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8ae3e8e6ceedfb3cf74ca18169c942e073586a39
linux/net
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Chia-Yu Chang 8ae3e8e6ce tcp: accecn: enable AccECN 
Enable Accurate ECN negotiation and request for incoming and
outgoing connection by setting sysctl_tcp_ecn:

+==============+===========================================+
|              |  Highest ECN variant (Accurate ECN, ECN,  |
|   tcp_ecn    |  or no ECN) to be negotiated & requested  |
|              +---------------------+---------------------+
|              | Incoming connection | Outgoing connection |
+==============+=====================+=====================+
|      0       |        No ECN       |        No ECN       |
|      1       |         ECN         |         ECN         |
|      2       |         ECN         |        No ECN       |
+--------------+---------------------+---------------------+
|      3       |     Accurate ECN    |     Accurate ECN    |
|      4       |     Accurate ECN    |         ECN         |
|      5       |     Accurate ECN    |        No ECN       |
+==============+=====================+=====================+

Refer Documentation/networking/ip-sysctl.rst for more details.

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/20260131222515.8485-15-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-02-03 15:13:25 +01:00
..
6lowpan
net: replace ND_PRINTK with dynamic debug
2025-07-10 15:27:32 -07:00
9p
Merge tag '9p-for-6.19-rc1' of https://github.com/martinetd/linux
2025-12-07 08:29:09 -08:00
802
net: remove HIPPI support and RoadRunner HIPPI driver
2026-01-20 19:12:06 -08:00
8021q
net: vlan: sync VLAN features with lower device
2025-10-31 17:42:35 -07:00
appletalk
net: Convert proto_ops connect() callbacks to use sockaddr_unsized
2025-11-04 19:10:32 -08:00
atm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-11-27 12:19:08 -08:00
ax25
net: ax25: remove plumbing for never-implemented DAMA Master support
2026-01-30 19:19:39 -08:00
batman-adv
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-10-31 06:46:03 -07:00
bluetooth
Bluetooth: L2CAP: Fix not tracking outstanding TX ident
2026-01-29 13:36:35 -05:00
bpf
bpf: Fix reference count leak in bpf_prog_test_run_xdp()
2026-01-12 16:37:40 -08:00
bridge
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-01-29 17:28:54 -08:00
caif
caif: fix integer underflow in cffrml_receive()
2025-12-11 01:35:41 -08:00
can
net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
2026-01-15 09:52:39 +01:00
ceph
libceph: make calc_target() set t->paused, not just clear it
2026-01-06 00:39:43 +01:00
core
tcp: reduce tcp sockets size by one cache line
2026-01-30 17:15:51 -08:00
dcb
Revert "Documentation: net: add flow control guide and document ethtool API"
2025-10-01 09:48:21 +02:00
devlink
devlink: Refactor devlink_rate_nodes_check
2026-02-02 20:05:51 -08:00
dns_resolver
net/dns_resolver: use credential guards in dns_query()
2025-11-04 12:36:51 +01:00
dsa
net: dsa: tag_yt921x: add priority support
2026-02-03 15:09:31 +01:00
ethernet
net: optimize eth_type_trans() vs CONFIG_STACKPROTECTOR_STRONG=y
2025-11-24 19:27:31 -08:00
ethtool
ethtool: remove ETHTOOL_GRXRINGS fallback through get_rxnfc
2026-01-27 17:32:56 -08:00
handshake
net/handshake: Fix null-ptr-deref in handshake_complete()
2025-12-22 12:36:40 +01:00
hsr
net/hsr: fix NULL pointer dereference in prp_get_untagged_frame()
2025-12-04 11:15:13 +01:00
ieee802154
net: Convert proto callbacks from sockaddr to sockaddr_unsized
2025-11-04 19:10:33 -08:00
ife
…
ipv4
tcp: accecn: enable AccECN
2026-02-03 15:13:25 +01:00
ipv6
ipv6: colocate inet6_cork in inet_cork_full
2026-02-02 17:49:30 -08:00
iucv
net: Remove KMSG_COMPONENT macro
2025-11-28 19:20:27 -08:00
kcm
Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-12-03 17:24:33 -08:00
key
pfkey: Deprecate pfkey
