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| author | Paolo Abeni <pabeni@redhat.com> | 2025-02-11 15:08:02 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-02-11 15:08:02 +0300 |
| commit | ae9b3c0e79bcc154f80f6e862d3085de31bcb3ce (patch) | |
| tree | a30101f515f68abb751a449a79570c0458059f11 /include/uapi/linux | |
| parent | 812122783ae8b347633b7359a71cfba28ffdb66b (diff) | |
| parent | 1280c26228bd7eb14bdecd67dedbdd871f8fdda5 (diff) | |
| download | linux-ae9b3c0e79bcc154f80f6e862d3085de31bcb3ce.tar.xz | |
Merge branch 'tcp-allow-to-reduce-max-rto'
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>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/tcp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index dbf896f3146c..32a27b4a5020 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -136,6 +136,7 @@ enum { #define TCP_AO_REPAIR 42 /* Get/Set SNEs and ISNs */ #define TCP_IS_MPTCP 43 /* Is MPTCP being used? */ +#define TCP_RTO_MAX_MS 44 /* max rto time in ms */ #define TCP_REPAIR_ON 1 #define TCP_REPAIR_OFF 0 |