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
;
47 * struct vlan_dev_priv - VLAN private device data
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_proto: VLAN encapsulation protocol
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
58 * @vlan_pcpu_stats: ptr to percpu rx stats
60 struct vlan_dev_priv
{
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];
70 struct net_device
*real_dev
;
71 unsigned char real_dev_addr
[ETH_ALEN
];
73 struct proc_dir_entry
*dent
;
74 struct vlan_pcpu_stats __percpu
*vlan_pcpu_stats
;
75 #ifdef CONFIG_NET_POLL_CONTROLLER
76 struct netpoll
*netpoll
;
80 static inline struct vlan_dev_priv
*vlan_dev_priv(const struct net_device
*dev
)
82 return netdev_priv(dev
);
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.
89 #define VLAN_GROUP_ARRAY_SPLIT_PARTS 8
90 #define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS)
98 unsigned int nr_vlan_devs
;
99 struct hlist_node hlist
; /* linked list */
100 struct net_device
**vlan_devices_arrays
[VLAN_PROTO_NUM
]
101 [VLAN_GROUP_ARRAY_SPLIT_PARTS
];
105 struct net_device
*real_dev
; /* The ethernet(like) device
106 * the vlan is attached to.
108 struct vlan_group grp
;
109 struct list_head vid_list
;
110 unsigned int nr_vids
;
114 static inline unsigned int vlan_proto_idx(__be16 proto
)
117 case __constant_htons(ETH_P_8021Q
):
118 return VLAN_PROTO_8021Q
;
124 static inline struct net_device
*__vlan_group_get_device(struct vlan_group
*vg
,
128 struct net_device
**array
;
130 array
= vg
->vlan_devices_arrays
[pidx
]
131 [vlan_id
/ VLAN_GROUP_ARRAY_PART_LEN
];
132 return array
? array
[vlan_id
% VLAN_GROUP_ARRAY_PART_LEN
] : NULL
;
135 static inline struct net_device
*vlan_group_get_device(struct vlan_group
*vg
,
139 return __vlan_group_get_device(vg
, vlan_proto_idx(vlan_proto
), vlan_id
);
142 static inline void vlan_group_set_device(struct vlan_group
*vg
,
143 __be16 vlan_proto
, u16 vlan_id
,
144 struct net_device
*dev
)
146 struct net_device
**array
;
149 array
= vg
->vlan_devices_arrays
[vlan_proto_idx(vlan_proto
)]
150 [vlan_id
/ VLAN_GROUP_ARRAY_PART_LEN
];
151 array
[vlan_id
% VLAN_GROUP_ARRAY_PART_LEN
] = dev
;
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
,
156 __be16 vlan_proto
, u16 vlan_id
)
158 struct vlan_info
*vlan_info
= rcu_dereference_rtnl(real_dev
->vlan_info
);
161 return vlan_group_get_device(&vlan_info
->grp
,
162 vlan_proto
, vlan_id
);
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, \
172 /* found in vlan_dev.c */
173 void vlan_dev_set_ingress_priority(const struct net_device
*dev
,
174 u32 skb_prio
, u16 vlan_prio
);
175 int vlan_dev_set_egress_priority(const struct net_device
*dev
,
176 u32 skb_prio
, u16 vlan_prio
);
177 int vlan_dev_change_flags(const struct net_device
*dev
, u32 flag
, u32 mask
);
178 void vlan_dev_get_realdev_name(const struct net_device
*dev
, char *result
);
180 int vlan_check_real_dev(struct net_device
*real_dev
,
181 __be16 protocol
, u16 vlan_id
);
182 void vlan_setup(struct net_device
*dev
);
183 int register_vlan_dev(struct net_device
*dev
);
184 void unregister_vlan_dev(struct net_device
*dev
, struct list_head
*head
);
186 static inline u32
vlan_get_ingress_priority(struct net_device
*dev
,
189 struct vlan_dev_priv
*vip
= vlan_dev_priv(dev
);
191 return vip
->ingress_priority_map
[(vlan_tci
>> VLAN_PRIO_SHIFT
) & 0x7];
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);
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) {}
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);
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) {}
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);
231 extern struct rtnl_link_ops vlan_link_ops
;
233 extern int vlan_net_id
;
235 struct proc_dir_entry
;
239 struct proc_dir_entry
*proc_vlan_dir
;
240 /* /proc/net/vlan/config */
241 struct proc_dir_entry
*proc_vlan_conf
;
242 /* Determines interface naming scheme. */
243 unsigned short name_type
;
246 #endif /* !(__BEN_VLAN_802_1Q_INC__) */