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 enum team_option_type
{
116 TEAM_OPTION_TYPE_U32
,
117 TEAM_OPTION_TYPE_STRING
,
118 TEAM_OPTION_TYPE_BINARY
,
119 TEAM_OPTION_TYPE_BOOL
,
120 TEAM_OPTION_TYPE_S32
,
123 struct team_option_inst_info
{
125 struct team_port
*port
; /* != NULL if per-port */
128 struct team_gsetter_ctx
{
139 struct team_option_inst_info
*info
;
143 struct list_head list
;
146 unsigned int array_size
; /* != 0 means the option is array */
147 enum team_option_type type
;
148 int (*init
)(struct team
*team
, struct team_option_inst_info
*info
);
149 int (*getter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
150 int (*setter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
153 extern void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
);
154 extern void team_options_change_check(struct team
*team
);
158 struct module
*owner
;
160 size_t port_priv_size
;
161 const struct team_mode_ops
*ops
;
164 #define TEAM_PORT_HASHBITS 4
165 #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
167 #define TEAM_MODE_PRIV_LONGS 4
168 #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
171 struct net_device
*dev
; /* associated netdevice */
172 struct team_pcpu_stats __percpu
*pcpu_stats
;
174 struct mutex lock
; /* used for overall locking, e.g. port lists write */
177 * List of enabled ports and their count
180 struct hlist_head en_port_hlist
[TEAM_PORT_HASHENTRIES
];
182 struct list_head port_list
; /* list of all ports */
184 struct list_head option_list
;
185 struct list_head option_inst_list
; /* list of option instances */
187 const struct team_mode
*mode
;
188 struct team_mode_ops ops
;
189 bool queue_override_enabled
;
190 struct list_head
*qom_lists
; /* array of queue override mapping lists */
191 long mode_priv
[TEAM_MODE_PRIV_LONGS
];
194 static inline int team_dev_queue_xmit(struct team
*team
, struct team_port
*port
,
197 BUILD_BUG_ON(sizeof(skb
->queue_mapping
) !=
198 sizeof(qdisc_skb_cb(skb
)->slave_dev_queue_mapping
));
199 skb_set_queue_mapping(skb
, qdisc_skb_cb(skb
)->slave_dev_queue_mapping
);
201 skb
->dev
= port
->dev
;
202 if (unlikely(netpoll_tx_running(team
->dev
))) {
203 team_netpoll_send_skb(port
, skb
);
206 return dev_queue_xmit(skb
);
209 static inline struct hlist_head
*team_port_index_hash(struct team
*team
,
212 return &team
->en_port_hlist
[port_index
& (TEAM_PORT_HASHENTRIES
- 1)];
215 static inline struct team_port
*team_get_port_by_index(struct team
*team
,
218 struct hlist_node
*p
;
219 struct team_port
*port
;
220 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
222 hlist_for_each_entry(port
, p
, head
, hlist
)
223 if (port
->index
== port_index
)
227 static inline struct team_port
*team_get_port_by_index_rcu(struct team
*team
,
230 struct hlist_node
*p
;
231 struct team_port
*port
;
232 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
234 hlist_for_each_entry_rcu(port
, p
, head
, hlist
)
235 if (port
->index
== port_index
)
240 extern int team_port_set_team_dev_addr(struct team_port
*port
);
241 extern int team_options_register(struct team
*team
,
242 const struct team_option
*option
,
243 size_t option_count
);
244 extern void team_options_unregister(struct team
*team
,
245 const struct team_option
*option
,
246 size_t option_count
);
247 extern int team_mode_register(const struct team_mode
*mode
);
248 extern void team_mode_unregister(const struct team_mode
*mode
);
250 #define TEAM_DEFAULT_NUM_TX_QUEUES 16
251 #define TEAM_DEFAULT_NUM_RX_QUEUES 16
253 #endif /* _LINUX_IF_TEAM_H_ */