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Protocols — Device Path Protocol
Version 1.10 12/01/02 8-13
8.3.4.10 IPv6 Device Path
Table 8-19. IPv6 Device Path
Mnemonic
Byte
Offset
Byte
Length
Description
Type 0 1 Type 3 – Messaging Device Path
Sub-Type 1 1 Sub-Type 13 – IPv6
Length 2 2 Length of this structure in bytes. Length is 43 bytes.
Local IP Address 4 16 The local IPv6 address
Remote IP Address 20 16 The remote IPv6 address
Local Port 36 2 The local port number
Remote Port 38 2 The remote port number
Protocol 40 2 The network protocol (i.e. UDP, TCP). See RFC 1700
StaticIPAddress 42 1 0x00 - The Source IP Address was assigned though DHCP
0x01 - The Source IP Address is statically bound
8.3.4.11 InfiniBand Device Path
Table 8-20. InfiniBand Device Path
Mnemonic
Byte
Offset
Byte
Length
Description
Type 0 1 Type 3 – Messaging Device Path
Sub-Type 1 1 Sub-Type 9 – InfiniBand
Length 2 2 Length of this structure in bytes. Length is 48 bytes.
Resource Flags 4 4 Flags to help identify/manage InfiniBand device path
elements:
• Bit 0 – IOC/Service (0b = IOC, 1b = Service)
• Bit 1 – Extend Boot Environment
• Bit 2 – Console Protocol
• Bit 3 – Storage Protocol
• Bit 4 – Network Protocol
All other bits are reserved.
PORT GID 8 16 128-bit Global Identifier for remote fabric port
IOC GUID/Service ID 24 8 64-bit unique identifier to remote IOC or server process.
Interpretation of field specified by Resource Flags (bit 0)
Target Port ID 32 8 64-bit persistent ID of remote IOC port
Device ID 40 8 64-bit persistent ID of remote device
Note: The usage of the terms GUID and GID is per the InfiniBand Specification. The term GUID is not
the same as the EFI_GUID type defined in this EFI Specification.