summaryrefslogtreecommitdiff
path: root/include/net
diff options
context:
space:
mode:
authorKevin Yang <yyd@google.com>2024-06-03 21:30:54 +0000
committerDavid S. Miller <davem@davemloft.net>2024-06-05 13:42:54 +0100
commitf086edef71be7174a16c1ed67ac65a085cda28b1 (patch)
tree3af89709786e212616a07d06b4c0a184efdfce49 /include/net
parent512bd0f9f926a05c724a9fd72bc4e14213845e01 (diff)
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 <yyd@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Yuchung Cheng <ycheng@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netns/ipv4.h1
1 files changed, 1 insertions, 0 deletions
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;