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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* 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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#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))
Linus Torvalds1da177e2005-04-16 15:20:36 -070018
Arnaldo Carvalho de Melo14c85022005-12-27 02:43:12 -020019struct sk_buff;
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
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 {
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#define PRIV(dev) ((struct clip_priv *) netdev_priv(dev))
45
Linus Torvalds1da177e2005-04-16 15:20:36 -070046struct clip_priv {
47 int number; /* for convenience ... */
48 spinlock_t xoff_lock; /* ensures that pop is atomic (SMP) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 struct net_device *next; /* next CLIP interface */
50};
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052#endif