Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __BEN_VLAN_802_1Q_INC__ |
| 2 | #define __BEN_VLAN_802_1Q_INC__ |
| 3 | |
| 4 | #include <linux/if_vlan.h> |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 5 | #include <linux/u64_stats_sync.h> |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 6 | #include <linux/list.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 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; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 17 | u16 vlan_qos; |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 18 | struct vlan_priority_tci_mapping *next; |
| 19 | }; |
| 20 | |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 21 | |
| 22 | /** |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 23 | * struct vlan_pcpu_stats - VLAN percpu rx/tx stats |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 24 | * @rx_packets: number of received packets |
| 25 | * @rx_bytes: number of received bytes |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 26 | * @rx_multicast: number of received multicast packets |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 27 | * @tx_packets: number of transmitted packets |
| 28 | * @tx_bytes: number of transmitted bytes |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 29 | * @syncp: synchronization point for 64bit counters |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 30 | * @rx_errors: number of rx errors |
| 31 | * @tx_dropped: number of tx drops |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 32 | */ |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 33 | struct vlan_pcpu_stats { |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 34 | u64 rx_packets; |
| 35 | u64 rx_bytes; |
| 36 | u64 rx_multicast; |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 37 | u64 tx_packets; |
| 38 | u64 tx_bytes; |
Eric Dumazet | 9618e2f | 2010-06-24 00:55:06 +0000 | [diff] [blame] | 39 | struct u64_stats_sync syncp; |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 40 | u32 rx_errors; |
| 41 | u32 tx_dropped; |
Eric Dumazet | 9793241 | 2009-11-17 04:53:09 +0000 | [diff] [blame] | 42 | }; |
| 43 | |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 44 | struct netpoll; |
| 45 | |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 46 | /** |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 47 | * struct vlan_dev_priv - VLAN private device data |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 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 |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 52 | * @vlan_proto: VLAN encapsulation protocol |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 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 |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 58 | * @vlan_pcpu_stats: ptr to percpu rx stats |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 59 | */ |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 60 | struct vlan_dev_priv { |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 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]; |
| 65 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 66 | __be16 vlan_proto; |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 67 | u16 vlan_id; |
| 68 | u16 flags; |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 69 | |
| 70 | struct net_device *real_dev; |
| 71 | unsigned char real_dev_addr[ETH_ALEN]; |
| 72 | |
| 73 | struct proc_dir_entry *dent; |
Eric Dumazet | 4af429d | 2010-11-10 23:42:00 +0000 | [diff] [blame] | 74 | struct vlan_pcpu_stats __percpu *vlan_pcpu_stats; |
Benjamin LaHaise | 6d4cdf4 | 2011-12-08 06:20:49 +0000 | [diff] [blame] | 75 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 76 | struct netpoll *netpoll; |
| 77 | #endif |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 78 | }; |
| 79 | |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 80 | static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) |
