Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1323 insertions, 0 deletions

diff --git a/drivers/net/3c523.c b/drivers/net/3c523.c
new file mode 100644
index 000000000000..8f6b2fa13e28
--- /dev/null
+++ b/drivers/net/3c523.c
@@ -0,0 +1,1323 @@
+/*
+   net-3-driver for the 3c523 Etherlink/MC card (i82586 Ethernet chip)
+
+
+   This is an extension to the Linux operating system, and is covered by the
+   same GNU General Public License that covers that work.
+
+   Copyright 1995, 1996 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca)
+
+   This is basically Michael Hipp's ni52 driver, with a new probing
+   algorithm and some minor changes to the 82586 CA and reset routines.
+   Thanks a lot Michael for a really clean i82586 implementation!  Unless
+   otherwise documented in ni52.c, any bugs are mine.
+
+   Contrary to the Ethernet-HOWTO, this isn't based on the 3c507 driver in
+   any way.  The ni52 is a lot easier to modify.
+
+   sources:
+   ni52.c
+
+   Crynwr packet driver collection was a great reference for my first
+   attempt at this sucker.  The 3c507 driver also helped, until I noticed
+   that ni52.c was a lot nicer.
+
+   EtherLink/MC: Micro Channel Ethernet Adapter Technical Reference
+   Manual, courtesy of 3Com CardFacts, documents the 3c523-specific
+   stuff.  Information on CardFacts is found in the Ethernet HOWTO.
+   Also see <a href="http://www.3com.com/">
+
+   Microprocessor Communications Support Chips, T.J. Byers, ISBN
+   0-444-01224-9, has a section on the i82586.  It tells you just enough
+   to know that you really don't want to learn how to program the chip.
+
+   The original device probe code was stolen from ps2esdi.c
+
+   Known Problems:
+   Since most of the code was stolen from ni52.c, you'll run across the
+   same bugs in the 0.62 version of ni52.c, plus maybe a few because of
+   the 3c523 idiosynchacies.  The 3c523 has 16K of RAM though, so there
+   shouldn't be the overrun problem that the 8K ni52 has.
+
+   This driver is for a 16K adapter.  It should work fine on the 64K
+   adapters, but it will only use one of the 4 banks of RAM.  Modifying
+   this for the 64K version would require a lot of heinous bank
+   switching, which I'm sure not interested in doing.  If you try to
+   implement a bank switching version, you'll basically have to remember
+   what bank is enabled and do a switch everytime you access a memory
+   location that's not current.  You'll also have to remap pointers on
+   the driver side, because it only knows about 16K of the memory.
+   Anyone desperate or masochistic enough to try?
+
+   It seems to be stable now when multiple transmit buffers are used.  I
+   can't see any performance difference, but then I'm working on a 386SX.
+
+   Multicast doesn't work.  It doesn't even pretend to work.  Don't use
+   it.  Don't compile your kernel with multicast support.  I don't know
+   why.
+
+   Features:
+   This driver is useable as a loadable module.  If you try to specify an
+   IRQ or a IO address (via insmod 3c523.o irq=xx io=0xyyy), it will
+   search the MCA slots until it finds a 3c523 with the specified
+   parameters.
+
+   This driver does support multiple ethernet cards when used as a module
+   (up to MAX_3C523_CARDS, the default being 4)
+
+   This has been tested with both BNC and TP versions, internal and
+   external transceivers.  Haven't tested with the 64K version (that I
+   know of).
+
+   History:
+   Jan 1st, 1996
+   first public release
+   Feb 4th, 1996
+   update to 1.3.59, incorporated multicast diffs from ni52.c
+   Feb 15th, 1996
+   added shared irq support
+   Apr 1999
+   added support for multiple cards when used as a module
+   added option to disable multicast as is causes problems
+       Ganesh Sittampalam <ganesh.sittampalam@magdalen.oxford.ac.uk>
+       Stuart Adamson <stuart.adamson@compsoc.net>
+   Nov 2001
+   added support for ethtool (jgarzik)
+	
+   $Header: /fsys2/home/chrisb/linux-1.3.59-MCA/drivers/net/RCS/3c523.c,v 1.1 1996/02/05 01:53:46 chrisb Exp chrisb $
+ */
+
+#define DRV_NAME		"3c523"
+#define DRV_VERSION		"17-Nov-2001"
+
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/mca-legacy.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+
+#include <asm/uaccess.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+#include "3c523.h"
+
+/*************************************************************************/
+#define DEBUG			/* debug on */
+#define SYSBUSVAL 0		/* 1 = 8 Bit, 0 = 16 bit - 3c523 only does 16 bit */
+#undef ELMC_MULTICAST		/* Disable multicast support as it is somewhat seriously broken at the moment */
+
+#define make32(ptr16) (p->memtop + (short) (ptr16) )
+#define make24(ptr32) ((char *) (ptr32) - p->base)
+#define make16(ptr32) ((unsigned short) ((unsigned long) (ptr32) - (unsigned long) p->memtop ))
+
+/*************************************************************************/
+/*
+   Tables to which we can map values in the configuration registers.
