1 # SPDX-License-Identifier: GPL-2.0-only
2 #
3 # IEC 62439-3 High-availability Seamless Redun
4 #
5
6 config HSR
7 tristate "High-availability Seamless R
8 help
9 This enables IEC 62439 defined High-
10 Redundancy (HSR) and Parallel Redund
11
12 If you say Y here, then your Linux b
13 DANH ("Doubly attached node implemen
14 attached node implementing PRP"). Fo
15 needs (at least) two physical Ethern
16
17 For DANH, it must be connected as a
18 with other HSR capable nodes. All Et
19 device will be sent in both directio
20 ports), giving a redundant, instant
21 in the ring acts like a bridge for H
22 that have been forwarded earlier.
23
24 For DANP, it must be connected as a
25 separate networks over the two slave
26 frames sent over the PRP device will
27 a redundant, instant fail-over netwo
28 can have Singly Attached Nodes (SAN)
29 etc and will be able to communicate
30
31 This code is a "best effort" to comp
32 described in IEC 62439-3:2010 (HSRv0
33 and PRP standard described in IEC 62
34 compliancy tests have been made. Use
35 you would like to use.
36
37 You need to perform any and all nece
38 relying on this code in a safety cri
39
40 If unsure, say N.
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