net: dsa: Move skb_unshare() to dsa_switch_rcv()

[mirror_ubuntu-jammy-kernel.git] / net / dsa / dsa_priv.h

/*
 * net/dsa/dsa_priv.h - Hardware switch handling
 * Copyright (c) 2008-2009 Marvell Semiconductor
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef __DSA_PRIV_H
#define __DSA_PRIV_H

#include <linux/phy.h>
#include <linux/netdevice.h>
#include <linux/netpoll.h>

struct dsa_device_ops {
	struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);
	int (*rcv)(struct sk_buff *skb, struct net_device *dev,
		   struct packet_type *pt, struct net_device *orig_dev);
};

struct dsa_slave_priv {
	struct sk_buff *	(*xmit)(struct sk_buff *skb,
					struct net_device *dev);

	/* DSA port data, such as switch, port index, etc. */
	struct dsa_port		*dp;

	/*
	 * The phylib phy_device pointer for the PHY connected
	 * to this port.
	 */
	struct phy_device	*phy;
	phy_interface_t		phy_interface;
	int			old_link;
	int			old_pause;
	int			old_duplex;

#ifdef CONFIG_NET_POLL_CONTROLLER
	struct netpoll		*netpoll;
#endif

	/* TC context */
	struct list_head	mall_tc_list;
};

/* dsa.c */
int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev,
		      struct dsa_port *dport, int port);
void dsa_cpu_dsa_destroy(struct dsa_port *dport);
const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
int dsa_cpu_port_ethtool_setup(struct dsa_switch *ds);
void dsa_cpu_port_ethtool_restore(struct dsa_switch *ds);

/* slave.c */
extern const struct dsa_device_ops notag_netdev_ops;
void dsa_slave_mii_bus_init(struct dsa_switch *ds);
void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops);
int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
		     int port, const char *name);
void dsa_slave_destroy(struct net_device *slave_dev);
int dsa_slave_suspend(struct net_device *slave_dev);
int dsa_slave_resume(struct net_device *slave_dev);
int dsa_slave_register_notifier(void);
void dsa_slave_unregister_notifier(void);

/* switch.c */
int dsa_switch_register_notifier(struct dsa_switch *ds);
void dsa_switch_unregister_notifier(struct dsa_switch *ds);

/* tag_dsa.c */
extern const struct dsa_device_ops dsa_netdev_ops;

/* tag_edsa.c */
extern const struct dsa_device_ops edsa_netdev_ops;

/* tag_trailer.c */
extern const struct dsa_device_ops trailer_netdev_ops;

/* tag_brcm.c */
extern const struct dsa_device_ops brcm_netdev_ops;

/* tag_qca.c */
extern const struct dsa_device_ops qca_netdev_ops;

/* tag_mtk.c */
extern const struct dsa_device_ops mtk_netdev_ops;

#endif