blob: d93baa0eca8ed9b3ddee47acbc944e98979ae34c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/* net/atm/raw.c - Raw AAL0 and AAL5 transports */
/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
#include <linux/config.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/atmdev.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/mm.h>
#ifdef CONFIG_MMU_HACKS
#include <linux/mmuio.h>
#include <linux/uio.h>
#endif
#include "common.h"
#include "protocols.h"
#include "tunable.h" /* tunable parameters */
#if 0
#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
#else
#define DPRINTK(format,args...)
#endif
/*
* SKB == NULL indicates that the link is being closed
*/
void atm_push_raw(struct atm_vcc *vcc,struct sk_buff *skb)
{
if (skb) {
skb_queue_tail(&vcc->recvq,skb);
wake_up(&vcc->sleep);
}
}
static void atm_pop_raw(struct atm_vcc *vcc,struct sk_buff *skb)
{
#ifdef CONFIG_MMU_HACKS
if (ATM_SKB(skb)->iovcnt)
unlock_user(ATM_SKB(skb)->iovcnt,(struct iovec *) skb->data);
#endif
DPRINTK("APopR (%d) %d -= %d\n",vcc->vci,vcc->tx_inuse,skb->truesize);
atomic_sub(skb->truesize+ATM_PDU_OVHD,&vcc->tx_inuse);
dev_kfree_skb(skb);
wake_up(&vcc->wsleep);
}
int atm_init_aal0(struct atm_vcc *vcc)
{
vcc->push = atm_push_raw;
vcc->pop = atm_pop_raw;
vcc->push_oam = NULL;
return 0;
}
int atm_init_aal34(struct atm_vcc *vcc)
{
vcc->push = atm_push_raw;
vcc->pop = atm_pop_raw;
vcc->push_oam = NULL;
return 0;
}
int atm_init_aal5(struct atm_vcc *vcc)
{
vcc->push = atm_push_raw;
vcc->pop = atm_pop_raw;
vcc->push_oam = NULL;
return 0;
}
EXPORT_SYMBOL(atm_init_aal5);
|
