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Message-Id: <20260108155816.36001-1-chia-yu.chang@nokia-bell-labs.com> Date: Thu, 8 Jan 2026 16:58:15 +0100 From: chia-yu.chang@...ia-bell-labs.com To: pabeni@...hat.com, edumazet@...gle.com, parav@...dia.com, linux-doc@...r.kernel.org, corbet@....net, horms@...nel.org, dsahern@...nel.org, kuniyu@...gle.com, bpf@...r.kernel.org, netdev@...r.kernel.org, dave.taht@...il.com, jhs@...atatu.com, kuba@...nel.org, stephen@...workplumber.org, xiyou.wangcong@...il.com, jiri@...nulli.us, davem@...emloft.net, andrew+netdev@...n.ch, donald.hunter@...il.com, ast@...erby.net, liuhangbin@...il.com, shuah@...nel.org, linux-kselftest@...r.kernel.org, ij@...nel.org, ncardwell@...gle.com, koen.de_schepper@...ia-bell-labs.com, g.white@...lelabs.com, ingemar.s.johansson@...csson.com, mirja.kuehlewind@...csson.com, cheshire@...le.com, rs.ietf@....at, Jason_Livingood@...cast.com, vidhi_goel@...le.com Cc: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com> Subject: [PATCH net-next 0/1] AccECN packetdrill selftest series From: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com> Hello, Please find the v1 AccECN packetdrill selftest patch series, which includes several test cases used to verify the functionality of Accurate ECN spec (RFC9768) under a variety of conditions. The used packetdrill is commit 6f2116af6b7e1936a53e80ab31b77f74abda1aaa of the branch: https://github.com/minuscat/packetdrill_accecn Best regards, Chia-Yu Chia-Yu Chang (1): selftests/net: Add packetdrill packetdrill cases .../close-local-close-then-remote-fin.pkt | 25 +++++++ .../accecn/counters/3rd-ack-lost-data-ce.pkt | 22 ++++++ .../accecn/counters/delivered-2ndlargeack.pkt | 25 +++++++ .../delivered-falseoverflow-detect.pkt | 31 ++++++++ .../accecn/counters/delivered-largeack.pkt | 24 +++++++ .../accecn/counters/delivered-largeack2.pkt | 25 +++++++ .../accecn/counters/delivered-maxack.pkt | 25 +++++++ .../accecn/counters/delivered-updates.pkt | 70 +++++++++++++++++++ .../accecn/counters/ecn-field-updates-opt.pkt | 35 ++++++++++ .../accecn/counters/noprogress.pkt | 27 +++++++ .../counters/sack-space-grab-with-ts.pkt | 39 +++++++++++ .../accecn/counters/sack-space-grab.pkt | 28 ++++++++ .../accecn/counters/tsnoprogress.pkt | 26 +++++++ .../accecn/counters/tsprogress.pkt | 25 +++++++ .../accecn/fallback/acc_ecn_disabled.pkt | 14 ++++ .../accecn/fallback/accecn-to-rfc3168.pkt | 18 +++++ .../fallback/client_accecn_options_drop.pkt | 34 +++++++++ .../fallback/client_accecn_options_lost.pkt | 38 ++++++++++ .../net/packetdrill/accecn/fallback/ecn3.pkt | 12 ++++ .../accecn/fallback/ipflags-drop.pkt | 14 ++++ .../accecn/fallback/listen-opt-drop.pkt | 16 +++++ .../accecn/fallback/multiple_syn_ack_drop.pkt | 28 ++++++++ .../accecn/fallback/multiple_syn_drop.pkt | 18 +++++ .../accecn/fallback/negotiation-bleach.pkt | 23 ++++++ .../accecn/fallback/rfc3168-to-fallback.pkt | 18 +++++ .../accecn/fallback/rfc3168-to-rfc3168.pkt | 18 +++++ .../syn_ace_flags_acked_after_retransmit.pkt | 18 +++++ .../accecn/fallback/syn_ace_flags_drop.pkt | 16 +++++ ...n_ack_ace_flags_acked_after_retransmit.pkt | 27 +++++++ .../fallback/syn_ack_ace_flags_drop.pkt | 27 +++++++ .../negotiation/3rd-ack-after-synack-rxmt.pkt | 19 +++++ .../accecn/negotiation/3rd-dups.pkt | 26 +++++++ .../negotiation/accecn_then_notecn_syn.pkt | 28 ++++++++ .../negotiation/clientside-disabled.pkt | 12 ++++ .../negotiation/negotiation-connect.pkt | 23 ++++++ .../accecn/negotiation/negotiation-listen.pkt | 26 +++++++ .../negotiation/negotiation-noopt-connect.pkt | 23 ++++++ .../negotiation/negotiation-optenable.pkt | 23 ++++++ .../negotiation/no-ecn-after-acc-ecn.pkt | 20 ++++++ .../packetdrill/accecn/negotiation/noopt.pkt | 27 +++++++ .../negotiation/notecn_then_accecn_syn.pkt | 28 ++++++++ .../serverside-accecn-disabled1.pkt | 20 ++++++ .../serverside-accecn-disabled2.pkt | 20 ++++++ .../accecn/negotiation/serverside-broken.pkt | 19 +++++ .../negotiation/serverside-ecn-disabled.pkt | 19 +++++ .../accecn/negotiation/serverside-only.pkt | 18 +++++ .../accecn/negotiation/synack-rexmit.pkt | 15 ++++ .../accecn/negotiation/synack-rxmt.pkt | 25 +++++++ .../reflector/2nd-data-as-first-connect.pkt | 30 ++++++++ .../accecn/reflector/2nd-data-as-first.pkt | 24 +++++++ .../3rd-ack-ce-updates-received_ce.pkt | 18 +++++ .../packetdrill/accecn/reflector/syn-ce.pkt | 13 ++++ .../packetdrill/accecn/reflector/syn-ect0.pkt | 13 ++++ .../packetdrill/accecn/reflector/syn-ect1.pkt | 13 ++++ .../synack-ce-updates-delivered-ce.pkt | 22 ++++++ .../accecn/reflector/synack-ce.pkt | 28 ++++++++ .../accecn/reflector/synack-ect0.pkt | 24 +++++++ .../accecn/reflector/synack-ect1.pkt | 24 +++++++ 58 files changed, 1366 insertions(+) create mode 100644 tools/testing/selftests/net/packetdrill/accecn/close/close-local-close-then-remote-fin.