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1da177e4 LT |
1 | #ifndef __BEN_VLAN_802_1Q_INC__ |
2 | #define __BEN_VLAN_802_1Q_INC__ | |
3 | ||
4 | #include <linux/if_vlan.h> | |
9618e2ff | 5 | #include <linux/u64_stats_sync.h> |
5b9ea6e0 | 6 | #include <linux/list.h> |
1da177e4 | 7 | |
22d1ba74 PM |
8 | |
9 | /** | |
10 | * struct vlan_priority_tci_mapping - vlan egress priority mappings | |
11 | * @priority: skb priority | |
12 | * @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000 | |
13 | * @next: pointer to next struct | |
14 | */ | |
15 | struct vlan_priority_tci_mapping { | |
16 | u32 priority; | |
9bb8582e | 17 | u16 vlan_qos; |
22d1ba74 PM |
18 | struct vlan_priority_tci_mapping *next; |
19 | }; | |
20 | ||
9793241f ED |
21 | |
22 | /** | |
4af429d2 | 23 | * struct vlan_pcpu_stats - VLAN percpu rx/tx stats |
9793241f ED |
24 | * @rx_packets: number of received packets |
25 | * @rx_bytes: number of received bytes | |
9618e2ff | 26 | * @rx_multicast: number of received multicast packets |
4af429d2 ED |
27 | * @tx_packets: number of transmitted packets |
28 | * @tx_bytes: number of transmitted bytes | |
9618e2ff | 29 | * @syncp: synchronization point for 64bit counters |
4af429d2 ED |
30 | * @rx_errors: number of rx errors |
31 | * @tx_dropped: number of tx drops | |
9793241f | 32 | */ |
4af429d2 | 33 | struct vlan_pcpu_stats { |
9618e2ff ED |
34 | u64 rx_packets; |
35 | u64 rx_bytes; | |
36 | u64 rx_multicast; | |
4af429d2 ED |
37 | u64 tx_packets; |
38 | u64 tx_bytes; | |
9618e2ff | 39 | struct u64_stats_sync syncp; |
4af429d2 ED |
40 | u32 rx_errors; |
41 | u32 tx_dropped; | |
9793241f ED |
42 | }; |
43 | ||
6d4cdf47 BL |
44 | struct netpoll; |
45 | ||
22d1ba74 | 46 | /** |
7da82c06 | 47 | * struct vlan_dev_priv - VLAN private device data |
22d1ba74 PM |
48 | * @nr_ingress_mappings: number of ingress priority mappings |
49 | * @ingress_priority_map: ingress priority mappings | |
50 | * @nr_egress_mappings: number of egress priority mappings | |
51 | * @egress_priority_map: hash of egress priority mappings | |
1fd9b1fc | 52 | * @vlan_proto: VLAN encapsulation protocol |
22d1ba74 PM |
53 | * @vlan_id: VLAN identifier |
54 | * @flags: device flags | |
55 | * @real_dev: underlying netdevice | |
56 | * @real_dev_addr: address of underlying netdevice | |
57 | * @dent: proc dir entry | |
4af429d2 | 58 | * @vlan_pcpu_stats: ptr to percpu rx stats |
22d1ba74 | 59 | */ |
7da82c06 | 60 | struct vlan_dev_priv { |
22d1ba74 PM |
61 | unsigned int nr_ingress_mappings; |
62 | u32 ingress_priority_map[8]; | |
63 | unsigned int nr_egress_mappings; | |
64 | struct vlan_priority_tci_mapping *egress_priority_map[16]; | |
65 | ||
1fd9b1fc | 66 | __be16 vlan_proto; |
9bb8582e PM |
67 | u16 vlan_id; |
68 | u16 flags; | |
22d1ba74 PM |
69 | |
70 | struct net_device *real_dev; | |
71 | unsigned char real_dev_addr[ETH_ALEN]; | |
72 | ||
73 | struct proc_dir_entry *dent; | |
4af429d2 | 74 | struct vlan_pcpu_stats __percpu *vlan_pcpu_stats; |
6d4cdf47 BL |
75 | #ifdef CONFIG_NET_POLL_CONTROLLER |
76 | struct netpoll *netpoll; | |
77 | #endif | |
22d1ba74 PM |
78 | }; |
79 | ||
7da82c06 | 80 | static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) |
22d1ba74 PM |
81 | { |
82 | return netdev_priv(dev); | |
83 | } | |
84 | ||
5b9ea6e0 JP |
85 | /* if this changes, algorithm will have to be reworked because this |
86 | * depends on completely exhausting the VLAN identifier space. Thus | |
