David Morley c57053bdc6 tcp: introduce per-route feature RTAX_FEATURE_ECN_LOW ... Define and implement a new per-route feature, RTAX_FEATURE_ECN_LOW. This feature indicates that the given destination network is a low-latency ECN environment, meaning both that ECN CE marks are applied by the network using a low-latency marking threshold and also that TCP endpoints provide precise per-data-segment ECN feedback in ACKs (where the ACK ECE flag echoes the received CE status of all newly-acknowledged data segments). This feature indication can be used by congestion control algorithms to decide how to interpret ECN signals over the given destination network. This feature is appropriate for datacenter-style ECN marking, such as the ECN marking approach expected by DCTCP or BBR congestion control modules. Signed-off-by: David Morley <morleyd@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Tested-by: David Morley <morleyd@google.com> Change-Id: I6bc06e9c6cb426fbae7243fc71c9a8c18175f5d3 Signed-off-by: Juhyung Park <qkrwngud825@gmail.com>		2024-12-18 15:06:30 +01:00
..
bpfilter
netfilter	Revert "netfilter: nf_tables: prevent nf_skb_duplicated corruption"	2024-11-24 00:23:12 +01:00
af_inet.c	net: inet: do not leave a dangling sk pointer in inet_create()	2024-12-17 13:24:30 +01:00
ah4.c
arp.c
bpf_tcp_ca.c
cipso_ipv4.c	cipso: fix total option length computation	2024-11-19 14:19:08 +01:00
datagram.c
devinet.c	Revert "ipv4: Check !in_dev earlier for ioctl(SIOCSIFADDR)."	2024-11-24 00:23:08 +01:00
esp4.c	Revert "net: esp: cleanup esp_output_tail_tcp() in case of unsupported ESPINTCP"	2024-11-24 00:23:57 +01:00
esp4_offload.c
fib_frontend.c	Revert "ipv4: Mask upper DSCP bits and ECN bits in NETLINK_FIB_LOOKUP family"	2024-11-24 00:23:08 +01:00
fib_lookup.h
fib_notifier.c
fib_rules.c
fib_semantics.c	net: Add l3mdev index to flow struct and avoid oif reset for port devices	2024-11-23 23:21:52 +01:00
fib_trie.c	net: Add l3mdev index to flow struct and avoid oif reset for port devices	2024-11-23 23:21:52 +01:00
fou.c	Revert "fou: remove sparse errors"	2024-11-24 00:23:41 +01:00
gre_demux.c
gre_offload.c	Revert "gro: remove rcu_read_lock/rcu_read_unlock from gro_receive handlers"	2024-11-24 00:23:41 +01:00
icmp.c
igmp.c
inet_connection_sock.c	tcp: properly terminate timers for kernel sockets	2024-11-19 09:22:44 +01:00
inet_diag.c	inet_diag: Initialize pad field in struct inet_diag_req_v2	2024-11-19 14:19:41 +01:00
inet_fragment.c	Revert "inet: inet_defrag: prevent sk release while still in use"	2024-11-24 00:23:32 +01:00
inet_hashtables.c	Revert "net: set SOCK_RCU_FREE before inserting socket into hashtable"	2024-11-24 00:23:47 +01:00
inet_timewait_sock.c	tcp: Fix NEW_SYN_RECV handling in inet_twsk_purge()	2024-11-19 11:32:40 +01:00
inetpeer.c
ip_forward.c
ip_fragment.c	Revert "inet: inet_defrag: prevent sk release while still in use"	2024-11-24 00:23:32 +01:00
ip_gre.c	Revert "ipv4: ip_gre: Fix drops of small packets in ipgre_xmit"	2024-11-24 00:23:12 +01:00
ip_input.c
ip_options.c
ip_output.c
ip_sockglue.c
ip_tunnel.c	net: Handle l3mdev in ip_tunnel_init_flow	2024-11-23 23:21:53 +01:00
ip_tunnel_core.c
ip_vti.c
ipcomp.c
ipconfig.c
ipip.c
ipmr.c	ipmr: fix tables suspicious RCU usage	2024-12-17 13:24:16 +01:00
ipmr_base.c	ipmr: Fix access to mfc_cache_list without lock held	2024-12-17 13:23:58 +01:00
Kconfig
Makefile
metrics.c
netfilter.c
netlink.c
nexthop.c	Revert "net: nexthop: Initialize all fields in dumped nexthops"	2024-11-24 00:23:55 +01:00
ping.c
proc.c
protocol.c
raw.c
raw_diag.c
route.c	Revert "ipv4: Fix incorrect source address in Record Route option"	2024-11-24 00:23:56 +01:00
syncookies.c
sysctl_net_ipv4.c	Revert "Make more sysctl constants read-only"	2024-12-03 19:56:17 +01:00
tcp.c	tcp: export TCPI_OPT_ECN_LOW in tcp_info tcpi_options field	2024-12-18 15:06:07 +01:00
tcp_bbr.c
tcp_bic.c
tcp_bpf.c	tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg	2024-12-17 13:24:27 +01:00
tcp_cdg.c
tcp_cong.c
tcp_cubic.c
tcp_dctcp.c	tcp: Fix shift-out-of-bounds in dctcp_update_alpha().	2024-11-19 12:27:09 +01:00
tcp_dctcp.h
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	Revert "tcp: fix to allow timestamp undo if no retransmits were sent"	2024-11-24 00:22:57 +01:00
tcp_ipv4.c	Revert "tcp: avoid reusing FIN_WAIT2 when trying to find port in connect() process"	2024-11-24 00:23:07 +01:00
tcp_lp.c
tcp_metrics.c	tcp_metrics: validate source addr length	2024-11-19 14:19:41 +01:00
tcp_minisocks.c	tcp: introduce per-route feature RTAX_FEATURE_ECN_LOW	2024-12-18 15:06:30 +01:00
tcp_nv.c
tcp_offload.c
tcp_output.c	tcp: introduce per-route feature RTAX_FEATURE_ECN_LOW	2024-12-18 15:06:30 +01:00
tcp_rate.c
tcp_recovery.c
tcp_scalable.c
tcp_timer.c	tcp: avoid too many retransmit packets	2024-11-19 14:19:44 +01:00
tcp_ulp.c
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c
udp.c	udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().	2024-11-19 14:19:43 +01:00
udp_bpf.c
udp_diag.c
udp_impl.h
udp_offload.c	Revert "fou: remove sparse errors"	2024-11-24 00:23:41 +01:00
udp_tunnel_core.c
udp_tunnel_nic.c
udp_tunnel_stub.c
udplite.c
xfrm4_input.c	xfrm: Preserve vlan tags for transport mode software GRO	2024-11-19 11:32:45 +01:00
xfrm4_output.c
xfrm4_policy.c	xfrm: respect ip protocols rules criteria when performing dst lookups	2024-11-23 23:22:00 +01:00
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c