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Differential D56265

ifconfig: Add CMIS support for 400GbE optics
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Authored by gallatin on Apr 5 2026, 10:33 PM.
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kib
sumit.saxena_broadcom.com
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rG963f1a5455c9: ifconfig: add CMIS support for 400GbE optics
Summary

This change adds support to ifconfig/libifconfig for CMIS based optics. CMIS is a new standard that is used in 400GbE optics

Note that this change was created with the help of Claude code. Claude transcribed the CMIS spec into cmis.h under heavy supervision from me.

Test Plan

I have tested this with mlx5en and iflib + out-of-tree bnxt on ConnectX-7 and Thor2 NICs and have verified the reported optics vendors, temperatures and light levels match the information provided by the vendors' tools.

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rG FreeBSD src repository
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Revision Contents
Changeset List

PathSize
lib/
libifconfig/
27 lines
228 lines
120 lines
sbin/
ifconfig/
16 lines
sys/
net/
450 lines

Diff 175519

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lib/libifconfig/libifconfig_sfp.h

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lib/libifconfig/libifconfig_sfp.c

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lib/libifconfig/sfp.lua

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sbin/ifconfig/sfp.c

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sys/net/cmis.h

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