1 #ifndef __BEN_VLAN_802_1Q_INC__
2 #define __BEN_VLAN_802_1Q_INC__
4 #include <linux/if_vlan.h>
5 #include <linux/u64_stats_sync.h>
6 #include <linux/list.h>
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
15 struct vlan_priority_tci_mapping {
18 struct vlan_priority_tci_mapping *next;
23 * struct vlan_pcpu_stats - VLAN percpu rx/tx stats
24 * @rx_packets: number of received packets
25 * @rx_bytes: number of received bytes
26 * @rx_multicast: number of received multicast packets
27 * @tx_packets: number of transmitted packets
28 * @tx_bytes: number of transmitted bytes
29 * @syncp: synchronization point for 64bit counters
30 * @rx_errors: number of rx errors
31 * @tx_dropped: number of tx drops
33 struct vlan_pcpu_stats {
39 struct u64_stats_sync syncp;
45 * struct vlan_dev_priv - VLAN private device data
46 * @nr_ingress_mappings: number of ingress priority mappings
47 * @ingress_priority_map: ingress priority mappings
48 * @nr_egress_mappings: number of egress priority mappings
49 * @egress_priority_map: hash of egress priority mappings
50 * @vlan_id: VLAN identifier
51 * @flags: device flags
52 * @real_dev: underlying netdevice
53 * @real_dev_addr: address of underlying netdevice
54 * @dent: proc dir entry
55 * @vlan_pcpu_stats: ptr to percpu rx stats
57 struct vlan_dev_priv {
58 unsigned int nr_ingress_mappings;
59 u32 ingress_priority_map[8];
60 unsigned int nr_egress_mappings;
61 struct vlan_priority_tci_mapping *egress_priority_map[16];
66 struct net_device *real_dev;
67 unsigned char real_dev_addr[ETH_ALEN];
69 struct proc_dir_entry *dent;
70 struct vlan_pcpu_stats __percpu *vlan_pcpu_stats;
73 static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev)
75 return netdev_priv(dev);
78 /* if this changes, algorithm will have to be reworked because this
79 * depends on completely exhausting the VLAN identifier space. Thus
80 * it gives constant time look-up, but in many cases it wastes memory.
82 #define VLAN_GROUP_ARRAY_SPLIT_PARTS 8
83 #define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS)
86 unsigned int nr_vlan_devs;
87 struct hlist_node hlist; /* linked list */
88 struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS];
92 struct net_device *real_dev; /* The ethernet(like) device
93 * the vlan is attached to.
95 struct vlan_group grp;
96 struct list_head vid_list;
101 static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
104 struct net_device **array;
105 array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
106 return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL;
109 static inline void vlan_group_set_device(struct vlan_group *vg,
111 struct net_device *dev)
113 struct net_device **array;
116 array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
117 array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev;
120 /* Must be invoked with rcu_read_lock or with RTNL. */
121 static inline struct net_device *vlan_find_dev(struct net_device *real_dev,
124 struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info);
127 return vlan_group_get_device(&vlan_info->grp, vlan_id);
132 /* found in vlan_dev.c */
133 void vlan_dev_set_ingress_priority(const struct net_device *dev,
134 u32 skb_prio, u16 vlan_prio);
135 int vlan_dev_set_egress_priority(const struct net_device *dev,
136 u32 skb_prio, u16 vlan_prio);
137 int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
138 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
140 int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
141 void vlan_setup(struct net_device *dev);
142 int register_vlan_dev(struct net_device *dev);
143 void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
145 static inline u32 vlan_get_ingress_priority(struct net_device *dev,
148 struct vlan_dev_priv *vip = vlan_dev_priv(dev);
150 return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7];
153 #ifdef CONFIG_VLAN_8021Q_GVRP
154 extern int vlan_gvrp_request_join(const struct net_device *dev);
155 extern void vlan_gvrp_request_leave(const struct net_device *dev);
156 extern int vlan_gvrp_init_applicant(struct net_device *dev);
157 extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
158 extern int vlan_gvrp_init(void);
159 extern void vlan_gvrp_uninit(void);
161 static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
162 static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
163 static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
164 static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
165 static inline int vlan_gvrp_init(void) { return 0; }
166 static inline void vlan_gvrp_uninit(void) {}
169 extern const char vlan_fullname[];
170 extern const char vlan_version[];
171 extern int vlan_netlink_init(void);
172 extern void vlan_netlink_fini(void);
174 extern struct rtnl_link_ops vlan_link_ops;
176 extern int vlan_net_id;
178 struct proc_dir_entry;
182 struct proc_dir_entry *proc_vlan_dir;
183 /* /proc/net/vlan/config */
184 struct proc_dir_entry *proc_vlan_conf;
185 /* Determines interface naming scheme. */
186 unsigned short name_type;
189 #endif /* !(__BEN_VLAN_802_1Q_INC__) */