mirror-linux/include/net
Chia-Yu Chang 100f946b8d tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers
Two flags for congestion control (CC) module are added in this patch
related to AccECN negotiation. First, a new flag (TCP_CONG_NEEDS_ACCECN)
defines that the CC expects to negotiate AccECN functionality using the
ECE, CWR and AE flags in the TCP header.

Second, during ECN negotiation, ECT(0) in the IP header is used. This
patch enables CC to control whether ECT(0) or ECT(1) should be used on
a per-segment basis. A new flag (TCP_CONG_ECT_1_NEGOTIATION) defines the
expected ECT value in the IP header by the CA when not-yet initialized
for the connection.

The detailed AccECN negotiaotn can be found in IETF RFC9768.

Co-developed-by: Olivier Tilmans <olivier.tilmans@nokia.com>
Signed-off-by: Olivier Tilmans <olivier.tilmans@nokia.com>
Signed-off-by: Ilpo Järvinen <ij@kernel.org>
Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260131222515.8485-5-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-02-03 15:13:24 +01:00
..
9p 9p: convert to the new mount API 2025-11-03 16:49:53 +09:00
bluetooth Bluetooth: L2CAP: Fix not tracking outstanding TX ident 2026-01-29 13:36:35 -05:00
caif caif: Remove unused cfsrvl_getphyid 2024-10-08 15:33:49 -07:00
iucv net: reformat kdoc return statements 2024-12-09 14:44:59 -08:00
libeth libeth: xdp: Disable generic kCFI pass for libeth_xdp_tx_xmit_bulk() 2025-10-29 20:04:55 -07:00
mana net: mana: Implement ndo_tx_timeout and serialize queue resets per port. 2026-01-13 19:14:36 -08:00
netfilter netfilter: nfnetlink_queue: optimize verdict lookup with hash table 2026-01-29 09:52:07 +01:00
netns vsock: add netns to vsock core 2026-01-27 10:45:38 +01:00
nfc nfc: nci: Fix race between rfkill and nci_unregister_device(). 2026-01-28 19:32:26 -08:00
page_pool Revert "Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'" 2026-01-20 18:06:01 -08:00
phonet phonet: Convert phonet_routes.lock to spinlock_t. 2024-10-24 16:03:40 +02:00
phy net: phy: realtek: add dummy PHY driver for RTL8127ATF 2026-01-12 19:29:11 -08:00
psp psp: add stats from psp spec to driver facing api 2025-11-07 18:53:57 -08:00
sctp sctp: Remove unused declaration sctp_auth_init_hmacs() 2025-11-14 18:00:34 -08:00
tc_act net_sched: act_skbmod: use RCU in tcf_skbmod_dump() 2025-08-28 16:46:23 -07:00
6lowpan.h
Space.h net: appletalk: remove cops support 2023-10-04 11:49:20 -07:00
act_api.h net_sched: act: remove tcfa_qstats 2025-09-02 15:52:24 -07:00
addrconf.h ipv6: Add in6_dev_rcu(). 2025-11-03 17:40:46 -08:00
af_ieee802154.h
af_rxrpc.h rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
af_unix.h af_unix: Introduce SO_INQ. 2025-07-08 18:05:25 -07:00
af_vsock.h vsock: add netns to vsock core 2026-01-27 10:45:38 +01:00
ah.h
aligned_data.h udp: move udp_memory_allocated into net_aligned_data 2025-07-02 14:22:02 -07:00
amt.h
arp.h
atmclip.h
ax25.h net: ax25: remove plumbing for never-implemented DAMA Master support 2026-01-30 19:19:39 -08:00
ax88796.h
bareudp.h
bond_3ad.h bonding: support aggregator selection based on port priority 2025-09-09 10:56:02 +02:00
bond_alb.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_options.h bonding: add support for per-port LACP actor priority 2025-09-09 10:56:02 +02:00
bonding.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-01-29 17:28:54 -08:00
bpf_sk_storage.h
busy_poll.h net: gro: decouple GRO from the NAPI layer 2025-02-27 14:03:14 +01:00
calipso.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cfg80211-wext.h
cfg80211.h Another fairly large set of changes, notably: 2026-01-29 19:17:43 -08:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-05-30 19:53:51 -07:00
cipso_ipv4.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cls_cgroup.h net/cls_cgroup: Fix task_get_classid() during qdisc run 2025-09-14 11:55:04 -07:00
codel.h codel: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
codel_impl.h
codel_qdisc.h
compat.h
datalink.h net: datalink: Remove unused declarations 2023-07-27 17:17:32 -07:00
