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diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst
index b0d4da71e68e..e263dfcc4b40 100644
--- a/Documentation/networking/mptcp-sysctl.rst
+++ b/Documentation/networking/mptcp-sysctl.rst
@@ -46,6 +46,24 @@ allow_join_initial_addr_port - BOOLEAN
Default: 1
+pm_type - INTEGER
+
+ Set the default path manager type to use for each new MPTCP
+ socket. In-kernel path management will control subflow
+ connections and address advertisements according to
+ per-namespace values configured over the MPTCP netlink
+ API. Userspace path management puts per-MPTCP-connection subflow
+ connection decisions and address advertisements under control of
+ a privileged userspace program, at the cost of more netlink
+ traffic to propagate all of the related events and commands.
+
+ This is a per-namespace sysctl.
+
+ * 0 - In-kernel path manager
+ * 1 - Userspace path manager
+
+ Default: 0
+
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.