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MAILMAN_DEST(0.00)[freebsd-transport]; RWL_MAILSPIKE_POSSIBLE(0.00)[40.107.243.47:from] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: freebsd-transport@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions of transport level network protocols in FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2020 09:49:51 -0000 Hi guys, I'm currently reviewing the pending backports from all the Diffs I have sup= plied so far. One major one is D22497, where all the ECN-related flags got moved from TF_= (t_flags) to TF2_ (t_flags2), and subsequently, all other ECN-related patc= hes will have merge conflicts. However, since there was a major interop issue around CWR flag not being se= t according to RFC (D23364) which I backported out-of-line all the way to r= eleng 11.4, stable/11 and stable/12 (manually adjusting the proper flag ref= erences), I am now wondering: Do we want to backport that (major) change into stable/12, where ECN-flags = move between the tcpcb fields? Or shall we retain the old TF flags for ECN in stable/12, manually patching= any backports from TF2 to TF, for binary compatibility reasons (although I= guess there aren't that many people who go debugging the TCPCB without rec= ompiling the correctly matching tools)? Best regards, Richard Scheffenegger