+ */
+static int irq_table[] __initdata = {
+	12, 7, 3, 9
+};
+
+static int csr_table[] __initdata = {
+	0x300, 0x1300, 0x2300, 0x3300
+};
+
+static int shm_table[] __initdata = {
+	0x0c0000, 0x0c8000, 0x0d0000, 0x0d8000
+};
+
+/******************* how to calculate the buffers *****************************
+
+
+  * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
+  * --------------- in a different (more stable?) mode. Only in this mode it's
+  *                 possible to configure the driver with 'NO_NOPCOMMANDS'
+
+sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
+sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
+sizeof(rfd) = 24; sizeof(rbd) = 12;
+sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
+sizeof(nop_cmd) = 8;
+
+  * if you don't know the driver, better do not change this values: */
+
+#define RECV_BUFF_SIZE 1524	/* slightly oversized */
+#define XMIT_BUFF_SIZE 1524	/* slightly oversized */
+#define NUM_XMIT_BUFFS 1	/* config for both, 8K and 16K shmem */
+#define NUM_RECV_BUFFS_8  4	/* config for 8K shared mem */
+#define NUM_RECV_BUFFS_16 9	/* config for 16K shared mem */
+
+#if (NUM_XMIT_BUFFS == 1)
+#define NO_NOPCOMMANDS		/* only possible with NUM_XMIT_BUFFS=1 */
+#endif
+
+/**************************************************************************/
+
+#define DELAY(x) { mdelay(32 * x); }
+
+/* a much shorter delay: */
+#define DELAY_16(); { udelay(16) ; }
+
+/* wait for command with timeout: */
+#define WAIT_4_SCB_CMD() { int i; \
+  for(i=0;i<1024;i++) { \
+    if(!p->scb->cmd) break; \
+    DELAY_16(); \
+    if(i == 1023) { \
+      printk(KERN_WARNING "%s:%d: scb_cmd timed out .. resetting i82586\n",\
+      	dev->name,__LINE__); \
+      elmc_id_reset586(); } } }
+
+static irqreturn_t elmc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr);
+static int elmc_open(struct net_device *dev);
+static int elmc_close(struct net_device *dev);
+static int elmc_send_packet(struct sk_buff *, struct net_device *);
+static struct net_device_stats *elmc_get_stats(struct net_device *dev);
+static void elmc_timeout(struct net_device *dev);
+#ifdef ELMC_MULTICAST
+static void set_multicast_list(struct net_device *dev);
+#endif
+static struct ethtool_ops netdev_ethtool_ops;
+
+/* helper-functions */
+static int init586(struct net_device *dev);
+static int check586(struct net_device *dev, unsigned long where, unsigned size);
+static void alloc586(struct net_device *dev);
+static void startrecv586(struct net_device *dev);
+static void *alloc_rfa(struct net_device *dev, void *ptr);
+static void elmc_rcv_int(struct net_device *dev);
+static void elmc_xmt_int(struct net_device *dev);
+static void elmc_rnr_int(struct net_device *dev);
+
+struct priv {
+	struct net_device_stats stats;
+	unsigned long base;
+	char *memtop;
+	unsigned long mapped_start;		/* Start of ioremap */
+	volatile struct rfd_struct *rfd_last, *rfd_top, *rfd_first;
+	volatile struct scp_struct *scp;	/* volatile is important */
+	volatile struct iscp_struct *iscp;	/* volatile is important */
+	volatile struct scb_struct *scb;	/* volatile is important */
+	volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS];
+#if (NUM_XMIT_BUFFS == 1)
+	volatile struct transmit_cmd_struct *xmit_cmds[2];
+	volatile struct nop_cmd_struct *nop_cmds[2];
+#else
+	volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
+	volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
+#endif
+	volatile int nop_point, num_recv_buffs;
+	volatile char *xmit_cbuffs[NUM_XMIT_BUFFS];
+	volatile int xmit_count, xmit_last;
+	volatile int slot;
+};
+
+#define elmc_attn586()  {elmc_do_attn586(dev->base_addr,ELMC_CTRL_INTE);}
+#define elmc_reset586() {elmc_do_reset586(dev->base_addr,ELMC_CTRL_INTE);}
+
+/* with interrupts disabled - this will clear the interrupt bit in the
+   3c523 control register, and won't put it back.  This effectively
+   disables interrupts on the card. */
+#define elmc_id_attn586()  {elmc_do_attn586(dev->base_addr,0);}
+#define elmc_id_reset586() {elmc_do_reset586(dev->base_addr,0);}
+
+/*************************************************************************/
+/*
+   Do a Channel Attention on the 3c523.  This is extremely board dependent.
+ */
+static void elmc_do_attn586(int ioaddr, int ints)
+{
+	/* the 3c523 requires a minimum of 500 ns.  The delays here might be
+	   a little too large, and hence they may cut the performance of the
+	   card slightly.  If someone who knows a little more about Linux
+	   timing would care to play with these, I'd appreciate it. */
+
+	/* this bit masking stuff is crap.  I'd rather have separate
+	   registers with strobe triggers for each of these functions.  <sigh>
+	   Ya take what ya got. */
+
+	outb(ELMC_CTRL_RST | 0x3 | ELMC_CTRL_CA | ints, ioaddr + ELMC_CTRL);
+	DELAY_16();		/* > 500 ns */
+	outb(ELMC_CTRL_RST | 0x3 | ints, ioaddr + ELMC_CTRL);
+}
+
+/*************************************************************************/
+/*
+   Reset the 82586 on the 3c523.  Also very board dependent.
+ */
+static void elmc_do_reset586(int ioaddr, int ints)
+{
+	/* toggle the RST bit low then high */
+	outb(0x3 | ELMC_CTRL_LBK, ioaddr + ELMC_CTRL);
+	DELAY_16();		/* > 500 ns */
+	outb(ELMC_CTRL_RST | ELMC_CTRL_LBK | 0x3, ioaddr + ELMC_CTRL);
+
+	elmc_do_attn586(ioaddr, ints);
+}
+
+/**********************************************
+ * close device
+ */
+
+static int elmc_close(struct net_device *dev)
+{
+	netif_stop_queue(dev);
+	elmc_id_reset586();	/* the hard way to stop the receiver */
+	free_irq(dev->irq, dev);
+	return 0;
+}
+
+/**********************************************
+ * open device
+ */
+
+static int elmc_open(struct net_device *dev)
+{
+	int ret;
+
+	elmc_id_attn586();	/* disable interrupts */
+
+	ret = request_irq(dev->irq, &elmc_interrupt, SA_SHIRQ | SA_SAMPLE_RANDOM,
+			  dev->name, dev);
+	if (ret) {
+		printk(KERN_ERR "%s: couldn't get irq %d\n", dev->name, dev->irq);
+		elmc_id_reset586();
+		return ret;
+	}
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	netif_start_queue(dev);
+	return 0;		/* most done by init */
+}
+
+/**********************************************
+ * Check to see if there's an 82586 out there.
