| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * 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> |
| */ |
| #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_VLAN_PROTOCOL, |
| SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, |
| SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, |
| #if IS_ENABLED(CONFIG_BRIDGE_MRP) |
| SWITCHDEV_ATTR_ID_MRP_PORT_STATE, |
| SWITCHDEV_ATTR_ID_MRP_PORT_ROLE, |
| #endif |
| }; |
| |
| 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 */ |
| u16 vlan_protocol; /* BRIDGE_VLAN_PROTOCOL */ |
| bool mc_disabled; /* MC_DISABLED */ |
| #if IS_ENABLED(CONFIG_BRIDGE_MRP) |
| u8 mrp_port_state; /* MRP_PORT_STATE */ |
| u8 mrp_port_role; /* MRP_PORT_ROLE */ |
| #endif |
| } u; |
| }; |
| |
| enum switchdev_obj_id { |
| SWITCHDEV_OBJ_ID_UNDEFINED, |
| SWITCHDEV_OBJ_ID_PORT_VLAN, |
| SWITCHDEV_OBJ_ID_PORT_MDB, |
| SWITCHDEV_OBJ_ID_HOST_MDB, |
| #if IS_ENABLED(CONFIG_BRIDGE_MRP) |
| SWITCHDEV_OBJ_ID_MRP, |
| SWITCHDEV_OBJ_ID_RING_TEST_MRP, |
| SWITCHDEV_OBJ_ID_RING_ROLE_MRP, |
| SWITCHDEV_OBJ_ID_RING_STATE_MRP, |
| SWITCHDEV_OBJ_ID_IN_TEST_MRP, |
| SWITCHDEV_OBJ_ID_IN_ROLE_MRP, |
| SWITCHDEV_OBJ_ID_IN_STATE_MRP, |
| |
| #endif |
| }; |
| |
| 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) |
| |
| |
| #if IS_ENABLED(CONFIG_BRIDGE_MRP) |
| /* SWITCHDEV_OBJ_ID_MRP */ |
| struct switchdev_obj_mrp { |
| struct switchdev_obj obj; |
| struct net_device *p_port; |
| struct net_device *s_port; |
| u32 ring_id; |
| u16 prio; |
| }; |
| |
| #define SWITCHDEV_OBJ_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_mrp, obj) |
| |
| /* SWITCHDEV_OBJ_ID_RING_TEST_MRP */ |
| struct switchdev_obj_ring_test_mrp { |
| struct switchdev_obj obj; |
| /* The value is in us and a value of 0 represents to stop */ |
| u32 interval; |
| u8 max_miss; |
| u32 ring_id; |
| u32 period; |
| bool monitor; |
| }; |
| |
| #define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj) |
| |
| /* SWICHDEV_OBJ_ID_RING_ROLE_MRP */ |
| struct switchdev_obj_ring_role_mrp { |
| struct switchdev_obj obj; |
| u8 ring_role; |
| u32 ring_id; |
| }; |
| |
| #define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj) |
| |
| struct switchdev_obj_ring_state_mrp { |
| struct switchdev_obj obj; |
| u8 ring_state; |
| u32 ring_id; |
| }; |
| |
| #define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj) |
| |
| /* SWITCHDEV_OBJ_ID_IN_TEST_MRP */ |
| struct switchdev_obj_in_test_mrp { |
| struct switchdev_obj obj; |
| /* The value is in us and a value of 0 represents to stop */ |
| u32 interval; |
| u32 in_id; |
| u32 period; |
| u8 max_miss; |
| }; |
| |
| #define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_in_test_mrp, obj) |
| |
| /* SWICHDEV_OBJ_ID_IN_ROLE_MRP */ |
| struct switchdev_obj_in_role_mrp { |
| struct switchdev_obj obj; |
| struct net_device *i_port; |
| u32 ring_id; |
| u16 in_id; |
| u8 in_role; |
| }; |
| |
| #define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_in_role_mrp, obj) |
| |
| struct switchdev_obj_in_state_mrp { |
| struct switchdev_obj obj; |
| u32 in_id; |
| u8 in_state; |
| }; |
| |
| #define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \ |
| container_of((OBJ), struct switchdev_obj_in_state_mrp, obj) |
| |
| #endif |
| |
| 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_FDB_FLUSH_TO_BRIDGE, |
| |
| 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_ */ |