diff -ur --new-file old/linux/drivers/atm/atmtcp.c new/linux/drivers/atm/atmtcp.c
--- old/linux/drivers/atm/atmtcp.c	Tue Aug  4 22:51:46 1998
+++ new/linux/drivers/atm/atmtcp.c	Tue Aug  4 22:52:13 1998
@@ -6,9 +6,17 @@
 #include <linux/atmdev.h>
 #include <linux/atm_tcp.h>
 #include <asm/uaccess.h>
-#include "../../net/atm/tunable.h" /* fix this */
-#include "../../net/atm/protocols.h" /* fix this */
-#include "../../net/atm/resources.h" /* fix this */
+#include "../../net/atm/tunable.h" /* @@@ fix this */
+#include "../../net/atm/protocols.h" /* @@@ fix this */
+
+
+#define PRIV(dev) ((struct atmtcp_dev_data *) ((dev)->dev_data))
+
+
+struct atmtcp_dev_data {
+	struct atm_vcc *vcc;	/* control VCC; NULL if detached */
+	int persist;		/* non-zero if persistent */
+};
 
 
 #define DEV_LABEL    "atmtcp"
@@ -64,15 +72,18 @@
 
 static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
 {
+	struct atmtcp_dev_data *dev_data;
 	struct atm_vcc *out_vcc;
 	struct sk_buff *new_skb;
 	struct atmtcp_hdr *hdr;
 	int size;
 
-	out_vcc = vcc->dev->dev_data;
-	if (!out_vcc) {
+	dev_data = PRIV(vcc->dev);
+	if (dev_data) out_vcc = dev_data->vcc;
+	if (!dev_data || !out_vcc) {
 		if (vcc->pop) vcc->pop(vcc,skb);
 		else dev_kfree_skb(skb);
+		if (dev_data) return 0;
 		vcc->stats->tx_err++;
 		return -ENOLINK;
 	}
@@ -101,10 +112,28 @@
 }
 
 
+static int atmtcp_v_proc(struct atm_dev *dev,loff_t *pos,char *page)
+{
+	struct atmtcp_dev_data *dev_data = PRIV(dev);
+
+	if (*pos) return 0;
+	if (!dev_data->persist) return sprintf(page,"ephemeral\n");
+	return sprintf(page,"persistent, %sconnected\n",
+	    dev_data->vcc ? "" : "dis");
+}
+
+
 static void atmtcp_c_close(struct atm_vcc *vcc)
 {
-	((struct atm_dev *) vcc->dev_data)->dev_data = NULL;
-	shutdown_atm_dev(vcc->dev_data);
+	struct atm_dev *atmtcp_dev;
+	struct atmtcp_dev_data *dev_data;
+
+	atmtcp_dev = (struct atm_dev *) vcc->dev_data;
+	dev_data = PRIV(atmtcp_dev);
+	dev_data->vcc = NULL;
+	if (dev_data->persist) return;
+	kfree(dev_data);
+	shutdown_atm_dev(atmtcp_dev);
 	vcc->dev_data = NULL;
 }
 
@@ -168,7 +197,8 @@
 	NULL,		/* no phy_get */
 	NULL,		/* no feedback */
 	NULL,		/* no change_qos */
-	NULL		/* no free_rx_skb */
+	NULL,		/* no free_rx_skb */
+	atmtcp_v_proc	/* proc_read */
 };
 
 
@@ -191,11 +221,12 @@
 	NULL,		/* no phy_get */
 	NULL,		/* no feedback */
 	NULL,		/* no change_qos */
-	NULL		/* no free_rx_skb */
+	NULL,		/* no free_rx_skb */
+	NULL		/* no proc_read */
 };
 
 
-static struct atm_dev atmtcp_dev = {
+static struct atm_dev atmtcp_control_dev = {
 	&atmtcp_c_dev_ops,
 	NULL,		/* no PHY */
 	"atmtcp",	/* type */
@@ -208,19 +239,73 @@
 };
 
 
-int atmtcp_attach(struct atm_vcc *vcc,int itf)
+static int atmtcp_create(int itf,int persist,struct atm_dev **result)
 {
+	struct atmtcp_dev_data *dev_data;
 	struct atm_dev *dev;
 
