1998-11-30 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>

	Clean up linux emulation code to make it architecture-independent
	as much as possible.

	* linux: Renamed from linuxdev.
	* Makefile.in (objfiles): Add linux.o instead of linuxdev.o.
	(MAKE): New variable. Used for the linux.o target.
	* configure.in: Add AC_CHECK_TOOL(MAKE, make).
	* i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with
	OSF Mach 3.0. Suggested by Elgin Lee <ehl@funghi.com>.
	* linux/src: Renamed from linux/linux.
	* linux/dev: Renamed from linux/mach.
	* linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h,
	instead of mach/include/linux/autoconf.h.
	* Makefile.in (all): Target ../linux.o instead of ../linuxdev.o.
	* linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead
	of <i386/ipl.h>.
	* linux/dev/drivers/net/auto_irq.c: Remove unneeded header files,
	<i386/ipl.h> and <i386/pic.h>.
	* linux/dev/init/main.c: Many i386-dependent codes moved to ...
	* linux/dev/arch/i386/irq.c: ... here.
	* linux/dev/arch/i386/setup.c: New file.
	* linux/dev/arch/i386/linux_emul.h: Likewise.
	* linux/dev/arch/i386/glue/timer.c: Merged into sched.c.
	* linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead
	of <i386/ipl.h>, and moved to ...
	* linux/dev/kernel/sched.c: ... here.
	* linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and
	<linux_emul.h>, instead of i386-dependent header files, and
	moved to ...
	* linux/dev/glue/blocl.c: ... here.
	* linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and
	<linux_emul.h>, instead of i386-dependent header files, and
	moved to ...
	* linux/dev/glue/net.c: ... here.
	* linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ...
	* linux/dev/glue/misc.c: ... here.
	* linux/dev/arch/i386/glue/kmem.c: Moved to ...
	* linux/dev/glue/kmem.c: ... here.

1 files changed, 2874 insertions, 0 deletions

diff --git a/linux/src/drivers/net/tulip.c b/linux/src/drivers/net/tulip.c
new file mode 100644
index 0000000..4aba1af
--- /dev/null
+++ b/linux/src/drivers/net/tulip.c
@@ -0,0 +1,2874 @@
+/* tulip.c: A DEC 21040-family ethernet driver for Linux. */
+/*
+	Written 1994-1998 by Donald Becker.
+
+	This software may be used and distributed according to the terms
+	of the GNU Public License, incorporated herein by reference.
+
+	This driver is for the Digital "Tulip" ethernet adapter interface.
+	It should work with most DEC 21*4*-based chips/ethercards, as well as
+	PNIC and MXIC chips.
+
+	The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O
+	Center of Excellence in Space Data and Information Sciences
+	   Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
+
+	Support and updates available at
+	http://cesdis.gsfc.nasa.gov/linux/drivers/tulip.html
+*/
+
+#define SMP_CHECK
+static const char version[] = "tulip.c:v0.89H 5/23/98 becker@cesdis.gsfc.nasa.gov\n";
+
+/* A few user-configurable values. */
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 25;
+
+#define MAX_UNITS 8
+/* Used to pass the full-duplex flag, etc. */
+static int full_duplex[MAX_UNITS] = {0, };
+static int options[MAX_UNITS] = {0, };
+static int mtu[MAX_UNITS] = {0, };			/* Jumbo MTU for interfaces. */
+
+/*  The possible media types that can be set in options[] are: */
+static const char * const medianame[] = {
+	"10baseT", "10base2", "AUI", "100baseTx",
+	"10baseT-FD", "100baseTx-FD", "100baseT4", "100baseFx",
+	"100baseFx-FD", "MII 10baseT", "MII 10baseT-FD", "MII",
+	"10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FD", "MII 100baseT4",
+};
+
+/* Set if the PCI BIOS detects the chips on a multiport board backwards. */
+#ifdef REVERSE_PROBE_ORDER
+static int reverse_probe = 1;
+#else
+static int reverse_probe = 0;
+#endif
+
+/* Keep the ring sizes a power of two for efficiency.
+   Making the Tx ring too large decreases the effectiveness of channel
+   bonding and packet priority.
+   There are no ill effects from too-large receive rings. */
+#define TX_RING_SIZE	16
+#define RX_RING_SIZE	32
+
+/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
+#ifdef __alpha__
+static int rx_copybreak = 1518;
+#else
+static int rx_copybreak = 100;
+#endif
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT  (4*HZ)
+
+#include <linux/config.h>
+#ifdef MODULE
+#ifdef MODVERSIONS
+#include <linux/modversions.h>
+#endif
+#include <linux/module.h>
+#include <linux/version.h>
+#else
+#define MOD_INC_USE_COUNT
+#define MOD_DEC_USE_COUNT
+#endif
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/bios32.h>
+#include <asm/processor.h>		/* Processor type for cache alignment. */
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+/* Kernel compatibility defines, common to David Hind's PCMCIA package.
+   This is only in the support-all-kernels source code. */
+#include <linux/version.h>		/* Evil, but neccessary */
+
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10300
+#define RUN_AT(x) (x)			/* What to put in timer->expires.  */
+#define DEV_ALLOC_SKB(len) alloc_skb(len, GFP_ATOMIC)
+#define virt_to_bus(addr)  ((unsigned long)addr)
+#define bus_to_virt(addr) ((void*)addr)
+
+#else  /* 1.3.0 and later */
+#define RUN_AT(x) (jiffies + (x))
+#define DEV_ALLOC_SKB(len) dev_alloc_skb(len + 2)
+#endif
+
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10338
+#ifdef MODULE
+#if !defined(CONFIG_MODVERSIONS) && !defined(__NO_VERSION__)
+char kernel_version[] = UTS_RELEASE;
+#endif
+#else
+#undef MOD_INC_USE_COUNT
+#define MOD_INC_USE_COUNT
+#undef MOD_DEC_USE_COUNT
+#define MOD_DEC_USE_COUNT
+#endif
+#endif /* 1.3.38 */
+
+#if (LINUX_VERSION_CODE >= 0x10344)
+#define NEW_MULTICAST
+#include <linux/delay.h>
+#endif
+#if (LINUX_VERSION_CODE >= 0x20100)
+char kernel_version[] = UTS_RELEASE;
+#endif
+#ifdef SA_SHIRQ
+#define IRQ(irq, dev_id, pt_regs) (irq, dev_id, pt_regs)
+#else
+#define IRQ(irq, dev_id, pt_regs) (irq, pt_regs)
+#endif
+
+#if (LINUX_VERSION_CODE < 0x20123)
+#define hard_smp_processor_id() smp_processor_id()
+#define test_and_set_bit(val, addr) set_bit(val, addr)
+#endif
+
+/* This my implementation of shared IRQs, now only used for 1.2.13. */
+#ifdef HAVE_SHARED_IRQ
+#define USE_SHARED_IRQ
+#include <linux/shared_irq.h>
+#endif
+
+/* The total size is unusually large: The 21040 aligns each of its 16
+   longword-wide registers on a quadword boundary. */
+#define TULIP_TOTAL_SIZE 0x80
+
+#ifdef HAVE_DEVLIST
+struct netdev_entry tulip_drv =
+{"Tulip", tulip_pci_probe, TULIP_TOTAL_SIZE, NULL};
+#endif
+
+#ifdef TULIP_DEBUG
+int tulip_debug = TULIP_DEBUG;
+#else
+int tulip_debug = 1;
+#endif
+
+/*
+				Theory of Operation
+
+I. Board Compatibility
+
+This device driver is designed for the DECchip "Tulip", Digital's
+single-chip ethernet controllers for PCI.  Supported members of the family
+are the 21040, 21041, 21140, 21140A, 21142, and 21143.  These chips are used on
+many PCI boards including the SMC EtherPower series.
+
+
+II. Board-specific settings
+
+PCI bus devices are configured by the system at boot time, so no jumpers
+need to be set on the board.  The system BIOS preferably should assign the
+PCI INTA signal to an otherwise unused system IRQ line.
+Note: Kernel versions earlier than 1.3.73 do not support shared PCI
+interrupt lines.
+
+III. Driver operation
+
+IIIa. Ring buffers
+
+The Tulip can use either ring buffers or lists of Tx and Rx descriptors.
+This driver uses statically allocated rings of Rx and Tx descriptors, set at
+compile time by RX/TX_RING_SIZE.  This version of the driver allocates skbuffs
+for the Rx ring buffers at open() time and passes the skb->data field to the
+Tulip as receive data buffers.  When an incoming frame is less than
+RX_COPYBREAK bytes long, a fresh skbuff is allocated and the frame is
+copied to the new skbuff.  When the incoming frame is larger, the skbuff is
+passed directly up the protocol stack and replaced by a newly allocated
+skbuff.
+
+The RX_COPYBREAK value is chosen to trade-off the memory wasted by
+using a full-sized skbuff for small frames vs. the copying costs of larger
+frames.  For small frames the copying cost is negligible (esp. considering
+that we are pre-loading the cache with immediately useful header
+information).  For large frames the copying cost is non-trivial, and the
+larger copy might flush the cache of useful data.  A subtle aspect of this
+choice is that the Tulip only receives into longword aligned buffers, thus
+the IP header at offset 14 isn't longword aligned for further processing.
+Copied frames are put into the new skbuff at an offset of "+2", thus copying
+has the beneficial effect of aligning the IP header and preloading the
+cache.
+
+IIIC. Synchronization
+The driver runs as two independent, single-threaded flows of control.  One
+is the send-packet routine, which enforces single-threaded use by the
+dev->tbusy flag.  The other thread is the interrupt handler, which is single
+threaded by the hardware and other software.
+
+The send packet thread has partial control over the Tx ring and 'dev->tbusy'
+flag.  It sets the tbusy flag whenever it's queuing a Tx packet. If the next
+queue slot is empty, it clears the tbusy flag when finished otherwise it sets
+the 'tp->tx_full' flag.
+
+The interrupt handler has exclusive control over the Rx ring and records stats
+from the Tx ring.  (The Tx-done interrupt can't be selectively turned off, so
+we can't avoid the interrupt overhead by having the Tx routine reap the Tx
+stats.)	 After reaping the stats, it marks the queue entry as empty by setting
+the 'base' to zero.	 Iff the 'tp->tx_full' flag is set, it clears both the
+tx_full and tbusy flags.
+
+IV. Notes
+
+Thanks to Duke Kamstra of SMC for providing an EtherPower board.
+
+IVb. References
+
+http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html
+http://www.digital.com  (search for current 21*4* datasheets and "21X4 SROM")
+http://www.national.com/pf/DP/DP83840.html
+
+IVc. Errata
+
+The DEC databook doesn't document which Rx filter settings accept broadcast
+packets.  Nor does it document how to configure the part to configure the
+serial subsystem for normal (vs. loopback) operation or how to have it
+autoswitch between internal 10baseT, SIA and AUI transceivers.
+
+The 21040 databook claims that CSR13, CSR14, and CSR15 should each be the last
+register of the set CSR12-15 written.  Hmmm, now how is that possible?  */
+
+
+/* A few values that may be tweaked. */
+#define PKT_BUF_SZ		1536			/* Size of each temporary Rx buffer.*/
+
+/* This is a mysterious value that can be written to CSR11 in the 21040 (only)
+   to support a pre-NWay full-duplex signaling mechanism using short frames.
