File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/net/hsr/Kconfig b/net/hsr/Kconfig
new file mode 100644
index 0000000..0d3d709
--- /dev/null
+++ b/net/hsr/Kconfig
@@ -0,0 +1,27 @@
+#
+# IEC 62439-3 High-availability Seamless Redundancy
+#
+
+config HSR
+ tristate "High-availability Seamless Redundancy (HSR)"
+ ---help---
+ If you say Y here, then your Linux box will be able to act as a
+ DANH ("Doubly attached node implementing HSR"). For this to work,
+ your Linux box needs (at least) two physical Ethernet interfaces,
+ and it must be connected as a node in a ring network together with
+ other HSR capable nodes.
+
+ All Ethernet frames sent over the hsr device will be sent in both
+ directions on the ring (over both slave ports), giving a redundant,
+ instant fail-over network. Each HSR node in the ring acts like a
+ bridge for HSR frames, but filters frames that have been forwarded
+ earlier.
+
+ This code is a "best effort" to comply with the HSR standard as
+ described in IEC 62439-3:2010 (HSRv0), but no compliancy tests have
+ been made.
+
+ You need to perform any and all necessary tests yourself before
+ relying on this code in a safety critical system!
+
+ If unsure, say N.