1/* 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 27#include <linux/if.h> 28 29/* 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 72/* 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__ 122 123#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) 124 125/* these are the fields of an RFC 1490 header */ 126struct frhdr 127{ 128 unsigned char control; 129 130 /* for IP packets, this can be the NLPID */ 131 unsigned char pad; 132 133 unsigned char NLPID; 134 unsigned char OUI[3]; 135 __be16 PID; 136 137#define IP_NLPID pad 138} __attribute__((packed)); 139 140/* 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{ 151 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}; 186 187#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ 188 189extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); 190 191#endif /* __KERNEL__ */ 192 193#endif 194