Merge tag 'docs-5.15' of git://git.lwn.net/linux

[linux-2.6-microblaze.git] / Documentation / networking / mptcp-sysctl.rst

diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst
index 76d939e..b0d4da7 100644 (file)
--- a/Documentation/networking/mptcp-sysctl.rst
+++ b/Documentation/networking/mptcp-sysctl.rst
@@ -45,3 +45,15 @@ allow_join_initial_addr_port - BOOLEAN
        This is a per-namespace sysctl.
 
        Default: 1
+
+stale_loss_cnt - INTEGER
+       The number of MPTCP-level retransmission intervals with no traffic and
+       pending outstanding data on a given subflow required to declare it stale.
+       The packet scheduler ignores stale subflows.
+       A low stale_loss_cnt  value allows for fast active-backup switch-over,
+       an high value maximize links utilization on edge scenarios e.g. lossy
+       link with high BER or peer pausing the data processing.
+
+       This is a per-namespace sysctl.
+
+       Default: 4