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/* * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are * created for each DLCI associated with a FRAD. The FRAD driver * is not truly a network device, but the lower level device * handler. This allows other FRAD manufacturers to use the DLCI * code, including its RFC1490 encapsulation alongside the current * implementation for the Sangoma cards. * * Version: @(#)if_ifrad.h 0.15 31 Mar 96 * * Author: Mike McLagan <mike.mclagan@linux.org> * * Changes: * 0.15 Mike McLagan changed structure defs (packed) * re-arranged flags * added DLCI_RET vars * * 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 _FRAD_H_ #define _FRAD_H_ #include <linux/config.h> #include <linux/if.h> #if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) /* Structures and constants associated with the DLCI device driver */ struct dlci_add { char devname[IFNAMSIZ]; short dlci; }; #define DLCI_GET_CONF (SIOCDEVPRIVATE + 2) #define DLCI_SET_CONF (SIOCDEVPRIVATE + 3) /* * These are related to the Sangoma SDLA and should remain in order. * Code within the SDLA module is based on the specifics of this * structure. Change at your own peril. */ struct dlci_conf { short flags; short CIR_fwd; short Bc_fwd; short Be_fwd; short CIR_bwd; short Bc_bwd; short Be_bwd; /* these are part of the status read */ short Tc_fwd; short Tc_bwd; short Tf_max; short Tb_max; /* add any new fields here above is a mirror of sdla_dlci_conf */ }; #define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4) /* configuration flags for DLCI */ #define DLCI_IGNORE_CIR_OUT 0x0001 #define DLCI_ACCOUNT_CIR_IN 0x0002 #define DLCI_BUFFER_IF 0x0008 #define DLCI_VALID_FLAGS 0x000B /* FRAD driver uses these to indicate what it did with packet */ #define DLCI_RET_OK 0x00 #define DLCI_RET_ERR 0x01 #define DLCI_RET_DROP 0x02 /* defines for the actual Frame Relay hardware */ #define FRAD_GET_CONF (SIOCDEVPRIVATE) #define FRAD_SET_CONF (SIOCDEVPRIVATE + 1) #define FRAD_LAST_IOCTL FRAD_SET_CONF /* * Based on the setup for the Sangoma SDLA. If changes are * necessary to this structure, a routine will need to be * added to that module to copy fields. */ struct frad_conf { short station; short flags; short kbaud; short clocking; short mtu; short T391; short T392; short N391; short N392; short N393; short CIR_fwd; short Bc_fwd; short Be_fwd; short CIR_bwd; short Bc_bwd; short Be_bwd; /* Add new fields here, above is a mirror of the sdla_conf */ }; #define FRAD_STATION_CPE 0x0000 #define FRAD_STATION_NODE 0x0001 #define FRAD_TX_IGNORE_CIR 0x0001 #define FRAD_RX_ACCOUNT_CIR 0x0002 #define FRAD_DROP_ABORTED 0x0004 #define FRAD_BUFFERIF 0x0008 #define FRAD_STATS 0x0010 #define FRAD_MCI 0x0100 #define FRAD_AUTODLCI 0x8000 #define FRAD_VALID_FLAGS 0x811F #define FRAD_CLOCK_INT 0x0001 #define FRAD_CLOCK_EXT 0x0000 #ifdef __KERNEL__ /* these are the fields of an RFC 1490 header */ struct frhdr { unsigned char control; /* for IP packets, this can be the NLPID */ unsigned char pad; unsigned char NLPID; unsigned char OUI[3]; unsigned short PID; #define IP_NLPID pad } __attribute__((packed)); /* see RFC 1490 for the definition of the following */ #define FRAD_I_UI 0x03 #define FRAD_P_PADDING 0x00 #define FRAD_P_Q933 0x08 #define FRAD_P_SNAP 0x80 #define FRAD_P_CLNP 0x81 #define FRAD_P_IP 0xCC struct dlci_local { struct net_device_stats stats; struct net_device *master; struct net_device *slave; struct dlci_conf config; int configured; struct list_head list; /* callback function */ void (*receive)(struct sk_buff *skb, struct net_device *); }; struct frad_local { struct net_device_stats stats; /* devices which this FRAD is slaved to */ struct net_device *master[CONFIG_DLCI_MAX]; short dlci[CONFIG_DLCI_MAX]; struct frad_conf config; int configured; /* has this device been configured */ int initialized; /* mem_start, port, irq set ? */ /* callback functions */ int (*activate)(struct net_device *, struct net_device *); int (*deactivate)(struct net_device *, struct net_device *); int (*assoc)(struct net_device *, struct net_device *); int (*deassoc)(struct net_device *, struct net_device *); int (*dlci_conf)(struct net_device *, struct net_device *, int get); /* fields that are used by the Sangoma SDLA cards */ struct timer_list timer; int type; /* adapter type */ int state; /* state of the S502/8 control latch */ int buffer; /* current buffer for S508 firmware */ }; #endif /* __KERNEL__ */ #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ #ifdef __KERNEL__ extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); #endif #endif