[linux.git] / include / net / dsa.h

/*
 * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
 * 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 __LINUX_NET_DSA_H
#define __LINUX_NET_DSA_H

#include <linux/if_ether.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/ethtool.h>

enum dsa_tag_protocol {
	DSA_TAG_PROTO_NONE = 0,
	DSA_TAG_PROTO_DSA,
	DSA_TAG_PROTO_TRAILER,
	DSA_TAG_PROTO_EDSA,
	DSA_TAG_PROTO_BRCM,
};

#define DSA_MAX_SWITCHES	4
#define DSA_MAX_PORTS		12

struct dsa_chip_data {
	/*
	 * How to access the switch configuration registers.
	 */
	struct device	*host_dev;
	int		sw_addr;

	/* set to size of eeprom if supported by the switch */
	int		eeprom_len;

	/* Device tree node pointer for this specific switch chip
	 * used during switch setup in case additional properties
	 * and resources needs to be used
	 */
	struct device_node *of_node;

	/*
	 * The names of the switch's ports.  Use "cpu" to
	 * designate the switch port that the cpu is connected to,
	 * "dsa" to indicate that this port is a DSA link to
	 * another switch, NULL to indicate the port is unused,
	 * or any other string to indicate this is a physical port.
	 */
	char		*port_names[DSA_MAX_PORTS];
	struct device_node *port_dn[DSA_MAX_PORTS];

	/*
	 * An array (with nr_chips elements) of which element [a]
	 * indicates which port on this switch should be used to
	 * send packets to that are destined for switch a.  Can be
	 * NULL if there is only one switch chip.
	 */
	s8		*rtable;

	/*
	 * A switch may have a GPIO line tied to its reset pin. Parse
	 * this from the device tree, and use it before performing
	 * switch soft reset.
	 */
	struct gpio_desc *reset;
};

struct dsa_platform_data {
	/*
	 * Reference to a Linux network interface that connects
	 * to the root switch chip of the tree.
	 */
	struct device	*netdev;
	struct net_device *of_netdev;

	/*
	 * Info structs describing each of the switch chips
	 * connected via this network interface.
	 */
	int		nr_chips;
	struct dsa_chip_data	*chip;
};

struct packet_type;

struct dsa_switch_tree {
	/*
	 * Configuration data for the platform device that owns
	 * this dsa switch tree instance.
	 */
	struct dsa_platform_data	*pd;

	/*
	 * Reference to network device to use, and which tagging
	 * protocol to use.
	 */
	struct net_device	*master_netdev;
	int			(*rcv)(struct sk_buff *skb,
				       struct net_device *dev,
				       struct packet_type *pt,
				       struct net_device *orig_dev);
	enum dsa_tag_protocol	tag_protocol;

	/*
	 * The switch and port to which the CPU is attached.
	 */
	s8			cpu_switch;
	s8			cpu_port;

	/*
	 * Data for the individual switch chips.
	 */
	struct dsa_switch	*ds[DSA_MAX_SWITCHES];
};

struct dsa_switch {
	/*
	 * Parent switch tree, and switch index.
	 */
	struct dsa_switch_tree	*dst;
	int			index;

	/*
	 * Tagging protocol understood by this switch
	 */
	enum dsa_tag_protocol	tag_protocol;

	/*
	 * Configuration data for this switch.
	 */
	struct dsa_chip_data	*pd;

	/*
	 * The used switch driver.
	 */
	struct dsa_switch_driver	*drv;

	/*
	 * Reference to host device to use.
	 */
	struct device		*master_dev;

#ifdef CONFIG_NET_DSA_HWMON
	/*
	 * Hardware monitoring information
	 */
	char			hwmon_name[IFNAMSIZ + 8];
	struct device		*hwmon_dev;
#endif

	/*
	 * Slave mii_bus and devices for the individual ports.
	 */
	u32			dsa_port_mask;
	u32			phys_port_mask;
	u32			phys_mii_mask;
	struct mii_bus		*slave_mii_bus;
	struct net_device	*ports[DSA_MAX_PORTS];
};

static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
{
	return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
}

static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
{
	return !!((ds->dsa_port_mask) & (1 << p));
}

static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
{
	return ds->phys_port_mask & (1 << p) && ds->ports[p];
}

static inline u8 dsa_upstream_port(struct dsa_switch *ds)
{
	struct dsa_switch_tree *dst = ds->dst;

