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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __BEN_VLAN_802_1Q_INC__
2#define __BEN_VLAN_802_1Q_INC__
3
4#include <linux/if_vlan.h>
5
Patrick McHardy22d1ba72008-07-08 03:23:57 -07006
7/**
8 * struct vlan_priority_tci_mapping - vlan egress priority mappings
9 * @priority: skb priority
10 * @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
11 * @next: pointer to next struct
12 */
13struct vlan_priority_tci_mapping {
14 u32 priority;
Patrick McHardy9bb85822008-07-08 03:24:44 -070015 u16 vlan_qos;
Patrick McHardy22d1ba72008-07-08 03:23:57 -070016 struct vlan_priority_tci_mapping *next;
17};
18
Eric Dumazet97932412009-11-17 04:53:09 +000019
20/**
21 * struct vlan_rx_stats - VLAN percpu rx stats
22 * @rx_packets: number of received packets
23 * @rx_bytes: number of received bytes
24 * @multicast: number of received multicast packets
25 * @rx_errors: number of errors
26 */
27struct vlan_rx_stats {
28 unsigned long rx_packets;
29 unsigned long rx_bytes;
30 unsigned long multicast;
31 unsigned long rx_errors;
32};
33
Patrick McHardy22d1ba72008-07-08 03:23:57 -070034/**
35 * struct vlan_dev_info - VLAN private device data
36 * @nr_ingress_mappings: number of ingress priority mappings
37 * @ingress_priority_map: ingress priority mappings
38 * @nr_egress_mappings: number of egress priority mappings
39 * @egress_priority_map: hash of egress priority mappings
40 * @vlan_id: VLAN identifier
41 * @flags: device flags
42 * @real_dev: underlying netdevice
43 * @real_dev_addr: address of underlying netdevice
44 * @dent: proc dir entry
45 * @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX
46 * @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX
Eric Dumazet97932412009-11-17 04:53:09 +000047 * @vlan_rx_stats: ptr to percpu rx stats
Patrick McHardy22d1ba72008-07-08 03:23:57 -070048 */
49struct vlan_dev_info {
50 unsigned int nr_ingress_mappings;
51 u32 ingress_priority_map[8];
52 unsigned int nr_egress_mappings;
53 struct vlan_priority_tci_mapping *egress_priority_map[16];
54
Patrick McHardy9bb85822008-07-08 03:24:44 -070055 u16 vlan_id;
56 u16 flags;
Patrick McHardy22d1ba72008-07-08 03:23:57 -070057
58 struct net_device *real_dev;
59 unsigned char real_dev_addr[ETH_ALEN];
60
61 struct proc_dir_entry *dent;
62 unsigned long cnt_inc_headroom_on_tx;
63 unsigned long cnt_encap_on_xmit;
Tejun Heo7d720c32010-02-16 15:20:26 +000064 struct vlan_rx_stats __percpu *vlan_rx_stats;
Patrick McHardy22d1ba72008-07-08 03:23:57 -070065};
66
67static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
68{
69 return netdev_priv(dev);
70}
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072#define VLAN_GRP_HASH_SHIFT 5
73#define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT)
74#define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1)
75
76/* Find a VLAN device by the MAC address of its Ethernet device, and
77 * it's VLAN ID. The default configuration is to have VLAN's scope
78 * to be box-wide, so the MAC will be ignored. The mac will only be
79 * looked at if we are configured to have a separate set of VLANs per
80 * each MAC addressable interface. Note that this latter option does
81 * NOT follow the spec for VLANs, but may be useful for doing very
82 * large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs.
83 *
84 * Must be invoked with rcu_read_lock (ie preempt disabled)
85 * or with RTNL.
86 */
Patrick McHardy9bb85822008-07-08 03:24:44 -070087struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89/* found in vlan_dev.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -070090int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
YOSHIFUJI Hideaki122952f2007-02-09 23:24:25 +090091 struct packet_type *ptype, struct net_device *orig_dev);
Patrick McHardyc17d8872007-06-13 12:05:22 -070092void vlan_dev_set_ingress_priority(const struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -070093 u32 skb_prio, u16 vlan_prio);
Patrick McHardyc17d8872007-06-13 12:05:22 -070094int vlan_dev_set_egress_priority(const struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -070095 u32 skb_prio, u16 vlan_prio);
Patrick McHardyb3ce0322008-07-05 21:26:27 -070096int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
Patrick McHardyc17d8872007-06-13 12:05:22 -070097void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
Linus Torvalds1da177e2005-04-16 15:20:36 -070098
Patrick McHardy9bb85822008-07-08 03:24:44 -070099int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
Patrick McHardy07b5b172007-06-13 12:07:54 -0700100void vlan_setup(struct net_device *dev);
101int register_vlan_dev(struct net_device *dev);
Eric Dumazet23289a32009-10-27 07:06:36 +0000102void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
Patrick McHardy07b5b172007-06-13 12:07:54 -0700103
Patrick McHardy7750f402008-07-08 03:23:36 -0700104static inline u32 vlan_get_ingress_priority(struct net_device *dev,
Patrick McHardy9bb85822008-07-08 03:24:44 -0700105 u16 vlan_tci)
Patrick McHardy7750f402008-07-08 03:23:36 -0700106{
107 struct vlan_dev_info *vip = vlan_dev_info(dev);
108
Eric Dumazet05423b22009-10-26 18:40:35 -0700109 return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7];
Patrick McHardy7750f402008-07-08 03:23:36 -0700110}
111
Patrick McHardy70c03b42008-07-05 21:26:57 -0700112#ifdef CONFIG_VLAN_8021Q_GVRP
113extern int vlan_gvrp_request_join(const struct net_device *dev);
114extern void vlan_gvrp_request_leave(const struct net_device *dev);
115extern int vlan_gvrp_init_applicant(struct net_device *dev);
116extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
117extern int vlan_gvrp_init(void);
118extern void vlan_gvrp_uninit(void);
119#else
120static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
121static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
122static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
123static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
124static inline int vlan_gvrp_init(void) { return 0; }
125static inline void vlan_gvrp_uninit(void) {}
126#endif
127
Stephen Hemmingerb30200612008-10-28 22:12:36 -0700128extern const char vlan_fullname[];
129extern const char vlan_version[];
130extern int vlan_netlink_init(void);
131extern void vlan_netlink_fini(void);
Patrick McHardy07b5b172007-06-13 12:07:54 -0700132
133extern struct rtnl_link_ops vlan_link_ops;
134
Pavel Emelyanov802fb172008-04-02 00:08:01 -0700135static inline int is_vlan_dev(struct net_device *dev)
136{
137 return dev->priv_flags & IFF_802_1Q_VLAN;
138}
139
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700140extern int vlan_net_id;
141
Pavel Emelyanova59a8c12008-04-16 00:51:51 -0700142struct proc_dir_entry;
143
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700144struct vlan_net {
Pavel Emelyanova59a8c12008-04-16 00:51:51 -0700145 /* /proc/net/vlan */
146 struct proc_dir_entry *proc_vlan_dir;
147 /* /proc/net/vlan/config */
148 struct proc_dir_entry *proc_vlan_conf;
Pavel Emelyanov7a17a2f2008-04-16 00:54:39 -0700149 /* Determines interface naming scheme. */
150 unsigned short name_type;
Pavel Emelyanovd9ed0f02008-04-16 00:49:09 -0700151};
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#endif /* !(__BEN_VLAN_802_1Q_INC__) */