2025-10-30 09:03:12 +01:00
l2tp
l2tp: avoid one data-race in l2tp_tunnel_del_work()
2026-01-19 09:55:41 -08:00
l3mdev
net: fib_rules: Fix iif / oif matching on L3 master device
2025-04-15 17:54:56 -07:00
lapb
treewide, timers: Rename from_timer() to timer_container_of()
2025-06-08 09:07:37 +02:00
llc
net: Convert proto_ops connect() callbacks to use sockaddr_unsized
2025-11-04 19:10:32 -08:00
mac80211
Merge tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
2026-01-29 19:17:43 -08:00
mac802154
mac802154: Switch to use hrtimer_setup()
2025-02-18 10:35:44 +01:00
mctp
net: mctp: test: move TX packetqueue from dst to dev
2025-12-01 13:52:13 -08:00
mpls
mpls: Drop RTNL for RTM_NEWROUTE, RTM_DELROUTE, and RTM_GETROUTE.
2025-11-03 17:40:54 -08:00
mptcp
mptcp: implement .splice_read
2026-02-02 18:15:32 -08:00
ncsi
net: ncsi: Fix buffer overflow in fetching version id
2025-06-12 18:21:59 -07:00
netfilter
netfilter: nfnetlink_queue: optimize verdict lookup with hash table
2026-01-29 09:52:07 +01:00
netlabel
audit: add record for multiple task security contexts
2025-08-30 10:15:30 -04:00
netlink
net: Convert proto_ops connect() callbacks to use sockaddr_unsized
2025-11-04 19:10:32 -08:00
netrom
netrom: fix double-free in nr_route_frame()
2026-01-20 19:15:40 -08:00
nfc
nfc: nci: Fix race between rfkill and nci_unregister_device().
2026-01-28 19:32:26 -08:00
nsh
…
openvswitch
net: openvswitch: fix data race in ovs_vport_get_upcall_stats
2026-01-22 12:55:22 +01:00
packet
net: Convert struct sockaddr to fixed-size "sa_data[14]"
2025-11-04 19:10:33 -08:00
phonet
net: Convert proto callbacks from sockaddr to sockaddr_unsized
2025-11-04 19:10:33 -08:00
psample
…
psp
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
qrtr
net: Convert proto_ops connect() callbacks to use sockaddr_unsized
2025-11-04 19:10:32 -08:00
rds
net/rds: rds_tcp_accept_one ought to not discard messages
2026-01-23 11:51:31 -08:00
rfkill
net: replace use of system_wq with system_percpu_wq
2025-09-22 17:40:30 -07:00
rose
net: rose: fix invalid array index in rose_kill_by_device()
2025-12-30 11:45:51 +01:00
rxrpc
rxrpc: Fix data-race warning and potential load/store tearing
2026-01-21 19:59:29 -08:00
sched
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-01-22 20:14:36 -08:00
sctp
sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT
2026-01-17 15:10:34 -08:00
shaper
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
smc
Revert "net/smc: Introduce TCP ULP support"
2026-01-30 19:21:51 -08:00
strparser
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-11-13 12:35:38 -08:00
sunrpc
Merge tag 'nfsd-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2025-12-24 09:23:04 -08:00
switchdev
net: switchdev: Convert blocking notification chain to a raw one
2025-03-11 11:30:28 +01:00
tipc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-11-13 12:35:38 -08:00
tls
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-10-31 06:46:03 -07:00
unix
net: do not write to msg_get_inq in callee
2026-01-08 08:45:13 -08:00
vmw_vsock
vsock: add netns support to virtio transports
2026-01-27 10:45:38 +01:00
wireless
Merge tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
2026-01-29 19:17:43 -08:00
x25
net: Convert proto_ops connect() callbacks to use sockaddr_unsized
2025-11-04 19:10:32 -08:00
xdp
Revert "Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'"
2026-01-20 18:06:01 -08:00
xfrm
xfrm: set ipv4 no_pmtu_disc flag only on output sa when direction is set
2025-12-15 11:06:25 +01:00
compat.c
socket: Unify getsockname and getpeername implementation
2025-11-26 13:45:23 -07:00
devres.c
…
Kconfig
net: Kconfig: discourage drop_monitor enablement
2025-10-17 16:29:26 -07:00
Kconfig.debug
…
Makefile
psp: base PSP device support
2025-09-18 12:32:06 +02:00
socket.c
Merge tag 'vfs-6.19-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-05 15:52:30 -08:00
sysctl_net.c
…