	/*
	 * If this is the root switch (i.e. the switch that connects
	 * to the CPU), return the cpu port number on this switch.
	 * Else return the (DSA) port number that connects to the
	 * switch that is one hop closer to the cpu.
	 */
	if (dst->cpu_switch == ds->index)
		return dst->cpu_port;
	else
		return ds->pd->rtable[dst->cpu_switch];
}

struct switchdev_trans;
struct switchdev_obj;
struct switchdev_obj_port_fdb;
struct switchdev_obj_port_vlan;

struct dsa_switch_driver {
	struct list_head	list;

	enum dsa_tag_protocol	tag_protocol;
	int			priv_size;

	/*
	 * Probing and setup.
	 */
	char	*(*probe)(struct device *host_dev, int sw_addr);
	int	(*setup)(struct dsa_switch *ds);
	int	(*set_addr)(struct dsa_switch *ds, u8 *addr);
	u32	(*get_phy_flags)(struct dsa_switch *ds, int port);

	/*
	 * Access to the switch's PHY registers.
	 */
	int	(*phy_read)(struct dsa_switch *ds, int port, int regnum);
	int	(*phy_write)(struct dsa_switch *ds, int port,
			     int regnum, u16 val);

	/*
	 * Link state adjustment (called from libphy)
	 */
	void	(*adjust_link)(struct dsa_switch *ds, int port,
				struct phy_device *phydev);
	void	(*fixed_link_update)(struct dsa_switch *ds, int port,
				struct fixed_phy_status *st);

	/*
	 * ethtool hardware statistics.
	 */
	void	(*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
	void	(*get_ethtool_stats)(struct dsa_switch *ds,
				     int port, uint64_t *data);
	int	(*get_sset_count)(struct dsa_switch *ds);

	/*
	 * ethtool Wake-on-LAN
	 */
	void	(*get_wol)(struct dsa_switch *ds, int port,
			   struct ethtool_wolinfo *w);
	int	(*set_wol)(struct dsa_switch *ds, int port,
			   struct ethtool_wolinfo *w);

	/*
	 * Suspend and resume
	 */
	int	(*suspend)(struct dsa_switch *ds);
	int	(*resume)(struct dsa_switch *ds);

	/*
	 * Port enable/disable
	 */
	int	(*port_enable)(struct dsa_switch *ds, int port,
			       struct phy_device *phy);
	void	(*port_disable)(struct dsa_switch *ds, int port,
				struct phy_device *phy);

	/*
	 * EEE setttings
	 */
	int	(*set_eee)(struct dsa_switch *ds, int port,
			   struct phy_device *phydev,
			   struct ethtool_eee *e);
	int	(*get_eee)(struct dsa_switch *ds, int port,
			   struct ethtool_eee *e);

#ifdef CONFIG_NET_DSA_HWMON
	/* Hardware monitoring */
	int	(*get_temp)(struct dsa_switch *ds, int *temp);
	int	(*get_temp_limit)(struct dsa_switch *ds, int *temp);
	int	(*set_temp_limit)(struct dsa_switch *ds, int temp);
	int	(*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
#endif

	/* EEPROM access */
	int	(*get_eeprom_len)(struct dsa_switch *ds);
	int	(*get_eeprom)(struct dsa_switch *ds,
			      struct ethtool_eeprom *eeprom, u8 *data);
	int	(*set_eeprom)(struct dsa_switch *ds,
			      struct ethtool_eeprom *eeprom, u8 *data);

	/*
	 * Register access.
	 */
	int	(*get_regs_len)(struct dsa_switch *ds, int port);
	void	(*get_regs)(struct dsa_switch *ds, int port,
			    struct ethtool_regs *regs, void *p);