Patrick McHardy | 22d1ba7 | 2008-07-08 03:23:57 -0700 | [diff] [blame] | 81 | { |
| 82 | return netdev_priv(dev); |
| 83 | } |
| 84 | |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 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. |
| 88 | */ |
| 89 | #define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 |
| 90 | #define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS) |
| 91 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 92 | enum vlan_protos { |
| 93 | VLAN_PROTO_8021Q = 0, |
| 94 | VLAN_PROTO_NUM, |
| 95 | }; |
| 96 | |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 97 | struct vlan_group { |
| 98 | unsigned int nr_vlan_devs; |
| 99 | struct hlist_node hlist; /* linked list */ |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 100 | struct net_device **vlan_devices_arrays[VLAN_PROTO_NUM] |
| 101 | [VLAN_GROUP_ARRAY_SPLIT_PARTS]; |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 102 | }; |
| 103 | |
| 104 | struct vlan_info { |
| 105 | struct net_device *real_dev; /* The ethernet(like) device |
| 106 | * the vlan is attached to. |
| 107 | */ |
| 108 | struct vlan_group grp; |
| 109 | struct list_head vid_list; |
| 110 | unsigned int nr_vids; |
| 111 | struct rcu_head rcu; |
| 112 | }; |
| 113 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 114 | static inline unsigned int vlan_proto_idx(__be16 proto) |
| 115 | { |
| 116 | switch (proto) { |
| 117 | case __constant_htons(ETH_P_8021Q): |
| 118 | return VLAN_PROTO_8021Q; |
| 119 | default: |
| 120 | BUG(); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | static inline struct net_device *__vlan_group_get_device(struct vlan_group *vg, |
| 125 | unsigned int pidx, |
| 126 | u16 vlan_id) |
Jiri Pirko | 536d1d4 | 2011-07-20 04:54:49 +0000 | [diff] [blame] | 127 | { |
| 128 | struct net_device **array; |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 129 | |
| 130 | array = vg->vlan_devices_arrays[pidx] |
| 131 | [vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; |
Jiri Pirko | 536d1d4 | 2011-07-20 04:54:49 +0000 | [diff] [blame] | 132 | return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL; |
| 133 | } |
| 134 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 135 | static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, |
| 136 | __be16 vlan_proto, |
| 137 | u16 vlan_id) |
| 138 | { |
| 139 | return __vlan_group_get_device(vg, vlan_proto_idx(vlan_proto), vlan_id); |
| 140 | } |
| 141 | |
Jiri Pirko | 536d1d4 | 2011-07-20 04:54:49 +0000 | [diff] [blame] | 142 | static inline void vlan_group_set_device(struct vlan_group *vg, |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 143 | __be16 vlan_proto, u16 vlan_id, |
Jiri Pirko | 536d1d4 | 2011-07-20 04:54:49 +0000 | [diff] [blame] | 144 | struct net_device *dev) |
| 145 | { |
| 146 | struct net_device **array; |
| 147 | if (!vg) |
| 148 | return; |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 149 | array = vg->vlan_devices_arrays[vlan_proto_idx(vlan_proto)] |
| 150 | [vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; |
Jiri Pirko | 536d1d4 | 2011-07-20 04:54:49 +0000 | [diff] [blame] | 151 | array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; |
| 152 | } |
| 153 | |
David Lamparter | 69ecca8 | 2011-07-17 08:53:12 +0000 | [diff] [blame] | 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, |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 156 | __be16 vlan_proto, u16 vlan_id) |
David Lamparter | 69ecca8 | 2011-07-17 08:53:12 +0000 | [diff] [blame] | 157 | { |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 158 | struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info); |
David Lamparter | 69ecca8 | 2011-07-17 08:53:12 +0000 | [diff] [blame] | 159 | |
Jiri Pirko | 5b9ea6e | 2011-12-08 04:11:18 +0000 | [diff] [blame] | 160 | if (vlan_info) |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 161 | return vlan_group_get_device(&vlan_info->grp, |
| 162 | vlan_proto, vlan_id); |
David Lamparter | 69ecca8 | 2011-07-17 08:53:12 +0000 | [diff] [blame] | 163 | |
