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/* SPDX-License-Identifier: GPL-2.0
* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
*/
#ifndef _NET_DSA_8021Q_H
#define _NET_DSA_8021Q_H
#include <linux/refcount.h>
#include <linux/types.h>
struct dsa_switch;
struct sk_buff;
struct net_device;
struct packet_type;
struct dsa_8021q_context;
struct dsa_8021q_crosschip_link {
struct list_head list;
int port;
struct dsa_8021q_context *other_ctx;
int other_port;
refcount_t refcount;
};
struct dsa_8021q_ops {
int (*vlan_add)(struct dsa_switch *ds, int port, u16 vid, u16 flags);
int (*vlan_del)(struct dsa_switch *ds, int port, u16 vid);
};
struct dsa_8021q_context {
const struct dsa_8021q_ops *ops;
struct dsa_switch *ds;
struct list_head crosschip_links;
/* EtherType of RX VID, used for filtering on master interface */
__be16 proto;
};
#define DSA_8021Q_N_SUBVLAN 8
#if IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q)
int dsa_8021q_setup(struct dsa_8021q_context *ctx, bool enabled);
int dsa_8021q_crosschip_bridge_join(struct dsa_8021q_context *ctx, int port,
struct dsa_8021q_context *other_ctx,
int other_port);
int dsa_8021q_crosschip_bridge_leave(struct dsa_8021q_context *ctx, int port,
struct dsa_8021q_context *other_ctx,
int other_port);
struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
u16 tpid, u16 tci);
u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port);
u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port);
u16 dsa_8021q_rx_vid_subvlan(struct dsa_switch *ds, int port, u16 subvlan);
int dsa_8021q_rx_switch_id(u16 vid);
int dsa_8021q_rx_source_port(u16 vid);
u16 dsa_8021q_rx_subvlan(u16 vid);
bool vid_is_dsa_8021q(u16 vid);
#else
int dsa_8021q_setup(struct dsa_8021q_context *ctx, bool enabled)
{
return 0;
}
int dsa_8021q_crosschip_bridge_join(struct dsa_8021q_context *ctx, int port,
struct dsa_8021q_context *other_ctx,
int other_port)
{
return 0;
}
int dsa_8021q_crosschip_bridge_leave(struct dsa_8021q_context *ctx, int port,
struct dsa_8021q_context *other_ctx,
int other_port)
{
return 0;
}
struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
u16 tpid, u16 tci)
{
return NULL;
}
u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port)
{
return 0;
}
u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port)
{
return 0;
}
u16 dsa_8021q_rx_vid_subvlan(struct dsa_switch *ds, int port, u16 subvlan)
{
return 0;
}
int dsa_8021q_rx_switch_id(u16 vid)
{
return 0;
}
int dsa_8021q_rx_source_port(u16 vid)
{
return 0;
}
u16 dsa_8021q_rx_subvlan(u16 vid)
{
return 0;
}
bool vid_is_dsa_8021q(u16 vid)
{
return false;
}
#endif /* IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) */
#endif /* _NET_DSA_8021Q_H */
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