Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

10 files changed, 6337 insertions, 0 deletions

diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
new file mode 100644
index 000000000..3ee89ae49
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -0,0 +1,1537 @@
+/* 82596.c: A generic 82596 ethernet driver for linux. */
+/*
+   Based on Apricot.c
+   Written 1994 by Mark Evans.
+   This driver is for the Apricot 82596 bus-master interface
+
+   Modularised 12/94 Mark Evans
+
+
+   Modified to support the 82596 ethernet chips on 680x0 VME boards.
+   by Richard Hirst <richard@sleepie.demon.co.uk>
+   Renamed to be 82596.c
+
+   980825:  Changed to receive directly in to sk_buffs which are
+   allocated at open() time.  Eliminates copy on incoming frames
+   (small ones are still copied).  Shared data now held in a
+   non-cached page, so we can run on 68060 in copyback mode.
+
+   TBD:
+   * look at deferring rx frames rather than discarding (as per tulip)
+   * handle tx ring full as per tulip
+   * performance test to tune rx_copybreak
+
+   Most of my modifications relate to the braindead big-endian
+   implementation by Intel.  When the i596 is operating in
+   'big-endian' mode, it thinks a 32 bit value of 0x12345678
+   should be stored as 0x56781234.  This is a real pain, when
+   you have linked lists which are shared by the 680x0 and the
+   i596.
+
+   Driver skeleton
+   Written 1993 by Donald Becker.
+   Copyright 1993 United States Government as represented by the Director,
+   National Security Agency. This software may only be used and distributed
+   according to the terms of the GNU General Public License as modified by SRC,
+   incorporated herein by reference.
+
+   The author may be reached as becker@scyld.com, or C/O
+   Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
+
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/gfp.h>
+#include <linux/pgtable.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/cacheflush.h>
+
+static char version[] __initdata =
+	"82596.c $Revision: 1.5 $\n";
+
+#define DRV_NAME	"82596"
+
+/* DEBUG flags
+ */
+
+#define DEB_INIT	0x0001
+#define DEB_PROBE	0x0002
+#define DEB_SERIOUS	0x0004
+#define DEB_ERRORS	0x0008
+#define DEB_MULTI	0x0010
+#define DEB_TDR		0x0020
+#define DEB_OPEN	0x0040
+#define DEB_RESET	0x0080
+#define DEB_ADDCMD	0x0100
+#define DEB_STATUS	0x0200
+#define DEB_STARTTX	0x0400
+#define DEB_RXADDR	0x0800
+#define DEB_TXADDR	0x1000
+#define DEB_RXFRAME	0x2000
+#define DEB_INTS	0x4000
+#define DEB_STRUCT	0x8000
+#define DEB_ANY		0xffff
+
+
+#define DEB(x,y)	if (i596_debug & (x)) y
+
+
+#if IS_ENABLED(CONFIG_MVME16x_NET)
+#define ENABLE_MVME16x_NET
+#endif
+#if IS_ENABLED(CONFIG_BVME6000_NET)
+#define ENABLE_BVME6000_NET
+#endif
+
+#ifdef ENABLE_MVME16x_NET
+#include <asm/mvme16xhw.h>
+#endif
+#ifdef ENABLE_BVME6000_NET
+#include <asm/bvme6000hw.h>
+#endif
+
+/*
+ * Define various macros for Channel Attention, word swapping etc., dependent
+ * on architecture.  MVME and BVME are 680x0 based, otherwise it is Intel.
+ */
+
+#ifdef __mc68000__
+#define WSWAPrfd(x)  ((struct i596_rfd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPrbd(x)  ((struct i596_rbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPiscp(x) ((struct i596_iscp *)(((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPscb(x)  ((struct i596_scb *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPcmd(x)  ((struct i596_cmd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPtbd(x)  ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define WSWAPchar(x) ((char *)            (((u32)(x)<<16) | ((((u32)(x)))>>16)))
+#define ISCP_BUSY	0x00010000
+#else
+#error 82596.c: unknown architecture
+#endif
+
+/*
+ * These were the intel versions, left here for reference. There
+ * are currently no x86 users of this legacy i82596 chip.
+ */
+#if 0
+#define WSWAPrfd(x)     ((struct i596_rfd *)((long)x))
+#define WSWAPrbd(x)     ((struct i596_rbd *)((long)x))
+#define WSWAPiscp(x)    ((struct i596_iscp *)((long)x))
+#define WSWAPscb(x)     ((struct i596_scb *)((long)x))
+#define WSWAPcmd(x)     ((struct i596_cmd *)((long)x))
+#define WSWAPtbd(x)     ((struct i596_tbd *)((long)x))
+#define WSWAPchar(x)    ((char *)((long)x))
+#define ISCP_BUSY	0x0001
+#endif
+
+/*
+ * The MPU_PORT command allows direct access to the 82596. With PORT access
+ * the following commands are available (p5-18). The 32-bit port command
+ * must be word-swapped with the most significant word written first.
+ * This only applies to VME boards.
+ */
+#define PORT_RESET		0x00	/* reset 82596 */
+#define PORT_SELFTEST		0x01	/* selftest */
+#define PORT_ALTSCP		0x02	/* alternate SCB address */
+#define PORT_ALTDUMP		0x03	/* Alternate DUMP address */
+
+static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
+
+MODULE_AUTHOR("Richard Hirst");
+MODULE_DESCRIPTION("i82596 driver");
+MODULE_LICENSE("GPL");
+
+module_param(i596_debug, int, 0);
+MODULE_PARM_DESC(i596_debug, "i82596 debug mask");
+
+
+/* Copy frames shorter than rx_copybreak, otherwise pass on up in
+ * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
+ */
+static int rx_copybreak = 100;
+
+#define PKT_BUF_SZ	1536
+#define MAX_MC_CNT	64
+
+#define I596_TOTAL_SIZE 17
+
+#define I596_NULL ((void *)0xffffffff)
+
+#define CMD_EOL		0x8000	/* The last command of the list, stop. */
+#define CMD_SUSP	0x4000	/* Suspend after doing cmd. */
+#define CMD_INTR	0x2000	/* Interrupt after doing cmd. */
+
+#define CMD_FLEX	0x0008	/* Enable flexible memory model */
+
+enum commands {
+	CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
+	CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
+};
+
+#define STAT_C		0x8000	/* Set to 0 after execution */
+#define STAT_B		0x4000	/* Command being executed */
+#define STAT_OK		0x2000	/* Command executed ok */
+#define STAT_A		0x1000	/* Command aborted */
+
+#define	 CUC_START	0x0100
+#define	 CUC_RESUME	0x0200
+#define	 CUC_SUSPEND    0x0300
+#define	 CUC_ABORT	0x0400
+#define	 RX_START	0x0010
+#define	 RX_RESUME	0x0020
+#define	 RX_SUSPEND	0x0030
+#define	 RX_ABORT	0x0040
+
+#define TX_TIMEOUT	(HZ/20)
+
+
+struct i596_reg {
+	unsigned short porthi;
+	unsigned short portlo;
+	unsigned long ca;
+};
+
+#define EOF		0x8000
+#define SIZE_MASK	0x3fff
+
+struct i596_tbd {
+	unsigned short size;
+	unsigned short pad;
+	struct i596_tbd *next;
+	char *data;
+};
+
+/* The command structure has two 'next' pointers; v_next is the address of
+ * the next command as seen by the CPU, b_next is the address of the next
+ * command as seen by the 82596.  The b_next pointer, as used by the 82596
+ * always references the status field of the next command, rather than the
+ * v_next field, because the 82596 is unaware of v_next.  It may seem more
+ * logical to put v_next at the end of the structure, but we cannot do that
+ * because the 82596 expects other fields to be there, depending on command
+ * type.
+ */
+
+struct i596_cmd {
+	struct i596_cmd *v_next;	/* Address from CPUs viewpoint */
+	unsigned short status;
+	unsigned short command;
+	struct i596_cmd *b_next;	/* Address from i596 viewpoint */
+};
+
+struct tx_cmd {
+	struct i596_cmd cmd;
+	struct i596_tbd *tbd;
+	unsigned short size;
+	unsigned short pad;
+	struct sk_buff *skb;	/* So we can free it after tx */
+};
+
+struct tdr_cmd {
+	struct i596_cmd cmd;
+	unsigned short status;
+	unsigned short pad;
+};
+
+struct mc_cmd {
+	struct i596_cmd cmd;
+	short mc_cnt;
+	char mc_addrs[MAX_MC_CNT*6];
+};
+
+struct sa_cmd {
+	struct i596_cmd cmd;
+	char eth_addr[8];
+};
+
+struct cf_cmd {
+	struct i596_cmd cmd;
+	char i596_config[16];
+};
+
+struct i596_rfd {
+	unsigned short stat;
+	unsigned short cmd;
+	struct i596_rfd *b_next;	/* Address from i596 viewpoint */
+	struct i596_rbd *rbd;
+	unsigned short count;
+	unsigned short size;
+	struct i596_rfd *v_next;	/* Address from CPUs viewpoint */
+	struct i596_rfd *v_prev;
+};
+
+struct i596_rbd {
+    unsigned short count;
+    unsigned short zero1;
+    struct i596_rbd *b_next;
+    unsigned char *b_data;		/* Address from i596 viewpoint */
+    unsigned short size;
+    unsigned short zero2;
+    struct sk_buff *skb;
+    struct i596_rbd *v_next;
+    struct i596_rbd *b_addr;		/* This rbd addr from i596 view */
+    unsigned char *v_data;		/* Address from CPUs viewpoint */
+};
+
+#define TX_RING_SIZE 64
+#define RX_RING_SIZE 16
+
+struct i596_scb {
+	unsigned short status;
+	unsigned short command;
+	struct i596_cmd *cmd;
+	struct i596_rfd *rfd;
+	unsigned long crc_err;
+	unsigned long align_err;
+	unsigned long resource_err;
+	unsigned long over_err;
+	unsigned long rcvdt_err;
+	unsigned long short_err;
+	unsigned short t_on;
+	unsigned short t_off;
+};
+
+struct i596_iscp {
+	unsigned long stat;
+	struct i596_scb *scb;
+};
+
+struct i596_scp {
+	unsigned long sysbus;
+	unsigned long pad;
+	struct i596_iscp *iscp;
+};
+
+struct i596_private {
+	volatile struct i596_scp scp;
+	volatile struct i596_iscp iscp;
+	volatile struct i596_scb scb;
+	struct sa_cmd sa_cmd;
+	struct cf_cmd cf_cmd;
+	struct tdr_cmd tdr_cmd;
+	struct mc_cmd mc_cmd;
+	unsigned long stat;
+	int last_restart __attribute__((aligned(4)));
+	struct i596_rfd *rfd_head;
+	struct i596_rbd *rbd_head;
+	struct i596_cmd *cmd_tail;
+	struct i596_cmd *cmd_head;
+	int cmd_backlog;
+	unsigned long last_cmd;
+	struct i596_rfd rfds[RX_RING_SIZE];
+	struct i596_rbd rbds[RX_RING_SIZE];
+	struct tx_cmd tx_cmds[TX_RING_SIZE];
+	struct i596_tbd tbds[TX_RING_SIZE];
+	int next_tx_cmd;
+	spinlock_t lock;
+};
+
+static char init_setup[] =
+{
+	0x8E,			/* length, prefetch on */
+	0xC8,			/* fifo to 8, monitor off */
+#ifdef CONFIG_VME
+	0xc0,			/* don't save bad frames */
+#else
+	0x80,			/* don't save bad frames */
+#endif
+	0x2E,			/* No source address insertion, 8 byte preamble */
+	0x00,			/* priority and backoff defaults */
+	0x60,			/* interframe spacing */
+	0x00,			/* slot time LSB */
+	0xf2,			/* slot time and retries */
+	0x00,			/* promiscuous mode */
+	0x00,			/* collision detect */
+	0x40,			/* minimum frame length */
+	0xff,
+	0x00,
+	0x7f /*  *multi IA */ };
+
+static int i596_open(struct net_device *dev);
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t i596_interrupt(int irq, void *dev_id);
+static int i596_close(struct net_device *dev);
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
+static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue);
+static void print_eth(unsigned char *buf, char *str);
+static void set_multicast_list(struct net_device *dev);
+
+static int rx_ring_size = RX_RING_SIZE;
+static int ticks_limit = 25;
+static int max_cmd_backlog = TX_RING_SIZE-1;
+
+
+static inline void CA(struct net_device *dev)
+{
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		((struct i596_reg *) dev->base_addr)->ca = 1;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile u32 i;
+
+		i = *(volatile u32 *) (dev->base_addr);
+	}
+#endif
+}
+
+
+static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
+{
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
+		p->porthi = ((c) | (u32) (x)) & 0xffff;
+		p->portlo = ((c) | (u32) (x)) >> 16;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		u32 v = (u32) (c) | (u32) (x);
+		v = ((u32) (v) << 16) | ((u32) (v) >> 16);
+		*(volatile u32 *) dev->base_addr = v;
+		udelay(1);
+		*(volatile u32 *) dev->base_addr = v;
+	}
+#endif
+}
+
+
+static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
+{
+	while (--delcnt && lp->iscp.stat)
+		udelay(10);
+	if (!delcnt) {
+		printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
+		     dev->name, str, lp->scb.status, lp->scb.command);
+		return -1;
+	}
+	else
+		return 0;
+}
+
+
+static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
+{
+	while (--delcnt && lp->scb.command)
+		udelay(10);
+	if (!delcnt) {
+		printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
+		     dev->name, str, lp->scb.status, lp->scb.command);
+		return -1;
+	}
+	else
+		return 0;
+}
+
+
+static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str)
+{
+	volatile struct i596_cmd *c = cmd;
+
+	while (--delcnt && c->command)
+		udelay(10);
+	if (!delcnt) {
+		printk(KERN_ERR "%s: %s.\n", dev->name, str);
+		return -1;
+	}
+	else
+		return 0;
+}
+
+
+static void i596_display_data(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	struct i596_cmd *cmd;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n",
+	       &lp->scp, lp->scp.sysbus, lp->scp.iscp);
+	printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n",
+	       &lp->iscp, lp->iscp.stat, lp->iscp.scb);
+	printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x,"
+		" .cmd = %p, .rfd = %p\n",
+	       &lp->scb, lp->scb.status, lp->scb.command,
+		lp->scb.cmd, lp->scb.rfd);
+	printk(KERN_ERR "   errors: crc %lx, align %lx, resource %lx,"
+               " over %lx, rcvdt %lx, short %lx\n",
+		lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
+		lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
+	cmd = lp->cmd_head;
+	while (cmd != I596_NULL) {
+		printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n",
+		  cmd, cmd->status, cmd->command, cmd->b_next);
+		cmd = cmd->v_next;
+	}
+	rfd = lp->rfd_head;
+	printk(KERN_ERR "rfd_head = %p\n", rfd);
+	do {
+		printk(KERN_ERR "   %p .stat %04x, .cmd %04x, b_next %p, rbd %p,"
+                        " count %04x\n",
+			rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
+			rfd->count);
+		rfd = rfd->v_next;
+	} while (rfd != lp->rfd_head);
+	rbd = lp->rbd_head;
+	printk(KERN_ERR "rbd_head = %p\n", rbd);
+	do {
+		printk(KERN_ERR "   %p .count %04x, b_next %p, b_data %p, size %04x\n",
+			rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
+		rbd = rbd->v_next;
+	} while (rbd != lp->rbd_head);
+}
+
+
+#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
+static irqreturn_t i596_error(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
+
+		pcc2[0x28] = 1;
+		pcc2[0x2b] = 0x1d;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
+
+		*ethirq = 1;
+		*ethirq = 3;
+	}
+#endif
+	printk(KERN_ERR "%s: Error interrupt\n", dev->name);
+	i596_display_data(dev);
+	return IRQ_HANDLED;
+}
+#endif
+
+static inline void remove_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	struct i596_rbd *rbd;
+	int i;
+
+	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
+		if (rbd->skb == NULL)
+			break;
+		dev_kfree_skb(rbd->skb);
+		rbd->skb = NULL;
+	}
+}
+
+static inline int init_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	int i;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	/* First build the Receive Buffer Descriptor List */
+
+	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
+		struct sk_buff *skb = netdev_alloc_skb(dev, PKT_BUF_SZ);
+
+		if (skb == NULL) {
+			remove_rx_bufs(dev);
+			return -ENOMEM;
+		}
+
+		rbd->v_next = rbd+1;
+		rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1));
+		rbd->b_addr = WSWAPrbd(virt_to_bus(rbd));
+		rbd->skb = skb;
+		rbd->v_data = skb->data;
+		rbd->b_data = WSWAPchar(virt_to_bus(skb->data));
+		rbd->size = PKT_BUF_SZ;
+#ifdef __mc68000__
+		cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ);
+#endif
+	}
+	lp->rbd_head = lp->rbds;
+	rbd = lp->rbds + rx_ring_size - 1;
+	rbd->v_next = lp->rbds;
+	rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds));
+
+	/* Now build the Receive Frame Descriptor List */
+
+	for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
+		rfd->rbd = I596_NULL;
+		rfd->v_next = rfd+1;
+		rfd->v_prev = rfd-1;
+		rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1));
+		rfd->cmd = CMD_FLEX;
+	}
+	lp->rfd_head = lp->rfds;
+	lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
+	rfd = lp->rfds;
+	rfd->rbd = lp->rbd_head;
+	rfd->v_prev = lp->rfds + rx_ring_size - 1;
+	rfd = lp->rfds + rx_ring_size - 1;
+	rfd->v_next = lp->rfds;
+	rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds));
+	rfd->cmd = CMD_EOL|CMD_FLEX;
+
+	return 0;
+}
+
+
+static void rebuild_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	int i;
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+
+	for (i = 0; i < rx_ring_size; i++) {
+		lp->rfds[i].rbd = I596_NULL;
+		lp->rfds[i].cmd = CMD_FLEX;
+	}
+	lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
+	lp->rfd_head = lp->rfds;
+	lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
+	lp->rbd_head = lp->rbds;
+	lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds));
+}
+
+
+static int init_i596_mem(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	unsigned long flags;
+
+	MPU_PORT(dev, PORT_RESET, NULL);
+
+	udelay(100);		/* Wait 100us - seems to help */
+
+#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
+
+		/* Disable all ints for now */
+		pcc2[0x28] = 1;
+		pcc2[0x2a] = 0x48;
+		/* Following disables snooping.  Snooping is not required
+		 * as we make appropriate use of non-cached pages for
+		 * shared data, and cache_push/cache_clear.
+		 */
+		pcc2[0x2b] = 0x08;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
+
+		*ethirq = 1;
+	}
+#endif
+
+	/* change the scp address */
+
+	MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp));
+
+#endif
+
+	lp->last_cmd = jiffies;
+
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x)
+		lp->scp.sysbus = 0x00000054;
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000)
+		lp->scp.sysbus = 0x0000004c;
+#endif
+
+	lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp));
+	lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb));
+	lp->iscp.stat = ISCP_BUSY;
+	lp->cmd_backlog = 0;
+
+	lp->cmd_head = lp->scb.cmd = I596_NULL;
+
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		lp->scb.t_on  = 7 * 25;
+		lp->scb.t_off = 1 * 25;
+	}
+#endif
+
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
+
+	CA(dev);
+
+	if (wait_istat(dev,lp,1000,"initialization timed out"))
+		goto failed;
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name));
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+	rebuild_rx_bufs(dev);
+	lp->scb.command = 0;
+
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
+
+		/* Enable ints, etc. now */
+		pcc2[0x2a] = 0x55;	/* Edge sensitive */
+		pcc2[0x2b] = 0x15;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
+
+		*ethirq = 3;
+	}
+#endif
+
+
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name));
+	memcpy(lp->cf_cmd.i596_config, init_setup, 14);
+	lp->cf_cmd.cmd.command = CmdConfigure;
+	i596_add_cmd(dev, &lp->cf_cmd.cmd);
+
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
+	memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, ETH_ALEN);
+	lp->sa_cmd.cmd.command = CmdSASetup;
+	i596_add_cmd(dev, &lp->sa_cmd.cmd);
+
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
+	lp->tdr_cmd.cmd.command = CmdTDR;
+	i596_add_cmd(dev, &lp->tdr_cmd.cmd);
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) {
+		spin_unlock_irqrestore (&lp->lock, flags);
+		goto failed;
+	}
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
+	lp->scb.command = RX_START;
+	CA(dev);
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	if (wait_cmd(dev,lp,1000,"RX_START not processed"))
+		goto failed;
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name));
+	return 0;
+
+failed:
+	printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name);
+	MPU_PORT(dev, PORT_RESET, NULL);
+	return -1;
+}
+
+static inline int i596_rx(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+	int frames = 0;
+
+	DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n",
+			lp->rfd_head, lp->rbd_head));
+
+	rfd = lp->rfd_head;		/* Ref next frame to check */
+
+	while ((rfd->stat) & STAT_C) {	/* Loop while complete frames */
+		if (rfd->rbd == I596_NULL)
+			rbd = I596_NULL;
+		else if (rfd->rbd == lp->rbd_head->b_addr)
+			rbd = lp->rbd_head;
+		else {
+			printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name);
+			/* XXX Now what? */
+			rbd = I596_NULL;
+		}
+		DEB(DEB_RXFRAME, printk(KERN_DEBUG "  rfd %p, rfd.rbd %p, rfd.stat %04x\n",
+			rfd, rfd->rbd, rfd->stat));
+
+		if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) {
+			/* a good frame */
+			int pkt_len = rbd->count & 0x3fff;
+			struct sk_buff *skb = rbd->skb;
+			int rx_in_place = 0;
+
+			DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
+			frames++;
+
+			/* Check if the packet is long enough to just accept
+			 * without copying to a properly sized skbuff.
