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Message-Id: <20260114162915.94820-1-chia-yu.chang@nokia-bell-labs.com> Date: Wed, 14 Jan 2026 17:29:14 +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 v2 net-next 0/1] AccECN packetdrill selftest series From: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com> Hello, Please find the v2 AccECN packetdrill selftest patch series, which includes 58 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 --- v2: - Change patch title - Rename all AccECN cases with tcp_accecn in the prefix - Move all cases under tools/testing/selftests/net/packetdrill/ --- Chia-Yu Chang (1): selftests/net: packetdrill: add TCP Accurate ECN cases .../tcp_accecn_2nd_data_as_first.pkt | 24 +++++++ .../tcp_accecn_2nd_data_as_first_connect.pkt | 30 ++++++++ .../tcp_accecn_3rd_ack_after_synack_rxmt.pkt | 19 +++++ ..._accecn_3rd_ack_ce_updates_received_ce.pkt | 18 +++++ .../tcp_accecn_3rd_ack_lost_data_ce.pkt | 22 ++++++ .../net/packetdrill/tcp_accecn_3rd_dups.pkt | 26 +++++++ .../tcp_accecn_acc_ecn_disabled.pkt | 14 ++++ .../tcp_accecn_accecn_then_notecn_syn.pkt | 28 ++++++++ .../tcp_accecn_accecn_to_rfc3168.pkt | 18 +++++ .../tcp_accecn_client_accecn_options_drop.pkt | 34 +++++++++ .../tcp_accecn_client_accecn_options_lost.pkt | 38 ++++++++++ .../tcp_accecn_clientside_disabled.pkt | 12 ++++ ...cecn_close_local_close_then_remote_fin.pkt | 25 +++++++ .../tcp_accecn_delivered_2ndlargeack.pkt | 25 +++++++ ..._accecn_delivered_falseoverflow_detect.pkt | 31 ++++++++ .../tcp_accecn_delivered_largeack.pkt | 24 +++++++ .../tcp_accecn_delivered_largeack2.pkt | 25 +++++++ .../tcp_accecn_delivered_maxack.pkt | 25 +++++++ .../tcp_accecn_delivered_updates.pkt | 70 +++++++++++++++++++ .../net/packetdrill/tcp_accecn_ecn3.pkt | 12 ++++ .../tcp_accecn_ecn_field_updates_opt.pkt | 35 ++++++++++ .../packetdrill/tcp_accecn_ipflags_drop.pkt | 14 ++++ .../tcp_accecn_listen_opt_drop.pkt | 16 +++++ .../tcp_accecn_multiple_syn_ack_drop.pkt | 28 ++++++++ .../tcp_accecn_multiple_syn_drop.pkt | 18 +++++ .../tcp_accecn_negotiation_bleach.pkt | 23 ++++++ .../tcp_accecn_negotiation_connect.pkt | 23 ++++++ .../tcp_accecn_negotiation_listen.pkt | 26 +++++++ .../tcp_accecn_negotiation_noopt_connect.pkt | 23 ++++++ .../tcp_accecn_negotiation_optenable.pkt | 23 ++++++ .../tcp_accecn_no_ecn_after_accecn.pkt | 20 ++++++ .../net/packetdrill/tcp_accecn_noopt.pkt | 27 +++++++ .../net/packetdrill/tcp_accecn_noprogress.pkt | 27 +++++++ .../tcp_accecn_notecn_then_accecn_syn.pkt | 28 ++++++++ .../tcp_accecn_rfc3168_to_fallback.pkt | 18 +++++ .../tcp_accecn_rfc3168_to_rfc3168.pkt | 18 +++++ .../tcp_accecn_sack_space_grab.pkt | 28 ++++++++ .../tcp_accecn_sack_space_grab_with_ts.pkt | 39 +++++++++++ ...tcp_accecn_serverside_accecn_disabled1.pkt | 20 ++++++ ...tcp_accecn_serverside_accecn_disabled2.pkt | 20 ++++++ .../tcp_accecn_serverside_broken.pkt | 19 +++++ .../tcp_accecn_serverside_ecn_disabled.pkt | 19 +++++ .../tcp_accecn_serverside_only.pkt | 18 +++++ ...n_syn_ace_flags_acked_after_retransmit.pkt | 18 +++++ .../tcp_accecn_syn_ace_flags_drop.pkt | 16 +++++ ...n_ack_ace_flags_acked_after_retransmit.pkt | 27 +++++++ .../tcp_accecn_syn_ack_ace_flags_drop.pkt | 27 +++++++ .../net/packetdrill/tcp_accecn_syn_ce.pkt | 13 ++++ .../net/packetdrill/tcp_accecn_syn_ect0.pkt | 13 ++++ .../net/packetdrill/tcp_accecn_syn_ect1.pkt | 13 ++++ .../net/packetdrill/tcp_accecn_synack_ce.pkt | 28 ++++++++ ..._accecn_synack_ce_updates_delivered_ce.pkt | 22 ++++++ .../packetdrill/tcp_accecn_synack_ect0.pkt | 24 +++++++ .../packetdrill/tcp_accecn_synack_ect1.pkt | 24 +++++++ .../packetdrill/tcp_accecn_synack_rexmit.pkt | 15 ++++ .../packetdrill/tcp_accecn_synack_rxmt.pkt | 25 +++++++ .../packetdrill/tcp_accecn_tsnoprogress.pkt | 26 +++++++ .../net/packetdrill/tcp_accecn_tsprogress.pkt | 25 +++++++ 58 files changed, 1366 insertions(+) create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_2nd_data_as_first.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_2nd_data_as_first_connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_3rd_ack_after_synack_rxmt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_3rd_ack_ce_updates_received_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_3rd_ack_lost_data_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_3rd_dups.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_acc_ecn_disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_accecn_then_notecn_syn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_accecn_to_rfc3168.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_client_accecn_options_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_client_accecn_options_lost.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_clientside_disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_close_local_close_then_remote_fin.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_2ndlargeack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_falseoverflow_detect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_largeack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_largeack2.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_maxack.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_delivered_updates.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_ecn3.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_ecn_field_updates_opt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_ipflags_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_listen_opt_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_multiple_syn_ack_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_multiple_syn_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_bleach.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_listen.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_noopt_connect.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_optenable.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_no_ecn_after_accecn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_noopt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_noprogress.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_notecn_then_accecn_syn.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_rfc3168_to_fallback.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_rfc3168_to_rfc3168.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_sack_space_grab.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_sack_space_grab_with_ts.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_serverside_accecn_disabled1.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_serverside_accecn_disabled2.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_serverside_broken.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_serverside_ecn_disabled.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_serverside_only.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ace_flags_acked_after_retransmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ace_flags_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ack_ace_flags_acked_after_retransmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ack_ace_flags_drop.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ect0.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_syn_ect1.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_ce_updates_delivered_ce.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_ect0.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_ect1.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_rexmit.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_synack_rxmt.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_tsnoprogress.pkt create mode 100644 tools/testing/selftests/net/packetdrill/tcp_accecn_tsprogress.pkt -- 2.34.1
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