+ */
+
+static int __init check586(struct net_device *dev, unsigned long where, unsigned size)
+{
+	struct priv *p = (struct priv *) dev->priv;
+	char *iscp_addrs[2];
+	int i = 0;
+
+	p->base = (unsigned long) isa_bus_to_virt((unsigned long)where) + size - 0x01000000;
+	p->memtop = isa_bus_to_virt((unsigned long)where) + size;
+	p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
+	memset((char *) p->scp, 0, sizeof(struct scp_struct));
+	p->scp->sysbus = SYSBUSVAL;	/* 1 = 8Bit-Bus, 0 = 16 Bit */
+
+	iscp_addrs[0] = isa_bus_to_virt((unsigned long)where);
+	iscp_addrs[1] = (char *) p->scp - sizeof(struct iscp_struct);
+
+	for (i = 0; i < 2; i++) {
+		p->iscp = (struct iscp_struct *) iscp_addrs[i];
+		memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
+
+		p->scp->iscp = make24(p->iscp);
+		p->iscp->busy = 1;
+
+		elmc_id_reset586();
+
+		/* reset586 does an implicit CA */
+
+		/* apparently, you sometimes have to kick the 82586 twice... */
+		elmc_id_attn586();
+		DELAY(1);
+
+		if (p->iscp->busy) {	/* i82586 clears 'busy' after successful init */
+			return 0;
+		}
+	}
+	return 1;
+}
+
+/******************************************************************
+ * set iscp at the right place, called by elmc_probe and open586.
+ */
+
+void alloc586(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+
+	elmc_id_reset586();
+	DELAY(2);
+
+	p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
+	p->scb = (struct scb_struct *) isa_bus_to_virt(dev->mem_start);
+	p->iscp = (struct iscp_struct *) ((char *) p->scp - sizeof(struct iscp_struct));
+
+	memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
+	memset((char *) p->scp, 0, sizeof(struct scp_struct));
+
+	p->scp->iscp = make24(p->iscp);
+	p->scp->sysbus = SYSBUSVAL;
+	p->iscp->scb_offset = make16(p->scb);
+
+	p->iscp->busy = 1;
+	elmc_id_reset586();
+	elmc_id_attn586();
+
+	DELAY(2);
+
+	if (p->iscp->busy) {
+		printk(KERN_ERR "%s: Init-Problems (alloc).\n", dev->name);
+	}
+	memset((char *) p->scb, 0, sizeof(struct scb_struct));
+}
+
+/*****************************************************************/
+
+static int elmc_getinfo(char *buf, int slot, void *d)
+{
+	int len = 0;
+	struct net_device *dev = (struct net_device *) d;
+	int i;
+
+	if (dev == NULL)
+		return len;
+
+	len += sprintf(buf + len, "Revision: 0x%x\n",
+		       inb(dev->base_addr + ELMC_REVISION) & 0xf);
+	len += sprintf(buf + len, "IRQ: %d\n", dev->irq);
+	len += sprintf(buf + len, "IO Address: %#lx-%#lx\n", dev->base_addr,
+		       dev->base_addr + ELMC_IO_EXTENT);
+	len += sprintf(buf + len, "Memory: %#lx-%#lx\n", dev->mem_start,
+		       dev->mem_end - 1);
+	len += sprintf(buf + len, "Transceiver: %s\n", dev->if_port ?
+		       "External" : "Internal");
+	len += sprintf(buf + len, "Device: %s\n", dev->name);
+	len += sprintf(buf + len, "Hardware Address:");
+	for (i = 0; i < 6; i++) {
+		len += sprintf(buf + len, " %02x", dev->dev_addr[i]);
+	}
+	buf[len++] = '\n';
+	buf[len] = 0;
+
+	return len;
+}				/* elmc_getinfo() */
+
+/*****************************************************************/
+
+static int __init do_elmc_probe(struct net_device *dev)
+{
+	static int slot;
+	int base_addr = dev->base_addr;
+	int irq = dev->irq;
+	u_char status = 0;
+	u_char revision = 0;
+	int i = 0;
+	unsigned int size = 0;
+	int retval;
+	struct priv *pr = dev->priv;
+
+	SET_MODULE_OWNER(dev);
+	if (MCA_bus == 0) {
+		return -ENODEV;
+	}
+	/* search through the slots for the 3c523. */
+	slot = mca_find_adapter(ELMC_MCA_ID, 0);
+	while (slot != -1) {
+		status = mca_read_stored_pos(slot, 2);
+
+		dev->irq=irq_table[(status & ELMC_STATUS_IRQ_SELECT) >> 6];
+		dev->base_addr=csr_table[(status & ELMC_STATUS_CSR_SELECT) >> 1];
+		
+		/*
+		   If we're trying to match a specified irq or IO address,
+		   we'll reject a match unless it's what we're looking for.
+		   Also reject it if the card is already in use.
+		 */
+
+		if ((irq && irq != dev->irq) || 
+		    (base_addr && base_addr != dev->base_addr)) {
+			slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
+			continue;
+		}
+		if (!request_region(dev->base_addr, ELMC_IO_EXTENT, DRV_NAME)) {
+			slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
+			continue;
+		}
+
+		/* found what we're looking for... */
+		break;
+	}
+
+	/* we didn't find any 3c523 in the slots we checked for */
+	if (slot == MCA_NOTFOUND)
+		return ((base_addr || irq) ? -ENXIO : -ENODEV);
+
+	mca_set_adapter_name(slot, "3Com 3c523 Etherlink/MC");
+	mca_set_adapter_procfn(slot, (MCA_ProcFn) elmc_getinfo, dev);
+
+	/* if we get this far, adapter has been found - carry on */
+	printk(KERN_INFO "%s: 3c523 adapter found in slot %d\n", dev->name, slot + 1);
+
+	/* Now we extract configuration info from the card.
+	   The 3c523 provides information in two of the POS registers, but
+	   the second one is only needed if we want to tell the card what IRQ
+	   to use.  I suspect that whoever sets the thing up initially would
+	   prefer we don't screw with those things.
+
+	   Note that we read the status info when we found the card...
+
+	   See 3c523.h for more details.