+			 */
+
+			if (pkt_len > rx_copybreak) {
+				struct sk_buff *newskb;
+
+				/* Get fresh skbuff to replace filled one. */
+				newskb = netdev_alloc_skb(dev, PKT_BUF_SZ);
+				if (newskb == NULL) {
+					skb = NULL;	/* drop pkt */
+					goto memory_squeeze;
+				}
+				/* Pass up the skb already on the Rx ring. */
+				skb_put(skb, pkt_len);
+				rx_in_place = 1;
+				rbd->skb = newskb;
+				rbd->v_data = newskb->data;
+				rbd->b_data = WSWAPchar(virt_to_bus(newskb->data));
+#ifdef __mc68000__
+				cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ);
+#endif
+			} else {
+				skb = netdev_alloc_skb(dev, pkt_len + 2);
+			}
+memory_squeeze:
+			if (skb == NULL) {
+				/* XXX tulip.c can defer packets here!! */
+				dev->stats.rx_dropped++;
+			} else {
+				if (!rx_in_place) {
+					/* 16 byte align the data fields */
+					skb_reserve(skb, 2);
+					skb_put_data(skb, rbd->v_data,
+						     pkt_len);
+				}
+				skb->protocol=eth_type_trans(skb,dev);
+				skb->len = pkt_len;
+#ifdef __mc68000__
+				cache_clear(virt_to_phys(rbd->skb->data),
+						pkt_len);
+#endif
+				netif_rx(skb);
+				dev->stats.rx_packets++;
+				dev->stats.rx_bytes+=pkt_len;
+			}
+		}
+		else {
+			DEB(DEB_ERRORS, printk(KERN_DEBUG "%s: Error, rfd.stat = 0x%04x\n",
+					dev->name, rfd->stat));
+			dev->stats.rx_errors++;
+			if ((rfd->stat) & 0x0001)
+				dev->stats.collisions++;
+			if ((rfd->stat) & 0x0080)
+				dev->stats.rx_length_errors++;
+			if ((rfd->stat) & 0x0100)
+				dev->stats.rx_over_errors++;
+			if ((rfd->stat) & 0x0200)
+				dev->stats.rx_fifo_errors++;
+			if ((rfd->stat) & 0x0400)
+				dev->stats.rx_frame_errors++;
+			if ((rfd->stat) & 0x0800)
+				dev->stats.rx_crc_errors++;
+			if ((rfd->stat) & 0x1000)
+				dev->stats.rx_length_errors++;
+		}
+
+		/* Clear the buffer descriptor count and EOF + F flags */
+
+		if (rbd != I596_NULL && (rbd->count & 0x4000)) {
+			rbd->count = 0;
+			lp->rbd_head = rbd->v_next;
+		}
+
+		/* Tidy the frame descriptor, marking it as end of list */
+
+		rfd->rbd = I596_NULL;
+		rfd->stat = 0;
+		rfd->cmd = CMD_EOL|CMD_FLEX;
+		rfd->count = 0;
+
+		/* Remove end-of-list from old end descriptor */
+
+		rfd->v_prev->cmd = CMD_FLEX;
+
+		/* Update record of next frame descriptor to process */
+
+		lp->scb.rfd = rfd->b_next;
+		lp->rfd_head = rfd->v_next;
+		rfd = lp->rfd_head;
+	}
+
+	DEB(DEB_RXFRAME,printk(KERN_DEBUG "frames %d\n", frames));
+
+	return 0;
+}
+
+
+static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
+{
+	struct i596_cmd *ptr;
+
+	while (lp->cmd_head != I596_NULL) {
+		ptr = lp->cmd_head;
+		lp->cmd_head = ptr->v_next;
+		lp->cmd_backlog--;
+
+		switch ((ptr->command) & 0x7) {
+		case CmdTx:
+			{
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+
+				dev_kfree_skb(skb);
+
+				dev->stats.tx_errors++;
+				dev->stats.tx_aborted_errors++;
+
+				ptr->v_next = ptr->b_next = I596_NULL;
+				tx_cmd->cmd.command = 0;  /* Mark as free */
+				break;
+			}
+		default:
+			ptr->v_next = ptr->b_next = I596_NULL;
+		}
+	}
+
+	wait_cmd(dev,lp,100,"i596_cleanup_cmd timed out");
+	lp->scb.cmd = I596_NULL;
+}
+
+static void i596_reset(struct net_device *dev, struct i596_private *lp,
+			int ioaddr)
+{
+	unsigned long flags;
+
+	DEB(DEB_RESET,printk(KERN_DEBUG "i596_reset\n"));
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	wait_cmd(dev,lp,100,"i596_reset timed out");
+
+	netif_stop_queue(dev);
+
+	lp->scb.command = CUC_ABORT | RX_ABORT;
+	CA(dev);
+
+	/* wait for shutdown */
+	wait_cmd(dev,lp,1000,"i596_reset 2 timed out");
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	i596_cleanup_cmd(dev,lp);
+	i596_rx(dev);
+
+	netif_start_queue(dev);
+	init_i596_mem(dev);
+}
+
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
+{
+	struct i596_private *lp = dev->ml_priv;
+	int ioaddr = dev->base_addr;
+	unsigned long flags;
+
+	DEB(DEB_ADDCMD,printk(KERN_DEBUG "i596_add_cmd\n"));
+
+	cmd->status = 0;
+	cmd->command |= (CMD_EOL | CMD_INTR);
+	cmd->v_next = cmd->b_next = I596_NULL;
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (lp->cmd_head != I596_NULL) {
+		lp->cmd_tail->v_next = cmd;
+		lp->cmd_tail->b_next = WSWAPcmd(virt_to_bus(&cmd->status));
+	} else {
+		lp->cmd_head = cmd;
+		wait_cmd(dev,lp,100,"i596_add_cmd timed out");
+		lp->scb.cmd = WSWAPcmd(virt_to_bus(&cmd->status));
+		lp->scb.command = CUC_START;
+		CA(dev);
+	}
+	lp->cmd_tail = cmd;
+	lp->cmd_backlog++;
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	if (lp->cmd_backlog > max_cmd_backlog) {
+		unsigned long tickssofar = jiffies - lp->last_cmd;
+
+		if (tickssofar < ticks_limit)
+			return;
+
+		printk(KERN_NOTICE "%s: command unit timed out, status resetting.\n", dev->name);
+
+		i596_reset(dev, lp, ioaddr);
+	}
+}
+
+static int i596_open(struct net_device *dev)
+{
+	int res = 0;
+
+	DEB(DEB_OPEN,printk(KERN_DEBUG "%s: i596_open() irq %d.\n", dev->name, dev->irq));
+
+	if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) {
+		printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
+		return -EAGAIN;
+	}
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		if (request_irq(0x56, i596_error, 0, "i82596_error", dev)) {
+			res = -EAGAIN;
+			goto err_irq_dev;
+		}
+	}
+#endif
+	res = init_rx_bufs(dev);
+	if (res)
+		goto err_irq_56;
+
+	netif_start_queue(dev);
+
+	if (init_i596_mem(dev)) {
+		res = -EAGAIN;
+		goto err_queue;
+	}
+
+	return 0;
+
+err_queue:
+	netif_stop_queue(dev);
+	remove_rx_bufs(dev);
+err_irq_56:
+#ifdef ENABLE_MVME16x_NET
+	free_irq(0x56, dev);
+err_irq_dev:
+#endif
+	free_irq(dev->irq, dev);
+
+	return res;
+}
+
+static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue)
+{
+	struct i596_private *lp = dev->ml_priv;
+	int ioaddr = dev->base_addr;
+
+	/* Transmitter timeout, serious problems. */
+	DEB(DEB_ERRORS,printk(KERN_ERR "%s: transmit timed out, status resetting.\n",
+			dev->name));
+
+	dev->stats.tx_errors++;
+
+	/* Try to restart the adaptor */
+	if (lp->last_restart == dev->stats.tx_packets) {
+		DEB(DEB_ERRORS,printk(KERN_ERR "Resetting board.\n"));
+		/* Shutdown and restart */
+		i596_reset (dev, lp, ioaddr);
+	} else {
+		/* Issue a channel attention signal */
+		DEB(DEB_ERRORS,printk(KERN_ERR "Kicking board.\n"));
+		lp->scb.command = CUC_START | RX_START;
+		CA (dev);
+		lp->last_restart = dev->stats.tx_packets;
+	}
+
+	netif_trans_update(dev); /* prevent tx timeout */
+	netif_wake_queue (dev);
+}
+
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	struct tx_cmd *tx_cmd;
+	struct i596_tbd *tbd;
+	short length = skb->len;
+
+	DEB(DEB_STARTTX,printk(KERN_DEBUG "%s: i596_start_xmit(%x,%p) called\n",
+				dev->name, skb->len, skb->data));
+
+	if (skb->len < ETH_ZLEN) {
+		if (skb_padto(skb, ETH_ZLEN))
+			return NETDEV_TX_OK;
+		length = ETH_ZLEN;
+	}
+	netif_stop_queue(dev);
+
+	tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
+	tbd = lp->tbds + lp->next_tx_cmd;
+
+	if (tx_cmd->cmd.command) {
+		printk(KERN_NOTICE "%s: xmit ring full, dropping packet.\n",
+				dev->name);
+		dev->stats.tx_dropped++;
+
+		dev_kfree_skb(skb);
+	} else {
+		if (++lp->next_tx_cmd == TX_RING_SIZE)
+			lp->next_tx_cmd = 0;
+		tx_cmd->tbd = WSWAPtbd(virt_to_bus(tbd));
+		tbd->next = I596_NULL;
+
+		tx_cmd->cmd.command = CMD_FLEX | CmdTx;
+		tx_cmd->skb = skb;
+
+		tx_cmd->pad = 0;
+		tx_cmd->size = 0;
+		tbd->pad = 0;
+		tbd->size = EOF | length;
+
+		tbd->data = WSWAPchar(virt_to_bus(skb->data));
+
+#ifdef __mc68000__
+		cache_push(virt_to_phys(skb->data), length);
+#endif
+		DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
+		i596_add_cmd(dev, &tx_cmd->cmd);
+
+		dev->stats.tx_packets++;
+		dev->stats.tx_bytes += length;
+	}
+
+	netif_start_queue(dev);
+
+	return NETDEV_TX_OK;
+}
+
+static void print_eth(unsigned char *add, char *str)
+{
+	printk(KERN_DEBUG "i596 0x%p, %pM --> %pM %02X%02X, %s\n",
+	       add, add + 6, add, add[12], add[13], str);
+}
+
+static const struct net_device_ops i596_netdev_ops = {
+	.ndo_open 		= i596_open,
+	.ndo_stop		= i596_close,
+	.ndo_start_xmit		= i596_start_xmit,
+	.ndo_set_rx_mode	= set_multicast_list,
+	.ndo_tx_timeout		= i596_tx_timeout,
+	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
+static struct net_device * __init i82596_probe(void)
+{
+	struct net_device *dev;
+	int i;
+	struct i596_private *lp;
+	char eth_addr[8];
+	static int probed;
+	int err;
+
+	if (probed)
+		return ERR_PTR(-ENODEV);
+	probed++;
+
+	dev = alloc_etherdev(0);
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		if (mvme16x_config & MVME16x_CONFIG_NO_ETHERNET) {
+			printk(KERN_NOTICE "Ethernet probe disabled - chip not present\n");
+			err = -ENODEV;
+			goto out;
+		}
+		memcpy(eth_addr, absolute_pointer(0xfffc1f2c), ETH_ALEN); /* YUCK! Get addr from NOVRAM */
+		dev->base_addr = MVME_I596_BASE;
+		dev->irq = (unsigned) MVME16x_IRQ_I596;
+		goto found;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *rtc = (unsigned char *) BVME_RTC_BASE;
+		unsigned char msr = rtc[3];
+		int i;
+
+		rtc[3] |= 0x80;
+		for (i = 0; i < 6; i++)
+			eth_addr[i] = rtc[i * 4 + 7];	/* Stored in RTC RAM at offset 1 */
+		rtc[3] = msr;
+		dev->base_addr = BVME_I596_BASE;
+		dev->irq = (unsigned) BVME_IRQ_I596;
+		goto found;
+	}
+#endif
+	err = -ENODEV;
+	goto out;
+
+found:
+	dev->mem_start = (int)__get_free_pages(GFP_ATOMIC, 0);
+	if (!dev->mem_start) {
+		err = -ENOMEM;
+		goto out1;
+	}
+
+	DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
+
+	for (i = 0; i < 6; i++)
+		DEB(DEB_PROBE,printk(" %2.2X", eth_addr[i]));
+	eth_hw_addr_set(dev, eth_addr);
+
+	DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq));
+
+	DEB(DEB_PROBE,printk(KERN_INFO "%s", version));
+
+	/* The 82596-specific entries in the device structure. */
+	dev->netdev_ops = &i596_netdev_ops;
+	dev->watchdog_timeo = TX_TIMEOUT;
+
+	dev->ml_priv = (void *)(dev->mem_start);
+
+	lp = dev->ml_priv;
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: lp at 0x%08lx (%zd bytes), "
+			"lp->scb at 0x%08lx\n",
+			dev->name, (unsigned long)lp,
+			sizeof(struct i596_private), (unsigned long)&lp->scb));
+	memset((void *) lp, 0, sizeof(struct i596_private));
+
+#ifdef __mc68000__
+	cache_push(virt_to_phys((void *)(dev->mem_start)), 4096);
+	cache_clear(virt_to_phys((void *)(dev->mem_start)), 4096);
+	kernel_set_cachemode((void *)(dev->mem_start), 4096, IOMAP_NOCACHE_SER);
+#endif
+	lp->scb.command = 0;
+	lp->scb.cmd = I596_NULL;
+	lp->scb.rfd = I596_NULL;
+	spin_lock_init(&lp->lock);
+
+	err = register_netdev(dev);
+	if (err)
+		goto out2;
+	return dev;
+out2:
+#ifdef __mc68000__
+	/* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
+	 * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
+	 */
+	kernel_set_cachemode((void *)(dev->mem_start), 4096,
+			IOMAP_FULL_CACHING);
+#endif
+	free_page ((u32)(dev->mem_start));
+out1:
+out:
+	free_netdev(dev);
+	return ERR_PTR(err);
+}
+
+static irqreturn_t i596_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct i596_private *lp;
+	short ioaddr;
+	unsigned short status, ack_cmd = 0;
+	int handled = 0;
+
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		if (*(char *) BVME_LOCAL_IRQ_STAT & BVME_ETHERR) {
+			i596_error(irq, dev_id);
+			return IRQ_HANDLED;
+		}
+	}
+#endif
+	if (dev == NULL) {
+		printk(KERN_ERR "i596_interrupt(): irq %d for unknown device.\n", irq);
+		return IRQ_NONE;
+	}
+
+	ioaddr = dev->base_addr;
+	lp = dev->ml_priv;
+
+	spin_lock (&lp->lock);
+
+	wait_cmd(dev,lp,100,"i596 interrupt, timeout");
+	status = lp->scb.status;
+
+	DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
+			dev->name, irq, status));
+
+	ack_cmd = status & 0xf000;
+
+	if ((status & 0x8000) || (status & 0x2000)) {
+		struct i596_cmd *ptr;
+
+		handled = 1;
+		if ((status & 0x8000))
+			DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt completed command.\n", dev->name));
+		if ((status & 0x2000))
+			DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
+
+		while ((lp->cmd_head != I596_NULL) && (lp->cmd_head->status & STAT_C)) {
+			ptr = lp->cmd_head;
+
+			DEB(DEB_STATUS,printk(KERN_DEBUG "cmd_head->status = %04x, ->command = %04x\n",
+				       lp->cmd_head->status, lp->cmd_head->command));
+			lp->cmd_head = ptr->v_next;
+			lp->cmd_backlog--;
+
+			switch ((ptr->command) & 0x7) {
+			case CmdTx:
+			    {
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+
+				if ((ptr->status) & STAT_OK) {
+					DEB(DEB_TXADDR,print_eth(skb->data, "tx-done"));
+				} else {
+					dev->stats.tx_errors++;
+					if ((ptr->status) & 0x0020)
+						dev->stats.collisions++;
+					if (!((ptr->status) & 0x0040))
+						dev->stats.tx_heartbeat_errors++;
+					if ((ptr->status) & 0x0400)
+						dev->stats.tx_carrier_errors++;
+					if ((ptr->status) & 0x0800)
+						dev->stats.collisions++;
+					if ((ptr->status) & 0x1000)
+						dev->stats.tx_aborted_errors++;
+				}
+
+				dev_consume_skb_irq(skb);
+
+				tx_cmd->cmd.command = 0; /* Mark free */
+				break;
+			    }
+			case CmdTDR:
+			    {
+				unsigned short status = ((struct tdr_cmd *)ptr)->status;
+
+				if (status & 0x8000) {
+					DEB(DEB_TDR,printk(KERN_INFO "%s: link ok.\n", dev->name));
+				} else {
+					if (status & 0x4000)
+						printk(KERN_ERR "%s: Transceiver problem.\n", dev->name);
+					if (status & 0x2000)
+						printk(KERN_ERR "%s: Termination problem.\n", dev->name);
+					if (status & 0x1000)
+						printk(KERN_ERR "%s: Short circuit.\n", dev->name);
+
+					DEB(DEB_TDR,printk(KERN_INFO "%s: Time %d.\n", dev->name, status & 0x07ff));
+				}
+				break;
+			    }
+			case CmdConfigure:
+			case CmdMulticastList:
+				/* Zap command so set_multicast_list() knows it is free */
+				ptr->command = 0;
+				break;
+			}
+			ptr->v_next = ptr->b_next = I596_NULL;
+			lp->last_cmd = jiffies;
+		}
+
+		ptr = lp->cmd_head;
+		while ((ptr != I596_NULL) && (ptr != lp->cmd_tail)) {
+			ptr->command &= 0x1fff;
+			ptr = ptr->v_next;
+		}
+
+		if ((lp->cmd_head != I596_NULL))
+			ack_cmd |= CUC_START;
+		lp->scb.cmd = WSWAPcmd(virt_to_bus(&lp->cmd_head->status));
+	}
+	if ((status & 0x1000) || (status & 0x4000)) {
+		if ((status & 0x4000))
+			DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt received a frame.\n", dev->name));
+		i596_rx(dev);
+		/* Only RX_START if stopped - RGH 07-07-96 */
+		if (status & 0x1000) {
+			if (netif_running(dev)) {
+				DEB(DEB_ERRORS,printk(KERN_ERR "%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
+				ack_cmd |= RX_START;
+				dev->stats.rx_errors++;
+				dev->stats.rx_fifo_errors++;
+				rebuild_rx_bufs(dev);
+			}
+		}
+	}
+	wait_cmd(dev,lp,100,"i596 interrupt, timeout");
+	lp->scb.command = ack_cmd;
+
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		/* Ack the interrupt */
+
+		volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
+
+		pcc2[0x2a] |= 0x08;
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
+
+		*ethirq = 1;
+		*ethirq = 3;
+	}
+#endif
+	CA(dev);
+
+	DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name));
+
+	spin_unlock (&lp->lock);
+	return IRQ_RETVAL(handled);
+}
+
+static int i596_close(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	unsigned long flags;
+
+	netif_stop_queue(dev);
+
+	DEB(DEB_INIT,printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n",
+		       dev->name, lp->scb.status));
+
+	spin_lock_irqsave(&lp->lock, flags);
+
+	wait_cmd(dev,lp,100,"close1 timed out");
+	lp->scb.command = CUC_ABORT | RX_ABORT;
+	CA(dev);
+
+	wait_cmd(dev,lp,100,"close2 timed out");
+
+	spin_unlock_irqrestore(&lp->lock, flags);
+	DEB(DEB_STRUCT,i596_display_data(dev));
+	i596_cleanup_cmd(dev,lp);
+
+#ifdef ENABLE_MVME16x_NET
+	if (MACH_IS_MVME16x) {
+		volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
+
+		/* Disable all ints */
+		pcc2[0x28] = 1;
+		pcc2[0x2a] = 0x40;
+		pcc2[0x2b] = 0x40;	/* Set snooping bits now! */
+	}
+#endif
+#ifdef ENABLE_BVME6000_NET
+	if (MACH_IS_BVME6000) {
+		volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
+
+		*ethirq = 1;
+	}
+#endif
+
+#ifdef ENABLE_MVME16x_NET
+	free_irq(0x56, dev);
+#endif
+	free_irq(dev->irq, dev);
+	remove_rx_bufs(dev);
+
+	return 0;
+}
+
+/*
+ *    Set or clear the multicast filter for this adaptor.
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct i596_private *lp = dev->ml_priv;
+	int config = 0, cnt;
+
+	DEB(DEB_MULTI,printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
+		dev->name, netdev_mc_count(dev),
+		dev->flags & IFF_PROMISC  ? "ON" : "OFF",
+		dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
+
+	if (wait_cfg(dev, &lp->cf_cmd.cmd, 1000, "config change request timed out"))
+		return;
+
+	if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
+		lp->cf_cmd.i596_config[8] |= 0x01;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
+		lp->cf_cmd.i596_config[8] &= ~0x01;
+		config = 1;
+	}
+	if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
+		lp->cf_cmd.i596_config[11] &= ~0x20;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
+		lp->cf_cmd.i596_config[11] |= 0x20;
+		config = 1;
+	}
+	if (config) {
+		lp->cf_cmd.cmd.command = CmdConfigure;
+		i596_add_cmd(dev, &lp->cf_cmd.cmd);
+	}
+
+	cnt = netdev_mc_count(dev);
+	if (cnt > MAX_MC_CNT)
+	{
+		cnt = MAX_MC_CNT;
+		printk(KERN_ERR "%s: Only %d multicast addresses supported",
+			dev->name, cnt);
+	}
+
+	if (!netdev_mc_empty(dev)) {
+		struct netdev_hw_addr *ha;
+		unsigned char *cp;
+		struct mc_cmd *cmd;
+
+		if (wait_cfg(dev, &lp->mc_cmd.cmd, 1000, "multicast list change request timed out"))
+			return;
+		cmd = &lp->mc_cmd;
+		cmd->cmd.command = CmdMulticastList;
+		cmd->mc_cnt = cnt * ETH_ALEN;
+		cp = cmd->mc_addrs;
+		netdev_for_each_mc_addr(ha, dev) {
+			if (!cnt--)
+				break;
+			memcpy(cp, ha->addr, ETH_ALEN);
+			if (i596_debug > 1)
+				DEB(DEB_MULTI,printk(KERN_INFO "%s: Adding address %pM\n",
+						dev->name, cp));
+			cp += ETH_ALEN;
+		}
+		i596_add_cmd(dev, &cmd->cmd);
+	}
+}
+
+static struct net_device *dev_82596;
+
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "i82596 debug mask");
+
+static int __init i82596_init(void)
+{
+	if (debug >= 0)
+		i596_debug = debug;
+	dev_82596 = i82596_probe();
+	return PTR_ERR_OR_ZERO(dev_82596);
+}
+module_init(i82596_init);
+
+static void __exit i82596_cleanup(void)
+{
+	unregister_netdev(dev_82596);
+#ifdef __mc68000__
+	/* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
+	 * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
+	 */
+
+	kernel_set_cachemode((void *)(dev_82596->mem_start), 4096,
+			IOMAP_FULL_CACHING);
+#endif
+	free_page ((u32)(dev_82596->mem_start));
+	free_netdev(dev_82596);
+}
+module_exit(i82596_cleanup);
diff --git a/drivers/net/ethernet/i825xx/Kconfig b/drivers/net/ethernet/i825xx/Kconfig
new file mode 100644
index 000000000..3b5fab123
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/Kconfig
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Intel 82596/82593/82596 network device configuration
+#
+
+config NET_VENDOR_I825XX
+	bool "Intel (82586/82593/82596) devices"
+	default y
+	depends on NET_VENDOR_INTEL
+	help
+	  If you have a network (Ethernet) card belonging to this class, say Y.
+
+	  Note that the answer to this question does not directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about these devices. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_I825XX
+
+config ARM_ETHER1
+	tristate "Acorn Ether1 support"
+	depends on ARM && ARCH_ACORN
+	help
+	  If you have an Acorn system with one of these (AKA25) network cards,
+	  you should say Y to this option if you wish to use it with Linux.
+
+config BVME6000_NET
+	tristate "BVME6000 Ethernet support"
+	depends on BVME6000
+	help
+	  This is the driver for the Ethernet interface on BVME4000 and
+	  BVME6000 VME boards.  Say Y here to include the driver for this chip
+	  in your kernel.
+	  To compile this driver as a module, choose M here.
+
+config LASI_82596
+	tristate "Lasi ethernet"
+	depends on GSC
+	help
+	  Say Y here to support the builtin Intel 82596 ethernet controller
+	  found in Hewlett-Packard PA-RISC machines with 10Mbit ethernet.
+
+config MVME16x_NET
+	tristate "MVME16x Ethernet support"
+	depends on MVME16x
+	help
+	  This is the driver for the Ethernet interface on the Motorola
+	  MVME162, 166, 167, 172 and 177 boards.  Say Y here to include the
+	  driver for this chip in your kernel.
+	  To compile this driver as a module, choose M here.
