linux/include/net/atmclip.h
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   1/* net/atm/atmarp.h - RFC1577 ATM ARP */
   2 
   3/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
   4 
   5 
   6#ifndef _ATMCLIP_H
   7#define _ATMCLIP_H
   8
   9#include <linux/netdevice.h>
  10#include <linux/atm.h>
  11#include <linux/atmdev.h>
  12#include <linux/atmarp.h>
  13#include <linux/spinlock.h>
  14#include <net/neighbour.h>
  15
  16
  17#define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))
  18
  19struct sk_buff;
  20
  21struct clip_vcc {
  22        struct atm_vcc  *vcc;           /* VCC descriptor */
  23        struct atmarp_entry *entry;     /* ATMARP table entry, NULL if IP addr.
  24                                           isn't known yet */
  25        int             xoff;           /* 1 if send buffer is full */
  26        unsigned char   encap;          /* 0: NULL, 1: LLC/SNAP */
  27        unsigned long   last_use;       /* last send or receive operation */
  28        unsigned long   idle_timeout;   /* keep open idle for so many jiffies*/
  29        void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
  30                                        /* keep old push fn for chaining */
  31        void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
  32                                        /* keep old pop fn for chaining */
  33        struct clip_vcc *next;          /* next VCC */
  34};
  35
  36
  37struct atmarp_entry {
  38        struct clip_vcc *vccs;          /* active VCCs; NULL if resolution is
  39                                           pending */
  40        unsigned long   expires;        /* entry expiration time */
  41        struct neighbour *neigh;        /* neighbour back-pointer */
  42};
  43
  44#define PRIV(dev) ((struct clip_priv *) netdev_priv(dev))
  45
  46struct clip_priv {
  47        int number;                     /* for convenience ... */
  48        spinlock_t xoff_lock;           /* ensures that pop is atomic (SMP) */
  49        struct net_device *next;        /* next CLIP interface */
  50};
  51
  52#endif
  53
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