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 sk_buff; 13 struct net_device; 14 15 struct dsa_tag_8021q_vlan { 16 struct list_head list; 17 int port; 18 u16 vid; 19 refcount_t refcount; 20 }; 21 22 struct dsa_8021q_context { 23 struct dsa_switch *ds; 24 struct list_head vlans; 25 /* EtherType of RX VID, used for filtering on master interface */ 26 __be16 proto; 27 }; 28 29 int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto); 30 31 void dsa_tag_8021q_unregister(struct dsa_switch *ds); 32 33 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev, 34 u16 tpid, u16 tci); 35 36 void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id); 37 38 int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port, 39 struct net_device *br, 40 int bridge_num); 41 42 void dsa_tag_8021q_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port, 43 struct net_device *br, 44 int bridge_num); 45 46 u16 dsa_8021q_bridge_tx_fwd_offload_vid(int bridge_num); 47 48 u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port); 49 50 u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port); 51 52 int dsa_8021q_rx_switch_id(u16 vid); 53 54 int dsa_8021q_rx_source_port(u16 vid); 55 56 bool vid_is_dsa_8021q_rxvlan(u16 vid); 57 58 bool vid_is_dsa_8021q_txvlan(u16 vid); 59 60 bool vid_is_dsa_8021q(u16 vid); 61 62 #endif /* _NET_DSA_8021Q_H */ 63