	/*
	 * Bridge integration
	 */
	int	(*port_bridge_join)(struct dsa_switch *ds, int port,
				    struct net_device *bridge);
	void	(*port_bridge_leave)(struct dsa_switch *ds, int port);
	int	(*port_stp_update)(struct dsa_switch *ds, int port,
				   u8 state);

	/*
	 * VLAN support
	 */
	int	(*port_vlan_filtering)(struct dsa_switch *ds, int port,
				       bool vlan_filtering);
	int	(*port_vlan_prepare)(struct dsa_switch *ds, int port,
				     const struct switchdev_obj_port_vlan *vlan,
				     struct switchdev_trans *trans);
	int	(*port_vlan_add)(struct dsa_switch *ds, int port,
				 const struct switchdev_obj_port_vlan *vlan,
				 struct switchdev_trans *trans);
	int	(*port_vlan_del)(struct dsa_switch *ds, int port,
				 const struct switchdev_obj_port_vlan *vlan);
	int	(*port_vlan_dump)(struct dsa_switch *ds, int port,
				  struct switchdev_obj_port_vlan *vlan,
				  int (*cb)(struct switchdev_obj *obj));

	/*
	 * Forwarding database
	 */
	int	(*port_fdb_prepare)(struct dsa_switch *ds, int port,
				    const struct switchdev_obj_port_fdb *fdb,
				    struct switchdev_trans *trans);
	int	(*port_fdb_add)(struct dsa_switch *ds, int port,
				const struct switchdev_obj_port_fdb *fdb,
				struct switchdev_trans *trans);
	int	(*port_fdb_del)(struct dsa_switch *ds, int port,
				const struct switchdev_obj_port_fdb *fdb);
	int	(*port_fdb_dump)(struct dsa_switch *ds, int port,
				 struct switchdev_obj_port_fdb *fdb,
				 int (*cb)(struct switchdev_obj *obj));
};

void register_switch_driver(struct dsa_switch_driver *type);
void unregister_switch_driver(struct dsa_switch_driver *type);
struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);

static inline void *ds_to_priv(struct dsa_switch *ds)
{
	return (void *)(ds + 1);
}

