| /* |
| * include/linux/if_team.h - Network team device driver header |
| * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.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_IF_TEAM_H_ |
| #define _LINUX_IF_TEAM_H_ |
| |
| #ifdef __KERNEL__ |
| |
| struct team_pcpu_stats { |
| u64 rx_packets; |
| u64 rx_bytes; |
| u64 rx_multicast; |
| u64 tx_packets; |
| u64 tx_bytes; |
| struct u64_stats_sync syncp; |
| u32 rx_dropped; |
| u32 tx_dropped; |
| }; |
| |
| struct team; |
| |
| struct team_port { |
| struct net_device *dev; |
| struct hlist_node hlist; /* node in hash list */ |
| struct list_head list; /* node in ordinary list */ |
| struct team *team; |
| int index; |
| |
| /* |
| * A place for storing original values of the device before it |
| * become a port. |
| */ |
| struct { |
| unsigned char dev_addr[MAX_ADDR_LEN]; |
| unsigned int mtu; |
| } orig; |
| |
| bool linkup; |
| u32 speed; |
| u8 duplex; |
| |
| /* Custom gennetlink interface related flags */ |
| bool changed; |
| bool removed; |
| |
| struct rcu_head rcu; |
| }; |
| |
| struct team_mode_ops { |
| int (*init)(struct team *team); |
| void (*exit)(struct team *team); |
| rx_handler_result_t (*receive)(struct team *team, |
| struct team_port *port, |
| struct sk_buff *skb); |
| bool (*transmit)(struct team *team, struct sk_buff *skb); |
| int (*port_enter)(struct team *team, struct team_port *port); |
| void (*port_leave)(struct team *team, struct team_port *port); |
| void (*port_change_mac)(struct team *team, struct team_port *port); |
| }; |
| |
| enum team_option_type { |
| TEAM_OPTION_TYPE_U32, |
| TEAM_OPTION_TYPE_STRING, |
| }; |
| |
| struct team_option { |
| struct list_head list; |
| const char *name; |
| enum team_option_type type; |
| int (*getter)(struct team *team, void *arg); |
| int (*setter)(struct team *team, void *arg); |
| |
| /* Custom gennetlink interface related flags */ |
| bool changed; |
| bool removed; |
| }; |
| |
| struct team_mode { |
| struct list_head list; |
| const char *kind; |
| struct module *owner; |
| size_t priv_size; |
| const struct team_mode_ops *ops; |
| }; |
| |
| #define TEAM_PORT_HASHBITS 4 |
| #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS) |
| |
| #define TEAM_MODE_PRIV_LONGS 4 |
| #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS) |
| |
| struct team { |
| struct net_device *dev; /* associated netdevice */ |
| struct team_pcpu_stats __percpu *pcpu_stats; |
| |
| struct mutex lock; /* used for overall locking, e.g. port lists write */ |
| |
| /* |
| * port lists with port count |
| */ |
| int port_count; |
| struct hlist_head port_hlist[TEAM_PORT_HASHENTRIES]; |
| struct list_head port_list; |
| |
| struct list_head option_list; |
| |
| const struct team_mode *mode; |
| struct team_mode_ops ops; |
| bool port_mtu_change_allowed; |
| long mode_priv[TEAM_MODE_PRIV_LONGS]; |
| }; |
| |
| static inline struct hlist_head *team_port_index_hash(struct team *team, |
| int port_index) |
| { |
| return &team->port_hlist[port_index & (TEAM_PORT_HASHENTRIES - 1)]; |
| } |
| |
| static inline struct team_port *team_get_port_by_index(struct team *team, |
| int port_index) |
| { |
| struct hlist_node *p; |
| struct team_port *port; |
