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, 1386 insertions, 0 deletions

diff --git a/drivers/net/ni52.c b/drivers/net/ni52.c
new file mode 100644
index 000000000000..fa854c8fde75
--- /dev/null
+++ b/drivers/net/ni52.c
@@ -0,0 +1,1386 @@
+/*
+ * net-3-driver for the NI5210 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.
+ *
+ * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later)
+ * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de)
+ *    [feel free to mail ....]
+ *
+ * when using as module: (no autoprobing!)
+ *   compile with:
+ *       gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ -DMODULE -c ni52.c
+ *   run with e.g:
+ *       insmod ni52.o io=0x360 irq=9 memstart=0xd0000 memend=0xd4000
+ *
+ * CAN YOU PLEASE REPORT ME YOUR PERFORMANCE EXPERIENCES !!.
+ *
+ * If you find a bug, please report me:
+ *   The kernel panic output and any kmsg from the ni52 driver
+ *   the ni5210-driver-version and the linux-kernel version
+ *   how many shared memory (memsize) on the netcard,
+ *   bootprom: yes/no, base_addr, mem_start
+ *   maybe the ni5210-card revision and the i82586 version
+ *
+ * autoprobe for: base_addr: 0x300,0x280,0x360,0x320,0x340
+ *                mem_start: 0xd0000,0xd2000,0xc8000,0xca000,0xd4000,0xd6000,
+ *                           0xd8000,0xcc000,0xce000,0xda000,0xdc000
+ *
+ * sources:
+ *   skeleton.c from Donald Becker
+ *
+ * I have also done a look in the following sources: (mail me if you need them)
+ *   crynwr-packet-driver by Russ Nelson
+ *   Garret A. Wollman's (fourth) i82586-driver for BSD
+ *   (before getting an i82596 (yes 596 not 586) manual, the existing drivers helped
+ *    me a lot to understand this tricky chip.)
+ *
+ * Known Problems:
+ *   The internal sysbus seems to be slow. So we often lose packets because of
+ *   overruns while receiving from a fast remote host.
+ *   This can slow down TCP connections. Maybe the newer ni5210 cards are better.
+ *   my experience is, that if a machine sends with more than about 500-600K/s
+ *   the fifo/sysbus overflows.
+ *
+ * IMPORTANT NOTE:
+ *   On fast networks, it's a (very) good idea to have 16K shared memory. With
+ *   8K, we can store only 4 receive frames, so it can (easily) happen that a remote
+ *   machine 'overruns' our system.
+ *
+ * Known i82586/card problems (I'm sure, there are many more!):
+ *   Running the NOP-mode, the i82586 sometimes seems to forget to report
+ *   every xmit-interrupt until we restart the CU.
+ *   Another MAJOR bug is, that the RU sometimes seems to ignore the EL-Bit
+ *   in the RBD-Struct which indicates an end of the RBD queue.
+ *   Instead, the RU fetches another (randomly selected and
+ *   usually used) RBD and begins to fill it. (Maybe, this happens only if
+ *   the last buffer from the previous RFD fits exact into the queue and
+ *   the next RFD can't fetch an initial RBD. Anyone knows more? )
+ *
+ * results from ftp performance tests with Linux 1.2.5
+ *   send and receive about 350-400 KByte/s (peak up to 460 kbytes/s)
+ *   sending in NOP-mode: peak performance up to 530K/s (but better don't run this mode)
+ */
+
+/*
+ * 29.Sept.96: virt_to_bus changes for new memory scheme
+ * 19.Feb.96: more Mcast changes, module support (MH)
+ *
+ * 18.Nov.95: Mcast changes (AC).
+ *
+ * 23.April.95: fixed(?) receiving problems by configuring a RFD more
+ *              than the number of RBD's. Can maybe cause other problems.
+ * 18.April.95: Added MODULE support (MH)
+ * 17.April.95: MC related changes in init586() and set_multicast_list().
+ *              removed use of 'jiffies' in init586() (MH)
+ *
+ * 19.Sep.94: Added Multicast support (not tested yet) (MH)
+ *
+ * 18.Sep.94: Workaround for 'EL-Bug'. Removed flexible RBD-handling.
