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384824281c
This is a brute force removal of the wierd slave interface done for DLCI -> SDLA transmit. Before it was using non-standard return values and freeing skb in caller. This changes it to using normal return values, and freeing in the callee. Luckly only one driver pair was doing this. Not tested on real hardware, in fact I wonder if this driver pair is even being used by any users. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
193 lines
4.9 KiB
C
193 lines
4.9 KiB
C
/*
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* DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are
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* created for each DLCI associated with a FRAD. The FRAD driver
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* is not truly a network device, but the lower level device
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* handler. This allows other FRAD manufacturers to use the DLCI
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* code, including its RFC1490 encapsulation alongside the current
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* implementation for the Sangoma cards.
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*
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* Version: @(#)if_ifrad.h 0.15 31 Mar 96
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*
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* Author: Mike McLagan <mike.mclagan@linux.org>
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*
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* Changes:
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* 0.15 Mike McLagan changed structure defs (packed)
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* re-arranged flags
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* added DLCI_RET vars
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _FRAD_H_
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#define _FRAD_H_
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#include <linux/if.h>
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/* Structures and constants associated with the DLCI device driver */
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struct dlci_add
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{
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char devname[IFNAMSIZ];
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short dlci;
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};
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#define DLCI_GET_CONF (SIOCDEVPRIVATE + 2)
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#define DLCI_SET_CONF (SIOCDEVPRIVATE + 3)
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/*
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* These are related to the Sangoma SDLA and should remain in order.
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* Code within the SDLA module is based on the specifics of this
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* structure. Change at your own peril.
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*/
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struct dlci_conf {
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short flags;
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short CIR_fwd;
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short Bc_fwd;
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short Be_fwd;
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short CIR_bwd;
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short Bc_bwd;
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short Be_bwd;
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/* these are part of the status read */
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short Tc_fwd;
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short Tc_bwd;
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short Tf_max;
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short Tb_max;
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/* add any new fields here above is a mirror of sdla_dlci_conf */
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};
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#define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4)
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/* configuration flags for DLCI */
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#define DLCI_IGNORE_CIR_OUT 0x0001
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#define DLCI_ACCOUNT_CIR_IN 0x0002
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#define DLCI_BUFFER_IF 0x0008
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#define DLCI_VALID_FLAGS 0x000B
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/* defines for the actual Frame Relay hardware */
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#define FRAD_GET_CONF (SIOCDEVPRIVATE)
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#define FRAD_SET_CONF (SIOCDEVPRIVATE + 1)
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#define FRAD_LAST_IOCTL FRAD_SET_CONF
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/*
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* Based on the setup for the Sangoma SDLA. If changes are
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* necessary to this structure, a routine will need to be
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* added to that module to copy fields.
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*/
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struct frad_conf
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{
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short station;
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short flags;
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short kbaud;
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short clocking;
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short mtu;
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short T391;
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short T392;
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short N391;
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short N392;
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short N393;
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short CIR_fwd;
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short Bc_fwd;
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short Be_fwd;
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short CIR_bwd;
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short Bc_bwd;
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short Be_bwd;
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/* Add new fields here, above is a mirror of the sdla_conf */
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};
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#define FRAD_STATION_CPE 0x0000
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#define FRAD_STATION_NODE 0x0001
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#define FRAD_TX_IGNORE_CIR 0x0001
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#define FRAD_RX_ACCOUNT_CIR 0x0002
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#define FRAD_DROP_ABORTED 0x0004
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#define FRAD_BUFFERIF 0x0008
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#define FRAD_STATS 0x0010
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#define FRAD_MCI 0x0100
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#define FRAD_AUTODLCI 0x8000
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#define FRAD_VALID_FLAGS 0x811F
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#define FRAD_CLOCK_INT 0x0001
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#define FRAD_CLOCK_EXT 0x0000
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#ifdef __KERNEL__
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#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE)
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/* these are the fields of an RFC 1490 header */
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struct frhdr
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{
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unsigned char control;
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/* for IP packets, this can be the NLPID */
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unsigned char pad;
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unsigned char NLPID;
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unsigned char OUI[3];
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__be16 PID;
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#define IP_NLPID pad
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} __attribute__((packed));
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/* see RFC 1490 for the definition of the following */
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#define FRAD_I_UI 0x03
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#define FRAD_P_PADDING 0x00
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#define FRAD_P_Q933 0x08
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#define FRAD_P_SNAP 0x80
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#define FRAD_P_CLNP 0x81
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#define FRAD_P_IP 0xCC
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struct dlci_local
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{
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struct net_device *master;
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struct net_device *slave;
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struct dlci_conf config;
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int configured;
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struct list_head list;
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/* callback function */
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void (*receive)(struct sk_buff *skb, struct net_device *);
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};
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struct frad_local
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{
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struct net_device_stats stats;
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/* devices which this FRAD is slaved to */
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struct net_device *master[CONFIG_DLCI_MAX];
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short dlci[CONFIG_DLCI_MAX];
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struct frad_conf config;
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int configured; /* has this device been configured */
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int initialized; /* mem_start, port, irq set ? */
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/* callback functions */
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int (*activate)(struct net_device *, struct net_device *);
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int (*deactivate)(struct net_device *, struct net_device *);
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int (*assoc)(struct net_device *, struct net_device *);
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int (*deassoc)(struct net_device *, struct net_device *);
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int (*dlci_conf)(struct net_device *, struct net_device *, int get);
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/* fields that are used by the Sangoma SDLA cards */
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struct timer_list timer;
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int type; /* adapter type */
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int state; /* state of the S502/8 control latch */
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int buffer; /* current buffer for S508 firmware */
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};
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#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
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extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
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#endif /* __KERNEL__ */
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#endif
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