+	dev_data = kmalloc(sizeof(*dev_data),GFP_KERNEL);
+	if (!dev_data) return -ENOMEM;
 	dev = atm_dev_register(DEV_LABEL,&atmtcp_v_dev_ops,itf,0);
-	if (!dev) return itf == -1 ? -ENOMEM : -EBUSY;
+	if (!dev) {
+		kfree(dev_data);
+		return itf == -1 ? -ENOMEM : -EBUSY;
+	}
 	dev->ci_range.vpi_bits = MAX_VPI_BITS;
 	dev->ci_range.vci_bits = MAX_VCI_BITS;
-	dev->dev_data = vcc;
-	bind_vcc(vcc,&atmtcp_dev);
+	PRIV(dev) = dev_data;
+	PRIV(dev)->vcc = NULL;
+	PRIV(dev)->persist = persist;
+	if (result) *result = dev;
+	return 0;
+}
+
+
+int atmtcp_attach(struct atm_vcc *vcc,int itf)
+{
+	struct atm_dev *dev;
+
+	dev = NULL;
+	if (itf != -1) dev = atm_find_dev(itf);
+	if (dev) {
+		if (dev->ops != &atmtcp_v_dev_ops) return -EMEDIUMTYPE;
+		if (PRIV(dev)->vcc) return -EBUSY;
+	}
+	else {
+		int error;
+
+		error = atmtcp_create(itf,0,&dev);
+		if (error) return error;
+	}
+	PRIV(dev)->vcc = vcc;
+	bind_vcc(vcc,&atmtcp_control_dev);
 	vcc->flags |= ATM_VF_READY | ATM_VF_META;
 	vcc->dev_data = dev;
 	(void) atm_init_aal5(vcc); /* @@@ losing AAL in transit ... */
-	vcc->stats = &atmtcp_dev.stats.aal5;
+	vcc->stats = &atmtcp_control_dev.stats.aal5;
 	return dev->number;
+}
+
+
+int atmtcp_create_persistent(int itf)
+{
+	return atmtcp_create(itf,1,NULL);
+}
+
+
+int atmtcp_remove_persistent(int itf)
+{
+	struct atm_dev *dev;
+	struct atmtcp_dev_data *dev_data;
+
+	dev = atm_find_dev(itf);
+	if (!dev) return -ENODEV;
+	if (dev->ops != &atmtcp_v_dev_ops) return -EMEDIUMTYPE;
+	dev_data = PRIV(dev);
+	if (!dev_data->persist) return 0;
+	dev_data->persist = 0;
+	if (PRIV(dev)->vcc) return 0;
+	kfree(dev_data);
+	shutdown_atm_dev(dev);
+	return 0;
 }
diff -ur --new-file old/linux/drivers/atm/eni.c new/linux/drivers/atm/eni.c
--- old/linux/drivers/atm/eni.c	Tue Aug  4 22:51:46 1998
+++ new/linux/drivers/atm/eni.c	Tue Aug  4 22:52:13 1998
@@ -1941,17 +1941,20 @@
 