+ *            Now, every RFD has exact one RBD. (MH)
+ *
+ * 14.Sep.94: added promiscuous mode, a few cleanups (MH)
+ *
+ * 19.Aug.94: changed request_irq() parameter (MH)
+ *
+ * 20.July.94: removed cleanup bugs, removed a 16K-mem-probe-bug (MH)
+ *
+ * 19.July.94: lotsa cleanups .. (MH)
+ *
+ * 17.July.94: some patches ... verified to run with 1.1.29 (MH)
+ *
+ * 4.July.94: patches for Linux 1.1.24  (MH)
+ *
+ * 26.March.94: patches for Linux 1.0 and iomem-auto-probe (MH)
+ *
+ * 30.Sep.93: Added nop-chain .. driver now runs with only one Xmit-Buff, too (MH)
+ *
+ * < 30.Sep.93: first versions
+ */
+
+static int debuglevel;	/* debug-printk 0: off 1: a few 2: more */
+static int automatic_resume; /* experimental .. better should be zero */
+static int rfdadd;	/* rfdadd=1 may be better for 8K MEM cards */
+static int fifo=0x8;	/* don't change */
+
+/* #define REALLY_SLOW_IO */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/io.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include "ni52.h"
+
+#define DRV_NAME "ni52"
+
+#define DEBUG       /* debug on */
+#define SYSBUSVAL 1 /* 8 Bit */
+
+#define ni_attn586()  {outb(0,dev->base_addr+NI52_ATTENTION);}
+#define ni_reset586() {outb(0,dev->base_addr+NI52_RESET);}
+#define ni_disint()   {outb(0,dev->base_addr+NI52_INTDIS);}
+#define ni_enaint()   {outb(0,dev->base_addr+NI52_INTENA);}
+
+#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 ))
+
+/******************* 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 these 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 */
+#define NO_NOPCOMMANDS      /* only possible with NUM_XMIT_BUFFS=1 */
+
+/**************************************************************************/
+
+/* different DELAYs */
+#define DELAY(x) mdelay(32 * x);
+#define DELAY_16(); { udelay(16); }
+#define DELAY_18(); { udelay(4); }
+
+/* wait for command with timeout: */
+#define WAIT_4_SCB_CMD() \
+{ int i; \
+  for(i=0;i<16384;i++) { \
+    if(!p->scb->cmd_cuc) break; \
+    DELAY_18(); \
+    if(i == 16383) { \
+      printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
+       if(!p->reseted) { p->reseted = 1; ni_reset586(); } } } }
+
+#define WAIT_4_SCB_CMD_RUC() { int i; \
+  for(i=0;i<16384;i++) { \
+    if(!p->scb->cmd_ruc) break; \
+    DELAY_18(); \
+    if(i == 16383) { \
+      printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
+       if(!p->reseted) { p->reseted = 1; ni_reset586(); } } } }
+
+#define WAIT_4_STAT_COMPL(addr) { int i; \
+   for(i=0;i<32767;i++) { \
+     if((addr)->cmd_status & STAT_COMPL) break; \
+     DELAY_16(); DELAY_16(); } }
+
+#define NI52_TOTAL_SIZE 16
+#define NI52_ADDR0 0x02
+#define NI52_ADDR1 0x07
+#define NI52_ADDR2 0x01
+
+static int     ni52_probe1(struct net_device *dev,int ioaddr);
+static irqreturn_t ni52_interrupt(int irq,void *dev_id,struct pt_regs *reg_ptr);
+static int     ni52_open(struct net_device *dev);
+static int     ni52_close(struct net_device *dev);
+static int     ni52_send_packet(struct sk_buff *,struct net_device *);
+static struct  net_device_stats *ni52_get_stats(struct net_device *dev);
+static void    set_multicast_list(struct net_device *dev);
+static void    ni52_timeout(struct net_device *dev);
+#if 0
+static void    ni52_dump(struct net_device *,void *);
+#endif
+
+/* helper-functions */
+static int     init586(struct net_device *dev);
+static int     check586(struct net_device *dev,char *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    ni52_rcv_int(struct net_device *dev);
+static void    ni52_xmt_int(struct net_device *dev);
+static void    ni52_rnr_int(struct net_device *dev);
+
+struct priv
+{
+	struct net_device_stats stats;
+	unsigned long base;
+	char *memtop;
+	long int lock;
+	int reseted;
+	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;
+};
+
+/**********************************************
+ * close device
+ */
+static int ni52_close(struct net_device *dev)
+{
+	free_irq(dev->irq, dev);
+
+	ni_reset586(); /* the hard way to stop the receiver */
+
+	netif_stop_queue(dev);
+
+	return 0;
+}
+
+/**********************************************
+ * open device
+ */
+static int ni52_open(struct net_device *dev)
+{
+	int ret;
+
+	ni_disint();
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	ni_enaint();
+
+	ret = request_irq(dev->irq, &ni52_interrupt,0,dev->name,dev);
+	if (ret)
+	{
+		ni_reset586();
+		return ret;
+	}
+
+	netif_start_queue(dev);
+
+	return 0; /* most done by init */
+}
+
+/**********************************************
+ * Check to see if there's an 82586 out there.
