tree eb5d214ea9655dde23e326c9e444a4962ab8c32f
parent 0963c4b785e956811c67ba7f0b72062cb4aacbaa
author Jeremy Kerr <jk@codeconstruct.com.au> 1726467722 +0800
committer Jeremy Kerr <jk@codeconstruct.com.au> 1741602729 +0800

ncsi: Add a NCSI-over-MCTP transport

Add a facility for performing NCSI commands over a NCSI-over-MCTP
interface, alongside the existing Netlink transport.

This adds a new Interface subclass, MCTPInterface, which performs the
MCTP encapsulation/decapsulation, over an AF_MCTP socket.

Tested: able to perform NCSI commands over a MCTP link, to both emulated
and hardware NIC devices. The -m argument can now target a NIC using
MCTP.

For example, sending a raw command to perform a Get Version ID (type
0x15):

    root@bmc:~# ncsi-cmd -m 9 --package 0 raw 0x15
    <7> Command: type 0x15, payload 0 bytes:
    <7> Response 60 bytes: 00 01 00 2b 95 [...]

Change-Id: I9a7bfddfc4fd1b5bb8d0bff187936a0258d3dade
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>