This source file includes following definitions.
- team_port_get_rcu
- team_port_enabled
- team_port_txable
- team_port_dev_txable
- team_netpoll_send_skb
- team_netpoll_send_skb
- team_dev_queue_xmit
- team_port_index_hash
- team_get_port_by_index
- team_num_to_port_index
- team_get_port_by_index_rcu
- team_get_first_port_txable_rcu
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6 #ifndef _LINUX_IF_TEAM_H_
7 #define _LINUX_IF_TEAM_H_
8
9 #include <linux/netpoll.h>
10 #include <net/sch_generic.h>
11 #include <linux/types.h>
12 #include <uapi/linux/if_team.h>
13
14 struct team_pcpu_stats {
15 u64 rx_packets;
16 u64 rx_bytes;
17 u64 rx_multicast;
18 u64 tx_packets;
19 u64 tx_bytes;
20 struct u64_stats_sync syncp;
21 u32 rx_dropped;
22 u32 tx_dropped;
23 u32 rx_nohandler;
24 };
25
26 struct team;
27
28 struct team_port {
29 struct net_device *dev;
30 struct hlist_node hlist;
31 struct list_head list;
32 struct team *team;
33 int index;
34
35 bool linkup;
36
37 struct {
38 bool linkup;
39 u32 speed;
40 u8 duplex;
41 } state;
42
43
44 struct {
45 bool linkup;
46 bool linkup_enabled;
47 } user;
48
49
50 bool changed;
51 bool removed;
52
53
54
55
56
57 struct {
58 unsigned char dev_addr[MAX_ADDR_LEN];
59 unsigned int mtu;
60 } orig;
61
62 #ifdef CONFIG_NET_POLL_CONTROLLER
63 struct netpoll *np;
64 #endif
65
66 s32 priority;
67 u16 queue_id;
68 struct list_head qom_list;
69 struct rcu_head rcu;
70 long mode_priv[0];
71 };
72
73 static inline struct team_port *team_port_get_rcu(const struct net_device *dev)
74 {
75 return rcu_dereference(dev->rx_handler_data);
76 }
77
78 static inline bool team_port_enabled(struct team_port *port)
79 {
80 return port->index != -1;
81 }
82
83 static inline bool team_port_txable(struct team_port *port)
84 {
85 return port->linkup && team_port_enabled(port);
86 }
87
88 static inline bool team_port_dev_txable(const struct net_device *port_dev)
89 {
90 struct team_port *port;
91 bool txable;
92
93 rcu_read_lock();
94 port = team_port_get_rcu(port_dev);
95 txable = port ? team_port_txable(port) : false;
96 rcu_read_unlock();
97
98 return txable;
99 }
100
101 #ifdef CONFIG_NET_POLL_CONTROLLER
102 static inline void team_netpoll_send_skb(struct team_port *port,
103 struct sk_buff *skb)
104 {
105 struct netpoll *np = port->np;
106
107 if (np)
108 netpoll_send_skb(np, skb);
109 }
110 #else
111 static inline void team_netpoll_send_skb(struct team_port *port,
112 struct sk_buff *skb)
113 {
114 }
115 #endif
116
117 struct team_mode_ops {
118 int (*init)(struct team *team);
119 void (*exit)(struct team *team);
120 rx_handler_result_t (*receive)(struct team *team,
121 struct team_port *port,
122 struct sk_buff *skb);
123 bool (*transmit)(struct team *team, struct sk_buff *skb);
124 int (*port_enter)(struct team *team, struct team_port *port);
125 void (*port_leave)(struct team *team, struct team_port *port);
126 void (*port_change_dev_addr)(struct team *team, struct team_port *port);
127 void (*port_enabled)(struct team *team, struct team_port *port);
128 void (*port_disabled)(struct team *team, struct team_port *port);
129 };
130
131 extern int team_modeop_port_enter(struct team *team, struct team_port *port);
132 extern void team_modeop_port_change_dev_addr(struct team *team,
133 struct team_port *port);
134
135 enum team_option_type {
136 TEAM_OPTION_TYPE_U32,
137 TEAM_OPTION_TYPE_STRING,
138 TEAM_OPTION_TYPE_BINARY,
139 TEAM_OPTION_TYPE_BOOL,
140 TEAM_OPTION_TYPE_S32,
141 };
142
143 struct team_option_inst_info {
144 u32 array_index;
145 struct team_port *port;
146 };
147
148 struct team_gsetter_ctx {
149 union {
150 u32 u32_val;
151 const char *str_val;
152 struct {
153 const void *ptr;
154 u32 len;
155 } bin_val;
156 bool bool_val;
157 s32 s32_val;
158 } data;
159 struct team_option_inst_info *info;
160 };
161
162 struct team_option {
163 struct list_head list;
164 const char *name;
165 bool per_port;
166 unsigned int array_size;
167 enum team_option_type type;
168 int (*init)(struct team *team, struct team_option_inst_info *info);
169 int (*getter)(struct team *team, struct team_gsetter_ctx *ctx);
170 int (*setter)(struct team *team, struct team_gsetter_ctx *ctx);