 	DPRINTK(">eni_send\n");
 	if (!ENI_VCC(vcc)->tx) {
-		dev_kfree_skb(skb);
+		if (vcc->pop) vcc->pop(vcc,skb);
+		else dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	if (!skb) {
 		printk(KERN_CRIT "!skb in eni_send ?\n");
-		dev_kfree_skb(skb);
+		if (vcc->pop) vcc->pop(vcc,skb);
+		else dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	if (vcc->qos.aal == ATM_AAL0) {
 		if (skb->len != ATM_CELL_SIZE-1) {
-			dev_kfree_skb(skb);
+			if (vcc->pop) vcc->pop(vcc,skb);
+			else dev_kfree_skb(skb);
 			return -EINVAL;
 		}
 		*(u32 *) skb->data = htonl(*(u32 *) skb->data);
diff -ur --new-file old/linux/drivers/atm/suni.c new/linux/drivers/atm/suni.c
--- old/linux/drivers/atm/suni.c	Tue Aug  4 22:51:46 1998
+++ new/linux/drivers/atm/suni.c	Tue Aug  4 22:52:13 1998
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/init.h>
+#include <linux/atm_suni.h>
 #include <asm/system.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
@@ -239,6 +240,14 @@
 	suni_hz(0); /* clear SUNI counters */
 	(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
 	cli();
+{
+int i;
+printk("SUNI:\n");
+for (i = 0; i < 256; i++) {
+    printk(" %02x",dev->ops->phy_get(dev,i));
+    if ((i & 15) == 15) printk("\n");
+}
+}
 	if (!start_timer) restore_flags(flags);
 	else {
 		start_timer = 0;
diff -ur --new-file old/linux/drivers/atm/suni.h new/linux/drivers/atm/suni.h
--- old/linux/drivers/atm/suni.h	Tue Aug  4 22:51:46 1998
+++ new/linux/drivers/atm/suni.h	Tue Aug  4 22:52:13 1998
@@ -1,6 +1,6 @@
 /* drivers/atm/suni.h - PMC SUNI (PHY) declarations */
  
-/* Written 1995 by Werner Almesberger, EPFL LRC */
+/* Written 1995,1998 by Werner Almesberger, EPFL LRC/ICA */
  
 
 #ifndef DRIVER_ATM_SUNI_H
@@ -201,15 +201,6 @@
 
 
 #define SUNI_IDLE_PATTERN       0x6a    /* idle pattern */
-
-/* ioctls */
-
-#define SUNI_GETLOOP	_IOR('a',ATMIOC_PHYPRV,int)	/* get loopback mode */
-#define SUNI_SETLOOP	_IO('a',ATMIOC_PHYPRV+1)	/* set loopback mode */
-
-#define SUNI_LM_NONE	0	/* no loopback */
-#define SUNI_LM_DIAG	1	/* diagnostic (i.e. loop TX to RX) */
-#define SUNI_LM_LOOP	2	/* line (i.e. loop RX to TX) */
 
 
 #ifdef __KERNEL__
diff -ur --new-file old/linux/drivers/atm/zatm.c new/linux/drivers/atm/zatm.c
--- old/linux/drivers/atm/zatm.c	Tue Aug  4 22:51:46 1998
+++ new/linux/drivers/atm/zatm.c	Tue Aug  4 22:52:13 1998
@@ -851,7 +851,8 @@
 		dsc = (u32 *) kmalloc(uPD98401_TXPD_SIZE*2+
 		    uPD98401_TXBD_SIZE*skb->atm.iovcnt,GFP_ATOMIC);
 		if (!dsc) {
-			dev_kfree_skb(skb);
+			if (vcc->pop) vcc->pop(vcc,skb);
+			else dev_kfree_skb(skb);
 			return -EAGAIN;
 		}
 		/* @@@ should check alignment */
@@ -1743,12 +1744,14 @@
 
 	EVENT(">zatm_send 0x%lx\n",(unsigned long) skb,0);
 	if (!ZATM_VCC(vcc)->tx_chan || !(vcc->flags & ATM_VF_READY)) {
-		dev_kfree_skb(skb);
+		if (vcc->pop) vcc->pop(vcc,skb);
+		else dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	if (!skb) {
 		printk(KERN_CRIT "!skb in zatm_send ?\n");
-		dev_kfree_skb(skb);
+		if (vcc->pop) vcc->pop(vcc,skb);
+		else dev_kfree_skb(skb);
 		return -EINVAL;
 	}
 	skb->atm.vcc = vcc;
diff -ur --new-file old/linux/include/linux/atm.h new/linux/include/linux/atm.h
--- old/linux/include/linux/atm.h	Tue Aug  4 22:51:46 1998
+++ new/linux/include/linux/atm.h	Tue Aug  4 22:52:13 1998
@@ -217,7 +217,6 @@
 };
 