+	 */
+
+	/* revision is stored in the first 4 bits of the revision register */
+	revision = inb(dev->base_addr + ELMC_REVISION) & 0xf;
+
+	/* according to docs, we read the interrupt and write it back to
+	   the IRQ select register, since the POST might not configure the IRQ
+	   properly. */
+	switch (dev->irq) {
+	case 3:
+		mca_write_pos(slot, 3, 0x04);
+		break;
+	case 7:
+		mca_write_pos(slot, 3, 0x02);
+		break;
+	case 9:
+		mca_write_pos(slot, 3, 0x08);
+		break;
+	case 12:
+		mca_write_pos(slot, 3, 0x01);
+		break;
+	}
+
+	memset(pr, 0, sizeof(struct priv));
+	pr->slot = slot;
+
+	printk(KERN_INFO "%s: 3Com 3c523 Rev 0x%x at %#lx\n", dev->name, (int) revision,
+	       dev->base_addr);
+
+	/* Determine if we're using the on-board transceiver (i.e. coax) or
+	   an external one.  The information is pretty much useless, but I
+	   guess it's worth brownie points. */
+	dev->if_port = (status & ELMC_STATUS_DISABLE_THIN);
+
+	/* The 3c523 has a 24K chunk of memory.  The first 16K is the
+	   shared memory, while the last 8K is for the EtherStart BIOS ROM.
+	   Which we don't care much about here.  We'll just tell Linux that
+	   we're using 16K.  MCA won't permit address space conflicts caused
+	   by not mapping the other 8K. */
+	dev->mem_start = shm_table[(status & ELMC_STATUS_MEMORY_SELECT) >> 3];
+
+	/* We're using MCA, so it's a given that the information about memory
+	   size is correct.  The Crynwr drivers do something like this. */
+
+	elmc_id_reset586();	/* seems like a good idea before checking it... */
+
+	size = 0x4000;		/* check for 16K mem */
+	if (!check586(dev, dev->mem_start, size)) {
+		printk(KERN_ERR "%s: memprobe, Can't find memory at 0x%lx!\n", dev->name,
+		       dev->mem_start);
+		retval = -ENODEV;
+		goto err_out;
+	}
+	dev->mem_end = dev->mem_start + size;	/* set mem_end showed by 'ifconfig' */
+
+	pr->memtop = isa_bus_to_virt(dev->mem_start) + size;
+	pr->base = (unsigned long) isa_bus_to_virt(dev->mem_start) + size - 0x01000000;
+	alloc586(dev);
+
+	elmc_id_reset586();	/* make sure it doesn't generate spurious ints */
+
+	/* set number of receive-buffs according to memsize */
+	pr->num_recv_buffs = NUM_RECV_BUFFS_16;
+
+	/* dump all the assorted information */
+	printk(KERN_INFO "%s: IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->name,
+	       dev->irq, dev->if_port ? "ex" : "in", 
+	       dev->mem_start, dev->mem_end - 1);
+
+	/* The hardware address for the 3c523 is stored in the first six
+	   bytes of the IO address. */
+	printk(KERN_INFO "%s: hardware address ", dev->name);
+	for (i = 0; i < 6; i++) {
+		dev->dev_addr[i] = inb(dev->base_addr + i);
+		printk(" %02x", dev->dev_addr[i]);
+	}
+	printk("\n");
+
+	dev->open = &elmc_open;
+	dev->stop = &elmc_close;
+	dev->get_stats = &elmc_get_stats;
+	dev->hard_start_xmit = &elmc_send_packet;
+	dev->tx_timeout = &elmc_timeout;
+	dev->watchdog_timeo = HZ;
+#ifdef ELMC_MULTICAST
+	dev->set_multicast_list = &set_multicast_list;
+#else
+	dev->set_multicast_list = NULL;
+#endif
+	dev->ethtool_ops = &netdev_ethtool_ops;
+	
+	/* note that we haven't actually requested the IRQ from the kernel.
+	   That gets done in elmc_open().  I'm not sure that's such a good idea,
+	   but it works, so I'll go with it. */
+
+#ifndef ELMC_MULTICAST
+        dev->flags&=~IFF_MULTICAST;     /* Multicast doesn't work */
+#endif
+
+	return 0;
+err_out:
+	mca_set_adapter_procfn(slot, NULL, NULL);
+	release_region(dev->base_addr, ELMC_IO_EXTENT);
+	return retval;
+}
+ 
+static void cleanup_card(struct net_device *dev)
+{
+	mca_set_adapter_procfn(((struct priv *) (dev->priv))->slot, NULL, NULL);
+	release_region(dev->base_addr, ELMC_IO_EXTENT);
+}
+
+#ifndef MODULE
+struct net_device * __init elmc_probe(int unit)
+{
+	struct net_device *dev = alloc_etherdev(sizeof(struct priv));
+	int err;
+
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	sprintf(dev->name, "eth%d", unit);
+	netdev_boot_setup_check(dev);
+
+	err = do_elmc_probe(dev);
+	if (err)
+		goto out;
+	err = register_netdev(dev);
+	if (err)
+		goto out1;
+	return dev;
+out1:
+	cleanup_card(dev);
+out:
+	free_netdev(dev);
+	return ERR_PTR(err);
+}
+#endif
+
+/**********************************************
+ * init the chip (elmc-interrupt should be disabled?!)
