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docs: networking: mptcp: Add MPTCP sysctl entries 

Describe the two MPTCP sysctls, what the values mean, and the default
settings.

Acked-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
zero-sugar-mainline-defconfig
Mat Martineau 2020-11-03 11:05:08 -08:00 committed by Jakub Kicinski
parent 93f323b9cc
commit 9ce7deff92
3 changed files with 28 additions and 0 deletions
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1
Documentation/networking/index.rst
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@ -70,6 +70,7 @@ Contents:
lapb-module
mac80211-injection
mpls-sysctl
mptcp-sysctl
multiqueue
netconsole
netdev-features

26
Documentation/networking/mptcp-sysctl.rst 100644
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@ -0,0 +1,26 @@
.. SPDX-License-Identifier: GPL-2.0
=====================
MPTCP Sysfs variables
=====================
/proc/sys/net/mptcp/* Variables
===============================
enabled - INTEGER
Control whether MPTCP sockets can be created.
MPTCP sockets can be created if the value is nonzero. This is
a per-namespace sysctl.
Default: 1
add_addr_timeout - INTEGER (seconds)
Set the timeout after which an ADD_ADDR control message will be
resent to an MPTCP peer that has not acknowledged a previous
ADD_ADDR message.
The default value matches TCP_RTO_MAX. This is a per-namespace
sysctl.
Default: 120

1
MAINTAINERS
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@ -12265,6 +12265,7 @@ L: mptcp@lists.01.org
S: Maintained
W: https://github.com/multipath-tcp/mptcp_net-next/wiki
B: https://github.com/multipath-tcp/mptcp_net-next/issues
F: Documentation/networking/mptcp-sysctl.rst
F: include/net/mptcp.h
F: include/uapi/linux/mptcp.h
F: net/mptcp/