Merge branch 'accecn-protocol-case-handling-series'
Chia-Yu Chang says:
====================
AccECN protocol case handling series
Plesae find the v13 AccECN case handling patch series, which covers
several excpetional case handling of Accurate ECN spec (RFC9768),
adds new identifiers to be used by CC modules, adds ecn_delta into
rate_sample, and keeps the ACE counter for computation, etc.
This patch series is part of the full AccECN patch series, which is at
https://github.com/L4STeam/linux-net-next/commits/upstream_l4steam/
---
Chia-Yu Chang (13):
selftests/net: gro: add self-test for TCP CWR flag
tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers
tcp: disable RFC3168 fallback identifier for CC modules
tcp: accecn: handle unexpected AccECN negotiation feedback
tcp: accecn: retransmit downgraded SYN in AccECN negotiation
tcp: add TCP_SYNACK_RETRANS synack_type
tcp: accecn: retransmit SYN/ACK without AccECN option or non-AccECN
SYN/ACK
tcp: accecn: unset ECT if receive or send ACE=0 in AccECN negotiaion
tcp: accecn: fallback outgoing half link to non-AccECN
tcp: accecn: detect loss ACK w/ AccECN option and add
TCP_ACCECN_OPTION_PERSIST
tcp: accecn: add tcpi_ecn_mode and tcpi_option2 in tcp_info
tcp: accecn: enable AccECN
selftests/net: packetdrill: add TCP Accurate ECN cases
Ilpo Järvinen (2):
tcp: try to avoid safer when ACKs are thinned
gro: flushing when CWR is set negatively affects AccECN
Documentation/networking/ip-sysctl.rst | 4 +-
.../networking/net_cachelines/tcp_sock.rst | 1 +
include/linux/tcp.h | 4 +-
include/net/inet_ecn.h | 20 +++-
include/net/tcp.h | 32 +++++-
include/net/tcp_ecn.h | 103 ++++++++++++------
include/uapi/linux/tcp.h | 26 ++++-
net/ipv4/inet_connection_sock.c | 3 +
net/ipv4/sysctl_net_ipv4.c | 4 +-
net/ipv4/tcp.c | 10 ++
net/ipv4/tcp_cong.c | 5 +-
net/ipv4/tcp_input.c | 40 ++++++-
net/ipv4/tcp_minisocks.c | 43 +++++---
net/ipv4/tcp_offload.c | 3 +-
net/ipv4/tcp_output.c | 34 ++++--
net/ipv4/tcp_timer.c | 3 +
tools/testing/selftests/drivers/net/gro.c | 81 ++++++++++----
tools/testing/selftests/drivers/net/gro.py | 3 +-
.../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 | 13 +++
.../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 | 26 +++++
.../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 | 27 +++++
..._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 +++++
76 files changed, 1680 insertions(+), 102 deletions(-)
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
====================
Link: https://patch.msgid.link/20260131222515.8485-1-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