+ */
+static int check586(struct net_device *dev,char *where,unsigned size)
+{
+	struct priv pb;
+	struct priv *p = /* (struct priv *) dev->priv*/ &pb;
+	char *iscp_addrs[2];
+	int i;
+
+	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));
+	for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
+		if(((char *)p->scp)[i])
+			return 0;
+	p->scp->sysbus = SYSBUSVAL;				/* 1 = 8Bit-Bus, 0 = 16 Bit */
+	if(p->scp->sysbus != SYSBUSVAL)
+		return 0;
+
+	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;
+
+		ni_reset586();
+		ni_attn586();
+		DELAY(1);	/* wait a while... */
+
+		if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
+			return 0;
+	}
+	return 1;
+}
+
+/******************************************************************
+ * set iscp at the right place, called by ni52_probe1 and open586.
+ */
+static void alloc586(struct net_device *dev)
+{
+	struct priv *p =	(struct priv *) dev->priv;
+
+	ni_reset586();
+	DELAY(1);
+
+	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;
+	ni_reset586();
+	ni_attn586();
+
+	DELAY(1);
+
+	if(p->iscp->busy)
+		printk("%s: Init-Problems (alloc).\n",dev->name);
+
+	p->reseted = 0;
+
+	memset((char *)p->scb,0,sizeof(struct scb_struct));
+}
+
+/* set: io,irq,memstart,memend or set it when calling insmod */
+static int irq=9;
+static int io=0x300;
+static long memstart;	/* e.g 0xd0000 */
+static long memend;	/* e.g 0xd4000 */
+
+/**********************************************
+ * probe the ni5210-card
+ */
+struct net_device * __init ni52_probe(int unit)
+{
+	struct net_device *dev = alloc_etherdev(sizeof(struct priv));
+	static int ports[] = {0x300, 0x280, 0x360 , 0x320 , 0x340, 0};
+	int *port;
+	int err = 0;
+
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	if (unit >= 0) {
+		sprintf(dev->name, "eth%d", unit);
+		netdev_boot_setup_check(dev);
+		io = dev->base_addr;
+		irq = dev->irq;
+		memstart = dev->mem_start;
+		memend = dev->mem_end;
+	}
+
+	SET_MODULE_OWNER(dev);
+
+	if (io > 0x1ff)	{	/* Check a single specified location. */
+		err = ni52_probe1(dev, io);
+	} else if (io > 0) {		/* Don't probe at all. */
+		err = -ENXIO;
+	} else {
+		for (port = ports; *port && ni52_probe1(dev, *port) ; port++)
+			;
+		if (*port)
+			goto got_it;
+#ifdef FULL_IO_PROBE
+		for (io = 0x200; io < 0x400 && ni52_probe1(dev, io); io += 8)
+			;
+		if (io < 0x400)
+			goto got_it;
+#endif
+		err = -ENODEV;
+	}
+	if (err)
+		goto out;
+got_it:
+	err = register_netdev(dev);
+	if (err)
+		goto out1;
+	return dev;
+out1:
+	release_region(dev->base_addr, NI52_TOTAL_SIZE);
+out:
+	free_netdev(dev);
+	return ERR_PTR(err);
+}
+
+static int __init ni52_probe1(struct net_device *dev,int ioaddr)
+{
+	int i, size, retval;
+
+	dev->base_addr = ioaddr;
+	dev->irq = irq;
+	dev->mem_start = memstart;
+	dev->mem_end = memend;
+
+	if (!request_region(ioaddr, NI52_TOTAL_SIZE, DRV_NAME))
+		return -EBUSY;
+
+	if( !(inb(ioaddr+NI52_MAGIC1) == NI52_MAGICVAL1) ||
+	    !(inb(ioaddr+NI52_MAGIC2) == NI52_MAGICVAL2)) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	for(i=0;i<ETH_ALEN;i++)
+		dev->dev_addr[i] = inb(dev->base_addr+i);
+