+   No one knows what it should be, but if left at its default value some
+   10base2(!) packets trigger a full-duplex-request interrupt. */
+#define FULL_DUPLEX_MAGIC	0x6969
+
+#ifndef PCI_VENDOR_ID_DEC		/* Now defined in linux/pci.h */
+#define PCI_VENDOR_ID_DEC			0x1011
+#define PCI_DEVICE_ID_TULIP			0x0002		/* 21040. */
+#define PCI_DEVICE_ID_TULIP_FAST	0x0009		/* 21140. */
+#endif
+
+#ifndef PCI_DEVICE_ID_DEC_TULIP_PLUS
+#define PCI_DEVICE_ID_DEC_TULIP_PLUS	0x0014		/* 21041. */
+#endif
+#ifndef PCI_DEVICE_ID_DEC_TULIP_21142
+#define PCI_DEVICE_ID_DEC_TULIP_21142	0x0019
+#endif
+
+#ifndef PCI_VENDOR_ID_LITEON
+#define PCI_VENDOR_ID_LITEON	0x11AD
+#endif
+
+#ifndef PCI_VENDOR_ID_MXIC
+#define	PCI_VENDOR_ID_MXIC		0x10d9
+#define PCI_DEVICE_ID_MX98713	0x0512
+#define PCI_DEVICE_ID_MX98715	0x0531
+#define PCI_DEVICE_ID_MX98725	0x0531
+#endif
+
+/* The rest of these values should never change. */
+
+static void tulip_timer(unsigned long data);
+static void t21142_timer(unsigned long data);
+static void mxic_timer(unsigned long data);
+static void pnic_timer(unsigned long data);
+
+/* A table describing the chip types. */
+enum tbl_flag { HAS_MII=1, HAS_MEDIA_TABLE = 2, CSR12_IN_SROM = 4,};
+static struct tulip_chip_table {
+	int vendor_id, device_id;
+	char *chip_name;
+	int io_size;
+	int valid_intrs;			/* CSR7 interrupt enable settings */
+	int flags;
+	void (*media_timer)(unsigned long data);
+} tulip_tbl[] = {
+  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
+	"Digital DC21040 Tulip", 128, 0x0001ebef, 0, tulip_timer },
+  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
+	"Digital DC21041 Tulip", 128, 0x0001ebef, HAS_MEDIA_TABLE, tulip_timer },
+  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST,
+	"Digital DS21140 Tulip", 128, 0x0001ebef,
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM,
+	tulip_timer },
+  { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_21142,
+	"Digital DS21142/3 Tulip", 256, 0x0801fbff,
+	HAS_MII | HAS_MEDIA_TABLE, t21142_timer },
+  { PCI_VENDOR_ID_LITEON, 0x0002,
+	"Lite-On 82c168 PNIC", 256, 0x0001ebef, HAS_MII, pnic_timer },
+  { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98713,
+	"Macronix 98713 PMAC", 128, 0x0001ebef,
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, tulip_timer /* Tulip-like! */ },
+  { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98715,
+	"Macronix 98715 PMAC", 256, 0x0001ebef, HAS_MEDIA_TABLE, mxic_timer },
+  { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98725,
+	"Macronix 98725 PMAC", 256, 0x0001ebef, HAS_MEDIA_TABLE, mxic_timer },
+  { 0x125B, 0x1400, "ASIX AX88140", 128, 0x0001fbff,
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, tulip_timer },
+  {0, 0, 0, 0},
+};
+/* This matches the table above. */
+enum chips { DC21040=0, DC21041=1, DC21140=2, DC21142=3, DC21143=3,
+			 LC82C168, MX98713, MX98715, MX98725};
+
+/* A full-duplex map for media types. */
+enum MediaIs {MediaIsFD = 1, MediaAlwaysFD=2, MediaIsMII=4, MediaIsFx=8,
+		  MediaIs100=16};
+static const char media_cap[] =
+{0,0,0,16,  3,19,16,24,  27,4,7,5, 0,20,23,20 };
+/* 21041 transceiver register settings: 10-T, 10-2, AUI, 10-T, 10T-FD*/
+static u16 t21041_csr13[] = { 0xEF05, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
+static u16 t21041_csr14[] = { 0x7F3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
+static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+static u16 t21142_csr14[] = { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+/* Offsets to the Command and Status Registers, "CSRs".  All accesses
+   must be longword instructions and quadword aligned. */
+enum tulip_offsets {
+	CSR0=0,    CSR1=0x08, CSR2=0x10, CSR3=0x18, CSR4=0x20, CSR5=0x28,
+	CSR6=0x30, CSR7=0x38, CSR8=0x40, CSR9=0x48, CSR10=0x50, CSR11=0x58,
+	CSR12=0x60, CSR13=0x68, CSR14=0x70, CSR15=0x78 };
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+	TimerInt=0x800, TPLnkFail=0x1000, TPLnkPass=0x10,
+	NormalIntr=0x10000, AbnormalIntr=0x8000,
+	RxJabber=0x200, RxDied=0x100, RxNoBuf=0x80, RxIntr=0x40,
+	TxFIFOUnderflow=0x20, TxJabber=0x08, TxNoBuf=0x04, TxDied=0x02, TxIntr=0x01,
+};
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct tulip_rx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1, buffer2;
+};
+
+struct tulip_tx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1, buffer2;				/* We use only buffer 1.  */
+};
+
+struct medialeaf {
+	u8 type;
+	u8 media;
+	unsigned char *leafdata;
+};
+
+struct mediatable {
+	u16 defaultmedia;
+	u8 leafcount, csr12dir;				/* General purpose pin directions. */
+	unsigned has_mii:1, has_nonmii:1;
+	struct medialeaf mleaf[0];
+};
+
+struct mediainfo {
+	struct mediainfo *next;
+	int info_type;
+	int index;
+	unsigned char *info;
+};
+
+struct tulip_private {
+	char devname[8];			/* Used only for kernel debugging. */
+	const char *product_name;
+	struct device *next_module;
+	struct tulip_rx_desc rx_ring[RX_RING_SIZE];
+	struct tulip_tx_desc tx_ring[TX_RING_SIZE];
+	/* The saved address of a sent-in-place packet/buffer, for skfree(). */
+	struct sk_buff* tx_skbuff[TX_RING_SIZE];
+	/* The addresses of receive-in-place skbuffs. */
+	struct sk_buff* rx_skbuff[RX_RING_SIZE];
+	char *rx_buffs;				/* Address of temporary Rx buffers. */
+	u32 setup_frame[48];		/* Pseudo-Tx frame to init address table. */
+	int chip_id;
+	int revision;
+#if LINUX_VERSION_CODE > 0x20139
+	struct net_device_stats stats;
+#else
+	struct enet_statistics stats;
+#endif
+	struct timer_list timer;	/* Media selection timer. */
+	int interrupt;				/* In-interrupt flag. */
+#ifdef SMP_CHECK
+	int smp_proc_id;			/* Which processor in IRQ handler. */
+#endif
+	unsigned int cur_rx, cur_tx;		/* The next free ring entry */
+	unsigned int dirty_rx, dirty_tx;	/* The ring entries to be free()ed. */
+	unsigned int tx_full:1;				/* The Tx queue is full. */
+	unsigned int full_duplex:1;			/* Full-duplex operation requested. */
+	unsigned int full_duplex_lock:1;
+	unsigned int fake_addr:1;			/* Multiport board faked address. */
+	unsigned int default_port:4;		/* Last dev->if_port value. */
+	unsigned int media2:4;				/* Secondary monitored media port. */
+	unsigned int medialock:1;			/* Don't sense media type. */
+	unsigned int mediasense:1;			/* Media sensing in progress. */
+	unsigned int csr6;					/* Current CSR6 control settings. */
+	unsigned char eeprom[128];			/* Serial EEPROM contents. */
+	u16 to_advertise;					/* NWay capabilities advertised.  */
+	u16 advertising[4];
+	signed char phys[4], mii_cnt;		/* MII device addresses. */
+	struct mediatable *mtable;
+	int cur_index;						/* Current media index. */
+	unsigned char pci_bus, pci_dev_fn;
+	int pad0, pad1;						/* Used for 8-byte alignment */
+};
+
+static struct device *tulip_probe1(int pci_bus, int pci_devfn,
+								   struct device *dev,
+								   int chip_id, int options);
+static void parse_eeprom(struct device *dev);
+static int read_eeprom(long ioaddr, int location);
+static int mdio_read(struct device *dev, int phy_id, int location);
+static void mdio_write(struct device *dev, int phy_id, int location, int value);
+static void select_media(struct device *dev, int startup);
+static int tulip_open(struct device *dev);
+static void tulip_timer(unsigned long data);
+static void tulip_tx_timeout(struct device *dev);
+static void tulip_init_ring(struct device *dev);
+static int tulip_start_xmit(struct sk_buff *skb, struct device *dev);
+static int tulip_rx(struct device *dev);
+static void tulip_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs);
+static int tulip_close(struct device *dev);
+static struct enet_statistics *tulip_get_stats(struct device *dev);
+#ifdef HAVE_PRIVATE_IOCTL
+static int private_ioctl(struct device *dev, struct ifreq *rq, int cmd);
+#endif
+#ifdef NEW_MULTICAST
+static void set_rx_mode(struct device *dev);
+#else
+static void set_rx_mode(struct device *dev, int num_addrs, void *addrs);
+#endif
+
+
+
+/* A list of all installed Tulip devices, for removing the driver module. */
+static struct device *root_tulip_dev = NULL;
+
+/* This 21040 probe no longer uses a large fixed contiguous Rx buffer region,
+   but now receives directly into full-sized skbuffs that are allocated
+   at open() time.
+   This allows the probe routine to use the old driver initialization
+   interface. */
+
+int tulip_probe(struct device *dev)
+{
+	int cards_found = 0;
+	static int pci_index = 0;	/* Static, for multiple probe calls. */
+	unsigned char pci_bus, pci_device_fn;
+
+	/* Ideally we would detect all network cards in slot order.  That would
+	   be best done a central PCI probe dispatch, which wouldn't work
+	   well with the current structure.  So instead we detect just the
+	   Tulip cards in slot order. */
+
+#if LINUX_VERSION_CODE >= 0x20155
+	if (! pci_present())
+		return -ENODEV;
+#else
+	if (! pcibios_present())
+		return -ENODEV;
+#endif
+	for (;pci_index < 0xff; pci_index++) {
+		u16 vendor, device, pci_command, new_command;
+		u32 pci_ioaddr;
+		int chip_idx = 0;
+
+		if (pcibios_find_class
+			(PCI_CLASS_NETWORK_ETHERNET << 8,
+			 reverse_probe ? 0xfe - pci_index : pci_index,
+			 &pci_bus, &pci_device_fn) != PCIBIOS_SUCCESSFUL)
+			if (reverse_probe)
+				continue;
+			else
+				break;
+		pcibios_read_config_word(pci_bus, pci_device_fn,
+								 PCI_VENDOR_ID, &vendor);
+		pcibios_read_config_word(pci_bus, pci_device_fn,
+								 PCI_DEVICE_ID, &device);
+
+		for (chip_idx = 0; tulip_tbl[chip_idx].chip_name; chip_idx++)
+			if (vendor == tulip_tbl[chip_idx].vendor_id  &&
+				device == tulip_tbl[chip_idx].device_id)
+				break;
+		if (tulip_tbl[chip_idx].chip_name == 0) {
+			if (vendor == PCI_VENDOR_ID_DEC  ||
+				vendor == PCI_VENDOR_ID_LITEON)
+				printk(KERN_INFO "Unknown Tulip-style PCI ethernet chip type"
+					   " %4.4x %4.4x"" detected: not configured.\n",
+					   vendor, device);
+			continue;
+		}
+#if LINUX_VERSION_CODE >= 0x20155
+		pci_ioaddr = pci_find_slot(pci_bus, pci_device_fn)->base_address[0];
+#else
+		pcibios_read_config_dword(pci_bus, pci_device_fn, PCI_BASE_ADDRESS_0,
+								  &pci_ioaddr);
+#endif
+		/* Remove I/O space marker in bit 0. */
+		pci_ioaddr &= ~3;
+
+		if (tulip_debug > 2)
+			printk(KERN_DEBUG "Found %s at I/O %#x.\n",
+				   tulip_tbl[chip_idx].chip_name, pci_ioaddr);
+
+		if (check_region(pci_ioaddr, tulip_tbl[chip_idx].io_size))
+			continue;
+
+		pcibios_read_config_word(pci_bus, pci_device_fn,
+								 PCI_COMMAND, &pci_command);
+		new_command = pci_command | PCI_COMMAND_MASTER|PCI_COMMAND_IO;
+		if (pci_command != new_command) {
+			printk(KERN_INFO "  The PCI BIOS has not enabled this"
+				   " device!  Updating PCI command %4.4x->%4.4x.\n",
+				   pci_command, new_command);
+			pcibios_write_config_word(pci_bus, pci_device_fn,
+									  PCI_COMMAND, new_command);
+		}
+
+		dev = tulip_probe1(pci_bus, pci_device_fn, dev, chip_idx, cards_found);
+
+		/* Get and check the bus-master and latency values. */
+		if (dev) {
+			unsigned char pci_latency;
+			pcibios_read_config_byte(pci_bus, pci_device_fn,
+									 PCI_LATENCY_TIMER, &pci_latency);
+			if (pci_latency < 10) {
+				printk(KERN_INFO "  PCI latency timer (CFLT) is "
+					   "unreasonably low at %d.  Setting to 64 clocks.\n",
+					   pci_latency);
+				pcibios_write_config_byte(pci_bus, pci_device_fn,
+										  PCI_LATENCY_TIMER, 64);
+			} else if (tulip_debug > 1)
+				printk(KERN_INFO "  PCI latency timer (CFLT) is %#x, "
+					   " PCI command is %4.4x.\n",
+					   pci_latency, new_command);
+			/* Bring the 21143 out power-down mode. */
+			if (device == PCI_DEVICE_ID_DEC_TULIP_21142)
+				pcibios_write_config_dword(pci_bus, pci_device_fn,
+										   0x40, 0x40000000);
+			dev = 0;
+			cards_found++;
+		}
+	}
+
+	return cards_found ? 0 : -ENODEV;
+}
+
+static struct device *tulip_probe1(int pci_bus, int pci_device_fn,
+								   struct device *dev,
+								   int chip_id, int board_idx)
+{
+	static int did_version = 0;			/* Already printed version info. */
+	struct tulip_private *tp;
+	long ioaddr;
+	int irq;
+	/* See note below on the multiport cards. */
+	static unsigned char last_phys_addr[6] = {0x00, 'L', 'i', 'n', 'u', 'x'};
+	static int last_irq = 0;
+	static int multiport_cnt = 0;		/* For four-port boards w/one EEPROM */
+	int i;
+	unsigned short sum;
+
+	if (tulip_debug > 0  &&  did_version++ == 0)
+		printk(KERN_INFO "%s", version);
+
+	dev = init_etherdev(dev, 0);
+
+#if LINUX_VERSION_CODE >= 0x20155
+	irq = pci_find_slot(pci_bus, pci_device_fn)->irq;
+	ioaddr = pci_find_slot(pci_bus, pci_device_fn)->base_address[0];
+#else
+	{
+		u8 pci_irq_line;
+		u32 pci_ioaddr;
+		pcibios_read_config_byte(pci_bus, pci_device_fn,
+								 PCI_INTERRUPT_LINE, &pci_irq_line);
+		pcibios_read_config_dword(pci_bus, pci_device_fn, PCI_BASE_ADDRESS_0,
+								  &pci_ioaddr);
+		irq = pci_irq_line;
+		ioaddr = pci_ioaddr;
+	}
+#endif
+	/* Remove I/O space marker in bit 0. */
+	ioaddr &= ~3;
+
+	printk(KERN_INFO "%s: %s at %#3lx,",
+		   dev->name, tulip_tbl[chip_id].chip_name, ioaddr);
+
+	/* Stop the chip's Tx and Rx processes. */
+	outl(inl(ioaddr + CSR6) & ~0x2002, ioaddr + CSR6);
+	/* Clear the missed-packet counter. */
+	(volatile int)inl(ioaddr + CSR8);
+
+	if (chip_id == DC21041) {
+		if (inl(ioaddr + CSR9) & 0x8000) {
+			printk(" 21040 compatible mode,");
+			chip_id = DC21040;
+		} else {
+			printk(" 21041 mode,");
+		}
+	}
+
+	/* The station address ROM is read byte serially.  The register must
+	   be polled, waiting for the value to be read bit serially from the
+	   EEPROM.
+	   */
+	sum = 0;
+	if (chip_id == DC21040) {
+		outl(0, ioaddr + CSR9);		/* Reset the pointer with a dummy write. */
+		for (i = 0; i < 6; i++) {
+			int value, boguscnt = 100000;
+			do
+				value = inl(ioaddr + CSR9);
+			while (value < 0  && --boguscnt > 0);
+			dev->dev_addr[i] = value;
+			sum += value & 0xff;
+		}
+	} else if (chip_id == LC82C168) {
+		for (i = 0; i < 3; i++) {
+			int value, boguscnt = 100000;
+			outl(0x600 | i, ioaddr + 0x98);
+			do
+				value = inl(ioaddr + CSR9);
+			while (value < 0  && --boguscnt > 0);
+			((u16*)dev->dev_addr)[i] = value;
+			sum += value & 0xffff;
+		}
+	} else {	/* Must be a new chip, with a serial EEPROM interface. */
+		/* We read the whole EEPROM, and sort it out later.  DEC has a
+		   specification _Digital Semiconductor 21X4 Serial ROM Format_
+		   but early vendor boards just put the address in the first six
+		   EEPROM locations. */
+		unsigned char ee_data[128];
+		int sa_offset = 0;
+
+		for (i = 0; i < sizeof(ee_data)/2; i++)
+			((u16 *)ee_data)[i] = read_eeprom(ioaddr, i);
+
+		/* Detect the simple EEPROM format by the duplicated station addr. */
+		for (i = 0; i < 8; i ++)
+			if (ee_data[i] != ee_data[16+i])
+				sa_offset = 20;
+		if (ee_data[0] == 0xff  &&  ee_data[1] == 0xff &&  ee_data[2] == 0) {
+			sa_offset = 2;		/* Grrr, damn Matrox boards. */
+			multiport_cnt = 4;
+		}
+		for (i = 0; i < 6; i ++) {
+			dev->dev_addr[i] = ee_data[i + sa_offset];
+			sum += ee_data[i + sa_offset];
+		}
+	}
+	/* Lite-On boards have the address byte-swapped. */
+	if (dev->dev_addr[0] == 0xA0  &&  dev->dev_addr[1] == 0x00)
+		for (i = 0; i < 6; i+=2) {
+			char tmp = dev->dev_addr[i];
+			dev->dev_addr[i] = dev->dev_addr[i+1];
+			dev->dev_addr[i+1] = tmp;
+		}
+	/* On the Zynx 315 Etherarray and other multiport boards only the
+	   first Tulip has an EEPROM.
