Eric Dumazet 1280c26228 tcp: add tcp_rto_max_ms sysctl ...

Previous patch added a TCP_RTO_MAX_MS socket option
to tune a TCP socket max RTO value.

Many setups prefer to change a per netns sysctl.

This patch adds /proc/sys/net/ipv4/tcp_rto_max_ms

Its initial value is 120000 (120 seconds).

Keep in mind that a decrease of tcp_rto_max_ms
means shorter overall timeouts, unless tcp_retries2
sysctl is increased.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

2025-02-11 13:08:00 +01:00

..

bpf.h

bpf: Invert the dependency between bpf-netns.h and netns/bpf.h

2021-12-29 20:03:05 -08:00

can.h

net: add missing includes and forward declarations under net/

2022-07-22 12:53:22 +01:00

conntrack.h

netfilter: conntrack: switch connlabels to atomic_t

2023-10-24 13:16:30 +02:00

core.h

net-timestamp: namespacify the sysctl_tstamp_allow_data

2024-10-08 15:33:11 -07:00

flow_table.h

netfilter: nf_flow_table: count pending offload workqueue tasks

2022-07-11 16:25:14 +02:00

generic.h

netns: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

2022-09-28 18:51:47 -07:00

hash.h

netns: provide pure entropy for net_hash_mix()

2019-03-28 17:00:45 -07:00

ieee802154_6lowpan.h

net: dynamically allocate fqdir structures

2019-05-26 14:08:05 -07:00

ipv4.h

tcp: add tcp_rto_max_ms sysctl

2025-02-11 13:08:00 +01:00

ipv6.h

net/ipv6: convert skip_notify_on_dev_down sysctl to u8

2023-06-02 22:55:43 -07:00

mctp.h

net: add missing includes and forward declarations under net/

2022-07-22 12:53:22 +01:00

mib.h

net: reorganize fields in netns_mib

2021-04-02 14:31:44 -07:00

mpls.h

net: add missing includes and forward declarations under net/

2022-07-22 12:53:22 +01:00

netfilter.h

netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core

2024-06-19 18:41:59 +02:00

nexthop.h

net: add missing includes and forward declarations under net/

2022-07-22 12:53:22 +01:00

nftables.h

net: Remove leftover include from nftables.h

2023-08-13 14:55:25 +01:00

packet.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sctp.h

net: Correct spelling in headers

2024-08-26 09:37:23 -07:00

smc.h

net/smc: add sysctl for max conns per lgr for SMC-R v2.1

2023-11-24 12:13:14 +00:00

unix.h

net: add missing includes and forward declarations under net/

2022-07-22 12:53:22 +01:00

xdp.h

net: xsk: Don't include <linux/rculist.h>

2022-12-06 20:04:34 -08:00

xfrm.h

xfrm: Add an inbound percpu state cache.

2024-10-29 11:56:18 +01:00