--- zzzz-none-000/linux-4.19.183/Documentation/networking/ip-sysctl.txt	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/Documentation/networking/ip-sysctl.txt	2023-06-28 08:54:18.000000000 +0000
@@ -763,6 +763,20 @@
 	in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks)
 	Default: 100
 
+#if defined(CONFIG_BCM_KF_MPTCP) && defined(CONFIG_BCM_MPTCP)
+MPTCP variables:
+
+mptcp_enabled - INTEGER
+	Enable or disable Multipath TCP for new connections.
+	Possible values are:
+
+	0: Multipath TCP is disabled on all TCP-sockets that are newly created.
+	1: Multipath TCP is enabled by default on all new TCP-sockets. Note that
+	   existing sockets in LISTEN-state will still use regular TCP.
+	2: Enables Multipath TCP only upon the request of the application
+	   throught the socket-option MPTCP_ENABLED.
+
+#endif
 UDP variables:
 
 udp_l3mdev_accept - BOOLEAN