patch-2.3.15 linux/net/atm/raw.c

• Lines: 81
• Date: Mon Aug 23 09:56:32 1999
• Orig file: v2.3.14/linux/net/atm/raw.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.14/linux/net/atm/raw.c linux/net/atm/raw.c
@@ -0,0 +1,80 @@
+/* net/atm/raw.c - Raw AAL0 and AAL5 transports */
+
+/* Written 1995-1998 by Werner Almesberger, EPFL LRC */
+
+
+#include <linux/config.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;
+}