+ * needs a correct 'allocated' memory
+ */
+
+static int init586(struct net_device *dev)
+{
+	void *ptr;
+	unsigned long s;
+	int i, result = 0;
+	struct priv *p = (struct priv *) dev->priv;
+	volatile struct configure_cmd_struct *cfg_cmd;
+	volatile struct iasetup_cmd_struct *ias_cmd;
+	volatile struct tdr_cmd_struct *tdr_cmd;
+	volatile struct mcsetup_cmd_struct *mc_cmd;
+	struct dev_mc_list *dmi = dev->mc_list;
+	int num_addrs = dev->mc_count;
+
+	ptr = (void *) ((char *) p->scb + sizeof(struct scb_struct));
+
+	cfg_cmd = (struct configure_cmd_struct *) ptr;	/* configure-command */
+	cfg_cmd->cmd_status = 0;
+	cfg_cmd->cmd_cmd = CMD_CONFIGURE | CMD_LAST;
+	cfg_cmd->cmd_link = 0xffff;
+
+	cfg_cmd->byte_cnt = 0x0a;	/* number of cfg bytes */
+	cfg_cmd->fifo = 0x08;	/* fifo-limit (8=tx:32/rx:64) */
+	cfg_cmd->sav_bf = 0x40;	/* hold or discard bad recv frames (bit 7) */
+	cfg_cmd->adr_len = 0x2e;	/* addr_len |!src_insert |pre-len |loopback */
+	cfg_cmd->priority = 0x00;
+	cfg_cmd->ifs = 0x60;
+	cfg_cmd->time_low = 0x00;
+	cfg_cmd->time_high = 0xf2;
+	cfg_cmd->promisc = 0;
+	if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC)) {
+		cfg_cmd->promisc = 1;
+		dev->flags |= IFF_PROMISC;
+	}
+	cfg_cmd->carr_coll = 0x00;
+
+	p->scb->cbl_offset = make16(cfg_cmd);
+
+	p->scb->cmd = CUC_START;	/* cmd.-unit start */
+	elmc_id_attn586();
+
+	s = jiffies;		/* warning: only active with interrupts on !! */
+	while (!(cfg_cmd->cmd_status & STAT_COMPL)) {
+		if (jiffies - s > 30*HZ/100)
+			break;
+	}
+
+	if ((cfg_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_COMPL | STAT_OK)) {
+		printk(KERN_WARNING "%s (elmc): configure command failed: %x\n", dev->name, cfg_cmd->cmd_status);
+		return 1;
+	}
+	/*
+	 * individual address setup
+	 */
+	ias_cmd = (struct iasetup_cmd_struct *) ptr;
+
+	ias_cmd->cmd_status = 0;
+	ias_cmd->cmd_cmd = CMD_IASETUP | CMD_LAST;
+	ias_cmd->cmd_link = 0xffff;
+
+	memcpy((char *) &ias_cmd->iaddr, (char *) dev->dev_addr, ETH_ALEN);
+
+	p->scb->cbl_offset = make16(ias_cmd);
+
+	p->scb->cmd = CUC_START;	/* cmd.-unit start */
+	elmc_id_attn586();
+
+	s = jiffies;
+	while (!(ias_cmd->cmd_status & STAT_COMPL)) {
+		if (jiffies - s > 30*HZ/100)
+			break;
+	}
+
+	if ((ias_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_OK | STAT_COMPL)) {
+		printk(KERN_WARNING "%s (elmc): individual address setup command failed: %04x\n", dev->name, ias_cmd->cmd_status);
+		return 1;
+	}
+	/*
+	 * TDR, wire check .. e.g. no resistor e.t.c
+	 */
+	tdr_cmd = (struct tdr_cmd_struct *) ptr;
+
+	tdr_cmd->cmd_status = 0;
+	tdr_cmd->cmd_cmd = CMD_TDR | CMD_LAST;
+	tdr_cmd->cmd_link = 0xffff;
+	tdr_cmd->status = 0;
+
+	p->scb->cbl_offset = make16(tdr_cmd);
+
+	p->scb->cmd = CUC_START;	/* cmd.-unit start */
+	elmc_attn586();
+
+	s = jiffies;
+	while (!(tdr_cmd->cmd_status & STAT_COMPL)) {
+		if (jiffies - s > 30*HZ/100) {
+			printk(KERN_WARNING "%s: %d Problems while running the TDR.\n", dev->name, __LINE__);
+			result = 1;
+			break;
+		}
+	}
+
+	if (!result) {
+		DELAY(2);	/* wait for result */
+		result = tdr_cmd->status;
+
+		p->scb->cmd = p->scb->status & STAT_MASK;
+		elmc_id_attn586();	/* ack the interrupts */
+
+		if (result & TDR_LNK_OK) {
+			/* empty */
+		} else if (result & TDR_XCVR_PRB) {
+			printk(KERN_WARNING "%s: TDR: Transceiver problem!\n", dev->name);
+		} else if (result & TDR_ET_OPN) {
+			printk(KERN_WARNING "%s: TDR: No correct termination %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
+		} else if (result & TDR_ET_SRT) {
+			if (result & TDR_TIMEMASK)	/* time == 0 -> strange :-) */
+				printk(KERN_WARNING "%s: TDR: Detected a short circuit %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
+		} else {
+			printk(KERN_WARNING "%s: TDR: Unknown status %04x\n", dev->name, result);
+		}
+	}
+	/*
+	 * ack interrupts
+	 */
+	p->scb->cmd = p->scb->status & STAT_MASK;
+	elmc_id_attn586();
+
+	/*
+	 * alloc nop/xmit-cmds
+	 */
+#if (NUM_XMIT_BUFFS == 1)
+	for (i = 0; i < 2; i++) {
+		p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
+		p->nop_cmds[i]->cmd_cmd = CMD_NOP;
+		p->nop_cmds[i]->cmd_status = 0;
+		p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
+		ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
+	}
+	p->xmit_cmds[0] = (struct transmit_cmd_struct *) ptr;	/* transmit cmd/buff 0 */
+	ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
+#else
+	for (i = 0; i < NUM_XMIT_BUFFS; i++) {
+		p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
+		p->nop_cmds[i]->cmd_cmd = CMD_NOP;
+		p->nop_cmds[i]->cmd_status = 0;
+		p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
+		ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
+		p->xmit_cmds[i] = (struct transmit_cmd_struct *) ptr;	/*transmit cmd/buff 0 */
+		ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
+	}
+#endif
+
+	ptr = alloc_rfa(dev, (void *) ptr);	/* init receive-frame-area */
+
+	/*
+	 * Multicast setup
+	 */
+
+	if (dev->mc_count) {
+		/* I don't understand this: do we really need memory after the init? */
+		int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
+		if (len <= 0) {
+			printk(KERN_ERR "%s: Ooooops, no memory for MC-Setup!\n", dev->name);