dcbevent.h
dcbnl.h
devlink.h devlink: support default values for param-get and param-set 2025-11-20 19:01:22 -08:00
dropreason-core.h net: add net.core.qdisc_max_burst 2026-01-13 10:12:11 +01:00
dropreason.h wifi: mac80211: Drop cooked monitor support 2025-02-11 11:58:17 +01:00
dsa.h net: dsa: properly keep track of conduit reference 2025-12-23 10:32:08 +01:00
dsa_stubs.h net: dsa: Use conduit and user terms 2023-10-24 13:08:14 -07:00
dscp.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
dsfield.h
dst.h inet: add dst4_mtu() and dst6_mtu() helpers 2026-02-02 17:49:29 -08:00
dst_cache.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
dst_metadata.h net: dst_metadata: fix IP_DF bit not extracted from tunnel headers 2025-09-14 14:28:12 -07:00
dst_ops.h net: fix __dst_negative_advice() race 2024-05-29 17:34:49 -07:00
eee.h net: simplify eeecfg_mac_can_tx_lpi 2024-11-13 18:49:50 -08:00
erspan.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
esp.h
espintcp.h inet: preserve const qualifier in inet_csk() 2024-04-01 21:27:08 -07:00
ethoc.h
failover.h
fib_notifier.h net: do not acquire rtnl in fib_seq_sum() 2024-10-11 15:35:05 -07:00
fib_rules.h net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
firewire.h
flow.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
flow_dissector.h flow_dissector: cleanup FLOW_DISSECTOR_KEY_ENC_FLAGS 2024-07-15 09:14:39 -07:00
flow_offload.h net: sched: propagate "skip_sw" flag to struct flow_cls_common_offload 2024-10-30 17:33:53 -07:00
fou.h
fq.h net: fq: Remove unused typedef fq_flow_get_default_t 2023-08-08 15:58:23 -07:00
fq_impl.h
garp.h
gen_stats.h
genetlink.h genetlink: fix typo in comment 2025-09-03 15:16:49 -07:00
geneve.h
gre.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
gro.h gro: inline tcp6_gro_complete() 2026-01-21 19:28:32 -08:00
gro_cells.h
gso.h
gtp.h gtp: properly parse extension headers 2024-05-07 01:35:55 +02:00
gue.h
handshake.h net/handshake: Add helpers for parsing incoming TLS Alerts 2023-07-28 14:07:59 -07:00
hotdata.h net: add net.core.qdisc_max_burst 2026-01-13 10:12:11 +01:00
hwbm.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
icmp.h ipv4: icmp: Pass IPv4 control block structure as an argument to __icmp_send() 2025-09-11 12:22:38 +02:00
ieee8021q.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
ieee80211_radiotap.h wifi: mac80211: add RX flag to report radiotap VHT information 2025-10-30 08:38:51 +01:00
ieee802154_netdev.h mac802154: Handle association requests from peers 2023-11-20 11:43:03 +01:00
if_inet6.h ipv6: anycast: complete RCU handling of struct ifacaddr6 2024-02-26 18:40:34 -08:00
ife.h
inet6_connection_sock.h tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr(). 2025-03-24 12:10:13 -07:00
inet6_hashtables.h tcp: Remove inet6_hash(). 2025-09-22 11:38:43 -07:00
inet_common.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
inet_connection_sock.h tcp: remove icsk->icsk_retransmit_timer 2025-11-25 19:28:29 -08:00
inet_dscp.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
inet_ecn.h tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers 2026-02-03 15:13:24 +01:00
inet_frag.h inet: frags: flush pending skbs in fqdir_pre_exit() 2025-12-10 01:15:27 -08:00
inet_hashtables.h tcp: Update bind bucket state on port release 2025-09-23 10:12:15 +02:00
inet_sock.h ipv6: colocate inet6_cork in inet_cork_full 2026-02-02 17:49:30 -08:00
inet_timewait_sock.h tcp: Update bind bucket state on port release 2025-09-23 10:12:15 +02:00
inetpeer.h inetpeer: remove create argument of inet_getpeer() 2024-12-17 19:37:00 -08:00
ioam6.h net: ioam6: multicast event 2024-02-28 11:19:41 +00:00
ip.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
ip6_checksum.h
ip6_fib.h ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add(). 2025-04-24 09:29:56 +02:00
ip6_route.h inet: add dst4_mtu() and dst6_mtu() helpers 2026-02-02 17:49:29 -08:00
ip6_tunnel.h ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers 2025-07-02 14:32:30 -07:00
ip_fib.h ipv4: Convert ->flowi4_tos to dscp_t. 2025-08-26 17:34:31 -07:00