static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
{
	return dst->rcv != NULL;
}
#endif
Commit	Line	Data
91da11f8 LB	1	/*
91da11f8 LB	2	* include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
e84665c9	3	* Copyright (c) 2008-2009 Marvell Semiconductor
91da11f8 LB	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*/
	10
	11	#ifndef __LINUX_NET_DSA_H
	12	#define __LINUX_NET_DSA_H
	13
ea1f51be	14	#include <linux/if_ether.h>
c8f0b869	15	#include <linux/list.h>
cf50dcc2 BH	16	#include <linux/timer.h>
cf50dcc2 BH	17	#include <linux/workqueue.h>
fa981d9a	18	#include <linux/of.h>
cc30c163	19	#include <linux/of_gpio.h>
ec9436ba	20	#include <linux/phy.h>
ce31b31c	21	#include <linux/phy_fixed.h>
a2820543	22	#include <linux/ethtool.h>
cf50dcc2	23
ac7a04c3 FF	24	enum dsa_tag_protocol {
	25	DSA_TAG_PROTO_NONE = 0,
	26	DSA_TAG_PROTO_DSA,
	27	DSA_TAG_PROTO_TRAILER,
	28	DSA_TAG_PROTO_EDSA,
	29	DSA_TAG_PROTO_BRCM,
	30	};
5037d532	31
e84665c9 LB	32	#define DSA_MAX_SWITCHES 4
	33	#define DSA_MAX_PORTS 12
	34
	35	struct dsa_chip_data {
	36	/*
	37	* How to access the switch configuration registers.
	38	*/
b4d2394d	39	struct device *host_dev;
e84665c9 LB	40	int sw_addr;
e84665c9 LB	41
6793abb4 GR	42	/* set to size of eeprom if supported by the switch */
	43	int eeprom_len;
	44
fa981d9a FF	45	/* Device tree node pointer for this specific switch chip
	46	* used during switch setup in case additional properties
	47	* and resources needs to be used
	48	*/
	49	struct device_node *of_node;
	50
e84665c9 LB	51	/*
	52	* The names of the switch's ports. Use "cpu" to
	53	* designate the switch port that the cpu is connected to,
	54	* "dsa" to indicate that this port is a DSA link to
	55	* another switch, NULL to indicate the port is unused,
	56	* or any other string to indicate this is a physical port.
	57	*/
	58	char *port_names[DSA_MAX_PORTS];
bd47497a	59	struct device_node *port_dn[DSA_MAX_PORTS];
e84665c9 LB	60
	61	/*
	62	* An array (with nr_chips elements) of which element [a]
	63	* indicates which port on this switch should be used to
	64	* send packets to that are destined for switch a. Can be
	65	* NULL if there is only one switch chip.
	66	*/
	67	s8 *rtable;
cc30c163 AL	68
	69	/*
	70	* A switch may have a GPIO line tied to its reset pin. Parse
	71	* this from the device tree, and use it before performing
	72	* switch soft reset.
	73	*/
	74	struct gpio_desc *reset;
e84665c9	75	};
91da11f8 LB	76
	77	struct dsa_platform_data {
	78	/*
	79	* Reference to a Linux network interface that connects
e84665c9	80	* to the root switch chip of the tree.
91da11f8 LB	81	*/
91da11f8 LB	82	struct device *netdev;
769a0202	83	struct net_device *of_netdev;
91da11f8 LB	84
91da11f8 LB	85	/*
e84665c9 LB	86	* Info structs describing each of the switch chips
e84665c9 LB	87	* connected via this network interface.
91da11f8	88	*/
e84665c9 LB	89	int nr_chips;
e84665c9 LB	90	struct dsa_chip_data *chip;
91da11f8 LB	91	};
91da11f8 LB	92
5075314e	93	struct packet_type;
3e8a72d1	94
cf50dcc2 BH	95	struct dsa_switch_tree {
	96	/*
	97	* Configuration data for the platform device that owns
	98	* this dsa switch tree instance.
	99	*/
	100	struct dsa_platform_data *pd;
	101
	102	/*
	103	* Reference to network device to use, and which tagging
	104	* protocol to use.
	105	*/
	106	struct net_device *master_netdev;
5075314e AD	107	int (rcv)(struct sk_buff skb,
	108	struct net_device *dev,
	109	struct packet_type *pt,
	110	struct net_device *orig_dev);
ac7a04c3	111	enum dsa_tag_protocol tag_protocol;
cf50dcc2 BH	112
	113	/*
	114	* The switch and port to which the CPU is attached.
	115	*/
	116	s8 cpu_switch;
	117	s8 cpu_port;
	118
cf50dcc2 BH	119	/*
	120	* Data for the individual switch chips.
