thp: remove assumptions on pgtable_t type
[deliverable/linux.git] / include / linux / if_team.h
CommitLineData
3d249d4c
JP
1/*
2 * include/linux/if_team.h - Network team device driver header
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
4 *
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.
9 */
10
11#ifndef _LINUX_IF_TEAM_H_
12#define _LINUX_IF_TEAM_H_
13
14#ifdef __KERNEL__
15
bd2d0837 16#include <linux/netpoll.h>
6c85f2bd 17#include <net/sch_generic.h>
bd2d0837 18
3d249d4c
JP
19struct team_pcpu_stats {
20 u64 rx_packets;
21 u64 rx_bytes;
22 u64 rx_multicast;
23 u64 tx_packets;
24 u64 tx_bytes;
25 struct u64_stats_sync syncp;
26 u32 rx_dropped;
27 u32 tx_dropped;
28};
29
30struct team;
31
32struct team_port {
33 struct net_device *dev;
19a0b58e 34 struct hlist_node hlist; /* node in enabled ports hash list */
3d249d4c
JP
35 struct list_head list; /* node in ordinary list */
36 struct team *team;
19a0b58e 37 int index; /* index of enabled port. If disabled, it's set to -1 */
3d249d4c 38
71472ec1
JP
39 bool linkup; /* either state.linkup or user.linkup */
40
41 struct {
42 bool linkup;
43 u32 speed;
44 u8 duplex;
45 } state;
46
47 /* Values set by userspace */
48 struct {
49 bool linkup;
50 bool linkup_enabled;
51 } user;
52
53 /* Custom gennetlink interface related flags */
54 bool changed;
55 bool removed;
56
3d249d4c
JP
57 /*
58 * A place for storing original values of the device before it
59 * become a port.
60 */
61 struct {
62 unsigned char dev_addr[MAX_ADDR_LEN];
63 unsigned int mtu;
64 } orig;
65
bd2d0837
JP
66#ifdef CONFIG_NET_POLL_CONTROLLER
67 struct netpoll *np;
68#endif
69
a86fc6b7 70 s32 priority; /* lower number ~ higher priority */
8ff5105a
JP
71 u16 queue_id;
72 struct list_head qom_list; /* node in queue override mapping list */
5149ee58 73 long mode_priv[0];
3d249d4c
JP
74};
75
68c45042
JP
76static inline bool team_port_enabled(struct team_port *port)
77{
78 return port->index != -1;
79}
80
81static inline bool team_port_txable(struct team_port *port)
82{
83 return port->linkup && team_port_enabled(port);
84}
52a4fd77 85
bd2d0837
JP
86#ifdef CONFIG_NET_POLL_CONTROLLER
87static inline void team_netpoll_send_skb(struct team_port *port,
88 struct sk_buff *skb)
89{
90 struct netpoll *np = port->np;
91
92 if (np)
93 netpoll_send_skb(np, skb);
94}
95#else
96static inline void team_netpoll_send_skb(struct team_port *port,
97 struct sk_buff *skb)
98{
99}
100#endif
101
3d249d4c
JP
102struct 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);
1d76efe1 111 void (*port_change_dev_addr)(struct team *team, struct team_port *port);
4bccfd17
JP
112 void (*port_enabled)(struct team *team, struct team_port *port);
113 void (*port_disabled)(struct team *team, struct team_port *port);
3d249d4c
JP
114};
115
116enum team_option_type {
117 TEAM_OPTION_TYPE_U32,
118 TEAM_OPTION_TYPE_STRING,
2615598f 119 TEAM_OPTION_TYPE_BINARY,
14f066ba 120 TEAM_OPTION_TYPE_BOOL,
69821638 121 TEAM_OPTION_TYPE_S32,
3d249d4c
JP
122};
123
85d59a87
JP
124struct team_option_inst_info {
125 u32 array_index;
126 struct team_port *port; /* != NULL if per-port */
127};
128
80f7c668
JP
129struct team_gsetter_ctx {
130 union {
131 u32 u32_val;
132 const char *str_val;
133 struct {
134 const void *ptr;
135 u32 len;
136 } bin_val;
14f066ba 137 bool bool_val;
69821638 138 s32 s32_val;
80f7c668 139 } data;
85d59a87 140 struct team_option_inst_info *info;
80f7c668
JP
141};
142
3d249d4c
JP
143struct team_option {
144 struct list_head list;
145 const char *name;
80f7c668 146 bool per_port;
b1303326 147 unsigned int array_size; /* != 0 means the option is array */
3d249d4c 148 enum team_option_type type;
85d59a87 149 int (*init)(struct team *team, struct team_option_inst_info *info);
80f7c668
JP