+
+config SNI_82596
+	tristate "SNI RM ethernet"
+	depends on SNI_RM
+	help
+	  Say Y here to support the on-board Intel 82596 ethernet controller
+	  built into SNI RM machines.
+
+config SUN3_82586
+	bool "Sun3 on-board Intel 82586 support"
+	depends on SUN3
+	help
+	  This driver enables support for the on-board Intel 82586 based
+	  Ethernet adapter found on Sun 3/1xx and 3/2xx motherboards.  Note
+	  that this driver does not support 82586-based adapters on additional
+	  VME boards.
+
+endif # NET_VENDOR_I825XX
diff --git a/drivers/net/ethernet/i825xx/Makefile b/drivers/net/ethernet/i825xx/Makefile
new file mode 100644
index 000000000..422a19a5d
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Intel 82586/82593/82596 chipset device drivers.
+#
+
+obj-$(CONFIG_ARM_ETHER1) += ether1.o
+obj-$(CONFIG_SUN3_82586) += sun3_82586.o
+obj-$(CONFIG_LASI_82596) += lasi_82596.o
+obj-$(CONFIG_SNI_82596) += sni_82596.o
+obj-$(CONFIG_MVME16x_NET) += 82596.o
+obj-$(CONFIG_BVME6000_NET) += 82596.o
diff --git a/drivers/net/ethernet/i825xx/ether1.c b/drivers/net/ethernet/i825xx/ether1.c
new file mode 100644
index 000000000..3e7d7c4ba
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/ether1.c
@@ -0,0 +1,1086 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/drivers/acorn/net/ether1.c
+ *
+ *  Copyright (C) 1996-2000 Russell King
+ *
+ *  Acorn ether1 driver (82586 chip) for Acorn machines
+ *
+ * We basically keep two queues in the cards memory - one for transmit
+ * and one for receive.  Each has a head and a tail.  The head is where
+ * we/the chip adds packets to be transmitted/received, and the tail
+ * is where the transmitter has got to/where the receiver will stop.
+ * Both of these queues are circular, and since the chip is running
+ * all the time, we have to be careful when we modify the pointers etc
+ * so that the buffer memory contents is valid all the time.
+ *
+ * Change log:
+ * 1.00	RMK			Released
+ * 1.01	RMK	19/03/1996	Transfers the last odd byte onto/off of the card now.
+ * 1.02	RMK	25/05/1997	Added code to restart RU if it goes not ready
+ * 1.03	RMK	14/09/1997	Cleaned up the handling of a reset during the TX interrupt.
+ *				Should prevent lockup.
+ * 1.04 RMK	17/09/1997	Added more info when initialisation of chip goes wrong.
+ *				TDR now only reports failure when chip reports non-zero
+ *				TDR time-distance.
+ * 1.05	RMK	31/12/1997	Removed calls to dev_tint for 2.1
+ * 1.06	RMK	10/02/2000	Updated for 2.3.43
+ * 1.07	RMK	13/05/2000	Updated for 2.3.99-pre8
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/ecard.h>
+
+#define __ETHER1_C
+#include "ether1.h"
+
+static unsigned int net_debug = NET_DEBUG;
+
+#define BUFFER_SIZE	0x10000
+#define TX_AREA_START	0x00100
+#define TX_AREA_END	0x05000
+#define RX_AREA_START	0x05000
+#define RX_AREA_END	0x0fc00
+
+static int ether1_open(struct net_device *dev);
+static netdev_tx_t ether1_sendpacket(struct sk_buff *skb,
+				     struct net_device *dev);
+static irqreturn_t ether1_interrupt(int irq, void *dev_id);
+static int ether1_close(struct net_device *dev);
+static void ether1_setmulticastlist(struct net_device *dev);
+static void ether1_timeout(struct net_device *dev, unsigned int txqueue);
+
+/* ------------------------------------------------------------------------- */
+
+static char version[] = "ether1 ethernet driver (c) 2000 Russell King v1.07\n";
+
+#define BUS_16 16
+#define BUS_8  8
+
+/* ------------------------------------------------------------------------- */
+
+#define DISABLEIRQS 1
+#define NORMALIRQS  0
+
+#define ether1_readw(dev, addr, type, offset, svflgs) ether1_inw_p (dev, addr + (int)(&((type *)0)->offset), svflgs)
+#define ether1_writew(dev, val, addr, type, offset, svflgs) ether1_outw_p (dev, val, addr + (int)(&((type *)0)->offset), svflgs)
+
+static inline unsigned short
+ether1_inw_p (struct net_device *dev, int addr, int svflgs)
+{
+	unsigned long flags;
+	unsigned short ret;
+
+	if (svflgs)
+		local_irq_save (flags);
+
+	writeb(addr >> 12, REG_PAGE);
+	ret = readw(ETHER1_RAM + ((addr & 4095) << 1));
+	if (svflgs)
+		local_irq_restore (flags);
+	return ret;
+}
+
+static inline void
+ether1_outw_p (struct net_device *dev, unsigned short val, int addr, int svflgs)
+{
+	unsigned long flags;
+
+	if (svflgs)
+		local_irq_save (flags);
+
+	writeb(addr >> 12, REG_PAGE);
+	writew(val, ETHER1_RAM + ((addr & 4095) << 1));
+	if (svflgs)
+		local_irq_restore (flags);
+}
+
+/*
+ * Some inline assembler to allow fast transfers on to/off of the card.
+ * Since this driver depends on some features presented by the ARM
+ * specific architecture, and that you can't configure this driver
+ * without specifying ARM mode, this is not a problem.
+ *
+ * This routine is essentially an optimised memcpy from the card's
+ * onboard RAM to kernel memory.
+ */
+static void
+ether1_writebuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
+{
+	unsigned int page, thislen, offset;
+	void __iomem *addr;
+
+	offset = start & 4095;
+	page = start >> 12;
+	addr = ETHER1_RAM + (offset << 1);
+
+	if (offset + length > 4096)
+		thislen = 4096 - offset;
+	else
+		thislen = length;
+
+	do {
+		int used;
+
+		writeb(page, REG_PAGE);
+		length -= thislen;
+
+		__asm__ __volatile__(
+	"subs	%3, %3, #2\n\
+	bmi	2f\n\
+1:	ldr	%0, [%1], #2\n\
+	mov	%0, %0, lsl #16\n\
+	orr	%0, %0, %0, lsr #16\n\
+	str	%0, [%2], #4\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%1], #2\n\
+	mov	%0, %0, lsl #16\n\
+	orr	%0, %0, %0, lsr #16\n\
+	str	%0, [%2], #4\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%1], #2\n\
+	mov	%0, %0, lsl #16\n\
+	orr	%0, %0, %0, lsr #16\n\
+	str	%0, [%2], #4\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%1], #2\n\
+	mov	%0, %0, lsl #16\n\
+	orr	%0, %0, %0, lsr #16\n\
+	str	%0, [%2], #4\n\
+	subs	%3, %3, #2\n\
+	bpl	1b\n\
+2:	adds	%3, %3, #1\n\
+	ldreqb	%0, [%1]\n\
+	streqb	%0, [%2]"
+		: "=&r" (used), "=&r" (data)
+		: "r"  (addr), "r" (thislen), "1" (data));
+
+		addr = ETHER1_RAM;
+
+		thislen = length;
+		if (thislen > 4096)
+			thislen = 4096;
+		page++;
+	} while (thislen);
+}
+
+static void
+ether1_readbuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
+{
+	unsigned int page, thislen, offset;
+	void __iomem *addr;
+
+	offset = start & 4095;
+	page = start >> 12;
+	addr = ETHER1_RAM + (offset << 1);
+
+	if (offset + length > 4096)
+		thislen = 4096 - offset;
+	else
+		thislen = length;
+
+	do {
+		int used;
+
+		writeb(page, REG_PAGE);
+		length -= thislen;
+
+		__asm__ __volatile__(
+	"subs	%3, %3, #2\n\
+	bmi	2f\n\
+1:	ldr	%0, [%2], #4\n\
+	strb	%0, [%1], #1\n\
+	mov	%0, %0, lsr #8\n\
+	strb	%0, [%1], #1\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%2], #4\n\
+	strb	%0, [%1], #1\n\
+	mov	%0, %0, lsr #8\n\
+	strb	%0, [%1], #1\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%2], #4\n\
+	strb	%0, [%1], #1\n\
+	mov	%0, %0, lsr #8\n\
+	strb	%0, [%1], #1\n\
+	subs	%3, %3, #2\n\
+	bmi	2f\n\
+	ldr	%0, [%2], #4\n\
+	strb	%0, [%1], #1\n\
+	mov	%0, %0, lsr #8\n\
+	strb	%0, [%1], #1\n\
+	subs	%3, %3, #2\n\
+	bpl	1b\n\
+2:	adds	%3, %3, #1\n\
+	ldreqb	%0, [%2]\n\
+	streqb	%0, [%1]"
+		: "=&r" (used), "=&r" (data)
+		: "r"  (addr), "r" (thislen), "1" (data));
+
+		addr = ETHER1_RAM;
+
+		thislen = length;
+		if (thislen > 4096)
+			thislen = 4096;
+		page++;
+	} while (thislen);
+}
+
+static int
+ether1_ramtest(struct net_device *dev, unsigned char byte)
+{
+	unsigned char *buffer = kmalloc (BUFFER_SIZE, GFP_KERNEL);
+	int i, ret = BUFFER_SIZE;
+	int max_errors = 15;
+	int bad = -1;
+	int bad_start = 0;
+
+	if (!buffer)
+		return 1;
+
+	memset (buffer, byte, BUFFER_SIZE);
+	ether1_writebuffer (dev, buffer, 0, BUFFER_SIZE);
+	memset (buffer, byte ^ 0xff, BUFFER_SIZE);
+	ether1_readbuffer (dev, buffer, 0, BUFFER_SIZE);
+
+	for (i = 0; i < BUFFER_SIZE; i++) {
+		if (buffer[i] != byte) {
+			if (max_errors >= 0 && bad != buffer[i]) {
+				if (bad != -1)
+					printk ("\n");
+				printk (KERN_CRIT "%s: RAM failed with (%02X instead of %02X) at 0x%04X",
+					dev->name, buffer[i], byte, i);
+				ret = -ENODEV;
+				max_errors --;
+				bad = buffer[i];
+				bad_start = i;
+			}
+		} else {
+			if (bad != -1) {
+			    	if (bad_start == i - 1)
+					printk ("\n");
+				else
+					printk (" - 0x%04X\n", i - 1);
+				bad = -1;
+			}
+		}
+	}
+
+	if (bad != -1)
+		printk (" - 0x%04X\n", BUFFER_SIZE);
+	kfree (buffer);
+
+	return ret;
+}
+
+static int
+ether1_reset (struct net_device *dev)
+{
+	writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
+	return BUS_16;
+}
+
+static int
+ether1_init_2(struct net_device *dev)
+{
+	int i;
+	dev->mem_start = 0;
+
+	i = ether1_ramtest (dev, 0x5a);
+
+	if (i > 0)
+		i = ether1_ramtest (dev, 0x1e);
+
+	if (i <= 0)
+	    	return -ENODEV;
+
+	dev->mem_end = i;
+	return 0;
+}
+
+/*
+ * These are the structures that are loaded into the ether RAM card to
+ * initialise the 82586
+ */
+
+/* at 0x0100 */
+#define NOP_ADDR	(TX_AREA_START)
+#define NOP_SIZE	(0x06)
+static nop_t  init_nop  = {
+	0,
+	CMD_NOP,
+	NOP_ADDR
+};
+
+/* at 0x003a */
+#define TDR_ADDR	(0x003a)
+#define TDR_SIZE	(0x08)
+static tdr_t  init_tdr	= {
+	0,
+	CMD_TDR | CMD_INTR,
+	NOP_ADDR,
+	0
+};
+
+/* at 0x002e */
+#define MC_ADDR		(0x002e)
+#define MC_SIZE		(0x0c)
+static mc_t   init_mc   = {
+	0,
+	CMD_SETMULTICAST,
+	TDR_ADDR,
+	0,
+	{ { 0, } }
+};
+
+/* at 0x0022 */
+#define SA_ADDR		(0x0022)
+#define SA_SIZE		(0x0c)
+static sa_t   init_sa   = {
+	0,
+	CMD_SETADDRESS,
+	MC_ADDR,
+	{ 0, }
+};
+
+/* at 0x0010 */
+#define CFG_ADDR	(0x0010)
+#define CFG_SIZE	(0x12)
+static cfg_t  init_cfg  = {
+	0,
+	CMD_CONFIG,
+	SA_ADDR,
+	8,
+	8,
+	CFG8_SRDY,
+	CFG9_PREAMB8 | CFG9_ADDRLENBUF | CFG9_ADDRLEN(6),
+	0,
+	0x60,
+	0,
+	CFG13_RETRY(15) | CFG13_SLOTH(2),
+	0,
+};
+
+/* at 0x0000 */
+#define SCB_ADDR	(0x0000)
+#define SCB_SIZE	(0x10)
+static scb_t  init_scb  = {
+	0,
+	SCB_CMDACKRNR | SCB_CMDACKCNA | SCB_CMDACKFR | SCB_CMDACKCX,
+	CFG_ADDR,
+	RX_AREA_START,
+	0,
+	0,
+	0,
+	0
+};
+
+/* at 0xffee */
+#define ISCP_ADDR	(0xffee)
+#define ISCP_SIZE	(0x08)
+static iscp_t init_iscp = {
+	1,
+	SCB_ADDR,
+	0x0000,
+	0x0000
+};
+
+/* at 0xfff6 */
+#define SCP_ADDR	(0xfff6)
+#define SCP_SIZE	(0x0a)
+static scp_t  init_scp  = {
+	SCP_SY_16BBUS,
+	{ 0, 0 },
+	ISCP_ADDR,
+	0
+};
+
+#define RFD_SIZE	(0x16)
+static rfd_t  init_rfd	= {
+	0,
+	0,
+	0,
+	0,
+	{ 0, },
+	{ 0, },
+	0
+};
+
+#define RBD_SIZE	(0x0a)
+static rbd_t  init_rbd	= {
+	0,
+	0,
+	0,
+	0,
+	ETH_FRAME_LEN + 8
+};
+
+#define TX_SIZE		(0x08)
+#define TBD_SIZE	(0x08)
+
+static int
+ether1_init_for_open (struct net_device *dev)
+{
+	int i, status, addr, next, next2;
+	int failures = 0;
+	unsigned long timeout;
+
+	writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
+
+	for (i = 0; i < 6; i++)
+		init_sa.sa_addr[i] = dev->dev_addr[i];
+
+	/* load data structures into ether1 RAM */
+	ether1_writebuffer (dev, &init_scp,  SCP_ADDR,  SCP_SIZE);
+	ether1_writebuffer (dev, &init_iscp, ISCP_ADDR, ISCP_SIZE);
+	ether1_writebuffer (dev, &init_scb,  SCB_ADDR,  SCB_SIZE);
+	ether1_writebuffer (dev, &init_cfg,  CFG_ADDR,  CFG_SIZE);
+	ether1_writebuffer (dev, &init_sa,   SA_ADDR,   SA_SIZE);
+	ether1_writebuffer (dev, &init_mc,   MC_ADDR,   MC_SIZE);
+	ether1_writebuffer (dev, &init_tdr,  TDR_ADDR,  TDR_SIZE);
+	ether1_writebuffer (dev, &init_nop,  NOP_ADDR,  NOP_SIZE);
+
+	if (ether1_readw(dev, CFG_ADDR, cfg_t, cfg_command, NORMALIRQS) != CMD_CONFIG) {
+		printk (KERN_ERR "%s: detected either RAM fault or compiler bug\n",
+			dev->name);
+		return 1;
+	}
+
+	/*
+	 * setup circularly linked list of { rfd, rbd, buffer }, with
+	 * all rfds circularly linked, rbds circularly linked.
+	 * First rfd is linked to scp, first rbd is linked to first
+	 * rfd.  Last rbd has a suspend command.
+	 */
+	addr = RX_AREA_START;
+	do {
+		next = addr + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
+		next2 = next + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
+
+		if (next2 >= RX_AREA_END) {
+			next = RX_AREA_START;
+			init_rfd.rfd_command = RFD_CMDEL | RFD_CMDSUSPEND;
+			priv(dev)->rx_tail = addr;
+		} else
+			init_rfd.rfd_command = 0;
+		if (addr == RX_AREA_START)
+			init_rfd.rfd_rbdoffset = addr + RFD_SIZE;
+		else
+			init_rfd.rfd_rbdoffset = 0;
+		init_rfd.rfd_link = next;
+		init_rbd.rbd_link = next + RFD_SIZE;
+		init_rbd.rbd_bufl = addr + RFD_SIZE + RBD_SIZE;
+
+		ether1_writebuffer (dev, &init_rfd, addr, RFD_SIZE);
+		ether1_writebuffer (dev, &init_rbd, addr + RFD_SIZE, RBD_SIZE);
+		addr = next;
+	} while (next2 < RX_AREA_END);
+
+	priv(dev)->tx_link = NOP_ADDR;
+	priv(dev)->tx_head = NOP_ADDR + NOP_SIZE;
+	priv(dev)->tx_tail = TDR_ADDR;
+	priv(dev)->rx_head = RX_AREA_START;
+
+	/* release reset & give 586 a prod */
+	priv(dev)->resetting = 1;
+	priv(dev)->initialising = 1;
+	writeb(CTRL_RST, REG_CONTROL);
+	writeb(0, REG_CONTROL);
+	writeb(CTRL_CA, REG_CONTROL);
+
+	/* 586 should now unset iscp.busy */
+	timeout = jiffies + HZ/2;
+	while (ether1_readw(dev, ISCP_ADDR, iscp_t, iscp_busy, DISABLEIRQS) == 1) {
+		if (time_after(jiffies, timeout)) {
+			printk (KERN_WARNING "%s: can't initialise 82586: iscp is busy\n", dev->name);
+			return 1;
+		}
+	}
+
+	/* check status of commands that we issued */
+	timeout += HZ/10;
+	while (((status = ether1_readw(dev, CFG_ADDR, cfg_t, cfg_status, DISABLEIRQS))
+			& STAT_COMPLETE) == 0) {
+		if (time_after(jiffies, timeout))
+			break;
+	}
+
+	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
+		printk (KERN_WARNING "%s: can't initialise 82586: config status %04X\n", dev->name, status);
+		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
+		failures += 1;
+	}
+
+	timeout += HZ/10;
+	while (((status = ether1_readw(dev, SA_ADDR, sa_t, sa_status, DISABLEIRQS))
+			& STAT_COMPLETE) == 0) {
+		if (time_after(jiffies, timeout))
+			break;
+	}
+
+	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
+		printk (KERN_WARNING "%s: can't initialise 82586: set address status %04X\n", dev->name, status);
+		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
+		failures += 1;
+	}
+
+	timeout += HZ/10;
+	while (((status = ether1_readw(dev, MC_ADDR, mc_t, mc_status, DISABLEIRQS))
+			& STAT_COMPLETE) == 0) {
+		if (time_after(jiffies, timeout))
+			break;
+	}
+
+	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
+		printk (KERN_WARNING "%s: can't initialise 82586: set multicast status %04X\n", dev->name, status);
+		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
+		failures += 1;
+	}
+
+	timeout += HZ;
+	while (((status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_status, DISABLEIRQS))
+			& STAT_COMPLETE) == 0) {
+		if (time_after(jiffies, timeout))
+			break;
+	}
+
+	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
+		printk (KERN_WARNING "%s: can't tdr (ignored)\n", dev->name);
+		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
+			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
+	} else {
+		status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_result, DISABLEIRQS);
+		if (status & TDR_XCVRPROB)
+			printk (KERN_WARNING "%s: i/f failed tdr: transceiver problem\n", dev->name);
+		else if ((status & (TDR_SHORT|TDR_OPEN)) && (status & TDR_TIME)) {
+#ifdef FANCY
+			printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d.%d us away\n", dev->name,
+				status & TDR_SHORT ? "short" : "open", (status & TDR_TIME) / 10,
+				(status & TDR_TIME) % 10);
+#else
+			printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d clks away\n", dev->name,
+				status & TDR_SHORT ? "short" : "open", (status & TDR_TIME));
+#endif
+		}
+	}
+
+	if (failures)
+		ether1_reset (dev);
+	return failures ? 1 : 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int
+ether1_txalloc (struct net_device *dev, int size)
+{
+	int start, tail;
+
+	size = (size + 1) & ~1;
+	tail = priv(dev)->tx_tail;
+
+	if (priv(dev)->tx_head + size > TX_AREA_END) {
+		if (tail > priv(dev)->tx_head)
+			return -1;
+		start = TX_AREA_START;
+		if (start + size > tail)
+			return -1;
+		priv(dev)->tx_head = start + size;
+	} else {
+		if (priv(dev)->tx_head < tail && (priv(dev)->tx_head + size) > tail)
+			return -1;
+		start = priv(dev)->tx_head;
+		priv(dev)->tx_head += size;
+	}
+
+	return start;
+}
+
+static int
+ether1_open (struct net_device *dev)
+{
+	if (request_irq(dev->irq, ether1_interrupt, 0, "ether1", dev))
+		return -EAGAIN;
+
+	if (ether1_init_for_open (dev)) {
+		free_irq (dev->irq, dev);
+		return -EAGAIN;
+	}
+
+	netif_start_queue(dev);
+
+	return 0;
+}
+
+static void
+ether1_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	printk(KERN_WARNING "%s: transmit timeout, network cable problem?\n",
+		dev->name);
+	printk(KERN_WARNING "%s: resetting device\n", dev->name);
+
+	ether1_reset (dev);
+
+	if (ether1_init_for_open (dev))
+		printk (KERN_ERR "%s: unable to restart interface\n", dev->name);
+
+	dev->stats.tx_errors++;
+	netif_wake_queue(dev);
+}
+
+static netdev_tx_t
+ether1_sendpacket (struct sk_buff *skb, struct net_device *dev)
+{
+	int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr;
+	unsigned long flags;
+	tx_t tx;
+	tbd_t tbd;
+	nop_t nop;
+
+	if (priv(dev)->restart) {
+		printk(KERN_WARNING "%s: resetting device\n", dev->name);
+
+		ether1_reset(dev);
+
+		if (ether1_init_for_open(dev))
+			printk(KERN_ERR "%s: unable to restart interface\n", dev->name);
+		else
+			priv(dev)->restart = 0;
+	}
+
+	if (skb->len < ETH_ZLEN) {
+		if (skb_padto(skb, ETH_ZLEN))
+			goto out;
+	}
+
+	/*
+	 * insert packet followed by a nop
+	 */
+	txaddr = ether1_txalloc (dev, TX_SIZE);
+	tbdaddr = ether1_txalloc (dev, TBD_SIZE);
+	dataddr = ether1_txalloc (dev, skb->len);
+	nopaddr = ether1_txalloc (dev, NOP_SIZE);
+
+	tx.tx_status = 0;
+	tx.tx_command = CMD_TX | CMD_INTR;
+	tx.tx_link = nopaddr;
+	tx.tx_tbdoffset = tbdaddr;
+	tbd.tbd_opts = TBD_EOL | skb->len;
+	tbd.tbd_link = I82586_NULL;
+	tbd.tbd_bufl = dataddr;
+	tbd.tbd_bufh = 0;
+	nop.nop_status = 0;
+	nop.nop_command = CMD_NOP;
+	nop.nop_link = nopaddr;
+
+	local_irq_save(flags);
+	ether1_writebuffer (dev, &tx, txaddr, TX_SIZE);
+	ether1_writebuffer (dev, &tbd, tbdaddr, TBD_SIZE);
+	ether1_writebuffer (dev, skb->data, dataddr, skb->len);
+	ether1_writebuffer (dev, &nop, nopaddr, NOP_SIZE);
+	tmp = priv(dev)->tx_link;
+	priv(dev)->tx_link = nopaddr;
+
