mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-04 01:24:12 +08:00
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>
94 lines
2.7 KiB
C
94 lines
2.7 KiB
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_FRAMEREG_H
|
|
#define __HSR_FRAMEREG_H
|
|
|
|
#include "hsr_main.h"
|
|
|
|
struct hsr_node;
|
|
|
|
struct hsr_frame_info {
|
|
struct sk_buff *skb_std;
|
|
struct sk_buff *skb_hsr;
|
|
struct sk_buff *skb_prp;
|
|
struct hsr_port *port_rcv;
|
|
struct hsr_node *node_src;
|
|
u16 sequence_nr;
|
|
bool is_supervision;
|
|
bool is_vlan;
|
|
bool is_local_dest;
|
|
bool is_local_exclusive;
|
|
bool is_from_san;
|
|
};
|
|
|
|
void hsr_del_self_node(struct hsr_priv *hsr);
|
|
void hsr_del_nodes(struct list_head *node_db);
|
|
struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
|
|
struct sk_buff *skb, bool is_sup,
|
|
enum hsr_port_type rx_port);
|
|
void hsr_handle_sup_frame(struct hsr_frame_info *frame);
|
|
bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr);
|
|
|
|
void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb);
|
|
void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
|
|
struct hsr_port *port);
|
|
|
|
void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
|
|
u16 sequence_nr);
|
|
int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
|
|
u16 sequence_nr);
|
|
|
|
void hsr_prune_nodes(struct timer_list *t);
|
|
void hsr_prune_proxy_nodes(struct timer_list *t);
|
|
|
|
int hsr_create_self_node(struct hsr_priv *hsr,
|
|
const unsigned char addr_a[ETH_ALEN],
|
|
const unsigned char addr_b[ETH_ALEN]);
|
|
|
|
void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
|
|
unsigned char addr[ETH_ALEN]);
|
|
|
|
int hsr_get_node_data(struct hsr_priv *hsr,
|
|
const unsigned char *addr,
|
|
unsigned char addr_b[ETH_ALEN],
|
|
unsigned int *addr_b_ifindex,
|
|
int *if1_age,
|
|
u16 *if1_seq,
|
|
int *if2_age,
|
|
u16 *if2_seq);
|
|
|
|
void prp_handle_san_frame(bool san, enum hsr_port_type port,
|
|
struct hsr_node *node);
|
|
void prp_update_san_info(struct hsr_node *node, bool is_sup);
|
|
|
|
bool hsr_is_node_in_db(struct list_head *node_db,
|
|
const unsigned char addr[ETH_ALEN]);
|
|
|
|
struct hsr_node {
|
|
struct list_head mac_list;
|
|
/* Protect R/W access to seq_out */
|
|
spinlock_t seq_out_lock;
|
|
unsigned char macaddress_A[ETH_ALEN];
|
|
unsigned char macaddress_B[ETH_ALEN];
|
|
/* Local slave through which AddrB frames are received from this node */
|
|
enum hsr_port_type addr_B_port;
|
|
unsigned long time_in[HSR_PT_PORTS];
|
|
bool time_in_stale[HSR_PT_PORTS];
|
|
unsigned long time_out[HSR_PT_PORTS];
|
|
/* if the node is a SAN */
|
|
bool san_a;
|
|
bool san_b;
|
|
u16 seq_out[HSR_PT_PORTS];
|
|
bool removed;
|
|
struct rcu_head rcu_head;
|
|
};
|
|
|
|
#endif /* __HSR_FRAMEREG_H */
|