+	if(dev->dev_addr[0] != NI52_ADDR0 || dev->dev_addr[1] != NI52_ADDR1
+		 || dev->dev_addr[2] != NI52_ADDR2) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	printk(KERN_INFO "%s: NI5210 found at %#3lx, ",dev->name,dev->base_addr);
+
+	/*
+	 * check (or search) IO-Memory, 8K and 16K
+	 */
+#ifdef MODULE
+	size = dev->mem_end - dev->mem_start;
+	if(size != 0x2000 && size != 0x4000) {
+		printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 bytes.\n",dev->name,size);
+		retval = -ENODEV;
+		goto out;
+	}
+	if(!check586(dev,(char *) dev->mem_start,size)) {
+		printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
+		retval = -ENODEV;
+		goto out;
+	}
+#else
+	if(dev->mem_start != 0) /* no auto-mem-probe */
+	{
+		size = 0x4000; /* check for 16K mem */
+		if(!check586(dev,(char *) dev->mem_start,size)) {
+			size = 0x2000; /* check for 8K mem */
+			if(!check586(dev,(char *) dev->mem_start,size)) {
+				printk("?memprobe, Can't find memory at 0x%lx!\n",dev->mem_start);
+				retval = -ENODEV;
+				goto out;
+			}
+		}
+	}
+	else
+	{
+		static long memaddrs[] = { 0xc8000,0xca000,0xcc000,0xce000,0xd0000,0xd2000,
+					0xd4000,0xd6000,0xd8000,0xda000,0xdc000, 0 };
+		for(i=0;;i++)
+		{
+			if(!memaddrs[i]) {
+				printk("?memprobe, Can't find io-memory!\n");
+				retval = -ENODEV;
+				goto out;
+			}
+			dev->mem_start = memaddrs[i];
+			size = 0x2000; /* check for 8K mem */
+			if(check586(dev,(char *)dev->mem_start,size)) /* 8K-check */
+				break;
+			size = 0x4000; /* check for 16K mem */
+			if(check586(dev,(char *)dev->mem_start,size)) /* 16K-check */
+				break;
+		}
+	}
+	dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */
+#endif
+
+	memset((char *) dev->priv,0,sizeof(struct priv));
+
+	((struct priv *) (dev->priv))->memtop = isa_bus_to_virt(dev->mem_start) + size;
+	((struct priv *) (dev->priv))->base =	(unsigned long) isa_bus_to_virt(dev->mem_start) + size - 0x01000000;
+	alloc586(dev);
+
+	/* set number of receive-buffs according to memsize */
+	if(size == 0x2000)
+		((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_8;
+	else
+		((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_16;
+
+	printk("Memaddr: 0x%lx, Memsize: %d, ",dev->mem_start,size);
+
+	if(dev->irq < 2)
+	{
+		unsigned long irq_mask;
+
+		irq_mask = probe_irq_on();
+		ni_reset586();
+		ni_attn586();
+
+		mdelay(20);
+		dev->irq = probe_irq_off(irq_mask);
+		if(!dev->irq)
+		{
+			printk("?autoirq, Failed to detect IRQ line!\n");
+			retval = -EAGAIN;
+			goto out;
+		}
+		printk("IRQ %d (autodetected).\n",dev->irq);
+	}
+	else	{
+		if(dev->irq == 2)
+			dev->irq = 9;
+		printk("IRQ %d (assigned and not checked!).\n",dev->irq);
+	}
+
+	dev->open		= ni52_open;
+	dev->stop		= ni52_close;
+	dev->get_stats		= ni52_get_stats;
+	dev->tx_timeout 	= ni52_timeout;
+	dev->watchdog_timeo	= HZ/20;
+	dev->hard_start_xmit 	= ni52_send_packet;
+	dev->set_multicast_list = set_multicast_list;
+
+	dev->if_port 		= 0;
+
+	return 0;
+out:
+	release_region(ioaddr, NI52_TOTAL_SIZE);
+	return retval;
+}
+
+/**********************************************
+ * init the chip (ni52-interrupt should be disabled?!)
