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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/net/dsa/mv88e6xxx.h
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/*

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 * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support

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 * Copyright (c) 2008 Marvell Semiconductor

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License as published by

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 * the Free Software Foundation; either version 2 of the License, or

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 * (at your option) any later version.

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 */

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#ifndef __MV88E6XXX_H

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#define __MV88E6XXX_H

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#define REG_PORT(p)		(0x10 + (p))

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#define REG_GLOBAL		0x1b

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#define REG_GLOBAL2		0x1c

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struct mv88e6xxx_priv_state {

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	/*

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	 * When using multi-chip addressing, this mutex protects

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	 * access to the indirect access registers.  (In single-chip

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	 * mode, this mutex is effectively useless.)

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	 */

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	struct mutex	smi_mutex;

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#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU

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	/*

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	 * Handles automatic disabling and re-enabling of the PHY

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	 * polling unit.

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	 */

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	struct mutex		ppu_mutex;

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	int			ppu_disabled;

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	struct work_struct	ppu_work;

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	struct timer_list	ppu_timer;

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#endif

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	/*

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	 * This mutex serialises access to the statistics unit.

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	 * Hold this mutex over snapshot + dump sequences.

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	 */

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	struct mutex	stats_mutex;

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	int		id; /* switch product id */

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};

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struct mv88e6xxx_hw_stat {

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	char string[ETH_GSTRING_LEN];

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	int sizeof_stat;

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	int reg;

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};

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int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);

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int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);

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int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,

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                          int reg, u16 val);

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int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);

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int mv88e6xxx_config_prio(struct dsa_switch *ds);

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int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);

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int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);

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int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);

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int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);

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void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);

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int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);

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int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,

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			    int regnum, u16 val);

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void mv88e6xxx_poll_link(struct dsa_switch *ds);

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void mv88e6xxx_get_strings(struct dsa_switch *ds,

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			   int nr_stats, struct mv88e6xxx_hw_stat *stats,

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			   int port, uint8_t *data);

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void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,

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				 int nr_stats, struct mv88e6xxx_hw_stat *stats,

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				 int port, uint64_t *data);

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#define REG_READ(addr, reg)						\

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	({								\

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		int __ret;						\

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									\

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		__ret = mv88e6xxx_reg_read(ds, addr, reg);		\

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		if (__ret < 0)						\

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			return __ret;					\

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		__ret;							\

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	})

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#define REG_WRITE(addr, reg, val)					\

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	({								\

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		int __ret;						\

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									\

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		__ret = mv88e6xxx_reg_write(ds, addr, reg, val);	\

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		if (__ret < 0)						\

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			return __ret;					\

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	})

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#endif

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