+	/* now reset the previous nop pointer */
+	ether1_writew(dev, txaddr, tmp, nop_t, nop_link, NORMALIRQS);
+
+	local_irq_restore(flags);
+
+	/* handle transmit */
+
+	/* check to see if we have room for a full sized ether frame */
+	tmp = priv(dev)->tx_head;
+	tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
+	priv(dev)->tx_head = tmp;
+	dev_kfree_skb (skb);
+
+	if (tst == -1)
+		netif_stop_queue(dev);
+
+ out:
+	return NETDEV_TX_OK;
+}
+
+static void
+ether1_xmit_done (struct net_device *dev)
+{
+	nop_t nop;
+	int caddr, tst;
+
+	caddr = priv(dev)->tx_tail;
+
+again:
+	ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
+
+	switch (nop.nop_command & CMD_MASK) {
+	case CMD_TDR:
+		/* special case */
+		if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
+				!= (unsigned short)I82586_NULL) {
+			ether1_writew(dev, SCB_CMDCUCSTART | SCB_CMDRXSTART, SCB_ADDR, scb_t,
+				    scb_command, NORMALIRQS);
+			writeb(CTRL_CA, REG_CONTROL);
+		}
+		priv(dev)->tx_tail = NOP_ADDR;
+		return;
+
+	case CMD_NOP:
+		if (nop.nop_link == caddr) {
+			if (priv(dev)->initialising == 0)
+				printk (KERN_WARNING "%s: strange command complete with no tx command!\n", dev->name);
+			else
+			        priv(dev)->initialising = 0;
+			return;
+		}
+		if (caddr == nop.nop_link)
+			return;
+		caddr = nop.nop_link;
+		goto again;
+
+	case CMD_TX:
+		if (nop.nop_status & STAT_COMPLETE)
+			break;
+		printk (KERN_ERR "%s: strange command complete without completed command\n", dev->name);
+		priv(dev)->restart = 1;
+		return;
+
+	default:
+		printk (KERN_WARNING "%s: strange command %d complete! (offset %04X)", dev->name,
+			nop.nop_command & CMD_MASK, caddr);
+		priv(dev)->restart = 1;
+		return;
+	}
+
+	while (nop.nop_status & STAT_COMPLETE) {
+		if (nop.nop_status & STAT_OK) {
+			dev->stats.tx_packets++;
+			dev->stats.collisions += (nop.nop_status & STAT_COLLISIONS);
+		} else {
+			dev->stats.tx_errors++;
+
+			if (nop.nop_status & STAT_COLLAFTERTX)
+				dev->stats.collisions++;
+			if (nop.nop_status & STAT_NOCARRIER)
+				dev->stats.tx_carrier_errors++;
+			if (nop.nop_status & STAT_TXLOSTCTS)
+				printk (KERN_WARNING "%s: cts lost\n", dev->name);
+			if (nop.nop_status & STAT_TXSLOWDMA)
+				dev->stats.tx_fifo_errors++;
+			if (nop.nop_status & STAT_COLLEXCESSIVE)
+				dev->stats.collisions += 16;
+		}
+
+		if (nop.nop_link == caddr) {
+			printk (KERN_ERR "%s: tx buffer chaining error: tx command points to itself\n", dev->name);
+			break;
+		}
+
+		caddr = nop.nop_link;
+		ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
+		if ((nop.nop_command & CMD_MASK) != CMD_NOP) {
+			printk (KERN_ERR "%s: tx buffer chaining error: no nop after tx command\n", dev->name);
+			break;
+		}
+
+		if (caddr == nop.nop_link)
+			break;
+
+		caddr = nop.nop_link;
+		ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
+		if ((nop.nop_command & CMD_MASK) != CMD_TX) {
+			printk (KERN_ERR "%s: tx buffer chaining error: no tx command after nop\n", dev->name);
+			break;
+		}
+	}
+	priv(dev)->tx_tail = caddr;
+
+	caddr = priv(dev)->tx_head;
+	tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
+	priv(dev)->tx_head = caddr;
+	if (tst != -1)
+		netif_wake_queue(dev);
+}
+
+static void
+ether1_recv_done (struct net_device *dev)
+{
+	int status;
+	int nexttail, rbdaddr;
+	rbd_t rbd;
+
+	do {
+		status = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_status, NORMALIRQS);
+		if ((status & RFD_COMPLETE) == 0)
+			break;
+
+		rbdaddr = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_rbdoffset, NORMALIRQS);
+		ether1_readbuffer (dev, &rbd, rbdaddr, RBD_SIZE);
+
+		if ((rbd.rbd_status & (RBD_EOF | RBD_ACNTVALID)) == (RBD_EOF | RBD_ACNTVALID)) {
+			int length = rbd.rbd_status & RBD_ACNT;
+			struct sk_buff *skb;
+
+			length = (length + 1) & ~1;
+			skb = netdev_alloc_skb(dev, length + 2);
+
+			if (skb) {
+				skb_reserve (skb, 2);
+
+				ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length);
+
+				skb->protocol = eth_type_trans (skb, dev);
+				netif_rx (skb);
+				dev->stats.rx_packets++;
+			} else
+				dev->stats.rx_dropped++;
+		} else {
+			printk(KERN_WARNING "%s: %s\n", dev->name,
+				(rbd.rbd_status & RBD_EOF) ? "oversized packet" : "acnt not valid");
+			dev->stats.rx_dropped++;
+		}
+
+		nexttail = ether1_readw(dev, priv(dev)->rx_tail, rfd_t, rfd_link, NORMALIRQS);
+		/* nexttail should be rx_head */
+		if (nexttail != priv(dev)->rx_head)
+			printk(KERN_ERR "%s: receiver buffer chaining error (%04X != %04X)\n",
+				dev->name, nexttail, priv(dev)->rx_head);
+		ether1_writew(dev, RFD_CMDEL | RFD_CMDSUSPEND, nexttail, rfd_t, rfd_command, NORMALIRQS);
+		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_command, NORMALIRQS);
+		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_status, NORMALIRQS);
+		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_rbdoffset, NORMALIRQS);
+	
+		priv(dev)->rx_tail = nexttail;
+		priv(dev)->rx_head = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_link, NORMALIRQS);
+	} while (1);
+}
+
+static irqreturn_t
+ether1_interrupt (int irq, void *dev_id)
+{
+	struct net_device *dev = (struct net_device *)dev_id;
+	int status;
+
+	status = ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS);
+
+	if (status) {
+		ether1_writew(dev, status & (SCB_STRNR | SCB_STCNA | SCB_STFR | SCB_STCX),
+			    SCB_ADDR, scb_t, scb_command, NORMALIRQS);
+		writeb(CTRL_CA | CTRL_ACK, REG_CONTROL);
+		if (status & SCB_STCX) {
+			ether1_xmit_done (dev);
+		}
+		if (status & SCB_STCNA) {
+			if (priv(dev)->resetting == 0)
+				printk (KERN_WARNING "%s: CU went not ready ???\n", dev->name);
+			else
+				priv(dev)->resetting += 1;
+			if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
+					!= (unsigned short)I82586_NULL) {
+				ether1_writew(dev, SCB_CMDCUCSTART, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
+				writeb(CTRL_CA, REG_CONTROL);
+			}
+			if (priv(dev)->resetting == 2)
+				priv(dev)->resetting = 0;
+		}
+		if (status & SCB_STFR) {
+			ether1_recv_done (dev);
+		}
+		if (status & SCB_STRNR) {
+			if (ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS) & SCB_STRXSUSP) {
+				printk (KERN_WARNING "%s: RU went not ready: RU suspended\n", dev->name);
+				ether1_writew(dev, SCB_CMDRXRESUME, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
+				writeb(CTRL_CA, REG_CONTROL);
+				dev->stats.rx_dropped++;	/* we suspended due to lack of buffer space */
+			} else
+				printk(KERN_WARNING "%s: RU went not ready: %04X\n", dev->name,
+					ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS));
+			printk (KERN_WARNING "RU ptr = %04X\n", ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset,
+						NORMALIRQS));
+		}
+	} else
+		writeb(CTRL_ACK, REG_CONTROL);
+
+	return IRQ_HANDLED;
+}
+
+static int
+ether1_close (struct net_device *dev)
+{
+	ether1_reset (dev);
+
+	free_irq(dev->irq, dev);
+
+	return 0;
+}
+
+/*
+ * Set or clear the multicast filter for this adaptor.
+ * num_addrs == -1	Promiscuous mode, receive all packets.
+ * num_addrs == 0	Normal mode, clear multicast list.
+ * num_addrs > 0	Multicast mode, receive normal and MC packets, and do
+ *			best-effort filtering.
+ */
+static void
+ether1_setmulticastlist (struct net_device *dev)
+{
+}
+
+/* ------------------------------------------------------------------------- */
+
+static void ether1_banner(void)
+{
+	static unsigned int version_printed = 0;
+
+	if (net_debug && version_printed++ == 0)
+		printk(KERN_INFO "%s", version);
+}
+
+static const struct net_device_ops ether1_netdev_ops = {
+	.ndo_open		= ether1_open,
+	.ndo_stop		= ether1_close,
+	.ndo_start_xmit		= ether1_sendpacket,
+	.ndo_set_rx_mode	= ether1_setmulticastlist,
+	.ndo_tx_timeout		= ether1_timeout,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+};
+
+static int
+ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+	struct net_device *dev;
+	u8 addr[ETH_ALEN];
+	int i, ret = 0;
+
+	ether1_banner();
+
+	ret = ecard_request_resources(ec);
+	if (ret)
+		goto out;
+
+	dev = alloc_etherdev(sizeof(struct ether1_priv));
+	if (!dev) {
+		ret = -ENOMEM;
+		goto release;
+	}
+
+	SET_NETDEV_DEV(dev, &ec->dev);
+
+	dev->irq = ec->irq;
+	priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
+	if (!priv(dev)->base) {
+		ret = -ENOMEM;
+		goto free;
+	}
+
+	if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) {
+		ret = -ENODEV;
+		goto free;
+	}
+
+	for (i = 0; i < 6; i++)
+		addr[i] = readb(IDPROM_ADDRESS + (i << 2));
+	eth_hw_addr_set(dev, addr);
+
+	if (ether1_init_2(dev)) {
+		ret = -ENODEV;
+		goto free;
+	}
+
+	dev->netdev_ops		= &ether1_netdev_ops;
+	dev->watchdog_timeo	= 5 * HZ / 100;
+
+	ret = register_netdev(dev);
+	if (ret)
+		goto free;
+
+	printk(KERN_INFO "%s: ether1 in slot %d, %pM\n",
+		dev->name, ec->slot_no, dev->dev_addr);
+    
+	ecard_set_drvdata(ec, dev);
+	return 0;
+
+ free:
+	free_netdev(dev);
+ release:
+	ecard_release_resources(ec);
+ out:
+	return ret;
+}
+
+static void ether1_remove(struct expansion_card *ec)
+{
+	struct net_device *dev = ecard_get_drvdata(ec);
+
+	ecard_set_drvdata(ec, NULL);	
+
+	unregister_netdev(dev);
+	free_netdev(dev);
+	ecard_release_resources(ec);
+}
+
+static const struct ecard_id ether1_ids[] = {
+	{ MANU_ACORN, PROD_ACORN_ETHER1 },
+	{ 0xffff, 0xffff }
+};
+
+static struct ecard_driver ether1_driver = {
+	.probe		= ether1_probe,
+	.remove		= ether1_remove,
+	.id_table	= ether1_ids,
+	.drv = {
+		.name	= "ether1",
+	},
+};
+
+static int __init ether1_init(void)
+{
+	return ecard_register_driver(&ether1_driver);
+}
+
+static void __exit ether1_exit(void)
+{
+	ecard_remove_driver(&ether1_driver);
+}
+
+module_init(ether1_init);
+module_exit(ether1_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/i825xx/ether1.h b/drivers/net/ethernet/i825xx/ether1.h
new file mode 100644
index 000000000..3926e042f
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/ether1.h
@@ -0,0 +1,277 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/drivers/acorn/net/ether1.h
+ *
+ *  Copyright (C) 1996 Russell King
+ *
+ *  Network driver for Acorn Ether1 cards.
+ */
+
+#ifndef _LINUX_ether1_H
+#define _LINUX_ether1_H
+
+#ifdef __ETHER1_C
+/* use 0 for production, 1 for verification, >2 for debug */
+#ifndef NET_DEBUG
+#define NET_DEBUG 0
+#endif
+
+#define priv(dev)	((struct ether1_priv *)netdev_priv(dev))
+
+/* Page register */
+#define REG_PAGE	(priv(dev)->base + 0x0000)
+
+/* Control register */
+#define REG_CONTROL	(priv(dev)->base + 0x0004)
+#define CTRL_RST	0x01
+#define CTRL_LOOPBACK	0x02
+#define CTRL_CA		0x04
+#define CTRL_ACK	0x08
+
+#define ETHER1_RAM	(priv(dev)->base + 0x2000)
+
+/* HW address */
+#define IDPROM_ADDRESS	(priv(dev)->base + 0x0024)
+
+struct ether1_priv {
+	void __iomem *base;
+	unsigned int tx_link;
+	unsigned int tx_head;
+	volatile unsigned int tx_tail;
+	volatile unsigned int rx_head;
+	volatile unsigned int rx_tail;
+	unsigned char bus_type;
+	unsigned char resetting;
+	unsigned char initialising : 1;
+	unsigned char restart      : 1;
+};
+
+#define I82586_NULL (-1)
+
+typedef struct { /* tdr */
+	unsigned short tdr_status;
+	unsigned short tdr_command;
+	unsigned short tdr_link;
+	unsigned short tdr_result;
+#define TDR_TIME	(0x7ff)
+#define TDR_SHORT	(1 << 12)
+#define TDR_OPEN	(1 << 13)
+#define TDR_XCVRPROB	(1 << 14)
+#define TDR_LNKOK	(1 << 15)
+} tdr_t;
+
+typedef struct { /* transmit */
+	unsigned short tx_status;
+	unsigned short tx_command;
+	unsigned short tx_link;
+	unsigned short tx_tbdoffset;
+} tx_t;
+
+typedef struct { /* tbd */
+	unsigned short tbd_opts;
+#define TBD_CNT		(0x3fff)
+#define TBD_EOL		(1 << 15)
+	unsigned short tbd_link;
+	unsigned short tbd_bufl;
+	unsigned short tbd_bufh;
+} tbd_t;
+
+typedef struct { /* rfd */
+	unsigned short rfd_status;
+#define RFD_NOEOF	(1 << 6)
+#define RFD_FRAMESHORT	(1 << 7)
+#define RFD_DMAOVRN	(1 << 8)
+#define RFD_NORESOURCES	(1 << 9)
+#define RFD_ALIGNERROR	(1 << 10)
+#define RFD_CRCERROR	(1 << 11)
+#define RFD_OK		(1 << 13)
+#define RFD_FDCONSUMED	(1 << 14)
+#define RFD_COMPLETE	(1 << 15)
+	unsigned short rfd_command;
+#define RFD_CMDSUSPEND	(1 << 14)
+#define RFD_CMDEL	(1 << 15)
+	unsigned short rfd_link;
+	unsigned short rfd_rbdoffset;
+	unsigned char  rfd_dest[6];
+	unsigned char  rfd_src[6];
+	unsigned short rfd_len;
+} rfd_t;
+
+typedef struct { /* rbd */
+	unsigned short rbd_status;
+#define RBD_ACNT	(0x3fff)
+#define RBD_ACNTVALID	(1 << 14)
+#define RBD_EOF		(1 << 15)
+	unsigned short rbd_link;
+	unsigned short rbd_bufl;
+	unsigned short rbd_bufh;
+	unsigned short rbd_len;
+} rbd_t;
+
+typedef struct { /* nop */
+	unsigned short nop_status;
+	unsigned short nop_command;
+	unsigned short nop_link;
+} nop_t;
+
+typedef struct { /* set multicast */
+	unsigned short mc_status;
+	unsigned short mc_command;
+	unsigned short mc_link;
+	unsigned short mc_cnt;
+	unsigned char  mc_addrs[1][6];
+} mc_t;
+
+typedef struct { /* set address */
+	unsigned short sa_status;
+	unsigned short sa_command;
+	unsigned short sa_link;
+	unsigned char  sa_addr[6];
+} sa_t;
+
+typedef struct { /* config command */
+	unsigned short cfg_status;
+	unsigned short cfg_command;
+	unsigned short cfg_link;
+	unsigned char  cfg_bytecnt;	/* size foll data: 4 - 12		 */
+	unsigned char  cfg_fifolim;	/* FIFO threshold			 */
+	unsigned char  cfg_byte8;
+#define CFG8_SRDY	(1 << 6)
+#define CFG8_SAVEBADF	(1 << 7)
+	unsigned char  cfg_byte9;
+#define CFG9_ADDRLEN(x)	(x)
+#define CFG9_ADDRLENBUF	(1 << 3)
+#define CFG9_PREAMB2	(0 << 4)
+#define CFG9_PREAMB4	(1 << 4)
+#define CFG9_PREAMB8	(2 << 4)
+#define CFG9_PREAMB16	(3 << 4)
+#define CFG9_ILOOPBACK	(1 << 6)
+#define CFG9_ELOOPBACK	(1 << 7)
+	unsigned char  cfg_byte10;
+#define CFG10_LINPRI(x)	(x)
+#define CFG10_ACR(x)	(x << 4)
+#define CFG10_BOFMET	(1 << 7)
+	unsigned char  cfg_ifs;
+	unsigned char  cfg_slotl;
+	unsigned char  cfg_byte13;
+#define CFG13_SLOTH(x)	(x)
+#define CFG13_RETRY(x)	(x << 4)
+	unsigned char  cfg_byte14;
+#define CFG14_PROMISC	(1 << 0)
+#define CFG14_DISBRD	(1 << 1)
+#define CFG14_MANCH	(1 << 2)
+#define CFG14_TNCRS	(1 << 3)
+#define CFG14_NOCRC	(1 << 4)
+#define CFG14_CRC16	(1 << 5)
+#define CFG14_BTSTF	(1 << 6)
+#define CFG14_FLGPAD	(1 << 7)
+	unsigned char  cfg_byte15;
+#define CFG15_CSTF(x)	(x)
+#define CFG15_ICSS	(1 << 3)
+#define CFG15_CDTF(x)	(x << 4)
+#define CFG15_ICDS	(1 << 7)
+	unsigned short cfg_minfrmlen;
+} cfg_t;
+
+typedef struct { /* scb */
+	unsigned short scb_status;	/* status of 82586			*/
+#define SCB_STRXMASK		(7 << 4)	/* Receive unit status		*/
+#define SCB_STRXIDLE		(0 << 4)	/* Idle				*/
+#define SCB_STRXSUSP		(1 << 4)	/* Suspended			*/
+#define SCB_STRXNRES		(2 << 4)	/* No resources			*/
+#define SCB_STRXRDY		(4 << 4)	/* Ready			*/
+#define SCB_STCUMASK		(7 << 8)	/* Command unit status		*/
+#define SCB_STCUIDLE		(0 << 8)	/* Idle				*/
+#define SCB_STCUSUSP		(1 << 8)	/* Suspended			*/
+#define SCB_STCUACTV		(2 << 8)	/* Active			*/
+#define SCB_STRNR		(1 << 12)	/* Receive unit not ready	*/
+#define SCB_STCNA		(1 << 13)	/* Command unit not ready	*/
+#define SCB_STFR		(1 << 14)	/* Frame received		*/
+#define SCB_STCX		(1 << 15)	/* Command completed		*/
+	unsigned short scb_command;	/* Next command				*/
+#define SCB_CMDRXSTART		(1 << 4)	/* Start (at rfa_offset)	*/
+#define SCB_CMDRXRESUME		(2 << 4)	/* Resume reception		*/
+#define SCB_CMDRXSUSPEND	(3 << 4)	/* Suspend reception		*/
+#define SCB_CMDRXABORT		(4 << 4)	/* Abort reception		*/
+#define SCB_CMDCUCSTART		(1 << 8)	/* Start (at cbl_offset)	*/
+#define SCB_CMDCUCRESUME	(2 << 8)	/* Resume execution		*/
+#define SCB_CMDCUCSUSPEND	(3 << 8)	/* Suspend execution		*/
+#define SCB_CMDCUCABORT		(4 << 8)	/* Abort execution		*/
+#define SCB_CMDACKRNR		(1 << 12)	/* Ack RU not ready		*/
+#define SCB_CMDACKCNA		(1 << 13)	/* Ack CU not ready		*/
+#define SCB_CMDACKFR		(1 << 14)	/* Ack Frame received		*/
+#define SCB_CMDACKCX		(1 << 15)	/* Ack Command complete		*/
+	unsigned short scb_cbl_offset;	/* Offset of first command unit		*/
+	unsigned short scb_rfa_offset;	/* Offset of first receive frame area	*/
+	unsigned short scb_crc_errors;	/* Properly aligned frame with CRC error*/
+	unsigned short scb_aln_errors;	/* Misaligned frames			*/
+	unsigned short scb_rsc_errors;	/* Frames lost due to no space		*/
+	unsigned short scb_ovn_errors;	/* Frames lost due to slow bus		*/
+} scb_t;
+
+typedef struct { /* iscp */
+	unsigned short iscp_busy;	/* set by CPU before CA			*/
+	unsigned short iscp_offset;	/* offset of SCB			*/
+	unsigned short iscp_basel;	/* base of SCB				*/
+	unsigned short iscp_baseh;
+} iscp_t;
+
+    /* this address must be 0xfff6 */
+typedef struct { /* scp */
+	unsigned short scp_sysbus;	/* bus size */
+#define SCP_SY_16BBUS	0x00
+#define SCP_SY_8BBUS	0x01
+	unsigned short scp_junk[2];	/* junk */
+	unsigned short scp_iscpl;	/* lower 16 bits of iscp */
+	unsigned short scp_iscph;	/* upper 16 bits of iscp */
+} scp_t;
+
+/* commands */
+#define CMD_NOP			0
+#define CMD_SETADDRESS		1
+#define CMD_CONFIG		2
+#define CMD_SETMULTICAST	3
+#define CMD_TX			4
+#define CMD_TDR			5
+#define CMD_DUMP		6
+#define CMD_DIAGNOSE		7
+
+#define CMD_MASK		7
+
+#define CMD_INTR		(1 << 13)
+#define CMD_SUSP		(1 << 14)
+#define CMD_EOL			(1 << 15)
+
+#define STAT_COLLISIONS		(15)
+#define STAT_COLLEXCESSIVE	(1 << 5)
+#define STAT_COLLAFTERTX	(1 << 6)
+#define STAT_TXDEFERRED		(1 << 7)
+#define STAT_TXSLOWDMA		(1 << 8)
+#define STAT_TXLOSTCTS		(1 << 9)
+#define STAT_NOCARRIER		(1 << 10)
+#define STAT_FAIL		(1 << 11)
+#define STAT_ABORTED		(1 << 12)
+#define STAT_OK			(1 << 13)
+#define STAT_BUSY		(1 << 14)
+#define STAT_COMPLETE		(1 << 15)
+#endif
+#endif
+
+/*
+ * Ether1 card definitions:
+ *
+ * FAST accesses:
+ *	+0	Page register
+ * 			16 pages
+ *	+4	Control
+ *			'1' = reset
+ *			'2' = loopback
+ *			'4' = CA
+ *			'8' = int ack
+ *
+ * RAM at address + 0x2000
+ * Pod. Prod id = 3
+ * Words after ID block [base + 8 words]
+ *	+0 pcb issue (0x0c and 0xf3 invalid)
+ *	+1 - +6 eth hw address
+ */
diff --git a/drivers/net/ethernet/i825xx/lasi_82596.c b/drivers/net/ethernet/i825xx/lasi_82596.c
new file mode 100644
index 000000000..0af70094a
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/lasi_82596.c
@@ -0,0 +1,240 @@
+/* lasi_82596.c -- driver for the intel 82596 ethernet controller, as
+   munged into HPPA boxen .