ip_tunnels.h ipv4: ip_tunnel: spread netdev_lockdep_set_classes() 2026-01-08 18:02:35 -08:00
ip_vs.h ipvs: Fix estimator kthreads preferred affinity 2025-08-13 08:34:33 +02:00
ipcomp.h xfrm: ipcomp: Use crypto_acomp interface 2025-03-21 17:36:49 +08:00
ipconfig.h
ipv6.h ipv6: colocate inet6_cork in inet_cork_full 2026-02-02 17:49:30 -08:00
ipv6_frag.h inet: frags: flush pending skbs in fqdir_pre_exit() 2025-12-10 01:15:27 -08:00
ipv6_stubs.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
iw_handler.h Revert "wifi: cfg80211: unexport wireless_nlevent_flush()" 2024-10-09 08:53:01 +02:00
kcm.h net: kcm: Fix race condition in kcm_unattach() 2025-08-13 18:18:33 -07:00
l3mdev.h net: l3mdev: use skb_dst_dev_rcu() in l3mdev_l3_out() 2026-02-02 17:09:11 -08:00
lag.h
lapb.h net: lapb: increase LAPB_HEADER_LEN 2024-12-06 17:43:08 -08:00
llc.h
llc_c_ac.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_ev.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_st.h llc: Constify struct llc_conn_state_trans 2024-07-15 08:51:01 -07:00
llc_conn.h llc: Check netns in llc_estab_match() and llc_listener_match(). 2023-07-20 10:46:28 +02:00
llc_if.h
llc_pdu.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h llc: Constify struct llc_sap_state_trans 2024-07-15 08:51:19 -07:00
llc_sap.h
lwtunnel.h net: dst: annotate data-races around dst->output 2025-07-02 14:32:30 -07:00
mac80211.h wifi: mac80211: allow key installation before association 2026-01-14 14:34:16 +01:00
mac802154.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
macsec.h net: macsec: Add endianness annotations in salt struct 2025-01-20 12:20:42 +00:00
mctp.h net: mctp: Allow limiting binds to a peer address 2025-07-15 12:08:39 +02:00
mctpdevice.h net: mctp: Expose transport binding identifier via IFLA attribute 2024-11-09 09:04:54 -08:00
mip6.h
mld.h
mpls.h
mpls_iptunnel.h
mptcp.h mptcp: sched: remove mptcp_sched_data 2025-04-15 08:21:46 -07:00
mrp.h
ncsi.h
ndisc.h net: replace ND_PRINTK with dynamic debug 2025-07-10 15:27:32 -07:00
neighbour.h neighbour: Convert rwlock of struct neigh_table to spinlock. 2025-10-24 17:57:20 -07:00
neighbour_tables.h neighbour: Create netdev->neighbour association 2024-11-09 13:22:57 -08:00
net_debug.h Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
net_failover.h
net_namespace.h vsock: add netns to vsock core 2026-01-27 10:45:38 +01:00
net_ratelimit.h
net_shaper.h net-shapers: implement NL get operation 2024-10-10 08:30:22 -07:00
net_trackers.h
netdev_lock.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-22 09:42:41 -07:00
netdev_netlink.h net: add granular lock for the netdev netlink socket 2025-03-12 13:32:35 -07:00
netdev_queues.h net: add queue config validation callback 2026-01-23 11:49:02 -08:00
netdev_rx_queue.h Revert "Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'" 2026-01-20 18:06:01 -08:00
netevent.h
netkit.h bpf, netkit: Add indirect call wrapper for fetching peer dev 2023-11-20 10:15:16 -08:00
netlabel.h Networking changes for 6.13. 2024-11-21 08:28:08 -08:00
netlink.h netlink: introduce type-checking attribute iteration for nlmsg 2025-07-02 15:39:04 -07:00
netmem.h net: inline get_netmem() and put_netmem() 2026-01-25 13:18:53 -08:00
netprio_cgroup.h
netrom.h
nexthop.h ipv6: Protect nh->f6i_list with spinlock and flag. 2025-04-24 09:29:56 +02:00
nl802154.h nl802154: fix some kernel-doc warnings 2025-10-20 17:13:40 -07:00
nsh.h net: NSH: fix kernel-doc notation warning 2023-07-14 20:39:29 -07:00
pfcp.h net: pfcp: fix typo in message_priority field name 2025-06-13 18:17:08 -07:00
pie.h pie: fix kernel-doc notation warning 2023-07-14 20:39:30 -07:00
ping.h net: Convert proto callbacks from sockaddr to sockaddr_unsized 2025-11-04 19:10:33 -08:00
pkt_cls.h net: sched: fix TCF_LAYER_TRANSPORT handling in tcf_get_base_ptr() 2025-11-24 18:53:14 -08:00
pkt_sched.h net_sched: add qdisc_dequeue_drop() helper 2025-11-25 16:10:32 +01:00
pptp.h
proto_memory.h net: Allow opt-out from global protocol memory accounting. 2025-10-16 12:04:47 -07:00
