include/linux/dsa/8021q.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  * Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
   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
  11 struct dsa_switch;
  12 struct dsa_port;
  13 struct sk_buff;
  14 struct net_device;
  15
  16 struct dsa_tag_8021q_vlan {
  17         struct list_head list;
  18         int port;
  19         u16 vid;
  20         refcount_t refcount;
  21 };
  22
  23 struct dsa_8021q_context {
  24         struct dsa_switch *ds;
  25         struct list_head vlans;
  26         /* EtherType of RX VID, used for filtering on master interface */
  27         __be16 proto;
  28 };
  29
  30 int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto);
  31
  32 void dsa_tag_8021q_unregister(struct dsa_switch *ds);
  33
  34 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
  35                                u16 tpid, u16 tci);
  36
  37 void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id);
  38
  39 int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port,
  40                                         struct net_device *br,
  41                                         int bridge_num);
  42
  43 void dsa_tag_8021q_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port,
  44                                            struct net_device *br,
  45                                            int bridge_num);
  46
  47 u16 dsa_8021q_bridge_tx_fwd_offload_vid(int bridge_num);
  48
  49 u16 dsa_tag_8021q_tx_vid(const struct dsa_port *dp);
  50
  51 u16 dsa_tag_8021q_rx_vid(const struct dsa_port *dp);
  52
  53 int dsa_8021q_rx_switch_id(u16 vid);
  54
  55 int dsa_8021q_rx_source_port(u16 vid);
  56
  57 bool vid_is_dsa_8021q_rxvlan(u16 vid);
  58
  59 bool vid_is_dsa_8021q_txvlan(u16 vid);
  60
  61 bool vid_is_dsa_8021q(u16 vid);
  62
  63 #endif /* _NET_DSA_8021Q_H */