| 164 | return NULL; |
| 165 | } |
| 166 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 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, \ |
| 170 | (i) % VLAN_N_VID))) |
| 171 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | /* found in vlan_dev.c */ |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 173 | void vlan_dev_set_ingress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 174 | u32 skb_prio, u16 vlan_prio); |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 175 | int vlan_dev_set_egress_priority(const struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 176 | u32 skb_prio, u16 vlan_prio); |
Patrick McHardy | b3ce032 | 2008-07-05 21:26:27 -0700 | [diff] [blame] | 177 | int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask); |
Patrick McHardy | c17d887 | 2007-06-13 12:05:22 -0700 | [diff] [blame] | 178 | void vlan_dev_get_realdev_name(const struct net_device *dev, char *result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | |
Patrick McHardy | 1fd9b1f | 2013-04-19 02:04:29 +0000 | [diff] [blame^] | 180 | int vlan_check_real_dev(struct net_device *real_dev, |
| 181 | __be16 protocol, u16 vlan_id); |
Patrick McHardy | 07b5b17 | 2007-06-13 12:07:54 -0700 | [diff] [blame] | 182 | void vlan_setup(struct net_device *dev); |
| 183 | int register_vlan_dev(struct net_device *dev); |
Eric Dumazet | 23289a3 | 2009-10-27 07:06:36 +0000 | [diff] [blame] | 184 | void unregister_vlan_dev(struct net_device *dev, struct list_head *head); |
Patrick McHardy | 07b5b17 | 2007-06-13 12:07:54 -0700 | [diff] [blame] | 185 | |
Patrick McHardy | 7750f40 | 2008-07-08 03:23:36 -0700 | [diff] [blame] | 186 | static inline u32 vlan_get_ingress_priority(struct net_device *dev, |
Patrick McHardy | 9bb8582 | 2008-07-08 03:24:44 -0700 | [diff] [blame] | 187 | u16 vlan_tci) |
Patrick McHardy | 7750f40 | 2008-07-08 03:23:36 -0700 | [diff] [blame] | 188 | { |
Jiri Pirko | 7da82c0 | 2011-12-08 04:11:15 +0000 | [diff] [blame] | 189 | struct vlan_dev_priv *vip = vlan_dev_priv(dev); |
Patrick McHardy | 7750f40 | 2008-07-08 03:23:36 -0700 | [diff] [blame] | 190 | |
Eric Dumazet | 05423b2 | 2009-10-26 18:40:35 -0700 | [diff] [blame] | 191 | return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7]; |
Patrick McHardy | 7750f40 | 2008-07-08 03:23:36 -0700 | [diff] [blame] | 192 | } |
| 193 | |
Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 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); |
| 201 | #else |
| 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) {} |
| 208 | #endif |
| 209 | |
David Ward | 86fbe9b | 2013-02-08 17:17:07 +0000 | [diff] [blame] | 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); |
| 217 | #else |
| 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) {} |
| 224 | #endif |
| 225 | |
Stephen Hemminger | b3020061 | 2008-10-28 22:12:36 -0700 | [diff] [blame] | 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); |
Patrick McHardy | 07b5b17 | 2007-06-13 12:07:54 -0700 | [diff] [blame] | 230 | |
| 231 | extern struct rtnl_link_ops vlan_link_ops; |
| 232 | |
Pavel Emelyanov | d9ed0f0 | 2008-04-16 00:49:09 -0700 | [diff] [blame] | 233 | extern int vlan_net_id; |
| 234 | |
Pavel Emelyanov | a59a8c1 | 2008-04-16 00:51:51 -0700 | [diff] [blame] | 235 | struct proc_dir_entry; |
| 236 | |
Pavel Emelyanov | d9ed0f0 | 2008-04-16 00:49:09 -0700 | [diff] [blame] | 237 | struct vlan_net { |
Pavel Emelyanov | a59a8c1 | 2008-04-16 00:51:51 -0700 | [diff] [blame] | 238 | /* /proc/net/vlan */ |
| 239 | struct proc_dir_entry *proc_vlan_dir; |
| 240 | /* /proc/net/vlan/config */ |
| 241 | struct proc_dir_entry *proc_vlan_conf; |
Pavel Emelyanov | 7a17a2f | 2008-04-16 00:54:39 -0700 | [diff] [blame] | 242 | /* Determines interface naming scheme. */ |
| 243 | unsigned short name_type; |
Pavel Emelyanov | d9ed0f0 | 2008-04-16 00:49:09 -0700 | [diff] [blame] | 244 | }; |
| 245 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | #endif /* !(__BEN_VLAN_802_1Q_INC__) */ |