+		} else {
+			if (len < num_addrs) {
+				num_addrs = len;
+				printk(KERN_WARNING "%s: Sorry, can only apply %d MC-Address(es).\n",
+				       dev->name, num_addrs);
+			}
+			mc_cmd = (struct mcsetup_cmd_struct *) ptr;
+			mc_cmd->cmd_status = 0;
+			mc_cmd->cmd_cmd = CMD_MCSETUP | CMD_LAST;
+			mc_cmd->cmd_link = 0xffff;
+			mc_cmd->mc_cnt = num_addrs * 6;
+			for (i = 0; i < num_addrs; i++) {
+				memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr, 6);
+				dmi = dmi->next;
+			}
+			p->scb->cbl_offset = make16(mc_cmd);
+			p->scb->cmd = CUC_START;
+			elmc_id_attn586();
+			s = jiffies;
+			while (!(mc_cmd->cmd_status & STAT_COMPL)) {
+				if (jiffies - s > 30*HZ/100)
+					break;
+			}
+			if (!(mc_cmd->cmd_status & STAT_COMPL)) {
+				printk(KERN_WARNING "%s: Can't apply multicast-address-list.\n", dev->name);
+			}
+		}
+	}
+	/*
+	 * alloc xmit-buffs / init xmit_cmds
+	 */
+	for (i = 0; i < NUM_XMIT_BUFFS; i++) {
+		p->xmit_cbuffs[i] = (char *) ptr;	/* char-buffs */
+		ptr = (char *) ptr + XMIT_BUFF_SIZE;
+		p->xmit_buffs[i] = (struct tbd_struct *) ptr;	/* TBD */
+		ptr = (char *) ptr + sizeof(struct tbd_struct);
+		if ((void *) ptr > (void *) p->iscp) {
+			printk(KERN_ERR "%s: not enough shared-mem for your configuration!\n", dev->name);
+			return 1;
+		}
+		memset((char *) (p->xmit_cmds[i]), 0, sizeof(struct transmit_cmd_struct));
+		memset((char *) (p->xmit_buffs[i]), 0, sizeof(struct tbd_struct));
+		p->xmit_cmds[i]->cmd_status = STAT_COMPL;
+		p->xmit_cmds[i]->cmd_cmd = CMD_XMIT | CMD_INT;
+		p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
+		p->xmit_buffs[i]->next = 0xffff;
+		p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
+	}
+
+	p->xmit_count = 0;
+	p->xmit_last = 0;
+#ifndef NO_NOPCOMMANDS
+	p->nop_point = 0;
+#endif
+
+	/*
+	 * 'start transmitter' (nop-loop)
+	 */
+#ifndef NO_NOPCOMMANDS
+	p->scb->cbl_offset = make16(p->nop_cmds[0]);
+	p->scb->cmd = CUC_START;
+	elmc_id_attn586();
+	WAIT_4_SCB_CMD();
+#else
+	p->xmit_cmds[0]->cmd_link = 0xffff;
+	p->xmit_cmds[0]->cmd_cmd = CMD_XMIT | CMD_LAST | CMD_INT;
+#endif
+
+	return 0;
+}
+
+/******************************************************
+ * This is a helper routine for elmc_rnr_int() and init586().
+ * It sets up the Receive Frame Area (RFA).
+ */
+
+static void *alloc_rfa(struct net_device *dev, void *ptr)
+{
+	volatile struct rfd_struct *rfd = (struct rfd_struct *) ptr;
+	volatile struct rbd_struct *rbd;
+	int i;
+	struct priv *p = (struct priv *) dev->priv;
+
+	memset((char *) rfd, 0, sizeof(struct rfd_struct) * p->num_recv_buffs);
+	p->rfd_first = rfd;
+
+	for (i = 0; i < p->num_recv_buffs; i++) {
+		rfd[i].next = make16(rfd + (i + 1) % p->num_recv_buffs);
+	}
+	rfd[p->num_recv_buffs - 1].last = RFD_SUSP;	/* RU suspend */
+
+	ptr = (void *) (rfd + p->num_recv_buffs);
+
+	rbd = (struct rbd_struct *) ptr;
+	ptr = (void *) (rbd + p->num_recv_buffs);
+
+	/* clr descriptors */
+	memset((char *) rbd, 0, sizeof(struct rbd_struct) * p->num_recv_buffs);
+
+	for (i = 0; i < p->num_recv_buffs; i++) {
+		rbd[i].next = make16((rbd + (i + 1) % p->num_recv_buffs));
+		rbd[i].size = RECV_BUFF_SIZE;
+		rbd[i].buffer = make24(ptr);
+		ptr = (char *) ptr + RECV_BUFF_SIZE;
+	}
+
+	p->rfd_top = p->rfd_first;
+	p->rfd_last = p->rfd_first + p->num_recv_buffs - 1;
+
+	p->scb->rfa_offset = make16(p->rfd_first);
+	p->rfd_first->rbd_offset = make16(rbd);
+
+	return ptr;
+}
+
+
+/**************************************************
+ * Interrupt Handler ...
+ */
+
+static irqreturn_t
+elmc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr)
+{
+	struct net_device *dev = (struct net_device *) dev_id;
+	unsigned short stat;
+	struct priv *p;
+
+	if (dev == NULL) {
+		printk(KERN_ERR "elmc-interrupt: irq %d for unknown device.\n", (int) -(((struct pt_regs *) reg_ptr)->orig_eax + 2));
+		return IRQ_NONE;
+	} else if (!netif_running(dev)) {
+		/* The 3c523 has this habit of generating interrupts during the
+		   reset.  I'm not sure if the ni52 has this same problem, but it's
+		   really annoying if we haven't finished initializing it.  I was
+		   hoping all the elmc_id_* commands would disable this, but I
+		   might have missed a few. */
+
+		elmc_id_attn586();	/* ack inter. and disable any more */
+		return IRQ_HANDLED;
+	} else if (!(ELMC_CTRL_INT & inb(dev->base_addr + ELMC_CTRL))) {
+		/* wasn't this device */
+		return IRQ_NONE;
+	}
+	/* reading ELMC_CTRL also clears the INT bit. */
+
+	p = (struct priv *) dev->priv;
+
+	while ((stat = p->scb->status & STAT_MASK)) 
+	{
+		p->scb->cmd = stat;
+		elmc_attn586();	/* ack inter. */
+
+		if (stat & STAT_CX) {
+			/* command with I-bit set complete */
+			elmc_xmt_int(dev);
+		}
+		if (stat & STAT_FR) {
+			/* received a frame */
+			elmc_rcv_int(dev);
+		}
+#ifndef NO_NOPCOMMANDS
+		if (stat & STAT_CNA) {
+			/* CU went 'not ready' */
+			if (netif_running(dev)) {
+				printk(KERN_WARNING "%s: oops! CU has left active state. stat: %04x/%04x.\n", dev->name, (int) stat, (int) p->scb->status);
+			}
+		}
+#endif
+
+		if (stat & STAT_RNR) {
+			/* RU went 'not ready' */
+
+			if (p->scb->status & RU_SUSPEND) {
