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_
13 #include <linux/netpoll.h>
14 #include <net/sch_generic.h>
15 #include <linux/types.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 */
76 static inline bool team_port_enabled(struct team_port
*port
)
78 return port
->index
!= -1;
81 static inline bool team_port_txable(struct team_port
*port
)
83 return port
->linkup
&& team_port_enabled(port
);
86 #ifdef CONFIG_NET_POLL_CONTROLLER
87 static inline void team_netpoll_send_skb(struct team_port
*port
,
90 struct netpoll
*np
= port
->np
;
93 netpoll_send_skb(np
, skb
);
96 static inline void team_netpoll_send_skb(struct team_port
*port
,
102 struct team_mode_ops
{
103 int (*init
)(struct team
*team
);
104 void (*exit
)(struct team
*team
);
105 rx_handler_result_t (*receive
)(struct team
*team
,
106 struct team_port
*port
,
107 struct sk_buff
*skb
);
108 bool (*transmit
)(struct team
*team
, struct sk_buff
*skb
);
109 int (*port_enter
)(struct team
*team
, struct team_port
*port
);
110 void (*port_leave
)(struct team
*team
, struct team_port
*port
);
111 void (*port_change_dev_addr
)(struct team
*team
, struct team_port
*port
);
112 void (*port_enabled
)(struct team
*team
, struct team_port
*port
);
113 void (*port_disabled
)(struct team
*team
, struct team_port
*port
);
116 extern int team_modeop_port_enter(struct team
*team
, struct team_port
*port
);
117 extern void team_modeop_port_change_dev_addr(struct team
*team
,
118 struct team_port
*port
);
120 enum team_option_type
{
121 TEAM_OPTION_TYPE_U32
,
122 TEAM_OPTION_TYPE_STRING
,
123 TEAM_OPTION_TYPE_BINARY
,
124 TEAM_OPTION_TYPE_BOOL
,
125 TEAM_OPTION_TYPE_S32
,
128 struct team_option_inst_info
{
130 struct team_port
*port
; /* != NULL if per-port */
133 struct team_gsetter_ctx
{
144 struct team_option_inst_info
*info
;
148 struct list_head list
;
151 unsigned int array_size
; /* != 0 means the option is array */
152 enum team_option_type type
;
153 int (*init
)(struct team
*team
, struct team_option_inst_info
*info
);
154 int (*getter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
155 int (*setter
)(struct team
*team
, struct team_gsetter_ctx
*ctx
);
158 extern void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
);
159 extern void team_options_change_check(struct team
*team
);
163 struct module
*owner
;
165 size_t port_priv_size
;
166 const struct team_mode_ops
*ops
;
167 enum netdev_lag_tx_type lag_tx_type
;
170 #define TEAM_PORT_HASHBITS 4
171 #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
173 #define TEAM_MODE_PRIV_LONGS 4
174 #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
177 struct net_device
*dev
; /* associated netdevice */
178 struct team_pcpu_stats __percpu
*pcpu_stats
;
180 struct mutex lock
; /* used for overall locking, e.g. port lists write */
183 * List of enabled ports and their count
186 struct hlist_head en_port_hlist
[TEAM_PORT_HASHENTRIES
];
188 struct list_head port_list
; /* list of all ports */
190 struct list_head option_list
;
191 struct list_head option_inst_list
; /* list of option instances */
193 const struct team_mode
*mode
;
194 struct team_mode_ops ops
;
195 bool user_carrier_enabled
;
196 bool queue_override_enabled
;
197 struct list_head
*qom_lists
; /* array of queue override mapping lists */
198 bool port_mtu_change_allowed
;
201 unsigned int interval
; /* in ms */
202 atomic_t count_pending
;
203 struct delayed_work dw
;
207 unsigned int interval
; /* in ms */
208 atomic_t count_pending
;
209 struct delayed_work dw
;
211 long mode_priv
[TEAM_MODE_PRIV_LONGS
];
214 static inline int team_dev_queue_xmit(struct team
*team
, struct team_port
*port
,
217 BUILD_BUG_ON(sizeof(skb
->queue_mapping
) !=
218 sizeof(qdisc_skb_cb(skb
)->slave_dev_queue_mapping
));
219 skb_set_queue_mapping(skb
, qdisc_skb_cb(skb
)->slave_dev_queue_mapping
);
221 skb
->dev
= port
->dev
;
222 if (unlikely(netpoll_tx_running(team
->dev
))) {
223 team_netpoll_send_skb(port
, skb
);
226 return dev_queue_xmit(skb
);
229 static inline struct hlist_head
*team_port_index_hash(struct team
*team
,
232 return &team
->en_port_hlist
[port_index
& (TEAM_PORT_HASHENTRIES
- 1)];
235 static inline struct team_port
*team_get_port_by_index(struct team
*team
,
238 struct team_port
*port
;
239 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
241 hlist_for_each_entry(port
, head
, hlist
)
242 if (port
->index
== port_index
)
247 static inline int team_num_to_port_index(struct team
*team
, int num
)
249 int en_port_count
= ACCESS_ONCE(team
->en_port_count
);
251 if (unlikely(!en_port_count
))
253 return num
% en_port_count
;
256 static inline struct team_port
*team_get_port_by_index_rcu(struct team
*team
,
259 struct team_port
*port
;
260 struct hlist_head
*head
= team_port_index_hash(team
, port_index
);
262 hlist_for_each_entry_rcu(port
, head
, hlist
)
263 if (port
->index
== port_index
)
268 static inline struct team_port
*
269 team_get_first_port_txable_rcu(struct team
*team
, struct team_port
*port
)
271 struct team_port
*cur
;
273 if (likely(team_port_txable(port
)))
276 list_for_each_entry_continue_rcu(cur
, &team
->port_list
, list
)
277 if (team_port_txable(cur
))
279 list_for_each_entry_rcu(cur
, &team
->port_list
, list
) {
282 if (team_port_txable(cur
))
288 extern int team_options_register(struct team
*team
,
289 const struct team_option
*option
,
290 size_t option_count
);
291 extern void team_options_unregister(struct team
*team
,
292 const struct team_option
*option
,
293 size_t option_count
);
294 extern int team_mode_register(const struct team_mode
*mode
);
295 extern void team_mode_unregister(const struct team_mode
*mode
);
297 #define TEAM_DEFAULT_NUM_TX_QUEUES 16
298 #define TEAM_DEFAULT_NUM_RX_QUEUES 16
300 #endif /* _LINUX_IF_TEAM_H_ */