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/*
* 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
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
struct dsa_chip_data {
/*
* How to access the switch configuration registers.
*/
struct device *mii_bus;
int sw_addr;
/*
* 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];
/*
* 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;
};
struct dsa_platform_data {
/*
* Reference to a Linux network interface that connects
* to the root switch chip of the tree.
*/
struct device *netdev;
/*
* Info structs describing each of the switch chips
* connected via this network interface.
*/
int nr_chips;
struct dsa_chip_data *chip;
};
extern bool dsa_uses_dsa_tags(void *dsa_ptr);
extern bool dsa_uses_trailer_tags(void *dsa_ptr);
#endif
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