+	   The addresses of the subsequent ports are derived from the first.
+	   Many PCI BIOSes also incorrectly report the IRQ line, so we correct
+	   that here as well. */
+	if (sum == 0  || sum == 6*0xff) {
+		printk(" EEPROM not present,");
+		for (i = 0; i < 5; i++)
+			dev->dev_addr[i] = last_phys_addr[i];
+		dev->dev_addr[i] = last_phys_addr[i] + 1;
+#if defined(__i386__)		/* This BIOS bug doesn't exist on Alphas. */
+		irq = last_irq;
+#endif
+	}
+
+	for (i = 0; i < 6; i++)
+		printk(" %2.2x", last_phys_addr[i] = dev->dev_addr[i]);
+	printk(", IRQ %d.\n", irq);
+	last_irq = irq;
+
+	/* We do a request_region() only to register /proc/ioports info. */
+	/* Note that proper size is tulip_tbl[chip_id].chip_name, but... */
+	request_region(ioaddr, TULIP_TOTAL_SIZE, dev->name);
+
+	dev->base_addr = ioaddr;
+	dev->irq = irq;
+
+	/* Make certain the data structures are quadword aligned. */
+	tp = (void *)(((long)kmalloc(sizeof(*tp), GFP_KERNEL | GFP_DMA) + 7) & ~7);
+	memset(tp, 0, sizeof(*tp));
+	dev->priv = tp;
+
+	tp->next_module = root_tulip_dev;
+	root_tulip_dev = dev;
+
+	tp->pci_bus = pci_bus;
+	tp->pci_dev_fn = pci_device_fn;
+	tp->chip_id = chip_id;
+
+#ifdef TULIP_FULL_DUPLEX
+	tp->full_duplex = 1;
+	tp->full_duplex_lock = 1;
+#endif
+#ifdef TULIP_DEFAULT_MEDIA
+	tp->default_port = TULIP_DEFAULT_MEDIA;
+#endif
+#ifdef TULIP_NO_MEDIA_SWITCH
+	tp->medialock = 1;
+#endif
+
+	/* The lower four bits are the media type. */
+	if (board_idx >= 0  &&  board_idx < MAX_UNITS) {
+		tp->default_port = options[board_idx] & 15;
+		if ((options[board_idx] & 0x90) || full_duplex[board_idx] > 0)
+			tp->full_duplex = 1;
+		if (mtu[board_idx] > 0)
+			dev->mtu = mtu[board_idx];
+	}
+	if (dev->mem_start)
+		tp->default_port = dev->mem_start;
+	if (tp->default_port) {
+		tp->medialock = 1;
+		if (media_cap[tp->default_port] & MediaAlwaysFD)
+			tp->full_duplex = 1;
+	}
+	if (tp->full_duplex)
+		tp->full_duplex_lock = 1;
+
+	/* This is logically part of probe1(), but too complex to write inline. */
+	if (tulip_tbl[chip_id].flags & HAS_MEDIA_TABLE)
+		parse_eeprom(dev);
+
+	if (media_cap[tp->default_port] & MediaIsMII) {
+		u16 media2advert[] = { 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 };
+		tp->to_advertise = media2advert[tp->default_port - 9];
+	} else
+		tp->to_advertise = 0x03e1;
+
+	if ((tp->mtable  &&  tp->mtable->has_mii) ||
+		( ! tp->mtable  &&  (tulip_tbl[tp->chip_id].flags & HAS_MII))) {
+		int phy, phy_idx;
+		/* Find the connected MII xcvrs.
+		   Doing this in open() would allow detecting external xcvrs later,
+		   but takes much time. */
+		for (phy = 0, phy_idx = 0; phy < 32 && phy_idx < sizeof(tp->phys);
+			 phy++) {
+			int mii_status = mdio_read(dev, phy, 1);
+			if (mii_status != 0xffff  &&  mii_status != 0x0000) {
+				int mii_reg0 = mdio_read(dev, phy, 0);
+				int reg4 = ((mii_status>>6) & tp->to_advertise) | 1;
+				tp->phys[phy_idx] = phy;
+				tp->advertising[phy_idx++] = reg4;
+				printk(KERN_INFO "%s:  MII transceiver found at MDIO address "
+					   "%d, config %4.4x status %4.4x.\n",
+					   dev->name, phy, mii_reg0, mii_status);
+				if (1 || (media_cap[tp->default_port] & MediaIsMII)) {
+					printk(KERN_DEBUG "%s:  Advertising %4.4x on PHY %d,"
+						   " previously advertising %4.4x.\n",
+						   dev->name, reg4, phy, mdio_read(dev, phy, 4));
+					mdio_write(dev, phy, 4, reg4);
+				}
+				/* Enable autonegotiation: some boards default to off. */
+				mdio_write(dev, phy, 0, mii_reg0 |
+						   (tp->full_duplex ? 0x1100 : 0x1000) |
+						   (media_cap[tp->default_port]&MediaIs100 ? 0x2000:0));
+			}
+		}
+		tp->mii_cnt = phy_idx;
+		if (tp->mtable  &&  tp->mtable->has_mii  &&  phy_idx == 0) {
+			printk(KERN_INFO "%s: ***WARNING***: No MII transceiver found!\n",
+				   dev->name);
+			tp->phys[0] = 1;
+		}
+	}
+
+	/* The Tulip-specific entries in the device structure. */
+	dev->open = &tulip_open;
+	dev->hard_start_xmit = &tulip_start_xmit;
+	dev->stop = &tulip_close;
+	dev->get_stats = &tulip_get_stats;
+#ifdef HAVE_PRIVATE_IOCTL
+	dev->do_ioctl = &private_ioctl;
+#endif
+#ifdef HAVE_MULTICAST
+	dev->set_multicast_list = &set_rx_mode;
+#endif
+
+	/* Reset the xcvr interface and turn on heartbeat. */
+	switch (chip_id) {
+	case DC21041:
+		outl(0x00000000, ioaddr + CSR13);
+		outl(0xFFFFFFFF, ioaddr + CSR14);
+		outl(0x00000008, ioaddr + CSR15); /* Listen on AUI also. */
+		outl(inl(ioaddr + CSR6) | 0x0200, ioaddr + CSR6);
+		outl(0x0000EF05, ioaddr + CSR13);
+		break;
+	case DC21040:
+		outl(0x00000000, ioaddr + CSR13);
+		outl(0x00000004, ioaddr + CSR13);
+		break;
+	case DC21140: default:
+		if (tp->mtable)
+			outl(tp->mtable->csr12dir | 0x100, ioaddr + CSR12);
+		break;
+	case DC21142:
+		outl(0x82420200, ioaddr + CSR6);
+		outl(0x0001, ioaddr + CSR13);
+		outl(0x0003FFFF, ioaddr + CSR14);
+		outl(0x0008, ioaddr + CSR15);
+		outl(0x0001, ioaddr + CSR13);
+		outl(0x1301, ioaddr + CSR12); /* Start NWay. */
+		break;
+	case LC82C168:
+		if ( ! tp->mii_cnt) {
+			outl(0x00420000, ioaddr + CSR6);
+			outl(0x30, ioaddr + CSR12);
+			outl(0x0001F078, ioaddr + 0xB8);
+			outl(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
+		}
+		break;
+	case MX98713: case MX98715: case MX98725:
+		outl(0x00000000, ioaddr + CSR6);
+		outl(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */
+		outl(0x00000001, ioaddr + CSR13);
+		break;
+	}
+
+	return dev;
+}
+
+/* Serial EEPROM section. */
+/* The main routine to parse the very complicated SROM structure.
+   Search www.digital.com for "21X4 SROM" to get details.
+   This code is very complex, and will require changes to support
+   additional cards, so I'll be verbose about what is going on.
+   */
+
+/* Known cards that have old-style EEPROMs. */
+static struct fixups {
+  char *name;
+  unsigned char addr0, addr1, addr2;
+  u16 newtable[32];				/* Max length below. */
+} eeprom_fixups[] = {
+  {"Asante", 0, 0, 0x94, {0x1e00, 0x0000, 0x0800, 0x0100, 0x018c,
+						  0x0000, 0x0000, 0xe078, 0x0001, 0x0050, 0x0018 }},
+  {"SMC9332DST", 0, 0, 0xC0, { 0x1e00, 0x0000, 0x0800, 0x021f,
+							   0x0000, 0x009E, /* 10baseT */
+							   0x0903, 0x006D, /* 100baseTx */ }},
+  {"Cogent EM100", 0, 0, 0x92, { 0x1e00, 0x0000, 0x0800, 0x033f,
+								 0x0107, 0x8021, /* 100baseFx */
+								 0x0108, 0x8021, /* 100baseFx-FD */
+								 0x0103, 0x006D, /* 100baseTx */ }},
+  {"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0313,
+							   0x1001, 0x009E, /* 10base2, CSR12 0x10*/
+							   0x0000, 0x009E, /* 10baseT */
+							   0x0303, 0x006D, /* 100baseTx, CSR12 0x03 */ }},
+  {"Accton EN1207", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x031F,
+							0x1B01, 0x0000, /* 10base2,   CSR12 0x1B */
+							0x1B03, 0x006D, /* 100baseTx, CSR12 0x1B */ 
+							0x0B00, 0x009E, /* 10baseT,   CSR12 0x0B */
+   }},
+  {0, 0, 0, 0, {}}};
+
+static const char * block_name[] = {"21140 non-MII", "21140 MII PHY",
+ "21142 Serial PHY", "21142 MII PHY", "21143 SYM PHY", "21143 reset method"};
+
+#define EEPROM_SIZE 128
+#if defined(__i386__)
+#define get_u16(ptr) (*(u16 *)(ptr))
+#else
+#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
+#endif
+
+static void parse_eeprom(struct device *dev)
+{
+	/* The last media info list parsed, for multiport boards.  */
+	static struct mediatable *last_mediatable = NULL;
+	static unsigned char *last_ee_data = NULL;
+	static int controller_index = 0;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	unsigned char *ee_data = tp->eeprom;
+	int i;
+
+	tp->mtable = 0;
+	for (i = 0; i < EEPROM_SIZE/2; i++)
+		((u16 *)ee_data)[i] = read_eeprom(ioaddr, i);
+
+	/* Detect an old-style (SA only) EEPROM layout:
+	   memcmp(eedata, eedata+16, 8). */
+	for (i = 0; i < 8; i ++)
+		if (ee_data[i] != ee_data[16+i])
+			break;
+	if (i >= 8) {
+		if (ee_data[0] == 0xff) {
+			if (last_mediatable) {
+				controller_index++;
+				printk(KERN_INFO "%s:  Controller %d of multiport board.\n",
+					   dev->name, controller_index);
+				tp->mtable = last_mediatable;
+				ee_data = last_ee_data;
+				goto subsequent_board;
+			} else
+				printk(KERN_INFO "%s:  Missing EEPROM, this interface may "
+					   "not work correctly!\n",
+			   dev->name);
+			return;
+		}
+	  /* Do a fix-up based on the vendor half of the station address prefix. */
+	  for (i = 0; eeprom_fixups[i].name; i++) {
+		if (dev->dev_addr[0] == eeprom_fixups[i].addr0
+			&&  dev->dev_addr[1] == eeprom_fixups[i].addr1
+			&&  dev->dev_addr[2] == eeprom_fixups[i].addr2) {
+		  if (dev->dev_addr[2] == 0xE8  &&  ee_data[0x1a] == 0x55)
+			  i++;			/* An Accton EN1207, not an outlaw Maxtech. */
+		  memcpy(ee_data + 26, eeprom_fixups[i].newtable,
+				 sizeof(eeprom_fixups[i].newtable));
+		  printk(KERN_INFO "%s: Old format EEPROM on '%s' board.  Using"
+				 " substitute media control info.\n",
+				 dev->name, eeprom_fixups[i].name);
+		  break;
+		}
+	  }
+	  if (eeprom_fixups[i].name == NULL) { /* No fixup found. */
+		printk(KERN_INFO "%s: Old style EEPROM -- no media selection information.\n",
+			   dev->name);
+		return;
+	  }
+	}
+	if (tulip_debug > 1) {
+	  printk(KERN_DEBUG "read_eeprom:");
+	  for (i = 0; i < 64; i++) {
+		printk("%s%4.4x", (i & 7) == 0 ? "\n" KERN_DEBUG : " ",
+			   read_eeprom(ioaddr, i));
+	  }
+	  printk("\n");
+	}
+	
+	controller_index = 0;
+	if (ee_data[19] > 1) {		/* Multiport board. */
+		last_ee_data = ee_data;
+	}
+subsequent_board:
+
+	if (ee_data[27] == 0) {		/* No valid media table. */
+	} else if (tp->chip_id == DC21041) {
+		unsigned char *p = (void *)ee_data + ee_data[27 + controller_index*3];
+		short media;
+		int count;
+
+		media = get_u16(p);
