diff options
Diffstat (limited to 'include/linux/if_frad.h')
| -rw-r--r-- | include/linux/if_frad.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h new file mode 100644 index 00000000000..3c94b173657 --- /dev/null +++ b/include/linux/if_frad.h @@ -0,0 +1,200 @@ +/* + * 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 __attribute__((packed)); + + /* for IP packets, this can be the NLPID */ + unsigned char pad __attribute__((packed)); + + unsigned char NLPID __attribute__((packed)); + unsigned char OUI[3] __attribute__((packed)); + unsigned short PID __attribute__((packed)); + +#define IP_NLPID pad +}; + +/* 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 */ +}; + +extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); + +#endif /* __KERNEL__ */ + +#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ + +#endif |