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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 | |
52 | * @vlan_id: VLAN identifier | |
53 | * @flags: device flags | |
54 | * @real_dev: underlying netdevice | |
55 | * @real_dev_addr: address of underlying netdevice | |
56 | * @dent: proc dir entry | |
4af429d2 | 57 | * @vlan_pcpu_stats: ptr to percpu rx stats |
22d1ba74 | 58 | */ |
7da82c06 | 59 | struct vlan_dev_priv { |
22d1ba74 PM |
60 | unsigned int nr_ingress_mappings; |
61 | u32 ingress_priority_map[8]; | |
62 | unsigned int nr_egress_mappings; | |
63 | struct vlan_priority_tci_mapping *egress_priority_map[16]; | |
64 | ||
9bb8582e PM |
65 | u16 vlan_id; |
66 | u16 flags; | |
22d1ba74 PM |
67 | |
68 | struct net_device *real_dev; | |
69 | unsigned char real_dev_addr[ETH_ALEN]; | |
70 | ||
71 | struct proc_dir_entry *dent; | |
4af429d2 | 72 | struct vlan_pcpu_stats __percpu *vlan_pcpu_stats; |
6d4cdf47 BL |
73 | #ifdef CONFIG_NET_POLL_CONTROLLER |
74 | struct netpoll *netpoll; | |
75 | #endif | |
22d1ba74 PM |
76 | }; |
77 | ||
7da82c06 | 78 | static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) |
22d1ba74 PM |
79 | { |
80 | return netdev_priv(dev); | |
81 | } | |
82 | ||
5b9ea6e0 JP |
83 | /* if this changes, algorithm will have to be reworked because this |
84 | * depends on completely exhausting the VLAN identifier space. Thus | |
85 | * it gives constant time look-up, but in many cases it wastes memory. | |
86 | */ | |
87 | #define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 | |
88 | #define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS) | |
89 | ||
90 | struct vlan_group { | |
91 | unsigned int nr_vlan_devs; | |
92 | struct hlist_node hlist; /* linked list */ | |
93 | struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS]; | |
94 | }; | |
95 | ||
96 | struct vlan_info { | |
97 | struct net_device *real_dev; /* The ethernet(like) device | |
98 | * the vlan is attached to. | |
99 | */ | |
100 | struct vlan_group grp; | |
101 | struct list_head vid_list; | |
102 | unsigned int nr_vids; | |
103 | struct rcu_head rcu; | |
104 | }; | |
105 | ||
536d1d4a JP |
106 | static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, |
107 | u16 vlan_id) | |
108 | { | |
109 | struct net_device **array; | |
110 | array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; | |
111 | return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL; | |
112 | } | |
113 | ||
114 | static inline void vlan_group_set_device(struct vlan_group *vg, | |
115 | u16 vlan_id, | |
116 | struct net_device *dev) | |
117 | { | |
118 | struct net_device **array; | |
119 | if (!vg) | |
120 | return; | |
121 | array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; | |
122 | array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; | |
123 | } | |
124 | ||
69ecca86 DL |
125 | /* Must be invoked with rcu_read_lock or with RTNL. */ |
126 | static inline struct net_device *vlan_find_dev(struct net_device *real_dev, | |
127 | u16 vlan_id) | |
128 | { | |
5b9ea6e0 | 129 | struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); |
69ecca86 | 130 | |
5b9ea6e0 JP |
131 | if (vlan_info) |
132 | return vlan_group_get_device(&vlan_info->grp, vlan_id); | |
69ecca86 DL |
133 | |
134 | return NULL; | |
135 | } | |
136 | ||
1da177e4 | 137 | /* found in vlan_dev.c */ |
c17d8874 | 138 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
9bb8582e | 139 | u32 skb_prio, u16 vlan_prio); |
c17d8874 | 140 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
9bb8582e | 141 | u32 skb_prio, u16 vlan_prio); |
b3ce0325 | 142 | int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); |
c17d8874 | 143 | void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); |
1da177e4 | 144 | |
9bb8582e | 145 | int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id); |
07b5b17e PM |
146 | void vlan_setup(struct net_device *dev); |
147 | int register_vlan_dev(struct net_device *dev); | |
23289a37 | 148 | void unregister_vlan_dev(struct net_device *dev, struct list_head *head); |
07b5b17e | 149 | |
7750f403 | 150 | static inline u32 vlan_get_ingress_priority(struct net_device *dev, |
9bb8582e | 151 | u16 vlan_tci) |
7750f403 | 152 | { |
7da82c06 | 153 | struct vlan_dev_priv *vip = vlan_dev_priv(dev); |
7750f403 | 154 | |
05423b24 | 155 | return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; |
7750f403 PM |
156 | } |
157 | ||
70c03b49 PM |
158 | #ifdef CONFIG_VLAN_8021Q_GVRP |
159 | extern int vlan_gvrp_request_join(const struct net_device *dev); | |
160 | extern void vlan_gvrp_request_leave(const struct net_device *dev); | |
161 | extern int vlan_gvrp_init_applicant(struct net_device *dev); | |
162 | extern void vlan_gvrp_uninit_applicant(struct net_device *dev); | |
163 | extern int vlan_gvrp_init(void); | |
164 | extern void vlan_gvrp_uninit(void); | |
165 | #else | |
166 | static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; } | |
167 | static inline void vlan_gvrp_request_leave(const struct net_device *dev) {} | |
168 | static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; } | |
169 | static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {} | |
170 | static inline int vlan_gvrp_init(void) { return 0; } | |
171 | static inline void vlan_gvrp_uninit(void) {} | |
172 | #endif | |
173 | ||
b3020061 SH |
174 | extern const char vlan_fullname[]; |
175 | extern const char vlan_version[]; | |
176 | extern int vlan_netlink_init(void); | |
177 | extern void vlan_netlink_fini(void); | |
07b5b17e PM |
178 | |
179 | extern struct rtnl_link_ops vlan_link_ops; | |
180 | ||
d9ed0f0e PE |
181 | extern int vlan_net_id; |
182 | ||
a59a8c1c PE |
183 | struct proc_dir_entry; |
184 | ||
d9ed0f0e | 185 | struct vlan_net { |
a59a8c1c PE |
186 | /* /proc/net/vlan */ |
187 | struct proc_dir_entry *proc_vlan_dir; | |
188 | /* /proc/net/vlan/config */ | |
189 | struct proc_dir_entry *proc_vlan_conf; | |
7a17a2f7 PE |
190 | /* Determines interface naming scheme. */ |
191 | unsigned short name_type; | |
d9ed0f0e PE |
192 | }; |
193 | ||
1da177e4 | 194 | #endif /* !(__BEN_VLAN_802_1Q_INC__) */ |