Link Type	Link Designator			Link Desc
		Descriptor	Grouping	Extension					Value
						Port 0 -	Interface	Channel
			ID
						3 Flags		Number
			[31:24]	[23:20]	[19:12]	{11:8}	{7:6}	[5:0}
	1	Ethernet	0	0000	00000001	0001	00	000001	0x00001101
		Port 1
	2	Ethernet	0	0000	00000001	0001	00	000010	0x00001102
		Port 2
	3	FC Port 1	0	0010	00000010	1000	01	000001	0x00202C41
	4	FC Port 2	0	0010	00000010	1000	01	000010	0x00202C42

NOTE: Fibre Channel E-keying is only applicable to MPCBL0001FXX products.

3.5IPMC Firmware Code

IPMC firmware code is organized into boot code and operational code, both of which are stored in a flash module. Upon an IPMC reset, the IPMC executes the boot code and performs the following:

1.Self test to verify the status of its hardware and memory.

2.Sets up the internal real-time operating system (RTOS).

3.Performs a checksum of the operational code.

Upon successful verification of the operational code checksum, the firmware will jump to the operational code.

44	Intel NetStructure® MPCBL0001 High Performance Single Board Computer
	Technical Product Specification