/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright 2011-2014 Autronica Fire and Security AS * * Author(s): * 2011-2014 Arvid Brodin, [email protected] * * include file for HSR and PRP. */ #ifndef __HSR_PRIVATE_H #define __HSR_PRIVATE_H #include <linux/netdevice.h> #include <linux/list.h> #include <linux/if_vlan.h> #include <linux/if_hsr.h> /* Time constants as specified in the HSR specification (IEC-62439-3 2010) * Table 8. * All values in milliseconds. */ #define HSR_LIFE_CHECK_INTERVAL … #define HSR_NODE_FORGET_TIME … #define HSR_PROXY_NODE_FORGET_TIME … #define HSR_ANNOUNCE_INTERVAL … #define HSR_ENTRY_FORGET_TIME … /* By how much may slave1 and slave2 timestamps of latest received frame from * each node differ before we notify of communication problem? */ #define MAX_SLAVE_DIFF … #define HSR_SEQNR_START … #define HSR_SUP_SEQNR_START … /* How often shall we check for broken ring and remove node entries older than * HSR_NODE_FORGET_TIME? */ #define PRUNE_PERIOD … #define PRUNE_PROXY_PERIOD … #define HSR_TLV_EOT … #define HSR_TLV_ANNOUNCE … #define HSR_TLV_LIFE_CHECK … /* PRP V1 life check for Duplicate discard */ #define PRP_TLV_LIFE_CHECK_DD … /* PRP V1 life check for Duplicate Accept */ #define PRP_TLV_LIFE_CHECK_DA … /* PRP V1 life redundancy box MAC address */ #define PRP_TLV_REDBOX_MAC … #define HSR_V1_SUP_LSDUSIZE … /* The helper functions below assumes that 'path' occupies the 4 most * significant bits of the 16-bit field shared by 'path' and 'LSDU_size' (or * equivalently, the 4 most significant bits of HSR tag byte 14). * * This is unclear in the IEC specification; its definition of MAC addresses * indicates the spec is written with the least significant bit first (to the * left). This, however, would mean that the LSDU field would be split in two * with the path field in-between, which seems strange. I'm guessing the MAC * address definition is in error. */ static inline void set_hsr_tag_path(struct hsr_tag *ht, u16 path) { … } static inline void set_hsr_tag_LSDU_size(struct hsr_tag *ht, u16 LSDU_size) { … } struct hsr_ethhdr { … } __packed; struct hsr_vlan_ethhdr { … } __packed; struct hsr_sup_tlv { … } __packed; /* HSR/PRP Supervision Frame data types. * Field names as defined in the IEC:2010 standard for HSR. */ struct hsr_sup_tag { … } __packed; struct hsr_sup_payload { … } __packed; static inline void set_hsr_stag_path(struct hsr_sup_tag *hst, u16 path) { … } static inline void set_hsr_stag_HSR_ver(struct hsr_sup_tag *hst, u16 HSR_ver) { … } struct hsrv0_ethhdr_sp { … } __packed; struct hsrv1_ethhdr_sp { … } __packed; enum hsr_port_type { … }; /* PRP Redunancy Control Trailor (RCT). * As defined in IEC-62439-4:2012, the PRP RCT is really { sequence Nr, * Lan indentifier (LanId), LSDU_size and PRP_suffix = 0x88FB }. * * Field names as defined in the IEC:2012 standard for PRP. */ struct prp_rct { … } __packed; static inline u16 get_prp_LSDU_size(struct prp_rct *rct) { … } static inline void set_prp_lan_id(struct prp_rct *rct, u16 lan_id) { … } static inline void set_prp_LSDU_size(struct prp_rct *rct, u16 LSDU_size) { … } struct hsr_port { … }; struct hsr_frame_info; struct hsr_node; struct hsr_proto_ops { … }; struct hsr_self_node { … }; struct hsr_priv { … }; #define hsr_for_each_port(hsr, port) … struct hsr_port *hsr_port_get_hsr(struct hsr_priv *hsr, enum hsr_port_type pt); /* Caller must ensure skb is a valid HSR frame */ static inline u16 hsr_get_skb_sequence_nr(struct sk_buff *skb) { … } static inline struct prp_rct *skb_get_PRP_rct(struct sk_buff *skb) { … } /* Assume caller has confirmed this skb is PRP suffixed */ static inline u16 prp_get_skb_sequence_nr(struct prp_rct *rct) { … } /* assume there is a valid rct */ static inline bool prp_check_lsdu_size(struct sk_buff *skb, struct prp_rct *rct, bool is_sup) { … } #if IS_ENABLED(CONFIG_DEBUG_FS) void hsr_debugfs_rename(struct net_device *dev); void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev); void hsr_debugfs_term(struct hsr_priv *priv); void hsr_debugfs_create_root(void); void hsr_debugfs_remove_root(void); #else static inline void hsr_debugfs_rename(struct net_device *dev) { } static inline void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev) {} static inline void hsr_debugfs_term(struct hsr_priv *priv) {} static inline void hsr_debugfs_create_root(void) {} static inline void hsr_debugfs_remove_root(void) {} #endif #endif /* __HSR_PRIVATE_H */
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