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linux
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include
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net
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switchdev.h
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356 lines (307 loc) · 9.39 KB
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linux
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switchdev.h
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/* * include/net/switchdev.h - Switch device API * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us> * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef _LINUX_SWITCHDEV_H_ #define _LINUX_SWITCHDEV_H_ #include <linux/netdevice.h> #include <linux/notifier.h> #include <linux/list.h> #include <net/ip_fib.h> #define SWITCHDEV_F_NO_RECURSE BIT(0) #define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1) #define SWITCHDEV_F_DEFER BIT(2) struct switchdev_trans_item { struct list_head list; void *data; void (*destructor)(const void *data); }; struct switchdev_trans { struct list_head item_list; bool ph_prepare; }; static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans) { return trans && trans->ph_prepare; } static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans) { return trans && !trans->ph_prepare; } enum switchdev_attr_id { SWITCHDEV_ATTR_ID_UNDEFINED, SWITCHDEV_ATTR_ID_PORT_PARENT_ID, SWITCHDEV_ATTR_ID_PORT_STP_STATE, SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, }; struct switchdev_attr { struct net_device *orig_dev; enum switchdev_attr_id id; u32 flags; void *complete_priv; void (*complete)(struct net_device *dev, int err, void *priv); union { struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ u8 stp_state; /* PORT_STP_STATE */ unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ clock_t ageing_time; /* BRIDGE_AGEING_TIME */ bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ } u; }; enum switchdev_obj_id { SWITCHDEV_OBJ_ID_UNDEFINED, SWITCHDEV_OBJ_ID_PORT_VLAN, SWITCHDEV_OBJ_ID_IPV4_FIB, SWITCHDEV_OBJ_ID_PORT_FDB, SWITCHDEV_OBJ_ID_PORT_MDB, }; struct switchdev_obj { struct net_device *orig_dev; enum switchdev_obj_id id; u32 flags; void *complete_priv; void (*complete)(struct net_device *dev, int err, void *priv); }; /* SWITCHDEV_OBJ_ID_PORT_VLAN */ struct switchdev_obj_port_vlan { struct switchdev_obj obj; u16 flags; u16 vid_begin; u16 vid_end; }; #define SWITCHDEV_OBJ_PORT_VLAN(obj) \ container_of(obj, struct switchdev_obj_port_vlan, obj) /* SWITCHDEV_OBJ_ID_IPV4_FIB */ struct switchdev_obj_ipv4_fib { struct switchdev_obj obj; u32 dst; int dst_len; struct fib_info *fi; u8 tos; u8 type; u32 nlflags; u32 tb_id; }; #define SWITCHDEV_OBJ_IPV4_FIB(obj) \ container_of(obj, struct switchdev_obj_ipv4_fib, obj) /* SWITCHDEV_OBJ_ID_PORT_FDB */ struct switchdev_obj_port_fdb { struct switchdev_obj obj; unsigned char addr[ETH_ALEN]; u16 vid; u16 ndm_state; }; #define SWITCHDEV_OBJ_PORT_FDB(obj) \ container_of(obj, struct switchdev_obj_port_fdb, obj) /* SWITCHDEV_OBJ_ID_PORT_MDB */ struct switchdev_obj_port_mdb { struct switchdev_obj obj; unsigned char addr[ETH_ALEN]; u16 vid; }; #define SWITCHDEV_OBJ_PORT_MDB(obj) \ container_of(obj, struct switchdev_obj_port_mdb, obj) void switchdev_trans_item_enqueue(struct switchdev_trans *trans, void *data, void (*destructor)(void const *), struct switchdev_trans_item *tritem); void *switchdev_trans_item_dequeue(struct switchdev_trans *trans); typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); /** * struct switchdev_ops - switchdev operations * * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). * * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). * * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*). * * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*). * * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*). */ struct switchdev_ops { int (*switchdev_port_attr_get)(struct net_device *dev, struct switchdev_attr *attr); int (*switchdev_port_attr_set)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans); int (*switchdev_port_obj_add)(struct net_device *dev, const struct switchdev_obj *obj, struct switchdev_trans *trans); int (*switchdev_port_obj_del)(struct net_device *dev, const struct switchdev_obj *obj); int (*switchdev_port_obj_dump)(struct net_device *dev, struct switchdev_obj *obj, switchdev_obj_dump_cb_t *cb); }; enum switchdev_notifier_type { SWITCHDEV_FDB_ADD = 1, SWITCHDEV_FDB_DEL, }; struct switchdev_notifier_info { struct net_device *dev; }; struct switchdev_notifier_fdb_info { struct switchdev_notifier_info info; /* must be first */ const unsigned char *addr; u16 vid; }; static inline struct net_device * switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) { return info->dev; } #ifdef CONFIG_NET_SWITCHDEV void switchdev_deferred_process(void); int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr); int switchdev_port_attr_set(struct net_device *dev, const struct switchdev_attr *attr); int switchdev_port_obj_add(struct net_device *dev, const struct switchdev_obj *obj); int switchdev_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj); int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj, switchdev_obj_dump_cb_t *cb); int register_switchdev_notifier(struct notifier_block *nb); int unregister_switchdev_notifier(struct notifier_block *nb); int call_switchdev_notifiers(unsigned long val, struct net_device *dev, struct switchdev_notifier_info *info); int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags); int switchdev_port_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags); int switchdev_port_bridge_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags); int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, u8 tos, u8 type, u32 nlflags, u32 tb_id); int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, u8 tos, u8 type, u32 tb_id); void switchdev_fib_ipv4_abort(struct fib_info *fi); int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 nlm_flags); int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid); int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int idx); void switchdev_port_fwd_mark_set(struct net_device *dev, struct net_device *group_dev, bool joining); #else static inline void switchdev_deferred_process(void) { } static inline int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr) { return -EOPNOTSUPP; } static inline int switchdev_port_attr_set(struct net_device *dev, const struct switchdev_attr *attr) { return -EOPNOTSUPP; } static inline int switchdev_port_obj_add(struct net_device *dev, const struct switchdev_obj *obj) { return -EOPNOTSUPP; } static inline int switchdev_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj) { return -EOPNOTSUPP; } static inline int switchdev_port_obj_dump(struct net_device *dev, const struct switchdev_obj *obj, switchdev_obj_dump_cb_t *cb) { return -EOPNOTSUPP; } static inline int register_switchdev_notifier(struct notifier_block *nb) { return 0; } static inline int unregister_switchdev_notifier(struct notifier_block *nb) { return 0; } static inline int call_switchdev_notifiers(unsigned long val, struct net_device *dev, struct switchdev_notifier_info *info) { return NOTIFY_DONE; } static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags) { return -EOPNOTSUPP; } static inline int switchdev_port_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) { return -EOPNOTSUPP; } static inline int switchdev_port_bridge_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) { return -EOPNOTSUPP; } static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, u8 tos, u8 type, u32 nlflags, u32 tb_id) { return 0; } static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, u8 tos, u8 type, u32 tb_id) { return 0; } static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) { } static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 nlm_flags) { return -EOPNOTSUPP; } static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid) { return -EOPNOTSUPP; } static inline int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int idx) { return idx; } static inline void switchdev_port_fwd_mark_set(struct net_device *dev, struct net_device *group_dev, bool joining) { } #endif #endif /* _LINUX_SWITCHDEV_H_ */
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