+ * needs a correct 'allocated' memory
+ */
+
+static int init586(struct net_device *dev)
+{
+	void *ptr;
+	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		= fifo; /* 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) {
+		int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
+		if(num_addrs > len)	{
+			printk("%s: switching to promisc. mode\n",dev->name);
+			dev->flags|=IFF_PROMISC;
+		}
+	}
+	if(dev->flags&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_ruc		= 0;
+
+	p->scb->cmd_cuc		= CUC_START; /* cmd.-unit start */
+	ni_attn586();
+
+	WAIT_4_STAT_COMPL(cfg_cmd);
+
+	if((cfg_cmd->cmd_status & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
+	{
+		printk("%s: 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 = CUC_START; /* cmd.-unit start */
+	ni_attn586();
+
+	WAIT_4_STAT_COMPL(ias_cmd);
+
+	if((ias_cmd->cmd_status & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
+		printk("%s (ni52): 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 = CUC_START; /* cmd.-unit start */
+	ni_attn586();
+
+	WAIT_4_STAT_COMPL(tdr_cmd);
+
+	if(!(tdr_cmd->cmd_status & STAT_COMPL))
+	{
+		printk("%s: Problems while running the TDR.\n",dev->name);
+	}
+	else
+	{
+		DELAY_16(); /* wait for result */
+		result = tdr_cmd->status;
+
+		p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
+		ni_attn586(); /* ack the interrupts */
+
+		if(result & TDR_LNK_OK)
+			;
+		else if(result & TDR_XCVR_PRB)
+			printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
+		else if(result & TDR_ET_OPN)
+			printk("%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("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
+		}
+		else
+			printk("%s: TDR: Unknown status %04x\n",dev->name,result);
+	}
+
+	/*
+	 * Multicast setup
+	 */
+	if(num_addrs && !(dev->flags & IFF_PROMISC) )
+	{
+		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++,dmi=dmi->next)
+			memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr,6);
+
+		p->scb->cbl_offset = make16(mc_cmd);
+		p->scb->cmd_cuc = CUC_START;
+		ni_attn586();
+
+		WAIT_4_STAT_COMPL(mc_cmd);
+
+		if( (mc_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
+			printk("%s: Can't apply multicast-address-list.\n",dev->name);
+	}
+
+	/*
+	 * 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);
+	}
+#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);
+	}
+#endif
+
+	ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */
+
+	/*
+	 * alloc xmit-buffs / init xmit_cmds
+	 */
+	for(i=0;i<NUM_XMIT_BUFFS;i++)
+	{
+		p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
+		ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
+		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("%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_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
+		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'
+		*/
+#ifndef NO_NOPCOMMANDS
+	p->scb->cbl_offset = make16(p->nop_cmds[0]);
+	p->scb->cmd_cuc = CUC_START;
+	ni_attn586();
+	WAIT_4_SCB_CMD();
+#else
+	p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
+	p->xmit_cmds[0]->cmd_cmd	= CMD_XMIT | CMD_SUSPEND | CMD_INT;
+#endif
+
+	/*
+	 * ack. interrupts
+	 */
+	p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
+	ni_attn586();
+	DELAY_16();
+
+	ni_enaint();
+
+	return 0;
+}
+
+/******************************************************
+ * This is a helper routine for ni52_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+rfdadd));
+	p->rfd_first = rfd;
+
+	for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
+		rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
+		rfd[i].rbd_offset = 0xffff;
+	}
+	rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;	 /* RU suspend */
+
+	ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
+
+	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 + rfdadd);
+
+	p->scb->rfa_offset		= make16(p->rfd_first);
+	p->rfd_first->rbd_offset	= make16(rbd);
+
+	return ptr;
+}
+
+
+/**************************************************
+ * Interrupt Handler ...