150 int (*getter)(struct team *team, struct team_gsetter_ctx *ctx);
151 int (*setter)(struct team *team, struct team_gsetter_ctx *ctx);
3d249d4c
JP
152};
153
0f1aad2b
JP
154extern void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info);
155extern void team_options_change_check(struct team *team);
156
3d249d4c 157struct team_mode {
3d249d4c
JP
158 const char *kind;
159 struct module *owner;
160 size_t priv_size;
5149ee58 161 size_t port_priv_size;
3d249d4c
JP
162 const struct team_mode_ops *ops;
163};
164
165#define TEAM_PORT_HASHBITS 4
166#define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
167
168#define TEAM_MODE_PRIV_LONGS 4
169#define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
170
171struct team {
172 struct net_device *dev; /* associated netdevice */
173 struct team_pcpu_stats __percpu *pcpu_stats;
174
61dc3461 175 struct mutex lock; /* used for overall locking, e.g. port lists write */
3d249d4c
JP
176
177 /*
19a0b58e 178 * List of enabled ports and their count
3d249d4c 179 */
19a0b58e
JP
180 int en_port_count;
181 struct hlist_head en_port_hlist[TEAM_PORT_HASHENTRIES];
182
183 struct list_head port_list; /* list of all ports */
3d249d4c
JP
184
185 struct list_head option_list;
80f7c668 186 struct list_head option_inst_list; /* list of option instances */
3d249d4c
JP
187
188 const struct team_mode *mode;
189 struct team_mode_ops ops;
8ff5105a
JP
190 bool queue_override_enabled;
191 struct list_head *qom_lists; /* array of queue override mapping lists */
3d249d4c
JP
192 long mode_priv[TEAM_MODE_PRIV_LONGS];
193};
194
e15c3c22
AW
195static inline int team_dev_queue_xmit(struct team *team, struct team_port *port,
196 struct sk_buff *skb)
197{
198 BUILD_BUG_ON(sizeof(skb->queue_mapping) !=
199 sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping));
200 skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);
201
202 skb->dev = port->dev;
203 if (unlikely(netpoll_tx_running(team->dev))) {
204 team_netpoll_send_skb(port, skb);
205 return 0;
206 }
207 return dev_queue_xmit(skb);
208}
209
3d249d4c
JP
210static inline struct hlist_head *team_port_index_hash(struct team *team,
211 int port_index)
212{
19a0b58e 213 return &team->en_port_hlist[port_index & (TEAM_PORT_HASHENTRIES - 1)];
3d249d4c
JP
214}
215
216static inline struct team_port *team_get_port_by_index(struct team *team,
217 int port_index)
218{
219 struct hlist_node *p;
220 struct team_port *port;
221 struct hlist_head *head = team_port_index_hash(team, port_index);
222
223 hlist_for_each_entry(port, p, head, hlist)
224 if (port->index == port_index)
225 return port;
226 return NULL;
227}
228static inline struct team_port *team_get_port_by_index_rcu(struct team *team,
229 int port_index)
230{
231 struct hlist_node *p;
232 struct team_port *port;
233 struct hlist_head *head = team_port_index_hash(team, port_index);
234
235 hlist_for_each_entry_rcu(port, p, head, hlist)
236 if (port->index == port_index)
237 return port;
238 return NULL;
239}
240
1d76efe1 241extern int team_port_set_team_dev_addr(struct team_port *port);
358b8382
JP
242extern int team_options_register(struct team *team,
243 const struct team_option *option,
244 size_t option_count);
3d249d4c 245extern void team_options_unregister(struct team *team,
358b8382 246 const struct team_option *option,
3d249d4c 247 size_t option_count);
0402788a
JP
248extern int team_mode_register(const struct team_mode *mode);
249extern void team_mode_unregister(const struct team_mode *mode);
3d249d4c 250
6c85f2bd
JP
251#define TEAM_DEFAULT_NUM_TX_QUEUES 16
252#define TEAM_DEFAULT_NUM_RX_QUEUES 16
253
3d249d4c
JP
254#endif /* __KERNEL__ */
255
256#define TEAM_STRING_MAX_LEN 32
257
258/**********************************
259 * NETLINK_GENERIC netlink family.
