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Linux 6.16 Expected To Remove Datagram Congestion Control Protocol "DCCP" Networking
The Datagram Congestion Control Protocol (DCCP) intended for online gaming, IP telephony, multimedia streaming, and other online real-time purposes for this transport layer protocol is expected to be stripped out of the Linux kernel with the upcoming v6.16 cycle
The researcher mentioned a plan to address the licensing issue, upstream the patches, and step up as a maintainer, but there has been no further communication since then. It allows us to freely reorganize the layout of struct inet_connection_sock, which is currently shared with DCCP, and optimize it to reduce the number of cachelines accessed in the TCP fast path. Barring any last minute change of heart, now that this DCCP removal is queued to net-next, it's expected to be submitted for the Linux 6.16 merge window in late May or early June.
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