+
+   This driver is based upon 82596.c, original credits are below...
+   but there were too many hoops which HP wants jumped through to
+   keep this code in there in a sane manner.
+
+   3 primary sources of the mess --
+   1) hppa needs *lots* of cacheline flushing to keep this kind of
+   MMIO running.
+
+   2) The 82596 needs to see all of its pointers as their physical
+   address.  Thus virt_to_bus/bus_to_virt are *everywhere*.
+
+   3) The implementation HP is using seems to be significantly pickier
+   about when and how the command and RX units are started.  some
+   command ordering was changed.
+
+   Examination of the mach driver leads one to believe that there
+   might be a saner way to pull this off...  anyone who feels like a
+   full rewrite can be my guest.
+
+   Split 02/13/2000 Sam Creasey (sammy@oh.verio.com)
+
+   02/01/2000  Initial modifications for parisc by Helge Deller (deller@gmx.de)
+   03/02/2000  changes for better/correct(?) cache-flushing (deller)
+*/
+
+/* 82596.c: A generic 82596 ethernet driver for linux. */
+/*
+   Based on Apricot.c
+   Written 1994 by Mark Evans.
+   This driver is for the Apricot 82596 bus-master interface
+
+   Modularised 12/94 Mark Evans
+
+
+   Modified to support the 82596 ethernet chips on 680x0 VME boards.
+   by Richard Hirst <richard@sleepie.demon.co.uk>
+   Renamed to be 82596.c
+
+   980825:  Changed to receive directly in to sk_buffs which are
+   allocated at open() time.  Eliminates copy on incoming frames
+   (small ones are still copied).  Shared data now held in a
+   non-cached page, so we can run on 68060 in copyback mode.
+
+   TBD:
+   * look at deferring rx frames rather than discarding (as per tulip)
+   * handle tx ring full as per tulip
+   * performance test to tune rx_copybreak
+
+   Most of my modifications relate to the braindead big-endian
+   implementation by Intel.  When the i596 is operating in
+   'big-endian' mode, it thinks a 32 bit value of 0x12345678
+   should be stored as 0x56781234.  This is a real pain, when
+   you have linked lists which are shared by the 680x0 and the
+   i596.
+
+   Driver skeleton
+   Written 1993 by Donald Becker.
+   Copyright 1993 United States Government as represented by the Director,
+   National Security Agency. This software may only be used and distributed
+   according to the terms of the GNU General Public License as modified by SRC,
+   incorporated herein by reference.
+
+   The author may be reached as becker@scyld.com, or C/O
+   Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
+
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/pdc.h>
+#include <asm/parisc-device.h>
+
+#define LASI_82596_DRIVER_VERSION "LASI 82596 driver - Revision: 1.30"
+
+#define PA_I82596_RESET		0	/* Offsets relative to LASI-LAN-Addr.*/
+#define PA_CPU_PORT_L_ACCESS	4
+#define PA_CHANNEL_ATTENTION	8
+
+#define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
+
+#define SYSBUS      0x0000006c
+
+/* big endian CPU, 82596 "big" endian mode */
+#define SWAP32(x)   (((u32)(x)<<16) | ((((u32)(x)))>>16))
+#define SWAP16(x)   (x)
+
+#define NONCOHERENT_DMA 1
+
+#include "lib82596.c"
+
+MODULE_AUTHOR("Richard Hirst");
+MODULE_DESCRIPTION("i82596 driver");
+MODULE_LICENSE("GPL");
+module_param(i596_debug, int, 0);
+MODULE_PARM_DESC(i596_debug, "lasi_82596 debug mask");
+
+static inline void ca(struct net_device *dev)
+{
+	gsc_writel(0, dev->base_addr + PA_CHANNEL_ATTENTION);
+}
+
+
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	u32 v = (u32) (c) | (u32) (x);
+	u16 a, b;
+
+	if (lp->options & OPT_SWAP_PORT) {
+		a = v >> 16;
+		b = v & 0xffff;
+	} else {
+		a = v & 0xffff;
+		b = v >> 16;
+	}
+
+	gsc_writel(a, dev->base_addr + PA_CPU_PORT_L_ACCESS);
+	if (!running_on_qemu)
+		udelay(1);
+	gsc_writel(b, dev->base_addr + PA_CPU_PORT_L_ACCESS);
+}
+
+#define LAN_PROM_ADDR	0xF0810000
+
+static int __init
+lan_init_chip(struct parisc_device *dev)
+{
+	struct	net_device *netdevice;
+	struct i596_private *lp;
+	int retval = -ENOMEM;
+	u8 addr[ETH_ALEN];
+	int i;
+
+	if (!dev->irq) {
+		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
+			__FILE__, (unsigned long)dev->hpa.start);
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO "Found i82596 at 0x%lx, IRQ %d\n",
+			(unsigned long)dev->hpa.start, dev->irq);
+
+	netdevice = alloc_etherdev(sizeof(struct i596_private));
+	if (!netdevice)
+		return -ENOMEM;
+	SET_NETDEV_DEV(netdevice, &dev->dev);
+	parisc_set_drvdata (dev, netdevice);
+
+	netdevice->base_addr = dev->hpa.start;
+	netdevice->irq = dev->irq;
+
+	if (pdc_lan_station_id(addr, netdevice->base_addr)) {
+		for (i = 0; i < 6; i++) {
+			addr[i] = gsc_readb(LAN_PROM_ADDR + i);
+		}
+		printk(KERN_INFO
+		       "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
+	}
+	eth_hw_addr_set(netdevice, addr);
+
+	lp = netdev_priv(netdevice);
+	lp->options = dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0;
+	lp->dma = dma_alloc_noncoherent(&dev->dev,
+			sizeof(struct i596_dma), &lp->dma_addr,
+			DMA_BIDIRECTIONAL, GFP_KERNEL);
+	if (!lp->dma)
+		goto out_free_netdev;
+
+	retval = i82596_probe(netdevice);
+	if (retval)
+		goto out_free_dma;
+	return 0;
+
+out_free_dma:
+	dma_free_noncoherent(&dev->dev, sizeof(struct i596_dma),
+		       lp->dma, lp->dma_addr, DMA_BIDIRECTIONAL);
+out_free_netdev:
+	free_netdev(netdevice);
+	return retval;
+}
+
+static void __exit lan_remove_chip(struct parisc_device *pdev)
+{
+	struct net_device *dev = parisc_get_drvdata(pdev);
+	struct i596_private *lp = netdev_priv(dev);
+
+	unregister_netdev (dev);
+	dma_free_noncoherent(&pdev->dev, sizeof(struct i596_private), lp->dma,
+		       lp->dma_addr, DMA_BIDIRECTIONAL);
+	free_netdev (dev);
+}
+
+static const struct parisc_device_id lan_tbl[] __initconst = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00072 },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, lan_tbl);
+
+static struct parisc_driver lan_driver __refdata = {
+	.name		= "lasi_82596",
+	.id_table	= lan_tbl,
+	.probe		= lan_init_chip,
+	.remove         = __exit_p(lan_remove_chip),
+};
+
+static int lasi_82596_init(void)
+{
+	printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
+	return register_parisc_driver(&lan_driver);
+}
+
+module_init(lasi_82596_init);
+
+static void __exit lasi_82596_exit(void)
+{
+	unregister_parisc_driver(&lan_driver);
+}
+
+module_exit(lasi_82596_exit);
diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
new file mode 100644
index 000000000..ca2fb303f
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/lib82596.c
@@ -0,0 +1,1424 @@
+/* lasi_82596.c -- driver for the intel 82596 ethernet controller, as
+   munged into HPPA boxen .
+
+   This driver is based upon 82596.c, original credits are below...
+   but there were too many hoops which HP wants jumped through to
+   keep this code in there in a sane manner.
+
+   3 primary sources of the mess --
+   1) hppa needs *lots* of cacheline flushing to keep this kind of
+   MMIO running.
+
+   2) The 82596 needs to see all of its pointers as their physical
+   address.  Thus virt_to_bus/bus_to_virt are *everywhere*.
+
+   3) The implementation HP is using seems to be significantly pickier
+   about when and how the command and RX units are started.  some
+   command ordering was changed.
+
+   Examination of the mach driver leads one to believe that there
+   might be a saner way to pull this off...  anyone who feels like a
+   full rewrite can be my guest.
+
+   Split 02/13/2000 Sam Creasey (sammy@oh.verio.com)
+
+   02/01/2000  Initial modifications for parisc by Helge Deller (deller@gmx.de)
+   03/02/2000  changes for better/correct(?) cache-flushing (deller)
+*/
+
+/* 82596.c: A generic 82596 ethernet driver for linux. */
+/*
+   Based on Apricot.c
+   Written 1994 by Mark Evans.
+   This driver is for the Apricot 82596 bus-master interface
+
+   Modularised 12/94 Mark Evans
+
+
+   Modified to support the 82596 ethernet chips on 680x0 VME boards.
+   by Richard Hirst <richard@sleepie.demon.co.uk>
+   Renamed to be 82596.c
+
+   980825:  Changed to receive directly in to sk_buffs which are
+   allocated at open() time.  Eliminates copy on incoming frames
+   (small ones are still copied).  Shared data now held in a
+   non-cached page, so we can run on 68060 in copyback mode.
+
+   TBD:
+   * look at deferring rx frames rather than discarding (as per tulip)
+   * handle tx ring full as per tulip
+   * performance test to tune rx_copybreak
+
+   Most of my modifications relate to the braindead big-endian
+   implementation by Intel.  When the i596 is operating in
+   'big-endian' mode, it thinks a 32 bit value of 0x12345678
+   should be stored as 0x56781234.  This is a real pain, when
+   you have linked lists which are shared by the 680x0 and the
+   i596.
+
+   Driver skeleton
+   Written 1993 by Donald Becker.
+   Copyright 1993 United States Government as represented by the Director,
+   National Security Agency. This software may only be used and distributed
+   according to the terms of the GNU General Public License as modified by SRC,
+   incorporated herein by reference.
+
+   The author may be reached as becker@scyld.com, or C/O
+   Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
+
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/gfp.h>
+
+/* DEBUG flags
+ */
+
+#define DEB_INIT	0x0001
+#define DEB_PROBE	0x0002
+#define DEB_SERIOUS	0x0004
+#define DEB_ERRORS	0x0008
+#define DEB_MULTI	0x0010
+#define DEB_TDR		0x0020
+#define DEB_OPEN	0x0040
+#define DEB_RESET	0x0080
+#define DEB_ADDCMD	0x0100
+#define DEB_STATUS	0x0200
+#define DEB_STARTTX	0x0400
+#define DEB_RXADDR	0x0800
+#define DEB_TXADDR	0x1000
+#define DEB_RXFRAME	0x2000
+#define DEB_INTS	0x4000
+#define DEB_STRUCT	0x8000
+#define DEB_ANY		0xffff
+
+
+#define DEB(x, y)	if (i596_debug & (x)) { y; }
+
+
+/*
+ * The MPU_PORT command allows direct access to the 82596. With PORT access
+ * the following commands are available (p5-18). The 32-bit port command
+ * must be word-swapped with the most significant word written first.
+ * This only applies to VME boards.
+ */
+#define PORT_RESET		0x00	/* reset 82596 */
+#define PORT_SELFTEST		0x01	/* selftest */
+#define PORT_ALTSCP		0x02	/* alternate SCB address */
+#define PORT_ALTDUMP		0x03	/* Alternate DUMP address */
+
+static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
+
+/* Copy frames shorter than rx_copybreak, otherwise pass on up in
+ * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
+ */
+static int rx_copybreak = 100;
+
+#define PKT_BUF_SZ	1536
+#define MAX_MC_CNT	64
+
+#define ISCP_BUSY	0x0001
+
+#define I596_NULL ((u32)0xffffffff)
+
+#define CMD_EOL		0x8000	/* The last command of the list, stop. */
+#define CMD_SUSP	0x4000	/* Suspend after doing cmd. */
+#define CMD_INTR	0x2000	/* Interrupt after doing cmd. */
+
+#define CMD_FLEX	0x0008	/* Enable flexible memory model */
+
+enum commands {
+	CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
+	CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
+};
+
+#define STAT_C		0x8000	/* Set to 0 after execution */
+#define STAT_B		0x4000	/* Command being executed */
+#define STAT_OK		0x2000	/* Command executed ok */
+#define STAT_A		0x1000	/* Command aborted */
+
+#define	 CUC_START	0x0100
+#define	 CUC_RESUME	0x0200
+#define	 CUC_SUSPEND    0x0300
+#define	 CUC_ABORT	0x0400
+#define	 RX_START	0x0010
+#define	 RX_RESUME	0x0020
+#define	 RX_SUSPEND	0x0030
+#define	 RX_ABORT	0x0040
+
+#define TX_TIMEOUT	(HZ/20)
+
+
+struct i596_reg {
+	unsigned short porthi;
+	unsigned short portlo;
+	u32            ca;
+};
+
+#define EOF		0x8000
+#define SIZE_MASK	0x3fff
+
+struct i596_tbd {
+	unsigned short size;
+	unsigned short pad;
+	u32            next;
+	u32            data;
+	u32 cache_pad[5];		/* Total 32 bytes... */
+};
+
+/* The command structure has two 'next' pointers; v_next is the address of
+ * the next command as seen by the CPU, b_next is the address of the next
+ * command as seen by the 82596.  The b_next pointer, as used by the 82596
+ * always references the status field of the next command, rather than the
+ * v_next field, because the 82596 is unaware of v_next.  It may seem more
+ * logical to put v_next at the end of the structure, but we cannot do that
+ * because the 82596 expects other fields to be there, depending on command
+ * type.
+ */
+
+struct i596_cmd {
+	struct i596_cmd *v_next;	/* Address from CPUs viewpoint */
+	unsigned short status;
+	unsigned short command;
+	u32            b_next;	/* Address from i596 viewpoint */
+};
+
+struct tx_cmd {
+	struct i596_cmd cmd;
+	u32            tbd;
+	unsigned short size;
+	unsigned short pad;
+	struct sk_buff *skb;		/* So we can free it after tx */
+	dma_addr_t dma_addr;
+#ifdef __LP64__
+	u32 cache_pad[6];		/* Total 64 bytes... */
+#else
+	u32 cache_pad[1];		/* Total 32 bytes... */
+#endif
+};
+
+struct tdr_cmd {
+	struct i596_cmd cmd;
+	unsigned short status;
+	unsigned short pad;
+};
+
+struct mc_cmd {
+	struct i596_cmd cmd;
+	short mc_cnt;
+	char mc_addrs[MAX_MC_CNT*6];
+};
+
+struct sa_cmd {
+	struct i596_cmd cmd;
+	char eth_addr[8];
+};
+
+struct cf_cmd {
+	struct i596_cmd cmd;
+	char i596_config[16];
+};
+
+struct i596_rfd {
+	unsigned short stat;
+	unsigned short cmd;
+	u32            b_next;	/* Address from i596 viewpoint */
+	u32            rbd;
+	unsigned short count;
+	unsigned short size;
+	struct i596_rfd *v_next;	/* Address from CPUs viewpoint */
+	struct i596_rfd *v_prev;
+#ifndef __LP64__
+	u32 cache_pad[2];		/* Total 32 bytes... */
+#endif
+};
+
+struct i596_rbd {
+	/* hardware data */
+	unsigned short count;
+	unsigned short zero1;
+	u32            b_next;
+	u32            b_data;		/* Address from i596 viewpoint */
+	unsigned short size;
+	unsigned short zero2;
+	/* driver data */
+	struct sk_buff *skb;
+	struct i596_rbd *v_next;
+	u32            b_addr;		/* This rbd addr from i596 view */
+	unsigned char *v_data;		/* Address from CPUs viewpoint */
+					/* Total 32 bytes... */
+#ifdef __LP64__
+    u32 cache_pad[4];
+#endif
+};
+
+/* These values as chosen so struct i596_dma fits in one page... */
+
+#define TX_RING_SIZE 32
+#define RX_RING_SIZE 16
+
+struct i596_scb {
+	unsigned short status;
+	unsigned short command;
+	u32           cmd;
+	u32           rfd;
+	u32           crc_err;
+	u32           align_err;
+	u32           resource_err;
+	u32           over_err;
+	u32           rcvdt_err;
+	u32           short_err;
+	unsigned short t_on;
+	unsigned short t_off;
+};
+
+struct i596_iscp {
+	u32 stat;
+	u32 scb;
+};
+
+struct i596_scp {
+	u32 sysbus;
+	u32 pad;
+	u32 iscp;
+};
+
+struct i596_dma {
+	struct i596_scp scp		        __attribute__((aligned(32)));
+	volatile struct i596_iscp iscp		__attribute__((aligned(32)));
+	volatile struct i596_scb scb		__attribute__((aligned(32)));
+	struct sa_cmd sa_cmd			__attribute__((aligned(32)));
+	struct cf_cmd cf_cmd			__attribute__((aligned(32)));
+	struct tdr_cmd tdr_cmd			__attribute__((aligned(32)));
+	struct mc_cmd mc_cmd			__attribute__((aligned(32)));
+	struct i596_rfd rfds[RX_RING_SIZE]	__attribute__((aligned(32)));
+	struct i596_rbd rbds[RX_RING_SIZE]	__attribute__((aligned(32)));
+	struct tx_cmd tx_cmds[TX_RING_SIZE]	__attribute__((aligned(32)));
+	struct i596_tbd tbds[TX_RING_SIZE]	__attribute__((aligned(32)));
+};
+
+struct i596_private {
+	struct i596_dma *dma;
+	u32    stat;
+	int last_restart;
+	struct i596_rfd *rfd_head;
+	struct i596_rbd *rbd_head;
+	struct i596_cmd *cmd_tail;
+	struct i596_cmd *cmd_head;
+	int cmd_backlog;
+	u32    last_cmd;
+	int next_tx_cmd;
+	int options;
+	spinlock_t lock;       /* serialize access to chip */
+	dma_addr_t dma_addr;
+	void __iomem *mpu_port;
+	void __iomem *ca;
+};
+
+static const char init_setup[] =
+{
+	0x8E,		/* length, prefetch on */
+	0xC8,		/* fifo to 8, monitor off */
+	0x80,		/* don't save bad frames */
+	0x2E,		/* No source address insertion, 8 byte preamble */
+	0x00,		/* priority and backoff defaults */
+	0x60,		/* interframe spacing */
+	0x00,		/* slot time LSB */
+	0xf2,		/* slot time and retries */
+	0x00,		/* promiscuous mode */
+	0x00,		/* collision detect */
+	0x40,		/* minimum frame length */
+	0xff,
+	0x00,
+	0x7f /*  *multi IA */ };
+
+static int i596_open(struct net_device *dev);
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t i596_interrupt(int irq, void *dev_id);
+static int i596_close(struct net_device *dev);
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
+static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue);
+static void print_eth(unsigned char *buf, char *str);
+static void set_multicast_list(struct net_device *dev);
+static inline void ca(struct net_device *dev);
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x);
+
+static int rx_ring_size = RX_RING_SIZE;
+static int ticks_limit = 100;
+static int max_cmd_backlog = TX_RING_SIZE-1;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev);
+#endif
+
+static inline dma_addr_t virt_to_dma(struct i596_private *lp, volatile void *v)
+{
+	return lp->dma_addr + ((unsigned long)v - (unsigned long)lp->dma);
+}
+
+#ifdef NONCOHERENT_DMA
+static inline void dma_sync_dev(struct net_device *ndev, volatile void *addr,
+		size_t len)
+{
+	dma_sync_single_for_device(ndev->dev.parent,
+			virt_to_dma(netdev_priv(ndev), addr), len,
+			DMA_BIDIRECTIONAL);
+}
+
+static inline void dma_sync_cpu(struct net_device *ndev, volatile void *addr,
+		size_t len)
+{
+	dma_sync_single_for_cpu(ndev->dev.parent,
+			virt_to_dma(netdev_priv(ndev), addr), len,
+			DMA_BIDIRECTIONAL);
+}
+#else
+static inline void dma_sync_dev(struct net_device *ndev, volatile void *addr,
+		size_t len)
+{
+}
+static inline void dma_sync_cpu(struct net_device *ndev, volatile void *addr,
+		size_t len)
+{
+}
+#endif /* NONCOHERENT_DMA */
+
+static inline int wait_istat(struct net_device *dev, struct i596_dma *dma, int delcnt, char *str)
+{
+	dma_sync_cpu(dev, &(dma->iscp), sizeof(struct i596_iscp));
+	while (--delcnt && dma->iscp.stat) {
+		udelay(10);
+		dma_sync_cpu(dev, &(dma->iscp), sizeof(struct i596_iscp));
+	}
+	if (!delcnt) {
+		printk(KERN_ERR "%s: %s, iscp.stat %04x, didn't clear\n",
+		     dev->name, str, SWAP16(dma->iscp.stat));
+		return -1;
+	} else
+		return 0;
+}
+
+
+static inline int wait_cmd(struct net_device *dev, struct i596_dma *dma, int delcnt, char *str)
+{
+	dma_sync_cpu(dev, &(dma->scb), sizeof(struct i596_scb));
+	while (--delcnt && dma->scb.command) {
+		udelay(10);
+		dma_sync_cpu(dev, &(dma->scb), sizeof(struct i596_scb));
+	}
+	if (!delcnt) {
+		printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
+		       dev->name, str,
+		       SWAP16(dma->scb.status),
+		       SWAP16(dma->scb.command));
+		return -1;
+	} else
+		return 0;
+}
+
+
+static void i596_display_data(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	struct i596_cmd *cmd;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	printk(KERN_DEBUG "lp and scp at %p, .sysbus = %08x, .iscp = %08x\n",
+	       &dma->scp, dma->scp.sysbus, SWAP32(dma->scp.iscp));
+	printk(KERN_DEBUG "iscp at %p, iscp.stat = %08x, .scb = %08x\n",
+	       &dma->iscp, SWAP32(dma->iscp.stat), SWAP32(dma->iscp.scb));
+	printk(KERN_DEBUG "scb at %p, scb.status = %04x, .command = %04x,"
+		" .cmd = %08x, .rfd = %08x\n",
+	       &dma->scb, SWAP16(dma->scb.status), SWAP16(dma->scb.command),
+		SWAP16(dma->scb.cmd), SWAP32(dma->scb.rfd));
+	printk(KERN_DEBUG "   errors: crc %x, align %x, resource %x,"
+	       " over %x, rcvdt %x, short %x\n",
+	       SWAP32(dma->scb.crc_err), SWAP32(dma->scb.align_err),
+	       SWAP32(dma->scb.resource_err), SWAP32(dma->scb.over_err),
+	       SWAP32(dma->scb.rcvdt_err), SWAP32(dma->scb.short_err));
+	cmd = lp->cmd_head;
+	while (cmd != NULL) {
+		printk(KERN_DEBUG
+		       "cmd at %p, .status = %04x, .command = %04x,"
+		       " .b_next = %08x\n",
+		       cmd, SWAP16(cmd->status), SWAP16(cmd->command),
+		       SWAP32(cmd->b_next));
+		cmd = cmd->v_next;
+	}
+	rfd = lp->rfd_head;
+	printk(KERN_DEBUG "rfd_head = %p\n", rfd);
+	do {
+		printk(KERN_DEBUG
+		       "   %p .stat %04x, .cmd %04x, b_next %08x, rbd %08x,"
+		       " count %04x\n",
+		       rfd, SWAP16(rfd->stat), SWAP16(rfd->cmd),
+		       SWAP32(rfd->b_next), SWAP32(rfd->rbd),
+		       SWAP16(rfd->count));
+		rfd = rfd->v_next;
+	} while (rfd != lp->rfd_head);
+	rbd = lp->rbd_head;
+	printk(KERN_DEBUG "rbd_head = %p\n", rbd);
+	do {
+		printk(KERN_DEBUG
+		       "   %p .count %04x, b_next %08x, b_data %08x,"
+		       " size %04x\n",
+			rbd, SWAP16(rbd->count), SWAP32(rbd->b_next),
+		       SWAP32(rbd->b_data), SWAP16(rbd->size));
+		rbd = rbd->v_next;
+	} while (rbd != lp->rbd_head);
+	dma_sync_cpu(dev, dma, sizeof(struct i596_dma));
+}
+