87 | * it gives constant time look-up, but in many cases it wastes memory. | |
88 | */ | |
89 | #define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 | |
90 | #define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS) | |
91 | ||
1fd9b1fc PM |
92 | enum vlan_protos { |
93 | VLAN_PROTO_8021Q = 0, | |
94 | VLAN_PROTO_NUM, | |
95 | }; | |
96 | ||
5b9ea6e0 JP |
97 | struct vlan_group { |
98 | unsigned int nr_vlan_devs; | |
99 | struct hlist_node hlist; /* linked list */ | |
1fd9b1fc PM |
100 | struct net_device **vlan_devices_arrays[VLAN_PROTO_NUM] |
101 | [VLAN_GROUP_ARRAY_SPLIT_PARTS]; | |
5b9ea6e0 JP |
102 | }; |
103 | ||
104 | struct vlan_info { | |
105 | struct net_device *real_dev; /* The ethernet(like) device | |
106 | * the vlan is attached to. | |
107 | */ | |
108 | struct vlan_group grp; | |
109 | struct list_head vid_list; | |
110 | unsigned int nr_vids; | |
111 | struct rcu_head rcu; | |
112 | }; | |
113 | ||
1fd9b1fc PM |
114 | static inline unsigned int vlan_proto_idx(__be16 proto) |
115 | { | |
116 | switch (proto) { | |
117 | case __constant_htons(ETH_P_8021Q): | |
118 | return VLAN_PROTO_8021Q; | |
119 | default: | |
120 | BUG(); | |
121 | } | |
122 | } | |
123 | ||
124 | static inline struct net_device *__vlan_group_get_device(struct vlan_group *vg, | |
125 | unsigned int pidx, | |
126 | u16 vlan_id) | |
536d1d4a JP |
127 | { |
128 | struct net_device **array; | |
1fd9b1fc PM |
129 | |
130 | array = vg->vlan_devices_arrays[pidx] | |
131 | [vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; | |
536d1d4a JP |
132 | return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL; |
133 | } | |
134 | ||
1fd9b1fc PM |
135 | static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, |
136 | __be16 vlan_proto, | |
137 | u16 vlan_id) | |
138 | { | |
139 | return __vlan_group_get_device(vg, vlan_proto_idx(vlan_proto), vlan_id); | |
140 | } | |
141 | ||
536d1d4a | 142 | static inline void vlan_group_set_device(struct vlan_group *vg, |
1fd9b1fc | 143 | __be16 vlan_proto, u16 vlan_id, |
536d1d4a JP |
144 | struct net_device *dev) |
145 | { | |
146 | struct net_device **array; | |
147 | if (!vg) | |
148 | return; | |
1fd9b1fc PM |
149 | array = vg->vlan_devices_arrays[vlan_proto_idx(vlan_proto)] |
150 | [vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; | |
536d1d4a JP |
151 | array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; |
152 | } | |
153 | ||
69ecca86 DL |
154 | /* Must be invoked with rcu_read_lock or with RTNL. */ |
155 | static inline struct net_device *vlan_find_dev(struct net_device *real_dev, | |
1fd9b1fc | 156 | __be16 vlan_proto, u16 vlan_id) |
69ecca86 | 157 | { |
5b9ea6e0 | 158 | struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); |
69ecca86 | 159 | |
5b9ea6e0 | 160 | if (vlan_info) |
1fd9b1fc PM |
161 | return vlan_group_get_device(&vlan_info->grp, |
162 | vlan_proto, vlan_id); | |
69ecca86 DL |
163 | |
164 | return NULL; | |
165 | } | |
166 | ||
1fd9b1fc PM |
167 | #define vlan_group_for_each_dev(grp, i, dev) \ |
168 | for ((i) = 0; i < VLAN_PROTO_NUM * VLAN_N_VID; i++) \ | |
169 | if (((dev) = __vlan_group_get_device((grp), (i) / VLAN_N_VID, \ | |
170 | (i) % VLAN_N_VID))) | |
171 | ||
1da177e4 | 172 | /* found in vlan_dev.c */ |
c17d8874 | 173 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
9bb8582e | 174 | u32 skb_prio, u16 vlan_prio); |
c17d8874 | 175 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
9bb8582e | 176 | u32 skb_prio, u16 vlan_prio); |