+		p += 2;
+		count = *p++;
+
+		printk(KERN_INFO "%s:21041 Media information at %d, default media "
+			   "%4.4x (%s).\n", dev->name, ee_data[27], media,
+			   media & 0x0800 ? "Autosense" : medianame[media & 15]);
+		for (i = 0; i < count; i++) {
+			unsigned char media_code = *p++;
+			u16 csrvals[3];
+			int idx;
+			for (idx = 0; idx < 3; idx++) {
+				csrvals[idx] = get_u16(p);
+				p += 2;
+			}
+			if (media_code & 0x40) {
+				printk(KERN_INFO "%s:  21041 media %2.2x (%s),"
+					   " csr13 %4.4x csr14 %4.4x csr15 %4.4x.\n",
+					   dev->name, media_code & 15, medianame[media_code & 15],
+					   csrvals[0], csrvals[1], csrvals[2]);
+			} else
+				printk(KERN_INFO "%s:  21041 media #%d, %s.\n",
+					   dev->name, media_code & 15, medianame[media_code & 15]);
+		}
+	} else {
+		unsigned char *p = (void *)ee_data + ee_data[27];
+		unsigned char csr12dir = 0;
+		int count;
+		struct mediatable *mtable;
+		u16 media = get_u16(p);
+
+		p += 2;
+		if (tulip_tbl[tp->chip_id].flags & CSR12_IN_SROM)
+			csr12dir = *p++;
+		count = *p++;
+		mtable = (struct mediatable *)
+			kmalloc(sizeof(struct mediatable) + count*sizeof(struct medialeaf),
+					GFP_KERNEL);
+		if (mtable == NULL)
+			return;				/* Horrible, impossible failure. */
+		last_mediatable = tp->mtable = mtable;
+		mtable->defaultmedia = media;
+		mtable->leafcount = count;
+		mtable->csr12dir = csr12dir;
+		mtable->has_nonmii = mtable->has_mii = 0;
+
+		printk(KERN_INFO "%s:  EEPROM default media type %s.\n", dev->name,
+			   media & 0x0800 ? "Autosense" : medianame[media & 15]);
+		for (i = 0; i < count; i++) {
+			struct medialeaf *leaf = &mtable->mleaf[i];
+			
+			if ((p[0] & 0x80) == 0) { /* 21140 Compact block. */
+				leaf->type = 0;
+				leaf->media = p[0] & 0x3f;
+				leaf->leafdata = p;
+				if ((p[2] & 0x61) == 0x01)	/* Bogus, but Znyx boards do it. */
+					mtable->has_mii = 1;
+				p += 4;
+			} else {
+				leaf->type = p[1];
+				if (p[1] & 1) {
+					mtable->has_mii = 1;
+					leaf->media = 11;
+				} else {
+					mtable->has_nonmii = 1;
+					leaf->media = p[2] & 0x0f;
+				}
+				leaf->leafdata = p + 2;
+				p += (p[0] & 0x3f) + 1;
+			}
+			if (tulip_debug > 1  &&  leaf->media == 11) {
+				unsigned char *bp = leaf->leafdata;
+				printk(KERN_INFO "%s:  MII interface PHY %d, setup/reset "
+					   "sequences %d/%d long, capabilities %2.2x %2.2x.\n",
+					   dev->name, bp[0], bp[1], bp[1 + bp[1]*2],
+					   bp[5 + bp[2 + bp[1]*2]*2], bp[4 + bp[2 + bp[1]*2]*2]);
+			}
+			printk(KERN_INFO "%s:  Index #%d - Media %s (#%d) described "
+				   "by a %s (%d) block.\n",
+				   dev->name, i, medianame[leaf->media], leaf->media,
+				   block_name[leaf->type], leaf->type);
+		}
+	}
+}
+/* Reading a serial EEPROM is a "bit" grungy, but we work our way through:->.*/
+
+/*  EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK	0x02	/* EEPROM shift clock. */
+#define EE_CS			0x01	/* EEPROM chip select. */
+#define EE_DATA_WRITE	0x04	/* EEPROM chip data in. */
+#define EE_WRITE_0		0x01
+#define EE_WRITE_1		0x05
+#define EE_DATA_READ	0x08	/* EEPROM chip data out. */
+#define EE_ENB			(0x4800 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+   The 1.2 code is a "nasty" timing loop, but PC compatible machines are
+   *supposed* to delay an ISA-compatible period for the SLOW_DOWN_IO macro.  */
+#ifdef _LINUX_DELAY_H
+#define eeprom_delay(nanosec)	udelay((nanosec + 999)/1000)
+#else
+#define eeprom_delay(nanosec)	do { int _i = 3; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
+#endif
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD	(5 << 6)
+#define EE_READ_CMD		(6 << 6)
+#define EE_ERASE_CMD	(7 << 6)
+
+static int read_eeprom(long ioaddr, int location)
+{
+	int i;
+	unsigned short retval = 0;
+	long ee_addr = ioaddr + CSR9;
+	int read_cmd = location | EE_READ_CMD;
+	
+	outl(EE_ENB & ~EE_CS, ee_addr);
+	outl(EE_ENB, ee_addr);
+	
+	/* Shift the read command bits out. */
+	for (i = 10; i >= 0; i--) {
+		short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+		outl(EE_ENB | dataval, ee_addr);
+		eeprom_delay(100);
+		outl(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+		eeprom_delay(150);
+		outl(EE_ENB | dataval, ee_addr);	/* Finish EEPROM a clock tick. */
+		eeprom_delay(250);
+	}
+	outl(EE_ENB, ee_addr);
+	
+	for (i = 16; i > 0; i--) {
+		outl(EE_ENB | EE_SHIFT_CLK, ee_addr);
+		eeprom_delay(100);
+		retval = (retval << 1) | ((inl(ee_addr) & EE_DATA_READ) ? 1 : 0);
+		outl(EE_ENB, ee_addr);
+		eeprom_delay(100);
+	}
+
+	/* Terminate the EEPROM access. */
+	outl(EE_ENB & ~EE_CS, ee_addr);
+	return retval;
+}
+
+/* MII transceiver control section.
+   Read and write the MII registers using software-generated serial
+   MDIO protocol.  See the MII specifications or DP83840A data sheet
+   for details. */
+
+/* The maximum data clock rate is 2.5 Mhz.  The minimum timing is usually
+   met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+   "overclocking" issues or future 66Mhz PCI. */
+#define mdio_delay() inl(mdio_addr)
+
+/* Read and write the MII registers using software-generated serial
+   MDIO protocol.  It is just different enough from the EEPROM protocol
+   to not share code.  The maxium data clock rate is 2.5 Mhz. */
+#define MDIO_SHIFT_CLK	0x10000
+#define MDIO_DATA_WRITE0 0x00000
+#define MDIO_DATA_WRITE1 0x20000
+#define MDIO_ENB		0x00000		/* Ignore the 0x02000 databook setting. */
+#define MDIO_ENB_IN		0x40000
+#define MDIO_DATA_READ	0x80000
+
+static int mdio_read(struct device *dev, int phy_id, int location)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int i;
+	int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+	int retval = 0;
+	long mdio_addr = dev->base_addr + CSR9;
+
+	if (tp->chip_id == LC82C168) {
+		long ioaddr = dev->base_addr;
+		int i = 1000;
+		outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
+		while (--i > 0)
+			if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000))
+				return retval & 0xffff;
+		return 0xffff;
+	}
+
+	/* Establish sync by sending at least 32 logic ones. */ 
+	for (i = 32; i >= 0; i--) {
+		outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+		mdio_delay();
+		outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	/* Shift the read command bits out. */
+	for (i = 15; i >= 0; i--) {
+		int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+
+		outl(MDIO_ENB | dataval, mdio_addr);
+		mdio_delay();
+		outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	/* Read the two transition, 16 data, and wire-idle bits. */
+	for (i = 19; i > 0; i--) {
+		outl(MDIO_ENB_IN, mdio_addr);
+		mdio_delay();
+		retval = (retval << 1) | ((inl(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
+		outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	return (retval>>1) & 0xffff;
+}
+
+static void mdio_write(struct device *dev, int phy_id, int location, int value)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int i;
+	int cmd = (0x5002 << 16) | (phy_id << 23) | (location<<18) | value;
+	long mdio_addr = dev->base_addr + CSR9;
+
+	if (tp->chip_id == LC82C168) {
+		long ioaddr = dev->base_addr;
+		int i = 1000;
+		outl(cmd, ioaddr + 0xA0);
+		do
+			if ( ! (inl(ioaddr + 0xA0) & 0x80000000))
+				break;
+		while (--i > 0);
+		return;
+	}
+
+	/* Establish sync by sending 32 logic ones. */ 
+	for (i = 32; i >= 0; i--) {
+		outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+		mdio_delay();
+		outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	/* Shift the command bits out. */
+	for (i = 31; i >= 0; i--) {
+		int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+		outl(MDIO_ENB | dataval, mdio_addr);
+		mdio_delay();
+		outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	/* Clear out extra bits. */
+	for (i = 2; i > 0; i--) {
+		outl(MDIO_ENB_IN, mdio_addr);
+		mdio_delay();
+		outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+		mdio_delay();
+	}
+	return;
+}
+
+
+static int
+tulip_open(struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	int i = 0;
+
+	/* On some chip revs we must set the MII/SYM port before the reset!? */
+	if (tp->mii_cnt  ||  (tp->mtable  &&  tp->mtable->has_mii))
+		outl(0x00040000, ioaddr + CSR6);
+
+	/* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
+	outl(0x00000001, ioaddr + CSR0);
+#ifdef _LINUX_DELAY_H
+	udelay(2);
+#else
+	SLOW_DOWN_IO;
+#endif
+	/* Deassert reset.
+	   486: Set 8 longword cache alignment, 8 longword burst.
+	   586: Set 16 longword cache alignment, no burst limit.
+	   Cache alignment bits 15:14	     Burst length 13:8
+		0000	No alignment  0x00000000 unlimited		0800 8 longwords
+		4000	8  longwords		0100 1 longword		1000 16 longwords
+		8000	16 longwords		0200 2 longwords	2000 32 longwords
+		C000	32  longwords		0400 4 longwords
+	   Wait the specified 50 PCI cycles after a reset by initializing
+	   Tx and Rx queues and the address filter list. */
+#if defined(__alpha__)
+	/* ToDo: Alpha setting could be better. */
+	outl(0x01A00000 | 0xE000, ioaddr + CSR0);
+#elif defined(__powerpc__)
+	outl(0x01A00080 | 0x8000, ioaddr + CSR0);
+#elif defined(__i386__)
+#if defined(MODULE)
+	/* When a module we don't have 'x86' to check. */
+	outl(0x01A00000 | 0x4800, ioaddr + CSR0);
+#else
+#if (LINUX_VERSION_CODE > 0x2014c)
+#define x86 boot_cpu_data.x86
+#endif
+	outl(0x01A00000 | (x86 <= 4 ? 0x4800 : 0x8000), ioaddr + CSR0);
+	if (x86 <= 4)
+	  printk(KERN_INFO "%s: This is a 386/486 PCI system, setting cache "
+			 "alignment to %x.\n", dev->name,
+			 0x01A00000 | (x86 <= 4 ? 0x4800 : 0x8000));
+#endif
+#else
+	outl(0x01A00000 | 0x4800, ioaddr + CSR0);
+#warning Processor architecture undefined!
