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author | Kim Kibum <kb0929.kim@samsung.com> | 2012-04-29 16:59:19 +0900 |
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committer | Kim Kibum <kb0929.kim@samsung.com> | 2012-04-29 16:59:19 +0900 |
commit | c1775d1a93a77a57380a4ce87ac3a8f807c944b2 (patch) | |
tree | e1f233f2af38ee247a677082198dd3a69a12a5a1 /include/net/dsa.h | |
parent | 2c2dcd5ffef2e97176e6a55e45512177e55e6fb9 (diff) | |
download | linux-2.6.36-c1775d1a93a77a57380a4ce87ac3a8f807c944b2.tar.gz linux-2.6.36-c1775d1a93a77a57380a4ce87ac3a8f807c944b2.tar.bz2 linux-2.6.36-c1775d1a93a77a57380a4ce87ac3a8f807c944b2.zip |
Diffstat (limited to 'include/net/dsa.h')
-rw-r--r-- | include/net/dsa.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h new file mode 100644 index 00000000..839f768f --- /dev/null +++ b/include/net/dsa.h @@ -0,0 +1,61 @@ +/* + * 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 |