protocol.h ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata 2024-03-07 21:12:43 -08:00
psample.h net: psample: fix flag being set in wrong skb 2024-07-11 18:11:31 -07:00
psnap.h
psp.h psp: base PSP device support 2025-09-18 12:32:06 +02:00
raw.h net: use NUMA drop counters for softnet_data.dropped 2025-09-14 11:35:17 -07:00
rawv6.h
red.h net: sched: Correct spelling in headers 2024-08-26 09:37:23 -07:00
regulatory.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
request_sock.h tcp: Call tcp_syn_ack_timeout() directly. 2025-11-07 18:05:25 -08:00
rose.h net: rose: convert 'use' field to refcount_t 2025-08-27 07:43:08 -07:00
route.h net: use dst_dev_rcu() in sk_setup_caps() 2025-08-29 19:36:32 -07:00
rpl.h
rps.h net: Add rfs_needed() helper 2025-09-03 15:08:20 -07:00
rsi_91x.h rsi: remove kernel-doc comment marker 2023-07-14 20:39:30 -07:00
rstreason.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
rtnetlink.h rtnetlink: Remove "net" from newlink params 2025-02-21 15:28:03 -08:00
rtnh.h
sch_generic.h net_sched: add qdisc_dequeue_drop() helper 2025-11-25 16:10:32 +01:00
sch_priv.h net/sched: Export mq functions for reuse 2026-01-13 11:54:29 +01:00
scm.h af_unix/scm: fix whitespace errors 2025-07-04 09:32:35 +02:00
secure_seq.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
seg6.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_hmac.h ipv6: sr: Prepare HMAC key ahead of time 2025-08-26 18:11:29 -07:00
seg6_local.h seg6: Use nested-BH locking for seg6_bpf_srh_states. 2024-06-24 16:41:23 -07:00
selftests.h net: selftests: export packet creation helpers for driver use 2025-11-06 13:38:11 +01:00
slhc_vj.h
smc.h net/smc: bpf: Introduce generic hook for handshake flow 2025-11-10 11:19:41 -08:00
snmp.h net: snmp: remove SNMP_MIB_SENTINEL 2025-09-08 18:06:21 -07:00
sock.h tcp: reduce tcp sockets size by one cache line 2026-01-30 17:15:51 -08:00
sock_reuseport.h net: core: annotate socks of struct sock_reuseport with __counted_by 2024-08-02 17:16:59 -07:00
stp.h
strparser.h strparser: Remove unused __strp_unpause 2025-05-05 16:48:12 -07:00
switchdev.h net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tc_wrapper.h Merge branch 'x86/bugs' into x86/core, to pick up pending changes before dependent patches 2024-02-14 10:49:37 +01:00
tcp.h tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers 2026-02-03 15:13:24 +01:00
tcp_ao.h tcp: Free TCP-AO/TCP-MD5 info/keys without RCU 2025-09-11 19:05:56 -07:00
tcp_ecn.h tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers 2026-02-03 15:13:24 +01:00
tcp_states.h tcp: Dump bound-only sockets in inet_diag. 2023-12-04 14:45:26 -08:00
tcx.h bpf: Remove location field in tcx_link 2025-07-11 11:00:57 -07:00
timewait_sock.h tcp: Remove timewait_sock_ops.twsk_destructor(). 2025-08-25 17:53:35 -07:00
tipc.h
tls.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-10-31 06:46:03 -07:00
tls_prot.h net/tls: Add TLS Alert definitions 2023-07-28 14:07:59 -07:00
tls_toe.h
transp_v6.h inet6: Remove unused function declaration udpv6_connect() 2023-08-01 15:06:27 -07:00
tso.h
tun_proto.h
udp.h udp: udplite is unlikely 2026-01-06 17:06:03 -08:00
udp_tunnel.h geneve: expose gso partial features for tunnel offload 2026-01-23 11:31:14 -08:00
udplite.h udplite: fix various data-races 2023-09-14 16:16:36 +02:00
vsock_addr.h net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
vxlan.h vxlan: Support MC routing in the underlay 2025-06-17 18:18:46 -07:00
wext.h
x25.h net/x25: Remove unused x25_terminate_link() 2025-07-14 17:19:13 -07:00
x25device.h
xdp.h bpf-next-for-netdev 2025-09-24 10:22:37 -07:00
xdp_priv.h
xdp_sock.h xsk: add indirect call for xsk_destruct_skb 2025-11-11 10:21:08 +01:00
xdp_sock_drv.h Revert "Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'" 2026-01-20 18:06:01 -08:00
xfrm.h xfrm: Determine inner GSO type from packet inner protocol 2025-10-30 11:52:31 +01:00
xsk_buff_pool.h xsk: move cq_cached_prod_lock to avoid touching a cacheline in sending path 2026-01-15 10:07:45 +01:00