+				/* special case: RU_SUSPEND */
+
+				WAIT_4_SCB_CMD();
+				p->scb->cmd = RUC_RESUME;
+				elmc_attn586();
+			} else {
+				printk(KERN_WARNING "%s: Receiver-Unit went 'NOT READY': %04x/%04x.\n", dev->name, (int) stat, (int) p->scb->status);
+				elmc_rnr_int(dev);
+			}
+		}
+		WAIT_4_SCB_CMD();	/* wait for ack. (elmc_xmt_int can be faster than ack!!) */
+		if (p->scb->cmd) {	/* timed out? */
+			break;
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+/*******************************************************
+ * receive-interrupt
+ */
+
+static void elmc_rcv_int(struct net_device *dev)
+{
+	int status;
+	unsigned short totlen;
+	struct sk_buff *skb;
+	struct rbd_struct *rbd;
+	struct priv *p = (struct priv *) dev->priv;
+
+	for (; (status = p->rfd_top->status) & STAT_COMPL;) {
+		rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
+
+		if (status & STAT_OK) {		/* frame received without error? */
+			if ((totlen = rbd->status) & RBD_LAST) {	/* the first and the last buffer? */
+				totlen &= RBD_MASK;	/* length of this frame */
+				rbd->status = 0;
+				skb = (struct sk_buff *) dev_alloc_skb(totlen + 2);
+				if (skb != NULL) {
+					skb->dev = dev;
+					skb_reserve(skb, 2);	/* 16 byte alignment */
+					skb_put(skb,totlen);
+					eth_copy_and_sum(skb, (char *) p->base+(unsigned long) rbd->buffer,totlen,0);
+					skb->protocol = eth_type_trans(skb, dev);
+					netif_rx(skb);
+					dev->last_rx = jiffies;
+					p->stats.rx_packets++;
+					p->stats.rx_bytes += totlen;
+				} else {
+					p->stats.rx_dropped++;
+				}
+			} else {
+				printk(KERN_WARNING "%s: received oversized frame.\n", dev->name);
+				p->stats.rx_dropped++;
+			}
+		} else {	/* frame !(ok), only with 'save-bad-frames' */
+			printk(KERN_WARNING "%s: oops! rfd-error-status: %04x\n", dev->name, status);
+			p->stats.rx_errors++;
+		}
+		p->rfd_top->status = 0;
+		p->rfd_top->last = RFD_SUSP;
+		p->rfd_last->last = 0;	/* delete RU_SUSP  */
+		p->rfd_last = p->rfd_top;
+		p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next);	/* step to next RFD */
+	}
+}
+
+/**********************************************************
+ * handle 'Receiver went not ready'.
+ */
+
+static void elmc_rnr_int(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+
+	p->stats.rx_errors++;
+
+	WAIT_4_SCB_CMD();	/* wait for the last cmd */
+	p->scb->cmd = RUC_ABORT;	/* usually the RU is in the 'no resource'-state .. abort it now. */
+	elmc_attn586();
+	WAIT_4_SCB_CMD();	/* wait for accept cmd. */
+
+	alloc_rfa(dev, (char *) p->rfd_first);
+	startrecv586(dev);	/* restart RU */
+
+	printk(KERN_WARNING "%s: Receive-Unit restarted. Status: %04x\n", dev->name, p->scb->status);
+
+}
+
+/**********************************************************
+ * handle xmit - interrupt
+ */
+
+static void elmc_xmt_int(struct net_device *dev)
+{
+	int status;
+	struct priv *p = (struct priv *) dev->priv;
+
+	status = p->xmit_cmds[p->xmit_last]->cmd_status;
+	if (!(status & STAT_COMPL)) {
+		printk(KERN_WARNING "%s: strange .. xmit-int without a 'COMPLETE'\n", dev->name);
+	}
+	if (status & STAT_OK) {
+		p->stats.tx_packets++;
+		p->stats.collisions += (status & TCMD_MAXCOLLMASK);
+	} else {
+		p->stats.tx_errors++;
+		if (status & TCMD_LATECOLL) {
+			printk(KERN_WARNING "%s: late collision detected.\n", dev->name);
+			p->stats.collisions++;
+		} else if (status & TCMD_NOCARRIER) {
+			p->stats.tx_carrier_errors++;
+			printk(KERN_WARNING "%s: no carrier detected.\n", dev->name);
+		} else if (status & TCMD_LOSTCTS) {
+			printk(KERN_WARNING "%s: loss of CTS detected.\n", dev->name);
+		} else if (status & TCMD_UNDERRUN) {
+			p->stats.tx_fifo_errors++;
+			printk(KERN_WARNING "%s: DMA underrun detected.\n", dev->name);
+		} else if (status & TCMD_MAXCOLL) {
+			printk(KERN_WARNING "%s: Max. collisions exceeded.\n", dev->name);
+			p->stats.collisions += 16;
+		}
+	}
+
+#if (NUM_XMIT_BUFFS != 1)
+	if ((++p->xmit_last) == NUM_XMIT_BUFFS) {
+		p->xmit_last = 0;
+	}
+#endif
+
+	netif_wake_queue(dev);
+}
+
+/***********************************************************
+ * (re)start the receiver
+ */
+
+static void startrecv586(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+
+	p->scb->rfa_offset = make16(p->rfd_first);
+	p->scb->cmd = RUC_START;
+	elmc_attn586();		/* start cmd. */
+	WAIT_4_SCB_CMD();	/* wait for accept cmd. (no timeout!!) */
+}
+
+/******************************************************
+ * timeout
+ */
+ 
+static void elmc_timeout(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+	/* COMMAND-UNIT active? */
+	if (p->scb->status & CU_ACTIVE) {
+#ifdef DEBUG
+		printk("%s: strange ... timeout with CU active?!?\n", dev->name);
+		printk("%s: X0: %04x N0: %04x N1: %04x %d\n", dev->name, (int) p->xmit_cmds[0]->cmd_status, (int) p->nop_cmds[0]->cmd_status, (int) p->nop_cmds[1]->cmd_status, (int) p->nop_point);
+#endif
+		p->scb->cmd = CUC_ABORT;
+		elmc_attn586();
+		WAIT_4_SCB_CMD();
+		p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
+		p->scb->cmd = CUC_START;
+		elmc_attn586();
+		WAIT_4_SCB_CMD();
+		netif_wake_queue(dev);
+	} else {
+#ifdef DEBUG