+static inline int init_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	int i;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	/* First build the Receive Buffer Descriptor List */
+
+	for (i = 0, rbd = dma->rbds; i < rx_ring_size; i++, rbd++) {
+		dma_addr_t dma_addr;
+		struct sk_buff *skb;
+
+		skb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ);
+		if (skb == NULL)
+			return -1;
+		dma_addr = dma_map_single(dev->dev.parent, skb->data,
+					  PKT_BUF_SZ, DMA_FROM_DEVICE);
+		rbd->v_next = rbd+1;
+		rbd->b_next = SWAP32(virt_to_dma(lp, rbd+1));
+		rbd->b_addr = SWAP32(virt_to_dma(lp, rbd));
+		rbd->skb = skb;
+		rbd->v_data = skb->data;
+		rbd->b_data = SWAP32(dma_addr);
+		rbd->size = SWAP16(PKT_BUF_SZ);
+	}
+	lp->rbd_head = dma->rbds;
+	rbd = dma->rbds + rx_ring_size - 1;
+	rbd->v_next = dma->rbds;
+	rbd->b_next = SWAP32(virt_to_dma(lp, dma->rbds));
+
+	/* Now build the Receive Frame Descriptor List */
+
+	for (i = 0, rfd = dma->rfds; i < rx_ring_size; i++, rfd++) {
+		rfd->rbd = I596_NULL;
+		rfd->v_next = rfd+1;
+		rfd->v_prev = rfd-1;
+		rfd->b_next = SWAP32(virt_to_dma(lp, rfd+1));
+		rfd->cmd = SWAP16(CMD_FLEX);
+	}
+	lp->rfd_head = dma->rfds;
+	dma->scb.rfd = SWAP32(virt_to_dma(lp, dma->rfds));
+	rfd = dma->rfds;
+	rfd->rbd = SWAP32(virt_to_dma(lp, lp->rbd_head));
+	rfd->v_prev = dma->rfds + rx_ring_size - 1;
+	rfd = dma->rfds + rx_ring_size - 1;
+	rfd->v_next = dma->rfds;
+	rfd->b_next = SWAP32(virt_to_dma(lp, dma->rfds));
+	rfd->cmd = SWAP16(CMD_EOL|CMD_FLEX);
+
+	dma_sync_dev(dev, dma, sizeof(struct i596_dma));
+	return 0;
+}
+
+static inline void remove_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_rbd *rbd;
+	int i;
+
+	for (i = 0, rbd = lp->dma->rbds; i < rx_ring_size; i++, rbd++) {
+		if (rbd->skb == NULL)
+			break;
+		dma_unmap_single(dev->dev.parent,
+				 (dma_addr_t)SWAP32(rbd->b_data),
+				 PKT_BUF_SZ, DMA_FROM_DEVICE);
+		dev_kfree_skb(rbd->skb);
+	}
+}
+
+
+static void rebuild_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	int i;
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+
+	for (i = 0; i < rx_ring_size; i++) {
+		dma->rfds[i].rbd = I596_NULL;
+		dma->rfds[i].cmd = SWAP16(CMD_FLEX);
+	}
+	dma->rfds[rx_ring_size-1].cmd = SWAP16(CMD_EOL|CMD_FLEX);
+	lp->rfd_head = dma->rfds;
+	dma->scb.rfd = SWAP32(virt_to_dma(lp, dma->rfds));
+	lp->rbd_head = dma->rbds;
+	dma->rfds[0].rbd = SWAP32(virt_to_dma(lp, dma->rbds));
+
+	dma_sync_dev(dev, dma, sizeof(struct i596_dma));
+}
+
+
+static int init_i596_mem(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	unsigned long flags;
+
+	mpu_port(dev, PORT_RESET, 0);
+	udelay(100);			/* Wait 100us - seems to help */
+
+	/* change the scp address */
+
+	lp->last_cmd = jiffies;
+
+	dma->scp.sysbus = SYSBUS;
+	dma->scp.iscp = SWAP32(virt_to_dma(lp, &(dma->iscp)));
+	dma->iscp.scb = SWAP32(virt_to_dma(lp, &(dma->scb)));
+	dma->iscp.stat = SWAP32(ISCP_BUSY);
+	lp->cmd_backlog = 0;
+
+	lp->cmd_head = NULL;
+	dma->scb.cmd = I596_NULL;
+
+	DEB(DEB_INIT, printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
+
+	dma_sync_dev(dev, &(dma->scp), sizeof(struct i596_scp));
+	dma_sync_dev(dev, &(dma->iscp), sizeof(struct i596_iscp));
+	dma_sync_dev(dev, &(dma->scb), sizeof(struct i596_scb));
+
+	mpu_port(dev, PORT_ALTSCP, virt_to_dma(lp, &dma->scp));
+	ca(dev);
+	if (wait_istat(dev, dma, 1000, "initialization timed out"))
+		goto failed;
+	DEB(DEB_INIT, printk(KERN_DEBUG
+			     "%s: i82596 initialization successful\n",
+			     dev->name));
+
+	if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) {
+		printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
+		goto failed;
+	}
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+	rebuild_rx_bufs(dev);
+
+	dma->scb.command = 0;
+	dma_sync_dev(dev, &(dma->scb), sizeof(struct i596_scb));
+
+	DEB(DEB_INIT, printk(KERN_DEBUG
+			     "%s: queuing CmdConfigure\n", dev->name));
+	memcpy(dma->cf_cmd.i596_config, init_setup, 14);
+	dma->cf_cmd.cmd.command = SWAP16(CmdConfigure);
+	dma_sync_dev(dev, &(dma->cf_cmd), sizeof(struct cf_cmd));
+	i596_add_cmd(dev, &dma->cf_cmd.cmd);
+
+	DEB(DEB_INIT, printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
+	memcpy(dma->sa_cmd.eth_addr, dev->dev_addr, ETH_ALEN);
+	dma->sa_cmd.cmd.command = SWAP16(CmdSASetup);
+	dma_sync_dev(dev, &(dma->sa_cmd), sizeof(struct sa_cmd));
+	i596_add_cmd(dev, &dma->sa_cmd.cmd);
+
+	DEB(DEB_INIT, printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
+	dma->tdr_cmd.cmd.command = SWAP16(CmdTDR);
+	dma_sync_dev(dev, &(dma->tdr_cmd), sizeof(struct tdr_cmd));
+	i596_add_cmd(dev, &dma->tdr_cmd.cmd);
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (wait_cmd(dev, dma, 1000, "timed out waiting to issue RX_START")) {
+		spin_unlock_irqrestore (&lp->lock, flags);
+		goto failed_free_irq;
+	}
+	DEB(DEB_INIT, printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
+	dma->scb.command = SWAP16(RX_START);
+	dma->scb.rfd = SWAP32(virt_to_dma(lp, dma->rfds));
+	dma_sync_dev(dev, &(dma->scb), sizeof(struct i596_scb));
+
+	ca(dev);
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+	if (wait_cmd(dev, dma, 1000, "RX_START not processed"))
+		goto failed_free_irq;
+	DEB(DEB_INIT, printk(KERN_DEBUG
+			     "%s: Receive unit started OK\n", dev->name));
+	return 0;
+
+failed_free_irq:
+	free_irq(dev->irq, dev);
+failed:
+	printk(KERN_ERR "%s: Failed to initialise 82596\n", dev->name);
+	mpu_port(dev, PORT_RESET, 0);
+	return -1;
+}
+
+
+static inline int i596_rx(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+	int frames = 0;
+
+	DEB(DEB_RXFRAME, printk(KERN_DEBUG
+				"i596_rx(), rfd_head %p, rbd_head %p\n",
+				lp->rfd_head, lp->rbd_head));
+
+
+	rfd = lp->rfd_head;		/* Ref next frame to check */
+
+	dma_sync_cpu(dev, rfd, sizeof(struct i596_rfd));
+	while (rfd->stat & SWAP16(STAT_C)) {	/* Loop while complete frames */
+		if (rfd->rbd == I596_NULL)
+			rbd = NULL;
+		else if (rfd->rbd == lp->rbd_head->b_addr) {
+			rbd = lp->rbd_head;
+			dma_sync_cpu(dev, rbd, sizeof(struct i596_rbd));
+		} else {
+			printk(KERN_ERR "%s: rbd chain broken!\n", dev->name);
+			/* XXX Now what? */
+			rbd = NULL;
+		}
+		DEB(DEB_RXFRAME, printk(KERN_DEBUG
+				      "  rfd %p, rfd.rbd %08x, rfd.stat %04x\n",
+				      rfd, rfd->rbd, rfd->stat));
+
+		if (rbd != NULL && (rfd->stat & SWAP16(STAT_OK))) {
+			/* a good frame */
+			int pkt_len = SWAP16(rbd->count) & 0x3fff;
+			struct sk_buff *skb = rbd->skb;
+			int rx_in_place = 0;
+
+			DEB(DEB_RXADDR, print_eth(rbd->v_data, "received"));
+			frames++;
+
+			/* Check if the packet is long enough to just accept
+			 * without copying to a properly sized skbuff.
+			 */
+
+			if (pkt_len > rx_copybreak) {
+				struct sk_buff *newskb;
+				dma_addr_t dma_addr;
+
+				dma_unmap_single(dev->dev.parent,
+						 (dma_addr_t)SWAP32(rbd->b_data),
+						 PKT_BUF_SZ, DMA_FROM_DEVICE);
+				/* Get fresh skbuff to replace filled one. */
+				newskb = netdev_alloc_skb_ip_align(dev,
+								   PKT_BUF_SZ);
+				if (newskb == NULL) {
+					skb = NULL;	/* drop pkt */
+					goto memory_squeeze;
+				}
+
+				/* Pass up the skb already on the Rx ring. */
+				skb_put(skb, pkt_len);
+				rx_in_place = 1;
+				rbd->skb = newskb;
+				dma_addr = dma_map_single(dev->dev.parent,
+							  newskb->data,
+							  PKT_BUF_SZ,
+							  DMA_FROM_DEVICE);
+				rbd->v_data = newskb->data;
+				rbd->b_data = SWAP32(dma_addr);
+				dma_sync_dev(dev, rbd, sizeof(struct i596_rbd));
+			} else {
+				skb = netdev_alloc_skb_ip_align(dev, pkt_len);
+			}
+memory_squeeze:
+			if (skb == NULL) {
+				/* XXX tulip.c can defer packets here!! */
+				dev->stats.rx_dropped++;
+			} else {
+				if (!rx_in_place) {
+					/* 16 byte align the data fields */
+					dma_sync_single_for_cpu(dev->dev.parent,
+								(dma_addr_t)SWAP32(rbd->b_data),
+								PKT_BUF_SZ, DMA_FROM_DEVICE);
+					skb_put_data(skb, rbd->v_data,
+						     pkt_len);
+					dma_sync_single_for_device(dev->dev.parent,
+								   (dma_addr_t)SWAP32(rbd->b_data),
+								   PKT_BUF_SZ, DMA_FROM_DEVICE);
+				}
+				skb->len = pkt_len;
+				skb->protocol = eth_type_trans(skb, dev);
+				netif_rx(skb);
+				dev->stats.rx_packets++;
+				dev->stats.rx_bytes += pkt_len;
+			}
+		} else {
+			DEB(DEB_ERRORS, printk(KERN_DEBUG
+					       "%s: Error, rfd.stat = 0x%04x\n",
+					       dev->name, rfd->stat));
+			dev->stats.rx_errors++;
+			if (rfd->stat & SWAP16(0x0100))
+				dev->stats.collisions++;
+			if (rfd->stat & SWAP16(0x8000))
+				dev->stats.rx_length_errors++;
+			if (rfd->stat & SWAP16(0x0001))
+				dev->stats.rx_over_errors++;
+			if (rfd->stat & SWAP16(0x0002))
+				dev->stats.rx_fifo_errors++;
+			if (rfd->stat & SWAP16(0x0004))
+				dev->stats.rx_frame_errors++;
+			if (rfd->stat & SWAP16(0x0008))
+				dev->stats.rx_crc_errors++;
+			if (rfd->stat & SWAP16(0x0010))
+				dev->stats.rx_length_errors++;
+		}
+
+		/* Clear the buffer descriptor count and EOF + F flags */
+
+		if (rbd != NULL && (rbd->count & SWAP16(0x4000))) {
+			rbd->count = 0;
+			lp->rbd_head = rbd->v_next;
+			dma_sync_dev(dev, rbd, sizeof(struct i596_rbd));
+		}
+
+		/* Tidy the frame descriptor, marking it as end of list */
+
+		rfd->rbd = I596_NULL;
+		rfd->stat = 0;
+		rfd->cmd = SWAP16(CMD_EOL|CMD_FLEX);
+		rfd->count = 0;
+
+		/* Update record of next frame descriptor to process */
+
+		lp->dma->scb.rfd = rfd->b_next;
+		lp->rfd_head = rfd->v_next;
+		dma_sync_dev(dev, rfd, sizeof(struct i596_rfd));
+
+		/* Remove end-of-list from old end descriptor */
+
+		rfd->v_prev->cmd = SWAP16(CMD_FLEX);
+		dma_sync_dev(dev, rfd->v_prev, sizeof(struct i596_rfd));
+		rfd = lp->rfd_head;
+		dma_sync_cpu(dev, rfd, sizeof(struct i596_rfd));
+	}
+
+	DEB(DEB_RXFRAME, printk(KERN_DEBUG "frames %d\n", frames));
+
+	return 0;
+}
+
+
+static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
+{
+	struct i596_cmd *ptr;
+
+	while (lp->cmd_head != NULL) {
+		ptr = lp->cmd_head;
+		lp->cmd_head = ptr->v_next;
+		lp->cmd_backlog--;
+
+		switch (SWAP16(ptr->command) & 0x7) {
+		case CmdTx:
+			{
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+				dma_unmap_single(dev->dev.parent,
+						 tx_cmd->dma_addr,
+						 skb->len, DMA_TO_DEVICE);
+
+				dev_kfree_skb(skb);
+
+				dev->stats.tx_errors++;
+				dev->stats.tx_aborted_errors++;
+
+				ptr->v_next = NULL;
+				ptr->b_next = I596_NULL;
+				tx_cmd->cmd.command = 0;  /* Mark as free */
+				break;
+			}
+		default:
+			ptr->v_next = NULL;
+			ptr->b_next = I596_NULL;
+		}
+		dma_sync_dev(dev, ptr, sizeof(struct i596_cmd));
+	}
+
+	wait_cmd(dev, lp->dma, 100, "i596_cleanup_cmd timed out");
+	lp->dma->scb.cmd = I596_NULL;
+	dma_sync_dev(dev, &(lp->dma->scb), sizeof(struct i596_scb));
+}
+
+
+static inline void i596_reset(struct net_device *dev, struct i596_private *lp)
+{
+	unsigned long flags;
+
+	DEB(DEB_RESET, printk(KERN_DEBUG "i596_reset\n"));
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	wait_cmd(dev, lp->dma, 100, "i596_reset timed out");
+
+	netif_stop_queue(dev);
+
+	/* FIXME: this command might cause an lpmc */
+	lp->dma->scb.command = SWAP16(CUC_ABORT | RX_ABORT);
+	dma_sync_dev(dev, &(lp->dma->scb), sizeof(struct i596_scb));
+	ca(dev);
+
+	/* wait for shutdown */
+	wait_cmd(dev, lp->dma, 1000, "i596_reset 2 timed out");
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	i596_cleanup_cmd(dev, lp);
+	i596_rx(dev);
+
+	netif_start_queue(dev);
+	init_i596_mem(dev);
+}
+
+
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	unsigned long flags;
+
+	DEB(DEB_ADDCMD, printk(KERN_DEBUG "i596_add_cmd cmd_head %p\n",
+			       lp->cmd_head));
+
+	cmd->status = 0;
+	cmd->command |= SWAP16(CMD_EOL | CMD_INTR);
+	cmd->v_next = NULL;
+	cmd->b_next = I596_NULL;
+	dma_sync_dev(dev, cmd, sizeof(struct i596_cmd));
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (lp->cmd_head != NULL) {
+		lp->cmd_tail->v_next = cmd;
+		lp->cmd_tail->b_next = SWAP32(virt_to_dma(lp, &cmd->status));
+		dma_sync_dev(dev, lp->cmd_tail, sizeof(struct i596_cmd));
+	} else {
+		lp->cmd_head = cmd;
+		wait_cmd(dev, dma, 100, "i596_add_cmd timed out");
+		dma->scb.cmd = SWAP32(virt_to_dma(lp, &cmd->status));
+		dma->scb.command = SWAP16(CUC_START);
+		dma_sync_dev(dev, &(dma->scb), sizeof(struct i596_scb));
+		ca(dev);
+	}
+	lp->cmd_tail = cmd;
+	lp->cmd_backlog++;
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	if (lp->cmd_backlog > max_cmd_backlog) {
+		unsigned long tickssofar = jiffies - lp->last_cmd;
+
+		if (tickssofar < ticks_limit)
+			return;
+
+		printk(KERN_ERR
+		       "%s: command unit timed out, status resetting.\n",
+		       dev->name);
+#if 1
+		i596_reset(dev, lp);
+#endif
+	}
+}
+
+static int i596_open(struct net_device *dev)
+{
+	DEB(DEB_OPEN, printk(KERN_DEBUG
+			     "%s: i596_open() irq %d.\n", dev->name, dev->irq));
+
+	if (init_rx_bufs(dev)) {
+		printk(KERN_ERR "%s: Failed to init rx bufs\n", dev->name);
+		return -EAGAIN;
+	}
+	if (init_i596_mem(dev)) {
+		printk(KERN_ERR "%s: Failed to init memory\n", dev->name);
+		goto out_remove_rx_bufs;
+	}
+	netif_start_queue(dev);
+
+	return 0;
+
+out_remove_rx_bufs:
+	remove_rx_bufs(dev);
+	return -EAGAIN;
+}
+
+static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	/* Transmitter timeout, serious problems. */
+	DEB(DEB_ERRORS, printk(KERN_DEBUG
+			       "%s: transmit timed out, status resetting.\n",
+			       dev->name));
+
+	dev->stats.tx_errors++;
+
+	/* Try to restart the adaptor */
+	if (lp->last_restart == dev->stats.tx_packets) {
+		DEB(DEB_ERRORS, printk(KERN_DEBUG "Resetting board.\n"));
+		/* Shutdown and restart */
+		i596_reset (dev, lp);
+	} else {
+		/* Issue a channel attention signal */
+		DEB(DEB_ERRORS, printk(KERN_DEBUG "Kicking board.\n"));
+		lp->dma->scb.command = SWAP16(CUC_START | RX_START);
+		dma_sync_dev(dev, &(lp->dma->scb), sizeof(struct i596_scb));
+		ca (dev);
+		lp->last_restart = dev->stats.tx_packets;
+	}
+
+	netif_trans_update(dev); /* prevent tx timeout */
+	netif_wake_queue (dev);
+}
+
+
+static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct tx_cmd *tx_cmd;
+	struct i596_tbd *tbd;
+	short length = skb->len;
+
+	DEB(DEB_STARTTX, printk(KERN_DEBUG
+				"%s: i596_start_xmit(%x,%p) called\n",
+				dev->name, skb->len, skb->data));
+
+	if (length < ETH_ZLEN) {
+		if (skb_padto(skb, ETH_ZLEN))
+			return NETDEV_TX_OK;
+		length = ETH_ZLEN;
+	}
+
+	netif_stop_queue(dev);
+
+	tx_cmd = lp->dma->tx_cmds + lp->next_tx_cmd;
+	tbd = lp->dma->tbds + lp->next_tx_cmd;
+
+	if (tx_cmd->cmd.command) {
+		DEB(DEB_ERRORS, printk(KERN_DEBUG
+				       "%s: xmit ring full, dropping packet.\n",
+				       dev->name));
+		dev->stats.tx_dropped++;
+
+		dev_kfree_skb_any(skb);
+	} else {
+		if (++lp->next_tx_cmd == TX_RING_SIZE)
+			lp->next_tx_cmd = 0;
+		tx_cmd->tbd = SWAP32(virt_to_dma(lp, tbd));
+		tbd->next = I596_NULL;
+
+		tx_cmd->cmd.command = SWAP16(CMD_FLEX | CmdTx);
+		tx_cmd->skb = skb;
+
+		tx_cmd->pad = 0;
+		tx_cmd->size = 0;
+		tbd->pad = 0;
+		tbd->size = SWAP16(EOF | length);
+
+		tx_cmd->dma_addr = dma_map_single(dev->dev.parent, skb->data,
+						  skb->len, DMA_TO_DEVICE);
+		tbd->data = SWAP32(tx_cmd->dma_addr);
+
+		DEB(DEB_TXADDR, print_eth(skb->data, "tx-queued"));
+		dma_sync_dev(dev, tx_cmd, sizeof(struct tx_cmd));
+		dma_sync_dev(dev, tbd, sizeof(struct i596_tbd));
+		i596_add_cmd(dev, &tx_cmd->cmd);
+
+		dev->stats.tx_packets++;
+		dev->stats.tx_bytes += length;
+	}
+
+	netif_start_queue(dev);
+
+	return NETDEV_TX_OK;
+}
+
+static void print_eth(unsigned char *add, char *str)
+{
+	printk(KERN_DEBUG "i596 0x%p, %pM --> %pM %02X%02X, %s\n",
+	       add, add + 6, add, add[12], add[13], str);
+}
+static const struct net_device_ops i596_netdev_ops = {
+	.ndo_open		= i596_open,
+	.ndo_stop		= i596_close,
+	.ndo_start_xmit		= i596_start_xmit,
+	.ndo_set_rx_mode	= set_multicast_list,
+	.ndo_tx_timeout		= i596_tx_timeout,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= i596_poll_controller,
+#endif
+};
+
+static int i82596_probe(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	int ret;
+
+	/* This lot is ensure things have been cache line aligned. */
+	BUILD_BUG_ON(sizeof(struct i596_rfd) != 32);
+	BUILD_BUG_ON(sizeof(struct i596_rbd) &  31);
+	BUILD_BUG_ON(sizeof(struct tx_cmd)   &  31);
+	BUILD_BUG_ON(sizeof(struct i596_tbd) != 32);
+#ifndef __LP64__
+	BUILD_BUG_ON(sizeof(struct i596_dma) > 4096);
+#endif
+
+	if (!dev->base_addr || !dev->irq)
+		return -ENODEV;
+
+	dev->netdev_ops = &i596_netdev_ops;
+	dev->watchdog_timeo = TX_TIMEOUT;
+
+	memset(lp->dma, 0, sizeof(struct i596_dma));
+	lp->dma->scb.command = 0;
+	lp->dma->scb.cmd = I596_NULL;
+	lp->dma->scb.rfd = I596_NULL;
+	spin_lock_init(&lp->lock);
+
+	dma_sync_dev(dev, lp->dma, sizeof(struct i596_dma));
+
+	ret = register_netdev(dev);
+	if (ret)
+		return ret;
+
+	DEB(DEB_PROBE, printk(KERN_INFO "%s: 82596 at %#3lx, %pM IRQ %d.\n",
+			      dev->name, dev->base_addr, dev->dev_addr,
+			      dev->irq));
+	DEB(DEB_INIT, printk(KERN_INFO
+			     "%s: dma at 0x%p (%d bytes), lp->scb at 0x%p\n",
+			     dev->name, lp->dma, (int)sizeof(struct i596_dma),
+			     &lp->dma->scb));
+
+	return 0;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	i596_interrupt(dev->irq, dev);
+	enable_irq(dev->irq);
+}
+#endif
+
+static irqreturn_t i596_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct i596_private *lp;
+	struct i596_dma *dma;
+	unsigned short status, ack_cmd = 0;
+
+	lp = netdev_priv(dev);
+	dma = lp->dma;
+
+	spin_lock (&lp->lock);
+
+	wait_cmd(dev, dma, 100, "i596 interrupt, timeout");
+	status = SWAP16(dma->scb.status);
+
+	DEB(DEB_INTS, printk(KERN_DEBUG
+			     "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
+			dev->name, dev->irq, status));
+
+	ack_cmd = status & 0xf000;
+
+	if (!ack_cmd) {
+		DEB(DEB_ERRORS, printk(KERN_DEBUG
+				       "%s: interrupt with no events\n",
+				       dev->name));
+		spin_unlock (&lp->lock);
+		return IRQ_NONE;
+	}
+
+	if ((status & 0x8000) || (status & 0x2000)) {
+		struct i596_cmd *ptr;
+
+		if ((status & 0x8000))
+			DEB(DEB_INTS,
+			    printk(KERN_DEBUG
+				   "%s: i596 interrupt completed command.\n",
+				   dev->name));
+		if ((status & 0x2000))
+			DEB(DEB_INTS,
+			    printk(KERN_DEBUG
+				   "%s: i596 interrupt command unit inactive %x.\n",
+				   dev->name, status & 0x0700));
+
+		while (lp->cmd_head != NULL) {
+			dma_sync_cpu(dev, lp->cmd_head, sizeof(struct i596_cmd));
+			if (!(lp->cmd_head->status & SWAP16(STAT_C)))
+				break;
+
+			ptr = lp->cmd_head;
+
+			DEB(DEB_STATUS,
+			    printk(KERN_DEBUG
+				   "cmd_head->status = %04x, ->command = %04x\n",
+				   SWAP16(lp->cmd_head->status),
+				   SWAP16(lp->cmd_head->command)));
+			lp->cmd_head = ptr->v_next;
+			lp->cmd_backlog--;
+
+			switch (SWAP16(ptr->command) & 0x7) {
+			case CmdTx:
+			    {
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+
+				if (ptr->status & SWAP16(STAT_OK)) {
+					DEB(DEB_TXADDR,
+					    print_eth(skb->data, "tx-done"));
+				} else {
+					dev->stats.tx_errors++;
+					if (ptr->status & SWAP16(0x0020))
+						dev->stats.collisions++;
+					if (!(ptr->status & SWAP16(0x0040)))
+						dev->stats.tx_heartbeat_errors++;
+					if (ptr->status & SWAP16(0x0400))
+						dev->stats.tx_carrier_errors++;
+					if (ptr->status & SWAP16(0x0800))
+						dev->stats.collisions++;
+					if (ptr->status & SWAP16(0x1000))
+						dev->stats.tx_aborted_errors++;
+				}
+				dma_unmap_single(dev->dev.parent,
+						 tx_cmd->dma_addr,
+						 skb->len, DMA_TO_DEVICE);
+				dev_consume_skb_irq(skb);
+
+				tx_cmd->cmd.command = 0; /* Mark free */
+				break;
+			    }
+			case CmdTDR:
+			    {
+				unsigned short status = SWAP16(((struct tdr_cmd *)ptr)->status);
+
+				if (status & 0x8000) {
+					DEB(DEB_ANY,
+					    printk(KERN_DEBUG "%s: link ok.\n",
+						   dev->name));
+				} else {
+					if (status & 0x4000)
+						printk(KERN_ERR
+						       "%s: Transceiver problem.\n",
+						       dev->name);
+					if (status & 0x2000)
+						printk(KERN_ERR
+						       "%s: Termination problem.\n",
+						       dev->name);
+					if (status & 0x1000)
+						printk(KERN_ERR
+						       "%s: Short circuit.\n",
+						       dev->name);
+
+					DEB(DEB_TDR,
+					    printk(KERN_DEBUG "%s: Time %d.\n",
+						   dev->name, status & 0x07ff));
+				}
+				break;
+			    }
+			case CmdConfigure:
+				/*
+				 * Zap command so set_multicast_list() know
+				 * it is free
+				 */
+				ptr->command = 0;
+				break;
+			}
+			ptr->v_next = NULL;
+			ptr->b_next = I596_NULL;
+			dma_sync_dev(dev, ptr, sizeof(struct i596_cmd));
+			lp->last_cmd = jiffies;
+		}
+
+		/* This mess is arranging that only the last of any outstanding
+		 * commands has the interrupt bit set.  Should probably really
+		 * only add to the cmd queue when the CU is stopped.
