/* * 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