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_ */