| 1 | |
| 2 | * include/net/switchdev.h - Switch device API
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| 3 | * Copyright (c) 2014 Jiri Pirko <[email protected]>
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| 4 | * Copyright (c) 2014-2015 Scott Feldman <[email protected]>
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 2 of the License, or
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| 9 | * (at your option) any later version.
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| 10 |
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| 11 | #ifndef _LINUX_SWITCHDEV_H_
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| 12 | #define _LINUX_SWITCHDEV_H_
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| 13 |
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| 14 | #include <linux/netdevice.h>
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| 15 | #include <linux/notifier.h>
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| 16 |
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| 17 | struct fib_info;
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| 18 |
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| 19 | |
| 20 | * struct switchdev_ops - switchdev operations
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| 21 | *
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| 22 | * @swdev_parent_id_get: Called to get an ID of the switch chip this port
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| 23 | * is part of. If driver implements this, it indicates that it
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| 24 | * represents a port of a switch chip.
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| 25 | *
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| 26 | * @swdev_port_stp_update: Called to notify switch device port of bridge
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| 27 | * port STP state change.
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| 28 | *
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| 29 | * @swdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device.
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| 30 | *
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| 31 | * @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device.
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| 32 |
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| 33 | struct swdev_ops {
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| 34 | int (*swdev_parent_id_get)(struct net_device *dev,
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| 35 | struct netdev_phys_item_id *psid);
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| 36 | int (*swdev_port_stp_update)(struct net_device *dev, u8 state);
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| 37 | int (*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,
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| 38 | int dst_len, struct fib_info *fi,
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| 39 | u8 tos, u8 type, u32 nlflags,
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| 40 | u32 tb_id);
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| 41 | int (*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,
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| 42 | int dst_len, struct fib_info *fi,
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| 43 | u8 tos, u8 type, u32 tb_id);
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| 44 | };
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| 45 |
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| 46 | enum netdev_switch_notifier_type {
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| 47 | NETDEV_SWITCH_FDB_ADD = 1,
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| 48 | NETDEV_SWITCH_FDB_DEL,
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| 49 | };
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| 50 |
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| 51 | struct netdev_switch_notifier_info {
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| 52 | struct net_device *dev;
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| 53 | };
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| 54 |
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| 55 | struct netdev_switch_notifier_fdb_info {
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| 56 | struct netdev_switch_notifier_info info;
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| 57 | const unsigned char *addr;
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| 58 | u16 vid;
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| 59 | };
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| 60 |
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| 61 | static inline struct net_device *
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| 62 | netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info)
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| 63 | {
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| 64 | return info->dev;
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| 65 | }
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| 66 |
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| 67 | #ifdef CONFIG_NET_SWITCHDEV
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| 68 |
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| 69 | int netdev_switch_parent_id_get(struct net_device *dev,
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| 70 | struct netdev_phys_item_id *psid);
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| 71 | int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
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| 72 | int register_netdev_switch_notifier(struct notifier_block *nb);
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| 73 | int unregister_netdev_switch_notifier(struct notifier_block *nb);
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| 74 | int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
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| 75 | struct netdev_switch_notifier_info *info);
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| 76 | int netdev_switch_port_bridge_setlink(struct net_device *dev,
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| 77 | struct nlmsghdr *nlh, u16 flags);
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| 78 | int netdev_switch_port_bridge_dellink(struct net_device *dev,
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| 79 | struct nlmsghdr *nlh, u16 flags);
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| 80 | int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
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| 81 | struct nlmsghdr *nlh, u16 flags);
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| 82 | int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
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| 83 | struct nlmsghdr *nlh, u16 flags);
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| 84 | int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
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| 85 | u8 tos, u8 type, u32 nlflags, u32 tb_id);
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| 86 | int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
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| 87 | u8 tos, u8 type, u32 tb_id);
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| 88 | void netdev_switch_fib_ipv4_abort(struct fib_info *fi);
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| 89 |
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| 90 | #else
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| 91 |
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| 92 | static inline int netdev_switch_parent_id_get(struct net_device *dev,
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| 93 | struct netdev_phys_item_id *psid)
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| 94 | {
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| 95 | return -EOPNOTSUPP;
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| 96 | }
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| 97 |
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| 98 | static inline int netdev_switch_port_stp_update(struct net_device *dev,
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| 99 | u8 state)
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| 100 | {
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| 101 | return -EOPNOTSUPP;
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| 102 | }
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| 103 |
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| 104 | static inline int register_netdev_switch_notifier(struct notifier_block *nb)
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| 105 | {
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| 106 | return 0;
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| 107 | }
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| 108 |
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| 109 | static inline int unregister_netdev_switch_notifier(struct notifier_block *nb)
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| 110 | {
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| 111 | return 0;
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| 112 | }
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| 113 |
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| 114 | static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
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| 115 | struct netdev_switch_notifier_info *info)
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| 116 | {
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| 117 | return NOTIFY_DONE;
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| 118 | }
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| 119 |
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| 120 | static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,
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| 121 | struct nlmsghdr *nlh,
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| 122 | u16 flags)
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| 123 | {
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| 124 | return -EOPNOTSUPP;
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| 125 | }
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| 126 |
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| 127 | static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,
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| 128 | struct nlmsghdr *nlh,
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| 129 | u16 flags)
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| 130 | {
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| 131 | return -EOPNOTSUPP;
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| 132 | }
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| 133 |
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| 134 | static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
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| 135 | struct nlmsghdr *nlh,
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| 136 | u16 flags)
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| 137 | {
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| 138 | return 0;
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| 139 | }
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| 140 |
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| 141 | static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
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| 142 | struct nlmsghdr *nlh,
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| 143 | u16 flags)
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| 144 | {
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| 145 | return 0;
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| 146 | }
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| 147 |
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| 148 | static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,
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| 149 | struct fib_info *fi,
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| 150 | u8 tos, u8 type,
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| 151 | u32 nlflags, u32 tb_id)
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| 152 | {
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| 153 | return 0;
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| 154 | }
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| 155 |
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| 156 | static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len,
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| 157 | struct fib_info *fi,
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| 158 | u8 tos, u8 type, u32 tb_id)
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| 159 | {
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| 160 | return 0;
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| 161 | }
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| 162 |
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| 163 | static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi)
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| 164 | {
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| 165 | }
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| 166 |
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| 167 | #endif
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| 168 |
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| 169 | #endif
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