==================== 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