+#endif
+
+#ifdef SA_SHIRQ
+	if (request_irq(dev->irq, &tulip_interrupt, SA_SHIRQ, dev->name, dev)) {
+		return -EAGAIN;
+	}
+#else
+	if (irq2dev_map[dev->irq] != NULL
+		|| (irq2dev_map[dev->irq] = dev) == NULL
+		|| dev->irq == 0
+		|| request_irq(dev->irq, &tulip_interrupt, 0,
+					   tulip_tbl[tp->chip_id].chip_name)) {
+		return -EAGAIN;
+	}
+#endif
+
+	if (tulip_debug > 1)
+		printk(KERN_DEBUG "%s: tulip_open() irq %d.\n", dev->name, dev->irq);
+
+	MOD_INC_USE_COUNT;
+
+	tulip_init_ring(dev);
+
+	/* This is set_rx_mode(), but without starting the transmitter. */
+	/* Fill the whole address filter table with our physical address. */
+	{
+		u16 *eaddrs = (u16 *)dev->dev_addr;
+		u32 *setup_frm = tp->setup_frame, i;
+
+		/* You must add the broadcast address when doing perfect filtering! */
+		*setup_frm++ = 0xffff;
+		*setup_frm++ = 0xffff;
+		*setup_frm++ = 0xffff;
+		/* Fill the rest of the accept table with our physical address. */
+		for (i = 1; i < 16; i++) {
+			*setup_frm++ = eaddrs[0];
+			*setup_frm++ = eaddrs[1];
+			*setup_frm++ = eaddrs[2];
+		}
+		/* Put the setup frame on the Tx list. */
+		tp->tx_ring[0].length = 0x08000000 | 192;
+		tp->tx_ring[0].buffer1 = virt_to_bus(tp->setup_frame);
+		tp->tx_ring[0].status = 0x80000000;
+
+		tp->cur_tx++;
+	}
+
+	outl(virt_to_bus(tp->rx_ring), ioaddr + CSR3);
+	outl(virt_to_bus(tp->tx_ring), ioaddr + CSR4);
+
+	if (dev->if_port == 0)
+		dev->if_port = tp->default_port;
+	if (tp->chip_id == DC21041  &&  dev->if_port > 4)
+		/* Invalid: Select initial TP, autosense, autonegotiate.  */
+		dev->if_port = 4;
+
+	/* Allow selecting a default media. */
+	if (tp->mtable == NULL)
+		goto media_picked;
+	if (dev->if_port) {
+		int looking_for = media_cap[dev->if_port] & MediaIsMII ? 11 :
+			(dev->if_port == 12 ? 0 : dev->if_port);
+		for (i = 0; i < tp->mtable->leafcount; i++)
+			if (tp->mtable->mleaf[i].media == looking_for) {
+				printk(KERN_INFO "%s: Using user-specified media %s.\n",
+					   dev->name, medianame[dev->if_port]);
+				goto media_picked;
+			}
+	}
+	if ((tp->mtable->defaultmedia & 0x0800) == 0)
+		for (i = 0; i < tp->mtable->leafcount; i++)
+		  if (tp->mtable->mleaf[i].media == (tp->mtable->defaultmedia & 15)) {
+			printk(KERN_INFO "%s: Using EEPROM-set media %s.\n",
+				   dev->name, medianame[tp->mtable->mleaf[i].media]);
+			goto media_picked;
+		  }
+	/* Start sensing first non-full-duplex media. */
+	for (i = tp->mtable->leafcount - 1;
+		 (media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
+	  ;
+media_picked:
+
+	tp->csr6 = 0;
+	tp->cur_index = i;
+	if (dev->if_port == 0  &&  tp->chip_id == DC21142) {
+		tp->csr6 = 0x82420200;
+		outl(0x0003FFFF, ioaddr + CSR14);
+		outl(0x0008, ioaddr + CSR15);
+		outl(0x0001, ioaddr + CSR13);
+		outl(0x1301, ioaddr + CSR12);
+	} else if (tp->chip_id == LC82C168  &&  tp->mii_cnt && ! tp->medialock) {
+		dev->if_port = 11;
+		tp->csr6 = 0x816C0000 | (tp->full_duplex ? 0x0200 : 0);
+		outl(0x0001, ioaddr + CSR15);
+	} else
+		select_media(dev, 1);
+
+	/* Start the chip's Tx to process setup frame. */
+	outl(tp->csr6, ioaddr + CSR6);
+	outl(tp->csr6 | 0x2000, ioaddr + CSR6);
+
+	dev->tbusy = 0;
+	tp->interrupt = 0;
+	dev->start = 1;
+
+	/* Enable interrupts by setting the interrupt mask. */
+	outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
+	outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+	outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+	outl(0, ioaddr + CSR2);		/* Rx poll demand */
+
+	if (tulip_debug > 2) {
+		printk(KERN_DEBUG "%s: Done tulip_open(), CSR0 %8.8x, CSR5 %8.8x CSR6 %8.8x.\n",
+			   dev->name, inl(ioaddr + CSR0), inl(ioaddr + CSR5),
+			   inl(ioaddr + CSR6));
+	}
+	/* Set the timer to switch to check for link beat and perhaps switch
+	   to an alternate media type. */
+	init_timer(&tp->timer);
+	tp->timer.expires = RUN_AT(5*HZ);
+	tp->timer.data = (unsigned long)dev;
+	tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+	add_timer(&tp->timer);
+
+	return 0;
+}
+
+/* Set up the transceiver control registers for the selected media type. */
+static void select_media(struct device *dev, int startup)
+{
+	long ioaddr = dev->base_addr;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	struct mediatable *mtable = tp->mtable;
+	u32 new_csr6;
+	int check_mii =0, i;
+
+	if (mtable) {
+		struct medialeaf *mleaf = &mtable->mleaf[tp->cur_index];
+		unsigned char *p = mleaf->leafdata;
+		switch (mleaf->type) {
+		case 0:					/* 21140 non-MII xcvr. */
+			if (tulip_debug > 1)
+				printk(KERN_DEBUG "%s: Using a 21140 non-MII transceiver"
+					   " with control setting %2.2x.\n",
+					   dev->name, p[1]);
+			dev->if_port = p[0];
+			if (startup)
+				outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
+			outl(p[1], ioaddr + CSR12);
+			new_csr6 = 0x02000000 | ((p[2] & 0x71) << 18);
+			break;
+		case 2: case 4: {
+			u16 setup[3];
+			for (i = 0; i < 3; i++)
+				setup[i] = get_u16(&p[i*2 + 1]);
+
+			dev->if_port = p[0] & 15;
+			if (tulip_debug > 1)
+				printk(KERN_DEBUG "%s: 21142 non-MII %s transceiver control %4.4x/%4.4x.\n",
+					   dev->name, medianame[dev->if_port], setup[0], setup[1]);
+			if (p[0] & 0x40) {	/* SIA (CSR13-15) setup values are provided. */
+				outl(0, ioaddr + CSR13);
+				outl(setup[1], ioaddr + CSR14);
+				outl(setup[2], ioaddr + CSR15);
+				outl(setup[0], ioaddr + CSR13);
+				for (i = 0; i < 3; i++)			/* Re-fill setup[]  */
+					setup[i] = get_u16(&p[i*2 + 7]);
+			} else if (dev->if_port <= 4) {
+				outl(0, ioaddr + CSR13);
+				outl(t21142_csr14[dev->if_port], ioaddr + CSR14);
+				outl(t21142_csr15[dev->if_port], ioaddr + CSR15);
+				outl(t21142_csr13[dev->if_port], ioaddr + CSR13);
+			} else {
+				outl(0, ioaddr + CSR14);
+				outl(8, ioaddr + CSR15);
+				outl(0, ioaddr + CSR13);
+			}
+			outl(setup[0]<<16, ioaddr + CSR15);	/* Direction */
+			outl(setup[1]<<16, ioaddr + CSR15);	/* Data */
+			if (mleaf->type == 4)
+				new_csr6 = 0x82020000 | ((setup[2] & 0x71) << 18);
+			else
+				new_csr6 = 0x82420000;
+			break;
+		}
+		case 1: case 3: {
+			int phy_num = p[0];
+			int init_length = p[1];
+			u16 *misc_info;
+			u16 to_advertise;
+
+			dev->if_port = 11;
+			check_mii = 1;
+			new_csr6 = 0x020E0000;
+			if (mleaf->type == 3) {	/* 21142 */
+				u16 *init_sequence = (u16*)(p+2);
+				u16 *reset_sequence = &((u16*)(p+3))[init_length];
+				int reset_length = p[2 + init_length*2];
+				misc_info = reset_sequence + reset_length;
+				if (startup)
+					for (i = 0; i < reset_length; i++)
+						outl(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
+				for (i = 0; i < init_length; i++)
+					outl(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
+			} else {
+				u8 *init_sequence = p + 2;
+				u8 *reset_sequence = p + 3 + init_length;
+				int reset_length = p[2 + init_length];
+				misc_info = (u16*)(reset_sequence + reset_length);
+				if (startup) {
+					outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
+					for (i = 0; i < reset_length; i++)
+						outl(reset_sequence[i], ioaddr + CSR12);
+				}
+				for (i = 0; i < init_length; i++)
+					outl(init_sequence[i], ioaddr + CSR12);
+			}
+			to_advertise = (get_u16(&misc_info[1]) & tp->to_advertise) | 1;
+			tp->advertising[phy_num] = to_advertise;
+			if (tulip_debug > 1 || 1)
+				printk(KERN_DEBUG "%s:  Advertising %4.4x on PHY %d (%d).\n",
+					   dev->name, to_advertise, phy_num, tp->phys[phy_num]);
+			/* Bogus: put in by a committee?  */
+			mdio_write(dev, tp->phys[phy_num], 4, to_advertise);
+			break;
+		}
+		default:
+		  new_csr6 = 0x020E0000;
+		}
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: Using media type %s, CSR12 is %2.2x.\n",
+				   dev->name, medianame[dev->if_port],
+				   inl(ioaddr + CSR12) & 0xff);
+	} else if (tp->chip_id == DC21041) {
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: 21041 using media %s, CSR12 is %4.4x.\n",
+				   dev->name, medianame[dev->if_port & 15],
+				   inl(ioaddr + CSR12) & 0xffff);
+		outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
+		outl(t21041_csr14[dev->if_port], ioaddr + CSR14);
+		outl(t21041_csr15[dev->if_port], ioaddr + CSR15);
+		outl(t21041_csr13[dev->if_port], ioaddr + CSR13);
+		new_csr6 = 0x80020000;
+	} else if (tp->chip_id == LC82C168) {
+		if (startup && ! tp->medialock)
+			dev->if_port = tp->mii_cnt ? 11 : 0;
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: PNIC PHY status is %3.3x, CSR12 %4.4x,"
+				   " media %s.\n",
+				   dev->name, inl(ioaddr + 0xB8), inl(ioaddr + CSR12),
+				   medianame[dev->if_port]);
+		if (tp->mii_cnt) {
+			new_csr6 = 0x812C0000;
+			outl(0x0001, ioaddr + CSR15);
+			outl(0x0201B07A, ioaddr + 0xB8);
+		} else if (startup) {
+			/* Start with 10mbps to do autonegotiation. */
+			outl(0x32, ioaddr + CSR12);
+			new_csr6 = 0x00420000;
+			outl(0x0001B078, ioaddr + 0xB8);
+			outl(0x0201B078, ioaddr + 0xB8);
+		} else if (dev->if_port == 3  ||  dev->if_port == 5) {
+			outl(0x33, ioaddr + CSR12);
+			new_csr6 = 0x01860000;
+			if (startup)
+				outl(0x0201F868, ioaddr + 0xB8); /* Trigger autonegotiation. */
+			else
+				outl(0x1F868, ioaddr + 0xB8);
+		} else {
+			outl(0x32, ioaddr + CSR12);
+			new_csr6 = 0x00420000;
+			outl(0x1F078, ioaddr + 0xB8);
+		}
+	} else if (tp->chip_id == DC21040) {					/* 21040 */
+		/* Turn on the xcvr interface. */
+		int csr12 = inl(ioaddr + CSR12);
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: 21040 media type is %s, CSR12 is %2.2x.\n",
+				   dev->name, dev->if_port ? "AUI" : "10baseT", csr12);
+		new_csr6 = (dev->if_port ? 0x01860000 : 0x00420000);
+		/* Set the full duplux match frame. */
+		outl(FULL_DUPLEX_MAGIC, ioaddr + CSR11);
+		outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
+		outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+	} else {					/* Unknown chip type with no media table. */
+		if (tp->default_port == 0)
+			if (tp->mii_cnt) {
+				dev->if_port = 11;
+			} else
+				dev->if_port = 3;
+		if (media_cap[dev->if_port] & MediaIsMII) {
+			new_csr6 = 0x020E0000;
+		} else if (media_cap[dev->if_port] & MediaIsFx) {
+			new_csr6 = 0x028600000;
+		} else
+			new_csr6 = 0x038600000;
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: No media description table, assuming "
+				   "%s transceiver, CSR12 %2.2x.\n",
+				   dev->name, medianame[dev->if_port],
+				   inl(ioaddr + CSR12));
+	}
+
+	tp->csr6 = new_csr6 | (tp->csr6 & 0xfdff) | (tp->full_duplex ? 0x0200 : 0);
+	return;
+}
+
+static void tulip_timer(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	u32 csr12 = inl(ioaddr + CSR12);
+	int next_tick = 0;
+
+	if (tulip_debug > 3) {
+		printk(KERN_DEBUG "%s: Media selection tick, status %8.8x mode %8.8x "
+			   "SIA %8.8x %8.8x %8.8x %8.8x.\n",
+			   dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR6),
+			   csr12, inl(ioaddr + CSR13),
+			   inl(ioaddr + CSR14), inl(ioaddr + CSR15));
+	}
+	switch (tp->chip_id) {
+	case DC21040:
+		if (csr12 & 0x0002) { /* Network error */
+			printk(KERN_INFO "%s: No 10baseT link beat found, switching to %s media.\n",
+				   dev->name, dev->if_port ? "10baseT" : "AUI");
+			dev->if_port ^= 1;
+			outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+			dev->trans_start = jiffies;
+		}
+		break;
+	case DC21041:
+		if (tulip_debug > 2)
+			printk(KERN_DEBUG "%s: 21041 media tick  CSR12 %8.8x.\n",
+				   dev->name, csr12);
+		switch (dev->if_port) {
+		case 0: case 3: case 4:
+		  if (csr12 & 0x0004) { /*LnkFail */
+			/* 10baseT is dead.  Check for activity on alternate port. */
+			tp->mediasense = 1;
+			if (csr12 & 0x0200)
+				dev->if_port = 2;
+			else
+				dev->if_port = 1;
+			printk(KERN_INFO "%s: No 21041 10baseT link beat, Media switched to %s.\n",
+				   dev->name, medianame[dev->if_port]);
+			outl(0, ioaddr + CSR13); /* Reset */
+			outl(t21041_csr14[dev->if_port], ioaddr + CSR14);
+			outl(t21041_csr15[dev->if_port], ioaddr + CSR15);
+			outl(t21041_csr13[dev->if_port], ioaddr + CSR13);
+			next_tick = 10*HZ;			/* 2.4 sec. */
+		  } else
+			next_tick = 30*HZ;
+		  break;
+		case 1:					/* 10base2 */
+		case 2:					/* AUI */
+		  if (csr12 & 0x0100) {
+			next_tick = (30*HZ);			/* 30 sec. */
+			tp->mediasense = 0;
+		  } else if ((csr12 & 0x0004) == 0) {
+			printk(KERN_INFO "%s: 21041 media switched to 10baseT.\n", dev->name);
+			dev->if_port = 0;
+			select_media(dev, 0);
+			next_tick = (24*HZ)/10;				/* 2.4 sec. */
+		  } else if (tp->mediasense || (csr12 & 0x0002)) {
+			dev->if_port = 3 - dev->if_port; /* Swap ports. */
+			select_media(dev, 0);
+			next_tick = 20*HZ;
+		  } else {
+			next_tick = 20*HZ;
+		  }
+		  break;
+		}
+		break;
+	case DC21140:  case DC21142: case MX98713: default: {
+		struct medialeaf *mleaf;
+		unsigned char *p;
+		if (tp->mtable == NULL) {	/* No EEPROM info, use generic code. */
+			/* Not much that can be done.