+ */
+
+static irqreturn_t ni52_interrupt(int irq,void *dev_id,struct pt_regs *reg_ptr)
+{
+	struct net_device *dev = dev_id;
+	unsigned short stat;
+	int cnt=0;
+	struct priv *p;
+
+	if (!dev) {
+		printk ("ni5210-interrupt: irq %d for unknown device.\n",irq);
+		return IRQ_NONE;
+	}
+	p = (struct priv *) dev->priv;
+
+	if(debuglevel > 1)
+		printk("I");
+
+	WAIT_4_SCB_CMD(); /* wait for last command	*/
+
+	while((stat=p->scb->cus & STAT_MASK))
+	{
+		p->scb->cmd_cuc = stat;
+		ni_attn586();
+
+		if(stat & STAT_FR)	 /* received a frame */
+			ni52_rcv_int(dev);
+
+		if(stat & STAT_RNR) /* RU went 'not ready' */
+		{
+			printk("(R)");
+			if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
+			{
+				WAIT_4_SCB_CMD();
+				p->scb->cmd_ruc = RUC_RESUME;
+				ni_attn586();
+				WAIT_4_SCB_CMD_RUC();
+			}
+			else
+			{
+				printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
+				ni52_rnr_int(dev);
+			}
+		}
+
+		if(stat & STAT_CX)		/* command with I-bit set complete */
+			 ni52_xmt_int(dev);
+
+#ifndef NO_NOPCOMMANDS
+		if(stat & STAT_CNA)	/* CU went 'not ready' */
+		{
+			if(netif_running(dev))
+				printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
+		}
+#endif
+
+		if(debuglevel > 1)
+			printk("%d",cnt++);
+
+		WAIT_4_SCB_CMD(); /* wait for ack. (ni52_xmt_int can be faster than ack!!) */
+		if(p->scb->cmd_cuc)	 /* timed out? */
+		{
+			printk("%s: Acknowledge timed out.\n",dev->name);
+			ni_disint();
+			break;
+		}
+	}
+
+	if(debuglevel > 1)
+		printk("i");
+	return IRQ_HANDLED;
+}
+
+/*******************************************************
+ * receive-interrupt
+ */
+
+static void ni52_rcv_int(struct net_device *dev)
+{
+	int status,cnt=0;
+	unsigned short totlen;
+	struct sk_buff *skb;
+	struct rbd_struct *rbd;
+	struct priv *p = (struct priv *) dev->priv;
+
+	if(debuglevel > 0)
+		printk("R");
+
+	for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
+	{
+			rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
+
+			if(status & RFD_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);
+						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
+				{
+					int rstat;
+						 /* free all RBD's until RBD_LAST is set */
+					totlen = 0;
+					while(!((rstat=rbd->status) & RBD_LAST))
+					{
+						totlen += rstat & RBD_MASK;
+						if(!rstat)
+						{
+							printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
+							break;
+						}
+						rbd->status = 0;
+						rbd = (struct rbd_struct *) make32(rbd->next);
+					}
+					totlen += rstat & RBD_MASK;
+					rbd->status = 0;
+					printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
+					p->stats.rx_dropped++;
+			 }
+		}
+		else /* frame !(ok), only with 'save-bad-frames' */
+		{
+			printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
+			p->stats.rx_errors++;
+		}
+		p->rfd_top->stat_high = 0;
+		p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
+		p->rfd_top->rbd_offset = 0xffff;
+		p->rfd_last->last = 0;				/* delete RFD_SUSP	*/
+		p->rfd_last = p->rfd_top;
+		p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
+		p->scb->rfa_offset = make16(p->rfd_top);
+
+		if(debuglevel > 0)
+			printk("%d",cnt++);
+	}
+
+	if(automatic_resume)
+	{
+		WAIT_4_SCB_CMD();
+		p->scb->cmd_ruc = RUC_RESUME;
+		ni_attn586();
+		WAIT_4_SCB_CMD_RUC();
+	}
+
+#ifdef WAIT_4_BUSY
+	{
+		int i;
+		for(i=0;i<1024;i++)
+		{
+			if(p->rfd_top->status)
+				break;
+			DELAY_16();
+			if(i == 1023)
+				printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
+		}
+	}
+#endif
+
+#if 0
+	if(!at_least_one)
+	{
+		int i;
+		volatile struct rfd_struct *rfds=p->rfd_top;
+		volatile struct rbd_struct *rbds;
+		printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
+		for(i=0;i< (p->num_recv_buffs+4);i++)
+		{
+			rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
+			printk("%04x:%04x ",rfds->status,rbds->status);
+			rfds = (struct rfd_struct *) make32(rfds->next);
+		}
+		printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
+		printk("\nerrs: %04x %04x rus: %02x, cus: %02x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->rus,(int)p->scb->cus);
+	}
+	old_at_least = at_least_one;
+#endif
+
+	if(debuglevel > 0)
+		printk("r");
+}
+
+/**********************************************************
+ * handle 'Receiver went not ready'.
