pfSense

( Please reference https://redmine.pfsense.org/issues/6830 & https://redmine.pfsense.org/issues/7607 ) Information below duplicated from these tickets. Testing environment on bottom of ticket. This is issue is still ongoing.
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cxgbe drivers support ALTq. cxl interface labels should support it:
https://www.freebsd.org/cgi/man.cgi?query=altq&apropos=0&sektion=0&manpath=FreeBSD+8.3-RELEASE&arch=default&format=html

https://github.com/pfsense/pfsense/blob/master/src/etc/inc/interfaces.inc#L5649
Needs "cxl" interface added to allow traffic shaping on the Chelsio interfaces.

Tested on Chelsio T4 on Dell R210 ii Xeon E3-1220 V2

2.4.4-DEVELOPMENT (amd64)
built on Wed Apr 04 19:00:45 CDT 2018
FreeBSD 11.1-RELEASE-p7

(This firewall does not have any interfaces assigned that are capable of using ALTQ traffic shaping.)

This issue has been closed as Resolved twice, but not fixed.