+			   Assume this a generic MII or SYM transceiver. */
+			next_tick = 60*HZ;
+			if (tulip_debug > 2)
+				printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
+					   "CSR12 0x%2.2x.\n",
+					   dev->name, inl(ioaddr + CSR6), csr12 & 0xff);
+			break;
+		}
+		mleaf = &tp->mtable->mleaf[tp->cur_index];
+		p = mleaf->leafdata;
+		switch (mleaf->type) {
+		case 0: case 4: {
+			/* Type 0 serial or 4 SYM transceiver.  Check the link beat bit. */
+			int offset = mleaf->type == 4 ? 5 : 2;
+			s8 bitnum = p[offset];
+			if (p[offset+1] & 0x80) {
+				if (tulip_debug > 1)
+					printk(KERN_DEBUG"%s: Transceiver monitor tick "
+						   "CSR12=%#2.2x, no media sense.\n",
+						   dev->name, csr12);
+				if (mleaf->type == 4) {
+					if (mleaf->media == 3 && (csr12 & 0x02))
+						goto select_next_media;
+				}
+				break;
+			}
+			if (tulip_debug > 2)
+				printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
+					   " bit %d is %d, expecting %d.\n",
+					   dev->name, csr12, (bitnum >> 1) & 7,
+					   (csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
+					   (bitnum >= 0));
+			/* Check that the specified bit has the proper value. */
+			if ((bitnum < 0) !=
+				((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
+				if (tulip_debug > 1)
+					printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
+						   medianame[mleaf->media]);
+				if ((p[2] & 0x61) == 0x01)	/* Bogus Znyx board. */
+					goto actually_mii;
+				break;
+			}
+			if (tp->medialock)
+				break;
+	  select_next_media:
+			if (--tp->cur_index < 0) {
+				/* We start again, but should instead look for default. */
+				tp->cur_index = tp->mtable->leafcount - 1;
+			}
+			dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
+			if (media_cap[dev->if_port] & MediaIsFD)
+				goto select_next_media; /* Skip FD entries. */
+			if (tulip_debug > 1)
+				printk(KERN_DEBUG "%s: No link beat on media %s,"
+					   " trying transceiver type %s.\n",
+					   dev->name, medianame[mleaf->media & 15],
+					   medianame[tp->mtable->mleaf[tp->cur_index].media]);
+			select_media(dev, 0);
+			/* Restart the transmit process. */
+			outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+			outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+			next_tick = (24*HZ)/10;
+			break;
+		}
+		case 1:  case 3: {		/* 21140, 21142 MII */
+			int mii_reg1, mii_reg5;
+		actually_mii:
+			mii_reg1 = mdio_read(dev, tp->phys[0], 1);
+			mii_reg5 = mdio_read(dev, tp->phys[0], 5);
+			if (tulip_debug > 1)
+				printk(KERN_INFO "%s: MII status %4.4x, Link partner report "
+					   "%4.4x, CSR12 %2.2x, %cD.\n",
+					   dev->name, mii_reg1, mii_reg5, csr12,
+					   tp->full_duplex ? 'F' : 'H');
+			if (mii_reg1 != 0xffff  &&  (mii_reg1 & 0x0004) == 0) {
+				int new_reg1 = mdio_read(dev, tp->phys[0], 1);
+				if ((new_reg1 & 0x0004) == 0) {
+					printk(KERN_INFO "%s: No link beat on the MII interface,"
+						   " status then %4.4x now %4.4x.\n",
+						   dev->name, mii_reg1, new_reg1);
+					if (tp->mtable  &&  tp->mtable->has_nonmii)
+						goto select_next_media;
+				}
+			}
+			if (mii_reg5 == 0xffff  ||  mii_reg5 == 0x0000)
+				;				/* No MII device or no link partner report */
+			else if (tp->full_duplex_lock)
+				;
+			else {
+				int negotiated = mii_reg5 & tp->advertising[0];
+				int duplex = ((negotiated & 0x0100) != 0
+							  || (negotiated & 0x00C0) == 0x0040);
+				/* 100baseTx-FD  or  10T-FD, but not 100-HD */
+				if (tp->full_duplex != duplex) {
+					tp->full_duplex = duplex;
+					if (tp->full_duplex)
+						tp->csr6 |= 0x0200;
+					else
+						tp->csr6 &= ~0x0200;
+					outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+					outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+					if (tulip_debug > 0) /* Gurppp, should be >1 */
+						printk(KERN_INFO "%s: Setting %s-duplex based on MII"
+							   " Xcvr #%d parter capability of %4.4x.\n",
+							   dev->name, tp->full_duplex ? "full" : "half",
+							   tp->phys[0], mii_reg5);
+				}
+			}
+			next_tick = 60*HZ;
+			break;
+		}
+		case 2:					/* 21142 serial block has no link beat. */
+		default:
+			break;
+		}
+	}
+	break;
+	}
+	if (next_tick) {
+		tp->timer.expires = RUN_AT(next_tick);
+		add_timer(&tp->timer);
+	}
+}
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+   of available transceivers.  */
+static void t21142_timer(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	int csr12 = inl(ioaddr + CSR12);
+	int next_tick = 60*HZ;
+	int new_csr6 = 0;
+
+	if (tulip_debug > 1)
+		printk(KERN_INFO"%s: 21142 negotiation status %8.8x, %s.\n",
+			   dev->name, csr12, medianame[dev->if_port]);
+	if (dev->if_port == 3) {
+		if (csr12 & 2) {		/* No 100mbps link beat, revert to 10mbps. */
+			new_csr6 = 0x82420200;
+			outl(new_csr6, ioaddr + CSR6);
+			outl(0x0000, ioaddr + CSR13);
+			outl(0x0003FFFF, ioaddr + CSR14);
+			outl(0x0008, ioaddr + CSR15);
+			outl(0x0001, ioaddr + CSR13);
+			outl(0x1301, ioaddr + CSR12); /* Start NWay. */
+		}
+	} else if ((csr12 & 0x7000) != 0x5000) {
+		/* Negotiation failed.  Search media types. */
+		if (tulip_debug > 1)
+			printk(KERN_INFO"%s: 21142 negotiation failed, status %8.8x.\n",
+				   dev->name, csr12);
+		if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+			new_csr6 = 0x82420000;
+			dev->if_port = 0;
+			outl(0, ioaddr + CSR13);
+			outl(0x0003FFFF, ioaddr + CSR14);
+			outl(t21142_csr15[dev->if_port], ioaddr + CSR15);
+			outl(t21142_csr13[dev->if_port], ioaddr + CSR13);
+		} else if (csr12 & 0x100) {
+			new_csr6 = 0x82420200;
+			dev->if_port = 2;
+			outl(0, ioaddr + CSR13);
+			outl(0x0003FFFF, ioaddr + CSR14);
+			outl(0x0008, ioaddr + CSR15);
+			outl(0x0001, ioaddr + CSR13);
+		} else {
+			/* Select 100mbps port to check for link beat. */
+			new_csr6 = 0x83860000;
+			dev->if_port = 3;
+			outl(0, ioaddr + CSR13);
+			outl(0x0003FF7F, ioaddr + CSR14);
+			outl(8, ioaddr + CSR15);
+			outl(1, ioaddr + CSR13);
+		}
+		if (tulip_debug > 1)
+			printk(KERN_INFO"%s: Testing new 21142 media %s.\n",
+				   dev->name, medianame[dev->if_port]);
+		if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+			tp->csr6 &= 0x00D5;
+			tp->csr6 |= new_csr6;
+			outl(0x0301, ioaddr + CSR12);
+			outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+			outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+		}
+	}
+	tp->timer.expires = RUN_AT(next_tick);
+	add_timer(&tp->timer);
+}
+
+static void t21142_lnk_change( struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	int csr12 = inl(ioaddr + CSR12);
+
+	if (tulip_debug > 1)
+		printk(KERN_INFO"%s: 21142 link status interrupt %8.8x, CSR5 %x.\n",
+			   dev->name, csr12, inl(ioaddr + CSR5));
+
+	if ((csr12 & 0x7000) == 0x5000) {
+		if (csr12 & 0x01800000) {
+			/* Switch to 100mbps mode. */
+			outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+			if (csr12 & 0x01000000) {
+				dev->if_port = 5;
+				tp->csr6 = 0x83860200;
+			} else {
+				dev->if_port = 3;
+				tp->csr6 = 0x83860000;
+			}
+			outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+		} /* Else 10baseT-FD is handled automatically. */
+	} else if (dev->if_port == 3) {
+		if (!(csr12 & 2))
+			printk(KERN_INFO"%s: 21142 100baseTx link beat good.\n",
+				   dev->name);
+		else
+			dev->if_port = 0;
+	} else if (dev->if_port == 0) {
+		if (!(csr12 & 4))
+			printk(KERN_INFO"%s: 21142 10baseT link beat good.\n",
+				   dev->name);
+	} else if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+			printk(KERN_INFO"%s: 21142 10mpbs sensed media.\n",
+				   dev->name);
+			dev->if_port = 0;
+	} else  {		/* 100mbps link beat good. */
+		printk(KERN_INFO"%s: 21142 100baseTx sensed media.\n",
+			   dev->name);
+		dev->if_port = 3;
+		tp->csr6 = 0x83860000;
+		outl(0x0003FF7F, ioaddr + CSR14);
+		outl(0x0301, ioaddr + CSR12);
+		outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+		outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+	}
+}
+	
+
+static void mxic_timer(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	int next_tick = 60*HZ;
+
+	if (tulip_debug > 3) {
+		printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
+			   inl(ioaddr + CSR12));
+	}
+	if (next_tick) {
+		tp->timer.expires = RUN_AT(next_tick);
+		add_timer(&tp->timer);
+	}
+}
+
+static void pnic_timer(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	int csr12 = inl(ioaddr + CSR12);
+	int next_tick = 60*HZ;
+	int new_csr6 = tp->csr6 & ~0x40C40200;
+
+	if (media_cap[dev->if_port] & MediaIsMII) {
+		int negotiated = mdio_read(dev, tp->phys[0], 5) & tp->advertising[0];
+
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: LC82C168 negotiated capability %8.8x, "
+				   "CSR5 %8.8x.\n",
+				   dev->name, negotiated, inl(ioaddr + CSR5));
+
+		if (negotiated & 0x0380) 				/* 10 vs 100mbps */
+			new_csr6 |= 0x812E0000;
+		else
+			new_csr6 |= 0x816E0000;
+		if (((negotiated & 0x0300) == 0x0100)			/* Duplex */
+			|| (negotiated & 0x00C0) == 0x0040
+			|| tp->full_duplex_lock) {
+			tp->full_duplex = 1;
+			new_csr6 |= 0x0200;
+		}
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: LC82C168 MII PHY status %4.4x, Link "
+				   "partner report %4.4x, csr6 %8.8x/%8.8x.\n",
+			   dev->name, mdio_read(dev, tp->phys[0], 1), negotiated,
+				   tp->csr6, inl(ioaddr + CSR6));
+	} else {
+		int phy_reg = inl(ioaddr + 0xB8);
+		int csr5 = inl(ioaddr + CSR5);
+
+		if (tulip_debug > 1)
+			printk(KERN_DEBUG "%s: LC82C168 phy status %8.8x, CSR5 %8.8x.\n",
+				   dev->name, phy_reg, csr5);
+
+		if (phy_reg & 0x04000000) {	/* Remote link fault */
+			/*outl(0x0201F078, ioaddr + 0xB8);*/
+			next_tick = 3*HZ;
+		}
+		if (inl(ioaddr + CSR5) & TPLnkFail) { /* 100baseTx link beat */
+			if (tulip_debug > 1)
+				printk(KERN_DEBUG "%s: %s link beat failed, CSR12 %4.4x, "
+					   "CSR5 %8.8x, PHY %3.3x.\n",
+					   dev->name, medianame[dev->if_port], csr12,
+					   inl(ioaddr + CSR5), inl(ioaddr + 0xB8));
+			if (tp->medialock) {
+			} else if (dev->if_port == 0) {
+				dev->if_port = 3;
+				outl(0x33, ioaddr + CSR12);
+				new_csr6 = 0x01860000;
+				outl(0x1F868, ioaddr + 0xB8);
+			} else {
+				dev->if_port = 0;
+				outl(0x32, ioaddr + CSR12);
+				new_csr6 = 0x00420000;
+				outl(0x1F078, ioaddr + 0xB8);
+			}
+			new_csr6 |= (tp->csr6 & 0xfdff);
+			next_tick = 3*HZ;
+		} else
+			new_csr6 = tp->csr6;
+		if (tp->full_duplex_lock  ||  (phy_reg & 0x30000000) != 0) {
+			tp->full_duplex = 1;
+			new_csr6 |= 0x00000200;
+		}
+	}
+	if (tp->csr6 != new_csr6) {
+		tp->csr6 = new_csr6;
+		outl(tp->csr6 | 0x0002, ioaddr + CSR6);	/* Restart Tx */
+		outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+		dev->trans_start = jiffies;
+		if (tulip_debug > 0) /* Gurppp, should be >1 */
+			printk(KERN_INFO "%s: Changing PNIC configuration to %s-duplex, "
+				   "CSR6 %8.8x.\n",
+				   dev->name, tp->full_duplex ? "full" : "half", new_csr6);
+	}
+	tp->timer.expires = RUN_AT(next_tick);
+	add_timer(&tp->timer);
+}
+
+static void tulip_tx_timeout(struct device *dev)
+{
+  struct tulip_private *tp = (struct tulip_private *)dev->priv;
+  long ioaddr = dev->base_addr;
+
+  if (media_cap[dev->if_port] & MediaIsMII) {
+	  /* Do nothing -- the media monitor should handle this. */
+	  if (tulip_debug > 1)
+		  printk(KERN_WARNING "%s: Transmit timeout using MII device.\n",
+				 dev->name);
+	  dev->trans_start = jiffies;
+	  return;
+  } else if (tp->chip_id == DC21040) {
+	  if (inl(ioaddr + CSR12) & 0x0002) {
+		  printk(KERN_INFO "%s: transmit timed out, switching to %s media.\n",
+				 dev->name, dev->if_port ? "10baseT" : "AUI");
+		  dev->if_port ^= 1;
+		  outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+	  }
+	  dev->trans_start = jiffies;
+	  return;
+  } else if (tp->chip_id == DC21041) {
+	u32 csr12 = inl(ioaddr + CSR12);
+
+	printk(KERN_WARNING "%s: 21041 transmit timed out, status %8.8x, CSR12 %8.8x,"
+		   " CSR13 %8.8x, CSR14 %8.8x, resetting...\n",
+		   dev->name, inl(ioaddr + CSR5), csr12,
+		   inl(ioaddr + CSR13), inl(ioaddr + CSR14));
+	tp->mediasense = 1;
+	if (dev->if_port == 1 || dev->if_port == 2)
+		if (csr12 & 0x0004) {
+			dev->if_port = 2 - dev->if_port;
+		} else
+			dev->if_port = 0;
+	else
+		dev->if_port = 1;
+	select_media(dev, 0);
+	tp->stats.tx_errors++;
+	dev->trans_start = jiffies;
+	return;
+  } else if (tp->chip_id == DC21140 || tp->chip_id == DC21142
+			 || tp->chip_id == MX98713) {
+	  /* Stop the transmit process. */
+	  outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+	  printk(KERN_WARNING "%s: 21140 transmit timed out, status %8.8x, "
+			 "SIA %8.8x %8.8x %8.8x %8.8x, resetting...\n",
+			 dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR12),
+			 inl(ioaddr + CSR13), inl(ioaddr + CSR14), inl(ioaddr + CSR15));
+	  if (tp->mtable) {
+		  if (--tp->cur_index < 0) {
+			  /* We start again, but should instead look for default. */
+			  tp->cur_index = tp->mtable->leafcount - 1;
+		  }
+		  select_media(dev, 0);
+		  printk(KERN_WARNING "%s: transmit timed out, switching to %s media.\n",
+				 dev->name, dev->if_port ? "100baseTx" : "10baseT");
+	  }
+	  outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+	  tp->stats.tx_errors++;
+	  dev->trans_start = jiffies;
+	  return;
+  } else
+	printk(KERN_WARNING "%s: transmit timed out, status %8.8x, CSR12 %8.8x,"
+		   " resetting...\n",
+		   dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR12));
+#ifdef way_too_many_messages
+  printk("  Rx ring %8.8x: ", (int)tp->rx_ring);
+  for (i = 0; i < RX_RING_SIZE; i++)
+	printk(" %8.8x", (unsigned int)tp->rx_ring[i].status);
+  printk("\n  Tx ring %8.8x: ", (int)tp->tx_ring);
+  for (i = 0; i < TX_RING_SIZE; i++)
+	printk(" %8.8x", (unsigned int)tp->tx_ring[i].status);
+  printk("\n");
+#endif
+
+  /* Perhaps we should reinitialize the hardware here. */
+  dev->if_port = 0;
+  /* Stop and restart the chip's Tx processes . */
+  outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+  outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+  /* Trigger an immediate transmit demand. */
+  outl(0, ioaddr + CSR1);
+
+  dev->trans_start = jiffies;
+  tp->stats.tx_errors++;
+  return;
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void
+tulip_init_ring(struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int i;
+
+	tp->tx_full = 0;
+	tp->cur_rx = tp->cur_tx = 0;
+	tp->dirty_rx = tp->dirty_tx = 0;
+
+	for (i = 0; i < RX_RING_SIZE; i++) {
+		tp->rx_ring[i].status = 0x80000000;	/* Owned by Tulip chip */
+		tp->rx_ring[i].length = PKT_BUF_SZ;
+		{
+			/* Note the receive buffer must be longword aligned.
