From f086edef71be7174a16c1ed67ac65a085cda28b1 Mon Sep 17 00:00:00 2001 From: Kevin Yang Date: Mon, 3 Jun 2024 21:30:54 +0000 Subject: tcp: add sysctl_tcp_rto_min_us Adding a sysctl knob to allow user to specify a default rto_min at socket init time, other than using the hard coded 200ms default rto_min. Note that the rto_min route option has the highest precedence for configuring this setting, followed by the TCP_BPF_RTO_MIN socket option, followed by the tcp_rto_min_us sysctl. Signed-off-by: Kevin Yang Reviewed-by: Neal Cardwell Reviewed-by: Yuchung Cheng Reviewed-by: Eric Dumazet Reviewed-by: Tony Lu Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/net/netns/ipv4.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index c356c458b340..a91bb971f901 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -170,6 +170,7 @@ struct netns_ipv4 { u8 sysctl_tcp_sack; u8 sysctl_tcp_window_scaling; u8 sysctl_tcp_timestamps; + int sysctl_tcp_rto_min_us; u8 sysctl_tcp_recovery; u8 sysctl_tcp_thin_linear_timeouts; u8 sysctl_tcp_slow_start_after_idle; -- cgit v1.2.3