+		 */
+		ptr = lp->cmd_head;
+		while ((ptr != NULL) && (ptr != lp->cmd_tail)) {
+			struct i596_cmd *prev = ptr;
+
+			ptr->command &= SWAP16(0x1fff);
+			ptr = ptr->v_next;
+			dma_sync_dev(dev, prev, sizeof(struct i596_cmd));
+		}
+
+		if (lp->cmd_head != NULL)
+			ack_cmd |= CUC_START;
+		dma->scb.cmd = SWAP32(virt_to_dma(lp, &lp->cmd_head->status));
+		dma_sync_dev(dev, &dma->scb, sizeof(struct i596_scb));
+	}
+	if ((status & 0x1000) || (status & 0x4000)) {
+		if ((status & 0x4000))
+			DEB(DEB_INTS,
+			    printk(KERN_DEBUG
+				   "%s: i596 interrupt received a frame.\n",
+				   dev->name));
+		i596_rx(dev);
+		/* Only RX_START if stopped - RGH 07-07-96 */
+		if (status & 0x1000) {
+			if (netif_running(dev)) {
+				DEB(DEB_ERRORS,
+				    printk(KERN_DEBUG
+					   "%s: i596 interrupt receive unit inactive, status 0x%x\n",
+					   dev->name, status));
+				ack_cmd |= RX_START;
+				dev->stats.rx_errors++;
+				dev->stats.rx_fifo_errors++;
+				rebuild_rx_bufs(dev);
+			}
+		}
+	}
+	wait_cmd(dev, dma, 100, "i596 interrupt, timeout");
+	dma->scb.command = SWAP16(ack_cmd);
+	dma_sync_dev(dev, &dma->scb, sizeof(struct i596_scb));
+
+	/* DANGER: I suspect that some kind of interrupt
+	 acknowledgement aside from acking the 82596 might be needed
+	 here...  but it's running acceptably without */
+
+	ca(dev);
+
+	wait_cmd(dev, dma, 100, "i596 interrupt, exit timeout");
+	DEB(DEB_INTS, printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name));
+
+	spin_unlock (&lp->lock);
+	return IRQ_HANDLED;
+}
+
+static int i596_close(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	unsigned long flags;
+
+	netif_stop_queue(dev);
+
+	DEB(DEB_INIT,
+	    printk(KERN_DEBUG
+		   "%s: Shutting down ethercard, status was %4.4x.\n",
+		   dev->name, SWAP16(lp->dma->scb.status)));
+
+	spin_lock_irqsave(&lp->lock, flags);
+
+	wait_cmd(dev, lp->dma, 100, "close1 timed out");
+	lp->dma->scb.command = SWAP16(CUC_ABORT | RX_ABORT);
+	dma_sync_dev(dev, &lp->dma->scb, sizeof(struct i596_scb));
+
+	ca(dev);
+
+	wait_cmd(dev, lp->dma, 100, "close2 timed out");
+	spin_unlock_irqrestore(&lp->lock, flags);
+	DEB(DEB_STRUCT, i596_display_data(dev));
+	i596_cleanup_cmd(dev, lp);
+
+	free_irq(dev->irq, dev);
+	remove_rx_bufs(dev);
+
+	return 0;
+}
+
+/*
+ *    Set or clear the multicast filter for this adaptor.
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+	struct i596_dma *dma = lp->dma;
+	int config = 0, cnt;
+
+	DEB(DEB_MULTI,
+	    printk(KERN_DEBUG
+		   "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
+		   dev->name, netdev_mc_count(dev),
+		   dev->flags & IFF_PROMISC ? "ON" : "OFF",
+		   dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
+
+	if ((dev->flags & IFF_PROMISC) &&
+	    !(dma->cf_cmd.i596_config[8] & 0x01)) {
+		dma->cf_cmd.i596_config[8] |= 0x01;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_PROMISC) &&
+	    (dma->cf_cmd.i596_config[8] & 0x01)) {
+		dma->cf_cmd.i596_config[8] &= ~0x01;
+		config = 1;
+	}
+	if ((dev->flags & IFF_ALLMULTI) &&
+	    (dma->cf_cmd.i596_config[11] & 0x20)) {
+		dma->cf_cmd.i596_config[11] &= ~0x20;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_ALLMULTI) &&
+	    !(dma->cf_cmd.i596_config[11] & 0x20)) {
+		dma->cf_cmd.i596_config[11] |= 0x20;
+		config = 1;
+	}
+	if (config) {
+		if (dma->cf_cmd.cmd.command)
+			printk(KERN_INFO
+			       "%s: config change request already queued\n",
+			       dev->name);
+		else {
+			dma->cf_cmd.cmd.command = SWAP16(CmdConfigure);
+			dma_sync_dev(dev, &dma->cf_cmd, sizeof(struct cf_cmd));
+			i596_add_cmd(dev, &dma->cf_cmd.cmd);
+		}
+	}
+
+	cnt = netdev_mc_count(dev);
+	if (cnt > MAX_MC_CNT) {
+		cnt = MAX_MC_CNT;
+		printk(KERN_NOTICE "%s: Only %d multicast addresses supported",
+			dev->name, cnt);
+	}
+
+	if (!netdev_mc_empty(dev)) {
+		struct netdev_hw_addr *ha;
+		unsigned char *cp;
+		struct mc_cmd *cmd;
+
+		cmd = &dma->mc_cmd;
+		cmd->cmd.command = SWAP16(CmdMulticastList);
+		cmd->mc_cnt = SWAP16(netdev_mc_count(dev) * 6);
+		cp = cmd->mc_addrs;
+		netdev_for_each_mc_addr(ha, dev) {
+			if (!cnt--)
+				break;
+			memcpy(cp, ha->addr, ETH_ALEN);
+			if (i596_debug > 1)
+				DEB(DEB_MULTI,
+				    printk(KERN_DEBUG
+					   "%s: Adding address %pM\n",
+					   dev->name, cp));
+			cp += ETH_ALEN;
+		}
+		dma_sync_dev(dev, &dma->mc_cmd, sizeof(struct mc_cmd));
+		i596_add_cmd(dev, &cmd->cmd);
+	}
+}
diff --git a/drivers/net/ethernet/i825xx/sni_82596.c b/drivers/net/ethernet/i825xx/sni_82596.c
new file mode 100644
index 000000000..54bb4d9a0
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/sni_82596.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * sni_82596.c -- driver for intel 82596 ethernet controller, as
+ *  		  used in older SNI RM machines
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#define SNI_82596_DRIVER_VERSION "SNI RM 82596 driver - Revision: 0.01"
+
+static const char sni_82596_string[] = "snirm_82596";
+
+#define SYSBUS      0x00004400
+
+/* big endian CPU, 82596 little endian */
+#define SWAP32(x)   cpu_to_le32((u32)(x))
+#define SWAP16(x)   cpu_to_le16((u16)(x))
+
+#define OPT_MPU_16BIT    0x01
+
+#include "lib82596.c"
+
+MODULE_AUTHOR("Thomas Bogendoerfer");
+MODULE_DESCRIPTION("i82596 driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:snirm_82596");
+module_param(i596_debug, int, 0);
+MODULE_PARM_DESC(i596_debug, "82596 debug mask");
+
+static inline void ca(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	writel(0, lp->ca);
+}
+
+
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	u32 v = (u32) (c) | (u32) (x);
+
+	if (lp->options & OPT_MPU_16BIT) {
+		writew(v & 0xffff, lp->mpu_port);
+		wmb();  /* order writes to MPU port */
+		udelay(1);
+		writew(v >> 16, lp->mpu_port);
+	} else {
+		writel(v, lp->mpu_port);
+		wmb();  /* order writes to MPU port */
+		udelay(1);
+		writel(v, lp->mpu_port);
+	}
+}
+
+
+static int sni_82596_probe(struct platform_device *dev)
+{
+	struct	net_device *netdevice;
+	struct i596_private *lp;
+	struct  resource *res, *ca, *idprom, *options;
+	int	retval = -ENOMEM;
+	void __iomem *mpu_addr;
+	void __iomem *ca_addr;
+	u8 __iomem *eth_addr;
+	u8 mac[ETH_ALEN];
+
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	ca = platform_get_resource(dev, IORESOURCE_MEM, 1);
+	options = platform_get_resource(dev, 0, 0);
+	idprom = platform_get_resource(dev, IORESOURCE_MEM, 2);
+	if (!res || !ca || !options || !idprom)
+		return -ENODEV;
+	mpu_addr = ioremap(res->start, 4);
+	if (!mpu_addr)
+		return -ENOMEM;
+	ca_addr = ioremap(ca->start, 4);
+	if (!ca_addr)
+		goto probe_failed_free_mpu;
+
+	printk(KERN_INFO "Found i82596 at 0x%x\n", res->start);
+
+	netdevice = alloc_etherdev(sizeof(struct i596_private));
+	if (!netdevice)
+		goto probe_failed_free_ca;
+
+	SET_NETDEV_DEV(netdevice, &dev->dev);
+	platform_set_drvdata (dev, netdevice);
+
+	netdevice->base_addr = res->start;
+	netdevice->irq = platform_get_irq(dev, 0);
+
+	eth_addr = ioremap(idprom->start, 0x10);
+	if (!eth_addr)
+		goto probe_failed;
+
+	/* someone seems to like messed up stuff */
+	mac[0] = readb(eth_addr + 0x0b);
+	mac[1] = readb(eth_addr + 0x0a);
+	mac[2] = readb(eth_addr + 0x09);
+	mac[3] = readb(eth_addr + 0x08);
+	mac[4] = readb(eth_addr + 0x07);
+	mac[5] = readb(eth_addr + 0x06);
+	eth_hw_addr_set(netdevice, mac);
+	iounmap(eth_addr);
+
+	if (netdevice->irq < 0) {
+		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
+			__FILE__, netdevice->base_addr);
+		retval = netdevice->irq;
+		goto probe_failed;
+	}
+
+	lp = netdev_priv(netdevice);
+	lp->options = options->flags & IORESOURCE_BITS;
+	lp->ca = ca_addr;
+	lp->mpu_port = mpu_addr;
+
+	lp->dma = dma_alloc_coherent(&dev->dev, sizeof(struct i596_dma),
+				     &lp->dma_addr, GFP_KERNEL);
+	if (!lp->dma)
+		goto probe_failed;
+
+	retval = i82596_probe(netdevice);
+	if (retval)
+		goto probe_failed_free_dma;
+	return 0;
+
+probe_failed_free_dma:
+	dma_free_coherent(&dev->dev, sizeof(struct i596_dma), lp->dma,
+			  lp->dma_addr);
+probe_failed:
+	free_netdev(netdevice);
+probe_failed_free_ca:
+	iounmap(ca_addr);
+probe_failed_free_mpu:
+	iounmap(mpu_addr);
+	return retval;
+}
+
+static int sni_82596_driver_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct i596_private *lp = netdev_priv(dev);
+
+	unregister_netdev(dev);
+	dma_free_coherent(&pdev->dev, sizeof(struct i596_private), lp->dma,
+			  lp->dma_addr);
+	iounmap(lp->ca);
+	iounmap(lp->mpu_port);
+	free_netdev (dev);
+	return 0;
+}
+
+static struct platform_driver sni_82596_driver = {
+	.probe	= sni_82596_probe,
+	.remove	= sni_82596_driver_remove,
+	.driver	= {
+		.name	= sni_82596_string,
+	},
+};
+
+static int sni_82596_init(void)
+{
+	printk(KERN_INFO SNI_82596_DRIVER_VERSION "\n");
+	return platform_driver_register(&sni_82596_driver);
+}
+
+
+static void __exit sni_82596_exit(void)
+{
+	platform_driver_unregister(&sni_82596_driver);
+}
+
+module_init(sni_82596_init);
+module_exit(sni_82596_exit);
diff --git a/drivers/net/ethernet/i825xx/sun3_82586.c b/drivers/net/ethernet/i825xx/sun3_82586.c
new file mode 100644
index 000000000..3909c6a0a
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/sun3_82586.c
@@ -0,0 +1,1185 @@
+/*
+ * Sun3 i82586 Ethernet driver
+ *
+ * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net)
+ *
+ * Original copyright follows:
+ * --------------------------
+ *
+ * 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 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)
+ * --------------------------
+ *
+ * Consult ni52.c for further notes from the original driver.
+ *
+ * This incarnation currently supports the OBIO version of the i82586 chip
+ * used in certain sun3 models.  It should be fairly doable to expand this
+ * to support VME if I should every acquire such a board.
+ *
+ */
+
+static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */
+static int automatic_resume = 0; /* experimental .. better should be zero */
+static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */
+static int fifo=0x8;	/* don't change */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/io.h>
+#include <asm/idprom.h>
+#include <asm/machines.h>
+#include <asm/sun3mmu.h>
+#include <asm/dvma.h>
+#include <asm/byteorder.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include "sun3_82586.h"
+
+#define DRV_NAME "sun3_82586"
+
+#define DEBUG       /* debug on */
+#define SYSBUSVAL 0 /* 16 Bit */
+#define SUN3_82586_TOTAL_SIZE	PAGE_SIZE
+
+#define sun3_attn586()  {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
+#define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
+#define sun3_disint()   {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
+#define sun3_enaint()   {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
+#define sun3_active()   {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}
+
+#define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
+#define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
+#define make16(ptr32) (swab16((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 1536 /* slightly oversized */
+#define XMIT_BUFF_SIZE 1536 /* slightly oversized */
+#define NUM_XMIT_BUFFS 1    /* config for 32K shmem */
+#define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
+#define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
+#define NUM_RECV_BUFFS_32 16 /* config for 32K 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; sun3_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; sun3_reset586(); } } } }
+
+#define WAIT_4_STAT_COMPL(addr) { int i; \
+   for(i=0;i<32767;i++) { \
+     if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
+     DELAY_16(); DELAY_16(); } }
+
+static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
+static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
+static int     sun3_82586_open(struct net_device *dev);
+static int     sun3_82586_close(struct net_device *dev);
+static netdev_tx_t     sun3_82586_send_packet(struct sk_buff *,
+					      struct net_device *);
+static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
+static void    set_multicast_list(struct net_device *dev);
+static void    sun3_82586_timeout(struct net_device *dev, unsigned int txqueue);
+#if 0
+static void    sun3_82586_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    sun3_82586_rcv_int(struct net_device *dev);
+static void    sun3_82586_xmt_int(struct net_device *dev);
+static void    sun3_82586_rnr_int(struct net_device *dev);
+
+struct priv
+{
+	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];
+	volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
+#if (NUM_XMIT_BUFFS == 1)
+	volatile struct nop_cmd_struct *nop_cmds[2];
+#else
+	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 sun3_82586_close(struct net_device *dev)
+{
+	free_irq(dev->irq, dev);
+
+	sun3_reset586(); /* the hard way to stop the receiver */
+
+	netif_stop_queue(dev);
+
+	return 0;
+}
+
+/**********************************************
+ * open device
+ */
+static int sun3_82586_open(struct net_device *dev)
+{
+	int ret;
+
+	sun3_disint();
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	sun3_enaint();
+
+	ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev);
+	if (ret)
+	{
+		sun3_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 = &pb;
+	char *iscp_addr;
+	int i;
+
+	p->base = (unsigned long) dvma_btov(0);
+	p->memtop = (char *)dvma_btov((unsigned long)where);
+	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_addr = (char *)dvma_btov((unsigned long)where);
+
+	p->iscp = (struct iscp_struct *) iscp_addr;
+	memset((char *)p->iscp,0, sizeof(struct iscp_struct));
+
+	p->scp->iscp = make24(p->iscp);
+	p->iscp->busy = 1;
+
+	sun3_reset586();
+	sun3_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 sun3_82586_probe1 and open586.
