1 #ifndef __BEN_VLAN_802_1Q_INC__ 2 #define __BEN_VLAN_802_1Q_INC__ 3 4 #include <linux/if_vlan.h> 5 6 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 */ 13 struct vlan_priority_tci_mapping { 14 u32 priority; 15 u16 vlan_qos; 16 struct vlan_priority_tci_mapping *next; 17 }; 18 19 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 */ 27 struct vlan_rx_stats { 28 unsigned long rx_packets; 29 unsigned long rx_bytes; 30 unsigned long multicast; 31 unsigned long rx_errors; 32 }; 33 34 /** 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 47 * @vlan_rx_stats: ptr to percpu rx stats 48 */ 49 struct 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 55 u16 vlan_id; 56 u16 flags; 57 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; 64 struct vlan_rx_stats __percpu *vlan_rx_stats; 65 }; 66 67 static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev) 68 { 69 return netdev_priv(dev); 70 } 71 72 #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 */ 87 struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id); 88 89 /* found in vlan_dev.c */ 90 int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, 91 struct packet_type *ptype, struct net_device *orig_dev); 92 void vlan_dev_set_ingress_priority(const struct net_device *dev, 93 u32 skb_prio, u16 vlan_prio); 94 int vlan_dev_set_egress_priority(const struct net_device *dev, 95 u32 skb_prio, u16 vlan_prio); 96 int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); 97 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); 98 99 int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id); 100 void vlan_setup(struct net_device *dev); 101 int register_vlan_dev(struct net_device *dev); 102 void unregister_vlan_dev(struct net_device *dev, struct list_head *head); 103 104 static inline u32 vlan_get_ingress_priority(struct net_device *dev, 105 u16 vlan_tci) 106 { 107 struct vlan_dev_info *vip = vlan_dev_info(dev); 108 109 return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; 110 } 111 112 #ifdef CONFIG_VLAN_8021Q_GVRP 113 extern int vlan_gvrp_request_join(const struct net_device *dev); 114 extern void vlan_gvrp_request_leave(const struct net_device *dev); 115 extern int vlan_gvrp_init_applicant(struct net_device *dev); 116 extern void vlan_gvrp_uninit_applicant(struct net_device *dev); 117 extern int vlan_gvrp_init(void); 118 extern void vlan_gvrp_uninit(void); 119 #else 120 static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; } 121 static inline void vlan_gvrp_request_leave(const struct net_device *dev) {} 122 static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; } 123 static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {} 124 static inline int vlan_gvrp_init(void) { return 0; } 125 static inline void vlan_gvrp_uninit(void) {} 126 #endif 127 128 extern const char vlan_fullname[]; 129 extern const char vlan_version[]; 130 extern int vlan_netlink_init(void); 131 extern void vlan_netlink_fini(void); 132 133 extern struct rtnl_link_ops vlan_link_ops; 134 135 static inline int is_vlan_dev(struct net_device *dev) 136 { 137 return dev->priv_flags & IFF_802_1Q_VLAN; 138 } 139 140 extern int vlan_net_id; 141 142 struct proc_dir_entry; 143 144 struct vlan_net { 145 /* /proc/net/vlan */ 146 struct proc_dir_entry *proc_vlan_dir; 147 /* /proc/net/vlan/config */ 148 struct proc_dir_entry *proc_vlan_conf; 149 /* Determines interface naming scheme. */ 150 unsigned short name_type; 151 }; 152 153 #endif /* !(__BEN_VLAN_802_1Q_INC__) */ 154