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 #ifdef CONFIG_LOCKDEP 32 int lockdep_hsr_is_held(spinlock_t *lock); 33 #else 34 #define lockdep_hsr_is_held(lock) 1 35 #endif 36 37 u32 hsr_mac_hash(struct hsr_priv *hsr, const unsigned char *addr); 38 struct hsr_node *hsr_node_get_first(struct hlist_head *head, spinlock_t *lock); 39 void hsr_del_self_node(struct hsr_priv *hsr); 40 void hsr_del_nodes(struct hlist_head *node_db); 41 struct hsr_node *hsr_get_node(struct hsr_port *port, struct hlist_head *node_db, 42 struct sk_buff *skb, bool is_sup, 43 enum hsr_port_type rx_port); 44 void hsr_handle_sup_frame(struct hsr_frame_info *frame); 45 bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr); 46 47 void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb); 48 void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb, 49 struct hsr_port *port); 50 51 void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port, 52 u16 sequence_nr); 53 int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node, 54 u16 sequence_nr); 55 56 void hsr_prune_nodes(struct timer_list *t); 57 58 int hsr_create_self_node(struct hsr_priv *hsr, 59 const unsigned char addr_a[ETH_ALEN], 60 const unsigned char addr_b[ETH_ALEN]); 61 62 void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos, 63 unsigned char addr[ETH_ALEN]); 64 65 int hsr_get_node_data(struct hsr_priv *hsr, 66 const unsigned char *addr, 67 unsigned char addr_b[ETH_ALEN], 68 unsigned int *addr_b_ifindex, 69 int *if1_age, 70 u16 *if1_seq, 71 int *if2_age, 72 u16 *if2_seq); 73 74 void prp_handle_san_frame(bool san, enum hsr_port_type port, 75 struct hsr_node *node); 76 void prp_update_san_info(struct hsr_node *node, bool is_sup); 77 78 struct hsr_node { 79 struct hlist_node mac_list; 80 unsigned char macaddress_A[ETH_ALEN]; 81 unsigned char macaddress_B[ETH_ALEN]; 82 /* Local slave through which AddrB frames are received from this node */ 83 enum hsr_port_type addr_B_port; 84 unsigned long time_in[HSR_PT_PORTS]; 85 bool time_in_stale[HSR_PT_PORTS]; 86 unsigned long time_out[HSR_PT_PORTS]; 87 /* if the node is a SAN */ 88 bool san_a; 89 bool san_b; 90 u16 seq_out[HSR_PT_PORTS]; 91 struct rcu_head rcu_head; 92 }; 93 94 #endif /* __HSR_FRAMEREG_H */ 95