[ONIE-TLV issue] About TLV, type code 0xFD, Vendor Extension. about onie HOT 3 CLOSED

Can anyone give me an example to illustrate the type code 0xFD's value field format?

from onie.

Indeed, the documentation for setting type code 0xFD "Vendor Extension" is absent. Also it is not entirely clear from the source code. The docs for the command are here:
https://github.com/opencomputeproject/onie/wiki/Design-Spec-x86-Linux-Kernel

Nevertheless, here is how it works, using a DELL-S6000 as an example:

ONIE:/ # onie-syseeprom -s 0xfd="0x12 0x34 0xAA 0x0A"
Adding   TLV 0xfd: Vendor Extension
Programming passed.
TlvInfo Header:
   Id String:    TlvInfo
   Version:      1
   Total Length: 95
TLV Name             Code Len Value
-------------------- ---- --- -----
Service Tag          0x2F   7 2RY8VS1
Base MAC Address     0x24   6 44:38:39:00:7B:0E
MAC Addresses        0x2A   2 129
Product Name         0x21   5 S6000
Manufacturer         0x2B   4 DELL
Serial Number        0x23   7 2RY8VS1
Platform Name        0x28  26 x86_64-dell_s6000_s1220-r0
Loader Version       0x29  10 2015.02.01
Vendor Extension     0xFD   4  0x12 0x34 0xAA 0x0A
CRC-32               0xFE   4 0x7CA831DF
Checksum is valid.

There a few particularities you have to watch out for:

• The type code must be 0xfd (lower case). Using 0xFD will not work. That should be fixed.
• The value is a space separated list of bytes.
• The bytes can be specified in decimal or hex. If hex then the 0x prefix is required.

All of this should end up in the docs for this command.

from onie.

Dear cbrune:
Thanks for your clear explain and illustrate. I will take care with "space separated list of bytes" and make a try on newest ONIE github code. And maybe fixed the case issue(0xfd, 0xFD).

from onie.