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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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304 lines (260 loc) · 8.2 KB
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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 { 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_STP_STATE, SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS, SWITCHDEV_ATTR_ID_PORT_MROUTER, SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, }; 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 { u8 stp_state; /* PORT_STP_STATE */ unsigned long brport_flags; /* PORT_{PRE}_BRIDGE_FLAGS */ bool mrouter; /* PORT_MROUTER */ clock_t ageing_time; /* BRIDGE_AGEING_TIME */ bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ bool mc_disabled; /* MC_DISABLED */ } u; }; enum switchdev_obj_id { SWITCHDEV_OBJ_ID_UNDEFINED, SWITCHDEV_OBJ_ID_PORT_VLAN, SWITCHDEV_OBJ_ID_PORT_MDB, SWITCHDEV_OBJ_ID_HOST_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_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) typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); enum switchdev_notifier_type { SWITCHDEV_FDB_ADD_TO_BRIDGE = 1, SWITCHDEV_FDB_DEL_TO_BRIDGE, SWITCHDEV_FDB_ADD_TO_DEVICE, SWITCHDEV_FDB_DEL_TO_DEVICE, SWITCHDEV_FDB_OFFLOADED, SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */ SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */ SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */ SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE, SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE, SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE, SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE, SWITCHDEV_VXLAN_FDB_OFFLOADED, }; struct switchdev_notifier_info { struct net_device *dev; struct netlink_ext_ack *extack; }; struct switchdev_notifier_fdb_info { struct switchdev_notifier_info info; /* must be first */ const unsigned char *addr; u16 vid; u8 added_by_user:1, offloaded:1; }; struct switchdev_notifier_port_obj_info { struct switchdev_notifier_info info; /* must be first */ const struct switchdev_obj *obj; struct switchdev_trans *trans; bool handled; }; struct switchdev_notifier_port_attr_info { struct switchdev_notifier_info info; /* must be first */ const struct switchdev_attr *attr; struct switchdev_trans *trans; bool handled; }; static inline struct net_device * switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) { return info->dev; } static inline struct netlink_ext_ack * switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info) { return info->extack; } #ifdef CONFIG_NET_SWITCHDEV void switchdev_deferred_process(void); 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, struct netlink_ext_ack *extack); int switchdev_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj); 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, struct netlink_ext_ack *extack); int register_switchdev_blocking_notifier(struct notifier_block *nb); int unregister_switchdev_blocking_notifier(struct notifier_block *nb); int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, struct switchdev_notifier_info *info, struct netlink_ext_ack *extack); void switchdev_port_fwd_mark_set(struct net_device *dev, struct net_device *group_dev, bool joining); int switchdev_handle_port_obj_add(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*add_cb)(struct net_device *dev, const struct switchdev_obj *obj, struct switchdev_trans *trans, struct netlink_ext_ack *extack)); int switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)); int switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)); #else static inline void switchdev_deferred_process(void) { } 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, struct netlink_ext_ack *extack) { return -EOPNOTSUPP; } static inline int switchdev_port_obj_del(struct net_device *dev, const struct switchdev_obj *obj) { 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, struct netlink_ext_ack *extack) { return NOTIFY_DONE; } static inline int register_switchdev_blocking_notifier(struct notifier_block *nb) { return 0; } static inline int unregister_switchdev_blocking_notifier(struct notifier_block *nb) { return 0; } static inline int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, struct switchdev_notifier_info *info, struct netlink_ext_ack *extack) { return NOTIFY_DONE; } static inline int switchdev_handle_port_obj_add(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*add_cb)(struct net_device *dev, const struct switchdev_obj *obj, struct switchdev_trans *trans, struct netlink_ext_ack *extack)) { return 0; } static inline int switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)) { return 0; } static inline int switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)) { return 0; } #endif #endif /* _LINUX_SWITCHDEV_H_ */
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