260 **********************************/
261
262enum {
263 TEAM_CMD_NOOP,
264 TEAM_CMD_OPTIONS_SET,
265 TEAM_CMD_OPTIONS_GET,
266 TEAM_CMD_PORT_LIST_GET,
267
268 __TEAM_CMD_MAX,
269 TEAM_CMD_MAX = (__TEAM_CMD_MAX - 1),
270};
271
272enum {
273 TEAM_ATTR_UNSPEC,
274 TEAM_ATTR_TEAM_IFINDEX, /* u32 */
275 TEAM_ATTR_LIST_OPTION, /* nest */
276 TEAM_ATTR_LIST_PORT, /* nest */
277
278 __TEAM_ATTR_MAX,
279 TEAM_ATTR_MAX = __TEAM_ATTR_MAX - 1,
280};
281
282/* Nested layout of get/set msg:
283 *
284 * [TEAM_ATTR_LIST_OPTION]
285 * [TEAM_ATTR_ITEM_OPTION]
286 * [TEAM_ATTR_OPTION_*], ...
287 * [TEAM_ATTR_ITEM_OPTION]
288 * [TEAM_ATTR_OPTION_*], ...
289 * ...
290 * [TEAM_ATTR_LIST_PORT]
291 * [TEAM_ATTR_ITEM_PORT]
292 * [TEAM_ATTR_PORT_*], ...
293 * [TEAM_ATTR_ITEM_PORT]
294 * [TEAM_ATTR_PORT_*], ...
295 * ...
296 */
297
298enum {
299 TEAM_ATTR_ITEM_OPTION_UNSPEC,
300 TEAM_ATTR_ITEM_OPTION, /* nest */
301
302 __TEAM_ATTR_ITEM_OPTION_MAX,
303 TEAM_ATTR_ITEM_OPTION_MAX = __TEAM_ATTR_ITEM_OPTION_MAX - 1,
304};
305
306enum {
307 TEAM_ATTR_OPTION_UNSPEC,
308 TEAM_ATTR_OPTION_NAME, /* string */
309 TEAM_ATTR_OPTION_CHANGED, /* flag */
310 TEAM_ATTR_OPTION_TYPE, /* u8 */
311 TEAM_ATTR_OPTION_DATA, /* dynamic */
b82b9183 312 TEAM_ATTR_OPTION_REMOVED, /* flag */
80f7c668 313 TEAM_ATTR_OPTION_PORT_IFINDEX, /* u32 */ /* for per-port options */
b1303326 314 TEAM_ATTR_OPTION_ARRAY_INDEX, /* u32 */ /* for array options */
3d249d4c
JP
315
316 __TEAM_ATTR_OPTION_MAX,
317 TEAM_ATTR_OPTION_MAX = __TEAM_ATTR_OPTION_MAX - 1,
318};
319
320enum {
321 TEAM_ATTR_ITEM_PORT_UNSPEC,
322 TEAM_ATTR_ITEM_PORT, /* nest */
323
324 __TEAM_ATTR_ITEM_PORT_MAX,
325 TEAM_ATTR_ITEM_PORT_MAX = __TEAM_ATTR_ITEM_PORT_MAX - 1,
326};
327
328enum {
329 TEAM_ATTR_PORT_UNSPEC,
330 TEAM_ATTR_PORT_IFINDEX, /* u32 */
331 TEAM_ATTR_PORT_CHANGED, /* flag */
332 TEAM_ATTR_PORT_LINKUP, /* flag */
333 TEAM_ATTR_PORT_SPEED, /* u32 */
334 TEAM_ATTR_PORT_DUPLEX, /* u8 */
b82b9183 335 TEAM_ATTR_PORT_REMOVED, /* flag */
3d249d4c
JP
336
337 __TEAM_ATTR_PORT_MAX,
338 TEAM_ATTR_PORT_MAX = __TEAM_ATTR_PORT_MAX - 1,
339};
340
341/*
342 * NETLINK_GENERIC related info
343 */
344#define TEAM_GENL_NAME "team"
345#define TEAM_GENL_VERSION 0x1
346#define TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME "change_event"
347
348#endif /* _LINUX_IF_TEAM_H_ */
This page took 0.233432 seconds and 5 git commands to generate.