Merge branch 'tcp-allow-to-reduce-max-rto'

Browse source

Eric Dumazet says:

====================
tcp: allow to reduce max RTO

This is a followup of a discussion started 6 months ago
by Jason Xing.

Some applications want to lower the time between each
retransmit attempts.

TCP_KEEPINTVL and TCP_KEEPCNT socket options don't
work around the issue.

This series adds:

- a new TCP level socket option (TCP_RTO_MAX_MS)
- a new sysctl (/proc/sys/net/ipv4/tcp_rto_max_ms)

Admins and/or applications can now change the max rto value
at their own risk.

Link: https://lore.kernel.org/netdev/20240715033118.32322-1-kerneljasonxing@gmail.com/T/
====================

Link: https://patch.msgid.link/20250207152830.2527578-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

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

parent 812122783a 1280c26228

commit ae9b3c0e79

14 changed files with 93 additions and 49 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

13

Documentation/networking/ip-sysctl.rst

View file

1

Documentation/networking/net_cachelines/inet_connection_sock.rst

View file

1

Documentation/networking/net_cachelines/netns_ipv4_sysctl.rst

View file

1

include/net/inet_connection_sock.h

View file

1

include/net/netns/ipv4.h

View file

23

include/net/tcp.h

View file

1

include/uapi/linux/tcp.h

View file

10

net/ipv4/sysctl_net_ipv4.c

View file

14

net/ipv4/tcp.c

View file

4

net/ipv4/tcp_fastopen.c

View file

19

net/ipv4/tcp_input.c

View file

6

net/ipv4/tcp_ipv4.c

View file

17

net/ipv4/tcp_output.c

View file

31

net/ipv4/tcp_timer.c

View file