include/linux/dsa/8021q.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  * Copyright (c) 2019, Vladimir Oltean <[email protected]>
   3  */
   4
   5 #ifndef _NET_DSA_8021Q_H
   6 #define _NET_DSA_8021Q_H
   7
   8 #include <linux/refcount.h>
   9 #include <linux/types.h>
  10 #include <net/dsa.h>
  11
  12 struct dsa_switch;
  13 struct dsa_port;
  14 struct sk_buff;
  15 struct net_device;
  16
  17 struct dsa_tag_8021q_vlan {
  18         struct list_head list;
  19         int port;
  20         u16 vid;
  21         refcount_t refcount;
  22 };
  23
  24 struct dsa_8021q_context {
  25         struct dsa_switch *ds;
  26         struct list_head vlans;
  27         /* EtherType of RX VID, used for filtering on master interface */
  28         __be16 proto;
  29 };
  30
  31 int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto);
  32
  33 void dsa_tag_8021q_unregister(struct dsa_switch *ds);
  34
  35 int dsa_tag_8021q_bridge_join(struct dsa_switch *ds, int port,
  36                               struct dsa_bridge bridge);
  37
  38 void dsa_tag_8021q_bridge_leave(struct dsa_switch *ds, int port,
  39                                 struct dsa_bridge bridge);
  40
  41 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
  42                                u16 tpid, u16 tci);
  43
  44 void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id,
  45                    int *vbid);
  46
  47 struct net_device *dsa_tag_8021q_find_port_by_vbid(struct net_device *master,
  48                                                    int vbid);
  49
  50 u16 dsa_tag_8021q_bridge_vid(unsigned int bridge_num);
  51
  52 u16 dsa_tag_8021q_standalone_vid(const struct dsa_port *dp);
  53
  54 int dsa_8021q_rx_switch_id(u16 vid);
  55
  56 int dsa_8021q_rx_source_port(u16 vid);
  57
  58 bool vid_is_dsa_8021q(u16 vid);
  59
  60 #endif /* _NET_DSA_8021Q_H */