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Version: 2.6.32 2.6.33 2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9
Architecture: x86 arm avr32 blackfin m68k m68knommu microblaze mips powerpc sh
1 #ifndef __BEN_VLAN_802_1Q_INC__ 2 #define __BEN_VLAN_802_1Q_INC__ 3 4 #include <linux/if_vlan.h> 5 #include <linux/u64_stats_sync.h> 6 #include <linux/list.h> 7 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; 17 u16 vlan_qos; 18 struct vlan_priority_tci_mapping *next; 19 }; 20 21 22 /** 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 32 */ 33 struct vlan_pcpu_stats { 34 u64 rx_packets; 35 u64 rx_bytes; 36 u64 rx_multicast; 37 u64 tx_packets; 38 u64 tx_bytes; 39 struct u64_stats_sync syncp; 40 u32 rx_errors; 41 u32 tx_dropped; 42 }; 43 44 struct netpoll; 45 46 /** 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_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 57 * @vlan_pcpu_stats: ptr to percpu rx stats 58 */ 59 struct vlan_dev_priv { 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 65 u16 vlan_id; 66 u16 flags; 67 68 struct net_device *real_dev; 69 unsigned char real_dev_addr[ETH_ALEN]; 70 71 struct proc_dir_entry *dent; 72 struct vlan_pcpu_stats __percpu *vlan_pcpu_stats; 73 #ifdef CONFIG_NET_POLL_CONTROLLER 74 struct netpoll *netpoll; 75 #endif 76 }; 77 78 static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) 79 { 80 return netdev_priv(dev); 81 } 82 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 }; 105 106 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 } 124 125 /* 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 { 129 struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); 130 131 if (vlan_info) 132 return vlan_group_get_device(&vlan_info->grp, vlan_id); 133 134 return NULL; 135 } 136 137 /* found in vlan_dev.c */ 138 void vlan_dev_set_ingress_priority(const struct net_device *dev, 139 u32 skb_prio, u16 vlan_prio); 140 int vlan_dev_set_egress_priority(const struct net_device *dev, 141 u32 skb_prio, u16 vlan_prio); 142 int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); 143 void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); 144 145 int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id); 146 void vlan_setup(struct net_device *dev); 147 int register_vlan_dev(struct net_device *dev); 148 void unregister_vlan_dev(struct net_device *dev, struct list_head *head); 149 150 static inline u32 vlan_get_ingress_priority(struct net_device *dev, 151 u16 vlan_tci) 152 { 153 struct vlan_dev_priv *vip = vlan_dev_priv(dev); 154 155 return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; 156 } 157 158 #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 173 174 #ifdef CONFIG_VLAN_8021Q_MVRP 175 extern int vlan_mvrp_request_join(const struct net_device *dev); 176 extern void vlan_mvrp_request_leave(const struct net_device *dev); 177 extern int vlan_mvrp_init_applicant(struct net_device *dev); 178 extern void vlan_mvrp_uninit_applicant(struct net_device *dev); 179 extern int vlan_mvrp_init(void); 180 extern void vlan_mvrp_uninit(void); 181 #else 182 static inline int vlan_mvrp_request_join(const struct net_device *dev) { return 0; } 183 static inline void vlan_mvrp_request_leave(const struct net_device *dev) {} 184 static inline int vlan_mvrp_init_applicant(struct net_device *dev) { return 0; } 185 static inline void vlan_mvrp_uninit_applicant(struct net_device *dev) {} 186 static inline int vlan_mvrp_init(void) { return 0; } 187 static inline void vlan_mvrp_uninit(void) {} 188 #endif 189 190 extern const char vlan_fullname[]; 191 extern const char vlan_version[]; 192 extern int vlan_netlink_init(void); 193 extern void vlan_netlink_fini(void); 194 195 extern struct rtnl_link_ops vlan_link_ops; 196 197 extern int vlan_net_id; 198 199 struct proc_dir_entry; 200 201 struct vlan_net { 202 /* /proc/net/vlan */ 203 struct proc_dir_entry *proc_vlan_dir; 204 /* /proc/net/vlan/config */ 205 struct proc_dir_entry *proc_vlan_conf; 206 /* Determines interface naming scheme. */ 207 unsigned short name_type; 208 }; 209 210 #endif /* !(__BEN_VLAN_802_1Q_INC__) */ 211
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