Merge tag 'io_uring-6.6-2023-10-06' of git://git.kernel.dk/linux
[platform/kernel/linux-rpi.git] / net / hsr / hsr_framereg.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright 2011-2014 Autronica Fire and Security AS
3  *
4  * Author(s):
5  *      2011-2014 Arvid Brodin, arvid.brodin@alten.se
6  *
7  * include file for HSR and PRP.
8  */
9
10 #ifndef __HSR_FRAMEREG_H
11 #define __HSR_FRAMEREG_H
12
13 #include "hsr_main.h"
14
15 struct hsr_node;
16
17 struct hsr_frame_info {
18         struct sk_buff *skb_std;
19         struct sk_buff *skb_hsr;
20         struct sk_buff *skb_prp;
21         struct hsr_port *port_rcv;
22         struct hsr_node *node_src;
23         u16 sequence_nr;
24         bool is_supervision;
25         bool is_vlan;
26         bool is_local_dest;
27         bool is_local_exclusive;
28         bool is_from_san;
29 };
30
31 void hsr_del_self_node(struct hsr_priv *hsr);
32 void hsr_del_nodes(struct list_head *node_db);
33 struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
34                               struct sk_buff *skb, bool is_sup,
35                               enum hsr_port_type rx_port);
36 void hsr_handle_sup_frame(struct hsr_frame_info *frame);
37 bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr);
38
39 void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb);
40 void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
41                          struct hsr_port *port);
42
43 void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
44                            u16 sequence_nr);
45 int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
46                            u16 sequence_nr);
47
48 void hsr_prune_nodes(struct timer_list *t);
49
50 int hsr_create_self_node(struct hsr_priv *hsr,
51                          const unsigned char addr_a[ETH_ALEN],
52                          const unsigned char addr_b[ETH_ALEN]);
53
54 void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
55                         unsigned char addr[ETH_ALEN]);
56
57 int hsr_get_node_data(struct hsr_priv *hsr,
58                       const unsigned char *addr,
59                       unsigned char addr_b[ETH_ALEN],
60                       unsigned int *addr_b_ifindex,
61                       int *if1_age,
62                       u16 *if1_seq,
63                       int *if2_age,
64                       u16 *if2_seq);
65
66 void prp_handle_san_frame(bool san, enum hsr_port_type port,
67                           struct hsr_node *node);
68 void prp_update_san_info(struct hsr_node *node, bool is_sup);
69
70 struct hsr_node {
71         struct list_head        mac_list;
72         /* Protect R/W access to seq_out */
73         spinlock_t              seq_out_lock;
74         unsigned char           macaddress_A[ETH_ALEN];
75         unsigned char           macaddress_B[ETH_ALEN];
76         /* Local slave through which AddrB frames are received from this node */
77         enum hsr_port_type      addr_B_port;
78         unsigned long           time_in[HSR_PT_PORTS];
79         bool                    time_in_stale[HSR_PT_PORTS];
80         unsigned long           time_out[HSR_PT_PORTS];
81         /* if the node is a SAN */
82         bool                    san_a;
83         bool                    san_b;
84         u16                     seq_out[HSR_PT_PORTS];
85         bool                    removed;
86         struct rcu_head         rcu_head;
87 };
88
89 #endif /* __HSR_FRAMEREG_H */