 
-#define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
 #define ATM_CREATE_LEAF _IO('a',ATMIOC_SPECIAL+2)
                                 /* create a point-to-multipoint leaf socket */
 
diff -ur --new-file old/linux/include/linux/atm_suni.h new/linux/include/linux/atm_suni.h
--- old/linux/include/linux/atm_suni.h	Thu Jan  1 01:00:00 1970
+++ new/linux/include/linux/atm_suni.h	Tue Aug  4 22:52:13 1998
@@ -0,0 +1,19 @@
+/* atm_suni.h - Driver-specific declarations of the SUNI driver (for use by
+		driver-specific utilities) */
+
+/* Written 1998 by Werner Almesberger, EPFL ICA */
+
+
+#ifndef LINUX_ATM_SUNI_H
+#define LINUX_ATM_SUNI_H
+
+#include <linux/atmioc.h>
+
+#define SUNI_GETLOOP	_IOR('a',ATMIOC_PHYPRV,int)	/* get loopback mode */
+#define SUNI_SETLOOP	_IO('a',ATMIOC_PHYPRV+1)	/* set loopback mode */
+
+#define SUNI_LM_NONE	0	/* no loopback */
+#define SUNI_LM_DIAG	1	/* diagnostic (i.e. loop TX to RX) */
+#define SUNI_LM_LOOP	2	/* line (i.e. loop RX to TX) */
+
+#endif
diff -ur --new-file old/linux/include/linux/atm_tcp.h new/linux/include/linux/atm_tcp.h
--- old/linux/include/linux/atm_tcp.h	Tue Aug  4 22:51:46 1998
+++ new/linux/include/linux/atm_tcp.h	Tue Aug  4 22:52:13 1998
@@ -7,7 +7,10 @@
 #ifndef LINUX_ATM_TCP_H
 #define LINUX_ATM_TCP_H
 
+#ifdef __KERNEL__
 #include <linux/types.h>
+#endif
+#include <linux/atmioc.h>
 
 
 /*
@@ -21,9 +24,18 @@
 };
 
 
+#define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
+#define ATMTCP_CREATE	_IO('a',ATMIOC_ITF+14)	/* create persistent ATMTCP
+						   interface */
+#define ATMTCP_REMOVE	_IO('a',ATMIOC_ITF+15)	/* destroy persistent ATMTCP
+						   interface*/
+
+
 #ifdef __KERNEL__
 
 int atmtcp_attach(struct atm_vcc *vcc,int itf);
+int atmtcp_create_persistent(int itf);
+int atmtcp_remove_persistent(int itf);
 
 #endif
 
diff -ur --new-file old/linux/include/linux/atmclip.h new/linux/include/linux/atmclip.h
--- old/linux/include/linux/atmclip.h	Tue Aug  4 22:51:46 1998
+++ new/linux/include/linux/atmclip.h	Tue Aug  4 22:52:13 1998
@@ -1,6 +1,6 @@
 /* atmclip.h - Classical IP over ATM */
  
-/* Written 1995-1997 by Werner Almesberger, EPFL LRC */
+/* Written 1995-1998 by Werner Almesberger, EPFL LRC/ICA */
  
 
 #ifndef LINUX_ATMCLIP_H
@@ -17,5 +17,10 @@
 #define CLIP_CHECK_INTERVAL	 10	/* check every ten seconds */
 
 #define	SIOCMKCLIP	_IO('a',ATMIOC_CLIP)	/* create IP interface */
+
+
+#ifdef __KERNEL__
+void clip_xmit_vcc(struct sk_buff *skb,struct atm_vcc *vcc);
+#endif
 
 #endif
diff -ur --new-file old/linux/include/linux/atmdev.h new/linux/include/linux/atmdev.h
--- old/linux/include/linux/atmdev.h	Tue Aug  4 22:51:46 1998
+++ new/linux/include/linux/atmdev.h	Tue Aug  4 22:52:13 1998
@@ -283,7 +283,10 @@
 
 struct atm_dev *atm_dev_register(const char *type,const struct atmdev_ops *ops,
     int number,unsigned long flags); /* number == -1: pick first available */
+struct atm_dev *atm_find_dev(int number);
 void atm_dev_deregister(struct atm_dev *dev);
+void shutdown_atm_dev(struct atm_dev *dev);
+void bind_vcc(struc