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1 | /* |
2 | * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
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4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #ifndef __LINUX_NET_DSA_H | |
12 | #define __LINUX_NET_DSA_H | |
13 | ||
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14 | #define DSA_MAX_SWITCHES 4 |
15 | #define DSA_MAX_PORTS 12 | |
16 | ||
17 | struct dsa_chip_data { | |
18 | /* | |
19 | * How to access the switch configuration registers. | |
20 | */ | |
21 | struct device *mii_bus; | |
22 | int sw_addr; | |
23 | ||
24 | /* | |
25 | * The names of the switch's ports. Use "cpu" to | |
26 | * designate the switch port that the cpu is connected to, | |
27 | * "dsa" to indicate that this port is a DSA link to | |
28 | * another switch, NULL to indicate the port is unused, | |
29 | * or any other string to indicate this is a physical port. | |
30 | */ | |
31 | char *port_names[DSA_MAX_PORTS]; | |
32 | ||
33 | /* | |
34 | * An array (with nr_chips elements) of which element [a] | |
35 | * indicates which port on this switch should be used to | |
36 | * send packets to that are destined for switch a. Can be | |
37 | * NULL if there is only one switch chip. | |
38 | */ | |
39 | s8 *rtable; | |
40 | }; | |
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41 | |
42 | struct dsa_platform_data { | |
43 | /* | |
44 | * Reference to a Linux network interface that connects | |
e84665c9 | 45 | * to the root switch chip of the tree. |
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46 | */ |
47 | struct device *netdev; | |
48 | ||
49 | /* | |
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50 | * Info structs describing each of the switch chips |
51 | * connected via this network interface. | |
91da11f8 | 52 | */ |
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53 | int nr_chips; |
54 | struct dsa_chip_data *chip; | |
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55 | }; |
56 | ||
cf85d08f | 57 | extern bool dsa_uses_dsa_tags(void *dsa_ptr); |
396138f0 | 58 | extern bool dsa_uses_trailer_tags(void *dsa_ptr); |
cf85d08f | 59 | |
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60 | |
61 | #endif |