| struct hlist_head *head = team_port_index_hash(team, port_index); |
| |
| hlist_for_each_entry(port, p, head, hlist) |
| if (port->index == port_index) |
| return port; |
| return NULL; |
| } |
| static inline struct team_port *team_get_port_by_index_rcu(struct team *team, |
| int port_index) |
| { |
| struct hlist_node *p; |
| struct team_port *port; |
| struct hlist_head *head = team_port_index_hash(team, port_index); |
| |
| hlist_for_each_entry_rcu(port, p, head, hlist) |
| if (port->index == port_index) |
| return port; |
| return NULL; |
| } |
| |
| extern int team_port_set_team_mac(struct team_port *port); |
| extern int team_options_register(struct team *team, |
| const struct team_option *option, |
| size_t option_count); |
| extern void team_options_unregister(struct team *team, |
| const struct team_option *option, |
| size_t option_count); |
| extern int team_mode_register(struct team_mode *mode); |
| extern int team_mode_unregister(struct team_mode *mode); |
| |
| #endif /* __KERNEL__ */ |
| |
| #define TEAM_STRING_MAX_LEN 32 |
| |
| /********************************** |
| * NETLINK_GENERIC netlink family. |
| **********************************/ |
| |
| enum { |
| TEAM_CMD_NOOP, |
| TEAM_CMD_OPTIONS_SET, |
| TEAM_CMD_OPTIONS_GET, |
| TEAM_CMD_PORT_LIST_GET, |
| |
| __TEAM_CMD_MAX, |
| TEAM_CMD_MAX = (__TEAM_CMD_MAX - 1), |
| }; |
| |
| enum { |
| TEAM_ATTR_UNSPEC, |
| TEAM_ATTR_TEAM_IFINDEX, /* u32 */ |
| TEAM_ATTR_LIST_OPTION, /* nest */ |
| TEAM_ATTR_LIST_PORT, /* nest */ |
| |
| __TEAM_ATTR_MAX, |
| TEAM_ATTR_MAX = __TEAM_ATTR_MAX - 1, |
| }; |
| |
| /* Nested layout of get/set msg: |
| * |
| * [TEAM_ATTR_LIST_OPTION] |
| * [TEAM_ATTR_ITEM_OPTION] |
| * [TEAM_ATTR_OPTION_*], ... |
| * [TEAM_ATTR_ITEM_OPTION] |
| * [TEAM_ATTR_OPTION_*], ... |
| * ... |
| * [TEAM_ATTR_LIST_PORT] |
| * [TEAM_ATTR_ITEM_PORT] |
| * [TEAM_ATTR_PORT_*], ... |
| * [TEAM_ATTR_ITEM_PORT] |
| * [TEAM_ATTR_PORT_*], ... |
| * ... |
| */ |
| |
| enum { |
| TEAM_ATTR_ITEM_OPTION_UNSPEC, |
| TEAM_ATTR_ITEM_OPTION, /* nest */ |
| |
| __TEAM_ATTR_ITEM_OPTION_MAX, |
| TEAM_ATTR_ITEM_OPTION_MAX = __TEAM_ATTR_ITEM_OPTION_MAX - 1, |
| }; |
| |
| enum { |
| TEAM_ATTR_OPTION_UNSPEC, |
| TEAM_ATTR_OPTION_NAME, /* string */ |
| TEAM_ATTR_OPTION_CHANGED, /* flag */ |
| TEAM_ATTR_OPTION_TYPE, /* u8 */ |
| TEAM_ATTR_OPTION_DATA, /* dynamic */ |
| TEAM_ATTR_OPTION_REMOVED, /* flag */ |
| |
| __TEAM_ATTR_OPTION_MAX, |
| TEAM_ATTR_OPTION_MAX = __TEAM_ATTR_OPTION_MAX - 1, |
| }; |
| |
| enum { |
| TEAM_ATTR_ITEM_PORT_UNSPEC, |
| TEAM_ATTR_ITEM_PORT, /* nest */ |
| |
| __TEAM_ATTR_ITEM_PORT_MAX, |
| TEAM_ATTR_ITEM_PORT_MAX = __TEAM_ATTR_ITEM_PORT_MAX - 1, |
| }; |
| |
| enum { |
| TEAM_ATTR_PORT_UNSPEC, |
| TEAM_ATTR_PORT_IFINDEX, /* u32 */ |
| TEAM_ATTR_PORT_CHANGED, /* flag */ |
| TEAM_ATTR_PORT_LINKUP, /* flag */ |
| TEAM_ATTR_PORT_SPEED, /* u32 */ |
| TEAM_ATTR_PORT_DUPLEX, /* u8 */ |
| TEAM_ATTR_PORT_REMOVED, /* flag */ |
| |
| __TEAM_ATTR_PORT_MAX, |
| TEAM_ATTR_PORT_MAX = __TEAM_ATTR_PORT_MAX - 1, |
| }; |
| |
| /* |
| * NETLINK_GENERIC related info |
| */ |
| #define TEAM_GENL_NAME "team" |
| #define TEAM_GENL_VERSION 0x1 |
| #define TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME "change_event" |
| |
| #endif /* _LINUX_IF_TEAM_H_ */ |