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-rw-r--r--include/net/dsa.h42
1 files changed, 33 insertions, 9 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 52e97bfca5a..839f768f9e3 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -1,6 +1,6 @@
/*
* include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
- * Copyright (c) 2008 Marvell Semiconductor
+ * 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
@@ -11,23 +11,47 @@
#ifndef __LINUX_NET_DSA_H
#define __LINUX_NET_DSA_H
-#define DSA_MAX_PORTS 12
+#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 switch chip.
+ * to the root switch chip of the tree.
*/
struct device *netdev;
/*
- * How to access the switch configuration registers, and
- * the names of the switch ports (use "cpu" to designate
- * the switch port that the cpu is connected to).
+ * Info structs describing each of the switch chips
+ * connected via this network interface.
*/
- struct device *mii_bus;
- int sw_addr;
- char *port_names[DSA_MAX_PORTS];
+ int nr_chips;
+ struct dsa_chip_data *chip;
};
extern bool dsa_uses_dsa_tags(void *dsa_ptr);