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 #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 */ 61