+ */
+
+static void ni52_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, WAIT_4_FULLSTAT?? */
+	p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
+	ni_attn586();
+	WAIT_4_SCB_CMD_RUC();		/* wait for accept cmd. */
+
+	alloc_rfa(dev,(char *)p->rfd_first);
+/* maybe add a check here, before restarting the RU */
+	startrecv586(dev); /* restart RU */
+
+	printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
+
+}
+
+/**********************************************************
+ * handle xmit - interrupt
+ */
+
+static void ni52_xmt_int(struct net_device *dev)
+{
+	int status;
+	struct priv *p = (struct priv *) dev->priv;
+
+	if(debuglevel > 0)
+		printk("X");
+
+	status = p->xmit_cmds[p->xmit_last]->cmd_status;
+	if(!(status & STAT_COMPL))
+		printk("%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("%s: late collision detected.\n",dev->name);
+			p->stats.collisions++;
+		}
+		else if(status & TCMD_NOCARRIER) {
+			p->stats.tx_carrier_errors++;
+			printk("%s: no carrier detected.\n",dev->name);
+		}
+		else if(status & TCMD_LOSTCTS)
+			printk("%s: loss of CTS detected.\n",dev->name);
+		else if(status & TCMD_UNDERRUN) {
+			p->stats.tx_fifo_errors++;
+			printk("%s: DMA underrun detected.\n",dev->name);
+		}
+		else if(status & TCMD_MAXCOLL) {
+			printk("%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;
+
+	WAIT_4_SCB_CMD();
+	WAIT_4_SCB_CMD_RUC();
+	p->scb->rfa_offset = make16(p->rfd_first);
+	p->scb->cmd_ruc = RUC_START;
+	ni_attn586();		/* start cmd. */
+	WAIT_4_SCB_CMD_RUC();	/* wait for accept cmd. (no timeout!!) */
+}
+
+static void ni52_timeout(struct net_device *dev)
+{
+	struct priv *p = (struct priv *) dev->priv;
+#ifndef NO_NOPCOMMANDS
+	if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
+	{
+		netif_wake_queue(dev);
+#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 = CUC_ABORT;
+		ni_attn586();
+		WAIT_4_SCB_CMD();
+		p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
+		p->scb->cmd_cuc = CUC_START;
+		ni_attn586();
+		WAIT_4_SCB_CMD();
+		dev->trans_start = jiffies;
+		return 0;
+	}
+#endif
+	{
+#ifdef DEBUG
+		printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
+		printk("%s: command-stats: %04x %04x\n",dev->name,p->xmit_cmds[0]->cmd_status,p->xmit_cmds[1]->cmd_status);
+		printk("%s: check, whether you set the right interrupt number!\n",dev->name);
+#endif
+		ni52_close(dev);
+		ni52_open(dev);
+	}
+	dev->trans_start = jiffies;
+}
+
+/******************************************************
+ * send frame
+ */
+
+static int ni52_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	int len,i;
+#ifndef NO_NOPCOMMANDS
+	int next_nop;
+#endif
+	struct priv *p = (struct priv *) dev->priv;
+
+	if(skb->len > XMIT_BUFF_SIZE)
+	{
+		printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
+		return 0;
+	}
+
+	netif_stop_queue(dev);
+
+#if(NUM_XMIT_BUFFS > 1)
+	if(test_and_set_bit(0,(void *) &p->lock)) {
+		printk("%s: Queue was locked\n",dev->name);
+		return 1;
+	}
+	else
+#endif
+	{
+		memcpy((char *)p->xmit_cbuffs[p->xmit_count],(char *)(skb->data),skb->len);
+		len = skb->len;
+		if (len < ETH_ZLEN) {
+			len = ETH_ZLEN;
+			memset((char *)p->xmit_cbuffs[p->xmit_count]+skb->len, 0, len - skb->len);
+		}
+
+#if (NUM_XMIT_BUFFS == 1)
+#	ifdef NO_NOPCOMMANDS
+
+#ifdef DEBUG
+		if(p->scb->cus & CU_ACTIVE)
+		{
+			printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
+			printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,p->xmit_cmds[0]->cmd_status);