+		printk("%s: xmitter timed out, try to restart! stat: %04x\n", dev->name, p->scb->status);
+		printk("%s: command-stats: %04x %04x\n", dev->name, p->xmit_cmds[0]->cmd_status, p->xmit_cmds[1]->cmd_status);
+#endif
+		elmc_close(dev);
+		elmc_open(dev);
+	}
+}
+ 
+/******************************************************
+ * send frame
+ */
+
+static int elmc_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	int len;
+	int i;
+#ifndef NO_NOPCOMMANDS
+	int next_nop;
+#endif
+	struct priv *p = (struct priv *) dev->priv;
+
+	netif_stop_queue(dev);
+
+	len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
+	
+	if (len != skb->len)
+		memset((char *) p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
+	memcpy((char *) p->xmit_cbuffs[p->xmit_count], (char *) (skb->data), skb->len);
+
+#if (NUM_XMIT_BUFFS == 1)
+#ifdef NO_NOPCOMMANDS
+	p->xmit_buffs[0]->size = TBD_LAST | len;
+	for (i = 0; i < 16; i++) {
+		p->scb->cbl_offset = make16(p->xmit_cmds[0]);
+		p->scb->cmd = CUC_START;
+		p->xmit_cmds[0]->cmd_status = 0;
+			elmc_attn586();
+		dev->trans_start = jiffies;
+		if (!i) {
+			dev_kfree_skb(skb);
+		}
+		WAIT_4_SCB_CMD();
+		if ((p->scb->status & CU_ACTIVE)) {	/* test it, because CU sometimes doesn't start immediately */
+			break;
+		}
+		if (p->xmit_cmds[0]->cmd_status) {
+			break;
+		}
+		if (i == 15) {
+			printk(KERN_WARNING "%s: Can't start transmit-command.\n", dev->name);
+		}
+	}
+#else
+	next_nop = (p->nop_point + 1) & 0x1;
+	p->xmit_buffs[0]->size = TBD_LAST | len;
+	
+	p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link
+	    = make16((p->nop_cmds[next_nop]));
+	p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
+
+	p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
+	dev->trans_start = jiffies;
+	p->nop_point = next_nop;
+	dev_kfree_skb(skb);
+#endif
+#else
+	p->xmit_buffs[p->xmit_count]->size = TBD_LAST | len;
+	if ((next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS) {
+		next_nop = 0;
+	}
+	p->xmit_cmds[p->xmit_count]->cmd_status = 0;
+	p->xmit_cmds[p->xmit_count]->cmd_link = p->nop_cmds[next_nop]->cmd_link
+	    = make16((p->nop_cmds[next_nop]));
+	p->nop_cmds[next_nop]->cmd_status = 0;
+		p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
+	dev->trans_start = jiffies;
+	p->xmit_count = next_nop;
+	if (p->xmit_count != p->xmit_last)
+		netif_wake_queue(dev);
+	dev_kfree_skb(skb);
+#endif
+	return 0;
+}
+
+/*******************************************
+ * Someone wanna have the statistics
+ */
+
+static struct net_device_stats *elmc_get_stats(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+	unsigned short crc, aln, rsc, ovrn;
+
+	crc = p->scb->crc_errs;	/* get error-statistic from the ni82586 */
+	p->scb->crc_errs -= crc;
+	aln = p->scb->aln_errs;
+	p->scb->aln_errs -= aln;
+	rsc = p->scb->rsc_errs;
+	p->scb->rsc_errs -= rsc;
+	ovrn = p->scb->ovrn_errs;
+	p->scb->ovrn_errs -= ovrn;
+
+	p->stats.rx_crc_errors += crc;
+	p->stats.rx_fifo_errors += ovrn;
+	p->stats.rx_frame_errors += aln;
+	p->stats.rx_dropped += rsc;
+
+	return &p->stats;
+}
+
+/********************************************************
+ * Set MC list ..
+ */
+
+#ifdef ELMC_MULTICAST
+static void set_multicast_list(struct net_device *dev)
+{
+	if (!dev->start) {
+		/* without a running interface, promiscuous doesn't work */
+		return;
+	}
+	dev->start = 0;
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	dev->start = 1;
+}
+#endif
+
+static void netdev_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	strcpy(info->driver, DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	sprintf(info->bus_info, "MCA 0x%lx", dev->base_addr);
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+	.get_drvinfo		= netdev_get_drvinfo,
+};
+
+#ifdef MODULE
+
+/* Increase if needed ;) */
+#define MAX_3C523_CARDS 4
+
+static struct net_device *dev_elmc[MAX_3C523_CARDS];
+static int irq[MAX_3C523_CARDS];
+static int io[MAX_3C523_CARDS];
+module_param_array(irq, int, NULL, 0);
+module_param_array(io, int, NULL, 0);
+MODULE_PARM_DESC(io, "EtherLink/MC I/O base address(es)");
+MODULE_PARM_DESC(irq, "EtherLink/MC IRQ number(s)");
+
+int init_module(void)
+{
+	int this_dev,found = 0;
+
+	/* Loop until we either can't find any more cards, or we have MAX_3C523_CARDS */	
+	for(this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
+		struct net_device *dev = alloc_etherdev(sizeof(struct priv));
+		if (!dev)
+			break;
+		dev->irq=irq[this_dev];
+		dev->base_addr=io[this_dev];
+		if (do_elmc_probe(dev) == 0) {
+			if (register_netdev(dev) == 0) {
+				dev_elmc[this_dev] = dev;
+				found++;
+				continue;
+			}
+			cleanup_card(dev);
+		}
+		free_netdev(dev);
+		if (io[this_dev]==0)
+			break;
+		printk(KERN_WARNING "3c523.c: No 3c523 card found at io=%#x\n",io[this_dev]);
+	}
+
+	if(found==0) {
+		if(io[0]==0) printk(KERN_NOTICE "3c523.c: No 3c523 cards found\n");
+		return -ENXIO;
+	} else return 0;
+}
+
+void cleanup_module(void)
+{
+	int this_dev;
+	for (this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
+		struct net_device *dev = dev_elmc[this_dev];
+		if (dev) {
+			unregister_netdev(dev);
+			cleanup_card(dev);
+			free_netdev(dev);
+		}
+	}
+}
+
+#endif				/* MODULE */