	121	*/
	122	struct dsa_switch *ds[DSA_MAX_SWITCHES];
	123	};
	124
c8f0b869 BH	125	struct dsa_switch {
	126	/*
	127	* Parent switch tree, and switch index.
	128	*/
	129	struct dsa_switch_tree *dst;
	130	int index;
	131
59299031 FF	132	/*
	133	* Tagging protocol understood by this switch
	134	*/
	135	enum dsa_tag_protocol tag_protocol;
	136
c8f0b869 BH	137	/*
	138	* Configuration data for this switch.
	139	*/
	140	struct dsa_chip_data *pd;
	141
	142	/*
	143	* The used switch driver.
	144	*/
	145	struct dsa_switch_driver *drv;
	146
	147	/*
b4d2394d	148	* Reference to host device to use.
c8f0b869	149	*/
b4d2394d	150	struct device *master_dev;
c8f0b869	151
51579c3f GR	152	#ifdef CONFIG_NET_DSA_HWMON
	153	/*
	154	* Hardware monitoring information
	155	*/
	156	char hwmon_name[IFNAMSIZ + 8];
	157	struct device *hwmon_dev;
	158	#endif
	159
c8f0b869 BH	160	/*
	161	* Slave mii_bus and devices for the individual ports.
	162	*/
	163	u32 dsa_port_mask;
	164	u32 phys_port_mask;
0d8bcdd3	165	u32 phys_mii_mask;
c8f0b869 BH	166	struct mii_bus *slave_mii_bus;
	167	struct net_device *ports[DSA_MAX_PORTS];
	168	};
	169
	170	static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
	171	{
	172	return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
	173	}
	174
60045cbf AL	175	static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
	176	{
	177	return !!((ds->dsa_port_mask) & (1 << p));
	178	}
	179
d79d2107 GR	180	static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
	181	{
	182	return ds->phys_port_mask & (1 << p) && ds->ports[p];
	183	}
	184
c8f0b869 BH	185	static inline u8 dsa_upstream_port(struct dsa_switch *ds)
	186	{
	187	struct dsa_switch_tree *dst = ds->dst;
	188
	189	/*
	190	* If this is the root switch (i.e. the switch that connects
	191	* to the CPU), return the cpu port number on this switch.
	192	* Else return the (DSA) port number that connects to the
	193	* switch that is one hop closer to the cpu.
	194	*/
	195	if (dst->cpu_switch == ds->index)
	196	return dst->cpu_port;
	197	else
	198	return ds->pd->rtable[dst->cpu_switch];
	199	}
	200
146a3206	201	struct switchdev_trans;
ea70ba98	202	struct switchdev_obj;
146a3206	203	struct switchdev_obj_port_fdb;
76e398a6	204	struct switchdev_obj_port_vlan;
146a3206	205
c8f0b869 BH	206	struct dsa_switch_driver {
	207	struct list_head list;
	208
ac7a04c3	209	enum dsa_tag_protocol tag_protocol;
c8f0b869 BH	210	int priv_size;
	211
	212	/*
	213	* Probing and setup.
	214	*/
b4d2394d	215	char (probe)(struct device *host_dev, int sw_addr);
c8f0b869 BH	216	int (setup)(struct dsa_switch ds);
c8f0b869 BH	217	int (set_addr)(struct dsa_switch ds, u8 *addr);
6819563e	218	u32 (get_phy_flags)(struct dsa_switch ds, int port);
c8f0b869 BH	219
	220	/*
	221	* Access to the switch's PHY registers.
	222	*/
	223	int (phy_read)(struct dsa_switch ds, int port, int regnum);
	224	int (phy_write)(struct dsa_switch ds, int port,
	225	int regnum, u16 val);
	226
ec9436ba FF	227	/*
	228	* Link state adjustment (called from libphy)
	229	*/
	230	void (adjust_link)(struct dsa_switch ds, int port,
	231	struct phy_device *phydev);
ce31b31c FF	232	void (fixed_link_update)(struct dsa_switch ds, int port,
ce31b31c FF	233	struct fixed_phy_status *st);
ec9436ba	234
c8f0b869 BH	235	/*
	236	* ethtool hardware statistics.
	237	*/
	238	void (get_strings)(struct dsa_switch ds, int port, uint8_t *data);
	239	void (get_ethtool_stats)(struct dsa_switch ds,
	240	int port, uint64_t *data);
	241	int (get_sset_count)(struct dsa_switch ds);
24462549	242
19e57c4e FF	243	/*
	244	* ethtool Wake-on-LAN
	245	*/
	246	void (get_wol)(struct dsa_switch ds, int port,
	247	struct ethtool_wolinfo *w);
	248	int (set_wol)(struct dsa_switch ds, int port,
