[FAQ] PROCESSOR-SDK-AM57X: SDK 8.2 HSR/PRP Configure offload features to PRU-ICSS modules

Josue Zamitiz-Ayala

Tool/software:

The AM57x 8.2 SDK does not correctly document how to set up the functionality for these features. Original documentation: https://software-dl.ti.com/processor-sdk-linux/esd/AM57X/08_02_01_00/exports/docs/linux/Industrial_Protocols_HSR_PRP.html#getting-started

The following instructions were run on the default 8.2 SDK:

1 month ago

0 Josue Zamitiz-Ayala 1 month ago

TI__Mastermind 32155 points

To try out HSR/PRP (assuming two supported platforms are set up already, and PRU-ICSS ports are eth1/eth2):

1 ) Connect the PRU-ICSS ports between devices, eth1 to eth1 and eth2 to eth2. (This acts as a 2 node ring for HSR, or a 2 node point-to-point for PRP)

2 ) Configure ports to have the same MAC address

ifconfig eth1 0.0.0.0 down && ifconfig eth2 0.0.0.0 down
ifconfig eth1 hw ether 70:FF:76:1C:0E:8C && ifconfig eth2 hw ether 70:FF:76:1C:0E:8C

3 ) Configure offload feature, and create HSR/PRP interface

(for HSR)

ethtool -K eth1 hsr-fwd-offload on on && ethtool -K eth2 hsr-fwd-offload on
ethtool -K eth1 hsr-tag-rm-offload on on && ethtool -K eth2 hsr-tag-rm-offload on
ip link add name hsr0 type hsr slave1 eth1 slave2 eth2 supervision 45 version 1
ifconfig eth1 up && ifconfig eth2 up
ifconfig hsr0 192.168.2.20

(for PRP)

ethtool -K eth1 hsr-fwd-offload on on && ethtool -K eth2 hsr-fwd-offload on
ethtool -K eth1 hsr-tag-rm-offload on on && ethtool -K eth2 hsr-tag-rm-offload on
ip link add name hsr0 type hsr slave1 eth1 slave2 eth2 supervision 45 proto 1
ifconfig eth1 up && ifconfig eth2 up
ifconfig prp0 192.168.2.20

4 ) Attempt to ping from one device to the other, and try disconnecting a link. The connection will continue without loss.

Best,

Josue

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[FAQ] PROCESSOR-SDK-AM57X: SDK 8.2 HSR/PRP Configure offload features to PRU-ICSS modules