summaryrefslogtreecommitdiffstats
path: root/net/hsr/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'net/hsr/Kconfig')
-rw-r--r--net/hsr/Kconfig40
1 files changed, 40 insertions, 0 deletions
diff --git a/net/hsr/Kconfig b/net/hsr/Kconfig
new file mode 100644
index 0000000000..1b048c17b6
--- /dev/null
+++ b/net/hsr/Kconfig
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# IEC 62439-3 High-availability Seamless Redundancy
+#
+
+config HSR
+ tristate "High-availability Seamless Redundancy (HSR & PRP)"
+ help
+ This enables IEC 62439 defined High-availability Seamless
+ Redundancy (HSR) and Parallel Redundancy Protocol (PRP).
+
+ If you say Y here, then your Linux box will be able to act as a
+ DANH ("Doubly attached node implementing HSR") or DANP ("Doubly
+ attached node implementing PRP"). For this to work, your Linux box
+ needs (at least) two physical Ethernet interfaces.
+
+ For DANH, 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.
+
+ For DANP, it must be connected as a node connecting to two
+ separate networks over the two slave interfaces. Like HSR, Ethernet
+ frames sent over the PRP device will be sent to both networks giving
+ a redundant, instant fail-over network. Unlike HSR, PRP networks
+ can have Singly Attached Nodes (SAN) such as PC, printer, bridges
+ etc and will be able to communicate with DANP nodes.
+
+ This code is a "best effort" to comply with the HSR standard as
+ described in IEC 62439-3:2010 (HSRv0) and IEC 62439-3:2012 (HSRv1),
+ and PRP standard described in IEC 62439-4:2012 (PRP), but no
+ compliancy tests have been made. Use iproute2 to select the protocol
+ you would like to use.
+
+ You need to perform any and all necessary tests yourself before
+ relying on this code in a safety critical system!
+
+ If unsure, say N.