	249	struct ethtool_wolinfo *w);
	250
24462549 FF	251	/*
	252	* Suspend and resume
	253	*/
	254	int (suspend)(struct dsa_switch ds);
	255	int (resume)(struct dsa_switch ds);
b2f2af21 FF	256
	257	/*
	258	* Port enable/disable
	259	*/
	260	int (port_enable)(struct dsa_switch ds, int port,
	261	struct phy_device *phy);
	262	void (port_disable)(struct dsa_switch ds, int port,
	263	struct phy_device *phy);
7905288f FF	264
	265	/*
	266	* EEE setttings
	267	*/
	268	int (set_eee)(struct dsa_switch ds, int port,
	269	struct phy_device *phydev,
	270	struct ethtool_eee *e);
	271	int (get_eee)(struct dsa_switch ds, int port,
	272	struct ethtool_eee *e);
51579c3f GR	273
	274	#ifdef CONFIG_NET_DSA_HWMON
	275	/* Hardware monitoring */
	276	int (get_temp)(struct dsa_switch ds, int *temp);
	277	int (get_temp_limit)(struct dsa_switch ds, int *temp);
	278	int (set_temp_limit)(struct dsa_switch ds, int temp);
	279	int (get_temp_alarm)(struct dsa_switch ds, bool *alarm);
	280	#endif
6793abb4 GR	281
	282	/* EEPROM access */
	283	int (get_eeprom_len)(struct dsa_switch ds);
	284	int (get_eeprom)(struct dsa_switch ds,
	285	struct ethtool_eeprom eeprom, u8 data);
	286	int (set_eeprom)(struct dsa_switch ds,
	287	struct ethtool_eeprom eeprom, u8 data);
3d762a0f GR	288
	289	/*
	290	* Register access.
	291	*/
	292	int (get_regs_len)(struct dsa_switch ds, int port);
	293	void (get_regs)(struct dsa_switch ds, int port,
	294	struct ethtool_regs regs, void p);
b73adef6 FF	295
	296	/*
	297	* Bridge integration
	298	*/
71327a4e	299	int (port_bridge_join)(struct dsa_switch ds, int port,
a6692754	300	struct net_device *bridge);
16bfa702	301	void (port_bridge_leave)(struct dsa_switch ds, int port);
b73adef6 FF	302	int (port_stp_update)(struct dsa_switch ds, int port,
b73adef6 FF	303	u8 state);
2a778e1b	304
11149536 VD	305	/*
	306	* VLAN support
	307	*/
fb2dabad VD	308	int (port_vlan_filtering)(struct dsa_switch ds, int port,
fb2dabad VD	309	bool vlan_filtering);
76e398a6 VD	310	int (port_vlan_prepare)(struct dsa_switch ds, int port,
	311	const struct switchdev_obj_port_vlan *vlan,
	312	struct switchdev_trans *trans);
	313	int (port_vlan_add)(struct dsa_switch ds, int port,
	314	const struct switchdev_obj_port_vlan *vlan,
	315	struct switchdev_trans *trans);
	316	int (port_vlan_del)(struct dsa_switch ds, int port,
	317	const struct switchdev_obj_port_vlan *vlan);
65aebfc0 VD	318	int (port_vlan_dump)(struct dsa_switch ds, int port,
	319	struct switchdev_obj_port_vlan *vlan,
	320	int (cb)(struct switchdev_obj obj));
11149536	321
2a778e1b VD	322	/*
	323	* Forwarding database
	324	*/
146a3206 VD	325	int (port_fdb_prepare)(struct dsa_switch ds, int port,
	326	const struct switchdev_obj_port_fdb *fdb,
	327	struct switchdev_trans *trans);
2a778e1b	328	int (port_fdb_add)(struct dsa_switch ds, int port,
1f36faf2 VD	329	const struct switchdev_obj_port_fdb *fdb,
1f36faf2 VD	330	struct switchdev_trans *trans);
2a778e1b	331	int (port_fdb_del)(struct dsa_switch ds, int port,
8057b3e7	332	const struct switchdev_obj_port_fdb *fdb);
ea70ba98 VD	333	int (port_fdb_dump)(struct dsa_switch ds, int port,
	334	struct switchdev_obj_port_fdb *fdb,
	335	int (cb)(struct switchdev_obj obj));
c8f0b869 BH	336	};
	337
	338	void register_switch_driver(struct dsa_switch_driver *type);
	339	void unregister_switch_driver(struct dsa_switch_driver *type);
b4d2394d	340	struct mii_bus dsa_host_dev_to_mii_bus(struct device dev);
c8f0b869	341
7fa857ed FF	342	static inline void ds_to_priv(struct dsa_switch ds)
	343	{
	344	return (void *)(ds + 1);
	345	}
	346
5aed85ce FF	347	static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
5aed85ce FF	348	{
5075314e	349	return dst->rcv != NULL;
5aed85ce	350	}
91da11f8	351	#endif