+			   dev_alloc_skb() provides 16 byte alignment.  But do *not*
+			   use skb_reserve() to align the IP header! */
+			struct sk_buff *skb;
+			skb = DEV_ALLOC_SKB(PKT_BUF_SZ);
+			tp->rx_skbuff[i] = skb;
+			if (skb == NULL)
+				break;			/* Bad news!  */
+			skb->dev = dev;			/* Mark as being used by this device. */
+#if LINUX_VERSION_CODE > 0x10300
+			tp->rx_ring[i].buffer1 = virt_to_bus(skb->tail);
+#else
+			tp->rx_ring[i].buffer1 = virt_to_bus(skb->data);
+#endif
+		}
+		tp->rx_ring[i].buffer2 = virt_to_bus(&tp->rx_ring[i+1]);
+	}
+	/* Mark the last entry as wrapping the ring. */
+	tp->rx_ring[i-1].length = PKT_BUF_SZ | 0x02000000;
+	tp->rx_ring[i-1].buffer2 = virt_to_bus(&tp->rx_ring[0]);
+
+	/* The Tx buffer descriptor is filled in as needed, but we
+	   do need to clear the ownership bit. */
+	for (i = 0; i < TX_RING_SIZE; i++) {
+		tp->tx_skbuff[i] = 0;
+		tp->tx_ring[i].status = 0x00000000;
+		tp->tx_ring[i].buffer2 = virt_to_bus(&tp->tx_ring[i+1]);
+	}
+	tp->tx_ring[i-1].buffer2 = virt_to_bus(&tp->tx_ring[0]);
+}
+
+static int
+tulip_start_xmit(struct sk_buff *skb, struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int entry;
+	u32 flag;
+
+	/* Block a timer-based transmit from overlapping.  This could better be
+	   done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */
+	if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
+		if (jiffies - dev->trans_start < TX_TIMEOUT)
+			return 1;
+		tulip_tx_timeout(dev);
+		return 1;
+	}
+
+	/* Caution: the write order is important here, set the base address
+	   with the "ownership" bits last. */
+
+	/* Calculate the next Tx descriptor entry. */
+	entry = tp->cur_tx % TX_RING_SIZE;
+
+	tp->tx_skbuff[entry] = skb;
+	tp->tx_ring[entry].buffer1 = virt_to_bus(skb->data);
+
+	if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
+	  flag = 0x60000000; /* No interrupt */
+	  dev->tbusy = 0;
+	} else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
+	  flag = 0xe0000000; /* Tx-done intr. */
+	  dev->tbusy = 0;
+	} else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
+	  flag = 0x60000000; /* No Tx-done intr. */
+	  dev->tbusy = 0;
+	} else {
+	  /* Leave room for set_rx_mode() to fill entries. */
+	  flag = 0xe0000000; /* Tx-done intr. */
+	  tp->tx_full = 1;
+	}
+	if (entry == TX_RING_SIZE-1)
+		flag |= 0xe2000000;
+
+	tp->tx_ring[entry].length = skb->len | flag;
+	tp->tx_ring[entry].status = 0x80000000;	/* Pass ownership to the chip. */
+	tp->cur_tx++;
+	/* Trigger an immediate transmit demand. */
+	outl(0, dev->base_addr + CSR1);
+
+	dev->trans_start = jiffies;
+
+	return 0;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+   after the Tx thread. */
+static void tulip_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs)
+{
+#ifdef SA_SHIRQ		/* Use the now-standard shared IRQ implementation. */
+	struct device *dev = (struct device *)dev_instance;
+#else
+	struct device *dev = (struct device *)(irq2dev_map[irq]);
+#endif
+
+	struct tulip_private *tp;
+	long ioaddr;
+	int csr5, work_budget = max_interrupt_work;
+
+	if (dev == NULL) {
+		printk (KERN_ERR" tulip_interrupt(): irq %d for unknown device.\n",
+				irq);
+		return;
+	}
+
+	ioaddr = dev->base_addr;
+	tp = (struct tulip_private *)dev->priv;
+	if (test_and_set_bit(0, (void*)&tp->interrupt)) {
+#ifdef SMP_CHECK
+		printk(KERN_ERR "%s: Re-entering the interrupt handler with proc %d,"
+			   " proc %d already handling.\n", dev->name,
+			   tp->smp_proc_id, hard_smp_processor_id());
+#else
+		printk(KERN_ERR "%s: Re-entering the interrupt handler.\n", dev->name);
+#endif
+		return;
+	}
+	dev->interrupt = 1;
+#ifdef SMP_CHECK
+	tp->smp_proc_id = hard_smp_processor_id();
+#endif
+
+	do {
+		csr5 = inl(ioaddr + CSR5);
+		/* Acknowledge all of the current interrupt sources ASAP. */
+		outl(csr5 & 0x0001ffff, ioaddr + CSR5);
+
+		if (tulip_debug > 4)
+			printk(KERN_DEBUG "%s: interrupt  csr5=%#8.8x new csr5=%#8.8x.\n",
+				   dev->name, csr5, inl(dev->base_addr + CSR5));
+
+		if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
+			break;
+
+		if (csr5 & (RxIntr | RxNoBuf))
+			work_budget -= tulip_rx(dev);
+
+		if (csr5 & (TxNoBuf | TxDied | TxIntr)) {
+			unsigned int dirty_tx;
+
+			for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
+				 dirty_tx++) {
+				int entry = dirty_tx % TX_RING_SIZE;
+				int status = tp->tx_ring[entry].status;
+
+				if (status < 0)
+					break;			/* It still hasn't been Txed */
+				/* Check for Rx filter setup frames. */
+				if (tp->tx_skbuff[entry] == NULL)
+				  continue;
+
+				if (status & 0x8000) {
+					/* There was an major error, log it. */
+#ifndef final_version
+					if (tulip_debug > 1)
+						printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
+							   dev->name, status);
+#endif
+					tp->stats.tx_errors++;
+					if (status & 0x4104) tp->stats.tx_aborted_errors++;
+					if (status & 0x0C00) tp->stats.tx_carrier_errors++;
+					if (status & 0x0200) tp->stats.tx_window_errors++;
+					if (status & 0x0002) tp->stats.tx_fifo_errors++;
+					if ((status & 0x0080) && tp->full_duplex == 0)
+						tp->stats.tx_heartbeat_errors++;
+#ifdef ETHER_STATS
+					if (status & 0x0100) tp->stats.collisions16++;
+#endif
+				} else {
+#ifdef ETHER_STATS
+					if (status & 0x0001) tp->stats.tx_deferred++;
+#endif
+#if LINUX_VERSION_CODE > 0x20127
+					tp->stats.tx_bytes += tp->tx_ring[entry].length & 0x7ff;
+#endif
+					tp->stats.collisions += (status >> 3) & 15;
+					tp->stats.tx_packets++;
+				}
+
+				/* Free the original skb. */
+#if (LINUX_VERSION_CODE > 0x20155)
+				dev_kfree_skb(tp->tx_skbuff[entry]);
+#else
+				dev_kfree_skb(tp->tx_skbuff[entry], FREE_WRITE);
+#endif
+				tp->tx_skbuff[entry] = 0;
+			}
+
+#ifndef final_version
+			if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
+				printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
+					   dev->name, dirty_tx, tp->cur_tx, tp->tx_full);
+				dirty_tx += TX_RING_SIZE;
+			}
+#endif
+
+			if (tp->tx_full && dev->tbusy
+				&& tp->cur_tx - dirty_tx  < TX_RING_SIZE - 2) {
+				/* The ring is no longer full, clear tbusy. */
+				tp->tx_full = 0;
+				dev->tbusy = 0;
+				mark_bh(NET_BH);
+			}
+
+			tp->dirty_tx = dirty_tx;
+			if (csr5 & TxDied) {
+				if (tulip_debug > 1)
+					printk(KERN_WARNING "%s: The transmitter stopped!"
+						   "  CSR5 is %x, CSR6 %x.\n",
+						   dev->name, csr5, inl(ioaddr + CSR6));
+				outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+				outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+			}
+		}
+
+		/* Log errors. */
+		if (csr5 & AbnormalIntr) {	/* Abnormal error summary bit. */
+			if (csr5 & TxJabber) tp->stats.tx_errors++;
+			if (csr5 & TxFIFOUnderflow) {
+				if ((tp->csr6 & 0xC000) != 0xC000)
+					tp->csr6 += 0x4000;	/* Bump up the Tx threshold */
+				else
+					tp->csr6 |= 0x00200000;  /* Store-n-forward. */
+				/* Restart the transmit process. */
+				outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+				outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+			}
+			if (csr5 & RxDied) {		/* Missed a Rx frame. */
+				tp->stats.rx_errors++;
+				tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+			}
+			if (csr5 & TimerInt) {
+				printk(KERN_ERR "%s: Something Wicked happened! %8.8x.\n",
+					   dev->name, csr5);
+				/* Hmmmmm, it's not clear what to do here. */
+			}
+			if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)
+				&& tp->chip_id == DC21142) {
+				if (tulip_debug > 1)
+					printk(KERN_INFO"%s: 21142 link change, CSR5 = %8.8x.\n",
+						   dev->name, csr5);
+				t21142_lnk_change(dev);
+			}
+			/* Clear all error sources, included undocumented ones! */
+			outl(0x0800f7ba, ioaddr + CSR5);
+		}
+		if (--work_budget < 0) {
+			if (tulip_debug > 1)
+				printk(KERN_WARNING "%s: Too much work at interrupt, "
+					   "csr5=0x%8.8x.\n", dev->name, csr5);
+			/* Acknowledge all interrupt sources. */
+			outl(0x8001ffff, ioaddr + CSR5);
+#ifdef notdef
+			/* Clear all but standard interrupt sources. */
+			outl((~csr5) & 0x0001ebef, ioaddr + CSR7);
+#endif
+			break;
+		}
+	} while (1);
+
+	if (tulip_debug > 3)
+		printk(KERN_DEBUG "%s: exiting interrupt, csr5=%#4.4x.\n",
+			   dev->name, inl(ioaddr + CSR5));
+
+	dev->interrupt = 0;
+	clear_bit(0, (void*)&tp->interrupt);
+	return;
+}
+
+static int
+tulip_rx(struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int entry = tp->cur_rx % RX_RING_SIZE;
+	int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
+	int work_done = 0;
+
+	if (tulip_debug > 4)
+		printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
+			   tp->rx_ring[entry].status);
+	/* If we own the next entry, it's a new packet. Send it up. */
+	while (tp->rx_ring[entry].status >= 0) {
+		s32 status = tp->rx_ring[entry].status;
+
+		if (--rx_work_limit < 0)
+			break;
+		if ((status & 0x0300) != 0x0300) {
+			if ((status & 0xffff) != 0x7fff) { /* Ingore earlier buffers. */
+				if (tulip_debug > 1)
+					printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
+						   "multiple buffers, status %8.8x!\n",
+						   dev->name, status);
+			  tp->stats.rx_length_errors++;
+			}
+		} else if (status & 0x8000) {
+			/* There was a fatal error. */
+			if (tulip_debug > 2)
+				printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+					   dev->name, status);
+			tp->stats.rx_errors++; /* end of a packet.*/
+			if (status & 0x0890) tp->stats.rx_length_errors++;
+			if (status & 0x0004) tp->stats.rx_frame_errors++;
+			if (status & 0x0002) tp->stats.rx_crc_errors++;
+			if (status & 0x0001) tp->stats.rx_fifo_errors++;
+		} else {
+			/* Omit the four octet CRC from the length. */
+			short pkt_len = ((status >> 16) & 0x7FF) - 4;
+			struct sk_buff *skb;
+
+			/* Check if the packet is long enough to just accept without
+			   copying to a properly sized skbuff. */
+			if (pkt_len < rx_copybreak
+				&& (skb = DEV_ALLOC_SKB(pkt_len+2)) != NULL) {
+				skb->dev = dev;
+				skb_reserve(skb, 2);	/* 16 byte align the IP header */
+#if LINUX_VERSION_CODE < 0x10300
+				memcpy(skb->data, tp->rx_ring[entry].buffer1, pkt_len);
+#elif LINUX_VERSION_CODE < 0x20200  || defined(__alpha__)
+				memcpy(skb_put(skb, pkt_len),
+					   bus_to_virt(tp->rx_ring[entry].buffer1), pkt_len);
+#else
+#warning Code untested
+				eth_copy_and_sum(skb, bus_to_virt(tp->rx_ring[entry].buffer1),
+								 pkt_len, 0);
+				skb_put(skb, pkt_len);
+#endif
+				work_done++;
+			} else { 	/* Pass up the skb already on the Rx ring. */
+				skb = tp->rx_skbuff[entry];
+				tp->rx_skbuff[entry] = NULL;
+#ifndef final_version
+				{
+					void *temp = skb_put(skb, pkt_len);
+					if (bus_to_virt(tp->rx_ring[entry].buffer1) != temp)
+						printk(KERN_ERR "%s: Internal consistency error! The "
+						   "skbuff addresses do not match in tulip_rx:"
+							   " %p vs. %p / %p.\n", dev->name,
+							   bus_to_virt(tp->rx_ring[entry].buffer1),
+							   skb->head, temp);
+				}
+#else
+				skb_put(skb, pkt_len);
+#endif
+			}
+#if LINUX_VERSION_CODE > 0x10300
+			skb->protocol = eth_type_trans(skb, dev);
+#else
+			skb->len = pkt_len;
+#endif
+			netif_rx(skb);
+			dev->last_rx = jiffies;
+			tp->stats.rx_packets++;
+#if LINUX_VERSION_CODE > 0x20127
+			tp->stats.rx_bytes += pkt_len;
+#endif
+		}
+		entry = (++tp->cur_rx) % RX_RING_SIZE;
+	}
+
+	/* Refill the Rx ring buffers. */
+	for (; tp->cur_rx - tp->dirty_rx > 0; tp->dirty_rx++) {
+		entry = tp->dirty_rx % RX_RING_SIZE;
+		if (tp->rx_skbuff[entry] == NULL) {
