mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
5055cccfc2
Introduce RedBox support (HSR-SAN to be more precise) for HSR networks.
Following traffic reduction optimizations have been implemented:
- Do not send HSR supervisory frames to Port C (interlink)
- Do not forward to HSR ring frames addressed to Port C
- Do not forward to Port C frames from HSR ring
- Do not send duplicate HSR frame to HSR ring when destination is Port C
The corresponding patch to modify iptable2 sources has already been sent:
https://lore.kernel.org/netdev/20240308145729.490863-1-lukma@denx.de/T/
Testing procedure (veth and netns):
-----------------------------------
One shall run:
linux-vanila/tools/testing/selftests/net/hsr/hsr_redbox.sh
(Detailed description of the setup one can find in the test
script file).
Testing procedure (real hardware):
----------------------------------
The EVB-KSZ9477 has been used for testing on net-next branch
(SHA1: 5fc68320c1).
Ports 4/5 were used for SW managed HSR (hsr1) as first hsr0 for ports 1/2
(with HW offloading for ksz9477) was created. Port 3 has been used as
interlink port (single USB-ETH dongle).
Configuration - RedBox (EVB-KSZ9477):
if link set lan1 down;ip link set lan2 down
ip link add name hsr0 type hsr slave1 lan1 slave2 lan2 supervision 45 version 1
ip link add name hsr1 type hsr slave1 lan4 slave2 lan5 interlink lan3 supervision 45 version 1
ip link set lan4 up;ip link set lan5 up
ip link set lan3 up
ip addr add 192.168.0.11/24 dev hsr1
ip link set hsr1 up
Configuration - DAN-H (EVB-KSZ9477):
ip link set lan1 down;ip link set lan2 down
ip link add name hsr0 type hsr slave1 lan1 slave2 lan2 supervision 45 version 1
ip link add name hsr1 type hsr slave1 lan4 slave2 lan5 supervision 45 version 1
ip link set lan4 up;ip link set lan5 up
ip addr add 192.168.0.12/24 dev hsr1
ip link set hsr1 up
This approach uses only SW based HSR devices (hsr1).
-------------- ----------------- ------------
DAN-H Port5 | <------> | Port5 | |
Port4 | <------> | Port4 Port3 | <---> | PC
| | (RedBox) | | (USB-ETH)
EVB-KSZ9477 | | EVB-KSZ9477 | |
-------------- ----------------- ------------
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
24 lines
722 B
C
24 lines
722 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright 2011-2014 Autronica Fire and Security AS
|
|
*
|
|
* Author(s):
|
|
* 2011-2014 Arvid Brodin, arvid.brodin@alten.se
|
|
*
|
|
* include file for HSR and PRP.
|
|
*/
|
|
|
|
#ifndef __HSR_DEVICE_H
|
|
#define __HSR_DEVICE_H
|
|
|
|
#include <linux/netdevice.h>
|
|
#include "hsr_main.h"
|
|
|
|
void hsr_del_ports(struct hsr_priv *hsr);
|
|
void hsr_dev_setup(struct net_device *dev);
|
|
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
|
|
struct net_device *interlink, unsigned char multicast_spec,
|
|
u8 protocol_version, struct netlink_ext_ack *extack);
|
|
void hsr_check_carrier_and_operstate(struct hsr_priv *hsr);
|
|
int hsr_get_max_mtu(struct hsr_priv *hsr);
|
|
#endif /* __HSR_DEVICE_H */
|