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Differential D28972

Use PRR for ECN congestion recovery
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Authored by rscheff on Feb 27 2021, 6:55 PM.
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Subscribers
imp
melifaro

Details

Reviewers
tuexen
kbowling
rrs
Group Reviewers
transport
Commits
rGf69b9760c202: tcp: Use PRR for ECN congestion recovery
rGb9f803b7d4b7: tcp: Use PRR for ECN congestion recovery
Summary

6937bis mentions that PRR can be used for ECN
congestion recovery also (and also during non-SACK
loss recovery). Implementing the ECN aspect as a
new feature.

Note that this requires the sysctl 6675_pipe to
be enabled.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 37445
Build 34334: arc lint + arc unit

Event Timeline

rscheff created this revision.Feb 27 2021, 6:55 PM
Herald added 1 blocking reviewer(s): transport. · View Herald TranscriptFeb 27 2021, 6:55 PM
Herald added subscribers: melifaro, imp. · View Herald Transcript
rscheff requested review of this revision.Feb 27 2021, 6:55 PM
Harbormaster completed remote builds in B37441: Diff 84803.Feb 27 2021, 6:55 PM
rscheff updated this revision to Diff 84807.Feb 27 2021, 8:14 PM
  • set fack for old pipe in prr
Harbormaster completed remote builds in B37445: Diff 84807.Feb 27 2021, 8:14 PM
rrs accepted this revision.Mar 25 2021, 2:35 PM
This revision is now accepted and ready to land.Mar 25 2021, 2:35 PM
rscheff updated this revision to Diff 86326.Mar 26 2021, 12:51 AM
  • adjust after rebase
This revision now requires review to proceed.Mar 26 2021, 12:51 AM
Harbormaster completed remote builds in B38076: Diff 86326.Mar 26 2021, 12:51 AM
rscheff updated this revision to Diff 86327.Mar 26 2021, 1:04 AM
  • add minimum cwnd of one segment
Harbormaster completed remote builds in B38077: Diff 86327.Mar 26 2021, 1:04 AM
This revision was not accepted when it landed; it landed in state Needs Review.Mar 26 2021, 1:10 AM
Closed by commit rGb9f803b7d4b7: tcp: Use PRR for ECN congestion recovery (authored by rscheff). · Explain Why
This revision was automatically updated to reflect the committed changes.
rscheff added a commit: rGb9f803b7d4b7: tcp: Use PRR for ECN congestion recovery.
rscheff added a commit: rGf69b9760c202: tcp: Use PRR for ECN congestion recovery.Apr 22 2021, 6:32 PM

Revision Contents
Changeset List

PathSize
sys/
netinet/
18 lines

Diff 84807

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sys/netinet/tcp_input.c

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