+ */
+static void alloc586(struct net_device *dev)
+{
+	struct priv *p = netdev_priv(dev);
+
+	sun3_reset586();
+	DELAY(1);
+
+	p->scp	= (struct scp_struct *)	(p->base + SCP_DEFAULT_ADDRESS);
+	p->iscp	= (struct iscp_struct *) dvma_btov(dev->mem_start);
+	p->scb  = (struct scb_struct *)  ((char *)p->iscp + 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->scb_base = make24(dvma_btov(dev->mem_start));
+
+	p->iscp->busy = 1;
+	sun3_reset586();
+	sun3_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));
+}
+
+static int __init sun3_82586_probe(void)
+{
+	struct net_device *dev;
+	unsigned long ioaddr;
+	static int found = 0;
+	int err = -ENOMEM;
+
+	/* check that this machine has an onboard 82586 */
+	switch(idprom->id_machtype) {
+	case SM_SUN3|SM_3_160:
+	case SM_SUN3|SM_3_260:
+		/* these machines have 82586 */
+		break;
+
+	default:
+		return -ENODEV;
+	}
+
+	if (found)
+		return -ENODEV;
+
+	ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
+	if (!ioaddr)
+		return -ENOMEM;
+	found = 1;
+
+	dev = alloc_etherdev(sizeof(struct priv));
+	if (!dev)
+		goto out;
+	dev->irq = IE_IRQ;
+	dev->base_addr = ioaddr;
+	err = sun3_82586_probe1(dev, ioaddr);
+	if (err)
+		goto out1;
+	err = register_netdev(dev);
+	if (err)
+		goto out2;
+	return 0;
+
+out2:
+	release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
+out1:
+	free_netdev(dev);
+out:
+	iounmap((void __iomem *)ioaddr);
+	return err;
+}
+module_init(sun3_82586_probe);
+
+static const struct net_device_ops sun3_82586_netdev_ops = {
+	.ndo_open		= sun3_82586_open,
+	.ndo_stop		= sun3_82586_close,
+	.ndo_start_xmit		= sun3_82586_send_packet,
+	.ndo_set_rx_mode	= set_multicast_list,
+	.ndo_tx_timeout		= sun3_82586_timeout,
+	.ndo_get_stats		= sun3_82586_get_stats,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+};
+
+static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
+{
+	int size, retval;
+
+	if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
+		return -EBUSY;
+
+	/* copy in the ethernet address from the prom */
+	eth_hw_addr_set(dev, idprom->id_ethaddr);
+
+	printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
+
+	/*
+	 * check (or search) IO-Memory, 32K
+	 */
+	size = 0x8000;
+
+	dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
+	dev->mem_end = dev->mem_start + size;
+
+	if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
+		printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 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;
+	}
+
+	((struct priv *)netdev_priv(dev))->memtop =
+					(char *)dvma_btov(dev->mem_start);
+	((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
+	alloc586(dev);
+
+	/* set number of receive-buffs according to memsize */
+	if(size == 0x2000)
+		((struct priv *)netdev_priv(dev))->num_recv_buffs =
+							NUM_RECV_BUFFS_8;
+	else if(size == 0x4000)
+		((struct priv *)netdev_priv(dev))->num_recv_buffs =
+							NUM_RECV_BUFFS_16;
+	else
+		((struct priv *)netdev_priv(dev))->num_recv_buffs =
+							NUM_RECV_BUFFS_32;
+
+	printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
+
+	dev->netdev_ops		= &sun3_82586_netdev_ops;
+	dev->watchdog_timeo	= HZ/20;
+
+	dev->if_port 		= 0;
+	return 0;
+out:
+	release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
+	return retval;
+}
+
+
+static int init586(struct net_device *dev)
+{
+	void *ptr;
+	int i,result=0;
+	struct priv *p = netdev_priv(dev);
+	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 netdev_hw_addr *ha;
+	int num_addrs=netdev_mc_count(dev);
+
+	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	= swab16(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);
+			cfg_cmd->promisc = 1;
+		}
+	}
+	if(dev->flags&IFF_PROMISC)
+		cfg_cmd->promisc = 1;
+	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 */
+	sun3_attn586();
+
+	WAIT_4_STAT_COMPL(cfg_cmd);
+
+	if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
+	{
+		printk("%s: configure command failed: %x\n",dev->name,swab16(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	= swab16(CMD_IASETUP | CMD_LAST);
+	ias_cmd->cmd_link	= 0xffff;
+
+	memcpy((char *)&ias_cmd->iaddr,(const char *) dev->dev_addr,ETH_ALEN);
+
+	p->scb->cbl_offset = make16(ias_cmd);
+
+	p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
+	sun3_attn586();
+
+	WAIT_4_STAT_COMPL(ias_cmd);
+
+	if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
+		printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(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	= swab16(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 */
+	sun3_attn586();
+
+	WAIT_4_STAT_COMPL(tdr_cmd);
+
+	if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
+	{
+		printk("%s: Problems while running the TDR.\n",dev->name);
+	}
+	else
+	{
+		DELAY_16(); /* wait for result */
+		result = swab16(tdr_cmd->status);
+
+		p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
+		sun3_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 = swab16(CMD_MCSETUP | CMD_LAST);
+		mc_cmd->cmd_link = 0xffff;
+		mc_cmd->mc_cnt = swab16(num_addrs * 6);
+
+		i = 0;
+		netdev_for_each_mc_addr(ha, dev)
+			memcpy((char *) mc_cmd->mc_list[i++],
+			       ha->addr, ETH_ALEN);
+
+		p->scb->cbl_offset = make16(mc_cmd);
+		p->scb->cmd_cuc = CUC_START;
+		sun3_attn586();
+
+		WAIT_4_STAT_COMPL(mc_cmd);
+
+		if( (swab16(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		= swab16(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		= swab16(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,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(ptr > (void *)dev->mem_end)
+		{
+			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 = swab16(STAT_COMPL);
+		p->xmit_cmds[i]->cmd_cmd = swab16(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;
+	sun3_attn586();
+	WAIT_4_SCB_CMD();
+#else
+	p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
+	p->xmit_cmds[0]->cmd_cmd	= swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
+#endif
+
+	/*
+	 * ack. interrupts
+	 */
+	p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
+	sun3_attn586();
+	DELAY_16();
+
+	sun3_enaint();
+	sun3_active();
+
+	return 0;
+}
+
+/******************************************************
+ * This is a helper routine for sun3_82586_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 = netdev_priv(dev);
+
+	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 = swab16(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 sun3_82586_interrupt(int irq,void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	unsigned short stat;
+	int cnt=0;
+	struct priv *p;
+
+	if (!dev) {
+		printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
+		return IRQ_NONE;
+	}
+	p = netdev_priv(dev);
+
+	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;
+		sun3_attn586();
+
+		if(stat & STAT_FR)	 /* received a frame */
+			sun3_82586_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;
+				sun3_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);
+				sun3_82586_rnr_int(dev);
+			}
+		}
+
+		if(stat & STAT_CX)		/* command with I-bit set complete */
+			 sun3_82586_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. (sun3_82586_xmt_int can be faster than ack!!) */
+		if(p->scb->cmd_cuc)	 /* timed out? */
+		{
+			printk("%s: Acknowledge timed out.\n",dev->name);
+			sun3_disint();
+			break;
+		}
+	}
+
+	if(debuglevel > 1)
+		printk("i");
+	return IRQ_HANDLED;
+}
+
+/*******************************************************
+ * receive-interrupt
+ */
+
+static void sun3_82586_rcv_int(struct net_device *dev)
+{
+	int status,cnt=0;
+	unsigned short totlen;
+	struct sk_buff *skb;
+	struct rbd_struct *rbd;
+	struct priv *p = netdev_priv(dev);
+
+	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 = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
+				{
+					totlen &= RBD_MASK; /* length of this frame */
+					rbd->status = 0;
+					skb = netdev_alloc_skb(dev, totlen + 2);
+					if(skb != NULL)
+					{
+						skb_reserve(skb,2);
+						skb_put(skb,totlen);
+						skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
+						skb->protocol=eth_type_trans(skb,dev);
+						netif_rx(skb);
+						dev->stats.rx_packets++;
+					}
+					else
+						dev->stats.rx_dropped++;
+				}
+				else
+				{
+					int rstat;
+						 /* free all RBD's until RBD_LAST is set */
+					totlen = 0;
+					while(!((rstat=swab16(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);
+					dev->stats.rx_dropped++;
+			 }
+		}
+		else /* frame !(ok), only with 'save-bad-frames' */
+		{
+			printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
+			dev->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;
+		sun3_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 sun3_82586_rnr_int(struct net_device *dev)
+{
+	struct priv *p = netdev_priv(dev);
+
+	dev->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. */
+	sun3_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 sun3_82586_xmt_int(struct net_device *dev)
+{
+	int status;
+	struct priv *p = netdev_priv(dev);
+
+	if(debuglevel > 0)
+		printk("X");
+
+	status = swab16(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)
+	{
+		dev->stats.tx_packets++;
+		dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
+	}
+	else
+	{
+		dev->stats.tx_errors++;
+		if(status & TCMD_LATECOLL) {
+			printk("%s: late collision detected.\n",dev->name);
+			dev->stats.collisions++;
+		}
+		else if(status & TCMD_NOCARRIER) {
+			dev->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) {
+			dev->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);
+			dev->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 = netdev_priv(dev);
+
+	WAIT_4_SCB_CMD();
+	WAIT_4_SCB_CMD_RUC();
+	p->scb->rfa_offset = make16(p->rfd_first);
+	p->scb->cmd_ruc = RUC_START;
+	sun3_attn586();		/* start cmd. */
+	WAIT_4_SCB_CMD_RUC();	/* wait for accept cmd. (no timeout!!) */
+}
+
+static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	struct priv *p = netdev_priv(dev);
+#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)swab16(p->xmit_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[1]->cmd_status),(int)p->nop_point);
+#endif
+		p->scb->cmd_cuc = CUC_ABORT;
+		sun3_attn586();
+		WAIT_4_SCB_CMD();
+		p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
+		p->scb->cmd_cuc = CUC_START;
+		sun3_attn586();
+		WAIT_4_SCB_CMD();
+		netif_trans_update(dev); /* prevent tx timeout */
+		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,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
+		printk("%s: check, whether you set the right interrupt number!\n",dev->name);
+#endif
+		sun3_82586_close(dev);
+		sun3_82586_open(dev);
+	}
+	netif_trans_update(dev); /* prevent tx timeout */
+}
+
+/******************************************************
+ * send frame
+ */
+
+static netdev_tx_t
+sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	int len,i;
+#ifndef NO_NOPCOMMANDS
+	int next_nop;
+#endif
+	struct priv *p = netdev_priv(dev);
+
+	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 NETDEV_TX_OK;
+	}
+
+	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 NETDEV_TX_BUSY;
+	}
+	else
+#endif
+	{
+		len = skb->len;
+		if (len < ETH_ZLEN) {
+			memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
+			       ETH_ZLEN);
+			len = ETH_ZLEN;
+		}
+		skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], 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,swab16(p->xmit_cmds[0]->cmd_status));
+		}
+#endif
+
+		p->xmit_buffs[0]->size = swab16(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;
+			}
+
+			sun3_attn586();
+			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 = swab16(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]));
+		p->nop_point = next_nop;
+		dev_kfree_skb(skb);
+#	endif
+#else
+		p->xmit_buffs[p->xmit_count]->size = swab16(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]));
+		p->xmit_count = next_nop;
+
+		{
+			unsigned long flags;
+			local_irq_save(flags);
+			if(p->xmit_count != p->xmit_last)
+				netif_wake_queue(dev);
+			p->lock = 0;
+			local_irq_restore(flags);
+		}
+		dev_kfree_skb(skb);
+#endif
+	}
+	return NETDEV_TX_OK;
+}
+
+/*******************************************
+ * Someone wanna have the statistics
+ */
+
+static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
+{
+	struct priv *p = netdev_priv(dev);
+	unsigned short crc,aln,rsc,ovrn;
+
+	crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
+	p->scb->crc_errs = 0;
+	aln = swab16(p->scb->aln_errs);
+	p->scb->aln_errs = 0;
+	rsc = swab16(p->scb->rsc_errs);
+	p->scb->rsc_errs = 0;
+	ovrn = swab16(p->scb->ovrn_errs);
+	p->scb->ovrn_errs = 0;
+
+	dev->stats.rx_crc_errors += crc;
+	dev->stats.rx_fifo_errors += ovrn;
+	dev->stats.rx_frame_errors += aln;
+	dev->stats.rx_dropped += rsc;
+
+	return &dev->stats;
+}
+
+/********************************************************
+ * Set MC list ..
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+	netif_stop_queue(dev);
+	sun3_disint();
+	alloc586(dev);
+	init586(dev);
+	startrecv586(dev);
+	sun3_enaint();
+	netif_wake_queue(dev);
+}
+
+#if 0
+/*
+ * DUMP .. we expect a not running CMD unit and enough space
+ */
+void sun3_82586_dump(struct net_device *dev,void *ptr)
+{
+	struct priv *p = netdev_priv(dev);
+	struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
+	int i;
+
+	p->scb->cmd_cuc = CUC_ABORT;
+	sun3_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;
+	sun3_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
diff --git a/drivers/net/ethernet/i825xx/sun3_82586.h b/drivers/net/ethernet/i825xx/sun3_82586.h
new file mode 100644
index 000000000..d82eca563
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/sun3_82586.h
@@ -0,0 +1,318 @@
+/*
+ * Intel i82586 Ethernet definitions
+ *
+ * This is an extension to the Linux operating system, and is covered by the
+ * same Gnu Public License that covers that work.
+ *
+ * copyrights (c) 1994 by Michael Hipp (hippm@informatik.uni-tuebingen.de)
+ *
+ * I have done a look in the following sources:
+ *   crynwr-packet-driver by Russ Nelson
+ *   Garret A. Wollman's i82586-driver for BSD
+ */
+
+/*
+ * Cloned from ni52.h, copyright as above.
+ *
+ * Modified for Sun3 OBIO i82586 by Sam Creasey (sammy@sammy.net)
+ */
+
+
+/* defines for the obio chip (not vme) */
+#define IEOB_NORSET 0x80        /* don't reset the board */
+#define IEOB_ONAIR  0x40        /* put us on the air */
+#define IEOB_ATTEN  0x20        /* attention! */
+#define IEOB_IENAB  0x10        /* interrupt enable */
+#define IEOB_XXXXX  0x08        /* free bit */
+#define IEOB_XCVRL2 0x04        /* level 2 transceiver? */
+#define IEOB_BUSERR 0x02        /* bus error */
+#define IEOB_INT    0x01        /* interrupt */
+
+/* where the obio one lives */
+#define IE_OBIO 0xc0000
+#define IE_IRQ 3
+
+/*
+ * where to find the System Configuration Pointer (SCP)
+ */
+#define SCP_DEFAULT_ADDRESS 0xfffff4
+
+
+/*
+ * System Configuration Pointer Struct
+ */
+
+struct scp_struct
+{
+  unsigned short zero_dum0;	/* has to be zero */
+  unsigned char  sysbus;	/* 0=16Bit,1=8Bit */
+  unsigned char  zero_dum1;	/* has to be zero for 586 */
+  unsigned short zero_dum2;
+  unsigned short zero_dum3;
+  char          *iscp;		/* pointer to the iscp-block */
+};
+
+
+/*
+ * Intermediate System Configuration Pointer (ISCP)
+ */
+struct iscp_struct
+{
+  unsigned char  busy;          /* 586 clears after successful init */
+  unsigned char  zero_dummy;    /* has to be zero */
+  unsigned short scb_offset;    /* pointeroffset to the scb_base */
+  char          *scb_base;      /* base-address of all 16-bit offsets */
+};
+
+/*
+ * System Control Block (SCB)
+ */
+struct scb_struct
+{
+  unsigned char rus;
+  unsigned char cus;
+  unsigned char cmd_ruc;           /* command word: RU part */
+  unsigned char cmd_cuc;           /* command word: CU part & ACK */
+  unsigned short cbl_offset;    /* pointeroffset, command block list */
+  unsigned short rfa_offset;    /* pointeroffset, receive frame area */
+  unsigned short crc_errs;      /* CRC-Error counter */
+  unsigned short aln_errs;      /* allignmenterror counter */
+  unsigned short rsc_errs;      /* Resourceerror counter */
+  unsigned short ovrn_errs;     /* OVerrunerror counter */
+};
+
+/*
+ * possible command values for the command word
+ */
+#define RUC_MASK	0x0070	/* mask for RU commands */
+#define RUC_NOP		0x0000	/* NOP-command */
+#define RUC_START	0x0010	/* start RU */
+#define RUC_RESUME	0x0020	/* resume RU after suspend */
+#define RUC_SUSPEND	0x0030	/* suspend RU */
+#define RUC_ABORT	0x0040	/* abort receiver operation immediately */
+
+#define CUC_MASK        0x07  /* mask for CU command */
+#define CUC_NOP         0x00  /* NOP-command */
+#define CUC_START       0x01  /* start execution of 1. cmd on the CBL */
+#define CUC_RESUME      0x02  /* resume after suspend */
+#define CUC_SUSPEND     0x03  /* Suspend CU */
+#define CUC_ABORT       0x04  /* abort command operation immediately */
+
+#define ACK_MASK        0xf0  /* mask for ACK command */
+#define ACK_CX          0x80  /* acknowledges STAT_CX */
+#define ACK_FR          0x40  /* ack. STAT_FR */
+#define ACK_CNA         0x20  /* ack. STAT_CNA */
+#define ACK_RNR         0x10  /* ack. STAT_RNR */
+
+/*
+ * possible status values for the status word
+ */
+#define STAT_MASK       0xf0  /* mask for cause of interrupt */
+#define STAT_CX         0x80  /* CU finished cmd with its I bit set */
+#define STAT_FR         0x40  /* RU finished receiving a frame */
+#define STAT_CNA        0x20  /* CU left active state */
+#define STAT_RNR        0x10  /* RU left ready state */
+
+#define CU_STATUS       0x7   /* CU status, 0=idle */
+#define CU_SUSPEND      0x1   /* CU is suspended */
+#define CU_ACTIVE       0x2   /* CU is active */
+
+#define RU_STATUS	0x70	/* RU status, 0=idle */
+#define RU_SUSPEND	0x10	/* RU suspended */
+#define RU_NOSPACE	0x20	/* RU no resources */
+#define RU_READY	0x40	/* RU is ready */
+
+/*
+ * Receive Frame Descriptor (RFD)
+ */
+struct rfd_struct
+{
+  unsigned char  stat_low;	/* status word */
+  unsigned char  stat_high;	/* status word */
+  unsigned char  rfd_sf;	/* 82596 mode only */
+  unsigned char  last;		/* Bit15,Last Frame on List / Bit14,suspend */
+  unsigned short next;		/* linkoffset to next RFD */
+  unsigned short rbd_offset;	/* pointeroffset to RBD-buffer */
+  unsigned char  dest[ETH_ALEN];	/* ethernet-address, destination */
+  unsigned char  source[ETH_ALEN];	/* ethernet-address, source */
+  unsigned short length;	/* 802.3 frame-length */
+  unsigned short zero_dummy;	/* dummy */
+};
+
+#define RFD_LAST     0x80	/* last: last rfd in the list */
+#define RFD_SUSP     0x40	/* last: suspend RU after  */
+#define RFD_COMPL    0x80
+#define RFD_OK       0x20
+#define RFD_BUSY     0x40
+#define RFD_ERR_LEN  0x10     /* Length error (if enabled length-checking */
+#define RFD_ERR_CRC  0x08     /* CRC error */
+#define RFD_ERR_ALGN 0x04     /* Alignment error */
+#define RFD_ERR_RNR  0x02     /* status: receiver out of resources */
+#define RFD_ERR_OVR  0x01     /* DMA Overrun! */
+
+#define RFD_ERR_FTS  0x0080	/* Frame too short */
+#define RFD_ERR_NEOP 0x0040	/* No EOP flag (for bitstuffing only) */
+#define RFD_ERR_TRUN 0x0020	/* (82596 only/SF mode) indicates truncated frame */
+#define RFD_MATCHADD 0x0002     /* status: Destinationaddress !matches IA (only 82596) */
+#define RFD_COLLDET  0x0001	/* Detected collision during reception */
+
+/*
+ * Receive Buffer Descriptor (RBD)
+ */
+struct rbd_struct
+{
+  unsigned short status;	/* status word,number of used bytes in buff */
+  unsigned short next;		/* pointeroffset to next RBD */
+  char          *buffer;	/* receive buffer address pointer */
+  unsigned short size;		/* size of this buffer */
+  unsigned short zero_dummy;    /* dummy */
+};
+
+#define RBD_LAST	0x8000	/* last buffer */
+#define RBD_USED	0x4000	/* this buffer has data */
+#define RBD_MASK	0x3fff	/* size-mask for length */
+
+/*
+ * Statusvalues for Commands/RFD
+ */
+#define STAT_COMPL   0x8000	/* status: frame/command is complete */
+#define STAT_BUSY    0x4000	/* status: frame/command is busy */
+#define STAT_OK      0x2000	/* status: frame/command is ok */
+
+/*
+ * Action-Commands
+ */
+#define CMD_NOP		0x0000	/* NOP */
+#define CMD_IASETUP	0x0001	/* initial address setup command */
+#define CMD_CONFIGURE	0x0002	/* configure command */
+#define CMD_MCSETUP	0x0003	/* MC setup command */
+#define CMD_XMIT	0x0004	/* transmit command */
+#define CMD_TDR		0x0005	/* time domain reflectometer (TDR) command */
+#define CMD_DUMP	0x0006	/* dump command */
+#define CMD_DIAGNOSE	0x0007	/* diagnose command */
+
+/*
+ * Action command bits
+ */
+#define CMD_LAST	0x8000	/* indicates last command in the CBL */
+#define CMD_SUSPEND	0x4000	/* suspend CU after this CB */
+#define CMD_INT		0x2000	/* generate interrupt after execution */
+
+/*
+ * NOP - command
+ */
+struct nop_cmd_struct
+{
+  unsigned short cmd_status;	/* status of this command */
+  unsigned short cmd_cmd;       /* the command itself (+bits) */
+  unsigned short cmd_link;      /* offsetpointer to next command */
+};
+
+/*
+ * IA Setup command
+ */
+struct iasetup_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned char  iaddr[6];
+};
+
+/*
+ * Configure command
+ */
+struct configure_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned char  byte_cnt;   /* size of the config-cmd */
+  unsigned char  fifo;       /* fifo/recv monitor */
+  unsigned char  sav_bf;     /* save bad frames (bit7=1)*/
+  unsigned char  adr_len;    /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/
+  unsigned char  priority;   /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */
+  unsigned char  ifs;        /* inter frame spacing */
+  unsigned char  time_low;   /* slot time low */
+  unsigned char  time_high;  /* slot time high(0-2) and max. retries(4-7) */
+  unsigned char  promisc;    /* promisc-mode(0) , et al (1-7) */
+  unsigned char  carr_coll;  /* carrier(0-3)/collision(4-7) stuff */
+  unsigned char  fram_len;   /* minimal frame len */
+  unsigned char  dummy;	     /* dummy */
+};
+
+/*
+ * Multicast Setup command
+ */
+struct mcsetup_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short mc_cnt;		/* number of bytes in the MC-List */
+  unsigned char  mc_list[][6];  	/* pointer to 6 bytes entries */
+};
+
+/*
+ * DUMP command
+ */
+struct dump_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short dump_offset;    /* pointeroffset to DUMP space */
+};
+
+/*
+ * transmit command
+ */
+struct transmit_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short tbd_offset;	/* pointeroffset to TBD */
+  unsigned char  dest[6];       /* destination address of the frame */
+  unsigned short length;	/* user defined: 802.3 length / Ether type */
+};
+
+#define TCMD_ERRMASK     0x0fa0
+#define TCMD_MAXCOLLMASK 0x000f
+#define TCMD_MAXCOLL     0x0020
+#define TCMD_HEARTBEAT   0x0040
+#define TCMD_DEFERRED    0x0080
+#define TCMD_UNDERRUN    0x0100
+#define TCMD_LOSTCTS     0x0200
+#define TCMD_NOCARRIER   0x0400
+#define TCMD_LATECOLL    0x0800
+
+struct tdr_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short status;
+};
+
+#define TDR_LNK_OK	0x8000	/* No link problem identified */
+#define TDR_XCVR_PRB	0x4000	/* indicates a transceiver problem */
+#define TDR_ET_OPN	0x2000	/* open, no correct termination */
+#define TDR_ET_SRT	0x1000	/* TDR detected a short circuit */
+#define TDR_TIMEMASK	0x07ff	/* mask for the time field */
+
+/*
+ * Transmit Buffer Descriptor (TBD)
+ */
+struct tbd_struct
+{
+  unsigned short size;		/* size + EOF-Flag(15) */
+  unsigned short next;          /* pointeroffset to next TBD */
+  char          *buffer;        /* pointer to buffer */
+};
+
+#define TBD_LAST 0x8000         /* EOF-Flag, indicates last buffer in list */
+
+
+
+