+			struct sk_buff *skb;
+			skb = tp->rx_skbuff[entry] = DEV_ALLOC_SKB(PKT_BUF_SZ);
+			if (skb == NULL)
+				break;
+			skb->dev = dev;			/* Mark as being used by this device. */
+#if LINUX_VERSION_CODE > 0x10300
+			tp->rx_ring[entry].buffer1 = virt_to_bus(skb->tail);
+#else
+			tp->rx_ring[entry].buffer1 = virt_to_bus(skb->data);
+#endif
+			work_done++;
+		}
+		tp->rx_ring[entry].status = 0x80000000;
+	}
+
+	return work_done;
+}
+
+static int
+tulip_close(struct device *dev)
+{
+	long ioaddr = dev->base_addr;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	int i;
+
+	dev->start = 0;
+	dev->tbusy = 1;
+
+	if (tulip_debug > 1)
+		printk(KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
+			   dev->name, inl(ioaddr + CSR5));
+
+	/* Disable interrupts by clearing the interrupt mask. */
+	outl(0x00000000, ioaddr + CSR7);
+	/* Stop the chip's Tx and Rx processes. */
+	outl(inl(ioaddr + CSR6) & ~0x2002, ioaddr + CSR6);
+	/* 21040 -- Leave the card in 10baseT state. */
+	if (tp->chip_id == DC21040)
+		outl(0x00000004, ioaddr + CSR13);
+
+	tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+	del_timer(&tp->timer);
+
+#ifdef SA_SHIRQ
+	free_irq(dev->irq, dev);
+#else
+	free_irq(dev->irq);
+	irq2dev_map[dev->irq] = 0;
+#endif
+
+	/* Free all the skbuffs in the Rx queue. */
+	for (i = 0; i < RX_RING_SIZE; i++) {
+		struct sk_buff *skb = tp->rx_skbuff[i];
+		tp->rx_skbuff[i] = 0;
+		tp->rx_ring[i].status = 0;		/* Not owned by Tulip chip. */
+		tp->rx_ring[i].length = 0;
+		tp->rx_ring[i].buffer1 = 0xBADF00D0; /* An invalid address. */
+		if (skb) {
+#if LINUX_VERSION_CODE < 0x20100
+			skb->free = 1;
+#endif
+#if (LINUX_VERSION_CODE > 0x20155)
+			dev_kfree_skb(skb);
+#else
+			dev_kfree_skb(skb, FREE_WRITE);
+#endif
+		}
+	}
+	for (i = 0; i < TX_RING_SIZE; i++) {
+		if (tp->tx_skbuff[i])
+#if (LINUX_VERSION_CODE > 0x20155)
+			dev_kfree_skb(tp->tx_skbuff[i]);
+#else
+			dev_kfree_skb(tp->tx_skbuff[i], FREE_WRITE);
+#endif
+		tp->tx_skbuff[i] = 0;
+	}
+
+
+	MOD_DEC_USE_COUNT;
+
+	return 0;
+}
+
+static struct enet_statistics *
+tulip_get_stats(struct device *dev)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+
+	if (dev->start)
+		tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+	return &tp->stats;
+}
+
+#ifdef HAVE_PRIVATE_IOCTL
+/* Provide ioctl() calls to examine the MII xcvr state. */
+static int private_ioctl(struct device *dev, struct ifreq *rq, int cmd)
+{
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+	long ioaddr = dev->base_addr;
+	u16 *data = (u16 *)&rq->ifr_data;
+	int phy = tp->phys[0] & 0x1f;
+	long flags;
+
+	switch(cmd) {
+	case SIOCDEVPRIVATE:		/* Get the address of the PHY in use. */
+		if (tp->mtable  &&  tp->mtable->has_mii)
+			data[0] = phy;
+		else if (tp->chip_id == DC21142)
+			data[0] = 32;
+		else
+			return -ENODEV;
+		return 0;
+	case SIOCDEVPRIVATE+1:		/* Read the specified MII register. */
+		if (data[0] == 32) {  /* 21142 pseudo-MII */
+			int csr12 = inl(ioaddr + CSR12);
+			int csr14 = inl(ioaddr + CSR14);
+			switch (data[1]) {
+			case 0: {
+				data[3] = ((csr14<<13)&0x4000) + ((csr14<<5)&0x1000);
+				break; }
+			case 1:
+				data[3] = 0x7848 + ((csr12&0x7000) == 0x5000 ? 0x20 : 0)
+					+ (csr12&0x06 ? 0x04 : 0);
+				break;
+			case 4: {
+				int csr14 = inl(ioaddr + CSR14);
+				data[3] = ((csr14>>9)&0x0380) + ((csr14>>1)&0x20) + 1;
+				break;
+			}
+			case 5: data[3] = inl(ioaddr + CSR12) >> 16; break;
+			default: data[3] = 0; break;
+			}
+		} else {
+			save_flags(flags);
+			cli();
+			data[3] = mdio_read(dev, data[0] & 0x1f, data[1] & 0x1f);
+			restore_flags(flags);
+		}
+		return 0;
+	case SIOCDEVPRIVATE+2:		/* Write the specified MII register */
+		if (!suser())
+			return -EPERM;
+		if (data[0] == 32) {  /* 21142 pseudo-MII */
+		} else {
+			save_flags(flags);
+			cli();
+			mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+			restore_flags(flags);
+		}
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return -EOPNOTSUPP;
+}
+#endif  /* HAVE_PRIVATE_IOCTL */
+
+/* Set or clear the multicast filter for this adaptor.
+   Note that we only use exclusion around actually queueing the
+   new frame, not around filling tp->setup_frame.  This is non-deterministic
+   when re-entered but still correct. */
+
+/* The little-endian AUTODIN32 ethernet CRC calculation.
+   N.B. Do not use for bulk data, use a table-based routine instead.
+   This is common code and should be moved to net/core/crc.c */
+static unsigned const ethernet_polynomial_le = 0xedb88320U;
+static inline unsigned ether_crc_le(int length, unsigned char *data)
+{
+	unsigned int crc = 0xffffffff;	/* Initial value. */
+	while(--length >= 0) {
+		unsigned char current_octet = *data++;
+		int bit;
+		for (bit = 8; --bit >= 0; current_octet >>= 1) {
+			if ((crc ^ current_octet) & 1) {
+				crc >>= 1;
+				crc ^= ethernet_polynomial_le;
+			} else
+				crc >>= 1;
+		}
+	}
+	return crc;
+}
+
+#ifdef NEW_MULTICAST
+static void set_rx_mode(struct device *dev)
+#else
+static void set_rx_mode(struct device *dev, int num_addrs, void *addrs)
+#endif
+{
+	long ioaddr = dev->base_addr;
+	int csr6 = inl(ioaddr + CSR6) & ~0x00D5;
+	struct tulip_private *tp = (struct tulip_private *)dev->priv;
+
+	tp->csr6 &= ~0x00D5;
+	if (dev->flags & IFF_PROMISC) {			/* Set promiscuous. */
+		outl(csr6 | 0x00C0, ioaddr + CSR6);
+		/* Unconditionally log net taps. */
+		printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name);
+		tp->csr6 |= 0xC0;
+	} else if ((dev->mc_count > 1000)  ||  (dev->flags & IFF_ALLMULTI)) {
+		/* Too many to filter perfectly -- accept all multicasts. */
+		outl(csr6 | 0x0080, ioaddr + CSR6);
+		tp->csr6 |= 0x80;
+	} else {
+		u32 *setup_frm = tp->setup_frame;
+		struct dev_mc_list *mclist;
+		u16 *eaddrs;
+		u32 tx_flags;
+		int i;
+
+		if (dev->mc_count > 14) { /* Must use a multicast hash table. */
+		  u16 hash_table[32];
+		  memset(hash_table, 0, sizeof(hash_table));
+		  /* This should work on big-endian machines as well. */
+		  for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+			   i++, mclist = mclist->next)
+			  set_bit(ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff,
+					  hash_table);
+		  /* Copy the hash table to the setup frame.
+			 NOTE that only the LOW SHORTWORD of setup_frame[] is valid! */
+		  for (i = 0; i < 32; i++)
+			*setup_frm++ = hash_table[i];
+		  setup_frm += 7;
+		  tx_flags = 0x08400000 | 192;
+		  /* Too clever: i > 15 for fall-though. */
+		} else {
+		  /* We have <= 15 addresses so we can use the wonderful
+			 16 address perfect filtering of the Tulip. */
+		  for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
+			   i++, mclist = mclist->next) {
+			/* Note that only the low shortword of setup_frame[] is valid!
+			   This code may require tweaking for non-x86 architectures! */
+			eaddrs = (u16 *)mclist->dmi_addr;
+			*setup_frm++ = *eaddrs++;
+			*setup_frm++ = *eaddrs++;
+			*setup_frm++ = *eaddrs++;
+		  }
+		  /* Fill the rest of the table with our physical address.
+			 Once again, only the low shortword or setup_frame[] is valid! */
+		  *setup_frm++ = 0xffff;
+		  *setup_frm++ = 0xffff;
+		  *setup_frm++ = 0xffff;
+		  tx_flags = 0x08000000 | 192;
+		}
+		eaddrs = (u16 *)dev->dev_addr;
+		do {
+			*setup_frm++ = eaddrs[0];
+			*setup_frm++ = eaddrs[1];
+			*setup_frm++ = eaddrs[2];
+		} while (++i < 15);
+		/* Now add this frame to the Tx list. */
+		if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) {
+			/* Same setup recently queued, we need not add it. */
+		} else {
+			unsigned long flags;
+			unsigned int entry;
+			
+			save_flags(flags); cli();
+			entry = tp->cur_tx++ % TX_RING_SIZE;
+
+			if (entry != 0) {
+				/* Avoid a chip errata by prefixing a dummy entry. */
+				tp->tx_skbuff[entry] = 0;
+				tp->tx_ring[entry].length =
+					(entry == TX_RING_SIZE-1) ? 0x02000000 : 0;
+				tp->tx_ring[entry].buffer1 = 0;
+				tp->tx_ring[entry].status = 0x80000000;
+				entry = tp->cur_tx++ % TX_RING_SIZE;
+			}
+
+			tp->tx_skbuff[entry] = 0;
+			/* Put the setup frame on the Tx list. */
+			if (entry == TX_RING_SIZE-1)
+				tx_flags |= 0x02000000;		/* Wrap ring. */
+			tp->tx_ring[entry].length = tx_flags;
+			tp->tx_ring[entry].buffer1 = virt_to_bus(tp->setup_frame);
+			tp->tx_ring[entry].status = 0x80000000;
+			if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2) {
+				dev->tbusy = 1;
+				tp->tx_full = 1;
+			}
+			restore_flags(flags);
+			/* Trigger an immediate transmit demand. */
+			outl(0, ioaddr + CSR1);
+		}
+		outl(csr6 | 0x0000, ioaddr + CSR6);
+	}
+}
+
+#ifdef CARDBUS
+
+#include <pcmcia/driver_ops.h>
+
+static dev_node_t *tulip_attach(dev_locator_t *loc)
+{
+	u16 dev_id;
+	u32 io;
+	u8 bus, devfn;
+	struct device *dev;
+
+	if (loc->bus != LOC_PCI) return NULL;
+	bus = loc->b.pci.bus; devfn = loc->b.pci.devfn;
+	printk(KERN_INFO "tulip_attach(bus %d, function %d)\n", bus, devfn);
+	pcibios_read_config_dword(bus, devfn, PCI_BASE_ADDRESS_0, &io);
+	pcibios_read_config_word(bus, devfn, PCI_DEVICE_ID, &dev_id);
+	io &= ~3;
+	dev = tulip_probe1(bus, devfn, NULL, DC21142, -1);
+	if (dev) {
+		dev_node_t *node = kmalloc(sizeof(dev_node_t), GFP_KERNEL);
+		strcpy(node->dev_name, dev->name);
+		node->major = node->minor = 0;
+		node->next = NULL;
+		MOD_INC_USE_COUNT;
+		return node;
+	}
+	return NULL;
+}
+
+static void tulip_detach(dev_node_t *node)
+{
+	struct device **devp, **next;
+	printk(KERN_INFO "tulip_detach(%s)\n", node->dev_name);
+	for (devp = &root_tulip_dev; *devp; devp = next) {
+		next = &((struct tulip_private *)(*devp)->priv)->next_module;
+		if (strcmp((*devp)->name, node->dev_name) == 0) break;
+	}
+	if (*devp) {
+		unregister_netdev(*devp);
+		kfree(*devp);
+		*devp = *next;
+		kfree(node);
+		MOD_DEC_USE_COUNT;
+	}
+}
+
+struct driver_operations tulip_ops = {
+	"tulip_cb", tulip_attach, NULL, NULL, tulip_detach
+};
+
+#endif  /* Cardbus support */
+
+
+#ifdef MODULE
+#if LINUX_VERSION_CODE > 0x20118
+MODULE_AUTHOR("Donald Becker <becker@cesdis.gsfc.nasa.gov>");
+MODULE_DESCRIPTION("Digital 21*4* Tulip ethernet driver");
+MODULE_PARM(debug, "i");
+MODULE_PARM(max_interrupt_work, "i");
+MODULE_PARM(reverse_probe, "i");
+MODULE_PARM(rx_copybreak, "i");
+MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
+MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
+#endif
+
+/* An additional parameter that may be passed in... */
+static int debug = -1;
+
+int
+init_module(void)
+{
+	if (debug >= 0)
+		tulip_debug = debug;
+
+#ifdef CARDBUS
+	register_driver(&tulip_ops);
+	return 0;
+#else
+	return tulip_probe(NULL);
+#endif
+}
+
+void
+cleanup_module(void)
+{
+	struct device *next_dev;
+
+#ifdef CARDBUS
+	unregister_driver(&tulip_ops);
+#endif
+
+	/* No need to check MOD_IN_USE, as sys_delete_module() checks. */
+	while (root_tulip_dev) {
+		next_dev = ((struct tulip_private *)root_tulip_dev->priv)->next_module;
+		unregister_netdev(root_tulip_dev);
+		release_region(root_tulip_dev->base_addr, TULIP_TOTAL_SIZE);
+		kfree(root_tulip_dev);
+		root_tulip_dev = next_dev;
+	}
+}
+
+#endif  /* MODULE */
+
+/*
+ * Local variables:
+ *  SMP-compile-command: "gcc -D__SMP__ -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c tulip.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
+ *  compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c tulip.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
+ *  c-indent-level: 4
+ *  c-basic-offset: 4
+ *  tab-width: 4
+ * End:
+ */