| /* |
| * include/net/switchdev.h - Switch device API |
| * Copyright (c) 2014 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> |
| |
| #define SWITCHDEV_F_NO_RECURSE BIT(0) |
| |
| enum switchdev_trans { |
| SWITCHDEV_TRANS_NONE, |
| SWITCHDEV_TRANS_PREPARE, |
| SWITCHDEV_TRANS_ABORT, |
| SWITCHDEV_TRANS_COMMIT, |
| }; |
| |
| enum switchdev_attr_id { |
| SWITCHDEV_ATTR_UNDEFINED, |
| SWITCHDEV_ATTR_PORT_PARENT_ID, |
| SWITCHDEV_ATTR_PORT_STP_STATE, |
| SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS, |
| }; |
| |
| struct switchdev_attr { |
| enum switchdev_attr_id id; |
| enum switchdev_trans trans; |
| u32 flags; |
| union { |
| struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ |
| u8 stp_state; /* PORT_STP_STATE */ |
| unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
| } u; |
| }; |
| |
| struct fib_info; |
| |
| enum switchdev_obj_id { |
| SWITCHDEV_OBJ_UNDEFINED, |
| SWITCHDEV_OBJ_PORT_VLAN, |
| SWITCHDEV_OBJ_IPV4_FIB, |
| SWITCHDEV_OBJ_PORT_FDB, |
| }; |
| |
| struct switchdev_obj { |
| enum switchdev_obj_id id; |
| enum switchdev_trans trans; |
| int (*cb)(struct net_device *dev, struct switchdev_obj *obj); |
| union { |
| struct switchdev_obj_vlan { /* PORT_VLAN */ |
| u16 flags; |
| u16 vid_begin; |
| u16 vid_end; |
| } vlan; |
| struct switchdev_obj_ipv4_fib { /* IPV4_FIB */ |
| u32 dst; |
| int dst_len; |
| struct fib_info *fi; |
| u8 tos; |
| u8 type; |
| u32 nlflags; |
| u32 tb_id; |
| } ipv4_fib; |
| struct switchdev_obj_fdb { /* PORT_FDB */ |
| const unsigned char *addr; |
| u16 vid; |
| } fdb; |
| } u; |
| }; |
| |
| /** |
| * 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, |
| struct switchdev_attr *attr); |
| int (*switchdev_port_obj_add)(struct net_device *dev, |
| struct switchdev_obj *obj); |
| int (*switchdev_port_obj_del)(struct net_device *dev, |
| struct switchdev_obj *obj); |
| int (*switchdev_port_obj_dump)(struct net_device *dev, |
| struct switchdev_obj *obj); |
| }; |
| |
| 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 |
| |
| int switchdev_port_attr_get(struct net_device *dev, |
| struct switchdev_attr *attr); |
| int switchdev_port_attr_set(struct net_device *dev, |
| struct switchdev_attr *attr); |
| int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj); |
| int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj); |
| int switchdev_port_obj_dump(struct net_device *dev, 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); |
| 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); |
| |
| #else |
| |
| 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, |
| struct switchdev_attr *attr) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static inline int switchdev_port_obj_add(struct net_device *dev, |
| struct switchdev_obj *obj) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static inline int switchdev_port_obj_del(struct net_device *dev, |
| struct switchdev_obj *obj) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static inline int switchdev_port_obj_dump(struct net_device *dev, |
| 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) |
| { |
| 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 -EOPNOTSUPP; |
| } |
| |
| #endif |
| |
| #endif /* _LINUX_SWITCHDEV_H_ */ |
