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netgraph/ng_car: Add color marking code

Description

netgraph/ng_car: Add color marking code

Chained policing should be able to reuse the classification of
traffic. A new mbuf_tag type is defined to handle gereral QoS
marking. A new subtype is defined to track the color marking.

Reviewed by: manpages (bcr), melifaro, kp
Sponsored by: IKS Service GmbH
Differential Revision: https://reviews.freebsd.org/D22110

(cherry picked from commit d0d2e523bafb74180f8bebb90788790f0d2f0290)

Details

Provenance
donnerAuthored on Jan 27 2021, 8:19 PM
Reviewer
melifaro
Differential Revision
D22110: netgraph/ng_car: Add color marking code
Parents
rGc3aa4ba5dfc0: Ensure cwnd doesn't shrink to zero with PRR
Branches
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Tags
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