hsr_main.h (9b031c86506cef9acae45e61339fcf9deaabb793) hsr_main.h (8f4c0e01789c18674acdf17cae3822b3dc3db715)
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
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.
6 */
7
8#ifndef __HSR_PRIVATE_H
9#define __HSR_PRIVATE_H
10
11#include <linux/netdevice.h>
12#include <linux/list.h>
13

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57 * equivalently, the 4 most significant bits of HSR tag byte 14).
58 *
59 * This is unclear in the IEC specification; its definition of MAC addresses
60 * indicates the spec is written with the least significant bit first (to the
61 * left). This, however, would mean that the LSDU field would be split in two
62 * with the path field in-between, which seems strange. I'm guessing the MAC
63 * address definition is in error.
64 */
8 */
9
10#ifndef __HSR_PRIVATE_H
11#define __HSR_PRIVATE_H
12
13#include <linux/netdevice.h>
14#include <linux/list.h>
15

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59 * equivalently, the 4 most significant bits of HSR tag byte 14).
60 *
61 * This is unclear in the IEC specification; its definition of MAC addresses
62 * indicates the spec is written with the least significant bit first (to the
63 * left). This, however, would mean that the LSDU field would be split in two
64 * with the path field in-between, which seems strange. I'm guessing the MAC
65 * address definition is in error.
66 */
65static inline u16 get_hsr_tag_path(struct hsr_tag *ht)
66{
67 return ntohs(ht->path_and_LSDU_size) >> 12;
68}
69
67
70static inline u16 get_hsr_tag_LSDU_size(struct hsr_tag *ht)
71{
72 return ntohs(ht->path_and_LSDU_size) & 0x0FFF;
73}
74
75static inline void set_hsr_tag_path(struct hsr_tag *ht, u16 path)
76{
77 ht->path_and_LSDU_size =
78 htons((ntohs(ht->path_and_LSDU_size) & 0x0FFF) | (path << 12));
79}
80
81static inline void set_hsr_tag_LSDU_size(struct hsr_tag *ht, u16 LSDU_size)
82{

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98 __u8 HSR_TLV_type;
99 __u8 HSR_TLV_length;
100} __packed;
101
102struct hsr_sup_payload {
103 unsigned char macaddress_A[ETH_ALEN];
104} __packed;
105
68static inline void set_hsr_tag_path(struct hsr_tag *ht, u16 path)
69{
70 ht->path_and_LSDU_size =
71 htons((ntohs(ht->path_and_LSDU_size) & 0x0FFF) | (path << 12));
72}
73
74static inline void set_hsr_tag_LSDU_size(struct hsr_tag *ht, u16 LSDU_size)
75{

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91 __u8 HSR_TLV_type;
92 __u8 HSR_TLV_length;
93} __packed;
94
95struct hsr_sup_payload {
96 unsigned char macaddress_A[ETH_ALEN];
97} __packed;
98
106static inline u16 get_hsr_stag_path(struct hsr_sup_tag *hst)
107{
108 return get_hsr_tag_path((struct hsr_tag *)hst);
109}
110
111static inline u16 get_hsr_stag_HSR_ver(struct hsr_sup_tag *hst)
112{
113 return get_hsr_tag_LSDU_size((struct hsr_tag *)hst);
114}
115
116static inline void set_hsr_stag_path(struct hsr_sup_tag *hst, u16 path)
117{
118 set_hsr_tag_path((struct hsr_tag *)hst, path);
119}
120
121static inline void set_hsr_stag_HSR_ver(struct hsr_sup_tag *hst, u16 HSR_ver)
122{
123 set_hsr_tag_LSDU_size((struct hsr_tag *)hst, HSR_ver);

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145
146struct hsr_port {
147 struct list_head port_list;
148 struct net_device *dev;
149 struct hsr_priv *hsr;
150 enum hsr_port_type type;
151};
152
99static inline void set_hsr_stag_path(struct hsr_sup_tag *hst, u16 path)
100{
101 set_hsr_tag_path((struct hsr_tag *)hst, path);
102}
103
104static inline void set_hsr_stag_HSR_ver(struct hsr_sup_tag *hst, u16 HSR_ver)
105{
106 set_hsr_tag_LSDU_size((struct hsr_tag *)hst, HSR_ver);

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128
129struct hsr_port {
130 struct list_head port_list;
131 struct net_device *dev;
132 struct hsr_priv *hsr;
133 enum hsr_port_type type;
134};
135
136/* used by driver internally to differentiate various protocols */
137enum hsr_version {
138 HSR_V0 = 0,
139 HSR_V1,
140 PRP_V1,
141};
142
153struct hsr_priv {
154 struct rcu_head rcu_head;
155 struct list_head ports;
156 struct list_head node_db; /* Known HSR nodes */
157 struct list_head self_node_db; /* MACs of slaves */
158 struct timer_list announce_timer; /* Supervision frame dispatch */
159 struct timer_list prune_timer;
160 int announce_count;
161 u16 sequence_nr;
162 u16 sup_sequence_nr; /* For HSRv1 separate seq_nr for supervision */
143struct hsr_priv {
144 struct rcu_head rcu_head;
145 struct list_head ports;
146 struct list_head node_db; /* Known HSR nodes */
147 struct list_head self_node_db; /* MACs of slaves */
148 struct timer_list announce_timer; /* Supervision frame dispatch */
149 struct timer_list prune_timer;
150 int announce_count;
151 u16 sequence_nr;
152 u16 sup_sequence_nr; /* For HSRv1 separate seq_nr for supervision */
163 u8 prot_version; /* Indicate if HSRv0 or HSRv1. */
153 enum hsr_version prot_version; /* Indicate if HSRv0, HSRv1 or PRPv1 */
164 spinlock_t seqnr_lock; /* locking for sequence_nr */
165 spinlock_t list_lock; /* locking for node list */
166 unsigned char sup_multicast_addr[ETH_ALEN];
167#ifdef CONFIG_DEBUG_FS
168 struct dentry *node_tbl_root;
169#endif
170};
171

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155 spinlock_t list_lock; /* locking for node list */
156 unsigned char sup_multicast_addr[ETH_ALEN];
157#ifdef CONFIG_DEBUG_FS
158 struct dentry *node_tbl_root;
159#endif
160};
161

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