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/types.h>
   9
  10 struct dsa_switch;
  11 struct sk_buff;
  12 struct net_device;
  13 struct packet_type;
  14
  15 struct dsa_8021q_crosschip_link {
  16         struct list_head list;
  17         int port;
  18         struct dsa_switch *other_ds;
  19         int other_port;
  20         refcount_t refcount;
  21 };
  22
  23 #define DSA_8021Q_N_SUBVLAN                     8
  24
  25 #if IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q)
  26
  27 int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int index,
  28                                  bool enabled);
  29
  30 int dsa_8021q_crosschip_bridge_join(struct dsa_switch *ds, int port,
  31                                     struct dsa_switch *other_ds,
  32                                     int other_port,
  33                                     struct list_head *crosschip_links);
  34
  35 int dsa_8021q_crosschip_bridge_leave(struct dsa_switch *ds, int port,
  36                                      struct dsa_switch *other_ds,
  37                                      int other_port,
  38                                      struct list_head *crosschip_links);
  39
  40 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
  41                                u16 tpid, u16 tci);
  42
  43 u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port);
  44
  45 u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port);
  46
  47 u16 dsa_8021q_rx_vid_subvlan(struct dsa_switch *ds, int port, u16 subvlan);
  48
  49 int dsa_8021q_rx_switch_id(u16 vid);
  50
  51 int dsa_8021q_rx_source_port(u16 vid);
  52
  53 u16 dsa_8021q_rx_subvlan(u16 vid);
  54
  55 bool vid_is_dsa_8021q(u16 vid);
  56
  57 #else
  58
  59 int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int index,
  60                                  bool enabled)
  61 {
  62         return 0;
  63 }
  64
  65 int dsa_8021q_crosschip_bridge_join(struct dsa_switch *ds, int port,
  66                                     struct dsa_switch *other_ds,
  67                                     int other_port,
  68                                     struct list_head *crosschip_links)
  69 {
  70         return 0;
  71 }
  72
  73 int dsa_8021q_crosschip_bridge_leave(struct dsa_switch *ds, int port,
  74                                      struct dsa_switch *other_ds,
  75                                      int other_port,
  76                                      struct list_head *crosschip_links)
  77 {
  78         return 0;
  79 }
  80
  81 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
  82                                u16 tpid, u16 tci)
  83 {
  84         return NULL;
  85 }
  86
  87 u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port)
  88 {
  89         return 0;
  90 }
  91
  92 u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port)
  93 {
  94         return 0;
  95 }
  96
  97 u16 dsa_8021q_rx_vid_subvlan(struct dsa_switch *ds, int port, u16 subvlan)
  98 {
  99         return 0;
 100 }
 101
 102 int dsa_8021q_rx_switch_id(u16 vid)
 103 {
 104         return 0;
 105 }
 106
 107 int dsa_8021q_rx_source_port(u16 vid)
 108 {
 109         return 0;
 110 }
 111
 112 u16 dsa_8021q_rx_subvlan(u16 vid)
 113 {
 114         return 0;
 115 }
 116
 117 bool vid_is_dsa_8021q(u16 vid)
 118 {
 119         return false;
 120 }
 121
 122 #endif /* IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) */
 123
 124 #endif /* _NET_DSA_8021Q_H */