2 * include/linux/if_team.h - Network team device driver header
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 #ifndef _LINUX_IF_TEAM_H_
11 #define _LINUX_IF_TEAM_H_
14 #include <linux/netpoll.h>
15 #include <net/sch_generic.h>
16 #include <uapi/linux/if_team.h>
18 struct team_pcpu_stats
{
24 struct u64_stats_sync syncp
;
32 struct net_device
*dev
;
33 struct hlist_node hlist
; /* node in enabled ports hash list */
34 struct list_head list
; /* node in ordinary list */
36 int index
; /* index of enabled port. If disabled, it's set to -1 */
38 bool linkup
; /* either state.linkup or user.linkup */
46 /* Values set by userspace */
52 /* Custom gennetlink interface related flags */
57 * A place for storing original values of the device before it
61 unsigned char dev_addr
[MAX_ADDR_LEN
];
65 #ifdef CONFIG_NET_POLL_CONTROLLER
69 s32 priority
; /* lower number ~ higher priority */
71 struct list_head qom_list
; /* node in queue override mapping list */
75 static inline bool team_port_enabled(struct team_port
*port
)
77 return port
->index
!= -1;
80 static inline bool team_port_txable(struct team_port
*port
)
82 return port
->linkup
&& team_port_enabled(port
);
85 #ifdef CONFIG_NET_POLL_CONTROLLER
86 static inline void team_netpoll_send_skb(struct team_port
*port
,
89 struct netpoll
*np
= port
->np
;
92 netpoll_send_skb(np
, skb
);
95 static inline void team_netpoll_send_skb(struct team_port
*port
,
101 struct team_mode_ops
{
102 int (*init
)(struct team
*team
);
103 void (*exit
)(struct team
*team
);
104 rx_handler_result_t (*receive
)(struct team
*team
,
105 struct team_port
*port
,
106 struct sk_buff
*skb
);
107 bool (*transmit
)(struct team
*team
, struct sk_buff
*skb
);
108 int (*port_enter
)(struct team
*team
, struct team_port
*port
);
109 void (*port_leave
)(struct team
*team
, struct team_port
*port
);
110 void (*port_change_dev_addr
)(struct team
*team
, struct team_port
*port
);
111 void (*port_enabled
)(struct team
*team
, struct team_port
*port
);
112 void (*port_disabled
)(struct team
*team
, struct team_port
*port
);
115 extern int team_modeop_port_enter(struct team
*team
, struct team_port
*port
);
116 extern void team_modeop_port_change_dev_addr(struct team
*team
,
117 struct team_port
*port
);
119 enum team_option_type
{
120 TEAM_OPTION_TYPE_U32
,
121 TEAM_OPTION_TYPE_STRING
,
122 TEAM_OPTION_TYPE_BINARY
,
123 TEAM_OPTION_TYPE_BOOL
,
124 TEAM_OPTION_TYPE_S32
,
127 struct team_option_inst_info
{
129 struct team_port
*port
; /* != NULL if per-port */
132 struct team_gsetter_ctx
{
143 struct team_option_inst_info
*info
;
147 struct list_head list
;
150 unsigned int array_size
; /* != 0 means the option is array */
151 enum team_option_type type
;
152 int (*init
)(struct team
*team
, struct team_option_inst_info
*info
);
153 int (*getter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
154 int (*setter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
157 extern void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
);
158 extern void team_options_change_check(struct team
*team
);
162 struct module
*owner
;
164 size_t port_priv_size
;
165 const struct team_mode_ops
*ops
;
168 #define TEAM_PORT_HASHBITS 4
169 #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
171 #define TEAM_MODE_PRIV_LONGS 4
172 #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
175 struct net_device
*dev
; /* associated netdevice */
176 struct team_pcpu_stats __percpu
*pcpu_stats
;
178 struct mutex lock
; /* used for overall locking, e.g. port lists write */
181 * List of enabled ports and their count
184 struct hlist_head en_port_hlist
[TEAM_PORT_HASHENTRIES
];
186 struct list_head port_list
; /* list of all ports */
188 struct list_head option_list
;
189 struct list_head option_inst_list
; /* list of option instances */
191 const struct team_mode
*mode
;
192 struct team_mode_ops ops
;
193 bool user_carrier_enabled
;
194 bool queue_override_enabled
;
195 struct list_head
*qom_lists
; /* array of queue override mapping lists */
196 bool port_mtu_change_allowed
;
197 long mode_priv
[TEAM_MODE_PRIV_LONGS
];
200 static inline int team_dev_queue_xmit(struct team
*team
, struct team_port
*port
,
203 BUILD_BUG_ON(sizeof(skb
->queue_mapping
) !=
204 sizeof(qdisc_skb_cb(skb
)->slave_dev_queue_mapping
));
205 skb_set_queue_mapping(skb
, qdisc_skb_cb(skb
)->slave_dev_queue_mapping
);
207 skb
->dev
= port
->dev
;
208 if (unlikely(netpoll_tx_running(team
->dev
))) {
209 team_netpoll_send_skb(port
, skb
);
212 return dev_queue_xmit(skb
);
215 static inline struct hlist_head
*team_port_index_hash(struct team
*team
,
218 return &team
->en_port_hlist
[port_index
& (TEAM_PORT_HASHENTRIES
- 1)];
221 static inline struct team_port
*team_get_port_by_index(struct team
*team
,
224 struct team_port
*port
;
225 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
227 hlist_for_each_entry(port
, head
, hlist
)
228 if (port
->index
== port_index
)
232 static inline struct team_port
*team_get_port_by_index_rcu(struct team
*team
,
235 struct team_port
*port
;
236 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
238 hlist_for_each_entry_rcu(port
, head
, hlist
)
239 if (port
->index
== port_index
)
244 static inline struct team_port
*
245 team_get_first_port_txable_rcu(struct team
*team
, struct team_port
*port
)
247 struct team_port
*cur
;
249 if (likely(team_port_txable(port
)))
252 list_for_each_entry_continue_rcu(cur
, &team
->port_list
, list
)
253 if (team_port_txable(cur
))
255 list_for_each_entry_rcu(cur
, &team
->port_list
, list
) {
258 if (team_port_txable(cur
))
264 extern int team_options_register(struct team
*team
,
265 const struct team_option
*option
,
266 size_t option_count
);
267 extern void team_options_unregister(struct team
*team
,
268 const struct team_option
*option
,
269 size_t option_count
);
270 extern int team_mode_register(const struct team_mode
*mode
);
271 extern void team_mode_unregister(const struct team_mode
*mode
);
273 #define TEAM_DEFAULT_NUM_TX_QUEUES 16
274 #define TEAM_DEFAULT_NUM_RX_QUEUES 16
276 #endif /* _LINUX_IF_TEAM_H_ */