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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are
3 * created for each DLCI associated with a FRAD. The FRAD driver
4 * is not truly a network device, but the lower level device
5 * handler. This allows other FRAD manufacturers to use the DLCI
6 * code, including its RFC1490 encapsulation alongside the current
7 * implementation for the Sangoma cards.
8 *
9 * Version: @(#)if_ifrad.h 0.15 31 Mar 96
10 *
11 * Author: Mike McLagan <mike.mclagan@linux.org>
12 *
13 * Changes:
14 * 0.15 Mike McLagan changed structure defs (packed)
15 * re-arranged flags
16 * added DLCI_RET vars
17 *
18 * This program is free software; you can redistribute it and/or
19 * modify it under the terms of the GNU General Public License
20 * as published by the Free Software Foundation; either version
21 * 2 of the License, or (at your option) any later version.
22 */
23
24#ifndef _FRAD_H_
25#define _FRAD_H_
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/if.h>
28
Linus Torvalds1da177e2005-04-16 15:20:36 -070029/* Structures and constants associated with the DLCI device driver */
30
31struct dlci_add
32{
33 char devname[IFNAMSIZ];
34 short dlci;
35};
36
37#define DLCI_GET_CONF (SIOCDEVPRIVATE + 2)
38#define DLCI_SET_CONF (SIOCDEVPRIVATE + 3)
39
40/*
41 * These are related to the Sangoma SDLA and should remain in order.
42 * Code within the SDLA module is based on the specifics of this
43 * structure. Change at your own peril.
44 */
45struct dlci_conf {
46 short flags;
47 short CIR_fwd;
48 short Bc_fwd;
49 short Be_fwd;
50 short CIR_bwd;
51 short Bc_bwd;
52 short Be_bwd;
53
54/* these are part of the status read */
55 short Tc_fwd;
56 short Tc_bwd;
57 short Tf_max;
58 short Tb_max;
59
60/* add any new fields here above is a mirror of sdla_dlci_conf */
61};
62
63#define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4)
64
65/* configuration flags for DLCI */
66#define DLCI_IGNORE_CIR_OUT 0x0001
67#define DLCI_ACCOUNT_CIR_IN 0x0002
68#define DLCI_BUFFER_IF 0x0008
69
70#define DLCI_VALID_FLAGS 0x000B
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072/* defines for the actual Frame Relay hardware */
73#define FRAD_GET_CONF (SIOCDEVPRIVATE)
74#define FRAD_SET_CONF (SIOCDEVPRIVATE + 1)
75
76#define FRAD_LAST_IOCTL FRAD_SET_CONF
77
78/*
79 * Based on the setup for the Sangoma SDLA. If changes are
80 * necessary to this structure, a routine will need to be
81 * added to that module to copy fields.
82 */
83struct frad_conf
84{
85 short station;
86 short flags;
87 short kbaud;
88 short clocking;
89 short mtu;
90 short T391;
91 short T392;
92 short N391;
93 short N392;
94 short N393;
95 short CIR_fwd;
96 short Bc_fwd;
97 short Be_fwd;
98 short CIR_bwd;
99 short Bc_bwd;
100 short Be_bwd;
101
102/* Add new fields here, above is a mirror of the sdla_conf */
103
104};
105
106#define FRAD_STATION_CPE 0x0000
107#define FRAD_STATION_NODE 0x0001
108
109#define FRAD_TX_IGNORE_CIR 0x0001
110#define FRAD_RX_ACCOUNT_CIR 0x0002
111#define FRAD_DROP_ABORTED 0x0004
112#define FRAD_BUFFERIF 0x0008
113#define FRAD_STATS 0x0010
114#define FRAD_MCI 0x0100
115#define FRAD_AUTODLCI 0x8000
116#define FRAD_VALID_FLAGS 0x811F
117
118#define FRAD_CLOCK_INT 0x0001
119#define FRAD_CLOCK_EXT 0x0000
120
121#ifdef __KERNEL__
122
Krzysztof Hałasa3121a482009-01-26 12:30:12 -0800123#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE)
124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125/* these are the fields of an RFC 1490 header */
126struct frhdr
127{
Jan Blunck6a878182006-01-08 01:05:07 -0800128 unsigned char control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129
130 /* for IP packets, this can be the NLPID */
Jan Blunck6a878182006-01-08 01:05:07 -0800131 unsigned char pad;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
Jan Blunck6a878182006-01-08 01:05:07 -0800133 unsigned char NLPID;
134 unsigned char OUI[3];
Al Viro904584012007-12-22 17:52:52 +0000135 __be16 PID;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137#define IP_NLPID pad
Jan Blunck6a878182006-01-08 01:05:07 -0800138} __attribute__((packed));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
140/* see RFC 1490 for the definition of the following */
141#define FRAD_I_UI 0x03
142
143#define FRAD_P_PADDING 0x00
144#define FRAD_P_Q933 0x08
145#define FRAD_P_SNAP 0x80
146#define FRAD_P_CLNP 0x81
147#define FRAD_P_IP 0xCC
148
149struct dlci_local
150{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 struct net_device *master;
152 struct net_device *slave;
153 struct dlci_conf config;
154 int configured;
155 struct list_head list;
156
157 /* callback function */
158 void (*receive)(struct sk_buff *skb, struct net_device *);
159};
160
161struct frad_local
162{
163 struct net_device_stats stats;
164
165 /* devices which this FRAD is slaved to */
166 struct net_device *master[CONFIG_DLCI_MAX];
167 short dlci[CONFIG_DLCI_MAX];
168
169 struct frad_conf config;
170 int configured; /* has this device been configured */
171 int initialized; /* mem_start, port, irq set ? */
172
173 /* callback functions */
174 int (*activate)(struct net_device *, struct net_device *);
175 int (*deactivate)(struct net_device *, struct net_device *);
176 int (*assoc)(struct net_device *, struct net_device *);
177 int (*deassoc)(struct net_device *, struct net_device *);
178 int (*dlci_conf)(struct net_device *, struct net_device *, int get);
179
180 /* fields that are used by the Sangoma SDLA cards */
181 struct timer_list timer;
182 int type; /* adapter type */
183 int state; /* state of the S502/8 control latch */
184 int buffer; /* current buffer for S508 firmware */
185};
186
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
188
Arnaldo Carvalho de Melo20380732005-08-16 02:18:02 -0300189extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
Krzysztof Hałasa3121a482009-01-26 12:30:12 -0800190
191#endif /* __KERNEL__ */
Arnaldo Carvalho de Melo20380732005-08-16 02:18:02 -0300192
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193#endif