+		}
+#endif
+
+		p->xmit_buffs[0]->size = TBD_LAST | len;
+		for(i=0;i<16;i++)
+		{
+			p->xmit_cmds[0]->cmd_status = 0;
+			WAIT_4_SCB_CMD();
+			if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
+				p->scb->cmd_cuc = CUC_RESUME;
+			else
+			{
+				p->scb->cbl_offset = make16(p->xmit_cmds[0]);
+				p->scb->cmd_cuc = CUC_START;
+			}
+
+			ni_attn586();
+			dev->trans_start = jiffies;
+			if(!i)
+				dev_kfree_skb(skb);
+			WAIT_4_SCB_CMD();
+			if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
+				break;
+			if(p->xmit_cmds[0]->cmd_status)
+				break;
+			if(i==15)
+				printk("%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;
+		/* linkpointer of xmit-command already points to next nop cmd */
+		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;
+
+		{
+			unsigned long flags;
+			save_flags(flags);
+			cli();
+			if(p->xmit_count != p->xmit_last)
+				netif_wake_queue(dev);
+			p->lock = 0;
+			restore_flags(flags);
+		}
+		dev_kfree_skb(skb);
+#endif
+	}
+	return 0;
+}
+
+/*******************************************
+ * Someone wanna have the statistics
+ */
+
+static struct net_device_stats *ni52_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 = 0;
+	aln = p->scb->aln_errs;
+	p->scb->aln_errs = 0;
+	rsc = p->scb->rsc_errs;
+	p->scb->rsc_errs = 0;
+	ovrn = p->scb->ovrn_errs;
+	p->scb->ovrn_errs = 0;
+
+	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 ..
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+	netif_stop_queue(dev);
+	ni_disint();
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	ni_enaint();
+	netif_wake_queue(dev);
+}
+
+#ifdef MODULE
+static struct net_device *dev_ni52;
+
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(memstart, long, 0);
+module_param(memend, long, 0);
+MODULE_PARM_DESC(io, "NI5210 I/O base address,required");
+MODULE_PARM_DESC(irq, "NI5210 IRQ number,required");
+MODULE_PARM_DESC(memstart, "NI5210 memory base address,required");
+MODULE_PARM_DESC(memend, "NI5210 memory end address,required");
+
+int init_module(void)
+{
+	if(io <= 0x0 || !memend || !memstart || irq < 2) {
+		printk("ni52: Autoprobing not allowed for modules.\nni52: Set symbols 'io' 'irq' 'memstart' and 'memend'\n");
+		return -ENODEV;
+	}
+	dev_ni52 = ni52_probe(-1);
+	if (IS_ERR(dev_ni52))
+		return PTR_ERR(dev_ni52);
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	unregister_netdev(dev_ni52);
+	release_region(dev_ni52->base_addr, NI52_TOTAL_SIZE);
+	free_netdev(dev_ni52);
+}
+#endif /* MODULE */
+
+#if 0
+/*
+ * DUMP .. we expect a not running CMD unit and enough space
+ */
+void ni52_dump(struct net_device *dev,void *ptr)
+{
+	struct priv *p = (struct priv *) dev->priv;
+	struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
+	int i;
+
+	p->scb->cmd_cuc = CUC_ABORT;
+	ni_attn586();
+	WAIT_4_SCB_CMD();
+	WAIT_4_SCB_CMD_RUC();
+
+	dump_cmd->cmd_status = 0;
+	dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
+	dump_cmd->dump_offset = make16((dump_cmd + 1));
+	dump_cmd->cmd_link = 0xffff;
+
+	p->scb->cbl_offset = make16(dump_cmd);
+	p->scb->cmd_cuc = CUC_START;
+	ni_attn586();
+	WAIT_4_STAT_COMPL(dump_cmd);
+
+	if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
+				printk("%s: Can't get dump information.\n",dev->name);
+
+	for(i=0;i<170;i++) {
+		printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
+		if(i % 24 == 23)
+			printk("\n");
+	}
+	printk("\n");
+}
+#endif
+MODULE_LICENSE("GPL");
+
+/*
+ * END: linux/drivers/net/ni52.c
+ */