b3ce0325 | 177 | int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); |
c17d8874 | 178 | void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); |
1da177e4 | 179 | |
1fd9b1fc PM |
180 | int vlan_check_real_dev(struct net_device *real_dev, |
181 | __be16 protocol, u16 vlan_id); | |
07b5b17e PM |
182 | void vlan_setup(struct net_device *dev); |
183 | int register_vlan_dev(struct net_device *dev); | |
23289a37 | 184 | void unregister_vlan_dev(struct net_device *dev, struct list_head *head); |
07b5b17e | 185 | |
7750f403 | 186 | static inline u32 vlan_get_ingress_priority(struct net_device *dev, |
9bb8582e | 187 | u16 vlan_tci) |
7750f403 | 188 | { |
7da82c06 | 189 | struct vlan_dev_priv *vip = vlan_dev_priv(dev); |
7750f403 | 190 | |
05423b24 | 191 | return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; |
7750f403 PM |
192 | } |
193 | ||
70c03b49 PM |
194 | #ifdef CONFIG_VLAN_8021Q_GVRP |
195 | extern int vlan_gvrp_request_join(const struct net_device *dev); | |
196 | extern void vlan_gvrp_request_leave(const struct net_device *dev); | |
197 | extern int vlan_gvrp_init_applicant(struct net_device *dev); | |
198 | extern void vlan_gvrp_uninit_applicant(struct net_device *dev); | |
199 | extern int vlan_gvrp_init(void); | |
200 | extern void vlan_gvrp_uninit(void); | |
201 | #else | |
202 | static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; } | |
203 | static inline void vlan_gvrp_request_leave(const struct net_device *dev) {} | |
204 | static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; } | |
205 | static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {} | |
206 | static inline int vlan_gvrp_init(void) { return 0; } | |
207 | static inline void vlan_gvrp_uninit(void) {} | |
208 | #endif | |
209 | ||
86fbe9bb DW |
210 | #ifdef CONFIG_VLAN_8021Q_MVRP |
211 | extern int vlan_mvrp_request_join(const struct net_device *dev); | |
212 | extern void vlan_mvrp_request_leave(const struct net_device *dev); | |
213 | extern int vlan_mvrp_init_applicant(struct net_device *dev); | |
214 | extern void vlan_mvrp_uninit_applicant(struct net_device *dev); | |
215 | extern int vlan_mvrp_init(void); | |
216 | extern void vlan_mvrp_uninit(void); | |
217 | #else | |
218 | static inline int vlan_mvrp_request_join(const struct net_device *dev) { return 0; } | |
219 | static inline void vlan_mvrp_request_leave(const struct net_device *dev) {} | |
220 | static inline int vlan_mvrp_init_applicant(struct net_device *dev) { return 0; } | |
221 | static inline void vlan_mvrp_uninit_applicant(struct net_device *dev) {} | |
222 | static inline int vlan_mvrp_init(void) { return 0; } | |
223 | static inline void vlan_mvrp_uninit(void) {} | |
224 | #endif | |
225 | ||
b3020061 SH |
226 | extern const char vlan_fullname[]; |
227 | extern const char vlan_version[]; | |
228 | extern int vlan_netlink_init(void); | |
229 | extern void vlan_netlink_fini(void); | |
07b5b17e PM |
230 | |
231 | extern struct rtnl_link_ops vlan_link_ops; | |
232 | ||
d9ed0f0e PE |
233 | extern int vlan_net_id; |
234 | ||
a59a8c1c PE |
235 | struct proc_dir_entry; |
236 | ||
d9ed0f0e | 237 | struct vlan_net { |
a59a8c1c PE |
238 | /* /proc/net/vlan */ |
239 | struct proc_dir_entry *proc_vlan_dir; | |
240 | /* /proc/net/vlan/config */ | |
241 | struct proc_dir_entry *proc_vlan_conf; | |
7a17a2f7 PE |
242 | /* Determines interface naming scheme. */ |
243 | unsigned short name_type; | |
d9ed0f0e PE |
244 | }; |
245 | ||
1da177e4 | 246 | #endif /* !(__BEN_VLAN_802_1Q_INC__) */ |