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 11 struct dsa_switch; 12 struct sk_buff; 13 struct net_device; 14 struct dsa_8021q_context; 15 16 struct dsa_8021q_crosschip_link { 17 struct list_head list; 18 int port; 19 struct dsa_8021q_context *other_ctx; 20 int other_port; 21 refcount_t refcount; 22 }; 23 24 struct dsa_8021q_context { 25 struct dsa_switch *ds; 26 struct list_head crosschip_links; 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_8021q_crosschip_bridge_join(struct dsa_switch *ds, int port, 36 struct dsa_switch *other_ds, 37 int other_port); 38 39 int dsa_8021q_crosschip_bridge_leave(struct dsa_switch *ds, int port, 40 struct dsa_switch *other_ds, 41 int other_port); 42 43 struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev, 44 u16 tpid, u16 tci); 45 46 void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id); 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