171 };
172
173 extern void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info);
174 extern void team_options_change_check(struct team *team);
175
176 struct team_mode {
177 const char *kind;
178 struct module *owner;
179 size_t priv_size;
180 size_t port_priv_size;
181 const struct team_mode_ops *ops;
182 enum netdev_lag_tx_type lag_tx_type;
183 };
184
185 #define TEAM_PORT_HASHBITS 4
186 #define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
187
188 #define TEAM_MODE_PRIV_LONGS 4
189 #define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
190
191 struct team {
192 struct net_device *dev;
193 struct team_pcpu_stats __percpu *pcpu_stats;
194
195 struct mutex lock;
196
197
198
199
200 int en_port_count;
201 struct hlist_head en_port_hlist[TEAM_PORT_HASHENTRIES];
202
203 struct list_head port_list;
204
205 struct list_head option_list;
206 struct list_head option_inst_list;
207
208 const struct team_mode *mode;
209 struct team_mode_ops ops;
210 bool user_carrier_enabled;
211 bool queue_override_enabled;
212 struct list_head *qom_lists;
213 bool port_mtu_change_allowed;
214 struct {
215 unsigned int count;
216 unsigned int interval;
217 atomic_t count_pending;
218 struct delayed_work dw;
219 } notify_peers;
220 struct {
221 unsigned int count;
222 unsigned int interval;
223 atomic_t count_pending;
224 struct delayed_work dw;
225 } mcast_rejoin;
226 struct lock_class_key team_lock_key;
227 long mode_priv[TEAM_MODE_PRIV_LONGS];
228 };
229
230 static inline int team_dev_queue_xmit(struct team *team, struct team_port *port,
231 struct sk_buff *skb)
232 {
233 BUILD_BUG_ON(sizeof(skb->queue_mapping) !=
234 sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping));
235 skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);
236
237 skb->dev = port->dev;
238 if (unlikely(netpoll_tx_running(team->dev))) {
239 team_netpoll_send_skb(port, skb);
240 return 0;
241 }
242 return dev_queue_xmit(skb);
243 }
244
245 static inline struct hlist_head *team_port_index_hash(struct team *team,
246 int port_index)
247 {
248 return &team->en_port_hlist[port_index & (TEAM_PORT_HASHENTRIES - 1)];
249 }
250
251 static inline struct team_port *team_get_port_by_index(struct team *team,
252 int port_index)
253 {
254 struct team_port *port;
255 struct hlist_head *head = team_port_index_hash(team, port_index);
256
257 hlist_for_each_entry(port, head, hlist)
258 if (port->index == port_index)
259 return port;
260 return NULL;
261 }
262
263 static inline int team_num_to_port_index(struct team *team, unsigned int num)
264 {
265 int en_port_count = READ_ONCE(team->en_port_count);
266
267 if (unlikely(!en_port_count))
268 return 0;
269 return num % en_port_count;
270 }
271
272 static inline struct team_port *team_get_port_by_index_rcu(struct team *team,
273 int port_index)
274 {
275 struct team_port *port;
276 struct hlist_head *head = team_port_index_hash(team, port_index);
277
278 hlist_for_each_entry_rcu(port, head, hlist)
279 if (port->index == port_index)
280 return port;
281 return NULL;
282 }
283
284 static inline struct team_port *
285 team_get_first_port_txable_rcu(struct team *team, struct team_port *port)
286 {
287 struct team_port *cur;
288
289 if (likely(team_port_txable(port)))
290 return port;
291 cur = port;
292 list_for_each_entry_continue_rcu(cur, &team->port_list, list)
293 if (team_port_txable(cur))
294 return cur;
295 list_for_each_entry_rcu(cur, &team->port_list, list) {
296 if (cur == port)
297 break;
298 if (team_port_txable(cur))
299 return cur;
300 }
301 return NULL;
302 }
303
304 extern int team_options_register(struct team *team,
305 const struct team_option *option,
306 size_t option_count);
307 extern void team_options_unregister(struct team *team,
308 const struct team_option *option,
309 size_t option_count);
310 extern int team_mode_register(const struct team_mode *mode);
311 extern void team_mode_unregister(const struct team_mode *mode);
312
313 #define TEAM_DEFAULT_NUM_TX_QUEUES 16
314 #define TEAM_DEFAULT_NUM_RX_QUEUES 16
315
316 #define MODULE_ALIAS_TEAM_MODE(kind) MODULE_ALIAS("team-mode-" kind)
317
318 #endif