include/net/switchdev.h

   1 /*
   2  * include/net/switchdev.h - Switch device API
   3  * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
   4  * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11 #ifndef _LINUX_SWITCHDEV_H_
  12 #define _LINUX_SWITCHDEV_H_
  13
  14 #include <linux/netdevice.h>
  15 #include <linux/notifier.h>
  16
  17 enum netdev_switch_notifier_type {
  18         NETDEV_SWITCH_FDB_ADD = 1,
  19         NETDEV_SWITCH_FDB_DEL,
  20 };
  21
  22 struct netdev_switch_notifier_info {
  23         struct net_device *dev;
  24 };
  25
  26 struct netdev_switch_notifier_fdb_info {
  27         struct netdev_switch_notifier_info info; /* must be first */
  28         const unsigned char *addr;
  29         u16 vid;
  30 };
  31
  32 static inline struct net_device *
  33 netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info)
  34 {
  35         return info->dev;
  36 }
  37
  38 #ifdef CONFIG_NET_SWITCHDEV
  39
  40 int netdev_switch_parent_id_get(struct net_device *dev,
  41                                 struct netdev_phys_item_id *psid);
  42 int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
  43 int register_netdev_switch_notifier(struct notifier_block *nb);
  44 int unregister_netdev_switch_notifier(struct notifier_block *nb);
  45 int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
  46                                  struct netdev_switch_notifier_info *info);
  47 int netdev_switch_port_bridge_setlink(struct net_device *dev,
  48                                 struct nlmsghdr *nlh, u16 flags);
  49 int netdev_switch_port_bridge_dellink(struct net_device *dev,
  50                                 struct nlmsghdr *nlh, u16 flags);
  51 int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
  52                                                struct nlmsghdr *nlh, u16 flags);
  53 int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
  54                                                struct nlmsghdr *nlh, u16 flags);
  55 int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
  56                                u8 tos, u8 type, u32 nlflags, u32 tb_id);
  57 int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
  58                                u8 tos, u8 type, u32 tb_id);
  59 void netdev_switch_fib_ipv4_abort(struct fib_info *fi);
  60
  61 #else
  62
  63 static inline int netdev_switch_parent_id_get(struct net_device *dev,
  64                                               struct netdev_phys_item_id *psid)
  65 {
  66         return -EOPNOTSUPP;
  67 }
  68
  69 static inline int netdev_switch_port_stp_update(struct net_device *dev,
  70                                                 u8 state)
  71 {
  72         return -EOPNOTSUPP;
  73 }
  74
  75 static inline int register_netdev_switch_notifier(struct notifier_block *nb)
  76 {
  77         return 0;
  78 }
  79
  80 static inline int unregister_netdev_switch_notifier(struct notifier_block *nb)
  81 {
  82         return 0;
  83 }
  84
  85 static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
  86                                                struct netdev_switch_notifier_info *info)
  87 {
  88         return NOTIFY_DONE;
  89 }
  90
  91 static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,
  92                                                     struct nlmsghdr *nlh,
  93                                                     u16 flags)
  94 {
  95         return -EOPNOTSUPP;
  96 }
  97
  98 static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,
  99                                                     struct nlmsghdr *nlh,
 100                                                     u16 flags)
 101 {
 102         return -EOPNOTSUPP;
 103 }
 104
 105 static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
 106                                                         struct nlmsghdr *nlh,
 107                                                         u16 flags)
 108 {
 109         return 0;
 110 }
 111
 112 static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
 113                                                         struct nlmsghdr *nlh,
 114                                                         u16 flags)
 115 {
 116         return 0;
 117 }
 118
 119 static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,
 120                                              struct fib_info *fi,
 121                                              u8 tos, u8 type,
 122                                              u32 nlflags, u32 tb_id)
 123 {
 124         return 0;
 125 }
 126
 127 static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len,
 128                                              struct fib_info *fi,
 129                                              u8 tos, u8 type, u32 tb_id)
 130 {
 131         return 0;
 132 }
 133
 134 static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi)
 135 {
 136 }
 137
 138 #endif
 139
 140 #endif /* _LINUX_SWITCHDEV_H_ */