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/3rd-ack-lost-data-ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-2ndlargeack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-falseoverflow-detect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-largeack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-largeack2.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-maxack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/delivered-updates.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/ecn-field-updates-opt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/noprogress.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/sack-space-grab-with-ts.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/sack-space-grab.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/tsnoprogress.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/counters/tsprogress.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/acc_ecn_disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/accecn-to-rfc3168.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/client_accecn_options_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/client_accecn_options_lost.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/ecn3.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/ipflags-drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/listen-opt-drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/multiple_syn_ack_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/multiple_syn_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/negotiation-bleach.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/rfc3168-to-fallback.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/rfc3168-to-rfc3168.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/syn_ace_flags_acked_after_retransmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/syn_ace_flags_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/syn_ack_ace_flags_acked_after_retransmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/fallback/syn_ack_ace_flags_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/3rd-ack-after-synack-rxmt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/3rd-dups.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/accecn_then_notecn_syn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/clientside-disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/negotiation-connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/negotiation-listen.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/negotiation-noopt-connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/negotiation-optenable.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/no-ecn-after-acc-ecn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/noopt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/notecn_then_accecn_syn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/serverside-accecn-disabled1.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/serverside-accecn-disabled2.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/serverside-broken.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/serverside-ecn-disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/serverside-only.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/synack-rexmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/negotiation/synack-rxmt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/2nd-data-as-first-connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/2nd-data-as-first.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/3rd-ack-ce-updates-received_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/syn-ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/syn-ect0.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/syn-ect1.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/synack-ce-updates-delivered-ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/synack-ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/synack-ect0.pkt create mode 100644 tools/testing/selftests/net/packetdrill/accecn/reflector/synack-ect1.pkt -- 2.34.1
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